ULNRC-06301, Transmittal of 2015 Annual Radiological Environmental Operating Report

Transmittal of 2015 Annual Radiological Environmental Operating Report

ML16120A614
Person / Time
Site:	Callaway
Issue date:	04/29/2016
From:	Geyer J Ameren Missouri, Union Electric Co
To:	Document Control Desk, Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation
References
ULNRC-06301
Download: ML16120A614 (109)

Text

ViAmerefi Catlaway Plant MISSOURI April 29, 2016 ULNRC-0630 1 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 40 CFR 190 Ladies and Gentlemen:

DOCKET NUMBERS 50-483 and 72-1045 CALLAWAY PLANT UNIT 1 UNION ELECTRIC Co.

FACILITY OPERATING LICENSE NPF-30 2015 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT Please find enclosed the 2015 Annual Radiological Environmental Operating Report for Callaway Plant. This report is submitted in accordance with Section 5.6.2 of the Callaway Plant Technical Specifications and Appendix B to the Callaway Plant Operating License.

This letter does not contain new commitments.

If there are any questions, please contact Johann S. Geyer at (314) 225-1589 Sincerely, J ann S. Geyer Director, Radiation Protection TAW Enclosure P.c. Box 620 : Fulton, Jv1 65251 .Aiierenlvlissoiiri.coiii

ULNRC-0630 1 April 29, 2016 Page 2 cc: Mr. Marc L. Dapas Regional Administrator U. S. Nuclear Regulatory Commission Region IV 1600 East Lamar Boulevard Arlington, IX 76011-4511 Director Division of Spent Fuel Management Office of Nuclear Material Safety and Safeguards U. S. Nuclear Regulatory Commission Washington, DC 20555-000 1 Senior Resident Inspector Callaway Resident Office U.S. Nuclear Regulatory Commission

$201 NRC Road Steedman, MO 65077 Mr. L. John Kios Project Manager, Callaway Plant Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Mail Stop O$H4 Washington, DC 20555-273 8

ULNRC-0630 1 April 29, 2016 Page 3 Index and send hardcopy to QA file A160.0761 Hardcopy:

Certrec Corporation 6100 Western Place, Suite 1050 fort Worth, TX 76107 (Certrec receives ALL attachments as long as they are non-safeguards and may be publicly disclosed.)

Electronic distribution for the following can be made via Responses and Reports ULNRC Distribution:

F. M. Diya I. E. Herrmann B. L. Cox R. C. Wink I. B. Elwood Corporate Communications NSRB Secretary Mr. Greg Voss, REP Manager (SEMA)

STARS Regulatory Affairs Mr. John ONeill (Pillsbury Winthrop Shaw Pittman LLP)

Mr. Robert Stout (DNR)

Ms. Leanne Tippett-Mosby (DNR)

AMEREN MISSOURI CALLAWAY ENERGY CENTER FULTON, MISSOURI Docket Numbers 50-483 and 72-1045 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT to THE UNITED STATES NUCLEAR REGULATORY COMMISSION Part I January 1 to December 31, 2015 Prepared by ENVIRONMENTAL, Inc.

Midwest Laboratory and Ameren Missouri Callaway Energy Center Submitted by UNION ELECTRIC CO.

dba Ameren Missouri Project No. 8036

PREFACE This Annual Radiological Environmental Operating Report (AREOR) describes the Ameren Missouri Callaway Energy Center Radiological Environmental Monitoring Program (REMP), and the program results for the calendar year 2015. It is submitted in accordance with section 5.6.2 of the Callaway Energy Center Technical Specifications.

Staff members of the Environmental, Inc., Midwest Laboratory were responsible for the acquisition of data presented in this report. Environmental samples were collected by Ameren Missouri personnel or contractors to Ameren Missouri and shipped to Environmental, Inc. - Midwest Laboratory and Stanford Dosimetry, LLC, for analysis.

The report was prepared by Environmental, Inc., Midwest Laboratory and the Ameren Missouri Callaway Energy Center.

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TABLE OF CONTENTS No. Page PREFACE ..................................................................................................................... ii List of Tables ................................................................................................................. v List of Figures............................................................................................................... vi

1.0 INTRODUCTION

..........................................................................................................1 2.0

SUMMARY

....................................................................................................................2 3.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ..............................3 3.1 Program Design and Data Interpretation .........................................................3 3.2 Program Description ........................................................................................4 3.3 Program Execution ..........................................................................................5 3.4 Laboratory Procedures ....................................................................................6 3.5 Program Modifications .....................................................................................7 3.6 Detection and Reporting Limits ........................................................................7 3.7 Land Use Census ............................................................................................8 3.8 Corrections to Previous AREORs.8 4.0 RESULTS AND DISCUSSION .....................................................................................9 4.1 Atmospheric Nuclear Detonations and Nuclear Accidents ..............................9 4.2 Program Findings .............................................................................................9 5.0 TABLES .....................................................................................................................12

6.0 REFERENCES

CITED ................................................................................................23 APPENDICES A Interlaboratory Comparison Program Results ......................................................... A-1 B Data Reporting Conventions .................................................................................... B-1 C Non-Radiological Monitoring Program ..................................................................... C-1 D Sampling Location Maps.......................................................................................... D-1 iii

TABLE OF CONTENTS (continued)

PART II Page Data Tabulations and Analyses ..................................................................................... i iv

LIST OF TABLES No. Page 5.1 Sampling Locations, Ameren Missouri, Callaway Energy Center ..............................12 5.2 Collection Frequencies and Required Analyses .........................................................16 5.3 Minimum Required Detection Capabilities for REMP Sample Analysis .....................17 5.4 Results of the Land Use Census ................................................................................18 5.5 Missed Collections and Analyses ...............................................................................19 5.6 Radiological Environmental Monitoring Program Summary .......................................20 In addition, the following tables are in the Appendices:

Appendix A A-1 Environmental Resource Associates (substitute program for EPA) ........................ A1-1 A-2 Interlaboratory Comparison Program Results, Thermoluminescent Dosimeters (TLDs) ......................................................................................................... A2-1 A-3 In-house Spiked Samples ........................................................................................ A3-1 A-4 In-house "Blank" Samples ....................................................................................... A4-1 A-5 In-house "Duplicate" Samples ................................................................................. A5-1 A-6 Department of Energy MAPEP comparison results ................................................. A6-1 A-7 Environmental Resource Associates (substitute program for EML) ........................ A7-1 Attachment A: Acceptance criteria for spiked samples ........................................... A-2 Appendix C C-1 Introduction .............................................................................................................. C-1 C-2 Unusual or Important Events ................................................................................... C-1 C-3 EPP Non-compliances ............................................................................................. C-1 C-4 Non-routine Reports................................................................................................. C-1 C-5 Plant Design and Operation Environmental Evaluations ......................................... C-2 v

LIST OF FIGURES No. Page Appendix D D-1 Radiological Environmental Sampling Locations 1, 2, 3 mile radius from site location................................D-2 D-2 Radiological Environmental Sampling Locations 3, 4, 5, 6 mile radius from site location. .............................................................................................................. D-3 D-3 Radiological Environmental Sampling Locations 5, 10, 15 mile radius from site location ...................................................................................................................... D-4 D-4a Groundwater Monitoring Wells, Owner Controlled Area and Vicinity ....................... D-5 D-4b Groundwater Monitoring Wells, Northern Area ......................................................... D-6 D-4c Groundwater Monitoring Wells, Central Area ........................................................... D-7 D-4d Groundwater Monitoring Wells, Alluvial Area ........................................................... D-8 vi

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1.0 INTRODUCTION

This report presents an analysis of the results of the Radiological Environmental Monitoring Program (REMP) conducted during 2015 for the Union Electric Company (dba Ameren Missouri ) Callaway Energy Center.

The objectives of the REMP are to monitor potential critical pathways of radioactive effluent to man and determine the radiological impact on the environment caused by operation of the Callaway Energy Center. The Radiological Environmental Monitoring Program was initiated in April 1982.

The Callaway Energy Center consists of one 3565 MWt pressurized water reactor, which achieved initial criticality on October 2, 1984. The plant is located on a plateau approximately ten miles southeast of the City of Fulton in Callaway County, Missouri and approximately eighty miles west of the St. Louis metropolitan area. The Missouri River flows by the site in an easterly direction approximately five miles south of the site at its closest point.

Tabulation of the individual analyses for the year 2015 is included in Part II of this report.

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2.0

SUMMARY

The Radiological Environmental Monitoring Program, as required by the U.S. Nuclear Regulatory Commission (NRC) Technical Specifications for the Callaway Energy Center is described herein.

Results for the year 2015 are summarized and discussed.

For the year, the Callaway Energy Center was operated in compliance with Offsite Dose Calculation Manual (ODCM) and Radiological Effluent Controls (REC) requirements. Results from the REMP indicate the Callaway Energy Center has had no significant radiological impact on the health and safety of the public or on the environment.

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3.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 3.1 Program Design and Data Interpretation The purpose of the Radiological Environmental Monitoring Program at the Callaway Energy Center is to assess the impact of the plant on its environment. For this purpose, samples are collected from waterborne, airborne, ingestion and terrestrial pathways and analyzed for radioactive content. Ambient gamma radiation levels are monitored by thermoluminescent dosimeters (TLDs).

Sources of environmental radiation can include the following:

(1) Natural background radiation arising from cosmic rays and primordial radionuclides; (2) Fallout from atmospheric nuclear detonations; (3) Releases from nuclear power plants, planned or accidental; and (4) Industrial and medical radioactive waste.

Effects due to operation of the Callaway Energy Center must be distinguished from those due to other sources in interpreting the data,.

The indicator-control concept is a major interpretive aid; where feasible the design of the Callaway Energy Center program has both indicator and control stations. Most types of samples are collected at indicator locations (nearby, downwind, or downstream) and at control locations (distant, upwind, or upstream). A station effect would be indicated if the radiation level at an indicator location was significantly larger than that at the control location. The difference would have to be greater than could be accounted for by typical fluctuations in radiation levels arising from other sources.

The monitoring program includes analyses for iodine-131, a fission product, and tritium, which is produced by cosmic rays, atmospheric nuclear detonations, and also by nuclear power plants.

Most samples are analyzed for gamma-emitting isotopes, with results for the following groups quantified: zirconium-95, cesium-137, and cerium-144. These three gamma-emitting isotopes are selected as radiological impact indicators because of the different characteristic proportions in which they appear in the fission product mix produced by a nuclear reactor and that produced by a nuclear detonation. Each of the three isotopes is produced in roughly equivalent amounts by a reactor: each constitutes about 10% of the total activity of fission products ten days after reactor shutdown. On the other hand, ten days after a nuclear explosion, the contributions of zirconium-95, cerium-144, and cesium-137 to the activity of the resulting debris are in the approximate ratio 4:1:0.03 (Eisenbud,1963).

The other group quantified consists of niobium-95, ruthenium-103 and -106, cesium-134, barium-lanthanum-140, and cerium-141. These isotopes are released in small quantities by nuclear power plants, but to date their major source of injection into the general environment has been atmospheric nuclear testing. Nuclides of the next group, manganese-54, cobalt-58 and-60, and zinc-65, are activation products and arise from activation of corrosion products. They are typical components of nuclear power plant effluents, but are not produced in significant quantities by nuclear detonation.

Nuclides of the final group, beryllium-7, which is of cosmogenic origin, and potassium-40, a naturally-occurring isotope, were chosen as analytical monitors and should not be considered radiological impact indicators.

Other means of distinguishing sources of environmental radiation can be employed in interpreting the data. Current radiation levels can be compared with previous levels, including pre-operational data. Results of the monitoring program can be related to those obtained in other parts of the world. Finally, results can be related to events known to cause elevated levels of radiation in the environment, e.g., a nuclear accident.

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3.2 Program Description The sampling and analysis schedules for the environmental radiological monitoring program at the Callaway Energy Center are summarized in Tables 5.1 and 5.2 and briefly reviewed below.

Table 5.1 identifies sampling locations and specifies as to type (indicator or control) and its distance, and direction relative to the reactor site. The types of samples collected at each location, required analyses and the frequency of collections are presented in Table 5.2.

To monitor the air environment, airborne particulate and airborne iodine samples are collected by continuous pumping, at five locations. The airborne particulates are collected on glass fiber filters and the airborne iodine through an activated charcoal cartridge. Both filters and cartridges are exchanged weekly. Airborne particulates are analyzed for gamma-emitting isotopes. Charcoal cartridges are analyzed for iodine-131.

The ingestion pathway is monitored by sampling of milk (if available), fish and green leafy vegetation.

Milk samples are collected semimonthly when animals are on pasture and monthly the rest of the year. There were no milk indicator stations identified by the Land Use Census for the subject year. The control station continued to be collected. Samples are analyzed for iodine-131 and gamma-emitting isotopes.

Monthly during the growing season, edible green leafy vegetation is collected from both indicator and control locations. Vegetation samples typically consist of mustard greens, turnip greens, cabbage, lettuce, collards, radish greens, Swiss chard, broccoli and poke. Other edible broad leaf vegetation is collected if primary varieties are not available. The samples are analyzed for iodine-131 and other gamma-emitting isotopes.

Feed crops (soybeans, sorghum, corn) are collected from locations FC-1 through FC-4. FC-1, FC-2 and FC-3 are located on Ameren property traversed by the discharge pipeline. The samples are collected at harvest and analyzed for tritium and gamma emitting isotopes. FC-4 is a control location, beyond the influence of plant operations. Feed crops are grown for animal feed and not for human consumption. The soybean field for sample FC-1 is planted by the Missouri State Department of Conservation (MODOC) to provide feed to wildlife living in the Reform Wildlife Conservation Area. MODOC did not plant the field this year and there was no crop to sample.

The waterborne pathway is monitored by sampling surface water, groundwater and drinking water, and bottom and shoreline sediments. Water samples are analyzed for tritium and gamma-emitting isotopes, and sediments are analyzed for gamma-emitting isotopes.

The waterborne pathway is also monitored by upstream and downstream semiannual collections of fish. The five most abundant recreational or commercial fish species are collected. Samples are analyzed for gamma-emitting isotopes.

Monthly composite samples of surface water from the Missouri River are collected from one indicator location (S02) and from one control location (S01). The surface water samples are composites of daily collections by automatic river samplers.

Onsite surface water from ten ponds is analyzed for tritium and gamma-emitting isotopes. The collection frequencies are either semiannually or quarterly.

To monitor possible sources of ground water contamination due to plant operations, non-potable ground water was collected monthly or quarterly from well locations both onsite and along the discharge pipeline. The samples were analyzed for tritium and gamma-emitting isotopes.

Potable well water samples are collected quarterly from the plant drinking water supply, neighboring property owners, and from the town of Portland, MO. The samples were analyzed for tritium and gamma-emitting isotopes.

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River bottom sediment is collected semiannually at the plant's intake (A) and discharge (C). The samples are taken from water at least 2 meters deep to prevent influence of bank erosion.

Shoreline sediments are collected semiannually in the same area as bottom sediment. These samples are collected within two feet of the edge of the water. The samples are analyzed for gamma-emitting isotopes.

The direct ambient gamma radiation pathway is also considered. This exposure is monitored by thermoluminescent dosimeters (TLDs) at forty-eight locations in and around the Callaway site.

The TLDs are placed in 16 sectors around the plant as specified in the ODCM-RECS. Five of the TLD stations have neutron monitoring capability and three locations are designated as controls.

TLDs are exchanged and analyzed quarterly.

Soil is collected annually from seven indicator locations (F2, PR3, F6, PR7, W2, W3, and W4) and two control locations (M9, W1) to monitor the terrestrial environment. The samples are analyzed for gamma-emitting isotopes.

3.3 Program Execution The program was executed as described in the preceding section with the following exceptions.

(1) Surface Water:

The sampler at S01 was out of service 32 days (9%); the sampler at S02 was out-of service 22 days (6%).

(2) Ground Water:

No groundwater samples were available from location 937D for the 1/14/15 scheduled collection due to ice making the well inaccessible (CAR 201500361). No groundwater was available from location 937B for the 11/12/15 or 12/13/15 scheduled collection due to construction in the area (CAR 201508200). No groundwater samples were available from monitoring well U1MW-028 for the first, second or third quarters of 2015 because the well was dry (CAR 201505641). Location U1MW-028 was subsequently deleted from the REMP program because it is dry most of the time.

(3) Drinking Water:

No drinking water sample was available at location DWA-08 for the 7/29/15 scheduled collection. The provider was on vacation. Also, no drinking water was available at location DWA-05 10/26/15. The property was sold and the new owner hasnt been identified in order to arrange for future sampling (CAR 201507721).

(4) Broadleaf Vegetation:

Edible broadleaf vegetation, collected at the five area gardens was available for harvest from June through October, 2015 with the following exceptions: Location V-17 started producing in May but was finished by September. Location V-9 was unavailable in June due to flooding of the garden (CAR 201504200). Location V-9 last produced in September. Locations V-12 and V-16 didnt start producing until June and V-11 and V-16 both stopped producing in September. Missing samples during the periods when the gardens were producing are listed in Table 5.5.

The growing season is defined as April 1 through November 1 (ref: Hammer, Gregory R.). A vegetation sample unavailable after October 31 is not considered a missed sample.

(5) Shoreline and Bottom Sediment:

The shoreline and bottom sediment indicator samples are required to be taken downstream 5

of the plant discharge. The sampling personnel were recently observed attempting to sample at a location approximately 150' upstream of the plant discharge. The plant discharge line was relocated approximately 400' downstream of the previous location in 2007 to eliminate recycling of plant effluents into the plant intake and in preparation for installation of the replacement discharge pipeline. The sampling personnel were not aware the discharge line had been relocated and stated they had always taken the samples at the same location. Due to ineffective change management, the new location was not communicated to the personnel overseeing the sampling, therefore it is likely, but not certain, that the shoreline and bottom sediment indicator samples continued to be collected at the previous location, approximately 150' upstream of the plant discharge for the years 2007- 2015. This is described in plant corrective action document CAR 201603408. The 2015 samples are listed as missed samples in Table 5.5.

(6) Fish:

The fish indicator samples were also taken in the same location as the sediment samples as described in section 3.3(5) above. The integrity of the fish samples was not compromised, however. The Missouri River in the vicinity of the referenced plant infrastructure has been highly modified and anthropomorphically altered in order to more efficiently support the operation of the river as a commercial navigation corridor. These modifications resulted in the narrowing and incision of the Missouri River, eliminating many micro-habitat features that would otherwise be present for habitat utilization by the targeted fish species. In order to reduce channel maintenance costs while providing some measure of habitat heterogeneity, the US Army Corps of Engineers (USACE) subsequently installed a series of river training structures (wing-dikes, longitudinal rock weirs, etc.). The Callaway intake/discharge is situated immediately downstream of a cross-over of the primary downstream river discharge, which is evidenced by the alternating location of the training structures in the intake/discharge vicinity. Immediately upstream of the intake/outfall the training structures occur along the south-descending bank (opposite the intake/discharge), while the training structures immediately downstream of the intake/outfall are located along the north-descending bank. As these training structures create flow dynamics that provided resting space, foraging habitat and cover for many of the targeted species, fish will aggregate along the training structures as refugia and migrate between them. As the primary downstream river discharge crosses-over just upstream of the intake structure the fish will utilize back-waters and eddies of the upstream most portion of these training structures as resting locations prior to making a burst-swim across the channel to the downstream- most portion of the training structures along the bank opposite the intake/outfall. As has historically been observed by the Callaway plant staff and operators, the intake structure given its configuration and proximity to the upstream- most portion of the adjacent training structures, creates a backwater/eddy environment which would also serve to aggregate fish working their way from below the discharge to above the intake and are preparing to make the burst-swim across the channel. Contextually, a sampling location difference of <150 lineal feet would have minimal consequence in this scenario as the sampling location in such an area is an artificial constraint in both the temporal and spatial context in the order of a few hours to a few feet, while the eco-toxicological context controlling the bio-accumulation of radionuclides in the fish is governed by months of occupancy of over 2 miles of downstream habitat, while the fish are constantly moving in and out of this space. Thus the integrity of the fish samples was not compromised and the fish samples are not listed as missing samples.

3.4 Laboratory Procedures The iodine-131 analyses in milk were made using a sensitive radiochemical procedure involving separation of the iodine by ion-exchange, solvent extraction and subsequent beta counting.

Gamma-spectroscopic analyses were performed with HPGe detectors. Levels of iodine-131 in vegetation and concentrations of airborne iodine-131 in charcoal samples were also determined by gamma spectroscopy.

Tritium was measured by liquid scintillation.

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Analytical Procedures used by Environmental, Inc. are on file at the laboratory and are available for inspection. Procedures are based on those prescribed by the Health and Safety Laboratory of the U.S. Dep't of Energy, Edition 28, 1997, U.S. Environmental Protection Agency for Measurement of Radioactivity in Drinking Water, 1980, and the U.S. Environmental Protection Agency, EERF, Radiochemical Procedures Manual, 1984.

Environmental, Inc., Midwest Laboratory has a comprehensive quality control/quality assurance program designed to assure the reliability of data obtained. Details of the QA Program are presented elsewhere (Environmental, Inc., Midwest Laboratory, 2012). The QA Program includes participation in Interlaboratory Comparison (crosscheck) Programs. Results obtained through Quality control samples and crosscheck program results are presented in Appendix A.

Environmental TLDs are processed by Stanford Dosimetry, LLC.

3.5 Program Modifications The monitoring wells in the program were adjusted as described below based on the hydrogeological model developed in the 2014 Limited /site Investigation (LSI) and the frequency of drinking water sample collection was changed back to the pre- LSI frequency based on recommendations of the hydrogeological consultants. (CAR 201504965)

Wells samples were deleted from the program at the following locations: CA-WWA-937A, CA-WWA-937C, CA-WWA-937E, CA-WWA-937F, CA-WWA-938, CA-WWA-OW-4, CA-WWA-OW-5, CA-WWA-U1MW-017, CA-WWA-U1-MW021, CA-WWA-U1MW-022, CA-WWA-U1MW-023, CA-WWA-U1MW-024, CA-WWA-U1MW-025, CA-WWA-U1MW-026, CA-WWA-U1MW-027, CA-WWA-U1MW-028, CA-WWA-U1MW-029, CA-WWA-U1MW-030, CA-WWA-U2MW-9, CA-WWA-U2-12.

Well samples were added at the following locations:

CA-WWA-U1-036, CA-WWA-U1MW-039, CA-WWA-U1MW-047, CA-WWA-U1MW-058, CA-WWA-U1-059, inside old BDL and ISFSI sump. The collection frequency for the well sample at location CA-WWA-U1MW-031 was changed from monthly to quarterly collection.

The frequency of drinking water sample collections was changed from monthly back to quarterly.

The frequency had been changed previously from quarterly to monthly in response to the LSI (Limited Site Investigation) performed in 2014.

The surface water sample at location CA-SWA-UHS was deleted from the program after the 7/25/15 collection.

The drinking water sample at location CA-DWA-05 was deleted from the program after the participating resident sold the property. (CAR201507721)

Four neutron sensitive TLD stations were added to monitor for possible neutron dose from the Independent Spent Fuel Storage Installation. The first fuel loading campaign was conducted in August - October, 2015.

3.6 Detection and Reporting Limits Table 5.3 gives the minimum required detection limits for radiological environmental sample analysis. For each sample type, the table lists the detection level for each isotope. The lower limit of detection (LLD) used in this report is described in NRC Regulatory Guide 4.1 Rev. 1, "Program for Monitoring Radioactivity in the Environs of Nuclear Power Plants" and the NRC Radiological Assessment Branch Technical Position, Rev. 1, November 1979, "An Acceptable Radiological Environmental Monitoring Program".

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3.7 Land Use Census The Land Use Census is performed annually during the growing season. In 2015, the survey was conducted within a five mile canvassing radius of the Callaway Energy Center. The location of the nearest resident, nearest milk animal, and nearest garden of greater than 50 square meters producing broadleaf vegetation was identified by aerial photography and by contacting residents by phone, mail and/or in field surveys for each of the sixteen meteorological sectors using the midpoint of the two units. Residences in the vicinity of the plant were surveyed in person and by telephone.

The Land Use Census was conducted in July- September, 2015. The results of the census are presented in Table 5.4. The table includes radial direction and distance from the Callaway Energy Center for each location, determined by a Global Positioning System (GPS) receiver.

No new well water sources were identified along the Callaway Plant pipeline corridor. No irrigation uses of the Missouri River were identified during the survey. The Missouri Department of Natural Resources confirmed that no new drinking water intakes have been located along the Missouri River within ten (10) river miles downstream from the plant.

3.8 Corrections to Previous AREORs The shoreline and bottom sediment indicator samples are required to be taken downstream of the plant discharge. The sampling personnel were recently observed attempting to sample at a location approximately 150' upstream of the plant discharge. The plant discharge line was relocated approximately 400' downstream of the previous location in 2007 to eliminate recycling of plant effluents into the plant intake and in preparation for installation of the replacement discharge pipeline.

The sampling personnel were not aware the discharge line had been relocated and stated they had always taken the samples at the same location. Due to ineffective change management, the new location was not communicated to the Ameren personnel overseeing the sampling, therefore it is likely, but not certain, that the shoreline and bottom sediment indicator samples continued to be collected at the previous location, approximately 150' upstream of the plant discharge for the years 2007- 2015. Those samples should be considered as missed samples. This is described in plant corrective action document CAR 201603408.

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4.0 RESULTS AND DISCUSSION All collections and analyses were made as scheduled, except for the listing in Table 5.5.

Results are summarized in Table 5.6 as recommended by the Nuclear Regulatory Commission. For each type of analysis and sample medium, the table lists the mean and range of all indicator and control locations, as well as that location with the highest mean and range.

The tabulated results of all measurements are not included in this section, although references to these results will be made in the discussion. A complete tabulation of results for 2015 is contained in Part II of the Annual Report on the Radiological Environmental Monitoring Program for the Callaway Energy Center.

4.1 Atmospheric Nuclear Detonations and Nuclear Accidents The Fukushima Daiichi nuclear accident occurred March 11, 2011. There were no reported accidents involving significant release to the environment at nuclear reactor facilities in 2015. The last reported atmospheric test was conducted on October 16, 1980 by the Peoples Republic of China. There were no reported atmospheric nuclear tests in 2015.

4.2 Program Findings Airborne Particulates and Iodine Gamma spectroscopic analysis of the air particulate filters yielded similar results for all locations.

In 34 of the 260 samples tested, Beryllium-7 was detected with an average activity of 0.24 pCi/m3. Beryllium-7 is produced continuously in the upper atmosphere by cosmic radiation. No gamma emitting isotopes of plant origin were identified.

There was no I-131 activity detected in any of the charcoal canister samples.

Direct Radiation (TLDs)

Forty-three gamma sensitive TLDs were placed in 16 sectors around the Callaway site.

Measurements from forty indicator locations averaged 15.3 mrem/quarter and the three control locations averaged 14.7 mrem/quarter. Readings ranged from 10.5 to 17.8 mrem /quarter, with the highest from the indicator location CA-IDM-27, averaging 17.0 mrem/quarter. The differences are statistically insignificant. The TLD readings were consistent with previously accumulated data and no effect from plant operation was identified.

Four neutron sensitive TLDs were placed in locations at the Site Boundary closest to the Independent Spent Fuel Storage Facility Installation (ISFSI) and at a control location approximately 14 miles from the site. There was no measureable neutron dose there was no effect from the ISFSI.

Milk There are no milk indicator stations. No Iodine-131 was detected in samples from the control station. No gamma-emitting isotopes, excepting naturally occurring potassium-40, were detected in milk. Milk data for 2015 show no radiological effects of plant operation.

Broadleaf Vegetation There was no I-131 activity detected in broadleaf vegetation samples. No gamma-emitting isotopes were detected in broadleaf vegetation samples excepting naturally occurring potassium-9

40. Vegetation data for 2015 show no radiological effects of plant operation.

Non-Food Crops Soybean samples were analyzed for tritium and gamma-emitting isotopes. No tritium activity was detected. No gamma-emitting isotopes, excepting naturally occurring potassium-40, were detected in non-food crops.

Fish Edible portions of fish were analyzed by gamma spectroscopy. No gamma-emitting isotopes, excepting naturally occurring potassium-40, were detected in fish.

Soil Cesium-137 activity was detected in ten of the fourteen indicator samples at an average concentration of 292 pCi/kg dry. The cesium-137 activity is consistent with levels observed from 1999 through 2014; these levels are attributable to the deposition of fallout from previous decades.

Surface Water Low level tritium was detected in four of the twelve samples collected at the downstream location S02 at an average concentration of 239 pCi/L. There was no tritium detected in the remaining eight samples from S02. No gamma-emitting isotopes were detected.

Surface Water, Ponds Tritium activity was detected in one sample from the UHS pond. This is believed to be historical tritium due to river water recycle of tritium in liquid effluents prior to 2007. No tritium activity was detected in the remaining pond samples. No gamma-emitting isotopes were detected in the pond samples.

Drinking Water Wells (potable water)

Samples from fourteen locations were analyzed for tritium and gamma-emitting isotopes. No tritium or gamma-emitting isotopes were detected.

Wells and Ponds (non-potable water)

Groundwater samples from deep wells F-05 and F-15 were analyzed for tritium and gamma-emitting isotopes. There were no tritium or gamma emitting isotopes detected.

Wells MW-31, MW-34, MW-36, MW-39, MW-47, MW-58, and MW-59 were installed during the 2014 LSI (the 2014 LSI is described in detail in the Callaway Energy Center 2014 Annual Radioactive Effluents Release Report). These wells continue to monitor the natural attenuation of tritium which decreased significantly during 2015. Tritium activity was detected in 34 of 44 samples from these wells. The highest concentration was measured in MW-36 which peaked at 13,295 pCi/L in January. By years end, the concentration in MW-36 had fallen to 1,614 pCi/L. The average concentration among positive results for these wells was 4,371pCi/L. The contamination is being remediated by monitored natural attenuation. There are no active leaks.

Wells OW-4, OW-5, GWS, 936, 937A to 937F, 938, 939R, 940 and 941 are located in the Plant Protected Area, adjacent to the power block. Low level tritium in wells OW-4 and OW-5 is believed to be historical tritium due to river water recycle of tritium in liquid effluents prior to 2007.

Tritium activity in the remainder of these wells is believed to be the result of washout from gaseous effluents. The low level tritium activity observed in wells MW-014, MW-018 and MW-019 is due to residual low level contamination from moisture carryover during normal operation of air 10

release valves (ARVs) in manholes 5 and 6B on the now-retired discharge pipeline. The pipeline was replaced in 2008 and there has been no new contamination of this area since then. The existing contamination is being remediated by monitored natural attenuation. There are no active leaks.

Sediments Samples of shoreline and bottom sediments were analyzed for gamma-emitting isotopes.

Cesium-137 was detected in one of the two bottom sediment indicator samples at a concentration of 76 pCi/kg dry weight, but measured below detection limits at both of the samples from the control location. Cesium-137 was also detected in one of the two shoreline sediment indicator samples at a measured concentration of 90 pCi/kg dry weight. These results are consistent with results from previous years. There were no other gamma-emitting isotopes excepting naturally occurring potassium-40 in any of the sediment samples.

11

5.0 TABLES 12

Table 5.1. Sampling Locations. (TLDs)

Location Distance / Sample Code Direction 1 Description Types 2 1a 11 mi. NW City of Fulton on Hwy Z, 0.65 mi. E of Bus. 54, W of Campus Apartments. IDM 3 1.2 mi. NW 0.1 mi. West of Hwy CC on Gravel Rd., 0.8 mi. South Hwy O, Pole No. 18559. IDM 5 1.3 mi. ENE Primary Meteorological Tower. IDM 6 2.0 mi. W Cty Rd. 428, 1.2 mi. West of Hwy CC, Utility Pole No. 18609. IDM 7 1.4 mi. S Cty Rd. 459, 2.6 mi. North of Hwy 94, Utility Pole No. 35097. IDM 9 3.8 mi. S NW Side of the Cty Rd. 459 and Hwy 94 Junction, Utility Pole No. 06754. IDM 10 3.9 mi. SSE Hwy 94, 1.8 mi. East of Cty Rd. 459, Utility Pole No. 12182. IDM 11a 4.7 mi. SE City of Portland, Utility Pole No. 12110. IDM 14 4.9 mi. ESE SE Side of Intersection D and 94, Utility Pole No. 11940. IDM 17 3.8 mi. E Cty Rd. 4053, 0.3 mi. E of Hwy 94, Kingdom Telephone Co., Pole No. 3X12. IDM 18a 3.7 mi. ENE East side of Hwy D, 0.5 mi. South of O, Utility Pole No. 38579. IDM 20 4.7 mi. NE City of Readsville, Utility Pole No. 12830. IDM 21 3.8 mi. NNE Cty Rd. 155, 1.9 mi. North of Hwy O, Utility Pole No. 19100. IDM 22a 1.9 mi. NNE North side of Hwy O, 100 feet East of Cty Rd. 150, Utility Pole No. 31094. IDM 23 6.6 mi. NNE City of Yucatan, Utility Pole No. 12670. IDM 26 3 12 mi. E Town of Americus, Utility Pole No. 11159. IDM 27 3 9.3 mi. ESE Town of Bluffton, Utility Pole No. 11496. IDM 30a 4.4 mi. SSW City of Steedman, Utility Pole No. 06557. IDM City of Mokane, Hwy C and Cty Rd. 400, 0.9 mi. N. of Hwy 94, Utility 31a 7.8 mi. SW Pole.52071 IDM 32 5.4 mi. WSW Hwy VV, 0.6 mi.West of Cty Rd. 447, Utility Pole No. 27031. IDM 32a 5.0 mi. WSW Cty Rd. 447, Utility Pole No. 06357. IDM 33 7.4 mi. W City of Hams Prairie, SE of Hwy C and AD Junction. IDM 34 9.5 mi. WNW NE Side of Hwy C and Cty Rd. 408 Junction. IDM 35 5.8 mi. NNW City of Toledo, Utility Pole No. 17684. IDM 36 4.9 mi. N Cty Rd. 155, 0.8 mi. South of Cty Rd. 132, Utility Pole No. 19137 IDM 37 0.5 mi. SSW Cty Rd. 459, 0.9 mi. South of Hwy CC, Utility Pole No. 35077. IDM 38 4.6 mi. NNW Cty Rd. 133, 1.5 mi. South of Hwy UU, Utility Pole No. 34708. IDM 39 5.4 mi. NW Cty Rd. 111, Utility Pole No. 17516. IDM 39a 5.0 mi. NW Cty Rd. 111, Utility Pole No. 17526. IDM 40 4.2 mi. WNW NE Side of Cty Rd. 112 and Hwy O, Utility Pole No. 18145. IDM 41 4.9 mi. W Hwy AD, 2.8 mi. East of Hwy C, Utility Pole No. 18239. IDM 42 4.4 mi. SW Cty Rd. 447, 2.6 mi. North of Cty Rd. 463, Utility Pole No. 06326. IDM 43 0.5 mi. SW Cty Rd. 459, 0.7 mi. South of Hwy CC, Utility Pole No. 35073. IDM 44 1.7 mi. WSW Hwy CC, 1.0 mi. South of Cty Rd. 459, Utility Pole No. 1877. IDM 45 1.0 mi. WNW Cty Rd. 428, 0.1 mi. West of Hwy CC, Utility Pole No. 18580. IDM 46 1.5 mi. NNW NE Side of Hwy CC and Cty Rd. 466 Intersection, Utility Pole No. 28242. IDM 47 1.0 mi. N Cty Rd. 448, 0.9 mi. South of Hwy O, Utility Pole No. 28151. IDM 48 0.4 mi. NE Cty Rd. 448, 1.5 mi. South of Hwy O, Plant Security Sign Post. IDM 49 1.6 mi. E Cty Rd. 448, Utility Pole No. 06959, Reform Wildlife Mgmt. Parking Area. IDM 50 0.9 mi. SSE Cty Rd. 459, 3.3 mi. North of Hwy 94, Utility Pole No. 35086 IDM 51a 0.3 mi. SE Owner Control Fence, SE of the Water Treatment Plant. IDM 52 0.4 mi. ESE Light Pole Near the East Plant Security Fence. IDM 60 3 14 mi. SW Utility Pole No. 43744, just past Tebbetts City sign. IDM Table 5.1. Sampling Locations. (TLDs, continued) 13

Location Distance / Sample Description Code Direction 1 Types 2 60N 3 14 mi. SW Utility Pole No. 43744, just past Tebbetts City sign; co- located with IDM-60. IDM 61N 1.9 mi NNW Co- located with air monitoring station A1; Corner of CC and O. IDM 62N 1.2 mi. NW Co-located with location 3 IDM 63N 1.9 mi. NNE Co-located with location 22a IDM 64N 1.0 mi. WNW Co-located with location 45 IDM Table 5.1. Sampling Locations (Airborne Radioiodine and Particulate samples, Surface Ponds, Potable Water)

A1 1.3 mi. ENE Primary Meteorological Tower. APT, AIO A7 9.5 mi. NW C. Bartley Farm, Fulton, MO. APT, AIO A8 0.9 mi. NNE Cty Rd. 448, 0.9 miles South of Hwy 0. APT, AIO A9 1.9 mi. NNW Community of Reform. APT, AIO B3 1.8 mi. NNW 0.3 mi. East of the O and CC Junction, Utility Pole No. 50422. APT, AIO 3 2.9 mi. SSE Potable water, County Road 448 DWA 4 2.6 mi. SSE Potable water, County Road 448 DWA 5 2.5 mi. SSE Potable water, County Road 448 DWA 6 2.2 mi. SE Potable water, County Road 448 DWA 7 2.1 mi. ESE Potable water, County Road 448 DWA 8 3.4 mi. SSW Potable water, County Road 457 DWA 9 2.9 mi. SSW Potable water, County Road 457 DWA 10 2.7 mi. SSW Potable water, County Road 457 DWA 12 3.6 mi. SSE Potable water, County Road 464 DWA 21 4.8 mi. ESE Potable water, County Road 469 DWA 22 2.4 mi. SE Potable water, State Road 94 DWA V16 1.6 mi. WSW Wallendorf Farm, Steedman, MO DWA D01 5.0 mi. SE Potable water, Riverside Bar and Grill (Portland, MO). DWA PW1 Onsite Potable water, Unit 1 Construction well #3 DWA Pond 01 0.6 mi. W Fishing Pond SWA Pond 02 0.7 mi. SW Fishing Pond SWA Outfall 010 0.6 mi. NE Stormwater Run-Off Pond SWA Outfall 011 1.0 mi. ENE Stormwater Run-Off Pond SWA Outfall 012 0.5 mi. S Stormwater Run-Off Pond SWA Outfall 013 0.5 mi. S Stormwater Run-Off Pond SWA Outfall 014 0.6 mi. NNW Stormwater Run-Off Pond SWA Outfall 015 0.7 mi. N Stormwater Run-Off Pond SWA Sludge Lagoon, 0.8 mi. SSE

1. 4 On service Sewage Sludge Lagoon SWA UHS pond Inside OCA UHS pond S01 3 4.8 mi. SSE 555 feet Upstream of Discharge North Bank SWA S02 4.9 mi. SE 1.1 River Miles Downstream of Discharge North Bank SWA 14

Table 5.1. Sampling Locations, Non-potable Groundwater Wells Location Distance / Sample Description Code Direction 1 Types 2 936 Inside OCA Diesel Fuel Remediation Well, NW of SFSB WWA 937A Inside OCA Monitoring Well, North of the Powerblock area WWA 937B Inside OCA Monitoring Well, West of the Turbine Bldg. WWA 937C Inside OCA Monitoring Well, West of Radwaste Bldg Drum Storage. WWA 937D Inside OCA Monitoring Well, North of Discharge Monitor Tanks. WWA 937E Inside OCA Monitoring Well, East of Auxilliary Bldg. WWA 937F Inside OCA Monitoring Well, West of the Turbine Bldg. WWA 939R Inside OCA Monitoring Well, East of the Fuel Bldg. WWA 940 Inside OCA Monitoring Well, West of the Radwaste Bldg. WWA 941 Inside OCA Monitoring Well, West of the Radwaste Bldg. WWA GWS Inside OCA Ground Water Sump, West of Reactor Bldg and SFSB WWA ISFSI Inside OCA ISFSI Sump WWA OW-4 Inside OCA UHS Pond Berm WWA OW-5 Inside OCA UHS Pond Berm WWA U1MW-001 0.3 mi. NNW Outside OCA , Groundwater Monitoring Well WWA U1MW-002 0.4 mi. SSW Outside OCA , Groundwater Monitoring Well WWA U1MW-004 3.7 mi. SSE Dillon, Groundwater Monitoring Well WWA U1MW-005 3.8 mi. SSE Brownlee / Hudson, Groundwater Monitoring Well WWA U1MW-006 3.0 mi. S Ward, Groundwater Monitoring Well WWA U1MW-010 3.1 mi. S Pipeline, Groundwater Monitoring Well WWA U1MW-012 3.0 mi. S Ward, Groundwater Monitoring Well WWA U1MW-013 0.8 mi. SSE Pipeline Corridor WWA U1MW-014 3.7 mi. S Pipeline Corridor WWA U1MW-015 3.9 mi. SSE Pipeline Corridor WWA U1MW-016 4.5 mi. SSE Pipeline Corridor WWA U1MW-017 3.8 mi S Pipeline Corridor WWA U1MW-018 3.8 mi. S Pipeline Corridor WWA U1MW-019 3.7 mi. S Pipeline Corridor WWA U1MW-020 3.9 mi. SSE Pipeline Corridor WWA U1MW-021 3.7 mi. S Down gradient of Pipeline Corridor WWA U1MW-022 3.8 mi. S Down gradient of Pipeline Corridor WWA U1MW-023 3.8 mi. S Down gradient of Pipeline Corridor WWA U1MW-024 3.8 mi. S Down gradient of Pipeline Corridor WWA U1MW-025 3.9 mi. S Down gradient of Pipeline Corridor WWA U1MW-026 3.9 mi. S Down gradient of Pipeline Corridor WWA U1MW-027 1.5 mi. S Pipeline Corridor, downgrade of discharge vacuum breaker WWA U1MW-028 3.2 mi. S Pipeline Corridor, downgrade of MH-9B WWA U1MW-029 0.2 mi. E Down gradient of DMTdischarge piping WWA U1MW-030 0.2 mi. ESE Down gradient of DMTdischarge piping WWA U1MW-031 0.2 mi. ENE 3 from manhole 86-2 WWA U1MW-034 0.2 mi. E ~130m from MH86-2 WWA U1MW-036 0.3 mi. ESE ~300m from MH86-2 WWA U1MW-039 0.6 mi. SSE ~1100m from MH86-2 WWA U1MW-047 4.6 mi. SSE Upstream from Gate Valve Vault at intake structure WWA U1MW-058 0.3 mi. SE ~400m from MH86-2 WWA 15

Table 5.1. Sampling Locations, Non-potable Groundwater Wells.(Cont.)

U1MW-059 1.0 mi. SSE ~1700m from MH86-2 WWA Inside Old BDL 1.4 mi. SSE Sampled through hole in Techite blowdown line WWA U2 MW-2S 1.8 mi. N Groundwater Monitoring Well WWA U2 MW-5S 1.1 mi. E Groundwater Monitoring Well WWA U2 MW-8 0.4 mi. N Groundwater Monitoring Well WWA U2 MW-10 0.4 mi. SSW Groundwater Monitoring Well WWA U2 MW-16 2.9 mi. SSE Groundwater Monitoring Well WWA F05 0.9 mi. SSE Offsite Groundwater Monitoring well. WWA F15 0.4 mi. NNE Onsite Groundwater Monitoring well. WWA Table 5.1. Sampling Locations, Soil, Food Products, Milk, Fish, Bottom Sediments and Inedible Crops.

Location Distance / Sample Description Code Direction 1 Types 2 F2 1.0 mi. SW Callaway Plant Forest Ecology Plot F2. SOL F6 1.6 mi. NE Callaway Plant Forest Ecology Plot F6. SOL PR3 1.0 mi. ESE Callaway Plant Forest Ecology Plot PR3. SOL PR7 0.5 mi. NNW Callaway Plant Forest Ecology Plot PR7. SOL W1 3 0.5 mi. SE Callaway Plant Wetlands, High Ground. SOL W2 0.5 mi. SSE Callaway Plant Wetlands, Inlet Area. SOL W3 0.6 mi. SSE Callaway Plant Wetlands, Discharge Area. SOL W4 0.6 mi. SSE Callaway Plant Wetlands, SW Bank. SOL M9 3 13 mi. SW Ferguson Farm, Tebbetts, MO. SOL V9 1.9 mi. WNW Meehan Farm, Steedman, MO FPL V11 3.2 mi. NW Hickman Farm, Steedman, MO FPL V12 3 18.7 mi. WSW Kissock Farm, South of New Bloomfield, MO FPL V16 1.6 mi. WSW Wallendorf Farm, Steedman, MO FPL V17 1.8 mi. NNW West Residence, Steedman, MO FPL M9 3 13 mi. SW Ferguson Farm, Tebbetts, MO. MLK Between 0.6 and 3.0 river miles upstream of the plant A 3,4 4.9 mi. SSE AQS, AQF discharge on the north bank.

Between the discharge area and 1.5 miles downstream of C4 4.9 mi. SE AQS, AQF the discharge, on the north bank..

FC1 3.4 mi. S Between discharge pipeline MH-8 and the Katy Trail FC FC2 3.8 mi. ESE Between discharge pipeline MH-5 and MH-3B. FC FC3 4.1 mi. SSE Between Hwy 94 and the barge loading dock access road. FC FC4 3 7.9 mi. SW South Callaway High School FC 1

Distances are measured from the midpoint of the two reactors as described in Final Safety Analysis Report (FSAR) Sec.

2.1.1.1.

2 AIO = Air Iodine, APT = Air Particulate, AQF = Fish, AQS = Sediment, FPL = Leafy Green Vegetables, FC = Food Crops, IDM = TLD, MLK = Milk, SOL = Soil, SWA = Surface Water, DWA = Drinking Water, WWA = Ground Water.

3 Control Location.

4 The expanded collection areas provide sufficient habitat to collect the required number of species.

16

Table 5.2. Collection Frequencies and Required Analyses 1 (January 1 through December 31, 2015)

Media Sample Type Collection Frequency Required Analyses Code Direct radiation IDM Quarterly Deep Dose Equivalent (DDE) 131 Airborne iodine AIO Weekly I Air particulate APT Weekly PGE5 each sample Surface water (river) SWA Monthly composite PGE and 3H PGE and 3H. If contaminated with Surface water (except UHS SWA Semiannually gamma emitting nuclides of plant pond) origin, analyze for HTD6 nuclides.

Surface water (UHS pond) SWA Semiannually PGE and 3H PGE and 3H. If contaminated with Groundwater (not potable) WWA Quarterly gamma emitting nuclides of plant origin, analyze for HTD nuclides.

PGE and 3H. If contaminated with Well water-potable DWA Monthly gamma emitting nuclides of plant origin, analyze for HTD nuclides.

Shoreline sediment AQS Semiannually PGE 2

Bottom sediment AQS Semiannually PGE Sludge pond sediment SOL Annually PGE Soil SOL Annually PGE Semimonthly when Milk animal MLK animals are on pasture, PGE and 131I monthly other times 3 Leafy green vegetables FPL Monthly when available 4 PGE and 131I Inedible crops FC At time of harvest PGE and 3H Fish AQF Semiannually PGE on edible portion 1

Samples required by ODCM unless specified otherwise.

2 Required by NPDES permit.

3 The grazing season is defined as April 15- December 15, but will vary according to weather conditions.

4 The growing season is defined as the months April 1- November 1, but will vary according to weather conditions.

5 Principal Gamma Emitters (PGE) are defined as 54Mn, 59Fe, 58Co, 60Co, 65Zn, 95Zr/Nb, 134Cs, 137Cs, 140Ba/La and other gamma- emitting nuclides that may be identified during the gamma spectroscopy analysis.

6 Hard to Detect (HTD) nuclides are defined as 89Sr, 90Sr, 55Fe, 63Ni, 237Np, 238Pu, 239/240Pu, 241Pu, 241Am, 242 Cm and 243/244Cm.

17

Table 5.3. Minimum Required Detection Capabilities for REMP Sample Analysis1 Food Non-Food Soil and Analysis Water Airborne Fish Milk (pCi/L) 3 (pCi/m ) (pCi/kg wet) (pCi/L)

Products Products Sediment (pCi/kg wet) (pCi/kg wet) (pCi/kg dry)

H-3 3000/20003 3000 Mn-54 15 130 Fe-59 30 260 Co-58/60 15 130 Zn-65 30 260 Zr-Nb-95 2 15 I-131 1000/13 0.07 1 60 Cs-134 15 0.05 130 15 60 60 150 Cs-137 18 0.06 150 18 80 80 180 Ba-La-140 2 15 15 1

This list does not mean only these nuclides will be detected and reported. Other peaks which are measurable and identifiable will be reported.

2 Total activity, parent plus daughter activity.

3 LLDs for Surface and Drinking / Ground water are the same, with the exception of H-3 and I-131. The Drinking / Ground water LLDs for H-3 and I-131 are 2000 and 1 pCi/liter respectively.

18

Table 5.4 2015 Land Use Census Results Closest Receptor in Miles 1, 2 Sector Residence Garden Milk 1 N(A) 1.84 NI NI NNE(B) 2.16 2.37 ** NI NE(C) 2.26 NI NI ENE(D) 1.66 2.86 NI E(E) 3.51 3.94 NI ESE(F) 2.11 NI NI SE(G) 2.21 NI NI SSE(H) 3.17 3.57 NI S(J) 2.86 2.86 NI SSW(K) 2.38 NI NI SW(L) 2.63 2.63 NI WSW(M) 1.20 1.96 NI W(N) 1.56 3.53 NI WNW(P) 1.93 1.93 NI NW(Q) 2.07 3.16 NI NNW(R) 1.81 NI NI 1

NI = None Identified.

2 Broadleaf Vegetation

• Declined to participate in the program.

• History as a poor provider, not included in program.

19

Table 5.5. Missed collections and analyses, Callaway Energy Center Sample Collection Date Type Analysis Location(s) or Period Comments WWA H-3, Gamma U1MW-28 01-28-15 Well dry.

Outer Casing covered in ice; well WWA H-3, Gamma WWA-937D 01-14-15 inaccessible.

WWA H-3, Gamma U1MW-028 04-20-15 Well dry.

AQS Gamma A&C 04-23-15 Indicator samples in wrong location.

FPL Gamma CA-FPL-V-9 05-11-15 Vegetables unavailable at this time.

FPL Gamma CA-FPL-V-11 05-11-15 Vegetables unavailable at this time.

FPL Gamma CA-FPL-V-12 05-11-15 Vegetables unavailable at this time.

FPL Gamma CA-FPL-V-16 05-11-15 Vegetables unavailable at this time.

FPL Gamma CA-FPL-V-9 06-10-15 Vegetables unavailable due to flooding.

DWA H-3, Gamma CA-DWA-8 07-29-15 Well pump off. Provider on vacation.

WWA H-3, Gamma U1MW-28 07-13-15 Well dry.

WWA H-3, Gamma Old Pipeline 07-15-15 Insufficient water for sample.

FPL Gamma CA-FPL-V-11 09-08-15 Garden done producing for the year.

FPL Gamma CA-FPL-V-16 09-08-15 Garden done producing for the year.

FC Gamma CA-FC-1 10-12-15 Field not planted.

FPL Gamma CA-FPL-V-9 10-13-15 Garden done producing for the year.

FPL Gamma CA-FPL-V-17 10-13-15 Garden done producing for the year.

AQS Gamma A&C 10-22-15 Indicator samples in wrong location.

DWA H-3, Gamma CA-DWA-5 10-26-15 Property sold. Not occupied.

WWA H-3, Gamma WWA-937B 11-12-15 Construction in area. Not safely accessible.

WWA H-3, Gamma WWA-937B 12-13-15 Construction in area. Not safely accessible.

20

Table 5.6 Radiological Environmental Monitoring Program Summary Number Indicator Location with Highest Control Non-Sample Type and Locations Annual Mean Locations Routine Req'd Results(e)

Type Number of Mean, Mean, LLD(b)

(Units) Analyses(a) Fraction, Mean, Fraction, Range (c) Location (d) Fraction, Range (c)

Range (c)

Waterborne Pathway 239 (4/12) SWA-S02 239 (4/12)

Surface Water H-3 24 3000 ND 0 (171-351) 4.9 mi SE (171-351)

(pCi/L)

GS 24 (b) ND - - ND 0 Surface Water, H-3 21 3000 178 (1/21) SWA-UHS 178 (1/21) none 0 Ponds (pCi/L) GS 21 (b) ND - - ND 0 H-3 83 2000 ND - - ND 0 Potable Wells (pCi/L) GS 83 (b) ND - - ND 0 1700 6237 (8/8)

Wells H-3 287 3000 (98/287) CA-U1MW-36 (1614- None 0 (non-potable) (156-13295) 13295)

(pCi/L)

GS 273 (b) ND - - ND 0 Cs-134 8 150 ND - - ND 0 Sediments (pCi/kg) dry 83 (2/4) CA-AQS-C 83 (2/4)

Cs-137 8 180 ND 0 (76-90) 4.9 mi SE (76-90)

Airborne Pathway Airborne Particulates GS 260 (b) ND - - None 0 3

(pCi/m )

Airborne I-131 260 0.07 ND - - None 0 Iodine 3

(pCi/m )

Soil Cs-134 18 150 ND - - ND 0 Soil (pCi/kg) dry 180 292 (10/14) F-002 511 (2/2) 115 (3/4) 0 Cs-137 18 (114-531) 1.0 mi. SW (491-531) (65-176) 21

Table 5.6 Radiological Environmental Monitoring Program Summary Indicator Location with Highest Control Annual Mean Number Sample Type and Locations Locations Req'd Non-Type Number of Mean, Mean, LLD(b) Mean, Routine (Units) Analyses(a) Fraction, Fraction, Location (d) Fraction, Results(e)

Range (c) Range (c)

Range (c)

Ingestion Pathway Food Products Leafy Green GS 30 (b) ND - - ND 0 Vegetables (pCi/kg wet)

Non- food H-3 (f) 7 3000 ND - - ND 0 Products Soybeans (pCi/kg) wet GS 7 (b) ND - - ND 0 Fish Edible Flesh GS 20 (b) ND - - ND 0 (pCi/kg) wet I-131 20 1 none - - ND 0 Milk (pCi/L)

GS 20 (b) ND - - ND 0 Direct Radiation 15.3 (Quarterly CA-IDM-27, 17.0 (4/4) 14.7 (12/12)

Gamma 172 (160/160) 0 TLDs) 9.3 mi. ESE (16.2-17.8) (10.5-17.8)

(10.6-17.8)

(mrem/Qtr)

Neutron 18 ND - - ND 0 (a) GS = gamma spectroscopy.

(b) LLD = nominal lower limit of detection based on a 4.66 sigma counting error for background sample. LLD's for gamma spectroscopy are in Table 5.3.

(c) Mean and range are based on detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parentheses (F). ND= not detected.

(d) Locations are specified by station code (Table 5.2) and distance (miles) and direction relative to reactor site.

(e) Non-routine results are those which exceed ten times the control station value. If no control station value is available, the result is considered non-routine if it exceeds ten times the preoperational value for the location.

(f) Units: pCi/L.

22

6.0 REFERENCES

Arnold, J. R. and H. A. Al-Salih. 1955. Beryllium-7 Produced by Cosmic Rays. Science 121: 451-453.

Eisenbud, M. 1963. Environmental Radioactivity, McGraw-Hill, New York, New York, pp. 213, 275-276.

Environmental, Inc., Midwest Laboratory. 2001 - 2014. Environmental Radiological Monitoring Program for the Callaway Energy Center, Annual Report - Part II, Data Tabulations and Analyses, January - December, 2000

- 2013.

2012. Quality Assurance Program Manual, Rev. 3, 14 November 2012.

2009. Quality Control Procedures Manual, Rev. 2, 08 July 2009.

2009. Quality Control Program, Rev. 2, 12 November 2009.

Gold, S., H. W. Barkhau, B. Shlein, and B. Kahn, 1964. Measurement of Naturally Occurring Radionuclides in Air, in the Natural Environment, University of Chicago Press, Chicago, Illinois, 369-382.

Hammer, Gregory R.,Climate of Missouri, monograph available from the National Climatic Data Center (NCDC) of the National Oceanic and Atmospheric Administration (NOAA). January, 2006.

National Center for Radiological Health, 1968. Radiological Health and Data Reports, Vol. 9, Number 12, 730-746.

Stanford Dosimetry, LLC, 2014. Environmental Dosimetry Company, Annual Quality Assurance Status Report, January-December, 2013.

Teledyne Brown Engineering Environmental Services, Midwest Laboratory. 1999 - 2000. Environmental Radiological Monitoring Program for the Callaway Plant, Annual Report - Part II, Data Tabulations and Analyses, January

- December, 1998 - 1999.

U.S. Environmental Protection Agency, 2007. RadNet, formerly Environmental Radiation Ambient Monitoring System, Gross Beta in Air (MO) 1981 - 2006, Gross Beta in Drinking Water (MO) 1982- 2004.

Wilson, D. W., G. M. Ward and J. E. Johnson. 1969. Environmental Contamination by Radioactive Materials, International Atomic Energy Agency. p.125.

23

APPENDIX A INTERLABORATORY COMPARISON PROGRAM RESULTS NOTE: Environmental Inc., Midwest Laboratory participates in intercomparison studies administered by Environmental Resources Associates, and serves as a replacement for studies conducted previously by the U.S. EPA Environmental Monitoring Systems Laboratory, Las Vegas, Nevada. Results are reported in Appendix A. TLD Intercomparison results, in-house spikes, blanks, duplicates and mixed analyte performance evaluation program results are also reported. Appendix A is updated four times a year; the complete Appendix is included in March, June, September and December monthly progress reports only.

January, 2015 through December, 2015

Appendix A Interlaboratory Comparison Program Results Environmental, Inc., Midwest Laboratory has participated in interlaboratory comparison (crosscheck) programs since the formulation of its quality control program in December 1971. These programs are operated by agencies which supply environmental type samples containing concentrations of radionuclides known to the issuing agency but not to participant laboratories. The purpose of such a program is to provide an independent check on a laboratorys analytical procedures and to alert it of any possible problems.

Participant laboratories measure the concentration of specified radionuclides and report them to the issuing agency. Several months later, the agency reports the known values to the participant laboratories and specifies control limits. Results consistently higher or lower than the known values or outside the control limits indicate a need to check the instruments or procedures used.

Results in Table A-1 were obtained through participation in the environmental sample crosscheck program administered by Environmental Resources Associates, serving as a replacement for studies conducted previously by the U.S. EPA Environmental Monitoring Systems Laboratory, Las Vegas, Nevada.

Table A-2 lists results for thermoluminescent dosimeters (TLDs), via internal laboratory testing and by irradiation and evaluation by the University of Wisconsin-Madison Radiation Calibration Laboratory at the University of Wisconsin Medical Radiation Research Center.

Table A-3 lists results of the analyses on in-house spiked samples for the past twelve months. All samples are prepared using NIST traceable sources. Data for previous years available upon request.

Table A-4 lists results of the analyses on in-house blank samples for the past twelve months. Data for previous years available upon request.

Table A-5 lists REMP specific analytical results from the in-house duplicate program for the past twelve months. Acceptance is based on the difference of the results being less than the sum of the errors.

Complete analytical data for duplicate analyses is available upon request.

The results in Table A-6 were obtained through participation in the Mixed Analyte Performance Evaluation Program.

Results in Table A-7 were obtained through participation in the environmental sample crosscheck program administered by Environmental Resources Associates, serving as a replacement for studies conducted previously by the Environmental Measurement Laboratory Quality Assessment Program (EML).

Attachment A lists the laboratory precision at the 1 sigma level for various analyses. The acceptance criteria in Table A-3 is set at +/- 2 sigma.

Out-of-limit results are explained directly below the result.

A1

Attachment A ACCEPTANCE CRITERIA FOR SPIKED SAMPLES LABORATORY PRECISION: ONE STANDARD DEVIATION VALUES FOR VARIOUS ANALYSESa One standard deviation Analysis Level for single determination Gamma Emitters 5 to 100 pCi/liter or kg 5.0 pCi/liter

> 100 pCi/liter or kg 5% of known value Strontium-89b 5 to 50 pCi/liter or kg 5.0 pCi/liter

> 50 pCi/liter or kg 10% of known value Strontium-90b 2 to 30 pCi/liter or kg 5.0 pCi/liter

> 30 pCi/liter or kg 10% of known value Potassium-40 0.1 g/liter or kg 5% of known value Gross alpha 20 pCi/liter 5.0 pCi/liter

> 20 pCi/liter 25% of known value Gross beta 100 pCi/liter 5.0 pCi/liter

> 100 pCi/liter 5% of known value Tritium 4,000 pCi/liter +/- 1 =

169.85 x (known)0.0933

> 4,000 pCi/liter 10% of known value Radium-226,-228 0.1 pCi/liter 15% of known value Plutonium 0.1 pCi/liter, gram, or sample 10% of known value Iodine-131, 55 pCi/liter 6 pCi/liter Iodine-129b > 55 pCi/liter 10% of known value Uranium-238, 35 pCi/liter 6 pCi/liter Nickel-63b > 35 pCi/liter 15% of known value Technetium-99b Iron-55b 50 to 100 pCi/liter 10 pCi/liter

> 100 pCi/liter 10% of known value Other Analyses b --- 20% of known value a

From EPA publication, Environmental Radioactivity Laboratory Intercomparison Studies Program, Fiscal Year, 1981-1982, EPA-600/4-81-004.

b Laboratory limit.

A2

TABLE A-1. Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA)a.

Concentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Result b Result c Limits Acceptance ERW-1444 4/6/2015 Sr-89 59.71 +/- 5.44 63.20 51.10 - 71.20 Pass ERW-1444 4/6/2015 Sr-90 43.41 +/- 2.43 41.90 30.80 - 48.10 Pass ERW-1448 4/6/2015 Ba-133 77.75 +/- 4.69 82.50 69.30 - 90.80 Pass ERW-1448 4/6/2015 Cs-134 68.82 +/- 3.08 75.70 61.80 - 83.30 Pass ERW-1448 4/6/2015 Cs-137 191.9 +/- 5.9 189.0 170.0 - 210.0 Pass ERW-1448 4/6/2015 Co-60 85.05 +/- 4.59 84.50 76.00 - 95.30 Pass ERW-1448 4/6/2015 Zn-65 196.0 +/- 12.0 203.0 183.0 - 238.0 Pass ERW-1450 4/6/2015 Gr. Alpha 34.05 +/- 1.90 42.60 22.10 - 54.00 Pass ERW-1450 4/6/2015 G. Beta 26.93 +/- 1.12 32.90 21.30 - 40.60 Pass ERW-1453 4/6/2015 I-131 22.47 +/- 0.83 23.80 19.70 - 28.30 Pass ERW-1456 4/6/2015 Ra-226 8.20 +/- 0.56 8.43 6.33 - 9.90 Pass ERW-1456 4/6/2015 Ra-228 5.00 +/- 0.67 4.39 2.56 - 6.01 Pass ERW-1456 4/6/2015 Uranium 5.98 +/- 0.31 6.59 4.99 - 7.83 Pass ERW-1461 4/6/2015 H-3 3,254 +/- 180 3280 2,770 - 3,620 Pass ERW-5528 10/5/2015 Sr-89 34.76 +/- 0.06 35.70 26.70 - 42.50 Pass ERW-5528 10/5/2015 Sr-90 29.23 +/- 0.06 31.10 22.70 - 36.10 Pass ERW-5531 10/5/2015 Ba-133 30.91 +/- 0.53 32.50 25.90 - 36.70 Pass ERW-5531 10/5/2015 Cs-134 57.40 +/- 2.57 62.30 50.69 - 68.50 Pass ERW-5531 10/5/2015 Cs-137 163.1 +/- 4.8 157.0 141.0 - 175.0 Pass ERW-5531 10/5/2015 Co-60 73.41 +/- 1.72 71.10 64.00 - 80.70 Pass ERW-5531 10/5/2015 Zn-65 138.9 +/- 5.7 126.0 113.0 - 149.0 Pass ERW-5534 10/5/2015 Gr. Alpha 29.99 +/- 0.08 51.60 26.90 - 64.70 Pass ERW-5534 10/5/2015 G. Beta 27.52 +/- 0.04 36.60 24.10 - 44.20 Pass ERW-5537 10/5/2015 I-131 25.54 +/- 0.60 26.30 21.90 - 31.00 Pass ERW-5540 10/5/2015 Ra-226 7.32 +/- 0.37 7.29 5.49 - 8.63 Pass ERW-5540 d 10/5/2015 Ra-228 7.80 +/- 0.02 4.25 2.46 - 5.85 Fail ERW-5540 e 10/5/2015 Ra-228 4.45 +/- 0.96 4.25 2.46 - 5.85 Pass ERW-5540 10/5/2015 Uranium 53.30 +/- 0.55 56.20 45.70 - 62.40 Pass ERW-5543 10/5/2015 H-3 21,260 +/- 351 21,300 18,700 - 23,400 Pass a

Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the crosscheck program for proficiency testing in drinking water conducted by Environmental Resources Associates (ERA).

b Unless otherwise indicated, the laboratory result is given as the mean +/- standard deviation for three determinations.

c Results are presented as the known values, expected laboratory precision (1 sigma, 1 determination) and control limits as provided by ERA.

d Ra-228 spike was at a level close to the detection level. The high result was likely caused by interference from short-lived Rn-222 daughters.

e The result of reanalysis (Compare to original result, footnoted "e" above).

A1-1

TABLE A-2. Table has been intentionally omitted.

A2-1

TABLE A-3. In-House "Spiked" Samples Concentration (pCi/L)a Lab Code b Date Analysis Laboratory results Known Control 2s, n=1 c Activity Limits d Acceptance W-020315 2/3/2015 Ra-226 16.19 +/- 0.42 16.70 13.36 - 20.04 Pass W-021215 2/12/2015 Gr. Alpha 18.38 +/- 0.39 20.10 16.08 - 24.12 Pass W-021215 2/12/2015 Gr. Beta 27.98 +/- 0.32 30.90 24.72 - 37.08 Pass SPW-687 2/27/2015 Ni-63 239.6 +/- 3.5 202.4 161.9 - 242.9 Pass SPAP-689 3/2/2015 Gr. Beta 42.37 +/- 3.50 43.61 34.89 - 52.33 Pass SPAP-691 3/2/2015 Cs-134 1.77 +/- 0.61 1.90 1.52 - 2.28 Pass SPAP-691 3/2/2015 Cs-137 83.02 +/- 2.60 97.20 77.76 - 116.64 Pass SPW-693 3/2/2015 Cs-134 44.30 +/- 2.53 53.40 42.72 - 64.08 Pass SPW-693 3/2/2015 Cs-137 74.82 +/- 3.50 73.80 59.04 - 88.56 Pass SPW-693 3/2/2015 Sr-89 87.45 +/- 3.62 87.48 69.98 - 104.98 Pass SPW-693 3/25/2015 Sr-90 37.22 +/- 1.55 38.10 30.48 - 45.72 Pass SPMI-697 3/2/2015 Cs-134 96.67 +/- 7.74 107.00 85.60 - 128.40 Pass SPMI-697 3/2/2015 Cs-137 78.51 +/- 7.02 73.84 59.07 - 88.61 Pass SPMI-697 3/2/2015 Sr-89 72.98 +/- 4.86 87.48 69.98 - 104.98 Pass SPMI-697 3/2/2015 Sr-90 39.17 +/- 1.51 38.10 30.48 - 45.72 Pass SPW-699 3/2/2015 H-3 59,592 +/- 703 58,445 46,756 - 70,134 Pass W-031115 3/11/2015 Ra-226 13.73 +/- 0.35 16.70 13.36 - 20.04 Pass W-030215 3/2/2015 Ra-228 32.79 +/- 2.31 31.44 25.15 - 37.73 Pass SPF-1040 3/16/2015 Cs-134 787.5 +/- 9.2 840.0 672.0 - 1,008.0 Pass SPF-1040 3/16/2015 Cs-137 2,599 +/- 24 2,360 1,888 - 2,832 Pass SPW-1036 3/25/2015 Fe-55 1,792 +/- 63 1961 1,569 - 2,353 Pass SPW-1374 4/6/2015 U-238 46.03 +/- 2.25 41.70 25.02 - 58.38 Pass W-040815 4/8/2015 Gr. Alpha 20.18 +/- 0.42 20.10 16.08 - 24.12 Pass W-040815 4/8/2015 Gr. Beta 29.70 +/- 0.33 30.90 24.72 - 37.08 Pass SPW-1038 4/13/2015 C-14 3,497 +/-9 4,734 2,840 - 6,628 Pass W-2165 4/20/2015 H-3 5550 +/- 226 5,780 3,468 - 8,092 Pass W-2165 4/20/2015 Sr-89 90.70 +/- 8.20 108.70 65.22 - 152.18 Pass W-2165 4/20/2015 Sr-90 76.80 +/- 2.00 75.90 45.54 - 106.26 Pass W-2165 4/20/2015 Cs-134 62.40 +/- 6.40 57.30 34.38 - 80.22 Pass W-2165 4/20/2015 Cs-137 91.30 +/- 7.70 84.00 50.40 - 117.60 Pass W-2392 4/13/2015 H-3 5032 +/- 214 5780 3468 - 8092 Pass W-2392 4/13/2015 Ni-63 222.4 +/- 3.8 202.0 121.2 - 282.8 Pass W-2392 4/13/2015 Cs-134 53.26 +/- 5.01 57.30 34.38 - 80.22 Pass W-2392 4/13/2015 Cs-137 91.90 +/- 7.76 84.20 50.52 - 117.88 Pass W-042415 4/24/2015 Ra-226 12.52 +/- 0.39 16.70 10.02 - 23.38 Pass W-050715 5/7/2015 Gr. Alpha 19.05 +/- 0.41 20.10 12.06 - 28.14 Pass W-050715 5/7/2015 Gr. Beta 27.30 +/- 0.32 30.90 18.54 - 43.26 Pass W-061215 6/12/2015 Gr. Alpha 20.72 +/- 0.44 20.10 12.06 - 28.14 Pass W-061215 6/12/2015 Gr. Beta 28.51 +/- 0.33 30.90 18.54 - 43.26 Pass U-2982 6/9/2015 Gr. Beta 500.1 +/- 5.1 604.0 362.4 - 845.6 Pass U-3200 6/9/2015 H-3 2229 +/- 424 2346 1408 - 3284 Pass W-70915 7/9/2015 Gr. Alpha 18.76 +/- 0.40 20.10 12.1 - 28.1 Pass W-70915 7/9/2015 Gr. Beta 29.71 +/- 0.33 30.90 18.5 - 43.3 Pass SPAP-3859 7/21/2015 Gr. Beta 41.59 +/- 0.12 43.61 26.17 - 61.05 Pass SPAP-3861 7/21/2015 Cs-134 1.69 +/- 0.60 1.69 1.0 - 2.4 Pass A3-1

TABLE A-3. In-House "Spiked" Samples Concentration (pCi/L)a Lab Code b Date Analysis Laboratory results Known Control 2s, n=1 c Activity Limits d Acceptance SPAP-3861 7/21/2015 Cs-137 93.71 +/- 2.64 96.45 57.87 - 135.03 Pass SPMI-3863 7/21/2015 Cs-134 38.21 +/- 5.12 47.02 28.21 - 65.83 Pass SPMI-3863 7/21/2015 Cs-137 78.65 +/- 7.94 73.18 43.91 - 102.45 Pass SPMI-3863 7/21/2015 Sr-90 41.05 +/- 1.62 37.78 22.67 - 52.89 Pass SPW-3871 7/21/2015 Cs-134 45.59 +/- 6.39 47.02 28.21 - 65.83 Pass SPW-3871 7/21/2015 Cs-137 78.73 +/- 7.03 73.18 43.91 - 102.45 Pass SPW-3871 7/21/2015 Sr-90 38.36 +/- 1.58 37.78 22.67 - 52.89 Pass SPW-3873 7/21/2015 H-3 60,034 +/- 671 57,199 34,319 - 80,079 Pass SPW-3875 7/21/2015 Ni-63 451.3 +/- 3.3 403.7 242.2 - 565.2 Pass SPW-3877 7/21/2015 Tc-99 483.0 +/- 8.3 539.1 323.5 - 754.7 Pass SPMI-3879 7/21/2015 C-14 4,921 +/- 19 4,736 2,842 - 6,630 Pass SPSO-4037 7/21/2015 Ni-63 42,458 +/- 309 40,370 24,222 - 56,518 Pass SPW-072515 7/17/2015 Ra-228 35.48 +/-3 31.44 18.86 - 44.02 Pass SPF-4104 7/29/2015 Cs-134 661.5 +/- 115.9 740.0 444.0 - 1036.0 Pass SPF-4104 7/29/2015 Cs-137 2,469 +/- 59 2,340 1,404 - 3,276 Pass SPW-81015 8/10/2015 Gr. Alpha 21.59 +/- 0.46 20.10 12.06 - 28.14 Pass SPW-81015 8/10/2015 Gr. Beta 27.58 +/- 0.32 30.90 18.54 - 43.26 Pass SPW-81315 8/13/2015 Ra-226 15.05 +/- 0.36 16.70 10.02 - 23.38 Pass SPW-90615 9/6/2015 Gr. Alpha 18.32 +/- 0.40 20.10 12.06 - 28.14 Pass SPW-90615 9/6/2015 Gr. Beta 29.43 +/- 0.33 30.90 18.54 - 43.26 Pass W-091415 9/14/2016 Gr. Alpha 19.35 +/- 0.51 20.10 12.06 - 28.14 Pass W-091415 9/14/2016 Gr. Beta 31.53 +/- 0.35 30.90 18.54 - 43.26 Pass W-100815 10/8/2015 Ra-228 12.27 +/- 0.33 16.70 10.02 - 23.38 Pass W-100615 10/6/2016 Gr. Alpha 20.62 +/- 0.43 20.10 12.06 - 28.14 Pass W-100615 10/6/2016 Gr. Beta 29.35 +/- 0.33 30.90 18.54 - 43.26 Pass W-5277 10/16/2015 H-3 5,224 +/- 218 5,466 3,280 - 7,652 Pass W-5277 10/16/2015 Cs-134 99.40 +/- 6.64 99.20 59.52 - 138.88 Pass W-5277 10/16/2015 Cs-137 89.60 +/- 6.64 83.20 49.92 - 116.48 Pass W-110415 11/4/2015 Ra-226 12.27 +/- 0.33 16.70 10.02 - 23.38 Pass W-111115 11/11/2015 Ra-228 31.78 +/- 2.48 31.44 18.86 - 44.02 Pass W-6086,6087 11/18/2015 H-3 10,882 +/- 309 11,231 6,738 - 15,723 Pass W-6086,6087 11/18/2015 Cs-134 92.98 +/- 7.29 96.25 57.75 - 134.75 Pass W-6086,6087 11/18/2015 Cs-137 76.65 +/- 7.81 82.94 49.76 - 116.12 Pass W-112515 11/25/2015 Gr. Alpha 20.91 +/- 0.52 20.10 12.06 - 28.14 Pass W-112515 11/25/2015 Gr. Beta 31.59 +/- 0.35 30.90 18.54 - 43.26 Pass W-120715 12/7/2015 Fe-55 2,431 +/- 97 2,319 1,391 - 3,247 Pass W-120815 12/8/2015 Gr. Alpha 20.72 +/- 0.43 20.10 12.06 - 28.14 Pass W-120815 12/8/2015 Gr. Beta 29.50 +/- 0.33 30.90 18.54 - 43.26 Pass W-121515 12/15/2015 Ra-226 14.77 +/- 0.42 16.70 10.02 - 23.38 Pass a

Liquid sample results are reported in pCi/Liter, air filters( pCi/m3), charcoal (pCi/charcoal canister), and solid samples (pCi/kg).

b Laboratory codes : W (Water), MI (milk), AP (air filter), SO (soil), VE (vegetation), CH (charcoal canister), F (fish), U (urine).

c Results are based on single determinations.

d Control limits are established from the precision values listed in Attachment A of this report, adjusted to +/- 2s.

NOTE: For fish, Jello is used for the spike matrix. For vegetation, cabbage is used for the spike matrix.

A3-2

TABLE A-4. In-House "Blank" Samples Concentration (pCi/L)a b

Lab Code Sample Date Analysis Laboratory results (4.66s) Acceptance Type LLD Activityc Criteria (4.66 s)

W-020315 Water 2/3/2015 Ra-226 0.03 0.03 +/- 0.02 1 W-021215 Water 2/12/2015 Gr. Alpha 0.47 -0.37 +/- 0.30 2 W-021215 Water 2/12/2015 Gr. Beta 0.76 -0.62 +/- 0.51 4 SPW-686 Water 2/27/2015 Ni-63 2.36 -0.74 +/- 1.42 20 SPAP-688 Air Particulate 3/2/2015 Gr. Beta 0.003 -0.001 +/- 0.002 0.01 SPAP-690 Air Particulate 3/2/2015 Cs-134 0.006 0.428 +/- 0.927 0.05 SPAP-690 Air Particulate 3/2/2015 Cs-137 0.006 -0.785 +/- 1.146 0.05 W-030215 Water 3/2/2015 Ra-228 0.76 0.22 +/- 0.38 2 SPW-692 Water 3/2/2015 Cs-134 6.70 -1.57 +/- 3.55 10 SPW-692 Water 3/2/2015 Cs-137 6.18 -0.15 +/- 3.20 10 SPW-692 Water 3/2/2015 Sr-89 0.61 -0.51 +/- 0.51 5 SPW-692 Water 3/2/2015 Sr-90 0.60 0.38 +/- 0.33 1 SPMI-696 Milk 3/2/2015 Cs-134 3.75 -0.25 +/- 2.24 10 SPMI-696 Milk 3/2/2015 Cs-137 4.36 -0.25 +/- 2.24 10 SPMI-696 Milk 3/2/2015 Sr-89 0.80 -0.40 +/- 0.84 5 SPMI-696 Milk 3/2/2015 Sr-90 0.49 0.98 +/- 0.32 1 SPW-698 Water 3/2/2015 H-3 144.0 28.6 +/- 88.9 200 SPW-1035 Water 3/16/2015 Fe-55 599.7 72.6 +/- 368.1 1000 SPW-1037 Water 3/16/2015 C-14 8.94 2.16 +/- 5.47 200 SPF-1039 Fish 3/16/2015 Cs-134 13.54 -1.00 +/- 6.80 100 SPF-1039 Fish 3/16/2015 Cs-137 9.80 4.87 +/- 7.00 100 W-040615 Water 4/6/2015 Ra-226 0.04 0.01 +/- 0.03 2 W-1373 Water 4/6/2015 U-238 0.08 0.01 +/- 0.01 1 W-1375 Water 4/6/2015 Pu-238 0.03 0.00 +/- 0.01 1 W-050715 Water 5/7/2015 Gr. Alpha 0.38 -0.10 +/- 0.25 2 W-050715 Water 5/7/2015 Gr. Beta 0.74 -0.14 +/- 0.51 4 W-061215 Water 6/12/2015 Gr. Alpha 0.42 -0.10 +/- 0.29 2 W-061215 Water 6/12/2015 Gr. Beta 0.75 -0.04 +/- 0.53 4 SPW-3858 Water 7/21/2015 Gr. Beta 0.003 0.004 +/- 0.002 2 SPAP-3860 Air Particulate 7/21/2015 Cs-134 0.011 0.010 +/- 0.005 0.05 SPAP-3860 Air Particulate 7/21/2015 Cs-137 0.009 0.000 +/- 0.005 0.05 SPMI-3862 Milk 7/21/2015 Cs-134 3.13 1.56 +/- 1.74 10 SPMI-3862 Milk 7/21/2015 Cs-137 3.20 1.69 +/- 1.89 10 SPMI-3862 Milk 7/21/2015 Sr-89 2.17 -1.30 +/- 2.05 5 SPMI-3862 Milk 7/21/2015 Sr-90 0.90 0.74 +/- 0.50 1 SPW-3870 Water 7/21/2015 Cs-134 3.01 0.71 +/- 1.66 10 SPW-3870 Water 7/21/2015 Cs-137 3.94 0.81 +/- 1.86 10 SPW-3870 Water 7/21/2015 Sr-89 2.28 -0.42 +/- 1.80 5 SPW-3870 Water 7/21/2015 Sr-90 0.84 0.25 +/- 0.42 1 A4-1

TABLE A-4. In-House "Blank" Samples Concentration (pCi/L)a b

Lab Code Sample Date Analysis Laboratory results (4.66s) Acceptance Type LLD Activityc Criteria (4.66 s)

SPW-3872 Water 7/21/2015 H-3 142.6 82.7 +/- 79.4 200 SPW-3874 Water 7/21/2015 Ni-63 2.98 0.77 +/- 1.82 20 SPW-3876 Water 7/21/2015 Tc-99 5.49 -3.81 +/- 3.26 10 SPW-3878 Water 7/21/2015 C-14 17.06 8.52 +/- 10.54 200 SPSO-4036 Soil 7/21/2015 Ni-63 135.7 51.3 +/- 83.0 1000 SPF-4103 Fish 7/29/2015 Cs-134 14.17 -37.70 +/- 9.67 100 SPF-4103 Fish 7/29/2015 Cs-137 12.39 1.13 +/- 8.06 100 W-081015 Water 8/10/2015 Gr. Alpha 0.48 -0.10 +/- 0.33 2 W-081015 Water 8/10/2015 Gr. Beta 0.78 -0.18 +/- 0.54 4 W-081815 Water 8/18/2015 Ra-226 0.03 0.03 +/- 0.02 2 W-090615 Water 9/6/2015 Gr. Alpha 0.40 0.00 +/- 0.28 2 W-090615 Water 9/6/2015 Gr. Beta 0.77 0.22 +/- 0.54 4 W-091415 Water 9/14/2015 Gr. Alpha 0.41 0.10 +/- 0.30 2 W-091415 Water 9/14/2015 Gr. Beta 0.77 0.04 +/- 0.54 4 W-100615 Water 10/6/2015 Gr. Alpha 0.41 -0.15 +/- 0.27 2 W-100615 Water 10/6/2015 Gr. Beta 0.75 -0.12 +/- 0.52 4 W-112515 Water 11/25/2015 Gr. Alpha 0.42 0.05 +/- 0.30 2 W-112515 Water 11/25/2015 Gr. Beta 0.78 -0.31 +/- 0.54 4 W-120815 Water 12/8/2015 Gr. Alpha 0.42 -0.08 +/- 0.29 2 W-120815 Water 12/8/2015 Gr. Beta 0.76 0.17 +/- 0.54 4 W-121515 Water 12/15/2015 Ra-226 0.01 0.01 +/- 0.01 2 a

Liquid sample results are reported in pCi/Liter, air filters( pCi/m3), charcoal (pCi/charcoal canister), and solid samples (pCi/kg).

b I-131(G); iodine-131 as analyzed by gamma spectroscopy.

c Activity reported is a net activity result.

A4-2

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance CF-62,63 1/7/2015 Gr. Beta 5.72 +/- 0.12 5.78 +/- 0.12 5.75 +/- 0.42 Pass CF-62,63 1/7/2015 Be-7 0.915 +/- 0.135 0.919 +/- 0.102 0.917 +/- 0.15 Pass CF-62,63 1/7/2015 K-40 3.97 +/- 0.28 3.88 +/- 0.23 3.92 +/- 0.33 Pass CF-62,63 1/7/2015 Sr-90 0.017 +/- 0.006 0.011 +/- 0.006 0.014 +/- 0.004 Pass SG-83,84 1/12/2015 K-40 10.11 +/- 1.42 9.69 +/- 1.20 9.90 +/- 1.16 Pass SG-83,84 1/12/2015 Tl-208 0.57 +/- 0.07 0.56 +/- 0.06 0.57 +/- 0.05 Pass SG-83,84 1/12/2015 Pb-212 1.73 +/- 0.10 1.58 +/- 0.09 1.65 +/- 0.13 Pass SG-83,84 1/12/2015 Pb-214 13.33 +/- 0.33 13.88 +/- 0.28 13.61 +/- 0.22 Pass SG-83,84 1/12/2015 Bi-214 13.48 +/- 0.39 13.45 +/- 0.29 13.47 +/- 0.24 Pass SG-83,84 1/12/2015 Ra-226 25.68 +/- 2.19 26.22 +/- 1.53 25.95 +/- 1.34 Pass SG-83,84 1/12/2015 Ac-228 13.33 +/- 0.59 12.86 +/- 0.43 13.09 +/- 0.36 Pass AP-011215A/B 1/12/2015 Gr. Beta 0.025 +/- 0.004 0.023 +/- 0.004 0.024 +/- 0.003 Pass WW-315,316 1/27/2015 H-3 1,961 +/- 178 1,868 +/- 174 1,915 +/- 124 Pass DW-60010,60011 1/28/2015 Ra-226 1.25 +/- 0.14 1.40 +/- 0.15 1.33 +/- 0.10 Pass DW-60010,60011 1/28/2015 Ra-228 2.00 +/- 0.66 1.39 +/- 0.60 1.70 +/- 0.45 Pass SG-336,337 1/30/2015 Bi-214 6.63 +/- 0.20 6.45 +/- 0.45 6.54 +/- 0.21 Pass SG-336,337 1/30/2015 Pb-214 6.45 +/- 0.19 6.45 +/- 0.37 6.45 +/- 0.21 Pass SG-336,337 1/30/2015 Ac-228 4.43 +/- 0.24 4.20 +/- 0.58 4.32 +/- 0.31 Pass AP-020415A/B 2/4/2015 Gr. Beta 0.021 +/- 0.004 0.019 +/- 0.035 0.035 +/- 0.020 Pass AP-021115A/B 2/11/2015 Gr. Beta 0.034 +/- 0.004 0.040 +/- 0.047 0.037 +/- 0.003 Pass DW-60023,60024 2/26/2015 Ra-226 1.52 +/- 0.15 1.51 +/- 0.15 1.52 +/- 0.11 Pass DW-60023,60024 2/26/2015 Ra-228 0.97 +/- 0.48 1.66 +/- 0.58 1.32 +/- 0.38 Pass S-799,800 2/26/2015 K-40 11.96 +/- 0.98 11.49 +/- 0.82 11.72 +/- 0.64 Pass S-799,800 2/26/2015 Tl-208 0.36 +/- 0.04 0.31 +/- 0.04 0.34 +/- 0.03 Pass S-799,800 2/26/2015 Pb-212 0.92 +/- 0.06 0.91 +/- 0.06 0.91 +/- 0.05 Pass S-799,800 2/26/2015 Bi-212 1.26 +/- 0.45 1.50 +/- 0.40 1.38 +/- 0.30 Pass S-799,800 2/26/2015 Ac-228 1.35 +/- 0.22 1.23 +/- 0.17 1.29 +/- 0.14 Pass SG-834,835 2/2/2015 Gr. Alpha 113.3 +/- 6.3 117.2 +/- 2.8 115.2 +/- 3.4 Pass SG-834,835 2/2/2015 Gr. Beta 82.27 +/- 2.79 84.33 +/- 2.74 83.30 +/- 1.96 Pass DW-60031,60032 3/4/2015 Gr. Alpha 185.4 +/- 7.4 177.0 +/- 7.2 181.2 +/- 5.2 Pass DW-60036,60037 3/4/2015 Ra-226 6.89 +/- 0.34 6.88 +/- 0.32 6.89 +/- 0.23 Pass DW-60036,60037 3/4/2015 Ra-228 4.43 +/- 0.73 4.41 +/- 0.72 4.42 +/- 0.51 Pass DW-60048,60049 3/4/2015 Ra-226 0.84 +/- 0.10 0.94 +/- 0.11 0.89 +/- 0.07 Pass DW-60048,60049 3/4/2015 Ra-228 0.68 +/- 0.41 1.42 +/- 0.58 1.05 +/- 0.36 Pass AP-1169,1170 3/19/2015 Be-7 0.20 +/- 0.02 0.24 +/- 0.10 0.22 +/- 0.07 Pass DW-60069,60070 4/8/2015 Gr. Alpha 3.58 +/- 0.88 3.92 +/- 0.88 3.75 +/- 0.62 Pass AP-040915 4/9/2015 Gr. Beta 0.027 +/- 0.005 0.023 +/- 0.005 0.025 +/- 0.003 Pass WW-2394,2395 4/13/2015 H-3 1,628 +/- 139 1,695 +/- 141 1,662 +/- 99 Pass SG-1847,1848 4/20/2015 K-40 3.24 +/- 1.18 1.99 +/- 0.76 2.62 +/- 0.70 Pass SG-1847,1848 4/20/2015 Pb-214 5.80 +/- 0.22 6.23 +/- 0.76 6.02 +/- 0.40 Pass SG-1847,1848 4/20/2015 Ac-228 5.26 +/- 0.51 5.00 +/- 0.42 5.13 +/- 0.33 Pass XWW-2267,2268 4/23/2015 H-3 6,584 +/- 244 6,164 +/- 237 6,374 +/- 170 Pass XWW-2078,2079 4/27/2015 H-3 359.0 +/- 89.6 418.7 +/- 92.3 388.9 +/- 64.3 Pass A5-1

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance XWW-2162,2163 4/28/2015 H-3 4,408 +/- 201 4,242 +/- 198 4,325 +/- 141 Pass SG-1868,1869 4/28/2015 Gr. Alpha 47.57 +/- 3.63 43.61 +/- 3.58 45.59 +/- 2.55 Pass SG-1868,1869 4/28/2015 Gr. Beta 50.90 +/- 1.94 51.90 +/- 2.02 51.40 +/- 1.40 Pass SG-1868,1869 4/28/2015 Pb-214 13.80 +/- 0.52 13.54 +/- 0.62 13.67 +/- 0.40 Pass SG-1868,1869 4/28/2015 Ra-228 20.10 +/- 0.92 22.10 +/- 1.29 21.10 +/- 0.79 Pass AP-042915 4/29/2015 Gr. Beta 0.014 +/- 0.003 0.014 +/- 0.003 0.014 +/- 0.002 Pass DW-60076,60077 5/4/2015 Ra-228 2.89 +/- 0.61 2.45 +/- 0.57 2.67 +/- 0.42 Pass AP-050515 5/5/2015 Gr. Beta 0.026 +/- 0.004 0.025 +/- 0.004 0.026 +/- 0.003 Pass AP-051115 5/11/2015 Gr. Beta 0.006 +/- 0.005 0.010 +/- 0.005 0.008 +/- 0.004 Pass DW-60087,60088 5/14/2015 Ra-226 1.58 +/- 0.17 1.52 +/- 0.17 1.55 +/- 0.12 Pass DW-60087,60088 5/14/2015 Ra-228 0.94 +/- 0.50 0.94 +/- 0.50 0.94 +/- 0.35 Pass SG-2436,2437 5/15/2015 Pb-214 22.90 +/- 2.31 24.10 +/- 2.43 23.50 +/- 1.68 Pass SG-2436,2437 5/15/2015 Ra-228 47.95 +/- 0.61 47.80 +/- 0.71 47.88 +/- 0.47 Pass SG-2436,2437 5/15/2015 Gr. Alpha 267.8 +/- 7.9 254.6 +/- 7.6 261.2 +/- 5.5 Pass SG-2458,2459 5/19/2015 Pb-214 75.00 +/- 1.66 77.70 +/- 1.75 76.35 +/- 1.21 Pass SG-2458,2459 5/19/2015 Ra-228 41.10 +/- 0.92 40.80 +/- 0.83 40.95 +/- 0.62 Pass DW-60095,60096 5/26/2015 Gr. Alpha 1.34 +/- 0.69 0.91 +/- 0.62 1.13 +/- 0.46 Pass AP-052715 5/27/2015 Gr. Beta 0.010 +/- 0.003 0.010 +/- 0.003 0.010 +/- 0.002 Pass S-2627,2628 5/29/2015 Pb-214 0.85 +/- 0.07 0.85 +/- 0.07 0.85 +/- 0.05 Pass S-2627,2628 5/29/2015 Ac-228 0.85 +/- 0.14 1.08 +/- 0.12 0.97 +/- 0.09 Pass S-2627,2628 5/29/2015 Cs-137 0.07 +/- 0.02 0.07 +/- 0.02 0.07 +/- 0.01 Pass S-2605,2606 6/1/2015 Ac-228 0.42 +/- 0.06 0.38 +/- 0.07 0.40 +/- 0.05 Pass S-2605,2606 6/1/2015 Ra-226 0.44 +/- 0.03 0.49 +/- 0.03 0.47 +/- 0.02 Pass S-2605,2606 6/1/2015 K-40 10.89 +/- 0.51 11.40 +/- 0.48 11.15 +/- 0.35 Pass S-2605,2606 6/1/2015 Cs-137 0.05 +/- 0.01 0.05 +/- 0.01 0.05 +/- 0.01 Pass S-2858,2859 6/2/2015 Cs-137 34.30 +/- 16.05 40.66 +/- 17.79 37.48 +/- 11.98 Pass S-2858,2859 6/2/2015 Be-7 1501 +/- 264 1171 +/- 214 1336 +/- 170 Pass S-2858,2859 6/2/2015 K-40 22,122 +/- 658 20,987 +/- 600 21,555 +/- 445 Pass AP-060315 6/3/2015 Gr. Beta 0.022 +/- 0.004 0.021 +/- 0.004 0.022 +/- 0.003 Pass DW-30107,30108 6/8/2015 Gr. Alpha 1.34 +/- 0.82 1.47 +/- 0.85 1.41 +/- 0.59 Pass SG-2900,2901 6/9/2015 Ac-228 10.22 +/- 1.36 8.32 +/- 1.07 9.27 +/- 0.87 Pass SG-2900,2901 6/9/2015 Pb-214 7.55 +/- 0.43 7.27 +/- 0.41 7.41 +/- 0.30 Pass AP-061515 6/15/2015 Gr. Beta 0.022 +/- 0.004 0.021 +/- 0.004 0.022 +/- 0.003 Pass XWW-3173,3174 6/18/2015 H-3 841.9 +/- 123.6 799.3 +/- 122.4 820.6 +/- 87.0 Pass AP-062215 6/22/2015 Gr. Beta 0.023 +/- 0.004 0.018 +/- 0.004 0.020 +/- 0.003 Pass S-3216,3217 6/24/2015 K-40 10.38 +/- 0.51 10.51 +/- 0.53 10.45 +/- 0.37 Pass S-3216,3217 6/24/2015 Be-7 3.65 +/- 0.24 3.38 +/- 0.27 3.52 +/- 0.18 Pass VE-3300,3301 6/24/2015 Be-7 0.78 +/- 0.15 0.83 +/- 0.23 0.81 +/- 0.14 Pass VE-3300,3301 6/24/2015 K-40 29.12 +/- 0.62 29.36 +/- 0.64 29.24 +/- 0.45 Pass AP-062915 6/29/2015 Gr. Beta 0.023 +/- 0.005 0.023 +/- 0.005 0.023 +/- 0.003 Pass WW-3632,3633 6/30/2015 H-3 5,169 +/- 225 5,058 +/- 223 5,114 +/- 158 Pass A5-2

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance AP-3822, 3823 7/1/2015 Be-7 0.075 +/- 0.011 0.068 +/- 0.012 0.072 +/- 0.008 Pass AP-3969, 3970 7/1/2015 Be-7 0.063 +/- 0.008 0.064 +/- 0.010 0.063 +/- 0.006 Pass WW-3632, 3633 7/6/2015 H-3 5,169 +/- 225 5,058 +/- 223 5,114 +/- 159 Pass W-4368, 4369 7/6/2015 Gr. Alpha 26.70 +/- 4.00 24.10 +/- 3.90 25.40 +/- 2.79 Pass W-4368, 4369 7/6/2015 Gr. Beta 34.62 +/- 2.10 33.30 +/- 2.02 33.96 +/- 1.46 Pass DW-60138, 60139 7/7/2015 Ra-226 0.07 +/- 0.04 0.11 +/- 0.05 0.09 +/- 0.03 Pass DW-60138, 60139 7/7/2015 Ra-228 1.04 +/- 0.41 1.15 +/- 0.47 1.10 +/- 0.31 Pass WW-4158, 4159 7/9/2015 H-3 138.8 +/- 82.4 174.0 +/- 84.1 156.4 +/- 58.9 Pass MI-2902, 2903 7/10/2015 K-40 1271 +/- 118 1308 +/- 115 1289 +/- 82 Pass SG-3533, 3534 7/10/2015 Gr. Alpha 238.0 +/- 8.2 249.5 +/- 8.5 243.8 +/- 5.9 Pass DW-60150, 60151 7/10/2015 Ra-226 1.53 +/- 0.16 1.49 +/- 0.12 1.51 +/- 0.10 Pass DW-60150, 60151 7/10/2015 Ra-228 2.68 +/- 0.68 1.89 +/- 0.62 2.29 +/- 0.46 Pass VE-3716, 3717 7/14/2015 K-40 3.85 +/- 0.33 3.71 +/- 0.31 3.78 +/- 0.23 Pass MI-3759, 3760 7/15/2015 K-40 1819 +/- 127 1764 +/- 140 1791 +/- 94 Pass MI-3759, 3760 7/15/2015 Sr-90 1.00 +/- 0.36 0.61 +/- 0.32 0.80 +/- 0.24 Pass AP-072115 7/21/2015 Gr. Beta 0.022 +/- 0.004 0.027 +/- 0.004 0.024 +/- 0.003 Pass VE-4053, 4054 7/21/2015 Be-7 0.52 +/- 0.15 0.49 +/- 0.11 0.50 +/- 0.09 Pass VE-4053, 4054 7/21/2015 K-40 8.00 +/- 0.42 7.61 +/- 0.31 7.81 +/- 0.26 Pass AP-4200, 4201 7/29/2015 Be-7 1.06 +/- 0.12 0.96 +/- 0.11 1.01 +/- 0.08 Pass AP-4200, 4201 7/29/2015 K-40 5.03 +/- 0.24 4.96 +/- 0.23 4.99 +/- 0.16 Pass W-4137, 4138 7/31/2015 Ra-226 0.58 +/- 0.13 0.45 +/- 0.14 0.52 +/- 0.10 Pass XWW-4431, 4432 8/5/2015 H-3 4,773 +/- 213 4,915 +/- 216 4,844 +/- 152 Pass SG-4305, 4306 8/6/2015 Ra-228 10.34 +/- 0.58 11.46 +/- 0.62 10.90 +/- 0.42 Pass AP-081015 8/10/2015 Gr. Beta 0.038 +/- 0.005 0.039 +/- 0.005 0.039 0.004 Pass AP-081115 8/11/2015 Gr. Beta 0.024 +/- 0.004 0.020 +/- 0.004 0.022 0.003 Pass VE-4452, 4453 8/11/2015 K-40 3.77 +/- 0.29 3.78 +/- 0.26 3.77 +/- 0.20 Pass AP-081715 8/17/2015 Gr. Beta 0.030 +/- 0.005 0.030 +/- 0.005 0.030 +/- 0.003 Pass DW-60195, 60196 8/17/2015 Ra-226 0.39 +/- 0.10 0.37 +/- 0.10 0.38 +/- 0.07 Pass DW-60195, 60196 8/17/2015 Ra-228 1.43 +/- 0.51 1.97 +/- 0.61 1.70 +/- 0.40 Pass DW-60198, 60199 8/17/2015 Gr. Alpha 2.93 +/- 0.94 2.11 +/- 0.96 2.52 +/- 0.67 Pass VE-4578, 4579 8/18/2015 K-40 4.14 +/- 0.25 4.32 +/- 0.24 4.23 +/- 0.17 Pass SW-4662, 4663 8/25/2015 H-3 351.3 +/- 89.8 415.6 +/- 92.8 383.4 +/- 64.6 Pass DW-60212, 60213 8/25/2015 Ra-226 0.09 +/- 0.07 0.10 +/- 0.08 0.10 +/- 0.05 Pass LW-4788, 4789 8/27/2015 Gr. Beta 0.97 +/- 0.51 1.68 +/- 0.59 1.32 +/- 0.39 Pass AP-083115 8/31/2015 Gr. Beta 0.032 +/- 0.005 0.031 +/- 0.005 0.031 +/- 0.003 Pass AP-4875, 4876 9/3/2015 Be-7 0.294 +/- 0.125 0.202 +/- 0.109 0.248 +/- 0.083 Pass VE-5083, 5084 9/14/2015 Be-7 0.47 +/- 0.23 0.56 +/- 0.19 0.52 +/- 0.15 Pass VE-5083, 5084 9/14/2015 K-40 6.20 +/- 0.51 6.36 +/- 0.50 6.28 +/- 0.36 Pass VE-5167, 5168 9/16/2015 Be-7 0.40 +/- 0.11 0.41 +/- 0.10 0.41 +/- 0.07 Pass VE-5167, 5168 9/16/2015 K-40 3.56 +/- 0.27 3.91 +/- 0.24 3.74 +/- 0.18 Pass BS-5188, 5189 9/16/2015 K-40 9.69 +/- 0.51 10.51 +/- 0.52 10.10 +/- 0.36 Pass F-5419, 5420 9/17/2015 K-40 3.48 +/- 0.47 3.49 +/- 0.56 3.49 +/- 0.36 Pass DW-60238, 60239 9/18/2015 Ra-226 1.93 +/- 0.23 2.31 +/- 0.26 2.12 +/- 0.17 Pass DW-60238, 60239 9/18/2015 Ra-228 4.44 +/- 0.78 5.61 +/- 0.84 5.03 +/- 0.57 Pass AP-092215A/B 9/22/2015 Gr. Beta 0.021 +/- 0.004 0.025 +/- 0.004 0.023 +/- 0.00 Pass WW-5398, 5399 9/22/2015 H-3 1,857 +/- 145 1,846 +/- 144 1,852 +/- 102 Pass AP-6007, 6008 9/28/2015 Be-7 0.08 +/- 0.01 0.08 +/- 0.01 0.08 +/- 0.01 Pass A5-3

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance XW-7490, 7491 9/29/2015 Ni-63 2,332 +/- 233 2,108 +/- 211 2,220 +/- 157 Pass WW-5377, 5378 9/30/2015 H-3 220.0 +/- 84.6 197.0 +/- 83.5 208.5 +/- 59.4 Pass AP-6028, 6029 9/30/2015 Be-7 0.073 +/- 0.009 0.083 +/- 0.012 0.078 +/- 0.007 Pass G-5461,2 10/1/2015 Be-7 2.02 +/- 0.32 1.98 +/- 0.25 2.00 +/- 0.20 Pass G-5461,2 10/1/2015 K-40 8.77 +/- 0.66 9.31 +/- 0.59 9.04 +/- 0.44 Pass SO-5482, 5483 10/1/2015 Ac-228 0.76 +/- 0.12 0.74 +/- 0.30 0.75 +/- 0.16 Pass SO-5482, 5483 10/1/2015 Bi-214 0.53 +/- 0.04 0.52 +/- 0.04 0.52 +/- 0.03 Pass SO-5482, 5483 10/1/2015 Cs-137 0.12 +/- 0.03 0.12 +/- 0.03 0.12 +/- 0.02 Pass SO-5482, 5483 10/1/2015 K-40 2.17 +/- 0.73 2.10 +/- 0.72 2.13 +/- 0.51 Pass SO-5482, 5483 10/1/2015 Pb-214 0.57 +/- 0.04 0.55 +/- 0.04 0.56 +/- 0.03 Pass SO-5482, 5483 10/1/2015 Ra-226 1.45 +/- 0.27 1.46 +/- 0.30 1.45 +/- 0.20 Pass SO-5482, 5483 10/1/2015 Tl-208 0.24 +/- 0.03 0.25 +/- 0.03 0.24 +/- 0.02 Pass WW-5524, 5525 10/5/2015 H-3 1,192 +/- 123 1,318 +/- 127 1,255 +/- 89 Pass AP-5881, 5882 10/5/2015 Be-7 0.078 +/- 0.008 0.085 +/- 0.011 0.082 +/- 0.007 Pass AP-5881, 5882 10/5/2015 K-40 0.009 +/- 0.004 0.010 +/- 0.006 0.010 +/- 0.004 Pass SG-6400,1 10/5/2015 Gr. Alpha 19.09 +/- 3.14 19.45 +/- 3.25 19.27 +/- 2.26 Pass SG-6400,1 10/5/2015 Gr. Beta 31.36 +/- 2.08 29.80 +/- 2.13 30.58 +/- 1.49 Pass VE-5923, 5924 10/12/2015 K-40 4.29 +/- 0.29 4.13 +/- 0.33 4.21 +/- 0.22 Pass SS-5818, 5819 10/14/2015 Ac-228 0.20 +/- 0.06 0.24 +/- 0.06 0.22 +/- 0.04 Pass SS-5818, 5819 10/14/2015 Cs-137 0.03 +/- 0.02 0.02 +/- 0.01 0.03 +/- 0.01 Pass SS-5818, 5819 10/14/2015 Gr. Beta 8.10 +/- 0.87 8.08 +/- 0.96 8.09 +/- 0.65 Pass SS-5818, 5819 10/14/2015 Pb-212 0.19 +/- 0.03 0.17 +/- 0.02 0.18 +/- 0.02 Pass SS-5818, 5819 10/14/2015 Ra-226 0.47 +/- 0.24 0.45 +/- 0.19 0.46 +/- 0.15 Pass SS-5818, 5819 10/14/2015 Tl-208 0.06 +/- 0.02 0.06 +/- 0.02 0.06 +/- 0.01 Pass DW-60251, 60252 10/15/2015 Ra-226 0.56 +/- 0.12 0.50 +/- 0.08 0.53 +/- 0.07 Pass DW-60251, 60252 10/15/2015 Ra-228 0.79 +/- 0.48 1.16 +/- 0.59 0.98 +/- 0.38 Pass SO-5944, 5945 10/21/2015 Ac-228 1.08 +/- 0.15 1.14 +/- 0.15 1.11 +/- 0.10 Pass SO-5944, 5945 10/21/2015 Bi-214 0.89 +/- 0.08 0.82 +/- 0.06 0.85 +/- 0.05 Pass SO-5944, 5945 10/21/2015 Cs-137 0.06 +/- 0.02 0.08 +/- 0.03 0.07 +/- 0.02 Pass SO-5944, 5945 10/21/2015 Pb-212 1.06 +/- 0.06 0.99 +/- 0.05 1.03 +/- 0.04 Pass SO-5944, 5945 10/21/2015 Pb-214 1.00 +/- 0.09 0.89 +/- 0.06 0.95 +/- 0.05 Pass SO-5944, 5945 10/21/2015 Ra-226 2.13 +/- 0.43 2.16 +/- 0.37 2.14 +/- 0.28 Pass SO-5944, 5945 10/21/2015 Tl-208 0.36 +/- 0.04 0.34 +/- 0.04 0.35 +/- 0.03 Pass S-6175, 6176 10/23/2015 K-40 16.86 +/- 1.92 14.28 +/- 1.66 15.57 +/- 1.27 Pass XWW-6196, 6197 10/26/2015 H-3 2,856 +/- 170 2,815 +/- 169 2,836 +/- 120 Pass SO-6259, 6260 10/28/2015 Ac-228 0.60 +/- 0.10 0.53 +/- 0.08 0.57 +/- 0.07 Pass SO-6259, 6260 10/28/2015 Bi-214 0.40 +/- 0.06 0.50 +/- 0.05 0.45 +/- 0.04 Pass SO-6259, 6260 10/28/2015 Cs-137 0.17 +/- 0.03 0.19 +/- 0.03 0.18 +/- 0.02 Pass SO-6259, 6260 10/28/2015 Gr. Beta 21.6 +/- 1.1 23.36 +/- 1.21 22.48 +/- 0.82 Pass SO-6259, 6260 10/28/2015 Pb-212 0.53 +/- 0.04 0.49 +/- 0.04 0.51 +/- 0.03 Pass SO-6259, 6260 10/28/2015 Tl-208 0.16 +/- 0.03 0.19 +/- 0.04 0.18 +/- 0.02 Pass A5-4

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance LW-6280, 6281 10/29/2015 Gr. Beta 2.03 +/- 0.91 1.97 +/- 0.97 2.00 +/- 0.67 Pass MI-6484, 6485 11/11/2015 K-40 1,384 +/- 82 1,432 +/- 89 1,408 +/- 60 Pass SO-6841, 6842 11/24/2015 Cs-137 0.18 +/- 0.03 0.16 +/- 0.03 0.17 +/- 0.02 Pass SO-6841, 6842 11/24/2015 K-40 13.62 +/- 0.76 13.67 +/- 0.69 13.64 +/- 0.51 Pass WW-6978, 6979 11/30/2015 H-3 569.0 +/- 97.7 480.3 +/- 93.9 524.7 +/- 67.8 Pass SW-6936, 6937 12/10/2015 H-3 151.9 +/- 80.0 176.2 +/- 81.2 164.0 +/- 57.0 Pass SW-7017, 7018 12/10/2015 H-3 584.3 +/- 98.7 451.6 +/- 93.9 518.0 +/- 68.1 Pass LW-7020, 7021 12/10/2015 H-3 236.9 +/- 84.2 285.6 +/- 86.5 261.2 +/- 60.3 Pass AP-7351, 7352 12/29/2015 Be-7 0.099 +/- 0.020 0.084 +/- 0.018 0.091 +/- 0.014 Pass AP-7414, 7415 12/30/2015 Be-7 0.049 +/- 0.013 0.048 +/- 0.011 0.048 +/- 0.008 Pass Note: Duplicate analyses are performed on every twentieth sample received in-house. Results are not listed for those analyses with activities that measure below the LLD.

a Results are reported in units of pCi/L, except for air filters (pCi/Filter or pCi/m3), food products, vegetation, soil, sediment (pCi/g).

A5-5

TABLE A-6. Department of Energy's Mixed Analyte Performance Evaluation Program (MAPEP).

Concentration a Known Control Lab Code b Date Analysis Laboratory result Activity Limits c Acceptance MASO-975 2/1/2015 Ni-63 341 +/- 18 448 314 - 582 Pass MASO-975 2/1/2015 Sr-90 523 +/- 12 653 457 - 849 Pass MASO-975 2/1/2015 Tc-99 614 +/- 12 867 607 - 1,127 Pass MASO-975 2/1/2015 Cs-134 533 +/-6 678 475 - 881 Pass MASO-975 2/1/2015 Cs-137 0.8 +/- 2.5 0.0 NA c Pass MASO-975 2/1/2015 Co-57 0.5 +/- 1.0 0.0 NA c Pass MASO-975 2/1/2015 Co-60 741 +/-8 817 572 - 1,062 Pass MASO-975 2/1/2015 Mn-54 1,153 +/-9 1,198 839 - 1,557 Pass MASO-975 2/1/2015 Zn-65 892 +/- 18 1064 745 - 1,383 Pass MAW-969 2/1/2015 Am-241 0.650 +/- 0.078 0.654 0.458 - 0.850 Pass MAW-969 2/1/2015 Cs-134 21.1 +/- 0.3 23.5 16.5 - 30.6 Pass MAW-969 2/1/2015 Cs-137 19.6 +/- 0.3 19.1 13.4 - 24.8 Pass d

MAW-969 2/1/2015 Co-57 10.2 +/- 0.4 29.9 20.9 - 38.9 Fail MAW-969 2/1/2015 Co-60 0.02 +/- 0.05 0.00 NA c Pass MAW-969 2/1/2015 H-3 569 +/- 13 563 394 - 732 Pass MAW-969 2/1/2015 Fe-55 6.00 +/- 6.60 6.88 4.82 - 8.94 Pass MAW-969 2/1/2015 Mn-54 0.02 +/- 0.07 0.00 NA c Pass MAW-969 2/1/2015 Ni-63 2.9 +/- 3.0 0.00 NA c Pass MAW-969 2/1/2015 Zn-65 16.5 +/- 0.9 18.3 12.8 - 23.8 Pass MAW-969 2/1/2015 Tc-99 3.40 +/- 0.60 3.18 2.23 - 4.13 Pass MAW-969 2/1/2015 Pu-238 0.02 +/- 0.03 0.01 NA e Pass MAW-969 2/1/2015 Pu-239/240 0.81 +/- 0.10 0.83 0.58 - 1.08 Pass MAW-969 2/1/2015 U-233/234 0.150 +/- 0.040 0.148 0.104 - 0.192 Pass MAW-969 2/1/2015 U-238 0.84 +/- 0.09 0.97 0.68 - 1.26 Pass MAW-969 2/1/2015 Sr-90 9.40 +/- 1.30 9.48 6.64 - 12.32 Pass MAW-950 2/1/2015 Gr. Alpha 0.66 +/- 0.05 1.07 0.32 - 1.81 Pass MAW-950 2/1/2015 Gr. Beta 2.72 +/- 0.06 2.79 1.40 - 4.19 Pass MAW-947 2/1/2015 I-129 1.26 +/- 0.12 1.49 1.04 - 1.94 Pass MAAP-978 2/1/2015 Am-241 0.069 +/- 0.200 0.068 0.048 - 0.089 Pass MAAP-978 2/1/2015 Cs-134 1.00 +/- 0.04 1.15 0.81 - 1.50 Pass MAAP-978 2/1/2015 Cs-137 0.004 +/- 0.023 0.00 NA c Pass f

MAAP-978 2/1/2015 Co-57 0.04 +/- 0.04 1.51 1.06 - 1.96 Fail MAAP-978 2/1/2015 Co-60 0.01 +/- 0.02 0.00 NA c Pass MAAP-978 2/1/2015 Mn-54 1.11 +/- 0.08 1.02 0.71 - 1.33 Pass MAAP-978 2/1/2015 Zn-65 0.83 +/- 0.10 0.83 0.58 - 1.08 Pass MAAP-978 2/1/2015 Pu-238 -0.003 +/- 0.010 0.000 NA c Pass MAAP-978 2/1/2015 Pu-239/240 0.090 +/- 0.022 0.085 0.059 - 0.110 Pass MAAP-978 2/1/2015 U-233/234 0.020 +/- 0.010 0.016 0.011 - 0.020 Pass MAAP-978 2/1/2015 U-238 0.073 +/- 0.018 0.099 0.069 - 0.129 Pass A6-1

TABLE A-6. Department of Energy's Mixed Analyte Performance Evaluation Program (MAPEP).

Concentration a Known Control Lab Code b Date Analysis Laboratory result Activity Limits c Acceptance MAAP-981 2/1/2015 Sr-89 38.1 +/- 1.0 47.5 33.3 - 61.8 Pass MAAP-981 2/1/2015 Sr-90 1.22 +/- 0.13 1.06 0.74 - 1.38 Pass MAAP-984 2/1/2015 Gr. Alpha 0.59 +/- 0.06 1.77 0.53 - 3.01 Pass MAAP-984 2/1/2015 Gr. Beta 0.95 +/- 0.07 0.75 0.38 - 1.13 Pass MAVE-972 2/1/2015 Cs-134 6.98 +/- 0.13 7.32 5.12 - 9.52 Pass MAVE-972 2/1/2015 Cs-137 9.73 +/- 0.21 9.18 6.43 - 11.93 Pass MAVE-972 2/1/2015 Co-57 0.01 +/- 0.04 0.00 NA c Pass MAVE-972 2/1/2015 Co-60 3.89 +/- 0.20 5.55 3.89 - 7.22 Pass MAVE-972 2/1/2015 Mn-54 0.04 +/- 0.07 0.00 NA c Pass MAVE-972 2/1/2015 Zn-65 0.09 +/- 0.12 0.00 NA c Pass MAAP-978 2/1/2015 Pu-238 -0.003 +/- 0.010 0.000 NA c Pass MAAP-978 2/1/2015 Pu-239/240 0.090 +/- 0.022 0.085 0.059 - 0.110 Pass MAAP-978 2/1/2015 U-233/234 0.020 +/- 0.010 0.016 0.011 - 0.020 Pass MAAP-978 2/1/2015 U-238 0.073 +/- 0.018 0.099 0.069 - 0.129 Pass MAAP-981 2/1/2015 Sr-89 38.1 +/- 1.0 47.5 33.3 - 61.8 Pass MAAP-981 2/1/2015 Sr-90 1.22 +/- 0.13 1.06 0.74 - 1.38 Pass MAAP-984 2/1/2015 Gr. Alpha 0.59 +/- 0.06 1.77 0.53 - 3.01 Pass MAAP-984 2/1/2015 Gr. Beta 0.95 +/- 0.07 0.75 0.38 - 1.13 Pass MAVE-972 2/1/2015 Cs-134 6.98 +/- 0.13 7.32 5.12 - 9.52 Pass MAVE-972 2/1/2015 Cs-137 9.73 +/- 0.21 9.18 6.43 - 11.93 Pass MAVE-972 2/1/2015 Co-57 0.01 +/- 0.04 0.00 NA c Pass MAVE-972 2/1/2015 Co-60 3.89 +/- 0.20 5.55 3.89 - 7.22 Pass MAVE-972 2/1/2015 Mn-54 0.04 +/- 0.07 0.00 NA c Pass MAVE-972 2/1/2015 Zn-65 0.09 +/- 0.12 0.00 NA c Pass MASO-4903 8/1/2015 Ni-63 556 +/- 18 682 477 - 887 Pass MASO-4903 g 8/1/2015 Sr-90 231 +/-7 425 298 - 553 Fail MASO-4903 g 8/1/2015 Sr-90 352 +/- 10 425 298 - 553 Pass MASO-4903 h 8/1/2015 Tc-99 411 +/- 11 631 442 - 820 Fail MASO-4903 8/1/2015 Cs-134 833 +/- 10 1,010 707 - 1,313 Pass MASO-4903 8/1/2015 Cs-137 808 +/- 11 809.00 566 - 1,052 Pass MASO-4903 8/1/2015 Co-57 1,052 +/- 10 1,180 826 - 1,534 Pass MASO-4903 8/1/2015 Co-60 2 +/-2 1.3 NA e Pass MASO-4903 8/1/2015 Mn-54 1,331 +/- 13 1,340 938 - 1,742 Pass MASO-4903 8/1/2015 Zn-65 686 +/- 15 662 463 - 861 Pass A6-2

TABLE A-6. Department of Energy's Mixed Analyte Performance Evaluation Program (MAPEP).

Concentration a Known Control Lab Code b Date Analysis Laboratory result Activity Limits c Acceptance MAW-5007 8/1/2015 Cs-134 16.7 +/- 0.4 23.1 16.2 - 30.0 Pass MAW-5007 8/1/2015 Cs-137 -0.4 +/- 0.1 0.0 NA c Pass MAW-5007 8/1/2015 Co-57 21.8 +/- 0.4 20.8 14.6 - 27.0 Pass MAW-5007 8/1/2015 Co-60 17.3 +/- 0.3 17.1 12.0 - 22.2 Pass MAW-5007 8/1/2015 H-3 227.5 +/- 8.9 216.0 151.0 - 281.0 Pass MAW-5007 i 8/1/2015 Fe-55 4.2 +/- 14.1 13.1 9.2 - 17.0 Fail MAW-5007 8/1/2015 Mn-54 16.6 +/- 0.5 15.6 10.9 - 20.3 Pass MAW-5007 8/1/2015 Ni-63 9.1 +/- 2.6 8.6 6.0 - 11.1 Pass MAW-5007 8/1/2015 Zn-65 15.5 +/- 0.9 13.9 9.7 - 18.1 Pass MAW-5007 8/1/2015 Tc-99 6.80 +/- 0.60 7.19 5.03 - 9.35 Pass MAW-5007 8/1/2015 Sr-90 4.80 +/- 0.50 4.80 3.36 - 6.24 Pass MAW-5007 8/1/2015 Gr. Alpha 0.41 +/- 0.04 0.43 0.13 - 0.73 Pass MAW-5007 8/1/2015 Gr. Beta 3.45 +/- 0.07 3.52 1.76 - 5.28 Pass MAW-5007 8/1/2015 I-129 1.42 +/- 0.13 1.49 1.04 - 1.94 Pass MAAP-4911 8/1/2015 Sr-89 3.55 +/- 0.67 3.98 2.79 - 5.17 Pass MAAP-4911 8/1/2015 Sr-90 0.94 +/- 0.16 1.05 0.74 - 1.37 Pass MAAP-4907 8/1/2015 Gr. Alpha 0.30 +/- 0.04 0.90 0.27 - 1.53 Pass MAAP-4907 8/1/2015 Gr. Beta 1.85 +/- 0.09 1.56 0.78 - 2.34 Pass MAVE-4901 8/1/2015 Cs-134 5.56 +/- 0.16 5.80 4.06 - 7.54 Pass MAVE-4901 8/1/2015 Cs-137 -0.02 +/- 0.06 0.00 NA c Pass MAVE-4901 8/1/2015 Co-57 7.74 +/- 0.18 6.62 4.63 - 8.61 Pass MAVE-4901 8/1/2015 Co-60 4.84 +/- 0.15 4.56 3.19 - 5.93 Pass MAVE-4901 8/1/2015 Mn-54 8.25 +/- 0.25 7.68 5.38 - 9.98 Pass MAVE-4901 8/1/2015 Zn-65 5.78 +/- 0.29 5.46 3.82 - 7.10 Pass a

Results are reported in units of Bq/kg (soil), Bq/L (water) or Bq/total sample (filters, vegetation).

b Laboratory codes as follows: MAW (water), MAAP (air filter), MASO (soil), MAVE (vegetation).

c MAPEP results are presented as the known values and expected laboratory precision (1 sigma, 1 determination) and control limits as defined by the MAPEP. A known value of "zero" indicates an analysis was included in the testing series as a "false positive". MAPEP does not provide control limits.

d Lab result was 27.84. Data entry error resulted in a non-acceptable result.

e Provided in the series for "sensitivity evaluation". MAPEP does not provide control limits.

f Lab result was 1.58. Data entry error resulted in a non-acceptable result.

g The incomplete separation of calcium from strontium caused a failed low result. The result of reanalysis acceptable.

h The complex sample matrix is interfering with yield calculations causing a failed low result. An investigation is in process to determine a more reliable yield determination.

I The known activity was below the routine laboratory detection limits for the available aliquot fraction.

A6-3

TABLE A-7. Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA)a.

Concentration (pCi/L) b b

Lab Code Date Analysis Laboratory ERA Control Result c Result d Limits Acceptance ERAP-1091 3/16/2015 Am-241 46.8 +/- 2.2 49.8 30.7 - 67.4 Pass ERAP-1091 3/16/2015 Co-60 85.1 +/- 2.9 79.1 61.2 - 98.8 Pass ERAP-1091 3/16/2015 Cs-134 825.6 +/- 34.7 909.0 578.0 - 1,130.0 Pass ERAP-1091 3/16/2015 Cs-137 1,312 +/- 12 1,170 879 - 1,540 Pass ERAP-1091 3/16/2015 Fe-55 760.6 +/- 48.2 836.0 259.0 - 1630.0 Pass ERAP-1091 3/16/2015 Mn-54 <2.7 <50 0.0 - 50.0 Pass ERAP-1091 3/16/2015 Pu-238 51.0 +/- 3.9 52.1 35.7 - 68.5 Pass ERAP-1091 3/16/2015 Pu-239/240 38.3 +/- 1.3 40.3 29.20 - 52.70 Pass ERAP-1091 3/16/2015 Sr-90 95.3 +/- 11.4 96.6 47.2 - 145.0 Pass ERAP-1091 3/16/2015 U-233/234 29.0 +/- 1.2 34.3 21.3 - 51.7 Pass ERAP-1091 3/16/2015 U-238 31.0 +/- 1.1 34.0 22.0 - 47.0 Pass ERAP-1091 3/16/2015 Zn-65 1099.3 +/- 146.5 986.0 706.0 - 1360.0 Pass ERAP-1094 3/16/2015 Gr. Alpha 73.7 +/- 0.7 62.2 20.8 - 96.6 Pass ERAP-1094 3/16/2015 Gr. Beta 69.6 +/- 0.8 58.4 36.9 - 85.1 Pass ERSO-1098 3/16/2015 Am-241 1571.8 +/- 209.6 1,500 878 - 1,950 Pass ERSO-1098 3/16/2015 Ac-228 1198.8 +/- 140.4 1,250 802 - 1,730 Pass ERSO-1098 3/16/2015 Bi-212 1420.1 +/- 455.7 1,780 474 - 2,620 Pass ERSO-1098 3/16/2015 Bi-214 3466.9 +/- 86.9 4,430 2,670 - 6,380 Pass ERSO-1098 3/16/2015 Co-60 1779.8 +/- 41.0 1,880 1,270 - 2,590 Pass ERSO-1098 3/16/2015 Cs-134 5204.6 +/- 64.5 6,390 4,180 - 7,680 Pass ERSO-1098 3/16/2015 Cs-137 1417.1 +/- 41.9 1,490 1,140 - 1,920 Pass ERSO-1098 3/16/2015 K-40 10,597 +/- 380 10,700 7,810 - 14,400 Pass ERSO-1098 3/16/2015 Mn-54 <62.2 < 1000 0.0 - 1,000 Pass ERSO-1098 3/16/2015 Pb-212 1,032 +/- 41 1,230 806 - 1,710 Pass ERSO-1098 3/16/2015 Pb-214 3,629 +/- 93 4,530 2,640 - 6,760 Pass ERSO-1098 3/16/2015 Pu-238 942.9 +/- 128.8 998.0 600.0 - 1,380.0 Pass ERSO-1098 3/16/2015 Pu-239/240 1,185 +/- 140 1,210 791 - 1,670 Pass ERSO-1098 3/16/2015 Sr-90 1,724 +/- 125 1,940 740 - 3,060 Pass ERSO-1098 3/16/2015 Th-234 3,666 +/- 948 3,890 1,230 - 7,320 Pass ERSO-1098 3/16/2015 U-233/234 3,474 +/- 226 3,920 2,400 - 5,020 Pass ERSO-1098 3/16/2015 U-238 3,620 +/- 232 3,890 2,410 - 4,930 Pass ERSO-1098 3/16/2015 Zn-65 7,362 +/- 145 7,130 5,680 - 9,470 Pass ERW-1095 3/16/2015 Gr. Alpha 93.4 +/- 11.5 119.0 42.2 - 184.0 Pass ERW-1095 3/16/2015 Gr. Beta 145.2 +/- 4.8 158.0 90.5 - 234.0 Pass ERW-1110 3/16/2015 H-3 10,573 +/- 78 10,300 6,900 - 14,700 Pass ERVE-1100 3/16/2015 Am-241 4,537 +/- 266 4,340 2,650 - 5,770 Pass ERVE-1100 3/16/2015 Cm-244 1,338 +/- 146 1,360 666 - 2,120 Pass A7-1

TABLE A-7. Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA)a.

Concentration (pCi/L) b b

Lab Code Date Analysis Laboratory ERA Control Result c Result d Limits Acceptance ERVE-1100 e 3/16/2015 Co-60 1,030 +/- 29 1,540 1,060 - 2,150 Fail ERVE-1100 f 3/16/2015 Co-60 1,684 +/- 48 1,540 1,060 - 2,150 Pass ERVE-1100 e 3/16/2015 Cs-134 1,615 +/- 27 2,650 1,700 - 3,440 Fail ERVE-1100 f 3/16/2015 Cs-134 2,554 +/- 49 2,650 1,700 - 3,440 Pass ERVE-1100 e 3/16/2015 Cs-137 1,248 +/- 29 1,810 1,310 - 2,520 Fail ERVE-1100 f 3/16/2015 Cs-137 2,078 +/- 68 1,810 1,310 - 2,520 Pass ERVE-1100 e 3/16/2015 K-40 22,037 +/- 463 30,900 22,300 - 43,400 Fail ERVE-1100 f 3/16/2015 K-40 34,895 +/- 764 30,900 22,300 - 43,400 Pass ERVE-1100 e 3/16/2015 Mn-54 <13.8 <300 0.0 - 300.0 Pass ERVE-1100 f 3/16/2015 Mn-54 <24.4 <300 0.0 - 300.0 Pass ERVE-1100 3/16/2015 Pu-238 3,232 +/- 232 3,680 2,190 - 5,040 Pass ERVE-1100 3/16/2015 Pu-239/240 3,606 +/- 240 4,180 2,570 - 5,760 Pass ERVE-1100 3/16/2015 Sr-90 6,023 +/- 326 6,590 3,760 - 8,740 Pass ERVE-1100 3/16/2015 U-233/234 2,653 +/- 153 3,150 2,070 - 4,050 Pass ERVE-1100 3/16/2015 U-238 2,717 +/- 163 3,130 2,090 - 3,980 Pass ERVE-1100 e 3/16/2015 Zn-65 <94.6 1,090 786 - 1,530 Fail ERVE-1100 f 3/16/2015 Zn-65 1,306 +/- 75 1,090 786 - 1,530 Pass ERW-1103 3/16/2015 Am-241 47.1 +/- 4.0 46.0 31.0 - 61.7 Pass ERW-1103 3/16/2015 Co-60 1,217 +/- 17 1,250 1,090 - 1,460 Pass ERW-1103 3/16/2015 Cs-134 1,121 +/- 18 1,260 925 - 1,450 Pass ERW-1103 3/16/2015 Cs-137 1,332 +/- 31 1,360 1,150 - 1,630 Pass ERW-1103 3/16/2015 Mn-54 <3.7 <100 0.00 - 100.00 Pass ERW-1103 3/16/2015 Pu-238 54.5 +/- 1.6 72.4 53.6 - 90.1 Pass ERW-1103 g 3/16/2015 Pu-239/240 140.2 +/- 7.8 184.0 143.0 - 232.0 Fail ERW-3742 h 9/27/2012 Pu-239/240 89.3 +/- 4.9 97.7 66.6 - 108.0 Pass ERW-1103 3/16/2015 U-233/234 56.5 +/- 6.4 61.8 46.4 - 79.7 Pass ERW-1103 3/16/2015 U-238 58.4 +/- 5.8 61.3 46.7 - 75.2 Pass ERW-1103 3/16/2015 Zn-65 1,191 +/- 136 1,180 984 - 1,490 Pass ERW-1103 3/16/2015 Fe-55 1,149 +/- 144 1,070 638 - 1,450 Pass ERW-1103 3/16/2015 Sr-90 860.0 +/- 37.0 912.0 594.0 - 1,210.0 Pass a

Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the crosscheck program for proficiency testing administered by Environmental Resources Associates, serving as a replacement for studies conducted previously by the Environmental Measurements Laboratory Quality Assessment Program (EML).

b Laboratory codes as follows: ERW (water), ERAP (air filter), ERSO (soil), ERVE (vegetation). Results are reported in units of pCi/L, except for air filters (pCi/Filter), vegetation and soil (pCi/kg).

c Unless otherwise indicated, the laboratory result is given as the mean +/- standard deviation for three determinations.

d Results are presented as the known values, expected laboratory precision (1 sigma, 1 determination) and control limits as provided by ERA. A known value of "zero" indicates an analysis was included in the testing series as a "false positive". Control limits are not provided.

e Technician error weighing sample caused submitted gamma results to be understated and outside the control limits.(low) f The result of reanalysis with the correct sample volume (Compare to original result, footnoted "e" above).

g The results of reanalysis were outside the control limits (low).

h Sample ERW-3742 was ordered from ERA to determine why ERW-1103 results for Pu-239 were outside the acceptable range.

The results for ERW-3742 were acceptable. No reason for the unacceptable results for ERW-3742 was determined.

A7-2

APPENDIX B. DATA REPORTING CONVENTIONS Data Reporting Conventions 1.0. All activities, except gross alpha and gross beta, are decay corrected to collection time or the end of the collection period.

2.0. Single Measurements Each single measurement is reported as follows: x+/-s where: x = value of the measurement; s = 2s counting uncertainty (corresponding to the 95% confidence level).

In cases where the activity is less than the lower limit of detection L, it is reported as: < L, where L = the lower limit of detection based on 4.66s uncertainty for a background sample.

3.0. Duplicate analyses If duplicate analyses are reported, the convention is as follows. :

3.1 Individual results: For two analysis results; x 1 +/- s 1 and x 2 +/- s 2 Reported result: x +/- s; where x = (1/2) (x 1 + x 2 ) and s = (1/2) s12 + s 22 3.2. Individual results: < L1 , < L2 Reported result: < L, where L = lower of L 1 and L 2 3.3. Individual results: x +/- s, < L Reported result: x +/- s if x L; < L otherwise.

4.0. Computation of Averages and Standard Deviations 4.1 Averages and standard deviations listed in the tables are computed from all of the individual measurements over the period averaged; for example, an annual standard deviation would not be the average of quarterly standard deviations. The average and standard deviation s of a set of n numbers x 1 , x 2 . . . x n are defined as follows:

1 (x- )2

=n x s= n-1 4.2 Values below the highest lower limit of detection are not included in the average.

4.3 If all values in the averaging group are less than the highest LLD, the highest LLD is reported.

4.4 If all but one of the values are less than the highest LLD, the single value x and associated two sigma error is reported.

4.5 In rounding off, the following rules are followed:

4.5.1. If the number following those to be retained is less than 5, the number is dropped, and the retained numbers are kept unchanged. As an example, 11.443 is rounded off to 11.44.

4.5.2. If the number following those to be retained is equal to or greater than 5, the number is dropped and the last retained number is raised by 1. As an example, 11.445 is rounded off to 11.45.

B-1

Appendix C. NON-RADIOLOGICAL MONITORING PROGRAM 1.0. Introduction Union Electric Company Callaway Plant, d.b.a. Ameren Missouri Callaway Energy Center, in accordance with federal regulations and a desire to maintain the quality of the local environment around Callaway Plant has implemented an Environmental Protection Plan, (EPP) contained in Appendix B of the Callaway Plant Operating License.

The objective of the EPP is to provide for protection of non-radiological environmental values during operation of the Callaway Plant.

This report describes the conduct of the EPP for the Callaway Plant during 2015.

2.0. Unusual or Important Events No unusual or important events reportable under the EPP Section 4.1 were identified during 2015.

3.0. EPP Non-compliances During 2015, there were no non-compliances with the EPP.

4.0. Nonroutine Reports There were no nonroutine reports submitted in accordance with the EPP, Section 5.4.2 in 2015.

C-1

5.0. Plant Design and Operation Environmental Evaluations.

This section lists all changes in the plant design, operation, tests or experiments installed during 2015, which could have involved a potentially significant unreviewed environmental question in accordance with section 3.1 of Appendix B.

During 2015, three plant changes could have involved a potentially significant unreviewed environmental question. The interpretations and conclusions regarding these plant changes along with a description of the change and activity are presented below.

MP 13-0031, MP 14-0015, MP 14-0016, MP 14-0017 (Rev 2) - Permanent Storage of Major Equipment in the Hardened Storage Facility for Emergency Response Description of Change:

Modifications MP 13-0031, MP 14-0015, MP 14-0016, and MP 14-0017 include permanent storage of emergency response equipment in the hardened storage facility at Callaway Energy Center. This evaluation includes a review of the requirements for storage and operation of major equipment to be permanently stored in this facility to respond to a beyond design basis external event (BDBEE) accident.

Major equipment to be stored in the hardened storage facility includes:

1) 2 - portable emergency generators - Caterpillar 500KWe, trailer mounted with a double walled 600 gallon fuel tank

2) 2 - John Deere Model 4045 portable diesel driven pumps, each with a 100 gallon dual walled fuel tank

3) 2 - John Deere Model 6090 portable diesel driven pumps, each with a 245 gallon dual walled fuel tank

4) 1 - Refueling trailer to contain a maximum volume of 1500 gallons diesel fuel

5) 1 - 300 Series Transformer (XPG322) containing 261 gallons of non-PCB mineral oil to be located between the hardened storage facility and the ISFSI support building Evaluation of Change:

As part of the Final Environmental Evaluation, both the ER and FES-OL were reviewed for any previously evaluated adverse environmental impacts and any new adverse environmental impacts not previously evaluated. No adverse environmental impacts were identified. The construction of this facility was evaluated in a separate final environmental evaluation reported in the 2014 report. Because this equipment is to be permanently stored in this facility, an application for an air construction permit was submitted under the Part 70 air program.

Approval was granted from the Missouri Department of Natural Resources Air Program to C-2

permanently house this equipment on March 23, 2015 indicating no construction permit is required. This change does not involve an un-reviewed environmental question. Therefore, NRC approval is not required for this portion of the construction project.

MP 14-0012 - Construction of two additional Water Treatment Plant Sedimentation Lagoons #5 & #6 Description of Change:

MP 14-0012 covers the construction of two additional sedimentation lagoons to store Missouri River solids removed by the water treatment plant. There are currently 2 sedimentation lagoons in service (lagoon #3 & #4) along with 2 wetlands (lagoon #1 & #2) for polishing the sewage treatment effluent from the outlet of a three-cell sewage stabilization pond system. The current sedimentation lagoons are approaching design capacity. The new lagoons will occupy an area adjacent to existing lagoons #3 & #4, measuring approximately 1200 feet by 600 feet and with the bottom elevations near 820 feet. Effluent from the lagoons will tie into the existing piping, utilize the current NPDES outfall (Outfall 003), and will be recycled back to the head of the water treatment plant as it has for more than 16 years.

Evaluation of Change:

As part of the Final Environmental Evaluation, both the ER and FES-OL were reviewed for any previously evaluated adverse environmental impacts and any new adverse environmental impacts not previously evaluated. No adverse environmental impacts were identified. Because the new sedimentation lagoons are water treatment devices as well as being earthen basins, a construction permit was required by the Missouri Department of Natural Resources Water Program prior to beginning construction. Construction Permit # CP0001707 was obtained on June 3, 2015. In addition, a land disturbance permit was obtained as greater than one acre was disturbed during this construction. The construction area for the new sedimentation lagoons is located on Callaway plant property and was previously evaluated for cultural resources with no cultural resources identified. During construction, storm water runoff from this area was controlled using Best Management Practices (BMPs) to minimize sediment runoff.

This change does not involve an un-reviewed environmental question and NRC approval was not required.

RFR 201408691 - Use of BULAB 8031 as a Dispersant in the Circulating/Service Water, Essential Service Water (ESW), and Fire Water Systems Description of Change:

This change involves the use of BULAB 8031 as a dispersant for the circulating/service water system, essential service water system and fire water system as BULAB 8006 (used in the past) is being discontinued and is no longer available.

C-3

Evaluation of Change:

As part of the Final Environmental Evaluation, both the ER and FES-OL were reviewed for any previously evaluated adverse environmental impacts and any new adverse environmental impacts not previously evaluated. No adverse environmental impacts were identified. Missouri DNR approval or permits were not required as a similar dispersant (BULAB 8006) was previously used in these systems. Both products contain the same biopenetrant DMAD which will be maintained at the same concentration. BULAB 8031 contains a slightly different anionic surfactant. Aquatic toxicity data was reviewed for both BULAB products and both products indicated a similar 48-hour LC50. Both products have been previously reviewed and approved by the Missouri DNR for use at Callaway and there intended use in these systems should have no adverse effect on the environment.

This evaluation concluded that this change to utilize BULAB 8031 as a dispersant in these systems does not involve an un-reviewed environmental question and NRC approval was not required.

C-4

APPENDIX D Sampling Location Maps D-1

Figure D-1. Radiological Environmental Sampling Locations 1, 2, 3, mile radius from site location.

D-2

Figure D-2. Radiological Environmental Sampling Locations 3, 4, 5, 6 mile radius from site location.

D-3

Figure D-3. Radiological Environmental Sampling Locations 5, 10, 15 mile radius from site location.

D-4

Figure D-4a. Groundwater Monitoring Wells, Owner Controlled Area and Vicinity.

Note: Not all wells shown are included in the REMP. Refer to Table 5.1 for a listing of monitored wells.

D-5

Figure D-4b. Groundwater Monitoring Wells, Northern Area.

D-6

Figure D-4c. Groundwater Monitoring Wells, Central Area.

D-7

Figure D-4d. Groundwater Monitoring Wells, Alluvial Area.

D-8

AMEREN MISSOURI CALLAWAY ENERGY CENTER FULTON, MISSOURI Docket Numbers 50-483 and 72-1045 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT to THE UNITED STATES NUCLEAR REGULATORY COMMISSION Part II January 1 to December 31, 2015 Prepared by ENVIRONMENTAL, Inc.

Midwest Laboratory and Ameren Missouri Callaway Energy Center Submitted by UNION ELECTRIC CO.

dba Ameren Missouri Project No. 8036

TABLE OF CONTENTS Section Page List of Tables ............................................................................................................... iii 1.0 Introduction................................................................................................................... iv 2.0 Data Tables ................................................................................................................... v ii

LIST OF TABLES No. Title Page 1 Airborne particulates and charcoal cartridges, analysis for gamma-emitting isotopes, and iodine-131 ....................................................................................... 1-1 2 Milk, analysis for iodine-131 and gamma emitting isotopes................................................ 2-1 3 Vegetation, analysis for iodine-131 and gamma emitting isotopes ..................................... 3-1 4 Non-food Crops, analysis for tritium and gamma emitting isotopes.................................... 4-1 5 Soil, analysis for gamma-emitting isotopes......................................................................... 5-1 6 Surface water, analysis for tritium and gamma-emitting isotopes....................................... 6-1 7 Surface water (Ponds), analysis for tritium and gamma-emitting isotopes ......................... 7-1 8 Drinking water, analysis for tritium and gamma-emitting isotopes ...................................... 8-1 9 Wells (non-potable water), analysis for tritium and gamma-emitting isotopes .................... 9-1 10 Sediment 10a. Bottom sediment, analysis for gamma-emitting isotopes .................................................. 10-1 10b. Shoreline sediment, analysis for gamma-emitting isotopes .............................................. 10-2 11 Fish, analysis for gamma-emitting isotopes ...................................................................... 11-1 12 Direct Radiation 12a. Gamma dose .................................................................................................................... 12-1 12b. Neutron dose .................................................................................................................... 12-2 iii

1.0 INTRODUCTION

The following constitutes a supplement to the Annual Report for the Radiological Environmental Monitoring Program conducted at the Ameren Missouri, Callaway Energy Center, Fulton, Missouri in 2015. Results of completed analyses are presented in the attached tables.

For information regarding sampling locations, type and frequency of collection, and sample codes, refer to Part I, Tables 5.1 - 5.2 and Figures 5.1 through 5.8.

Analyses results from additional sampling may be found in Appendix A.

iv

2.0 DATA TABLES v

Table 1. Air particulates and charcoal cartridges, analyses for gamma-emitting isotopes and I-131 a.

Collection: Continuous, weekly exchange.

Units: pCi/m3 Location CA-A-001 7 58 60 95 134 137 140 144 Be Co Co Zr Cs Cs BaLa Ce Required LLDs - - - - 0.050 0.060 - -

Date Collected Vol.

01-08-15 349 0.13 +/- 0.08 < 0.004 < 0.006 < 0.009 < 0.006 < 0.005 < 0.009 < 0.024 01-15-15 311 0.17 +/- 0.09 < 0.008 < 0.006 < 0.009 < 0.007 < 0.006 < 0.008 < 0.032 01-22-15 318 < 0.07 < 0.004 < 0.006 < 0.009 < 0.008 < 0.006 < 0.005 < 0.033 01-29-15 302 < 0.06 < 0.004 < 0.006 < 0.011 < 0.008 < 0.005 < 0.006 < 0.030 02-05-15 297 0.18 +/- 0.11 < 0.006 < 0.007 < 0.012 < 0.006 < 0.004 < 0.011 < 0.025 02-12-15 295 0.15 +/- 0.08 < 0.005 < 0.007 < 0.011 < 0.008 < 0.005 < 0.009 < 0.038 02-19-15 283 < 0.07 < 0.006 < 0.005 < 0.017 < 0.008 < 0.010 < 0.011 < 0.045 02-26-15 294 0.20 +/- 0.08 < 0.005 < 0.007 < 0.011 < 0.008 < 0.007 < 0.007 < 0.041 03-05-15 298 < 0.08 < 0.004 < 0.003 < 0.010 < 0.007 < 0.007 < 0.005 < 0.047 03-12-15 306 0.25 +/- 0.12 < 0.006 < 0.003 < 0.008 < 0.007 < 0.005 < 0.014 < 0.042 03-19-15 307 0.20 +/- 0.09 < 0.005 < 0.007 < 0.010 < 0.009 < 0.004 < 0.006 < 0.038 03-26-15 307 < 0.09 < 0.007 < 0.008 < 0.007 < 0.007 < 0.006 < 0.008 < 0.039 04-02-15 304 < 0.11 < 0.008 < 0.006 < 0.012 < 0.008 < 0.009 < 0.021 < 0.047 04-09-15 305 < 0.11 < 0.006 < 0.007 < 0.009 < 0.008 < 0.006 < 0.016 < 0.048 04-16-15 306 < 0.13 < 0.008 < 0.007 < 0.010 < 0.009 < 0.006 < 0.038 < 0.028 04-23-15 302 < 0.10 < 0.008 < 0.007 < 0.007 < 0.006 < 0.007 < 0.012 < 0.048 04-30-15 308 < 0.10 < 0.011 < 0.011 < 0.014 < 0.014 < 0.007 < 0.048 < 0.056 05-07-15 310 0.24 +/- 0.11 < 0.004 < 0.007 < 0.007 < 0.008 < 0.007 < 0.011 < 0.039 05-14-15 272 0.22 +/- 0.11 < 0.011 < 0.011 < 0.020 < 0.011 < 0.010 < 0.043 < 0.041 05-21-15 271 < 0.13 < 0.006 < 0.009 < 0.019 < 0.009 < 0.011 < 0.038 < 0.043 05-28-15 269 < 0.11 < 0.007 < 0.008 < 0.010 < 0.011 < 0.009 < 0.014 < 0.039 06-04-15 272 < 0.13 < 0.006 < 0.006 < 0.012 < 0.010 < 0.009 < 0.024 < 0.042 06-11-15 264 < 0.14 < 0.010 < 0.006 < 0.013 < 0.008 < 0.010 < 0.028 < 0.040 06-18-15 266 < 0.12 < 0.005 < 0.008 < 0.016 < 0.011 < 0.010 < 0.014 < 0.062 06-25-15 261 < 0.09 < 0.007 < 0.005 < 0.009 < 0.009 < 0.005 < 0.023 < 0.034 07-02-15 263 0.13 +/- 0.08 < 0.005 < 0.005 < 0.009 < 0.008 < 0.008 < 0.010 < 0.043 07-09-15 258 < 0.13 < 0.006 < 0.005 < 0.012 < 0.010 < 0.005 < 0.013 < 0.053 07-16-15 259 < 0.12 < 0.009 < 0.008 < 0.020 < 0.010 < 0.010 < 0.013 < 0.048 07-23-15 260 0.25 +/- 0.14 < 0.009 < 0.010 < 0.020 < 0.010 < 0.006 < 0.015 < 0.064 07-30-15 256 < 0.11 < 0.009 < 0.010 < 0.020 < 0.011 < 0.010 < 0.017 < 0.052 08-06-15 257 0.15 +/- 0.09 < 0.006 < 0.008 < 0.008 < 0.009 < 0.010 < 0.014 < 0.041 08-13-15 257 < 0.12 < 0.013 < 0.010 < 0.020 < 0.012 < 0.007 < 0.012 < 0.059 08-20-15 273 < 0.12 < 0.011 < 0.006 < 0.014 < 0.010 < 0.009 < 0.013 < 0.049 08-27-15 305 < 0.11 < 0.005 < 0.007 < 0.013 < 0.007 < 0.006 < 0.011 < 0.045 09-03-15 330 0.25 +/- 0.09 < 0.009 < 0.006 < 0.017 < 0.007 < 0.006 < 0.012 < 0.044 09-10-15 273 0.27 +/- 0.12 < 0.005 < 0.006 < 0.013 < 0.009 < 0.010 < 0.008 < 0.050 09-17-15 276 < 0.10 < 0.009 < 0.007 < 0.013 < 0.008 < 0.011 < 0.013 < 0.037 09-24-15 284 < 0.11 < 0.008 < 0.005 < 0.012 < 0.009 < 0.009 < 0.016 < 0.050 10-01-15 285 < 0.10 < 0.008 < 0.005 < 0.013 < 0.011 < 0.010 < 0.022 < 0.032 a

Iodine-131 concentrations are < 0.07 pCi/m 3 unless noted otherwise.

1-1

Table 1. Air particulates and charcoal cartridges, analyses for gamma-emitting isotopes and I-131 a.

Collection: Continuous, weekly exchange.

Units: pCi/m3 Location CA-A-001 (cont.)

7 58 60 95 134 137 140 144 Be Co Co Zr Cs Cs BaLa Ce Required LLDs - - - - 0.050 0.060 - -

Date Collected Vol.

10-08-15 290 < 0.13 < 0.007 < 0.009 < 0.019 < 0.010 < 0.007 < 0.022 < 0.043 10-15-15 290 < 0.17 < 0.014 < 0.010 < 0.026 < 0.016 < 0.012 < 0.055 < 0.055 10-22-15 296 < 0.13 < 0.007 < 0.006 < 0.018 < 0.009 < 0.009 < 0.015 < 0.042 10-29-15 296 < 0.14 < 0.010 < 0.006 < 0.012 < 0.009 < 0.010 < 0.018 < 0.047 11-05-15 304 < 0.07 < 0.009 < 0.006 < 0.014 < 0.008 < 0.011 < 0.028 < 0.046 11-12-15 293 < 0.10 < 0.009 < 0.008 < 0.014 < 0.008 < 0.008 < 0.012 < 0.043 11-19-15 299 < 0.09 < 0.008 < 0.007 < 0.017 < 0.008 < 0.011 < 0.016 < 0.045 11-25-15 250 < 0.12 < 0.010 < 0.007 < 0.016 < 0.010 < 0.006 < 0.021 < 0.038 12-03-15 338 < 0.08 < 0.008 < 0.004 < 0.012 < 0.009 < 0.007 < 0.013 < 0.049 12-10-15 300 < 0.10 < 0.007 < 0.007 < 0.009 < 0.008 < 0.005 < 0.011 < 0.039 12-17-15 298 < 0.11 < 0.007 < 0.003 < 0.013 < 0.008 < 0.007 < 0.019 < 0.038 12-23-15 253 < 0.11 < 0.007 < 0.008 < 0.014 < 0.009 < 0.008 < 0.028 < 0.034 12-31-15 335 < 0.07 < 0.005 < 0.005 < 0.009 < 0.006 < 0.007 < 0.017 < 0.029 a

Iodine-131 concentrations are < 0.07 pCi/m 3 unless noted otherwise.

1-2

Table 1. Air particulates and charcoal cartridges, analyses for gamma-emitting isotopes and I-131 a.

Collection: Continuous, weekly exchange.

Units: pCi/m3 Location CA-A-007 7 58 60 95 134 137 140 144 Be Co Co Zr Cs Cs BaLa Ce Required LLDs - - - - 0.050 0.060 - -

Date Collected Vol.

01-08-15 307 < 0.11 < 0.004 < 0.003 < 0.013 < 0.009 < 0.007 < 0.012 < 0.049 01-15-15 270 0.16 +/- 0.09 < 0.007 < 0.007 < 0.012 < 0.007 < 0.004 < 0.009 < 0.033 01-22-15 276 < 0.08 < 0.005 < 0.007 < 0.012 < 0.009 < 0.007 < 0.006 < 0.032 01-29-15 281 < 0.08 < 0.008 < 0.009 < 0.013 < 0.009 < 0.008 < 0.011 < 0.039 02-05-15 274 < 0.09 < 0.005 < 0.007 < 0.011 < 0.008 < 0.004 < 0.012 < 0.023 02-12-15 272 < 0.08 < 0.004 < 0.007 < 0.010 < 0.009 < 0.005 < 0.010 < 0.048 02-19-15 266 0.13 +/- 0.07 < 0.007 < 0.009 < 0.011 < 0.010 < 0.008 < 0.011 < 0.041 02-26-15 268 < 0.11 < 0.005 < 0.008 < 0.011 < 0.009 < 0.005 < 0.007 < 0.035 03-05-15 271 0.16 +/- 0.06 < 0.008 < 0.005 < 0.010 < 0.007 < 0.008 < 0.006 < 0.043 03-12-15 278 0.19 +/- 0.11 < 0.004 < 0.008 < 0.016 < 0.007 < 0.007 < 0.019 < 0.040 03-19-15 282 0.27 +/- 0.10 < 0.005 < 0.009 < 0.011 < 0.007 < 0.003 < 0.013 < 0.028 03-26-15 286 0.16 +/- 0.10 < 0.007 < 0.007 < 0.012 < 0.007 < 0.008 < 0.009 < 0.043 04-02-15 277 0.19 +/- 0.10 < 0.009 < 0.009 < 0.020 < 0.010 < 0.010 < 0.030 < 0.048 04-09-15 283 < 0.12 < 0.008 < 0.007 < 0.014 < 0.010 < 0.011 < 0.046 < 0.033 04-16-15 284 0.23 +/- 0.11 < 0.009 < 0.010 < 0.027 < 0.009 < 0.008 < 0.030 < 0.038 04-23-15 284 < 0.10 < 0.006 < 0.008 < 0.010 < 0.009 < 0.010 < 0.014 < 0.030 04-30-15 284 < 0.10 < 0.004 < 0.008 < 0.011 < 0.007 < 0.007 < 0.014 < 0.043 05-07-15 284 0.18 +/- 0.10 < 0.005 < 0.007 < 0.019 < 0.009 < 0.007 < 0.035 < 0.031 05-14-15 280 0.24 +/- 0.14 < 0.010 < 0.007 < 0.016 < 0.010 < 0.010 < 0.029 < 0.049 05-21-15 289 < 0.10 < 0.011 < 0.008 < 0.009 < 0.009 < 0.009 < 0.030 < 0.046 05-28-15 284 < 0.11 < 0.006 < 0.006 < 0.010 < 0.009 < 0.007 < 0.024 < 0.047 06-04-15 292 < 0.10 < 0.011 < 0.007 < 0.009 < 0.010 < 0.008 < 0.023 < 0.048 06-11-15 283 0.21 +/- 0.13 < 0.006 < 0.007 < 0.009 < 0.008 < 0.006 < 0.017 < 0.050 06-18-15 289 < 0.11 < 0.004 < 0.008 < 0.010 < 0.008 < 0.007 < 0.013 < 0.047 06-25-15 244 < 0.11 < 0.007 < 0.005 < 0.021 < 0.009 < 0.008 < 0.016 < 0.032 07-02-15 250 < 0.12 < 0.006 < 0.013 < 0.016 < 0.012 < 0.006 < 0.031 < 0.045 07-09-15 243 0.21 +/- 0.12 < 0.007 < 0.005 < 0.011 < 0.008 < 0.005 < 0.015 < 0.063 07-16-15 242 < 0.13 < 0.011 < 0.008 < 0.013 < 0.011 < 0.006 < 0.014 < 0.054 07-23-15 240 < 0.12 < 0.009 < 0.011 < 0.022 < 0.010 < 0.011 < 0.016 < 0.063 07-30-15 239 < 0.12 < 0.009 < 0.010 < 0.020 < 0.011 < 0.012 < 0.014 < 0.037 08-06-15 240 < 0.16 < 0.014 < 0.011 < 0.023 < 0.015 < 0.009 < 0.020 < 0.061 08-13-15 242 < 0.11 < 0.010 < 0.008 < 0.014 < 0.011 < 0.010 < 0.018 < 0.048 08-20-15 240 0.21 +/- 0.11 < 0.006 < 0.007 < 0.012 < 0.012 < 0.009 < 0.015 < 0.044 08-27-15 260 < 0.11 < 0.007 < 0.005 < 0.017 < 0.009 < 0.011 < 0.016 < 0.049 09-03-15 258 < 0.13 < 0.009 < 0.010 < 0.018 < 0.010 < 0.010 < 0.010 < 0.053 09-10-15 257 < 0.14 < 0.009 < 0.010 < 0.019 < 0.012 < 0.012 < 0.032 < 0.045 09-17-15 266 0.21 +/- 0.12 < 0.006 < 0.007 < 0.020 < 0.009 < 0.009 < 0.014 < 0.048 09-24-15 266 < 0.12 < 0.006 < 0.007 < 0.021 < 0.011 < 0.007 < 0.023 < 0.036 10-01-15 261 < 0.13 < 0.009 < 0.006 < 0.023 < 0.011 < 0.006 < 0.015 < 0.059 a

Iodine-131 concentrations are < 0.07 pCi/m 3 unless noted otherwise.

1-3

Table 1. Air particulates and charcoal cartridges, analyses for gamma-emitting isotopes and I-131 a.

Collection: Continuous, weekly exchange.

Units: pCi/m3 Location CA-A-007 (cont.)

7 58 60 95 134 137 140 144 Be Co Co Zr Cs Cs BaLa Ce Required LLDs - - - - 0.050 0.060 - -

Date Collected Vol.

10-08-15 268 < 0.13 < 0.013 < 0.005 < 0.013 < 0.010 < 0.011 < 0.023 < 0.056 10-15-15 262 < 0.16 < 0.008 < 0.006 < 0.012 < 0.013 < 0.011 < 0.036 < 0.048 10-22-15 264 0.26 +/- 0.15 < 0.010 < 0.009 < 0.022 < 0.010 < 0.009 < 0.019 < 0.050 10-29-15 269 < 0.11 < 0.006 < 0.009 < 0.016 < 0.011 < 0.007 < 0.015 < 0.054 11-05-15 275 < 0.10 < 0.008 < 0.005 < 0.017 < 0.009 < 0.008 < 0.018 < 0.040 11-12-15 272 < 0.09 < 0.006 < 0.011 < 0.010 < 0.009 < 0.011 < 0.014 < 0.053 11-19-15 270 < 0.09 < 0.009 < 0.015 < 0.012 < 0.009 < 0.011 < 0.019 < 0.053 11-25-15 229 < 0.13 < 0.011 < 0.007 < 0.015 < 0.012 < 0.012 < 0.045 < 0.061 12-03-15 318 < 0.11 < 0.009 < 0.005 < 0.015 < 0.009 < 0.008 < 0.019 < 0.046 12-10-15 278 < 0.09 < 0.008 < 0.008 < 0.010 < 0.008 < 0.008 < 0.022 < 0.044 12-17-15 272 < 0.15 < 0.012 < 0.008 < 0.020 < 0.010 < 0.007 < 0.036 < 0.052 12-23-15 238 < 0.12 < 0.006 < 0.003 < 0.008 < 0.009 < 0.009 < 0.017 < 0.041 12-31-15 319 < 0.09 < 0.008 < 0.006 < 0.009 < 0.008 < 0.007 < 0.020 < 0.042 a

Iodine-131 concentrations are < 0.07 pCi/m 3 unless noted otherwise.

1-4

Table 1. Air particulates and charcoal cartridges, analyses for gamma-emitting isotopes and I-131 a.

Collection: Continuous, weekly exchange.

Units: pCi/m3 Location CA-A-008 7 58 60 95 134 137 140 144 Be Co Co Zr Cs Cs BaLa Ce Required LLDs - - - - 0.050 0.060 - -

Date Collected Vol.

01-08-15 275 < 0.07 < 0.009 < 0.007 < 0.012 < 0.007 < 0.007 < 0.012 < 0.045 01-15-15 241 < 0.08 < 0.005 < 0.008 < 0.013 < 0.009 < 0.004 < 0.012 < 0.048 01-22-15 242 < 0.10 < 0.006 < 0.008 < 0.013 < 0.011 < 0.005 < 0.007 < 0.057 01-29-15 241 < 0.10 < 0.009 < 0.008 < 0.018 < 0.009 < 0.005 < 0.016 < 0.048 02-05-15 239 < 0.19 < 0.012 < 0.007 < 0.025 < 0.009 < 0.010 < 0.129 < 0.054 02-12-15 237 < 0.08 < 0.006 < 0.009 < 0.021 < 0.010 < 0.008 < 0.010 < 0.036 02-19-15 237 0.23 +/- 0.10 < 0.011 < 0.006 < 0.016 < 0.012 < 0.007 < 0.010 < 0.055 02-26-15 240 < 0.08 < 0.005 < 0.009 < 0.020 < 0.008 < 0.007 < 0.008 < 0.048 03-05-15 240 0.16 +/- 0.08 < 0.005 < 0.007 < 0.014 < 0.009 < 0.007 < 0.007 < 0.026 03-12-15 238 0.16 +/- 0.08 < 0.009 < 0.008 < 0.011 < 0.010 < 0.006 < 0.010 < 0.045 03-19-15 239 < 0.13 < 0.005 < 0.010 < 0.021 < 0.010 < 0.011 < 0.015 < 0.054 03-26-15 232 < 0.09 < 0.010 < 0.008 < 0.020 < 0.007 < 0.007 < 0.012 < 0.048 04-02-15 237 0.20 +/- 0.11 < 0.009 < 0.008 < 0.024 < 0.011 < 0.012 < 0.026 < 0.058 04-09-15 257 < 0.17 < 0.010 < 0.006 < 0.021 < 0.010 < 0.007 < 0.057 < 0.038 04-16-15 267 < 0.12 < 0.005 < 0.011 < 0.013 < 0.010 < 0.009 < 0.022 < 0.070 04-23-15 270 < 0.11 < 0.004 < 0.010 < 0.014 < 0.011 < 0.009 < 0.015 < 0.035 04-30-15 278 0.15 +/- 0.08 < 0.004 < 0.008 < 0.010 < 0.010 < 0.008 < 0.014 < 0.043 05-07-15 278 0.27 +/- 0.10 < 0.007 < 0.007 < 0.008 < 0.009 < 0.008 < 0.023 < 0.044 05-14-15 291 0.24 +/- 0.09 < 0.010 < 0.008 < 0.012 < 0.009 < 0.007 < 0.026 < 0.038 05-21-15 299 < 0.12 < 0.006 < 0.007 < 0.012 < 0.008 < 0.007 < 0.019 < 0.042 05-28-15 299 0.19 +/- 0.10 < 0.004 < 0.007 < 0.013 < 0.010 < 0.008 < 0.013 < 0.023 06-04-15 300 < 0.09 < 0.008 < 0.006 < 0.020 < 0.007 < 0.007 < 0.035 < 0.036 06-11-15 302 0.19 +/- 0.11 < 0.008 < 0.009 < 0.011 < 0.007 < 0.006 < 0.016 < 0.037 06-18-15 310 0.16 +/- 0.09 < 0.004 < 0.009 < 0.017 < 0.006 < 0.007 < 0.012 < 0.049 06-25-15 315 0.19 +/- 0.10 < 0.004 < 0.007 < 0.019 < 0.008 < 0.004 < 0.026 < 0.043 07-02-15 318 < 0.10 < 0.010 < 0.012 < 0.014 < 0.009 < 0.009 < 0.012 < 0.044 07-09-15 321 0.16 +/- 0.08 < 0.007 < 0.004 < 0.010 < 0.005 < 0.006 < 0.011 < 0.035 07-16-15 318 < 0.11 < 0.005 < 0.009 < 0.010 < 0.009 < 0.007 < 0.023 < 0.028 07-23-15 321 < 0.09 < 0.009 < 0.007 < 0.011 < 0.008 < 0.007 < 0.012 < 0.027 07-30-15 320 < 0.12 < 0.008 < 0.007 < 0.018 < 0.008 < 0.006 < 0.017 < 0.047 08-06-15 320 0.26 +/- 0.11 < 0.008 < 0.006 < 0.014 < 0.008 < 0.009 < 0.014 < 0.027 08-13-15 325 0.21 +/- 0.11 < 0.009 < 0.004 < 0.013 < 0.008 < 0.009 < 0.026 < 0.028 08-20-15 325 < 0.13 < 0.006 < 0.004 < 0.010 < 0.009 < 0.007 < 0.028 < 0.033 08-27-15 329 0.18 +/- 0.07 < 0.006 < 0.004 < 0.010 < 0.006 < 0.005 < 0.007 < 0.029 09-03-15 303 0.29 +/- 0.12 < 0.010 < 0.008 < 0.011 < 0.009 < 0.009 < 0.010 < 0.041 09-10-15 298 < 0.12 < 0.008 < 0.008 < 0.013 < 0.009 < 0.005 < 0.010 < 0.041 09-17-15 310 0.21 +/- 0.12 < 0.006 < 0.004 < 0.018 < 0.009 < 0.008 < 0.018 < 0.030 09-24-15 313 0.14 +/- 0.08 < 0.011 < 0.004 < 0.011 < 0.010 < 0.008 < 0.026 < 0.046 10-01-15 310 0.21 +/- 0.12 < 0.008 < 0.006 < 0.020 < 0.009 < 0.009 < 0.020 < 0.045 a

Iodine-131 concentrations are < 0.07 pCi/m 3 unless noted otherwise.

1-5

Table 1. Air particulates and charcoal cartridges, analyses for gamma-emitting isotopes and I-131 a.

Collection: Continuous, weekly exchange.

Units: pCi/m3 Location CA-A-008 (cont.)

7 58 60 95 134 137 140 144 Be Co Co Zr Cs Cs BaLa Ce Required LLDs - - - - 0.050 0.060 - -

Date Collected Vol.

10-08-15 314 < 0.12 < 0.008 < 0.004 < 0.013 < 0.010 < 0.008 < 0.025 < 0.031 10-15-15 307 < 0.12 < 0.010 < 0.007 < 0.015 < 0.009 < 0.006 < 0.040 < 0.035 10-22-15 308 0.20 +/- 0.10 < 0.006 < 0.005 < 0.013 < 0.009 < 0.009 < 0.017 < 0.029 10-29-15 318 < 0.10 < 0.007 < 0.007 < 0.013 < 0.009 < 0.006 < 0.012 < 0.042 11-05-15 323 < 0.10 < 0.010 < 0.006 < 0.013 < 0.008 < 0.005 < 0.016 < 0.042 11-12-15 311 < 0.10 < 0.005 < 0.005 < 0.020 < 0.009 < 0.008 < 0.015 < 0.036 11-19-15 319 0.18 +/- 0.10 < 0.007 < 0.006 < 0.018 < 0.008 < 0.008 < 0.021 < 0.037 11-25-15 273 < 0.13 < 0.013 < 0.013 < 0.016 < 0.010 < 0.007 < 0.033 < 0.031 12-03-15 367 < 0.09 < 0.007 < 0.006 < 0.016 < 0.008 < 0.004 < 0.010 < 0.033 12-10-15 322 < 0.09 < 0.008 < 0.006 < 0.017 < 0.009 < 0.009 < 0.015 < 0.029 12-17-15 318 < 0.10 < 0.008 < 0.003 < 0.018 < 0.009 < 0.007 < 0.048 < 0.039 12-23-15 272 < 0.10 < 0.006 < 0.006 < 0.009 < 0.009 < 0.007 < 0.014 < 0.044 12-31-15 357 < 0.09 < 0.006 < 0.004 < 0.014 < 0.007 < 0.007 < 0.011 < 0.030 a

Iodine-131 concentrations are < 0.07 pCi/m 3 unless noted otherwise.

1-6

Table 1. Air particulates and charcoal cartridges, analyses for gamma-emitting isotopes and I-131 a.

Collection: Continuous, weekly exchange.

Units: pCi/m3 Location CA-A-009 7 58 60 95 134 137 140 144 Be Co Co Zr Cs Cs BaLa Ce Required LLDs - - - - 0.050 0.060 - -

Date Collected Vol.

01-08-15 338 0.15 +/- 0.08 < 0.006 < 0.003 < 0.016 < 0.008 < 0.008 < 0.011 < 0.049 01-15-15 300 < 0.09 < 0.004 < 0.009 < 0.013 < 0.008 < 0.007 < 0.008 < 0.035 01-22-15 308 0.09 +/- 0.05 < 0.005 < 0.006 < 0.009 < 0.006 < 0.005 < 0.006 < 0.029 01-29-15 311 < 0.10 < 0.006 < 0.006 < 0.013 < 0.006 < 0.004 < 0.013 < 0.034 02-05-15 302 < 0.08 < 0.006 < 0.006 < 0.011 < 0.009 < 0.003 < 0.012 < 0.041 02-12-15 298 < 0.08 < 0.008 < 0.008 < 0.015 < 0.008 < 0.006 < 0.009 < 0.034 02-19-15 291 0.18 +/- 0.09 < 0.005 < 0.007 < 0.010 < 0.007 < 0.005 < 0.008 < 0.035 02-26-15 296 < 0.10 < 0.004 < 0.007 < 0.010 < 0.009 < 0.005 < 0.011 < 0.034 03-05-15 297 < 0.10 < 0.008 < 0.005 < 0.009 < 0.008 < 0.008 < 0.010 < 0.039 03-12-15 315 0.21 +/- 0.11 < 0.007 < 0.007 < 0.009 < 0.009 < 0.008 < 0.017 < 0.038 03-19-15 317 0.16 +/- 0.08 < 0.005 < 0.007 < 0.011 < 0.007 < 0.008 < 0.011 < 0.029 03-26-15 314 < 0.11 < 0.009 < 0.005 < 0.015 < 0.009 < 0.007 < 0.010 < 0.037 04-02-15 318 < 0.10 < 0.004 < 0.007 < 0.013 < 0.008 < 0.005 < 0.012 < 0.025 04-09-15 313 < 0.12 < 0.007 < 0.009 < 0.012 < 0.009 < 0.008 < 0.043 < 0.045 04-16-15 317 < 0.15 < 0.010 < 0.006 < 0.014 < 0.014 < 0.009 < 0.036 < 0.040 04-23-15 314 < 0.08 < 0.008 < 0.006 < 0.011 < 0.007 < 0.004 < 0.025 < 0.030 04-30-15 318 < 0.09 < 0.007 < 0.006 < 0.008 < 0.008 < 0.007 < 0.043 < 0.026 05-07-15 313 < 0.13 < 0.008 < 0.008 < 0.018 < 0.008 < 0.008 < 0.030 < 0.036 05-14-15 329 < 0.12 < 0.005 < 0.007 < 0.013 < 0.008 < 0.008 < 0.027 < 0.041 05-21-15 326 < 0.08 < 0.009 < 0.007 < 0.009 < 0.006 < 0.008 < 0.017 < 0.041 05-28-15 329 0.21 +/- 0.08 < 0.004 < 0.007 < 0.010 < 0.006 < 0.008 < 0.012 < 0.040 06-04-15 305 < 0.11 < 0.011 < 0.009 < 0.017 < 0.009 < 0.009 < 0.037 < 0.040 06-11-15 317 0.25 +/- 0.10 < 0.008 < 0.007 < 0.012 < 0.008 < 0.008 < 0.016 < 0.037 06-18-15 316 0.19 +/- 0.11 < 0.008 < 0.007 < 0.010 < 0.006 < 0.007 < 0.012 < 0.031 06-25-15 282 < 0.09 < 0.010 < 0.008 < 0.010 < 0.008 < 0.010 < 0.022 < 0.040 07-02-15 284 0.19 +/- 0.09 < 0.006 < 0.006 < 0.010 < 0.009 < 0.009 < 0.031 < 0.051 07-09-15 284 < 0.09 < 0.004 < 0.005 < 0.010 < 0.004 < 0.006 < 0.013 < 0.040 07-16-15 282 < 0.11 < 0.006 < 0.010 < 0.015 < 0.009 < 0.007 < 0.020 < 0.034 07-23-15 284 < 0.13 < 0.010 < 0.007 < 0.013 < 0.006 < 0.010 < 0.043 < 0.052 07-30-15 281 0.23 +/- 0.10 < 0.010 < 0.007 < 0.018 < 0.009 < 0.011 < 0.017 < 0.035 08-06-15 280 < 0.12 < 0.009 < 0.005 < 0.017 < 0.010 < 0.007 < 0.015 < 0.033 08-13-15 285 < 0.11 < 0.008 < 0.006 < 0.010 < 0.009 < 0.011 < 0.017 < 0.038 08-20-15 282 0.18 +/- 0.09 < 0.006 < 0.008 < 0.016 < 0.010 < 0.008 < 0.022 < 0.044 08-27-15 282 < 0.13 < 0.011 < 0.007 < 0.019 < 0.010 < 0.007 < 0.014 < 0.047 09-03-15 285 0.24 +/- 0.11 < 0.006 < 0.009 < 0.017 < 0.010 < 0.008 < 0.013 < 0.047 09-10-15 281 0.17 +/- 0.10 < 0.007 < 0.005 < 0.014 < 0.010 < 0.008 < 0.011 < 0.043 09-17-15 279 < 0.20 < 0.010 < 0.012 < 0.016 < 0.016 < 0.013 < 0.047 < 0.066 09-24-15 284 < 0.11 < 0.011 < 0.007 < 0.007 < 0.007 < 0.008 < 0.025 < 0.028 10-01-15 278 < 0.10 < 0.008 < 0.005 < 0.016 < 0.009 < 0.009 < 0.013 < 0.043 a

Iodine-131 concentrations are < 0.07 pCi/m 3 unless noted otherwise.

1-7

Table 1. Air particulates and charcoal cartridges, analyses for gamma-emitting isotopes and I-131 a.

Collection: Continuous, weekly exchange.

Units: pCi/m3 Location CA-A-009 (cont.)

7 58 60 95 134 137 140 144 Be Co Co Zr Cs Cs BaLa Ce Required LLDs - - - - 0.050 0.060 - -

Date Collected Vol.

10-08-15 277 < 0.15 < 0.007 < 0.008 < 0.027 < 0.010 < 0.008 < 0.031 < 0.067 10-15-15 275 < 0.12 < 0.007 < 0.006 < 0.012 < 0.009 < 0.009 < 0.033 < 0.066 10-22-15 278 < 0.15 < 0.007 < 0.010 < 0.013 < 0.012 < 0.011 < 0.032 < 0.058 10-29-15 283 < 0.12 < 0.008 < 0.005 < 0.013 < 0.009 < 0.008 < 0.015 < 0.055 11-05-15 285 < 0.16 < 0.017 < 0.013 < 0.018 < 0.013 < 0.012 < 0.031 < 0.052 11-12-15 281 < 0.13 < 0.006 < 0.009 < 0.020 < 0.009 < 0.011 < 0.017 < 0.048 11-19-15 288 < 0.15 < 0.013 < 0.007 < 0.014 < 0.012 < 0.007 < 0.029 < 0.054 11-25-15 244 < 0.16 < 0.008 < 0.008 < 0.010 < 0.011 < 0.012 < 0.040 < 0.063 12-03-15 334 < 0.09 < 0.009 < 0.006 < 0.014 < 0.008 < 0.006 < 0.019 < 0.051 12-10-15 302 < 0.11 < 0.008 < 0.008 < 0.008 < 0.009 < 0.009 < 0.037 < 0.043 12-17-15 304 0.17 +/- 0.08 < 0.004 < 0.005 < 0.014 < 0.008 < 0.007 < 0.018 < 0.039 12-23-15 263 < 0.12 < 0.007 < 0.005 < 0.008 < 0.007 < 0.008 < 0.029 < 0.042 12-31-15 350 < 0.10 < 0.006 < 0.007 < 0.008 < 0.008 < 0.005 < 0.016 < 0.047 a

Iodine-131 concentrations are < 0.07 pCi/m 3 unless noted otherwise.

1-8

Table 1. Air particulates and charcoal cartridges, analyses for gamma-emitting isotopes and I-131 a.

Collection: Continuous, weekly exchange.

Units: pCi/m3 Location CA-B-003 7 58 60 95 134 137 140 144 Be Co Co Zr Cs Cs BaLa Ce Required LLDs - - - - 0.050 0.060 - -

Date Collected Vol.

01-08-15 338 < 0.08 < 0.003 < 0.003 < 0.013 < 0.007 < 0.007 < 0.022 < 0.042 01-15-15 296 0.14 +/- 0.07 < 0.005 < 0.007 < 0.014 < 0.009 < 0.006 < 0.008 < 0.034 01-22-15 285 < 0.08 < 0.005 < 0.009 < 0.014 < 0.007 < 0.006 < 0.006 < 0.034 01-29-15 294 < 0.10 < 0.003 < 0.005 < 0.016 < 0.009 < 0.007 < 0.017 < 0.039 02-05-15 291 < 0.15 < 0.009 < 0.009 < 0.012 < 0.009 < 0.009 < 0.210 < 0.049 02-12-15 287 0.13 +/- 0.08 < 0.006 < 0.007 < 0.012 < 0.010 < 0.005 < 0.010 < 0.045 02-19-15 291 < 0.10 < 0.009 < 0.005 < 0.011 < 0.009 < 0.006 < 0.009 < 0.048 02-26-15 291 0.18 +/- 0.08 < 0.006 < 0.007 < 0.010 < 0.008 < 0.005 < 0.007 < 0.045 03-05-15 291 < 0.10 < 0.007 < 0.006 < 0.015 < 0.010 < 0.010 < 0.010 < 0.039 03-12-15 297 0.22 +/- 0.09 < 0.006 < 0.007 < 0.009 < 0.008 < 0.009 < 0.018 < 0.051 03-19-15 291 < 0.13 < 0.008 < 0.008 < 0.011 < 0.009 < 0.007 < 0.016 < 0.054 03-26-15 294 < 0.08 < 0.006 < 0.005 < 0.011 < 0.007 < 0.007 < 0.009 < 0.036 04-02-15 291 0.19 +/- 0.09 < 0.004 < 0.010 < 0.013 < 0.008 < 0.007 < 0.013 < 0.044 04-09-15 287 < 0.15 < 0.011 < 0.006 < 0.012 < 0.008 < 0.009 < 0.053 < 0.051 04-16-15 286 0.15 +/- 0.11 < 0.006 < 0.008 < 0.012 < 0.008 < 0.007 < 0.019 < 0.043 04-23-15 281 < 0.11 < 0.006 < 0.008 < 0.020 < 0.008 < 0.009 < 0.037 < 0.052 04-30-15 287 0.21 +/- 0.10 < 0.004 < 0.008 < 0.011 < 0.009 < 0.006 < 0.014 < 0.026 05-07-15 282 < 0.14 < 0.008 < 0.008 < 0.017 < 0.010 < 0.007 < 0.040 < 0.039 05-14-15 290 < 0.09 < 0.008 < 0.008 < 0.014 < 0.009 < 0.006 < 0.028 < 0.039 05-21-15 291 < 0.09 < 0.004 < 0.008 < 0.010 < 0.009 < 0.006 < 0.019 < 0.041 05-28-15 288 0.25 +/- 0.11 < 0.003 < 0.008 < 0.011 < 0.008 < 0.009 < 0.014 < 0.052 06-04-15 285 < 0.11 < 0.012 < 0.013 < 0.019 < 0.009 < 0.008 < 0.036 < 0.051 06-11-15 289 < 0.14 < 0.006 < 0.008 < 0.012 < 0.007 < 0.009 < 0.018 < 0.034 06-18-15 284 < 0.12 < 0.006 < 0.007 < 0.020 < 0.008 < 0.007 < 0.025 < 0.041 06-25-15 256 < 0.15 < 0.011 < 0.011 < 0.015 < 0.011 < 0.006 < 0.022 < 0.060 07-02-15 286 < 0.12 < 0.010 < 0.009 < 0.018 < 0.009 < 0.009 < 0.023 < 0.041 07-09-15 284 < 0.10 < 0.006 < 0.004 < 0.009 < 0.008 < 0.007 < 0.013 < 0.027 07-16-15 288 < 0.13 < 0.008 < 0.007 < 0.017 < 0.010 < 0.009 < 0.022 < 0.034 07-23-15 287 < 0.13 < 0.009 < 0.006 < 0.018 < 0.009 < 0.008 < 0.051 < 0.049 07-30-15 284 < 0.14 < 0.007 < 0.008 < 0.017 < 0.010 < 0.009 < 0.021 < 0.044 08-06-15 278 < 0.14 < 0.008 < 0.007 < 0.009 < 0.011 < 0.007 < 0.017 < 0.045 08-13-15 286 < 0.12 < 0.006 < 0.007 < 0.013 < 0.010 < 0.010 < 0.016 < 0.050 08-20-15 281 < 0.12 < 0.007 < 0.007 < 0.019 < 0.009 < 0.006 < 0.042 < 0.050 08-27-15 285 < 0.12 < 0.005 < 0.009 < 0.017 < 0.009 < 0.009 < 0.019 < 0.030 09-03-15 288 0.26 +/- 0.12 < 0.008 < 0.008 < 0.014 < 0.008 < 0.010 < 0.012 < 0.037 09-10-15 280 0.26 +/- 0.12 < 0.007 < 0.006 < 0.009 < 0.010 < 0.006 < 0.016 < 0.031 09-17-15 278 < 0.10 < 0.007 < 0.005 < 0.019 < 0.010 < 0.006 < 0.022 < 0.045 09-24-15 295 < 0.11 < 0.013 < 0.005 < 0.014 < 0.008 < 0.008 < 0.023 < 0.043 10-01-15 297 0.17 +/- 0.09 < 0.005 < 0.005 < 0.014 < 0.007 < 0.007 < 0.010 < 0.028 a

Iodine-131 concentrations are < 0.07 pCi/m 3 unless noted otherwise.

1-9

Table 1. Air particulates and charcoal cartridges, analyses for gamma-emitting isotopes and I-131 a.

Collection: Continuous, weekly exchange.

Units: pCi/m3 Location CA-B-003 (cont.)

7 58 60 95 134 137 140 144 Be Co Co Zr Cs Cs BaLa Ce Required LLDs - - - - 0.050 0.060 - -

Date Collected Vol.

10-08-15 293 < 0.13 < 0.010 < 0.006 < 0.010 < 0.010 < 0.009 < 0.042 < 0.056 10-15-15 289 < 0.10 < 0.007 < 0.012 < 0.013 < 0.009 < 0.007 < 0.033 < 0.055 10-22-15 285 < 0.12 < 0.009 < 0.007 < 0.018 < 0.010 < 0.008 < 0.029 < 0.055 10-29-15 289 < 0.10 < 0.008 < 0.006 < 0.007 < 0.008 < 0.008 < 0.014 < 0.047 11-05-15 291 < 0.12 < 0.010 < 0.007 < 0.021 < 0.010 < 0.006 < 0.023 < 0.049 11-12-15 278 < 0.13 < 0.007 < 0.009 < 0.011 < 0.011 < 0.012 < 0.019 < 0.050 11-19-15 279 < 0.16 < 0.008 < 0.007 < 0.028 < 0.011 < 0.009 < 0.061 < 0.042 11-25-15 234 < 0.16 < 0.010 < 0.011 < 0.023 < 0.012 < 0.007 < 0.031 < 0.051 12-03-15 313 < 0.08 < 0.008 < 0.004 < 0.015 < 0.008 < 0.005 < 0.015 < 0.039 12-10-15 276 < 0.13 < 0.007 < 0.004 < 0.018 < 0.010 < 0.006 < 0.021 < 0.036 12-17-15 277 < 0.11 < 0.007 < 0.003 < 0.015 < 0.008 < 0.007 < 0.024 < 0.032 12-23-15 231 < 0.14 < 0.011 < 0.009 < 0.023 < 0.011 < 0.008 < 0.042 < 0.048 12-31-15 300 < 0.08 < 0.005 < 0.007 < 0.013 < 0.009 < 0.009 < 0.011 < 0.039 a

Iodine-131 concentrations are < 0.07 pCi/m 3 unless noted otherwise.

1-10

Table 2. Milk, analyses for iodine-131 and gamma-emitting isotopes.

Collection: Semimonthly during grazing season, monthly otherwise.

Units: pCi/L Location CA-MLK-M9 Date Lab Concentration (pCi/L)

Collected Code I-131 K-40 Zn-65 Cs-134 Cs-137 Ba-La-140 Required LLDs 1 - - 15 18 15 01-12-15 CAMI -110 < 0.4 1007 +/- 114 < 5.8 < 4.4 < 4.1 < 3.0 02-10-15 CAMI -539 < 0.3 1260 +/- 71 < 5.3 < 2.5 < 2.3 < 2.2 03-10-15 CAMI -987 < 0.3 889 +/- 97 < 7.8 < 3.9 < 3.5 < 3.3 04-13-15 CAMI -1644 < 0.5 1229 +/- 115 < 6.5 < 3.8 < 4.6 < 2.7 04-27-15 CAMI -1963 < 0.2 1213 +/- 127 < 14.2 < 6.0 < 6.5 < 6.4 05-12-15 CAMI -2379 < 0.3 977 +/- 104 < 7.4 < 3.5 < 3.7 < 3.4 05-26-15 CAMI -2583 < 0.4 960 +/- 92 < 7.2 < 3.5 < 4.2 < 2.2 06-09-15 CAMI -2908 < 0.3 952 +/- 88 < 7.6 < 3.9 < 4.1 < 2.5 06-23-15 CAMI -3209 < 0.2 844 +/- 87 < 4.4 < 3.9 < 3.7 < 3.5 07-14-15 CAMI -3715 < 0.5 945 +/- 92 < 5.8 < 3.1 < 3.7 < 3.4 07-28-15 CAMI -4108 < 0.3 1232 +/- 113 < 7.8 < 3.8 < 4.4 < 2.4 08-11-15 CAMI -4448 < 0.4 964 +/- 98 < 3.1 < 3.2 < 3.4 < 2.2 08-25-15 CAMI -4664 < 0.2 1251 +/- 101 < 3.5 < 3.6 < 4.3 < 2.7 09-08-15 CAMI -4929 < 0.2 1148 +/- 126 < 11.4 < 4.6 < 5.0 < 3.7 09-22-15 CAMI -5232 < 0.3 1065 +/- 113 < 4.7 < 4.5 < 4.0 < 1.5 10-13-15 CAMI -5770 < 0.2 1205 +/- 128 < 9.8 < 4.9 < 4.2 < 2.0 10-27-15 CAMI -6233 < 0.4 1220 +/- 102 < 5.3 < 3.3 < 4.7 < 3.3 11-10-15 CAMI -6452 < 0.2 1412 +/- 135 < 7.3 < 5.1 < 3.2 < 1.9 11-24-15 CAMI -6661 < 0.4 1173 +/- 108 < 2.9 < 3.0 < 4.7 < 2.3 12-08-15 CAMI -6934 < 0.3 1350 +/- 103 < 6.1 < 2.6 < 3.1 < 1.4 2-1

Table 3. Vegetation, analyses for iodine-131 and gamma-emitting isotopes.

Collection: Monthly, during growing season Units: pCi/kg wet Collection Concentration (pCi/kg wet) 40 54 58 60 131 134 137 Lab Code Date Sample Type K Mn Co Co I Cs Cs Location: CA-FPL-V9 5/11/2015 NSa 6/10/2015 NSa CAVE- 3716 7/14/2015 Mustard greens 3849 +/- 329 < 7.4 < 10.4 < 7.5 < 18.3 < 11.6 < 9.8 CAVE- 4452 8/11/2015 Mustard Greens 3766 +/- 291 < 7.8 < 8.5 < 4.4 < 19.9 < 9.1 < 10.1 CAVE- 4960 9/8/2015 Turnip greens 4577 +/- 325 < 8.7 < 9.1 < 8.1 < 29.7 < 12.2 < 13.4 CAVE- 4961 9/8/2015 Mustard greens 4101 +/- 386 < 10.5 < 12.0 < 10.1 < 36.9 < 13.9 < 11.5 Location: CA-FPL-V11 5/11/2015 NSa CAVE- 2942 6/8/2015 Lettuce 4177 +/- 242 < 3.8 < 6.2 < 5.6 < 13.2 < 6.1 < 5.5 CAVE- 3718 7/14/2015 Lettuce 3965 +/- 250 < 6.6 < 3.9 < 4.7 < 17.5 < 7.2 < 8.2 CAVE- 4454 8/10/2015 Cabbage 3510 +/- 265 < 8.4 < 10.0 < 5.4 < 15.7 < 7.0 < 9.8 a

9/8/2015 NS Location: CA-FPL-V12 5/11/2015 NSa CAVE- 2944 6/10/2015 Lettuce 4617 +/- 297 < 8.8 < 5.2 < 7.4 < 15.0 < 8.8 < 9.3 CAVE- 2945 6/10/2015 Cabbage 3895 +/- 254 < 7.2 < 5.4 < 6.1 < 13.7 < 7.6 < 5.5 CAVE- 3719 7/14/2015 Cabbage 3126 +/- 240 < 6.4 < 3.5 < 6.3 < 25.4 < 7.9 < 9.1 CAVE- 3720 7/14/2015 Lettuce 5260 +/- 333 < 7.7 < 5.3 < 4.6 < 23.0 < 9.5 < 7.7 CAVE- 4455 8/11/2015 Cabbage 3850 +/- 310 < 11.8 < 10.8 < 6.6 < 18.6 < 11.9 < 10.3 Spinach mustard CAVE- 4962 9/8/2015 4279 +/- 390 < 7.3 < 8.0 < 8.4 < 24.4 < 14.2 < 11.1 tendergreen CAVE- 5771 10/13/2015 Spinach Mustard 4977 +/- 376 < 12.2 < 9.2 < 9.5 < 22.0 < 11.8 < 13.0 a

"NS" = No sample; refer to Part I, Table 5.5, Missed Collections and Analyses.

3-1

Table 3. Vegetation, analyses for iodine-131 and gamma-emitting isotopes.

Collection: Monthly, during growing season Units: pCi/kg wet Collection Concentration (pCi/kg wet) 40 54 58 60 131 134 137 Lab Code Date Sample Type K Mn Co Co I Cs Cs Location: CA-FPL-V16 5/11/2015 NSa CAVE- 2946 6/8/2015 Lettuce 4923 +/- 334 < 9.7 < 7.4 < 9.2 < 24.8 < 9.0 < 10.4 CAVE- 2947 6/8/2015 Collards 6474 +/- 418 < 9.8 < 8.8 < 7.8 < 21.9 < 8.9 < 11.8 CAVE- 2948 6/8/2015 Mustard greens 6554 +/- 371 < 11.8 < 5.8 < 7.5 < 16.5 < 9.0 < 8.8 CAVE- 2949 6/8/2015 Turnip greens 6312 +/- 328 < 10.3 < 8.6 < 6.6 < 16.9 < 8.1 < 9.8 CAVE- 3721 7/13/2015 Mustard 6069 +/- 360 < 9.0 < 7.0 < 10.9 < 14.4 < 8.8 < 12.1 CAVE- 3722 7/13/2015 Lettuce 6959 +/- 410 < 12.2 < 10.2 < 10.8 < 24.0 < 11.9 < 10.1 CAVE- 3723 7/13/2015 Turnips 7401 +/- 477 < 12.6 < 9.9 < 11.4 < 25.4 < 12.4 < 15.9 CAVE- 4456 8/10/2015 Collard Greens 7785 +/- 375 < 9.3 < 5.2 < 8.6 < 21.2 < 9.7 < 7.0 9/8/2015 NSa Location: CA-FPL-V17 CAVE- 2380 5/11/2015 Lettuce 5519 +/- 621 < 15.9 < 12.8 < 18.0 < 22.3 < 14.2 < 17.6 CAVE- 2950 6/9/2015 Mustard greens 2831 +/- 162 < 5.0 < 6.4 < 4.6 < 17.9 < 6.2 < 5.8 CAVE- 2951 6/9/2015 Turnip greens 2977 +/- 169 < 5.9 < 5.0 < 3.3 < 16.3 < 6.0 < 6.5 CAVE- 3724 7/14/2015 Mustard 3956 +/- 210 < 10.3 < 9.3 < 7.5 < 24.4 < 9.6 < 9.1 CAVE- 3725 7/14/2015 Lettuce 5639 +/- 425 < 11.0 < 15.8 < 11.7 < 38.6 < 12.3 < 15.7 CAVE- 4457 8/11/2015 Mustard Greens 5003 +/- 517 < 14.5 < 15.9 < 9.8 < 30.4 < 17.2 < 14.8 CAVE- 4963 9/8/2015 Mustard greens 4524 +/- 457 < 16.5 < 11.5 < 12.3 < 41.8 < 15.1 < 15.1 CAVE- 4964 9/8/2015 Turnip greens 4384 +/- 390 < 12.1 < 9.0 < 12.2 < 30.3 < 10.2 < 10.8 a

"NS" = No sample; refer to Part I, Table 5.5, Missed Collections and Analyses.

3-2

Table 4. Non-food Crops, analyses for tritium and gamma-emitting isotopes.

Collection: Annually, at harvest Units: pCi/kg wet Sample Collection (pCi/L) Concentration (pCi/kg wet) 3 40 54 58 60 134 137 Lab Code Type Date H K Mn Co Co Cs Cs Location: CA-FC-1 10/12/2015 NSa 10/12/2015 NSa 10/12/2015 NSa Location: CA-FC-2 CAVE- 5923 1-Soybeans 10/12/2015 < 148 4291 +/- 286 < 8.1 < 6.1 < 7.8 < 7.8 < 9.1 CAVE- 5925 2-Soybeans 10/12/2015 < 144 5329 +/- 320 < 7.1 < 6.9 < 10.5 < 9.1 < 9.1 CAVE- 5926 3-Soybeans 10/12/2015 < 144 5119 +/- 342 < 7.4 < 8.8 < 9.7 < 9.3 < 10.2 Location: CA-FC-3 CAVE- 5927 1-Soybeans 10/12/2015 < 144 5279 +/- 323 < 4.9 < 8.9 < 7.4 < 10.0 < 10.5 CAVE- 5928 2-Soybeans 10/13/2015 < 148 13280 +/- 642 < 17.6 < 8.8 < 16.4 < 14.0 < 15.0 CAVE- 5929 3-Soybeans 10/13/2015 < 148 14412 +/- 672 < 18.1 < 19.8 < 17.3 < 16.0 < 16.2 Location: CA-FC-4 CAVE- 5930 Soybeans 10/15/2015 < 148 15843 +/- 401 < 6.6 < 4.9 < 7.0 < 7.7 < 9.1 a

"NS" = No sample; see Table 2.0, Listing of Missed Samples.

4-1

Table 5. Soil, analyses for gamma-emitting isotopes.

Collection: Annually Collection Concentration (pCi/kg dry) 40 54 59 58 60 95 134 137 140 Lab Code Date K Mn Fe Co Co ZrNb Cs Cs BaLa Location: SOL-F-002 CASO- 6837 11/25/2015 12007 +/- 671 < 24.2 < 35.6 < 21.0 < 22.0 < 52.2 < 17.5 491 +/- 40 < 57.2 CASO- 6838 11/25/2015 12319 +/- 692 < 24.4 < 57.1 < 24.9 < 22.1 < 57.1 < 22.9 531 +/- 52 < 147.6 Location: SOL-F-006 CASO- 6839 11/23/2015 11119 +/- 671 < 29.5 < 73.1 < 28.1 < 14.5 < 59.6 < 17.4 372 +/- 38 < 64.1 CASO- 6840 11/23/2015 11865 +/- 592 < 25.2 < 54.5 < 23.9 < 15.5 < 43.3 < 18.8 264 +/- 26 < 45.7 Location: SOL-PR-003 CASO- 6844 11/25/2015 10585 +/- 561 < 25.6 < 52.5 < 25.7 < 18.2 < 47.6 < 18.0 391 +/- 32 < 156.6 CASO- 6845 11/25/2015 11147 +/- 673 < 24.1 < 56.2 < 31.3 < 18.7 < 59.6 < 22.8 203 +/- 39 < 63.9 Location: SOL-PR-007 CASO- 6846 11/23/2015 10491 +/- 610 < 24.0 < 75.7 < 25.7 < 19.4 < 43.2 < 16.9 224 +/- 25 < 146.6 CASO- 6847 11/23/2015 11137 +/- 667 < 23.1 < 49.0 < 29.0 < 11.7 < 61.3 < 17.3 208 +/- 34 < 83.5 Location: SOL-M-009 CASO- 6841 11/24/2015 13616 +/- 755 < 21.5 < 54.5 < 28.1 < 20.2 < 45.8 < 20.3 176 +/- 28 < 37.9 CASO- 6843 11/24/2015 12892 +/- 638 < 24.6 < 61.7 < 14.4 < 16.0 < 46.9 < 13.7 156 +/- 20 < 94.5 Location: SOL-W-001 CASO- 6848 11/23/2015 13276 +/- 709 < 21.8 < 40.6 < 32.1 < 19.9 < 60.0 < 18.3 65 +/- 26 < 72.9 CASO- 6849 11/23/2015 12621 +/- 646 < 21.8 < 68.5 < 19.7 < 18.2 < 45.1 < 17.6 < 23.8 < 109.7 Location: SOL-W-002 CASO- 6850 11/23/2015 16597 +/- 769 < 29.2 < 88.6 < 28.1 < 23.0 < 48.1 < 21.6 122 +/- 23 < 167.9 CASO- 6851 11/23/2015 15850 +/- 757 < 28.5 < 88.6 < 33.4 < 21.4 < 47.8 < 19.7 114 +/- 29 < 202.0 Location: SOL-W-003 CASO- 6852 11/23/2015 7313 +/- 534 < 26.7 < 59.6 < 23.4 < 20.4 < 21.9 < 22.4 < 19.0 < 82.9 CASO- 6853 11/23/2015 10138 +/- 643 < 26.7 < 80.4 < 20.3 < 15.1 < 41.8 < 17.3 < 21.6 < 91.3 Location: SOL-W-004 CASO- 6854 11/23/2015 11267 +/- 649 < 27.3 < 38.6 < 26.2 < 22.8 < 37.0 < 24.0 < 26.5 < 135.4 CASO- 6855 11/23/2015 11917 +/- 662 < 24.9 < 32.7 < 28.1 < 20.8 < 47.6 < 18.7 < 25.5 < 252.4 5-1

Table 6. Surface water, analyses for tritium and gamma-emitting isotopes.

Collection: Monthly Location: CA-SWA-S01 Units: pCi/L Lab Code Required CASW- 271 CASW- 747 CASW- 1413 CASW- 2004 Date Collected LLD 01-26-15 02-24-15 03-31-15 04-28-15 H-3 3000 < 192 < 146 < 148 < 147 Mn-54 15 < 4.4 < 3.1 < 2.0 < 1.0 Fe-59 30 < 9.2 < 6.8 < 9.9 < 3.0 Co-58 15 < 4.3 < 5.6 < 2.5 < 1.2 Co-60 15 < 2.9 < 2.6 < 4.0 < 1.1 Zn-65 30 < 3.1 < 5.7 < 4.9 < 2.0 Zr-Nb-95 15 < 2.6 < 3.3 < 4.0 < 2.1 I-131 1000 < 4.7 < 11.9 < 15.3 < 15.9 Cs-134 15 < 4.3 < 4.7 < 4.5 < 1.2 Cs-137 18 < 4.2 < 3.9 < 4.3 < 1.4 Ba-La-140 15 < 3.7 < 5.6 < 10.6 < 6.6 Lab Code Required CASW- 2584 CASW- 3390 CASW- 4205 CASW- 4661 Date Collected LLD 05-26-15 06-29-15 07-28-15 08-25-15 H-3 3000 < 148 < 143 < 142 < 145 Mn-54 15 < 3.0 < 3.1 < 3.6 < 4.4 Fe-59 30 < 5.9 < 5.2 < 6.5 < 8.0 Co-58 15 < 2.8 < 2.9 < 3.2 < 4.5 Co-60 15 < 2.4 < 1.9 < 1.7 < 2.2 Zn-65 30 < 2.4 < 5.3 < 3.2 < 4.5 Zr-Nb-95 15 < 3.5 < 3.2 < 2.8 < 2.9 I-131 1000 < 9.4 < 7.7 < 7.9 < 19.5 Cs-134 15 < 3.9 < 3.7 < 3.2 < 4.3 Cs-137 18 < 3.7 < 3.3 < 3.3 < 4.1 Ba-La-140 15 < 3.4 < 5.4 < 3.6 < 4.6 Lab Code Required CASW- 5409 CASW- 6248 CASW- 6667 CASW- 7253 Date Collected LLD 09-29-15 10-27-15 11-24-15 12-29-15 H-3 3000 < 149 < 143 < 144 < 140 Mn-54 15 < 4.8 < 1.0 < 2.2 < 2.3 Fe-59 30 < 5.4 < 3.5 < 5.9 < 3.5 Co-58 15 < 3.1 < 1.9 < 1.8 < 1.7 Co-60 15 < 4.2 < 1.3 < 3.3 < 2.9 Zn-65 30 < 8.5 < 3.1 < 2.6 < 2.8 Zr-Nb-95 15 < 5.9 < 2.5 < 2.3 < 2.8 I-131 1000 < 12.0 < 23.2 < 7.9 < 16.1 Cs-134 15 < 6.2 < 1.6 < 3.3 < 2.9 Cs-137 18 < 5.9 < 1.8 < 2.0 < 2.5 Ba-La-140 15 < 8.2 < 6.0 < 5.6 < 6.1 6-1

Table 6. Surface water, analyses for tritium and gamma-emitting isotopes.

Collection: Monthly Location: CA-SWA-S02 Units: pCi/L Lab Code Required CASW- 272 CASW- 748 CASW- 1414 CASW- 2005 Date Collected LLD 01-26-15 02-24-15 03-31-15 04-28-15 H-3 3000 < 192 < 146 < 148 < 147 Mn-54 15 < 6.0 < 2.8 < 2.6 < 1.3 Fe-59 30 < 7.1 < 6.4 < 3.3 < 1.9 Co-58 15 < 5.1 < 2.7 < 3.6 < 1.3 Co-60 15 < 2.9 < 1.8 < 1.4 < 0.9 Zn-65 30 < 17.0 < 4.9 < 5.2 < 1.5 Zr-Nb-95 15 < 7.7 < 3.7 < 3.5 < 1.7 I-131 1000 < 7.6 < 8.4 < 19.6 < 15.2 Cs-134 15 < 6.5 < 3.7 < 3.2 < 1.1 Cs-137 18 < 6.3 < 2.5 < 3.3 < 1.3 Ba-La-140 15 < 6.2 < 5.5 < 7.6 < 4.3 Lab Code Required CASW- 2586 CASW- 3391 CASW- 4206 CASW- 4662 Date Collected LLD 05-26-15 06-29-15 07-28-15 08-25-15 a

H-3 3000 < 148 < 143 < 176 351 +/- 90 Mn-54 15 < 2.5 < 1.9 < 3.4 < 4.9 Fe-59 30 < 5.0 < 5.9 < 7.4 < 5.7 Co-58 15 < 2.8 < 1.8 < 3.9 < 2.9 Co-60 15 < 2.6 < 2.6 < 2.2 < 4.0 Zn-65 30 < 6.3 < 2.5 < 3.0 < 5.7 Zr-Nb-95 15 < 4.0 < 4.1 < 2.8 < 3.4 I-131 1000 < 14.3 < 13.2 < 12.7 < 17.0 Cs-134 15 < 3.3 < 3.4 < 3.4 < 5.8 Cs-137 18 < 3.2 < 2.6 < 4.3 < 4.9 Ba-La-140 15 < 6.0 < 2.6 < 3.1 < 9.8 Lab Code Required CASW- 5410 CASW- 6249 CASW- 6668 CASW- 7254 Date Collected LLD 09-29-15 10-27-15 11-24-15 12-29-15 H-3 3000 212 +/- 85 222 +/- 83 171 +/- 80 < 140 Mn-54 15 < 4.5 < 1.9 < 3.6 < 3.2 Fe-59 30 < 6.4 < 4.1 < 5.0 < 3.9 Co-58 15 < 4.2 < 2.1 < 3.3 < 1.9 Co-60 15 < 3.8 < 1.8 < 2.7 < 2.7 Zn-65 30 < 4.9 < 3.3 < 4.2 < 3.6 Zr-Nb-95 15 < 3.6 < 3.8 < 4.3 < 4.7 I-131 1000 < 13.2 < 24.2 < 10.5 < 10.5 Cs-134 15 < 5.4 < 2.1 < 4.6 < 3.2 Cs-137 18 < 5.7 < 2.5 < 4.3 < 2.3 Ba-La-140 15 < 7.8 < 12.9 < 3.8 < 4.0 a

Duplicate result = 416+/-93 pCi/L.

6-2

7. Surface Water (Ponds), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-SWA-UHS CASW- 155 01/13/15 < 188 < 3.6 < 6.1 < 3.8 < 2.9 < 4.9 < 4.2 < 3.8 < 4.2 < 5.1 CASW- 1702 04/14/15 < 158 < 3.1 < 5.4 < 3.3 < 2.7 < 3.2 < 5.2 < 3.2 < 3.5 < 7.4 CASW- 4094 07/27/15 178 +/- 86 < 5.5 < 4.5 < 4.9 < 4.5 < 11.3 < 3.7 < 4.7 < 2.5 < 5.7 Location: CA-SWA-POND 01 CASW- 902 03/03/15 < 147 < 3.7 < 5.2 < 3.0 < 1.7 < 6.4 < 2.8 < 3.5 < 2.8 < 3.3 CASW- 4879 09/01/15 < 147 < 2.0 < 7.0 < 3.1 < 2.4 < 4.2 < 3.6 < 3.5 < 3.6 < 3.1 Location: CA-SWA-POND 02 CASW- 903 03/03/15 < 147 < 4.2 < 10.1 < 4.7 < 2.2 < 7.6 < 3.9 < 4.0 < 3.7 < 5.0 CASW- 4880 09/01/15 < 147 < 0.9 < 2.1 < 1.2 < 1.1 < 1.9 < 1.6 < 1.3 < 1.3 < 8.2 Location: CA-SWA-SLUDGE LAGOON #4 CASW- 910 03/03/15 < 147 < 2.2 < 3.0 < 3.3 < 2.6 < 2.3 < 2.9 < 2.8 < 2.3 < 7.2 CASW- 4887 09/01/15 < 147 < 3.7 < 10.2 < 4.6 < 3.7 < 5.0 < 6.2 < 5.4 < 5.2 < 12.2 7-1

7. Surface Water (Ponds), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-SWA-OUTFALL 010 CASW- 904 03/03/15 < 147 < 1.8 < 3.3 < 1.9 < 1.8 < 3.3 < 2.2 < 2.6 < 2.1 < 5.5 CASW- 4881 09/01/15 < 147 < 1.4 < 3.8 < 1.8 < 1.3 < 1.9 < 2.3 < 1.4 < 1.6 < 5.9 Location: CA-SWA-OUTFALL 011 CASW- 905 03/03/15 < 147 < 3.4 < 8.2 < 3.9 < 2.2 < 2.1 < 3.2 < 3.6 < 3.2 < 5.9 CASW- 4882 09/01/15 < 147 < 1.3 < 4.0 < 1.6 < 1.2 < 2.9 < 1.7 < 1.6 < 1.7 < 2.8 Location: CA-SWA-OUTFALL 012 CASW- 906 03/03/15 < 147 < 2.4 < 7.4 < 2.9 < 1.5 < 3.6 < 3.3 < 2.9 < 2.0 < 4.1 CASW- 4883 09/01/15 < 147 < 0.8 < 2.4 < 1.1 < 0.9 < 2.2 < 1.8 < 1.2 < 1.1 < 3.0 Location: CA-SWA-OUTFALL 013 CASW- 907 03/03/15 < 147 < 2.7 < 3.9 < 3.3 < 1.6 < 3.0 < 2.6 < 3.0 < 3.7 < 7.9 CASW- 4884 09/01/15 < 147 < 1.3 < 3.1 < 1.5 < 1.0 < 2.9 < 1.9 < 1.3 < 1.1 < 4.5 Location: CA-SWA-OUTFALL 014 CASW- 908 03/03/15 < 147 < 2.1 < 7.2 < 1.1 < 1.9 < 3.1 < 2.4 < 3.0 < 2.2 < 4.9 CASW- 4885 09/01/15 < 147 < 1.2 < 4.3 < 1.1 < 1.2 < 2.0 < 2.3 < 1.6 < 1.4 < 5.7 Location: CA-SWA-OUTFALL 015 CASW- 909 03/03/15 < 147 < 2.2 < 3.1 < 1.8 < 1.2 < 2.1 < 1.9 < 1.8 < 2.1 < 4.8 CASW- 4886 09/01/15 < 147 < 1.3 < 3.0 < 1.3 < 1.0 < 1.8 < 1.8 < 1.3 < 1.3 < 8.3 7-2

Table 8. Drinking Water Wells, analysis for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa CA-DWA-003 (Ward)

CADW- 353 1/27/2015 < 180 < 2.5 < 4.5 < 2.1 < 0.9 < 2.4 < 3.3 < 2.7 < 2.9 < 4.0 CADW- 732 2/23/2015 < 146 < 2.6 < 3.3 < 1.5 < 1.8 < 2.5 < 3.2 < 2.8 < 2.9 < 3.5 CADW- 1398 3/30/2015 < 148 < 3.5 < 10.9 < 2.4 < 3.2 < 6.9 < 3.9 < 4.0 < 4.2 < 7.2 CADW- 2237 5/1/2015 < 187 < 2.1 < 8.6 < 3.6 < 2.6 < 5.3 < 2.2 < 2.8 < 2.1 < 13.7 CADW- 4234 7/29/2015 < 139 < 1.5 < 5.7 < 3.0 < 1.6 < 2.5 < 4.0 < 3.4 < 2.9 < 9.2 CADW- 6234 10/26/2015 < 143 < 2.0 < 6.4 < 2.1 < 1.9 < 3.0 < 4.1 < 2.5 < 2.8 < 6.3 CA-DWA-004 (Miller)

CADW- 354 1/27/2015 < 180 < 4.4 < 10.5 < 3.8 < 2.4 < 3.5 < 3.8 < 3.9 < 1.8 < 7.1 CADW- 733 2/23/2015 < 146 < 2.2 < 2.6 < 1.3 < 2.2 < 4.8 < 2.2 < 2.8 < 2.4 < 3.6 CADW- 1399 3/31/2015 < 148 < 3.0 < 8.3 < 3.0 < 3.3 < 6.7 < 6.1 < 4.3 < 3.0 < 6.7 CADW- 2238 5/1/2015 < 187 < 1.8 < 4.4 < 2.1 < 1.4 < 3.2 < 2.9 < 2.4 < 1.9 < 4.1 CADW- 4235 7/29/2015 < 139 < 1.6 < 7.5 < 3.4 < 1.7 < 3.8 < 2.7 < 3.2 < 3.7 < 13.6 CADW- 6235 10/27/2015 < 143 < 2.7 < 4.8 < 2.6 < 2.0 < 3.6 < 3.0 < 2.8 < 3.7 < 11.6 CA-DWA-005 (Hux)

CADW- 355 1/27/2015 < 180 < 2.9 < 7.4 < 2.5 < 2.0 < 4.6 < 3.0 < 2.7 < 2.5 < 5.2 CADW- 734 2/23/2015 < 146 < 4.4 < 6.0 < 3.4 < 2.8 < 9.6 < 6.5 < 4.4 < 3.6 < 6.7 CADW- 1400 3/30/2015 < 148 < 1.5 < 2.9 < 1.3 < 0.8 < 2.5 < 2.0 < 1.1 < 1.1 < 5.7 CADW- 2239 5/1/2015 < 187 < 2.4 < 3.9 < 2.2 < 1.8 < 2.3 < 2.8 < 2.8 < 2.7 < 8.6 CADW- 4236 7/29/2015 < 139 < 2.1 < 6.1 < 2.6 < 1.8 < 5.4 < 5.2 < 3.4 < 3.1 < 12.4 10/26/2015 NSa CA-DWA-006 (Lindeman)

CADW- 356 1/27/2015 < 180 < 2.6 < 5.2 < 3.0 < 2.9 < 3.5 < 4.0 < 3.2 < 2.3 < 7.9 CADW- 735 2/23/2015 < 146 < 2.3 < 6.0 < 2.7 < 2.5 < 2.3 < 2.8 < 2.8 < 1.9 < 4.2 CADW- 1402 3/30/2015 < 148 < 3.6 < 9.9 < 2.4 < 5.2 < 6.2 < 6.5 < 5.6 < 4.9 < 9.8 CADW- 2240 5/1/2015 < 187 < 1.4 < 4.5 < 2.6 < 2.1 < 4.0 < 2.8 < 2.5 < 2.5 < 6.4 CADW- 4237 7/29/2015 < 139 < 1.6 < 6.6 < 2.2 < 2.0 < 3.8 < 3.8 < 3.0 < 2.9 < 14.8 CADW- 6236 10/26/2015 < 143 < 1.8 < 7.2 < 1.3 < 2.4 < 3.9 < 2.3 < 2.9 < 2.5 < 12.0 CA-DWA-007 (Kriete)

CADW- 357 1/27/2015 < 180 < 2.3 < 3.7 < 2.9 < 1.4 < 3.5 < 3.4 < 2.8 < 2.7 < 6.1 CADW- 736 2/23/2015 < 146 < 3.1 < 5.1 < 3.8 < 2.3 < 5.4 < 2.4 < 3.4 < 3.2 < 5.7 CADW- 1403 3/30/2015 < 148 < 2.3 < 6.7 < 3.0 < 2.1 < 5.1 < 2.5 < 3.7 < 3.8 < 4.3 CADW- 2241 5/1/2015 < 187 < 1.1 < 2.7 < 1.3 < 1.1 < 1.9 < 2.2 < 1.2 < 1.4 < 3.9 CADW- 4238 7/29/2015 < 139 < 1.5 < 3.9 < 1.5 < 2.0 < 2.7 < 2.2 < 2.5 < 3.2 < 6.4 CADW- 6237 10/26/2015 < 143 < 2.2 < 4.8 < 1.8 < 2.5 < 4.4 < 4.0 < 2.4 < 2.3 < 5.4 CA-DWA-008 (Brandt)

CADW- 359 1/27/2015 < 180 < 2.3 < 4.4 < 1.7 < 1.4 < 3.1 < 2.6 < 2.5 < 2.6 < 5.0 CADW- 738 2/23/2015 < 146 < 2.6 < 6.2 < 2.2 < 2.5 < 1.9 < 3.4 < 2.9 < 3.0 < 2.5 CADW- 1404 3/30/2015 < 148 < 2.6 < 6.0 < 3.3 < 1.8 < 5.4 < 5.4 < 4.1 < 4.7 < 3.2 CADW- 2242 5/1/2015 < 187 < 1.2 < 2.7 < 1.7 < 1.1 < 2.7 < 2.4 < 1.3 < 1.6 < 3.7 7/29/2015 NSa CADW- 4486 8/11/2015 < 145 < 2.5 < 6.1 < 3.0 < 1.8 < 5.4 < 3.6 < 3.2 < 3.1 < 11.1 CADW- 6238 10/26/2015 < 143 < 2.5 < 5.5 < 3.6 < 1.5 < 3.7 < 3.6 < 2.9 < 3.0 < 7.6 a

"NS" = No sample; see Table 2.0, Listing of Missed Samples.

8-1

Table 8. Drinking Water Wells, analysis for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa CA-DWA-009 (Clardy)

CADW- 360 1/27/2015 < 180 < 2.6 < 6.3 < 3.0 < 1.6 < 2.8 < 2.9 < 3.1 < 2.6 < 10.4 CADW- 739 2/23/2015 < 146 < 2.3 < 4.5 < 2.5 < 1.7 < 5.3 < 2.0 < 2.6 < 3.3 < 2.7 CADW- 1405 3/30/2015 < 148 < 3.7 < 10.6 < 2.1 < 3.3 < 6.8 < 5.8 < 3.9 < 4.3 < 9.3 CADW- 2243 5/1/2015 < 187 < 0.9 < 2.7 < 0.8 < 1.2 < 1.9 < 2.3 < 1.3 < 1.2 < 2.8 CADW- 4239 7/29/2015 < 139 < 3.0 < 4.9 < 2.3 < 1.8 < 5.1 < 2.1 < 3.2 < 1.8 < 7.5 CADW- 6240 10/26/2015 < 143 < 2.2 < 4.7 < 2.6 < 2.0 < 3.4 < 4.9 < 2.5 < 2.4 < 4.6 CA-DWA-010 (Dillon, Susan)

CADW- 361 1/27/2015 < 180 < 1.9 < 4.8 < 1.9 < 2.1 < 2.7 < 3.2 < 2.6 < 1.9 < 8.1 CADW- 740 2/23/2015 < 146 < 4.1 < 5.5 < 3.3 < 3.2 < 4.8 < 5.2 < 4.1 < 3.1 < 6.1 CADW- 1406 3/30/2015 < 148 < 2.8 < 2.8 < 3.6 < 2.5 < 5.8 < 4.7 < 3.0 < 2.2 < 5.5 CADW- 2244 5/1/2015 < 187 < 1.2 < 1.9 < 1.2 < 1.3 < 1.7 < 1.5 < 1.1 < 1.2 < 5.1 CADW- 4240 7/29/2015 < 139 < 3.4 < 5.1 < 3.9 < 1.7 < 4.4 < 2.3 < 3.2 < 3.0 < 8.6 CADW- 6241 10/26/2015 < 143 < 3.0 < 4.4 < 2.9 < 1.8 < 4.3 < 2.8 < 2.9 < 3.1 < 7.5 CA-DWA-012 (Dillon, Joe)

CADW- 362 1/27/2015 < 180 < 2.3 < 3.8 < 1.6 < 1.1 < 3.2 < 3.5 < 2.5 < 2.1 < 6.7 CADW- 741 2/23/2015 < 146 < 3.1 < 5.9 < 2.9 < 1.9 < 5.2 < 3.8 < 3.6 < 3.8 < 5.7 CADW- 1407 3/30/2015 < 148 < 2.7 < 5.5 < 2.8 < 1.7 < 5.6 < 2.3 < 2.9 < 3.4 < 6.1 CADW- 2245 5/1/2015 < 187 < 2.4 < 7.4 < 1.9 < 1.7 < 3.8 < 3.5 < 2.1 < 2.6 < 9.8 CADW- 4241 7/29/2015 < 139 < 2.4 < 4.2 < 2.5 < 1.6 < 1.5 < 3.3 < 3.0 < 3.0 < 15.0 CADW- 6242 10/26/2015 < 143 < 1.3 < 4.0 < 2.5 < 1.7 < 4.3 < 3.4 < 3.0 < 2.7 < 11.3 CA-DWA-022 (Plummer)

CADW- 364 1/27/2015 < 180 < 1.7 < 2.9 < 2.0 < 1.5 < 3.4 < 2.2 < 2.2 < 2.5 < 6.5 CADW- 743 2/23/2015 < 146 < 3.3 < 6.0 < 2.9 < 2.7 < 5.3 < 3.8 < 3.8 < 2.5 < 5.8 CADW- 1409 3/30/2015 < 148 < 2.8 < 3.7 < 1.9 < 1.9 < 3.0 < 3.0 < 2.9 < 1.7 < 5.2 CADW- 2248 5/1/2015 < 187 < 1.3 < 3.1 < 1.2 < 0.7 < 1.8 < 2.1 < 1.2 < 1.1 < 6.0 CADW- 4242 7/29/2015 < 139 < 2.8 < 8.7 < 3.4 < 1.6 < 2.6 < 3.4 < 3.6 < 4.2 < 12.1 CADW- 6244 10/26/2015 < 143 < 2.5 < 5.6 < 1.8 < 1.4 < 4.5 < 2.7 < 2.6 < 2.1 < 8.1 CA-DWA-D01 (Portland Bar/Grill)

CADW- 366 1/27/2015 < 180 < 1.5 < 4.0 < 2.0 < 1.5 < 1.3 < 2.8 < 2.0 < 2.6 < 5.3 CADW- 745 2/23/2015 < 146 < 2.4 < 2.7 < 2.8 < 1.9 < 3.7 < 2.6 < 3.3 < 1.8 < 4.8 CADW- 1411 3/30/2015 < 148 < 2.6 < 5.2 < 2.0 < 1.4 < 2.9 < 2.1 < 2.5 < 2.8 < 3.5 CADW- 2250 5/1/2015 < 187 < 1.2 < 3.1 < 0.9 < 0.9 < 2.4 < 1.4 < 1.1 < 1.1 < 4.9 CADW- 4244 7/29/2015 < 139 < 0.8 < 7.2 < 3.7 < 2.2 < 2.0 < 3.6 < 2.7 < 2.1 < 6.2 CADW- 6246 10/26/2015 < 143 < 1.2 < 5.8 < 1.8 < 2.5 < 3.9 < 3.6 < 2.6 < 2.7 < 4.8 8-2

Table 8. Drinking Water Wells, analysis for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa CA-DWA-PW1 (Plant Cafeteria)

CADW- 367 1/27/2015 < 180 < 1.2 < 1.9 < 1.4 < 1.0 < 2.4 < 1.9 < 1.3 < 1.3 < 3.5 CADW- 746 2/23/2015 < 146 < 3.0 < 3.6 < 1.8 < 1.8 < 4.1 < 2.2 < 2.9 < 3.0 < 2.0 CADW- 1412 3/31/2015 < 148 < 2.4 < 8.5 < 2.2 < 2.6 < 4.7 < 3.5 < 3.8 < 4.2 < 3.2 CADW- 2251 5/1/2015 < 187 < 1.5 < 4.3 < 1.2 < 1.7 < 3.0 < 2.3 < 1.6 < 1.6 < 4.9 CADW- 4245 7/29/2015 < 139 < 1.7 < 3.4 < 1.1 < 1.5 < 2.5 < 1.6 < 1.6 < 1.6 < 3.4 CADW- 6247 10/26/2015 < 143 < 2.5 < 4.6 < 2.4 < 2.1 < 3.1 < 3.6 < 2.0 < 2.9 < 6.1 CA-DWA-21 CADW- 363 1/27/2015 < 180 < 2.1 < 4.6 < 2.1 < 1.9 < 2.1 < 3.1 < 2.2 < 1.5 < 9.4 CADW- 742 2/23/2015 < 146 < 3.5 < 7.3 < 3.8 < 3.5 < 4.1 < 5.3 < 5.3 < 2.4 < 6.2 CADW- 1408 3/30/2015 < 148 < 2.6 < 3.9 < 1.9 < 2.0 < 3.6 < 2.1 < 2.9 < 3.0 < 2.6 CADW- 2246 5/1/2015 < 187 < 1.3 < 1.5 < 1.2 < 1.0 < 1.8 < 2.2 < 1.2 < 1.2 < 3.0 CADW- 4246 7/29/2015 < 139 < 2.2 < 5.3 < 3.0 < 2.5 < 3.8 < 2.6 < 2.9 < 2.0 < 8.7 CADW- 6243 10/26/2015 < 143 < 1.5 < 4.3 < 2.2 < 2.0 < 2.5 < 3.0 < 2.1 < 1.8 < 5.3 CA-DWA-V16 CADW- 365 1/27/2015 < 180 < 2.0 < 4.0 < 2.1 < 1.9 < 4.1 < 2.8 < 1.9 < 2.3 < 4.8 CADW- 744 2/23/2015 < 146 < 2.2 < 4.8 < 2.2 < 1.3 < 2.8 < 3.4 < 3.5 < 3.8 < 6.1 CADW- 1410 3/30/2015 < 148 < 5.0 < 11.1 < 3.9 < 3.7 < 6.8 < 5.5 < 5.7 < 3.5 < 9.6 CADW- 2249 5/1/2015 < 187 < 1.2 < 2.5 < 1.0 < 1.2 < 1.6 < 1.8 < 1.1 < 1.1 < 5.2 CADW- 4247 7/29/2015 < 139 < 2.4 < 6.4 < 2.8 < 1.4 < 4.9 < 3.6 < 3.0 < 2.5 < 5.9 CADW- 6245 10/26/2015 < 143 < 2.2 < 4.4 < 2.9 < 1.7 < 4.9 < 3.7 < 2.6 < 2.6 < 9.1 8-3

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-936 CAWW- 156 1/14/2015 294 +/- 111 < 2.9 < 5.8 < 1.9 < 1.6 < 3.0 < 2.2 < 3.0 < 3.8 < 7.5 CAWW- 601 2/12/2015 394 +/- 119 < 2.7 < 7.4 < 2.8 < 1.7 < 5.5 < 2.2 < 3.4 < 3.3 < 4.7 CAWW- 1067 3/12/2015 269 +/- 88 < 3.1 < 5.1 < 1.8 < 2.6 < 4.6 < 4.5 < 3.8 < 3.4 < 5.0 CAWW- 1681 4/16/2015 218 +/- 89 < 2.3 < 6.4 < 4.1 < 2.0 < 6.5 < 3.7 < 3.7 < 2.5 < 8.1 CAWW- 2406 5/13/2015 < 148 < 3.0 < 5.5 < 3.0 < 2.8 < 4.2 < 5.0 < 3.8 < 3.9 < 3.1 CAWW- 3154 6/19/2015 180 +/- 81 < 3.1 < 3.7 < 3.7 < 2.1 < 1.7 < 1.8 < 3.9 < 4.3 < 2.8 CAWW- 3943 7/20/2015 < 176 < 2.8 < 3.2 < 4.2 < 4.2 < 7.6 < 5.8 < 6.0 < 5.4 < 7.5 CAWW- 4545 8/17/2015 347 +/- 90 < 1.7 < 5.7 < 2.6 < 2.5 < 5.6 < 4.1 < 3.1 < 2.3 < 7.1 CAWW- 5112 9/16/2015 233 +/- 83 < 1.5 < 3.6 < 1.8 < 1.4 < 2.5 < 2.2 < 1.4 < 1.5 < 4.7 CAWW- 5718 10/9/2015 < 149 < 2.0 < 4.8 < 2.3 < 1.8 < 2.9 < 4.2 < 3.3 < 2.0 < 10.2 CAWW- 6555 11/12/2015 332 +/- 88 < 3.9 < 8.6 < 4.1 < 3.1 < 6.9 < 2.5 < 4.4 < 4.3 < 3.8 CAWW- 7011 12/13/2015 260 +/- 84 < 5.3 < 5.3 < 2.6 < 5.3 < 4.2 < 3.9 < 4.8 < 3.5 < 5.4 Location: CA-WWA-937A CAWW- 157 1/13/2015 < 188 < 3.0 < 6.6 < 1.8 < 2.4 < 3.2 < 3.6 < 2.9 < 2.6 < 4.8 CAWW- 602 2/13/2015 < 188 < 3.7 < 5.1 < 3.8 < 3.6 < 3.5 < 3.9 < 3.3 < 3.3 < 7.3 CAWW- 1068 3/13/2015 < 148 < 2.9 < 5.1 < 2.8 < 2.6 < 6.0 < 2.6 < 3.0 < 3.5 < 4.7 CAWW- 1682 4/16/2015 < 158 < 4.0 < 6.8 < 2.9 < 2.5 < 4.8 < 4.9 < 4.3 < 4.4 < 8.9 CAWW- 2508 5/19/2015 < 154 < 4.1 < 6.8 < 4.3 < 3.0 < 6.8 < 4.7 < 4.4 < 3.5 < 7.5 CAWW- 3155 6/19/2015 < 143 < 2.6 < 5.3 < 4.2 < 3.1 < 5.5 < 6.3 < 3.9 < 2.5 < 3.7 CAWW- 3944 7/18/2015 < 176 < 2.9 < 8.9 < 4.1 < 2.4 < 4.2 < 3.8 < 4.7 < 4.1 < 5.5 8/17/2015 NSa Location: CA-WWA-937B CAWW- 158 1/13/2015 < 188 < 3.7 < 5.8 < 2.9 < 2.4 < 4.8 < 4.0 < 3.9 < 3.5 < 4.4 CAWW- 603 2/12/2015 < 188 < 3.8 < 8.4 < 4.2 < 3.2 < 5.6 < 5.2 < 4.3 < 4.9 < 3.2 CAWW- 1069 3/12/2015 < 148 < 2.1 < 3.3 < 3.1 < 2.0 < 5.0 < 3.6 < 3.5 < 4.0 < 7.7 CAWW- 1683 4/15/2015 244 +/- 90 < 4.1 < 12.7 < 4.2 < 3.6 < 4.3 < 3.9 < 4.4 < 3.9 < 5.8 CAWW- 2509 5/19/2015 < 154 < 3.5 < 6.9 < 1.7 < 2.4 < 2.1 < 4.4 < 4.3 < 4.6 < 7.9 CAWW- 3156 6/19/2015 238 +/- 84 < 2.3 < 3.6 < 2.0 < 2.1 < 2.9 < 3.7 < 3.1 < 3.6 < 1.5 CAWW- 3945 7/20/2015 334 +/- 105 < 3.0 < 5.2 < 3.6 < 2.1 < 4.6 < 2.6 < 4.4 < 4.3 < 3.4 CAWW- 4546 8/17/2015 314 +/- 88 < 3.3 < 8.1 < 3.1 < 2.0 < 6.2 < 4.9 < 3.5 < 3.4 < 7.8 CAWW- 5113 9/16/2015 264 +/- 85 < 3.2 < 8.8 < 3.7 < 1.5 < 1.6 < 2.8 < 3.4 < 3.3 < 9.1 CAWW- 5719 10/9/2015 169 +/- 81 < 3.0 < 6.0 < 2.3 < 1.9 < 4.2 < 4.8 < 3.0 < 3.2 < 11.3 11/12/2015 NSa 12/13/2015 NSa a

"NS" = No sample; see Table 2.0, Listing of Missed Samples.

9-1

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-937C CAWW- 159 1/14/2015 < 188 < 2.3 < 7.2 < 3.8 < 3.0 < 8.3 < 4.7 < 3.3 < 3.6 < 5.0 CAWW- 604 2/12/2015 193 +/- 108 < 3.6 < 7.8 < 3.5 < 1.7 < 3.8 < 5.1 < 4.9 < 4.9 < 7.1 CAWW- 1070 3/12/2015 244 +/- 86 < 3.1 < 4.2 < 1.3 < 2.5 < 4.3 < 3.6 < 3.5 < 2.7 < 5.7 CAWW- 1684 4/16/2015 < 158 < 3.8 < 6.6 < 3.4 < 2.4 < 2.1 < 4.4 < 3.1 < 2.9 < 6.6 CAWW- 2407 5/13/2015 < 148 < 3.1 < 6.4 < 2.8 < 2.7 < 4.7 < 4.3 < 3.3 < 2.9 < 4.6 CAWW- 3145 6/18/2015 189 +/- 81 < 2.1 < 3.0 < 2.5 < 1.4 < 4.3 < 2.6 < 3.1 < 2.4 < 2.7 CAWW- 3946 7/20/2015 < 176 < 3.5 < 7.1 < 4.1 < 2.6 < 7.6 < 3.5 < 4.0 < 3.0 < 2.7 8/17/2015 NSa Location: CA-WWA-937D 1/14/2015 NSa CAWW- 605 2/12/2015 452 +/- 122 < 2.5 < 6.9 < 2.9 < 2.6 < 6.2 < 5.1 < 3.9 < 3.5 < 6.9 CAWW- 1071 3/12/2015 568 +/- 101 < 2.8 < 6.4 < 2.9 < 1.3 < 7.1 < 5.0 < 3.9 < 3.2 < 10.6 CAWW- 1685 4/15/2015 275 +/- 92 < 1.6 < 3.9 < 1.7 < 1.6 < 2.2 < 2.5 < 1.8 < 1.1 < 4.4 CAWW- 2408 5/13/2015 < 148 < 3.2 < 9.5 < 4.3 < 3.7 < 3.6 < 6.5 < 4.5 < 4.9 < 7.1 CAWW- 3146 6/18/2015 158 +/- 80 < 2.9 < 4.3 < 1.8 < 2.3 < 3.3 < 3.6 < 3.4 < 2.0 < 1.8 CAWW- 3947 7/20/2015 < 176 < 3.7 < 9.7 < 3.0 < 4.2 < 4.5 < 4.6 < 4.8 < 5.2 < 5.3 CAWW- 4547 8/17/2015 < 145 < 3.0 < 7.2 < 1.6 < 1.4 < 4.4 < 3.1 < 3.6 < 3.5 < 11.8 CAWW- 5114 9/16/2015 < 143 < 1.7 < 3.8 < 1.9 < 1.2 < 2.3 < 2.0 < 1.7 < 1.9 < 6.3 CAWW- 5720 10/9/2015 < 149 < 1.2 < 2.9 < 1.6 < 1.2 < 2.3 < 1.8 < 1.1 < 1.1 < 5.0 CAWW- 6556 11/12/2015 194 +/- 81 < 2.3 < 6.0 < 3.5 < 3.3 < 3.6 < 3.9 < 3.9 < 3.8 < 9.7 CAWW- 7012 12/13/2015 < 149 < 2.4 < 4.2 < 1.9 < 2.0 < 4.1 < 2.4 < 3.0 < 2.5 < 3.9 Location: CA-WWA-937E CAWW- 160 1/14/2015 251 +/- 109 < 2.6 < 6.7 < 2.0 < 2.0 < 3.6 < 4.2 < 2.7 < 2.8 < 7.7 CAWW- 606 2/12/2015 < 188 < 4.2 < 7.5 < 3.3 < 2.0 < 3.8 < 3.9 < 3.8 < 3.8 < 5.7 CAWW- 1072 3/12/2015 < 148 < 1.6 < 2.6 < 2.1 < 2.4 < 4.1 < 3.0 < 2.2 < 2.4 < 4.9 CAWW- 1686 4/15/2015 < 158 < 1.6 < 2.7 < 1.7 < 1.8 < 2.6 < 2.6 < 1.5 < 1.7 < 5.3 CAWW- 2510 5/19/2015 < 154 < 2.0 < 5.4 < 2.3 < 1.6 < 3.4 < 3.9 < 3.5 < 3.2 < 5.6 CAWW- 3157 6/19/2015 < 148 < 1.7 < 8.3 < 3.7 < 2.9 < 4.2 < 3.0 < 5.5 < 4.7 < 4.2 CAWW- 3948 7/20/2015 < 176 < 4.6 < 7.2 < 2.9 < 2.6 < 2.7 < 2.4 < 5.0 < 3.0 < 5.4 8/17/2015 NSa a

"NS" = No sample; see Table 2.0, Listing of Missed Samples.

b "NS" = No sample; see Table 2.0, Listing of Missed Samples.

9-2

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-937F CAWW- 161 1/13/2015 < 188 < 3.2 < 5.9 < 2.6 < 1.5 < 3.2 < 5.1 < 3.1 < 2.4 < 6.3 CAWW- 607 2/12/2015 < 154 < 4.0 < 8.7 < 6.0 < 4.2 < 9.2 < 3.9 < 4.9 < 5.8 < 11.3 CAWW- 1073 3/12/2015 < 148 < 2.4 < 5.8 < 1.3 < 0.9 < 5.3 < 2.6 < 2.6 < 3.0 < 3.0 CAWW- 1687 4/15/2015 < 158 < 2.5 < 6.4 < 3.6 < 2.5 < 6.3 < 4.2 < 3.1 < 3.1 < 4.2 CAWW- 2409 5/13/2015 < 148 < 4.1 < 5.0 < 3.6 < 2.5 < 6.4 < 4.0 < 3.7 < 3.1 < 11.5 CAWW- 3158 6/19/2015 < 148 < 2.8 < 13.2 < 2.4 < 5.0 < 4.2 < 5.4 < 5.0 < 4.2 < 4.7 CAWW- 3950 7/20/2015 < 162 < 5.3 < 6.6 < 5.4 < 5.2 < 9.1 < 4.6 < 5.4 < 4.7 < 5.8 8/17/2015 NSa Location: CA-WWA-938 CAWW- 162 1/13/2015 211 +/- 112 < 1.7 < 6.2 < 1.7 < 3.0 < 3.5 < 3.8 < 3.0 < 2.9 < 6.3 CAWW- 608 2/12/2015 < 154 < 3.2 < 10.7 < 5.2 < 5.8 < 4.3 < 6.1 < 5.1 < 5.6 < 14.3 CAWW- 1074 3/12/2015 < 148 < 2.8 < 5.1 < 2.9 < 2.5 < 4.3 < 2.6 < 3.6 < 2.7 < 5.1 CAWW- 1688 4/15/2015 < 158 < 1.9 < 4.0 < 3.2 < 1.8 < 5.8 < 3.7 < 3.1 < 3.7 < 6.2 CAWW- 2511 5/19/2015 < 154 < 3.4 < 7.2 < 4.7 < 3.8 < 5.7 < 6.2 < 5.4 < 4.0 < 5.7 CAWW- 3144 6/18/2015 174 +/- 80 < 4.2 < 10.0 < 2.3 < 2.8 < 3.1 < 3.6 < 6.1 < 2.9 < 5.9 CAWW- 3951 7/20/2015 < 176 < 3.9 < 8.9 < 4.4 < 2.3 < 4.5 < 2.9 < 4.1 < 4.6 < 6.0 8/17/2015 NSa Location: CA-WWA-939R CAWW- 163 1/14/2015 392 +/- 121 < 3.3 < 6.1 < 2.1 < 1.5 < 3.3 < 5.1 < 3.4 < 2.7 < 7.2 CAWW- 565 2/12/2015 241 +/- 121 < 3.4 < 6.6 < 4.8 < 2.4 < 5.4 < 5.2 < 4.2 < 3.2 < 4.4 CAWW- 1075 3/12/2015 200 +/- 84 < 2.8 < 4.5 < 1.5 < 3.3 < 4.1 < 4.0 < 3.6 < 2.7 < 5.1 CAWW- 1689 4/15/2015 414 +/- 98 < 1.9 < 3.7 < 1.2 < 1.4 < 2.5 < 2.4 < 1.5 < 1.5 < 3.3 CAWW- 2512 5/19/2015 376 +/- 109 < 3.5 < 4.2 < 2.9 < 3.3 < 2.7 < 3.0 < 3.5 < 3.2 < 7.2 CAWW- 3159 6/19/2015 316 +/- 93 < 3.3 < 3.5 < 3.6 < 2.4 < 1.8 < 5.6 < 4.5 < 3.8 < 1.8 CAWW- 3952 7/20/2015 548 +/- 112 < 2.5 < 4.7 < 3.1 < 1.2 < 6.3 < 2.8 < 3.9 < 3.1 < 4.7 CAWW- 4548 8/17/2015 355 +/- 90 < 3.6 < 10.2 < 3.9 < 2.8 < 4.1 < 7.3 < 3.9 < 3.9 < 8.7 CAWW- 5115 9/16/2015 281 +/- 86 < 2.1 < 6.6 < 2.8 < 1.9 < 3.1 < 2.1 < 3.2 < 2.6 < 13.9 CAWW- 5721 10/9/2015 179 +/- 81 < 2.9 < 5.3 < 2.2 < 1.8 < 3.6 < 3.0 < 2.6 < 2.8 < 8.1 CAWW- 6557 11/12/2015 266 +/- 85 < 3.2 < 4.8 < 4.5 < 1.9 < 4.7 < 4.5 < 3.6 < 3.4 < 12.0 CAWW- 7013 12/13/2015 276 +/- 85 < 2.4 < 3.8 < 1.6 < 3.1 < 5.0 < 2.0 < 2.8 < 2.2 < 2.1 a

"NS" = No sample; see Table 2.0, Listing of Missed Samples.

9-3

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-940 CAWW- 164 1/14/2015 < 165 < 2.4 < 4.3 < 3.5 < 3.8 < 4.7 < 3.3 < 2.7 < 2.4 < 4.6 CAWW- 609 2/12/2015 < 154 < 1.4 < 4.0 < 1.9 < 1.3 < 3.7 < 2.0 < 1.8 < 1.6 < 2.7 CAWW- 1076 3/12/2015 156 +/- 82 < 1.8 < 5.4 < 2.0 < 2.0 < 5.3 < 4.4 < 3.5 < 2.7 < 9.9 CAWW- 1690 4/15/2015 < 158 < 2.6 < 7.2 < 1.5 < 2.7 < 4.8 < 4.3 < 2.7 < 2.5 < 5.3 CAWW- 2410 5/13/2015 < 148 < 2.1 < 7.0 < 1.7 < 2.0 < 5.8 < 5.4 < 3.0 < 2.2 < 9.0 CAWW- 3160 6/19/2015 < 148 < 3.9 < 5.8 < 4.2 < 3.8 < 6.8 < 6.0 < 4.4 < 3.1 < 2.6 CAWW- 3953 7/20/2015 < 176 < 7.0 < 5.9 < 3.2 < 4.4 < 5.4 < 7.0 < 6.0 < 3.9 < 8.1 CAWW- 4549 8/17/2015 < 145 < 3.1 < 9.1 < 5.2 < 2.0 < 6.3 < 5.8 < 5.3 < 3.3 < 7.3 CAWW- 5116 9/16/2015 < 142 < 1.5 < 4.3 < 1.8 < 1.2 < 2.7 < 2.6 < 1.6 < 1.8 < 7.7 CAWW- 5722 10/9/2015 < 149 < 2.2 < 6.0 < 2.1 < 2.1 < 3.5 < 3.2 < 2.6 < 2.5 < 10.8 CAWW- 6558 11/12/2015 < 143 < 3.1 < 7.1 < 3.6 < 2.4 < 3.9 < 2.8 < 3.2 < 3.9 < 8.3 CAWW- 7014 12/13/2015 < 146 < 3.1 < 2.6 < 3.5 < 1.7 < 5.7 < 3.2 < 4.2 < 2.9 < 2.1 Location: CA-WWA-941 CAWW- 165 1/14/2015 < 165 < 2.4 < 5.3 < 3.9 < 2.1 < 5.0 < 4.5 < 3.2 < 4.3 < 4.4 CAWW- 610 2/12/2015 < 154 < 2.4 < 7.4 < 3.4 < 2.8 < 4.0 < 3.9 < 3.6 < 3.1 < 5.6 CAWW- 1077 3/12/2015 < 148 < 2.8 < 2.3 < 2.4 < 2.2 < 3.7 < 3.1 < 3.3 < 3.0 < 8.6 CAWW- 1691 4/15/2015 < 158 < 2.0 < 4.3 < 2.5 < 2.6 < 3.3 < 4.8 < 3.2 < 3.2 < 12.6 CAWW- 2513 5/19/2015 < 154 < 2.0 < 5.0 < 3.0 < 2.1 < 5.3 < 3.1 < 3.6 < 4.3 < 3.3 CAWW- 3161 6/19/2015 < 148 < 3.2 < 5.4 < 4.5 < 2.8 < 7.1 < 4.0 < 4.3 < 5.1 < 2.0 CAWW- 3954 7/20/2015 < 176 < 2.6 < 4.0 < 4.3 < 3.4 < 5.7 < 4.3 < 4.0 < 3.9 < 5.1 CAWW- 4550 8/17/2015 < 145 < 2.5 < 6.8 < 6.1 < 3.5 < 3.3 < 4.2 < 4.3 < 3.7 < 5.5 CAWW- 5117 9/16/2015 < 143 < 2.7 < 5.6 < 2.4 < 2.0 < 2.6 < 3.8 < 2.8 < 2.3 < 12.9 CAWW- 5723 10/9/2015 < 149 < 1.6 < 4.4 < 2.5 < 1.0 < 3.3 < 2.8 < 1.7 < 1.9 < 7.6 CAWW- 6559 11/12/2015 < 143 < 4.1 < 3.9 < 2.7 < 4.1 < 5.5 < 5.6 < 4.2 < 3.2 < 10.2 CAWW- 7015 12/13/2015 < 146 < 3.7 < 5.0 < 2.3 < 2.6 < 6.0 < 1.7 < 3.5 < 3.8 < 1.8 Location: CA-WWA-GWS CAWW- 166 1/14/2015 226 +/- 113 < 3.6 < 5.4 < 2.8 < 3.9 < 3.8 < 5.0 < 3.6 < 3.0 < 5.8 CAWW- 612 2/12/2015 201 +/- 93 < 3.3 < 6.8 < 3.3 < 2.8 < 6.1 < 4.6 < 3.5 < 3.3 < 3.7 CAWW- 1081 3/12/2015 < 148 < 3.2 < 8.0 < 3.9 < 2.0 < 6.4 < 3.1 < 4.6 < 2.6 < 8.4 CAWW- 1692 4/16/2015 187 +/- 88 < 3.0 < 6.9 < 3.4 < 3.2 < 5.5 < 3.7 < 3.2 < 3.6 < 10.5 CAWW- 2411 5/13/2015 170 +/- 86 < 3.7 < 7.3 < 2.2 < 2.3 < 2.9 < 2.8 < 3.8 < 3.4 < 4.7 CAWW- 3162 6/19/2015 756 +/- 111 < 1.9 < 5.8 < 3.1 < 3.5 < 3.6 < 4.2 < 3.9 < 4.2 < 2.9 a

CAWW- 4272 6/19/2015 771 +/- 110 CAWW- 3955 7/20/2015 550 +/- 112 < 4.6 < 6.0 < 2.7 < 2.3 < 5.7 < 3.0 < 4.3 < 2.8 < 6.6 CAWW- 4551 8/17/2015 271 +/- 86 < 4.1 < 6.9 < 2.1 < 2.5 < 3.9 < 3.1 < 3.9 < 4.0 < 4.7 CAWW- 5118 9/16/2015 226 +/- 83 < 1.3 < 3.1 < 1.3 < 1.1 < 2.2 < 2.1 < 1.4 < 1.4 < 7.8 CAWW- 5724 10/9/2015 < 149 < 2.5 < 5.2 < 1.9 < 2.2 < 2.3 < 2.8 < 2.6 < 2.7 < 13.0 CAWW- 6560 11/12/2015 161 +/- 80 < 2.4 < 7.0 < 2.1 < 3.1 < 4.2 < 3.8 < 3.9 < 2.6 < 9.5 CAWW- 7016 12/13/2015 248 +/- 83 < 2.7 < 3.6 < 2.4 < 2.5 < 8.0 < 3.5 < 3.6 < 3.8 < 2.0 a

No gamma isotopic requested.

9-4

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-OW-4 CAWW- 153 1/13/2015 260 +/- 109 < 1.7 < 5.9 < 2.2 < 2.3 < 4.5 < 2.4 < 2.4 < 3.3 < 4.4 CAWW- 1693 4/16/2015 213 +/- 89 < 1.7 < 4.7 < 1.1 < 1.8 < 3.0 < 2.8 < 2.1 < 1.9 < 4.3 CAWW- 4090 7/27/2015 284 +/- 91 < 3.4 < 7.2 < 2.1 < 2.2 < 3.4 < 3.5 < 3.2 < 4.0 < 2.7 Location: CA-WWA-OW-5 CAWW- 154 1/13/2015 < 188 < 2.1 < 8.0 < 2.9 < 1.7 < 4.6 < 4.7 < 4.2 < 2.5 < 6.7 CAWW- 1694 4/16/2015 236 +/- 90 < 1.9 < 4.5 < 2.9 < 2.6 < 4.5 < 2.3 < 2.3 < 2.6 < 8.2 CAWW- 4091 7/27/2015 244 +/- 89 < 4.1 < 4.9 < 2.9 < 2.3 < 7.1 < 2.5 < 3.7 < 3.3 < 3.8 Location: CA-WWA-U1MW-001 CAWW- 184 1/19/2015 < 184 < 3.2 < 9.0 < 3.4 < 3.3 < 2.2 < 4.0 < 3.3 < 3.0 < 6.9 CAWW- 1784 4/20/2015 < 150 < 3.2 < 4.2 < 3.2 < 2.7 < 2.2 < 3.9 < 2.9 < 3.0 < 6.9 CAWW- 3884 7/16/2015 < 155 < 2.9 < 6.6 < 5.1 < 3.9 < 8.8 < 2.8 < 4.8 < 5.6 < 8.3 CAWW- 5726 10/8/2015 < 149 < 0.7 < 2.8 < 1.5 < 0.7 < 2.0 < 2.0 < 1.3 < 1.1 < 6.7 Location: CA-WWA-U1MW-002 CAWW- 304 1/26/2015 < 181 < 2.5 < 5.5 < 2.2 < 1.3 < 1.8 < 2.8 < 3.1 < 1.4 < 5.5 CAWW- 2030 4/30/2015 < 159 < 1.2 < 2.4 < 0.9 < 0.9 < 2.6 < 2.0 < 1.3 < 1.3 < 3.8 CAWW- 3956 7/21/2015 < 176 < 3.2 < 5.8 < 3.3 < 3.4 < 6.1 < 3.5 < 4.4 < 5.0 < 5.0 CAWW- 5728 10/8/2015 < 149 < 1.4 < 2.9 < 1.2 < 1.2 < 3.0 < 2.6 < 1.6 < 1.6 < 5.3 Location: CA-WWA-U1MW-004 CAWW- 180 1/19/2015 < 184 < 2.4 < 2.4 < 1.2 < 1.0 < 3.4 < 2.2 < 2.2 < 1.6 < 2.3 CAWW- 1429 4/3/2015 < 148 < 1.1 < 2.7 < 1.2 < 1.4 < 2.8 < 1.9 < 1.3 < 1.3 < 5.8 CAWW- 3677 7/13/2015 < 153 < 3.9 < 5.0 < 5.3 < 1.5 < 8.2 < 5.4 < 4.2 < 5.1 < 5.4 CAWW- 5516 10/5/2015 < 144 < 3.8 < 9.8 < 4.0 < 2.4 < 4.2 < 3.1 < 3.7 < 4.0 < 13.9 Location: CA-WWA-U1MW-005 CAWW- 181 1/19/2015 < 184 < 3.4 < 5.5 < 2.8 < 2.7 < 3.7 < 2.7 < 3.3 < 3.8 < 3.4 CAWW- 1430 4/3/2015 < 148 < 1.0 < 2.2 < 1.2 < 0.7 < 2.2 < 1.5 < 1.1 < 1.3 < 2.9 CAWW- 3678 7/13/2015 < 153 < 3.3 < 5.0 < 1.7 < 2.5 < 6.4 < 2.4 < 3.3 < 2.3 < 5.1 CAWW- 5517 10/5/2015 < 144 < 3.1 < 9.7 < 2.5 < 2.0 < 3.9 < 4.2 < 3.5 < 3.3 < 12.1 Location: CA-WWA-U1MW-006 CAWW- 307 1/27/2015 < 181 < 1.6 < 1.8 < 1.5 < 1.3 < 2.3 < 2.0 < 1.4 < 2.0 < 3.7 CAWW- 2028 4/29/2015 < 159 < 1.4 < 2.9 < 1.5 < 1.5 < 2.1 < 1.7 < 1.3 < 1.6 < 6.6 CAWW- 3882 7/16/2015 < 155 < 3.3 < 6.7 < 3.7 < 3.1 < 4.6 < 3.5 < 4.1 < 4.6 < 6.5 CAWW- 5730 10/8/2015 < 149 < 1.2 < 2.4 < 1.2 < 1.0 < 2.9 < 1.8 < 1.3 < 1.5 < 4.9 9-5

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-U1MW-010 CAWW- 223 1/23/2015 < 173 < 3.9 < 6.4 < 3.4 < 2.4 < 4.5 < 5.0 < 3.7 < 4.7 < 9.8 CAWW- 1790 4/21/2015 < 150 < 3.2 < 5.9 < 3.9 < 2.1 < 3.7 < 2.9 < 3.1 < 3.1 < 8.3 CAWW- 3883 7/16/2015 < 155 < 5.4 < 7.2 < 4.2 < 5.9 < 8.6 < 7.9 < 5.8 < 6.4 < 13.5 CAWW- 5725 10/7/2015 < 149 < 1.4 < 4.3 < 1.3 < 1.4 < 3.5 < 2.5 < 1.6 < 2.0 < 5.2 Location: CA-WWA-U1MW-012 CAWW- 306 1/27/2015 < 181 < 2.3 < 3.6 < 2.5 < 3.0 < 4.1 < 2.5 < 3.5 < 3.4 < 7.1 CAWW- 2027 4/29/2015 < 159 < 2.5 < 2.5 < 2.0 < 1.7 < 4.0 < 2.4 < 2.5 < 1.7 < 7.9 CAWW- 4082 7/24/2015 < 146 < 1.5 < 4.6 < 2.5 < 1.7 < 3.8 < 1.7 < 3.6 < 2.5 < 5.3 CAWW- 5729 10/8/2015 < 149 < 1.9 < 2.9 < 1.5 < 1.6 < 3.0 < 2.3 < 1.6 < 1.7 < 3.2 Location: CA-WWA-U1MW-013 CAWW- 186 1/20/2015 < 184 < 4.5 < 5.9 < 4.1 < 2.5 < 7.9 < 4.7 < 4.9 < 3.6 < 3.5 CAWW- 1786 4/21/2015 < 150 < 4.1 < 8.9 < 2.8 < 2.7 < 5.9 < 6.6 < 3.6 < 3.4 < 4.5 CAWW- 4077 7/21/2015 < 146 < 4.2 < 7.5 < 3.9 < 2.3 < 4.7 < 5.2 < 3.5 < 3.9 < 5.4 CAWW- 5727 10/8/2015 < 149 < 1.8 < 4.2 < 1.9 < 1.3 < 3.7 < 2.5 < 1.9 < 2.3 < 2.8 Location: CA-WWA-U1MW-014 CAWW- 310 1/27/2015 224 +/- 108 < 2.5 < 4.4 < 3.0 < 1.4 < 3.8 < 3.1 < 2.5 < 2.4 < 4.4 CAWW- 1513 4/6/2015 215 +/- 84 < 2.9 < 3.5 < 1.3 < 1.9 < 3.4 < 2.5 < 2.6 < 2.5 < 4.1 CAWW- 4085 7/24/2015 < 146 < 3.4 < 5.0 < 1.3 < 1.7 < 4.1 < 3.9 < 2.7 < 3.8 < 5.2 CAWW- 5518 10/5/2015 280 +/- 86 < 3.7 < 8.4 < 3.9 < 3.8 < 6.3 < 6.0 < 3.1 < 4.0 < 9.1 Location: CA-WWA-U1MW-015 CAWW- 182 1/19/2015 < 184 < 2.1 < 4.2 < 1.7 < 1.2 < 2.4 < 1.5 < 2.1 < 2.2 < 3.9 CAWW- 1787 4/20/2015 < 150 < 2.7 < 4.5 < 2.5 < 1.8 < 2.5 < 3.5 < 2.4 < 2.3 < 5.4 CAWW- 3679 7/13/2015 < 153 < 0.8 < 7.0 < 1.7 < 2.5 < 4.8 < 2.9 < 3.1 < 3.3 < 5.7 CAWW- 5519 10/5/2015 < 144 < 3.1 < 7.5 < 3.6 < 1.7 < 6.4 < 4.7 < 3.5 < 3.4 < 6.0 Location: CA-WWA-U1MW-016 CAWW- 185 1/19/2015 < 184 < 2.8 < 3.0 < 2.9 < 3.0 < 4.5 < 3.3 < 2.4 < 2.4 < 3.0 CAWW- 1428 4/3/2015 < 148 < 1.3 < 3.0 < 1.1 < 1.3 < 2.1 < 2.0 < 1.3 < 1.4 < 3.7 CAWW- 3881 7/15/2015 < 155 < 3.5 < 5.0 < 2.5 < 3.1 < 4.6 < 6.2 < 4.2 < 4.7 < 3.0 CAWW- 5520 10/5/2015 < 144 < 3.5 < 8.0 < 3.8 < 2.8 < 5.3 < 3.8 < 3.9 < 2.3 < 13.0 Location: CA-WWA-U1MW-017 CAWW- 308 1/27/2015 < 181 < 3.6 < 8.3 < 2.4 < 3.2 < 5.9 < 4.5 < 3.6 < 2.3 < 4.9 CAWW- 1514 4/6/2015 < 147 < 0.8 < 2.6 < 0.9 < 1.3 < 1.3 < 1.6 < 1.3 < 1.2 < 2.4 CAWW- 4083 7/24/2015 < 146 < 3.6 < 7.0 < 3.3 < 3.4 < 1.9 < 2.7 < 3.3 < 3.9 < 2.9 Location: CA-WWA-U1MW-18 CAWW- 309 1/27/2015 < 181 < 4.3 < 5.2 < 3.3 < 2.7 < 1.9 < 5.5 < 3.5 < 3.6 < 5.4 CAWW- 1515 4/6/2015 227 +/- 85 < 2.0 < 2.9 < 3.0 < 2.4 < 1.5 < 2.4 < 2.8 < 1.7 < 3.9 CAWW- 4084 7/24/2015 197 +/- 87 < 3.2 < 4.8 < 3.8 < 2.8 < 6.2 < 3.6 < 3.9 < 4.7 < 3.8 a

CAWW- 5521 10/5/2015 157 +/- 80 a

Gamma isotopic not requested.

9-6

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-U1MW-19 CAWW- 301 1/26/2015 209 +/- 107 < 2.9 < 10.8 < 2.7 < 3.0 < 6.1 < 6.0 < 4.2 < 4.6 < 7.2 CAWW- 1517 4/6/2015 344 +/- 90 < 1.0 < 3.0 < 1.3 < 1.5 < 2.2 < 1.8 < 1.3 < 1.0 < 3.5 CAWW- 4079 7/22/2015 176 +/- 86 < 3.7 < 4.2 < 4.0 < 3.3 < 3.5 < 2.6 < 4.3 < 3.8 < 4.2 a

CAWW- 5522 10/5/2015 < 150 Location: CA-WWA-U1MW-20 CAWW- 296 1/26/2015 < 181 < 4.7 < 11.6 < 6.3 < 2.9 < 9.1 < 5.9 < 5.0 < 6.0 < 7.8 CAWW- 1712 4/17/2015 < 158 < 1.5 < 3.2 < 1.7 < 1.7 < 2.9 < 2.0 < 1.7 < 1.5 < 4.6 CAWW- 4081 7/22/2015 < 146 < 5.1 < 5.2 < 3.9 < 3.9 < 12.1 < 6.6 < 6.0 < 4.1 < 7.9 a

CAWW- 5523 10/5/2015 < 150 Location: CA-WWA-U1MW-021 CAWW- 302 1/26/2015 < 181 < 2.7 < 6.8 < 1.9 < 2.5 < 4.8 < 4.0 < 3.5 < 3.8 < 6.6 CAWW- 1518 4/6/2015 < 147 < 1.2 < 2.1 < 1.4 < 1.2 < 1.8 < 2.2 < 1.3 < 1.3 < 2.4 CAWW- 4078 7/22/2015 < 146 < 3.1 < 5.0 < 3.2 < 1.6 < 2.4 < 2.4 < 3.3 < 3.9 < 4.2 Location: CA-WWA-U1MW-022 CAWW- 303 1/26/2015 < 181 < 4.4 < 8.3 < 3.5 < 3.6 < 6.4 < 4.4 < 5.0 < 5.0 < 3.8 CAWW- 1519 4/6/2015 < 147 < 1.2 < 2.1 < 1.2 < 0.8 < 2.2 < 1.2 < 1.1 < 1.3 < 2.4 CAWW- 4080 7/22/2015 < 146 < 3.2 < 5.4 < 2.1 < 2.4 < 6.9 < 3.2 < 3.8 < 2.7 < 2.7 Location: CA-WWA-U1MW-023 CAWW- 300 1/26/2015 < 181 < 1.9 < 7.4 < 3.1 < 2.5 < 5.8 < 4.3 < 3.1 < 2.5 < 3.1 CAWW- 1713 4/17/2015 < 158 < 2.3 < 3.7 < 2.7 < 2.1 < 2.4 < 2.7 < 2.6 < 2.2 < 7.0 CAWW- 3885 7/17/2015 < 155 < 2.6 < 5.8 < 3.8 < 2.7 < 4.8 < 2.2 < 3.8 < 2.9 < 5.7 Location: CA-WWA-U1MW-024 CAWW- 299 1/26/2015 < 181 < 3.3 < 5.9 < 2.9 < 1.8 < 4.2 < 3.8 < 3.1 < 3.3 < 4.8 CAWW- 1714 4/17/2015 < 158 < 3.5 < 5.7 < 4.0 < 3.2 < 5.2 < 2.9 < 3.4 < 3.3 < 2.1 CAWW- 3887 7/17/2015 < 155 < 4.9 < 10.4 < 5.1 < 4.1 < 4.9 < 5.9 < 5.3 < 4.6 < 10.3 Location: CA-WWA-U1MW-025 CAWW- 298 1/26/2015 < 181 < 2.5 < 6.1 < 2.5 < 3.3 < 4.5 < 3.3 < 4.0 < 3.8 < 2.6 CAWW- 1715 4/17/2015 < 158 < 2.4 < 8.0 < 2.3 < 2.0 < 4.7 < 2.6 < 2.2 < 2.6 < 9.3 CAWW- 3888 7/17/2015 < 155 < 3.7 < 6.8 < 3.6 < 1.9 < 4.8 < 6.3 < 4.1 < 5.6 < 8.0 a

Gamma isotopic not requested.

9-7

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-U1MW-26 CAWW- 297 1/26/2015 < 181 < 4.3 < 7.0 < 4.1 < 3.0 < 4.1 < 2.9 < 4.2 < 4.3 < 5.3 CAWW- 1716 4/17/2015 < 158 < 2.7 < 5.7 < 2.7 < 3.3 < 3.6 < 4.2 < 3.3 < 2.8 < 10.2 CAWW- 3889 7/17/2015 < 155 < 4.2 < 9.4 < 4.6 < 2.5 < 5.8 < 3.9 < 4.1 < 4.0 < 5.5 Location: CA-WWA-U1MW-27 CAWW- 183 1/19/2015 < 184 < 2.7 < 5.2 < 2.0 < 2.2 < 5.6 < 2.4 < 3.9 < 3.7 < 5.2 CAWW- 1788 4/20/2015 < 150 < 2.3 < 4.3 < 2.2 < 1.6 < 3.2 < 2.9 < 2.2 < 2.1 < 8.2 CAWW- 3674 7/13/2015 < 153 < 6.8 < 8.4 < 5.0 < 5.1 < 5.6 < 7.0 < 5.7 < 5.5 < 10.9 Location: CA-WWA-U1MW-28 1/26/2015 NSa 4/20/2015 NSa 7/13/2015 NSa Location: CA-WWA-U1MW-29 CAWW- 224 1/23/2015 < 173 < 3.9 < 6.4 < 3.4 < 2.4 < 4.5 < 5.0 < 3.7 < 4.7 < 9.8 CAWW- 1789 4/21/2015 < 150 < 3.6 < 5.8 < 3.4 < 2.3 < 3.6 < 4.8 < 3.2 < 2.2 < 7.8 CAWW- 3957 7/18/2015 < 176 < 5.2 < 5.6 < 4.6 < 3.9 < 4.0 < 4.1 < 5.7 < 3.7 < 7.9 Location: CA-WWA-U1MW-30 CAWW- 305 1/26/2015 < 181 < 2.4 < 4.4 < 1.7 < 2.4 < 3.8 < 4.6 < 3.2 < 3.1 < 2.9 CAWW- 2029 4/30/2015 < 159 < 2.8 < 6.4 < 2.4 < 2.3 < 5.5 < 5.2 < 3.9 < 2.8 < 11.1 CAWW- 4092 7/27/2015 < 146 < 3.5 < 7.2 < 2.5 < 2.3 < 5.6 < 4.5 < 3.7 < 3.2 < 4.3 Location: CA-WWA-U1MW-31 CAWW- 149 1/12/2015 6269 +/- 295 < 4.0 < 4.9 < 2.9 < 2.5 < 6.5 < 4.9 < 3.4 < 3.7 < 5.9 CAWW- 585 2/13/2015 4553 +/- 278 < 2.8 < 5.1 < 3.3 < 2.3 < 3.0 < 2.8 < 3.3 < 4.6 < 3.0 CAWW- 1078 3/13/2015 7012 +/- 254 < 2.5 < 4.9 < 1.7 < 2.0 < 2.3 < 1.7 < 2.7 < 2.7 < 2.3 CAWW- 1695 4/14/2015 4931 +/- 217 < 1.8 < 4.2 < 2.2 < 1.7 < 2.9 < 2.9 < 1.7 < 1.1 < 5.9 CAWW- 2412 5/12/2015 9213 +/- 284 < 1.7 < 2.9 < 2.7 < 2.8 < 2.4 < 2.5 < 3.2 < 3.5 < 8.8 CAWW- 3143 6/17/2015 2215 +/- 152 < 2.7 < 4.5 < 3.2 < 2.6 < 3.0 < 4.8 < 3.2 < 3.4 < 3.4 CAWW- 3625 7/10/2015 1683 +/- 151 < 1.4 < 5.2 < 3.6 < 3.8 < 5.2 < 4.0 < 3.6 < 3.9 < 6.4 b

CAWW- 5745 10/12/2015 1960 +/- 145 a

"NS = No sample; see Table 2.0, Listing of Missed Samples.

b Gamma isotopic not requested.

9-8

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-U1MW-34 CAWW- 151 1/12/2015 7748 +/- 325 < 2.0 < 5.9 < 2.0 < 1.6 < 1.9 < 2.8 < 2.6 < 2.6 < 5.2 CAWW- 586 2/13/2015 6701 +/- 326 < 6.1 < 8.8 < 7.1 < 2.4 < 7.6 < 4.7 < 6.4 < 5.3 < 13.7 CAWW- 1079 3/13/2015 6270 +/- 241 < 2.4 < 3.4 < 1.8 < 2.4 < 3.3 < 5.1 < 3.3 < 3.5 < 8.0 CAWW- 1696 4/14/2015 3691 +/- 192 < 3.0 < 3.4 < 2.2 < 2.3 < 4.0 < 4.2 < 3.2 < 2.3 < 5.6 CAWW- 2413 5/12/2015 2608 +/- 165 < 1.9 < 4.1 < 3.3 < 2.5 < 2.1 < 4.1 < 3.4 < 3.3 < 6.0 CAWW- 3129 6/17/2015 1518 +/- 132 < 3.4 < 7.3 < 2.2 < 3.0 < 6.1 < 2.6 < 3.8 < 4.2 < 2.4 CAWW- 3626 7/10/2015 1541 +/- 147 < 2.2 < 5.8 < 3.4 < 2.1 < 3.5 < 4.6 < 3.4 < 3.1 < 9.6 a

CAWW- 5746 10/12/2015 1151 +/- 120 Location: CA-WWA-U1MW-36 CAWW- 152 1/12/2015 13295 +/- 418 < 3.7 < 3.2 < 2.4 < 2.0 < 5.6 < 4.0 < 3.6 < 2.3 < 4.7 CAWW- 587 2/13/2015 12732 +/- 434 < 5.3 < 8.8 < 4.0 < 3.6 < 6.6 < 3.7 < 3.6 < 4.5 < 6.5 CAWW- 1080 3/13/2015 10074 +/- 300 < 3.6 < 7.8 < 2.2 < 3.6 < 5.0 < 3.4 < 4.1 < 2.7 < 5.9 CAWW- 1698 4/14/2015 3669 +/- 191 < 1.5 < 3.3 < 1.5 < 0.9 < 2.7 < 1.9 < 1.5 < 1.8 < 3.2 CAWW- 2414 5/12/2015 4360 +/- 204 < 3.5 < 7.1 < 3.6 < 3.3 < 4.5 < 4.9 < 4.7 < 4.8 < 5.9 CAWW- 3128 6/17/2015 2437 +/- 158 < 2.7 < 6.1 < 2.2 < 3.8 < 6.4 < 4.6 < 4.2 < 2.3 < 5.0 CAWW- 3627 7/10/2015 1712 +/- 152 < 2.9 < 5.2 < 3.0 < 2.9 < 2.9 < 3.2 < 4.4 < 3.2 < 9.9 a

CAWW- 5747 10/12/2015 1614 +/- 135 Location: CA-WWA-U1MW-39 CAWW- 1697 4/14/2015 < 158 < 2.7 < 6.4 < 2.6 < 1.5 < 5.4 < 2.6 < 2.6 < 2.9 < 4.6 CAWW- 2415 5/12/2015 < 148 < 4.0 < 6.6 < 4.4 < 3.0 < 4.0 < 2.3 < 4.4 < 3.8 < 6.7 CAWW- 3126 6/16/2015 < 143 < 3.4 < 5.1 < 2.8 < 2.2 < 4.8 < 4.5 < 3.6 < 2.9 < 2.0 CAWW- 3628 7/10/2015 < 154 < 5.7 < 5.1 < 4.9 < 3.1 < 5.6 < 5.7 < 4.6 < 3.7 < 10.7 a

CAWW- 5717 10/8/2015 < 149 a

Gamma isotopic not requested.

9-9

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-U1MW-47 CAWW- 2417 5/12/2015 5325 +/- 222 < 2.5 < 6.8 < 3.2 < 2.9 < 4.5 < 4.1 < 3.3 < 2.6 < 5.6 CAWW- 3123 6/16/2015 1783 +/- 140 < 3.5 < 6.0 < 3.2 < 2.5 < 5.8 < 3.5 < 3.5 < 2.8 < 2.5 CAWW- 3676 7/13/2015 1914 +/- 148 < 1.6 < 5.2 < 1.9 < 0.9 < 1.6 < 2.9 < 2.9 < 2.4 < 2.4 a

CAWW- 5524 10/5/2015 1192 +/- 123 Location: CA-WWA-U1MW-58 CAWW- 150 1/12/2015 7121 +/- 312 < 2.8 < 4.3 < 1.9 < 2.2 < 3.1 < 3.0 < 2.4 < 2.9 < 2.2 CAWW- 1699 4/14/2015 3669 +/- 191 < 3.4 < 6.8 < 3.4 < 3.4 < 2.4 < 5.6 < 3.0 < 2.5 < 7.1 CAWW- 2418 5/12/2015 2911 +/- 172 < 2.1 < 3.5 < 1.8 < 1.1 < 2.8 < 3.4 < 3.2 < 3.6 < 7.4 CAWW- 3127 6/17/2015 2441 +/- 158 < 4.4 < 8.8 < 3.3 < 3.8 < 6.4 < 4.3 < 4.1 < 4.5 < 4.7 CAWW- 3629 7/10/2015 1957 +/- 158 < 3.0 < 7.7 < 3.1 < 1.6 < 3.7 < 5.1 < 4.0 < 3.9 < 7.7 a

CAWW- 5748 10/12/2015 1333 +/- 126 Location: CA-WWA-U1MW-59 CAWW- 1700 4/14/2015 < 158 < 3.1 < 7.0 < 2.5 < 2.1 < 5.4 < 5.2 < 3.7 < 3.1 < 13.4 CAWW- 2419 5/12/2015 < 148 < 2.3 < 6.2 < 2.9 < 1.9 < 4.8 < 4.3 < 2.9 < 3.3 < 8.3 CAWW- 3125 6/16/2015 < 143 < 4.6 < 11.9 < 4.5 < 2.9 < 7.5 < 3.4 < 4.7 < 3.5 < 5.0 CAWW- 3880 7/15/2015 < 155 < 3.6 < 6.3 < 3.1 < 3.5 < 5.3 < 4.4 < 3.8 < 5.7 < 7.8 CAWW- 5800 10/15/2015 < 148 < 3.8 < 7.6 < 2.8 < 3.4 < 5.6 < 4.1 < 3.1 < 3.7 < 3.5 a

Gamma isotopic not requested.

9-10

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-U2MW-2S CAWW- 47 1/8/2015 < 172 < 4.0 < 6.5 < 5.8 < 3.9 < 12.1 < 8.7 < 6.1 < 5.4 < 5.0 CAWW- 1791 4/20/2015 < 150 < 2.3 < 3.0 < 2.1 < 1.6 < 5.2 < 3.2 < 2.6 < 2.0 < 5.6 CAWW- 3891 7/16/2015 < 155 < 5.8 < 6.0 < 4.2 < 4.6 < 8.0 < 5.4 < 6.3 < 4.2 < 14.1 a

CAWW- 5716 10/7/2015 < 149 Location: CA-WWA-U2MW-5S CAWW- 187 1/19/2015 < 184 < 2.4 < 7.1 < 3.6 < 2.3 < 4.7 < 4.3 < 3.6 < 3.1 < 8.3 CAWW- 1793 4/20/2015 < 150 < 4.7 < 9.7 < 3.4 < 3.3 < 11.9 < 9.2 < 4.9 < 3.9 < 10.1 CAWW- 3890 7/15/2015 < 155 < 3.0 < 4.2 < 1.7 < 1.9 < 3.6 < 3.2 < 3.6 < 2.4 < 7.2 a

CAWW- 5715 10/7/2015 < 149 Location: CA-WWA-U2MW-8 CAWW- 225 1/22/2015 < 173 < 3.4 < 7.2 < 2.0 < 3.3 < 8.3 < 6.8 < 5.5 < 3.2 < 8.4 CAWW- 1796 4/21/2015 < 150 < 2.3 < 5.3 < 3.3 < 1.6 < 4.2 < 2.7 < 2.6 < 2.9 < 3.8 CAWW- 3958 7/18/2015 < 176 < 3.9 < 4.4 < 4.4 < 4.1 < 8.0 < 6.8 < 5.1 < 4.0 < 5.3 a

CAWW- 5749 10/12/2015 < 149 Location: CA-WWA-U2MW-9 CAWW- 226 1/22/2015 < 173 < 5.5 < 7.0 < 5.1 < 4.2 < 10.4 < 7.1 < 5.2 < 6.3 < 11.5 CAWW- 1795 4/21/2015 < 150 < 2.5 < 3.6 < 3.0 < 2.6 < 2.7 < 3.1 < 2.6 < 2.7 < 4.3 CAWW- 3959 7/18/2015 < 176 < 4.5 < 3.9 < 2.5 < 3.5 < 8.0 < 3.5 < 4.9 < 4.5 < 5.4 Location: CA-WWA-U2MW-10 CAWW- 228 1/23/2015 < 173 < 2.4 < 3.9 < 3.0 < 2.5 < 4.3 < 2.7 < 2.5 < 3.2 < 5.6 CAWW- 1794 4/21/2015 < 150 < 3.3 < 3.9 < 3.0 < 2.0 < 3.1 < 4.3 < 2.7 < 2.7 < 6.8 CAWW- 4086 7/24/2015 < 146 < 1.2 < 3.2 < 1.5 < 2.9 < 3.7 < 2.8 < 3.0 < 2.3 < 4.6 CAWW- 5731 10/8/2015 < 149 < 1.4 < 3.4 < 1.0 < 0.8 < 1.8 < 2.4 < 1.2 < 1.1 < 2.6 Location: CA-WWA-U2MW-12 CAWW- 227 1/23/2015 < 173 < 3.1 < 3.8 < 2.4 < 2.4 < 5.7 < 3.4 < 3.3 < 3.4 < 3.3 CAWW- 1792 4/20/2015 < 150 < 2.4 < 8.6 < 3.4 < 2.2 < 5.0 < 5.4 < 3.3 < 4.2 < 7.8 CAWW- 3892 7/16/2015 < 155 < 4.1 < 11.5 < 2.5 < 2.9 < 4.7 < 4.1 < 4.2 < 5.1 < 4.2 Location: CA-WWA-U2MW-16 CAWW- 188 1/19/2015 < 184 < 2.5 < 4.7 < 2.9 < 2.4 < 2.0 < 2.7 < 2.9 < 1.6 < 2.8 CAWW- 1427 4/3/2015 < 148 < 3.1 < 6.3 < 3.2 < 2.3 < 5.5 < 2.2 < 3.1 < 2.0 < 6.7 CAWW- 3630 7/10/2015 < 154 < 2.7 < 6.8 < 2.9 < 2.0 < 7.1 < 4.8 < 3.6 < 4.2 < 9.3 a

CAWW- 5713 10/7/2015 < 149 Location: CA-WWA-F-005 CAWW- 104 1/9/2015 < 173 < 2.1 < 3.1 < 2.1 < 2.0 < 4.1 < 2.3 < 2.5 < 1.4 < 3.0 CAWW- 1415 4/1/2015 < 148 < 1.6 < 6.2 < 2.5 < 2.2 < 2.3 < 2.5 < 2.2 < 2.5 < 7.0 CAWW- 3392 6/29/2015 < 143 < 2.6 < 3.1 < 2.8 < 3.0 < 3.2 < 2.4 < 3.3 < 2.5 < 3.2 CAWW- 5920 10/16/2015 < 142 < 3.5 < 9.2 < 6.4 < 6.3 < 14.9 < 4.9 < 6.6 < 3.3 < 6.7 Location: CA-WWA-F-015 CAWW- 106 1/9/2015 < 173 < 1.6 < 5.7 < 1.8 < 2.0 < 3.5 < 3.5 < 2.4 < 2.3 < 4.3 CAWW- 1416 4/1/2015 < 148 < 3.6 < 6.0 < 1.9 < 2.2 < 5.2 < 3.5 < 3.2 < 3.5 < 4.1 CAWW- 3393 6/29/2015 < 143 < 2.0 < 2.7 < 2.2 < 1.6 < 2.8 < 2.9 < 2.9 < 2.1 < 4.3 CAWW- 5921 10/16/2015 < 142 < 5.3 < 7.2 < 4.0 < 6.0 < 8.2 < 3.4 < 5.7 < 5.6 < 9.0 a

Gamma isotopic not requested.

9-11

Table 10a. Bottom sediments, analyses for gamma-emitting isotopes.

Collection: Semiannually Units: pCi/kg dry Location CA-AQS-A Lab Code Req. LLD CABS- 1888 CABS- 6161 Date Collected - 04-23-15 10-22-15 K-40 - 13781 +/- 666 15245 +/- 741 Mn-54 - < 17.1 < 29.8 Fe-59 - < 26.3 < 60.4 Co-58 - < 17.5 < 26.0 Co-60 - < 12.4 < 24.0 Zr-Nb-95 - < 20.9 < 47.1 Cs-134 150 < 16.5 < 18.6 Cs-137 180 < 19.7 < 27.4 Ba-La-140 - < 17.5 < 68.9 Location CA-AQS-C Lab Code Req. LLD CABS- 1889 CABS- 6162 Date Collected - 04-23-15 10-22-15 K-40 - 14471 +/- 713 12009 +/- 667 Mn-54 - < 25.5 < 24.5 Fe-59 - < 26.6 < 40.1 Co-58 - < 22.4 < 28.6 Co-60 - < 8.5 < 21.7 Zr-Nb-95 - < 38.7 < 52.9 Cs-134 150 < 20.6 < 23.1 Cs-137 180 76 +/- 30.7 < 23.4 Ba-La-140 - < 27.4 < 121.0 10-1

Table 10b. Shoreline sediments, analyses for gamma-emitting isotopes.

Collection: Semiannually Units: pCi/kg dry Location CA-AQS-A Lab Code Req. LLD CASS- 1886 CASS- 6159 Date Collected - 04-23-15 10-22-15 K-40 - 13063 +/- 674 14781 +/- 691 Mn-54 - < 18.9 < 24.6 Fe-59 - < 23.2 < 80.6 Co-58 - < 16.1 < 33.1 Co-60 - < 8.4 < 19.4 Zr-Nb-95 - < 38.1 < 56.2 Cs-134 150 < 20.0 < 19.2 Cs-137 180 < 21.9 < 24.2 Ba-La-140 - < 30.9 < 271.6 Location CA-AQS-C Lab Code Req. LLD CASS- 1887 CASS- 6160 Date Collected - 04-23-15 10-22-15 K-40 - 14968 +/- 684 12957 +/- 603 Mn-54 - < 24.3 < 22.7 Fe-59 - < 60.4 < 59.5 Co-58 - < 19.6 < 23.8 Co-60 - < 9.3 < 19.0 Zr-Nb-95 - < 28.8 < 49.9 Cs-134 150 < 20.0 < 18.4 Cs-137 180 90 +/- 24.5 < 17.1 Ba-La-140 - < 68.0 < 59.0 10-2

Table 11. Fish, analyses for gamma-emitting isotopes.

Collection: Semiannually Units: pCi/kg wet Location CA-AQF-A Lab Code Req. LLD CAF- 1876 CAF- 1877 CAF- 1878 CAF- 1879 CAF- 1880 Date Collected 04-23-15 04-23-15 04-23-15 04-23-15 04-23-15 Sample Type River Bigmouth Freshwater Common Carp Silver Carp Carpsucker Buffalo Drum K-40 - 3766 +/- 424 2353 +/- 328 2349 +/- 337 2986 +/- 396 2224 +/- 367 Mn-54 130 < 11.7 < 12.8 < 13.2 < 13.7 < 14.0 Fe-59 260 < 48.9 < 44.4 < 42.6 < 48.3 < 52.3 Co-58 130 < 10.9 < 18.9 < 17.7 < 9.9 < 11.0 Co-60 130 < 12.7 < 12.9 < 10.7 < 12.4 < 17.7 Zn-65 260 < 16.4 < 24.2 < 31.4 < 9.7 < 24.6 Cs-134 130 < 13.6 < 16.3 < 14.3 < 13.6 < 19.9 Cs-137 150 < 15.3 < 10.8 < 10.2 < 16.5 < 18.3 Lab Code CAF- 6148 CAF- 6149 CAF- 6150 CAF- 6151 CAF- 6152 Date Collected 10-22-15 10-22-15 10-22-15 10-22-15 10-22-15 Sample Type Freshwater Common Carp Black Buffalo Channel Catfish Silver Carp Drum K-40 - 2950 +/- 352 2949 +/- 387 3030 +/- 358 3104 +/- 350 2340 +/- 325 Mn-54 130 < 12.8 < 16.1 < 15.3 < 12.4 < 12.0 Fe-59 260 < 27.2 < 37.9 < 29.7 < 29.0 < 39.6 Co-58 130 < 18.1 < 17.6 < 16.1 < 14.8 < 13.5 Co-60 130 < 13.9 < 10.3 < 7.5 < 9.8 < 8.1 Zn-65 260 < 17.9 < 36.6 < 22.0 < 18.4 < 13.6 Cs-134 130 < 13.7 < 16.4 < 14.3 < 15.6 < 15.2 Cs-137 150 < 9.1 < 14.5 < 15.9 < 10.0 < 13.7 11-1

Table 11. Fish, analyses for gamma-emitting isotopes.

Collection: Semiannually Units: pCi/kg wet Location CA-AQF-C Lab Code Req. LLD CAF- 1881 CAF- 1882 CAF- 1883 CAF- 1884 CAF- 1885 Date Collected 04-23-15 04-23-15 04-23-15 04-23-15 04-23-15 Sample Type River Bigmouth Freshwater Common Carp Silver Carp Carpsucker Buffalo Drum K-40 - 3181 +/- 455 2931 +/- 401 2839 +/- 396 3029 +/- 401 2771 +/- 361 Mn-54 130 < 12.8 < 18.3 < 21.6 < 13.1 < 12.2 Fe-59 260 < 67.3 < 56.3 < 50.7 < 53.6 < 47.4 Co-58 130 < 10.6 < 12.9 < 10.3 < 13.2 < 19.2 Co-60 130 < 13.7 < 12.9 < 15.3 < 13.3 < 11.2 Zn-65 260 < 11.9 < 25.3 < 37.3 < 19.5 < 29.9 Cs-134 130 < 14.6 < 18.0 < 19.7 < 15.6 < 14.3 Cs-137 150 < 15.1 < 19.6 < 17.1 < 15.3 < 18.9 Lab Code CAF- 6153 CAF- 6154 CAF- 6156 CAF- 6157 CAF- 6158 Date Collected 10-22-15 10-22-15 10-22-15 10-22-15 10-22-15 Sample Type Freshwater Common Carp Black Buffalo Channel Catfish Silver Carp Drum K-40 - 2524 +/- 339 2542 +/- 362 2918 +/- 367 3384 +/- 429 2383 +/- 362 Mn-54 130 < 15.9 < 7.3 < 13.1 < 14.3 < 10.0 Fe-59 260 < 15.1 < 32.6 < 46.0 < 60.6 < 41.9 Co-58 130 < 21.3 < 18.6 < 19.3 < 15.2 < 12.3 Co-60 130 < 15.9 < 6.7 < 9.3 < 16.6 < 15.1 Zn-65 260 < 24.0 < 21.5 < 33.8 < 41.8 < 15.9 Cs-134 130 < 14.9 < 17.5 < 13.5 < 18.2 < 13.3 Cs-137 150 < 10.9 < 17.4 < 15.3 < 17.6 < 13.7 11-2

Table 12a. Direct Radiation Gamma (quarterly exposure)

Location Gamma Dose (mrem/90 days)

QTR 1 QTR 2 QTR 3 QTR 4 CA-IDM-1A 16.55 15.06 15.53 15.95 CA-IDM-3 17.25 15.65 16.28 16.59 CA-IDM-5 14.39 13.11 14.13 14.27 CA-IDM-6 16.37 15.54 15.42 16.13 CA-IDM-7 16.51 14.95 15.73 16.26 CA-IDM-9 14.54 13.65 15.50 15.11 CA-IDM-10 16.94 16.16 16.84 16.83 CA-IDM-11A 16.48 16.48 17.11 17.05 CA-IDM-14 15.53 14.31 15.31 16.22 CA-IDM-17 15.18 14.28 14.36 15.85 CA-IDM-18A 15.58 15.05 15.15 16.48 CA-IDM-20 16.00 15.21 15.78 17.05 CA-IDM-21 15.63 14.35 15.49 15.91 CA-IDM-22A 13.11 12.66 12.33 12.67 CA-IDM-23 16.54 15.40 15.92 17.08 CA-IDM-26 (C) 11.88 10.54 11.30 11.44 CA-IDM-27 (C) 17.79 16.38 16.24 17.74 CA-IDM-30A 15.38 13.97 15.97 16.07 CA-IDM-31A 16.32 15.24 16.52 17.05 CA-IDM-32 15.83 14.71 16.10 16.07 CA-IDM-32A 14.86 14.33 14.88 15.34 CA-IDM-33 15.65 13.99 16.43 15.63 CA-IDM-34 16.27 14.29 14.92 14.44 CA-IDM-35 14.75 13.50 15.01 14.34 CA-IDM-36 14.80 13.43 14.54 15.15 CA-IDM-37 15.59 13.79 14.54 15.99 CA-IDM-38 11.13 10.58 11.23 10.95 CA-IDM-39 16.22 14.40 15.62 15.71 CA-IDM-39A 16.04 14.67 15.74 15.55 CA-IDM-40 16.98 15.52 17.02 17.25 CA-IDM-41 15.51 15.24 15.23 15.69 CA-IDM-42 13.81 12.57 13.16 13.84 CA-IDM-43 16.23 13.95 15.80 15.91 CA-IDM-44 15.71 14.32 15.42 15.33 CA-IDM-45 14.53 12.99 13.77 14.34 CA-IDM-46 16.68 15.32 16.79 16.17 CA-IDM-47 15.07 14.52 15.49 15.78 CA-IDM-48 15.71 14.87 15.72 15.94 CA-IDM-49 15.18 14.76 13.95 15.50 CA-IDM-50 16.32 15.04 14.84 16.04 CA-IDM-51A 16.70 15.56 16.23 17.83 CA-IDM-52 16.87 16.58 16.39 16.88 CA-IDM-60 (C) 16.23 15.91 15.00 15.80 12-1

Table 12b. Direct Radiation Neutron (quarterly exposure)

Neutron Dose (mrem/91 days)

Location QTR 1 QTR 2 QTR 3 QTR 4 CA-IDM-60N* - - 0.0 0.0 CA-IDM-61N 0.0 0.0 0.0 0.0 CA-IDM-62N 0.0 0.0 0.0 0.0 CA-IDM-63N 0.0 0.0 0.0 0.0 CA-IDM-64N 0.0 0.0 0.0 0.0

• Control station. Neutron control TLDs were not placed until the 3rd quarter, 2015.

12-2

ViAmerefi Catlaway Plant MISSOURI April 29, 2016 ULNRC-0630 1 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 40 CFR 190 Ladies and Gentlemen:

DOCKET NUMBERS 50-483 and 72-1045 CALLAWAY PLANT UNIT 1 UNION ELECTRIC Co.

FACILITY OPERATING LICENSE NPF-30 2015 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT Please find enclosed the 2015 Annual Radiological Environmental Operating Report for Callaway Plant. This report is submitted in accordance with Section 5.6.2 of the Callaway Plant Technical Specifications and Appendix B to the Callaway Plant Operating License.

This letter does not contain new commitments.

If there are any questions, please contact Johann S. Geyer at (314) 225-1589 Sincerely, J ann S. Geyer Director, Radiation Protection TAW Enclosure P.c. Box 620 : Fulton, Jv1 65251 .Aiierenlvlissoiiri.coiii

ULNRC-0630 1 April 29, 2016 Page 2 cc: Mr. Marc L. Dapas Regional Administrator U. S. Nuclear Regulatory Commission Region IV 1600 East Lamar Boulevard Arlington, IX 76011-4511 Director Division of Spent Fuel Management Office of Nuclear Material Safety and Safeguards U. S. Nuclear Regulatory Commission Washington, DC 20555-000 1 Senior Resident Inspector Callaway Resident Office U.S. Nuclear Regulatory Commission

$201 NRC Road Steedman, MO 65077 Mr. L. John Kios Project Manager, Callaway Plant Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Mail Stop O$H4 Washington, DC 20555-273 8

ULNRC-0630 1 April 29, 2016 Page 3 Index and send hardcopy to QA file A160.0761 Hardcopy:

Certrec Corporation 6100 Western Place, Suite 1050 fort Worth, TX 76107 (Certrec receives ALL attachments as long as they are non-safeguards and may be publicly disclosed.)

Electronic distribution for the following can be made via Responses and Reports ULNRC Distribution:

F. M. Diya I. E. Herrmann B. L. Cox R. C. Wink I. B. Elwood Corporate Communications NSRB Secretary Mr. Greg Voss, REP Manager (SEMA)

STARS Regulatory Affairs Mr. John ONeill (Pillsbury Winthrop Shaw Pittman LLP)

Mr. Robert Stout (DNR)

Ms. Leanne Tippett-Mosby (DNR)

AMEREN MISSOURI CALLAWAY ENERGY CENTER FULTON, MISSOURI Docket Numbers 50-483 and 72-1045 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT to THE UNITED STATES NUCLEAR REGULATORY COMMISSION Part I January 1 to December 31, 2015 Prepared by ENVIRONMENTAL, Inc.

Midwest Laboratory and Ameren Missouri Callaway Energy Center Submitted by UNION ELECTRIC CO.

dba Ameren Missouri Project No. 8036

PREFACE This Annual Radiological Environmental Operating Report (AREOR) describes the Ameren Missouri Callaway Energy Center Radiological Environmental Monitoring Program (REMP), and the program results for the calendar year 2015. It is submitted in accordance with section 5.6.2 of the Callaway Energy Center Technical Specifications.

Staff members of the Environmental, Inc., Midwest Laboratory were responsible for the acquisition of data presented in this report. Environmental samples were collected by Ameren Missouri personnel or contractors to Ameren Missouri and shipped to Environmental, Inc. - Midwest Laboratory and Stanford Dosimetry, LLC, for analysis.

The report was prepared by Environmental, Inc., Midwest Laboratory and the Ameren Missouri Callaway Energy Center.

ii

TABLE OF CONTENTS No. Page PREFACE ..................................................................................................................... ii List of Tables ................................................................................................................. v List of Figures............................................................................................................... vi

1.0 INTRODUCTION

..........................................................................................................1 2.0

SUMMARY

....................................................................................................................2 3.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ..............................3 3.1 Program Design and Data Interpretation .........................................................3 3.2 Program Description ........................................................................................4 3.3 Program Execution ..........................................................................................5 3.4 Laboratory Procedures ....................................................................................6 3.5 Program Modifications .....................................................................................7 3.6 Detection and Reporting Limits ........................................................................7 3.7 Land Use Census ............................................................................................8 3.8 Corrections to Previous AREORs.8 4.0 RESULTS AND DISCUSSION .....................................................................................9 4.1 Atmospheric Nuclear Detonations and Nuclear Accidents ..............................9 4.2 Program Findings .............................................................................................9 5.0 TABLES .....................................................................................................................12

6.0 REFERENCES

CITED ................................................................................................23 APPENDICES A Interlaboratory Comparison Program Results ......................................................... A-1 B Data Reporting Conventions .................................................................................... B-1 C Non-Radiological Monitoring Program ..................................................................... C-1 D Sampling Location Maps.......................................................................................... D-1 iii

TABLE OF CONTENTS (continued)

PART II Page Data Tabulations and Analyses ..................................................................................... i iv

LIST OF TABLES No. Page 5.1 Sampling Locations, Ameren Missouri, Callaway Energy Center ..............................12 5.2 Collection Frequencies and Required Analyses .........................................................16 5.3 Minimum Required Detection Capabilities for REMP Sample Analysis .....................17 5.4 Results of the Land Use Census ................................................................................18 5.5 Missed Collections and Analyses ...............................................................................19 5.6 Radiological Environmental Monitoring Program Summary .......................................20 In addition, the following tables are in the Appendices:

Appendix A A-1 Environmental Resource Associates (substitute program for EPA) ........................ A1-1 A-2 Interlaboratory Comparison Program Results, Thermoluminescent Dosimeters (TLDs) ......................................................................................................... A2-1 A-3 In-house Spiked Samples ........................................................................................ A3-1 A-4 In-house "Blank" Samples ....................................................................................... A4-1 A-5 In-house "Duplicate" Samples ................................................................................. A5-1 A-6 Department of Energy MAPEP comparison results ................................................. A6-1 A-7 Environmental Resource Associates (substitute program for EML) ........................ A7-1 Attachment A: Acceptance criteria for spiked samples ........................................... A-2 Appendix C C-1 Introduction .............................................................................................................. C-1 C-2 Unusual or Important Events ................................................................................... C-1 C-3 EPP Non-compliances ............................................................................................. C-1 C-4 Non-routine Reports................................................................................................. C-1 C-5 Plant Design and Operation Environmental Evaluations ......................................... C-2 v

LIST OF FIGURES No. Page Appendix D D-1 Radiological Environmental Sampling Locations 1, 2, 3 mile radius from site location................................D-2 D-2 Radiological Environmental Sampling Locations 3, 4, 5, 6 mile radius from site location. .............................................................................................................. D-3 D-3 Radiological Environmental Sampling Locations 5, 10, 15 mile radius from site location ...................................................................................................................... D-4 D-4a Groundwater Monitoring Wells, Owner Controlled Area and Vicinity ....................... D-5 D-4b Groundwater Monitoring Wells, Northern Area ......................................................... D-6 D-4c Groundwater Monitoring Wells, Central Area ........................................................... D-7 D-4d Groundwater Monitoring Wells, Alluvial Area ........................................................... D-8 vi

vii

1.0 INTRODUCTION

This report presents an analysis of the results of the Radiological Environmental Monitoring Program (REMP) conducted during 2015 for the Union Electric Company (dba Ameren Missouri ) Callaway Energy Center.

The objectives of the REMP are to monitor potential critical pathways of radioactive effluent to man and determine the radiological impact on the environment caused by operation of the Callaway Energy Center. The Radiological Environmental Monitoring Program was initiated in April 1982.

The Callaway Energy Center consists of one 3565 MWt pressurized water reactor, which achieved initial criticality on October 2, 1984. The plant is located on a plateau approximately ten miles southeast of the City of Fulton in Callaway County, Missouri and approximately eighty miles west of the St. Louis metropolitan area. The Missouri River flows by the site in an easterly direction approximately five miles south of the site at its closest point.

Tabulation of the individual analyses for the year 2015 is included in Part II of this report.

1

2.0

SUMMARY

The Radiological Environmental Monitoring Program, as required by the U.S. Nuclear Regulatory Commission (NRC) Technical Specifications for the Callaway Energy Center is described herein.

Results for the year 2015 are summarized and discussed.

For the year, the Callaway Energy Center was operated in compliance with Offsite Dose Calculation Manual (ODCM) and Radiological Effluent Controls (REC) requirements. Results from the REMP indicate the Callaway Energy Center has had no significant radiological impact on the health and safety of the public or on the environment.

2

3.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 3.1 Program Design and Data Interpretation The purpose of the Radiological Environmental Monitoring Program at the Callaway Energy Center is to assess the impact of the plant on its environment. For this purpose, samples are collected from waterborne, airborne, ingestion and terrestrial pathways and analyzed for radioactive content. Ambient gamma radiation levels are monitored by thermoluminescent dosimeters (TLDs).

Sources of environmental radiation can include the following:

(1) Natural background radiation arising from cosmic rays and primordial radionuclides; (2) Fallout from atmospheric nuclear detonations; (3) Releases from nuclear power plants, planned or accidental; and (4) Industrial and medical radioactive waste.

Effects due to operation of the Callaway Energy Center must be distinguished from those due to other sources in interpreting the data,.

The indicator-control concept is a major interpretive aid; where feasible the design of the Callaway Energy Center program has both indicator and control stations. Most types of samples are collected at indicator locations (nearby, downwind, or downstream) and at control locations (distant, upwind, or upstream). A station effect would be indicated if the radiation level at an indicator location was significantly larger than that at the control location. The difference would have to be greater than could be accounted for by typical fluctuations in radiation levels arising from other sources.

The monitoring program includes analyses for iodine-131, a fission product, and tritium, which is produced by cosmic rays, atmospheric nuclear detonations, and also by nuclear power plants.

Most samples are analyzed for gamma-emitting isotopes, with results for the following groups quantified: zirconium-95, cesium-137, and cerium-144. These three gamma-emitting isotopes are selected as radiological impact indicators because of the different characteristic proportions in which they appear in the fission product mix produced by a nuclear reactor and that produced by a nuclear detonation. Each of the three isotopes is produced in roughly equivalent amounts by a reactor: each constitutes about 10% of the total activity of fission products ten days after reactor shutdown. On the other hand, ten days after a nuclear explosion, the contributions of zirconium-95, cerium-144, and cesium-137 to the activity of the resulting debris are in the approximate ratio 4:1:0.03 (Eisenbud,1963).

The other group quantified consists of niobium-95, ruthenium-103 and -106, cesium-134, barium-lanthanum-140, and cerium-141. These isotopes are released in small quantities by nuclear power plants, but to date their major source of injection into the general environment has been atmospheric nuclear testing. Nuclides of the next group, manganese-54, cobalt-58 and-60, and zinc-65, are activation products and arise from activation of corrosion products. They are typical components of nuclear power plant effluents, but are not produced in significant quantities by nuclear detonation.

Nuclides of the final group, beryllium-7, which is of cosmogenic origin, and potassium-40, a naturally-occurring isotope, were chosen as analytical monitors and should not be considered radiological impact indicators.

Other means of distinguishing sources of environmental radiation can be employed in interpreting the data. Current radiation levels can be compared with previous levels, including pre-operational data. Results of the monitoring program can be related to those obtained in other parts of the world. Finally, results can be related to events known to cause elevated levels of radiation in the environment, e.g., a nuclear accident.

3

3.2 Program Description The sampling and analysis schedules for the environmental radiological monitoring program at the Callaway Energy Center are summarized in Tables 5.1 and 5.2 and briefly reviewed below.

Table 5.1 identifies sampling locations and specifies as to type (indicator or control) and its distance, and direction relative to the reactor site. The types of samples collected at each location, required analyses and the frequency of collections are presented in Table 5.2.

To monitor the air environment, airborne particulate and airborne iodine samples are collected by continuous pumping, at five locations. The airborne particulates are collected on glass fiber filters and the airborne iodine through an activated charcoal cartridge. Both filters and cartridges are exchanged weekly. Airborne particulates are analyzed for gamma-emitting isotopes. Charcoal cartridges are analyzed for iodine-131.

The ingestion pathway is monitored by sampling of milk (if available), fish and green leafy vegetation.

Milk samples are collected semimonthly when animals are on pasture and monthly the rest of the year. There were no milk indicator stations identified by the Land Use Census for the subject year. The control station continued to be collected. Samples are analyzed for iodine-131 and gamma-emitting isotopes.

Monthly during the growing season, edible green leafy vegetation is collected from both indicator and control locations. Vegetation samples typically consist of mustard greens, turnip greens, cabbage, lettuce, collards, radish greens, Swiss chard, broccoli and poke. Other edible broad leaf vegetation is collected if primary varieties are not available. The samples are analyzed for iodine-131 and other gamma-emitting isotopes.

Feed crops (soybeans, sorghum, corn) are collected from locations FC-1 through FC-4. FC-1, FC-2 and FC-3 are located on Ameren property traversed by the discharge pipeline. The samples are collected at harvest and analyzed for tritium and gamma emitting isotopes. FC-4 is a control location, beyond the influence of plant operations. Feed crops are grown for animal feed and not for human consumption. The soybean field for sample FC-1 is planted by the Missouri State Department of Conservation (MODOC) to provide feed to wildlife living in the Reform Wildlife Conservation Area. MODOC did not plant the field this year and there was no crop to sample.

The waterborne pathway is monitored by sampling surface water, groundwater and drinking water, and bottom and shoreline sediments. Water samples are analyzed for tritium and gamma-emitting isotopes, and sediments are analyzed for gamma-emitting isotopes.

The waterborne pathway is also monitored by upstream and downstream semiannual collections of fish. The five most abundant recreational or commercial fish species are collected. Samples are analyzed for gamma-emitting isotopes.

Monthly composite samples of surface water from the Missouri River are collected from one indicator location (S02) and from one control location (S01). The surface water samples are composites of daily collections by automatic river samplers.

Onsite surface water from ten ponds is analyzed for tritium and gamma-emitting isotopes. The collection frequencies are either semiannually or quarterly.

To monitor possible sources of ground water contamination due to plant operations, non-potable ground water was collected monthly or quarterly from well locations both onsite and along the discharge pipeline. The samples were analyzed for tritium and gamma-emitting isotopes.

Potable well water samples are collected quarterly from the plant drinking water supply, neighboring property owners, and from the town of Portland, MO. The samples were analyzed for tritium and gamma-emitting isotopes.

4

River bottom sediment is collected semiannually at the plant's intake (A) and discharge (C). The samples are taken from water at least 2 meters deep to prevent influence of bank erosion.

Shoreline sediments are collected semiannually in the same area as bottom sediment. These samples are collected within two feet of the edge of the water. The samples are analyzed for gamma-emitting isotopes.

The direct ambient gamma radiation pathway is also considered. This exposure is monitored by thermoluminescent dosimeters (TLDs) at forty-eight locations in and around the Callaway site.

The TLDs are placed in 16 sectors around the plant as specified in the ODCM-RECS. Five of the TLD stations have neutron monitoring capability and three locations are designated as controls.

TLDs are exchanged and analyzed quarterly.

Soil is collected annually from seven indicator locations (F2, PR3, F6, PR7, W2, W3, and W4) and two control locations (M9, W1) to monitor the terrestrial environment. The samples are analyzed for gamma-emitting isotopes.

3.3 Program Execution The program was executed as described in the preceding section with the following exceptions.

(1) Surface Water:

The sampler at S01 was out of service 32 days (9%); the sampler at S02 was out-of service 22 days (6%).

(2) Ground Water:

No groundwater samples were available from location 937D for the 1/14/15 scheduled collection due to ice making the well inaccessible (CAR 201500361). No groundwater was available from location 937B for the 11/12/15 or 12/13/15 scheduled collection due to construction in the area (CAR 201508200). No groundwater samples were available from monitoring well U1MW-028 for the first, second or third quarters of 2015 because the well was dry (CAR 201505641). Location U1MW-028 was subsequently deleted from the REMP program because it is dry most of the time.

(3) Drinking Water:

No drinking water sample was available at location DWA-08 for the 7/29/15 scheduled collection. The provider was on vacation. Also, no drinking water was available at location DWA-05 10/26/15. The property was sold and the new owner hasnt been identified in order to arrange for future sampling (CAR 201507721).

(4) Broadleaf Vegetation:

Edible broadleaf vegetation, collected at the five area gardens was available for harvest from June through October, 2015 with the following exceptions: Location V-17 started producing in May but was finished by September. Location V-9 was unavailable in June due to flooding of the garden (CAR 201504200). Location V-9 last produced in September. Locations V-12 and V-16 didnt start producing until June and V-11 and V-16 both stopped producing in September. Missing samples during the periods when the gardens were producing are listed in Table 5.5.

The growing season is defined as April 1 through November 1 (ref: Hammer, Gregory R.). A vegetation sample unavailable after October 31 is not considered a missed sample.

(5) Shoreline and Bottom Sediment:

The shoreline and bottom sediment indicator samples are required to be taken downstream 5

of the plant discharge. The sampling personnel were recently observed attempting to sample at a location approximately 150' upstream of the plant discharge. The plant discharge line was relocated approximately 400' downstream of the previous location in 2007 to eliminate recycling of plant effluents into the plant intake and in preparation for installation of the replacement discharge pipeline. The sampling personnel were not aware the discharge line had been relocated and stated they had always taken the samples at the same location. Due to ineffective change management, the new location was not communicated to the personnel overseeing the sampling, therefore it is likely, but not certain, that the shoreline and bottom sediment indicator samples continued to be collected at the previous location, approximately 150' upstream of the plant discharge for the years 2007- 2015. This is described in plant corrective action document CAR 201603408. The 2015 samples are listed as missed samples in Table 5.5.

(6) Fish:

The fish indicator samples were also taken in the same location as the sediment samples as described in section 3.3(5) above. The integrity of the fish samples was not compromised, however. The Missouri River in the vicinity of the referenced plant infrastructure has been highly modified and anthropomorphically altered in order to more efficiently support the operation of the river as a commercial navigation corridor. These modifications resulted in the narrowing and incision of the Missouri River, eliminating many micro-habitat features that would otherwise be present for habitat utilization by the targeted fish species. In order to reduce channel maintenance costs while providing some measure of habitat heterogeneity, the US Army Corps of Engineers (USACE) subsequently installed a series of river training structures (wing-dikes, longitudinal rock weirs, etc.). The Callaway intake/discharge is situated immediately downstream of a cross-over of the primary downstream river discharge, which is evidenced by the alternating location of the training structures in the intake/discharge vicinity. Immediately upstream of the intake/outfall the training structures occur along the south-descending bank (opposite the intake/discharge), while the training structures immediately downstream of the intake/outfall are located along the north-descending bank. As these training structures create flow dynamics that provided resting space, foraging habitat and cover for many of the targeted species, fish will aggregate along the training structures as refugia and migrate between them. As the primary downstream river discharge crosses-over just upstream of the intake structure the fish will utilize back-waters and eddies of the upstream most portion of these training structures as resting locations prior to making a burst-swim across the channel to the downstream- most portion of the training structures along the bank opposite the intake/outfall. As has historically been observed by the Callaway plant staff and operators, the intake structure given its configuration and proximity to the upstream- most portion of the adjacent training structures, creates a backwater/eddy environment which would also serve to aggregate fish working their way from below the discharge to above the intake and are preparing to make the burst-swim across the channel. Contextually, a sampling location difference of <150 lineal feet would have minimal consequence in this scenario as the sampling location in such an area is an artificial constraint in both the temporal and spatial context in the order of a few hours to a few feet, while the eco-toxicological context controlling the bio-accumulation of radionuclides in the fish is governed by months of occupancy of over 2 miles of downstream habitat, while the fish are constantly moving in and out of this space. Thus the integrity of the fish samples was not compromised and the fish samples are not listed as missing samples.

3.4 Laboratory Procedures The iodine-131 analyses in milk were made using a sensitive radiochemical procedure involving separation of the iodine by ion-exchange, solvent extraction and subsequent beta counting.

Gamma-spectroscopic analyses were performed with HPGe detectors. Levels of iodine-131 in vegetation and concentrations of airborne iodine-131 in charcoal samples were also determined by gamma spectroscopy.

Tritium was measured by liquid scintillation.

6

Analytical Procedures used by Environmental, Inc. are on file at the laboratory and are available for inspection. Procedures are based on those prescribed by the Health and Safety Laboratory of the U.S. Dep't of Energy, Edition 28, 1997, U.S. Environmental Protection Agency for Measurement of Radioactivity in Drinking Water, 1980, and the U.S. Environmental Protection Agency, EERF, Radiochemical Procedures Manual, 1984.

Environmental, Inc., Midwest Laboratory has a comprehensive quality control/quality assurance program designed to assure the reliability of data obtained. Details of the QA Program are presented elsewhere (Environmental, Inc., Midwest Laboratory, 2012). The QA Program includes participation in Interlaboratory Comparison (crosscheck) Programs. Results obtained through Quality control samples and crosscheck program results are presented in Appendix A.

Environmental TLDs are processed by Stanford Dosimetry, LLC.

3.5 Program Modifications The monitoring wells in the program were adjusted as described below based on the hydrogeological model developed in the 2014 Limited /site Investigation (LSI) and the frequency of drinking water sample collection was changed back to the pre- LSI frequency based on recommendations of the hydrogeological consultants. (CAR 201504965)

Wells samples were deleted from the program at the following locations: CA-WWA-937A, CA-WWA-937C, CA-WWA-937E, CA-WWA-937F, CA-WWA-938, CA-WWA-OW-4, CA-WWA-OW-5, CA-WWA-U1MW-017, CA-WWA-U1-MW021, CA-WWA-U1MW-022, CA-WWA-U1MW-023, CA-WWA-U1MW-024, CA-WWA-U1MW-025, CA-WWA-U1MW-026, CA-WWA-U1MW-027, CA-WWA-U1MW-028, CA-WWA-U1MW-029, CA-WWA-U1MW-030, CA-WWA-U2MW-9, CA-WWA-U2-12.

Well samples were added at the following locations:

CA-WWA-U1-036, CA-WWA-U1MW-039, CA-WWA-U1MW-047, CA-WWA-U1MW-058, CA-WWA-U1-059, inside old BDL and ISFSI sump. The collection frequency for the well sample at location CA-WWA-U1MW-031 was changed from monthly to quarterly collection.

The frequency of drinking water sample collections was changed from monthly back to quarterly.

The frequency had been changed previously from quarterly to monthly in response to the LSI (Limited Site Investigation) performed in 2014.

The surface water sample at location CA-SWA-UHS was deleted from the program after the 7/25/15 collection.

The drinking water sample at location CA-DWA-05 was deleted from the program after the participating resident sold the property. (CAR201507721)

Four neutron sensitive TLD stations were added to monitor for possible neutron dose from the Independent Spent Fuel Storage Installation. The first fuel loading campaign was conducted in August - October, 2015.

3.6 Detection and Reporting Limits Table 5.3 gives the minimum required detection limits for radiological environmental sample analysis. For each sample type, the table lists the detection level for each isotope. The lower limit of detection (LLD) used in this report is described in NRC Regulatory Guide 4.1 Rev. 1, "Program for Monitoring Radioactivity in the Environs of Nuclear Power Plants" and the NRC Radiological Assessment Branch Technical Position, Rev. 1, November 1979, "An Acceptable Radiological Environmental Monitoring Program".

7

3.7 Land Use Census The Land Use Census is performed annually during the growing season. In 2015, the survey was conducted within a five mile canvassing radius of the Callaway Energy Center. The location of the nearest resident, nearest milk animal, and nearest garden of greater than 50 square meters producing broadleaf vegetation was identified by aerial photography and by contacting residents by phone, mail and/or in field surveys for each of the sixteen meteorological sectors using the midpoint of the two units. Residences in the vicinity of the plant were surveyed in person and by telephone.

The Land Use Census was conducted in July- September, 2015. The results of the census are presented in Table 5.4. The table includes radial direction and distance from the Callaway Energy Center for each location, determined by a Global Positioning System (GPS) receiver.

No new well water sources were identified along the Callaway Plant pipeline corridor. No irrigation uses of the Missouri River were identified during the survey. The Missouri Department of Natural Resources confirmed that no new drinking water intakes have been located along the Missouri River within ten (10) river miles downstream from the plant.

3.8 Corrections to Previous AREORs The shoreline and bottom sediment indicator samples are required to be taken downstream of the plant discharge. The sampling personnel were recently observed attempting to sample at a location approximately 150' upstream of the plant discharge. The plant discharge line was relocated approximately 400' downstream of the previous location in 2007 to eliminate recycling of plant effluents into the plant intake and in preparation for installation of the replacement discharge pipeline.

The sampling personnel were not aware the discharge line had been relocated and stated they had always taken the samples at the same location. Due to ineffective change management, the new location was not communicated to the Ameren personnel overseeing the sampling, therefore it is likely, but not certain, that the shoreline and bottom sediment indicator samples continued to be collected at the previous location, approximately 150' upstream of the plant discharge for the years 2007- 2015. Those samples should be considered as missed samples. This is described in plant corrective action document CAR 201603408.

8

4.0 RESULTS AND DISCUSSION All collections and analyses were made as scheduled, except for the listing in Table 5.5.

Results are summarized in Table 5.6 as recommended by the Nuclear Regulatory Commission. For each type of analysis and sample medium, the table lists the mean and range of all indicator and control locations, as well as that location with the highest mean and range.

The tabulated results of all measurements are not included in this section, although references to these results will be made in the discussion. A complete tabulation of results for 2015 is contained in Part II of the Annual Report on the Radiological Environmental Monitoring Program for the Callaway Energy Center.

4.1 Atmospheric Nuclear Detonations and Nuclear Accidents The Fukushima Daiichi nuclear accident occurred March 11, 2011. There were no reported accidents involving significant release to the environment at nuclear reactor facilities in 2015. The last reported atmospheric test was conducted on October 16, 1980 by the Peoples Republic of China. There were no reported atmospheric nuclear tests in 2015.

4.2 Program Findings Airborne Particulates and Iodine Gamma spectroscopic analysis of the air particulate filters yielded similar results for all locations.

In 34 of the 260 samples tested, Beryllium-7 was detected with an average activity of 0.24 pCi/m3. Beryllium-7 is produced continuously in the upper atmosphere by cosmic radiation. No gamma emitting isotopes of plant origin were identified.

There was no I-131 activity detected in any of the charcoal canister samples.

Direct Radiation (TLDs)

Forty-three gamma sensitive TLDs were placed in 16 sectors around the Callaway site.

Measurements from forty indicator locations averaged 15.3 mrem/quarter and the three control locations averaged 14.7 mrem/quarter. Readings ranged from 10.5 to 17.8 mrem /quarter, with the highest from the indicator location CA-IDM-27, averaging 17.0 mrem/quarter. The differences are statistically insignificant. The TLD readings were consistent with previously accumulated data and no effect from plant operation was identified.

Four neutron sensitive TLDs were placed in locations at the Site Boundary closest to the Independent Spent Fuel Storage Facility Installation (ISFSI) and at a control location approximately 14 miles from the site. There was no measureable neutron dose there was no effect from the ISFSI.

Milk There are no milk indicator stations. No Iodine-131 was detected in samples from the control station. No gamma-emitting isotopes, excepting naturally occurring potassium-40, were detected in milk. Milk data for 2015 show no radiological effects of plant operation.

Broadleaf Vegetation There was no I-131 activity detected in broadleaf vegetation samples. No gamma-emitting isotopes were detected in broadleaf vegetation samples excepting naturally occurring potassium-9

40. Vegetation data for 2015 show no radiological effects of plant operation.

Non-Food Crops Soybean samples were analyzed for tritium and gamma-emitting isotopes. No tritium activity was detected. No gamma-emitting isotopes, excepting naturally occurring potassium-40, were detected in non-food crops.

Fish Edible portions of fish were analyzed by gamma spectroscopy. No gamma-emitting isotopes, excepting naturally occurring potassium-40, were detected in fish.

Soil Cesium-137 activity was detected in ten of the fourteen indicator samples at an average concentration of 292 pCi/kg dry. The cesium-137 activity is consistent with levels observed from 1999 through 2014; these levels are attributable to the deposition of fallout from previous decades.

Surface Water Low level tritium was detected in four of the twelve samples collected at the downstream location S02 at an average concentration of 239 pCi/L. There was no tritium detected in the remaining eight samples from S02. No gamma-emitting isotopes were detected.

Surface Water, Ponds Tritium activity was detected in one sample from the UHS pond. This is believed to be historical tritium due to river water recycle of tritium in liquid effluents prior to 2007. No tritium activity was detected in the remaining pond samples. No gamma-emitting isotopes were detected in the pond samples.

Drinking Water Wells (potable water)

Samples from fourteen locations were analyzed for tritium and gamma-emitting isotopes. No tritium or gamma-emitting isotopes were detected.

Wells and Ponds (non-potable water)

Groundwater samples from deep wells F-05 and F-15 were analyzed for tritium and gamma-emitting isotopes. There were no tritium or gamma emitting isotopes detected.

Wells MW-31, MW-34, MW-36, MW-39, MW-47, MW-58, and MW-59 were installed during the 2014 LSI (the 2014 LSI is described in detail in the Callaway Energy Center 2014 Annual Radioactive Effluents Release Report). These wells continue to monitor the natural attenuation of tritium which decreased significantly during 2015. Tritium activity was detected in 34 of 44 samples from these wells. The highest concentration was measured in MW-36 which peaked at 13,295 pCi/L in January. By years end, the concentration in MW-36 had fallen to 1,614 pCi/L. The average concentration among positive results for these wells was 4,371pCi/L. The contamination is being remediated by monitored natural attenuation. There are no active leaks.

Wells OW-4, OW-5, GWS, 936, 937A to 937F, 938, 939R, 940 and 941 are located in the Plant Protected Area, adjacent to the power block. Low level tritium in wells OW-4 and OW-5 is believed to be historical tritium due to river water recycle of tritium in liquid effluents prior to 2007.

Tritium activity in the remainder of these wells is believed to be the result of washout from gaseous effluents. The low level tritium activity observed in wells MW-014, MW-018 and MW-019 is due to residual low level contamination from moisture carryover during normal operation of air 10

release valves (ARVs) in manholes 5 and 6B on the now-retired discharge pipeline. The pipeline was replaced in 2008 and there has been no new contamination of this area since then. The existing contamination is being remediated by monitored natural attenuation. There are no active leaks.

Sediments Samples of shoreline and bottom sediments were analyzed for gamma-emitting isotopes.

Cesium-137 was detected in one of the two bottom sediment indicator samples at a concentration of 76 pCi/kg dry weight, but measured below detection limits at both of the samples from the control location. Cesium-137 was also detected in one of the two shoreline sediment indicator samples at a measured concentration of 90 pCi/kg dry weight. These results are consistent with results from previous years. There were no other gamma-emitting isotopes excepting naturally occurring potassium-40 in any of the sediment samples.

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5.0 TABLES 12

Table 5.1. Sampling Locations. (TLDs)

Location Distance / Sample Code Direction 1 Description Types 2 1a 11 mi. NW City of Fulton on Hwy Z, 0.65 mi. E of Bus. 54, W of Campus Apartments. IDM 3 1.2 mi. NW 0.1 mi. West of Hwy CC on Gravel Rd., 0.8 mi. South Hwy O, Pole No. 18559. IDM 5 1.3 mi. ENE Primary Meteorological Tower. IDM 6 2.0 mi. W Cty Rd. 428, 1.2 mi. West of Hwy CC, Utility Pole No. 18609. IDM 7 1.4 mi. S Cty Rd. 459, 2.6 mi. North of Hwy 94, Utility Pole No. 35097. IDM 9 3.8 mi. S NW Side of the Cty Rd. 459 and Hwy 94 Junction, Utility Pole No. 06754. IDM 10 3.9 mi. SSE Hwy 94, 1.8 mi. East of Cty Rd. 459, Utility Pole No. 12182. IDM 11a 4.7 mi. SE City of Portland, Utility Pole No. 12110. IDM 14 4.9 mi. ESE SE Side of Intersection D and 94, Utility Pole No. 11940. IDM 17 3.8 mi. E Cty Rd. 4053, 0.3 mi. E of Hwy 94, Kingdom Telephone Co., Pole No. 3X12. IDM 18a 3.7 mi. ENE East side of Hwy D, 0.5 mi. South of O, Utility Pole No. 38579. IDM 20 4.7 mi. NE City of Readsville, Utility Pole No. 12830. IDM 21 3.8 mi. NNE Cty Rd. 155, 1.9 mi. North of Hwy O, Utility Pole No. 19100. IDM 22a 1.9 mi. NNE North side of Hwy O, 100 feet East of Cty Rd. 150, Utility Pole No. 31094. IDM 23 6.6 mi. NNE City of Yucatan, Utility Pole No. 12670. IDM 26 3 12 mi. E Town of Americus, Utility Pole No. 11159. IDM 27 3 9.3 mi. ESE Town of Bluffton, Utility Pole No. 11496. IDM 30a 4.4 mi. SSW City of Steedman, Utility Pole No. 06557. IDM City of Mokane, Hwy C and Cty Rd. 400, 0.9 mi. N. of Hwy 94, Utility 31a 7.8 mi. SW Pole.52071 IDM 32 5.4 mi. WSW Hwy VV, 0.6 mi.West of Cty Rd. 447, Utility Pole No. 27031. IDM 32a 5.0 mi. WSW Cty Rd. 447, Utility Pole No. 06357. IDM 33 7.4 mi. W City of Hams Prairie, SE of Hwy C and AD Junction. IDM 34 9.5 mi. WNW NE Side of Hwy C and Cty Rd. 408 Junction. IDM 35 5.8 mi. NNW City of Toledo, Utility Pole No. 17684. IDM 36 4.9 mi. N Cty Rd. 155, 0.8 mi. South of Cty Rd. 132, Utility Pole No. 19137 IDM 37 0.5 mi. SSW Cty Rd. 459, 0.9 mi. South of Hwy CC, Utility Pole No. 35077. IDM 38 4.6 mi. NNW Cty Rd. 133, 1.5 mi. South of Hwy UU, Utility Pole No. 34708. IDM 39 5.4 mi. NW Cty Rd. 111, Utility Pole No. 17516. IDM 39a 5.0 mi. NW Cty Rd. 111, Utility Pole No. 17526. IDM 40 4.2 mi. WNW NE Side of Cty Rd. 112 and Hwy O, Utility Pole No. 18145. IDM 41 4.9 mi. W Hwy AD, 2.8 mi. East of Hwy C, Utility Pole No. 18239. IDM 42 4.4 mi. SW Cty Rd. 447, 2.6 mi. North of Cty Rd. 463, Utility Pole No. 06326. IDM 43 0.5 mi. SW Cty Rd. 459, 0.7 mi. South of Hwy CC, Utility Pole No. 35073. IDM 44 1.7 mi. WSW Hwy CC, 1.0 mi. South of Cty Rd. 459, Utility Pole No. 1877. IDM 45 1.0 mi. WNW Cty Rd. 428, 0.1 mi. West of Hwy CC, Utility Pole No. 18580. IDM 46 1.5 mi. NNW NE Side of Hwy CC and Cty Rd. 466 Intersection, Utility Pole No. 28242. IDM 47 1.0 mi. N Cty Rd. 448, 0.9 mi. South of Hwy O, Utility Pole No. 28151. IDM 48 0.4 mi. NE Cty Rd. 448, 1.5 mi. South of Hwy O, Plant Security Sign Post. IDM 49 1.6 mi. E Cty Rd. 448, Utility Pole No. 06959, Reform Wildlife Mgmt. Parking Area. IDM 50 0.9 mi. SSE Cty Rd. 459, 3.3 mi. North of Hwy 94, Utility Pole No. 35086 IDM 51a 0.3 mi. SE Owner Control Fence, SE of the Water Treatment Plant. IDM 52 0.4 mi. ESE Light Pole Near the East Plant Security Fence. IDM 60 3 14 mi. SW Utility Pole No. 43744, just past Tebbetts City sign. IDM Table 5.1. Sampling Locations. (TLDs, continued) 13

Location Distance / Sample Description Code Direction 1 Types 2 60N 3 14 mi. SW Utility Pole No. 43744, just past Tebbetts City sign; co- located with IDM-60. IDM 61N 1.9 mi NNW Co- located with air monitoring station A1; Corner of CC and O. IDM 62N 1.2 mi. NW Co-located with location 3 IDM 63N 1.9 mi. NNE Co-located with location 22a IDM 64N 1.0 mi. WNW Co-located with location 45 IDM Table 5.1. Sampling Locations (Airborne Radioiodine and Particulate samples, Surface Ponds, Potable Water)

A1 1.3 mi. ENE Primary Meteorological Tower. APT, AIO A7 9.5 mi. NW C. Bartley Farm, Fulton, MO. APT, AIO A8 0.9 mi. NNE Cty Rd. 448, 0.9 miles South of Hwy 0. APT, AIO A9 1.9 mi. NNW Community of Reform. APT, AIO B3 1.8 mi. NNW 0.3 mi. East of the O and CC Junction, Utility Pole No. 50422. APT, AIO 3 2.9 mi. SSE Potable water, County Road 448 DWA 4 2.6 mi. SSE Potable water, County Road 448 DWA 5 2.5 mi. SSE Potable water, County Road 448 DWA 6 2.2 mi. SE Potable water, County Road 448 DWA 7 2.1 mi. ESE Potable water, County Road 448 DWA 8 3.4 mi. SSW Potable water, County Road 457 DWA 9 2.9 mi. SSW Potable water, County Road 457 DWA 10 2.7 mi. SSW Potable water, County Road 457 DWA 12 3.6 mi. SSE Potable water, County Road 464 DWA 21 4.8 mi. ESE Potable water, County Road 469 DWA 22 2.4 mi. SE Potable water, State Road 94 DWA V16 1.6 mi. WSW Wallendorf Farm, Steedman, MO DWA D01 5.0 mi. SE Potable water, Riverside Bar and Grill (Portland, MO). DWA PW1 Onsite Potable water, Unit 1 Construction well #3 DWA Pond 01 0.6 mi. W Fishing Pond SWA Pond 02 0.7 mi. SW Fishing Pond SWA Outfall 010 0.6 mi. NE Stormwater Run-Off Pond SWA Outfall 011 1.0 mi. ENE Stormwater Run-Off Pond SWA Outfall 012 0.5 mi. S Stormwater Run-Off Pond SWA Outfall 013 0.5 mi. S Stormwater Run-Off Pond SWA Outfall 014 0.6 mi. NNW Stormwater Run-Off Pond SWA Outfall 015 0.7 mi. N Stormwater Run-Off Pond SWA Sludge Lagoon, 0.8 mi. SSE

1. 4 On service Sewage Sludge Lagoon SWA UHS pond Inside OCA UHS pond S01 3 4.8 mi. SSE 555 feet Upstream of Discharge North Bank SWA S02 4.9 mi. SE 1.1 River Miles Downstream of Discharge North Bank SWA 14

Table 5.1. Sampling Locations, Non-potable Groundwater Wells Location Distance / Sample Description Code Direction 1 Types 2 936 Inside OCA Diesel Fuel Remediation Well, NW of SFSB WWA 937A Inside OCA Monitoring Well, North of the Powerblock area WWA 937B Inside OCA Monitoring Well, West of the Turbine Bldg. WWA 937C Inside OCA Monitoring Well, West of Radwaste Bldg Drum Storage. WWA 937D Inside OCA Monitoring Well, North of Discharge Monitor Tanks. WWA 937E Inside OCA Monitoring Well, East of Auxilliary Bldg. WWA 937F Inside OCA Monitoring Well, West of the Turbine Bldg. WWA 939R Inside OCA Monitoring Well, East of the Fuel Bldg. WWA 940 Inside OCA Monitoring Well, West of the Radwaste Bldg. WWA 941 Inside OCA Monitoring Well, West of the Radwaste Bldg. WWA GWS Inside OCA Ground Water Sump, West of Reactor Bldg and SFSB WWA ISFSI Inside OCA ISFSI Sump WWA OW-4 Inside OCA UHS Pond Berm WWA OW-5 Inside OCA UHS Pond Berm WWA U1MW-001 0.3 mi. NNW Outside OCA , Groundwater Monitoring Well WWA U1MW-002 0.4 mi. SSW Outside OCA , Groundwater Monitoring Well WWA U1MW-004 3.7 mi. SSE Dillon, Groundwater Monitoring Well WWA U1MW-005 3.8 mi. SSE Brownlee / Hudson, Groundwater Monitoring Well WWA U1MW-006 3.0 mi. S Ward, Groundwater Monitoring Well WWA U1MW-010 3.1 mi. S Pipeline, Groundwater Monitoring Well WWA U1MW-012 3.0 mi. S Ward, Groundwater Monitoring Well WWA U1MW-013 0.8 mi. SSE Pipeline Corridor WWA U1MW-014 3.7 mi. S Pipeline Corridor WWA U1MW-015 3.9 mi. SSE Pipeline Corridor WWA U1MW-016 4.5 mi. SSE Pipeline Corridor WWA U1MW-017 3.8 mi S Pipeline Corridor WWA U1MW-018 3.8 mi. S Pipeline Corridor WWA U1MW-019 3.7 mi. S Pipeline Corridor WWA U1MW-020 3.9 mi. SSE Pipeline Corridor WWA U1MW-021 3.7 mi. S Down gradient of Pipeline Corridor WWA U1MW-022 3.8 mi. S Down gradient of Pipeline Corridor WWA U1MW-023 3.8 mi. S Down gradient of Pipeline Corridor WWA U1MW-024 3.8 mi. S Down gradient of Pipeline Corridor WWA U1MW-025 3.9 mi. S Down gradient of Pipeline Corridor WWA U1MW-026 3.9 mi. S Down gradient of Pipeline Corridor WWA U1MW-027 1.5 mi. S Pipeline Corridor, downgrade of discharge vacuum breaker WWA U1MW-028 3.2 mi. S Pipeline Corridor, downgrade of MH-9B WWA U1MW-029 0.2 mi. E Down gradient of DMTdischarge piping WWA U1MW-030 0.2 mi. ESE Down gradient of DMTdischarge piping WWA U1MW-031 0.2 mi. ENE 3 from manhole 86-2 WWA U1MW-034 0.2 mi. E ~130m from MH86-2 WWA U1MW-036 0.3 mi. ESE ~300m from MH86-2 WWA U1MW-039 0.6 mi. SSE ~1100m from MH86-2 WWA U1MW-047 4.6 mi. SSE Upstream from Gate Valve Vault at intake structure WWA U1MW-058 0.3 mi. SE ~400m from MH86-2 WWA 15

Table 5.1. Sampling Locations, Non-potable Groundwater Wells.(Cont.)

U1MW-059 1.0 mi. SSE ~1700m from MH86-2 WWA Inside Old BDL 1.4 mi. SSE Sampled through hole in Techite blowdown line WWA U2 MW-2S 1.8 mi. N Groundwater Monitoring Well WWA U2 MW-5S 1.1 mi. E Groundwater Monitoring Well WWA U2 MW-8 0.4 mi. N Groundwater Monitoring Well WWA U2 MW-10 0.4 mi. SSW Groundwater Monitoring Well WWA U2 MW-16 2.9 mi. SSE Groundwater Monitoring Well WWA F05 0.9 mi. SSE Offsite Groundwater Monitoring well. WWA F15 0.4 mi. NNE Onsite Groundwater Monitoring well. WWA Table 5.1. Sampling Locations, Soil, Food Products, Milk, Fish, Bottom Sediments and Inedible Crops.

Location Distance / Sample Description Code Direction 1 Types 2 F2 1.0 mi. SW Callaway Plant Forest Ecology Plot F2. SOL F6 1.6 mi. NE Callaway Plant Forest Ecology Plot F6. SOL PR3 1.0 mi. ESE Callaway Plant Forest Ecology Plot PR3. SOL PR7 0.5 mi. NNW Callaway Plant Forest Ecology Plot PR7. SOL W1 3 0.5 mi. SE Callaway Plant Wetlands, High Ground. SOL W2 0.5 mi. SSE Callaway Plant Wetlands, Inlet Area. SOL W3 0.6 mi. SSE Callaway Plant Wetlands, Discharge Area. SOL W4 0.6 mi. SSE Callaway Plant Wetlands, SW Bank. SOL M9 3 13 mi. SW Ferguson Farm, Tebbetts, MO. SOL V9 1.9 mi. WNW Meehan Farm, Steedman, MO FPL V11 3.2 mi. NW Hickman Farm, Steedman, MO FPL V12 3 18.7 mi. WSW Kissock Farm, South of New Bloomfield, MO FPL V16 1.6 mi. WSW Wallendorf Farm, Steedman, MO FPL V17 1.8 mi. NNW West Residence, Steedman, MO FPL M9 3 13 mi. SW Ferguson Farm, Tebbetts, MO. MLK Between 0.6 and 3.0 river miles upstream of the plant A 3,4 4.9 mi. SSE AQS, AQF discharge on the north bank.

Between the discharge area and 1.5 miles downstream of C4 4.9 mi. SE AQS, AQF the discharge, on the north bank..

FC1 3.4 mi. S Between discharge pipeline MH-8 and the Katy Trail FC FC2 3.8 mi. ESE Between discharge pipeline MH-5 and MH-3B. FC FC3 4.1 mi. SSE Between Hwy 94 and the barge loading dock access road. FC FC4 3 7.9 mi. SW South Callaway High School FC 1

Distances are measured from the midpoint of the two reactors as described in Final Safety Analysis Report (FSAR) Sec.

2.1.1.1.

2 AIO = Air Iodine, APT = Air Particulate, AQF = Fish, AQS = Sediment, FPL = Leafy Green Vegetables, FC = Food Crops, IDM = TLD, MLK = Milk, SOL = Soil, SWA = Surface Water, DWA = Drinking Water, WWA = Ground Water.

3 Control Location.

4 The expanded collection areas provide sufficient habitat to collect the required number of species.

16

Table 5.2. Collection Frequencies and Required Analyses 1 (January 1 through December 31, 2015)

Media Sample Type Collection Frequency Required Analyses Code Direct radiation IDM Quarterly Deep Dose Equivalent (DDE) 131 Airborne iodine AIO Weekly I Air particulate APT Weekly PGE5 each sample Surface water (river) SWA Monthly composite PGE and 3H PGE and 3H. If contaminated with Surface water (except UHS SWA Semiannually gamma emitting nuclides of plant pond) origin, analyze for HTD6 nuclides.

Surface water (UHS pond) SWA Semiannually PGE and 3H PGE and 3H. If contaminated with Groundwater (not potable) WWA Quarterly gamma emitting nuclides of plant origin, analyze for HTD nuclides.

PGE and 3H. If contaminated with Well water-potable DWA Monthly gamma emitting nuclides of plant origin, analyze for HTD nuclides.

Shoreline sediment AQS Semiannually PGE 2

Bottom sediment AQS Semiannually PGE Sludge pond sediment SOL Annually PGE Soil SOL Annually PGE Semimonthly when Milk animal MLK animals are on pasture, PGE and 131I monthly other times 3 Leafy green vegetables FPL Monthly when available 4 PGE and 131I Inedible crops FC At time of harvest PGE and 3H Fish AQF Semiannually PGE on edible portion 1

Samples required by ODCM unless specified otherwise.

2 Required by NPDES permit.

3 The grazing season is defined as April 15- December 15, but will vary according to weather conditions.

4 The growing season is defined as the months April 1- November 1, but will vary according to weather conditions.

5 Principal Gamma Emitters (PGE) are defined as 54Mn, 59Fe, 58Co, 60Co, 65Zn, 95Zr/Nb, 134Cs, 137Cs, 140Ba/La and other gamma- emitting nuclides that may be identified during the gamma spectroscopy analysis.

6 Hard to Detect (HTD) nuclides are defined as 89Sr, 90Sr, 55Fe, 63Ni, 237Np, 238Pu, 239/240Pu, 241Pu, 241Am, 242 Cm and 243/244Cm.

17

Table 5.3. Minimum Required Detection Capabilities for REMP Sample Analysis1 Food Non-Food Soil and Analysis Water Airborne Fish Milk (pCi/L) 3 (pCi/m ) (pCi/kg wet) (pCi/L)

Products Products Sediment (pCi/kg wet) (pCi/kg wet) (pCi/kg dry)

H-3 3000/20003 3000 Mn-54 15 130 Fe-59 30 260 Co-58/60 15 130 Zn-65 30 260 Zr-Nb-95 2 15 I-131 1000/13 0.07 1 60 Cs-134 15 0.05 130 15 60 60 150 Cs-137 18 0.06 150 18 80 80 180 Ba-La-140 2 15 15 1

This list does not mean only these nuclides will be detected and reported. Other peaks which are measurable and identifiable will be reported.

2 Total activity, parent plus daughter activity.

3 LLDs for Surface and Drinking / Ground water are the same, with the exception of H-3 and I-131. The Drinking / Ground water LLDs for H-3 and I-131 are 2000 and 1 pCi/liter respectively.

18

Table 5.4 2015 Land Use Census Results Closest Receptor in Miles 1, 2 Sector Residence Garden Milk 1 N(A) 1.84 NI NI NNE(B) 2.16 2.37 ** NI NE(C) 2.26 NI NI ENE(D) 1.66 2.86 NI E(E) 3.51 3.94 NI ESE(F) 2.11 NI NI SE(G) 2.21 NI NI SSE(H) 3.17 3.57 NI S(J) 2.86 2.86 NI SSW(K) 2.38 NI NI SW(L) 2.63 2.63 NI WSW(M) 1.20 1.96 NI W(N) 1.56 3.53 NI WNW(P) 1.93 1.93 NI NW(Q) 2.07 3.16 NI NNW(R) 1.81 NI NI 1

NI = None Identified.

2 Broadleaf Vegetation

• Declined to participate in the program.

• History as a poor provider, not included in program.

19

Table 5.5. Missed collections and analyses, Callaway Energy Center Sample Collection Date Type Analysis Location(s) or Period Comments WWA H-3, Gamma U1MW-28 01-28-15 Well dry.

Outer Casing covered in ice; well WWA H-3, Gamma WWA-937D 01-14-15 inaccessible.

WWA H-3, Gamma U1MW-028 04-20-15 Well dry.

AQS Gamma A&C 04-23-15 Indicator samples in wrong location.

FPL Gamma CA-FPL-V-9 05-11-15 Vegetables unavailable at this time.

FPL Gamma CA-FPL-V-11 05-11-15 Vegetables unavailable at this time.

FPL Gamma CA-FPL-V-12 05-11-15 Vegetables unavailable at this time.

FPL Gamma CA-FPL-V-16 05-11-15 Vegetables unavailable at this time.

FPL Gamma CA-FPL-V-9 06-10-15 Vegetables unavailable due to flooding.

DWA H-3, Gamma CA-DWA-8 07-29-15 Well pump off. Provider on vacation.

WWA H-3, Gamma U1MW-28 07-13-15 Well dry.

WWA H-3, Gamma Old Pipeline 07-15-15 Insufficient water for sample.

FPL Gamma CA-FPL-V-11 09-08-15 Garden done producing for the year.

FPL Gamma CA-FPL-V-16 09-08-15 Garden done producing for the year.

FC Gamma CA-FC-1 10-12-15 Field not planted.

FPL Gamma CA-FPL-V-9 10-13-15 Garden done producing for the year.

FPL Gamma CA-FPL-V-17 10-13-15 Garden done producing for the year.

AQS Gamma A&C 10-22-15 Indicator samples in wrong location.

DWA H-3, Gamma CA-DWA-5 10-26-15 Property sold. Not occupied.

WWA H-3, Gamma WWA-937B 11-12-15 Construction in area. Not safely accessible.

WWA H-3, Gamma WWA-937B 12-13-15 Construction in area. Not safely accessible.

20

Table 5.6 Radiological Environmental Monitoring Program Summary Number Indicator Location with Highest Control Non-Sample Type and Locations Annual Mean Locations Routine Req'd Results(e)

Type Number of Mean, Mean, LLD(b)

(Units) Analyses(a) Fraction, Mean, Fraction, Range (c) Location (d) Fraction, Range (c)

Range (c)

Waterborne Pathway 239 (4/12) SWA-S02 239 (4/12)

Surface Water H-3 24 3000 ND 0 (171-351) 4.9 mi SE (171-351)

(pCi/L)

GS 24 (b) ND - - ND 0 Surface Water, H-3 21 3000 178 (1/21) SWA-UHS 178 (1/21) none 0 Ponds (pCi/L) GS 21 (b) ND - - ND 0 H-3 83 2000 ND - - ND 0 Potable Wells (pCi/L) GS 83 (b) ND - - ND 0 1700 6237 (8/8)

Wells H-3 287 3000 (98/287) CA-U1MW-36 (1614- None 0 (non-potable) (156-13295) 13295)

(pCi/L)

GS 273 (b) ND - - ND 0 Cs-134 8 150 ND - - ND 0 Sediments (pCi/kg) dry 83 (2/4) CA-AQS-C 83 (2/4)

Cs-137 8 180 ND 0 (76-90) 4.9 mi SE (76-90)

Airborne Pathway Airborne Particulates GS 260 (b) ND - - None 0 3

(pCi/m )

Airborne I-131 260 0.07 ND - - None 0 Iodine 3

(pCi/m )

Soil Cs-134 18 150 ND - - ND 0 Soil (pCi/kg) dry 180 292 (10/14) F-002 511 (2/2) 115 (3/4) 0 Cs-137 18 (114-531) 1.0 mi. SW (491-531) (65-176) 21

Table 5.6 Radiological Environmental Monitoring Program Summary Indicator Location with Highest Control Annual Mean Number Sample Type and Locations Locations Req'd Non-Type Number of Mean, Mean, LLD(b) Mean, Routine (Units) Analyses(a) Fraction, Fraction, Location (d) Fraction, Results(e)

Range (c) Range (c)

Range (c)

Ingestion Pathway Food Products Leafy Green GS 30 (b) ND - - ND 0 Vegetables (pCi/kg wet)

Non- food H-3 (f) 7 3000 ND - - ND 0 Products Soybeans (pCi/kg) wet GS 7 (b) ND - - ND 0 Fish Edible Flesh GS 20 (b) ND - - ND 0 (pCi/kg) wet I-131 20 1 none - - ND 0 Milk (pCi/L)

GS 20 (b) ND - - ND 0 Direct Radiation 15.3 (Quarterly CA-IDM-27, 17.0 (4/4) 14.7 (12/12)

Gamma 172 (160/160) 0 TLDs) 9.3 mi. ESE (16.2-17.8) (10.5-17.8)

(10.6-17.8)

(mrem/Qtr)

Neutron 18 ND - - ND 0 (a) GS = gamma spectroscopy.

(b) LLD = nominal lower limit of detection based on a 4.66 sigma counting error for background sample. LLD's for gamma spectroscopy are in Table 5.3.

(c) Mean and range are based on detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parentheses (F). ND= not detected.

(d) Locations are specified by station code (Table 5.2) and distance (miles) and direction relative to reactor site.

(e) Non-routine results are those which exceed ten times the control station value. If no control station value is available, the result is considered non-routine if it exceeds ten times the preoperational value for the location.

(f) Units: pCi/L.

22

6.0 REFERENCES

Arnold, J. R. and H. A. Al-Salih. 1955. Beryllium-7 Produced by Cosmic Rays. Science 121: 451-453.

Eisenbud, M. 1963. Environmental Radioactivity, McGraw-Hill, New York, New York, pp. 213, 275-276.

Environmental, Inc., Midwest Laboratory. 2001 - 2014. Environmental Radiological Monitoring Program for the Callaway Energy Center, Annual Report - Part II, Data Tabulations and Analyses, January - December, 2000

- 2013.

2012. Quality Assurance Program Manual, Rev. 3, 14 November 2012.

2009. Quality Control Procedures Manual, Rev. 2, 08 July 2009.

2009. Quality Control Program, Rev. 2, 12 November 2009.

Gold, S., H. W. Barkhau, B. Shlein, and B. Kahn, 1964. Measurement of Naturally Occurring Radionuclides in Air, in the Natural Environment, University of Chicago Press, Chicago, Illinois, 369-382.

Hammer, Gregory R.,Climate of Missouri, monograph available from the National Climatic Data Center (NCDC) of the National Oceanic and Atmospheric Administration (NOAA). January, 2006.

National Center for Radiological Health, 1968. Radiological Health and Data Reports, Vol. 9, Number 12, 730-746.

Stanford Dosimetry, LLC, 2014. Environmental Dosimetry Company, Annual Quality Assurance Status Report, January-December, 2013.

Teledyne Brown Engineering Environmental Services, Midwest Laboratory. 1999 - 2000. Environmental Radiological Monitoring Program for the Callaway Plant, Annual Report - Part II, Data Tabulations and Analyses, January

- December, 1998 - 1999.

U.S. Environmental Protection Agency, 2007. RadNet, formerly Environmental Radiation Ambient Monitoring System, Gross Beta in Air (MO) 1981 - 2006, Gross Beta in Drinking Water (MO) 1982- 2004.

Wilson, D. W., G. M. Ward and J. E. Johnson. 1969. Environmental Contamination by Radioactive Materials, International Atomic Energy Agency. p.125.

23

APPENDIX A INTERLABORATORY COMPARISON PROGRAM RESULTS NOTE: Environmental Inc., Midwest Laboratory participates in intercomparison studies administered by Environmental Resources Associates, and serves as a replacement for studies conducted previously by the U.S. EPA Environmental Monitoring Systems Laboratory, Las Vegas, Nevada. Results are reported in Appendix A. TLD Intercomparison results, in-house spikes, blanks, duplicates and mixed analyte performance evaluation program results are also reported. Appendix A is updated four times a year; the complete Appendix is included in March, June, September and December monthly progress reports only.

January, 2015 through December, 2015

Appendix A Interlaboratory Comparison Program Results Environmental, Inc., Midwest Laboratory has participated in interlaboratory comparison (crosscheck) programs since the formulation of its quality control program in December 1971. These programs are operated by agencies which supply environmental type samples containing concentrations of radionuclides known to the issuing agency but not to participant laboratories. The purpose of such a program is to provide an independent check on a laboratorys analytical procedures and to alert it of any possible problems.

Participant laboratories measure the concentration of specified radionuclides and report them to the issuing agency. Several months later, the agency reports the known values to the participant laboratories and specifies control limits. Results consistently higher or lower than the known values or outside the control limits indicate a need to check the instruments or procedures used.

Results in Table A-1 were obtained through participation in the environmental sample crosscheck program administered by Environmental Resources Associates, serving as a replacement for studies conducted previously by the U.S. EPA Environmental Monitoring Systems Laboratory, Las Vegas, Nevada.

Table A-2 lists results for thermoluminescent dosimeters (TLDs), via internal laboratory testing and by irradiation and evaluation by the University of Wisconsin-Madison Radiation Calibration Laboratory at the University of Wisconsin Medical Radiation Research Center.

Table A-3 lists results of the analyses on in-house spiked samples for the past twelve months. All samples are prepared using NIST traceable sources. Data for previous years available upon request.

Table A-4 lists results of the analyses on in-house blank samples for the past twelve months. Data for previous years available upon request.

Table A-5 lists REMP specific analytical results from the in-house duplicate program for the past twelve months. Acceptance is based on the difference of the results being less than the sum of the errors.

Complete analytical data for duplicate analyses is available upon request.

The results in Table A-6 were obtained through participation in the Mixed Analyte Performance Evaluation Program.

Results in Table A-7 were obtained through participation in the environmental sample crosscheck program administered by Environmental Resources Associates, serving as a replacement for studies conducted previously by the Environmental Measurement Laboratory Quality Assessment Program (EML).

Attachment A lists the laboratory precision at the 1 sigma level for various analyses. The acceptance criteria in Table A-3 is set at +/- 2 sigma.

Out-of-limit results are explained directly below the result.

A1

Attachment A ACCEPTANCE CRITERIA FOR SPIKED SAMPLES LABORATORY PRECISION: ONE STANDARD DEVIATION VALUES FOR VARIOUS ANALYSESa One standard deviation Analysis Level for single determination Gamma Emitters 5 to 100 pCi/liter or kg 5.0 pCi/liter

> 100 pCi/liter or kg 5% of known value Strontium-89b 5 to 50 pCi/liter or kg 5.0 pCi/liter

> 50 pCi/liter or kg 10% of known value Strontium-90b 2 to 30 pCi/liter or kg 5.0 pCi/liter

> 30 pCi/liter or kg 10% of known value Potassium-40 0.1 g/liter or kg 5% of known value Gross alpha 20 pCi/liter 5.0 pCi/liter

> 20 pCi/liter 25% of known value Gross beta 100 pCi/liter 5.0 pCi/liter

> 100 pCi/liter 5% of known value Tritium 4,000 pCi/liter +/- 1 =

169.85 x (known)0.0933

> 4,000 pCi/liter 10% of known value Radium-226,-228 0.1 pCi/liter 15% of known value Plutonium 0.1 pCi/liter, gram, or sample 10% of known value Iodine-131, 55 pCi/liter 6 pCi/liter Iodine-129b > 55 pCi/liter 10% of known value Uranium-238, 35 pCi/liter 6 pCi/liter Nickel-63b > 35 pCi/liter 15% of known value Technetium-99b Iron-55b 50 to 100 pCi/liter 10 pCi/liter

> 100 pCi/liter 10% of known value Other Analyses b --- 20% of known value a

From EPA publication, Environmental Radioactivity Laboratory Intercomparison Studies Program, Fiscal Year, 1981-1982, EPA-600/4-81-004.

b Laboratory limit.

A2

TABLE A-1. Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA)a.

Concentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Result b Result c Limits Acceptance ERW-1444 4/6/2015 Sr-89 59.71 +/- 5.44 63.20 51.10 - 71.20 Pass ERW-1444 4/6/2015 Sr-90 43.41 +/- 2.43 41.90 30.80 - 48.10 Pass ERW-1448 4/6/2015 Ba-133 77.75 +/- 4.69 82.50 69.30 - 90.80 Pass ERW-1448 4/6/2015 Cs-134 68.82 +/- 3.08 75.70 61.80 - 83.30 Pass ERW-1448 4/6/2015 Cs-137 191.9 +/- 5.9 189.0 170.0 - 210.0 Pass ERW-1448 4/6/2015 Co-60 85.05 +/- 4.59 84.50 76.00 - 95.30 Pass ERW-1448 4/6/2015 Zn-65 196.0 +/- 12.0 203.0 183.0 - 238.0 Pass ERW-1450 4/6/2015 Gr. Alpha 34.05 +/- 1.90 42.60 22.10 - 54.00 Pass ERW-1450 4/6/2015 G. Beta 26.93 +/- 1.12 32.90 21.30 - 40.60 Pass ERW-1453 4/6/2015 I-131 22.47 +/- 0.83 23.80 19.70 - 28.30 Pass ERW-1456 4/6/2015 Ra-226 8.20 +/- 0.56 8.43 6.33 - 9.90 Pass ERW-1456 4/6/2015 Ra-228 5.00 +/- 0.67 4.39 2.56 - 6.01 Pass ERW-1456 4/6/2015 Uranium 5.98 +/- 0.31 6.59 4.99 - 7.83 Pass ERW-1461 4/6/2015 H-3 3,254 +/- 180 3280 2,770 - 3,620 Pass ERW-5528 10/5/2015 Sr-89 34.76 +/- 0.06 35.70 26.70 - 42.50 Pass ERW-5528 10/5/2015 Sr-90 29.23 +/- 0.06 31.10 22.70 - 36.10 Pass ERW-5531 10/5/2015 Ba-133 30.91 +/- 0.53 32.50 25.90 - 36.70 Pass ERW-5531 10/5/2015 Cs-134 57.40 +/- 2.57 62.30 50.69 - 68.50 Pass ERW-5531 10/5/2015 Cs-137 163.1 +/- 4.8 157.0 141.0 - 175.0 Pass ERW-5531 10/5/2015 Co-60 73.41 +/- 1.72 71.10 64.00 - 80.70 Pass ERW-5531 10/5/2015 Zn-65 138.9 +/- 5.7 126.0 113.0 - 149.0 Pass ERW-5534 10/5/2015 Gr. Alpha 29.99 +/- 0.08 51.60 26.90 - 64.70 Pass ERW-5534 10/5/2015 G. Beta 27.52 +/- 0.04 36.60 24.10 - 44.20 Pass ERW-5537 10/5/2015 I-131 25.54 +/- 0.60 26.30 21.90 - 31.00 Pass ERW-5540 10/5/2015 Ra-226 7.32 +/- 0.37 7.29 5.49 - 8.63 Pass ERW-5540 d 10/5/2015 Ra-228 7.80 +/- 0.02 4.25 2.46 - 5.85 Fail ERW-5540 e 10/5/2015 Ra-228 4.45 +/- 0.96 4.25 2.46 - 5.85 Pass ERW-5540 10/5/2015 Uranium 53.30 +/- 0.55 56.20 45.70 - 62.40 Pass ERW-5543 10/5/2015 H-3 21,260 +/- 351 21,300 18,700 - 23,400 Pass a

Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the crosscheck program for proficiency testing in drinking water conducted by Environmental Resources Associates (ERA).

b Unless otherwise indicated, the laboratory result is given as the mean +/- standard deviation for three determinations.

c Results are presented as the known values, expected laboratory precision (1 sigma, 1 determination) and control limits as provided by ERA.

d Ra-228 spike was at a level close to the detection level. The high result was likely caused by interference from short-lived Rn-222 daughters.

e The result of reanalysis (Compare to original result, footnoted "e" above).

A1-1

TABLE A-2. Table has been intentionally omitted.

A2-1

TABLE A-3. In-House "Spiked" Samples Concentration (pCi/L)a Lab Code b Date Analysis Laboratory results Known Control 2s, n=1 c Activity Limits d Acceptance W-020315 2/3/2015 Ra-226 16.19 +/- 0.42 16.70 13.36 - 20.04 Pass W-021215 2/12/2015 Gr. Alpha 18.38 +/- 0.39 20.10 16.08 - 24.12 Pass W-021215 2/12/2015 Gr. Beta 27.98 +/- 0.32 30.90 24.72 - 37.08 Pass SPW-687 2/27/2015 Ni-63 239.6 +/- 3.5 202.4 161.9 - 242.9 Pass SPAP-689 3/2/2015 Gr. Beta 42.37 +/- 3.50 43.61 34.89 - 52.33 Pass SPAP-691 3/2/2015 Cs-134 1.77 +/- 0.61 1.90 1.52 - 2.28 Pass SPAP-691 3/2/2015 Cs-137 83.02 +/- 2.60 97.20 77.76 - 116.64 Pass SPW-693 3/2/2015 Cs-134 44.30 +/- 2.53 53.40 42.72 - 64.08 Pass SPW-693 3/2/2015 Cs-137 74.82 +/- 3.50 73.80 59.04 - 88.56 Pass SPW-693 3/2/2015 Sr-89 87.45 +/- 3.62 87.48 69.98 - 104.98 Pass SPW-693 3/25/2015 Sr-90 37.22 +/- 1.55 38.10 30.48 - 45.72 Pass SPMI-697 3/2/2015 Cs-134 96.67 +/- 7.74 107.00 85.60 - 128.40 Pass SPMI-697 3/2/2015 Cs-137 78.51 +/- 7.02 73.84 59.07 - 88.61 Pass SPMI-697 3/2/2015 Sr-89 72.98 +/- 4.86 87.48 69.98 - 104.98 Pass SPMI-697 3/2/2015 Sr-90 39.17 +/- 1.51 38.10 30.48 - 45.72 Pass SPW-699 3/2/2015 H-3 59,592 +/- 703 58,445 46,756 - 70,134 Pass W-031115 3/11/2015 Ra-226 13.73 +/- 0.35 16.70 13.36 - 20.04 Pass W-030215 3/2/2015 Ra-228 32.79 +/- 2.31 31.44 25.15 - 37.73 Pass SPF-1040 3/16/2015 Cs-134 787.5 +/- 9.2 840.0 672.0 - 1,008.0 Pass SPF-1040 3/16/2015 Cs-137 2,599 +/- 24 2,360 1,888 - 2,832 Pass SPW-1036 3/25/2015 Fe-55 1,792 +/- 63 1961 1,569 - 2,353 Pass SPW-1374 4/6/2015 U-238 46.03 +/- 2.25 41.70 25.02 - 58.38 Pass W-040815 4/8/2015 Gr. Alpha 20.18 +/- 0.42 20.10 16.08 - 24.12 Pass W-040815 4/8/2015 Gr. Beta 29.70 +/- 0.33 30.90 24.72 - 37.08 Pass SPW-1038 4/13/2015 C-14 3,497 +/-9 4,734 2,840 - 6,628 Pass W-2165 4/20/2015 H-3 5550 +/- 226 5,780 3,468 - 8,092 Pass W-2165 4/20/2015 Sr-89 90.70 +/- 8.20 108.70 65.22 - 152.18 Pass W-2165 4/20/2015 Sr-90 76.80 +/- 2.00 75.90 45.54 - 106.26 Pass W-2165 4/20/2015 Cs-134 62.40 +/- 6.40 57.30 34.38 - 80.22 Pass W-2165 4/20/2015 Cs-137 91.30 +/- 7.70 84.00 50.40 - 117.60 Pass W-2392 4/13/2015 H-3 5032 +/- 214 5780 3468 - 8092 Pass W-2392 4/13/2015 Ni-63 222.4 +/- 3.8 202.0 121.2 - 282.8 Pass W-2392 4/13/2015 Cs-134 53.26 +/- 5.01 57.30 34.38 - 80.22 Pass W-2392 4/13/2015 Cs-137 91.90 +/- 7.76 84.20 50.52 - 117.88 Pass W-042415 4/24/2015 Ra-226 12.52 +/- 0.39 16.70 10.02 - 23.38 Pass W-050715 5/7/2015 Gr. Alpha 19.05 +/- 0.41 20.10 12.06 - 28.14 Pass W-050715 5/7/2015 Gr. Beta 27.30 +/- 0.32 30.90 18.54 - 43.26 Pass W-061215 6/12/2015 Gr. Alpha 20.72 +/- 0.44 20.10 12.06 - 28.14 Pass W-061215 6/12/2015 Gr. Beta 28.51 +/- 0.33 30.90 18.54 - 43.26 Pass U-2982 6/9/2015 Gr. Beta 500.1 +/- 5.1 604.0 362.4 - 845.6 Pass U-3200 6/9/2015 H-3 2229 +/- 424 2346 1408 - 3284 Pass W-70915 7/9/2015 Gr. Alpha 18.76 +/- 0.40 20.10 12.1 - 28.1 Pass W-70915 7/9/2015 Gr. Beta 29.71 +/- 0.33 30.90 18.5 - 43.3 Pass SPAP-3859 7/21/2015 Gr. Beta 41.59 +/- 0.12 43.61 26.17 - 61.05 Pass SPAP-3861 7/21/2015 Cs-134 1.69 +/- 0.60 1.69 1.0 - 2.4 Pass A3-1

TABLE A-3. In-House "Spiked" Samples Concentration (pCi/L)a Lab Code b Date Analysis Laboratory results Known Control 2s, n=1 c Activity Limits d Acceptance SPAP-3861 7/21/2015 Cs-137 93.71 +/- 2.64 96.45 57.87 - 135.03 Pass SPMI-3863 7/21/2015 Cs-134 38.21 +/- 5.12 47.02 28.21 - 65.83 Pass SPMI-3863 7/21/2015 Cs-137 78.65 +/- 7.94 73.18 43.91 - 102.45 Pass SPMI-3863 7/21/2015 Sr-90 41.05 +/- 1.62 37.78 22.67 - 52.89 Pass SPW-3871 7/21/2015 Cs-134 45.59 +/- 6.39 47.02 28.21 - 65.83 Pass SPW-3871 7/21/2015 Cs-137 78.73 +/- 7.03 73.18 43.91 - 102.45 Pass SPW-3871 7/21/2015 Sr-90 38.36 +/- 1.58 37.78 22.67 - 52.89 Pass SPW-3873 7/21/2015 H-3 60,034 +/- 671 57,199 34,319 - 80,079 Pass SPW-3875 7/21/2015 Ni-63 451.3 +/- 3.3 403.7 242.2 - 565.2 Pass SPW-3877 7/21/2015 Tc-99 483.0 +/- 8.3 539.1 323.5 - 754.7 Pass SPMI-3879 7/21/2015 C-14 4,921 +/- 19 4,736 2,842 - 6,630 Pass SPSO-4037 7/21/2015 Ni-63 42,458 +/- 309 40,370 24,222 - 56,518 Pass SPW-072515 7/17/2015 Ra-228 35.48 +/-3 31.44 18.86 - 44.02 Pass SPF-4104 7/29/2015 Cs-134 661.5 +/- 115.9 740.0 444.0 - 1036.0 Pass SPF-4104 7/29/2015 Cs-137 2,469 +/- 59 2,340 1,404 - 3,276 Pass SPW-81015 8/10/2015 Gr. Alpha 21.59 +/- 0.46 20.10 12.06 - 28.14 Pass SPW-81015 8/10/2015 Gr. Beta 27.58 +/- 0.32 30.90 18.54 - 43.26 Pass SPW-81315 8/13/2015 Ra-226 15.05 +/- 0.36 16.70 10.02 - 23.38 Pass SPW-90615 9/6/2015 Gr. Alpha 18.32 +/- 0.40 20.10 12.06 - 28.14 Pass SPW-90615 9/6/2015 Gr. Beta 29.43 +/- 0.33 30.90 18.54 - 43.26 Pass W-091415 9/14/2016 Gr. Alpha 19.35 +/- 0.51 20.10 12.06 - 28.14 Pass W-091415 9/14/2016 Gr. Beta 31.53 +/- 0.35 30.90 18.54 - 43.26 Pass W-100815 10/8/2015 Ra-228 12.27 +/- 0.33 16.70 10.02 - 23.38 Pass W-100615 10/6/2016 Gr. Alpha 20.62 +/- 0.43 20.10 12.06 - 28.14 Pass W-100615 10/6/2016 Gr. Beta 29.35 +/- 0.33 30.90 18.54 - 43.26 Pass W-5277 10/16/2015 H-3 5,224 +/- 218 5,466 3,280 - 7,652 Pass W-5277 10/16/2015 Cs-134 99.40 +/- 6.64 99.20 59.52 - 138.88 Pass W-5277 10/16/2015 Cs-137 89.60 +/- 6.64 83.20 49.92 - 116.48 Pass W-110415 11/4/2015 Ra-226 12.27 +/- 0.33 16.70 10.02 - 23.38 Pass W-111115 11/11/2015 Ra-228 31.78 +/- 2.48 31.44 18.86 - 44.02 Pass W-6086,6087 11/18/2015 H-3 10,882 +/- 309 11,231 6,738 - 15,723 Pass W-6086,6087 11/18/2015 Cs-134 92.98 +/- 7.29 96.25 57.75 - 134.75 Pass W-6086,6087 11/18/2015 Cs-137 76.65 +/- 7.81 82.94 49.76 - 116.12 Pass W-112515 11/25/2015 Gr. Alpha 20.91 +/- 0.52 20.10 12.06 - 28.14 Pass W-112515 11/25/2015 Gr. Beta 31.59 +/- 0.35 30.90 18.54 - 43.26 Pass W-120715 12/7/2015 Fe-55 2,431 +/- 97 2,319 1,391 - 3,247 Pass W-120815 12/8/2015 Gr. Alpha 20.72 +/- 0.43 20.10 12.06 - 28.14 Pass W-120815 12/8/2015 Gr. Beta 29.50 +/- 0.33 30.90 18.54 - 43.26 Pass W-121515 12/15/2015 Ra-226 14.77 +/- 0.42 16.70 10.02 - 23.38 Pass a

Liquid sample results are reported in pCi/Liter, air filters( pCi/m3), charcoal (pCi/charcoal canister), and solid samples (pCi/kg).

b Laboratory codes : W (Water), MI (milk), AP (air filter), SO (soil), VE (vegetation), CH (charcoal canister), F (fish), U (urine).

c Results are based on single determinations.

d Control limits are established from the precision values listed in Attachment A of this report, adjusted to +/- 2s.

NOTE: For fish, Jello is used for the spike matrix. For vegetation, cabbage is used for the spike matrix.

A3-2

TABLE A-4. In-House "Blank" Samples Concentration (pCi/L)a b

Lab Code Sample Date Analysis Laboratory results (4.66s) Acceptance Type LLD Activityc Criteria (4.66 s)

W-020315 Water 2/3/2015 Ra-226 0.03 0.03 +/- 0.02 1 W-021215 Water 2/12/2015 Gr. Alpha 0.47 -0.37 +/- 0.30 2 W-021215 Water 2/12/2015 Gr. Beta 0.76 -0.62 +/- 0.51 4 SPW-686 Water 2/27/2015 Ni-63 2.36 -0.74 +/- 1.42 20 SPAP-688 Air Particulate 3/2/2015 Gr. Beta 0.003 -0.001 +/- 0.002 0.01 SPAP-690 Air Particulate 3/2/2015 Cs-134 0.006 0.428 +/- 0.927 0.05 SPAP-690 Air Particulate 3/2/2015 Cs-137 0.006 -0.785 +/- 1.146 0.05 W-030215 Water 3/2/2015 Ra-228 0.76 0.22 +/- 0.38 2 SPW-692 Water 3/2/2015 Cs-134 6.70 -1.57 +/- 3.55 10 SPW-692 Water 3/2/2015 Cs-137 6.18 -0.15 +/- 3.20 10 SPW-692 Water 3/2/2015 Sr-89 0.61 -0.51 +/- 0.51 5 SPW-692 Water 3/2/2015 Sr-90 0.60 0.38 +/- 0.33 1 SPMI-696 Milk 3/2/2015 Cs-134 3.75 -0.25 +/- 2.24 10 SPMI-696 Milk 3/2/2015 Cs-137 4.36 -0.25 +/- 2.24 10 SPMI-696 Milk 3/2/2015 Sr-89 0.80 -0.40 +/- 0.84 5 SPMI-696 Milk 3/2/2015 Sr-90 0.49 0.98 +/- 0.32 1 SPW-698 Water 3/2/2015 H-3 144.0 28.6 +/- 88.9 200 SPW-1035 Water 3/16/2015 Fe-55 599.7 72.6 +/- 368.1 1000 SPW-1037 Water 3/16/2015 C-14 8.94 2.16 +/- 5.47 200 SPF-1039 Fish 3/16/2015 Cs-134 13.54 -1.00 +/- 6.80 100 SPF-1039 Fish 3/16/2015 Cs-137 9.80 4.87 +/- 7.00 100 W-040615 Water 4/6/2015 Ra-226 0.04 0.01 +/- 0.03 2 W-1373 Water 4/6/2015 U-238 0.08 0.01 +/- 0.01 1 W-1375 Water 4/6/2015 Pu-238 0.03 0.00 +/- 0.01 1 W-050715 Water 5/7/2015 Gr. Alpha 0.38 -0.10 +/- 0.25 2 W-050715 Water 5/7/2015 Gr. Beta 0.74 -0.14 +/- 0.51 4 W-061215 Water 6/12/2015 Gr. Alpha 0.42 -0.10 +/- 0.29 2 W-061215 Water 6/12/2015 Gr. Beta 0.75 -0.04 +/- 0.53 4 SPW-3858 Water 7/21/2015 Gr. Beta 0.003 0.004 +/- 0.002 2 SPAP-3860 Air Particulate 7/21/2015 Cs-134 0.011 0.010 +/- 0.005 0.05 SPAP-3860 Air Particulate 7/21/2015 Cs-137 0.009 0.000 +/- 0.005 0.05 SPMI-3862 Milk 7/21/2015 Cs-134 3.13 1.56 +/- 1.74 10 SPMI-3862 Milk 7/21/2015 Cs-137 3.20 1.69 +/- 1.89 10 SPMI-3862 Milk 7/21/2015 Sr-89 2.17 -1.30 +/- 2.05 5 SPMI-3862 Milk 7/21/2015 Sr-90 0.90 0.74 +/- 0.50 1 SPW-3870 Water 7/21/2015 Cs-134 3.01 0.71 +/- 1.66 10 SPW-3870 Water 7/21/2015 Cs-137 3.94 0.81 +/- 1.86 10 SPW-3870 Water 7/21/2015 Sr-89 2.28 -0.42 +/- 1.80 5 SPW-3870 Water 7/21/2015 Sr-90 0.84 0.25 +/- 0.42 1 A4-1

TABLE A-4. In-House "Blank" Samples Concentration (pCi/L)a b

Lab Code Sample Date Analysis Laboratory results (4.66s) Acceptance Type LLD Activityc Criteria (4.66 s)

SPW-3872 Water 7/21/2015 H-3 142.6 82.7 +/- 79.4 200 SPW-3874 Water 7/21/2015 Ni-63 2.98 0.77 +/- 1.82 20 SPW-3876 Water 7/21/2015 Tc-99 5.49 -3.81 +/- 3.26 10 SPW-3878 Water 7/21/2015 C-14 17.06 8.52 +/- 10.54 200 SPSO-4036 Soil 7/21/2015 Ni-63 135.7 51.3 +/- 83.0 1000 SPF-4103 Fish 7/29/2015 Cs-134 14.17 -37.70 +/- 9.67 100 SPF-4103 Fish 7/29/2015 Cs-137 12.39 1.13 +/- 8.06 100 W-081015 Water 8/10/2015 Gr. Alpha 0.48 -0.10 +/- 0.33 2 W-081015 Water 8/10/2015 Gr. Beta 0.78 -0.18 +/- 0.54 4 W-081815 Water 8/18/2015 Ra-226 0.03 0.03 +/- 0.02 2 W-090615 Water 9/6/2015 Gr. Alpha 0.40 0.00 +/- 0.28 2 W-090615 Water 9/6/2015 Gr. Beta 0.77 0.22 +/- 0.54 4 W-091415 Water 9/14/2015 Gr. Alpha 0.41 0.10 +/- 0.30 2 W-091415 Water 9/14/2015 Gr. Beta 0.77 0.04 +/- 0.54 4 W-100615 Water 10/6/2015 Gr. Alpha 0.41 -0.15 +/- 0.27 2 W-100615 Water 10/6/2015 Gr. Beta 0.75 -0.12 +/- 0.52 4 W-112515 Water 11/25/2015 Gr. Alpha 0.42 0.05 +/- 0.30 2 W-112515 Water 11/25/2015 Gr. Beta 0.78 -0.31 +/- 0.54 4 W-120815 Water 12/8/2015 Gr. Alpha 0.42 -0.08 +/- 0.29 2 W-120815 Water 12/8/2015 Gr. Beta 0.76 0.17 +/- 0.54 4 W-121515 Water 12/15/2015 Ra-226 0.01 0.01 +/- 0.01 2 a

Liquid sample results are reported in pCi/Liter, air filters( pCi/m3), charcoal (pCi/charcoal canister), and solid samples (pCi/kg).

b I-131(G); iodine-131 as analyzed by gamma spectroscopy.

c Activity reported is a net activity result.

A4-2

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance CF-62,63 1/7/2015 Gr. Beta 5.72 +/- 0.12 5.78 +/- 0.12 5.75 +/- 0.42 Pass CF-62,63 1/7/2015 Be-7 0.915 +/- 0.135 0.919 +/- 0.102 0.917 +/- 0.15 Pass CF-62,63 1/7/2015 K-40 3.97 +/- 0.28 3.88 +/- 0.23 3.92 +/- 0.33 Pass CF-62,63 1/7/2015 Sr-90 0.017 +/- 0.006 0.011 +/- 0.006 0.014 +/- 0.004 Pass SG-83,84 1/12/2015 K-40 10.11 +/- 1.42 9.69 +/- 1.20 9.90 +/- 1.16 Pass SG-83,84 1/12/2015 Tl-208 0.57 +/- 0.07 0.56 +/- 0.06 0.57 +/- 0.05 Pass SG-83,84 1/12/2015 Pb-212 1.73 +/- 0.10 1.58 +/- 0.09 1.65 +/- 0.13 Pass SG-83,84 1/12/2015 Pb-214 13.33 +/- 0.33 13.88 +/- 0.28 13.61 +/- 0.22 Pass SG-83,84 1/12/2015 Bi-214 13.48 +/- 0.39 13.45 +/- 0.29 13.47 +/- 0.24 Pass SG-83,84 1/12/2015 Ra-226 25.68 +/- 2.19 26.22 +/- 1.53 25.95 +/- 1.34 Pass SG-83,84 1/12/2015 Ac-228 13.33 +/- 0.59 12.86 +/- 0.43 13.09 +/- 0.36 Pass AP-011215A/B 1/12/2015 Gr. Beta 0.025 +/- 0.004 0.023 +/- 0.004 0.024 +/- 0.003 Pass WW-315,316 1/27/2015 H-3 1,961 +/- 178 1,868 +/- 174 1,915 +/- 124 Pass DW-60010,60011 1/28/2015 Ra-226 1.25 +/- 0.14 1.40 +/- 0.15 1.33 +/- 0.10 Pass DW-60010,60011 1/28/2015 Ra-228 2.00 +/- 0.66 1.39 +/- 0.60 1.70 +/- 0.45 Pass SG-336,337 1/30/2015 Bi-214 6.63 +/- 0.20 6.45 +/- 0.45 6.54 +/- 0.21 Pass SG-336,337 1/30/2015 Pb-214 6.45 +/- 0.19 6.45 +/- 0.37 6.45 +/- 0.21 Pass SG-336,337 1/30/2015 Ac-228 4.43 +/- 0.24 4.20 +/- 0.58 4.32 +/- 0.31 Pass AP-020415A/B 2/4/2015 Gr. Beta 0.021 +/- 0.004 0.019 +/- 0.035 0.035 +/- 0.020 Pass AP-021115A/B 2/11/2015 Gr. Beta 0.034 +/- 0.004 0.040 +/- 0.047 0.037 +/- 0.003 Pass DW-60023,60024 2/26/2015 Ra-226 1.52 +/- 0.15 1.51 +/- 0.15 1.52 +/- 0.11 Pass DW-60023,60024 2/26/2015 Ra-228 0.97 +/- 0.48 1.66 +/- 0.58 1.32 +/- 0.38 Pass S-799,800 2/26/2015 K-40 11.96 +/- 0.98 11.49 +/- 0.82 11.72 +/- 0.64 Pass S-799,800 2/26/2015 Tl-208 0.36 +/- 0.04 0.31 +/- 0.04 0.34 +/- 0.03 Pass S-799,800 2/26/2015 Pb-212 0.92 +/- 0.06 0.91 +/- 0.06 0.91 +/- 0.05 Pass S-799,800 2/26/2015 Bi-212 1.26 +/- 0.45 1.50 +/- 0.40 1.38 +/- 0.30 Pass S-799,800 2/26/2015 Ac-228 1.35 +/- 0.22 1.23 +/- 0.17 1.29 +/- 0.14 Pass SG-834,835 2/2/2015 Gr. Alpha 113.3 +/- 6.3 117.2 +/- 2.8 115.2 +/- 3.4 Pass SG-834,835 2/2/2015 Gr. Beta 82.27 +/- 2.79 84.33 +/- 2.74 83.30 +/- 1.96 Pass DW-60031,60032 3/4/2015 Gr. Alpha 185.4 +/- 7.4 177.0 +/- 7.2 181.2 +/- 5.2 Pass DW-60036,60037 3/4/2015 Ra-226 6.89 +/- 0.34 6.88 +/- 0.32 6.89 +/- 0.23 Pass DW-60036,60037 3/4/2015 Ra-228 4.43 +/- 0.73 4.41 +/- 0.72 4.42 +/- 0.51 Pass DW-60048,60049 3/4/2015 Ra-226 0.84 +/- 0.10 0.94 +/- 0.11 0.89 +/- 0.07 Pass DW-60048,60049 3/4/2015 Ra-228 0.68 +/- 0.41 1.42 +/- 0.58 1.05 +/- 0.36 Pass AP-1169,1170 3/19/2015 Be-7 0.20 +/- 0.02 0.24 +/- 0.10 0.22 +/- 0.07 Pass DW-60069,60070 4/8/2015 Gr. Alpha 3.58 +/- 0.88 3.92 +/- 0.88 3.75 +/- 0.62 Pass AP-040915 4/9/2015 Gr. Beta 0.027 +/- 0.005 0.023 +/- 0.005 0.025 +/- 0.003 Pass WW-2394,2395 4/13/2015 H-3 1,628 +/- 139 1,695 +/- 141 1,662 +/- 99 Pass SG-1847,1848 4/20/2015 K-40 3.24 +/- 1.18 1.99 +/- 0.76 2.62 +/- 0.70 Pass SG-1847,1848 4/20/2015 Pb-214 5.80 +/- 0.22 6.23 +/- 0.76 6.02 +/- 0.40 Pass SG-1847,1848 4/20/2015 Ac-228 5.26 +/- 0.51 5.00 +/- 0.42 5.13 +/- 0.33 Pass XWW-2267,2268 4/23/2015 H-3 6,584 +/- 244 6,164 +/- 237 6,374 +/- 170 Pass XWW-2078,2079 4/27/2015 H-3 359.0 +/- 89.6 418.7 +/- 92.3 388.9 +/- 64.3 Pass A5-1

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance XWW-2162,2163 4/28/2015 H-3 4,408 +/- 201 4,242 +/- 198 4,325 +/- 141 Pass SG-1868,1869 4/28/2015 Gr. Alpha 47.57 +/- 3.63 43.61 +/- 3.58 45.59 +/- 2.55 Pass SG-1868,1869 4/28/2015 Gr. Beta 50.90 +/- 1.94 51.90 +/- 2.02 51.40 +/- 1.40 Pass SG-1868,1869 4/28/2015 Pb-214 13.80 +/- 0.52 13.54 +/- 0.62 13.67 +/- 0.40 Pass SG-1868,1869 4/28/2015 Ra-228 20.10 +/- 0.92 22.10 +/- 1.29 21.10 +/- 0.79 Pass AP-042915 4/29/2015 Gr. Beta 0.014 +/- 0.003 0.014 +/- 0.003 0.014 +/- 0.002 Pass DW-60076,60077 5/4/2015 Ra-228 2.89 +/- 0.61 2.45 +/- 0.57 2.67 +/- 0.42 Pass AP-050515 5/5/2015 Gr. Beta 0.026 +/- 0.004 0.025 +/- 0.004 0.026 +/- 0.003 Pass AP-051115 5/11/2015 Gr. Beta 0.006 +/- 0.005 0.010 +/- 0.005 0.008 +/- 0.004 Pass DW-60087,60088 5/14/2015 Ra-226 1.58 +/- 0.17 1.52 +/- 0.17 1.55 +/- 0.12 Pass DW-60087,60088 5/14/2015 Ra-228 0.94 +/- 0.50 0.94 +/- 0.50 0.94 +/- 0.35 Pass SG-2436,2437 5/15/2015 Pb-214 22.90 +/- 2.31 24.10 +/- 2.43 23.50 +/- 1.68 Pass SG-2436,2437 5/15/2015 Ra-228 47.95 +/- 0.61 47.80 +/- 0.71 47.88 +/- 0.47 Pass SG-2436,2437 5/15/2015 Gr. Alpha 267.8 +/- 7.9 254.6 +/- 7.6 261.2 +/- 5.5 Pass SG-2458,2459 5/19/2015 Pb-214 75.00 +/- 1.66 77.70 +/- 1.75 76.35 +/- 1.21 Pass SG-2458,2459 5/19/2015 Ra-228 41.10 +/- 0.92 40.80 +/- 0.83 40.95 +/- 0.62 Pass DW-60095,60096 5/26/2015 Gr. Alpha 1.34 +/- 0.69 0.91 +/- 0.62 1.13 +/- 0.46 Pass AP-052715 5/27/2015 Gr. Beta 0.010 +/- 0.003 0.010 +/- 0.003 0.010 +/- 0.002 Pass S-2627,2628 5/29/2015 Pb-214 0.85 +/- 0.07 0.85 +/- 0.07 0.85 +/- 0.05 Pass S-2627,2628 5/29/2015 Ac-228 0.85 +/- 0.14 1.08 +/- 0.12 0.97 +/- 0.09 Pass S-2627,2628 5/29/2015 Cs-137 0.07 +/- 0.02 0.07 +/- 0.02 0.07 +/- 0.01 Pass S-2605,2606 6/1/2015 Ac-228 0.42 +/- 0.06 0.38 +/- 0.07 0.40 +/- 0.05 Pass S-2605,2606 6/1/2015 Ra-226 0.44 +/- 0.03 0.49 +/- 0.03 0.47 +/- 0.02 Pass S-2605,2606 6/1/2015 K-40 10.89 +/- 0.51 11.40 +/- 0.48 11.15 +/- 0.35 Pass S-2605,2606 6/1/2015 Cs-137 0.05 +/- 0.01 0.05 +/- 0.01 0.05 +/- 0.01 Pass S-2858,2859 6/2/2015 Cs-137 34.30 +/- 16.05 40.66 +/- 17.79 37.48 +/- 11.98 Pass S-2858,2859 6/2/2015 Be-7 1501 +/- 264 1171 +/- 214 1336 +/- 170 Pass S-2858,2859 6/2/2015 K-40 22,122 +/- 658 20,987 +/- 600 21,555 +/- 445 Pass AP-060315 6/3/2015 Gr. Beta 0.022 +/- 0.004 0.021 +/- 0.004 0.022 +/- 0.003 Pass DW-30107,30108 6/8/2015 Gr. Alpha 1.34 +/- 0.82 1.47 +/- 0.85 1.41 +/- 0.59 Pass SG-2900,2901 6/9/2015 Ac-228 10.22 +/- 1.36 8.32 +/- 1.07 9.27 +/- 0.87 Pass SG-2900,2901 6/9/2015 Pb-214 7.55 +/- 0.43 7.27 +/- 0.41 7.41 +/- 0.30 Pass AP-061515 6/15/2015 Gr. Beta 0.022 +/- 0.004 0.021 +/- 0.004 0.022 +/- 0.003 Pass XWW-3173,3174 6/18/2015 H-3 841.9 +/- 123.6 799.3 +/- 122.4 820.6 +/- 87.0 Pass AP-062215 6/22/2015 Gr. Beta 0.023 +/- 0.004 0.018 +/- 0.004 0.020 +/- 0.003 Pass S-3216,3217 6/24/2015 K-40 10.38 +/- 0.51 10.51 +/- 0.53 10.45 +/- 0.37 Pass S-3216,3217 6/24/2015 Be-7 3.65 +/- 0.24 3.38 +/- 0.27 3.52 +/- 0.18 Pass VE-3300,3301 6/24/2015 Be-7 0.78 +/- 0.15 0.83 +/- 0.23 0.81 +/- 0.14 Pass VE-3300,3301 6/24/2015 K-40 29.12 +/- 0.62 29.36 +/- 0.64 29.24 +/- 0.45 Pass AP-062915 6/29/2015 Gr. Beta 0.023 +/- 0.005 0.023 +/- 0.005 0.023 +/- 0.003 Pass WW-3632,3633 6/30/2015 H-3 5,169 +/- 225 5,058 +/- 223 5,114 +/- 158 Pass A5-2

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance AP-3822, 3823 7/1/2015 Be-7 0.075 +/- 0.011 0.068 +/- 0.012 0.072 +/- 0.008 Pass AP-3969, 3970 7/1/2015 Be-7 0.063 +/- 0.008 0.064 +/- 0.010 0.063 +/- 0.006 Pass WW-3632, 3633 7/6/2015 H-3 5,169 +/- 225 5,058 +/- 223 5,114 +/- 159 Pass W-4368, 4369 7/6/2015 Gr. Alpha 26.70 +/- 4.00 24.10 +/- 3.90 25.40 +/- 2.79 Pass W-4368, 4369 7/6/2015 Gr. Beta 34.62 +/- 2.10 33.30 +/- 2.02 33.96 +/- 1.46 Pass DW-60138, 60139 7/7/2015 Ra-226 0.07 +/- 0.04 0.11 +/- 0.05 0.09 +/- 0.03 Pass DW-60138, 60139 7/7/2015 Ra-228 1.04 +/- 0.41 1.15 +/- 0.47 1.10 +/- 0.31 Pass WW-4158, 4159 7/9/2015 H-3 138.8 +/- 82.4 174.0 +/- 84.1 156.4 +/- 58.9 Pass MI-2902, 2903 7/10/2015 K-40 1271 +/- 118 1308 +/- 115 1289 +/- 82 Pass SG-3533, 3534 7/10/2015 Gr. Alpha 238.0 +/- 8.2 249.5 +/- 8.5 243.8 +/- 5.9 Pass DW-60150, 60151 7/10/2015 Ra-226 1.53 +/- 0.16 1.49 +/- 0.12 1.51 +/- 0.10 Pass DW-60150, 60151 7/10/2015 Ra-228 2.68 +/- 0.68 1.89 +/- 0.62 2.29 +/- 0.46 Pass VE-3716, 3717 7/14/2015 K-40 3.85 +/- 0.33 3.71 +/- 0.31 3.78 +/- 0.23 Pass MI-3759, 3760 7/15/2015 K-40 1819 +/- 127 1764 +/- 140 1791 +/- 94 Pass MI-3759, 3760 7/15/2015 Sr-90 1.00 +/- 0.36 0.61 +/- 0.32 0.80 +/- 0.24 Pass AP-072115 7/21/2015 Gr. Beta 0.022 +/- 0.004 0.027 +/- 0.004 0.024 +/- 0.003 Pass VE-4053, 4054 7/21/2015 Be-7 0.52 +/- 0.15 0.49 +/- 0.11 0.50 +/- 0.09 Pass VE-4053, 4054 7/21/2015 K-40 8.00 +/- 0.42 7.61 +/- 0.31 7.81 +/- 0.26 Pass AP-4200, 4201 7/29/2015 Be-7 1.06 +/- 0.12 0.96 +/- 0.11 1.01 +/- 0.08 Pass AP-4200, 4201 7/29/2015 K-40 5.03 +/- 0.24 4.96 +/- 0.23 4.99 +/- 0.16 Pass W-4137, 4138 7/31/2015 Ra-226 0.58 +/- 0.13 0.45 +/- 0.14 0.52 +/- 0.10 Pass XWW-4431, 4432 8/5/2015 H-3 4,773 +/- 213 4,915 +/- 216 4,844 +/- 152 Pass SG-4305, 4306 8/6/2015 Ra-228 10.34 +/- 0.58 11.46 +/- 0.62 10.90 +/- 0.42 Pass AP-081015 8/10/2015 Gr. Beta 0.038 +/- 0.005 0.039 +/- 0.005 0.039 0.004 Pass AP-081115 8/11/2015 Gr. Beta 0.024 +/- 0.004 0.020 +/- 0.004 0.022 0.003 Pass VE-4452, 4453 8/11/2015 K-40 3.77 +/- 0.29 3.78 +/- 0.26 3.77 +/- 0.20 Pass AP-081715 8/17/2015 Gr. Beta 0.030 +/- 0.005 0.030 +/- 0.005 0.030 +/- 0.003 Pass DW-60195, 60196 8/17/2015 Ra-226 0.39 +/- 0.10 0.37 +/- 0.10 0.38 +/- 0.07 Pass DW-60195, 60196 8/17/2015 Ra-228 1.43 +/- 0.51 1.97 +/- 0.61 1.70 +/- 0.40 Pass DW-60198, 60199 8/17/2015 Gr. Alpha 2.93 +/- 0.94 2.11 +/- 0.96 2.52 +/- 0.67 Pass VE-4578, 4579 8/18/2015 K-40 4.14 +/- 0.25 4.32 +/- 0.24 4.23 +/- 0.17 Pass SW-4662, 4663 8/25/2015 H-3 351.3 +/- 89.8 415.6 +/- 92.8 383.4 +/- 64.6 Pass DW-60212, 60213 8/25/2015 Ra-226 0.09 +/- 0.07 0.10 +/- 0.08 0.10 +/- 0.05 Pass LW-4788, 4789 8/27/2015 Gr. Beta 0.97 +/- 0.51 1.68 +/- 0.59 1.32 +/- 0.39 Pass AP-083115 8/31/2015 Gr. Beta 0.032 +/- 0.005 0.031 +/- 0.005 0.031 +/- 0.003 Pass AP-4875, 4876 9/3/2015 Be-7 0.294 +/- 0.125 0.202 +/- 0.109 0.248 +/- 0.083 Pass VE-5083, 5084 9/14/2015 Be-7 0.47 +/- 0.23 0.56 +/- 0.19 0.52 +/- 0.15 Pass VE-5083, 5084 9/14/2015 K-40 6.20 +/- 0.51 6.36 +/- 0.50 6.28 +/- 0.36 Pass VE-5167, 5168 9/16/2015 Be-7 0.40 +/- 0.11 0.41 +/- 0.10 0.41 +/- 0.07 Pass VE-5167, 5168 9/16/2015 K-40 3.56 +/- 0.27 3.91 +/- 0.24 3.74 +/- 0.18 Pass BS-5188, 5189 9/16/2015 K-40 9.69 +/- 0.51 10.51 +/- 0.52 10.10 +/- 0.36 Pass F-5419, 5420 9/17/2015 K-40 3.48 +/- 0.47 3.49 +/- 0.56 3.49 +/- 0.36 Pass DW-60238, 60239 9/18/2015 Ra-226 1.93 +/- 0.23 2.31 +/- 0.26 2.12 +/- 0.17 Pass DW-60238, 60239 9/18/2015 Ra-228 4.44 +/- 0.78 5.61 +/- 0.84 5.03 +/- 0.57 Pass AP-092215A/B 9/22/2015 Gr. Beta 0.021 +/- 0.004 0.025 +/- 0.004 0.023 +/- 0.00 Pass WW-5398, 5399 9/22/2015 H-3 1,857 +/- 145 1,846 +/- 144 1,852 +/- 102 Pass AP-6007, 6008 9/28/2015 Be-7 0.08 +/- 0.01 0.08 +/- 0.01 0.08 +/- 0.01 Pass A5-3

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance XW-7490, 7491 9/29/2015 Ni-63 2,332 +/- 233 2,108 +/- 211 2,220 +/- 157 Pass WW-5377, 5378 9/30/2015 H-3 220.0 +/- 84.6 197.0 +/- 83.5 208.5 +/- 59.4 Pass AP-6028, 6029 9/30/2015 Be-7 0.073 +/- 0.009 0.083 +/- 0.012 0.078 +/- 0.007 Pass G-5461,2 10/1/2015 Be-7 2.02 +/- 0.32 1.98 +/- 0.25 2.00 +/- 0.20 Pass G-5461,2 10/1/2015 K-40 8.77 +/- 0.66 9.31 +/- 0.59 9.04 +/- 0.44 Pass SO-5482, 5483 10/1/2015 Ac-228 0.76 +/- 0.12 0.74 +/- 0.30 0.75 +/- 0.16 Pass SO-5482, 5483 10/1/2015 Bi-214 0.53 +/- 0.04 0.52 +/- 0.04 0.52 +/- 0.03 Pass SO-5482, 5483 10/1/2015 Cs-137 0.12 +/- 0.03 0.12 +/- 0.03 0.12 +/- 0.02 Pass SO-5482, 5483 10/1/2015 K-40 2.17 +/- 0.73 2.10 +/- 0.72 2.13 +/- 0.51 Pass SO-5482, 5483 10/1/2015 Pb-214 0.57 +/- 0.04 0.55 +/- 0.04 0.56 +/- 0.03 Pass SO-5482, 5483 10/1/2015 Ra-226 1.45 +/- 0.27 1.46 +/- 0.30 1.45 +/- 0.20 Pass SO-5482, 5483 10/1/2015 Tl-208 0.24 +/- 0.03 0.25 +/- 0.03 0.24 +/- 0.02 Pass WW-5524, 5525 10/5/2015 H-3 1,192 +/- 123 1,318 +/- 127 1,255 +/- 89 Pass AP-5881, 5882 10/5/2015 Be-7 0.078 +/- 0.008 0.085 +/- 0.011 0.082 +/- 0.007 Pass AP-5881, 5882 10/5/2015 K-40 0.009 +/- 0.004 0.010 +/- 0.006 0.010 +/- 0.004 Pass SG-6400,1 10/5/2015 Gr. Alpha 19.09 +/- 3.14 19.45 +/- 3.25 19.27 +/- 2.26 Pass SG-6400,1 10/5/2015 Gr. Beta 31.36 +/- 2.08 29.80 +/- 2.13 30.58 +/- 1.49 Pass VE-5923, 5924 10/12/2015 K-40 4.29 +/- 0.29 4.13 +/- 0.33 4.21 +/- 0.22 Pass SS-5818, 5819 10/14/2015 Ac-228 0.20 +/- 0.06 0.24 +/- 0.06 0.22 +/- 0.04 Pass SS-5818, 5819 10/14/2015 Cs-137 0.03 +/- 0.02 0.02 +/- 0.01 0.03 +/- 0.01 Pass SS-5818, 5819 10/14/2015 Gr. Beta 8.10 +/- 0.87 8.08 +/- 0.96 8.09 +/- 0.65 Pass SS-5818, 5819 10/14/2015 Pb-212 0.19 +/- 0.03 0.17 +/- 0.02 0.18 +/- 0.02 Pass SS-5818, 5819 10/14/2015 Ra-226 0.47 +/- 0.24 0.45 +/- 0.19 0.46 +/- 0.15 Pass SS-5818, 5819 10/14/2015 Tl-208 0.06 +/- 0.02 0.06 +/- 0.02 0.06 +/- 0.01 Pass DW-60251, 60252 10/15/2015 Ra-226 0.56 +/- 0.12 0.50 +/- 0.08 0.53 +/- 0.07 Pass DW-60251, 60252 10/15/2015 Ra-228 0.79 +/- 0.48 1.16 +/- 0.59 0.98 +/- 0.38 Pass SO-5944, 5945 10/21/2015 Ac-228 1.08 +/- 0.15 1.14 +/- 0.15 1.11 +/- 0.10 Pass SO-5944, 5945 10/21/2015 Bi-214 0.89 +/- 0.08 0.82 +/- 0.06 0.85 +/- 0.05 Pass SO-5944, 5945 10/21/2015 Cs-137 0.06 +/- 0.02 0.08 +/- 0.03 0.07 +/- 0.02 Pass SO-5944, 5945 10/21/2015 Pb-212 1.06 +/- 0.06 0.99 +/- 0.05 1.03 +/- 0.04 Pass SO-5944, 5945 10/21/2015 Pb-214 1.00 +/- 0.09 0.89 +/- 0.06 0.95 +/- 0.05 Pass SO-5944, 5945 10/21/2015 Ra-226 2.13 +/- 0.43 2.16 +/- 0.37 2.14 +/- 0.28 Pass SO-5944, 5945 10/21/2015 Tl-208 0.36 +/- 0.04 0.34 +/- 0.04 0.35 +/- 0.03 Pass S-6175, 6176 10/23/2015 K-40 16.86 +/- 1.92 14.28 +/- 1.66 15.57 +/- 1.27 Pass XWW-6196, 6197 10/26/2015 H-3 2,856 +/- 170 2,815 +/- 169 2,836 +/- 120 Pass SO-6259, 6260 10/28/2015 Ac-228 0.60 +/- 0.10 0.53 +/- 0.08 0.57 +/- 0.07 Pass SO-6259, 6260 10/28/2015 Bi-214 0.40 +/- 0.06 0.50 +/- 0.05 0.45 +/- 0.04 Pass SO-6259, 6260 10/28/2015 Cs-137 0.17 +/- 0.03 0.19 +/- 0.03 0.18 +/- 0.02 Pass SO-6259, 6260 10/28/2015 Gr. Beta 21.6 +/- 1.1 23.36 +/- 1.21 22.48 +/- 0.82 Pass SO-6259, 6260 10/28/2015 Pb-212 0.53 +/- 0.04 0.49 +/- 0.04 0.51 +/- 0.03 Pass SO-6259, 6260 10/28/2015 Tl-208 0.16 +/- 0.03 0.19 +/- 0.04 0.18 +/- 0.02 Pass A5-4

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance LW-6280, 6281 10/29/2015 Gr. Beta 2.03 +/- 0.91 1.97 +/- 0.97 2.00 +/- 0.67 Pass MI-6484, 6485 11/11/2015 K-40 1,384 +/- 82 1,432 +/- 89 1,408 +/- 60 Pass SO-6841, 6842 11/24/2015 Cs-137 0.18 +/- 0.03 0.16 +/- 0.03 0.17 +/- 0.02 Pass SO-6841, 6842 11/24/2015 K-40 13.62 +/- 0.76 13.67 +/- 0.69 13.64 +/- 0.51 Pass WW-6978, 6979 11/30/2015 H-3 569.0 +/- 97.7 480.3 +/- 93.9 524.7 +/- 67.8 Pass SW-6936, 6937 12/10/2015 H-3 151.9 +/- 80.0 176.2 +/- 81.2 164.0 +/- 57.0 Pass SW-7017, 7018 12/10/2015 H-3 584.3 +/- 98.7 451.6 +/- 93.9 518.0 +/- 68.1 Pass LW-7020, 7021 12/10/2015 H-3 236.9 +/- 84.2 285.6 +/- 86.5 261.2 +/- 60.3 Pass AP-7351, 7352 12/29/2015 Be-7 0.099 +/- 0.020 0.084 +/- 0.018 0.091 +/- 0.014 Pass AP-7414, 7415 12/30/2015 Be-7 0.049 +/- 0.013 0.048 +/- 0.011 0.048 +/- 0.008 Pass Note: Duplicate analyses are performed on every twentieth sample received in-house. Results are not listed for those analyses with activities that measure below the LLD.

a Results are reported in units of pCi/L, except for air filters (pCi/Filter or pCi/m3), food products, vegetation, soil, sediment (pCi/g).

A5-5

TABLE A-6. Department of Energy's Mixed Analyte Performance Evaluation Program (MAPEP).

Concentration a Known Control Lab Code b Date Analysis Laboratory result Activity Limits c Acceptance MASO-975 2/1/2015 Ni-63 341 +/- 18 448 314 - 582 Pass MASO-975 2/1/2015 Sr-90 523 +/- 12 653 457 - 849 Pass MASO-975 2/1/2015 Tc-99 614 +/- 12 867 607 - 1,127 Pass MASO-975 2/1/2015 Cs-134 533 +/-6 678 475 - 881 Pass MASO-975 2/1/2015 Cs-137 0.8 +/- 2.5 0.0 NA c Pass MASO-975 2/1/2015 Co-57 0.5 +/- 1.0 0.0 NA c Pass MASO-975 2/1/2015 Co-60 741 +/-8 817 572 - 1,062 Pass MASO-975 2/1/2015 Mn-54 1,153 +/-9 1,198 839 - 1,557 Pass MASO-975 2/1/2015 Zn-65 892 +/- 18 1064 745 - 1,383 Pass MAW-969 2/1/2015 Am-241 0.650 +/- 0.078 0.654 0.458 - 0.850 Pass MAW-969 2/1/2015 Cs-134 21.1 +/- 0.3 23.5 16.5 - 30.6 Pass MAW-969 2/1/2015 Cs-137 19.6 +/- 0.3 19.1 13.4 - 24.8 Pass d

MAW-969 2/1/2015 Co-57 10.2 +/- 0.4 29.9 20.9 - 38.9 Fail MAW-969 2/1/2015 Co-60 0.02 +/- 0.05 0.00 NA c Pass MAW-969 2/1/2015 H-3 569 +/- 13 563 394 - 732 Pass MAW-969 2/1/2015 Fe-55 6.00 +/- 6.60 6.88 4.82 - 8.94 Pass MAW-969 2/1/2015 Mn-54 0.02 +/- 0.07 0.00 NA c Pass MAW-969 2/1/2015 Ni-63 2.9 +/- 3.0 0.00 NA c Pass MAW-969 2/1/2015 Zn-65 16.5 +/- 0.9 18.3 12.8 - 23.8 Pass MAW-969 2/1/2015 Tc-99 3.40 +/- 0.60 3.18 2.23 - 4.13 Pass MAW-969 2/1/2015 Pu-238 0.02 +/- 0.03 0.01 NA e Pass MAW-969 2/1/2015 Pu-239/240 0.81 +/- 0.10 0.83 0.58 - 1.08 Pass MAW-969 2/1/2015 U-233/234 0.150 +/- 0.040 0.148 0.104 - 0.192 Pass MAW-969 2/1/2015 U-238 0.84 +/- 0.09 0.97 0.68 - 1.26 Pass MAW-969 2/1/2015 Sr-90 9.40 +/- 1.30 9.48 6.64 - 12.32 Pass MAW-950 2/1/2015 Gr. Alpha 0.66 +/- 0.05 1.07 0.32 - 1.81 Pass MAW-950 2/1/2015 Gr. Beta 2.72 +/- 0.06 2.79 1.40 - 4.19 Pass MAW-947 2/1/2015 I-129 1.26 +/- 0.12 1.49 1.04 - 1.94 Pass MAAP-978 2/1/2015 Am-241 0.069 +/- 0.200 0.068 0.048 - 0.089 Pass MAAP-978 2/1/2015 Cs-134 1.00 +/- 0.04 1.15 0.81 - 1.50 Pass MAAP-978 2/1/2015 Cs-137 0.004 +/- 0.023 0.00 NA c Pass f

MAAP-978 2/1/2015 Co-57 0.04 +/- 0.04 1.51 1.06 - 1.96 Fail MAAP-978 2/1/2015 Co-60 0.01 +/- 0.02 0.00 NA c Pass MAAP-978 2/1/2015 Mn-54 1.11 +/- 0.08 1.02 0.71 - 1.33 Pass MAAP-978 2/1/2015 Zn-65 0.83 +/- 0.10 0.83 0.58 - 1.08 Pass MAAP-978 2/1/2015 Pu-238 -0.003 +/- 0.010 0.000 NA c Pass MAAP-978 2/1/2015 Pu-239/240 0.090 +/- 0.022 0.085 0.059 - 0.110 Pass MAAP-978 2/1/2015 U-233/234 0.020 +/- 0.010 0.016 0.011 - 0.020 Pass MAAP-978 2/1/2015 U-238 0.073 +/- 0.018 0.099 0.069 - 0.129 Pass A6-1

TABLE A-6. Department of Energy's Mixed Analyte Performance Evaluation Program (MAPEP).

Concentration a Known Control Lab Code b Date Analysis Laboratory result Activity Limits c Acceptance MAAP-981 2/1/2015 Sr-89 38.1 +/- 1.0 47.5 33.3 - 61.8 Pass MAAP-981 2/1/2015 Sr-90 1.22 +/- 0.13 1.06 0.74 - 1.38 Pass MAAP-984 2/1/2015 Gr. Alpha 0.59 +/- 0.06 1.77 0.53 - 3.01 Pass MAAP-984 2/1/2015 Gr. Beta 0.95 +/- 0.07 0.75 0.38 - 1.13 Pass MAVE-972 2/1/2015 Cs-134 6.98 +/- 0.13 7.32 5.12 - 9.52 Pass MAVE-972 2/1/2015 Cs-137 9.73 +/- 0.21 9.18 6.43 - 11.93 Pass MAVE-972 2/1/2015 Co-57 0.01 +/- 0.04 0.00 NA c Pass MAVE-972 2/1/2015 Co-60 3.89 +/- 0.20 5.55 3.89 - 7.22 Pass MAVE-972 2/1/2015 Mn-54 0.04 +/- 0.07 0.00 NA c Pass MAVE-972 2/1/2015 Zn-65 0.09 +/- 0.12 0.00 NA c Pass MAAP-978 2/1/2015 Pu-238 -0.003 +/- 0.010 0.000 NA c Pass MAAP-978 2/1/2015 Pu-239/240 0.090 +/- 0.022 0.085 0.059 - 0.110 Pass MAAP-978 2/1/2015 U-233/234 0.020 +/- 0.010 0.016 0.011 - 0.020 Pass MAAP-978 2/1/2015 U-238 0.073 +/- 0.018 0.099 0.069 - 0.129 Pass MAAP-981 2/1/2015 Sr-89 38.1 +/- 1.0 47.5 33.3 - 61.8 Pass MAAP-981 2/1/2015 Sr-90 1.22 +/- 0.13 1.06 0.74 - 1.38 Pass MAAP-984 2/1/2015 Gr. Alpha 0.59 +/- 0.06 1.77 0.53 - 3.01 Pass MAAP-984 2/1/2015 Gr. Beta 0.95 +/- 0.07 0.75 0.38 - 1.13 Pass MAVE-972 2/1/2015 Cs-134 6.98 +/- 0.13 7.32 5.12 - 9.52 Pass MAVE-972 2/1/2015 Cs-137 9.73 +/- 0.21 9.18 6.43 - 11.93 Pass MAVE-972 2/1/2015 Co-57 0.01 +/- 0.04 0.00 NA c Pass MAVE-972 2/1/2015 Co-60 3.89 +/- 0.20 5.55 3.89 - 7.22 Pass MAVE-972 2/1/2015 Mn-54 0.04 +/- 0.07 0.00 NA c Pass MAVE-972 2/1/2015 Zn-65 0.09 +/- 0.12 0.00 NA c Pass MASO-4903 8/1/2015 Ni-63 556 +/- 18 682 477 - 887 Pass MASO-4903 g 8/1/2015 Sr-90 231 +/-7 425 298 - 553 Fail MASO-4903 g 8/1/2015 Sr-90 352 +/- 10 425 298 - 553 Pass MASO-4903 h 8/1/2015 Tc-99 411 +/- 11 631 442 - 820 Fail MASO-4903 8/1/2015 Cs-134 833 +/- 10 1,010 707 - 1,313 Pass MASO-4903 8/1/2015 Cs-137 808 +/- 11 809.00 566 - 1,052 Pass MASO-4903 8/1/2015 Co-57 1,052 +/- 10 1,180 826 - 1,534 Pass MASO-4903 8/1/2015 Co-60 2 +/-2 1.3 NA e Pass MASO-4903 8/1/2015 Mn-54 1,331 +/- 13 1,340 938 - 1,742 Pass MASO-4903 8/1/2015 Zn-65 686 +/- 15 662 463 - 861 Pass A6-2

TABLE A-6. Department of Energy's Mixed Analyte Performance Evaluation Program (MAPEP).

Concentration a Known Control Lab Code b Date Analysis Laboratory result Activity Limits c Acceptance MAW-5007 8/1/2015 Cs-134 16.7 +/- 0.4 23.1 16.2 - 30.0 Pass MAW-5007 8/1/2015 Cs-137 -0.4 +/- 0.1 0.0 NA c Pass MAW-5007 8/1/2015 Co-57 21.8 +/- 0.4 20.8 14.6 - 27.0 Pass MAW-5007 8/1/2015 Co-60 17.3 +/- 0.3 17.1 12.0 - 22.2 Pass MAW-5007 8/1/2015 H-3 227.5 +/- 8.9 216.0 151.0 - 281.0 Pass MAW-5007 i 8/1/2015 Fe-55 4.2 +/- 14.1 13.1 9.2 - 17.0 Fail MAW-5007 8/1/2015 Mn-54 16.6 +/- 0.5 15.6 10.9 - 20.3 Pass MAW-5007 8/1/2015 Ni-63 9.1 +/- 2.6 8.6 6.0 - 11.1 Pass MAW-5007 8/1/2015 Zn-65 15.5 +/- 0.9 13.9 9.7 - 18.1 Pass MAW-5007 8/1/2015 Tc-99 6.80 +/- 0.60 7.19 5.03 - 9.35 Pass MAW-5007 8/1/2015 Sr-90 4.80 +/- 0.50 4.80 3.36 - 6.24 Pass MAW-5007 8/1/2015 Gr. Alpha 0.41 +/- 0.04 0.43 0.13 - 0.73 Pass MAW-5007 8/1/2015 Gr. Beta 3.45 +/- 0.07 3.52 1.76 - 5.28 Pass MAW-5007 8/1/2015 I-129 1.42 +/- 0.13 1.49 1.04 - 1.94 Pass MAAP-4911 8/1/2015 Sr-89 3.55 +/- 0.67 3.98 2.79 - 5.17 Pass MAAP-4911 8/1/2015 Sr-90 0.94 +/- 0.16 1.05 0.74 - 1.37 Pass MAAP-4907 8/1/2015 Gr. Alpha 0.30 +/- 0.04 0.90 0.27 - 1.53 Pass MAAP-4907 8/1/2015 Gr. Beta 1.85 +/- 0.09 1.56 0.78 - 2.34 Pass MAVE-4901 8/1/2015 Cs-134 5.56 +/- 0.16 5.80 4.06 - 7.54 Pass MAVE-4901 8/1/2015 Cs-137 -0.02 +/- 0.06 0.00 NA c Pass MAVE-4901 8/1/2015 Co-57 7.74 +/- 0.18 6.62 4.63 - 8.61 Pass MAVE-4901 8/1/2015 Co-60 4.84 +/- 0.15 4.56 3.19 - 5.93 Pass MAVE-4901 8/1/2015 Mn-54 8.25 +/- 0.25 7.68 5.38 - 9.98 Pass MAVE-4901 8/1/2015 Zn-65 5.78 +/- 0.29 5.46 3.82 - 7.10 Pass a

Results are reported in units of Bq/kg (soil), Bq/L (water) or Bq/total sample (filters, vegetation).

b Laboratory codes as follows: MAW (water), MAAP (air filter), MASO (soil), MAVE (vegetation).

c MAPEP results are presented as the known values and expected laboratory precision (1 sigma, 1 determination) and control limits as defined by the MAPEP. A known value of "zero" indicates an analysis was included in the testing series as a "false positive". MAPEP does not provide control limits.

d Lab result was 27.84. Data entry error resulted in a non-acceptable result.

e Provided in the series for "sensitivity evaluation". MAPEP does not provide control limits.

f Lab result was 1.58. Data entry error resulted in a non-acceptable result.

g The incomplete separation of calcium from strontium caused a failed low result. The result of reanalysis acceptable.

h The complex sample matrix is interfering with yield calculations causing a failed low result. An investigation is in process to determine a more reliable yield determination.

I The known activity was below the routine laboratory detection limits for the available aliquot fraction.

A6-3

TABLE A-7. Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA)a.

Concentration (pCi/L) b b

Lab Code Date Analysis Laboratory ERA Control Result c Result d Limits Acceptance ERAP-1091 3/16/2015 Am-241 46.8 +/- 2.2 49.8 30.7 - 67.4 Pass ERAP-1091 3/16/2015 Co-60 85.1 +/- 2.9 79.1 61.2 - 98.8 Pass ERAP-1091 3/16/2015 Cs-134 825.6 +/- 34.7 909.0 578.0 - 1,130.0 Pass ERAP-1091 3/16/2015 Cs-137 1,312 +/- 12 1,170 879 - 1,540 Pass ERAP-1091 3/16/2015 Fe-55 760.6 +/- 48.2 836.0 259.0 - 1630.0 Pass ERAP-1091 3/16/2015 Mn-54 <2.7 <50 0.0 - 50.0 Pass ERAP-1091 3/16/2015 Pu-238 51.0 +/- 3.9 52.1 35.7 - 68.5 Pass ERAP-1091 3/16/2015 Pu-239/240 38.3 +/- 1.3 40.3 29.20 - 52.70 Pass ERAP-1091 3/16/2015 Sr-90 95.3 +/- 11.4 96.6 47.2 - 145.0 Pass ERAP-1091 3/16/2015 U-233/234 29.0 +/- 1.2 34.3 21.3 - 51.7 Pass ERAP-1091 3/16/2015 U-238 31.0 +/- 1.1 34.0 22.0 - 47.0 Pass ERAP-1091 3/16/2015 Zn-65 1099.3 +/- 146.5 986.0 706.0 - 1360.0 Pass ERAP-1094 3/16/2015 Gr. Alpha 73.7 +/- 0.7 62.2 20.8 - 96.6 Pass ERAP-1094 3/16/2015 Gr. Beta 69.6 +/- 0.8 58.4 36.9 - 85.1 Pass ERSO-1098 3/16/2015 Am-241 1571.8 +/- 209.6 1,500 878 - 1,950 Pass ERSO-1098 3/16/2015 Ac-228 1198.8 +/- 140.4 1,250 802 - 1,730 Pass ERSO-1098 3/16/2015 Bi-212 1420.1 +/- 455.7 1,780 474 - 2,620 Pass ERSO-1098 3/16/2015 Bi-214 3466.9 +/- 86.9 4,430 2,670 - 6,380 Pass ERSO-1098 3/16/2015 Co-60 1779.8 +/- 41.0 1,880 1,270 - 2,590 Pass ERSO-1098 3/16/2015 Cs-134 5204.6 +/- 64.5 6,390 4,180 - 7,680 Pass ERSO-1098 3/16/2015 Cs-137 1417.1 +/- 41.9 1,490 1,140 - 1,920 Pass ERSO-1098 3/16/2015 K-40 10,597 +/- 380 10,700 7,810 - 14,400 Pass ERSO-1098 3/16/2015 Mn-54 <62.2 < 1000 0.0 - 1,000 Pass ERSO-1098 3/16/2015 Pb-212 1,032 +/- 41 1,230 806 - 1,710 Pass ERSO-1098 3/16/2015 Pb-214 3,629 +/- 93 4,530 2,640 - 6,760 Pass ERSO-1098 3/16/2015 Pu-238 942.9 +/- 128.8 998.0 600.0 - 1,380.0 Pass ERSO-1098 3/16/2015 Pu-239/240 1,185 +/- 140 1,210 791 - 1,670 Pass ERSO-1098 3/16/2015 Sr-90 1,724 +/- 125 1,940 740 - 3,060 Pass ERSO-1098 3/16/2015 Th-234 3,666 +/- 948 3,890 1,230 - 7,320 Pass ERSO-1098 3/16/2015 U-233/234 3,474 +/- 226 3,920 2,400 - 5,020 Pass ERSO-1098 3/16/2015 U-238 3,620 +/- 232 3,890 2,410 - 4,930 Pass ERSO-1098 3/16/2015 Zn-65 7,362 +/- 145 7,130 5,680 - 9,470 Pass ERW-1095 3/16/2015 Gr. Alpha 93.4 +/- 11.5 119.0 42.2 - 184.0 Pass ERW-1095 3/16/2015 Gr. Beta 145.2 +/- 4.8 158.0 90.5 - 234.0 Pass ERW-1110 3/16/2015 H-3 10,573 +/- 78 10,300 6,900 - 14,700 Pass ERVE-1100 3/16/2015 Am-241 4,537 +/- 266 4,340 2,650 - 5,770 Pass ERVE-1100 3/16/2015 Cm-244 1,338 +/- 146 1,360 666 - 2,120 Pass A7-1

TABLE A-7. Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA)a.

Concentration (pCi/L) b b

Lab Code Date Analysis Laboratory ERA Control Result c Result d Limits Acceptance ERVE-1100 e 3/16/2015 Co-60 1,030 +/- 29 1,540 1,060 - 2,150 Fail ERVE-1100 f 3/16/2015 Co-60 1,684 +/- 48 1,540 1,060 - 2,150 Pass ERVE-1100 e 3/16/2015 Cs-134 1,615 +/- 27 2,650 1,700 - 3,440 Fail ERVE-1100 f 3/16/2015 Cs-134 2,554 +/- 49 2,650 1,700 - 3,440 Pass ERVE-1100 e 3/16/2015 Cs-137 1,248 +/- 29 1,810 1,310 - 2,520 Fail ERVE-1100 f 3/16/2015 Cs-137 2,078 +/- 68 1,810 1,310 - 2,520 Pass ERVE-1100 e 3/16/2015 K-40 22,037 +/- 463 30,900 22,300 - 43,400 Fail ERVE-1100 f 3/16/2015 K-40 34,895 +/- 764 30,900 22,300 - 43,400 Pass ERVE-1100 e 3/16/2015 Mn-54 <13.8 <300 0.0 - 300.0 Pass ERVE-1100 f 3/16/2015 Mn-54 <24.4 <300 0.0 - 300.0 Pass ERVE-1100 3/16/2015 Pu-238 3,232 +/- 232 3,680 2,190 - 5,040 Pass ERVE-1100 3/16/2015 Pu-239/240 3,606 +/- 240 4,180 2,570 - 5,760 Pass ERVE-1100 3/16/2015 Sr-90 6,023 +/- 326 6,590 3,760 - 8,740 Pass ERVE-1100 3/16/2015 U-233/234 2,653 +/- 153 3,150 2,070 - 4,050 Pass ERVE-1100 3/16/2015 U-238 2,717 +/- 163 3,130 2,090 - 3,980 Pass ERVE-1100 e 3/16/2015 Zn-65 <94.6 1,090 786 - 1,530 Fail ERVE-1100 f 3/16/2015 Zn-65 1,306 +/- 75 1,090 786 - 1,530 Pass ERW-1103 3/16/2015 Am-241 47.1 +/- 4.0 46.0 31.0 - 61.7 Pass ERW-1103 3/16/2015 Co-60 1,217 +/- 17 1,250 1,090 - 1,460 Pass ERW-1103 3/16/2015 Cs-134 1,121 +/- 18 1,260 925 - 1,450 Pass ERW-1103 3/16/2015 Cs-137 1,332 +/- 31 1,360 1,150 - 1,630 Pass ERW-1103 3/16/2015 Mn-54 <3.7 <100 0.00 - 100.00 Pass ERW-1103 3/16/2015 Pu-238 54.5 +/- 1.6 72.4 53.6 - 90.1 Pass ERW-1103 g 3/16/2015 Pu-239/240 140.2 +/- 7.8 184.0 143.0 - 232.0 Fail ERW-3742 h 9/27/2012 Pu-239/240 89.3 +/- 4.9 97.7 66.6 - 108.0 Pass ERW-1103 3/16/2015 U-233/234 56.5 +/- 6.4 61.8 46.4 - 79.7 Pass ERW-1103 3/16/2015 U-238 58.4 +/- 5.8 61.3 46.7 - 75.2 Pass ERW-1103 3/16/2015 Zn-65 1,191 +/- 136 1,180 984 - 1,490 Pass ERW-1103 3/16/2015 Fe-55 1,149 +/- 144 1,070 638 - 1,450 Pass ERW-1103 3/16/2015 Sr-90 860.0 +/- 37.0 912.0 594.0 - 1,210.0 Pass a

Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the crosscheck program for proficiency testing administered by Environmental Resources Associates, serving as a replacement for studies conducted previously by the Environmental Measurements Laboratory Quality Assessment Program (EML).

b Laboratory codes as follows: ERW (water), ERAP (air filter), ERSO (soil), ERVE (vegetation). Results are reported in units of pCi/L, except for air filters (pCi/Filter), vegetation and soil (pCi/kg).

c Unless otherwise indicated, the laboratory result is given as the mean +/- standard deviation for three determinations.

d Results are presented as the known values, expected laboratory precision (1 sigma, 1 determination) and control limits as provided by ERA. A known value of "zero" indicates an analysis was included in the testing series as a "false positive". Control limits are not provided.

e Technician error weighing sample caused submitted gamma results to be understated and outside the control limits.(low) f The result of reanalysis with the correct sample volume (Compare to original result, footnoted "e" above).

g The results of reanalysis were outside the control limits (low).

h Sample ERW-3742 was ordered from ERA to determine why ERW-1103 results for Pu-239 were outside the acceptable range.

The results for ERW-3742 were acceptable. No reason for the unacceptable results for ERW-3742 was determined.

A7-2

APPENDIX B. DATA REPORTING CONVENTIONS Data Reporting Conventions 1.0. All activities, except gross alpha and gross beta, are decay corrected to collection time or the end of the collection period.

2.0. Single Measurements Each single measurement is reported as follows: x+/-s where: x = value of the measurement; s = 2s counting uncertainty (corresponding to the 95% confidence level).

In cases where the activity is less than the lower limit of detection L, it is reported as: < L, where L = the lower limit of detection based on 4.66s uncertainty for a background sample.

3.0. Duplicate analyses If duplicate analyses are reported, the convention is as follows. :

3.1 Individual results: For two analysis results; x 1 +/- s 1 and x 2 +/- s 2 Reported result: x +/- s; where x = (1/2) (x 1 + x 2 ) and s = (1/2) s12 + s 22 3.2. Individual results: < L1 , < L2 Reported result: < L, where L = lower of L 1 and L 2 3.3. Individual results: x +/- s, < L Reported result: x +/- s if x L; < L otherwise.

4.0. Computation of Averages and Standard Deviations 4.1 Averages and standard deviations listed in the tables are computed from all of the individual measurements over the period averaged; for example, an annual standard deviation would not be the average of quarterly standard deviations. The average and standard deviation s of a set of n numbers x 1 , x 2 . . . x n are defined as follows:

1 (x- )2

=n x s= n-1 4.2 Values below the highest lower limit of detection are not included in the average.

4.3 If all values in the averaging group are less than the highest LLD, the highest LLD is reported.

4.4 If all but one of the values are less than the highest LLD, the single value x and associated two sigma error is reported.

4.5 In rounding off, the following rules are followed:

4.5.1. If the number following those to be retained is less than 5, the number is dropped, and the retained numbers are kept unchanged. As an example, 11.443 is rounded off to 11.44.

4.5.2. If the number following those to be retained is equal to or greater than 5, the number is dropped and the last retained number is raised by 1. As an example, 11.445 is rounded off to 11.45.

B-1

Appendix C. NON-RADIOLOGICAL MONITORING PROGRAM 1.0. Introduction Union Electric Company Callaway Plant, d.b.a. Ameren Missouri Callaway Energy Center, in accordance with federal regulations and a desire to maintain the quality of the local environment around Callaway Plant has implemented an Environmental Protection Plan, (EPP) contained in Appendix B of the Callaway Plant Operating License.

The objective of the EPP is to provide for protection of non-radiological environmental values during operation of the Callaway Plant.

This report describes the conduct of the EPP for the Callaway Plant during 2015.

2.0. Unusual or Important Events No unusual or important events reportable under the EPP Section 4.1 were identified during 2015.

3.0. EPP Non-compliances During 2015, there were no non-compliances with the EPP.

4.0. Nonroutine Reports There were no nonroutine reports submitted in accordance with the EPP, Section 5.4.2 in 2015.

C-1

5.0. Plant Design and Operation Environmental Evaluations.

This section lists all changes in the plant design, operation, tests or experiments installed during 2015, which could have involved a potentially significant unreviewed environmental question in accordance with section 3.1 of Appendix B.

During 2015, three plant changes could have involved a potentially significant unreviewed environmental question. The interpretations and conclusions regarding these plant changes along with a description of the change and activity are presented below.

MP 13-0031, MP 14-0015, MP 14-0016, MP 14-0017 (Rev 2) - Permanent Storage of Major Equipment in the Hardened Storage Facility for Emergency Response Description of Change:

Modifications MP 13-0031, MP 14-0015, MP 14-0016, and MP 14-0017 include permanent storage of emergency response equipment in the hardened storage facility at Callaway Energy Center. This evaluation includes a review of the requirements for storage and operation of major equipment to be permanently stored in this facility to respond to a beyond design basis external event (BDBEE) accident.

Major equipment to be stored in the hardened storage facility includes:

1) 2 - portable emergency generators - Caterpillar 500KWe, trailer mounted with a double walled 600 gallon fuel tank

2) 2 - John Deere Model 4045 portable diesel driven pumps, each with a 100 gallon dual walled fuel tank

3) 2 - John Deere Model 6090 portable diesel driven pumps, each with a 245 gallon dual walled fuel tank

4) 1 - Refueling trailer to contain a maximum volume of 1500 gallons diesel fuel

5) 1 - 300 Series Transformer (XPG322) containing 261 gallons of non-PCB mineral oil to be located between the hardened storage facility and the ISFSI support building Evaluation of Change:

As part of the Final Environmental Evaluation, both the ER and FES-OL were reviewed for any previously evaluated adverse environmental impacts and any new adverse environmental impacts not previously evaluated. No adverse environmental impacts were identified. The construction of this facility was evaluated in a separate final environmental evaluation reported in the 2014 report. Because this equipment is to be permanently stored in this facility, an application for an air construction permit was submitted under the Part 70 air program.

Approval was granted from the Missouri Department of Natural Resources Air Program to C-2

permanently house this equipment on March 23, 2015 indicating no construction permit is required. This change does not involve an un-reviewed environmental question. Therefore, NRC approval is not required for this portion of the construction project.

MP 14-0012 - Construction of two additional Water Treatment Plant Sedimentation Lagoons #5 & #6 Description of Change:

MP 14-0012 covers the construction of two additional sedimentation lagoons to store Missouri River solids removed by the water treatment plant. There are currently 2 sedimentation lagoons in service (lagoon #3 & #4) along with 2 wetlands (lagoon #1 & #2) for polishing the sewage treatment effluent from the outlet of a three-cell sewage stabilization pond system. The current sedimentation lagoons are approaching design capacity. The new lagoons will occupy an area adjacent to existing lagoons #3 & #4, measuring approximately 1200 feet by 600 feet and with the bottom elevations near 820 feet. Effluent from the lagoons will tie into the existing piping, utilize the current NPDES outfall (Outfall 003), and will be recycled back to the head of the water treatment plant as it has for more than 16 years.

Evaluation of Change:

As part of the Final Environmental Evaluation, both the ER and FES-OL were reviewed for any previously evaluated adverse environmental impacts and any new adverse environmental impacts not previously evaluated. No adverse environmental impacts were identified. Because the new sedimentation lagoons are water treatment devices as well as being earthen basins, a construction permit was required by the Missouri Department of Natural Resources Water Program prior to beginning construction. Construction Permit # CP0001707 was obtained on June 3, 2015. In addition, a land disturbance permit was obtained as greater than one acre was disturbed during this construction. The construction area for the new sedimentation lagoons is located on Callaway plant property and was previously evaluated for cultural resources with no cultural resources identified. During construction, storm water runoff from this area was controlled using Best Management Practices (BMPs) to minimize sediment runoff.

This change does not involve an un-reviewed environmental question and NRC approval was not required.

RFR 201408691 - Use of BULAB 8031 as a Dispersant in the Circulating/Service Water, Essential Service Water (ESW), and Fire Water Systems Description of Change:

This change involves the use of BULAB 8031 as a dispersant for the circulating/service water system, essential service water system and fire water system as BULAB 8006 (used in the past) is being discontinued and is no longer available.

C-3

Evaluation of Change:

As part of the Final Environmental Evaluation, both the ER and FES-OL were reviewed for any previously evaluated adverse environmental impacts and any new adverse environmental impacts not previously evaluated. No adverse environmental impacts were identified. Missouri DNR approval or permits were not required as a similar dispersant (BULAB 8006) was previously used in these systems. Both products contain the same biopenetrant DMAD which will be maintained at the same concentration. BULAB 8031 contains a slightly different anionic surfactant. Aquatic toxicity data was reviewed for both BULAB products and both products indicated a similar 48-hour LC50. Both products have been previously reviewed and approved by the Missouri DNR for use at Callaway and there intended use in these systems should have no adverse effect on the environment.

This evaluation concluded that this change to utilize BULAB 8031 as a dispersant in these systems does not involve an un-reviewed environmental question and NRC approval was not required.

C-4

APPENDIX D Sampling Location Maps D-1

Figure D-1. Radiological Environmental Sampling Locations 1, 2, 3, mile radius from site location.

D-2

Figure D-2. Radiological Environmental Sampling Locations 3, 4, 5, 6 mile radius from site location.

D-3

Figure D-3. Radiological Environmental Sampling Locations 5, 10, 15 mile radius from site location.

D-4

Figure D-4a. Groundwater Monitoring Wells, Owner Controlled Area and Vicinity.

Note: Not all wells shown are included in the REMP. Refer to Table 5.1 for a listing of monitored wells.

D-5

Figure D-4b. Groundwater Monitoring Wells, Northern Area.

D-6

Figure D-4c. Groundwater Monitoring Wells, Central Area.

D-7

Figure D-4d. Groundwater Monitoring Wells, Alluvial Area.

D-8

AMEREN MISSOURI CALLAWAY ENERGY CENTER FULTON, MISSOURI Docket Numbers 50-483 and 72-1045 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT to THE UNITED STATES NUCLEAR REGULATORY COMMISSION Part II January 1 to December 31, 2015 Prepared by ENVIRONMENTAL, Inc.

Midwest Laboratory and Ameren Missouri Callaway Energy Center Submitted by UNION ELECTRIC CO.

dba Ameren Missouri Project No. 8036

TABLE OF CONTENTS Section Page List of Tables ............................................................................................................... iii 1.0 Introduction................................................................................................................... iv 2.0 Data Tables ................................................................................................................... v ii

LIST OF TABLES No. Title Page 1 Airborne particulates and charcoal cartridges, analysis for gamma-emitting isotopes, and iodine-131 ....................................................................................... 1-1 2 Milk, analysis for iodine-131 and gamma emitting isotopes................................................ 2-1 3 Vegetation, analysis for iodine-131 and gamma emitting isotopes ..................................... 3-1 4 Non-food Crops, analysis for tritium and gamma emitting isotopes.................................... 4-1 5 Soil, analysis for gamma-emitting isotopes......................................................................... 5-1 6 Surface water, analysis for tritium and gamma-emitting isotopes....................................... 6-1 7 Surface water (Ponds), analysis for tritium and gamma-emitting isotopes ......................... 7-1 8 Drinking water, analysis for tritium and gamma-emitting isotopes ...................................... 8-1 9 Wells (non-potable water), analysis for tritium and gamma-emitting isotopes .................... 9-1 10 Sediment 10a. Bottom sediment, analysis for gamma-emitting isotopes .................................................. 10-1 10b. Shoreline sediment, analysis for gamma-emitting isotopes .............................................. 10-2 11 Fish, analysis for gamma-emitting isotopes ...................................................................... 11-1 12 Direct Radiation 12a. Gamma dose .................................................................................................................... 12-1 12b. Neutron dose .................................................................................................................... 12-2 iii

1.0 INTRODUCTION

The following constitutes a supplement to the Annual Report for the Radiological Environmental Monitoring Program conducted at the Ameren Missouri, Callaway Energy Center, Fulton, Missouri in 2015. Results of completed analyses are presented in the attached tables.

For information regarding sampling locations, type and frequency of collection, and sample codes, refer to Part I, Tables 5.1 - 5.2 and Figures 5.1 through 5.8.

Analyses results from additional sampling may be found in Appendix A.

iv

2.0 DATA TABLES v

Table 1. Air particulates and charcoal cartridges, analyses for gamma-emitting isotopes and I-131 a.

Collection: Continuous, weekly exchange.

Units: pCi/m3 Location CA-A-001 7 58 60 95 134 137 140 144 Be Co Co Zr Cs Cs BaLa Ce Required LLDs - - - - 0.050 0.060 - -

Date Collected Vol.

01-08-15 349 0.13 +/- 0.08 < 0.004 < 0.006 < 0.009 < 0.006 < 0.005 < 0.009 < 0.024 01-15-15 311 0.17 +/- 0.09 < 0.008 < 0.006 < 0.009 < 0.007 < 0.006 < 0.008 < 0.032 01-22-15 318 < 0.07 < 0.004 < 0.006 < 0.009 < 0.008 < 0.006 < 0.005 < 0.033 01-29-15 302 < 0.06 < 0.004 < 0.006 < 0.011 < 0.008 < 0.005 < 0.006 < 0.030 02-05-15 297 0.18 +/- 0.11 < 0.006 < 0.007 < 0.012 < 0.006 < 0.004 < 0.011 < 0.025 02-12-15 295 0.15 +/- 0.08 < 0.005 < 0.007 < 0.011 < 0.008 < 0.005 < 0.009 < 0.038 02-19-15 283 < 0.07 < 0.006 < 0.005 < 0.017 < 0.008 < 0.010 < 0.011 < 0.045 02-26-15 294 0.20 +/- 0.08 < 0.005 < 0.007 < 0.011 < 0.008 < 0.007 < 0.007 < 0.041 03-05-15 298 < 0.08 < 0.004 < 0.003 < 0.010 < 0.007 < 0.007 < 0.005 < 0.047 03-12-15 306 0.25 +/- 0.12 < 0.006 < 0.003 < 0.008 < 0.007 < 0.005 < 0.014 < 0.042 03-19-15 307 0.20 +/- 0.09 < 0.005 < 0.007 < 0.010 < 0.009 < 0.004 < 0.006 < 0.038 03-26-15 307 < 0.09 < 0.007 < 0.008 < 0.007 < 0.007 < 0.006 < 0.008 < 0.039 04-02-15 304 < 0.11 < 0.008 < 0.006 < 0.012 < 0.008 < 0.009 < 0.021 < 0.047 04-09-15 305 < 0.11 < 0.006 < 0.007 < 0.009 < 0.008 < 0.006 < 0.016 < 0.048 04-16-15 306 < 0.13 < 0.008 < 0.007 < 0.010 < 0.009 < 0.006 < 0.038 < 0.028 04-23-15 302 < 0.10 < 0.008 < 0.007 < 0.007 < 0.006 < 0.007 < 0.012 < 0.048 04-30-15 308 < 0.10 < 0.011 < 0.011 < 0.014 < 0.014 < 0.007 < 0.048 < 0.056 05-07-15 310 0.24 +/- 0.11 < 0.004 < 0.007 < 0.007 < 0.008 < 0.007 < 0.011 < 0.039 05-14-15 272 0.22 +/- 0.11 < 0.011 < 0.011 < 0.020 < 0.011 < 0.010 < 0.043 < 0.041 05-21-15 271 < 0.13 < 0.006 < 0.009 < 0.019 < 0.009 < 0.011 < 0.038 < 0.043 05-28-15 269 < 0.11 < 0.007 < 0.008 < 0.010 < 0.011 < 0.009 < 0.014 < 0.039 06-04-15 272 < 0.13 < 0.006 < 0.006 < 0.012 < 0.010 < 0.009 < 0.024 < 0.042 06-11-15 264 < 0.14 < 0.010 < 0.006 < 0.013 < 0.008 < 0.010 < 0.028 < 0.040 06-18-15 266 < 0.12 < 0.005 < 0.008 < 0.016 < 0.011 < 0.010 < 0.014 < 0.062 06-25-15 261 < 0.09 < 0.007 < 0.005 < 0.009 < 0.009 < 0.005 < 0.023 < 0.034 07-02-15 263 0.13 +/- 0.08 < 0.005 < 0.005 < 0.009 < 0.008 < 0.008 < 0.010 < 0.043 07-09-15 258 < 0.13 < 0.006 < 0.005 < 0.012 < 0.010 < 0.005 < 0.013 < 0.053 07-16-15 259 < 0.12 < 0.009 < 0.008 < 0.020 < 0.010 < 0.010 < 0.013 < 0.048 07-23-15 260 0.25 +/- 0.14 < 0.009 < 0.010 < 0.020 < 0.010 < 0.006 < 0.015 < 0.064 07-30-15 256 < 0.11 < 0.009 < 0.010 < 0.020 < 0.011 < 0.010 < 0.017 < 0.052 08-06-15 257 0.15 +/- 0.09 < 0.006 < 0.008 < 0.008 < 0.009 < 0.010 < 0.014 < 0.041 08-13-15 257 < 0.12 < 0.013 < 0.010 < 0.020 < 0.012 < 0.007 < 0.012 < 0.059 08-20-15 273 < 0.12 < 0.011 < 0.006 < 0.014 < 0.010 < 0.009 < 0.013 < 0.049 08-27-15 305 < 0.11 < 0.005 < 0.007 < 0.013 < 0.007 < 0.006 < 0.011 < 0.045 09-03-15 330 0.25 +/- 0.09 < 0.009 < 0.006 < 0.017 < 0.007 < 0.006 < 0.012 < 0.044 09-10-15 273 0.27 +/- 0.12 < 0.005 < 0.006 < 0.013 < 0.009 < 0.010 < 0.008 < 0.050 09-17-15 276 < 0.10 < 0.009 < 0.007 < 0.013 < 0.008 < 0.011 < 0.013 < 0.037 09-24-15 284 < 0.11 < 0.008 < 0.005 < 0.012 < 0.009 < 0.009 < 0.016 < 0.050 10-01-15 285 < 0.10 < 0.008 < 0.005 < 0.013 < 0.011 < 0.010 < 0.022 < 0.032 a

Iodine-131 concentrations are < 0.07 pCi/m 3 unless noted otherwise.

1-1

Table 1. Air particulates and charcoal cartridges, analyses for gamma-emitting isotopes and I-131 a.

Collection: Continuous, weekly exchange.

Units: pCi/m3 Location CA-A-001 (cont.)

7 58 60 95 134 137 140 144 Be Co Co Zr Cs Cs BaLa Ce Required LLDs - - - - 0.050 0.060 - -

Date Collected Vol.

10-08-15 290 < 0.13 < 0.007 < 0.009 < 0.019 < 0.010 < 0.007 < 0.022 < 0.043 10-15-15 290 < 0.17 < 0.014 < 0.010 < 0.026 < 0.016 < 0.012 < 0.055 < 0.055 10-22-15 296 < 0.13 < 0.007 < 0.006 < 0.018 < 0.009 < 0.009 < 0.015 < 0.042 10-29-15 296 < 0.14 < 0.010 < 0.006 < 0.012 < 0.009 < 0.010 < 0.018 < 0.047 11-05-15 304 < 0.07 < 0.009 < 0.006 < 0.014 < 0.008 < 0.011 < 0.028 < 0.046 11-12-15 293 < 0.10 < 0.009 < 0.008 < 0.014 < 0.008 < 0.008 < 0.012 < 0.043 11-19-15 299 < 0.09 < 0.008 < 0.007 < 0.017 < 0.008 < 0.011 < 0.016 < 0.045 11-25-15 250 < 0.12 < 0.010 < 0.007 < 0.016 < 0.010 < 0.006 < 0.021 < 0.038 12-03-15 338 < 0.08 < 0.008 < 0.004 < 0.012 < 0.009 < 0.007 < 0.013 < 0.049 12-10-15 300 < 0.10 < 0.007 < 0.007 < 0.009 < 0.008 < 0.005 < 0.011 < 0.039 12-17-15 298 < 0.11 < 0.007 < 0.003 < 0.013 < 0.008 < 0.007 < 0.019 < 0.038 12-23-15 253 < 0.11 < 0.007 < 0.008 < 0.014 < 0.009 < 0.008 < 0.028 < 0.034 12-31-15 335 < 0.07 < 0.005 < 0.005 < 0.009 < 0.006 < 0.007 < 0.017 < 0.029 a

Iodine-131 concentrations are < 0.07 pCi/m 3 unless noted otherwise.

1-2

Table 1. Air particulates and charcoal cartridges, analyses for gamma-emitting isotopes and I-131 a.

Collection: Continuous, weekly exchange.

Units: pCi/m3 Location CA-A-007 7 58 60 95 134 137 140 144 Be Co Co Zr Cs Cs BaLa Ce Required LLDs - - - - 0.050 0.060 - -

Date Collected Vol.

01-08-15 307 < 0.11 < 0.004 < 0.003 < 0.013 < 0.009 < 0.007 < 0.012 < 0.049 01-15-15 270 0.16 +/- 0.09 < 0.007 < 0.007 < 0.012 < 0.007 < 0.004 < 0.009 < 0.033 01-22-15 276 < 0.08 < 0.005 < 0.007 < 0.012 < 0.009 < 0.007 < 0.006 < 0.032 01-29-15 281 < 0.08 < 0.008 < 0.009 < 0.013 < 0.009 < 0.008 < 0.011 < 0.039 02-05-15 274 < 0.09 < 0.005 < 0.007 < 0.011 < 0.008 < 0.004 < 0.012 < 0.023 02-12-15 272 < 0.08 < 0.004 < 0.007 < 0.010 < 0.009 < 0.005 < 0.010 < 0.048 02-19-15 266 0.13 +/- 0.07 < 0.007 < 0.009 < 0.011 < 0.010 < 0.008 < 0.011 < 0.041 02-26-15 268 < 0.11 < 0.005 < 0.008 < 0.011 < 0.009 < 0.005 < 0.007 < 0.035 03-05-15 271 0.16 +/- 0.06 < 0.008 < 0.005 < 0.010 < 0.007 < 0.008 < 0.006 < 0.043 03-12-15 278 0.19 +/- 0.11 < 0.004 < 0.008 < 0.016 < 0.007 < 0.007 < 0.019 < 0.040 03-19-15 282 0.27 +/- 0.10 < 0.005 < 0.009 < 0.011 < 0.007 < 0.003 < 0.013 < 0.028 03-26-15 286 0.16 +/- 0.10 < 0.007 < 0.007 < 0.012 < 0.007 < 0.008 < 0.009 < 0.043 04-02-15 277 0.19 +/- 0.10 < 0.009 < 0.009 < 0.020 < 0.010 < 0.010 < 0.030 < 0.048 04-09-15 283 < 0.12 < 0.008 < 0.007 < 0.014 < 0.010 < 0.011 < 0.046 < 0.033 04-16-15 284 0.23 +/- 0.11 < 0.009 < 0.010 < 0.027 < 0.009 < 0.008 < 0.030 < 0.038 04-23-15 284 < 0.10 < 0.006 < 0.008 < 0.010 < 0.009 < 0.010 < 0.014 < 0.030 04-30-15 284 < 0.10 < 0.004 < 0.008 < 0.011 < 0.007 < 0.007 < 0.014 < 0.043 05-07-15 284 0.18 +/- 0.10 < 0.005 < 0.007 < 0.019 < 0.009 < 0.007 < 0.035 < 0.031 05-14-15 280 0.24 +/- 0.14 < 0.010 < 0.007 < 0.016 < 0.010 < 0.010 < 0.029 < 0.049 05-21-15 289 < 0.10 < 0.011 < 0.008 < 0.009 < 0.009 < 0.009 < 0.030 < 0.046 05-28-15 284 < 0.11 < 0.006 < 0.006 < 0.010 < 0.009 < 0.007 < 0.024 < 0.047 06-04-15 292 < 0.10 < 0.011 < 0.007 < 0.009 < 0.010 < 0.008 < 0.023 < 0.048 06-11-15 283 0.21 +/- 0.13 < 0.006 < 0.007 < 0.009 < 0.008 < 0.006 < 0.017 < 0.050 06-18-15 289 < 0.11 < 0.004 < 0.008 < 0.010 < 0.008 < 0.007 < 0.013 < 0.047 06-25-15 244 < 0.11 < 0.007 < 0.005 < 0.021 < 0.009 < 0.008 < 0.016 < 0.032 07-02-15 250 < 0.12 < 0.006 < 0.013 < 0.016 < 0.012 < 0.006 < 0.031 < 0.045 07-09-15 243 0.21 +/- 0.12 < 0.007 < 0.005 < 0.011 < 0.008 < 0.005 < 0.015 < 0.063 07-16-15 242 < 0.13 < 0.011 < 0.008 < 0.013 < 0.011 < 0.006 < 0.014 < 0.054 07-23-15 240 < 0.12 < 0.009 < 0.011 < 0.022 < 0.010 < 0.011 < 0.016 < 0.063 07-30-15 239 < 0.12 < 0.009 < 0.010 < 0.020 < 0.011 < 0.012 < 0.014 < 0.037 08-06-15 240 < 0.16 < 0.014 < 0.011 < 0.023 < 0.015 < 0.009 < 0.020 < 0.061 08-13-15 242 < 0.11 < 0.010 < 0.008 < 0.014 < 0.011 < 0.010 < 0.018 < 0.048 08-20-15 240 0.21 +/- 0.11 < 0.006 < 0.007 < 0.012 < 0.012 < 0.009 < 0.015 < 0.044 08-27-15 260 < 0.11 < 0.007 < 0.005 < 0.017 < 0.009 < 0.011 < 0.016 < 0.049 09-03-15 258 < 0.13 < 0.009 < 0.010 < 0.018 < 0.010 < 0.010 < 0.010 < 0.053 09-10-15 257 < 0.14 < 0.009 < 0.010 < 0.019 < 0.012 < 0.012 < 0.032 < 0.045 09-17-15 266 0.21 +/- 0.12 < 0.006 < 0.007 < 0.020 < 0.009 < 0.009 < 0.014 < 0.048 09-24-15 266 < 0.12 < 0.006 < 0.007 < 0.021 < 0.011 < 0.007 < 0.023 < 0.036 10-01-15 261 < 0.13 < 0.009 < 0.006 < 0.023 < 0.011 < 0.006 < 0.015 < 0.059 a

Iodine-131 concentrations are < 0.07 pCi/m 3 unless noted otherwise.

1-3

Table 1. Air particulates and charcoal cartridges, analyses for gamma-emitting isotopes and I-131 a.

Collection: Continuous, weekly exchange.

Units: pCi/m3 Location CA-A-007 (cont.)

7 58 60 95 134 137 140 144 Be Co Co Zr Cs Cs BaLa Ce Required LLDs - - - - 0.050 0.060 - -

Date Collected Vol.

10-08-15 268 < 0.13 < 0.013 < 0.005 < 0.013 < 0.010 < 0.011 < 0.023 < 0.056 10-15-15 262 < 0.16 < 0.008 < 0.006 < 0.012 < 0.013 < 0.011 < 0.036 < 0.048 10-22-15 264 0.26 +/- 0.15 < 0.010 < 0.009 < 0.022 < 0.010 < 0.009 < 0.019 < 0.050 10-29-15 269 < 0.11 < 0.006 < 0.009 < 0.016 < 0.011 < 0.007 < 0.015 < 0.054 11-05-15 275 < 0.10 < 0.008 < 0.005 < 0.017 < 0.009 < 0.008 < 0.018 < 0.040 11-12-15 272 < 0.09 < 0.006 < 0.011 < 0.010 < 0.009 < 0.011 < 0.014 < 0.053 11-19-15 270 < 0.09 < 0.009 < 0.015 < 0.012 < 0.009 < 0.011 < 0.019 < 0.053 11-25-15 229 < 0.13 < 0.011 < 0.007 < 0.015 < 0.012 < 0.012 < 0.045 < 0.061 12-03-15 318 < 0.11 < 0.009 < 0.005 < 0.015 < 0.009 < 0.008 < 0.019 < 0.046 12-10-15 278 < 0.09 < 0.008 < 0.008 < 0.010 < 0.008 < 0.008 < 0.022 < 0.044 12-17-15 272 < 0.15 < 0.012 < 0.008 < 0.020 < 0.010 < 0.007 < 0.036 < 0.052 12-23-15 238 < 0.12 < 0.006 < 0.003 < 0.008 < 0.009 < 0.009 < 0.017 < 0.041 12-31-15 319 < 0.09 < 0.008 < 0.006 < 0.009 < 0.008 < 0.007 < 0.020 < 0.042 a

Iodine-131 concentrations are < 0.07 pCi/m 3 unless noted otherwise.

1-4

Table 1. Air particulates and charcoal cartridges, analyses for gamma-emitting isotopes and I-131 a.

Collection: Continuous, weekly exchange.

Units: pCi/m3 Location CA-A-008 7 58 60 95 134 137 140 144 Be Co Co Zr Cs Cs BaLa Ce Required LLDs - - - - 0.050 0.060 - -

Date Collected Vol.

01-08-15 275 < 0.07 < 0.009 < 0.007 < 0.012 < 0.007 < 0.007 < 0.012 < 0.045 01-15-15 241 < 0.08 < 0.005 < 0.008 < 0.013 < 0.009 < 0.004 < 0.012 < 0.048 01-22-15 242 < 0.10 < 0.006 < 0.008 < 0.013 < 0.011 < 0.005 < 0.007 < 0.057 01-29-15 241 < 0.10 < 0.009 < 0.008 < 0.018 < 0.009 < 0.005 < 0.016 < 0.048 02-05-15 239 < 0.19 < 0.012 < 0.007 < 0.025 < 0.009 < 0.010 < 0.129 < 0.054 02-12-15 237 < 0.08 < 0.006 < 0.009 < 0.021 < 0.010 < 0.008 < 0.010 < 0.036 02-19-15 237 0.23 +/- 0.10 < 0.011 < 0.006 < 0.016 < 0.012 < 0.007 < 0.010 < 0.055 02-26-15 240 < 0.08 < 0.005 < 0.009 < 0.020 < 0.008 < 0.007 < 0.008 < 0.048 03-05-15 240 0.16 +/- 0.08 < 0.005 < 0.007 < 0.014 < 0.009 < 0.007 < 0.007 < 0.026 03-12-15 238 0.16 +/- 0.08 < 0.009 < 0.008 < 0.011 < 0.010 < 0.006 < 0.010 < 0.045 03-19-15 239 < 0.13 < 0.005 < 0.010 < 0.021 < 0.010 < 0.011 < 0.015 < 0.054 03-26-15 232 < 0.09 < 0.010 < 0.008 < 0.020 < 0.007 < 0.007 < 0.012 < 0.048 04-02-15 237 0.20 +/- 0.11 < 0.009 < 0.008 < 0.024 < 0.011 < 0.012 < 0.026 < 0.058 04-09-15 257 < 0.17 < 0.010 < 0.006 < 0.021 < 0.010 < 0.007 < 0.057 < 0.038 04-16-15 267 < 0.12 < 0.005 < 0.011 < 0.013 < 0.010 < 0.009 < 0.022 < 0.070 04-23-15 270 < 0.11 < 0.004 < 0.010 < 0.014 < 0.011 < 0.009 < 0.015 < 0.035 04-30-15 278 0.15 +/- 0.08 < 0.004 < 0.008 < 0.010 < 0.010 < 0.008 < 0.014 < 0.043 05-07-15 278 0.27 +/- 0.10 < 0.007 < 0.007 < 0.008 < 0.009 < 0.008 < 0.023 < 0.044 05-14-15 291 0.24 +/- 0.09 < 0.010 < 0.008 < 0.012 < 0.009 < 0.007 < 0.026 < 0.038 05-21-15 299 < 0.12 < 0.006 < 0.007 < 0.012 < 0.008 < 0.007 < 0.019 < 0.042 05-28-15 299 0.19 +/- 0.10 < 0.004 < 0.007 < 0.013 < 0.010 < 0.008 < 0.013 < 0.023 06-04-15 300 < 0.09 < 0.008 < 0.006 < 0.020 < 0.007 < 0.007 < 0.035 < 0.036 06-11-15 302 0.19 +/- 0.11 < 0.008 < 0.009 < 0.011 < 0.007 < 0.006 < 0.016 < 0.037 06-18-15 310 0.16 +/- 0.09 < 0.004 < 0.009 < 0.017 < 0.006 < 0.007 < 0.012 < 0.049 06-25-15 315 0.19 +/- 0.10 < 0.004 < 0.007 < 0.019 < 0.008 < 0.004 < 0.026 < 0.043 07-02-15 318 < 0.10 < 0.010 < 0.012 < 0.014 < 0.009 < 0.009 < 0.012 < 0.044 07-09-15 321 0.16 +/- 0.08 < 0.007 < 0.004 < 0.010 < 0.005 < 0.006 < 0.011 < 0.035 07-16-15 318 < 0.11 < 0.005 < 0.009 < 0.010 < 0.009 < 0.007 < 0.023 < 0.028 07-23-15 321 < 0.09 < 0.009 < 0.007 < 0.011 < 0.008 < 0.007 < 0.012 < 0.027 07-30-15 320 < 0.12 < 0.008 < 0.007 < 0.018 < 0.008 < 0.006 < 0.017 < 0.047 08-06-15 320 0.26 +/- 0.11 < 0.008 < 0.006 < 0.014 < 0.008 < 0.009 < 0.014 < 0.027 08-13-15 325 0.21 +/- 0.11 < 0.009 < 0.004 < 0.013 < 0.008 < 0.009 < 0.026 < 0.028 08-20-15 325 < 0.13 < 0.006 < 0.004 < 0.010 < 0.009 < 0.007 < 0.028 < 0.033 08-27-15 329 0.18 +/- 0.07 < 0.006 < 0.004 < 0.010 < 0.006 < 0.005 < 0.007 < 0.029 09-03-15 303 0.29 +/- 0.12 < 0.010 < 0.008 < 0.011 < 0.009 < 0.009 < 0.010 < 0.041 09-10-15 298 < 0.12 < 0.008 < 0.008 < 0.013 < 0.009 < 0.005 < 0.010 < 0.041 09-17-15 310 0.21 +/- 0.12 < 0.006 < 0.004 < 0.018 < 0.009 < 0.008 < 0.018 < 0.030 09-24-15 313 0.14 +/- 0.08 < 0.011 < 0.004 < 0.011 < 0.010 < 0.008 < 0.026 < 0.046 10-01-15 310 0.21 +/- 0.12 < 0.008 < 0.006 < 0.020 < 0.009 < 0.009 < 0.020 < 0.045 a

Iodine-131 concentrations are < 0.07 pCi/m 3 unless noted otherwise.

1-5

Table 1. Air particulates and charcoal cartridges, analyses for gamma-emitting isotopes and I-131 a.

Collection: Continuous, weekly exchange.

Units: pCi/m3 Location CA-A-008 (cont.)

7 58 60 95 134 137 140 144 Be Co Co Zr Cs Cs BaLa Ce Required LLDs - - - - 0.050 0.060 - -

Date Collected Vol.

10-08-15 314 < 0.12 < 0.008 < 0.004 < 0.013 < 0.010 < 0.008 < 0.025 < 0.031 10-15-15 307 < 0.12 < 0.010 < 0.007 < 0.015 < 0.009 < 0.006 < 0.040 < 0.035 10-22-15 308 0.20 +/- 0.10 < 0.006 < 0.005 < 0.013 < 0.009 < 0.009 < 0.017 < 0.029 10-29-15 318 < 0.10 < 0.007 < 0.007 < 0.013 < 0.009 < 0.006 < 0.012 < 0.042 11-05-15 323 < 0.10 < 0.010 < 0.006 < 0.013 < 0.008 < 0.005 < 0.016 < 0.042 11-12-15 311 < 0.10 < 0.005 < 0.005 < 0.020 < 0.009 < 0.008 < 0.015 < 0.036 11-19-15 319 0.18 +/- 0.10 < 0.007 < 0.006 < 0.018 < 0.008 < 0.008 < 0.021 < 0.037 11-25-15 273 < 0.13 < 0.013 < 0.013 < 0.016 < 0.010 < 0.007 < 0.033 < 0.031 12-03-15 367 < 0.09 < 0.007 < 0.006 < 0.016 < 0.008 < 0.004 < 0.010 < 0.033 12-10-15 322 < 0.09 < 0.008 < 0.006 < 0.017 < 0.009 < 0.009 < 0.015 < 0.029 12-17-15 318 < 0.10 < 0.008 < 0.003 < 0.018 < 0.009 < 0.007 < 0.048 < 0.039 12-23-15 272 < 0.10 < 0.006 < 0.006 < 0.009 < 0.009 < 0.007 < 0.014 < 0.044 12-31-15 357 < 0.09 < 0.006 < 0.004 < 0.014 < 0.007 < 0.007 < 0.011 < 0.030 a

Iodine-131 concentrations are < 0.07 pCi/m 3 unless noted otherwise.

1-6

Table 1. Air particulates and charcoal cartridges, analyses for gamma-emitting isotopes and I-131 a.

Collection: Continuous, weekly exchange.

Units: pCi/m3 Location CA-A-009 7 58 60 95 134 137 140 144 Be Co Co Zr Cs Cs BaLa Ce Required LLDs - - - - 0.050 0.060 - -

Date Collected Vol.

01-08-15 338 0.15 +/- 0.08 < 0.006 < 0.003 < 0.016 < 0.008 < 0.008 < 0.011 < 0.049 01-15-15 300 < 0.09 < 0.004 < 0.009 < 0.013 < 0.008 < 0.007 < 0.008 < 0.035 01-22-15 308 0.09 +/- 0.05 < 0.005 < 0.006 < 0.009 < 0.006 < 0.005 < 0.006 < 0.029 01-29-15 311 < 0.10 < 0.006 < 0.006 < 0.013 < 0.006 < 0.004 < 0.013 < 0.034 02-05-15 302 < 0.08 < 0.006 < 0.006 < 0.011 < 0.009 < 0.003 < 0.012 < 0.041 02-12-15 298 < 0.08 < 0.008 < 0.008 < 0.015 < 0.008 < 0.006 < 0.009 < 0.034 02-19-15 291 0.18 +/- 0.09 < 0.005 < 0.007 < 0.010 < 0.007 < 0.005 < 0.008 < 0.035 02-26-15 296 < 0.10 < 0.004 < 0.007 < 0.010 < 0.009 < 0.005 < 0.011 < 0.034 03-05-15 297 < 0.10 < 0.008 < 0.005 < 0.009 < 0.008 < 0.008 < 0.010 < 0.039 03-12-15 315 0.21 +/- 0.11 < 0.007 < 0.007 < 0.009 < 0.009 < 0.008 < 0.017 < 0.038 03-19-15 317 0.16 +/- 0.08 < 0.005 < 0.007 < 0.011 < 0.007 < 0.008 < 0.011 < 0.029 03-26-15 314 < 0.11 < 0.009 < 0.005 < 0.015 < 0.009 < 0.007 < 0.010 < 0.037 04-02-15 318 < 0.10 < 0.004 < 0.007 < 0.013 < 0.008 < 0.005 < 0.012 < 0.025 04-09-15 313 < 0.12 < 0.007 < 0.009 < 0.012 < 0.009 < 0.008 < 0.043 < 0.045 04-16-15 317 < 0.15 < 0.010 < 0.006 < 0.014 < 0.014 < 0.009 < 0.036 < 0.040 04-23-15 314 < 0.08 < 0.008 < 0.006 < 0.011 < 0.007 < 0.004 < 0.025 < 0.030 04-30-15 318 < 0.09 < 0.007 < 0.006 < 0.008 < 0.008 < 0.007 < 0.043 < 0.026 05-07-15 313 < 0.13 < 0.008 < 0.008 < 0.018 < 0.008 < 0.008 < 0.030 < 0.036 05-14-15 329 < 0.12 < 0.005 < 0.007 < 0.013 < 0.008 < 0.008 < 0.027 < 0.041 05-21-15 326 < 0.08 < 0.009 < 0.007 < 0.009 < 0.006 < 0.008 < 0.017 < 0.041 05-28-15 329 0.21 +/- 0.08 < 0.004 < 0.007 < 0.010 < 0.006 < 0.008 < 0.012 < 0.040 06-04-15 305 < 0.11 < 0.011 < 0.009 < 0.017 < 0.009 < 0.009 < 0.037 < 0.040 06-11-15 317 0.25 +/- 0.10 < 0.008 < 0.007 < 0.012 < 0.008 < 0.008 < 0.016 < 0.037 06-18-15 316 0.19 +/- 0.11 < 0.008 < 0.007 < 0.010 < 0.006 < 0.007 < 0.012 < 0.031 06-25-15 282 < 0.09 < 0.010 < 0.008 < 0.010 < 0.008 < 0.010 < 0.022 < 0.040 07-02-15 284 0.19 +/- 0.09 < 0.006 < 0.006 < 0.010 < 0.009 < 0.009 < 0.031 < 0.051 07-09-15 284 < 0.09 < 0.004 < 0.005 < 0.010 < 0.004 < 0.006 < 0.013 < 0.040 07-16-15 282 < 0.11 < 0.006 < 0.010 < 0.015 < 0.009 < 0.007 < 0.020 < 0.034 07-23-15 284 < 0.13 < 0.010 < 0.007 < 0.013 < 0.006 < 0.010 < 0.043 < 0.052 07-30-15 281 0.23 +/- 0.10 < 0.010 < 0.007 < 0.018 < 0.009 < 0.011 < 0.017 < 0.035 08-06-15 280 < 0.12 < 0.009 < 0.005 < 0.017 < 0.010 < 0.007 < 0.015 < 0.033 08-13-15 285 < 0.11 < 0.008 < 0.006 < 0.010 < 0.009 < 0.011 < 0.017 < 0.038 08-20-15 282 0.18 +/- 0.09 < 0.006 < 0.008 < 0.016 < 0.010 < 0.008 < 0.022 < 0.044 08-27-15 282 < 0.13 < 0.011 < 0.007 < 0.019 < 0.010 < 0.007 < 0.014 < 0.047 09-03-15 285 0.24 +/- 0.11 < 0.006 < 0.009 < 0.017 < 0.010 < 0.008 < 0.013 < 0.047 09-10-15 281 0.17 +/- 0.10 < 0.007 < 0.005 < 0.014 < 0.010 < 0.008 < 0.011 < 0.043 09-17-15 279 < 0.20 < 0.010 < 0.012 < 0.016 < 0.016 < 0.013 < 0.047 < 0.066 09-24-15 284 < 0.11 < 0.011 < 0.007 < 0.007 < 0.007 < 0.008 < 0.025 < 0.028 10-01-15 278 < 0.10 < 0.008 < 0.005 < 0.016 < 0.009 < 0.009 < 0.013 < 0.043 a

Iodine-131 concentrations are < 0.07 pCi/m 3 unless noted otherwise.

1-7

Table 1. Air particulates and charcoal cartridges, analyses for gamma-emitting isotopes and I-131 a.

Collection: Continuous, weekly exchange.

Units: pCi/m3 Location CA-A-009 (cont.)

7 58 60 95 134 137 140 144 Be Co Co Zr Cs Cs BaLa Ce Required LLDs - - - - 0.050 0.060 - -

Date Collected Vol.

10-08-15 277 < 0.15 < 0.007 < 0.008 < 0.027 < 0.010 < 0.008 < 0.031 < 0.067 10-15-15 275 < 0.12 < 0.007 < 0.006 < 0.012 < 0.009 < 0.009 < 0.033 < 0.066 10-22-15 278 < 0.15 < 0.007 < 0.010 < 0.013 < 0.012 < 0.011 < 0.032 < 0.058 10-29-15 283 < 0.12 < 0.008 < 0.005 < 0.013 < 0.009 < 0.008 < 0.015 < 0.055 11-05-15 285 < 0.16 < 0.017 < 0.013 < 0.018 < 0.013 < 0.012 < 0.031 < 0.052 11-12-15 281 < 0.13 < 0.006 < 0.009 < 0.020 < 0.009 < 0.011 < 0.017 < 0.048 11-19-15 288 < 0.15 < 0.013 < 0.007 < 0.014 < 0.012 < 0.007 < 0.029 < 0.054 11-25-15 244 < 0.16 < 0.008 < 0.008 < 0.010 < 0.011 < 0.012 < 0.040 < 0.063 12-03-15 334 < 0.09 < 0.009 < 0.006 < 0.014 < 0.008 < 0.006 < 0.019 < 0.051 12-10-15 302 < 0.11 < 0.008 < 0.008 < 0.008 < 0.009 < 0.009 < 0.037 < 0.043 12-17-15 304 0.17 +/- 0.08 < 0.004 < 0.005 < 0.014 < 0.008 < 0.007 < 0.018 < 0.039 12-23-15 263 < 0.12 < 0.007 < 0.005 < 0.008 < 0.007 < 0.008 < 0.029 < 0.042 12-31-15 350 < 0.10 < 0.006 < 0.007 < 0.008 < 0.008 < 0.005 < 0.016 < 0.047 a

Iodine-131 concentrations are < 0.07 pCi/m 3 unless noted otherwise.

1-8

Table 1. Air particulates and charcoal cartridges, analyses for gamma-emitting isotopes and I-131 a.

Collection: Continuous, weekly exchange.

Units: pCi/m3 Location CA-B-003 7 58 60 95 134 137 140 144 Be Co Co Zr Cs Cs BaLa Ce Required LLDs - - - - 0.050 0.060 - -

Date Collected Vol.

01-08-15 338 < 0.08 < 0.003 < 0.003 < 0.013 < 0.007 < 0.007 < 0.022 < 0.042 01-15-15 296 0.14 +/- 0.07 < 0.005 < 0.007 < 0.014 < 0.009 < 0.006 < 0.008 < 0.034 01-22-15 285 < 0.08 < 0.005 < 0.009 < 0.014 < 0.007 < 0.006 < 0.006 < 0.034 01-29-15 294 < 0.10 < 0.003 < 0.005 < 0.016 < 0.009 < 0.007 < 0.017 < 0.039 02-05-15 291 < 0.15 < 0.009 < 0.009 < 0.012 < 0.009 < 0.009 < 0.210 < 0.049 02-12-15 287 0.13 +/- 0.08 < 0.006 < 0.007 < 0.012 < 0.010 < 0.005 < 0.010 < 0.045 02-19-15 291 < 0.10 < 0.009 < 0.005 < 0.011 < 0.009 < 0.006 < 0.009 < 0.048 02-26-15 291 0.18 +/- 0.08 < 0.006 < 0.007 < 0.010 < 0.008 < 0.005 < 0.007 < 0.045 03-05-15 291 < 0.10 < 0.007 < 0.006 < 0.015 < 0.010 < 0.010 < 0.010 < 0.039 03-12-15 297 0.22 +/- 0.09 < 0.006 < 0.007 < 0.009 < 0.008 < 0.009 < 0.018 < 0.051 03-19-15 291 < 0.13 < 0.008 < 0.008 < 0.011 < 0.009 < 0.007 < 0.016 < 0.054 03-26-15 294 < 0.08 < 0.006 < 0.005 < 0.011 < 0.007 < 0.007 < 0.009 < 0.036 04-02-15 291 0.19 +/- 0.09 < 0.004 < 0.010 < 0.013 < 0.008 < 0.007 < 0.013 < 0.044 04-09-15 287 < 0.15 < 0.011 < 0.006 < 0.012 < 0.008 < 0.009 < 0.053 < 0.051 04-16-15 286 0.15 +/- 0.11 < 0.006 < 0.008 < 0.012 < 0.008 < 0.007 < 0.019 < 0.043 04-23-15 281 < 0.11 < 0.006 < 0.008 < 0.020 < 0.008 < 0.009 < 0.037 < 0.052 04-30-15 287 0.21 +/- 0.10 < 0.004 < 0.008 < 0.011 < 0.009 < 0.006 < 0.014 < 0.026 05-07-15 282 < 0.14 < 0.008 < 0.008 < 0.017 < 0.010 < 0.007 < 0.040 < 0.039 05-14-15 290 < 0.09 < 0.008 < 0.008 < 0.014 < 0.009 < 0.006 < 0.028 < 0.039 05-21-15 291 < 0.09 < 0.004 < 0.008 < 0.010 < 0.009 < 0.006 < 0.019 < 0.041 05-28-15 288 0.25 +/- 0.11 < 0.003 < 0.008 < 0.011 < 0.008 < 0.009 < 0.014 < 0.052 06-04-15 285 < 0.11 < 0.012 < 0.013 < 0.019 < 0.009 < 0.008 < 0.036 < 0.051 06-11-15 289 < 0.14 < 0.006 < 0.008 < 0.012 < 0.007 < 0.009 < 0.018 < 0.034 06-18-15 284 < 0.12 < 0.006 < 0.007 < 0.020 < 0.008 < 0.007 < 0.025 < 0.041 06-25-15 256 < 0.15 < 0.011 < 0.011 < 0.015 < 0.011 < 0.006 < 0.022 < 0.060 07-02-15 286 < 0.12 < 0.010 < 0.009 < 0.018 < 0.009 < 0.009 < 0.023 < 0.041 07-09-15 284 < 0.10 < 0.006 < 0.004 < 0.009 < 0.008 < 0.007 < 0.013 < 0.027 07-16-15 288 < 0.13 < 0.008 < 0.007 < 0.017 < 0.010 < 0.009 < 0.022 < 0.034 07-23-15 287 < 0.13 < 0.009 < 0.006 < 0.018 < 0.009 < 0.008 < 0.051 < 0.049 07-30-15 284 < 0.14 < 0.007 < 0.008 < 0.017 < 0.010 < 0.009 < 0.021 < 0.044 08-06-15 278 < 0.14 < 0.008 < 0.007 < 0.009 < 0.011 < 0.007 < 0.017 < 0.045 08-13-15 286 < 0.12 < 0.006 < 0.007 < 0.013 < 0.010 < 0.010 < 0.016 < 0.050 08-20-15 281 < 0.12 < 0.007 < 0.007 < 0.019 < 0.009 < 0.006 < 0.042 < 0.050 08-27-15 285 < 0.12 < 0.005 < 0.009 < 0.017 < 0.009 < 0.009 < 0.019 < 0.030 09-03-15 288 0.26 +/- 0.12 < 0.008 < 0.008 < 0.014 < 0.008 < 0.010 < 0.012 < 0.037 09-10-15 280 0.26 +/- 0.12 < 0.007 < 0.006 < 0.009 < 0.010 < 0.006 < 0.016 < 0.031 09-17-15 278 < 0.10 < 0.007 < 0.005 < 0.019 < 0.010 < 0.006 < 0.022 < 0.045 09-24-15 295 < 0.11 < 0.013 < 0.005 < 0.014 < 0.008 < 0.008 < 0.023 < 0.043 10-01-15 297 0.17 +/- 0.09 < 0.005 < 0.005 < 0.014 < 0.007 < 0.007 < 0.010 < 0.028 a

Iodine-131 concentrations are < 0.07 pCi/m 3 unless noted otherwise.

1-9

Table 1. Air particulates and charcoal cartridges, analyses for gamma-emitting isotopes and I-131 a.

Collection: Continuous, weekly exchange.

Units: pCi/m3 Location CA-B-003 (cont.)

7 58 60 95 134 137 140 144 Be Co Co Zr Cs Cs BaLa Ce Required LLDs - - - - 0.050 0.060 - -

Date Collected Vol.

10-08-15 293 < 0.13 < 0.010 < 0.006 < 0.010 < 0.010 < 0.009 < 0.042 < 0.056 10-15-15 289 < 0.10 < 0.007 < 0.012 < 0.013 < 0.009 < 0.007 < 0.033 < 0.055 10-22-15 285 < 0.12 < 0.009 < 0.007 < 0.018 < 0.010 < 0.008 < 0.029 < 0.055 10-29-15 289 < 0.10 < 0.008 < 0.006 < 0.007 < 0.008 < 0.008 < 0.014 < 0.047 11-05-15 291 < 0.12 < 0.010 < 0.007 < 0.021 < 0.010 < 0.006 < 0.023 < 0.049 11-12-15 278 < 0.13 < 0.007 < 0.009 < 0.011 < 0.011 < 0.012 < 0.019 < 0.050 11-19-15 279 < 0.16 < 0.008 < 0.007 < 0.028 < 0.011 < 0.009 < 0.061 < 0.042 11-25-15 234 < 0.16 < 0.010 < 0.011 < 0.023 < 0.012 < 0.007 < 0.031 < 0.051 12-03-15 313 < 0.08 < 0.008 < 0.004 < 0.015 < 0.008 < 0.005 < 0.015 < 0.039 12-10-15 276 < 0.13 < 0.007 < 0.004 < 0.018 < 0.010 < 0.006 < 0.021 < 0.036 12-17-15 277 < 0.11 < 0.007 < 0.003 < 0.015 < 0.008 < 0.007 < 0.024 < 0.032 12-23-15 231 < 0.14 < 0.011 < 0.009 < 0.023 < 0.011 < 0.008 < 0.042 < 0.048 12-31-15 300 < 0.08 < 0.005 < 0.007 < 0.013 < 0.009 < 0.009 < 0.011 < 0.039 a

Iodine-131 concentrations are < 0.07 pCi/m 3 unless noted otherwise.

1-10

Table 2. Milk, analyses for iodine-131 and gamma-emitting isotopes.

Collection: Semimonthly during grazing season, monthly otherwise.

Units: pCi/L Location CA-MLK-M9 Date Lab Concentration (pCi/L)

Collected Code I-131 K-40 Zn-65 Cs-134 Cs-137 Ba-La-140 Required LLDs 1 - - 15 18 15 01-12-15 CAMI -110 < 0.4 1007 +/- 114 < 5.8 < 4.4 < 4.1 < 3.0 02-10-15 CAMI -539 < 0.3 1260 +/- 71 < 5.3 < 2.5 < 2.3 < 2.2 03-10-15 CAMI -987 < 0.3 889 +/- 97 < 7.8 < 3.9 < 3.5 < 3.3 04-13-15 CAMI -1644 < 0.5 1229 +/- 115 < 6.5 < 3.8 < 4.6 < 2.7 04-27-15 CAMI -1963 < 0.2 1213 +/- 127 < 14.2 < 6.0 < 6.5 < 6.4 05-12-15 CAMI -2379 < 0.3 977 +/- 104 < 7.4 < 3.5 < 3.7 < 3.4 05-26-15 CAMI -2583 < 0.4 960 +/- 92 < 7.2 < 3.5 < 4.2 < 2.2 06-09-15 CAMI -2908 < 0.3 952 +/- 88 < 7.6 < 3.9 < 4.1 < 2.5 06-23-15 CAMI -3209 < 0.2 844 +/- 87 < 4.4 < 3.9 < 3.7 < 3.5 07-14-15 CAMI -3715 < 0.5 945 +/- 92 < 5.8 < 3.1 < 3.7 < 3.4 07-28-15 CAMI -4108 < 0.3 1232 +/- 113 < 7.8 < 3.8 < 4.4 < 2.4 08-11-15 CAMI -4448 < 0.4 964 +/- 98 < 3.1 < 3.2 < 3.4 < 2.2 08-25-15 CAMI -4664 < 0.2 1251 +/- 101 < 3.5 < 3.6 < 4.3 < 2.7 09-08-15 CAMI -4929 < 0.2 1148 +/- 126 < 11.4 < 4.6 < 5.0 < 3.7 09-22-15 CAMI -5232 < 0.3 1065 +/- 113 < 4.7 < 4.5 < 4.0 < 1.5 10-13-15 CAMI -5770 < 0.2 1205 +/- 128 < 9.8 < 4.9 < 4.2 < 2.0 10-27-15 CAMI -6233 < 0.4 1220 +/- 102 < 5.3 < 3.3 < 4.7 < 3.3 11-10-15 CAMI -6452 < 0.2 1412 +/- 135 < 7.3 < 5.1 < 3.2 < 1.9 11-24-15 CAMI -6661 < 0.4 1173 +/- 108 < 2.9 < 3.0 < 4.7 < 2.3 12-08-15 CAMI -6934 < 0.3 1350 +/- 103 < 6.1 < 2.6 < 3.1 < 1.4 2-1

Table 3. Vegetation, analyses for iodine-131 and gamma-emitting isotopes.

Collection: Monthly, during growing season Units: pCi/kg wet Collection Concentration (pCi/kg wet) 40 54 58 60 131 134 137 Lab Code Date Sample Type K Mn Co Co I Cs Cs Location: CA-FPL-V9 5/11/2015 NSa 6/10/2015 NSa CAVE- 3716 7/14/2015 Mustard greens 3849 +/- 329 < 7.4 < 10.4 < 7.5 < 18.3 < 11.6 < 9.8 CAVE- 4452 8/11/2015 Mustard Greens 3766 +/- 291 < 7.8 < 8.5 < 4.4 < 19.9 < 9.1 < 10.1 CAVE- 4960 9/8/2015 Turnip greens 4577 +/- 325 < 8.7 < 9.1 < 8.1 < 29.7 < 12.2 < 13.4 CAVE- 4961 9/8/2015 Mustard greens 4101 +/- 386 < 10.5 < 12.0 < 10.1 < 36.9 < 13.9 < 11.5 Location: CA-FPL-V11 5/11/2015 NSa CAVE- 2942 6/8/2015 Lettuce 4177 +/- 242 < 3.8 < 6.2 < 5.6 < 13.2 < 6.1 < 5.5 CAVE- 3718 7/14/2015 Lettuce 3965 +/- 250 < 6.6 < 3.9 < 4.7 < 17.5 < 7.2 < 8.2 CAVE- 4454 8/10/2015 Cabbage 3510 +/- 265 < 8.4 < 10.0 < 5.4 < 15.7 < 7.0 < 9.8 a

9/8/2015 NS Location: CA-FPL-V12 5/11/2015 NSa CAVE- 2944 6/10/2015 Lettuce 4617 +/- 297 < 8.8 < 5.2 < 7.4 < 15.0 < 8.8 < 9.3 CAVE- 2945 6/10/2015 Cabbage 3895 +/- 254 < 7.2 < 5.4 < 6.1 < 13.7 < 7.6 < 5.5 CAVE- 3719 7/14/2015 Cabbage 3126 +/- 240 < 6.4 < 3.5 < 6.3 < 25.4 < 7.9 < 9.1 CAVE- 3720 7/14/2015 Lettuce 5260 +/- 333 < 7.7 < 5.3 < 4.6 < 23.0 < 9.5 < 7.7 CAVE- 4455 8/11/2015 Cabbage 3850 +/- 310 < 11.8 < 10.8 < 6.6 < 18.6 < 11.9 < 10.3 Spinach mustard CAVE- 4962 9/8/2015 4279 +/- 390 < 7.3 < 8.0 < 8.4 < 24.4 < 14.2 < 11.1 tendergreen CAVE- 5771 10/13/2015 Spinach Mustard 4977 +/- 376 < 12.2 < 9.2 < 9.5 < 22.0 < 11.8 < 13.0 a

"NS" = No sample; refer to Part I, Table 5.5, Missed Collections and Analyses.

3-1

Table 3. Vegetation, analyses for iodine-131 and gamma-emitting isotopes.

Collection: Monthly, during growing season Units: pCi/kg wet Collection Concentration (pCi/kg wet) 40 54 58 60 131 134 137 Lab Code Date Sample Type K Mn Co Co I Cs Cs Location: CA-FPL-V16 5/11/2015 NSa CAVE- 2946 6/8/2015 Lettuce 4923 +/- 334 < 9.7 < 7.4 < 9.2 < 24.8 < 9.0 < 10.4 CAVE- 2947 6/8/2015 Collards 6474 +/- 418 < 9.8 < 8.8 < 7.8 < 21.9 < 8.9 < 11.8 CAVE- 2948 6/8/2015 Mustard greens 6554 +/- 371 < 11.8 < 5.8 < 7.5 < 16.5 < 9.0 < 8.8 CAVE- 2949 6/8/2015 Turnip greens 6312 +/- 328 < 10.3 < 8.6 < 6.6 < 16.9 < 8.1 < 9.8 CAVE- 3721 7/13/2015 Mustard 6069 +/- 360 < 9.0 < 7.0 < 10.9 < 14.4 < 8.8 < 12.1 CAVE- 3722 7/13/2015 Lettuce 6959 +/- 410 < 12.2 < 10.2 < 10.8 < 24.0 < 11.9 < 10.1 CAVE- 3723 7/13/2015 Turnips 7401 +/- 477 < 12.6 < 9.9 < 11.4 < 25.4 < 12.4 < 15.9 CAVE- 4456 8/10/2015 Collard Greens 7785 +/- 375 < 9.3 < 5.2 < 8.6 < 21.2 < 9.7 < 7.0 9/8/2015 NSa Location: CA-FPL-V17 CAVE- 2380 5/11/2015 Lettuce 5519 +/- 621 < 15.9 < 12.8 < 18.0 < 22.3 < 14.2 < 17.6 CAVE- 2950 6/9/2015 Mustard greens 2831 +/- 162 < 5.0 < 6.4 < 4.6 < 17.9 < 6.2 < 5.8 CAVE- 2951 6/9/2015 Turnip greens 2977 +/- 169 < 5.9 < 5.0 < 3.3 < 16.3 < 6.0 < 6.5 CAVE- 3724 7/14/2015 Mustard 3956 +/- 210 < 10.3 < 9.3 < 7.5 < 24.4 < 9.6 < 9.1 CAVE- 3725 7/14/2015 Lettuce 5639 +/- 425 < 11.0 < 15.8 < 11.7 < 38.6 < 12.3 < 15.7 CAVE- 4457 8/11/2015 Mustard Greens 5003 +/- 517 < 14.5 < 15.9 < 9.8 < 30.4 < 17.2 < 14.8 CAVE- 4963 9/8/2015 Mustard greens 4524 +/- 457 < 16.5 < 11.5 < 12.3 < 41.8 < 15.1 < 15.1 CAVE- 4964 9/8/2015 Turnip greens 4384 +/- 390 < 12.1 < 9.0 < 12.2 < 30.3 < 10.2 < 10.8 a

"NS" = No sample; refer to Part I, Table 5.5, Missed Collections and Analyses.

3-2

Table 4. Non-food Crops, analyses for tritium and gamma-emitting isotopes.

Collection: Annually, at harvest Units: pCi/kg wet Sample Collection (pCi/L) Concentration (pCi/kg wet) 3 40 54 58 60 134 137 Lab Code Type Date H K Mn Co Co Cs Cs Location: CA-FC-1 10/12/2015 NSa 10/12/2015 NSa 10/12/2015 NSa Location: CA-FC-2 CAVE- 5923 1-Soybeans 10/12/2015 < 148 4291 +/- 286 < 8.1 < 6.1 < 7.8 < 7.8 < 9.1 CAVE- 5925 2-Soybeans 10/12/2015 < 144 5329 +/- 320 < 7.1 < 6.9 < 10.5 < 9.1 < 9.1 CAVE- 5926 3-Soybeans 10/12/2015 < 144 5119 +/- 342 < 7.4 < 8.8 < 9.7 < 9.3 < 10.2 Location: CA-FC-3 CAVE- 5927 1-Soybeans 10/12/2015 < 144 5279 +/- 323 < 4.9 < 8.9 < 7.4 < 10.0 < 10.5 CAVE- 5928 2-Soybeans 10/13/2015 < 148 13280 +/- 642 < 17.6 < 8.8 < 16.4 < 14.0 < 15.0 CAVE- 5929 3-Soybeans 10/13/2015 < 148 14412 +/- 672 < 18.1 < 19.8 < 17.3 < 16.0 < 16.2 Location: CA-FC-4 CAVE- 5930 Soybeans 10/15/2015 < 148 15843 +/- 401 < 6.6 < 4.9 < 7.0 < 7.7 < 9.1 a

"NS" = No sample; see Table 2.0, Listing of Missed Samples.

4-1

Table 5. Soil, analyses for gamma-emitting isotopes.

Collection: Annually Collection Concentration (pCi/kg dry) 40 54 59 58 60 95 134 137 140 Lab Code Date K Mn Fe Co Co ZrNb Cs Cs BaLa Location: SOL-F-002 CASO- 6837 11/25/2015 12007 +/- 671 < 24.2 < 35.6 < 21.0 < 22.0 < 52.2 < 17.5 491 +/- 40 < 57.2 CASO- 6838 11/25/2015 12319 +/- 692 < 24.4 < 57.1 < 24.9 < 22.1 < 57.1 < 22.9 531 +/- 52 < 147.6 Location: SOL-F-006 CASO- 6839 11/23/2015 11119 +/- 671 < 29.5 < 73.1 < 28.1 < 14.5 < 59.6 < 17.4 372 +/- 38 < 64.1 CASO- 6840 11/23/2015 11865 +/- 592 < 25.2 < 54.5 < 23.9 < 15.5 < 43.3 < 18.8 264 +/- 26 < 45.7 Location: SOL-PR-003 CASO- 6844 11/25/2015 10585 +/- 561 < 25.6 < 52.5 < 25.7 < 18.2 < 47.6 < 18.0 391 +/- 32 < 156.6 CASO- 6845 11/25/2015 11147 +/- 673 < 24.1 < 56.2 < 31.3 < 18.7 < 59.6 < 22.8 203 +/- 39 < 63.9 Location: SOL-PR-007 CASO- 6846 11/23/2015 10491 +/- 610 < 24.0 < 75.7 < 25.7 < 19.4 < 43.2 < 16.9 224 +/- 25 < 146.6 CASO- 6847 11/23/2015 11137 +/- 667 < 23.1 < 49.0 < 29.0 < 11.7 < 61.3 < 17.3 208 +/- 34 < 83.5 Location: SOL-M-009 CASO- 6841 11/24/2015 13616 +/- 755 < 21.5 < 54.5 < 28.1 < 20.2 < 45.8 < 20.3 176 +/- 28 < 37.9 CASO- 6843 11/24/2015 12892 +/- 638 < 24.6 < 61.7 < 14.4 < 16.0 < 46.9 < 13.7 156 +/- 20 < 94.5 Location: SOL-W-001 CASO- 6848 11/23/2015 13276 +/- 709 < 21.8 < 40.6 < 32.1 < 19.9 < 60.0 < 18.3 65 +/- 26 < 72.9 CASO- 6849 11/23/2015 12621 +/- 646 < 21.8 < 68.5 < 19.7 < 18.2 < 45.1 < 17.6 < 23.8 < 109.7 Location: SOL-W-002 CASO- 6850 11/23/2015 16597 +/- 769 < 29.2 < 88.6 < 28.1 < 23.0 < 48.1 < 21.6 122 +/- 23 < 167.9 CASO- 6851 11/23/2015 15850 +/- 757 < 28.5 < 88.6 < 33.4 < 21.4 < 47.8 < 19.7 114 +/- 29 < 202.0 Location: SOL-W-003 CASO- 6852 11/23/2015 7313 +/- 534 < 26.7 < 59.6 < 23.4 < 20.4 < 21.9 < 22.4 < 19.0 < 82.9 CASO- 6853 11/23/2015 10138 +/- 643 < 26.7 < 80.4 < 20.3 < 15.1 < 41.8 < 17.3 < 21.6 < 91.3 Location: SOL-W-004 CASO- 6854 11/23/2015 11267 +/- 649 < 27.3 < 38.6 < 26.2 < 22.8 < 37.0 < 24.0 < 26.5 < 135.4 CASO- 6855 11/23/2015 11917 +/- 662 < 24.9 < 32.7 < 28.1 < 20.8 < 47.6 < 18.7 < 25.5 < 252.4 5-1

Table 6. Surface water, analyses for tritium and gamma-emitting isotopes.

Collection: Monthly Location: CA-SWA-S01 Units: pCi/L Lab Code Required CASW- 271 CASW- 747 CASW- 1413 CASW- 2004 Date Collected LLD 01-26-15 02-24-15 03-31-15 04-28-15 H-3 3000 < 192 < 146 < 148 < 147 Mn-54 15 < 4.4 < 3.1 < 2.0 < 1.0 Fe-59 30 < 9.2 < 6.8 < 9.9 < 3.0 Co-58 15 < 4.3 < 5.6 < 2.5 < 1.2 Co-60 15 < 2.9 < 2.6 < 4.0 < 1.1 Zn-65 30 < 3.1 < 5.7 < 4.9 < 2.0 Zr-Nb-95 15 < 2.6 < 3.3 < 4.0 < 2.1 I-131 1000 < 4.7 < 11.9 < 15.3 < 15.9 Cs-134 15 < 4.3 < 4.7 < 4.5 < 1.2 Cs-137 18 < 4.2 < 3.9 < 4.3 < 1.4 Ba-La-140 15 < 3.7 < 5.6 < 10.6 < 6.6 Lab Code Required CASW- 2584 CASW- 3390 CASW- 4205 CASW- 4661 Date Collected LLD 05-26-15 06-29-15 07-28-15 08-25-15 H-3 3000 < 148 < 143 < 142 < 145 Mn-54 15 < 3.0 < 3.1 < 3.6 < 4.4 Fe-59 30 < 5.9 < 5.2 < 6.5 < 8.0 Co-58 15 < 2.8 < 2.9 < 3.2 < 4.5 Co-60 15 < 2.4 < 1.9 < 1.7 < 2.2 Zn-65 30 < 2.4 < 5.3 < 3.2 < 4.5 Zr-Nb-95 15 < 3.5 < 3.2 < 2.8 < 2.9 I-131 1000 < 9.4 < 7.7 < 7.9 < 19.5 Cs-134 15 < 3.9 < 3.7 < 3.2 < 4.3 Cs-137 18 < 3.7 < 3.3 < 3.3 < 4.1 Ba-La-140 15 < 3.4 < 5.4 < 3.6 < 4.6 Lab Code Required CASW- 5409 CASW- 6248 CASW- 6667 CASW- 7253 Date Collected LLD 09-29-15 10-27-15 11-24-15 12-29-15 H-3 3000 < 149 < 143 < 144 < 140 Mn-54 15 < 4.8 < 1.0 < 2.2 < 2.3 Fe-59 30 < 5.4 < 3.5 < 5.9 < 3.5 Co-58 15 < 3.1 < 1.9 < 1.8 < 1.7 Co-60 15 < 4.2 < 1.3 < 3.3 < 2.9 Zn-65 30 < 8.5 < 3.1 < 2.6 < 2.8 Zr-Nb-95 15 < 5.9 < 2.5 < 2.3 < 2.8 I-131 1000 < 12.0 < 23.2 < 7.9 < 16.1 Cs-134 15 < 6.2 < 1.6 < 3.3 < 2.9 Cs-137 18 < 5.9 < 1.8 < 2.0 < 2.5 Ba-La-140 15 < 8.2 < 6.0 < 5.6 < 6.1 6-1

Table 6. Surface water, analyses for tritium and gamma-emitting isotopes.

Collection: Monthly Location: CA-SWA-S02 Units: pCi/L Lab Code Required CASW- 272 CASW- 748 CASW- 1414 CASW- 2005 Date Collected LLD 01-26-15 02-24-15 03-31-15 04-28-15 H-3 3000 < 192 < 146 < 148 < 147 Mn-54 15 < 6.0 < 2.8 < 2.6 < 1.3 Fe-59 30 < 7.1 < 6.4 < 3.3 < 1.9 Co-58 15 < 5.1 < 2.7 < 3.6 < 1.3 Co-60 15 < 2.9 < 1.8 < 1.4 < 0.9 Zn-65 30 < 17.0 < 4.9 < 5.2 < 1.5 Zr-Nb-95 15 < 7.7 < 3.7 < 3.5 < 1.7 I-131 1000 < 7.6 < 8.4 < 19.6 < 15.2 Cs-134 15 < 6.5 < 3.7 < 3.2 < 1.1 Cs-137 18 < 6.3 < 2.5 < 3.3 < 1.3 Ba-La-140 15 < 6.2 < 5.5 < 7.6 < 4.3 Lab Code Required CASW- 2586 CASW- 3391 CASW- 4206 CASW- 4662 Date Collected LLD 05-26-15 06-29-15 07-28-15 08-25-15 a

H-3 3000 < 148 < 143 < 176 351 +/- 90 Mn-54 15 < 2.5 < 1.9 < 3.4 < 4.9 Fe-59 30 < 5.0 < 5.9 < 7.4 < 5.7 Co-58 15 < 2.8 < 1.8 < 3.9 < 2.9 Co-60 15 < 2.6 < 2.6 < 2.2 < 4.0 Zn-65 30 < 6.3 < 2.5 < 3.0 < 5.7 Zr-Nb-95 15 < 4.0 < 4.1 < 2.8 < 3.4 I-131 1000 < 14.3 < 13.2 < 12.7 < 17.0 Cs-134 15 < 3.3 < 3.4 < 3.4 < 5.8 Cs-137 18 < 3.2 < 2.6 < 4.3 < 4.9 Ba-La-140 15 < 6.0 < 2.6 < 3.1 < 9.8 Lab Code Required CASW- 5410 CASW- 6249 CASW- 6668 CASW- 7254 Date Collected LLD 09-29-15 10-27-15 11-24-15 12-29-15 H-3 3000 212 +/- 85 222 +/- 83 171 +/- 80 < 140 Mn-54 15 < 4.5 < 1.9 < 3.6 < 3.2 Fe-59 30 < 6.4 < 4.1 < 5.0 < 3.9 Co-58 15 < 4.2 < 2.1 < 3.3 < 1.9 Co-60 15 < 3.8 < 1.8 < 2.7 < 2.7 Zn-65 30 < 4.9 < 3.3 < 4.2 < 3.6 Zr-Nb-95 15 < 3.6 < 3.8 < 4.3 < 4.7 I-131 1000 < 13.2 < 24.2 < 10.5 < 10.5 Cs-134 15 < 5.4 < 2.1 < 4.6 < 3.2 Cs-137 18 < 5.7 < 2.5 < 4.3 < 2.3 Ba-La-140 15 < 7.8 < 12.9 < 3.8 < 4.0 a

Duplicate result = 416+/-93 pCi/L.

6-2

7. Surface Water (Ponds), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-SWA-UHS CASW- 155 01/13/15 < 188 < 3.6 < 6.1 < 3.8 < 2.9 < 4.9 < 4.2 < 3.8 < 4.2 < 5.1 CASW- 1702 04/14/15 < 158 < 3.1 < 5.4 < 3.3 < 2.7 < 3.2 < 5.2 < 3.2 < 3.5 < 7.4 CASW- 4094 07/27/15 178 +/- 86 < 5.5 < 4.5 < 4.9 < 4.5 < 11.3 < 3.7 < 4.7 < 2.5 < 5.7 Location: CA-SWA-POND 01 CASW- 902 03/03/15 < 147 < 3.7 < 5.2 < 3.0 < 1.7 < 6.4 < 2.8 < 3.5 < 2.8 < 3.3 CASW- 4879 09/01/15 < 147 < 2.0 < 7.0 < 3.1 < 2.4 < 4.2 < 3.6 < 3.5 < 3.6 < 3.1 Location: CA-SWA-POND 02 CASW- 903 03/03/15 < 147 < 4.2 < 10.1 < 4.7 < 2.2 < 7.6 < 3.9 < 4.0 < 3.7 < 5.0 CASW- 4880 09/01/15 < 147 < 0.9 < 2.1 < 1.2 < 1.1 < 1.9 < 1.6 < 1.3 < 1.3 < 8.2 Location: CA-SWA-SLUDGE LAGOON #4 CASW- 910 03/03/15 < 147 < 2.2 < 3.0 < 3.3 < 2.6 < 2.3 < 2.9 < 2.8 < 2.3 < 7.2 CASW- 4887 09/01/15 < 147 < 3.7 < 10.2 < 4.6 < 3.7 < 5.0 < 6.2 < 5.4 < 5.2 < 12.2 7-1

7. Surface Water (Ponds), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-SWA-OUTFALL 010 CASW- 904 03/03/15 < 147 < 1.8 < 3.3 < 1.9 < 1.8 < 3.3 < 2.2 < 2.6 < 2.1 < 5.5 CASW- 4881 09/01/15 < 147 < 1.4 < 3.8 < 1.8 < 1.3 < 1.9 < 2.3 < 1.4 < 1.6 < 5.9 Location: CA-SWA-OUTFALL 011 CASW- 905 03/03/15 < 147 < 3.4 < 8.2 < 3.9 < 2.2 < 2.1 < 3.2 < 3.6 < 3.2 < 5.9 CASW- 4882 09/01/15 < 147 < 1.3 < 4.0 < 1.6 < 1.2 < 2.9 < 1.7 < 1.6 < 1.7 < 2.8 Location: CA-SWA-OUTFALL 012 CASW- 906 03/03/15 < 147 < 2.4 < 7.4 < 2.9 < 1.5 < 3.6 < 3.3 < 2.9 < 2.0 < 4.1 CASW- 4883 09/01/15 < 147 < 0.8 < 2.4 < 1.1 < 0.9 < 2.2 < 1.8 < 1.2 < 1.1 < 3.0 Location: CA-SWA-OUTFALL 013 CASW- 907 03/03/15 < 147 < 2.7 < 3.9 < 3.3 < 1.6 < 3.0 < 2.6 < 3.0 < 3.7 < 7.9 CASW- 4884 09/01/15 < 147 < 1.3 < 3.1 < 1.5 < 1.0 < 2.9 < 1.9 < 1.3 < 1.1 < 4.5 Location: CA-SWA-OUTFALL 014 CASW- 908 03/03/15 < 147 < 2.1 < 7.2 < 1.1 < 1.9 < 3.1 < 2.4 < 3.0 < 2.2 < 4.9 CASW- 4885 09/01/15 < 147 < 1.2 < 4.3 < 1.1 < 1.2 < 2.0 < 2.3 < 1.6 < 1.4 < 5.7 Location: CA-SWA-OUTFALL 015 CASW- 909 03/03/15 < 147 < 2.2 < 3.1 < 1.8 < 1.2 < 2.1 < 1.9 < 1.8 < 2.1 < 4.8 CASW- 4886 09/01/15 < 147 < 1.3 < 3.0 < 1.3 < 1.0 < 1.8 < 1.8 < 1.3 < 1.3 < 8.3 7-2

Table 8. Drinking Water Wells, analysis for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa CA-DWA-003 (Ward)

CADW- 353 1/27/2015 < 180 < 2.5 < 4.5 < 2.1 < 0.9 < 2.4 < 3.3 < 2.7 < 2.9 < 4.0 CADW- 732 2/23/2015 < 146 < 2.6 < 3.3 < 1.5 < 1.8 < 2.5 < 3.2 < 2.8 < 2.9 < 3.5 CADW- 1398 3/30/2015 < 148 < 3.5 < 10.9 < 2.4 < 3.2 < 6.9 < 3.9 < 4.0 < 4.2 < 7.2 CADW- 2237 5/1/2015 < 187 < 2.1 < 8.6 < 3.6 < 2.6 < 5.3 < 2.2 < 2.8 < 2.1 < 13.7 CADW- 4234 7/29/2015 < 139 < 1.5 < 5.7 < 3.0 < 1.6 < 2.5 < 4.0 < 3.4 < 2.9 < 9.2 CADW- 6234 10/26/2015 < 143 < 2.0 < 6.4 < 2.1 < 1.9 < 3.0 < 4.1 < 2.5 < 2.8 < 6.3 CA-DWA-004 (Miller)

CADW- 354 1/27/2015 < 180 < 4.4 < 10.5 < 3.8 < 2.4 < 3.5 < 3.8 < 3.9 < 1.8 < 7.1 CADW- 733 2/23/2015 < 146 < 2.2 < 2.6 < 1.3 < 2.2 < 4.8 < 2.2 < 2.8 < 2.4 < 3.6 CADW- 1399 3/31/2015 < 148 < 3.0 < 8.3 < 3.0 < 3.3 < 6.7 < 6.1 < 4.3 < 3.0 < 6.7 CADW- 2238 5/1/2015 < 187 < 1.8 < 4.4 < 2.1 < 1.4 < 3.2 < 2.9 < 2.4 < 1.9 < 4.1 CADW- 4235 7/29/2015 < 139 < 1.6 < 7.5 < 3.4 < 1.7 < 3.8 < 2.7 < 3.2 < 3.7 < 13.6 CADW- 6235 10/27/2015 < 143 < 2.7 < 4.8 < 2.6 < 2.0 < 3.6 < 3.0 < 2.8 < 3.7 < 11.6 CA-DWA-005 (Hux)

CADW- 355 1/27/2015 < 180 < 2.9 < 7.4 < 2.5 < 2.0 < 4.6 < 3.0 < 2.7 < 2.5 < 5.2 CADW- 734 2/23/2015 < 146 < 4.4 < 6.0 < 3.4 < 2.8 < 9.6 < 6.5 < 4.4 < 3.6 < 6.7 CADW- 1400 3/30/2015 < 148 < 1.5 < 2.9 < 1.3 < 0.8 < 2.5 < 2.0 < 1.1 < 1.1 < 5.7 CADW- 2239 5/1/2015 < 187 < 2.4 < 3.9 < 2.2 < 1.8 < 2.3 < 2.8 < 2.8 < 2.7 < 8.6 CADW- 4236 7/29/2015 < 139 < 2.1 < 6.1 < 2.6 < 1.8 < 5.4 < 5.2 < 3.4 < 3.1 < 12.4 10/26/2015 NSa CA-DWA-006 (Lindeman)

CADW- 356 1/27/2015 < 180 < 2.6 < 5.2 < 3.0 < 2.9 < 3.5 < 4.0 < 3.2 < 2.3 < 7.9 CADW- 735 2/23/2015 < 146 < 2.3 < 6.0 < 2.7 < 2.5 < 2.3 < 2.8 < 2.8 < 1.9 < 4.2 CADW- 1402 3/30/2015 < 148 < 3.6 < 9.9 < 2.4 < 5.2 < 6.2 < 6.5 < 5.6 < 4.9 < 9.8 CADW- 2240 5/1/2015 < 187 < 1.4 < 4.5 < 2.6 < 2.1 < 4.0 < 2.8 < 2.5 < 2.5 < 6.4 CADW- 4237 7/29/2015 < 139 < 1.6 < 6.6 < 2.2 < 2.0 < 3.8 < 3.8 < 3.0 < 2.9 < 14.8 CADW- 6236 10/26/2015 < 143 < 1.8 < 7.2 < 1.3 < 2.4 < 3.9 < 2.3 < 2.9 < 2.5 < 12.0 CA-DWA-007 (Kriete)

CADW- 357 1/27/2015 < 180 < 2.3 < 3.7 < 2.9 < 1.4 < 3.5 < 3.4 < 2.8 < 2.7 < 6.1 CADW- 736 2/23/2015 < 146 < 3.1 < 5.1 < 3.8 < 2.3 < 5.4 < 2.4 < 3.4 < 3.2 < 5.7 CADW- 1403 3/30/2015 < 148 < 2.3 < 6.7 < 3.0 < 2.1 < 5.1 < 2.5 < 3.7 < 3.8 < 4.3 CADW- 2241 5/1/2015 < 187 < 1.1 < 2.7 < 1.3 < 1.1 < 1.9 < 2.2 < 1.2 < 1.4 < 3.9 CADW- 4238 7/29/2015 < 139 < 1.5 < 3.9 < 1.5 < 2.0 < 2.7 < 2.2 < 2.5 < 3.2 < 6.4 CADW- 6237 10/26/2015 < 143 < 2.2 < 4.8 < 1.8 < 2.5 < 4.4 < 4.0 < 2.4 < 2.3 < 5.4 CA-DWA-008 (Brandt)

CADW- 359 1/27/2015 < 180 < 2.3 < 4.4 < 1.7 < 1.4 < 3.1 < 2.6 < 2.5 < 2.6 < 5.0 CADW- 738 2/23/2015 < 146 < 2.6 < 6.2 < 2.2 < 2.5 < 1.9 < 3.4 < 2.9 < 3.0 < 2.5 CADW- 1404 3/30/2015 < 148 < 2.6 < 6.0 < 3.3 < 1.8 < 5.4 < 5.4 < 4.1 < 4.7 < 3.2 CADW- 2242 5/1/2015 < 187 < 1.2 < 2.7 < 1.7 < 1.1 < 2.7 < 2.4 < 1.3 < 1.6 < 3.7 7/29/2015 NSa CADW- 4486 8/11/2015 < 145 < 2.5 < 6.1 < 3.0 < 1.8 < 5.4 < 3.6 < 3.2 < 3.1 < 11.1 CADW- 6238 10/26/2015 < 143 < 2.5 < 5.5 < 3.6 < 1.5 < 3.7 < 3.6 < 2.9 < 3.0 < 7.6 a

"NS" = No sample; see Table 2.0, Listing of Missed Samples.

8-1

Table 8. Drinking Water Wells, analysis for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa CA-DWA-009 (Clardy)

CADW- 360 1/27/2015 < 180 < 2.6 < 6.3 < 3.0 < 1.6 < 2.8 < 2.9 < 3.1 < 2.6 < 10.4 CADW- 739 2/23/2015 < 146 < 2.3 < 4.5 < 2.5 < 1.7 < 5.3 < 2.0 < 2.6 < 3.3 < 2.7 CADW- 1405 3/30/2015 < 148 < 3.7 < 10.6 < 2.1 < 3.3 < 6.8 < 5.8 < 3.9 < 4.3 < 9.3 CADW- 2243 5/1/2015 < 187 < 0.9 < 2.7 < 0.8 < 1.2 < 1.9 < 2.3 < 1.3 < 1.2 < 2.8 CADW- 4239 7/29/2015 < 139 < 3.0 < 4.9 < 2.3 < 1.8 < 5.1 < 2.1 < 3.2 < 1.8 < 7.5 CADW- 6240 10/26/2015 < 143 < 2.2 < 4.7 < 2.6 < 2.0 < 3.4 < 4.9 < 2.5 < 2.4 < 4.6 CA-DWA-010 (Dillon, Susan)

CADW- 361 1/27/2015 < 180 < 1.9 < 4.8 < 1.9 < 2.1 < 2.7 < 3.2 < 2.6 < 1.9 < 8.1 CADW- 740 2/23/2015 < 146 < 4.1 < 5.5 < 3.3 < 3.2 < 4.8 < 5.2 < 4.1 < 3.1 < 6.1 CADW- 1406 3/30/2015 < 148 < 2.8 < 2.8 < 3.6 < 2.5 < 5.8 < 4.7 < 3.0 < 2.2 < 5.5 CADW- 2244 5/1/2015 < 187 < 1.2 < 1.9 < 1.2 < 1.3 < 1.7 < 1.5 < 1.1 < 1.2 < 5.1 CADW- 4240 7/29/2015 < 139 < 3.4 < 5.1 < 3.9 < 1.7 < 4.4 < 2.3 < 3.2 < 3.0 < 8.6 CADW- 6241 10/26/2015 < 143 < 3.0 < 4.4 < 2.9 < 1.8 < 4.3 < 2.8 < 2.9 < 3.1 < 7.5 CA-DWA-012 (Dillon, Joe)

CADW- 362 1/27/2015 < 180 < 2.3 < 3.8 < 1.6 < 1.1 < 3.2 < 3.5 < 2.5 < 2.1 < 6.7 CADW- 741 2/23/2015 < 146 < 3.1 < 5.9 < 2.9 < 1.9 < 5.2 < 3.8 < 3.6 < 3.8 < 5.7 CADW- 1407 3/30/2015 < 148 < 2.7 < 5.5 < 2.8 < 1.7 < 5.6 < 2.3 < 2.9 < 3.4 < 6.1 CADW- 2245 5/1/2015 < 187 < 2.4 < 7.4 < 1.9 < 1.7 < 3.8 < 3.5 < 2.1 < 2.6 < 9.8 CADW- 4241 7/29/2015 < 139 < 2.4 < 4.2 < 2.5 < 1.6 < 1.5 < 3.3 < 3.0 < 3.0 < 15.0 CADW- 6242 10/26/2015 < 143 < 1.3 < 4.0 < 2.5 < 1.7 < 4.3 < 3.4 < 3.0 < 2.7 < 11.3 CA-DWA-022 (Plummer)

CADW- 364 1/27/2015 < 180 < 1.7 < 2.9 < 2.0 < 1.5 < 3.4 < 2.2 < 2.2 < 2.5 < 6.5 CADW- 743 2/23/2015 < 146 < 3.3 < 6.0 < 2.9 < 2.7 < 5.3 < 3.8 < 3.8 < 2.5 < 5.8 CADW- 1409 3/30/2015 < 148 < 2.8 < 3.7 < 1.9 < 1.9 < 3.0 < 3.0 < 2.9 < 1.7 < 5.2 CADW- 2248 5/1/2015 < 187 < 1.3 < 3.1 < 1.2 < 0.7 < 1.8 < 2.1 < 1.2 < 1.1 < 6.0 CADW- 4242 7/29/2015 < 139 < 2.8 < 8.7 < 3.4 < 1.6 < 2.6 < 3.4 < 3.6 < 4.2 < 12.1 CADW- 6244 10/26/2015 < 143 < 2.5 < 5.6 < 1.8 < 1.4 < 4.5 < 2.7 < 2.6 < 2.1 < 8.1 CA-DWA-D01 (Portland Bar/Grill)

CADW- 366 1/27/2015 < 180 < 1.5 < 4.0 < 2.0 < 1.5 < 1.3 < 2.8 < 2.0 < 2.6 < 5.3 CADW- 745 2/23/2015 < 146 < 2.4 < 2.7 < 2.8 < 1.9 < 3.7 < 2.6 < 3.3 < 1.8 < 4.8 CADW- 1411 3/30/2015 < 148 < 2.6 < 5.2 < 2.0 < 1.4 < 2.9 < 2.1 < 2.5 < 2.8 < 3.5 CADW- 2250 5/1/2015 < 187 < 1.2 < 3.1 < 0.9 < 0.9 < 2.4 < 1.4 < 1.1 < 1.1 < 4.9 CADW- 4244 7/29/2015 < 139 < 0.8 < 7.2 < 3.7 < 2.2 < 2.0 < 3.6 < 2.7 < 2.1 < 6.2 CADW- 6246 10/26/2015 < 143 < 1.2 < 5.8 < 1.8 < 2.5 < 3.9 < 3.6 < 2.6 < 2.7 < 4.8 8-2

Table 8. Drinking Water Wells, analysis for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa CA-DWA-PW1 (Plant Cafeteria)

CADW- 367 1/27/2015 < 180 < 1.2 < 1.9 < 1.4 < 1.0 < 2.4 < 1.9 < 1.3 < 1.3 < 3.5 CADW- 746 2/23/2015 < 146 < 3.0 < 3.6 < 1.8 < 1.8 < 4.1 < 2.2 < 2.9 < 3.0 < 2.0 CADW- 1412 3/31/2015 < 148 < 2.4 < 8.5 < 2.2 < 2.6 < 4.7 < 3.5 < 3.8 < 4.2 < 3.2 CADW- 2251 5/1/2015 < 187 < 1.5 < 4.3 < 1.2 < 1.7 < 3.0 < 2.3 < 1.6 < 1.6 < 4.9 CADW- 4245 7/29/2015 < 139 < 1.7 < 3.4 < 1.1 < 1.5 < 2.5 < 1.6 < 1.6 < 1.6 < 3.4 CADW- 6247 10/26/2015 < 143 < 2.5 < 4.6 < 2.4 < 2.1 < 3.1 < 3.6 < 2.0 < 2.9 < 6.1 CA-DWA-21 CADW- 363 1/27/2015 < 180 < 2.1 < 4.6 < 2.1 < 1.9 < 2.1 < 3.1 < 2.2 < 1.5 < 9.4 CADW- 742 2/23/2015 < 146 < 3.5 < 7.3 < 3.8 < 3.5 < 4.1 < 5.3 < 5.3 < 2.4 < 6.2 CADW- 1408 3/30/2015 < 148 < 2.6 < 3.9 < 1.9 < 2.0 < 3.6 < 2.1 < 2.9 < 3.0 < 2.6 CADW- 2246 5/1/2015 < 187 < 1.3 < 1.5 < 1.2 < 1.0 < 1.8 < 2.2 < 1.2 < 1.2 < 3.0 CADW- 4246 7/29/2015 < 139 < 2.2 < 5.3 < 3.0 < 2.5 < 3.8 < 2.6 < 2.9 < 2.0 < 8.7 CADW- 6243 10/26/2015 < 143 < 1.5 < 4.3 < 2.2 < 2.0 < 2.5 < 3.0 < 2.1 < 1.8 < 5.3 CA-DWA-V16 CADW- 365 1/27/2015 < 180 < 2.0 < 4.0 < 2.1 < 1.9 < 4.1 < 2.8 < 1.9 < 2.3 < 4.8 CADW- 744 2/23/2015 < 146 < 2.2 < 4.8 < 2.2 < 1.3 < 2.8 < 3.4 < 3.5 < 3.8 < 6.1 CADW- 1410 3/30/2015 < 148 < 5.0 < 11.1 < 3.9 < 3.7 < 6.8 < 5.5 < 5.7 < 3.5 < 9.6 CADW- 2249 5/1/2015 < 187 < 1.2 < 2.5 < 1.0 < 1.2 < 1.6 < 1.8 < 1.1 < 1.1 < 5.2 CADW- 4247 7/29/2015 < 139 < 2.4 < 6.4 < 2.8 < 1.4 < 4.9 < 3.6 < 3.0 < 2.5 < 5.9 CADW- 6245 10/26/2015 < 143 < 2.2 < 4.4 < 2.9 < 1.7 < 4.9 < 3.7 < 2.6 < 2.6 < 9.1 8-3

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-936 CAWW- 156 1/14/2015 294 +/- 111 < 2.9 < 5.8 < 1.9 < 1.6 < 3.0 < 2.2 < 3.0 < 3.8 < 7.5 CAWW- 601 2/12/2015 394 +/- 119 < 2.7 < 7.4 < 2.8 < 1.7 < 5.5 < 2.2 < 3.4 < 3.3 < 4.7 CAWW- 1067 3/12/2015 269 +/- 88 < 3.1 < 5.1 < 1.8 < 2.6 < 4.6 < 4.5 < 3.8 < 3.4 < 5.0 CAWW- 1681 4/16/2015 218 +/- 89 < 2.3 < 6.4 < 4.1 < 2.0 < 6.5 < 3.7 < 3.7 < 2.5 < 8.1 CAWW- 2406 5/13/2015 < 148 < 3.0 < 5.5 < 3.0 < 2.8 < 4.2 < 5.0 < 3.8 < 3.9 < 3.1 CAWW- 3154 6/19/2015 180 +/- 81 < 3.1 < 3.7 < 3.7 < 2.1 < 1.7 < 1.8 < 3.9 < 4.3 < 2.8 CAWW- 3943 7/20/2015 < 176 < 2.8 < 3.2 < 4.2 < 4.2 < 7.6 < 5.8 < 6.0 < 5.4 < 7.5 CAWW- 4545 8/17/2015 347 +/- 90 < 1.7 < 5.7 < 2.6 < 2.5 < 5.6 < 4.1 < 3.1 < 2.3 < 7.1 CAWW- 5112 9/16/2015 233 +/- 83 < 1.5 < 3.6 < 1.8 < 1.4 < 2.5 < 2.2 < 1.4 < 1.5 < 4.7 CAWW- 5718 10/9/2015 < 149 < 2.0 < 4.8 < 2.3 < 1.8 < 2.9 < 4.2 < 3.3 < 2.0 < 10.2 CAWW- 6555 11/12/2015 332 +/- 88 < 3.9 < 8.6 < 4.1 < 3.1 < 6.9 < 2.5 < 4.4 < 4.3 < 3.8 CAWW- 7011 12/13/2015 260 +/- 84 < 5.3 < 5.3 < 2.6 < 5.3 < 4.2 < 3.9 < 4.8 < 3.5 < 5.4 Location: CA-WWA-937A CAWW- 157 1/13/2015 < 188 < 3.0 < 6.6 < 1.8 < 2.4 < 3.2 < 3.6 < 2.9 < 2.6 < 4.8 CAWW- 602 2/13/2015 < 188 < 3.7 < 5.1 < 3.8 < 3.6 < 3.5 < 3.9 < 3.3 < 3.3 < 7.3 CAWW- 1068 3/13/2015 < 148 < 2.9 < 5.1 < 2.8 < 2.6 < 6.0 < 2.6 < 3.0 < 3.5 < 4.7 CAWW- 1682 4/16/2015 < 158 < 4.0 < 6.8 < 2.9 < 2.5 < 4.8 < 4.9 < 4.3 < 4.4 < 8.9 CAWW- 2508 5/19/2015 < 154 < 4.1 < 6.8 < 4.3 < 3.0 < 6.8 < 4.7 < 4.4 < 3.5 < 7.5 CAWW- 3155 6/19/2015 < 143 < 2.6 < 5.3 < 4.2 < 3.1 < 5.5 < 6.3 < 3.9 < 2.5 < 3.7 CAWW- 3944 7/18/2015 < 176 < 2.9 < 8.9 < 4.1 < 2.4 < 4.2 < 3.8 < 4.7 < 4.1 < 5.5 8/17/2015 NSa Location: CA-WWA-937B CAWW- 158 1/13/2015 < 188 < 3.7 < 5.8 < 2.9 < 2.4 < 4.8 < 4.0 < 3.9 < 3.5 < 4.4 CAWW- 603 2/12/2015 < 188 < 3.8 < 8.4 < 4.2 < 3.2 < 5.6 < 5.2 < 4.3 < 4.9 < 3.2 CAWW- 1069 3/12/2015 < 148 < 2.1 < 3.3 < 3.1 < 2.0 < 5.0 < 3.6 < 3.5 < 4.0 < 7.7 CAWW- 1683 4/15/2015 244 +/- 90 < 4.1 < 12.7 < 4.2 < 3.6 < 4.3 < 3.9 < 4.4 < 3.9 < 5.8 CAWW- 2509 5/19/2015 < 154 < 3.5 < 6.9 < 1.7 < 2.4 < 2.1 < 4.4 < 4.3 < 4.6 < 7.9 CAWW- 3156 6/19/2015 238 +/- 84 < 2.3 < 3.6 < 2.0 < 2.1 < 2.9 < 3.7 < 3.1 < 3.6 < 1.5 CAWW- 3945 7/20/2015 334 +/- 105 < 3.0 < 5.2 < 3.6 < 2.1 < 4.6 < 2.6 < 4.4 < 4.3 < 3.4 CAWW- 4546 8/17/2015 314 +/- 88 < 3.3 < 8.1 < 3.1 < 2.0 < 6.2 < 4.9 < 3.5 < 3.4 < 7.8 CAWW- 5113 9/16/2015 264 +/- 85 < 3.2 < 8.8 < 3.7 < 1.5 < 1.6 < 2.8 < 3.4 < 3.3 < 9.1 CAWW- 5719 10/9/2015 169 +/- 81 < 3.0 < 6.0 < 2.3 < 1.9 < 4.2 < 4.8 < 3.0 < 3.2 < 11.3 11/12/2015 NSa 12/13/2015 NSa a

"NS" = No sample; see Table 2.0, Listing of Missed Samples.

9-1

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-937C CAWW- 159 1/14/2015 < 188 < 2.3 < 7.2 < 3.8 < 3.0 < 8.3 < 4.7 < 3.3 < 3.6 < 5.0 CAWW- 604 2/12/2015 193 +/- 108 < 3.6 < 7.8 < 3.5 < 1.7 < 3.8 < 5.1 < 4.9 < 4.9 < 7.1 CAWW- 1070 3/12/2015 244 +/- 86 < 3.1 < 4.2 < 1.3 < 2.5 < 4.3 < 3.6 < 3.5 < 2.7 < 5.7 CAWW- 1684 4/16/2015 < 158 < 3.8 < 6.6 < 3.4 < 2.4 < 2.1 < 4.4 < 3.1 < 2.9 < 6.6 CAWW- 2407 5/13/2015 < 148 < 3.1 < 6.4 < 2.8 < 2.7 < 4.7 < 4.3 < 3.3 < 2.9 < 4.6 CAWW- 3145 6/18/2015 189 +/- 81 < 2.1 < 3.0 < 2.5 < 1.4 < 4.3 < 2.6 < 3.1 < 2.4 < 2.7 CAWW- 3946 7/20/2015 < 176 < 3.5 < 7.1 < 4.1 < 2.6 < 7.6 < 3.5 < 4.0 < 3.0 < 2.7 8/17/2015 NSa Location: CA-WWA-937D 1/14/2015 NSa CAWW- 605 2/12/2015 452 +/- 122 < 2.5 < 6.9 < 2.9 < 2.6 < 6.2 < 5.1 < 3.9 < 3.5 < 6.9 CAWW- 1071 3/12/2015 568 +/- 101 < 2.8 < 6.4 < 2.9 < 1.3 < 7.1 < 5.0 < 3.9 < 3.2 < 10.6 CAWW- 1685 4/15/2015 275 +/- 92 < 1.6 < 3.9 < 1.7 < 1.6 < 2.2 < 2.5 < 1.8 < 1.1 < 4.4 CAWW- 2408 5/13/2015 < 148 < 3.2 < 9.5 < 4.3 < 3.7 < 3.6 < 6.5 < 4.5 < 4.9 < 7.1 CAWW- 3146 6/18/2015 158 +/- 80 < 2.9 < 4.3 < 1.8 < 2.3 < 3.3 < 3.6 < 3.4 < 2.0 < 1.8 CAWW- 3947 7/20/2015 < 176 < 3.7 < 9.7 < 3.0 < 4.2 < 4.5 < 4.6 < 4.8 < 5.2 < 5.3 CAWW- 4547 8/17/2015 < 145 < 3.0 < 7.2 < 1.6 < 1.4 < 4.4 < 3.1 < 3.6 < 3.5 < 11.8 CAWW- 5114 9/16/2015 < 143 < 1.7 < 3.8 < 1.9 < 1.2 < 2.3 < 2.0 < 1.7 < 1.9 < 6.3 CAWW- 5720 10/9/2015 < 149 < 1.2 < 2.9 < 1.6 < 1.2 < 2.3 < 1.8 < 1.1 < 1.1 < 5.0 CAWW- 6556 11/12/2015 194 +/- 81 < 2.3 < 6.0 < 3.5 < 3.3 < 3.6 < 3.9 < 3.9 < 3.8 < 9.7 CAWW- 7012 12/13/2015 < 149 < 2.4 < 4.2 < 1.9 < 2.0 < 4.1 < 2.4 < 3.0 < 2.5 < 3.9 Location: CA-WWA-937E CAWW- 160 1/14/2015 251 +/- 109 < 2.6 < 6.7 < 2.0 < 2.0 < 3.6 < 4.2 < 2.7 < 2.8 < 7.7 CAWW- 606 2/12/2015 < 188 < 4.2 < 7.5 < 3.3 < 2.0 < 3.8 < 3.9 < 3.8 < 3.8 < 5.7 CAWW- 1072 3/12/2015 < 148 < 1.6 < 2.6 < 2.1 < 2.4 < 4.1 < 3.0 < 2.2 < 2.4 < 4.9 CAWW- 1686 4/15/2015 < 158 < 1.6 < 2.7 < 1.7 < 1.8 < 2.6 < 2.6 < 1.5 < 1.7 < 5.3 CAWW- 2510 5/19/2015 < 154 < 2.0 < 5.4 < 2.3 < 1.6 < 3.4 < 3.9 < 3.5 < 3.2 < 5.6 CAWW- 3157 6/19/2015 < 148 < 1.7 < 8.3 < 3.7 < 2.9 < 4.2 < 3.0 < 5.5 < 4.7 < 4.2 CAWW- 3948 7/20/2015 < 176 < 4.6 < 7.2 < 2.9 < 2.6 < 2.7 < 2.4 < 5.0 < 3.0 < 5.4 8/17/2015 NSa a

"NS" = No sample; see Table 2.0, Listing of Missed Samples.

b "NS" = No sample; see Table 2.0, Listing of Missed Samples.

9-2

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-937F CAWW- 161 1/13/2015 < 188 < 3.2 < 5.9 < 2.6 < 1.5 < 3.2 < 5.1 < 3.1 < 2.4 < 6.3 CAWW- 607 2/12/2015 < 154 < 4.0 < 8.7 < 6.0 < 4.2 < 9.2 < 3.9 < 4.9 < 5.8 < 11.3 CAWW- 1073 3/12/2015 < 148 < 2.4 < 5.8 < 1.3 < 0.9 < 5.3 < 2.6 < 2.6 < 3.0 < 3.0 CAWW- 1687 4/15/2015 < 158 < 2.5 < 6.4 < 3.6 < 2.5 < 6.3 < 4.2 < 3.1 < 3.1 < 4.2 CAWW- 2409 5/13/2015 < 148 < 4.1 < 5.0 < 3.6 < 2.5 < 6.4 < 4.0 < 3.7 < 3.1 < 11.5 CAWW- 3158 6/19/2015 < 148 < 2.8 < 13.2 < 2.4 < 5.0 < 4.2 < 5.4 < 5.0 < 4.2 < 4.7 CAWW- 3950 7/20/2015 < 162 < 5.3 < 6.6 < 5.4 < 5.2 < 9.1 < 4.6 < 5.4 < 4.7 < 5.8 8/17/2015 NSa Location: CA-WWA-938 CAWW- 162 1/13/2015 211 +/- 112 < 1.7 < 6.2 < 1.7 < 3.0 < 3.5 < 3.8 < 3.0 < 2.9 < 6.3 CAWW- 608 2/12/2015 < 154 < 3.2 < 10.7 < 5.2 < 5.8 < 4.3 < 6.1 < 5.1 < 5.6 < 14.3 CAWW- 1074 3/12/2015 < 148 < 2.8 < 5.1 < 2.9 < 2.5 < 4.3 < 2.6 < 3.6 < 2.7 < 5.1 CAWW- 1688 4/15/2015 < 158 < 1.9 < 4.0 < 3.2 < 1.8 < 5.8 < 3.7 < 3.1 < 3.7 < 6.2 CAWW- 2511 5/19/2015 < 154 < 3.4 < 7.2 < 4.7 < 3.8 < 5.7 < 6.2 < 5.4 < 4.0 < 5.7 CAWW- 3144 6/18/2015 174 +/- 80 < 4.2 < 10.0 < 2.3 < 2.8 < 3.1 < 3.6 < 6.1 < 2.9 < 5.9 CAWW- 3951 7/20/2015 < 176 < 3.9 < 8.9 < 4.4 < 2.3 < 4.5 < 2.9 < 4.1 < 4.6 < 6.0 8/17/2015 NSa Location: CA-WWA-939R CAWW- 163 1/14/2015 392 +/- 121 < 3.3 < 6.1 < 2.1 < 1.5 < 3.3 < 5.1 < 3.4 < 2.7 < 7.2 CAWW- 565 2/12/2015 241 +/- 121 < 3.4 < 6.6 < 4.8 < 2.4 < 5.4 < 5.2 < 4.2 < 3.2 < 4.4 CAWW- 1075 3/12/2015 200 +/- 84 < 2.8 < 4.5 < 1.5 < 3.3 < 4.1 < 4.0 < 3.6 < 2.7 < 5.1 CAWW- 1689 4/15/2015 414 +/- 98 < 1.9 < 3.7 < 1.2 < 1.4 < 2.5 < 2.4 < 1.5 < 1.5 < 3.3 CAWW- 2512 5/19/2015 376 +/- 109 < 3.5 < 4.2 < 2.9 < 3.3 < 2.7 < 3.0 < 3.5 < 3.2 < 7.2 CAWW- 3159 6/19/2015 316 +/- 93 < 3.3 < 3.5 < 3.6 < 2.4 < 1.8 < 5.6 < 4.5 < 3.8 < 1.8 CAWW- 3952 7/20/2015 548 +/- 112 < 2.5 < 4.7 < 3.1 < 1.2 < 6.3 < 2.8 < 3.9 < 3.1 < 4.7 CAWW- 4548 8/17/2015 355 +/- 90 < 3.6 < 10.2 < 3.9 < 2.8 < 4.1 < 7.3 < 3.9 < 3.9 < 8.7 CAWW- 5115 9/16/2015 281 +/- 86 < 2.1 < 6.6 < 2.8 < 1.9 < 3.1 < 2.1 < 3.2 < 2.6 < 13.9 CAWW- 5721 10/9/2015 179 +/- 81 < 2.9 < 5.3 < 2.2 < 1.8 < 3.6 < 3.0 < 2.6 < 2.8 < 8.1 CAWW- 6557 11/12/2015 266 +/- 85 < 3.2 < 4.8 < 4.5 < 1.9 < 4.7 < 4.5 < 3.6 < 3.4 < 12.0 CAWW- 7013 12/13/2015 276 +/- 85 < 2.4 < 3.8 < 1.6 < 3.1 < 5.0 < 2.0 < 2.8 < 2.2 < 2.1 a

"NS" = No sample; see Table 2.0, Listing of Missed Samples.

9-3

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-940 CAWW- 164 1/14/2015 < 165 < 2.4 < 4.3 < 3.5 < 3.8 < 4.7 < 3.3 < 2.7 < 2.4 < 4.6 CAWW- 609 2/12/2015 < 154 < 1.4 < 4.0 < 1.9 < 1.3 < 3.7 < 2.0 < 1.8 < 1.6 < 2.7 CAWW- 1076 3/12/2015 156 +/- 82 < 1.8 < 5.4 < 2.0 < 2.0 < 5.3 < 4.4 < 3.5 < 2.7 < 9.9 CAWW- 1690 4/15/2015 < 158 < 2.6 < 7.2 < 1.5 < 2.7 < 4.8 < 4.3 < 2.7 < 2.5 < 5.3 CAWW- 2410 5/13/2015 < 148 < 2.1 < 7.0 < 1.7 < 2.0 < 5.8 < 5.4 < 3.0 < 2.2 < 9.0 CAWW- 3160 6/19/2015 < 148 < 3.9 < 5.8 < 4.2 < 3.8 < 6.8 < 6.0 < 4.4 < 3.1 < 2.6 CAWW- 3953 7/20/2015 < 176 < 7.0 < 5.9 < 3.2 < 4.4 < 5.4 < 7.0 < 6.0 < 3.9 < 8.1 CAWW- 4549 8/17/2015 < 145 < 3.1 < 9.1 < 5.2 < 2.0 < 6.3 < 5.8 < 5.3 < 3.3 < 7.3 CAWW- 5116 9/16/2015 < 142 < 1.5 < 4.3 < 1.8 < 1.2 < 2.7 < 2.6 < 1.6 < 1.8 < 7.7 CAWW- 5722 10/9/2015 < 149 < 2.2 < 6.0 < 2.1 < 2.1 < 3.5 < 3.2 < 2.6 < 2.5 < 10.8 CAWW- 6558 11/12/2015 < 143 < 3.1 < 7.1 < 3.6 < 2.4 < 3.9 < 2.8 < 3.2 < 3.9 < 8.3 CAWW- 7014 12/13/2015 < 146 < 3.1 < 2.6 < 3.5 < 1.7 < 5.7 < 3.2 < 4.2 < 2.9 < 2.1 Location: CA-WWA-941 CAWW- 165 1/14/2015 < 165 < 2.4 < 5.3 < 3.9 < 2.1 < 5.0 < 4.5 < 3.2 < 4.3 < 4.4 CAWW- 610 2/12/2015 < 154 < 2.4 < 7.4 < 3.4 < 2.8 < 4.0 < 3.9 < 3.6 < 3.1 < 5.6 CAWW- 1077 3/12/2015 < 148 < 2.8 < 2.3 < 2.4 < 2.2 < 3.7 < 3.1 < 3.3 < 3.0 < 8.6 CAWW- 1691 4/15/2015 < 158 < 2.0 < 4.3 < 2.5 < 2.6 < 3.3 < 4.8 < 3.2 < 3.2 < 12.6 CAWW- 2513 5/19/2015 < 154 < 2.0 < 5.0 < 3.0 < 2.1 < 5.3 < 3.1 < 3.6 < 4.3 < 3.3 CAWW- 3161 6/19/2015 < 148 < 3.2 < 5.4 < 4.5 < 2.8 < 7.1 < 4.0 < 4.3 < 5.1 < 2.0 CAWW- 3954 7/20/2015 < 176 < 2.6 < 4.0 < 4.3 < 3.4 < 5.7 < 4.3 < 4.0 < 3.9 < 5.1 CAWW- 4550 8/17/2015 < 145 < 2.5 < 6.8 < 6.1 < 3.5 < 3.3 < 4.2 < 4.3 < 3.7 < 5.5 CAWW- 5117 9/16/2015 < 143 < 2.7 < 5.6 < 2.4 < 2.0 < 2.6 < 3.8 < 2.8 < 2.3 < 12.9 CAWW- 5723 10/9/2015 < 149 < 1.6 < 4.4 < 2.5 < 1.0 < 3.3 < 2.8 < 1.7 < 1.9 < 7.6 CAWW- 6559 11/12/2015 < 143 < 4.1 < 3.9 < 2.7 < 4.1 < 5.5 < 5.6 < 4.2 < 3.2 < 10.2 CAWW- 7015 12/13/2015 < 146 < 3.7 < 5.0 < 2.3 < 2.6 < 6.0 < 1.7 < 3.5 < 3.8 < 1.8 Location: CA-WWA-GWS CAWW- 166 1/14/2015 226 +/- 113 < 3.6 < 5.4 < 2.8 < 3.9 < 3.8 < 5.0 < 3.6 < 3.0 < 5.8 CAWW- 612 2/12/2015 201 +/- 93 < 3.3 < 6.8 < 3.3 < 2.8 < 6.1 < 4.6 < 3.5 < 3.3 < 3.7 CAWW- 1081 3/12/2015 < 148 < 3.2 < 8.0 < 3.9 < 2.0 < 6.4 < 3.1 < 4.6 < 2.6 < 8.4 CAWW- 1692 4/16/2015 187 +/- 88 < 3.0 < 6.9 < 3.4 < 3.2 < 5.5 < 3.7 < 3.2 < 3.6 < 10.5 CAWW- 2411 5/13/2015 170 +/- 86 < 3.7 < 7.3 < 2.2 < 2.3 < 2.9 < 2.8 < 3.8 < 3.4 < 4.7 CAWW- 3162 6/19/2015 756 +/- 111 < 1.9 < 5.8 < 3.1 < 3.5 < 3.6 < 4.2 < 3.9 < 4.2 < 2.9 a

CAWW- 4272 6/19/2015 771 +/- 110 CAWW- 3955 7/20/2015 550 +/- 112 < 4.6 < 6.0 < 2.7 < 2.3 < 5.7 < 3.0 < 4.3 < 2.8 < 6.6 CAWW- 4551 8/17/2015 271 +/- 86 < 4.1 < 6.9 < 2.1 < 2.5 < 3.9 < 3.1 < 3.9 < 4.0 < 4.7 CAWW- 5118 9/16/2015 226 +/- 83 < 1.3 < 3.1 < 1.3 < 1.1 < 2.2 < 2.1 < 1.4 < 1.4 < 7.8 CAWW- 5724 10/9/2015 < 149 < 2.5 < 5.2 < 1.9 < 2.2 < 2.3 < 2.8 < 2.6 < 2.7 < 13.0 CAWW- 6560 11/12/2015 161 +/- 80 < 2.4 < 7.0 < 2.1 < 3.1 < 4.2 < 3.8 < 3.9 < 2.6 < 9.5 CAWW- 7016 12/13/2015 248 +/- 83 < 2.7 < 3.6 < 2.4 < 2.5 < 8.0 < 3.5 < 3.6 < 3.8 < 2.0 a

No gamma isotopic requested.

9-4

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-OW-4 CAWW- 153 1/13/2015 260 +/- 109 < 1.7 < 5.9 < 2.2 < 2.3 < 4.5 < 2.4 < 2.4 < 3.3 < 4.4 CAWW- 1693 4/16/2015 213 +/- 89 < 1.7 < 4.7 < 1.1 < 1.8 < 3.0 < 2.8 < 2.1 < 1.9 < 4.3 CAWW- 4090 7/27/2015 284 +/- 91 < 3.4 < 7.2 < 2.1 < 2.2 < 3.4 < 3.5 < 3.2 < 4.0 < 2.7 Location: CA-WWA-OW-5 CAWW- 154 1/13/2015 < 188 < 2.1 < 8.0 < 2.9 < 1.7 < 4.6 < 4.7 < 4.2 < 2.5 < 6.7 CAWW- 1694 4/16/2015 236 +/- 90 < 1.9 < 4.5 < 2.9 < 2.6 < 4.5 < 2.3 < 2.3 < 2.6 < 8.2 CAWW- 4091 7/27/2015 244 +/- 89 < 4.1 < 4.9 < 2.9 < 2.3 < 7.1 < 2.5 < 3.7 < 3.3 < 3.8 Location: CA-WWA-U1MW-001 CAWW- 184 1/19/2015 < 184 < 3.2 < 9.0 < 3.4 < 3.3 < 2.2 < 4.0 < 3.3 < 3.0 < 6.9 CAWW- 1784 4/20/2015 < 150 < 3.2 < 4.2 < 3.2 < 2.7 < 2.2 < 3.9 < 2.9 < 3.0 < 6.9 CAWW- 3884 7/16/2015 < 155 < 2.9 < 6.6 < 5.1 < 3.9 < 8.8 < 2.8 < 4.8 < 5.6 < 8.3 CAWW- 5726 10/8/2015 < 149 < 0.7 < 2.8 < 1.5 < 0.7 < 2.0 < 2.0 < 1.3 < 1.1 < 6.7 Location: CA-WWA-U1MW-002 CAWW- 304 1/26/2015 < 181 < 2.5 < 5.5 < 2.2 < 1.3 < 1.8 < 2.8 < 3.1 < 1.4 < 5.5 CAWW- 2030 4/30/2015 < 159 < 1.2 < 2.4 < 0.9 < 0.9 < 2.6 < 2.0 < 1.3 < 1.3 < 3.8 CAWW- 3956 7/21/2015 < 176 < 3.2 < 5.8 < 3.3 < 3.4 < 6.1 < 3.5 < 4.4 < 5.0 < 5.0 CAWW- 5728 10/8/2015 < 149 < 1.4 < 2.9 < 1.2 < 1.2 < 3.0 < 2.6 < 1.6 < 1.6 < 5.3 Location: CA-WWA-U1MW-004 CAWW- 180 1/19/2015 < 184 < 2.4 < 2.4 < 1.2 < 1.0 < 3.4 < 2.2 < 2.2 < 1.6 < 2.3 CAWW- 1429 4/3/2015 < 148 < 1.1 < 2.7 < 1.2 < 1.4 < 2.8 < 1.9 < 1.3 < 1.3 < 5.8 CAWW- 3677 7/13/2015 < 153 < 3.9 < 5.0 < 5.3 < 1.5 < 8.2 < 5.4 < 4.2 < 5.1 < 5.4 CAWW- 5516 10/5/2015 < 144 < 3.8 < 9.8 < 4.0 < 2.4 < 4.2 < 3.1 < 3.7 < 4.0 < 13.9 Location: CA-WWA-U1MW-005 CAWW- 181 1/19/2015 < 184 < 3.4 < 5.5 < 2.8 < 2.7 < 3.7 < 2.7 < 3.3 < 3.8 < 3.4 CAWW- 1430 4/3/2015 < 148 < 1.0 < 2.2 < 1.2 < 0.7 < 2.2 < 1.5 < 1.1 < 1.3 < 2.9 CAWW- 3678 7/13/2015 < 153 < 3.3 < 5.0 < 1.7 < 2.5 < 6.4 < 2.4 < 3.3 < 2.3 < 5.1 CAWW- 5517 10/5/2015 < 144 < 3.1 < 9.7 < 2.5 < 2.0 < 3.9 < 4.2 < 3.5 < 3.3 < 12.1 Location: CA-WWA-U1MW-006 CAWW- 307 1/27/2015 < 181 < 1.6 < 1.8 < 1.5 < 1.3 < 2.3 < 2.0 < 1.4 < 2.0 < 3.7 CAWW- 2028 4/29/2015 < 159 < 1.4 < 2.9 < 1.5 < 1.5 < 2.1 < 1.7 < 1.3 < 1.6 < 6.6 CAWW- 3882 7/16/2015 < 155 < 3.3 < 6.7 < 3.7 < 3.1 < 4.6 < 3.5 < 4.1 < 4.6 < 6.5 CAWW- 5730 10/8/2015 < 149 < 1.2 < 2.4 < 1.2 < 1.0 < 2.9 < 1.8 < 1.3 < 1.5 < 4.9 9-5

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-U1MW-010 CAWW- 223 1/23/2015 < 173 < 3.9 < 6.4 < 3.4 < 2.4 < 4.5 < 5.0 < 3.7 < 4.7 < 9.8 CAWW- 1790 4/21/2015 < 150 < 3.2 < 5.9 < 3.9 < 2.1 < 3.7 < 2.9 < 3.1 < 3.1 < 8.3 CAWW- 3883 7/16/2015 < 155 < 5.4 < 7.2 < 4.2 < 5.9 < 8.6 < 7.9 < 5.8 < 6.4 < 13.5 CAWW- 5725 10/7/2015 < 149 < 1.4 < 4.3 < 1.3 < 1.4 < 3.5 < 2.5 < 1.6 < 2.0 < 5.2 Location: CA-WWA-U1MW-012 CAWW- 306 1/27/2015 < 181 < 2.3 < 3.6 < 2.5 < 3.0 < 4.1 < 2.5 < 3.5 < 3.4 < 7.1 CAWW- 2027 4/29/2015 < 159 < 2.5 < 2.5 < 2.0 < 1.7 < 4.0 < 2.4 < 2.5 < 1.7 < 7.9 CAWW- 4082 7/24/2015 < 146 < 1.5 < 4.6 < 2.5 < 1.7 < 3.8 < 1.7 < 3.6 < 2.5 < 5.3 CAWW- 5729 10/8/2015 < 149 < 1.9 < 2.9 < 1.5 < 1.6 < 3.0 < 2.3 < 1.6 < 1.7 < 3.2 Location: CA-WWA-U1MW-013 CAWW- 186 1/20/2015 < 184 < 4.5 < 5.9 < 4.1 < 2.5 < 7.9 < 4.7 < 4.9 < 3.6 < 3.5 CAWW- 1786 4/21/2015 < 150 < 4.1 < 8.9 < 2.8 < 2.7 < 5.9 < 6.6 < 3.6 < 3.4 < 4.5 CAWW- 4077 7/21/2015 < 146 < 4.2 < 7.5 < 3.9 < 2.3 < 4.7 < 5.2 < 3.5 < 3.9 < 5.4 CAWW- 5727 10/8/2015 < 149 < 1.8 < 4.2 < 1.9 < 1.3 < 3.7 < 2.5 < 1.9 < 2.3 < 2.8 Location: CA-WWA-U1MW-014 CAWW- 310 1/27/2015 224 +/- 108 < 2.5 < 4.4 < 3.0 < 1.4 < 3.8 < 3.1 < 2.5 < 2.4 < 4.4 CAWW- 1513 4/6/2015 215 +/- 84 < 2.9 < 3.5 < 1.3 < 1.9 < 3.4 < 2.5 < 2.6 < 2.5 < 4.1 CAWW- 4085 7/24/2015 < 146 < 3.4 < 5.0 < 1.3 < 1.7 < 4.1 < 3.9 < 2.7 < 3.8 < 5.2 CAWW- 5518 10/5/2015 280 +/- 86 < 3.7 < 8.4 < 3.9 < 3.8 < 6.3 < 6.0 < 3.1 < 4.0 < 9.1 Location: CA-WWA-U1MW-015 CAWW- 182 1/19/2015 < 184 < 2.1 < 4.2 < 1.7 < 1.2 < 2.4 < 1.5 < 2.1 < 2.2 < 3.9 CAWW- 1787 4/20/2015 < 150 < 2.7 < 4.5 < 2.5 < 1.8 < 2.5 < 3.5 < 2.4 < 2.3 < 5.4 CAWW- 3679 7/13/2015 < 153 < 0.8 < 7.0 < 1.7 < 2.5 < 4.8 < 2.9 < 3.1 < 3.3 < 5.7 CAWW- 5519 10/5/2015 < 144 < 3.1 < 7.5 < 3.6 < 1.7 < 6.4 < 4.7 < 3.5 < 3.4 < 6.0 Location: CA-WWA-U1MW-016 CAWW- 185 1/19/2015 < 184 < 2.8 < 3.0 < 2.9 < 3.0 < 4.5 < 3.3 < 2.4 < 2.4 < 3.0 CAWW- 1428 4/3/2015 < 148 < 1.3 < 3.0 < 1.1 < 1.3 < 2.1 < 2.0 < 1.3 < 1.4 < 3.7 CAWW- 3881 7/15/2015 < 155 < 3.5 < 5.0 < 2.5 < 3.1 < 4.6 < 6.2 < 4.2 < 4.7 < 3.0 CAWW- 5520 10/5/2015 < 144 < 3.5 < 8.0 < 3.8 < 2.8 < 5.3 < 3.8 < 3.9 < 2.3 < 13.0 Location: CA-WWA-U1MW-017 CAWW- 308 1/27/2015 < 181 < 3.6 < 8.3 < 2.4 < 3.2 < 5.9 < 4.5 < 3.6 < 2.3 < 4.9 CAWW- 1514 4/6/2015 < 147 < 0.8 < 2.6 < 0.9 < 1.3 < 1.3 < 1.6 < 1.3 < 1.2 < 2.4 CAWW- 4083 7/24/2015 < 146 < 3.6 < 7.0 < 3.3 < 3.4 < 1.9 < 2.7 < 3.3 < 3.9 < 2.9 Location: CA-WWA-U1MW-18 CAWW- 309 1/27/2015 < 181 < 4.3 < 5.2 < 3.3 < 2.7 < 1.9 < 5.5 < 3.5 < 3.6 < 5.4 CAWW- 1515 4/6/2015 227 +/- 85 < 2.0 < 2.9 < 3.0 < 2.4 < 1.5 < 2.4 < 2.8 < 1.7 < 3.9 CAWW- 4084 7/24/2015 197 +/- 87 < 3.2 < 4.8 < 3.8 < 2.8 < 6.2 < 3.6 < 3.9 < 4.7 < 3.8 a

CAWW- 5521 10/5/2015 157 +/- 80 a

Gamma isotopic not requested.

9-6

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-U1MW-19 CAWW- 301 1/26/2015 209 +/- 107 < 2.9 < 10.8 < 2.7 < 3.0 < 6.1 < 6.0 < 4.2 < 4.6 < 7.2 CAWW- 1517 4/6/2015 344 +/- 90 < 1.0 < 3.0 < 1.3 < 1.5 < 2.2 < 1.8 < 1.3 < 1.0 < 3.5 CAWW- 4079 7/22/2015 176 +/- 86 < 3.7 < 4.2 < 4.0 < 3.3 < 3.5 < 2.6 < 4.3 < 3.8 < 4.2 a

CAWW- 5522 10/5/2015 < 150 Location: CA-WWA-U1MW-20 CAWW- 296 1/26/2015 < 181 < 4.7 < 11.6 < 6.3 < 2.9 < 9.1 < 5.9 < 5.0 < 6.0 < 7.8 CAWW- 1712 4/17/2015 < 158 < 1.5 < 3.2 < 1.7 < 1.7 < 2.9 < 2.0 < 1.7 < 1.5 < 4.6 CAWW- 4081 7/22/2015 < 146 < 5.1 < 5.2 < 3.9 < 3.9 < 12.1 < 6.6 < 6.0 < 4.1 < 7.9 a

CAWW- 5523 10/5/2015 < 150 Location: CA-WWA-U1MW-021 CAWW- 302 1/26/2015 < 181 < 2.7 < 6.8 < 1.9 < 2.5 < 4.8 < 4.0 < 3.5 < 3.8 < 6.6 CAWW- 1518 4/6/2015 < 147 < 1.2 < 2.1 < 1.4 < 1.2 < 1.8 < 2.2 < 1.3 < 1.3 < 2.4 CAWW- 4078 7/22/2015 < 146 < 3.1 < 5.0 < 3.2 < 1.6 < 2.4 < 2.4 < 3.3 < 3.9 < 4.2 Location: CA-WWA-U1MW-022 CAWW- 303 1/26/2015 < 181 < 4.4 < 8.3 < 3.5 < 3.6 < 6.4 < 4.4 < 5.0 < 5.0 < 3.8 CAWW- 1519 4/6/2015 < 147 < 1.2 < 2.1 < 1.2 < 0.8 < 2.2 < 1.2 < 1.1 < 1.3 < 2.4 CAWW- 4080 7/22/2015 < 146 < 3.2 < 5.4 < 2.1 < 2.4 < 6.9 < 3.2 < 3.8 < 2.7 < 2.7 Location: CA-WWA-U1MW-023 CAWW- 300 1/26/2015 < 181 < 1.9 < 7.4 < 3.1 < 2.5 < 5.8 < 4.3 < 3.1 < 2.5 < 3.1 CAWW- 1713 4/17/2015 < 158 < 2.3 < 3.7 < 2.7 < 2.1 < 2.4 < 2.7 < 2.6 < 2.2 < 7.0 CAWW- 3885 7/17/2015 < 155 < 2.6 < 5.8 < 3.8 < 2.7 < 4.8 < 2.2 < 3.8 < 2.9 < 5.7 Location: CA-WWA-U1MW-024 CAWW- 299 1/26/2015 < 181 < 3.3 < 5.9 < 2.9 < 1.8 < 4.2 < 3.8 < 3.1 < 3.3 < 4.8 CAWW- 1714 4/17/2015 < 158 < 3.5 < 5.7 < 4.0 < 3.2 < 5.2 < 2.9 < 3.4 < 3.3 < 2.1 CAWW- 3887 7/17/2015 < 155 < 4.9 < 10.4 < 5.1 < 4.1 < 4.9 < 5.9 < 5.3 < 4.6 < 10.3 Location: CA-WWA-U1MW-025 CAWW- 298 1/26/2015 < 181 < 2.5 < 6.1 < 2.5 < 3.3 < 4.5 < 3.3 < 4.0 < 3.8 < 2.6 CAWW- 1715 4/17/2015 < 158 < 2.4 < 8.0 < 2.3 < 2.0 < 4.7 < 2.6 < 2.2 < 2.6 < 9.3 CAWW- 3888 7/17/2015 < 155 < 3.7 < 6.8 < 3.6 < 1.9 < 4.8 < 6.3 < 4.1 < 5.6 < 8.0 a

Gamma isotopic not requested.

9-7

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-U1MW-26 CAWW- 297 1/26/2015 < 181 < 4.3 < 7.0 < 4.1 < 3.0 < 4.1 < 2.9 < 4.2 < 4.3 < 5.3 CAWW- 1716 4/17/2015 < 158 < 2.7 < 5.7 < 2.7 < 3.3 < 3.6 < 4.2 < 3.3 < 2.8 < 10.2 CAWW- 3889 7/17/2015 < 155 < 4.2 < 9.4 < 4.6 < 2.5 < 5.8 < 3.9 < 4.1 < 4.0 < 5.5 Location: CA-WWA-U1MW-27 CAWW- 183 1/19/2015 < 184 < 2.7 < 5.2 < 2.0 < 2.2 < 5.6 < 2.4 < 3.9 < 3.7 < 5.2 CAWW- 1788 4/20/2015 < 150 < 2.3 < 4.3 < 2.2 < 1.6 < 3.2 < 2.9 < 2.2 < 2.1 < 8.2 CAWW- 3674 7/13/2015 < 153 < 6.8 < 8.4 < 5.0 < 5.1 < 5.6 < 7.0 < 5.7 < 5.5 < 10.9 Location: CA-WWA-U1MW-28 1/26/2015 NSa 4/20/2015 NSa 7/13/2015 NSa Location: CA-WWA-U1MW-29 CAWW- 224 1/23/2015 < 173 < 3.9 < 6.4 < 3.4 < 2.4 < 4.5 < 5.0 < 3.7 < 4.7 < 9.8 CAWW- 1789 4/21/2015 < 150 < 3.6 < 5.8 < 3.4 < 2.3 < 3.6 < 4.8 < 3.2 < 2.2 < 7.8 CAWW- 3957 7/18/2015 < 176 < 5.2 < 5.6 < 4.6 < 3.9 < 4.0 < 4.1 < 5.7 < 3.7 < 7.9 Location: CA-WWA-U1MW-30 CAWW- 305 1/26/2015 < 181 < 2.4 < 4.4 < 1.7 < 2.4 < 3.8 < 4.6 < 3.2 < 3.1 < 2.9 CAWW- 2029 4/30/2015 < 159 < 2.8 < 6.4 < 2.4 < 2.3 < 5.5 < 5.2 < 3.9 < 2.8 < 11.1 CAWW- 4092 7/27/2015 < 146 < 3.5 < 7.2 < 2.5 < 2.3 < 5.6 < 4.5 < 3.7 < 3.2 < 4.3 Location: CA-WWA-U1MW-31 CAWW- 149 1/12/2015 6269 +/- 295 < 4.0 < 4.9 < 2.9 < 2.5 < 6.5 < 4.9 < 3.4 < 3.7 < 5.9 CAWW- 585 2/13/2015 4553 +/- 278 < 2.8 < 5.1 < 3.3 < 2.3 < 3.0 < 2.8 < 3.3 < 4.6 < 3.0 CAWW- 1078 3/13/2015 7012 +/- 254 < 2.5 < 4.9 < 1.7 < 2.0 < 2.3 < 1.7 < 2.7 < 2.7 < 2.3 CAWW- 1695 4/14/2015 4931 +/- 217 < 1.8 < 4.2 < 2.2 < 1.7 < 2.9 < 2.9 < 1.7 < 1.1 < 5.9 CAWW- 2412 5/12/2015 9213 +/- 284 < 1.7 < 2.9 < 2.7 < 2.8 < 2.4 < 2.5 < 3.2 < 3.5 < 8.8 CAWW- 3143 6/17/2015 2215 +/- 152 < 2.7 < 4.5 < 3.2 < 2.6 < 3.0 < 4.8 < 3.2 < 3.4 < 3.4 CAWW- 3625 7/10/2015 1683 +/- 151 < 1.4 < 5.2 < 3.6 < 3.8 < 5.2 < 4.0 < 3.6 < 3.9 < 6.4 b

CAWW- 5745 10/12/2015 1960 +/- 145 a

"NS = No sample; see Table 2.0, Listing of Missed Samples.

b Gamma isotopic not requested.

9-8

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-U1MW-34 CAWW- 151 1/12/2015 7748 +/- 325 < 2.0 < 5.9 < 2.0 < 1.6 < 1.9 < 2.8 < 2.6 < 2.6 < 5.2 CAWW- 586 2/13/2015 6701 +/- 326 < 6.1 < 8.8 < 7.1 < 2.4 < 7.6 < 4.7 < 6.4 < 5.3 < 13.7 CAWW- 1079 3/13/2015 6270 +/- 241 < 2.4 < 3.4 < 1.8 < 2.4 < 3.3 < 5.1 < 3.3 < 3.5 < 8.0 CAWW- 1696 4/14/2015 3691 +/- 192 < 3.0 < 3.4 < 2.2 < 2.3 < 4.0 < 4.2 < 3.2 < 2.3 < 5.6 CAWW- 2413 5/12/2015 2608 +/- 165 < 1.9 < 4.1 < 3.3 < 2.5 < 2.1 < 4.1 < 3.4 < 3.3 < 6.0 CAWW- 3129 6/17/2015 1518 +/- 132 < 3.4 < 7.3 < 2.2 < 3.0 < 6.1 < 2.6 < 3.8 < 4.2 < 2.4 CAWW- 3626 7/10/2015 1541 +/- 147 < 2.2 < 5.8 < 3.4 < 2.1 < 3.5 < 4.6 < 3.4 < 3.1 < 9.6 a

CAWW- 5746 10/12/2015 1151 +/- 120 Location: CA-WWA-U1MW-36 CAWW- 152 1/12/2015 13295 +/- 418 < 3.7 < 3.2 < 2.4 < 2.0 < 5.6 < 4.0 < 3.6 < 2.3 < 4.7 CAWW- 587 2/13/2015 12732 +/- 434 < 5.3 < 8.8 < 4.0 < 3.6 < 6.6 < 3.7 < 3.6 < 4.5 < 6.5 CAWW- 1080 3/13/2015 10074 +/- 300 < 3.6 < 7.8 < 2.2 < 3.6 < 5.0 < 3.4 < 4.1 < 2.7 < 5.9 CAWW- 1698 4/14/2015 3669 +/- 191 < 1.5 < 3.3 < 1.5 < 0.9 < 2.7 < 1.9 < 1.5 < 1.8 < 3.2 CAWW- 2414 5/12/2015 4360 +/- 204 < 3.5 < 7.1 < 3.6 < 3.3 < 4.5 < 4.9 < 4.7 < 4.8 < 5.9 CAWW- 3128 6/17/2015 2437 +/- 158 < 2.7 < 6.1 < 2.2 < 3.8 < 6.4 < 4.6 < 4.2 < 2.3 < 5.0 CAWW- 3627 7/10/2015 1712 +/- 152 < 2.9 < 5.2 < 3.0 < 2.9 < 2.9 < 3.2 < 4.4 < 3.2 < 9.9 a

CAWW- 5747 10/12/2015 1614 +/- 135 Location: CA-WWA-U1MW-39 CAWW- 1697 4/14/2015 < 158 < 2.7 < 6.4 < 2.6 < 1.5 < 5.4 < 2.6 < 2.6 < 2.9 < 4.6 CAWW- 2415 5/12/2015 < 148 < 4.0 < 6.6 < 4.4 < 3.0 < 4.0 < 2.3 < 4.4 < 3.8 < 6.7 CAWW- 3126 6/16/2015 < 143 < 3.4 < 5.1 < 2.8 < 2.2 < 4.8 < 4.5 < 3.6 < 2.9 < 2.0 CAWW- 3628 7/10/2015 < 154 < 5.7 < 5.1 < 4.9 < 3.1 < 5.6 < 5.7 < 4.6 < 3.7 < 10.7 a

CAWW- 5717 10/8/2015 < 149 a

Gamma isotopic not requested.

9-9

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-U1MW-47 CAWW- 2417 5/12/2015 5325 +/- 222 < 2.5 < 6.8 < 3.2 < 2.9 < 4.5 < 4.1 < 3.3 < 2.6 < 5.6 CAWW- 3123 6/16/2015 1783 +/- 140 < 3.5 < 6.0 < 3.2 < 2.5 < 5.8 < 3.5 < 3.5 < 2.8 < 2.5 CAWW- 3676 7/13/2015 1914 +/- 148 < 1.6 < 5.2 < 1.9 < 0.9 < 1.6 < 2.9 < 2.9 < 2.4 < 2.4 a

CAWW- 5524 10/5/2015 1192 +/- 123 Location: CA-WWA-U1MW-58 CAWW- 150 1/12/2015 7121 +/- 312 < 2.8 < 4.3 < 1.9 < 2.2 < 3.1 < 3.0 < 2.4 < 2.9 < 2.2 CAWW- 1699 4/14/2015 3669 +/- 191 < 3.4 < 6.8 < 3.4 < 3.4 < 2.4 < 5.6 < 3.0 < 2.5 < 7.1 CAWW- 2418 5/12/2015 2911 +/- 172 < 2.1 < 3.5 < 1.8 < 1.1 < 2.8 < 3.4 < 3.2 < 3.6 < 7.4 CAWW- 3127 6/17/2015 2441 +/- 158 < 4.4 < 8.8 < 3.3 < 3.8 < 6.4 < 4.3 < 4.1 < 4.5 < 4.7 CAWW- 3629 7/10/2015 1957 +/- 158 < 3.0 < 7.7 < 3.1 < 1.6 < 3.7 < 5.1 < 4.0 < 3.9 < 7.7 a

CAWW- 5748 10/12/2015 1333 +/- 126 Location: CA-WWA-U1MW-59 CAWW- 1700 4/14/2015 < 158 < 3.1 < 7.0 < 2.5 < 2.1 < 5.4 < 5.2 < 3.7 < 3.1 < 13.4 CAWW- 2419 5/12/2015 < 148 < 2.3 < 6.2 < 2.9 < 1.9 < 4.8 < 4.3 < 2.9 < 3.3 < 8.3 CAWW- 3125 6/16/2015 < 143 < 4.6 < 11.9 < 4.5 < 2.9 < 7.5 < 3.4 < 4.7 < 3.5 < 5.0 CAWW- 3880 7/15/2015 < 155 < 3.6 < 6.3 < 3.1 < 3.5 < 5.3 < 4.4 < 3.8 < 5.7 < 7.8 CAWW- 5800 10/15/2015 < 148 < 3.8 < 7.6 < 2.8 < 3.4 < 5.6 < 4.1 < 3.1 < 3.7 < 3.5 a

Gamma isotopic not requested.

9-10

Table 9. Wells and Ponds (non-potable), analyses for tritium and gamma-emitting isotopes.

Collection Concentration (pCi/L) 3 54 59 58 60 65 95 134 137 140 Lab Code Date H Mn Fe Co Co Zn ZrNb Cs Cs BaLa Location: CA-WWA-U2MW-2S CAWW- 47 1/8/2015 < 172 < 4.0 < 6.5 < 5.8 < 3.9 < 12.1 < 8.7 < 6.1 < 5.4 < 5.0 CAWW- 1791 4/20/2015 < 150 < 2.3 < 3.0 < 2.1 < 1.6 < 5.2 < 3.2 < 2.6 < 2.0 < 5.6 CAWW- 3891 7/16/2015 < 155 < 5.8 < 6.0 < 4.2 < 4.6 < 8.0 < 5.4 < 6.3 < 4.2 < 14.1 a

CAWW- 5716 10/7/2015 < 149 Location: CA-WWA-U2MW-5S CAWW- 187 1/19/2015 < 184 < 2.4 < 7.1 < 3.6 < 2.3 < 4.7 < 4.3 < 3.6 < 3.1 < 8.3 CAWW- 1793 4/20/2015 < 150 < 4.7 < 9.7 < 3.4 < 3.3 < 11.9 < 9.2 < 4.9 < 3.9 < 10.1 CAWW- 3890 7/15/2015 < 155 < 3.0 < 4.2 < 1.7 < 1.9 < 3.6 < 3.2 < 3.6 < 2.4 < 7.2 a

CAWW- 5715 10/7/2015 < 149 Location: CA-WWA-U2MW-8 CAWW- 225 1/22/2015 < 173 < 3.4 < 7.2 < 2.0 < 3.3 < 8.3 < 6.8 < 5.5 < 3.2 < 8.4 CAWW- 1796 4/21/2015 < 150 < 2.3 < 5.3 < 3.3 < 1.6 < 4.2 < 2.7 < 2.6 < 2.9 < 3.8 CAWW- 3958 7/18/2015 < 176 < 3.9 < 4.4 < 4.4 < 4.1 < 8.0 < 6.8 < 5.1 < 4.0 < 5.3 a

CAWW- 5749 10/12/2015 < 149 Location: CA-WWA-U2MW-9 CAWW- 226 1/22/2015 < 173 < 5.5 < 7.0 < 5.1 < 4.2 < 10.4 < 7.1 < 5.2 < 6.3 < 11.5 CAWW- 1795 4/21/2015 < 150 < 2.5 < 3.6 < 3.0 < 2.6 < 2.7 < 3.1 < 2.6 < 2.7 < 4.3 CAWW- 3959 7/18/2015 < 176 < 4.5 < 3.9 < 2.5 < 3.5 < 8.0 < 3.5 < 4.9 < 4.5 < 5.4 Location: CA-WWA-U2MW-10 CAWW- 228 1/23/2015 < 173 < 2.4 < 3.9 < 3.0 < 2.5 < 4.3 < 2.7 < 2.5 < 3.2 < 5.6 CAWW- 1794 4/21/2015 < 150 < 3.3 < 3.9 < 3.0 < 2.0 < 3.1 < 4.3 < 2.7 < 2.7 < 6.8 CAWW- 4086 7/24/2015 < 146 < 1.2 < 3.2 < 1.5 < 2.9 < 3.7 < 2.8 < 3.0 < 2.3 < 4.6 CAWW- 5731 10/8/2015 < 149 < 1.4 < 3.4 < 1.0 < 0.8 < 1.8 < 2.4 < 1.2 < 1.1 < 2.6 Location: CA-WWA-U2MW-12 CAWW- 227 1/23/2015 < 173 < 3.1 < 3.8 < 2.4 < 2.4 < 5.7 < 3.4 < 3.3 < 3.4 < 3.3 CAWW- 1792 4/20/2015 < 150 < 2.4 < 8.6 < 3.4 < 2.2 < 5.0 < 5.4 < 3.3 < 4.2 < 7.8 CAWW- 3892 7/16/2015 < 155 < 4.1 < 11.5 < 2.5 < 2.9 < 4.7 < 4.1 < 4.2 < 5.1 < 4.2 Location: CA-WWA-U2MW-16 CAWW- 188 1/19/2015 < 184 < 2.5 < 4.7 < 2.9 < 2.4 < 2.0 < 2.7 < 2.9 < 1.6 < 2.8 CAWW- 1427 4/3/2015 < 148 < 3.1 < 6.3 < 3.2 < 2.3 < 5.5 < 2.2 < 3.1 < 2.0 < 6.7 CAWW- 3630 7/10/2015 < 154 < 2.7 < 6.8 < 2.9 < 2.0 < 7.1 < 4.8 < 3.6 < 4.2 < 9.3 a

CAWW- 5713 10/7/2015 < 149 Location: CA-WWA-F-005 CAWW- 104 1/9/2015 < 173 < 2.1 < 3.1 < 2.1 < 2.0 < 4.1 < 2.3 < 2.5 < 1.4 < 3.0 CAWW- 1415 4/1/2015 < 148 < 1.6 < 6.2 < 2.5 < 2.2 < 2.3 < 2.5 < 2.2 < 2.5 < 7.0 CAWW- 3392 6/29/2015 < 143 < 2.6 < 3.1 < 2.8 < 3.0 < 3.2 < 2.4 < 3.3 < 2.5 < 3.2 CAWW- 5920 10/16/2015 < 142 < 3.5 < 9.2 < 6.4 < 6.3 < 14.9 < 4.9 < 6.6 < 3.3 < 6.7 Location: CA-WWA-F-015 CAWW- 106 1/9/2015 < 173 < 1.6 < 5.7 < 1.8 < 2.0 < 3.5 < 3.5 < 2.4 < 2.3 < 4.3 CAWW- 1416 4/1/2015 < 148 < 3.6 < 6.0 < 1.9 < 2.2 < 5.2 < 3.5 < 3.2 < 3.5 < 4.1 CAWW- 3393 6/29/2015 < 143 < 2.0 < 2.7 < 2.2 < 1.6 < 2.8 < 2.9 < 2.9 < 2.1 < 4.3 CAWW- 5921 10/16/2015 < 142 < 5.3 < 7.2 < 4.0 < 6.0 < 8.2 < 3.4 < 5.7 < 5.6 < 9.0 a

Gamma isotopic not requested.

9-11

Table 10a. Bottom sediments, analyses for gamma-emitting isotopes.

Collection: Semiannually Units: pCi/kg dry Location CA-AQS-A Lab Code Req. LLD CABS- 1888 CABS- 6161 Date Collected - 04-23-15 10-22-15 K-40 - 13781 +/- 666 15245 +/- 741 Mn-54 - < 17.1 < 29.8 Fe-59 - < 26.3 < 60.4 Co-58 - < 17.5 < 26.0 Co-60 - < 12.4 < 24.0 Zr-Nb-95 - < 20.9 < 47.1 Cs-134 150 < 16.5 < 18.6 Cs-137 180 < 19.7 < 27.4 Ba-La-140 - < 17.5 < 68.9 Location CA-AQS-C Lab Code Req. LLD CABS- 1889 CABS- 6162 Date Collected - 04-23-15 10-22-15 K-40 - 14471 +/- 713 12009 +/- 667 Mn-54 - < 25.5 < 24.5 Fe-59 - < 26.6 < 40.1 Co-58 - < 22.4 < 28.6 Co-60 - < 8.5 < 21.7 Zr-Nb-95 - < 38.7 < 52.9 Cs-134 150 < 20.6 < 23.1 Cs-137 180 76 +/- 30.7 < 23.4 Ba-La-140 - < 27.4 < 121.0 10-1

Table 10b. Shoreline sediments, analyses for gamma-emitting isotopes.

Collection: Semiannually Units: pCi/kg dry Location CA-AQS-A Lab Code Req. LLD CASS- 1886 CASS- 6159 Date Collected - 04-23-15 10-22-15 K-40 - 13063 +/- 674 14781 +/- 691 Mn-54 - < 18.9 < 24.6 Fe-59 - < 23.2 < 80.6 Co-58 - < 16.1 < 33.1 Co-60 - < 8.4 < 19.4 Zr-Nb-95 - < 38.1 < 56.2 Cs-134 150 < 20.0 < 19.2 Cs-137 180 < 21.9 < 24.2 Ba-La-140 - < 30.9 < 271.6 Location CA-AQS-C Lab Code Req. LLD CASS- 1887 CASS- 6160 Date Collected - 04-23-15 10-22-15 K-40 - 14968 +/- 684 12957 +/- 603 Mn-54 - < 24.3 < 22.7 Fe-59 - < 60.4 < 59.5 Co-58 - < 19.6 < 23.8 Co-60 - < 9.3 < 19.0 Zr-Nb-95 - < 28.8 < 49.9 Cs-134 150 < 20.0 < 18.4 Cs-137 180 90 +/- 24.5 < 17.1 Ba-La-140 - < 68.0 < 59.0 10-2

Table 11. Fish, analyses for gamma-emitting isotopes.

Collection: Semiannually Units: pCi/kg wet Location CA-AQF-A Lab Code Req. LLD CAF- 1876 CAF- 1877 CAF- 1878 CAF- 1879 CAF- 1880 Date Collected 04-23-15 04-23-15 04-23-15 04-23-15 04-23-15 Sample Type River Bigmouth Freshwater Common Carp Silver Carp Carpsucker Buffalo Drum K-40 - 3766 +/- 424 2353 +/- 328 2349 +/- 337 2986 +/- 396 2224 +/- 367 Mn-54 130 < 11.7 < 12.8 < 13.2 < 13.7 < 14.0 Fe-59 260 < 48.9 < 44.4 < 42.6 < 48.3 < 52.3 Co-58 130 < 10.9 < 18.9 < 17.7 < 9.9 < 11.0 Co-60 130 < 12.7 < 12.9 < 10.7 < 12.4 < 17.7 Zn-65 260 < 16.4 < 24.2 < 31.4 < 9.7 < 24.6 Cs-134 130 < 13.6 < 16.3 < 14.3 < 13.6 < 19.9 Cs-137 150 < 15.3 < 10.8 < 10.2 < 16.5 < 18.3 Lab Code CAF- 6148 CAF- 6149 CAF- 6150 CAF- 6151 CAF- 6152 Date Collected 10-22-15 10-22-15 10-22-15 10-22-15 10-22-15 Sample Type Freshwater Common Carp Black Buffalo Channel Catfish Silver Carp Drum K-40 - 2950 +/- 352 2949 +/- 387 3030 +/- 358 3104 +/- 350 2340 +/- 325 Mn-54 130 < 12.8 < 16.1 < 15.3 < 12.4 < 12.0 Fe-59 260 < 27.2 < 37.9 < 29.7 < 29.0 < 39.6 Co-58 130 < 18.1 < 17.6 < 16.1 < 14.8 < 13.5 Co-60 130 < 13.9 < 10.3 < 7.5 < 9.8 < 8.1 Zn-65 260 < 17.9 < 36.6 < 22.0 < 18.4 < 13.6 Cs-134 130 < 13.7 < 16.4 < 14.3 < 15.6 < 15.2 Cs-137 150 < 9.1 < 14.5 < 15.9 < 10.0 < 13.7 11-1

Table 11. Fish, analyses for gamma-emitting isotopes.

Collection: Semiannually Units: pCi/kg wet Location CA-AQF-C Lab Code Req. LLD CAF- 1881 CAF- 1882 CAF- 1883 CAF- 1884 CAF- 1885 Date Collected 04-23-15 04-23-15 04-23-15 04-23-15 04-23-15 Sample Type River Bigmouth Freshwater Common Carp Silver Carp Carpsucker Buffalo Drum K-40 - 3181 +/- 455 2931 +/- 401 2839 +/- 396 3029 +/- 401 2771 +/- 361 Mn-54 130 < 12.8 < 18.3 < 21.6 < 13.1 < 12.2 Fe-59 260 < 67.3 < 56.3 < 50.7 < 53.6 < 47.4 Co-58 130 < 10.6 < 12.9 < 10.3 < 13.2 < 19.2 Co-60 130 < 13.7 < 12.9 < 15.3 < 13.3 < 11.2 Zn-65 260 < 11.9 < 25.3 < 37.3 < 19.5 < 29.9 Cs-134 130 < 14.6 < 18.0 < 19.7 < 15.6 < 14.3 Cs-137 150 < 15.1 < 19.6 < 17.1 < 15.3 < 18.9 Lab Code CAF- 6153 CAF- 6154 CAF- 6156 CAF- 6157 CAF- 6158 Date Collected 10-22-15 10-22-15 10-22-15 10-22-15 10-22-15 Sample Type Freshwater Common Carp Black Buffalo Channel Catfish Silver Carp Drum K-40 - 2524 +/- 339 2542 +/- 362 2918 +/- 367 3384 +/- 429 2383 +/- 362 Mn-54 130 < 15.9 < 7.3 < 13.1 < 14.3 < 10.0 Fe-59 260 < 15.1 < 32.6 < 46.0 < 60.6 < 41.9 Co-58 130 < 21.3 < 18.6 < 19.3 < 15.2 < 12.3 Co-60 130 < 15.9 < 6.7 < 9.3 < 16.6 < 15.1 Zn-65 260 < 24.0 < 21.5 < 33.8 < 41.8 < 15.9 Cs-134 130 < 14.9 < 17.5 < 13.5 < 18.2 < 13.3 Cs-137 150 < 10.9 < 17.4 < 15.3 < 17.6 < 13.7 11-2

Table 12a. Direct Radiation Gamma (quarterly exposure)

Location Gamma Dose (mrem/90 days)

QTR 1 QTR 2 QTR 3 QTR 4 CA-IDM-1A 16.55 15.06 15.53 15.95 CA-IDM-3 17.25 15.65 16.28 16.59 CA-IDM-5 14.39 13.11 14.13 14.27 CA-IDM-6 16.37 15.54 15.42 16.13 CA-IDM-7 16.51 14.95 15.73 16.26 CA-IDM-9 14.54 13.65 15.50 15.11 CA-IDM-10 16.94 16.16 16.84 16.83 CA-IDM-11A 16.48 16.48 17.11 17.05 CA-IDM-14 15.53 14.31 15.31 16.22 CA-IDM-17 15.18 14.28 14.36 15.85 CA-IDM-18A 15.58 15.05 15.15 16.48 CA-IDM-20 16.00 15.21 15.78 17.05 CA-IDM-21 15.63 14.35 15.49 15.91 CA-IDM-22A 13.11 12.66 12.33 12.67 CA-IDM-23 16.54 15.40 15.92 17.08 CA-IDM-26 (C) 11.88 10.54 11.30 11.44 CA-IDM-27 (C) 17.79 16.38 16.24 17.74 CA-IDM-30A 15.38 13.97 15.97 16.07 CA-IDM-31A 16.32 15.24 16.52 17.05 CA-IDM-32 15.83 14.71 16.10 16.07 CA-IDM-32A 14.86 14.33 14.88 15.34 CA-IDM-33 15.65 13.99 16.43 15.63 CA-IDM-34 16.27 14.29 14.92 14.44 CA-IDM-35 14.75 13.50 15.01 14.34 CA-IDM-36 14.80 13.43 14.54 15.15 CA-IDM-37 15.59 13.79 14.54 15.99 CA-IDM-38 11.13 10.58 11.23 10.95 CA-IDM-39 16.22 14.40 15.62 15.71 CA-IDM-39A 16.04 14.67 15.74 15.55 CA-IDM-40 16.98 15.52 17.02 17.25 CA-IDM-41 15.51 15.24 15.23 15.69 CA-IDM-42 13.81 12.57 13.16 13.84 CA-IDM-43 16.23 13.95 15.80 15.91 CA-IDM-44 15.71 14.32 15.42 15.33 CA-IDM-45 14.53 12.99 13.77 14.34 CA-IDM-46 16.68 15.32 16.79 16.17 CA-IDM-47 15.07 14.52 15.49 15.78 CA-IDM-48 15.71 14.87 15.72 15.94 CA-IDM-49 15.18 14.76 13.95 15.50 CA-IDM-50 16.32 15.04 14.84 16.04 CA-IDM-51A 16.70 15.56 16.23 17.83 CA-IDM-52 16.87 16.58 16.39 16.88 CA-IDM-60 (C) 16.23 15.91 15.00 15.80 12-1

Table 12b. Direct Radiation Neutron (quarterly exposure)

Neutron Dose (mrem/91 days)

Location QTR 1 QTR 2 QTR 3 QTR 4 CA-IDM-60N* - - 0.0 0.0 CA-IDM-61N 0.0 0.0 0.0 0.0 CA-IDM-62N 0.0 0.0 0.0 0.0 CA-IDM-63N 0.0 0.0 0.0 0.0 CA-IDM-64N 0.0 0.0 0.0 0.0

• Control station. Neutron control TLDs were not placed until the 3rd quarter, 2015.

12-2