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Donald C. Cook, Units 1 and 2, Annual Radiological Environmental Operating Report for 2017
	ML18137A203
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Site:	Cook
Issue date:	05/15/2018
From:	; Indiana Michigan Power Co
To:	; Office of Nuclear Reactor Regulation
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Enclosure to AEP-NRC-2018-34 Annual Radiological Environmental Operating Report ARE V A D oc. 1 03-3659--000 Annual Radiological Environmental Operating Report Indiana Michigan Power Company Donald C. Cook Nuclear Plant RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM January 1, 2017-December 31, 2017 Docket No. 50-315, 50-316 License No. DPR-58, DPR-74 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 TABLE OF CONTENTS 1.0 EXECUTIVE

SUMMARY

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7

2.0 INTRODUCTION

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..................... 8 2.1 General Plant Site Information

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..... 8 2.2 Program Design ................................................................................................... 8 2.3 Monitoring Zones ................................................................................................. 9 2.4 Pathways Monitored

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............................ 9 2.5 Descriptions of Monitoring Pathways ................................................................... 9 2.5.1 Air .........................................

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.................... 10 2.5.2 Surface Water ........................................................................................

10 2.5.3 Groundwater

.......................................................................................... 10 2.5.4 Drinking Water ...............

........................................................................ 10 2.5.5 Sediment ...........................................

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.... 11 2.5.6 Milk ........................................................................................................ 11 2.5.7 Fish ........................................................................................................ 11 2.5.8 Food Product. ......................

................................................................... 11 2.5.9 Broadleaf Vegetation

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11 2.5.10 TLD Monitoring

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12 2.5.11 Additional Groundwater Sample Analysis (non-ODCM required)

............ 12 2.5.12 Additional Groundwater Sample Analys i s (NEI Groundwater Protection Initiative (GPl)) ................................................................................................... 12 2.6 Samples Analyzed During 2017 ......................................................

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22 3.0 RADIOLOGICAL DATA

SUMMARY

TABLES .....................................

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........ 23 4.0 ANALYSIS OF ENVIRONMENTAL RESULTS ..............................................................

52 4.1 Sampling Program Deviations

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...................... 52 4.2 Comparison of Achieved LLD with Requirements

.............................................. 53 4.3 Results Compared Against Reporting Levels ...........

.......................................... 53 4.4 Data Analysis by Media Type -Discussion

....................................................... 54 4.4.1 A i r Particulate

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54 4.4.2 Ai r borne Iodine .........................................

.............................................. 57 L Do n ald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 TABLE OF CONTENTS (Continued)

4.4.3 Groundwater

(Well) .........................

....................................................... 57 4.4.4 Drinking Water .................................

...................................................... 59 4.4.5 Surface Water ........................................................................................ 60 4.4.6 Sediment..

.............................................................................................. 60 4.4.7 Milk ........................................................

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60 4.4.8 Food Products & Vegetation

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........................................................ 60 4.4.9 Fish ...............................

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................ 61 4.4.10 Gamma Exposure Rate .......................................................................... 61 4.4.11 Additional Sample Analysis (non-ODCM required samples) ................... 63 5.0 OFF-SITE DOSE EQUIVALENT COMMITMENTS

........................................................ 64 6.0

SUMMARY

OF REMP, ODCM , AND VENDOR PROCEDURE CHANGES ................... 66

7.0 REFERENCES

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..................... 71 APPENDIX A: SYNOPSIS OF ANALYSIS TECHNIQUES

..................................................... A-1 APPENDIX B: 2017 LAND USE CENSUS ............................................................................. B-1 APPENDIX C: QUALITY ASSURANCE PROGRAM .............................................................. C-1 APPENDIX D: 2017 DATA

SUMMARY

.................................................................................. D-1 APPENDIX E: PRE-OPERATIONAL RADIOLOGICAL MONITORING PROGRAM ............... E-1 APPENDIX F: NEI GROUNDWATER PROTECTION INITIATIVE

......................................... F-1 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 LIST OF TABLES Table 2.1 Sample Frequency

& Type of Analysis Based on ODCM, Rev. 25 , Attachment 3.19 and 12-THP-6010-RPP-636 Rev. 5 ....................

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............................... 13 Table 2.2 2017 Radiological Environmental Monitoring Program Sampling Types and Locations

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................... 14 Table 2.3 Environmental Lower Limit of Detection (LLD) Sensitivity Requirements. ODCM , Rev. 25 , Attachment 3.20 .......................................................................................................... 17 Table 2.4 Reporting Levels for Radioactivity Concentrations in Environmental Samples. ODCM Rev. 25 , Attachment 3.21 ..............

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...... 18 Table 2.5 REMP Samples Analyzed in 2017 ..................

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............................ 22 Table 3.0 Radionuclides Analyzed and Reported Within a Gamma Spectroscopy Analysis .... 24 Table 3.1 Radiological Environmental Program Summary Donald C Cook Nuclear Plant (January -December 2017) ..........................................................................................

........... 25 Table 3.2 2017 Environmental TLD Exposure Rate Measurements

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......................... 50 Table 3.3 2017 Environmental TLD Data Summary ....................

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51 Table 5.1 Cs-137 Concentrations in Fish Samples ..................................................................

64 Table 5.2 Cs-137 Concentrations in Broadleaf Samples ........................................

................. 65 Table 5.3 Summary of Off-Site Dose Commitments

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................. 65 Table 6.1 GEL 2017 Procedure Changes ............................................................................... 68 Table C-1 2017 Inter -Laboratory Radiological Proficiency Testing Results and Acceptance Criteria ..........................................

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............................................................... C-8 Table C-2 2017 Eckert & Ziegler Analytics Performance Evaluation Results ....................... C-21 Table C-3 REMP Intra-Laboratory Data Summary: Bias and Precision by Matrix ................

C-24 Table C-4 All Radiological Intra-Laboratory Data Summary: Bias and Precision by Matrix .. C-26 Table C-5 2017 Corrective Action Report Summary ................................

............................ C-33 Tab l e C-6 Percentage of Individual Dosimeters That Passed EDC Internal Criter i a January -December 2017 .................................................................................................... C-35 Table C-7 Mean Dos i meter Analyses (N=6) January-December 2017 .............................

C-36 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 TABLE OF CONTENTS (Cont i nued) Table C-8 Summary of Independent Blind Spike Dosimeter Testing January -December 2017 ......................................

.............................................................. C-36 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 LIST OF FIGURES Figure 2.1 Donald C. Cook Nuclear Plant Sampling Locations -1 Mile Radius ..................... 19 Figure 2.2 Donald C. Cook Nuclear Plant Sampling Locations

-10 Mile Radius .................... 20 Figure 2.3 Donald C. Cook Nuclear Plant Sampling Locations

-26 Mile Radius ..............

...... 21 Figure 4.1 Mean Annual Gross Beta Concentration in Air Particulate Samples Collected over 10 Years .....................

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......... 56 Figure 4.2 Mean Monthly Gross Beta Concentration in Air Particulate Samples Collected in 2017 .............................................................

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56 Figure 4.3 Tritium Detected in Groundwater Over the Past 10 Years (W1 -W7) .................... 58 Figure 4.4 Tritium Detected in Groundwater Over the Past 10 Years (W8 -W14 , MW20 , MW21) .....................

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............................................................. 58 Figure 4.5 Tritium Detected in Drinking Water Over the Past 10 Years ................

................... 59 Figure 4.6 Direct Radiation

-Quarterly TLD Results ...........................

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62 Figure 4.7 Direct Radiation , Annual Summary 10 Years Historical Trend .............

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63 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 1.0 EXECUTIVE

SUMMARY

Implementation of the Donald C. Cook Nuclear Plant (CNP) Radiological Environmental Monitoring Program (REMP) continued during the period January through December 2017, in accordance with station Technical Specifications and the Off-Site Dose Calculation Manual (ODCM). Radiochemical and radiometric analyses of REMP samples were performed to allow for detection and quantification of station-related radioactivity. A variety of potential exposure pathways were monitored by analyzing air, fruit, vegetation, water, fish and sediment samples. Thermoluminescent dosimeters (TLDs) were also utilized to monitor for gamma radiation exposure that might be attributed to plant activities.

Evaluation of sample analysis results considered the variability of natural or man-made radioactivity sources including their distribution and uptake in the environmental media. This variability depends on several possible factors such as:

contributions from cosmogenic radioactivity,

groundwater dynamics ,

station related release rates ,

past spatial variability of radioactive fallout from nuclear weapons tests , other nuclear events (e.g. Fukushima, Chernobyl), and the on-going redistribution of this fallout,

soil characteristics,

farming practices, and

feed type. Since these factors had the potential to cause considerable variation in sample analysis results, they were considered during the evaluation of sample analysis results. Based on an evaluation of sample analysis results, it was determined that non-tritium radioactivity detected by the REMP was from outside sources, such as fallout from nuclear weapons tests , external nuclear events and naturally-occurring radionuclides. For a list of naturally-occurring radionuclides and radionuclides analyzed, see Table 3.0. Examples include the following:

All four of the lake sediment samples contained Potassium-40 (K-40), three samples contained Thorium-228 (Th-228), and one sample contained Actinium-228 (Ac-228).

K-40 was detected in all eight REMP fish samples and trace levels of Cesium-137 (Cs-137) were observed in four indicator and two control station samples. Of the two non-REMP sport fish samples, two detected K-40 and one detected trace levels of Cs-137.

Both indicator and control food products samples contained K-40 and the control sample contained Beryllium-? (Be-7). All samples of broadleaf vegetation contained Be-7 and K-40. Additionally, three indicator samples out of the twenty-Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 eight samples contained low levels of Cs-137; one was considered a false positive by the laboratory due to low abundance , but was included in the off-si te dose analysis for conservatism.

Two of 145 water samples (drinking , ground , and surface) indicated the presence of K-40. Two samples also detected the presence of Th-228. Tritium was not detected in any of the 85 water samples.

All a i r particulate samples for all quarterly composites contained Be-7. No sample analysis results exceeded or approached specified reporting levels. This report was prepared for Indiana Michigan Power Company by AREVA Inc. Sample collection and preparation was performed by CNP. Laboratory analyses were performed by GEL Laboratories LLC (GEL). TLD analyses were performed by Environmental Dosimetry Company.

2.0 INTRODUCTION

2.1 General

Plant Site Information Indiana Michigan Power Company's CNP is located on the southeastern shore of Lake Michigan approximately one mile north of Bridgman , Michigan. The site consists of two pressurized water reactors:

Unit 1 , 1084 MWe (Net Des i gn Electrical Rating) and Unit 2 , 1194 MWe (Net Design Electrica l Rating). Unit 1 achieved initial criticality on January 18 , 1975 , and Unit 2 on March 10 , 1978. The Independent Spent Fuel Storage Installation (ISFSI) impacts are included with Unit 1 and Unit 2 statistics. The ISFSI cask system does not create any radioactive materials or have any radioactive waste treatment systems. Therefore , specific operating procedures for the control of radioactive effluents are not required. Certificate of Compliance No. 1014 Appendix A , Specification 3.1.1 , Multi-Purpose Canister (MPC), provides assurance that there are no radioactive effluents from the ISFSI. 2.2 Program Design The REMP for CNP was designed with specific objectives

To provide an early indication of the appearance or accumulation of radioactive material in the environment possibly caused by CNP activities. To provide assurance to regulatory agencies and the public that the environmental/dose impact of the CNP operation is known and within anticipated limits. To verify the adequacy and proper functioning of station effluent controls and monitoring systems. To comply with regulatory requirements and station Technical Specifications and provide records to document compliance.

The program was developed to meet the intent of Nuclear Regulatory Commission (NRC) Regulatory Guide 4.1 (Revision 1 ), " Programs for Monitoring Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Radioactivity in the Environs of Nuclear Power Plants"; NRC Regulatory Guide 4.8, " Environmental Technical Specifications for Nuclear Power Plants"; the NRC Branch Technical Position of November 1979, " An Acceptable Radiological Environmental Monitoring Program"; and NRC NUREG-0472, " Standard Radiological Effluent Technical Specifications for Pressurized Water Reactors." The REMP sampling requirements are given in Attachment 3.19, " Radiological Environmental Mon i toring Program Sample Stations , Sample Types , Sample Frequencies

," of the ODCM and summarized in Table 2.1 of this report. The identification of the required sampling locations is also provided in Attachment 3.19 of the ODCM and Table 2.2 of th i s report. The monitoring locations are shown graphically in Figures 2.1 -2.3. 2.3 Monitoring Zones The REMP is designed to allow compar is on of levels of radioactivity in samples from the area potentially influenced by the plant to levels found in areas not influenced by the plant. Generally , monitoring zones are designated as " indicator" or " control" locat i ons. For a particular pathway , the distinction between these designations is based on relative direction and distance from the plant. Sample analysis data from the two zones is evaluated and used to differentiate between radiation due to plant activities and that due to other sources (examples: nuclear weapons test fallout , external nuclear events , medical related tests and seasonal background variations). 2.4 Pathways Monitored Four pathway categories (airborne , waterborne , ingestion , and direct radiation) were monitored by the REMP. Each of these categories was monitored by the collection of one or more sample types listed and described below. Airborne Pathway: Waterborne Pathway: Ingestion Pathway: Direct Radiation: Air Surface Water Groundwater Drinking Water Sediment Milk (if available)

Fish Food Product (Fruit and Broadleaf Vegetation)

Broadleaf Vegetation (in lieu of milk and garden census, when necessary)

TLD Monitoring

2.5 Descriptions

of Monitoring Pathways Sample types and frequency of analysis are given in Table 2.1. The sample locations are listed in Table 2.2 and shown in Figures 2.1 -2.3. The program as described in this report includes both ODCM required and additional or informational samples. A description of the ODCM sampling program follows ,

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 and a detailed summary of the analytical methodologies employed by GEL Laboratories is provided in Appendix A. 2.5.1 Air Air samplers were installed at ten locations as required by the ODCM. These samplers operated continuously (except during weekly sample media replacement) within the specified sample flow rate range of 42 to 70 liters per minute (LPM). An Automatic Volume Totalizer was used to measure the total volume of air sampled, total unit run time and volumetric flow rate. Airborne particulates were collected by passing air through a 47-mm particulate filter. Charcoal cartridges were installed downstream of the particulate filters and were used to collect airborne radioiodine.

Both types of sample media were collected weekly , and to allow for the decay of radon daughter products , the particulate filters were held at least 100 hours0.00116 days 0.0278 hours 1.653439e-4 weeks 3.805e-5 months before being analyzed for gross-beta radioactivity. The particulate filters were composited by location as part of the quarterly gamma spectroscopy analysis. 2.5.2 Surface Water Two 500-ml surface water samples were collected from shoreline locations approximately 500 feet north and south of the plant centerline.

Samples were composited daily, and the gamma aliquot was preserved with nitric acid. A gamma isotopic analysis was performed on a monthly composite from each sample point. A tritium analysis was performed on a quarterly composite from each sample point. 2.5.3 Groundwater

Groundwater samples were collected quarterly from 17 wells, all within 4300 feet of the reactors. At each well, a static water elevation was determined and at least three well bore volumes were purged from the well using a groundwater pump or equivalent.

Two 1-liter and two 125-ml samples were then collected and the gamma isotopic aliquot was preserved with nitric acid. Gamma isotopic and tritium analyses were performed. 2.5.4 Drinking Water One-liter samples were collected daily at the intake of the water purification plants for St. Joseph and Lake Township.

The daily samples were composited over 14 days and the gamma isotopic/gross beta aliquot was preserved with nitric acid. The 14-day composite samples were analyzed for gross beta, gamma isotopic and low level Iodine (1-131 ). A quarterly composite was analyzed for Tritium (H-3).

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 2.5.5 Sediment Lake Michigan shoreline sediment samples were collected semi-annually approximately 500 feet north and south of the plant centerline.

A one-liter sample was collected from an area covered part time by wave action at each location. The sediment samples were analyzed for gamma isotopic content. 2.5.6 Milk Due to the retirement of several milk farms, the required number of indicator milk locations was not met in 2017. The milk sampling program has been considered suspended since 2010. Environmental personnel implemented broadleaf vegetation collection per the ODCM during the growing season as a result of not meeting the required number of milk indicator farms. 2.5.7 Fish Approximately four pounds of fish were collected twice this year from four locations using gill nets in Lake Michigan. The edible portions of the fish were analyzed for gamma-emitting radionuclides.

In addition to the ODCM required bi-annual fish samples, a once-a-year sampling for fish species important to sport fishing in Lake Michigan (trout , salmon and perch) was initiated in 2011 and continued through 2017. The same analysis is performed for the sport fish samples as that performed for the original REMP fish samples. 2.5.8 Food Product Three food product samples were collected annually at the time of harvest. Samples consist of greater than 300 grams of media and were collected from the highest deposition factor land sectors near CNP , with media present , and at an approximate distance of 20 miles from the plant in one of the less prevalent deposition factor land sectors. Samples were analyzed for gamma-emitting radionuclides. 2.5.9 Broadleaf Vegetation Broadleaf vegetation sampling in l i eu of milk collection was reinstated on December 16 , 2004 , and continued through 2017 during the growing season (June -October , when available).

Three samples consisting of greater than 300 grams of media were collected from two diffe r ent sectors within 5 miles of the plant in the highest deposition factor land sectors with media present , and one sample of similar vegetation grown 10-20 miles from the plant in one of the less prevalent deposition factor land sectors. Samples were analyzed for gamma-emitting radionuclides and low level 1-131.

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 2.5.10 TLD Monitoring Direct gamma radiation exposure was continuously monitored with the use of Panasonic UD-814 AS4 TLDs. TLDs were posted at 27 locations in the environs surrounding CNP and replaced quarterly. 2.5.11 Additional Groundwater Sample Analysis (non-ODCM required)

During 2017, additional groundwater samples not required by the ODCM were collected for informational purposes. These samples were collected at several onsite locations in 2017 and analyzed for gamma , tritium , gross beta and gross alpha , by GEL laboratories.

2.5.12 Additional Groundwater Sample Analysis (NEI Groundwater Protection Initiative (GPI)) During 2017 , additional groundwater samples not required by the ODCM were collected for informational purposes.

These samples were collected at several onsite locations in 2017 and analyzed for tritium by CNP. The full discussion of the GPI sample data and analysis is contained in Appendix F.

Do n ald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. Table 2.1 Sampling Frequency

& Type of Analysis Based on ODCM, Rev. 25, Attachment 3.19 and 12-THP-6010-RPP-636 Rev. 5 Exposure Pathway Number of Sampling & and/or Sample Locations Collection Type of Analysis Frequency Gamma Exposure-27 Quarterly Direct Radiation

-Quarterly Environmental TLD Continuous Gross Beta and 1-131 -Weekly Airborne 10 sampler-weekly Gamma Isotopic -Quarterly on filter change composite (by location)

Groundwater 17 Quarterly Gamma Isotopic and Tritium -(Well Water) Quarterly Once per calendar Gamma Isotopic -Monthly on Surface Water 2 day composite Tritium -Quarterly on composite Gamma Isotopic , Gross Beta Drinking Water 2 Once per calendar and 1-131 Low Level (LL) -on day 14 day composite. Tritium -Quarterly on composite Sediment 2 Semiannually Gamma Isotopic Lake Once every 15 Milk 4 days or Monthly if Gamma Isotopic and 1-131 Low (if available) animals are fed Level (LL) -per sample stored feed. Fish (edible portion) 4 2 per year Gamma Isotopic -per sample Fish (edible portion) 2 1 per year Gamma Isotopic -per sample Food Products-2 At time of harvest Gamma Isotopic -per sample Grape Broadleaf Monthly when Gamma Isotopic and 1-131 Low Vegetation

-(in lieu 3 of milk sampling) available Level (LL) -per sample Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Tab l e 2.2 2017 Rad i ological Environmental Monitoring Program Samp l ing Types and Locations Exposure Pathway Sample Indicator/ (Sample Type Location Description Designation)

Station Control Airborne a. Filter (AP/ CF) ONS-1 I 1945 feet @ 18° from Plant axis ONS-2 I 2338 feet @ 48° from Plant axis ONS-3 I 2407 feet @ 90° from Plant axis ONS-4 I 1852 feet @ 118° from Plant axis ONS-5 I 1895 feet @ 189° from Plant axis ONS-6 I 1917 feet@ 210° from Plant axis NBF C 15.6 miles SSW -New Buffalo , Ml SBN C 26.2 miles SE -South Bend , IN DOW C 24.3 miles ENE -Dowagiac , Ml COL C 18.9 miles NNE -Coloma , Ml Waterborne

a. Ground Well (WG) W-1 1969 feet @ 11 ° from Plant axis W-2 2302 feet @ 63° from Plant axis W-3 3279 feet @ 107° from Plant axis W-4 418 feet @ 301 ° from Plant axis W-5 404 feet @ 290° from Plant axis W-6 424 feet @ 273° from Plant axis W-7 1895 feet @ 189° from Plant axis W-8 1274 feet@ 54° from Plant axis W-9 144 7 feet @ 22° from Plant axis W-10 4216 feet @ 129° from Plant axis W-11 3206 feet @ 153° from Plant axis W-12 2631 feet@ 162° from Plant axis W-13 2152 feet @ 182° from Plant axis W-14 1780 feet@ 164° from Plant axis W-15 725 feet @ 202 ° from Plant axis (MW-12c) W-16 I 22 0 0 feet @ 208 ° from Plant axis (MW-20) W-17 I 2200 feet @ 180 ° from Plant axis (MW-21) b. Drinking (WO) STJ C 9 miles NE -St. Joseph Public Intake Station LTW I 0.6 mile S -Lake Twp. Public Intake Station Do n ald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Exposure Pathway Sample Indicator/ (Sample Type Station Con t rol Location Description Designation)

C. Surface (WS) SWL-2 I -500 feet S of Plan t Centerline

-Site Boundarv SWL-3 I -500 feet N of Plan t Centerl i ne -Site Boundarv d. Sed i ment (SE) SL-2 I -500 fee t S of Plant Centerline

-Site Boundarv SL-3 I -500 fee t N of Plant Centerl i ne -Site Boundarv In g estion a. Milk (TM) None I None ava ila ble None I None ava i lable None I None ava i lable None C None ava i lable b. F i sh (FH) ONS-N I 0.3 mile N , Lake M i chiaan ONS-S I 0.4 mile S , Lake Michiaan TRT/SLM* I Trout and salmon within 20 miles of CNP, Lake Michiaan PRCH* I Perch with i n 10 mil e s of CNP , Lake Mi c hiaan OFS-N C 3.5 miles N , Lake Michiaan OFS-S C 5.0 miles S , Lake M i chiaan C. Food Products Nearest samples to Plant in the (TF) ** ONS-G I h i ghest 0/Q land sector containing media. In a land sector containing media, OFS-G C -20 miles from the Plant, in one of the less prevalent 0/Q land Sectors d. V egetation (TV) ONS1-V I 3 samples of diffe re nt kinds o f [br o ad leaf vegetat i on taken in lieu of m ilk ONS2-V I broadleaf vegetation collected at the or g arden census ] ONS3-V I si t e boundary , with in 5 mi. of the ** plant , in each of two different sectors ONS4-V I with the highest annual avera g e D/Q ONS5-V I containing media. OFS1-V C 1 background sample of simila r vegetation grown 10-20 miles distant OFS2-V C in one of the less prevalent wind d i rections.

Samples not listed in ODCM Attachment 3.19 ** See F i gures 2.1 , 2.2 , and 2.3 for exact locations for 2017 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Table 2.2 2017 Radiological Environmental Monitoring Program Sampling Types and Locations (Continued)

Exposure Pathway Sample (Sample Type Station Location Description Designation)

Direct Radiation

a. TLD T-1 1945 feet @ 18° from Plant axis T-2 2338 feet @ 48° from Plant axis T-3 2407 feet @ 90° from Plant axis T-4 1852 feet @ 118° from Plant axis T-5 1895 feet @ 189° from Plant axis T-6 1917 feet @ 210° from Plant axis T-7 2103 feet@ 36° from Plant axis T-8 2208 feet @ 82° from Plant axis T-9 1368 feet @ 149° from Plant axis T-10 1390 feet @ 127° from Plant axis T-11 1969 feet @ 11 ° from Plant axis T-12 2292 feet @ 63° from Plant axis NBF 15.6 miles SSW -New Buffalo , Ml SBN 26.2 m i les SE -South Bend , IN DOW 24.3 miles ENE -Dowagiac , Ml COL 18.9 miles NNE -Coloma , Ml OFT-1 4.5 miles NE -Pole #B294-44 OFT-2 3.6 miles NE -Stevensville Substation OFT-3 5.1 m i les NE -Pole #B296-13 OFT-4 4.1 m i les E -Pole #B350-72 OFT-5 4.2 miles ESE -Pole #B387-32 OFT-6 4.9 m i les SE -Pole #B426-1 OFT-7 2.5 m il es S -Bridgman Substation OFT-8 4.0 m i les S -Pole #B424-20 OFT-9 4.4 miles ESE -Pole #8369-214 OFT-10 3.8 miles S -Pole #B422-99 OFT-11 3.8 m i les S -Pole #B423-12 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Table 2.3 Environmental Lower Limit of Detection (LLD) Sensitivity Requirements.

ODCM, Rev. 25, Attachment 3.20 Food Prod. Water Milk Air Filter Fish Sediment Analysis (pCi/kg, (pCi/L) (pCi/L) (pCi/m 3) (pCi/kg, (pCi/kg, wet) wet) dry) Gross Beta 4 0.01 H-3 2000 Mn-54 15 130 Co-58 15 130 Co-60 15 130 Fe-59 30 260 Zn-65 30 260 Zr-95 30 Nb-95 15 1-131 60 1 1 0.07 Cs-134 60 15 15 0.06 130 150 Cs-137 60 18 18 0.06 150 180 Ba-140 60 60 La-14 0 15 15 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Table 2.4 Reporting Levels for Radioactivity Concentrations in Environmental Samples. ODCM Rev. 25, Attachment 3.21 Food Prod. Water Milk Airborne Fish Analysis (pCi/kg, (pCi/L) (pCi/L) Filter (pCi/kg, wet) (pCi/m 3) wet) H-3 20000 Mn-54 1000 30000 Co-58 1000 30000 Co-60 300 10000 Fe-59 400 10000 Zn-65 300 20000 Zr-95 400 Nb-95 400 1-131 100 2 3 0.90 Cs-134 1000 30 60 10 1000 Cs-137 2000 50 70 20 2000 Ba-140 200 300 La-140 200 300 L __ Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017

X +

EB ... Figure 2.1 Donald C. Cook Nuclear Plant Sampling Locations -1 Mile Radius (See Table 2.2 for information on sampling locations) 1 mi l e Air/TLD Dri n k ing Wate r i sh G ~ndwate r Gro dwate r (SG) \,.. ...0 52-V W-7 \ W-14 + + ON 5--0 -6 a ON 5-5/T .... Oil 53-V +1,M'-2Q W , 1 l Ml\1-2 1 LT WI II TAKE , * . ., *, + 0 W-12 + 1-,-1 S G-4

l ' t ' .>>u;.r"°_

-1 ! .'* + > --------.. T-10 ,,, ... ,1**" ~-4/f:'.1' --~ W-11 +

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Figure 2.2 Donald C. Cook Nuclear Plant Sampling Locations

-10 Mile Radius (See Table 2.2 for information on sampling locations)

Legend .A. Bro ad leaf e Donald C. Cook Nu cle ar Plant (CNP)

TLD

Drinking Wat e r X Fish Lake Michigan See 1-mile Radius Map for Deta il OFS-S X .,,,., .. " .,_, *-p~ OFS-N X i l W "C!U.rr Weea ftd 'll,. W*LlflGO-f<fJ

'ft ... ~""' i't. OFT-3 * ' v, JoM Been RO OFT-4

tNl 1 nmR d '""'Iii n ,,,.oj.&.

U lt-(,,,., (-.-. .,.. UJt o d.a W I..Nt..,n C r ee\ R d l ,., 1.-k c-'fop .. ...... c o.., lr)r ..... I OFT-6 f WSnow R. ! " ,*~ .. ,-,,.,,.~ I o.s 1 I 2 0 ---20-3 4 L ,ameee ** -* ":!.. 5 1Mi les Do n ald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Figure 2.3 Donald C. Cook Nuclear Plant Sampling Locations

-26 Mile Radius (See Table 2.2 for information on sampling locations)

Broadlear

AirfTLD

Donald c. Cook Nuclear Plant (CNP) See 10-mile Rad i us Map for Deta i l s Lake Michigan ***!1.t\, , L.1 1"1 ... l., f;*l'qh, , .. , , ..... 1 r 1 n ...... , ...... . ...... ~, ' . } . ;:)"~ huio:;'?'

,~*-,)1_5 __ 10 I . _ ... !r -fl\t.fl *1 ',-20 , 25 30 Miles Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 2.6 Samples Analyzed During 2017 Table 2.5 below summarizes the number of samples of each type analyzed during the 2017 reporting period and the number of analyses by station type for each media. A more detailed breakdown of the various analyses performed is provided in the data summary tables in Section 3 , Table 3.1. Table 2.5 REMP Samples Analyzed in 2017 Sample Type Number of REMP Samples Total Indicator Control Gamma Exposure 108 92 16 Environmental TLD Air Particulate 519 312 207 Charcoal Filter 519 312 207 Groundwater 69 69 0 Surface Water 24 24 0 Drinking Water 52 26 26 Sediment (Lake) 4 4 0 Food Products 3 2 1 (grapes) Vegetation 28 24 4 (broad leaf) Milk* 0 0 0 Fish 8 4 4 Total All Types 1 , 334 869 465

No milk sampling locat i ons were available.

Program is currently suspended.

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 3.0 RADIOLOGICAL DATA

SUMMARY

TABLES This section summarizes the analytical results of the environmental samples that were collected during 2017. These results, shown in Table 3.1, are presented in a format similar to that prescribed in the NRC's Radiological Assessment Branch Technical Position on Environmental Monitoring (Reference 1 ). The results are ordered by sample media type and then by radionuclide for the monitoring zones described in Section 2.3. The units for each media type are also given. A summary of the data from TLD direct radiation measurements is provided in Table 3.2. The complete listing of quarterly TLD data is provided in Table 3.3. The left-most column of Table 3.1 contains the radionuclide of interest, the total number of analyses for that radionuclide in 2017 , and the number of measurements that exceeded the Reporting Levels found in Table 2.4. The latter are classified as "Non-routine" measurements.

The second column lists the required Lower Limit of Detection (LLD) for those radionuclides that have detection capability requirements specified in Table 2.3. The absence of a value in this column indicates that no LLD is specified in the ODCM for that radionuclide in that media. For each media type and radionuclide , the remaining three columns summarize the data for the following categories of monitoring locations: (1) the Indicator stations , which were within the range of influence of the plant and which could be affected by plant activities; (2) the station which had the highest mean concentration during 2017 , and (3) the Control stations, which were beyond the influence of the plant. Direct radiation monitoring stations (using TLDs) were grouped into onsite and offsite stations. These are shown in Table 3.2. In each of these columns, for each radionuclide , the following are given:

The mean value of all concentrations including negat i ve values and values that were not considered "detectable".

The lowest and highest concentration.

The number of detectable measurements divided by the total number of measurements. A sample was considered a "detectable measurement" when the concentration exceeded its associated minimum detectable concentration (MDC). The standard deviation on each measurement represents only the random uncertainty associated with the radioactive decay process (counting statistics), and not the propagation of all possible uncertainties in the analytical procedure. The radionuclides reported in this section represent those that: (1) had an LLD requirement in Attachment 3.20 or a Reporting Level listed in Attachment 3.21 of the ODCM , (2) had a positive measurement of radioactivity, whether it was naturally-occurring or man-made, or (3) were of specific interest for any other reason. The radionuclides that were routinely analyzed and reported by GEL Laboratory in a gamma spectroscopy analysis are found in Table 3.0.

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Table 3.0 Radionuclides Analyzed and Reported Within a Gamma Spectroscopy Analysis Nuclide Symbol Actinium-228* Ac-228 Antimony-124 Sb-124 Ant i monv-125 Sb-125 Barium-140 Ba-140 Beryllium-?* Be-7 Cerium-141 Ce-141 Cerium-144 Ce-144 Cesium-134 Cs-134 Cesium-137 Cs-137 Chrom i um-51 Cr-51 Cobalt-57 Co-57 Cobalt-58 Co-58 Cobalt-60 Co-60 lodine-1 31 1-131 lron-59 Fe-59 Lanthanum-140 La-140 Manganese-54 Mn-54 Niobium-95 Nb-95 Potassium-40

K-40 Ruthen iu m-103 Ru-103 Ruthen i um-106 Ru-106 Selen i um-75 Se-75 Silver-108m Ag-108m Silver-110m Ag-110m Thorium-228* Th-228 Zinc-65 Zn-65 Zirconium-95 Zr-95

Naturally occurring GEL Laborato r ies has been analyzing CNP's environmental samples since Jun e 2010 , when the AREVA Environmental Laboratory (ELAB) discontinued opera t ions. Dur i ng this t r ansitional pe ri od there were slight differences i n how the labs treated the meas ur ement data. The ma i n differences were the treatment of t he Th-232 decay se ri es , the Ba-140 decay series , and the Zr-95 decay series. Where the AREVA ELAB used one daughte r rad i onuclide to i nfer the decay series , GEL Labs measures each of the radionuclides independently. Both analysis methods meet or exceed the reporting requirements , as detailed in the ODCM. One other important difference between the labo r atories' analysis methods is the determination of a statist i cally significant positive concentration. The AREVA ELAB had historically flagged concentrations above three times the uncertainty in the measurement , or 3 cr. GEL Labs maintains a check on concentrations above th e MDC.

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Table 3.1 Radiological Environmental Program Summary Donald C. Cook Nuclear Plant (January -December 2017) MEDIUM: Air Particulates (AP) UNITS: pCi/cubic meter Indicato r S t ations Station With H i ghest Mean Control Stations --------------------

Radionuc l ides Mean Station Mean Mean (No. Anal y ses) Required Range Range Range Non-Rou ti ne* LLD No. Detected** No. Detected** No. Dete cted** BETA (519) 0.01 2.5E -2 ONS-3 2.6E -2 2.5E -2 (0) 8.9 -54.9)E -3 1.1 -5.2)E -2 9.2 -49.3)E -3 (312/ 312) (52/ 52) (207 / 207) Be-7 (40) l.4E -1 ONS-3 l.5E -1 l.4E -1 (0) 9.9 -18.6)E -2 1.2 -1. 9)E -1 9.6 -18.l)E -2 (24/ 24) (4/ 4) (16/ 16) K-40 (40) O.OE 0 DOW 1. 6E -3 l.OE -3 (0) -3.0 -3.0)E 1.2 -6.7)E 1. 7 -6.7)E -3 (0/ 24) (0/ 4) (0/ 16) Cr-51 (40) 2.0E -3 ONS-1 6.2E -3 4.0E -4 (0) -9.1 -15.7)E -3 8.9 -157.0)E 8.2 -9.5)E -3 (0/ 24) (0/ 4) (0/ 16) Mn-54 (40) O.OE 0 SBN 6.8E -5 3.lE -5 (0) -2.5 -1. 6)E 6.7 -23.3)E 1.1 -2.3)E -4 (0/ 24) (0/ 4) (0/ 16) Co-57 (40) -2.6E -5 ONS-3 1. 7E 1. 6E -5 (0) -1.1 -0.6)E 5.2 -4.7)E 1.4 -1.l)E -4 (0/ 24) (0/ 4) (0/ 16) Co-58 (40) 0.0E 0 ONS-3 l.OE 1.lE -4 (0) -3.6 -2.8)E 4.1 -27.8)E 5.9 -4.0)E -4 (0/ 24) (0/ 4) (0/ 16) Fe-59 (40) l.4E -4 ONS-1 4.8E 8.5E -5 (0) -1.2 -l.2)E -3 1.3 -10.l)E 1.5 -0.8)E -3 (0/ 24) (0/ 4) (0/ 16) Co-60 (40) O.OE 0 NBF 1. 6E -4 5.lE -5 (0) -1. 4 -l.3)E 1. 9 -276.0)E 2.1 -2.8)E -4 (0/ 24) (0/ 4) (0/ 16) Zn-65 (40) -3.8E -5 ONS-5 l.2E 7.8E -5 (0) -5.8 -5.4)E 3.4 -4.0)E 5.3 -3.4)E -4 (0/ 24) (0/ 4) (0/ 16) Se-75 (40) l.lE -5 DOW 2.9E -4 4.6E -5 (0) -3.1 -3.l)E 7.4 -104.0)E 3.7 -10.4)E -4 (0/ 24) (0/ 4) (0/ 16) Nb-95 (40) l.lE -5 ONS-1 2.4E -4 8.9E -5 (0) -3.3 -5.3)E -4 3.9 -52.7)E 3.2 -6.4)E -4 (0/ 24) (0/ 4) (0/ 16)

Donald C. Cook Nu c lear Plant Annual Radiological Env i ronmental Operating Report 20 17 Table 3.1 Rad i ological Env ir onmental Program Su m m ary Donald C. C ook Nucl ear Plan t (Janu ary -De.cemb er 2017) M E DIUM: Air Particula t e s (AP) UN IT S: pC i/cu bi c meter Indicat o r S tations S t at i on With H i ghest Mean Control S ta t ions -----------------------------------

R a d ionuclides Mean S tatio n Mean M ean (No. A nalyses) Require d Range Range Range Non-Ro uti n e* LLD N o. D ete c ted** No. D e t ec t ed** No. D etec t ed** Zr-95 (40) O.OE 0 DOW 1. 9E 6.lE -5 (0) -5.0 -4.l)E 1. 9 -3.B)E 6.1 -3.B)E -4 (0/ 24) (0/ 4) (0/ 16) Ru-10 3 (40) l.OE -4 ONS-6 3.4E 3.4E -5 (0) -3.9 -7.5)E 2.7 -7.2)E 3.3 -5.2)E -4 (0/ 24) (0/ 4) (0/ 16) Ru-106 (4 0) 5.5E -5 D OW l.lE -3 3.BE -4 (0) -1. 6 -2.6)E -3 5.5 -15.5)E 1.2 -1. 6)E -3 (0/ 24) (0/ 4) (0/ 16) Ag-1 08m (40) 4.2E -5 SBN 5.5E -5 O.OE 0 (0) -9.5 -32.B)E 4.7 -133.0)E 2.5 -l.B)E -4 (0/ 24) (0/ 4) (0/ 1 6) Ag-1 10 m (40) O.OE 0 O NS-1 8.4E 3.6E -5 (0) -4.3 -3.B)E 1. 5 -21.1) E 3.0 -2.3)E -4 (0/ 24) (0/ 4) (0/ 16) Sb-1 24 (40) -3.5E -5 COL 4.BE 1. 9E -5 (0) -9.2 -10.0)E -4 1.8 -109.0)E 1.0 -l.l)E -3 (0/ 24) (0/ 4) (0/ 16) Sb-1 2 5 (40) 7.9E -5 O NS-2 2.7E 8.lE -5 (0) -3.0 -6.9)E -4 2.0 -68.7)E 5.1 -3.3)E -4 (0/ 24) (0/ 4) (0/ 16) 1-13 1 (4 0) -2.3E -2 CO L 2.0E -1 5.0E -2 (0) -5.0 -3.9)E 1.0 -9.0)E 2.7 -9.0)E -1 (0/ 24) (0/ 4) (0/ 16) Cs-134 (40) 0.06 7.4E -5 ONS-1 l.5E -4 O.OE 0 (0) -1. 7 -3.6)E -4 5.3 -27.B)E 1.2 -l.B)E -4 (0/ 24) (0/ 4) (0/ 16) C s-1 3 7 (40) 0.06 O.OE 0 DO W 5.4E -5 l.9E -5 (0) -1.5 -l.B)E -4 2.0 -13.9)E 9.9 -17.3)E -5 (0/ 24) (0/ 4) (0/ 16) Ba-140 (40) -2.5E -3 O NS-3 1. 9E 1.3E -2 (0) -1.1 -O.B)E 1.2 -60.B)E 6.3 -3. 6)E -2 (0/ 24) (0/ 4) (0/ 16) L a-1 4 0 (40) -2.B E -3 NBF l.lE -2 3.BE -3 (0) -3.6 -2.2)E 2.4 -22.7)E 2.3 -3.0)E -2 (0/ 24) (0/ 4) (0/ 16)

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Radionuc l ides (No. Anal yses) Required Non-Rout i ne* LLD Ce-141 (40) (0) Ce-144 (40) (0) Ac-228 (40) (0) Th-228 (40) (0) Table 3.1 Radiological Environmental Program Summary Donald C. Cook Nuclear Plant (January

December 2017) MEDIUM: Air Particulates (AP) UNITS: pCi/cubic meter Ind icator Stations Station With Highest Mean ------------------------

Mean Station Mean Range Range No. Detected** No. Detected** 2.6E -4 ONS-5 l.4E 1. 4 -4.l)E 7.4 -37.5)E -4 (0/ 24) (0/ 4) -1. 7E -5 COL 1. 9E 1.1 -0.9)E 7.4 -8.2)E -4 (0/ 24) (0/ 4) 4.9E -5 ONS-6 3.lE 9.8 -11. 0) E -4 8.8 -1030.0)E -6 (0/ 24) (0/ 4) l.2E -4 ONS-3 3.6E 5.4 -8.2)E -4 8.6 -82.2)E -5 (0/ 24) (0/ 4)

Non-R o u tine refers to radionuclides exceeding the Reporting Levels in ODCM Attachment 3.21 of the ODCM ** The fraction of sample analysis yielding detectable measurements (i.e., > MDC) is shown in parentheses. *** Mean v alue is set to O.OE O for calculated mean values with e x ponent less than E-06. Control Stations Mean Range No. Detected** -2.4 E 1.1 -1.4)E -3 (0/ 16) -1.4E 9.4 -8.2)E -4 (0/ 16) -3.4E 7.3 -9.l)E -4 (0/ 16) 2.2E 3.5 -5.5)E -4 (0/ 16)

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Rad i onucl i des (No. Analyses)

Non-Routine*

1-131 (519) (0) Table 3.1 Radiological Environmental Program Summary Donald C. Cook Nuclear Plant (January -December 2017) MEDIUM: Charcoal Cartridge (CF) UNITS: pCi/cubic meter Indicator Stations Mean Station Station With Highest Mean Mean Required Range Range LLD No. Detected** 0.07 1. 9E 1.4 -2.2)E -2 (0/ 312) ONS-2 No. Detected** 6.7E 6.2 -22.4)E -3 (0/ 52)

Non-Routine refers to radionuclides exceeding the Reporting Levels in ODCM Attachment 3.21 of the ODCM ** The fraction of sample analysis yielding detectable measurements (i.e., > MDC) is shown in parentheses. *** Mean value is set to O.OE O for calculated mean values with exponent less than E-06. Control Stations Mean Range No. Detected** -2.lE 1.1 -1.4)E -2 (0/ 2 07)

Donald C. Cook Nuclear Plant Annual Radiological E nvironmental Operating Report 2017 Tab l e 3.1 Radiologi c al Environmen ta l Progr a m S ummary Donald C. Coo k Nuclear P la n t (Janu a ry -D e cember 20 17) MEDI UM: Fish (F H) UNITS: p C i/kg Ind icator S tat i o n s S t a tio n With H i g h es t Mean C o n t rol S tatio n s --------------------------------------

Radion u c li des Me an St a t ion M ean M ea n (N o. An al y ses) R equired R a ng e R ange Ra ng e No n-Rou t i ne* L LD No. D etected** N o. D etecte d** No. D e t ected** B e-7 (8) 5.lE 0 O NS-N l.3E 1 -1. 6E 1 (0) -5.3 -22.3)E 0 3.0 -22.3)E 0 -4.1 -0.6)E 1 (0/ 4) (0/ 2) (0/ 4) K-40 (8) 3.5E 3 O NS-S 3.7E 3 3.lE 3 (0) 3.3 -3.9)E 3 3.5 -3.9)E 3 2.7 -3.4)E 3 (4/ 4) (2/ 2) (4/ 4) Cr-51 (8) -1. 6E 1 O FS-S -l.5E 0 -1. 6E 0 (0) -4.0 --0.3)E 1 -7.5 -4.5)E 0 -7.6 -4.5)E 0 (0/ 4) (0/ 2) (0/ 4) M n-54 (8) 130 2.9E 0 O NS-N 2.9E 0 -4.lE -1 (0) 3.7 -52.5)E -1 2.1 -3.B)E 0 -3.5 -3.5)E 0 (0/ 4) (0/ 2) (0/ 4) Co-57 (8) l.5E 0 O NS-N l.BE 0 6.4E -1 (0) 4.3 -23.S)E -1 1.3 -2.4)E 0 -1.3 -2.5)E 0 (0/ 4) (0/ 2) (0/ 4) Co-5 8 (8) 130 4.5E -1 O NS-S 2.5E 0 6.6E -1 (0) -2.6 -4.2)E 0 9.3 -41. 6)E 3.9 -5.3)E 0 (0/ 4) (0/ 2) (0/ 4) F e-59 (8) 260 -l.5E -1 ON S-N -6.2E 3.lE 0 (0) -4.7 -4.3)E 0 -5.9 -4.7)E 1.1 -0.3)E 1 (0/ 4) (0/ 2) (0/ 4) Co-60 (8) 130 -l.2 E -1 O FS-S 4.4E 0 2.4E 0 (0) -4.1 -5.3)E 0 1.4 -7.4)E 0 -5.0 -74.2)E -1 (0/ 4) (0/ 2) (0/ 4) Z n-65 (8) 26 0 -2.SE -1 O NS-S 6.5E 0 l.SE 0 (0) -8.0 -11.0)E 0 1. 9 -1 1.0)E 0 -4.3 -9.9)E 0 (0/ 4) (0/ 2) (0/ 4) S e-7 5 (8) 7.2E -1 O NS-S l.2E 0 -1.lE 0 (0) -1.1 -1. 6)E 0 9.5 -14.4)E 2.0 --0.l)E 0 (0/ 4) (0/ 2) (0/ 4) Nb-95 (8) l.2E 0 O NS-S 2.2E 0 6.BE -1 (0) -2.1 -2 8.B)E -1 1.6 -2.9)E 0 -5.3 -7.l)E 0 (0/ 4) (0/ 2) (0/ 4) Z r-95 (8) -9.9E -1 O N S-N -3.7E 5.3E 0 (0) -5.9 -2.7)E 0 -1.1 -0.3)E 0 -7.1 --4.0)E 0 (0/ 4) (0/ 2) (0/ 4)

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Table 3.1 Radiological Environmental Program Summary Donald C. Cook Nuclear Plant (January -December 2017) MEDIUM: Fish (FH) UNITS: pCi/kg Indicator Stations Station With Highest Mean Contro l Stations ------------------------

Radionu clides Mean Station Mean Mean (No. Analyses)

Required Range Range Range Non-Rou tine* LLD No. Detect ed** No. Detected** No. Detected** Ru-103 (8) 2.5E -1 OFS-N l.3E 0 l.3E 0 (0) -6.3 -17.9)E -1 7.7 -18.5)E -1 7.7 -18.5)E -1 (0/ 4) (0/ 2) (0/ 4) Ru-106 (8) -l.8E 1 OFS-N 2.9E 1 2.4E 1 (0) -3.1 --0.3)E 1 6.3 -5 2.3)E 0 6.3 -52.3)E 0 (0/ 4) (0/ 2) (0/ 4) Ag-108m (8) -2.3E -1 OFS-N 4.7E 4.0E -1 (0) -1.4 -l.2)E 0 3.6 -5.7)E 2.6 -0.6)E 0 (0/ 4) (0/ 2) (0/ 4) Ag-110m (8) -l.2E 0 OFS-S 2.4E 0 l.3E -1 (0) -3.2 -2.3)E 0 2.0 -2.8)E 0 -4.8 -2.8)E 0 (0/ 4) (0/ 2) (0/ 4) Sb-124 (8) -2.lE 0 OFS-N 4.lE 0 -l.2E 0 (0) -1.1 -0.7)E 1 2.3 -6.0)E 0 -1.4 -0.6)E 1 (0/ 4) (0/ 2) (0/ 4) Sb-125 (8) 2.0E 0 ONS-S 2.6E 0 -3.8E -2 (0) -6.7 -47.7)E -1 4.0 -47.7)E 1. 9 -2.3)E 0 (0/ 4) (0/ 2) (0/ 4) 1-131 (8) 3.5E -1 ONS-N l.8E 0 -3.8E 0 (0) -4.1 -5.8)E 0 -2.2 -5.8)E 0 -6.9 --0.l)E 0 (0/ 4) (0/ 2) (0/ 4) Cs-134 (8) 130 2.0E 0 ONS-N 3.6E 0 -6.lE -1 (0) -1. 6 -8.5)E 0 -1.3 -8.5)E 0 -3.3 -l.3)E 0 (0/ 4) (0/ 2) (0/ 4) Cs-137 (8) 150 2.lE 1 ONS-N 2.lE 1 l.7E 1 (0) 1. 9 -2.3)E 1 2.0 -2.3)E 1 8.8 -33.3)E 0 (4/ 4) (2/ 2) (2/ 4) Ba-140 (8) -9.6E 0 OFS-N 4.5E 0 -7.2E -2 (0) -3.3 -0.9)E 1 5.0 -85.6)E 1. 8 -0.9)E 1 (0/ 4) (0/ 2) (0/ 4) La-140 (8) 3.lE 0 ONS-S 6.3E 0 -3.5E 0 (0) -1.2 -12.0)E 0 6.9 -120.0)E 9.1 -0.6)E 0 (0/ 4) (0/ 2) (0/ 4) Ce-141 (8) -3.3E 0 OFS-N -8.5E l.3E 0 (0) -6.4 --1. 4)E 0 -3.6 -3.4)E 0 -8.4 -3.4)E 0 (0/ 4) (0/ 2) (0/ 4)

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Rad i onu cl ides (No. Anal y ses) Required Non-Rout i ne* LLD Ce-144 (8) (0) Ac-228 (8) (0) Th-228 (8) (0) Table 3.1 Radiological Environmental Program Summary Donald C. Cook Nuclear Plant (January -December 2017) MEDIUM: Fish (FH) UNITS: pCi/kg Indicator Stations Station With Highest Mean ------------------------------------------------------------------------Mean Station Mean Range Range No. Detected** No. Detected** -3.0E 0 ONS-N 2.2E 0 -9.3 -8.0)E 0 -3.6 -8.0)E 0 (0/ 4) (0/ 2) -l.2E 0 ONS-S 2.0E 0 -9.4 -9.3)E 0 -5.4 -9.3)E 0 (0/ 4) (0/ 2) -7.9E -2 OFS-S 5.3E 0 -5.5 -10.l)E 0 -8.5 -19.0)E 0 (0/ 4) (0/ 2)

Non-Routine refers to radionuclides e x ceeding the Reporting Levels in ODCM Attachment 3.21 of the ODCM ** The fra c tion of sample analysis yielding detectable measurements (i.e., > MDC) is shown in parentheses.

- - Mean v alue is set to O.OE O for calculated mean values with exponent l ess than E-06. Control Stations Mean Range No. Detected** -l.2E 1 -1.6 --0.6)E 1 (0/ 4) -7.8E 0 -2.3 -l.9)E 1 (0/ 4) 1. 6E 0 -8.5 -19.0)E 0 (0/ 4)

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 20 1 7 Ra d ion uc l ide s (No. An aly s es) R equ ired Non-Ro utine* LLD Be-7 (4) (0) K-40 (4) (0) Cr-5 1 (4) (0) Mn-54 (4) (0) Co-57 (4) (0) Co-5 8 (4) (0) Fe-5 9 (4) (0) Co-60 (4) (0) Zn-6 5 (4) (0) Se-7 5 (4) (0) Nb-95 (4) (0) Zr-95 (4) (0) Tabl e 3.1 R a diological En vir onmental P r og ra m Sum ma ry Donald C. Cook Nuc l ea r Plant (Janu a ry -December 2 017) MEDIUM: Sedim e n t (SE) UNITS: pC i/k g dry I ndi c ator St a tions S t a t i on With High est Me a n -----------------------

---M ean Sta tion Mean R a ng e R a ng e N o. Det ected** No. D et e c t ed** 1.0E 2 SL-3 1.2E 2 6.1 -12.8)E 1 1.2 -1.3)E 2 (0/ 4) (0/ 2) 5.8E 3 SL*3 6.3E 3 5.2 -6.6)E 3 6.1 -6.6)E 3 (4/ 4) (2/ 2) -7.7E 1 SL-2 -2.2E 1 -1. 7 -0.4)E 2 -8.0 -3.6)E 1 (0/ 4) (0/ 2) 2.5E 0 SL-3 6.lE 0 -7.3 -7.9)E 0 4.3 -7.9)E 0 (0/ 4) (0/ 2) 6.4E -1 S L-3 2.lE 0 -4.9 -3.3)E 0 1. 7 -2.5)E 0 (0/ 4) (0/ 2) -2.7 E 0 SL-2 2.6E 0 -1.8 -0.5)E 1 4.4 -47.8)E -1 (0/ 4) (0/ 2) -6.9E 0 SL-2 2.5 E 1.8 -0.4)E 1 -3.5 -4.0)E 0 (0/ 4) (0/ 2) 6.9E 0 SL-2 1.0E 1 -6.2 -13.9)E 0 8.2 -11.7)E 0 (0/ 4) (0/ 2) 3.2E 1 SL-2 4.4 E 1 1.3 -5.l)E 1 3.6 -5.l)E 1 (0/ 4) (0/ 2) -8.l E 0 SL-3 -3.2E 0 -2.8 -0.7)E 1 -1. 4 -0.7)E 1 (0/ 4) (0/ 2) 3.9E 0 SL-2 6.0E 0 -3.8 -9.8)E 0 2.2 -9.8)E 0 (0/ 4) (0/ 2) -1. 4E 0 SL-2 l.5E 1 -2.9 -2.8)E 1 1. 7 -28.2)E 0 (0/ 4) (0/ 2) C o ntrol S tati on s M ean R a n ge No. D etec t ed** NO DATA NO DATA N O D ATA NO DATA N O DATA NO DATA NO DATA N O DATA NO DATA NO DATA NO DATA N O D ATA Donal d C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Table 3.1 Radiol o g ica l Environ m ental Progr a m Summa ry Don a ld C. Cook Nucle ar Pl an t (Ja nuary -D ec ember 201 7) MEDIUM: S e d i men t (SE) UNIT S: p C i/k g d ry In dicator Sta t io n s Sta ti on W ith Highest M ean C o n t r ol S tatio n s ------------------

Rad i o nu c li d es M ean St ation Mean M ea n (No. An a l y ses) R e q uired Ra n ge Ra n ge Ra ng e No n-Ro u t i ne* L LD N o. D etected** N o. Detected** N o. D etected** Ru-103 (4) -7.5E -1 S L-3 3.6E -1 NO D ATA (0) -7.8 -7.0)E 0 -6.3 -7.0)E 0 (0/ 4) (0/ 2) Ru-106 (4) 7.2E 1 SL-3 8.3E 1 NO DATA (0) 4.7 -ll.9)E 1 4.7 -ll.9)E 1 (0/ 4) (0/ 2) Ag-108m (4) 6.0E 0 S L-3 6.4E 0 NO DAT A (0) 1.3 -10.2)E 0 4.7 -8.0)E 0 (0/ 4) (0/ 2) Ag-110m (4) 8.2E -1 S L-2 7.lE 0 NO D A T A (0) -1.1 -l.5)E 1 -8.9 -150.0)E -1 (0/ 4) (0/ 2) Sb-1 24 (4) -5.lE 0 S L-2 4.6E 0 NO D ATA (0) -2.5 -0.9)E 1 7.4 -915.0)E -2 (0/ 4) (0/ 2) Sb-1 25 (4) l.3E 1 SL-2 2.2E 1 NO D A T A (0) -2.2 -5.7)E 1 -1. 4 -5.7)E 1 (0/ 4) (0/ 2) 1-131 (4) -3.6 E 0 SL-3 2.4E 1 NO D ATA (0) -5.1 -4.6)E 1 2.8 -45.7)E 0 (0/ 4) (0/ 2) C s-134 (4) 15 0 -7.lE -1 S L-2 4.0E 0 NO D ATA (0) -1. 7 -1. 5)E 1 -6.6 -1 4.7)E 0 (0/ 4) (0/ 2) C s-137 (4) 180 3.7E 0 S L-2 5.2E 0 NO DATA (0) -3.5 -ll.4)E 0 -1.1 -ll.4)E 0 (0/ 4) (0/ 2) Ba-1 4 0 (4) 2.2 E 1 S L-2 3.2E 1 NO D A T A (0) -5.1 -7.4)E 1 4.7 -59.4)E 0 (0/ 4) (0/ 2) L a-140 (4) 6.4E 0 S L-3 l.7E 1 NO DA T A (0) -2.3 -3.0)E 1 3.6 -3 0.l)E 0 (0/ 4) (0/ 2) Ce-141 (4) -3.5E 0 SL-2 7.9E 0 NO D ATA (0) -2.0 -l.O)E 1 5.5 -10.3)E 0 (0/ 4) (0/ 2)

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 R adionuclides (No. Ana l yses) Requ i red N on-Rou t ine* LLD Ce-1 4 4 (4) (0) Ac-2 2 8 (4) (0) Th-2 2 8 (4) (0) Tab l e 3.1 Radiological Environm e n t al Progr a m Sum m ary Donald C. Cook Nucl ea r Plant (Janu a ry -D e cembe r 2017) M E DIUM: Sed i m e n t (S E) UNITS: pCi/kg dry I ndicat o r S tations S tati o n Wi th Hi g h est Mean ----------------------

Mean S t at i on Mean Range Range No. Detected** No. Detected** -2.5E 1 SL-3 -8.BE 0 -4.3 -1.3)E 1 -3.1 -1.3)E 1 (0/ 4) (0/ 2) l.5E 2 SL-2 2.0E 2 8.5 -24.5)E 1 1.5 -2.5)E 2 (1/ 4) (1/ 2) 1. 7E 2 SL-2 1. 9E 2 1.3 -1. 9)E 2 1. 9 -1. 9)E 2 (3/ 4) (1/ 2)

Non-Routine refers to rad i onucl i des e x ceeding the Report i ng Leve l s i n ODCM Attachment 3.21 of the ODCM ** The fraction o f sample ana l ysis yielding d etectable me a surements (i.e., > MDC) is shown in parentheses. *** M ean value is s e t to O.O E O for calculated mean values with e x ponent less than E-06. Co ntrol Stations Mean Range No. Detected** N O D ATA NO DATA NO DATA Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Table 3.1 Radiological Environmental Program Summary Donald C. Cook Nuclear Plant (January -December 2017) MEDIUM: Food Products (TF) UNITS: pCi/kg wet Indicator Stations Station With Highest Mean Control Stations ------------------------

---Radionuc l ides Mean Station Mean Mean (No. Anal y ses) Required Range Range Range Non-Rout i ne* LLD No. Detected** No. Detected** No. Detected** Be-7 (3) 5.lE 1 OFS-G 1.BE 2 1.BE 2 (0) 3.5 -6.B)E 1 (0/ 2) (1/ 1) (1/ 1) K-40 (3) 6.6E 2 OFS-G 2.9E 3 2.9E 3 (0) 3.2 -10.0)E 2 (2/ 2) (1/ 1) (1/ 1) Cr-51 (3) 6.0E 0 OFS-G 2.lE 1 2.lE 1 (0) -6.4 -18.4)E 0 (0/ 2) (0/ 1) (0/ 1) Mn-54 (3) -1. OE 0 ONS-G -1.0E 0 -1. 4E 0 (0) -1. 0 --1.0)E 0 -1.0 --1.0)E 0 (0/ 2) (0/ 2) (0/ 1) Co-57 (3) l.2E 0 ONS-G 1.2E 0 1.lE 0 (0) -4.0 -28.6)E 4.0 -28.6)E -1 (0/ 2) (0/ 2) (0/ 1) Co-58 (3) 3.lE 0 ONS-G 3.lE 0 -2.BE 0 (0) -3.3 -65.5)E 3.3 -65.5)E -1 (0/ 2) (0/ 2) (0/ 1) Fe-59 (3) 2.0E 1 ONS-G 2.0E 1 -7.9E 0 (0) 1.2 -2.B)E 1 1.2 -2.B)E 1 (0/ 2) (0/ 2) (0/ 1) Co-60 (3) 2.BE 0 ONS-G 2.BE 0 -5.5E 0 (0) 2.0 -3.7)E 0 2.0 -3.7)E 0 (0/ 2) (0/ 2) (0/ 1) Zn-65 (3) -6.6E 0 OFS-G 8.9E 0 8.9E 0 (0) -7.5 --5.6)E 0 (0/ 2) (0/ 1) (0/ 1) Se-75 (3) -5.2E 0 OFS-G -2.5E 2.5E -2 (0) -1.0 -O.O)E 1 (0/ 2) (0/ 1) (0/ 1) Nb-95 (3) -7.lE -1 OFS-G 9.lE 0 9.l E 0 (0) -3.3 -1.9)E 0 (0/ 2) (0/ 1) (0/ 1) Zr-95 (3) l.BE 1 ONS-G l.BE 1 -7.5E 0 (0) -3.2 -38.7)E 0 -3.2 -38.7)E 0 (0/ 2) (0/ 2) (0/ 1)

Donald C. Cook Nuclear Pl a n t Annual Radiological Environmental Op e rating R e port 20 1 7 T a ble 3.1 R a diolo gi cal Env iro nmental P rog ram Summ ary Donal d C. Cook Nu c l ea r Plan t (January -De c emb e r 2017) MEDIUM: Food Product s (TF) UNITS: pC i/k g we t I nd i cator Stations S tation W i th H ighest Mea n Control Stat i o n s ------------*----------------------------------------------------------------------------------Radionuclides Mean Station Mean Mean (N o. Analyses)

Requ i red Range Range Range N on-Routine* LLD No. Detected** No. D etected** N o. Detected** Ru-10 3 (3) -4.7E 0 OFS-G 8.S E -2 8.SE -2 (0) -8.3 --l.2)E 0 (0/ 2) (0/ 1) (0/ 1) Ru-106 (3) 1.SE 1 ONS-G l.SE 1 8.7E 0 (0) -7.5 -42.6)E 0 -7.5 -42.6)E 0 (0/ 2) (0/ 2) (0/ 1) Ag-108 m (3) 1.8E 0 OFS-G 4.9E 0 4.9E 0 (0) 1.4 -2.3)E 0 (0/ 2) (0/ 1) (0/ 1) Ag-110 m (3) -2.9E -1 ONS-G -2.9E 1. SE 0 (0) -4.1 -3.5)E 0 -4.1 -3.5)E 0 (0/ 2) (0/ 2) (0/ 1) Sb-124 (3) -1. 2E 0 O FS-G l.6E 1 1. 6E 1 (0) -7.0 -4.6)E 0 (0/ 2) (0/ 1) (0/ 1) Sb-1 2 5 (3) 1.8E 0 ONS-G l.SE 0 -3.6E 0 (0) -8.0 -44.9)E 8.0 -44.9)E -1 (0/ 2) (0/ 2) (0/ 1) 1-131 (3) 60 5.7E 0 ONS-G 5.7E 0 -8.lE 0 (0) 1.8 -112.0)E -1 1.8 -112.0)E -1 (0/ 2) (0/ 2) (0/ 1) C s-1 3 4 (3) 60 7.9E -1 ONS-G 7.9E 1.lE 1 (0) -8.5 -24.3)E 8.5 -24.3)E -1 (0/ 2) (0/ 2) (0/ 1) C s-1 3 7 (3) 60 -2.3E 0 OFS-G 2.6E 0 2.6E 0 (0) -6.3 -1. 6) E 0 (0/ 2) (0/ 1) (0/ 1) Ba-1 4 0 (3) -9.6E 0 OFS-G -8.6E 0 -8.6E 0 (0) -1. 7 --0.3)E 1 (0/ 2) (0/ 1) (0/ 1) L a-14 0 (3) -1. 9E 0 OFS-G 3.lE 0 3.lE 0 (0) -8.7 -5.0)E 0 (0/ 2) (0/ 1) (0/ 1) Ce-14 1 (3) -1. lE 1 OFS-G -6.6 E 0 -6.6E 0 (0) -2.0 --0.2)E 1 (0/ 2) (0/ 1) (0/ 1)

Donald C. Cook Nuclear Plan t Annual Radiological Environmental Operating Report 2017 Rad i on u c l ides (No. An a l y ses) R equire d N on-R o ut i n e* L L D C e-144 (3) (0) A c-2 28 (3) (0) Th-228 (3) (0) Table 3.1 Rad i olog ic al Env i ronmen t al Prog ra m Summa ry D o n a ld C. Cook Nucl e ar Plant (J a nuary -D e c e mb e r 20 17) M EDIUM: Food P r oduc ts (TF) UN I T S: pC i/k g we t Indi cator S ta ti on s S tat ion W ith H ig h e st M ean ------------------------------------------------------------------------M ean Stat i on M ean Ra nge R ange No. D etecte d** N o. D ete c ted** -l.3E 1 O NS-G -l.3E 1 -1.5 --1.2)E 1 -1.5 --1. 2) E 1 (0/ 2) (0/ 2) -1. 7E 1 O NS-G -1. 7E 1 -2.0 --1. 3)E 1 -2.0 --1.3)E 1 (0/ 2) (0/ 2) -8.3E 0 O FS-G -7.6E 0 -1. 6 -O.O)E 1 (0/ 2) (0/ 1)

No n-R o u tine refers t o r adionuc li des ex c eedi ng t h e Report i ng L evels in OD C M A t tac h me nt 3.21 o f t h e OD CM ** T he fr a c tion of s a mpl e a na l ys i s yi elding d et e c t ab l e meas ur e m ents (i.e., > MD C) is s hown i n pare n t h eses. *** M ea n v alue is se t to O.OE O for ca l cu l ated mea n values w i t h e x pone n t l ess than E-0 6. -3 7-Con t r ol S tati on s M ea n R a ng e N o. D et e cted** -2.6E 1 (0/ 1) -3.2E 1 (0/ 1) -7.6E 0 (0/ 1)

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Table 3.1 Radiological Environmental Program Summary Donald C. Cook Nuclear Plant (January -December 2017) MEDIUM: Vegetation (TV) UNITS: pCi/kg wet Ind icat or Stations Stat ion With H ig hest Mean Control Stations ------------------------

---------Radionuclide s Mean Station Mean Mean (No. Ana lyses) Required Range Range Range Non-Routine* LLD No. Detected** No. Detected** No. Detected** Be-7 (28) 2.0E 3 ONS2-V 3.0E 3 l.9E 3 (0) 2.9 -46.8)E 2 1. 6 -4.7)E 3 7.4 -30.5)E 2 (24/ 24) (6/ 6) (4/ 4) K-40 (28) 3.6E 3 ONS5-V 5.6E 3 2.6E 3 (0) 1.2 -8.4)E 3 1. 9 -8.4)E 3 1.9 -3.6)E 3 (24/ 24) (3/ 3) (4/ 4) Cr-5 1 (28) -7.6E 0 OFS1-V 3.3E 1 2.2E 1 (0) -1.4 -1. O)E 2 -9.8 -112.0)E 0 -1.1 -11.2)E 1 (0/ 24) (0/ 3) (0/ 4) Mn-54 (28) 2.0E -1 ONSS-V 8.2E 0 -5.3E -1 (0) -2.8 -2.l)E 1 1.8 -20.5)E 0 -6.4 -5.6)E 0 (0/ 24) (0/ 3) (0/ 4) Co-57 (28) l.OE 0 OFS2-V 2.2E 0 -2.2E -1 (0) -9.2 -9.3)E 0 -6.3 -5.5)E 0 (0/ 24) (0/ 1) (0/ 4) Co-58 (28) 1.4E 0 ONS2-V 5.9E 0 -7.3E 0 (0) -1.4 -3.3)E 1 -9.7 -27.9)E 0 -1.5 -O.O)E 1 (0/ 24) (0/ 6) (0/ 4) Fe-59 (28) 6.3E -1 OFS1-V l.9E 1 l.5E 1 (0) -2.2 -3.2)E 1 7.8 -398.0)E -1 7.8 -398.0)E -1 (0/ 24) (0/ 3) (0/ 4) Co-60 (28) 7.0E -1 ONS3-V 5.7E 0 -1. lE 1 (0) -1.8 -2.3)E 1 -1. 6 -14.7)E 0 -2.1 --0.l)E 1 (0/ 24) (0/ 6) (0/ 4) Zn-65 (28) 4.lE 0 ONS5-V 7.4E 0 -1. 6E 0 (0) -2.6 -3.9)E 1 2.0 -14.2)E 0 -7.7 -3.9)E 0 (0/ 24) (0/ 3) (0/ 4) Se-75 (28) 1.3E 0 ONS4-V 2.8E 0 -2.4E 0 (0) -1.3 -2.4)E 1 -1.3 -2.4)E 1 -1.1 -1.0)E 1 (0/ 24) (0/ 9) (0/ 4) Nb-95 (28) 3.0E 0 ONS4-V 6.8E 0 l.4E 0 (0) -2.3 -4.3)E 1 -9.8 -43.4)E 0 -6.3 -16.4)E 0 (0/ 24) (0/ 9) (0/ 4) Zr-95 (28) 2.4E 0 OFS2-V 8.4E 0 -6.5E -1 (0) -3.7 -5.7)E 1 -1.9 -0.8)E 1 (0/ 24) (0/ 1) (0/ 4)

Donal d C. Cook Nucle a r Plant Annual Radiological Environmental Operating Report 2017 Ta ble 3.1 Rad i olog ica l Environ me ntal Program Summ ary Do n a ld C. Coo k Nuclear Plant (January -D e c e mber 20 1 7) ME DIUM: V e getation (TV) UNITS: p C i/kg w et Ind icator Stati o ns Station W ith H ig h est M ean Cont rol Stations ----------------------------------------------------------------------------------------------Radio nu cl i des M ea n Sta tion M ean Mean (No. An al y ses) Required R ange R ange Ra n ge N o n-R ou t i ne* LLD No. D etected** N o. D etecte d** N o. D etected** Ru-10 3 (28) -5.7 E -1 O FS1-V 3.8E 0 2.3E 0 (0) -2.7 -l.8)E 1 3.7 -5 7-l)E 2.0 -5.7)E 0 (0/ 24) (0/ 3) (0/ 4) Ru-106 (28) l.4E 1 ONS 4-V 7.0E 1 -1. 7E 1 (0) -1.6 -2.2)E 2 -2.6 3)E 1 -1.1 -0.6)E 2 (0/ 24) (0/ 9) (0/ 4) Ag-1 08m (28) 4.5E -1 O NS5-V 4_7E 0 1.lE 0 (0) -1.0 -l. l)E 1 -1. 9 -10.9)E 0 -5.9 -4.6)E 0 (0/ 24) (0/ 3) (0/ 4) Ag-1 10m (2 8) -8.8E -1 O FS2-V 5_5E 0 3.5E 0 (0) -3.6 -2.5)E 1 6.4 -8140.0)E -3 (0/ 24) (0/ 1) (0/ 4) Sb-12 4 (28) -9.4E 0 O FS 1-V 1.4E 1 9_2E 0 (0) -1. 0 -O.l)E 2 -1. 7 -23.7)E 0 -5.2 -23.7)E 0 (0/ 24) (0/ 3) (0/ 4) S b-125 (2 8) 3.0E 0 O NS3-V 8.5E 0 lE 0 (0) -4.3 -8_8)E 1 -7.0 -35.3)E 0 -2.0 -0.6)E 1 (0/ 24) (0/ 6) (0/ 4) 1-13 1 (28) 60 7.3E -1 OF S1-V 1.0E 1 6_6E 0 (0) -2.1 -3.3)E 1 -9.6 -2 0.5)E 0 6 -20.5)E 0 (0/ 24) (0/ 3) (0/ 4) C s-134 (28) 60 2.5E 0 O N S2-V 4_3E 0 -3.2E 0 (0) -1.1 -2.7)E 1 -1.1 -2.7)E 1 -1.5 -0.9)E 1 (0/ 24) (0/ 6) (0/ 4) Cs-13 7 (28) 60 1. 6E 1 O NS3-V 2.8E 1 1.lE 1 (0) -8.6 -103.0)E 0 -8.6 -1 0 3-0)E 0 -1.3 -40.l)E 0 (3/ 24) (2/ 6) (0/ 4) Ba-140 (2 8) 2.3E 0 O FS2-V l.6E 1 l.2E 1 (0) -1.1 -l.O)E 2 -2.6 -3.0)E 1 (0/ 24) (0/ 1) (0/ 4) L a-1 40 (28) l.7E 0 O FS1-V 3.6E 0 4.2E -1 (0) -1. 5 -2.0)E 1 -6.5 -1 8.6)E 0 -9.1 -18.6)E 0 (0/ 24) (0/ 3) (0/ 4) Ce-1 4 1 (28) -3.6E 0 O NS5-V 8.7E 0 -1. 9E 1 (0) -3_7 -2.3)E 1 -7.2 -232.0)E 4.2 --0_6)E 1 (0/ 24) (0/ 3) (0/ 4)

Donald C. Cook Nuclear P l ant Annual Radiological Envi r onmental Operating Report 20 17 Rad i onucl i des (N o. Analyses)

Required N on-Routine

LL D Ce-144 (28) (0) A c-2 2 8 (28) (0) Th-2 28 (2 8) (0) Tabl e 3.1 R a diological En vi ronmental Program Su mma ry Dona ld C. Cook Nu c l e a r Plant (January -Decemb er 2017) M E DIUM: Vegetation (TV) UNITS: pCi/k g wet I ndicator Stations Station With H i gh est Mean -----------------

-----------------------------------------------------

Mean Station Mean Range Range No. Detected** No. D etected** 4.5E 0 O NSS-V 3.5E 1 -1.2 -1.4)E 2 1.5 -4.9)E 1 (0/ 24) (0/ 3) l.lE 1 ONS3-V 5.7E 1 -6.8 -10.7)E 1 1.2 -10.7)E 1 (0/ 24) (0/ 6) 1. 6E 1 OFS1-V 2.7E 1 -2.6 -6.0)E 1 -1.5 -7.0)E 1 (0/ 24) (0/ 3)

N on-Routine re f ers to radi o nuc l ides exceeding the Reporting Leve l s in O DCM A ttac h ment 3.2 1 of the ODC M ** The fraction of s a mple anal y sis yielding d etectable measuremen t s (i.e., > MDC) i s s hown in p arentheses. *** M ean value is set to O.O E O for calculate d mean value s with exponent l ess than E-0 6. Control Stat io ns Mean Range N o. Detected**

-1. 4E 1 -9.9 -4.4)E 1 (0/ 4) 2.lE 0 -1.1 -1.l)E 2 (0/ 4) l.7E 1 -1.5 -7 .O)E 1 (0/ 4)

Donal d C. Cook Nu clea r Plant Annual Radiological Env i ron m ental Operating Report 2017 Table 3.1 Radiologi c al Environm e ntal Progr am Summ a ry Donald C. Coo k Nuclear P la n t (J a nuary -D ec emb er 2017) MEDIUM: Dr in k i ng Wa t er {WD) UNI T S: pC i/liter In dicator S tatio n s S t ation W i t h Hi g he st M ean C on t rol S tations ---------------

Rad ionu c l ides M ean S tation M ean M ean (N o. An a l y ses) Required R ange R ange Range No n-R o utin e* LLD No. D e t ecte d** No. Detec t ed** N o. D etected** B E TA (5 2) 4 1.4E 0 LTW 1.4E 0 1.3E 0 (0) -1.6 -3.2)E 0 -1. 6 -3.2)E 0 -7.5 -32.S)E -1 (0/ 26) (0/ 26) (0/ 26) H-3 (8) 2000 -1.4E 2 LTW -l.4E 2 -1.5E 2 (0) -4.9 -2.3)E 2 -4.9 -2.3)E 2 -6.3 -1. 6)E 2 (0/ 4) (0/ 4) (0/ 4) Be-7 (52) 3.5E 0 LTW 3.5E 0 -2.0 E -2 (0) -1. 3 -3.6)E 1 -1. 3 -3.6)E 1 -2.2 -2.4)E 1 (0/ 26) (0/ 26) (0/ 26) K-40 (5 2) -6.6E 0 S T J -7.0E 7.0 E -1 (0) -3.4 -1 0.5)E 1 -4.4 -6.1)E 1 -4.4 -6.1)E 1 (0/ 26) (0/ 26) (0/ 26) C r-51 (52) 1. 9E 0 L TW 1. 9E 0 -1. 6E 0 (0) -2.1 -1. 7)E 1 -2.1 -1. 7)E 1 -1.1 -1.1)E 1 (0/ 26) (0/ 26) (0/ 26) M n-5 4 (5 2) 15 -3.0 E -1 STJ -3.4E 3.4E -2 (0) -1. 6 -1. 6)E 0 -1.5 -2.0)E 0 -1.5 -2.0)E 0 (0/ 26) (0/ 26) (0/ 2 6) Co-57 (5 2) 5.S E -2 LTW 5.SE 1. 6E -1 (0) -1. 2 -2.3)E 0 -1. 2 -2.3)E 0 -2.7 -2.6)E 0 (0/ 26) (0/ 26) (0/ 26) Co-58 (52) 15 -7.0 E -2 S T J 1.SE -2 1.SE -2 (0) -2.0 -3.4)E 0 -2.3 -3.6)E 0 -2.3 -3.6)E 0 (0/ 26) (0/ 26) (0/ 26) Fe-59 (5 2) 3 0 2.3 E -1 STJ 1.0 E 0 1.0E 0 (0) -4.2 -4.S)E 0 -2.7 -5. 6)E 0 -2.7 -5.6)E 0 (0/ 26) (0/ 26) (0/ 26) Co-60 (5 2) 1 5 8.0E -2 L TW 8.0E 8.3 E -2 (0) -2.9 -1.S)E 0 -2.9 -1.S)E 0 -1.5 -2.3)E 0 (0/ 26) (0/ 26) (0/ 26) Zn-65 (5 2) 3 0 -3.9E -1 S T J 3.5E -1 3.5E -1 (0) -1.1 -0.5)E 1 -3.8 -8.9)E 0 -3.8 -8.9)E 0 (0/ 26) (0/ 26) (0/ 26) S e-75 (5 2) 2.4E -1 LTW 2.4E 1. 7E -3 (0) -2.1 -4.5)E 0 -2.1 -4.5)E 0 -1.9 -2.9)E 0 (0/ 26) (0/ 26) (0/ 2 6) -4 1-Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Radionuclides (No. Analyses)

Non-Routine

Nb-95 Zr-95 (52) (0) (52) (0) Ru-103 (52) (0) Ru-106 (52) (0) Ag-108m (52) (0) Ag-110m (52) (0) Sb-124 Sb-125 1-131 Cs-134 Cs-137 Ba-140 (52) (0) (52) (0) (52) (0) (52) (0) (52) (0) (52) (0) Table 3.1 Radiological Environmental Program Summary Donald C. Cook Nuclear Plant (January -December 2017) MEDIUM: Drinking Water (WDl UNITS: pCi/liter Indicator Stations Mean Station Station With Highest Mean Mean Required Range Range LLD No. Detected** 15 30 1 15 18 60 -1. BE 2.1 -3.3)E 0 (0/ 26) 1. 3E 5.7 -3.0)E 0 (0/ 26) -8.lE 2.7 -l.l)E 0 (0/ 26) 3.4E 0 -9.5 -19.3)E 0 (0/ 26) -1. 2E 2.0 -l.4)E 0 (0/ 26) 3.9E 2.4 -3.0)E 0 (0/ 26) -3.7E 4.9 -4.l)E 0 (0/ 26) 1. BE 4.1 -7.B)E 0 (0/ 26) 5.2E 7.2 -6.6)E -1 (0/ 26) 2.5E 1.8 -3.2)E 0 (0/ 26) -2.0E 2.9 -3.0)E 0 (0/ 26) -1.lE 0 -1.3 -0.9)E 1 (0/ 26) STJ STJ STJ LTW STJ LTW STJ STJ LTW STJ STJ STJ No. Detected** 7.lE 4.7 -8.0)E 0 (0/ 26) 3.BE 3.0 -6.B)E 0 (0/ 26) -4.6E 4.0 -l.B)E 0 (0/ 26) 3.4E 0 -9.5 -19.3)E 0 (0/ 26) 1. 2E 1.2 -2.0)E 0 (0/ 26) 3.9E 2.4 -3.0)E 0 (0/ 26) -4.2E 3.5 -4.7)E 0 (0/ 26) l.OE 0 -3.4 -6.7)E 0 (0/ 26) 5.2E 7.2 -6.6)E -1 (0/ 26) 6.0E 1.7 -5.5)E 0 (0/ 26) 3.3E 2.5 -2.2)E 0 (0/ 26) l.OE 0 -1.3 -l.l)E 1 (0/ 26) Control Stations Mean Range No. Detected** 7.lE 4.7 -8.0)E 0 (0/ 26) 3.BE 3.0 -6.B)E 0 (0/ 26) -4.6E 4.0 -l.B)E 0 (0/ 26) -2.4E 0 -1. 9 -1. 6) E 1 (0/ 26) 1. 2E 1.2 -2.0)E 0 (0/ 26) -l.2E 2.9 -2.l)E 0 (0/ 26) -4.2E 3.5 -4.7)E 0 (0/ 26) 1.0E 0 -3.4 -6.7)E 0 (0/ 26) 1. 6E 4.2 -7.B)E -1 (0/ 26) 6.0E 1.7 -5.5)E 0 (0/ 26) 3.3E 2.5 -2.2)E 0 (0/ 26) 1.0E 0 -1.3 -l.l)E 1 (0/ 26)

Donald C. Cook Nuclear Plant Annual Radiological E nvironmental Operating Report 2017 Radio nu c l ides (N o. Anal y ses) R equired No n-R o ut i n e* LL D La-140 (52) 15 (0) C e-1 41 (5 2) (0) C e-144 (52) (0) A c-2 2 8 (52) (0) Th-228 (52) (0) Ta b l e 3.1 Radio l og ical E nv i ron m ent a l Progr a m Summ ary Donald C. Coo k Nu c lear P l an t (J a nuary . D ece mber 2017) MEDIUM: Dr i nking Wa t e r (WDl U NIT S: pCi/lit er I n dica tor S tati on s Sta ti on W ith Hig h est Mean ------------------------

M ean Station Mean Ra n g e R ange N o. D etecte d** N o. D etected** -6.0E -1 ST J -1.BE 4.5 -3.7)E 0 -5.0 -2.9)E 0 (0/ 26) (0/ 26) -3.0E -1 L TW -3.0E 4.5 -8.6)E 0 -4.5 -8.6)E 0 (0/ 26) (0/ 26) 5.lE -1 LTW 5.lE 1.3 -1.B)E 1 -1. 3 -l.B)E 1 (0/ 26) (0/ 26) -8.9E -1 S TJ 7.5E 1.1 -0.9)E 1 -8.6 -2 1.4)E 0 (0/ 26) (0/ 26) 2.lE 0 LTW 2.lE 0 -4.4 -12.6)E 0 -4.4 -1 2.6)E 0 (0/ 26) (0/ 26)

No n-R o u t i ne refe r s t o r adionucl i des e x ceedi ng t h e Reporti n g L evels in O DC M Attac hm e nt 3.21 o f th e O DCM ** The fr a c t i on o f sam pl e analys is yi e l d i ng d e t ec t ab l e measu r e m e n ts (i.e., > MD C) is s hown i n parent h eses. *** Mean v a l ue is se t to O.OE O f or c a lcul ated me a n va l ues with e x p onent l ess than E-0 6. Con t rol Stat i o n s M ea n R a ng e N o. D etected** -1. BE 5.0 -2.9)E 0 (0/ 26) -1. 2E 0 -7.0 -7.9)E 0 (0/ 26) -1. lE 0 -8.3 -24.l)E 0 (0/ 26) 7.5E 8.6 -2 1.4)E 0 (0/ 26) 7.2E 7.1 -1 0.B)E 0 (1/ 26)

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Table 3.1 Radiological Environmental Program Summary Donald C. Cook Nuclear Plant (January -December 2017) MEDIUM: Ground Water (WG) UNITS: pCi/liter Ind i cator Stations Station With Highest Mean Control Stations ------------------------

*-----*--------Rad ion ucl i des Mean Stat i on Mean Mean (No. Analyses)

Required Range Range Range Non-Routine

LLD No. Detected** No. Detected** No. Detected** H-3 (69) 2000 3.3E 2 W-5 9.6E 2 NO DATA (0) -8.1 -14.0)E 2 5.1 -12.9)E 2 (0/ 69) (0/ 4) Be-7 (69) 7.9E -1 W-12 1.3E 1 NO DATA (0) -2.1 -2.9)E 1 4.3 -25.4)E 0 (0/ 69) (0/ 4) K-40 (69) 1. 6E -1 W-2 3.lE 1 NO DATA (0) -5.0 -6.5)E 1 -1. 9 -6.l)E 1 (2/ 69) (1/ 4) Cr-51 (69) 8.7E -1 W-13 l.5E 1 NO DATA (0) -2.5 -4.3)E 1 -5.7 -43.2)E 0 (0/ 69) (0/ 4) Mn-54 (69) 15 1. 9E -1 W-9 l.lE 0 NO DATA (0) -2.2 -3.3)E 0 -3.5 -23.8)E -1 (0/ 69) (0/ 4) Co-57 (69) 2.5E -1 MW-20 1.lE 0 NO DATA (0) -1.8 -3.0)E 0 -2.6 -23.4)E -1 (0/ 69) (0/ 4) Co-58 (69) 15 -5.5E -2 MW-20 l.OE 0 NO DATA (0) -2.8 -3.6)E 0 -4.9 -25.2)E -1 (0/ 69) (0/ 4) Fe-59 (69) 30 -4.lE -1 W-14 l.3E 0 NO DATA (0) -4.2 -8.l)E 0 -3.4 -6.6)E 0 (0/ 69) (0/ 4) Co-60 (69) 15 1. 7E -1 W-12 1. 6E 0 NO DATA (0) -3.8 -3.l)E 0 9.8 -253.0)E -2 (0/ 69) (0/ 4) Zn-65 (69) 30 -2.4E -1 W-4 l.2E 0 NO DATA (0) -5.1 -4.9)E 0 -1. 4 -28.4)E -1 (0/ 69) (0/ 4) Se-75 (69) 3.5E -1 W-15 3.lE 0 NO DATA (0) -1. 9 -8.4)E 0 -1.1 -8.4)E 0 (0/ 69) (0/ 4) Nb-95 (69) 15 8.0E -2 W-9 l.OE 0 NO DATA (0) -2.9 -5.4)E 0 -1.6 -5.4)E 0 (0/ 69) (0/ 4)

Donal d C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Table 3.1 Radiologi ca l Environ m ent al Progr a m Summ ary Dona ld C. Cook Nuclear P la n t (January -December 20 17) MEDIUM: Gro u nd Wat e r {WG} UN IT S: pC i/l i t e r In d i ca t or S tat ion s Stati o n W ith H i gh est M e a n C on tr o l St atio n s --------------------------------------------------------------------

Radionucl i d es M ean St ation Mean M ean (No. A na l yses) R e q uired R a nge Range Ra n ge N o n-Ro u tine* L LD N o. Detecte d** No. D etecte d** No. D e t ected** Z r-95 (69) 30 2.3E -1 W-7 2.3E 0 N O DATA (0) -2.8 -6.4)E 0 -2.2 -6.4)E 0 (0/ 69) (0/ 4) Ru-1 03 (6 9) -5.2E -1 W-12 4.4E -1 NO D ATA (0) -3.8 -3.2)E 0 -9.7 -3 1.B)E -1 (0/ 69) (0/ 4) R u-1 06 (6 9) l.lE 0 W-1 2 9.BE 0 NO D A T A (0) -1. 8 -4.2)E 1 3.1 -2 8 40 0.0)E -3 (0/ 69) (0/ 4) A g-108m (6 9) 2.6E -2 MW-21 9.4E -1 NO DATA (0) -2.0 -l.B)E 0 -4.1 -18.2)E -1 (0/ 69) (0/ 4) Ag-1 10m (6 9) 1. 3E -1 W-8 l.4E 0 NO DATA (0) -3.2 -4.6)E 0 -2.6 -28.6)E -1 (0/ 69) (0/ 4) S b-124 (69) -1. B E -1 W-12 l.6E 0 N O DATA (0) -6.7 -4.5)E 0 -3.4 -4 2.3)E -1 (0/ 69) (0/ 4) Sb-1 25 (69) 4.2E -1 W-1 2.lE 0 NO DATA (0) -7.0 -5.B)E 0 -1.3 -4.9)E 0 (0/ 69) (0/ 4) 1-1 3 1 (69) 1 3.6E -1 W-14 4.lE 0 NO D A T A (0) -6.0 -10.l)E 0 -1. 9 -101. 0) E -1 (0/ 69) (0/ 4) C s-13 4 (6 9) 15 2.6E -1 W-8 l.lE 0 N O DATA (0) -2.4 -6.0)E 0 -2.2 -4.4)E 0 (0/ 69) (0/ 4) Cs-1 3 7 (69) 18 -6.0E -2 W-1 2 8.lE -1 NO DATA (0) -3.1 -3.B)E 0 -6.4 -26.3)E -1 (0/ 69) (0/ 4) B a-140 (6 9) 60 2.0 E 0 W-1 4 l.4E 1 N O DAT A (0) -1. 6 -3.6)E 1 6.4 -35.B)E 0 (0/ 69) (0/ 4) L a-1 40 (69) 15 -7.6E -1 W-1 l.2E 0 NO DATA (0) -9.1 -5.9)E 0 -3.4 -5.9)E 0 (0/ 69) (0/ 4)

Donald C. Cook Nuclear Pl a n t Annua l Radiological Environmental Operating Report 20 17 Radionucl i des (N o. Analyses)

Required Non-Rout i ne* L L D C e-14 1 (69) (0) C e-14 4 (69) (0) Ac-2 2 8 (69) (0) Th-228 (69) (0) Ta bl e 3.1 R a d i o l ogical E nv i ronmen t al Pr og ram Summary Dona ld C. Cook Nucle a r Plant (Janu a ry -December 2 017) MEDIUM: Ground Wat e r (WG) UNITS: pC i/liter I ndicator St at i ons S t ation With H ighest Mea n --------------------

Mean Station Mean Range Range No. Detected** No. Detected** -9.3E -1 W-8 2.7E 0 -7.0 -5_8)E 0 -2.3 -5_7)E 0 (0/ 69) (0/ 4) 1.lE 0 W-7 5.9E 0 -1. 8 -2.5)E 1 -2.8 -17.0)E 0 (0/ 69) (0/ 4) 7.9E -1 MW-20 6.6E 0 -1.3 -2.3)E 1 -5.9 -22.9)E 0 (0/ 69) (0/ 4) 2.4E 0 W-10 7.3E 0 -5.2 -16.6)E 0 5.2 -9.3)E 0 (0/ 69) (0/ 4)

N o n-Rout in e r e fer s to r ad ionu cl ides excee d i n g the Re po rti n g Le v e ls i n OD CM Att ac h ment 3.21 o f t he OD CM ** Th e fract ion o f sample ana ly sis yield in g d etecta bl e measuremen t s (i.e., > MDC) is s h own in p are n theses. *** M ean va lu e is s et to O.O E O f or cal c u l ated mean v alue s with exp o nent l ess than E-06. Control S t a ti o ns Mean Range No. Detected** NO DATA NO DATA NO DATA NO DATA Donal d C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Table 3.1 Radiological Environmental Program Summary Donald C. Cook Nuclear Plant (January -December 2017) MEDIUM: Surface Water (WS) UNITS: pCi/liter Indicator Stations Station With Highest Mean Control Stations ------------------------

Radionucl i des Mean Station Mean Mean (No. Analyses)

Required Range Range Range Non-Routine*

LLD No. Detected** No. Detected**

No. Detec ted** H-3 (8) 2000 l.7E 2 SWL-2 2.3E 2 NO DATA (0) -2.4 -8.0)E 2 -2.4 -6.4)E 2 (0/ 8) (0/ 4) Be-7 (24) 8.8E -1 SWL-3 2.lE 0 NO DATA (0) -8.0 -13.6)E 0 -3.9 -10.3)E 0 (0/ 24) (0/ 12) K-40 (24) 3.5E 0 SWL-2 4.8E 0 NO DATA (0) -3.2 -5.0)E 1 -2.6 -5.0)E 1 (0/ 24) (0/ 12) Cr-51 (24) -5.2E -1 SWL-3 -2.lE -1 NO DATA (0) -1. 6 -1. 9)E 1 -1. 4 -l.9)E 1 (0/ 24) (0/ 12) Mn-54 (24) 15 3.5E -1 SWL-2 4.0E -1 NO DATA (0) -6.1 -17.3)E 6.1 -17.3)E -1 (0/ 24) (0/ 12) Co-57 (24) 1. OE -1 SWL-2 2.0E -1 NO DATA (0) -1. 2 -2.3)E 0 -1.2 -2.3)E 0 (0/ 24) (0/ 12) Co-58 (24) 15 -2.lE -1 SWL-3 -1. 9E -1 NO DATA (0) -2.0 -2.6)E 0 -2.0 -2.6)E 0 (0/ 24) (0/ 12) Fe-59 (24) 30 -9.2E -2 SWL-3 1. 6E -1 NO DATA (0) -2.9 -4.0)E 0 -2.9 -4.0)E 0 (0/ 24) (0/ 12) Co-60 (24) 15 l. lE -1 SWL-2 2.0E -1 NO DATA (0) -7.9 -11.0)E 7. 9 -11. 0) E -1 (0/ 24) (0/ 12) Zn-65 (24) 30 2.8E -1 SWL-2 7.3E -1 NO DATA (0) -3.0 -6.3)E 0 -3.0 -6.3)E 0 (0/ 24) (0/ 12) Se-75 (24) 1. 3E -1 SWL-3 2.3E -1 NO DATA (0) -8.6 -14.3)E 5.8 -14.3)E -1 (0/ 24) (0/ 12) Nb-95 (24) 15 5.6E -2 SWL-2 3.5E -1 NO DATA (0) -2.2 -3.7)E 0 -1. 7 -3.7)E 0 (0/ 24) (0/ 12)

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 20 1 7 T a bl e 3.1 Rad i olog ic al Environm e ntal P r ogram Sum m a ry Donald C. C ook Nu c l e a r Plant (January -De c emb e r 2017) MEDIUM: Surface Wa te r (WSl UNITS: pC i/li t er I ndicator S tations Stat i on With H i ghest Mean Cont r ol St ati o ns ----------------------------------

----------*--------------------------

Radionuc li des M e an Station Mean Mean (N o. A nalyses) Require d Range Range Rang e N on-Rout i ne* LL D No. Detected** No. D etected** No. Detected** Zr-95 (24) 30 -5.6E -2 SWL-2 3.7 E -1 NO DA T A (0) -4.6 -3.0)E 0 -4.6 -2.8)E 0 (0/ 2 4) (0/ 12) Ru-10 3 (2 4) 5.3E -2 SWL-2 5.7 E -1 NO DATA (0) -2.9 -8.l)E 0 -2.9 -8.l)E 0 (0/ 24) (0/ 12) Ru-1 0 6 (24) -1. lE 0 SWL-2 -9.2E -1 NO DATA (0) -1.0 -0.6)E 1 -4.3 -5.8)E 0 (0/ 24) (0/ 1 2) Ag-1 0 8m (24) 2.lE -1 SWL-2 2.6E -1 NO DA T A (0) -7.7 -17.6)E 4.8 -17.6)E -1 (0/ 24) (0/ 12) Ag-1 10m (24) 2.7 E -1 S WL-2 3.4E -1 NO DA T A (0) -2.4 -4.8)E 0 -1.3 -2.0)E 0 (0/ 24) (0/ 12) Sb-124 (24) -5.6E -2 SWL-2 5.5E -2 NO DATA (0) -5.5 -4.3)E 0 -3.2 -4.3)E 0 (0/ 24) (0/ 12) Sb-12 5 (24) 7.4 E -1 SWL-2 1.0E 0 NO DATA (0) -3.5 -7.4)E 0 -1.3 -7.4)E 0 (0/ 24) (0/ 12) 1-131 (24) 1 5.2E 0 SWL-2 6.0E 0 NO DA T A (0) -6.1 -53.S)E 0 -6.1 -53.8)E 0 (0/ 2 4) (0/ 12) C s-1 34 (24) 15 -1. 3E -1 SWL-2 2.6E -1 NO DATA (0) -2.3 -5.7)E 0 -2.1 -5.7)E 0 (0/ 24) (0/ 12) C s-137 (2 4) 18 -2.lE -1 SWL-2 -9.lE -2 NO DATA (0) -1.9 -1.0)E 0 -1. 9 -0.7)E 0 (0/ 2 4) (0/ 12) B a-14 0 (24) 60 2.9E 0 SWL-3 4.8E 0 NO DATA (0) -2.3 -2.3)E 1 -1.1 -2.3)E 1 (0/ 24) (0/ 12) La-140 (24) 15 -1. lE 0 SWL-3 -9.3 E -2 NO DATA (0) -9.0 -6.2)E 0 -4.8 -6.2)E 0 (0/ 24) (0/ 12)

Donal d C. Cook Nu c lear Plant Annual Radiological Environmental Operating Report 2017 Rad i o nu c l i des (N o. An a l yses) R equ i red N o n-Rou ti n e* LLD Ce-141 (2 4) (0) Ce-144 (2 4) (0) A c-228 (24) (0) Th-2 28 (2 4) (0) T a bl e 3.1 Radiolo gi cal Environm e ntal P r ogra m Summ a ry Donald C. Cook Nucle a r Plant (J anuary -De c ember 20 17) M E DIUM: S urf ace Wat er (W S l UNITS: pC i/liter Ind icator S ta t i o ns S t a t i o n W i th Highest Mean ------------

M ea n S tat i on M ean R a n ge R a n ge N o. De tected** N o. Detected** -6.lE -1 S WL-2 -2.8E 7.0 -4.9)E 0 -5.1 -3.l)E 0 (0/ 24) (0/ 12) -7.8E -3 SW L-3 6.5E 8.3 -8.l)E 0 -8.3 -8.l)E 0 (0/ 24) (0/ 12) 6.4E -1 S W L-2 1.8E 0 -9 .. 8 -1 5.S)E 0 -6.0 -15.S)E 0 (0/ 24) (0/ 12) 1. 7E 0 SW L-2 2.3E 0 -3.0 -9.5)E 0 -3.0 -9.5)E 0 (1/ 24) (1/ 12)

N o n-Ro ut i ne refers to r a d ionuc lid es excee d i n g t he Report ing Levels in O D C M Attachme nt 3.21 of the ODC M ** The frac t i on of sa mple a n alysis y i e l di n g det e ct a b l e meas ur e m e n ts (i.e., > MDC) is s h own in parent h eses. *** Mean v a l ue is se t to O.OE O fo r ca l culated m ea n values w i th e xpone n t l ess th a n E-0 6. -4 9-C o ntr o l S tations M ea n Ra n ge N o. D etected** NO D A T A NO D ATA NO D A T A NO D ATA Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Table 3.2 2017 Environmental TLD Exposure Rate Measurements

(µR/hr.) Onsite TLDs Offsite and Control Mean 5.2 +/- 0.3 Range 4.7 -6.1 No. of Measurements

48 *Each measurement was based on quarterly readings from th ree TLD elements. Units are µR (micro-roentgen) per hour. TLDs 5.8 +/- 0.7 4.8-8 60 Highest Mean (SBN) 7.5 +/- 0.4 7.1 -8 4 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Station Number T-01 T-02 T-03 T-04 T-05 T-06 T-07 T-08 T-09 T-10 T-11 T-12 NBF S BN DOW COL O F T-1 O F T-2 O F T-3 O F T-4 O F T-5 OFT-6 OFT-7 O F T-8 OFT-9 OFT-10 OFT-11 Table 3.3 2017 ENVIRONMENTAL TLD DATA

SUMMARY

First Quarter 5.2 +/- 0.2 5.1 +/- 0.2 4.8 +/- 0.4 5.8 +/- 0.2 4.9 +/- 0.2 5.0 +/- 0.4 5.0 +/- 0.2 5.4 +/- 0.3 4.7 +/- 0.3 5.3 +/- 0.2 5.1 +/- 0.2 5.0+/-0.1 6.1 +/- 0.2 7.1 +/- 0.2 5.2 +/- 0.2 5.0 +/- 0.1 5.0 +/- 0.3 5.4 +/- 0.4 5.4 +/- 0.2 5.6 +/- 0.2 5.3 +/- 0.2 6.6 +/- 0.2 5.2 +/- 0.2 6.3 +/- 0.2 5.6 +/- 0.2 5.2 +/- 0.2 5.9 +/- 0.2 Exposure Rate (µR/hr. +/- 1 std. dev.) Second Third Quarter Quarter 5.1 +/- 0.2 5.6 +/- 0.2 5.1 +/- 0.2 5.0 +/- 0.2 4.7 +/- 0.2 5.0 +/- 0.2 5.8 +/- 0.3 6.0 +/- 0.5 4.9 +/- 0.2 5.2 +/- 0.2 5.0 +/- 0.4 5.2 +/- 0.4 5.1 +/- 0.2 5.2 +/- 0.2 5.1 +/- 0.3 5.4 +/- 0.2 4.7 +/- 0.3 4.8 +/- 0.2 5.2 +/- 0.3 5.7 +/- 0.5 4.8 +/- 0.4 5.0 +/- 0.2 5.0 +/- 0.2 5.4 +/- 0.3 5.4 +/- 0.3 5.5 +/- 0.4 7.4 +/- 0.2 8.0 +/- 0.3 4.8 +/- 0.4 5.0 +/- 0.2 4.9 +/- 0.2 5.0 +/- 0.4 5.3 +/- 0.2 5.6 +/- 0.2 5.2 +/- 0.2 5.8 +/- 0.4 5.2 +/- 0.3 5.9 +/- 0.2 5.6 +/- 0.2 6.0 +/- 0.4 5.3 +/- 0.3 5.5 +/- 0.3 6.6 +/- 0.2 7.4 +/- 0.3 5.3 +/- 0.3 5.7 +/- 0.2 6.0 +/- 0.2 6.5 +/- 0.2 6.0 +/- 0.3 6.1 +/- 0.2 5.3 +/- 0.2 5.6 +/- 0.3 6.4 +/- 0.3 6.8 +/- 0.4 Average Annual Fourth Exposure Rate Quarter (µR/hr) 5.2 +/- 0.3 5.3 5.3 +/- 0.3 5.1 5.2 +/- 0.4 4.9 6.1 +/- 0.2 5.9 5.3 +/- 0.2 5.1 5.2 +/- 0.4 5.1 5.0 +/- 0.2 5.1 5.3 +/- 0.2 5.3 4.7 +/- 0.2 4.7 5.4 +/- 0.4 5.4 4.8 +/- 0.2 4.9 5.3 +/- 0.4 5.2 5.6 +/- 0.3 5.7 7.6 +/- 0.3 7.5 5.0 +/- 0.3 5.0 4.9 +/- 0.2 5.0 5.4 +/- 0.3 5.3 5.6 +/- 0.3 5.5 5.8 +/- 0.2 5.6 6.1 +/- 0.2 5.8 5.7 +/- 0.2 5.5 7.0 +/- 0.3 6.9 5.8 +/- 0.3 5.5 6.8 +/- 0.3 6.4 6.1 +/- 0.3 6.0 5.8 +/- 0.3 5.5 6.7 +/- 0.2 6.5 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 4.0 ANALYSIS OF ENVIRONMENTAL RESULTS 4.1 Sampling Program Deviations The ODCM states in Section 3.5 that the environmental sampling and analysis program shall be conducted as specified in Attachment 3.19 at the locat i ons specified in the same attachment.

Deviations are permitted from the required sampling schedule if specimens are unobtainable due to hazardous condit i ons , seasonal unavailability or malfunction of automatic sampling equipmen t. If specimens are unobtainable due to sampling equipment malfunction , every effort shall be made to complete corrective action prior to the end of the next sampling period. All deviations from the sampling schedule shall be documented in the Annual Radiological Environmental Operating Report pursuant to Section 3.5.2 of the ODCM. In addition , unavailable samples are documented in Data Sheet 1 , Documentation of Unavailable Samples , of CNP procedure 12-THP-6010

-RPP-643 , Quarterly Review of Radiological Environmental Monitoring Prog r am (REMP) Data , and in the Corrective Action Program (CAP) by way of an Action Request (AR) or General Tracker (GT). The following deviations were noted for the 2017 sampling program: 1. 1/6/2017-1/17/2017, 2/4/2017-2/7/2017 , 2/9/2017: No surface water samples were obtained due to ice buildup along the shore of Lake Michigan. On 2/3/2017 only surface water sample SWL-2 could be collected. AR 2017-6207 was written to document these program deviations. Sufficient sample volume for the monthly composites was obtained. 2. 1/1/2017 through 12/31/2017

The required indicator milk samples (minimum of three) were not collected due to the retirement of farm operators and inabil i ty to locate suitable replacement farms. The milk program continued to be suspended in 2017. This has been the case since 2010. GT 00102954-01 documents this event and the commencement of broadleaf sampling in lieu of milk. AR 2011-13312 was initiated in November of 2011 to validate the adequacy of the broadleaf sampling program. The Land Use Census , performed annually by CNP , is used to identify dairy farms. However , no new dairy farms were identified in 2017. Broadleaf sampling in lieu of milk was performed. 3. 5/31/2017:

A reading of run time and flow could not be retrieved from the d i gital flow meter (DFM) of the air pump at the station located off-site in Dowagiac (designated DOW). The air pump was immediately replaced with a calibrated air pump with an operable DFM. Further attempts to get a reading off the DFM were made on site by the qualified technician , but i t would not turn on. The air pump and DFM were sent to the vendor for further investigation and the vendor was only able to conclude that the DFM had failed. Since the telemetry is only capable of registering a loss of power to the air pump (and attached DFM), no notification of when the DFM actually stopped working was received.

This meant that neither run time , nor sample amount could be accurately calculated o r even estimated. Therefore , the sample was deemed unusable. Though results of the weekly run from May 24 , 2017 to May 31 , 2017 were unobtainable, this missing Do n ald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 sample did not affect the quarterly composite results. This was considered a missing sample and was documented in AR 2017-6507. 4. During the month of June 2017 ongoing modifications to switchyards , breaker boxes and electric poles caused temporary power losses to the air stations fed by these components as follows: ONS-2 on June 5 for 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months and 49 minutes; SBN on June 13 for 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months ; ONS-5 on June 14 for one hour and 20 minutes; ONS-6 on June 14 for one hour and 20 minutes; and ONS-5 on June 22 for approximately one and a half hou r s. None of these power losses affected the viability of the samples. These power losses were documented on AR 2017-6499. 5. 10/24/2017

ONS-1 lost power at 11 : 58 during a storm with high winds. ONS-1 is located off Rosemary Road in the wooded dunes north of the plant , on plant property.

The loss of power was due to the Rosemary Road feed losing power. Power was restored approximately six hours later at 17: 50. This loss did not affect sampling or the viability of the sample. This power loss was documented in AR 2017-11306.

ONS-1 had a second loss of power on 12/5/2017 which lasted from 21: 52 to O 1 :41. The loss of power was due to inclement weather. These power losses were documented in AR 2018-4084. 6. 12/27-12/31/2017

Surface Water samples could not be obtained due to ice buildup on the lake and hazardous conditions. These missed samples do not affect the viability of the composite sampling. 4.2 Comparison of Achieved LLD with Requirements Attachment 3.20 from the ODCM (Table 2.3 in this report) lists the Lower Limits of Detection (LLDs) requirements for routine environmental sample analyses. The LLD's are " a priori" (before the fact) commitments to ensure measurements meet criteria for the ability of a sys t em to detect small amounts of radioactivity. The Minimum Detectable Concentration (MDC) is calculated by the laboratory for a given measurement.

The MDC is an " a posteriori" (after the fact) evaluation that quantifies the smallest activity that can be measured with the actual sample and system parameters. The MDC is compared to the LLD to ensure compliance to the requirements is achieved. Appendix D includes flags in the far right hand margin for any occurrences of exceeded MDC's. As discussed in Section 3.5.2 Bases of the ODCM , on occasion , an LLD may not be achieved due to situations such as a low sample volume. In such a case, the ODCM requires the identification and d_iscussion of the contributing factors in the Annual Radiological Environmental Operating Report. These factors are summarized below. There was one missed LLD in 2017, on a broadleaf vegetation sample for nuclide Cs-137; however , this result was conside r ed a false positive by the laboratory due to low abundance. This was documented in AR 2018-4175.

4.3 Results

Compared Against Reporting Levels ODCM Section 3.5.2 requires a discussion in the Annual Radiological Environmental Operating Report of any instance that a radionuclide concentration exceeds the reporting levels given in Attachment 3.21 (Table 2.4 in Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 this report). Reporting Levels are the environmental concentrations t hat relate to the As Low as Reasonably Achievable (ALARA) design dose objectives of 10 CFR 50 , Appendix I. It should be noted that environmental concentrations are averaged over calendar quarters for the purposes of this comparison , and that Reporting Levels apply only to measured levels of radioactivity due to plant effluents. No Reporting Levels were exceeded in 2017. 4.4 Data Analysis by Media Type -Discussion The 2017 REMP data for each media type are discussed below. Graphical plots of monitoring data are also shown in Figures 4.1 to 4.7. Details of results of gamma isotopic analyses are listed in Table 3.1 and full details of all measurements are in Appendix D. 4.4.1 Air Particulate Air particulates were collected weekly on 47 mm particulate filters at six indicator locations and four control locations , and analyzed for gross beta radioactivity. On a quarterly basis , a gamma isotopic analysis was performed on the composite of each location's weekly particulate sample media. Figure 4.1 shows the gross beta concentrations in air particulate filters collected for the operating period of the past ten years. Gross beta concentrations were detectable on all particulate samples , both indicator and control locations. There was a discernible increase in the counts at all stations starting in the middle of 2010 and continuing through 2012 , as shown in Figure 4.1. When an average AREVA ELAB response , on a monthly bas i s is compared to the average GEL response , there is an average increase of approximately 40%. It should be noted that this increase was found in both control samples as well as indicators , and followed the historical trending over the course of the year. This relative increase is attributed to differences in analytical method between the AREVA ELAB (historical data before the second half of 2010) and GEL , (since the second half of 2010 through 2017). The reason for the step increase is related to the change in the gross beta counting equipment configurations and reference calibration standards used by the AREVA lab and GEL. Both labs use(d) gas proportional counting of the filter element. However, AREVA applied a Cs-137 calibration source while the GEL uses a Tc-99 calibration source. In the case of the AREVA data record, the Cs-137 detection efficiency (approximately 34%) was applied to the " gross" counts to determine the apparent activity. This inherently presumes that the radioactivity in a field sample is all Cs-137. In the case of the GEL data record , the Tc-99 efficiency (21 %) is applied to the same " gross" counts as if the ent i re radioactivity in this case is Tc-99. The end result is two different gross beta radioactivity determinations for the same level of environmental activity.

In application , this is not an adverse condition in that the gross beta counting is used as a qualitative indicator of changes Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 in environmental conditions, not as a quantitative measure of the actual radioactivity since the comparison of the response curves for each monitoring station , including the control station, are similar over time, and the curves indicate that there is no detectable influence from a single nearby point source such as the CNP. It can be seen in Figure 4.1 that the annual average gross beta air particulate counts from 2012-2013 and from 2013-2014 exhibit a 20% decrease in both indicator and control locations, each year. No plant related radionuclides were detected on the air particulate composite filters indicating that the changes in the gross beta activity is likely due to naturally-occurring radionuclides. Air particulate activity sampling can depend upon local weather conditions , global weather patterns as well as sampling methodology. Possible sources of this change to average trend line could be:

Unusually harsh weather conditions experienced locally which would lock potential airborne radioactivity in frozen soil or under snow,

Changes (increases) in the local average rainfall which would reduce the amount of airborne particulates available to influence the air particulate samples ,

Changes in global weather patterns effecting transportation of suspended airborne particulates and deposition due to washout mechanisms , or

A decrease in the source of manmade background sources, such as past atmospheric nuclear weapons testing or nuclear accidents such as those at Fukushima Daiichi. Notable in the graph, shown in Figure 4.2, is a distinct annual cycle. The gross beta concentration fluctuations over the year were attributed to seasonal changes in the naturally-occurring airborne radioactivity levels. This conclusion was based on the similarity in fluctuations noted in gross beta concentrations at both the indicator stations and control stations. Results for gamma isotopic analyses performed on quarterly composites of the weekly particulate samples have been listed in Table 3.1. The presence of naturally-occurr i ng Be-7 was detected in all of the indicator and control samples. No other radionuclides were detected in the quarterly composites of the weekly air particulate samples. In summary , the information detailed above was evaluated and found to be consistent with data obtained during the conduct of CNP's "Pre-Operational Radiological Monitoring Program" (PRMP) [see Appendix E]. Also , no significant difference was noted between the average monthly gross beta concentration at the indicator and the control stations.

Therefore, the results were not due to plant operations.

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Figure 4.1 Mean Annual Gross Beta Concentration in Air Particulate Samples Collected over 10 Years 50.0 i----------

-;:::============

==

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~AII Ind ic ator l ocations -All Control Location s 45.0 +------------

-================------------40.0 u a. 6 .... g 30.0 +------::,:~;,--;: C 2s.o C1> 0 C: 0 20.0 0 :~ 15.0 ti < 10.0 5.0 .... .. ... ... 0.0 .. ~*~*

.. .. ~*~* i u C. '? 0 2008 2009 2010 2011 20U 2013 2014 2015 2016 Year Figure 4.2 Mean Monthly Gross Beta Concentration in Air Particulate Samples Collected in 2017 2017 40.0 ,---------------------------------

15.0 -!---------------------------------

-+-l ndicatorlo c ation ..,. Contro l Lo c ation Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 4.4.2 Airborne Iodine Airborne iodine sample media were collected weekly in conjunction with the air particulate sample media replacement.

These media were analyzed for lodine-131. No Iodine was detected above the MDC in 2017. Full details of all measurements can be found in Appendix D. The information detailed above was evaluated and found to be consistent with data obtained during the conduct of CNP's PRMP. 4.4.3 Groundwater (Well) Groundwater samples were collected from seventeen well locations on a quarterly frequency and analyzed for gamma isotopic and tritium [See Table 3-1]. The presence of K-40 was identified in two samples out of sixty-nine samples. The presence of K-40 in groundwater samples is attributed to natural occurrences since it is not a fission or activation product related to plant operations. Tritium was not detected above the associated MDC in any 2017 groundwater sample. Figure 4.3 and 4.4 plot the measured activity of tritium , when detected at levels above the MDC. For years where no tritium was detected above the MDC, no values were plotted. While ground water sampling was not performed as part of CNP's PRMP, the information detailed above was evaluated and found to be consistent with data obtained during the plant's operational history. Therefore, the results were not due to plant operations.

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 ... (I) u Figure 4.3 Tritium Detected in Groundwater Over the Past 10 Years (W1-W7) 20 , 000 ****-*-***-*-***********-*-**--*-

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II W-8 I> W-9 W-10 a W-11

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W-13 W-14 " MW-20

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Jao*'\'l Jao*'\4 Jao*'\S Jao*'\6 Jao*'\1 Jao-'\S Sample Date Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 -... a, :t:: 4.4.4 Drinking Wate r Drinking water samples were collected daily from one indicator and one control station. A 14-day composite was analyzed for gamma isotopic and gross beta radioactivity. A quarterly composite was analyzed for tritium. A specific lodine-131 low-level analysis performed on all samples indicated that no lodine-131 was present. Figure 4.5 shows a plot of the tritium data going back 10 years. Only measurements that were detected at levels above the MDC were plotted. No tritium was detected in drinking water samples in 2017. During 2017 , the presence of gross beta radioactivity was not identified in any indicator or control samples. One gamma emitting radionuclide was detected above the MDC , naturally-occurring Th-228 , in one control sample in 2017. As such , it is not due to plant operations. While drinking water sampling was not performed as part of CNP's PRMP , the information detailed above was evaluated and found to be consistent with data obtaine d during the plant's operational history. Figure 4.5 Tritium Detected in Drinking Water Over the Past 10 Years Reporti n g L evel S 1 5 , 000 +-------------------------------

0 Q. -C: 0 :;:; C'CI ... +' C: 1 0 , 000 c: 0 0 E :::, :;:; *;:: I-* StJ oseph I! La k e T owns h ip 5 , 000 +-------------------------------

I Lower Limit of Detect i on 0 +----~~~~~-,----,----~

Sample Date Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 4.4.5 Surface Water Surface water samples were collected daily from two indicator loca ti ons , when available (See section 4.1 for sampling deviations).

Monthly composites were analyzed for gamma-emitting radionuclides and quarterly composites were analyzed for tritium. One gamma-emitting radionuclide was detected above the MDC , naturally-occurring Th-228. Tritium was not detected above the MDC in any of the samples collected i n 2017. The information detailed above was evaluated and found to be consistent with data obtained during past operational periods and the conduct of CNP's PRMP. There was no impact to this sample medium from plant operations in 2017. 4.4.6 Sediment Semiannual samples of lake sediments were collected from two indicator stations and analyzed for gamma-emitting nuclides. During 2017 , K-40 was detected in all four samples , and Th-228 was detected in three samples. Additionally, one sample contained Ac-228. Th ese radionuclides are expected as part of the naturally-occurring thorium decay series. No other gamma-emitting nuclides were detected in any of the samples collected in 2017. Unlike many past operat i onal and operational periods where traces of Cs-137 were found , no detectable Cs-137 was identified in 2017 samples [See Table 3.1 ]. The information detailed above was evaluated and found to be consistent with data obtained during the conduct of CNP's PRMP and the presence of naturally-occurring radionuclides (K-40 and Ac/Th-228) was not attributed to plant operation. 4.4.7 Milk Milk samples were not collected during 2017 , as milking operations ceased at the indicator farm (Shafer) in September 2014, and at the control farm (Livinghouse) in October 2014. Condition Report 04351048 and AR 2011-13312-1 had previously been written to document the milk farm events and to validate the adequacy of the broadleaf and milk sampling process. 4.4.8 Food Products & Vegetation Vegetation samples (broadleaf) analyzed for gamma-emitting nuclides identified the presence of naturally-occurring Be-7 and K-40 in all samples from both indicator and control locations. Three vegetation indicator samples contained trace levels of Cs-137. The indicator samples ranged from 48.2 to 103 pCi/kg; the latter was considered a false positive by the laboratory due to low abundance but was included in the off-site dose analysis for conservatism.

This was documented in AR 2017-10991 for tracking purposes. Although the presence of Cs-137 is Don a ld C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 consistent with historical data, pre-operational samplings of broadleaf media were not collected before CNP construction.

The historical results for this media indicate that the presence of Cs-137 could be the result of atmospheric weapons testing. The presence of Cs-137 was noted in 2011 after the Fukushima disaster.

AR 2011-4952 was written in response to the 2011 samples. The Cs-137 detected is not considered to be a result of CNP gaseous effluents, as this result is consistent with historical data , and there were no Cs-137 releases from 2010 through 2014 or in 2016-2017, with only one ten (10) minute release containing Cs-137 in 2015. One annual sample of food products (blackberries and grapes) each from two indicators and a control location was analyzed for gamma-emitting nuclides. Analysis identified the presence of naturally-occurring K-40 in both indicator and control samples , and Be-7 in the control sample. While food product sampling was not performed as part of CNP's PRMP, the information detailed above was evaluated and found to be consistent with data obtained during the plant's operational history. The presence of the naturally-occurring detected radionuclides was not attributed to plant operations.

4.4.9 Fish REMP fish samples were collected on two occasions at two indicator and two control locations. K-40 was detected in all the samples. Trace levels of Cesium-137 were observed in four indicator and two control samples, ranging from 16.1 to 33.3 pCi/kg. Additionally , non-REMP perch, salmon , and trout sampling was initiated in the third quarter of 2011. One of the two non-REMP indicator samples (perch and salmon) had a trace level of Cs-137 (15.2 pCi/kg). Both samples had K-40. AR 2017-13142 was written to document the occurrence for trending purposes.

The information detailed above was evaluated and found to be consistent with data obtained during the conduct of CNP's PRMP and during the plant's operational history. With the historical detection of similar trace levels of radioactivity in both the indicator and control samples, the presence of the detected r adionuclides was not attributed to plant operation. 4.4.10 Gamma Exposure Rate Direct radiation was continuously measured at 27 locations surrounding CNP with TLDs. All TLDs were collected quarterly and processed by Stanford Dosimetry at the Environmental Dosimetry Company laboratory in Sterling , Massachusetts. The results in Tables 3.2 and 3.3 show that the mean exposure rates for the onsite and offsite categories were not significantly different in total for 2017. As shown in Figure 4.6, there is a similar annual cycle at both onsite and offsite locations.

The lowest point of the cycle typically occurred during the winter months. This is attributed primarily to the attenuating effect of the snow cover and frozen ground on radon Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 16.0 14.0 12.0 -... (I) t:: Cl! a 10.0 c2 E (I) 8.0 .., Cl! 0:: (I) ... ::::, 6.0 u, 0 a. >< w 4.0 2.0 0.0 1 emissions and on direct irradiation by naturally-occurring radionuclides in the soil. Also contributing to the variation in radiation levels at different field sites was the varying distribution of radionuclides in the underlying soil, rock or nearby building materials.

Figure 4.7 illustrates that the average trend line over the last ten years for the offsite stations runs slightly higher than that for the onsite stations , suggesting that there is no detectable plant component of direct radiation that can be seen above the natural background exposure rate. In July 2010 , the Environmental Dosimetry Company assumed responsibility for calibration and processing of the TLDs used for these activities. The Panasonic Model UD-814 AS4 TLDs that had historically been used to measure direct radioactivity around CNP continued to be in use. The information detailed above was evaluated and found to be consistent with data obtained during the conduct of CNP's PRMP. Figure 4.6 Direct Radiation

-Quarterly TLD Results -------I --Onsite ...... Offsite -+-Control I I I 2 3 4 Measurement Quarter Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 ... Cl) t:'. C'CI :::J E Cl) Cl C'CI ... Cl) 20 -18 16 14 Figure 4.7 Direct Radiation, Annual Summary 10 Years Historical Trend 2008 2009 2010 2011 2012 Year 2013 2014 2015 C2J 0n-Sit e G:J Off-Sit e -Cont rol 2016 2017 4.4.11 Additional Sample Analysis (non-ODCM required samples) Groundwater (Radioactive Equipment Storage Facility , Steam Generator wells) -Two one-liter well water samples were taken at 4 locations quarterly. These samples were analyzed for tritium by GEL. The samples are also analyzed for gamma, gross beta, and gross alpha for tracking purposes [see Appendix D]. Gross Beta levels identified are consistent with historical values. There was no gross alpha detected in 2017. Measured tritium activities in the samples were all found to be less than the MDC. No plot for this data was possible because since 2007 , there has been no positive identification of tritium in wells SG-1 through SG-5. Tritium in these wells is also be i ng tracked by the CNP Groundwater Protection Initiative and is discussed further in Appendix F.

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 5.0 OFF-SITE DOSE EQUIVALENT COMMITMENTS The purpose of this section is to evaluate off-site dose consequences (dose equivalent commitments) associated with CNP radioactive liquid and airborne effluents. The method utilizes Regulatory Guide 1.109/0DCM models and actual measurements of the concentrations of radioactivity in environmental media to compute the dose consequences resulting from the consumption of these foods. The doses are based on an assumption that the individuals consume fish or broadleaf vegetation year round at the respective average Cs-137 concentrations determined during 2017. The maximum consumption rates from Regulatory Guide 1.109 are also assumed , although the consumption fraction was conservatively assumed to cover the entire time period in which Cesium was measured in the broadleaf samples. The dose commitments calculated in this section are compared to the ALARA dose objectives of 1 OCFR50 Appendix I for liquid and/or gaseous effluents. These standards are a fraction of the average USA background radiation of 300 mrem per year given in NCRP 94 (Reference 2). Trace levels of Cesium-137 were detected in six REMP fish samples and one REMP sample and are detailed in Table 5.1 and dose summarized in Table 5.3. The concentrations ranged from 15.2 to 33.3 pCi/kg , all of which are well below the required LLD of 150 pCi/kg. The presence of this radionuclide was determined to not be the result of operations at the CNP. Given that, the dose impacts from ingestion of the radionuclide yielded a maximum dose of 3.16E-02 mrem/year total body (for the adult age group) and 5.03E-02 .mrem/year to the liver (for the teen age group). This represents 1.1 % and 0.5% of the total body and organ dose objectives of 1 OCFR50 Appendix I (3 mrem/yr. and 10 mrem/yr., respectively). Table 5.1: Cs-137 Concentration in Fish Samples Media Station Sample Concentration Date (pCi/kQ) Fish Perch 419356001 15.2 3-17-17 Fish OFS-N 428363001 33.3 7-18-17 Fish ONS-N 428363002 22.9 7-18-17 Fish ONS-S 428363003 21.5 7-18-17 Fish ONS-N 432037002 19.8 8-30-17 Fish ONS-S 432037003 18.8 8-30-17 Fish OFS-S 432037004 16.1 8-30-17 Average 21.1 Trace levels of Cesium-137 were detected in three broadleaf vegetation samples and are detailed in Table 5.2 with doses summarized below in Table 5.3. The concentrations ranged from 48.2 to 103 pCi/kg; the latter was considered a false positive by the laboratory due to low abundance but was included in the off-site dose analysis for conservatism.

One concentration was above the required LLD of 60 pCi/kg. The presence of this radionuclide was determined to not be the result of operations at the CNP and none of the samples were from plants that are commonly eaten. Given that , the dose impacts from ingestion of the radionuclide yielded a total body dose of 7.87E-02 mrem/year (for the adult age group) and total critical organ dose of 1.47E-01 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 mrem/year to the bone (for the child age group). This represents 1.6% and 1.0% of the total body and organ dose objectives of 1 OCFR50 Appendix I (5 mrem/yr. and 15 mrem/yr. respectively). Table 5.2: Cs-137 Concentrations in Broadleaf Samples Media Station Sample Concentration Date (pCi/kg) Broadleaf ONS3-V 424682003 48.2 6-2-2017 Broadleaf ONS2-V 427451004 55.6 7-7-17 Broad leaf ONS3-V 434226003 103 10-3-2017

' Average 68.9 Table 5.3 , below, summarizes each of the dose commitments calculated for each of the media, that had positive results for radionuclides that are not naturally occurring. Table 5.3: Summary of Off-Site Dose Commitments Media Radionuclide Limiting Organ Organ Dose Whole Body Dose raQe group] (mrem/vr.) (mrem/yr.)

Fish Cs-137 Liver [Teen] 5.03E-02 3.16E-02 Broadleaf Cs-137 Bone [Child] 1.47E-01 7.87E-02 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 6.0

SUMMARY

OF REMP, ODCM, AND VENDOR PROCEDURE CHANGES The ODCM was not revised in 2017. The following changes were made to CNP REMP procedures in 2017: Procedure No.: 12-THP-6010

-RPP-634 Rev. No.: 14 Title: Collection of REMP Groundwater Samples Alteration Justification Revised and updated procedure to provide Provide further directions. Improved ease of further directions and improve ease of understanding.

Made editorial corrections. understanding as well as editorial corrections. Procedure No.: 12-THP-6010-RPP-635 Rev. No.: 8 Title: Collection of Milk Samples Alteration Justification Step 5.1 -Changed the procedure name Removing the word Grape eases the spec i ficity referenced from " Grape" to " Food Products." of sampling.

Aligns procedure with wording in NUREG 1301 and Branch Techn i cal Position which say " Food Products". AR 2016-8561 Step 7.1.2 -Changed the procedure name Removing the words Grape eases the referenced from " Grape" to " Food Products." specificity of sampling. Aligns procedure with wording in NUREG 1301 and B r anch Technical Position wh i ch say " Food Products". AR 2016-8561 Procedure No.: 12-THP-6010-RPP-638 Rev. No.: 11 Title: Collection of Food Products and Broadleaf Samples Alteration Justification Header: Title changes from " G r ape" samples Removing the words Grape eases the to " Food Products." specificity of sampling. Aligns procedure with twording in NUREG 1301 and B r anch Technical Step 1.1 -Changed " grape" samples to " food Position which say " Food Products". products" samples. ~R 2016-8561 Step 4.1.2 -First bullet , changed " grape" samples to " food products" samples.

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Procedure No.: 12-THP-6010-RPP-643 Rev. No.: 12 -----Tit l e: Quarterly Review of Radiological Environmental Monitoring Program (REMP) Data Alteration Justification Provided more clarification to the procedure to Improved ease of use. improve ease of use, and matched wording wit h the ODCM and industry standards. Matched wording w i th the ODCM and industry standards. There were no revisions to procedures for the Env i ronmental Dosimetry Company in 2017.

i Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Table 6.1 below summarizes the changes made by GEL Laboratories during 2017 to the procedures that are used for the Donald C. Cook Nuclear Plant REMP. Table 6.1 GEL 2017 Procedure Changes SOP# Rev SOP Title Issue DIRR Date Type Preparation, Authorization , Revision , GL-ADM-E-001 18 Release , and Retirement of Standard 8-Mar-17 Revision Operating Procedures GL-CO-E-002 8 Deleqated Authority to Commit the Company 10-Mar-17 Revision GL-CS-E-008 3 Prelogin, Login, and Login Review 29-Mar-17 Revision GL-CS-M-001 8 Project Management AlohaLIMS Manual 7-Dec-17 Change GL-DC-E-001 18 Document Control 8-Mar-17 Revision GL-GC-E-008 22 pH 20-Dec-17 Revision GL-GC-E-009 13 Conductivity and Salinity 29-Mar-17 Revision GL-GC-E-009 14 Conductivity and Salinity 10-0ct-17 Revision GL-GC-E-011 14 Total Solids 9-0ct-17 Revision G L-OTH-S-006 7 Annual Quality Systems Traininq 13-Mar-17 Chanqe GL-QS-8-001 30 Quality Assurance Plan 1 O-Mar-17 Revision GL-QS-8-002 9 DoD ELAP Quality Assurance Plan 6-Jun-17 Change GL-QS-E-001 23 Conduct of Quality Audits 6-Feb-17 Revision GL-QS-E-001 24 Conduct of Quality Audits 2-Jun-17 Revision GL-RAD-A-001 18 The Determination of Gross Alpha And Gross 13-Feb-17 Revision Non-Volatile Beta in Water GL-RAD-A-The Determination of Gross Alpha And Gross 0018 17 Non-Volatile Beta in Soil , Filters , Solid 21-Mar-17 Revision Matrices And Direct Count Air Filters GL-RAD-A-10 The Determination of Gross Alpha in Water 21-Jul-17 Revision 001C by Co-Precipitation GL-RAD-A-3 The Determination of Gross Alpha and Gross 3-Mar-17 Revision 0010 Non-Volatile Beta in Drinking Water G L-RAD-A-002 21 The Determination of Tritium 19-May-17 Revision The Determination of Strontium 89/90 in GL-RAD-A-004 17 Water , Soil, Milk , Filters , Vegetation and 15-Feb-17 Revision Tissues The Determination of Strontium 89/90 in G L-RAD-A-004 18 Water , Soil , Milk , Filters , Vegetation and 17-Jul-17 Revision Tissues G L-RAD-A-005 25 The Determination of Technetium-99 Using 29-Mar-17 Revision TEVA Resin GL-RAD-A-010 15 Total Alpha Radium Isotopes in Soil and 21-Mar-17 Revision Water GL-RAD-A-013 25 The Determination of Gamma Isotopes 24-Feb-17 Revision GL-RAD-A-013 26 The Determination of Gamma Isotopes 18-Apr-17 Revision GL-RAD-A-015 16 Digestion for Soil 27-0ct-17 Change Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SOP# Rev SOP Title Issue DIRR Date Type GL-RAD-A-017 14 The Determination of lodine-131 in Drinking 3-Mar-17 Revision Water GL-RAD-A-018 13 The Determination of Lead-210 in Liquid and 13-Mar-17 Revision Solid Matrices GL-RAD-A-020 15 The Determination of Promethium-147 in Soil 15-Jun-17 Revision and Water GL-RAD-A-021 20 Soil Sample Preparation for the Determination 24-May-17 Change of Radionuclides GL-RAD-A-026 15 The Preparation of Special Matrices for the 30-Mar-17 Change Determination of Radionuclides G L-RAD-A-026 16 The Preparation of Special Matrices for the 21-Jun-17 Change Determination of Radionuclides GL-RAD-A-026 16 The Preparation of Special Matrices for the 21-Jun-17 Revision Determination of Radionuclides GL-RAD-A-028 18 Radium-226 in Drinking Water by EPA 3-Mar-17 Revision Method 903.1 GL-RAD-A-029 13 The Determination of Strontium-89/90 in 3-Mar-17 Revision Drinking Water by EPA Method 905.0 G L-RAD-A-029 14 The Determination of Strontium-89/90 in 27-Apr-17 Revision Drinking Water by EPA Method 905.0 G L-RAD-A-030 19 Determ i nation of Radium-228 in Drinking 3-Mar-17 Revision Water GL-RAD-A-031 12 The Determination of Selenium 18-May-17 Revision GL-RAD-A-033 12 Determination of Chlorine-36 in Solid and 13-Feb-17 Revision Liquid Samples G L-RAD-A-033 13 Determination of Chlorine-36 in Solid and 22-Nov-17 Revision Liquid Samples GL-RAD-A-035 17 The Isotopic Determination of Plutonium-241 22-May-17 Revision GL-RAD-A-035 18 The Isotopic Determination of Plutonium-241 12-Jul-17 Revision GL-RAD-A-040 12 The Determination of Fe-55 in Liquid and 20-Apr-17 Change Solid Matrices by Liquid Scintillation Counter GL-RAD-A-041 11 The Determination of Total Activity in Solids 20-Apr-17 Change and Liquids GL-RAD-A-044 7 Tota l Alpha Radium Isotopes in Drinking 21-Mar-17 Revision Water GL-RAD-A-047 6 48 Hour Rapid Gross Alpha Test 21-Mar-17 Revision GL-RAD-A-049 7 Determination of Sulfur-35 21-Apr-17 Change GL-RAD-A-050 10 The Determination of Tritium in Drinking 3-Mar-17 Revision Water Samples GL-RAD-A-054 2 The Determination of Strontium-90 in Brine 21-Mar-17 Revision GL-RAD-A-056 3 The Determination of Gross Alpha and Beta 20-Apr-17 Change by Liquid Scintillation Counter GL-RAD-A-057 3 Rapid Determination of Radium-226 by Alpha 21-Sep-17 Deletion Spec GL-RAD-A-058 1 The Rapid Determination of Strontium 89/90 13-Mar-17 Revision by Gas Flow Proportional Counting GL-RAD-A-059 5 The Determination of Technetium-99 Using 16-Mar-17 Revision Analytical Grade 1 X8 Resin Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Repo rt 2017 SOP# Rev SOP Title Issue DIRR Date Type GL-RAD-A-062 0 The Determination of Tritium by Combustion 20-Apr-17 Change GL-RAD-A-062 1 The Determination of Tritium by Combustion 23-Jun-17 Deletion GL-RAD-A-063 0 The Determination of Rad i um-228 in Diff i cult 16-Feb-17 Re vi s i on Matrices GL-RAD-A-065 1 The Determination of Carbon-14 in 27-0ct-1 7 Revision Atmospheric Screening Cartridges GL-RAD-A-067 0 The Determination of Tritium and Carbon-14 20-Ap r-1 7 Ch a nge in Combustible Materials us i ng Pyrolysis GL-RAD-A-067 1 The Determinat i on of Tritium and Carbon-14 12-0ct-1 7 Re vi sion in Combustible Materials us i ng Pyrolysis The Determination of Americium, Curium , New GL-RAD-A-068 0 Plutonium , Uranium , and Thorium in Liquid 25-Jul-17 Doc u ment and Solid Matrices Using Eichrom Resin The Sequential Dete r minat i on of Isotopic GL-RAD-B-001 49 Americ i um , Curium , Californium , Plutonium , 22-Sep-1 7 Re visi on Stront i um , and Uran i um in U r ine GL-RAD-B-009 19 Bioassay Count Room Alpha Spectrometry 20-Apr-17 Rev i sion Instrument Standardization and Performance GL-RAD-B-017 14 The De t ermination of Neptunium i n Urine 31-May-17 De l etion G L-RAD-B-026 14 Bioassay Data Review , Val i dation , and Data 31-Jul-1 7 Re vi sion PackaQe Assembly GL-RAD-B-027 2 Specific Gravity in Urine 14-Nov-17 Dele t ion GL-RAD-B-032 0 Concentration of Tritium by Electrolysis 21-Sep-17 Deletion GL-RAD-B-041 1 The Sequential Determinat i on of Isotopic 28-Feb-1 7 Re vi s i on Thorium and Neptunium in Urine GL-RAD-D-003 40 Data Review , Validation and Data Package 14-Mar-1 7 Rev i s i on Assembly GL-RAD-D-003 41 Data Review , Validation and Data Package 4-May-17 Revision Assembly GL-RAD-D-003 42 Data Review, Val i dation and Data Package 4-May-17 Change Assembly G L-RAD-D-005 2 REMP Quality Control PackaQe Assembly 20-Jun-17 Rev i sion GL-RAD-D-006 7 Equations Used in Data Reduction for 3-May-17 Revision Env i ronmental Radiochem i stry GL-RAD-D-006 8 Equat i ons Used in Data Reduction for 31-Jul-17 Rev i sion Environmental Radiochemistry GL-RAD-E-001 0 The Assembly and Packing of Molecular 22-May-17 New Sieve Cassettes Document GL-RAD-1-001 20 Gamma Spectroscopy System Operation 15-Feb-17 Rev i sion GL-RAD-1-006 17 LB4100 Gross Alpha/Beta Counter Operating 14-May-17 Revision Instructions GL-RAD-1-007 11 Ludlum Lucas Cell Counte r 3-Ma r-17 Revision GL-RAD-1-009 15 Alpha Spectroscopy System 30-May-17 Revision GL-RAD-1-013 4 Column Preparation 15-Jun-17 Rev i sion GL-RAD-1-015 6 WPC 9550 Gross Alpha/Beta Counter: 10-May-17 Rev i s i on Operating Instructions GL-RAD-1-016 10 Multi-Detector Counter: Operating Instructions 4-May-17 Revision GL-RAD-1-019 5 Management of Blank Populations 28-Apr-17 Revision Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SOP# Rev SOP Title Issue DIRR Date Type GL-RAD-1-021 0 G5400W Series Alpha/Beta Counting System 19-Apr-17 New Operating Instructions Document G L-RAD-S-000 5 Radiation Safety Plan for GEL Laboratories, 16-Mar-17 Revision LLC GL-RAD-S-003 9 Administration of the Radioactive Material 9-May-17 Revision License Inventory GL-RAD-S-015 4 The Acceptance and Classification of 9-May-17 Change Radioactive Material G L-RAD-S-016 2 Radiological Work Permits 1 O-May-17 Revision

7.0 REFERENCES

1. US NRC Radiological Assessment Branch Technical Position, "An Acceptable Radiological Environmental Monitoring Program ," Revision 1 , November 1979. 2. NCRP Report No. 94 , Exposure of the Population in the United States and Canada from Natural Background Radiation, National Council on Radiation Protection and Measurements , 1987.

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 APPENDIX A SYNOPSIS OF ANALYSIS TECHNIQUES A-1 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 GEL Labs GROSS ALPHA/BETA ANALYSIS Air particulate samples, collected on a weekly basis aid in verifying the in-plant controls used for monitoring the release of radioactive materials. The samples are transmitted to the laboratory for gross beta radioactivity analysis. Air particulate samples are analyzed on a low background alpha/beta gas proportional counting unit , for a predetermined amount of time, following a delay to allow for the decay of radon products.

Blank filters, either provided by the client, or of the same size and type as the client filters are used for background subtraction. If the beta activity concentration is greater than 0.2 pCi/m 3 , the sample may need to be analyzed for individual gamma emitters.

Each sample is composited by sampling location and held until the end of the quarter for a gamma isotopic analysis.

Environmental water samples are also analyzed for gross alpha and/or gross beta radioactivity.

Measurable amounts of alpha and beta emitting radionuclides, either naturally-occurring or artificially produced, are found in most environmental water samples. Gross alpha and gross beta measurements are rapid screening methods that may indicate the need for a more detailed isotopic analysis. Samples are evaporated to near dryness and quantitatively transferred to concentric ring , stainless steel planchets , where the evaporation is completed as described in EPA Method 900.0. A gas proportional counter is used for the measurement of gross alpha/gross beta radioactivity. Solid deposition is an interference in this method and must be accounted for during instrument calibration. No decay is accounted for in the gross alpha/beta activity concentration calculations since the radionuclides of origin are not known. The MDC depends on sample size , counting system characteristics, background, and counting time. Typical counting times for gross alpha/beta analyses are seventy-five minutes for waters and sixty minutes for air particulate filters. GAMMA SPECTROMETRY The following media are typically analyzed for gamma-emitting radionuclide activity: milk , water, charcoal cartridges, airborne particulate filters , biological material (which includes aquatic animals , plants , and terrestrial vegetation), and sediment or soil samples. Samples are prepared by various controlled methods (blending , drying, milling) in order to maximize the volume that can be analyzed, and to achieve sample homogeneity.

In order to ensure the precision and accuracy of the gamma measurements , specific counting containers are used to l oad sample media in a reproducible manner. Sample spectra are collected via high purity germanium based gamma ray spectrometry detection systems. The gamma spectrometry software can account for baseline corrections , background peak interferences , and photopeak multiplet resolution. Detected photopeaks are identified using a comprehensive library, specifically tailored for environmental monitoring around nuclear power facilities. Typical counting times for gamma spectrometry analyses vary from 7,200 to 30,000 seconds. LOW LEVEL IODINE ANALYSIS The low detection limit required for 1-131 in milk and water samples can only be achieved by radiochemical separation and concentration of the iodine. A-2 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Ioda t e carrier is added to an acidified sample and, after reduction with Sodium Sulphate (Na 2 S0 4> to iodide , the 1-131 is precipitated with Silver Nitrate (AgN03). The precipitate is dissolved and purified with Zinc powder and Sulfuric Acid (H2S04) and the solution is prec i pitated as Palladium Iodide (Pdl 2), which is then filtered on to a polypropylene filter and cou n ted on a low background gas flow proportional counter. H-3 ANALYSIS The determination of tritium in environmental matrices basically involves a sample preparation step followed by distillation and analysis of the pure distillate by liquid scintillation spectrometry.

The tritium counting efficiency is determined using an efficiency curve generated as a function of sample quench. A set of NIST (National Institute of Standards and Technology) traceable standards is used for calibration.

The sample preparation step involves extracting H-3 from the matrix in the presence of Sodium Hydroxide (NaOH) and Potassium Permanganate (KMn0 4) allowing for sufficient equilibration time so that a complete transposition of tritium with stable hydrogen has occurred. A-3 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 APPENDIX B 2017 LAND USE CENSUS B-1 . ' ,, ..,

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 2017 Radiological Environmental Monitoring Program Land Use Census Summary Date: September 30, 2017 Purpose A Land Use Census (LUC) is performed annually to identify relevant changes in land usage in the area surrounding Donald C. Cook Nuclear Plant (CNP) which have the potential to affect radiation exposure pathways.

Identified changes are evaluated to determine if modifications should be made to the Radiological Environmental Monitoring Program (REMP) or other related programs.

Details were documented in Data Sheet 1, Land Use Census , of CNP procedure 12-THP-601 RPP-640, Land Use Census. A summary of the 2017 LUC is detailed below. Dairy Farm Survey A dairy farm survey was conducted from September 14 through September 30, 2017, to update the following information

Dairy farms located in the area around the CNP (within Berrien County, Ml)

Location nearest to CNP where animal milk is produced for human consumption. During the survey period, one new dairy farm was identified within Berrien County Michael & Heather Carpenter Sector/Distance from CNP: G / 12.9 miles (68,218 feet) 14714 Main Street, Buchanan, Ml 49107 Currently, there are zero (0) indicator (within eight km of the CNP) farms/residences which have dairy animals providing milk for human consumption which participate in the CNP REMP Dairy Farm Milk sampling program. CNP REMP requirements specify a minimum of three indicators (within 8 km of CNP) milk farms/residences are needed to support the milk sampling program. Due to the lack of any dairy farms/residences within the specified distance and the one identified farm declining to participate at this time , the milk sampling program continues to be considered suspended. In accordance with REMP guidance, broadleaf sampling "in-lieu of milk" continues to be conducted as a compensatory action for this condition.

The location which was determined to be the closest having milk-producing animals (cows) whose milk is used for human consumption did not change from the 2016 report: Shuler Farm (REMP Designation:

SF) Sector/Distance from CNP: G and H / 4.1 miles (21,648 feet) 2791 Snow Rd., Baroda, Ml 49101 B-2 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Live s tock for Consumption Survey During the time period September 14 through September 30 , 2017 , the Livestock Survey exa m ined farms near CNP that produce livestock for consumption to determine the location clos e st to CNP in each land sector within 5 miles. As a result of information obtained prior to and during the census period, no new farms which sup p ort livestock (beef and/or goats) operations were identified within five miles of CNP. The location which was determined to be the " Closest Livestock for Consumption (meat)" did not c hange from the 2016 report. Robert Mast Farm Sector/Distance From CNP: F / 1.41 miles (7,445 feet) Livingston Road , Bridgman , Ml , 49106 Residential Land Use Survey From June 1, 2016 to June 1, 2017 , per Lake Township Building Inspector, Jim Gast, 0 (zero) new residential building permits were issued for residential construction in the Lake Township sect i ons that border the CNP property (Sections 5 , 6 , 7 , and 8). Additionally, there were 0 (zero) Demolition Permits issued during that time. As a consequence , there was no impact on the " closest residences" already listed on 12-THP-601 O-RPP-640 Data Sheet 1 -"Residential Land Use Data" section. Per email correspondence with the Berrien County Health Department , there were no groundwater well permits issued in Lake Township Sections 5 , 6 , 7 , or 8 during this time period. Per e mail correspondence with the Michigan Department of Agriculture, there was no usage of Lak e Michigan water for agricultural irrigation purposes in Berrien County. Garden Census, Grape and Broadleaf Sampling Duri n g the time period September 14 through September 30 , 2017, a survey of nearby properties verified that the closest garden producing leafy vegetables continues to be the same as i d entified in previous years: Jim McLean Sector/Distance from CNP: C / 0.91 miles (4 , 805 feet) 7379 Rosemary Road , Stevensville , Ml , 49127 In li e u of conducting the Garden Census as pa rt of this LUC , 2017 Broadleaf Sampling was perf o rmed per the requirements of the ODCM and in accordance with 12-THP-6010-RPP-638 , Coll e ction of Food Products and Broadleaf Samples. Noti fi cations and Updates The 2017 Land Use Census identified no relevant changes in usage to areas surrounding CNP. The identified changes in this report have been evaluated per PMP-601 O-OSD-001 Off-Site Dos e Calculation Manual , and represent no changes in dose commitment.

B-3 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 APPENDIX C Quality Assurance Program C-1 L_

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Appendix C: Quality Assurance (QA) Programs GEL Laboratories QA GEL's primary goals are to ensure that all measurement data generated are scientifically and legally defensible , of known and acceptable quality per the data quality object i ves (DQOs), and thoroughly documented to provide sound support for environmental decisions.

In addition , GEL continues to ensure compliance with all contractual requirements , env i ronmental standards , and regulations established by local, state and federal authorities. GEL admin i sters the QA program in accordance with their Quality Assurance Plan , GL-QS-B-001. The Quality Systems include all (QA policies and quality control (QC) procedures necessary to plan , implement , and assess the work that GEL performs. GEL's QA Program establishes a quality management system (OMS) that governs all of the activities of the organization. The results of GE L's assessment of the i r laboratory activities l i sted in th i s sectio n entails the ir quality assurance program for the proficiency testing (PT) and environmental mon i toring aspects of GEL for 2017. GEL's QA Program is designed to monitor the quality of analytical processing associated with environmental , radiobioassay, effluent (10 CFR Part 50), and waste (10 CFR Part 61) sample analys i s. This summary was extracted from GEL Laboratories report entitled " 2017 Annua l Quality Assurance Report for the Radiological Environmental Monitoring Program (REMP)", dated March 9 , 2018 , and includes:

Intra-laboratory QC results analyzed during 2017.

Inter-laboratory QC results analyzed during 2017 where known values were available. QA Programs for Inter-laboratory, Intra-laboratory and Third Party Cross Check In addition to internal and client audits, GEL's laboratory participates in annual performance evaluation studies conducted by independent providers. GEL routinely participates in the following types of performance audits:

PT and other inter-laboratory comparisons

Performance requirements necessary to reta i n Certifications

Evaluation of recoveries of certified reference and in-house secondary reference materials using statistical process control (SPC) data.

Evaluation of relative percent difference between measurements through SPC data. GEL also participates in a number of PT programs for federal and state agencies and as required by contracts. It is GEL's policy that no proficiency evaluation samples be analyzed in any special manner. GEL's annual performance evaluation participation generally includes a combination of studies that support the following:

US Environmental Protect i on Agency Discharge Monitoring Report , Qual i ty Assurance Program (DMR-QA). An annual national program sponsored by the US Environmental Protection Agency (EPA) for laboratories engaged in the analysis of samples associated with the NPDES monitoring program. Participation is mandatory for all holders of C-2 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 NPDES permits. The permit holder must analyze for all of the parameters listed on the discharge permit. Parameters include general chemistry, metals, biochemical oxygen demand , chemical oxygen demand, oil and grease, ammonia , nitrates , etc.

Department of Energy (DOE) Mixed Analyte Performance Evaluation Program (MAPEP). A semiannual program developed by the DOE in support of DOE contractors performing waste analyses.

Participation is required for all laboratories that perform environmental analytical measurements in support of environmental management activities.

This program includes radioactive isotopes in water, so i l , vegetation and a ir filters.

ERA's Multimedia Radiochem i stry PT program (MRaDŽ). This program is for labs seeking certification for radionuclides in wastewater and solid waste. The program is conducted in strict compliance with USEPA National Standards for Water Proficiency study.

ERA's lnterLab RadChem PT Program for radiological analyses. Th i s program completes the process of replacing the EPA Environmental Monitoring Systems Laboratory, Las Vegas (EMSL-LV)

Nuclear Radiation Assessment Division program which was discontinued in 1998. Laboratories seeking certification for radionuclide analysis in drinking water also use the study. This program is conducted in strict compliance with the USEPA National Standards for Water PT Studies. This program encompasses Uranium by EPA method 200.8 (for drinking water certification in Utah/Primary NELAP), gamma emitters , Gross Alpha/Beta , lodine-131, occurring radioactive isotopes, Strontium-89/90 , and Tritium.

ERA's Water Pollution (WP) biannual program for waste methodologies which includes parameters for both organic and inorganic analytes.

ERA's Water Supply (WS) biannual program for drinking water methodologies includes parameters for organic and inorganic analytes.

Environmental Cross-Check Program administered by Eckert & Ziegler Analytics , Inc. This program encompasses radionuclides in water, soil, milk , naturally-occurring radioactive isotopes in soil and air filters. GEL procures single-blind performance evaluation samples from Eckert & Ziegler Analytics to verify the analysis of sample matrices processed at GEL. Samples are received on a quarterly basis. GEL's Third-Party Cross-Check Program provides environmental matrices encountered in a typical nuclear utility REMP. The Third-Party Cross-Check Program is intended to meet or exceed the inter-laboratory comparison program requirements discussed in NRC Regulatory Guide 4.15. Once performance evaluation samples have been prepared in accordance with the instructions provided by the PT program provider, samples are managed and analyzed in the same manner as environmental samples from GEL's clients. C-3 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Quality Assurance Program for Internal and External Audits During each annual reporting period, at least one internal assessment of each area of the laboratory is conducted in accordance with the pre-established schedule from Standard Operating Procedure (SOP) for the Conduct of Quality Audits, GL-QS-E-001.

The annual internal audit plan is reviewed for adequacy and includes the scheduled frequency and scope of quality control actions necessary to GEL's QA program. Internal audits are conducted at least annually in accordance with a schedule approved by the Quality Systems Director. Supplier audits are contingent upon the categorization of the supplier, and may or may not be conducted prior to the use of a supplier or subcontractor. Type I suppliers and subcontractors, regardless of how they were initially qualified, are re-evaluated at least once every three years. In addition, prospective customers audit GEL during pre-contract audits. GEL hosts several external audits each year for both our clients and other programs. These programs include environmental monitoring, waste characterization, and radiobioassay. The following list of programs may audit GEL at least annually or up to every three years depending on the program:

TNI, The NELAC Institute, National Environmental Laboratory Accreditation Program (NELAP)

DOECAP, U.S. Department of Energy Consolidated Audit Program

DOELAP, U.S. Department of Energy Laboratory Accreditation Program

DOE QSAS , U.S. Department of Energy, Quality Systems for Analytical Services

ISO/IEC 17025:2005

A2LA, American Association for Laboratory Accreditation

DOD ELAP, US Department of Defense Environmental Laboratory Accreditation Program

NUPIC, Nuclear Procurement Issues Committee

SC DHEC, South Carolina Department of Health and Environmental Control The annual radiochemistry laboratory internal audit (16-RAD-001) was conducted in May, 2017. One (1) finding , six (6) observations, and five (5) recommendations resulted from this assessment.

By July , 2017, the finding was closed and appropriate laboratory staff addressed each observation and recommendation. Performance Evaluation Acceptance Criteria for Environmental Sample Analysis GEL utilized an acceptance protocol based upon two performance models. For those laboratory programs that already have established performance criteria for bias (i.e., MAPEP, and ERA/ELAP), GEL will utilize the criteria for the specific program. For intra-laboratory or third party quality control programs that do not have a specific acceptance criteria (i.e. the Eckert-Ziegler Analytics Environmental Cross-check Program), results will be evaluated in accordance with GEL's internal acceptance criteria. Performance Evaluation Samples Performance Evaluation (PE) results and internal quality control sample results are evaluated in accordance with GEL acceptance criteria. The first criterion concerns bias, which is defined as the deviation of any one result from the known value. The second criterion concerns precision , C-4 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 which deals with the ability of the measurement to be replicated by comparison of an individual resul t with the mean of all results for a given sample set. GEL also evaluates its analytical performance on a regular basis through SPC acceptance criteria.

Where feasible, this criterion is applied to both measures of precision and accuracy and is sp e cific to sample matrix. GEL establishes environmental process control limits at least annually.

For R adiochemistry analysis, QC evaluation is based on static limits rather than those that are stati s tically derived. Current process control limits are maintained in GEL's Alpha Laboratory Information Management System (LIMS). GEL also measures precision with matrix duplicates and/o r matrix spike duplicates.

The upper and lower control limits (UCL and LCL respectively) for p r ecision are plus or minus three times the standard deviation from the mean of a series of relati v e percent differences. The static precision criteria for radiochemical analyses are O -20%, for activity levels exceeding the contract required detection limit (CRDL). Quality Control Program for Environmental Sample Analysis GEL's internal QA Program is designed to include QC functions such as instrumentation calib r ation checks (to insure proper instrument response), blank samples, instrumentation back g rounds, duplicates, as well as overall staff qualification analyses and statistical process controls.

Both QC and qualification analyses samples are used to be as similar as the matrix type o f those samples submitted for analysis by the various laboratory clients. These performance test (PT) samples (or performance evaluation samples) are either actual samples submitted in duplicate in order to evaluate the precision of laboratory measurements, or fortified blan k samples, which have been given a known quantity of a radioisotope that is of interest to GEL's clients. Accuracy (or Bias) is measured through laboratory control samples and/or matrix spikes, as well as s u rrogates and internal standards.

The UCLs and LCLs for accuracy are plus or minus three time s the standard deviation from the mean of a series of recoveries.

The static limit for radiochemical analyses is 75 -125%. Specific instructions for out~of-control situations are provi d ed in the applicable analytical SOP. GEL's Laboratory Control Standard (LCS) is an aliquot of reagent water or other blank matrix to which known quantities of the method analytes are added in the laboratory. The LCS is anal y zed exactly like a sample , and its purpose is to determine whether the methodology is in control, and whether the laboratory is capable of making accurate and precise measurements. Som e methods may refer to these samples as Laboratory Fortified Blanks (LFB). The requirement for recovery is between 75 and 125% for radiological analyses excluding drinking wate r matrix. Bias (%) = (observed concentration)

100 % (known concentration)

Prec i sion is a data quality indicator of the agreement between measurements of the same prop e rty, obtained under similar conditions, and how well they conform to themselves. Prec i sion is usually expressed as standard deviation, variance or range in either absolute or relative (percentage) terms. C-5 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 GEL's laboratory duplicate (DUP or LCSD) is an aliquot of a sample taken from the same container and processed in the same manner under identical laboratory conditions.

The aliquot is analyzed independent ly from the parent sample and the results are compared to measure precision and accuracy. If a DUP is analyzed , it will be reported as Relative Percent Difference (RPO). The RPO must be 20 percent or less , if both samples are greater than five times the MDC. If both results are less than five times MDC , then the RPO must be equal to or less than 100 percent. If one result is above the MDC and the other is below the MDC , then the RPO can be calculated using the MDC for the result of the one below the MDC. The RPO must be 100% or less. In the situation where both results are above the MDC but one result is greater than five times the MDC and the other is less than five times the MDC, the RPO must be less than or equal to 20 percent. If both results are below MDC , then the limits on percent RPO are not applicable.

Difference(%)

= (high DUP result -low DUP result)

100 % (average of results) Summary of Data Results During 2017 , forty-five (45) radioisotopes associated with seven (7) matrix types were analyzed under GEL's Performance Evaluation program in participation with ERA , MAPEP, and Eckert & Ziegler Analytics. Matrix types were representative of client analyses performed during 2017. Of the four hundred sixty-two (462) total results reported, 99.4% (459 of 462) were found to be acceptable. The list below contains the type of matrix evaluated by GEL:

Air Filter

Cartridge

Water

Milk

Soil

Liquid

Vegetation A summary list of all inter-laboratory radiological proficiency test results and their evaluation against their acceptance criteria is provided in Table C-1. This list reflects GEL's participation in the MAPEP Monitoring Program , the ERA MRaD PT Program , the ERA PT Program , and the Eckert & Ziegler Analytics Environmental Cross-Check Program. Summaries of GEL's intra-laboratory test results for bias and precision by sample matrix are provided in Table C-3 (REMP Related) and Table C-4 (All Samples). Summary of Participation in the Eckert & Ziegler Analytics Environmental Cross-Check Program Eckert & Ziegler Analytics provided samples for ninety-two (92) individual environmental analyses. The accuracy of each result reported to Eckert & Ziegler Analytics, Inc. is measured by the ratio of GEL's result to the known value. All results fell within GEL's acceptance criteria (100%). Table C-2 lists the results specific to the Eckert & Ziegler Analytics sample provided in 2017. No corrective action reports were noted for these results. C-6 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Summary of Participation in the MAPEP Monitoring Program MAP E P Series 36 and 37 were analyzed by the laboratory. Of the one hundred twenty-four (124) analyses, 100% (124 out of 124) of all results fell within the PT provider's acceptance criter i a. Summary of Participation in the ERA MRaD PT Program The ERA MRad program provided samples (MRAD-26 and MRAD-27) for one hundred seven (197) individual environmental analyses. Of the one hundred ninety-seven (197) analyses, 100% (197 out of 197) fell within the PT provider's acceptance criteria.

Summary of Participation in the ERA PT Program The ERA program provided samples (RAD-108 , RAD-109 , and RAD-110) for forty-nine (49) individual environmental analyses. Of the 49 analyses, 93.9% (46 out of 49) of all results fell within the PT provider's acceptance criteria. Failures included: Gross Alpha in water and lodine-131 in water. For the corrective actions associated with these failures refer to corrective actions CARR 170227-1085 , and CARR 170828-1125 (Table C-5). Corrective Action Request and Report (CARR) There are two categories of corrective action at GEL. One is corrective action implemented at the analytical and data review level in accordance with the analytical standard operating procedures (SOP). The other is formal corrective action documented by the Quality Systems (QS) Team in accordance with GEL's SOP GL-QS-E-002. A formal corrective action is initiated whe n a nonconformance reoccurs or is so significant that permanent elimination or prevention of the problem is required.

Formal corrective action investigations include root cause analysis. GEL includes quality requirements in most analytical SOPs to ensure that data are reported only if the QC criteria are met or the QC measures that did not meet the acceptance criteria are documented. A formal corrective action is implemented according to GEL's standard operating procedure GL-QS-E-002 for Conducting Corrective/Preventive Action and Identifying Opportunities for Improvement.

Recording and documentation is performed following guidelines stated in GEL's SOP GL-QS-E-012 for Client NCR Database Operation. Any employee at GEL can identify and report a nonconformance and request that corrective action be taken. Any GEL employee can participate on a corrective action team as requested by the QS team or Group Leaders. The steps for conducting corrective action are detailed in GEL's SOP GL-QS-E-002.

In the event that correctness or validity of the laboratory's test results in doubt , the laboratory will take corrective action. If investigations show that the results have been impacted, affected clients will be informed of the issue in writing within five (5) calendar days of the discovery.

Table C-5 provides the status of CARRs for radiological performance testing during 2017. GEL has determined that causes of the failures did not impact any data reported to its clients. C-7 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Table C-1 2017 Inter-Laboratory Radiological Proficiency Testing Results and Acceptance Criteria PT Quarter I Report Sample GEL Known Acceptance Provider Year Received Sample Number Media Unit Analyte / Nuclide Value value Range/ Ratio Evaluation Date ERA 1 st/2017 2/27/17 RAD-108 Water pCi/L Bar i um-133 86.7 85.6 72.0 -94.2 Acceptable ERA 1st/201 7 2/27/17 RAD-108 Water pCi/L Cesium-134 51.2 52.6 42.4-57.9 Acceptable ERA 1 st/2017 2/27/17 RAD-108 Water pCi/L Cesium-1 3 7 118 1 1 2 101 -126 Acceptable ERA 1st/2017 2/27/17 RAD-108 Water pCi/L Cobalt-60 118 113 102 -126 Acceotable ERA 1st/2017 2/27/17 RAD-108 Water pCi/L Zinc-65 202 189 170 -222 Acceotable ERA 1st/2017 2/27/17 RAD-108 Water pCi/L Gross Alpha 71.6 52.3 27.3 -65.5 Not Acceotable ERA 1st/2017 2/27/17 RAD-108 Water pC i/L Gross Alpha 69.6 52.3 27.3 -65.5 Not Acceotable ERA 1st/2017 2/27/17 RAD-108 Water pCi/L Gross Beta 37.6 41.6 27.7 -49.0 Acceotable ERA 1st/2017 2/27/17 RAD-108 Water oCi/L Radium-226 12.3 12.7 9.48-14.7 Acceptable ERA 1st/2017 2/27/17 RAD-108 Wate r oCi/L Radium-226 13.1 12.7 9.48 -14.7 Acceptable ERA 1st/2017 2/27/17 RAD-108 Water PCi/L Radium-226 14.2 12.7 9.48 -14.7 Acceptable ERA 1st/2017 2/27/17 RAD-108 Water PCi/L Radium-228 6.31 6.2 3.83 -8.08 Acceptable ERA 1st/2017 2/27/17 RAD-108 Water pCi/L Rad i um-228 6.36 6.2 3.83 -8.08 Acceptable ERA 1st/2017 2/2 7/17 RAD-108 Wate r pCi/L Uranium (Nat) 12.2 12.6 9.91 -14.4 Acceotable ERA 1st/2017 2/27/17 RAD-108 Water µq/L Uranium (Nat) mass 19.7 18.4 14.5-21.1 Acceotable ERA 1st/2017 2/27/17 RAD-108 Water µq/L Uranium (Nat) mass 1 8.9 18.4 14.5-21.1 Acceotable ERA 1st/2017 2/27/17 RAD-108 Water pCi/L Tritium 11300 12500 1 0900 -13800 Acceotable ERA 1st/2017 2/27/17 RAD-108 Water pCi/L Tritium 11600 12500 1 0900 -13800 Acceotable ERA 1st/2017 2/27/17 RAD-108 Water pCi/L Strontium-89 60.2 55.5 44.3-63.2 Acceotable ERA 1st/2017 2/27/17 RAD-108 Water pCi/L Strontium-89 54.5 55.5 44.3-63.2 Acceotable ERA 1st/2017 2/27/17 RAD-108 Water pCi/L Strontium-90 35.9 43.1 31.8 -49.5 Acceotable ERA 1st/2017 2/27/17 RAD-108 Water pCi/L Strontium-90 37.7 43.1 31.8 -49.5 Acceotable EZA 1st/2017 07/07/17 E11818 Cartridqe pCi lodine-131 9.93E+01 9.46E+01 1.05 Acceotable EZA 1st/2017 07/07/17 E11819 Milk pCi/L Strontium-89 8.86E+0 1 9.96E+01 0.89 Acceotable EZA 1st/2017 07/07/17 E11819 Milk pCi/L Strontium-90 1.97E+01 2.55E+01 0.77 Acceptable EZA 1st/2017 07/07/17 E11820 Milk oCi/L lod i ne-131 9.57E+01 9.68E+01 0.99 Acceptable EZA 1st/2017 07/07/17 E11820 Milk pCi/L Cer i um-141 1.21 E+02 1.19E+02 1.02 Acceotable EZA 1st/2017 07/07/17 E11820 Milk pCi/L Chromium-51 1.76E+02 2.12E+02 0.83 Acceotable EZA 1st/2017 07/07/17 E11820 Milk PCi/L Cesium-134 1.71E+02 1.89E+02 0.9 Acceptable EZA 1st/2017 07/07/17 E 1 1820 Milk oCi/L Cesium-137 2.31E+02 2.27E+02 1.02 Acceotable C-8 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 PT Quarter I Report Sample GEL Known Acceptance Provider Year Received Sample Number Media Unit Analyte I Nuclide Value value Range/ Ratio Evaluation Date EZA 1 s t/2017 07/07/17 E 1 1 820 Milk pCi/L Co b al t-58 1.89E+02 1.78E+02 1.06 Acceptable EZA 1st/2017 07/07/17 E11820 Milk PCi/L Manoanese-54 2.7 4E+02 2.49E+02 1.1 Acceptable EZA 1st/2017 07/07/17 E 11820 Milk pCi/L lron-59 1.35E+02 1.27E+02 1.06 Acceotable EZA 1st/2017 07/07/17 E11820 Milk pCi/L Zinc-65 3.22E+02 2.96E+02 1.09 Acceptable EZA 1st/2017 07/07/17 E11820 Milk pCi/L Coba lt-6 0 2.85E+02 2.93E+02 0.97 Acceotable EZA 1st/2017 07/07/17 E 11821 Water pCi/L lodine-131 9.68E+01 8.79E+01

1.1 Acceptable

EZA 1st/2017 07/07/17 E11821 Water pCi/L Cerium-141 1.24E+02 1.19 E+02 1.05 Acceotable EZA 1 st/2017 0 7/07/17 E11821 Water pC i/L Chromium-51 2.43E+02 2.11 E+02 1.15 Acceptable EZA 1st/2017 07/07/17 E11821 Water pCi/L Cesium-134 1.84E+02 1.88E+02 0.98 Acceotable EZA 1st/2017 07/07/17 E11821 Water pCi/L Cesium-137 2.49E+02 2.26E+02 1.1 Acceptable EZA 1st/2017 07/07/17 E11821 Water oCi/L Coba lt-58 1.88E+02 1.77E+02 1.06 Acceptable EZA 1st/2017 07/07/17 E11821 Water pCi/L Manqanese-54 2.79E+02 2.48E+02 1.13 Acceptable EZA 1st/2017 07/07/17 E1 1821 Water pCi/L lron-59 1.46 E+02 1.2 7 E+02 1.15 Acceptable EZA 1st/2017 07/07/17 E11821 Water pCi/L Zinc-65 3.36E+02 2.9 5E+02 1.14 Acceptable EZA 1st/2017 0 7/07/17 E11821 Water pCi/L Cobalt-60 3.07E+02 2.92 E+02 1.05 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaS36 Soil Bq/Kg Americium-241 65.7 67.0 46.9-87.1 Acceotable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaS36 Soil Bo/Ko Cesium-134 1470 15 50 1085-2015 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaS36 So il Bo/K o Cesium-137 679 611 428-794 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaS36 Soil Bq/Kq Cobalt-57 0.812 Fa lse Pos Test* Acceotable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaS36 Soil Bo/Ko Cobalt-60 958 891 624-1158 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaS36 Soil Bq/Kg lron-55 804 812 568-1056 Acceotable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaS36 So il Bo/Ko Manoanese-54 1080 967 677-1257 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaS36 Soil Bq/Kq Nickel-63

-46 False Pos Test Acceotable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaS36 Soil Bo/Ko P lut onium-238 0.574 0.41 Sens. Eva!.** Acceptab le MAPEP 2nd/20 17 06/13/17 MAPEP-17-MaS36 Soil Bq/Kg Pluton ium-239/240 51.2 59.8 41.9-77.7 Acceotable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaS36 Soil Bo/Ko Potassium-40 624 607 425-789 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaS36 Soil Bq/Kq Stront i um-90 548 624 437-811 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaS36 Soil Bo/Ko Technetium-99 641 656 459-853 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaS36 Soil Bo/Kq U-234/2 33 56.9 48.1 33.7-62.5 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaS36 So i l Bo/Ko Uranium-238 53.9 48.8 34.2-63.7 Acceotable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaS36 So il Bq/Kq Zinc-65 -4.0 False Pos Test Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaW36 Water Bo l l Americium-241 0.8070 0.846 0.592-1.1 Acceotable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaW36 Water Bq/L Cesium-134 0.037 False Pos Test Acceotab le MAPEP 2nd/2017 06/13/17 MAPEP-17-MaW36 Water Bo/L Cesium-137 12.2 11.1 7.8-14.4 Acceptable C-9 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 PT Quarter I Report Sample GEL Known Acceptance Provider Year Received Sample Number Media Unit Analyte / Nuclide Value value Range/ Ratio Evaluation Date MAPEP 2nd/2017 06/13/17 MAPEP-17-MaW36 Water Ba/L Cobalt-57 29.0 28.5 20.0-37.1 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaW36 Water Ba/L Cobalt-60 12.8 12.3 8.6-16.0 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaW36 Water Ba/L Hvdroaen-3 245 249 174-324 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaW36 Water Bq/L lron-55 2.01 1.7 Sens. Eval. Acceptable MAPEP 2nd/2017 06/1 3/17 MAPEP-17-MaW36 Water Ba/L Manaanese-54 15.7 1 4.9 10.4-19.4 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaW36 Water Bq/L N i ckel-63 13.6 12.2 8.5-15.9 Acceptable MAPEP 2nd/2 017 06/13/17 MAPEP-17-MaW36 Wate r Bq/L Pluton i um-238 0.635 0.703 0.492-0.914 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaW36 Water Bq/L Plutonium-239/240 0.841 0.934 0.654-1.21 4 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaW36 Water Bq/L Potassium-40 276 254 178-330 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaW36 Water Bq/L Radium-226 0.443 0.504 0.353-0.655 Acceptable MAPEP 2nd/2017 06/1 3/17 MAPEP-17-MaW36 Water Bq/L St r ontium-90 9.27 10.1 7.1-13.1 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaW36 Water Bq/L Technetium-99 5.81 6.25 4.38-8.13 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaW36 Water Ba/L Uranium-234/233 1.11 1.16 0.81-1.51 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaW36 Water Ba/L Uranium-238 1.16 1.20 0.84-1.56 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-MaW36 Water Bq/L Zinc-65 -0.0504 False Pos Test Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-XaW36 Water Bq/L lodine-129 0.01 False Pos Test Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdF36 Filter ug/sample Uran i um-235 0.058 0.0623 0.0436-0.0810 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdF36 Filter ug/s ample Uranium-238 8.49 8.6 6.0-11.2 Acceptable MAPEP 2nd/2017 06/13/1 7 MAPEP-17-RdF36 Filter ug/sample Uranium-Total 8.55 8.7 6.1-11.3 Acceptable MAPEP 2nd/20 17 06/13/17 MAPEP-17-RdF36 Filter Sq/sample Americium-241 0.0386 0.0376

0. 0263-0. 0489 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdF36 Filter Ba/sample Cesium-134 1.38 1.42 0.99-1.8 5 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdF36 Filter Sq/sample Cesium-137 0.781 0.685 0.480-0.891 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdF36 Filte r Sq/sample Cobalt-57 1.77 1.70 1.19-2.21 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdF36 F ilter Sq/sample Cobalt-60 0.863 0.78 0.55-1.01 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdF36 F i lter Sq/sample Manganese-54

-0.0344 False Pos Test Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdF36 Filter Ba/sample Plutonium-238 0.0539 0.0598 0.0419-0.0777 Acceptable MAPEP 2nd/2017 06/13/1 7 MAPEP-17-RdF36 Filter Sq/sample Plutonium-239/240 0.0419 0.046 0.0322-0.0598 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdF36 Filter Sq/sample Strontium-90 0.5 43 0.651 0.456-0.846 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdF36 Filter Ba/sample Uranium-234/233 0.105 0.1 04 0.073-0.135 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdF36 Fi lter Sq/sam ple Uranium-238 0.106 0.1 07 0.075-0.139 Acceptable MAPEP 2nd/2017 06/1 3/17 MAPEP-17-RdF36 Filter Sq/sample Zinc-65 1.34 1.29 0.9-1.68 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdV36 Veaetation Ba/samp l e Ame ri cium-241 0.000411 False Pos Test Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdV36 Vegetation Ba/samole Cesium-134 6.56 6.95 4.87-9.04 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdV36 Vegetation Sq/sample Ces i um-137 4.84 4.60 3.22-5.98 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdV36 Vegetation Sq/sample Cobalt-57 0.0141 False Pos Test Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdV36 Veaetation Sq/sample Cobalt-60 9.35 8.75 6.13-11.38 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdV36 Veaetat ion Ba/sample Manaanese-54 3.39 3.2 8 2.3-4.26 Acceptable C-10 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 PT Quarter I Report Sample GEL Known Acceptance Provider Year Received Sample Number Media Unit Analyte / Nuclide Value value Range/ Ratio Evaluation Date MAPEP 2nd/2017 06/13/17 MAPEP-17-RdV36 Veqetation Sq/sample Plutonium-238 0.0506 0.0598 0.0419-0.0 777 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdV36 Veqetation Sq/sample Plutonium-239/240 0.0754 0.089 0.062-0.166 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdV36 Vegetation Sa/samole Strontium-90 1.50 1.75 1.23-2.28 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdV36 Veqetation Sq/sample Uranium-234

/233 0.1 9 0.1 79 0.1 25-0.233 Acceptable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdV36 Veqetation Sq/sample Uranium-238 1.930 0.186 0.130-0.242 Acceotable MAPEP 2nd/2017 06/13/17 MAPEP-17-RdV36 Vegetation Sq/sample Zinc-65 6.26 5.39 3.77-7.01 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 So il pCi/k q Ac ti nium-228 1240 1240 795 -1720 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 So il PCi/k q Amer ici um-241 480 448 262 -582 Acceotable ERA 2nd/2 017 05/23/17 MRAD-26 Soil pCi/kg Sismuth-212 929 1240 330 -1820 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Soil pCi/kq Sismuth-214 2790 2750 1660 -3960 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Soil oCi/ka Cesium-134 8660 8860 5790 -10600 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Soil pCi/kq Cesium-137 8300 7500 5750 -9650 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Soil pCi/k q Cobalt-60 4620 4430 3000 -6100 Acceotable ERA 2nd/2017 05/23/17 MRAD-26 Soil pCi/kg Lead-212 1300 124 0 812 -1730 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Soil pCi/kq Lead-214 3170 2890 1690 -4310 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Soil pCi/kq Manqanese-54

<38.6 <1000 0.00 -1000 Acceotable ERA 2nd/2017 05/23/17 MRAD-26 Soil oCi/ka Plutonium-238 494 648 390 -894 Acceptable ERA 2nd/2017 05/2 3/17 MRAD-26 Soil pCi/kg Plutonium-239 442 484 316 -669 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Soil pCi/k q Potass i um-40 11 000 10600 7740 -14200 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Soil pCi/k q Strontium-90 6150 9150 3490 -14500 Acceotable ERA 2nd/2017 05/23/17 MRAD-26 Soil pCi/kg Thorium-234 3360 1940 614 -3650 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Soil pC i/k g Uran i um-234 1820 1950 1190 -2500 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Soil pCi/k q Uran i um-234 2030 1950 1190 -2500 Acceotable ERA 2nd/2017 05/23/17 MRAD-26 Soil pCi/kg Uranium-234 2410 1950 1190 -2500 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Soil pCi/kq Uran iu m-238 1800 1940 1200 -2460 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Soil pCi/k q Uranium-238 1970 1940 1200 -2460 Acceptable ERA 2nd/201 7 05/23/17 MRAD-26 Soil pCi/kg Uran i um-238 1450 1940 1200 -2460 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Soil pCi/kq Uranium-Total 3540 3980 2160 -5250 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Soil oCi/ka Uranium-Total 3750 3980 2160 -5250 Acceptable ERA 2nd/2017 05/2 3/17 MRAD-26 Soil pCi/kq Uranium-Total 4090 3980 2160 -5250 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Soil µq/kq Uranium-Total 3860 3980 2160 -5250 Acceptable ERA 2nd/2017 05/23/1 7 MRAD-26 Soil µg/kg Uranium-Total (mass) 5280 5800 3200 -7290 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Soil µq/kq Uranium-Total (mass) 5420 5800 3200 -7290 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Soil µg/kg Uranium-Total (mass) 5900 5800 3200 -7290 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Soil µq/kq Uranium-Total (mass) 4440 5800 3200 -7290 Acceptable ERA 2nd/20 17 05/23/17 MRAD-26 Soil oCi/kq Zinc-65 7020 6090 4850 -8090 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Vegetation pCi/kg Americium-241 1700 1860 1140 -2470 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Veqetation pCi/kq Cesium-134 1660 1830 1180 -2380 Acceotable ERA 2nd/2017 05/23/17 MRAD-26 Veaetation pCi/kq Cesium-137 2470 2500 1810 -3480 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Vegetation oCi/ka Cobalt-60 1350 1390 959 -1940 Acceptable C-11 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 PT Quarter I Report Sample GEL Known Acceptance Received Sample Number Unit Analyte / Nuclide Evaluation Provider Year Date Media Value value Range/ Ratio ERA 2nd/2017 05/23/17 MRAD-26 Vegetation pCi/kg Curium-24 4 629 734 360 -1140 Acceptable ERA 2nd/2 017 05/23/17 MRAD-26 Vege tati on pCi/kq Manaanese-54

<32.2 <3 00 0.0 0 -300 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Veaetation pCi/kg Plutonium-238 2880 3250 1940 -4450 Acceptable ERA 2nd/2017 05/23/1 7 MRAD-26 Vegetation pCi/kq Plutonium-239 1990 2150 1320 -2960 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Veoetation PCi/ka Potassium-40 30900 30900 22300 -43400 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Vegetation pCi/kg Stront ium-90 701 726 414 -963 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Vegetation pCi/kq Uranium-234 2720 3090 2030 -3970 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Veaetation pCi/kg Uranium-234 3080 3090 2030 -3970 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Vegetation pCi/kg Uranium-238 2820 3060 2040 -3890 Acceptab le ERA 2nd/2017 05/23/17 MRAD-26 Veoetation pCi/ko U r anium-238 3020 3060 2040 -3890 Acceptab le ERA 2nd/2017 05/23/17 MRAD-26 Vegetation pC i/k g Uranium-Total 5970 6290 4260 -7830 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Vegetation pCi/kg Uranium-Total 5690 6290 4260 -7830 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Veaetation PC i/k a Uran ium-Tota l 6238 6290 4260 -7830 Acce pt able ERA 2nd/20 17 05/23/17 MRAD-26 Vegetation

µg/k g Uranium-Total (mas s) 8910 9250 6200 -11700 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Vegetation

µg/kg Uran iu m-To tal (mas s) 8440 9250 6200 -11700 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Veaetation ua/ka Uranium-Total (mass) 9030 9250 6200 -11700 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Vegetation pCi/kg Zinc-65 907 853 615 -1200 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Fi lter pCi/Filter Amer i cium-241 80.6 76.4 47.1 -103 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Filter pCi/Filter Ces ium-134 1140 1100 700 -1360 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Filte r pCi/Filter Cesium-137 1490 1390 1040 -1830 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Filter pCi/Filter Cobalt-60 1120 1030 797 -1290 Acceptable ERA 2nd/2017 05/23/17 MRAD-2 6 Filter pCi/Filter lron-55 242 256 79.4 -500 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 F ilter pCi/Filter Manganese-54

<7.53 <50.0 0.00 -50.0 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Filter pCi/Filter Plutonium-2 38 54.1 54.3 37.2 -71.4 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Filter pCi/Filter Plutonium-239 58.2 62 44.9 -81.0 Acceptable ERA 2nd/2017 05/23/17 MRA D-26 Filter pCi/Filter Stront i um-90 52.2 52.4 25.6 -78.5 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 F i lter pCi/Filter Uranium-234 71.1 73.1 45.3-110 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Filter PCi/Filter Uranium-234 79 73.1 45.3-110 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 F i lter pCi/Filter Uranium-238 70.7 72.4 46.8 -100 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Filter pCi/Filter Uranium-238 77.1 72.4 46.8 -100 Acceptable ERA 2nd/2 01 7 05/23/17 MRAD-26 Filter pCi/F ilter Uranium-Total 154 149 82.5 -227 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Filter pCi/Filter Uranium-Total 145 149 82.5 -227 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Filter pCi/Filter Uranium-Total 159.5 149 82.5 -227 Acceptable ERA 2nd/20 17 05/23/17 MRAD-26 Filter µg/Filter Uranium-Total (mas s) 230 217 139 -306 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Filter µg/F ilter Uranium-Total (mas s) 212 217 139 -306 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Filter µg/Filter Uranium-Total (mass) 231 217 139 -306 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Filter pCi/Filter Zinc-65 1160 984 705 -1360 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Filter pCi/Filter Gross Alpha 112 85.5 28.6-133 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Filter pCi/Filter Gross Beta 54.9 45.2 28.6 -65.9 Acceptable ERA 2nd/2017 05/23/1 7 MRAD-26 Water pCi/L Americium-241 150 140 94.3 -188 Acceptable C-12 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 PT Quarter I Report Sample GEL Known Acceptance Provider Year Received Sample Number Media Unit Analyte / Nuclide Value value Range/ Ratio Evaluation Date ERA 2nd/2017 05/23/17 MRAD-26 Water oCi/L Cesium-1 34 2380 25 1 0 1840 -2880 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Water pCi/L Cesium-137 1480 1400 1190 -1680 Acceotable ERA 2nd/2017 05/23/17 MRAD-26 Water pCi/L Cobalt-60 2570 2540 2210 -2970 Acceptable ERA 2nd/2 017 05/23/17 MRAD-26 Water oCi/L lron-55 923 984 587 -1340 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Water oCi/L Manaanese-54

<6.36 <100 0.00-10 0 Acceotable ERA 2nd/2017 05/23/17 MRAD-26 Water pCi/L Plutonium-238 108 128 94.7 -159 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Water oCi/L Plutonium-239 73.3 85.8 66.6-108 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Water pCi/L Strontium-90 685 714 465 -944 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Water pCi/L Uran i um-234 82.1 90.3 67.8 -116 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Water oCi/L Uran i um-234 92 90.3 67.8 -116 Acceotable ERA 2nd/2017 05/23/17 MRAD-26 Water pCi/L Uran i um-234 87.1 90.3 67.8-116 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Water oCi/L Uran ium-238 86.7 89.5 68.2 -110 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Water pCi/L Uran i um-238 84.1 89.5 68.2-110 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Water pCi/L Uran i um-238 98 89.5 68.2-110 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Water oCi/L Uranium-Total 181 184 135 -238 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Water oCi/L Uranium-Total 173 184 135 -238 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Water pCi/L Uranium-Total 180 184 135 -238 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Water oCi/L Uranium-Total 185 184 135 -238 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Water ua/L Uran i um-Total (mass) 270 268 214-324 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Water µg/L Uranium-Total (m ass) 260 268 214 -324 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Water ua/L Uranium-Total (m ass) 252 268 2 14 -324 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Water ua/L Uranium-Total (mass) 276 268 214-324 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Water pCi/L Zinc-65 2160 1960 1630 -2470 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Water pCi/L Gross Alpha 125 89.5 31.8-139 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Water oCi/L Gross Be ta 59.6 61 34.9 -90.4 Acceptable ERA 2nd/2017 05/23/17 MRAD-26 Water pCi/L Tritium 18900 19400 13000

-27700 Acceptable ERA 2nd/2017 05/30/17 RAD-109 Water pCi/L Gross Alpha 79.7 75 39.5 -92.3 Acceptable ERA 2nd/2017 05/30/17 RAD-109 Water oCi/L Gross Aloha 72.9 75 39.5 -92.3 Acceptable ERA 2nd/2017 05/30/17 RAD-109 Water pCi/L Gross Alpha 72.9 75 39.5 -92.3 Acceptab l e EZA 2nd/2017 08/02/17 E11873 Cartr i dae oCi lod i ne-131 8.65E+01 8.46E+01 1.02 Acceotable EZA 2nd/2017 08/02/17 E11874 Milk pCi/L Strontium-89 8.88E+01 9.26E+01 0.96 Acceptable EZA 2nd/2017 08/02/17 E 11874 Milk pCi/L Stront ium-90 9.50E+OO 1.35 E+0 1 0.71 Acceptable EZA 2nd/2017 08/02/17 E 11875 Milk pCi/L Cerium-141 1.62E+02 1.51 E+02 1.07 Acceptable EZA 2nd/2017 08/02/17 E11875 Milk pCi/L Cobalt-58 1.53E+02 1.55E+02 0.98 Acceptable EZA 2nd/2017 08/02/17 E11875 Milk oCi/L Cobalt-60 2.07E+02 1.91 E+02 1.08 Acceptable EZA 2nd/2 017 08/02/17 E1 187 5 Milk pC i/L Chromium-5 1 3.65E+02 3.15E+02 1.16 Acceptable EZA 2nd/2017 08/02/17 E11875 Milk pC i/L Cesium-134 1.74E+02 1.88 E+02 0.92 Acceptab l e EZA 2nd/2017 08/02/17 E11875 Milk oCi/L Cesium-137 1.57E+02 1.50E+02 1.05 Acceptab le EZA 2nd/2017 08/02/17 E11875 Milk oCi/L lron-59 1.28E+02 1.15 E+02 1.11 Acceptable EZA 2nd/2017 08/02/17 E11875 Milk pCi/L lodine-131 9.93E+01 9.36E+01 1.06 Acceptab l e C-13 D o nald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 PT Quarter I Report Sample GEL Known Acceptance Received Sample Number Unit Analyte I Nuclide Evaluation Provider Year Date Media Value value Range/ Ratio EZA 2nd/2017 08/02/17 E11875 Milk oCi/L Manganese-54 1.95E+02 1.72E+02 1.14 Acceptable EZA 2nd/2017 08/02/17 E11875 Milk pCi/L Z inc-65 2.18E+02 2.04E+02 1.07 Acceptable EZA 2nd/2017 08/0 2/17 E11876 Water oCi/L Cerium-141 2.09E+02 1.99E+02 1.05 Acceotable EZA 2nd/2017 08/02/17 E11876 Water oCi/L Cobalt-58 2.11E+02 2.04E+02 1.04 Acceptable EZA 2nd/2017 08/02/17 E11876 Water pCi/L Cobalt-60 2.57 E+02 2.5 0E+02 1.03 Acceptable EZA 2nd/2017 08/02/17 E11876 Water oCi/L Chrom ium-51 4.4 1 E+02 4.1 3E+02 1.07 Acceotable EZA 2nd/2017 08/02/17 E11876 Water pCi/L Ces i um-134 2.38E+02 2.47E+02 0.96 Acceptable EZA 2nd/2017 08/02/17 E11876 Water pCi/L Ces iu m-1 37 2.20E+02 1.97E+02 1.12 Acceptable EZA 2nd/2017 08/02/17 E11876 Water oCi/L lron-59 1.64E+02 1.51E+02 1.09 Acceptable EZA 2nd/2017 08/02/17 E11876 Water pCi/L lodine-131 8.69E+01 8.12E+01 1.07 Acceptable EZA 2nd/2017 08/02/17 E11876 Water oC i/L Manoanese-54 2.43E+02 2.25E+02 1.08 Acceptable EZA 2nd/2017 08/02/17 E11876 Water pCi/L Zinc-65 2.95E+02 2.67E+02 1.1 0 Acceptable ERA 3rd/ 20 17 08/28/17 RAD-110 Water pCi/L Barium-133 68.8 66.3 55.2 -72.9 Acceptable ERA 3rd/2017 08/28/17 RAD -110 Water o C i/L Cesium-134 24.7 24.4 18.7-27.2 Acceptable ERA 3rd/2017 08/28/17 RAD -110 Water oCi/L Cesium-1 37 51.7 51.6 46.4 -59.6 Acceptable ERA 3rd/2017 08/28/17 RAD -110 Water pC i/L Coba l t-60 97 88.6 79.7 -99.8 Acceptable ERA 3rd/ 2017 08/2 8/17 RAD -110 Water oCi/L Z in c-65 39.7 32.7 27.3-41.6 Acceotable ERA 3rd/ 2017 08/28/17 RAD -11 0 Water oCi/L Gross Aloha 26.3 25.7 13.0 -34.1 Acceptable ERA 3rd/2017 08/28/17 RAD -11 0 Water pCi/L Gross Alpha 3 1.9 25.7 13.0 -34.1 Acceptab l e ERA 3rd/ 2017 08/28/17 RAD -110 Wate r pCi/L Gross Beta 54.4 63 43.5 -69.6 Acceotable ERA 3rd/ 2017 08/28/17 RAD -110 Water oC i/L Rad ium-226 1.6 1.29 1.07-1.95 Acceptable ERA 3rd/ 2017 08/28/17 RAD -110 Water pCi/L Radium-226 1.21 1.29 1.07 -1 95 Acceptable ERA 3rd/ 2017 08/28/17 RAD -110 Water pC i/L Radium-228 6.49 5.66 3.45 -7.47 Acceptable ERA 3rd/ 2017 08/28/17 RAD -110 Water oC i/L Radium-228 5.59 5.6 6 3.45 -7.47 Acceptable ERA 3rd/ 2017 08/28/17 RAD -11 0 Water pC i/L Uranium (Nat) 65 66.7 54.3-73.9 Acceptable ERA 3rd/ 2017 08/28/17 RAD-110 Water oCi/L Uranium (Natl 66.2 66.7 54.3 -73.9 Acceptable ERA 3rd/ 2017 08/28/17 RAD -110 Water µg/L Uran i um (Nat) mass 97 98.1 79.8 -109 Acceptable ERA 3rd/ 20 17 08/28/17 RAD -110 Water µq/L Uranium (Na t) mass 104.7 98.1 79.8-109 Acceotable ERA 3rd/ 2017 08/28/17 RAD -110 Water oC i/L Tritium 5120 5060 4340 -5570 Acceptable ERA 3rd/20 17 08/28/17 RAD -110 Water pCi/L Tritium 4620 5060 4340 -5570 Acceptable ERA 3rd/20 17 08/28/17 RAD -110 Water oCi/L S t rontium-89 29.9 26.4 18.4 -32.9 Acceptable ERA 3rd/2017 08/28/17 RAD -110 Water pCi/L Strontium-89 28.2 26.4 18.4 -32.9 Acceptable ERA 3rd/ 2017 08/28/1 7 RAD -110 Water pCi/L Strontium-90 37.8 36 26.4-41.5 Acceotable ERA 3rd/ 2017 08/28/17 RAD -110 Water oCi/L Strontium-90 34 36 26.4-41.5 Acceptable ERA 3rd/ 2017 08/28/17 RAD -110 Wate r oCi/L lodine-131 28 25.5 21.2-30.1 Acceptab l e ERA 3rd/ 2017 08/28/17 RAD -110 Water pCi/L lodine-131 33 25.5 21.2-30.1 Not Acceptable EZA 3rd/2017 11/10/17 E1 19 26 Cartr i dge pCi lodine-131 6.30E+01 6.48E+01 0.97 Acceptable EZA 3rd/2017 11/10/17 E11927 Milk pCi/L Strontium-89 7.50E+01 8.27E+01 0.91 Acceotable EZA 3rd/2017 1 1 /10/17 E11927 Milk oCi/L Strontium-90 1.01 E+01 1.21 E+01 0.84 Acceptab l e EZA 3rd/2017 11/1 0/17 E11928 Milk oCi/L lodine-131 7.35E+01 7.1 OE+01 1.04 Acceptab l e C-14 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 PT Quarter I Report Sample GEL Known Acceptance Provider Year Received Sample Number Media Unit Analyte / Nuclide Value value Range/ Ratio Evaluation Date EZA 3 r d/2017 11/1 0/1 7 E 11 92 8 M ilk p C i/L Ce r i u m-14 1 8.3 1 E+01 8.70E+0 1 0.9 5 Acceptab l e EZA 3rd/201 7 11/1 0/17 E 1 1 9 2 8 M ilk pC i/L Chrom i um-5 1 2.3 7 E+02 2.17 E+02 0.9 2 Acceptable EZA 3rd/20 17 11/1 0/1 7 E 1 192 8 Mil k pC i/L Cesium-1 3 4 1.8 5E+02 2.01 E+02 0.92 Acceptable EZA 3rd/2017 11/10/17 E 1 1928 Mil k pC i/L Cesium-137 1.67E+02 1.72E+02 0.97 Acceptable EZA 3rd/2017 1 1/10/17 E11928 Milk pC i/L Cobalt-58 1.21 E+02 1.17E+02 1.03 Acceptable EZA 3rd/2017 11/10/1 7 E1192 8 Mi lk pC i/L Manqanese-5 4 1.2 8 E+02 1.23E+02 1.04 Acceptable EZA 3rd/201 7 1 1/1 0/17 E1192 8 Mil k pCi/L lron-59 1.56E+02 1.25E+02 1.24 Acceptable EZA 3rd/2017 1 1/10/17 E11928 Mil k pC i/L Zinc-65 1.97E+02 1.84E+02 1.07 Acceptable EZA 3rd/2017 11/10

/17 E11928 Milk pCi/L Cobalt-60 2.59E+02 2.62E+02 0.99 Acceptable EZA 3rd/2017 1 1/10/17 E1192 9 Water pCi/L lodine-1 31 8.08E+01 7.92E+01 1.02 Acceptable EZA 3rd/2017 11/10/17 E11929 Water pCi/L Cerium-141 1.09E+02 9.95E+01 1.1 Acceptable EZA 3rd/2017 1 1/10/17 E11929 Water pCi/L Chromium-51 2.47E+02 2.48E+02 1 Acceptable EZA 3rd/2017 1 1/10/17 E11929 Wa t er pCi/L Cesium-134 2.06E+02 2.29E+02 0.9 Acceptable EZA 3rd/2017 1 1/10/17 E 11 929 Wate r pCi/L Ces i um-13 7 2.00E+02 1.96E+02 1 02 Acceptable EZA 3rd/20 1 7 11/10/17 E11929 Wate r pCi/L Cobalt-58 1.41 E+02 1.34E+02 1.05 Acceptable EZA 3rd/2017 11/10/17 E11929 Water PCi/L Manaanese-54 1.50E+02 1.40E+02 1.07 Acceptable EZA 3rd/20 1 7 11/10/17 E1 1 929 Water pCi/L lron-59 1.58E+02 1.43E+02 1.10 Acceptab l e EZA 3 rd/20 17 1 1/10/17 E1 1 929 Wate r pCi/L Z i nc-6 5 2.37 E+02 2.10E+02 1.13 Acceptab l e EZA 3rd/20 1 7 11/10/17 E1 1 929 Wate r pC i/L Coba l t-60 3.1 8E+02 2.99E+02 1.06 Acceptab l e MAPEP 4th/20 17 12/01/1 7 MAPEP-1 7-MaS3 7 Soil Bq/Kg Ame ri cium-24 1 63.1 59 4 1.2-76.4 Acceptable MAPEP 4th/20 1 7 12/0 1/17 MAPEP-1 7-MaS37 So il Bq/Kq Ces i um-1 34 414.00 448 3 1 4-582 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-1 7-MaS3 7 Soil Ba/Ka Ces i um-137 772 7 22 505-939 Acceptable MAPEP 4th/20 17 12/0 1/17 MAPEP-17-MaS 37 So i l Bq/Kg Cobalt-57 1 500 1 4 58 1021-1895 Acceptable MAPEP 4th/20 1 7 12/0 1/17 MAPEP-17-MaS37 So i l Bq/Kq Cobalt-60 0.1 79 0 Fa l se Pas Test Acceptable MAPEP 4th/20 1 7 1 2/0 1/17 MAPEP-1 7-MaS37 So i l Ba/Ka lron-55 933 1 010 707-1313 Acceptable MAPEP 4th/20 1 7 1 2/0 1/17 MAPEP-17-MaS 3 7 So i l Bq/Kg Manganese-54 89 4.00 8 25 578-1 07 3 Acceptable MAPEP 4th/2017 1 2/0 1/17 MAPEP-1 7-MaS 37 So i l Bq/Kq Nic k el-6 3 1 240 1 220 854-1586 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-MaS37 Soil Ba/Ka Plutonium-238 85.8 92.0 64-120 Acceptable MAPEP 4 t h/2017 1 2/01/17 MAPEP-17-MaS 3 7 Soil Bq/Kq Pluton i um-239/240 64.9 68.8 48.2-89.4 Acceptable MAPEP 4th/2017 1 2/01/17 MAPEP-17-MaS3 7 Soil Ba/Ka Potassium-40 63 1 592 414-770 Acceptable MAPEP 4 t h/2017 1 2/01/17 MAPEP-17-MaS 37 Soil Bq/Kg Strontium-90 240 289 202-3 76 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-MaS37 Soil Bq/Kq Technet i um-99 1 170 1 1 95 837-1554 Acceptable MAPEP 4th/2017 12/01 /17 MAPEP-17-MaS37 Soil Bq/Kg U-234/233 72 69 48-90 Acceptable MAPEP 4th/2017 12/01 /17 MAPEP-17-MaS37 Soil Bq/Kq Uranium-238 209 219 153-285 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-MaS3 7 Soi l Ba/Ka Z i nc-65 6 3 3.0 559 391-727 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-MaW37 Water Bq/L Amer i c i um-24 1 0.874 0.892 0.624-1.160 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-MaW37 Water Bq/L Ces i um-134 10.50 11.5 8.1-15.0 Acceptable MAPEP 4th/20 1 7 12/01/17 MAPEP-1 7-MaW3 7 Water Ba/L Ces i um-1 37 16.800 16.3 1 1.2-21.2 Acceptable MAPEP 4th/20 1 7 12/01/1 7 MAPEP-17-MaW37 Water Ba/L Cobalt-5 7 12.1 12.1 8.5-15.7 Acceptable MAPEP 4th/2017 12/0 1/17 MAPEP-17-MaW37 Water Bq/L Cobalt-60 10.800 1 0.7 7.5-13.9 Acceptable C-15 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 PT Quarter I Report Sample GEL Known Acceptance Provider Year Received Sample Number Media Unit Analyte / Nuclide Value value Range/ Ratio Evaluation Date MAPEP 4th/2017 12/01/17 MAPEP-17-MaW37 Wa t er Bq/L Hvdrooen-3 250 258 181-335 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-MaW37 Water Bq/L lron-55 20.1 19.4 13.6-25.2 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-MaW37 Water Bq/L Manqanese-54 15.5 14.9 1 0.4-19.4 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-MaW37 Water Bo/L Nickel-63 0.764 0 False Pos Test Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-MaW37 Water Bq/L Pluton i um-238 0.528 0.60 0.422-0. 784 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-MaW37 Water Bq/L Pluton ium-239/24 0 0.654 0.781 0.547-1.015 Acceptab l e MAPEP 4th/2017 12/01/17 MAPEP-17-MaW37 Water Bo/L Potassium-40

-1.2 0 False Pos Test Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-MaW37 Water Bq/L Radium-226 0.774 0.86 0.601-1.115 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-MaW37 Water Bq/L Strontium-90 7.04 8 5.44-10.10 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-MaW37 Water Bq/L Technetium-99 6.41 6.73 4.71-8.75 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-MaW37 Water Bq/L Uranium-234/233 1.09 1.01 0.71-1.31 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-MaW3 7 Water Bo/L Uranium-238 1.140 1.040 0.73-1.35 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-MaW37 Water Bq/L Zinc-65 17.3 15.5 10.9 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-XaW37 Alk. Water Bq/L lodine-129 2.590 2.310 1.62-3.00 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-RdF37 Filter uq/sample Uranium-235 0.0521 0.0507 0. 0355-0. 0659 Accept a ble MAPEP 4th/2017 12/01/17 MAPEP-17-RdF37 Filter ug/sample Uran i um-238 7.8 7.0 4.90-9.10 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-RdF37 F ilt er uq/sample Uranium-Total 7.84 7.05 4.94-9.17 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-RdF37 Filter Bo/sample Americium-241 0.053300 0 0.0458-0.0796 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-RdF37 Filter Sq/sample Cesium-134 1.0300 1.00 0.7-1.30 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-RdF37 Filter Sq/sample Cesium-137 0.88 0.82 0.57-1.07 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-RdF37 Filter Bo/sample Cobalt-57 0.01 0.00 Fa l se Pos Test Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-RdF37 Filter Sq/sample Cobalt-60 0.75 0.68 0.48-0.88 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-RdF37 Filter Sq/sample Manqanese-54 1.48 1.30 0.91-1.69 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-RdF37 F i lter Bo/sample Pluton i um-238 0.0257 0.0298 0.0209-0.0387 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-RdF37 F i lter Sq/sample Plutonium-239

/240 0.0408 0.0468 0.0328-0.0608 Acceptable MA P EP 4th/2017 12/01/17 MAPEP-17-RdF37 F i lter Sq/sam p le Strontium-90 0.608 0.801 0.561-1.041 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-RdF37 Filter Bo/sample Uranium-234/233 0.086 0.084 0.059-0.109 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-RdF37 Filter Sq/sample U r an ium-238 0.093 0.087 0.061-0.113 Acceptab l e MAPEP 4th/2017 12/01/17 MAPEP-17-RdF37 F ilter Bo/samp le Zinc-65 1.2500 1.08 0.76-1.40 Acceptable MAPEP 4th/2017 1 2/01/17 MAPEP-17-RdV37 Vegetation Sq/sample Americ i um-24 1 0.080 0.077 0.054-0.1 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-RdV37 Veqetation Sq/sample Cesium-134 2.30 2.32 1.62-3.02 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-RdV37 Veoetation Bo/sample Cesium-137 0.0191 0.00 False Pos Test Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-RdV37 Vegetation Sq/sample Cobalt-57 2.92 2.80 2.0-3.6 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-RdV37 Veqetation Bo/sample Cobalt-60 2.24 2.07 1.45-2.69 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-RdV37 Veoetation Bo/sample Manoanese-54 2.78 2.62 1.83-3.41 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-RdV37 Vegetation Sq/sample Pluton i um-238 0.0762 0.0830 0.058-0.108 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-RdV37 Vegetation Sq/sample Plutonium-239/240 0.104 0.108 0.076-0.140 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-RdV37 Veqetation Sq/sample Strontium-90 0.960 1.23 0.86-1.6 Accept a ble MAPEP 4th/2017 12/01/17 MAPEP-17-RdV37 Veqetation Sq/sample Uran ium-234/233 0.162 0.159 0.1 1 1-0.207 Acceptable MAPEP 4th/2017 12/01/17 MAPEP-17-RdV37 Veoetation Bo/sample Uranium-238 0.166 0.163 0.114-0.212 Acceptable C-16 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 PT Quarter I Report Sample GEL Known Acceptance Provider Year Received Sample Number Media Unit Analyte I Nuclide Value value Range/ Ratio Evaluation Date MAPEP 4 th/2017 12/01/17 MAPEP-17-RdV37 Veaetation Ba/sample Zinc-65 5.93 5.37 3.7 6-6.98 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil pCi/kg Actin ium-228 1200 1240 795 -1720 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil pCi/kg Americium-241 1180 1140 667 -1480 Acceptable ERA 4th/2017 11/17/17 MRAD-2 7 Soil pCi/k a Bismuth-212 1600 1240 330 -1820 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil pCi/kg Bismuth-214 1460 1890 1140

-2720 Acceptable ERA 4th/2017 11/17/17 MRAD-27 So il pCi/kg Cesium-134 5770 6320 4130 -7590 Acceptable ERA 4th/2017 11/17/17 MRAD-2 7 So il pCi/k a Ces i um-137 3940 3830 2930 -4930 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil pCi/kg Cobalt-60 4110 4130 2790 -5690 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil pC i/k a Lead-212 1270 1240 812 -1730 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil pCi/kg Lead-214 1720 1980 1160 -2950 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil pCi/kg Manganese-54

<29.2 <1000 <1 000 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil pCi/ka Plutonium-238 508 615 370 -849 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil pCi/kg Plutonium-239 578 506 331 -699 Acceptable ERA 4th/2 017 11/17/17 MRAD-27 Soil pCi/kg Potassium-4 0 10600 10600 7740 -14200 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil pCi/ka Strontium-90 2530 3460 1320 -5470 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil pCi/kg Thorium-234 4160 3690 1170 -6940 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil pCi/kg Uranium-234 4310 3720 2270 -4770 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil pCi/k a Uranium-234 3350 3720 2270 -4770 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil PCi/ka Uranium-234 3400 3720 2270 -4770 Acceptable ERA 4th/2 017 11/17/17 MRAD-27 Soi l pCi/k g Uranium-238 3590 3690 2280 -4680 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil pCi/kg Uranium-238 4380 3690 2280 -4680 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil pCi/ka Uranium-238 3260 3690 2280 -4680 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil pCi/kg Uranium-Total 7732 7580 4110 -10000 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil pCi/kg Uran i um-Total 7190 7580 4110 -10000 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soi l PCi/ka U r anium-Total 7780 7580 4110 -10000 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil pCi/kg Uranium-Total 8090 7580 4110 -10000 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil ua/ka Uranium-Total (mass) 12100 11100 6120 -14000 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil µg/ka Uranium-Total (mass) 10800 11100 6120 -14 000 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil µg/k g Uranium-Total (mass) 12200 11100 6120 -14000 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Soil ua/ka Uranium-Total (mass) 9770 11100 6120 -14000 Acceptable ERA 4th/2017 11/17/17 MRAD-2 7 Soil pCi/kg Zinc-65 7380 6660 5300 -8850 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Veaetat i on PC i/k a Americium-241 681 670 410-891 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Vegetat i on pCi/k g Cesium-134 1530 1670 1070

-2170 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Veaetation pCi/ka Cesium-137 1890 1840 1330 -2560 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Vegetation pCi/kg Cobalt-60 2320 2180 1500 -3050 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Vegetation pC i/k g Curium-244 2380 2790 1370 -4350 Acceptable ERA 4th/2017 1 1/1 7/17 MRAD-27 Veaetation pCi/ka Manaanese-54

<36.1 <300 <300 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Vegetation pC i/kg Plutonium-238 3340 4180 2490 -5720 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Vegetation pCi/k g Plutonium-239 950 1060 651 -1460 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Veaetation pCi/ko Potassium-40 34900 30900 22300 -43400 Acceptable C-17 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 PT Quarter I Report Sample GEL Known Acceptance Provider Year Received Sample Number Media Unit Analyte / Nuclide Value value Range/ Ratio Evaluation Date ERA 4th/2017 11/17/17 MRAD-27 Veoetation pCi/kq Strontium-90 2580 2650 1510-3510 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Veoetation oCi/ko Uranium-234 985 995 654 -1280 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Vegetation pCi/kg Uranium-234 1100 995 654 -1280 Acceotable ERA 4th/2017 11/17/17 MRAD-27 Veoetation pCi/kq Uranium-238 1040 987 659 -1250 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Veoetation oCi/ko Uran i um-238 821 987 659 -1250 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Vegetation pC i/kg Uranium-Total 2320 2030 1380 -2530 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Veoetation pCi/ko Uranium-Tota l 1845 2030 1380 -2530 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Vegetation pCi/kg Uranium-Total 2390 2030 1380 -2530 Acceotable ERA 4th/2017 11/17/17 MRAD-27 Veoetation

µq/kq Uranium-Total (mass) 3200 2980 2000

-3780 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Veoetat i on µq/kq Uranium-Tota l (mass) 2460 2980 2000 -3780 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Vegetation

µg/kg Uranium-Total (mass) 3460 2980 2000

-3780 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Veoe t ation pCi/kq Zinc-65 1670 1400 1010 -1970 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Filter oCi/Filter Amer i cium-241 15.4 14.9 9.18-20.2 Acceotable ERA 4th/2017 11/17/17 MRAD-27 Filter pCi/Filter Cesium-134 1410 1440 916-1790 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Filter pCi/Filter Cesium-137 1010 954 717-1250 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Filter oCi/Filter Cobalt-60 296 271 210-339 Acceotable ERA 4th/2017 11/17/17 MRAD-27 F i lter pC i/Filte r lron-55 1010 1080 335 -2110 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Filter pC i/Filter Manoanese-54 <3.18 <50.0 <50.0 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Filter pC i/Fi l ter Plutonium-238 61.8 63.9 43.8 -84.0 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Filter pCi/Filter Plutonium-239 40.2 44.4 32.1 -58.0 Acceptable ERA 4th/2017 1 1/17/17 MRAD-27 Filter pCi/Filter Strontium-90 115 121 59.1 -181 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Filter pCi/Filter Uranium-234 42.8 41.5 25.7 -62.6 Acceptable ERA 4th/2017 1 1/17/17 MRAD-27 Filter pCi/F ilter Uranium-234 38.5 41.5 25.7 -62.6 Acceptable ERA 4th/2017 11/17/17 MRAD-27 F i lter pCi/Filter Uranium-238 41.1 4 1.2 26.6 -57.0 Acceptable ERA 4th/201 7 11/17/17 MRAD-27 F i lter oCi/Filter Uranium-238 37.5 41.2 26.6 -57.0 Acceptable ERA 4th/2017 11/17/17 MRAD-27 F i lter pCi/Filter Uranium-Total 82 84.6 46.8-129 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Filter pCi/Filter Uranium-Total 86.7 84.6 46.8 -129 Acceptable ERA 4th/2017 1 1/17/17 MRAD-27 Filter pCi/Fi l ter Uranium-Total 83 84.6 46.8 -129 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Filter uo/Filter Uranium-Total (mass) 129 123 78.7 -173 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Filter uo/Filter Uranium-Total (mass) 124 123 78.7 -173 Acceotable ERA 4th/2017 11/17/17 MRAD-27 Fi l ter µg/Filter Uranium-Total (mass) 113 123 78.7-173 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Filter pCi/Filter Zinc-65 146 123 88.1-170 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Filter oCi/Filter Gross Aloha 60 50.1 16.8-77.8 Acceptable ERA 4th/2017 11/17/17 MRAD-27 F i lter pCi/Filter Gross Beta 68.3 6 1.8 39.1 -90.1 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Water pC i/L Americium-24 1 176 158 106-212 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Water oC i/L Cesium-134 1340 1400 1030 -1610 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Water oCi/L Cesium-137 390 378 321 -453 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Water pCi/L Cobalt-60 1990 1830 1590 -2140 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Water pCi/L lron-55 1 550 1640 978 -2230 Acceptable ERA 4th/20 17 1 1/17/17 MRAD-27 Water pCi/L Manoanese-54

<9.38 <100 <100 Acceptable C-18 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 PT Quarter I Report Sample GEL Known Acceptance Provider Year Received Sample Number Media Unit Analyte / Nuclide Value value Range/ Ratio Evaluation Date ERA 4t h/2017 11/17/17 MRAD-27 Water pCi/L Pl ut o n ium-238 1 36 1 5 8 11 7 -19 7 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Water pCi/L Plutonium-239 114 134 1 0 4 -1 69 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Water pCi/L Strontium-90 218 222 145 -293 Acceptable ERA 4th/2017 11/17/17 MRAD-2 7 Water pCi/L Uranium-234 163 16 0 120 -206 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Water pCi/L Uranium-234 153 160 120 -206 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Water pCi/L Uranium-234 157 160 120 -206 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Water pCi/L Uranium-238 169 158 120 -194 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Water pCi/L Uranium-238 136 158 120 -194 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Water pCi/L Uranium-Total 306 325 239 -420 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Water pCi/L Uranium-Total 310 325 239 -420 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Water pCi/L Uranium-Total 343 325 239 -420 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Water uo/L Uranium-Total (m ass) 510 474 378 -573 Acceptab le ERA 4th/2017 11/17/17 MRAD-27 Water µg/L U ra nium-Total (mass) 463 474 378 -573 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Water µq/L Uranium-Total (mass) 407 474 378 -573 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Water pCi/L Zinc-65 2090 1750 1460 -2210 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Water pCi/L Gross Alpha 109 113 40.1 -175 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Water pCi/L Gross Beta 127 130 74.4-193 Acceptable ERA 4th/2017 11/17/17 MRAD-27 Water pCi/L Tr itium 21100 22500 15100 -32100 Acceptable EZA 4th/2017 02/02/18 E12067 Cartr id oe pCi lodine-131 4.84 E+0 1 4.81 E+01 1.01 Acceptable EZA 4th/2017 02/02/18 E12068 Milk pCi/L Strontium-89 9.54E+01 9.23E+01 1.03 Acceptable EZA 4th/2017 02/02/18 E 12068 Milk pC i/L Stront ium-90 1.34E+01 1.69 E+01 0.79 Acceptable EZA 4th/2017 02/02/18 E12069 Milk pCi/L Cerium-141 1.07 E+02 9.83E+01 1.09 Acceptable EZA 4th/2017 02/02/18 E12069 Milk pCi/L Cobalt-58 9.29E+01 8.99E+01 1.03 Acceptable EZA 4th/2017 02/02/18 E12069 Milk pC i/L Cobalt-60 1.95 E+02 1.73E+02 1.13 Acceptable EZA 4th/2017 02/02/18 E12069 Milk pC i/L Chromium-51 2.69E+02 2.42E+02 1.11 Acceptable EZA 4th/2017 02/02/18 E12069 Milk pCi/L Cesium-134 1.2 0E+02 1.25 E+02 0.9 6 Acceptab le EZA 4th/2017 02/02/18 E12069 Milk pC i/L Cesium-137 1.63E+02 1.41E+02 1.15 Acceptab le EZA 4th/2017 02/0 2/18 E12069 Milk PCi/L lron-59 1.27E+02 1.13E+02 1.12 Acceptable EZA 4th/2017 02/02/18 E12069 Milk pCi/L lodine-131 6.59E+01 5.78E+01 1.1 4 Acceptab l e EZA 4th/2017 02/02/18 E12069 Milk pCi/L Manqanese-54 1.79E+02 1.61E+02 1.11 Acceptable EZA 4th/2017 02/02/18 E12069 Milk pCi/L Zinc-65 2.34E+02 2.11E+02 1.11 Acceptable EZA 4th/2017 02/02/18 E12070 Water pC i/L Cer ium-141 6.60E+01 6.24 E+01 1.06 Acceptable EZA 4th/2017 02/02/18 E12070 Water pCi/L Cobalt-58 5.95E+0 1 5.70E+01 1.04 Acceptable EZA 4th/2017 02/02/18 E12070 Water pCi/L Cobalt-60 1.15 E+02 1.10E+02 1.05 Acceptable EZA 4th/2017 02/02/18 E12070 Water pCi/L Chrom ium-51 1.68E+02 1.54E+02 1.09 Acceptable EZA 4th/2017 02/02/18 E12070 Water pC i/L Cesium-134 7.47E+01 7.92E+01 0.94 Acceptable EZA 4th/2017 02/02/18 E12070 Water pCi/L Cesium-137 9.31E+01 8.97E+01 1.04 Acceptable EZA 4th/2017 02/02/18 E12070 Water pCi/L lron-5 9 8.74E+01 7.19E+01 1.22 Acceptable EZA 4th/2 0 17 02/02/18 E12070 Water pCi/L lodine-131 5.36E+01 4.95E+01 1.08 Acceptable C-19 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 PT Quarter I Report Sample GEL Known Acceptance Received Sample Number Unit Analyte / Nuclide Evaluation Provider Year Date Media Value value Range/ Ratio EZA 4th/2017 02/02/18 E12070 Water pC i/L Manqanese-54 1.14E+02 1.02E+02 1.12 Acceptable EZA 4th/2017 02/02/18 E12070 Water pCi/L Zinc-65 1.57E+02 1.34E+02 1.17 Acceotable

This test is to monitor if laboratories are reporting false positive activities for those isotopes. Reporting below a certain activity exhibits the lab's acceptable performance.

- Sensitivity evaluations are introduced to examine the ability of the laboratory to determine activity levels for certain isotopes at low levels. Proper identification of the isotope is considered an acceptable performance.

C-20 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Table C-2 C e 1eg er 2017 Ek rt&z* A If naly ICS p rf e ormance E va uat1on R esu ts Report Sample GEL Acceptance Date Number Sample Media Unit Analyte / Nuclide Value Known value Range/ Evaluation Ratio 07/07/17 E1 1818 Cartridqe pCi lodi ne-131 9.93E+01 9.46E+01 1.05 Acceptable 07/07/17 E 11819 Milk pCi/L Strontium-89 8.86E+01 9.96E+01 0.89 Acceptable 07/07/17 E11819 Milk pCi/L Strontium-90 1.97E+01 2.55E+01 0.77 Acceptable 07/07/17 E 11820 Milk pCi/L lodine-131 9.57E+01 9.68E+01 0.99 Acceptable 07/07/17 E11820 Milk pCi/L Cerium-141 1.21 E+02 1.19E+02 1.02 Acceptable 07/07/17 E11820 Milk pCi/L Chromium-51 1.76E+02 2.12E+02 0.83 Acceptable 07/07/17 E11820 Milk pCi/L Cesium-134 1.71 E+02 1.89E+02 0.9 Acceptable 07/07/17 E1 1820 Milk pCi/L Ces ium-137 2.31 E+02 2.27E+02 1.02 Acceptable 07/07/17 E1 1820 Milk pCi/L Cobalt-58 1.89E+02 1.78E+02 1.06 Acceptable 07/07/17 E11820 Milk pCi/L Manqanese-54 2.74E+02 2.49E+02 1.1 Acceptable 07/07/17 E11820 Milk pCi/L lron-59 1.35E+02 1.27E+02 1.06 Acceptable 07/07/17 E11820 Milk pCi/L Z inc-65 3.22E+02 2.96E+02 1.09 Acceptable 07/07/17 E11820 Milk pCi/L Cobalt-60 2.85E+02 2.93E+02 0.97 Acceptable 07/07/17 E11821 Water pCi/L lodine-131 9.68E+01 8.79E+01 1.1 Acceptable 07/07/17 E11821 Water pCi/L Ce rium-141 1.24E+02 1.19E+02 1.05 Acceptable 07/07/17 E11821 Water PCi/L Chromium-51 2.43E+02 2.11E+02 1.15 Acceptable 07/07/17 E11821 Water pCi/L Cesium-134 1.84E+02 1.88E+02 0.98 Acceptable 07/07/17 E11821 Water pC i/L Ces i um-137 2.49E+02 2.26E+02 1.1 Acceptable 07/07/17 E11821 Water pCi/L Coba lt-58 1.88E+02 1.77E+02 1.06 Acceptable 07/07/17 E11821 Water pCi/L Manoanese-54 2.79E+02 2.48E+02 1.13 Acceptable 07/07/17 E11821 Water pCi/L lron-59 1.46E+02 1.27E+02 1.15 Acceptable 07/07/17 E11821 Water pCi/L Z in c-65 3.36E+02 2.95E+02 1.14 Acceptable 07/07/17 E11821 Water pCi/L Cobalt-60 3.07E+02 2.92E+02 1.05 Acceptable 08/02/17 E11873 Cartridoe pCi lodine-131 8.65E+01 8.46E+01 1.02 Acceptable 08/02/17 E11874 Milk pCi/L Strontium-89 8.88E+01 9.26E+01 0.96 Acceptable 08/02/17 E11874 Milk pCi/L Strontium-90 9.SOE+OO 1.35E+01 0.71 Acceptable 08/02/17 E11875 Milk pCi/L Cerium-141 1.62E+02 1.51 E+02 1.07 Acceptable 08/02/17 E11875 Milk pCi/L Cobalt-58 1.53E+02 1.55E+02 0.98 Acceptable 08/02/17 E11875 Milk pCi/L Cobalt-60 2.07E+02 1.91 E+02 1.08 Acceptable 08/02/17 E11875 Milk pCi/L Chromium-51 3.65E+02 3.15E+02 1.16 Acceptable 08/02/17 E11875 Milk pCi/L Ces ium-134 1.74 E+02 1.88E+02 0.92 Acceptable C-21 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Report Sample GEL Acceptance Sample Media Unit Analyte I Nuclide Known value Range/ Evaluation Date Number Value Ratio 08/02/17 E11875 Milk pC i/L Ces i um-137 1.57E+02 1.50E+02 1.05 Acceptable 08/02/17 E11875 Milk pCi/L lron-59 1.28E+02 1.15E+02 1.11 Acceptable 08/02/17 E11875 Milk pCi/L lodine-131 9.93E+01 9.36E+01 1.06 Acceptable 08/02/17 E11875 Milk pCi/L Manaanese-54 1.95E+02 1.72E+02 1.14 Acceptable 08/02/17 E11875 Milk pCi/L Zinc-65 2.18E+02 2.04E+02 1.07 Acceptable 08/02/17 E11876 Water pCi/L Cerium-14 1 2.09E+02 1.99E+02 1.05 Acceptable 08/02/17 E11876 Water pC i/L Cobalt-58 2.11E+02 2.04E+02 1.04 Acceptable 08/02/17 E11876 Water pC i/L Cobalt-60 2.57E+02 2.50E+02 1.03 Acceptable 08/02/17 E11876 Water pCi/L Chromium-51 4.41 E+02 4.13E+02 1.07 Acceptable 08/02/17 E11876 Water pCi/L Cesium-134 2.38E+02 2.47E+02 0.96 Acceptable 08/02/17 E11876 Water pCi/L Cesium-137 2.20E+02 1.97E+02 1.12 Acceptable 08/02/17 E11876 Water pCi/L lron-59 1.64E+02 1.51E+02 1.09 Acceptable 08/02/17 E11876 Water pCi/L lodine-131 8.69E+01 8.12E+01 1.07 Acceptable 08/02/17 E11876 Water pCi/L Manaanese-54 2.43E+02 2.25E+02 1.08 Acceptable 08/02/17 E11876 Water pCi/L Z i nc-65 2.95E+02 2.67E+02 1.10 Acceptable 11/10/17 E11926 Cartridae PC i lodine-131 6.30E+0 1 6.48E+01 0.97 Acceptable 11/10/17 E11927 Milk pC i/L Strontium-89 7.50E+01 8.27E+01 0.91 Acceptable 11/10/17 E1 1 927 Milk pCi/L Strontium-90 1.01 E+01 1.21 E+01 0.84 Acceptable 11/10/17 E11928 Milk pCi/L lodine-131 7.35E+01 7.10E+01 1.04 Acceptab l e 11 /10/17 E11928 M i lk pCi/L Cerium-141 8.31 E+01 8.70E+0 1 0.95 Acceptable 11/10/17 E11928 Milk pCi/L Chromium-51 2.37E+02 2.17E+02 0.92 Acceptable 11/10/17 E11928 Milk pCi/L Ces i um-134 1.85E+02 2.01E+02 0.92 Acceptable 11/10/17 E11928 Milk pCi/L Cesium-137 1.67E+02 1.72E+02 0.97 Acceptable 11/10/17 E11928 Milk pCi/L Cobalt-58 1.21 E+02 1.17E+02 1.03 Acceptable 11/10/17 E11928 Milk pC i/L Manaanese-54 1.28E+02 1.23E+02 1.04 Acceptable 11/10/17 E11928 Milk pC i/L lron-59 1.56E+02 1.25E+02 1.24 Acceptable 11/10/17 E11928 Milk pCi/L Zinc-65 1.97E+02 1.84E+02 1 07 Acceptable 11/10/17 E11928 Milk pC i/L Cobalt-60 2.59E+02 2.62E+02 0.99 Acceptable 11/10/17 E11929 Water pCi/L lodine-131 8.08E+0 1 7.92E+01 1.02 Acceptable 11/10/17 E11929 Water pCi/L Cerium-141 1.09E+02 9.95E+01 1.1 Acceptable 11/10/17 E11929 Water pCi/L Chromium-51 2.47E+02 2.48E+02 1 Acceptable 11/10/17 E11929 Water pCi/L Cesium-134 2.06E+02 2.29E+02 0.9 Acceptable 11/10/17 E11929 Water pCi/L Cesium-137 2.00E+02 1.96E+02 1.02 Acceptable 1 1/10/17 E11929 Water pCi/L Cobalt-58 1.41 E+02 1.34E+02 1.05 Acceptable 1 1/10/17 E1 1 929 Wate r pCi/L Manqanese-54 1.50E+02 1.40E+02 1.07 Acceptable C-22 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Report Sample GEL Acceptance Sample Media Unit Analyte I Nuclide Known value Range/ Evaluation Date Number Value Ratio 11/10/17 E 11929 W a t e r pC i/L lron-5 9 1.58 E+02 1.4 3E+02 1.1 0 Acceptable 11/10/17 E11929 Water pCi/L Zinc-65 2.37E+02 2.10E+02 1.13 Acceptable 11/10/17 E11929 Water pCi/L Cobalt-60 3.18E+02 2.99E+02 1.06 Acceptable 02/02/18 E12067 Cartridae pCi lodine-131 4.84E+01 4.81E+01 1.01 Acceptable 02/02/18 E12068 Milk pCi/L Strontium-89 9.5 4E+01 9.23E+0 1 1.03 Acceptable 02/02/18 E12068 Milk pC i/L Strontium-90 1.34E+01 1.69E+01 0.79 Acceptable 02/02/18 E12069 Milk pCi/L Cerium-141 1.07E+02 9.83E+01 1.09 Acceptable 02/02/18 E12069 Milk pCi/L Cobalt-58 9.29E+01 8.99E+01 1.03 Acceptable 02/02/18 E12069 Milk pCi/L Cobalt-60 1.95E+02 1.73E+02 1.13 Acceptable 02/02/18 E12069 Milk pCi/L Chromium-51 2.69E+02 2.42E+02 1.11 Acceptable 02/02/18 E12069 Milk pCi/L Cesium-134 1.20E+02 1.25E+02 0.96 Acceptable 02/02/18 E12069 Milk pCi/L Cesium-137 1.6 3E+02 1.41 E+02 1.15 Acceptable 02/02/18 E12069 Milk pCi/L lron-59 1.27E+02 1.13E+02 1.12 Acceptable 02/02/18 E12069 Milk pCi/L lodine-131 6.59E+01 5.78E+01 1.14 Acceptable 02/02/18 E 12069 Milk PCi/L Manaanese-54 1.79E+02 1.61E+02 1.11 Acceptable 02/02/1 8 E12069 Milk pCi/L Zinc-65 2.34E+02 2.11E+02 1.11 Acceptable 02/02/18 E12070 Water pCi/L Cerium-141 6.60E+01 6.24E+01 1.06 Acceptable 02/02/18 E12070 Water pCi/L Cobalt-58 5.95E+01 5.70E+01 1.04 Acceptable 02/02/18 E12070 Water pCi/L Cobalt-60 1.15E+02 1.10E+02 1.05 Acceptable 02/02/18 E12070 Water pCi/L Chromium-51 1.68E+02 1.54E+02 1.09 Acceptable 02/02/18 E12070 Water pCi/L Cesium-134 7.47E+01 7.92E+01 0.94 Acceptable 02/02/18 E12070 Water pCi/L Cesium-1 37 9.31 E+01 8.97E+01 1.04 Acceptable 02/02/18 E12070 Water pCi/L lron-59 8.74E+01 7.19E+01 1.22 Acceptable 02/02/18 E12070 Water pCi/L lodine-131 5.36E+01 4.95E+01 1.08 Acceptable 02/02/18 E12070 Water pC i/L Manqanese-54 1.14E+02 1.02E+02 1.12 Acceptable 02/02/18 E12070 Water pCi/L Zinc-65 1.57E+02 1.34E+02 1.17 Acceptable C-23 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Table C-3 REMP Intra-Laboratory Data Summary: Bias and Precision by Matrix Bias Criteria Precision Criteria (+ I -250/ol (Note 1) WITHIN OUTSIDE WITHIN OUTSIDE REMP 2017 CRITERIA CRITERIA CRITERIA CRITERIA MILK Gamma Iodine-131 11 0 105 0 Gas Flow Sr 2nd count 33 0 35 0 Gas Flow Total Strontium 17 0 18 0 Gamma Spec Liquid RAD A-013 with Ba, La 31 0 85 0 SOLID Gamma Spec Solid RAD A-013 14 0 23 0 LSC Nickel 63 3 0 3 0 Gas Flow Sr 2nd count 6 0 7 0 Gas Flow Total Strontium 3 0 5 0 Gamma Soec Solid RAD A-013 with Ba La 3 0 9 0 Gamma Spec Solid RAD A-013 with Iodine 9 0 9 0 FILTER Gamma Spec Filter RAD A-013 3 0 3 0 Gas Flow Sr 2nd Count 5 0 5 0 Gross A & B 381 0 311 0 Gas Flow Sr-90 1 0 1 0 Gamma Spec Filter 33 0 51 0 LIQUID Alpha Spec Uranium 4 0 6 0 Tritium 183 0 214 0 LSC Iron-55 7 0 7 0 LSC Nickel 63 7 0 7 0 Gamma Spec Liquid RAD A-013 2 0 2 0 Gamma Iodine-131 25 0 24 0 Alpha Spec Plutonium 6 0 6 0 Gas Flow Sr 2nd count 3 0 3 0 Aloha Spec Am241 Curium 8 0 8 0 Gas Flow Total Strontium 17 0 15 0 Gross Alpha Non Vol Beta 29 0 50 0 Gamma Spec Liquid RAD A-013 with Ba La 66 0 146 0 Gamma Spec Liquid RAD A-013 with Iodine 24 0 67 0 TISSUE Gamma Spec Solid RAD A-013 35 0 35 0 Gas Flow Sr 2nd count 8 0 8 0 Gas Flow Total Strontium 7 0 7 0 Gamma Spec Solid RAD A-013 with Iodine 10 0 11 0 SEA WATER LSC Iron-55 8 0 8 0 LSC Nickel 63 8 0 8 0 C-24 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Bias Criteria Precision Criteria <+ I -250/ol (Note 11 WITHIN OUTSIDE WITHIN OUTSIDE REMP 2017 CRITERIA CRITERIA CRITERIA CRITERIA Gas Flow Total Strontium 8 0 9 0 Gro s s Alpha Non Vol Beta 9 0 9 0 Gamma Spec Liqu i d RAD A-013 with Iodine 11 0 11 0 VEGETATION Gamma Spec Solid RAD A-013 5 0 5 0 Gas Flow Sr 2nd c ount 11 0 11 0 Gamma Soec Solid RAD A-013 with Iodine 76 0 87 0 AIR CHARCOAL Gamma Iodine 131 RAD A-013 381 0 529 0 Carbon-14 (Ascarite/Soda Lime Filter per Liter) 2 6 0 26 0 DRINKING WATER Tritium 39 0 36 0 LSC Iron-55 15 0 15 0 LSC Nickel 63 15 0 15 0 Gamma Iodine-131 21 0 20 0 Gas Flow Sr 2nd c ount 11 0 11 0 Gas Flow Total Strontium 16 0 1 7 0 Gross Aloha Non Vol Beta 78 0 75 0 Gamma Spec Liquid RAD A-013 with Ba, La 16 0 6 8 Total 1748 2246 Note 1: The RPO must be 20 pe r cent or l e ss , if both samples are greater than 5 times the MDC. If both results are less t h an 5 times MDC , then the RPO must be equal to or less than 100%. If one result is above the MDC and the other is below the MDC, then the RPO can be calculated using the MDC for the result of the one below the MDC. The RPO must be 100% or less. In the situation where both results are above the MDC but one result is gre a ter than 5 times the MDC and the other is less than 5 times the MDC , the RPD must be less than or equal to 20%. If both results are below MDC , then the limits on % RPD are not applicable. C-25 Donald C. Cook Nuc l ear Plant Annual Radiological Environmental Operating Report 2017 Table C-4 All Radiological I ntra-Laboratory Data Summary: Bias and Precision by Matrix Bias Criteria ( + I -250/o Precision Criteria (Note 1) WITHIN OUTSIDE WITHIN OUTSIDE Total Radioloaical 2017 CRITERIA CRITERIA CRITERIA CRITERIA MILK Gamma Iodine-129 2 0 2 0 Gamma Iod ine-131 11 0 105 0 Gas Flow Sr 2nd count 33 0 35 0 Gas Flow Strontium 90 6 0 6 0 Gas Flow Total Strontium 17 0 18 0 Gamma Soec Liauid RAD A-013 with Ba La 3 1 0 85 0 Gamma Spec Liquid RAD A-013 with Iodine 4 0 4 0 SOLID Gas Flow Radium 228 89 0 101 0 Tritium 265 0 3 04 0 Tritium by Pyro l ysis 0 0 2 0 Carbon-14 154 0 202 0 Carbon-14 by Pyrolysi s 0 0 2 0 ICP-MS Tc-99 in Filter 0 0 1 0 LSC Iron-55 93 0 99 0 Aloha Soec Polonium Solid 51 0 6 3 0 Gamma Nickel 59 RAD A-022 81 0 94 0 LSC Chlorine-36 in Solids 2 0 2 0 Gamma Spec Ra226 RAD A-013 24 0 25 0 Gamma Spec Solid RAD A-013 910 0 1238 0 LSC Nickel 63 190 0 190 0 LSC Plutonium 180 0 191 0 Technetium

-99 35 0 0 411 0 Gross Alpha Beta Soil Leach 4 0 7 0 ICP-MS Tc-99 Prep in Filter 0 0 1 0 ICP-MS Technetium-99 in Soil 5 0 3 0 L SC Se l en iu m 79 9 0 15 0 Total Activity, 4 0 6 0 Tritium 44 0 45 0 Alpha Spec Am243 33 0 42 0 Gamma Iodine-129 93 0 117 0 Gross Aloha/Beta 2 0 2 0 Gas Flow Lead 210 13 0 13 0 Total Uranium KPA 10 0 16 0 Alpha Spec Uranium 3 94 0 510 0 LSC Promethium 147 4 0 4 0 LSC Rapid Strontium 89 and 90 50 0 59 0 Alpha Spec Thorium 304 0 3 90 0 Gas Flow Radium 228 0 0 68 0 ICP-MS Uranium-233 234 in Solid 36 0 36 0 LSC Sulfur 35 1 0 1 0 Alpha Soec Plutonium 402 0 447 0 ICP-MS Technetium-99 Preo in Soil 6 0 4 0 C-26 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Bias Criteria ( + I -25% Precision Criteria (Note 1 l WITHIN OUTSIDE WITHI N OUTSIDE Total Radioloaical 2017 CRITERIA CRITERIA CRITERIA CRITERIA LSC Calcium 45 2 0 2 0 A l pha Spec N eptun i um 299 0 320 0 Alpha Spec Plutonium 104 0 122 0 Alpha Spec Radium 226 43 0 62 0 Gas Flow Sr 2 nd count 27 0 32 0 Gas Flow St ro ntium 90 216 0 218 0 Gas Flow Tot a l Radium 1 0 1 0 Lucas Cell Radium 226 166 0 249 0 Total Activity Screen 6 0 16 0 Aloha Soec Am241 C u rium 351 0 382 0 A l pha Spec T o tal Uranium 9 0 11 0 Gas Flow Tot a l Strontium 96 0 101 0 ICP-MS Uranium-233, 234 Prep in Solid 3 4 0 34 0 ICP-MS Uranium-235, 236, 238 in Solid 44 0 35 0 Alpha Spec P o lonium Solid 2 0 2 0 Gamma Spec Solid RAD A-013 with Ba, La 3 0 9 0 Gamma Spec Solid RAD A-013 with Iodine 9 0 9 0 GFC Chlorine-36 in Solids 12 0 14 0 Gamma Spec Solid RAD A-013 (pCi/Sample) 3 0 3 0 T echnetium-9 9 1 0 1 0 Tritium 7 0 7 0 Alpha Spec A m 241 (pCi/Sample) 2 0 2 0 ICP-MS Uranium-234 235, 236, 238 in Solid 1 62 0 152 0 ICP-MS Urani u m-235 236, 238 Prep in Solid 35 0 40 0 Gross Aloha/Beta (Am/Cs Calibration)

Solid 2 0 2 0 Aloha Soec U r anium 1 0 2 0 Gross Alpha/Beta 325 0 469 0 Alpha Spec Plutonium 2 0 3 0 Ga s Flow Str o ntium 90 5 0 3 0 Gross Alpha/Beta (Americium Calibration)

Solid 2 0 2 0 ICP-MS Uranium-2 34 2 35 2 36 2 3 8 Pr e p in S o lid 78 0 77 0 FILTER Alpha Soec U r anium 5 0 19 0 Alpha Spec P o lon i um 1 0 11 0 Gamma I-131 filter 4 0 4 0 LSC Plutonium Filter 76 0 94 0 Tritium 48 0 134 0 Tritium by Pyrolysis 0 0 1 0 Carbon-14 19 0 8 3 0 Carbon-14 by Pyrolysis 0 0 1 0 ICP-MS Tc-99 in Filter 0 0 3 0 Nickel-63 0 0 16 0 LSC Iron-55 45 0 60 0 Gamma Nickel 59 RAD A-02 2 53 0 62 0 Gamma Iodin e 131 RAD A-013 0 0 1 0 LSC Nickel 63 56 0 64 0 C-27 Donald C. Cook Nuc l ear Plant Annual Radiological Environmental Operating Report 2017 B i as Criteria ( + / -25% Precision Criteria (Note 1} WITHIN OUTSIDE WITHIN OUTSIDE Total Radiological 2017 CRITERIA CRITERIA CRITERIA CRITERIA Tech neti u m-99 26 0 72 0 Gamma Spec Filter RAD A-013 118 0 174 0 ICP-MS Tc-99 Prep in Filter 0 0 3 0 LSC Selenium 79 1 0 2 0 Alohasoec No Filter pe r Liter 11 0 2 1 0 Alohaspec Pu Filter per Liter 29 0 32 0 Gamma Iodine-125 3 0 0 0 Gamma Iod i ne-129 6 0 46 0 Alpha Spec Am243 7 0 13 0 Alpha Spec Radium Filter/Liter 1 0 1 0 Gas Flow Lead 210 0 0 2 0 Total Uranium KPA 4 0 14 0 Aloha Spec Uranium 50 0 80 0 LSC Promethium 147 0 0 3 0 LSC, Rapid Strontium 89 and 90 59 0 72 0 Alpha Spec Thorium 36 0 55 0 Gas Flow Radium 228 0 0 1 0 Alpha Spec Plutonium 77 0 125 0 ICP-MS Uranium-233 234 in Filter 0 0 4 0 Aloha Soec Neptunium 52 0 61 0 A l oha Spec Plutonium 64 0 84 0 Aloha Spec Polonium .(Filter/Lite r) 0 0 2 0 Aloha Spec Radium 226 0 0 2 0 Alpha/Beta (Americium Calibration) 1 0 1 0 Gas F l ow Sr 2nd Count 48 0 61 0 Gas Flow Strontium 90 56 0 82 0 LSC Plutonium 241 Filter per Liter 6 0 16 0 Lucas Cell Radium-226 1 0 2 0 Aloha Spec Am241Curium 102 0 146 0 Gas Flow Total Strontium 3 0 5 0 ICP-MS Uranium-233 234 Prep in Filt e r 0 0 4 0 ICP-MS Uranium-235 236 238 in Filter 0 0 4 0 Total Activity in Filter, 2 0 4 0 Alohasoec Am241 Cu ri um Filter oer Lit e r 11 0 3 0 0 Tritium 82 0 93 0 GFC Ch l orine-36 in Filters 2 0 2 0 Gamma Spec Filter RAD A-013 Direct Count 2 0 6 0 Carb o n-14 8 0 11 0 GFC Chlorine-36 in Filters PL 2 0 3 0 Gross A & B (Americ i um Calibration)

Liquid 0 0 21 0 Direct Count-Gross Alpha/Beta 69 0 0 0 Gross Alpha/Beta 31 0 41 0 ICP-MS Uranium-234 235 236 238 in Filter 6 0 8 0 ICP-MS Uranium-235 236 238 Prep in Filter 0 0 4 0 Alpha Soec U 10 0 36 0 C-28 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Bias Criteria ( + I -25% Precision Criter i a {Note 1 l WITHIN OUTSIDE WITHIN OUTSIDE Total Radiological 2017 CRITERIA CRITERIA CRITERIA CRITERIA Gros s A & B 420 0 358 0 LSC Iron-55 3 0 11 0 Technetium

-99 10 0 17 0 Gas Flow Sr-90 8 0 16 0 LSC Nicke l 63 12 0 22 0 Gas Flow Pb-210 7 0 22 0 Gas Flow Ra-228 4 0 10 0 Gamma Iodine 129 9 0 9 0 ICP-MS Ur ani u m-234 2 35 23 6 23 8 Pr e p in Filter 3 0 4 0 Gamma Spec Filter 84 0 115 0 Lucas Cell Ra-226 10 0 21 0 A l oha Soec Thorium 12 0 29 0 LIOUID Aloha Soec Uranium 409 0 612 0 Alpha Spec Polonium 9 0 17 0 Electrolytic T r itium 11 0 19 0 Tritium 1104 0 1179 0 Carbon-14 168 0 197 0 Pluton i um 84 0 107 0 Chlorine-36 in Liquids 6 0 11 0 Iodine-131 4 0 2 0 LSC Iron-55 101 0 138 0 Gamma N i ckel 59 RAD A-022 13 0 25 0 Gamma Iodine 131 RAD A-013 2 0 2 0 LSC Nickel 6 3 127 0 167 0 LSC Radon 222 14 0 14 0 Technetium

-99 450 0 503 0 Direct Tritium 26 0 26 0 Gamma Spec Liquid RAD A-013 730 0 770 0 A l pha Spec Total U RAD A-011 25 0 29 0 LSC S e lenium 79 35 0 36 0 Alpha Spec Am243 11 0 17 0 Gamma Iodine-129 122 0 1 43 0 Gamma Iodine-131 25 0 24 0 ICP-MS Tech n etium-99 in Water 11 0 29 0 Gas Flow Lead 210 22 0 24 0 Total Uranium KPA 55 0 119 0 LSC Promethi u m 147 17 0 1 8 0 LSC Rapid Strontium 89 and 90 6 0 9 0 Aloha Soec Polonium 1 0 2 0 A l oha Soec Thorium 209 0 295 0 Gas Flow Rad i um 228 462 0 5 4 1 0 Gas Flow Radium 228 10 0 10 0 Aloha Soec Pl u ton i um 311 0 4 2 1 0 LSC Sulfur 35 11 0 12 0 Aloha Soec Neotunium 135 0 196 0 Aloha Soec Plutonium 23 0 3 4 0 Alpha Spec Radium 226 31 0 3 6 0 C-29 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Bias Criteria ( + I -25% Precision Criteria (Note 1 l WITHIN OUTSIDE WITHIN OUTSIDE Total Radioloaical 2017 CRITERIA CRITERIA CRITERIA CRITERIA Gas Flow Sr 2nd count 113 0 127 0 Gas Flow Strontium 90 448 0 498 0 Gas Flow Total Radium 72 0 96 0 ICP-MS Technetium

-99 Prep in Water 11 0 29 0 ICP-MS Uranium-233, 234 in Liquid 6 0 7 0 LSC Calcium 45 12 0 12 0 Lucas Cell Radium 226 510 0 604 0 Lucas Cell Radium-226 7 0 10 0 Total Activity Screen 1 0 1 0 Chlorine-36 in Liauids 13 0 15 0 Aloha Soec Am241 Curium 285 0 397 0 Gas Flow Total Strontium 90 0 90 0 Gross Aloha Non Vol Beta 865 0 1072 0 LSC Phosphorus

-32 3 0 8 0 ICP-MS Uranium-233 234 Prep in Liauid 6 0 7 0 Tritium in Drinking Water by EPA 906.0 5 0 5 0 Gamma Soec Liauid RAD A-013 with Ba La 66 0 149 0 Gamma Sp ec Liquid RAD A-013 with Iodine 104 0 146 0 Gas Flow Strontium 89 & 90 2 0 0 0 ICP-MS Uranium-235 236 238 in Liauid 11 0 9 0 Gas Flow Total Aloha Radium 4 0 2 0 Gross Alpha Co-precipitation 8 0 15 0 ICP-MS Uranium-235 236 238 Prep in Liquid 8 0 9 0 Gross Alpha/Beta 0 0 1 0 ICP-MS Uranium-234 235 236, 238 in Liquid 88 0 94 0 Gross Aloha Beta (Americium Calibration)

Liauid 28 0 52 0 ICP-MS Uran ium-234 235 236 238 Pr ep in Liquid 46 0 50 0 Alpha/B eta (Americium Calibration)

Drinking Water 22 0 15 0 TISSUE Gamma Soec Solid RAD A-013 60 0 72 0 Aloha Soec Uranium 6 0 8 0 Aloha Soec Thorium 0 0 1 0 Alpha Spec Plutonium 7 0 7 0 Alpha Spec Radium 226 0 0 1 0 Gas Flow Sr 2nd count 8 0 8 0 Gas Flow Strontium 90 12 0 13 0 Alpha Spec Am241 Curium 3 0 3 0 Gas Flow Total Strontium 7 0 7 0 Gamma Soec Solid RAD A-013 with Iodine 10 0 11 0 Gross Aloha/Beta 2 0 2 0 SEA WATER LSC Iron-55 8 0 8 0 LSC Nickel 63 8 0 8 0 C-30 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Bias Criteria C + I -25% Precision Criteria (Note 1) WITHIN OUTSIDE WITHIN OUTSIDE Total Radioloqical 2017 CRITERIA CRITERIA CRITERIA CRITERIA Gas Flow Total Strontium 8 0 9 0 Gross Alpha Non Vol Beta 9 0 9 0 Gamma Spec Liquid RAD A-013 with Iodine 11 0 11 0 VEGETATION Carbon-14 7 0 7 0 Gamma Nickel 59 RAD A-022 1 0 1 0 Gamma Spec Solid RAD A-013 27 0 27 0 LSC Nickel 63 1 0 1 0 LSC Plutonium 1 0 1 0 Technetium-99 1 0 1 0 Tritium 7 0 7 0 Gamma Iodine-129 1 0 1 0 Gas Flow Lead 210 3 0 3 0 Total Uranium KPA 4 0 4 0 Alpha Spec Uranium 23 0 31 0 Alpha Spec Thorium 11 0 14 0 Alpha Spec Plutonium 15 0 14 0 Gas Flow Sr 2nd count 11 0 11 0 Gas Flow Strontium 90 14 0 15 0 Gas Flow Total Radium 2 0 3 0 Alpha Spec Am241 Curium 5 0 4 0 Gamma Spec Solid RAD A-013 with Iodine 76 0 87 0 Gamma Spec Solid RAD A-013 (pCi/Sample) 1 0 2 0 Alpha Spec Am241 (pCi/Sample) 1 0 2 0 ICP-MS Uranium-234 235 236 238 i n Solid 8 0 4 0 Alpha Spec Uranium 0 0 2 0 Gross Alpha/Beta 13 0 18 0 Alpha Spec Plutonium 0 0 2 0 Gas Flow Strontium 90 4 0 2 0 ICP-MS Uranium-234 235 23 6 238 Prep in Solid 4 0 2 0 AIR CHARCOAL Gamma Iodi n e 131 RAD A-013 381 0 529 0 Gamma Iodi n e-125 1 0 0 0 Gamma Iodi n e-129 15 0 6 0 Alpha Spec Uranium 0 0 1 0 Aloha Soec Plutonium 0 0 1 0 Alpha Spec Am241Curium 0 0 1 0 Carbon-14 13 0 13 0 Carbon-14 (Ascarite/Soda Lime Filter per Liter) 26 0 26 0 Gamma Iodine 129 12 0 12 0 Gamma Spe c Filter 12 0 12 0 DRINKING WATER Alpha Spec Uranium 2 0 2 0 Alpha Spec Polonium 0 0 1 0 Tritium 39 0 36 0 Iodine-131 1 0 7 0 LSC Iron-55 15 0 15 0 C-31 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Bias Criteria ( + I -25% Precision Criteria (Note 1) WITHIN OUTSIDE WITHIN OUTSIDE Total Radioloaical 2017 CRITERIA CRITERIA CRITERIA CRITERIA LSC Nickel 6 3 15 0 15 0 LSC Radon 222 3 4 0 29 0 Gamma Spec Liquid RAD A-013 25 0 26 0 Gamma Iodine-129 1 0 4 0 Gamma Iodine-131 21 0 20 0 Total Uranium KPA 2 0 4 0 Aloha Soec Thorium 2 0 2 0 Gas Flow Radium 228 33 0 39 0 Gas Flow Sr 2nd count 11 0 11 0 Gas Flow Strontium 90 10 0 18 0 Gas Flow Total Rad i um 1 0 1 0 LSC Calcium 45 2 0 2 0 Lucas Cell Radium 226 0 0 1 0 Lucas Cell Radium-226 4 8 0 48 0 Gamma Spec Drinkinq Water RAD A-013 4 0 2 0 0 Gas Flow Total Stront i um 16 0 1 7 0 Gross Alpha Non Vol Beta 3 2 8 0 270 0 Tritium in Drinkinq Water by EPA 906.0 4 7 0 61 0 Gamma Spec Liquid RAD A-013 with Ba, La 16 0 68 0 Gas Flow Strontium 89 & 90 23 0 20 0 Gross Alpha Co-orecioitation 127 0 94 0 Aloha/B e ta (Ameri c ium C a librati o n) Drinkino Wa ter 11 0 11 0 ECLS-R-GA NJ 48 Hr. Rap i d Gross Aloha 1 0 1 0 Total 17140 21176 Note 1: The RPD must be 20 percent or less , if both samples are greate r than 5 times the MDC. If both r esult s are less than 5 t i mes MDC, then the RPO must be equal to or less than 100%. If one result is above the MDC and the other is below the MDC , then the RPO can be calculated using the MDC for the result of the one below the MDC. The RPO must be 100% o r less. In the situation where both results are above the MDC but one result is grea t er than 5 times the MDC and the other is less th an 5 times the MDC , the RPO must be less than or equal to 20%. If both resul t s are below MDC , then the limits o n% RPO a r e not applicable. C-32 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Table C-5 2017 Corrective Action Report Summary CORRECTIVE ACTION ID# & DISPOSITION PE FAILURE CARR170227-1085 Root Cause Analysis ISO Doc u mentation of PT Failures in RAD Gross Alpha 108 for Gross Alpha. EPA 00-02 and EPA 9310 CARR170828-1125 ISO Documentation of PT Failure in RAD 110 for 1-131 After a review of the data , it was determined that an unknown error occurred during the preparation and/or analysis of these samples because all quality control criter i a were met for the batch. The follow i ng steps were taken to prove that this posit i ve bias was an isolated occurrence and that our overall process is within control. 1. The batch quality control samples were reviewed and found to be compliant.

The LCSs recovered at 119% (EPA 00-02) and 96.9% (EPA 900 & 9310). 2. The sample was duplicated within each batch and met criteria with RPDs of 2.52% & 3.48%. (EPA 00-02) and 0.211% and 16.4% (EPA 900.0 & 9310). 3. The LCS control charts were review for biases. None were noted. Permanent Corrective/Preventive Actions or Improvements

The laboratory must assume unidentified random errors caused the biases because all quality control criteria w e r e met for the batches. The sample was re-analyzed after the " Not Acceptable" rating was received and a result that fell within the acceptance range was obta i ned. Root Cause Analysis lodine-131

After a review of the data , it was determined that an unknown error occurred during the analysis of these samples because all quality control criteria were met for the batch. The following steps were taken to prove that this positive bias was an isolated occurrence and that the laboratory

's overall process is in control: 1. The batch quality control sampl e s were reviewed and found to be compliant.

C-33 Donald C. Cook Nuclear Plant CORRECTIVE ACTION ID# & PE FAILURE Annual Radiological Environmental Operating Report 2017 DISPOSITION

2. The sample was duplicated within the batch and met criteria.

The duplicate result is within the acceptance limits of the study. 3. The control charts were reviewed for biases and none were noted. Permanent Corrective/Preventive Actions or Improvements None needed at this time. The laboratory must assume unidentified random errors caused the biases because all quality control criteria were met for the batches. C-34 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Env i ronmental TLDs Environmental dosimetry services for the reporting period of January -December , 2017 were prov i ded by the Environmental Dosimetry Company (EDC), Sterling , Massachusetts. The TLD systems at the Environmental Dosimetry Company (EDC) are calibrated and operated to ensure consistent and accurate evaluation of TLDs. The quality of the dosimetric results reported to EDC clients is ensured by in-house performance testing and independent performance testing by EDC clients. The purpose of the dosimetry quality assurance program is to provide performance doc u mentation of the routine processing of EDC dosimeters. Performance testing provides a stati s tical measure of the bias and precision of dosimetry processing against a reliable standard , whic h in turn points out any trends or performance changes. Dosimetry quality control tests are performed on EDC Panasonic 814 Environmental dosimeters. These tests include: (1) the in-h o use testing program conducted by the EDC QA Officer and (2) independent tests performed by EDC clients. In-house tests are performed using six pairs of 814 dosimeters , a pair i s reported as an individual result and six pairs are reported as the mean result. Excluded from this report are instrumentation checks. Although instrumentation checks repr e sent an important aspect of the qua l ity assurance program , they are not included as proc e ss checks in this report. Instrumentation checks represent between 5-10% of the TLDs proc e ssed. Tabl e C-6 provides a summary of individual dosimeter results evaluated against the EDC internal acceptance criteria for high-energy photons (Cs-137) only. The internal acceptance (tolerance) criteria for the Panasonic Environmental dosimeters are: +/- 15% for bias and +/- 12.8% for p r ecision. During this period, 100% (72/72) of the individual dosimeters , evaluated against thes e criteria met the tolerance l i mits for accuracy and 100% (72/72) met the criterion for precision. Tabl e C-7 provides the Bias + Standard deviation results for each group (N=6) of dosimeters evaluated against the internal tolerance criteria. Overall , 100% (12/12) of the dosimeter sets evaluated against the internal tolerance performance criteria met these criteria.

Table C-8 presents the independent blind spike results for irradiated dosimeters provided by clien t utilities during this annual period. All results passed the performance acceptance criterion.

Table C-6 Percentage of Individual Dosimeters That Passed EDC Internal Criteria January-December 2011(1), (2) Dosimeter Type Number % Passed Bias Criteria Tested Pan a sonic Environmental 72 100 (1 J This table summarizes results of tests conducted by EDC. (2 l Environmental dosimeter results are free in air. C-35 % Passed Precision Criteria 100 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Table C-7 Mean Dosimeter Analyses (N=6) JANUARY -DECEMBER 2017(1), (2) Process Date Exposure Level Mean Bias% Standard Tolerance Limit Deviation%

+/-15% 5/01/2017 31 1.0 0.9 Pass 5/08/2017 57 -0.4 1.0 Pass 5/08/2017 85 0.8 2.4 Pass 7/25/2017 36 -2.5 1.7 Pass 07/29/2017 67 5.5 1.0 Pass 8/8/2017 123 -3.8 0.9 Pass 10/23/2017 44 3.8 2.8 Pass 10/31/2017 74 1.7 1.2 Pass 11/12/2017 94 0.5 1.0 Pass 2/01/2018 27 2.6 1.4 Pass 2/06/2018 50 3.0 0.6 Pass 2/08/2018 105 0.5 2.0 Pass (1 J This table summarizes results of tests conducted by EDC for TLDs issued in 2017. <2 l Environmental dosimeter results are free in air. Table C-8 Summary of Independent Blind Spike Dosimeter Testing JANUARY -DECEMBER 2017(1), (2 l Issuance Period Client Mean Bias% Standard Deviation%

1st Qtr. 2017 Millstone 2.9 1.5 2 na Qtr.2017 Millstone 2.8 1.2 3ra Qtr. 2017 Millstone 1.1 2.7 4 1 n Qtr.2017 Millstone

-3.5 2.4 4t n Qtr.2017 Seabrook 8.6 1.6 (1 J Performance criteria are +/-30%. (2 l Blind spike irradiations using Cs-137 C-36 Pass/ Fail Pass Pass Pass Pass Pass Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 APPENDIX D 2017 DATA

SUMMARY

D-1 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (p C i/m3) AP NBF 4 1 379200 1 1/4/20 1 7 BETA 2.70E-02 I.59 E-03 I. I 3E-03 AP SBN 413792002 1/4/20 1 7 BETA 3.04E-02 l.70 E-03 l.1 6E-03 AP DOW 4 1 3792003 1/4/20 1 7 BETA 3.15E-02 l.70 E-03 1.1 2E-03 AP C OL 413792004 1/4/20 1 7 BETA 2.50E-02 I.53E-03 1.1 3£-03 AP ONS-1 4 1 3792005 1/4/20 1 7 BETA 2.85E-02 l.64E-03 1.1 5£-03 AP ONS-2 413792006 1/4/20 1 7 BETA 2.89E-02 I .65E-03 1.1 4E-03 AP ONS-3 4 1 3792007 1/4/20 1 7 BETA 2.78E-02 1.6 1 E-03 1.1 3£-03 AP ONS-4 413792008 1/4/20 1 7 BETA 2.86£-02 I .60 E-03 1.09£-03 AP ONS-5 413792009 1/4/20 1 7 BETA 2.73E-02 1.58£-03 1.11 E-03 AP ONS-6 4137920 1 0 1/4/20 1 7 BETA 2.62E-02 1.55£-03 1.11 E-03 AP NBF 414277001 1/1 1/2017 BETA 3.48E-02 1.77£-03 I.1 6E-03 AP SBN 414277002 1/1 1/20 1 7 BETA 3.35£-02 1.76 E-03 l.20E-03 AP DOW 4 1 4277003 1/11/2017 BETA 2.93E-02 1.63£-03 1.1 7£-03 AP COL 4 1 4277004 1/1 1/2017 BETA 2.98E-02 1.64£-03 1.1 7£-03 AP ONS-1 4 1 4277005 1/11/20 1 7 BETA 2.87£-02 1.64£-03 1.2 1£-03 AP ONS-2 4 1 4277006 1/11/20 1 7 BETA 2.68£-02 l.56E-03 l.1 6E-03 AP ONS-3 414277007 1/11/20 1 7 BETA 2.69£-02 1.57£-0 3 l.18 E-03 AP ONS-4 414277008 1/11/20 1 7 BETA 2.62£-02 1.54£-03 1.16£-03 AP ONS-5 4 1 4277009 1/11/2017 BETA 2.80£-02 l.59E-0 3 l.1 6E-03 AP ONS-6 4 1 4277010 1/11/2017 BETA 2.81£-02 1.59£-03 1.16£-03 AP NBF 4 1 467800 1 1/18/2017 BETA 3.23£-02 1.71 E-03 1.17£-03 AP SBN 414678002 1/1 8/20 1 7 BETA 2.65£-02 1.59£-03 I .23E-03 AP DOW 414678003 1/18/2017 BETA 2.62E-02 1.57£-03 1.2 1£-03 AP COL 414678004 1/18/20 1 7 BETA 2.72£-02 1.59£-03 1.20£-03 AP ONS-1 414678005 1/1 8/2017 BETA 2.62E-02 1.56£-03 l.19E-03 AP ONS-2 414678006 1/18/2017 BETA 2.52E-02 l.52E-03 l.18 E-0 3 AP ONS-3 414678007 1/1 8/20 1 7 BETA 2.64£-02 1.54£-03 l. l SE-03 AP ONS-4 414678008 1/18/2017 BETA 2.82£-02 1.63£-03 1.22£-03 AP ONS-5 414678009 1/18/2017 BETA 2.63E-02 1.53£-03 I. I SE-03 AP ONS-6 414678010 1/18/2017 BETA 2.53£-02 I.SOE-03 1.1 4£-03 AP NBF 4 1 5 1 91001 1/25/2017 BETA 2.34E-02 1.47£-03 1.1 8£-03 AP SBN 4 1 5 191002 1/25/2017 BETA 2.SIE-02 1.56£-03 1.24£-03 AP DOW 415 1 91003 1/25/20 1 7 BETA 1.95£-02 l.39E-03 1.24E-03 AP COL 4 1 5 19 1 004 1/25/2017 B E TA 2.39£-02 1.52£-03 1.23£-03 AP ONS-1 4 1 5191005 1/25/2017 BETA 2.21E-02 l.45E-03 J.2 I E-03 AP ONS-2 4 1 5 1 91006 1/25/2017 B E TA 2.3IE-02 1.46£-03 1.1 7£-03 AP ONS-3 4 1 5 19 1 007 1/25/2017 B E TA 2.47£-02 I.SI E-03 l.19 E-03 AP ONS-4 4 1 5 1 9 1 008 1/25/2017 B E TA 2.42£-02 1.52£-03 1.22£-03 AP ONS-5 4 1 5 1 91009 1/25/2017 B ETA 2.19£-02 1.42E-03 1.1 7£-03 AP ONS-6 4 1 5 1 91010 1/25/2017 BETA 2.16E-02 I .4 1 E-03 1.1 7£-03 AP NBF 41569400 1 2/1/2017 B E TA 1.87£-02 l.33E-03 1.17£-03 AP SBN 4 1 5694002 2/1/20 1 7 BETA 1.89E-02 1.35£-03 1.1 8E-03 AP DOW 415694003 2/1/2017 B ETA 1.72£-02 1.28£-03 I .17£-03 AP COL 4 1 5694004 2/1/20 1 7 BETA l.74 E-02 I .28E-03 1.16£-0 3 AP ONS-1 4 1 5694005 2/1/2017 B E TA 1.85£-02 1.3 1 E-03 1.14 E-03 AP ONS-2 415694006 2/1/2017 BETA 2.02E-02 l.39E-0 3 1.19£-03 AP ONS-3 4 1 5694007 2/1/2017 BETA 1.91 E-02 l.31 E-03 l.l OE-03 AP ONS-4 415694008 2/1/20 1 7 BETA 1.95£-02 I .32E-03 I. I OE-03 AP ONS-5 4 1 5694009 2/1/2017 BETA l.95E-02 1.35£-03 1. I SE-03 AP ONS-6 4156940 1 0 2/1/20 17 B ETA 1.96£-02 1.35£-03 l.14 E-03 D-2 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.D E V. MDC FLAGS TYPE STATION LSN DATE NUCL ID E (pCi/m 3) (pCi/m3) (pCi/m3) AP NBF 4 1 6 1 5900 1 2/8/20 17 BETA 2.09E-02 1.4 1 E-03 1.26E-0 3 AP SBN 4 1 6 1 59002 2/8/2 01 7 BETA 2.25E-02 1.42E-03 1.20E-0 3 AP DOW 4 1 6159003 2/8/20 1 7 BETA 2.1 8E-02 I .44E-03 1.27E-03 AP COL 4 1 6 1 59004 2/8/20 1 7 BETA 2.20E-02 I .43E-03 1.24E-03 AP ONS-1 4 1 6159005 2/8/20 1 7 BETA 2.32E-02 1.47E-03 l.25E-03 AP ONS-2 4 1 6159006 2/8/20 1 7 BETA 1.93E-02 l.35 E-03 1.26E-03 AP ONS-3 4 1 6159007 2/8/20 1 7 BETA 1.9 1 E-02 l.34E-03 1.25E-03 AP ONS-4 4 1 6159008 2/8/20 1 7 BETA 2.74E-02 l.57E-03 l.2 2E-03 AP ONS-5 4 1 6 1 59009 2/8/20 1 7 BETA 2.54E-02 l.53E-03 1.24E-03 AP ONS-6 4 1 6 1 590 10 2/8/20 1 7 BETA 2.30E-02 I .46E-03 l.25E-03 AP NBF 41694800 1 2/15/20 1 7 BETA 2.6 5 E-02 l.56E-03 l.1 7E-03 AP SBN 4 1 6948002 2/15/20 1 7 BETA 2.78E-02 l.58E-03 I. 1 4E-03 AP DOW 4 1 6948003 2/15/20 1 7 BETA 2.82E-02 l.64E-03 l.20E-03 AP COL 4 1 6948004 2/1 5/20 1 7 B E TA 2.6 5 E-02 I .58 E-03 l.1 9E-03 AP ONS-1 4 1 6948005 2/15/20 17 BETA 2.69E-02 l.5 8E-03 1.1 7E-03 AP ONS-2 4 1 6948006 2/1 5/20 1 7 BETA 2.52E-02 l.55E-03 1.20E-03 AP ONS-3 4 1 6948007 2/15/20 1 7 B E TA 2.67E-02 l.57E-03 l.1 7E-03 AP ONS-4 416948008 2/15/20 1 7 BETA 2.78E-02 l.59E-03 1.1 6E-03 AP ONS-5 416948009 2/15/20 1 7 BETA 2.3 1 E-02 1.47 E-03 1.1 7E-03 AP ONS-6 4 1 6948010 2/15/20 1 7 BETA 2.77E-02 l.60E-03 1.1 7E-03 AP NBF 4 1 730600 1 2/22/20 17 B E TA 3.24E-02 I .74E-03 l.1 7E-03 AP SBN 4 1 7306002 2/22/20 17 B E TA 3.22E-02 l.76E-03 l.20E-03 AP DOW 4 1 7306003 2/22/20 17 B E TA 2.73E-02 I .62E-03 l.20E-03 AP COL 4 1 7306004 2/22/20 1 7 BETA 2.87E-02 I .65E-03 1.1 9E-03 AP ONS-1 4 1 7306005 2/22/20 17 B E TA 3.23E-02 I .7 5E-03 1.1 8E-0 3 AP ONS-2 4 1 7306006 2/22/20 1 7 BETA 3.48E-02 l.83E-03 1.2 1 E-03 AP ONS-3 4 1 7306007 2/22/20 1 7 BETA 3.32E-02 l.78E-03 1.1 9E-03 AP ONS-4 4 1 7306008 2/22/20 17 B E TA 3.5 1 E-02 I .82E-03 l.1 8E-03 AP ONS-5 4 1 7306009 2/22/20 1 7 B E TA 3.1 2E-02 I .73E-03 1.20E-03 AP ONS-6 4 1 73060 10 2/22/20 1 7 BETA 2.78E-02 I .63E-03 1.1 9E-03 AP NBF 4 1 774000 1 3/1/2017 BETA 2.50E-02 I .49E-03 l.07E-03 AP SBN 4 1 7740002 3/1/20 1 7 BETA 2.2 1 E-02 I .47E-03 1.1 7E-03 AP DOW 4 1 7740003 3/1/20 1 7 BETA 2.26E-02 l.46E-03 1. I 3E-03 AP COL 4 1 7740004 3/1/2 0 1 7 BETA 2.46E-02 1.47E-03 I .05E-03 AP ONS-1 4 1 7740005 3/1/20 1 7 BETA 2.76E-02 l.60E-03 1. I 2E-03 AP ONS-2 417740006 3/1/20 1 7 BETA 2.34E-02 I .44E-03 1.06E-03 AP ONS-3 4 1 7740007 3/1/20 1 7 BETA 2.52£-02 1.54E-03 1.1 3E-03 AP ONS-4 4 1 7740008 3/1/20 1 7 BETA 2.20E-02 1.44E-03 1.1 2E-03 AP ONS-5 4 1 7740009 3/1/20 1 7 BETA 2.56E-02 1.6 1 E-03 1.22E-03 AP ONS-6 4 1 77400 10 3/1/20 1 7 BETA 2.3 I E-02 I .47E-03 l.1 2E-03 AP NBF 4 1 826200 1 3/8/20 1 7 BETA 2.0 I E-02 I .34E-03 l.1 7E-03 AP SBN 4 1 8262002 3/8/20 1 7 BETA 2.1 9 E-02 1.4 1 E-03 1.19E-03 AP DOW 4 1 8262003 3/8/20 1 7 B ETA l.86E-02 I .30E-03 l.1 8E-03 AP COL 4 1 8262004 3/8/20 1 7 BETA l.89E-02 I .30E-03 1.1 7£-03 AP ONS-1 4 1 8262005 3/8/20 1 7 B ETA 1.86E-02 I .33E-03 1.23£-03 AP ONS-2 4 1 8262006 3/8/20 1 7 BETA 2.1 4£-02 1.37£-03 1.1 4E-03 AP ONS-3 4 1 8262007 3/8/20 1 7 BETA 2.08£-02 1.39£-03 J .22E-03 AP ONS-4 4 1 8262008 3/8/20 1 7 BETA 1.9 0£-0 2 l.3 3E-03 I .20E-03 AP ONS-5 4 1 8262009 3/8/20 1 7 BETA 2.1 9£-02 I .43E-03 1.22£-03 AP ONS-6 4 1 82620 10 3/8/20 1 7 BETA 2.1 6E-02 I .42E-03 1.2 I E-03 D-3 Donald C. Cook Nuclear Plant Annual Radiolog i ca l Environmental Operating Report 2017 SAMPLE E ND CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3) AP NBF 418792001 3/15/20 1 7 BETA 1.88E-02 l.30 E-03 l. l 7E-03 AP SBN 418792002 3/15/20 1 7 BETA l.96E-02 l .33E-03 l.1 8E-03 AP DOW 4 1 8792003 3/15/2017 BETA 2.06E-0 2 l.37E-03 l.1 9E-03 AP COL 4 1 8792004 3/1 5/2017 BETA 2.14E-02 l.42 E-03 1.24 E-03 AP ONS-1 418792005 3/15/2017 B ETA 2.1 5E-02 1.41 E-03 1.22E-03 AP ONS-2 418792006 3/15/2017 BETA 2.15E-02 1.4 1 E-0 3 l.2 1 E-03 AP ONS-3 4 1 8792007 3/l 5/2017 BETA 2.30E-02 1.46 E-03 1.22E-03 AP ONS-4 418792008 3/15/2017 BETA 2.05E-02 1.38E-03 l.2 l E-03 AP ONS-5 418792009 3/15/2017 BETA l.86 E-02 1.29E-03 l. l 7E-03 AP ONS-6 4 1 8792010 3/1 5/20 1 7 BETA 2.1 4E-02 l.41E-03 l.22E-03 AP NBF 4 1 922700 1 3/22/20 1 7 BETA 2.57E-02 1.55 E-03 1.25E-0 3 AP SBN 4 1 9227002 3/22/20 1 7 BETA 2.0lE-02 1.43E-03 I .35E-03 AP DOW 4 1 9227003 3/22/20 1 7 BETA l.99E-0 2 1.38E-03 I .27E-03 AP COL 4 1 9227004 3/22/20 1 7 BETA 2.04E-02 1.40 E-03 I .28E-03 AP ONS-1 4 1 9227005 3/22/2017 BETA 2.55E-02 1.56E-03 l.29E-03 AP ONS-2 4 1 9227006 3/22/20 1 7 BETA 2.49E-02 1.52E-03 l .24E-03 AP ONS-3 4 1 9227007 3/22/2017 BETA l.99E-02 l.42E-03 1.35E-03 AP ONS-4 4 1 9227008 3/22/20 17 BETA 2.48E-02 1.52 E-03 1.25E-03 AP ONS-5 4 1 9227009 3/22/20 1 7 BETA 2.19E-02 1.45E-03 I .29E-03 AP ONS-6 4 1 9227010 3/22/20 1 7 BETA 2.54E-02 1.61 E-03 1.37E-03 AP NBF 4 1 9655001 3/29/20 1 7 BETA 2.08E-02 1.41 E-03 I .22E-03 AP SBN 4 1 9655002 3/29/20 1 7 BETA l.97E-02 l.44E-0 3 I .33E-03 AP DOW 4 1 9655003 3/29/20 1 7 BETA l.94E-02 1.38E-03 1.24E-03 AP COL 4 1 9655004 3/29/20 1 7 BETA 2.06E-02 1.41 E-03 1.24E-03 AP ONS-1 4 1 9655005 3/29/20 17 BETA l.91 E-02 1.37 E-03 1.24E-03 AP ONS-2 4 1 9655006 3/29/20 1 7 BETA l.72 E-0 2 1.3 1 E-0 3 l.25E-03 AP ONS-3 4 1 9655007 3/29/2017 BETA 2.08E-02 1.45E-03 1.28E-03 AP ONS-4 4 1 9655008 3/29/20 1 7 BETA 1.75E-02 1.28E-03 l.1 9E-03 AP ONS-5 4 1 9655009 3/29/20 1 7 BETA I .84E-02 1.35 E-03 l.25E-03 AP ONS-6 4 1 9655010 3/29/20 1 7 BETA 1.79 E-02 1.33E-03 1.26E-03 AP NBF 420833001 3/29/20 1 7 Ac-228 2.46E-04 4.32E-04 l.50E-03 u AP NBF 42083300 1 3/29/20 1 7 Ag-1 08m -2.6 1 E-05 6.88E-05 2.1 8E-04 u AP NBF 42083300 1 3/29/20 17 Ag-I I Om -6.38E-05 l .44E-0 4 4.56 E-04 u AP NBF 420833001 3/29/20 1 7 Ba-1 40 8.1 7E-0 3 1.64 E-02 5.58E-02 u AP NBF 42083300 1 3/29/20 1 7 Be-7 l.27E-01 9.07E-03 5.42E-03 AP NBF 42083300 1 3/29/20 17 Ce-141 -8.39E-04 4.93E-04 l.23E-03 u AP NBF 420833001 3/29/2017 Ce-1 44 -7.lSE-04 5.42E-04 I .49E-03 u AP NBF 420833001 3/29/2017 Co-57 6.99E-05 6.1 4E-05 2.05E-04 u AP NBF 42083300 1 3/29/20 1 7 Co-58 -2.53E-05 2.02E-04 6.77E-04 u AP NBF 420833001 3/29/20 1 7 Co-60 2.26E-04 1.32E-04 5.02E-04 u AP NBF 420833001 3/29/2017 C r-51 -5.69E-03 3.76E-03 1.02E-02 u AP NBF 420833001 3/29/20 1 7 Cs-1 34 -1.82 E-05 8.38E-05 2.54 E-04 u AP NBF 420833001 3/29/20 1 7 Cs-1 37 I. IS E-05 l.04E-04 3.38E-04 u AP NBF 42083300 1 3/29/2017 Fe-59 -1.11 E-04 6.0SE-04 l.97E-03 u AP NBF 420833001 3/29/20 1 7 1-1 3 1 9.00E-02 4.99E-02 1.74 E-Ol u AP NBF 420833001 3/29/2017 K-40 -1.03 E-03 l.69E-03 6.39E-03 u AP NBF 420833001 3/29/2017 La-1 40 1.2 1 E-03 6.7 1 E-03 2.24E-02 u AP NBF 420833001 3/29/2017 Mn-54 l.1 7E-04 1.06E-04 3.90E-04 u AP NBF 420833001 3/29/2017 Nb-95 -2.44E-05 2.30E-04 7.20E-04 u AP NBF 420833001 3/29/2017 Ru-1 03 -1.63E-04 3.1 9E-04 9.88 E-04 u D-4 Don a ld C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END C O NC STD.DE V. MDC FLAGS T YP E ST A TION LSN D ATE NUC LID E (p Ci/m 3) (pCi/m3) (pC i/m 3) AP NBF 42083300 1 3/29/20 1 7 Ru-1 06 -4.86E-04 l.04E-03 2.73E-0 3 u AP NBF 42083300 1 3/29/20 1 7 Sb-1 24 l.49E-04 3.82E-04 1.37E-0 3 u AP NBF 42083300 1 3/29/20 17 Sb-1 25 -l.70 E-04 2.42E-04 7.40E-0 4 u AP NBF 42083300 1 3/29/20 1 7 Se-75 -1.1 4E-05 I .56E-04 5.30E-04 u AP NBF 42083300 1 3/29/20 1 7 T h-228 -7.89E-05 I .70E-04 5.72E-04 u AP NBF 42083300 1 3/29/20 1 7 Zn-65 6.69E-05 2.22E-04 7.7 1 E-04 u AP NBF 42083300 1 3/29/20 1 7 Zr-95 8.1 4E-05 3.84E-04 l.20E-03 u AP SBN 420833002 3/29/20 1 7 Ac-228 4.5 2E-05 4.95E-04 J.73E-03 u AP SBN 420833002 3/29/20 1 7 Ag-108m l.33E-04 7.56 E-05 2.45E-04 u AP SBN 420833002 3/29/20 17 Ag-I I O m -l.4 8E-04 l.87E-04 4.40E-04 u AP SBN 420833002 3/29/20 1 7 Ba-1 40 -3.02E-02 I.74E-02 4.47E-02 u AP SBN 420833002 3/29/20 1 7 Be-7 l.0 2E-OI 8.40E-03 6.1 2E-0 3 AP SBN 420833002 3/29/20 1 7 Ce-1 4 1 -5.15 E-04 5.40 E-04 I .57E-03 u AP SBN 420833002 3/29/20 1 7 Ce-1 44 4.38E-05 4.91E-04 l.58E-03 u AP SBN 420833002 3/29/20 1 7 Co-57 -5.93E-05 7.07 E-05 2.1 I E-04 u AP SBN 420833002 3/29/20 1 7 Co-58 4.6 4 E-05 l.22 E-04 3.77E-04 u AP SBN 420833002 3/29/20 1 7 Co-60 2.35E-05 l.22 E-04 4.06E-04 u AP SBN 420833002 3/29/20 1 7 Cr-5 1 -1.70E-03 3.9 1 E-03 l.24E-02 u AP SBN 420833002 3/29/20 1 7 Cs-1 34 -I .30E-05 l.03E-04 3.30E-04 u AP SBN 420833002 3/29/20 1 7 Cs-1 37 l.87E-05 9.1 5 E-05 3.08E-04 u AP SBN 420833002 3/29/20 1 7 Fe-59 2.40E-04 5.70E-04 l.97E-03 u AP SBN 420833002 3/29/20 1 7 1-13 1 4.1 9E-02 5.05E-02 1.56E-O I u AP SBN 420833002 3/29/20 1 7 K-40 1.0I E-0 3 I .60E-03 5.80E-03 u AP SBN 420833002 3/29/20 1 7 La-1 40 -6.39E-0 3 6.28E-03 I.68E-02 u AP SBN 420833002 3/29/20 17 M n-54 -6.6 8 E-05 1.1 4E-0 4 3.4 1 E-0 4 u AP SBN 420833002 3/29/20 1 7 Nb-95 3.1 2E-05 2.45E-04 7.09E-04 u AP SBN 420833002 3/29/20 1 7 Ru-1 03 -2.5 9E-04 2.02E-04 5.48E-0 4 u AP SBN 420833002 3/29/20 1 7 Ru-1 06 1.27E-03 I .08E-03 3.76E-03 u AP SBN 420833002 3/29/20 1 7 Sb-1 24 -9.99E-04 6.34E-04 1.40E-03 u AP SBN 420833002 3/29/20 1 7 Sb-1 25 -3.95E-04 2.96E-04 6.66E-04 u AP SBN 420833002 3/29/20 1 7 Se-75 1.6 1 E-04 l.52E-04 5.26E-04 u AP SBN 420833002 3/29/20 1 7 Th-228 -6.1 8E-06 I .56E-04 5.47E-04 u AP SBN 420833002 3/29/20 1 7 Zn-65 -2.89E-04 2.7 1 E-04 7.5 1 E-04 u AP SBN 420833002 3/29/20 17 Zr-95 I .38E-04 3.66E-04 1.04E-03 u AP DOW 420833003 3/29/20 1 7 Ac-228 9.0 5 E-04 6.49E-04 2.45E-03 u A P DOW 420833003 3/29/20 1 7 Ag-I 08 111 1.2 1 E-04 l.04E-04 3.86E-0 4 u AP DOW 420833003 3/29/20 17 A g-11 0 111 2.25E-04 I .49E-04 6.49E-04 u AP DOW 420833003 3/29/20 1 7 Ba-1 40 -7.54E-04 2.52E-02 8.43E-0 2 u AP DOW 420833003 3/29/20 1 7 Be-7 l.23E-OI 1.1 8E-02 9.22E-03 AP DOW 420833003 3/29/20 1 7 Ce-1 41 -3.20E-04 4.40E-04 l.32E-03 u AP DOW 420833003 3/29/20 1 7 Ce-144 -5.06E-04 5.60E-04 l.68E-03 u AP DOW 420833003 3/29/20 1 7 Co-57 -4.34E-05 7.1 4E-05 2.24E-04 u AP DOW 420833003 3/29/20 1 7 Co-58 -3.29E-04 2.69E-04 6.33E-04 u AP DOW 420833003 3/29/20 1 7 Co-60 -1.30E-06 l.53E-04 5.I I E-04 u AP DOW 420833003 3/29/20 1 7 Cr-5 1 5.4 0 E-04 5.1 5E-03 l.64E-02 u AP DOW 420833003 3/29/20 1 7 Cs-1 34 3.73E-05 I .52E-04 5.1 8E-04 u AP DOW 420833003 3/29/20 17 Cs-1 3 7 3.36E-0 5 l.57E-04 5.33E-0 4 u AP DOW 420833003 3/29/20 1 7 Fe-59 -1.4 8E-03 I .03E-03 2.36E-03 u AP D OW 420833003 3/29/20 1 7 l-1 31 l.49 E-02 4.89E-02 1.60E-O I u AP DOW 420833003 3/29/20 1 7 K-40 -l.1 9E-03 I .80E-03 6.49E-03 u D-5 Donald C. Cook Nuclear Plant Annual Radiological E nv ironment a l Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3) AP DOW 420833003 3/29/2017 La-140 5.3 l E-03 1.2 0£-02 4.29£-02 u AP DOW 420833003 3/29/2017 Mn-54 1.45£-05 1.22£-04 4.07£-04 u AP DOW 420833003 3/29/2017 Nb-95 -7. l IE-05 1.82£-04 5.24£-04 u AP DOW 420833003 3/29/2017 Ru-I 03 1.76£-04 3.58£-04 1.28£-0 3 u AP DOW 420833003 3/29/2017 Ru-10 6 5.50£-04 1.45£-03 5.05£-03 u AP DOW 420833003 3/29/2017 Sb-124 -7.42£-04 7.91E-04 1.58£-0 3 u AP DOW 420833003 3/29/2017 Sb-125 -3.78£-04 2.57£-04 6.00E-04 u AP DOW 420833003 3/29/2017 Se-75 -2.0lE-05 2.1 6£-04 6.9 1£-04 u AP DOW 420833003 3/29/2017 T h-228 3.49£-04 3.67£-04 7.74£-04 u AP DOW 420833003 3/29/2017 Zn-65 3.37£-04 3.19£-04 1.28£-03 u AP DOW 420833003 3/29/20 1 7 Z r-95 -1.92£-0 4 4.04£-04 1.16£-03 u AP COL 420833004 3/29/2017 Ac-228 -1.55£-04 4.60£-04 1.62£-0 3 u AP COL 420833004 3/29/2017 Ag-108m -3.27£-05 9.92£-05 3.1 8£-04 u AP COL 420833004 3/29/2017 Ag-I I Om 5.79£-05 2.00E-04 6.7 1 E-04 u AP COL 420833004 3/29/2017 Ba-140 -1.76£-02 1.71E-02 4.57£-02 u AP COL 420833004 3/29/2017 Be-7 1.22£-01 8.64£-03 7.86£-03 AP COL 420833004 3/29/2017 Ce-141 -4.79£-04 5.65£-04 1.8 I E-03 u AP COL 420833004 3/29/2017 Ce-144 -7.44£-04 5.85£-04 1.77£-03 u AP C OL 420833004 3/29/2017 Co-57 -9.7 1 E-0 5 7.03£-05 2.08£-04 u AP COL 420833004 3/29/2017 Co-58 -4.17£-04 2.55£-04 5.3 I E-04 u AP C OL 420833004 3/29/2017 Co-60 2.06£-04 1.1 2£-04 4.72£-04 u AP COL 420833004 3/29/2017 Cr-5 1 -3.08£-03 4.88£-03 1.54£-02 u AP C OL 420833004 3/29/2017 Cs-134 1.82£-04 1.68£-04 5.94£-04 u AP C OL 420833004 3/29/2017 Cs-137 -4.93£-05 1.2 0£-04 3.66£-04 u AP COL 420833004 3/29/2017 Fe-59 1.58£-04 5.39£-04 1.83£-03 u AP COL 4 20833004 3/29/2017 1-1 31 -9.49£-03 5.86£-02 1.72£-0 1 u AP COL 420833004 3/29/2017 K-40 -3.38E-04 1.83£-03 6.52£-03 u AP COL 4 20833004 3/29/2017 La-1 40 -2. lO E-03 9.65£-03 3.1 l E-02 u AP COL 420833004 3/29/2017 Mn-54 -6.6 7£-05 1.1 7£-04 3.33£-04 u AP COL 420833004 3/29/2017 Nb-95 -1.44£-04 2.90£-04 8.54E-04 u AP COL 420833004 3/29/2017 Ru-103 1.20£-04 2.90£-04 1.01 E-03 u AP COL 420833004 3/29/2017 Ru-I 06 1.47£-03 1.16£-03 4.20£-03 u AP COL 420833004 3/29/20 1 7 Sb-124 5.84£-04 7.30E-04 2.76£-03 u AP COL 420833004 3/29/2017 Sb-125 1.15£-04 3.00E-04 1.03£-03 u AP COL 420833004 3/29/2017 Se-75 6.98£-06 1.98£-04 6.71£-04 u AP COL 420833004 3/29/2017 Th-228 -3.38£-04 2.06£-04 5.93£-04 u AP COL 420833004 3/29/2017 Z n-65 -2.11£-04 3.26£-04 8.96£-04 u AP COL 420833004 3/29/2017 Z r-95 1.57£-04 4.17£-04 1.42£-03 u AP ONS-1 420833005 3/29/2017 Ac-228 -1.52£-04 4.19£-04 1.28£-03 u AP ONS-1 420833005 3/29/2017 Ag-108m 7.84E-05 6.94£-05 2.50£-04 u AP ONS-1 420833005 3/29/2017 Ag-llOm -1.49£-05 1.59£-04 5.36£-04 u AP ONS-1 420833005 3/29/2017 Ba-140 -2.93£-03 1.42£-02 4.5 1£-02 u AP ONS-1 420833005 3/29/2017 Be-7 1.13£-01 8.99£-03 5.05£-03 AP ONS-1 420833005 3/29/2017 Ce-141 -1.17£-03 5.97£-04 I .42£-03 u AP ONS-1 420833005 3/29/2017 Ce-14 4 4.63£-04 5.05£-04 1.69£-03 u AP ONS-1 420833005 3/29/20 1 7 Co-57 -5.86 E-05 6.47£-05 1.89£-04 u AP ONS-1 420833005 3/29/2017 Co-58 -7.26E-05 1.40£-04 4.28£-04 u AP ONS-1 420833005 3/29/2017 Co-60 -4.05£-06 I.IO E-04 3.56£-04 u AP ONS-1 420833005 3/29/2017 Cr-5 1 3.07£-03 4.44£-03 1.55£-02 u AP ONS-1 420833005 3/29/2017 Cs-1 34 1.31£-04 1.5 5£-04 4.90£-04 u D-6 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 S AMP LE E ND C O NC ST D.DE V. MDC FLA G S T YP E STATI O N L SN D ATE NUCL ID E (pC i/m 3) (pCi/m3) (pCi/m 3) A P ONS-1 420833005 3/29/2 01 7 Cs-1 37 -9.9 7£-0 5 1.1 0£-0 4 3.03£-0 4 u AP ONS-1 420833005 3/29/20 1 7 Fe-59 4.0 0E-04 4.0 I E-04 1.59£-0 3 u AP ONS-1 420833005 3/29/20 1 7 1-1 3 1 3.33£-02 4.1 8E-02 1.4 8£-0 I u AP ONS-1 420833005 3/29/20 1 7 K-40 8.45£-04 1.59£-03 6.38£-03 u AP ONS-1 420833005 3/29/20 17 La-1 40 -6.53£-03 6.3 1£-03 1.33£-02 u AP ONS-1 420833005 3/29/20 1 7 Mn-54 -5.87£-05 1.1 4£-04 3.58£-04 u AP ONS-1 420833005 3/29/20 1 7 Nb-95 3.90E-05 2.45£-04 7.72E-04 u AP ONS-1 420833005 3/29/20 17 Ru-1 03 -l.28E-04 3.04E-04 9.49£-04 u AP ONS-1 420833005 3/29/20 1 7 Ru-I 06 5.1 5£-05 1.05£-03 3.05£-03 u AP ONS-1 420833005 3/29/20 1 7 Sb-1 24 1.94£-04 6.0 I E-04 2.06E-03 u AP ONS-1 420833005 3/29/20 1 7 Sb-1 25 1.22£-05 2.29£-04 6.86£-04 u AP ONS-1 420833005 3/29/2 01 7 Se-75 1.19£-0 6 1.53£-04 5.23£-0 4 u AP ONS-1 420833005 3/29/20 1 7 T h-228 -4.5 5£-04 2.05E-04 5.36£-0 4 u A P ONS-1 420833005 3/29/20 1 7 Z n-65 -3.34E-0 4 2.54E-04 5.76£-0 4 u AP ONS-1 420833005 3/29/20 1 7 Z r-95 1.23£-04 3.59£-04 1.20£-03 u AP ONS-2 420833006 3/29/20 1 7 Ac-228 -3.5 7£-04 4.83£-04 1.58£-0 3 u AP ONS-2 420833006 3/29/20 1 7 Ag-108111 5.4 1£-05 7.53£-05 2.62£-04 u AP ONS-2 420833006 3/29/20 1 7 Ag-I I Om -9.20£-05 I .42E-04 4.3 1 E-04 u AP ONS-2 420833006 3/29/20 17 Ba-1 40 1.06£-02 1.66E-02 5.7 1£-02 u AP ONS-2 420833006 3/29/20 1 7 Be-7 1.1 3£-0 1 8.45£-03 4.22£-03 AP ONS-2 420833006 3/29/20 17 Ce-1 4 1 -1.22£-03 5.80E-04 l.33E-03 u AP ONS-2 420833006 3/29/20 1 7 Ce-1 44 -4.89£-04 5.2 1 E-04 1.52E-03 u AP ONS-2 420833006 3/29/20 1 7 Co-57 4.9 0£-05 5.83£-05 1.94£-04 u AP ONS-2 420833006 3/29/20 1 7 Co-58 5.32E-05 2.3 1£-04 7.1 4£-04 u AP ONS-2 420833006 3/29/2 01 7 Co-60 -1.41 E-0 4 1.3 1£-04 3.36£-0 4 u AP ONS-2 420833006 3/29/20 1 7 C r-5 1 -3.0 6£-03 4.07£-03 1.28£-02 u AP ONS-2 420833006 3/29/20 1 7 Cs-1 34 2.1 4E-04 1.1 9£-04 4.30£-0 4 u AP ONS-2 420833006 3/29/20 1 7 Cs-1 37 -2.2 7£-06 1.03£-04 3.3 1£-04 u AP ONS-2 420833006 3/29/20 1 7 Fe-59 -3.09£-04 5.37£-04 1.60£-03 u AP ONS-2 420833006 3/29/20 1 7 1-13 1 -4.55£-02 4.02E-02 1.1 5£-0 1 u AP ONS-2 420833006 3/29/20 1 7 K-40 -1.89£-03 I .65E-03 5.87£-03 u AP ONS-2 420833006 3/29/20 1 7 La-1 40 -3.15£-03 5.86£-03 1.62£-02 u AP ONS-2 420833006 3/29/20 1 7 Mn-54 -1.49£-05 8.38£-05 2.77£-04 u AP ONS-2 420833006 3/29/20 17 Nb-95 6.04£-05 2.75£-04 7.98E-04 u AP ONS-2 420833006 3/29/20 1 7 Ru-1 03 -8.1 3£-05 2.7 1£-04 8.58E-04 u AP ONS-2 420833006 3/29/20 17 R u-1 06 -5.2 4£-0 4 8.42£-04 2.46£-0 3 u AP ONS-2 420833006 3/29/20 1 7 Sb-1 24 -7.34E-04 5.69£-04 1.08£-0 3 u AP ONS-2 420833006 3/29/2 01 7 Sb-1 25 3.0 3£-04 2.63£-04 9.1 9£-0 4 u AP ONS-2 420833006 3/29/20 1 7 Se-75 -1.46£-05 1.55£-04 5.24£-04 u AP ONS-2 420833006 3/29/20 1 7 T h-228 1.0 6£-04 2.46£-04 5.77£-04 u AP ONS-2 420833006 3/29/20 1 7 Zn-65 -2.90E-04 2.46£-04 6.1 6£-04 u AP ONS-2 420833006 3/29/20 1 7 Zr-95 4.08£-04 3.65£-04 1.29£-03 u AP ONS-3 420833007 3/29/20 1 7 Ac-228 4.46£-04 4.57£-04 1.66£-03 u AP ONS-3 420833007 3/29/20 1 7 Ag-1 08m -7.22£-06 8.93£-05 2.94£-04 u AP ONS-3 420833007 3/29/20 17 Ag-11 0 111 -9.83£-05 1.74£-04 4.89£-04 u AP ONS-3 420833007 3/29/20 1 7 Ba-140 3.26£-03 2.04£-02 6.80£-02 u AP ONS-3 420833007 3/29/20 17 Be-7 1.2 IE-01 9.56£-03 6.85£-0 3 AP ONS-3 420833007 3/29/20 17 Ce-1 4 1 -5.95£-0 5 5.06£-04 1.57£-0 3 u AP ONS-3 4 20833007 3/29/20 1 7 Ce-1 44 -1.07£-0 3 5.7 7£-04 1.3 1 E-03 u AP ONS-3 420833007 3/29/20 1 7 Co-57 4.68£-05 7.55£-05 2.47£-04 u D-7 Donald C. Cook Nuclear Plant Annual Radiological En v ironmental Operating Report 2017 SAMP L E E ND CONC ST D.D EV. MD C FLAGS TYPE STATION LSN D ATE NUCLIDE (pCi/m3) (pCi/m3) (pC i/m3) AP ONS-3 420833007 3/29/20 1 7 Co-58 2.78 E-04 2.33E-04 8.37E-04 u AP ONS-3 420833007 3/29/20 1 7 Co-60 3.86E-06 9.77E-05 3.28E-04 u AP ONS-3 420833007 3/29/20 1 7 C r-5 1 -5.76E-03 4.82E-03 1.32E-02 u AP ONS-3 420833007 3/29/20 1 7 Cs-1 34 -3.56E-05 l.29E-04 3.93E-04 u AP ONS-3 420833007 3/29/20 1 7 Cs-1 37 -5.97E-05 9.28E-05 2.64E-04 u AP ONS-3 420833007 3/29/20 1 7 Fe-59 I .15E-03 7.06E-04 2.73E-03 u AP ONS-3 420833007 3/29/20 1 7 1-1 3 1 -1.04E-02 4.79E-02 1.57E-O I u AP ONS-3 420833007 3/29/20 1 7 K-40 -8.06E-04 1.27E-03 4.64E-03 u AP ONS-3 420833007 3/29/20 1 7 La-1 40 -3.30E-03 7.23E-03 2. I OE-02 u AP ONS-3 420833007 3/29/20 1 7 Mn-54 -I .29E-04 l.34E-04 3.47E-04 u AP ONS-3 420833007 3/29/2017 Nb-95 4.6 1 E-05 1.9 1 E-04 6.38E-04 u AP ONS-3 420833007 3/29/20 1 7 Ru-I 03 -3.89E-05 3.1 5E-04 1.02E-03 u AP ONS-3 420833007 3/29/2017 R u-1 06 2.60E-03 l.1 6E-03 2.42E-03 UJ AP ONS-3 420833007 3/29/20 1 7 Sb-1 24 -6.86E-04 5.24E-04 l.33E-03 u AP ONS-3 420833007 3/29/20 1 7 Sb-1 25 l.84E-04 2.40 E-04 8.50E-04 u AP ONS-3 420833007 3/29/2017 Se-75 -9.45E-05 1.60E-04 5.1 3E-04 u AP ONS-3 420833007 3/29/20 17 T h-228 8.58E-05 1.75E-04 5.92E-04 u AP ONS-3 420833007 3/29/20 1 7 Zn-65 6.67E-05 2.74E-04 9.57E-04 u AP ONS-3 420833007 3/29/20 1 7 Zr-95 -2.29 E-04 4.1 3E-04 l.20E-03 u AP ONS-4 420833008 3/29/2017 Ac-228 -9.80 E-04 5.58E-04 1.37E-03 u AP ONS-4 420833008 3/29/2017 Ag-1 08m I. l IE-04 9.77E-05 3.46E-04 u AP ONS-4 420833008 3/29/20 1 7 Ag-ll Om 7.63E-05 2.35E-04 7.83E-04 u AP ONS-4 420833008 3/29/20 1 7 Ba-140 -1.21 E-02 2.08E-02 6.3 1 E-02 u AP ONS-4 420833008 3/29/2017 Be-7 l.20E-0 1 9.50E-03 7.1 5E-03 AP ONS-4 420833008 3/29/20 1 7 Ce-1 41 -1.25E-04 4.33E-04 1.45E-03 u AP ONS-4 420833008 3/29/20 1 7 Ce-1 44 -3.2 5 E-05 5.4 1 E-04 l.85E-03 u AP ONS-4 420833008 3/29/20 1 7 Co-57 1.43E-05 6.77E-05 2.36E-04 u AP ONS-4 420833008 3/29/2017 Co-58 9.27E-05 2.05E-04 7.08E-04 u AP ONS-4 420833008 3/29/20 1 7 Co-60 -3.03E-05 1.06E-04 3.33E-04 u AP ONS-4 420833008 3/29/20 1 7 Cr-51 1.24E-03 4.78E-03 l.63E-02 u AP ONS-4 420833008 3/29/20 17 Cs-134 9.65E-05 l.30E-04 4.60E-04 u AP ONS-4 420833008 3/29/20 1 7 Cs-137 7.05E-05 l.1 8E-04 4.I OE-04 u AP ONS-4 420833008 3/29/20 1 7 Fe-59 4.92E-05 7.1 2E-04 2.29E-03 u AP ONS-4 420833008 3/29/20 1 7 1-1 31 -7.0I E-02 5.1 8E-02 1.40E-OI u AP ONS-4 420833008 3/29/20 1 7 K-40 9.34E-06 1.6 1 E-03 5.97E-03 u AP ONS-4 420833008 3/29/20 1 7 La-1 40 I.13E-02 6.6 1 E-03 2.83E-02 u AP ONS-4 420833008 3/29/2017 Mn-54 6.27E-05 9.35E-05 3.39E-04 u AP ONS-4 420833008 3/29/20 1 7 Nb-95 -8.41E-05 2.20E-04 6.4 1 E-04 u AP ONS-4 420833008 3/29/20 1 7 Ru-1 03 2.45E-06 3.37E-04 9.95E-04 u AP ONS-4 420833008 3/29/20 1 7 Ru-I 06 -1.12E-03 9.4 1 E-04 2.3 I E-03 u AP ONS-4 420833008 3/29/20 1 7 Sb-1 24 -5.54 E-04 5.9 1 E-04 1.39E-03 u AP ONS-4 420833008 3/29/20 1 7 S b-1 25 8.84E-05 2.30E-04 7.95E-04 u AP ONS-4 420833008 3/29/20 1 7 Se-75 -I.06E-05 I.82E-04 5.47E-04 u AP ONS-4 420833008 3/29/20 17 T h-228 -I.79E-04 1.73E-04 5.46E-04 u AP ONS-4 420833008 3/29/2017 Zn-65 2.67E-04 2.82 E-04 l.04E-03 u AP ONS-4 420833008 3/29/2017 Zr-95 3.55E-04 3.73E-04 I .36E-03 u AP ONS-5 420833009 3/29/20 1 7 Ac-228 4.23E-04 4.50E-04 l.59E-03 u AP ONS-5 420833009 3/29/2017 Ag-1 08m -9.48 E-05 8.8 1 E-05 2.54E-04 u AP ONS-5 420833009 3/29/20 1 7 Ag-I I Om 2.65E-05 1.75E-04 6.08E-04 u AP ONS-5 420833009 3/29/20 1 7 Ba-140 1.3 6E-02 1.3 5E-02 4.90E-02 u D-8 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pC i/m3) (pCi/m3) (pCi/m3) AP ONS-5 420833009 3/29/20 17 Be-7 l.1 2E-OI 9.28E-03 4.69E-0 3 AP ONS-5 420833009 3/29/20 1 7 Ce-1 4 1 1.1 7E-03 9.83E-04 l.39E-03 u AP ONS-5 420833009 3/29/20 1 7 Ce-1 44 1.94E-04 4.95£-04 1.63£-03 u AP ONS-5 420833009 3/29/20 1 7 Co-57 -8.80E-05 6.92£-05 l.92E-04 u AP ONS-5 420833009 3/29/20 17 Co-58 6.0 I E-06 2.03£-04 6.93E-04 u AP ONS-5 420833009 3/29/20 1 7 Co-60 I .29E-05 6.77£-05 2.35E-04 u AP ONS-5 420833009 3/29/20 1 7 Cr-5 1 1.03£-02 5.03E-03 l.5 3E-02 u AP ONS-5 420833009 3/29/20 1 7 Cs-1 34 8.76E-05 l.34E-04 4.56E-04 u AP ONS-5 420833009 3/29/20 1 7 Cs-137 1.81 E-04 9.37£-05 3.27£-04 u AP ONS-5 420833009 3/29/20 17 Fe-59 9.7 1 E-04 7.29E-04 2.70E-03 u AP ONS-5 420833009 3/29/20 1 7 1-1 3 1 5.97£-02 5.08E-02 l.79 E-OI u AP ONS-5 420833009 3/29/20 1 7 K-40 -l.36 E-03 I .42E-03 4.88E-0 3 u AP ONS-5 420833009 3/29/20 1 7 La-1 40 -1.27£-02 8.06£-03 1.32E-0 2 u AP ONS-5 420833009 3/29/20 17 Mn-54 6.04£-05 1.08£-04 3.89£-0 4 u AP ONS-5 420833009 3/29/20 17 Nb-95 -3.25E-04 2.44E-04 5.56E-04 u AP ONS-5 420833009 3/29/20 17 Ru-103 l.46E-04 3.04E-04 l.04 E-03 u AP ONS-5 420833009 3/29/20 1 7 Ru-I 06 -4.86E-04 9.02E-04 2.67£-03 u AP ONS-5 420833009 3/29/20 17 Sb-124 -5.68 E-04 4.23£-04 O.OOE+OO u AP ONS-5 420833009 3/29/20 1 7 Sb-125 3.65£-04 2.66£-04 9.43E-04 u AP ONS-5 420833009 3/29/20 1 7 Se-75 -1.06E-04 1.77£-04 5.77£-04 u AP ONS-5 420833009 3/29/20 1 7 Th-228 5.22E-05 1.74£-04 6.17£-04 u AP ONS-5 420833009 3/29/20 17 Z n-65 -3.36E-04 2.52E-04 5.65E-04 u AP ONS-5 420833009 3/29/20 1 7 Zr-95 -1.92E-04 3.48E-04 9.95E-04 u AP ONS-6 4208330 10 3/29/20 17 Ac-228 1.03£-03 5.79£-04 l.70 E-03 u AP ONS-6 420833010 3/29/20 17 Ag-1 08m -1.0 5£-05 8.1 6E-05 2.58E-0 4 u AP ONS-6 4208330 10 3/29/2017 Ag-1 I Om -3.75£-06 I .58E-04 5.07£-04 u AP ONS-6 4208330 1 0 3/29/20 1 7 Ba-1 40 -5.02E-03 I .60E-02 5.26 E-0 2 u AP ONS-6 4208330 10 3/29/2017 Be-7 I .05E-O I 7.97E-03 5.84E-03 AP ONS-6 4208330 10 3/29/20 1 7 Ce-141 l.28E-04 5.09£-04 l.52E-0 3 u AP ONS-6 420833010 3/29/20 1 7 Ce-1 44 4.34E-04 5.50E-04 1.82£-03 u AP ONS-6 4208330 1 0 3/29/20 1 7 Co-57 -6.36 E-05 6.28E-05 l.82E-04 u AP ONS-6 4208330 10 3/29/20 1 7 Co-58 2.7 1 E-04 I .62E-04 5.85E-04 u AP ONS-6 4208330 10 3/29/20 1 7 Co-60 l.13 E-04 1.09£-04 3.95£-04 u AP ONS-6 4208330 10 3/29/20 1 7 Cr-51 I.OOE-03 4.08E-03 l.36E-0 2 u AP ONS-6 4208330 1 0 3/29/20 17 Cs-134 -5.30E-05 1.1 7£-04 3.61E-0 4 u A P ONS-6 4208330 1 0 3/29/20 17 Cs-1 37 -6.1 5£-05 9.93£-05 3.06E-0 4 u AP ONS-6 4208330 10 3/29/20 1 7 Fe-59 1.20£-04 4.75£-04 l.63 E-03 u AP ONS-6 4208330 10 3/29/20 1 7 1-1 3 1 1.60E-O I 9.30E-02 1.20E-OI UI AP ONS-6 4208330 10 3/29/20 1 7 K-40 -l .80E-03 I .48£-03 4.33E-03 u AP ONS-6 4208330 10 3/29/20 1 7 La-1 40 -2.0 I E-03 6.62E-03 2.1 I E-0 2 u AP ONS-6 420833010 3/29/20 1 7 Mn-54 -2.46E-04 l.22 E-04 2.46E-04 u AP ONS-6 4208330 10 3/29/20 1 7 Nb-95 3.00E-05 2.1 5E-04 7.09E-04 u AP ONS-6 420833010 3/29/20 1 7 Ru-1 03 5.00E-04 3.2IE-04 1. 13£-03 u AP ONS-6 420833010 3/29/20 17 Ru-106 -7.84E-04 9.46E-04 2.86E-03 u AP ONS-6 420833010 3/29/20 17 Sb-1 24 6.02E-0 4 5.88E-04 2.17E-03 u AP ONS-6 4208330 1 0 3/29/20 1 7 Sb-125 5.20E-04 3.04E-04 8.32E-04 u AP ONS-6 4208330 1 0 3/29/20 1 7 Se-75 l.7 3E-0 4 1.62£-04 5.59E-04 u AP ONS-6 4208330 10 3/29/20 1 7 Th-228 2.47E-04 3. I OE-04 6.54£-04 u AP ONS-6 4208330 10 3/29/20 1 7 Zn-65 -I.O SE-07 2.36E-04 7.80E-0 4 u AP ONS-6 420833010 3/29/20 1 7 Zr-95 3.89£-04 2.90£-04 1.05£-03 u o:..g Donald C. Cook Nuclear Plant Annual Radiological Env i ronmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3) AP NBF 42023400 1 4/5/2017 B ETA 1.64E-0 2 l.2 6E-03 l.17 E-03 AP SBN 420234002 4/5/20 17 B ETA I .65E-0 2 1.25 E-03 1.1 4£-03 AP DOW 420234003 4/5/2017 B ETA 1.37£-02 I .1 6E-0 3 1.17£-0 3 AP CO L 420234004 4/5/20 17 BETA I .54E-02 1.23£-0 3 1.1 8£-03 AP ONS-1 420234005 4/5/2017 BETA 1.53£-02 1.22E-0 3 1.1 7£-03 AP ONS-2 420234006 4/5/20 17 BETA I .56E-02 I .23£-0 3 I. 1 6E-03 AP ONS-3 420234007 4/5/2017 B ETA l.38E-02 I. 16£-03 I .1 7E-03 AP ONS-4 420234008 4/5/2017 BETA 1.2 1 E-02 1.08£-0 3 1.1 3£-03 AP ONS-5 420234009 4/5/2017 B ETA 1.52 E-02 I .22£-0 3 1.17 E-03 AP ONS-6 420234010 4/5/2017 B ETA 1.37 E-02 1.16 E-03 l.1 7E-03 AP NBF 42076800 1 4/12/20 1 7 BETA 1.53E-02 I .22 E-03 1.22E-03 AP SBN 420768002 4/12/20 1 7 BETA l.50E-0 2 I .2 0E-03 l.20E-03 AP DOW 420768003 4/12/2017 B ETA l.72E-02 1.29£-0 3 l.23E-03 AP COL 420768004 4/12/2017 BETA I .58£-02 1.2 1 E-0 3 l.1 6E-03 AP ONS-1 420768005 4/12/2017 B ETA I .66E-02 I .27£-03 l.2 1 E-03 AP ONS-2 420768006 4/12/2017 B ETA 1.58£-02 I .19 E-0 3 1. I 3E-03 AP ONS-3 420768007 4/12/20 1 7 B ETA l.93E-02 1.37 E-03 1.23£-03 AP ONS-4 420768008 4/1 2/20 1 7 B ETA 1.40E-0 2 1. l 5E-03 l.1 8E-03 AP ONS-5 420768009 4/1 2/20 1 7 BETA l.55 E-02 I .23E-03 1.23 E-03 AP ONS-6 4207680 10 4/12/2017 B ETA l.36E-02 1.15£-0 3 1.2 1 E-0 3 AP NBF 42 1 245001 4/19/2017 BETA 1.55 E-0 2 I .2 4£-03 l.30E-03 AP SBN 42 1 245002 4/19/20 I 7 B ETA 2.21E-02 1.46E-03 1.28£-03 AP DOW 42 1 245003 4/1 9/20 1 7 B ETA l.97E-02 l.39E-03 I .30E-03 AP COL 42 1 245004 4/1 9/20 1 7 B ETA 2.24E-02 1.44£-03 l.24E-03 AP ONS-1 42 1 245005 4/19/20 1 7 B ETA 1.92£-0 2 l.38E-03 1.3 1 E-0 3 AP ONS-2 42 1 245006 4/19/2017 B E TA 2.37£-0 2 l.49E-03 1.24£-03 AP ONS-3 42 1 245007 4/19/20 1 7 B ETA 2.44£-02 l.53E-03 1.29£-03 AP ONS-4 42 1 245008 4/19/20 1 7 BETA 2.27£-02 l.46E-03 1.25£-03 AP ONS-5 42 1 245009 4/19/2017 B E TA 2.29£-0 2 l.52 E-0 3 1.35£-03 AP ONS-6 42 1 2450 1 0 4/19/20 1 7 BETA 2.06£-02 1.41 E-03 1.27£-03 AP NBF 42 1 99500 1 4/26/20 1 7 B E TA I .90 E-02 1.34£-0 3 l.23E-03 AP SBN 42199500 2 4/26/20 1 7 B ETA 1.77£-02 l.28E-0 3 l.2 I E-0 3 AP DOW 42 1 995003 4/26/20 17 B E TA 1.68£-02 l.25E-03 1.22£-03 AP COL 42 1 995004 4/26/20 1 7 B E T A 1.76£-02 1.29E-03 1.2 3£-03 AP ONS-1 42 1 995005 4/26/20 1 7 BETA 2. lO E-02 l.3 9E-03 1.22£-03 AP ONS-2 42 1 995006 4/26/20 1 7 B E T A 1.66£-02 1.27£-03 1.26£-03 AP ONS-3 4 2 1 995007 4/26/20 1 7 B ETA 1.74£-02 1.3 I E-03 1.29£-03 AP ONS-4 421995008 4/26/20 17 B E TA 1.74£-02 1.2 9£-03 1.25E-0 3 AP ONS-5 42 1 995009 4/26/20 1 7 B ETA 1.66£-0 2 1.32£-03 1.36E-03 AP ONS-6 42 1 995010 4/26/20 1 7 B E TA 2.lO E-02 I .43E-03 1.28E-03 AP NBF 422466001 5/3/2017 B E T A 9.90E-03 9.88E-04 1.1 5£-03 M AP SBN 422466002 5/3/2017 B ETA 9.1 6E-03 9.48£-0 4 1.2 0 E-03 M AP DOW 422466003 5/3/20 1 7 B E TA 1.15£-0 2 1.06£-03 1.22£-03 AP COL 422466004 5/3/20 1 7 B ETA 1.17£-0 2 1.04£-03 1.1 7£-03 AP ONS-1 422466005 5/3/20 1 7 B E TA 1.27£-02 1.09£-03 1.2 0£-03 AP ONS-2 422466006 5/3/20 1 7 B ETA I .24E-02 I. I OE-03 l.23E-03 AP ONS-3 422466007 5/3/20 1 7 B ETA 1.07£-02 1.03E-0 3 l.24E-03 AP ONS-4 422466008 5/3/20 1 7 B ETA 9.63E-03 9.72E-0 4 1.2 1 E-03 M AP ONS-5 422466009 5/3/20 1 7 B ETA 9.97E-03 1.42E-03 2.26£-03 M AP ONS-6 4224660 1 0 5/3/20 1 7 B ETA 8.86E-0 3 9.6 1£-04 l.26E-03 M D-10 Don a ld C. Cook Nuclea r Pla n t Annual Radiologic a l Environmental O pe rating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m 3) (pCi/m3) (pCi/m3) AP NBF 423047001 5/10/20 1 7 BETA 2.1 2E-02 l.39E-03 1.1 3E-0 3 AP SBN 423047002 5/10/20 17 BETA 2.1 6E-0 2 l .44E-0 3 l.1 9E-03 AP DOW 423047003 5/10/20 17 BETA I .94E-02 l.36E-03 l.1 8E-0 3 AP COL 423047004 5/10/20 17 BETA 2.34E-02 l.49E-03 l.1 8E-0 3 AP ONS-1 423047005 5/10/2017 BETA 2.30E-02 l.48E-03 l.1 8E-0 3 AP ONS-2 423047006 5/10/20 17 BETA 2.15 E-02 I .39E-03 1.1 2E-03 AP ONS-3 423047007 5/10/20 1 7 BETA 2.1 6E-02 I .43E-03 1.l 7E-03 AP ONS-4 423047008 5/10/20 1 7 BETA 2.1 8E-02 1.42E-03 1.14 E-03 AP ONS-5 423047009 5/10/20 1 7 BETA 2.23E-02 I .48E-03 1.21 E-03 AP ONS-6 4230470 1 0 5/10/20 17 BETA 2.68E-02 l .58E-03 l.16 E-03 AP NBF 42358800 1 5/17/2 017 BETA 2.70E-02 l .57E-03 l .1 6E-03 Al' SBN 423588002 5/17/2 017 BETA 2.47E-02 I .54E-03 1.21E-03 AP DOW 423588003 5/17/20 1 7 BETA 2.48E-0 2 l.51E-03 l. l 7E-03 AP COL 423588004 5/17/20 17 BETA 2.46E-0 2 l .49E-03 1.14 E-03 AP ONS-1 423588005 5/17/20 1 7 BETA 2.22E-02 1.4 3E-03 l.16 E-03 AP ONS-2 423588006 5/17/20 1 7 BETA 2.39E-02 l.52 E-03 l.22 E-03 AP ONS-3 423588007 5/1 7/20 1 7 BETA 2.55E-02 1.51 E-03 1.13E-03 AP ONS-4 423588008 5/17/20 17 BETA 2.9 1 E-02 l.65E-03 l. l 9E-0 3 AP ONS-5 423588009 5/17/20 1 7 BETA 2.25E-02 l .42E-03 1.13E-03 AP ONS-6 423588010 5/17/20 1 7 BETA 2.38E-02 1.51 E-03 l.2 1E-03 AP NBF 424160001 5/24/20 17 BETA I .44E-02 1.1 8E-03 l.23E-03 AP SBN 424160002 5/24/20 17 BETA l.70E-02 1.25E-03 1.18 E-03 AP DOW 424160003 5/24/2017 BETA I .95E-02 l .34E-03 l.19E-03 AP COL 424160004 5/24/20 17 BETA 1.7 1 E-02 l.24E-03 l.16E-03 AP ONS-1 424 1 60005 5/2 4/2 017 BETA l.28E-02 l. l lE-03 l.20E-0 3 Al' ONS-2 424160006 5/24/20 1 7 BETA l.44E-02 l. l 7 E-03 l.20 E-03 A]) ONS-3 424160007 5/24/2017 BETA 1.5 1 E-02 l.l 9E-03 1.19 E-03 AP ONS-4 424160008 5/24/20 1 7 BETA 1.62E-02 1.23 E-03 l.20E-03 AP ONS-5 424160009 5/24/20 17 BETA 1.73E-02 l.24E-03 1.15£-03 AP ONS-6 424160010 5/24/20 17 BETA l.68E-02 l.28E-03 1.25£-03 AP NBF 424597001 5/3 1/20 17 BETA 2.00£-02 l.38E-03 1.1 5£-0 3 AP SBN 424597002 5/3 1/20 17 BETA l.93E-02 l.33E-03 1.11 E-0 3 AP COL 424597004 5/31/20 17 B E TA l.68E-02 1.25£-03 1.1 2E-03 AP ONS-1 424597005 5/3 1/20 17 B E TA l.83E-02 1.3 1£-03 1.14£-03 AP ONS-2 424597006 5/3 1/20 17 BETA 1.88£-02 1.29E-03 1.07£-03 AP ONS-3 424597007 5/3 1/20 17 B E TA 2.0 I E-02 1.35£-03 1.11 E-03 AP ONS-4 424597008 5/3 1/20 1 7 BETA 1.68£-02 1.26E-03 1.14£-03 AP ONS-5 424597009 5/3 1/2017 BETA l.64E-02 1.23E-03 l.lO E-03 AP ONS-6 4245970 1 0 5/31/20 17 BETA l.72E-02 1.27E-03 1.13£-03 AP NBF 42511700 1 6/7/20 1 7 BETA 2.38E-02 1.50E-03 l.1 9E-03 AP SBN 425117002 6/7/20 1 7 BETA 2.66E-02 l.58E-03 l.19 E-03 AP DOW 425117003 6/7/2017 B E TA 2.37£-02 1.51 E-03 1.22E-03 AP COL 425117004 6/7/20 17 BETA 2.1 3E-02 1.40E-03 1.16£-03 AP ONS-1 425117005 6/7/20 1 7 BETA 2.52E-02 l .54E-03 1.18£-03 AP ONS-2 4251 17 006 6/7/20 1 7 BETA 2.42E-02 l.52 E-03 1.20£-03 AP ONS-3 425117007 6/7/20 1 7 BETA 2.46E-02 1.50£-03 1.1 5£-03 AP ONS-4 425117008 6/7/20 1 7 BETA 2.42E-02 1.5 1 E-03 1.18£-03 AP ONS-5 4251 1 7009 6/7/20 1 7 BETA 2.6 1£-0 2 1.54£-03 l. I 5 E-03 AP ONS-6 4251 1 70 1 0 6/7/20 17 BETA 2.5 0£-02 1.54E-03 1.20£-03 AP NBF 42564 1 00 1 6/14/20 1 7 B-TA 2.40£-02 I .50E-03 l.19E-03 D-1 1 Donald C. Cook Nuclear Plant Annual Radio l ogical Environmental Operat i ng Report 20 1 7 S AM P L E E ND C O NC ST D.D E V. MDC F L AGS TYPE STA TION LS N DAT E NU C LID E (pC i/m 3) (pC i/m 3) (pCi/m 3) AP SBN 42564 1 002 6/1 4/20 1 7 BETA 2.94E-02 I .68E-03 l.22E-03 AP DOW 42564 1 003 6/14/2 01 7 BETA 2.89E-02 I .66E-0 3 1.2 1 E-03 AP COL 42564 1 004 6/1 4/20 1 7 BETA 2.67E-02 I .56E-03 l.1 6E-03 AP ONS-1 42564 1 005 6/1 4/20 1 7 BETA 2.54E-02 I .56E-0 3 1.2 1 E-03 AP ONS-2 42564 1 006 6/1 4/2 01 7 BETA 2.79E-0 2 1.5 5 E-0 3 1.0 9E-03 AP ONS-3 42564 1 007 6/1 4/2 01 7 BETA 2.46E-02 I .49E-0 3 I .1 4E-03 AP ONS-4 42564 1 008 6/1 4/20 1 7 BETA 2.76E-02 I .60E-03 I .1 8E-03 AP ONS-5 42564 1 009 6/14/20 1 7 BETA 2.48E-02 1.S I E-0 3 l.1 6E-03 AP ONS-6 42564 1 0 10 6/1 4/20 1 7 BETA 2.54E-02 I .55E-03 l.20E-03 AP NBF 42624500 1 6/2 1/20 1 7 BETA I .79E-0 2 1.32E-0 3 I .25E-03 AP SBN 426245002 6/21/2 01 7 BETA l.84E-0 2 l .33E-0 3 1.23E-03 AP DOW 426245003 6/2 1/20 1 7 BETA 1.84E-0 2 1.34E-0 3 l .24E-03 AP COL 426245004 6/2 1/20 1 7 BETA l.39E-0 2 l.1 5E-03 l.20E-03 AP ONS-1 426245005 6/2 1/20 1 7 BETA 2. I OE-02 I.43E-03 l.26E-03 AP ONS-2 426245006 6/21/20 1 7 BETA I .54E-02 1.25E-03 l .27E-03 AP ONS-3 426245007 6/21/20 1 7 BETA l.76E-02 l.28E-03 l.1 8E-03 AP ONS-4 426245008 6/21/2 01 7 BETA I.95E-02 l.36E-03 1.2 1 E-03 AP ONS-5 426245009 6/2 1/201 7 BETA l.87E-0 2 l.32E-0 3 1.2 0 E-03 AP ONS-6 4262450 10 6/21/2 01 7 BETA l.53E-02 1.23E-03 1.25£-03 AP NBF 42679200 1 6/28/20 1 7 BETA 1.28E-02 1.11 E-0 3 1.1 4E-03 AP SBN 426792002 6/28/20 1 7 BETA 1.60E-02 1.23£-03 1.1 4E-03 AP DOW 426792003 6/28/20 1 7 BETA I .32E-02 I.1 2E-0 3 1.l 3E-03 AP COL 426792004 6/28/20 1 7 BETA 1.37£-02 l.1 6E-03 l.1 8E-03 AP ONS-1 426792005 6/28/2 01 7 BETA 1.45E-0 2 l.1 8E-0 3 l.1 5E-03 AP ONS-2 426792006 6/28/2 01 7 BETA 1.24E-02 1.11 E-0 3 1.1 6E-03 AP ONS-3 426792007 6/28/20 1 7 BETA 1.1 5£-02 l.03E-0 3 I.0 9E-03 AP ONS-4 426792008 6/28/20 1 7 BETA 1.36£-02 1. I 3E-03 1.1 2£-03 AP ONS-5 426792009 6/28/20 1 7 BETA I .20E-02 I .05E-03 l.09E-03 AP ONS-6 4267920 10 6/28/20 1 7 BETA I .30E-02 l.1 2E-03 l.1 5E-03 AP NBF 42935000 1 6/2 8/20 1 7 Ac-228 -3.40E-0 4 4.87£-04 I.68E-03 u AP NBF 42935000 1 6/2 8/2 01 7 Ag-1 08 m -1.80E-05 7.66E-05 2.53E-04 u AP NBF 42935000 1 6/28/20 1 7 Ag-ll Om 5.1 2E-0 5 I .82E-04 6.2 0£-04 u AP NBF 42935000 1 6/28/20 1 7 Ba-1 40 -4.8 1£-03 3.0 I E-0 2 9.8 1 E-02 u AP NBF 42935000 1 6/28/20 1 7 Be-7 l.52E-O l l.20E-02 7.75E-03 AP NBF 42935000 1 6/28/20 1 7 Ce-1 4 1 -9.60E-0 4 8. I I E-04 2.1 7E-03 u AP NBF 42935000 1 6/2 8/2 0 1 7 Ce-1 44 2.6 1 E-04 5.1 9E-0 4 1.82E-03 u AP NBF 42935000 1 6/28/2 0 1 7 Co-57 -5.82E-0 5 8.37E-0 5 2.23E-04 u AP NBF 42935000 1 6/2 8/20 1 7 Co-58 6.84E-05 l.95E-0 4 6.76E-04 u AP NBF 42935000 1 6/2 8/20 1 7 Co-60 -l.9 I E-0 6 9.87£-0 5 3.30E-04 u AP NBF 42935000 1 6/28/20 1 7 C r-51 -8.24E-03 6.33E-03 I.76E-02 u AP NBF 42935000 1 6/28/20 1 7 Cs-1 34 I.OOE-04 I .1 3E-04 3.66E-04 u AP NBF 42935000 1 6/28/20 1 7 Cs-1 3 7 l.63E-04 1.07£-04 3.69E-04 u AP NBF 42935000 1 6/2 8/20 1 7 Fe-59 -l.05E-0 4 6.63E-04 2.1 2E-03 u AP NBF 42935000 1 6/2 8/20 1 7 1-13 1 -2.2 1 E-0 2 1.49£-01 O.O OE+OO u AP NBF 42935000 1 6/28/20 17 K-40 3.63E-0 4 I.1 6E-03 4.27E-03 u AP NBF 42935000 1 6/28/20 1 7 La-1 40 2.1 3E-02 1.47£-02 5.4 I E-02 u AP NBF 42935000 1 6/28/20 1 7 M n-54 -5.43E-06 1.1 7E-04 3.9 1 E-04 u AP NBF 42935000 1 6/28/20 1 7 Nb-95 -3. I 5E-04 2.72E-04 7.36E-04 u AP NBF 42935000 1 6/28/20 17 R u-1 03 -3.30E-0 4 3.33E-04 9.7 8E-04 u AP NBF 42935000 1 6/28/2 01 7 R u-1 06 2.27E-0 4 1.08£-03 3.34E-03 u D-1 2 Don a ld C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCL ID E (pC i/m3) (p Ci/m3) (pCi/m3) AP NBF 42935000 1 6/28/20 1 7 Sb-1 24 -3.43E-04 6.46E-04 1.92E-03 u AP NBF 42935000 1 6/28/20 1 7 Sb-1 25 -1.67E-04 2.52E-04 8.0 l E-04 u AP NBF 429350001 6/28/20 1 7 Se-75 l.06E-04 l.93E-04 6.44E-04 u AP NBF 42935000 1 6/28/20 1 7 Th-228 8.71E-05 l.60E-04 5.68E-04 u AP NBF 42935000 1 6/28/20 1 7 Z n-65 -2.85E-04 3.34E-04 9.70E-0 4 u AP NBF 42935000 1 6/28/20 1 7 Zr-95 -6.07E-04 4.26E-04 l.OSE-0 3 u AP SBN 429350002 6/28/20 1 7 Ac-228 -5.54E-04 4.79E-04 l.4 7 E-03 u AP SBN 429350002 6/28/20 1 7 Ag-1 08m -4.65E-06 7.70E-05 2.54E-0 4 u AP SBN 429350002 6/28/20 1 7 Ag-I I Om -3.03E-04 1.52E-04 2.28E-04 u AP SBN 429350002 6/28/20 1 7 Ba-1 40 -6.30E-02 3.98E-02 9.74E-02 u AP SBN 429350002 6/28/20 1 7 Be-7 l.81E-01 1.25E-02 6.9 1 E-03 AP SBN 429350002 6/28/20 1 7 Ce-1 41 1.42E-03 8.73E-04 l.82E-03 u AP SBN 429350002 6/28/20 1 7 Ce-1 44 2.29E-04 4.80E-04 1.59E-03 u AP SBN 429350002 6/28/20 1 7 Co-57 -4.78E-05 7.33E-05 2.23E-04 u AP SBN 429350002 6/28/20 1 7 Co-58 -2.47E-04 2.35E-04 6.78E-04 u AP SBN 429350002 6/28/20 1 7 Co-60 -9.08£-05 6.76E-05 O.OOE+O O u AP SBN 429350002 6/28/20 1 7 Cr-5 1 4.80E-03 6.44E-03 2.25E-0 2 u AP SBN 429350002 6/28/20 1 7 Cs-134 -3.1 7E-05 1.19E-04 3.6 1 E-0 4 u AP SBN 429350002 6/28/20 17 Cs-137 1.32E-04 9.14E-05 3.37E-04 u AP SBN 429350002 6/28/20 1 7 Fe-59 -9.0 0E-04 6.87E-04 l.56E-0 3 u AP SBN 429350002 6/28/20 17 1-1 3 1 -4.75E-02 l.42E-0 1 O.OOE+OO u AP SBN 429350002 6/28/20 1 7 K-40 1.9 1 E-03 2.09E-03 7.9 7 E-03 u AP SBN 429350002 6/28/20 1 7 La-1 40 5.53E-03 5.68E-03 2.58E-0 2 u AP SBN 429350002 6/28/20 1 7 Mn-54 2.33E-04 l.25E-04 4.69E-0 4 u AP SBN 429350002 6/28/20 1 7 Nb-95 2.SOE-05 l.96E-04 6.36E-0 4 u AP SBN 429350002 6/28/20 1 7 R u-1 03 -6.76E-05 3.38E-04 9.56E-04 u AP SBN 429350002 6/28/20 1 7 Ru-1 06 l.57E-03 9.89E-04 3.59E-03 u AP SBN 429350002 6/28/20 1 7 Sb-1 24 -2.09E-04 5.90E-04 1.69E-03 u AP SBN 429350002 6/28/20 1 7 Sb-1 25 l.lOE-04 2.49E-04 8.56E-04 u AP SBN 429350002 6/28/20 1 7 Se-75 -3.65E-04 2.1 4E-04 5.97E-04 u AP SBN 429350002 6/28/20 1 7 Th-228 6.68E-05 l.69E-04 6.1 2E-04 u AP SBN 429350002 6/28/20 17 Z n-65 2.44E-04 2.68E-04 9.96E-04 u AP SBN 429350002 6/28/20 1 7 Zr-95 -3.52E-04 4.56E-04 1.26E-03 u AP DOW 429350003 6/28/20 1 7 Ac-228 -1.82E-04 4.00E-04 1.4 1 E-03 u AP DOW 429350003 6/28/2017 Ag-1 08 m -7.57E-05 6.25E-05 l.66E-04 u AP DOW 429350003 6/28/20 1 7 Ag-I !Om I.37E-04 l.56E-04 5.SSE-04 u AP DOW 429350003 6/28/20 1 7 Ba-1 40 -3.94E-02 3.28E-02 7.8 1 E-02 u AP DOW 429350003 6/28/20 1 7 Be-7 1.59E-0 1 1.22E-02 6.02E-03 AP DOW 429350003 6/28/20 1 7 Ce-1 4 1 1.26E-04 6.64E-04 2.13E-03 u AP DOW 429350003 6/28/2017 Ce-1 44 1.03E-04 5.06E-04 1.63E-03 u AP DOW 429350003 6/28/20 1 7 Co-57 -9.79E-06 7.36E-05 2.33E-0 4 u AP DOW 429350003 6/28/20 1 7 Co-58 -5.88E-04 2.70E-04 3.98E-0 4 u AP DOW 429350003 6/28/20 1 7 Co-60 -7.54E-05 l.04E-04 2.84E-0 4 u AP DOW 429350003 6/28/20 1 7 Cr-5 1 6.25E-04 5.S I E-03 1.88E-02 u AP DOW 429350003 6/28/20 1 7 Cs-1 34 -1.0 4E-04 l.07E-04 2.77E-0 4 u AP DOW 429350003 6/28/20 1 7 Cs-1 37 2.2 1 E-05 9.67E-05 3.22E-04 u AP DOW 429350003 6/28/20 1 7 Fe-59 4.02E-04 7.47E-04 2.67E-0 3 u AP DOW 429350003 6/28/20 1 7 1-1 3 1 I .49E-O l l.SOE-0 1 O.OOE+OO UI AP DOW 429350003 6/28/2017 K-40 6.69E-03 2.0SE-03 3.34E-03 Ul AP DOW 429350003 6/28/20 1 7 La-1 40 -1.1 2£-02 1.34E-02 3.44E-0 2 u D-13 Donald C. Cook Nuc l ear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE E N D CONC ST D.D EV. MDC FLAGS TYPE STATION LS N D ATE NUCLIDE (pCi/m3) (pCi/m3)

(p Ci/m3) AP DOW 429350003 6/28/20 1 7 Mn-54 1.30£-04 1.1 9£-04 4.25£-04 u AP DOW 429350003 6/28/20 1 7 N b-95 8.62E-05 2.67£-04 8.86£-04 u AP DOW 429350003 6/28/20 1 7 R u-1 03 -3.36E-05 4.02E-04 1.32E-03 u AP DOW 429350003 6/28/20 17 R u-1 06 7.09E-04 l.1 9E-03 3.7IE-03 u AP DOW 429350003 6/28/20 1 7 S b-1 24 -8.62E-04 7.95£-04 1.90£-03 u AP DOW 429350003 6/28/20 1 7 Sb-1 25 -2.43E-05 2.26E-04 7.4 1£-04 u AP DOW 429350003 6/28/20 1 7 Se-75 2.08£-04 J.83E-04 6.45£-04 u AP DOW 429350003 6/28/20 1 7 T h-228 -l.80 E-04 1.65£-04 5.1 7£-04 u AP DOW 429350003 6/28/20 1 7 Z n-65 -4.08E-04 3.27E-04 8.58E-04 u AP DOW 429350003 6/28/20 1 7 Zr-95 3.80£-04 4.58£-04 l.59E-03 u AP COL 429350004 6/28/2017 Ac-228 -8.25E-05 4.1 4E-04 1.47£-03 u AP COL 429350004 6/28/20 1 7 Ag-1 08 m -4.92E-05 6.20E-05 1.82£-04 u AP COL 429350004 6/28/20 1 7 Ag-lI Om 1.37£-04 l.6 1 E-04 5.84E-04 u AP COL 429350004 6/28/20 1 7 Ba-1 40 -4.75E-0 2 2.9 7£-0 2 6.8 1£-02 u AP COL 429350004 6/28/20 1 7 Be-7 1.68£-0 1 I. 13£-02 4.50£-03 AP COL 429350004 6/28/2017 Ce-1 41 -1.13E-03 7.02£-04 1.83£-03 u AP COL 429350004 6/28/20 1 7 Ce-1 44 5.95£-04 5.47£-04 1.8 1£-03 u AP COL 429350004 6/28/2017 Co-57 1.06£-04 7.5 1 E-05 2.48£-04 u AP CO L 429350004 6/28/20 1 7 Co-58 -7.16 E-06 2.00E-04 6.76E-04 u AP CO L 429350004 6/28/20 1 7 Co-60 6.66E-05 l.36E-04 4.7 1 E-04 u AP COL 429350004 6/28/20 1 7 Cr-5 1 -2.56E-04 5.59E-03 l.88E-02 u AP COL 429350004 6/28/20 1 7 Cs-1 3 4 6.81E-05 l.1 2E-04 3.67E-04 u AP CO L 429350004 6/28/20 1 7 Cs-1 37 -9.37E-05 l.1 6 E-04 3.34E-04 u AP C OL 429350004 6/28/20 1 7 Fe-59 -8.28E-04 6.68E-04 l.62E-03 u AP COL 429350004 6/28/20 1 7 1-1 3 1 -9.99E-02 1.33E-0 1 O.O OE+OO u AP COL 429350004 6/28/20 1 7 K-40 2.43E-04 l.96E-03 2.3 1 E-03 u AP COL 429350004 6/28/20 1 7 La-1 40 -7.98E-03 I .69E-02 4.95E-02 u AP C OL 429350004 6/28/20 1 7 Mn-54 -7.69E-05 1.00E-04 2.98E-04 u AP CO L 429350004 6/2 8/20 1 7 Nb-95 3.1 8E-04 4.4 1 E-0 4 7.55E-04 u AP CO L 429350004 6/28/20 17 R u-1 03 4.39E-04 3.6 1 E-04 l.27E-03 u AP CO L 429350004 6/28/20 17 R u-1 06 5.53 E-04 9.33E-04 3. I 8E-03 u AP CO L 429350004 6/28/20 1 7 S b-1 24 l.09E-03 7.46E-0 4 2.90E-03 u AP C OL 429350004 6/28/20 17 S b-1 25 -5.1 3E-04 2.70E-04 6.34E-04 u AP C OL 429350004 6/28/20 1 7 Se-75 6.29E-05 l.63E-04 5.66E-04 u AP C OL 429350004 6/28/20 1 7 T h-228 5.47E-05 2.38E-04 5.75E-04 u AP C OL 429350004 6/28/20 1 7 Z n-65 -9.64E-05 3.84E-0 4 1. l 3E-03 u AP C OL 429350004 6/28/20 1 7 Z r-95 -2.23E-04 3.48E-04 9.67E-04 u AP ONS-1 429350005 6/28/20 1 7 Ac-228 -8.2 1 E-04 7.26 E-04 2.1 5E-03 u AP ONS-1 429350005 6/28/20 1 7 Ag-1 08m -9.33E-06 9.04E-05 3.1 9E-04 u AP ONS-1 429350005 6/28/20 1 7 Ag-llOm 2.1 I E-04 l.89E-04 7.36E-04 u AP ONS-1 429350005 6/28/20 1 7 Ba-140 6.57 E-03 4.56E-02 l.40E-OI u AP ONS-1 429350005 6/28/20 1 7 Be-7 l.74 E-O l l.50E-02 l.02E-02 AP ONS-1 429350005 6/28/20 1 7 Ce-1 41 -2.50 E-05 6.7 1 E-04 2.2 1 E-03 u AP O N S-1 429350005 6/28/20 1 7 Ce-1 44 -8.I OE-04 5.62E-04 l.52E-03 u AP ONS-1 429350005 6/28/20 1 7 Co-57 I .33E-05 7.6 1 E-05 2.57E-04 u AP ONS-1 429350005 6/28/20 1 7 C o-58 I .03 E-04 l .83E-04 6.77E-04 u AP ONS-1 429350005 6/28/20 1 7 Co-60 -6.93E-05 l.27E-04 3.46E-04 u AP ONS-1 429350005 6/28/20 1 7 C r-5 1 1.5 7£-0 2 6.37£-03 2.29E-02 u AP ONS-1 429350005 6/28/20 1 7 Cs-134 l.56E-04 1.27£-04 4.98E-04 u AP ONS-1 429350005 6/28/20 1 7 Cs-1 37 -l.54E-04 l.38E-04 3.50E-04 u D-14 Don a l d C. Cook Nuclear Pl ant Annual Radiological Environmental Operating Report 2017 SAMPLE E ND CONC STD.DE V. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3) AP ONS-1 429350005 6/28/20 17 Fe-59 3.7 1 E-04 8.35E-04 3.07E-03 u AP ONS-1 429350005 6/28/20 17 1-131 -I. I O E-02 I.44E-O I O.OO E+O O u AP ONS-1 429350005 6/28/20 1 7 K-40 7.17£-04 1.90£-0 3 8.07£-03 u AP ONS-1 429350005 6/28/20 17 La-1 40 -2.9 4£-0 2 1.83£-02 O.OOE+OO u AP ONS-1 429350005 6/28/20 17 Mn-54 l.02E-04 1.1 3£-04 4.34E-04 u AP ONS-1 429350005 6/28/20 17 Nb-95 I.05 E-04 2.84E-04 9.82E-04 u AP ONS-1 429350005 6/28/20 1 7 Ru-10 3 -3.9 1 E-04 4.39 E-04 1.25£-03 u AP ONS-1 429350005 6/28/20 1 7 Ru-10 6 -6.65E-04 I. I I E-03 3.23E-0 3 u AP ONS-1 429350005 6/28/20 1 7 Sb-1 24 9.96E-04 I.06E-03 4.1 3E-0 3 u AP ONS-1 429350005 6/28/20 17 Sb-1 25 -1.28E-04 3.21E-04 1.04£-03 u AP ONS-1 429350005 6/28/20 17 Se-75 -6.43E-06 1.94£-0 4 6.15£-04 u AP ONS-1 429350005 6/28/20 17 T h-228 -8.0 6E-05 2.16£-04 7.15£-04 u AP ONS-1 429350005 6/28/20 17 Zn-65 -1.8 1 E-04 4. 1 9E-0 4 1.39£-03 u AP ONS-1 429 350005 6/28/20 1 7 Z r-95 -3.08E-04 6.33E-04 1.88E-0 3 u AP ONS-2 429350006 6/28/20 1 7 Ac-228 4.9 1 E-04 5.33E-0 4 I .43E-03 u AP ONS-2 429350006 6/28/20 17 Ag-1 08m 4.1 9E-06 5.65E-05 l.90E-0 4 u AP ONS-2 429350006 6/28/20 17 Ag-I !Om I .43E-04 l.5 I E-04 5.20£-04 u AP ONS-2 429350006 6/28/20 17 Ba-1 40 8.1 9£-0 2 3.49 E-0 2 1.15 E-0 1 u AP ONS-2 429350006 6/28/20 17 Be-7 l.70 E-01 1.1 4£-0 2 5.61£-0 3 AP ONS-2 429350006 6/28/20 17 Ce-1 41 -7.4 6E-0 5 5.95£-04 I.89E-03 u AP ONS-2 429350006 6/28/20 1 7 Ce-1 44 9.26E-04 5.16£-0 4 l.64E-0 3 u AP ONS-2 429350006 6/28/20 17 Co-57 -6.40E-05 6.23E-05 1.84£-04 u AP ONS-2 429350006 6/28/20 1 7 Co-58 8.8 1 E-05 l.64E-0 4 5.JO E-04 u AP ONS-2 429350006 6/28/20 I 7 Co-60 2.24E-05 9.49£-05 3.27E-04 u AP ONS-2 429350006 6/28/20 1 7 C r-5 1 9.4 1 E-0 3 5.56E-03 1.89E-02 u AP ONS-2 429350006 6/28/20 17 Cs-134 -3.00E-05 9.49 E-05 2.94E-04 u AP ONS-2 429350006 6/28/20 1 7 Cs-1 37 -3.6 1 E-05 9.05 E-05 2.84E-04 u AP ONS-2 429350006 6/28/20 1 7 Fe-59 -4.I O E-04 5.6 1 E-0 4 l.7 0 E-0 3 u AP ONS-2 429350006 6/28/20 1 7 1-13 1 -5.96E-0 2 I.4 0E-01 O.OOE+OO u AP ONS-2 429350006 6/28/2017 K-40 2.9 8 E-0 3 1.5 2E-03 1.34E-03 Ul AP ONS-2 429350006 6/28/20 1 7 La-1 40 -6.82E-03 I. l OE-02 3.2 1 E-02 u AP ONS-2 429350006 6/28/20 1 7 Mn-54 8.56E-05 8.IO E-05 2.88 E-04 u AP ONS-2 429350006 6/28/20 17 Nb-95 -2.55E-04 2.1 8E-04 5.93E-04 u AP ONS-2 429350006 6/28/2017 R u-1 03 -J.67E-04 3.45E-04 1.I OE-0 3 u AP ONS-2 429350006 6/28/20 1 7 R u-1 06 4.68E-04 8.38E-04 2.85E-0 3 u AP ONS-2 429350006 6/28/20 17 Sb-1 24 -l.36 E-0 5 5.8 1 E-0 4 1.90E-0 3 u AP ONS-2 429350006 6/28/20 1 7 Sb-1 25 5.73E-05 2.1 7E-04 7.37E-04 u AP ONS-2 429350006 6/28/20 1 7 Se-7 5 3.09E-04 l.73 E-04 5.8 1 E-0 4 u AP ONS-2 429350006 6/28/20 1 7 Th-228 -I.4 4E-04 l.67E-04 5.18 E-04 u AP ONS-2 429350006 6/28/20 1 7 Z n-65 5.96E-05 2.63E-04 8.1 2E-0 4 u AP ONS-2 429350006 6/28/20 1 7 Z r-95 3.80E-05 3.25E-04 l.0 7E-03 u AP ONS-3 429350007 6/28/20 1 7 Ac-228 -2.90E-0 4 5.37E-04 l.90E-0 3 u AP ONS-3 429350007 6/28/20 1 7 Ag-108 111 -5.43E-05 7.8 1 E-05 2.2 7E-04 u AP ONS-3 429350007 6/28/20 17 Ag-1 1 0111 7.1 8E-05 2.13E-04 7.3 7£-04 u AP ONS-3 429350007 6/28/20 1 7 Ba-1 40 6.0 8E-0 2 4.54E-02 l.5 9E-O I u AP ONS-3 429350007 6/28/20 1 7 Be-7 I.8 6E-O I l.34 E-02 7.93E-0 3 AP ONS-3 429350007 6/28/20 1 7 Ce-1 4 1 3.33 E-04 7.57 E-04 2.45E-0 3 u AP ONS-3 429350007 6/28/20 17 Ce-1 44 3.6 I E-04 7.63E-04 2.46E-03 u AP ONS-3 429350007 6/28/20 1 7 Co-57 -5.20£-05 8.04 E-05 2.39E-04 u AP ONS-3 42935000 7 6/28/2017 Co-58 8.24E-05 2.33E-04 8.1 7E-04 u D-15 Donald C. Cook Nuclea r Pl a nt Annual Radiological Environmental Operating Repo rt 2017 SAMPLE E ND CONC ST D.D E V. MD C FLAGS TYPE ST ATION LS N DAT E N UC LID E (p Ci/m 3) (pC i/m 3) (pC i/m 3) AP ONS-3 429350007 6/28/20 1 7 Co-60 -7.03E-05 I.30E-04 3.58E-04 u AP ONS-3 429350007 6/28/20 1 7 C r-51 -5.67E-04 7.5 1 E-03 2.49E-02 u AP ONS-3 429350007 6/28/20 1 7 Cs-1 34 I.06E-04 I.25E-04 4.60E-04 u AP ONS-3 429350007 6/28/20 1 7 Cs-1 37 -5.94E-06 9.39E-05 3.1 6E-04 u AP ONS-3 429350007 6/28/20 17 Fe-59 -1.22E-03 8.89E-04 1.92E-03 u AP ONS-3 429350007 6/28/20 1 7 1-1 31 6.57E-03 l.38E-O I O.OOE+OO U I AP ONS-3 429350007 6/28/20 1 7 K-40 -1.09E-03 I .80E-03 5.9 1 E-03 u AP ONS-3 429350007 6/28/20 1 7 La-1 40 7.1 6E-03 I .1 5E-02 4.43E-02 u AP ONS-3 429350007 6/28/20 1 7 Mn-54 8.52E-05 J.43E-04 5. I OE-04 u AP ONS-3 429350007 6/28/20 1 7 Nb-95 -I.42E-05 3.1 2E-04 I.04E-03 u AP ONS-3 429350007 6/28/20 1 7 Ru-1 03 I .49E-04 4.77E-04 1.59E-03 u AP ONS-3 429350007 6/28/20 17 R u-1 06 -6.1 5E-04 1.11 E-03 3.2 1 E-03 u AP ONS-3 429350007 6/28/2 01 7 S b-1 24 4.24E-04 I .06E-03 3.73E-03 u AP ONS-3 429350007 6/28/20 1 7 Sb-1 25 2.72E-04 2.88E-04 I.O J E-03 u AP ONS-3 429350007 6/28/20 1 7 Se-75 -3.09E-04 2.4 1 E-04 6.0 I E-04 u AP ONS-3 429350007 6/28/20 1 7 Th-228 8.22E-04 3.53E-04 8.23E-04 u AP ONS-3 429350007 6/28/20 1 7 Zn-65 -5.78E-04 4.02E-04 9.04E-04 u AP ONS-3 429350007 6/28/20 1 7 Z r-95 -5.I OE-05 4.42E-04 I.39E-03 u AP ONS-4 429350008 6/28/20 1 7 Ac-228 I. I OE-03 7.03E-04 2.20E-03 u AP ONS-4 429350008 6/28/20 1 7 Ag-1 08m 9.5 1 E-05 9.9 I E-05 3.37E-04 u AP ONS-4 429350008 6/28/20 1 7 Ag-I I Om 3.08E-04 2.50E-04 8.93E-04 u AP ONS-4 429350008 6/28/20 1 7 Ba-1 40 -6.45E-02 4.39E-02 I .08E-OI u AP ONS-4 429350008 6/28/20 1 7 Be-7 I .79E-OI l.33E-02 7.69E-03 AJ' ONS-4 429350008 6/28/20 1 7 Ce-1 41 J.36E-0 5 7.43E-0 4 2.54E-03 u AP ONS-4 429350008 6/2 8/2 01 7 Ce-1 44 -5.1 5E-0 4 6.0 1 E-0 4 1.92E-03 u AP ONS-4 429350008 6/28/20 1 7 Co-57 -1.08E-0 4 7.52E-05 2.22E-04 u AP ONS-4 429350008 6/28/20 1 7 Co-58 1.6 1 E-04 2.90E-04 l.02E-03 u AP ONS-4 429350008 6/28/20 1 7 Co-60 l.28E-04 I .24E-04 4.66E-04 u AP ONS-4 429350008 6/28/20 1 7 Cr-5 1 2.79 E-06 6.85E-03 2.26E-02 u AP ONS-4 429350008 6/28/20 1 7 Cs-1 34 I.9 1 E-05 I .70E-04 5.76E-04 u AP ONS-4 429350008 6/28/20 1 7 Cs-137 9.36E-0 5 l.1 6E-04 4.1 5E-04 u AP ONS-4 429350008 6/28/20 1 7 Fe-59 -7.36E-04 8.22E-04 2.25E-03 u AP ONS-4 429350008 6/28/20 1 7 1-1 31 -7.93E-02 1.64E-O I O.OOE+OO u AP ONS-4 429350008 6/28/20 1 7 K-40 -I.39E-03 I .38E-03 4.48E-03 u AP ONS-4 429350008 6/28/20 1 7 La-1 40 8.53E-04 8.82E-03 2.92E-02 u AP ONS-4 429350008 6/28/20 17 M n-54 -2.42E-05 I .50E-04 4.92E-04 u AP ONS-4 429350008 6/28/2 01 7 N b-95 4.34E-04 3.00E-04 I .0 6E-03 u AP ONS-4 429350008 6/28/20 1 7 R u-1 03 7.5 1 E-04 4.77E-04 1.65E-03 u AP ONS-4 429350008 6/28/20 1 7 Ru-1 06 -I.35E-03 l.33E-03 3.30E-03 u AP ONS-4 429350008 6/28/20 1 7 Sb-1 24 -5.1 4E-04 5.65E-04 l.37E-03 u AP ON -4 429350008 6/28/20 1 7 Sb-1 25 l.6 1 E-04 3.05E-04 I.03E-03 u AP ONS-4 429350008 6/28/20 1 7 Se-75 -5.49E-05 2.2 1 E-04 7.24E-04 u AP ONS-4 429350008 6/28/20 17 T h-228 5.76E-04 2.93E-04 7.0 I E-04 u AP ONS-4 429350008 6/28/20 1 7 Z n-65 4.3 I E-06 2.63E-04 8.66E-04 u AP ONS-4 429350008 6/28/20 1 7 Z r-95 -5.04E-04 4.5 1 E-04 l.25E-03 u AP ONS-5 429350009 6/28/20 1 7 Ac-228 3.1 5E-04 5.49E-04 I.72E-03 u AP ONS-5 429350009 6/28/20 1 7 Ag-1 08m 2.1 2E-05 6.20E-05 2.1 7E-04 u AP ONS-5 429350009 6/28/20 1 7 Ag-I I Om -6.29E-05 1.79E-04 5.53E-04 u AP ONS-5 429350009 6/28/20 1 7 Ba-1 40 4.29E-03 3.32E-02 l.02E-O I u AP ONS-5 429350009 6/28/20 1 7 Be-7 1.77E-OI I .23E-02 6.62E-03 D-16 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END C O NC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3) AP ONS-5 429350009 6/28/20 17 Ce-141 1.32 E-03 7.96E-04 2.27£-03 u AP ONS-5 429350009 6/28/20 17 Ce-1 44 -9.48E-04 5.85E-04 1.53£-03 u AP ONS-5 429350009 6/28/20 1 7 Co-5 7 5.82E-05 6.6 1 E-05 2.21E-0 4 u AP ONS-5 429350009 6/28/20 1 7 Co-58 -4.68E-05 2.02E-04 6.39E-04 u AP ONS-5 429350009 6/28/20 1 7 Co-60 1.51 E-05 9.34E-05 3.27E-0 4 u AP ONS-5 429350009 6/28/20 1 7 Cr-5 1 l.33E-02 6.65E-03 2.28E-02 u AP ONS-5 429350009 6/28/20 17 Cs-1 34 -l.27E-04 1.19 E-04 3.07£-04 u AP ONS-5 429350009 6/28/20 1 7 Cs-137 4.54E-05 I.OOE-04 3.46£-04 u AP ONS-5 429350009 6/28/20 1 7 Fe-59 5.4 9E-05 5.87 E-04 1.92 E-03 u AP ONS-5 429350009 6/28/20 17 1-1 3 1 3.52 E-02 l.40E-0 1 O.OOE+OO UI AP ONS-5 429350009 6/28/20 1 7 K-40 l.25 E-03 I .88E-03 2.50E-03 u AP ONS-5 429350009 6/28/20 17 La-1 40 -4.22E-03 8.29E-03 2.34E-0 2 u AP ONS-5 429350009 6/28/20 1 7 Mn-54 I .43 E-04 l.47E-04 5.14E-04 u AP ONS-5 429350009 6/28/20 17 Nb-95 -3.28 E-0 4 2.92E-04 8. 1 8E-04 u AP ONS-5 429350009 6/28/20 1 7 Ru-1 03 -2.20E-04 3.30E-04 1.02E-03 u AP ONS-5 429350009 6/28/20 1 7 Ru-106 l.53E-03 l.03E-03 3.70£-03 u AP ONS-5 429350009 6/28/20 1 7 Sb-1 24 l.70E-05 3.65E-04 l.24E-03 u AP ONS-5 429350009 6/28/20 1 7 Sb-1 25 l.26 E-04 2.45E-04 8.57£-04 u AP ONS-5 429350009 6/28/20 1 7 Se-75 2.33E-04 2.00E-04 6.18E-04 u AP ONS-5 429350009 6/28/20 1 7 Th-228 5.48E-04 4.05E-04 6.26£-04 u AP ONS-5 429350009 6/28/20 1 7 Zn-65 3.96E-04 2.72E-04 1.02£-03 u AP ONS-5 429 3 50009 6/28/20 17 Z r-95 -l.41 E-04 3.65E-04 l. I 3E-03 u AP ONS-6 4293500 1 0 6/28/20 1 7 Ac-228 6.30E-05 5.85E-04 I .94E-03 u AP ONS-6 429350010 6/28/20 1 7 Ag-10 8 m -2.70E-05 8.88E-05 2.87E-04 u AP ONS-6 4 293500 1 0 6/28/20 17 Ag-I I Om -3.55 E-04 2.00 E-04 2.89E-04 u AP ONS-6 4293500 1 0 6/28/20 17 Ba-1 40 3.33E-03 3.22E-02 J.08 E-OI u AP ONS-6 429350010 6/28/20 1 7 Be-7 J.5 9E-OI l.3 1 E-02 7.43E-03 AP ONS-6 429 3500 1 0 6/28/20 1 7 Ce-1 4 1 -l.44 E-03 I .06E-03 2.91£-0 3 u AP ONS-6 4293500 1 0 6/28/20 17 Ce-1 44 3.25E-04 6.52E-04 2.1 5E-03 u AP ONS-6 429350010 6/28/20 1 7 Co-57 -9.60E-05 8.47E-05 2.38E-04 u AP ONS-6 4293500 1 0 6/28/20 17 Co-58 3.3 I E-05 2.87E-04 9.39E-04 u AP ONS-6 4293500 1 0 6/28/20 1 7 Co-60 6.29E-05 l.25E-04 4.57E-04 u AP ONS-6 429350010 6/28/20 17 Cr-5 1 3.60E-04 6.7 1 E-0 3 2.29E-02 u AP ONS-6 429350010 6/28/20 17 Cs-1 34 -2.3 I E-05 I .OOE-04 3.07£-04 u AP ONS-6 429350010 6/28/20 1 7 Cs-1 3 7 8.48E-06 I .02 E-04 3.37E-04 u AP ONS-6 4293500 1 0 6/28/20 1 7 Fe-59 6.85 E-04 7.49 E-04 2.88E-0 3 u AP ONS-6 4293500 1 0 6/28/20 1 7 1-1 3 1 3.89E-O I 2.1 2E-O I O.OOE+OO Ul AP ONS-6 4293500 10 6/28/20 1 7 K-40 -2.99 E-03 l.9 1 E-03 5.26E-0 3 u AP ONS-6 4293500 1 0 6/28/20 1 7 La-1 40 l.5 4E-02 l.58 E-02 6.22E-02 u AP ONS-6 429350010 6/28/20 1 7 Mn-54 J.22 E-04 1.45E-04 5.1 4E-04 u AP ONS-6 429350010 6/28/20 17 Nb-95 l.20E-04 4.07 E-04 1.22 E-03 u AP ONS-6 429350010 6/28/20 1 7 Ru-I 03 -2.74 E-04 4.43E-04 l.35 E-03 u AP ONS-6 4293500 1 0 6/28/20 17 Ru-106 6.1 6E-04 I .20 E-03 4.14E-03 u AP ONS-6 4293500 1 0 6/28/20 1 7 Sb-1 24 -l.70E-05 9.40 E-04 3.08E-03 u AP ONS-6 4293500 1 0 6/28/20 17 Sb-1 25 l.04 E-04 2.37 E-04 8.33E-04 u AP ONS-6 429350010 6/28/20 1 7 Se-75 -l.5 8E-04 2.24E-04 7.22 E-04 u AP ONS-6 429350010 6/28/20 17 Th-228 2.70E-0 4 2.78E-04 7.60E-04 u AP ONS-6 429350010 6/28/20 1 7 Z n-65 -5.56 E-05 3.27E-04 1.08£-0 3 u AP ONS-6 4293500 1 0 6/28/20 1 7 Z r-95 1.74E-04 4.01 E-04 1.39£-03 u AP NBF 42737000 1 7/5/20 1 7 B ETA 2.44E-02 1.5 I E-03 1.1 3E-0 3 D-17 Donald C. Cook Nuclear Plant Annu a l Radiological Environmen t al Operat in g Report 2 017 SAMPLE E ND CONC ST D.DEV. M D C FLAGS TYPE STA TI O N LSN D ATE NUCLIDE (pCi/m3) (pC i/m3) (pCi/m3) AP SBN 427370002 7/5/20 1 7 BETA 2.59E-02 l.53E-03 l.l l E-03 AP DOW 427370003 7/5/20 1 7 BETA 2.4 1 E-02 1.49E-03 l.1 2E-03 AP COL 427370004 7/5/20 1 7 BETA 2.24E-02 l.48E-03 I .20E-03 AP ONS-1 427370005 7/5/20 1 7 BETA 2.6 1 E-02 l.56E-03 l.1 5E-03 AP ONS-2 4273 7 0 006 7/5/2 0 1 7 BETA 2.1 4E-02 I .44E-03 1.1 8E-03 AP ONS-3 427370007 7/5/20 1 7 BETA 2.57E-02 I .52E-03 1.1 IE-03 AP ONS-4 427370008 7/5/20 1 7 BETA 2.40E-0 2 I .52E-03 l. I 7E-03 AP ONS-5 427370009 7/5/20 1 7 BETA 2. I OE-02 I .43E-03 l.1 8E-03 AP ONS-6 42 7 3700 10 7/5/20 1 7 BETA 2.53E-02 l .52E-03 1.1 2E-03 AP NBF 42789200 1 7/J 2/20 1 7 BETA 2.77E-02 l .62E-03 l.21E-03 AP SBN 427892002 7/J 2/20 1 7 BETA 2.62E-02 1.55E-03 l.1 8E-03 AP DOW 427892003 7/1 2/20 1 7 BETA 2.1 8E-02 I .44E-03 1.22E-03 AP COL 427892004 7/1 2/20 1 7 BETA 2.1 6E-02 l .46E-03 l.27E-03 AP ONS-1 427892005 7/12/20 1 7 BETA 2.65E-02 l.59E-03 l.22E-03 AP ONS-2 427892006 7/1 2/2017 BETA 2.47E-02 l.55E-03 1.25E-03 AP ONS-3 427892007 7/12/20 1 7 BETA 2.80E-02 l.59E-03 l.1 6E-03 AP ONS-4 427892008 7/12/20 1 7 BETA 2.39E-02 l.5 1 E-03 l.22E-03 AP ONS-5 427892009 7/12/2 01 7 BETA 2.52E-02 l.56E-03 l.23E-03 AP ONS-6 427892010 7/1 2/20 1 7 BETA 2.84E-02 l.6IE-03 1.1 8E-03 AP NBF 4285 1 000 1 7/19/20 1 7 BETA l.78E-02 1.33E-03 1.2 1 E-03 AP SBN 4285 1 0002 7/19/20 1 7 BETA I .76E-02 l.27E-03 1.1 3£-03 AP DOW 4285 1 0003 7/1 9/20 1 7 BETA 1.78£-02 l.3 I E-03 1.1 9£-03 AP C OL 4285 1 0004 7/19/20 1 7 BETA 1.73£-02 1.3 1 E-03 1.22E-03 AP ONS-1 4285 1 0005 7/1 9/20 1 7 BETA 1.69£-02 l .3 0 E-03 l.2 1 E-03 AP ONS-2 4285 1 0006 7/1 9/20 1 7 BETA 1.69£-02 1.29E-03 l.20E-03 AP ONS-3 4285 1 0007 7/19/20 1 7 BETA 1.7 1£-02 l.30E-03 l.2 1 E-03 AP ONS-4 4285 1 0008 7/19/20 1 7 BETA 1.41 E-02 1.1 4£-03 1.1 2£-03 AP ONS-5 4285 1 0009 7/19/20 1 7 BETA l.64E-02 l.27E-03 l.20E-03 AP ONS-6 4285 1 0 0 10 7/1 9/20 1 7 BETA 1.88£-02 l.33E-03 l.1 6E-03 AP NBF 42903600 1 7/26/20 1 7 BETA 2.06£-02 1.43£-03 l.23E-03 AP SBN 429036002 7/26/20 1 7 BETA 2.28E-0 2 1.4 5£-03 1.1 5£-03 AP DOW 429036003 7/26/20 1 7 BETA 1.94£-02 I .38E-03 l.20E-03 AP COL 429036004 7/26/20 1 7 BETA l.77E-02 l.32E-03 1.20£-03 AP ONS-1 429036005 7/26/20 1 7 BETA 1.80£-02 l.33E-03 l.2 1 E-03 AP ONS-2 429036006 7/26/20 1 7 BETA 1.53£-02 I .24E-03 l.22E-03 AP ONS-3 429036007 7/26/20 1 7 BETA 1.67£-02 1.29£-03 l.22E-03 AP ONS-4 429036008 7/26/20 1 7 BETA 1.85£-02 l.3 1 E-03 1.1 5£-03 AP ONS-5 429036009 7/26/20 1 7 BETA 1.76£-0 2 l .32E-03 1.2 l E-03 AP ONS-6 429036010 7/26/20 17 B ETA l.67E-0 2 1.26E-03 1.1 7£-03 AP NBF 42979600 1 8/2/20 1 7 BETA 2.42E-0 2 l .52E-03 1.1 6£-03 AP SBN 429796002 8/2/20 17 B E TA 2.12E-02 1.4 1 E-03 l.1 4E-03 AP DOW 4 29796003 8/2/20 1 7 BETA 2.53E-02 l.55E-03 l.1 6E-03 AP C OL 429796004 8/2/20 17 B ETA 2.26E-02 I .46E-03 l.1 5E-03 AP ONS-1 429796005 8/2/20 1 7 BETA 2.22E-02 1.45E-03 1.1 6E-03 AP ONS-2 429796006 8/2/20 1 7 B ETA 2.50E-02 I .54E-03 1.1 6E-03 AP ONS-3 429796007 8/2/20 1 7 BETA 2.44E-02 l .52E-03 l. I 6E-03 AP ONS-4 429796008 8/2/20 1 7 B E TA 2.27E-02 I .43E-03 l.09E-03 AP ONS-5 429796009 8/2/20 1 7 BETA l .9 2E-0 2 l .35E-03 I .1 5E-03 AP ONS-6 4297960 10 8/2/20 1 7 B E TA 2.26E-02 l.44E-03 l.1 2E-03 AP NBF 43037700 1 8/9/20 1 7 B E TA 2.38E-0 2 1.5 1 E-03 l.23E-03 D-1 8 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DAT E NUCLIDE (pCi/m3) (pCi/m3) (pC i/m 3) AP SBN 430377002 8/9/20 1 7 BETA 2.58E-02 l.57 E-03 I .24E-0 3 AP DOW 430377003 8/9/20 1 7 BETA 2.53E-0 2 l.53 E-03 l.20E-03 AP COL 430377004 8/9/20 1 7 BETA 2.43E-02 1.53E-0 3 l.24E-03 AP ONS-1 430377005 8/9/20 1 7 BETA 2.7 6E-02 l.60E-03 1.2 I E-03 AP ONS-2 430377006 8/9/20 1 7 BETA 2.88E-02 I .64E-03 1.20E-03 AP ONS-3 430377007 8/9/20 1 7 BETA 2.95E-02 I .65E-03 I. 1 9E-03 AP ONS-4 430377008 8/9/20 1 7 BETA 2.8 1 E-02 I .60E-03 I. 1 9E-03 AP ONS-5 430377009 8/9/20 1 7 BETA 2.26E-02 I .45E-03 1.20E-03 AP ONS-6 4 303770 1 0 8/9/20 1 7 BETA 2.83E-02 l.63E-03 1.22E-03 AP NBF 43102600 1 8/16/20 1 7 BETA 3.1 3E-02 l.73 E-03 l.23E-03 AP SBN 431026002 8/16/20 1 7 BETA 3.0SE-02 l.68E-03 l.20E-03 AP DOW 43 1 026003 8/1 6/20 1 7 BETA 3.47E-02 1.82E-0 3 l.24E-03 AP COL 431026004 8/16/20 1 7 BETA 2.56E-0 2 l.53E-03 l.18E-03 AP ONS-1 43 10 26005 8/16/20 1 7 BETA 3.09 E-0 2 l.67 E-03 l. I 7E-03 AP ONS-2 43 1 026006 8/16/20 17 BETA 2.85E-02 l.64E-03 l.22E-03 AP ONS-3 43 1 026007 8/1 6/20 1 7 BETA 3.I SE-02 1.70 E-03 1.1 8E-03 AP ONS-4 43 1 026008 8/16/20 1 7 BETA 3.0 7 E-02 1.69E-03 l.20E-03 AP ONS-5 43 1 026009 8/16/20 17 BETA 3.00E-02 1.67E-03 1.20E-03 AP ONS-6 4310260 1 0 8/16/20 1 7 BETA 2.8 1 E-02 I .69E-03 1.3 I E-0 3 AP NBF 43 1 52800 1 8/23/20 17 BETA 3.25E-02 l.74E-03 1.1 6E-0 3 AP SBN 43 1 528002 8/23/20 1 7 BETA 3.08E-02 l.73 E-03 1.21 E-03 AP DOW 43 1 528003 8/23/20 1 7 BETA 3. I O E-0 2 l.72 E-03 l.1 8E-03 AP COL 43 1 528004 8/23/20 1 7 BETA 3.06E-02 l.66E-03 1.1 2E-0 3 AP ONS-1 43 1 528005 8/23/20 1 7 BETA 3.08E-0 2 l.68E-03 1.13E-03 AP ONS-2 43 1 528006 8/23/20 1 7 BETA 2.60E-02 1.53 E-03 I. I I E-03 AP ONS-3 4315 28007 8/23/20 1 7 BETA 3.56E-02 l.82E-03 1. ISE-03 AP ONS-4 43 1 528008 8/23/20 1 7 BETA 3.29E-0 2 l.74E-0 3 I. 14 E-03 AP ONS-5 431528009 8/23/20 1 7 BETA 2.82 E-02 1.97E-03 l.70E-0 3 AP ONS-6 431528010 8/23/20 1 7 BETA 3.1 3E-02 l.73 E-03 I. 1 8E-0 3 AP NBF 43202100 1 8/30/20 17 BETA 2.63E-02 l.56E-03 1. l SE-03 AP SBN 43202 1 002 8/30/20 1 7 BETA 2.83 E-02 l.60 E-03 I. 12E-03 AP DOW 432021003 8/30/20 17 BETA 2.SO E-0 2 1.55 E-03 1.1 8E-0 3 AP COL 4320 2 1 004 8/30/20 1 7 BETA 2.5 7 E-02 1.5 IE-03 I. I I E-0 3 AP ONS-1 432021005 8/30/20 1 7 BETA 2.53E-02 l.56E-03 1. I 9E-0 3 AP ONS-2 432021006 8/30/20 1 7 BETA 2.64E-02 l .59E-03 1. I 8E-03 AP ONS-3 43 202 1 007 8/30/20 1 7 BETA 2.82 E-02 l.60E-03 1. l 3E-0 3 AP ONS-4 43202 1 008 8/30/20 1 7 BETA 2.55E-02 l.5 1 E-03 I. I I E-0 3 AP ONS-5 4320 2 1 009 8/30/20 1 7 BETA 2.29 E-02 l.48E-03 I. I 7E-03 AP ONS-6 43202 1 0 10 8/30/20 1 7 BETA 2.67E-02 1.5 8E-03 l.1 6E-03 A P NBF 43247000 1 9/6/2017 BETA 2.8 7E-02 l.65 E-03 I. I 3E-03 AP SBN 432470002 9/6/20 17 BETA 2.56E-0 2 l.52E-03 l.08E-0 3 AP DOW 43247000 3 9/6/20 1 7 BETA 2.26E-0 2 l.4 7E-03 I. 1 4E-0 3 AP COL 432470004 9/6/20 1 7 BETA 2.13E-02 l.37 E-03 l.OSE-03 AP ONS-1 432470005 9/6/20 1 7 BETA 2.58E-0 2 1.51 E-03 1.06E-03 AP ONS-2 432470006 9/6/2017 BETA 2.60E-02 1.56E-03 I. I I E-03 AP ONS-3 432470007 9/6/20 17 BETA 2.85E-02 l.60E-03 I .07E-03 AP ONS-4 432470008 9/6/20 1 7 B ETA 2.53E-02 I .SOE-03 1.06E-03 AP ONS-5 432470009 9/6/20 17 BETA 2.54E-0 2 l .56E-03 l.13E-03 A P ONS-6 432470010 9/6/20 1 7 BETA 2.34E-02 1.SOE-03 l.15 E-03 AP NBF 432957001 9/1 3/20 1 7 BETA 1.65E-02 l.24E-03 1.1 4E-0 3 D-1 9 Donald C. Cook Nuclear Pl a nt Annual Radiological Environmental Operatin g Report 2 017 S AMP LE E ND CONC ST D.D E V. M D C FLAGS TYPE STA TI ON LSN D ATE NUCL ID E (pCi/m3) (pCi/m3) (p Ci/m3) AP SBN 432957002 9/13/20 1 7 B ETA l.65E-02 l.24E-0 3 I. I 3E-03 AP DOW 432957003 9/13/20 1 7 BETA l.56E-02 l.23E-03 1.1 8£-03 AP COL 432957004 9/1 3/20 1 7 BETA 1.62£-02 1.2 1 E-03 1.1 OE-03 AP ONS-1 432957005 9/13/20 1 7 BETA l.68E-02 I .30E-03 I.22E-03 AP ONS-2 432957006 9/13/20 1 7 BETA 1.79£-02 1.30£-03 1.1 5£-03 AP ONS-3 432957007 9/1 3/20 1 7 BETA 2.03£-02 1.36£-03 1.1 2£-03 AP ONS-4 432957008 9/1 3/20 1 7 BETA l.98E-02 I .3 5 E-0 3 1. I 2E-03 AP ONS-5 432957009 9/13/20 1 7 BETA 1.80£-02 1.32£-03 1.1 8£-03 AP ONS-6 4329570 10 9/1 3/20 1 7 BETA 1.40£-02 1.1 8£-03 1.20£-03 AP NBF 433420001 9/20/20 1 7 BETA 3.58£-02 1.84£-03 l.25E-03 AP SBN 433420002 9/20/20 1 7 BETA 3.42£-02 1.78£-03 1.2 1 E-03 AP DOW 433420003 9/20/20 1 7 BETA 3.67E-02 l.89E-03 l.28E-03 AP COL 433420004 9/2 0/20 1 7 B ETA 3.67E-02 l.82E-03 l.1 9E-03 AP ONS-1 433420005 9/2 0/20 1 7 BETA 3.3 1 E-02 1.7 8£-03 1.25£-03 AP ONS-2 433420006 9/20/20 1 7 BETA 3.4 1 E-02 l.80E-03 1.25£-03 AP ONS-3 433420007 9/20/20 1 7 BETA 3.56£-02 1.86£-03 1.28£-03 AP ONS-4 433420008 9/20/20 1 7 BETA 3.62 E-02 1.8 1 E-03 I. I 9E-03 AP ONS-5 433420009 9/20/20 1 7 B ETA 3.22E-02 I .72E-03 l.2 I E-03 AP ONS-6 4334200 1 0 9/20/20 1 7 BETA 3.93E-02 l.95E-03 1.28£-03 AP NBF 4339 1 800 1 9/2 7/20 1 7 B ETA 4.93E-02 2.2 0 E-03 1.29E-03 AP SBN 4339 1 8002 9/27/20 1 7 BETA 4.77E-02 2.I OE-03 1.2 1 E-03 AP DOW 4339 1 8003 9/2 7/20 1 7 BETA 4.77E-02 2.15£-03 l.28E-03 AP COL 433918004 9/27/20 1 7 BETA 4.70E-02 2.06E-03 1.1 8E-03 AP ONS-1 4339 1 8005 9/2 7/20 1 7 B ETA 4.97£-02 2.20£-03 l.27E-03 AP ONS-2 4339 1 8006 9/27/20 1 7 B ETA 5.39E-02 2.2 9£-03 1.27E-03 AP ONS-3 4339 1 8007 9/2 7/20 1 7 BETA 5.1 7£-02 2.22£-03 1.25E-03 AP ONS-4 4339 1 8008 9/2 7/20 1 7 B ETA 4.86£-02 2.09E-03 l.1 8E-03 AP ONS-5 4339 1 8009 9/27/20 1 7 BETA 5.49E-02 2.40E-03 1.38E-03 AP ONS-6 4 339 1 80 1 0 9/2 7/20 1 7 BETA 5.15 E-02 2.23E-03 l.2 7 E-03 AP NBF 43655800 1 9/27/20 1 7 Ac-228 -9.55E-05 4.62£-04 I .53E-03 u AP NBF 4 36558001 9/27/20 1 7 Ag-1 08m l.76E-04 8.63E-05 3.0 5E-04 u AP NBF 43655800 1 9/2 7/20 1 7 Ag-I I Om -l.37E-04 l.7 0E-04 4.49E-04 u AP NBF 43655800 1 9/27/20 1 7 Ba-1 40 3.04£-02 4.38E-02 l.57E-O I u AP NBF 436558001 9/2 7/20 1 7 Be-7 I .65E-Ol l.22E-02 6. IOE-03 AP NBF 4 3655800 1 9/27/20 1 7 Ce-1 4 1 4.20E-04 6.34E-04 2.08E-03 u AP NBF 436558001 9/27/20 1 7 Ce-1 44 I .60E-04 5.6 1 E-04 l.80E-03 u AP NBF 43655800 1 9/27/20 1 7 Co-57 -3.1 4E-0 5 6.5 4E-05 1.96E-04 u AP NBF 43655800 1 9/2 7/20 1 7 Co-58 -2.72E-0 4 2.67E-04 7.03E-04 u AP NBF 43655800 1 9/27/20 1 7 Co-60 l.50E-04 l.1 9E-04 4.70E-04 u AP NBF 43655800 1 9/2 7/20 1 7 C r-5 1 6.83E-03 7.08E-03 2.44£-02 u AP NBF 43655800 1 9/27/20 1 7 Cs-1 34 4.87E-05 I .25E-04 4.27E-04 u AP NBF 43655800 1 9/2 7/20 1 7 Cs-1 37 -9.5 3E-0 5 1.11 E-04 3.1 9E-04 u AP NBF 43655800 1 9/27/20 1 7 Fe-59 l.48E-04 7.25E-04 2.5 1 E-03 u AP NBF 43655800 1 9/2 7/20 1 7 1-1 3 1 -l.3 4E-02 2.42E-OI O.OOE+OO u AP NBF 43655800 1 9/27/20 1 7 K-40 2.48E-03 2.1 4E-03 8.24E-03 u AP NBF 43655800 1 9/2 7/20 1 7 La-1 40 2.27£-02 2.00E-02 7.82E-02 u AP NBF 43655800 1 9/2 7/20 1 7 M n-54 7.2 1 E-0 6 1.09E-04 3.56£-04 u AP NBF 436558001 9/2 7/20 17 N b-95 8.73E-05 2.0 0 E-04 7.02E-04 u AP NBF 43655800 1 9/2 7/20 17 R u-1 03 -3. l lE-04 2.9 0 E-04 7.75E-04 u AP NBF 436558001 9/2 7/20 17 R u-1 06 -l.22E-03 l .38E-03 4. l OE-03 u D-2 0 Don a ld C. Cook Nu c lear Pl a n t Annu al Radiologic a l Enviro n mental Operating R e port 2017 SAMPLE END C O NC ST D.DEV. MDC FLAGS TYPE STATIO N LSN DATE NUCLI D E (pCi/m 3) (pCi/m3) (pCi/m 3) AP NBF 43655800 1 9/27/20 1 7 Sb-1 24 I .O SE-03 6.70E-04 2.89E-03 u AP NBF 43655800 1 9/27/20 1 7 Sb-1 25 7.50E-05 2.59E-04 8.54E-04 u AP NBF 43655800 1 9/27/20 1 7 Se-75 -l.27E-04 l.59E-04 4.81E-04 u AP NBF 43655800 1 9/27/20 1 7 T h-228 l.73E-04 2.1 9E-04 5.23E-04 u AP NBF 43655800 1 9/27/20 1 7 Z n-65 -4.9 1 E-04 2.88E-04 4.84E-0 4 u AP NBF 43655800 1 9/27/20 1 7 Zr-95 -2.1 9E-04 3.45E-04 9.6 1 E-0 4 u AP SBN 436558002 9/27/20 1 7 Ac-228 2.80E-04 5.43E-04 l.69E-03 u AP SBN 436558002 9/2 7/20 1 7 Ag-1 08m 8.5 0E-05 8.7 1 E-05 3.09E-0 4 u AP SBN 436558002 9/2 7/20 1 7 Ag-I I O rn -5.00E-05 l.80E-04 5.86E-04 u AP SBN 436558002 9/27/20 1 7 Ba-1 40 -7.53E-03 4.62E-02 1.49E-O I u AP SBN 436558002 9/27/20 1 7 Be-7 I .4 4E-O I I .22E-02 9.34E-03 AP SBN 436558002 9/27/20 1 7 Ce-1 4 1 -I .0 3E-03 8.09E-04 2.00E-03 u AP SBN 436558002 9/27/20 1 7 Ce-144 -9.42E-04 6.03E-04 l.59E-03 u AP SBN 436558002 9/27/20 1 7 Co-57 -5.4 2E-05 7.22E-05 2.1 9E-04 u AP SBN 436558002 9/27/20 1 7 Co-58 I.I O E-04 2.09£-04 7.23E-04 u AP SBN 436558002 9/27/20 1 7 Co-60 9.1 7E-06 7.3 5 E-05 2.52E-04 u AP SBN 436558002 9/27/20 1 7 Cr-5 1 9.49E-03 6.88E-03 2.46E-02 u AP SBN 436558002 9/27/20 1 7 Cs-134 -7. I OE-05 l .1 3E-04 3.1 3E-04 u AP SBN 436558002 9/27/20 1 7 Cs-13 7 -8.46E-05 l.26E-04 3.68E-04 u AP SBN 436558002 9/27/20 1 7 Fe-59 4.98E-04 7.87£-04 2.88E-0 3 u AP SBN 436558002 9/27/20 1 7 1-13 1 -2.66£-0 1 2.03E-0 1 O.OOE+OO u AP SBN 436558002 9/27/20 1 7 K-40 -1.5 6£-05 l.66E-03 6.06E-03 u AP SBN 436558002 9/27/20 1 7 La-1 40 2.67E-02 2.06E-02 8.I OE-0 2 u AP SBN 436558002 9/27/20 1 7 M n-54 I .42E-04 1.1 2E-04 4.1 6E-04 u AP SBN 436558002 9/27/20 1 7 Nb-95 3.4 9E-04 2.37£-04 8.90E-0 4 u AP SBN 436558002 9/27/20 1 7 Ru-1 03 -9.55E-05 3.1 3E-04 9.85£-04 u AP SBN 436558002 9/2 7/20 17 R u-1 06 5.2 1 E-05 9.25E-04 3.04E-0 3 u AP SBN 436558002 9/2 7/20 1 7 Sb-1 24 -3.35E-05 5.1 5E-04 1.62E-03 u AP SBN 436558002 9/27/20 1 7 Sb-1 25 4.25E-05 2.86E-04 9.69£-0 4 u AP SBN 436558002 9/27/20 1 7 Se-75 -2.60E-04 2.0 I E-04 4.45E-04 u AP SBN 436558002 9/27/20 17 T h-228 -7.84E-06 I .72E-04 5.60E-04 u AP SBN 436558002 9/27/20 1 7 Zn-65 I .84E-04 3.13E-04 l.1 3E-03 u AP SBN 436558002 9/27/20 1 7 Zr-95 -3.4 8E-05 3.93E-04 l.2 4E-03 u AP DOW 436558003 9/27/20 1 7 Ac-228 2.78E-04 5.45E-04 l.97E-0 3 u AP DOW 436558003 9/27/20 1 7 Ag-1 08 m -2.5 1 E-04 I .05E-04 2.0SE-04 u AP DOW 436558003 9/2 7/20 1 7 Ag-I I O rn -2.2 7 E-04 I .68E-04 4.05E-04 u AP DOW 436558003 9/27/20 1 7 Ba-1 40 -5.0 3E-02 4.69E-02 1.32E-0 1 u AP D OW 436558003 9/27/20 1 7 Be-7 1.67£-01 l.2 1 E-02 5.30E-0 3 AP DOW 436558003 9/27/20 1 7 Ce-1 4 1 -7.77E-04 7.39E-04 2.2 1 E-03 u AP DOW 436558003 9/27/20 1 7 Ce-1 44 -9.1 7£-04 4.78E-04 1.1 4E-0 3 u AP DOW 436558003 9/27/20 1 7 Co-57 -I .43E-04 6.61E-05 1.5 1 E-04 u AP DOW 436558003 9/27/20 1 7 Co-58 3.95E-04 2.34E-04 8.82E-04 u AP DOW 436558003 9/27/20 1 7 Co-60 2.50£-04 l.39E-04 5.4 1 E-04 u AP DOW 436558003 9/27/20 1 7 C r-5 1 -1.9 4 E-03 5.50E-03 l.80E-02 u AP D OW 436558003 9/27/20 1 7 Cs-134 6.39E-05 7.69E-0 5 2.77E-04 u AP DOW 436558003 9/27/20 1 7 Cs-137 l.99E-0 5 8.74E-05 2.88E-04 u AP DOW 436558003 9/27/20 1 7 Fe-59 7.88E-04 7.28E-04 2.76E-0 3 u AP DOW 436558003 9/27/20 1 7 1-13 1 8.54E-02 2.15 E-O I O.OOE+OO Ul AP DOW 436558003 9/27/20 17 K-40 7.62E-0 4 l.6 5 E-03 6.39E-03 u AP DOW 436558003 9/27/20 17 La-1 40 -2.30E-02 2.0 1 E-02 4.82E-02 u D-2 1 L__

Donald C. Cook Nucl e a r Plant Annual Radiological Environm e n ta l Op e rating Report 2017 SAMPLE END CONC STD.D EV. MDC FLAGS TYPE STATION LSN D ATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3) AP DOW 436558003 9/27/20 17 M n-54 I .78E-04 l.56E-04 5.62E-04 u AP DOW 436558003 9/27/20 1 7 Nb-95 2.39£-04 2.1 8E-04 8.1 6£-04 u AP DOW 436558003 9/27/20 17 R u-1 03 l .69E-04 3.56£-04 1.1 2£-03 u AP DOW 436558003 9/27/20 1 7 R u-106 1.55£-03 1.05£-03 3.75£-03 u AP DOW 436558003 9/27/20 1 7 Sb-1 24 5.IOE-04 6.13£-04 2.40E-03 u AP DOW 436558003 9/27/20 1 7 Sb-1 2 5 -5.40E-05 2.72£-04 8.85£-04 u AP DOW 436558003 9/27/20 1 7 Se-75 1.04£-03 4.26£-04 5.02E-04 U I AP DOW 436558003 9/27/20 1 7 Th-228 8.59£-05 1.54£-04 4.98£-04 u AP DOW 436558003 9/2 7/20 1 7 Z n-65 7.76£-05 3.1 3E-04 l.06E-03 u AP DOW 436558003 9/27/20 1 7 Zr-95 2.86E-04 3.63E-04 l.34E-03 u AP COL 436558004 9/2 7/20 1 7 Ac-228 -7.3 1 E-04 5.79£-04 l.7 IE-03 u AP C OL 436558004 9/27/20 1 7 Ag-1 08m -l.20E-04 7.82E-05 I .88E-04 u AP COL 436558004 9/2 7/20 1 7 Ag-I I Om -2.42£-05 I .74E-04 5.43E-04 u AP COL 436558004 9/27/20 1 7 Ba-1 40 -3.66E-02 4.7 1£-02 1.36£-01 u AP COL 436558004 9/27/2017 Be-7 l.46E-OI I .34E-02 1.0 I E-02 AP COL 436558004 9/27/20 1 7 Ce-1 41 6.77E-04 8.22E-04 2.89E-03 u AP COL 436558004 9/27/20 1 7 Ce-144 8.19£-04 6.26£-04 2.20E-03 u AP COL 436558004 9/2 7/20 1 7 Co-57 -l.5 I E-05 7.65E-05 2.60E-04 u AP C OL 436558004 9/27/20 1 7 Co-58 -1.46£-04 2.55£-04 7.35£-04 u AP COL 436558004 9/27/20 1 7 Co-60 I .1 8E-04 I .46E-04 5.44E-04 u AP COL 436558004 9/27/20 1 7 Cr-51 -2.1 4E-03 7.1 8E-03 2.34E-02 u AP COL 436558004 9/27/20 1 7 Cs-1 34 -6.08E-06 l.37E-04 4.40E-04 u AP COL 436558004 9/2 7/20 1 7 C s-1 37 l.73E-04 I .30E-04 4.4 1 E-04 u AP COL 436558004 9/2 7/20 1 7 Fe-59 -6.00E-05 9.42E-04 2.96E-03 u AP COL 436558004 9/27/20 1 7 1-1 3 1 8.95£-0 1 7.82E-01 O.OOE+OO U l AP COL 436558004 9/27/20 1 7 K-40 l.09E-03 l.85E-03 7.07E-03 u AP COL 436558004 9/2 7/20 1 7 La-1 40 2.95E-02 2.7 1 E-02 l.02E-O I u AP C OL 436558004 9/27/2017 Mn-54 9.65£-05 l.44E-04 5.00E-04 u AP COL 436558004 9/27/20 1 7 Nb-95 6.39E-04 3.97£-04 7.40E-04 u AP COL 436558004 9/27/20 1 7 Ru-103 -2.41E-04 4.33£-04 l.32E-03 u AP COL 436558004 9/27/20 17 R u-1 06 7.58E-04 1.23E-03 4.26E-03 u AP COL 436558004 9/27/20 1 7 Sb-124 l.80E-05 5.07£-04 1.7 1 E-03 u AP COL 436558004 9/2 7/20 1 7 Sb-1 25 3.34£-04 2.87E-04 1.02E-03 u AP COL 436558004 9/27/20 1 7 Se-75 5.05E-05 I .96E-04 6.36E-04 u AP COL 436558004 9/2 7/20 1 7 T h-228 -3.48E-04 1.85£-04 5.26E-04 u AP COL 436558004 9/27/20 1 7 Z n-65 1.23£-04 3.95£-04 l.3 I E-03 u AP COL 436558004 9/27/20 1 7 Z r-95 -1.89£-04 4.36E-04 1.29£-03 u AP ONS-1 436558005 9/2 7/20 1 7 Ac-228 -2.37E-04 5.1 2E-04 1.59£-03 u AP ONS-1 436558005 9/2 7/20 1 7 Ag-1 08m 2.94£-05 I .02E-04 3.49£-04 u AP ONS-1 436558005 9/27/20 1 7 Ag-ll Om 4.23£-05 2.43E-04 7.95£-04 u AP ONS-1 436558005 9/27/20 1 7 Ba-140 2.42E-02 6.1 9£-02 2.1 2E-01 u AP ONS-1 436558005 9/2 7/20 1 7 Be-7 l.49E-O I I .29E-02 9.61E-03 AP ONS-1 436558005 9/27/2017 Ce-141 4.05£-03 2.05£-03 2.29£-03 U I AP ONS-1 436558005 9/2 7/20 1 7 Ce-1 44 3.65E-04 7.75£-04 2.54£-03 u AP ONS-1 436558005 9/27/20 1 7 Co-57 -6.08E-06 9.53E-05 3.05E-04 u AP ONS-1 436558005 9/27/20 1 7 Co-58 -2.83E-04 2.62E-04 6.40£-04 u AP ONS-1 436558005 9/27/20 1 7 Co-60 -1.26E-04 1.3 1 E-04 3.29£-04 u AP ONS-1 436558005 9/27/20 1 7 Cr-5 1 5.34£-03 8.37£-03 2.94£-02 u AP ONS-1 436558005 9/27/20 1 7 Cs-134 2.78E-0 4 I .38E-04 5.30E-04 u AP ONS-1 436558005 9/27/20 1 7 Cs-1 3 7 l.23E-04 I .30E-04 4.6 1 E-04 u D-2 2 Don a ld C. Cook N uclear Pl a n t Annual Radiologi ca l Enviro n mental Operating Report 2017 SAMPLE EN D CONC STD.DEV. MDC FLAGS TYP E STATION LSN DAT E NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3) AP ONS-1 436558005 9/27/2 0 1 7 Fe-5 9 1.01 E-03 l.06E-03 3.97E-03 u AP ONS-1 436558005 9/27/2017 1-13 1 -3.12 E-02 2.85E-O I O.OOE+OO u AP ONS-1 4 36 558005 9/27/20 1 7 K-40 -2.06E-03 2.26 E-03 7.22E-03 u AP ONS-1 436558005 9/27/20 1 7 La-1 40 -2.90E-0 2 l.8 1 E-02 O.OOE+OO u AP ONS-1 436558005 9/27/201 7 Mn-54 l.27E-04 I .17 E-04 4.38E-04 u AP ONS-1 436558005 9/27/20 1 7 Nb-95 5.27E-04 2.74E-04 4.85E-04 U1 AP ONS-1 436558005 9/27/20 17 Ru-I 03 -l.46 E-04 5.1 4E-04 l.65E-0 3 u AP ONS-1 436558005 9/27/2017 Ru-10 6 l.83E-03 l.34E-03 4.82E-03 u AP ONS-1 436558005 9/27/2017 Sb-1 24 8.00E-04 5.96 E-04 2.64E-03 u AP ONS-1 43 6558005 9/27/2017 Sb-1 25 -2.19 E-04 3.SIE-04 I. IO E-0 3 u AP ONS-1 436558005 9/27/2017 Se-75 -7.52E-05 2.17 E-04 7.26E-04 u AP ONS-1 436558005 9/27/2017 Th-228 -5.4 2E-04 2.78 E-04 7.57E-0 4 u AP ONS-1 436558005 9/27/20 1 7 Z n-65 6.84 E-05 3.18 E-04 1.11 E-0 3 u AP ONS-1 436558005 9/27/20 1 7 Z r-95 -2.25E-04 4.64 E-04 l.36E-03 u AP ONS-2 436558006 9/27/20 17 Ac-228 -4.71E-04 5.06 E-04 l.64E-0 3 u AP ONS-2 436558006 9/27/20 17 Ag-10 8 m 4.14 E-05 8.60 E-05 2.95E-04 u AP ONS-2 436558006 9/27/20 17 Ag-llOm -2.26E-04 l.54 E-04 3.42E-04 u AP ONS-2 436558006 9/27/2 0 1 7 Ba-1 40 -4.6 1 E-02 3.92E-02 9.83E-02 u AP ONS-2 436558006 9/27/2017 Be-7 I .48 E-Ol l.23E-02 8.16E-03 AP ONS-2 436558006 9/27/20 1 7 Ce-1 41 -I .07 E-03 7.44E-04 2.06E-03 u AP ONS-2 436558006 9/27/20 1 7 Ce-1 44 -2.35 E-04 4.66 E-04 1.4 1 E-0 3 u AP ONS-2 436558006 9/27/20 17 Co-57 -6.67E-05 7.2 1 E-05 2. IO E-0 4 u AP ONS-2 436558006 9/27/20 1 7 Co-58 -2.0 I E-05 2.0SE-04 6.86E-04 u AP ONS-2 436558006 9/27/2017 Co-60 5.75E-05 8.54 E-05 3.24E-04 u AP ONS-2 436558006 9/27/20 1 7 C r-5 1 -9. I I E-03 6.64E-03 l.86E-02 u AP ONS-2 436558006 9/27/20 1 7 Cs-1 34 I .39 E-0 4 I .06E-04 4.0SE-0 4 u AP ONS-2 436558006 9/2 7/20 1 7 Cs-1 37 -2.59E-05 I .22E-04 3.8 1 E-04 u AP ONS-2 436558006 9/27/2017 Fe-59 I .04E-03 9.SOE-04 3.S I E-03 u AP ONS-2 436558006 9/27/20 1 7 1-1 3 1 5.77E-02 2.08 E-Ol O.OOE+OO U1 AP ONS-2 436558006 9/27/20 1 7 K-40 -5.77E-04 l .89 E-03 7.00E-03 u AP ONS-2 4 365580 06 9/27/20 17 La-14 0 -3.56E-02 2.26E-02 3.68E-0 2 u AP ONS-2 436558006 9/27/20 1 7 Mn-54 -6.53E-05 I .07 E-04 3.27E-04 u AP ONS-2 436558006 9/27/20 1 7 N b-95 3.76E-04 2.61E-04 9.SIE-04 u AP ONS-2 436558006 9/27/20 1 7 Ru-I 03 7.14E-06 3.73E-04 l.23E-0 3 u AP ONS-2 436558006 9/27/20 17 Ru-10 6 -4.4 1 E-05 l.04E-03 3.33£-03 u AP ONS-2 436558006 9/27/2017 Sb-1 24 6.27E-04 6.87E-04 2.65E-03 u AP ONS-2 436558006 9/27/20 1 7 Sb-1 25 6.87E-0 4 5.16E-04 9.68E-04 u AP ONS-2 436558006 9/27/20 1 7 Se-75 7.91E-05 I .72E-04 6.0 l E-04 u AP ONS-2 436558006 9/27/20 17 Th-228 8.88E-05 2.52E-04 6.29E-04 u AP ONS-2 436558006 9/27/2017 Z n-65 2.72E-04 2.88E-04 1.07E-03 u AP ONS-2 436558006 9/27/2017 Zr-95 l.62 E-04 4.1 6E-0 4 I .40E-03 u AP ONS-3 436558007 9/27/2017 Ac-228 -1.54E-04 4.91 E-04 l.7 1 E-0 3 u AP ONS-3 436558007 9/27/20 17 Ag-10 8m I .89E-04 I.OS E-04 3.22E-04 u AP ONS-3 436558007 9/27/20 1 7 Ag-llOm -4.25E-04 2.1 9E-04 3.76E-04 u AP ONS-3 436558007 9/27/20 1 7 Ba-140 I .1 2E-02 5.18 E-02 l.7 1 E-O I u AP ONS-3 436558007 9/27/20 17 Be-7 l.70 E-01 l.34E-02 7.62E-03 AP ONS-3 436558007 9/27/20 1 7 Ce-1 4 1 4.86E-04 8.56 E-04 2.78E-03 u AP ONS-3 436558007 9/27/20 1 7 Ce-1 44 -2.35E-04 6.45 E-04 1.95£-0 3 u AP ONS-3 436558007 9/27/20 1 7 Co-57 3. l JE-05 7.81 E-05 2.54E-04 u AP ONS-3 436558007 9/27/2017 Co-58 -4.0S E-05 2.27E-04 7.38E-04 u D-2 3 Donald C. Cook Nucle ar Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.D EV. MDC FLAGS TYPE STATION LSN D ATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3) AP ONS-3 436558007 9/27/20 1 7 Co-60 1.1 4E-05 l.46E-04 4.78£-04 u AP ONS-3 436558007 9/27/20 1 7 C r-5 1 -6.79E-04 7.97£-03 2.63£-02 u AP ONS-3 436558007 9/27/20 1 7 Cs-1 34 8.32£-05 l.22E-04 4.44£-04 u AP ONS-3 436558007 9/27/20 1 7 Cs-1 37 -2.00E-05 l.27E-04 4.25£-04 u AP ONS-3 436558007 9/27/20 1 7 Fe-59 -9.47£-04 1.05£-03 2.1 2£-03 u AP ONS-3 436558007 9/27/20 1 7 1-1 3 1 -4.99£-0 1 3.09£-0 1 O.OOE+OO u AP ONS-3 436558007 9/27/20 1 7 K-40 2.30£-03 2. I IE-03 7.97£-03 u AP ONS-3 436558007 9/27/20 1 7 La-140 1.06£-02 2.05E-02 7.54E-02 u AP ONS-3 436558007 9/27/20 1 7 M n-54 1.62£-04 1.04£-04 4.1 6E-04 u AP ONS-3 436558007 9/27/20 1 7 Nb-95 -1.17£-04 2.74E-04 9.1 7£-04 u AP ONS-3 436558007 9/27/20 1 7 Ru-103 -8.73£-05 5.56£-04 1.76£-03 u AP ONS-3 436558007 9/27/20 1 7 R u-1 06 -2.19£-04 9.87E-04 3.0 I E-03 u AP ONS-3 436558007 9/27/20 17 S b-1 24 5.21£-04 8.79£-04 3.25£-03 u AP ONS-3 436558007 9/27/20 1 7 S b-125 4.7 1 E-05 2.83£-04 9.6 1 E-04 u AP ONS-3 436558007 9/27/20 1 7 Se-75 4.97£-05 2.24£-04 7.65£-04 u AP ONS-3 436558007 9/27/20 1 7 T h-228 2.83£-04 4.35E-04 7.80E-04 u AP ONS-3 436558007 9/27/20 1 7 Zn-65 -3.40E-04 3.62E-04 9.50£-04 u AP ONS-3 436558007 9/27/20 1 7 Zr-95 2.77£-04 4.80£-04 l.73E-03 u AP ONS-4 436558008 9/27/2017 Ac-228 -7.12£-05 3.24E-04 l.1 9E-03 u AP ONS-4 436558008 9/27/20 1 7 Ag-1 08m 2.73£-05 6.96£-05 2.4 1 E-04 u AP ONS-4 436558008 9/27/20 1 7 Ag-ll Om -1.43£-04 1.60£-04 4. 1 4E-04 u AP ONS-4 436558008 9/27/20 1 7 Ba-1 40 -9.97£-03 3.05£-02 9.54E-02 u AP ONS-4 436558008 9/27/20 1 7 Be-7 1.67£-0 1 l.26E-02 5.73£-03 AP ONS-4 436558008 9/27/20 1 7 Ce-1 41 -9.50£-04 7.37£-04 2. 1 6£-03 u AP ONS-4 436558008 9/27/20 1 7 Ce-1 44 -2.54£-04 4.96£-04 l.54E-03 u AP ONS-4 436558008 9/27/20 1 7 Co-57 -1.94£-05 6.43£-05 1.88£-04 u AP ONS-4 436558008 9/27/20 1 7 Co-58 -I .04£-04 2.05£-04 5.98£-04 u AP ONS-4 436558008 9/27/20 1 7 Co-60 -8.09£-05 9.9 1 E-05 2.62£-04 u AP ONS-4 436558008 9/27/20 1 7 Cr-5 1 3.67£-03 5.73£-03 2.03£-02 u AP ONS-4 436558008 9/27/20 1 7 Cs-1 34 -1.32£-04 I .32£-04 3.53£-04 u AP ONS-4 436558008 9/27/20 1 7 Cs-1 37 -1.40£-0 4 1.27£-04 4.04£-04 u AP ONS-4 436558008 9/27/20 1 7 Fe-59 -1.42£-04 6.85E-04 2.22£-03 u AP ONS-4 436558008 9/27/20 1 7 1-1 3 1 -6.87£-0 2 1.78£-01 O.OOE+OO u AP ONS-4 436558008 9/2 7/20 17 K-40 -7.78£-05 I .48E-03 5.49£-03 u AP ONS-4 436558008 9/27/20 1 7 La-1 40 1.76£-02 1.5 5£-02 6.I OE-02 u AP ONS-4 436558008 9/27/20 1 7 Mn-54 O.OOE+OO O.OOE+OO 3.6 1£-04 u AP ONS-4 436558008 9/27/20 1 7 Nb-95 -2.85£-04 2.31£-04 5.59£-04 u AP ONS-4 436558008 9/2 7/20 17 R u-1 03 5.68£-04 3.88£-04 I .40£-03 u AP ONS-4 436558008 9/27/2017 R u-1 06 -9.86E-04 9.55£-04 2.6 1£-03 u AP ONS-4 436558008 9/27/20 1 7 Sb-1 24 3. I OE-04 3.07£-04 1.39£-03 u AP ONS-4 436558008 9/27/20 1 7 Sb-1 25 -2.64£-04 2.1 9£-04 6.07£-04 u AP ONS-4 436558008 9/2 7/20 1 7 Se-75 7.84£-05 1.66£-04 5.36£-04 u AP ONS-4 436558008 9/27/20 1 7 Th-228 1.83£-04 2.56£-04 5.92£-04 u AP ONS-4 436558008 9/27/20 1 7 Z n-65 -1.30E-0 5 2.73£-04 9.1 2E-04 u AP ONS-4 436558008 9/27/20 1 7 Zr-95 -2. l3E-05 3.64£-04 l.1 6E-03 u AP ONS-5 436558009 9/27/20 1 7 Ac-228 -5.27£-04 5.43£-04 1.72£-03 u AP ONS-5 436558009 9/27/20 1 7 Ag-1 08m 2.46£-04 1.07£-04 3.67E-04 u AP ONS-5 436558009 9/27/2017 Ag-ll Om -5.55E-05 2.07£-04 6.74£-04 u AP ONS-5 436558009 9/27/20 1 7 Ba-1 40 -1. I OE-01 5.89£-02 1.22£-0 1 u AP ONS-5 436558009 9/27/20 1 7 Be-7 1.77£-0 1 I .32£-02 8.64£-03 0-2 4 Don a ld C. Cook Nuclear Pl ant Annual Radiologi c al Envi r onmental Operating Report 2017 SAMPLE END CO NC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3) AP ONS-5 436558009 9/27/20 1 7 Ce-1 4 1 3.7 5E-0 3 l.65 E-03 2.24E-0 3 Ul AP ONS-5 436558009 9/27/20 17 Ce-144 3.52E-04 5.96E-04 2.07E-03 u AP ONS-5 436558009 9/27/20 1 7 Co-57 -6.79E-06 7.5 1 E-05 2.52E-04 u AP ONS-5 436558009 9/27/20 17 Co-58 -3.57£-04 2.30£-0 4 5.1 2£-0 4 u AP ONS-5 436558009 9/27/20 17 Co-60 -3.1 4E-05 1.36£-04 4.29£-04 u AP ONS-5 436558009 9/27/20 1 7 Cr-5 1 -2.99E-03 8.50£-03 2.71E-02 u AP ONS-5 436558009 9/27/20 1 7 Cs-134 3.60E-04 1.66£-04 6.1 I E-04 u AP ONS-5 436558009 9/27/20 1 7 Cs-137 -2.08£-05 9.78£-05 3.00E-04 u AP ONS-5 436558009 9/27/20 17 Fe-59 6.43E-04 7.36 E-04 2.80E-03 u AP ONS-5 436558009 9/27/20 1 7 1-13 1 -3.06E-0 1 2.11£-01 O.OOE+OO u AP ONS-5 436558009 9/27/20 17 K-40 -7.68E-05 l.93E-03 6.59£-0 3 u AP ONS-5 436558009 9/27/20 1 7 La-1 40 -1.79E-02 l.81E-02 4.06E-0 2 u AP ONS-5 436558009 9/27/2017 Mn-54 -l.4 7E-04 1.3 1 E-04 3.57£-0 4 u AP ONS-5 436558009 9/27/20 1 7 Nb-95 3.75E-05 2.17£-04 7.lOE-04 u AP ONS-5 436558009 9/27/20 1 7 Ru-I 03 5.59E-04 4.40 E-04 l.58E-03 u AP ONS-5 436558009 9/27/20 1 7 Ru-I 06 l.37E-03 1.32£-03 4.60E-0 3 u AP ONS-5 436558009 9/27/20 1 7 Sb-124 -7.7 1 E-04 9.24£-04 2.39E-03 u AP ONS-5 436558009 9/27/20 1 7 Sb-125 3.79£-04 2.84£-04 1.01£-03 u AP ONS-5 436558009 9/27/20 1 7 Se-75 6.09E-05 1.83£-04 6.1 9E-04 u AP ONS-5 436558009 9/27/20 17 T h-228 l.32E-0 4 1.90 E-04 6.53E-04 u AP ONS-5 436558009 9/27/2017 Zn-65 2.6 1£-04 3.37£-04 1.23£-0 3 u AP ONS-5 436558009 9/27/20 1 7 Zr-95 -3.89£-04 4.42£-04 1.1 2E-03 u AP ONS-6 4365580 1 0 9/27/20 1 7 Ac-228 8.83£-06 3.89£-04 1.40£-03 u AP ONS-6 4365580 1 0 9/27/20 1 7 Ag-1 08m -8.36E-05 6.69£-05 1.81 E-04 u AP ONS-6 4365580 10 9/27/20 1 7 Ag-1 l O m 3.82 E-04 1.64£-04 6.36£-04 u AP ONS-6 4365580 1 0 9/27/20 1 7 Ba-140 -3.9 1£-02 3.50£-02 9.09£-02 u AP ONS-6 4365580 10 9/27/20 1 7 Be-7 1.37£-0 1 1.11 E-02 8.0 1£-03 AP ONS-6 4365580 10 9/27/20 1 7 Ce-1 41 1.1 6£-03 9.50E-04 1.75E-0 3 u AP ONS-6 436558010 9/27/20 1 7 Ce-1 44 -3.58E-05 4.38E-04 1.41E-03 u AP ONS-6 4365580 10 9/27/20 1 7 Co-57 -7.50E-05 7.20E-05 2. IOE-04 u AP ONS-6 436558010 9/27/20 1 7 Co-58 -1.31£-04 1.9 3£-04 5.32£-0 4 u AP ONS-6 4365580 1 0 9/27/20 1 7 Co-60 -3.96E-05 9.63£-05 2.88E-04 u AP ONS-6 436558010 9/27/20 1 7 Cr-51 1.39£-03 5.47£-03 l.90E-02 u AP ONS-6 4365580 10 9/27/20 1 7 Cs-134 2.1 6£-0 4 1.27£-04 4.66£-0 4 u AP ONS-6 436558010 9/27/20 1 7 Cs-137 4.87£-05 7.91£-05 2.79£-04 u AP ONS-6 4365580 10 9/27/20 1 7 Fe-59 -7.1 6£-0 5 7.42£-04 2.46 E-03 u AP ONS-6 4365580 1 0 9/27/20 1 7 1-13 1 -1.80E-01 2.1 4£-0 1 0.00£+00 u AP ONS-6 436558010 9/27/20 1 7 K-40 -5.71E-04 1.28£-03 4.75£-03 u AP ONS-6 4365580 10 9/27/20 1 7 La-1 40 2.23£-0 2 J.76 E-02 6.98E-02 u AP ONS-6 436558010 9/27/20 1 7 Mn-54 -1.0 3E-04 1.1 8£-04 3.17 E-04 u AP ONS-6 436558010 9/27/20 1 7 N b-95 -2.09E-04 2.51E-04 6.93E-0 4 u AP ONS-6 436558010 9/27/20 17 Ru-1 03 7.1 7E-0 4 3.81E-04 l.39E-03 u AP ONS-6 436558010 9/27/20 1 7 Ru-1 06 -I .43E-03 9.36 E-04 2.13E-0 3 u AP ONS-6 4365580 10 9/27/20 1 7 Sb-1 24 -9.2 1 E-04 6.1 6 E-04 5.97 E-04 u AP ONS-6 436558010 9/27/20 1 7 Sb-1 25 -3.03E-04 2.30 E-04 6.23£-04 u AP ONS-6 4365580 10 9/27/20 17 Se-75 5.82E-05 l.50 E-04 4.83E-04 u AP ONS-6 4365580 1 0 9/27/2017 Th-228 -1.48E-04 l.60E-04 4.72£-04 u AP ONS-6 436558010 9/27/20 1 7 Zn-65 -5.99E-05 2.28 E-04 7.30E-0 4 u AP ONS-6 4365580 1 0 9/27/20 1 7 Zr-95 -4.98E-05 4.86 E-04 I .55E-0 3 u AP NBF 43450400 1 1 0/4/20 1 7 B E TA 2.68E-0 2 1.62£-03 I .30E-03 D-2 5 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE E ND CONC ST D.D E V. MDC FLAGS TYPE STATION LSN DAT E NUCLIDE (pCi/m3) (pCi/m 3) (pCi/m3) AP SBN 434504002 10/4/20 17 BETA 2.30 E-02 1.4 5 E-0 3 1.22E-03 AP DOW 434504003 10/4/2017 BETA 2.32E-02 1.51 E-0 3 1.3 0E-03 AP COL 434504004 10/4/2017 BETA 2.38E-02 1.4 7 E-0 3 1.2 1 E-03 AP ONS-1 434504005 10/4/2017 BETA 2.58E-0 2 I .59E-0 3 1.30E-03 AP ONS-2 434504006 10/4/2 017 BETA 2.78E-02 I .62E-03 l.27E-03 AP ONS-3 434504007 I 0/4/20 1 7 B ETA 2.60E-0 2 I .57 E-03 l.27E-03 AP ONS-4 434504008 10/4/20 17 BETA 2.52E-02 l.5 I E-03 1.2 1 E-0 3 AP ONS-5 434504009 10/4/20 1 7 BETA 2.55E-0 2 1.56E-0 3 1.27£-03 AP ONS-6 434504010 10/4/20 17 BETA 2.18 E-02 1.46£-03 1.29£-0 3 AP NBF 43524600 1 10/1 1/20 1 7 BETA 4.20£-02 2.05£-03 1.35£-03 AP SBN 435246002 10/11/2017 BETA 4.29£-02 1.9 8£-03 l.24E-0 3 AP DOW 435246003 10/1 1/20 17 B ETA 3.66£-02 l.90E-03 1.34E-03 AP COL 435246004 10/11/20 1 7 BETA 3.91£-0 2 1.92£-03 1.27£-0 3 AP ONS-1 435246005 10/1 1/20 1 7 BETA 3.89£-02 1.97£-03 1.35£-0 3 AP ONS-2 435246006 10/11/20 1 7 BETA 3.97£-0 2 1.92£-03 1.26E-03 AP ONS-3 435246007 10/11/201 7 BETA 4.36£-02 2.0 6E-03 l.32E-03 AP ONS-4 435246008 I 0/11/2017 BETA 4.1 6E-0 2 1.96£-03 l.24E-03 AP ONS-5 435246009 I 0/11/2017 BETA 3.95£-0 2 1.96£-0 3 1.31£-03 AP ONS-6 435246010 10/11/20 1 7 BETA 3.90£-02 l.96E-03 1.33£-0 3 AP NBF 435541001 I 0/18/2017 BETA 2.70£-0 2 l.63 E-0 3 l.3 I E-0 3 AP SBN 43554 10 02 I 0/18/20 1 7 BETA 2.73E-0 2 1.58£-03 l.22E-03 AP DOW 43554100 3 10/18/20 17 BETA 2.6 1 E-02 1.6 1 E-03 l.32 E-0 3 AP C OL 43554 10 04 I 0/18/20 1 7 BETA 2.99£-02 l.67E-03 l.26E-03 AP ONS-1 43554 100 5 10/18/20 1 7 BETA 3.06E-02 1.73£-03 1.30£-03 AP ONS-2 43554 10 06 10/18/20 1 7 BETA 3.06E-0 2 1.70£-03 1.27£-03 AP ONS-3 43554 1 007 I 0/18/20 1 7 BETA 3.05£-02 1.70£-03 1.27£-03 AP ONS-4 435541008 I 0/18/2017 B ETA 3.05£-02 1.66£-03 l.22E-03 AP ONS-5 4 355 41009 10/18/20 1 7 B ETA 2.65£-0 2 1.58£-0 3 1.26£-03 AP ONS-6 435541010 I 0/18/20 17 BETA 2.96E-02 1.70£-03 l.3 I E-03 AP NBF 436477001 10/25/2017 B ETA 2.56£-02 3.1 4£-03 1.30£-03 AP SBN 436477002 10/25/2017 BETA 2.41£-02 2.96£-03 1.24£-03 AP DOW 4 364 77003 10/25/20 17 BETA 2.67£-02 3.1 7£-03 1.28£-03 AP COL 436477004 10/25/2017 BETA 2.30£-02 2.89E-0 3 1.23£-03 AP ONS-1 436477005 I 0/25/2017 BETA 2.56£-0 2 3.17£-03 1.33£-03 AP ONS-2 436477006 10/25/2017 BETA 2.49£-02 2.95£-03 1.1 9£-03 AP ONS-3 436477007 10/25/20 1 7 BETA 2.41£-0 2 3.0 l E-03 1.27£-03 AP ONS-4 436477008 I 0/25/2017 BETA 2.8 1£-0 2 3.14£-0 3 1.20E-03 AP ONS-5 436477009 10/25/2017 BETA 2.3 l E-0 2 2.97£-03 1.28£-03 AP ONS-6 436477010 10/25/20 17 BETA 2.58£-0 2 3.12£-03 1.28E-03 AP NBF 436992001 11/1/2017 BETA 1.15£-02 I .09 E-0 3 1.2 7£-0 3 AP SBN 43699200 2 11/1/2017 BETA 1.32£-02 1.12 E-03 1. I 9E-03 AP DOW 436992003 11/1/2017 BETA 1.0 8£-02 1.05£-0 3 1.25£-0 3 AP COL 436992004 11/1/20 1 7 B ETA 1.29£-02 I. I I E-03 1.1 9£-03 AP ONS-1 436992005 11/1/2017 BETA 1.23£-0 2 1.11 E-03 1.2 5£-03 AP ONS-2 436992006 11/1/2017 BETA 1.03£-02 9.94E-04 1.1 7E-03 AP ONS-3 436992007 I 1/1/20 1 7 B ETA 1.35£-0 2 l.14 E-0 3 1.2 1 E-03 AP ONS-4 436992008 11/1/2017 B ETA 1.38£-02 1.12£-0 3 1.15£-03 AP ONS-5 436992009 11/1/2017 B ETA 1.0 2£-02 1.01 E-0 3 1.23£-03 AP ONS-6 436992010 11/1/20 17 B ETA 1.49£-02 1.21£-03 1.25£-03 AP NBF 437609001 11/8/20 1 7 B ETA 2.96E-0 2 l .70E-0 3 l.22E-03 D-26 Don a ld C. Cook Nuclear Plant Annual R a d i ologi c al Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3) AP SBN 437609002 11/8/2017 BETA 2.84E-02 l.59E-03 1.11 E-03 AP DOW 437609003 11/8/2017 BETA 2.59E-02 l .57E-03 1.20E-03 AP COL 437609004 11/8/2017 BETA 2.78E-02 1.60E-03 1.15E-03 AP ONS-1 437609005 11/8/2017 BETA 2.99E-02 l.69E-03 1.20E-03 AP ONS-2 437609006 11/8/20 1 7 BETA 3.00 E-02 l.66 E-03 l .16 E-03 AP ONS-3 437609007 11/8/20 1 7 BETA 3.08E-02 1.70E-03 I .18 E-03 AP ONS-4 437609008 11/8/20 1 7 B E TA 3.05E-02 I.66E-03 l. I 3E-03 AP ONS-5 437609009 11/8/20 1 7 BETA 2.98E-02 l.70 E-03 1.22E-03 AP ONS-6 437609010 11/8/20 1 7 B E TA 2.86E-02 l.64E-03 l.19 E-03 AP NBF 43823100) 11/15/2017 B E TA 3.22E-02 I.74 E-03 I.26E-03 AP SBN 438231002 11/15/2017 BETA 3.40E-02 1.74 E-03 I .19E-03 AP DOW 438231003 11/15/2017 B E TA 3.60E-02 l.84 E-03 l.26E-03 AP COL 438231004 1 1/15/2017 BETA 3.46E-02 I.77 E-03 l.22E-03 AP ONS-1 438231005 11/15/2017 BETA 3.79E-02 I .92E-03 l.30E-03 AP ONS-2 438231006 11/15/2017 BETA 3.05 E-02 l.65E-03 1.19 E-03 AP ONS-3 438231007 11/15/2017 BETA 3.71E-02 1.86E-03 l.25 E-03 AP ONS-4 4 3823 1008 11/15/2017 BETA 3.93E-02 1.95 E-03 l.30 E-03 AP ONS-5 438231009 11/15/2017 BETA 3.75E-02 1.91 E-03 l.30E-03 AP ONS-6 4 3823 1010 11/15/20 1 7 BETA 3.49E-02 1.84E-03 1.3 IE-03 AP NBF 438632001 1 1/22/2017 BETA 3.97E-02 I.9 6E-03 l.26E-03 AP SBN 438632002 1 1/22/2017 B E TA 3.30E-02 I.74E-03 l.19 E-03 AP DOW 438632003 1 1/22/20 1 7 BETA 3.15E-02 I.74E-03 l.26E-03 AP COL 438632004 1 1/22/20 1 7 BETA 3.0 l E-02 1.66E-03 1.20 E-03 AP ONS-1 438632005 11/22/2017 BETA 3.33E-02 l.78 E-03 l.24E-03 AP ONS-2 438632006 1 1/22/20 1 7 BETA 3.45E-02 I.76 E-03 1.18 E-03 AP ONS-3 438632007 1 1/22/2017 B E TA 3.1 7E-02 1.72E-03 l.22E-03 AP ONS-4 438632008 1 1/22/2017 B E TA 3.02E-02 l.72E-03 1.28E-03 AP ONS-5 438632009 11/22/2017 BETA 3.34E-02 I.8IE-03 l.28E-03 AP ONS-6 438 6320 1 0 11/22/2017 BETA 3.31E-02 1.77 E-03 1.24E-03 AP NBF 4 3908900 1 11/29/20 1 7 BETA 3.l l E-02 1.76E-03 l.30E-03 AP SBN 439089002 11/29/2017 B E TA 2.93E-02 l.63 E-03 1.1 9E-03 AP DOW 4 39089003 11/29/2017 BETA 3.47E-02 l.89E-03 1.34E-03 AP COL 439089004 11/29/20 1 7 BETA 3.33E-02 1.78 E-03 I.24E-03 AP ONS-1 439089005 11/29/2017 BETA 3.14E-02 1.73E-03 l.24E-03 AP ONS-2 4 39089006 11/29/20 1 7 BETA 3.64E-02 l.82E-03 l.l 9E-03 AP ONS-3 4 39089007 1 1/29/20 1 7 B E TA 3.29E-02 l.77 E-03 l.25E-03 AP ONS-4 439089008 11/29/20 17 B E TA 3.20E-02 1.78E-03 I .29E-03 AP ONS-5 439089009 11/29/20 1 7 BETA 3.84E-02 l.92 E-03 l.25E-03 AP ONS-6 4390890 1 0 11/29/20 1 7 BETA 3.46E-02 1.80E-03 l.23 E-03 AP NBF 43966300 1 12/6/20 1 7 BETA 3.9 1 E-02 l.95 E-03 l.2 4 E-03 AP SBN 439663002 12/6/20 1 7 BETA 3.89E-02 1.87 E-03 I.14 E-03 AP DOW 439663003 1 2/6/20 1 7 BETA 3.36E-02 1.78 E-03 1.21 E-03 AP COL 439663004 1 2/6/20 17 B E TA 3.55E-02 I .83E-03 l.20 E-03 AP ONS-1 439663005 1 2/6/2017 B E TA 3.34E-02 l.80 E-03 l.24E-03 AP ONS-2 439 663006 1 2/6/20 1 7 BETA 3.29E-02 l.77 E-03 l.22E-03 AP ONS-3 439663007 12/6/2017 B E TA 3.72E-02 l.86E-03 l.18 E-03 AP ONS-4 439 663008 1 2/6/20 17 B E TA 3.99 E-02 1.96E-03 l.23E-03 AP ONS-5 43 9663009 1 2/6/20 1 7 BETA 3.79E-02 l.91 E-03 l.22E-03 AP ONS-6 439 6630 10 1 2/6/2017 B E TA 3.42E-02 l.77 E-03 I. l 7E-03 AP NBF 440158001 1 2/13/20 1 7 BETA 3.32E-02 l.54E-03 l.30E-03 D-27 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 S AMPL E E ND CO N C STD.D EV. MD C F L AGS T YP E STA TION L S N D ATE NU CLIDE (pCi/m 3) (pCi/m 3) (pC i/m3) AP SBN 440 1 58002 1 2/1 3/20 1 7 BETA 3.54E-02 l.53E-03 l.22E-03 AP DOW 440 1 58003 1 2/13/20 1 7 BETA 3.46E-02 l.62E-03 1.4 2E-03 AP COL 440 1 58004 1 2/13/20 1 7 BETA 3.13E-02 l.44E-0 3 l.20E-03 AP ONS-1 440 1 58005 1 2/1 3/20 1 7 BETA 2.92E-02 I .46E-03 l.39E-03 AP ONS-2 440 1 58006 I 2/1 3/20 1 7 BETA 3.48E-02 l.5 6E-0 3 l.28E-03 AP ONS-3 440 1 58007 1 2/1 3/20 1 7 BETA 3.05E-02 l.53E-0 3 I .43E-03 AP ONS-4 440 1 58008 1 2/1 3/2 01 7 BETA 3.21E-02 l.SI E-03 l.29E-03 AP ONS-5 440 1 58009 I 2/13/20 1 7 BETA 3. 1 6E-02 l.54E-03 l.44E-03 AP ONS-6 440 1 580 1 0 1 2/13/20 1 7 BETA 3.1 I E-02 l.51E-03 l.33E-03 AP NBF 440693 0 0 1 1 2/2 0/2 01 7 BETA 4.05E-02 1.7 5£-03 1.42£-03 AP SBN 440693002 I 2/20/20 1 7 BETA 3.75£-0 2 1.64£-03 l.3 6E-03 AP DOW 440693003 1 2/20/20 1 7 BETA 3.56£-02 l.61E-03 l.33E-03 AP COL 440693004 1 2/20/20 1 7 BETA 3.97E-02 l.7 0 E-03 1.35£-03 AP ONS-1 440693005 1 2/2 0/2 01 7 BETA 3.90 E-02 l.7 0 E-03 1.40£-03 AP ONS-2 440693006 1 2/20/2 0 1 7 BETA 4.24E-02 l.72E-03 1.29£-03 AP ONS-3 440693007 1 2/2 0/20 1 7 BETA 4.08E-0 2 1.74E-03 1.36£-03 AP ONS-4 440693008 1 2/2 0/20 1 7 BETA 4.00E-02 1.74E-03 l.43E-03 AP ONS-5 440693009 1 2/20/20 1 7 BETA 3.9 1£-0 2 l.69E-03 I .33E-03 AP ONS-6 4406930 1 0 12/20/20 1 7 BETA 4.05£-02 J.73E-03 1.36£-03 AP NBF 44084800 1 1 2/27/2 01 7 BETA 3.1 6E-0 2 1.5 0£-03 1.28E-03 AP SBN 440848002 1 2/27/20 1 7 B E TA 3.1 5£-02 1.48£-03 l.3 IE-03 AP DOW 440848003 1 2/27/20 1 7 BETA 3.43E-0 2 1.5 9£-03 l.33E-03 AP COL 440848004 1 2/27/20 1 7 B E TA 3.20£-0 2 1.46E-03 1.22£-03 AP ONS-1 440848005 1 2/27/20 1 7 BETA 3.28E-0 2 l.5 7E-03 1.4 1 E-03 AP ONS-2 440848006 1 2/27/20 1 7 BETA 3.29£-02 l.5 2E-0 3 1.27£-03 AP ONS-3 440848007 1 2/2 7/2 01 7 BETA 3.62E-0 2 l.6 1 E-03 l.3 l E-03 AP ONS-4 440848008 1 2/2 7/20 1 7 BETA 3.2 1 E-02 1.53£-03 l.37E-03 AP ONS-5 440848009 1 2/27/20 1 7 BETA 3.20E-0 2 l.5 l E-03 l.28E-03 AP ONS-6 4408480 1 0 1 2/27/20 17 BETA 3.32£-02 l.54 E-0 3 1.31 E-03 AP NBF 44 1 642001 1 2/2 7/20 1 7 Ac-228 -5.02£-0 4 4.63£-0 4 l.59E-03 u AP NBF 44 1 642001 1 2/27/20 1 7 Ag-1 08m -5.30£-0 5 7.85E-0 5 2.30E-04 u AP NBF 44 1 642001 1 2/27/20 17 Ag-I I O m 8.94E-05 l.72E-0 4 6.1 9£-04 u AP NBF 44 1 642001 1 2/27/20 1 7 Ba-1 40 -9.26E-0 3 1.52E-0 2 4.48£-02 u AP NBF 44 1 64200 1 1 2/27/20 1 7 Be-7 1.20£-01 9.7 0 E-03 6.53£-03 AP NBF 44 1 64200 1 1 2/27/2 01 7 Ce-1 4 1 -4.1 7£-0 4 4.98E-0 4 l.56E-03 u AP NBF 4 4 1 642001 1 2/27/20 1 7 Ce-1 44 1.49£-0 5 5.55£-0 4 1.88£-03 u AP NBF 44 1 64200 1 1 2/27/20 1 7 Co-57 5.51E-0 5 7.26E-05 2.53£-04 u AP NBF 44 1 6 4 200 1 1 2/27/20 1 7 Co-58 -6.08£-05 2.02E-04 6.56E-04 u AP NBF 44 1 64200 1 1 2/27/20 1 7 Co-60 2.76£-04 1.66£-04 6.34E-04 u AP NBF 44 1 642 0 01 1 2/27/20 1 7 C r-51 -1.42£-03 4.61E-03 1.48£-02 u AP NBF 44 1 64200 1 1 2/27/20 1 7 Cs-1 34 -6.46£-05 1.23£-04 3.85£-04 u AP NBF 44 1 64200 1 1 2/27/20 1 7 Cs-137 -9.89£-0 5 1.59£-04 4.67E-04 u AP NBF 44 1 642 0 01 1 2/27/20 1 7 Fe-59 4.1 8E-05 4.84£-04 1.65E-03 u AP NBF 44 1 642001 1 2/27/2 01 7 1-1 31 7.90 E-03 2.72E-0 2 9.1 7£-02 u AP NBF 44 1 64200 1 I 2/2 7/20 1 7 K-40 2.1 8£-0 3 1.62£-03 4.ll E-03 u AP NBF 44 1 64200 1 12/27/20 1 7 La-1 40 -2.42£-0 3 4. 13 E-0 3 l.09E-02 u AP NBF 44 1 64200 1 1 2/27/20 17 M n-54 -1.59E-05 8.84£-0 5 2.90E-04 u AP NBF 44 1 64200 1 I 2/27/201 7 Nb-95 l.59E-04 2.48£-0 4 8.43£-04 u AP NBF 44 1 64200 1 1 2/27/2 01 7 Ru-I 03 5.22£-0 4 3.59E-04 l.26E-03 u AP NBF 44 1 64200 1 1 2/27/20 17 R u-1 06 -6.81E-0 4 l.27E-03 3.77£-03 u 0-28 Don a ld C. Cook Nuclear Plan t Annua l Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pC i/m3) (pCi/m3) (pCi/m3) AP NBF 44164200 1 12/27/20 1 7 Sb-124 -6.1 1 E-04 6.86E-04 1.73£-03 u AP NBF 44164200 1 12/27/20 1 7 Sb-1 25 -1.0IE-04 2.77£-04 8.62£-04 u AP NBF 441642001 12/27/2017 Se-7 5 -6.81£-05 1.80£-04 5.76E-04 u AP NBF 441642001 12/27/2017 T h-228 -I. I OE-04 1.85£-04 5.86£-04 u AP NBF 441642001 1 2/27/2017 Z n-65 3.94£-05 2.37E-04 8.16 E-0 4 u AP NBF 44 1 64200 1 12/27/2017 Z r-95 -2.14£-0 4 4.18E-04 1.21 E-03 u AP SBN 44 1 642002 1 2/27/2017 Ac-228 2.27£-04 3.96£-04 1.45£-03 u AP SBN 441642002 12/27/2017 Ag-1 08 m 7.48£-0 6 5.55£-05 1.89£-04 u AP SBN 441642002 12/27/20 1 7 Ag-1 I Om 4.87£-05 1.07£-04 3.72E-04 u AP SBN 441642002 12/27/2017 Ba-14 0 -4.88£-0 3 8.04E-03 2.36£-02 u AP SBN 44 1 642002 12/27/20 1 7 Be-7 1.06£-01 8.1 2E-03 2.58£-0 3 AP SBN 44 1 642002 1 2/27/20 1 7 Ce-1 4 1 2.25£-04 3.7 3£-04 1.24£-03 u AP SBN 44 1 642002 12/27/20 1 7 Ce-1 44 -2.88£-04 3.89£-04 1.16£-03 u AP SBN 441642002 12/27/20 1 7 Co-57 5.37£-05 5.21£-05 1.7 8£-04 u AP SBN 441642002 12/27/20 1 7 Co-58 -1.38£-05 l .40E-04 4.39£-04 u AP SBN 44 1 642002 1 2/27/2017 Co-60 -7.83£-05 8.24E-05 1.92£-04 u AP SBN 44 1 642002 12/27/2017 C r-5 1 3.54£-03 3.63£-03 1.28£-02 u AP SBN 44 1 642002 1 2/27/2017 Cs-1 34 -2.38£-05 1.23£-04 3.83£-04 u Al' SBN 44 1 642002 1 2/27/2017 Cs-1 37 1.02£-04 7.15£-05 2.72£-04 u Al' SBN 44 1 642002 12/27/2017 Fe-59 -2. l l E-0 4 4.58£-04 1.41£-0 3 u Al' SBN 44 1 642002 1 2/27/2017 1-1 3 1 1.47£-02 2.50E-02 8.78£-0 2 u AP SBN 441642002 12/27/20 1 7 K-40 3.3 5 E-0 3 1.51 E-0 3 4.18£-03 u Al' SBN 441642002 12/27/20 1 7 La-1 40 -1.07£-04 3.9 1 E-0 3 1.27£-02 u AP SBN 441642002 1 2/27/20 1 7 Mn-54 -3.59£-05 1.2 2E-04 3.91£-04 u AP SBN 44 1 642 002 12/2 7/20 1 7 Nb-95 -1.23£-04 1.7 3£-04 4.86£-04 u AP SBN 441642002 12/27/20 1 7 Ru-1 0 3 -2.49£-04 2.33£-04 6.06£-04 u Al' SBN 44 1 642002 12/27/20 1 7 Ru-1 06 -8.53£-04 8.72£-04 2.40£-03 u AP SBN 44 1 642002 12/27/20 1 7 Sb-1 24 -7.12£-0 4 5.44E-04 1.04£-0 3 u AP SBN 441642002 12/27/2017 Sb-1 25 1.94£-04 2.09£-04 7.47£-04 u AP SBN 44 1 642002 12/27/2017 Se-75 6.44E-05 1.30£-0 4 4.23£-04 u AP SBN 44 1 642002 12/27/2017 T h-228 2.07£-04 l.52E-0 4 5.32£-04 u AP SBN 44 1 642002 1 2/27/2017 Zn-65 -1.66£-04 2.l l E-0 4 5.92£-04 u AP SBN 441642002 12/27/2017 Zr-95 -1.48£-0 5 2.83£-04 9.04£-04 u AP D OW 441642003 12/27/2017 Ac-228 2.17£-04 5.94£-04 2.1 I E-0 3 u AP DOW 441642003 12/27/2017 Ag-108m 5.92E-05 8.84£-05 3.1 I E-04 u AP DOW 44 1 642003 1 2/27/20 1 7 Ag-I I Om -2.84 E-0 4 2.30E-04 6.20£-04 u AP DOW 44 1 642003 12/27/20 1 7 Ba-1 40 2.16E-02 1.4 4E-02 5.29£-02 u AP DOW 441642003 12/2 7/20 1 7 Be-7 1.2 6£-01 l.02 E-0 2 8.05£-03 AP DOW 441642003 12/27/20 1 7 Ce-1 4 1 -1.74£-04 5.49£-04 1.70£-03 u AP D OW 44 1 642003 12/27/2017 Ce-144 -4.09£-04 5.65E-04 1.6 6£-0 3 u AP D OW 44 1 642003 12/27/20 1 7 Co-57 9.68E-07 7.60E-05 2.44£-04 u AP DOW 44 1 642003 12/27/2017 Co-58 -3.24£-0 4 2.37£-04 5.15£-04 u AP DOW 44 1 642003 12/27/20 1 7 Co-60 -2.11 E-0 4 1.50£-04 2.93£-0 4 u Al' D OW 44 1 642003 12/27/2017 C r-51 4.09£-03 3.96E-03 1.4 2E-0 2 u AP DOW 44 1 642003 12/27/20 1 7 Cs-1 34 5.93E-06 l .42E-04 4.53E-04 u AP DOW 44 1 642003 12/27/2017 Cs-1 37 l .39E-04 I .30E-04 4.64£-04 u AP DOW 441642003 12/2 7/20 1 7 Fe-59 3.70£-04 4.33£-04 1.70£-03 u AP DOW 44 1 642003 12/27/20 1 7 1-1 31 -5.68£-02 3.49£-02 8.8 1£-02 u AP DOW 441642003 12/27/20 1 7 K-40 1.75£-04 I .90E-03 7.44£-03 u AP DOW 441642003 12/27/20 1 7 La-1 40 5.0 1 E-03 5.42E-0 3 2.IOE-02 u D-29 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE E ND CONC ST D.D EV. MDC FLAGS TYPE STATION LS N D ATE NUCLIDE (pCi/m3) (pC i/m3) (pC i/m3) AP DOW 44 1 642003 1 2/27/20 1 7 Mn-54 -l.07E-04 l .66E-04 4.84E-04 u AP DOW 44 1 642003 1 2/27/20 1 7 Nb-95 3.1 8E-05 2.78E-04 8.69E-04 u AP DOW 44 1 642003 12/2 7/20 1 7 R u-I 03 -1.58E-04 2.84E-04 8.53E-04 u AP DOW 44 1 642003 1 2/27/20 1 7 R u-I 06 1.51 E-03 1.1 4E-03 4.1 6E-03 u AP DOW 44 1 642003 1 2/27/20 1 7 Sb-1 24 5.46E-04 7.72E-04 2.8 1 E-03 u AP DOW 441642003 1 2/27/20 1 7 Sb-1 25 -4.05E-04 3.53E-04 9.99E-04 u AP DOW 44 1 642003 12/27/2017 Se-75 -7.39E-05 l.95E-04 6.44E-04 u AP DOW 441642003 12/27/2017 Th-228 -1.51 E-04 2.05E-04 7.I OE-04 u AP DOW 44 1 642003 1 2/27/20 1 7 Zn-65 -5.3 I E-04 4.50E-04 l.21E-03 u AP DOW 44 1 642003 1 2/27/20 1 7 Zr-95 2.89 E-04 4.1 2E-04 I .44E-03 u AP COL 44 1 642004 1 2/27/20 1 7 Ac-228 -1.05E-04 3.03E-04 l.03E-03 u AP COL 44 1 642004 1 2/27/20 1 7 Ag-1 08 m -3.29E-05 8.39E-05 2.68E-04 u AP COL 44 1 642004 1 2/27/20 1 7 Ag-I !Om -8.65E-05 1.4 1 E-04 4.29E-04 u AP COL 44 1 642004 1 2/27/20 1 7 Ba-1 40 3.59 E-02 l.53E-02 4.2 1 E-02 u AP COL 44 1 642004 1 2/27/2017 Be-7 9.62E-02 8.62E-03 5.82E-03 AP COL 44 1 642004 1 2/27/2017 Ce-1 41 -9.43E-05 4.09E-04 l.2 9E-03 u AP COL 44 1 642004 1 2/27/2017 Ce-1 44 7.96E-05 4.64E-04 1.5 1 E-03 u AP COL 44 1 642004 12/2 7/20 1 7 Co-57 2.46E-05 6.47E-05 l.99E-04 u AP COL 44 1 642004 1 2/27/2017 Co-58 7.08E-05 l.35E-04 4.92E-04 u AP COL 441642004 1 2/2 7/2017 Co-60 -4.44E-05 7.45E-05 l.95E-04 u AP COL 441642004 1 2/27/2017 C r-5 1 9.04 E-04 3.58E-03 1.23E-02 u AP COL 441642004 1 2/27/20 1 7 s-134 -1.18E-04 l.08E-04 2.82E-04 u AP COL 44 1 642004 12/27/2017 Cs-137 -9.53E-05 l. l OE-04 3.06E-04 u AP COL 44 1 642004 1 2/27/20 1 7 Fe-59 -3.05E-04 5.3 I E-04 l.58E-03 u AP COL 44 1 642004 1 2/27/20 1 7 1-1 3 1 l.67E-02 2.03E-02 7.30E-02 u AP COL 44 1 642004 1 2/27/20 1 7 K-40 -1.65E-03 l.28E-03 3.87E-03 u AP COL 44 1 642004 1 2/27/20 1 7 La-1 40 -2.51 E-03 4.64E-03 l.28E-02 u AP COL 44 1 642004 12/27/20 1 7 Mn-54 -5.30 E-05 l.19E-04 3.8 1 E-04 u AP COL 441642004 1 2/27/20 1 7 Nb-95 l.37E-04 1.53E-04 4.98E-04 u AP COL 441642004 1 2/27/20 17 R u-I 03 -5.56E-05 2.26E-04 7.1 9E-04 u AP COL 44 1 642004 1 2/27/20 17 R u-I 06 -8.23E-04 9.32E-04 2.59E-03 u AP COL 44 1 642004 1 2/27/20 1 7 Sb-1 24 2.26E-04 2.32E-04 l.05E-03 u AP COL 441642004 1 2/27/2017 Sb-1 25 3.53E-05 2.06E-04 6.97E-04 u AP COL 441642004 1 2/27/20 1 7 Se-75 -4.16E-05 l.25E-04 4.1 4E-04 u AP COL 44 1 642004 1 2/27/20 17 T h-228 5.53E-04 3. l 7E-04 6.30E-04 u AP COL 44 1 642004 1 2/27/20 17 Z n-65 1.65E-04 l .67E-04 6.58E-04 u AP COL 44 1 642004 I 2/27/20 1 7 Zr-95 -2.59 E-04 3.0 I E-04 7.89E-04 u AP ONS-1 44 1 642005 1 2/27/20 1 7 Ac-228 4.5 1 E-04 4.3 2E-04 l.45E-03 u AP ONS-1 44 1 642005 12/27/2017 A g-1 08m 3.75E-05 l .3 7E-04 2.42E-04 u AP ONS-1 44 1 642005 1 2/27/2017 Ag-l lOm 9.70E-05 l .66E-04 5.79E-04 u AP ONS-1 44 1 642005 1 2/27/20 1 7 Ba-140 l.38E-02 l .30E-02 4.38E-02 u AP ONS-1 44 1 642005 1 2/27/20 1 7 Be-7 1.1 1 E-0 I 8.39E-03 4.84E-03 AP ONS-1 44 1 642005 1 2/27/20 1 7 Ce-1 41 3.09E-04 4. I OE-04 l.42E-03 u AP ONS-1 44 1 642005 1 2/27/20 1 7 Ce-1 44 -3.75E-05 4.77E-04 l.63E-03 u AP ONS-1 44 1 642005 1 2/27/20 1 7 Co-57 -7.05E-05 6.1 6E-05 l.93E-04 u AP ONS-1 441642005 1 2/2 7/20 1 7 Co-58 2.l OE-04 3.07E-04 5.64E-04 u AP ONS-1 44 1 642005 1 2/27/20 1 7 Co-60 -7.72 E-05 1.2 1 E-04 3.50E-04 u AP ONS-1 44 1 642005 1 2/27/20 1 7 Cr-5 1 8.86E-04 3.59E-03 1.20E-02 u AP ONS-1 44 1 642005 1 2/27/20 1 7 Cs-1 34 5.28E-05 1.0 1 E-04 3.22E-04 u AP ONS-1 44 1 642005 1 2/27/20 1 7 Cs-1 37 -8.57E-05 8.62E-05 2.57E-04 u D-30 Don a ld C. Cook Nucle a r Plant Annual Radiologic a l Env i ronmental Operating Report 2017 SA MP LE END C O NC ST D.DEV. MDC FL A GS TYPE STATION LSN DATE NUCL ID E (pC i/m3) (pCi/m3) (pCi/m3) AP ONS-1 44 1 642005 1 2/27/20 1 7 Fe-59 1.29£-04 3.80E-04 1.3 1 E-03 u AP ONS-1 44 1 642005 1 2/27/20 1 7 1-1 3 1 -1.2 1 E-03 2.62E-02 8.54E-0 2 u AP ONS-1 44 1 642005 1 2/27/20 1 7 K-40 I .38E-03 l.62E-03 2.66E-03 u AP ONS-1 44 1 642005 1 2/27/20 1 7 La-1 40 2.67E-03 3.00E-03 l.1 5E-02 u AP ONS-1 44 1 642005 1 2/27/20 1 7 Mn-54 -I .49E-04 1.59£-04 4.38E-04 u AP ONS-1 44 1 642005 I 2/27/20 1 7 Nb-95 2.97E-04 2.84E-04 7.97E-04 u AP ONS-1 44 1 642005 12/27/20 1 7 Ru-I 03 4.03£-05 2.64E-04 8.59E-04 u AP ONS-1 441642005 1 2/27/20 1 7 Ru-1 06 4.19E-04 I .07E-03 3.15£-03 u AP ONS-1 44 1 642005 1 2/27/20 1 7 Sb-124 -2.06E-04 3.99E-04 I .20E-03 u AP ONS-1 441642005 1 2/27/20 1 7 Sb-125 -l.65E-06 2.52E-04 7.29£-04 u AP ONS-1 44 1 642005 1 2/27/20 1 7 Se-75 5.1 5E-05 I .64E-04 5.54E-04 u AP ONS-1 44 1 642005 1 2/27/20 17 T h-228 3.48E-04 2.73E-04 5.90E-04 u AP ONS-1 44 1 642005 1 2/27/20 1 7 Z n-65 1.47E-04 I .99E-04 7.1 5E-04 u AP ONS-1 441642005 1 2/27/20 1 7 Zr-95 -8.88E-05 3.20E-04 1.05£-03 u AP ONS-2 44 1 642006 1 2/27/20 1 7 Ac-228 -8.34E-05 4.94E-04 l.63E-03 u AP ONS-2 44 1 642006 1 2/27/20 1 7 Ag-108111 4.87E-05 7.65E-05 2.7 1 E-04 u AP ONS-2 441642006 1 2/27/20 1 7 Ag-I !Om 8.75E-05 l.39E-04 5.1 3E-04 u AP ONS-2 441642006 1 2/27/20 1 7 Ba-1 40 1.53£-02 1.3 1 E-02 4.72E-02 u AP ONS-2 441642006 12/27/20 1 7 Be-7 1.08£-0 1 8.7 1 E-03 5.IOE-03 AP ONS-2 441642006 12/27/20 1 7 Ce-141 I .54E-04 3.77E-04 l.28E-03 u AP ONS-2 44 1 642006 1 2/27/20 1 7 Ce-144 -7.05E-05 4.07E-04 l.33E-03 u AP ONS-2 44 1 642006 1 2/27/20 1 7 Co-57 3.32E-05 4.3 5E-05 l.54E-04 u AP ONS-2 44 1 642006 1 2/27/20 1 7 Co-58 -I .36E-04 2.00E-04 6.1 2E-04 u AP ONS-2 44 1 642006 1 2/27/20 1 7 Co-60 4.06E-05 I .36E-04 4.66E-04 u AP ONS-2 44 1 642006 1 2/27/20 1 7 C r-5 1 9.92E-04 3.26E-03 1.1 5£-0 2 u AP ONS-2 44 1 642006 1 2/27/20 1 7 Cs-1 34 l.87E-04 I .08E-04 4. I 7E-04 u AP ONS-2 44 1 642006 1 2/27/20 1 7 Cs-1 37 -1. I l E-05 I .23E-04 3.94E-04 u AP ONS-2 44 1 642006 12/27/20 1 7 Fe-59 -1.23E-05 5.65E-04 l.86E-03 u AP ONS-2 44 1 642006 1 2/2 7/20 1 7 1-1 31 4.34E-02 2.64E-02 9.64E-02 u AP ONS-2 44 1 642006 1 2/27/20 1 7 K-40 9.77E-04 l.73E-03 6.28E-03 u AP ONS-2 44 1 642006 1 2/27/20 1 7 La-140 7.1 7E-03 5.3 8E-03 2.1 7E-02 u AP ONS-2 44 1 642006 1 2/27/20 1 7 Mn-54 4.26E-05 7.47E-05 2.80E-04 u AP ONS-2 44 1 642006 12/27/2 0 1 7 Nb-95 -8.1 8E-05 I .87E-04 5.44E-04 u AP ONS-2 441642006 1 2/27/20 17 R u-1 03 3.2 1 E-04 2.72E-04 9.86E-04 u AP ONS-2 44 1 642006 1 2/27/20 1 7 Ru-1 06 l.1 9E-03 I .03E-03 3.7 1 E-03 u AP ONS-2 44 1 642006 1 2/27/20 1 7 Sb-1 24 -7.73E-04 6.97E-04 J.70E-03 u AP ONS-2 44 1 642006 1 2/27/20 1 7 Sb-1 25 2.03E-05 2.33E-04 7.89E-04 u AP ONS-2 44 1 642006 1 2/27/20 1 7 Se-75 -1.35E-04 I .68E-04 4.80E-04 u AP ONS-2 44 1 642006 1 2/27/20 1 7 Th-228 2.24E-04 l.53E-04 4.70E-04 u AP ONS-2 44 1 642006 12/27/20 1 7 Zn-65 -5.79E-04 3.05E-04 4.54E-04 u AP ONS-2 44 1 642006 1 2/27/20 1 7 Zr-95 -2.20E-04 2.87E-04 7.4 1 E-04 u AP ONS-3 44 1 642007 1 2/27/20 1 7 Ac-228 5.96E-04 5.0 I E-04 1.8 1 E-03 u AP ONS-3 44 1 642007 1 2/27/20 1 7 Ag-108111 3.38E-05 6.54E-05 2.27E-04 u AP ONS-3 441642007 1 2/27/2017 Ag-1 1 0111 l.34E-04 l.76E-04 6.3 3E-04 u AP ONS-3 44 1 642007 1 2/27/20 1 7 Ba-1 40 -1.23E-03 9.2 1 E-03 2.93E-02 u AP ONS-3 441642007 1 2/27/20 1 7 Be-7 l.28E-OI 9.43E-03 4.6 9E-03 AP ONS-3 44 1 642007 1 2/27/20 1 7 Ce-1 4 1 l.2 I E-03 8.88E-04 l.25E-03 u AP ONS-3 44 1 642007 1 2/27/2 0 1 7 Ce-1 44 7.0 9E-04 4.4 1 E-04 l.47E-03 u AP ONS-3 44 1 642007 1 2/27/20 1 7 Co-57 4.1 7E-05 5.03E-05 l.70E-04 u AP ONS-3 44 1 642007 1 2/27/20 1 7 Co-58 8.30E-05 l.97E-04 6.90E-04 u D-3 1 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE E ND CONC ST D.D EV. MD C FLAGS TYPE STATION LSN DAT E NUCLID E (p Ci/m3) (pCi/m3) (pCi/m 3) AP ONS-3 44 1 642007 1 2/27/20 1 7 Co-60 1. I 3E-05 I .36E-04 4.45E-04 u AP ONS-3 44 1 642007 1 2/27/20 17 C r-5 1 4.66 E-0 3 3.40E-0 3 l.2 0 E-02 u AP ONS-3 44 1 642007 12/27/20 1 7 Cs-1 34 -1.72 E-04 l.28E-04 3.3 5 E-04 u AP ONS-3 44 1 642007 12/27/20 1 7 Cs-137 2.43 E-05 l.06E-04 3.1 3E-04 u AP ONS-3 441642007 1 2/27/20 1 7 Fe-59 5.88E-0 4 5.69E-04 2.IOE-03 u AP ONS-3 44 1 642007 1 2/27/2017 1-1 3 1 -l.4 3E-02 2.63E-02 8.35E-02 u AP ONS-3 44 1 642007 1 2/27/2017 K-40 l.27E-03 l.9 7E-03 5.07E-03 u AP ONS-3 44 1 642007 12/27/2017 La-1 40 -4.14E-03 4.85E-0 3 l.28E-0 2 u AP ONS-3 441642007 12/27/2017 Mn-54 5.98 E-05 l.0 9E-04 3.9 0 E-04 u AP ONS-3 44 1 642007 1 2/27/2017 N b-95 -1.0 4E-04 1.70E-0 4 5.20E-04 u AP ONS-3 44 1 642007 1 2/27/2017 R u-10 3 8.04 E-0 6 2.6 1 E-0 4 8.57E-04 u AP ONS-3 441642007 12/27/20 1 7 Ru-1 06 4.29 E-04 l .07E-03 3.25E-03 u AP ONS-3 44 1 642007 1 2/27/20 1 7 Sb-1 2 4 2.S I E-04 4.19 E-04 l .60E-03 u AP ONS-3 44 1 642007 1 2/27/20 1 7 Sb-1 25 -2.3 1 E-04 2.2 1 E-04 6.26E-04 u AP ONS-3 44 1 642007 1 2/27/2017 Se-75 -8.60E-05 l.54E-04 5.04E-04 u AP ONS-3 44 1 642007 12/27/20 17 T h-228 2.34E-04 2.30E-04 5.74 E-04 u AP ONS-3 44 1 642007 1 2/27/2017 Z n-65 5.37E-04 2.79E-04 l.08 E-03 u AP ONS-3 441642007 1 2/27/20 1 7 Z r-95 2.40 E-04 3.26E-04 1.1 9E-03 u AP ONS-4 44 1 642008 1 2/27/2017 Ac-228 -1.51 E-04 2.7 8E-04 8.57E-04 u AP ONS-4 44 1 642008 1 2/27/2017 Ag-1 08m -8.52 E-05 5.48E-05 l.29E-04 u AP ONS-4 44 1 642008 1 2/2 7/20 1 7 Ag-l l Om -3.99E-05 9.08E-05 2.72E-04 u AP ONS-4 441642008 12/27/2017 Ba-1 40 -5.20E-0 3 8.29E-0 3 2.27E-02 u AP ONS-4 44 1 642008 1 2/27/2017 Be-7 9.86E-0 2 6.43E-03 3.78E-03 AP ONS-4 44 1 642008 1 2/27/20 1 7 Ce-1 41 -5.1 8E-04 3.08E-04 8.3 1 E-04 u AP ONS-4 44 1 642008 1 2/27/20 17 Ce-1 44 l.72E-04 2.98E-04 9.77E-04 u AP ONS-4 44 1 642008 1 2/27/2017 Co-57 -2.68E-05 4.0 1 E-05 1.24E-04 u AP ONS-4 44 1 642008 1 2/27/20 1 7 Co-58 -9.58 E-05 l.1 4E-04 3.25 E-04 u AP ONS-4 44 1 642008 12/27/20 1 7 Co-60 6.36E-05 6.8 0 E-05 2.45E-04 u AP ONS-4 44 1 642008 1 2/27/2017 C r-51 -I .22E-03 l.9 9E-0 3 6.48E-03 u AP ONS-4 44 1 642008 1 2/27/2017 Cs-134 l.7 8E-05 6.38E-0 5 2.lO E-04 u AP ONS-4 44 1 642008 12/27/2017 Cs-1 37 6.84E-05 5.77E-05 2.00 E-0 4 u AP ONS-4 44 1 642008 1 2/27/2017 Fe-59 9.81E-05 3.29E-04 1.1 4E-03 u AP ONS-4 44 1 642008 1 2/27/20 17 1-1 3 1 6.9 5 E-03 l.66E-02 5.6 9E-02 u AP ONS-4 44 1 642008 1 2/27/2017 K-40 2.91 E-03 l.1 8E-03 l.36E-03 UI AP ONS-4 44 1 642008 12/27/2017 La-1 40 -1.72E-03 2.5 6E-0 3 7.30E-03 u AP ONS-4 44 1 642008 12/27/20 1 7 Mn-54 l.0 5E-05 6.24E-05 2.03E-0 4 u AP ONS-4 44 1 642008 1 2/27/20 17 N b-95 l.73E-05 l.36E-04 4.12 E-04 u AP ONS-4 44 1 642008 1 2/27/2 017 R u-I 03 -6.78E-05 1.47 E-04 4.66E-04 u AP ONS-4 441642008 1 2/27/20 17 R u-1 06 -9. I OE-05 6.06E-04 l.96 E-03 u AP ONS-4 441642008 12/27/20 17 S b-1 24 3.30E-04 3.2 8E-04 I .1 9E-03 u AP ONS-4 44 1 642008 1 2/27/20 1 7 Sb-1 25 -2.61E-04 l.60E-0 4 4.36E-04 u AP ONS-4 44 1 642008 1 2/27/20 1 7 Se-75 -5.66E-05 9.84E-05 3.27E-04 u AP ONS-4 44 1 642008 1 2/27/20 17 T h-228 l.08E-04 l.50E-04 2.82E-04 u AP ONS-4 44 1 642008 1 2/27/20 17 Z n-65 -2.39 E-04 l.83E-04 4.84E-04 u AP ONS-4 44 1 642008 1 2/27/20 1 7 Zr-95 3.41 E-04 2.25E-04 7.70 E-04 u AP ONS-5 441642009 1 2/27/20 1 7 Ac-228 4.03 E-04 4.40E-04 I .15 E-03 u AP ONS-5 441642009 1 2/27/20 1 7 Ag-1 08m 2.53 E-05 5.03E-05 I .72E-04 u AP ONS-5 44 1 642009 1 2/27/20 1 7 A g-l l Om -7.78E-05 l.06E-04 3.32 E-04 u AP ONS-5 44 1 642009 12/27/20 1 7 Ba-140 2.36E-05 7.76 E-0 3 2.56E-02 u AP ONS-5 44 1 642009 12/27/20 1 7 Be-7 l.0 6E-O l 6.63E-03 3.78E-03 D-32 Don a l d C. Cook N uc lear Pl a nt Annual Radiological Environmental Operating Report 2017 SAMPLE E ND CONC STD.DEV. MDC F LAGS TYP E STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m 3) AP ONS-5 44 1 642009 1 2/27/20 17 Ce-1 4 1 -7.43 E-04 3.84E-04 9.37£-04 u AP ONS-5 44 1 642009 12/27/20 1 7 Ce-1 44 1.25£-04 3.21£-04 1.06£-03 u AP ONS-5 44 1 642009 1 2/27/20 1 7 Co-57 -3.78£-05 4.29£-05 l.3 I E-04 u AP ONS-5 44 1 642009 1 2/27/20 17 Co-58 -1.05£-04 1.35£-0 4 3.89E-04 u AP ONS-5 441642009 12/27/2 017 Co-60 -2.58E-06 8. I I E-05 2.6 6£-04 u AP ONS-5 44 1 642009 12/27/20 1 7 C r-5 1 3.15£-0 4 2.25£-0 3 7.72£-0 3 u AP ONS-5 44 1 642009 12/27/20 1 7 Cs-1 34 9.94E-05 6.99£-05 2.46E-04 u AP ONS-5 44 1 642009 12/27/20 1 7 Cs-137 -4.41£-05 6.52£-05 1.95£-04 u AP ONS-5 44 1 642009 1 2/27/20 17 Fe-5 9 -1.32£-04 2.77£-04 8.54E-04 u AP ONS-5 44 1 642009 12/27/20 1 7 1-131 -2.65£-02 1.96£-02 5.8 0E-02 u AP ONS-5 44 1 642009 1 2/27/20 17 K-40 -1.48£-03 1.31£-03 4.02£-03 u AP ONS-5 441642009 1 2/27/20 17 La-1 40 -4.95£-0 3 3.22£-03 6.5 1£-03 u AP ONS-5 44 1 642009 1 2/27/2017 Mn-54 6.07£-05 8.27£-05 2.77£-04 u AP ONS-5 441642009 12/27/20 17 Nb-95 -1.1 2E-0 5 1.30£-04 4.1 3£-04 u AP ONS-5 441642009 1 2/27/20 1 7 Ru-1 03 -8.9 1£-05 1.63£-04 5.1 1 E-0 4 u AP ONS-5 441642009 1 2/27/2017 R u-1 06 7.06£-04 6.5 5£-04 2.08E-03 u AP ONS-5 44 1 642009 12/27/20 17 Sb-1 24 1.04£-04 2.57£-04 8.97£-04 u AP ONS-5 44 1 642009 12/27/2017 Sb-1 25 5.95£-05 1.6 1£-04 5.50E-04 u AP ONS-5 44 1 642009 1 2/27/20 17 Se-75 1.22£-0 4 I .1 2E-04 3.60£-04 u AP ONS-5 44 1 642009 1 2/27/20 1 7 T h-228 8.63£-05 2.02£-04 3.92E-04 u AP ONS-5 44 1 642009 1 2/27/2017 Z n-65 1.55E-04 I .83E-04 6.49E-04 u AP ONS-5 44 1 642009 1 2/27/20 1 7 Zr-95 I .03E-04 2.21E-0 4 7.38E-04 u AP ONS-6 44 1 6420 1 0 1 2/27/20 1 7 Ac-228 1.46£-04 4.94£-04 1.78£-03 u AP ONS-6 44 1 6420 10 1 2/27/20 1 7 Ag-10 8 m 3.28£-04 1.22E-04 2.94£-04 Ul AP ONS-6 44 1 6420 10 12/27/2017 Ag-I I Orn -2.0 5£-04 J.71E-04 4.lO E-04 u AP ONS-6 441642010 12/27/2017 Ba-14 0 -1.23£-02 9.52 E-0 3 2.36E-02 u AP ONS-6 44 1 6420 1 0 12/27/20 17 Be-7 1.1 6£-0 1 8.57£-0 3 6.1 2£-03 AP ONS-6 441642010 12/27/20 1 7 Ce-141 -5.41E-04 3.86£-04 1.01 E-0 3 u AP ONS-6 44 1 6420 10 12/27/20 17 Ce-144 -9.90£-05 4.61E-04 1.44E-03 u AP ONS-6 44 1 6420 1 0 12/27/20 17 Co-57 -8.06E-05 6.12 E-05 l.66E-04 u AP ONS-6 441642010 12/27/20 17 Co-58 4.42E-05 1.30£-04 4.39£-04 u AP ONS-6 441642010 12/27/20 1 7 Co-60 4.61E-05 l.04 E-04 3.69£-04 u AP ONS-6 441642010 12/27/2017 C r-51 -2.79£-04 3.5 1 E-03 1.1 8£-02 u AP ONS-6 44 1 6420 10 1 2/27/20 1 7 Cs-134 9.57£-05 9.48£-05 3.43£-04 u AP ONS-6 441642010 12/27/2017 Cs-137 4.00E-05 8.73E-05 2.98E-04 u AP ONS-6 44 1 6420 1 0 1 2/27/20 17 Fe-59 I .02E-0 4 6.17£-04 2.11 E-0 3 u AP ONS-6 44 1 6420 1 0 1 2/27/20 17 1-13 1 6.07£-0 2 2.96£-0 2 1.02E-OI u AP ONS-6 441 6420 10 12/27/20 1 7 K-40 1.52 E-03 1.56£-03 6.27£-03 u AP ONS-6 44 1 6420 1 0 12/27/20 1 7 La-1 40 -1.87£-04 4.50E-0 3 I.46E-02 u AP ONS-6 441642010 12/27/20 1 7 Mn-54 -9.52E-06 l.1 4E-0 4 3.57£-04 u AP ONS-6 441642010 12/27/20 17 Nb-95 -l.7 I E-05 1.54£-04 4.83£-04 u AP ONS-6 441642010 1 2/27/2017 Ru-10 3 4.05£-04 2.61E-0 4 9.32E-04 u AP ONS-6 44 1 6420 1 0 12/27/20 1 7 Ru-10 6 -l.57E-03 9.92E-0 4 2.32E-03 u AP ONS-6 44 1 6420 10 12/27/20 1 7 Sb-1 24 -2.56E-04 5.78 E-04 1.70E-03 u AP ONS-6 441642010 12/27/20 17 Sb-1 25 -8.44£-05 2.2 1 E-04 7.0 4£-04 u AP ONS-6 44 1 6420 1 0 1 2/27/20 17 Se-75 1.5 8£-04 1.60£-04 5.60£-04 u AP ONS-6 44 1 6420 10 12/27/20 1 7 Th-228 6.37E-05 l.83E-0 4 5.06£-04 u AP ONS-6 441642010 1 2/27/20 1 7 Zn-65 -1.32E-04 l.82E-04 5.06E-04 u AP ONS-6 44 1 642010 1 2/27/20 1 7 Z r-95 4.57£-05 2.60E-04 8.58 E-0 4 u 0-33 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE E ND CONC ST D.D EV. MD C FLAGS TYPE STATI ON LS N D ATE NUCL ID E (pCi/m3) (pCi/m 3) (pC i/m 3) CF NBF 4 1 37920 1 2 1/4/2 01 7 1-1 3 1 -I .32E-03 4.53E-03 1.43£-02 u CF SBN 4 1 3792013 1/4/2 01 7 1-1 3 1 2.7 3£-03 4. 1 9E-0 3 1.5 7£-02 u CF DOW 4137920 1 4 1/4/20 1 7 1-1 3 1 -2.69E-04 3.42E-03 1.1 2£-02 u CF COL 4 1 37920 1 5 1/4/20 1 7 1-1 3 1 -2.90£-03 3.88E-03 l.1 2E-02 u CF ONS-1 4 1 37920 1 6 1/4/20 1 7 1-1 3 1 -5.1 6E-03 3.84£-0 3 7.4 7 E-03 u CF ONS-2 4 1 37920 1 7 1/4/20 1 7 1-1 3 1 I .85E-03 4.96E-03 1.72£-02 u CF ONS-3 4137920 1 8 1/4/20 1 7 1-1 3 1 -7.74E-04 3.26£-03 1.02£-02 u CF ONS-4 4137920 1 9 1/4/20 1 7 1-1 3 1 4.23E-03 3.87£-03 l.52E-02 u CF ONS-5 413792020 1/4/20 1 7 1-1 3 1 l.92E-0 5 3.67£-03 1.2 1 E-02 u CF ONS-6 41379202 1 1/4/20 1 7 1-1 3 1 2.83E-03 3.68E-03 l.37E-02 u CF NBF 4 1 42770 1 2 1/11/20 1 7 1-1 31 -8.85E-03 6.55£-03 1.5 8E-02 u CF SBN 4 1 42770 1 3 1/1 1/20 1 7 1-1 3 1 -2.39E-03 5.76£-03 1.82E-02 u CF DOW 4 1 42770 1 4 1/1 1/20 1 7 1-1 3 1 5.60E-04 4.86£-03 l.65E-02 u CF COL 4 1 42770 1 5 1/11/20 1 7 1-1 3 1 -4.97E-03 2.62E-03 4.0 4£-03 u CF ONS-1 4 1 42770 1 6 1/1 1/20 1 7 1-1 3 1 -6.64E-03 5.68E-03 l.3 7 E-02 u CF ONS-2 4142770 1 7 1/1 1/20 1 7 1-1 3 1 9.97E-05 5.78E-03 1.92£-02 u CF ONS-3 4 1 42770 1 8 1/1 1/20 1 7 1-13 1 -2.30£-03 2.02E-03 5. 1 9E-03 u CF ONS-4 4 1 42770 1 9 1/1 1/20 1 7 1-1 3 1 9.53E-03 6.80£-03 2.63E-02 u CF ONS-5 414277020 1/11/20 1 7 1-131 l.36E-03 4.20E-03 1.48£-02 u CF ONS-6 414277021 1/1 1/20 1 7 1-1 31 -8.09E-05 3.38E-03 1.1 5£-02 u CF NBF 4 1 46780 1 2 1/1 8/20 1 7 1-1 3 1 -4.48E-03 7.84£-03 2.04E-02 u CF SBN 4 1 46780 1 3 1/1 8/20 1 7 1-1 3 1 9.03E-03 5.58E-03 2.ll E-02 u CF DOW 4 1 46780 1 4 1/1 8/20 1 7 1-1 31 -3.28E-03 5.00E-03 1.44£-02 u CF COL 4 1 46780 1 5 1/1 8/20 1 7 1-1 31 -3.92E-03 4.20E-03 l.0 8E-02 u CF ONS-1 4 1 46780 1 6 1/1 8/2 01 7 1-1 31 -9.87E-04 4.33E-0 3 l .3 5 E-02 u CF ONS-2 4146780 1 7 1/18/20 1 7 1-1 3 1 3.5 1 E-03 3.44E-03 1.37£-02 u CF ONS-3 4 1 46780 1 8 1/1 8/20 1 7 1-13 1 9. I 7E-04 4.1 I E-03 l.35E-02 u CF ONS-4 4 1 46780 1 9 1/18/20 1 7 1-1 3 1 -3.75E-03 6.43E-03 l.94E-02 u CF ONS-5 414678020 1/1 8/20 1 7 1-1 31 -2.18E-04 3.66E-03 l.24E-02 u CF ONS-6 4 1 4678021 1/18/20 1 7 1-1 31 -4.92E-03 5.1 7E-03 l.36E-02 u CF NBF 4 1 5 1 9 1 0 1 2 1/25/20 1 7 1-1 3 1 8.20E-03 5.58E-03 2.1 2E-02 u CF SBN 4 1 519 1 0 1 3 l/25/20 1 7 1-13 1 -4.30E-03 6.13E-03 l .42E-02 u CF DOW 4 1 5 1 9 1 0 1 4 1/2 5/20 1 7 1-1 3 1 5.07£-04 4.8 1 E-03 1.60£-02 u CF COL 4 1 5 1 9 1 0 1 5 1/2 5/20 1 7 1-1 3 1 -1. I 7E-03 4.6 1 E-03 1.47£-02 u CF ONS-1 4 1 5 1 9 1 0 1 6 1/25/20 1 7 1-1 3 1 -3.70E-03 4. 1 3£-03 l.1 9E-02 u CF ONS-2 4 1 5 1 9 1 0 1 7 1/25/20 1 7 1-1 3 1 5.06E-03 2.08£-03 7.67E-03 u CF ONS-3 4 1 5 1 9 1 0 1 8 1/2 5/20 1 7 1-1 3 1 -7.65E-03 4.57E-03 I .03E-02 u CF ONS-4 4 1 5 1 9 1 0 1 9 1/25/20 1 7 1-1 3 1 l.62E-03 3.32E-03 l.1 3E-02 u CF ONS-5 4 1 5 1 9 1 020 1/25/20 1 7 1-13 1 5.70E-03 3.47£-03 l.3 l E-02 u CF ONS-6 4 1 5 1 9 1 02 1 1/2 5/20 1 7 1-1 31 4.38E-03 3.95E-03 1.42£-02 u CF NBF 4 1 56940 1 2 2/1/20 1 7 1-1 3 1 6.68E-03 5.06E-03 l.96E-02 u CF SBN 4156940 1 3 2/l/20 1 7 1-131 -8.61E-03 5.66E-03 l.02E-02 u CF DOW 415694014 2/1/20 1 7 1-1 31 -l.40E-03 3.00E-03 8.66£-03 u CF COL 4 1 56940 1 5 2/1/20 1 7 1-1 3 1 9.6 1 E-04 4.3 1 E-03 l.42E-02 u CF ONS-1 4156940 1 6 2/1/20 1 7 1-1 31 6. 1 9E-03 3.95E-03 1.7 1 E-02 u CF ONS-2 4 1 56940 1 7 2/1/20 1 7 1-1 3 1 6.53E-03 4.49E-03 l.79E-02 u CF ONS-3 4 1 56940 1 8 2/1/2 01 7 1-1 3 1 l.23E-03 7.59E-03 2.64E-02 u CF ONS-4 4 1 56940 1 9 2/1/2 01 7 1-1 3 1 1.26E-0 3 3.4 4E-0 3 I .2 4 E-02 u CF ONS-5 4 1 5694020 2/1/20 1 7 1-13 1 8.29E-03 6.84E-03 2.57E-02 u CF ONS-6 4 1 569402 1 2/1/20 1 7 1-1 3 1 2.47E-04 2.7 1 E-03 7.90E-03 u D-34 Donald C. Cook Nuclear Plant Annual Rad i ological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3) CF NBF 4 1 6159012 2/8/20 1 7 1-13 1 2.3 0£-03 5.66£-03 2.00E-02 u CF SBN 416159013 2/8/20 1 7 1-131 -7.04£-03 4.1 2£-03 7.43£-0 3 u CF DOW 416159014 2/8/20 17 1-1 3 1 8.69£-03 5.99£-03 2.23£-0 2 u CF COL 41 61590 15 2/8/20 1 7 1-1 3 1 7.23£-03 4.09£-03 1.74£-0 2 u CF ONS-1 416159016 2/8/20 1 7 1-13 1 -3.94£-03 5.42£-0 3 1.50£-0 2 u CF ONS-2 4 1 61590 17 2/8/20 1 7 1-131 -3.8 0£-03 4.20£-03 1.08£-02 u CF ONS-3 416159018 2/8/20 1 7 1-1 3 1 3.73£-04 5.17£-03 1.75£-0 2 u CF ONS-4 4 1 6 159019 2/8/20 17 1-131 -7.68£-04 3.94E-03 1.24£-0 2 u CF ONS-5 416159020 2/8/20 1 7 1-131 -3.00E-03 4.60£-03 1.40£-0 2 u CF ONS-6 4 1 6 15 902 1 2/8/20 1 7 1-1 3 1 5.87E-03 4.50E-03 1.80£-0 2 u CF NBF 4 1 6948012 2/15/2017 1-1 3 1 4.94£-03 4.1 IE-03 1.66£-02 u CF SBN 416948013 2/15/2017 1-131 -3.23£-03 2.77£-03 6.62E-0 3 u CF DOW 4 1 69480 1 4 2/15/20 1 7 1-1 3 1 -1.84£-03 3.27E-03 8.89£-03 u CF COL 4 1 69480 1 5 2/15/20 1 7 1-131 9.1 IE-04 4.84£-03 1.65£-02 u CF ONS-1 4 1 69480 1 6 2/15/20 17 1-1 3 1 -7. IO E-0 4 3.92E-03 1.16£-02 u CF ONS-2 4 1 69480 1 7 2/15/20 17 1-131 -1.53£-03 2.96E-03 9.17£-03 u CF ONS-3 4 1 69480 18 2/1 5/2017 1-1 3 1 2.05£-03 4.69£-03 1.71£-02 u CF ONS-4 4 1 69480 1 9 2/15/20 17 1-1 3 1 -1.9 3£-03 3.72 E-03 l.lO E-02 u CF ONS-5 4 1 6948020 2/15/20 1 7 1-131 1.89£-03 3.88£-03 1.41 E-0 2 u CF ONS-6 4 1 694802 1 2/15/20 1 7 1-1 3 1 l.22E-02 7.70£-03 3.IOE-02 u CF NBF 4 17 3060 12 2/22/20 17 1-1 3 1 -1.1 6£-03 5.25£-03 1.6 9£-0 2 u CF SBN 4 1 73060 1 3 2/22/20 1 7 1-1 3 1 2.77£-03 7.35E-03 2.52£-02 u CF DOW 4 17 3060 14 2/22/20 1 7 1-131 -5.63£-03 3.04£-03 4.94£-0 3 u CF COL 4 1 73060 1 5 2/22/20 1 7 1-1 3 1 -9.67£-0 4 4.91E-03 1.55£-02 u CF ONS-1 4 17 3060 16 2/22/2017 1-131 1.03£-02 5.84£-03 2.30£-0 2 u CF ONS-2 4 1 73060 17 2/22/20 17 1-1 3 1 -2.02E-04 5.24£-03 1.74£-02 u CF ONS-3 4 1 73060 1 8 2/22/20 17 1-1 3 1 1.0 6£-03 4.77£-03 1.57£-02 u CF ONS-4 4 1 73060 19 2/22/20 17 1-1 31 8.1 4E-04 5.60£-03 1.95£-02 u CF ONS-5 4 1 7306020 2/22/20 17 1-1 3 1 -1.8 1 E-03 4.94£-03 1.54E-0 2 u CF ONS-6 4 1 730602 1 2/22/20 17 1-13 1 -9.66 E-04 3.49E-03 1.12£-02 u CF NBF 4 1 77400 1 2 3/1/20 17 1-1 3 1 1.3 1 E-03 5.56£-03 1.92£-02 u CF SBN 4 1 7740013 3/1/20 17 1-1 3 1 -7.68£-04 4.15£-03 1.37£-0 2 u CF DOW 4 1 77400 14 3/1/20 1 7 1-1 3 1 -1.82£-03 4.70£-03 1.47£-0 2 u CF COL 4 1 77400 1 5 3/1/20 1 7 1-1 3 1 l.56E-03 3.73 E-03 l.33 E-0 2 u CF ONS-1 4 1 77400 1 6 3/1/20 17 1-1 3 1 -7.1 2E-03 4.72E-03 1.0I E-0 2 u CF ONS-2 4 1 77400 17 3/1/20 1 7 1-1 3 1 -6.24£-03 4.30£-03 8.5 1£-03 u CF ONS-3 4 1 77400 1 8 3/1/20 17 1-1 31 -4.45E-03 6.9 1 E-03 1.77£-0 2 u CF ONS-4 4 1 77400 1 9 3/1/20 17 1-131 -2.03 E-03 2.71 E-03 7.60£-03 u CF ONS-5 4 1 7740020 3/1/20 1 7 1-131 5.29£-0 3 6.15£-03 2.24£-02 u CF ONS-6 4 1 774002 1 3/1/20 1 7 1-131 -7.20E-03 3.57£-03 6.22E-03 u CF N B F 4 1 82620 1 2 3/8/20 1 7 1-131 1.95£-03 3.24£-03 1.23£-02 u CF SBN 4 1 82620 13 3/8/20 17 1-1 3 1 4.9 1 E-0 3 3.1 2£-03 1.35£-02 u CF DOW 4 1 82620 14 3/8/20 17 1-13 1 2.73£-03 4.35£-03 l.59 E-02 u CF COL 418 2620 15 3/8/20 1 7 1-1 3 1 -1.0 5E-03 2.35£-03 6.96E-03 u CF ONS-1 418262016 3/8/20 17 1-131 9.98£-04 3.80£-0 3 1.33£-02 u CF ONS-2 4 1 8262017 3/8/20 17 1-1 3 1 3.86£-05 3.71E-03 1.24£-0 2 u CF ONS-3 418 2620 18 3/8/20 1 7 1-131 1. lO E-04 3.4 1£-03 1.14 E-02 u CF ONS-4 4 1 82620 19 3/8/20 1 7 1-1 3 1 5.60£-03 3.40£-03 1.46£-02 u CF ONS-5 4 1 8262020 3/8/20 1 7 l-131 -4.57£-03 4.69£-03 1.23 E-0 2 u CF ONS-6 4 1 826202 1 3/8/20 1 7 1-1 3 1 2.79£-03 1.7 4£-03 7.50£-0 3 u 0-35 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DAT E NUCLID E (pCi/m3) (pC i/m3) (pCi/m 3) CF NBF 4 1 87920 1 2 3/15/2017 1-1 3 1 5.53E-0 4 5.56E-03 l.89E-0 2 u CF SBN 418792013 3/15/2017 1-1 3 1 2.13E-03 3.98E-03 l .40E-02 u CF DOW 4 1 87920 1 4 3/15/2017 1-1 3 1 3.80E-03 7.37E-03 2.70E-02 u CF COL 4 1 87920 1 5 3/15/2017 1-1 3 1 8.82E-03 5.05E-0 3 2.00E-0 2 u CF ONS-1 418792016 3/15/2017 1-1 3 1 5.52E-03 6.38E-0 3 2.35E-02 u CF ONS-2 418792017 3/15/20 1 7 1-131 7.39E-03 6.54E-0 3 2.40 E-02 u CF ONS-3 4187920 1 8 3/15/2017 1-1 3 1 l.74E-03 4.22E-03 I .67E-02 u CF ONS-4 418792019 3/1 5/2017 1-131 -6.56E-03 4.76 E-0 3 8.09E-03 u CF ONS-5 4 1 8792020 3/15/20 1 7 1-131 -4. I l E-03 3.38E-03 7.26E-03 u CF ONS-6 4 1 879202 1 3/15/2017 1-1 3 1 l.7 0E-03 5.15 E-03 l.77 E-02 u CF NBF 4 1 92270 1 2 3/22/2017 1-1 3 1 7.8 7E-03 6.00E-0 3 2.28E-0 2 u CF SBN 4 1 92270 1 3 3/22/2017 1-1 3 1 l.06E-03 7.37E-0 3 2.53 E-02 u CF DOW 4 1 92270 1 4 3/22/2017 1-1 3 1 -2.75E-03 6.34E-03 l.92 E-0 2 u CF CO L 4 1 92270 1 5 3/22/20 1 7 1-1 3 1 -3.86E-03 4.39E-0 3 I .29 E-02 u CF ONS-1 4 1 92270 1 6 3/22/20 1 7 1-1 3 1 -4.23 E-03 5.95E-03 l.37 E-0 2 u CF ONS-2 4 1 92270 17 3/22/20 1 7 1-1 3 1 -1.41 E-03 4.22E-0 3 I .32E-02 u CF ONS-3 4 1 9227018 3/22/2017 1-1 3 1 -3.04E-04 4.99E-03 1.6 6E-02 u CF ONS-4 4 1 92270 1 9 3/22/2017 1-1 3 1 -1.55 E-03 3.40E-03 9.67E-03 u CF ONS-5 4 1 9227020 3/22/20 1 7 1-1 3 1 6.35E-03 7.05E-03 2.60£-02 u CF ONS-6 4 1 922702 1 3/22/20 1 7 1-1 3 1 7.47 E-03 5.47£-03 2.1 l E-02 u CF NBF 419655012 3/29/20 1 7 1-1 31 I .35E-0 2 5.11 E-03 1.29£-02 UI CF SBN 4 1 965 5013 3/29/2017 1-1 3 1 1.0 2£-0 3 4.06£-03 1.47£-02 u CF DOW 4 1 96550 1 4 3/29/20 1 7 1-1 3 1 -5.66£-03 3.64£-03 6.2 I E-03 u CF COL 4 1 96550 1 5 3/29/2017 1-1 3 1 -4.60£-04 4.1 9E-0 3 l.37 E-02 u CF ONS-1 419655016 3/29/20 1 7 1-1 3 1 -9.66£-04 3.58£-03 1.0 6£-02 u CF ONS-2 4 1 96550 17 3/29/2017 1-1 3 1 -l.13 E-03 3.22£-0 3 l.OI E-02 u CF ONS-3 4 1 96550 1 8 3/29/2017 1-1 3 1 -1.65E-0 3 5.24£-03 1.68£-02 u CF ONS-4 4 1 96550 1 9 3/29/2017 1-1 3 1 -2.53E-03 2.71E-03 5.58E-0 3 u CF ONS-5 419655020 3/29/2017 1-1 3 1 7.1 7E-04 6.30£-03 2.1 6E-02 u CF ONS-6 4 1 9655021 3/29/20 17 1-1 3 1 -2.1 8£-03 3.05£-03 8.41 E-03 u CF NBF 4202340 1 2 4/5/2017 1-1 3 1 -I .3 7E-03 2.50E-03 7.53E-03 u CF SBN 4202340 1 3 4/5/20 1 7 1-1 3 1 -2.63E-0 3 5.73 E-0 3 l.82 E-02 u CF DOW 4202340 1 4 4/5/2017 1-1 31 2.64 E-03 3.23£-0 3 1.1 9E-02 u CF COL 4202340 1 5 4/5/2017 1-1 3 1 4.65E-03 3.50 E-03 1.3 I E-02 u CF ONS-1 4202340 1 6 4/5/2017 1-1 3 1 3.97E-03 3.28E-03 1.24£-02 u CF ONS-2 420234017 4/5/2017 1-1 3 1 5.1 2£-04 3.44E-0 3 1.1 6E-02 u CF ONS-3 4202340 1 8 4/5/20 1 7 1-1 3 1 -2.63£-04 2.88£-0 3 9.38£-03 u CF ONS-4 420234019 4/5/20 1 7 1-1 3 1 -1.27£-03 3.40E-0 3 I .08 E-02 u CF ONS-5 420234020 4/5/20 1 7 1-1 3 1 2.57 E-03 4.50£-03 1.57 E-02 u CF ONS-6 420234021 4/5/2 017 1-1 3 1 -5. l OE-0 3 3.78£-03 9.14£-03 u CF NBF 420768012 4/1 2/20 1 7 1-1 3 1 3.86£-04 5.1 4E-03 1.77£-02 u CF SBN 4207680 1 3 4/12/2017 1-1 3 1 -5.32E-0 3 5.62E-03 l.23E-02 u CF DOW 4207680 1 4 4/12/2017 1-1 3 1 4.04E-03 3.88E-03 1.5 6E-02 u CF COL 420768015 4/12/2017 1-1 3 1 -2.08E-03 4.49E-03 1.34E-02 u CF ONS-1 420768016 4/12/2 017 1-131 3.02E-03 2.52E-0 3 1.13 E-02 u CF ONS-2 420768017 4/12/20 1 7 1-1 3 1 4.93 E-0 4 4.75E-03 l.6 1 E-02 u CF ONS-3 420768018 4/12/20 1 7 1-1 3 1 3.99 E-03 4.58E-03 l.76 E-0 2 u CF ONS-4 420768019 4/12/20 1 7 1-13 1 -2.07E-03 5.1 6£-03 l.58E-02 u CF ONS-5 420768020 4/12/20 1 7 1-1 3 1 2.84£-03 3.90£-03 1.47 E-02 u CF ONS-6 420768021 4/12/20 1 7 1-1 3 1 -6.35E-03 6.43E-03 I.47 E-02 u D-36 Don a ld C. Cook Nuclea r P l an t Annual Radiolog i cal Envi r onmental Operating Report 2017 SAMPLE END CONC ST D.DE V. MDC FLAGS TYPE STATIO N LSN DATE NUCL ID E (pCi/m 3) (pCi/m3) (pCi/m 3) CF NBF 42 1 2450 1 2 4/19/20 1 7 1-13 1 -6.08£-03 4.79£-03 9.67£-03 u CF SBN 421245013 4/19/20 1 7 1-1 3 1 5.2 1 E-04 5.43E-03 1.84E-02 u CF DOW 42 1 2450 1 4 4/1 9/20 1 7 1-1 3 1 2.82£-03 4.87£-03 1.70£-02 u CF COL 42 1 245015 4/19/20 1 7 1-1 3 1 -2.53£-03 4.92£-03 1.50E-02 u CF ONS-1 42 1 2450 1 6 4/19/20 1 7 1-1 3 1 1.94£-03 4.05 E-03 1.47E-02 u CF ONS-2 42 1 245017 4/1 9/20 1 7 1-1 3 1 1.80£-03 4.83£-03 1.67£-02 u CF ONS-3 42 1 245018 4/19/20 1 7 1-1 3 1 -6.90£-03 9.58 E-03 2.84£-02 u CF ONS-4 42 1 2450 1 9 4/19/20 1 7 1-1 3 1 5.1 9E-03 4.1 l E-03 1.64£-02 u CF ONS-5 42 1 245020 4/19/20 1 7 1-13 1 -4.23E-03 6.03£-03 1.78E-02 u CF ONS-6 42 1 24502 1 4/1 9/20 1 7 1-1 3 1 6.4 7£-03 4.70£-03 1.8 L E-02 u CF NBF 42 1 995012 4/26/20 1 7 1-13 1 -7.76£-03 4.47£-03 9.60£-0 3 u CF SBN 42 1 9950 13 4/26/20 1 7 1-13 1 1.8 1E-03 1.82£-03 8.26£-0 3 u CF DOW 42 1 9950 14 4/26/20 1 7 1-13 1 5.29£-03 3.1 4£-03 1.35£-02 u CF COL 42 1 9950 15 4/26/20 1 7 1-1 3 1 4.9 1£-03 4.1 6£-03 1.62£-0 2 u CF ONS-1 42 1 9950 1 6 4/26/20 1 7 1-1 3 1 1.1 5£-02 5.69£-03 2.33£-02 u CF ONS-2 421995017 4/26/20 1 7 1-1 3 1 -7.42£-0 5 3.5 1 E-03 1.1 9E-0 2 u CF ONS-3 42 1 9950 18 4/26/20 1 7 1-13 1 -5.13£-03 3.93£-03 8.57£-03 u CF ONS-4 42 1 9950 1 9 4/26/20 17 1-1 3 1 -7.78£-03 6.44£-03 1.4 1 E-02 u CF ONS-5 421995020 4/26/20 1 7 1-1 3 1 -3. IO E-03 5.49£-03 1.65£-02 u CF ONS-6 42 1 99502 1 4/26/20 1 7 1-1 31 -2.92£-03 5.62£-03 1.66E-02 u CF NBF 4224660 1 2 5/3/20 1 7 1-1 31 -4.36£-03 4.27£-03 1.09£-02 u CF SBN 4224660 1 3 5/3/20 1 7 1-1 3 1 -5.00E-03 5.33£-03 1.4 1£-02 u CF DOW 4224660 1 4 5/3/20 1 7 1-1 3 1 -4.4 0£-04 3.43£-03 1.02£-02 u CF COL 4224660 1 5 5/3/20 1 7 1-131 -4.5 6£-03 3.8 1£-03 8.40£-03 u CF ONS-1 4 224660 1 6 5/3/20 1 7 1-1 3 I -3.90£-04 5.1 9E-03 1.70E-02 u CF ONS-2 4224660 1 7 5/3/20 1 7 1-1 3 1 2.24E-02 9.20 E-03 3.54£-02 u CF ONS-3 4224660 18 5/3/20 17 1-1 31 -2.21£-03 4.1 7£-03 1.26£-0 2 u CF ONS-4 4224660 1 9 5/3/20 1 7 1-13 1 -2.79£-03 4.1 2E-03 1.1 l E-02 u CF ONS-5 422466020 5/3/20 1 7 1-13 1 8.86£-03 6.60£-03 2.40£-02 u CF ONS-6 42246602 1 5/3/20 1 7 1-13 1 8.83£-04 2.IOE-03 7.38£-0 3 u CF NBF 4230470 1 2 5/10/20 1 7 1-1 3 1 -3.89£-04 3.1 8£-03 1.03E-02 u CF SBN 4230470 1 3 5/10/20 1 7 1-13 1 -5.60£-03 6.04£-03 1.48E-02 u CF DOW 4230470 1 4 5/10/20 17 1-1 3 1 -8.27£-03 4.99£-03 9.7 1£-03 u CF COL 4230470 15 5/1 0/20 1 7 1-13 1 -4.96£-03 6.1 2E-03 1.66E-02 u CF ONS-1 4230470 1 6 5/10/20 1 7 1-1 3 1 3.62£-03 3.94£-03 1.52E-02 u CF ONS-2 4230470 1 7 5/10/20 1 7 1-1 31 1.1 2£-03 2.84£-03 I .OOE-0 2 u CF ONS-3 4230470 1 8 5/10/20 1 7 1-13 1 -4.32£-04 3.52£-03 1.1 5£-02 u CF ONS-4 4230470 19 5/1 0/20 1 7 1-1 3 1 -1.98£-03 5.00E-03 1.57£-0 2 u CF ONS-5 423047020 5/10/20 1 7 1-1 3 1 1.02£-02 5.84£-03 2.20£-02 u CF ONS-6 42304702 1 5/10/20 1 7 1-13 1 -3.75£-03 6.76E-03 2.04£-02 u CF NBF 4235880 1 2 5/1 7/20 17 1-1 3 1 -2.98£-03 4.2 1 E-03 1.1 9E-02 u CF SBN 4235880 1 3 5/17/20 1 7 1-13 1 -1.25£-03 4.08E-03 1.28£-02 u CF DOW 4235880 14 5/1 7/20 1 7 1-1 3 1 6.53E-05 4.9 1£-03 1.64£-0 2 u CF COL 423588015 5/17/20 1 7 1-1 3 1 7.1 4£-03 4.80£-03 1.92E-02 u CF ONS-1 423588016 5/17/20 1 7 1-1 3 1 2.96£-03 4. l 9E-03 1.59£-02 u CF ONS-2 423588017 5/1 7/20 1 7 1-131 -2.7 1£-03 2.23E-03 2.66E-03 u CF ONS-3 4235880 1 8 5/17/20 1 7 1-1 3 1 9.87£-04 4. l l E-03 1.36£-0 2 u CF ONS-4 423588019 5/17/20 1 7 1-131 -2.76£-03 5.9 1£-03 l.9 1 E-02 u CF ONS-5 423588020 5/17/20 1 7 1-1 3 1 4.38£-04 3.39£-03 1.1 6E-02 u CF ONS-6 42358802 1 5/17/20 17 1-1 3 1 -1.05£-02 6.63£-03 1.39£-02 u D-37 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SA MPL E E ND CONC ST D.D E V. MDC FLAGS TYPE STA TIO N LS N D ATE NUCLIDE (pCi/m3) (pCi/m3) (pC i/m 3) CF NBF 424 1 600 1 2 5/24/20 1 7 1-1 3 1 -1.1 2E-02 6.49E-03 l.0 4E-02 u CF SBN 424 1 600 1 3 5/24/20 1 7 1-13 1 I .55E-03 3.4 1 E-03 1.27E-02 u CF DOW 424 1 600 1 4 5/24/20 1 7 1-1 3 1 -1. I 5E-03 4.32E-0 3 I .4 7 E-02 u CF COL 424 1 600 1 5 5/24/20 1 7 1-1 3 1 -3.02E-03 3. IO E-03 5.90E-03 u CF ONS-1 424 1 600 1 6 5/24/20 1 7 1-1 3 1 -1.42E-02 7.44E-03 l.22E-02 u CF ONS-2 424 1 600 17 5/24/20 1 7 1-1 3 1 -4.05E-03 4.2 1 E-03 9.67E-03 u CF ONS-3 424 1 600 1 8 5/24/20 1 7 1-1 3 1 6.70E-03 6.54E-03 2.43E-02 u CF ONS-4 424 1 600 1 9 5/24/20 17 1-1 31 -3.05E-03 3.42E-03 8.44E-03 u CF ONS-5 424 1 60020 5/24/20 1 7 1-1 3 1 2.89E-03 5.1 4E-03 l.85E-02 u CF ONS-6 424 1 6002 1 5/24/20 1 7 1-1 31 l.1 9E-02 6.93E-03 2.63E-02 u CF NBF 4245970 1 2 5/3 1/20 1 7 1-1 31 6.00E-03 4.58E-03 l.84E-02 u CF SBN 4245970 1 3 5/31/20 1 7 1-1 31 2.99E-03 7.1 5E-03 2.49E-02 u CF COL 42459 7 0 1 5 5/3 1/2 01 7 1-1 31 -4.69E-0 4 3.47E-03 I .03E-02 u CF ONS-1 4245970 1 6 5/31/20 1 7 1-1 31 l.86E-03 4.02E-03 I .4 9E-02 u CF ONS-2 4245970 1 7 5/3 1/20 1 7 1-1 31 -I .82E-03 4.04E-03 l.24E-02 u CF ONS-3 4245970 1 8 5/31/20 1 7 1-13 1 1. I OE-02 5. I OE-03 2.05E-02 u CF ONS-4 4245970 1 9 5/3 1/20 1 7 1-131 -2.1 4E-03 4.22E-03 1.22E-02 u CF ONS-5 424597020 5/31/20 1 7 1-1 3 1 6.20E-03 5.72E-03 2.1 5E-02 u CF ONS-6 424597021 5/31/20 1 7 1-131 5.1 2E-05 3.97£-03 l.3 I E-02 u CF NBF 425 11 70 1 2 6/7/20 1 7 1-1 3 1 3.08E-03 5.08E-03 1.84E-02 u CF SBN 425 11 70 1 3 6/7/20 1 7 1-1 31 3.00E-04 4.20E-03 1.42E-02 u CF DOW 425 11 70 1 4 6/7/20 1 7 1-1 3 1 -6.58£-03 3.77E-03 5.06E-03 u CF COL 425 11 70 1 5 6/7/20 1 7 1-1 3 1 -4.1 2E-03 4.69E-03 1.30E-02 u CF ONS-1 425 11 70 1 6 6/7/20 1 7 1-1 3 1 -8.0 I E-03 5.00E-03 6.0 I E-04 u CF ONS-2 425 11 70 1 7 6/7/20 1 7 1-1 3 1 7.92E-03 4.8 0 E-0 3 l.88E-02 u CF ONS-3 425 11 70 1 8 6/7/20 1 7 1-13 1 -6.88£-03 8.26£-03 2.34E-02 u CF ONS-4 425 11 70 1 9 6/7/20 1 7 1-1 31 l.86E-03 3.88£-03 l.4 1 E-02 u CF ONS-5 425 11 7020 6/7/20 1 7 1-131 -2.1 5£-03 2.78E-03 6.62£-03 u CF ONS-6 425 117 02 1 6/7/20 1 7 1-1 3 1 2.24E-03 5.42E-03 1.94£-02 u CF NBF 42564 1 012 6/14/20 1 7 1-1 31 -5.92E-03 4.20E-03 9. I I E-03 u CF SBN 42564 1 0 1 3 6/14/20 1 7 1-1 3 1 -5.20E-03 4.63E-03 1.09£-02 u CF DOW 42564 1 0 1 4 6/14/20 1 7 1-1 31 -5.09E-03 2.95£-03 6.65£-03 u CF COL 42564 1 0 1 5 6/14/20 1 7 1-1 31 1.6 1 E-03 4.65E-03 1.57£-02 u CF ONS-1 42564 1 0 1 6 6/14/20 1 7 1-1 31 -2.35E-03 4.39£-03 1.34£-02 u CF ONS-2 42564 1 0 1 7 6/14/20 1 7 1-1 3 1 2.93£-03 4.35£-03 l.57E-02 u CF ONS-3 42564 1 0 1 8 6/14/20 1 7 1-131 2.0IE-03 3.86E-03 1.4 0E-02 u CF ONS-4 42564 1 0 1 9 6/14/20 1 7 1-1 3 1 -2.38E-03 4.2 1 E-03 l.27E-02 u CF ONS-5 42564 1 020 6/1 4/20 1 7 1-1 31 I .34E-0 3 4.00 E-03 1.4 I E-02 u CF ONS-6 42564 1 02 1 6/14/20 1 7 1-1 3 1 -3.00E-03 3.1 2E-03 7.1 8£-03 u CF NBF 4262450 1 2 6/2 1/20 1 7 1-1 3 1 -8.35£-04 4.0 5£-03 l.29E-02 u CF SBN 426245013 6/2 1/20 1 7 1-1 3 1 9.27E-03 7.65£-03 2.79E-02 u CF DOW 4262450 1 4 6/2 1/20 1 7 1-1 3 1 6.15E-03 3.47£-03 l.4 7 E-02 u CF C OL 426245015 6/2 1/2017 1-1 31 -9.66E-04 4.72E-03 1.53£-02 u CF ONS-1 426245016 6/2 1/20 1 7 1-1 31 6.83E-04 7.86E-03 2.7 0E-02 u CF ONS-2 426245017 6/2 1/20 1 7 1-1 31 -1.1 5£-03 4.62E-03 I .49E-02 u CF ONS-3 4262450 1 8 6/2 1/20 1 7 1-1 31 1.73E-03 5.32E-03 1.86£-02 u CF ONS-4 4262450 1 9 6/2 1/20 1 7 1-1 31 -7.1 2E-0 4 3.87£-03 1.24£-02 u CF ONS-5 426245020 6/2 1/20 1 7 1-1 3 1 -1.7 1 E-0 4 4.52E-03 1.52£-02 u CF ONS-6 42624502 1 6/2 1/20 1 7 1-1 3 1 -5.47£-03 3.77£-0 3 4.39E-03 u CF NBF 4267920 1 2 6/28/20 1 7 1-1 3 1 4.56E-03 5.67E-03 2.07£-02 u D-38 Don a ld C. Coo k N u clear Plan t Annual Radiologi c al Environmental Operating Report 20 1 7 SAMPLE END CO N C ST D.DE V. MDC FL A GS TYPE STATION LSN D ATE NUCL ID E (pCi/m 3) (pCi/m3) (pCi/m 3) CF SBN 4267920 13 6/28/20 1 7 1-13 1 -1.04£-03 4.72£-03 1.53£-02 u CF DOW 4267920 14 6/28/20 1 7 1-13 1 1.78£-03 4.4 1£-03 1.52£-0 2 u CF COL 4267920 15 6/28/20 1 7 1-131 -4.94£-04 4.24£-03 I .42£-02 u CF ONS-1 4267920 16 6/28/20 1 7 1-1 31 1.87£-03 3.90£-03 1.42£-02 u CF ONS-2 4267920 17 6/28/20 1 7 1-13 1 -3.24£-03 3.59£-03 8.83£-03 u CF ONS-3 4267920 18 6/28/20 1 7 1-1 31 1.97£-03 3.95£-03 1.44£-02 u CF ONS-4 4267920 19 6/28/20 1 7 1-1 3 1 -7.1 3£-03 4.96£-03 9.49£-03 u CF ONS-5 426792020 6/28/20 1 7 1-131 -1. I I E-02 6.04£-03 1.25£-02 u CF ONS-6 42679202 1 6/28/20 1 7 1-13 1 3.38£-03 5.05£-03 1.77£-02 u CF NBF 4273700 12 7/5/20 1 7 1-1 3 1 2.80£-04 3.70£-03 1.24£-02 u CF SBN 427370013 7/5/20 1 7 1-1 3 1 -9.82£-04 1.84£-03 5.33£-03 u CF DOW 4273700 14 7/5/20 1 7 1-13 1 1.1 5£-03 2.73£-03 9.68£-03 u CF COL 4273700 1 5 7/5/20 1 7 1-13 1 -2. I 9£-03 2.85£-03 8.26£-03 u CF ONS-1 4273700 1 6 7/5/20 1 7 1-13 1 2.5 1£-04 3.89£-03 1.1 9£-02 u CF ONS-2 4273700 17 7/5/20 1 7 1-1 3 1 -2.23£-03 3.22£-03 9.57£-03 u CF ONS-3 427370018 7/5/20 1 7 1-1 3 1 2.24£-03 3.6 1£-03 1.26£-02 u CF ONS-4 4273700 19 7/5/20 1 7 1-1 3 1 2.34£-03 2.75£-03 1.04£-02 u CF ONS-5 427370020 7/5/20 1 7 1-13 1 2.28£-03 3.4 1 E-03 1.2 1 E-02 u CF ONS-6 42737002 1 7/5/20 1 7 1-1 31 1.55£-03 2.9 1£-03 1.04£-02 u CF NBF 4278920 1 2 7/12/20 1 7 1-13 1 5.8 1£-03 3.25£-03 1.1 7£-0 2 u CF SBN 4278920 1 3 7/1 2/20 1 7 1-13 1 -2.45£-03 2.59£-03 7.00E-03 u CF DOW 4278920 14 7/1 2/20 1 7 1-1 31 -3.79£-03 3.23£-03 8.50£-03 u CF COL 4278920 1 5 7/12/20 1 7 1-1 3 1 1.60£-03 3.39£-03 1.1 9£-02 u CF ONS-1 427892016 7/12/20 1 7 1-1 3 1 2.09£-03 2.90£-03 1.04£-02 u CF ONS-2 4278920 1 7 7/12/20 17 1-13 1 1.22£-03 3.26£-03 1.1 5£-0 2 u CF ONS-3 4278920 1 8 7/12/20 I 7 1-1 3 1 -4.09£-03 2.88£-03 7.47£-0 3 u CF ONS-4 4278920 1 9 7/12/20 1 7 1-13 1 -8.69£-04 5.2 1 E-03 1.53£-02 u CF ONS-5 427892020 7/12/20 1 7 1-13 1 -1.76£-03 3.63£-03 1.13£-02 u CF ONS-6 42789202 1 7/12/20 1 7 1-1 3 1 2.11£-03 2.7 6£-03 I .02£-02 u CF NBF 4285 1 00 1 2 7/19/20 1 7 1-1 31 -4.0 4£-03 4.1 7£-03 1.1 2£-0 2 u CF SBN 4285 1 0013 7/1 9/20 1 7 1-1 31 -2.08£-03 3.78£-03 1.1 6£-02 u CF DOW 4285 1 00 1 4 7/19/20 1 7 1-1 3 1 5.78£-03 5.36£-03 2.05£-02 u CF COL 4285 1 00 1 5 7/19/20 1 7 1-131 -4. 1 3£-03 4.1 6£-03 9.23£-0 3 u CF ONS-1 4285 1 00 1 6 7/19/20 1 7 1-1 31 -5.23£-03 4.30£-03 9.92£-03 u CF ONS-2 4285 1 00 1 7 7/1 9/20 1 7 1-1 3 1 2.3 1£-04 2.63£-03 9.1 7£-0 3 u CF ONS-3 4285 1 00 18 7/1 9/20 1 7 1-1 3 1 1.9 I E-03 4.1 l E-03 1.51£-02 u CF ONS-4 4285100 1 9 7/1 9/20 1 7 1-13 1 -8.60£-04 4.6 1 E-03 1.46£-02 u CF ONS-5 428510020 7/19/20 17 1-1 3 1 -1.99£-03 2.95£-03 8.84£-03 u CF ONS-6 4285 1 002 1 7/19/20 1 7 1-13 1 2.1 6£-03 4.29£-03 1.47£-02 u CF NBF 4290360 12 7/26/20 1 7 1-13 1 5.52£-03 5.3 1£-03 1.98£-02 u CF SBN 4290360 1 3 7/26/20 1 7 1-13 1 7.50£-04 3.53£-03 1.26£-02 u CF DOW 429036014 7/26/20 1 7 1-13 1 2.74£-03 3.78£-03 I .34E-02 u CF COL 4290360 15 7/26/20 1 7 1-131 4.97£-03 3.75£-03 I .44£-02 u CF ONS-1 4290360 1 6 7/26/20 1 7 1-13 1 -6.40£-04 4.70£-03 1.53£-02 u CF ONS-2 4290360 17 7/26/20 1 7 1-13 1 -2.80£-03 3.56£-03 9.53£-03 u CF ONS-3 4290360 18 7/26/20 1 7 1-1 3 1 -1.75£-03 3.44£-03 9.78£-03 u CF ONS-4 429036019 7/26/20 1 7 1-13 1 3.78£-04 3.38£-03 1.1 5£-02 u CF ONS-5 429036020 7/26/20 1 7 1-1 3 1 -9.1 7£-04 3.52£-03 1.11 E-02 u CF ONS-6 42903602 1 7/26/20 1 7 1-1 3 1 -3.74£-03 3.1 2£-03 6.88£-03 u CF NBF 4297960 12 8/2/20 1 7 1-1 3 1 3.1 6£-05 2.6 1£-03 8.68£-03 u D-39 Donald C. Cook Nucl e ar Plant Annual Radiological Environmental Operating Report 2017 S AMPL E E ND CONC ST D.D E V. MD C FLAGS TYPE ST A TI O N LS N D ATE NUCL ID E (pCi/m3) (pC i/m 3) (pCi/m 3) CF SBN 4297960 1 3 8/2/20 1 7 1-13 1 -2.26E-03 4.55E-03 1.35E-02 u CF DOW 4297960 1 4 8/2/20 1 7 1-1 3 1 -3.24E-0 3 3.77E-03 I.OS E-02 u CF COL 429 7 960 1 5 8/2/20 1 7 1-1 3 1 5.49E-03 5.23E-03 l.98E-02 u CF ONS-1 429796016 8/2/20 1 7 1-1 3 1 9.08E-03 5.28E-03 2.ll E-02 u CF ONS-2 4297960 17 8/2/20 1 7 1-1 3 1 -5.1 7E-03 4.95E-03 l.24E-02 u CF ONS-3 4297960 1 8 8/2/20 1 7 1-1 3 1 9.76E-03 6.52E-03 2.SOE-02 u CF ONS-4 429796019 8/2/20 1 7 1-131 -5.70E-03 3.84E-03 7.30E-03 u CF ONS-5 429796020 8/2/20 1 7 1-1 3 1 -2.00E-03 4.64E-03 1.36E-02 u CF ONS-6 42979602 1 8/2/20 1 7 1-131 4.47E-03 3.48E-03 l.39E-02 u CF NBF 4303770 12 8/9/20 1 7 1-1 31 -1.35E-03 6.3 l E-03 2.08E-02 u CF SBN 4303770 1 3 8/9/20 1 7 1-1 3 1 -4.33E-03 2.55E-03 4.34E-03 u CF DOW 4303770 1 4 8/9/2 0 1 7 1-1 31 -3.58E-03 6.49E-03 2.0 I E-02 u CF COL 4303770 15 8/9/2 0 1 7 1-1 3 1 -I .57E-03 4.75E-03 l.5 I E-02 u CF ONS-1 4303770 1 6 8/9/20 1 7 1-13 1 2.0SE-03 3.55E-03 l.34E-02 u CF ONS-2 4303770 1 7 8/9/20 1 7 1-13 1 3.65E-03 4.76E-03 l.76E-02 u CF ONS-3 4303770 1 8 8/9/20 1 7 1-13 1 -6.54E-03 4.SOE-03 l.O I E-02 u CF ONS-4 4303770 19 8/9/20 1 7 1-1 31 -4.53E-03 5.75E-03 l.62E-02 u CF ONS-5 430377020 8/9/20 1 7 1-1 3 1 5.36E-0 3 4.3 1 E-03 1.7 1 E-02 u CF ONS-6 43037702 1 8/9/20 1 7 1-131 l.1 8E-02 6.86E-03 2.64E-02 u CF NBF 43 1 0260 1 2 8/16/20 1 7 1-1 3 1 -3.65E-04 4.42E-03 I .45E-02 u CF SBN 43 1 0260 1 3 8/16/20 17 1-1 3 1 -l.2 I E-03 4.93E-03 l.58E-02 u CF DOW 43 1 0260 1 4 8/16/20 1 7 1-1 3 1 -1.52E-03 3.83E-03 l.1 I E-02 u CF COL 43 1 0260 1 5 8/16/20 1 7 1-1 3 1 -3.70E-04 3.38E-03 l. I 2 E-02 u CF ONS-1 43 1 0260 1 6 8/16/20 1 7 1-1 3 1 -I .57E-03 5.72E-03 l.83E-02 u CF ONS-2 43 1 0260 1 7 8/1 6/20 1 7 1-1 3 1 5.98E-04 5.04E-03 l.72E-02 u CF ONS-3 43 1 0260 1 8 8/16/20 1 7 1-13 1 2.28E-0 3 3.75E-03 1.31 E-02 u CF ONS-4 43 1 026019 8/16/20 1 7 1-1 3 1 5.41E-03 3.45E-03 I .36E-02 u CF ONS-5 43 1 026020 8/16/20 1 7 1-13 1 2.63E-03 3.64E-03 l.35E-02 u CF ONS-6 43 1 02602 1 8/1 6/20 1 7 1-1 3 1 6.06E-03 5.4 1 E-03 2.02E-02 u CF NBF 43 1 528012 8/23/20 1 7 1-1 31 1.24E-02 8.73E-03 3.4 1 E-02 u CF SBN 43 1 5280 13 8/23/20 1 7 1-1 3 1 3.84E-03 4.23E-03 l.6 1 E-02 u CF DOW 43 1 528014 8/23/20 1 7 1-1 31 -3.69E-03 4.1 9E-03 1.09E-02 u CF COL 43 1 5280 1 5 8/23/20 1 7 1-1 3 1 -4.07E-03 6.46E-03 l.89E-02 u CF ONS-1 43 1 5280 16 8/23/20 1 7 1-1 3 1 -3.5 I E-03 4.0 0E-03 l.09E-02 u CF ONS-2 43 1 5280 1 7 8/23/20 1 7 1-13 1 -3.22E-03 2.49E-03 6.24E-03 u CF ONS-3 43 1 5280 18 8/23/20 1 7 1-1 3 1 5.37E-0 3 3.58E-03 I .56E-02 u CF ONS-4 43 1 5280 1 9 8/23/20 1 7 1-1 3 1 2.1 7E-03 4.28E-03 l.55E-02 u CF ONS-5 43 1 528020 8/23/20 1 7 1-1 3 1 -6.00E-04 5.58E-03 l.8 0 E-02 u CF ONS-6 43 1 52802 1 8/23/20 1 7 1-131 8.00E-03 5.76E-03 2.I SE-02 u CF NBF 43202 1 012 8/30/20 1 7 1-131 2.72E-04 2.70E-03 9.I SE-03 u CF SBN 43202 1 0 1 3 8/3 0/20 1 7 1-1 3 1 3.43E-03 3.08E-03 1.0SE-02 u CF DOW 43202 1 0 14 8/30/20 1 7 1-13 1 l.1 IE-03 3.03E-03 I.OSE-02 u CF COL 43202 1 0 15 8/30/20 1 7 1-1 31 3.09E-03 2.30E-03 8.S I E-03 u CF ONS-1 43202 1 0 16 8/3 0/20 1 7 1-1 31 -2.95E-03 2.03E-03 4.56E-03 u CF ONS-2 43202 1 0 1 7 8/30/20 1 7 1-1 31 -4.93E-04 2.1 I E-03 6.95E-03 u CF ONS-3 43202 1 0 1 8 8/3 0/20 1 7 1-1 31 1.42E-03 2.63E-03 9.32E-03 u CF ONS-4 43202 1 019 8/3 0/20 1 7 1-1 31 -3.93E-0 3 2.93E-03 7.42E-03 u CF ONS-5 43202 1 020 8/3 0/20 1 7 1-1 31 l.85E-0 3 2.7 8E-03 9.60 E-03 u CF ONS-6 432 0 2 1 02 1 8/3 0/20 1 7 1-1 3 1 -1.8 1 E-0 3 2.0 l E-03 5.4 1E-03 u CF NBF 4324700 1 2 9/6/20 1 7 1-1 3 1 I .42E-03 6.06E-03 2. l OE-02 u D-40 Don a ld C. Cook N ucle a r Pl a n t Annu a l Radiolog i c a l Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/m3) (pCi/m3) (pCi/m3)

CF SBN 432470013 9/6/20 1 7 1-131 -1.56 E-03 6.00E-03 1.93E-0 2 u CF DOW 432470014 9/6/20 17 1-13 1 I .04E-0 3 5.34 E-03 I.87E-02 u CF COL 432470015 9/6/20 1 7 1-1 31 1.62E-03 7.51 E-03 2.66E-02 u CF ONS-1 4324700 1 6 9/6/20 1 7 1-131 -3.11 E-04 4.87E-03 1.60E-02 u CF ONS-2 432470017 9/6/20 1 7 1-13 1 7.85E-03 5.27 E-03 2.04E-02 u CF ONS-3 432470018 9/6/20 1 7 1-131 -4.70E-03 3.78E-03 7.90E-0 3 u CF ONS-4 4324700 19 9/6/20 1 7 1-1 3 1 3.85£-03 4.56 E-03 l.73E-02 u CF ONS-5 432470020 9/6/20 1 7 1-131 4.70£-03 5.50E-03 2.0 9E-02 u CF ONS-6 432470021 9/6/20 17 1-1 3 1 -1.30£-02 6.58E-03 l.18E-02 u CF NBF 43 295 7012 9/13/2017 1-1 3 1 2.1 5E-03 4.09E-03 1.49£-02 u CF SBN 432 9570 13 9/13/20 1 7 1-1 31 -I .48E-03 2.8 1 E-03 7.79E-03 u CF DOW 432957014 9/13/2017 1-131 4.29E-03 4.08 E-03 l.58E-02 u CF COL 432957015 9/13/2017 1-1 3 1 1.45E-03 3.88E-0 3 l.39E-02 u CF ONS-1 432957016 9/13/20 17 1-131 9.5 1 E-03 5.36E-03 2.13 E-0 2 u CF ONS-2 432957017 9/13/20 17 1-131 3.66E-0 3 5.48 E-03 2.09E-02 u CF ONS-3 4 3295 7018 9/13/20 1 7 1-131 5.75£-03 4.78 E-03 l.8 4E-02 u CF ONS-4 432957019 9/13/20 17 1-1 3 1 -8. I 8E-03 4.74 E-03 7.97E-03 u CF ONS-5 432957020 9/13/20 17 1-13 1 -6.17£-03 5.67£-03 l.37E-02 u CF ONS-6 432957021 9/13/20 17 1-131 -8.93E-04 4.59 E-0 3 1.5 I E-02 u CF NBF 433420012 9/20/20 17 1-131 -2.15£-03 3.74E-03 l.09E-02 u CF SBN 433420013 9/20/20 1 7 1-131 1.I I E-04 3.25£-03 l.lOE-02 u CF DOW 43 34200 14 9/20/20 1 7 1-131 -6.7 1 E-03 5.02 E-03 l.26E-0 2 u CF COL 4 334200 15 9/20/20 1 7 1-13 1 -2.75E-04 4.3 I E-03 I .39E-02 u CF ONS-1 43 34200 16 9/20/20 1 7 1-131 2.52E-03 5.9 8 E-03 I.99E-02 u CF ONS-2 433420017 9/20/20 1 7 1-13 1 4.58£-03 4.24E-03 1.57£-02 u CF ONS-3 433420018 9/20/20 1 7 1-131 6.20E-04 3.5IE-03 1.24E-02 u CF ONS-4 433420019 9/20/20 17 1-13 1 2.98E-03 4.38£-03 1.7 1 E-02 u CF ONS-5 433420020 9/20/20 1 7 1-131 -4.20E-0 3 4.07£-03 9.78E-03 u CF ONS-6 433420021 9/20/20 1 7 1-131 I.1 8E-02 6.63E-03 2.57E-02 u CF NBF 433918012 9/27/20 1 7 1-1 3 1 2.79£-03 4.00 E-03 l.54E-02 u CF SBN 433918013 9/27/20 17 1-131 -4.04E-03 3.35E-03 7.30E-03 u CF DOW 433918014 9/27/2017 1-131 1.08E-02 6.15£-03 2.44E-02 u CF COL 433918015 9/27/2017 1-131 2.00E-03 3.4IE-03 l.25E-02 u CF ONS-1 433918016 9/27/20 1 7 1-131 -7.13E-03 4.6 9 E-03 1.00 E-02 u CF ONS-2 43 39 18017 9/27/20 17 1-131 -4.74£-03 5.32 E-03 I .50E-02 u CF ONS-3 433918018 9/27/20 1 7 1-13 1 3.1 9E-03 9.83 E-03 3.46E-02 u CF ONS-4 4 339 18019 9/27/2017 1-131 2.61E-0 3 2.30 E-03 l.03E-02 u CF ONS-5 433918020 9/27/2017 1-1 3 1 -1.86£-03 3.69£-03 1.00 E-02 u CF ONS-6 43 39 18021 9/27/2017 1-13 1 2.13 E-03 6.15 E-03 2.1 3E-0 2 u CF NBF 434504012 I 0/4/2017 1-1 3 1 -6.49E-03 5.17£-0 3 l.23E-02 u CF SBN 434504013 10/4/2017 1-131 -3.21E-03 4.27E-03 1.22£-02 u CF DOW 434504014 1 0/4/2017 1-131 -1.19£-03 4.67£-03 1.50£-02 u CF COL 434504015 10/4/2017 1-13 1 3.70£-03 6.95£-03 2.55£-02 u CF ONS-1 434504016 10/4/2017 1-131 5.76£-03 5.58 E-03 2.08E-02 u CF ONS-2 434504017 1 0/4/2017 1-131 -4.14£-03 4.55E-03 I .23E-0 2 u CF ONS-3 434504018 10/4/20 17 1-131 -7.42E-04 4.53E-03 1.46£-02 u CF ONS-4 434504019 1 0/4/20 17 1-131 -5.29E-03 4.24£-03 9.66E-03 u CF ONS-5 434504020 I 0/4/20 17 1-131 -3.62E-03 3.81£-03 1.08£-02 u CF ONS-6 43450402 1 1 0/4/20 17 1-131 -3.73E-04 3.72E-03 1.2 2£-02 u CF NSF 435246012 10/11/2017 1-131 1.32£-03 6.23E-0 3 2.14£-02 u D-4 1 L ____ _

Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE E ND CONC STD.DEV. MDC FLAGS TYPE STATION LSN DAT E NU CL ID E (pCi/m3) (pCi/m3) (pCi/m3) CF SBN 4352460 1 3 10/11/2017 1-1 3 1 -I .40 E-03 4.66E-0 3 l.46 E-0 2 u CF DOW 4352460 14 10/11/2017 1-1 3 1 -4.03 E-03 6.03E-0 3 1.77 E-02 u CF COL 435246015 10/1 1/2017 1-1 3 1 2.83£-03 4.29£-0 3 1.58£-0 2 u CF ONS-l 4352460 1 6 10/1 1/2 017 1-1 3 1 -1.12£-02 9.06£-0 3 2.20£-02 u CF ONS-2 4352460 1 7 I 0/1 1/2017 1-1 3 1 -1.38£-03 5.88£-03 1.89£-02 u CF ONS-3 4352460 1 8 I 0/1 1/2017 1-1 3 1 -7.76£-05 4.96£-03 1.44£-0 2 u CF ONS-4 4352460 1 9 10/11/2017 1-1 3 1 3.0 I E-05 4.37£-0 3 1.4 4£-02 u CF ONS-5 435246020 10/1 1/20 1 7 l-131 3.57E-03 4.92£-03 1.82£-02 u CF ONS-6 43524602 1 1 0/1 1/2017 1-1 3 1 -5.65 E-03 4.7 1£-0 3 1.1 5£-02 u CF NBF 43554 1 0 1 2 10/1 8/20 1 7 1-131 9.92E-04 2.65£-03 9.56E-03 u CF SBN 43554 101 3 I 0/18/2017 1-1 3 1 -3.06£-03 3.06E-0 3 8.41E-03 u CF DOW 43554 1 014 I 0/18/2017 1-13 1 -8.90£-04 3.9 1£-03 1.2 3E-0 2 u CF COL 43554 1 0 1 5 10/1 8/2017 1-1 3 1 1.14 E-03 2.48£-03 8.42E-03 u CF ONS-1 43554 1 016 I 0/18/2017 1-1 3 1 4.51E-04 3.22£-0 3 l.07 E-0 2 u CF ONS-2 43554 1 0 17 10/18/20 17 1-1 3 1 -2.68E-03 2.77E-0 3 7.33£-03 u CF ONS-3 43554 1 018 I 0/18/2017 1-1 3 1 -1.63£-03 2.86E-0 3 8.66E-03 u CF ONS-4 43554 1 0 1 9 I 0/18/2017 1-1 3 1 -1.8 1 E-03 2.4 1£-03 6.86£-03 u CF ONS-5 43554 1 020 I 0/18/2017 1-1 31 -3.73E-04 3.02£-03 I.OI E-0 2 u CF ONS-6 43554 1 021 I 0/18/20 1 7 1-1 31 -1.05E-03 2.62E-03 8. I OE-03 u CF NBF 4364770 1 2 10/2 5/20 1 7 1-1 3 1 9.37 E-04 3.38£-03 1.20£-02 u CF SBN 4364770 1 3 I 0/25/20 1 7 1-13 1 4.48£-03 4.35£-03 l.57E-02 u CF DOW 4364770 1 4 10/25/2017 1-1 3 1 6.76E-03 4.02£-03 1.6 1 E-02 u CF COL 4364770 1 5 I 0/25/2017 1-13 1 5.37£-03 3.70E-03 l.49E-02 u CF ONS-1 4364770 1 6 10/25/2017 1-1 31 -3.80£-03 3.78£-0 3 9.2 4E-03 u CF ONS-2 4364770 1 7 I 0/2 5/20 1 7 1-1 3 1 -1.80£-03 2.62£-0 3 6.60E-03 u CF ONS-3 4364770 1 8 I 0/2 5/2017 1-1 3 1 1.5 3£-04 4.20E-03 I.4 3E-02 u CF ONS-4 4 364 770 1 9 10/2 5/2017 1-1 31 -2.64£-03 3.42E-0 3 9.49£-03 u CF ONS-5 436477020 10/25/20 1 7 1-131 2.34E-04 3.38E-0 3 I.1 6E-02 u CF ONS-6 436477021 10/25/2017 1-1 3 1 8.36£-04 3.75£-0 3 1.32£-02 u CF NBF 4369920 1 2 11/1/2017 1-1 3 1 -5.99E-0 4 6.69£-03 2.1 8E-02 u CF SBN 4 369920 1 3 11/1/2017 1-1 3 1 1.45£-03 4.92£-03 l.72 E-02 u CF DOW 436992014 11/1/20 17 1-1 3 1 -7.3 1 E-03 6.1 3E-0 3 I.48E-02 u CF C OL 436992015 l l/1/2017 1-1 3 1 -4.04£-03 4.72E-03 1.32£-02 u CF ONS-1 4369920 1 6 11/1/20 1 7 1-1 31 -6.33£-03 6.50E-03 1.50£-02 u CF ONS-2 436992017 11/1/20 1 7 1-1 3 1 1.18£-03 3.26£-0 3 1.1 8£-02 u CF ONS-3 436992018 11/1/2017 1-1 3 1 6.3 1 E-03 7.84E-03 2.94£-02 u CF ONS-4 436992019 11/1/20 1 7 1-1 3 1 7.99E-03 4. I OE-03 1.70£-02 u CF ONS-5 436992020 11/1/20 1 7 1-1 3 1 -l.20 E-03 3.56E-03 I.OI E-02 u CF ONS-6 43699202 1 11/1/20 17 1-13 1 -2.98£-03 4.32E-0 3 l.23E-02 u CF NBF 4376090 1 2 11/8/2017 1-1 3 1 -l.3 9E-03 3.99£-03 1.21 E-02 u CF SBN 437609013 11/8/2017 1-1 3 1 -4.95E-03 4.79E-03 1.20£-02 u CF DOW 437609014 11/8/2017 1-1 3 1 3.75E-03 4.33E-0 3 l.59E-02 u CF COL 437609015 11/8/20 1 7 1-1 31 -3.38£-03 3.57E-03 8.36£-03 u CF ONS-1 437609016 11/8/2017 1-131 5.44£-03 5.09£-03 1.96£-02 u CF ONS-2 4376090 1 7 11/8/2017 1-1 3 1 l.13 E-03 2.35£-03 8.88E-03 u CF ONS-3 4376090 1 8 11/8/2017 1-1 3 1 -1.66E-03 4.69E-03 l.41 E-02 u CF ONS-4 4 37609 019 11/8/2017 1-1 3 1 5.99E-03 3.73E-03 1.61 E-02 u CF ONS-5 437609020 11/8/2017 1-1 3 1 2.25£-03 3.87E-03 I.45 E-02 u CF ONS-6 437609021 11/8/20 1 7 1-1 3 1 l.79 E-03 6.53£-03 2.32E-0 2 u CF NBF 43823 1 0 1 2 11/15/20 1 7 1-1 3 1 5.20E-03 5. I I E-0 3 I.94 E-02 u 0-42 Don a ld C. Cook Nu c lear Pla n t Annual Radiologi ca l Environmental Operating Report 20 17 SAMPLE EN D C O NC ST D.D E V. MDC FLAGS TYP E ST A TIO N LS N D ATE NUCL ID E (pCi/m3) (pCi/m3) (pCi/m 3) CF SBN 43823 1 0 1 3 11/1 5/20 17 1-13 1 9.3 1 E-04 4.34E-03 l.53E-02 u CF D OW 4382310 1 4 11/15/2 0 1 7 1-1 3 1 2.47E-03 3.70E-03 l.38E-0 2 u CF COL 43823 1 0 1 5 11/15/20 1 7 1-131 -5.30E-03 5.37E-03 l.44E-02 u CF ONS-1 4 3823 1 0 1 6 1 1/1 5/20 1 7 1-1 3 1 4.28E-03 7.26E-03 2.7 1 E-0 2 u CF ONS-2 4382310 1 7 11/15/20 1 7 1-1 3 1 4.23E-04 3.56E-03 1.24E-02 u CF ONS-3 4382310 1 8 11/15/20 1 7 1-13 1 5.85E-03 3.77E-03 1.64E-0 2 u CF ONS-4 43823 1 0 1 9 I 1/15/20 1 7 1-1 3 1 l.03E-03 4.28E-03 l.49E-02 u CF ONS-5 43823 1 020 1 1/1 5/20 1 7 1-1 31 -5.76E-03 4.94E-03 I. l 7E-02 u CF ONS-6 43823 1 02 1 11/15/20 17 1-1 3 1 -2.1 9E-03 3.54E-03 I.OOE-02 u CF NBF 4386320 1 2 1 1/22/20 1 7 1-1 3 1 -3.1 4E-03 3.74E-03 1.07E-02 u CF SBN 4386320 1 3 11/22/20 1 7 1-1 31 -2.90E-03 2.73E-03 7.0SE-03 u CF DOW 4386320 1 4 11/22/20 1 7 1-1 3 1 3.4 1 E-04 5.48 E-03 1.85E-02 u CF COL 4386320 1 5 1 1/22/20 1 7 1-1 3 1 -3.30E-03 3.1 5E-03 8.5 1 E-03 u CF ONS-1 4386320 1 6 11/22/20 17 1-1 3 1 -5.IO E-03 4.95E-03 l.3 7 E-02 u CF ONS-2 4386320 1 7 I 1/22/20 1 7 1-1 3 1 -l.23E-03 3.63E-03 1.I SE-02 u CF ONS-3 4386320 1 8 I 1/22/20 1 7 1-1 3 1 -3.9 1 E-03 3.35E-03 8.29E-03 u CF ONS-4 4386320 1 9 1 1/22/20 17 1-13 1 -5. JO E-0 3 3.23E-03 8.27E-03 u CF ONS-5 438632020 1 1/22/20 1 7 1-131 3.56E-03 4.75 E-03 1.7 1 E-02 u CF ONS-6 43863202 1 11/22/20 1 7 1-1 3 1 -1.90E-03 3. I I E-03 9.45E-0 3 u CF NBF 4390890 1 2 1 1/29/20 1 7 1-1 31 -4.35E-03 3.78E-03 7.5 1 E-0 3 u CF SBN 4390890 1 3 I 1/29/20 1 7 1-1 3 1 -l.58E-03 4.33E-03 I .33E-02 u CF DOW 4390890 1 4 1 1/29/20 17 1-13 1 -3.00E-03 4.62E-03 1.33E-02 u CF COL 4390890 1 5 1 1/29/20 1 7 1-131 -2.88E-03 3. I OE-03 8.79E-03 u CF ONS-1 4390890 1 6 11/29/20 17 1-131 -2.00E-03 3.40E-03 9.60E-03 u CF ONS-2 4390890 1 7 1 1/29/20 1 7 1-13 1 2.94E-03 4.68E-03 J.74E-02 u CF ONS-3 4390890 1 8 I 1/29/20 17 1-1 31 -7.9 1 E-03 4.75E-03 8.52E-03 u CF ONS-4 4390890 1 9 1 1/29/20 17 1-13 1 9.60E-05 2.67E-03 9.03E-03 u CF ONS-5 439089020 1 1/29/20 17 1-13 1 -9.63E-03 5.44E-03 8.23E-03 u CF ONS-6 439089021 1 1/29/20 1 7 1-1 3 1 -l.62E-03 4.42E-03 l.35E-02 u CF NBF 4396630 1 2 1 2/6/20 1 7 1-13 1 6.5 5 E-04 5.78E-03 2.0 I E-02 u CF SBN 4396630 1 3 1 2/6/20 17 1-131 -l.38E-03 6.04E-03 I .92E-02 u CF DOW 4396630 1 4 1 2/6/20 1 7 1-1 3 1 4.43E-03 6.81E-03 2.42E-02 u CF COL 4396630 1 5 1 2/6/20 1 7 1-13 1 l.0 4E-03 3.96E-03 1.35E-02 u CF ONS-1 4396630 1 6 1 2/6/20 17 1-13 1 4.23E-03 4.27E-03 l.65E-02 u CF ONS-2 4396630 1 7 1 2/6/20 1 7 1-1 3 1 6.02E-03 5.40E-03 2.06E-02 u CF ONS-3 4396630 1 8 1 2/6/20 17 1-1 3 1 -3.67E-03 5.24E-03 I .45E-02 u CF ONS-4 4396 630 1 9 1 2/6/20 1 7 1-13 1 -4.43E-03 5.67E-03 l.52E-02 u CF ONS-5 439663020 1 2/6/20 17 1-1 3 1 6.4 7 E-03 3.5 1 E-03 1.48E-02 u CF ONS-6 439663021 1 2/6/20 1 7 1-13 1 9.98E-04 4.SOE-03 1.68E-02 u CF NBF 440 1 580 1 2 1 2/13/20 1 7 1-1 3 1 2.70E-03 J.86E-03 6.82E-03 u CF SBN 4401580 1 3 1 2/13/20 17 1-1 3 1 1.36E-03 2.90E-03 9.79E-03 u CF DOW 440158014 1 2/13/20 1 7 1-13 1 2.84E-04 2.55E-03 8.1 3E-03 u CF COL 440 1 580 1 5 1 2/13/20 1 7 1-131 -5.2 1 E-04 l.65E-03 5.38E-03 u CF ONS-1 4401580 1 6 1 2/13/20 1 7 1-1 3 1 4.76E-03 3.78E-03 l.36E-02 u CF ONS-2 440158017 1 2/13/20 1 7 1-1 3 1 5.86E-04 2.72E-03 9.54E-03 u CF ONS-3 440 1 580 1 8 1 2/13/20 1 7 1-1 3 1 -3.77E-0 4 l.37£-03 3.9 1 E-0 3 u CF ONS-4 4401580 1 9 1 2/13/20 1 7 1-1 31 9.47E-05 2.49E-03 8.07£-03 u CF ONS-5 440 1 58020 1 2/13/20 1 7 1-1 3 1 -9.44E-04 2.30E-03 7.45£-03 u CF ONS-6 440 1 58021 1 2/13/20 1 7 1-13 1 -l.5 4E-03 3.5 IE-03 I. I OE-02 u CF NBF 44069 30 1 2 1 2/20/20 17 1-1 31 -3.39E-03 2.78E-03 7.66E-03 u D-43 Donald C. Cook Nucle a r Plant Annu a l Radiological Environmen t al Operating Report 2017 SAMPLE END CONC ST D.D EV. MDC FLAGS TYPE STATION LSN D ATE NUCL ID E (pCi/m3) (pCi/m3) (pCi/m3) CF SBN 4406930 1 3 1 2/20/20 1 7 1-1 3 1 -2.36E-03 2.04E-03 5.54E-03 u CF DOW 4406930 1 4 1 2/20/20 1 7 1-1 3 1 3.66E-03 3.50E-03 8.71E-03 u CF COL 4406930 1 5 1 2/20/20 1 7 1-1 3 1 4.00E-03 2.99E-03 l.05E-02 u CF ONS-1 4406930 1 6 1 2/20/20 1 7 1-1 31 -2.98E-03 2.33E-03 6.49E-03 u CF ONS-2 4406930 1 7 1 2/20/20 1 7 1-1 31 -6.46E-04 2.31E-03 7.52E-03 u CF ONS-3 440693018 1 2/20/20 1 7 1-131 2.36E-03 2.64E-03 9.03E-03 u CF ONS-4 4406930 1 9 1 2/20/20 1 7 1-1 31 3.98E-04 2.52E-03 8.1 2E-03 u CF ONS-5 440693020 1 2/20/20 1 7 1-1 31 -8.80 E-04 2.32E-03 7.50E-03 u CF ONS-6 44069302 1 1 2/20/20 1 7 1-1 31 8.43E-04 2.43E-03 8.50E-03 u CF NBF 4408480 1 2 1 2/27/20 1 7 1-1 31 2.50E-03 3.74E-03 1.40E-02 u CF SBN 440848013 1 2/27/20 1 7 1-1 3 1 -8.49E-03 4.53E-03 6.02E-03 u CF DOW 4408480 1 4 1 2/2 7/20 1 7 1-1 3 1 l.50E-03 I.OOE-02 3.46E-02 u CF COL 4408480 1 5 1 2/27/20 1 7 1-1 3 1 1.1 4£-02 4.68E-03 1.79E-02 u CF ONS-1 4408480 1 6 1 2/27/20 1 7 1-1 3 1 3.1 6£-03 4.2 1 E-03 I .50E-02 u CF ONS-2 4408480 1 7 1 2/27/20 17 1-1 3 1 -2.87£-03 3.30E-03 8.1 I E-03 u CF ONS-3 4408480 1 8 1 2/27/20 1 7 1-1 3 1 2. I I E-03 3.72E-03 1.32E-02 u CF ONS-4 4408480 1 9 1 2/27/20 17 1-1 3 1 -4.35£-04 2.83E-03 9.48E-03 u CF ONS-5 440848020 1 2/27/20 1 7 1-1 3 1 -2.75£-03 2.79£-03 7.46£-03 u CF ONS-6 440848021 1 2/27/20 1 7 1-131 4.76E-03 3.8 1 E-03 1.50E-02 u D-44 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 20 17 SAMPLE END CONC ST D.DEV. MDC FLAGS TYPE STATION LSN DATE NUCL ID E (pC i/kg) (pCi/kg) (pCi/kg) F H PCH-CNP 4 1 935600 1 3/17/20 1 7 Ac-228 l.4 4 E+O I l.04E+O I 3.53E+O I u F H PCH-CNP 4 1 935600 1 3/17/20 1 7 Ag-1 08m -3.79E+OO l.84E+OO 4.53E+OO u FH PCH-CNP 4 1 935600 1 3/17/20 1 7 Ag-I I O m 2.7 6E+OO 3.1 6E+OO I.08E+OI u FH PCH-CNP 41935600 1 3/17/20 1 7 Ba-140 8.9 1 E+OO l.37E+O I 4.75E+O I u FH PCH-CNP 41935600 1 3/17/20 1 7 Be-7 -2.03E+O I l.75E+O I 5.1 6E+O I u FH PCH-CNP 41935600 1 3/17/20 1 7 Ce-1 4 1 -1.23E+OO 3.54E+OO 1.1 2E+O I u FH PCH-CNP 41935600 1 3/17/20 1 7 Ce-1 44 1.7 1 E+O l l.12E+O I 3.67E+O I u FH PCH-CNP 4 1 935600 1 3/17/20 1 7 Co-57 -2.49E+OO 1.58E+OO 4.37E+OO u FH PCH-CNP 4 1 935600 1 3/17/20 1 7 Co-58 7.90E-O l 2.1 l E+OO 6.46E+OO u FH PCH-CNP 4 1 935600 1 3/17/20 1 7 Co-60 -5.1 8E+OO 2.75E+OO 6.77E+OO u FH PCH-CNP 41935600 1 3/17/20 1 7 Cr-5 1 3.83E+O l 2.06E+O l 7.07E+O I u F H PC H-CNP 4 1 935600 1 3/1 7/20 1 7 Cs-1 34 I.I O E+OO 2.75E+OO 9.20E+O O u FH PCH-CNP 4 1 935600 1 3/17/20 1 7 Cs-1 37 l.52E+O I 3.86E+OO 6.79E+OO M FH PC H-CNP 4 1 935600 1 3/1 7/20 1 7 Fe-59 -2.66E+OO 6.40E+OO 1.95E+O I u FH PCH-CNP 4 1 935600 1 3/17/20 1 7 1-13 1 7.41E+OO 5.99E+OO 2.IOE+O I u FH PCH-CNP 41935600 1 3/17/20 1 7 K-40 3.38E+03 2.06E+02 6.53E+O I FH PCH-CNP 4 1 935600 1 3/17/20 1 7 La-140 4.38E+OO 4.66E+OO I.7 1 E+O I u FH PCH-CNP 41935600 1 3/17/20 1 7 Mn-54 -9.44E-Ol l.93E+OO 5.90E+OO u Fl-I PCH-CNP 41935600 1 3/1 7/20 1 7 Nb-95 -7.92E-O l 2.38E+OO 7.52E+OO u Fl-I PCH-CNP 419356001 3/17/20 1 7 Ru-1 03 2.06E+OO 2.36E+OO 8.23E+OO u F H PCH-CNP 4 1 935600 1 3/17/20 1 7 Ru-1 06 7.1 7E+OO l.77E+O l 6.02E+O I u Fl-I PCH-CNP 41935600 1 3/17/20 1 7 Sb-1 24 -6.2 1 E+OO 4.I OE+OO 7.43E+OO u F H PC H-CNP 4 1 935600 1 3/17/20 1 7 Sb-1 25 3.71 E+OO 5.25E+OO l.83E+O I u FH PCH-CNP 4 1 935600 1 3/1 7/20 1 7 Se-75 -1.0 l E+OO 2.60E+OO 7.92E+OO u F l-I PC H-CNP 4 1 935600 1 3/17/20 1 7 T h-228 -9.13 E-O l 4.I OE+OO l.30E+OI u Fl-I PCH-CNP 4 1 935600 1 3/17/20 1 7 Zn-65 6.05E+OO 5.1 2E+OO 1.77E+O I u Fl-I PCH-CNP 4 1 935600 1 3/17/20 1 7 Zr-95 -3.69E+OO 4.1 9E+OO 1.23E+O I u Fl-I SLM 5 WNW 42000300 1 4/3/20 1 7 Ac-228 -6.09E+OO l.23E+O I 4.20E+O I u FH SLM 5 WNW 42000300 1 4/3/20 1 7 Ag-1 08m 3.46E+OO 2.73E+OO 9.24E+OO u FH SLM 5 WNW 42000300 1 4/3/20 1 7 Ag-l l Om l.28E-O I 4.00E+OO l.33E+O I u FH SLM 5 WNW 42000300 1 4/3/20 1 7 Ba-1 40 2.25E+OI 1.38E+O I 4.37E+O I u F l-I SLM 5 WNW 42000300 1 4/3/20 1 7 Be-7 -1.2 1 E+O l 2.1 5E+O I 6.58E+O I u F H SLM 5 WNW 42000300 1 4/3/20 1 7 Ce-1 41 4.88E+OO 7.58E+OO l.36E+O I u F H SLM 5 WNW 42000300 1 4/3/20 1 7 Ce-1 44 7.65E+OO l.63E+O I 5.24E+O I u FH SLM 5WNW 42000300 1 4/3/20 1 7 Co-57 2.45E+OO 2.07£+00 6.73E+OO u F H SLM 5 WNW 42000300 1 4/3/20 1 7 Co-58 -8.20E-02 2.83E+OO 9.45E+OO u Fl-I SLM 5 WNW 42000300 1 4/3/20 1 7 Co-60 3.90E-O l 3.6 1 E+OO 1.17£+0 1 u FH SLM 5 WNW 42000300 1 4/3/20 1 7 C r-5 1 -3.90E+OO 2.36E+O l 7.78£+0 1 u FH SLM 5 WNW 42000300 1 4/3/20 1 7 Cs-1 34 4.68E+OO 3.53E+OO l.25E+O I u FH SLM 5 WNW 42000300 1 4/3/20 1 7 Cs-1 37 8.03E+OO 3.94E+OO 8.39E+OO u FH SLM 5 WNW 420003001 4/3/20 1 7 Fe-59 2.1 7E+OI l.46E+O I 2.74E+O I u Fl-I SLM 5 WNW 420003001 4/3/20 1 7 1-131 l.03E+O l 4.28E+OO 1.20E+O I u F l-I SLM 5 WNW 42000300 1 4/3/20 1 7 K-40 2.90E+o3 l.8 1 E+02 l.05E+02 FH SLM 5 WNW 42000300 1 4/3/20 1 7 La-140 6.20E-02 3.04E+OO l.02E+O I u Fl-I SLM 5 WNW 42000300 1 4/3/20 1 7 Mn-54 3.27E+OO 3.1 2E+OO I.I OE+O I u FH SLM 5 WNW 42000300 1 4/3/20 1 7 Nb-95 -2.60E-0 1 3.1 2E+OO l.04E+O I u FH SLM 5 WNW 42000300 1 4/3/20 1 7 Ru-1 03 -5.1 9E+OO 3.22E+OO 8.35E+OO u FH SLM 5 WNW 42000300 1 4/3/20 1 7 Ru-1 06 -5.23E+O l 2.96E+O l 6.93E+O I u FH SLM 5 WNW 42000300 1 4/3/20 1 7 Sb-1 24 2.87E+O O 5.98E+OO 2.1 3E+O I u FH SLM 5 WNW 42000300 1 4/3/20 1 7 Sb-125 -4.72E+OO 7.90E+OO 2.45E+O I u D-45 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE E ND CONC STD.D EV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg) FH SLM 5 WNW 42000300 1 4/3/20 1 7 Se-75 -2.72E+OO 3.03E+OO 9.47 E+OO u FH SLM 5 WNW 42000300 1 4/3/20 1 7 T h-228 -2.2 1 E+OO 5.89E+OO 1.96E+OI u FH SLM 5 WNW 420003001 4/3/20 1 7 Z n-65 -9.95£-0 1 6.91E+OO 2.22E+O I u FH SLM 5 WNW 42000300 1 4/3/20 1 7 Zr-95 3.18E+OO 5.06E+OO l.77E+OI u FH OFS-N 428363001 7/18/20 1 7 Ac-228 -8.35E+OO 1.09E+O I 3.38E+O I u FH OFS-N 428363001 7/18/20 1 7 Ag-1 08m 5.71E-O I l.6 1 E+OO 5.54E+OO u FH OFS-N 42836300 1 7/18/20 1 7 Ag-ll Om -4.84E+OO 3.49E+OO 9.48E+OO u FH OFS-N 428363001 7/1 8/20 1 7 Ba-140 5.02£-0 1 9.9 1 E+OO 3.1 6E+OI u FH OFS-N 42836300 1 7/18/20 1 7 Be-7 -4.6 1 E+OO l.6 1 E+O I 5.3 1 E+OI u FH OFS-N 428363001 7/1 8/20 1 7 Ce-1 41 3.39E+OO 3.64E+OO 1.I OE+OI u FH OFS-N 42836300 1 7/18/20 1 7 Ce-1 44 -1.40E+OI l.24E+O I 3.66E+OI u FH OFS-N 428363001 7/1 8/20 1 7 Co-57 l.67E-O I l.56E+OO 5.05E+OO u FH OFS-N 42836300 1 7/18/20 1 7 Co-58 l.22E+OO 2.09E+OO 7.1 I E+OO u FH OFS-N 42836300 1 7/1 8/20 1 7 Co-60 -4.95£-0 1 2.72E+OO 7.98E+OO u FH OFS-N 42836300 1 7/18/20 1 7 Cr-51 -7.64E+OO l.84E+O I 6.1 7E+OI u FH OFS-N 42836300 1 7/1 8/20 1 7 Cs-1 34 l.3 1 E+OO 2.4 7 E+OO 8.35E+OO u FH OFS-N 428363001 7/18/20 1 7 Cs-137 3.33E+O I 5.59E+OO 5.99E+OO M FH OFS-N 42836300 1 7/1 8/20 1 7 Fe-59 -3.1 9E+OO 5.24E+OO 1.58E+OI u FH OFS-N 428363001 7/18/20 1 7 1-1 31 -1.29£-0 1 3.05E+OO l.04E+OI u FH OFS-N 42836300 1 7/18/20 1 7 K-40 3.33£+03 2.06E+02 3.65E+OI FH OFS-N 428363001 7/18/2 0 1 7 La-1 40 6.47£-0 1 2.78E+OO 9.63E+OO u FH OFS-N 42836300 1 7/18/20 1 7 M n-54 8.84£-0 1 2.1 I E+OO 7.09E+OO u FH OFS-N 428363001 7/18/20 1 7 Nb-95 -l.36E+OO l.89E+OO 5.7 1 E+OO u FH OFS-N 42836300 1 7/1 8/20 17 R u-1 03 l.8 5 E+OO 2.00E+OO 6.92E+OO u FH OFS-N 42836300 1 7/1 8/20 1 7 R u-1 06 6.3 1 E+OO l.95E+O I 6.60E+OI u FH OFS-N 428363001 7/1 8/20 1 7 Sb-1 24 2.30E+OO 4.24E+OO 1.5 1 E+OI u FH OFS-N 428363001 7/1 8/20 1 7 Sb-1 25 -1.6 1 E+OO 4.69E+OO l.55E+OI u FH OFS-N 428363001 7/18/20 1 7 Se-75 -9.92E-O I 2.75E+OO 8.39E+OO u FH OFS-N 428363001 7/18/20 1 7 Th-228 -4.5 1 E+OO 4.44E+OO l.26E+O I u FH OFS-N 428363001 7/18/2 0 1 7 Zn-65 2.09E+OO 5.24E+OO J.73E+OI u FH OFS-N 428363001 7/18/20 1 7 Zr-95 -7.09E+OO 4.1 I E+OO l.04E+OI u FH ONS-N 428363002 7/18/20 1 7 Ac-228 5.71£-0 1 8.48E+OO 2.89E+O I u FH ONS-N 428363002 7/18/20 1 7 Ag-1 08m -1.36E+OO 1.39E+OO 4.25E+OO u FH ONS-N 428363002 7/18/20 1 7 Ag-l l Om -9.91 E-0 1 2.93E+OO 9.1 8E+OO u FH ONS-N 428363002 7/18/20 1 7 Ba-140 9.39E+OO 8.35E+OO 2.92E+O I u FH ONS-N 428363002 7/18/20 1 7 Be-7 2.23E+OI l.37E+O I 4.80E+O I u FH ONS-N 428363002 7/18/20 1 7 Ce-1 4 1 -l.40E+OO 2.75E+OO 8.64E+OO u FH ONS-N 428363002 7/18/20 1 7 Ce-1 44 -3.64E+OO 9.46E+OO 3.00E+O I u FH ONS-N 428363002 7/18/2017 Co-57 2.38E+OO I .34E+OO 4.33E+OO u FH ONS-N 428363002 7/18/20 1 7 Co-58 -2.59E+OO 2.1 4E+OO 5.96E+OO u FH ONS-N 428363002 7/1 8/20 1 7 Co-60 -4.1 3E+OO 2.34E+OO 5.70E+OO u FH ONS-N 428363002 7/1 8/20 1 7 Cr-51 -1.72E+O I 1.46E+O I 4.53E+O I u FH ONS-N 428363002 7/1 8/20 1 7 Cs-134 -I .27E+OO 2.1 I E+OO 6.45E+OO u FH ONS-N 428363002 7/18/20 1 7 Cs-1 37 2.29E+O I 3.87E+OO 6.99E+OO M FH ONS-N 428363002 7/18/2017 Fe-59 4.66£-0 1 5.23E+OO l.68E+O I u FH ONS-N 428363002 7/18/20 1 7 1-1 3 1 -2.23E+OO 2.74E+OO 8.7 6E+OO u FH ONS-N 428363002 7/18/20 1 7 K-40 3.3 1£+03 l.96E+02 5.0 3E+O I F H ONS-N 428363002 7/18/20 1 7 La-1 40 -1.17 E+O O 2.25E+OO 6.73E+OO u F H ONS-N 428363002 7/18/20 1 7 Mn-54 3.78E+OO 2.2 1 E+OO 7.49E+OO u FH ONS-N 428363002 7/18/20 1 7 Nb-95 6.03£-0 1 I .88E+OO 6.30E+OO u D-46 Don a ld C. Cook N uclear Plant Annual Radiologi ca l Environmental Operating Report 2017 SAMPLE E ND CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/k g) (pCi/kg) (pCi/kg) FH ONS-N 428363002 7/18/20 1 7 Ru-I 03 -9.97£-02 l.47E+OO 4.92E+OO u FH ONS-N 428363002 7/18/2 0 1 7 R u-10 6 -1.53E+OI I .43E+O l 4.13 E+O I u FH ONS-N 428 363002 7/18/20 1 7 Sb-1 24 -4.75E+OO 3.59E+OO 8.08E+OO u F H ONS-N 428363002 7/18/20 1 7 Sb-I2S -6.74£-01 4.32E+OO 1.45 E+OI u F H ONS-N 428363002 7/18/20 17 Se-7S -1.14E+OO 2.00 E+OO 5.99E+OO u F H ONS-N 428363002 7/18/20 1 7 Th-228 -5.IO E+OO 3.54E+OO l.05 E+OI u F H ONS-N 428363002 7/18/20 1 7 Z n-6S -6.06E+OO 4.66E+OO l.20 E+OI u F l-I ONS-N 428363002 7/1 8/20 1 7 Z r-95 3.16£-01 3.14 E+OO 1.04E+O I u F H ONS-S 428363003 7/18/20 1 7 Ac-228 9.32E+OO l.55E+O l 3.77E+O l u F H ONS-S 428363003 7/18/20 1 7 Ag-1 08m -8.63£-01 l.93E+OO 6.1 5E+OO u F H ONS-S 428363003 7/18/20 1 7 Ag-l l Om 2.34E+OO 3.56E+OO l.1 8E+O l u F l-I ONS-S 428363003 7/18/20 1 7 Ba-14 0 -1.07 E+O l 9.69E+OO 2.75E+O l u F l-I ONS-S 428363003 7/1 8/20 1 7 Be-7 4.97£-01 l.7 9E+O I 5.89E+O l u F l-I ONS-S 42836300 3 7/18/20 1 7 Ce-1 4 1 -6.40 E+OO 4.02E+OO l.13 E+OI u FH ONS-S 428363003 7/18/20 1 7 Ce-14 4 -9.30E+OO l.30 E+O I 3.84E+O I u FH ONS-S 428363003 7/18/20 1 7 Co-S7 4.33£-0 1 l.87E+OO 5.87E+OO u FH ONS-S 428363003 7/18/20 1 7 Co-S8 9.27£-01 2.38E+OO 7.07E+OO u FH ONS-S 428363003 7/18/20 1 7 Co-60 2.08E+OO 2.53E+OO 8.95E+OO u Fl-I ONS-S 428363003 7/18/20 1 7 C r-SI -5.35E+OO l.86E+O I 6.IO E+O I u FH ONS-S 428363003 7/18/20 1 7 Cs-1 34 2.40E+OO 2.92E+OO 9.75E+OO u F I-I ONS-S 428363003 7/18/20 1 7 Cs-137 2.1 5E+O I 4.24E+OO 7.60E+OO M FI-I ONS-S 428363003 7/18/20 1 7 Fe-S9 -4.73E+OO 6.24E+OO l.96E+O I u Fl-I ONS-S 42 8363003 7/18/20 1 7 1-1 3 1 -4.05E+OO 3.64E+OO l.09E+O I u Fl-I ONS-S 428363003 7/18/20 1 7 K-40 3.88E+03 l.83E+02 4.86 E+OI Fl-I ONS-S 42836300 3 7/18/20 1 7 La-14 0 6.89E-OI 3.80E+OO l.28E+O I u Fl-I ONS-S 428 363003 7/18/20 1 7 Mn-S4 5.25E+OO 2.1 lE+OO 7.06E+OO u FI-I ONS-S 4 28363003 7/18/20 1 7 Nb-9S l.56E+OO 2.55E+OO 8.38E+OO u FI-I ONS-S 428363003 7/18/20 1 7 Ru-I 03 l.79E+OO 2.43 E+OO 8.2 1 E+OO u FH ONS-S 428 363003 7/18/20 1 7 Ru-106 -3.27E+OO 2.03E+O I 6.47E+O I u FH ONS-S 428363003 7/18/20 1 7 Sb-1 24 -6.88£-02 2.93E+OO 9.55E+OO u FH ONS-S 428363003 7/18/20 1 7 Sb-12S 4.00E-01 6.0 5E+OO 2.00 E+O I u FH ONS-S 428363003 7/18/20 1 7 Se-7S I .44E+OO 2.58E+OO 8.83E+OO u FH ONS-S 428363003 7/18/20 17 Th-228 1.63£-0 1 3.97E+OO l.30E+O l u Fl-I ONS-S 428363003 7/18/20 1 7 Z n-6S l.94E+OO 5.82E+OO 2.00E+O I u FH ONS-S 428363003 7/18/20 1 7 Zr-9S 2.7 1 E+OO 3.54E+OO 1.21E+Ol u FH OFS-S 428363004 7/18/20 1 7 Ac-228 -2.30E+O I 2.09E+O l 5.57E+O l u FH OFS-S 428363004 7/1 8/20 1 7 Ag-108m -2.6 0 E+OO 2.88E+OO 8.83E+OO u FI-I OFS-S 428363004 7/1 8/20 1 7 Ag-1 lOm 2.81E+OO 4.87 E+OO l.67E+O I u FI-I OFS-S 428363004 7/18/20 1 7 Ba-1 40 -l.83E+O I l.63E+O I 4.64E+O I u Fl-I OFS-S 428363004 7/18/20 1 7 Be-7 5.64E+OO 2.74E+OI 9.38E+OI u F l-I OFS-S 428363004 7/1 8/20 1 7 Ce-141 3.40E+OO 4.27E+OO l.45 E+O I u FH OFS-S 428363004 7/1 8/20 1 7 Ce-1 44 -1.1 5E+OI l.69E+O I 5.32 E+OI u FH OFS-S 4 28363004 7/18/20 1 7 Co-S7 -l .26E+OO 2.23E+OO 7.1 5E+OO u Fl-I OFS-S 428363004 7/18/20 1 7 Co-S8 -3.85E+OO 4.49 E+OO l.28E+OI u FH OFS-S 428363004 7/18/20 1 7 Co-60 1.40E+O O 3.92E+OO l.37E+OI u Fl-I OFS-S 428363004 7/1 8/20 17 C r-SI 4.46E+OO 2.63E+O l 8.34E+Ol u FH OFS-S 428363004 7/18/20 1 7 Cs-1 34 -1.67E+OO 4.36E+OO 1.34E+O l u Fl-I OFS-S 428363004 7/18/20 1 7 Cs-137 l.OO E+O I 4.68E+OO 1.6 1 E+O I u FH OFS-S 428363004 7/18/20 1 7 Fe-S9 -1.05E+O l 9.0 I E+OO 2.53E+O l u FH OFS-S 428363004 7/18/20 1 7 1-131 -1.48E+OO 5.25E+OO l.76 E+OI u D-47 Donald C. Cook Nuclear Plant Annual Radiological Envi r onmental Operat in g Report 201 7 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATI ON LSN DAT E NUCLID E (pCi/k g) (pCi/kg) (pCi/kg) FH OFS-S 428363004 7/18/2017 K-40 2.98 E+03 2.40E+02 l.26 E+02 FH OFS-S 428363004 7/1 8/2017 La-1 40 -9.07 E+OO 7.82 E+OO l.98 E+O I u FH OFS-S 428363004 7/1 8/2017 Mn-54 -2.53 E+OO 3.00E+OO 8.lS E+OO u FH OFS-S 428363004 7/18/2017 N b-95 -5.25E+OO 4.16 E+OO 1.09E+O I u FH OFS-S 428363004 7/18/2017 Ru-I 03 l.37 E+OO 3.48E+OO 1.20 E+O l u FH OFS-S 428363004 7/18/20 1 7 Ru-I 0 6 l.99E+O I 2.66 E+OI 9.3 9 E+O I u FH OFS-S 42836300 4 7/18/201 7 S b-1 24 -1.4 2E+O I 7.81 E+OO O.OOE+OO u FH OFS-S 428363004 7/1 8/2017 S b-1 25 2.3 IE+OO 8.48 E+OO 2.93E+OI u FH OFS-S 428363004 7/1 8/20 1 7 Se-75 -2.04E+OO 4.34 E+OO 1.21E+O I u FH OFS-S 428363004 7/18/2017 T h-228 l.90E+O I 8.62E+OO l.95E+O I u FH OFS-S 428363004 7/18/20 17 Z n-65 -3.38E-O I 9.78 E+OO 3.29E+O I u FH OFS-S 428363004 7/1 8/2017 Z r-95 -5.70E+OO 7.98 E+OO 2.37E+O l u FH OFS-N 4320 3700 1 8/30/2017 Ac-228 -1.90E+O l 1.13 E+OI 2.98E+O I u FH OFS-N 432037001 8/30/20 1 7 Ag-1 08 m 3.59E-O I l.57 E+OO 5.21E+OO u FH OFS-N 432037001 8/3 0/2017 A g-l l Om 5.59 E-0 1 2.8 1 E+OO 8.61E+OO u FH OFS-N 432037001 8/3 0/2017 Ba-1 40 8.56E+OO 1.I SE+O I 3.88E+OI u FH OFS-N 43203700 1 8/30/2017 Be-7 -2.35E+O l 1.94 E+O I 5.47E+O I u FH OFS-N 432037001 8/30/2017 Ce-14 1 -3.56E+OO 3.64E+OO 1.04 E+OI u FH OFS-N 432037001 8/30/20 1 7 Ce-1 44 -1.58E+O I 1.29 E+OI 3.53E+OI u FH OFS-N 43203700 1 8/3 0/2017 Co-57 1.1 4E+OO l.68 E+OO 5.3 0 E+OO u FH OFS-N 432037001 8/30/20 1 7 Co-58 -2.92E-0 2 2.30E+OO 7.82E+OO u FH OFS-N 43203700 1 8/3 0/2017 Co-60 l.23E+OO 2.69 E+OO 8.34 E+OO u FH OFS-N 43203700 1 8/30/20 1 7 C r-51 4.Sl E+OO l.84 E+OI 6.19 E+Ol u FH OFS-N 43203700 1 8/3 0/20 17 Cs-1 34 1.25E+OO 2.58 E+OO 7.7 1 E+OO u FH OFS-N 43203700 1 8/30/2017 Cs-1 37 8.82 E+OO 3.5 3E+O O 1.lO E+OI u FH OFS-N 43203700 1 8/30/20 17 Fe-59 2.90E+OO 5.07 E+OO l.77 E+OI u FH OFS-N 432037001 8/30/2017 1-1 3 1 -6.54E+OO 4.47E+OO l.25E+OI u FH OFS-N 432037001 8/30/2017 K-40 3.44 E+03 2.17E+02 7.SOE+O l FH OFS-N 43203700 1 8/30/20 17 La-1 40 -2.42E+O O 3.57 E+OO 1.02E+O I u FH OFS-N 43203700 1 8/30/2017 Mn-54 *3.47 E+OO 2.67 E+OO 7.81E+OO u FH OFS-N 432037001 8/30/2017 Nb-95 2.1 9E+OO 2.66E+OO 8.51E+OO u FH OFS-N 43203700 1 8/30/2017 Ru-103 7.66E-Ol 2.33E+OO 7.73E+OO u FH OFS-N 43203700 1 8/3 0/20 17 Ru-106 5.23E+O l 2.92E+O l 6.22 E+O I u FH OFS-N 4 3203700 1 8/30/2017 Sb-124 5.96E+OO 4.05E+OO l.60 E+O l u FH OFS-N 432037001 8/30/2017 S b-1 25 -1.92E+O O 6.26E+OO 1.77E+O l u FH OFS-N 43 2 037001 8/30/2017 Se-75 -1.1 IE+OO 2.55E+OO 8.29 E+OO u FH OFS-N 4320 3 7001 8/30/2017 T h-228 l.92E-01 4.54E+OO l.19 E+O I u FH OFS-N 4 3203700 1 8/30/2017 Z n-65 9.93 E+OO 6.98E+OO 2.42E+Ol u FH OFS-N 43203700 1 8/30/20 17 Z r-95 -3.95E+OO 4.3 1 E+OO 1.2 1 E+OI u FH ONS-N 432037002 8/30/2017 Ac-228 -9.40E+OO 1.1 I E+OI 3.67E+OI u F H ONS-N 432037002 8/30/20 1 7 A g-10 8m l. lS E+OO l.70E+OO 5.81E+OO u FH ONS-N 432037002 8/3 0/20 1 7 Ag-I !Om -2.80E+OO 3.SlE+OO l.Ol E+OI u FH ONS-N 432037002 8/30/20 1 7 Ba-1 40 -3.30E+O l 1.46 E+Ol 3.l3 E+Ol u FH ONS-N 432037002 8/30/2017 Be-7 3.04E+OO 1.6 2E+O l 5.41E+O l u FH ONS-N 432037002 8/30/20 17 Ce-1 4 1 -2.16 E+OO 3.67E+OO 1.12 E+OI u FH ONS-N 432037002 8/30/20 1 7 Ce-1 44 8.04 E+OO l.23E+O l 3.99E+OI u FH ONS-N 432037002 8/3 0/2017 Co-57 1.28E+OO l.64E+OO 5.32 E+OO u FH ONS-N 432037002 8/30/2017 Co-58 -7.08E-O I 2.66E+OO 8.30E+OO u FH ONS-N 4 32037002 8/30/20 1 7 Co-60 5.28 E+OO 2.99E+OO l.0 4E+OI u FH ONS-N 432037002 8/30/20 1 7 C r-51 -2.67E+OO l.96 E+O l 6.59E+Ol u D-48 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 S A MPLE EN D C ON C STD.DE V. MD C FLA G S T YPE S T ATION LS N DA T E NUCL ID E (p Ci/kg) (p Ci/kg) (pCi/kg) FH ONS-N 432037002 8/30/20 1 7 Cs-1 34 8.49E+OO 3.76E+O O 9.24E+O O u FH ONS-N 432037002 8/30/20 1 7 Cs-1 37 l.98E+O l 4.70E+O O 8.06E+OO M FH ONS-N 432037002 8/30/20 1 7 Fe-59 -5.89E-Ol 6.0IE+OO 2.00E+Ol u FH ONS-N 432037002 8/30/20 1 7 1-13 1 5.75E+OO 4.43E+OO l.52E+Ol u FH ONS-N 432037002 8/30/2 01 7 K-4 0 3.44E+03 2.1 7E+02 7.0IE+Ol FH ONS-N 432037002 8/30/20 1 7 La-140 8.8 1 E-O I 3.1 2E+OO I.06E+O I u FH ONS-N 432037002 8/30/20 1 7 Mn-54 2.0 6E+OO 2.25E+OO 6.97E+O O u FH ONS-N 432037002 8/30/20 1 7 N b-95 -2.IO E-0 1 2.54E+O O 8.IOE+O O u FH ONS-N 432037002 8/30/20 17 R u-1 03 -6.7 0 E-02 2. I OE+OO 6.89E+OO u FH ONS-N 432037002 8/30/20 17 R u-106 -2.44E+O l 2.03E+O I 5.7 1 E+O l u FH ONS-N 432037002 8/30/20 1 7 Sb-1 24 7.3 9E+OO 5.22E+OO 1.94E+O I u F H ONS-N 432037002 8/30/2 017 Sb-125 3.56E+OO 5.30E+O O 1.82E+O I u FH ONS-N 432037002 8/30/20 1 7 Se-75 l.63E+OO 3.1 8E+OO 9.97E+OO u FH ONS-N 432037002 8/30/20 1 7 T h-228 -5.48E+OO 4.22E+OO I.27E+O I u F H ONS-N 432037002 8/30/20 17 Zn-65 -7.99E+OO 6.42E+OO I.87E+O I u F H ONS-N 432037002 8/30/20 1 7 Zr-95 -1.0 6E+OO 4.88E+OO 1.54E+O I u FH ONS-S 432037003 8/30/20 1 7 Ac-228 -5.37E+OO l.29E+O l 4.2 1 E+O l u F H ONS-S 432037003 8/30/20 1 7 Ag-108 m 1.73E-O I 2.03E+OO 6.05E+O O u FH ONS-S 432037003 8/30/20 1 7 Ag-ll O m -3.20E+OO 3.82E+OO l.16E+Ol u FH ONS-S 432037003 8/30/20 1 7 Ba-1 40 -4.1 8E+OO l .20E+O I 3.78E+Ol u FH ONS-S 432037003 8/30/2 01 7 Be-7 -5.3 1 E+OO 2.04E+O l 6.57E+O l u FH ONS-S 432037003 8/30/2 01 7 Ce-1 41 -3.25E+OO 3.78E+OO 1.15E+Ol u FH ONS-S 432037003 8/30/20 1 7 Ce-1 44 -7.25E+OO l.20E+O l 3.76E+Ol u FH ONS-S 432037003 8/30/20 1 7 Co-57 l.99E+OO 2.20E+OO 4.50E+O O u FH ONS-S 432037003 8/30/2 01 7 Co-58 4.1 6E+OO 3.64E+OO 1.15E+O l u FH ONS-S 432037003 8/30/20 1 7 Co-60 -3.72E+OO 3.25E+O O 8.62E+O O u FH ONS-S 432037003 8/30/20 1 7 Cr-51 -4.00 E+OI 2.1 8E+O l 5.89E+Ol u FH ONS-S 432037003 8/30/20 17 Cs-134 -l.59E+OO 2.93E+OO 9.39E+OO u FH ONS-S 432037003 8/30/2 01 7 Cs-137 1.88E+Ol 6.66E+OO 9.69E+O O M FH ONS-S 432037003 8/30/20 1 7 Fe-59 4.26E+OO 6.56E+OO 2.24E+O l u FH ONS-S 432037003 8/30/20 1 7 1-1 3 1 1.9 1 E+OO 4.93E+OO l.68E+O I u FH ONS-S 432037003 8/30/2 01 7 K-40 3.45E+03 2.1 9E+02 9.03E+OI FH ONS-S 432037003 8/30/20 1 7 La-1 40 1.20E+OI 5.34E+OO I.97E+O l u FH ONS-S 432037003 8/30/20 17 M n-54 3.69E-O I 2.80E+OO 9.50E+OO u FH ONS-S 432037003 8/30/2 01 7 Nb-95 2.88E+OO 2.99E+OO 9.59E+OO u FH ONS-S 432037003 8/30/20 17 R u-1 03 -6.25£-0 1 2.70E+OO 8.69E+O O u FH ONS-S 432037003 8/30/2 01 7 R u-1 06 -3.08E+O l 2.36E+O l 6.33E+O I u FH ONS-S 432037003 8/30/2 01 7 Sb-1 24 -I.09E+O l 5.97E+OO I.07E+O I u FH ONS-S 432037003 8/30/20 1 7 Sb-1 25 4.77E+OO 6.48E+OO 2.21E+O I u FH ONS-S 432037003 8/30/20 1 7 Se-75 9.5 1 E-O I 2.74E+OO 9.5 1 E+O O u FH ONS-S 43203 7 003 8/30/20 17 T h-228 I.O I E+OI 6.86E+OO l.49E+OI u FH ONS-S 43203 7 003 8/30/20 1 7 Zn-65 1.IO E+O l 6.75E+O O 2.20E+Ol u FH ONS-S 432037003 8/30/20 1 7 Zr-95 -5.91E+OO 5.1 7E+OO I.54E+O I u FH OFS-S 432037004 8/30/2 01 7 Ac-228 I.9 1 E+O I 2.17E+O l 4.86E+OI u FH OFS-S 432037004 8/30/20 1 7 Ag-1 08 m 8.0 7E-02 2.1 9E+OO 7.23E+OO u FH OFS-S 432037004 8/30/20 1 7 Ag-I !Om l.98E+OO 4.48E+OO l.5 5 E+OI u FH OFS-S 432037004 8/30/2 01 7 Ba-1 40 8.95E+OO 2.32E+O I 7.70E+O I u FH OFS-S 432037004 8/30/20 1 7 Be-7 -4.05E+O I 2.82E+O I 7.60E+OI u FH OFS-S 4320370 0 4 8/30/20 1 7 Ce-1 41 -8.4 4E+OO 5.30E+O O l.43E+OI u FH OFS-S 432037004 8/30/20 1 7 Ce-1 44 -6.1 4E+OO 1.32E+O I 4.09E+OI u D-49 Donald C. Cook Nuclear Plant Annual Radiological Envi r onmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DAT E NUCLIDE (pCi/kg) (pCi/kg) (pCi/k g) FH OFS-S 432037004 8/30/20 1 7 Co-57 2.51E+OO 1.8 2E+OO 5.92E+OO u FH OFS-S 432037004 8/30/2017 Co-58 5.31E+OO 4.52 E+OO 7.94E+OO u FH OFS-S 432037004 8/30/20 1 7 Co-60 7.42E+OO 4.52E+OO l.59 E+OI u FH OFS-S 432037004 8/30/20 1 7 C r-5 1 -7.54E+OO 2.5 8E+O I 8.48E+OI u FH OFS-S 432037004 8/30/20 17 Cs-134 -3.3 1 E+OO 3.64E+OO 1.1 I E+OI u FH OFS-S 432037004 8/30/20 17 Cs-1 37 J.6 1 E+O I 7.09 E+OO 9.62E+OO M FH OFS-S 432037004 8/30/20 1 7 Fe-59 -1.78 E+OO 9.08E+OO 2.93E+OI u FH OFS-S 432037004 8/30/2017 1-13 1 -6.89 E+OO 8.15E+OO 2.50E+O I u FH OFS-S 432037004 8/30/2017 K-40 2.74 E+03 l.98E+02 l.10 E+02 FH OFS-S 43203 70 04 8/30/20 1 7 La-1 40 -3.24E+OO 6.57E+OO 2.02 E+O I u FH OFS-S 432037004 8/30/20 1 7 Mn-54 3.47E+OO 3.03E+OO J.08 E+O I u FH OFS-S 432037004 8/30/20 1 7 Nb-95 7.l 4E+OO 3.65E+OO l.29E+OI u FH OFS-S 432037004 8/30/20 17 R u-1 03 1.1 9E+O O 3.26E+OO l.09 E+OI u FH OFS-S 432037004 8/30/20 1 7 Ru-1 06 l.7 8E+O I 2.83E+OI 9.45E+OI u FH OFS-S 432037004 8/30/2017 S b-124 l.30E+OO 8.47E+OO 2.89 E+O I u FH OFS-S 432037004 8/30/20 17 S b-1 25 l.07 E+O O 6.35E+OO 2.1 2E+OI u FH OFS-S 432037004 8/30/20 1 7 Se-7 5 -l.l OE-0 1 3.22E+OO l.09E+OI u FH OFS-S 432037004 8/30/20 1 7 Th-228 -8.4 8E+OO 5.27E+OO l.56E+O I u FH OFS-S 432037004 8/30/20 1 7 Z n-65 -4.3 1£+00 8.18£+00 2.53£+0 1 u FH OFS-S 432037004 8/30/2017 Z r-95 -4.57£+00 6.87£+00 2.18£+0 1 u D-50 Don a ld C. Cook Nuclear Plan t Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg) SE SL-2 42087700 1 4/17/20 17 Ac-228 2.45E+02 8.72E+Ol 8.55E+OI SE SL-2 42087700 1 4/17/20 17 Ag-1 08m l.02 E+Ol 7.50E+OO 2.43E+O I u SE SL-2 42087700 1 4/17/20 1 7 Ag-ll Om -8.93E-0 1 8.42E+OO 2.91E+OI u SE SL-2 42087700 1 4/17/20 17 Ba-1 40 4.72E+OO 2.86£+0 1 9.82E+O I u SE SL-2 42087700 1 4/17/2017 Be-7 6.05E+OI 6.06£+0 1 2.1 6£+02 u SE SL-2 42087700 1 4/17/20 17 Ce-1 4 1 5.53E+OO 9.26E+OO 3.49£+0 1 u SE SL-2 42087700 1 4/17/20 17 Ce-1 44 -4.33E+Ol 3.83E+O I l.32E+02 u SE SL-2 420877001 4/17/20 17 Co-57 3.29E+OO 4.76E+OO 1.81 E+O I u SE SL-2 420877001 4/17/20 17 Co-58 4.40E-O I 6.08E+OO 2.15E+O l u SE SL-2 420877001 4/17/20 1 7 Co-60 1.17 E+OI 8.20E+OO 3.03E+O l u SE SL-2 42087700 1 4/17/20 1 7 C r-51 3.63E+O I 5.64£+01 2.04E+02 u SE SL-2 42087700 1 4/17/20 1 7 Cs-1 34 1.47E+OI 1.0I E+O I 3.66E+O I u SE SL-2 42087700 1 4/17/20 17 Cs-137 -I .08E+OO 8.63E+OO 2.85E+O I u SE SL-2 42087700 1 4/17/20 17 Fe-59 4.04E+OO l.57E+O I 5.48E+O I u SE SL-2 42087700 1 4/17/20 1 7 1-1 3 1 -1.20 E+O I 8.89E+OO 2.7IE+O I u SE SL-2 42087700 1 4/17/20 17 K-40 5.18E+03 3.56E+02 2.14 E+02 SE SL-2 42087700 1 4/17/2017 La-1 40 -2.29E+Ol 1.05E+O I 1.64E+O I u SE SL-2 42087700 1 4/17/20 17 Mn-54 -7.32E+OO 7.55E+OO 2.38 E+O I u SE SL-2 42087700 1 4/17/20 17 Nb-95 9.77E+OO 8.79E+OO 3.21E+O I u SE SL-2 42087700 1 4/17/20 1 7 Ru-103 4.06E+OO 7.34E+OO 2.58E+O I u SE SL-2 42087700 1 4/17/20 17 Ru-1 06 6.62E+O I 6.68E+O I 2.36E+02 u SE SL-2 42087700 1 4/17/20 1 7 Sb-1 24 9.1 5E+OO 1.21 E+O I 4.51E+OI u SE SL-2 42087700 1 4/1 7/20 17 Sb-1 25 5.72E+OI 2.2 1£+01 7.28E+O l u SE SL-2 42087700 1 4/17/20 17 Se-75 l.82E+OO 8.73£+00 3.15E+O I u SE SL-2 42087700 1 4/17/2 0 1 7 Th-228 l.87E+02 3.47E+O I 4.66E+O I SE SL-2 42087700 1 4/1 7/20 1 7 Zn-65 3.64E+O I 2.52£+0 1 6.34E+O I u SE SL-2 42087700 1 4/1 7/20 17 Z r-95 2.82E+OI l.64E+O I 5.68 E+O I u SE SL-3 420877002 4/17/20 17 Ac-228 l.33E+02 6.9 1 E+OI l.53E+02 u SE SL-3 420877002 4/17/20 17 Ag-108m 7.96E+OO 6.36E+OO 2.30E+O I u SE SL-3 420877002 4/17/20 17 Ag-I I O m -1.05 E+O I 9.66E+OO 2.96E+O I u SE SL-3 420877002 4/17/20 1 7 Ba-1 40 -5.0 9E+O I 2.82 E+O I 7.43 E+O I u SE SL-3 420877002 4/17/20 17 Be-7 1.18 E+02 5.97 E+O I 2.1 0E+02 u SE SL-3 420877002 4/17/20 17 Ce-1 4 1 -9.83 E+OO 9.1 7E+OO 2.96E+OI u SE SL-3 420877002 4/1 7/20 1 7 Ce-1 44 -3.08 E+O I 3.55E+O I 1.18 E+02 u SE SL-3 420877002 4/17/20 17 Co-57 2.50E+OO 4.47 E+OO I.62 E+O I u SE SL-3 420877002 4/17/20 17 Co-58 1.82 E+OO 5.22E+OO l.89E+O I u SE SL-3 420877002 4/17/2017 Co-60 -6.1 6E+OO 8.7 IE+OO 2.6 7 E+O I u SE SL-3 420877002 4/17/20 1 7 C r-5 1 -9.08E+O I 5.23E+O I 1.4 8E+02 u SE SL-3 420877002 4/17/20 17 Cs-1 34 -1.66E+O I 8.87 E+OO 2.0 7 E+O I u SE SL-3 420877002 4/17/2017 Cs-1 37 -3.48E+OO 7.45£+00 2.39E+O I u SE SL-3 420877002 4/17/2017 Fe-59 -1.02E+OI 1.66 E+O I 5.34£+0 1 u SE SL-3 420877002 4/1 7/20 17 1-1 31 2.78E+OO 6.67E+OO 2.43E+O I u SE SL-3 420877002 4/17/20 17 K-40 6.07E+03 3.6 1 E+02 2.44E+02 SE SL-3 420877002 4/17/20 1 7 La-1 40 3.63E+OO 7.54E+OO 2.38E+OI u SE SL-3 420877002 4/1 7/20 1 7 Mn-54 7.9 1 E+OO 6.65E+OO 2.45E+O I u SE SL-3 420877002 4/17/20 17 Nb-95 7.45E+OO 6.72E+OO 2.37E+O I u SE SL-3 420877002 4/17/20 1 7 Ru-I 03 -6.3 0 E+OO 6.46E+OO 2.03E+O I u SE SL-3 420877002 4/17/20 17 R u-1 06 4.65E+O I 6.60E+O I 2.32E+02 u SE SL-3 420877002 4/1 7/20 1 7 Sb-1 24 -2.4 9E+OI l.89E+O I 4.07E+O I u SE SL-3 420877002 4/1 7/20 1 7 Sb-1 25 3.1 6E+OI I .98E+OI 7.IO E+O I u D-5 1 Donald C. Cook Nuclear Plant Annual Radiological En v ironment a l Operatin g Report 2017 S AMPL E E ND CONC ST D.D E V. MD C F L AGS TYPE STA TION L S N DAT E NU CL ID E (p Ci/kg) (pC i/k g) (p C i/kg) SE SL-3 420877002 4/17/20 1 7 Se-75 7.1 8E+OO 7.32E+OO 2.74E+OI u SE SL-3 420877002 4/17/20 17 T h-228 l.27E+02 2.85E+O I 4.06E+Ol SE SL-3 4208 7 7002 4/17/20 1 7 Z n-65 l.25E+O l 2.05E+OI 6.46E+OI u SE SL-3 420877002 4/1 7/20 1 7 Zr-95 -6. I SE+OO I.I OE+O I 3.39E+OI u SE SL-2 43576 1 00 1 10/2 0/20 1 7 Ac-228 l.52E+02 7.2 1 E+OI 2.28E+02 u SE SL-2 43576 1 00 1 1 0/2 0/20 1 7 Ag-1 08 m l.29E+O O 7.0IE+O O 2.43E+OI u SE SL-2 43576 1 001 1 0/2 0/20 1 7 Ag-I I Orn l.50E+OI l.47E+O I 5.65E+OI u SE SL-2 43576 1 001 1 0/2 0/20 1 7 Ba-1 40 5.94E+O I l.1 7E+02 4.26E+02 u SE SL-2 43576 1 001 1 0/20/20 1 7 Be-7 l.06E+02 8.59E+O I 3.33E+02 u SE SL-2 43576 1 001 1 0/2 0/20 1 7 Ce-1 4 1 l.03E+O I 2.07E+O l 7.60E+OI u SE SL-2 43576 1 00 1 10/2 0/2 01 7 Ce-1 44 -3.94E+O I 4.7 0 E+O I l.55E+02 u SE SL-2 43576 1 00 1 10/2 0/2 01 7 Co-57 -4.90E+OO 6.1 9E+O O 2.0 8E+Ol u SE SL-2 43576 1 00 1 1 0/2 0/20 1 7 Co-58 4.78E+OO 9.89E+OO 3.54E+Ol u SE SL-2 43576 1 001 1 0/2 0/20 1 7 Co-60 8.20E+OO l.2 1 E+O I 4.45E+OI u SE SL-2 43576 1 00 1 1 0/20/20 1 7 C r-5 1 -7.99E+O I 1.23E+02 4.2 1 E+02 u SE SL-2 43576 1 001 1 0/2 0/20 1 7 Cs-134 -6.64E+OO I.OOE+O I 3.02E+Ol u SE SL-2 43576 1 001 1 0/2 0/20 1 7 Cs-137 1.1 4E+OI l.10E+O I 4.06E+OI u SE SL-2 43576 1 001 I 0/2 0/2 01 7 Fe-59 -3.54E+O O 2.0 6E+O l 6.80E+Ol u SE SL-2 43576 1 00 1 1 0/20/20 1 7 1-13 1 -5.08E+O I 7.69E+O I 2.59E+02 u SE SL-2 43576 1 001 1 0/20/20 1 7 K-40 5.1 6E+03 5.59E+02 2.88E+02 SE SL-2 43576 1 00 1 1 0/20/20 1 7 La-1 40 l.47E+O I 5.4 1 E+O I l.85E+02 u SE SL-2 43576 1 00 1 I 0/20/20 17 M n-54 5.22E+OO l.24E+O I 4.27E+Ol u SE SL-2 43576 1 001 1 0/2 0/20 1 7 Nb-95 2.1 9E+OO l.34E+O l 4.55E+Ol u SE SL-2 43576 1 00 1 10/2 0/20 17 R u-1 03 -7.77E+OO l.43E+O l 4.70 E+O l u SE SL-2 435 7 6 1 00 1 1 0/20/2 017 R u-1 06 5.72E+O I 8.55E+O I 3. 1 3E+02 u SE SL-2 43576 1 00 1 1 0/2 0/20 1 7 Sb-1 24 7.39E-0 2 2.13E+O l 6.90E+OI u SE SL-2 43576 1 00 1 1 0/2 0/20 1 7 Sb-1 25 -1.35E+O I 2.73E+O I 9.1 9E+O I u SE SL-2 43576 1 001 1 0/20/20 1 7 Se-75 -2.77E+O I l.7 1 E+O I 4.27E+OI u SE SL-2 43576 1 001 1 0/20/20 17 T h-228 l.87E+02 6.32E+O I I .03E+02 U I SE SL-2 43576 1 00 1 1 0/20/20 1 7 Z n-65 5.06E+O l 2.7 1 E+O I I .03E+02 u SE SL-2 43576 1 001 1 0/2 0/20 1 7 Zr-95 l.65E+OO 2.39E+OI 8.0 5 E+O I u SE SL-3 43576 1 002 1 0/2 0/20 1 7 Ac-228 8.49E+OI 6.89E+OI l.7 5E+02 u SE SL-3 43576 1 002 1 0/2 0/20 1 7 Ag-1 08m 4.7 4E+O O 6.2 1 E+O O 2.35E+O I u S E SL-3 43576 1 002 1 0/2 0/20 1 7 Ag-I I Orn -3.2 1 E-0 1 I.II E+O I 3.67E+O l u SE SL-3 43576 1 002 1 0/2 0/20 1 7 Ba-1 40 7.41E+O l 1.0 I E+02 3.78E+02 u SE SL-3 43576 1 002 1 0/20/20 1 7 Be-7 l.28E+0 2 9.08E+Ol 3.44E+02 u SE SL-3 43576 1 002 1 0/2 0/20 1 7 Ce-1 41 -l.98E+O I l.57E+O l 4.9 1 E+O I u SE SL-3 43576 1 002 10/2 0/2 01 7 Ce-1 44 l.33E+O l 3.66E+O I I .37E+02 u SE SL-3 43576 1 002 1 0/2 0/20 1 7 Co-57 l.66E+OO 4.1 8E+OO l.5 9E+O I u SE SL-3 43576 1 002 10/20/20 1 7 Co-58 -1.77E+O I l.22E+O I 2.22E+O I u SE SL-3 43576 1 002 1 0/2 0/20 1 7 Co-60 l.39E+O I l.07E+O I 4.08E+OI u SE SL-3 43576 1 002 1 0/20/20 1 7 C r-5 1 -l.72E+02 l.29E+02 3.60E+02 u SE SL-3 43576 1 002 1 0/2 0/20 1 7 Cs-1 34 5.70E+O O 9.42E+OO 3.1 2E+O I u SE SL-3 43576 1 002 1 0/2 0/20 1 7 Cs-1 37 7.97E+O O 8.77E+O O 3.25E+O I u SE SL-3 43576 1 002 I 0/2 0/20 1 7 Fe-59 -l.78E+O I 2.4 1 E+OI 7.32E+O I u SE SL-3 43576 1 002 I 0/2 0/20 1 7 1-1 31 4.57E+O I 6.92E+O I 2.42E+02 u SE SL-3 43576 1 002 I 0/20/20 1 7 K-40 6.59E+03 5.50E+02 l.52E+02 SE SL-3 43576 1 002 1 0/20/20 1 7 La-1 40 3.0IE+O I 3.97E+OI l.48E+02 u SE SL-3 43576 1 002 1 0/2 0/20 1 7 Mn-54 4.34E+O O l.06E+O I 3.67E+O I u SE SL-3 43576 1 002 I 0/20/20 17 N b-95 -3.77E+O O l.39E+O l 4.55E+O l u D-5 2 Don a ld C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE E ND CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pC i/kg) (pCi/kg) (pCi/kg) S E SL-3 435761002 10/20/2017 Ru-1 03 7.0 I E+OO l.1 8E+OI 4.38E+O l u SE SL-3 435761002 10/20/20 1 7 Ru-I 06 1.19E+02 8.6 1 E+O I 3.2 1 E+0 2 u S E SL-3 43576 1 002 1 0/20/20 17 Sb-124 -4.67E+OO 2.20E+OI 6.75E+O l u S E SL-3 43576 1 002 10/20/20 1 7 Sb-125 -2.18E+Ol 1.96£+0 1 6.05£+01 u SE SL-3 435761002 10/20/20 17 Se-7 5 -1.36E+OI l.06E+Ol 3.05£+0) u S E SL-3 435761002 10/20/20 17 Th-228 1.88£+02 3.42 E+OI 3.98E+OI S E SL-3 435761002 10/20/20 1 7 Zn-65 3.03E+OI 2.41 E+O l 8.52E+Ol u S E SL-3 435761002 10/20/20 17 Zr-95 -2.93E+Ol 2.08E+O l 5.22E+Ol u D-53 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE E ND CONC ST D.D EV. MDC FLAGS TYPE STATION LSN DAT E NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg) TF ONS-G 43 1 645008 8/25/2017 Ac-228 -I.31 E+O I 2.06E+O I 6.75E+O I u TF ONS-G 43 1 645008 8/25/20 1 7 A g-10 8 m l.36E+OO 4.43E+OO l.50E+O I u TF ONS-G 43 1 645008 8/25/20 1 7 Ag-I I Om -4. IO E+OO 6.79E+OO J.99 E+O I u TF ONS-G 43 1 645008 8/25/20 1 7 Ba-1 40 -2.77 E+OO 2.4 1 E+O I 7.83E+O I u TF ONS-G 43 1 645008 8/25/20 1 7 Be-7 6.82 E+O I 4.43E+OI l.51 E+02 u TF ONS-G 43 1 645008 8/25/20 1 7 Ce-1 41 -2.00 E+O l 9.09E+OO 2.00E+OI u TF ONS-G 43 1 645008 8/25/20 1 7 Ce-1 44 -1.23E+O I 2.59E+O I 7.9 7 E+O I u TF ONS-G 431645008 8/25/2 017 Co-5 7 -4.00 E-01 3.39E+OO 1.07 E+OI u TF ONS-G 43 1 645008 8/25/2017 Co-58 -3.33E-OI 4.72E+OO 1.49 E+O I u TF ONS-G 43 1 645008 8/25/2017 Co-60 3.67 E+OO 5.42 E+OO l.91 E+O I u TF ONS-G 43 1 645008 8/25/2017 C r-5 1 l.84E+O I 3.88E+OI l.34E+02 u TF ONS-G 43 1 645008 8/25/2017 Cs-134 -8.54 E-01 5.28E+OO l.66 E+O I u TF ONS-G 43 1 645008 8/25/2017 Cs-137 l.62E+OO 4.92 E+OO l.64 E+O l u TF ONS-G 43 1 645008 8/25/2017 Fe-59 l.17 E+OI 9.22E+OO 3.35E+O I u TF ONS-G 431645008 8/25/2017 1-131 1.12 E+Ol 8.04E+OO 2.75E+O I u TF ONS-G 431645008 8/25/2017 K-40 I.OOE+03 l.58E+02 l.94E+02 TF ONS-G 43 1 645008 8/25/2017 La-1 40 -8.74E+OO 6.98E+OO l.6 6E+O I u TF ONS-G 431645008 8/25/2017 Mn-54 -1.0 4E+OO 5.48 E+OO l.51 E+O I u TF ONS-G 431645008 8/25/2017 Nb-95 l.87E+OO 5.1 9E+OO 1.71 E+O I u TF ONS-G 43 1 645008 8/25/2017 Ru-10 3 -8.26E+OO 4.76E+OO l.20E+OI u TF ONS-G 43 1 645008 8/2 5/20 1 7 Ru-106 4.26E+O l 3.99E+O I l.3 3E+02 u TF ONS-G 43 1 645008 8/25/2 017 Sb-1 24 -7.02E+OO 9.95E+OO 2.76E+O I u TF ONS-G 43 1 645008 8/25/2017 Sb-1 25 -7.96E-0 1 l.28 E+O I 4.23E+O l u TF ONS-G 431645008 8/25/2017 Se-75 -1.00 E+O l 5.99E+OO l.70 E+OI u TF ONS-G 431645008 8/25/2017 Th-228 -1.6 1 E+OI 9.84E+OO 2.68E+OI u TF ONS-G 431645008 8/25/20 1 7 Z n-65 -7.47E+OO l.02E+O I 2.80E+O I u TF ONS-G 43 1 645008 8/25/2017 Z r-95 3.87 E+Ol 1.74E+O I 3.04E+OI Ul TF ONS-G 431645009 8/25/2017 Ac-228 -2.01 E+OI l.56E+O I 4.59E+O I u TF ONS-G 43 1 645009 8/25/2017 Ag-1 08m 2.27E+OO 2.7 6E+OO 8.1 3E+OO u TF ONS-G 43 1 645009 8/25/2017 Ag-I I Om 3.52E+OO 4.05 E+OO l .42 E+Ol u TF ONS-G 431645009 8/25/2017 Ba-1 40 -1.65E+O l 1.2 3E+OI 3.3 1 E+Ol u TF ONS-G 43 1 645009 8/25/2017 B e-7 3.45 E+O I 2.68E+O I 9.04 E+OI u TF ONS-G 43 1 645009 8/25/20 1 7 Ce-141 -2.44E+OO 4.00E+OO 1.18 E+O l u TF ONS-G 431645009 8/25/2017 Ce-1 44 -1.45E+O I I.3 1 E+O I 3.90E+O I u TF ONS-G 43 1 645009 8/25/2017 Co-57 2.86 E+OO l.90E+OO 5.49E+OO u TF ONS-G 43 1 645009 8/25/2017 Co-58 6.55 E+OO 3.1 2E+OO l.09 E+O I u TF ONS-G 43 1 645009 8/25/20 1 7 Co-60 l.96E+OO 3.00E+OO l.04 E+O l u TF ONS-G 43 1 645009 8/25/2017 C r-5 1 -6.36E+OO 2.35E+O I 7.82E+O I u TF ONS-G 43 1 645009 8/25/2017 Cs-1 34 2.43E+OO 3.00E+OO l.0 6E+OI u TF ONS-G 43 1 645009 8/25/2017 Cs-1 37 -6.3 I E+OO 3.1 4E+OO 6.60E+OO u TF ONS-G 43 1 645009 8/25/2017 Fe-59 2.75 E+O I l.20 E+Ol 2.80E+OI u TF ONS-G 43 1 645009 8/25/20 1 7 1-13 1 1.76E-Ol 4.1 6E+OO I .40 E+O I u TF ONS-G 43 1 645009 8/25/20 1 7 K-40 3.1 6E+02 l.03E+02 8.67E+OI TF ONS-G 431645009 8/25/20 1 7 La-1 40 4.96E+OO 4.59E+OO l .69E+O I u TF ONS-G 431645009 8/25/2017 Mn-54 -9.72E-OI 2.88 E+OO 9.37E+OO u TF ONS-G 431645009 8/25/2017 Nb-95 -3.28 E+OO 2.99E+OO 8.90 E+OO u TF ONS-G 431645009 8/25/20 1 7 R u-103 -l.1 7E+OO 2.92E+OO 9.24E+OO u TF ONS-G 43 1 645009 8/25/2017 Ru-1 06 -7.47E+OO 3.0 I E+OI 9.45 E+OI u TF ONS-G 431645009 8/25/2017 Sb-1 24 4.57 E+OO 4.2 1 E+OO I.68 E+O I u TF ONS-G 431645009 8/25/2017 Sb-1 25 4.49 E+OO 6.63E+OO 2.27 E+O I u D-54 Don a ld C. Cook Nuclear Plant Annual Radiolog i cal Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pC i/k g) (pCi/kg) (pCi/kg) TF ONS-G 431645009 8/25/20 1 7 Se-75 -4.60E-OI 2.87E+OO 9.75E+OO u TF ONS-G 4 316 45009 8/25/20 1 7 T h-2 28 -4.20E-O I 5.43E+OO l.65 E+OI u TF ONS-G 43 1 645009 8/25/20 1 7 Z n-65 -5.63E+OO 6.90E+OO 2.03E+Ol u TF ONS-G 43 1 645009 8/25/20 1 7 Zr-95 -3.1 7 E+OO 5.1 4E+OO l.64 E+Ol u TF OFS-G 43 1 6450 1 0 8/25/20 1 7 Ac-2 28 -3.2 1 E+OI 2.00E+O I 5.08E+OI u TF OFS-G 4316450 1 0 8/25/20 1 7 Ag-1 08m 4.9 1 E+OO 3.64E+OO l.24E+OI u TF OFS-G 43 1 6450 10 8/25/2017 Ag-I I Om -1.8 1 E+OO 5.82E+OO l.66E+O l u TF OFS-G 43 1 6450 10 8/25/20 1 7 Ba-1 40 -8.64E+OO l.67E+O I 5.1 8E+O l u TF OFS-G 4316450 10 8/25/20 17 Be-7 l.78E+02 6.65E+Ol l.03E+02 TF OFS-G 43 1 6450 10 8/25/20 1 7 Ce-141 -6.57E+OO 6.1 I E+OO l.59 E+O I u TF OFS-G 43 1 6450 10 8/25/20 1 7 Ce-144 -2.64E+O I 2.1 3E+O I 6.09E+O l u TF OFS-G 431645010 8/25/20 1 7 Co-57 1.12 E+OO 2.72E+OO 8.86E+OO u TF OFS-G 431645010 8/25/20 17 Co-58 -2.84E+OO 4.I OE+OO l.30E+O l u TF OFS-G 4316450 1 0 8/25/20 17 Co-60 -5.46E+OO 4.34E+OO 1.14 E+Ol u TF OFS-G 4316450 10 8/25/20 17 C r-51 2.1 2E+O I 3.38E+O l 1.16 E+02 u TF OFS-G 43 1 6450 1 0 8/25/20 17 Cs-134 -l.0 6E+Ol 5.39E+OO 1.04 E+Ol u TF OFS-G 43 1 6450 10 8/25/20 1 7 Cs-13 7 2.58E+OO 4.42E+OO 1.47 E+Ol u TF OFS-G 43 1 6450 1 0 8/25/20 1 7 Fe-59 -7.88E+OO 8.27E+OO 2.42E+O l u TF OFS-G 43 1 6450 1 0 8/25/20 1 7 1-13 I -8.07E+OO 5.52E+OO l.56 E+Ol u TF OFS-G 4316450 10 8/25/20 1 7 K-40 2.93E+03 2.1 3E+02 9.76E+OI TF OFS-G 4316450 10 8/25/20 1 7 La-1 40 3.1 3E+OO 6.07E+OO 2.0 7 E+OI u TF OFS-G 4316450 10 8/25/20 1 7 Mn-54 -1.44E+OO 4.47 E+OO l.48 E+O I u TF OFS-G 43 1 6450 10 8/25/20 1 7 N b-9 5 9.1 l E+OO 4.39E+OO 1.40 E+O I u TF OFS-G 431645010 8/25/20 1 7 Ru-103 8.80E-02 3.38E+OO 1.1 I E+O l u TF OFS-G 431645010 8/25/20 1 7 Ru-10 6 8.67E+OO 3.58E+O I 1.17 E+02 u TF OFS-G 43 1 6450 1 0 8/25/20 1 7 Sb-124 l.56E+O I 9.67E+OO 3.62E+O l u TF OFS-G 4316450 10 8/25/20 1 7 Sb-125 -3.62E+OO 8.93E+OO 2.86E+O l u TF OFS-G 431 6450 1 0 8/25/20 1 7 Se-75 -2.45E-02 4.40 E+OO l.50 E+O l u TF OFS-G 43 1 6450 10 8/25/20 1 7 Th-228 -7.64E+OO 7.65E+OO 2.35E+O l u TF OFS-G 43 1 6450 1 0 8/25/20 1 7 Zn-65 8.92E+OO 9.1 7E+OO 3.20E+O l u TF OFS-G 4316450 10 8/25/20 1 7 Zr-95 -7.52E+OO 8.47 E+O O 2.40E+O I u D-5 5 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operatin g Report 2017 SAMPLE E ND CONC STD.DEV. MDC FLAGS TYPE STATION LSN DAT E NUCLID E (pC i/kg) (pCi/kg) (pCi/kg) TV ONS3-V 424682001 6/2/2017 Ac-228 4.52 E+OI 2.39 E+OI 4.02E+OI U I TV ONS3-V 424682001 6/2/20 1 7 A g-1 08111 2.68 E+OO 2.1 8E+OO 7.2IE+OO u TV ONS3-V 42468200 1 6/2/20 1 7 Ag-11 0111 -3.22E+OO 3.76E+OO 1.1 2E+OI u TV ONS3-V 424682001 6/2/20 1 7 Ba-140 -8.29E+OO 1.0IE+OI 3.1 2E+OI u TV ONS3-V 424682001 6/2/20 1 7 Be-7 2.94 E+02 4.87E+OI 6.IOE+O I TV ONS3-V 424682001 6/2/2017 Ce-1 41 2.84E-OI 3.56 E+OO 1.03E+Ol u TV ONS3-V 42468200 1 6/2/2017 Ce-144 -I.55E+OI l.39E+O l 4.07E+OI u TV ONS3-V 424682001 6/2/2017 Co-57 2.3 1 E-O I l.70E+OO 5.3 8E+OO u TV ONS3-V 42468200 1 6/2/2017 Co-58 3.29E+OO 2.52 E+OO 8.2 1 E+OO u TV ONS3-V 42468200 1 6/2/20 1 7 Co-60 1.24E+OO 3.94E+OO 9.95E+OO u TV ONS3-V 42468200 1 6/2/20 1 7 C r-51 2.12 E+OI l.98E+Ol 6.64E+Ol u TV ONS3-V 42468200 1 6/2/2017 Cs-1 34 -3.03 E-O l 2.83E+OO 9.0 l E+OO u TV ONS3-V 42468200 1 6/2/2017 Cs-1 37 5.ll E+OO 2.88E+OO 8.I 6E+OO u TV ONS3-V 42468200 1 6/2/2017 Fe-59 -3.08E+OO 5.1 9E+OO l.68E+O I u TV ONS3-V 424682001 6/2/2017 1-1 3 1 -1.80E+OO 3.35E+OO 9.72E+OO u TV ONS3-V 42468200 1 6/2/2017 K-40 4.23 E+03 1.8 1 E+02 8.ll E+OI TV ONS3-V 42468200 1 6/2/2017 La-1 40 l.75E+OO 3.0 I E+OO l.0 3E+OI u TV ONS3-V 42468200 1 6/2/20 1 7 Mn-54 -3.45E+OO 2.73E+OO 7.7 9E+OO u TV ONS3-V 42468200 1 6/2/20 1 7 Nb-95 8.97E-0 1 2.52E+OO 8.20E+OO u TV ONS3-V 42468200 1 6/2/20 1 7 Ru-I 03 -3.58E+OO 2.50E+OO 7.32E+OO u TV ONS3-V 424682001 6/2/2017 Ru-106 -I .2 2E+O I 3.55E+Ol 6.86E+O I u TV ONS3-V 42468200 1 6/2/2017 Sb-1 24 2.83 E+OO 4.38E+OO l.51 E+O I u TV ONS3-V 42468200 1 6/2/20 1 7 Sb-1 25 1.1 I E+OO 6.34E+OO 2.II E+OI u TV ONS3-V 424682001 6/2/2017 Se-75 -1.3 7E+OO 2.60 E+OO 8.6 1 E+OO u TV ONS3-V 424682001 6/2/2017 T h-228 l.75E-0 1 8.40E+OO l.50E+OI u TV ONS3-V 42468200 1 6/2/2017 Z n-65 4.05E+OO 6.05E+OO 2.07E+O I u TV ONS3-V 42468200 1 6/2/2017 Z r-95 4.00 E+OO 4.45E+OO I .46E+O I u TV ONS3-V 424682002 6/2/20 1 7 Ac-228 7.28E+O I 3.62E+Ol 8.97E+OI u TV ONS3-V 424682002 6/2/2017 Ag-1 08111 -1.6 3£-0 1 4.05E+OO l.36E+O I u TV ONS3-V 424682002 6/2/20 1 7 Ag-11 0111 -5.4 8E+OO 7.68E+OO 2.ll E+OI u TV ONS3-V 424682002 6/2/20 1 7 Ba-140 5.54E+OO 2.33E+O I 7.77E+OI u TV ONS3-V 424682002 6/2/2017 Be-7 1.14 E+03 1.1 IE+02 l.25E+02 TV ONS3-V 424682002 6/2/2017 Ce-141 2.35E+OO 6.97 E+OO 2.30E+OI u TV ONS3-V 424682002 6/2/2017 Ce-144 9.81 E+OO 2.67E+OI 8.85E+O I u TV ONS3-V 424682002 6/2/20 1 7 Co-57 -4.04 E+OO 3.59E+OO 9.92E+OO u TV ONS3-V 424682002 6/2/20 1 7 Co-58 -3.58E+OO 5.3 5 E+OO l.59E+OI u TV ONS3-V 424682002 6/2/2017 Co-60 l.26E+O I 6.80E+OO 2.36E+OI u TV ONS3-V 424682002 6/2/2017 C r-51 3.58E+O l 3.72E+OI l.30E+02 u TV ONS3-V 424682002 6/2/2017 Cs-134 -2.24E+OO 5.6 1 E+OO l.72 E+O I u TV ONS3-V 424682002 6/2/2017 Cs-137 4.49 E+OO 5.42E+OO l.8 3E+O I u TV ONS3-V 424682002 6/2/20 1 7 Fe-59 -1.42E+O I l.0 6E+O l 2.93E+O I u TV ONS3-V 424682002 6/2/2017 1-1 3 1 1.4 6E+O l 7.37E+OO 2.44E+OI u TV ONS3-V 424682002 6/2/2017 K-40 2.30 E+03 2.28E+02 2.0 3E+02 TV ONS3-V 424682002 6/2/2017 La-140 -I .23E+OO 8.73E+OO 2.77E+OI u TV ONS3-V 424682002 6/2/2017 M n-54 l.35E+OO 4.65E+OO l.5 1 E+OI u TV ONS3-V 4 24682002 6/2/20 17 Nb-95 4.22E+OO 5.56E+OO l.85 E+OI u TV ONS3-V 424682002 6/2/2017 Ru-1 03 4.71E+OO 5.13E+OO l.75 E+OI u TV ONS3-V 42468 2 002 6/2/2017 Ru-I 06 -7.76 E+Ol 4.88E+O I l.3 0E+02 u TV ONS3-V 424682002 6/2/2017 Sb-1 24 -2.00E+O I 1.7 7E+O I 3.82E+OI u TV ONS3-V 424682002 6/2/20 1 7 S b-1 25 l.73E+O I l.30E+OI 4.44E+OI u D-56 Don a ld C. Cook Nuclear Pl a n t Annual Radiological Environmental Operating Report 201 7 S AMP LE E ND C O NC STD.D EV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg) TV ONS3-V 424682002 6/2/20 1 7 Se-75 -4.62E-OI 6.78E+OO J.95 E+O l u TV ONS3-V 424682002 6/2/2017 T h-228 2.00E+OI I.50E+O I 3.18E+O l u TV ONS3-V 424682002 6/2/20 1 7 Z n-65 -4.66E+OO l.1 6E+OI 3.21E+OI u TV ONS3-V 424682002 6/2/20 1 7 Z r-95 l.30 E+O I 8.85 E+OO 3.0IE+O l u TV ONS3-V 424682003 6/2/20 1 7 Ac-228 l.2 3E+OI 6.66E+O I I.75E+02 u TV ONS3-V 424682003 6/2/20 1 7 Ag-1 08m -l.39E+OO 7.4 1 E+OO 2.4 1 E+O I u TV ONS3-V 424682003 6/2/20 1 7 Ag-I !Om l.4 3E+OI l.37 E+O l 4.77E+O I u TV ONS3-V 424682003 6/2/20 17 B a-1 40 3.47E+O I 4.04 E+OI l.35E+02 u TV ONS3-V 42 46 82003 6/2/20 1 7 Be-7 9.24 E+02 I .46 E+02 2.42 E+02 TV ONS3-V 424682003 6/2/20 1 7 Ce-1 41 -1.24 E+O I 1.1 8 E+O I 3.46E+O l u TV ONS3-V 424682003 6/2/20 1 7 Ce-1 44 -5.6IE+OI 4.04 E+O l 1.14 E+02 u TV ONS3-V 424682003 6/2/20 17 Co-57 2.90E+OO 5.09 E+OO J.65 E+O I u TV ONS3-V 424682003 6/2/20 1 7 Co-58 -6.8 1 E+OO 9.27 E+OO 2.92E+O I u TV ONS 3-V 424682003 6/2/20 1 7 Co-60 1.47 E+O I 1.22 E+OI 4.22E+O I u TV O NS3-V 424682003 6/2/20 1 7 C r-51 -1.76 E+OI 7.1 2 E+O I 2.3 6 E+02 u TV ONS3-V 424682003 6/2/20 17 Cs-134 9.50E+OO I.16 E+O l 4.02E+O I u TV ONS3-V 424682003 6/2/20 1 7 Cs-1 37 4.82E+Ol l.85 E+O I 3.54E+O l M TV ONS3-V 424682003 6/2/20 1 7 Fe-59 I .0 7E-OI 2.03 E+O I 6.6 6E+O I u TV ONS3-V 424682003 6/2/20 17 1-1 3 1 3.43E+OO I.1 8 E+O I 3.98E+O l u TV ONS3-V 424682003 6/2/20 1 7 K-40 4.15 E+03 3.73 E+02 3.15E+02 TV ONS3-V 424682003 6/2/20 1 7 La-1 40 -3.68 E+OO l.49 E+O I 4.1 9 E+O I u TV ONS3-V 424682003 6/2/20 1 7 Mn-54 -2.83 E+O l I.5 1E+O I 3.33 E+O l u TV ONS3-V 424 682003 6/2/20 1 7 Nb-95 -2.30 E+O I 1.22 E+O I 2.77E+0 1 u TV ONS3-V 424 682003 6/2/20 17 Ru-1 03 9.26 E+OO 9.37 E+OO 3.14 E+O I u TV ONS3-V 424682003 6/2/20 1 7 Ru-1 06 -l.59 E+02 I .OI E+02 2.65E+02 u TV ONS3-V 424 6 82003 6/2/20 1 7 Sb-1 24 -9.1 3 E-O I 1.77 E+Ol 5.87 E+O I u TV ONS 3-V 424682003 6/2/20 1 7 Sb-1 25 3.53E+O l 2.37 E+O I 7.9 3E+O I u TV ONS3-V 424682003 6/2/20 1 7 Se-75 8.59E+OO 8.92 E+OO 3.08 E+O I u TV ONS3-V 424 682003 6/2/20 1 7 T h-2 28 2.24 E+O I 2.79 E+OI 3.89E+O I u TV ONS 3-V 424682003 6/2/20 17 Z n-65 7.02 E+OO 2.43 E+O l 8. I 3 E+O I u TV ONS3-V 424682003 6/2/20 17 Z r-95 8.07E+OO I.71 E+O I 5.9 1 E+O I u TV ONS4-V 424682004 6/2/20 1 7 Ac-228 -3.25E+O l 3.21E+OI 8.2 1 E+OI u TV ONS4-V 424682004 6/2/20 17 A g-108m 1.42 E+OO 3.90 E+OO l.3 1 E+O I u TV ONS4-V 4 24682004 6/2/2017 A g-I I Om -4.80 E+OO 5.92 E+OO l.72E+OI u TV ONS4-V 424682004 6/2/20 17 B a-1 40 6.58E+Ol 3.99 E+O l 7.84E+O I u TV ONS4-V 424682004 6/2/20 1 7 Be-7 l.05 E+03 1.1 8 E+02 I. l l E+02 TV ONS4-V 424682004 6/2/2017 Ce-1 4 1 -4.53E+OO 9.92 E+OO 2.47E+O I u TV ONS4-V 42 4682004 6/2/20 1 7 Ce-1 44 -I.63 E+Ol 2.78 E+OI 9.29E+O I u TV ONS4-V 424682004 6/2/20 1 7 Co-57 -2.25E+OO 3.40 E+OO I.1 3 E+O l u TV ONS4-V 4 24682004 6/2/20 17 C o-58 3.1 2E+OO 4.73E+OO l.58 E+O I u TV ONS4-V 4 24682004 6/2/20 1 7 Co-60 -9.43E+OO I.II E+O I l.89 E+Ol u TV ONS4-V 4 24682004 6/2/20 1 7 C r-5 1 3.77E+OI 4.48 E+O I 1.52 E+02 u TV ONS4-V 424 682004 6/2/20 17 Cs-1 34 -3.1 IE+OO 6.82E+OO 1.68 E+O l u TV ONS4-V 4 24682004 6/2/20 1 7 Cs-1 37 -3.88 E-01 5.28 E+OO 1.71 E+O l u TV ONS4-V 4 24682004 6/2/20 1 7 Fe-59 -3.64 E+OO I.05 E+O l 3.23E+O l u T V ONS4-V 424682004 6/2/20 1 7 1-1 3 1 -I.43E+O I 7.75 E+OO 2.12 E+O I u TV ONS4-V 424682004 6/2/20 1 7 K-40 3.77E+03 2.36E+02 1.6 1 E+02 TV ONS4-V 424682004 6/2/20 1 7 La-1 40 -9.88E-Ol 7.48E+OO 2.47E+OI u TV ONS4-V 4 24682004 6/2/20 1 7 Mn-54 -I.04 E+Ol 5.57E+OO l.36 E+Ol u TV ONS4-V 424682004 6/2/20 1 7 Nb-95 -2.68 E+OO 5.17 E+OO l.60E+OI u D-57 Donald C. Cook Nuclea r Plant An n ual Radiological Env i ronmental Operating Report 2017 SAMPLE E ND CONC STD.D EV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg) TV ONS4-V 424682004 6/2/20 1 7 R u-1 03 2.28E+OO 4.84E+OO l.63E+OI u TV ONS4-V 424682004 6/2/20 17 R u-I 06 l.08E+02 8.42E+OI l.64E+02 u TV ONS4-V 424682004 6/2/20 1 7 S b-1 24 -5.04E+OO l.04E+O l 3.22E+O I u TV ONS4-V 424682004 6/2/20 17 S b-125 -2.02 E+O I l.35E+O I 3.84E+OI u TV ONS4-V 424682004 6/2/20 1 7 Se-75 -3.9 1 E+OO 6.20E+OO l.80E+OI u TV ONS4-V 424682004 6/2/20 1 7 T h-228 l.09E+O I l.22E+O I 3.24E+OI u TV ONS4-V 424682004 6/2/20 1 7 Zn-65 l.32E-O I l.26E+O I 3.55E+OI u TV ONS4-V 424682004 6/2/20 1 7 Z r-95 l.35E+O I 9.82E+OO 3.30E+OI u TV ONS4-V 424682005 6/2/20 1 7 Ac-228 2.89E+O I 2.6 1 E+O I 9.09E+OI u TV ONS4-V 424682005 6/2/20 1 7 Ag-1 08m -2.40E+OO 5.20E+OO l.64E+OI u TV ONS4-V 424682005 6/2/20 1 7 Ag-l!Om I .26E+O I 8.2 1 E+OO 2.88E+O I u TV ONS4-V 424682005 6/2/20 1 7 Ba-140 -3.99 E+OO 2.58E+O I 8.22E+OI u TV ONS4-V 424682005 6/2/20 1 7 Be-7 9.60E+02 l.09E+02 l.58E+02 TV ONS4-V 424682005 6/2/20 1 7 Ce-1 41 -3.62E+OO 8.23E+OO 2.72E+OI u TV ONS4-V 424682005 6/2/20 1 7 Ce-1 44 -1.45E+O I 3.4 1 E+OI 1.1 3E+02 u TV ONS4-V 424682005 6/2/20 1 7 Co-57 -3.24E+OO 4.34E+OO 1.4 1 E+OI u TV ONS4-V 424682005 6/2/20 1 7 Co-58 -1.54E+OO 5.57E+OO I.85E+OI u TV ONS4-V 424682005 6/2/20 1 7 Co-60 5.3 1 E-O I 6.44E+OO 2.1 5E+OI u TV ONS4-V 424682005 6/2/20 1 7 Cr-5 1 8.1 9 E+OO 5.1 6E+OI I.7 1 E+02 u TV ONS4-V 424682005 6/2/20 1 7 Cs-134 7.56E+OO 5.87E+OO 2.08E+O I u TV ONS4-V 424682005 6/2/20 1 7 Cs-1 37 1.1 I E+O l 7.09E+OO 2.34E+OI u TV ONS4-V 424682005 6/2/20 1 7 Fe-59 2.44E+OO l.22E+O I 4.1 4E+O I u TV ONS4-V 424682005 6/2/20 1 7 1-1 3 1 -4.52E+OO 7.60E+OO 2.38E+OI u TV ONS4-V 424682005 6/2/20 1 7 K-40 3.20E+03 2.53E+02 2.30E+02 TV ONS4-V 424682005 6/2/20 1 7 La-1 40 1.1 7E+OO 9.89E+OO 3.28E+O I u TV ONS4-V 424682005 6/2/20 1 7 M n-54 6.26E+OO 5.92E+OO 2.08E+OI u TV ONS4-V 424682005 6/2/20 17 N b-95 -9.83E+OO 8.1 2E+OO 2.06E+O I u TV ONS4-V 424682005 6/2/20 1 7 R u-1 03 l.53E+OO 5.88E+OO l.93E+OI u TV ONS4-V 424682005 6/2/20 17 R u-1 06 -6.76E+OO 5.78E+OI l.84E+02 u TV ONS4-V 424682005 6/2/20 1 7 Sb-1 24 -2.76E+O I l.6 1 E+OI 3.67E+OI u TV ONS4-V 424682005 6/2/20 1 7 S b-1 25 -8.36E+OO l.54E+O I 4.82E+OI u TV ONS4-V 424682005 6/2/20 1 7 Se-75 4.0 I E+OO 6.90E+OO 2.32E+OI u TV ONS4-V 424682005 6/2/20 1 7 T h-228 -2.60E+O I 1.47E+O I 3.94E+O I u TV ONS4-V 424682005 6/2/20 1 7 Zn-65 2.76E+O I l.5 1 E+O I 5.20E+OI u TV ONS4-V 424682005 6/2/20 17 Z r-95 -1.58E+OI 1.1 5E+OI 3.04E+OI u TV ONS4-V 424682006 6/2/20 1 7 Ac-228 -1.53E+OO 2.05E+OI 5.26E+OI u TV ONS4-V 424682006 6/2/20 1 7 Ag-1 08m I.70E+OO 3.04E+OO l.03E+OI u TV ONS4-V 424682006 6/2/20 1 7 Ag-1 l Om -2.93E-O I 5.75E+OO l.82E+OI u TV ONS4-V 424682006 6/2/2017 Ba-1 40 6.84E+OO 1.68E+OI 5.59E+OI u TV ONS4-V 4 24682006 6/2/20 1 7 Be-7 4.28E+02 8.I OE+O I 8.62E+OI TV ONS4-V 424682006 6/2/20 1 7 Ce-1 4 1 6.75E-O I 5.79E+OO l.82E+OI u TV ONS4-V 424682006 6/2/20 1 7 Ce-1 44 6.97E+O O l.97E+O I 6.24E+OI u TV ONS4-V 424682006 6/2/20 1 7 Co-57 4.3 7E+OO 2.85E+OO 8.9 1 E+OO u TV ONS4-V 424682006 6/2/20 1 7 Co-58 -I.37E+O O 3.96E+OO I.1 6E+OI u TV ONS4-V 424682006 6/2/20 1 7 Co-60 l.57E+OO 6.1 3E+OO l.74E+Ol u TV ONS4-V 424682006 6/2/20 1 7 Cr-5 1 2.57 E+O I 3.I I E+O I I.06E+02 u TV ONS4-V 42468200 6 6/2/20 1 7 Cs-1 34 l.13E+OO 4.45E+OO l.30E+O I u TV ONS4-V 424682006 6/2/20 1 7 Cs-137 7.75 E+OO 4.86E+OO l.60E+O I u TV ONS4-V 424682006 6/2/20 1 7 Fe-59 -5.54E+OO 8.3 0 E+OO 2.64E+O I u TV ONS4-V 424682006 6/2/20 1 7 1-1 31 -6.14E-O I 4.8 1 E+OO I.59E+O I u D-58 Don a ld C. Coo k Nuclear Pl a n t Annual R a diological Environmental O p erating R e port 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DAT E NUCL ID E (pCi/k g) (pCi/kg) (pCi/kg) TV ONS4-V 424682006 6/2/20 17 K-40 3.99E+03 2.20E+02 l.27E+02 TV ONS4-V 424682006 6/2/20 1 7 La-1 40 8.63E-01 4.1 8E+OO 1.41 E+O I u TV ONS4-V 424682006 6/2/20 17 Mn-54 -3.68E+OO 3.97E+OO l.15E+Ol u TV ONS4-V 424682006 6/2/20 1 7 Nb-95 2.40 E+OO 4.36 E+OO l.44E+O I u TY ONS4-V 424682006 6/2/20 1 7 Ru-1 03 -3.64E-0 1 3.6 1 E+O O 1.18 E+OI u TV ONS4-V 424682006 6/2/20 1 7 Ru-1 06 8.3 1 E+O I 4.54E+O I l.16 E+02 u TV ONS4-V 424682006 6/2/2017 Sb-1 24 -l.1 3E+OI 9.55E+OO 2.57E+O I u TY ONS4-V 424682006 6/2/2017 Sb-1 25 2.42 E+OO 9.04E+OO 3.03E+O I u TV ONS4-V 424682006 6/2/2017 Se-75 I.IO E+OO 4.85E+OO I .49E+OI u TV ONS4-V 424682006 6/2/2017 Th-228 l.5 8E+O I l.1 3E+O I 2.40E+O I u TV ONS4-V 424682006 6/2/20 17 Z n-65 -6.02E-O I 9.69E+OO 3.25E+O I u TV ONS4-V 424682006 6/2/20 1 7 Z r-95 3.2 1 E+OO 6.62E+OO 2.19 E+O I u TV OFS2-V 424682007 6/2/2017 Ac-228 -l.7 1 E+O I 2.6 1 E+OI 8.08E+O I u TV OFS2-V 424 68200 7 6/2/20 1 7 Ag-1 08m 1.14 E+OO 3.80E+OO l.15 E+O I u TV OFS2-V 424682007 6/2/2017 Ag-ll Om 5.50E+OO 5.34 E+OO l.90 E+O I u TV OFS2-V 424682007 6/2/20 1 7 Ba-1 40 l.59E+O I l.96E+O I 6.61E+O I u TV OFS2-V 424682007 6/2/20 1 7 Be-7 7.4 1 E+02 7.60 E+O I l.27E+02 TV OFS2-V 424682007 6/2/20 1 7 Ce-1 41 -6.2 1 E+OO 6.26E+OO l.85E+OI u TV OFS2-V 424682007 6/2/20 1 7 Ce-144 -l.72E+O I 2.22E+O I 6.71E+O I u TV OFS2-V 424682007 6/2/20 1 7 Co-57 2.17 E+OO 2.99E+OO 9.06E+OO u TV OFS2-V 424682007 6/2/20 1 7 Co-58 2.1 6£-02 4.1 3E+OO I .40E+O I u TV OFS2-V 424682007 6/2/20 17 Co-60 -l.07 E+OO 5.90E+O O l.90 E+O I u TV OFS2-V 424682007 6/2/20 17 Cr-S I -1.1 2E+O I 3.57E+O I l.1 8E+02 u TV OFS2-V 424682007 6/2/20 1 7 Cs-134 -4.40 E+OO 4.3 7 E+O O l.33 E+O I u TV OFS2-V 424682007 6/2/2017 Cs-1 37 2.5 1 E+OO 4.86E+OO l.60E+O I u TV OFS2-V 424682007 6/2/2017 Fe-59 2.58E+OO 8.77E+OO 2.98E+O I u TV OFS2-V 424682007 6/2/20 17 1-1 31 -3.65E+OO 6.0 I E+O O l.93E+O I u TY OFS2-V 424682007 6/2/20 17 K-40 3.62E+03 2.49E+02 l.03E+02 TV OFS2-V 424682007 6/2/20 17 La-1 40 -9.1 I E+OO 6.17 E+OO l.38E+O I u TV OFS2-V 424682007 6/2/20 17 Mn-54 -6.42 E+OO 4.90 E+OO 1.44 E+O I u TV OFS2-V 424682007 6/2/20 17 Nb-95 2.6 1 E-O I 4.76E+OO l.52E+O I u TV OFS2-V 424682007 6/2/20 17 Ru-103 -2.04 E+OO 4.22 E+OO l.33E+Ol u TV OFS2-V 424682007 6/2/20 1 7 Ru-1 06 6.42E+O I 4.72E+O I l.57E+02 u TV OFS2-V 424682007 6/2/20 1 7 Sb-1 24 -5.1 8E+OO l.0 8E+O I 3.1 9E+O I u TY OFS2-V 424682007 6/2/2017 Sb-1 25 5.69E+OO 1.2 8E+O I 3.9 0E+O I u TV OFS2-V 424682007 6/2/20 17 Se-75 2.67E+OO 4.82 E+O O l.66E+O I u TV OFS2-V 424 682007 6/2/20 1 7 Th-228 -l.13E+O I l.0 7E+O I 2.83E+O I u TV OFS2-V 424682007 6/2/20 17 Z n-65 -6.23E+OO l.2 1 E+OI 3.84E+O I u TV OFS2-V 424682007 6/2/20 17 Z r-95 8.43E+OO 7.57E+OO 2.56E+O I u TV ONS4-V 42745 1 001 7/7/2 017 Ac-228 5.65E+OI 4.1 5E+O I l.08E+02 u TV ONS4-V 42745 1 001 7/7/20 17 A g-10 8 111 -2.1 I E+OO 5.78E+OO l.87 E+O I u TV ONS4-V 42745100 1 7/7/20 17 Ag-110111

-4.20E+OO 9.48E+OO 2.83E+OI u TV ONS4-V 42745 1 00 1 7/7/20 1 7 Ba-1 40 -3.60E+OO 2.73E+O I 8.89E+OI u TV ONS4-V 42745 1 00 1 7/7/20 1 7 Be-7 l.29E+03 l.64E+02 2.08E+02 TV ONS4-V 427451001 7/7/2 017 Ce-141 -l.1 5E+O I 1.03 E+O I 2.98E+O I u TV ONS4-V 42745 1 00 1 7/7/20 17 Ce-144 7.44E+OO 4.04E+O I l.32E+02 u TV ONS4-V 42745 1 00 1 7/7/2 017 Co-57 8.68E-OI 5.53E+OO l.8 1 E+O I u TV ONS4-V 427451001 7/7/2 017 Co-58 8.8 1 E+OO 7.63E+OO 2.58E+OI u TV ONS4-V 427 45 1 00 1 7/7/2 0 1 7 Co-60 l.30 E+O I 9.34E+OO 3.40 E+OI u TV ONS4-V 42745 1 00 1 7/7/2 0 1 7 C r-S I -5.3 1 E+O I 5.52 E+O I l.72E+02 u D-5 9 Donald C. Cook Nuclear Plant Annual Radiological E n vironmental Operatin g Report 20 1 7 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg) TV ONS4-V 42745100 1 7/7/2017 Cs-1 34 -8.75£-0 1 8.22E+OO 2.6IE+OI u TV ONS4-V 427451001 7/7/20 1 7 Cs-137 7.53E+OO 8.90E+OO 3.05E+Ol u TV ONS4-V 42745100 1 7/7/2017 Fe-5 9 -3.14 E+OO l.30E+OI 4.26E+OI u TV ONS4-V 427451001 7/7/2017 1-131 4.94E+OO 9.31E+OO 3.23E+OI u TV ONS4-V 427451001 7/7/20 17 K-40 3.84E+03 3.24E+02 2.22E+02 TV ONS4-V 42745 1 001 7/7/2017 La-140 l.60 E+OI 8.05E+OO 3.33E+OI u TV ONS4-V 427451001 7/7/2017 Mn-54 1.93E+OI 7.34E+OO l.62 E+OI UI TV ONS4-V 427451001 7/7/20 1 7 Nb-95 8.36E+OO 6.58E+OO 2.34E+OI u TV ONS4-V 42745 10 0 1 7/7/2017 Ru-I 03 -3.36E+OO 6.84E+OO 2. 1 6E+Ol u TV ONS4-V 427451001 7/7/20 1 7 Ru-106 4.67E+O I 6.64E+O l 2.28E+02 u TV ONS4-V 427451001 7/7/2017 Sb-1 24 4.88E+OO l.54E+Ol 5.30E+OI u TV ONS4-V 427451001 7/7/2017 Sb-1 25 -1.66E+O l 1.73E+OI 5.19E+Ol u TV ONS4-V 427451001 7/7/20 17 Se-75 -2.56E+OO 8.64E+OO 2.62E+OI u TV ONS4-V 427451001 7/7/2017 T h-228 4.59E+Ol 2.35E+O I 5.llE+OI u TV ONS4-V 427451001 7/7/2017 Zn-65 -2.63 E+O I l.83E+OI 4.90E+OI u TV ONS4-V 42745 1 001 7/7/2017 Z r-95 5.1 8E+OO l.40E+O I 4.68E+Ol u TV ONS4-V 42745 10 02 7/7/2017 Ac-228 l.97E+OO 3.85E+OI l.28E+02 u TV ONS4-V 42745 1 002 7/7/2017 Ag-108m 2.46E+OO 6.60E+OO 2.16 E+OI u TV ONS4-V 427451002 7/7/2017 A g-I I Om 2.51E+OI 9.12 E+OO 2.90E+OI u TV ONS4-V 427451002 7/7/2017 Ba-1 40 6.29E+OI 5.63E+OI 9.74E+OI u TV ONS4-V 427451002 7/7/2017 Be-7 1.55 E+03 1.77E+02 l.97E+02 TV ONS4-V 427451002 7/7/2017 Ce-1 4 1 -2.53E+OO 8.68E+OO 2.78E+OI u TV ONS4-V 427451002 7/7/2017 Ce-14 4 2.66E+OO 3.19 E+O I l.04 E+02 u TV ONS4-V 427451002 7/7/2017 Co-57 9.08£-01 4.33E+OO l.42 E+OI u TV ONS4-V 42745 1 002 7/7/2017 Co-58 -9.89E-0 1 6.77 E+OO 2.25E+Ol u TV ONS4-V 42745 1 002 7/7/2017 Co-60 -1.84 E+O I 9.39E+OO l.95E+OI u TV ONS4-V 42745 10 02 7/7/2017 C r-51 2.50E+Ol 5.58E+OI l.84E+02 u TV ONS4-V 427451002 7/7/2017 Cs-134 4.42E+OO 9.37E+OO 3.24E+OI u TV ONS4-V 427451002 7/7/20 17 Cs-1 37 -8.61E+OO 7.86E+OO 2.34E+Ol u TV ONS4-V 427451002 7/7/2017 Fe-59 6.21E+OO l.38E+OI 4.8 1 E+Ol u TV ONS4-V 42745 1 002 7/7/2017 1-131 -4.35E+OO 9.49E+OO 2.95E+OI u TV ONS4-V 427451002 7/7/2017 K-40 2.65E+03 2.75E+02 l.88 E+02 TV ONS4-V 427451002 7/7/20 17 La-14 0 1.27E+Ol 8.12E+OO 3.24E+OI u TV ONS4-V 427451002 7/7/2017 Mn-54 l.34E+OI l.14E+OI 2.52E+OI u TV ONS4-V 427451002 7/7/2017 Nb-95 3.97E+OO 7.87E+OO 2.73E+OI u TV ONS4-V 427451002 7/7/2017 Ru-103 I .80E+OI 8.71E+OO 2.81E+OI u TV ONS4-V 42745 1 002 7/7/2017 Ru-106 7.33E+OI 6.83E+OI 2.40E+02 u TV ONS4-V 42745 1 002 7/7/2017 Sb-1 24 6.38E+OO l.63E+OI 5.73E+O I u TV ONS4-V 427451002 7/7/2017 Sb-125 -1.74E+OO l.89 E+OI 6.03E+OI u TV ONS4-V 42745 1 002 7/7/2017 Se-75 2.40E+O I 2.09E+OI 2.81E+OI u TV ONS4-V 427451002 7/7/20 I 7 Th-228 5.17E+OI 2.86E+OI 4.93E+OI UI TV ONS4-V 42745 1 002 7/7/20 1 7 Zn-65 3.0 I E+OO l.58E+OI 5.38E+OI u TV ONS4-V 42745 1 002 7/7/2017 Zr-95 l.92E+O I 2.3 1 E+O I 4.58E+OI u TV ONS4-V 427451003 7/7/2017 Ac-228 -6.66E+O I 3.37E+OI 9.45E+OI u TV ONS4-V 427451003 7/7/2017 A g-108m -3.30E+OO 5.20E+OO I .64E+OI u TV ONS4-V 427451003 7/7/20 17 Ag-I I Om -2.18 E+OO 7.64E+OO 2.34E+Ol u TV ONS4-V 42745 1 003 7/7/2017 Ba-140 -2.00E+OI 3.0 I E+OI 8.1 9E+OI u TV ONS4-V 427451003 7/7/2017 Be-7 2.44E+03 1.77 E+02 l.44E+02 TV ONS4-V 427451003 7/7/2017 Ce-141 -5.02E+OO 7.84E+OO 2.37E+OI u TV ONS4-V 42745 1 003 7/7/2017 Ce-144 -5.08E+OI 3.62E+OI 9.83E+OI u D-60 Don a ld C. C ook Nuclear Pla nt Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg) TV ONS4-V 427451003 7/7/20 1 7 Co-57 5.03E+OO 3.9 1 E+OO 1.27E+O l u TV ONS4-V 427451003 7/7/20 1 7 Co-58 -3.04E+OO 6.73 E+OO 2.04E+O I u TV ONS4-V 427451003 7/7/20 1 7 Co-60 -l.0 2E+O l 7.07E+OO l.80E+O l u TV ONS4-V 427451003 7/7/20 1 7 C r-5 1 9.56E+OI 5.54E+O I l.86E+02 u TV ONS4-V 427451003 7/7/20 1 7 Cs-1 34 1.35E+O l 6.9 1 E+OO 2.36E+O I u TV ONS4-V 42745 1 003 7/7/20 1 7 Cs-137 -2.76E+OO 6.82E+OO 2.13E+OI u TV ONS4-V 427451003 7/7/2 0 1 7 Fe-59 -2.17 E+OI l.55 E+Ol 4.36E+O I u TV ONS4-V 427451003 7/7/20 1 7 1-1 3 1 -2.04E+OI 9.54E+OO J.97E+O l u TV ONS4-V 42745 1 003 7/7/20 1 7 K-40 7.34E+03 4.91E+02 1.8 4E+02 TV ONS4-V 427451003 7/7/20 1 7 La-1 40 5.48E+OO 8.0 l E+OO 2.83E+O I u TV ONS4-V 427451003 7/7/20 1 7 Mn-54 5.90E+OO 5.26E+OO l.80E+O l u TV ONS4-V 427451003 7/7/2 017 Nb-95 1.6 1 E+OO 5.58 E+OO J.83E+O I u TV ONS4-V 427451003 7/7/2017 Ru-103 2.84E+OO 6.02E+OO 2.03E+Ol u TV ONS4-V 427451003 7/7/20 1 7 Ru-106 5.25E+O I 4.98E+O I l.7 0E+02 u TV ONS4-V 427451003 7/7/20 1 7 Sb-1 24 7.46E+OO 7.96E+OO 3.09E+O l u TV ONS4-V 427451003 7/7/20 1 7 Sb-125 -7.34E+OO l.4 6E+O I 4.65E+OI u TV ONS4-V 427451003 7/7/20 1 7 Se-75 8.45E+OO 7.1 9E+OO 2.49E+OI u TV ONS4-V 427451003 7/7/20 1 7 Th-228 3.26E+O I 2.43E+O I 4.00E+OI u TV ONS4-V 42745100 3 7/7/2 017 Z n-65 -1.27E+OI l.27E+O I 3.71E+Ol u TV ONS4-V 42745100 3 7/7/20 1 7 Z r-95 -l.09E+OI 1.1 8E+O l 3.40E+O I u TV ONS2-V 427451004 7/7/2 017 Ac-228 -4.96E+O I 3.06 E+OI 8.83 E+OI u TV ONS2-V 427451004 7/7/2 0 1 7 Ag-108 m -7.98E+OO 7.94E+OO 2.04E+O I u TV ONS2-V 427451004 7/7/2 017 Ag-1 IOm 9.I I E-03 9.79E+OO 2.93E+O I u TV ONS2-V 427451004 7/7/2 01 7 Ba-140 -7.90 E+OO 2.94 E+O I 9.26E+OI u TV ONS2-V 427451004 7/7/2017 Be-7 l.66E+03 l.55E+02 l.62E+02 TV ONS2-V 427451004 7/7/2 0 1 7 Ce-1 41 -3.68E+OI l.38 E+OI 2.98E+OI u TV ONS2-V 427451004 7/7/2017 Ce-1 44 2.23E+OI 3.78E+OI l.32E+02 u TV ONS2-V 427451004 7/7/20 17 Co-57 2.87E-OI 4.6 1 E+OO l.59E+O l u TV ONS2-V 427451004 7/7/2 0 1 7 Co-58 2.79E+O I 9.34E+OO 2.0IE+O l UI TV ONS2-V 427451004 7/7/2 0 1 7 Co-60 7.05E+OO 8.56E+OO 3.13 E+O I u TV ONS2-V 427451004 7/7/20 1 7 C r-51 -9.93E+O I 6.42E+O I l.78E+02 u TV ONS2-V 427451004 7/7/2017 Cs-1 34 8.88E+OO 7.68E+OO 2.66E+O l u TV ONS2-V 427451004 7/7/2 0 1 7 Cs-1 37 5.56E+OI 1.42 E+O I 2.88E+O I M TV ONS2-V 427451004 7/7/20 17 Fe-59 6.8 1 E-O I l.4 4E+O I 4.27E+O I u TV ONS2-V 427451004 7/7/2017 1-131 -2.1 l E+O I l.12 E+O I 2.81E+O l u TV ONS2-V 427451004 7/7/2 017 K-40 l.93E+03 2.34 E+02 2.14E+02 TV ONS2-V 427451004 7/7/2017 La-140 -3.44 E-OI 7.93 E+OO 2.56E+OI u TV ONS2-V 427451004 7/7/2 017 Mn-54 -4.68E+OO 6.67E+OO 2.09E+O I u TV ONS2-V 427451004 7/7/20 1 7 N b-95 -2.34E+OO 8.46E+OO 2.61E+O I u TV ONS2-V 427451004 7/7/2 017 Ru-1 03 -l.25E+OO 6.70E+OO 2.14 E+O I u TV ONS2-V 427451004 7/7/20 1 7 Ru-1 06 4.42E+O I 6.96E+OI 2.33E+02 u TV ONS2-V 427451004 7/7/20 1 7 Sb-1 24 9.89E+OO l.75 E+O I 6.1 3E+OI u TV ONS2-V 427451004 7/7/20 17 Sb-1 25 -4.30E+O I 2.06E+O I 4.72E+OI u TV ONS2-V 427451004 7/7/20 1 7 Se-75 -3.61 E+OO 8.38E+OO 2.41 E+O I u TV ONS2-V 427451004 7/7/20 17 Th-228 -7.45E+OO 1.40 E+O I 4.45 E+O I u TV ONS2-V 42745100 4 7/7/20 1 7 Z n-65 4.73E-OI l.58 E+O I 5.28E+OI u TV ONS2-V 427451004 7/7/2 017 Z r-95 -3.69E+OI l.74 E+O I 3.56 E+O I u TV ONS2-V 427451005 7/7/2017 Ac-228 -l.59E+OI 3.35E+O I 9.83E+OI u TV ONS2-V 427451005 7/7/20 1 7 Ag-1 08 111 -3.74E+OO 4.92 E+OO l.5 3E+OI u TV ONS2-V 427451005 7/7/20 1 7 Ag-110111 3.7 7E+OO 8.1 2E+OO 2.70 E+O I u D-61 Donald C. Cook Nuclear Plant Ann u al Radiological En v ironmen t al Opera t ing Report 2017 SAMPLE E ND CONC ST D.D EV. MD C FLAGS T YP E STATI ON LS N D ATE NUCL ID E (pCi/kg) (pCi/kg) (p Ci/kg) TV ONS2-V 42745 1 005 7/7/20 1 7 Ba-1 40 -3.21E+O I 2.30E+O I 6.13 E+O l u TV ONS2-V 42745 1 005 7/7/20 1 7 Be-7 l.64E+03 1.67E+02 1.79E+02 TV ONS2-V 42745 1 005 7/7/20 1 7 Ce-1 4 1 -1.24E+O l 1.04£+0 1 2.99£+01 u TV ONS2-V 42745 1 005 7/7/20 1 7 Ce-1 44 -2.7 1£+0 1 3.63E+O I 1.1 0£+02 u TV ONS2-V 42745 1 005 7/7/20 17 Co-57 2.33£+00 4.82£+00 1.59£+0 1 u TV ONS2-V 42745 1 005 7/7/20 1 7 Co-58 6.50£-0 1 6.86E+OO l.98E+Ol u TV ONS2-V 42745 1 005 7/7/20 1 7 Co-60 -5.00E+OO 6.47£+00 1.89£+01 u TV ONS2-V 42745 1 005 7/7/20 1 7 C r-5 1 6.99E+O I 5.1 2E+O l 1.78£+02 u TV ONS2-V 42745 1 005 7/7/20 1 7 Cs-1 34 -3.34E+O O 6.39£+00 1.9 1£+0 1 u TV ONS2-V 42745 1 005 7/7/20 1 7 Cs-1 37 1.42E+O l 6.8 1 E+OO 2.33£+0 1 u TV ONS2-V 42 7 45 1 005 7/7/20 1 7 Fe-59 5.3 1 E+OO 1.25£+0 1 4.35£+01 u TV ONS2-V 42745 1 005 7/7/20 1 7 1-1 3 1 2.1 5£+01 l.24E+O I 2.64E+OI u TV ONS2-V 42745 1 005 7/7/20 1 7 K-40 2.81£+03 2.87£+02 2.0 9E+02 TV ONS2-V 42745 1 005 7/7/20 1 7 La-1 40 -7.25E+O O 7.08E+OO 1.75E+OI u TV ONS2-V 42 7 45 1 005 7/7/20 1 7 M n-54 5.91£+00 6.24£+00 2.1 3E+OI u TV ONS2-V 42745 1 005 7/7/20 1 7 Nb-95 -3.22E+OO 6.59£+00 1.92E+O I u TV ONS2-V 42745 1 005 7/7/20 17 R u-1 03 -5.67£+00 5.9 1£+00 l.76E+O I u TV ONS2-V 42745 1 005 7/7/20 17 R u-1 06 1.1 4E+02 6.24E+O I 2.1 2E+0 2 u TV ONS2-V 42745 1 005 7/7/20 1 7 Sb-1 24 8.48E+OO 9.04E+OO 3.5 1 E+O I u TV ONS2-V 42745 1 005 7/7/20 1 7 Sb-1 25 -1.1 4£+0 1 1.75E+O I 4.86E+OI u TV ONS2-V 42745 1 005 7/7/20 1 7 Se-75 2.86E+OO 6.90£+00 2.4 1 E+O I u TV ONS2-V 42745 1 005 7/7/20 17 T h-228 8.77E+OO 1.89E+O I 4.I OE+OI u TV ONS2-V 42745 1 005 7/7/20 1 7 Z n-65 -8.82E+OO 1.49E+O I 3.97E+O I u TV ONS2-V 42 7 45 1 005 7/7/20 1 7 Z r-95 9.72E+O O 9.77£+00 3.40£+0 1 u TV ONS2-V 42745 1 006 7/7/20 1 7 Ac-228 1.73£+0 1 2.78E+O I 9.7 1£+0 1 u TV ONS2-V 42745 1 006 7/7/20 1 7 Ag-1 08m 1.87£+00 4.72E+OO 1.64£+0 1 u TV ONS2-V 42745 1 006 7/7/20 1 7 Ag-II Om 6.27£+00 7.33E+OO 2.56E+O I u TV ONS2-V 42745 1 006 7/7/20 1 7 Ba-1 40 5.93E+O l 3.1 5£+0 1 7.87£+0 1 u TV ONS2-V 42745 1 006 7/7/20 1 7 Be-7 2.78£+03 2.03E+02 I .53E+02 TV ONS2-V 42745 1 006 7/7/20 1 7 Ce-1 41 -2.53E+O l 1.08£+0 1 2.38£+0 1 u TY ONS2-V 42745!006 7/7/20 1 7 Ce-1 44 4.82E+O l 3.38E+O I 1.1 2E+02 u TV ONS2-V 42745 1 006 7/7/20 1 7 Co-57 1.24£+00 4.1 4E+OO 1.30£+0 1 u TV ONS2-V 427451006 7/7/20 1 7 Co-58 7.24E+OO 6.00E+OO 2.1 0£+0 1 u TV ONS2-V 42745 1 006 7/7/20 1 7 Co-60 -1.25£+0 1 6.7 1 E+OO 1.42E+O I u TV ONS2-V 42745 1 006 7/7/20 1 7 C r-5 1 -1.6 1£+0 1 4.37£+0 1 1.47£+0 2 u TV ONS2-V 42745 1 006 7/7/20 1 7 Cs-1 34 -8.03£-01 6.00E+OO 1.93£+0 1 u TV ONS2-V 42745 1 006 7/7/20 1 7 Cs-137 1.94£+0 1 1.I I E+O l 2.24£+0 1 u TV ONS2-V 42745 1 006 7/7/20 1 7 Fe-59 7.28£+00 l.27E+O I 4.27E+O I u TV ONS2-V 42745 1 006 7/7/20 1 7 1-1 31 4.20£+0 0 6.66E+OO 2.34£+0 1 u TV ONS2-V 42745 1 006 7/7/20 1 7 K-40 2.69£+03 2.53£+02 1.50£+02 TV ONS2-V 42745 1 006 7/7/20 1 7 La-1 40 3.36E+OO 1.0 I E+O l 3.46£+0 1 u TV ONS2-V 42745 1 006 7/7/20 1 7 Mn-54 -2.78£+00 5.79£+00 1.54E+O l u TV ONS2-V 42745 1 006 7/7/20 1 7 Nb-95 -2.27£-0 1 5.1 I E+OO 1.63£+0 1 u TV ONS2-V 42745 1 006 7/7/20 17 R u-1 03 -5.95E+O O 5.8 1 E+OO 1.50E+O l u TV ONS2-V 42745 1 006 7/7/20 17 R u-106 5.20£+0 1 3.90£+0 1 1.4 1 E+02 u TV ONS2-V 427451006 7/7/20 1 7 Sb-1 24 -4.44£+0 0 9.53£+00 2.79£+0 1 u TV ONS2-V 42745 1 006 7/7/20 17 S b-1 25 3.92E+O O 1.3 7£+0 1 4.74E+O l u TV ONS2-V 42745 1 006 7/7/20 1 7 Se-75 5.46£+00 7.0 6E+OO 2.3 0 E+O I u TV ONS2-V 42745 1 006 7/7/20 1 7 T h-228 1.93£+01 1.74£+0 1 3.79£+0 1 u TV ONS2-V 42745 1 006 7/7/20 1 7 Z n-65 -2.27£+0 1 1.63£+0 1 4.07E+OI u D-62 Don a ld C. Coo k Nuclear Plant Annual R adiological Environmental Operating Report 2017 S AMPL E END C ON C STD.D E V. MDC FLA G S TYP E ST A TIO N LS N DATE NUC LI DE (p Ci/kg) (pCi/kg) (p C i/kg) TV ONS 2-V 42745 1 006 7/7/20 1 7 Z r-95 1.22E+O I 1.l O E+O I 3.84E+Ol u TV OFS I-V 42745 1 0 0 7 7/7/20 1 7 Ac-228 -1.l 1 E+02 4.27E+O I 7.24E+Ol u TV OFSI-V 42745 1 007 7/7/20 1 7 Ag-1 08 m 4.53E+OO 8.2 1 E+OO 2.89E+O I u TV OFS I-V 42745 1 007 7/7/20 17 A g-ll O m 5. IO E-0 1 1.28E+O l 4.1 3E+Ol u TV OFSI-V 427451007 7/7/20 1 7 Ba-1 40 2.57E+O l 3.5 1 E+OI 1.25£+0 2 u TV OFS I-V 42745 1 007 7/7/20 1 7 Be-7 1.29£+03 2.48E+02 2.57£+0 2 TV OFS I-V 42745 1 007 7/7/20 1 7 C e-1 4 1 -1.76E+O I 1.44£+0 1 4.07£+0 1 u TV OFS I-V 427451007 7/7/20 1 7 Ce-1 44 4.35£+0 1 5.1 IE+O l 1.74E+0 2 u TV OFS I-V 427451007 7/7/20 1 7 C o-57 -6.29E+OO 6.37£+00 1.77E+O l u TV OFS I-V 42745 1 007 7/7/20 1 7 C o-58 -1.02E+O I 1.1 4 E+O I 3.1 7 E+O I u TV OFS I-V 42745 1 007 7/7/20 1 7 C o-60 -1.8 1 E+Ol I .06 E+O I 1.75 E+O I u TV O F S I-V 42745 1 007 7/7/20 1 7 Cr-51 -2.43E+OO 7.80 E+O I 2.44E+0 2 u TV OFS I-V 4 2 7451007 7/7/20 1 7 Cs-1 3 4 -l .47E+O I 1.46 E+O l 3.3 1 E+O I u TV OFS I-V 42745 1 007 7/7/20 1 7 Cs-137 3.1 8E+OO 1.02E+O l 3.48£+0 1 u TV OFS I-V 42745 1 007 7/7/20 1 7 Fe-59 3.98£+0 1 2.40E+O I 8.97£+0 1 u TV OFS I-V 42745 1 007 7/7/20 1 7 1-1 3 1 1.93E+O l 1.27 E+O I 4.53 E+O I u TV OFS I-V 42745 1 007 7/7/20 17 K-40 2.1 9E+03 3.25£+02 O.OO E+O O TV OFS l-V 42745 1 007 7/7/20 17 La-1 4 0 -6.49E+OO l.31E+O I 3.73E+O I u TV OFS I-V 42745 1 007 7/7/20 17 M n-54 l.92E+OO 9.77£+00 3.23£+01 u TV OFS I-V 42745 1 00 7 7/7/20 17 N b-95 -4.83E+OO l.1 2E+O l 3.57£+0 1 u TV OFS I-V 42745 1 007 7/7/20 17 R u-1 03 3.67£-0 1 8.68E+OO 2.93E+O l u TV OFS I-V 42745 1 007 7/7/20 1 7 R u-1 06 -4.93E+O I 8.34E+O l 2.53E+0 2 u TV OFS I-V 42745 1 007 7/7/20 1 7 Sb-124 -1.69E+OO 2.57£+0 1 8.25E+Ol u TV OFS I-V 427451007 7/7/20 1 7 Sb-1 25 -1.40E+O I 2.34E+O l 7.45 E+O I u TV OFS I-V 427451007 7/7/20 1 7 Se-75 9.84E+O O 1.24E+O I 3.84E+O I u TV OFS I-V 42745 1 007 7/7/20 1 7 Th-228 -1.4 5E+OI 2.05 E+O I 6.17 E+Ol u TV OFS I-V 42745 1 007 7/7/20 1 7 Z n-65 -7.66E+OO 2.60 E+O l 8.47 E+Ol u TV OFS I-V 42 7 45 1 007 7/7/20 17 Z r-95 2.3 0 E+OO l.90 E+O l 6.25 E+O l u TV ONS2-V 43 1 64500 1 8/25/20 1 7 Ac-228 3.5 1 E+OO 4.44 E+O l 7.48£+0 1 u TV ONS2-V 43 1 64500 1 8/25/20 17 A g-1 08 m 3.89E+OO 4.8 1 E+OO 1.64E+O I u TV ONS2-V 43 1 64500 1 8/25/20 1 7 Ag-1 l O m -1.97£+00 6.65E+OO 2.07£+0 1 u T V ONS2-V 43 1 64500 1 8/25/20 1 7 Ba-1 40 -3.69E+O I 2.42E+O I 6.6 7£+0 1 u TV ONS2-V 43 1 64500 1 8/25/20 1 7 Be-7 4.26E+03 2.53 E+02 1.4 1 E+0 2 T V ONS2-V 43 1 64500 1 8/25/20 1 7 C e-1 4 1 -1.9 1 E+Ol 1.34 E+O I 2.89 E+OI u T V ONS2-V 43 1 645001 8/25/20 1 7 Ce-1 44 I .53E+O l 3.39E+OI l.09 E+0 2 u T V ONS2-V 43 1 64500 1 8/25/20 1 7 C o-57 1.79E+OO 4.66 E+OO 1.50 E+O I u TV ONS2-V 43 1 64500 1 8/25/20 1 7 C o-58 3.80E-O I 5.38 E+OO I.56 E+O I u T V ONS2-V 43 1 64500 1 8/25/20 17 C o-60 l.93E+OO 5.95E+OO 2.05£+0 1 u TV ONS2-V 43 1 64500 1 8/25/20 1 7 C r-5 1 -I.28E+O I 4.9 1 E+OI l.64 E+02 u TV ONS2-V 4 3 1 64500 1 8/25/20 1 7 Cs-1 34 5.60E+OO 6.64 E+OO 2.23 E+O I u TV ONS2-V 43 1 64500 1 8/25/20 1 7 C s-137 1.38E+OO 5.89E+OO l.95E+OI u TV ONS2-V 43 1 64500 1 8/25/20 1 7 Fe-59 -4.1 4 E+OO 1.1 9 E+O I 3.94£+0 1 u TV O N S2-V 43 1 64500 1 8/25/20 1 7 1-1 3 1 3.09E+OO 7.88 E+OO 2.69 E+O I u TV ONS2-V 43 1 64500 1 8/25/20 1 7 K-40 3.57E+03 2.92 E+02 1.49£+0 2 T V ONS2-V 43 1 64500 1 8/25/20 1 7 La-1 40 7.7 8E+OO 9.44 E+OO 3.3 1 E+Ol u TV ONS2-V 43 1 64500 1 8/25/20 1 7 Mn-54 3.06E+OO 5.75£+00 l.83 E+OI u TV ONS2-V 43 1 64500 1 8/25/20 1 7 Nb-95 9.89E+OO 6.55 E+OO 2.03 E+O l u T V ONS2-V 43 1 64500 1 8/25/20 17 R u-1 03 -2.4 0 E+OO 5.26E+O O 1.69£+0 1 u TV ONS2-V 43 1 645001 8/25/20 1 7 R u-I 06 -1.90E+O I 5.22£+01 1.67£+02 u TV ONS2-V 43 1 64500 1 8/25/20 1 7 Sb-1 24 l.20E+O I 1.08 E+O l 3.98 E+Ol u D-63 Donald C. Cook Nuclea r Plant Annual R a d i ological Environmental Opera t i ng Report 2017 SAMP L E E ND CONC ST D.D EV. MDC FLAGS TYPE STATIO N LSN DA TE NU CLIDE (pCi/kg) (pCi/kg) (pC i/kg) TV ONS2-V 43 1 645001 8/25/20 17 S b-1 25 8.77E-02 1.52E+O I 5.07E+OI u TV ONS2-V 43 1 64500 1 8/2 5/20 1 7 Se-75 2.39E+OO 6.97E+OO 2.40E+OI u TV ONS2-V 43 1 64500 1 8/25/20 17 T h-228 2.95E+O I 2.52E+OI 4.0 4E+OI u TV ONS2-V 43 1 64500 1 8/25/20 1 7 Z n-65 -2.09E+OO l.35E+O I 3.97E+OI u TV ONS2-V 43 1 64500 1 8/25/2 0 1 7 Zr-95 -1.1 7E+OO l.04E+O I 3.33E+OI u TV ONS2-V 43 1 645002 8/25/20 1 7 Ac-228 l.32E+O I 3.65E+O I l.3 1 E+02 u TV ONS2-V 43 1 645002 8/25/20 1 7 Ag-1 08m 4.1 IE-0 1 6.25E+OO 2.05E+OI u TV ONS2-V 43 1 645002 8/25/20 1 7 Ag-l l Om -2.54E+OO 8.9 1 E+OO 2.86 E+OI u TV ONS2-V 43 1 645002 8/25/20 1 7 Ba-1 40 -6.05E+O I 3.89E+O I 9.1 7E+O I u TV ONS2-V 43 1 645002 8/25/20 1 7 Be-7 2.77E+03 2.36E+02 l.86E+02 TV ONS2-V 43 1 645002 8/25/20 1 7 Ce-141 -1.1 9E+O I l.34E+O I 3.5 1 E+OI u TV ONS2-V 43 1 645002 8/25/20 1 7 Ce-1 44 4.95E+O I 4.25E+O I l.38E+02 u TV ONS2-V 43 1 645002 8/25/20 1 7 Co-57 4.83E+OO 6.2 1 E+OO 2.0 I E+OI u TV ONS2-V 43 1 645002 8/25/20 1 7 Co-58 8.72E+OO 7.l OE+OO 2.39E+OI u TV ONS2-V 43 1 645002 8/25/20 1 7 Co-60 -3.48 E+OO 7.7 1 E+OO 2.28E+OI u TV ONS2-V 43 1 645002 8/25/20 1 7 Cr-5 1 l.87E+O I 6.60E+O I 2.23E+02 u TV ONS2-V 43 1 645002 8/25/20 1 7 Cs-134 -I. I I E+O I 8.0 I E+OO 2.1 4 E+OI u TV ONS2-V 43 1 645002 8/25/20 1 7 Cs-137 l.35E+O I 8.53E+OO 3.02E+OI u TV ONS2-V 43 1 645002 8/25/20 1 7 Fe-59 l.94 E+O l 9.52E+OO 3.89E+OI u TV ONS2-V 43 1 645002 8/2 5/20 1 7 1-13 1 5.1 6 E+OO 1.06E+O I 3.59E+O I u TV ONS2-V 43 1 645002 8/25/20 1 7 K-40 2.07 E+03 2.58E+02 2.1 9E+02 TV ONS2-V 43 1 645002 8/25/20 1 7 L a-1 40 -5.6 1 E+OO 1.22E+O I 3.79E+OI u TV ONS2-V 43 1 645002 8/25/20 17 M n-54 -9.79E+OO 9.35E+OO 2.29 E+OI u TV ONS2-V 43 1 645002 8/25/20 17 N b-95 l.7 1 E+O I 8.77E+OO 2.92E+OI u TV ONS2-V 43 1 645002 8/25/20 1 7 R u-I 03 -l.77E+OO 7.52E+OO 2.38E+OI u TV ONS2-V 43 1 645002 8/25/20 17 R u-1 06 -4.02E+O I 6.65E+OI l.96E+02 u TV ONS2-V 43 1 645002 8/25/20 1 7 S b-1 24 -1.59E+O l l.74E+O I 4.70E+OI u TV ONS2-V 43 1 645002 8/25/20 1 7 S b-1 25 3.96E+OO 1.86E+O I 6.1 7E+OI u TV ONS2-V 43 1 645002 8/25/20 1 7 Se-75 -3.I OE+O O 8.78E+OO 2.89E+O I u TV ONS2-V 43 1 645002 8/25/20 17 T h-228 l.92 E+O I 2.93E+O I 5.98E+OI u TV ONS2-V 43 1 645002 8/25/20 1 7 Z n-65 -l.07 E+O I l.89E+O I 5.0 2E+OI u TV ONS2-V 43 1 645002 8/25/20 1 7 Zr-95 -3.86 E+OO l.24E+O I 4.05E+O I u TV ONS2-V 43 1 645003 8/2 5/20 1 7 Ac-228 1.1 8E+Ol 6.1 9E+O I 2.0 I E+02 u TV ONS2-V 43 1 645003 8/25/20 1 7 Ag-108m 7.07 E+OO 1.0 I E+O I 3.50E+OI u TV ONS2-V 43 1 645003 8/2 5/20 1 7 Ag-ll Om -3.64E+OI 1.80E+O I 3.48E+OI u TV ONS2-V 43 1 645003 8/25/20 1 7 Ba-140 9.54 E+O I 5.58E+O I 1.82E+02 u TV ONS2-V 43 1 645003 8/2 5/20 1 7 Be-7 4.68 E+03 3.56E+02 2.77E+02 TV ONS2-V 43 1 645003 8/25/20 1 7 Ce-1 4 1 l.27E+O I l.78E+O I 5.86E+O I u TV ONS2-V 43 1 645003 8/2 5/20 1 7 Ce-1 44 -2.48E+O I 6.40E+OI 2.02E+02 u TV ONS2-V 43 1 645003 8/2 5/20 1 7 Co-57 l.66E+OO 7.27E+OO 2.39E+OI u TV ONS2-V 43 1 645003 8/25/20 1 7 Co-58 -9.67E+OO I.OOE+OI 2.70E+OI u TV ONS2-V 43 1 645003 8/2 5/20 1 7 Co-60 3.43E+OO l.24E+OI 4.25E+OI u TV ONS2-V 43 1 645003 8/25/20 1 7 Cr-5 1 3.75E+O I 9.70E+O I 3.37 E+02 u TV ONS2-V 43 1 645003 8/2 5/20 1 7 Cs-1 34 2.66 E+O I l.98E+OI 4.25E+OI u TV ONS2-V 43 1 645003 8/25/20 1 7 Cs-137 5.93 E+O l 2.78E+O I 3.25 E+OI UI TV ONS2-V 43 1 645003 8/2 5/20 1 7 Fe-59 -6.92E+O O 2.62E+OI 8.26E+OI u TV ONS2-V 43 1 645003 8/25/20 1 7 1-1 3 1 8.38E+OO l.59E+O I 5.52E+OI u TV ONS2-V 43 1 64 5 003 8/25/20 1 7 K-40 l.97E+03 3.1 4E+02 3.73E+02 TV ONS2-V 43 1 645003 8/2 5/20 1 7 La-1 40 2.03E+O I l.93E+O I 7.03E+OI u TV ONS2-V 43 1 645003 8/25/20 17 M n-54 -9.44E-O I l.15 E+OI 3.65E+OI u D-64 Don a ld C. Cook Nuclear Plant Annu a l Radiologi c al Environmental Operating R e port 2017 S AMP LE EN D CO N C ST D.D E V. M D C FL AG S T YPE STATIO N LSN DATE NUCL ID E (p Ci/kg) (pCi/kg) (pC i/kg) TV ONS2-V 43 1 645003 8/25/20 1 7 N b-95 1.54E+O l l.37E+O l 4.20E+O l u TV ONS2-V 43 1 645003 8/25/20 17 R u-1 03 l.02E+Ol 1.13E+Ol 3.9 1 E+O l u TV ONS2-V 43 1 645003 8/25/20 17 R u-1 06 -3.1 2E+O I 1.0 1 E+02 3.22E+02 u TV ONS2-V 43 1 645003 8/25/20 1 7 Sb-124 -I .87E+O l 1.85E+O l 4.00E+O I u TV ONS2-V 43 1 645003 8/25/20 1 7 S b-1 25 8.76E+OI 3.63E+O I 1.1 8E+02 u TV ONS2-V 43 1 645003 8/25/20 1 7 Se-75 9.2 1 E+OO 1.50E+O I 4.82E+O l u TV ONS2-V 43 1 645003 8/25/20 1 7 Th-228 4.27E+OI 3.38E+O I 8.25E+O l u TV ONS2-V 43 1 645003 8/25/20 1 7 Z n-65 2.82E+O l 2.3 1 E+O l 8.47E+O l u TV ONS2-V 43 1 645003 8/25/20 1 7 Zr-95 5.73E+O l 3.1 6E+O l 7.78E+O I u TV ONS4-V 43 1 645004 8/25/20 1 7 Ac-228 -4.3 1 E+O I 3.07E+O l 8.99E+O l u TY ONS4-V 43 1 645004 8/25/20 17 Ag-1 08 111 O.OOE+OO O.OOE+OO 1.80E+O I u TV ONS4-V 43 1 645004 8/25/20 1 7 Ag-11 0 111 -3.83E+OO 8.1 4E+OO 2.6 1 E+O I u TY ONS4-V 43 1 645004 8/25/20 1 7 Ba-1 40 2.70E+O I 3.40E+O I 1.1 4E+02 u TV ONS4-V 43 1 645004 8/25/20 1 7 Be-7 2.77E+03 1.98E+02 1.75E+02 TV ONS4-V 43 1 645004 8/25/20 1 7 Ce-1 41 -3.72E+OO 8.82E+OO 2.90E+O I u TV ONS4-V 43 1 645004 8/25/20 1 7 Ce-1 44 -3.1 4E+O I 3.1 2E+O I 9.70E+O I u TY ONS4-V 43 1 645004 8/25/20 1 7 Co-57 9.32E+OO 5.99E+OO 1.57E+O I u TV ONS4-V 43 1 645004 8/25/20 1 7 Co-58 -J.4 3E+O l 6.99E+OO 1.33E+O l u TY ONS4-V 43 1 645004 8/25/20 1 7 Co-60 -J.23E+O l 6.79E+OO l.4 1 E+O I u TV ONS4-V 43 1 645004 8/25/20 1 7 C r-5 1 2.33E+O I 5.32E+O I 1.79E+02 u TV ONS4-V 43 1 645004 8/25/20 1 7 Cs-1 34 7.67E+OO 6.84E+OO 2.46E+O I u TV ONS4-V 43 1 645004 8/25/20 1 7 Cs-137 5.30E+OO 7.75E+OO 2.58E+O l u TY ONS4-V 43 1 645004 8/25/20 1 7 Fe-59 -1.46E+O I 1.1 l E+O I 2.88E+O I u TV ONS4-V 43 1 645004 8/25/20 1 7 1-1 3 1 8.1 6E+OO 9.86E+OO 3.34E+O I u TV ONS4-V 43 1 645004 8/25/2 01 7 K-40 3.4 0 E+03 2.68E+0 2 2.34E+0 2 TV ONS4-V 43 1 645004 8/25/20 1 7 La-1 40 l.43E+OO 8.27E+OO 2.79E+O I u TV ONS4-V 43 1 645004 8/25/20 17 M n-54 -5.83E+OO 5.99 E+OO l.80E+O I u TV ONS4-V 43 1 645004 8/25/20 1 7 Nb-95 6.59E+OO 6.82E+OO 2.3 1 E+O l u TV ONS4-V 43 1 645004 8/25/20 17 R u-1 03 -6.33E+OO 6.32E+OO 1.8 1 E+O I u TY ONS4-V 43 1 645004 8/25/20 1 7 Ru-1 06 7.49E+O I 6.08E+O l 2.07E+0 2 u TV ONS4-V 43 1 645004 8/25/2 017 Sb-1 24 -1.5 1 E+O I 1.58E+O I 4.23E+O l u TY ONS4-V 43 1 645004 8/25/20 1 7 Sb-1 25 -l.0 7E+O I 1.84E+O l 5.70E+O l u TY ONS4-V 43 1 645004 8/25/20 1 7 Se-75 4.58E-O I 7.29E+OO 2.42E+O I u TV ONS4-V 43 1 645004 8/25/20 1 7 Th-228 9.22E+OO l.44E+O I 4.22E+O I u TV ONS4-V 43 1 645004 8/25/20 17 Z n-65 3.07E+O l 1.30 E+O l 3.69E+O l u TV ONS4-V 43 1 645004 8/25/20 17 Zr-95 1.1 5E+O I l.32E+O I 4.42E+O l u TY ONS4-V 43 1 645005 8/25/20 1 7 Ac-228 -1.56E+O l 5.83E+O l 2.07E+02 u TY ONS4-V 43 1 645005 8/25/2 017 Ag-1 08 111 8.24E+OO l.1 4E+O l 3.98E+O I u TV ONS4-V 43 1 645005 8/25/20 1 7 Ag-11 0111 5.1 I E+OO l.82E+O l 5.4 1 E+O l u TV ONS4-V 43 1 645005 8/25/20 1 7 Ba-1 40 -1.1 3E+02 6.99E+Ol 1.80E+02 u TV ONS4-V 43 1 645005 8/25/20 1 7 Be-7 l.87E+03 2.60E+02 4.I OE+0 2 TV ONS4-V 43 1 645005 8/25/20 1 7 Ce-1 41 4.30E+OO 2.75E+O l 5.21E+O l u TV ONS4-V 43 1 645005 8/25/20 1 7 Ce-1 44 1.39E+02 7.43 E+O I 2.43E+02 u TV ONS4-V 43 1 645005 8/25/20 1 7 Co-57 7.0 I E+OO 9.85E+OO 3.27E+O l u TV ONS4-V 43 1 645005 8/25/20 1 7 Co-58 3.25E+Ol 1.20E+O l 4.29E+O l u TV ONS4-V 43 1 645005 8/25/20 1 7 Co-60 -8.23E+OO 1.38E+O l 4.1 2E+O l u TV ONS4-V 43 1 645005 8/25/20 1 7 Cr-5 1 -1.4 1 E+02 9.22E+O l 2.55E+02 u TV ONS4-V 43 1 645005 8/25/20 17 Cs-1 34 -I.09E+O l I.59E+O l 4.6 3E+O l u TV ONS4-V 43 1 645005 8/25/20 1 7 Cs-1 37 1.74E+O l 1.50E+O l 5.25E+O l u TV ONS4-V 43 1 645005 8/25/20 1 7 Fe-59 -1.45E+O I 2.65E+O l 8.26E+O I u D-65 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg) TV ONS4-V 43 1 645005 8/25/20 1 7 1-1 31 3.33 E+O I 2.7 1 E+OI 5.83E+O I u TV ONS4-V 43 1 645005 8/25/20 1 7 K-40 2.05E+03 3.3 1 E+02 3.3 1 E+02 TY ONS4-V 43 1 645005 8/25/2017 La-1 40 6.78 E+OO 2.32E+O I 7.89E+O I u TY ONS4-V 43 1 645005 8/25/20 1 7 Mn-54 -1.73 E+O I l.33E+OI 3.28E+O I u TV ONS4-V 43 1 645005 8/25/20 1 7 Nb-95 4.34E+O I 1.7 1 E+OI 5.8 1 E+O I u TV ONS4-V 431645005 8/25/2017 Ru-103 -2.69E+O I l.29E+OI 2.73E+O I u TV ONS4-V 431645005 8/25/2017 Ru-106 -2.61E+O I l.25E+02 3.99E+02 u TV ONS4-V 431645005 8/25/20 1 7 Sb-124 -2.67 E+O O 3.63E+OI l.1 7 E+02 u TV ONS4-V 43 1 645005 8/25/20 1 7 Sb-1 25 5.90 E+OI 5.58E+OI l.09 E+02 u TV ONS4-V 431645005 8/25/20 1 7 Se-75 -l.30 E+O I l.5 1 E+O I 4.26E+O I u TV ONS4-V 43 1 645005 8/25/20 1 7 T h-228 6.00E+O I 3.75E+O I 7.38E+OI u TV ONS4-V 43 1 645005 8/25/20 1 7 Z n-65 2.92E+O I 2.78E+OI l.02E+02 u TV ONS4-V 43 1 645005 8/25/20 1 7 Zr-95 l.4 1 E+O I 2.08E+O I 7.22E+O I u TV ONS4-V 43 1 645006 8/25/20 1 7 Ac-228 5.05 E+O l 3.5 1 E+Ol I .1 5E+02 u TV ONS4-V 43 1 645006 8/25/20 1 7 Ag-108m 5.65 E+OO 7.19E+OO 2.47E+Ol u TV ONS4-V 43 1 645006 8/25/2017 Ag-I I Om -l.60E+OO l.1 2E+OI 3.75E+OI u TY ONS4-V 431645006 8/25/2017 Ba-1 40 2.28 E+O I 3.31E+Ol l.1 3E+02 u TV ONS4-V 43 1 645006 8/25/20 1 7 Be-7 3.84E+03 2.64E+02 2.40 E+02 TV ONS4-V 43 1 645006 8/25/2017 Ce-141 -6.09E+OO l.34E+OI 4.03 E+O I u TV ONS4-V 431645006 8/25/2017 Ce-144 3.51 E+O I 4.60E+OJ l.5 1 E+02 u TY ONS4-V 431645006 8/25/2017 Co-57 -6.33E+OO 5.95E+OO l.76 E+O I u TV ONS4-V 431645006 8/25/2017 Co-58 -4.32E+OO 7.60E+OO 2.43E+OI u TV ONS4-V 431645006 8/25/2017 Co-60 2.33E+O I 8.80E+OO 3.25E+O I u TV ONS4-V 43 1 645006 8/25/20 17 C r-5 1 -7.03 E+O I 6.99E+O l 2.1 7E+02 u TV ONS4-V 43 1 645006 8/25/20 1 7 Cs-1 34 -3.04E-02 1.04E+O l 3.29E+O I u TV ONS4-V 43 1 645006 8/25/20 1 7 Cs-1 37 l.68E+OO 7.94E+OO 2.61E+OI u TV ONS4-V 431645006 8/25/20 1 7 Fe-59 2.24E+O I l.63E+O I 5.87 E+O I u TV ONS4-V 43 1 645006 8/25/20 1 7 1-1 3 1 -4.48 E+O O l.26E+O I 4.1 4E+OI u TV ONS4-V 431645006 8/25/2017 K-40 4.37E+03 3.48E+02 2.68 E+02 TV ONS4-V 43 1 645006 8/25/2017 La-140 -I.52 E+O I l.4 7 E+O I 3.87E+ol u TV ONS4-V 43 1 645006 8/25/20 1 7 Mn-54 3.09E+OO 8.I OE+OO 2.82E+O I u TV ONS4-V 43 1 645006 8/25/20 1 7 Nb-95 7.71E+OO 8.1 I E+OO 2.76E+O I u TV ONS4-V 43 1 645006 8/25/2017 Ru-103 8.36E+OO 8.06E+OO 2.77E+OI u TV ONS4-V 43 1 645006 8/25/2017 Ru-106 2.23E+02 8.20E+Ol l.7 1 E+02 Ul TV ONS4-V 43 1 645006 8/25/2017 Sb-124 -1.04 E+02 3.50E+OI 5.33 E+O I u TY ONS4-V 43 1 645006 8/25/20 1 7 Sb-1 25 5.05E+OO 2.55E+Ol 7.70E+O I u TV ONS4-V 43 1 645006 8/25/20 1 7 Se-75 6.33E+OO 9.96E+OO 3.47E+OI u TV ONS4-V 43 1 645006 8/25/20 1 7 T h-228 l.92E+OO 3.29E+O I 5.57E+OI u TY ONS4-V 43 1 645006 8/25/2017 Zn-65 3.78E+OO l.7 1 E+OI 5.78E+OI u TV ONS4-V 43 1 645006 8/25/2017 Z r-95 -6.06E+OO 1.1 8E+OI 3.46E+OI u TV OFSI-V 43 1 645007 8/25/20 1 7 Ac-228 l.06E+02 9.4 1 E+OI l.78E+02 u TV OFS I-V 431645007 8/25/2017 Ag-108m -5.90E+OO l.03 E+O I 3.1 9E+OI u TV OFS I-V 43 1 645007 8/25/20 1 7 Ag-I I Om 8.1 4E+OO I.73E+OI 5.46E+OI u TV OFS I-V 43 1 645007 8/25/20 1 7 Ba-1 40 3.04E+OI 5.23E+OI l.77E+02 u TV OFS I-V 43 1 645007 8/25/20 1 7 Be-7 2.63E+03 2.79E+02 3.59 E+02 TV OFS I-V 43 1 645007 8/25/20 1 7 Ce-141 -4.1 5E+O I l.94E+Ol 5.1 2E+OI u TV OFS I-V 43 1 645007 8/25/20 1 7 Ce-144 -9.9 1E+O I 6.3 1 E+OI l.85E+02 u TV OFS I-V 43 1 645007 8/25/20 1 7 Co-57 -2.20 E+OO 7.72E+OO 2.6 1 E+OI u TV OFS I-V 43 1 645007 8/25/20 1 7 Co-58 -1.48E+O I l.1 8E+O l 3.36E+OI u TV OFS I-V 43 1 645007 8/25/20 1 7 Co-60 -4.1 8E+OO l.6 1 E+O I 4.96E+O I u D-66 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 S A M P LE E ND C O NC ST D.D E V. MDC FLAG S TYPE STATION LS N DATE NUCL ID E (pC i/kg) (pCi/kg) (pCi/kg)

TV OFS I-V 43 1 645007 8/25/20 1 7 Cr-5 1 l.1 2E+02 l.1 4E+02 3.86E+02 u TV OFS I-V 43 1 645007 8/25/20 1 7 Cs-1 34 9.35E+OO 1.55E+O I 5.1 2E+O I u TV OFS I-V 43 1 645007 8/25/20 17 Cs-1 37 4.0 I E+OI l.62E+O I 3.04E+O I U l TV OFSI-V 43 1 645007 8/25/20 1 7 Fe-59 l.55E+OI 2.23E+O I 7.95E+O I u TV OFS I-V 43 1 645007 8/25/20 1 7 1-131 2.05E+OI I .66E+O I 5.73E+O I u TV OFS I-V 43 1 645007 8/25/20 1 7 K-40 l.86E+03 3.36E+02 6.38E+02 TV OFSI-V 431645007 8/25/2017 La-1 40 l.86E+O I 2.12E+O I 7.58E+O I u TV OFS1-V 431645007 8/25/20 1 7 Mn-54 5.63E+OO l.27E+O I 4.46E+O l u TV OFSI-V 431645007 8/25/20 1 7 Nb-95 1.64E+Ol 1.5 1 E+O l 5.1 2E+O l u TV OFS I-V 43 1 645007 8/25/20 1 7 Ru-1 03 5.7 1 E+OO l.1 7E+O l 3.94E+O l u TV OFS I-V 43 1 645007 8/25/20 1 7 Ru-1 06 -I .06E+02 9.95E+O l 2.72E+02 u TV OFS I-V 43 1 645007 8/25/20 1 7 Sb-1 24 2.37E+O I 3.08E+O l I. I OE+02 u TV OFSI-V 43 1 645007 8/25/20 1 7 Sb-1 25 -4.1 7E+OO 2.82E+O l 9.13E+O l u TV OFS I-V 43 1 645007 8/25/20 1 7 Se-75 -1.l OE+O l l .30E+O I 4.03E+O l u TV OFS I-V 431645007 8/25/20 1 7 Th-228 6.99E+OI 4.68E+O I 7.40E+O I u TV OFSI-V 431645007 8/25/2017 Zn-65 3.70E+OO 2.33E+OI 7.04E+O I u TV OFSI-V 43 1 645007 8/25/20 1 7 Zr-95 -l.9 1 E+OI 2.18E+O I 6.07E+O l u TV ONS3-V 434226001 1 0/3/2017 Ac-228 3.48E+Ol 3.99E+OI l.27E+02 u TV ONS3-V 434226001 1 0/3/20 1 7 Ag-1 08m -5.09E+OO 4.97 E+OO 1.47E+O I u TV ONS3-V 434226001 10/3/2017 Ag-llOm -I.59E+O I l.02E+O I 2.37E+O I u TV ONS3-V 43422600 1 1 0/3/20 1 7 Ba-140 -l.3 1 E+O I 2.5 1 E+O I 7.84E+O I u TV ONS3-V 43422600 1 1 0/3/20 1 7 Be-7 2.37E+03 2.0 I E+02 1.76E+02 TV ONS3-V 43422600 1 1 0/3/20 1 7 Ce-1 4 1 7.1 6E-OI l.09E+O I 3.24E+O I u TV ONS3-V 43422600 1 1 0/3/20 1 7 Ce-1 44 -4.1 8E+O I 4.30E+O I l.28E+02 u TY ONS3-V 43422600 1 1 0/3/2 01 7 Co-57 -2.24E+OO 5.57E+OO l.6 1 E+O I u TV ONS3-V 43422600 1 1 0/3/20 17 Co-58 -l.07E+O I 6.68E+OO 1.II E+O I u TV ONS3-V 43422600 1 1 0/3/20 1 7 Co-60 -l .63E+OO 6.29E+OO 2.00E+O I u TV ONS3-V 434226001 10/3/20 1 7 Cr-51 2.32E+OI 5.39E+O I l.87E+02 u TV ONS3-V 434226001 1 0/3/20 1 7 Cs-134 -3.45E+OO 7.32E+OO 2.2 1 E+O l u TV ONS3-V 434226001 1 0/3/20 1 7 Cs-137 -8.63E+OO 7.02E+OO l.90E+O I u TV ONS3-V 43422600 1 1 0/3/20 1 7 Fe-59 -2.44E+OO l.24E+O I 4.08E+O I u TV ONS3-V 43422600 1 1 0/3/20 1 7 1-131 -2.49E+OO 8.1 6E+OO 2.70E+O I u TV ONS3-V 43422600 1 10/3/20 1 7 K-40 l.70E+03 2.45E+02 2.21E+02 TV ONS3-V 434226001 1 0/3/20 1 7 La-1 40 -7.90E-O I 9.55E+OO 3.08E+O I u TV ONS3-V 43422600 1 1 0/3/20 1 7 M n-54 -7.04E+OO 7.54E+OO 2.1 2E+O l u TV ONS3-V 43422600 1 1 0/3/20 1 7 Nb-95 -9.82E+OO 8.0IE+OO l.84E+O I u TV ONS3-V 43422600 1 1 0/3/20 1 7 Ru-1 03 l.96E+OO 6.1 IE+OO 2.07E+O I u TV ONS3-V 43422600 1 1 0/3/20 1 7 R u-1 06 -3.59E+O I 7.06E+O l 1.92E+0 2 u TV ONS3-V 43422600 1 1 0/3/20 1 7 Sb-1 24 I .44E+OO 1.47E+O l 4.87E+O I u TV ONS3-V 43422600 1 1 0/3/20 1 7 Sb-125 4.56E+OO 2.03E+O I 6.2 1 E+O I u TV ONS3-V 434226001 1 0/3/20 1 7 Se-75 -1.1 7E+OI 8.27E+OO 2.46E+O I u TV ONS3-V 434226001 1 0/3/20 1 7 Th-228 -1.1 3E+Ol I.56E+O l 4.83E+O I u TV ONS3-V 434226001 1 0/3/20 1 7 Zn-65 -4.60E+OO l.40E+O I 4.53E+O I u TV ONS3-V 434226001 1 0/3/20 1 7 Zr-95 -2.23E+OO 1.1 5 E+O I 3.62E+O I u TV ONS3-V 434226002 1 0/3/20 1 7 Ac-228 7.09E+O I 4.67E+O I l.2 1 E+02 u TV ONS3-V 434226002 1 0/3/20 1 7 Ag-108m -2.57E+OO 5.47E+OO l.79E+O I u TV ONS3-V 434226002 1 0/3/20 1 7 Ag-I I Om -5.47E+OO 7.96E+OO 2.35E+O I u TV ONS3-V 434226002 1 0/3/20 17 Ba-1 40 3.4 1 E-O I 2.76E+O I 9.04E+O I u TV ONS3-V 434226002 1 0/3/20 17 Be-7 2.75E+03 2.04E+02 l.58E+02 TV ONS3-V 434226002 1 0/3/20 17 Ce-1 4 1 6.26E+OO 9.74E+OO 2.65E+O I u D-67 Donald C. Cook Nuclea r Plant Annual Radiological Environmental Opera ti ng Report 2017 SAMPLE E N D CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/kg) (pC i/kg) (pCi/kg) TV ONS3-V 434226002 10/3/2017 Ce-144 6.54E+O I 7.34E+Ol l.29E+02 u TV ONS3-V 434226002 10/3/2017 Co-57 7.13E+OO 5.1 4E+OO l.68E+Ol u TV ONS3-V 434226002 10/3/2017 Co-58 3.06E+OO 5.85E+OO 2.00E+OI u TV ONS3-V 434226002 10/3/2017 Co-60 3.40E+OO 6.31E+OO 2.26E+Ol u TV ONS3-V 434226002 10/3/2017 Cr-51 -6.03E+Ol 5.1 lE+Ol l.57E+02 u TV ONS3-V 434226002 1 0/3/20 1 7 Cs-134 3.59E+OO 8.54 E+OO 2.87E+Ol u TV ONS3-V 434226002 10/3/20 1 7 Cs-1 37 I.37E+Ol 7.47E+OO 2.44E+OI u TV ONS3-V 434226002 10/3/2017 Fe-59 7.47E-O I l.IOE+Ol 3.55E+Ol u TV ONS3-V 434226002 1 0/3/20 1 7 1-131 4.43 E+OO 7.03E+OO 2.46E+Ol u TV ONS3-V 434226002 10/3/2017 K-40 l.18E+03 2.24E+02 2.31E+02 TV ONS3-V 434226002 I 0/3/2017 La-140 4.51E+OO 9.1 9E+OO 3.25E+Ol u TV ONS3-V 434226002 10/3/2017 Mn-54 7.19 E-O l 5.58E+OO 1.85E+Ol U TV ONS3-V 434226002 10/3/20 1 7 Nb-95 -l.67E+OO 7.58E+OO 2.43E+OI U TV ONS3-V 434226002 10/3/2017 R u-10 3 5.93E+OO 5.93E+OO 2.07E+Ol U TV ONS3-V 434226002 10/3/2017 Ru-106 -9.32E+O I 6.64E+OI l.86E+02 U TV ONS3-V 434226002 10/3/2017 Sb-124 4.35E+OO l.26E+Ol 4.44E+Ol u TV ONS3-V 434226002 10/3/2017 Sb-1 25 -7.02E+OO 1.70E+Ol 5.58E+OI u TV ONS3-V 434226002 1 0/3/2017 Se-75 8.97E+OO 9.48E+OO 3.04E+Ol u TV ONS3-V 434226002 1 0/3/2017 Th-228 -4.72 E+OO l .49E+OI 4.56E+OI u TV ONS3-V 434226002 I 0/3/2017 Zn-65 3.92E+O I I.39E+OI 4.31E+OI u TV ONS3-V 434226002 10/3/20 1 7 Zr-95 -5.46 E+OO l.23E+OI 3.87E+Ol u TV ONS3-V 434226003 1 0/3/20 1 7 Ac-228 l.07E+02 7.81E+OI 2.07E+02 u TV ONS3-V 434226003 1 0/3/20 1 7 Ag-108m -9.95 E+OO 9.40E+OO 2.77E+Ol u TV ONS3-V 434226003 1 0/3/20 1 7 Ag-I I Om 8.90E+OO l.29E+Ol 4.47E+OI u TV ONS3-V 434226003 1 0/3/20 1 7 Ba-140 -2.24E+OI 4.40E+OI l.37E+02 u TV ONS3-V 434226003 1 0/3/20 1 7 Be-7 2.98E+03 2.79E+02 3.20E+02 TV ONS3-V 434226003 1 0/3/20 1 7 Ce-141 1.48E+O l 2.67E+Ol 4.99E+Ol u TV ONS3-V 434226003 1 0/3/2017 Ce-144 -I .20 E+02 7.02E+Ol 2.05E+02 u TV O N S3-V 434226003 1 0/3/2017 Co-57 -9.21E+OO 8.73E+OO 2.79E+Ol u TV O N S3-V 434226003 1 0/3/20 1 7 Co-58 5.26E+OO 9.83E+OO 3.34E+Ol u TV ONS3-V 434226003 1 0/3/20 1 7 Co-60 4.09E+OO 1.ll E+O I 3.9 1 E+Ol u TV ONS3-V 434226003 I 0/3/20 1 7 Cr-51 -I.31E+02 8.86E+OI 2.5 1 E+02 u TV ONS3-V 434226003 1 0/3/2017 Cs-1 34 l.38E+OO l.22E+OI 3.58E+Ol u TV ONS3-V 434226003 1 0/3/20 1 7 Cs-137 l.03E+02 3.09E+OI 7.9 1 E+OlDLUI TV ONS3-V 434226003 I 0/3/20 1 7 Fe-59 4.32 E+OO 2.18E+OI 7.09E+OI u TV ONS3-Y 43422600 3 I 0/3/20 1 7 1-1 31 -1.93E+O I I.39E+Ol 3.94E+OI U TV ONS3-V 434226003 1 0/3/20 1 7 K-40 5.18 E+03 4.92E+02 2.08E+02 TV ONS3-V 434226003 1 0/3/20 1 7 La-140 l.86 E+OO I.30E+Ol 4.44E+OI u TV ONS3-V 434226003 1 0/3/20 1 7 Mn-54 l.53E+O I I.35E+O I 4.6 1 E+OI u TV ONS3-V 434226003 1 0/3/2017 Nb-95 9.46E+OO 1.13E+Ol 3.86E+OI u TV ONS3-V 434226003 1 0/3/2017 R u-1 03 -1.09E+OI 9.23E+OO 2.58E+OI u TV ONS3-V 434226003 I 0/3/2017 R u-106 -5.76E+O I l.21E+02 3.32E+02 u TV ONS3-V 434226003 10/3/2017 Sb-124 -2.58E+O l 2.74E+OI 7.50E+Ol u TV ONS3-V 434226003 10/3/2017 Sb-125 -4.52E-O l 3.3 1 E+OI 1.I OE+02 u TV ONS3-V 434226003 1 0/3/20 1 7 Se-75 8.25E+OO 1.40E+OI 4.81E+OI u TV ONS3-V 434226003 1 0/3/2017 T h-228 2.27E+O I 3.1 l E+Ol 8.26E+OI u TV ONS3-V 434226003 1 0/3/20 1 7 Zn-65 -3.08E+OO 2.I OE+Ol 6.52E+Ol u TV ONS3-V 434226003 1 0/3/20 1 7 Zr-95 -3.33 E+O l 2.4 1 E+OI 6.36E+OI u TV ONS5-Y 434226004 1 0/3/2017 Ac-228 6.71E+O l 3.91E+Ol l.27E+02 u TV ONS5-Y 434226004 10/3/2017 Ag-1 08m -l.86E+OO 6.19E+OO l.98E+Ol u D-68 Don a ld C. Cook Nuclea r Plan t Annual Radiologi c al Env i ro n mental Operating Report 2017 S AMP LE EN D C ON C STD.DE V. MD C FLAGS T YP E STATION LSN DATE NUCL ID E (p Ci/kg) (pCi/kg) (pCi/kg) TV ONS5-V 434226004 1 0/3/20 1 7 Ag-I I Om -2.22E+OO 8.28E+OO 2.69E+O I u TV ONS5-V 434226004 1 0/3/20 1 7 Ba-1 40 6.29E+OO 2.95E+O I 9.67E+OI u TV ONS5-V 434226004 1 0/3/20 1 7 Be-7 5.7 0 E+02 l.33E+02 2.02E+0 2 TV ONS5-V 434226004 1 0/3/20 1 7 Ce-1 4 1 2.32E+O I l.78E+O I 3.0 I E+O I u TV ONS5-V 434226004 1 0/3/20 1 7 Ce-1 44 1.47E+O I 4.1 2E+O I l.3 1 E+02 u TV ONS5-V 434226004 1 0/3/20 1 7 Co-57 -2.42E+OO 5.44E+OO !.67E+O I u TV ONS5-V 434226004 1 0/3/20 1 7 Co-58 -5.27E+OO 7.00E+OO 2.1 6E+O I u TV ONS5-V 4 34226004 1 0/3/20 1 7 Co-60 2.69E+OO l.02E+O l 3.28E+O I u TV ONS5-V 434226004 1 0/3/20 1 7 C r-51 2.0 I E+O I 5.90E+O I 2.00E+02 u TV ONS5-V 434226004 1 0/3/20 1 7 Cs-134 -2.58E+OO 9.72E+OO 3.00E+O I u TV ONS5-V 434226004 1 0/3/20 1 7 Cs-137 5.05E+OO 7.08E+OO 2.38E+O I u TV ONS5-V 434226004 1 0/3/20 1 7 Fe-59 1.6 5 E+OI 1.74E+Ol 6.08E+O I u TV ONS5-V 434226004 1 0/3/20 1 7 1-131 5.25E+OO 8.1 2E+OO 2.77E+O I u TV ONS5-V 434226004 1 0/3/20 1 7 K-40 8.4 2E+03 6.47E+02 2.80E+02 TV ONS5-V 434226004 I 0/3/20 1 7 La-1 40 8.60E+OO l.21E+O I 4.18E+O I u TV ONS5-V 434226004 I 0/3/20 17 M n-54 I.8 1 E+OO 7.1 6E+OO 2.46E+O I u TV ONS5-V 4 34226004 1 0/3/20 1 7 Nb-95 -3.3 0 E+OO 8.1 I E+OO 2.66E+O I u TV ONS5-V 434226004 I 0/3/20 1 7 Ru-1 03 -5.92E+OO 6.44E+OO l.87E+O I u TV ONS5-V 434226004 I 0/3/20 1 7 Ru-1 06 -9.66E+O I 6.38E+OI l.58E+02 u TV ONS5-V 434226004 I 0/3/20 1 7 Sb-1 24 -2.83E+OO l.49E+O l 4.85E+O I u TV ONS5-V 434226004 1 0/3/20 1 7 Sb-1 25 2.82E+OO l.8 1 E+O I 5.98E+O I u TV ONS5-V 434226004 1 0/3/20 1 7 Se-75 -6.53E+OO 8.59E+OO 2.73E+O I u TV ONS5-V 434226004 1 0/3/20 1 7 Th-228 -4.32E+OO 1.46E+O I 4.89E+O I u TV ONS5-V 434226004 1 0/3/20 1 7 Z n-65 2.02E+OO 2.07E+O l 6.87E+O I u TV ONS5-V 434226004 1 0/3/20 1 7 Zr-95 -9.90E+OO 1.32E+O I 4.15E+O I u TV ONS5-V 434226005 1 0/3/20 1 7 Ac-228 -6.7 8E+O I 3.81E+O l 8.76E+O I u TV ONS5-V 434226005 I 0/3/20 1 7 A g-1 08m 1.09E+O I 7.85E+OO 2.72E+O I u TV ONS5-V 434226005 1 0/3/20 1 7 A g-I I Om 1.1 2E+OO I. I 7E+O I 3.77E+O I u TV ONS5-V 434226005 I 0/3/20 1 7 Ba-1 40 3.7 0 E+O I 3.67E+O l l.1 8E+02 u TV ONS5-V 434226005 I 0/3/20 1 7 Be-7 1.1 6E+03 2.04E+02 2.34E+02 TV ONS5-V 434226005 1 0/3/20 1 7 Ce-1 4 1 3.48E+OO l.27E+O I 4.1 I E+O I u TV ONS5-V 434226005 1 0/3/20 1 7 Ce-1 44 4.92E+O I 5.23E+O I 1.7 1 E+02 u TV ONS5-V 434226005 1 0/3/20 1 7 Co-57 7.32E-O I 6.84E+OO 2.21E+O I u TV ONS5-V 434226005 1 0/3/20 1 7 Co-58 -6.34E+OO 7.69E+OO 2.17E+O I u TV ONS5-V 434226005 1 0/3/20 1 7 Co-60 -9.33E-O I 9.49E+OO 3.1 3E+O I u TV ONS5-V 434226005 1 0/3/20 1 7 Cr-5 1 -7.80E+OI 7.7 1 E+O I 2.4 1 E+02 u TV ONS5-V 434226005 1 0/3/20 1 7 C s-1 34 5.84E+OO I.O I E+O I 3.4 1 E+O I u TV ONS5-V 4 34226005 1 0/3/20 1 7 Cs-137 2.15 E+OO 8.0 I E+OO 2.68E+O I u TV ONS5-V 434226005 1 0/3/20 1 7 Fe-59 -8.39E+OO l.S I E+O I 4.74E+O I u TV ONS5-V 434226005 1 0/3/20 1 7 1-1 31 -9.27E+OO 1.05E+O I 3.27E+O I u TV ONS5-V 434226005 1 0/3/20 1 7 K-40 l.89E+03 2.92E+02 2.60E+0 2 TV ONS5-V 434226005 1 0/3/20 1 7 La-1 40 -l.43E+O I 1.1 8E+O I 2.90E+OI u TV ONS5-V 434226005 1 0/3/20 17 M n-54 2.0 5E+O I 9.1 6E+OO 2.93E+OI u TV ONS5-V 434226005 1 0/3/20 1 7 Nb-95 1.2 1 E-O I 7.7 1 E+OO 2.50E+O I u TV ONS5-V 434226005 1 0/3/20 1 7 Ru-1 03 9.89E+OO 8.26E+OO 2.87E+O l u TV ONS5-Y 434226005 1 0/3/20 17 R u-1 06 l.5 1 E+02 8.84E+O I 3.02E+0 2 u TV ONS5-V 434226005 1 0/3/20 1 7 Sb-1 24 -7.2 1 E+O O 1.73E+O I 5.1 8E+O I u TV ONS5-V 434226005 1 0/3/20 1 7 Sb-1 25 -1.1 9E+O I 2.1 4E+O I 6.8 1 E+OI u TV ONS5-V 434226005 10/3/20 1 7 Se-75 -9.65E+OO I.02E+O I 3.25E+OI u TV ONS5-V 434226005 1 0/3/20 1 7 Th-228 3.5 7E+OO 3.34E+O I 6.44E+O I u D-69 Donald C. Cook Nuclear Plant Annual Radiological En v i ronmental Operatin g Report 20 1 7 SAMPLE E ND CONC STD.D EV. MDC FLAGS TYPE STATION LSN D ATE NUCLIDE (pCi/kg) (pCi/kg) (pCi/kg) TV ONS5-V 434226005 1 0/3/20 1 7 Z n-65 6.09E+OO 1.67E+O l 5.30E+OI u TV ONS5-V 434226005 1 0/3/20 1 7 Zr-95 -6.47E+OO l.63E+O l 5.06E+Ol u TV ONS5-V 434226006 1 0/3/20 1 7 Ac-228 -4.79E+O l 4.24E+O l 1.27E+02 u TV ONS5-V 434226006 1 0/3/20 1 7 Ag-1 08 111 5.1 3E+OO 7.1 l E+OO 2.47E+O I u TV ONS5-V 434226006 1 0/3/20 1 7 Ag-ll O m -8.24E+OO l.19E+O I 3.7 3E+O I u TV ONS5-V 434226006 1 0/3/20 1 7 Ba-1 40 -4.61 E+O I 3.72E+O I 8.76E+OI u TV ONS5-V 434226006 1 0/3/20 1 7 Be-7 2.27E+03 2.1 9 E+02 2.29E+02 TV ONS5-V 434226006 1 0/3/20 1 7 Ce-1 41 -7.22 E-0 1 1.03E+O I 3.36E+OI u TV ONS5-V 434226006 1 0/3/20 1 7 Ce-1 44 4.1 7 E+O l 4.13E+O l l.39E+02 u TV ONS5-V 434226006 1 0/3/2017 Co-57 3.42E+OO 4.97E+OO l.68E+OI u TV ONS5-V 434226006 1 0/3/20 1 7 Co-58 1.5 1 E+OO 7.1 6 E+OO 2.34E+OI u TV ONS5-V 434226006 1 0/3/20 1 7 Co-60 9.32 E+OO 9.06 E+OO 3.31E+O I u TV ONS5-V 434226006 1 0/3/2017 Cr-5 1 5.53 E+O l 6.37E+O I 2.24E+02 u TV ONS5-V 434226006 1 0/3/20 1 7 Cs-1 34 1.89 E+OO 8.96 E+OO 2.93E+O I u TV ONSS-V 434226006 1 0/3/20 1 7 Cs-137 1.59 E+OO 7.68E+OO 2.55E+OI u TV ONS5-V 434226006 1 0/3/20 1 7 Fe-59 3.2 1 E+O l 2.45E+O I 6.32E+OI u TV ONSS-V 434226006 1 0/3/20 1 7 1-13 1 3.77 E+OO 1.06E+O I 3.33E+OI u TV ONS5-V 434226006 1 0/3/20 17 K-40 6.56E+03 5.4 3E+02 2.1 4E+02 TV ONS5-V 434226006 1 0/3/20 1 7 La-1 40 -1.24 E+OO l.09 E+O I 3.43E+O I u TV ONS5-V 434226006 1 0/3/20 1 7 Mn-54 2.43E+OO 8.2 1 E+OO 2.69E+OI u TV ONS5-V 434226006 I 0/3/20 1 7 Nb-95 -2.04 E+OO 6.57E+OO l.74E+OI u TV ONS5-V 434226006 I 0/3/20 1 7 R u-1 03 -1.43 E+O I 8.29E+OO 2.l l E+O I u TV ONS5-V 434226006 1 0/3/20 1 7 R u-1 06 -1.98 E+O I 5.85E+O l I .83E+02 u TV ONS5-V 434226006 1 0/3/20 1 7 S b-1 24 -2.21 E+O l l.72E+O l 3.28E+OI u TV ONS5-V 434226006 1 0/3/20 1 7 S b-1 25 -l.1 9 E+O l 2.1 8E+O l 6.97E+OI u TV ONS5-V 434226006 1 0/3/20 1 7 Se-75 -4.09 E+OO 1.02E+O l 3.08E+OI u TV ONS5-V 434226006 1 0/3/20 1 7 Th-228 1.29 E+O l 2.44E+OI 5.3 1 E+OI u TV ONSS-V 434226006 1 0/3/20 1 7 Zn-65 l.42E+O I l.79E+O I 6.39E+O I u TV ONS5-V 434226006 1 0/3/20 17 Z r-95 l.85E+O I 1.59E+O I 5.49E+OI u TV OFS I-V 434226007 1 0/3/2017 Ac-228 3.04 E+O I 3.72E+O I l.l 4E+02 u TV OFS I-V 434226007 1 0/3/20 1 7 Ag-1 08m 4.56E+OO 6.04E+OO 2.07E+O I u TV OFS I-V 434226007 1 0/3/20 1 7 Ag-11 0111 6.43 E-03 9.86E+OO 3.33E+OI u TV OFS I-V 434226007 1 0/3/20 1 7 Ba-1 40 -2.60E+O I 2.53 E+O I 7.1 6E+Ol u TV OFS L-V 434226007 1 0/3/20 1 7 Be-7 3.05 E+03 2.23E+02 1.65E+02 TV OFS I-V 434226007 1 0/3/20 1 7 Ce-1 41 -1.1 6E+O l 1.25E+O I 3.3 1 E+OI u TV OFS I-V 434226007 1 0/3/20 1 7 Ce-1 44 l.49E+O I 3.39E+O I I .1 0E+02 u TV OFS I-V 434226007 1 0/3/20 1 7 Co-57 5.46 E+OO 4.88E+OO 1.60E+OI u TV OFS I-V 434226007 1 0/3/20 1 7 Co-58 -4.37E+OO 6.32E+OO 1.97E+OI u TV OFS I-V 434226007 1 0/3/20 1 7 Co-60 -2.1 2E+O I 1.08 E+O l 2.29E+OI u TV OFS I-V 434226007 1 0/3/20 1 7 Cr-51 -9.75E+OO 5.23E+O l l.74E+02 u TV OFS I-V 434226007 1 0/3/20 1 7 Cs-1 34 -3.06E+O O 7.63E+OO 2.4 9E+OI u TV OFS I-V 434226007 1 0/3/20 1 7 Cs-1 37 -1.26E+OO 7.69E+OO 2.43E+OI u TV OFS I-V 434226007 1 0/3/20 1 7 Fe-59 7.76 E-0 1 l.52E+O I 5.07E+O I u TV OFS I-V 434226007 1 0/3/20 1 7 1-1 3 1 -9.60E+OO 8.52E+OO 2.1 8E+O I u TV OFS I-V 434226007 1 0/3/20 1 7 K-40 2.74 E+03 3.07E+02 l.94E+02 TV OFS I-V 434226007 1 0/3/20 1 7 La-1 40 -1.34E+OO 8.48E+OO 2.64E+OI u TV OFS 1-V 434226007 1 0/3/20 1 7 M n-54 -3.23E+OO 5.94E+OO l.88E+O I u TV OFS I-V 434226007 1 0/3/20 1 7 Nb-95 -6.26E+O O 7.80E+OO 2.1 3E+OI u TV OFS 1-V 434226007 1 0/3/20 1 7 R u-1 03 5.35 E+OO 5.63E+OO J.95 E+O I u TV OFS I-V 434226007 1 0/3/20 17 R u-1 06 2.40 E+O l 7.23E+O I 2.38E+02 u D-70 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCL ID E (pCi/kg) (pCi/kg) (pCi/kg) TV OFSI-V 434226007 10/3/20 1 7 Sb-1 2 4 2.0 I E+OI l.38 E+OI 5.40 E+O I u TV OFSl-V 434226007 10/3/20 1 7 Sb-125 -l.99 E+OI 1.99 E+O I 5.96E+O l u TV OFSl-V 4 3 4226007 10/3/2017 Se-75 -1. I O E+Ol 8.26 E+OO 2.47E+O l u TV OFSI-V 434226007 1 0/3/20 1 7 Th-228 2.47E+Ol 2.58 E+O I 4.37E+O l u TV OFSI-V 434226007 I 0/3/20 1 7 Zn-65 3.90E+OO l.62 E+O I 5.50E+O I u TV OFSI-V 434226007 I 0/3/20 1 7 Z r-95 5.77 E+OO l.37 E+O I 4.5 1 E+O I u D-71 Donald C. Cook Nuclea r Plant Annual Radiological Env i ronmenta l Operating Report 2 017 S AMP LE E ND CONC STD.D E V. MD C FL AGS TYPE S TA TIO N LS N DAT E NU C LID E (pCi/L) (pC i/L) (p Ci/L) WD STJ 413792023 1/4/20 1 7 Ac-228 -1.8 1 E+OO 3.86E+OO I.IOE+OI u WD STJ 413792023 1/4/20 1 7 A g-1 08m -5.36E-O I 6.47E-O I 2.03E+OO u WD STJ 413792023 1/4/20 1 7 Ag-11 0111 -1.1 3E+OO 9.26E-0 1 2.5 1 E+OO u WD STJ 4 1 3792023 1/4/20 1 7 Ba-1 40 3.03E-O I 3.59E+OO 1.1 9E+OI u WD STJ 413792023 1/4/2 01 7 Be-7 -6.1 4E+O O 6.22E+O O I.9 0 E+O I u WD ST J 413792023 1/4/2 01 7 BETA 3.02E-O I 8.1 2E-O I 2.58E+OO u WO STJ 4 1 3792023 1/4/20 1 7 Ce-1 4 1 -l.76E+OO 1.79E+OO 3.83£+00 u WD STJ 413792023 1/4/20 1 7 Ce-1 44 -7.49£+00 5.33£+00 l.53E+OI u WD STJ 413792023 1/4/2 01 7 Co-57 -4.34£-0 1 6.6 1 E-O I 2.05£+00 u WD STJ 413792023 1/4/2 01 7 Co-58 -2.77 E-O I 7.1 9E-O I 2.23£+00 u WD STJ 4 1 3792023 1/4/2 01 7 Co-60 5.60£-0 1 6.1 9£-0 1 2.0 I E+OO u WD STJ 413792023 1/4/2 01 7 C r-5 1 9.23E-O I 6.55£+00 2.23£+01 u WD STJ 4 1 3792023 1/4/20 1 7 Cs-134 -1.95£-02 7.67£-0 1 2.46E+OO u WD STJ 4 1 3792023 1/4/20 1 7 Cs-1 37 3.78£-0 1 7.86£-0 1 2.6 1 E+OO u WD STJ 413792023 1/4/20 1 7 F e-59 2.56E+OO I.8 1 E+OO 4.74E+OO u WD STJ 4 1 3792023 1/4/20 1 7 1-1 3 1 7.42 E-0 1 1.47E+OO 5.0 I E+OO u WD STJ 4 1 3792023 1/4/2 01 7 K-40 -5.08E+OO I.08E+O I 3.52E+OI u WD STJ 413792023 1/4/2 01 7 La-1 40 7.80E-O I 1.1 5£+00 3.60E+OO u WO STJ 413792023 1/4/20 1 7 M n-54 4.1 7£-0 1 7.1 2E-O I 2.35£+00 u WD ST J 413792023 1/4/20 1 7 Nb-95 5.52 E-02 7.3 1£-01 2.36E+OO u WD STJ 4 1 3792023 1/4/20 1 7 R u-10 3 -7.84E-0 1 8.1 2E-0 1 2.17 E+OO u WD ST J 413792023 1/4/20 17 R u-1 06 l.24 E+OO 6.33£+00 2.09E+OI u WD STJ 41379202 3 1/4/20 1 7 Sb-1 24 -4.28E-O I l.52E+OO 4.79£+00 u WD ST J 413792023 1/4/20 17 S b-1 25 -9.43E-O I 1.93E+O O 6.24E+OO u WD STJ 4 1 3792023 1/4/2 0 1 7 Se-75 -9.1 9£-0 1 9.2 7 E-OI 2.98E+OO u WD STJ 413792023 1/4/20 17 T h-228 4.06E+OO 3.07£+00 5.0 I E+OO u WD ST J 413792023 1/4/20 1 7 Z n-65 9.37 E-OI I.20E+OO 3.87£+00 u WD STJ 413792023 1/4/20 1 7 Zr-95 -1.26£+00 1.3 2£+00 3.86E+OO u WD STJ 4 1 3792024 1/4/20 1 7 1-131 -1.64£-0 1 2.27£-0 1 7.93E-OI u WD LTW 4 1 3792025 1/4/20 1 7 Ac-228 -2.6 1£+00 4.84£+00 l.36E+O I u WD LTW 4 1 3 7 92025 1/4/2 01 7 Ag-1 08 m 2.02E-O I 8.22£-01 2.70£+00 u WD LTW 413792025 1/4/201 7 Ag-I !Om -5.34E-O I 1.18£+0 0 3.78£+00 u WD LTW 4 1 3792025 1/4/2 01 7 Ba-1 40 -1.40E+OO 5.03£+0 0 1.59£+0 1 u WD LTW 4 1 3792025 1/4/20 1 7 Be-7 -7.03 E+OO 8.68£+00 2.65£+0 1 u WD LTW 4 1 3792025 1/4/20 1 7 BETA 1.63 E+OO 9.59E-O I 2.70 E+OO u WD LTW 413 7 92025 1/4/20 1 7 C e-1 41 -4.45£+00 2.1 6E+OO 5.50£+00 u WD LTW 4 1 3792025 1/4/20 1 7 Ce-1 44 5.24£-0 1 6.77E+OO 2.1 3£+0 1 u WD LTW 413792025 1/4/2 017 Co-57 l.1 8E+OO 9.35£-0 1 2.93£+00 u WD LTW 4 1 3792025 1/4/20 1 7 Co-58 8.07£-0 1 I.06E+OO 2.58£+00 u WD LTW 413792025 1/4/20 1 7 Co-60 8.64 E-O I 1.04£+00 3.53£+00 u WD LTW 4 1 3792025 1/4/20 1 7 C r-51 1.1 2 E+O I 9.1 9E+OO 3.06£+0 1 u WO LTW 4 1 3792025 1/4/20 1 7 Cs-134 -I.78E-0 1 1.36E+OO 3.32E+OO u WD LTW 4 1 3792025 1/4/20 1 7 Cs-1 37 -I.1 6E+OO I.O I E+OO 3.1 I E+OO u WD LTW 413792025 1/4/2 0 1 7 Fe-59 -3.1 6E-0 1 l.82E+OO 5.88E+OO u WO LTW 413792025 1/4/2 0 1 7 1-1 3 1 -l.66 E+OO 1.8 1£+00 5.60£+00 u WD LTW 4 1 3792025 1/4/20 1 7 K-40 -6.28 E+OO 1.83£+0 1 5.8 1£+01 u WD LTW 4 1 3792025 1/4/20 1 7 La-1 40 -9.46 E-02 I.45E+OO 4.84E+OO u WD LTW 4 1 3792025 1/4/20 1 7 Mn-54 -6.07 E-0 1 9.59E-O I 3.06E+OO u WD LTW 4 1 3792025 1/4/20 1 7 Nb-95 -l.9 2E+OO l.56E+OO 3.34E+OO u WD LTW 413792025 1/4/20 17 R u-1 03 l.26E-O I 1.1 I E+OO 3.60E+OO u D-7 2 Don a ld C. Cook Nucle ar Plant Annual Radiological Environmental Op e rating Report 2017 SAMPLE END CONC STD.D EV. MDC FLAGS T Y PE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L)

WD LTW 413792025 1/4/20 1 7 R u-I 06 -5.96E+OO l.06E+O I 2.84E+O I u WD LTW 413792025 1/4/20 17 Sb-1 24 4.14E+OO 2.64E+OO 9.32E+OO u WD LTW 4 1 3792025 1/4/20 1 7 Sb-1 25 -4.1 4E+OO 2.76E+OO 7.79E+OO u WD LTW 413792025 1/4/20 17 Se-75 -l.20E+OO l.20E+OO 3.78E+OO u WD LTW 4 1 3792025 1/4/20 1 7 T h-228 6.6 1 E+OO 4.06E+OO 6.20E+OO U I WO LTW 4 1 3792025 1/4/20 1 7 Z n-65 -3.33E+OO 2.31E+OO 6.38E+OO u WD LTW 413792025 1/4/20 17 Z r-95 l.04E+OO l.55E+OO 5.37E+OO u WD LTW 413792026 1/4/20 17 1-131 -l.0 8E-O I 2.21E-O I 7.59E-O I u WO STJ 4 1 4678023 1/18/20 17 Ac-228 l.25E+O I 8.59E+OO l.57E+OI u WD STJ 4 1 4678023 1/18/20 17 Ag-1 08m l.96E+OO 9.68E-0 1 3.07E+OO u WO STJ 414678023 1/18/20 17 Ag-ll Om 7.85E-02 l.17 E+OO 3.90E+OO u WO STJ 4 1 4678023 1/18/20 1 7 Ba-1 40 4.25E-OI 4.95E+OO l.60E+OI u WO STJ 4 1 4678023 1/18/20 1 7 Be-7 -1.30E+OI 9.75E+OO 2.81E+O I u WD STJ 4 1 4678023 1/18/20 17 BETA l.79E+OO l: 05E+OO 3.0IE+OO u WO STJ 4 1 4678023 1/18/20 1 7 Ce-1 4 1 2.48E+OO l.96E+OO 5.63E+OO u WD STJ 4 1 4678023 1/18/20 1 7 Ce-144 -l.43E+OO 6.98E+OO 2.17 E+O I u WD STJ 414678023 1/18/20 17 Co-57 l.92E-OI 9.93E-OI 2.89E+OO u WD STJ 4 1 4678023 1/18/20 17 Co-58 2.I I E-01 9.70E-O I 3.28E+OO u WD STJ 4 1 4678023 1/18/20 1 7 Co-60 l.87 E-OI I .1 3E+OO 3.70 E+OO u WD STJ 414678023 1/18/20 17 C r-51 -2.33E+OO 8.88E+OO 2.91E+OI u WD STJ 4 1 4678023 1/18/20 I 7 Cs-134 -1.72 E-OI l.28E+OO 3.75E+OO u W O STJ 4 1 4678023 1/18/20 1 7 Cs-1 37 1.47 E+OO l.07E+OO 3.66 E+OO u W O STJ 4 1 4678023 1/18/20 1 7 Fe-59 3.37E+OO 2.1 5E+OO 7.25E+OO u WD STJ 414 678023 1/18/20 1 7 1-131 -I .50E-02 l.59E+OO 5.23E+OO u WD STJ 414678023 1/18/20 1 7 K-40 3.47E+OI 2.44E+O I 3.06E+Ol UI WD STJ 4 1 4678023 1/18/20 1 7 La-140 -1.61E+OO l.71E+OO 5.17E+OO u W D STJ 4 1 4678023 1/18/20 1 7 M n-54 -3.06E-OI I.OOE+OO 3.29E+OO u W D STJ 4 1 4678023 1/18/20 1 7 Nb-95 -4.70E+OO l.89 E+OO 3.06E+OO u WD STJ 4 1 4678023 1/18/20 17 Ru-103 4.99E-OI 9.96E-OI 3.27E+OO u WD STJ 4 1 4678023 1/18/20 17 Ru-106 -1.43E+O I 9.92E+OO 2.70E+O I u WD STJ 4 1 4678023 1/18/20 1 7 Sb-1 24 -5.49E-OI 2.2 1 E+OO 7.21E+OO u W D STJ 4 1 4678023 1/18/20 1 7 Sb-125 2.23 E+OO 2.66E+OO 8.83E+OO u WD STJ 4 1 4678023 1/18/20 17 Se-75 -I .08E+OO l.29E+OO 4.12E+OO u W D STJ 414678023 1/18/20 1 7 Th-228 -l.31E+OO 2.23E+OO 6.57E+OO u W O STJ 414678023 1/18/20 1 7 Z n-65 8.35E-01 2.1 5E+OO 6.39E+OO u W D ST J 4 1 4678023 1/18/20 1 7 Z r-95 -I .5 7 E+OO l.83E+OO 5.7 4 E+OO u W O STJ 4 1 4678024 1/18/20 1 7 1-1 3 1 -l.27 E-01 2.40E-O I 8.17£-0 1 u W D LTW 4 1 4678025 1/18/20 17 Ac-228 4.40E+OO 5.05 E+OO l.lOE+O I u W D LTW 4 1 4678025 1/18/20 1 7 A g-108m -7.06E-OI 7.41E-0 1 2.29£+00 u W O LTW 414678025 1/1 8/20 17 Ag-I !Om -8.03E-01 l.07E+OO 3.39E+OO u W O LTW 4 1 4678025 1/18/20 1 7 Ba-1 40 -l.54E+OO 3.49E+OO 1. IO E+OI u WD LTW 414678025 1/18/20 17 Be-7 -1.12£-0 I 6.95E+OO 2.29E+OI u WD LTW 4 1 4678025 1/18/20 17 BETA 9.70E-O I 9.86E-OI 3.02E+OO u WD LTW 4 1 4678025 1/18/20 1 7 Ce-141 -9.63£-01 l.59E+OO 4.52E+OO u W O LTW 4 1 4678025 1/18/20 17 Ce-144 -2.29E+OO 5.78E+OO l.83E+OI u W O LTW 4 1 4678025 1/1 8/20 17 Co-57 -7.53£-01 7.02 E-O I 2.1 I E+OO u WD LTW 4 1 4678025 1/1 8/20 1 7 Co-58 2.67E-O I 7.99£-0 1 2.47E+OO u WD LTW 4 1 4678025 1/18/2 0 1 7 Co-60 -6.40£-0 1 6.58E-O I l.85 E+OO u WO LTW 4 1 4678025 1/1 8/20 1 7 C r-5 1 -9.54£+00 7.56£+00 2.32E+OI u WD LTW 4 1 4678025 1/18/20 17 Cs-134 -7.26E-OI 9.82 E-OI 2.70 E+OO u 0-7 3 Donald C. Cook Nuclear Plant Annual Radiological En v i r onment a l Operatin g Repo rt 2017 SAMPLE E ND CONC STD.D EV. MDC FLAGS TYPE STATION LSN DAT E NUCLIDE (pCi/L) (pCi/L) (pCi/L) WD LTW 4 1 4678025 1/18/2017 Cs-137 9.75E-O I 8.46E-O I 2.83E+OO u WD LTW 4 1 4678025 1/18/2017 Fe-59 5.57 E-01 1.41E+OO 4.83E+OO u WD LTW 4 1 4678025 1/18/20 1 7 1-1 31 5.74 E+OO 3.22E+OO 4.32E+OO UI WD LTW 4 1 4678025 1/18/20 1 7 K-40 8.1 3E+OO J.31E+O I 3.87E+O I u WD LTW 414678025 1/18/2017 La-1 40 -l.58E+OO l.36E+OO 3.67E+OO u WD LTW 414678025 1/18/20 I 7 Mn-54 l.60E+OO 8.18 E-OI 2.79 E+OO u WD LTW 4 14 678025 1/18/2 017 N b-95 3.25E+OO l.77E+OO 2.28E+OO UJ WD LTW 4 1 4678025 1/18/2017 Ru-103 -2.45E+OO l.12E+OO 2.28 E+OO u WD LTW 4 1 4678025 1/18/2017 Ru-10 6 5.88E+OO 7.36E+OO 2.46E+OI u WD LTW 4 1 4678025 1/18/2017 Sb-1 24 -l.35E+OO 2.19 E+OO 6.50 E+OO u WD LTW 4 1 4678025 1/18/2017 S b-1 25 -l.25E+OO 2.28E+OO 7.30E+OO u WD LTW 4 1 4678025 1/18/2 0 I 7 Se-75 3.43E-O l 9.88E-01 3.41E+OO u WD LTW 4 1 4678025 1/18/2017 T h-22 8 -2.66E+OO J.97E+OO 5.55E+OO u WD LTW 4 1 4678025 1/18/2017 Z n-65 5.99E-O I J.70E+OO 5.1 3E+OO u WD LTW 4 1 4678025 1/18/2017 Z r-95 5.72E-01 l.41E+OO 4.61E+OO u WD LTW 4 14 678026 1/1 8/2017 1-1 3 1 -3.49E-OI 2.4 1 E-OI 8.48E-OI u WO STJ 415694023 2/1/20 1 7 Ac-228 2.32E+OO 3.93E+OO l.17 E+O I u WD ST J 4 1 5694023 2/1/2017 Ag-1 08m -3.04E-01 1.14 E+OO 2.53 E+OO u WD STJ 4 1 5694023 2/1/20 1 7 Ag-11 0111 -5.00E-0 2 I.lOE+OO 3.48E+OO u WD STJ 4 1 5694023 2/1/20 1 7 Ba-140 -2.73E-OI 3.14 E+OO l.0 2E+OI u WD ST J 4 1 5694023 2/1/20 1 7 Be-7 4.56E+OO 7.23E+OO 2.42 E+O I u WD STJ 4 1 5694023 2/1/20 1 7 B ETA l.06E+OO 8.19 E-01 2.38E+OO u WD STJ 4 1 5694023 2/1/2017 Ce-141 7.9 1 E+OO 2.73E+OO 4.37 E+OO UI WD STJ 4 1 5694023 2/1/20 1 7 Ce-1 44 -2.20E+OO 6.4 1 E+OO 1.96E+OI u WD STJ 4 1 5694023 2/1/20 1 7 Co-57 -8.56E-OI 9.00E-01 2.65E+OO u WD STJ 4 1 5694023 2/1/20 1 7 Co-58 -1.55E+OO 8.63E-OI 2.07E+OO u WD STJ 4 1 5694023 2/1/2017 Co-60 3.58E-O I 8.59E-O I 2.95E+OO u WD STJ 4 1 5694023 2/1/20 1 7 Cr-S J 6.I I E-0 1 7.67E+OO 2.57E+O I u WD STJ 4 1 5694023 2/1/2017 Cs-1 34 1.0I E-01 7.90E-OI 2.55E+OO u WD STJ 4 1 5694023 2/1/20 1 7 Cs-1 37 1.1 4E+OO 8.28E-OI 2.79 E+OO u WD STJ 4 1 5694023 2/1/20 1 7 Fe-59 -4.51 E-0 1 J.61 E+OO 5.29 E+OO u WD STJ 4 1 5694023 2/1/20 17 1-131 -4.1 2E-O I J.32E+OO 4.IO E+OO u WD STJ 4 1 5694023 2/1/20 1 7 K-40 l.57E+OO 1.3 I E+O I 2.69E+Ol u WD STJ 4 1 5694023 2/1/2017 La-1 40 -J.43 E+OO I.I I E+OO 2.90E+OO u WD STJ 4 1 5694023 2/1/2017 Mn-5 4 -5.27E-O I 9. 16 E-OI 2.41E+OO u WD STJ 4 1 5694023 2/1/2017 Nb-95 9.83E-O I 7.92E-OI 2.67E+OO u WD STJ 4 1 5694023 2/1/2017 R u-1 03 -I .59 E+OO 9.52E-OI 2.5 9E+OO u WD STJ 4 1 5694023 2/1/20 1 7 Ru-10 6 2.1 4E+OO 7.1 5E+OO 2.36E+O I u WD STJ 4 1 5694023 2/1/2017 S b-1 24 -8.37E-Ol 2.3 1 E+OO 6.25 E+OO u WD STJ 4 1 5694023 2/1/20 1 7 S b-1 25 1.1 8E+OO 2.74E+OO 6.69E+OO u WD STJ 4 1 5694023 2/1/2017 Se-7 5 3.85E-0 1 l.03E+OO 3.5 1 E+OO u WD ST J 4 1 5694023 2/1/20 1 7 Th-228 -l.48E+OO l.90E+OO 5.90E+OO u WD ST J 4 1 5694023 2/1/2017 Z n-65 -4.98E-O l l.78 E+OO 5.1 l E+OO u WD STJ 415694023 2/1/2017 Zr-95 -1.02E+OO l.52E+OO 4.57 E+OO u WD ST J 4 1 5694024 2/1/2017 1-131 -1.34E-02 5.3 6E-02 J.78E-O I u WD LTW 4 1 5694025 2/1/2017 Ac-228 l.8 1 E+OO 4.31E+OO 1.36 E+OI u WD LTW 4 1 5694025 2/1/20 1 7 Ag-10 8m -8.59E-O l 7.22E-O I 2.1 5E+OO u WO LTW 4 1 5694025 2/1/2017 Ag-11 0111 -1.29 E+OO l.15E+OO 3.44 E+OO u WD LTW 415694025 2/1/2017 Ba-140 -2.1 3E+OO 4.1 6E+OO J.32E+O I u WD LTW 4 1 5694025 2/1/2017 Be-7 6.23E+OO 7.67E+OO 2.61E+OI u D-7 4 Don a ld C. Cook N uclear Plant Annual Radiologic a l Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LS N DATE NUCL ID E (pC i/L) (pCi/L) (pCi/L) WD LTW 4 1 5694025 2/1/20 17 B E TA -l.57E+OO 6.5 1 E-O I 2.57 E+OO u WO LTW 4 1 5694025 2/1/20 1 7 Ce-1 4 1 -7.64E-OI l.61E+OO 5.07E+OO u WD LTW 4 1 5694025 2/1/20 1 7 Ce-144 8.56E+OO 5.8 0E+OO l.87E+O l u WD LTW 4 1 5694025 2/1/20 1 7 Co-57 -l.03E+OO 8.08E-O I 2.40E+OO u WO LTW 4 1 5694025 2/1/20 1 7 Co-58 -6.7 1 E-OI 8.5 1 E-O I 2.48E+OO u WD LTW 4 1 5694025 2/1/20 1 7 Co-60 4.2 1 E-OI 6.6 1 E-O I 2.33E+OO u WD LTW 4 1 5694025 2/1/20 1 7 Cr-51 -l.72E+OO 7.85E+OO 2.65E+OI u WD LTW 4 1 5694025 2/1/20 1 7 Cs-1 34 -1.1 3E+OO l.03E+OO 2.9 0E+O O u WD LTW 4 1 5694025 2/1/20 1 7 Cs-1 37 -l.23E+OO l.04E+OO 2.95E+OO u WO LTW 4 1 5694025 2/1/20 1 7 Fe-59 -l.49E+OO l.65E+OO 4.95 E+O O u WD LTW 415694025 2/1/20 1 7 1-13 1 7.79E-01 l.38E+OO 4.73E+OO u WD LTW 4 1 5694025 2/1/20 1 7 K-40 5.3 1 E+OO l.56E+O l 2.45E+O l u W D LTW 4 1 5694025 2/1/20 1 7 La-140 -l.89E+OO l.51 E+OO 3.05E+OO u W D LTW 4 1 5694025 2/1/20 1 7 Mn-54 -6.95E-01 8.97E-O I 2.62 E+OO u W D LTW 4 1 5694025 2/1/20 1 7 Nb-95 -7.4 1 E-0 I l.1 8E+OO 3. I 5E+OO u W D LTW 4 1 5694025 2/1/20 1 7 R u-103 -1.27E-01 9. I 7 E-0 1 3.0 I E+OO u WD LTW 4 1 5694025 2/1/20 1 7 Ru-106 -5.52E+OO 8.I OE+OO 2.48 E+O I u WD LTW 4 1 5694025 2/1/20 17 Sb-1 24 -1.74E+OO 2.00E+OO 4.84E+OO u W D LTW 4 1 5694025 2/1/20 1 7 Sb-1 25 -2.89E+OO 2.50E+OO 6.55E+OO u W D LTW 4 1 56940 25 2/1/2017 Se-75 -1.00 E+OO l.20E+OO 3.1 8E+OO u WD LTW 4 1 5694025 2/1/20 1 7 Th-228 1.23E+OO 2.27E+OO 6.30 E+OO u WD LTW 4 1 5694025 2/1/20 1 7 Z n-65 2.55E+OO 2.1 4E+OO 6.82E+OO u WD LTW 4 1 5 69 4025 2/1/20 1 7 Z r-95 2.62E+OO 1.64E+OO 5.53 E+OO u WD LTW 4 1 5694026 2/1/20 1 7 1-1 3 1 4.42E-02 6.1 3E-02 l.99E-0 1 u WD STJ 4 1 6948023 2/1 5/20 1 7 Ac-228 -7.50E+OO 6.47E+OO l.69E+O l u WD STJ 4 1 6948023 2/15/20 1 7 Ag-108m 3.90E-01 l.05E+OO 3.50E+OO u WD STJ 416948023 2/1 5/20 1 7 Ag-I I Om 2.13E+OO l.59 E+OO 5.77 E+OO u WD ST J 4 1 6948023 2/1 5/20 1 7 Ba-1 40 8.59E+OO 6.8 1 E+OO 2.3 1 E+O I u WD STJ 4 1 6948023 2/15/20 1 7 Be-7 7.5 1 E+OO l.1 4E+OI 3.8 1 E+O l u WD STJ 4 1 6948023 2/1 5/20 1 7 B E TA 2.49E+OO I. I O E+OO 3.03E+OO u WD STJ 4 1 6948023 2/15/20 1 7 Ce-1 4 1 -6.59E-02 2.21 E+OO 7.13E+OO u WD STJ 4 1 6948023 2/15/20 1 7 Ce-1 44 -7.08E+OO 8.27E+OO 2.64 E+O I u WD ST J 4 1 6948023 2/1 5/20 1 7 Co-57 -l.08E-O I l.08 E+OO 3.65E+OO u WD ST J 4 1 6948023 2/15/20 1 7 Co-58 3.60E+OO l.67E+OO 3.17 E+OO UJ WD STJ 4 1 6948023 2/15/20 1 7 C o-60 8.9 1 E-01 l.20E+OO 4.28E+O O u WD STJ 4 1 6948023 2/15/20 1 7 Cr-5 1 -4.71 E+OO 1.1 9 E+O I 3.80E+O l u WD STJ 41694802 3 2/15/20 1 7 Cs-134 8.88E-02 1.09E+OO 3.73 E+OO u WD STJ 4 1 6948023 2/15/20 1 7 Cs-1 37 2.89E-02 l.50 E+OO 4.27E+OO u WD STJ 4 1 6948023 2/15/20 1 7 Fe-59 4.74E-01 2.32E+OO 7.92E+OO u WD STJ 4 1 6948023 2/15/20 1 7 1-13 1 -2.08E+OO 2.38E+OO 7.22E+OO u WD STJ 4 1 6948023 2/15/20 1 7 K-40 1.1 6E+OI I .35E+O I 4.77E+O I u WD STJ 4 1 6948023 2/15/20 1 7 La-1 40 4.73£-01 l.65E+OO 5.63E+OO u WD STJ 4 1 6948023 2/15/20 1 7 Mn-54 5.1 9E-0 1 I .47E+OO 5.I O E+OO u WD STJ 4 1 6948023 2/15/20 1 7 Nb-95 -2.27E-OI l.20 E+OO 4.02 E+OO u WD STJ 4 1 6948023 2/15/20 17 R u-1 03 l.27E+OO l.5 1 E+OO 5.07 E+OO u WD STJ 4 1 6948023 2/15/20 1 7 R u-1 06 -5.30E-O I 1.27 E+OI 4.04 E+O I u WD STJ 4 1 6948023 2/15/20 1 7 Sb-1 24 2.75E+OO 2.7 1 E+OO 9.98E+OO u WD STJ 4 1 6948023 2/15/20 1 7 Sb-1 25 l.67E+OO 3.26E+OO 9.95E+OO u WD STJ 4 1 6948023 2/1 5/20 1 7 Se-75 -1.I OE+OO l.63E+OO 5.1 3E+OO u WD STJ 4 1 6948023 2/1 5/20 1 7 Th-228 -3.57E+OO 2.79E+OO 8.35 E+O O u D-75 Donald C. Cook N u clear Pl a nt Annual Radiological En vi ronmental Ope r atin g Report 201 7 SAMPLE E ND CONC ST D.D EV. MD C FLAGS TYPE STATI ON LS N D ATE NU CLIDE (pCi/L) (pC i/L) (pCi/L) WD STJ 416948023 2/15/20 1 7 Z n-65 l.07E+OO 2.1 2E+OO 7.46E+OO u WD STJ 4 1 6948023 2/1 5/20 1 7 Z r-95 3.2 1£-0 1 2.28E+OO 7.33E+OO u WD STJ 416948024 2/15/20 1 7 1-13 1 1. I 9E-04 2.04£-04 6.64£-04 u WD LTW 4 1 6948025 2/1 5/20 1 7 Ac-228 -1.05£+0 1 5.48E+OO I .46E+O I u WD LTW 4 1 6948025 2/1 5/20 I 7 Ag-1 08m -7.99 E-O I 8.71£-0 1 2.63E+OO u WD LTW 4 1 6948025 2/15/20 1 7 Ag-I !Om l.24E+OO l.27 E+OO 4.55E+OO u WD LTW 4 1 6948025 2/15/20 1 7 Ba-1 40 8.77£-0 1 5.23E+OO 1.7 3E+O I u WD LTW 4 1 6948025 2/15/20 1 7 Be-7 I.40E+O I 9.4IE+OO 3.2 0 E+O I u WD LTW 4 1 6948025 2/15/20 1 7 B E TA 3. I 7E+OO l.22E+OO 3.4 1 E+OO u WD LTW 4 1 6948025 2/1 5/20 1 7 Ce-1 41 l.83 E+OO 1.96E+OO 6.32E+OO u WD LTW 4 1 6948025 2/15/20 1 7 Ce-1 44 -I.09 E+OO 6.7 3E+OO 2.1 3E+O l u WD LTW 4 1 6948025 2/I 5/20 1 7 Co-57 3.29£-0 1 8.47£-0 1 2.75E+OO u WD LTW 4 1 6948025 2/1 5/20 1 7 Co-58 -I.56 E+OO 9.96£-0 1 2.68E+OO u WD LTW 4 1 6948025 2/15/20 1 7 Co-60 l.5 IE-0 1 1.08E+OO 3.59E+OO u WD LTW 4 1 6948025 2/1 5/20 1 7 C r-5 1 8.28 E+OO 9.53E+OO 3.29E+O I u WD LTW 4 1 6948025 2/15/20 1 7 Cs-134 -3.32£-0 1 l.23E+OO 3.79E+OO u WD LTW 4 1 6948025 2/15/20 1 7 Cs-137 -2.32£-0 1 l.24 E+OO 3.94E+OO u WD LTW 4 1 6948025 2/15/20 17 Fe-59 -l.94E+OO I.99E+OO 5.77E+OO u WD LTW 416948025 2/15/20 1 7 1-1 3 1 8.44£-01 l.85E+OO 6.30E+OO u WD LTW 4 1 6948025 2/15/20 1 7 K-40 -I.70 E+O I l.58 E+O l 5.04E+O I u WD LTW 4 1 6948025 2/1 5/20 1 7 La-1 40 -2.49£-0 1 I.7 0 E+OO 5.37E+OO u WD LTW 416948025 2/1 5/20 1 7 Mn-54 -1.7 1 E-01 1.02E+OO 3.42E+OO u WD LTW 4 1 6948025 2/15/20 1 7 Nb-95 l.63E+OO l.29 E+OO 4.30E+OO u WD LTW 416948025 2/15/20 1 7 Ru-I 03 -8.58£-0 1 l.09 E+OO 3.3 1 E+OO u WD LTW 4 1 6948025 2/15/20 17 R u-I 06 -2.25 E+O O 1.03E+O I 2.89E+O l u WD LTW 416948025 2/15/20 17 S b-1 24 -3.26 E+OO 2.82 E+OO 7.24E+OO u WD LTW 4 1 6948025 2/15/20 17 S b-1 25 -3.70E+OO 3.0 I E+OO 8.80 E+OO u WD LTW 4 1 6948025 2/1 5/20 1 7 Se-75 1.75£-0 1 1.1 4E+OO 3.9 1 E+OO u WD LTW 416948025 2/15/20 1 7 T h-228 6.96£-0 1 2.7 6 E+OO 6.74E+OO u WD LTW 416948025 2/1 5/20 1 7 Z n-65 l.58 E+OO I.75 E+OO 6.27E+OO u WD LTW 4 1 6948025 2/1 5/20 1 7 Z r-95 4.95£-0 1 I .44E+OO 4.76E+OO u WD LTW 4 1 6948026 2/1 5/20 1 7 1-13 1 -7.22£-05 2.57E-04 8.52£-04 u WD STJ 417740023 3/1/20 1 7 Ac-228 -3.15 E+OO 4.1 2E+OO l.20E+Ol u WD STJ 4 1 7740023 3/1/20 17 A g-108m -I.74 E-O l 5.68£-0 1 l.89E+OO u WD STJ 4 1 7740023 3/1/20 17 A g-I !Om I. 1 5E-O l 9.88E-O I 3.2 1 E+OO u WD STJ 4 1 7740023 3/1/20 1 7 Ba-1 40 9.42 E+OO 4.06E+OO 1.32E+OI u WD STJ 4 1 7740023 3/1/20 1 7 Be-7 -1.64 E+OO 6.07E+OO 2.0l E+OI u WD ST J 4 1 7740023 3/1/2 017 B E TA -1.25£-0 1 l.03E+OO 3.42E+OO u WD STJ 4 1 7740023 3/1/20 1 7 Ce-1 4 1 -4.8 1£-02 l.28 E+OO 4.1 7 E+O O u WD STJ 4 1 7740023 3/1/2017 Ce-1 44 -5.08 E+OO 4.72E+OO l.44E+OI u WD ST J 4 1 7740023 3/1/20 17 Co-57 -3.82E-O I 6.87£-0 1 2.20E+OO u WD ST J 41774002 3 3/1/20 1 7 Co-58 l.35 E+OO 7.05£-0 1 2.43E+OO u WD ST J 417740023 3/1/20 1 7 Co-60 -1.1 5£+00 9.29£-0 1 2.58E+O O u WD STJ 41 7740023 3/1/20 1 7 C r-51 -6.1 9E+OO 7.33E+OO 2.1 3E+O I u WD ST J 4 1 7740023 3/1/20 I 7 Cs-1 34 -I.74E-O I 8.75£-0 1 2.80 E+OO u WD STJ 4 1 7740023 3/1/20 1 7 Cs-1 37 l.56E+OO 8.3 1£-01 2.8 1 E+OO u WD ST J 4 1 7740023 3/1/20 1 7 Fe-59 2.1 9 E-O I l.33 E+OO 4.58E+OO u WD STJ 4 1 7740023 3/1/20 1 7 1-1 31 6.35£-0 1 I. I I E+OO 3.87E+OO u WD STJ 4 1 7740023 3/1/20 1 7 K-40 I.90E+O I l.47E+O I 2.42 E+O I u WD ST J 4 1 7740023 3/1/20 1 7 La-1 40 -9.38£-0 1 I.1 7E+OO 3.07E+OO u D-76 Donald C. Cook Nuclear Plant Annual Radiolog i cal Environmental Operating Report 2017 SAMPLE E ND CONC STD.DEV. MDC FLAGS TYPE STATION LSN DAT E NUCLIDE (pC i/L) (pCi/L) (pCi/L) WD STJ 41774002 3 3/1/2017 Mn-54 -8.24£-03 7.IO E-01 2.29E+OO u WD STJ 417740023 3/1/20 1 7 Nb-95 -6.44£-03 7.75£-01 2.52E+OO u WD ST J 4 1 7740023 3/1/20 17 R u-1 03 -9.58£-0 2 7.67£-0 1 2.5 6E+OO u WD STJ 4 1 7740023 3/1/20 1 7 R u-10 6 -5.0 I E+OO 6.46E+OO 1.98E+O l u WD STJ 4 1 7740023 3/1/20 1 7 Sb-1 24 -4.04£-01 1.51E+OO 4.74E+OO u WD STJ 417740023 3/1/20 1 7 Sb-1 25 -5.30£-02 2.1 6E+OO 6.58E+OO u WD ST J 417740023 3/1/20 1 7 Se-75 -4.55£-01 9.51E-Ol 2.91E+OO u W D STJ 417740023 3/1/20 1 7 Th-228 I.OJ E+OO 3.02 E+OO 5.36E+OO u WD STJ 4 1 7740023 3/1/20 1 7 Z n-65 -2.28E+OO l.65E+OO 4.7 1 E+OO u WD STJ 417740023 3/1/20 1 7 Zr-95 9.53£-0 1 l.37 E+OO 4.65E+OO u WD STJ 417740024 3/1/2017 1-131 7.56£-02 1.86 E-Ol 5.79£-0 1 u WD LTW 417740025 3/1/20 1 7 Ac-228 -2.42E+OO 4.42 E+OO l.23 E+Ol u WD LTW 417740025 3/1/20 17 Ag-1 08m -3.59£-01 8.23E-Ol 2.35E+OO u WD LTW 417740025 3/1/2017 Ag-I I Om -3.14£-01 l.04E+OO 3.20E+OO u WO LTW 4 1 7740025 3/1/20 1 7 Ba-140 -2.34 E+OO 4.37 E+OO 1.21 E+Ol u WO LTW 417740025 3/1/20 1 7 Be-7 3.06£-01 7.39 E+OO 2.44E+O l u WO LTW 4 1 7740025 3/1/20 17 B E TA 1.8 4E+OO 1.14 E+OO 3.41E+OO u WD LTW 4 1 7740025 3/1/20 1 7 Ce-141 -9.36£-0 1 l.79E+OO 4.79E+OO u WD LTW 417740025 3/1/20 17 Ce-14 4 5.87 E+OO 6.57E+OO 2.09E+Ol u WD LTW 4 1 7740025 3/1/20 17 Co-57 -8.34£-02 8. l lE-01 2.55 E+OO u WD LTW 417740025 3/1/20 1 7 Co-58 -1.62£-02 8.77£-01 2.80E+OO u WD LTW 4 1 7740025 3/1/20 1 7 Co-60 -9.8 1£-01 l.1 4E+OO 3.0lE+OO u WO LTW 4 1 7740025 3/1/20 1 7 Cr-5 1 9.40 E+OO 8.07 E+OO 2.74E+O l u WD LTW 4 1 7740025 3/1/20 17 Cs-134 -4.14E-OI 9.85E-Ol 2.88E+OO u WD LTW 417740025 3/1/20 17 Cs-1 37 5.51E-Ol 7.93£-0 1 2.6 7 E+OO u WD LTW 417740025 3/1/20 17 Fe-59 -1.04 E-O 1 l.37E+OO 4.56E+OO u WD LTW 4 1 7740025 3/1/20 1 7 1-131 7.19 E-Ol l.3 0 E+OO 4.44E+OO u WD LTW 4 1 7740025 3/1/20 17 K-40 l.89E+O l l.66E+Ol 2.80 E+Ol u WD LTW 417740025 3/1/20 17 La-140 -8.87£-01 l.27E+OO 3.77E+OO u WD LTW 4 1 7740025 3/1/20 17 Mn-54 -2.38£-0 2 7.9 5E-Ol 2.53E+OO u WD LTW 4 1 7740025 3/1/20 17 N b-95 7.18£-02 8.96£-01 2.89E+OO u WD LTW 4 177 40025 3/1/20 17 Ru-1 03 -l .53E+OO 1.0I E+OO 2.39E+OO u WD LTW 41 7740025 3/1/20 17 Ru-1 06 1.9 3E+O l 8.95E+OO 2.89E+Ol u WD LTW 4 1 7740025 3/1/20 1 7 Sb-124 3.69E-O l 1.82E+OO 6.09E+OO u WD LTW 417740025 3/1/20 1 7 Sb-1 25 4.30E+OO 2.1 8E+OO 7.26E+OO u WD LTW 417740025 3/1/20 1 7 Se-75 -2.30£-0 1 1.08E+OO 3.63E+OO u WD LTW 4 1 7740025 3/1/20 1 7 Th-228 4.30E+OO 3.25E+OO 6.52E+OO u WO LTW 417740025 3/1/20 1 7 Zn-65 3.65£-0 1 l .45E+OO 4.46E+OO u WD LTW 417740025 3/1/20 1 7 Zr-95 1.74 E+OO 1.48E+OO 5.00E+OO u WD LTW 4 177 40026 3/1/20 1 7 1-13 1 1.80£-0 1 2.45E-O l 7.49£-01 u WD STJ 4 1 8792023 3/15/20 17 Ac-228 7.22E+OO 9.67E+OO l.8 1 E+Ol u WD ST J 4 1 8792023 3/15/20 17 A g-108111 2.09£-01 9.87 E-Ol 3.41E+OO u WD STJ 4 1 8792023 3/15/20 17 Ag-11 0 111 9.65E-01 l.77E+OO 5.43E+OO u WD STJ 4 1 8792023 3/15/20 1 7 Ba-1 40 7.24E+OO 5.54E+OO 1.95E+O l u WD ST J 4 18 792023 3/15/20 1 7 Be-7 1.27E+O l 9.26E+OO 3.29E+O l u WD ST J 418792023 3/15/20 17 B E TA -2.4 1 E-01 6.27E-01 2.1 2E+OO u WD STJ 418792023 3/1 5/20 17 Ce-1 4 1 -3.03E+OO 2.1 9E+OO 6.1 4E+OO u WD ST J 418792023 3/15/20 17 Ce-1 44 3.44E+OO 6.76E+OO 2.29E+O l u WO STJ 4 1 8792023 3/15/20 1 7 Co-57 -3.00E-01 8.6 1 E-Ol 2.82E+OO u WD ST J 4 1 8792023 3/1 5/20 17 Co-58 -3.1 4 E-Ol 9.84E-OI 3.08 E+OO u D-77 Donald C. Cook Nuclear Plant Annual Radiological Environmental Opera t ing Report 2017 SAMPLE E ND CONC ST D.D EV. MDC FLAGS TYPE STATION LSN D ATE NUCLIDE (p C i/L) (pC i/L) (p C i/L) WD STJ 4 1 879202 3 3/15/20 1 7 C o-6 0 -1.03£+00 9.1 9E-O I 2.39 E+OO u WD STJ 4 1 879202 3 3/15/20 1 7 C r-51 l.07 E+O I 9.86 E+OO 3.26E+Ol u WD STJ 41879202 3 3/15/2017 C s-134 -4.67£-0 1 1.1 9£+00 3.73 E+OO u WD S TJ 4 1 879202 3 3/1 5/20 1 7 Cs-137 3.16£-01 1.36 E+OO 4.1 3 E+OO u WD S TJ 4 1 879 2 02 3 3/1 5/20 17 F e-59 -5.40£-0 1 2.0 l E+OO 6.1 2E+OO u WD ST J 4 1 879202 3 3/15/20 1 7 1-1 3 1 -1.90 E+OO 2.l 5E+OO 6.1 4 E+OO u WD ST J 4 1 8792023 3/1 5/20 1 7 K-40 -8.75 E+OO l.65 E+OI 5.1 9£+01 u WD STJ 4 1 8792023 3/15/20 1 7 L a-1 4 0 2.93 E-02 I .38 E+OO 4.58E+OO u WD STJ 4 1 879202 3 3/15/20 17 M n-54 I.I O E+OO 9.95E-O I 3.52E+OO u WD STJ 4 1 8792023 3/1 5/20 17 N b-95 8.00E+OO 2.30 E+OO 2.24E+OO UT WD STJ 4 1 879 2 023 3/15/20 17 R u-1 0 3 -6.32£-0 1 9.99£-0 1 3.1 7 E+OO u WD STJ 4 1 879202 3 3/15/2017 R u-1 0 6 -1.I IE+O I 9.83 E+OO 2.82E+OI u WD S TJ 4 1 879202 3 3/15/20 1 7 Sb-1 24 -3.21E+OO 2.9 1 E+OO 7.55E+OO u WD STJ 4 1 8792023 3/15/20 1 7 Sb-1 25 -6.55E-O I 2.82E+OO 9.47E+OO u WD STJ 4 1 8792023 3/15/20 1 7 Se-75 8.50 E-01 I .45E+OO 4.77E+OO u WD STJ 4 1 879202 3 3/15/20 17 T h-2 28 l.66 E+OO 3.l 4 E+OO 7.94 E+OO u WD STJ 41879 2 023 3/15/20 1 7 Z n-65 2.79 E+OO 2.70E+OO 9.27 E+OO u WD STJ 4 1 8792023 3/15/2017 Z r-95 l.60 E+OO l.67E+OO 5.76 E+OO u WD STJ 4 1 8792024 3/15/20 1 7 1-1 3 1 -3.89£-0 1 2.27E-O I 8.34£-01 u WD LTW 41879202 5 3/15/20 1 7 Ac-2 28 8.95 E+OO 5.32 E+OO l.89 E+OI u WD LTW 4 1 879 2 025 3/15/20 17 A g-1 08m 1.3 1 E+OO l.24E+OO 4.1 9E+OO u WD LTW 4 1 879202 5 3/1 5/20 1 7 A g-l l Om I .55 E+OO l.77E+OO 6.27E+OO u WD LTW 4 1 8792025 3/15/20 1 7 Ba-1 40 -3.28£+00 6.l 6 E+OO l.88E+Ol u WD LTW 4 1 8792025 3/1 5/20 1 7 Be-7 I.I OE+O I l.23E+O I 4.13E+OI u WD LTW 4 1 87920 2 5 3/15/20 17 B E TA 1.39£+00 I.O I E+OO 2.97E+OO u WD LTW 4 1 8792025 3/15/20 1 7 Ce-1 41 -4.73 E-O l 2.27£+00 6.8 1 E+OO u WD LTW 4 1 879 2 025 3/15/20 1 7 C e-1 44 4.46E+OO 8.60E+OO 2.95E+OI u WD LTW 4 1 8792025 3/1 5/20 1 7 C o-57 -1.24£+00 l.09 E+OO 3.37 E+OO u WD LTW 4 1 8792025 3/15/20 1 7 C o-58 -1.95£+00 l.46E+OO 3.40E+OO u WD LTW 4 1 8792025 3/15/20 1 7 C o-60 -1.16£-0 I I .36E+OO 4.45E+OO u WD LTW 4 1 8792025 3/15/20 1 7 C r-51 1.1 2 E+O I 1.1 lE+O I 3.76E+O I u WD LTW 4 1 8792025 3/15/20 1 7 Cs-134 3.l9 E+OO l.67E+OO 5.09E+OO u WD LTW 4 1 8792025 3/15/20 1 7 Cs-1 3 7 -l.38 E+OO l.5 1 E+OO 4.33E+OO u WD LTW 4 1 8792025 3/1 5/20 1 7 Fe-59 -1.49E+OO 2.66E+OO 7.57E+OO u WD LTW 4 1 87920 2 5 3/15/20 1 7 1-1 3 1 6.1 9£-0 1 2.1 5E+OO 7.1 4E+OO u WD LTW 4 1 8792025 3/15/20 I 7 K-40 -2.37E+O I 2.I OE+O I 6.0IE+O I u WD LTW 4 1 8792025 3/15/2017 La-1 40 2.84E-01 1.53 E+OO 5. I 7 E+OO u WD LTW 4 1 8792025 3/15/20 1 7 Mn-54 -l.19E-O I I.O I E+OO 2.96 E+OO u WD LTW 4 1 8 7 9 2 025 3/15/20 1 7 Nb-9 5 l.09E-O I l.30 E+OO 3.95 E+OO u WD LTW 4 1 8792025 3/15/2017 R u-I 0 3 8.1 3E-O I l.36E+OO 4.54 E+OO u WD LTW 4 1 8792025 3/1 5/2017 Ru-1 0 6 -4.83 E+OO 9.84E+OO 2.96 E+O I u WD LTW 4 1 879202 5 3/15/2017 Sb-1 2 4 -2.03 E+O O 3.48E+OO l.03 E+O I u WD LTW 4 1 8 7 92025 3/1 5/20 1 7 Sb-1 25 -2.1 2E+OO 3.58£+00 1.1 I E+O I u WD LTW 4 1 8792025 3/15/20 1 7 Se-75 l.27 E+OO 1.6 1 E+OO 5.46E+OO u WD LTW 4 1 87920 2 5 3/15/20 17 T h-2 28 8.68 E+OO 5.1 7 E+OO 9.96 E+OO u WD L TW 4 1 8792025 3/1 5/20 1 7 Z n-65 2.7 1 E+OO 2.75 E+OO 9.00 E+OO u WD LTW 4 1 87920 25 3/1 5/20 1 7 Z r-9 5 -5.72E+OO 2.70E+OO 5.34E+OO u WD LTW 4 1 879202 6 3/15/20 1 7 1-13 1 -1.36£-0 1 2.53£-0 1 8.56£-0 1 u WD ST J 4 1 965502 3 3/29/2 0 1 7 Ac-228 4.08£-0 1 3.72E+OO l.06 E+O J u WD ST J 4 1 965502 3 3/29/20 17 A g-1 08m 3.74£-0 1 6.59£-0 1 2.23E+OO u D-78 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DAT E NUCLIDE (pCi/L) (pCi/L) (pCi/L) WD STJ 4 1 9655023 3/29/20 17 Ag-l!Om -7.68£-01 l.02E+OO 3.22E+OO u WD STJ 419655023 3/29/20 1 7 Ba-1 40 6.28£-01 3.99E+OO 1.32E+OI u WD STJ 419655023 3/29/20 17 Be-7 -6.2 1 E+OO 7.56E+OO 2.05E+OI u WD STJ 4 1 9655023 3/29/20 1 7 BETA l.13 E+OO 4.0 I E-0 1 l.20E+OO u WD STJ 4 1 9655023 3/29/20 17 Ce-141 -l.67E+OO l.75E+OO 4.75E+OO u WD STJ 41 9655023 3/29/20 17 Ce-144 -5.96£-01 5.03E+OO 1.6 1 E+O I u WD STJ 419655023 3/29/20 1 7 Co-57 4.03E-OI 6.90£-0 1 2.25E+OO u WD STJ 419655023 3/29/20 17 Co-58 9.48£-0 1 7.61 E-01 2.68E+OO u WD STJ 4 1 9655023 3/29/20 1 7 Co-60 -l.5 3E+OO l.09 E+O O 2.48E+OO u WD STJ 4 1 9655023 3/29/20 1 7 C r-51 1.53E+OO 7.38E+OO 2.5 1 E+O I u WD STJ 4 1 9655023 3/29/20 1 7 Cs-1 34 -l.65E+OO 1.2 1 E+O O 2.85E+OO u WD ST J 419655023 3/29/20 1 7 Cs-137 -5.9 1 E-0 1 8.02 E-01 2.4IE+OO u WD STJ 4 1 9655023 3/29/20 1 7 Fe-59 2.55£-01 I .40E+OO 4.7 1 E+OO u WD ST J 419655023 3/29/20 1 7 1-13 1 -4.6 1£-01 l.65E+OO 4.30E+OO u WD STJ 4 1 9655023 3/29/20 17 K-40 l.80 E+O I l.38 E+O I 2.73E+O I u WD STJ 419655023 3/29/20 17 La-14 0 l.36E+OO I .40E+OO 4.82E+OO u WD STJ 419655023 3/29/20 17 M n-54 l.98 E+OO 8.54E-0 1 2.84E+OO u WD STJ 419655023 3/29/20 1 7 Nb-95 1.22E+OO 8.52E-0 1 2.83E+OO u WD STJ 4 1 9655023 3/29/20 1 7 Ru-I 03 1.46E+OO 9.69£-0 1 2.96E+OO u WD STJ 4 1 9655023 3/29/20 17 R u-1 06 3.3 1 E+OO 6.91 E+OO 2.29E+O I u WD STJ 419655023 3/29/20 1 7 S b-1 24 4.95£-0 1 l.53E+OO 5.09E+OO u WD STJ 4 1 9655023 3/29/20 1 7 Sb-1 25 5.15E+OO 4.58 E+OO 7.87E+OO u WD STJ 4 1 9655023 3/29/2017 Se-7 5 -9.83£-01 l.02E+OO 3.29E+OO u WD STJ 419655023 3/29/20 1 7 Th-228 6.6 8E+OO 3.23E+OO 5.7 6E+OO Ul WD ST J 419 6 55023 3/29/20 1 7 Z n-65 -2.23E+OO 1.57 E+OO 4.26E+OO u WD STJ 4 1 9655023 3/29/20 1 7 Z r-95 -3.03£-01 l.50E+OO 4.1 3E+OO u WD STJ 4 1 9655024 3/29/20 1 7 1-131 -1.35£-01 1.2 1 E-0 I 4.09£-01 u WD LTW 419655025 3/29/20 17 Ac-228 5.03E+OO 7.44E+OO l.09E+OI u WD LTW 419655025 3/29/20 1 7 Ag-108m -6.39£-01 7.83E-0 1 2.47E+OO u WD LTW 419 655025 3/29/20 17 Ag-I !O m -9.09£-02 l.25E+OO 4.18 E+OO u WD LTW 419655025 3/29/20 1 7 Ba-1 40 -8.13E-OI 4.0 I E+OO l.30E+O I u WD LTW 419 655025 3/29/20 1 7 Be-7 1.27E+OI 8.1 9E+OO 2.73 E+OI u WD LTW 419 655025 3/29/20 17 BETA 1.22E+OO 4.37E-O I l.32E+OO u WD LTW 419655025 3/29/20 1 7 Ce-1 4 1 -3.38E+OO 1.8 1 E+OO 4.1 6E+OO u WD LTW 4196550 25 3/29/20 17 Ce-14 4 5.85E+OO 4.88E+OO l.62E+OI u WD LTW 419 655025 3/29/2017 Co-57 4.87£-02 5.83E-01 l.96E+OO u WD LTW 4 1 9655025 3/29/20 1 7 Co-58 1.59E-OI 9.04 E-OI 3.09E+OO u WD LTW 419655025 3/29/20 1 7 Co-60 -9.1 2E-OI l.04E+OO 3.IOE+OO u WD LTW 4 1 9655025 3/29/2017 C r-51 4.05E+OO 7.68 E+OO 2.42E+O I u WD LTW 4 1 9655025 3/29/20 1 7 Cs-1 34 2.05E+OO l.08E+OO 3.67E+OO u WD LTW 4 1 9655025 3/29/20 17 C s-1 37 -1.80 E-01 9.99E-O I 2.8 1 E+OO u WD LTW 419655025 3/29/20 17 Fe-5 9 -l.90E+OO 2.1 8E+OO 6.62E+OO u WD LTW 4 1 9655025 3/29/20 17 1-1 3 1 -l.60E+OO l.49 E+OO 4.69E+OO u WD LTW 4 1 9655025 3/29/20 17 K-40 -1.5 1 E+O I 1.47E+OI 4.36E+OI u WD LTW 4196 55025 3/29/2017 La-140 -1.80E+OO l.66E+OO 4.86E+OO u WD LTW 4 1 9655025 3/29/20 17 Mn-54 -4.45£-01 8.59E-OI 2.79E+OO u WD LTW 4 1 9655025 3/29/2017 Nb-95 -1.47 E+OO I.OI E+OO 2.67E+OO u WD LTW 4 1 9655025 3/29/20 17 Ru-I 03 -1.71 E+O O 1.05 E+OO 2.93E+OO u WD LTW 4 1 9655025 3/29/20 1 7 Ru-I 06 l.5 6E-O I 7.74E+O O 2.5 1 E+O I u WD LTW 4 1 9655025 3/29/20 1 7 Sb-124 -l.03E+OO 2.1 2E+OO 6.67E+OO u D-79 Donald C. Cook Nuclear Plant Annual Radiological Env i ronmental Operat i ng Repo rt 2017 SAMPLE E ND CONC STD.D EV. MDC FLAGS TYPE STATION LSN D ATE NUCLIDE (pCi/L) (pC i/L) (pCi/L) WD LTW 419655025 3/29/20 1 7 Sb-1 25 -1.08E+OO 2.42E+OO 7.92E+OO u WD LTW 419655025 3/29/20 1 7 Se-75 4.93E-O I l.1 8E+OO 3.75E+OO u WD LTW 4 1 9655025 3/29/20 1 7 T h-228 -l.47E+OO 2.1 4E+OO 5.4 1 E+OO u WD LTW 4 1 9655025 3/29/20 1 7 Z n-65 -1.89E+OO 2.48E+OO 5.52E+OO u WD LTW 4 1 9655025 3/29/20 1 7 Z r-95 8.49E-O I l.69E+OO 5.53E+OO u WD LTW 4 1 9655026 3/29/20 1 7 1-13 1 -5.55E-02 1.63E-01 5.39E-OI u WD STJ 42 3 1 8000 1 3/29/20 17 H-3 l.62E+02 l.37E+02 4.29E+02 u WD LTW 423 1 80002 3/29/20 17 H-3 2.34E+02 l.39E+02 4.23E+02 u WD STJ 420768023 4/12/20 1 7 Ac-228 4.46E+OO 6.26E+OO 2.02E+OI u WD STJ 420768023 4/12/20 17 A g-1 08m 9.36£-0 1 1.1 6E+OO 4.0IE+OO u WD STJ 420768023 4/12/20 1 7 Ag-l lOm -5.97E-02 l.68E+OO 5.38£+00 u WD STJ 420768023 4/12/20 1 7 Ba-140 1.1 3E+O l 6.66£+00 2.3 1£+01 u WD STJ 420 7 68023 4/1 2/20 1 7 Be-7 3.76E+OO l.1 5E+O I 3.87E+O I u WD STJ 420768023 4/12/20 17 B E TA 1.1 5E+OO 7.34E-OI l.99E+OO u WD STJ 420768023 4/12/20 1 7 Ce-1 4 1 2.32E+O O 3.32E+OO 7.1 8£+00 u WD ST J 420768023 4/1 2/20 1 7 Ce-1 44 8.29E+O O 9.05£+00 3.1 4E+Ol u WD ST J 420768023 4/12/20 1 7 Co-57 -2.82E-O I 1.1 4£+00 3.87E+OO u WD ST J 420768023 4/12/20 1 7 Co-58 l.99E+O O l.4 1 E+OO 4.95E+OO u WD ST J 420768023 4/12/20 1 7 C o-60 3.58E-O l 1.38£+00 4.78E+OO u WD STJ 420768023 4/1 2/20 1 7 Cr-5 1 9.25E+OO l.1 6E+O l 4.00E+OI u WD ST J 420768023 4/12/20 1 7 Cs-134 5.46E+O O l.78E+OO 4.74E+OO UI WD ST J 420768023 4/1 2/20 1 7 Cs-137 2.1 9E+OO l.S I E+OO 5.26E+OO u WD STJ 420768023 4/12/20 1 7 Fe-59 -2.72E+OO 2.43E+O O 6.0 5E+OO u WD ST J 42076802 3 4/12/20 1 7 1-13 1 -3.63E-O I 2.1 8E+OO 7.1 9E+OO u WD ST J 420768023 4/1 2/20 1 7 K-40 -1.00E+O I 2.23£+0 1 7.86E+Ol u WD ST J 420768023 4/12/20 17 La-1 40 2.9 1 E+OO l.48E+OO 6.13£+00 u WD STJ 420768023 4/1 2/20 1 7 M n-54 l.66E+OO l.39E+OO 4.83E+OO u WD ST J 420768023 4/12/20 1 7 Nb-95 7.43E-O l 1.44£+00 4.86E+OO u WD ST J 420768023 4/12/20 17 R u-1 03 -1.72E+OO l.50E+OO 4.35E+OO u WD ST J 420768023 4/12/20 17 R u-1 06 -5.57E+OO 1.1 6£+0 1 3.61£+01 u WD STJ 420768023 4/1 2/2 01 7 Sb-1 24 -1.74E+OO 3.00E+OO 8.97E+OO u WD STJ 420768023 4/1 2/20 1 7 Sb-125 6.66E+OO 3.69£+00 1.2 7 E+OI u WD STJ 420768023 4/12/20 1 7 Se-75 2.51E+OO 2.0 2£+00 5.42E+OO u WD ST J 420768023 4/1 2/20 17 T h-228 2.74E+OO 2.89E+OO 9.89E+OO u WD STJ 420768023 4/12/20 1 7 Z n-65 2.05£-0 1 2.46£+00 7.89£+00 u WD ST J 420768023 4/12/20 17 Z r-95 2.1 5£+0 0 2.35E+OO 8.1 4E+OO u WD STJ 4207680 24 4/1 2/20 1 7 1-13 1 -4.09 E-O l l.72E-O I 7.22 E-Ol u WD LTW 420768025 4/1 2/20 1 7 Ac-228 7.1 4E+O O 7.66E+OO 1.69£+01 u WD LTW 420 7 68025 4/1 2/20 1 7 Ag-1 08m 1.41E+O O 9.4 1 E-Ol 3.28£+00 u WD LTW 420768025 4/12/20 1 7 Ag-11 0111 8.81£-0 1 1.23£+00 4.24 E+OO u WD LTW 420768025 4/12/20 1 7 Ba-1 40 2.08£-0 1 4.37£+00 l.47E+Ol u WD LTW 420768025 4/12/20 1 7 Be-7 3.56E+O l 2.30E+O I 2.78 E+O l U l WD LTW 420768025 4/1 2/20 1 7 BET A 5.46 E-O I 9.28£-0 1 2.89E+OO u WD LTW 420768025 4/12/20 1 7 C e-1 41 -1.1 5E+O O 2.0 9E+OO 5.96E+OO u WD LTW 420768025 4/1 2/20 1 7 C e-1 44 -5.59E+OO 7.82£+00 2.42 E+O l u WD LTW 420768025 4/1 2/20 1 7 Co-57 -5.75£-0 1 l.O I E+OO 3.1 6 E+OO u WD LTW 420768025 4/12/20 1 7 Co-58 -7.42£-01 1.09£+00 3.32 E+OO u WD LTW 420768025 4/12/20 1 7 C o-60 -2.88E+O O 1.2 5£+00 2.32 E+OO u WD LTW 420768025 4/12/20 17 C r-5 1 l.64E+O l 9.89E+OO 3.4 1 E+O l u WD LTW 420768025 4/12/20 1 7 Cs-1 3 4 1.17£+00 l.13E+OO 3.94 E+OO u D-80 Don a ld C. Coo k Nuclear P l a nt Annual Radiologi c al Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WD LTW 420768025 4/12/20 1 7 Cs-137 -9.52E-02 l.04E+OO 3.06E+OO u WD LTW 420768025 4/12/2017 Fe-59 4.35E+OO 2.51 E+OO 8.64E+OO u WD LTW 420768025 4/12/2017 1-13 1 1.63E+OO l.93E+OO 6.72E+OO u W D LTW 420768025 4/12/2017 K-40 l.92 E+Ol l.87 E+Ol 2.40 E+Ol u WD LTW 420768025 4/12/2017 La-1 40 1.08 E+OO 1.74 E+OO 6.17 E+OO u W D LTW 420768025 4/12/2017 Mn-54 9.74E-Ol 8.45 E-Ol 2.81E+OO u WD LTW 420768025 4/12/2017 Nb-95 -2.0 l E+OO 1.15 E+OO 3.0lE+OO u WD LTW 420768025 4/12/2017 Ru-103 -2.07E+OO 1.15 E+OO 3.03E+OO u WD LTW 420768025 4/12/2017 Ru-106 5.75E+OO 8.81 E+OO 3.05E+Ol u WD LTW 420768025 4/12/20 1 7 Sb-124 7.79E-Ol l.69 E+OO 6.09E+OO u WD LTW 420768025 4/12/2017 Sb-1 25 3.45E+OO 5.35 E+OO l.07 E+O I u WD LTW 420768025 4/12/2017 Se-75 -1.02E-OI l.39E+OO 4.33E+OO u WD LTW 420768025 4/12/20 1 7 Th-228 3.83E-OI 3.37 E+OO 8.18 E+OO u WD LTW 420768025 4/12/2017 Zn-65 -3.0l E+OO 2.70E+OO 6.18 E+OO u WD LTW 420768025 4/12/2017 Zr-95 -3.55E+OO 1.91 E+OO 4.47E+OO u WD LTW 420768026 4/12/20 1 7 1-131 -l.64 E-OI 2.04E-01 7.ISE-0 1 u WD STJ 421995023 4/26/2017 Ac-2 28 -3.12 E+OO 3.99 E+OO 1.21E+Ol u WD STJ 421995023 4/26/20 1 7 Ag-108m 6.57 E-0 1 6.40 E-0 1 2.20E+OO u WD STJ 421995023 4/26/2017 Ag-llOm -2.0 l E-02 1.lO E+OO 3.5 1 E+OO u WD STJ 421995023 4/26/20 1 7 Ba-140 -8.94E+OO 4.60 E+OO 1.15E+Ol u WD STJ 421995023 4/26/20 1 7 Be-7 -6.73 E+OO 6.61 E+OO 2.0 I E+Ol u WD STJ 42199502 3 4/26/20 1 7 BETA -7.47 E-0 1 9.62 E-0 1 3.30E+OO u WD STJ 421995023 4/26/20 1 7 Ce-1 4 1 -7.20E-OI I .40 E+OO 4.38E+OO u WD STJ 421995023 4/26/20 1 7 Ce-144 -8.12 E-Ol 5.15 E+OO l.65E+O l u WD STJ 421995023 4/26/20 1 7 Co-57 -I .06 E+OO 7.27E-0 1 2.IOE+OO u WD ST J 421995023 4/26/20 1 7 Co-58 l.39 E+OO 8.40 E-O I 2.84E+OO u WD STJ 421995023 4/26/2017 Co-60 -5.97E-01 8.47E-O I 2.60E+OO u WD STJ 421995023 4/26/20 1 7 C r-5 1 -8.14 E+OO 7.74 E+OO 2.45E+O l u WD STJ 421995023 4/26/20 1 7 Cs-1 34 l.84E+OO l.33 E+OO 2.89E+OO u WD STJ 42 1 995023 4/26/20 1 7 Cs-137 -2.93E-O l 7.99 E-O l 2.53E+OO u WD STJ 421995023 4/26/20 1 7 Fe-59 3.43E-Ol l.53E+OO 5.25E+OO u WD STJ 42 1 995023 4/26/20 1 7 1-13 1 2.63E+OO l.77 E+O O 5.57E+OO u WD STJ 421995023 4/26/20 1 7 K-40 -6.18 E+OO 1.24 E+O l 3.96E+Ol u WD STJ 421995023 4/26/20 1 7 La-140 3.52E-01 I .40E+OO 4.57E+OO u WD STJ 421995023 4/26/20 1 7 Mn-54 -1.94E-Ol 7.43E-OI 2.32E+OO u WD STJ 421995023 4/26/20 1 7 Nb-95 -7.08E-OI 8.65 E-O I 2.57E+OO u WD ST J 421995023 4/26/2017 Ru-10 3 -4.47E-OI 8.SO E-01 2.72E+OO u WD STJ 42 1 995023 4/26/20 1 7 Ru-106 -1.86 E+O I 8.08E+OO 1.78 E+O l u WD STJ 421995023 4/26/20 1 7 Sb-1 24 -I .66E+OO l.83E+OO 5.1 l E+OO u WD STJ 421995023 4/26/2017 Sb-1 25 4.2 1 E-OI l.98 E+OO 6.70E+OO u WD STJ 421995023 4/26/2017 Se-75 -l.54E+OO l.06E+OO 2.85E+OO u WD ST J 421995023 4/26/2017 Th-228 -l.94 E-OI l.93E+OO 5.59E+OO u WO ST J 421995023 4/26/20 1 7 Zn-65 O.OO E+OO O.OOE+OO 4.79E+OO u WD STJ 42 1 995023 4/26/20 1 7 Zr-95 -7.72 E-Ol l.29 E+OO 3.90E+OO u WD STJ 42 1 995024 4/26/20 1 7 1-13 1 -l.1 4E-01 2.75 E-O l 9.13E-O l u WD LTW 42 1 995025 4/26/2 017 Ac-228 8.05E+OO 3.88 E+OO l.29E+O l u WO LTW 42 1 995025 4/26/20 1 7 Ag-108m 7.1 2E-OI 7.0SE-0 1 2.39E+OO u WD LTW 42 1 995025 4/26/2017 Ag-I I Om 3.79E-Ol 9.99 E-Ol 3.09E+OO u WD LTW 421995025 4/26/2017 Ba-1 40 3.84E+OO 4.50E+OO l.52E+O l u WD LTW 42 1 995025 4/26/2017 B e-7 2.87E+OO 6.71E+OO 2.25E+O I u D-81 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE E ND CONC STD.D EV. MD C FLAGS TYPE STATION LSN DAT E NUCLIDE (pCi/L) (pC i/L) (pCi/L) WO LTW 42 1 995025 4/26/20 17 B ETA 2.25E+OO l.25E+OO 3.56 E+OO u WD LTW 42 1 995025 4/26/2017 Ce-1 4 1 -1.73E+OO 1.5 1 E+OO 4.47E+OO u WD LTW 42 1 995025 4/26/20 1 7 Ce-1 44 -3.76E+OO 5.4 1 E+OO l.67E+OI u WD LTW 42 1 995025 4/26/2017 Co-57 1.7 6E-0 1 6.88E-O I 2.24E+OO u WO LTW 42 1 995025 4/26/20 1 7 Co-58 4.66E-O I 7.59E-O I 2.50E+OO u WD LTW 42 1 995025 4/26/2017 Co-60 6.24E-O I 8.83E-0 1 3.02E+OO u WD LTW 42 1 995025 4/26/20 17 C r-S I 1.70E+O I 8.67E+OO 2.74E+OI u WD LTW 42 1 995025 4/26/2017 Cs-1 34 9.55E-01 9.47£-0 1 3.1 3E+OO u WD LTW 42 1 995025 4/26/2017 Cs-1 37 -2.0IE+OO 9.53£-0 1 2.2 1 E+OO u WD LTW 42 1 995025 4/26/20 1 7 Fe-5 9 4.79E+OO 2.03E+OO 6.68E+OO u WO LTW 42 1 995025 4/26/20 17 1-13 1 5.56 E-O I 1.74£+00 5.65£+00 u WD LTW 42 1 995025 4/26/20 1 7 K-40 2.3 2 E+O I 1.60£+0 1 2.55£+0 1 u WO LTW 42 1 995025 4/26/20 1 7 La-1 40 4.24E-02 1.SI E+OO 4.27E+OO u WD LTW 42 1 995025 4/26/20 1 7 Mn-54 3.6 1 E-O I 7.3 7£-0 1 2.56E+OO u WD LTW 42 1 995025 4/26/20 17 Nb-95 6.63£-0 1 8.1 9£-0 1 2.71E+OO u WD LTW 42 1 995025 4/26/2017 Ru-1 03 1.14£+00 8.6 1£-0 1 2.68E+OO u WD LTW 42 1 995025 4/26/2017 Ru-106 3.1 2E+OO 7.15 E+OO 2.36£+0 1 u WO LTW 42 1 995025 4/26/20 1 7 Sb-1 24 1.99£+00 l.80E+OO 6.33£+00 u WD LTW 42 1 995025 4/26/2 0 1 7 Sb-1 25 3.09E+OO 2.29E+OO 7.70 E+OO u WO LTW 42 1 995025 4/26/20 1 7 Se-75 1.15£+00 I.II E+OO 3.68E+OO u WD LTW 42 1 995025 4/26/20 1 7 T h-228 -1.1 9E+OO 1.90£+00 5.58E+OO u WO LTW 42 1 995025 4/26/2017 Z n-65 2.32E-OI l.50E+OO 5.03£+00 u WD LTW 42 1 995025 4/26/2017 Zr-95 -9.30£-0 1 l.58 E+OO 4.77E+OO u WD LTW 42 1 995026 4/26/20 1 7 1-1 31 6.56 E-OI 2.60£-0 1 8.09£-01 u WD STJ 423047023 5/10/20 1 7 Ac-228 -4.6 5E+OO 6.48 E+OO 2.02 E+O I u WD STJ 423047023 5/1 0/20 1 7 Ag-1 08m l.04E+OO l.09E+OO 3.72E+OO u WO STJ 423047023 5/1 0/20 1 7 Ag-I !Om -9.69£-01 l.62E+OO 5.07E+OO u WD STJ 423047023 5/10/2017 Ba-14 0 3.54E+OO 5.28£+00 l.7 9E+OI u WD STJ 42304 70 23 5/10/20 1 7 Be-7 8.16 E+OO 1.0I E+O I 3.42E+O I u WD ST J 42304 7 023 5/10/20 1 7 BETA 1.89£+00 l.2 1 E+OO 3.30E+OO u WD ST J 423047023 5/10/20 1 7 Ce-1 4 1 -6.98£+00 2.98E+OO 5.89£+00 u WD ST J 423047023 5/10/20 17 Ce-1 44 -4.92 E+OO 9.09£+00 2.75 E+OI u WD STJ 423047023 5/10/20 17 Co-57 -2.67E+OO l.3 1 E+OO 3.1 9E+OO u WD STJ 423047023 5/10/20 1 7 Co-58 -9.1 7£-0 1 9.78£-0 1 2.86£+00 u WD STJ 423047023 5/10/2017 Co-60 2.62£-01 l.02 E+OO 3.45£+00 u WD STJ 423047023 5/10/20 17 C r-S I 3.05£+00 I.II E+O I 3.74E+OI u WD STJ 423047023 5/10/20 1 7 Cs-1 34 3. I 8 E+OO l.49 E+O O 4.75E+OO u WD STJ 423047023 5/10/2017 Cs-1 37 1.59£+00 l.2 4E+OO 4.26E+OO u WO STJ 423047023 5/10/20 17 Fe-59 2.80£+00 2.38E+OO 8.03£+00 u WO STJ 423047023 5/1 0/20 1 7 1-1 3 1 -1.1 6E+OO 2.02E+OO 6.38£+00 u WO STJ 423047023 5/10/20 17 K-40 -1.76 E+OO 1.8 1 E+OI 6.IO E+O I u WO ST J 423047023 5/10/20 17 La-1 40 l.31 E+O O 2.06£+00 7.1 4E+OO u WD STJ 423047023 5/10/20 1 7 Mn-54 -I .36E-O I l.02 E+OO 3.40E+OO u WD ST J 423047023 5/10/20 1 7 Nb-95 l.57E+OO 1.1 5£+00 4.1 5£+00 u WD STJ 423047023 5/10/20 1 7 Ru-10 3 7.06£-02 1.06£+00 3.47E+OO u WD STJ 423047023 5/10/20 1 7 Ru-106 -1.34£+00 9.54 E+OO 3.00 E+O I u WD STJ 423047023 5/10/20 1 7 Sb-1 24 -1.40£+00 3.63E+OO 1.17 E+O I u WO ST J 42304702 3 5/10/20 1 7 S b-1 25 -1.31 E+OO 2.72E+OO 8.49E+OO u WO ST J 423047023 5/10/20 1 7 Se-75 2.85£+00 l.64E+OO 5.54E+OO u WD STJ 423047023 5/10/20 17 T h-228 2.67E+OO 3.91 E+OO 8.09E+OO u D-82 Donald C. Cook Nuclear Plan t Annual Radiological Environmental Operating Report 2017 S A MPLE END CONC STD.DEV. MDC FLAGS TYPE ST A TION LSN D ATE NUCL ID E (p Ci/L) (pCi/L) (pC i/L) WD STJ 423047023 5/10/20 1 7 Z n-65 -2.0 SE-0 1 2.3 1 E+OO 6.57E+OO u W D STJ 423047023 5/10/20 1 7 Z r-95 3.94E-O I l.94E+OO 6.68E+OO u WD STJ 423047024 5/10/20 1 7 1-1 3 1 3.65E-0 1 2.25E-0 1 7.1 9E-O I u WD LTW 423047025 5/1 0/20 1 7 Ac-228 8.07E-02 5.76E+OO l.93E+O I u WO LTW 423047025 5/10/20 1 7 Ag-1 08m -5.S I E-0 1 8.57E-O l 2.74E+OO u WD LTW 423047025 5/10/20 1 7 Ag-I I Om 3.52E-OI 9.77E-O l 3.34E+OO u WO LTW 423047025 5/10/20 1 7 Ba-140 -4.57E+OO 4.50 E+OO 1.32E+O I u WD LTW 423047025 5/10/20 1 7 Be-7 5.04E+OO 8.42E+OO 2.96E+O I u WO LTW 423047025 5/10/20 1 7 BETA l.33E+OO 8.42E-O I 2.26E+OO u WO LTW 423047025 5/10/2017 Ce-1 4 1 4.28E-OI 2.79E+OO 5.4 1 E+OO u WD LTW 423047025 5/10/20 1 7 Ce-1 44 -4.35E+OO 6.1 8E+OO l.95E+O I u WD LTW 423047025 5/10/20 1 7 Co-57 1.2 1 E+OO 8.96E-0 1 3.0 5 E+OO u WO LTW 423047025 5/10/20 1 7 Co-58 4.3 1 E-O I 9.I OE-0 1 3.1 2E+OO u WO LTW 423047025 5/10/20 1 7 Co-60 l.48E+OO l.OIE+OO 3.84E+OO u WD LTW 423047025 5/10/20 17 Cr-5 1 6.70E+OO 1.0 1 E+O l 3.30E+O l u WO LTW 423047025 5/10/20 1 7 Cs-1 34 -7.82E-OI 1.24E+OO 3.85E+OO u WO LTW 423047025 5/10/20 1 7 Cs-1 37 8.1 l E-01 l.26E+OO 4.34E+OO u WO LTW 423047025 5/10/20 17 Fe-59 2.30E+OO 2.40E+OO 8.26E+OO u W D LTW 423047025 5/10/20 1 7 1-13 1 1.3 1 E-01 1.85E+OO 5.80E+OO u W O LTW 423047025 5/10/20 1 7 K-40 1.1 4E+OI l.57E+O l 2.42E+O I u W D LTW 423047025 5/10/20 1 7 La-1 40 -1.92E+OO l.89 E+OO 5.15E+OO u W D LTW 423047025 5/10/20 1 7 Mn-54 l.28E-02 l.06E+OO 3.82E+OO u W D LTW 423047025 5/10/20 1 7 Nb-95 -2.95E-0 1 1.1 9E+OO 3.69E+OO u W D LTW 423047025 5/10/20 17 R u-1 03 -l.24E+OO l.1 3E+OO 3.39E+O O u W D LTW 423047025 5/1 0/20 17 R u-1 06 -7.38E+OO 9.97E+OO 3.05E+OI u W D LTW 423047025 5/10/20 1 7 Sb-1 24 -2.62E-O I 2.52E+OO 8.14E+OO u WD LTW 423047025 5/10/20 1 7 Sb-1 25 4.35E-O I 2.55E+OO 8.84E+OO u W D LTW 423047025 5/10/20 1 7 Se-75 -l.26E+OO I .46E+OO 4.30E+O O u WD LTW 423047025 5/10/20 1 7 Th-228 1.59E-O I 2.32E+OO 7.04E+OO u W D LTW 423047025 5/1 0/2017 Zn-65 5.35E+OO l.8 1 E+OO 6.39E+OO u W D LTW 423047025 5/10/20 1 7 Zr-95 -l.84E+OO 2.02E+OO 5.85E+OO u W D LTW 423047026 5/10/20 17 1-1 31 -3.20E-03 I .90E-O I 6.26E-O I u WD STJ 424160023 5/2 4/20 1 7 Ac-228 -8.1 3E-OI 4.2 5E+OO 1.29E+O l u W D STJ 424160023 5/24/20 1 7 Ag-1 08 m -7.I I E-01 7.32E-O I 2.2 1 E+OO u W O STJ 424 1 60023 5/24/20 1 7 Ag-I I O m 1.0I E+OO 1.28E+OO 4.42E+O O u W D STJ 424 1 60023 5/24/20 1 7 Ba-1 40 6.90E+OO 4.29E+OO 1.52E+O I u W D STJ 424 1 60023 5/24/20 1 7 Be-7 4.76E-O I 7.74E+OO 2.62E+O I u W O STJ 424 1 60023 5/24/20 1 7 BETA 1.22E+OO 1.1 6E+OO 3.55E+O O u W O STJ 424160023 5/24/20 1 7 Ce-1 41 -2.56E-01 l.58 E+OO 5.06E+OO u WD STJ 424160023 5/24/20 1 7 Ce-144 -8.1 2E+OO 6.02E+OO l.70E+O I u W O STJ 424160023 5/2 4/20 1 7 Co-57 -I .5 9E-0 1 6.96E-O I 2.24E+OO u W D STJ 424160023 5/2 4/20 1 7 Co-58 -1.83E-O l 9. I SE-0 1 2.92E+OO u WD STJ 424160023 5/2 4/20 1 7 Co-60 2.27E+OO 1.06E+OO 3.91E+OO u WD STJ 424160023 5/2 4/20 1 7 Cr-51 -1.07E+O I 7.98E+OO 2.37E+O l u WO STJ 424 1 60023 5/24/20 1 7 Cs-1 34 6.l l E-0 1 8.96E-O I 3.1 2E+OO u WD STJ 424 1 60023 5/24/20 1 7 Cs-1 37 -1.63E+OO 9.47E-O I 2.24E+OO u WD STJ 424 1 60023 5/24/20 1 7 Fe-59 -2.57E+OO 2.1 4E+OO 5.4 1 E+OO u WO ST J 424 1 60023 5/24/20 17 1-13 1 7.0 6E-O I 1.43E+OO 5.0 I E+O O u WD STJ 424 1 60023 5/24/20 1 7 K-40 -2.58E+O I 1.46E+O I 3.9 4E+O I u WD STJ 424160023 5/24/20 1 7 La-1 40 2.1 2E-OI l.24E+OO 4.24E+OO u D-83 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operatin g Report 2017 SAMPLE E ND CONC ST D.D EV. MDC FLAGS TYPE STATION LSN DAT E NUCLIDE (pCi/L) (pCi/L) (p Ci/L) WD STJ 424 1 60023 5/24/20 1 7 Mn-54 3.85E-01 9.97E-OI 3.3 5E+OO u WD STJ 424 1 60023 5/24/2017 N b-95 -1.8 0E-OI 8.82E-0 1 2.49E+OO u WD STJ 424160023 5/24/2017 Ru-1 03 1.8 1 E+OO l.05E+OO 3.64E+OO u WD ST J 424 1 60023 5/24/20 1 7 R u-1 06 4.72E+OO 7.80E+OO 2.7 1 E+O I u WD STJ 424 1 60023 5/24/2017 S b-1 24 -2.09 E+OO 1.88E+OO 4.51E+OO u WD STJ 424 1 60023 5/24/2017 Sb-1 25 2.20E-O I 2.50E+OO 8.53E+OO u WD STJ 424 1 60023 5/24/20 17 Se-75 -9.39E-O I 1.39E+OO 3.96E+OO u WD ST J 424160023 5/24/20 1 7 T h-228 -l.69E+OO 2.23E+OO 6.93E+OO u WD STJ 424 1 60023 5/24/2017 Z n-65 3.42 E+OO 2.44E+OO 8.50E+OO u WD STJ 424 1 60023 5/24/2017 Z r-95 -2.51E+OO 1.45E+OO 3.08 E+OO u WD STJ 424 1 60024 5/24/2017 1-1 3 1 -2.16 E-0 1 I .94E-OI 6.71E-OI u WD LTW 424160025 5/24/2017 Ac-228 3.98 E+OO 5.07E+OO 1.88 E+O I u WD LTW 424160025 5/24/2017 Ag-1 08m -4.78E-O I 9.76E-01 3.07E+OO u WD LTW 424160025 5/24/2017 Ag-1 1 0 111 2.44E+OO l.6 7E+OO 5.8 1 E+OO u WD LTW 424160025 5/24/2017 Ba-1 40 8.97 E+OO 7.43E+OO l.9 1 E+OI u WD LTW 424160025 5/24/2017 Be-7 I .42E-01 l.05E+OI 3.45E+OI u WD LTW 424 1 60025 5/24/2017 BETA l.82E+OO 1.17 E+OO 3.50E+OO u WD LTW 424 1 60025 5/24/2017 Ce-1 41 l.87E+OO 2.35E+OO 7.85E+OO u WD LTW 424 1 60025 5/24/2017 Ce-1 44 2.85E+OO 8.75E+OO 2.76E+OI u WD LTW 424 1 60025 5/24/20 1 7 Co-57 -2. IOE-0 1 I.16 E+OO 3.58E+OO u WD LTW 424 1 60025 5/24/2017 Co-58 -9.80E-O I l.03E+OO 2.77E+OO u WD LTW 424 1 60025 5/24/2017 Co-60 -3. 11 E-01 1.05 E+OO 3.33E+OO u WD LTW 424160025 5/24/2017 C r-5 1 3.1 6E+OO 9.65E+OO 3.28E+OI u WD LTW 424 1 60025 5/24/20 1 7 Cs-13 4 -l.11 E+OO l.17 E+OO 3.20E+OO u WD LTW 424 1 60025 5/24/20 1 7 Cs-1 37 -7.67£-01 l.15 E+OO 3.40E+OO u WD LTW 424 1 60025 5/24/2017 Fe-59 2.50 E+OO 2.IO E+OO 7.2 1 E+OO u WO LTW 424 1 60025 5/24/2017 1-131 -1.25£-01 l.91 E+OO 5.95E+OO u WD LTW 424160025 5/24/20 1 7 K-4 0 -3.08E+0 1 l.52 E+OI 3.67E+O I u WD LTW 424 1 60025 5/24/2017 La-140 -4. IO E-01 2.09 E+OO 6.71E+OO u WD LT W 424 1 60025 5/24/2017 Mn-54 -l.09E+OO 1.1 6E+OO 3.1 9E+OO u WD LTW 424 1 60025 5/24/2017 N b-95 -5.46E-OI 1.1 1 E+OO 3.33E+OO u WO LTW 424 1 60025 5/24/20 1 7 Ru-103 -3.9 1 E-OI 1.23 E+OO 3.9 1 E+OO u WD LTW 424 1 60025 5/24/2017 Ru-1 06 9.96E+OO l.08 E+OI 3.40E+OI u WD LTW 424160025 5/24/20 1 7 S b-1 24 -2.06E-O I 2.30E+OO 7.40E+OO u WO LTW 424 1 60025 5/24/20 1 7 S b-1 25 -1.3 3 E+OO 3.08E+OO 9.77E+OO u WD LTW 424 1 60025 5/24/2017 Se-75 2.0I E+O O l.62E+OO 5.34 E+OO u WD LTW 424 1 60025 5/24/20 1 7 Th-2 28 -2.2 1 E+OO 2.35E+OO 7.33E+OO u WD LTW 424160025 5/24/2017 Z n-65 -4.83E+OO 3.30E+OO 7.20E+OO u WD LTW 424 1 60025 5/24/20 1 7 Z r-95 2.71 E+OO 2.63E+OO 6.89E+OO u WD LTW 424 1 60026 5/24/2017 1-1 3 1 3.29E-O I 2.20£-01 6.48E-OI u WD ST J 425117023 6/7/20 1 7 Ac-228 8.97E-OI 3.66E+OO 7.72E+OO u WD STJ 425 1 1 7023 6/7/20 17 Ag-10 8m -6.58E-Ol 4.99E-OI I .47E+OO u WD STJ 425 11 7023 6/7/20 1 7 Ag-ll Om -7.36£-01 6.74E-OI 2.09E+OO u WD ST J 425 11 7023 6/7/20 1 7 Ba-140 2.1 6E+O O 2.63E+OO 8.59E+OO u WD ST J 425117023 6/7/20 1 7 B e-7 4.27E+OO 4.79E+OO l.56E+OI u WD ST J 4251 1 7023 6/7/20 1 7 B E T A 2.02E+OO l.03E+OO 3.0 2E+OO u WD STJ 425 11 7023 6/7/2017 Ce-1 41 -9.1 3E-OI 9.61E-OI 3.IO E+OO u WD STJ 425117023 6/7/2017 Ce-1 44 -8.27E-O I 3.51E+OO l.1 8E+OI u WD STJ 425 11 7023 6/7/2017 Co-57 5.53 E-0 2 4.59E-OI l.56E+OO u WD ST J 425 1 1 7023 6/7/2017 Co-58 -3.06E-O I 4.97E-01 l.63E+OO u D-84 Don a ld C. Cook Nuclear Plant Annual R a diological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L)

WD STJ 425117023 6/7/20 17 Co-60 6.36E-OI 5.1 8E-OI 1.77E+OO u WD STJ 425117023 6/7/20 1 7 C r-51 3.JO E+OO 5.35E+OO J.59 E+OI u WD STJ 4251 1 7023 6/7/20 1 7 Cs-134 6.2 1 E-Ol 5.73E-01 l.97E+OO u WD STJ 425117023 6/7/20 17 Cs-1 37 7.55E-OI 5.70E-Ol 1.84 E+OO u WD ST J 425117023 6/7/20 17 Fe-59 -4.97E-OI 9.76E-O I 3.1 6E+OO u WD ST J 425117023 6/7/20 17 1-1 3 1 -4.01 E-01 8.25E-O I 2.64E+OO u WD STJ 4251 1 7023 6/7/20 1 7 K-40 l.84E+Ol 7.52E+OO 2.33E+O I u WD STJ 425117023 6/7/20 17 La-1 40 l.75E-OI 7.98E-0 1 2.65E+OO u WD ST J 425117023 6/7/20 1 7 M n-54 -3.8 1 E-Ol 4.72E-O I l.52 E+OO u WD ST J 425117023 6/7/20 17 Nb-95 7.76 E-OI 8.82E-O I l.75E+OO u WD ST J 425117023 6/7/20 17 R u-103 -6.04E-OI 6.62E-0 1 l.78 E+OO u WD STJ 425117023 6/7/20 17 R u-1 06 -4.47 E+OO 4.87E+OO 1.46E+O I u WD STJ 425117023 6/7/20 17 Sb-1 24 9.48E-Ol l.29E+OO 4.37 E+OO u WD STJ 4251 1 7023 6/7/20 17 Sb-1 25 -l.52 E-OI 1 .43E+OO 4.62 E+OO u WD ST J 42511702 3 6/7/20 17 Se-75 -7.33E-OI 7.39E-0 1 2.20E+OO u WD STJ 425117023 6/7/20 17 Th-228 -1.66E+OO l.78E+OO 3.85E+OO u WD ST J 425117023 6/7/20 17 Z n-65 -9.2 1 E-Ol l.05E+OO 3.26E+OO u WD ST J 425 11 7023 6/7/20 17 Z r-95 l.5 1 E+OO 9.89£-0 1 3.17E+OO u WD STJ 425117024 6/7/2017 1-1 3 1 -1.9 5E-Ol l.85E-0 1 6.55£-0 1 u WD LTW 425117025 6/7/2017 Ac-228 -3.03E+OO 2.75E+OO 7.43E+OO u WD LTW 4 25 11702 5 6/7/20 17 Ag-1 08m 5.64 E-Ol 4.26£-0 1 l.42 E+OO u WD LTW 4 25 1170 25 6/7/20 17 Ag-llOm 8.1 2E-Ol 6.63E-O I 2.1 7E+OO u WD LTW 42511 7025 6/7/20 1 7 Ba-1 40 -7.2 5 E-01 2.02E+OO 6.54E+OO u WD LTW 425117025 6/7/20 17 Be-7 3.1 7E+OO 4.02E+OO l.35E+O I u WD LTW 425117025 6/7/20 17 BETA 8.05£-01 9.44E-O I 2.88 E+OO u WD LTW 425117025 6/7/20 1 7 Ce-1 4 1 -3.23E+OO l.38E+OO 2.5 1 E+OO u WD LTW 4251 1 7025 6/7/20 1 7 Ce-1 44 -2.91E+OO 3.58E+OO I .02E+O I u WD LTW 425117025 6/7/20 1 7 Co-57 -4.3 1 E-0 2 3.95£-0 1 l.28 E+OO u WD LTW 4251 1 7025 6/7/20 17 Co-58 2.30£-01 4.97£-0 1 l.62 E+OO u WD LTW 425 11 7025 6/7/20 1 7 Co-60 -4.36E-01 5.76£-01 l.55 E+OO u WD LTW 425117025 6/7/20 1 7 C r-5 1 -1.59 E+OO 3.99E+OO l.34E+O I u WD LTW 425117025 6/7/20 1 7 Cs-134 6.83E-Ol 5.24 E-O I l.72 E+OO u WD LTW 425117025 6/7/20 1 7 Cs-1 37 3.82E-Ol 5.37£-0 1 1.78E+OO u WD LTW 4251170 25 6/7/20 1 7 Fe-59 8.95E-0 2 8.89£-0 1 3.0 I E+OO u WD LTW 425117025 6/7/20 1 7 1-1 3 1 l.09E+OO 7.23£-0 1 2.4 1 E+OO u WD LTW 425117025 6/7/20 17 K-40 -1.23E+Ol l.02E+O I 2.08E+O I u WD LTW 425117025 6/7/20 1 7 La-1 40 6.75£-01 7.82E-0 1 2.65E+OO u WD LTW 4251170 25 6/7/20 1 7 Mn-54 5.1 5£-0 3 4.60E-O I 1.47 E+OO u WD LTW 425117025 6/7/20 1 7 Nb-95 -4.56£-01 5.9 1 E-01 l.55E+OO u WD LTW 42 5 117025 6/7/20 1 7 Ru-10 3 4.99E-OI 4.83E-O I 1.48 E+OO u WD LTW 4251 1 7025 6/7/20 17 R u-1 0 6 -8.59E+OO 5.30E+OO 1.29 E+OI u WD LTW 4251 1 7025 6/7/20 17 Sb-1 24 -7.59£-02 l.OI E+OO 3.27E+OO u WD LTW 4251 1 7025 6/7/20 1 7 S b-1 25 -7.95E-02 1.22E+OO 4.09E+OO u WD LTW 4251 170 25 6/7/20 1 7 Se-75 2.30E-OI 6.22E-OI l.95E+OO u WD LTW 425117025 6/7/20 17 T h-228 -6.43£-01 I .46E+OO 3.36E+OO u WD LTW 4251 1 7025 6/7/20 1 7 Z n-65 2.20E+OO l.32E+OO 2.94E+OO u WD LTW 425117025 6/7/20 17 Zr-95 5.72E-Ol 8.29£-0 1 2.74E+OO u WD LTW 4251 1 7026 6/7/20 1 7 1-1 3 1 -1.98E-OI 1.93£-0 1 6.50E-O I u WD STJ 426245023 6/2 1/20 1 7 Ac-228 3.74E+OO 6.06E+OO J.02E+OI u WD ST J 426245023 6/21/20 1 7 Ag-108111 3.2 1 E-OI l.OI E+O O 3.40E+OO u D-8 5 Donald C. Cook Nuclea r Plant Annual Radiological En v ironmental Operatin g Report 2017 SAMPLE E ND CONC ST D.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLID E (pCi/L) (pC i/L) (pC i/L) WD STJ 426245023 6/21/2017 Ag-ll Om -8.46E-02 l.1 8E+OO 3.94E+OO u WD STJ 426245023 6/2 1/2017 Ba-1 40 -1.1 9E+OO 6.70E+OO 2.06E+OI u WD STJ 426245023 6/21/2017 Be-7 -8.39E+OO I .02E+O I 3.07E+OI u WD STJ 426245023 6/21/2017 BETA I.SO E+OO 8.64E-OI 2.34E+OO u WD STJ 426245023 6/2 1/20 1 7 Ce-1 41 -1.72E+OO 2.32E+OO 6.84E+OO u WD STJ 426245023 6/21/2017 Ce-1 44 l.70E+OO 7.14 E+OO 2.3 1 E+OI u WD STJ 426245023 6/2 1/20 1 7 Co-57 l.09E+OO 9.78E-OI 3.20E+OO u WD STJ 426245023 6/21/20 1 7 Co-58 -6.8 I E-01 8.26E-0 1 2.44E+OO u WD STJ 426245023 6/2 1/2017 Co-60 -6.03E-O I 1.1 I E+OO 3.29E+OO u WD STJ 426245023 6/21/2017 Cr-5 1 -6.65E+OO 9.97E+OO 3.1 7E+O I u WD STJ 426245023 6/2 1/20 1 7 Cs-134 -3.SIE-02 9.25E-O I 3.03E+OO u WD STJ 426245023 6/21/20 1 7 Cs-1 37 1.42E+OO 1.36E+OO 4.61E+OO u WD STJ 426245023 6/2 1/2017 Fe-59 9.22E-OI 2.47E+OO 8.48E+OO u WD STJ 426245023 6/21/2017 1-1 3 I 9.69 E-OI 2.20E+OO 7.S I E+OO u WD STJ 426245023 6/21/2017 K-40 -3.97E+Ol l.99E+OI 5.54E+O I u WD STJ 426245023 6/2 1/2017 La-1 40 -4.95E+OO 2.58E+OO 4.62E+OO u WD STJ 426245023 6/21/20 1 7 Mn-54 -1.4 8E+OO l.18E+OO 3.28E+OO u WD STJ 426245023 6/21/2017 N b-95 1.58E+OO l.12E+OO 3.92E+OO u WD ST J 426245023 6/2 1/2017 Ru-103 -3.33E+OO 1.42E+OO 2.87E+OO u WD STJ 426245023 6/21/2017 R u-1 06 2.84E+OO l.15E+OI 3.76E+O I u WD STJ 426245023 6/21/2017 Sb-1 24 -1.3 9E+OO 2.79E+OO 8.04E+OO u WD ST J 426245023 6/2 1/2017 Sb-1 25 2.34E-0 1 2.38E+OO 7.94 E+OO u WD STJ 42624502 3 6/2 1/2017 Se-75 -9.99E-OI l.43E+OO 4.64 E+OO u WD STJ 426245023 6/21/2017 Th-228 l.87E-0 1 2.35E+OO 8.1 8 E+OO u WD ST J 426245023 6/21/2017 Z n-6 5 8.48E-O I 2.28E+OO 7.07E+OO u WD STJ 426245023 6/21/2017 Zr-95 1.38 E+OO 2.00E+OO 6.78 E+OO u WD STJ 426245024 6/21/2017 1-1 3 1 7.8 1 E-OI 2.97E-01 9.29E-0 1 u WD LTW 426245025 6/2 1/2017 Ac-228 -1.64E+OO 6.15 E+OO 2.07 E+O I u WD LTW 426245025 6/21/2017 Ag-10 8m 6.1 7E-0 1 I.O l E+OO 3.43E+OO u WD .LTW 426245025 6/21/2017 Ag-I !Om -4.00E-01 l.66E+OO 5.36E+OO u WD LTW 426245025 6/21/20 1 7 Ba-140 3.90 E+OO 7.80E+OO 2.48E+OI u WD LTW 426245025 6/21/2017 Be-7 -6.63E+OO l.24E+O I 3.8 1 E+OI u WD LTW 426245025 6/21/20 1 7 BETA 4.41 E-01 I.OOE+OO 3.2 1 E+OO u WD LTW 426245025 6/21/20 1 7 Ce-1 41 -1.7 9E+OO 2.62E+OO 7.23E+OO u WD LTW 426245025 6/2 1/2017 Ce-1 44 -3.SO E+OO 9.29E+OO 2.86E+OI u WD LTW 426245025 6/21/20 17 Co-57 l.4 1 E+OO l.20E+OO 3.87E+OO u WD LTW 426245025 6/21/20 1 7 Co-58 -1.77E-OI l.09E+OO 3.58E+OO u WD LTW 426245025 6/2 1/20 1 7 Co-60 -1.0SE-0 1 l.2 6E+OO 3.99E+OO u WD LTW 426245025 6/21/20 1 7 C r-5 1 -7.97 E+OO l.22E+O l 3.86E+O I u WD LTW 426245025 6/2 1/2017 Cs-134 I .58E-O I I .35E+OO 4.59 E+OO u WD LTW 426245025 6/2 1/2017 Cs-1 37 -2.70E+OO l.40E+OO 3.40E+OO u WD LTW 426245025 6/2 1/2017 Fe-59 l.0 6E+OO 2.67E+OO 8.84 E+OO u WD LTW 426245025 6/2 1/2017 1-1 3 1 9.08E+OO 4.0 I E+OO 7.99E+OO Ul WD LTW 426245025 6/21/2017 K-40 -3.40E+O I l.69E+OI 4.22E+O I u WD LTW 426245025 6/2 1/2017 La-1 40 3.65E+OO 3.SOE+OO l.0 3E+O I u WD LTW 426245025 6/2 1/20 1 7 Mn-54 -7.65 E-OI 1.41 E+OO 4.45E+OO u WD LTW 426245025 6/21/2017 N b-95 7.49 E-02 l.30E+OO 4.40E+OO u WD LTW 426245025 6/2 1/2017 Ru-103 -l.71E+OO I.S I E+OO 4.25 E+OO u WD LTW 426245025 6/2 1/2017 Ru-106 6.09 E+OO 1.1 6E+O I 3.86E+O I u WD LTW 426245025 6/21/2017 S b-1 24 -2.65E+OO 2.52E+OO 6.30E+OO u D-86 Don a l d C. Cook Nuclear Plan t Annual Radiologi ca l Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WD LTW 426245025 6/21/20 1 7 Sb-1 25 9.06E-01 3.45E+OO l.1 5E+O I u WD LTW 426245025 6/21/20 1 7 Se-75 4.65E-02 l.60E+OO 5.38E+OO u WD LTW 426245025 6/21/20 1 7 Th-228 l.26E+Ol 7.18 E+OO 1.1 IE+O I UI WD LTW 426245025 6/21/20 1 7 Zn-65 l.28E+OO 2.79 E+OO 9.53E+OO u WD LTW 426245025 6/21/2017 Zr-95 -1.99E+OO 2.90E+OO 7.77E+OO u WD LTW 426245026 6/21/20 17 1-131 5.89E-Ol 2.89E-01 8.9 1 E-0 1 u WD STJ 42977600 1 6/21/20 1 7 H-3 -2.09E+Ol l.90 E+02 6.29E+02 u WD LTW 429776002 6/21/20 1 7 H-3 -2.0 1 E+02 l.84E+02 6.35E+02 u WD STJ 427370023 7/5/2017 Ac-228 -8.57E+OO 9.17E+OO 2.7 9E+Ol u WD STJ 427370023 7/5/2017 Ag-108m -1.47E-OI 1.47E+OO 4.67E+OO u WD STJ 427370023 7/5/2017 Ag-I I Om -l.22E+OO 2.0 5 E+OO 6.43E+OO u WD STJ 427370023 7/5/20 1 7 Ba-140 2.65E+OO 7.73E+OO 2.53E+OI u WD STJ 427370023 7/5/2017 Be-7 2.37E+Ol 1.50 E+Ol 4.99E+OI u WD STJ 427370023 7/5/2017 BETA 4.30E-OI 7.05E-0 1 2.17E+OO u WD STJ 427370023 7/5/2017 Ce-1 41 -2.52 E+OO 2.30E+OO 6.93E+OO u WD STJ 427370023 7/5/2017 Ce-144 -1.1 7E+OO 9.03E+OO 2.92E+O I u WD STJ 427370023 7/5/20 1 7 Co-57 -4.09E-OI l.08E+OO 3.45E+OO u WD STJ 427370023 7/5/20 1 7 Co-58 -1.43E+OO l.75E+OO 5.39E+OO u WD STJ 427370023 7/5/2017 Co-6 0 -1.12E+OO l.78 E+OO 5.45E+OO u WD STJ 427370023 7/5/20 1 7 C r-51 -5.I OE+OO l.35 E+O I 4.22E+Ol u WD STJ 427370023 7/5/20 1 7 Cs-1 34 l.23E+OO l.94 E+OO 6.75E+OO u WD STJ 427370023 7/5/2 0 1 7 Cs-137 8.9 1 E-OI 1.77 E+OO 6.16E+OO u WD STJ 427370023 7/5/20 1 7 Fe-59 l.96E+OO 3.46E+OO 1.21E+O l u WD STJ 427370023 7/5/2017 1-1 31 6.5 1 E+OO 4.78 E+OO 7.45E+OO u WD STJ 427370023 7/5/20 1 7 K-40 -4.44E+Ol 2.26E+O l 6.IOE+O I u WD STJ 427370023 7/5/20 1 7 La-140 2.22E+OO 2.54E+OO 9.21E+OO u WD STJ 427370023 7/5/2017 Mn-54 -1.25E-01 1.57E+OO 5.23E+OO u WD STJ 427370023 7/5/2017 Nb-95 5.98E-OI l.56E+OO 5.38E+OO u WD STJ 427370023 7/5/20 1 7 Ru-103 -4.7 8E-OI 1.83 E+OO 5.74E+OO u WD STJ 427370023 7/5/20 1 7 Ru-106 l.56E+OI 1.49 E+O I 5.24 E+OI u WD STJ 427370023 7/5/20 1 7 Sb-1 24 -4.90 E-OI 4.14E+OO l.35 E+O l u WD STJ 427370023 7/5/2017 Sb-1 25 2.53E+OO 4.33E+OO 1.43E+O I u WD STJ 427370023 7/5/2017 Se-75 -1.08E+OO 2.14E+OO 5.76E+OO u WD STJ 427370023 7/5/20 1 7 Th-228 3.1 6E+OO 3.28E+OO 1.07E+O J u WD STJ 427370023 7/5/20 1 7 Zn-65 -3.75E+OO 3.52E+OO I.O I E+O I u WD STJ 427370023 7/5/2017 Zr-95 6.80E+OO 3.39E+OO l.18 E+O I u WD ST J 427370024 7/5/2017 1-131 -1.22E-01 1.85 E-01 6.24E-01 u WD LTW 427370025 7/5/2017 Ac-228 2.86E+OO 4.46E+OO 9.1 I E+OO u WD LTW 427370025 7/5/20 1 7 Ag-108m -5.84 E-OI 8.40 E-O I 2.67E+OO u WD LTW 427370025 7/5/2017 Ag-I !Om 2.77E+OO 1.76 E+OO 4.1 5E+OO u WD LTW 427370025 7/5/2017 Ba-1 40 1.66E+OO 3.96E+OO l.37E+OI u WD LTW 427370025 7/5/2017 Be-7 1.12E+OI 8.78 E+OO 3.07E+O I u WD LTW 427370025 7/5/2017 B E TA 9.96E-OI 6.95E-01 l.90E+OO u WD LTW 427370025 7/5/20 1 7 Ce-1 4 1 -3.1 9E+OO 2.1 I E+OO 5.29E+OO u WD LTW 427370025 7/5/20 1 7 Ce-1 44 -3.62E+OO 6.12E+OO 1.9 1 E+OI u WD LTW 427370025 7/5/20 1 7 Co-57 4.68E-OI 8.60 E-O l 2.74E+OO u WD LTW 427370025 7/5/2017 Co-58 5.69E-01 1.04E+OO 3.53E+OO u WD LTW 427370025 7/5/2017 Co-60 9.61E-02 1.06E+OO 3.61E+OO u WD LTW 427370025 7/5/20 1 7 Cr-5 1 -1.88E+OO 8.36E+OO 2.84E+OI u WO LTW 427 3 70025 7/5/20 1 7 Cs-134 -l.80E+OO l.22E+OO 3.12E+OO u D-87 Do n ald C. Cook Nuclea r Plant Ann u al Radio l ogical Env i ronmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS T YPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WD LTW 42 7370025 7/5/20 1 7 Cs-1 37 -1.7 4E-OI 9.06E-O I 2.93E+OO u WD LTW 427370025 7/5/20 1 7 Fe-59 2.1 6E+OO 2.36E+OO 8.04E+OO u WD LTW 427370025 7/5/2017 1-1 3 1 2.00E+OO 2.0 I E+OO 4.47E+OO u WD LTW 427370025 7/5/2017 K-40 -2.51E+OI l.34E+OI 4.07 E+O I u WD LTW 427370025 7/5/2017 La-1 40 -2.83E+OO l.29E+OO 8.14 E-OI u WD LTW 427370025 7/5/2017 Mn-54 -l.33 E+OO 9.95E-OI 2.58E+OO u WD LTW 427370025 7/5/2017 N b-95 -6.72E-O I 9.37E-OI 2.72E+OO u WD LTW 427370025 7/5/20 1 7 Ru-1 03 -4.77 E-O l 8.S OE-01 2.80E+OO u WD LTW 427370025 7/5/2017 Ru-1 06 8.85 E+OO 9.1 3E+OO 3.18 E+OI u WD LTW 427370025 7/5/2017 S b-1 24 7.0SE-01 2.29E+OO 7.90E+OO u WD LTW 427370025 7/5/2017 S b-1 25 3.57E-03 1.99E+OO 6.74 E+OO u WD LTW 427370025 7/5/20 1 7 Se-75 -4.2 1 E-OI 1.29E+OO 3.95E+OO u WD LTW 427370025 7/5/2017 T h-228 4.87E+OO 2.8 1 E+OO 7.26E+OO u WD LTW 427370025 7/5/20 1 7 Z n-65 -2.5 7E+OO 2.44E+OO 6.08 E+OO u WD LTW 42737002~

7/5/2017 Z r-95 -3.48E-O I 1.42E+OO 4.48 E+OO u WD LTW 427370026 7/5/2017 1-1 3 1 -7.8 3E-0 2 1.1 4E-01 3.83E-OI u WD STJ 4285 1 0023 7/1 9/2017 Ac-228 -2.64E+OO 4.63E+OO l.44E+OI u WD STJ 4285 1 0023 7/1 9/2017 Ag-1 08m l.05 E-OI 8.30E-OI 2.77E+OO u WD STJ 4285 1 0023 7/1 9/20 1 7 Ag-11 0111 -5.85E-01 l.13E+OO 3.63 E+OO u WD STJ 4285 10 023 7/19/2017 Ba-1 40 l.1 4 E+OI 6.34E+OO 2.14 E+O I u WD STJ 4285 10 023 7/19/20 1 7 Be-7 -2.06E+OO 8.27E+OO 2.68E+OI u WD STJ 4285 100 23 7/19/2017 BETA -6.40E-01 6.50E-01 2.32E+OO u WD ST J 4285 1 0023 7/1 9/20 1 7 Ce-1 41 -2.67E+OO 2.33E+OO 6.04 E+OO u WD ST J 4285 1 0023 7/19/20 1 7 Ce-1 44 -8.13 E+OO 6.92E+OO 2.04 E+O I u WD ST J 4285 1 0023 7/19/20 1 7 Co-57 -3.76£-0 1 8.25£-0 1 2.60E+OO u WD STJ 4285 100 23 7/19/20 1 7 Co-58 -1.71 E+OO 1.19 E+O O 2.99E+OO u WD STJ 4285 10 023 7/19/2017 Co-60 -5.90£-01 8.97E-01 2.68E+OO u WD STJ 4285 100 23 7/19/2017 C r-5 1 -9.4 8E+O O 1.05E+Ol 3.34E+O I u WD STJ 4285 10 023 7/19/2017 Cs-1 34 -3.3 0E-01 9.57E-0 1 2.92E+OO u WD STJ 4285 10 023 7/19/2017 Cs-1 37 I. I 6E-01 9.9 1 E-01 3.22 E+OO u WD STJ 4285 10 023 7/19/20 17 Fe-59 -2.7 5E-01 l.99 E+OO 6.53E+OO u WD STJ 4285 1 0023 7/19/20 17 1-131 1.43 E+OO 2.62E+OO 8.95E+OO u WD STJ 4285 1 0023 7/19/2017 K-40 2.36E+O I l.47E+Ol 3.64E+O I u WD STJ 4285 1 0023 7/1 9/2017 La-1 40 -1.59 E+OO 2.38E+OO 6.98E+OO u WD ST J 4285 1 0023 7/19/2017 Mn-54 -9.46E-OI 8.49E-O I 2.53E+OO u WD STJ 4285 10 023 7/19/2017 Nb-95 5.63E-0 1 9.99E-0 1 3.30E+OO u WD ST J 428510023 7/19/2017 Ru-10 3 -2.1 8E-01 1.1 3E+OO 3.66E+OO u WD STJ 428510023 7/19/2017 Ru-1 06 -l.7 9E+OO 8.29E+OO 2.25E+Ol u WD STJ 4285 1 0023 7/19/20 1 7 S b-1 24 -3.53 E+OO 2.44E+OO 5.63E+OO u WD ST J 4285 1 0023 7/19/2017 S b-1 25 -7.70E-OI 2.55E+OO 8.29E+OO u WD STJ 4285 1 0023 7/1 9/2017 Se-75 -1.9 0E+OO 1.23E+OO 3.6 7 E+OO u WD STJ 428510023 7/19/2017 T h-228 4.70£-01 2.82E+OO 6.99E+OO u WD STJ 4285 10 023 7/19/20 1 7 Z n-65 2.70£-02 l.79E+OO 5.23E+OO u WD STJ 4285 1 0023 7/19/2017 Zr-95 3.81£-01 l.65E+OO 5.36E+OO u WD STJ 4285 1 0024 7/19/2017 1-131 7.74E-01 2.97E-01 8.60E-OI u WD LTW 428510025 7/19/2017 Ac-228 3.67E+OO 3.40E+OO l.20 E+OI u WD LTW 4285 100 25 7/1 9/20 1 7 Ag-1 08111 1.1 I E+OO 7.46E-01 2.52E+OO u WD LTW 4285 1 00 25 7/1 9/20 1 7 Ag-1 1 0111 -l.39E+OO 1.30E+OO 3.63E+OO u WD LTW 4285 1 0025 7/19/20 1 7 Ba-14 0 -8.45E+OO 5.7 5 E+OO 1.58 E+Ol u WD LTW 428510025 7/19/20 1 7 Be-7 2.51 E+OO 6.76 E+OO 2.28E+O I u D-88 Do n ald C. C ook N u clear Plan t Annual Radiologi c al Environmental Operating Report 2017 SAMPLE E ND CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pC i/L) (pCi/L) (pCi/L) WD LTW 428510025 7/19/20 1 7 BETA 8.13E-02 9.32E-0 1 3.03E+OO u WD LTW 4285 1 0025 7/19/20 1 7 Ce-141 2.99E-OI l.67E+OO 5.32E+OO u WD LTW 4285 1 0025 7/19/20 1 7 Ce-1 44 1.08 E+OI 9.83E+OO l.72 E+O I u WD LTW 4285 1 0025 7/19/20 1 7 Co-57 -4.9 l E-0 I 7.47E-O I 2.29E+OO u WD LTW 4285 1 0025 7/19/20 1 7 Co-58 7.46 E-01 9.09E-01 3.04E+OO u WD LTW 4 285 10025 7/19/20 1 7 Co-60 4.1 7E-OI 9.00E-0 1 3.09 E+OO u WD LTW 4285 1 0025 7/19/20 1 7 C r-5 1 -8.09 E+OO 8.71E+OO 2.74E+O I u WD LTW 428510025 7/19/20 1 7 Cs-1 3 4 4.53E-02 9.04E-01 2.90E+OO u WD LTW 428510025 7/19/20 1 7 Cs-1 37 7.34E-Ol 8.22E-Ol 2.78E+OO u WD LTW 428510025 7/19/20 17 Fe-59 2.33 E+OO l.97E+OO 6.93E+OO u WD LTW 4285 1 0025 7/19/20 17 1-131 5.4 1 E-OI 2.1 9E+OO 7.44E+OO u WD LTW 4 285 1 0025 7/19/20 17 K-40 -1.30E+OI l.43E+O I 4.1 9E+O I u WD LTW 428510025 7/1 9/20 1 7 La-14 0 9.85E-OI 1.70E+OO 5.87E+OO u WD LTW 428510025 7/19/20 1 7 Mn-54 -2.28E-O I 7.83E-O I 2.42E+OO u WD LTW 428510025 7/19/20 1 7 N b-95 4.40E-OI 9.03E-O l 2.98E+OO u WD LTW 428510025 7/19/2017 R u-1 03 2.83E-OI 9.82E-O I 3.28E+OO u WD LTW 428510025 7/19/20 17 Ru-1 06 l.l5 E+O I 7.68E+OO 2.59E+O I u WD LTW 428510025 7/19/20 1 7 Sb-1 24 l.60E+OO 2.1 7 E+OO 6.60E+OO u WD LTW 428510025 7/1 9/20 1 7 Sb-1 25 4.l 9E+OO 2.38E+OO 7.94E+OO u WD LTW 4285 1 0025 7/19/20 1 7 Se-75 -8.58E-O l 1.12 E+OO 3.62E+OO u WD LTW 428510025 7/19/20 17 Th-228 3.43E+OO 3.32E+OO 6.59E+OO u WD LTW 428510025 7/19/20 1 7 Z n-65 -7.60E-OI l.39 E+OO 4.36E+OO u WD LTW 428510025 7/19/20 1 7 Z r-95 -I .0 4E+OO 1.43 E+OO 4.20E+OO u WD LTW 4285 1 0026 7/19/20 17 1-1 3 1 -1.6 1 E-0 1 2.62E-01 8.85E-0 1 u WD STJ 429796023 8/2/2017 Ac-228 3.30 E+OO 4.81 E+OO 1.63E+O I u WD STJ 429796023 8/2/20 17 Ag-108m -1.27E-01 9.00E-0 1 2.98E+OO u WD STJ 429796023 8/2/20 1 7 Ag-I !Om -1.48 E+OO I .46E+OO 3.27E+OO u WD STJ 429796023 8/2/2017 Ba-140 -5.87E+OO 5.47E+OO l.58E+O l u WD STJ 429796023 8/2/20 17 Be-7 5.9 1 E-OI 8.29E+OO 2.49E+O I u WD STJ 429796023 8/2/20 17 BETA 2.08 E+OO l.23 E+OO 3.6 1 E+OO u WD STJ 429796023 8/2/20 1 7 Ce-1 41 -2.63E+OO 2.04E+OO 5.8 1 E+OO u WD STJ 429796023 8/2/20 1 7 Ce-1 44 6.66E-OI 6.96E+OO 2.25E+O I u WD STJ 4 29796023 8/2/20 1 7 Co-57 l.69E+OO 1.1 7E+OO 2.70E+OO u WD STJ 429796023 8/2/20 1 7 Co-58 -6.91 E-O I 7.88E-O I 2.1 3E+OO u WD STJ 429796023 8/2/20 1 7 Co-60 -3.26E-O I 9.51E-O l 2.99E+OO u WD STJ 429796023 8/2/20 1 7 C r-51 7.69E+OO 9.80E+OO 3.42E+O I u WD STJ 429796023 8/2/20 1 7 Cs-1 34 -2.91 E-02 l.06 E+O O 3.40E+OO u WD STJ 429796023 8/2/20 1 7 Cs-137 -7.88 E-OI 9.46E-O I 2.74E+OO u WD STJ 429796023 8/2/20 1 7 Fe-59 5.70E-OI 2.28E+OO 7.85E+OO u WD ST J 429796023 8/2/20 1 7 1-131 -3.34 E+OO l.88E+OO 4.94E+OO u WD STJ 429796023 8/2/20 1 7 K-40 8.04E+OO l.46E+O I 4.79E+O I u WD ST J 429796023 8/2/20 1 7 La-1 40 -l.20 E+OO 2.0 3E+OO 6.04E+OO u WD STJ 429796023 8/2/20 1 7 Mn-54 -2.89E-OI 1.1 I E+OO 3.44E+OO u WD STJ 429796023 8/2/20 1 7 N b-95 3.3 1 E+OO 1.40 E+OO 4.6 1 E+OO u WD STJ 42 9796023 8/2/20 1 7 Ru-103 -1.6 6E+OO l.1 8E+OO 3.28E+OO u WD STJ 429 796023 8/2/20 17 R u-1 06 -l.55 E+O I l.05E+Ol 2.79E+O I u WD STJ 4297 96 023 8/2/20 1 7 Sb-1 24 l.99E+OO 2.71 E+OO 9.56E+OO u WD STJ 4297 96023 8/2/2017 Sb-1 25 -4.7 5 E-0 1 2.71E+OO 8.96E+OO u WD STJ 429796023 8/2/20 1 7 Se-75 4.97E-O l 1.2 7E+OO 4.42 E+OO u WD STJ 429796023 8/2/20 1 7 T h-228 4.0 l E+OO 4.IO E+OO 7.50E+OO u D-89 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE E ND CONC ST D.D E V. MD C FLAGS TYPE STATIO N LS N D ATE NUCL ID E (pCi/L) (pC i/L) (pC i/L) WD STJ 429796023 8/2/20 1 7 Z n-65 -2.70£+00 1.97£+00 5.1 2£+00 u WD STJ 429796023 8/2/20 1 7 Zr-95 -3.04£+00 2.1 4£+00 5.5 3£+00 u WD STJ 429796024 8/2/2 01 7 1-1 3 I -8.62E-02 2.37£-01 7.99E-O I u WD LTW 429796025 8/2/20 1 7 Ac-228 7.56£-0 1 4.94£+00 I.74E+OI u WD LTW 429796025 8/2/20 1 7 Ag-1 08m -1.ll E+OO 1.1 9£+00 3.65E+OO u WD LTW 429796025 8/2/20 1 7 Ag-I !Om 3.00E+OO 1.8 1£+00 6.56£+00 u WD LTW 429796025 8/2/20 1 7 Ba-1 40 6.53E-O I 5.9IE+OO 1.97£+0 1 u WD LTW 429796025 8/2/20 1 7 Be-7 -2.67£+00 1.14£+0 1 3.32£+0 1 u WD LTW 429796025 8/2/20 17 B E TA 1.91£+00 1.1 7£+00 3.47£+00 u WD LTW 429796025 8/2/20 1 7 Ce-1 41 8.1 2£-0 1 1.97£+00 6.5 3£+00 u WD LTW 429796025 8/2/20 1 7 Ce-1 44 -1.20£+0 1 7.98£+00 2.24£+0 1 u WO LTW 429796025 8/2/20 1 7 Co-57 -8. l l E-0 1 9.84E-OI 3.0 4£+00 u WD LTW 429 7 96025 8/2/20 1 7 Co-58 -4.95£-01 1.44£+00 3.84E+OO u WD LTW 429796025 8/2/20 1 7 Co-60 -1.II E+OO 1.52£+00 4.45£+00 u WD LTW 429796025 8/2/20 1 7 C r-5 1 3.38£+00 1.09£+0 1 3.80£+0 1 u WD LTW 429796025 8/2/2 017 Cs-1 34 -4.94£-01 1.34£+00 3.87£+00 u WO LTW 429796025 8/2/20 1 7 Cs-1 37 1.89£+00 1.37£+00 4.7 8£+00 u WD LTW 429796025 8/2/20 1 7 Fe-59 -2.9 1£+00 2.55£+00 6.92£+00 u WD LTW 429796025 8/2/20 1 7 1-1 3 1 -6.96£+00 2.9 1£+00 6.47£+00 u WD LTW 429796025 8/2/20 1 7 K-40 -1. I 9 E+O I 1.65£+0 1 5.3 1£+0 1 u WD LTW 429796025 8/2/20 1 7 La-1 40 2.20£+00 1.69£+00 6.66£+00 u WD LTW 429796025 8/2/20 1 7 Mn-54 -1.60£+00 I. 1 2£+00 2.59£+00 u WD LTW 429796025 8/2/20 1 7 N b-95 7.84E-02 1.07£+00 3.08£+00 u WD LTW 429796025 8/2/20 1 7 R u-I 03 -2.1 I E+OO 1.45£+00 3.97£+00 u WD LTW 429796025 8/2/2 01 7 Ru-I 06 8.1 8E-O I I.O I E+OI 3.3 1 E+O I u WD LTW 429796025 8/2/20 17 S b-1 24 5.3 1£-0 1 2.7 1£+00 9.0 2£+00 u WD LTW 429796025 8/2/20 1 7 Sb-1 25 -2.03£+00 3.44£+00 I.I OE+OI u WD LTW 429796025 8/2/20 1 7 Se-75 4.53£+00 2.1 2E+OO 5.20£+00 u WD LTW 429796025 8/2/20 17 T h-228 -3.99£+00 3.05E+OO 8.22£+00 u WD LTW 429796025 8/2/20 1 7 Zn-65 6.36E-O I 2.65£+00 9.05E+OO u WD LTW 429796025 8/2/20 1 7 Zr-95 1.47£+00 2.68£+00 8.1 8E+OO u WD LTW 429796026 8/2/20 1 7 1-1 3 1 5.87£-02 2.6 1 E-0 1 8.47E-O I u WD STJ 431026023 8/16/20 1 7 Ac-228 2.1 4£+0 1 8.22£+00 2.37£+01 u WD STJ 43 1 026023 8/16/20 I 7 Ag-1 08m 2.1 7£-0 1 l.26E+OO 4.1 5£+00 u WD STJ 43 1 026023 8/16/20 1 7 Ag-I !Om 4.1 I E-02 1.6 1£+00 5.36£+00 u WD STJ 43 1 026023 8/16/20 1 7 Ba-1 40 -6.34E+OO 6.76£+00 1.66£+01 u WO STJ 43 1 026023 8/16/2 0 1 7 Be-7 -1.25E+O I 1.1 5£+0 1 2.74£+01 u WO STJ 43 1 026023 8/16/20 1 7 BETA 1.63£+0 0 8.54£-01 2.32E+OO u WD STJ 43 1 026023 8/16/20 1 7 Ce-1 4 1 2.03E-O I 2.44£+00 7.07E+OO u WD STJ 43 1 026023 8/16/20 1 7 Ce-1 44 6.31£+00 8.7 1£+00 2.8 1£+01 u WD STJ 43 1 026023 8/16/20 1 7 Co-57 -9.08E-O I 1.1 8£+00 3.53£+00 u WD STJ 43 1 026023 8/1 6/20 1 7 Co-58 -2.29£+00 1.5 1£+00 4.0 6E+OO u WD STJ 43 1 026023 8/16/20 1 7 Co-60 -4.95£-0 1 l.36E+OO 4.1 IE+OO u WD STJ 43 1 026023 8/1 6/20 1 7 Cr-5 1 -4.0I E+OO 1.1 7£+0 1 3.82E+OI u WD STJ 43 1 026023 8/16/20 1 7 Cs-1 34 -6.81 E-0 1 1.20£+00 3.74E+OO u WD STJ 43 1 026023 8/16/20 I 7 Cs-1 37 1.73E-O I 1.1 5E+OO 3.97E+OO u WD ST J 43 1 026023 8/16/20 1 7 Fe-59 5.57£+00 4.54E+OO 9.6 1 E+OO u WD STJ 43 1 026023 8/1 6/20 1 7 1-1 3 1 2.38£+00 1.73£+00 5.59£+00 u WO STJ 43 1 026023 8/16/20 1 7 K-40 2.46E+OO 2.89£+0 1 5.1 9£+01 u WD STJ 43 1 026023 8/16/20 1 7 La-1 40 l.35E-O I 1.96£+00 6.0 5£+00 u D-90 Do na ld C. Cook N u clear Pl ant Annu a l Radiologi ca l Envi r onmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DAT E NUCLIDE (p C i/L) (pC i/L) (pC i/L) WD STJ 431026023 8/1 6/20 17 Mn-54 -8.65E-OI l.25E+OO 3.86E+OO u WD STJ 431026023 8/16/20 1 7 N b-95 l.37E+OO l.53E+OO 4.93 E+OO u WD STJ 431026023 8/16/2 0 1 7 Ru-103 -8.80E-OI l.30E+OO 3.90E+OO u WD STJ 43 1 026023 8/16/20 17 R u-10 6 I.OI E+OI l.14 E+OI 3.84E+O I u WD STJ 43 1 026023 8/1 6/20 17 Sb-1 24 3.84E+OO 3.26E+O O 1.21 E+O I u WD STJ 431026023 8/1 6/20 1 7 Sb-1 25 -6.0IE-01 2.64E+OO 8.43E+OO u WD STJ 43 1 026023 8/1 6/2017 Se-7 5 2.05 E+OO l.5 4E+OO 5.32E+OO u WD STJ 43 1 026023 8/1 6/20 17 T h-228 3.I SE-01 4.84E+OO I .09E+O I u WD STJ 43 1 026023 8/16/20 17 Zn-65 l.88 E+OO 2.46E+OO 8.69E+OO u WO STJ 43 1 026023 8/1 6/20 1 7 Z r-95 3.68E+OO 2.42 E+OO 8.1 2E+OO u WD STJ 431026024 8/1 6/20 17 1-131 -4.90E-02 2.61E-OI 8.68E-O I u WD LTW 431026025 8/16/2 0 1 7 Ac-228 -8.24E+OO 5.59E+OO l.43E+OI u WD LTW 43 1 026025 8/1 6/20 17 Ag-10 8 m -4.07E-01 l.06E+OO 3.23E+OO u WD LTW 4 3 1026025 8/16/20 1 7 Ag-110111 1.20E+OO l.68E+OO 5.69E+OO u WD LTW 43 1 026025 8/16/20 1 7 Ba-1 40 -3.49E+OO 4.65E+OO l.40E+O I u WD LTW 431026025 8/16/20 1 7 Be-7 9.67E+OO 8.25E+OO 2.92E+O I u WD LTW 43 1 026025 8/16/20 1 7 BETA 7.96E-O l 7.62E-01 2.20E+OO u WD LTW 43 1 026025 8/16/20 1 7 Ce-141 -l.57E+OO 2.2 0E+OO 6.15 E+OO u WD LTW 43 1 026025 8/16/20 17 Ce-1 44 1.0I E+OI 6.66E+OO l.95E+O I u WD LTW 43 1 026025 8/1 6/20 1 7 Co-57 6.2 1 E-OI 9.33 E-OI 3.09E+OO u WD LTW 43 1 026025 8/16/20 17 Co-58 -l.03E+OO 1.I OE+OO 3.06E+OO u WD LTW 43 1 026025 8/16/20 1 7 Co-60 -1.1 4E+OO l.06E+OO 2.82E+OO u WD LTW 431026025 8/16/20 17 C r-5 1 8.3 6E+OO I .OOE+O I 3.22E+O I u WD LTW 431026025 8/16/20 17 Cs-13 4 -4.86E-O I I. 13 E+OO 3.43E+OO u WD LTW 431026025 8/1 6/20 1 7 Cs-137 l.2 6E+OO 1.47E+OO 3.9 1 E+OO u WD LTW 43 1 026025 8/1 6/20 17 Fe-59 -I.4 1 E+OO l.83E+OO 5.42E+OO u WD LTW 431026025 8/1 6/20 1 7 1-1 3 1 4.71E-01 l.5 0E+OO 5.15E+OO u WD LTW 4 3 1026025 8/1 6/20 1 7 K-40 -l.90E+OI I .66E+O I 4.83E+O I u WD LTW 431026025 8/16/20 17 La-140 -I.5 3E+OO l.66E+OO 4.47E+OO u WD LTW 431026025 8/16/20 17 Mn-54 -7.43 E-OI l.1 5E+OO 3.38E+OO u WD LTW 43 1 026025 8/16/20 1 7 Nb-95 5.8 1 E-01 l.1 8E+OO 3.97E+OO u WD LTW 43 1 026025 8/16/20 1 7 Ru-1 03 -l.5 7E+OO l.12 E+OO 3.04E+OO u W D LTW 43 1 026025 8/16/20 1 7 Ru-1 06 7.53E+OO 9.4 1 E+OO 3.26E+O I u WD LTW 4 3 1 026025 8/16/20 17 Sb-1 24 -4.85E+OO 2.74E+OO 5.5 9E+OO u WD LTW 431026025 8/16/20 1 7 Sb-1 25 -l.34 E+OO 2.75E+OO 7.74E+OO u WD LTW 43102602 5 8/1 6/20 1 7 Se-75 -l.44E+OO l.49E+OO 4.1 9E+OO u WD LTW 431026025 8/1 6/20 1 7 Th-228 l.89E+OO 4.3 1 E+OO 7.32E+OO u WO LTW 431026025 8/1 6/20 1 7 Z n-65 2.68E+OO 2.20E+OO 7.60E+OO u WD LTW 43 1 026025 8/16/20 1 7 Zr-95 2.49E+OO 2.1 8E+OO 7.55E+OO u WD L TW 43 1 026026 8/1 6/20 17 1-13 1 3.33E-OI 2.60E-01 7.89E-O I u WD STJ 432021023 8/30/20 17 Ac-228 I .35E+OO 4.85E+OO 8.49E+OO u WD STJ 43202 1 023 8/30/20 17 Ag-10 8 m 2.45E-O I 5.0I E-0 1 l.69E+OO u WD STJ 432021023 8/30/20 1 7 Ag-II Om -l.35E+OO 8.28E-O I 2.24E+OO u WD STJ 432021023 8/30/20 1 7 B a-1 40 -l.20E+OO 3.09E+OO I.OOE+OI u WD STJ 432021023 8/30/20 17 Be-7 9.78E-O I 4.70E+OO l.58E+O I u WD STJ 43202 1 023 8/30/20 1 7 BETA 6.34E-OI 7.38E-O I 2.22E+OO u WD ST J 432021023 8/30/20 17 Ce-1 4 1 -3.26E+OO I.72E+OO 3.51E+OO u WD STJ 43202 1 023 8/30/20 1 7 Ce-1 44 -3.09 E-OI 4.3 1 E+OO l.38E+OI u WD STJ 43202 1 023 8/30/20 1 7 Co-57 -6.47E-01 5.99 E-01 l.83E+OO u WD STJ 4 3202 1023 8/30/20 17 Co-58 -7.35E-OI 5.64 E-01 1.61E+OO u 0-9 1 Donald C. Cook Nuclea r Plant Annual Radiological Environmental Operating Report 2 017 SAMPLE E ND CONC STD.DEV. MDC FLAGS TYPE STATION LSN DAT E NUCLIDE (pCi/L) (pCi/L) (pCi/L) WD STJ 43202 10 23 8/30/20 17 Co-60 5.46£-02 6.34£-01 2.1 3£+00 u WD ST J 43202 10 23 8/30/2017 C r-5 1 -3.38£+00 5.76£+00 1.92£+01 u WD STJ 43202 1 023 8/30/2017 Cs-134 -5.58£-0 1 6.27£-01 1.90£+00 u WD STJ 43202 1 023 8/30/20 17 Cs-1 37 7.33£-0 1 5.9 1£-01 l.93E+OO u WD ST J 43202 1 023 8/30/2017 Fe-59 -6.09£-0 1 1.1 3£+00 3.69£+00 u WD STJ 43202 1 023 8/30/20 1 7 1-1 3 1 -1.1 2£+00 1.28£+00 4.1 4£+00 u WD STJ 43202 1 023 8/30/2017 K-40 -7.04£+00 l. lOE+OI 2.90£+0 1 u WD STJ 43202 1 023 8/30/2017 La-1 40 -2.44£+00 1.31£+00 2.76£+00 u WD STJ 43202 102 3 8/30/2017 Mn-54 -7.48£-0 1 8.92£-01 1.8 3£+00 u WD STJ 43202 102 3 8/30/2017 Nb-95 -1.32£-0 I 5.77£-01 1.85£+00 u WD ST J 43202 10 23 8/30/2 01 7 Ru-I 03 1.82£-01 8.l l E-01 J.9 4E+OO u WD STJ 43202 10 23 8/30/2017 Ru-1 06 -1.0l E+O I 5.35£+00 1.44£+01 u WD STJ 43202 1 023 8/30/2017 S b-1 24 1.1 8E+OO 1.33£+00 4.53£+00 u WD STJ 43202 1 023 8/30/2017 Sb-1 25 -3.26£-0 1 1.52£+00 5.05£+00 u WD STJ 43202 10 23 8/30/20 1 7 Se-75 4.68£-01 7.57£-0 1 2.60£+00 u WD STJ 43202 10 23 8/30/20 1 7 T h-228 -2.47£+00 2.27£+00 4.55£+00 u WD STJ 43202 10 23 8/30/2017 Z n-65 -4.29£-0 1 1.04£+00 3.3 1£+00 u WD STJ 43202 10 23 8/30/2 0 1 7 Z r-95 -2.26£-0 1 9.00E-0 1 2.87£+00 u WD STJ 43202 10 24 8/30/2017 1-1 3 1 5.3 1£-02 2.9 1£-01 9.49£-0 I u WD LTW 43202 10 25 8/30/2017 Ac-228 9.35£-01 4.29£+00 7.72£+00 u WD LTW 43202 1 025 8/30/2017 Ag-1 08m 1.83£-01 4.2 1£-01 1.4 3£+00 u WD LTW 43202 10 25 8/30/20 1 7 Ag-I I Om -1.59£-0 1 5.85£-01 1.96£+00 u WD LTW 43202 10 25 8/30/20 1 7 Ba-1 40 7.4 1£+00 3.20£+00 9.74E+OO u WD LTW 43202 10 25 8/30/20 17 Be-7 -2.88£+00 4.0 7£+00 1.3 1 E+OI u WD LTW 432021025 8/30/2017 BETA 9.40£-0 1 9.25£-0 1 2.80£+00 u WD LTW 43202 10 25 8/30/2017 Ce-1 41 1.1 6£+00 1.82£+00 2.49£+00 u WD LTW 43202 10 25 8/30/2017 Ce-1 44 2.74£+00 3.09£+00 l.O I E+OI u WD LTW 43202 1 025 8/30/2017 Co-57 6.I O E-0 2 3.93£-0 1 1.30£+00 u WD LTW 43202 1 025 8/30/20 1 7 Co-58 -5.0lE-0 1 4.82£-01 1.40£+00 u WD LTW 43202 1 025 8/30/2017 Co-60 2.64£-0 1 5.1 2£-01 1.72£+00 u WD LTW 43202 1 025 8/3 0/2017 C r-5 1 1.4 6£+00 4.04£+00 1.39£+0 1 u WD LTW 43202 10 25 8/3 0/2017 Cs-134 5. IO E-01 5.50£-01 1.79£+00 u WD LTW 43202 10 25 8/3 0/20 1 7 Cs-1 37 -3.93£-0 1 5.08£-01 1.57£+00 u WD LTW 43202 10 25 8/30/20 1 7 Fe-59 2.32£+00 1.20£+00 3.89£+00 u WD L TW 43202 1 025 8/30/2017 1-131 -7.ll E-02 9.64£-0 1 3.27£+00 u WD LTW 43202 1 025 8/30/2017 K-40 -4.27£+00 1.05£+0 1 2.42£+01 u WD LTW 43202 10 25 8/30/20 1 7 La-1 40 1.25£+00 9.70£-0 1 3.25E+OO u WD L TW 43202 1 025 8/30/2017 Mn-54 8.70£-01 4.02£-0 1 1.48E+OO u WD LTW 43202 10 25 8/30/20 1 7 N b-95 -2.07£+00 9.92£-01 1.65£+00 u WD LTW 43202 1 025 8/3 0/2017 Ru-103 -1.99£-0 1 5.43£-01 1.5 8£+00 u WD LTW 43202 10 25 8/30/2017 Ru-I 06 6.89£+00 4.67£+00 l.5 2E+OI u WD LTW 43202 1 025 8/3 0/2017 S b-1 24 1.0 4£+0 0 1.20£+00 4.03£+00 u WD LTW 43202 10 25 8/30/2017 Sb-1 25 -4.25£-0 1 1.1 8E+OO 3.90£+00 u WD LTW 432021025 8/30/2017 Se-75 2.08£-01 6.30£-01 1.99£+00 u WD LTW 43202 1 025 8/30/20 1 7 T h-2 28 3.23£+00 2.lO E+OO 3.44E+OO u WD LTW 43202 10 25 8/30/2017 Z n-65 8.31£-0 1 1.0 l E+OO 3.44E+OO u WD LTW 43202 1 025 8/30/20 1 7 Z r-95 -6.88£-01 8.74£-01 2.64£+00 u WD LTW 43202 1 026 8/30/2017 1-13 1 1.46£-01 2.82£-01 8.85£-01 u WD ST J 43295702 3 9/13/20 1 7 Ac-228 -7.08£+00 5.2 1£+00 1.3 9£+01 u WD STJ 43295702 3 9/13/20 1 7 A g-10 8m 8.69£-0 1 8.9 1£-01 3.02£+00 u D-92 Do na ld C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.D EV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pC i/L) WD STJ 432957023 9/13/2017 Ag-11 0 111 l.88E+OO l.69E+OO 5.34E+OO u WD STJ 432957023 9/13/2017 Ba-140 -l.27E+OI 6.04E+OO l.44 E+OI u WD STJ 432957023 9/13/20 1 7 Be-7 -1.52E+Ol 9.45E+OO 2.57E+O l u WD ST J 432957023 9/13/20 1 7 BETA 3.28E+OO l.4 1 E+OO 3.94E+OO u WD STJ 432957023 9/13/20 1 7 Ce-14 1 -3.27E+OO l.80E+OO 4.91E+OO u WD STJ 432957023 9/13/20 1 7 Ce-1 44 -8.28E+OO 6.50E+OO l.93E+OI u WD STJ 432957023 9/13/20 1 7 Co-5 7 -3.96E-Ol 7.72E-Ol 2.46E+OO u WD STJ 432957023 9/13/20 1 7 Co-58 -6.44 E-O l 9.40E-O l 2.95E+OO u WD STJ 432957023 9/13/20 17 Co-60 3.l l E-01 l.04E+OO 3.44E+OO u WD STJ 432957023 9/13/20 1 7 C r-51 -1.73E+OO 9.37E+OO 3.1 4E+O I u WD ST J 432957023 9/13/20 1 7 Cs-134 -2.9 7 E-O I l.02E+OO 3.34E+OO u WD STJ 432957023 9/13/20 17 Cs-137 -6.19E-02 l.lO E+OO 3.49E+OO u WD STJ 432957023 9/13/20 1 7 Fe-59 1.1 9E+OO 2.29E+OO 7.76E+OO u WD STJ 43295 7 023 9/1 3/20 1 7 1-1 3 1 2.6 1 E-Ol l.5 7E+OO 5.06E+OO u WD STJ 432957023 9/13/20 1 7 K-40 2.64E+OO l.98E+OI 4.20E+Ol u WD STJ 432957023 9/13/20 1 7 La-14 0 -5.53E-Ol l.23E+OO 3.82E+OO u WD STJ 432 9 57023 9/13/20 17 Mn-54 -1.27E+OO l.02E+OO 2.93E+OO u WD STJ 432957023 9/13/2017 Nb-95 1.92E-O I 1.0 2E+OO 3.50E+OO u WD STJ 432957023 9/13/20 1 7 Ru-1 03 9.97E-O l 1.1 3E+OO 3.47E+OO u WD STJ 432957023 9/13/20 17 R u-1 06 1.15 E+O l 9.89E+OO 3.30E+OI u WD STJ 432 9 57023 9/13/20 1 7 Sb-1 24 -3.0 I E+OO 3.44E+OO 8.40E+OO u WD STJ 432957023 9/1 3/20 1 7 Sb-1 25 5.16E-OI 2.84E+OO 9.49E+OO u WD STJ 432957023 9/13/20 1 7 Se-75 8.S l E-01 l.32E+OO 4.1 7E+OO u WD STJ 432957023 9/13/2017 T h-228 l.0 8E+O l 2.90E+OO 5.23E+OO WD STJ 432957023 9/13/20 1 7 Z n-65 3.93E+OO 2.64E+OO 9.07E+OO u WD STJ 43 2957023 9/1 3/20 1 7 Z r-95 -5.72E-OI l.60E+OO 5.23E+OO u WD STJ 432957024 9/1 3/20 1 7 1-131 -4.24E-Ol 2.SOE-01 8.8 1 E-Ol u WO LTW 432957025 9/1 3/20 1 7 Ac-228 -9.18 E+OO 5.2 1 E+OO l.05E+OI u WD LTW 432957025 9/13/20 1 7 Ag-10 8111 -7.18 E-OI l.07E+OO 3.2 1 E+OO u WD LTW 432957025 9/13/20 1 7 Ag-11 0111 -2.40E+OO 1.62E+OO 4.15 E+OO u WO LTW 432957025 9/13/20 1 7 Ba-1 40 -8.8 1 E+OO 4.72E+OO l.1 9E+O I u WD LTW 432957025 9/1 3/20 1 7 Be-7 -1.29E+O I 1.0 4E+O l 3.1 6E+O I u WD LTW 432957025 9/13/20 1 7 BETA 2.87E+OO l.15 E+OO 3.14 E+OO u WD LTW 43295 7025 9/13/20 17 Ce-14 1 -1.8 1 E+OO 2.02E+OO 5.91E+OO u WO LTW 432957025 9/13/20 17 Ce-144 -4.98E+OO 7.79E+OO 2.1 4E+OI u WD LTW 432957025 9/13/20 1 7 Co-57 -9.73E-OI 9.62E-OI 2.8 1 E+OO u WD LTW 432957025 9/13/20 17 Co-58 l.65E-0 1 1.0 4E+OO 3.42E+OO u WD LTW 432957025 9/13/2017 Co-6 0 7.8 5E-01 1.32E+OO 4.53E+OO u WD LTW 432957025 9/13/2017 C r-5 1 -1.42E+O l l.04E+O I 2.98E+O I u WD LTW 4329 57025 9/13/20 1 7 Cs-134 l.02E+OO l.ll E+OO 3.83E+OO u WD LTW 432957025 9/1 3/2017 Cs-137 -1.6 1 E-0 1 l.05 E+O O 3.32E+OO u WD LTW 432957025 9/1 3/20 1 7 Fe-59 3.20E+OO 2.50E+OO 8.80E+OO u WD LTW 432957025 9/13/20 17 1-1 3 1 l.5 7 E+OO l.71 E+OO 5.70E+OO u W D LTW 432957025 9/13/2017 K-40 -7.75E+OO I .48E+O I 4.90E+O l u W D LTW 432957025 9/13/20 1 7 La-1 40 -l .46E+OO 2.1 l E+OO 6.15 E+OO u WD LTW 432957025 9/13/20 17 Mn-54 -8.00E-01 l.20E+OO 3.64E+OO u WD LTW 432957025 9/13/2017 Nb-95 -6.29E-Ol 1.1 8E+OO 3.6 7 E+OO u W D LTW 432957025 9/13/20 1 7 Ru-103 -4.68E-OI l.04E+OO 3.39E+OO u WD LTW 432 957025 9/13/20 1 7 Ru-1 06 1.64E+Ol 1.1 3E+O I 3.54E+O l u WD LTW 432957025 9/1 3/20 1 7 Sb-1 24 -9.93E-01 2.94E+OO 9.45E+OO u D-93 Donald C. Cook Nuclear Plant Annual Radiological Environment a l Operating Repo rt 2017 SAMPLE E ND CONC STD.DEV. MDC FLAGS TYPE STATION LSN D ATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WD LTW 432957025 9/13/20 1 7 Sb-1 25 3.94E-O I 2.93E+OO 9.44E+OO u WD LTW 432957025 9/13/20 1 7 Se-75 l.06E+OO I .48E+OO 4.99E+OO u WD LTW 432957025 9/13/20 1 7 Th-228 1.94E-01 4.30E+OO 8.1 4E+OO u WD LTW 432957025 9/13/20 1 7 Zn-65 I .97E-02 2.99E+OO 8.67E+OO u WD LTW 432957025 9/13/20 1 7 Zr-95 3.52E-O I l.60E+OO 5.33E+OO u WD LTW 432957026 9/13/20 1 7 1-1 31 -6.49E-O l 2.06E-O l 7.92E-OI u WD STJ 433918023 9/27/20 1 7 Ac-228 -l.57E+OO 4.17E+OO 1.45E+OI u WD STJ 4339 1 8023 9/2 7/20 1 7 Ag-1 08m -3.72E-O I 8.66E-O I 2.78E+OO u WD STJ 433918023 9/27/20 1 7 Ag-I I Om -1.I OE+OO l.21E+OO 3.26E+OO u WD STJ 433918023 9/27/20 1 7 Ba-1 40 4.02E+OO 5.15E+OO 1.76E+Ol u WD STJ 4339 1 8023 9/2 7/20 1 7 Be-7 l.6 1 E+OO 9.02E+OO 3.0 I E+O l u WD STJ 4339 1 8023 9/27/20 1 7 BETA 2.47E+OO l.1 5E+OO 3.1 9E+OO u WD STJ 4339 1 8023 9/27/20 1 7 Ce-1 41 -2.39E+OO 1.93£+00 5.47E+OO u WD STJ 4339 1 8023 9/27/20 1 7 Ce-1 44 -5.6 1 E+OO 6.9 1 E+OO 2.07E+OI u WD STJ 4339 1 8023 9/27/20 1 7 Co-57 -8.I SE-0 1 9.27E-0 1 2.77E+OO u WD STJ 4339 1 8023 9/27/20 1 7 Co-58 1.36E+OO 9.70E-0 1 3.39E+OO u WD STJ 433918023 9/27/20 1 7 Co-60 -6.30E-Ol l.06E+OO 3.2 1 E+OO u WD STJ 4339 1 8023 9/27/20 1 7 Cr-5 1 -3.1 7E+OO 8.02E+OO 2.63E+OI u WD S T J 433918023 9/27/20 1 7 Cs-134 l.69E+OO l.20E+OO 4.1 3E+OO u WD STJ 433918023 9/27/20 1 7 Cs-1 37 1.74E+OO 1.1 2E+OO 3.86E+OO u WD STJ 4339 1 8023 9/27/20 1 7 Fe-59 -1.08E-O I 1.84£+00 6.1 3E+OO u WD STJ 433918023 9/27/20 1 7 1-1 31 -7.95 E-O I 2.08E+OO 6.79E+OO u WD STJ 4339 1 8023 9/27/20 1 7 K-40 -1.90E+OI 1.67£+01 5.3 1 E+OI u WD STJ 433918023 9/2 7/20 1 7 La-1 40 1.43E+OO l.87E+OO 6.59E+OO u WD STJ 433918023 9/27/20 17 M n-54 -9.0 l E-0 1 9.48E-O I 2.6 1 E+OO u WD ST J 433918023 9/27/20 1 7 Nb-95 -3.23E-O 1 9.66E-O I 2.98E+OO u WD STJ 4339 1 8023 9/27/20 17 R u-103 2.69E-O I 9.84E-O I 3.3 1 E+OO u WD STJ 4339 1 8023 9/27/20 1 7 R u-1 06 2.8 1 E+OO 7.92E+OO 2.65E+O l u WD S T J 433918023 9/27/20 1 7 Sb-124 -2.1 7E+OO 2.2 1 E+OO 5.67E+OO u WD STJ 433918023 9/27/20 1 7 Sb-125 3.9 1 E+OO 2.72E+OO 9.38E+OO u WD STJ 433918023 9/2 7/20 1 7 Se-75 2.29E-O I l.24E+OO 4.27E+OO u WD STJ 433918023 9/27/20 1 7 Th-228 4.30E+OO 3.54E+OO 8.1 9E+OO u WD STJ 433918023 9/2 7/20 1 7 Z n-65 -l.1 2E+OO l.44E+OO 4.1 7E+OO u WD STJ 4339 1 8023 9/27/20 1 7 Zr-95 2.02E+OO l.84E+OO 6.32E+OO u WD STJ 4339 1 8024 9/27/20 1 7 1-1 3 1 -1.31 E-0 1 1.82E-0 1 6.08E-Ol u WD LTW 4339 1 8025 9/2 7/20 1 7 Ac-228 l.06E+OO 5.0 l E+OO 8.98E+OO u WD LTW 4339 1 8025 9/27/20 1 7 A g-1 08111 5.1 2 E-O I 7.54E-O l 2.5 7 E+OO u WD LTW 4339 1 8025 9/27/20 1 7 A g-1 1 0111 -5.44E-02 9.98E-O l 3.36E+OO u WD LTW 433918025 9/27/20 1 7 Ba-1 40 4.80E+OO 4.95E+OO l .68E+OI u WD LTW 433918025 9/27/20 1 7 Be-7 -l.1 4E+O l 8.34E+OO 2.37E+Ol u WD LTW 4339 1 8025 9/27/20 1 7 B E TA 1.89E+OO l.1 6E+OO 3.42E+OO u WD LTW 4339 1 8025 9/27/20 1 7 Ce-14 1 2.05E+OO l.74E+OO 5.25E+OO u WD LTW 4339 1 8025 9/27/20 1 7 Ce-144 -4.44 E+OO 6.47E+OO 2.00E+OI u WD LTW 4339 1 8025 9/2 7/20 1 7 Co-57 -l.13E+OO 8.54E-O I 2.49E+OO u WD LTW 4339 1 8025 9/27/20 1 7 Co-58 -l.07E+OO 7.62E-O l 2.1 l E+OO u WD LTW 4339 1 8025 9/27/20 1 7 Co-60 l.l O E+OO 8.28E-0 1 3.00E+OO u WD LTW 4339 1 8025 9/27/20 1 7 C r-51 2.5 IE+OO 8.65E+OO 2.96E+OI u WD LTW 4339 1 8025 9/27/20 1 7 Cs-1 34 2.08£+00 I.O I E+OO 3.40E+OO u WD LTW 4339 1 8025 9/27/20 1 7 Cs-1 3 7 -2.84E-0 1 7.80E-O I 2.4 1 E+OO u WD LTW 4339 1 8025 9/27/20 1 7 Fe-59 -1.33E+OO l.70E+OO 5.1 I E+OO u D-94 Donald C. Cook Nuclear Pl a nt Annual R a diologic a l Environmental Operating Report 2017 SAMPLE EN D CONC STD.DE V. MDC FLAGS TYPE STATION LSN D ATE NUC LID E (pCi/L) (pCi/L) (pCi/L) WD LTW 4339 1 8025 9/2 7/20 1 7 1-1 3 1 2.1 I E+OO l.65E+OO 5.65E+OO u WD LTW 433918025 9/27/20 1 7 K-40 3.79£-01 l.45E+O I 4.66E+O I u WD L TW 4339 1 8025 9/2 7/20 1 7 La-1 40 -7.0 2E-02 l.7 1 E+OO 5.47E+OO u WD LTW 433918025 9/27/20 1 7 Mn-54 9.58E-Ol 8.25E-O l 2.93E+OO u WD LTW 433918025 9/27/20 1 7 Nb-95 4.89E-O l l.07E+OO 3.SOE+OO u WD LTW 433918025 9/27/20 1 7 R u-1 03 -1.1 I E+OO l.08E+OO 3.23E+OO u WD LTW 433918025 9/27/20 1 7 R u-1 06 8.74E+OO 7.88E+OO 2.67E+O I u WD LTW 433918025 9/27/20 1 7 Sb-124 7.22E-0 1 1.92E+OO 6.47E+OO u WD LTW 433918025 9/27/20 1 7 Sb-125 1.52E+OO 2.40E+OO 8.1 7E+OO u WD LTW 433918025 9/27/20 1 7 Se-75 -2.83E-Ol 1.2 1 E+OO 4.09E+OO u WD LTW 433918025 9/27/20 17 T h-228 2.39E+OO 3.64E+OO 7.1 9E+OO u WD LTW 433918025 9/27/20 1 7 Z n-65 -3.64E-O l l.87E+OO 6.I OE+OO u WO LTW 4339 1 8025 9/27/20 1 7 Z r-95 7.1 3E-Ol 1.48E+OO 4.89E+OO u WO LTW 4339 1 8026 9/27/20 1 7 1-13 1 3.1 2E-OI I.09E-O I 3.2 1 E-O I u WO STJ 43657600 1 9/27/20 1 7 H-3 -9.23E+O I 3.13E+02 J.05E+03 u WO L TW 436576002 9/27/20 1 7 H-3 -8.80E+O I 3.07E+02 l.03E+03 u WO STJ 435246023 10/1 1/20 1 7 Ac-228 -4.20E+OO 5.98 E+OO l.84E+O I u WD STJ 435246023 10/1 1/20 1 7 Ag-1 08m -l.22E+OO I .1 2E+OO 2.85E+OO u WO STJ 435246023 1 0/11/20 1 7 Ag-I I Om l. l SE+OO l.57E+OO 5.64E+OO u WD STJ 435246023 I 0/11/20 1 7 Ba-1 40 -1.0SE+OI 9.29 E+OO 2.40E+O I u WD STJ 435246023 1 0/1 1/20 1 7 Be-7 -3.27E+OO l. l OE+O l 3.58E+O I u WD STJ 435246023 1 0/1 1/20 1 7 BETA 9.26E-OI 8.62E-O I 2.55E+OO u WD STJ 435246023 1 0/1 1/20 1 7 Ce-1 4 1 -2.48E+OO 2.40E+OO 7.1 8E+OO u WD STJ 435246023 1 0/11/20 1 7 Ce-1 44 -4.77E-Ol 7.44E+OO 2.43E+O I u W D S TJ 435246023 1 0/1 1/20 1 7 Co-57 -6.8 1 E-O l 9.68E-0 1 3.03E+O O u WD STJ 435246023 1 0/1 1/20 1 7 Co-58 6.38£-0 1 l.28E+OO 4.31E+OO u WD STJ 435246023 1 0/11/20 1 7 Co-60 l.7 9E-O l l.56E+OO 4.90E+OO u WD STJ 435246023 1 0/1 1/20 1 7 C r-5 1 -9.00E+OO 1.28E+O l 4.1 5E+O I u WD STJ 435246023 1 0/11/20 1 7 Cs-1 34 8.9 1 E-O l l.1 8E+OO 4.08E+OO u WD STJ 435246023 1 0/1 1/20 1 7 Cs-137 -2.52E+OO l.36E+OO 3.04E+OO u W O STJ 435246023 1 0/11/20 1 7 Fe-59 -6.09E-0 1 3.23E+OO l.06E+O I u WD STJ 435246023 10/11/20 17 1-1 31 3.56E-Ol 3.70E+OO l.26E+O I u WD STJ 435246023 1 0/1 1/2 0 1 7 K-40 -3.98E+O I 1.83 E+O I 3.76E+O I u WD STJ 435246023 1 0/11/20 1 7 La-1 40 6.75£-01 3.97E+OO 1.3 1 E+O I u WD STJ 435246023 1 0/11/20 1 7 Mn-54 9.29£-01 l.23E+OO 4.1 9E+OO u WD STJ 435246023 1 0/11/20 1 7 Nb-95 -2.3 4 E-O I I .44E+OO 4.54E+OO u WD STJ 435246023 1 0/11/20 1 7 Ru-1 03 -7.36E-0 1 l.45E+OO 4.60E+OO u WD STJ 435246023 I 0/11/20 17 R u-1 06 -4.0 6E-O I 9.62E+OO 3.1 2E+O I u WD STJ 435246023 I 0/11/20 17 Sb-124 4.74E+OO 3.72E+OO l.37E+O I u WD STJ 435246023 1 0/11/20 17 Sb-1 25 6.67E+OO 8.2 1 E+OO l.08E+O I u WD STJ 435246023 1 0/11/20 1 7 Se-75 -l.84E+OO l.8 1 E+OO 5.IOE+OO u WD STJ 435246023 1 0/1 1/20 1 7 Th-228 -2.27E+OO 2.90E+OO 7.75E+OO u WD STJ 435246023 1 0/1 1/20 1 7 Zn-65 8.9 1 E+OO 3.94E+OO 8.1 8E+OO U1 WD STJ 435246023 1 0/11/20 1 7 Zr-95 -J.1 7E+OO 2.22E+OO 6.59E+OO u WD STJ 435246024 1 0/1 1/20 1 7 1-1 3 1 3.35E-0 1 2.22 E-O I 7.00E-0 1 u WD LTW 435246025 1 0/11/2 0 1 7 Ac-228 -3.45E-O I 5.28 E+OO l.75E+O I u WD LTW 435246025 1 0/11/20 17 A g-1 08m -2.37£-03 9.39£-0 1 3.1 2E+OO u WD LTW 435246025 1 0/11/20 1 7 Ag-1 I Om l.68E+OO l.49 E+OO 5.37E+OO u WD LTW 435246025 1 0/11/20 1 7 Ba-1 40 -2.93E+O O 7.79E+OO 2.46E+O I u WD LTW 435246025 1 0/11/20 1 7 B e-7 6.77£-02 9.94E+OO 3.28E+O I u D-95 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.D EV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WD LTW 435246025 1 0/11/20 17 BETA 1.12 E+OO 9.5 1 E-0 1 2.83E+OO u WD LTW 435246025 1 0/1 1/20 1 7 Ce-1 4 1 8.59E+OO 4.53E+OO 7.1 l E+OO U I WD LTW 435246025 I 0/11/2017 Ce-1 44 1.29E+O l 7.97E+OO 2.57E+Ol u WD LTW 435246025 1 0/1 1/20 1 7 Co-57 8.55E-Ol 9.73E-O l 3.2 1 E+OO u WD LTW 435246025 10/11/2017 Co-58 -9.19E-O l l.18 E+OO 3.50E+OO u WD LTW 435246025 10/11/2017 Co-60 1.07E+OO 1.05E+OO 3.83E+OO u WD LTW 435246025 1 0/11/20 1 7 C r-51 1.1 7E+O l l.33E+O l 4.6 1 E+Ol u WD LTW 435246025 10/1 1/2017 Cs-1 34 7.27E-Ol l.29E+OO 4.28E+OO u WD LTW 435246025 10/11/2017 Cs-1 37 7.37E-Ol l.08E+OO 3.67E+OO u WD LTW 435246025 1 0/1 1/20 1 7 Fe-59 8.38E-Ol 2.28E+OO 7.86E+OO u WD LTW 435246025 10/11/20 1 7 1-13 1 -2.87E+OO 3.8 1 E+OO l.20 E+O l u WD LTW 435246025 1 0/11/20 1 7 K-40 -3.20E+O l l.80 E+Ol 4.85E+Ol u WD LTW 435246025 1 0/11/20 1 7 La-1 40 -3.64E-O l 2.46E+OO 7.73E+OO u WD LTW 435246025 1 0/1 1/20 1 7 Mn-54 4.5 1 E-01 l.14 E+OO 3.56E+OO u WD LTW 435246025 1 0/11/2017 Nb-95 6.57E-OI I .48E+OO 4.85E+OO u WD LTW 435246025 1 0/11/20 1 7 Ru-1 03 -9.lOE-0 1 l.38E+OO 4.2 7 E+OO u WD LTW 435246025 10/11/2017 Ru-1 06 9.72E+OO l.lO E+O l 3.72E+Ol u WD LTW 435246025 1 0/1 l/20 1 7 Sb-124 -3.46E+OO 3.6 1 E+OO 9.63E+OO u WD LTW 435246025 10/11/2017 Sb-1 25 -2.28E+OO 3.07E+OO 9.54E+OO u WD LTW 435246025 10/11/20 1 7 Se-75 2.82E+OO 1.74 E+OO 5.53E+OO u WD LTW 435246025 10/11/20 1 7 T h-228 -3.31E+OO 3.08E+OO 8.32E+OO u WD LTW 435246025 1 0/11/20 1 7 Z n-65 l.51E+OO 2.73E+OO 8.54 E+OO u WD LTW 435246025 1 0/1 1/20 1 7 Zr-95 3.87E-0 1 l.70 E+OO 5.57E+OO u WD LTW 435246026 1 0/1 1/20 1 7 1-1 3 1 4.23E-O l 2.87E-O l 9.1 7E-Ol u WD STJ 436477023 10/25/20 1 7 Ac-228 2.50E+OO 6.94E+OO 2.38E+OI u WD STJ 436477023 10/25/20 1 7 Ag-1 08m -1.04E+OO 1.3 I E+OO 3.97E+OO u WO ST J 436477023 1 0/25/20 1 7 Ag-I I Om -3.58E-O l l.71E+OO 5.57 E+OO u WD STJ 436477023 10/25/20 1 7 Ba-140 7.1 4E+OO 5.8 1 E+OO 2.04E+Ol u WO STJ 436477023 1 0/25/20 1 7 Be-7 -5.05E+OO l.08 E+O l 3.36E+OI u WD STJ 436477023 10/25/2017 BETA l.93 E+OO 9.80E-Ol 2.43E+OO u WD STJ 436477023 1 0/25/20 1 7 Ce-1 41 6.85E-0 1 3.46E+OO 6.0 I E+OO u WD STJ 436477023 1 0/25/2017 Ce-1 44 2.41E+OI 1.1 7E+Ol 2.1 7E+Ol UI WD STJ 436477023 1 0/25/20 1 7 Co-57 -6.04E-O I 9.69E-Ol 2.71 E+OO u WD STJ 436477023 1 0/25/20 1 7 Co-58 -1.82E-OI l .48E+OO 4.92E+OO u WO STJ 436477023 1 0/25/20 1 7 Co-60 -3.97E-O I l.78E+OO 5.6 1 E+OO u WD STJ 436477023 1 0/25/20 1 7 C r-5 1 l.57E+OO l.16 E+O l 3.93E+Ol u WD ST J 436477023 10/25/20 1 7 Cs-1 34 l.64 E+OO I.36E+OO 4.98E+OO u WD STJ 436477023 1 0/25/20 1 7 Cs-1 37 -7.4 1 E-O I l.7 3E+OO 5.28E+OO u WD STJ 436477023 1 0/25/20 1 7 Fe-59 1.56 E+OO 2.28 E+OO 7.5 1 E+OO u WD STJ 436477023 1 0/25/20 1 7 1-131 -2.17E+OO 2.1 3E+OO 6.34E+OO u WD STJ 436477023 1 0/25/20 1 7 K-40 5.59E+OO 2.25 E+O l 7.51E+Ol u WD STJ 436477023 1 0/25/20 1 7 La-140 -2.99E+OO 2.32E+OO 5.78E+OO u WD STJ 436477023 10/25/2017 Mn-54 4.38E-Ol l.24E+OO 4.32E+OO u WD STJ 436477023 1 0/25/20 1 7 Nb-95 5.61 E-0 1 1.47E+OO 5.1 I E+OO u WD STJ 436477023 1 0/25/20 1 7 Ru-1 03 l.08 E+OO l.55E+OO 5.25E+OO u WD STJ 436477023 1 0/25/2017 Ru-1 06 -9.43E+OO l.39E+O l 4.l OE+Ol u WO ST J 436477023 1 0/25/20 1 7 S b-1 24 2.87E+OO 3.52E+OO l.29 E+Ol u WO ST J 436477023 1 0/25/20 1 7 Sb-1 25 -2.28E+OO 3.4 1 E+OO 1.05E+Ol u WD STJ 436477023 10/25/20 1 7 Se-75 -1.62E-OI 1.30E+OO 4.37E+OO u WO STJ 436477023 1 0/25/20 1 7 Th-228 -3.1 IE+OO 2.6 1 E+OO 8.1 9E+OO u 0-96 Do n ald C. Cook Nuclear Plan t Annual Radiologi c al Environm e ntal Operating Report 2017 SAMPLE EN D CONC STD.D EV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WD STJ 436477023 1 0/25/2017 Z n-65 2.03E+OO 3.60E+OO l.16E+Ol u WD STJ 436477023 10/25/2017 Z r-95 3.48E+OO 2.68E+OO 9.65E+OO u WD STJ 436477024 1 0/25/20 1 7 1-131 -l.1 3E-0 1 2.53E-O I 8.52E-O l u WD LTW 4 36477025 1 0/25/20 17 Ac-228 -1.0 3E+Ol 7.67E+OO 2.03E+Ol u WD LTW 436477025 1 0/25/2017 Ag-1 08 m -1.96E+OO 1.44E+OO 4.1 6E+OO u WD LTW 4 36477025 1 0/25/20 1 7 Ag-l l O m 2.94E+OO 1.81E+OO 6.42E+OO u WD LTW 436477025 1 0/25/20 17 Ba-1 40 4.66E+OO 6.38E+OO 2.20E+O l u WO LTW 436477025 1 0/25/20 1 7 Be-7 3.29E-0 2 1.1 8E+O l 3.94E+Ol u WO LTW 436477025 10/25/20 17 BETA 2.55E+OO l.07E+OO 2.89E+OO u WO LTW 436477025 1 0/25/20 17 Ce-1 4 1 -1.04E+OO 2.92E+OO 9. l 3E+OO u WD LTW 436477025 10/25/20 1 7 C e-1 44 1.78E+Ol l.09E+O l 3.47E+O l u WD LTW 436477025 10/25/20 17 Co-57 l.5 9E-01 l.50E+OO 4.84E+OO u W D LTW 4 364 77025 1 0/25/20 1 7 Co-58 5.IO E-0 1 I.1 4E+OO 3.86E+OO u W D LTW 436477025 1 0/25/2017 Co-60 -6.84E-Ol 1.47E+OO 4.58 E+OO u WD LTW 436477025 10/25/20 17 C r-51 -3.5 1 E+OO l.1 9E+O l 3.98E+O l u WD LTW 4 36477025 10/25/20 17 Cs-134 4.09 E-02 1.38E+OO 4.47E+OO u W D LT W 436477025 10/25/2017 Cs-137 -2.85 E+OO 2.00E+OO 4.79E+OO u WD LTW 43 6477025 10/25/20 17 Fe-59 1.30E+OO 2.52E+OO 8.97E+OO u WD LTW 43 6477025 10/25/2017 1-131 1.8 1 E+OO 2.39E+OO 8.3 1 E+OO u WD L TW 436477025 10/25/2017 K-40 -2.17E+Ol 2.33E+O l 7.98E+O l u WD LTW 436477025 10/25/20 1 7 La-1 40 -2.34E+OO 2.37E+OO 6.40E+OO u WD LTW 436477025 10/25/20 1 7 Mn-54 -l .49E+OO l.44E+OO 3.97E+OO u WD LTW 436477025 I 0/25/2017 N b-95 -8.05E-O I 1.32 E+OO 3.94E+OO u WD LTW 43 6477025 10/25/20 1 7 Ru-10 3 l.1 8E-O l l.33E+OO 4.4 5 E+OO u WD LTW 436477025 1 0/25/20 17 R u-10 6 -5.84 E+OO 1.22 E+O l 3.80E+O l u WD LTW 436477025 I 0/25/20 1 7 Sb-1 24 -9.06 E-02 3.54E+OO l.1 6E+Ol u WD LTW 436477025 10/25/20 17 S b-125 3.39E+OO 4.1 8E+OO l.44E+OI u WD LTW 436477025 10/25/2017 Se-75 4.3 1 E-0 1 2.0 I E+OO 6.95E+OO u WD LTW 43 64 770 25 10/25/20 1 7 Th-228 2.17 E+OO 5.58 E+OO I .2 4 E+O l u WD LTW 436477025 10/25/20 1 7 Z n-65 6.44E-01 2.93E+OO l.OI E+O l u WD LTW 436477025 10/25/20 1 7 Z r-95 2.95E+OO l.95E+OO 7.08E+OO u WD LTW 436477026 10/25/20 1 7 1-13 1 2.09E-O I 2.65E-O I 8.34E-Ol u WD STJ 437 609023 11/8/20 1 7 Ac-228 -4.00E+OO 6.01 E+OO l.86E+O I u WD STJ 437609023 11/8/20 1 7 Ag-1 08 m 9.57E-OI l.17 E+OO 3.1 3E+OO u WD ST J 437609023 11/8/2017 A g-I !Om 8.19E-01 2.04E+OO 6.34E+OO u WD STJ 437609023 11/8/2017 Ba-1 40 -5.1 8E-01 6.13 E+OO l.87 E+OI u WD STJ 4 3 7 609023 11/8/20 1 7 Be-7 l.99E+O l 1.63E+O l 3.65E+Ol u WD STJ 4 37609023 11/8/2017 BETA l.74E+OO 7.68E-OI l.94E+OO u WD STJ 4 37609023 11/8/20 1 7 Ce-141 3.34E+OO 2.95E+OO 6.73E+OO u WD ST J 437 609023 11/8/2017 Ce-144 -4.05E+OO 7.04 E+OO 2.15 E+O l u WD STJ 437 609023 11/8/20 1 7 C o-57 2.77E-O I 8.56E-01 2.79E+OO u W D ST J 437 609023 11/8/20 1 7 Co-5 8 -8.4 5 E-01 l.26E+OO 3.86E+OO u WD STJ 4 3 7 609023 11/8/20 1 7 Co-60 1.9 1 E-02 I .49 E+O O 4.84E+O O u WD STJ 437609023 11/8/20 17 C r-5 1 4.27E+OO 1.04 E+O l 3.57 E+Ol u WD STJ 4 37609023 11/8/20 1 7 Cs-1 34 -1.17E+OO 1.77 E+OO 5.57 E+OO u W D STJ 437 609023 11/8/20 17 Cs-1 37 8.85 E-01 1.76 E+OO 5.81 E+OO u WD STJ 437609023 1 1/8/2017 Fe-59 3.55E+OO 3.57E+OO 1.25E+O l u WD STJ 437609023 1 1/8/2017 1-13 1 l .55E+OO 1.95£+00 6.78 E+OO u WD S TJ 437609023 11/8/2017 K-40 6.13 E+OI 1.6 1 E+O l 4.40 E+Ol U I WD ST J 437609023 11/8/2017 La-140 6.26 E-OI l.7 6E+OO 6.29E+OO u D-9 7 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operatin g Report 2 017 S AMPL E E ND CONC ST D.D E V. MD C FLAGS T YP E STA TIO N LS N DAT E NU CL lD E (pCi/L) (pCi/L) (pCi/L)

WD ST J 437609023 I 1/8/20 17 M n-54 J.05E-O I l.26E+OO 4.27E+OO u WD STJ 437609023 11/8/2 017 N b-95 J.78E+OO 2.1 2E+OO 6.49E+OO u WD STJ 437609023 1 1/8/2 0 17 R u-1 03 -2.36E+OO l.65E+OO 4.08E+OO u WD STJ 437609023 1 1/8/20 17 R u-1 06 -8.72E+OO 1.3 1 E+O I 3.85E+OI u WD STJ 437609023 1 1/8/20 1 7 Sb-1 24 J.67E+OO 3.90E+OO l.37 E+OI u WD STJ 437609023 11/8/20 1 7 S b-1 25 2.63E+OO 3.96E+OO 1.23E+OI u WO STJ 437609023 11/8/20 1 7 Se-75 1.02E+OO 1.47E+OO 5.1 2E+OO u WD ST J 437609023 1 1/8/20 1 7 Th-228 l.46E-O I 2.55E+OO 8.63E+OO u WO STJ 437609023 11/8/20 1 7 Z n-65 -1.47E+OO 2.06E+OO 5.76E+OO u WD ST J 437609023 11/8/20 1 7 Z r-95 -7.39£-0 1 2.57E+OO 8.47E+OO u WD ST J 437609024 11/8/20 1 7 1-1 3 1 3.1 6E-0 1 2.44E-0 1 7.45E-O l u WO LTW 437609025 1 1/8/20 1 7 Ac-228 -6.82E+OO 6.32E+OO l.7 8E+OI u WO LTW 437609025 11/8/20 1 7 Ag-1 08m -8.80E-OI l.09E+O O 3.1 6E+OO u WD LTW 437609025 1 1/8/2 0 1 7 Ag-ll Om l.38E+OO 2.1 4E+OO 7.25E+OO u WD LTW 437609025 11/8/20 1 7 Ba-1 40 -8.II E-0 1 6.20E+OO 2.06E+O I u WD LTW 437609025 11/8/20 1 7 Be-7 8.73E+OO l.1 2E+O I 3.96E+O I u WD LTW 437609025 11/8/20 1 7 BETA 1.1 4E+OO 7.85E-O I 2.20E+OO u WO LTW 437609025 1 1/8/20 1 7 Ce-1 4 1 l.03E+OO 2.5 1 E+OO 7.36E+OO u WD LTW 437609025 1 1/8/20 1 7 Ce-1 44 -3.25E+OO 8.94E+OO 2.74E+OI u WD LTW 437609025 I 1/8/20 1 7 Co-57 3.99£-02 l.08E+OO 3.4 1 E+OO u WD LTW 437609025 11/8/20 1 7 Co-58 -1.60£-02 l.20E+OO 3.88E+OO u WD LTW 437609025 11/8/20 1 7 Co-60 -I. l 6E-02 I .57E+OO 5.1 3E+OO u WD LTW 437609025 1 1/8/20 1 7 C r-5 1 -J.25E+O I l.36E+O I 4.0 9E+OI u WD LTW 437609025 11/8/20 1 7 Cs-1 34 2.24E+OO 1.43E+OO 5.09E+OO u WD LTW 437609025 11/8/20 1 7 Cs-1 37 -1.2 1 E+O O l.45E+OO 4.35E+OO u WD LTW 437609025 1 1/8/20 1 7 Fe-59 -3.93E+OO 3.38E+OO 9.5 1 E+OO u WD LTW 437609025 11/8/20 1 7 1-1 3 1 -3.39E+OO 2.52E+OO 6.95E+OO u WO LTW 437609025 1 1/8/20 17 K-40 -2.83E+O I 1.80E+OI 5.IO E+0 1 u WD LTW 437609025 11/8/20 1 7 La-1 40 -4.2 1 E+OO 3.40E+OO 8.80E+OO u WO LTW 437609025 11/8/20 1 7 Mn-54 -6.07E-O I 2.00E+OO 5.45E+OO u WD LTW 437609025 11/8/20 17 N b-95 -6.60E-O I l.36E+OO 4.1 8E+OO u WD LTW 437609025 11/8/20 17 R u-103 -J.54E+OO 1.40E+OO 4.20E+OO u WD LTW 437609025 11/8/20 1 7 R u-1 06 -9.46E+OO l.22E+O I 3.71 E+O I u WD LTW 437609025 1 1/8/20 1 7 Sb-1 24 8.99£-0 1 4.5 1 E+OO 1.5 4E+O I u WD LTW 437609025 11/8/20 1 7 Sb-125 2.93E+OO 3.65E+OO l.17 E+O I u WD LTW 437609025 1 1/8/20 17 Se-75 -2.09E+OO l.70E+OO 4.96E+OO u WD LTW 437609025 1 1/8/20 17 T h-228 6.7 1 E+OO 3.7 1 E+OO 9.52E+OO u WD LTW 437609025 11/8/20 1 7 Z n-65 -3.04E+OO 2.61E+OO 6.96E+OO u WD LTW 437609025 1 1/8/20 17 Z r-95 2.43E+OO 2.38E+OO 8.34E+OO u WD LTW 437609026 11/8/20 1 7 1-13 1 -7.22E-O I 2.09E-0 1 7.55E-OI u WD ST J 438632023 1 1/22/20 1 7 Ac-228 l.03E+OO 6.1 4E+OO 2.04E+O I u WO ST J 438632023 11/22/20 1 7 Ag-1 08m 8.17E-O I l.1 6E+OO 3.99E+OO u WD STJ 438632023 1 1/22/20 1 7 Ag-I I Om 1.72E-OI l.60E+OO 5.50E+OO u WD ST J 438632023 1 1/22/20 1 7 Ba-1 40 2.67E+OO 6.30E+OO 2.1 4E+OI u WO STJ 438632023 11/22/20 1 7 Be-7 l.6 1 E+O I I.I I E+O I 3.86E+OI u WD ST J 438632023 11/22/20 1 7 BETA 3.07E+OO I .1 6E+OO 3.1 2E+OO u WD ST J 438632023 1 1/22/20 1 7 Ce-1 4 1 -6.3 1 E+OO 2.84E+OO 6.84E+OO u WD STJ 438632023 1 1/22/20 1 7 Ce-1 44 -8.65£-01 8.69E+OO 2.8 1 E+O I u W D ST J 438632023 1 1/2 2/20 17 Co-57 6.1 4E-O I 1.24E+OO 3.8 1 E+OO u WD ST J 438632023 11/2 2/20 1 7 Co-58 1.0 7 E+OO l.34E+OO 4.54E+OO u D-98 Donald C. Cook Nuclear Plant Annual Radiologi c al Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L)

WD STJ 438632023 11/22/20 17 Co-60 l.44 E+OO 1.49E+OO 5.32E+OO u WD STJ 438632023 11/22/20 1 7 Cr-5 1 8.16E+OO l.25E+O I 4.34E+OI u WD STJ 438632023 11/22/2017 Cs-134 l.07 E+OO 1.12 E+OO 3.92E+OO u WD STJ 43863 2 023 1 1/22/2017 Cs-137 -l.73E+OO l.39E+OO 3.73E+OO u WD STJ 438632023 11/22/2017 Fe-59 4.07E+OO 3.02E+OO l.09E+Ol u WD STJ 438632023 11/22/2017 1-13 1 2.JOE+OO 2.58E+OO 8.99E+OO u WD STJ 438632023 11/22/2017 K-40 -2.92E+OI l.79 E+Ol 4.15E+OI u WD STJ 438632023 11/22/20 17 La-1 40 8.97E-Ol 2.22E+OO 7.62E+OO u WD STJ 438632023 11/22/2017 Mn-54 2.68E-Ol 1.36E+OO 4.40E+OO u WD STJ 438632023 11/22/2017 Nb-95 -4.89 E-02 1.13E+OO 3.6 0E+OO u WD STJ 438632023 11/22/20 1 7 Ru-103 -5.1 7E-Ol l.15E+OO 3.64E+OO u WD STJ 438632023 1 1/22/2017 Ru-1 06 5.29E+OO l.09 E+O I 3.50E+O l u WD STJ 438632023 11/22/20 1 7 Sb-124 -1.07E+OO 3.15E+OO 9.50E+OO u WD STJ 438632023 11/22/2017 Sb-125 -3.42E+OO 2.80E+OO 7.92E+OO u WD STJ 438632023 11/22/20 1 7 Se-75 6.53E-Ol l.57 E+OO 5.03E+OO u WO STJ 438632023 11/22/20 1 7 Th-228 6.56E-Ol 2.68E+OO 8.82E+OO u WO STJ 438632023 11/22/20 1 7 Zn-65 -2.33E+OO 2.61E+OO 7.56E+OO u WO STJ 438632023 I 1/22/20 1 7 Zr-95 3.26E-OI 2.21E+OO 7.18E+OO u WD STJ 438632024 I 1/22/20 1 7 1-131 -7.62 E-02 1.88 E-Ol 6.24E-O l u WD LTW 4 386320 25 I 1/22/20 1 7 Ac-228 -6.25E+OO 5.91E+OO 1.72E+O l u WD LTW 438632025 11/22/2017 Ag-108m 6.38E-03 9.71E-OI 3.26E+OO u WD LTW 438632025 I 1/22/20 1 7 Ag-I I Om 4.0 I E-0 2 l.39E+OO 4.74E+OO u WD LTW 438632025 11/22/20 1 7 Ba-140 -5.09 E+OO 5.51E+OO l.58E+Ol u WD LTW 438632025 11/22/20 1 7 Be-7 2.92E+OO l.0 3E+O l 3.50E+Ol u WD LTW 438632025 11/22/2017 BETA l.72E+OO 1.14 E+OO 3.41E+OO u WD LTW 438632025 11/22/2017 Ce-141 1.44E+OO 2.31E+OO 7.15E+OO u WD LTW 438632025 1 1/22/20 1 7 Ce-144 l.28E+OO 6.79E+OO 2.25E+O l u WO LTW 438632025 11/22/20 1 7 Co-57 2.26E+OO l.04E+OO 3.35E+OO u WD LTW 438632025 11/22/2017 Co-58 3.42E+OO l.36E+OO 4.68E+OO u WD LTW 438632025 11/22/2017 Co-60 1.42 E+OO 1.19 E+OO 4.43E+OO u WD LTW 438632025 11/22/20 1 7 Cr-51 7.80E-Ol l.OOE+OI 3.45E+Ol u WD LTW 438632025 11/22/2017 Cs-134 2.29E-OI 1.53 E+OO 3.55E+OO u WD LTW 438632025 1 1/22/20 1 7 Cs-1 37 -5.84E-Ol l.06E+OO 3.17 E+OO u WD LTW 438632025 11/22/20 1 7 Fe-59 -4.1 6E+OO 2.89E+OO 7.44E+OO u WD LTW 438632025 1 1/22/2017 1-1 3 1 l.76 E+OO 2.20 E+OO 7.76E+OO u WD LTW 438632025 11/22/2017 K-40 -3.1 2E+OI l.95 E+O I 5.42E+O l u WD LTW 438632025 I 1/22/2017 La-1 40 -2.45 E+OO 2.29E+OO 5.6 4E+OO u WD LTW 438632025 I 1/22/2017 Mn-54 -l.06 E+OO l.33E+OO 3.77E+OO u WD LTW 438632025 I 1/22/2017 Nb-95 -1.36E-OI l.2 0E+OO 3.80E+OO u WD LTW 438632025 1 1/22/20 1 7 Ru-1 03 -2.68E+OO l.47 E+OO 3.64E+OO u WD LTW 438632025 I 1/22/2017 R u-1 06 6.40E+OO 9.03E+OO 3.14 E+O I u WD LTW 438632025 1 1/22/2017 Sb-124 -3.84E+OO 3.60E+OO 9.04E+OO u WO LTW 438632025 I 1/22/2017 Sb-1 25 -2.22E+OO 3.43E+OO l.09E+O l u WD LTW 438632025 I 1/22/20 1 7 Se-75 -l.59E+OO 1.76E+OO 5.04E+OO u WD LTW 438632025 1 1/22/2017 Th-228 7.44E+OO 4.85E+OO 9.17 E+OO u WD LTW 438632025 11/22/2017 Zn-65 l.98 E+OO 3.25E+OO l.0 3E+O l u WD LTW 438632025 I 1/22/20 1 7 Zr-95 -5.74E-Ol 1.9 1 E+OO 5.86E+OO u WD LTW 438632026 1 1/22/2017 1-1 3 1 -9.09E-02 2.13E-Ol 7.09E-O l u WD STJ 439663023 12/6/20 1 7 Ac-228 3.76E+OO 7.2 1 E+OO l.0 9E+O I u WD STJ 439663023 12/6/2017 Ag-108m -8.78 E-O I 1.0l E+OO 3.14E+OO u 0-99 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operat i n g Report 2017 SAMPLE E ND CONC ST D.D EV. MDC FLAGS TYPE STATION LSN D ATE NUC LID E (pCi/L) (pCi/L) (pCi/L) WD STJ 439663023 1 2/6/20 1 7 Ag-I I O m -2.93E+OO l.64E+OO 3.56E+OO u WD STJ 439663023 1 2/6/20 1 7 Ba-1 40 4.38E-0 1 4.39E+OO 1.46E+O I u WD STJ 439663023 1 2/6/20 1 7 Be-7 -2.25E+OO 9.28E+OO 3.03E+O I u WD STJ 439663023 1 2/6/20 1 7 BETA 9.1 I E-0 1 7.37E-O I 2.1 2E+OO u WD STJ 439663023 1 2/6/20 1 7 Ce-1 4 1 -3.55E+OO 2.2 1 E+OO 5.73E+OO u WD STJ 439663023 1 2/6/20 1 7 Ce-1 44 -5.9 1 E+OO 6.83E+OO 2.07E+O I u WD STJ 439663023 1 2/6/20 1 7 Co-57 2.6 1 E+OO l.29E+OO 3.05E+OO u WD ST J 439663023 1 2/6/20 1 7 Co-58 7.34E-O I I .1 3E+OO 3.80E+OO u WD STJ 439663023 1 2/6/20 1 7 Co-60 -3.30E-O I l.24E+OO 3.42E+OO u WD STJ 439663023 1 2/6/20 1 7 C r-5 1 -1.1 4E+0 1 9.96E+OO 3.07E+O I u WD STJ 439663023 1 2/6/20 1 7 Cs-134 9.1 9E-OI l.04E+OO 3.60E+OO u WD STJ 439663023 1 2/6/20 1 7 Cs-137 l.67E+OO 2.1 9E+OO 3.23E+OO u WD ST J 439663023 1 2/6/20 1 7 Fe-59 5.4 0E+OO 2.95E+OO 8.52E+OO u WD STJ 439663023 1 2/6/20 1 7 1-13 1 l.33E+OO 1.54E+OO 5.38E+OO u WD STJ 439663023 1 2/6/20 17 K-40 4.47E+OO l.47E+O I 5.55E+01 u WD STJ 439663023 1 2/6/20 1 7 La-1 40 5.0IE-0 1 l.54E+OO 5.24E+OO u WD STJ 439663023 1 2/6/20 17 M n-54 4.27E-O I l.07E+OO 3.55E+OO u WD STJ 439663023 1 2/6/20 1 7 Nb-95 2.49E+OO l.37E+OO 2.7 1 E+OO u WD STJ 439663023 1 2/6/20 17 R u-1 03 -3.95E+OO l.76E+OO 3. I 5E+OO u WD STJ 439663023 1 2/6/20 17 R u-1 06 -l.72E+O I 1.IO E+O I 2.83E+O I u WD STJ 439663023 1 2/6/20 1 7 S b-1 24 l.85E+OO 2.29E+OO 8.30E+OO u WD STJ 439663023 1 2/6/20 17 S b-125 3.94E+OO 2.76E+OO 9.66E+OO u WD STJ 439663023 1 2/6/20 1 7 Se-75 I.1 7E+OO l.40E+OO 4.52E+OO u WD STJ 439663023 1 2/6/20 17 T h-228 -7.07E+OO 3.25E+OO 7.9 1 E+OO u WD STJ 439663023 1 2/6/20 1 7 Z n-65 2.35E+OO 2.42E+OO 8.65E+OO u WD ST J 439663023 1 2/6/20 1 7 Z r-95 -1.9 1 E+OO l.82E+OO 4.95E+OO u WD STJ 439663024 1 2/6/20 1 7 1-1 31 l.55E-O I 2.5 1 E-0 1 8.1 5E-01 u WD LTW 439663025 1 2/6/20 1 7 Ac-228 -7.04E+OO 8.75E+OO 2.49E+OI u WD LTW 439663025 1 2/6/20 1 7 Ag-1 08m 2.48E-O I l.25E+OO 4.30E+OO u WD LTW 439663025 1 2/6/20 1 7 Ag-ll Om -l.28E+OO 2.39E+OO 7.03E+OO u WD LTW 439663025 1 2/6/2 01 7 Ba-1 40 -5.26E+O O 6.76E+OO I.73E+OI u WD LTW 439663025 1 2/6/20 1 7 Be-7 8.84E+OO l.6 1 E+O l 5.60E+O I u WD LTW 439663025 1 2/6/20 1 7 BETA 2.1 6E+OO 1.1 7 E+OO 3.35E+OO u WD LTW 439663025 1 2/6/20 1 7 Ce-1 4 1 -3.1 7E+OO 2.5 1 E+OO 6.6 5 E+OO u WD LTW 439663025 1 2/6/20 1 7 Ce-144 -1.33E+O I 9.59E+OO 2.77E+O I u WD LTW 439663025 1 2/6/20 1 7 Co-57 3.07E-O l l.1 5E+OO 3.89E+OO u WD LTW 439663025 1 2/6/20 1 7 Co-58 6.9 1 E-O l l.48E+OO 5.07E+OO u WD LTW 439663025 1 2/6/20 1 7 Co-60 l.78E+OO l.8 1 E+OO 6.7 5 E+OO u WD LTW 439663025 1 2/6/20 1 7 C r-51 l.50E+O I l.46E+O I 4.82E+OI u WD LTW 439663025 1 2/6/20 1 7 Cs-134 -l.57E+OO 1.86E+OO 5.1 7E+OO u WD LTW 439663025 1 2/6/20 1 7 Cs-1 37 2.96E+OO l.78E+OO 6.3 1 E+OO u WD LTW 439663025 1 2/6/20 1 7 Fe-59 -l.74E+OO 3.1 2E+OO 9.58E+OO u WD LTW 439663025 1 2/6/20 1 7 1-13 1 l.98E-O I 2.45E+OO 8.4 6E+OO u WD LTW 439663025 1 2/6/20 17 K-40 -2.93E+O I 2.59E+O I 8.37E+O I u WD LTW 439663025 1 2/6/20 1 7 La-140 2.69E+OO 3.25E+OO 1.1 7E+OI u WD LTW 439663025 1 2/6/20 17 M n-54 -5.65E-O I l.96E+OO 6.09E+OO u WD LTW 439663025 1 2/6/20 1 7 Nb-95 -4.1 7E-OI 1.58E+OO 4.94E+OO u WD LTW 439663025 1 2/6/20 17 R u-1 03 4.0 I E-0 1 i.77E+O O 6.0 5E+OO u WD LTW 439663025 1 2/6/20 17 R u-1 06 5.45E+OO l.3 9E+O l 4.76E+O I u WD LTW 439663025 1 2/6/20 1 7 Sb-1 24 2.70E+OO 3.97E+OO l.45E+O I u D-100 Do n a ld C. Cook Nucl e ar Plan t Annual Radiological Environmental Operating Report 2017 SAMPLE EN D C O NC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCL ID E (pCi/L) (pCi/L) (pCi/L)

WO LTW 439663025 1 2/6/20 1 7 S b-1 25 7.78E+OO 4.22E+OO 1.S I E+O I u WO LTW 439663025 1 2/6/20 1 7 Se-75 I.SSE+OO 2.04E+OO 6.73E+OO u WD LTW 439663025 1 2/6/20 1 7 Th-228 6.67E+OO 5.68E+OO l.1 8E+O l u WD LTW 439663025 1 2/6/20 1 7 Zn-65 -1.11 E+OI 4.76E+OO 7.92E+OO u WD LTW 439663025 1 2/6/20 1 7 Zr-95 -1.SSE+OO 2.97E+OO 8.92E+OO u WD LTW 439663026 1 2/6/20 1 7 1-131 5.0 I E-0 1 2.72E-0 1 7.45E-O I u WD STJ 440693023 12/20/20 1 7 Ac-228 3.6 1 E+OO 2.68E+OO 8.31E+OO u WD STJ 440693023 1 2/20/20 1 7 Ag-108111 9. l 7E-02 4.76E-OI J.6 1 E+OO u WO STJ 440693023 1 2/20/20 1 7 Ag-1 1 0111 l.26E+OO 8.1 6E-O I 2.79E+OO u WD STJ 440693023 12/20/20 1 7 Ba-140 -4.1 I E+OO 4.1 3E+OO l.27E+O I u WD STJ 440693023 1 2/20/20 1 7 Be-7 -2.24E+Ol 9.84E+OO l.68E+O I u WD STJ 440693023 1 2/20/2 0 1 7 BETA 1.8 0 E+OO 9.29E-O I 2.54E+OO u WD STJ 440693023 1 2/20/20 1 7 Ce-1 4 1 -1.S OE+OO 1.1 8E+OO 3.57E+OO u WD STJ 440693023 1 2/20/20 1 7 Ce-1 44 -8.0 S E-0 1 3.54E+OO 1.1 SE+O I u WD STJ 440693023 1 2/20/20 1 7 Co-57 -7.SSE-02 4.6 1 E-0 1 1.S I E+OO u WD STJ 440693023 12/20/20 1 7 Co-58 -7.62E-02 6.24E-0 1 1.9 7E+OO u WD STJ 440693023 1 2/20/20 1 7 Co-60 -8.78E-Ol 7.86E-O I 2.22E+OO u WD STJ 440693023 12/20/20 1 7 Cr-5 1 -6.89E+OO 6.SIE+OO l.86E+O I u WD STJ 440693023 12/20/20 1 7 Cs-1 34 l.79E+OO 7.74E-O l 2.24E+OO u WD STJ 440693023 12/20/20 1 7 Cs-1 37 -2.1 4E-Ol 6.0IE-0 1 1.91E+OO u WD STJ 440693023 12/20/20 1 7 Fe-59 5.34E-O I l.24E+OO 4.22E+OO u WO STJ 440693023 12/20/20 1 7 1-1 31 -3.00E-0 1 1.71 E+OO 5.77E+OO u WD STJ 440693023 1 2/20/20 1 7 K-40 7.23E+OO I.I SE+O I 2.20E+O l u WD STJ 440693023 1 2/20/20 1 7 La-1 40 -J.08E+OO l.63E+OO 4.1 6E+OO u WD STJ 440693023 12/20/20 17 M n-54 -9.43E-O l 6.56E-O I l.79E+OO u WD STJ 440693023 1 2/20/20 1 7 Nb-95 -8.73E-Ol 6.60E-O I l.85E+OO u WD STJ 440693023 1 2/20/20 1 7 R u-I 03 4.80E-O I 6.59 E-O l 2.02E+OO u WD STJ 440693023 12/20/20 1 7 R u-1 06 l.SOE+OO 5.I SE+OO J.70E+O I u WD STJ 440693023 1 2/20/20 1 7 Sb-1 24 5.63E-OI 3.1 3E+OO 4.88E+OO u WD STJ 440693023 12/20/20 1 7 Sb-1 25 -4.77E-Ol 1.47E+OO 4.88E+OO u WD STJ 440693023 1 2/20/20 1 7 Se-75 I .54E-O I 8.IOE-0 1 2.SSE+OO u WO STJ 440693023 12/20/20 1 7 Th-228 7.34E-OI l.75E+OO 4.25E+OO u WD STJ 440693023 12/2 0/20 1 7 Zn-65 -2.3 1 E+OO l.38E+OO 3.77E+OO u WD STJ 440693023 12/20/20 1 7 Zr-95 -2.77E-02 I. I SE+OO 3.68E+OO u WD STJ 440693024 1 2/20/20 1 7 1-1 31 3.20E-O I 2.65E-O I 8.47E-O I u WD LTW 440693025 1 2/20/20 1 7 Ac-228 -3.36E+OO 7.57E+OO 2.02E+O I u WO LTW 440693025 1 2/20/20 1 7 Ag-1 08 111 J.24E-OI I .1 3E+OO 3.7 1 E+OO u WO LTW 440693025 1 2/20/20 1 7 Ag-1 1 0 111 -1.72E+OO 2.1 7E+OO 6.36E+OO u WD LTW 440693025 1 2/20/20 1 7 Ba-1 40 -1.30E+O I l.36E+O I 3.20E+O I u WD LTW 440693025 12/20/20 1 7 Be-7 8.27E-02 l.26E+O l 4.1 I E+O I u WD LTW 440693025 1 2/20/20 17 B ETA 1.S I E+OO 9.40£-0 1 2.65E+OO u WO LTW 440693025 1 2/20/20 1 7 Ce-1 4 1 2.37E+OO 2.34E+OO 7.76E+OO u WD LTW 440 693025 1 2/20/20 1 7 Ce-1 44 -5.32E+OO 8.30E+OO 2.45E+O I u WD LTW 440693025 1 2/20/20 1 7 Co-57 -2.8 1 E-O I J.1 7E+OO 3.35E+OO u WO LTW 440693025 1 2/20/20 1 7 Co-58 -I .42E-01 1.44E+OO 4.58E+OO u WD LTW 440693025 1 2/20/20 1 7 Co-60 9.28£-01 I .43E+OO 4.58E+OO u WO LTW 440693025 1 2/20/20 1 7 Cr-5 1 -2.06E+OI l.4 7E+O I 4.1 8E+O I u WD L TW 440693025 1 2/20/2 0 1 7 Cs-1 34 3.62£-01 I .46E+OO 4.80E+OO u WO LTW 440693025 1 2/20/20 1 7 Cs-1 37 -l.45E-OI l.66E+OO 4.62E+OO u WD LTW 440693025 1 2/20/20 1 7 Fe-59 7.76E-OI 2.95E+OO l.02E+O I u D-101 Donald C. Cook Nuclear Plant Annual Radiological Envi r onmental Operating Report 2 017 S A MPLE E ND CONC ST D.D E V. MDC F LA GS TYPE STATIO N LSN DATE NUCL ID E (pCi/L) (pCi/L) (pCi/L) WD LTW 440693025 1 2/20/20 1 7 1-1 3 1 3.0 8E+OO 3.8 1 E+OO 1.28E+O I u WD LTW 440693025 1 2/2 0/20 1 7 K-40 l.05 E+02 2.4 7 E+O I 3.63E+O I U I WD LTW 440693025 1 2/2 0/20 1 7 La-1 40 -4.48E+OO 2.65E+OO 5.3 1 E+OO u WD LTW 440693025 1 2/20/20 1 7 M n-54 -7.62E-O I l.38E+OO 4.1 6E+OO u WD LTW 440693025 1 2/20/20 1 7 Nb-95 -I.02E-02 l.60E+OO 5.1 6E+OO u WD LTW 440693025 1 2/20/20 1 7 R u-I 03 -1.1 8E+OO 1.75E+OO 5.39E+OO u WD LTW 440693025 I 2/20/20 17 R u-I 06 6.27E+OO I.26E+O I 4.2 1 E+O I u WD LTW 440693025 1 2/20/20 17 S b-1 24 8.68E-0 1 3.82E+OO l.3 1 E+O I u WD LTW 440693025 1 2/20/20 1 7 Sb-1 25 -2.77E+OO 3.7 1 E+OO 1.1 4E+O I u WD LTW 440693025 1 2/20/20 1 7 Se-75 2.82E-0 1 l.80E+OO 5.75E+OO u WD LTW 440693025 1 2/20/20 17 T h-228 -4.44E+OO 3.00E+OO 8.67E+OO u WD LTW 440693025 1 2/20/20 1 7 Z n-65 -4.36E+OO 2.99E+OO 8.00E+OO u WD LTW 440693025 1 2/20/20 1 7 Z r-95 3.49E-0 1 2.7 1 E+OO 8.84E+OO u WD LTW 440693026 1 2/20/20 1 7 1-1 3 1 2.89E-O I 2.37E-0 1 7.5 5 E-O I u WD STJ 44 1 6 7 1 001 1 2/20/20 1 7 H-3 -6.32E+02 4.28E+02 1.5 1 E+03 u WD LTW 44 1 67 1 002 1 2/20/20 1 7 H-3 -4.9 1 E+02 4.46E+02 l.55E+03 u D-10 2 Do n ald C. Cook Nuclear Plant Annual Radiological Envi r onmental Operating Report 2017 SAMPLE END CONC STD.DEV. M DC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WG W-7 413786001 1/3/20 1 7 Ac-228 -5.0 I E+OO 5.13 E+OO l.26 E+OI u WG W-7 4 1 378600 1 1/3/20 1 7 Ag-1 08m l.09 E+OO 7.26E-OI 2.48E+OO u WG W-7 41378600 1 1/3/20 1 7 Ag-I I O m -l.43 E+OO 1.3 I E+OO 3.63E+OO u WG W-7 41378600 1 1/3/20 17 Ba-1 40 -l.43 E+OO 4.49E+OO I .45E+OI u WG W-7 4 1 378600 1 1/3/20 1 7 Be-7 7.83E-O I 6.72E+OO 2.26E+O I u WG W-7 4 1 378600 1 1/3/20 1 7 Ce-1 4 1 3.76E+OO 2.23E+OO 4.69E+OO u WG W-7 413786001 1/3/20 1 7 Ce-1 44 l.90E+OO 5.69E+O O l.87E+OI u WG W-7 413786001 1/3/20 17 Co-57 -I.60 E-01 6.83E-0 1 2.22E+OO u WG W-7 413786001 1/3/20 1 7 Co-58 -1.2 1 E+OO 1.1 I E+OO 2.68E+OO u WG W-7 41378600 1 1/3/20 1 7 Co-60 -7.89E-01 l.14 E+O O 2.96E+OO u WG W-7 41378600 1 1/3/20 1 7 C r-51 -7.3 1 E+OO 8.47E+OO 2.74E+O I u WG W-7 4 1 37860 01 1/3/20 1 7 Cs-134 6.44E-O I 8.95E-O l 3.00E+OO u WG W-7 413786001 1/3/20 17 Cs-1 37 6.92E-OI 8.54E-O I 2.89E+OO u WG W-7 41378600 1 1/3/20 1 7 Fe-59 -l.08E+OO l.70 E+O O 5.3 1 E+OO u WG W-7 41378600 1 1/3/20 1 7 H-3 2.36E+02 4.99E+02 l.60E+03 u WG W-7 4 1 378600 1 1/3/20 1 7 1-1 3 1 5.95E-O I l.67 E+OO 5.74E+OO u WG W-7 4 1 378600 1 1/3/20 1 7 K-40 -2.0 1 E+O I 1.l8 E+OI 2.9 1 E+O I u WG W-7 4 1 378600 1 1/3/20 1 7 La-1 40 3.66 E-OI I.SOE+OO 4.45E+OO u WG W-7 4 1 378600 1 1/3/20 1 7 Mn-54 2.I O E-01 9.40E-OI 3.05E+OO u WG W-7 41378600 1 1/3/20 1 7 Nb-95 l.8 1 E-OI 9.45E-OI 3.08E+OO u WG W-7 413786001 1/3/20 1 7 Ru-1 03 -5.75E-Ol 8.26E-O I 2.59E+OO u WG W-7 41378600 1 1/3/2017 Ru-1 06 -8.2 1 E-Ol 7.00E+OO 2.27E+O I u WG W-7 4 1 3786001 1/3/2017 Sb-1 24 4.03E+OO 3.58E+OO 8.90E+OO u WG W-7 4 1 378600 1 1/3/2017 S b-1 25 3.07E+OO 2.24E+OO 7.68E+OO u WG W-7 41378600 1 1/3/20 1 7 Se-75 -6.48E-0 1 l.23E+OO 3.7 1 E+OO u WG W-7 41378600 1 1/3/20 1 7 Th-228 -4.1 2E+OO 2:45£+00 5.68 E+OO u WG W-7 41378600 1 1/3/20 1 7 Z n-65 3.30E+OO l.82E+OO 5.46E+OO u WG W-7 41378600 1 1/3/20 1 7 Z r-95 3.54E+OO l.73E+OO 5.72E+OO u WG W-8 4 1 3786002 1/3/20 1 7 Ac-228 l.73E+OI 6.42E+OO l.41 E+OI Ul WG W-8 413786002 1/3/20 17 Ag-1 08m 2.28E-01 7.I OE-01 2.41 E+OO u WG W-8 413786002 1/3/2017 Ag-I I Om 7.52E-OI l.1 5E+OO 3.98E+OO u WG W-8 413786002 1/3/2017 Ba-1 40 2.40E+OO 4.81E+OO l.61 E+OI u WG W-8 413786002 1/3/20 1 7 Be-7 -4.67E+OO 7.16E+OO 2.26E+O I u WG W-8 413786002 1/3/20 1 7 Ce-1 4 1 -2.2 5 E+OO l.62E+O O 4.1 L E+OO u WG W-8 413786002 1/3/20 1 7 Ce-144 -6.1 4£+00 4.52E+OO l.36 E+OI u WG W-8 413786002 1/3/2017 Co-57 1.2 1 E+OO 8.84E-O I l.83E+OO u WG W-8 413786002 1/3/20 1 7 Co-58 4.3 1 E-02 7.84E-O I 2.67E+OO u WG W-8 4 1 3786002 1/3/2 017 Co-60 I.87 E+OO 1.30£+00 3.39E+OO u WG W-8 413786002 1/3/20 1 7 C r-5 1 -2.46E+OO 7.57E+OO 2.56E+O I u WG W-8 413786002 1/3/20 1 7 Cs-134 -2.2 0 E+OO 1.14 E+OO 3.0IE+OO u WG W-8 413786002 1/3/20 17 Cs-137 -1.17£-02 8.57 E-O I 2.75E+OO u WG W-8 4 1 3786002 1/3/20 17 Fe-59 -8.39E-Ol l.90E+OO 6.02E+OO u WG W-8 4 1 3786002 1/3/20 17 H-3 9.55E+OI 4.80E+02 1.56E+03 u WG W-8 4 1 3786002 1/3/20 17 1-1 3 1 7.2 4E-OI l.64E+OO 5.65E+OO u WG W-8 4 1 3786 002 1/3/20 1 7 K-40 3.83 E+OI 1.1 I E+O I 2.47E+O I WG W-8 413786002 1/3/20 1 7 La-140 -6.37E-01 l.54 E+OO 4.94E+OO u WG W-8 4 1 3786002 1/3/20 1 7 Mn-54 -2.1 6E+OO l.14 E+O O 2.44E+OO u WG W-8 4 1 3786002 1/3/20 1 7 N b-95 -2.25 E+OO I.22E+OO 2.45E+OO u WG W-8 4 1 3786002 1/3/20 17 Ru-1 03 2.02E+OO l.21 E+OO 3.35E+OO u WG W-8 413786002 1/3/20 1 7 Ru-1 06 -1.02 E+O I 8.83E+OO 2.18E+O I u D-103 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE E ND CONC STD.DEV. MDC FLAGS TYPE STATION LSN DAT E NUCLIDE (pCi/L) (pC i/L) (pCi/L) WG W-8 4 1 3786002 1/3/2017 S b-1 24 -4.7 1 E+OO 2.48E+OO 5.6 7E+OO u WG W-8 413786002 1/3/20 1 7 Sb-1 25 l.55 E+OO 2.25E+OO 7.69 E+OO u WG W-8 4 1 3786002 1/3/20 1 7 Se-7 5 -2.02 E-OI l.07E+OO 3.35E+OO u WG W-8 4 1 3786002 1/3/2017 T h-228 -1.49 E+OO 2.00E+OO 5.28E+OO u WG W-8 4 1 3786002 1/3/2017 Z n-65 -2.99E+OO l.7 9E+OO 4.52E+OO u WG W-8 413786002 1/3/2017 Z r-95 -4.84E-OI l.63E+OO 4.42 E+OO u WG W-13 413786003 1/3/20 1 7 Ac-228 -2.66E+OO 4.17 E+OO l.09E+OI u WG W-13 413786003 1/3/20 1 7 Ag-1 08m 5.44E-01 6.46E-OI 2.1 8E+OO u WG W-1 3 413786003 1/3/20 1 7 Ag-I I Om -1.69E+OO 1.1 I E+OO 2.85E+OO u WG W-1 3 4 1 3786003 1/3/2017 Ba-1 40 -1.81 E+OO 3.9 1 E+OO l.2 4E+OI u WG W-13 413786003 1/3/2017 Be-7 l.53E+OO 6.46E+OO 2.15 E+OI u WG W-13 4 1 3786003 1/3/2017 Ce-1 41 -4.40E+OO l.94E+OO 4.0 3E+OO u WG W-13 413786003 1/3/2017 Ce-1 44 -1.79 E+OO 4.90E+OO l.54 E+0 1 u WG W-13 4 1 3 7 86003 1/3/2017 Co-57 I .42E-01 6.32E-0 1 2.04E+OO u WG W-13 4 1 3786003 1/3/2017 Co-58 1.24E+OO 7.46E-0 1 2.57 E+OO u WG W-13 413786003 1/3/2017 Co-60 8.09E-0 1 7.82E-0 1 2.68 E+OO u WG W-13 4 1 3786003 1/3/2017 C r-51 -5.72E+OO 7.06E+OO 2.2 7E+O I u WG W-1 3 413786003 1/3/2017 Cs-1 34 I .06E-OI 8.8 1 E-0 1 2.81E+OO u WG W-13 4 1 3786003 1/3/20 1 7 Cs-13 7 -2.25E-OI 8.03E-OI 2.53E+OO u WG W-13 413786003 1/3/20 1 7 Fe-59 -4.05E-O I l.39E+OO 4.52 E+OO u WG W-13 413786003 1/3/20 1 7 H-3 3.35E+02 5.1 8E+02 1.64E+03 u WG W-1 3 413786003 1/3/20 1 7 1-1 3 1 -1.5 1 E-01 l.41 E+O O 4.70E+OO u WG W-1 3 4 1 3786003 1/3/20 1 7 K-40 -2.06E+01 l.25E+O I 3.45E+O I u WG W-13 4 1 3786003 1/3/2017 La-1 40 -3.65 E-OI l.5 4E+OO 4.1 9E+OO u WG W-13 413786003 1/3/20 1 7 Mn-54 -2.51E-04 7.35E-O I 2.49E+OO u WG W-13 4 1 3 7 86003 1/3/20 1 7 Nb-95 -4.59E-OI 7.7 1 E-01 2.33E+OO u WG W-1 3 413786003 1/3/2017 Ru-I 03 -1.02E+OO 8.56E-O I 2.53E+OO u WG W-1 3 413786003 1/3/2017 Ru-1 06 -4.1 4E+OO 6.88E+OO 2.1 2E+O I u WG W-13 413786003 1/3/20 1 7 Sb-1 24 l.55E+OO l.76 E+OO 6.03 E+OO u WG W-13 413786003 1/3/2017 Sb-1 25 -1.99E+OO 2.1 5E+OO 6.69E+OO u WG W-13 4 1 3786003 1/3/20 1 7 Se-75 -5.96 E-OI l.03E+OO 3.4 1 E+OO u WG W-13 413786003 1/3/20 1 7 T h-228 4.81E+OO 2.5 1 E+OO 5.47 E+OO u WG W-1 3 413786003 1/3/2017 Z n-65 -2.1 9E+OO l.89E+OO 4.70 E+OO u WG W-13 4 1 3786003 1/3/2017 Zr-95 2.47E+OO l.37E+OO 3.90E+OO u WG W-1 4 413786004 1/3/2017 Ac-228 8.58 E+OO 5.63E+OO 1.1 3E+O I u WG W-1 4 413786004 1/3/20 17 A g-1 08111 -3.05E-O I 6.57E-OI 2.1 I E+OO u WG W-1 4 413786004 1/3/20 17 A g-I 1 0111 3.97E-01 9.28E-01 3.22E+OO u WG W-14 413786004 1/3/20 1 7 Ba-1 40 6.41E+OO 4.7 1 E+OO l.58 E+O I u WG W-1 4 413786004 1/3/2017 B e-7 -4.33E+OO 6.56E+OO 2.06 E+O I u WG W-14 413786004 1/3/20 1 7 Ce-1 4 1 6.08E-OI l.59E+OO 5.1 4 E+OO u WG W-1 4 413786004 1/3/2017 Ce-144 -6.0IE+OO 5.92E+OO l.79E+O I u WG W-1 4 413786004 1/3/2017 Co-57 -9.49E-O I 7.59E-O I 2.25E+OO u WG W-14 413786004 1/3/2017 Co-58 l.28E-O I 7.2 1 E-01 2.48E+OO u WG W-14 4 1 3786004 1/3/2017 Co-60 6.94E-02 7.73 E-O I 2.55 E+OO u WG W-14 4 1 3786004 1/3/2017 Cr-5 1 -1.1 6E+OO 8.00E+OO 2.69E+OI u WG W-1 4 413786004 1/3/20 1 7 Cs-1 34 3.04E-OI 8.02 E-01 2.61 E+OO u WG W-1 4 413786004 1/3/2017 Cs-1 37 -I .67E+OO l.07E+OO 2.44E+OO u WG W-14 4 1 3786004 1/3/2017 Fe-59 4.81E-Ol l.65E+OO 5.59 E+OO u WG W-14 4 1 3786004 1/3/2017 H-3 2.27E+02 5.09E+02 I .63E+03 u WG W-14 4 1 3786004 1/3/2017 1-1 3 1 l.70E+OO l.72 E+OO 5.84E+OO u D-104 Do n ald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WG W-14 413786004 1/3/20 1 7 K-40 2.63E+Ol 1.47E+O I 2.99E+O l u WG W-14 413786004 1/3/2017 La-140 -5.07E-01 1.46E+OO 4.50E+OO u WG W-14 413786004 1/3/2017 Mn-54 9.08 E-02 6.33E-0 1 2.1 7E+OO u WG W-14 413786004 1/3/2017 Nb-95 5.17 E-01 1.03 E+OO 2.88E+OO u WG W-14 413786004 1/3/20 1 7 Ru-1 03 I.07 E-O I 8.50E-01 2.81E+OO u WG W-14 4 1 3786004 1/3/20 1 7 Ru-106 5.00E+OO 7.31 E+OO 2.43E+OI u WG W-14 413786004 1/3/20 1 7 Sb-124 I.76 E+OO l.86E+OO 6.45E+OO u WG W-1 4 413786004 1/3/2 017 Sb-1 25 -9.62E-OI 1.77 E+OO 5.65E+OO u WG W-14 4 1 3786004 1/3/2 017 Se-75 -8.21E-01 I.08 E+OO 3.53E+OO u WG W-14 413786004 1/3/20 17 Th-228 3.IOE+OO 2.79E+OO 5.73E+OO u WG W-14 413786004 1/3/2017 Zn-65 -3.28E+OO 1.9 4E+OO 4.02E+OO u WG W-14 413786004 1/3/20 1 7 Zr-95 l.05E+OO l.52E+OO 5.03E+OO u WG W-4 41416200 1 l/9/20 1 7 Ac-228 -4.85 E+OO 2.93 E+OO 5.14 E+OO u WG W-4 414162001 1/9/2017 Ag-1 08m 3.16E-OI 3.22E-01 l.09E+OO u WG W-4 414162001 1/9/20 17 Ag-I I Om -1. IO E-01 5.68E-O I 1.82E+OO u WG W-4 414162001 1/9/2017 Ba-14 0 4.52E+OO 2.2 1 E+OO 6.97E+OO u WG W-4 41416200 1 1/9/2017 Be-7 l.37E+OO 3.51 E+OO 1.08E+OI u WG W-4 4 1 4162001 1/9/20 17 Ce-14 1 -2.1 5E+OO 1.30 E+OO 2.33E+OO u WG W-4 414162001 1/9/2017 Ce-144 2.1 I E+OO 2.56E+OO 8.26E+OO u WG W-4 4 1 416200 1 1/9/20 17 Co-57 -4.68E-02 3.49E-01 l.13E+OO u WG W-4 4 1 4162001 1/9/2017 Co-58 I.68 E-O I 3.95£-0 1 l.31E+OO u WG W-4 4 1 4162001 1/9/2017 Co-60 -6.24E-01 5.57 E-OI l.28 E+OO u WG W-4 4 1 416200 1 1/9/2017 C r-5 1 -3.43E+OO 3.64E+OO I.19 E+O I u WG W-4 41416200 1 1/9/20 1 7 Cs-1 34 -3.05E-02

4. lOE-0 1 l.33E+OO u WG W-4 4 1 416200 1 1/9/20 17 Cs-1 37 -6.5 1 E-01 4.26E-O I l.23E+O O u WG W-4 414162001 1/9/20 1 7 Fe-59 -7.96E-01 8.20 E-01 2.40E+OO u WG W-4 4 1 4162001 1/9/20 17 H-3 l.06E+03 4.69 E+02 l.35E+03 u WG W-4 414162001 1/9/2017 1-131 -3.74E-01 6.99E-0 1 2.34E+OO u WG W-4 414162001 1/9/20 17 K-40 4.88E+OO 9.45E+OO l.22E+OI u WG W-4 414162001 1/9/20 17 La-1 40 -7.98E-OI 7.07E-O I 2.13 E+OO u WG W-4 414162001 1/9/2017 Mn-54 1.60E-OI 3.51E-OI I.16E+OO u WG W-4 41416200 1 1/9/2017 Nb-95 I.02 E-OI 4.23E-OI 1.25E+OO u WG W-4 41416200 1 1/9/2017 Ru-103 3.53£-01 4.56E-01 l.40E+OO u WG W-4 4 1 4162001 1/9/2017 R u-1 06 3.94E+OO 3.52E+OO I.17E+O I u WG W-4 41416200 1 1/9/2017 Sb-1 24 1.13 E+OO 9.63E-0 1 3.30E+OO u WG W-4 41416200 1 1/9/2017 Sb-1 25 -l.32E-01 1.0I E+OO 3.40E+OO u WG W-4 414162001 1/9/20 1 7 Se-75 l.34E+OO 6.1 8E-0 1 1.74E+OO u WG W-4 414162001 1/9/2017 Th-228 l.33E+OO I.40 E+OO 2.31E+OO u WG W-4 41416200 1 1/9/2017 Zn-65 7.98£-01 8.81E-O I 2.75E+OO u WG W-4 41416200 1 1/9/20 17 Zr-95 I.94E-O I 6.28E-0 1 2.08 E+OO u WG W-5 414162002 1/9/20 17 Ac-228 -2.06E+OO 3.62E+OO 6.62E+OO u WG W-5 414162002 1/9/2017 Ag-1 08m -5.98E-OI 4.IOE-01 1.24E+OO u WG W-5 414162002 1/9/20 17 Ag-I I Om 9.3 1 E-01 6.37E-OI 2.06E+OO u WG W-5 4 1 4162002 1/9/20 1 7 Ba-1 40 4.26E+OO 5.0I E+OO 7.84E+OO u WG W-5 414162002 1/9/2017 Be-7 5.15E+OO 4.04 E+OO l.34E+O I u WG W-5 414162002 1/9/2017 Ce-1 4 1 -3.55E+OO 1.2 1 E+OO 2.63E+OO u WG W-5 414162002 1/9/20 1 7 Ce-144 2.70E+OO 3.20E+OO 1.03E+O I u WG W-5 414162002 1/9/20 1 7 Co-57 1.29E-OI 4.17£-0 1 1.35£+00 u WG W-5 414162002 1/9/2017 Co-58 4.39£-01 4.68 E-01 1.39E+OO u WG W-5 414162002 1/9/2017 Co-60 7.47£-01 4.26E-0 1 1.44 E+OO u D-105 Don a ld C. Cook Nuclear Plant Annual Radio l ogical Environmental Operating Report 2 017 SAMPLE E ND CONC STD.D E V. MD C FLAGS TYPE STATION LSN DATE NUCLID E (pCi/L) (pC i/L) (p C i/L) WG W-5 4 141 62002 1/9/2017 C r-51 -5.16 E+OO 4.09E+OO J.30 E+O I u WG W-5 4 141 62002 1/9/20 17 Cs-134 -5.1 4E-OI 5.13 E-Ol l.54E+OO u WG W-5 414162002 1/9/20 1 7 Cs-1 37 6.34E-01 4.58E-Ol l.50E+OO u WG W-5 4 1 4 1 62002 1/9/20 17 Fe-59 -2.81E-02 8.7 1 E-01 2.95E+OO u WG W-5 414162002 1/9/2017 H-3 5.06 E+02 4.59E+02 l.42 E+03 u WG W-5 4 1 4 1 62002 1/9/2017 1-1 3 1 J.33 E-OI 7.74E-OI 2.63E+OO u WG W-5 4 1 4 1 62002 1/9/20 1 7 K-40 J.35 E+OI l.08E+OI 1.1 6E+OI UI WG W-5 414162002 1/9/2017 La-1 40 -6.97E-Ol 7.78E-O l 2.38E+OO u WG W-5 4 141 62002 1/9/2017 Mn-54 7.32E-02 4.48E-O I 1.45 E+OO u WG W-5 4 141 62002 1/9/2017 Nb-95 -9.1 3E-OI 9.29£-0 1 1.57 E+OO u WG W-5 414162002 1/9/20 17 R u-1 03 -6.07E-OI 5.27E-Ol l.44 E+OO u WG W-5 414 1 62002 1/9/2017 Ru-1 06 -1.1 2E+OO 3.8 1 E+OO 1.2 3E+OI u WG W-5 4 1 4 1 62002 1/9/2017 Sb-1 24 3.SO E-01 1.0 2E+OO 3.40E+OO u WG W-5 4 1 4162002 1/9/20 17 Sb-1 25 -8.95E-OI l.20E+OO 3.88E+OO u WG W-5 4 1 4 1 62002 1/9/20 1 7 Se-75 -l.24E+OO 7.12E-OI l.93E+OO u WG W-5 4 1 4 1 62002 1/9/20 17 T h-228 l.1 5E+OO l.51E+OO 3.47£+00 u WG W-5 4 1 4 1 62002 1/9/2017 Z n-65 l.1 3E+OO 9.65E-O l 2.99 E+OO u WG W-5 4 1 4 1 62002 1/9/2017 Z r-95 3.43 E-OI 7.66E-OI 2.52E+OO u WG W-6 414 1 62003 1/9/2017 Ac-228 -4.69 E+OO 2.98£+00 6.62E+OO u WG W-6 4 1 4162003 1/9/20 1 7 Ag-1 08m -3.69 E-0 3 4.06E-0 1 l .35E+OO u WG W-6 4 1 4162003 1/9/20 1 7 Ag-I !Om -3.36E-OI 6.1 9E-O I l.89E+OO u WG W-6 4 1 4 1 62003 1/9/20 1 7 Ba-1 40 2.89E+OO 2.38E+OO 7.82E+OO u WG W-6 4 1 4 1 62003 1/9/20 17 Be-7 -4.93E+OO 4.44E+OO J.36 E+OI u WG W-6 41416200 3 1/9/2017 Ce-14 1 9.88E-O l l.O I E+OO 2.92E+OO u WG W-6 414162003 1/9/2017 Ce-1 44 2.20E-OI 3.60E+OO l.1 3E+O I u WG W-6 414162003 1/9/2017 Co-57 -1.66E-OI 4.90E-O l 1.53 E+OO u WG W-6 4 1 4 1 62003 1/9/2017 Co-58 8.62E-02 4.68E-OI l.5 1 E+OO u WG W-6 4 1 4 1 62003 1/9/2017 Co-60 5.37E-OI 5.38 E-OI l.83E+OO u WG W-6 4 1 4 1 62003 1/9/2017 Cr-5 1 6.47E+OO 4.77E+OO l.58E+O I u WG W-6 4 1 4 1 62003 1/9/2017 Cs-134 5.55E-O l 5.36E-OI J.75 E+OO u WG W-6 41416200 3 1/9/2017 Cs-137 -1.70E-OI 5.19E-Ol 1.6 5 E+OO u WG W-6 414 1 62003 1/9/2017 Fe-59 1.1 6E-01 9.27E-OI 3.14 E+OO u WG W-6 414162003 1/9/2017 H-3 -9.25£-0 1 3.92E+02 l.29E+03 u WG W-6 414162003 1/9/2017 1-13 1 -l.06E+OO 8.S l E-01 2.6 1 E+OO u WG W-6 4 1 4 1 62003 1/9/2017 K-40 -2.39E+Ol J.35E+OI 2.77E+OI u WG W-6 414 1 62003 1/9/2017 La-1 40 -l.96E+OO 9.0 1 E-01 2.07E+OO u WG W-6 414 1 62003 1/9/20 1 7 Mn-54 9.44E-O I 5.23E-O l l.53E+OO u WG W-6 414162003 1/9/2 0 1 7 N b-95 6.0I E-0 1 5.70E-O l 1.68E+OO u WG W-6 4 14 1 62003 1/9/20 17 R u-1 03 -1.SO E+OO 6.1 7E-O l l.4 9E+OO u WG W-6 4 1 4 1 62003 1/9/20 17 R u-1 06 -2.23E+OO 4.68E+OO l.48 E+O I u WG W-6 4 1 4162003 1/9/2017 Sb-124 l.07E+OO l.1 9E+OO 3.64E+OO u WG W-6 4 1 4 1 62003 1/9/2017 Sb-1 25 1.32E+OO I .35E+OO 4.49 E+OO u WG W-6 414 1 62003 1/9/2017 Se-75 -l.OS E-01 6.84E-OI 2.3 1 E+OO u WG W-6 4 14 1 62003 1/9/2017 Th-228 2.I O E+OO 1.83E+OO 2.88E+OO u WG W-6 414162003 1/9/2017 Z n-65 8.0 I E-01 l.0 8E+OO 3.3 1 E+OO u WG W-6 414162003 1/9/20 1 7 Z r-95 9.l SE-01 8.66E-Ol 2.8 3E+OO u WG W-1 41454300 1 1/16/2017 Ac-228 -l.94E-O I 6.24E+OO 1.8 4E+OI u WG W-1 41454300 1 1/16/2017 Ag-10 8m 2.09E-0 2 l.22 E+OO 4.0SE+OO u WG W-1 414543001 1/16/2017 Ag-I !O m 5.99E-0 2 l.70 E+OO 5.48 E+OO u WG W-1 414543001 1/16/2017 Ba-1 40 2.52E+OO 6.79E+OO 2.29E+O I u D-106 Do n ald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END C O NC ST D.D E V. M D C FLAGS T YP E STATION LSN D ATE NUCL ID E (p C i/L) (pC i/L) (pCi/L) WG W-1 41454300 1 1/1 6/20 1 7 Be-7 -5.84E+OO l.1 2E+O I 3.5 1 E+O I u WG W-1 4 1 4543001 1/16/2 01 7 Ce-1 4 1 2.46E-O I 2.50E+OO 7.7 6E+OO u WG W-1 4 1 4543001 1/16/20 17 Ce-1 44 l.33E+O I 9.25E+OO 3.05E+O I u WG W-1 4 1 4543001 1/16/20 1 7 Co-57 -I .22E+OO l.2 1 E+OO 3.90E+OO u WG W-1 4 1 4543001 1/16/20 1 7 Co-58 -5.02E-0 1 I .34E+OO 4.1 4E+OO u WG W-1 41454300 1 1/1 6/20 1 7 Co-60 2.9 1 E-02 l.49E+OO 5.04E+OO u WG W-1 414543001 1/16/20 1 7 Cr-51 -l.57E+OI l.20E+O I 3.49E+O I u WG W-1 4 1 4543001 1/16/20 1 7 Cs-1 34 -4.1 4E-02 I.6 1 E+OO 5.20E+OO u WG W-1 4 1 4543001 1/16/20 1 7 Cs-1 37 1.72E+OO l.49E+OO 5.1 5E+OO u WG W-1 414543001 1/16/20 1 7 Fe-59 -3.64E+OO 3.23E+OO 8.5 1 E+OO u WG W-1 4 1 4543001 1/1 6/20 1 7 H-3 -4.39E+O I 4.04E+02 l.34E+03 u WG W-1 4 1 454300 1 1/1 6/20 17 1-1 31 l.29E+OO 2.48E+OO 8.47E+O O u WG W-1 4 1 4543001 1/16/20 1 7 K-40 -8.54E+OO 2.04E+O I 7.0 I E+O I u WG W-1 414543001 1/16/20 1 7 La-1 40 I.1 7E+OO 2.25E+OO 7.98E+OO u WG W-1 4 1 454300 1 1/16/20 17 M n-54 7.34E-O I l.5 1 E+OO 4.89E+O O u WG W-1 4 1 454300 1 1/16/20 1 7 Nb-95 -2.62E+OO l.99E+OO 5.20E+OO u WG W-1 414543001 1/16/20 1 7 Ru-1 03 -l.88E+OO 1.34E+OO 3.6 1 E+OO u WG W-1 414543001 1/16/20 1 7 R u-1 06 2.53E+OI 1.23E+O I 4.27E+O I u WG W-1 4 1 454300 1 1/1 6/2 0 1 7 Sb-1 24 -I .68E+OO 3.04E+OO 9.1 6E+OO u WG W-1 4 1 4543001 1/16/20 1 7 Sb-1 25 -I.27E+OO 3.44E+OO 1.1 I E+O I u WG W-1 4 1 454300 1 1/16/20 1 7 Se-75 -I .53E+OO l.76E+OO 5.55E+OO u WG W-1 4 1 4543001 1/16/20 1 7 Th-228 7.89E+OO 4.99E+OO I.08E+OI u WG W-1 414543001 1/1 6/20 1 7 Zn-65 -3.56E+OO 3.43E+OO 9.44E+OO u WG W-1 4 1 454300 1 1/16/20 1 7 Zr-95 2.07E-O I 2.33E+OO 7.60E+O O u WG W-3 4 1 4543002 1/16/20 1 7 Ac-228 -6. IS E-0 1 5.78E+O O l.93E+OI u WG W-3 4 1 4543002 1/16/20 1 7 Ag-1 08 111 -l.08E+OO 9.44E-0 1 2.7 1 E+OO u WG W-3 414543002 1/16/20 1 7 Ag-1 1 0111 -I .99E+OO l.83E+OO 5.42E+OO u WG W-3 4 1 4543002 1/16/20 1 7 Ba-1 40 -2.82E+OO 5.59E+OO l.73E+O I u WG W-3 414543002 1/16/20 1 7 Be-7 I.06E+OI I.05E+O I 3.6 1 E+O I u WG W-3 414543002 1/16/20 1 7 Ce-1 4 1 2.44E+OO 2.1 7E+OO 6.57E+OO u WG W-3 414543002 1/16/20 1 7 Ce-144 -1.5 1 E+O I 8.1 9E+OO 2.1 I E+O I u WG W-3 414543002 1/16/20 1 7 Co-57 -1.26E+OO 9.97E-0 1 2.85E+OO u WG W-3 414543002 1/1 6/20 1 7 Co-58 I.74E-OI l.22E+OO 3.92E+OO u WG W-3 414543002 1/16/20 1 7 Co-60 4.0SE-0 1 l.37E+OO 4.63E+OO u WG W-3 4 1 4543002 1/16/2 01 7 Cr-5 1 -3.5 1 E+OO l.04E+O I 3.43E+OI u WG W-3 4 1 4543002 1/16/20 1 7 Cs-1 34 -I.06E-0 1 l.45E+OO 4.57E+OO u WG W-3 4 1 4543002 1/16/20 1 7 Cs-1 37 -l.28E+OO l.22E+OO 3.32E+OO u WG W-3 4 1 4543002 1/16/20 1 7 Fe-59 2.29E+OO 2.46E+OO 8.7 6E+O O u WG W-3 4 1 4543002 1/16/20 1 7 H-3 -1.1 8E+02 4.0 I E+02 l.34E+03 u WG W-3 4 1 4543002 1/16/20 1 7 1-13 1 2.84E+OO 2.0 I E+OO 6.95E+OO u WG W-3 4 1 4543002 1/16/20 1 7 K-40 4.4 1 E+OO 2.02E+O I 6.7 1 E+O I u WG W-3 4 1 4543002 1/1 6/20 1 7 La-1 40 3.38E-O I 2.32E+OO 7.6 1 E+OO u WG W-3 4 1 4543002 1/16/20 1 7 Mn-54 -I .52E+OO l.08E+OO 2.92E+OO u WG W-3 4 1 4543002 1/16/20 1 7 Nb-95 l.23E+OO I .1 2E+OO 3.62E+OO u WG W-3 414543002 1/16/20 17 R u-1 03 -1.88E+OO l.26E+OO 3.36E+OO u WG W-3 4 1 4543002 1/16/20 1 7 Ru-1 06 8.56E+OO I.1 3E+O I 3.83E+O I u WG W-3 4 1 4543002 1/16/20 1 7 Sb-1 24 -2.87E+OO 2.1 5E+OO 3.93E+OO u W G W-3 4 1 4543002 1/16/20 17 S b-1 25 2.7 4 E-O I 2.95E+O O 9.86E+OO u WG W-3 4 1 4543002 1/16/20 1 7 Se-75 2.7 1 E+OO I .49E+OO 5.09E+O O u WG W-3 414543002 1/1 6/20 17 T h-228 -4.59E+OO 2.53E+OO 7.20E+OO u 0-107 Donald C. Cook Nuclear Plant Annual Radiologic a l Envi r onmental Operating Report 2 017 SAMPLE E ND CONC ST D.D EV. MDC FLAGS TYPE STATION LSN DATE NUCLID E (pCi/L) (pCi/L) (pCi/L) WG W-3 4 1 4543002 1/16/2017 Z n-65 -1.97 E+OO 2.72E+OO 8.26E+OO u WG W-3 4 1 4543002 1/1 6/2017 Z r-95 -6.74 E-Ol 2.1 I E+OO 6.47E+OO u WG W-9 4 1 4543003 1/16/20 1 7 Ac-228 3.78E+OO 4.60E+OO l.5 8E+Ol u WG W-9 4 1 4543003 1/16/20 1 7 A g-108m 9.88E-02 9.4 1 E-OI 3.24E+OO u WG W-9 4 1 4543003 1/16/2017 Ag-I I Om -1.4 1 E-0 I 1.51E+OO 4.83E+OO u WG W-9 4 1 4543003 1/16/2017 Ba-1 40 l.50 E+OO 5.87E+OO J.8 2E+OI u WG W-9 4 1454300 3 1/1 6/2017 Be-7 -9.2 4 E+OO 8.7 4 E+OO 2.62 E+OI u WG W-9 4 1 4543003 1/1 6/2017 Ce-1 4 1 -1.0 2 E+OO 2.0I E+OO 6.48 E+OO u WG W-9 4 1 4543003 1/16/2017 Ce-14 4 -4.46 E+OO 6.53E+OO 2.07E+OI u WG W-9 4 1 4543003 1/1 6/20 1 7 Co-57 -1 .22 E+OO l.03E+OO 2.99E+OO u WG W-9 4 1 4543003 1/16/2017 Co-58 -2.1 9 E+OO 1.1 6E+OO 2.49E+OO u WG W-9 4 1 4543003 1/16/2017 Co-60 -5.0 7 E-O I l.26E+OO 4.0 I E+OO u WG W-9 4 1 4543003 1/1 6/2017 Cr-5 1 -9.09 E+OO 9.77E+OO 2.77 E+OI u WG W-9 41454300 3 1/16/20 1 7 Cs-1 34 2.1 2E-O I 9.52£-01 3.19 E+OO u WG W-9 414543003 1/16/2017 Cs-137 8.71£-01 l.23E+OO 4.26E+OO u WG W-9 41454300 3 1/16/2017 Fe-5 9 -2.67£-0 1 2.22E+OO 6.92E+OO u WG W-9 414543003 1/16/20 1 7 H-3 3.80 E+02 4.26E+02 l.34E+03 u WG W-9 414543003 1/1 6/2017 1-1 31 -2.36 E+OO 2.06E+OO 5.60 E+OO u WG W-9 414543003 1/1 6/20 1 7 K-40 2.59 E+Ol 2.40E+OI 4.07 E+OI u WG W-9 4 1 4543003 1/16/2017 La-1 40 1.95E+OO 2.08E+OO 7.47E+OO u WG W-9 414543003 1/16/20 1 7 Mn-54 2.38E+OO 1.34E+OO 4.64E+OO u WG W-9 414543003 1/16/2017 Nb-9 5 6. I O E-01 l.24E+OO 4.30E+OO u WG W-9 4 1 4543003 1/16/2017 Ru-1 03 -l.23 E+OO 1.15 E+OO 3.45E+OO u WG W-9 414543003 1/16/2017 Ru-10 6 -2.50 E+OO 1.16 E+Ol 3.80E+OI u WG W-9 414543003 1/16/2017 S b-1 24 2.42 E+OO 2.22E+OO 8.45E+OO u WG W-9 4 1 4543003 1/16/2017 S b-1 25 l.68E-OI 3.0 4E+OO l.0 4E+O I u WG W-9 4 1 4543003 1/16/2017 Se-75 1.54 E+OO l.67E+OO 5.50 E+OO u WG W-9 4 1 4543003 1/16/2017 T h-228 -3.68£-0 1 2.30E+OO 7.30E+OO u WG W-9 4 1 4543003 1/16/2017 Z n-65 8.91 E-01 2.44E+OO 8.05E+OO u WG W-9 4 1 4543003 1/16/2017 Z r-95 3.73 E+OO l.80E+OO 5.97 E+OO u WG W-10 4 1 4543004 1/1 6/20 1 7 Ac-228 -3.70 E+OO 4.63E+OO 1.34E+O I u WG W-1 0 414543004 1/16/20 1 7 Ag-1 08m 4.07 E-02 9.7 1 E-01 3.30E+OO u WG W-10 4 1 4543 00 4 1/16/2017 Ag-I I Om -7.29 E-O I l.05E+OO 3.0 l E+OO u WG W-10 4 1 4543004 1/16/20 1 7 Ba-140 l.88E+O O 4.77E+OO l.64E+O I u WG W-10 4 1 4543004 1/16/2017 Be-7 -2.51 E-0 1 8.62E+OO 2.90E+OI u WG W-10 414543004 1/16/2017 Ce-1 41 -8. I 3 E-01 l.83E+OO 5.34E+OO u WG W-10 4 14 543004 1/16/2017 Ce-1 44 4.08£-01 6.60E+OO 2.1 4E+OI u WG W-10 4 1 4543004 1/16/20 1 7 Co-57 l.03 E+OO 9.08£-01 2.82E+OO u WG W-1 0 414543004 1/16/20 17 C o-58 5.98£-01 l.0 8E+OO 3.67E+OO u WG W-10 4 1 4543004 1/16/20 1 7 Co-60 l.6 1 E+OO 7.49E-O I 3.0 2E+OO u WG W-1 0 4 1 4543004 1/16/20 1 7 C r-5 1 l.34 E+OO 7.65E+OO 2.66 E+OI u WG W-10 4 1 4543 004 1/16/20 1 7 Cs-1 34 -2.41 E+OO l.42 E+OO 3.49E+OO u WG W-10 4 1 4543004 1/16/2017 Cs-137 -5.95£-01 9.13£-01 2.78 E+OO u WG W-1 0 4 1 4543004 1/16/20 1 7 Fe-59 -l.72 E-Ol 2.15 E+OO 6.80 E+OO u WG W-1 0 4 1 4543004 1/16/20 1 7 H-3 -1.92 E+02 3.96E+02 1.33 E+0 3 u WG W-10 4 14 543004 1/16/2017 1-1 3 1 -4.86E-O I l.67E+OO 5.58 E+OO u WG W-10 4 1 4543004 1/16/20 1 7 K-40 2.72 E+OI l.54E+OI 2.34E+O I UI WG W-1 0 4 1 4543004 1/16/20 17 La-14 0 l.04 E+OO l.6 7 E+OO 5.94E+OO u WG W-1 0 4 1 4543004 1/16/2017 Mn-54 2.98 E-OI 6.95£-01 2.18 E+OO u WG W-1 0 4 1 454300 4 1/1 6/2017 Nb-95 -6.12 E-OI l.24E+OO 3.38E+OO u 0-108 Donald C. Cook Nuc l ear Plant An n ual Rad i o l ogica l Environmental Operating Report 2017 SAMPLE END C O NC ST D.DE V. MDC FLAGS TYPE STATIO N LSN D ATE NUCL ID E (pC i/L) (pCi/L) (pC i/L) WG W-10 4 1 4543004 1/16/20 17 R u-1 03 -3.80E-O I 9.66E-0 1 3.13E+OO u WG W-10 4 1 4543004 1/16/20 17 R u-1 06 -1.1 8 E+OO 8.07 E+OO 2.64E+O I u WG W-10 4 1 4543004 1/16/20 17 Sb-1 24 1.1 2E-O I 2.20E+OO 7.3 7 E+OO u WG W-1 0 4 1 4543004 1/16/20 1 7 Sb-1 25 2.1 5E+OO 2.60 E+OO 9.1 4E+OO u WG W-10 4 1 4543004 1/16/20 1 7 Se-75 -3.90E-O I 1.51E+OO 4.63E+OO u WG W-10 4 1 4543004 1/16/20 1 7 Th-228 9.27E+OO 4.25 E+OO 8.67E+OO UI WG W-1 0 41454 3 004 1/16/20 1 7 Zn-65 -l.35E+OO 2.02 E+O O 5.75E+OO u WG W-1 0 4 1 4543004 1/1 6/20 1 7 Z r-95 6.33E-OI l.54 E+OO 5.25E+OO u WG W-11 4 1 4543005 1/16/20 1 7 Ac-228 -1.06E+OI 6.44 E+O O 1.78E+O I u WG W-11 4 1 4543005 1/16/20 1 7 Ag-1 08 m 4.25E-01 l.08 E+O O 3.69E+OO u WG W-11 4 1 454300 5 1/16/20 1 7 Ag-1 1 0 111 2.74E+OO 1.62 E+OO 5.56E+OO u WG W-11 4 1 4543005 1/16/20 1 7 Ba-1 40 -7.1 8E+OO 5.55 E+O O 1.54E+O I u WG W-1 1 414543005 1/1 6/20 1 7 Be-7 1.1 6E+Ol 9.99 E+OO 3.48E+O I u WG W-11 4 1 4543005 1/16/20 1 7 Ce-1 4 1 -1.83E+OO 2.33 E+O O 7.09E+OO u WG W-1 1 4 1 4543005 1/1 6/20 1 7 Ce-1 44 l.32E+OO 7.59 E+OO 2.46E+O I u WG W-11 4 1 4543005 1/16/20 1 7 Co-57 4.75£-01 l.1 0 E+O O 3.36E+OO u WG W-11 4 1 4543005 1/1 6/20 1 7 Co-58 -2.42E+OO l.26E+OO 2.73E+OO u WG W-11 4 1 4543005 1/16/20 1 7 Co-60 8.06E-0 1 7.51E-0 1 2.89E+OO u WG W-1 1 4 1 4543005 1/16/20 1 7 C r-5 1 2.55E+OO l.02E+Ol 3.54E+O I u WG W-11 4 1 4543005 1/16/20 1 7 Cs-1 34 7.98E-01 I.21 E+OO 4.1 2E+OO u WG W-11 4 1 4543005 1/16/20 1 7 Cs-1 37 -1.08E+OO l.20 E+OO 3.5 1 E+OO u WG W-11 4 1 4543005 1/16/20 1 7 Fe-59 -8.88E-OI l.90 E+OO 6.06E+OO u WG W-11 4 1 4543005 1/16/20 1 7 H-3 2.89E+02 4.1 4 E+02 l.3 1 E+0 3 u WG W-1 1 4 1 4543005 1/1 6/20 1 7 1-1 31 -3.9 1 E+OO 2.1 8 E+OO 5.92E+OO u WG W-11 4 1 4543005 1/1 6/20 17 K-40 -4.99E+O I 1.86E+0 1 3.72E+OI u WG W-11 4 1 4543005 1/1 6/20 17 La-1 40 -1. I 2E+OO 2.70 E+OO 7.89E+O O u WG W-1 1 4 1 4543005 1/16/20 1 7 M n-54 2.08E+OO l.27E+OO 4.1 5E+O O u WG W-11 4 1 4543005 1/1 6/20 1 7 Nb-95 2.05E+OO l.36 E+OO 3.93E+O O u WG W-1 1 4 1 4543005 1/1 6/20 17 R u-1 03 -1.08E+OO l.27 E+O O 3.88E+OO u WG W-11 4 1 4543005 1/1 6/20 17 R u-1 06 -1.27E+Ol I .09 E+O I 3.09E+O I u WG W-11 41454 3 005 1/1 6/20 1 7 Sb-1 24 -2.57E+OO 3.28 E+OO 9.50E+OO u WG W-1 1 4 1 4543005 1/1 6/20 1 7 Sb-1 25 2.1 3E+OO 3.28 E+OO l.1 3E+O I u WG W-1 1 414543005 1/16/20 1 7 Se-75 -9.45E-01 l.60 E+OO 4.74E+OO u WG W-11 4 1 4543005 1/1 6/20 17 T h-228 6.56£-01 3.52 E+OO 9.47E+OO u WG W-11 414543005 1/16/20 1 7 Zn-65 -l.97E+OO 2.56 E+OO 7.92E+O O u WG W-11 4 1 4543005 1/16/20 1 7 Z r-95 -1.86E+OO 2.59 E+OO 6.72E+OO u W G W-1 5 4 1 4676001 1/1 8/20 17 Ac-228 1.32E+Ol 6.90 E+OO l.45E+O I u W G W-15 4 1 4676001 1/18/20 17 A g-1 08m -7.53E-O I 7.88E-0 1 2.4 1 E+OO u W G W-1 5 41467600 1 1/18/20 1 7 Ag-I I Om 6.46E-01 1.08 E+OO 3.64E+OO u W G W-15 4 1 4676001 1/18/20 1 7 Ba-1 40 3.I O E+OO 4.25 E+OO l.44E+O I u W G W-15 4 1 4676001 1/18/20 17 Be-7 3.75E-01 7.94E+OO 2.63E+O I u W G W-1 5 4 1 4676001 1/18/20 I 7 Ce-1 4 1 7.74E-02 l.82E+OO 5.62E+OO u W G W-15 4 1 4676001 1/18/20 I 7 Ce-1 44 5.92E+OO 9.04 E+OO 2.18E+O I u W G W-1 5 4 1 4 6 76001 1/18/20 1 7 Co-57 7.48 E-0 1 8.86 E-O I 3.05E+OO u W G W-15 4 1 4676001 1/18/20 1 7 C o-58 -5.40E-0 1 I.O I E+OO 3. I OE+OO u W G W-15 4 1 4676001 1/18/20 1 7 Co-60 -3. IO E-01 9.97 E-0 1 3.28E+OO u W G W-15 4 1 4676001 1/18/20 17 C r-5 1 -1.55E+O I 9.07 E+OO 2.57E+O I u W G W-1 5 4 1 467600 1 1/1 8/20 1 7 Cs-134 -7.1 7E-01 l.02 E+OO 3.07E+OO u W G W-1 5 4 1 4676001 1/1 8/20 1 7 Cs-1 37 -1.05E+OO I .07 E+OO 3.17E+OO u W G W-1 5 4 1 4676001 1/18/20 1 7 Fe-59 -I .62 E+OO l.87 E+OO 5.3 1 E+OO u D-109 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2 017 SA MPL E E ND C O NC ST D.D E V. MD C F L AGS T YP E STATIO N LS N DAT E NU CL ID E (pCi/L) (pCi/L) (pCi/L) WG W-15 4 1 46760 01 1/1 8/2 01 7 H-3 -1.22E+02 4.70E+02 l.5 6E+03 u WG W-15 4 1 467600 1 1/18/20 1 7 1-1 3 1 2.2 1 E+OO l.69E+OO 5.68E+OO u WG W-1 5 4 1 467600 1 1/18/2 017 K-40 -1.4 1 E+O I J.43E+OI 4.3 1 E+O I u WG W-15 4 1 467600 1 1/18/20 1 7 La-1 40 2.59E+OO J.48E+OO 5.49E+OO u WG W-1 5 4 1 467600 1 1/18/201 7 Mn-54 -J.87E+OO l.1 9E+OO 2.72E+OO u WG W-1 5 4 1 467600 1 1/18/20 1 7 Nb-95 -2.1 5E+OO I .42E+OO 3.05E+OO u WG W-1 5 4 1 467600 1 1/18/20 17 R u-1 03 -6.6 1 E-O I 9.57E-0 1 2.9 9E+OO u WG W-15 41467600 1 1/18/20 1 7 R u-1 06 l.97E-O I 8.79E+OO 2.5 7E+O l u WG W-1 5 4 1 467600 1 1/18/2 0 17 S b-1 24 -l.63E+OO 2.1 6E+O O 6.47E+OO u WG W-15 41467600 1 1/18/20 1 7 Sb-1 25 -3.06E+OO 2.56E+OO 7.63E+OO u WG W-1 5 4 1 4676001 1/18/2 0 1 7 Se-75 -1.08E+OO J.28E+OO 4.1 2E+OO u WG W-1 5 4 1 467600 1 1/18/20 17 T h-228 3.24 E+OO 3.4 1 E+OO 7.1 4E+OO u WG W-1 5 41467600 1 1/1 8/20 1 7 Z n-65 -1.7 4E+OO 2.28E+OO 5.66E+OO u WG W-1 5 4 1 4676001 1/18/20 1 7 Z r-95 -7.53E-O I J.69E+OO 5.25E+OO u WG W-2 4 1 48 1 500 1 1/19/20 1 7 Ac-228 -3.87E+OO 3.98E+OO l. 1 2E+O I u WG W-2 4 1 48 1 5001 1/19/2 0 1 7 Ag-1 08 m -l.98E-0 1 6.3 1 E-O I 2.0 5E+OO u WG W-2 4148 1 500 1 1/19/20 1 7 Ag-I I O m 1.9 1 E-0 1 l.04E+OO 3.56E+OO u WG W-2 4148 1 500 1 1/19/2 0 1 7 Ba-1 40 2.0 7 E+OO 4.0 0 E+OO 1.34E+O I u WG W-2 4148 1 500 1 1/19/20 1 7 Be-7 l.23E+O I 8.04E+OO 2.67E+O I u WG W-2 4 1 48 1 5001 1/19/2 01 7 Ce-1 4 1 -2.76E-O I l.53E+OO 4.87E+OO u WG W-2 4 1 48 1 500 1 1/19/20 1 7 Ce-1 44 -3.30E+OO 5.64E+OO l.76E+O I u WG W-2 4148 1 500 1 1/1 9/2 0 1 7 Co-57 -1.83E-O I 7.06E-O I 2.26E+OO u WG W-2 4 1 48 1 500 1 1/1 9/2 01 7 Co-58 I .39E-O I 8.1 8E-O I 2.81E+OO u WG W-2 4 1 48 1 500 1 1/1 9/20 17 Co-60 -8.32E-O l 8.70E-O I 2.5 3E+OO u WG W-2 4 1 48 1 50 0 1 1/1 9/2 01 7 C r-5 1 -2.64E+OO 7.6 1 E+OO 2.5 3E+O I u WG W-2 4 1 48 1 500 1 1/19/20 1 7 Cs-134 -1.37E+OO l.08E+OO 2.78 E+OO u WG W-2 4 1 48 1 500 1 1/1 9/20 1 7 Cs-1 37 5.1 8E-02 8.3 1 E-O I 2.68E+OO u WG W-2 4 1 48 1 500 1 1/1 9/20 1 7 Fe-59 l.52E+OO l.7 1 E+OO 5.9 1 E+OO u WG W-2 4 1 48 1 5001 1/1 9/20 1 7 H-3 3.1 2E+02 4.1 6E+0 2 1.3 1 E+03 u WG W-2 4148 1 500 1 1/1 9/20 17 1-13 1 5.77E-O I l.60E+OO 5.43E+OO u WG W-2 4148 1 500 1 1/1 9/20 1 7 K-40 4.3 1 E+O I l.37E+O I 2.64E+OI WG W-2 4148 1 500 1 1/19/20 1 7 La-1 40 -4.76E-O I l.72E+OO 4.62E+OO u WG W-2 4 1 48 1 500 1 1/19/2 01 7 M n-54 -7.62E-0 1 6.83E-O I 2.05E+OO u WG W-2 4 1 48 1 5001 1/19/20 1 7 Nb-95 I. I 7E+OO 9.60E-OI 3.1 6E+OO u WG W-2 4148 1 500 1 1/19/2 0 1 7 Ru-1 03 -1.85E+OO l.07E+OO 2.92E+OO u WG W-2 4 1 48 1 500 1 1/19/20 1 7 Ru-1 06 l.03E+OO 7.63E+OO 2.49 E+OI u WG W-2 4 1 48 1 500 1 1/19/20 1 7 Sb-1 24 l.68E+OO l.76E+OO 5.67E+OO u WG W-2 4 1 48 1 500 1 1/1 9/20 1 7 S b-1 25 -3.09E+O O 2.1 3E+OO 6.1 I E+OO u WG W-2 4 1 48 1 5001 1/19/20 1 7 Se-75 5.54E-02 l.03E+OO 3.53E+OO u WG W-2 4 1 48 1 500 1 1/19/20 1 7 T h-228 2.35E+O O 2.73E+OO 4.88E+OO u WG W-2 4 1 48 1 500 1 1/1 9/20 1 7 Z n-65 9.20 E-02 l.88E+OO 5.5 0E+OO u WG W-2 4 1 48 1 5 0 0 1 1/1 9/20 1 7 Z r-95 -1.25E+OO l.58E+OO 4.66E+OO u WG W-1 2 4148 1 5002 1/19/20 1 7 Ac-228 -4.57 E+OO 4.20E+OO 9.08E+OO u WG W-1 2 4 1 48 1 5002 1/19/20 1 7 Ag-1 08 m 9.I OE-0 1 6.56E-O I 2.2 1 E+OO u WG W-1 2 4 1 48 1 5002 1/1 9/20 1 7 Ag-I I Om -6.3 1 E-O I l.04E+O O 3.1 3E+OO u WG W-12 4 1 48 1 5002 1/19/20 1 7 Ba-1 40 -l.75 E+O O 4.3 1 E+OO l.23E+OI u WG W-12 4 1 48 1 5002 1/19/20 1 7 Be-7 2.54E+O I J.08E+O l 2.37E+O I U I WG W-1 2 4 1 48 1 5002 1/1 9/20 1 7 Ce-1 4 1 -l.39E+OO 1.58E+OO 4.32E+OO u WG W-1 2 4 1 48 1 5002 1/1 9/20 1 7 Ce-1 44 -l.06E+Ol 5.87E+OO l.46E+O I u WG W-1 2 4 1 48 1 5002 1/19/20 1 7 Co-57 -6.87E-O I 6.7 1 E-O I 2.02E+OO u D-110 Do n ald C. Cook Nuclear Plan t Annual Radiolog i cal Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DAT E NUCLIDE (pCi/L) (pCi/L) (pC i/L) WG W-12 414815002 1/19/20 1 7 Co-58 -7.0 I E-01 7.80E-0 1 2.28E+OO u WG W-12 4 1 48 1 5002 1/19/20 1 7 Co-60 9.79 E-02 7.27E-OI 2.44E+OO u WG W-1 2 414815002 1/19/20 1 7 C r-5 1 -l.36E+O I 7.34 E+OO 2.07E+O I u WG W-1 2 414815002 1/19/20 17 Cs-134 -4.94E-01 7.76E-O I 2.34E+OO u WG W-12 4 1 4815002 1/19/20 1 7 Cs-1 37 -6.39E-OI 9.73E-O I 2.50E+OO u WG W-1 2 4 1 48 1 5002 1/19/20 17 Fe-59 2.80E+OO 1.42E+OO 4.67E+OO u WG W-1 2 414815002 1/19/20 1 7 H-3 5.03E+02 3.90E+02 I .1 9E+03 u WG W-1 2 414815002 1/19/20 17 1-1 31 2.39E-02 l.61 E+OO 4.86E+OO u WG W-1 2 4 1 48 1 5002 1/19/20 17 K-40 -l.88 E+O I l.21 E+OI 3.30E+O I u WG W-1 2 4 1 4815002 1/19/20 17 La-1 40 -2.19 E+OO l.81 E+OO 4.27E+OO u WG W-12 414815002 1/1 9/20 17 Mn-54 -3.32E-02 6.77E-0 1 2.1 6E+OO u WG W-12 414815002 1/19/20 1 7 N b-95 3.28E-01 9.I I E-0 1 2.68E+OO u WG W-1 2 4 1 4815002 1/19/20 1 7 R u-10 3 -9.73E-OI 8.60E-O I 2.25E+OO u WG W-12 4 1 48 1 5002 1/19/20 1 7 Ru-106 3.06E-0 3 6.44E+OO 2.I OE+OI u WG W-12 4 1 4815002 1/1 9/20 17 Sb-1 24 2.66E+OO l.59 E+OO 5.74E+OO u WG W-1 2 4 1 4815002 1/19/2 017 Sb-1 25 1.09 E+OO l.88 E+OO 6.38E+OO u WG W-1 2 4 1 4815002 1/19/20 1 7 Se-75 -2.59E-0 1 8.74E-01 2.95E+OO u WG W-1 2 4 1 4815002 1/19/20 1 7 Th-228 -2.44E+OO l.9 1E+OO 4.7 1 E+OO u WG W-1 2 414815002 1/19/20 1 7 Z n-65 -1.41 E-01 l.65E+OO 4.85E+OO u WG W-12 4 1 48 15002 1/19/20 17 Zr-95 2.9 1 E+OO l.60E+OO 5.23E+OO u WG MW-20 4 1 4815003 1/19/20 17 Ac-228 5.54E+OO 4.93 E+OO l.lOE+OI u WG MW-20 4 1 4815003 1/19/20 1 7 Ag-108m -2.17 E-0 1 6.94E-0 1 2.26E+OO u WG MW-20 4 1 48 1 5003 1/19/20 1 7 Ag-110111 -l.23E+OO 8.56 E-OI 2.43E+OO u WG MW-20 4 1 4815003 1/1 9/20 1 7 Ba-1 40 7.78 E+OO 5.20 E+OO l.39E+OI u WG MW-20 4 1 48 1 5003 1/19/20 17 Be-7 4.79E+OO 6.65E+OO 2.23E+O I u WG MW-20 4 1 4815003 1/19/20 17 Ce-1 4 1 -3.37E+OO l.82E+OO 4.32E+OO u WG MW-20 4 1 4815003 1/19/20 1 7 Ce-144 2.25E+OO 4.93 E+OO l.59E+OI u WG MW-20 4 1 4815003 1/19/20 17 Co-57 2.88E-OI 6.31E-O I 2.04E+OO u WG MW-20 414815003 1/19/20 1 7 Co-58 -4.8 6E-O I 6.69E-O I 2.1 4E+OO u WG MW-20 414815003 1/19/20 1 7 Co-60 -2.64E-O I 6.53 E-OI 2.05E+OO u WG MW-20 414815003 1/1 9/2017 C r-51 -8.43E+OO 6.96E+OO 2.15 E+O I u WG MW-20 4 1 4815003 1/19/20 1 7 Cs-134 -4.27E-O I 8.29E-OI 2.5 1 E+OO u W G MW-20 4 1 48 1 5003 1/1 9/20 1 7 Cs-137 -l.07 E+OO 9.68E-0 1 2.57 E+OO u W G MW-20 414815003 1/19/20 1 7 Fe-59 -2.96E+OO l.82 E+OO 4.02E+OO u WG MW-20 414815003 1/19/20 17 H-3 7.35E+02 4.05 E+02 I .1 9E+03 u W G MW-20 414815003 1/19/20 17 1-1 3 1 2.43E-OI l.49 E+OO 5.02E+OO u W G MW-20 4 1 48 1 5003 1/19/20 17 K-40 -l.31 E+O I 1.29E+O I 3.7 3E+O I u W G MW-20 4 1 4815003 1/19/20 1 7 La-140 -2.60E+OO l.6 2E+OO 4.13E+OO u W G MW-20 414815003 1/19/20 17 Mn-54 2.75E-01 7.02E-0 1 2.42E+OO u W G MW-20 4 1 4815003 1/19/20 17 Nb-95 -9.35E-OI 1.24 E+OO 2.62E+OO u W G MW-20 4 1 4815003 1/1 9/20 17 Ru-103 -1.0 2E+OO 9.l 9E-OI 2.40E+OO u W G MW-20 4 1 4815003 1/19/20 17 R u-10 6 l.73E+OO 6.70 E+OO 2.1 9E+O I u W G MW-20 4 1 4815003 1/19/20 1 7 Sb-1 24 -l.26E+OO l.83E+O O 5.37E+OO u W G MW-20 4 1 4815003 1/19/20 1 7 Sb-1 25 -l.06E+OO 2.I OE+OO 6.76 E+OO u W G MW-20 4 1 4815003 1/19/20 1 7 Se-75 2.0SE-01 9.63 E-01 3.30E+OO u W G MW-20 4 1 4815003 1/19/20 17 Th-228 5.63 E+OO 2.92E+OO 4.45E+OO UI W G MW-20 4 1 4815003 1/19/20 1 7 Z n-65 -5.4 9E-01 I.51 E+OO 4.22E+OO u W G MW-20 4 1 48 1 5003 1/1 9/20 1 7 Z r-95 2.39E+OO l.4 5E+OO 4.74E+OO u W G MW-21 414815004 1/19/20 1 7 Ac-228 5.52E+OO 4.93 E+OO 1.26E+O I u W G MW-2 1 4 1 4815004 1/1 9/20 1 7 Ag-1 08111 l.38E+OO l.25E+OO 2.39E+OO u D-1 11 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE E ND CONC ST D.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pC i/L) (pCi/L) (pCi/L) WG MW-2 1 4148 1 5004 1/1 9/20 1 7 Ag-I I Om l.63E+OO 9.69E-O I 3.08E+OO u WG MW-2 1 414815004 1/19/20 1 7 Ba-1 40 2.41 E+OO 3.85E+OO I.32E+OI u WG MW-2 1 4148 1 5004 1/19/20 1 7 Be-7 -6.49E-O I 6.42E+OO 2.1 6E+O I u WG MW-2 1 414815004 1/19/20 1 7 Ce-141 1.19E+O O 2.8 1 E+OO 4.1 6E+OO u WG MW-2 1 4 1 48 1 5004 1/1 9/20 1 7 Ce-1 44 -6.62E-OI 5.36E+OO I.72E+OI u WG MW-2 1 414815004 1/19/20 1 7 Co-57 -I.13E+OO 7.78E-OI 2.27E+OO u WG MW-2 1 4 1 48 1 5004 1/19/20 1 7 Co-58 -6.56E-O I 8.39E-0 1 2.24E+OO u WG MW-21 4148 1 5004 1/19/20 1 7 Co-60 -9.32E-OI I.O I E+OO 2.26E+OO u WG MW-2 1 4148 1 5004 1/19/20 1 7 Cr-5 1 3.05E+OO 6.77E+OO 2.35E+OI u WG MW-21 4148 1 5004 1/19/20 1 7 Cs-134 l.1 8 E+OO 8.I IE-0 1 2.75 E+OO u WG MW-2 1 4148 1 5004 1/19/20 1 7 Cs-137 -7.51 E-0 1 1.0 I E+OO 2.36E+OO u WG MW-2 1 4 1 48 1 5004 1/19/20 1 7 Fe-59 l.82E+OO 2.03E+OO 4.93 E+OO u WG MW-2 1 4148 1 5004 1/19/20 17 H-3 5.0 I E+02 3.89E+02 I.1 8E+03 u WG MW-2 1 414815004 1/19/20 1 7 1-13 1 I .56 E-0 1 1.44E+OO 4.94E+OO u WG MW-2 1 414815004 1/19/20 1 7 K-40 -2.23E+O I l.29E+O I 3.80E+OI u WG MW-2 1 4148 1 5004 1/19/20 1 7 La-1 40 -1.97E+OO I.43E+OO 4.02E+OO u WG MW-2 1 414815004 1/19/20 17 M n-54 -1.24E-0 1 6.34E-O I 2.04 E+OO u WG MW-2 1 414815004 1/19/20 1 7 Nb-95 -I .06E+OO 9.97E-O I 2.5 1 E+OO u WG MW-2 1 4148 1 5004 1/19/20 1 7 Ru-I 03 -1.1 8E+OO 8.24E-O I 2.43E+OO u WG MW-2 1 4 1 48 1 5004 1/19/20 1 7 Ru-1 06 3.59E+OO 6.43E+OO 2.1 9E+OI u WG MW-21 4148 1 5004 1/19/20 1 7 Sb-124 2.28E-O I l.53E+OO 5.18 E+OO u WG MW-2 1 414815004 1/19/20 1 7 S b-1 25 -2.0 I E-0 1 2.06E+OO 6.95E+OO u WG MW-2 1 4148 1 5004 1/1 9/20 1 7 Se-75 -7.72E-O I I.08E+OO 3.25E+OO u WG MW-2 1 4 1 48 1 5004 1/19/20 1 7 T h-228 -3.37E+OO l.99E+OO 4.98E+OO u WG MW-2 1 4148 1 5004 1/19/20 1 7 Z n-65 5.52E-O I l.33E+OO 4.40E+OO u WG MW-2 1 4 1 48 1 5004 1/19/20 1 7 Zr-95 2.50E+OO 1.44E+OO 4.5 1 E+OO u WG SG-1 4148 1 5005 1/19/20 1 7 Ac-228 3.91E+OO 3.00E+OO 1.06E+OI u WG SG-1 4148 1 5005 1/1 9/20 1 7 Ag-108111 -5.60E-0 1 7.76E-0 1 2.43E+OO u WG SG-1 4148 1 5005 1/1 9/20 1 7 Ag-ll Om -l .26E-O I 1.08E+OO 3.38E+OO u WG SG-1 4148 1 5005 1/1 9/20 1 7 ALPHA -2.20 E+OO I.2 1 E+OO 4.1 7 E+OO u DL WG SG-1 4148 1 5005 1/19/20 1 7 Ba-1 40 -2.27E+OO 4.35E+OO 1.36E+O I u WG SG-1 4148 1 5005 1/19/20 1 7 Be-7 I.73 E+OO 7.33E+OO 2.1 9 E+Ol u WG SG-1 4 1 48 1 5005 1/1 9/20 1 7 BETA 4.05E+OO 7.20E-01 l.85E+OO WG SG-1 4 1 48 1 5005 1/1 9/20 1 7 Ce-1 41 -9.69E-O I l.85E+OO 5.38E+OO u WG SG-1 4 1 48 1 5005 1/19/20 1 7 Ce-1 44 4.29E+OO 6.35E+OO 2.00E+Ol u WG SG-1 4148 1 5005 1/19/20 1 7 Co-57 6.18E-O I 8.78E-OI 2.76E+OO u WG SG-1 4148 1 5005 1/19/20 1 7 Co-58 -3.28E-O I 8.37E-OI 2.57E+OO u WG SG-1 4148 1 5005 1/19/20 1 7 Co-60 -4.04E-O I 8.44E-OI 2.67E+OO u WG SG-1 4148 1 5005 1/19/20 1 7 Cr-5 1 4.8 1E-O I 7.60E+OO 2.54E+O I u WG SG-1 4148 1 5005 1/19/20 1 7 Cs-1 34 I.79E+OO I.OOE+OO 3.32E+OO u WG SG-1 4148 1 5005 1/1 9/20 1 7 Cs-137 -5.78 E-0 1 9.58E-O I 2.94E+OO u WG SG-1 4 1 48 1 5005 1/19/20 1 7 Fe-59 7.58E-O I 1.70E+OO 5.85E+OO u WG SG-1 4148 1 5005 1/1 9/20 1 7 H-3 6.60E+02 4.00E+02 I.1 9 E+03 u WG SG-1 4 1 48 1 5005 1/1 9/20 1 7 1-131 -9.00 E-0 1 I.49E+OO 4.75 E+OO u WG SG-1 4 1 48 1 5005 1/19/20 17 K-40 -l.94E+OI l.35E+O I 3.63E+OI u WG SG-1 4 1 4815005 1/1 9/20 1 7 La-1 40 -3.77 E-0 1 1.28E+OO 3.7 1 E+OO u WG SG-1 4 1 48 1 5005 1/1 9/20 1 7 Mn-54 7.88E-O I 8.22E-0 1 2.74E+OO u WG SG-1 4 1 48 1 5005 1/19/20 1 7 Nb-95 -1.82E+OO 9.82E-0 1 2.40E+OO u WG SG-1 4 1 48 1 5005 1/19/20 1 7 R u-1 0 3 -6.66 E-0 1 9.29E-0 1 2.88E+OO u WG SG-1 414815005 1/19/20 1 7 R u-1 06 9.72E+OO 7.95E+OO 2.66E+OI u D-112 Don a ld C. Cook Nuclear P la nt Annual Radiological Environmental Operating Report 2017 SAMPLE EN D CONC STD.DEV. MDC FLAGS TYPE STATIO N LSN DATE NUCLIDE (pC i/L) (p C i/L) (pC i/L) WG SG-1 414815005 1/19/20 17 S b-1 24 -2.09E+OO 2.46 E+OO 6.02E+OO u WG SG-1 4 1 48 1 5005 1/19/20 1 7 Sb-1 25 -4.19 E-0 1 2.15 E+OO 7.00 E+OO u WG SG-1 4 1 48 1 5005 1/19/20 1 7 Se-75 -2.70E+OO 1.30E+OO 3.50E+OO u WG SG-1 414815005 1/19/20 17 T h-228 -9.74E-Ol l.89 E+OO 5.84E+OO u WG SG-1 414815005 1/19/20 17 Z n-65 8.9 1 E-Ol 1.69E+OO 5.27 E+OO u WG SG-1 414815005 1/19/20 17 Z r-95 -2.20E+OO l.55 E+OO 4.12 E+OO u WG SG-2 414815006 1/19/20 1 7 Ac-228 -8.45 E+OO 4.95E+OO 1.24E+O I u WG SG-2 4148 1 5006 1/19/20 1 7 Ag-1 08 m 7.03 E-O l 7.14 E-O I 2.45E+OO u WG SG-2 414815006 1/1 9/20 17 Ag-I I Om -3.4 1 E-OI l.06 E+OO 3.31E+OO u WG SG-2 4 1 4815006 1/19/20 1 7 ALPHA -1.02 E-01 9.75E-OI 3.19E+OO u WG SG-2 4148 1 5006 1/19/20 I 7 Ba-1 40 4.6 4E+OO 4.25E+OO l.45 E+OI u WG SG-2 4 1 48 1 5006 1/19/20 I 7 Be-7 -9.92E-O I 7.14E+OO 2.37E+O I u WG SG-2 4 1 4815006 1/1 9/20 I 7 BETA l.96E+OO 5.97E-O I 1.77 E+OO M WG SG-2 414815006 1/19/20 1 7 Ce-1 41 -J.7 1 E+OO 1.54E+OO 4.59E+OO u WG SG-2 41 48 15006 1/19/20 1 7 Ce-1 44 5.23E+OO 5.80E+OO l.88E+O I u WG SG-2 4 1 4815006 1/19/20 17 Co-57 -9.42E-0 1 7.44E-01 2.19E+OO u WG SG-2 4 1 4815006 1/19/2017 Co-58 1.07E+OO 8.36E-OI 2.82E+OO u WG SG-2 4 1 48 1 5006 1/19/20 17 Co-60 1.5 4E-OI 8.12 E-OI 2.76E+OO u WG SG-2 4148 1 5006 1/1 9/20 1 7 C r-51 -4.60 E+OO 7.38E+OO 2.43 E+OI u WG SG-2 4 1 48 1 5006 1/1 9/20 1 7 Cs-134 1.74 E+OO 9.62E-O I 3.2 1 E+OO u WG SG-2 414 8 15006 1/19/2017 Cs-137 -5.l l E-0 1 7.94E-OI 2.45E+OO u WG SG-2 414815006 1/19/2017 Fe-59 l.25E+OO 1.68E+OO 5.87E+OO u WG SG-2 414815006 1/19/20 1 7 H-3 4.29E+02 3.8 6E+02 1.19 E+0 3 u WG SG-2 414815006 1/19/20 17 1-1 31 -2.22E+OO l.54 E+OO 4.56E+OO u WG SG-2 414815006 1/19/20 1 7 K-40 4.1 l E-01 1.22E+O I 4.12E+OI u WG SG-2 414815006 1/19/20 1 7 La-1 40 I.O SE-0 2 2.06E+OO 5.14E+OO u W G SG-2 4 1 4815006 1/19/20 I 7 Mn-54 9.24E-OI 8.04 E-O I 2.7 1 E+OO u W G SG-2 414815006 1/19/20 17 Nb-95 3.26E-O I 8.75E-O I 2.89E+OO u W G SG-2 4 1 48 1 5006 1/19/20 17 Ru-1 03 -6.60E-0 1 9.0 I E-0 1 2.85E+OO u WG SG-2 414815006 1/19/20 17 R u-1 06 -7.48E+OO 7.1 4E+OO 2.1 2E+O l u W G SG-2 4 1 4815006 1/19/20 I 7 Sb-1 24 2.24E+OO l.66E+OO 6.04E+OO u WG SG-2 4 1 4815006 1/1 9/20 I 7 Sb-1 25 3.25E-Ol 2.22E+OO 7.52 E+OO u WG SG-2 4 1 4815006 1/19/20 1 7 Se-75 9.49E-O I 1.0I E+OO 3.22E+OO u WG SG-2 4 1 4815006 1/19/20 I 7 Th-228 -2.3 1 E+OO 2.0 9E+O O 5.70 E+OO u WG SG-2 414815006 1/1 9/20 1 7 Z n-65 1.60E+OO l.45 E+OO 4.78E+OO u WG SG-2 4 1 4815006 1/19/20 I 7 Z r-95 -l .4 5E+OO l.55E+OO 4.56E+OO u WG SG-4 4 1 48 1 5007 1/19/20 1 7 Ac-228 1.70E+O I 7.45E+OO 2.28E+O I u WG SG-4 414 8 15007 1/19/20 I 7 Ag-10 8m 4.7 8E-OI 9.04 E-OI 3.1 6E+OO u WG SG-4 41 4815007 1/1 9/20 I 7 Ag-ll Om 1.34E+OO l.56E+OO 5.35E+OO u WG SG-4 414815007 1/19/2017 AL PHA 3.29E-OI l.1 2E+OO 3.62E+OO u WG SG-4 414 8 15007 1/19/20 1 7 Ba-1 40 -l.02E+O I 6.85E+OO l.93E+O I u WG SG-4 414 8 15007 1/1 9/20 1 7 Be-7 l.20E+O I 1.0 I E+O I 3.54E+O I u WG SG-4 414815007 1/19/20 1 7 BETA 5.53E+OO 9.35E-O I 2.42E+OO WG SG-4 4 1 4815007 1/19/20 17 Ce-14 1 -2.52E+OO 2.44E+OO 5.84E+OO u WG SG-4 414815007 1/19/20 1 7 Ce-1 44 -2.9 8E+OO 6.46 E+OO 2. lO E+OI u WG SG-4 4 1 4815007 1/19/20 1 7 Co-57 1. lOE+OO 9.1 5E-O I 3.06E+OO u WG SG-4 414815007 1/19/20 1 7 Co-58 l.62E+OO 1.24E+OO 4.32E+OO u WG SG-4 414815007 1/19/20 1 7 Co-60 -9.99E-O l 1.0 7 E+OO 3.03E+OO u WG SG-4 4 1 4815007 1/19/20 1 7 C r-51 l.29E+O I l.15 E+OI 3.72E+O I u WG SG-4 414815007 1/19/20 1 7 Cs-134 -8.07E-01 1.3 IE+OO 3.96E+OO u D-1 13 Donald C. Cook Nuclea r Plant Annual Radiologic a l Envi r onmental Operating Repo rt 2 0 1 7 SAMPLE E ND CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pC i/L) (pCi/L) WG SG-4 4148 1 5007 1/19/20 1 7 Cs-1 37 l.26E+OO l.36E+OO 4.3 1 E+OO u WG SG-4 414815007 1/19/20 1 7 Fe-59 -5.28E+OO 2.53E+OO 3.28E+OO u WG SG-4 4 1 48 1 5007 1/19/20 1 7 H-3 2.62E+02 3.69E+02 1.1 6E+03 u WG SG-4 4148 1 5007 1/19/20 1 7 1-1 3 1 -J.96E+OO 2.4 1 E+OO 6.98E+OO u WG SG-4 4 1 48 1 5007 1/19/20 I 7 K-40 -9.45E+OO l.9 1 E+O I 5.90E+O I u WG SG-4 4148 1 5007 1/19/20 1 7 La-1 40 2.80E+OO l.79E+OO 6.86E+OO u WG SG-4 4148 1 5007 1/19/20 1 7 M n-54 -9.25E-0 1 I.I OE+OO 3.1 8E+OO u WG SG-4 4 1 48 1 5007 1/19/20 17 N b-95 -1.65E+OO J.28E+OO 3.48E+OO u WG SG-4 414815007 1/19/20 17 R u-1 03 -1.04E+OO 1.1 4E+OO 3.5 1 E+OO u WG SG-4 414815007 1/19/20 17 R u-1 06 l.40E+O I 1.1 2E+O I 3.89E+OI u WG SG-4 4 1 48 1 5007 1/1 9/20 1 7 Sb-1 24 2.87E-O I 3.1 8E+OO l.06E+O I u WG SG-4 4148 1 5007 1/19/20 1 7 Sb-1 25 2.1 6E+OO 3.00E+OO l.05E+OI u WG SG-4 4 1 48 1 5007 1/1 9/20 I 7 Se-75 8.07E-0 1 l.63E+OO 5.30E+OO u WG SG-4 4148 1 5007 1/1 9/20 1 7 T h-228 2.69E+OO 3.69E+OO 6.1 4E+OO u WG SG-4 4148 1 5007 1/19/20 1 7 Z n-65 -2.78E-O I 2.77E+OO 8.22E+OO u WG SG-4 4 1 48 1 5007 1/1 9/20 1 7 Z r-95 6.8 1 E-O I 2.06E+OO 6.93E+OO u WG SG-5 4 1 48 1 5008 1/19/20 1 7 Ac-228 -2.33E+OO 4.84E+OO I.II E+OI u WG SG-5 4 1 48 1 5008 1/1 9/20 1 7 Ag-1 08m 6.20E-0 1 8.0 0E-0 1 2.7 1 E+OO u WG SG-5 4 1 48 1 5008 1/19/20 1 7 Ag-I I Om l.94E-O I l.09E+OO 3.5 1 E+OO u WG SG-5 4 1 48 1 5008 1/1 9/20 1 7 AL P HA 2.55E+OO I .38E+OO 4.1 3E+OO u DL WG SG-5 4 1 48 1 5008 1/19/20 1 7 Ba-1 40 4.24E+OO 4.34E+OO l.47E+OI u WG SG-5 4 1 48 1 5008 11 1 9/20 1 7 Be-7 2.58E+OO 7.76E+OO 2.60E+OI u WG SG-5 4 1 48 1 5008 1 119/20 1 7 BETA 7.1 I E+OO l.02E+OO 2.36E+OO WG SG-5 4 1 48 1 5008 1/19/20 I 7 Ce-1 4 1 7.94E-O I l.69E+OO 5.34E+OO u WG SG-5 4 1 48 1 5008 1/19/20 1 7 Ce-144 6.12E+OO 6.26E+OO l.99E+OI u WG SG-5 4 1 48 1 5008 1/19/20 1 7 Co-57 -l.8 1 E-0 1 8.38E-O I 2.62E+OO u WG SG-5 4 1 48 1 5008 1/19/20 1 7 Co-58 -5.93E-O I 9.82E-O I 2.57E+OO u WG SG-5 4 1 48 1 5008 1/19/20 1 7 Co-60 l.68E-OI 9.44E-O I 3.1 9E+OO u WG SG-5 4 1 48 1 5008 1/1 9/20 1 7 Cr-5 1 6.I OE+OO 8.48E+OO 2.89E+OI u WG SG-5 4 1 48 1 5008 1/19/20 1 7 Cs-1 34 2.22E-O I 9.72E-O I 3.1 6E+OO u WG SG-5 4 1 48 15 008 1/19/20 1 7 Cs-1 37 -8.65E-OI 8.38E-OI 2.4 1 E+OO u WG SG-5 4 1 48 1 5008 1/19/20 1 7 Fe-59 -l.80E-0 1 l.75E+OO 5.86E+OO u WG SG-5 4 1 48 1 5008 1/19/20 1 7 H-3 8.26E+O I 3.6 7 E+02 l.1 9E+03 u WG SG-5 4 1 48 1 5008 1/1 9/20 1 7 1-1 3 1 7.84E-O I l.60E+OO 5.44E+OO u WG SG-5 4 1 4815008 1/1 9/20 1 7 K-40 -I .36E+O I J.20E+O I 3.82E+OI u WG SG-5 4 1 48 1 5008 1/19/20 1 7 L a-1 40 -2.06E+O O l.53E+OO 3.93E+OO u WG SG-5 4148 1 5008 1/19/20 1 7 M n-54 -3.0SE-02 7.98E-O I 2.54E+OO u WG SG-5 4 1 48 1 5008 1/1 9/20 1 7 Nb-95 -9.88E-O I 8.96E-O I 2.52E+OO u WG SG-5 4 1 48 1 5008 1/1 9/20 1 7 R u-1 03 9.49E-O I 9.54E-O I 2.95E+OO u WG SG-5 4 1 48 1 5008 1/19/20 1 7 Ru-1 06 8.62E-O I 8.1 7E+OO 2.67E+OI u WG SG-5 4 1 48 1 5008 1/1 9/20 1 7 S b-1 24 1.4 1 E+OO 2.38E+OO 7.39E+OO u WG SG-5 4148 1 5008 1/19/20 1 7 Sb-1 25 2.7 1 E+OO 2.25E+OO 7.65E+OO u WG SG-5 4 1 48 1 5008 1/19/20 1 7 Se-75 5.22E-O I l.09E+OO 3.75E+OO u WG SG-5 4 1 48 1 5008 1/19/20 1 7 T h-228 I .47E+OO 2.47E+OO 6.37E+OO u WG SG-5 4 1 48 1 5008 1/19/20 1 7 Z n-65 -8.27E-O I 2.04E+OO 5.74E+OO u WG SG-5 4 1 48 1 5008 1/19/20 I 7 Zr-95 8.96E-OI l.59E+OO 5.28E+OO u WG OW-4 4 1 7824001 3/2/20 1 7 Ac-228 -J.17E+O I 5.85E+OO l.59E+OI u WG OW-4 4 1 782400 1 3/2/20 1 7 Ag-1 08m -8.1 9E-O I 1.1 2E+OO 3.46E+OO u WG OW-4 4 1 782400 1 3/2/20 1 7 Ag-I I Om -6.72E-O I I.65E+OO 5.35E+OO u WG OW-4 4 1 782400 1 3/2/20 1 7 Ba-1 40 l.59E+OO 5.43E+OO l.82E+OI u D-1 1 4 Donald C. Cook Nuclear Pl an t Annu a l Radiological Environmental Operating Report 2017 S AMP LE E ND CONC ST D.D E V. MDC FL A GS TYPE STATIO N LSN D ATE NUCL ID E (p C i/L) (p C i/L) (pCi/L) WG OW-4 4 1 782400 1 3/2/20 1 7 Be-7 4.49£+00 1.07£+0 1 3.6IE+O I u WG OW-4 41782400 1 3/2/20 1 7 Ce-1 4 1 -2.8 1 E+OO 2.4IE+OO 6.47£+00 u WG OW-4 41782400 1 3/2/20 1 7 C e-1 44 4.52E+OO 7.38£+00 2.40£+0 1 u WG OW-4 41782400 1 3/2/20 1 7 C o-S7 6.00E-02 1.03£+00 3.30£+00 u WG OW-4 41782400 1 3/2/20 1 7 C o-S8 -2.1 9£-02 1.20£+0 0 3.80£+00 u WG OW-4 41782400 1 3/2/20 17 C o-60 1.1 2£+00 1.25£+00 4.47E+OO u WG OW-4 4 1 782400 1 3/2/20 1 7 C r-S I 7.55£+00 9.95£+00 3.46£+0 1 u WG OW-4 4 1 782400 1 3/2/20 17 Cs-1 34 4.1 7£-01 1.1 5£+0 0 3.8 1£+00 u WG OW-4 41782400 1 3/2/20 1 7 Cs-1 37 -1.5 1£+00 1.32 E+OO 3.60E+OO u WG OW-4 4 1 782400 1 3/2/20 1 7 F e-S9 -l.62 E+OO 2.33£+00 7.03£+0 0 u WG OW-4 4 1 782400 1 3/2/20 17 H-3 7.03£+02 4.79£+02 1.45£+03 u WG OW-4 4 1 782400 1 3/2/20 17 1-1 3 1 3.62E+OO 2.27£+0 0 7.73£+00 u WG OW-4 4 1 782400 1 3/2/20 1 7 K-4 0 1.44£+0 1 l.94 E+O l 2.95 E+O I u WG OW-4 4 1 782400 1 3/2/20 1 7 La-1 40 5.1 8£-01 l.88 E+OO 6.3IE+OO u WG OW-4 4 1 782400 1 3/2/20 17 Mn-S4 9.58£-0 1 1.1 l E+OO 3.97£+00 u WG OW-4 4 1 782400 1 3/2/20 1 7 Nb-9S -1.1 5 E+OO l.36 E+OO 3.87E+OO u WG OW-4 4 1 782400 1 3/2/20 1 7 R u-I 03 1.06£-02 1.1 8£+0 0 3.89E+OO u WG OW-4 4 1 782400 1 3/2/20 1 7 Ru-I 06 -9.67E+OO 1.05£+0 1 3.0 I E+OI u WG OW-4 4 1 782400 1 3/2/20 1 7 Sb-1 24 l.94 E+OO 3.1 7£+00 1.l OE+O I u WG OW-4 4 1 782400 1 3/2/20 1 7 Sb-1 2S -3.22£+00 3.52£+00 1.07£+0 1 u WG OW-4 4 1 782400 1 3/2/20 1 7 S e-7S -l.24E+OO 1.4 1£+0 0 4.47£+00 u WG OW-4 4 1 782400 1 3/2/20 17 T h-228 5.8 0£+00 3.1 6£+0 0 6.34E+OO u WG OW-4 4 1 782400 1 3/2/20 1 7 Z n-6S -4.98£-0 1 2.07£+0 0 5.75£+00 u WG OW-4 4 1 7 8 2400 1 3/2/20 1 7 Z r-9S -2.77£-0 1 l.74 E+OO 5.42E+OO u WG W-11 4 1 7824002 3/2/20 1 7 Ac-228 9.93E-0 1 4.07 E+O O 1.47E+O I u WG W-1 1 4 1 7824002 3/2/20 17 A g-1 08 m -3.08 E-O l 8.50 E-O l 2.48E+OO u W G W-1 1 4 1 7824002 3/2/20 1 7 Ag-l!O m l.89E+OO 3.1 5 E+OO 4.94E+OO u W G W-1 1 4 1 7824002 3/2/20 17 B a-1 40 5.20 E+OO 4.5 1 E+OO l.59E+O I u W G W-11 4 1 7824002 3/2/20 17 B e-7 -4.57E+OO 9.03 E+O O 2.92E+O I u W G W-11 4 1 7824002 3/2/20 1 7 C e-1 41 -l.33E+OO l.80 E+OO 5.53E+OO u W G W-11 4 1 7824002 3/2/20 1 7 Ce-1 44 4.23£+00 6.75 E+OO 2.23E+O I u W G W-11 4 1 7824002 3/2/20 1 7 Co-S7 2.1 2E+OO I .46 E+OO 2.52E+O O u W G W-11 4 1 7824002 3/2/20 1 7 Co-S8 -8.23£-0 1 8.75 E-O l 2.44E+OO u W G W-11 4 1 7824002 3/2/20 1 7 C o-60 -2.94E+OO l.34 E+OO 2.84E+O O u W G W-11 4 1 7824002 3/2/20 1 7 C r-S I -l.44 E+OO 8.8 1 E+OO 3.00E+O I u W G W-11 4 1 7824002 3/2/20 1 7 Cs-134 -1.69E+OO l.32 E+O O 2.95E+OO u W G W-11 4 1 7824002 3/2/20 1 7 Cs-1 3 7 -9.00 E-03 l.02 E+OO 3.37£+00 u W G W-1 1 4 1 7824002 3/2/20 1 7 Fe-S9 1.1 3 E+OO 2.25 E+O O 7.50E+OO u W G W-1 1 4 1 78 2 400 2 3/2/20 1 7 H-3 7.88 E+02 4.85 E+02 l.45E+03 u W G W-11 4 1 7824002 3/2/20 1 7 1-1 3 1 -6.8 1£-01 l.69 E+OO 5.6 1£+0 0 u WG W-1 1 417824002 3/2/20 1 7 K-40 -l.8 1 E+O l l.50 E+O I 5.02£+0 1 u WG W-1 1 4 1 7824002 3/2/20 1 7 La-1 40 -2. I 7 E+OO l.66 E+OO 4.1 5 E+OO u W G W-11 417824002 3/2/20 17 M n-S4 1.1 2 E+OO 9.03 E-O I 3.20 E+OO u WG W-11 4 1 7824002 3/2/20 1 7 N b-95 -4. 1 4£-0 1 1.3 I E+OO 3.67E+OO u WG W-11 41782400 2 3/2/20 1 7 Ru-1 03 -1.1 5 E+OO 9.86 E-O l 2.88E+OO u WG W-11 4 1 78 2 400 2 3/2/20 17 R u-1 06 2.74 E+OO 8.65 E+OO 2.94E+O I u WG W-1 1 4 1 7824002 3/2/20 1 7 Sb-1 24 2.63E+OO 2.26 E+O O 8.48E+OO u WG W-11 4 1 782400 2 3/2/20 1 7 Sb-1 25 2.51 E+OO 2.64 E+OO 9.28E+OO u WG W-1 1 4 1 7824002 3/2/20 1 7 Se-7S 1.34E+O O l.34 E+O O 4.37£+00 u WG W-11 4 1 78 2 4002 3/2/20 1 7 T h-2 28 3.23 E+OO 3.0 l E+OO 6.1 l E+OO u D-1 1 5 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE E ND CONC STD.D E V. MDC FLAGS TYPE STATION LSN DATE NUCL ID E (pCi/L) (pCi/L) (pCi/L) WG W-11 4 1 7824002 3/2/20 17 Z n-65 2.4 1 E+OO l.57E+OO 5.70E+OO u WG W-11 4 1 7824002 3/2/20 1 7 Z r-95 l.02E+OO l.67E+OO 5.7 6E+OO u WG W-1 42000 1 00 1 4/3/20 1 7 Ac-228 -3.38E-O I 6.37E+OO 2.08E+O I u WG W-1 42000 1 00 1 4/3/20 1 7 Ag-1 08m l.50E+OO 1.I OE+OO 3.78 E+OO u WG W-1 42000 1 00 1 4/3/20 1 7 Ag-I I Om 8.72E-01 l.58E+OO 5.53E+OO u WG W-1 42000 1 00 1 4/3/20 1 7 Ba-140 l.1 2E+O I 7.03E+OO 2.42E+O I u WG W-1 42000 1 00 1 4/3/20 17 Be-7 -2.96E-O I l.06E+O I 3.43E+O I u WG W-1 42000 1 00 1 4/3/20 1 7 Ce-1 4 1 -7.3 1 E-0 1 2.72E+OO 7.69E+OO u WG W-1 42000 1 00 1 4/3/20 1 7 Ce-1 44 -1.49E+O I 8.92E+OO 2.32E+OI u WG W-1 42000 1 00 1 4/3/20 1 7 Co-57 -1.77E+OO 1.3 I E+OO 3.66E+OO u WG W-1 42000 1 00 1 4/3/20 1 7 Co-58 -l.04E+OO l.22E+OO 3.64 E+OO u WG W-1 42000 1 00 1 4/3/20 1 7 Co-60 6.45E-O I 1.1 5E+OO 3.99E+OO u WG W-1 42000 1 00 1 4/3/20 1 7 Cr-5 1 2.90E+O I 2.0 I E+O I 3.77E+O I u WG W-1 42000 1 00 1 4/3/20 1 7 Cs-1 34 7.1 7E-O I 1.5 I E+OO 5.24E+OO u WG W-1 42000 1 00 1 4/3/20 1 7 Cs-137 -l.33E+OO l.3 1 E+OO 3.93E+OO u WG W-1 42000 1 00 1 4/3/20 1 7 Fe-59 8.1 3E+OO 2.90E+OO l.02E+O I u WG W-1 42000 1 001 4/3/20 1 7 H-3 2.90 E+02 3.69E+02 l.1 6E+03 u WG W-1 42000 1 00 1 4/3/20 1 7 1-13 1 -2.83E+OO 2.60E+OO 7.66E+OO u WG W-1 42000 1 00 1 4/3/20 1 7 K-40 6.78E+OO l.60E+O I 5.3 1 E+O I u WG W-1 42000 1 00 1 4/3/20 1 7 La-1 40 1.1 7E+OO 1.95E+OO 7.06E+OO u WG W-1 42000 1 001 4/3/20 1 7 Mn-54 8.45E-03 1.06E+OO 3.55E+OO u WG W-1 42000 1 00 1 4/3/20 1 7 Nb-95 2.72E+OO 2.09E+OO 4.6 1 E+OO u WG W-1 42000 1 00 1 4/3/20 1 7 R u-1 03 -5.61E-02 l.39E+OO 4.47E+OO u WG W-1 42000 1 00 1 4/3/20 17 R u-1 06 -3.42E+OO 9.7 1 E+OO 2.94E+OI u WG W-1 42000 1 001 4/3/20 17 S b-1 24 2.36E+OO 3.3 I E+OO l.1 9E+OI u WG W-1 42000 1 00 1 4/3/20 1 7 Sb-1 25 4.89E+OO 3.92E+OO l.24E+OI u WG W-1 42000 1 00 1 4/3/20 1 7 Se-75 2.34E+OO l.73E+OO 5.94E+OO u WG W-1 42000 1 00 1 4/3/20 1 7 Th-228 -1.51 E+OO 2.85E+OO 9.76E+OO u WG W-1 42000 1 00 1 4/3/20 17 Z n-65 -3.25E+OO 2.65E+OO 6.89E+OO u WG W-1 42000 1 001 4/3/20 1 7 Z r-95 -2.67E+OO 2.39E+OO 6.9 1 E+OO u WG W-8 42000 1 005 4/3/20 1 7 Ac-228 -1.II E+O I 8.93E+OO 2.58E+O I u WG W-8 42000 1 005 4/3/20 1 7 Ag-1 08m 8.0 I E-01 l.56E+OO 5.1 2E+OO u WG W-8 42000 1 005 4/3/20 1 7 Ag-I I Om 2.28E+OO 3.27E+OO 7.32E+OO u WG W-8 42000 1 005 4/3/20 1 7 Ba-1 40 l.76E+O I 9.44E+OO 3.1 5E+OI u WG W-8 42000 1 005 4/3/20 1 7 Be-7 4.34E+OO l.59E+O I 5.1 7E+OI u WG W-8 42000 1 005 4/3/20 1 7 Ce-1 4 1 3.44E+OO 2.48E+OO 8.0I E+OO u WG W-8 42000 1 005 4/3/20 1 7 Ce-1 44 -l.2 1 E+OO 8.70E+OO 2.8 1 E+O I u WG W-8 42000 1 005 4/3/20 1 7 Co-57 -2.02E-O I l.03E+OO 3.3 1 E+OO u WG W-8 42000 1 005 4/3/20 1 7 Co-58 4.22 E-01 l.79E+OO 6.1 I E+OO u WG W-8 42000 1 005 4/3/20 1 7 Co-60 5.47E-O I l.96E+OO 5.93E+OO u WG W-8 42000 1 005 4/3/20 1 7 Cr-51 7.98E+OO l.52E+O I 4.98E+OI u WG W-8 42000 1 005 4/3/2 01 7 Cs-1 34 4.44E+OO 2.32E+OO 8.0I E+OO u WG W-8 42000 1 005 4/3/20 1 7 Cs-1 37 -1.1 5E+OO l.98E+OO 6.37E+OO u WG W-8 42000 1 005 4/3/20 1 7 Fe-59 -5.99E-O I 3.68E+OO l.2 1 E+OI u WG W-8 42000 1 005 4/3/20 1 7 H-3 -3.05E+02 3.49E+02 l.20E+03 u WG W-8 42000 1 005 4/3/20 1 7 1-1 31 -l.66E+OO 3.30E+OO l.03E+OI u WG W-8 42000 1 005 4/3/20 1 7 K-40 -l.99E+O I 2.1 9E+O I 6.45E+O I u WG W-8 42000 1 005 4/3/20 1 7 L a-1 40 9.SOE-0 1 2.60E+OO 9.09E+OO u WG W-8 42000 1 005 4/3/20 1 7 M n-54 3.30E+OO l.94E+OO 6.77E+OO u WG W-8 42000 1 005 4/3/20 1 7 Nb-95 5.64 E-O I l.88E+OO 6.46E+OO u D-116 Donald C. Cook Nuclear Plant Annua l Radiological Environmental Operating Report 2017 SAMPLE E ND C O NC ST D.D E V. MDC FLAGS TYPE STATION LSN DATE NUCL ID E (pCi/L) (pCi/L) (pCi/L) WG W-8 42000 1 005 4/3/20 1 7 Ru-1 03 -6.42E-Ol l.65E+OO 5.1 I E+OO u WG W-8 42000 1 005 4/3/20 1 7 R u-10 6 5.96E+OO l.59E+O l 5.48E+O I u WG W-8 42000 1 005 4/3/20 1 7 S b-1 24 -3.25E+OO 4.55E+OO 1.34E+O l u WG W-8 42000 1 005 4/3/20 1 7 Sb-1 25 -3.66E+OO 4.87E+OO 1.47E+Ol u WG W-8 42000 1 005 4/3/20 1 7 Se-75 -l.82E+OO 2.02E+OO 6.09E+OO u WG W-8 42000 1 005 4/3/20 1 7 Th-228 l.66E+OI 6.66E+OO l.I OE+O l Ul WG W-8 42000 1 005 4/3/20 1 7 Z n-65 -3.3 0 E+OO 3.83E+O O 1.1 5E+O l u WG W-8 42000 1 005 4/3/20 1 7 Z r-95 8.53E-Ol 2.60E+OO 9.00E+OO u WG W-10 42000 1 007 4/3/20 1 7 Ac-228 -9.83E+OO 5.6 1 E+OO I .30E+Ol u WG W-10 420001007 4/3/20 1 7 Ag-1 08 m -6.9 1 E-0 1 8.8 1 E-0 1 2.79E+OO u WG W-1 0 420001007 4/3/20 17 Ag-ll Om 7.07E-Ol l.26E+OO 4.32E+O O u WG W-10 42000 1 007 4/3/20 1 7 Ba-1 40 2.37E+OO 5.50E+O O l.89E+O l u WG W-1 0 42000 1 007 4/3/20 1 7 Be-7 -4.74E+OO 8.03E+OO 2.57E+Ol u WG W-10 42000 1 007 4/3/20 1 7 Ce-1 41 -2.8 1 E+OO 2.1 7E+OO 6.29E+O O u WG W-10 42000 1 007 4/3/20 1 7 Ce-1 44 5.7 1 E+OO 7.4 1 E+OO 2.43E+O l u WG W-10 42000 1 007 4/3/20 1 7 Co-57 -l .23E+OO l.02E+OO 2.98 E+OO u WG W-1 0 42000 1 007 4/3/20 1 7 Co-58 -4.22E-O l 9.66E-O l 3.0IE+OO u WG W-10 42000 1 007 4/3/20 1 7 Co-60 l.04E+OO 8.68E-O l 3.1 5E+OO u WG W-1 0 42000 1 007 4/3/20 1 7 C r-5 1 4.1 9E+OO 9.37E+OO 3.28E+O I u WG W-1 0 42000 1 007 4/3/20 1 7 Cs-1 34 2.60E-O I 1.48E+OO 4.29E+O O u WG W-1 0 42000 1 007 4/3/20 1 7 Cs-137 -1.64E+OO l.2 7E+OO 3.05E+OO u WG W-1 0 42000 1 007 4/3/20 1 7 Fe-59 -2.56E-OI l.55E+OO 4.84E+OO u W G W-10 420001007 4/3/20 1 7 H-3 7.59E+O l 3.67E+02 I.20E+0 3 u W G W-1 0 42000 1 007 4/3/20 1 7 1-1 3 1 4.23E+OO 2.20E+OO 7.47E+OO u W G W-1 0 42000 1 007 4/3/20 1 7 K-40 l.22E+OO I.40E+O I 5.53E+OI u W G W-10 420001007 4/3/20 1 7 La-1 40 -4.1 7E-O l 1.76E+OO 5.73E+O O u WG W-1 0 420001007 4/3/20 1 7 Mn-54 -3.82E-OI 9.65 E-O I 2.64E+OO u WG W-10 42000 1 007 4/3/20 1 7 Nb-95 -I.54E-Ol 1.1 3E+OO 3.68E+OO u WG W-1 0 420001007 4/3/20 17 R u-1 03 -l.54E+OO l.1 3E+OO 3.25E+OO u WG W-1 0 42000 1 007 4/3/20 17 R u-1 06 l.0 7 E+O l 9.44E+OO 3.06E+Ol u WG W-10 420001007 4/3/20 1 7 Sb-1 24 3.42E+OO 2.65E+OO 9.78E+O O u WG W-10 420001007 4/3/20 1 7 Sb-1 25 -l.86E+OO 2.53E+OO 8.04E+O O u WG W-1 0 42000 1 007 4/3/20 1 7 Se-75 2.04E+OO 1.51 E+O O 4.87E+O O u WG W-1 0 42000 1 007 4/3/20 1 7 Th-228 6.32E+OO 4.07E+OO 7.83 E+OO u WG W-1 0 42000 1 007 4/3/20 1 7 Z n-65 -6.40E-O l 2.02E+OO 6.22E+O O u WG W-1 0 420001007 4/3/20 1 7 Zr-95 -2.1 8E+OO l.85 E+OO 5.1 6E+OO u WG W-1 1 42000 1 008 4/3/20 1 7 Ac-228 9.93E+OO 5.73E+OO l.70E+O l u WG W-1 1 42000 1 008 4/3/20 1 7 Ag-108 m -l.95E+OO 9.4 1 E-0 1 2.29E+OO u WG W-1 1 420001008 4/3/20 1 7 Ag-ll Om -1.03E+OO 1.1 9E+OO 3.33 E+OO u WG W-11 4 2000 1 008 4/3/20 1 7 Ba-1 40 -2.86E+OO 4.37E+OO 1.35E+O I u WG W-1 1 420001008 4/3/20 1 7 Be-7 -3.4 1 E+OO 7.06 E+OO 2.26 E+O l u WG W-1 1 42000 1 008 4/3/20 1 7 Ce-14 1 -8.56E-O l l.68E+OO 5.26E+OO u WG W-1 1 42000 1 008 4/3/20 1 7 Ce-144 9.5 5 E+OO 6.38E+OO 2.IOE+O l u WG W-1 1 420001008 4/3/20 1 7 Co-57 4.66E-01 7.66E-O l 2.55E+OO u WG W-1 1 42000 1 008 4/3/20 1 7 Co-58 -4.78E-O l 9.1 2E-O l 2.76E+OO u WG W-11 42000 1 008 4/3/20 1 7 Co-60 -9.88E-0 1 l.1 7E+OO 3.52E+OO u WG W-11 42000 1 008 4/3/20 1 7 C r-5 1 -8.4 1 E+OO 8.03E+OO 2.49E+Ol u WG W-11 42000 1 008 4/3/20 1 7 Cs-1 34 -8.85E-O I 9.43E-O I 2.63E+OO u WG W-11 42000 1 008 4/3/20 1 7 Cs-1 37 l.08E+OO 9.57E-O l 3.38E+OO u WG W-1 1 42000 1 008 4/3/20 17 Fe-59 -6.27E-OI l.83E+OO 5.52E+O O u D-1 17 Donald C. Cook Nuclea r Plant Annual Radiological Env i ronmental Operating Report 2 017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DAT E NUCLlDE (pCi/L) (pC i/L) (pCi/L) WG W-1 1 42000 10 08 4/3/20 17 H-3 2.20E+02 3.63E+02 1.1 6E+03 u WG W-11 42000 1 008 4/3/20 1 7 1-13 1 l.38E+OO 1.76E+OO 6.2 1 E+OO u WG W-11 42000 1 008 4/3/20 1 7 K-40 -8.27E+OO l.30E+O l 4.60E+O l u WG W-11 420001008 4/3/20 1 7 La-1 40 4.70E-0 1 1.84 E+OO 6.3 1 E+OO u WG W-11 420001008 4/3/20 1 7 Mn-54 -3.70 E-01 1.24E+OO 3.58E+OO u WG W-11 42000 1 008 4/3/20 1 7 Nb-95 -2.1 4E-0 1 1.08 E+OO 3.46E+OO u WG W-11 42000 1 008 4/3/20 1 7 Ru-1 03 -4.78E-0 1 I.Ol E+OO 3.26E+OO u WG W-11 42000 1 008 4/3/2017 Ru-10 6 -l.68E+OO 7.42E+OO 2.40E+O l u WG W-11 420001008 4/3/20 1 7 Sb-1 24 -2.12 E+OO 2.94E+OO 8.72E+OO u WG W-11 420001008 4/3/20 1 7 Sb-1 25 7.34E-01 2.35E+OO 8.1 IE+OO u WG W-11 42000 1 008 4/3/20 1 7 Se-75 -2.87E-O l l.24 E+OO 3.84E+OO u WG W-11 42000 1 008 4/3/20 1 7 T h-228 8.1 2E-02 2.53E+OO 7.03E+OO u WG W-1 1 42000 1 008 4/3/20 1 7 Z n-65 3.98E-0 1 l.99E+OO 6.50E+O O u WG W-11 42000 1 008 4/3/20 1 7 Z r-95 -4.62 E-O I 1.44E+OO 4.5 1 E+OO u WG W-3 42000 1 003 4/4/20 1 7 Ac-228 7.83 E+OO 5.73E+OO l.88E+OI u WG W-3 42000 1 003 4/4/20 1 7 Ag-1 08m -1.76E-O 1 9.70E-OI 3.24E+OO u WG W-3 420001003 4/4/2017 A g-I I Om -5.S I E-01 l.60 E+OO 4.95E+OO u WG W-3 42000 1 003 4/4/20 1 7 Ba-1 40 9.04E+OO 5.36E+OO l.82E+Ol u WG W-3 420001003 4/4/20 1 7 Be-7 2.55E+OO 9.85E+OO 3.37E+Ol u WG W-3 420001003 4/4/20 1 7 Ce-1 41 -3.59E+OO 2.I OE+OO 5.70 E+OO u WG W-3 42000 1 003 4/4/20 1 7 Ce-144 7.85 E+OO 7.67E+OO 2.56E+OI u WG W-3 42000 1 003 4/4/20 1 7 Co-57 -6.75E-0 1 9.58E-0 1 3.0 I E+OO u WG W-3 42000 1 003 4/4/20 1 7 Co-58 -1.07E+OO 1.1 4E+OO 3.2 1 E+OO u WG W-3 42000 1 003 4/4/20 1 7 Co-60 -7.97E-0 1 8.9 1 E-OI 2.44E+OO u WG W-3 42000 1 003 4/4/20 1 7 C r-5 1 -4.33E+O O 1.0 8E+O I 3.26E+O I u WG W-3 42000 10 03 4/4/20 1 7 Cs-1 34 l.63E+OO I.19 E+OO 4.02 E+OO u WG W-3 42000 1 003 4/4/20 1 7 Cs-137 -1.SI E+O O 1.17 E+OO 3.1 6E+OO u WG W-3 42000 1 003 4/4/20 1 7 Fe-59 -2.60E+OO 2.1 8E+OO 5.72E+OO u WG W-3 420001003 4/4/20 1 7 H-3 3.1 5E+02 3.77E+02 I.1 9E+03 u WG W-3 420001003 4/4/20 1 7 1-1 3 1 1.54E+OO 1.77 E+OO 5.82 E+OO u WG W-3 42000 1 003 4/4/2017 K-40 3.83E+OO 2.00E+O l 4.99E+OI u WG W-3 420001003 4/4/20 1 7 La-140 2.1 5E+OO I.6 1 E+OO 6.18 E+OO u WG W-3 42000 1 003 4/4/20 17 Mn-54 5.56E-O I 1.19 E+OO 4.0I E+OO u WG W-3 42000 1 003 4/4/2017 Nb-95 -2.88 E+OO l.33E+OO 2.66E+OO u WG W-3 42000 1 003 4/4/20 17 Ru-1 03 -1.09E+OO 1.04E+OO 3.07E+OO u WG W-3 42000 1 003 4/4/20 1 7 Ru-1 06 -1.76E+O I 1.0 2E+O I 2.47 E+O I u WG W-3 42000 1 003 4/4/2017 Sb-1 24 -4. I OE-02 2.06E+OO 6.75E+OO u WG W-3 42000 1 003 4/4/20 1 7 Sb-1 25 6.86E-O I 2.90E+OO 9.98E+OO u WG W-3 42000 1 003 4/4/20 1 7 Se-75 -1.1 6E+OO l.54 E+OO 4.55 E+OO u WG W-3 420001003 4/4/2017 Th-228 5.91E+OO 4.1 9E+OO 8.56E+OO u WG W-3 420001003 4/4/20 1 7 Z n-65 l.83E+OO I.76E+O O 6.22E+OO u WG W-3 420001003 4/4/20 1 7 Z r-95 2.92E+OO 1.82 E+OO 6.59E+OO u WG W-7 42000 1 004 4/4/20 1 7 Ac-228 -I.29E+O I 6.09E+OO l.50E+OI u WG W-7 42000 1 004 4/4/20 17 A g-1 08m -I.42 E+O O 9.89£-0 1 2.26E+OO u WG W-7 42000 1 004 4/4/20 1 7 Ag-I I Om -1.22 E+OO 1.60 E+OO 4.96E+OO u WG W-7 42000 1 004 4/4/20 1 7 Ba-1 40 -3.0 IE+OO 5.1 4£+00 1.57E+Ol u WG W-7 42000 1 004 4/4/20 1 7 Be-7 1.06E+OI l.02E+OI 3.50E+Ol u WG W-7 420001004 4/4/20 1 7 Ce-1 4 1 -l .04E-O I 2.38E+OO 7.1 9 E+OO u WG W-7 4 2000 1 004 4/4/2017 Ce-1 44 1.70E+O I 8.75E+OO 2.75E+OI u WG W-7 4 2000 1 004 4/4/20 1 7 Co-57 1.30E+OO 2.00E+OO 3.66E+OO u D-118 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pC i/L) WG W-7 42000 1 004 4/4/20 1 7 Co-58 9.26E-OI l.04 E+OO 3.72E+OO u WG W-7 42000 1 004 4/4/20 1 7 Co-60 l.93E+OO 1.12 E+OO 4.15E+OO u WG W-7 420001004 4/4/20 1 7 C r-5 1 8.66E+OO 1.03E+O I 3.57E+O I u WG W-7 42000 1 004 4/4/20 1 7 Cs-134 -1.14 E-OI 1.36E+OO 4.27E+OO u WG W-7 42000 1 004 4/4/20 1 7 Cs-137 9.40E-OI 1.1 3E+OO 3.86E+OO u WG W-7 420001004 4/4/2017 Fe-59 2.49E+OO 2.08E+OO 7.07 E+OO u WG W-7 42000 1 004 4/4/20 1 7 H-3 5.56E+02 3.87E+02 1.18E+03 u WG W-7 420001004 4/4/20 1 7 1-131 -2.19 E+OO 2.14E+OO 6.54 E+OO u WG W-7 420001004 4/4/20 1 7 K-40 -6.08E+OO 1.84 E+O I 5.63 E+O l u WG W-7 420001004 4/4/20 1 7 La-1 40 -l.06 E+OO l.88E+OO 5.48E+OO u WG W-7 420001004 4/4/20 1 7 Mn-54 I .42E+OO l.0 6E+OO 3.58E+OO u WG W-7 420001004 4/4/20 1 7 Nb-95 1.49 E-OI 1.27 E+OO 4.07E+OO u WG W-7 420001004 4/4/20 1 7 Ru-103 -2.80E-02 1.37 E+OO 4.0lE+OO u WG W-7 420001004 4/4/2017 Ru-1 06 5.95E+OO 1.00 E+OI 3.39E+OI u WG W-7 420001004 4/4/20 1 7 S b-1 24 -2.97E+OO 2.85 E+OO 7.21E+OO u WG W-7 420001004 4/4/2017 Sb-1 25 5.29E+OO 3.42E+OO l.04E+OI u WG W-7 420001004 4/4/20 1 7 Se-75 -6.80E-01 1.48 E+OO 4.92E+OO u WG W-7 420001004 4/4/2017 Th-228 3.88E+OO 4.42E+OO 6.8 1 E+OO u WG W-7 420001004 4/4/20 1 7 Zn-65 3.58E+OO 2.33E+OO 8.0IE+OO u W G W-7 420001004 4/4/20 1 7 Z r-95 -2.22E+OO 1.98E+OO 5.24E+OO u W G W-13 4200010 1 0 4/4/2017 Ac-228 2.6 1 E-02 7.79 E+OO l.33E+OI u W G W-1 3 420001010 4/4/20 1 7 Ag-108m 4.04E-OI 9.25E-O I 3.19 E+OO u W G W-1 3 4200010 10 4/4/20 1 7 Ag-l l Om -2.04E+OO l.54 E+OO 3.88E+OO u W G W-1 3 4 2 0001010 4/4/20 1 7 Ba-140 -5.41E+OO 5.55 E+OO 1.6 4 E+O I u W G W-13 420001010 4/4/2017 Be-7 9.02E+OO 9.49E+OO 3.31E+O l u W G W-1 3 4200010 10 4/4/2017 Ce-1 41 -1.92 E+OO 2.04 E+OO 6.08E+OO u W G W-1 3 420001010 4/4/20 1 7 Ce-1 44 -7.32E-01 8.12 E+OO 2.60E+O l u W G W-13 420001010 4/4/20 1 7 C o-57 8.09E-01 1.04 E+OO 3.4 5 E+OO u W G W-13 420001010 4/4/20 1 7 Co-58 -1.80 E+OO l.19 E+OO 2.21E+OO u WG W-1 3 420001010 4/4/20 1 7 Co-60 4.22E-OI l.09E+OO 3.79E+OO u WG W-1 3 420001010 4/4/20 1 7 C r-51 2.66E+Ol l.60 E+Ol 3.24E+Ol u WG W-13 420001010 4/4/20 1 7 Cs-134 -9. I SE-01 l.15E+OO 3.30E+OO u WG W-13 420001010 4/4/2017 C s-137 l.49E-01 l.13 E+OO 3.75E+OO u WG W-13 420001010 4/4/20 1 7 Fe-59 -3.09E+OO 2.1 6E+OO 5.68E+OO u WG W-13 4200010 10 4/4/20 1 7 H-3 5.92E+02 3.97E+02 l.20E+03 u WG W-1 3 4200010 1 0 4/4/20 1 7 1-13 1 3.32E-01 l.8 6E+OO 6.38 E+OO u WG W-1 3 420001010 4/4/2017 K-40 -2.67E+Ol 1.5 l E+O l 4.38E+Ol u WG W-1 3 4200010 10 4/4/20 1 7 La-140 -1.00 E+OO l.44E+OO 4.07E+OO u WG W-13 420001010 4/4/2017 Mn-54 -l.72 E+OO l.51 E+OO 3.53 E+OO u WG W-1 3 4200010 10 4/4/20 1 7 Nb-95 -l.73 E+OO l.54 E+OO 4.13 E+OO u WG W-1 3 420001010 4/4/20 1 7 Ru-10 3 -8.0SE-01 l.0 2E+OO 3.1 l E+OO u WG W-13 420001010 4/4/2017 Ru-I 06 -l.32 E+O l 1.04 E+O l 2.84E+Ol u WG W-13 420001010 4/4/20 1 7 Sb-1 24 2.42E-01 2.54 E+OO 8.45 E+OO u WG W-1 3 420001010 4/4/20 17 Sb-1 25 4.90E-01 3.07 E+OO 1.04 E+O I u WG W-13 4200010 10 4/4/20 1 7 Se-75 3.55E-O I l.5 9E+OO 5.00 E+OO u WG W-13 420001010 4/4/20 1 7 T h-228 9.36£-01 3.06E+OO 7.76E+OO u WG W-13 4200010 1 0 4/4/2017 Zn-65 1.52E+OO 1.89E+OO 6.37E+OO u WG W-13 420001010 4/4/2017 Z r-95 -1.45E+OO 2.17 E+OO 6.49 E+OO u WG W-14 4200010 1 1 4/4/2017 Ac-228 -6.27E+OO 5.38E+OO l.4 9E+O I u WG W-14 42000101 1 4/4/2017 Ag-10 8m 2.35E-01 l.04 E+OO 3.52E+OO u D-1 19 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WG W-1 4 42000 1 011 4/4/20 17 Ag-I I Om -3.24E+OO l.78E+OO 4.30E+OO u WG W-14 42000 1 011 4/4/20 1 7 Ba-1 40 6.38E+OO 6.06E+OO 2.1 2E+OI u WG W-14 42000 1 0 11 4/4/20 1 7 Be-7 -3.45 E+OO 1.06E+O I 3.42E+OI u WG W-14 42000 1 011 4/4/20 1 7 Ce-141 3.61 E-0 1 2.24E+OO 7.26E+OO u WG W-14 42000 1 0 11 4/4/20 1 7 Ce-144 1.22 E+O I 9.02E+OO 2.96E+OI u WG W-14 42000 1 0 11 4/4/20 1 7 Co-57 -1.5 5E+OO l.19 E+OO 3.44E+OO u WG W-14 42000 1 0 11 4/4/20 1 7 Co-58 l.68E+OO l.3 1 E+OO 4.57E+OO u WG W-1 4 42000 1 0 11 4/4/20 1 7 Co-60 O.OOE+OO O.OOE+OO 4.53 E+OO u WG W-14 42000 1 011 4/4/20 1 7 C r-5 1 -2.82E+OO 1.IO E+O I 3.69E+OI u WG W-14 42000 1 011 4/4/20 1 7 Cs-1 34 -3.06E-01 I.IOE+OO 3.38E+OO u WG W-14 42000 1 0 11 4/4/20 1 7 Cs-1 37 1.8 2E+OO l.34E+OO 4.68E+OO u WG W-14 42000 1 0 11 4/4/20 1 7 Fe-59 l.58E+OO 2.47E+OO 8.74E+OO u WG W-1 4 42000 1011 4/4/20 1 7 H-3 8.00E+O I 3.64E+02 1.1 9E+03 u WG W-14 42000 1 0 11 4/4/20 1 7 1-131 -1.92E-O I 2.22E+OO 7.47E+OO u WG W-1 4 420001011 4/4/20 1 7 K-40 -3.15 E+O I l.62E+O I 4.25E+OI u WG W-14 42000 1 01 1 4/4/20 1 7 La-1 40 1.28 E+OO l.82E+OO 6.54E+OO u WG W-14 42000 1 011 4/4/2017 Mn-54 -1.82E+OO l.4 1 E+OO 3.63£+00 u WG W-14 42000 1 0 11 4/4/20 1 7 Nb-95 7.80E-O I l.30E+OO 4.37 E+OO u WG W-14 42000 1 0 11 4/4/20 1 7 Ru-1 03 -2.4 6E+OO l.56 E+OO 4.2 1 E+OO u WG W-14 420001011 4/4/20 1 7 Ru-1 06 -1.41£+00 1.24 E+O I 4.00E+OI u WG W-14 42000 1 011 4/4/20 1 7 Sb-1 24 -3.IOE+OO 2.78E+OO 6.48£+00 u WG W-14 42000101 1 4/4/20 1 7 Sb-1 25 5.77E+OO 3.35E+OO 1.17£+01 u WG W-14 42000 1 01 1 4/4/20 1 7 Se-75 1.79£+00 l.72 E+OO 5.56£+00 u WG W-1 4 42000 1 01 1 4/4/2017 Th-228 3.59£+00 2.78E+OO 8.76£+00 u WG W-1 4 42000 1 01 1 4/4/20 1 7 Z n-65 1.00£-0 I 3.48E+OO 9.57E+OO u WG W-1 4 42000 1 0 11 4/4/2017 Zr-95 -2.7 6£+00 2.7 1£+00 7.53£+00 u WG SG-1 420001015 4/4/2017 Ac-228 -6.16E+OO 5.45£+00 l.67E+OI u WG SG-1 42000 1 015 4/4/20 1 7 Ag-1 08m 4.35£-0 1 1.17 E+OO 3.95£+00 u WG SG-1 420001015 4/4/20 1 7 Ag-I I Om -8.27£-0 1 1.53£+00 4.88£+00 u WG SG-1 420001015 4/4/20 1 7 ALPHA -1.1 5£+01 3.89£+00 l.44 E+O I u DL WG SG-1 42000 1 015 4/4/2017 Ba-140 -5.40£+00 7.49E+OO 2.1 9£+01 u WG SG-1 42000 1 015 4/4/2017 Be-7 -6.21E+OO l.12 E+O I 3.52£+01 u WG SG-1 42000 1 015 4/4/2017 BETA 6.35£+00 2.42E+OO 7.46£+00 DL WG SG-1 42000 1 0 15 4/4/2017 Ce-1 41 -3.76E+OO 2.39£+00 6.5 1£+00 u WG SG-1 42000 1 015 4/4/20 1 7 Ce-14 4 2.33£+0 1 1.15£+0 1 2.57£+01 u WG SG-1 42000 1 0 1 5 4/4/20 1 7 Co-57 -5.0IE-0 1 9.89£-01 2.98£+00 u WG SG-1 42000 1 0 1 5 4/4/20 1 7 Co-58 6.38E-O I I .57E+OO 5.1 I E+OO u WG SG-1 42000 1 015 4/4/20 1 7 Co-60 1.26£+00 I .35E+OO 4.80£+00 u WG SG-1 42000 1 015 4/4/20 1 7 C r-51 7.30£+00 9.88£+00 3.43£+01 u WG SG-1 420001015 4/4/2017 Cs-1 34 -3.03£-0 I l.33E+OO 4.IO E+OO u WG SG-1 42000 1 015 4/4/2017 Cs-1 37 5.20£-02 l.27E+OO 4.1 2£+00 u WG SG-1 42000 1 015 4/4/20 1 7 Fe-59 -l.60E+OO 2.48E+OO 7.59E+OO u WG SG-1 42000 1 015 4/4/20 1 7 H-3 -2.54£+02 3.44E+02 1.17£+03 u WG SG-1 42000 1 015 4/4/2017 1-1 3 1 -1.1 7£+00 1.99£+00 6.32£+00 u WG SG-1 420001015 4/4/2017 K-40 2.33£+0 1 1.72£+01 6.17£+01 u WG SG-1 42000 1 0 1 5 4/4/20 1 7 La-1 40 -1.25£+00 2.1 2E+OO 6.1 5£+00 u WG SG-1 42000 1 015 4/4/20 1 7 Mn-54 7.22£-0 1 1.04£+00 3.7 1£+00 u WG SG-1 42000 1 0 1 5 4/4/20 1 7 Nb-95 3.55£-01 1.29£+00 4.22£+00 u WG SG-1 420001015 4/4/20 1 7 R u-1 03 -1.34E+OO 1.45£+00 4.34£+00 u WG SG-1 42000 1 0 15 4/4/2017 Ru-1 06 -5.08£-0 1 9.65£+00 3.IOE+OI u D-120 Do n ald C. Cook Nuclear Pl a nt Annu a l Radiological Environmental Operating Report 2017 SAMPLE EN D CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WG SG-1 42000 1 0 1 5 4/4/20 1 7 Sb-1 24 4.19E-01 2.97E+OO 9.74E+OO u WG SG-1 420001015 4/4/2017 Sb-1 25 1.9 3E+OO 3.II E+O O I.07 E+O I u WG SG-1 420001015 4/4/20 1 7 Se-75 I .40E+OO I.57 E+OO 5.47E+OO u WG SG-1 4200010 1 5 4/4/20 17 T h-228 1.02E+OO 2.81E+OO 8.59E+OO u WG SG-1 42000 1 0 15 4/4/20 1 7 Zn-65 -4.35E+OO 2.84E+OO 7.27E+OO u WG SG-1 42000 1 0 1 5 4/4/20 17 Zr-95 3.20E+OO 1.96E+OO 6.97E+OO u WG SG-2 42000 1 0 1 6 4/4/20 1 7 Ac-228 -5.77E+OO 6.36E+OO l.82E+O I u WG SG-2 4200010 1 6 4/4/20 1 7 Ag-10 8m 7.27E-0 1 9.61E-OI 3.33E+OO u WG SG-2 420001016 4/4/20 1 7 Ag-11 0 111 4.92E+OO 2.32E+OO 4.66E+OO UT WG SG-2 420001016 4/4/20 1 7 ALP H A -2.17 E+OO 1.85E+OO 6.37E+OO u DL WG SG-2 42000 1 0 1 6 4/4/20 17 Ba-1 40 2.26E+OO 6.65E+OO 2.24E+O I u WG SG-2 420001016 4/4/20 1 7 Be-7 l.49E+OO 8.63E+OO 2.9 1 E+O I u WG SG-2 4200010 16 4/4/20 1 7 BETA 2.94 E+OO 7.37E-O I 2.14 E+OO M W G SG-2 420001016 4/4/20 1 7 Ce-1 4 1 -7.76E+OO 3.03 E+OO 6.33E+OO u W G SG-2 4200010 1 6 4/4/20 1 7 Ce-1 44 -1.28E+O I 8.24 E+OO 2.3IE+O I u W G SG-2 42000 1 0 1 6 4/4/2017 Co-57 9.54E-01 9.84 E-O I 3.26E+OO u W G SG-2 42000 1 0 1 6 4/4/20 1 7 Co-58 4.82E-0 2 l.03E+OO 3.32E+OO u W G SG-2 420001016 4/4/20 1 7 Co-60 -8.4IE-01 1.1 4E+OO 3.35E+OO u W G SG-2 4200010 1 6 4/4/20 17 C r-5 1 -5.48E+OO 1.1 6E+O I 3.50E+O I u W G SG-2 42000 1 016 4/4/20 1 7 Cs-1 34 6.39E-OI 1.2 2E+OO 4.08E+OO u W G SG-2 42000 1 0 1 6 4/4/20 1 7 Cs-1 3 7 -4.28E-OI l.66E+OO 5.5 1 E+OO u W G SG-2 420001016 4/4/20 1 7 Fe-59 2.27E+OO 2.58E+OO 9.15 E+OO u WG SG-2 42000 1 016 4/4/2017 H-3 5.2 1 E+02 3.85E+02 l.1 8E+03 u WG SG-2 4200010 1 6 4/4/2017 1-131 8.0IE+OO 2.44 E+OO 7.43E+OO UT WG SG-2 420001016 4/4/20 1 7 K-40 1.42E+OI 1.24E+O I 4.1 l E+O I u WG SG-2 420001016 4/4/20 1 7 La-140 3.92E-01 l.89E+OO 6.33E+OO u WG SG-2 420001016 4/4/20 1 7 Mn-54 -2.I OE-01 l.23E+OO 3.87E+OO u WG SG-2 42000 1 0 16 4/4/20 1 7 Nb-95 -4.62E-O I 1.12E+OO 3.43E+OO u WG SG-2 42000 1 0 16 4/4/20 1 7 Ru-1 03 -1.90E+OO I .46E+OO 3.8 1 E+OO u WG SG-2 4200010 16 4/4/20 1 7 Ru-1 06 1.42 E+O I 1.1 2E+O I 3.85E+OI u WG SG-2 42000 1 0 16 4/4/20 1 7 Sb-1 24 -2.77E+OO 2.70 E+OO 6.97E+OO u WG SG-2 420001016 4/4/2017 Sb-1 25 2.0 I E+OO 2.98E+OO l.03E+O I u WG SG-2 420001016 4/4/2017 Se-75 1.68E+OO 1.64E+OO 5.27E+OO u WG SG-2 420001016 4/4/2017 T h-22 8 9.38E+OO 3.4 1 E+OO 5.20E+OO WG SG-2 42000 1 016 4/4/20 1 7 Z n-65 3.86E-OI 2.14E+OO 6.53E+OO u WG SG-2 420001016 4/4/2017 Z r-95 6.77E-O I 2.09 E+OO 6.92E+OO u WG SG-4 420001017 4/4/2017 Ac-228 -I.7 1 E+OI 7.36 E+OO l.53E+OI u WG SG-4 420001017 4/4/2017 Ag-1 08 111 -1.0 I E+OO l.25 E+OO 3.75E+OO u WG SG-4 420001017 4/4/20 1 7 Ag-11 0111 -4.7 1 E-OI l.54E+OO 5.0 5 E+OO u WG SG-4 42000 1 0 1 7 4/4/20 1 7 ALPHA 2.I I E-0 1 l.0 9E+OO 3.56E+OO u WG SG-4 4200 0 1 0 17 4/4/20 1 7 Ba-1 40 -2.0 I E+OO 6.46E+OO 2.02E+O I u W G SG-4 420001017 4/4/20 1 7 Be-7 -3.2 1 E-0 1 1.1 I E+O l 3.58E+O I u W G SG-4 4200010 1 7 4/4/20 1 7 BETA 9.42E+OO l.04E+OO l.78E+OO W G SG-4 4200010 1 7 4/4/2017 Ce-141 5.47E-OI 2.1 8E+OO 7.43E+OO u W G SG-4 420001017 4/4/20 1 7 Ce-14 4 -6.67E+OO 8.56E+OO 2.76E+O I u W G SG-4 420001017 4/4/2017 Co-57 4.30E-02 l.05E+OO 3.57E+OO u W G SG-4 420001017 4/4/20 1 7 Co-58 -I.08E+OO l.1 4E+OO 3.40E+OO u W G SG-4 420001017 4/4/20 1 7 Co-60 2.88E+OO 1.63E+OO 5.8IE+OO u W G SG-4 420001017 4/4/20 1 7 C r-5 1 -7.3 1 E-0 I 1.22 E+OI 4.02E+O I u W G SG-4 420001017 4/4/20 1 7 Cs-134 7.1 6E-OI l.30E+O O 4.58 E+OO u D-1 2 1 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN D ATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WG SG-4 42000 1 0 1 7 4/4/20 1 7 Cs-1 37 -5.73£-0 1 l.20E+OO 3.60E+OO u WG SG-4 42000 1 0 1 7 4/4/20 1 7 Fe-59 -1.82£-0 1 2.1 7E+OO 7.1 6E+OO u WG SG-4 42000 1 0 17 4/4/20 1 7 H-3 -8.04E+O I 3.48E+02 l.1 6E+03 u WG SG-4 42000 1 0 17 4/4/20 1 7 1-131 l.80E+OO 2.33E+OO 7.89E+OO u WG SG-4 42000 1 0 1 7 4/4/20 1 7 K-40 -3.38E+O I 1.88E+O I 5.1 2E+O I u WG SG-4 4200010 1 7 4/4/20 1 7 La-1 40 -3.58E+OO 2.70E+OO 5.1 4E+OO u WG SG-4 42000 1 0 1 7 4/4/20 17 M n-54 -2.60£-0 1 l.29E+OO 3.97E+OO u WG SG-4 42000 1 0 17 4/4/20 1 7 N b-95 -6.37£-0 1 1.40E+OO 3.97E+OO u WG SG-4 42000 1 0 1 7 4/4/20 1 7 Ru-1 03 7.24£-0 1 1.27E+OO 4.26E+OO u WG SG-4 42000 1 0 1 7 4/4/20 1 7 Ru-106 l.06E+O I 1.31E+O I 4.3 8E+O I u WG SG-4 42000 1 0 17 4/4/20 1 7 Sb-1 24 -l.96E+OO 2.83E+OO 8.0 I E+OO u WG SG-4 42000 1 0 1 7 4/4/20 1 7 Sb-1 25 3.38E+OO 3.73E+OO l.26E+OI u WG SG-4 42000 1 0 1 7 4/4/20 1 7 Se-75 l.23E+OO l.55E+OO 5.26E+OO u WG SG-4 42000 1 0 1 7 4/4/20 1 7 T h-228 2.06E+O I 7.55E+OO 9.6 1 E+OO UI WG SG-4 42000 1 017 4/4/20 1 7 Z n-65 3.7 1 E+OO 3.24E+OO l.09E+OI u WG SG-4 42000 1 0 1 7 4/4/20 1 7 Zr-95 1.46£-0 1 2.64E+OO 8.42E+OO u WG SG-5 42000 1 0 1 8 4/4/20 1 7 Ac-228 -8.29 E+OO 5.66E+OO l.64E+OI u WG SG-5 42000 1 0 1 8 4/4/20 1 7 Ag-1 08m 3.1 2£-0 1 9.0 I E-0 1 3.06E+OO u WG SG-5 42000 1 0 18 4/4/20 1 7 Ag-l lOm l.30E+OO 1.5 1 E+OO 5.39E+OO u WG SG-5 42000 1 0 1 8 4/4/20 1 7 ALPHA 2.89E+OO l.1 2E+OO 3.20E+OO u WG SG-5 42000 1 0 1 8 4/4/20 1 7 Ba-140 9.58£-0 1 5.86E+OO l.94E+OI u WG SG-5 42000 1 018 4/4/20 1 7 Be-7 -1.57 E+O I l.1 4E+O I 3.1 9E+O I u WG SG-5 4200010 18 4/4/20 17 B E TA 2.0 I E+O I l.85E+OO l.55E+OO WG SG-5 42000 1 0 1 8 4/4/20 1 7 Ce-1 41 -4.44E+OO 2.65E+OO 6.79E+OO u WG SG-5 42000 1 0 1 8 4/4/20 1 7 Ce-1 44 3.89E+OO 7.96E+OO 2.60E+O I u WG SG-5 42000 1 0 1 8 4/4/20 1 7 Co-57 6.38£-0 1 l.1 4E+OO 3.74E+OO u WG SG-5 4200010 1 8 4/4/20 1 7 Co-58 -l.13 E+OO 9.46£-0 1 2.66E+OO u WG SG-5 42000 1 018 4/4/20 1 7 Co-60 -2.02E+OO l.35E+OO 3.30E+OO u WG SG-5 42000 1 0 18 4/4/20 1 7 C r-51 -1.3 1 E+O I l.l 7E+O I 3.59E+OI u WG SG-5 42000 1 0 1 8 4/4/20 1 7 Cs-134 3.08E-O I 1.24E+OO 4.04E+OO u WG SG-5 42000 1 0 1 8 4/4/20 1 7 Cs-137 J.02E+OO l.26E+OO 4.26E+OO u WG SG-5 42000 1 0 1 8 4/4/20 1 7 Fe-59 3.45E+OO 2.45E+OO 8.80E+OO u WG SG-5 420001018 4/4/20 1 7 H-3 9.46E+O I 3.53E+02 l.1 5E+03 u WG SG-5 42000 1 0 1 8 4/4/20 1 7 1-131 -1.44E+OO 2.0 I E+OO 6.33E+OO u WG SG-5 420001018 4/4/20 1 7 K-40 6.07E+OO 1.7 1 E+O I 6.02E+OI u WG SG-5 42000 1 0 1 8 4/4/20 1 7 La-1 40 2.66E+OO l.74E+OO 6.58E+OO u WG SG-5 42000 1 0 18 4/4/20 1 7 Mn-54 -l.73E+OO 1.1 7E+OO 3.20E+OO u WG SG-5 42000 1 018 4/4/20 1 7 Nb-95 -5.9 1 E-OI l.23E+OO 3.2 1 E+OO u WG SG-5 42000 1 018 4/4/20 1 7 R u-103 -2.62E+OO 1.28E+OO 2.94E+OO u WG SG-5 42000 1 018 4/4/20 1 7 Ru-1 06 l.96 E+O I 1.08E+O I 3.72E+OI u WG SG-5 42000 1 0 1 8 4/4/20 17 S b-1 24 3.74E+OO 3.08E+OO I.I I E+O I u WG SG-5 42000 1 0 1 8 4/4/20 1 7 S b-1 25 3.08E+OO 3.78E+OO 1.1 8E+O I u WG SG-5 42000 1 0 1 8 4/4/20 1 7 Se-75 3.21£-0 1 l.5 1 E+OO 5.1 9E+OO u WG SG-5 42000 1 0 18 4/4/20 17 T h-228 2.51E+OO 3.55E+OO 8.50E+OO u WG SG-5 42000 1 0 1 8 4/4/20 1 7 Zn-65 -4.1 2E+OO 2.9 1 E+OO 7.82E+OO u WG SG-5 42000 1 0 18 4/4/20 1 7 Z r-95 2.39E+OO 2.09E+OO 7.1 9E+OO u WG W-2 42000 1 002 4/5/20 1 7 Ac-228 -1. I OE+O I 6.35E+OO l.56E+OI u WG W-2 42000 1 002 4/5/20 1 7 Ag-1 08m -3.1 7£-0 1 J.1 2E+OO 3.55E+OO u WG W-2 42000 1 002 4/5/20 1 7 Ag-I I Orn -3.47£-0 I l.30E+OO 4.23E+OO u WG W-2 42000 1 002 4/5/20 1 7 Ba-140 -2.25E+OO 5.86E+OO l.8 1 E+OI u D-1 22 Do n ald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE EN D CONC ST D.DE V. MD C FLAGS TYPE STATION LSN DATE NUCL ID E (pCi/L) (p C i/L) (pCi/L) WG W-2 42000 1 002 4/5/20 1 7 B e-7 -4.8 1 E+OO l.25 E+O l 3.45 E+O I u WG W-2 42000 1 002 4/5/20 1 7 C e-1 4 1 1.73E+OO 2.1 3E+O O 7.3 1 E+O O u WG W-2 42000 1 002 4/5/20 1 7 C e-1 44 -8.62 E+OO 8.2 1 E+OO 2.57 E+O I u WG W-2 42000 1 002 4/5/20 17 C o-57 -3.7 1 E-OI 1.1 9 E+OO 3.98 E+OO u WG W-2 4 2 000 1 002 4/5/20 1 7 C o-58 -9.51E-OI l.20 E+OO 3.72E+OO u WG W-2 4 2 000 1 002 4/5/20 1 7 C o-60 5.0 I E-0 1 1.37 E+OO 4.68 E+OO u WG W-2 4 2 000 1 002 4/5/20 1 7 C r-51 -3.36 E+OO 1.1 6 E+O I 3.75 E+O I u WG W-2 4 200 01002 4/5/20 1 7 Cs-134 -9.75 E-O l l.26 E+OO 3.92 E+OO u WG W-2 4 2 0001002 4/5/20 1 7 C s-1 3 7 6.82E-O I l.1 7 E+OO 3.92E+OO u W G W-2 42 0 001002 4/5/20 1 7 F e-59 -4.68 E-O I 2.5 1 E+OO 8.23 E+OO u WG W-2 4 2 00 0 1002 4/5/20 1 7 H-3 -I .20 E+02 3.52 E+02 l.1 8 E+03 u WG W-2 42000 1 002 4/5/20 1 7 1-1 31 -4.58 E-O I 2.2 1 E+O O 6.33E+O O u WG W-2 4 2000 1 002 4/5/20 1 7 K-40 3.80E+OI 2.69 E+O I 4.1 2 E+OI u WG W-2 4 2 0 00 1002 4/5/20 1 7 L a-1 40 -3.03 E+OO 2.74 E+OO 7.59 E+O O u WG W-2 4 2 0 0 0 1 002 4/5/20 17 M n-54 8.94 E-O I l.27 E+OO 4.47 E+O O u WG W-2 4 2 0 0 01002 4/5/20 1 7 N b-95 2.35 E-02 l.31 E+OO 4.48 E+OO u W G W-2 42000 1 002 4/5/20 1 7 Ru-1 0 3 -9.1 6 E-OI 1.28 E+OO 3.83 E+OO u W G W-2 420 00 1002 4/5/20 1 7 R u-I 06 -l.74 E+O I l.33 E+O I 3.58 E+O I u W G W-2 4 2 0001002 4/5/20 1 7 S b-1 24 2.04E+OO 3.55 E+OO l.2 3 E+O I u W G W-2 4 2 000 1 002 4/5/20 1 7 Sb-1 2 5 2.05E-OI 3.50 E+OO 1.15 E+O I u W G W-2 420 00 1002 4/5/20 1 7 S e-75 6.50 E-O I l.67 E+OO 5.6 1 E+OO u W G W-2 4 2 000 1 002 4/5/20 1 7 T h-2 2 8 5.1 4E+OO 4.35 E+OO 8.82 E+OO u W G W-2 420 0 01002 4/5/20 17 Z n-65 -1.1 l E+OO 2.68 E+OO 8.52 E+OO u W G W-2 4 2 0 00 1 002 4/5/20 1 7 Z r-95 l.30 E+OO l.95 E+OO 6.05 E+OO u W G W-9 420001006 4/5/20 1 7 Ac-228 4.50E+OO 7.83 E+OO l.67 E+O I u W G W-9 420 0 01006 4/5/20 1 7 Ag-1 08 m 8.1 l E-01 8.87 E-O I 3.04 E+OO u W G W-9 4 2 000 1 006 4/5/20 1 7 Ag-ll Om 7.1 9E-O I l.20 E+O O 4.23 E+OO u WG W-9 420 0 0 1 006 4/5/20 1 7 Ba-140 2.88E+OO 5.44 E+OO l.83 E+O I u W G W-9 42000 1 006 4/5/20 1 7 Be-7 -4.l lE+OO 9.52 E+OO 3.03E+O I u WG W-9 42000 1 006 4/5/20 1 7 Ce-1 41 -1.70E-O I l.84 E+OO 5.83 E+O O u WG W-9 42 0 00 1 006 4/5/20 1 7 Ce-1 44 5.I I E-0 1 7.3 1 E+OO 2.34 E+O I u WG W-9 420001006 4/5/20 1 7 C o-57 2.85E-02 8.5 6E-O I 2.75 E+OO u WG W-9 420001006 4/5/20 1 7 C o-58 -3.25 E-0 1 1.I O E+OO 3.1 8 E+OO u WG W-9 42 0 0 0 1006 4/5/20 1 7 C o-6 0 7.06 E-0 1 1.05 E+OO 3.6 4 E+OO u WG W-9 4 20 001006 4/5/20 1 7 C r-5 1 5.77E+OO 8.86 E+O O 3.06 E+O I u WG W-9 4 20 0 0 100 6 4/5/20 1 7 Cs-134 1.1 6E+OO l.l 4 E+OO 3.87 E+OO u WG W-9 4 2 0 0 0 1 00 6 4/5/20 1 7 Cs-137 l.59 E+OO 1.1 5 E+OO 3.92 E+OO u WG W-9 4 2 000 1 006 4/5/20 1 7 Fe-59 l.65E+OO 2.23 E+OO 7.75 E+O O u WG W-9 4200 0 100 6 4/5/20 17 H-3 3.85E+02 3.85 E+02 l.20 E+03 u WG W-9 420001006 4/5/20 1 7 1-13 1 8.74E-O I 1.78 E+OO 6.08 E+O O u WG W-9 4 2 0 0 0 1 006 4/5/20 1 7 K-40 -2.79 E+O I l.7 9E+O I 5.62 E+O l u WG W-9 420 0 01006 4/5/20 17 L a-1 40 1.53E+OO l.57 E+OO 5.58 E+O O u WG W-9 420 0 0 1 006 4/5/20 1 7 Mn-54 1.1 9E+OO 1.05 E+OO 3.73 E+O O u WG W-9 42000 1 006 4/5/20 1 7 N b-9 5 -l.58E+OO 1.28 E+OO 2.87 E+OO u WG W-9 42000 1 006 4/5/20 17 R u-1 0 3 -1.02E+OO 9.9 1 E-0 1 2.89 E+O O u WG W-9 42000 1 0 06 4/5/2017 Ru-1 0 6 -4.36E+OO 1.1 I E+O I 3.47 E+O I u WG W-9 42000 1 00 6 4/5/20 1 7 S b-1 24 2.88 E+OO 2.25 E+OO 8.25 E+OO u WG W-9 42000100 6 4/5/20 1 7 S b-1 25 1.1 6E+OO 2.86 E+OO 9.66 E+OO u W G W-9 4 2 0 0 0100 6 4/5/20 1 7 Se-7 5 -4.38 E-02 l.28 E+OO 4.36 E+OO u W G W-9 420001006 4/5/20 1 7 T h-22 8 -1.58E+OO 2.48 E+OO 7.47 E+OO u D-123 Donald C. Cook Nuclea r Plant Annu a l Radiological Environmental Operatin g Report 2 017 SAMPLE END CONC ST D.DEV. MDC FLAGS TYPE STATION LSN D ATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WG W-9 42000 1 006 4/5/20 1 7 Z n-6S -2.00E+OO 2.36E+OO 7.08E+OO u WG W-9 42000 1 006 4/5/20 1 7 Zr-9S -4.1 7E-O I I .85E+OO 5.74E+OO u WG W-12 42000 1 009 4/5/20 1 7 Ac-228 7.35E-O l 5.73E+OO l.95E+O I u WG W-12 42000 1 009 4/5/20 1 7 Ag-1 08m l.84E+OO l.17E+OO 3.99E+OO u WG W-12 42000 1 009 4/5/20 17 A g-l lOm -5.00E-02 l.30E+OO 4.I I E+OO u WG W-1 2 42000 1 009 4/5/20 1 7 Ba-1 40 -2.84E+OO 6.97E+OO 2.08E+O I u WG W-12 420001009 4/5/20 1 7 Be-7 8.96 E+OO l.1 3E+O I 3.85E+O I u WG W-12 42000 1 009 4/5/20 1 7 Ce-1 4 1 -8.74E-O I 2.57E+OO 7.62E+OO u WG W-12 42000 1 009 4/5/20 1 7 Ce-1 44 l.08 E+OO 8.9 1 E+OO 2.78E+O l u WG W-12 42000 1 009 4/5/20 1 7 Co-S7 3.93E-O I J.1 7E+OO 3.68E+OO u WG W-1 2 42000 1 009 4/5/20 1 7 Co-S8 -9.24E-02 l.04E+OO 3.28E+OO u WG W-1 2 42000 1 009 4/5/20 1 7 Co-60 l.36E+OO l.23E+OO 4.49E+OO u WG W-1 2 42000 1 009 4/5/20 1 7 C r-SI -4.27E+OO J.1 5E+OI 3.76E+O I u WG W-1 2 42000 1 009 4/5/20 1 7 Cs-1 34 -2.24E+OO J.37E+OO 3.1 8E+OO u WG W-12 42000 1 009 4/5/20 1 7 Cs-1 37 2.1 9E-O I l.23E+OO 4.0 2E+OO u WG W-1 2 42000 1 009 4/5/20 1 7 Fe-S9 -1.0 1 E-02 l.78E+OO 5.99E+OO u WG W-12 42000 1 009 4/5/20 1 7 H-3 2.83E+02 3.77E+02 I. 1 9E+03 u WG W-12 42000 1 009 4/5/20 1 7 1-1 3 1 3.3 2 E-0 1 l.88E+OO 6.3 1 E+OO u WG W-12 42000 1 009 4/5/20 1 7 K-40 -I .88E+O I J.78E+O I 5.52E+OI u WG W-12 42000 1 009 4/5/20 1 7 La-1 40 l.96E-O I 2.57E+OO 7.49E+OO u WG W-12 42000 1 009 4/5/20 1 7 M n-S4 -1.07E+OO I .1 6E+OO 3.20E+OO u WG W-12 42000 1 009 4/5/20 1 7 Nb-9S -l.25E+OO l.27E+OO 3.52E+OO u WG W-1 2 42000 1 009 4/5/20 17 R u-1 03 -3.59E-O I l.26E+OO 4.04E+OO u WG W-1 2 42000 1 009 4/5/20 1 7 Ru-1 06 2.84E+O I l.20E+O I 2.I OE+O I U I WG W-1 2 42000 1 009 4/5/20 17 S b-1 24 -2.45E-O I 2.83E+OO 9.1 4E+OO u WG W-1 2 42000 1 009 4/5/2 0 1 7 S b-1 2S 4.59E-O I 3.25E+OO l.08E+O I u WG W-1 2 42000 1 009 4/5/20 1 7 Se-7S -J.34E+OO l.44E+OO 4.49E+OO u WG W-1 2 42000 1 009 4/5/20 1 7 T h-228 3.25E+OO 4.00E+OO 8.33E+OO u WG W-1 2 42000 1 009 4/5/20 1 7 Z n-6S 2.27E+OO 2.1 3E+OO 7.28E+OO u WG W-1 2 42000 1 009 4/5/20 1 7 Zr-9S -2.73E+OO 2.20E+OO 5.77E+OO u WG W-I S 42000 1 0 1 2 4/5/20 1 7 Ac-228 -7.93E+OO 6.1 9E+OO l .82E+O J u WG W-IS 42000 1 0 1 2 4/5/20 1 7 Ag-1 08m 4.1 9E-O I 9.28£-0 1 3.1 9E+OO u WG W-IS 42000 1 012 4/5/20 1 7 Ag-I I Om 8.34E-O I 1.23£+00 4.20£+00 u WG W-I S 42000 1 0 1 2 4/5/20 1 7 Ba-1 40 2.25£+00 4.92E+OO J.68E+OI u WG W-I S 4200010 1 2 4/5/20 1 7 Be-7 7.35E+OO 9.06£+00 3.1 4E+OI u WG W-I S 42000 1 0 1 2 4/5/20 1 7 Ce-1 4 1 -6.03E+OO 2.65£+00 5.90E+OO u WG W-I S 42000 1 0 1 2 4/5/20 1 7 Ce-1 44 8.36£+00 7.1 I E+OO 2.35£+0 1 u WG W-I S 42000 1 012 4/5/20 1 7 Co-S7 6.24E-O I 9.97E-0 1 3.30E+O O u WG W-I S 42000 1 012 4/5/20 1 7 Co-S8 -I.2 1 E+OO J.20E+OO 3.35£+00 u WG W-I S 420001012 4/5/20 1 7 Co-60 l.09E+OO l.05E+OO 3.83£+00 u WG W-I S 42000 1 012 4/5/20 1 7 C r-SI -1.90E+O J I. I 7E+O l 3.04E+O I u WG W-I S 42000 1 0 1 2 4/5/20 1 7 Cs-1 34 -2.34E+OO 1.29£+00 2.85E+OO u WG W-I S 42000 1 012 4/5/20 1 7 Cs-137 -6.38E-O I I .46E+OO 4.82£+00 u WG W-I S 42000 1 0 1 2 4/5/20 1 7 Fe-S9 2.07£-0 1 2.08E+OO 7.08E+OO u WG W-I S 42000 1 0 1 2 4/5/20 1 7 H-3 -4. J OE+02 3.44E+02 1.20£+03 u WG W-I S 42000 1 0 1 2 4/5/20 1 7 1-1 31 -1. 1 5E+OO l.37E+OO 4.25£+00 u WG W-I S 42000 1 0 1 2 4/5/20 1 7 K-40 6.74£+00 l.27E+O I 4.6 1 E+OI u WG W-I S 42000 1 0 12 4/5/20 I 7 La-1 40 I.I I E+OO l.70E+OO 5.98£+00 u WG W-I S 42000 1 0 1 2 4/5/20 I 7 M n-S4 2.80E-O I 1.1 5E+OO 3.74E+OO u WG W-I S 4200010 12 4/5/20 1 7 Nb-9S -1.47£+00 l.2 1 E+OO 3.28E+O O u D-1 24 Do n ald C. Cook Nucle a r Pl a n t Annual Radiological Environmental Operating Report 2017 S AMP LE END CONC STD.D E V. MDC FLAGS TYPE STATION LSN DATE NUC LID E (pCi/L) (pCi/L) (pC i/L) WG W-1 5 42000 1 0 1 2 4/5/20 1 7 R u-I 03 -5.22E-0 1 1.4 1 E+OO 4.23E+OO u WG W-1 5 42000 1 0 12 4/5/20 1 7 R u-1 06 -1.1 4E+O I l.04E+O I 2.94E+O I u WG W-1 5 4200010 1 2 4/5/20 17 Sb-1 24 -1.06E-O I 2.47E+OO 7.9 5 E+OO u WG W-1 5 42000 1 0 1 2 4/5/20 17 Sb-1 25 -l.57E+OO 2.70E+OO 8.59E+OO u WG W-15 4200010 12 4/5/20 1 7 Se-75 3.20E+OO l.68E+OO 5.40E+OO u WG W-15 4200010 1 2 4/5/20 1 7 Th-228 2.78E+OO 2.59E+OO 8.25E+OO u WG W-1 5 42000 1 0 1 2 4/5/20 1 7 Z n-65 3.54E-O I 2.32E+OO 7.04E+O O u WG W-15 42000 1 012 4/5/20 1 7 Zr-95 O.OOE+OO O.OOE+OO 6.1 4E+OO u WG MW-20 42000 1 0 13 4/5/20 1 7 Ac-228 4.09E+OO 1.1 5E+O I 3.08E+O I u WG MW-20 42000 1 0 1 3 4/5/20 1 7 Ag-108m 2.46E-OI l.29E+OO 4.46E+OO u WG MW-20 42000 1 0 1 3 4/5/20 1 7 Ag-ll O m -1.89E+OO 2.45E+OO 6.92E+OO u WG MW-20 42000 1 0 1 3 4/5/20 1 7 Ba-1 40 1.78E+OO 6.98E+OO 2.40E+O I u WG MW-20 42000 1 0 1 3 4/5/20 1 7 Be-7 2.29E+O I l.5 4E+O I 5.50E+O I u WG M W-20 42000 1 0 13 4/5/20 1 7 Ce-1 4 1 l.56E+OO 2.58E+OO 8.70E+O O u W G MW-20 42000 1 013 4/5/20 1 7 Ce-1 44 2.4 5 E+O I 1.23E+O I 3.08E+O I u W G MW-20 4200010 1 3 4/5/20 1 7 Co-57 -2.5 5 E-OI l.24E+OO 4.I OE+OO u W G MW-20 42000 1 013 4/5/20 1 7 Co-58 2.52E+OO l.80E+OO 6.5 1 E+O O u W G MW-20 420001013 4/5/20 1 7 Co-60 -2.1 5E+OO 1.82E+OO 4.58E+OO u W G MW-20 42000 1 013 4/5/20 1 7 Cr-5 1 2.35E+O I l.52E+O I 5.07E+O I u W G MW-20 420001013 4/5/20 1 7 Cs-1 34 2.24E+OO 2.28E+OO 7.95E+OO u W G MW-20 420001013 4/5/20 1 7 Cs-1 3 7 -3.07E+OO l.69E+OO 3.57E+OO u W G MW-20 42000 1 0 1 3 4/5/20 1 7 Fe-59 -l.5 8E+OO 3.93E+OO 1.27E+O I u W G MW-20 42000 1 0 13 4/5/20 1 7 H-3 3.52E+02 3.77E+02 l.18E+03 u W G MW-20 42000 1 0 13 4/5/20 1 7 1-13 1 1.47E+OO 3.09E+OO 9.95E+O O u WG MW-20 42000 1 0 13 4/5/20 1 7 K-40 4.96E+O I 3.09E+O I 4.68E+O I UI WG MW-20 42000 1 0 13 4/5/20 1 7 La-1 40 4.0 I E+OO 2.2 1 E+OO 9.34E+OO u WG M W-20 420001013 4/5/20 17 M n-54 l.7 0E+OO l.62E+OO 5.79E+O O u WG MW-20 420001013 4/5/20 1 7 Nb-95 l.70E+OO 2.25E+OO 7.7 1 E+OO u WG MW-20 420001013 4/5/20 1 7 Ru-103 -3.79E+OO 2.1 I E+OO 4.3 3E+OO u WG MW-20 420001013 4/5/20 1 7 Ru-1 06 -2.47E+OO 1.44E+O I 4.67E+O I u WG MW-20 420001013 4/5/20 1 7 Sb-1 24 1.58E+OO 2.85E+OO I .07E+O I u WG MW-20 42000 1 0 1 3 4/5/20 1 7 Sb-1 25 3.09E+OO 3.80E+OO 1.36E+O l u WG MW-20 420001013 4/5/20 1 7 Se-75 -8.02E-O I 2.00E+OO 6.1 4E+OO u WG MW-20 420001013 4/5/20 1 7 Th-228 1.1 4E+OO 3.57E+OO 1.1 9E+O I u WG M W-20 42000 1 0 1 3 4/5/20 1 7 Z n-65 -2.33E+OO 3.42E+OO 8.56E+O O u WG MW-20 42000 1 0 1 3 4/5/20 1 7 Z r-95 -8.33E-O I 2.86E+OO 8.96E+OO u WG MW-2 1 42000 1 0 14 4/5/20 17 Ac-228 -3.67E-O I 5.52E+OO 1.7 1 E+OI u WG MW-21 42000 1 0 14 4/5/20 17 A g-1 08 111 I.82E+OO I .1 6E+OO 4.02E+OO u WG MW-21 420001014 4/5/20 1 7 Ag-l l Om 8.70E-O I 1.6 1 E+OO 5.48E+OO u WG MW-2 1 420001014 4/5/20 1 7 Ba-1 40 -4.89E+OO 6.33E+OO 1.90E+O I u WG MW-21 42000 1 014 4/5/20 1 7 Be-7 3.78E+OO l.33 E+O I 4.30E+O I u WG MW-21 42000 1 0 1 4 4/5/20 1 7 Ce-1 41 -1.06E+OO 2.35E+OO 7.86E+OO u WG MW-21 42000 1 014 4/5/20 1 7 Ce-1 44 2.47E+OO 9.53 E+OO 3.30E+O I u WG MW-21 420001014 4/5/20 1 7 Co-57 6.3 I E-01 l.22E+OO 4.23E+OO u WG MW-21 42000 1 0 14 4/5/20 1 7 Co-58 4.34E-01 1.26E+OO 4.20E+OO u WG MW-21 4200010 1 4 4/5/20 1 7 Co-60 1.1 4E+OO 1.34E+OO 4.90E+OO u W G MW-2 1 4200010 14 4/5/20 1 7 C r-5 1 -1.1 3E+O I l.2 1 E+O I 3.23E+O I u WG M W-2 1 4200010 14 4/5/20 1 7 Cs-1 34 l.38E+OO l.54E+OO 5.30E+O O u W G MW-2 1 4200010 14 4/5/20 17 Cs-1 37 8.54E-O I l.32E+OO 4.52 E+OO u W G MW-2 1 42000 1 0 14 4/5/20 1 7 Fe-59 5.58E-OI 2.95E+OO 9.56E+OO u D-1 2 5 Donald C. Coo k Nuclear Pl a nt Ann u al Radiological Environmental Operati n g Report 20 1 7 SAMPLE E ND CONC ST D.D E V. MDC FLAGS TYPE STATION LSN DAT E NUCLIDE (pCi/L) (pCi/L) (pCi/L) WG MW-2 1 42000 1 0 1 4 4/5/20 1 7 H-3 -l.34E+02 3.39E+02 1.14 E+03 V WG MW-2 1 42000 101 4 4/5/2 017 1-13 1 -l.2 8E+OO 2.29£+00 7.3 1 E+OO V WG MW-21 42000 1 0 1 4 4/5/2017 K-40 -1.88 E+O l 1.93E+O I 6.07E+Ol V WG MW-2 1 42000 1 0 1 4 4/5/20 1 7 La-1 40 -2.70 E+OO 2.73E+OO 7.80E+OO V WG MW-21 42000 1 0 1 4 4/5/2017 Mn-54 -7.87E-02 l.39E+OO 4.47E+OO V WG MW-2 1 42000 1 0 1 4 4/5/20 1 7 Nb-95 -2.55 E-O 1 1.47 +00 4.66E+OO V WG MW-2 1 42000 1 0 1 4 4/5/20 17 R u-I 03 -4.25E-O I l.46E+OO 4.6 9£+00 V WG MW-2 1 42000 101 4 4/5/2017 R u-I 06 4.22 E+O l 2.53E+Ol 3.42E+Ol V I WG MW-2 1 42000 1 0 1 4 4/5/20 1 7 Sb-1 24 2.74 E+OO 3.97E+OO 1.41 E+O l V WG MW-2 1 42000 1 0 1 4 4/5/2017 Sb-1 25 4.89£+00 4.51E+OO l.18 E+OI V WG MW-21 42000 1 014 4/5/2017 Se-75 2.31E+OO l.66E+OO 5.70 E+OO V WG MW-2 1 42000 1 014 4/5/20 17 T h-228 3.66E+OO 4.62E+OO 9.79E+OO V WG MW-2 1 42000 1 0 1 4 4/5/2 0 1 7 Z n-65 2.29E+OO 2.39E+OO 8.45E+OO V WG MW-2 1 42000 1 0 1 4 4/5/20 1 7 Zr-95 l.39 E+OO 2.04E+OO 7.05E+OO V WG W-4 42087500 1 4/17/2017 Ac-228 -9.1 l E+OO 3.94E+OO 5.91E+OO V WG W-4 42087500 1 4/17/2017 Ag-1 08m -3.00E-01 3.28E-Ol 1.05E+OO V WG W-4 42087500 1 4/17/20 1 7 Ag-1 l Om -2.97E-O l 4.80E-Ol 1.47 E+OO V WG W-4 42087500 1 4/17/2 017 Ba-140 -4.61E+OO 3.4 1 E+OO 5.22E+OO V WG W-4 42087500 1 4/17/2017 Be-7 -3.26E+OO 3.28E+OO l.04E+Ol V WG W-4 42087500 1 4/17/2017 Ce-141 2.50E-01 6.87E-Ol 2.05E+OO V WG W-4 42087500 1 4/17/20 17 Ce-1 44 1.86E+OO 2.56E+OO 8.26 E+OO V WG W-4 420875001 4/17/20 1 7 Co-57 -2.2 7£-01 3.42E-O I l.09 E+OO V WG W-4 42087500 1 4/17/2017 Co-58 -9.99E-02 4.03E-O I l.28E+OO V WG W-4 42087500 1 4/17/2017 Co-60 -1.53E-O I 3.90E-01 l.2 6E+OO V WG W-4 42087500 1 4/17/20 1 7 C r-5 1 6.38E-0 1 3.23E+OO l.ll E+O l V WG W-4 42087500 1 4/17/2017 Cs-134 -3.8 1 E-OI 4.48E-01 l.37E+OO V WG W-4 420875001 4/17/20 1 7 C s-137 -7.51 E-0 I 9.17E-OI l.86E+OO V WG W-4 420875001 4/17/20 17 Fe-59 1.20E+OO 7.76E-OI 2.34E+OO V WG W-4 4 208 75001 4/17/2017 H-3 1.02£+03 5.33E+02 l.5 3E+03 V WG W-4 420875001 4/17/2017 1-1 3 1 -3.73E-01 5.41 E-O l l.7 8E+OO V WG W-4 420875001 4/17/2017 K-40 l.65E+O I 1.22E+O l l.l!E+Ol V I WG W-4 420875001 4/17/20 1 7 La-1 40 2.66 E-0 1 5.77 E-O I l.91E+OO V WG W-4 420875001 4/17/20 17 Mn-54 -5.62E-03 3.98E-Ol 1.27£+00 u WG W-4 420875001 4/17/2017 Nb-95 3.64£-01 4.38E-O I 1.28E+OO u WG W-4 42087500 1 4/17/2017 Ru-10 3 -l.79E-02 4.33E-O I l.29E+OO u WG W-4 42087500 1 4/17/2017 Ru-1 0 6 -3.0 l E+OO 3.48E+OO l.09 E+01 u WG W-4 42087500 1 4/17/20 17 S b-1 24 6.72E-02 8.72E-O l 2.84 E+OO u WG W-4 42087500 1 4/17/20 1 7 Sb-1 25 1.24E-O 1 1.09E+OO 3.65E+OO u WG W-4 42087500 1 4/17/20 1 7 Se-75 -2.00E-0 2 5.43E-OI I.69 E+OO u WG W-4 42087500 1 4/17/20 1 7 Th-228 3.96E+OO l.60E+OO 2.2 2 E+OO V I WG W-4 42087500 1 4/17/2017 Z n-65 I .46E+OO 9.39E-OI 2.80 E+OO V WG W-4 42087500 1 4/1 7/2017 Z r-95 -3.36E-O l 6.33£-0 1 l.98E+OO V WG W-5 420875002 4/17/2017 Ac-228 -3.64E+OO 3.30E+OO 5.86 E+OO V WG W-5 420875002 4/17/2017 Ag-1 08m -6.4 1 E-0 1 4.1 6E-Ol 1.21 E+OO V WG W-5 420875002 4/17/20 17 Ag-I I Om -2.24E-01 5.54£-0 1 1.84E+OO u WG W-5 420875002 4/17/2017 Ba-1 40 -7.2 1 E-0 2 1.92E+OO 6.1 9E+OO u WG W-5 420875002 4/17/2017 Be-7 -4.04E+OO 3.74E+OO l.14 E+O I V WG W-5 420875002 4/17/20 17 Ce-1 4 1 5.84E-01 8.1 I E-01 2.46 E+OO V WG W-5 420875002 4/17/2017 Ce-1 44 -7.34E-O I 2.86E+OO 9.64E+O O V WG W-5 420875002 4/17/20 1 7 Co-57 -3.20E-O l 3.90E-O I 1.28 E+OO u D-12 6 Do n ald C. Cook N u clear Plan t Annual Radiological Environmental Operating Report 2017 SAMPLE EN D CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WG W-5 420875002 4/17/2017 C o-58 6.03E-0 1 4.70E-OI 1.42 E+OO u WG W-5 420875002 4/17/20 1 7 Co-60 4.1 4E-Ol 4.SOE-0 1 l.61E+OO u WG W-5 420875002 4/17/20 1 7 C r-51 -3.94 E+OO 3.82 E+OO 1.19 E+O I u WG W-5 420875002 4/1 7/20 1 7 C s-1 34 3.60E-0 2 4.29E-01 l.46 E+OO u WG W-5 420875002 4/17/20 1 7 C s-1 37 -8.1 6E-0 1 4.91E-OI l.36E+OO u WG W-5 420875002 4/17/20 1 7 Fe-59 l.39E-01 8.12 E-OI 2.73E+OO u WG W-5 420875002 4/17/20 17 H-3 l.29E+03 5.30E+02 l.4 4E+03 u WG W-5 420875002 4/17/20 17 1-131 -5.36E-01 6.51 E-O I 2.0 6E+OO u WG W-5 420875002 4/17/20 1 7 K-4 0 -5.1 2E+OO 9.74E+OO l.70E+OI u WG W-5 420875002 4/17/20 1 7 La-1 40 l.4 2E+OO l.14 E+OO 2.1 5E+OO u WG W-5 4 2 087 5 002 4/1 7/20 1 7 Mn-54 -9.7 1 E-02 3.87E-Ol 1 JO E+OO u WG W-5 420875002 4/17/20 1 7 N b-95 -4.37E-0 1 4.36E-Ol I .40E+OO u WG W-5 4 20 8 75002 4/17/20 17 Ru-10 3 -8.27E-Ol 4.84E-OI l.36 E+OO u WG W-5 42087 5 002 4/17/20 1 7 R u-1 06 -3.45E+OO 4.18E+OO 1.28 E+O I u WG W-5 420875002 4/17/20 1 7 Sb-1 24 3.50E-01 l.1 5E+OO 3.80 E+OO u WG W-5 420 8 75002 4/17/20 17 S b-125 -7.83E-Ol 1.1 4E+OO 3.61 E+OO u WG W-5 420875002 4/17/2017 Se-75 8.44E-OI 6.02 E-OI l.94 E+OO u W G W-5 420 8 75002 4/17/2017 Th-228 1.5 2E+OO l.54E+OO 3.02 E+OO u W G W-5 420875002 4/17/20 17 Z n-65 -9.55E-OI I.OOE+OO 2.73 E+OO u W G W-5 420875002 4/17/20 1 7 Z r-95 -8.92E-OI 8.1 7E-O I 2.40E+OO u W G W-6 420875003 4/17/20 1 7 Ac-2 2 8 -3.72E+OO 2.96 E+OO 5.48 E+OO u W G W-6 420875003 4/17/2017 Ag-10 8 111 -1.9 1 E-01 3.I S E-01 1.04E+OO u W G W-6 420875003 4/17/20 1 7 A g-11 0 111 -6.69E-Ol 5.32E-Ol l.53 E+OO u W G W-6 420875003 4/17/20 17 Ba-140 3.16 E-01 1.65 E+OO 5.47E+OO u W G W-6 420875003 4/17/20 17 Be-7 -3.41E+OO 3.34E+OO l.05E+Ol u W G W-6 420 8 75003 4/17/20 17 C e-1 4 1 -5.44E-0 1 7.19 E-01 2.07 E+OO u W G W-6 420875003 4/17/20 1 7 C e-144 2.59E+OO 2.69E+OO 8.62 E+OO u W G W-6 420 8 75003 4/17/20 1 7 C o-57 -4.59E-OI 3.59E-OI 1.09E+OO u WG W-6 420 8 75003 4/17/20 17 C o-58 -3.99 E-O I 3.96 E-Ol 1.19E+OO u W G W-6 420875003 4/17/20 1 7 C o-60 -4.9 1 E-OI 4.5 1 E-O I 1.18E+OO u WG W-6 42087 5 003 4/17/20 1 7 C r-51 4.26E+OO 3.4 1 E+OO l.14 E+O I u WG W-6 420875003 4/17/20 1 7 Cs-1 34 3.9 1 E-O I 5.04E-OI I .47E+OO u WG W-6 420875003 4/17/20 1 7 C s-1 37 -8.74E-OI 5.06 E-O I l.23E+OO u WG W-6 420875003 4/17/20 1 7 Fe-59 -2.96E-0 1 6.97 E-OI 2.30 E+OO u WG W-6 420875003 4/17/20 1 7 H-3 9.58E+02 5.08 E+02 l.45 E+03 u WG W-6 420875003 4/17/20 1 7 l-131 -2.34E-OI 5.46E-OI 1.82 E+OO u WG W-6 420875003 4/17/20 17 K-40 -1.69E+O I 9.39 E+OO l.92 E+O I u WG W-6 420875003 4/17/20 17 L a-1 40 -7.60E-OI 6.0I E-0 1 l.75E+OO u WG W-6 42087500 3 4/17/20 17 M n-54 -1.66E-Ol 3.94 E-O I 1.24 E+OO u WG W-6 420 8 75003 4/17/20 1 7 Nb-95 -7.20E-O I 4.56E-OI 1.29 E+OO u WG W-6 420875003 4/17/20 1 7 Ru-1 03 -1.4 9E-O I 4.0SE-0 1 1.1 9 E+OO u WG W-6 420875003 4/1 7/20 1 7 Ru-1 06 3.96E+OO 4.59 E+OO l.03 E+Ol u WG W-6 420875003 4/17/20 1 7 Sb-1 24 1.8 2E-O I l.OI E+OO 3.3 1 E+OO u WG W-6 420875003 4/17/20 1 7 S b-1 25 5.97E-02 1.0 4E+OO 3.48 E+OO u WG W-6 420875003 4/17/20 1 7 S e-75 1.20E+OO 7.29E-OI l.64 E+OO u WG W-6 420875003 4/17/20 1 7 Th-228 l.99E+OO l.64E+OO 2.1 7E+OO u WG W-6 420875003 4/17/20 1 7 Z n-65 1.14 E+OO 7.62 E-OI 2.33 E+OO u W G W-6 420875003 4/17/20 1 7 Z r-95 l.26E+OO 7.23 E-O I 2.29 E+OO u W G W-2 428135002 7/13/2017 A c-2 2 8 -1.0SE+OO 4.3 1 E+OO 1.46 E+OI u W G W-2 428135002 7/13/20 17 A g-10 8 111 -6.7 1 E-01 7.87 E-OI 2.44E+OO u D-1 27 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WG W-2 428135002 7/13/20 1 7 A g-I I Om 2.1 I E+OO l.23E+OO 4.45E+OO u WG W-2 428135002 7/13/20 1 7 Ba-140 -J.62E+O I 8.05E+OO l.89E+OI u WG W-2 428 1 35002 7/13/20 1 7 Be-7 -6.47E+OO 8.63E+OO 2.69E+OI u WG W-2 428135002 7/13/20 1 7 C e-141 -4.57 E+OO 2.37E+OO 6.I IE+OO u WG W-2 428135002 7/13/20 1 7 C e-144 2.36E+OO 6.06E+OO 2.00E+OI u WG W-2 428135002 7/13/20 1 7 C o-57 1.21 E+OO 9.16£-01 3.02E+OO u WG W-2 428135002 7/1 3/20 1 7 C o-58 6.18 E-O I 9.0 I E-01 3.13E+OO u WG W-2 428135002 7/1 3/20 1 7 C o-60 -2.91 E-0 I 9.53£-0 1 3.08E+OO u WG W-2 4281 3 5002 7/13/20 1 7 C r-51 -4.48£-01 8.78 E+OO 3.0IE+OI u WG W-2 428 1 35002 7/13/20 1 7 Cs-1 34 5.98 E+OO 2.76E+OO 4.45E+OO Ul WG W-2 428 1 35002 7/1 3/20 1 7 Cs-1 3 7 -7.42£-0 1 9.72E-O I 2.92E+OO u WG W-2 428 1 3 5002 7/1 3/20 1 7 F e-59 -3.38 E+OO 2.43E+OO 5.79E+OO u WG W-2 428 1 35002 7/13/20 1 7 H-3 3.53E+02 4.1 5E+02 I .30E+03 u WG W-2 428 1 35002 7/13/20 1 7 1-1 3 1 l.64E+OO 3.1 8E+OO J.II E+OI u WG W-2 428 1 3 5002 7/13/20 1 7 K-40 -J.88E+O I l.42E+O I 4.69E+OI u WG W-2 428 1 3500 2 7/13/20 1 7 La-1 40 9.22£-0 1 2.09 E+OO 7.40E+OO u WG W-2 4 2 8135002 7/13/20 1 7 Mn-54 1.81 E-02 l.09 E+OO 3.55E+OO u WG W-2 428135002 7/13/20 1 7 Nb-95 -1.35E-O I 9.1 6£-01 2.94E+OO u WG W-2 42813500 2 7/1 3/2017 Ru-I 0 3 9.55 E-01 l.04 E+OO 3.66E+OO u WG W-2 42813500 2 7/1 3/20 1 7 Ru-I 0 6 3.94 E+OO 8.1 I E+OO 2.79E+O I u WG W-2 428 1 35002 7/13/20 1 7 Sb-124 1.6 1 E+OO 2.45E+OO 8.8 1 E+OO u WG W-2 4 2 81 3 500 2 7/13/20 1 7 Sb-125 8.75£-0 1 2.62E+OO 8.22E+OO u WG W-2 428135002 7/13/20 1 7 Se-75 2.08E+OO I .44E+OO 4.69E+OO u WG W-2 428 1 35002 7/13/20 1 7 Th-228 l.73E+OO 3.1 2E+OO 7.07E+OO u WG W-2 428 1 35002 7/13/20 1 7 Zn-65 -2.24E+OO 2.1 9E+OO 5.79E+OO u WG W-2 428135002 7/13/20 1 7 Z r-95 -J.24E+OO 1.97E+OO 5.98E+OO u WG W-3 428 1 3 5003 7/1 3/2017 Ac-2 2 8 2.63E-O I 5.05E+OO 1.76E+OI u WG W-3 428 1 35003 7/13/20 17 A g-108111 3.87£-0 1 1.1 6E+OO 3.88E+OO u WG W-3 428 1 35003 7/13/20 17 A g-I I Om 2.31£-0 1 1.46E+OO 4.72E+OO u WG W-3 42813500 3 7/13/20 1 7 Ba-14 0 2.85 E+OO 7.54E+OO 2.54E+OI u WG W-3 428 1 35003 7/13/20 1 7 Be-7 -4.35E+OO 1.06E+O I 2.93E+OI u WG W-3 428135003 7/1 3/20 1 7 C e-141 5.84E+OO 3.37 E+OO 8.45E+OO u WG W-3 428135003 7/13/20 1 7 C e-144 -1.33E+O I 9.97E+OO 2.74E+OI u WG W-3 428135003 7/1 3/20 1 7 C o-57 l.60E+OO l.25E+OO 3.96E+OO u WG W-3 428135003 7/1 3/20 1 7 C o-58 4.21£-0 1 I.1 9E+OO 3.93E+OO u WG W-3 428 1 35003 7/13/20 1 7 Co-60 2.54£-0 1 l.05E+OO 3.60E+OO u WG W-3 428 1 35003 7/13/20 1 7 C r-5 1 6.14E+OO I.34E+O I 4.57E+OI u WG W-3 428 1 35003 7/13/20 1 7 Cs-1 3 4 1.29E+OO l.42E+OO 4.83E+OO u WG W-3 428 1 35003 7/13/20 1 7 Cs-1 3 7 1.44E+OO l.2 1 E+OO 4.1 9 E+OO u WG W-3 4 2 8135003 7/13/20 1 7 F e-5 9 -3.91 E-0 I 2.26E+OO 7.43 E+OO u WG W-3 4 2 8135003 7/13/20 1 7 H-3 l.91E+02 4.06E+02 l.30E+03 u WG W-3 428135003 7/1 3/2017 1-131 4.69E+OO 4.1 7 E+OO 1.43E+OI u WG W-3 4281350 0 3 7/13/2017 K-40 l.27E+OI I.7 1 E+OI 6.36 E+OI u WG W-3 428135003 7/1 3/20 1 7 La-1 40 -3.19E+OO 2.4 1 E+OO 5.37E+OO u WG W-3 428135003 7/13/20 1 7 Mn-54 6.97E-OI l.27E+OO 4.20 E+OO u WG W-3 428 1 35003 7/1 3/20 1 7 Nb-95 -5.05£-01 l.40E+OO 4.23E+OO u WG W-3 428 1 3500 3 7/1 3/20 1 7 Ru-1 0 3 -8.72£-0 1 I .44E+OO 4.46E+OO u WG W-3 4 2 8 1 35003 7/13/20 17 R u-1 0 6 J.29E+O I 9.50E+OO 3.34E+OI u WG W-3 428 1 35003 7/13/20 1 7 S b-1 24 -l.58E+OO 2.65E+OO 7.63E+OO u WG W-3 428 1 3500 3 7/13/20 1 7 Sb-125 -5.59E+OO 3.59E+OO 9.73E+OO u 0-128 Donal d C. Cook Nuclear Pl a n t Annu a l Radiological Envi r onmental Operating Report 2017 SAMPLE E ND CONC STD.DEV. MDC FLAGS TYP E STATION LSN DAT E NUCLID E (pCi/L) (pCi/L) (pC i/L) WG W-3 428135003 7/13/2017 Se-75 1.03 E+OO l.57E+OO 5.39E+OO u WG W-3 428135003 7/13/2017 T h-22 8 l.94E+OO 3.30E+OO 8.14E+OO u WG W-3 428135003 7/1 3/20 1 7 Z n-65 -6.66£-01 2.32 E+OO 7.53 E+OO u WG W-3 428135003 7/13/20 1 7 Z r-95 1.2 1 E+OO 2.37E+OO 7.22E+OO u WG W-9 428 1 35005 7/13/20 1 7 Ac-228 7.3 1 E+OO 7.75 E+OO 2.06E+O l u WG W-9 42 8 1 35005 7/13/20 1 7 Ag-1 08m 7.08E-OI l.02E+OO 3.52E+OO u WG W-9 428135005 7/13/20 1 7 Ag-1 10111 3.01 E-01 l.77E+OO 5.78E+OO u WG W-9 428135005 7/13/2017 Ba-1 40 -I .08 E+O I I .07 E+O I 3.12 E+O I u WG W-9 428135005 7/13/2017 Be-7 -7.19 E+OO I.23E+O I 3.6 1 E+OI u W G W-9 428135005 7/13/2017 Ce-141 -4.65E+OO 3.58E+OO 9.9 1 E+OO u W G W-9 428135005 7/13/20 1 7 Ce-1 44 9.23E+OO 9.07 E+OO 3.14 E+O I u WG W-9 428135005 7/13/20 1 7 Co-57 6.1 3E-OI l.25 E+OO 4.34E+OO u WG W-9 428135005 7/13/2017 Co-58 -6.84E-OI l.3 0 E+OO 3.87E+OO u WG W-9 428135005 7/13/20 1 7 Co-60 2.62E-OI I.1 4E+OO 3.96E+OO u W G W-9 428135005 7/13/20 1 7 C r-51 -6.63E+OO 1.60E+O I 5.22E+Ol u W G W-9 428 1 35005 7/1 3/2017 Cs-134 -1.70E+OO I.68E+OO 4.73E+OO u W G W-9 428135005 7/13/20 1 7 Cs-137 l.0 5 E+OO l.l6 E+OO 4.07E+OO u W G W-9 428 1 35005 7/13/20 1 7 Fe-5 9 -2.55E+OO 3.3 IE+OO 9.26E+OO u W G W-9 428 1 35005 7/13/2017 H-3 -5.0I E+O I 3.94 E+02 l.3 1 E+03 u W G W-9 428135005 7/13/2017 1-1 3 1 -2.41 E+OO 4.36E+OO J.39E+O I u WG W-9 428135005 7/13/20 1 7 K-40 -I.91 E+O I I .9 5 E+O I 5.8 5E+OI u W G W-9 428 1 35005 7/1 3/2017 La-140 -4.04E+OO 3.59 E+OO 9.6 1 E+OO u W G W-9 428135005 7/13/2017 Mn-54 l.24 E+OO l.28E+OO 4.45E+OO u WG W-9 428135005 7/1 3/20 1 7 N b-95 5.39E+OO J.76E+OO 4.42E+OO UI WG W-9 428135005 7/1 3/20 1 7 Ru-103 -8.02 E-02 l.36E+O O 4.45E+OO u WG W-9 428135005 7/1 3/2017 Ru-106 2.27E+OI J.32 E+O I 2.77E+OI u WG W-9 428135005 7/13/2017 Sb-1 24 -3.98E+OO 3.45 E+OO 8.78E+OO u WG W-9 428135005 7/13/2017 Sb-12 5 2.51E+OO 3.06E+OO l.06 E+OI u WG W-9 428135005 7/13/20 1 7 Se-75 -3.22E-OI l.79 E+OO 5.99E+OO u WG W-9 428 1 3500 5 7/1 3/2017 T h-228 -4.85E-01 3.24 E+OO 9.78E+OO u WG W-9 428135005 7/13/2017 Z n-65 -2.03 E+OO 2.76 E+OO 7.67E+O O u WG W-9 428135005 7/13/20 1 7 Z r-95 -4.77E-OI 2.65 E+OO 8.43£+00 u WG SG-1 4281350 1 3 7/13/2017 Ac-228 -4.00E+OO 5.99E+OO l.85E+O I u WG SG-1 428135013 7/13/2017 Ag-10 8 m -7.51 E-01 l.03E+OO 3.2 1 E+OO u WG SG-1 428135013 7/1 3/20 1 7 Ag-1 lOm -I.1 6E-01 J.30 E+OO 4.35 E+OO u WG SG-1 428 1 350 1 3 7/13/2017 ALPHA -l.12E+OO 2.34E+OO 7.9 1 E+O O u DL WG SG-1 428 1 350 1 3 7/1 3/2017 B a-1 40 -5.49 E+OO 8.56E+OO 2.6 1 E+O I u WG SG-1 428 1 350 1 3 7/13/2017 Be-7 l.50 E+O I l.15 E+O I 3.95E+O I u W G SG-1 4281 350 13 7/13/2017 BETA 7.95E+OO l.35E+OO 3.II E+OO W G SG-1 4281350 1 3 7/13/20 1 7 Ce-1 4 1 4.46E+OO 3.88E+OO 7.3 4E+OO u W G SG-1 428135013 7/13/20 1 7 Ce-144 l.23 E+OO 7.74 E+OO 2.51E+O I u W G SG-1 428135013 7/13/2017 Co-57 -I.06E-OI 1.06E+OO 3.40E+OO u W G SG-1 428135013 7/13/20 1 7 Co-58 -4.48£-01 l.1 4E+OO 3.74£+00 u W G SG-1 428135013 7/13/20 1 7 Co-60 8.20£-01 1.1 5E+OO 3.70E+OO u W G SG-1 428135013 7/13/20 1 7 Cr-51 -1.29 E+OO I.27 E+O I 4.26E+O I u W G SG-1 428135013 7/13/20 1 7 Cs-1 34 -3.93E-OI 1.2 4 E+OO 3.79E+OO u WG SG-1 428 1 350 13 7/1 3/2017 Cs-13 7 -8.28E-OI l.1 8E+OO 3.47E+OO u WG SG-1 428135013 7/1 3/20 17 Fe-59 I .57E-O I 2.41 E+OO 8.06E+OO u WG SG-1 428135013 7/13/2017 H-3 9.54E+0 2 4.5 1 E+02 l.3 0E+03 u WG SG-1 428135013 7/1 3/20 17 1-1 3 1 -2.16£+00 4.03 E+OO l.3 0E+O l u D-129 Donald C. Cook Nuclear Plan t Annual Radiological Environmental Operating Report 2 017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DAT E NUCLIDE (pCi/L) (pC i/L) (pCi/L) WG SG-1 428 1 350 1 3 7/13/2017 K-40 -6.7 6E+OO 1.72 E+O I 5.66 E+O I u WG SG-1 428 1 350 1 3 7/13/20 1 7 La-1 40 1.1 2E+OO 3.21E+OO l.08 E+O I u WG SG-1 428 1 350 1 3 7/13/20 17 Mn-54 9.98E-01 1.1 3E+OO 4.04E+OO u WG SG-1 428 1 3 5013 7/13/20 17 Nb-95 l.47E+OO l.52E+OO 5. IO E+OO u WG SG-1 428 1 350 1 3 7/13/20 17 Ru-103 -l.57 E+OO 1.51E+OO 4.45E+OO u WG SG-1 428 1 350 1 3 7/13/20 17 Ru-106 -9.17 E+OO 1.29E+OI 3.36E+O I u WG SG-1 428 1 35013 7/13/20 1 7 Sb-1 24 4.44E+OO 3.88E+OO l.37E+OI u WG SG-1 428 1 350 1 3 7/13/20 17 Sb-125 2.62 E+OO 2.79E+OO 9.69E+OO u WG SG-1 428 1 35013 7/1 3/2017 Se-7 5 3.48E-OI l.40E+OO 4.86E+OO u WG SG-1 428135013 7/13/20 1 7 Th-228 3.75E+OO 3.58E+OO 6.87E+OO u WG SG-1 4281350 1 3 7/13/2017 Z n-65 -1.88E+OO 2.39E+OO 7.13E+OO u WG SG-1 428 1 35013 7/13/2017 Zr-95 -7.46 E-OI 2.06E+OO 6.25E+OO u WG SG-2 428135014 7/13/20 1 7 Ac-228 9.46E+OO 5.34E+OO 1.1 4E+OI u WG SG-2 428 1 35014 7/13/20 1 7 Ag-108m -1.0SE+OO 8.65E-OI 2.50E+OO u WG SG-2 428 1 35014 7/1 3/20 1 7 Ag-11 0111 4.71E-OI 1.55E+OO 5.04E+OO u WG SG-2 428 1 35014 7/1 3/20 17 ALPHA -3.65E-0 2 I .48E+OO 4.86E+OO u DL WG SG-2 4281350 1 4 7/13/2017 Ba-140 7.08 E+OO 7.48 E+OO 2.58 E+O I u WG SG-2 428 1 350 1 4 7/13/2017 Be-7 7.89E+OO 8.94E+OO 3.08E+O I u WG SG-2 428 1 350 14 7/1 3/20 1 7 B ETA 5.26E+OO l.3 1 E+OO 3.80E+OO WG SG-2 428 1 35014 7/13/2017 Ce-1 4 1 5.33E+OO 3.03E+OO 6.90E+OO u WG SG-2 428 1 35014 7/13/2017 Ce-1 44 7.66E-OI 7.05E+OO 2.25E+O I u WG SG-2 428135014 7/13/2017 Co-57 7.45 E-0 2 9.24E-Ol 2.96E+OO u WG SG-2 428 1 350 1 4 7/13/2017 Co-58 -1.6 4E-O 1 l .18 E+OO 3.65E+OO u WG SG-2 428 1 350 1 4 7/13/2017 Co-60 l.98 E+OO 1.29E+OO 4.1 I E+OO u WG SG-2 428 1 350 1 4 7/13/20 17 C r-51 1.4 3E+O O 1.1 3 E+O l 3.85E+O I u WG SG-2 428 1 350 1 4 7/13/2017 Cs-13 4 2.93 E+OO 1.74 E+OO 3.89E+OO u WG SG-2 428135014 7/13/2017 Cs-1 37 7.91E-01 l.08E+OO 3.66E+OO u WG SG-2 428 1 350 1 4 7/13/2017 Fe-59 -1.14 E+OO 2.15 E+OO 6.73E+OO u WG SG-2 428 1 35014 7/13/20 1 7 H-3 5.46 E+OI 3.90E+02 1.27E+03 u WG SG-2 428 1 350 1 4 7/13/2017 1-1 3 1 -2.00E+OO 3.27E+OO l.04 E+O I u WG SG-2 428 13 50 1 4 7/13/20 1 7 K-40 3.76E+OO 1.77 E+OI 5.97E+O I u WG SG-2 428135014 7/13/2017 La-140 -2.67E+OO 2.9 5 E+OO 6.59E+OO u WG SG-2 428135014 7/13/20 1 7 Mn-54 -1.2 1 E+OO 9.52E-0 1 2.41E+OO u WG SG-2 428135014 7/13/20 1 7 Nb-95 -2.86E-01 l.05E+OO 3.25E+OO u WG SG-2 428135014 7/13/2017 Ru-103 2.33E+OO l.3 4E+OO 4.28E+OO u WG SG-2 428135014 7/1 3/2017 Ru-1 06 2.19 E+OO 8.51E+OO 2.82 E+O l u WG SG-2 428135014 7/13/20 1 7 Sb-1 24 -1.7 6E+OO 2.68 E+OO 7.74E+OO u WG SG-2 428 1 35014 7/13/20 17 S b-1 25 2.90 E+OO 2.87E+OO 9.88E+OO u WG SG-2 428 1 35014 7/13/2 017 Se-7 5 -6. I 2E-O I l.19E+OO 3.90E+OO u WG SG-2 428135014 7/13/20 1 7 T h-228 -6.47E-OI 2.09E+OO 6.78 E+OO u WG SG-2 428135014 7/13/20 17 Z n-65 -3.09E+OO 2.17E+OO 5.69 E+OO u WG SG-2 428135014 7/13/20 17 Z r-95 6.68E+OO 2.79 E+OO 6.71E+OO u WG SG-4 428 1 350 1 5 7/13/2017 Ac-228 -5.44E+OO 4.70E+OO l.4 6E+O l u WG SG-4 428 1 350 1 5 7/1 3/20 1 7 Ag-108111

-2.77E-0 2 9.35E-01 2.76E+OO u WG SG-4 428 1 350 1 5 7/13/20 1 7 Ag-110111

-1.67E+OO I .43E+OO 4.13 E+OO u WG SG-4 42813501 5 7/13/20 1 7 ALPHA -9.I I E-01 l.83 E+OO 5.91E+OO u DL WG SG-4 428135015 7/1 3/20 1 7 Ba-140 4.41E+OO 7.89E+OO 2.66E+O I u WG SG-4 428135015 7/13/2017 Be-7 6.60E+OO l.06 E+O I 3.59E+O I u WG SG-4 428 1 350 1 5 7/13/2017 BETA 5.12E+OO l.23 E+OO 3.52 E+OO WG SG-4 428135015 7/13/20 1 7 Ce-141 6.48E-O I 2.40 E+OO 6.97E+OO u D-130 Do n ald C. Cook Nuclear Pl a nt Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pC i/L) WG SG-4 428135015 7/13/20 17 Ce-14 4 2.I I E+OO 7.16E+OO 2.32E+O I u WG SG-4 4281350 1 5 7/13/20 17 Co-57 -6.56E-O l 8.89E-0 1 2.72E+OO u WG SG-4 428135015 7/13/20 1 7 Co-58 -5.46E-O I l.1 5E+OO 3.74E+OO u WG SG-4 428135015 7/13/20 1 7 Co-60 -I .28E+OO 1.29E+OO 3.65E+OO u WG SG-4 4281350 1 5 7/13/20 1 7 C r-5 1 1.48E+OO l.0 4E+O l 3.54E+O l u WG SG-4 4281350 1 5 7/13/20 1 7 Cs-1 34 -I .35E+OO l.20E+OO 3.50 E+OO u WG SG-4 4281350 1 5 7/13/20 17 Cs-1 37 l.1 6E+OO l.30E+OO 3.32E+OO u WG SG-4 4281350 1 5 7/13/20 1 7 Fe-59 -3.07E+OO 2.58E+OO 7.25E+OO u WG SG-4 4281350 1 5 7/13/20 1 7 H-3 3.1 2E+02 4.13E+02 l.3 0E+03 u WG SG-4 4281350 1 5 7/13/20 1 7 1-13 1 -5.34E+OO 3.58E+OO 1.0IE+OI u WG SG-4 428 1 350 15 7/1 3/20 1 7 K-40 2.3 1 E+O I 2.09 E+OI 3.20E+O I u WG SG-4 428135015 7/13/20 17 La-140 -1.6 9E+OO 3.33E+OO l.OOE+OI u WG SG-4 428 1 350 1 5 7/13/20 1 7 Mn-54 8.12E-OI l.07E+OO 3.77E+OO u WG SG-4 428135015 7/13/20 17 N b-95 -3.3 6E-OI l.12E+OO 3.36E+OO u WG SG-4 428135015 7/13/20 17 Ru-I 03 4.95E-02 l.40E+OO 4.58E+OO u WG SG-4 4281350 15 7/13/20 17 Ru-I 06 1.1 I E+Ol l.OI E+O I 3.41E+OI u WG SG-4 428135015 7/13/20 17 S b-1 24 5.6 4E-OI 2.9 7E+OO l.02E+OI u WG SG-4 4281350 1 5 7/13/20 17 Sb-1 25 7.1 3E+OO 3.39E+OO 9.27E+OO u W G SG-4 428135015 7/13/20 1 7 Se-75 l.31E+OO 1.34E+OO 4.67E+OO u W G SG-4 4281350 1 5 7/13/20 17 T h-228 2.88E+OO 3.47E+OO 7.26E+O O u W G SG-4 428135015 7/13/20 1 7 Z n-65 -2.77E+OO 2.1 I E+OO 5.64E+OO u W G SG-4 428135015 7/13/20 1 7 Zr-95 l.68E+OO 2.0 5E+OO 6.87E+OO u W G SG-5 4281350 1 6 7/13/20 17 Ac-228 3.1 8E+OO 5.40 E+OO I .69E+O I u W G SG-5 428135016 7/13/20 1 7 Ag-108 m -5.55 E-Ol 9.28 E-01 2.95E+OO u W G SG-5 4281350 1 6 7/1 3/20 17 Ag-11 0 111 -6.52E-OI l.05 E+OO 2.75E+OO u W G SG-5 428135016 7/13/20 17 ALPHA l.13 E+OO l.37E+OO 4.20E+OO u DL W G SG-5 428135016 7/13/20 17 Ba-14 0 -l.38 E+OO 7.48E+OO 2.43E+O I u W G SG-5 4281350 1 6 7/13/20 1 7 Be-7 -l.94E+OO 8.87E+OO 2.57£+0 1 u WG SG-5 428135016 7/13/20 1 7 BETA 3.1 7 E+OO 7.78E-O I 2.14E+OO M WG SG-5 428135016 7/13/20 17 Ce-141 3.08E+OO 3.00E+OO 6.13E+OO u WG SG-5 428135016 7/13/20 17 Ce-1 44 7.1 6E+OO 7.73E+OO 2.37E+O I u WG SG-5 428135016 7/13/20 1 7 Co-5 7 6.94E-O I 9.32E-OI 3.07E+OO u WG SG-5 428135016 7/1 3/20 17 Co-58 -4.03E-OI I.3JE+OO 3.55E+O O u WG SG-5 428135016 7/13/20 1 7 Co-60 -9.54E-02 1.1 2E+OO 3.67E+OO u WG SG-5 428135016 7/1 3/20 1 7 C r-5 1 1.34E+OI 1.16E+OI 4.03 E+OI u WG SG-5 4281350 1 6 7/13/20 17 Cs-134 5.85E-03 1.02 E+OO 3.28E+OO u WG SG-5 428135016 7/13/2017 Cs-1 37 5.l l E-01 9.84E-0 1 3.34E+OO u WG SG-5 4281 350 1 6 7/13/20 1 7 Fe-59 3.08E-OI 2.21E+OO 7.53E+OO u WG SG-5 428135016 7/1 3/20 1 7 H-3 2.30E+02 3.88 E+02 l.24E+03 u WG SG-5 4281 350 1 6 7/1 3/20 17 1-131 3.27E-OI 4.08E+OO I .27E+O I u WG SG-5 428135016 7/13/20 1 7 K-40 1.I OE+O I 1.51 E+OI 5.26 E+Ol u WG SG-5 428135016 7/13/20 17 La-140 l.76E+OO 2.40 E+OO 8.59E+OO u WG SG-5 428135016 7/13/20 17 M n-5 4 -2.87E-OI l.1 6E+OO 3.62E+OO u WG SG-5 4281350 1 6 7/13/20 17 Nb-95 -l.65E+OO 1.4 1 E+OO 3.80E+OO u WG SG-5 4281350 1 6 7/13/20 1 7 R u-1 03 6.32E-01 l.32E+OO 4.48E+OO u WG SG-5 428135016 7/13/20 17 R u-1 06 -2.73E+OI l.36 E+OI 2.53E+O l u WG SG-5 42813 50 1 6 7/13/20 1 7 Sb-124 -2.60£+00 2.51E+OO 6.33£+00 u WG SG-5 428135016 7/13/2017 Sb-1 25 2.08E+OO 3.08E+OO l.06 E+OI u WG SG-5 4281350 1 6 7/13/20 1 7 Se-75 -4.6 4£-01 l.53E+OO 5.18E+OO u WG SG-5 428 1 350 1 6 7/13/20 1 7 Th-228 2.58E+OO 3.04E+OO 7.35E+OO u D-13 1 Dona ld C. Cook Nuclear Plant Annual Rad i ological Environmen t al Operating Report 2 017 SAMPLE END CONC ST D.D EV. MDC FLAGS TYPE STATION LSN DAT E NUCLIDE (pCi/L) (pCi/L) (pCi/L) WG SG-5 428 1 350 1 6 7/13/2 017 Z n-65 -2.14 E-02 2.23E+OO 7.48 E+OO u WG SG-5 428 1 350 1 6 7/1 3/20 1 7 Zr-9 5 3.49E+OO 2.33E+OO 7.99 E+OO u WG W-1 428 1 3500 1 7/14/20 1 7 Ac-228 l.64E+OO 5.14 E+OO l.71 E+O I u WG W-1 428 1 3500 1 7/14/20 1 7 Ag-1 08m -4.02E-02 1.07E+OO 3.1 6E+OO u WG W-1 428 1 3500 1 7/14/2 0 1 7 Ag-I I Om l.27 E+OO 1.3 1 E+OO 4.74E+OO u WG W-1 428 1 3500 1 7/14/20 1 7 Ba-1 40 l.52 E-O I 7.33E+OO 2.40E+O I u WG W-1 428 1 3500 1 7/14/20 1 7 Be-7 -1.45E+O I l.1 3E+O I 3.1 7 E+O I u WG W-1 428135001 7/14/20 1 7 Ce-141 l.87 E+OO 3.76E+OO 7.37 E+OO u WG W-1 42813500 1 7/14/20 1 7 Ce-144 l.02E+O I 9.97E+OO 2.42E+O I u WG W-1 428135001 7/14/20 1 7 Co-57 5.64E-O I l.13 E+OO 3.45E+OO u WG W-1 428 1 3500 1 7/14/20 17 Co-58 -3.22E-O I l.03E+OO 3.37E+OO u WG W-1 42813500 1 7/14/20 1 7 Co-60 -8.45E-OI l.22E+OO 3.58 E+OO u WG W-1 428 1 3500 1 7/1 4/20 1 7 C r-51 -2.47E+OO 1.17 E+O I 3.90 E+OI u WG W-1 428 1 3500 1 7/1 4/20 1 7 Cs-134 l.82E+OO 1.30 E+OO 4.48 E+OO u WG W-1 428 1 3500 1 7/14/20 17 Cs-1 37 -1.24 E+OO l.20E+OO 3.34 E+OO u WG W-1 428 1 3500 1 7/14/2017 Fe-59 2.36E+OO 2.77 E+OO 9.75 E+OO u WG W-1 428 1 35001 7/14/20 1 7 H-3 4.67E+02 4.1 9E+02 1.29E+03 u WG W-1 428 1 3500 1 7/1 4/20 1 7 1-1 3 1 -6.04E+OO 3.54E+OO 9.49 E+OO u WG W-1 428 1 3500 1 7/14/20 1 7 K-40 -2.60 E+O I 1.7 1 E+OI 4.69E+OI u WG W-1 428 1 3500 1 7/14/20 17 L a-1 40 -3.40 E+OO 2.58E+OO 5.86E+OO u WG W-1 428 1 35001 7/14/20 1 7 Mn-54 -l.l 6E-0 1 7.47£-01 2.49E+OO u WG W-1 428135001 7/14/20 1 7 N b-9 5 l.25E+OO 1.16 E+OO 3.9 9£+00 u WG W-1 428 1 3500 1 7/14/2 0 1 7 R u-I 03 -l.48E+OO 1.49£+00 4.41 E+OO u WG W-1 428 1 3500 1 7/14/20 1 7 Ru-I 06 -8.50£+00 I .29E+OI 3.39£+01 u WG W-1 428 1 3500 1 7/1 4/20 1 7 Sb-1 24 -l.06E+OO 3.54E+OO 1.0 8£+0 1 u WG W-1 428 1 3500 1 7/1 4/20 1 7 Sb-1 25 3.39E+OO 3.35E+OO l.0 6E+OI u WG W-1 428 1 35001 7/14/20 17 Se-75 -1.89E+OO l.60E+OO 4.95E+OO u WG W-1 428 1 3500 1 7/14/20 1 7 Th-228 -1.0 I E+OO 2.1 9£+00 7.19 E+OO u WG W-1 428 1 3500 1 7/14/20 1 7 Zn-65 -5.61 E-0 I 2.28E+OO 7.36E+OO u WG W-1 42813500 1 7/14/2017 Z r-95 1.1 0£+00 2.31 E+OO 7.64£+00 u WG W-7 428 1 35004 7/1 4/20 1 7 Ac-228 1.1 6E+OO 6.34E+OO l.98 E+Ol u WG W-7 428 1 35004 7/14/20 1 7 Ag-1 08m 7.45E-O l 1.23£+00 4.2 0 E+OO u WG W-7 428 1 35004 7/14/2017 Ag-I !Om 9.77£-0 2 l.68E+OO 5.67£+00 u WG W-7 428 1 35004 7/1 4/20 1 7 Ba-1 40 -4.60E+OO l.21 E+O I 3.24£+01 u WG W-7 428 1 35004 7/1 4/20 1 7 Be-7 3.72E+OO l.26E+O I 4.26E+O l u WG W-7 428 1 35004 7/1 4/20 17 Ce-1 4 1 2.16 E+OO 2.26E+OO 7.56 E+OO u WG W-7 428 1 35004 7/14/20 1 7 Ce-1 44 7.3 1 E+OO 7.43E+OO 2.50E+Ol u WG W-7 428 1 35004 7/14/20 1 7 Co-57 8.61 E-0 2 8.50E-OI 2.86 E+OO u WG W-7 428 1 35004 7/14/20 17 Co-58 5.69 E-OI l.37E+OO 4.79 E+OO u WG W-7 428135004 7/14/20 1 7 Co-60 3.07£+00 l.56E+OO 5.61 E+OO u WG W-7 428 1 35004 7/14/20 1 7 C r-5 1 -3.33E+OO 1.37£+0 1 4.65E+O I u WG W-7 428 1 35004 7/1 4/20 17 Cs-134 -5.87 E-O I 1.4 4£+00 4.69£+00 u WG W-7 428 1 35004 7/1 4/20 17 Cs-13 7 -8.40E-OI 1.41 E+OO 3.68 E+OO u WG W-7 428135004 7/14/20 17 Fe-59 -1.1 9£+00 3.1 2E+OO 9.85£+00 u WG W-7 428 1 35004 7/14/20 1 7 H-3 8.60£+02 4.5 1 E+02 I .3 2 E+03 u WG W-7 4 28 1 35004 7/14/20 17 1-1 3 1 3.75 E+O O 4.1 6E+OO 1.4 5E+O I u WG W-7 428 1 35004 7/14/20 17 K-40 -3.14E+OI 1.86E+OI 5.97£+0 1 u WG W-7 428 1 35004 7/14/20 17 La-14 0 -4.50E+OO 3.16£+00 7.78E+OO u WG W-7 428135004 7/14/20 17 Mn-54 5.55£-0 1 1.20 E+OO 4.1 8 E+OO u WG W-7 428 1 35004 7/1 4/20 1 7 Nb-95 4.88E-O I 1.4 6E+OO 4.3 0£+00 u D-1 3 2 Do n ald C. Cook Nuclear Plant Annu al Radiological Env i ronmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LS N DATE NUCLIDE (pCi/L) (pCi/L) (pC i/L) WG W-7 428135004 7/14/2017 R u-1 03 -4.38E-OI l.63E+O O 5.29E+OO u WG W-7 428135004 7/14/20 17 R u-10 6 9.16 E+OO l.32 E+OI 4.45E+O I u WG W-7 428135004 7/14/20 17 Sb-1 24 6.13E-01 3.36E+OO l.15 E+Ol u WG W-7 428135004 7/14/20 1 7 Sb-1 25 -3.97E-OI 3.76E+OO l.25E+OI u WG W-7 428135004 7/1 4/20 17 Se-75 -5.3 I E-Ol l.78E+OO 5.48E+OO u WG W-7 428 1 35004 7/14/20 17 T h-228 8.1 3E+OO 5.42 E+OO 8.27E+OO u WG W-7 428 1 35004 7/14/20 17 Z n-65 -l.41 E+OO 2.83 E+OO 8.76E+OO u WG W-7 428 1 35004 7/14/20 17 Z r-95 1.66E+OO 2.20E+OO 7.48E+OO u WG W-10 428 1 35006 7/14/20 1 7 Ac-228 -l.96E+OO 5.90E+OO 1.78E+OI u WG W-10 428135006 7/14/20 17 Ag-1 08 m 2.38£-0 2 I.I OE+OO 3.62E+OO u WG W-10 428135006 7/14/20 1 7 Ag-II O m 4.80E-OI l.41 E+OO 4.90E+OO u WG W-10 428135006 7/14/2 017 Ba-140 -1.81 E+OO 7.96E+O O 2.51E+OI u WG W-10 428 1 35006 7/14/20 1 7 Be-7 -1.38 E+O I l.1 6E+O I 3.25E+O I u WG W-10 428135006 7/14/2017 Ce-1 4 1 -3.42 E+OO 2.79E+OO 7.79E+OO u WG W-10 428135006 7/1 4/20 1 7 Ce-1 44 -7.63E+OO. 9.0 I E+OO 2.65E+O I u WG W-10 428 1 35006 7/14/20 17 Co-57 8.80£-01 l.1 9E+OO 3.82E+OO u WG W-1 0 428135006 7/14/20 1 7 Co-58 -7.09 E-OI l.24E+OO 3.85E+OO u WG W-10 428135006 7/14/20 17 Co-60 4.90 E-OI l.0 6E+OO 3.69E+OO u WG W-10 428 1 35006 7/14/20 17 C r-5 1 5.82E+OO l.2 5E+O l 4.27E+O I u WG W-10 428 1 35006 7/14/20 17 Cs-134 l.9 3E+OO l.35E+OO 4.84E+OO u WG W-10 428135006 7/14/20 17 Cs-1 37 -5.96£-01 l.54 E+OO 4.02E+OO u WG W-10 428135006 7/14/20 17 Fe-59 -2.33E+OO 2.69E+OO 7.75E+OO u WG W-10 428135006 7/14/20 17 H-3 2.36E+02 4.IO E+02 1.31E+03 u WG W-1 0 428 1 35006 7/14/20 17 1-1 31 3.1 3E+OO 3.69E+OO 1.27E+OI u WG W-10 428135006 7/14/20 1 7 K-40 -8.60E+OO l.83E+O I 5.58E+O I u WG W-10 428135006 7/14/20 17 La-1 40 -7.53£-01 2.76E+OO 8.40E+OO u W G W-1 0 428135006 7/14/2017 M n-54 l.94 E+OO l.0 2E+OO 3.62E+OO u W G W-10 428135006 7/14/20 17 Nb-95 3.20£-01 I .55E+OO 4.89E+OO u W G W-10 428135006 7/14/2 017 Ru-1 03 2.65E+OO 2.28E+O O 5.99E+OO u W G W-10 428135006 7/1 4/20 1 7 Ru-1 06 2.34E+OO l.1 2E+O I 3.64E+O I u W G W-10 428135006 7/14/20 1 7 Sb-1 24 -1.98 E+OO 3.52E+OO l.09E+O I u W G W-1 0 428 1 35006 7/14/20 17 Sb-1 25 3.76E+OO 3.25E+OO I.I I E+O I u W G W-10 428135006 7/14/20 17 Se-7 5 -I .07E+OO l.75 E+OO 5.65E+OO u W G W-1 0 428135006 7/1 4/20 1 7 Th-228 8.57E+OO 3.46E+OO l.03E+OI u W G W-10 428135006 7/14/20 17 Zn-65 1.79£-01 3.1 8E+OO 9.28E+OO u W G W-1 0 428135006 7/14/20 1 7 Z r-95 4.92E-01 2.37E+OO 7.27E+OO u WG W-11 428135007 7/14/20 1 7 Ac-228 3.98E+OO 6.56E+OO 2.25E+OI u W G W-11 428135007 7/1 4/20 17 Ag-1 08 m -1.45 E+OO l.08E+OO 3.04E+OO u W G W-11 428135007 7/14/20 17 Ag-I I O m -l.lO E-02 I.69E+OO 5.73E+OO u W G W-11 428 1 35007 7/14/20 17 Ba-140 l.28E+O I 9.18 E+OO 3.2 1 E+O I u WG W-11 428135007 7/14/20 1 7 Be-7 1.63E+Ol I.O lE+O l 3.59E+O I u WG W-11 428 1 35007 7/14/20 17 Ce-1 4 1 5.80 E+OO 2.64E+OO 6.04E+OO u WG W-11 428 1 35007 7/14/20 1 7 Ce-1 44 -9.31E+OO 8.15 E+OO 2.42E+O I u WG W-1 1 428135007 7/1 4/20 17 Co-57 -3.84E-OI I.OSE+OO 3.39E+OO u WG W-1 1 428135007 7/14/20 1 7 Co-58 -l.1 6E-0 1 l.0 3E+OO 3.23E+OO u WG W-11 4281 35007 7/1 4/20 1 7 Co-60 -1.78E+OO 1.29E+OO 2.99E+OO u WG W-1 1 428135007 7/14/20 1 7 C r-5 1 -l.9 6E+O l l.30E+O I 3.72E+O I u WG W-1 1 428135007 7/14/20 1 7 Cs-1 34 -l.0 3E+OO 1.1 2E+OO 2.98E+OO u WG W-1 1 428135007 7/14/20 1 7 Cs-137 -5.70 E-OI 1.32E+OO 4.08E+OO u WG W-11 428135007 7/14/20 1 7 Fe-59 -4.1 9E+OO 2.86E+OO 7.12E+OO u D-1 33 Donald C. Cook Nuclear Plant Annual Rad i ological Environmental Operat i n g Report 2 017 SAMPLE E ND CONC STD.D E V. MDC FLAGS TYPE STATION LSN D ATE NUCL ID E (pCi/L) (pCi/L) (pCi/L) WG W-11 428 1 35007 7/14/20 1 7 H-3 2.42E+02 4.1 3E+02 l.32E+03 u WG W-11 428 1 35007 7/14/20 1 7 1-13 1 -8.32E-O I 3.44E+OO l.1 4E+O I u WG W-11 428 1 35007 7/14/20 1 7 K-40 3.88E+OO l.58E+O I 5.3 1 E+O I u WG W-1 1 428 1 35007 7/14/20 1 7 La-1 40 -1.SSE+OO 3.1 9E+OO 9.4 1 E+OO u WG W-11 428 1 35007 7/14/20 1 7 Mn-54 5.I I E-0 1 l.30E+OO 4.30E+OO u WG W-11 428135007 7/14/20 1 7 Nb-95 -4.57E-0 1 l.37E+OO 3.70E+OO u WG W-1 1 428 1 35007 7/1 4/20 1 7 R u-1 03 -l.65E+OO l.56E+OO 4.6 1 E+OO u WG W-11 428 1 35007 7/1 4/20 1 7 Ru-1 06 l.84E+O I l.07E+O I 3.78E+OI u WG W-11 428 1 35007 7/14/20 1 7 S b-1 24 3.33E-O I 3.25E+OO l.06E+O I u WG W-11 428 1 35007 7/14/20 1 7 Sb-1 25 -1.0 I E+OO 3.23E+OO I.06E+O I u WG W-11 428 1 35007 7/14/20 1 7 Se-75 -3.48E-02 l.86E+OO 5.82E+OO u WG W-11 428 1 35007 7/14/20 1 7 Th-228 7.06E+OO 4.24E+OO l.OOE+O I u WG W-11 428 1 35007 7/1 4/20 17 Z n-65 9.75E-O I 2.1 I E+OO 7.44E+OO u WG W-11 428 1 35007 7/1 4/20 1 7 Z r-95 l.22E+OO 2.1 I E+OO 7.20E+OO u WG W-12 428 1 35008 7/14/20 1 7 Ac-228 1.48E+O I 7.97E+OO l.72E+O I u WG W-1 2 428 1 35008 7/1 4/20 1 7 Ag-1 08m 7.69E-O I 9.65E-O I 3.33E+OO u WG W-1 2 428135008 7/14/20 1 7 Ag-llOm -5.58E-O I l.8 1 E+OO 5.95E+OO u WG W-1 2 428 1 35008 7/14/20 1 7 Ba-140 1.0 I E+O I 8.80E+OO 3.03E+OI u WG W-12 428135008 7/14/20 1 7 Be-7 1.47E+O I 1.02E+O I 3.55E+OI u WG W-1 2 428 1 35008 7/14/20 1 7 Ce-1 4 1 -4.96E+OO 2.73E+OO 6.SOE+OO u WG W-12 428135008 7/14/20 1 7 C e-1 44 2.22E+OO 7.34E+OO 2.37E+OI u WG W-1 2 428 1 35008 7/1 4/20 1 7 Co-57 -6.SSE-0 1 9.SSE-0 1 2.9 1 E+OO u WG W-1 2 428 1 35008 7/14/20 1 7 Co-58 -1.90E-O I 9.26E-0 1 3.07E+OO u WG W-1 2 428 1 35008 7/1 4/20 1 7 Co-60 2.53E+OO l.73E+OO 4.83E+OO u WG W-1 2 428 1 35008 7/14/20 1 7 C r-5 1 1.30E+O I 1.1 4E+O I 3.96E+OI u WG W-1 2 428 1 35008 7/1 4/20 1 7 Cs-1 34 3.90E+OO I .52E+OO 4.7 5E+OO u WG W-1 2 428 1 35008 7/1 4/20 1 7 Cs-1 37 1.03E+OO I .35E+OO 4.54E+OO u WG W-1 2 428135008 7/14/20 1 7 Fe-59 -3.70E+OO 2.53E+OO 6.28E+OO u WG W-1 2 428 1 35008 7/1 4/20 1 7 H-3 6.22E+O I 3.95E+02 l.29E+03 u WG W-12 428 1 35008 7/14/20 1 7 1-13 1 4.07E+OO 3.89E+OO l.24E+OI u WG W-1 2 428 1 35008 7/1 4/20 1 7 K-40 -1.1 4E+O I 1.64E+O I 5.38E+O I u WG W-1 2 428135008 7/14/20 1 7 La-1 40 3.1 6E-O I 3.00E+OO 9.79E+OO u WG W-1 2 428 1 35008 7/1 4/20 1 7 Mn-54 -2.8IE-OI l.06E+OO 3.S OE+OO u WG W-1 2 428 1 35008 7/14/20 1 7 Nb-95 -4.74E-O I l.27E+OO 3.83E+OO u WG W-1 2 428 1 35008 7/14/20 1 7 R u-1 03 3.1 8E+OO l.84E+OO 4.03E+OO u WG W-1 2 428 1 35008 7/14/20 17 R u-1 06 6.1 2E+OO l.25E+O I 4.1 6E+O I u WG W-1 2 428 1 35008 7/14/20 17 S b-1 24 -3.37E-0 1 2.39E+OO 7.39E+OO u WG W-1 2 428 1 35008 7/14/20 17 S b-1 25 -4.30E-O I 2.4 1 E+OO 7.83E+OO u WG W-1 2 428 1 35008 7/14/20 1 7 Se-75 2.92E+OO l.58E+OO 5.35E+OO u WG W-1 2 428 1 35008 7/1 4/20 17 T h-228 6.90E+OO 4.55E+OO 8.29E+OO u WG W-12 428 1 35008 7/14/20 1 7 Zn-65 -2.72E+OO l.89E+OO 4.36E+OO u WG W-1 2 428 1 35008 7/14/20 1 7 Zr-95 l.61E+OO l.9 1 E+OO 6.59E+OO u WG W-1 3 428 1 35009 7/14/20 1 7 Ac-228 3.74E-O I 5.1 8E+OO l.86E+OI u WG W-1 3 428135009 7/1 4/20 1 7 Ag-1 08m 5.22E-02 l. l OE+OO 3.6 1 E+OO u WG W-13 428 1 35009 7/14/20 1 7 Ag-I I Om -9.53E-01 l.55E+OO 4.74E+OO u WG W-1 3 428 1 35009 7/14/20 1 7 Ba-1 40 -6.64E-0 1 8.88E+OO 2.83E+OI u WG W-13 428 1 35009 7/14/20 1 7 Be-7 7.60E+OO l.1 9E+O I 4.02E+OI u WG W-1 3 428 1 35009 7/1 4/20 1 7 Ce-1 4 1 -6.30E+OO 3.2 1 E+OO 7.76E+OO u WG W-13 428 1 35009 7/14/20 1 7 Ce-1 44 8.83E+O O 9.45E+O O 3.0 4E+O I u WG W-13 428 1 35009 7/1 4/20 1 7 Co-57 -8.02E-0 1 l.2 1 E+OO 3.65E+OO u 0-1 3 4 Do n ald C. Cook Nuclear Plant Annual Radiological Enviro n mental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LS N DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WG W-13 428135009 7/14/2017 Co-58 -I. I OE+OO 1.33£+00 3.99£+00 u WG W-13 428135009 7/14/20 17 Co-60 -1.03£+00 1.31£+00 3.60£+00 u WG W-13 428 1 35009 7/14/20 17 C r-5 1 -5.08E+OO 1.37£+01 4.43£+0 1 u WG W-13 428135009 7/14/20 1 7 Cs-134 2.30E+OO 1.60E+OO 5.66£+00 u WG W-13 428135009 7/14/20 17 Cs-1 37 -5.25£-01 1.0 9£+00 3.50£+00 u WG W-1 3 428135009 7/14/20 17 Fe-59 1.18£+00 2.34£+00 8.14£+00 u WG W-13 428135009 7/1 4/20 1 7 1-1-3 -4.59E+O I 3.97£+02 l.32E+03 u WG W-13 428135009 7/14/20 1 7 1-1 3 1 -2.69E+OO 4.20£+00 1.31E+OI u WG W-13 428135009 7/14/20 1 7 K-40 1.29E+OO l.68E+O I 6.25E+O I u WG W-13 428135009 7/14/20 17 La-140 -2.79E+OO 2.27£+00 5.19 E+OO u WG W-13 428135009 7/14/20 1 7 Mn-54 2.13E+OO l.38E+OO 4.92E+OO u WG W-13 428135009 7/14/20 17 N b-95 2.07£+00 l.6 1E+OO 5.69E+OO u WG W-1 3 428135009 7/1 4/20 1 7 R u-1 03 6.7 1 E-OI l.5 6E+OO 5.18 E+OO u WG W-13 428 1 35009 7/14/20 1 7 Ru-106 l.36E+OO l.30E+O I 4.1 6E+O I u WG W-13 428135009 7/14/20 17 Sb-1 24 -4.05E+OO 4.0IE+OO I.12E+OI u WG W-13 428135009 7/14/20 17 Sb-1 25 l.69E+OO 3. I 5 E+OO l.07E+Ol u WG W-1 3 428135009 7/14/20 17 Se-75 -3.26 E-OI 1.7 4E+OO 5.1 9E+OO u WG W-1 3 428 1 35009 7/14/20 1 7 Th-228 l.04E+Ol 6.35 E+OO 1.1 l E+O I u WG W-1 3 428135009 7/14/20 17 Z n-65 -4.53E+OO 3.15E+OO 7.89E+OO u WG W-1 3 428135009 7/14/20 17 Z r-95 -2.60E-OI 2.50E+OO 8.34E+OO u WG W-14 4281350 1 0 7/14/20 17 Ac-228 2.48E+OO 4.90 E+OO I .65E+O I u WG W-14 428 1 350 10 7/14/20 17 Ag-108m I .84E-OI 8.87£-01 3.02E+OO u WG W-1 4 4281350 10 7/14/20 17 Ag-llOm 1.77 E+OO 1.52 E+OO 4.93E+OO u WG W-14 4 28 1 350 10 7/14/20 1 7 Ba-1 40 3.58£+01 2.83 E+Ol 3.03E+O I Ul WG W-14 428 1 350 10 7/14/20 17 Be-7 2.92E+OI l.62 E+O I 2.72E+O I UI WG W-1 4 428135010 7/14/20 17 Ce-1 4 1 -4.03E+OO 2.28E+OO 6.05E+OO u WG W-1 4 4281350 1 0 7/14/20 1 7 Ce-1 44 2.1 3E+OO 7.14 E+OO 2.34E+O I u W G W-1 4 428135010 7/14/20 1 7 Co-57 I .53E+OO l.04E+OO 3.39E+OO u W G W-14 4281350 10 7/14/20 1 7 Co-5 8 l.89E+OO l.20 E+OO 4.2 1 E+OO u W G W-14 4281350 10 7/14/20 1 7 Co-6 0 2.44E+OO l.1 4E+OO 4.24E+OO u W G W-14 428 1 350 1 0 7/14/20 1 7 C r-5 1 -8.48£+00 l.38 E+OI 4.0 I E+O I u W G W-1 4 4281350 10 7/14/20 17 Cs-1 34 l.72 E+OO 2.07E+OO 4.49E+OO u W G W-1 4 4281350 10 7/14/20 17 Cs-1 37 3.82E+OO 2.28E+OO 3.67£+00 UJ W G W-1 4 428135010 7/14/20 17 Fe-59 -3.36E+OO 2.0 6E+OO 4.76E+OO u W G W-1 4 428 1 350 10 7/14/20 1 7 1-1-3 -5.1 6E-OI 4.0I E+02 1.32£+03 u W G W-14 4281350 1 0 7/14/20 17 1-1 3 1 1.0 I E+O I 3.58£+0 0 1.09£+0 1 u W G W-14 4281350 1 0 7/14/20 1 7 K-40 -1.62 E+OI 1.28£+0 1 3.88E+O I u W G W-14 428 1 350 10 7/14/20 17 La-140 -8.45£-0 2 l.7 8E+OO 5.74E+OO u W G W-14 4281350 1 0 7/14/20 1 7 Mn-54 -2.80£-01 9.1 9£-0 1 2.82£+00 u W G W-14 428 1 350 10 7/14/20 1 7 Nb-95 -2.1 9£+00 1.43£+00 3.64E+OO u W G W-14 428 1 350 10 7/14/20 17 R u-10 3 l.80 E+OO l.32 E+OO 4.28£+00 u W G W-14 4281350 10 7/14/20 17 R u-106 -9.1 6E+OO 1.03£+01 3.03£+0 1 u WG W-1 4 4281350 1 0 7/14/20 1 7 Sb-1 24 3.03E+OO 2.43£+00 9.22£+00 u WG W-14 4281350 1 0 7/14/20 17 Sb-1 25 -1.06 E+OO 2.86E+OO 9.30£+00 u WG W-14 4281350 10 7/14/20 1 7 Se-75 4.05£-01 1.4 9E+OO 4.71£+00 u WG W-1 4 4281350 1 0 7/14/20 17 Th-228 2.19 E+OO 3.45E+OO 8.1 2E+OO u WG W-14 4281350 1 0 7/14/20 1 7 Z n-65 2.1 9£+00 2.43£+00 7.97£+00 u WG W-14 428135010 7/14/20 17 Z r-95 l.15 E+OO 2.03£+00 6.86E+OO u WG MW-20 4281350 11 7/14/20 1 7 Ac-228 -5.94E+OO 5.90 E+OO l.68E+OI u WG MW-20 4281350 11 7/14/20 17 Ag-10 8m -7.1 5E-OI 1.03E+OO 3.1 IE+OO u D-135 Donald C. Cook Nuclear Plant Annual Radiological Envi r onmental Operating Report 2 017 SAMPLE E ND CONC STD.D EV. MDC FLAGS TYPE STATION LSN D ATE NUCL ID E (pCi/L) (pC i/L) (pCi/L) WG MW-20 428 1 350 11 7/1 4/20 1 7 Ag-ll Om 9.07E-O I l.7 1 E+OO 6.0I E+OO u WG MW-20 428 1 350 11 7/14/20 1 7 Ba-1 40 l.02E+O I 9.00E+OO 3.08E+O l u WG MW-20 428 1 350 11 7/14/20 1 7 Be-7 -1.06E+Ol l.32E+O l 3.40E+O I u WG MW-20 428 1 3501 1 7/1 4/20 1 7 Ce-1 41 -3.20E+OO 3.20E+OO 8.85E+OO u WG MW-20 428 1 350 11 7/1 4/20 1 7 Ce-1 44 -5.6 1 E+OO 8.57E+OO 2.78E+O I u WG MW-20 428 1 3501 1 7/14/20 1 7 Co-57 2.34E+OO l.26E+OO 4.1 4E+OO u WG MW-20 4281350 11 7/14/20 1 7 Co-58 3.47E-O l 9.6 1 E-O I 3.39E+OO u WG MW-20 428 1 3501 1 7/14/20 1 7 Co-60 -1.28E+OO l.45E+OO 4.24E+OO u WG MW-20 428 1 350 11 7/14/20 1 7 C r-5 1 -1.42E+O I l.4 1 E+O I 4.22E+OI u WG MW-20 428 1 3501 1 7/14/20 1 7 Cs-1 34 -3.81E-0 1 l.1 8E+OO 3.89E+OO u WG MW-20 428 1 350 11 7/14/20 1 7 Cs-1 37 l.35E+OO 1.30E+OO 4.45E+OO u WG MW-20 428 1 350 11 7/14/20 1 7 Fe-59 -2.05E+OO 3.03E+OO 9.35E+OO u WG MW-20 428 1 350 1 1 7/1 4/20 1 7 H-3 5.59E+02 4.29E+02 1.31 E+03 u WG MW-20 428 1 3501 1 7/1 4/20 1 7 1-1 3 1 3.66E+OO 4.00E+OO I.36E+O I u WG MW-20 428 1 3501 1 7/14/20 1 7 K-40 -2.76E+O I I.65E+O I 4.44E+O I u WG MW-20 428 1 350 11 7/14/20 1 7 La-1 40 3.40E+OO 2.93E+OO 1.07E+O I u WG MW-20 428 1 3501 1 7/14/20 1 7 Mn-54 -6.86 E-O I l.30E+OO 4.2 1 E+OO u WG MW-20 428 1 350 1 1 7/14/20 1 7 Nb-95 3.36E+OO I .46E+OO 4.23E+OO u WG MW-20 4281350 11 7/1 4/20 1 7 Ru-1 03 -8.03E-O l 1.65E+OO 5.IOE+OO u WG MW-20 428 1 350 11 7/14/20 1 7 R u-1 06 -1.45E+O I I.29E+O I 3.5 7E+O I u WG MW-20 428 1 350 11 7/14/20 1 7 Sb-1 24 -2.23E+OO 3.78E+OO 1.1 3E+O I u WG MW-20 428 1 350 1 1 7/1 4/20 17 S b-1 25 -2.1 7E+OO 3.48E+OO J.07E+OI u WG MW-20 428 1 350 11 7/14/20 1 7 Se-75 J.7 1 E+OO l.66E+OO 5.63E+OO u WG MW-20 428 1 350 1 1 7/1 4/20 1 7 T h-228 -3.99E-02 2.88E+OO 8.86E+OO u WG MW-20 428 1 350 11 7/14/20 1 7 Z n-65 3.1 3E+O O 2.4 1 E+OO 8.2 7 E+OO u WG MW-20 428 1 350 11 7/1 4/20 1 7 Zr-95 6.85E-O I 2.29E+OO 7.48E+OO u WG MW-2 1 428 1 350 1 2 7/1 4/20 1 7 Ac-228 9.78E+OO 7.77E+OO J.92E+OI u WG MW-2 1 428 1 350 1 2 7/1 4/20 1 7 Ag-1 08111 -4.1 2E-O I 9.SOE-0 1 3.07E+OO u WG MW-2 1 428 1 350 1 2 7/1 4/20 1 7 Ag-1 1 0 111 -5.45E-O I l.36E+OO 4.07E+OO u WG MW-2 1 428 1 350 1 2 7/1 4/20 1 7 Ba-1 40 -6.47E+OO 8.6 1 E+OO 2.48E+OI u WG MW-2 1 428 1 350 1 2 7/14/20 1 7 Be-7 -1.53E+O I I.03E+O I 2.76E+OI u WG MW-2 1 4281350 1 2 7/1 4/20 1 7 Ce-1 41 -2.70 E+OO 2.40E+OO 6.39E+OO u WG MW-2 1 428 1 350 1 2 7/14/20 1 7 Ce-144 -I.08E+O I 8.36E+OO 2.1 7E+O I u WG MW-2 1 428 1 350 1 2 7/14/20 1 7 Co-57 1.63E+OO 9.23E-0 1 3.02E+OO u WG MW-2 1 428 1 350 1 2 7/1 4/20 1 7 Co-58 -4.77E-02 l.28E+OO 4.I OE+OO u WG MW-2 1 428 1 350 1 2 7/1 4/2 01 7 Co-60 -8.93E-O I l.24E+OO 3.68E+OO u WG MW-2 1 428 1 350 1 2 7/14/20 1 7 C r-5 1 1.03E+O I l.1 9E+O I 4.1 6E+O I u WG MW-2 1 428 1 350 1 2 7/14/20 1 7 Cs-1 34 l.95E-O I l.32E+OO 4.30E+OO u WG MW-2 1 428 1 350 1 2 7/14/20 1 7 Cs-137 -3.4 1 E-01 l.23E+OO 3.89E+OO u WG MW-2 1 428 1 350 1 2 7/14/20 1 7 Fe-59 l.20E+O O 2.56E+OO 9.0 0E+OO u WG MW-2 1 428 1 350 1 2 7/1 4/20 1 7 H-3 -1.27E+02 3.92E+02 1.31E+03 u WG MW-2 1 428 1 350 1 2 7/14/20 1 7 1-1 3 1 -5.9 1 E-O I 4.04E+OO I.1 4E+O l u WG MW-2 1 4281350 1 2 7/14/20 1 7 K-40 -8.80 E+OO I.6 1 E+O I 5.38E+OI u WG MW-2 1 428 1 350 1 2 7/14/20 1 7 La-1 40 -4.07E+OO 2.58E+OO 5.1 6E+OO u WG MW-2 1 428 1 350 1 2 7/14/20 1 7 Mn-54 -1.45E+OO l.09E+OO 2.72E+OO u WG MW-2 1 428 1 350 1 2 7/14/20 1 7 N b-95 l.1 5E+OO 1.22E+OO 4.2 1 E+OO u WG MW-2 1 428 1 350 1 2 7/1 4/20 17 R u-1 03 9.59E-O I l.34E+OO 4.26E+OO u WG MW-2 1 428 1 350 1 2 7/1 4/20 17 R u-1 06 -1.1 6E+O I 1.0 I E+O I 2.80E+O I u WG MW-2 1 428 1 350 1 2 7/1 4/20 17 S b-1 24 4.49E+OO 3.73E+O O l.34E+O I u WG MW-2 1 428 1 350 1 2 7/14/20 1 7 Sb-125 -1.52E+OO 2.66E+OO 8.44E+OO u D-136 Do n ald C. Cook Nuclear Plant Annu al Radiologi c al Environmen t al Operating Report 2017 SAMPLE END CONC ST D.D E V. MDC FLAGS T YP E STATION LSN DATE NUCL ID E (p Ci/L) (pC i/L) (pCi/L) WG MW-2 1 428 1 350 1 2 7/14/20 I 7 Se-75 l.0 3E+OO l.50E+O O 4.8 4 E+OO u WG MW-2 1 4281350 1 2 7/14/20 1 7 T h-228 l.50E+OO 3.8 1 E+OO 6.90E+OO u WG MW-2 1 4281350 12 7/1 4/20 1 7 Zn-65 -6.33E-0 1 1.96E+OO 6.30E+OO u WG MW-21 4281350 1 2 7/1 4/20 1 7 Zr-95 -1.76E+OO 2.20 E+OO 6.34E+OO u WG W-4 42850000 1 7/19/20 1 7 Ac-228 -5.05E-Ol 4.1 5 E+OO 1.30E+O I u WG W-4 428500001 7/1 9/20 1 7 Ag-108111

-6.97E-O I 8.59E-0 1 2.64E+OO u WG W-4 42850000 1 7/19/20 1 7 Ag-110111 4.24E-02 l.07E+OO 3.40E+OO u WG W-4 42850000 1 7/19/20 1 7 Ba-140 -4.49E+OO 5.90E+OO l.78E+O I u WG W-4 428500001 7/19/20 1 7 Be-7 l.23E+OO 7.71E+OO 2.56E+O I u WG W-4 42850000 1 7/19/20 1 7 Ce-1 4 1 -6.99E+OO 2.99E+OO 6.34E+OO u WG W-4 42850000 1 7/19/20 1 7 Ce-1 44 5.1 9E+OO 7.28 E+OO 2.30E+O I u WG W-4 42850000 1 7/19/20 1 7 Co-57 l.85E-0 1 I.OOE+O O 3.1 4E+O O u WG W-4 42850000 1 7/19/20 1 7 Co-58 -6.69E-Ol l.02E+OO 3.00E+OO u WG W-4 42850000 1 7/19/20 1 7 Co-60 -5.1 5E-O I 7.70E-O I 2.30E+OO u WG W-4 42850000 1 7/19/20 I 7 C r-51 -2.26E+O I l.1 2E+O I 2.93E+O I u WG W-4 42850000 1 7/19/20 1 7 Cs-1 34 -l.4 9E+OO 1.11 E+OO 2.92E+OO u WG W-4 42850000 1 7/19/20 1 7 Cs-1 37 -1.85E+OO 1.04E+OO 2.S I E+OO u WG W-4 42850000 1 7/19/20 1 7 Fe-59 9.29E-O I 2.08E+OO 7.23E+OO u WG W-4 42850000 1 7/19/20 1 7 1-1-3 -8.06E+02 4.73 E+02 l.68E+03 u WG W-4 42850000 1 7/1 9/20 1 7 1-13 1 8.1 7E-OI 2.69E+OO 9.04E+OO u WG W-4 42850000 1 7/1 9/20 1 7 K-40 3.1 8E+O I l.65 E+O I 3.2 1 E+O I u WG W-4 42850000 1 7/1 9/20 1 7 La-1 40 2.24E+OO 2.45 E+OO 8.59E+OO u WG W-4 42850000 1 7/19/2 017 Mn-54 l.0 2E-02 9.23 E-0 1 2.94E+OO u WG W-4 42850000 1 7/1 9/20 1 7 Nb-95 -1.l l E+OO 1.25E+OO 3.53E+OO u WG W-4 42850000 1 7/1 9/2 0 1 7 Ru-I 03 -6.1 7£-01 1.08£+00 2.95£+00 u WG W-4 42850000 1 7/1 9/20 1 7 Ru-I 06 1.32E+OO 7.48 E+OO 2.46E+O I u W G W-4 42850000 1 7/1 9/20 I 7 Sb-1 24 2.22E-O I 2.09£+00 6.94E+OO u W G W-4 42850000 1 7/19/20 1 7 Sb-1 25 2.I OE+OO 2.46 E+OO 8.37E+OO u W G W-4 42850000 1 7/1 9/20 1 7 Se-75 4.05£-0 1 l.1 6 E+OO 3.96E+OO u W G W-4 42850000 1 7/1 9/20 1 7 Th-228 4. I OE+OO 3.52 E+OO 5.63E+OO u W G W-4 42850000 1 7/1 9/2 0 1 7 Zn-65 -1.38£-01 l.64E+OO 5.47E+OO u W G W-4 42850000 1 7/1 9/20 1 7 Zr-95 -l.54E+OO l.96 E+OO 5.75E+OO u W G W-5 42850000 2 7/19/20 1 7 Ac-228 l.70 E+O I 6.68E+OO l.90E+O l u W G W-5 428500002 7/1 9/20 1 7 Ag-1 08 111 -2.60E-02 8.9 1 E-0 1 3.02E+OO u W G W-5 428500002 7/1 9/20 17 Ag-11 0 111 3.1 5E+OO l.89E+OO 6.46E+OO u W G W-5 428500002 7/19/20 1 7 Ba-1 40 -7.1 6E+OO 8.00E+OO 2.44E+O l u W G W-5 428500002 7/19/20 1 7 Be-7 -2.11 E+O I 1.1 7£+0 1 3.1 3E+O I u W G W-5 4 2 8500002 7/1 9/20 1 7 Ce-1 4 1 6.5 9E-0 1 2.0IE+OO 6.70E+O O u W G W-5 428500002 7/19/20 1 7 Ce-1 44 8.22E+OO 6.59£+00 2.19E+O l u W G W-5 428500002 7/19/20 1 7 Co-5 7 -1.46 E+OO 1.1 4 E+OO 3.02E+OO u W G W-5 428500002 7/19/20 1 7 Co-58 -1.63E-OI l.08 E+OO 3.43E+OO u W G W-5 428500002 7/1 9/20 1 7 Co-60 -1.68 E+OO l.30 E+OO 3.42E+OO u WG W-5 428500002 7/19/20 1 7 C r-5 1 6.46E+OO 1.1 8£+01 3.78E+O I u WG W-5 428500002 7/19/20 1 7 Cs-134 -1.65E+OO l.82 E+OO 4.SOE+OO u WG W-5 428500002 7/19/20 17 Cs-1 37 -1.1 4E+OO l.02 E+OO 2.84E+OO u WG W-5 428500002 7/1 9/20 1 7 Fe-59 -3.1 3E+OO 2.45E+OO 6.6 7E+OO u WG W-5 428500002 7/1 9/20 1 7 1-1-3 1.0 7£+03 5.6 7£+02 l.69E+0 3 u WG W-5 428500002 7/1 9/20 1 7 1-1 3 1 -2.25£+00 2.97£+00 9.62E+OO u WG W-5 428500002 7/19/20 1 7 K-40 1.5 5£+0 1 2.4 1£+0 1 3.44E+O l u WG W-5 428500002 7/19/20 1 7 La-1 40 -5.64E+OO 3.29E+OO 7.23E+OO u 0-1 37 Donald C. Cook Nuclear P l ant Annual Radiological Environmental Op e rat i n g Report 2017 S AMPL E E ND CONC ST D.D EV. MD C FLAGS TYPE STATI ON LSN D ATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WG W-5 428500002 7/19/20 1 7 Mn-54 -2.55E-0 1 I.2 1 E+OO 3.83E+OO u WG W-5 428500002 7/19/20 1 7 Nb-95 7.1 4E-02 l.4 1 E+OO 4.58E+OO u WG W-5 428500002 7/1 9/20 1 7 R u-1 03 9.09E-0 1 l.30E+OO 4.49E+OO u WG W-5 428500002 7/19/20 1 7 R u-1 06 4.57E-0 1 9.75E+OO 3.23E+Ol u WG W-5 428500002 7/19/20 1 7 S b-1 24 1.92E+OO 3.89E+OO I .33E+O I u WG W-5 428500002 7/19/20 1 7 S b-1 25 2.1 7E+OO 2.97E+OO l.04E+O I u WG W-5 428500002 7/1 9/20 1 7 Se-75 6.79E-O I l.50E+OO 4.83E+OO u WG W-5 428500002 7/1 9/20 1 7 T h-228 -I.8 1 E+OO 2.52E+OO 7.56E+OO u WG W-5 428500002 7/19/20 1 7 Z n-65 3.78E-O I 3.26E+OO I.06E+OI u WG W-5 428500002 7/19/20 1 7 Zr-95 7.07E-O l 2.33E+OO 7.76E+OO u WG W-6 428500003 7/19/20 1 7 Ac-228 -5.76E+OO 3.86E+OO 9.46E+OO u WG W-6 428500003 7/19/20 1 7 Ag-1 08m -9.1 7E-O I 6.38E-O l l.85E+OO u WG W-6 428500003 7/19/20 1 7 Ag-ll Om l.30E-0 1 l.09E+OO 3.5 0E+OO u WG W-6 428500003 7/19/20 1 7 Ba-1 40 5.06E+OO 7.28E+OO l.63E+O I u WG W-6 428500003 7/19/20 1 7 Be-7 4.74E-02 6.98E+OO 2.32E+OI u WG W-6 428500003 7/19/2 01 7 Ce-1 4 1 4.43E+OO 2.74E+OO 4.7 9E+OO u WG W-6 428500003 7/19/20 1 7 Ce-1 44 -4.87E+OO 5.39E+OO l.64E+O I u WG W-6 428500003 7/19/20 1 7 Co-57 3.76E-O I 6.83E-0 1 2.23E+OO u WG W-6 428500003 7/1 9/20 1 7 Co-58 -6.85 E-02 7.54E-0 1 2.40E+OO u WG W-6 428500003 7/19/20 1 7 Co-60 5.25E-O l 6.64E-O I 2.33E+OO u WG W-6 428500003 7/19/20 1 7 Cr-5 1 -8.0 I E-0 1 8.42E+OO 2.57E+OI u WG W-6 428500003 7/1 9/20 1 7 Cs-1 34 8.7 1 E-0 1 7.59E-0 1 2.56E+OO u WG W-6 428500003 7/1 9/20 1 7 Cs-1 37 3.38E-O I 7.46E-0 1 2.48E+OO u WG W-6 428500003 7/19/20 1 7 Fe-59 l.55E-0 1 l.77E+OO 5.98E+OO u WG W-6 428500003 7/1 9/20 1 7 H-3 2.48E+02 4.55E+0 2 l.46E+03 u WG W-6 428500003 7/19/20 1 7 1-1 3 1 2.1 2E+OO 2.08E+O O 7.1 IE+OO u WG W-6 428500003 7/19/20 1 7 K-40 3.09E+O I l.54E+OI 2.1 9E+OI U l WG W-6 428500003 7/19/20 1 7 La-1 40 6.1 6E-02 1.54E+OO 5.07E+OO u WG W-6 428500003 7/19/20 1 7 Mn-54 9.88E-O I 7.1 8E-O I 2.4 1 E+OO u WG W-6 428500003 7/19/20 1 7 Nb-95 -l.41E-O I 7.6 1 E-O l 2.4 1 E+OO u WG W-6 428500003 7/19/20 1 7 R u-1 03 4.53E-O I 8.29E-O I 2.80E+OO u WG W-6 428500003 7/19/20 1 7 Ru-106 6.2 1 E+OO 6.23E+OO 2.1 I E+O l u WG W-6 428500003 7/19/2 0 17 S b-1 24 -1.1 6E+OO l.67E+OO 4.89E+OO u WG W-6 428500003 7/19/20 17 S b-1 25 3.6 1 E+OO 2.06E+OO 6.84E+OO u WG W-6 428500003 7/19/20 1 7 Se-75 -9.l OE-02 1.05E+OO 3.23E+OO u WG W-6 428500003 7/19/20 17 T h-228 -5.1 4E-O I 1.79E+OO 5.1 4E+OO u WG W-6 428500003 7/1 9/20 1 7 Z n-65 7.06E-03 l.82E+OO 4.85E+OO u WG W-6 428500003 7/19/20 1 7 Z r-95 -7.63E-O I l.33E+OO 4.05E+OO u WG W-8 428500004 7/19/20 1 7 Ac-228 5.70E+OO 4.39E+OO l.50E+O l u WG W-8 428500004 7/19/2 0 1 7 Ag-1 08111 -1.1 3E+O O 1.22E+OO 3.34E+OO u WG W-8 428500004 7/19/20 1 7 Ag-I !Om 2.86E+OO 1.74E+OO 5.89E+OO u WG W-8 428500004 7/19/20 1 7 Ba-1 40 -4.73E-O I 8.40E+OO 2.48E+OI u WG W-8 428500004 7/19/20 1 7 Be-7 -l.29E+O I 9.64E+OO 2.75E+Ol u WG W-8 428500004 7/19/20 1 7 Ce-1 4 1 5.70E+OO 3.96E+OO 8.62E+OO u WG W-8 428500004 7/19/20 1 7 Ce-1 44 5.93E+OO 8.62E+OO 2.79E+OI u WG W-8 428500004 7/19/20 1 7 Co-57 1.72E+OO l.24E+OO 3.94E+OO u WG W-8 428500004 7/1 9/20 1 7 Co-58 4.68 E-02 1.08E+OO 3.49E+OO u WG W-8 428500004 7/1 9/20 1 7 Co-60 5.73E-O I 1.1 6E+OO 4.0 5E+OO u WG W-8 428500004 7/1 9/20 1 7 C r-5 1 -2.49E+OO l.25E+O l 4.2 1 E+OI u WG W-8 428500004 7/19/20 1 7 Cs-134 2.76E+OO 1.3 I E+OO 4.43E+OO u D-138 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYP E STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pC i/L) WG W-8 428500004 7/19/20 17 Cs-1 37 5.72 E-O l l.05E+OO 3.56 E+OO u WG W-8 428500004 7/19/20 17 Fe-59 3.25E-Ol 2.38E+OO 8.16 E+OO u WG W-8 428500004 7/1 9/20 17 H-3 2.84E+Ol 5.05E+02 l.66E+03 u WG W-8 428500004 7/19/20 17 1-131 -2.17E+OO 3.33E+OO l.08E+OI u WG W-8 428500004 7/19/2017 K-40 -3.62E+Ol 2.05E+O I 5.18E+OI u WG W-8 428500004 7/19/20 17 La-1 40 -7.51 E-01 2.92E+OO 9.34E+OO u WG W-8 428500004 7/19/20 1 7 Mn-54 -I .35E-0 2 9.23E-OI 2.96E+OO u WG W-8 428500004 7/19/20 17 Nb-95 4.52E-01 l.23E+OO 4.08E+OO u WG W-8 428500004 7/19/20 17 Ru-1 03 -8.60E-OI l.37E+OO 4.34E+OO u WG W-8 428500004 7/19/20 1 7 Ru-1 06 l.19 E+O I 9.82 E+OO 3.37E+O I u WG W-8 428500004 7/19/20 17 Sb-1 24 -I.54E+OO 2.76E+OO 8.29E+OO u WG W-8 428500004 7/19/2 017 S b-1 25 -6.95E+OO 3.51 E+OO 9.12 E+OO u WG W-8 428500004 7/19/20 1 7 Se-75 4.70E-OI l.66E+OO 5.75E+OO u WG W-8 428500004 7/19/20 17 Th-228 2.96E+OO 4.85E+OO 9.87E+OO u WG W-8 428500004 7/1 9/20 1 7 Z n-65 -3.1 8E+OO 2.7 4E+OO 7.21E+OO u WG W-8 428500004 7/1 9/20 1 7 Z r-95 -2.00 E+OO 2.23 E+OO 6.50E+OO u WG W-1 5 428500005 7/19/20 17 Ac-228 -1.08E+O I 5.81 E+OO 1.1 6E+O I u WG W-15 428500005 7/1 9/20 17 Ag-10 8 111 2.17 E-O I 8.1 6E-O I 2.78E+OO u WG W-15 428500005 7/19/20 1 7 Ag-11 0111 7.18E-02 1.1 3E+OO 3.86E+OO u WG W-1 5 428500005 7/1 9/20 17 Ba-1 40 I.0 4E+O I 6.59E+OO 2.28E+O I u WG W-15 428500005 7/19/20 1 7 Be-7 1.64E+O I 9.77E+OO 3.33E+O I u WG W-1 5 428500005 7/19/20 17 Ce-1 4 1 -2.83E+OO 2.3 1 E+OO 5.80E+OO u WG W-15 428500005 7/19/20 1 7 Ce-144 -5.22E+OO 6.35E+OO l.9 7 E+O I u WG W-15 428500005 7/19/20 1 7 Co-5 7 6.25E-01 8.07E-01 2.70E+OO u WG W-15 428500005 7/19/2 017 Co-58 3.1 5E-OI 9.66 E-O I 3.18E+OO u WG W-15 428500005 7/1 9/2017 Co-6 0 2.25E-OI 9.99E-OI 3.37E+OO u WG W-15 428500005 7/19/20 1 7 C r-5 1 -5.96E-01 I.OI E+O l 3.46E+O I u WG W-15 428500005 7/19/20 17 Cs-1 34 -5.45E-02 l.03E+OO 3.26E+OO u WG W-15 428500005 7/19/20 1 7 Cs-1 37 4.78E-01 1.0 I E+OO 3.40E+OO u WG W-15 428500005 7/19/20 17 Fe-59 -I.9 3E+OO 2.34E+OO 7.04E+OO u WG W-1 5 428500005 7/1 9/20 17 H-3 -2.32E+O I 4.98E+02 l.64E+03 u WG W-15 428500005 7/1 9/20 17 1-131 5.89E+OO 2.99E+OO l.OIE+OI u WG W-15 428500005 7/1 9/20 17 K-40 -l.79 E+OI l.59 E+OI 4.67E+O I u W G W-15 428500005 7/1 9/20 1 7 La-1 40 -8.42 E+OO 5.28E+OO 6.78E+OO u WG W-15 428500005 7/1 9/20 17 Mn-54 8.29E-OI l.03E+OO 3.47E+OO u W G W-15 428500005 7/19/20 17 N b-95 2.29E+OO 1.18 E+O O 4.00E+OO u WG W-1 5 428500005 7/19/20 17 Ru-1 03 -6.75 E-01 9.90 E-0 1 3.07E+OO u WG W-15 428500005 7/19/20 1 7 Ru-1 06 1.16 E+OO 8.09 E+OO 2.67E+01 u WG W-1 5 428500005 7/19/20 1 7 Sb-124 -3.7 1 E-OI 2.30E+OO 7.18 E+OO u WG W-15 428500005 7/19/20 1 7 Sb-1 25 -1.28E+OO 2.55E+OO 8.24£+00 u WG W-1 5 428500005 7/1 9/20 17 Se-75 I.69E+OO 1.4 1 E+OO 4.56E+OO u WG W-1 5 428500005 7/19/20 17 Th-228 5.88E+OO 3.80E+OO 7.37£+00 u WG W-1 5 428500005 7/1 9/20 17 Zn-65 -2.74E-01 2.28E+OO 7.53£+00 u WG W-1 5 428500005 7/19/20 17 Zr-95 -1.8 9£+00 2.1 3£+00 6.1 5E+OO u W G W-3 43434500 1 10/3/20 17 Ac-228 1.23£+01 5.2 1 E+OO l.76E+O I u WG W-3 43434500 1 1 0/3/20 17 Ag-1 08 111 -1.1 8E-02 9.82E-01 2.9 1 E+OO u WG W-3 434345001 1 0/3/20 1 7 Ag-I !Om -2.87£+00 1.58E+OO 3.0 0 E+OO u WG W-3 43434500 1 1 0/3/20 17 Ba-1 40 8.62E-OI 5.81 E+OO 1.93 E+O I u WG W-3 434345001 I 0/3/20 17 Be-7 3.2 1 E+OO l.08 E+OI 3.62E+O I u WG W-3 43434500 1 10/3/20 1 7 Ce-1 4 1 -I.4 2E+OO 2.41 E+OO 7.25E+OO u D-139 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE E ND CONC STD.D E V. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WG W-3 434345001 1 0/3/20 17 Ce-1 44 -2.47 E-O I 8.76E+OO 2.7 5E+OI u WG W-3 43434500 1 10/3/20 1 7 Co-57 -4.29£-0 1 I. 13E+OO 3.47E+OO u WG W-3 43434500 1 10/3/2017 Co-58 2.14 E+OO l.26E+OO 4.46E+OO u WG W-3 434345001 1 0/3/2017 Co-60 -l.42 E+OO 9.97E-O I 2.1 3E+OO u WG W-3 43434500 1 10/3/20 1 7 C r-5 1 -4.6 1 E+OO l.05E+O I 3.40E+OI u WG W-3 43434500 1 10/3/20 1 7 Cs-1 34 2.34E-0 1 l.4IE+OO 4.58E+OO u WG W-3 43434500 1 10/3/20 1 7 Cs-1 37 4.39 E-O I 1.21E+OO 4.04E+OO u WG W-3 43434500 1 10/3/20 1 7 Fe-59 3.21E+OO 2.39E+OO 8.87E+OO u WG W-3 43434500 1 10/3/20 1 7 H-3 -2.23E+02 7.84E+02 l.35E+03 u WG W-3 434345001 1 0/3/2017 1-1 31 -l.24E+OO 2.1 6E+OO 6.8 1 E+OO u WG W-3 43434500 1 10/3/20 1 7 K-40 l.0 2E-O I 2.45E+OI 2.80E+O I u WG W-3 43434500 1 10/3/20 1 7 La-1 40 7.86 E-O I 2.08E+OO 7.2 1 E+OO u WG W-3 43434500 1 10/3/20 1 7 Mn-54 -9.85 E-O I l.24E+OO 3.50E+OO u WG W-3 434345001 10/3/20 17 N b-95 9.18 E-01 l.21E+OO 4.52E+OO u WG W-3 434345001 10/3/20 17 R u-1 03 -7.07E-O I 1.31E+OO 3.93E+OO u WG W-3 434345001 1 0/3/20 17 R u-106 -3.33 E-O I 9.63E+OO 2.78E+O I u WG W-3 43434500 1 10/3/2017 Sb-1 24 -l.23E+OO 2.1 6E+OO 5.99E+OO u WG W-3 434345001 10/3/20 1 7 Sb-125 I.OOE+OO 2.93E+OO 9.94E+OO u WG W-3 43434500 1 10/3/20 1 7 Se-75 l.24E+OO l.65E+OO 5.73E+OO u WG W-3 43434500 1 10/3/2017 Th-228 -l.15 E+OO 2.64E+OO 8.44E+OO u WG W-3 43434500 1 10/3/20 17 Zn-65 4.90 E+OO 2.08E+OO 8.06E+OO u WG W-3 43434500 1 10/3/2017 Z r-95 -9.5 6£-0 1 l.83E+OO 5.40E+OO u WG W-1 0 434345002 1 0/3/20 1 7 Ac-228 -7.69E+OO 5.95E+OO l.69 E+O I u WG W-10 434345002 10/3/20 1 7 Ag-1 08m l.6 2E+OO 9.86E-01 3.41 E+OO u WG W-10 434345002 10/3/20 1 7 Ag-I I Om l.80 E+OO l.66E+OO 5.92E+OO u WG W-10 434345002 10/3/2 017 Ba-140 -1. I 3E+OO 5.68E+OO l.79 E+O I u WG W-10 434345002 10/3/20 1 7 Be-7 3.22E+OO 9.32E+OO 3.1 2 E+O I u WG W-10 434345002 10/3/20 1 7 Ce-1 4 1 3.49 E-OI 2.32E+OO 7.30E+OO u WG W-10 434345002 10/3/20 17 Ce-1 44 9.70 E+O O 8.57 E+OO 2.76E+OI u WG W-10 434345002 10/3/20 1 7 Co-57 2.14 E-OI l.07E+OO 3.40E+OO u WG W-10 434345002 10/3/2017 Co-58 l.32E+O O l.1 4E+OO 4.13E+OO u WG W-10 434345002 10/3/20 1 7 Co-60 1.7 4E-02 1.29E+OO 4.2 1 E+OO u WG W-10 434345002 10/3/20 1 7 Cr-5 1 2.6 1 E+O I I.27E+O I 4.22E+OI u WG W-1 0 434345002 10/3/2017 Cs-1 34 l.65E-0 1 1.17 E+OO 4.00E+OO u WG W-1 0 434345002 10/3/20 1 7 Cs-1 3 7 2.77 E-OI l.44E+OO 4.1 6E+OO u WG W-1 0 434345002 10/3/20 1 7 Fe-59 -2.37 E-0 2 2.68E+OO 8.84E+OO u WG W-1 0 434345002 1 0/3/20 1 7 H-3 -5.88E+O I 8.09 E+02 l.37E+03 u WG W-1 0 434345002 1 0/3/20 1 7 1-1 3 1 4.93 E+OO 2.57E+OO 8.68E+OO u WG W-10 434345002 I 0/3/2017 K-40 -1.0IE+OI 1.81 E+O I 5.72E+OI u WG W-10 434345002 10/3/2017 La-1 40 l.27E+O O 2.58 E+OO 8.76 E+OO u WG W-1 0 434345002 1 0/3/2017 Mn-54 6.49 E-02 l.1 8E+OO 3.98E+OO u WG W-10 434345002 10/3/20 17 Nb-95 -7.2 5 E-02 l.2 3E+OO 4.1 3E+OO u WG W-1 0 434345002 10/3/20 17 R u-1 03 7.37E-O I l.32E+OO 4.44E+OO u WG W-1 0 434345002 1 0/3/20 1 7 Ru-1 06 1.1 2E+O I 1.17 E+OI 3.96E+O I u WG W-1 0 434345002 10/3/2017 Sb-1 24 -6.74E+OO 3.63E+OO 7.68E+OO u WG W-1 0 434345002 10/3/20 1 7 Sb-125 4.75 E-O I 3.0 I E+OO 9.99E+OO u WG W-1 0 434345002 1 0/3/2017 Se-75 -9.60 E-01 l.6 1 E+OO 5.20E+OO u WG W-10 434345002 10/3/20 1 7 Th-228 5.16 E+OO 3.76E+OO 7.0I E+OO u WG W-1 0 434345002 1 0/3/20 1 7 Z n-65 -2.42E+OO 2.8 0 E+OO 7.12E+OO u WG W-1 0 434345002 1 0/3/2017 Zr-95 l.66E+OO 2.1 6E+OO 7.68 E+OO u D-140 Do n ald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE EN D C O NC ST D.D E V. MDC FLAGS T YPE S TA TION LSN D ATE NUCL ID E (pCi/L) (pCi/L) (pCi/L)

WG W-11 434345003 1 0/3/20 1 7 Ac-228 6.94E+OO 8.SOE+OO 2.2 1 E+OI u WG W-1 1 434345003 1 0/3/2 017 Ag-1 08m -4.40 E-0 1 l.05E+OO 3.1 9E+O O u WG W-1 1 434345003 1 0/3/20 1 7 Ag-I I Om -2.03E+OO 2.03E+OO 5.63E+O O u WG W-11 434345003 1 0/3/20 1 7 Ba-140 -3.86E+OO 8.I OE+OO 2.26E+O I u WG W-11 434345003 1 0/3/20 1 7 Be-7 -4.8 1 E+OO l.03E+O I 3.34E+O I u WG W-11 434345003 1 0/3/20 1 7 Ce-1 41 -3.56E+OO 2.96E+OO 7.30E+OO u WG W-11 434345003 10/3/20 1 7 Ce-1 44 l.59E-OI 8.83E+OO 2.55E+O I u WG W-11 434345003 1 0/3/20 1 7 Co-57 2.1 7E+OO l.50E+OO 3.34E+OO u WG W-1 1 434345003 1 0/3/20 1 7 Co-58 -3.80E-O I l.25E+OO 3.9 1 E+OO u WG W-1 1 434345003 10/3/20 1 7 Co-60 1.76E+OO 1.44E+OO 5.29E+OO u WG W-1 1 434345003 10/3/20 1 7 C r-5 1 3.80E+OO l.32E+O I 4.40E+O l u WG W-11 434345003 1 0/3/20 1 7 Cs-1 34 3.87E+OO 2.24E+OO 4.70E+O O u WG W-1 1 434345003 1 0/3/20 1 7 Cs-137 6.32E-O I 1.02E+OO 3.59E+O O u WG W-1 1 434345003 1 0/3/20 1 7 Fe-59 6.84E-O I 2.8 1 E+OO 9.60E+OO u WG W-1 1 434345003 1 0/3/20 1 7 H-3 -1. I 9E+02 7.87E+02 l.34E+03 u WG W-1 1 434345003 1 0/3/20 1 7 1-13 1 l.05E+OO 2.79E+OO 9.23E+OO u WG W-11 434345003 1 0/3/20 1 7 K-40 6.47E+O I 3.08E+O I 5.26E+O I UI WG W-11 434345003 1 0/3/20 1 7 La-1 40 -1.26E+OO 2.87E+OO 8.57E+OO u WG W-1 1 434345003 1 0/3/20 1 7 Mn-54 I .40E+OO l.91E+OO 3.93E+OO u WG W-11 434345003 1 0/3/20 1 7 Nb-95 l.1 5E+OO l.50E+OO 4.67E+OO u WG W-11 434345003 1 0/3/20 1 7 R u-1 03 -1.69E+OO I.SIE+OO 4.52E+OO u WG W-1 1 434345003 1 0/3/20 1 7 R u-1 06 -2.33E+OO l.09E+O I 3.54E+O I u WG W-1 1 434345003 1 0/3/20 1 7 Sb-1 24 -5.44E+OO 4.02E+OO 1.0 I E+O I u WG W-11 434345003 1 0/3/20 1 7 Sb-1 25 4.84E+OO 3.88E+OO 1.30E+O I u WG W-11 434345003 1 0/3/20 1 7 Se-75 -3.99E-O I l.86E+OO 6.09E+O O u WG W-1 1 434345003 1 0/3/20 1 7 Th-228 3.94E+OO 3.24E+OO 1.02E+O I u WG W-11 434345003 10/3/20 1 7 Zn-65 -1.28E+OO 3.06E+OO 9.6 8E+OO u WG W-11 434345003 1 0/3/20 1 7 Zr-95 -5.84E-O I 2.39E+OO 7.3 1 E+OO u WG W-12 434345004 1 0/3/20 1 7 Ac-228 -4.82E+OO 5.46E+OO l.86E+O I u WG W-12 434345004 1 0/3/20 1 7 Ag-108111 -6.90E-OI 9.1 IE-0 1 2.70E+OO u WG W-12 434345004 1 0/3/20 1 7 Ag-1 1 0111 -9.1 2E-OI l.68E+OO 5.23E+OO u WG W-12 434345004 1 0/3/20 1 7 Ba-1 40 -2.60E+OO 8.20E+OO 2.40E+O I u WG W-12 434345004 1 0/3/20 1 7 B e-7 4.32E+OO 1.15E+O I 3.8 1 E+O I u WG W-12 434345004 1 0/3/20 1 7 Ce-1 4 1 -2.08E+OO 2.89E+OO 8.32E+OO u WG W-1 2 434345004 1 0/3/20 1 7 Ce-1 44 l.56E+O I 9.30E+OO 2.95E+OI u WG W-12 434345004 1 0/3/20 1 7 Co-57 -8.69E-OI l.28E+OO 3.86E+O O u WG W-12 434345004 1 0/3/20 1 7 Co-58 6.75E-OI l.1 9E+OO 4.1 6E+O O u WG W-1 2 434345004 1 0/3/2 017 Co-60 2.49E+OO l.70E+OO 4.1 2E+O O u WG W-1 2 434345004 10/3/20 1 7 Cr-5 1 -1.54E+Ol l.09E+O I 3.03E+O l u WG W-12 434345004 1 0/3/20 1 7 Cs-1 34 2.52E-OI l.24E+OO 4.1 3E+OO u WG W-1 2 434345004 1 0/3/20 1 7 Cs-1 37 2.63E+OO l.35E+OO 4.8 1 E+O O u WG W-12 434345004 1 0/3/20 1 7 Fe-59 -4.1 2E+OO 3.44E+OO 9.40E+OO u WG W-12 434345004 1 0/3/20 1 7 H-3 -5.56E+02 7.63E+02 I .3 7 E+03 u WG W-12 434345004 1 0/3/20 1 7 1-131 1.47E+OO 2.26E+OO 7.73E+OO u WG W-1 2 434345004 10/3/20 1 7 K-40 3.7 6E+O I 2.1 8E+O l 7.80E+O I u WG W-1 2 434345004 1 0/3/20 1 7 La-1 40 -8.97E-O I 3.09E+OO I.OOE+O I u WG W-1 2 434345004 1 0/3/20 1 7 Mn-54 -4.88E-O I 1.4 1 E+OO 4.57E+OO u W G W-1 2 434345004 1 0/3/20 17 N b-95 l.8 0 E+OO I .43E+O O 5.07E+OO u WG W-1 2 434345004 1 0/3/20 1 7 Ru-I 03 -7.75E-02 l.2 1 E+OO 3.90E+O O u WG W-12 434345004 1 0/3/20 1 7 Ru-1 06 4.84E+OO l.2 8E+O I 4.1 8E+O I u D-141 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operatin g Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WG W-12 434345004 10/3/20 1 7 Sb-124 4.23 E+OO 3.20E+OO l.21 E+O I u WG W-12 434345004 10/3/20 1 7 S b-1 25 8.87 E-Ol 3.14 E+OO l.05 E+O I u WG W-1 2 434345004 10/3/2017 Se-75 l.13 E-O I 1.57 E+OO 5.29E+OO u WG W-1 2 434345004 10/3/2017 Th-228 l.3 5E+OO 2.97E+OO 9.56E+OO u WG W-12 434345004 10/3/2017 Z n-65 l.57 E+OO 2.48E+OO 7.90E+OO u WG W-1 2 434345004 I 0/3/2017 Zr-95 3.48E+OO 2.62E+OO 9.3 2E+OO u WG MW-21 434345005 10/3/20 1 7 Ac-228 l.64E+OO 7.98E+OO l.63E+OI u WG MW-21 434345005 10/3/2017 Ag-10 8m 9.59E-OI J.OIE+OO 3.1 7E+OO u WG MW-21 434345005 10/3/2017 Ag-1 l Om 1.14 E+OO l.54E+OO 5.38E+OO u WG MW-21 434345005 1 0/3/20 1 7 Ba-140 6.35 E+OO 5.72E+OO J.95 E+O I u WG MW-21 434345005 10/3/20 1 7 Be-7 -5.57 E+OO 9.05E+OO 2.81E+Ol u WG MW-21 434345005 1 0/3/2017 Ce-141 -3.05E+OO 2.0IE+OO 5.56E+OO u WG MW-21 434345005 10/3/20 1 7 Ce-14 4 4.IO E+OO 6.84E+OO 2.23E+OI u WG MW-2 1 434345005 10/3/2017 Co-57 l.3 9E+OO 9.30£-01 3.00E+OO u WG MW-21 434345005 1 0/3/20 1 7 Co-58 -2.18 E+OO l.18E+OO 3.02E+OO u WG MW-2 1 434345005 10/3/20 1 7 Co-60 -9.6 5 E-01 l.05E+OO 2.95E+OO u WG MW-21 434345005 10/3/20 1 7 Cr-51 -4.41 E+OO 9.73E+OO 3.18 E+O I u WG MW-2 1 434345005 10/3/20 1 7 Cs-1 34 -1.60 E+OO 1.4 1 E+OO 4.2 1 E+OO u WG MW-2 1 434345005 1 0/3/2017 Cs-1 37 7.21 E-0 2 I.OIE+OO 3.25 E+OO u WG MW-2 1 434345005 10/3/2017 Fe-59 -7.22 E-OI 2.09E+OO 6.65E+OO u WG MW-2 1 434345005 10/3/20 1 7 H-3 2.1 3E+02 8.40£+02 1.38£+03 u WG MW-21 434345005 10/3/20 1 7 1-1 3 1 -2.7 6E+OO 2.2 1£+00 6.52£+00 u WG MW-2 1 434345005 10/3/2017 K-40 -J.6 1 E+O I J.60 E+O I 5.09£+01 u WG MW-2 1 434345005 10/3/2017 La-140 8.42 E-OI 2.19£+00 7.31£+00 u WG MW-2 1 434345005 10/3/20 1 7 Mn-54 8.95£-01 l.02E+OO 3.6 1£+00 u WG MW-2 1 434345005 10/3/2017 Nb-95 -6.23£-02 9.96£-01 3.13£+00 u WG MW-2 1 434345005 10/3/20 1 7 Ru-10 3 -2.83E+OO 1.45£+00 3.64E+OO u WG MW-21 434345005 10/3/20 1 7 R u-1 06 -6.82£+00 9.87£+00 2.96E+OI u WG MW-2 1 434345005 10/3/20 1 7 Sb-1 24 -2.13 E+OO 2.17£+00 6.06E+OO u WG MW-2 1 434345005 10/3/2017 Sb-1 25 2.16 E+OO 3.09£+00 l.05 E+OI u WG MW-21 434345005 1 0/3/20 1 7 Se-75 2.69 E+OO 1.49£+00 4.99£+00 u WG MW-21 434345005 10/3/20 1 7 Th-228 -l.21 E+OO 2.24E+OO 7.35E+OO u WG MW-2 1 434345005 I 0/3/20 1 7 Zn-65 2.IO E+OO 2.45£+00 7.76E+OO u WG MW-2 1 434345005 10/3/20 1 7 Zr-95 -5.90£-0 1 2.04E+OO 6.28E+OO u WG W-1 434623001 10/5/20 1 7 Ac-228 -9.41 E+OO 7.09£+00 2.00E+OI u WG W-1 434623001 10/5/2017 Ag-108m 1.03£+00 9.78£-01 3.43£+00 u WG W-1 43462300 1 10/5/2017 A g-I !Om 1.60£+00 1.66£+00 5.81E+OO u WG W-1 43462300 1 10/5/20 1 7 Ba-14 0 -6.90£+00 9.79£+00 2.97£+01 u WG W-1 43462300 1 10/5/20 1 7 Be-7 6.52 E+OO 1.23£+0 1 3.81£+01 u WG W-1 43462300 1 10/5/2017 Ce-1 4 1 4.65 E+OO 4.20£+00 8.72£+00 u WG W-1 434623001 1 0/5/20 1 7 Ce-1 44 -l.77 E+O I 9.83E+OO 2.82£+0 1 u WG W-1 434623001 10/5/2017 Co-57 2.63 E-01 1.15E+OO 4.00E+OO u WG W-1 43462300 1 10/5/2017 Co-5 8 -2.76E+OO 1.55£+00 3.43£+00 u WG W-1 434623001 1 0/5/20 1 7 Co-60 -6.20£-01 l.30E+OO 4.09E+OO u WG W-1 434623001 I 0/5/20 1 7 C r-5 1 2.II E+OI l.5 1 E+O I 5.18£+01 u WG W-1 434623001 10/5/2017 Cs-134 9.09 E-01 l.02E+OO 3.66E+OO u WG W-1 434623001 1 0/5/20 1 7 Cs-1 37 I .33E+OO l.26E+OO 4.42E+OO u WG W-1 434623001 1 0/5/20 1 7 Fe-59 -2.66E+OO 3.49E+OO 9.84E+OO u WG W-1 434623001 I 0/5/20 1 7 H-3 9.27 E+OI 4.69E+02 l.53E+03 u WG W-1 434623001 1 0/5/2017 1-1 3 1 5.68 E+OO 4.64E+OO l.60 E+OI u D-142 Donald C. Cook Nuclear Plant Annual Radiologic a l Environmental Operating Report 2017 SAMPLE E ND C O NC STD.D E V. MDC F L AGS TYPE S T ATIO N LS N DATE NUC LID E (pCi/L) (pCi/L) (pCi/L) WG W-1 43462300 1 10/5/20 1 7 K-40 -6.90E+OO 1.97E+O I 6.35E+Ol u WG W-1 43462300 1 I 0/5/20 1 7 La-1 40 5.92E+OO 3.87E+OO 1.44E+O I u WG W-1 434623001 1 0/5/20 1 7 M n-54 l.86E-Ol I .42E+OO 4.I OE+OO u WG W-1 43462300 1 1 0/5/20 1 7 Nb-95 -9.64E-O I 1.70E+OO 5.22E+OO u WG W-1 43462300 1 1 0/5/2 0 17 R u-1 03 4.1 9E-OI l.49E+OO 5.00E+O O u WG W-1 43462300 1 10/5/20 1 7 R u-1 06 -1.67E+OI l.27E+O I 3.42E+O I u WG W-1 43462300 1 10/5/20 17 Sb-1 24 2.1 4E-OI 3.0lE+OO 1.02E+O I u WG W-1 43462300 1 1 0/5/20 1 7 S b-1 25 1.48E+OO 3.38E+OO l.05E+O l u WG W-1 43462300 1 1 0/5/20 1 7 Se-75 4.41 E-Ol l.80E+OO 6.1 3E+O O u WG W-1 43462300 1 1 0/5/20 1 7 Th-228 2.04E+OO 5.0lE+OO 1.13E+O I u WG W-1 43462300 1 1 0/5/20 1 7 Zn-65 -3.64E+OO 3.38E+OO 8.92E+OO u WG W-1 43462300 1 1 0/5/20 1 7 Z r-95 -2.5 0 E+OO 3.03E+OO 8.85E+O O u WG W-7 434623003 1 0/5/20 1 7 Ac-228 l.26E+OO 4.7lE+OO l.63E+O l u WG W-7 434623003 1 0/5/20 1 7 Ag-1 08 m 3.02E-OI 1.09E+OO 3.73E+OO u WG W-7 434623003 1 0/5/20 1 7 Ag-I I Om -2.34E+OO 1.91E+OO 4.72E+O O u WG W-7 434623003 1 0/5/20 1 7 Ba-140 -7.62E+OO 9.39E+OO 2.82E+O I u WG W-7 434623003 1 0/5/20 1 7 Be-7 1.74E+OI l.1 6E+O I 4.06E+O I u WG W-7 434623003 1 0/5/20 1 7 Ce-1 4 1 -3.85E+OO 2.71E+OO 7.25E+OO u WG W-7 434623003 1 0/5/20 17 Ce-1 44 -2.75E+OO 7.37E+OO 2.36E+O I u WG W-7 434623003 1 0/5/20 1 7 Co-57 -l.74E+OO 1.02E+OO 2.76E+OO u WG W-7 434623003 1 0/5/20 1 7 Co-58 1.1 7E-OI l.07E+OO 3.46E+O O u WG W-7 434623003 1 0/5/20 1 7 Co-60 2.22E+OO l.55E+OO 5.63E+O O u WG W-7 434623003 1 0/5/20 1 7 Cr-5 1 2.47E+O I 2.l lE+O I 4.46E+O l u WG W-7 434623003 1 0/5/20 1 7 Cs-134 l.20E+OO l.23E+OO 4.3 1 E+OO u WG W-7 434623003 1 0/5/20 1 7 Cs-13 7 -l.76E+OO 1.1 l E+OO 2.57E+O O u WG W-7 434623003 1 0/5/20 1 7 Fe-59 -l.8 7 E+OO 2.74E+OO 8.25E+OO u WG W-7 434623003 1 0/5/20 1 7 H-3 4.50E+02 3.93E+02 l.20E+03 u WG W-7 434623003 1 0/5/20 17 1-1 3 1 7.04E-O I 3.91E+OO I.34E+O I u WG W-7 434623003 1 0/5/20 17 K-40 -1.82E+OI 2.0lE+O I 6.37E+O l u WG W-7 434623003 1 0/5/20 1 7 La-1 40 -9.l OE+OO 4.lOE+OO 5.34E+OO u WG W-7 434623003 1 0/5/20 17 M n-54 -2.1 4E-O I 1.29E+OO 4.02E+OO u WG W-7 434623003 1 0/5/20 1 7 N b-95 2.44E-01 I.32E+OO 4.32E+O O u WG W-7 434623003 I 0/5/20 17 R u-1 03 -4.8 1 E-Ol l.39E+OO 4.45E+OO u WG W-7 434623003 1 0/5/20 1 7 Ru-1 06 1.4 1 E+OO l.1 4E+O I 3.77E+O l u WG W-7 434623003 1 0/5/20 17 S b-1 24 2.83E+OO 3.35E+OO 1.2 1 E+O I u WG W-7 434623003 1 0/5/20 1 7 Sb-1 25 -4.56E+OO 3.47E+OO 9.94E+OO u WG W-7 434623003 1 0/5/20 1 7 Se-75 -1.63E+OO 1.67E+OO 4.68E+OO u WG W-7 434623003 1 0/5/20 1 7 T h-228 6.08E+OO 3.54E+OO 9.1 5E+OO u WG W-7 434623003 10/5/20 1 7 Zn-65 -1.67E+OO 2.58E+OO 7.8 1 E+OO u WG W-7 434623003 1 0/5/20 1 7 Zr-95 6.40E+OO 3.07E+OO 8.04E+OO u WG W-8 434623004 1 0/5/20 1 7 Ac-228 -1.1 2E+OO 5.82E+OO l.93E+OI u WG W-8 434623004 1 0/5/20 17 A g-1 08m -l.59E+OO l.1 2E+OO 2.99E+OO u WG W-8 434623004 1 0/5/20 1 7 Ag-ll Om -2.60E-O l l.46E+OO 4.75E+O O u WG W-8 434623004 1 0/5/20 17 Ba-1 40 5.70E+OO 8.34E+OO 2.83E+O l u WG W-8 434623004 1 0/5/20 1 7 Be-7 -I.3 2E+OI 1.1 7E+O I 3.25E+OI u WG W-8 434623004 1 0/5/20 1 7 Ce-1 4 1 4.0 I E+OO 3.59E+OO 7.82E+OO u WG W-8 434623004 1 0/5/20 1 7 Ce-1 44 l.08E+Ol 9.1 6E+OO 2.95E+Ol u WG W-8 434623004 1 0/5/20 1 7 Co-57 9.32E-OI 1.1 9E+OO 3.86E+O O u WG W-8 434623004 1 0/5/20 1 7 Co-58 1.74E+OO 1.21E+OO 4.41E+OO u WG W-8 434623004 1 0/5/20 1 7 Co-60 -3.77 E+OO l.70E+OO 2.6 1 E+OO u D-1 43 Donald C. Coo k Nuclear Pl a n t Ann u al Radiological Environment a l Operatin g Report 2 01 7 SAMPLE E ND CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WG W-8 434623004 10/5/20 1 7 C r-5 1 1.1 5£+0 1 l.40E+O I 4.80E+O I u WG W-8 434623004 I 0/5/20 1 7 Cs-1 34 -6.08£-0 1 1.27E+OO 4.03E+OO u WG W-8 434623004 1 0/5/20 1 7 Cs-1 37 2.49£+00 1.43E+OO 5.06£+00 u WG W-8 434623004 1 0/5/20 1 7 Fe-59 -2.57£+00 2.85E+OO 7.99E+OO u WG W-8 434623004 1 0/5/20 1 7 H-3 1.08£+03 4.37E+02 1.2 1£+03 u WG W-8 434623004 1 0/5/20 1 7 1-131 1.64£+00 4.58E+OO 1.54E+OI u WG W-8 434623004 1 0/5/20 1 7 K-40 9.63E+OO 1.52£+0 1 5.65E+OI u WG W-8 434623004 10/5/20 1 7 La-1 40 -4.27£+00 2.86£+00 6.1 9E+OO u WG W-8 434623004 10/5/20 1 7 Mn-54 1.35£-01 l.18E+OO 4.00E+OO u WG W-8 434623004 1 0/5/20 1 7 Nb-95 4.5 1£-0 1 1.27E+OO 4.40E+OO u WG W-8 434623004 1 0/5/20 17 R u-1 03 -9.86£-0 1 1.70£+00 5.1 9£+00 u WG W-8 434623004 1 0/5/20 1 7 R u-1 06 -1.22£+0 I 1.18£+0 1 3.2 4 E+OI u WG W-8 434623004 1 0/5/20 17 S b-1 24 1.36£+00 3.9 l E+OO 1.36E+OI u WG W-8 434623004 I 0/5/20 1 7 Sb-1 25 I.OOE+OO 3.56£+00 1.1 8E+OI u WG W-8 434623004 1 0/5/20 1 7 Se-75 6.04£-0 1 1.72£+00 5.87E+OO u WG W-8 434623004 1 0/5/2017 T h-228 8.30E+OO 6.1 7£+00 1.06£+0 1 u WG W-8 434623004 I 0/5/20 1 7 Zn-65 3.20£+00 2.43E+OO 8.90E+OO u WG W-8 434623004 1 0/5/20 1 7 Zr-95 -2.80E+OO 2.1 8E+OO 5.93£+00 u WG W-9 434623005 10/5/20 1 7 Ac-228 -4.88 E+OO 4.41E+OO l.32E+OI u WG W-9 434623005 10/5/20 1 7 Ag-1 08m 1.27 E+OO 8.98£-0 1 3.09E+OO u WG W-9 434623005 10/5/20 1 7 Ag-l lOm -9.61E-O I l.3 1 E+OO 3.70E+OO u WG W-9 434623005 I 0/5/20 I 7 Ba-1 40 5.78£+00 7.31E+OO 2.5IE+O I u WG W-9 434623005 1 0/5/20 1 7 Be-7 -1.2 1£+00 9.08E+OO 2.97£+01 u WG W-9 434623005 1 0/5/20 1 7 Ce-1 4 1 -4.25£+00 2.43E+OO 6.1 8E+OO u WG W-9 434623005 1 0/5/2 0 1 7 Ce-1 44 6.77£-02 6.90E+OO 2.1 9£+0 1 u WG W-9 434623005 1 0/5/20 1 7 Co-57 6.69£-0 1 9.26£-0 1 3.0 I E+OO u WG W-9 434623005 10/5/20 1 7 Co-58 2.94£-0 1 I.O I E+OO 3.33£+00 u WG W-9 434623005 I 0/5/20 1 7 Co-60 2.88£-0 1 9.1 5£-0 1 3.1 5E+OO u WG W-9 434623005 1 0/5/20 1 7 Cr-5 1 -5.03£+00 1.14E+O I 3.7 4E+OI u WG W-9 434623005 10/5/20 1 7 Cs-134 8.23£-0 1 9.36£-0 1 3.24E+OO u WG W-9 434623005 1 0/5/20 1 7 Cs-1 37 -5.83£-0 1 9.91£-0 1 2.99E+OO u WG W-9 434623005 1 0/5/20 1 7 Fe-59 -1.1 2£+00 1.94£+00 6.00E+OO u WG W-9 434623005 1 0/5/20 1 7 H-3 5.1 7E+02 3.95 E+02 1.20£+03 u WG W-9 434623005 I 0/5/20 1 7 1-13 1 -3.35E+OO 3.24E+OO 9.79£+00 u WG W-9 434623005 1 0/5/20 1 7 K-40 5.96E+OO l.72E+O I 6.1 8E+O I u WG W-9 434623005 1 0/5/20 1 7 La-1 40 -4.67E+OO 3.54£+00 9.27E+OO u WG W-9 434623005 I 0/5/20 1 7 Mn-54 -3.48£-0 1 1.11 E+OO 3.42£+00 u WG W-9 434623005 1 0/5/20 1 7 Nb-95 -4.2 1£-0 1 1.1 9£+00 3.69£+00 u WG W-9 434623005 10/5/20 1 7 Ru-1 03 1.07E+OO 1.27£+00 4.33E+OO u WG W-9 434623005 1 0/5/20 1 7 R u-I 06 -2.60 E+OO 9.41E+OO 2.98£+01 u WG W-9 434623005 1 0/5/20 1 7 Sb-1 24 -1.45E+OO 2.72E+OO 8.06E+OO u WG W-9 434623005 1 0/5/20 1 7 Sb-1 25 l.1 8E+OO 2.42E+OO 7.53E+OO u WG W-9 434623005 I 0/5/20 1 7 Se-75 -6.33£-0 1 1.42£+00 4.70£+00 u WG W-9 434623005 1 0/5/20 17 T h-228 1.48£+00 3.27E+OO 6.97E+OO u WG W-9 434623005 1 0/5/20 1 7 Zn-65 9.00E-0 1 1.66£+00 5.39£+00 u WG W-9 434623005 1 0/5/20 1 7 Z r-95 2.1 4£+00 1.90£+00 6.57E+OO u WG W-1 3 434623006 1 0/5/20 1 7 Ac-228 1.4 1£+00 7.42£+00 2.58E+OI u WG W-1 3 434623006 1 0/5/20 1 7 Ag-1 08m 5.23£-0 1 l.24E+OO 4.33E+OO u WG W-1 3 434623006 I 0/5/20 1 7 Ag-I !Om 8.73£-01 l.50E+OO 5.35£+00 u WG W-1 3 434623006 1 0/5/20 1 7 Ba-1 40 7.68£+00 l.02E+O I 3.65E+OI u 0-144 Do na ld C. Cook Nuclear Pl a nt Annual Radiological Environmental Operating Report 2017 SAMPLE END C O NC STD.D E V. MDC FLAGS TYPE ST A TION LSN D ATE NUC LID E (pC i/L) (pC i/L) (pC i/L) WG W-1 3 434623006 1 0/5/20 1 7 Be-7 -l.90E+OI l.55E+O I 4.38E+O I u WG W-1 3 434623006 1 0/5/20 1 7 Ce-1 4 1 8.58E-O I 2.87E+OO 9.62E+O O u WG W-1 3 434623006 1 0/5/20 1 7 Ce-1 44 5.68E+OO 9.89E+OO 3.34E+O I u WG W-1 3 434623006 1 0/5/20 1 7 Co-57 1.I OE+OO 1.22E+OO 4.1 7E+OO u WG W-1 3 434623006 1 0/5/20 1 7 Co-58 3.57E+OO 1.79E+OO 6.66E+OO u WG W-13 434623006 1 0/5/20 1 7 Co-60 2.35E+OO 1.76E+OO 6.76E+OO u WG W-13 434623006 1 0/5/20 1 7 Cr-51 4.32E+OI 2.40E+O I 6.4 1 E+O I u WG W-13 434623006 1 0/5/20 1 7 Cs-1 34 l.1 9E+OO 1.95E+OO 6.70E+OO u WG W-13 434623006 1 0/5/20 1 7 Cs-1 37 9.90E-01 l.38E+OO 4.92E+OO u WG W-13 434623006 1 0/5/20 1 7 Fe-59 -2.96E+OO 3.83E+OO 1.1 3E+O I u WG W-13 434623006 1 0/5/20 1 7 H-3 7.86E+02 4.I OE+02 1.1 9E+03 u WG W-1 3 434623006 10/5/2 01 7 1-1 31 -5.55 E+OO 4.7 1 E+OO l.39E+O I u WG W-1 3 434623006 1 0/5/20 1 7 K-40 -1.1 8E+O I 2.54E+O I 9. 1 2E+O I u WG W-13 434623006 I 0/5/20 1 7 La-1 40 7.52E-O I 4.24E+OO l.43E+OI u WG W-1 3 434623006 1 0/5/20 1 7 Mn-54 -8.82E-0 1 1.54E+OO 4.48E+OO u WG W-1 3 434623006 10/5/20 1 7 Nb-95 -5.38E-02 1.8 1 E+OO 5.84E+OO u WG W-1 3 434623006 10/5/20 17 R u-1 03 -l.42E+OO 2.2 1 E+OO 6.07E+OO u WG W-13 434623006 1 0/5/20 1 7 Ru-1 06 -4.08E+OO 1.5 1 E+O I 4.84E+O I u WG W-13 434623006 1 0/5/20 1 7 Sb-1 24 -2.1 9E+OO 4.92E+OO l.45E+O I u WG W-1 3 434623006 10/5/20 1 7 Sb-1 25 -3.38E-O I 3.65E+OO l.23E+O I u WG W-13 434623006 1 0/5/20 1 7 Se-75 -5.1 6E-02 2.1 5E+OO 6.8 1 E+OO u WG W-1 3 434623006 1 0/5/20 1 7 Th-228 -5.24E+OO 3.84E+OO l.08E+O I u WG W-1 3 434623006 1 0/5/20 1 7 Z n-65 -5.06E+OO 3.66E+OO 9.03E+OO u WG W-1 3 434623006 1 0/5/20 17 Zr-95 3.28E+OO 2.69E+OO 9.94E+OO u WG W-1 4 434623007 1 0/5/2 0 1 7 Ac-228 1.04 E+O I 7.1 7E+O O l.9 1 E+OI u WG W-1 4 434623007 1 0/5/20 1 7 Ag-1 08 m -l.52E+OO l.20E+OO 3.47E+OO u WG W-14 434623007 1 0/5/20 1 7 Ag-1 l Om 4.62E+OO 4.53E+OO 6.70E+OO u WG W-1 4 434623007 1 0/5/20 17 Ba-1 40 7.30E+OO 9.69E+OO 3.33E+O I u WG W-14 434623007 1 0/5/20 1 7 Be-7 -7.98E+OO l.08E+O I 3.3 0E+O I u WG W-14 434623007 1 0/5/20 1 7 Ce-1 4 1 -3.97E+OO 3.29E+OO 8.82E+OO u WG W-1 4 434623007 1 0/5/20 1 7 Ce-1 44 -2.89E+OO 8.44E+OO 2.68E+O I u WG W-1 4 434623007 10/5/20 1 7 Co-57 l.30E+OO l.08E+OO 3.58E+OO u WG W-1 4 434623007 1 0/5/20 1 7 Co-58 -l.22E+OO l.25E+OO 3.33E+OO u WG W-14 434623007 I 0/5/20 1 7 Co-60 8.3 I E-02 l.63E+OO 5.36E+OO u WG W-1 4 434623007 1 0/5/20 1 7 C r-5 1 l.69E+O I l.44E+O I 5.03E+O I u WG W-1 4 434623007 1 0/5/20 17 Cs-1 34 7.20E-O I l.66E+OO 5.47E+O O u WG W-1 4 434623007 1 0/5/20 1 7 Cs-1 37 -2.60E+OO 1.47E+OO 3.47E+O O u WG W-1 4 434623007 1 0/5/20 1 7 Fe-59 6.63E+OO 3.35E+OO 1.2 1 E+O I u WG W-1 4 434623007 1 0/5/20 1 7 H-3 9.97E+02 4.27E+02 l.20E+03 u WG W-14 434623007 1 0/5/20 1 7 1-13 1 4.73E+OO 3.67E+OO l.30E+O I u WG W-1 4 434623007 1 0/5/20 1 7 K-40 -1.60E+O I 2.0 I E+O I 6.I OE+O I u WG W-1 4 434623007 1 0/5/20 1 7 La-1 40 3.48E+OO 3.78E+OO 1.34E+O I u WG W-14 434623007 1 0/5/20 1 7 Mn-54 5.64E-OI l.03E+OO 3.50E+OO u WG W-1 4 434623007 1 0/5/20 1 7 Nb-95 -1.2 1 E+OO l.59E+OO 4.65E+OO u WG W-1 4 434623007 1 0/5/20 17 Ru-1 03 -1.1 9E+OO l.44E+OO 4.36E+OO u WG W-1 4 434623007 1 0/5/20 1 7 Ru-1 06 7.24E+OO l.1 2E+O I 3.80E+O I u WG W-1 4 434623007 1 0/5/2 0 1 7 Sb-1 24 2.86E+OO 2.90E+OO l.08E+O I u W G W-1 4 434623007 1 0/5/2 0 1 7 S b-1 25 -2.62E-O I 2.97E+OO 9.86E+O O u WG W-1 4 434623007 1 0/5/20 1 7 Se-75 l.02E-OI l.82E+OO 5.68E+OO u WG W-14 434623007 1 0/5/20 1 7 T h-228 -3.84E+OO 2.96E+OO 7.90E+OO u D-14 5 Donald C. Cook Nuclear Plant Annual Radiological En v i r onmental Operatin g Report 2 017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WG W-14 434623007 10/5/2017 Z n-65 3.40E+OO 2.70E+OO 9.86E+OO u WG W-14 434623007 10/5/2017 Zr-95 7.86E-01 2.17E+OO 7.22E+OO u WG MW-20 434623009 10/5/2017 Ac-228 2.29E+OI 1.02 E+O I 2.00E+Ol UI WG MW-20 434623009 10/5/2017 Ag-108m -1.62E-O I 9.15E-OI 2.99E+OO u WG MW-20 434623009 10/5/2017 Ag-11 0111 l.57 E+O O 1.32E+OO 4.72E+OO u WG MW-20 434623009 10/5/2017 Ba-140 9.44E+OO 7.83E+OO 2.68E+OI u WG MW-20 434623009 10/5/2017 Be-7 2.43E+OI I.23E+OI 4.05E+OI u WG MW-20 434623009 10/5/2017 Ce-141 -l.70 E+O O 2.31E+OO 6.39E+OO u WG MW-20 434623009 10/5/2017 Ce-144 -5.61 E+OO 7.07E+OO 2.1 4E+OI u WG MW-20 434623009 10/5/2017 Co-57 2.08E+OO 9.80E-OI 3.04E+OO u WG MW-20 434623009 10/5/2017 Co-58 l.81 E+OO I.29E+OO 3.37E+OO u WG MW-20 434623009 10/5/2017 Co-60 -2.34 E-OI 9.40E-01 2.96E+OO u WG MW-20 434623009 10/5/2017 Cr-51 l.72 E+O l 1.25E+Ol 4.27E+OI u WG MW-20 434623009 10/5/2017 Cs-1 34 -8.16 E-OI l.23E+OO 3.72E+OO u WG MW-20 434623009 10/5/2017 Cs-137 4.41 E-01 1.08E+OO 3.56E+OO u WG MW-20 434623009 10/5/2017 Fe-59 1.55 E+OO 2.69E+OO 9.23E+OO u WG MW-20 434623009 10/5/2017 H-3 O.OOE+OO 3.66E+02 1.20 E+03 u WG MW-20 434623009 10/5/2017 1-131 -1.94E+OO 3.64E+OO I.17E+O I u WG MW-20 434623009 10/5/2017 K-40 3.23E+OI l.98 E+O I 2.26E+Ol UI WG MW-20 434623009 10/5/2017 La-140 -5.05E+OO 2.75E+OO 5.20E+OO u WG MW-20 434623009 10/5/20 1 7 Mn-54 -9.60E-01 9.54E-OI 2.85E+OO u WG MW-20 434623009 10/5/2017 Nb-95 -l.0 6E+O O I.27E+OO 3.65E+OO u WG MW-20 434623009 10/5/2017 Ru-103 -l.69E+OO l.59 E+OO 4.42E+OO u WG MW-20 434623009 10/5/2017 Ru-106 3.0IE+OO l.OIE+OI 3.32E+OI u WG MW-20 434623009 10/5/2017 Sb-124 6.04E-OI 2.52E+OO 8.73E+OO u WG MW-20 434623009 10/5/2017 Sb-125 -2.97 E+OO 3.42E+OO l.OO E+O I u WG MW-20 434623009 10/5/2017 Se-75 -2.3 1 E-O I I .40E+OO 4.73E+OO u WG MW-20 434623009 10/5/2017 Th-228 5.IO E+O O 3.33E+OO 7.49E+OO u WG MW-20 434623009 10/5/2017 Z n-65 I.47 E-O I I.72E+OO 5.08E+OO u WG MW-20 434623009 10/5/2017 Z r-95 2.72E+OO 2.19E+OO 7.42E+OO u WG W-2 434623002 10/6/2017 Ac-228 3.07E+OO 7.59 E+OO 2.I OE+Ol u WG W-2 434623002 10/6/2017 Ag-108m -2.94E-01 l.33E+OO 4.39E+OO u WG W-2 434623002 10/6/2017 Ag-1 lOm 9.31E-OI 1.69E+OO 5.72E+OO u WG W-2 434623002 I 0/6/20 1 7 Ba-140 4.46E+OO I.07E+OI 3.62E+OI u WG W-2 434623002 10/6/20 1 7 Be-7 -9.29E+OO 1.35E+OI 4.23E+OI u WG W-2 434623002 10/6/20 1 7 Ce-141 -4.24E-0 1 3.55E+OO I.09E+OI u WG W-2 434623002 1 0/6/2017 Ce-1 44 2.74E+OO I.02E+OI 3.30E+OI u WG W-2 434623002 1 0/6/2017 Co-57 1.27 E+O O 1.46E+OO 4.75E+OO u WG W-2 434623002 10/6/2017 Co-58 -l.05 E-OI 1.43E+OO 4.57E+OO u WG W-2 434623002 10/6/2017 Co-60 I.73 E+OO 1.47E+OO 5.40E+OO u WG W-2 434623002 1 0/6/2017 C r-51 3.46E+OO 1.61E+O I 5.5 1 E+OI u WG W-2 434623002 1 0/6/2017 Cs-1 34 -5.l l E-0 1 1.77E+OO 4.52E+OO u WG W-2 434623002 10/6/2017 Cs-137 5.93E-OI I.IIE+OO 3.80E+OO u WG W-2 4346 23002 10/6/2017 Fe-59 -2.69E+OO 2.65E+OO 7.51E+OO u WG W-2 434623002 1 0/6/2017 H-3 8.46 E+02 4.18E+02 I .20E+03 u WG W-2 434623002 10/6/20 1 7 1-1 3 1 -5.74E+OO 4.89E+OO I.48 E+O l u WG W-2 434623002 10/6/2017 K-40 6.12E+O I 2.58E+OI 3.92E+Ol UI WG W-2 434623002 10/6/2017 La-140 -9.76 E-01 3.22E+OO I.OIE+O I u WG W-2 434623002 I 0/6/2017 Mn-54 2.37E+OO I.06 E+OO 2.23E+OO UI WG W-2 434623002 10/6/2017 Nb-95 -5.76E-01 l.51E+OO 4.66E+OO u D-146 Donald C. Cook Nuclear Pl a nt Annual Radiolog i cal Envi r onmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WG W-2 434623002 10/6/20 17 R u-1 0 3 -2.93£-01 l.69E+OO 5.55E+OO u WG W-2 434623002 1 0/6/20 1 7 R u-1 0 6 -2.38E+OO l.15 E+OI 3.68E+O I u WG W-2 434623002 1 0/6/20 1 7 Sb-1 24 3.1 4£-01 3.21E+OO J.07E+O I u WG W-2 434623002 1 0/6/2 017 Sb-1 25 4.27E+OO 3.73E+OO l.30 E+O I u WG W-2 434623002 1 0/6/20 1 7 Se-75 -4.16 E-01 J.97E+OO 6.38E+OO u WG W-2 434623002 1 0/6/20 17 Th-228 -1.68E+OO 3.70E+OO 1.12 E+OI u WG W-2 434623002 10/6/20 1 7 Z n-65 J.7 3E+OO 3.28E+OO l.05E+Ol u WG W-2 434623002 1 0/6/20 1 7 Zr-9 5 l.85 E+OO 2.91 E+OO 9.86E+OO u WG W-15 434623008 1 0/6/20 1 7 Ac-228 -8.1 8E+OO 5.78E+OO I .66 E+O I u WG W-15 434623008 10/6/20 1 7 Ag-10 8m 9.63E-O I 1.02E+OO 3.50 E+OO u WG W-15 434623008 10/6/20 1 7 Ag-1 lOm J.75 E-OI l.40E+OO 4.24E+OO u WG W-15 434623008 10/6/20 1 7 Ba-1 40 -l.27E+OO 8.32E+OO 2.67E+01 u WG W-15 434623008 10/6/20 1 7 Be-7 J.1 6E+OI 8.65E+OO 3.06E+OI u WG W-15 434623008 1 0/6/20 1 7 Ce-1 4 1 -6.35E-O I 2.30E+OO 7.21E+OO u WG W-15 434623008 10/6/20 1 7 Ce-1 44 2.76E+OO 7.33E+OO 2.38E+O l u WG W-15 434623008 10/6/20 1 7 Co-57 -2.28E-Ol l.03 E+OO 3.25E+OO u WG W-1 5 434623008 10/6/20 1 7 Co-58 -l.23E+OO l.13 E+O O 3.27E+OO u WG W-15 434623008 1 0/6/20 1 7 Co-60 -3.52E-0 1 1.08E+OO 3.34E+OO u WG W-1 5 434623008 10/6/20 1 7 C r-51 1.25 E+OI 1.4 6E+Ol 4.19E+O I u WG W-15 434623008 1 0/6/20 1 7 Cs-134 -1.77E+OO 1.12 E+O O 2.85E+OO u WG W-15 434623008 1 0/6/20 1 7 Cs-137 -2.0 I E+OO l.26E+OO 3.0SE+OO u WG W-15 434623008 1 0/6/20 1 7 Fe-59 -4.9 5 E-02 2.98E+OO 9.87E+OO u WG W-15 434623008 1 0/6/20 1 7 H-3 l.O I E+03 4.29E+02 l.20E+03 u WG W-15 434623008 1 0/6/20 1 7 1-1 3 1 1.44E+OO 3.63E+OO 1.24E+O I u WG W-1 5 434623008 1 0/6/20 17 K-40 3.1 6E+Ol 2.2 1 E+OI 7.82E+Ol u WG W-15 434623008 1 0/6/2017 La-1 40 -3.06 E+OO 3.1 6E+OO 8.38E+OO u WG W-15 434623008 1 0/6/20 17 M n-54 5.19£-01 9.58E-O I 3.21E+OO u WG W-1 5 434623008 1 0/6/20 1 7 N b-9 5 2.62E+OO l.53 E+OO 4.90E+OO u WG W-1 5 434623008 1 0/6/20 17 R u-1 03 l.64E-Ol I .40E+OO 4.62E+OO u WG W-15 434623008 1 0/6/20 1 7 Ru-1 06 5.35E+OO 9.90E+OO 3.33E+O I u WG W-15 434623008 10/6/20 1 7 Sb-1 24 -2.88E+OO 2.80E+OO 6.72E+OO u W G W-1 5 434623008 1 0/6/20 1 7 Sb-1 25 4.lO E+OO 2.92E+OO I.OI E+OI u WG W-1 5 434623008 10/6/20 1 7 Se-75 8.39E+OO 3.44E+OO 4.45E+OO UI W G W-1 5 434623008 1 0/6/20 1 7 Th-228 -8.08E-O I 2.SOE+OO 8.12E+O O u W G W-1 5 434623008 1 0/6/20 1 7 Zn-65 -1.0 0E+OO 2.38E+OO 7.45E+OO u W G W-1 5 4 346230 08 10/6/20 17 Z r-9 5 -2.62E+OO 2.29 E+OO 5.99E+OO u W G SG-1 43467500 1 10/8/20 1 7 Ac-228 -4.56E+OO 4.77E+OO l.50E+O I u W G SG-1 43467500 1 1 0/8/20 17 Ag-10 8 111 -5.79E-OI 7.65E-O I 2.36E+OO u W G SG-1 43467500 1 10/8/20 1 7 Ag-llOm 2.79E+OO l.52E+OO 5.30E+OO u W G SG-1 434675001 10/8/20 1 7 A LPHA 1.9 1 E+OO l.60E+OO 4.85E+OO u DL W G SG-1 43467500 1 1 0/8/20 17 B a-140 l.45 E+OO 6.64E+OO 2.1 8E+O I u W G SG-1 43467500 1 10/8/20 1 7 Be-7 3.89E-O I 9.46E+OO 2.83E+O I u W G SG-1 434675001 1 0/8/20 1 7 B E TA 6.93E+OO l.23E+OO 3.16E+OO WG SG-1 434675001 1 0/8/20 1 7 Ce-141 -1.02E+OO 2.I SE+OO 6.6 9E+OO u WG SG-1 43467500 1 I 0/8/2017 Ce-144 5.36E+OO 7.08E+OO 2.33E+O I u WG SG-1 43467500 1 1 0/8/20 1 7 Co-57 -2.70 E-02 9.55E-OI 3.08E+OO u WG SG-1 434675001 1 0/8/2017 Co-58 -6.84 E-OI 8.79E-O l 2.46E+OO u WG SG-1 434675001 I 0/8/2017 Co-60 -3. I 9E-O I l.09 E+OO 3.48E+OO u WG SG-1 43467500 1 1 0/8/20 1 7 C r-51 -3.24E+OO I .09E+Ol 3.38E+O I u WG SG-1 43467500 1 1 0/8/2017 Cs-1 34 l.5 0 E+OO 9.79E-OI 3.49E+OO u D-14 7 Donald C. Cook Nuclear Pl a nt Annual Radiological Env i ronmental Operating Report 2017 SAMPLE E ND CONC STD.D EV. MDC FLAGS TYPE STATION LSN D ATE NUCL ID E (pCi/L) (pCi/L) (pCi/L) WG SG-1 43467500 1 1 0/8/20 1 7 Cs-1 37 7.96E-O I 9.84E-O I 3.39E+OO u WG SG-1 43467500 1 1 0/8/20 1 7 Fe-59 l.37E+OO l.95E+OO 6.98E+OO u WG SG-1 43467500 1 1 0/8/20 17 H-3 3.6 1 E+02 3.78E+02 l.1 8E+03 u WG SG-1 43467500 1 1 0/8/20 1 7 1-1 31 2.55E+OO 2.54 E+OO 8.90E+OO u WG SG-1 43467500 1 1 0/8/20 1 7 K-40 9.43E+OO 1.86E+O I 3.20E+O I u WG SG-1 43467500 1 1 0/8/20 1 7 La-1 40 4.24E+OO 2.27E+OO 8.55E+OO u WG SG-1 43467500 1 10/8/20 17 M n-54 -4.I I E-0 1 9.84E-O I 2.98E+OO u WG SG-1 434675001 10/8/20 1 7 Nb-95 l.6 1 E+OO 1.2 1 E+OO 3.90E+OO u WG SG-1 43467500 1 1 0/8/20 17 R u-1 0 3 1.29E+OO l.06E+OO 3.70E+OO u WG SG-1 43467500 1 1 0/8/20 1 7 Ru-1 06 5.68 E+OO 8.89E+OO 3.03E+O I u WG SG-1 43467500 1 1 0/8/20 1 7 Sb-1 24 -2.62E-O I 2.45E+OO 7.83E+OO u WG SG-1 43467500 1 1 0/8/20 1 7 Sb-1 25 1.04E+OO 3.03E+OO l.03E+Ol u WG SG-1 43467500 1 1 0/8/20 1 7 Se-75 -3.20£-01 l.36E+OO 4.6 1 E+OO u WG SG-1 43467500 1 10/8/20 1 7 T h-228 l.90E-O I 2.87E+OO 6.32E+OO u WG SG-1 434675001 1 0/8/20 1 7 Z n-65 1.6 1 E+OO l.72E+OO 6.31E+OO u WG SG-1 43467500 1 1 0/8/20 1 7 Zr-95 6.45E-O I l.87E+OO 6.21E+OO u WG SG-2 434675002 1 0/8/20 1 7 Ac-228 -6.52E+OO 5.II E+OO 1.1 7E+OI u WG SG-2 434675002 1 0/8/20 1 7 Ag-108111

-2.09E+OO l.09E+OO 2.70E+OO u WG SG-2 434675002 I 0/8/20 1 7 Ag-1 10111 l.95E+OO l.47E+OO 4.92E+OO u WG SG-2 434675002 1 0/8/20 1 7 ALPHA 9.25E-O I 6.40£-0 1 l.88E+OO u WG SG-2 434675002 1 0/8/20 1 7 Ba-140 -I .28E+OO 6.77E+OO 2.20E+OI u WG SG-2 434675002 1 0/8/20 1 7 Be-7 2.1 9E+O I I.I OE+O I 3.76E+O I u WG SG-2 434675002 1 0/8/20 1 7 B ET A 2.74E+OO 3.90E-O I 7.75E-O I M WG SG-2 434675002 1 0/8/20 1 7 Ce-1 41 -5.70E+OO 3.24E+OO 8.02E+OO u WG SG-2 434675002 1 0/8/20 1 7 C e-1 44 2.1 8E+O O 8.43E+OO 2.7 1 E+O I u WG SG-2 434675002 1 0/8/20 1 7 Co-57 I .49E+OO 1.I OE+OO 3.57E+OO u WG SG-2 434675002 1 0/8/20 1 7 Co-58 -1.52E-0 1 9.77E-0 1 3.08E+OO u WG SG-2 434675002 I 0/8/20 1 7 Co-60 6.1 5E-O I 9.55E-0 1 3.47E+OO u WG SG-2 434675002 1 0/8/20 1 7 C r-5 1 3.86E+OO l.27E+O I 4.37E+OI u WG SG-2 434675002 1 0/8/20 1 7 Cs-1 34 l.06E+OO l.25E+OO 3.97E+OO u WG SG-2 434675002 1 0/8/20 1 7 Cs-1 37 -3.36E-01 l.06E+OO 3.32E+OO u WG SG-2 434675002 1 0/8/20 1 7 Fe-59 -2.1 8 E+OO 2.79E+OO 7.20E+OO u WG SG-2 434675002 1 0/8/20 1 7 H-3 7.77E+02 4.1 5E+02 I.2 1 E+03 u WG SG-2 434675002 1 0/8/20 1 7 1-13 1 8.67E-O I 2.99E+OO l.03E+OI u WG SG-2 434675002 1 0/8/20 1 7 K-40 2.85E+O I 2.0 I E+O I 4.75E+OI u WG SG-2 434675002 1 0/8/20 1 7 La-1 40 7.53E-0 1 l.86E+O O 6.5 7E+OO u WG SG-2 434675002 1 0/8/20 17 M n-54 9.33E-O I l.06E+OO 3.66E+OO u WG SG-2 434675002 1 0/8/20 1 7 Nb-95 -2.30E+OO l.40E+OO 3.5 1 E+OO u WG SG-2 434675002 1 0/8/20 1 7 Ru-1 03 -2.29E-OI I .46E+OO 4.28E+OO u WG SG-2 434675002 1 0/8/20 17 R u-1 06 -7.0IE+OO l.07E+O I 3.27E+O I u WG SG-2 434675002 1 0/8/20 1 7 Sb-1 24 -1.82 E+OO 2.78E+OO 8.05E+OO u WG SG-2 434675002 1 0/8/20 17 S b-1 25 4.08E+OO 3.30E+OO 1.1 4E+O I u WG SG-2 434675002 1 0/8/20 1 7 Se-75 2.69E+OO l.6 5E+OO 5.67E+OO u WG SG-2 4346 7 5002 1 0/8/20 1 7 T h-228 -1.94E+OO 2.39E+OO 7.48E+OO u WG SG-2 434675002 1 0/8/20 1 7 Zn-65 7.2 1 E-O I 2.34E+OO 8.1 8E+OO u WG SG-2 434675002 1 0/8/20 17 Z r-95 -2.24 E+OO 2.04E+OO 5.53E+OO u WG SG-4 434675003 1 0/8/20 1 7 Ac-228 -5.60E+OO 5.1 9E+OO 1.55E+O I u WG SG-4 434675003 10/8/20 1 7 Ag-1 08111 l.70E-O I 1.0 I E+OO 3.37E+OO u WG SG-4 434675003 1 0/8/20 1 7 Ag-I I Om -l.1 6E+OO l.33E+OO 3.83E+OO u WG SG-4 434675003 1 0/8/20 1 7 ALPHA l.60E+OO 7.87E-0 1 2.1 8 E+OO u D-148 Donald C. Cook Nuclear Pl a nt Annua l Radiological Environmental Operat i ng Report 2017 SAMPLE END C O NC ST D.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WG SG-4 434675003 1 0/8/20 1 7 Ba-1 40 -6.6 1 E+OO 6.SOE+OO l.68E+O I u WG SG-4 434675003 1 0/8/20 1 7 Be-7 1.12 E+O I 8.90E+OO 3.12 E+O I u WG SG-4 434675003 1 0/8/20 1 7 BETA 4.52E+OO 5.36E-O l 8.93E-O l WG SG-4 434675003 1 0/8/20 1 7 Ce-1 4 1 -2.1 9 E+OO 2.55E+OO 7.16 E+OO u WG SG-4 434675003 10/8/20 17 Ce-1 44 -4.72 E+OO 7.62E+OO 2.36E+O I u WG SG-4 434675003 1 0/8/20 1 7 Co-57 6.84E-OI l.0 3E+OO 3.38 E+OO u WG SG-4 434675003 1 0/8/20 17 Co-58 -l.49 E+OO 8.64E-0 1 l.88 E+OO u WG SG-4 434675003 10/8/20 1 7 Co-60 -l.3 5 E+OO l.1 2E+OO 3.1 2E+OO u WG SG-4 434675003 1 0/8/20 17 C r-51 1.IS E+O I l.14 E+O I 4.00E+O l u WG SG-4 434675003 1 0/8/20 1 7 Cs-1 34 -1.83 E-OI l.08E+OO 3.48E+OO u WG SG-4 434675003 1 0/8/20 17 Cs-1 37 1.0 2E+OO 1.0I E+OO 3.5 1 E+OO u WG SG-4 434675003 1 0/8/20 1 7 Fe-59 -2.33E+OO 2.06E+OO 5.3 1 E+OO u WG SG-4 434675003 1 0/8/20 1 7 H-3 7.70E+02 4.1 3E+02 l.20E+03 u WG SG-4 434675003 1 0/8/20 17 1-1 3 1 1.68E+OO 2.70E+OO 9.40E+OO u WG SG-4 434675003 1 0/8/20 1 7 K-4 0 -2.3 0 E+O I 1.58 E+O l 5.1 6E+O I u WG SG-4 434675003 10/8/20 1 7 La-1 40 l.59 E+OO 2.61 E+OO 9.20E+OO u WG SG-4 434675003 1 0/8/20 17 Mn-54 3.42E-O I 9.97E-O I 3.35E+OO u WG SG-4 434675003 10/8/20 1 7 N b-95 -1.08 E+OO l.20E+OO 3.57E+OO u WG SG-4 434675003 10/8/20 1 7 Ru-I 03 -I .65E-OI l.1 8E+OO 3.92E+OO u WG SG-4 434675003 10/8/20 1 7 R u-1 06 2.27E+OO 9.I SE+OO 3.09E+O I u WG SG-4 434675003 10/8/20 1 7 Sb-1 24 8.86E-OI 2.07E+OO 7.36E+OO u WG SG-4 434675003 1 0/8/20 17 Sb-1 25 2.25E+OO 2.95E+OO l.03 E+OI u WG SG-4 434675003 1 0/8/20 1 7 Se-7 5 l.65E+OO l.57E+OO 5.0SE+OO u WG SG-4 434675003 1 0/8/20 1 7 Th-228 -9.I OE-01 2.SIE+OO 7.88E+OO u WG SG-4 434675003 1 0/8/20 1 7 Z n-65 -1.35 E-O I 2.67E+OO 7.57E+OO u WG SG-4 434675003 I 0/8/20 17 Z r-95 2.60E+OO l.99E+OO 6.94E+OO u WG SG-5 434675004 1 0/8/20 1 7 Ac-228 4.80E+OO 5.38E+OO l.82 E+OI u WG SG-5 434675004 10/8/20 17 Ag-1 08m -1.1 7E+OO I. I SE+OO 3.42 E+OO u WG SG-5 434675004 1 0/8/20 17 Ag-I I Om 1.47E+OO l.77 E+OO 6.04E+OO u W G SG-5 434675004 1 0/8/20 1 7 AL PHA l.72E+OO 9.56E-O I 2.82E+OO u W G SG-5 434675004 1 0/8/20 1 7 Ba-140 9.09E+OO 8.07E+OO 2.80E+O I u W G SG-5 434675004 I 0/8/20 1 7 Be-7 -3.77 E+OO l.03E+O I 3.2 7 E+Ol u W G SG-5 434675004 1 0/8/20 17 BETA 5.9 5E+OO 7.I I E-0 1 1.22E+OO W G SG-5 434675004 1 0/8/20 1 7 Ce-141 -6.23 E+OO 3.22E+OO 7.64 E+OO u W G SG-5 434675004 10/8/20 1 7 Ce-1 44 l.88E+O l 9.72E+OO 3.03E+O I u W G SG-5 4 34675004 1 0/8/20 1 7 Co-5 7 -1.87E+OO l.27E+OO 3.46E+OO u W G SG-5 4 34675004 1 0/8/20 17 Co-58 2.S I E-01 1.1 8E+OO 3.87£+00 u W G SG-5 4 34675004 1 0/8/20 1 7 Co-60 1.2 1 E+OO l.09 E+OO 4.1 I E+OO u W G SG-5 434 6 75004 1 0/8/20 1 7 C r-51 1.18E+OI I .29E+O I 4.46 E+O I u W G SG-5 434675004 1 0/8/20 1 7 Cs-134 6.00 E-01 1.23£+00 3.78E+OO u W G SG-5 434675004 1 0/8/20 1 7 Cs-137 8.53E-OI 1.26E+OO 4.29 E+OO u W G SG-5 434675004 10/8/20 1 7 Fe-5 9 2.98E+OO 2.43E+OO 9.00 E+OO u WG SG-5 434675004 1 0/8/20 17 H-3 -1.63 E+02 3.55E+02 1.20E+03 u WG SG-5 434 6 75004 1 0/8/20 1 7 1-1 3 1 2.30E+OO 2.70E+OO 9.44 E+OO u WG SG-5 434675004 1 0/8/20 1 7 K-40 -1.08E+O I l.56 E+O I 4.63£+01 u WG SG-5 434675004 1 0/8/20 1 7 La-140 1. I OE+OO 1.87£+00 6.82E+OO u WG SG-5 434675004 1 0/8/20 1 7 Mn-54 I. I 8E-O I l.09E+OO 3.5 2E+OO u WG SG-5 434675004 10/8/20 1 7 Nb-95 2.82E+OO l.38E+OO 4.83E+OO u WG SG-5 434675004 1 0/8/20 1 7 Ru-1 03 l.94E+OO l.55E+OO 5.32E+OO u WG SG-5 434675004 10/8/20 17 Ru-1 06 2.42E+OO 8.48E+OO 2.84E+OI u 0-14 9 Donald C. Cook Nuclear Pl a nt Annual Radiological Environmental Operating Report 2 017 SAMPLE E ND CONC STD.DEV. MDC FLAGS TYPE STATION LSN D ATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) WG SG-5 434675004 1 0/8/20 1 7 Sb-1 24 -2.35E+OO 3.20E+OO 8.99E+OO u WG SG-5 434675004 1 0/8/20 1 7 Sb-1 25 -5.1 1 E+OO 4.28E+O O l.08E+O I u WG SG-5 434675004 1 0/8/20 17 Se-75 4.66E-01 1.65E+OO 5.66E+OO u WG SG-5 434675004 1 0/8/20 1 7 Th-228 -4.95E-O I 2.60E+OO 8.8 1 E+OO u WG SG-5 434675004 1 0/8/20 1 7 Z n-65 -5.72E-0 1 2.38E+OO 7.77E+OO u WG SG-5 434675004 1 0/8/20 1 7 Zr-95 -2.05E+OO 2.29E+OO 6.40E+OO u WG W-4 435130001 I 0/10/20 1 7 Ac-228 9.97E+OO 6.56E+OO l.58E+O I u WG W-4 435 1 30001 I 0/10/20 1 7 Ag-1 08111 4.76E-O l 8.1 3E-O I 2.76E+OO u WG W-4 435 1 3000 1 I 0/10/20 1 7 Ag-I !Om -1.05E+OO l.23E+OO 3.8 1 E+OO u WG W-4 435 1 30001 I 0/10/20 1 7 Ba-1 40 -2.90E+OO 6.50E+OO 2.05E+O I u WG W-4 43513000 1 1 0/1 0/20 1 7 Be-7 3.59E+OO 7.46E+OO 2.53E+O I u WG W-4 435 1 30001 I 0/10/20 1 7 Ce-141 -4.08E+OO 2.6 1 E+OO 6.88E+OO u WG W-4 435 1 30001 I 0/10/20 1 7 Ce-1 44 -6.33E+OO 6.49E+OO l.96E+O I u WG W-4 435 1 3000 1 I 0/10/20 1 7 Co-57 l.20E-0 1 8.35E-O I 2.72E+OO u WG W-4 435 1 30001 1 0/1 0/20 1 7 Co-58 -7.7 1 E-0 1 9.1 3E-0 1 2.84E+OO u WG W-4 435 1 30001 1 0/1 0/20 1 7 Co-60 -6.1 5E-03 8.54E-0 1 2.79E+OO u WG W-4 435130001 1 0/1 0/20 1 7 Cr-51 -5.85E+OO 1.06E+O I 3.29E+O I u WG W-4 435 1 3000 1 10/1 0/20 1 7 Cs-1 34 2.1 9E+OO l.06E+OO 3.56E+OO u WG W-4 435 1 30001 1 0/10/20 1 7 Cs-1 37 -5.64E-0 1 9.08E-O l 2.74E+OO u WG W-4 435 1 3000 1 1 0/1 0/20 1 7 Fe-59 -1.1 5E+OO l.84E+OO 5.65E+OO u WG W-4 435 1 3000 1 10/1 0/20 1 7 H-3 l.40E+03 5.20E+02 l.40E+03 u WG W-4 435 1 3000 1 10/1 0/20 1 7 1-1 3 1 l.89E+OO 3.24E+OO 1.1 I E+OI u WG W-4 435 1 3000 1 I 0/1 0/20 1 7 K-40 6.54E+O I l.8 1 E+O I 2.67E+O I U I WG W-4 435 1 3000 1 1 0/1 0/2 0 1 7 La-1 40 -4.83E-0 1 2.3 1 E+OO 7.22E+OO u WG W-4 435 1 3000 1 1 0/1 0/20 17 M n-54 -J.7 9E-O I 8.46E-O I 2.83E+OO u WG W-4 435 1 3000 1 I 0/1 0/20 1 7 Nb-95 -8.1 7E-02 l.08E+OO 3.4 2E+OO u WG W-4 43513000 1 1 0/1 0/20 17 R u-I 03 -4.78E-O I 1.1 2E+OO 3.59E+OO u WG W-4 435 1 30001 I 0/1 0/20 1 7 Ru-I 06 l.49E+O I 9.3 I E+OO 3.1 I E+OI u WG W-4 435 1 30001 I 0/1 0/20 1 7 Sb-124 -1.7 1 E+OO 2.3 1 E+OO 6.47E+OO u WG W-4 43513000 1 I 0/10/20 1 7 Sb-125 -l.09E+OO 2.6 1 E+OO 8.45E+OO u WG W-4 435 1 30001 1 0/1 0/20 1 7 Se-75 6.93E-O I l.30E+OO 4.5 1 E+OO u WG W-4 435 1 30001 I 0/1 0/20 1 7 Th-228 l.50E+OO 3.05E+OO 7.43E+OO u WG W-4 435 1 30001 1 0/10/2017 Z n-65 2.84E+OO 2.0 I E+OO 6.95E+OO u WG W-4 435 1 30001 I 0/10/20 1 7 Z r-95 -1.1 3E+OO 1.77£+00 5.23E+OO u WG W-5 435130002 1 0/10/20 1 7 Ac-228 5.05E+OO 4.83E+OO l.63E+O I u WG W-5 435 1 30002 I 0/1 0/20 1 7 Ag-1 08 111 -6.6 1 E-O I 9.76E-O I 3.I OE+OO u WG W-5 435 1 30002 10/10/20 1 7 Ag-11 0111 -1.57E-02 1.37£+00 4.36E+OO u WG W-5 435 1 30002 I 0/10/20 1 7 Ba-140 9.79E+OO 8.20E+OO 2.82E+O I u WG W-5 435 1 30002 I 0/10/20 1 7 Be-7 -3.99E+OO 1.1 2E+O I 3.65E+O I u WG W-5 435 1 30002 I 0/1 0/20 1 7 Ce-1 41 -2.47E+OO 3.1 7E+OO 8.03E+OO u WG W-5 435 1 30002 1 0/1 0/20 1 7 Ce-1 44 4.26E+OO 8.76E+OO 2.83E+OI u WG W-5 435 1 30002 I 0/1 0/20 1 7 Co-57 2.99E+OO 1.3 1 E+OO 3.1 2E+OO u WG W-5 435130002 I 0/10/20 1 7 C o-58 l.39E-O I 1.1 4E+OO 3.72E+OO u WG W-5 435 1 30002 1 0/1 0/20 1 7 Co-60 1.44E-O I 1.23E+OO 3.68E+OO u WG W-5 435 1 30002 I 0/1 0/20 1 7 Cr-5 1 -2.50E+OI l.40E+O I 3.92E+OI u WG W-5 435 1 30002 1 0/1 0/20 1 7 Cs-1 34 -1.4 1 E+OO l.1 4E+OO 3.03E+OO u WG W-5 435 1 30002 1 0/1 0/20 1 7 Cs-1 37 1.1 8E+OO l.l OE+OO 3.77E+OO u WG W-5 435 1 30002 1 0/1 0/20 1 7 Fe-59 -2.22£-0 1 2.22E+OO 7.46£+00 u WG W-5 435 1 30002 I 0/1 0/20 1 7 H-3 9.70E+02 5.1 6E+0 2 I .49E+03 u WG W-5 435 1 30002 1 0/1 0/20 1 7 1-1 3 1 -2.52E+OO 3.74E+OO l.20E+OI u D-150 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DE V. MDC FLAGS TYPE STATION LSN DATE NUCL ID E (pCi/L) (pCi/L) (pCi/L) WG W-5 435 1 30002 1 0/1 0/20 1 7 K-40 l.34E+O l 2.l OE+O I 2.09E+O I u WG W-5 435130002 I 0/1 0/20 1 7 La-1 40 -4.83E+OO 3.54E+OO 9.32E+OO u WG W-5 435130002 1 0/1 0/20 1 7 Mn-54 -5.59E-O I I. I OE+OO 3.35E+OO u WG W-5 435130002 I 0/10/20 1 7 Nb-95 2.1 4E-O I l.1 4E+OO 3.73E+OO u WG W-5 435130002 10/10/2017 Ru-103 1.37E+OO 1.37E+OO 4.68E+OO u WG W-5 435130002 10/1 0/20 1 7 Ru-106 -7.59E+OO I .09E+O I 3.34E+O I u WG W-5 435130002 I 0/10/20 1 7 Sb-1 24 -5.85£-01 3.l l E+OO 9.98E+OO u WG W-5 435130002 10/10/20 1 7 Sb-125 -5.72E+OO 3.39E+OO 9.37E+OO u WG W-5 435 1 30002 I 0/10/20 1 7 Se-75 -4.82£-01 l.96E+OO 5.97E+OO u WG W-5 435130002 10/10/20 1 7 Th-228 3.36£-02 4.58E+OO 6.94E+OO u WG W-5 435130002 1 0/10/20 1 7 Zn-65 -2.52E+OO 2.64E+OO 6.67E+OO u WG W-5 435 1 30002 I 0/10/20 1 7 Zr-95 -l.07E-0 1 2.08E+OO 6.69E+O O u WG W-6 435130003 I 0/10/20 1 7 Ac-228 1.42E+O I 7.07E+OO l.38E+O I Ul WG W-6 435130003 1 0/10/20 1 7 Ag-1 08m -9.7 0£-01 9.96E-O I 2.8 1 E+O O u WG W-6 435130003 1 0/10/20 1 7 Ag-I I O m -6.07E-01 l.2 5E+OO 3.73E+O O u WG W-6 435130003 10/10/20 1 7 Ba-140 l.07E+Ol 6.56E+OO 2.1 5E+O I u WG W-6 435130003 I 0/10/20 1 7 Be-7 -l.49E+Ol 1.08E+O I 2.59E+O I u WG W-6 435130003 10/10/20 1 7 Ce-1 41 -l.22E+OO 2.34E+OO 6.50E+OO u WG W-6 435 1 30003 1 0/10/20 1 7 Ce-1 44 -2.28E+OO 6.7 1 E+OO 2.07E+O I u WG W-6 435130003 I 0/10/20 1 7 Co-57 -6.44£-01 9.93£-0 1 3.0 I E+O O u WG W-6 435 1 30003 10/10/2017 Co-58 7.40E-O I l.09E+OO 3.35E+OO u WG W-6 435130003 I 0/1 0/20 1 7 Co-60 6.27£-0 1 9.94E-O I 3.50E+OO u WG W-6 435130003 1 0/1 0/20 1 7 Cr-5 I 1.32E+O I l.18E+O I 4.05E+O I u WG W-6 435130003 I 0/10/20 1 7 Cs-1 34 -9.l?E-0 1 l.23E+OO 3.lOE+O O u WG W-6 435 1 30003 I 0/1 0/2 01 7 Cs-1 3 7 -2.8 2E-O I 7.82E-0 1 2.42E+O O u WG W-6 435130003 10/1 0/20 1 7 Fe-59 -1.94E+OO 2.35E+OO 7.1 6E+OO u WG W-6 435130003 1 0/1 0/20 1 7 H-3 1.29E+03 5.25E+02 l.44E+03 u W G W-6 435130003 1 0/10/20 1 7 1-13 1 5.00E-0 1 3.22E+OO l.08E+O I u W G W-6 435130003 I 0/10/20 1 7 K-40 -2.26E+OI 1.55E+O I 4.44E+O I u W G W-6 435130003 1 0/1 0/20 1 7 La-1 40 3.86E+OO 2.8 1 E+OO 1.0 I E+O l u W G W-6 435130003 I 0/10/20 1 7 Mn-54 3.42£-01 l.24E+OO 3.63E+OO u W G W-6 435130003 10/10/20 1 7 Nb-95 -l.72E-O I l.1 2E+OO 3.55E+OO u W G W-6 435130003 1 0/1 0/20 1 7 Ru-1 03 -2.35E+OO 1.33E+OO 3.45E+OO u W G W-6 435 1 30003 10/10/20 1 7 Ru-1 06 -4.93E+OO 7.1 5E+OO 2.1 3E+O I u W G W-6 435130003 1 0/1 0/20 17 Sb-1 24 -3.6 5 E+OO 2.25E+OO 4.34E+O O u WG W-6 435 1 30003 1 0/1 0/20 1 7 Sb-1 25 l.42E+OO 2.63E+OO 8.93E+O O u WG W-6 435 1 30003 I 0/1 0/20 1 7 Se-75 -8.3 4£-01 I .40E+OO 4.57E+OO u WG W-6 435130003 I 0/1 0/20 1 7 Th-228 2.80E+OO 2.9 1 E+OO 6.93E+O O u WG W-6 435130003 I 0/1 0/20 1 7 Zn-65 4.70£-0 1 2.80 E+OO 7.72E+OO u WG W-6 435130003 1 0/1 0/20 1 7 Zr-95 -2.50E+OO 2.1 7E+OO 6.0 I E+OO u D-151 Donald C. Cook Nuclear Plant Annual Radiological Env i ronment al Operating Report 2 017 SAMPLE END CONC STD.D EV. MDC FLAGS TYPE S TA TION LSN DAT E NUCLIDE (pCi/L) (pCi/L) (pCi/L) ws SWL-2 4 1 543400 1 1/3 1/20 1 7 Ac-228 -3.64£-0 1 2.60£+00 8.28E+OO u ws SWL-2 415434001 1/3 1/20 1 7 Ag-1 08m 3.0 I E-0 1 5.9 1 E-01 2.06£+00 u ws SWL-2 41543400 1 1/3 1/2 017 Ag-I !Om -7.92£-0 1 9.98£-01 2.94£+00 u ws SWL-2 41543400 1 1/3 1/2017 Ba-1 40 -1.6 6£+0 1 9.84E+OO 2.40E+O I u ws SWL-2 41543400 1 1/3 1/20 1 7 Be-7 -6.5 1 E+OO 7.9 1£+00 2.52£+01 u ws SWL-2 4 1 543400 1 1/3 1/2017 Ce-1 41 3.1 2£+00 2.6 1£+00 4.9 1£+00 u ws SWL-2 41543400 1 1/31/20 1 7 Ce-1 44 6.25£-0 1 5.00 E+OO 1.6 7£+0 1 u ws SWL-2 4 15 43400 1 1/3 1/20 1 7 Co-57 -8.38£-02 6.47£-0 1 2.1 6£+00 u ws SWL-2 41543400 1 1/3 1/2017 Co-58 -4.44£-0 1 8.94£-0 1 2.79£+00 u ws SWL-2 415434001 1/31/20 1 7 Co-60 -1.5 7£-02 6.57£-01 2.20£+00 u ws SWL-2 415434001 1/31/20 1 7 C r-5 1 7.6 1£+00 1.03£+0 1 3.33£+01 u ws SWL-2 415434001 1/3 1/20 1 7 Cs-134 9.89£-0 1 9.45£-0 1 3.2 1£+00 u ws SWL-2 415434001 1/3 1/2017 Cs-1 37 1.25£-01 7.72£-0 1 2.59£+00 u ws SWL-2 41543400 1 1/3 1/20 1 7 Fe-59 3.1 5£+00 2.2 1£+00 6.96£+00 u ws SWL-2 41543400 1 1/3 1/20 1 7 1-13 1 7.26£+00 5.06£+00 1.63£+01 u ws SWL-2 415434001 1/3 1/2 0 17 K-40 1.14 E+OI 1.4 8£+0 1 2.7 1£+01 u ws SWL-2 4 1 543400 1 1/31/20 1 7 La-1 40 7.00E-02 2.65£+00 7.73£+00 u ws SWL-2 41543400 1 1/31/2017 Mn-54 9.87£-01 7.47£-0 1 2.56£+00 u ws SWL-2 4 1 543400 1 1/3 1/20 I 7 Nb-95 -6.94£-0 1 1.29£+00 3.24£+00 u ws SWL-2 4 1 5434001 1/3 1/20 1 7 Ru-1 03 -2.74£-0 2 I.OO E+OO 3.39£+00 u ws SWL-2 4 1 5434001 1/3 1/2017 Ru-1 06 1.22£-0 1 6.66£+00 2.22£+0 1 u ws SWL-2 415434001 1/3 1/20 1 7 S b-124 1.63£+00 1.94£+00 6.9 1£+00 u ws SWL-2 4 1 5434001 1/3 1/2 017 Sb-1 25 1.39£+00 2.0I E+OO 7.02E+OO u ws SWL-2 4 15 43400 1 1/31/20 1 7 Se-75 5.28£-01 1.06£+00 3.44£+00 u ws SWL-2 4 1 543400 1 1/3 1/20 I 7 Th-22 8 4.46£+00 2.42£+00 5.54£+00 u ws SWL-2 4 1 543400 1 1/3 1/20 I 7 Z n-65 -4.18£-01 1.80£+00 5.58£+00 u ws SWL-2 415434001 1/3 1/20 1 7 Z r-95 2.11£+00 1.66£+00 5.30£+00 u ws SWL-3 415434002 1/3 1/20 1 7 Ac-228 -9.79£+00 5.1 8£+00 1.1 5E+OI u ws SWL-3 4 1 5434002 1/3 1/20 I 7 Ag-10 8m -6.52£-0 3 8.1 9£-01 2.66£+00 u ws SWL-3 4 15434002 1/3 1/20 I 7 Ag-l l Om -2.33£-01 I.I I E+OO 3.68£+00 u ws SWL-3 4 1 5434002 1/3 1/2017 Ba-1 40 2.03£+0 1 1.0 9£+0 1 3.54£+0 1 u ws SWL-3 4 1 5434002 1/31/20 I 7 B e-7 2.97£+00 9.52£+00 2.81£+0 1 u ws SWL-3 4 1 5434002 1/3 1/20 I 7 Ce-141 -2.74£+00 2.82E+O O 7.39£+00 u ws SWL-3 4 1 5434002 1/31/2017 Ce-1 44 6.68£+00 6.20£+00 2.09£+01 u ws SWL-3 4 1 5434002 1/3 1/2017 Co-57 -1.29£-0 1 7.79£-01 2.63£+00 u ws SWL-3 4 1 5434002 1/3 1/2017 Co-58 -1.03£+00 9.28£-0 1 2.80£+00 u ws SWL-3 415434002 1/3 1/20 I 7 Co-60 1.38£-0 I 8.58£-01 2.88£+00 u ws SWL-3 4 1 5434002 1/3 1/20 I 7 C r-51 1.93£+0 1 1.71£+01 3.6 1£+01 u ws SWL-3 4 1 5434002 1/3 1/2017 Cs-1 34 -1.13£+00 1.02£+00 3.1 l E+OO u ws SWL-3 4 1 5434002 1/3 1/2017 Cs-137 -3.93£-01 9.IO E-01 2.80£+00 u ws SWL-3 4 1 5434002 1/3 1/20 1 7 Fe-59 -8.47£-0 1 2.43£+00 7.9 0£+00 u ws SWL-3 4 15 434002 1/3 1/2017 1-1 3 1 1.84£+0 1 7.23£+00 1.76£+0 1 U l ws SWL-3 4 1 5434002 1/3 1/2017 K-40 -1.48£+0 1 1.29£+0 1 3.48£+0 1 u ws SWL-3 4 1 5434002 1/3 1/2017 La-140 4.48£+00 3.47£+00 1.13£+0 1 u ws SWL-3 4 1 5434002 1/3 1/20 1 7 Mn-54 1.62£+00 9.47£-01 3.26£+00 u ws SWL-3 4 1 5434002 1/3 1/2017 N b-95 -9.06£-01 1.1 0£+00 3.52£+00 u ws SWL-3 415434002 1/3 1/2017 Ru-1 03 1.95£+00 l.1 7E+OO 3.59£+00 u ws SWL-3 4 1 5434002 1/3 1/20 17 R u-1 06 -4.8 1£+00 8.69£+00 2.66£+01 u ws SWL-3 415434002 1/3 1/2017 Sb-124 -5.52£+00 3.37£+00 8.52£+00 u ws SWL-3 415434002 1/3 1/20 1 7 Sb-125 l.22E+OO 2.40E+OO 7.96£+00 u D-152 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE E ND CON C STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCL ID E (pCi/L) (pCi/L) (pCi/L) ws SWL-3 4 1 5434002 1/3 1/20 17 Se-75 -5.3 1 E-01 1.1 8E+OO 3.8 1 E+OO u ws SWL-3 4 1 5434002 1/3 1/2 017 T h-228 7.34 E+OO 3.83E+OO 6.93E+OO Ul ws SWL-3 4 1 5434002 1/3 1/2017 Z n-65 -7.23E-01 l.89E+OO 6.1 I E+OO u ws SWL-3 4 1 5434002 l/3 1/2017 Z r-95 -1.16 E+OO 2.0 l E+OO 6.04E+OO u ws SWL-2 4 1 773200 1 2/28/20 17 Ac-228 -1.13 E+OO 3.45E+OO 1.02E+Ol u ws SWL-2 41773200 1 2/28/20 1 7 Ag-10 8 m 1.16 E-01 6.29E-0 1 1.96E+OO u ws SWL-2 4 1 773200 1 2/28/20 1 7 Ag-1 10111 2.02E+OO 9.98E-0 1 3.43E+OO u ws SWL-2 4 1 773200 1 2/28/20 17 Ba-140 3.98E+OO 7.09E+OO 2.45E+O l u ws SWL-2 4 1 773200 1 2/28/20 1 7 Be-7 1.36 E+O l 8.1 I E+OO 2.77E+O l u ws SWL-2 4 1 773200 1 2/28/20 1 7 Ce-1 4 1 -1.3 9E+OO 2.07E+OO 5.88E+OO u ws SWL-2 4177 3200 1 2/28/20 1 7 Ce-1 44 -3.40E+OO 4.37E+OO 1.39E+Ol u ws SWL-2 41773 200 1 2/28/20 17 Co-57 -2.15 E-0 1 6.35E-O I 2.JO E+OO u ws SWL-2 4177 3200 1 2/28/20 17 Co-58 -8.46E-OI 9.1 3E-0 1 2.31E+OO u ws SWL-2 4 1 773200 1 2/28/20 17 Co-60 -6.95 E-0 1 6.60E-O I l.88E+OO u ws SWL-2 4177 3200 1 2/28/20 1 7 C r-51 3.l 5E+OO 1.02E+Ol 3.27E+O l u ws SWL-2 4177 3200 1 2/28/20 17 Cs-1 34 4.06E-01 7.68E-0 1 2.60E+OO u ws SWL-2 4 1 773200 1 2/28/20 1 7 Cs-1 37 l.07 E-OI 6.97E-01 2.34E+OO u ws SWL-2 41773200 1 2/28/20 1 7 Fe-59 9.2 1 E-O I 2.1 l E+OO 6.24E+OO u ws SWL-2 417732001 2/28/20 1 7 1-131 -6.1 2E+OO 4.64E+OO 1.27E+O I u ws SWL-2 4177 3200 1 2/28/20 17 K-40 1.0 3E+OI I .22E+Ol 2.71E+OI u ws SWL-2 41773200 1 2/28/20 1 7 La-1 40 -3.14E+OO 2.6 1 E+OO 7.II E+OO u ws SWL-2 417732001 2/28/20 17 Mn-54 8.68E-01 7.98E-0 1 2.72E+OO u ws SWL-2 4177 3200 1 2/28/20 1 7 N b-95 1.1 8E+OO l.52E+OO 2.81E+OO u ws SWL-2 417732001 2/28/2017 R u-10 3 -6.38E-01 l.OO E+OO 2.86E+OO u ws SWL-2 41773 20 01 2/28/2017 Ru-106 -1.7 8E+OO 6.41 E+OO 2.0 9E+OI u ws SWL-2 41773 20 01 2/28/2017 Sb-1 24 -3.17 E+OO 2.23E+OO 5.61E+OO u ws SWL-2 417732001 2/28/20 17 Sb-1 25 5.79E-01 l.89E+OO 5.94E+OO u ws SWL-2 41773 200 1 2/28/20 17 Se-75 3.24E-01 1.06E+OO 3.41E+OO u ws SWL-2 417732001 2/28/20 17 T h-228 2.4 2E-0 1 2.56E+OO 4.25E+OO u ws SWL-2 4 1 773200 1 2/28/20 1 7 Z n-65 2.69E+OO 1.72E+OO 5.86E+OO u ws SWL-2 417732001 2/28/20 1 7 Z r-95 l.45E+OO l.68E+OO 5.24E+OO u ws SWL-3 41773 2002 2/28/20 17 Ac-228 1.1 9E+OO 4.1 3E+OO 1.1 2E+O l u ws SWL-3 4 177 32002 2/28/2017 Ag-1 08m 1.61 E+OO 7.88E-0 1 2.6 1 E+OO u ws SWL-3 41773 2002 2/28/20 17 Ag-I I Om 1.75 E+OO l.34E+OO 4.69E+OO u ws SWL-3 4 1 7732002 2/28/20 17 Ba-1 40 -3.03 E+OO 9.48E+OO 3.05E+O l u ws SWL-3 417732002 2/28/20 17 Be-7 1.0 3E+O l 8.57E+OO 2.93E+O l u ws SWL-3 4177 32002 2/28/2017 Ce-1 41 l.04E+OO l.99E+OO 6.50E+OO u ws SWL-3 4 1 7732002 2/28/2017 Ce-1 44 -1.46E+OO 5.8 1 E+OO l.86E+O l u ws SWL-3 4 1 7732002 2/28/20 1 7 Co-57 -2.36E-01 7.7 1 E-0 1 2.48E+OO u ws SWL-3 4 1 7732002 2/28/20 1 7 Co-58 2.62E+OO 1.24E+OO 3.09E+OO u ws SWL-3 4 1 7732002 2/28/20 17 Co-60 -2.78E-01 9.56E-0 1 3.05E+OO u ws SWL-3 4 1 7732002 2/28/20 1 7 C r-51 -1.33E+OO 9.55E+OO 3.23E+O l u ws SWL-3 417732002 2/28/20 17 Cs-1 34 -1.47 E+OO 1.27E+OO 3.05E+OO u ws SWL-3 4 1 7732002 2/28/20 1 7 Cs-1 37 6.02E-0 1 9.1 8E-O l 3.08E+OO u ws SWL-3 4 1 7732002 2/28/20 17 Fe-59 3.1 I E+OO 2.43E+OO 8.49E+OO u ws SWL-3 4 1 7732002 2/28/20 17 1-131 -2.1 8E+OO 4.84E+OO l.5 9E+O l u ws SWL-3 4 1 7732002 2/28/20 17 K-40 3.58E+Ol 1.41 E+Ol 4.55E+O I u ws SWL-3 417732002 2/28/20 1 7 La-1 40 2.JO E+OO 3.05E+OO 1.0 5E+O I u ws SWL-3 4 1 7732002 2/28/2017 Mn-54 8.66E-01 8.44E-0 1 2.84E+OO u ws SWL-3 41773 2002 2/28/20 1 7 Nb-95 6.43E-01 1.09 E+OO 3.60E+OO u D-153 Donald C. Cook Nuclear Plant Annual Radiological Environmental Opera t ing Report 20 1 7 SAMPLE E ND CONC STD.D E V. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pC i/L) (pC i/L) ws SWL-3 417732002 2/28/20 1 7 Ru-1 03 -7.70E-0 1 1.2 1 E+OO 3.81E+OO u ws SWL-3 4 177 32002 2/28/20 1 7 Ru-1 06 -6.43E+OO 7.88E+OO 2.37E+Ol u ws SWL-3 4 1 7732002 2/28/20 1 7 Sb-1 24 2.50E+OO 2.69E+OO 9.32E+OO u ws SWL-3 417732002 2/28/20 1 7 Sb-1 25 J.17 E+OO 2.42E+OO 8.23E+OO u ws SWL-3 417732002 2/28/20 1 7 Se-75 2.46E-OI l.1 7E+OO 3.68 E+OO u ws SWL-3 417732002 2/28/20 1 7 T h-228 1.8 3E+OO 2.03E+OO 5.86E+OO u ws SWL-3 417732002 2/28/20 17 Z n-65 2.53 E+OO l.18E+OO 5.97E+OO u ws SWL-3 417732002 2/28/20 1 7 Zr-95 -2.03 E+OO 2.00E+OO 5.73E+OO u ws SWL-2 41970500 1 3/3 1/20 1 7 Ac-228 -2.1 9 E+OO 4.1 2E+OO l.25 E+OI u ws S WL-2 4 1 970500 1 3/3 1/20 1 7 Ag-10 8m -3.44E-0 1 7.23E-OI 2.35E+OO u ws SWL-2 4 1 970500 1 3/3 1/20 1 7 Ag-I I Om -J.26 E+OO l.20E+OO 3.64E+OO u ws SWL-2 4 1 970500 1 3/3 1/20 1 7 Ba-14 0 -2.3 IE+OI l.23E+OI 2.48 E+OI u ws SWL-2 419705001 3/3 1/20 1 7 Be-7 -3.74E+OO 8.1 I E+OO 2.61E+OI u ws SWL-2 41970500 1 3/3 1/20 17 Ce-141 -3.34E-OI J.86 E+OO 6.03E+OO u ws SWL-2 4 1 970500 1 3/3 1/20 1 7 Ce-14 4 -3.64 E+OO 5.38E+OO l.70 E+O I u ws SWL-2 41970500 1 3/3 1/20 1 7 Co-57 -1.1 4 E-0 1 7.1 4E-0 1 2.34 E+OO u ws SWL-2 4 1 970500 1 3/3 1/20 1 7 Co-58 -7.03 E-O I 7.99 E-OI 2.25E+OO u ws SWL-2 41970500 1 3/31/20 17 Co-60 -5.SIE-01 8.06E-0 1 2.39 E+OO u ws SWL-2 419705001 3/3 1/20 1 7 Cr-5 1 -1.00E+O I 1.06E+OI 3.39 E+O I u ws SWL-2 4 1 970500 1 3/3 1/20 1 7 Cs-1 34 -4.78 E-OI 8.60 E-01 2.58 E+OO u ws S WL-2 419705001 3/3 1/20 17 C s-137 -1.86 E+OO 9.48E-01 2.24E+OO u ws SWL-2 419705001 3/31/20 1 7 Fe-59 -2.87E-0 1 2.04E+OO 6.72E+OO u ws SWL-2 4 1 970500 1 3/3 1/20 1 7 1-131 5.38 E+OI l.3 1 E+OI l.30 E+Ol UI ws SWL-2 41970500 1 3/3 1/20 1 7 K-40 -2.59 E+O I l.53E+OJ 3.79 E+OI u ws SWL-2 419705001 3/3 1/20 1 7 La-14 0 6.09 E+OO 3.22 E+O O 1.14 E+OI u ws SWL-2 4 1 9705001 3/3 1/20 1 7 Mn-54 l.73 E+OO 9.28E-01 3. JOE+OO u ws SWL-2 4 1 970500 1 3/3 1/20 1 7 Nb-95 9.98 E-OI 8.96 E-OI 3.05E+OO u ws SWL-2 4 1 9705001 3/31/20 17 R u-1 03 6.1 4 E+OO 2.57E+OO 3.34 E+OO UI ws S WL-2 4 1 9705001 3/31/20 17 R u-1 0 6 -3.47 E-01 8.06E+OO 2.34 E+OI u ws SWL-2 4 1 970500 1 3/3 1/2017 S b-1 24 -2.29 E-OI 2.39E+OO 7.58E+OO u ws SWL-2 4 1 9705001 3/3 1/2017 Sb-1 25 4.1 5 E+OO 2.35E+OO 7.93E+OO u ws SWL-2 4 1 9705001 3/3 1/20 17 Se-7 5 -8.59 E-0 1 l.53 E+OO 3.90 E+OO u ws SWL-2 4 1 970500 1 3/31/2017 Th-228 l.33 E+OO 3.07E+OO 6.1 6 E+OO u ws SWL-2 41970500 1 3/3 1/20 17 Z n-65 6.63 E-OI 1.88E+OO 6.44E+OO u ws S WL-2 4 1 970500 1 3/31/20 1 7 Zr-95 9.78 E-O I l.5 7E+OO 5.25E+OO u ws SWL-2 4 1 9705002 3/3 1/20 1 7 H-3 5.47 E+02 4.08E+02 J.24E+03 u ws SWL-3 4 1 9705003 3/3 1/20 1 7 Ac-228 -9.80 E-01 4.36E+OO l.1 9 E+OI u ws SWL-3 4 1 9705003 3/3 1/2017 A g-1 0 8 m -7.74 E-OI 7.0S E-01 2.16E+OO u ws SWL-3 4 1 9705003 3/3 1/20 1 7 A g-1 l Om -3.38 E-O I l.28E+OO 3.53E+OO u ws SWL-3 4 1 9705003 3/3 1/20 1 7 Ba-140 -9.38 E+OO 7.57E+OO 2.20E+OI u ws SWL-3 4 1 9705003 3/3 1/2017 Be-7 -l.04 E+OO 7.4 1 E+OO 2.45E+OI u ws SWL-3 4 1 9705003 3/3 1/20 1 7 Ce-1 4 1 -1.8 1 E+OO l.96E+OO 5.98E+OO u ws SWL-3 4 1 970500 3 3/3 1/2017 Ce-1 44 -5.00 E+OO 5.58E+OO 1.57E+Ol u ws SWL-3 4 1 9705003 3/3 1/2017 Co-57 I.S O E-0 2 6.8 0 E-0 1 2.22E+OO u ws SWL-3 4 1 970500 3 3/3 1/2017 Co-58 -l.08 E+OO 8.1 3E-01 2.1 7 E+OO u ws SWL-3 4 1 970500 3 3/3 1/20 17 Co-60 l.1 2 E-02 7.75E-O l 2.57 E+OO u ws SWL-3 41970500 3 3/3 1/2017 C r-51 8.47 E+OO 9.52 E+OO 3.29 E+OI u ws SWL-3 419705003 3/3 1/2017 Cs-134 -I.83E+OO 9.07E-OI 2.0 6 E+OO u ws SWL-3 4 1 9705003 3/3 1/20 1 7 Cs-13 7 9.89 E-O I 1.63E+OO 2.88 E+OO u ws SWL-3 4 1 9705003 3/3 1/20 17 F e-5 9 4.00 E+OO 2.84E+OO 6.26 E+OO u D-1 54 Donald C. Cook N uclear Pl ant Annual Radiolo g ical Environmenta l Operating Report 2017 SAMPLE END CONC STD.D EV. MDC FLAGS TYPE STATIO N LSN DATE NUCL ID E (p C i/L) (pC i/L) (pC i/L) ws SWL-3 419705003 3/31/20 1 7 1-1 3 1 1.92E+Ol 9.25E+OO l.38E+O l Ul ws SWL-3 419705003 3/3 1/20 17 K-40 -2.78E+OO l.22E+O l 3.76E+O l u ws SWL-3 4 1 9705003 3/3 1/20 1 7 La-1 40 -2.8 1 E+OO 3.1 l E+OO 7.53E+OO u ws SWL-3 4 1 9705003 3/31/20 17 M n-54 1.1 l E+OO 8.32E-O I 2.78E+OO u ws SWL-3 4 1 9705003 3/3 1/20 1 7 Nb-95 7.79E-Ol 9.38E-O I 2.86E+OO u ws SWL-3 4 1 9705003 3/3 1/20 1 7 Ru-1 03 -2.1 8E+OO 1.1 6E+OO 3.08E+OO u ws SWL-3 419705003 3/3 1/20 17 R u-1 06 -5.1 9E+OO 6.9 1 E+OO 2.l lE+O I u ws SWL-3 4 1 9705003 3/31/20 1 7 Sb-1 24 l .65E-Ol 2.36E+OO 7.7 1 E+OO u ws SWL-3 4 1 9705003 3/3 1/20 1 7 Sb-1 25 6.43E-Ol 2.09E+OO 7.ll E+O O u ws SWL-3 419705003 3/3 1/2 0 1 7 Se-75 2.67E-Ol l.08E+OO 3.40E+O O u ws SWL-3 419705003 3/31/20 1 7 T h-228 2.9 1 E+OO 2.38E+OO 4.45E+OO u ws SWL-3 419705003 3/3 1/20 1 7 Z n-65 -3.29E-O l 1.60E+OO 5.27E+OO u ws SWL-3 419705003 3/31/20 1 7 Zr-95 -4.60E-O l l.57E+OO 4.93E+OO u ws SWL-3 4 1 9705004 3/31/20 17 H-3 4.20E+Ol 3.76E+02 l.23E+03 u ws SWL-2 42205 1 00 1 4/30/20 1 7 Ac-228 -2.29E+OO 2.76E+OO 6.73E+OO u ws SWL-2 42205100 1 4/30/20 1 7 Ag-1 08m l.78E-01 3.84E-O I l.30E+O O u ws SWL-2 42205 1 00 1 4/30/20 1 7 Ag-I I O rn 9.8 1 E-02 6.42E-O I 2.06E+OO u ws SWL-2 42205 1 00 1 4/30/20 1 7 Ba-1 40 -3.5 1 E+OO 4.7 1 E+OO l .32E+O l u ws SWL-2 42205 1 00 1 4/30/20 1 7 Be-7 3.32E+OO 4.55E+OO I .53E+O l u ws SWL-2 42205100 1 4/30/20 1 7 Ce-1 4 1 1.78E+OO 1.1 6E+OO 3.33E+OO u ws SWL-2 42205100 1 4/30/20 1 7 Ce-1 44 2.65E+OO 3.1 IE+OO I.OOE+O I u ws SWL-2 42205 1 00 1 4/30/20 1 7 Co-57 l.69E-O l 4.1 2E-OI l.34E+OO u ws SWL-2 42205100 1 4/30/20 1 7 Co-58 -5.37E-Ol 5.17E-Ol l.53E+O O u ws SWL-2 42205100 1' 4/30/20 1 7 Co-60 -3.78E-Ol 5.32E-Ol I .45E+OO u ws SWL-2 42205 1 00 1 4/30/20 1 7 C r-51 -2.52E+OO 5.2 1 E+OO l.75E+O I u ws SWL-2 42205100 1 4/30/20 1 7 Cs-134 2.82E-02 l.09E+OO l.59E+OO u ws SWL-2 42205 1 00 1 4/30/20 1 7 Cs-137 l.80E-O l 4.53E-Ol l.49E+O O u ws SWL-2 42205 1 00 1 4/30/20 1 7 Fe-59 -8.74E-Ol l.OOE+OO 3.16E+O O u ws SWL-2 422051001 4/30/20 1 7 1-13 1 9.1 7E-Ol 2.06E+OO 7.03E+OO u ws SWL-2 42205100 1 4/30/20 1 7 K-40 -l.4 1 E+O l 9.96E+OO 2.32E+O I u ws SWL-2 42205100 1 4/30/20 1 7 La-1 40 -2.76E+OO 1.65E+OO 4.43E+OO u ws SWL-2 42205100 1 4/30/20 1 7 Mn-54 6.50E-O I 4.65E-0 1 l.50E+OO u ws SWL-2 42205 1 00 1 4/30/20 1 7 Nb-95 I .35E-O l 5.1 2E-O I l.67E+OO u ws SWL-2 42205100) 4/30/20 1 7 Ru-1 03 -1.35E+OO 7.54£-0 1 l.88E+OO u ws SWL-2 4 2205 1 00 1 4/30/20 17 R u-1 06 -2.05£+00 4.04E+OO 1.29E+O I u ws SWL-2 42205100 1 4/30/20 1 7 Sb-1 24 -1.98E+OO l.38E+OO 3.81£+00 u ws SWL-2 42205 1 00 1 4/30/20 1 7 Sb-1 25 -1.32E+OO 1.1 8E+OO 3.68£+00 u ws SWL-2 42205 1 00 1 4/30/20 1 7 Se-75 -5.37E-02 6.4 1 E-0 I l.99E+OO u ws SWL-2 42205100 1 4/30/20 1 7 T h-228 8.63E-0 1 1.70£+00 3.1 5E+OO u ws SWL-2 42205 1 00 1 4/30/20 1 7 Zn-65 6.04E-02 9.23E-0 1 3.12£+00 u ws SWL-2 42205 1 00 1 4/30/20 1 7 Z r-95 7.22E-OI 8.54E-0 1 2.8 1 E+OO u ws SWL-3 42205 1 002 4/30/20 1 7 Ac-228 9.46E+OO 3.59E+OO 6.8 2£+00 UI ws SWL-3 422051002 4/30/20 1 7 Ag-108 111 3.4 1 E-OI 3.91E-0 1 1.3 1£+0 0 u ws SWL-3 42205 1 002 4/30/20 1 7 Ag-I I Om -5.35E-O I 6.0 I E-0 1 1.92£+00 u ws SWL-3 422051002 4/30/20 1 7 Ba-1 40 5.33E+OO 4.57E+OO l.50E+O I u ws SWL-3 42205 1 002 4/30/20 1 7 Be-7 4.1 6£+00 4.47E+OO 1.48£+01 u w s SWL-3 422051002 4/30/20 1 7 Ce-1 4 1 3.30E-O I l.1 2E+OO 3.59E+OO u ws SWL-3 42205 1 002 4/30/20 1 7 Ce-1 44 4.02E+OO 3.37E+OO 1.06E+O I u ws SWL-3 422051002 4/30/20 1 7 Co-57 7.62E-02 4.48£-0 1 1.34£+00 u ws SWL-3 42205 1 002 4/30/20 1 7 Co-58 -3.2 1 E-O I 5.1 6E-O I 1.70£+00 u D-1 55 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE S TA TION LSN DAT E NUCLIDE (pCi/L) (pCi/L) (pCi/L) ws SWL-3 42205 1 00 2 4/30/20 17 Co-60 4.59 E-O I 4.I I E-01 l.39E+OO u ws SWL-3 42205 1 002 4/30/20 1 7 C r-5 1 9.22E+OO 9.69E+OO l.90 E+O I u ws SWL-3 42205 10 02 4/30/2017 Cs-1 34 4.27£-01 5.1 5E-OI l.66E+OO u ws SWL-3 42205 1 002 4/30/20 1 7 Cs-1 37 J.1 9E-0 1 4.6 1 E-OI l.50 E+OO u ws SWL-3 42205 1 002 4/30/20 17 Fe-59 4.25E-0 2 l.0 7 E+OO 3.58E+OO u ws SWL-3 42205 1 002 4/30/20 1 7 1-131 -5.02E-O I 2.25E+OO 7.5 1 E+OO u ws SWL-3 42205 1 002 4/30/20 1 7 K-40 -2.83E+OO 8.76E+OO 2.1 5E+OI u ws SWL-3 42205 1 002 4/30/20 17 La-1 40 -4.66E-O I l.50 E+OO 4.72E+OO u ws SWL-3 42205 1 002 4/30/2017 Mn-54 -1.69E-O I 4.26E-O I l.42E+OO u ws SWL-3 42205 1 002 4/30/2017 Nb-95 -4.05E-01 5.73 E-OI J.75 E+OO u ws SWL-3 42205 1 002 4/30/20 1 7 Ru-10 3 -8.30E-O I 6.34E-01 l.90E+OO u ws SWL-3 42205 1 002 4/30/20 1 7 R u-1 06 4.52 E+OO 4.60E+OO 1.36 E+O I u ws SWL-3 42205 100 2 4/30/20 1 7 S b-1 24 l.1 7E+OO l.34 E+OO 4.44E+OO u ws SWL-3 42205 1 002 4/30/20 1 7 Sb-1 25 3.86E+OO l.56 E+OO 4.44E+OO u ws SWL-3 42205 1 002 4/30/20 17 Se-75 -1.01 E-01 5.97E-01 2.03E+OO u ws SWL-3 42205 1 002 4/30/20 1 7 T h-228 -6.00E-0 1 l.41 E+OO 3.20E+OO u ws SWL-3 42205 1 002 4/30/20 1 7 Z n-6 5 -1.51 E+OO 1.0 I E+OO 2.9 1 E+OO u ws SWL-3 42205 10 02 4/30/2017 Zr-95 -l.34 E-0 2 9.5 1 E-01 3.03E+OO u ws SWL-2 42458600 1 5/3 1/20 1 7 Ac-228 2.44E+OO 6.06E+OO l.90E+O I u ws SWL-2 42458600 1 5/3 1/2017 Ag-1 08m 3.1 5E-0 1 1.04E+OO 3.45E+OO u ws SWL-2 42458600 1 5/3 1/2017 Ag-1 l Om 5.79E-01 l.53 E+OO 4.77E+OO u ws SWL-2 42458600 1 5/3 1/20 1 7 Ba-1 40 2.1 7E+O I l.92 E+O I 5.89E+OI u ws SWL-2 42458600 1 5/3 1/2017 Be-7 -l.58E+OO I .24E+O l 3.98E+OI u ws SWL-2 42458600 1 5/3 1/20 1 7 Ce-14 1 -5.1 I E+OO 3.49E+OO 9.50E+OO u ws SWL-2 42458600 1 5/3 1/2 017 Ce-1 44 4.72E+OO 8.9 9E+OO 2.89E+OI u ws SWL-2 42458600 1 5/3 1/20 1 7 Co-57 2.25E+OO l.69E+OO 3.51 E+OO u ws SWL-2 42458600 1 5/3 1/2017 Co-58 -7.80 E-O I l.64E+OO 4.50 E+OO u ws SWL-2 42458600 1 5/3 1/20 17 C o-60 l.l OE+OO l.1 2E+OO 4.08E+OO u ws SWL-2 42458600 1 5/3 1/20 1 7 C r-51 -3.09E+OO l.66E+O I 5.46 E+O I u ws SWL-2 42458600 1 5/3 1/20 1 7 Cs-13 4 -2.1 3E+OO l.38E+OO 3.52E+OO u ws SWL-2 42458600 1 5/3 1/2017 Cs-1 37 -9.26E-OI 1.2 1 E+OO 3.77E+OO u ws SWL-2 42458600 1 5/3 1/20 1 7 Fe-59 -l.35E+OO 3.1 7E+OO 9.80E+OO u ws SWL-2 42458600 1 5/3 1/20 1 7 1-1 3 1 9.56E+OO 7.45 E+OO 2.56E+O I u ws SWL-2 42458600 1 5/3 1/20 1 7 K-40 l.70E+O I l.9 1 E+OI 3.40 E+O I u ws SWL-2 42458600 1 5/3 1/2017 La-140 -5.56 E+OO 4.92E+OO l.33E+O I u ws SWL-2 42458600 1 5/3 1/20 1 7 Mn-54 6.54 E-OI I.OI E+OO 3.59E+OO u ws SWL-2 42458600 1 5/3 1/20 17 N b-95 -l.66E+OO l.78E+OO 5.17 E+OO u ws SWL-2 42458600 1 5/3 1/20 1 7 Ru-10 3 -2.94E+OO 2.1 9E+OO 5.04E+OO u ws SWL-2 42458600 1 5/3 1/2017 Ru-1 06 -1.92E+OO I.II E+O I 3.45E+OI u ws SWL-2 424586001 5/3 1/20 1 7 Sb-1 24 2.66E+OO 3.1 7E+OO l.1 8E+OI u ws SWL-2 424586001 5/3 1/2017 Sb-1 25 7.40 E+OO 6.23E+OO 1.26E+OI u ws SWL-2 424586001 5/3 1/20 1 7 Se-75 -5.21E-O I l.76 E+OO 5.83E+OO u ws SWL-2 424586001 5/3 1/20 1 7 Th-228 -2.98E+OO 3.1 2E+OO 9.84E+OO u ws SWL-2 424586001 5/3 1/20 1 7 Z n-65 6.26 E+OO l.98E+OO 5.31 E+OO U I ws SWL-2 42458600 1 5/3 1/20 1 7 Zr-95 -4.6 1 E+OO 2.95E+OO 7.43 E+OO u ws SWL-3 424586002 5/3 1/2017 Ac-228 -6.22E+OO 4.99E+OO l.46 E+O I u ws SWL-3 424586002 5/3 1/20 17 A g-1 08m 7.44E-OI 8.97E-O I 3.1 4 E+OO u ws SWL-3 424586002 5/3 1/20 1 7 Ag-ll Om -2.38E+OO l.68E+OO 4.33E+OO u ws SWL-3 424586002 5/3 1/20 1 7 Ba-140 l.37E+O I 9.57E+OO 3.40E+OI u ws SWL-3 424586002 5/3 1/20 17 Be-7 -l.55E+OO 8.27E+OO 2.74 E+O I u D-156 Donald C. Cook Nuclear P l ant Annual Radiological Environmental Operating Report 2017 SAMPLE E ND CONC STD.D E V. MDC F LAGS TYP E STATION LSN DATE NUCLIDE (pCi/L) (pC i/L) (p C i/L) ws SWL-3 424586002 5/31/20 17 Ce-1 4 1 2.26E+OO 2.30E+OO 7.61E+OO u ws SWL-3 424586002 5/3 1/2017 Ce-1 44 -8.33E+OO 6.43E+OO 1.84E+O I u ws SWL-3 424586002 5/31/20 1 7 Co-57 3.24E-02 8.37E-Ol 2.73E+OO u w s SWL-3 424586002 5/31/20 17 Co-58 3.28E-02 9.83E-01 3.2IE+OO u ws SWL-3 424586002 5/31/20 1 7 Co-60 -6.07 E-O l 7.73E-0 1 2.2IE+OO u ws SWL-3 424586002 5/3 1/2017 Cr-5 1 -I.4 1 E+O I I.14 E+OI 3.44E+O I u ws SWL-3 424586002 5/3 1/20 17 Cs-1 34 -4.63E-Ol 9.85E-Ol 3.0IE+OO u ws SWL-3 42458 60 02 5/3 1/20 17 Cs-1 37 -7.2 l E-Ol l.0 4E+OO 3.1 7E+OO u ws SWL-3 424586002 5/31/2 017 Fe-59 I.84 E+OO 2.08 E+OO 7.32E+OO u ws SWL-3 424586002 5/3 1/2017 1-131 4.36E+OO 5.34E+OO l.88 E+OI u ws SWL-3 424586002 5/31/20 17 K-40 -3.1 5 E+Ol 1.46E+O l 3.80E+OI u ws SWL-3 424586002 5/3 1/2017 La-1 40 -7.52E-01 3.1 8E+O O 1.02 E+O I u ws SWL-3 424586002 5/3 1/2 017 Mn-54 -1.97E-O I l.1 3E+OO 3.59E+OO u ws SWL-3 424586002 5/31/2 017 Nb-95 -I.46 E+OO I.46E+OO 3.63E+OO u ws SWL-3 424586002 5/3 1/20 17 Ru-103 -5.75 E-OI I.21 E+OO 3.90E+OO u ws SWL-3 424586002 5/31/20 17 R u-10 6 -6.66E+OO 8.14E+OO 2.43E+O I u ws SWL-3 424586002 5/3 1/20 1 7 Sb-1 24 -2.48E+OO I.90E+OO 3.7 1 E+OO u ws SWL-3 42458 6002 5/3 1/20 1 7 Sb-1 25 l.66E+OO 2.62E+OO 9.13 E+OO u ws SWL-3 424586002 5/31/20 17 Se-75 4.76E-OI l.4 1 E+O O 4.52E+OO u ws SWL-3 424586002 5/3 1/20 1 7 Th-228 2.6 0E-OI 2.54E+OO 7.26E+OO u ws SWL-3 424586002 5/3 1/20 1 7 Z n-65 9.32E-02 2.1 l E+OO 6.02E+OO u ws SWL-3 4 24586002 5/3 1/2017 Z r-95 -7.00 E-02 1.97E+OO 6.42E+OO u ws SWL-2 42711800 1 6/30/20 1 7 Ac-228 l.55 E+O I 3.74 E+OO 5.27E+OO Ul ws SWL-2 427118001 6/30/2017 Ag-1 08 m 3.98E-Ol 3.99E-0 1 l.3 0E+OO u ws SWL-2 42711800 1 6/30/2017 Ag-1 I Om -4.8 3E-Ol 6.23E-0 1 1.98E+OO u ws SWL-2 427118001 6/30/2017 Ba-1 40 7.00E+OO 5.0IE+OO I.60E+OI u ws SWL-2 427118001 6/30/2017 B e-7 5.1 9E+OO 4.86E+OO l.57 E+O I u ws SWL-2 42711800 1 6/30/20 1 7 Ce-141 8.57E-01 2.08 E+OO 3.46E+OO u ws SWL-2 427118001 6/30/2017 Ce-14 4 4.22E-01 3.20E+OO I.OI E+O I u ws SWL-2 42711800 1 6/30/2017 C o-57 -2.95E-0 1 4.24E-OI 1.3 I E+OO u ws SWL-2 427118001 6/30/2017 Co-58 4.SOE-01 4.89E-O I l.65E+OO u ws SWL-2 427118001 6/30/2017 Co-60 8.78E-OI 5.37E-01 l.72E+OO u ws SWL-2 42711800 1 6/30/2017 C r-5 1 l.78 E+OO 5.95E+OO l.99 E+O I u ws SWL-2 427118001 6/30/2017 Cs-1 34 -2.S6E-Ol S.76E-01 l.54E+OO u w s SWL-2 42711800 1 6/30/20 17 Cs-137 -l.15 E+OO 8.28 E-01 1.59 E+OO u ws SWL-2 42711800 1 6/30/2017 Fe-59 -2.73 E+OO I.29E+OO 3.28E+OO u w s SWL-2 427118001 6/30/2017 1-131 -9.23E-01 4.72 E+OO 8.94E+OO u w s SWL-2 42711800 1 6/30/20 17 K-4 0 2.57 E+O I 1.1 6E+Ol 1.2 5E+O I Ul ws SWL-2 427118001 6/30/20 1 7 La-1 40 -2.02E+OO l.63E+OO 4.9 1 E+OO u w s SWL-2 42711800 1 6/30/20 1 7 Mn-54 5.36E-01 4.45E-OI l.49 E+OO u ws SWL-2 42711800 1 6/30/20 17 Nb-95 l.1 8E+OO 1.1 I E+OO I.7 1 E+OO u ws SWL-2 42711800 1 6/30/2017 R u-10 3 -I.40 E-O I 6.70E-OI I.91E+OO u ws SWL-2 427 11 800 1 6/30/2017 R u-10 6 1.1 6E+OO 4.1 9E+OO 1.34E+O I u w s SWL-2 42711800 1 6/30/2017 Sb-1 24 1.33E+OO l.29E+OO 4.39E+OO u ws SWL-2 4 27 11 800 1 6/30/20 1 7 Sb-1 25 8.47E-01 l.17 E+OO 3.83E+OO u ws SWL-2 42711800 1 6/30/20 17 Se-75 -1.37E-OI 6.0SE-01 2.04E+OO u ws SWL-2 427118001 6/30/2017 Th-228 2.43E+OO 2.28 E+OO 3.60E+OO u ws SWL-2 42711800 1 6/30/2017 Z n-65 4.73E-01 1.05E+OO 3.06E+OO u ws SWL-2 427 11 800 1 6/30/2017 Z r-95 1.1 5E+OO 9.1 6E-OI 3.08E+OO u w s SWL-2 4 2 711 8002 6/30/2017 H-3 -3.0 3E+Ol 1.52E+02 5.0 2E+02 u D-15 7 Donald C. Cook Nuclear Pl a nt Annua l Rad i ological Environmental Op e ratin g R e port 2 01 7 SAMPLE E ND CONC STD.D EV. MD C FLAGS TYPE STATION LSN D ATE NUC LID E (pCi/L) (pCi/L) (pCi/L) ws SWL-3 427 11 8003 6/30/20 1 7 Ac-228 2.08E-O I 3.8 1 E+OO 5.72E+OO u ws SWL-3 427 11 8003 6/30/20 1 7 Ag-1 08 m 2.94E-O I 3.33E-O I 1.1 2E+OO u ws SWL-3 427 1 1 8003 6/30/20 1 7 Ag-I I O m -2.66E-02 5.24E-O I l.67E+OO u ws SWL-3 4271 1 8003 6/30/20 1 7 Ba-1 40 5.94E+OO 4.28E+OO I .40E+O I u ws SWL-3 427 1 1 8003 6/30/20 1 7 Be-7 4.42E-0 1 3.93E+OO l.3 1 E+Ol u ws SWL-3 427 11 8003 6/30/20 1 7 Ce-1 4 1 -2.1 8E+OO l.05E+OO 2.85E+OO u ws SWL-3 427 1 1 8003 6/30/2017 Ce-1 44 -4.1 6E+OO 2.7 1 E+OO 7.97E+OO u ws SWL-3 427 1 1 8003 6/30/20 1 7 Co-57 -8.86E-02 3.28E-0 1 l.06E+OO u ws SWL-3 427 1 1 8003 6/30/20 1 7 Co-58 -3.63E-O I 4.29E-0 1 1.3 I E+OO u ws SWL-3 427 1 1 8003 6/30/20 1 7 Co-60 J.03E-O I 3.59E-0 1 l.20E+OO u ws SWL-3 427 1 1 8003 6/30/20 1 7 C r-5 I -1.33E-O I 4.83 E+OO l.65E+O I u ws SWL-3 427 1 1 8003 6/30/20 1 7 Cs-1 34 2.29 E-O I 4.42 E-0 1 l.37E+OO u ws SWL-3 427 1 1 8003 6/3 0/2 0 1 7 Cs-1 37 7.20E-O I 9.8 1 E-0 1 l.3 I E+OO u ws SWL-3 427 11 8003 6/30/20 1 7 Fe-59 -5.73E-O I 9.33E-0 1 3.04E+OO u ws SWL-3 427 1 1 8003 6/30/20 1 7 1-1 3 I l.27E+OO 2.29E+OO 7.78E+OO u ws SWL-3 427 11 8003 6/30/20 1 7 K-40 8.74E+OO J.O I E+O l l.0 9E+O I u ws SWL-3 427 11 8003 6/30/20 1 7 La-1 40 -1.4 1 E+OO J.29E+OO 3.8 1 E+OO u ws SWL-3 427 1 1 8003 6/30/20 1 7 Mn-54 3.37E-0 1 3.93E-O I l.2 7 E+OO u ws SWL-3 427 11 800 3 6/30/20 1 7 Nb-95 -2.23E-O I 4.43E-O I 1.39E+OO u ws SWL-3 427 1 1 8003 6/30/20 17 R u-1 03 -2. I OE-0 2 5.68E-01 l.69E+OO u ws SWL-3 427 1 1 8003 6/30/20 1 7 R u-1 06 2.5 4E+OO 3.40E+OO l.1 2E+OI u ws SWL-3 427 11 8003 6/30/20 17 S b-1 24 3.88E-0 1 1.20E+OO 3.47E+OO u ws SWL-3 427 1 1 8003 6/30/20 1 7 S b-1 25 -2.58£-0 1 l.0 5E+OO 3.5 0 E+OO u ws SWL-3 427 1 1 8003 6/30/20 1 7 Se-75 2.47E-O I 5.59E-OI l.75E+OO u ws SWL-3 427 11 8003 6/30/20 17 T h-228 3.63E-0 1 l.23E+OO 2.80E+OO u ws SWL-3 42 71 1 8003 6/3 0/20 17 Z n-65 -l.32E+OO 8.6 1£-01 2.3 1 E+OO u ws SWL-3 427 1 1 800 3 6/30/20 1 7 Zr-95 l.OO E+OO 8.24E-O I 2.66E+OO u ws SWL-3 427 11 8004 6/3 0/20 1 7 H-3 -2.40E+02 1.49£+02 5.0 7E+02 u ws SWL-2 42934000 1 7/3 1/20 1 7 Ac-228 6.57E+OO 3.67E+OO 7.98E+OO u ws SWL-2 42934000 1 7/3 1/20 1 7 Ag-1 08m -3.99E-0 2 4.85E-O I l.62E+OO u ws SWL-2 42934000 1 7/3 1/2 01 7 Ag-11 0 111 -7.25E-O I 6.90E-O I 2.0 I E+OO u ws SWL-2 42934000 1 7/31/20 1 7 Ba-1 40 l.22E+OO 4.83E+OO l.6 1 E+O I u ws SWL-2 42934000 1 7/3 1/20 1 7 Be-7 -4.97E+O O 5.5 1 E+OO 1.74E+O l u ws SWL-2 42934000 1 7/3 1/20 1 7 Ce-1 4 1 l.96E+OO 2.38E+OO 4.08E+OO u ws SWL-2 42934000 1 7/31/20 1 7 Ce-1 44 4.98 E+OO 5.95E+OO l.3 6E+O l u ws SWL-2 42934000 1 7/3 1/20 1 7 Co-57 -3.95E-O I 5.66E-01 l.77E+OO u ws SWL-2 42934000 1 7/3 1/20 1 7 Co-58 -1.66E+OO 6.93E-O I l.57E+OO u ws SWL-2 42934000 1 7/3 1/20 1 7 Co-60 l.03E+OO 6.1 4E-0 1 2.06E+OO u ws SWL-2 42934000 1 7/3 1/20 1 7 C r-5 1 -1.59E+O l 7.76E+OO 2.20E+Ol u ws SWL-2 429340001 7/3 1/20 1 7 Cs-134 l.85E-O I 5.63£-01 l.84E+OO u ws SWL-2 42934000 1 7/3 1/20 1 7 Cs-137 3. I 3E-0 1 5.24£-0 1 l.74E+OO u ws SWL-2 429340001 7/3 1/20 1 7 Fe-59 -3.4 1£-0 1 l.25E+OO 4.1 9E+OO u ws SWL-2 42934000 1 7/31/20 1 7 1-1 3 1 7.83E+OO 3.40E+OO 8.0 I E+OO u ws SWL-2 42934000 1 7/3 1/20 1 7 K-40 -l.40E+O I 1.42E+O I 2.88E+O I u ws SWL-2 42934000 1 7/31/20 1 7 La-1 40 -5.1 lE+OO 2.3 1 E+OO 5.62E+OO u ws SWL-2 429340001 7/31/2 0 1 7 Mn-54 3.1 7E-0 1 5.52E-0 1 l.8 0 E+OO u ws SWL-2 42934000 1 7/3 1/20 1 7 Nb-95 -4.37E-0 1 6.8 1£-0 1 2.1 2E+OO u ws SWL-2 429340001 7/3 1/20 17 R u-1 03 -1.39E+O O 7.61£-0 1 2.1 4E+OO u ws SWL-2 42934000 1 7/3 1/20 1 7 R u-1 06 -4.30E+OO 4.97E+OO l.54E+OI u ws SWL-2 429 3 40001 7/3 1/20 1 7 Sb-1 24 -7.55£-0 1 l.4 1 E+OO 4.40E+OO u D-158 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) ws SWL-2 429340001 7/31/2017 S b-1 25 4.36E-Ol l.54E+OO 5.20E+OO u ws SWL-2 429340001 7/31/20 1 7 Se-75 8.09E-01 9.00E-0 1 2.79E+OO u ws SWL-2 429340001 7/3 1/2017 Th-228 6.20E+OO 3.08E+OO 4.79E+OO Ul ws SWL-2 42934000 1 7/31/20 17 Zn-65 1.17£+00 1.21£+00 3.75£+00 u ws SWL-2 429340001 7/3 1/2017 Z r-9 5 -9.37E-OI 1.1 6E+OO 3.57E+OO u ws SWL-3 429340002 7/3 1/2017 Ac-228 2.18£-01 4.0IE+OO 8.15 E+OO u ws SWL-3 429340002 7/31/20 1 7 Ag-108 m -4.82 E-03 4.51£-0 1 1.47£+00 u ws SWL-3 429340002 7/3 1/2017 Ag-I I Orn -1.87E-OI 6.86E-Ol 2.25E+OO u ws SWL-3 429340002 7/31/2017 Ba-1 40 2.2 1£+01 1.30£+0 1 1.40£+01 UI ws SWL-3 429340002 7/3 1/20 17 Be-7 8.7 1 E-OI 5.12£+00 1.67£+0 1 u ws SWL-3 429340002 7/31/20 1 7 Ce-141 4.93E+OO 1.57 E+OO 3.67E+OO UI ws SWL-3 429340002 7/31/20 1 7 Ce-1 44 -4.63 E-OI 3.65E+OO 1.15E+O I u ws SWL-3 429340002 7/31/20 17 Co-57 -9.92E-02 4.98E-01 l.57E+OO u ws SWL-3 429340002 7/31/2017 Co-5 8 -7.60 E-OI 5.59£-01 1.67E+OO u ws SWL-3 429340002 7/31/20 17 Co-60 -4.42 E-Ol 5.30E-O I 1.58E+OO u ws SWL-3 429340002 7/3 1/2017 Cr-5 1 -l.25 E+OO 6.53E+OO l.93 E+O l u ws SWL-3 429340002 7/31/20 17 Cs-1 34 4.7 1£-01 5.96£-0 1 2.02E+OO u ws SWL-3 429340002 7/3 1/2017 Cs-1 37 -6.34E-01 5.52£-01 1.74£+00 u ws SWL-3 429340002 7/3 1/2017 Fe-59 1.7 1£+00 1.32£+00 4.35£+00 u ws SWL-3 429340002 7/31/20 17 1-1 3 1 1.8 1£+00 2.94E+OO 7.06£+00 u ws SWL-3 429340002 7/31/2017 K-40 7.72E+OO 1.63£+0 1 l.73E+Ol u ws SWL-3 429340002 7/3 1/20 1 7 La-1 40 -2.29 E+OO l.83 E+OO 4.53E+OO u ws SWL-3 429340002 7/3 1/2017 Mn-54 -3.74E-OI 5.07£-0 1 l.62E+OO u ws SWL-3 429340002 7/3 1/2017 N b-95 5.85E-01 6.58E-OI 2.00E+OO u ws SWL-3 429340002 7/31/2017 R u-103 -7.24£-01 6.81E-0 1 2.05E+OO u ws SWL-3 429340002 7/3 1/2017 Ru-I 06 5.30E+OO 4.63E+OO I .49E+O I u ws SWL-3 429340002 7/31/20 1 7 Sb-1 24 l.98E+OO l.48 E+OO 5.07£+00 u ws SWL-3 429340002 7/31/2017 Sb-1 25 -1.43£+00 1.40 E+OO 4.31E+OO u ws SWL-3 429340002 7/31/20 1 7 Se-75 I .43E+OO 7.90£-01 2.51£+00 u ws SWL-3 429340002 7/31/20 1 7 Th-228 -1.1 5£+00 l.92 E+OO 4.18E+OO u ws SWL-3 429340002 7/31/2017 Z n-65 -I .43E+OO 1.2 I E+OO 3.57£+00 u ws SWL-3 429340002 7/31/20 1 7 Zr-95 -2.52£+00 1.47£+00 2.92E+OO u ws SWL-2 432145001 8/31/20 1 7 Ac-228 -5.96E+OO 3.73£+00 6.46E+OO u ws SWL-2 43214500 1 8/31/20 1 7 Ag-108m 2.49E-OI 3.6 1 E-Ol l.23E+OO u ws SWL-2 432145001 8/31/20 1 7 Ag-I I Om 6.99E-OI 6.73£-01 l.83E+OO u ws SWL-2 432145001 8/3 1/20 17 Ba-140 -3.37E-01 4.23£+00 1.41E+O l u ws SWL-2 43 214500 1 8/3 1/2017 Be-7 -2.78E+OO 4.33£+00 1.42E+OI u ws SWL-2 432145001 8/3 1/2017 Ce-141 5.06E-OI 1.1 7£+00 3.48E+OO u ws SWL-2 432145001 8/3 1/2017 Ce-14 4 -4.66E-OI 3.18E+OO l.02 E+O I u ws SWL-2 43214500 1 8/3 1/2017 Co-57 8.58E-01 4.53£-01 l.36E+OO u ws SWL-2 432145001 8/31/2017 Co-5 8 2.07£-01 4.58E-01 1.52 E+OO u ws SWL-2 432145001 8/31/20 1 7 Co-60 7.89£-01 4.74E-OI l.60E+OO u ws SWL-2 43214500 1 8/3 1/20 1 7 Cr-SI 4.43E+OO 5.72E+OO 1.96£+01 u ws SWL-2 43214500 1 8/31/20 1 7 Cs-1 34 l.07 E-O I 4.27£-0 1 1.41 E+OO u ws SWL-2 432145001 8/31/2017 Cs-137 3.94E-O I 4.23 E-OI 1.41 E+OO u ws SWL-2 432145001 8/31/2017 Fe-59 -6.7 1 E-O I 1.13£+00 3.49E+OO u ws SWL-2 432 1 45001 8/31/2017 1-13 1 5.0IE-01 2.41E+OO 8.24E+OO u ws SWL-2 432145001 8/31/20 1 7 K-40 -1.96E+OI 9.76E+OO 2.37£+0 1 u ws SWL-2 432145001 8/3 1/2017 La-140 -2.II E-01 l.30E+OO 4.3 1 E+OO u ws SWL-2 432145001 8/3 1/2 0 1 7 Mn-54 -6. l OE-01 4.32E-0 1 1.25£+00 u D-1 59 Donald C. Cook Nuclear Plant Annual Radiological Env i ronmental Operating Report 2 0 1 7 SAMPLE END CONC ST D.DEV. MDC FLAGS TYPE S T ATION LSN D ATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) ws SWL-2 432 1 4500 1 8/3 1/20 1 7 Nb-95 -l.68E+OO 8.75E-OI 1.50E+OO u ws SWL-2 432 1 4500 1 8/3 1/20 1 7 R u-I 03 -J.09E-0 1 5.05E-0 1 1.68E+OO u ws SWL-2 432 1 4500 1 8/3 1/20 17 R u-1 06 -2.00E+OO 3.69E+OO 1.1 9E+O I u ws SWL-2 432 1 4500 1 8/3 1/20 1 7 Sb-1 24 -1.63E+OO l.18 E+OO 3.44E+OO u ws SWL-2 432 1 4500 1 8/3 1/20 1 7 Sb-1 25 1.30E+OO l.1 4E+OO 3.82E+OO u ws SWL-2 432 1 45001 8/3 1/2017 Se-75 I.O J E-0 1 6.59E-O I 2.07E+OO u ws SWL-2 432 1 45001 8/3 1/20 1 7 T h-228 l.36E+OO l.83E+OO 2.65E+OO u ws SWL-2 432 1 4500 1 8/3 1/20 1 7 Zn-65 -4.93 E-O I 9.48E-0 1 2.59E+OO u ws SWL-2 432145001 8/3 1/20 1 7 Zr-95 -3.32E-O I 8.2 1 E-O l 2.64E+OO u ws SWL-3 432 1 45002 8/3 1/20 1 7 Ac-228 -2.59E+OO 2.3 I E+OO 5.42E+OO u ws SWL-3 432 1 45002 8/3 1/20 1 7 A g-1 08m 6.1 3E-O I 3.59E-O I 1.1 3E+OO u ws SWL-3 432 1 45002 8/3 I/20 1 7 A g-I I Om -3.90E-O I 4.96E-O I 1.51E+OO u ws SWL-3 432 1 45002 8/3 1/20 1 7 Ba-1 40 -1.53E+OO 7.1 2E+OO 1.44E+O l u ws SWL-3 432 1 45002 8/3 1/20 1 7 Be-7 -3.94E+OO 3.95E+OO 1.25E+O I u ws SWL-3 432 1 45002 8/3 1/20 1 7 Ce-1 4 1 -J.48E+OO 9.92E-O I 2.9 1 E+OO u ws SWL-3 432 1 45002 8/3 1/20 1 7 Ce-1 44 7.69E-O I 2.64E+OO 8.59E+OO u ws SWL-3 432145002 8/31/20 1 7 Co-5 7 1.87E-O I 3.36E-O I 1.l OE+OO u ws SWL-3 432 1 45002 8/3 1/20 1 7 Co-58 3.67E-O I 4.2 0E-0 1 l.39E+OO u ws SWL-3 432145002 8/3 1/20 1 7 Co-60 l.66E-02 3.37£-0 1 1.1 4E+OO u ws SWL-3 432 1 45002 8/3 1/20 1 7 Cr-5 1 -7.60E+OO 6.89E+OO l.6 1 E+O I u ws SWL-3 432 1 45002 8/3 1/20 1 7 Cs-1 34 9.63£-0 1 5.2 1£-01 1.28E+OO u ws SWL-3 432 1 45002 8/3 1/20 1 7 Cs-1 37 -6.32E-O I 3.97£-0 1 1.1 3E+OO u ws SWL-3 432 1 45002 8/3 1/20 1 7 Fe-59 -7.40£-0 1 l.02E+OO 3.08E+OO u ws SWL-3 432 1 45002 8/3 1/20 I 7 1-1 3 1 2.3 1 E+OO 2.72E+OO 7.33E+OO u ws SWL-3 432 1 45002

8/3 1/20 1 7 K-40 l.OOE+O I 9.42E+OO 1.3 1 E+O I u ws SWL-3 432 1 45002 8/3 1/20 17 La-1 40 -1.54E+OO l.39E+OO 4.1 6E+OO u ws SWL-3 432 1 45002 8/3 1/20 1 7 Mn-54 -2.08E-O I 3.87E-OI 1.22E+OO u ws SWL-3 432 1 45002 8/3 1/20 1 7 Nb-95 6.74E-O I 4.62E-0 1 l.S I E+OO u ws SWL-3 432 1 45002 8/3 1/20 1 7 Ru-I 03 2.22E-0 1 5.77E-O I 1.76E+OO u ws SWL-3 432 1 45002 8/3 1/20 I 7 Ru-10 6 3.52E+OO 3.56E+OO 1.1 9E+OI u ws SWL-3 432 1 45002 8/3 1/20 1 7 Sb-1 24 -2.88E+OO I .33E+OO 3.1 9E+OO u ws SWL-3 432 1 45002 8/3 1/2 0 1 7 Sb-1 25 -4.60E-O I 9.8 1 E-0 1 3.26E+OO u ws SWL-3 432 1 45002 8/3 1/20 1 7 Se-75 7.0IE-0 1 5.57E-O I 1.74E+OO u ws SWL-3 432 1 45002 8/3 1/20 1 7 T h-228 -1.97E-OI l.36E+OO 2.86E+OO u ws SWL-3 432 1 45002 8/3 1/20 1 7 Z n-65 -1.58E+OO 9.04E-O I 2.32E+OO u ws SWL-3 432 1 45002 8/3 1/20 1 7 Z r-95 I.5 7E-O I 8.07E-0 1 2.66E+OO u ws SWL-2 43405900 1 9/30/20 1 7 Ac-228 9.1 9E+OO 6.09E+OO 8.74E+OO U I ws SWL-2 43405900 1 9/30/20 1 7 Ag-1 08m l.76E+OO l.99E+OO 2.28E+OO u ws SWL-2 434059001 9/30/20 1 7 A g-I I Om 1.96E+OO l.03E+OO 3.I OE+OO u ws SWL-2 434059001 9/30/20 1 7 Ba-140 -2.1 4E+OO 8.1 I E+OO 2.57E+OI u ws SWL-2 434059001 9/3 0/20 1 7 Be-7 -2.28E+OO 7.99E+OO 2.55E+OI u ws SWL-2 434059001 9/30/2017 Ce-1 41 7.02E-0 1 2.27E+OO 6.6 1 E+OO u ws SWL-2 434059001 9/30/20 1 7 Ce-1 44 -9.88E-O I 5.80E+OO 1.8 1 E+OI u ws SWL-2 43405900 1 9/30/20 1 7 Co-57 3.1 3E-O I 8.70E-0 1 2.77E+O O u ws SWL-2 43405900 1 9/30/20 1 7 Co-58 3.68E-O I 7.77E-0 1 2.70E+OO u ws SWL-2 434059001 9/30/20 1 7 Co-60 9.38E-O I 8.96E-0 1 3.1 2E+OO u ws SWL-2 43405900 1 9/30/20 1 7 C r-5 1 8.36E+OO 1.04E+O I 3.S I E+OI u ws SWL-2 43405900 1 9/30/20 1 7 Cs-1 34 -I. I 8E+O O 1.2 1 E+OO 3.0 I E+OO u ws SWL-2 43405900 1 9/30/20 1 7 Cs-1 37 -9. I SE-02 8.99E-O I 2.84E+OO u ws SWL-2 43405900 1 9/30/20 1 7 Fe-59 -1.27E+OO 2.I OE+OO 6.52E+OO u 0-160 Donald C. Cook Nuclear Pl a n t Annu al Radiologi c al Environmental Operating Report 2017 SAMPLE END CONC STD.D E V. MDC FLAGS TYPE STATIO N LS N DATE NUCLI D E (p Ci/L) (pCi/L) (pCi/L) ws SWL-2 43405900 1 9/30/20 1 7 1-131 -2.3 0 E+OO 4.28E+OO I .37E+O I u ws SWL-2 43405900 1 9/30/20 1 7 K-40 1.72E+OO 1.88E+O l 2.54E+OI u ws SWL-2 43405900 1 9/30/20 1 7 La-1 40 -3.25E+OO 3.38E+OO 9.SOE+OO u ws SWL-2 43405900 1 9/30/20 17 M n-54 3.2 1 E-01 7.69E-O l 2.65E+OO u ws SWL-2 43405900 1 9/30/20 1 7 N b-95 3.65E+OO l.94E+O O 2.72E+O O UI ws SWL-2 43405900 1 9/30/20 1 7 R u-1 03 -9.1 6E-OI l.02E+OO 3.06E+OO u ws SWL-2 43405900 1 9/30/20 1 7 Ru-1 06 2.70E-O l 7.3 1 E+OO 2.34E+O I u ws SWL-2 43405900 1 9/30/20 1 7 Sb-1 24 -6.56E-0 1 2.40E+OO 7.IOE+OO u ws SWL-2 43405900 1 9/30/20 1 7 Sb-1 25 -1.9 1 E-OI 2.1 I E+OO 6.88E+OO u ws SWL-2 43405900 1 9/30/20 1 7 Se-75 3.64E-01 1. I 8E+OO 4.0 I E+O O u ws SWL-2 43405900 1 9/30/20 1 7 T h-228 -l.55E+OO 2.24E+OO 6.72E+OO u ws SWL-2 43405900 1 9/30/20 1 7 Z n-65 l.20E+OO l.95E+OO 6.67E+OO u ws SWL-2 43405900 1 9/30/20 1 7 Zr-95 -6.00E-01 1.68E+OO 5.55E+OO u ws SWL-2 434059002 9/30/20 1 7 H-3 6.40E+02 4.28E+02 1.2 9E+03 u ws SWL-3 434059003 9/30/20 1 7 Ac-228 -3.5 1 E-Ol 3.89E+-OO l.07E+O I u ws SWL-3 434059003 9/30/20 1 7 Ag-1 08 m 2.2 1 E-Ol 6.38E-O I 2.1 4E+OO u ws SWL-3 434059003 9/30/20 1 7 Ag-1 l O m 7.36E-O I 9.78E-O I 3.44E+O O u ws SWL-3 434059003 9/30/20 1 7 Ba-1 40 -1.1 4E+Ol 8.00E+OO 2.2 1 E+O l u ws SWL-3 434059003 9/30/20 1 7 Be-7 1.0 I E+OO 7.34E+OO 2.43E+O I u ws SWL-3 434059003 9/30/20 1 7 Ce-1 4 1 -2.95E+OO 2.60E+OO 5.8 1 E+O O u ws SWL-3 434059003 9/30/20 1 7 Ce-1 44 -2.70E+OO 5.38E+OO l.67E+O I u ws SWL-3 434059003 9/30/20 1 7 Co-57 9.2 1 E-Ol 6.88E-0 1 2.20E+O O u ws SWL-3 434059003 9/30/20 1 7 Co-58 6.2 1 E-O I 8.76E-O I 3.07E+O O u ws SWL-3 434059003 9/30/20 1 7 Co-60 8.9 1 E-O l 8.47E-O l 2.96E+OO u ws SWL-3 434059003 9/30/20 1 7 C r-51 -3.93E+OO 8.80E+OO 2.89E+O I u ws SWL-3 434059003 9/30/20 17 Cs-134 -8.1 2E-O I 8.54E-O I 2.64E+OO u ws SWL-3 434059003 9/30/20 1 7 Cs-137 -I .03E+OO 8.78E-O I 2.47E+O O u ws SWL-3 434059003 9/30/20 17 Fe-59 -6.74E-02 l.80E+OO 5.94E+O O u ws SWL-3 434059003 9/30/20 1 7 1-13 1 6.84E-O l 3.64E+OO l.23E+O I u w s SWL-3 434059003 9/30/20 1 7 K-40 -l.75 E+O l l.47E+O I 4.02E+O I u ws SWL-3 434059003 9/30/20 1 7 La-1 40 6.24E+OO 3.34E+OO 1.08E+O l u w s SWL-3 434059003 9/30/20 1 7 Mn-54 -5.7 1 E-OI 7.05E-O I 2.20E+OO u ws SWL-3 434059003 9/30/20 17 Nb-95 l.24E-O I l.09E+OO 2.79E+O O u ws SWL-3 434059003 9/30/20 1 7 Ru-1 03 -2.40E+OO 1.1 2E+OO 2.68E+OO u ws SWL-3 434059003 9/30/20 17 R u-1 06 3.27E+OO 6.79E+OO 2.25E+O I u ws SWL-3 434059003 9/30/20 1 7 Sb-1 24 -l.35E+OO 2.57E+OO 6.43E+OO u ws SWL-3 434059003 9/30/20 1 7 Sb-1 25 7.37E-O l 2.1 IE+OO 7.09E+OO u ws SWL-3 434059003 9/30/20 1 7 Se-75 -5.56E-O l 9.57E-O I 3.15E+OO u ws SWL-3 434059003 9/30/20 1 7 T h-228 -7.55E-01 l.99E+OO 5.6 9E+OO u ws SWL-3 434059003 9/30/20 1 7 Z n-65 4.0 8E-OI 1.44E+OO 4.74E+OO u ws SWL-3 434059003 9/3 0/20 1 7 Z r-95 -2.24E+OO l.69E+OO 4.49E+OO u ws SWL-3 434059004 9/30/20 1 7 H-3 7.98E+02 4.1 9E+02 l.23E+03 u ws SWL-2 43699000 1 I 0/31/20 1 7 Ac-228 -1.84E+OO 4.60E+OO 9.69E+OO u ws SWL-2 436990001 I 0/31/20 1 7 Ag-1 08m -4.77E-OI 5.52E-0 1 1.7 1 E+OO u ws SWL-2 43699000 1 1 0/31/20 1 7 Ag-11 0 111 l.70E-0 1 9.98E-0 1 3.37E+OO u ws SWL-2 43699000 1 1 0/3 1/20 1 7 Ba-1 40 3.22E+OO 7.42E+OO 2.44E+O I u ws SWL-2 436990001 I 0/31/20 1 7 Be-7 2.67E+OO 6.74E+OO 2.23E+O I u ws SWL-2 43699000 1 1 0/3 1/20 1 7 Ce-1 4 1 l.5 5 E+OO 2.36E+OO 4.1 2E+O O u ws SWL-2 436990001 1 0/3 1/20 1 7 Ce-1 44 -2.57E-O l 3.55E+OO l.1 3E+O I u ws SWL-2 43699000 1 I 0/3 1/20 1 7 Co-57 -4.07E-O I 4.59E-O I 1.40E+OO u 0-1 61 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 SAMPLE E ND CONC STD.DEV. MDC FLAGS TYPE STATION LSN D ATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) ws SWL-2 43699000 1 1 0/3 1/20 1 7 Co-58 -3.32 E-O l 7.63E-O I 2.50E+OO u ws SWL-2 43699000 1 1 0/3 1/20 1 7 Co-60 -2.09£-0 1 6.26E-O l 1.96E+OO u ws SWL-2 43699000 1 1 0/3 1/20 1 7 C r-5 1 4.28E+OO 7.48E+OO 2.54E+O I u ws SWL-2 436990001 1 0/3 1/20 1 7 Cs-134 -2.08 E-O l 7.24 E-O l 2.4 1 E+OO u ws SWL-2 436990001 1 0/3 1/20 1 7 Cs-1 37 6.68 E-O l 7.45E-O I 2.43E+OO u ws SWL-2 43699000 1 1 0/3 1/20 1 7 Fe-59 -3.74 E-O l 1.85E+OO 6.00E+OO u ws SWL-2 43699000 1 1 0/3 1/20 1 7 1-13 1 -8.73£-0 1 4.03 E+OO l.33E+O l u ws SWL-2 43699000 1 1 0/3 1/20 1 7 K-40 2.30E+O l 1.50E+O l l.99E+O l U! ws SWL-2 43699000 1 I 0/3 1/20 1 7 La-1 40 -8.98 E+OO 3.72E+OO 8.09E+OO u ws SWL-2 436990001 1 0/3 1/20 1 7 Mn-54 -2.27£-0 1 6.70£-0 1 2.2 1 E+OO u ws SWL-2 43699000 1 1 0/31/20 1 7 Nb-95 -9.56 E-O 1 1.45 E+OO 3.09E+OO u ws SWL-2 43699000 1 1 0/3 1/20 1 7 R u-103 -7.28E-O l 9.17£-0 1 2.84E+OO u ws SWL-2 436990001 1 0/3 1/20 1 7 Ru-1 06 5.7 5 E+OO 6.46E+OO 2.1 l E+O l u ws SWL-2 43699000 1 1 0/3 1/20 1 7 S b-1 24 5.33 E-O l l.90 E+OO 6.49E+OO u ws SW L-2 43699000 1 1 0/3 1/20 1 7 S b-1 25 -1.4 1 E-0 I 1.78E+OO 5.84E+OO u ws SWL-2 43699000 1 1 0/3 1/20 1 7 Se-75 4.57 E-O l 8.02 E-O l 2.74E+OO u ws SWL-2 43699000 1 10/3 1/20 1 7 Th-2 28 l.98E+OO 2.09 E+OO 3.43E+OO u ws SWL-2 43699000 1 1 0/3 1/20 17 Z n-65 -3.89 E-O 1 l.5 3E+OO 4.95E+OO u ws SWL-2 43699000 1 10/3 1/20 1 7 Z r-95 l.79 E-0 1 1.54 E+OO 5.24E+OO u ws SWL-3 436990002 10/3 1/20 1 7 Ac-228 -4.76 E+OO 4.83 E+OO 9.79E+OO u ws SWL-3 436990002 1 0/3 1/20 1 7 A g-1 08m -7.74 E-O l 7.29£-0 1 1.89E+OO u ws S WL-3 436990002 10/3 1/2 0 1 7 A g-I I Om -7.25E-0 1 1.0 l E+OO 3.08E+OO u ws SWL-3 436990002 I 0/3 1/20 1 7 Ba-1 40 -3.75E+OO 6.57E+OO 2.1 4E+Ol u ws SWL-3 436990002 1 0/3 1/20 1 7 Be-7 6.28 E+OO 6.69E+OO 2.29E+Ol u ws SWL-3 436990002 10/3 1/20 1 7 Ce-1 4 1 -1.03 E+OO l.59E+OO 4.8 1 E+OO u ws SWL-3 436990002 1 0/31/20 1 7 Ce-1 44 5.78 E+OO 4.39 E+OO 1.36E+O l u ws SW L-3 436990002 1 0/3 1/20 1 7 Co-57 -3.3 1 E-0 1 5.82 E-O l l.79E+OO u ws SWL-3 436990002 1 0/3 1/20 1 7 Co-58 -9.79£-02 8.08£-0 1 2.6 1 E+OO u ws SWL-3 436990002 1 0/3 1/20 1 7 Co-60 -3.36 E-O 1 6.07£-0 1 l.89E+OO u ws SWL-3 436990002 I 0/3 1/20 1 7 Cr-5 1 -1.82E+OO 8.5 1 E+OO 2.76E+Ol u ws SWL-3 436990002 10/3 1/20 1 7 Cs-1 34 3.75E-02 6.86E-O I 2.24E+OO u ws SWL-3 436990002 1 0/3 1/20 1 7 Cs-1 3 7 -1.55 E+OO 7.74 E-O l 2.03E+OO u ws SWL-3 436990002 10/3 1/20 I 7 Fe-59 -2.86E+OO l.83E+OO 5.11 E+OO u ws SWL-3 43699000 2 1 0/3 1/20 1 7 1-131 2.1 4E-O l 4.24E+OO 1.38E+0 1 u ws S WL-3 436990002 1 0/3 1/20 1 7 K-40 -2.26 E+O I 1.32E+O l 3.06E+O l u ws SWL-3 436990002 1 0/3 1/20 1 7 La-1 40 -9.7 1 E-0 1 2.52E+OO 7.83E+OO u ws S WL-3 436990002 1 0/3 1/20 1 7 Mn-54 7.36 E-O I 8.70 E-0 1 2.1 4E+OO u ws SWL-3 436990002 1 0/3 1/20 1 7 Nb-95 -I .29E-O l 7.72 E-O I 2.50E+OO u ws SWL-3 436990002 1 0/3 1/20 1 7 R u-1 03 -2.89£-0 1 I.OOE+OO 2.95E+OO u ws SWL-3 436990002 1 0/3 1/20 1 7 R u-10 6 -1.0lE+O l 6.37E+OO l.82 E+OI u ws SWL-3 436990002 10/3 1/20 1 7 S b-1 24 3.36E-O I 2.06E+OO 6.97E+OO u ws SWL-3 436990002 10/3 1/20 1 7 S b-1 25 -3.45E+OO 1.95 E+OO 5.2 1 E+OO u ws SWL-3 43 699 0002 1 0/3 1/20 1 7 S e-75 9.1 3£-0 1 9.29£-0 1 3.0 8E+OO u ws SWL-3 436990002 1 0/3 1/20 1 7 T h-22 8 9.24E-O I l.77E+OO 4.67E+OO u ws SWL-3 436990002 10/3 1/20 1 7 Z n-65 -2.93 E+OO 1.59 E+OO 4.22 E+OO u ws SWL-3 436990002 10/3 1/20 1 7 Zr-95 -3.4 1 E-O l l.34E+OO 4.32E+OO u ws SWL-2 439 1 8500 1 11/30/20 1 7 Ac-228 3.55E+OO 4.08E+OO 1.39 E+OI u ws SWL-2 439 1 85001 11/30/20 1 7 A g-1 08m 6.7 1 E-O l 9.36E-O l 3.09E+OO u ws SWL-2 439 1 8500 1 11/30/20 1 7 Ag-11 0111 l.98E+OO 1.63E+OO 5.59E+OO u ws SWL-2 43 9 1 8500 1 11/30/20 1 7 Ba-1 40 1.46E+O l 1.20 E+O l 4.1 7 E+OI u D-162 Donald C. Cook N uclear Pla nt Annual Radiolog i cal Environmental Operating Report 2017 SAMPLE EN D CONC STD.DEV. MDC FLAGS TYPE STATION LSN DATE NUCLIDE (pCi/L) (pCi/L) (pCi/L) ws SWL-2 43918500 1 11/30/2017 Be-7 -7.99E+OO l.24E+Ol 4.03E+OI u ws SWL-2 439185001 1 1/30/20 1 7 Ce-1 41 -3.48E+OO 2.80E+OO 7.87E+OO u ws SWL-2 43918500 1 11/30/20 1 7 Ce-144 -7.75E+OO 7.67E+OO 2.23E+Ol u ws SWL-2 43918500 1 11/30/20 1 7 Co-57 -l.2 2E+OO 9.92E-OI 2.82E+OO u ws SWL-2 43918500 1 11/3 0/20 1 7 Co-58 2.45 E+OO l.59E+OO 5.39E+OO u ws SWL-2 439 1 85001 1 1/30/20 1 7 Co-60 -7.93E-01 l.28E+OO 3.85E+OO u ws SWL-2 439 1 8500 1 11/30/20 1 7 C r-51 -1.30 E+OI I .44 E+O l 4.37E+O l u ws SWL-2 43918500 1 11/30/20 1 7 Cs-1 34 5.73E+OO 2.76E+OO 4.45E+OO UI ws SWL-2 4 39 185001 11/30/20 1 7 Cs-1 37 4.23E-Ol l.0 8E+OO 3.68E+OO u ws SWL-2 43918500 1 11/30/20 1 7 Fe-59 -3.4 6E-O I 2.91 E+OO 9.60E+OO u ws SWL-2 4391 850 0 1 11/30/20 1 7 1-131 l.26E-Ol 6.71E+OO 2.17 E+Ol u ws SWL-2 43918500 1 I 1/30/20 1 7 K-40 5.04E+Ol 2.24E+O I 3.20E+O I UI ws SWL-2 43918500 1 11/30/20 1 7 La-140 4.1 4E+OO 4.04E+OO 1.43E+OI u ws SWL-2 43918500 1 11/30/20 1 7 Mn-54 -1.85E-O l l.1 9E+OO 3.80E+OO u ws SWL-2 439 1 8500 1 1 1/30/20 1 7 Nb-95 l.89E+OO l.27E+OO 4.40E+OO u ws SWL-2 43918500 1 11/30/20 1 7 Ru-103 8.06E+OO 2.00E+OO 4.45 E+OO UJ ws SWL-2 43918500 1 1 1/30/20 1 7 Ru-10 6 -3.16 E+OO 9.36E+OO 3.03E+OI u ws SWL-2 439 1 85001 1 1/30/20 1 7 Sb-124 4.26E+OO 3.42E+OO 1.25 E+OI u ws SWL-2 43918500 1 I 1/30/20 1 7 Sb-1 25 -1.00 E+OO 2.84E+OO 8.80E+OO u ws SWL-2 43918500 1 1 1/30/20 1 7 Se-75 I .04E-OI l.5 8E+OO 4.72E+OO u ws SWL-2 439185001 11/30/20 1 7 Th-228 9.48E+OO 2.64E+OO 4.93E+OO ws SWL-2 43918500 1 11/30/20 17 Z n-65 -2.98E+OO 2.75E+OO 7.99E+OO u ws SWL-2 43918500 1 11/30/20 1 7 Z r-95 2.79E+OO 2.56E+OO 8.77E+OO u w s SWL-3 439185002 11/30/20 1 7 Ac-228 2.32E+OO 4.63 E+OO 1.62E+OI u w s SWL-3 439185002 1 1/30/20 1 7 Ag-108m -2.5 6E-Ol l.08 E+OO 3.44E+OO u w s SWL-3 439185002 11/30/20 1 7 Ag-I !Om 4.83E+OO 2.33E+OO 8.26E+OO u w s SWL-3 439 1 85002 11/30/20 1 7 Ba-1 40 2.29E+OI I .68E+Ol 5.73E+Ol u w s SWL-3 439185002 11/30/2 0 1 7 Be-7 3.3 1 E+OO 1.26 E+O l 4.17E+O I u w s SWL-3 439185002 11/30/20 1 7 Ce-1 4 1 -6.95E+OO 3.62E+OO 9.16E+OO u w s SWL-3 439 1 85002 11/30/20 1 7 Ce-144 4.60E+OO 8.0l E+OO 2.59E+Ol u w s SWL-3 439185002 1 1/30/20 1 7 Co-57 -3.77 E-O I 1.0 2E+OO 2.92E+OO u w s SWL-3 439 1 85002 1 1/30/20 1 7 Co-5 8 -l.97E+OO l.42E+OO 3.66E+OO u w s SWL-3 439185002 11/30/20 1 7 Co-6 0 9.05E-OI l.66E+OO 5.69E+OO u w s SWL-3 439 1 85002 1 1/30/20 1 7 C r-51 -8.SOE+OO 1.75E+O I 5.62E+O I u w s SWL-3 439185002 11/30/20 1 7 Cs-13 4 -2.25E+OO l.64E+OO 4.42 E+OO u w s SWL-3 439 1 85002 I 1/30/20 17 Cs-1 37 -9.02E-01 l.55E+OO 4.55E+OO u w s SWL-3 439185002 1 1/30/20 1 7 Fe-59 -l.86E+OO 4.54E+OO 1.42 E+Ol u w s SWL-3 439185002 1 1/30/20 1 7 1-1 31 8.2 1 E+OO 6.94E+OO 2.42E+OI u ws SWL-3 439185002 1 1/30/20 1 7 K-40 4.55E+OI 2.37E+Ol 4.08E+O I UI w s SWL-3 439185002 1 1/30/20 17 La-1 40 -4.77E+OO 5.02E+OO l.38E+O l u w s SWL-3 439185002 11/30/20 1 7 M n-54 9.44E-Ol l.38 E+OO 4.8 7E+OO u w s SWL-3 439185002 1 1/30/20 1 7 Nb-95 -2.22E+OO 2.04E+OO 5.67E+OO u w s SWL-3 43918 5002 1 1/30/20 1 7 Ru-I 03 l.1 2E-01 l.94E+OO 6.32E+OO u w s SWL-3 439185002 11/30/20 17 R u-I 06 6.36E-0 1 l.20 E+OI 3.83E+O I u w s SWL-3 439 1 85002 11/30/20 1 7 Sb-1 24 3.09E+OO 4.1 7E+OO l.52E+OI u w s SWL-3 439 1 850 02 11/30/20 1 7 Sb-1 25 5.39 E-OI 3.1 8E+OO l.06 E+Ol u w s SWL-3 439 1 85002 11/30/20 1 7 Se-75 l.86E-O I I .53 E+OO 5.22E+OO u w s SWL-3 439 1 85002 11/30/20 1 7 Th-228 9.99E-OI 4.02E+OO 8.68E+OO u ws SWL-3 439 1 85002 11/30/20 1 7 Z n-65 6.23E+OO 4.43E+OO l.55E+OI u ws SWL-3 439 1 85002 11/30/20 1 7 Zr-95 3.0 I E+OO 3.1 3E+OO 1.12E+Ol u D-1 6 3 Donald C. Cook Nuclear Pl a nt Annual Radiological Environmental Operat ing Report 2 0 1 7 SAMPLE END CONC STD.D EV. MDC FLAGS TYPE STATION LSN D ATE NUCLIDE (pCi/L) (pC i/L) (pCi/L) ws SWL-2 44097300 1 1 2/3 1/20 1 7 Ac-228 -I.5 I E+OO 3.48E+O O 8.35E+OO u ws SWL-2 44097300 1 1 2/3 1/20 1 7 Ag-1 08m -5.1 2E-02 4.42E-O I 1.47E+OO u ws SWL-2 440973001 1 2/3 1/20 1 7 Ag-I I Om -l.30E-OI 7.04E-O l 2.2 1 E+OO u ws SWL-2 44097300 1 1 2/3 1/20 1 7 Ba-1 40 5.68 E+OO 6.42E+OO 2.1 6E+O I u ws SWL-2 44097300 1 12/3 1/20 1 7 Be-7 l.33E+OO 5.68E+OO I.9 0 E+O I u ws SWL-2 44097300 1 1 2/3 1/20 1 7 Ce-1 41 -3.48E+OO 2.2 1 E+OO 4.52E+OO u ws SWL-2 44097300 1 1 2/3 1/20 1 7 Ce-1 44 -4.90E+OO 3.88E+OO 1.1 5E+O I u ws SWL-2 44097300 1 1 2/3 1/20 1 7 Co-57 I.S I E+OO 8.00E-0 1 l.62E+OO u ws SWL-2 440973001 12/3 1/20 1 7 Co-58 -8.94E-0 1 7.32E-O I 2.09E+OO u ws SWL-2 440973001 1 2/3 1/20 1 7 Co-60 3.04E-0 1 5.1 2E-O I I.75E+OO u ws SWL-2 44097300 1 1 2/3 1/20 1 7 C r-5 1 4.95E+OO 7.58E+OO 2.60E+OI u ws SWL-2 44097300 1 1 2/3 1/20 1 7 Cs-1 34 -l.08E-O I 6.20E-O I I.97E+OO u ws SWL-2 440973001 1 2/3 1/20 1 7 Cs-137 7.27 E-0 1 5.44E-O I l.80E+OO u ws SWL-2 440973001 1 2/3 1/20 1 7 Fe-59 9.29E-02 l.34E+OO 4.0 I E+OO u ws SWL-2 44097300 1 1 2/3 1/20 1 7 1-131 2.31 E+OO 3.76E+OO 1.28E+O I u ws SWL-2 44097300 1 1 2/3 1/20 1 7 K-40 -7.99 E+OO 9.99E+OO 2.96E+O I u ws SWL-2 440973001 1 2/3 1/20 1 7 La-1 40 -4.33E+OO 2.46E+OO 6.II E+OO u ws SWL-2 440973001 1 2/31/20 1 7 M n-54 -2.09E-0 1 5.36E-OI l.58E+OO u ws SWL-2 440973001 1 2/3 1/20 1 7 Nb-95 6.36E-0 1 7.00E-0 1 2.3 0 E+OO u ws SWL-2 44097300 1 1 2/3 1/20 17 R u-1 03 8.80 E-O I 8.05E-O I 2.46E+OO u ws SWL-2 440973001 1 2/3 1/20 1 7 R u-1 06 -2.84E+OO 4.7 6E+OO l.49E+OI u ws SWL-2 44097300 1 1 2/3 1/20 1 7 Sb-1 24 -l.33 E+OO l.6 1 E+OO 4.75E+OO u ws SWL-2 440973001 1 2/3 1/20 1 7 Sb-1 25 -9.SSE-0 1 l.43E+OO 4.59E+OO u ws SWL-2 44097300 1 1 2/3 1/20 1 7 S e-75 -7.75E-O I 7.77E-0 1 2.52E+OO u ws SWL-2 440973001 1 2/31/20 17 T h-228 3.79 E+OO 2.1 3E+OO 4.13E+OO u ws SWL-2 44097300 1 1 2/3 1/20 1 7 Z n-65 5.57E-0 1 1. IO E+OO 3.77E+OO u ws SWL-2 44097300 1 1 2/3 1/20 1 7 Z r-95 l.53E+OO l.1 4E+OO 3.78E+OO u ws SWL-2 440973002 1 2/31/20 1 7 H-3 -2.35 E+02 4.1 5E+02 1.40E+03 u ws SWL-3 440973003 1 2/3 1/20 1 7 Ac-228 4.77E+OO 4.33E+OO 8.1 4E+OO u ws SWL-3 440973003 1 2/3 1/20 1 7 Ag-1 08 m -1.44 E-0 1 3.97E-01 l.32E+OO u ws SWL-3 440973003 1 2/31/20 1 7 Ag-1 l Om -2.1 3E-0 1 6.36E-O I 2.0 I E+OO u ws SWL-3 4409 7 3003 1 2/3 1/20 1 7 Ba-1 40 -3.08 E+OO 5.35E+OO I.73E+OI u ws SWL-3 4409 7 3003 1 2/3 1/20 1 7 Be-7 2.0 I E+OO 4.54E+OO I.5 SE+O I u ws SWL-3 440973003 1 2/31/20 1 7 Ce-1 41 -8.IOE-0 1 l.33E+OO 3.86E+OO u ws SWL-3 440973003 1 2/3 1/20 1 7 Ce-1 44 8.08E+OO 3.66E+OO l.0 8E+Ol u ws SWL-3 440973003 1 2/3 1/20 1 7 Co-57 5.26E-02 4.0 7 E-OI I .33E+OO u ws SWL-3 440973003 1 2/3 1/20 1 7 Co-58 -2.62E-O l 5.73E-OI l.8 1 E+OO u ws SWL-3 440973003 1 2/3 1/20 1 7 Co-60 -6.93 E-0 1 4.82E-OI 1.3 7 E+OO u ws SWL-3 440973003 1 2/3 1/20 1 7 C r-5 1 -8.32E-0 1 6.06E+OO 2.0 8E+OI u ws SWL-3 440973003 1 2/3 1/20 1 7 Cs-1 34 -4.2 1 E-0 1 4.96E-O I I.5 1 E+OO u ws SWL-3 440973003 1 2/3 1/20 1 7 C s-1 37 -5.81E-O I 4.86E-O I 1.45E+OO u ws SWL-3 4409 7 3003 1 2/3 1/20 1 7 Fe-59 -I.89E+OO l.26E+OO 3.30E+OO u ws SWL-3 440973003 1 2/3 1/20 1 7 1-13 1 -8.33E-0 1 3.35E+OO I.13E+OI u ws SWL-3 440973003 1 2/3 1/20 1 7 K-40 l.1 4E+O I 1.09E+O I 1.5 1 E+OI u ws SWL-3 440973003 1 2/3 1/20 1 7 La-1 40 l.07E+OO I.9 1 E+OO 6.56E+OO u ws SWL-3 440973003 1 2/3 1/20 1 7 M n-54 -4.67E-O I 4.8 1 E-O I I.44E+OO u ws SWL-3 440973003 1 2/31/20 17 N b-95 -3.72E-O I 5.68E-O I l.77E+OO u ws SWL-3 440973003 1 2/3 1/20 17 R u-1 03 -6.96E-02 6.30E-0 1 2.1 I E+OO u ws SWL-3 440973003 1 2/3 1/20 17 R u-1 0 6 -I.59E+OO 4.32E+OO J.40E+OI u ws SWL-3 440973003 1 2/31/20 1 7 Sb-1 24 5.89E-OI l.23E+OO 4.22E+OO u D-164 Do n ald C. Cook Nuclear Plant Annu a l Radiological Environmental Operating Report 2017 SAMPLE END CONC STD.DEV. MDC FL AG S TYPE STATION LSN DAT E NUCLIDE (pCi/L) (pCi/L) (pCi/L) ws SWL-3 440973003 12/31/20 1 7 S b-1 25 9.53E-OI 1.27£+00 4.34£+00 u ws SWL-3 440973003 1 2/3 1/20 1 7 Se-75 -5.76£-0 I 7.1 I E-01 2.13£+00 u ws SWL-3 440973003 I 2/3 1/20 1 7 T h-228 7.1 I E-01 1.84£+00 3.70£+00 u ws SWL-3 440973003 1 2/3 1/20 17 Z n-65 -1.42£+00 l.07 E+OO 2.89£+00 u ws SWL-3 44097 3 003 1 2/3 1/20 17 Z r-95 -1.IO E+OO 1.4 1£+00 3.29£+00 u ws SWL-3 440973004 1 2/3 1/20 17 H-3 -1.98£+02 4.1 3£+02 1.39£+03 u U: Ta rget i soto p e was a nal yze d for but not det ected above the MDC and LLD. U l: Uncertain ident i fication for gamma s pectroscop

y. X: Lab-specific qua li fi er (see data su mmar y pa c k age for narr at i ve). M: Report e d re s u l t i s l ess than t h e LLD and greater tha n the MDC. DL: Measured MDC is g reat er t h a n the LLD. D-1 65 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 APPENDIX E Pre-Operational Radiological Monitoring Program E-1 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Donald C. Cook Nuclear Plant Pre-Operational Radiological Monitoring Program Summary This appendix details information obtained during the conduct of a Pre-Operational Radiological Monitoring Program (PRMP) at the Donald C. Cook Nuclear Plant (CNP) from August 1971 until the initial criticality of Unit 1 on January 18 , 1975. Program-related samples were analyzed by the Eberline Instrument Corporation and a summary of these results are presented below. This information was utilized during the evaluation of CNP's 2017 Radiological Environmental Monitoring Program sample data and allowed for the comparison of current and historical information. Air Samples: Gross beta radioactivity in PRMP air particulate filters ranged from 0.01 to 0.17 pCi/m 3 from mid-1971 until mid-1973. In June of 1973 and 1974 , the People's Republic of China detonated several nuclear devices in the atmosphere.

As a result , PRMP gross beta radioact i vity resu lt s up to 0.45 pCi/m 3 were documented with no statistically significant difference noted between indicator and control stations. By the end of the pre-operational period , g r oss beta values were approximately 0.06 pCi/m 3. Analysis of composited PRMP air particulate filters detected " trace amounts" of fission produc t radionuclides Ce-144 , Ru-103, Ru-106 , Zr-95 and Nb-95. The presence of these radionuclides was attributed to atmospheric nuclear tests conducted previously. Be-7 , a cosmogenic nuclide produced through cosmic ray spallation, was also identified during the analysis of these air particulate filters. Direct Radiation: Direct radiation (background) as measured by PRMP thermoluminescent dosimeters ranged between 1.0 and 2.0 millirem per week. Milk Samples: Gamma ray spectroscopy of PRMP milk samples was conducted and naturally-occurring K-40 was detected in the range of 520 to 2310 pCi/liter. Cs-137 was detected in many milk samples following the atmospheric nuclear test discussed above. Cs-137 radioactivity ranged from 8 to 33 pCi/liter.

1-131 was noted in four milk samples collected on 7/9/74 with values ranging from 0.2 to 0.9 pCi/liter. Lake Water Samples: PRMP lake water samples collected were analyzed for tritium and by gamma ray spectroscopy. Tritium activities were below 1000 pCi/liter and typically averaged about 400 pCi/liter.

No radionuclides were detected by gamma ray spectroscopy.

Lake Sediment Samples: PRMP lake sediment samples were analyzed by gamma ray spectroscopy and a natural abundance of Uranium , Thorium daughters and K-40 were detected. Traces of Cs-137 we r e also noted (less than 0.1 pCi/gram) and attributed to fallout. E-2 Do n ald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Fish Samples: PRMP Fish samples collected and analyzed by gamma ray spectroscopy exhibited a natural abundance of K-40. Trace levels of Cs-137 present were attributed to fallout. Dri n king Water Samples: Dri n king water sampling and analysis was not performed as part of CNP's PRMP. E-3 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 APPENDIX F NEI GROUNDWATER PROTECTION INITIATIVE F-1 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 Analysis of the Sample Data The Groundwater Protection Initiative (GPI) Sample Data for 2017 indicates no groundwater contamination in excess of the reporting threshold of 2.00E-05 uCi/mL for tritium. Gamma spectroscopy was performed on all Radiological Environmental Monitoring Program wells quarterly. There were no positively identified radionuclides from plant effluents detected in any of the GPI well samples , and two wells with trace levels of tritium just above detection limits. The LLD value used for tritium counting of the samples varied between 9.42E-07 and 9.98E-07 uCi/mL , depending on which scintillation counter was used. This is well below the required maximum LLD value of 2.00E-06 uCi/mL per the ODCM. While no valid tritium values were found above the maximum required LLD, values found above the LLD are not abnormal , unexpected , or inconsistent with past sampling history. The samples observed above LLD historically were expected results from the release of tritiated water into the Absorption Pond , a licensed pathway and part of plant design , or the result of recapture deposition of tritium from licensed radioactive gaseous release points. The 2017 results were expected considering the reduction in tritium released to the Absorption Pond and typical rainfall experienced.

Wells located inside the Protected Area of the plant are subject to recapture deposition of tritium and may show occasional sample results above LLD values following rainfalls and snow melt. The results observed in 2017 continue to reflect normal expectations and behaviors as they relate to recaptured tritium for the weather conditions observed in 2017. Well MW-28 lies close to the vent stacks in the predominant wind direction , so it is expected to observe recaptured tritium from precipitation periodically. Well W-5 lies just west of the turbine building also in close proximity to the plant vent stacks , and indicated low level tritium a single time during a period of snow melt. Subsequent sampling of W-5 indicated no tritium values above the maximum required LLD. The sample data indicates that no radioactive spills or unidentified leaks have occurred in 20 1 7 impacting groundwater.

The sample results ind i cate proper well placement to ensure the protection of the groundwater and early identification of any abnormal conditions involving groundwater. This is validated by the demonstrated ability to monitor percolation from the Absorption Pond and recaptured tritium in precipitation , with flow direction and behavior acting as described in the plant licensing documents. F-2 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 2017 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detection

= LLD Date 01/18/2017

<LLD* 01/19/2017 04/24/2017 05/05/2017

<LLD 08/07/2017 09/23/2017

<LLD 10/07/2017

<LLD 11/17/2017

<LLD 11/25/2017 MW-22M <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD* <LLD <LLD <LLD <LLD

<LLD <LLD <LLD <LLD

<LLD <LLD (Note: Wells MW-22 through MW-27 are multi-port wells installed in the Fall of 2009 , with three sample points placed at different depths. S= Shallow M= Middle D= Deep.) (Note: A "*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) 2017 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per m i lliliter (uCi/mL) Lower Limit of Detection

= LLD MW-25S through MW-27S continued Date MW-26D MW-26M MW-26S MW-27D 03/30/2017 <LLD <LLD

<LLD <LLD <LLD <LLD <LLD 04/24/2017

<LLD <LLD <LLD <LLD <LLD <LLD 08/07/2017

<LLD <LLD <LLD

<LLD <LLD <LLD 11/25/2017 <LLD <LLD <LLD <LLD

<LLD <LLD* <LLD (No t e: Wells MW-22 through MW-27 are mult i-port wells installed in the Fall of 2009 , with three sample points placed at different depths. S= Shallow M= Middle D= Deep.) (No t e: A"*" symbol follow i ng a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis section.) F-3 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 2017 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limit of Detect i on = LLD Date SG-2 MW-20 EW-18 01/11/2017

<LLD 0 1/19/2017 <LLD 04/04/2017

<LLD <LLD <LLD <LLD <LLD 04/05/2017

-07/11/2017

<LLD 07/13/2017

<LLD <LLD <LLD -07/14/2017 <LLD <LLD 10/02/2017

<LLD -10/03/2017

<LLD 10/05/2017

<LLD 11/26/2017

<LLD ------2017 GPI Sample Data Samples analyzed for tritium. Values noted are in microcuries per milliliter (uCi/mL) Lower Limi t of Detection

= LLD Date 01/03/2017 03/07/2017 04/24/2017 05/19/2017 05/31/2017 06/09/2017 08/08/2017 09/21/2017 11/08/2017 11/21/2017 12/04/2017 OW-1 <LLD <LLD <LLD <LLD <LLD

___ _. <LLD ---<LLD ---<LLD <LLD ---<LLD <LLD <LLD <LLD <LLD <LLD <LLD ----~-<LLD <LLD <LLD <LLD <LLD

<LLD 1.14E-06 1.69E-0 6 9.84E-07 1.07E-06 <LLD* 9.86E-07 <LLD <LLD MW-29 <LLD <LLD <LLD <LLD <LLD On 10/20-22 of 2015 , MW-28 and MW-29 were installed to monitor each unit's Refueling Wa t er Sto r age Tank (RWST) for leaks to the groundwater. (Note: A"*" symbol following a sample result denotes a gamma count was performed. Any gamma results above LLD will be additionally flagged and documented in the analysis sectio n.) F-4 Donald C. Cook Nuclear Plant Annual Radiological Environmental Operating Report 2017 2017 GPI Sample Data Samples analyzed for tritium. Values no t ed are in microcu ri es per m il l i liter (uCi/mL) Lower Limit of Detection

= LLD Da t e W-1 W-2 W-3 W-4 W-5 W-6 01/0 3/2017 <LLD <LLD 01/0 9/2017 <LLD <LLD 01/16/2017

<LLD <LLD 01/19/2017

<LLD 02/0 2/2017 <LLD 03/0 9/2017 --<LLD 04/0 3/2017 <LLD <LLD 04/0 4/2017 04/0 5/2017 <LLD 04/1 7/2017 -<LLD 1.11 E-06 <LLD --05/19/2017

<LLD 06/0 9/2017 <LLD --07/13/2017

<LLD <LLD 07/14/2017

<LLD <LLD -07/19/2017 <LLD <LLD

<LLD 08/0 8/2017 -<LLD -09/13/2017

<LLD 10/0 3/2017 -10/0 5/2017 <LLD <LLD <LLD 10/0 7/2017 <LLD 10/10/2017

<LLD <LLD <LLD 11/21/2017

-<LLD --12/0 4/2017 <LLD Da t e W-9 W-10 W-11 W-12 W-13 W-14 01/0 3/2017 <LLD <LLD 01/16/2017

<LLD <LLD -01/18/2017 <LLD 01/19/2017

<LLD --04/0 3/2017 <LLD <LLD 04/0 4/2017 <LLD <LLD -04/0 5/2017 <LLD <LLD <LLD 07/13/2017

<LLD -07/14/2017

<LLD <LLD <LLD <LLD <LLD 07/1 9/2017 10/0 5/2017 <LLD <LLD

<LLD <LLD <LLD <LLD 10/0 7/2017 <LLD -F-5

ML18137A203: Difference between revisions

Revision as of 23:47, 17 October 2018

Contents

Text

SUMMARY

2.0 INTRODUCTION

SUMMARY

4.4.3 Groundwater

SUMMARY

7.0 REFERENCES

SUMMARY

SUMMARY

2.0 INTRODUCTION

2.1 General

2.5 Descriptions

SUMMARY

SUMMARY

4.3 Results

==

SUMMARY

7.0 REFERENCES

1.1 Acceptable

SUMMARY

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ML18137A203: Difference between revisions

Revision as of 23:47, 17 October 2018

Text

SUMMARY

2.0 INTRODUCTION

SUMMARY

4.4.3 Groundwater

SUMMARY

7.0 REFERENCES

SUMMARY

SUMMARY

2.0 INTRODUCTION

2.1 General

2.5 Descriptions

SUMMARY

SUMMARY

4.3 Results

==

SUMMARY

7.0 REFERENCES

1.1 Acceptable

SUMMARY

Navigation menu

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