Text

2017 Annual Radiological Environmental Operating Report
	ML18131A177
Person / Time
Site:	Duane Arnold
Issue date:	05/11/2018
From:	Dean Curtland; NextEra Energy Duane Arnold
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	NG-18-0054
	Download: ML18131A177 (142)
	v • d • e

May 11, 2018 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001 Duane Arnold Energy Center Docket No. 50-331 Renewed Op. License No. DPR-49 NEXTera EN ERGY~

NG-18-0054 TS 5.6.2

Subject:

2017 Annual Radiological Environmental Operating Report Please find as Enclosure 1 to this letter, a copy of NextEra Energy Duane Arnold, LLC's 2017 Annual Radiological Environmental Operating Report for the Duane Arnold Energy Center, pursuant to the requirements of ODAM Section 8.2.2 and Technical Specification Section 5.6.2.

This letter contains no new commitments nor does it revise any existing commitments.

Should you have any questions regarding this matter, please contact Michael Casey at (319) 851-7606.

Sincerely, Dean Curtland Site Director NextEra Energy Duane Arnold, LLC Enclosure cc:

Regional Administrator, USNRC, Region Ill Resident Inspector, USNRC, Duane Arnold Energy Center Project Manager, USNRC, Duane Arnold Energy Center NextEra Energy Duane Arnold, LLC, 3277 DAEC Road, Palo, IA 52324

Duane Arnold Energy Center to NG-18-0054 2017 Annual Radiological Environmental Operating Report 140 Pages to follow

NEXTeraM ENERGY~

DUANE ARNOLD 2017 Annual Radiological Environmental Operating Report Duane Arnold Energy Center Cedar Rapids, Iowa Docket No. 50-331 January 1, 201 7 through December 31, 201 7

NEXTera ~

EN ERGY~

DUANE ARNOLD Duane Arnold Energy Center Safety Information Built in a low-risk seismic zone: Duane Arnold is in a very seismically stable area of the country.

Constructed to withstand earthquakes and tornados: Despite the low risk from seismic events, the plant is designed to withstand earthquakes, tornados and other events stronger than ever recorded in the region.

Protected from flooding: The plant is elevated 20 feet above river level to protect against flooding.

" During 2008's historic 500-year flood, the Cedar River crested 14 feet below the plant's design flood level

" During this event, DAEC was able to continue safe and reliable operations Seven-day power supply: Safety and cooling systems can be powered for seven days without requiring any offsite power or additional fuel.

System Information PRIMARY SYSTEM Designed with multiple safety systems:

The Nuclear Regulatory Commission has mandated several structural Improvements over time, enhancing Duane Arnold's ability to deal with significant events:

" Four offsite power lines power the site's cooling system

" Two on-site diesel generators are available to provide back-up emergency power to plant safety equipment

" Multiple steam-driven cooling pumps are available to power cooling systems (do not require external power)

" Back-up batteries for all critical cooling and control room systems are stored on-site

,, External cooling options (i.e. injection and fire pumps) are pre-staged on-site; can use river water for cooling Highly trained plant operators: For one full week out of every six weeks, plant operators must prove their ability to safely operate the plant in a variety of worst-case scenarios that include earthquakes, severe storms, flooding, loss-of-power and loss of reactor core cooling.

Reactor Type One General Electric Bolling Water Reactor with a net electrical output of 615 MWe Reactor Core Reactor Vessel Reactor Design SECONDARY SYSTEM Turbine/Generator Cooling Towers 368 fuel assemblies 67' high; 15' wide General Electric Mark 1 General Electric Mechanical draft type -

two towers, 12 cells each, makeup water from Cedar River Fact Sheet SITE ADDRESS 3277 DAEC Road Palo, IA 52324 CORPORATE MEDIA LINE (561) 694-4442 General Information The Duane Arnold Energy Center (DAEC) is located in Palo, Iowa, approximately nine miles northwest of Cedar Rapids. It is bordered by cornfields of neighboring farms and the banks of the Cedar River.

>>Workforce 600 during normal operations; nearly 1,500 during outage operations

>>Salaries Approximately $85 million annually

>> Economic impact Stimulates $255 million in economic activity in Iowa, $514 million nationally

>> Property taxes paid Approximately $3 million annually

>> Construction permit granted June 1970

>> Full power operating license February 1974

>> Commercial operation February 1975 For More Information:

nexteraenergyresources.com duanearnold.com nrc.gov

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2017 Annual Radiological Environmental Operating Report Prepared Reviewed By:

Approved By:

Duane Arnold Energy Center DOCKET NUMBER. 50-331 I ~

Date:

t/-23--1 B Daron Tanko Date: r£0J(

Date: 4/ztJ /t8 Dean Curtland

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All Environmental, Inc.

/"'\\I Midwest Laboratory 700 L1ndwehr Road, Northbrook, IL 60062-2310 phone (847) 564*0700, fax (017) 564*4517 DUANE ARNOLD ENERGY CENTER CEDAR RAPIDS, IOWA DOCKET NO. 50-331 REPORT to the UNITED STATES NUCLEAR REGULATORY COMMISSION Annual Radiological Environmental Operating Report January 1 to December 31, 2017 Prepared by ATI ENVIRONMENTAL, Inc.

Midwest Laboratory Project No. 8001

PREFACE Staff members of the Environmental, Inc., Midwest Laboratory were responsible for the acquisition of data presented in this report, with the exception of Appendices D and E which were completed by DAEC personnel. All environmental samples, with the exception of aquatic, were collected by personnel of DAEC. Aquatic samples were collected by the University of Iowa Hygienic Laboratory.

The report was prepared by Environmental, Inc., Midwest Laboratory, with the exception of Appendices D and E, which were prepared by DAEC personnel.

ii

TABLE OF CONTENTS PART!

No.

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 3.2.1 Environmental Monitoring.............................................................................4 3.2.2 Groundwater Protection Program.................................................................. 5 3.3 Program Execution................................................................................................. 5 3.4 Laboratory Procedures........................................................................................... 6 3.5 Program Modifications............................................................................................ 6 4.0 RES UL TS AND DISCUSSION..................................................................................... 7 4.1 Atmospheric Nuclear Detonations and Nuclear Accidents..................................... 7 4.2 Program Findings.................................................................................................... 7 4.3 Groundwater Protection Program Findings........................................................... 10 5.0 TABLES AND FIGURES............................................................................................. 11

6.0 REFERENCES

CITED................................................................................................ 25 APPENDICES A

lnterlaboratory Comparison Program Results......................................................... A-1 B

Data Reporting Conventions.................................................................................... B-1 C

Effluent Concentration Limits for Radioactivity in Air and Water Above Background in Unrestricted Areas..................................................................... C-1 D

Summary of the Land Use Census.......................................................................... D-1 E

Annual Radiation DoseAssessment........................................................................ E-1 iii

TABLE OF CONTENTS (continued)

PARTll Data Tabulations and Analyses..................................................................................... i iv

LIST OF TABLES 5.1 Characteristic Properties of Isotopes Quantified in Gamma-spectroscopic Analyses.............................................................................................................. 12 5.2 Sample Collection and Analysis Program.................................................................... 13 5.3 Sampling Locations, DAEC......................................................................................... 15 5.4 Type and Frequency of Collections............................................................................. 17 5.5 Sample Codes for Tables 5.4 and 5.6......................................................................... 18 5.6 Program Deviations..................................................................................................... 19 5.7 Radiological Environmental Monitoring Program Summary....................................... 20 In addition, the following tables are included in the Appendices:

Appendix A A-0 Attachment A............................................................................................................ A0-2 A-1 Environmental Resource Associates (RAD)............................................................ A 1-1 A-2 lnterlaboratory 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 (MRAD)......................................................... A7-1 AppendixC C-1 Effluent Concentration Limits for Radioactivity in Air and Water Above Background in Unrestricted Areas.............................................................. C-2 v

LIST OF FIGURES 5.1 Radiological Environmental Monitoring Program Sampling Stations near the Duane Arnold Energy Center......................................................................... 23 5.2 Radiological Environmental Monitoring Program Sampling Stations Outside 0.5 Miles......................................................................................................... 24 vi

1.0 INTRODUCTION

This report summarizes and interprets results of the Radiological Environmental Monitoring Program (REMP) conducted by Environmental, Inc., Midwest Laboratory at the Duane Arnold Energy Center, Palo, Iowa, during the period January - December, 2017. This Program monitors the levels of radioactivity in the air, terrestrial, and aquatic environments in order to assess the impact of the plant on its surroundings.

The REMP fulfills the requirements of Sections IV.B.2 and IV.B.3 of Appendix I to 10 CFR 50 for the operation of the plant. The REMP also fulfills the requirements of 10 CFR 72.44(d)(2) for operation of the ISFSI.

Tabulations of individual analyses made during the year are included in Part II of this report.

The Duane Arnold Energy Center (DAEC) is a boiling water reactor, located in Linn County, Iowa, on the Cedar River, and owned and operated by NextEra Energy Resources. Initial criticality was attained on March 23, 1974. The reactor reached 100% power on August 12, 1974. Commercial operation began on February 1, 1975.

2.0

SUMMARY

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

Results for the year 2017 are summarized and discussed.

Program findings show only background levels of radioactivity in the environmental samples collected in the vicinity of the Duane Arnold Energy Center.

No effect on the environment is indicated in the areas surrounding the site of the Duane Arnold Energy Center.

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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 Duane Arnold Energy Center (DAEC) is to assess the impact of the plant on its environment. For this purpose, samples are collected from the air, terrestrial, and aquatic environments and analyzed for radioactive content. In addition, ambient gamma radiation levels are monitored by thermoluminescent dosimeters (TLDs).

Sources of environmental radiation 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; and (4)

Industrial and medical radioactive waste.

In interpreting the data, effects due to the DAEC operation must be distinguished from those due to other sources.

A major interpretive aid in assessment of these effects is the design of the monitoring program at the DAEC which is based on the indicator-control concept. Most types of samples are collected both 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.

An additional interpretive technique involves analyses for specific radionuclides present in the environmental samples collected from the DAEC site. The DAEC's monitoring program includes analyses for strontium-90 and iodine-131, which are fission products, and tritium, which is produced by cosmic rays, atmospheric nuclear detonations, and also by nuclear power plants.

Most samples are also analyzed for gamma-emitting isotopes with results for the following groups quantified: zirconium-95, cesium-137, and cerium-144. These three gamma-emitting isotopes were 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 (10) days after reactor shutdown. On the other hand, ten (10) 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 (Eisen bud, 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 detonations. Nuclides of the final group, beryllium-?,

which is of cosmogenic origin, and potassium-40, a naturally-occurring isotope, were chosen as calibration monitors and provide a comparison between levels of naturally occurring radionuclides and radionuclides that could be attributed to the operation of the plant.

Characteristic properties of isotopes quantified in gamma-spectroscopic analysis are presented in Table 5.1. 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 those measured before the Plant became operational. Results of the DAEC's Monitoring Program 3

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., atmospheric nuclear detonations.

3.2 Program Description 3.2.1 Environmental Monitoring The sampling and analysis schedule for the Radiological Environmental Monitoring Program (REMP) at the DAEC is summarized in Table 5.2 and is briefly reviewed below. Table 5.3 defines the sampling location codes used in Table 5.2 and specifies for each location its distance, direction, and sector relative to the reactor site. The types of samples collected at each location and the frequency of collections are presented in Table 5.4 using codes defined in Table 5.5.

To monitor the air environment, a continuous air sampler is employed. Airborne particulates and activated charcoal canisters are mounted on the intake of the air sampler to collect airborne particulates and airborne iodine respectively. 2017 began with nine sampling locations. Eight of the nine locations are indicators and one is a control (D-13). Filters are changed and counted weekly. Particulate filters are analyzed for gross beta activity. If gross beta activity exceeds ten times the yearly mean of the control samples, gamma isotopic analysis is performed. Quarterly composites of airborne particulates from each location are analyzed for gamma emitting isotopes.

Charcoal canister samples are analyzed weekly for iodine-131.

Ambient gamma radiation is monitored at a total of 51 locations. A TLD is placed at each location and exchanged and analyzed quarterly. The TLD locations are distributed as follows:

Two on-site locations Eighteen in a circle within a 0.5 mi. radius from the DAEC stack.

Six in 22.5° sectors within 1 mi. from the DAEC stack.

Eleven in 22.5° sectors between 1 and 3 miles from the DAEC stack.

Ten control locations greater than 3 miles from the DAEC stack.

Four along sections of the Independent Spent Fuel Storage Installation (ISFSI) fence line.

Surface water is collected monthly from four river locations, D-49 (Lewis Access, Control, 4 mi.

upstream), D-50 (Inlet), D-51 (Discharge) and D-61 (downstream of Discharge) and also from Pleasant Creek Lake (D-99). The monthly samples are analyzed for tritium and gamma-emitting isotopes. Additional analyses are performed on samples collected from the control and indicator locations, D-49 and D-61. Analyses for low-level iodine-131 are performed on monthly collections and quarterly composites are prepared and analyzed for strontium-89 and strontium-90.

The aquatic environment is also monitored by upstream and downstream (D-49 and D-61) semiannual collections of fish.

River bottom sediment is collected semiannually at the plant's intake (D-49) and discharge (D-51) and the site's north drainage ditch (D-107a). The samples are analyzed for gamma-emitting isotopes.

Potable groundwater is collected monthly from the Cedar Rapids treated municipal water system (D-53), the inlet to the Cedar Rapids municipal water treatment system (D-54), three indicator locations (D-55, D-57, D-58) and one control location (D-72). The samples are analyzed for tritium and gamma emitting isotopes. Any positive identification of a reactor by-product material initiates analyses for hard to detect isotopes of Ni-63, Sr-89, Sr-90, Fe-55 and gross alpha. The samples are analyzed for tritium, 1-131 by chemical separation to an MDC of 1 pCi/L, and gamma emitting isotopes.

For 2017, dairy cow milk is collected monthly from one indicator (D-110) and one control location (D-138) from January to December. Monthly sampling was determined to be sufficient due to the milk sampling locations more than five miles from the facility. The samples are analyzed for iodine-131 and gamma-emitting isotopes.

This sampling is supplemented with goat's milk when available from indicator location (D-76).

4

Additional monitoring of the terrestrial environment, grain, hay, grass and broadleaf vegetation samples are collected annually, as available, from nine locations: one control (D-138) and eight indicators (D-16, D-57, D-96, D-109, D-110 and D-118). Grain, hay and broadleaf (green leafy) vegetation samples are analyzed for gamma-emitting isotopes and at least two broad leaf vegetation samples are analyzed for iodine-131. Vegetation control samples are purchased from local grocery and feed stores provided the sample source is outside the State of Iowa.

If any of the cattle grazing on-site are slaughtered for home use, a meat sample is collected. The sample is analyzed for gamma-emitting isotopes.

3.2.2 Groundwater Protection Program Environmental, Inc., Midwest Laboratory provides laboratory services for the Duane Arnold Energy Center Groundwater Protection Program (GWPP). The GWPP is formally included within REMP and the standards are set forth in the Duane Arnold Energy Center Offsite Dose Assessment Manual, Table 6.3-2. The Groundwater Protection Program encompasses activities to ensure the protection of groundwater within the owner controlled area by sampling the groundwater, soil, precipitation, electrical vault and sewage effluent. For sewage effluent results only, refer to the Duane Arnold Energy Center, 2017 Annual Radioactive Material Release Report and Appendix E of this report for groundwater, soil, electrical vault, and precipitation sample results.

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

(1) Airborne Particulates I Airborne Iodine:

Air particulate I air iodine sampling was affected by power outages at two locations during the year. In most cases the power issues resulted in lower sample volumes and in a couple of cases the power outages resulted in a failure to meet the required LLD for lodine-131. Details of the outages are listed in table 5.6. In summary location D-15 had a lower volume for the collections ending 5/5/17 and 7/7/17 resulting in a failure to reach the required LLD. Location D-40 had lower volume for the collection ending 6/2/17.

(2) Thermoluminescent Dosimetry TLD's were found missing for the second quarter at location D-86, the third quarter at location D-40 and at for the fourth quarter at location D-41. The cause for the losses are unknown but are believed to be due to theft or vandalism.

(3) Milk Goat's milk was unavailable at location D-76 due to limited herd production for the scheduled collections on 5/16/17, 6/8/17, 7/12/17, 8/8/17, 9/6/1710/10/17, 11/14/17 and 12/5/17.

(4) Well Water Well water was not available at locations D-52 for the 8/16/17 collection due to water source shutdown during the sampling period.

5

3.4 Laboratory Procedures The lodine-131 analyses in milk and water were made using a sensitive radiochemical procedure involving separation of iodine using an ion-exchange method, solvent extraction and subsequent beta counting. Levels of iodine-131 in vegetation and concentrations of airborne iodine-131 in charcoal samples were determined by gamma spectroscopy.

Gamma-spectroscopic analyses are performed using high-purity germanium (HPGe) detectors.

The gamma isotopic analysis provides a spectrum with an energy range from 80 to 2048 KeV.

Specific isotopes included in the gamma library are Mn-54, Fe-59, Co-58, Co-60, Zn-65, Zr-95, Nb-95, Ru-103, Ru-106, 1-131, Ba-La-140, Cs-134, Cs-137, Ce-141, and Ce-144. Naturally occurring gamma-emitters, such as Be-7, K-40 and Ra daughters, are frequently detected but may not be listed.

Tritium was measured by liquid scintillation spectrometry.

Analytical Procedures used by Environmental, Inc. are on file 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, 2017). The QA Program includes participation in lnterlaboratory Comparison (crosscheck) Programs. Results obtained in crosscheck programs are presented in Appendix A 3.5 Program Modifications There were a few changes to the REMP program in 2017. Air sampling location 5A was added to the program at the beginning of the year. Goat milk sampling was conducted at location D-76 when available. Milk sampling was modified to monthly sampling from January to December.

Also, well water sampling was initiated at location 0-52 during 2017. Lastly, the DAEC Groundwater Protection Program was formally included within REMP. REMP and GWPP standards and requirements can be found in the Duane Arnold Energy Center 2017 Annual Radiological Material Release Report in Attachment 2, Offsite Dose Assessment Manual.

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4.0 RES UL TS AND DISCUSSION All collections and analyses were made as scheduled, except for those listed in Table 5.6.

Results are summarized in Table 5.7 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.

Tabulated results of measurements are not included in this section, although reference to these results will be made in discussion. A complete tabulation of results for 2017 is contained in Part II of the Annual Report on the Radiological Environmental Monitoring Program for the Duane Arnold Energy Center.

4.1 Atmospheric Nuclear Detonations and Nuclear Accidents There were no reported accidents involving significant release to the environment at nuclear reactor facilities in 2017. The Fukushima Daiichi nuclear accident occurred March 11, 2011.

There were no reported atmospheric nuclear tests in 2017. The last reported test was conducted on October 16, 1980 by the People's Republic of China.

4.2 Program Findings Results obtained show background levels of radioactivity in the environmental samples collected outside of the Owner Controlled Area in 2017. The trace levels of cesium-137, still measurable in soil and sediments, are attributed to deposition of fallout from previous decades.

Airborne Particulates The average annual gross beta concentrations in airborne particulates were similar at indicator and control locations (0.028 and 0.025 pCi/m3, respectively) and similar to levels observed from 1995 through 2016. The results are tabulated below.

Year Indicators Controls Year Indicators Controls Concentration (pCi/m3)

Concentration (pCilml 2000 0.026 0.027 2009 0.031 0.030 2001 0.026 0.026 2010 0.028 0.028 2002 0.027 0.027 2011 0.030 0.029 2003 0.029 0.029 2012 0.030 0.029 2004 0.028 0.028 2013 0.028 0.025 2005 0.031 0.031 2014 0.026 0.025 2006 0.029 0.027 2015 0.027 0.024 2007 0.031 0.031 2016 0.027 0.023 2008 0.029 0.029 2017 0.028 0.025 Average annual gross beta concentrations in airborne particulates.

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4.2 Program Findings, Airborne Particulates (continued)

Gamma spectroscopic analysis of quarterly composites of air particulate filters yielded similar results for indicator and control locations. Beryllium-?,

produced continuously in the upper atmosphere by cosmic radiation (Arnold and Al-Salih, 1955), was detected in all samples, with an average activity of 0.080 pCi/m3 for indicator locations and 0.073 pCi/m3 for the control location.

No reactor by-product radionuclides were identified. All samples met required lower limits of detection as specified in the DAEC Offsite Dose Assessment Manual.

Airborne Iodine Levels of airborne iodine-131 measured below the required limit of 0.030 pCi/m 3 with the exception of samples collected at location D-15 for the week ending 5/5/17 and 7/7/17 due to power failures to the air sampling pumps.

Ambient Radiation (TLDs)

At ten control locations, thermoluminescent dosimeter (TLD) readings averaged 16.2 mR/quarter.

At locations within a half mile, one mile and three mile radius of the stack, the measurements averaged 18.3, 18.6 and 16.4 mR/quarter, respectively. The two on-site locations D-15 and D-16 averaged 16.5 and 15.4 mR/quarter respectively. These average measurements are similar to the estimated average natural background radiation for Middle America, 19.5 mR/quarter, which is based on data on Pages 71 and 108 of the report, "Natural Background Radiation in the United States" (National Council on Radiation Protection and Measurements, 1975). The terrestrial absorbed dose (uncorrected for structural and body shielding) ranges from 8.8 to 18.8 mrad/quarter and averages 11.5 mrad/quarter for Middle America. Cosmic radiation and cosmogenic radionuclides contribute 8.0 mrad/quarter for a total average of 19.5 mrad/quarter. No plant effect is indicated.

ISFSI Facility Operations Monitoring Four TLDs, placed directionally along the ISFSI fence line, averaged 49.0 mR/quarter. The TLD site D-30, located between the nearest residence and the ISFSI site averaged 20.7 mR/quarter.

Calculated dose rates indicate the site is in compliance with 10 CFR 72.104 and 40 CFR 190.

lodine-131 concentrations in milk samples were less than the LLD level of 1.0 pCi/L.

No gamma-emitting isotopes, excepting naturally occurring potassium-40, were detected in any milk samples. This is consistent with findings that most radiocontaminants in feed do not find their way into milk due to the selective metabolism of the cow. The common exceptions are radioisotopes of potassium, cesium, strontium, barium, and iodine (National Center for Radiological Health, 1968).

No reactor by-product radionuclides were identified. All samples met required lower limits of detection as specified in the DAEC Offsite Dose Assessment Manual.

Groundwater (potable)

Tritium concentrations in ground water samples were less than the MDC of 187 pCi/L in all samples analyzed. Gamma-emitting isotopes were below detection limits.

No reactor by-product radionuclides could be identified. All samples met required lower limits of detection as specified in the DAEC Offsite Dose Assessment Manual.

8

4.2 Program Findings (continued)

Vegetation lodine-131 concentrations in vegetation samples were less than the LLD level of 0.025 pCi/g wet weight in all samples analyzed.

With the exception of potassium-40, which was observed in all vegetation samples, all other gamma-emitting isotopes were below detection limits. No reactor by-product radionuclides were identified. All samples met required lower limits of detection as specified in the DAEC Offsite Dose Assessment Manual.

Surface Water Surface water was tested for tritium and gamma emitting isotopes in sixty samples from five locations. No measurable tritium activity was detected above an LLD of 183 pCi/L.

Analyses for 1-131 were performed on samples from locations D-49 (control) and D-61 (0.5 mi.

downstream, indicator). No measurable 1-131 was detected above an LLD of 0.5 pCi/L.

Quarterly composites were also prepared from the samples collected at locations D-49 and D-61 and tested for strontium-89 and strontium-90. All samples tested below detection limits.

No plant effect on surface water is indicated.

Fish were collected in June and August, 2017, and analyzed for gamma-emitting isotopes. With the exception of naturally-occurring potassium-40, no gamma-emitting isotopes were identified in edible portions of fish. The potassium-40 level was similar at both the indicator and control locations (2.95 and 3.05 pCi/g wet, respectively).

No reactor by-product radionuclides were identified. All samples met required lower limits of detection as specified in the DAEC Offsite Dose Assessment Manual.

River Sediments Six river sediments were collected in 2017 during the months of April and November, and analyzed for gamma-emitting isotopes. Potassium-40 activity ranged from 7.52 to 8.53 pCi/g dry weight at the indicator locations and between 7.88 and 9.20 pCi/g dry weight at the control location. Cs-137 was detected in one sample from the control location at a level of 0.079 pCi/gdry.

The source of the Cs-137 from the river bed sample upstream of the DAEC liquid effluent outfall is from nuclear weapons testing and not plant activities.

All samples met required lower limits of detection as specified in the DAEC Offsite Dose Assessment Manual.

4.3 Ground Water Protection Program Findings Environmental, Inc., Midwest Laboratory provides laboratory services for the Duane Arnold Energy Center Ground Water Protection Program except for sewage effluent results; refer to Appendix E.

Sewage effluent sample results can be found in the Duane Arnold Energy Center 2017 Annual Radiological Material Release Report.

Groundwater 351 groundwater samples (non-potable water) were collected from 56 permitted monitoring wells and three permitted extraction wells in 2017. Tritium was the only plant by-product identified.

Concentrations of tritium ranged from less than 145 pCi/L to 203, 138 pCi/L at D-128A, monitoring 9

well MW-OBA. An explanation of tritium mitigation can be found in the Duane Arnold Energy Center 2017 Radioactive Material Release Report. Tritium was not identified in any drinking water well on-site or at off-site wells. Tritium was not identified in any Cedar Rapids municipal drinking water sample. Lastly, the monitoring well farthest down gradient prior to reaching the boundary of the owner controlled area, MW-33A, did not indicate tritium above 177 pCi/L (+/- 86 pCi/L), which is within error limits for non-detectable range of fess than 146 pCi/L.

Seven soil samples were collected in 2017, two from D-15a and two from D-16. All four samples were positive for cesium-137 with an average level of 0.12 pCi/g dry weight. Due to these results, three additional samples were collected by the State of Iowa Hygienic Laboratory from Mason City, Ames and Coralville, Iowa. The results support the conclusion that the detected cesium-137 is from nuclear weapons testing and not from plant activities.

Precipitation 72 precipitation samples were collected in 2017 from six precipitation collection locations. Tritium was consistently identified at locations D-127 and D-128. The highest tritium concentration was 4,435 pCi/L from D-127. The proximity of the plant gaseous effluent release points coupled with atmospheric conditions enables recapture of gaseous effluent, specifically tritiated water vapor, to be entrained in precipitation and deposited within the protected area. Occasionally, tritiated precipitation collects in a basin or pit. This water is then sampled and released in accordance with the Offsite Dose Assessment Manual (ODAM), "Clean" system batch release of a liquid effluent as documented in ODAM, Table 7.1-2. The ODAM can be found as attachment two of the Duane Arnold Energy Center 2017 Annual Radiological Material Release Report.

Electrical Vaults 23 electrical vaults samples were collected in 2017 from nine electrical vaults. Electrical vaults are below grade structures designed for electrical cabling. Surface water and groundwater may seep into the vaults. Tritium concentrations range from less than 146 pCi/L to 3,174 pCi/L, which is consistent with rainfall recapture of tritiated water vapor from plant gaseous effluent release points.

Storm Drains, Sluice Pond, and Drainage Ditches.

13 samples were collected in 2017 from storm drains, sluice ponds and drainage ditches. Surface water sampling from these locations is consistent with non-point source runoff sampling activities.

Similar to electrical vaults, tritium recapture is the source for tritium identified with the maximum concentration of 1)19 pCi/L from D-125.

10

5.0 TABLES AND FIGURES 11

Table 5.1 Characteristic properties of isotopes quantified in gamma-spectroscopic analyses.

Designation Comment Isotope Half-life a Naturally Occurring A. Cosmogenic Produced by interaction with atmosphere of cosmic rays Be-7 53.2 d B. Terrestrial Primordial K-40 1.26x109 y fl.

Fission Products b Nuclear accidents and detonations constitute the major environmental source.

A. Short-lived 1-131 8.04 d Ba-140 12.8 d B. Other than Short-lived Nb-95 35.15 d Zr-95 65 d Ru-103 39.35 d Ru-106 368.2 d Cs-134 2.061 y Cs-137 30.174 y Ce-141 32.5 d Ce-144 284.31 d Ill. Activation Products Typically found in nuclear power plant Mn-54 312.5 d effluents Fe-59 45.0 d Co-58 70.78 d Co-60 5.26 y Zn-65 245 d Half-Jives are taken from Appendix E of Environmental Quarterly, 1 January 1978, EML-334 (U. S. Department of Energy, 1978).

Includes fission-product daughters.

12

Table 5.2 Sample collection and analysis program.

Exposure Sample Description Pathway and/or Point Sample Type Airborne Particulates Airborne Iodine Ambient Radiation 3

5A 6

7 11 13 15 16 40 3

5A 6

7 11 13 15 16 40 1-3, 5A, 6-8 10, 11, 13 15-23, 28-32, Hiawatha Paloc Center Point Shellsburg Toddville Alburnett (C)

On-site North On-site South Wickiup Hill Hiawatha Paloc Center Point Shellsburg Toddville Alburnett (C)

On-site North On-site South Wickiup Hill (Controls)

(Controls)

(Indicators)

Within 0.5 mile of Stack 33-42 Within 3.0 miles of Stack 43-48 Within 1.0 mile of 82-86, 91 Stack 161-164 ISFSI Fence line Sampling Location a Sampling and Collection Frequency Continuous operation of sampler with sample collection at least once per week or as required by dust loading Continuous operation of sampler with sample collection at least once per week.

One dosimeter continuously at each location.

Dosimeters are changed at least quarterly.

Surface Water 49 Lewis Access (C)

Once per month.

50 Plant Intake 51 Plant Discharge 61

- Yz mi. downstream from Plant Discharge 99 Pleasant Creek Lake 13 Type and Frequency of Analysis b Analyze for gross beta activity more than 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> after filter change.

Perform gamma isotopic analysis on each sample having gross beta activity greater than ten times the yearly mean of the control samples.

Composite weekly samples to form a quarterly composite (by location).

Analyze quarterly composite for gamma isotopic.

Analyze each cartridge for iodine-131.

Read gamma radiation dose quarterly.

Gamma isotopic and tritium analysis for each sample (by location).

Locations 49 and 61, analyses for low-level 1-131. Quarterly composites for Sr-89, Sr-90.

Table 5.2 Sample collection and analysis program, (continued).

Sampling Location a Exposure Sample Description Sampling and Collection Type and Frequency Pathway and/or Point Frequency of Analysis b Sample Type Ground 53 Treated Municipal Grab sample at least Analysis gamma emitting isotopes, Water Water once per quarter iodine-131 and tritium on quarterly 54 Inlet to Municipal Water samples.

Treatment System 55 On-site well If reactor by-product gamma 57,58 Wells off-site and emitters are identified, or if tritium 72 (C) within 4 km of DAEC concentrations measure > MDA, then analyze for Ni-63, Sr-89, Sr-90 and alpha emitters.

River 49 Lewis Access At least once every six Gamma isotopic analysis of each Sediment months.

sample 50 Plant Intake (C) 51 Plant Discharge 107a North Drainage Ditch (on-site)

Vegetation 16,57 Farms raising food Annually at harvest Gamma isotopic analysis, 56 crops time. Two samples of including iodine-131, on each 96,109 each: grain, green leafy, sample.

110,118 and forage.

138 (C)

Fish 49 Cedar River upstream One sample per 6 Gamma isotopic analysis on edible ofDAEC not months (once during portions.

influenced by effluent January through June (C) and once during July through December).

56 Downstream of DAEC 61 in influence of effluent Milk 138 (C)

Farm near Newhall, IA Monthly.

Gamma isotopic and iodine-131 analyses of each sample.

110 Dairy Farm within 7.8 Monthly.

miles from Site 76 Goat Farm ENE of site.

Monthly depending on availablity.

(C) denotes control location. All other locations are indicators.

b Gamma isotopic analysis and analysis for gamma-emitting nuclides refer to high resolution gamma ray spectrum analysis.

14

Table 5.3 Sampling locations, Duane Arnold Energy Center.

Sampling Location Code Location Description Distance and Direction from Site Stack D-1 Cedar Rapids 20,800 meters SE D-2 Marion 16,900 meters ESE D-3 Hiawatha 10,800 meters SE D-5 Palo 4,500 meters SSW D-5A Palo 3,470 meters SSW D-6 Center Point 9,660 meters N D-7 Shellsburg 7,950 meters W D-8 Urbana 15,000 meters NNW D-10 Atkins 13,600 meters SSW D-11 Toddville 4,980 meters E D-13 Alburnett 14,500 meters ENE D-15 On-site, North-Northwest 1,050 meters NNW D-16 On-site, South-Southeast 520 meters SSE D-17 On-site, N 1,050 meters N D-18 On-site, NNE 630 meters NNE D-19 On-site, NE 590 meters NE D-20 On-site, ENE 550 meters ENE D-21 On-site, ENE 515 meters ENE D-22 On-site, ESE 535 meters ESE D-23 On-site, SE 490 meters SE D-28 On-site, WSW 730 meters WSW D-29 On-site, W 630 meters W D-30 On-site, WNW 640 meters WNW D-31 On-site, NW 1,020 meters NW 0-32 Ori-site, NNW 1,110 meters NNW 0-33 3 mile rinQ 4,340 meters N 0-34 3 mile rinq 3,930 meters NNE 0-35 3 mile ring 2,800 meters NE 0-36 3 mile ring 3,500 meters ENE 0-37 3 mile rinq 2,960 meters E 0-38 3 mile ring 3, 180 meters ESE 0-39 3 mile rinq 2,510 meters SE 0-40 3 mile ring 2,430 meters SSE 0-41 3 mile ring 5,680 meters S 0-42 3 mile rinq 4,380 meters SSE D-43 1 mile rinq 1,590 meters SSW 0-44 1 mile ring 1,580 meters WSW 0-45 1 mile rinq 1,420 meters W 0-46 1 mile rinq 1,580 meters WNW 0-47 1 mile ring 1, 760 meters NW 0-48 1 mile rinq 1,680 meters NNW 15

Table 5.3 Sampling locations, Duane Arnold Energy Center (continued).

Sampling Location Code Location Description Distance and Direction from Site Stack D-49 Lewis Access, upstream of DAEC 6,750 meters NNW D-50 Plant Intake 560 meters SE D-51 Plant Dischame 600 meters SE D-53 Treated Municipal Water 13,900 meters SE D-54 Inlet, Municipal Water Treatment System 13,900 meters SE D-55 Production Well Production wells A-D D-56 Control samples from various locations Sample location varies D-57 Farm (Off-site Well) 805 meters W D-58 Farm (Off-site Well) 97 4 meters WSW-SW D-61 Downstream of plant discharqe 670 meters SSE D-72 Farm 3,200 meters SSW D-82 On-site, SSE 660 meters SSE D-76 Farm 2,888 meters ENE D-83 On-site, SSE 620 meters SSE D-84 On-site, S 610 meters S D-85 On-site, SSW 660 meters SSW D-86 On-site, SW 850 meters SW D-91 On-site, NNW 1,090 meters NNW D-96 Farm 11,400 meters SSW D-99 Pleasant Creek Lake 3,880 meters WNW D-107a North Drainaqe Ditch On-site D-109 Farm 5,890 meters SW D-110 Farm 12,700 meters SW D-118 Farm 2,230 meters NW D-138 Farm 21,600 meters WSW D-161 ISFSI Fence East On-site D-162 ISFSI Fence South On-site D-163 ISFSI Fence West On-site D-164 ISFSI Fence North On-site 16

Table 5.4 Type and Frequency of collection.

Location Weekly Monthly Quarterly Semiannually Annually D-1 TLD D-2 TLD D-3 AP,AI TLD 0-5A AP,AI TLO D-6 AP,AI TLD D-7 AP,AI TLD D-8 TLD D-10 TLD 0-11 AP,AI TLD 0-13 AP,AI TLD D-15 AP,AI TLD 0-16 AP,AI TLD G

D-17 to D-23 TLD 0-28 to 0-39 TLD 0-40 AP,AI TLD D-41 to 0-48 TLO 0-49 SW F

D-50 SW BS D-51 SW BS D-53 WW 0-54 WW D-55 WW 0-56 D-57 WW G

0-58 WW 0-61 SW F

D-72 WW 0-76 Ml.

0-82 to 0-86 TLO 0-91 TLO D-96 G

D-99 SW D-107A BS D-109 G

D-110 Ml D-118 G

D-138 Ml G

D-161 to D-164 TLD On-site

Goat's milk sampled when available.

17

Table 5.5. Sample codes used in Table 5.4 and Table 5.6.

Code Description AP Airborne Particulates Al Airborne Iodine TLD Thermoluminescent Dosimeter Ml Milk WW Well Water G

Vegetation ME Meat SW Surface Water F

Fish BS River Sediment 18

Table 5.6. Program Deviations, Duane Arnold Energy Center.

Sample Collection Date Type Analysis Location( s) or Period Comments AP/Al Gross Beta/ 1-131 D-15 05/05/17 Low volume of 91 m3 due to power outage; storms in area.

Milk 1-131/Gamma D-76 05/16/17 Goat's milk unavailable due to limited herd production.

AP/Al Gross Beta/ 1-131 D-40 06/02/17 Low volume of 80 m3 due to power outage.

Milk 1-131/Gamma D-76 06/08/17 Goat's milk unavailable due to limited herd production.

TLD Gamma D-86 06/29/17 TLD missing in field.

AP/Al Gross Beta/ J-131 D-15 07/07/17 Low volume of 2 m3 due to power outage; not enough for viable sample results.

Milk 1-131/Gamma D-76 07/12/17 Goat's milk unavailable due to limited herd production.

Milk 1-131/Gamma D-76 08/08/17 Goat's milk unavailable due to limited herd production.

WW H-3/1-131/Gamma D-52 08/16/17 No sample sent due to water source shutdown during sampling period.

Milk 1-131/Gamma D-76 09/06/17 Goat's milk unavailable due to limited herd production.

TLD Gamma D-40 10/02/17 TLD missing in field.

Milk 1-131/Gamma D-76 10/10/17 Goat's milk unavailable due to limited herd production.

Milk 1-131/Gamma D-76 11/14/17 Goat's milk unavailable due to limited herd production.

Milk 1-131/Gamma D-76 12/05/17 Goat's milk unavailable due to limited herd production.

TLD Gamma D-41 01/05/18 TLD missing in field.

19

Table 5.7 Radiological Environmental Monitoring Program Summary.

Name of Facility Location of Facility Sample Type and Type Number of (Units)

Analyses a Airborne GB 416 Particulates (pCi/m 3>

GS 36 Be-7 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 Airborne Iodine 1-131 416 (pCi/m3>

TLDs (m R/quarter)

Control Locations Gamma 40 Within 0.5 mi.

Gamma 80 of Stack Within 1.0 mi.

Gamma 23 of Stack Within 3.0 mi.

Gamma 40 of Stack ISFSI border Gamma 14 Duane Arnold Energy Center Docket No.

50-331 Linn, Iowa Reporting Period January-December, 2017 (County, State)

Indicator Location with Highest Control Number Locations Annual Mean Locations Non-LLD b Mean (F) c Mean (F) c Mean (F) c Routine Range c Location d Range c Range c Results Airborne Pathway 0.003 0.028 (415/415)

D-07, 0.029 (52/52) 0.025 (52/52) 0 (0.010-0.056)

Shellsburg (0.010-0.060)

(0.011-0.052) 0,020 0.080 (32/32)

D-3, Hiawatha 0.089 (4/4) 0.073 (4/4) 0 (0.007-0.062)

(0.070-0.107)

(0.050-0.093) 0.0015

<LLD

<LLD 0

0.0037

<LLD

<LLD 0

0,0013

<LLD

<LLD 0

0.0012

<LLD

<LLD 0

0.0046

<LLD

<LLD 0

0.0025

<LLD

<LLD 0

0.0027

<LLD

<LLD 0

0,0024

<LLD

<LLD 0

0.0117

<LLD

<LLD 0

0.0015

<LLD

<LLD 0

0.0012

<LLD

<LLD 0

0.0034

<LLD

<LLD 0

0.0067

<LLD

<LLD 0

0.030

<LLD

<LLD 0

Direct Radiation 1.0 None D-5A Palo 18.9 (4/4) 16.2 (40/40) 0 SSW (16.4-19.1)

(13.1-22.1) 1.0 1a.3(79/79)

D-29,0n-site 21.8 (4/4)

None 0

(12.7-23.4) 0.5mi.W (20.2-23.6) 1.0 18.6 (24/24)

D-48, 21.8 (4/4)

None 0

(14.5-24.1) 1mi.NNW (20.7-22.7) 1.0 16.4 (40/40)

D-37, E 19.1 (4/4)

None 0

(12.7-21.0)

(18.0-21.0) 1.0 32.2(14/14 D-161 49.0 (414)

None 0

(16.8-56.2))

20

Table 5.7 Radiological Environmental Monitoring Program Summary.

Name of Facility Location of Facility Sample Type and Type Number of IUnitsl Analyses a Surface Water H-3 (pCi/L) 1-131 Sr-89 Sr-90 GS Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 Sediments GS (pCi/g dry)

K-40 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 60 24 8

8 60 6

Duane Arnold Energy Center Linn, Iowa (County, State)

Indicator Locations LLD b Mean (F) c Range c Waterborne 183

<LLD 1.0

<LLD 0.86

<LLD 0.73

<LLD 6.1

<LLD 8.3

<LLD 5.2

<LLD 5.0

<LLD 9.2

<LLD 4.8

<LLD 8.1

<LLD 9.1

<LLD 6.3

<LLD 5.3

<LLD 24.3

<LLD 12.5

<LLD 1.0 8.14 (4/4)

(7.52-8.53) 0.028

<LLD 0.072

<LLD 0.023

<LLD 0.020

<LLD 0.052

<LLD 0.036

<LLD 0.035

<LLD 0.166

<LLD 0.023

<LLD 0.029

<LLD 0.066

<LLD 0.178

<LLD 20 Docket No.

50-331 Reporting Period January-December, 2017 Location with Highest Control Number Annual Mean Locations Non-Mean (F) c Mean (F) c Routine Location d Range c Range c Results Pathway

<LLD 0

D-49, 8.54(2/2) 8.54 (2/2) 0 Lewis Access (7.88-9.20)

(7.88-9.20)

Upstream

<LLD 0

Table 5.7 Radiological Environmental Monitoring Program Summary.

Name of Facility Location of Facility Sample Type and Type Number of (Units)

Analyses a Ground Water, 1-131 1 24 potable (pCi/L)

H-3 24 GS 24 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 Milk 1-131 27 (pCi/L)

GS 27 K-40 Cs-134 Cs-137 Ba-140 La-140 Broadleaf GS 3

Vegetation K-40 (pCi/gwet)

Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 Ru-103 Ru-106 1-131 Cs-134 Cs-137 Ce-141 Ce-144 Duane Arnold Enemy Center Linn, Iowa (County, State)

Indicator Locations LLD b Mean (F) c Range c Waterborne 0,5

<LLD 187

<LLD 5.4

<LLD 8.9

<LLD 6.8

<LLD 5.6

<LLD 8.3

<LLD 5.6

<LLD 9.2

<LLD 11.4

<LLD 6.4

<LLD 30.3

<LLD 7.9

<LLD Docket No.

Reporting Period Location with Highest Annual Mean Mean (F) c Location d Range c Pathway Ingestion Pathway 0.5

<LLD 100 1478(15/15)

D-76, Farm 1653(3/3)

(1271-1814) 13.4mi. WSW (1450-1814) 5

<LLD 5

<LLD 60

<LLD 5

<LLD 0.05 3.61 (8/8)

D-96, Farm 5.28 (2/2)

(1.93-4.94) 7.1 mi. SSW (2.19-8.36) 0.017

<LLD 0.032

<LLD 0.016

<LLD 0.015

<LLD 0.035

<LLD 0.016

<LLD 0.025

<LLD 0.015

<LLD 0.162

<LLD 0.025

<LLD 0.020

<LLD 0.029

<LLD 0.097

<LLD 21 50-331..

January-December, 2017 Control Number Locations Non-Mean (F) c Routine Range c Results 0

<LLD

<LLD 0

1399(12/12) 0 (1291-1560)

<LLD 0

1.82 (1/1) 0 none 0

none 0

Table 5.7 Radiological Environmental Monitoring Program Summary.

Duane Arnold Energy Center 50-331 Name of Facility Location of Facility Linn, Iowa Docket No.

Reporting Period January-December, 2017 (County, State)

Indicator Location with Highest Control Sample Type and Locations Annual Mean Locations Type Number of LLD b Mean (F) c Mean (F) c Mean (F) c (Units)

Analyses*

Range c Location d Range c Range c Ingestion Pathway (cont.)

13 GS Vegetation K-40 0.5 11.87 (10/10)

D-110 23.42 (1/1) 14.18 (3/3)

(Grain and Forage)

(2.34-28.94)

(2.57-25.91)

(pCi/g wet)

Mn-54 0.044

<LLD

<LLD Fe-59 0.138

<LLD

<LLD Co-58 0.041

<LLD

<LLD Co-60 0.033

<LLD

<LLD Zn-65 0.080

<LLD

<LLD Nb-95 0.035

<LLD

<LLD Zr-95 0.060

<LLD

<LLD Ru-103 0.029

<LLD

<LLD Ru-106 0.364

<LLD

<LLD 1-131 0.055

<LLD

<LLD Cs-134 0.047

<LLD

<LLD Cs-137 0.046

<LLD

<LLD Ce-141 0.138

<LLD

<LLD Ce-144 0.372

<LLD

<LLD Fish GS 8

(pCi/g wet)

K-40 1.0 2.95 (4/4)

D-61, Downstream, 3.05 (4/4) 3.05 (4/4)

(2.80-3.03) 0.4 mi. SSE (2.65-3,62 (2.65-3.62)

Mn-54 0.056

<LLD

<LLD Fe-59 0.160

<LLD

<LLD Co-58 0.080

<LLD

<LLD Co-60 0.034

<LLD

<LLD Zn-65 0.078

<LLD

<LLD Nb-95 0.084

<LLD

<LLD Zr-95 0.117

<LLD

<LLD Ru-103 0.100

<LLD

<LLD Ru-106 0.427

<LLD

<LLD Cs-134 0.054

<LLD

<LLD Cs-137 0.050

<LLD

<LLD Ce-141 0.111

<LLD

<LLD Ce-144 0.265

<LLD

<LLD a GB = Gross beta; GS = Gamma spectroscopy b LLD = Nominal lower limit of detection based on 4.66 sigma counting error for the background sample.

c Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parentheses (F).

d Locations are specified by: (1) Name and code (Table 5.3); and (2) distance, direction and sector relative to reactor site.

e Non-routine results are those which exceed ten times the control station value for the location. If a control station value is not available, the result is considered non-routine if it exceeds ten times the preoperational value for the location.

22 Number Non-Routine Results e 0

0 0

0

Figure 5.1 Radiological Environmental Monitoring Program Sampling Stations near the Duane Arnold Energy Center.

+

N I

Figure 5".1 Environmental Monitoring Programs Sampling Near the Duai1e AmoldEnergy Center I a2 I

I I

31 I

I I

I

m.

I I

I

."!fl I

I I

l.a []

~- ------------

-im GATE 2000foot 6!

107 n:1..

113 DAEC See Table 5.3 for sampling locations and Table 5.4 for Type and Frequency of collection.

23

~

N

Figure 5.2. Radiological Environmental Monitoring Program Sampling Stations Outside 0.5 Miles.

Figure5-2 Radiological Environmental Monitoring Program Sampling Stations Outside 0.5 Miles from DAEC 110 ATK!Nfl 810 04 00 10 Ml ER 10!ii' 0511 PALO~

CEDAA RAFiDS See Table 5.3 for sampling locations and Table 5.4 for Type and Frequency of collection.

24

6.0 REFERENCES

CITED Arnold, J. R. and H. A. Al-Salih. 1955. Beryllium-? 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.

___ 2015 Study Plan, SP-DAEC-8001, revision 24 February 12, 2015, The Operational Radiological Environmental Monitoring Program for the Duane Arnold Energy Center, Cedar Rapids, Iowa

___ 2001 through 2015. Environmental Radiological Monitoring Program for the Duane Arnold Energy Center, Annual Report - Part II, Data Tabulations and Analyses, January-December, 2001 - 2015.

____ 1984 to 2000. (formerly Teledyne Brown Engineering, Environmental Services, Midwest Laboratory)

Environmental Radiological Monitoring Program for the Duane Arnold Energy Center, Annual Report

- Part II, Data Tabulations and Analyses, January-December, 1983 -1999.

____ 1982 to 1984. (formerly Hazleton Environmental Sciences Corporation) Environmental Radiation Monitoring for the Duane Arnold Energy Center, Annual Report - Part II, Data Tabulations and Analyses, January-December 1981 - 1983.

____ 2017.

Quality Manual, Rev. 4, 19 June 2017.

____ 2012.

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

____ 2016.

Quality Control Procedures Manual, Rev. 3, 03 March 2016.

____.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.

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

U. S. Department of Energy. 1978. Environmental Quarterly, Appendix E. Half-Life Tables, 1 January 1978, EML-334.

U. S. Nuclear Regulatory Commission. 1977.

Regulatory Guide 1.109, Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 1 OCFR Part 50, Appendix I.

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

25

ATI Environmental, Inc.

/"'\\I Midwest Laboratory 700 1..-.ndwehr Ro*d, Northbrook, IL 60062-2310 phone (OH) 56~ *0700

, fax (8 ~ 7) S6H 517 DUANE ARNOLD ENERGY CENTER CEDAR RAPIDS, IOWA Docket No. 50-331 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM (REMP)

ANNUAL REPORT - PART II DATA TABULATIONS AND ANALYSES Reviewed and Approved January 1 to December 31, 2017 Prepared by ATI ENVIRONMENTAL, Inc.

Midwest Laboratory Project No. 8001

TABLE OF CONTENTS Section Page List of Tables............................................................................................................... iii

1.0 INTRODUCTION

......................................................................................................... iv 2.0 PROGRAM DEVIATIONS............................................................................................. v 3.0 DATA TABLES............................................................................................................. vi ii

LIST OF TABLES No.

1 Airborne particulates and iodine, Location D-3, analyses for gross beta and iodine-131.......... 1-1 2

Airborne particulates and iodine, Location D-5A, analyses for gross beta and iodine-131........ 2-1 3

Airborne particulates and iodine, Location D-6, analyses for gross beta and iodine-131.......... 3-1 4

Airborne particulates and iodine, Location D-7, analyses for gross beta and iodine-131.......... 4-1 5

Airborne particulates and iodine, Location D-11, analyses for gross beta and iodine-131......... 5-1 6

Airborne particulates and iodine, Location D-13, analyses for gross beta and iodine-131......... 6-1 7

Airborne particulates and iodine, Location D-15, analyses for gross beta and iodine-131......... 7-1 8

Airborne particulates and iodine, Location D-16, analyses for gross beta and iodine-131......... 8-1 9

Airborne particulates and iodine, Location D-40, analyses for gross beta and iodine-131......... 9-1 10 Airborne particulate composite samples, analysis for gamma-emitting isotopes................... 10-1 11 Ambient gamma radiation by thermoluminescent dosimeters (TLD), quarterly exposure......... 11-1 12 Milk samples, analysis for iodine-131 and gamma emitting isotopes................................... 12-1 13 Ground water, Area wells, analysis for gross beta, tritum and gamma-emitting Isotopes...................................................................................................................................... 13-1 14 Vegetation samples (broadleaf), analysis for iodine-131 and gamma-emitting isotopes........................................................................................... 14-1 15 Vegetation samples (hay and grain), analysis for iodine-131 and gamma-emitting isotopes........................................................................................... 15-1 16 Surface water samples, analysis for tritium and gamma-emitting isotopes........................... 16-1 17 Surface water composites, analysis for strontium-89 and strontium-90................................ 17-1 18 Fish samples, analysis for gamma-emitting isotope........................................................ 18-1 19 River sediment samples, analysis for gamma-emitting isotope.......................................... 19-1 20 Soil samples, analysis for Sr-90, tritium and gamma-emitting isotopes.......................................................................................... 20-1 21 Supplemental Soil samples, analysis for Sr-90, tritium and gamma-emitting isotopes.......................................................................................... 21-1 22 Groundwater Protection Program................................................................................ 22-1 iii

1.0 INTRODUCTION

The following constitutes a supplement to the Annual Report for the Radiological Environmental Monitoring Program conducted at the Duane Arnold Energy Center, Palo, Iowa in 2017. Results of completed analyses are presented in the attached tables.

For information regarding sampling locations, type and frequency of collection, and sample codes, please refer to Part I, Tables 5.3 - 5.5 and Figures 5.1 and 5.2.

All concentrations, except gross beta and airborne iodine, are decay corrected to the time of collection. Airborne 1-131 is decayed to the midpoint of the collection period.

The required values for lower limits of detection (LLD) for gamma emitting isotopes are established through the Offsite Dose Assessment Manual (ODAM). Naturally occurring radioisotopes, such as Be-7, K-40 and Ra daughters, are frequently detected, but may not be listed for every sample medium.

iv

2.0 PROGRAM DEVIATIONS Sample Collection Date Type Analysis Location(s) or Period Comments AP/Al Gross Beta/ 1-131 D-15 05/05/17 Low volume of 91 m 3 due to power outage; storms in area.

Milk 1-131/Gamma D-76 05/16/17 Goat's milk unavailable due to limited herd production.

AP/Al Gross Beta/ 1-131 D-40 06/02/17 Low volume of 80 m3 due to power outage.

Milk 1-131/Gamma D-76 06/08/17 Goat's milk unavailable due to limited herd production.

TLD Gamma D-86 06/29/17 TLD missing in field.

AP/Al Gross Beta/ 1-131 D-15 07/07/17 Low volume of 2 m3 due to power outage; not enough for viable sample results.

Milk 1-131/Gamma D-76 07/12/17 Goat's milk unavailable due to limited herd production.

Milk 1-131/Gamma D-76 08/08/17 Goat's milk unavailable due to limited herd production.

WW H-3/1-131/Gamma D-52 08/16/17 No sample sent due to water source shutdown during sampling period.

Milk 1-131/Gamma D-76 09/06/17 Goat's milk unavailable due to limited herd production.

TLD Gamma D-40 10/02/17 TLD missing in field.

Milk 1-131/Gamma D-76 10/10/17 Goat's milk unavailable due to limited herd production.

Milk 1-131/Gamma D-76 11/14/17 Goat's milk unavailable due to limited herd production.

Milk 1-131/Gamma D-76 12/05/17 Goat's milk unavailable due to limited herd production.

TLD Gamma D-41 01/05/18 TLD missing in field.

v

3.0 DATA TABLES vi

Table 1. Airborne particulates and charcoal canisters, analyses for gross beta and iodine-131 *.

Location: D-3 (Hiawatha)

Units: pCi/m3 Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (m")

Gross Beta Collected (m")

Gross Beta Required LLD 0.010 Required LLD 0.010 01-05-17 238 0.030 +/- 0.004 07-07-17 285 0.041 +/- 0.004 01-12-17 272 0.051 +/- 0.005 07-14-17 285 0.025 +/- 0.004 01-20-17 315 0.038 +/- 0.004 07-21-17 288 0.031 +/- 0.004 01-26-17 232 0.030 +/- 0.005 07-28-17 285 0.028 +/- 0.004 02-02-17 276 0.025 +/- 0.004 08-04-17 285 0.029 +/- 0.004 02-10-17 314 0.034 +/- 0.004 08-11-17 284 0.030 +/- 0.004 02-17-17 274 0.025 +/- 0.004 08-18-17 288 0.030 +/- 0.004 02-24-17 273 0.032 +/- 0.004 08-25-17 283 0.031 +/- 0.004 03-03-17 273 0.034 +/- 0.004 09-01-17 286 0.033 +/- 0.004 03-10-17 276 0.020 +/- 0.004 09-08-17 287 0.036 +/- 0.004 03-17-17 271 0.022 +/- 0.004 09-15-17 285 0.056 +/- 0.005 03-24-17 276 0.027 +/- 0.004 09-22-17 285 0.040 +/- 0.004 03-30-17 247 0.019 +/- 0.004 09-29-17 274 0.047 +/- 0.005 1st Quarter Mean+/- s.d.

0.030 +/- 0.009 3rd Quarter Mean +/- s.d.

0.035 +/- 0.009 04-07-17 332 0.015 +/- 0.003 10-06-17 276 0.030 +/- 0.004 04-13-17 253 0.026 +/- 0.004 10-13-17 271 0.027 +/- 0.004 04-20-17 292 0.023 +/- 0.004 10-20-17 275 0.032 +/- 0.004 04-28-17 330 0.016 +/- 0.003 10-27-17 275 0.021 +/- 0.004 11-03-17 274 0.020 +/- 0.004 05-05-17 290 0.017 +/- 0.003 05-12-17 292 0.025 +/- 0.004 11-10-17 273 0.038 +/- 0.004 05-19-17 292 0.024 +/- 0.004 11-17-17 274 0.040 +/- 0.005 05-26-17 289 0.014 +/- 0.003 11-22-17 196 0.035 +/- 0.005 06-02-17 294 0.015 +/- 0.003 12-01-17 351 0.025 +/- 0.003 06-09-17 290 0.026 +/- 0.004 12-08-17 273 0.041 +/- 0.005 06-16-17 295 0.029 +/- 0.004 12-14-17 236 0.040 +/- 0.005 06-23-17 287 0.025 +/- 0.004 12-22-17 317 0.039 +/- 0.004 06-30-17 286 0.016 +/- 0.003 12-29-17 275 0.039 +/- 0.005 2nd Quarter Mean+/- s.d.

0.021 +/- 0.006 4th Quarter Mean +/- s.d.

0.033 +/- 0.007 Cumulative Average 0.030 a lodine-131 concentrations are< 0.03 pCi/m3 unless noted otherwise.

1-1

Table 2. Airborne particulates and charcoal canisters, analyses for gross beta and iodine-131 *.

Location: D-5A (Palo)

Units: pCi/m3 Collection: Continuous, weekly exchange.

Date Volume Collected (m")

Gross Beta Required LLD 0.010 01-05-17 247 0.031 +/- 0.004 01-12-17 283 0.052 +/- 0.005 01-20-17 318 0.031 +/- 0.004 01-26-17 241 0.033 +/- 0.005 02-02-17 279 0.027 +/- 0.004 02-10-17 318 0.034 +/- 0.004 02-17-17 277 0.028 +/- 0.004 02-24-17 276 0.035 +/- 0.004 03-03-17 284 0.025 +/- 0.004 03-10-17 280 0.022 +/- 0.004 03-17-17 274 0.028 +/- 0.004 03-24-17 276 0.028 +/- 0.004 03-30-17 240 0.018 +/- 0.004 1st Quarter Mean+/- s.d.

0.030 +/- 0.008 04-07-17 314 0.015 +/- 0.003 04-13-17 242 0.021 +/- 0.004 04-20-17 277 0.023 +/- 0.004 04-28-17 315 0.018 +/- 0.003 05-05-17 273 0.017 +/- 0.003 05-12-17 280 0.022 +/- 0.004 05-19-17 282 0.022 +/- 0.003 05-26-17 272 0.015 +/- 0.003 06-02-17 275 0.017 +/- 0.003 06-09-17 273 0.027 +/- 0.004 06-16-17 277 0.027 +/- 0.004 06-23-17 271 0.022 +/- 0.004 06-30-17 275 0.017 +/- 0.003 2nd Quarter Mean +/- s.d.

0.020 +/- 0.004 a Jodine-131 concentrations are < 0.03 pCi/m3 unless noted otherwise.

b Filter light.

2-1 Date Volume Collected (m")

Required LLD 07-07-17 285 07-14-17 289 07-21-17 283 07-28-17 285 08-04-17 286 08-11-17 285 08-18-17 284 08-25-17 282 09-01-17 285 09-08-17 288 09-15-17 284 09-22-17 285 09-29-17 285 3rd Quarter Mean+/- s.d.

10-06-17 272 10-13-17 270 10-20-17 273 10-27-17 271 11-03-17 268 11-10-17 273 11-17-17 272 11-22-17 193 12-01-17 348 12-08-17 270 12-14-17 234 12-22-17 312 12-29-17 269 4th Quarter Mean+/- s.d.

Cumulative Average Gross Beta 0.010 0.041 +/- 0.004 0.026 +/- 0.004 0.030 +/- 0.004 0.023 +/- 0.004 0.011 +/- 0.003 0.031 +/- 0.004 0.025 +/- 0.004 0.027 +/- 0.004 0.028 +/- 0.004 0.031 +/- 0.004 0.060 +/- 0.005 0.036 +/- 0.004 0.037 +/- 0.004 0.031 +/- 0.011 0.025 +/- 0.004 0.025 +/- 0.004 0.033 +/- 0.004 0.021 +/- 0.004 0.019 +/- 0.004 0.036 +/- 0.004 0.045 +/- 0.005 0.045 +/- 0.006 0.034 +/- 0.004 0.041 +/- 0.005 0.028 +/- 0.004 0.045 +/- 0.004 0.037 +/- 0.005 0.033 +/- 0.009 0.029

Table 3. Airborne particulates and charcoal canisters, analyses for gross beta and iodine-131 *.

Location: D-6 (Center Point)

Units: pCi/m3 Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (m")

Gross Beta Collected (m")

Gross Beta Required LLD 0.010 Required LLD 0.010 01-05-17 267 0.030 +/- 0.005 07-07-17 277 0.026 +/- 0.004 01-12-17 264 0.048 +/- 0.005 07-14-17 276 0.023 +/- 0.004 01-20-17 405 0.033 +/- 0.004 07-21-17 279 0.012 +/- 0.003 01-26-17 270 0.034 +/- 0.005 07-28-17 276 0.024 +/- 0.004 02-02-17 284 0.023 +/- 0.004 08-04-17 277 0.028 +/- 0.004 02-10-17 324 0.033 +/- 0.004 08-11-17 276 0.030 +/- 0.004 02-17-17 282 0.024 +/- 0.004 08-18-17 279 0.026 +/- 0.004 02-24-17 281 0.031 +/- 0.004 08-25-17 274 0.027 +/- 0.004 03-03-17 284 0.029 +/- 0.004 09-01-17 276 0.035 +/- 0.005 03-10-17 283 0.021 +/- 0.004 09-08-17 279 0.035 +/- 0.004 03-17-17 281 0.023 +/- 0.004 09-15-17 276 0.062 +/- 0.005 03-24-17 284 0.028 +/- 0.004 09-22-17 276 0.035 +/- 0.004 03-30-17 241 0.013 +/- 0.003 09-29-17 277 0.037 +/- 0.004 1st Quarter Mean+/- s.d.

0.028 +/- 0.008 3rd Quarter Mean +/- s.d.

0.031 +/- 0.012 04-07-17 312 0.015 +/- 0.003 10-06-17 278 0.028 +/- 0.004 04-13-17 238 0.025 +/- 0.004 10-13-17 276 0.026 +/- 0.004 04-20-17 273 0.018 +/- 0.003 10-20-17 278 0.033 +/- 0.004 04-28-17 313 0.013 +/- 0.003 10-27-17 277 0.023 +/- 0.004 11-03-17 276 0.019 +/- 0.003 05-05-17 281 0.016 +/- 0.003 05-12-17 276 0.024 +/- 0.004 11-10-17 279 0.033 +/- 0.004 05-19-17 277 0.019 +/- 0.003 11-17-17 277 0.039 +/- 0.004 05-26-17 281 0.012 +/- 0.003 11-22-17 197 0.036 +/- 0.005 06-02-17 278 0.009 +/- 0.003 12-01-17 377 0.030 +/- 0.003 06-09-17 276 0.029 +/- 0.004 12-08-17 293 0.038 +/- 0.004 06-16-17 278 0.027 +/- 0.004 12-14-17 254 0.034 +/- 0.005 06-23-17 274 0.018 +/- 0.003 12-22-17 340 0.034 +/- 0.004 06-30-17 278 0.021 +/- 0.004 12-29-17 291 0.033 +/- 0.004 2nd Quarter Mean+/- s.d.

0.019 +/- 0.006 4th Quarter Mean+/- s.d.

0.031 +/- 0.006 Cumulative Average 0.027 a lodine-131 concentrations are< 0.03 pCi/m3 unless noted otherwise.

3-1

Table 4. Airborne particulates and charcoal canisters, analyses for gross beta and iodine-131°.

Location: D-7 (Shellsburg)

Units: pCi/m3 Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (m")

Gross Beta Collected (m")

Gross Beta Required LLD 0.010 Required LLD 0.010 01-05-17 279 0.030 +/- 0.004 07-07-17 277 0.034 +/- 0.004 01-12-17 286 0.039 +/- 0.005 07-14-17 279 0.025 +/- 0.004 01-20-17 436 0.037 +/- 0.004 07-21-17 276 0.026 +/- 0.004 01-26-17 288 0.029 +/- 0.005 07-28-17 276 0.030 +/- 0.004 02-02-17 265 0.026 +/- 0.004 08-04-17 277 0.041 +/- 0.004 02-10-17 300 0.035 +/- 0.004 08-11-17 276 0.030 +/- 0.004 02-17-17 262 0.026 +/- 0.004 08-18-17 278 0.030 +/- 0.004 02-24-17 261 0.033 +/- 0.004 08-25-17 277 0.032 +/- 0.004 03-03-17 278 0.029 +/- 0.004 09-01-17 280 0.035 +/- 0.004 03-10-17 283 0.017 +/- 0.003 09-08-17 282 0.035 +/- 0.004 03-17-17 281 0.029 +/- 0.004 09-15-17 279 0.060 +/- 0.005 03-24-17 285 0.026 +/- 0.004 09-22-17 279 0.038 +/- 0.004 03-30-17 240 0.015 +/- 0.004 09-29-17 280 0.036 +/- 0.004 1st Quarter Mean +/- s.d.

0.029 +/- 0.007 3rd Quarter Mean+/- s.d.

0.035 +/- 0.009 04-07-17 322 0.010 +/- 0.003 10-06-17 280 0.031 +/- 0.004 04-13-17 245 0.028 +/- 0.004 10-13-17 279 0.024 +/- 0.004 04-20-17 282 0.023 +/- 0.004 10-20-17 281 0.031 +/- 0.004 04-28-17 322 0.019 +/- 0.003 10-27-17 280 0.018 +/- 0.003 11-03-17 280 0.018 +/- 0.003 05-05-17 275 0.012 +/- 0.003 05-12-17 284 0.022 +/- 0.004 11-10-17 281 0.035 +/- 0.004 05-19-17 277 0.022 +/- 0.004 11-17-17 280 0.038 +/- 0.004 05-26-17 275 0.016 +/- 0.003 11-22-17 216 0.040 +/- 0.005 06-02-17 278 0.021 +/- 0.004 12-01-17 388 0.018 +/- 0.003 06-09-17 276 0.027 +/- 0.004 12-08-17 301 0.043 +/- 0.004 06-16-17 280 0.032 +/- 0.004 12-14-17 261 0.037 +/- 0.005 06-23-17 274 0.022 +/- 0.004 12-22-17 349 0.036 +/- 0.004 06-30-17 278 0.018 +/- 0.003 12-29-17 300 0.037 +/- 0.004 2nd Quarter Mean +/- s.d.

0.021 +/- 0.006 4th Quarter Mean+/- s.d.

0.031 +/- 0.009 Cumulative Average 0.029 a lodine-131 concentrations are< 0.03 pCi/m3 unless noted otherwise.

4-1

Table 5. Airborne particulates and charcoal canisters, analyses for gross beta and iodine-131 ".

Location: D-11 (Toddville)

Units: pCi/m3 Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (m")

Gross Beta Collected (m")

Gross Beta Required LLD 0.010 Required LLD O.D10 01-05-17 269 0.030 +/- 0.004 07-07-17 276 0.034 +/- 0.004 01-12-17 263 0.053 +/- 0.005 07-14-17 276 0.018 +/- 0.003 01-20-17 413 0.038 +/- 0.004 07-21-17 279 0.021 +/- 0.004 01-26-17 274 0.034 +/- 0.005 07-28-17 276 0.020 +/- 0.003 02-02-17 278 0.027 +/- 0.004 08-04-17 277 0.025 +/- 0.004 02-10-17 317 0.030 +/- 0.004 08-11-17 270 0.032 +/- 0.004 02-17-17 277 0.026 +/- 0.004 08-18-17 273 0.030 +/- 0.004 02-24-17 275 0.032 +/- 0.004 08-25-17 269 0.027 +/- 0.004 03-03-17 262 0.022 +/- 0.004 09-01-17 271 0.027 +/- 0.004 03-10-17 277 0.022 +/- 0.004 09-08-17 273 0.034 +/- 0.004 03-17-17 275 0.023 +/- 0.004 09-15-17 270 0.053 +/- 0.005 03-24-17 279 0.027 +/- 0.004 09-22-17 270 0.035 +/- 0.004 03-30-17 233 0.013 +/- 0.003 09-29-17 272 0.037 +/- 0.004 1st Quarter Mean +/- s.d.

0.029 +/- 0.010 3rd Quarter Mean +/- s.d.

0.030 +/- 0.009 04-07-17 315 0.014 +/- 0.003 10-06-17 272 0.031 +/- 0.004 04-13-17 240 0.027 +/- 0.004 10-13-17 269 0.025 +/- 0.004 04-20-17 276 0.019 +/- 0.003 10-20-17 273 0.032 +/- 0.004 04-28-17 316 0.018 +/- 0.003 10-27-17 271 0.021 +/- 0.004 11-03-17 271 0.021 +/- 0.004 05-05-17 261 0.011 +/- 0.003 05-12-17 278 0.019 +/- 0.004 11-10-17 269 0.036 +/- 0.004 05-19-17 297 0.022 +/- 0.003 11-17-17 269 0.043 +/- 0.005 05-26-17 275 0.011 +/- 0.003 11-22-17 192 0.039 +/- 0.006 06-02-17 279 0.017 +/- 0.003 12-01-17 344 0.033 +/- 0.004 06-09-17 276 0.022 +/- 0.004 12-08-17 267 0.039 +/- 0.005 06-16-17 280 0.025 +/- 0.004 12-14-17 231 0.035 +/- 0.005 06-23-17 274 0.015 +/- 0.003 12-22-17 310 0.039 +/- 0.004 06-30-17 278 0.013 +/- 0.003 12-29-17 266 0.033 +/- 0.004 2nd Quarter Mean+/- s.d.

0.018 +/- 0.005 4th Quarter Mean+/- s.d.

0.033 +/- 0.007 Cumulative Average 0.028 a lodine-131 concentrations are< 0.03 pCi/m3 unless noted otherwise.

5-1

Table 6. Airborne particulates and charcoal canisters, analyses for gross beta and iodine-131 a.

Location: D-13 (Alburnett)

Units: pCi/m3 Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (mo)

Gross Beta Collected (mo)

Gross Beta Required LLD 0.010 Required LLD 0.010 01-05-17 360 0.029 +/- 0.004 07-07-17 271 0.027 +/- 0.004 01-12-17 324 0.039 +/- 0.005 07-14-17 271 0.025 +/- 0.004 01-20-17 245 0.033 +/- 0.004 07-21-17 274 0.019 +/- 0.004 01-26-17 373 0.030 +/- 0.005 07-28-17 270 0.017 +/- 0.003 02-02-17 279 0.021 +/- 0.004 08-04-17 271 0.024 +/- 0.004 02-10-17 300 0.031 +/- 0.004 08-11-17 270 0.025 +/- 0.004 02-17-17 262 0.027 +/- 0.004 08-18-17 273 0.031 +/- 0.004 02-24-17 263 0.032 +/- 0.004 08-25-17 269 0.027 +/- 0.004 03-03-17 265 0.031 +/- 0.004 09-01-17 271 0.027 +/- 0.004 03-10-17 265 O.D28 +/- 0.004 09-08-17 273 0.029 +/- 0.004 03-17-17 260 0.027 +/- 0.004 09-15-17 270 0.052 +/- 0.005 03-24-17 265 0.027 +/- 0.004 09-22-17 270 0.033 +/- 0.004 03-30-17 223 0.016 +/- 0.004 09-29-17 272 0.031 +/- 0.004 1st Quarter Mean+/- s.d.

0.029 +/- 0.006 3rd Quarter Mean+/- s.d.

0.028 +/- 0.009 04-07-17 299 0.016 +/- 0.003 10-06-17 272 0.025 +/- 0.004 04-13-17 228 0.018 +/- 0.004 10-13-17 270 0.027 +/- 0.004 04-20-17 263 0.021 +/- 0.004 10-20-17 273 0.028 +/- 0.004 04-28-17 298 0.014 +/- 0.003 10-27-17 271 0.019 +/- 0.003 11-03-17 271 0.015 +/- 0.003 05-05-17 295 0.013 +/- 0.003 05-12-17 278 O.D18 +/- 0.003 11-10-17 273 0.033 +/- 0.004 05-19-17 205 0.019 +/- 0.004 11-17-17 272 0.032 +/- 0.004 05-26-17 295 0.014 +/- 0.003 11-22-17 194 0.040 +/- 0.006 06-02-17 299 0.011 +/- 0.003 12-01-17 347 0.022 +/- 0.003 06-09-17 296 0.019 +/- 0.003 12-08-17 270 0.024 +/- 0.004 06-16-17 298 0.012 +/- 0.003 12-14-17 234 0.033 +/- 0.005 06-23-17 293 0.015 +/- 0.003 12-22-17 314 0.029 +/- 0.004 06-30-17 272 0.017 +/- 0.003 12-29-17 294 0.036 +/- 0.004 2nd Quarter Mean +/- s.d.

0.016 +/- 0.003 4th Quarter Mean+/- s.d.

0.028 +/- 0.007 Cumulative Average 0.025 a lodine-131 concentrations are< 0.03 pCi/m3 unless noted otherwise.

6-1

Table 7. Airborne particulates and charcoal canisters, analyses for gross beta and iodine-131 *.

Location: D-15 (On-site, north)

Units: pCi/m3 Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (m")

Gross Beta Collected (m")

Gross Beta Required LLD 0.010 Required LLD 0.010 01-05-17 246 0.034 +/- 0.004 07-07-17 ND 0

01-12-17 278 0.048 +/- 0.005 07-14-17 274 0.026 +/- 0.004 01-20-17 327 0.036 +/- 0.004 07-21-17 275 0.027 +/- 0.004 01-26-17 243 0.022 +/- 0.004 07-28-17 273 0.021 +/- 0.004 02-02-17 268 0.024 +/- 0.004 08-04-17 273 0.026 +/- 0.004 02-10-17 303 0.035 +/- 0.004 08-11-17 267 0.030 +/- 0.004 02-17-17 265 0.031 +/- 0.004 08-18-17 266 0.028 +/- 0.004 02-24-17 265 0.034 +/- 0.004 08-25-17 264 0.027 +/- 0.004 03-03-17 267 0.017 +/- 0.004 09-01-17 265 0.023 +/- 0.004 03-10-17 266 0.022 +/- 0.004 09-08-17 268 0.030 +/- 0.004 03-17-17 264 0.029 +/- 0.004 09-15-17 264 0.054 +/- 0.005 03-24-17 268 0.027 +/- 0.004 09-22-17 265 0.032 +/- 0.004 03-30-17 252 0.013 +/- 0.003 09-29-17 265 0.038 +/- 0.004 1st Quarter Mean+/- s.d.

0.029 +/- 0.009 3rd Quarter Mean+/- s.d.

0.030 +/- 0.009 04-07-17 338 0.011 +/- 0.003 10-06-17 267 0.032 +/- 0.004 04-13-17 257 0.021 +/- 0.004 10-13-17 264 0.027 +/- 0.004 04-20-17 298 0.017 +/- 0.003 10-20-17 266 0.032 +/- 0.004 04-28-17 337 0.015 +/- 0.003 10-27-17 265 0.024 +/- 0.004 11-03-17 265 0.020 +/- 0.004 05-05-17 91 0.007 +/- 0.007 05-12-17 299 0.020 +/- 0.003 11-10-17 276 0.032 +/- 0.004 05-19-17 269 0.024 +/- 0.004 11-17-17 274 0.037 +/- 0.004 05-26-17 277 0.013 +/- 0.003 11-22-17 195 0.043 +/- 0.006 06-02-17 271 0.017 +/- 0.003 12-01-17 352 0.024 +/- 0.003 06-09-17 274 0.031 +/- 0.004 12-08-17 273 0.039 +/- 0.005 06-16-17 254 0.028 +/- 0.004 12-14-17 236 0.038 +/- 0.005 06-23-17 270 0.018 +/- 0.003 12-22-17 315 0.037 +/- 0.004 06-30-17 261 0.021 +/- 0.004 12-29-17 272 0.036 +/- 0.004 2nd Quarter Mean+/- s.d.

0.019 +/- 0.007 4th Quarter Mean+/- s.d.

0.032 +/- 0.007 Cumulative Average 0.027 a lodine-131 concentrations are< 0.03 pCi/m3 unless noted otherwise.

b Low volume due to power outage; storms in area. 1-131 result= 0.036 pCi/m3 due to low volume.

See Section 2.0, Program Deviations.

0 "ND" =No data; see Section 2.0, Program Deviations.

7-1

Table 8. Airborne particulates and charcoal canisters, analyses for gross beta and iodine-131 *.

Location: D-16 (On-site)

Units: pCi/m 3

Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (m")

Gross Beta Collected (m")

Gross Beta Required LLD 0.010 Required LLD 0.010 01-05-17 244 0.030 +/- 0.004 07-07-17 268 0.031 +/- 0.004 01-12-17 270 0.043 +/- 0.005 07-14-17 269 0.021 +/- 0.004 01-20-17 317 0.035 +/- 0.004 07-21-17 269 0.014 +/- 0.003 01-26-17 236 0.029 +/- 0.005 07-28-17 268 0.024 +/- 0.004 02-02-17 286 0.023 +/- 0.004 08-04-17 267 0.025 +/- 0.004 02-10-17 303 0.042 +/- 0.004 08-11-17 270 0.026 +/- 0.004 02-17-17 266 0.025 +/- 0.004 08-18-17 270 0.029 +/- 0.004 02-24-17 263 0.031 +/- 0.004 08-25-17 268 0.025 +/- 0.004 03-03-17 270 0.029 +/- 0.004 09-01-17 271 0.030 +/- 0.004 03-10-17 265 0.025 +/- 0.004 09-08-17 274 0.037 +/- 0.004 03-17-17 264 0.024 +/- 0.004 09-15-17 270 0.048 +/- 0.005 03-24-17 266 0.031 +/- 0.004 09-22-17 271 0.030 +/- 0.004 03-30-17 227 0.014 +/- 0.004 09-29-17 271 0.039 +/- 0.004 1st Quarter Mean+/- s.d.

0.029 +/- 0.008 3rd Quarter Mean+/- s.d.

0.029 +/- 0.009 04-07-17 303 0.019 +/- 0.003 10-06-17 273 0.022 +/- 0.004 04-13-17 230 0.024 +/- 0.004 10-13-17 270 0.023 +/- 0.004 04-20-17 265 0.022 +/- 0.004 10-20-17 272 0.035 +/- 0.004 04-28-17 303 0.017 +/- 0.003 10-27-17 271 0.027 +/- 0.004 11-03-17 270 0.018 +/- 0.004 05-05-17 267 0.016 +/- 0.003 05-12-17 275 0.024 +/- 0.004 11-10-17 274 0.040 +/- 0.005 05-19-17 261 0.021 +/- 0.004 11-17-17 271 0.043 +/- 0.005 05-26-17 270 0.013 +/- 0.003 11-22-17 185 0.047 +/- 0.006 06-02-17 266 0.019 +/- 0.004 12-01-17 334 0.030 +/- 0.004 06-09-17 267 0.027 +/- 0.004 12-08-17 259 0.039 +/- 0.005 06-16-17 272 0.028 +/- 0.004 12-14-17 224 0.040 +/- 0.005 06-23-17 265 0.021 +/- 0.004 12-22-17 299 0.043 +/- 0.004 06-30-17 269 0.019 +/- 0.004 12-29-17 258 0.041 +/- 0.005 2nd Quarter Mean+/- s.d.

0.021 +/- 0.004 4th Quarter Mean+/- s.d.

0.035 +/- 0.009 Cumulative Average 0.028

lodine-131 concentrations are< 0.03 pCi/m3 unless noted otherwise.

8-1

Table 9. Airborne particulates and charcoal canisters, analyses for gross beta and iodine-131 *.

Location: D-40 (Wickiup Hill)

Units: pCi/m3 Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (m")

Gross Beta Collected (mJ)

Gross Beta Required LLD 0.010 Required LLD 0.010 01-05-17 239 0.033 +/- 0.005 07-07-17 263 0.032 +/- 0.004 01-12-17 246 0.044 +/- 0.005 07-14-17 260 0.022 +/- 0.004 01-20-17 372 0.034 +/- 0.004 07-21-17 262 0.025 +/- 0.004 01-26-17 244 0.034 +/- 0.005 07-28-17 264 0.024 +/- 0.004 02-02-17 278 0.021 +/- 0.004 08-04-17 265 0.026 +/- 0.004 02-10-17 317 0.042 +/- 0.004 08-11-17 263 0.030 +/- 0.004 02-17-17 268 0.027 +/- 0.004 08-18-17 255 0.026 +/- 0.004 02-24-17 267 0.028 +/- 0.004 08-25-17 263 0.026 +/- 0.004 03-03-17 275 0.028 +/- 0.004 09-01-17 257 0.032 +/- 0.005 03-10-17 269 0.024 +/- 0.004 09-08-17 263 0.029 +/- 0.004 03-17-17 267 0.028 +/- 0.004 09-15-17 260 0.050 +/- 0.005 03-24-17 269 0.027 +/- 0.004 09-22-17 256 0.033 +/- 0.004 03-30-17 229 0.014 +/- 0.004 09-29-17 263 0.032 +/- 0.004 1st Quarter Mean+/- s.d.

0.029 +/- 0.008 3rd Quarter Mean+/- s.d.

0.030 +/- 0.007 04-07-17 306 0.016 +/- 0.003 10-06-17 260 0.026 +/- 0.004 04-13-17 233 0.027 +/- 0.004 10-13-17 256 0.027 +/- 0.004 04-20-17 267 0.025 +/- 0.004 10-20-17 265 0.030 +/- 0.004 04-28-17 306 0.018 +/- 0.003 10-27-17 256 0.019 +/- 0.004 11-03-17 261 0.015 +/- 0.003 05-05-17 273 0.016 +/- 0.003 05-12-17 270 0.027 +/- 0.004 11-10-17 259 0.030 +/- 0.004 05-19-17 274 0.019 +/- 0.003 11-17-17 275 0.044 +/- 0.005 05-26-17 261 0.017 +/- 0.004 11-22-17 193 0.030 +/- 0.005 06-02-17 80 0.019 +/- 0.009 12-01-17 348 0.028 +/- 0.003 06-09-17 257 0.023 +/- 0.004 12-08-17 272 0.023 +/- 0.004 06-16-17 267 0.027 +/- 0.004 12-14-17 236 0.033 +/- 0.005 06-23-17 261 0.020 +/- 0.004 12-22-17 314 0.036 +/- 0.004 06-30-17 252 0.012 +/- 0.003 12-29-17 271 0.033 +/- 0.004 2nd Quarter Mean+/- s.d.

0.021 +/- 0.005 4th Quarter Mean+/- s.d.

0.029 +/- 0.007 Cumulative Average 0.027

lodine-131 concentrations are< 0.03 pCi/m3 unless noted otherwise.

b Low volume due to power outage. See Section 2.0, Program Deviations.

9-1

Table 10.

Airborne particulates, analyses for gamma-emitting isotopes.

Collection: Quarterly Composite Units: pCi/m, Location 0-3 Quarter 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Lab Code OAP-1705 OAP-3685 OAP-5561 OAP-6780 Volume (m,)

3537 3821 3700 3566 Be-7 0.072 +/- 0.019 0.11 +/- 0.017 0.11 +/- 0.021 0.070 +/- 0.018 Mn-54

< 0.0012

< 0.0010

< 0.0011

< 0.0015 Fe-59

< 0.0017

< 0.0020

< 0.0029

< 0.0032 Co-58

< 0.0007

< 0.0006

< 0.0011

< 0.0011 Co-60

< 0.0005

< 0.0012

< 0.0009

< 0.0012 Zn-65

< 0.0018

< 0.0011

< 0.0009

< 0.0030 Nb-95

< 0.0013

< 0.0010

< 0.0014 Zr-95

< 0.0019

< 0.0014

< 0.0020

< 0.0013 Ru-103

< 0.0013

< 0.0008

< 0.0009

< 0.0020 Ru-106

< 0.0065

< 0.0071

< 0.0062

< 0.0117 Cs-134

< 0.0011

< 0.0009

< 0.0008

< 0.0012 Cs-137

< 0.0008

< 0.0007

< 0.0012 Ce-141

< 0.0014

< 0.0023

< 0.0031 Ce-144

< 0.0053

< 0.0033

< 0.0052

< 0.0047 Location 0-5A Lab Code OAP-1706 OAP-3686 OAP-5562 OAP-6781 Volume (m,)

3592 3627 3707 3525 Be-7 0.072 +/- 0.017 0.10 +/- 0.017 0.092 +/- 0.017 0.070 +/- 0.016 Mn-54

< 0.0009

< 0.0008

< 0.0005

< 0.0011 Fe-59

< 0.0018

< 0.0023

< 0.0017

< 0.0016 Co-58

< 0.0006

< 0.0007

< 0.0007 Co-60

< 0.0004

< 0.0005

< 0.0007

< 0.0011 Zn-65

< 0.0012

< 0.0011

< 0.0008

< 0.0014 Nb-95

< 0.0014

< 0.0010

< 0.0013

< 0.0013 Zr-95

< 0.0016

< 0.0019

< 0.0013

< 0.0012 Ru-103

< 0.0015

< 0.0008

< 0.0010

< 0.0011 Ru-106

< 0.0071

< 0,0062

< 0.0050

< 0.0060 Cs-134

< 0,0010

< 0.0010

< 0.0008

< 0.0008 Cs-137

< 0.0009

< 0.0004

< 0.0008 Ce-141

< 0.0013

< 0.0016

< 0.0013

< 0.0020 Ce-144

< 0.0040

< 0.0062

< 0.0035 Location 0-6 Lab Code OAP-1708 OAP-3687 OAP-5563 OAP-6782 Volume (m,)

3749 3634 3599 3694 Be-7 0.070 +/- 0.013 0.084 +/- 0.015 0.092 +/- 0.014 0.061 +/- 0.015 Mn-54

< 0.0005

< 0.0008

< 0.0006

< 0.0006 Fe-59

< 0,0017

< 0,0021

< 0,0015

< 0.0023 Co-58

< 0,0007

< 0.0012

< 0.0006

< 0.0009 Co-60

< 0.0009

< 0.0005

< 0.0003

< 0.0006 Zn-65

< 0.0010

< 0.0008

< 0.0010

< 0.0012 Nb-95

< 0.0008

< 0.0013

< 0.0011

< 0.0008 Zr-95

< 0.0019

< 0.0016

< 0.0018 Ru-103

< 0.0007

< 0.0008

< 0.0012

< 0.0012 Ru-106

< 0.0040

< 0.0053

< 0.0058

< 0.0062 Cs-134

< 0.0006

< 0.0012

< 0.0007

< 0.0010 Cs-137

< 0.0007

< 0.0010

< 0.0006 Ce-141

< 0.0013

< 0.0014

< 0.0017

< 0.0013 Ce-144

< 0.0024

< 0.0031

< 0.0046

< 0.0041 10-1

Table 10.

Airborne particulates, analyses for gamma-emitting isotopes.

Collection: Quarterly Composite Units: pCi/mJ Location D-7 Quarter 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Lab Code DAP-1709 DAP-3688 DAP-5564 DAP-6783 Volume (mJ) 3743 3668 3616 3777 Be-7 0.069 +/- 0.018 0.092 +/- 0.020 0.089 +/- 0.015 0.063 +/- 0.013 Mn-54

< 0.0008

< 0.0007

< 0.0006

< 0.0010 Fe-59

< 0.0010

< 0.0015

< 0.0014

< 0.0020 Co-58

< 0.0006

< 0.0012

< 0.0005

< 0.0008 Co-60

< 0.0004

< 0.0005

< 0.0006

< 0.0009 Zn-65

< 0.0014

< 0.0008

< 0.0016

< 0.0019 Nb-95

< 0.0015

< 0.0010

< 0.0011 Zr-95

< 0.0018

< 0.0016

< 0.0022 Ru-103

< 0.0016

< 0.0008

< 0.0013

< 0.0008 Ru-106

< 0.0065

< 0.0033

< 0.0044

< 0.0070 Cs-134

< 0.0010

< 0.0012

< 0.0008

< 0.0009 Cs-137

< 0.0009

< 0.0007

< 0.0008

< 0.0010 Ce-141

< 0.0015

< 0.0022

< 0.0022 Ce-144

< 0.0053

< 0.0036

< 0.0043

< 0.0050 Location D-11 Lab Code DAP-1710 DAP-3689 DAP-5565 DAP-6785 Volume (mJ) 3692 3645 3554 3505 Be-7 0.055 +/- 0.013 0.080 +/- 0.016 0.095 +/- 0.015 0.059 +/- 0.014 Mn-54

< 0.0008

< 0.0009

< 0.0006 Fe-59

< 0.0011

< 0.0015

< 0.0014

< 0.0018 Co-58

< 0.0007

< 0.0009

< 0.0007 Co-60

< 0.0004

< 0.0009

< 0.0006 Zn-65

< 0.0017

< 0.0008

< 0.0014

< 0.0010 Nb-95

< 0.0008

< 0.0010

< 0.0012

< 0.0014 Zr-95

< 0.0015

< 0.0013

< 0.0022

< 0.0015 Ru-103

< 0.0007

< 0.0011

< 0.0007

< 0.0013 Ru-106

< 0.0053

< 0.0041

< 0.0069

< 0.0048 Cs-134

< 0.0006

< 0.0008

< 0.0008 Cs-137

< 0.0005

< 0.0006

< 0.0007

< 0.0005 Ce-141

< 0.0018

< 0.0014

< 0.0017

< 0.0015 Ce-144

< 0.0040

< 0.0037

< 0.0028

< 0.0028 Location D-13 Lab Code DAP-1711 DAP-3690 DAP-5566 DAP-6786 Volume (m3) 3683 3620 3526 3554 Be-7 0.061 +/- 0.014 0.087 +/- 0.018 0.093 +/- 0.015 0.050 +/- 0.016 Mn-54

< 0.0006

< 0.0009

< 0.0010 Fe-59

< 0.0011

< 0.0018

< 0.0015

< 0.0020 Co-58

< 0.0005

< 0.0011

< 0.0004

< 0.0008 Co-60

< 0.0008

< 0.0010

< 0.0004

< 0.0008 Zn-65

< 0.0007

< 0.0011

< 0.0007

< 0.0012 Nb-95

< 0.0009

< 0.0012

< 0.0016

< 0.0007 Zr-95

< 0.0009

< 0.0011

< 0.0014

< 0.0019 Ru-103

< 0.0008

< 0.0007

< 0.0019 Ru-106

< 0.0061

< 0.0058

< 0.0036

< 0.0081 Cs-134

< 0.0006

< 0.0009

< 0.0007

< 0.0009 Cs-137

< 0.0005

< 0.0008

< 0.0007

< 0.0008 Ce-141

< 0.0017

< 0.0014

< 0.0018

< 0.0024 Ce-144

< 0.0034

< 0.0038

< 0.0028

< 0.0060 10-2

Table 10.

Airborne particulates, analyses for gamma-emitting isotopes.

Collection: Quarterly Composite Units: pCi/mJ Location D-15 Quarter 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Lab Code DAP-1712 DAP-3691 DAP-5567 DAP-6787 Volume (mJ) 3513 3496 3220 3522 Be-7 0.080 +/- 0.019 0.093 +/- 0.016 0.094 +/- 0.016 0.071 +/- 0.013 Mn-54

< 0.0008

< 0.0005

< 0.0006 Fe-59

< 0.0013

< 0.0019

< 0.0012

< 0.0013 Co-58

< 0,0008

< 0.0009

< 0.0007

< 0.0007 Co-60

< 0.0012

< 0,0007

< 0.0007

< 0.0006 Zn-65

< 0.0017

< 0.0012

< 0.0013

< 0.0006 Nb-95

< 0.0017

< 0.0005

< 0.0007

< 0.0004 Zr-95

< 0.0019

< 0.0020

< 0.0009

< 0.0015 Ru-103

< 0.0015

< 0.0011

< 0.0015

< 0.0007 Ru-106

< 0.0075

< 0.0081

< 0.0050

< 0.0088 Cs-134

< 0.0010

< 0.0008

< 0.0007 Cs-137

< 0.0010

< 0.0007

< 0.0007 Ce-141

< 0.0027

< 0.0015

< 0.0020

< 0.0018 Ce-144

< 0.0053

< 0.0039

< 0.0045

< 0.0039 Location D-16 Lab Code DAP-1713 DAP-3692 DAP-5568 DAP-6788 Volume (mJ) 3479 3513 3505 3460 Be-7 0.075 +/- 0.023 0.086 +/- 0.016 0.088 +/- 0.016 0.077 +/- 0.019 Mn-54

< 0.0009

< 0.0010

< 0.0005

< 0.0015 Fe-59

< 0.0018

< 0.0016

< 0.0011

< 0.0037 Co-58

< 0.0005

< 0.0009

< 0.0004

< 0.0007 Co-60

< 0.0005

< 0.0004

< 0.0010 Zn-65

< 0.0008

< 0.0017

< 0.0013

< 0.0046 Nb-95

< 0.0015

< 0.0010

< 0.0015 Zr-95

< 0.0022

< 0.0019

< 0.0016 Ru-103

< 0.0012

< 0.0007

< 0.0010

< 0.0024 Ru-106

< 0.0070

< 0.0060

< 0.0034

< 0.0081 Cs-134

< 0.0009

< 0.0011

< 0.0007

< 0.0015 Cs-137

< 0.0007

< 0.0006

< 0.0008

< 0.0012 Ce-141

< 0.0025

< 0.0015

< 0.0010

< 0.0024 Ce-144

< 0.0048

< 0.0035

< 0.0031

< 0.0067 Location D-40 Lab Code DAP-1714 DAP-3693 DAP-5569 DAP-6789 Volume (mJ) 3539 3306 3395 3466 Be-7 0.084 +/- 0.020 0.093 +/- 0.018 0.064 +/- 0.017 0.069 +/- 0.019 Mn-54

< 0.0010

< 0.0011

< 0.0013

< 0,0011 Fe-59

< 0.0027

< 0.0020

< 0.0018

< 0,0018 Co-58

< 0.0009

< 0.0011

< 0.0013

< 0.0010 Co-60

< 0.0007

< 0.0011

< 0.0008

< 0.0008 Zn-65

< 0.0010

< 0.0020

< 0.0027

< 0.0011 Nb-95

< 0.0011

< 0.0015

< 0.0025

< 0.0014 Zr-95

< 0.0023

< 0.0014

< 0.0027

< 0.0022 Ru-103

< 0.0015

< 0.0009

< 0.0018

< 0.0019 Ru-106

< 0.0049

< 0.0069

< 0.0094

< 0.0076 Cs-134

< 0.0011

< 0.0012

< 0.0011 Cs-137

< 0.0006

< 0.0007

< 0.0011

< 0.0010 Ce-141

< 0.0023

< 0.0015

< 0.0029

< 0.0034 Ce-144

< 0.0065

< 0.0039

< 0.0049

< 0.0050 10-3

Table 11. Ambient gamma radiation as measured by thermoluminescent dosimeters (TLD).

Quarterly collection.

Units: mR/91 days Control Locations 1st0tr.

2nd Qtr.

3rd Qtr.

4th Qtr.

D-1 18.1 +/-1.3 18.0+/-1.6 14.7+/-1.2 18.1 +/- 1.6 D-2 16.1 +/- 1.0 14.7 +/- 1.3 14.7+/-1.4 13.4 +/- 1.1 D-3 16.6+/-1.1 14.5 +/- 0.7 13.1 +/- 1.3 14.5 +/- 0.7 D-5 19.1 +/- 1.1 17.7+/-1.2 16.4+/-1.2 17.4 +/- 0.6 D-5A 22.1 +/-0.3 19.9 +/- 1.4 15.1 +/- 0.8 18.5 +/- 1.1 D-6 16.8 +/- 1.0 17.4+/-1.4 14.2+/-1.0 16.1 +/- 1.0 D-7 15.7+/-0.9 13.6 +/- 0.9 13.2+/-1.3 13.9+/-1.0 D-8 19.7+/-1.0 16.6 +/- 1.0 16.4+/-1.3 16.5+/-1.0 D-10 19.1 +/-1.7 15.9+/-1.0 17.9+/-1.3 15.7 +/- 0.9 D-11 15.6 +/- 0.7 14.0+/-1.6 13.2 +/- 0.8 13.9 +/- 0.6 D-13 16.7+/-0.8 18.4 +/- 1.8 13.5+/-1.0 15.3 +/- 1.1 Mean +/-s.d.

17.8 +/-2.0 16.4 +/- 2.1 14.8 +/- 1.6 15.8+/-1.8 Within 0.5 mi. of Stack D-15 17.5 +/- 0.9 16.8 +/- 0.7 14.5+/-1.1 17.3 +/- 0.6 D-16 17.3+/-1.0 15.1 +/-1.2 14.7+/-1.1 14.4 +/- 1.0 D-17 22.0 +/- 0.8 22.3+/-1.3 21.4+/-0.9 21.0+/-1.2 D-18 19.6 +/- 1.5 16.6 +/- 0.7 17.2+/-1.5 17.1+/-0.7 D-19 19.1 +/- 1.3 15.4+/-1.4 16.5 +/- 1.2 15.7 +/- 1.1 D-20 20.1 +/- 0.9 19.2 +/- 1.6 17.9+/-1.3 18.5+/-1.9 D-21 21.2+/-1.0 16.6 +/- 0.8 19.2 +/- 1.1 15.7 +/- 0.7 D-22 18.8+/-1.1 16.7+/-1.2 16.8+/-1.2 15.6 +/- 1.0 D-23 15.3+/-1.1 16.1 +/-1.0 12.7+/-1.1 15.0 +/- 1.0 D-28 22.4+/-1.7 18.6 +/- 0.8 21.1 +/- 1.8 17.7 +/- 1.0 D-29 21.4 +/- 0.9 23.6 +/- 1.3 20.2 +/- 0.9 22.2 +/- 0.9 D-30 20.8 +/- 1.0 21.9 +/- 2.0 18.7+/-1.3 21.3+/-1.8 D-31 20.5+/-1.4 19.8 +/-2.1 19.9 +/- 1.6 18.9 +/- 1.5 D-32 20.5 +/- 0.9 21.8 +/- 1.1 19.0+/-1.0 21.3+/-1.1 D-82 17.2 +/- 0.7 16.8+/-1.0 14.7+/-1.1 16.9+/-1.0 D-83 19.3 +/- 0.8 17.9+/-1.2 15.9+/-1.2 20.1 +/- 0.9 D-84 19.0+/-1.2 16.4 +/- 0.9 17.7+/-1.3 17.5 +/- 0.9 D-85 18.7+/-0.6 20.5+/-1.2 16.4 +/- 0.9 22.2+/-1.3 D-86 20.5 +/- 1.2 ND" 16.6+/-1.4 15.9 +/- 0.6 D-91 18.2+/-1.1 16.5 +/- 1.4 15.7+/-1.3 19.7 +/- 1.3 Mean+/- s.d.

19.5+/-1.8 18.3 +/- 2.6 17.3 +/- 2.3 18.2 +/- 2.5

""ND"= No data; see Section 2.0, Program Deviations.

11-1

Table 11. Ambient gamma radiation as measured by thermoluminescent dosimeters (TLD).

Quarterly collection.

Units: mR/91 days Within 1.0 mi. of 1st Qtr.

2nd Qtr.

3rd Qtr.

4th Qtr.

Stack D-43 16.7+/-1.0 14.9+/-1.2 15.1 +/- 1.1 16.1 +/- 1.2 D-44 20.5+/-1.0 18.0 +/- 0.8 18.8+/-1.3 19.5 +/- 0.6 D-45 16.0 +/- 0.9 14.5+/-1.4 15.9+/-1.1 15.9+/-1.2 D-46 20.7+/-1.2 21.7+/-1.3 19.0+/-1.2 24.1 +/- 1.2 D-47 20.5 +/- 1.1 15.7+/-1.2 18.2+/-1.5 17.1 +/- 0.8 D-48 22.7+/-1.1 21.2+/-1.1 20.7+/-1.5 22.5+/-1.0 Mean +/-s.d.

19.5 +/-2.6 17.7+/-3.2 18.0 +/- 2.1 19.2 +/- 3.4 Within 3.0 mi. of Stack D-33 14.6 +/- 0.8 13.2 +/- 0.8 12.9 +/- 0.9 14.2 +/- 0.9 D-34 16.6 +/- 0.8 12.7 +/- 0.9 15.0 +/- 0.9 13.8+/-1.1 D-35 16.8 +/- 0.7 17.0 +/- 0.9 14.9 +/- 0.9 18.4 +/- 0.8 D-36 18.9 +/- 0.8 15.4 +/- 0.9 17.3 +/-1.0 16.9 +/- 0.9 D-37 18.0+/-1.5 19.2+/-1.2 18.1 +/- 1.6 21.0+/-1.2 D-38 18.8+/-1.1 17.9 +/- 1.9 17.1 +/-1.5 18.9+/-1.3 D-39 16.6 +/- 0.9 15.2 +/- 0.8 16.3+/-1.3 16.1 +/-0.8 D-40 15.9+/-1.0 14.8+/-1.0 NDa 16.9 +/- 0.9 D-41 18.3+/-1.1 18.9+/-1.2 16.5+/-1.4 ND" D-42 15.1 +/- 0.9 14.5 +/- 0.9 14.0+/-1.3 15.6 +/- 0.9 Mean +/-s.d.

17.0+/-1.5 15.9 +/- 2.3 15.8 +/- 1.7 16.9 +/- 2.3 ISFSI Fenceline D-161 56.2 +/- 2.5 43.2 +/-4.2 47.7 +/- 2.5 48.7 +/-3.2 D-162 23.0+/-1.5 20.3 +/- 1.8 18.7+/-1.6 22.0+/-1.9 D-163 46.2 +/- 2.0 39.4 +/- 1.9 44.9+/-1.7 49.8 +/-2.6 D-164 19.7+/-1.2 16.8 +/- 1.0 17.6+/-1.2 16.9+/-1.0 Mean +/-s.d.

36.3+/-17.7 29.9 +/- 13.3 32.2 +/- 16.3 34.4 +/-17.3

""ND"= No data; see Section 2.0, Program Deviations.

11-2

Table 12.

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

Collection: Milk samples are collected monthly throughout the year.

Location D-76*

Date Lab Concentration (pCi/L)

Collected Code 1-131 K-40 Cs-134 Cs-137 Ba-140 La-140 02-07-17 DMI-482

< 0.7 1450 +/- 65

< 2.6

< 3.4

< 8.3

< 3.0 03-17-17 DMI-1083

< 0.4 1814 +/- 88

< 3.1

< 3.7

< 13.8

< 3.4 04-12-17 DMI-1527

< 0.4 1694 +/- 80

< 2.9

< 3.0

< 10.1

< 3.3 05-16-17 NDb 06-08-17 NDb 07-12-17 NDb 08-08-17 NDb 09-06-17 NDb 10-10-17 NDb 11-14-17 NDb 12-05-17 NDb Location D-110 Date Lab Concentration (pCi/L)

Collected Code 1-131 K-40 Cs-134 Cs-137 Ba-140 La-140 01-06-16 DMI-120

< 0.4 1390+/-104

< 3.6

< 10.3

< 1.9 02-07-17 DMI-483

< 0.4 1397 +/- 93

<2.5

< 2.6

< 11.6

< 1.7 03-15-17 DMI-1027

< 0.5 1524 +/- 71

< 2.9

< 2.1

< 5.4

< 2.2 04-06-17 DMI-1435

< 0.4 1486+/-110

< 3.7

< 3.8

< 14.3

< 1.9 05-16-17 DMI-2244

< 0.3 1434 +/- 89

< 2.8

< 2.9

< 11.2

< 1.9 06-08-17 DMI-2801

< 0.3 1271 +/-110

< 4.1

< 1.9

< 13.2

< 3.6 07-12-17 DMI-3420

< 0.3 1422 +/- 106

< 3.1

< 4.1

< 11.9

< 1.4 08-08-17 DMI-4043

< 0.5 1484 +/- 104

< 3.4

< 3.3

< 15.9

< 3.4 09-06-17 DMI-4528

< 0.5 1486+/-112

< 3.0

< 3.5

< 11.0

< 2.4 10-10-17 DMI-5346

< 0.4 1332+/-113

< 3.3

< 2.3

< 10.6

< 3.4 11-14-17 DMI-6069

< 0.3 1420+/-114

< 3.9

< 3.2

< 8.4

< 2.4 12-05-17 DMI-6319

< 0.3 1571 +/-112

< 3.5

< 3.8

< 7.6

< 1.8

New goat's milk location as of February 2017.

b "ND" "' No data; see Table 2.0, Program Deviations.

12-1

Table 12.

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

Collection: Milk samples are collected monthly throughout the year.

Location D-138 Date Lab Concentration (pCi/L)

Collected Code 1-131 K-40 Cs-134 Cs-137 Ba-140 La-140 01-06-16 DMI-121

< 0.3 1560 +/- 109

< 3.1

< 10.9

< 2.6 02-07-17 DMI-484

< 0.4 1481 +/-100

< 2.6

< 3.2

< 9.3

< 0.9 03-15-17 DMI-1028

< 0.3 1357 +/- 99

< 3.3

< 3.9

< 9.8

< 2.6 04-06-17 DMI-1436

< 0.4 1380+/-112

< 3.6

< 3.0

< 14.5

< 2.2 05-16-17 DMI-2245

< 0.5 1361 +/- 90

< 3.0

< 1.8

< 9.7

< 2.0 06-08-17 DMI-2802

< 0.3 1364 +/- 111

< 3.5

< 13.1

< 1.2 07-12-17 DMI-3421

< 0.4 1524 +/- 114

< 3.2

< 2.9

< 12.3

<2.9 08-08-17 DMI-4044

< 0.5 1422 +/- 95

< 2.9

< 3.7

< 15.2

< 0.8 09-06-17 DMI-4529

< 0.5 1319 +/- 93

< 2.9

< 1.8

< 8.7

< 1.0 10-10-17 DMI-5347

< 0.4 1434 +/- 109

< 3.3

< 3.1

< 14.2

< 2.5 11-14-17 DMI-6070

< 0.4 1291 +/-108

< 3.8

< 11.5

< 2.1 12-05-17 DMI-6320

< 0.3 1301 +/- 108

< 3.0

< 3.3

< 13.5

< 1.8 12-2

Table 13. Well water samples, analyses for gamma emitting isotopes iodine-131 and tritium.

Location Lab Code Collection: Monthly Units: pCi/L DWW-244 Date Collected 01-18-17 H-3

< 179 1-131

< 0.4 Mn-54

< 1.6 Fe-59

< 3.0 Co-58

< 1.3 Co-60

< 1.4 Zn-65

< 6.2 Nb-95

< 3.5 Zr-95

< 4.0 1-131

< 3.8 Cs-134

< 2.9 Cs-137

< 2.7 Ba-140

< 9.6 La-140

< 2.5 Lab Code DWW-2112 Date Collected 05-11-17 H-3

< 151 1-131

< 0.3 Mn-54

< 2.7 Fe-59

< 6.3 Co-58

< 2.0 Co-60

< 2.5 Zn-65

< 6.0 Nb-95

< 2.1 Zr-95

< 3.8 1-131

< 4.9 Cs-134

< 3.1 Cs-137

< 2.7 Ba-140

< 16.1 La-140

< 2.8

"ND" = No data; see Section 2.0, Program Deviations.

D-52 Drinking Water DWW-588 DWW-1208 02-13-17 03-27-17

< 154

< 151

< 0.3

< 2.4

< 4.7

< 6.8

< 5.7

< 2.3

< 3.5

< 3.2

< 2.9

< 5.0

< 3.4

< 2.9

< 2.7

< 7.1

< 6.7

< 8.1

< 5.8

< 4.1

< 3.8

< 3.7

< 12.1

< 16.9

< 4.2

< 2.9 DWW-3012 DWW-3638 06-19-17 07-18-17

< 146

< 183

< 0.4

< 0.2

< 2.7

< 2.3

< 7.4

< 5.6

< 3.0

< 2.4

< 2.7

< 1.5

< 3.5

< 1.7

< 4.5

< 2.0

< 5.6

< 4.0

< 5.2

< 4.2

< 3.9

< 3.2

< 4.4

< 1.9

< 12.5

< 12.2

< 2.9

< 2.5 13-1 DWW-1541 04-13-17

< 147

< 0.5

< 2.1

< 2.8

< 1.8

< 2.3

< 3.5

< 3.7

< 5.3

< 2.9

< 3.5

< 11.9

< 3.9 NDa 08-16-17

Table 13. Well water samples, analyses for gamma emitting isotopes iodine-131 and tritium.

Location Lab Code Collection: Monthly Units: pCi/L DWW-4888 Date Collected 09-20-17 H-3

< 183 1-131

< 0.2 Mn-54

< 1.6 Fe-59

< 1.9 Co-58

< 2.4 Co-60

< 2.3 Zn-65

< 3.1 Nb-95

< 2.4 Zr-95

< 2.8 1-131

< 4.3 Cs-134

< 2.8 Cs-137

< 2.7 Ba-140

< 12.2 La-140

< 3.2 D-52 Drinking Water DWW-5610 DWW-6138 10-18-17 11-16-17

< 154

< 151

< 0.3

< 0.2

< 2.2

< 2.8

< 4.1

< 4.8

< 2.6

< 2.5

< 2.2

< 1.4

< 4.5

< 3.0

< 3.3

< 2.2

< 5.1

< 3.0

< 6.1

< 4.1

< 3.2

< 3.6

< 3.3

< 2.5

< 13.0

< 17.1

< 2.8

< 2.9 13-2 DWW-6573 12-21-17

< 154

< 0.3

< 5.4

< 8.9

< 4.9

< 4.6

< 8.3

< 4.4

< 9.2

< 7.2

< 6.1

< 6.4

< 30.3

< 7.9

Table 13. Well water samples, analyses for gamma emitting isotopes iodine-131 and tritium.

Location Lab Code Collection: Monthly Units: pCi/L DWW-245 Date Collected 01-18-17 H-3

< 179 1-131

< 0.3 Mn-54

< 3.2 Fe-59

< 5.5 Co-58

< 3.2 Co-60

< 3.1 Zn-65

< 5.2 Nb-95

< 2.4 Zr-95

< 6.3 1-131

< 5.3 Cs-134

< 4.0 Cs-137

< 2.3 Ba-140

< 12.1 La-140

< 2.5 Lab Code DWW-2113 Date Collected 05-11-17 H-3

< 151 1-131

< 0.4 Mn-54

< 2.2 Fe-59

< 6.7 Co-58

< 1.8 Co-60

< 1.9 Zn-65

< 3.4 Nb-95

< 2.6 Zr-95

< 2.3 1-131

< 5.0 Cs-134

< 3.5 Cs-137

< 3.1 Ba-140

< 11.5 La-140

< 2.6 D-53 Treated Municipal Water, Drinking Water DWW-589 DWW-1209 02-13-17 03-27-17

< 154

< 151

< 0.3

< 3.1

< 2.5

< 6.4

< 3.9

< 3.1

< 2.9

< 2.2

< 7.9

< 2.7

< 2.0

< 3.2

< 2.9

< 4.1

< 6.6

< 4.0

< 3.1

< 2.6

< 2.9

< 17.9

< 10.8

< 3.9

< 1.8 DWW-3013 DWW-3639 06-19-17 07-18-17

< 146

< 183

< 0.3

< 0.5

< 3.7

< 3.2

< 4.6

< 7.4

< 6.8

< 3.1

< 5.6

< 2.8

< 5.2

< 1.8

< 5.6

< 3.2

< 6.9

< 7.1

< 7.7

< 6,8

< 5.2

< 4.7

< 3.1

< 4.7

< 23.3

< 19.6

< 4.9

< 4.7 13-3 DWW-1542 04-13-17

< 147

< 0.3

< 2.4

< 4.2

< 1.3

< 1.9

< 5.4

< 1.8

< 2.7

< 4.3

< 2.4

< 3.4

< 10.6

< 2.5 DWW-4270 08-16-17

< 147

< 0.4

< 2.7

< 5.8

< 1.8

< 2.4

< 3.8

< 2.8

< 3.6

< 6.5

< 3.0

< 3.3

< 12.9

< 1.9

Table 13. Well water samples, analyses for gamma emitting isotopes iodine-131 and tritium.

Location Lab Code Collection: Monthly Units: pCi/L DWW-4885 Date Collected 09-20-17 H-3

< 183 1-131

< 0.2 Mn-54

< 1.3 Fe-59

< 4.7 Co-58

< 2.6 Co-60

< 2.3 Zn-65

< 2.6 Nb-95

< 2.9 Zr-95

< 4.2 1-131

< 5.6 Cs-134

< 3.4 Cs-137

< 3.6 Ba-140

< 16.3 La-140

< 3.4 D-53 Treated Municipal Water, Drinking Water DWW-5611 DWW-6057 10-18-17 11-13-17

< 154

< 146

< 0.3

< 2.7

< 4.7

< 4.9

< 2.5

< 2.1

< 1.2

< 2.5

< 3.2

< 1.7

< 2.2

< 2.7

< 4.2

< 4.0

< 5.2

< 4.6

< 2.8

< 3.5

< 2.4

< 3.0

< 15.2

< 11.3

< 3.0

< 2.1 13-4 DWW-6574 12-20-17

< 154

< 0.4

< 3.7

< 5.4

< 3.4

< 2.5

< 6.6

< 2.7

< 6.5

< 7.2

< 4.1

< 3.7

< 15.0

< 2.5

Table 13. Well water samples, analyses for gamma emitting isotopes iodine-131 and tritium.

Location Lab Code Collection: Monthly Units: pCi/L DWW-246 Date Collected 01-18-17 H-3

< 179 1-131

< 0.4 Mn-54

< 1.8 Fe-59

< 6.1 Co-58

< 3.1 Co-60

< 1.7 Zn-65

< 4.8 Nb-95

< 2.3 Zr-95

< 5.0 1-131

< 3.5 Cs-134

< 2.9 Cs-137

< 2.5 Ba-140

< 9.9 La-140

< 2.1 Lab Code DWW-2114 Date Collected 05-11-17 H-3

< 151 1-131

< 0.4 Mn-54

< 3.5 Fe-59

< 2.6 Co-58

< 3.5 Co-60

< 3.0 Zn-65

< 4.2 Nb-95

< 3.2 Zr-95

< 4.4 1-131

< 5.2 Cs-134

< 3.4 Cs-137

< 2.5 Ba-140

< 12.6 La-140

< 2.2 D-54 Untreated Municipal Water, Drinking Water DWW-590 DWW-1210 02-13-17 03-27-17

< 154

< 151

< 0.5

< 0.3

< 1.7

< 2.5

< 2.6

< 4.7

< 2.3

< 2.2

< 1.6

< 2.6

< 4.8

< 5.6

< 2.3

< 2.4

< 3.3

< 6.1

< 5.1

< 4.5

< 3.0

< 3.7

< 2.6

< 13.2

< 12.3

< 2.4

< 2.4 DWW-3014 DWW-3640 06-19-17 07-18-17

< 146

< 183

< 0.2

< 0.3

< 2.8

< 2.1

< 5.3

< 3.7

< 2.8

< 2.0

< 1.8

< 2.2

< 4.1

< 3.5

< 1.6

< 2.6

< 4.4

< 2.9

< 4.5

< 4.7

< 3.6

< 2.8

< 2.0

< 2.2

< 16.4

< 11.0

< 1.9

< 1.1 13-5 DWW-1543 04-13-17

< 147

< 0.4

< 2.3

< 2.5

< 1.6

< 2.9

< 4.2

< 2.2

< 4.2

< 4.9

< 2.8

< 2.5

< 8.0

< 2.1 DWW-4271 08-16-17

< 144

< 0.4

< 2.4

< 4.9

< 1.4

< 1.7

< 4.4

< 2.9

< 3.9

< 5.7

< 3.3

< 2.6

< 15.5

< 2.9

Table 13. Well water samples, analyses for gamma emitting isotopes iodine-131 and tritium.

Location Lab Code Collection: Monthly Units: pCi/L DWW-4886 Date Collected 09-20-17 H-3

< 183 1-131

< 0.4 Mn-54

< 3.0 Fe-59

< 5.6 Co-58

< 3.2 Co-60

< 2.7 Zn-65

< 3.8 Nb-95

< 2.3 Zr-95

< 2.9 1-131

< 5.2 Cs-134

< 3.5 Cs-137

< 2.4 Ba-140

< 11.2 La-140

< 3.1 D-54 Untreated Municipal Water, Drinking Water DWW-5612 DWW-6058 10-18-17 11-13-17

< 154

< 146

< 0.3

< 2.5

< 2.2

< 6.1

< 5.4

< 3.9

< 2.5

< 3.8

< 1.6

< 4.2

< 5.2

< 3.4

< 2.1

< 7.0

< 5.8

< 8.8

< 4.5

< 4.4

< 3.5

< 3.2

< 1.9

< 17.2

< 15.5

< 2.8

< 2.7 13-6 DWW-6575 12-21-17

< 154

< 0.4

< 2.2

< 6.0

< 3.1

< 2.5

< 4.8

< 3.0

< 4.0

< 5.3

< 3.1

< 3.0

< 13.8

< 1.7

Table 13. Well water samples, analyses for gamma emitting isotopes iodine-131 and tritium.

Location Lab Code Collection: Quarterly Units: pCi/L DWW-591 Date Collected 02-13-17 H-3

< 154 1-131

< 0.4 Mn-54

< 3.4 Fe-59

< 8.5 Co-58

< 3.2 Co-60

< 2.2 Zn-65

< 3.1 Nb-95

< 4.7 Zr-95

< 4.2 1-131

< 11.4 Cs-134

< 4.2 Cs-137

< 3.7 Ba-140

< 21.2 La-140

< 3.4 Location Lab Code DWW-660 Date Collected 02-13-17 H-3

< 187 1-131

< 0.3 Mn-54

< 2.8 Fe-59

< 7.6 Co-58

< 4.3 Co-60

< 2.7 Zn-65

< 5.5 Nb-95

< 3.1 Zr-95

< 6.3 1-131

< 8.0 Cs-134

< 3.9 Cs-137

< 3.1 Ba-140

< 22.7 La-140

< 3.7 D-55 On-site Treated Drinking Water DWW-2115 DWW-4272 05-11-17 08-16-17

< 151

< 144

< 0.4

< 0.2

< 1.5

< 2.7

< 3.5

< 7.0

< 2.2

< 2.8

< 1.7

< 3.5

< 4.8

< 6.8

< 2.7

< 3.2

< 4.5

< 5.8

< 4.9

< 7.8

< 3.0

< 4.2

< 2.5

< 2.9

< 10.6

< 18.3

< 1.2

< 2.2 D-57 Untreated Drinking Water DWW-2116 DWW-4273 05-11-17 08-14-17

< 151

< 144

< 0.3

< 2.3

< 2.9

< 3.1

< 3.3

< 2.0

< 2.1

< 2.5

< 1.7

< 5.2

< 2.6

< 2.0

< 2.4

< 5.6

< 4.8

< 4.4

< 5.7

< 3.0

< 2.8

< 3.0

< 2.1

< 11.8

< 19.3

< 4.3

< 2.6 13-7 DWW-6059 11-13-17

< 146

< 0.2

< 3.2

< 5.0

< 1.9

< 2.2

< 6.1

< 3.9

< 5.9

< 4.5

< 3.9

< 3.6

< 13.4

< 3.2 DWW-6060 11-13-17

< 146

< 0.2

< 3.4

< 6.8

< 3.3

< 2.9

< 4.4

< 2.2

< 4.1

< 5.0

< 3.2

< 3.8

< 14.3

< 2.8

Table 13. Well water samples, analyses for gamma emitting isotopes iodine-131 and tritium.

Location Lab Code Collection: Quarterly Units: pCi/L DWW-661 Date Collected 02-16-17 H-3

< 187 1-131

< 0.4 Mn-54

< 2.4 Fe-59

< 4.4 Co-58

< 2.7 Co-60

< 2.6 Zn-65

< 3.7 Nb-95

< 2.1 Zr-95

< 3.6 1-131

< 4.1 Cs-134

< 2.9 Cs-137

< 3.3 Ba-140

< 13.3 La-140

< 2.4 Location Lab Code DWW-662 Date Collected 02-16-17 H-3

< 187 1-131

< 0.3 Mn-54

< 2.3 Fe-59

< 3.6 Co-58

< 2.7 Co-60

< 2.4 Zn-65

< 2.6 Nb-95

< 3.0 Zr-95

< 3.8 1-131

< 5.1 Cs-134

< 3.1 Cs-137

< 2.7 Ba-140

< 15.9 La-140

< 3.7 D-58 Untreated Drinking Water DWW-2117 DWW-4274 05-11-17 08-14-17

< 151

< 144

< 0.3

< 0.4

< 5.3

< 2.0

< 8.0

< 3.8

< 6.5

< 1.7

< 4.7

< 2.5

< 7.2

< 4.7

< 5.5

< 3.5

< 5.7

< 3.1

< 8.4

< 5.2

< 6.4

< 2.6

< 5.0

< 2.3

< 21.5

< 16.9

< 7.2

< 1.8 D-72(C) Untreated Drinking Water DWW-2118 DWW-4275 05-11-17 08-14-17

< 151

< 144

< 0.4

< 0.3

< 3.4

< 1.5

< 7.4

< 4.0

< 3.9

< 2.1

< 3.4

< 1.9

< 7.2

< 3.2

< 4.6

< 3.1

< 6.2

< 4.0

< 8.0

< 6.0

< 4.0

< 3.5

< 5.0

< 2.3

< 15.6

< 14.9

< 1.5

< 2.6 13-8 DWW-6061 11-13-17

< 146

< 0.2

< 3.5

< 4.8

< 4.0

< 3.2

< 6.9

< 3.5

< 6.1

< 3.2

< 4.4

< 2.8

< 9.4

< 3.8 DWW-6062 11-13-17

< 146

< 0.5

< 2.8

< 4.6

< 2.9

< 1.9

< 1.5

< 2.4

< 5.2

< 3.8

< 3.6

< 3.8

< 11.8

< 3.7

Table 14. Vegetation (broadleaf), analyses for iodine-131 and other gamma-emitting isotopes.

Collection: Annually Units: pCi/g wet Location D-16 Lab Code DVE-4630 Date Collected 09-06-17 Sample Type Broadleaf K-40 4.07 +/- 0.41 Mn-54

< 0.010 Fe-59

< 0.019 Co-58

< 0.014 Co-60

< 0.009 Zn-65

< 0.028 Nb-95

< 0.008 Zr-95

< 0.025 Ru-103

< 0.013 Ru-106

< 0.10 1-131

< 0.025 Cs-134

< 0.015 Cs-137

< 0.013 Ce-141

< 0.025 Ce-144

< 0.095 Location D-108 Lab Code DVE-4634 Date Collected 09-07-17 Sample Type Cabbage K-40 2.67 +/- 0.29 Mn-54

< 0.004 Fe-59

< 0.013 Co-58

< 0.005 Co-60

< 0.009 Zn-65

< 0.011 Nb-95

< 0.013 Zr-95

< 0.017 Ru-103

< 0.011 Ru-106

< 0.090 1-131

< 0.016 Cs-134

< 0.010 Cs-137

< 0.008 Ce-141

< 0.019 Ce-144

< 0.075 D-96 D-108 DVE-4631 DVE-4632 09-07-17 09-07-17 Broadleaf Kale 4.65 +/- 0.51 4.10 +/- 0.41

< 0.017

< 0.010

< 0.032

< 0.022

< 0.016

< 0.010

< 0.015

< 0.008

< 0.035

< 0.020

< 0.016

< 0.008

< 0.024

< 0.020

< 0.011

< 0.015

< 0.16

< 0.085

< 0.022

< 0.024

< 0.020

< 0.012

< 0.020

< 0.012

< 0.021

< 0.029

< 0.097

< 0.082 D-110 D-118 DVE-3502 DVE-3503 07-14-17 07-14-17 Rhubarb Cabbage 4.56 +/- 0.26 2.00 +/- 0.16

< 0.008

< 0.002

< 0.012

< 0.011

< 0.009

< 0.003

< 0.005

< 0.004

< 0.016

< 0.007

< 0.009

< 0.006

< 0.013

< 0.007

< 0.006

< 0.004

< 0.055

< 0.014

< 0.013

< 0.008

< 0.005

< 0.009

< 0.004

< 0.013

< 0.010

< 0.050

< 0.037 14-1 D-108 DVE-4633 09-07-17 Broad leaf 4.94 +/- 0.40

< 0.012

< 0.022

< 0.012

< 0.009

< 0.019

< 0.009

< 0.016

< 0.011

< 0.12

< 0.018

< 0.012

< 0.014

< 0.018

< 0.082 D-118 DVE-4635 09-08-17 Cabbage 1.93 +/- 0.20

< 0.007

< 0.014

< 0.006

< 0.008

< 0.013

< 0.008

< 0.009

< 0.007

< 0.064

< 0.011

< 0.007

< 0.008

< 0.019

< 0.041

Table 14. Vegetation (broadleaf), analyses for iodine-131 and other gamma-emitting isotopes.

Collection: Annually Units: pCi/g wet Location D-138 Lab Code DVE-3504 Date Collected 07-14-17 Sample Type Cabbage K-40 3.43 +/- 0.25 Mn-54

< 0.007 Fe-59

< 0.013 Co-58

< 0.005 Co-60

< 0.005 Zn-65

< 0.013 Nb-95

< 0.006 Zr-95

< 0.011 Ru-103

< 0.004 Ru-106

< 0.055 1-131

< 0.011 Cs-134

< 0.007 Cs-137

< 0.006 Ce-141

< 0.010 Ce-144

< 0.039 14-2

Table 15. Vegetation (hay and grain), analyses for gamma-emitting isotopes.

Collection: Annually Units: pCi/g wet Location D-57 Lab Code DVE-4636 Date Collected 09-07-17 Sample Type Hay K-40 9.62 +/- 0.54 Mn-54

< 0.027 Fe-59

< 0.049 Co-58

< 0.025 Co-60

< 0.015 Zn-65

< 0.050 Nb-95

< 0.019 Zr-95

< 0.030 Ru-103

< 0.020 Ru-106

< 0.17 1-131

< 0.042 Cs-134

< 0.023 Cs-137

< 0.028 Ce-141

< 0.043 Ce-144

< 0.14 Location D-96 Lab Code DYE-5227 Date Collected 10-05-17 Sample Type Soybeans K-40 12.88 +/- 0.44 Mn-54

< 0.010 Fe-59

< 0.020 Co-58

< 0.009 Co-60

< 0.009 Zn-65

< 0.019 Nb-95

< 0.009 Zr-95

< 0.016 Ru-103

< 0.006 Ru-106

< 0.085 1-131

< 0.007 Cs-134

< 0.008 Cs-137

< 0.008 Ce-141

< 0.011 Ce-144

< 0.052 D-57 D-57 DVE-4637 DVE-5225 09-07-17 10-04-17 Soybeans Soybeans 3.46 +/- 0.41 15.74 +/- 0.76

< 0.012

< 0.020

< 0.018

< 0.041

< 0.019

< 0.020

< 0.015

< 0.021

< 0.022

< 0.050

< 0.019

< 0.024

< 0.019

< 0.033

< 0.013

< 0.021

< 0.14

< 0.24

< 0.030

< 0.041

< 0.017

< 0.D19

< 0.015

< 0.020

< 0.032

< 0.026

< 0.083

< 0.12 D-96 D-109 DYE-5228 DYE-4639 10-05-17 09-06-17 Corn Hay 2.82 +/- 0.24 28.94 +/- 1.68

< 0.005

< 0.044

< 0.012

< 0.138

< 0.008

< 0.041

< 0.007

< 0.033

< 0.014

< 0.080

< 0.008

< 0.035

< 0.015

< 0.060

< 0.008

< 0.029

< 0.071

< 0.364

< 0.014

< 0.055

< 0.007

< 0.047

< 0.007

< 0.046

< 0.D15

< 0.095

< 0.063

< 0.372 15-1 D-57 D-96 DVE-5226 DVE-4638 10-04-17 09-07-17 Corn Hay 2.67 +/- 0.20 16.83 +/- 0.62

< 0.006

< 0.024

< 0.008

< 0.053

< 0.003

< 0.022

< 0.006

< 0.021

< 0.007

< 0.053

< 0.007

< 0.029

< 0.009

< 0.027

< 0.008

< 0.022

< 0.038

< 0.25

< 0.010

< 0.052

< 0.006

< 0.023

< 0.005

< 0.023

< 0.011

< 0.053

< 0.042

< 0.17 D-109 D-110 DVE-5230 DYE-4640 10-06-17 09-06-17 Corn Hay 2.34 +/- 0.20 23.42 +/- 0.64

< 0.006

< 0.014

< 0.005

< 0.038

< 0.006

< 0.017

< 0.003

< 0.015

< 0.014

< 0.036

< 0.005

< 0.012

< 0.008

< 0.033

< 0.006

< 0.018

< 0.059

< 0.15

< 0.011

< 0.032

< 0.006

< 0.016

< 0.005

< 0.018

< 0.010

< 0.034

< 0.041

< 0.14

Table 15. Vegetation (hay and grain), analyses for gamma-emitting isotopes.

Collection: Annually Units: pCi/g wet Location D-138 Lab Code DVE-4641 Date Collected 09-06-17 Sample Type Hay K-40 25.91 +/- 0.75 Mn-54

< 0.025 Fe-59

< 0.030 Co-58

< 0.023 Co-60

< 0.023 Zn-65

< 0.057 Nb-95

< 0.016 Zr-95

< 0.037 Ru-103

< 0.027 Ru-106

< 0.153 Cs-134

< 0.021 Cs-137

< 0.026 Ce-141

< 0.040 Ce-144

< 0.138 Control D-138 D-138 DVE-5231 DVE-5232 10-05-17 10-05-17 Soybeans Corn 14.05 +/- 0.47 2.57 +/- 0.19

< 0.010

< 0.005

< 0.030

< 0.013

< 0.009

< 0.004

< 0.006

< 0.026

< 0.011

< 0.008

< 0.006

< 0.009

< 0.005

< 0.010

< 0.005

< 0.071

< 0.048

< 0.010

< 0.006

< 0.009

< 0.005

< 0.018

< 0.012

< 0.056

< 0.037 15-2

Table 16. Surface water samples, analyses for iodine-131, tritium and gamma-emitting isotopes.

Collection:

Monthly Units:

pCi/L Location:

D-49 Lab Code DSW-238 DSW-554 DSW-1070 DSW-1611 DSW-2248 DSW-3183 Date Collected 01-18-17 02-13-17 03-16-17 04-17-17 05-15-17 06-28-17 H-3

< 179

< 156

< 145

< 155

< 149 1-131 (Chemistry)

< 0.4

< 0.5

< 0.3

< 0.2

< 0.5

< 0.4 Mn-54

< 2.8

< 2.3

< 2.2

< 2.3

< 2.0

< 3.3 Fe-59

< 6.0

< 5.5

< 3.4

< 3.7

< 4.1

< 4.6 Co-58

< 1.3

< 2.3

< 2.5

< 1.9

< 1.4

< 3.5 Co-60

< 2.4

< 2.6

< 1.4

< 2.5

< 3.0 Zn-65

< 4.8

< 3.9

< 6.6

< 3.3

< 2.9

< 5.4 Nb-95

< 3.4

< 2.6

< 2.4

< 2.7

< 2.8

< 4.8 Zr-95

< 5.3

< 3.4

< 4.8

< 3.7

< 3.9

< 3.6 1-131

< 3.7

< 2.8

< 4.5

< 3.5

< 3.0

< 5.5 Cs-134

< 3.1

< 2.3

< 3.1

< 3.7

< 3.2

< 3.5 Cs-137

< 2.1

< 1.6

< 3.0

< 2.7

< 2.1

< 2.8 Ba-140

< 9.3

< 8.5

< 12.7

< 8.4

< 12.1

< 17.6 La-140

< 1.7

< 2.4

< 1.8

< 2.4

< 1.7

< 3.1 Lab Code DSW-3633 DSW-4264 DSW-4880 DSW-5605 DSW-6133 DSW-6552 Date Collected 07-18-17 08-16-17 09-21-17 10-18-17 11-16-17 12-19-17 H-3

< 183

< 144

< 183

< 154

< 151

< 156 1-131 (Chemistry)

< 0.4

< 0.3

< 0.4

< 0.3 Mn-54

< 1.7

< 3.3

< 2.2

< 2.3

< 1.8

< 1.8 Fe-59

< 4.7

< 6.8

< 3.1

< 4.2

< 6.6

< 3.3 Co-58

< 2.4

< 2.0

< 1.8

< 1.6

< 2.7

< 2.3 Co-60

< 1.6

< 2.6

< 2.3

< 3.0

< 2.8

< 2.4 Zn-65

< 5.2

< 3.9

< 3.0

< 2.3

< 4.0

< 3.2 Nb-95

< 3.2

< 2.3

< 1.7

< 3.3

< 4.4

< 3.3 Zr-95

< 4.9

< 5.3

< 3.0

< 5.1

< 3.4

< 3.3 1-131

< 3.5

< 5.3

< 3.3

< 3.7

< 6.0

< 3.4 Cs-134

< 3.0

< 3.5

< 2.6

< 3.1

< 4.4

< 2.6 Cs-137

< 1.8

< 2.2

< 1.4

< 3.1

< 2.4

< 3.0 Ba-140

< 13.2

< 17.3

< 12.7

< 15.8

< 17.8

< 12.5 La-140

< 1.4

< 2.2

< 1.1

< 2.0

< 2.5

< 2.9 16-1

Table 16. Surface water samples, analyses for tritium and gamma-emitting isotopes.

Collection:

Monthly Units:

pCi/L Location:

D-50 Lab Code DSW-239 DSW-555 DSW-1071 DSW-1612 DSW-2249 DSW-3184 Date Collected 01-18-17 02-13-17 03-16-17 04-17-17 05-15-17 06-28-17 H-3

< 179

< 156

< 145

< 155

< 149 Mn-54

< 3.6

< 1.6

< 2.4

< 3.6

< 2.4 Fe-59

< 3.3

< 2.5

< 6.2

< 4.9

< 7.1

< 4.4 Co-58

< 2.4

< 2.6

< 2.4

< 2.8

< 3.0

< 2.1 Co-60

< 1.8

< 1.7

< 2.6

< 1.8

< 2.1

< 2.1 Zn-65

< 2.2

< 6.1

< 4.2

< 3.0

< 3.9

< 5.6 Nb-95

< 2.2

< 2.9

< 1.6

< 2.5

< 3.0

< 3.5 Zr-95

< 3.3

< 4.4

< 2.8

< 2.9

< 4.3

< 2.8 1-131

< 5.2

< 3.2

< 3.4

< 9.1

< 3.5 Cs-134

< 2.8

< 2.7

< 2.5

< 3.9

< 3.5

< 3.3 Cs-137

< 2.3

< 2.9

< 3.3

< 2.2

< 3.1

< 2.1 Ba-140

< 14.4

< 9.0

< 14.0

< 17.2

< 12.8

< 11.7 La-140

< 2.5

< 2.6

< 2.1

< 1.8

< 3.6

< 2.7 Lab Code DSW-3634 DSW-4265 DSW-4881 DSW-5606 DSW-6134 DSW-6553 Date Collected 07-18-17 08-16-17 09-21-17 10-18-17 11-16-17 12-19-17 H-3

< 183

< 144

< 183

< 154

< 151

< 156 Mn-54

< 2.2

< 3.3

< 2.6

< 1.8

< 2.9 Fe-59

< 6.5

< 4.3

< 5.0

< 2.0

< 5.4

< 4.4 Co-58

< 2.3

< 2.9

< 2.0

< 1.9

< 2.1

< 3.6 Co-60

< 2.1

< 2.5

< 2.7

< 0.9

< 3.3

< 3.3 Zn-65

< 4.3

< 4.2

< 1.5

< 2.5

< 2.4

< 2.7 Nb-95

< 3.1

< 2.6

< 2.1

< 3.3

< 2.9

< 2.1 Zr-95

< 3.2

< 4.3

< 4.4

< 5.1

< 5.0

< 4.4 1-131

< 8.0

< 4.3

< 4.0

< 5.4

< 4.7

< 3.8 Cs-134

< 3.2

< 3.0

< 3.7

< 2.9

< 3.2

< 3.6 Cs-137

< 2.7

< 2.4

< 3.7

< 2.8

< 2.7

< 3.8 Ba-140

< 15.2

< 16.2

< 14.0

< 11.4

< 15.7

< 15.8 La-140

< 2.8

< 2.3

< 2.9

< 3.9

< 2.5

< 2.9 16-2

Table 16. Surface water samples, analyses for tritium and gamma-emitting isotopes.

Collection:

Monthly Units:

pCi/L Location:

D-51 Lab Code DSW-240 DSW-556 DSW-1073 DSW-1613 DSW-2250 DSW-3185 Date Collected 01-18-17 02-13-17 03-16-17 04-17-17 05-15-17 06-28-17 H-3

< 179

< 156

< 145

< 155

< 149 Mn-54

< 5.6

< 2.7

< 2.4

< 2.0

< 3.0

< 3.0 Fe-59

< 7.0

< 1.9

< 7.2

< 3.9

< 6.9

< 5.1 Co-58

< 3.4

< 2.1

< 3.3

< 2.8

< 3.1

< 2.1 Co-60

< 4.7

< 1.8

< 2.3

< 3.3

< 2.0 Zn-65

< 6.5

< 4.6

< 5.8

< 3.1

< 2.1

< 2.8 Nb-95

< 3.1

< 1.8

< 3.5

< 2.3

< 3.6

< 3.0 Zr-95

< 7.7

< 4.2

< 5.0

< 4.4

< 7.3

< 4.8 1-131

< 3.9

< 2.6

< 6.1

< 4.9

< 9.0

< 5.7 Cs-134

< 4.2

< 2.6

< 3.1

< 3.5

< 4.4

< 3.1 Cs-137

< 2.8

< 3.1

< 4.2

< 1.6

< 4.3

< 2.6 Ba-140

< 9.5

< 9.0

< 19.0

< 10.4

< 24.2

< 17.9 La-140

< 4.4

< 2.0

< 3.0

< 1.5

< 2.4

< 2.1 Lab Code DSW-3635 DSW-4266 DSW-4882 DSW-5607 DSW-6135 DSW-6554 Date Collected 07-18-17 08-16-17 09-21-17 10-18-17 11-16-17 12-19-17 H-3

< 183

< 144

< 183

< 154

< 151

< 156 Mn-54

< 3.3

< 3.2

< 3.1

< 1.6

< 2.2

< 1.3 Fe-59

< 4.2

< 3.5

< 3.9

< 2.5

< 4.6

< 5.6 Co-58

< 2.0

< 2.1

< 2.0

< 1.5

< 1.9

< 2.4 Co-60

< 1.4

< 1.8

< 2.3

< 2.0

< 2.6

< 2.4 Zn-65

< 3.5

< 2.3

< 1.9

< 5.1

< 3.3

< 2.5 Nb-95

< 1.9

< 3.2

< 2.1

< 3.0

< 3.2

< 1.5 Zr-95

< 2.6

< 3.5

< 5.4

< 3.6

< 3.5

< 3.5 1-131

< 4.5

< 5.2

< 5.8

< 5.0

< 4.7

< 4.3 Cs-134

< 2.8

< 3.7

< 3.2

< 3.3

< 3.1

< 2.5 Cs-137

< 1.9

< 2.8

< 2.7

< 2.8

< 3.5

< 2.8 Ba-140

< 20.9

< 18.9

< 14.0

< 13.5

< 15.3

< 17.3 La-140

< 2.4

< 3.4

< 1.9

< 2.8

< 2.7

< 1.7 16-3

Table 16. Surface water samples, analyses for iodine-131, tritium and gamma-emitting isotopes.

Collection:

Monthly Units:

pCi/L Location:

D-61 Lab Code DSW-241 DSW-557 DSW-1074 DSW-1614 DSW-2252 DSW-3186 Date Collected 01-18-17 02-13-17 03-16-17 04-17-17 05-15-17 06-28-17 H-3

< 179

< 156

< 145

< 155

< 149 I-131(Chemistry)

< 0.4

< 0.3

< 0.5 Mn-54

< 1.8

< 2.4

< 1.8

< 2.2

< 2.3

< 2.4 Fe-59

< 2.3

< 5.1

< 3.1

< 5.8

< 3.8

< 2.7 Co-58

< 1.9

< 2.2

< 1.8

< 1.4

< 1.7

< 2.5 Co-60

< 1.4

< 2.3

< 2.2

< 1.1

< 1.8

< 2.0 Zn-65

< 4.0

< 3.9

< 2.8

< 2.9

< 3.0

< 3.4 Nb-95

< 2.4

< 3.5

< 3.6

< 2.2

< 3.3

< 2.6 Zr-95

< 5.1

< 6.2

< 3.7

< 3.3

< 2.3

< 4.3 1-131

< 3.3

< 3.7

< 4.0

< 3.3

< 4.4

< 3.4 Cs-134

< 2.7

< 3.5

< 3.0

< 2.9

< 2.7

< 3.2 Cs-137

< 2.1

< 2.5

< 3.5

< 2.4

< 2.5

< 3.1 Ba-140

< 8.2

< 10.8

< 8.8

< 14.2

< 12.1

< 13.9 La-140

< 2.5

< 2.6

< 1.5

< 2.0

< 1.6

< 1.6 Lab Code DSW-3636 DSW-4267 DSW-4883 DSW-5608 DSW-6136 DSW-6555 Date Collected 07-18-17 08-16-17 09-21-17 10-18-17 11-16-17 12-19-17 H-3

< 183

< 144

< 183

< 154

< 151

< 156 1-131 (Chemistry)

< 0.3

< 0.4

< 0.3

< 0.4

< 0.2 Mn-54

< 6.1

< 3.5

< 2.2

< 5.7

< 3.5

< 2.3 Fe-59

< 7.7

< 5.0

< 4.0

< 8.3

< 4.1

< 2.0 Co-58

< 5.2

< 1.5

< 1.7

< 3.0

< 2.3

< 2.7 Co-60

< 4.8

< 1.7

< 2.3

< 4.5

< 2.7

< 2.4 Zn-65

< 4.1

< 6.0

< 2.4

< 9.2

< 3.3

< 4.8 Nb-95

< 2.8

< 2.7

< 2.5

< 3.2

< 2.1

< 2.0 Zr-95

< 8.1

< 4.9

< 3.8

< 7.5

< 5.2

< 3.8 1-131

< 5.5

< 6.3

< 2.9

< 8.1

< 3.4

< 2.5 Cs-134

< 6.3

< 2.8

< 2.5

< 5.9

< 3.2

< 3.2 Cs-137

< 3.2

< 3.5

< 2.9

< 3.1

< 3.3

< 3.9 Ba-140

< 24.3

< 14.0

< 11.4

< 17.1

< 16.3

< 11.5 La-140

< 6.2

< 3.0

< 2.1

< 5.1

< 2.1

< 3.4 16-4

Table 16. Surface water samples, analyses for tritium and gamma-emitting isotopes.

Collection:

Monthly Units:

pCi/L Location:

D-99 Lab Code DSW-242 DSW-558 DSW-1192 DSW-1615 DSW-2253 DSW-3015 Date Collected 01-18-17 02-13-17 03-27-17 04-17-17 05-15-17 06-19-17 H-3

< 179

< 156

< 151

< 155

< 146 Mn-54

< 1.3

< 3.1

< 2.2

< 2.1

< 3.1

< 4.4 Fe-59

< 5.7

< 5.4

< 4.6

< 5.3

< 6.8

< 5.1 Co-58

< 1.8

< 3.5

< 2.2

< 1.9

< 3.4

< 3.4 Co-60

< 1.8

< 2.7

< 2.4

< 2.8

< 2.6

< 5.0 Zn-65

< 1.4

< 5.7

< 1.6

< 3.7

< 3.2

< 4.5 Nb-95

< 2.2

< 4.0

< 2.2

< 2.6

< 3.6

< 4.5 Zr-95

< 3.8

< 4.3

< 7.1

< 2.9

< 7.2

< 8.0 1-131

< 4.7

< 7.4

< 3.6

< 7.8

< 7.7 Cs-134

< 2.8

< 3.1

< 3.5

< 3.0

< 4.2

< 5.4 Cs-137

< 3.0

< 2.5

< 3.6

< 3.2

< 4.5

< 5.3 Ba-140

< 14.4

< 11.2

< 10.3

< 16.9

< 23.5

< 22.5 La-140

< 4.0

< 3.5

< 3.7

< 2.4

< 2.8

< 5.1 Lab Code DSW-3637 DSW-4268 DSW-4884 DSW-5609 DSW-6137 DSW-6556 Date Collected 07-18-17 08-16-17 09-21-17 10-18-17 11-16-17 12-19-17 H-3

< 183

< 144

< 183

< 154

< 151

< 156 Mn-54

< 1.6

< 2.6

< 1.7

< 2.2

< 3.6

< 2.9 Fe-59

< 5.2

< 5.6

< 5.2

< 2.9

< 4.4

< 4.0 Co-58

< 1.8

< 2.1

< 2.7

< 2.1

< 1.6

< 2.8 Co-60

< 2.4

< 2.6

< 1.7

< 0.7

< 3.1

< 2.7 Zn-65

< 4.9

< 4.5

< 2.8

< 3.0

< 4.4

< 4.3 Nb-95

< 2.8

< 2.5

< 2.4

< 2.3

< 2.5 Zr-95

< 3.2

< 4.9

< 3.6

< 3.3

< 5.7

< 2.9 1-131

< 5.8

< 5.1

< 4.1

< 4.4

< 5.7

< 4.9 Cs-134

< 2.2

< 3.0

< 2.7

< 2.6

< 3.8

< 2.9 Cs-137

< 2.5

< 3.7

< 2.8

< 1.5

< 3.3

< 3.1 Ba-140

< 18.9

< 10.1

< 13.9

< 14.3

< 19.4

< 11.2 La-140

< 1.7

< 1.5

< 1.9

< 3.5

< 1.5

< 3.4 16-5

Table 17. Surface water, analysis for strontium.

Collection: Quarterly composites of monthly samples.

Units: pCi/L Location 0-49 Period 1st Qtr.

2nd Qtr.

3rd Qtr.

4th Qtr.

Lab Code OSW-1100 OSW-3193 OSW-4945 OSW-6631 Sr-89

< 0.44

< 0.58

< 0.86

< 0.67 Sr-90

< 0.46

< 0.47

< 0.49

< 0.47 Location 0-61 Period 1st Qtr.

2nd Qtr.

3rd Qtr.

4th Qtr.

Lab Code DSW-1101 DSW-3194 OSW-4946 OSW-6632 Sr-89

< 0.53

< 0.63

< 0.68

< 0.61 Sr-90

< 0.53

< 0.48

< 0.73

< 0.48 17-1

Table 18. Fish, analyses of edible portion for gamma-emitting isotopes.

Collection: Semiannually Units: pCi/g wet Location Lab Code OF-2944 Date Collected 06-15-17 Northern Pike Sample Type K-40 2.65 +/- 0.42 Mn-54

< O.D15 Fe-59

< 0.055 Co-58

< 0.015 Co-60

< 0.006 Zn-65

< 0.033 Nb-95

< 0.025 Zr-95

< 0.035 Ru-103

< 0.019 Ru-106

< 0.13 Cs-134

< 0.019 Cs-137

< 0.011 Ce-141

< 0.044 Ce-144

< 0.080 Upstream, D-49 OF-2945 06-15-17 Largemouth Bass 3.09 +/- 0.45

< 0.016

< 0.037

< 0.014

< 0.016

< 0.022

< 0.028

< 0.027

< 0.020

< 0.12

< 0.018

< 0.010

< 0.038

< 0.081 18-1 OF-4332 OF-4333 08-18-17 08-18-17 Channel Largemouth Catfish Bass 2.85 +/- 0.39 3.62 +/- 0.42

< 0.014

< 0.016

< 0.058

< 0.056

< 0.020

< 0.029

< 0.020

< 0.015

< 0.043

< 0.036

< 0.055

< 0.040

< 0.036

< 0.054

< 0.032

< 0.045

< 0.16

< 0.14

< 0.018

< 0.019

< 0.018

< 0.015

< 0.075

< 0.085

< 0.12

< 0.11

Table 18. Fish, analyses of edible portion for gamma-emitting isotopes.

Collection: Semiannually Units: pCi/g wet Location Lab Code OF-2946 Date Collected 06-15-17 Northern Pike Sample Type K-40 3.00 +/- 0.78 Mn-54

< 0.056 Fe-59

< 0.16 Co-58

< 0.080 Co-60

< 0.034 Zn-65

< 0.078 Nb-95

< 0.084 Zr-95

< 0.12 Ru-103

< 0.10 Ru-106

< 0.43 Cs-134

< 0.054 Cs-137

< 0.050 Ce-141

< 0.11 Ce-144

< 0.26 Downstream, D-61 OF-2947 06-15-17 Largemouth Bass 3.03 +/- 0.38

< 0.012

< 0.029

< 0.012

< 0.006

< 0.032

< 0.020

< 0.037

< 0.027

< 0.13

< 0.014

< 0.011

< 0.033

< 0.092 18-2 OF-4335 OF-4336 08-18-17 08-18-17 Channel Small mouth Catfish Bass 2.98 +/- 0.38 2.80 +/- 0.37

< O.D15

< 0.011

< 0.030

< 0.063

< 0.016

< 0.013

< 0.010

< 0.016

< 0.035

< 0.042

< 0.040

< 0.031

< 0.025

< 0.033

< 0.023

< 0.030

< 0.14

< 0.016

< 0.017

< 0.009

< 0.056

< 0.052

< 0.068

< 0.095

Table 19. River sediment, analysis for gamma-emitting isotopes.

Location Lab Code Collection: Semiannually Units: pCi/g dry Date Collected K-40 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 Location Lab Code Date Collected K-40 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 D-49 (Control)

DBS-1659 04-19-17 7.88 +/- 0.50

< 0.016

< 0.055

< 0.019

< 0.006

< 0.038

< 0.024

< 0.034

< 0.028

< 0.098

< 0.012

< 0.010

< 0.063

< 0.11 D-51 (Discharge)

DBS-1660 04-19-17 8.45 +/- 0.52

< 0.019

< 0.072

< 0.019

< 0.013

< 0.038

< 0.021

< 0.045

< 0.023

< 0.14

< 0.012

< 0.017

< 0.046

< 0.090 The Cs-137 detected is from nuclear weapons testing (see Table 21).

19-1 DBS-6053 11-13-17 9.20 +/- 0,68

< 0.028

< 0.038

< 0.023

< 0.020

< 0.052

< 0.036

< 0.050

< 0.035

< 0.17

< 0.023 0.079 +/- 0.029

< 0.066

< 0.18 DBS-6055 11-13-17 7.52 +/- 0.50

< 0.022

< 0.044

< 0.023

< 0.013

< 0.043

< 0.027

< 0.049

< 0.027

< 0.093

< 0.016

< 0.020

< 0.065

< 0.11

Table 19. River sediment, analysis for gamma-emitting isotopes.

Location Lab Code Collection: Semiannually Units: pCi/g dry Date Collected K-40 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 D-107A (North Drainage Ditch)

DBS-1661 DBS-6056 04-19-17 11-13-17 8.07 +/- 0.48 8.53 +/- 0.50

< 0.016

< 0.015

< 0.030

< 0.034

< 0.022

< 0.016

< 0.013

< 0.009

< 0.043

< 0.036

< 0.026

< 0.028

< 0.035

< 0.028

< 0.016

< 0.15

< 0.11

< 0.011

< 0.010

< 0.018

< O.D15

< 0.054

< 0.047

< 0.11

< 0.095 19-2

Table 20. Soil, analysis for strontium-90 and gamma-emitting isotopes.

Location Lab Code Collection: Annually Units: pCi/g dry Date Collected Sr-90 H-3 (pCi/L)

K-40 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 D-15a DSO-3970 08-02-17

< 0.054

< 160 12.40 +/- 0.70

< 0.021

< 0.042

< 0.027

< 0.019

< 0.047

< 0.032

< 0.045

< 0.022

< 0.14

< 0.021 0.12 +/- 0.028

< 0.078

< 0.17 D-15a DSO-6391 12-06-17

< 0.039 191 +/- 84 13.86 +/- 0.76

< 0.025

< 0.071

< 0.027

< 0.023

< 0.055

< 0.031

< 0.060

< 0.033

< 0.18

< 0.018 0.15 +/- 0.037

< 0.060

< 0.17 D-16 DSO-3971 08-02-17

< 0.064

< 160 8.98 +/- 0.55

< 0.010

< 0.041

< 0.020

< 0.013

< 0.035

< 0.022

< 0.028

< 0.015

< 0.11

< 0.011 0.12 +/- 0.020

< 0.054

< 0.074

The Duane Arnold Energy Center collected additional soil samples in Mason City, Ames and Coralville, Iowa.

The Cs-137 detected is from nuclear weapons testing. (see table 21).

20-1 D-16 DSO-6392 12-06-17

< 0.043 189 +/- 84 8.94 +/- 0.58

< 0.018

< 0.060

< 0.016

< 0.006

< 0.045

< 0.031

< 0.021

< 0.017

< 0.16

< 0.018 0.09 +/- 0.031

< 0.057

< 0.12

Table 21. Supplemental soil samples, analyses for gamma emitting isotopes, Sr-90 and tritium.

Collection: Supplemental Units: pCi/g dry The Duane Arnold Energy Center collected additional soil samples in Mason City, Ames and Coralville, Iowa.

These "Supplemental Analyses" support the conclusion that the source of Cs-137 is from nuclear weapons testing.

Location Iowa City (Coralville)

Mason City Ames Lab Code DSO-6460 DSO-6462 DSO-6579 Date Collected 12-06-17 12-07-17 12-06-17 Sr-90

< 0.042

< 0.033 H-3 (pCi/L)

< 149

< 148

< 154 K-40 13.90 +/- 0.77 11.64 +/- 0.71 11.26 +/- 0.66 Mn-54

< 0.026

< 0.025

< 0.023 Fe-59

< 0.070

< 0.042

< 0.059 Co-58

< 0.026

< 0.023

< 0.021 Co-60

< 0.022

< 0.013

< 0.017 Zn-65

< 0.056

< 0.053

< 0.056 Nb-95

< 0.048

< 0.045

< 0.042 Zr-95

< 0.056

< 0.055

< 0.035 Ru-103

< 0.028

< 0.030

< 0.032 Ru-106

< 0.16

< 0.12

< 0.12 Cs-134

< 0.017

< 0.019

< 0.016 Cs-137 0.09 +/- 0.025 0.13 +/- 0.038 0.06 +/- 0.034 Ce-141

< 0.071

< 0.064

< 0.060 Ce-144

< 0.16

< 0.15

< 0.17 21-1

Table 22.

Groundwater Protection Program Summary.

Precipitation samples for tritium analysis.

Units: pCi/L Lab Code Date H-3 Lab Code Date H-3 D-016 D-111 DP-122 01/10/17

< 176 DP-124 01/10/17

< 176 DP-448 02/02/17

< 155 DP-449 02102117

< 156 DP-883 03/03/17

< 146 DP-884 03/03/17 227 +/- 89 DP-1445 04/06/17

< 156 DP-1446 04/06/17 358 +/- 91 DP-2013 05/04/17

< 148 DP-2014 05/04/17

< 148 DP-2719 06/05/17

< 150 DP-2720 06/05/17

< 150 DP-3205 07/03/17

< 178 DP-3206 07/03/17 314 +/- 97 DP-3911 08/01/17

< 159 DP-3913 08/01/17 164 +/- 88 DP-4500 09/05/17

< 187 DP-4501 09/05/17

< 187 DP-5079 10/02/17

< 144 DP-5080 10/02/17 223 +/- 80 DP-5837 11/01/17

< 150 DP-5839 11/01/17 198 +/- 82 DP-6330 12/04/17 195 +/- 82 DP-6332 12/04/17 571 +/- 99 D-112 D-114 DP-125 01/10/17

< 176 DP-126 01/10/17

< 176 DP-450 02/02/17

< 156 DP-451 02/02/17

< 156 DP-885 03/03/17

< 146 DP-886 03/03/17 604 +/- 106 DP-1448 04/06/17

< 151 DP-1449 04/06/17

< 151 DP-2015 05/04/17 212 +/-81 DP-2017 05/04/17 210+/-81 DP-2721 06/05/17 186 +/- 84 DP-2722 06/05/17

< 150 DP-3207 07/03/17

< 178 DP-3208 07/03/17

< 178 DP-3914 08/01/17

< 159 DP-3915 08/01/17

< 159 DP-4502 09/05/17

< 187 DP-4503 09/05/17

< 187 DP-5082 10/02/17

< 144 DP-5083 10/02/17 241 +/- 81 DP-5840 11/01/17 403 +/- 92 DP-5841 11/01/17

< 150 DP-6333 12/04/17 161 +/- 80 DP-6334 12/04/17 470 +/- 95 D-127 D-128 DP-127 01/10/17 1271 +/- 133 DP-128 01/10/17 611+/-114 DP-452 02/02/17 2052+/-153 DP-453 02/02/17 532 +/- 101 DP-887 03/03/17 4435 +/-211 DP-888 03/03/17 336 +/- 94 DP-1450 04/06/17 3441 +/- 186 DP-1451 04/06/17 176 +/- 82 DP-2018 05/04/17 1707 +/- 139 DP-2019 05/04/17 628 +/- 101 DP-2723 06/05/17 1435 +/- 134 DP-2724 06/05/17 476 +/- 98 DP-3209 07/03/17 910+/-117 DP-3210 07/03/17 545 +/- 106 DP-3916 08/01/17 1047 +/- 124 DP-3917 08/01/17 290 +/- 94 DP-4504 09/05/17 859+/-118 DP-4505 09/05/17 626 +/- 110 DP-5084 10/02/17 1321 +/- 125 DP-5085 10/02/17 352 +/- 87 DP-5842 11/01/17 1218 +/- 125 DP-5843 11/01/17 850 +/- 111 DP-6335 12/04/17 2452 +/- 161 DP-6336 12/04/17 391 +/- 91 22-1

Table 22.

Groundwater Protection Program Summary.

Precipitation, monthly collections, analyses for gamma emitting isotopes.

Location: D-016 Concentration (pCi/L)

Lab Code Date 54Mn 5sFe 58Co so Co sszn gs Nb 95zr 1311 134Cs 131Cs Ho Ba 140La DP-122 01/10/17

< 2.5

< 3.0

< 2.7

< 1.8

< 4.9

< 3.1

< 3.8

< 4.1

< 2.7

< 3.3

< 11.1

< 2.4 DP-448 02/02/17

<2.5

< 4.3

< 1.8

< 2.4

< 5.0

< 2.7

< 3.6

< 3.3

< 2.7

< 12.0

< 2.6 DP-883 03/03/17

< 3.1

< 3.6

< 3.2

<2.5

< 4.7

< 3.2

< 5.8

< 5.1

< 3.1

< 3.8

< 13.5

< 3.2 DP-1445 04/06/17

< 4.5

< 7.2

< 4.1

< 4.4

< 7.6

< 5.1

< 7.3

< 6.3

< 4.4

<4.7

< 20.0

< 5.9 DP-2013 05/04/17

< 1.2

< 2.2

< 1.4

< 2.5

< 1.6

< 1.9

< 2.5

< 1.4

< 1.6

< 6.0

< 1.5 DP-2719 06/05/17

< 1.0

< 2.5

< 1.8

< 1.6

< 2.1

< 2.5

< 8.3

< 1.4

< 1.2

< 18.5

< 3.0 DP-3205 07/03/17

< 1.4

< 2.3

< 1.4

< 2.8

< 1.5

<2.7

< 2.1

< 1.5

< 1.3

< 6.2

< 1.7 DP-3911 08/01/17

< 3.5

< 7.3

< 2.9

<4.0

< 3.5

< 3.4

< 5.8

< 6.5

< 3.5

< 3.8

< 16.0

< 3.5 DP-4500 09/05/17

< 2.9

< 4.3

< 2.4

< 3.2

< 4.8

< 3.4

< 3.9

< 3.5

< 3.2

< 3.5

< 11.8

< 1.9 DP-5079 10/02/17

< 6.5

< 5.5

< 5.0

<7.1

< 7.7

< 4.4

< 12.4

< 8.0

< 8.6

< 7.3

< 21.4

< 7.1 DP-5837 11/01/17

<2.1

< 6.9

< 2.7

< 2.6

< 5.0

< 3.2

< 4.7

< 5.8

< 3.0

< 3.3

< 19.5

< 3.6 DP-6330 12/04/17

< 3.9

< 7.5

< 2.8

< 4.3

< 10.0

< 4.6

< 5.0

< 5.5

< 5.1

< 5.5

< 16.0

< 5.6 Precipitation, monthly collections, analyses for gamma emitting isotopes.

Location: D-127 Concentration (pCi/L)

Lab Code Date 54Mn ssFe saCo so Co a5zn ssNb s5zr 1311 134cs 1a1cs 140Ba 140La DP-1450 04/06/17

<2.5

< 6.5

< 2.2

< 1.4

< 4.4

< 4.1

< 5.6

< 56.5 a

< 2.0

<2.0

<43.6

< 11.8 DP-2018 05/04/17

< 2.9

< 5.0

< 2.5

< 2.7

< 3.1

< 2.6

< 4.0

< 5.7

< 2.5

< 2.6

< 13.5

< 3.5 a LLD for 1-131 not reached due to age of sample and/or small sample size; gamma analysis requested on 05-12-17.

22-2

Table 22.

Groundwater Protection Program Summary.

Ground water, Monitoring wells, analyses for tritium a.

Lab Code Date H-3 (pCi/L)

D-111A (01A)

DWW-612 02/06/17 179 +/- 89 DWW-4133 08/08/17

< 158 DWW-2285 05/08/17 194 +/- 84 DWW-6036 11/07/17 257 +/- 84 D-1118 (018)

DWW-613 02/06/17

< 161 DWW-4134 08/08/17

< 158 DWW-2286 05/08/17

< 152 DWW-6037 11/07/17

< 146 D-112A (02A}

DWW-614 02/06/17

< 161 DWW-4135 08/08/17

< 158 DWW-2287 05/08/17

< 152 DWW-6038 11/07/17 168 +/- 80 D-1128 (028)

DWW-615 02/06/17

< 161 DWW-4136 08/08/17

< 158 DWW-2288 05/08/17

< 152 DWW-6072 11/07/17

< 146 DWW-6083 11/10/17

< 146 D-113A (03A)

DWW-616 02/06/17

< 161 DWW-4137 08/08/17

< 158 DWW-2289 05/08/17

< 152 DWW-6084 11/08/17 155 +/- 79 D-1138 (038)

DWW-617 02/06/17

< 161 DWW-4139 08/08/17

< 158 DWW-2290 05/08/17

< 152 DWW-6085 11/08/17

< 146 D-114A (04A)

DWW-618 02/08/17

< 161 DWW-4210 08/09/17 273 +/- 104 DWW-2291 05/09/17 168 +/- 82 DWW-4211 08/10/17 279+/-105 DWW-6086 11/07/17 230 +/- 83 D-1148 (048)

DWW-619 02/08/17

< 161 DWW-4212 08/10/17

< 190 DWW-2292 05/09/17

< 152 DWW-6087 11/07/17

< 146 D-115A (05A}

DWW-620 02/06/17

< 161 DWW-4140 08/08/17

< 158 DWW-2293 05/08/17

< 152 DWW-6039 11/07/17

< 146 D-1158 (058)

DWW-621 02/06/17

< 161 DWW-4141 08/09/17

< 158 DWW-2294 05/08/17

< 152 DWW-6040 11/07/17

< 146 D-116A (06A}

DWW-622 02/06/17

< 161 DWW-4142 08/08/17

< 158 DWW-2296 05/08/17 227 +/- 85 DWW-6023 11/07/17

< 146 D-1168 (068)

DWW-623 02/06/17

< 161 DWW-4143 08/08/17

< 158 DWW-2297 05/08/17

< 152 DWW-6024 11/07/17

< 146

Analyses for gamma, gross alpha, Sr-89, Sr-90, Fe-55 and Ni-63 will be performed if tritium activity> 1 K pCl/L.

22-3

Table22.

Groundwater Protection Program Summary.

Ground water, Monitoring wells, analyses for tritium *.

Lab Code DWW-663 DWW-1530 DWW-2302 DWW-2579 DWW-3023 DWW-3025 DWW-3026 DWW-3035 DWW-624 DWW-2298 DWW-287 DWW-664 DWW-1047 DWW-1218 DWW-1531 DWW-2020 DWW-2303 DWW-2580 DWW-3027 DWW-3766 DWW-3840 DWW-4215 DWW-4726 DWW-5689 DWW-6074 DWW-6516 DWW-665 DWW-2299 DWW-4216 DWW-6089 DWW-625 DWW-2304 DWW-2499 DWW-3036 DWW-4217 DWW-4727 Date 02107/17 04/10/17 05/11/17 05/23/17 05/24/17 06/02117 06/07/17 06/12117 02107/17 05/10/17 01/17/17 02107/17 03/08/17 03/22117 04/10/17 04/25/17 05/10/17 05/23/17 06/12117 07/05/17 07/25/17 08/09/17 09/12117 10/09/17 11/08/17 12111/17 02107/17 05/10/17 08/09/17 11/08/17 02107/17 05/10/17 05/23/17 06/12117 08/12117 09/12/17 H-3 (pCi/L)

D-127A 9,202 +/-280 16,800 +/- 387 1,966+/-149 28,540 +/- 502 27,733 +/- 489 3,953 +/- 196 3,692 +/- 190 1,335 +/- 128 D-1278

< 161

< 152 D-128A 122,901 +/- 1,037 81,279 +/-790 125,026 +/- 1,035 162,211 +/- 1,183 203,138+/-1,321 165,543 +/- 1,194 103,539 +/- 949 150,415+/-1,143 76,814 +/- 806 115,175 +/-922 85,059 +/- 869 71,658 +/- 739 39,386 +/- 583 49,358 +/- 600 73,062 +/-791 49,957 +/- 657 D-1288 745+/-119 770 +/-109 485+/-112 497 +/- 96 D-129A 731 +/- 113 1,388+/-132 1,700 +/- 141 1,593+/-136 953+/-126 757 +/-108 Lab Code DWW-3765 DWW-3839 DWW-4213 DWW-4725 DWW-5688 DWW-6073 DWW-6515 DWW-4214 DWW-6088 DWW-5690 DWW-6090

' Analyses for gamma, gross alpha, Sr-89, Sr-90, Fe-55 and N~63 will be performed if tritium activity> 1K pCi/L.

22-4 Date H-3 (pCi/L)

(07A) 07/05/17 5,089 +/- 213 07/25/17 14,824 +/- 369 08/10/17 4,494 +/-206 09/12117 2,288+/-157 10/09/17 3,972 +/- 191 11/08/17 18,127 +/- 399 12112/17 3,549+/-192 (078) 08/10/17

< 190 11/08/17

< 146 (08A)

(088)

(09A) 10/09/17 722+/-115 11/08/17 489 +/- 95

Table 22.

Groundwater Protection Program Summary.

Ground water, Monitoring wells, analyses for tritium*.

Lab Code Date H-3 (pCi/L)

D-1298 (098)

DWW-626 02/07/17 356 +/- 97 DWW-2300 05/10/17 359 +/- 92 DWW-4218 08/12/17 356 +/- 107 DWW-6091 11/08/17 395 +/- 91 D-130A (10A)

DWW-627 02/07/17

< 161 DWW-2312 05/10/17 177 +/- 83 DWW-4219 08/09/17

< 190 DWW-6092 11/08/17

< 146 D-1308 (108)

DWW-628 02/07/17

< 161 DWW-2313 05/10/17

< 152 DWW-4220 08/09/17

< 190 DWW-6093 11/08/17

< 151 D-131A (11A)

DWW-629 02/08/17

< 161 DWW-2314 05/10/17

< 152 DWW-4221 08/10/17 387 +/- 108 DWW-6094 11/07/17 181 +/- 81 D-1318 (118)

DWW-630 02/08/17

< 161 DWW-2315 05/09/17

< 152 DWW-4222 08/09/17

< 190 DWW-4223 08/10/17

< 190 DWW-6095 11/07/17

< 151 D-132A (12A)

DWW-288 01/17/17

< 160 DWW-632 02/08/17

< 161 DWW-2301 05/11/17 536 +/- 100 DWW-4144 08/09/17

< 158 DWW-6097 11/07/17 156 +/- 80 D-1328 (128)

DWW-633 02/08/17

< 161 DWW-2305 05/11/17 155 +/- 81 DWW-4145 08/09/17

< 145 DWW-6098 11/07/17

< 151

Analyses for gamma, gross alpha, Sr-89, Sr-90, Fe-55 and Ni-63 will be performed if tritium activity> 1 K pCi/L.

22-5

Table22.

Groundwater Protection Program Summary.

Ground water, Monitoring wells, analyses for tritium a.

Lab Code Date H-3 (pCi/L)

D-133A (13A)

DWW-634 02/08/17

< 161 DWW-2317 05/09/17

< 152 DWW-4146 08/09/17

< 158 DWW-6099 11/08/17

< 151 D-1338 (138)

DWW-635 02/08/17

< 161 DWW-2318 05/09/17

< 152 DWW-4147 08/09/17

< 158 DWW-6100 11/08/17

< 151 D-134A (14A)

DWW-290 01/18/17 84,317 +/- 860 DWW-667 02/07/17 118,103 +/-950 DWW-1048 03/09/17 13,725 +/- 349 DWW-1219 03/22/17 11,467 +/- 322 DWW-1622 04/13/17 3,471 +/- 187 DWW-2021 04/25/17 2,295+/-157 DWW-2319 05/10/17 1,354+/-130 DWW-2497 05/23/17 1,247+/-126 DWW-3037 06/12/17 1,112+/-121 DWW-3767 07/05/17 8,973 +/- 272 DWW-3842 07/25/17 4,325 +/- 209 DWW-4225 08/09/17 5,509 +/- 224 DWW-4728 09/12/17 8,302 +/- 275 DWW-5691 10/09/17 5,023 +/- 210 DWW-6101 11/08/17 961+/-115 DWW-6517 12/11/17 3,093 +/- 182 D-1348 (148)

DWW-636 02/07/17 364 +/- 98 DWW-2320 05/10/17 501 +/- 98 DWW-4226 08/09/17 324 +/- 106 DWW-6102 11/08/17 455 +/- 94 D-135A (15A)

DWW-637 02/08/17

< 161 DWW-2321 05/09/17

< 153 DWW-4148 08/09/17

< 158 DWW-6103 11/07/17

< 151 a Analyses for gamma, gross alpha, Sr-89, Sr-90, Fe-55 and Ni-63 v~ll be performed if trttium activity> 1 K pCi!L.

22-6

Table 22.

Groundwater Protection Program Summary.

Ground water, Monitoring wells, analyses for tritium '.

Lab Code Date H-3 (pCi/L)

D-1358 (158)

DWW-638 02108/17

< 161 DWW-2322 05/09/17

< 153 DWW-4149 08/09/17

< 158 DWW-6104 11/07/17

< 151 D-136A (16A)

DWW-639 02107/17

< 161 DWW-2323 05/11/17

< 153 DWW-4227 08/09/17 167 +/- 81 DWW-6105 11/08/17

< 151 D-1368 (168)

DWW-640 02107/17

< 162 DWW-2324 05/11/17

< 153 DWW-4228 08/09/17

< 145 DWW-6106 11/08/17

< 151 D-137 (17C)

DWW-641 02107/17

< 162 DWW-2325 05/11/17

< 153 DWW-4229 08/09/17 182 +/- 82 DWW-6109 11/08/17

< 151 D-62 (18A)

DWW-293 01/18/17 25,083 +/- 473 DWW-668 02107/17 26,675 +/-459 DWW-1049 03/08/17 84,000 +/- 850 DWW-1221 03/22117 49,996 +/- 660 DWW-1532 04/10/17 18,991 +/- 410 DWW-2022 04/25/17 47,979 +/- 646 DWW-2306 05/10/17 21,247 +/- 435 DWW-2581 05/23/17 8,091 +/- 274 DWW-3028 06/02117 9,638 +/- 294 DWW-3768 07/05/17 18,262 +/- 376 DWW-3841 07/25/17 15,985 +/- 383 DWW-4230 08/09/17 10,299 +/- 305 DWW-4729 09/12117 4,517 +/- 209 DWW-5692 10/09/17 5,383 +/- 216 DWW-6076 11/08/17 7,430 +/- 261 DWW-6518 12111/17 569+/-108 D-63 (19A)

DWW-642 02107/17

< 162 DWW-2326 05/10/17

< 153 DWW-4231 08/10/17

< 145 DWW-6110 11/08/17

< 151

Analyses for gamma, gross alpha, Sr-89, Sr-90, Fe-55 and Ni-63 will be performed if tritium activity> 1 K pCi/L.

22-7

Table22.

Groundwater Protection Program Summary.

Ground water, Monitoring wells, analyses for tritium *.

Lab Code Date H-3 (pCi/L)

D-64 (20A)

DWW-643 02/07/17

< 162 DWW-2327 05/10/17 175 +/- 85 DWW-4232 08/10/17

< 147 DWW-6111 11/08/17

< 151 D-65 (21A)

DWW-669 02/07/17 2,911 +/- 175 DWW-2328 05/10/17 402 +/- 96 DWW-4233 08/10/17 266 +/- 90 DWW-6112 11/08/17

< 151 D-66 (22A)

DWW-297 01/18/17 33,897 +/- 548 DWW-671 02/07/17 80,168 +/- 784 DWW-1222 03/22/17 31,109 +/- 522 DWW-1534 04/10/17 148,375 +/- 1,130 DWW-2023 04/25/17 85,754 +/- 861 DWW-2307 05/10/17 97,047 +/- 919 DWW-2582 05/23/17 73,195 +/- 799 DWW-3029 06/12/17 62,186 +/- 726 DWW-3769 07/05/17 44,331 +/- 576 DWW-3843 07/25/17 16,805 +/- 392 DWW-4234 08/09/17 20,383 +/- 422 DWW-4730 09/12/17 14,813 +/- 362 DWW-5693 10/09/17 74,665 +/-735 DWW-6077 11/08/17 48,385 +/- 645 DWW-6519 12/11/17 14,206 +/- 357 D-67 (23A)

DWW-295 01/18/17 146,308+/-1,131 DWW-670 02/07/17 68,811 +/- 728 DWW-1050 03/08/17 14,994 +/- 364 DWW-1223 03/22/17 6,117 +/- 240 DWW-1535 04/10/17 11,296 +/- 320 DWW-2024 04/25/17 3,865 +/- 195 DWW-2308 05/10/17 3,428 +/- 187 DWW-2583 05/23/17 5,223 +/- 224 DWW-3030 06/12/17 1,698 +/- 140 DWW-3763 07/05/17 1,899 +/- 149 DWW-3844 07/25/17 3,058+/-181 DWW-4235 08/09/17 1,696 +/- 142 DWW-4731 09/12/17 793 +/- 109 DWW-5694 10/09/17 776+/-117 DWW-6113 11/08/17 1,628+/-137 DWW-6520 12/11/17 892 +/- 120

Analyses for gamma, gross alpha, Sr-89, Sr-90, Fe-55 and Ni-63 will be performed If tritium activity > 1 K pCl/L.

22-8

Table 22.

Groundwater Protection Program Summary.

Ground water, Monitoring wells, analyses for tritium *.

D-165 (24A)

DWW-296 01/17/17

< 160 DWW-6114 11/08/17

< 151 DWW-644 02/08/17

< 162 DWW-2329 05/09/17

< 153 DWW-4150 08/09/17

< 158 D-166 b

(25A)b DWW-286 01/17/17 6,281 +/- 246 DWW-672 02/08/17 6,911 +/- 247 DWW-754 02/22/17 7,092 +/- 261 DWW-1075 03/08/17 5,907 +/- 235 DWW-1224 03/22/17 3,347 +/- 184 DWW-2330 05/09/17 301 +/- 91 D-167 (26A)

DWW-285 01/17/17 2,663 +/- 170 DWW-673 02/08/17 3,552 +/- 188 DWW-755 02/22/17 3,709 +/- 196 DWW-1076 03/08/17 3,779 +/- 193 DWW-1225 03/22/17 4,024 +/- 199 DWW-1621 04/12/17 3,279+/-182 DWW-2309 05/09/17 3,963+/-199 DWW-3038 06/12/17 3,664 +/- 190 DWW-4151 08/09/17 1,435 +/- 134 DWW-6115 11/08/17 836 +/- 110 D-168A (27A)

DWW-645 02/06/17

< 162 DWW-2331 05/08/17

< 153 DWW-4152 08/08/17

< 158 DWW-6025 11/06/17

< 146 D-1688 (278)

DWW-283 01/17/17

< 160 DWW-6026 11/06/17

< 146 DWW-646 02/06/17

< 162 DWW-2332 05/08/17

< 153 DWW-4153 08/08/17

< 158 D-169A (28A)

DWW-647 02/06/17 921 +/- 120 DWW-2333 05/08/17 860+/-115 DWW-4154 08/08/17 949 +/- 117 DWW-6078 11/06/17 2,992 +/- 174 D-1698 (288)

DWW-648 02/06/17 237 +/- 92 DWW-2334 05/08/17

< 153 DWW-4155 08/08/17 163 +/- 82 DWW-6027 11/06/17

< 146 DWW-6116 11/10/17

< 151

Analyses for gamma, gross alpha, Sr-89, Sr-90, Fe-55 and Ni-63 will be performed if tritium activity > 1 K pCl/L.

b MW-25A was converted to an extraction well on August 1, 2017, EW-03A.

22-9

Table 22.

Groundwater Protection Program Summary.

Ground water, Monitoring wells, analyses for tritium *.

D-170A (29A)

DWW-291 01/17/17 8,029 +/- 275 DWW-4732 09/12117 290 +/- 87 DWW-294 01/13/17 8,528 +/- 283 DWW-5695 10/09/17 261 +/- 100 DWW-674 01/20/17 7,326 +/-254 DWW-6028 11/06/17 279 +/- 85 DWW-676 02/08/17 4,490 +/- 206 DWW-757 02122117 3,247 +/- 185 DWW-1077 03/08/17 2,896+/-172 DWW-1226 03/22117 3,916+/-197 DWW-1618 04/12117 4,305 +/- 205 DWW-2134 04/25/17 4,025 +/-200 DWW-2310 05/08/17 3,990 +/- 200 DWW-2585 05/23/17 4,583 +/- 212 DWW-3031 06/12/17 4,832 +/- 214 DWW-3770 07/05/17 12,931 +/- 320 DWW-3846 07/25/17 446 +/- 98 DWW-4156 08/08/17 562+/-101 D-1708 (298)

DWW-651 02108/17

< 162 DWW-2335 05/08/17

< 153 DWW-4157 08/08/17

< 158 DWW-6029 11/06/17

< 146 D171A (30A)

DWW-649 02106/17

< 162 DWW-6079 11/07/17

< 146 DWW-2336 05/08/17 298 +/- 91 DWW-6118 11/10/17

< 151 DWW-4158 08/08/17 270 +/- 88 D-1718 (308)

DWW-650 02106/17 670+/-111 DWW-2338 05/08/17

< 153 DWW-4160 08/08/17

< 158 DWW-6030 11/07/17

< 146 D172A (31A)

DWW-653 02/06/17

< 162 DWW-2339 05/08/17

< 153 DWW-4161 08/08/17

< 158 DWW-6082 11/07/17

< 146 DWW-6107 11/10/17

< 151 D-1728 (318)

DWW-284 01/17/17

< 160 DWW-654 02106/17

< 162 DWW-2340 05/08/17

< 153 DWW-4162 08/08/17

< 158 DWW-6119 11/09/17

< 151

Analyses for gamma, gross alpha, Sr-89, Sr-90, Fe-55 and Ni-63 will be performed If tritium activity> 1K pCi/l.

22-10

Table 22.

Groundwater Protection Program Summary.

Ground water, Monitoring wells, analyses for tritium a.

D-173A (32A)

DWW-289 01/13/17 3,913 +/- 200 DWW-4733 09/12/17 1,205 +/- 124 DWW-292 01/17/17 3,134 +/- 182 DWW-6031 11/07/17 306 +/- 87 DWW-677 02106/17 1,899+/-152 DWW-758 02122117 1,643 +/- 142 DWW-1078 03/08/17 2,269 +/- 156 DWW-1227 03/22117 3,727 +/- 193 DWW-1620 04/12117 7,595 +/- 265 DWW-2135 04/25/17 10,169 +/-305 DWW-2311 05/08/17 10,752 +/- 314 DWW-2732 05/23/17 8,570 +/- 283 DWW-3032 06/12117 3,380 +/- 183 DWW-3764 07/05/17 6,744 +/- 240 DWW-3845 07/25/17 2,074 +/- 155 DWW-4163 08/08/17 1,613 +/- 140 D-1738 (328)

DWW-655 02106/17 180 +/- 89 DWW-2341 05/08/17

< 153 DWW-4164 08/08/17

< 158 DWW-6032 11/07/17 298 +/- 86 D-79 MW-33A DWW-1616 04/12117 177 +/- 86 DWW-6034 11/06/17

< 146 DWW-2136 04/25/17

< 152 DWW-2342 05/08/17

< 153 DWW-4165 08/08/17 174 +/- 83 D-80 MW-34A DWW-1617 04/12117

< 155 DWW-6080 11/06/17

< 146 DWW-2137 04/25/17

< 152 DWW-6108 11/10/17

< 151 DWW-2343 05/08/17 190 +/- 86 DWW-4166 08/08/17

< 158 D-81 MW-35A DWW-2138 04/25/17

< 152 DWW-2344 05/08/17 181 +/- 85 DWW-3762 07/05/17 187 +/- 98 DWW-4167 08/08/17

< 158 DWW-6035 11/06/17 383 +/- 90 DWW-6521 12111/17 331 +/- 98

' Analyses for gamma, gross alpha, Sr-89, Sr-90, Fe-55 and Ni-63 will be performed If tritium activity> 1K pCi/l.

22-11

Table 22.

Groundwater Protection Program Summary.

D-119 (2MH209)

DSW-716 02/14/17 430 +/- 101 DSW-4314 08/21/17 811+/-108 DSW-2346 05/09/17 301 +/- 91 DSW-6081 11/02/17 670 +/- 103 DSW-2651 05/30/17 487 +/- 97 D-120 (2MH210)

DSW-717 02/14/17 302 +/- 95 DSW-4315 08/21/17 519 +/- 96 DSW-2347 05/09/17 569+/-103 D-121 (2MH211)

DSW-718 02/14/17 737 +/- 113 DSW-4316 08/21/17 408 +/- 91 D-122 (Sluice Pond)

DSW-2652 05/30/17 370 +/- 91 DSW-4317 08/21/17

< 149 DSW-6152 11/15/17 328 +/-90 D-123 (S. Drainage Ditch)

DSW-2653 05/30/17 178 +/- 82 D-124 (N. Drainage Ditch)

DSW-720 02/14/17

< 162 DSW-4319 08/21/17

< 149 DSW-2654 05/30/17

< 153 DSW-6154 11/15/17

< 154 D-125 (Onsite S. Storm Drain Outfall)

DSW-243 01/17/17 1,380+/-134 DSW-4320 08/21/17 1,719+/-140 DSW-721 02/14/17 265 +/- 93 DSW-6155 11/15/17 166 +/- 82 DSW-2655 05/30/17 1,407+/-132 D-89 (MH221)

D-101 (1MH109)

DSW-2345 05/09/17 420 +/- 97 DSW-6022 11/02117 440 +/- 93 (1MH213)

D-25 (MH105)

DSW-2656 05/30/17 191 +/- 82 DSW-6020 11/03/17

< 146 MH-114 D-27 (MH-107 DWW-3033 06/13/17 2,272 +/- 156 DWW-6021 11/03/17

< 146 MH-219 D-24 (MH-104)

DWW-3034 06/13/17 3,174+/-179 DWW-6174 11/17/17

< 154 MH-101 MH-202 DWW-3039 06/14/17 459 +/- 95 DWW-3759 06/14/17

< 184 MH-102 D-26 (MH-106)

DWW-3040 06/14/17 269 +/- 87 DWW-6176 11/17/17

< 154 DWW-3761 06/14/17

< 184 22-12

Table 22.

Groundwater Protection Program Summary.

Monitoring wells, analyses for gamma-emitting isotopes.

Lab Code DWW-663 DWW-1530 DWW-2302 DWW-2579 DWW-3023 DWW-3025 DWW-3026 DWW-3035 DWW-3765 DWW-3839 DWW-4213 DWW-4725 DWW-5688 DWW-6073 DWW-6515 DWW-287 DWW-664 DWW-1047 DWW-1218 DWW-1531 DWW-2020 DWW-2303 DWW-2580 DWW-3027 DWW-3766 DWW-3840 DWW-4215 DWW-4726 DWW-5689 DWW-6074 DWW-6516 Collection Date 2/7/2017 4/10/2017 5/11/2017 5/23/2017 5/24/2017 6/2/2017 6/7/2017 6/12/2017 7/5/2017 7/25/2017 8/10/2017 9/12/2017 10/9/2017 11/8/2017 12/12/2017 1/17/2017 2/7/2017 3/8/2017 3/22/2017 4/10/2017 4/25/2017 5/10/2017 5/23/2017 6/12/2017 7/5/2017 7/25/2017 8/9/2017 9/12/2017 10/9/2017 11/8/2017 12/11/2017

< 3.7

< 10.2

< 5.6

< 2.9

< 7.3

< 3.1

< 7.2

< 3.1

< 3.0

< 5.9

< 3.4

< 2.2

< 5.3

< 2.3

< 3.2

< 9.1

< 3.2

< 2.6

< 8.3

< 3.3

< 3.1

< 7. 7

< 3.4

< 2.7

< 5.9

< 3.2

< 2.9

< 5.4

< 2.3

<2.5

<4.9

<1.8

<2.8

<6.5

<2.1

< 2.5

< 5.5

< 2.1

<2.7

<6.5

<2.7

< 3.0

< 7.9

< 3.3

< 2.2

< 5.9

<3.4

<7.7

<1.9

<4.7

< 1.9

< 4.0

< 3.0

< 6.2

< 2.5

< 6.9

< 2.3

< 5.3

< 2.3

< 6.1

<2.7

<3.1

< 2.8

< 7.5

< 2.5

< 6.2

< 2.6

< 5.1

< 2.9

< 3.8

< 2.6

< 4.9

<2.7

<4.9

< 2.9

< 3.9

< 1.5

< 2.8

< 2.1

< 2.8

< 3.2

< 3.0

< 2.5

< 3.4

< 3.0

< 2.1

< 2.2

< 2.1

< 3.4

< 3.0 so Co sszn D-127A (MW-07A)

<3.1

<6.0

< 7.0

< 10.3

< 2.1

< 6.2

< 3.1

< 5.5

< 2.6

< 3.1

< 5.2

< 3.2

< 3.0

< 3.7

< 5.4

< 2.3

< 5.5

<5.7

<4.5

< 3.1

< 4.8

< 5.5

< 5.6

< 1.9

<4.0

<3.7

<4.7

<2.9

<4.7

< 5.4

< 6.8

< 2.8

< 5.8

< 4.1

< 7.0

< 2.8

< 4.0

< 4.4

< 5.3

< 2.2

< 5.5

< 4.4

< 6.4

< 3.1

< 4.3

< 4.8

< 5.6

< 2.2

< 3.6

< 2.9

< 5.5

<1.4

<5.0

<4.2

<4.7

< 2.0

< 6.1

< 4.8

< 6.9 D-128A (MW-OBA)

< 2.6

< 2.4

< 3.0

< 2.4

< 2.7

< 2.4

< 2.3

< 3.1

< 2.4

< 1.8

< 3.0

< 2.3

< 2.4

< 2.2

< 2.5

< 4.3

< 5.7

< 4.8

< 4.5

< 5.1

< 5.0

< 4.0

<4.8

<4.7

< 5.3

< 5.1

< 3.4

<4.8

< 5.3

< 5.7

<4.3

< 3.5

< 3.3

< 3.9

< 2.7

< 4.0

< 4.1

< 3.5

< 5.4

< 3.2

<3.2

< 3.8

< 4.8

< 5.6

< 5.0

< 6.8

< 5.7

< 5.6

< 4.2

< 6.3

< 3.6

< 4.6

< 3.5

<4.2

< 4.6

< 5.4

< 4.4

< 4.3

< 6.2

< 4.3

< 5.0 a LLDs for Ba-140 and/or La-140 not reached due to age of samples and smaller sample size.

22-13

< 3.6

< 2.6

< 2.5

< 3,0

< 3.0

< 2.9

< 2.6

< 2.7

< 2.5

< 2.7

<2.9

< 2.9

< 2.8

< 2.6

< 3.2

< 2.7

< 3.0

< 2.9

< 3.0

< 2.6

< 2.5

< 3.0

< 2.6

< 3.2

< 2.8

< 2.4

< 2.7

< 2.6

< 3.5

< 3.4

< 2.6

< 3.3

< 2.5

< 2.7

< 2.9

< 2.5

< 2.4

< 2.7

< 2.0

< 3.2

< 3.4

< 2.5

< 3.1

< 2.3

< 2.2

< 1.9

< 2.3

< 2.8

< 2.6

< 3.6

< 2.4

< 2.5

< 2.7

< 2.9

<2.6

< 2.5

<42.1

< 25.0

< 41.1

< 27.3

< 68.4

< 42.5

< 25.2

< 47.0

< 39.5

< 22.7

< 33.8

< 26.4

< 25.6

< 29.7

< 56.4

< 30.8

<48.0

< 39.5

< 15.4

< 29.8

< 39.5

< 25.1

< 22.1

< 23.2

<47.3

< 43.7

< 22.0

< 16.7

<42.8

< 54.1

< 36.5

< 20.1 a

< 9.6

< 9.3

< 7.9

< 12.0 a

< 8.0

< 7.8

< 7.5

< 14.5

< 9.4

< 10.2

< 6.2

< 7.9

< 6.8

< 10.6

< 10.4

< 10.2

< 9.6

< 5.1

< 6.2

< 6.1

< 10.2

< 8.2

< 5.4

< 12.4

< 10.8

< 6.2

< 4.4

< 6.8

< 8.3

< 11.0

Table 22.

Groundwater Protection Program Summary.

Monitoring wells, analyses for gamma-emitting isotopes.

Lab Code DWW-2304 DWW-2499 DWW-3036 DWW-290 DWW-667 DWW-1048 DWW-1219 DWW-1622 DWW-2021 DWW-2319 DWW-2497 DWW-3037 DWW-3767 DWW-3842 DWW-4225 DWW-4728 DWW-5691 DWW-6517 Collection Date 5/10/2017 5/23/2017 6/12/2017 1/18/2017 2/7/2017 3/9/2017 3/22/2017 4/13/2017 4/25/2017 5/10/2017 5/23/2017 6/12/2017 7/5/2017 7/25/2017 8/9/2017 9/12/2017 10/9/2017 12/11/2017

< 2.3

< 5.9

< 3.5

< 1.1

< 3.8

< 1.0

< 2.7

< 6.9

< 2.7

< 2.9

< 8.8

< 1.9

< 2.6

< 5.8

< 3.4

< 2.1

< 7.4

< 3.2

< 1.6

< 5.6

< 3.2

<2.2

< 5.0

< 3.4

< 2.9

<4.2

< 3.4

< 1.1

< 3.7

< 1.8

< 1.6

< 5.4

< 1.5

< 2.9

< 4.5

< 3.3

< 2.7

< 7.9

< 3.3

< 2.5

< 7.8

< 3.6

< 2.4

< 5.0

<2.4

< 3.1

< 3.0

< 2.2

< 2.5

< 5.1

< 2.4

< 2.9

< 5.8

< 3.0 D-1288 (MW-088)

D-129A (MW-09A)

< 2.8

< 4.2

<6.2

< 1.3

< 2.7

< 1.5

< 2.3

< 5.4

< 3.8 D-132A (MW-12A)

D-134A (MW-14A)

< 2.2

< 5.5

<4.2

< 2.7

< 4.4

< 4.6

< 2.5

< 4.4

< 4.0

< 2.4

< 5.6

< 3.1

< 2.8

< 6.1

<4.2

< 3.2

< 4.8

< 2.9

< 1.6

< 2.3

< 2.9

< 1.7

< 3.2

< 2.5

< 2.0

< 5.2

< 3.2

< 2.6

< 5.5

<4.8

< 1.8

< 4.7

<4.2

< 2.6

< 4.2

< 3.7

< 1.8

< 5.8

< 3.8

< 2.3

< 3.7

< 3.3

< 1.5

< 2.8

< 4.2 a LLDs for 8a-140 and/or La-140 not reached due to age of samples and/or smaller sample size.

22-14 9szr

< 5.6

< 3.3

< 2.3

< 74.2

< 25.3 a

< 3.1

< 1.6

< 13.3

< 2.9

< 5.7

< 2.5

< 2.7

< 30.2

< 6.7

< 5.7

< 2.6

< 2.7

< 46.8

< 11.1

< 5.9

< 2.6

< 2.4

< 27.9

< 11.6

< 5.3

< 2.5

< 3.0

< 28.0

< 10.1

< 5.6

< 2.7

< 2.0

< 20.3

< 5.3

< 2.8

< 3.5

< 24.1

< 8.1

< 4.9

< 2.7

< 3.3

< 29.0

< 7.7

< 2.8

< 1.7

< 1.1

< 37.1

< 15.3 a

< 3.8

< 1.5

< 1.8

< 32.2

<7.2

<4.7

< 2.4

<2.6

< 35.0

< 8.8

< 6.5

< 2.6

< 2.9

< 27.0

< 9.4

< 3.7

< 2.7

< 2.8

< 35.3

< 11.0

< 4.3

< 3.1

< 2.7

< 25.3

< 10.4

< 4.9

<2.6

< 3.0

<24.6

< 5.1

< 6.0

< 3.0

<2.2

< 33.3

< 11.0

< 5.1

< 2.5

< 2.0

< 42.2

< 12.6

Table 22.

Groundwater Protection Program Summary.

Monitoring wells, analyses for gamma-emit! ing isotopes.

Collection Lab Code Date 54Mn ssFe ssco so Co sszn ssNb sszr 134Cs 131cs 140Ba 140La D-62 (MW-18A)

DWW-293 1/18/2017

< 2.4

< 5.6

< 1.8

< 2.3

< 3.8

< 3.3

< 5.0

< 2.8

< 3.1

< 19.1

< 5.0 DWW-668 2/7/2017

< 3.1

< 5.6

< 3.0

< 1.7

< 4.7

<4.2

< 6.5

< 2.5

< 2.3

< 41.3

< 10.8 DWW-1049 3/8/2017

< 3.0

< 5.0

< 1.9

< 2.2

< 5.8

< 4.4

< 5.3

< 2.7

< 3.0

< 41.1

< 8.6 DWW-1221 3/22/2017

< 2.8

< 5.6

< 3.1

< 1.7

< 6.1

< 2.9

< 5.0

< 2.6

< 3.4

< 27.4

< 6.4 DWW-1532 4/10/2017

< 3.2

< 7.5

< 3.1

< 3.4

< 7.3

<4.2

< 8.0

< 3.3

< 3.0

< 30.1

< 4.7 DWW-2022 4/25/2017

< 2.9

< 8.8

<2.0

< 2.3

< 5.1

< 4.3

<4.1

< 2.7

< 2.5

< 24.7

< 10.3 DWW-2306 5/10/2017

< 3.5

< 8.8

<2.4

< 2.2

< 2.9

< 5.0

<4.5

< 3.0

< 3.1

< 31.2

< 7.6 DWW-2581 5/23/2017

< 2.3

< 4.7

< 3.0

< 2.9

< 5.9

< 3.7

< 4.3

< 3.1

<2.3

< 17.7

< 7.2 DWW-3028 6/2/2017

< 2.1

< 5.6

< 3.0

< 2.9

<4.2

< 4.1

< 4.7

< 3.1

< 2.4

< 24.3

< 10.6 DWW-3768 7/5/2017

< 2.8

< 8.1

< 3.7

< 2.6

< 5.7

< 3.9

< 6.3

< 2.9

< 1.8

< 55.7

< 15.2 a DWW-3841 7/25/2017

< 2.0

< 7.7

< 4.2

< 2.6

< 5.8

< 5.5

< 6.5

< 2.9

< 2.8

< 26.8

< 5.7 DWW-4230 8/9/2017

< 2.4

< 5.1

<2.2

< 2.7

<4.0

< 3.9

< 4.5

< 2.9

< 2.8

< 27.7

< 7.6 DWW-4729 9/12/2017

< 2.8

< 6.3

< 3.3

< 2.7

< 6.0

<4.2

<5.9

< 2.8

< 3.2

< 22.0

< 6.2 DWW-5692 10/9/2017

< 2.9

< 7.7

< 2.7

< 1.4

< 5.9

< 3.7

< 7.3

< 2.9

< 59.4

< 17.7 a DWW-6076 11/8/2017

< 2.8

< 7.8

< 3.5

< 2.8

< 5.7

< 5.5

< 5.3

< 2.5

<2.2

< 39.0

< 8.0 0-63 (MW-19A)

D-64 (MW-20A)

D-65 (MW-21A)

DWW-669 2/7/2017

<2.7

<6.7

<2.7

<2.9

<5.7

<4.4

< 4.5

< 2.8

< 3.2

<47.6

< 6.0 a LLDs for Ba-140 and/or La-140 not reached due to age of samples and/or smaller sample size.

22-15

Table 22.

Groundwater Protection Program Summary.

Monitoring wells, analyses for gamma-emitting isotopes.

Lab Code DWW-297 DWW-671 DWW-1222 DWW-1534 DWW-2023 DWW-2307 DWW-2582 DWW-3029 DWW-3769 DWW-3843 DWW-4234 DWW-4730 DWW-5693 DWW-6077 DWW-6519 DWW-295 DWW-670 DWW-1050 DWW-1223 DWW-1535 DWW-2024 DWW-2308 DWW-2583 DWW-3030 DWW-3763 DWW-3844 DWW-4235 DWW-6113 Collection Date 1/18/2017 2/7/2017 3/22/2017 4/10/2017 4/25/2017 5/10/2017 5/23/2017 6/12/2017 7/5/2017 7/25/2017 8/9/2017 9/12/2017 10/9/2017 11/8/2017 12/11/2017 1/18/2017 2/7/2017 3/8/2017 3/22/2017 4/10/2017 4/25/2017 5/10/2017 5/23/2017 6/12/2017 7/5/2017 7/25/2017 8/9/2017 11/8/2017

< 1.9

< 3.0

< 2.2

< 2.9

< 2.3

< 2.9

< 2.1

< 2.0

< 2.6

< 3.0

< 2.5

< 2.2

< 2.6

< 2.9

< 2.6

< 2.9

< 2.7

< 3.1

< 2.6

< 3.1

< 2.2

< 2.0

< 1.9

< 2.5

< 2.6

< 1.5

< 4.1

< 6.7

< 6.3

< 7.7

< 7.9

< 9.0

< 4.9

< 4.5

< 5.0

< 6.5

< 5.2

< 5.9

< 6.3

< 3.9

< 8.2

< 4.2

< 5.5

<4.7

< 4.3

< 6.4

< 7.0

< 8.2

< 5.2

< 4.7

< 3.1

< 4.8

< 5.7

< 2.9

< 2.2

< 2.6

< 3.1

< 2.7

< 2.5

< 2.7

< 2.6

< 3.9

< 3.0

< 2.4

< 2.0

< 2.2

< 3.4

< 3.0

< 3.3

< 3.0

< 3.8

< 3.4

< 3.2

< 2.7

< 2.0

< 3.0

< 2.0

< 1.7

< 2.5

< 1.9

< 2.5

<2.2

< 3.2

<3.2

< 2.6

< 2.9

< 2.4

< 2.1

< 2.8

< 2.6

< 1.7

< 2.8

< 2.4

<2.6 0-66 (MW-22A}

< 4.3

< 5.6

< 5.1

< 5.9

< 3.2

< 5.8

< 3.8

<4.2

< 4.9

< 5.3

< 4.0

< 4.9

< 4.4

< 5.1

< 5.4

< 3.0

< 3.8

<5.2

< 3.9

< 4.0

< 2.6

< 3.5

< 3.4

< 6.0

<3.7

< 3.6

< 2.4

< 5.3

< 3.8

< 4.5 D-67 (MW-23A}

< 2.9

< 2.6

< 3.2

<2.8

< 1.7

<2.2

< 3.1

< 2.7

< 2.9

< 1.2

< 2.5

< 2.8

< 1.3

< 4.3

< 4.5

< 5.0

< 5.2

< 5.1

< 5.9

<4.9

< 4.1

< 3.4

< 2.3

< 4.9

< 3.5

< 3.4

< 2.9

< 4.8

< 4.9

< 4.0

< 4.1

< 4.7

< 5.7

< 4.1

< 3.5

< 2.8

< 3.5

<4.0

< 3.0

LLDs for Ba-140 and/or La-140 not reached due to age of samples and/or smaller sample size.

22-16 9szr

< 3.9

< 7.2

< 5.9

< 5.8

<4.6

< 6.7

<4.5

< 4.0

< 7.3

<4.6

< 4.7

< 5.1

< 5.9

< 7.0

< 3.9

< 3.3

< 5.8

< 5.9

< 7.3

< 2.7

< 5.4

< 6.0

< 4.7

< 4.2

< 3.3

< 5.6

< 4.9

< 3.3

< 3.0

< 3.1

< 2.8

< 2.5

< 2.7

< 2.8

< 3.0

< 2.7

< 3.2

< 2.8

< 2.5

< 2.4

< 2.8

< 3.1

<2.5

< 3.1

< 2.9

< 2.6

< 2.9

< 2.8

< 3.3

< 2.9

< 1.6

< 2.5

< 3.3

< 1.6

<2.3

< 2.4

< 2.9

< 2.4

< 2.2

< 2.1

< 2.9

< 2.8

< 2.6

< 3.3

< 2.9

< 2.7

< 2.9

< 3.0

< 3.6

< 3.0

< 2.3

< 1.8

< 2.4

<2.5

< 1.8

< 15.0

< 31.2

< 32.8

< 31.7

<42.1

< 33.1

< 19.8

< 18.4

< 74.9

< 43.4

< 28.3

< 27.1

< 35.4

< 33.5

< 39.2

< 24.5

< 37.3

< 33.2

< 36.5

< 26.4

< 30.3

< 43.8

< 20.3

< 19.3

< 37.4

< 39.3

< 33.0

< 27.4

< 5.0

< 11.9

< 7.3

< 9.1

< 7.4

< 7.0

< 6.7

< 6.9

< 10.0 a

< 12.6

< 11.4

< 8.4

< 10.3

< 9.1

< 15.6 a

< 9.4

<9.5

< 9.2

< 10.3

< 7.8

< 11.8

< 13.7

< 8.8

< 8.0

< 14.6

< 9.9

< 10.0

< 6.6

Table 22.

Groundwater Protection Program Summary.

Monitoring wells, analyses for gamma-emitting isotopes.

Lab Code DWW-286 DWW-672 DWW-754 DWW-1075 DWW-1224 DWW-285 DWW-673 DWW-755 DWW-1076 DWW-1225 DWW-1621 DWW-2309 DWW-3038 DWW-4151 DWW-6078 DWW-291 DWW-294 DWW-674 DWW-676 DWW-757 DWW-1077 DWW-1226 DWW-1618 DWW-2134 DWW-2310 DWW-2585 DWW-3031 DWW-3770 Collection Date 1/17/2017 2/8/2017 2/22/2017 3/8/2017 3/22/2017 1/17/2017 2/8/2017 2/22/2017 3/8/2017 3/22/2017 4/12/2017 5/9/2017 6/12/2017 8/9/2017 11/6/2017 1/17/2017 1/13/2017 1/20/2017 2/8/2017 2/22/2017 3/8/2017 3/22/2017 4/12/2017 4/25/2017 5/8/2017 5/23/2017 6/12/2017 7/5/2017 54Mn

< 2.9

< 6.5

< 3.0

< 2.9

< 4.2

< 1. 7

<2.7

<6.5

<2.5

<2.9

<9.4

<3.7

< 2.4

< 5.3

< 3.3

<2.8

<5.5

<2.4

< 2.9

< 7.3

< 2.8

<2.4

<3.9

<2.7

< 2.9

< 5.2

< 2.9

< 3.0

< 5.0

< 3.3

<2.5

<6.7

<2.9

< 2.8

< 8.3

< 3.2

< 2.2

< 4.6

< 2.8

<3.0

<8.7

<3.3

< 2.4

< 2.7

< 2.5

< 2.8

<2.0

< 2.9

< 2.1

<3.0

< 3.4

<2.9

< 1.9

< 2.1

< 1.9

<2.2

< 5.5

< 4.4

< 4.6

< 8.5

< 7.0

< 7.4

< 4.9

<6.3

< 6.1

< 8.0

<4.8

<5.0

< 5.1

< 6.0

<2.5

< 2.4

< 2.5

< 3.6

< 2.5

< 1.6

< 3.0

< 3.3

<2.8

< 3.4

<2.9

< 3.0

< 2.8

< 3.0

< 1.7

< 2.3

< 2.9

< 2.7

< 1.7

<2.7

< 2.8

< 2.4

< 2.6

< 2.8

< 2.3

< 1.8

< 3.0

< 1.7

<2.2

<2.5

< 2.4

< 2.6

< 2.1

< 2.6

< 3.4

<2.2

< 2.7

<2.5

< 2.8

< 2.9 25A

< 5.2

< 3.9

< 4.0

< 3.6

< 4.2

< 3.9

< 5.3

< 3.9

< 4.2

< 3.9 26A

<4.7

<5.6

< 5.6

<4.0

< 5.0

< 5.4

< 5.6

< 3.7

<4.9 28A

< 4.0 29A

<5.3

<4.5

<4.7

< 4.0

< 5.5

< 4.2

< 4.9

< 6.1

< 4.2

< 4.1

<4.2

< 3.5

<4.5

< 3.9

<2.9

< 4.4

< 3.6

<3.9

< 3.4

<4.5

<4.0

< 7.3

< 3.1

< 3.8

<6.7

< 3.3

< 4.6

< 4.2

< 2.6

< 4.6

< 3.6

< 3.7

< 3.8

< 3.6

< 6.7 a LLDs for Ba-140 and/or La-140 not reached due to age of samples and smaller sample size.

22-17 sszr

< 6.5

< 5.8

< 4.4

< 6.2

< 5.9

<4.7

< 6.3

< 5.7

<4.2

< 4.4

< 5.3

< 6.4

< 4.2

< 7.3

< 5.8

<4.8

< 5.7

< 6.7

< 5.3

<4.1

< 4.1

< 4.4

< 5.9

<4.2

<4.7

< 4.4

<7.2

< 2.5

< 2.6

<2.7

< 2.8

<2.7

<2.6

< 2.7

<2.6

<2.8

< 2.7

< 3.2

<2.5

< 3.0

< 2.7

< 2.5

< 2.7

< 2.6

<3.3

< 2.9

< 3.1

<2.7

< 2.9

<2.9

< 2.4

< 2.8

< 2.0

< 3.2

< 2.4

< 2.2

< 3.1

< 2.1

<3.0

< 3.0

< 2.9

<2.8

< 2.1

< 3.1

<2.0

< 3.0

< 3.2

< 3.1

< 3.0

<2.6

<2.3

< 2.9

< 3.3

< 2.9

< 2.2

< 2.1

< 2.9

< 36.2

< 40.1

< 26.5

< 35.2

< 26.1

<22.7

< 50.1

< 37.8

< 46.0

< 26.4

< 27.3

< 40.6

< 22.3

< 158.9

< 32.0

<24.2

< 20.7

< 97.5

< 28.1

<24.1

< 26.5

< 23.2

< 36.2

< 31.0

<23.7

<22.2

< 17.1

< 76.5

< 7.6

< 10.6

< 7.0

< 9.7

< 6.8

<5.6

< 10.0

< 9.3

< 9.1

< 7.4

< 7.1

< 12.9

< 9.1

< 35.6 a

< 12.9

< 8.9

< 3.5

< 19.9 a

< 7.1

< 8.4

< 10.7

< 7.6

< 8.9

< 9.4

< 6.8

< 7.4

< 6.6

< 24.2 a

Table 22.

Groundwater Protection Program Summary.

Monitoring wells, analyses for gamma-emitting isotopes.

Collection Lab Code Date s4Mn 59Fe saco

oco

szn 95Nb oszr 134cs 131Cs 140Ba 140La MW-32A DWW-289 1/13/2017

< 3.3

< 6.3

< 2.1

< 2.2

< 4.4

< 3.5

< 6,0

<2.5

< 30.9

< 6.0 DWW-292 1/17/2017

< 3.0

< 6.6

< 2.7

<4.7

<4.1

< 7.0

< 2.8

< 3.3

< 27.1

< 4.4 DWW-677 2/6/2017

< 1.3

<4.2

< 2.9

<2.9

< 4.2

<2.7

< 5.6

< 2.8

< 2.9

< 34.9

< 10.1 DWW-758 2/22/2017

< 2.4

< 6.4

< 1.9

< 1.8

< 5.6

< 3.3

< 6.5

< 2.7

< 2.9

< 36.8

< 5.3 DWW-1078 3/8/2017

< 3.0

< 7.3

< 3.6

<2.2

< 5.4

< 5.2

< 6.3

< 2.8

< 2.9

< 50.1

< 11.7 DWW-1227 3/22/2017

< 2.9

< 4.5

< 3.0

< 3.3

< 4.9

< 4.1

< 6.0

< 2.6

< 3.0

< 29.0

< 6.9 DWW-1620 4/12/2017

< 2.4

< 4.5

< 2.7

< 2.6

< 4.5

< 3.9

< 5.8

< 2.8

< 3.1

< 29.1

< 6.7 DWW-2135 4/25/2017

< 2.7

< 5.1

< 1.7

< 1.8

<4.6

< 4.0

<4.6

< 2.6

< 43.5

< 9.4 DWW-2311 5/8/2017

< 3.1

<4.9

< 3.1

< 2.2

< 3.9

< 2.8

< 6.6

< 2.9

<2.6

< 28.8

< 11.3 DWW-2732 5/23/2017

< 2.2

< 4.9

< 3.0

<2.7

< 3,9

< 3.8

< 4.6

< 3.3

<2.2

< 24.1

< 9.1 DWW-3032 6/12/2017

< 1.9

< 4.7

< 2.8

<2.9

< 4.1

< 3.6

< 4.0

< 3.0

< 2.0

< 20.2

< 6.0 DWW-3764 7/5/2017

< 2.6

< 5.5

< 2.8

< 3.2

< 3.9

< 3.8

< 5.4

< 2.6

< 3.0

<42.2

< 11.1 DWW-3845 7/25/2017

<2.7

< 5.4

< 2.4

< 2.9

< 5.3

< 4.2

< 6.3

<2.8

< 2.9

< 40.5

< 16.7 a DWW-4163 8/8/2017

< 2.7

< 8.9

<2.0

< 2.4

<4.2

< 7.0

< 4.7

<2.6

< 2.4

< 167.8

< 42.7 a DWW-4733 9/12/2017

< 3.5

< 4.1

< 1.8

< 2.7

< 3.7

< 3.9

< 6.5

< 3.0

< 4.0

< 29.3

< 4.3 D-125 (Outfall #6)

DWW-243 1/17/2017

< 1.9

< 5.1

<2.0

< 1.8

<4.2

< 2.8

< 3.0

< 2.9

< 7.6

< 2.6 MH-114 DWW-3033 6/13/2017

< 2.1

< 4.3

< 2.7

< 3.6

< 3.7

< 4.1

< 3.0

< 2.2

< 19.7

< 6.6 MH-219 DWW-3034 6/13/2017

< 2.8

< 6.5

< 1.9

< 2.3

< 4.5

< 2.8

< 5.9

< 2.7

< 2.0

< 26.2

< 10.0 a LLDs for Ba-140 and/or La-140 not reached due to age of samples and smaller sample size.

22-18

Table 22.

Groundwater Protection Program Summary.

Monitoring wells, conditional analyses for gross alpha, iron-55, nickel-63, strontium-89 and strontium-90 a Lab Code DWW-289 DWW-294 DWW-285 DWW-286 DWW-287 DWW-291 DWW-292 DWW-290 DWW-293 DWW-295 DWW-297 DWW-674 DWW-663 DWW-664 DWW-667 DWW-668 DWW-669 DWW-670 DWW-671 DWW-672 DWW-673 DWW-676 DWW-677 DWW-754 DWW-755 DWW-757 DWW-758 DWW-1047 DWW-1048 DWW-1049 DWW-1050 DWW-1075 DWW-1076 DWW-1077 DWW-1078 DWW-1218 DWW-1219 DWW-1221 DWW-1222 DWW-1223 Collection Date 1/13/2017 1/13/2017 1/17/2017 1/17/2017 1/17/2017 1/17/2017 1/17/2017 1/18/2017 1/18/2017 1/18/2017 1/18/2017 1/20/2017 2/7/2017 2/7/2017 2/7/2017 2n/2017 2/7/2017 2/7/2017 2/7/2017 2/8/2017 2/8/2017 2/8/2017 2/6/2017 2/22/2017 2/22/2017 2/22/2017 2/22/2017 3/8/2017 3/9/2017 3/8/2017 3/8/2017 3/8/2017 3/8/2017 3/8/2017 3/8/2017 3/22/2017 3/22/2017 3/22/2017 3/22/2017 3/22/2017 Location mw-32a mw-29a mw-26a mw-25a d-128a mw-29a mw-32a d-134a mw-18a mw-23a mw-22a mw-29a d-127a d-128a d-134a mw-18a mw-21a mw-23a mw-22a mw-25a mw-26a mw-29a mw-32a mw-25a mw-26a mw-29a mw-32a d-128a d-134a mw-18a mw-23a mw-25a mw-26a mw-29a mw-32a d-128a d-134a mw-18 mw-22a mw-23a Gross Alpha 12.6 +/- 2.4

< 1.7 2.0 +/- 0.9 3.0+/-1.0

< 1.1 11.8 +/-2.1 11.6 +/-2.0 4.4 +/- 1.2 1.6+/-1.0 2.4+/-1.6 6.9 +/- 2.9 4.3+/-1.5

< 0.8

< 1.0

< 1.2

< 1.3 2.8+/-1.0

< 1.3 4.9 +/- 1.8 1.4 +/- 0.7 1.0 +/-0.8 1.4+/-1.0 10.7 +/- 2.0

< 1.0

< 1.1 1.5 +/- 0.8 3.9+/-1.0

< 1.0 1.3 +/- 0.9 1.4 +/- 0.9

< 1.3

< 1.2

< 1.1 1.2 +/-0.8 2.3+/-1.0

< 1.2 9.0 +/-2.0

< 1.1 3.6 +/- 1.9

< 1.5

< 602

< 598

< 616

< 582

< 604

< 568

< 565

< 628

< 582

< 571

< 600

< 619

< 600

< 623

< 627

< 643

< 586

< 631

< 608

< 622

< 615

< 611

< 573

< 742

< 746

< 728

< 742

< 772

< 778

< 764

<779

< 760

< 774

< 804

< 774

< 848

< 869

< 848

<742

< 779 a Analyses for gamma, gross alpha, Sr-89, Sr-90, Fe-55 and Nl-63 will be performed if trilium activity> 1 K pCi/L.

< 134

< 107

< 97

< 109

< 105

< 119

< 131

< 107

< 101

< 90

< 107

< 112

< 106

< 105

< 100

< 106

< 102

< 123

< 125

< 109

< 122

< 108

< 116

< 114

< 106

< 112

< 109

< 110

< 97

< 110

< 107

< 118

< 117

< 120

< 119

< 118

< 101

< 1.9

< 1.7

< 1.9

< 1.7

< 1.9

< 1.5

< 1.6

< 1.8

< 1.4

< 2.3

< 1.3

< 1.2

< 1.4

< 1.3

< 1.5

< 1.4

< 1.6

< 1.5

< 1.3

< 1.4

< 1.7

< 1.8

< 1.6

< 1.4

< 1.6

< 1.8

< 1.7

< 1.2

< 1.6

< 1.3

< 1.2

< 1.0

< 1.1

< 1.2

< 1.0

< 1.2

< 1.1

< 1.0

< 0.9

< 1.0

< 1.1

< 1.0

< 1.2

< 1.3

< 1.0

< 1.1

< 1.0

< 0.9

< 1.0

< 1.1

< 1.0

< 1.2

< 1.1

< 1.0

< 1.1

< 1.0

< 1.4

< 1.0

< 1.1

< 1.3

< 1.2

< 1.0

< 1.1 NOTE: Positive gross alpha results in groundwater are typically the result of the alpha decay of naturally occuring deposits of uranium and thorium and their daughters.

22-19

Table 22.

Groundwater Protection Program Summary.

Monitoring wells, conditional analyses for gross alpha, iron-55, nickel-63, st rontium-89 and st rontium-90 a Lab Code DWW-1224 DWW-1225 DWW-1226 DWW-1227 DWW-1530 DWW-1531 DWW-1532 DWW-1534 DWW-1535 DWW-1618 DWW-1620 DWW-1621 DWW-1622 DWW-2020 DWW-2021 DWW-2022 DWW-2023 DWW-2024 DWW-2134 DWW-2135 DWW-2310 DWW-2311 DWW-2309 DWW-2319 DWW-2303 DWW-2304 DWW-2306 DWW-2307 DWW-2308 DWW-2302 DWW-2497 DWW-2499 DWW-2579 DWW-2580 DWW-2581 DWW-2582 DWW-2583 DWW-2585 DWW-2732 Collection Date 3/22/2017 3/22/2017 3/22/2017 3/22/2017 4/10/2017 4/10/2017 4/10/2017 4/10/2017 4/10/2017 4/12/2017 4/12/2017 4/12/2017 4/13/2017 4/25/2017 4/25/2017 4/25/2017 4/25/2017 4/25/2017 4/25/2017 4/25/2017 5/8/2017 5/8/2017 5/9/2017 5/10/2017 5/10/2017 5/10/2017 5/10/2017 5/10/2017 5/10/2017 5/11/2017 5/23/2017 5/23/2017 5/23/2017 5/23/2017 5/23/2017 5/23/2017 5/23/2017 5/23/2017 5/23/2017 Location mw-25a mw-26a mw-29a mw-32a d-127a d-128a mw-18a mw-22a mw-23a mw-29a mw-32a mw-26a d-134a d-128a d-134a mw-18a mw-22a mw-23a mw-29a mw-32a mw-29a mw-32a mw-26a d-134a d-128a d-129a mw-18a mw-22a mw-23a d-127a d-134a d-129a d-127a d-128a mw-18a mw-22a mw-23a mw-29a mw-32a Gross Alpha 1.3 +/- 1.0 1.3 +/-0.9

< 1.2 2.4 +/- 0.9

< 0.7

< 1.0 1.4 +/- 0.8 1.6+/-1.0

< 1.2 1.4 +/-0.8 1.8 +/- 0.8 3.5+/-1.0 1.3 +/- 0.9

< 1.1

< 1.0

< 1.1

< 1.3

< 1.3 1.8 +/- 0.9 5.8+/-1.2

< 1.2 1.5 +/- 0.9

< 1.1

< 1.2

< 1.1

< 1.2

< 1.3

< 1.2

< 0.9

< 1.1 1.4 +/-0.9

< 0.7

< 1.1

< 1.0

< 0.9

< 1.1 1.5 +/- 0.9 1.1 +/- 0.8

< 765

< 760

< 751

< 784

<775

< 794

< 766

< 780

< 814

< 743

< 738

<726

< 756

< 857

< 806

< 831

< 826

< 836

< 847

< 778

< 783

< 773

< 766

< 818

< 802

< 782

< 740

< 773

< 767

< 759

< 739

< 745

< 741

< 702

< 727

< 784

< 727

< 741

Analyses for gamma, gross alpha, Sr-89, Sr-90, Fe-55 and Ni-63 will be performed if tritium activity > 1 K pCl/L.

< 93

< 102

< 93

< 103

< 84

< 94

< 95

< 94

< 107

< 94

< 93

< 90

< 102

< 101

< 85

< 91

< 108

< 106

< 105

< 113

< 84

< 85

< 86

< 85

< 92

< 87

< 88

< 106

< 84

< 88

< 87

< 86

< 89

< 87

< 90

< 87

< 88

< 91

< 90

< 1.4

< 1.2

< 1.3

< 1.2

< 1.7

< 1.9

< 1.5

< 2.5

< 1.5

< 1.8

< 2.0

< 1.7

< 1.5

< 1.2

< 2.0

< 2.5 b

< 1.2

< 1.4

< 1.8

< 1.5

< 1.6

< 1.7

< 2.5 b

< 1.6

< 3.2 b

< 1.5

< 1.3

< 1.6

< 2.0 b

< 1.9 b

< 1.2

< 1.5

< 1.8

< 1.4

< 1.5

< 1.7

< 1.3

< 1.1

< 1.0

< 1.1

< 1.0

< 1.3

< 1.0

< 1.2

< 1.1

< 0.9

< 1.0

< 1.5

< 1.8 b

< 0.9

< 1.0

< 1.2

< 1.3

< 1.0

< 1.1

< 1.0 b

< 1.0

< 1.4 b

< 0.9

< 1.4

< 1.1

< 1.2 b

< 1.0 b

< 1.1

< 1.0

< 1.1

< 0.9

<0.9

< 1.0

< 1.1 NOTE: Positive gross alpha results in groundwater are typically the result of the alpha decay of naturally occuring deposits of uranium and thorium and their daughters.

22-20

Table 22.

Groundwater Protection Program Summary.

Monitoring wells, conditional analyses for gross alpha, iron-55, nickel-63, strontium-89 and strontium-90 a Lab Code DWW-3023 DWW-3025 DWW-3028 DWW-3026 DWW-3027 DWW-3029 DWW-3030 DWW-3031 DWW-3032 DWW-3033 DWW-3034 DWW-3035 DWW-3036 DWW-3037 DWW-3038 DWW-3763 DWW-3764 DWW-3765 DWW-3766 DWW-3767 DWW-3768 DWW-3769 DWW-3770 DWW-3839 DWW-3840 DWW-3841 DWW-3842 DWW-3843 DWW-3844 DWW-3845 DWW-4163 DWW-4151 DWW-4215 DWW-4225 DWW-4230 DWW-4234 DWW-4235 DWW-4213 DWW-4725 DWW-4726 DWW-4728 DWW-4729 Collection Date 5/24/2017 6/2/2017 6/2/2017 6/7/2017 6/12/2017 6/12/2017 6/12/2017 6/12/2017 6/12/2017 6/13/2017 6/13/2017 6/12/2017 6/12/2017 6/12/2017 6/12/2017 7/5/2017 7/5/2017 7/5/2017 7/5/2017 7/5/2017 7/5/2017 7/5/2017 7/5/2017 7/25/2017 7/25/2017 7/25/2017 7/25/2017 7/25/2017 7/25/2017 7/25/2017 8/8/2017 8/9/2017 8/9/2017 8/9/2017 8/9/2017 8/9/2017 8/9/2017 8/10/2017 9/12/2017 9/12/2017 9/12/2017 9/12/2017 Location d-127a d-127a mw-1Ba d-127a d-128a mw-22a mw-23a mw-29a mw-32a mh-114 mh-219 d-127a d-129a d-134a mw-26a mw-23a mw-32a d-127a d-128a d-134a mw-18a mw-22a mw-29a d-127a d-128a mw-18a d-134a mw-22a mw-23a mw-32a mw-32a mw-26a d-128a d-134a mw-18a mw-22a mw-23a d-127a d-127a d-128a d-134a mw-18a Gross Alpha

< 0.7

< 1.2

< 1.0

< 1.0 1.2+/-1.0

< 1.0 1.3 +/- 0.9

< 1.1

< 0.8

< 2.7

< 1.2 1.3 +/- 0.8

< 1.1

< 1.1 2.1+/-1.1 1.9 +/- 0.9 1.1+/-0.7

< 1.1

< 1.2

< 1.0

< 1.5

< 1.4

< 0.9

< 1.2

< 1.1

< 1.3

< 1.5

< 1.7

< 1.2

< 1.1

< 1.2

< 1.5

< 1.4

< 1.2

< 1.0

< 1.3 1.9+/-1.1

< 1.3

< 681

< 661

< 746

< 738

< 727

< 736

< 709

< 736

< 722

< 749

< 722

< 714

< 718

< 727

< 741

< 794

< 775

< 804

< 830

< 794

< 846

< 804

< 799

< 803

< 763

< 740

<773

< 763

< 740

< 754

< 765

< 755

< 733

< 728

< 741

< 774

< 751

< 745

< 756

< 800

< 751

< 756 a Analyses for gamma, gross alpha, Sr-89, Sr-90, Fe-55 and Ni-63 will be performed if tritium activity> 1K pCl/L.

< 89

< 87

< 86

< 90

< 86

< 88

< 87

< 85

<87

< 86

< 88

< 89

< 68

< 66

< 67

< 64

< 67

< 96

< 95

< 91

< 85

< 86

< 85

< 87

< 88

< 86

< 88

< 86

< 85

< 87

< 85

<2.1

<2.4

< 2.3

< 2.5

< 1.8

< 1.9

< 1.8

< 1.9

< 1.7

< 2.0

< 2.5

< 1.7

< 1.6

< 2.3

< 1.6

< 2.4

< 2.6

< 2.4

< 2.3

< 2.1

< 2.5

< 2.6

< 2.2

< 1.9

< 1.6

< 1.8

< 1.9

< 1.6

< 2.5

< 2.1

< 1.9

< 1.5

< 1.6

< 1.7

< 1.3

< 1.2

< 1.6

< 1.5

< 0.9

< 1.2

< 1.1

< 1.5

< 1.0

< 1.1

< 1.0

< 1.1

< 1.0

< 1.1

< 1.4

< 1.0

< 0.9

< 1.3

< 0.9

< 1.0

< 0.9

< 1.0

< 0.9

< 0.8

< 0.9

< 1.0

< 0.8

< 1.0

< 0.9

< 1.0

< 1.1

< 0.9

< 1.0

< 1.4

< 0.9

< 0.8

< 1.2

< 1.1 NOTE: Positive gross alpha results in groundwater are typically the result of the alpha decay of naturally occuring deposits of uranium and thorium and their daughters.

22-21

Table 22.

Groundwater Protection Program Summary.

Monitoring wells, conditional analyses for gross alpha, iron-55, nickel-63, st ront ium-89 and st rontium-90 a Collection Lab Code Date Location Gross Alpha 55Fe 6aNi as Sr so Sr DWIN-4730 9/12/2017 rnw-22a

< 1.5

< 729

< 85

< 1.4

< 1.0 DWIN-4733 9/12/2017 mw-32a

< 1.1

< 751

< 85

< 1.4

< 1.0 DWIN-5688 10/9/2017 d-127a

< 0.9

< 767

< 71

< 1.7

< 0.9 DWIN-5689 10/9/2017 d-128a

< 1.3

< 740

< 68

< 1.7

< 0.9 DWIN-5691 10/9/2017 d-134a

< 1.3

< 772

<68

< 1.4

< 0.8 DWIN-5692 10/9/2017 mw-18a

< 1.4

< 732

< 68

< 1.5

< 0.8 DWIN-5693 10/9/2017 rnw-22a

< 1.4

< 732

< 71

< 1.5

< 0.9 DWIN-6073 11/8/2017 d-127a

< 0.9

< 815

< 66

< 1.8

< 1.1 DWIN-6074 11/8/2017 d-128a

< 1.3

< 800

< 66

< 1.4

< 0.9 DWIN-6076 11/8/2017 rnw-18a

< 1.2

< 815

< 66

< 1.5

< 1.0 DWIN-6077 11/8/2017 mw-22a 1.0 +/-0.7

< 941

< 67

< 1.4

< 1.0 DWIN-6078 11/6/2017 mw-28a 5.8+/-1.2

< 836

< 68

< 1.6

< 1.1 DWIN-6113 11/8/2017 mw-23a

< 1.5

< 800

< 70

< 1.7

< 1.1 DWIN-6516 12/11/2017 d-128a

< 1.6

< 665

< 67

< 1.7

< 1.0 DWIN-6517 12/11/2017 d-134a 4.6+/-1.1

< 665

< 69

< 1.5

< 1.0 DWIN-6519 12/11/2017 mw-22a 2.0+/-1.3

< 669

< 69

< 1.4

< 0.8 DWIN-6515 12/12/2017 d-127a

< 0.8

< 689

< 68

< 1.6

< 1.0

' Analyses for gamma, gross alpha, Sr-89, Sr-90, Fe-55 and Ni-63 will be performed if tritium activity> 1K pCi/L.

NOTE: Positive gross alpha results in groundwater are typically the result of the alpha decay of naturally occuring deposits of uranium and thorium and their daughters.

22-22

~*L All Environmental, Inc.

'+~ r\\.. I Midwest laboratory 700 Landwehr Road* Northbrook, IL 60062-2310 phone (847) 564-0700 *fax (847) 564-4517 NOTE:

APPENDIX A INTERLABORATORY COMPARISON PROGRAM RESULTS AND INTRALABORATORY COMPARISON PROGRAM RESULTS Appendix A is updated four times a year. The complete appendix is included in March, June, September and December monthly progress reports only.

January, 2017 through December, 2017

Appendix A lnterlaboratory/ lntralaboratory Comparison Program Results Environmental, Inc., Midwest Laboratory has participated in interlaboratory comparison (crosscheck) programs since the formulation of it's 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 laboratory's 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 RAD PT Study Proficiency Testing 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 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 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 MRAD PT Study Proficiency Testing 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 ANALYSES 8

Analysis Gamma Emitters Strontium-89b Strontium-90b Potassium-40 Gross alpha Gross beta Tritium Radium-226,-228 Plutonium lodine-131, lodine-129b Uranium-238, Nickel-63b Technetium-99b lron-55b other Analyses b Level 5 to 100 pCi/liter or kg

> 100 pCi/liter or kg 5 to 50 pCi/liter or kg

> 50 pCi/liter or kg 2 to 30 pCi/liter or kg

> 30 pCi/liter or kg

0.1 g/liter or kg

20 pCi/liter

> 20 pCi/liter

100 pCi/liter

> 100 pCi/liter

4,000 pCi/liter

> 4,000 pCi/liter

0.1 pCi/liter

0.1 pCi/liter, gram, or sample

55 pCi/liter

> 55 pCi/liter

35 pCi/liter

> 35 pCi/liter 50 to 100 pCi/liter

> 100 pCi/liter a From EPA publication, "Environmental Radioactivity Laboratory lntercomparison Studies Program", Fiscal Year, 1981-1982, EPA-600/4-81-004.

b Laboratory limit.

A2 One standard deviation for single determination 5.0 pCi/liter 10% of known value 5.0 pCi/liter 10% of known value 5.0 pCi/liter 10% of known value 10% of known value 5.0 pCi/liter 25% of known value 5.0 pCi/liter 10% of known value

+/- 1cr =

169.85 x (known)0*0933 10% of known value 15% of known value 10% of known value 6 pCi/liter 10% of known value 6 pCi/liter 15% of known value 10 pCi/liter 10% of known value 20% of known value

TABLE A-1. lnterlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA) 8 RAD study Concentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Result Result Limits Acceptance ERW-95 1/9/2017 Sr-89 51.9 +/- 4.6 55.5 44.3 - 63.2 Pass ERW-95 1/9/2017 Sr-90 43.6 +/- 2.4 43.1 31.8 - 49.5 Pass ERW-97 1/9/2017 Ba-133 78.2 +/- 4.1 85.6 72.0 - 94.2 Pass ERW-97 1/9/2017 Cs-134 53.9 +/- 3.8 52.6 42.4 - 57.9 Pass ERW-97 1/9/2017 Cs-137 122 +/- 6 112 101 -126 Pass ERW-97 1/9/2017 Co-60 117 +/- 4 113 102 - 126 Pass ERW-97 1/9/2017 Zn-65 208 +/- 13 189 170 - 222 Pass ERW-99 1/9/2017 Gr. Alpha 48.9 +/- 2.4 52.3 27.3 - 65.5 Pass ERW-99 1/9/2017 Gr. Beta 37.1 +/- 1.3 41.6 27.7 - 49.0 Pass ERW-101 1/9/2017 1-131 22.3 +/- 0.6 24.3 20.2 - 28.8 Pass ERW-103 1/9/2017 Ra-226 11.3 +/- 0.4 12.7 9.5 - 14.7 Pass ERW-103 1/9/2017 Ra-228 6.10 +/- 0.90 6.20 3.8 - 8.1 Pass ERW-103 1/9/2017 Uranium 11.8 +/- 0.8 12.6 9.9 - 14.4 Pass ERW-106 1/9/2017 H-3 12,600 +/- 300 12,500 10,900 - 13,800 Pass ERW-3344 7/10/2017 Sr-89 29.0 +/- 10.0 26.4 18.4 - 32.9 Pass ERW-3344 711012017 Sr-90 33.8 +/- 3.3 36.0 26.4 - 41.5 Pass ERW-3346 7/10/2017 Ba-133 66.4 +/- 4.1 66.3 55.2 - 72.9 Pass ERW-3346 7/10/2017 Cs-134 27.0 +/- 4.3 24.4 18.7 - 27.2 Pass ERW-3346 7/10/2017 Cs-137 57.4 +/- 4.5 51.6 46.4 - 59.6 Pass ERW-3346 7/10/2017 Co-60 92.6 +/- 4.4 88.6 79.7 - 99.8 Pass ERW-3346 7/10/2017 Zn-65 32.4 +/- 6.0 32.7 27.3 -41.6 Pass ERW-3348 7/10/2017 Gr. Alpha 23.7+/-1.9 25.7 13.0 - 34.1 Pass ERW-3348 7/10/2017 Gr. Beta 54.6+/-1.6 63.0 43.5 - 69.6 Pass ERW-3350 7/10/2017 1-131 25.4 +/- 1.3 25.5 21.2 - 30.1 Pass ERW-3352 7/10/2017 Ra-226 1.38 +/-0.15 1.29 1.07 - 1.95 Pass ERW-3352 7/10/2017 Ra-228 6.70 +/- 0.93 5.66 3.45 - 7.47 Pass ERW-3352 7/10/2017 Uranium 58.4 +/- 0.9 66.7 54.3 - 73.9 Pass ERW-3354 7/10/2017 H-3 5,254 +/- 224 5,060 4,340 - 5,570 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).

A1-1

TABLE A-2. Thermoluminescent Dosimetry, (TLD, CaS04: Dy Cards).

a mrem Lab Code Irradiation Delivered Reported b Performance c Date Description Dose Dose Quotient (P)

Environmental. Inc.

Group 1 2017-1 10/16/2017 Spike 1 59.0 49.3

-0.16 2017-1 10/16/2017 Spike 2 59.0 53.2

-0.10 2017-1 10/16/2017 Spike 3 59.0 52.7

-0.11 2017-1 10/16/2017 Spike 4 59.0 53.4

-0.09 2017-1 10/16/2017 Spike 5 59.0 51.8

-0.12 2017-1 10/16/2017 Spike 6 59.0 54.0

-0.08 2017-1 10/16/2017 Spike 7 59.0 52.0

-0.12 2017-1 10/16/2017 Spike 8 59.0 52.6

-0.11 2017-1 10/16/2017 Spike 9 59.0 54.6

-0.07 2017-1 10/16/2017 Spike 10 59.0 50.4

-0.15 2017-1 10/16/2017 Spike 11 59.0 53.9

-0.09 2017-1 10/16/2017 Spike 12 59.0 55.7

-0.06 2017-1 10/16/2017 Spike 13 59.0 50.2

-0.15 2017-1 10/16/2017 Spike 14 59.0 52.4

-0.11 2017-1 10/16/2017 Spike 15 59:0 54.3

-0.08 2017-1 10/16/2017 Spike 16 59.0 53.2

-0.10 2017-1 10/16/2017 Spike 17 59.0 50.1

-0.15 2017-1 10/16/2017 Spike 18 59.0 52.3

-0.11 2017-1 10/16/2017 Spike 19 59.0 50.3

-0.15 2017-1 10/16/2017 Spike 20 59.0 50.7

-0.14 2017-1 10/16/2017 Spike 21 59.0 53.1

-0.10 2017-1 10/16/2017 Spike 22 59.0 51.5

-0.13 2017-1 10/16/2017 Spike 23 59.0 54.4

-0.08 2017-1 10/16/2017 Spike 24 59.0 53.3

-0.10 2017-1 10/16/2017 Spike 25 59.0 53.7

-0.09 2017-1 10/16/2017 Spike 26 59.0 51.6

-0.13 2017-1 10/16/2017 Spike 27 59.0 51.5

-0.13 2017-1 10/16/2017 Spike 28 59.0 51.6

-0.13 2017-1 10/16/2017 Spike 29 59.0 49.9

-0.15 2017-1 10/16/2017 Spike 30 59.0 55.3

-0.06 Mean (Spike 1-30) 52.4

-0.11 Pass ct Standard Deviation (Spike 1-30) 1.7 0.03 Pass ct a TLD's were irradiated by the University of Wisconsin-Madison Radiation Calibration Laboratory following ANSI N13.37 protocol from a known air kerma rate. TLD's were read and the results were submitted by Environmental Inc. to the University of Wisconsin-Madison Radiation Calibration Laboratory for comparison to the delivered dose.

b Reported dose was converted from exposure (R) to Air Kerma (cGy) using a conversion of 0.876. Conversion from air kerma to ambient dose equivalent for Cs-137 at the reference dose point H*(1 O)Ka = 1.20. mrem/cGy = 1000.

c Performance Quotient (P) is calculated as ((reported dose - conventially true value) + conventially true value) where the conventially true value is the delivered dose.

d Acceptance is achieved when neither the absolute value of mean of the P values, nor the standard deviation of the P values exceed 0.15.

A2-1

TABLE A-2. Thermoluminescent Dosimetry, (TLD, CaS04: Dy Cards).

a mrem Lab Code Irradiation Delivered Reported b Performance c Date Description Dose Dose Quotient (P)

Environmental, Inc.

Group 2 2017-2 10/16/2017 Spike 31 186.0 164.7

-0.11 2017-2 10/16/2017 Spike 32 186.0 172.0

-0.08 2017-2 10/16/2017 Spike 33 186.0 167.3

-0.10 2017-2 10/16/2017 Spike 34 186.0 160.6

-0.14 2017-2 10/16/2017 Spike 35 186.0 171.7

-0.08 2017-2 10/16/2017 Spike 36 186.0 177.0

-0.05 2017-2 10/16/2017 Spike 37 186.0 176.7

-0.05 2017-2 10/16/2017 Spike 38 186.0 165.5

-0.11 2017-2 10/16/2017 Spike 39 186.0 174.6

-0.06 2017-2 10/16/2017 Spike 40 186.0 172.7

-0.07 2017-2 10/16/2017 Spike 41 186.0 167.8

-0.10 2017-2 10/16/2017 Spike 42 186.0 161.0

-0.13 2017-2 10/16/2017 Spike 43 186.0 166.3

-0.11 2017-2 10/16/2017 Spike 44 186.0 172.4

-0.07 2017-2 10/16/2017 Spike 45 186.0 173.0

-0.07 2017-2 10/16/2017 Spike 46 186.0 169.5

-0.09 2017-2 10/16/2017 Spike 47 186.0 169.0

-0.09 2017-2 10/16/2017 Spike 48 186.0 166.9

-0.10 2017-2 10/16/2017 Spike 49 186.0 165.9

-0.11 2017-2 10/16/2017 Spike 50 186.0 166.7

-0.10 2017-2 10/16/2017 Spike 51 186.0 161.1

-0.13 2017-2 10/16/2017 Spike 52 186.0 173.4

-0.07 2017-2 10/16/2017 Spike 53 186.0 173.1

-0.07 2017-2 10/16/2017 Spike 54 186.0 160.0

-0.14 2017-2 10/16/2017 Spike 55 186.0 166.1

-0.11 2017-2 10/16/2017 Spike 56 186.0 164.5

-0.12 2017-2 10/16/2017 Spike 57 186.0 163.8

-0.12 2017-2 10/16/2017 Spike 58 186.0 159.9

-0.14 2017-2 10/16/2017 Spike 59 186.0 165.6

-0.11 2017-2 10/16/2017 Spike 60 186.0 165.0

-0.11 Mean (Spike 31-60) 167.8

-0.10 Passd Standard Deviation (Spike 31-60) 5.0 0.03 Passd a TLD's were irradiated by the University of Wisconsin-Madison Radiation Calibration Laboratory following ANSI N13.37 protocol from a known air kerma rate. TLD's were read and the results were submitted by Environmental Inc. to the University of Wisconsin-Madison Radiation Calibration Laboratory for comparison to the delivered dose.

b Reported dose was converted from exposure (R) to Air Kerma (cGy) using a conversion of 0.876. Conversion from air kerma to ambient dose equivalent for Cs-137 at the reference dose point H*(1 O)K. = 1.20. mrem/cGy = 1000.

c Performance Quotient (P) is calculated as ((reported dose - conventially true value) + conventially true value) where the conventially true value is the delivered dose.

d Acceptance is achieved when neither the absolute value of mean of the P values, nor the standard deviation of the P values exceed 0.15.

A2-2

TABLE A-3. In-House "Spiked" Samples Concentration a Lab Code b Date Analysis Laboratory results Known Control 2s, n=1° Activity Umitsd Acceptance W-010417 4/29/2016 Cs-134 38.2 +/- 8.1 36.2 29.0 - 43.4 Pass W-010417 4/29/2016 Cs-137 78.0 +/- 8.8 71.9 57.5 - 86.3 Pass SPW-306 1/4/2017 Ra-226 18.1 +/- 0.4 16.7 13.4 - 20.1 Pass SPW-32 1/6/2017 H-3 17,849 +/- 393 17,243 10,346 - 24,140 Pass SPW-46 1/9/2017 Gr. Alpha 20.0 +/- 0.4 20.1 16.1 - 24.1 Pass SPW-46 1/9/2017 Gr. Beta 29.0 +/- 0.3 28.9 23.1 - 34.6 Pass SPW-92 1/11/2017 H-3 18,095 +/- 397 17,243 10,346 - 24,140 Pass SPW-142 1/12/2017 Sr-90 39.4 +/- 2.3 36.6 29.3 - 43.9 Pass SPW-155 1/19/2017 H-3 17,974 +/- 400 17,243 10,346 - 24,140 Pass SPW-186 1/23/2017 H-3 17,383 +/- 366 17,243 10,346 - 24,140 Pass SPW-232 1/19/2017 H-3 17,542 +/- 368 17,243 10,346 - 24,140 Pass SPW-304 1/26/2017 H-3 17,782 +/-400 17,243 10,346 - 24,140 Pass SPW-333 1/30/2017 H-3 17,910 +/- 406 17,243 10,346 - 24,140 Pass SPW-353 2/2/2017 U-234 47.8 +/- 2.3 41.7 33.4 - 50.0 Pass SPW-353 2/2/2017 U-238 50.4 +/- 2.4 41.7 33.4 - 50.0 Pass W-020217 4/29/2016 Cs-134 33.7 +/-6.1 36.2 29.0 - 43.4 Pass W-020217 4/29/2016 Cs-137 78.4 +/- 7.3 71.9 57.5 - 86.3 Pass SPW-412 2/6/2017 Sr-90 36.2 +/- 2.4 36.6 29.3 - 43.9 Pass SPW-465 21812017 H-3 17,573 +/- 396 17,243 10,346 - 24,140 Pass SPW-561 2/15/2017 H-3 17,358 +/- 395 17,243 10,346 - 24,140 Pass SPW-605 2/16/2017 H-3 17,820 +/- 401 17,243 10,346 - 24,140 Pass SPW-657 2/17/2017 H-3 17,614 +/- 376 17,243 10,346 - 24,140 Pass SPW-714 2/23/2017 H-3 17,662 +/- 400 17,243 10,346 - 24,140 Pass SPW-737 2/28/2017 H-3 17,196 +/- 395 17,243 10,346 - 24,140 Pass SPAP-740 2/28/2017 Gr. Beta 38.9 +/- 0.1 41.5 33.2 - 49.8 Pass SPAP-742 2/24/2017 Cs-134 1.05 +/- 0.60 0.98 0.78 -1.18 Pass SPAP-742 2/24/2017 Cs-137 90.4 +/- 2.5 92.9 74.3 -111.5 Pass SPW-746 2/28/2017 Sr-90 42.8 +/- 2.5 36.6 29.3 - 43.9 Pass SPW-748 2/28/2017 C-14 4270 +/- 17 4735 3788 - 5682 Pass SPW-750 2/28/2017 Ni-63 463 +/-4 400 240 - 560 Pass SPF-752 2/28/2017 Cs-134 1033 +/- 38 1090 870 - 1300 Pass SPF-752 2/28/2017 Cs-137 3071 +/- 61 2820 2250 - 3380 Pass SPW-781 3/1/2017 Ra-226 18.1 +/- 0.4 16.7 13.4 -20.1 Pass SPW-783 3/1/2017 H-3 17,653 +/- 400 17,243 13,794 - 20,692 Pass W-030517 4/29/2016 Cs-134 38.0 +/- 9.0 36.2 29.0 - 43.4 Pass W-030517 4/29/2016 Cs-137 80.9 +/- 9.2 71.9 57.5 - 86.3 Pass SPW-1010 3/14/2017 H-3 17,312 +/- 395 17,243 13,794 - 20,692 Pass SPW-1026 3/16/2017 Gr. Alpha 22.4 +/- 0.5 20.1 12.0-28.1 Pass SPW-1026 3/16/2017 Gr. Beta 29.2 +/- 0.3 28.9 17.3 - 40.4 Pass SPW-1092 3/21/2017 H-3 17,252 +/- 390 17,243 13,794 - 20,692 Pass SPW-1151 3/24/2017 H-3 17,009 +/- 388 17,243 13,794 - 20,692 Pass SPW-1163 3/28/2017 Sr-90 39.0 +/- 2.3 36.3 29.0 - 43.5 Pass SPW-1178 3/29/2017 Ra-228 15.1 +/- 1.9 16.0 9.6 - 22.4 Pass A3-1

TABLE A-3. In-House "Spiked" Samples Concentration a Lab Code b Date Analysis Laboratory results Known Control 2s, n=1c Activity Limits ct Acceptance SPW-1232 3/30/2017 H-3 17,150 +/- 390 17,243 13,794 - 20,692 Pass SPW-1246 3/31/2017 1-131 (G) 33.0 +/- 7.3 36.6 29.3 -43.9 Pass SPW-1246 3/31/2017 Cs-134 28.9 +/- 4.6 26.6 21.3-31.9 Pass SPW-1246 3/31/2017 Cs-137 80.6 +/- 8.2 70.4 56.3 - 84.5 Pass SPMl-1248 3/31/2017 l-131(G) 39.8 +/- 7.0 36.6 29.3 - 43.9 Pass SPMl-1248 3/31/2017 Cs-134 26.9 +/- 5.9 26.6 21.3-31.9 Pass SPMl-1248 3/31/2017 Cs-137 70.4 +/- 6.9 70.4 56.3 - 84.5 Pass SPMl-1248 3/31/2017 1-131 36.2 +/- 0.6 36.6 29.3 - 43.9 Pass SPW-1295 3/31/2017 Ra-226 17.9 +/- 0.4 16.7 13.4-20.1 Pass SPW-1304 4/4/2017 H-3 17,741 +/- 398 17,243 13,794 - 20,692 Pass SPW-1359 4/5/2017 1-131 44.3 +/- 0.5 47.6 38.1 - 57.1 Pass SPW-1378 4/7/2017 H-3 17,528 +/- 395 17,243 13,794 - 20,692 Pass SPW-1391 4/7/2017 Gr. Alpha 21.1+/-0.4 20.1 12.0 - 28.1 Pass SPW-1391 4/7/2017 Gr. Beta 27.8 +/- 0.3 28.2 17.3 - 40.4 Pass SPW-1480 4/12/2017 H-3 17,399 +/- 392 17,243 13,794 - 20,692 Pass W-041317 4/29/2016 Cs-134 34.6 +/- 5.6 36.2 29.0 - 43.4 Pass W-041317 4/29/2016 Cs-137 81.9 +/- 8.0 71.9 57.5 - 86.3 Pass SPW-1480 4/12/2017 H-3 17,399 +/- 392 17,243 13, 794 - 20,692 Pass SPW-1575 4/18/2017 H-3 17,419 +/-393 17,243 13, 794 - 20,692 Pass SPW-1626 4/20/2017 Sr-90 37.2 +/- 2.4 36.3 29.0 - 43.5 Pass SPW-1658 4/21/2017 H-3 17,194 +/-391 17,243 13,794 - 20,692 Pass SPW-1776 4/26/2017 H-3 16,609 +/- 386 17,243 13,794 - 20,692 Pass SPW-1806 4/27/2017 H-3 17,203 +/- 390 17,243 13,794 - 20,692 Pass SPW-1937 5/3/2017 H-3 16,690 +/- 385 17,243 13,794 - 20,692 Pass SPW-1971 5/5/2017 Sr-90 41.5 +/- 2.2 36.3 29.0 -43.5 Pass SPW-2033 5/8/2017 H-3 16,780 +/- 386 17,243 13,794 - 20,692 Pass SPW-2420 5/9/2017 Ra-226 16.3 +/- 0.5 16.7 13.4 - 20.1 Pass W-051517 4/29/2016 Cs-134 36.3 +/- 5.0 36.2 29.0 - 43.4 Pass W-051517 4/29/2016 Cs-137 68.9 +/- 6.6 71.9 57.5 - 86.3 Pass SPW-2284 5/22/2017 H-3 16,935 +/- 389 16,703 13,362 - 20,043 Pass SPW-2354 5/23/2017 H-3 17,006 +/- 390 16,700 13,360 - 20,040 Pass SPW-2891 5/23/2017 Ra-226 17.5+/-0.4 16.7 13.4 - 20.1 Pass SPW-2418 5/23/2017 Ra-228 14.0+/-1.8 16.0 11.2 - 20.8 Pass SPW-2439 5/25/2017 Ra-228 13.0 +/- 1.8 16.0 11.2 -20.8 Pass SPMl-2378 5/24/2017 Sr-89 83.7 +/-4.9 98.4 78.7-118.1 Pass SPMl-2378 5/24/2017 Sr-90 39.5+/-1.5 36.1 28.9 - 43.4 Pass SPW-2468 5/26/2017 H-3 17,065 +/- 391 16,692 13,354 - 20,031 Pass SPW-2848 5/26/2017 1-131 56.4 +/- 0.6 58.3 46.6 - 70.0 Pass SPW-2502 6/1/2017 H-3 17,596 +/- 396 16,677 13,342 - 20,012 Pass SPW-2659 6/5/2017 H-3 17,027 +/- 390 16,677 13,342 - 20,012 Pass SPW-2790 6/9/2017 H-3 17,101 +/- 392 17,101 13,325 - 19,988 Pass A3-2

TABLE A-3. In-House "Spiked" Samples Concentration a Lab Code b Date Analysis Laboratory results Known Control 2s, n=1 c Activity Limits d Acceptance SPW-2798 6/12/2017 H-3 16,683 +/- 364 16,649 13,319 - 19,978 Pass SPW-2943 6/19/2017 Sr-90 39.2 +/- 2.3 36.1 28.9 - 43.4 Pass SPW-3509 6/15/2017 Ra-226 17.6 +/- 0.5 16.7 13.4 -20.1 Pass W-061317 4/29/2016 Cs-134 35.0 +/- 6.2 36.2 29.0 - 43.4 Pass W-061317 4/29/2016 Cs-137 77.4 +/- 7.8 71.9 57.5 - 86.3 Pass SPW-3041 6/23/2017 H-3 16,419 +/- 378 16,620 13,296 -19,945 Pass SPW-3511 6/23/2017 Ra-226 15.5 +/- 0.6 16.7 13.4 -20.1 Pass SPW-3103 6/28/2017 H-3 16,507 +/- 380 16,507 13,286 - 19,929 Pass SPW-3117 6/29/2017 Tc-99 112.7+/-1.9 107.8 86.2 - 129.4 Pass SPW-3513 6/29/2017 Ra-226 17.8 +/- 0.5 16.7 13.4 - 20.1 Pass SPW-3188 7/3/2017 Sr-90 38.1 +/- 2.2 36.1 28.9 - 43.4 Pass SPW-3283 7/11/2017 H-3 16,057 +/- 347 16,649 13,319 -19,978 Pass SPW-4054 7/11/2017 Ra-226 17.7 +/- 0.4 16.0 11.2 - 20.8 Pass SPW-3467 7/14/2017 Gr. Alpha 22.3 +/- 0.5 20.1 12.0 -28.1 Pass SPW-3467 7/14/2017 Gr. Beta 29.1 +/- 0.3 28.2 17.3 - 40.4 Pass SPW-3449 7/15/2017 H-3 17,196 +/- 393 16,507 13,286 - 19,929 Pass SPW-3548 7/19/2017 H-3 16,764 +/- 386 16,507 13,286 -19,929 Pass SPW-3728 7/24/2017 H-3 16,117 +/- 354 16,507 13,286 - 19,929 Pass SPW-3794 7/28/2017 H-3 16,645 +/- 384 16,507 13,286 -19,929 Pass W-072817 4/29/2016 Cs-134 38.6 +/- 5.6 36.2 29.0 -43.4 Pass W-072817 4/29/2016 Cs-137 76.5 +/- 7.6 71.9 57.5 - 86.3 Pass SPW-3905 8/3/2017 Gr. Alpha 22.3 +/- 0.5 20.1 12.0 -28.1 Pass SPW-3905 8/3/2017 Gr. Beta 27.6 +/- 0.3 28.2 17.3 - 40.4 Pass SPW-4030 8/9/2017 H-3 17,636 +/- 403 16,507 13,286 - 19,929 Pass SPW-4086 8/14/2017 H-3 17,472 +/- 401 16,507 13,286 - 19,929 Pass SPW-4207 8/17/2017 H-3 17,013 +/- 393 16,507 13,286 -19,929 Pass W-083017 4/29/2016 Cs-134 34.7 +/- 6.4 36.2 29.0 - 43.4 Pass W-083017 4/29/2016 Cs-137 78.2 +/- 6.7 71.9 57.5 - 86.3 Pass SPW-4241 8/19/2017 H-3 17,222 +/-371 16,507 13,286 - 19,929 Pass SPW-4458 9/1/2017 Ra-226 14.1+/-1.8 16.7 13.4 -20.1 Pass SPW-4466 9/6/2017 Sr-89 22.8 +/- 8.5 26.4 21.1-31.7 Pass SPW-4466 9/6/2017 Sr-90 32.5 +/- 2.1 33.8 27.0 - 40.6 Pass

.SPW-4512 9/8/2017 Gr. Alpha 19.2 +/- 0.4 20.1 10.1 - 30.2 Pass SPW-4512 9/8/2017 Gr. Beta 27.8 +/- 0.3 27.9 22.3 - 33.5 Pass SPW-4586 9/9/2017 H-3 16,586 +/- 362 16,507 13,286 - 19,929 Pass SPW-4720 9/16/2017 H-3 16,439 +/- 362 16,507 13,286 - 19,929 Pass SPW-4834 9/22/2017 H-3 16,238 +/- 378 16,507 13,286 - 19,929 Pass SPW-4935 9/27/2017 H-3 16,595 +/- 381 16,507 13,286 - 19,929 Pass SPW-4937 9/27/2017 Ra-228 5.7 +/- 0.9 5.8 4.1 - 7.5 Pass W-092717 4/29/2016 Cs-134 36.0 +/- 5.9 36.2 29.0 - 43.4 Pass W-092717 4/29/2016 Cs-137 82.6 +/- 8.5 71.9 57.5 - 86.3 Pass SPW-5001 9/29/2017 H-3 16,446 +/- 358 16,507 13,286 - 19,929 Pass A3-3

TABLE A-3. In-House "Spiked" Samples Concentration a Lab Code b Date Analysis Laboratory results Known Control 2s,n=1c Activity Limits d Acceptance SPW-5134 10/6/2017 H-3 16,128 +/- 373 16,507 13,286 - 19,929 Pass SPW-5274 10/12/2017 H-3 16,108 +/- 374 16,507 13,286 - 19,929 Pass W-101217S 10/12/2017 Fe-55 1,491 +/- 77 1,482 1,186-01,778 Pass SPW-5408 10/18/2017 Ni-63 203 +/-3 199 159 - 238 Pass SPW-5430 10/19/2017 H-3 16,453 +/- 380 16,507 13,286 - 19,929 Pass W-102017 4/29/2016 Cs-134 31.3 +/-4.9 36.2 29.0 - 43.4 Pass W-102017 4/29/2016 Cs-137 80.4 +/- 6.9 71.9 57.5 - 86.3 Pass SPW-5674 10/25/2017 H-3 16,313 +/- 380 16,507 13,286 - 19,929 Pass SPW-5719 10/27/2017 H-3 16,113 +/-350 16,507 13,286 - 19,929 Pass SPW-5730 10/31/2017 H-3 16,776 +/- 387 16,507 13,286 - 19,929 Pass SPW-5944 10/27/2017 Ra-226 16.4 +/- 0.5 16.7 13.4 - 20.1 Pass SPW-5915 11/9/2017 H-3 16,930 +/- 390 16,507 13,286 - 19,929 Pass SPW-5989 11/11/2017 H-3 16,084 +/- 352 16,507 13,286 -19,929 Pass W-111417 4/29/2016 Cs-134 38.1 +/- 6.2 36.2 29.0 - 43.4 Pass W-111417 4/29/2016 Cs-137 74.0 +/- 7.5 71.9 57.5 - 86.3 Pass SPW-6121 11/16/2017 H-3 16,276 +/- 378 16,507 13,286 - 19,929 Pass SPW-6132 11/20/2017 H-3 15,897 +/-374 16,507 13,286 - 19,929 Pass SPW-6249 11/30/2017 Ra-226 12.2 +/- 0.4 12.3 9.8 - 14.8 Pass SPW-6226 12/1/2017 H-3 16,164 +/- 378 16,507 13,286 - 19,929 Pass SPW-6318 12/7/2017 H-3 15,779 +/- 372 16,507 13,286 - 19,929 Pass W-120817 4/29/2016 Cs-134 29.5 +/- 5.6 36.2 29.0 - 43.4 Pass W-120817 4/29/2016 Cs-137 78.8 +/- 9.6 71.9 57.5 - 86.3 Pass SPW-65 12/11/2017 Ra-226 12.5 +/- 0.4 12.3 9.8 - 14.8 Pass SPW-6437 12/13/2017 Gr. Alpha 19.6 +/- 0.4 20.1 10.1 - 30.2 Pass SPW-6437 12/13/2017 Gr. Beta 28.2 +/- 0.3 27.9 22.3 - 33.5 Pass SPW-6463 12/15/2017 H-3 15,560 +/- 372 16,507 13,286 - 19,929 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), Ml (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, gelatin is used for the spike matrix. For vegetation, cabbage is used for the spike matrix.

A3-4

TABLE A-4. In-House "Blank" Samples Concentration a Lab Code Sample Date Analysisb Laboratory results (4.66cr)

Acceptance Type LLD Activityc Criteria (4.66 cr)

SPW-31 Water 1/6/2017 H-3 143 71 +/- 75 200 SPW-45 Water 1/9/2017 Gr. Alpha 0.41 0.09 +/- 0.30 2

SPW-45 Water 1/9/2017 Gr. Beta 0.74

-0.56 +/- 0.50 4

SPW-91 Water 1/11/2017 H-3 151

-23 +/- 71 200 SPW-141 Water 1/12/2017 Sr-89 0.55 0.29 +/- 0.47 5

SPW-141 Water 1/12/2017 Sr-90 0.67

-0.02 +/- 0.31 1

SPW-154 Water 1/19/2017 H-3 155

-17 +/- 73 200 SPW-185 Water 1/23/2017 H-3 176 44 +/-94 200 SPW-231 Water 1/19/2017 H-3 179 26 +/-87 200 SPW-303 Water 1/26/2017 H-3 160 8 +/- 77 200 SPW-305 Water 1/4/2017 Ra-226 0.02 0.02 +/- 0.01 2

SPW-307 Water 1/27/2017 1-131 0.21 0.01 +/- 0.11 1.00 SPW-332 Water 1/30/2017 H-3 169

-52 +/- 86 200 SPW-352 Water 2/2/2017 U-234 0.14 0.00 +/- 0.08 SPW-352 Water 2/2/2017 U-238 0.14 0.12 +/- 0.15 SPW-411 Water 2/6/2017 Sr-89 0.49 0.30 +/- 0.35 5

SPW-411 Water 2/6/2017 Sr-90 0.52

-0.22 +/- 0.21 1

SPW-464 Water 2/8/2017 H-3 155 2 +/-74 200 SPW-560 Water 2/15/2017 H-3 156 38 +/-77 200 SPW-604 Water 2/16/2017 H-3 154 59 +/- 77 200 SPW-656 Water 2/17/2017 H-3 187 28 +/- 94 200 SPW-713 Water 2/23/2017 H-3 161 20 +/- 81 200 SPW-736 Water 2/28/2017 H-3 161

-75 +/- 76 200 SPAP-739 AP 2/28/2017 Gr. Beta 0.002 0.004 +/- 0.001 0.01 SPAP-741 AP 2/24/2017 Cs-134 2.27

-0.95 +/- 1.29 100 SPAP-741 AP 2/24/2017 Cs-137 2.65 0.17+/-1.67 100 SPW-747 Water 2/28/2017 C-14 161

-28 +/- 97 200 SPW-749 Water 2/28/2017 Ni-63 17

-3+/-10 200 SPF-751 Fish 2/28/2017 Cs-134 0.008 0.002 +/- 0.004 100 SPF-751 Fish 2/28/2017 Cs-137 0.008 0.000 +/- 0.005 100 SPW-780 Water 3/1/2017 Ra-226 0.02 0.02 +/- 0.01 2

SPW-782 Water 3/1/2017 H-3 154 35 +/-78 200 SPW-3506 Water 3/1/2017 Ra-226 0.03 0.02 +/- 0.02 2

SPW-836 Water 3/3/2017 1-131 0.38 0.04 +/- 0.18 1

SPW-1009 Water 3/14/2017 H-3 154

-31 +/- 72 200 SPW-1025 Water 3/16/2017 Gr. Alpha 0.43

-0.16 +/- 0.28 2

SPW-1025 Water 3/16/2017 Gr. Beta 0.75

-0.24 +/- 0.52 4

SPW-1091 Water 3/21/2017 H-3 145 60 +/-73 200 SPW-1150 Water 3/24/2017 H-3 152

-31 +/- 71 200 SPW-1162 Water 3/28/2017 Sr-89 0.61

-0.39 +/- 0.45 5

SPW-1162 Water 3/28/2017 Sr-90 0.52 0.18 +/- 0.27 a Liquid sample results are reported in pCi/Liter, air filters ( pCi!m\\ charcoal (pCi/charcoal canister). and solid samples (pCi/g).

b 1-131 (G); iodine-131 as analyzed by gamma spectroscopy.

c Activity reported is a net activity result.

A4-1

TABLE A-4. In-House "Blank" Samples Concentration a Lab Code Sample Date Analysisb Laboratory results (4.66cr)

Acceptance Type LLD Activitl Criteria (4.66 cr)

SPW-1177 Water 3/29/2017 Ra-228 0.83

-0.14 +/-0.36 2

SPW-1231 Water 3/30/2017 H-3 150 24 +/-73 200 SPW-1245 Water 3/31/2017 Cs-134 3.73 0.43 +/- 2.18 100 SPW-1245 Water 3/31/2017 Cs-137 3.01

-1.23 +/-2.12 100 SPW-1245 Water 3/31/2017 l-131(G) 5.39 0.92 +/- 2.15 100 SPW-1245 Water 3/31/2017 i-131 0.32 0.03 +/- 0.18 SPMl-1247 Milk 3/31/2017 Cs-134 3.70 1.23+/-1.96 100 SPMl-1247 Milk 3/31/2017 Cs-137 3.62

-0.84 +/- 2.15 100 SPMl-1247 Milk 3/31/2017 l-131(G) 4.42 0.39 +/- 2.14 100 SPW-1294 Water 3/31/2017 Ra-226 0.02 0.18 +/- 0.02 2

SPW-1303 Water 4/4/2017 H-3 151 8 +/-75 200 SPW-1377 Water 4/7/2017 H-3 150 29 +/-72 200 SPW-1390 Water 4/7/2017 Gr. Alpha 0.42 0.15 +/- 0.31 2

SPW-1390 Water 4/7/2017 Gr. Beta 0.73

-0.17 +/- 0.51 4

SPW-1479 Water 4/12/2017 H-3 151 89 +/- 77 200 SPW-1574 Water 4/18/2017 H-3 144 55 +/- 79 200 SPW-1625 Water 4/20/2017 Sr-89 0.59

-0.01 +/- 0.50 5

SPW-1625 Water 4/20/2017 Sr-90 0.71 0.16 +/-0.35 SPW-1657 Water 4/21/2017 H-3 147 34 +/- 73 200 SPW-1775 Water 4/26/2017 H-3 155 67 +/- 80 200 SPW-1805 Water 4/27/2017 H-3 153 15 +/- 74 200 SPW-1936 Water 5/3/2017 H-3 148 33 +/- 71 200 SPW-1970 Water 5/5/2017 Sr-89 0.66 0.34 +/- 0.54 5

SPW-1970 Water 5/5/2017 Sr-90 0.62

-0.08 +/- 0.28 1

SPW-2032 Water 5/8/2017 H-3 147 66 +/- 73 200 SPW-2419 Water 5/9/2017 Ra-226 0.03 0.01 +/- 0.03 2

SPW-2283 Water 5/22/2017 H-3 155 24 +/-78 200 SPW-2353 Water 5/23/2017 H-3 151 56 +/- 76 200 SPW-2890 Water 5/23/2017 Ra-226 0.03

-0.01 +/- 0.02 2

SPMl-2377 Milk 5/24/2017 Sr-89 0.78 0.86 +/- 0.93 5

SPMl-2377 Milk 5/24/2017 Sr-90 0.49 0.95 +/- 0.33 1

SPW-2438 Water 5/25/2017 Ra-228 0.90

-0.28 +/- 0.38 2

SPW-2467 Water 5/26/2017 H-3 152 27 +/-77 200 SPW-2417 Water 5/26/2017 Ra-228 0.80 1.58 +/- 0.54 2

SPW-2447 Water 5/26/2017 1-131 0.21

-0.05 +/- 0.12 1

SPW-2501 Water 6/1/2017 H-3 151

-23 +/- 70 200 SPW-2658 Water 6/5/2017 H-3 152 107 +/- 78 200 SPW-2789 Water 6/9/2017 H-3 150 52 +/- 77 200 SPW-2797 Water 6/12/2017 H-3 177 7 +/-93 200 SPW-2847 Water 6/14/2017 1-131 0.18 0.03 +/- 0.10 1

a Liquid sample results are reported in pCi/Liter, air filters ( pCilm\\ charcoal (pCi/charcoal canister), and solid samples (pCi/g).

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

c Activity reported is a net activity result.

A4-2

TABLE A-4. In-House "Blank" Samples Concentration a Lab Code Sample Date Analysisb Laboratory results (4.66a)

Acceptance Type LLD Activitl Criteria (4.66 a)

SPW-3508 Water 6/15/2017 Ra-226 0.03 0.00 +/- 0.02 2

SPW-2942 Water 6/19/2017 Sr-89 0.58 0.80 +/- 0.53 5

SPW-2942 Water 6/19/2017 Sr-90 0.50 0.15 +/- 0.25 1

SPW-3042 Water 6/23/2017 H-3 146 25 +/-74 200 SPW-3510 Water 6/23/2017 Ra-226 0.02 0.03 +/- 0.02 2

SPW-3102 Water 6/28/2017 H-3 148

-7 +/- 73 200 SPW-3116 Water 6/29/2017 Tc-99 5.91

-0.39 +/- 3.58 10 SPW-3512 Water 6/29/2017 Ra-226 0.02

-0.01 +/- 0.02 2

SPW-3187 Water 7/3/2017 Sr-89 0.62 0.00 +/- 0.48 5

SPW-3187 Water 7/3/2017 Sr-90 0.48 0.07 +/- 0.23 1

SPW-3282 Water 7/11/2017 H-3 178

-37 +/- 84 200 SPW-4053 Water 7/11/2017 Ra-226 0.03 0.02 +/- 0.02 2

SPW-3466 Water 7/14/2017 Gr. Alpha 0.42

-0.09 +/- 0.28 2

SPW-3466 Water 7/14/2017 Gr. Beta 0.76

-0.18 +/- 0.53 4

SPW-3448 Water 7/15/2017 H-3 150 54 +/-77 200 SPW-3727 Water 7/27/2017 Ni-63 90 18 +/- 55 200 SPW-3793 Water 7/28/2017 H-3 151 47 +/- 82 200 SPW-3904 Water 8/3/2017 Gr. Alpha 0.47

-0.02 +/- 0.33 2

SPW-3904 Water 8/3/2017 Gr. Beta 0.75

-0.11 +/- 0.52 4

SPW-4029 Water 8/9/2017 H-3 159 11 +/- 79 200 SPW-4206 Water 8/17/2017 H-3 157 55 +/- 76 200 SPW-4241 Water 8/19/2017 H-3 190 61 +/- 96 200 SPW-4085 Water 8/14/2017 H-3 159

-28 +/- 77 200 SPW-4206 Water 8/17/2017 H-3 157 55 +/-76 200 SPW-4241 Water 8/19/2017 H-3 190 61 +/- 96 200 SPW-4457 Water 9/1/2017 Ra-228 0.78

-0.02 +/- 0.36 2

SPW-4465 Water 9/6/2017 Sr-89 0.51 0.30 +/- 0.37 5

SPW-4465 Water 9/6/2017 Sr-90 0.46

-0.09 +/- 0.20 1

SPW-4585 Water 9/9/2017 H-3 187

-86 +/- 83 200 SPW-5720 Water 9/13/2017 Ra-226 0.02 0.13 +/- 0.02 2

SPW-4703 Water 9/15/2017 1-131 0.17 0.10 +/- 0.10 1

SPW-4719 Water 9/16/2017 H-3 184

-86 +/- 93 200 SPW-4833 Water 9/22/2017 H-3 150 5 +/-72 200 SPW-4934 Water 9/27/2017 H-3 148 5 +/- 70 200 SPW-4936 Water 9/27/2017 Ra-228 0.80 0.55 +/- 0.44 2

SPW-5000 Water 9/29/2017 H-3 183

-13 +/- 90 200 SPW-5133 Water 10/6/2017 H-3 144 64 +/-71 200 SPW-5273 Water 10/12/2017 H-3 142 106 +/- 72 200 a Liquid sample results are reported in pCi/Liter, air filters ( pCi/m3J, charcoal (pCi/charcoal canister), and solid samples (pCi/g).

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

0 Activity reported is a net activity result.

A4-3

TABLE A-4. In-House "Blank" Samples Concentration a Lab Code Sample Date Analysisb Laboratory results (4.66cr)

Acceptance Type LLD Activity" Criteria (4.66 cr)

SPW-5407 Water 10/18/2017 Ni-63 69 43 +/- 43 200 SPW-5429 Water 10/19/2017 H-3 148 54 +/- 72 200 SPW-5603 Water 10/23/2017 Sr-89 0.57 0.16 +/- 0.47 5

SPW-5603 Water 10/23/2017 Sr-90 0.70

-0.12 +/- 0.31 1

SPW-5673 Water 10/25/2017 H-3 156

-36 +/- 71 200 SPW-5718 Water 10/27/2017 H-3 182 45 +/-92 200 SPW-5943 Water 10/27/2017 Ra-226 0.02 0.08 +/- 0.02 2

SPW-5723 Water 10/30/2017 1-131 0.10 0.03 +/- 0.07 1

SPW-5914 Water 11/09/17 H-3 149

-39 +/- 68 200 SPW-5988 Water 11/11/2017 H-3 183

-8 +/- 88 200 SPW-6120 Water 11/16/2017 H-3 146 83 +/- 75 200 SPW-6131 Water 11/20/2017 H-3 151 16 +/- 72 200 SPW-6197 Water 11 /29/2017 1-131 0.38 0.01 +/- 0.18 1

SPW-6248 Water 11/30/2017 Ra-226 0.03 0.15 +/- 0.03 2

SPW-6225 Water 12/1/2017 H-3 154

-10 +/- 72 200 SPW-6317 Water 12/7/2017 H-3 148 44 +/- 74 200 SPW-64 Water 12/11/2017 Ra-226 0.03 0.18 +/- 0.03 2

SPW-6436 Water 12/13/2017 Gr. Alpha 0.54

-0.17 +/- 0.37 2

SPW-6436 Water 12/13/2017 Gr. Beta 0.74 0.12 +/- 0.52 4

SPW-6464 Water 12/15/2017 H-3 148 31 +/- 75 200 a Liquid sample results are reported in pCi/Liter, air filters ( pCi!m\\ charcoal (pCi/charcoal canister), and solid samples (pCi/g).

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

0 Activity reported is a net activity result.

A4-4

TABLE A-5. In-House "Duplicate" Samples Concentration a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance AP-7178,7179 1/3/2017 Be-7 0.047 +/- 0.015 0.062 +/- 0.017 0.054 +/- 0.012 Pass SW-6986,6987 1/3/2017 Gr. Beta 1.39 +/-0.41 0.77 +/-0.41 1.08 +/- 0.29 Pass E-66,67 1/3/2017 Gr. Beta 1.62 +/- 0.05 1.45 +/- 0.04 1.54 +/-0.11 Pass E-66,67 1/3/2017 K-40 1.26 +/- 0.14 1.39+/-0.16 1.32 +/- 0.11 Pass CF-87,88 1/3/2017 Be-7 0.25 +/- 0.11 0.30 +/- 0.12 0.28 +/- 0.08 Pass CF-87,88 1/3/2017 K-40 7.77 +/- 0.39 6.84 +/- 0.37 7.31 +/- 0.27 Pass AP-011217 1112/2017 Be-7 0.137 +/- 0.078 0.139 +/- 0.082 0.138 +/- 0.056 Pass Ml-212,213 1/16/2017 K-40 1,515 +/- 98 1,347+/-107 1,431 +/- 73 Pass WW-321,322 1/19/2017 H-3 675+/-118 506 +/- 133 590 +/- 89 Pass WW-674,675 1/20/2017 H-3 7,326 +/- 254 7,717 +/-259 7,522 +/- 181 Pass AP-012317 1/23/2017 Gr. Beta 0.034 +/- 0.005 0.038 +/- 0.005 0.036 +/- 0.004 Pass WW-298,299 1/24/2017 H-3 5,916 +/- 239 5764 +/- 237 5840 +/- 168 Pass AP-013117 1/30/2017 Gr. Beta 0.027 +/- 0.004 0.028 +/- 0.004 0.028 +/- 0.003 Pass WW-500,501 1/31/2017 H-3 1,058 +/- 122 1,054 +/- 121 1,056 +/- 86 Pass SW-391,392 1/31/2017 Gr. Beta 1.40 +/- 0.56 1.62 +/- 0.61 1.51 +/-0.41 Pass SPS-370,371 2/1/2017 K-40 23.47 +/- 0.66 23.11 +/-0.72 23.29 +/- 0.49 Pass AP-456,457 2/2/2017 Be-7 0.129 +/-0.076 0.167 +/- 0.092 0.148 +/- 0.060 Pass AP-020217 2/2/2017 Gr. Beta 0.021 +/- 0.004 0.027 +/- 0.004 0.024 +/- 0.003 Pass SPS-414,415 2/3/2017 K-40 19.45+/-1.85 21.58 +/- 1.99 20.52+/-1.36 Pass AP-020617 2/6/2017 Gr. Beta 0.023 +/- 0.004 0.023 +/- 0.004 0.023 +/- 0.003 Pass AP-021417A 2/14/2017 Gr. Beta 0.031 +/- 0.004 0.030 +/- 0.004 0.030 +/- 0.003 Pass SPW-543 2/14/2017 Gr. Beta 7.99 +/- 0.82 9.45 +/- 0.88 8.72 +/- 0.60 Pass AP-021417B 2/14/2017 Gr. Beta 0.024 +/- 0.004 0.028 +/- 0.004 0.026 +/- 0.003 Pass WW-718,719 2/14/2017 H-3 737 +/- 113 643 +/- 110 690 +/- 79 Pass AP-022017 2/20/2017 Gr. Beta 0.018 +/- 0.005 0.021 +/- 0.005 0.020 +/- 0.004 Pass WW-755,756 2/22/2017 H-3 3,709 +/- 196 3,823 +/- 198 3,766 +/- 139 Pass AP-022717 2/27/2017 Gr. Beta 0.021 +/- 0.004 0.019 +/- 0.004 0.020 +/- 0.003 Pass SPDW-80011,2 3/2/2017 Ra-226 7.29 +/- 0.32 6.76 +/- 0.30 7.03 +/- 0.22 Pass SPDW-80011,2 3/2/2017 Ra-228 4.68 +/- 0.82 6.29+/-1.03 5.49 +/- 0.66 Pass SPDW-80013,4 3/2/2017 Gr. Alpha 13.57 +/- 1.43 12.44 +/- 1.37 13.01 +/- 0.99 Pass WW-845,846 3/2/2017 H-3 314 +/- 93 249 +/- 90 281 +/- 65 Pass AP-030617 3/6/2017 Gr. Beta 0.022 +/- 0.004 0.019 +/- 0.004 0.020 +/- 0.003 Pass WW-1050,1051 3/8/2017 H-3 14,994 +/- 364 14,745 +/- 362 14,870 +/- 257 Pass SPS-920,921 3/9/2017 K-40 23.30 +/- 1.76 23.13+/-1.64 23.21 +/- 1.20 Pass WW-1004,1005 3/13/2017 H-3 182 +/- 80 158 +/- 79 170 +/- 56 Pass SPS-1029, 1030 3/15/2017 K-40 11.82 +/- 0.68 12.01 +/- 0.68 11.92 +/- 0.48 Pass AP-031517 3/15/2017 Gr. Beta 0.020 +/- 0.003 0.020 +/- 0.003 0.020 +/- 0.002 Pass SPDW-80037,8 3/20/2017 Gr. Alpha 4.54 +/- 0.82 5.29 +/- 0.91 4.91 +/- 0.61 Pass AP-032017 3/20/2017 Gr. Beta 0.021 +/- 0.006 0.021 +/- 0.006 0.021 +/- 0.005 Pass WW-1094, 1095 3/20/2017 H-3 1,571 +/- 137 1,595 +/- 138 1,583 +/- 175 Pass A5-1

TABLE A-5. In-House "Duplicate" Samples Concentration a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance WW-1175,1176 3/20/2017 H-3 218 +/- 84 211 +/- 84 214 +/- 59 Pass WW-1129,1130 3/21/2017 Gr. Beta 3.51 +/- 1.24 2.99+/-1.17 3.25 +/- 0.85 Pass WW-1219,1220 3/22/2017 H-3 11,467 +/- 322 11,516 +/- 323 11,492 +/- 200 Pass SPS-1152, 1153 3/27/2017 Ac-228 20.39 +/- 0.75 20.43 +/- 0.88 20.41 +/- 0.58 Pass SPS-1152,1153 3/27/2017 Pb-214 17.22 +/- 0.50 16.44 +/- 0.52 16.83 +/- 0.36 Pass SPDW-80047,8 3/28/2017 Ra-226 2.06 +/- 0.23 1.60 +/- 0.32 1.83 +/- 0.20 Pass SPDW-80047,8 3/28/2017 Ra-228 0.53 +/- 0.48 0.78 +/- 0.49 0.66 +/- 0.34 Pass SWU-1242,1243 3/28/2017 Gr. Beta 2.04 +/- 0.81 2.47 +/- 0.69 2.26 +/- 0.53 Pass SPS-1198,1199 3/29/2017 K-40 16.95+/-1.85 18.33+/-1.71 17.64+/-1.26 Pass SPDW-80050, 1 3/29/2017 Gr. Alpha 3.19 +/- 0.80 3.39 +/- 0.78 3.29 +/- 0.56 Pass SPDW-80050, 1 3/29/2017 Gr. Beta 1.58 +/- 0.60 2.08 +/- 0.63 1.83 +/- 0.44 Pass AP-1706, 1707 3/30/2017 Be-7 0.068 +/- 0.018 0.072 +/- 0.017 0.070 +/- 0.012 Pass SW-1381, 1382 4/5/2017 H-3 402 +/- 92 309 +/- 88 356 +/- 64 Pass WW-1446,1447 4/6/2017 H-3 305 +/- 89 358 +/- 91 332 +/- 64 Pass WW-1532,1533 4/10/2017 H-3 19, 124 +/- 412 18,991 +/-410 19,058 +/- 291 Pass WW-1618,1619 4/12/2017 H-3 4,187 +/- 203 4,305 +/- 205 4,246+/-144 Pass SS-1553, 1554 4/13/2017 Gr. Beta 7.16 +/- 0.99 6.09 +/- 0.91 6.63 +/- 0.67 Pass SS-1553, 1554 4/13/2017 K-40 4.60 +/- 0.32 4.84 +/- 0.34 4.72 +/- 0.23 Pass SS-1553, 1554 4/13/2017 Tl-208 0.038 +/- 0.016 0.032 +/- 0.011 0.035 +/- 0.010 Pass SS-1553,1554 4/13/2017 Pb-212 0.101 +/- 0.015 0.096 +/- 0.015 0.098 +/- 0.010 Pass SS-1553, 1554 4/13/2017 Bi-214 0.094 +/- 0.032 0.109 +/- 0.022 0.101 +/-0.019 Pass SS-1553, 1554 4/13/2017 Ac-228 0.089 +/- 0.042 0.111 +/- 0.046 0.100 +/- 0.031 Pass P-2015,2016 5/4/2017 H-3 189 +/- 80 212 +/- 81 200 +/- 57 Pass WW-2336,2337 5/8/2017 H-3 422 +/- 97 298 +/- 91 360 +/- 66 Pass AP-051117 5/11/2017 Gr. Beta 0.018 +/- 0.003 0.025 +/- 0.004 0.021 +/- 0.002 Pass WW-2497,2498 5/23/2017 H-3 1,268+/-127 1,247 +/- 126 1,257 +/- 89 Pass WW-2583,2584 5/23/2017 H-3 5,159 +/-224 5,223+/-126 5,191 +/- 129 Pass WW-2732,2733 5/23/2017 H-3 8,559 +/- 282 8,570 +/- 283 8,564 +/- 200 Pass XW-1218,1219 5/23/2017 H-3 11,467 +/- 282 11,516 +/-283 11,492 +/- 200 Pass Ml-2428,2429 5/24/2017 K-40 1,752+/-137 1,805 +/- 132 1,778 +/- 95 Pass S0-2562,2563 5/24/2017 K-40 7.87 +/- 0.50 8.64 +/- 0.49 8.25 +/- 0.35 Pass WW-3023,3024 5/24/2017 H-3 27,398 +/-486 27,733 +/- 489 27,565 +/- 344 Pass S0-2453,2454 5/25/2017 Gr. Beta 14.38 +/- 0.93 15.70 +/- 1.06 15.04 +/- 0.70 Pass S0-2453,2454 5/25/2017 Cs-137 0.17 +/- 0.03 0.18 +/- 0.03 0.17 +/- 0.02 Pass S0-2453,2454 5/25/2017 K-40 9.80 +/- 0.50 9.19 +/- 0.57 9.50 +/- 0.38 Pass S0-2453,2454 5/25/2017 Tl-208 0.09 +/- 0.02 0.10 +/- 0.03 0.09 +/- 0.02 Pass S0-2453,2454 5/25/2017 Pb-212 0.29 +/- 0.03 0.30 +/- 0.03 0.29 +/- 0.02 Pass S0-2453,2454 5/25/2017 Bi-214 0.24 +/- 0.03 0.18 +/- 0.04 0.21 +/- 0.03 Pass S0-2453,2454 5/25/2017 Ra-226 0.82 +/- 0.22 0.62 +/- 0.27 0.72 +/-0.17 Pass S0-2453,2454 5/25/2017 Ac-228 0.32 +/- 0.07 0.28 +/- 0.08 0.30 +/- 0.05 Pass A5-2

TABLE A-5. In-House "Duplicate" Samples Concentration a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance SWT-2625,2626 5/30/2017 Gr. Beta 0.64 +/- 0.53 1.08 +/- 0.55 0.86 +/- 0.38 Pass AP-053117 5/31/2017 Gr. Beta 0.013 +/- 0.003 0.011 +/- 0.003 0.012 +/- 0.002 Pass G-2646,2647 6/1/2017 Be-7 1.02 +/-0.17 1.06 +/- 0.26 1.04 +/- 0.15 Pass G-2646,2647 6/1/2017 K-40 7.51 +/- 0.49 6.55 +/- 0.51 7.03 +/- 0.36 Pass SL-2669,70 6/1/2017 Be-7 0.34 +/- 0.06 0.30 +/- 0.06 0.32 +/- 0.04 Pass SL-2669,70 6/1/2017 K-40 4.35 +/-0.14 4.39 +/- 0.15 4.37 +/- 0.10 Pass F-2711,2712 6/2/2017 K-40 2.56 +/- 0.32 2.77 +/- 0.44 2.66 +/- 0.27 Pass AP-060617 6/6/2017 Gr. Beta 0.026 +/- 0.005 0.027 +/- 0.005 0.027 +/- 0.004 Pass SW-2849,50 6/8/2017 H-3 8,178 +/- 273 8,563 +/- 279 8,371 +/- 195 Pass AP-061217 6/12/2017 Gr. Beta 0.027 +/- 0.005 0.027 +/- 0.005 0.027 +/- 0.004 Pass BS-3446,3447 6/12/2017 K-40 8.30 +/- 0.47 8.57 +/- 0.47 8.44 +/- 0.33 Pass VE-2870,2871 6/13/2017 K-40 3.65 +/- 0.25 3.90 +/- 0.26 3.77 +/- 0.18 Pass AP-2914,5 6/15/2017 Be-7 0.269 +/- 0.146 0.212 +/- 0.123 0.240 +/- 0.095 Pass AP-3067,8 6/15/2017 Be-7 0.204 +/-0.113 0.328 +/- 0.126 0.266 +/- 0.085 Pass AP-061917 6/19/2017 Gr. Beta 0.020 +/- 0.004 0.019 +/- 0.004 0.020 +/- 0.003 Pass AP-3610,1 6/26/2017 Be-7 0.107 +/- 0.015 0.116 +/- 0.021 0.111 +/- 0.013 Pass AP-062617 6/26/2017 Gr. Beta 0.017 +/- 0.004 0.021 +/- 0.004 0.019 +/- 0.003 Pass AP-3673,3674 7/3/2017 Be-7 0.087 +/- 0.008 0.078 +/- 0.008 0.083 +/- 0.006 Pass AP-3287,3288 7/6/2017 Be-7 0.207 +/- 0.112 0.244 +/- 0.096 0.226 +/- 0.074 Pass WW-3308,3309 7/7/2017 H-3 549+/-108 501 +/- 107 525 +/- 76 Pass VE-3362,3363 7/12/2017 K-40 2.32 +/- 0.17 2.40 +/-0.16 2.36 +/- 0.12 Pass VE-3589,3590 7/18/2017 K-40 5.25 +/- 0.33 4.64 +/- 0.33 4.94 +/- 0.23 Pass SG-3631,3632 7/18/2017 Pb-214 3.03 +/- 0.11 2.97 +/- 0.11 3.00 +/- 0.08 Pass SG-3631,3632 7/18/2017 Ac-228 2.47 +/- 0.22 2.56 +/- 0.23 2.52 +/-0.16 Pass WW-3846,3847 7/25/2017 H-3 505 +/- 101 446 +/- 98 475 +/- 70 Pass F-4509,4510 7/26/2017 K-40 0.85 +/- 0.25 1.00 +/- 0.25 0.93 +/- 0.18 Pass F-4509,4510 7/26/2017 Gr. Beta 1.19 +/-0.03 1.18+/-0.03 1.18 +/- 0.02 Pass G-3804,3805 7/27/2017 Be-7 3.72 +/- 0.39 3.47 +/- 0.40 3.59 +/- 0.28 Pass G-3804,3805 7/27/2017 K-40 4.21 +/- 0.52 4.46 +/- 0.52 4.34 +/- 0.33 Pass SL-3888,3889 8/1/2017 Be-7 0.77 +/- 0.04 0.73 +/- 0.07 0.75 +/- 0.04 Pass SL-3888,3889 8/1/2017 K-40 0.94 +/- 0.04 0.87 +/- 0.08 0.90 +/- 0.23 Pass WW-4158,4159 8/8/2017 H-3 321 +/- 90 270 +/- 88 295 +/- 63 Pass VE-4179,4180 8/14/2017 K-40 1.84 +/-0.18 1.90 +/- 0.21 1.87 +/-0.14 Pass AP-4289,4290 8/17/2017 Be-7 0.212 +/- 0.095 0.162 +/- 0.080 0.187 +/- 0.062 Pass F-4333,4334 8/18/2017 K-40 3.22 +/- 0.41 3.62 +/- 0.42 3.42 +/- 0.29 Pass CF-4310,4311 8/21/2017 K-40 10.94 +/- 0.74 11.48 +/-0.50 11.21 +/-0.45 Pass DW-80161,80162 8/22/2017 Ra-226 1.22 +/-0.15 1.19 +/- 0.17 1.21 +/- 0.11 Pass DW-80161,80162 8/22/2017 Ra-228 1.99 +/- 0.63 0.70 +/- 0.49 1.35 +/- 0.40 Pass VE-4398,4399 8/28/2017 Be-7 0.13 +/- 0.07 0.13 +/- 0.08 0.13 +/- 0.05 Pass A5-3

TABLE A-5. In-House "Duplicate" Samples Concentration a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance VE-4398,4399 8/28/2017 K-40 3.32 +/- 0.22 3.48 +/- 0.25 3.40 +/- 0.17 Pass SW-4463,4464 8/29/2017 H-3 495 +/- 106 491 +/-106 493 +/- 75 Pass LW-4486,4487 8/31/2017 Gr. Beta 0.425 +/- 0.471 1.358 +/- 0.571 0.892 +/- 0.370 Pass VE-4561,4562 9/6/2017 Be-7 5.89 +/- 0.29 5.76 +/- 0.25 5.83 +/- 0.19 Pass VE-4561,4562 9/6/2017 K-40 3.73 +/- 0.34 3.77 +/- 0.29 3.75 +/- 0.22 Pass B0-5122,5123 9/8/2017 K-40 4.50 +/- 0.36 4.50 +/- 0.36 4.50 +/- 0.25 Pass VE-4692,4693 9/12/2017 K-40 5.16 +/- 0.13 5.31 +/- 0.36 5.24 +/- 0.19 Pass SS-4650,4651 9/12/2017 K-40 10.55 +/- 0.51 10.41 +/- 0.54 10.48 +/- 0.37 Pass Ml-4671,4672 9/13/2017 K-40 1,347 +/- 115 1,283 +/- 118 1,315 +/-82 Pass M 1-4671,4672 9/13/2017 Sr-90 0.7 +/- 0.3 0.5 +/- 0.3 0.6 +/- 0.2 Pass VE-4973,4974 9/17/2017 K-40 1.11+/-0.15 1.17 +/-0.13 1.14 +/- 0.10 Pass F-4928,4929 9/19/2017 K-40 1.84 +/- 0.31 1.68 +/- 0.34 1.76 +/- 0.23 Pass S-4865,4866 9/20/2017 K-40 21.07 +/- 2.39 19.09 +/- 2.51 20.08+/-1.73 Pass VE-4907,4908 9/20/2017 K-40 3.83 +/- 0.44 4.28 +/- 0.31 4.05 +/- 0.27 Pass VE-4844,4845 9/21/2017 K-40 1.81 +/- 0.22 1.88 +/- 0.21 1.84 +/-0.15 Pass AP-5572,5573 9/27/2017 Be-7 0.082 +/- 0.015 0.075 +/- 0.014 0.078 +/- 0.010 Pass LW-5145,5146 9/28/2017 Gr. Beta 0.84 +/- 0.49 1.47 +/- 0.57 1.16 +/-0.38 Pass AP-092917 9/29/2017 Gr. Beta 0.038 +/- 0.004 0.031 +/- 0.004 0.035 +/- 0.003 Pass WW-5080,5081 10/2/2017 H-3 208 +/- 79 223 +/- 80 215 +/- 56 Pass AP-100217 10/2/2017 Gr. Beta 0.025 +/- 0.005 0.028 +/- 0.005 0.026 +/- 0.003 Pass AP-100317 10/3/2017 Gr. Beta 0.037 +/- 0.004 0.033 +/- 0.004 0.035 +/- 0.003 Pass S-5165,5166 10/4/2017 K-40 15.93 +/- 2.30 20.34 +/-3.15 18.14 +/- 1.95 Pass VE-5228,5229 10/5/2017 K-40 3.25 +/- 0.25 2.82 +/- 0.24 3.04 +/- 0.17 Pass AP-100917 10/9/2017 Gr. Beta 0.021 +/- 0.004 0.025 +/- 0.004 0.023 +/- 0.003 Pass VE-5293,5294 10/10/2017 K-40 3.89 +/- 0.30 4.08 +/- 0.34 3.99 +/- 0.22 Pass DW-80184,80185 10/11/2017 Gr. Alpha 2.17 +/- 0.81 2.50 +/- 0.81 2.34 +/- 0.57 Pass DW-80184,80185 10/11/2017 Gr. Beta 9.45 +/- 0.79 10.20 +/- 0.83 9.83 +/- 0.57 Pass S-5421,5422 10/12/2017 K-40 8.82 +/- 1.94 7.97 +/- 0.72 8.40 +/- 1.03 Pass AP-101617 10/16/2017 Gr. Beta 0.025 +/- 0.005 0.022 +/- 0.004 0.024 +/- 0.003 Pass F-5658,5659 10/19/2017 K-40 2.44 +/- 0.41 2.57 +/- 0.39 2.51 +/- 0.28 Pass S0-5704,5705 10/25/2017 Cs-137 0.05 +/- 0.02 0.04 +/- 0.02 0.04 +/- 0.01 Pass S0-5704,5705 10/25/2017 K-40 10.08 +/- 0.51 9.57 +/- 0.56 9.83 +/- 0.38 Pass S0-5704,5705 10/25/2017 Tl-208 0.10 +/- 0.02 0.09 +/- 0.02 0.10 +/- 0.01 Pass S0-5704,5705 10/25/2017 Bi-214 0.34 +/- 0.04 0.27 +/- 0.04 0.30 +/- 0.03 Pass S0-5704,5705 10/25/2017 Pb-212 0.28 +/- 0.03 0.27 +/- 0.03 0.27 +/- 0.02 Pass S0-5704,5705 10/25/2017 Ra-226 1.15+/-0.52 0.59 +/- 0.22 0.87 +/- 0.28 Pass S0-5704,5705 10/25/2017 Ac-228 0.33 +/- 0.05 0.31 +/- 0.07 0.32 +/- 0.04 Pass S0-5704,5705 10/25/2017 Gr. Beta 18.34+/-1.80 16.50+/-1.03 17.42+/-1.04 Pass AP-5732,5733 10/26/2017 Be-7 0.139 +/- 0.064 0.175 +/- 0.075 0.157 +/- 0.049 Pass A5-4

TABLE A-5. In-House "Duplicate" Samples Concentration a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance SW-5753,5754 10/31/2017 H-3 220 +/- 83 279 +/- 86 249 +/- 60 Pass SWU-5816,5817 10/31/2017 Gr. Beta 1.51 +/- 1.00 2.02 +/- 1.02 1.76 +/- 0.71 Pass AP-103117 10/31/2017 Gr. Beta 0.015 +/- 0.004 0.014 +/- 0.004 0.015 +/- 0.003 Pass S0-5923,5924 11/1/2017 Cs-137 0.30 +/- 0.04 0.31 +/- 0.04 0.31 +/- 0.03 Pass S0-5923,5924 11/1/2017 K-40 10.52 +/- 0.61 10.56 +/- 0.67 10.54 +/- 0.45 Pass AP-5858,5859 11/2/2017 Be-7 0.145 +/- 0.075 0.146 +/- 0.084 0.145 +/- 0.056 Pass AP-110717 11/7/2017 Be-7 0.026 +/- 0.004 0.030 +/- 0.004 0.028 +/- 0.003 Pass WW-6032,6033 11/7/2017 H-3 204 +/- 86 298 +/- 80 251 +/- 59 Pass WW-6074,6075 11/8/2017 H-3 72,247 +/- 786 73,062 +/- 791 72,655 +/- 558 Pass BS-6053,6054 11/13/2017 K-40 7.99 +/- 0.62 9.20 +/- 0.68 8.60 +/- 0.46 Pass BS-6053,6054 11/13/2017 Cs-137 0.07 +/- 0.03 0.08 +/- 0.03 0.07 +/- 0.02 Pass DW-80211,80212 11/14/2017 Gr. Alpha 2.30 +/- 0.80 3.60 +/- 1.00 2.95 +/- 0.64 Pass DW-80211,80212 11/14/2017 Gr. Beta 9.32 +/- 0.81 8.99 +/- 0.81 9.16 +/- 0.57 Pass DW-80214,80215 11/14/2017 Ra-226 1.36 +/- 0.22 1.35 +/-0.15 1.355 +/- 0.13 Pass DW-80214,80215 11/14/2017 Ra-228 1.41 +/- 0.51 0.90 +/- 0.45 1.16+/-0.34 Pass WW-6152,6153 11/15/2017 H-3 416 +/- 94 328 +/- 90 372 +/- 65 Pass SWU-6219,6220 11/28/2017 Gr. Beta 1.04 +/- 0.54 1.75 +/- 0.58 1.39 +/- 0.39 Pass SS-6242,6243 11/29/2017 K-40 24.17+/-1.05 22.31 +/- 1.03 23.24 +/- 0.74 Pass SS-6242,6243 11/29/2017 Cs-137 0.11 +/- 0.03 0.08 +/- 0.03 0.10 +/- 0.02 Pass SG-6938,6939 11/28/2017 Pb-214 15.28 +/- 0.34 14.96 +/- 0.43 15.12 +/- 0.27 Pass SG-6938,6939 11/28/2017 Ac-228 18.99 +/- 0.59 19.92 +/- 0.79 19.46 +/- 0.49 Pass AP-112817 11/28/2017 Gr. Beta 0.026 +/- 0.004 0.030 +/- 0.004 0.028 +/- 0.003 Pass SQ-6286,6287 12/1/2017 Gr. Alpha 70.6 +/- 6.2 60.9 +/- 6.0 65.8 +/- 4.3 Pass SQ-6286,6287 12/1/2017 Gr. Beta 48.9 +/- 2.7 53.7 +/- 2.8 51.3+/-1.9 Pass SQ-6286,6287 12/1/2017 Ra-226 11.3 +/-0.4 10.7 +/- 0.5 11.0 +/- 0.3 Pass SQ-6286,6287 12/1/2017 Ra-228 13.5 +/- 0.9 13.2 +/- 1.0 13.4 +/- 0.7 Pass SG-6286,6287 12/1/2017 K-40 5.10+/-1.82 6.65 +/- 1.53 5.88+/-1.19 Pass AP-120417 12/4/2017 Gr. Beta 0.037 +/- 0.006 0.035 +/- 0.005 0.036 +/- 0.004 Pass WW-6548,6549 12/19/2017 H-3 8,428 +/- 280 8,604 +/- 282 8,516 +/- 199 Pass AP-122717 12/27/2017 Gr. Beta 0.047 +/- 0.004 0.043 +/- 0.004 0.045 +/- 0.003 Pass XAP-6762,6763 12/31/2017 Co-60 2.43 +/- 1.30 2.24 +/- 0.82 2.34 +/- 0.77 Pass XAP-6762,6763 12/31/2017 Cs-137 4.21 +/-1.11 4.05 +/- 0.96 4.14 +/- 0.73 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 and sediment (pCi/g).

A5-5

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

Concentration a Reference Known Control Lab Code b Date Analysis Laboratory result Activity Limits c Acceptance MAS0-903 2/1/2017 Am-241 60.9 +/- 6.9 67.0 46.9-87.1 Pass MAS0-903 2/1/2017 Cs-134 1360 +/- 14 1550 1085 - 2015 Pass MAS0-903 2/1/2017 Cs-137 678 +/- 13 611 428 - 794 Pass MAS0-903 2/1/2017 Co-57 1.63+/-1.69 0.00 NA c Pass MAS0-903 2/1/2017 Co-60 909 +/- 12 891 624 -1158 Pass MAS0-903 2/1/2017 Mn-54 1052 +/- 17 967 677 - 1257 Pass MAS0-903 2/1/2017 K-40 657 +/- 68 607 425 - 789 Pass MAS0-903 2/1/2017 Zn-65

-0.52 +/- 7.40 0.00 NA c Pass MAS0-903 2/1/2017 Ni-63 3.25 +/- 7.17 0.00 NA c Pass MAS0-903 2/1/2017 Pu-238 0.46 +/- 0.69 0.41 NA e Pass MAS0-903 2/1/2017 Pu-239/240 56.8 +/- 5.9 59.8 41.9 - 77.7 Pass MAS0-903 2/1/2017 Sr-90 501 +/- 17 624 437 - 811 Pass MAS0-903 2/1/2017 Tc-99 748 +/- 16 656 459 - 853 Pass MAW-849 2/1/2017 1-129

-0.05 +/- 0.12 0.00 NA c Pass MAVE-905 2/1/2017 Cs-134 6.61 +/- 0.16 6.95 4.87 - 9.04 Pass MAVE-905 2/1/2017 Cs-137 4.97 +/- 0.18 4.60 3.22 - 5.98 Pass MAVE-905 2/1/2017 Co-57

-0.01 +/- 0.03 0.00 NA c Pass MAVE-905 2/1/2017 Co-60 9.51 +/- 0.17 8.75 6.13 - 11.38 Pass MAVE-905 2/1/2017 Mn-54 3.67 +/- 0.17 3.28 2.30 -4.26 Pass MAVE-905 2/1/2017 Zn-65 6.12 +/- 0.44 5.39 3.77 - 7.01 Pass MAW-847 2/1/2017 Am-241 0.679 +/- 0.079 0.846 0.592 - 1.100 Pass MAW-847 2/1/2017 Cs-134 0.03 +/- 0.10 0.00 NA c Pass MAW-847 2/1/2017 Cs-137 12.7 +/-0.4 11.1 7.8-14.4 Pass MAW-847d 2/1/2017 Co-57 2.7 +/- 0.3 28.5 20.0 - 37.1 Fail MAW-847 2/1/2017 Co-60 13.5 +/- 0.3 12.3 8.6 - 16.0 Pass MAW-847 2/1/2017 Mn-54 16.5 +/- 0.4 14.9 10.4 - 19.4 Pass MAW-847 2/1/2017 K-40 287 +/-6 254 178 - 330 Pass MAW-847 2/1/2017 Zn-65

-0.15 +/- 0.23 0.00 NA c Pass MAW-847 2/1/2017 H-3 275+/-10 249 174 - 324 Pass MAW-847 2/1/2017 Fe-55 2.4 +/- 13.6 1.7 NA 0

Pass MAW-847 2/1/2017 Ni-63 10.1 +/- 2.8 12.2 8.5 - 15.9 Pass MAW-847 2/1/2017 Pu-238 0.729 +/- 0.097 0.703 0.492 - 0.914 Pass MAW-847 2/1/2017 Pu-239/240 0.866 +/- 0.102 0.934 0.654 - 1.214 Pass MAW-847 2/1/2017 Ra-226 0.506 +/- 0.053 0.504 0.353 - 0.655 Pass MAW-847 2/1/2017 Sr-90 10.0 +/- 0.8 10.1 7.1 - 13.1 Pass A6-1

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

Concentration a Reference Known Control Lab Code b Date Analysis Laboratory result Activity Limits c Acceptance MAW-847 2/1/2017 Tc-99 4.77 +/- 0.62 6.25 4.38 - 8.13 Pass MAW-847 2/1/2017 U-234/233 1.19 +/- 0.10 1.16 0.81 - 1.51 Pass MAW-847 2/1/2017 U-238 1.15 +/-0.10 1.20 0.84 - 1.56 Pass MAAP-907' 2/1/2017 Am-241 0.0540 +/- 0.0140 0.0376 0.0263 - 0.0489 Fail MAAP-907 2/1/2017 Cs-134 1.31 +/- 0.06 1.42 0.99 - 1.85 Pass MAAP-907 2/1/2017 Cs-137

0. 797 +/- 0.080 0.685 0.480 - 0.891 Pass MAAP-907 2/1/2017 Co-57 1.86 +/- 0.06 1.70 1.19 - 2.21 Pass MAAP-907 2/1/2017 Co-60 0.86 +/- 0.05 0.78 0.55 - 1.01 Pass MAAP-907 2/1/2017 Mn-54 0.01 +/- 0.03 0.00 NA c Pass MAAP-907 2/1/2017 Zn-65 1.62 +/- 0.13 1.29 0.90 - 1.68 Pass MAAP-907 2/1/2017 Pu-238 0.0530 +/- 0.0190 0.0598 0.0419 - 0.0777 Pass MAAP-907 2/1/2017 Pu-239/240 0.0490 +/- 0.0160 0.0460 0.0322 - 0.0598 Pass MAAP-907 2/1/2017 Sr-90 0.648 +/- 0.120 0.651 0.456 - 0.846 Pass MAAP-907 2/1/2017 U-234/233 0.086 +/- 0.024 0.104 0.073 - 0.135 Pass MAAP-907 2/1/2017 U-238 0.097 +/- 0.024 0.107 0.075 - 0.139 Pass MAS0-4515 8/1/2017 Am-241 45.9 +/- 7.0 58.8 41.2 - 76.4 Pass9 MAS0-4515 8/1/2017 Cs-134 409 +/- 7 448 314 - 582 Pass9 MAS0-4515 8/1/2017 Cs-137 798 +/- 12 722 505 - 939 Pass9 MAS0-4515 8/1/2017 Co-57 1572 +/- 10 1458 1021 - 1895 Pass9 MAS0-4515 8/1/2017 Co-60 0.2+/-1.4 0.00 NA c Pass9 MAS0-4515 8/1/2017 Mn-54 934 +/- 13 825 578 - 1073 Pass9 MAS0-4515 8/1/2017 K-40 704 +/- 53 592 414 - 770 Pass9 MAS0-4515 8/1/2017 Zn-65 667 +/- 17 559 391 - 727 Pass9 MAS0-4515 8/1/2017 Pu-238 101 +/- 9 92 64 - 120 Pass9 MAS0-4515 8/1/2017 Pu-239/240 74.8 +/- 7.7 68.8 48.2 - 89.4 Pass9 MAS0-4515 8/1/2017 Sr-90 252 +/- 7 289 202 - 376 Pass9 MAW-4494 8/1/2017 1-129 2.31 +/- 0.10 2.31 1.62 - 3.00 Pass MAVE-4517 8/1/2017 Cs-134 2.40 +/- 0.10 2.32 1.62 - 3.02 Pass MAVE-4517 8/1/2017 Cs-137

-0.002 +/- 0.048 0.000 NA c Pass MAVE-4517 8/1/2017 Co-57 3.3 +/- 0.1 2.8 2.0 - 3.6 Pass MAVE-4517 8/1/2017 Co-60 2.10+/-0.10 2.07 1.45 - 2.69 Pass MAVE-4517 8/1/2017 Mn-54 3.00 +/- 0.20 2.62 1.83-3.41 Pass MAVE-4517 8/1/2017 Zn-65 5.90 +/- 0.30 5.37 3.76 - 6.98 Pass A6-2

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

Concentration a Reference Known Control Lab Code b Date Analysis Laboratory result Activity Limits c Acceptance MAW-4513 8/1/2017 Am-241 0.820 +/- 0.220 0.892 0.624 -1.160 Pass MAW-4513 8/1/2017 Cs-134 10.3 +/- 0.3 11.5 8.1 -15.0 Pass MAW-4513 8/1/2017 Cs-137 17.2 +/- 0.5 16.3 11.4 - 21.2 Pass MAW-4513 8/1/2017 Co-57 12.7 +/-0.4 12.1 8.5 - 15.7 Pass MAW-4513 8/1/2017 Co-60 10.6 +/- 0.3 10.7 7.5 - 13.9 Pass MAW-4513 8/1/2017 Mn-54 15.6 +/- 0.4 14.9 10.4 -19.4 Pass MAW-4513 8/1/2017 Zn-65 15.9 +/- 0.7 15.5 10.9 - 20.2 Pass MAW-4513 8/1/2017 H-3 255 +/-9 258 181 - 335 Pass MAW-4513 8/1/2017 Fe-55 21.6 +/- 6.6 19.4 13.6 - 25.2 Pass MAW-4513 8/1/2017 Ni-63

-0.1 +/- 2.0 0.0 NA c Pass MAW-4513 8/1/2017 Pu-238 0.590 +/- 0.080 0.603 0.422 - 0.784 Pass MAW-4513 8/1/2017 Pu-239/240 0.740 +/- 0.090 0.781 0.547 - 1.015 Pass MAW-4513 8/1/2017 Ra-226 1.000 +/-0.100 0.858 0.601 -1.115 Pass MAW-4513 8/1/2017 Sr-90 7.80 +/- 0.60 7.77 5.44 - 10.10 Pass MAW-4513 8/1/2017 Tc-99 6.70 +/- 0.40 6.73 4.71 - 8.75 Pass MAW-4513 8/1/2017 U-2344/233 0.94 +/- 0.06 1.01 0.71 - 1.31 Pass MAW-4513 8/1/2017 U-238 0.97 +/- 0.07 1.04 0.73 - 1.35 Pass MAAP-4519h 8/1/2017 Am-241 0.0400 +/- 0.0100 0.0612 0.0428 - 0.0796 Fail MAAP-4519 8/1/2017 Cs-134 0.90 +/- 0.10 1.00 0.70 - 1.30 Pass MAAP-4519 8/1/2017 Cs-137 0.90 +/- 0.10 0.82 0.57 - 1.07 Pass MAAP-4519 8/1/2017 Co-57 0.01 +/- 0.01 0.00 NA c Pass MAAP-4519 8/1/2017 Co-60 0.70 +/-0.10 0.68 0.48 - 0.88 Pass MAAP-4519 8/1/2017 Mn-54 1.50 +/-0.10 1.30 0.91 - 1.69 Pass MAAP-4519 8/1/2017 Zn-65 1.30 +/-0.10 1.08 0.76 - 1.40 Pass MAAP-4519 8/1/2017 Pu-238 0.0300 +/- 0.0100 0.0298 0.0209 - 0.0387 Pass MAAP-4519 8/1/2017 Pu-239/240 0.0400 +/- 0.0200 0.0468 0.0328 - 0.0608 Pass MAAP-4519 8/1/2017 Sr-90 0.800 +/- 0.100 0.801 0.561 - 1.041 Pass MAAP-4519 8/1/2017 U-234/233 0.070 +/- 0.010 0.084 0.059 - 0.109 Pass MAAP-4519 8/1/2017 U-238 0.090 +/- 0.010 0.087 0.061 - 0.113 Pass

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

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

0 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.

ct Decimal point was misplaced while performing a unit conversion. The result is within control limits when the proper unit conversion is performed.

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

r Sample was reanalyzed in duplicate with acceptable results. Original plating was inferior to platings obtained during reanalysis.

It is believed that isotopic tracer was not accurately quantified due to poor resolution of its peak.

9 Data were erroneously submitted in units of Bq/g. All results pass MAPEP criteria when evaluated in units of Bq/Kg.

h Laboratory is not currently offering analysis for Am-241 in Air Particulate samples.

A6-3

TABLE A-7. lnterlaboratory Comparison Crosscheck Program, Environmental Resource Associates (ERA) 8 MRAD Study Concentration a Lab Code b Date Analysis Laboratory ERA Control Result Result Limits c Acceptance ERAP-1112 3/20/2017 Am-241 55.3 +/- 2.8 76.4 47.1 -103.0 Pass ERAP-1112 3/20/2017 Co-60 1,230 +/- 8 1030 797 - 1290 Pass ERAP-1112 3/20/2017 Cs-134 1,110 +/- 9 1100 700 -1360 Pass ERAP-1112 3/20/2017 Cs-137 1,810 +/- 12 1,390 1,040 - 1,830 Pass ERAP-1112 d 3/20/2017 Fe-55 590 +/- 385 256 79.4 - 500 Fail ERAP-1112 3/20/2017 Mn-54

< 5.14

< 50.0 0.00 - 50.0 Pass ERAP-1112 3/20/2017 Pu-238 54.6 +/- 2.8 54.3 37.2 - 71.4 Pass ERAP-1112 3/20/2017 Pu-239/240 63.6 +/- 3.0 62.0 44.9 - 81.0 Pass ERAP-1112 3/20/2017 Sr-90 55.3 +/- 8.3 52.4 25.6 - 78.5 Pass ERAP-1112 3/20/2017 U-233/234 65.7 +/- 3.0 73.1 45.3 -110 Pass ERAP-1112 3/20/2017 U-238 67.3 +/- 3.0 72.4 46.8 - 100 Pass ERAP-1112 3/20/2017 Zn-65 1,355 +/- 16 984 705 - 1,360 Pass ERAP-1114 3/20/2017 Gr. Alpha 106 +/- 5 85.5 28.6-133 Pass ERAP-1114 e 3/20/2017 Gr. Beta 67.6 +/- 3.0 45.2 28.6 - 65.9 Fail ERS0-1116 3/20/2017 Am-241 418 +/- 98 448 262 - 582 Pass ERS0-1116 3/20/2017 Ac-228 1,540 +/- 260 1,240 795 - 1,720 Pass ERS0-1116 3/20/2017 Bi-212 1,550 +/- 90 1,240 330 - 1,820 Pass ERS0-1116 3/20/2017 Bi-214 2,560 +/- 20 2,750 1,660 - 3,960 Pass ERS0-1116 3/20/2017 Co-60 4,620 +/- 100 4,430 3,000 - 6,100 Pass ERS0-1116 3/20/2017 Cs-134 8,340 +/- 100 8,860 5,790 -10,600 Pass ERS0-1116 3/20/2017 Cs-137 8,420 +/- 100 7,500 5,750 - 9,650 Pass ERS0-1116 3/20/2017 K-40 13,600 +/- 900 10,600 7,740 - 14,200 Pass ERS0-1116 3/20/2017 Mn-54

< 68.1

< 1000 0.00 - 1,000 Pass ERS0-1116 3/20/2017 Pb-212 1,060 +/- 70 1,240 812 - 1,730 Pass ERS0-1116 3/20/2017 Pb-214 2,620 +/- 160 2,890 1,690 - 4,310 Pass ERS0-1116 3/20/2017 Pu-238 424 +/- 154 648 390 - 894 Pass ERS0-1116 f 3/20/2017 Pu-239/240 252 +/- 112 484 316 - 669 Fail ERS0-1116 9 3/20/2017 Pu-239/240 436 +/- 106 484 316 - 669 Pass ERS0-1116 3/20/2017 Sr-90 7,930 +/- 250 9,150 3,490 - 14,500 Pass ERS0-1116 3/20/2017 Th-234 1,820 +/- 200 1,940 614 - 3,650 Pass ERS0-1116h 3/20/2017 U-233/234 1,030 +/- 130 1,950 1, 190 - 2,500 Fail ERS0-1116 i 3/20/2017 U-233/234 1,820 +/- 200 1,950 1, 190 - 2,500 Pass ERS0-1116 3/20/2017 U-238 1,240 +/- 140 1,940 1,200 - 2,460 Pass ERS0-1116 i 3/20/2017 U-238 1,930 +/- 200 1,940 1,200 - 2,460 Pass ERS0-1116 3/20/2017 Zn-65 7,190 +/- 240 6,090 4,850 - 8,090 Pass ERW-1122 3/20/2017 Gr. Alpha 65.3 +/- 2.4 89.5 31.8 - 139 Pass ERW-1122 3/20/2017 Gr. Beta 54.8+/-1.5 61.0 34.9 - 90.4 Pass ERW-1124 3/20/2017 H-3 19,000 +/-410 19,400 13,000 - 27,700 Pass A7-1

TABLE A-7. lnterlaboratory Comparison Crosscheck Program, Environmental Resource Associates (ERA) 0 MRAD Study Concentration a Lab Code b Date Analysis Laboratory ERA Control Result Result Limits c Acceptance ERVE-1118 3/20/2017 Am-241 1,560 +/- 140 1,860 1,140 -2,470 Pass ERVE-1118 3/20/2017 Cm-244 530 +/- 80 734 360 - 1,140 Pass ERVE-1118 3/20/2017 Co-60 1,400 +/- 350 1,390 959 - 1,940 Pass ERVE-1118 3/20/2017 Cs-134 1,650 +/- 460 1,830 1, 180 - 2,380 Pass ERVE-1118 3/20/2017 Cs-137 2,580 +/- 540 2,500 1,810 - 3,480 Pass ERVE-1118 3/20/2017 K-40 32, 100 +/- 700 30,900 22,300 - 43,400 Pass ERVE-1118 3/20/2017 Mn-54

< 27.3

< 300 0.00 - 300 Pass ERVE-1118 3/20/2017 Zn-65 889 +/- 64 853 615 -1,200 Pass ERVE-1118 3/20/2017 Pu-238 3,250 +/- 210 3,250 1,940 - 4,450 Pass ERVE-1118 3/20/2017 Pu-239/240 2,180+/-170 2,150 1,320 - 2,960 Pass ERVE-1118 3/20/2017 Sr-90 665 +/- 135 726 414 - 963 Pass ERVE-1118 3/20/2017 U-233/234 2,840 +/- 200 3,090 2,030 - 3,970 Pass ERVE-1118 3/20/2017 U-238 2,990 +/- 200 3,060 2,040 - 3,890 Pass ERW-1120 3/20/2017 Am-241 108 +/- 7 140 94.3 -188 Pass ERW-1120 3/20/2017 Co-60 2,600 +/- 198 2,540 2,210 - 2,970 Pass ERW-1120 3/20/2017 Cs-134 2,380 +/- 250 2,510 1,840 - 2880 Pass ERW-1120 3/20/2017 Cs-137 1,470 +/- 243 1,400 1'190 - 1,680 Pass ERW-1120 3/20/2017 Mn-54

< 12.3

< 100 0.00 -100 Pass ERW-1120 3/20/2017 Pu-238 117 +/- 4 128 94.7 -159 Pass ERW-1120 3/20/2017 Pu-239/240 74.8 +/- 3.3 85.8 66.6 - 108 Pass ERW-1120 3/20/2017 U-233/234 75.3 +/- 3.2 90.3 67.8 -116 Pass ERW-1120 3/20/2017 U-238 76.4 +/- 3.2 89.5 68.2 -110 Pass ERW-1120 3/20/2017 Zn-65 2,130 +/- 378 1,960 1630 - 2,470 Pass ERW-1120 i 3/20/2017 Fe-55 1,400 +/- 403 984 587 - 1,340 Fail ERW-1120k 3/20/2017 Fe-55 1,081 +/- 383 984 587 - 1,340 Pass ERW-1120 3/20/2017 Sr-90 652 +/- 12 714 465 - 944 Pass

Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the crosscheck proi:iram 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 (vei:ietation). Results are reported in units of pCi/L, except for air filters (pCi/Filter), vegetation and soil (pCi/kg).

0 Results are presented as the known values, expected laboratory precision (2 sii:ima, 1 determination) and control limits as provided by ERA.

d Fe-55 analysis result was outside the acceptable rani:ie. Recountini:i the sample disk for 1000 minutes resulted in 254 +/- 364 with an LLD calculation of < 342. Insufficient sample was available after performing other required analyses on the sample to quantify the activity with an uncertainty less than the activity.

0 ERA appears to have applied the standard material to the filter in a pattern closer to the center of the filter compared to previous studies and different from the filter efficiency utilized by the laboratory. This likely caused the efficency used the calculation to be understated and the result obtained by the laboratory to be overstated. For comparison the in-house spike for gross beta in AP (table A-3 SPAP-740 2/28/17) was acceptable with a ratio of 0.94 of Jab result to known.

r Analysis result for Plutonium-239/240 was below the lower limit of acceptance.

9 Samples were reanalyzed in duplicate with acceptable results for each. Orii:iinal analysis had poor resolution possibly due to a poor elctroplating and is suspected in contributing to poor results.

h Analysis result for U-233/234 was below the lower limit of acceptance.

1 The reanalysis result for U-233/234 was within the acceptance limits and U-238 reanalysis result was closer to the known value.

Original analysis had poor resolution possibly due to a poor electroplating and is suspected in contributing to poor results.

1 Fe-55 analysis result was outside acceptable range.

k Result of recountini:i was acceptable. Usini:i available aliquot after dividini:i sample for other analyses leaves insufficient sample to reliably determine the activity present in sample.

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 = 2a 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 4.66cr 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; x1 +/- s1 and x2 +/- s2 Reported result:

x +/- s; where x = (1/2) (x1 + x2) ands= (1/2) J s~ + si 3.2.

Individual results:

< L1, < L2 Reported result: < L, where L = lower of L1 and L2 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 exaf12ple, an annual standard deviation would not be the average of quarterly standard deviations. The average x and standard deviation "s" of a set of n numbers x1, x2... x0 are defined as follows:

~;: (x- ~)2 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.

8-1

APPENDIX C Table C-1.

Maximum permissible concentrations of radioactivity in air and water above natural a

background in unrestricted areas.

3 Air (pCi/m )

Water (pCi/L)

-3 Gross alpha 1x10 Strontium-89 8,000 Gross beta 1

Strontium-90 500 b

-1 lodine-131 2.8 x 10 Cesium-137 1,000 Barium-140 8,000 lodine-131 1,000 c

Potassium-40 4,000 Gross alpha 2

Gross beta 10 6

Tritium 1x10 a

b Taken from Table 2 of Appendix B to Code of Federal Regulations Title 10, Part 20, and appropriate footnotes.

Concentrations may be averaged over a period not greater than one year.

c Value adjusted by a factor of 700 to reduce the dose resulting from the air-grass-cow-milk-child pathway.

A natural radionuclide.

C-1

APPENDIX D

SUMMARY

OF THE LAND USE CENSUS AND REMP-GWPP DATA D-1

Appendix D Summary of the 2017 Land Use Census and REMP-GWPP Data The Duane Arnold Energy Center Land Use Census was completed during August-November 2017. All residences, milk animals, cattle, and gardens greater than 500 square feet were identified within three miles for each of the 16 meteorological sectors.

If none were identified within three mile range, additional surveys were performed out to a distance of five miles. The 16 meteorological sectors were identified using Google Earth and digital compass rose overlay for accuracy and precision.

The 2017 Land Use Census identified 121 gardens, which is 23 fewer gardens than in 2016 and 62 fewer gardens than in 2015. A large private garden was identified in the SSW sector and the farmer provided vegetation samples in 2017. This farm location is included as location, D-108, in ODAM, Table 5-1. Gardens were identified using Google Earth, field observation, and interviewing local residents. Five meteorological sectors had garden changes.

There are two new residences added to the 2017 Land Use Survey. A large housing development was observed in SE sector to the west of Feather Ridge Road and within 3-miles of the facility. There is the potential for 20 or more single family homes in 2018-2019.

In addition, the Pleasant Creek State Recreation Area has a large transient population of 50-300 people camping in RV's and tents from April to October. 2016 D/Q data analysis indicates an air sampler should be installed near this area in 2017-18.

Following lengthy discussions and site investigations, an air sampler could not be installed in the NW sector on State property. Therefore, an alternate location in the NW sector on Palo Marsh Road was selected with a proposed air sampler install in 2018.

D-2

There are four nearest livestock changes attributed to field observation verification.

Farms in the W, SW (2-farms), and SE sectors were observed to have goats.

Solicitation letters were issued on November 11, 2017. If a farmer provides goat milk, the farm will be included as a sample location in the ODAM, Table 5-1.The Iowa Department of Agriculture and Land Stewardship provided a list of permitted commercial dairy farms located with Benton and Linn Counties. Large commercial dairies were included in the survey, but none were located within five miles of the DAEC facility. DAEC continues to collect milk samples from two permitted dairy farms located in WSW and SW sectors. In addition, a farm in the ENE sector, D-76 ODAM table 5-1, provided occasional goat milk samples.

The Cedar River was surveyed by State of Iowa Hygienic Laboratory boat crew on September 21, 2017 for water use downstream of the DAEC to Cedar Rapids. This survey identified no new usages of river water when compared to previous surveys.

Recreational fishing is the only identified food pathway use of Cedar River water between the DAEC and the City of Cedar Rapids eight miles down-river. The State of Iowa Hygienic Laboratory performed fish sampling on June 15, 2017 and August 18, 2017. Fish filets from Northern Pike, Smallmouth Bass, Largemouth Bass, and Channel Catfish were processed for off-site laboratory analysis and results indicate no impact to human consumable fish.

In addition to the Cedar River water use survey and fish sampling, the State of Iowa Hygienic Laboratory performed a terrestrial assessment on September 8, 2017. The assessment determined no salt damage to foliage. The State of Iowa Hygienic Laboratory performed Cedar River benthic insect sampling from September 9-0ctober 9, 2017.

No anomalies identified.

Soil sampling in August 2017 and river sediment sampling in November 2017 identified Cesium-137 (Cs-137). The river bed sediment sample with positive Cs-137 was collected at D-49, upstream of DAEC operations. The source of the Cs-137 was not from plant activities.

In cooperation with State of Iowa Public Health Department and State of Iowa Hygienic Laboratory, additional samples, on-site and off-site, were collected in December 2017.

The source of Cs-137 in soil was determined to not be from DAEC operations. A review of scientific literature identified a Center of Disease Control (CDC) report documenting D-3

fallout deposition from nuclear weapons testing at the Nevada Test Site and from other countries that performed atmospheric nuclear weapons testing in the 1950s-1960s as a probable source for global contamination: http://www.cdc.gov/nceh/radiation/.

Six precipitation collection stations on-site identified tritium in monthly samples. The probable source of tritium is atmospheric recapture from tritiated water vapor releases as documented in the DAEC Annual Radiological Material Release Report. The concentrations range from less than detectable, less than (<)144 pCi/L, to 4,435 pCi/L at sample location D-127.

Biweekly DAEC sewage plant effluent sampling and analysis did not identify any plant by-products. The results can be found in the Duane Arnold Energy Center 2017 Annual Radiological Material Release Report.

Vegetation samples from various locations within the owner controlled area, at the site boundary, and within the surrounding community including private gardens did not identify any DAEC plant by-products.

Periodic inspection and sampling from buried electrical vaults on occasion identified tritiated water seepage and pooling in the vault. The source of the tritium is from precipitation recapture and subsequent surface water runoff into the vault. No other isotopes other than tritium have been identified in an electrical vault.

Benton County Public Health Department and Linn County Public Health Department provided ground water well permit data. In 2017, two new drinking wells were installed within three miles of the facility, but these wells are not within the shallow aquifer that is contaminated by tritium and the new wells are up gradient of the facility. DAEC sampling changes in 2017 included additional drinking water sampling at DAEC liquid effluent release point in the Cedar River and at the City of Cedar Rapids municipal drinking water facility, ODAM, Table 5-1, D-53 and D-54.

As a result of the 2017 Land Use Census, adjustments were made to the Meteorological Information and Dose Assessment System (MIDAS-NU) projection software model for changes in receptor distances. No significant annual dose corrections were necessary. The 2017 annual radiation dose assessment can be found in Appendix E.

In accordance with the DAEC's Environmental Sampling Procedure ESP 4.4, "Land Use Census", no changes in land use were identified that would adversely affect the safe operation of the DAEC, or that would warrant an update of the DAEC Updated Final Safety Analysis Report (UFSAR). Examples of land use that would warrant an UFSAR update include new hazards near the DAEC such as new gas pipelines or new installations utilizing toxic gases.

NextEra Energy Resources, Duane Arnold has committed to compliance with NEI 07-07, "Nuclear Energy lnstitute's Industry Ground Water Protection Initiative".

D-4

Per NEI 07-07, the following information is presented:

11 Radioactive reactor-by-product material was identified in multiple groundwater samples collected by the DAEC's Ground Water Protection Program (GWPP).

The following was included to the DAEC Offsite Dose Assessment Manual (ODAM):

"In February 2016, the GWPP routine sampling identified a contaminate plume in the shallow aquifer (less than 25 feet deep). Release standards are set forth in Section 6.0, Radiological Liquid Effluent Release 0.6.1.2, Table 7.1-2. In accordance with GWPP Administrative Control Procedure (ACP) 1411.35 and Environmental Protection Agency (EPA) drinking water standards for tritium, 20,000 pCi/L, groundwater batch and continuous releases are expected less than (<) 20,000 pCi/L. Groundwater samples are analyzed on-site and validated by off-site secondary laboratory. Off-site laboratory results are published Annual Radiological Environmental Report."

11 Tritium concentrations from on-site monitoring wells range from non-detectable at less than (<) 146 pCi/L to 203, 138 pCi/L from monitoring well MW-OBA (D-128A). No on-site or neighboring drinking water wells are installed in this shallow aquifer. Tritium not has been identified in neighboring drinking water wells or on-site drinking water (deep aquifers). Tritiated groundwater remains within the owner controlled area. Gross alpha values in several samples are believed to be influenced by naturally occurring radioactive materials in the environment, i.e.

radon.

The United States Nuclear Regulatory Commission, NRC, provides an informative resource for tritium. The information can be found at:

https ://www. n re. gov /reading-rm/ doc-co llections/fact-s heets/triti um-rad iation-fs. h tm I New additions to REMP and GWPP sampling include:

1. As of January 1, 2018, 56 groundwater wells are operational to support GWPP efforts.

2. In February 2017, two extraction wells were placed in operation to pump groundwater from a shallow aquifer less than 25 feet below the surface.

Monitoring well, D-166, was converted to an extraction well, 0-81, on August 1, 2017. As of January 1, 2018, three extraction wells are operational.

3. As of January 1, 2018, 18 groundwater transducers are operational to support GWPP and groundwater modeling efforts.

4. A goat farmer in the NW was added to the REMP program in January 2017. Due to goat herd size, goat milk production is routinely not available.

D-5

APPENDIX E ANNUAL RADIATION DOSE ASSESSMENT E-1

Appendix E Annual Radiation Dose Assessment The annual offsite radiation dose to a member of the public was determined by assessment of environmental dosimetry results and by calculations based on monitored effluent releases.

Section A.

Dose Contribution from Direct Radiation Direct radiation dose from the operation of the DAEC was reported by TLDs placed at locations in the surrounding environment as described in the Offsite Dose Assessment Manual (ODAM).

1. Pre-operational and 2017 TLD results were evaluated with a paired difference statistical test.

The evaluation concluded that there were no significant differences in the TLD populations for the 0.5 mile and 1 mile TLD populations as per Environmental Sampling Procedure, ESP 4.5.

2. As stated in Part 1 of this report, no plant effect was indicated by the TLDs when dose results were compared to the estimated average natural background for the central United States.

Section B.

Estimated Offsite Dose from Effluent Releases

1. The contribution of dose to a member of the public most likely to be exposed from liquid and gaseous effluent releases was calculated using the Meteorological Information and Dose Assessment System (MIDAS) computer program in accordance with the ODAM. The calculation methods follow those prescribed by Regulatory Guide 1.109, "Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 1 O CFR Part 50, Appendix I".

2. Following calculation of offsite doses, the appropriateness of REMP sampling station types and locations was reviewed. The current sampling scheme was determined to be adequate for the identified receptors.

Results of the MIDAS dose calculations are displayed below.

1.) There were 81 releases of radioactive material to liquid effluents (groundwater mitigation) in 2017. The maximum dose from tritiated groundwater release was 0.00879 mrem.

2.) The maximum dose to air at the site boundary from noble gases released was 0.00204 mrad from gamma radiation at 535 meters towards the South-Southwest.

3.) The maximum dose to air at the site boundary from noble gases released was 0.00227 mrad beta radiation at 4,022 meters towards the West-Northwest.

4.) The whole body dose equivalent to the hypothetical maximally exposed individual from noble gases was 0.00360 mrem, at 805 meters towards the West.

E-2

5.) The skin dose equivalent to the hypothetical maximally exposed individual from noble gases was 0.00370 mrem, at 805 meters towards the West.

6.) The hypothetical maximally exposed organ due to airborne iodines and particulates with half-lives greater than eight days (excluding carbon-14) was the lungs of a child at 805 meters towards the West, with an estimated dose equivalent of 0.00571 mrem.

7.) The hypothetical maximally exposed organ due to airborne carbon-14 was the bone of a child located 2470 meters to the East-Northeast of the site. The dose was 0.09770 mrem.

Conclusion No measurable dose due to the operation of the DAEC or the DAEC ISFSI was detected by environmental TLDs in 2017. The calculated doses are below the regulatory limits stated in Appendix I to 1 OCFR50, 40CFR190 and 10 CFR 72.104.

Estimated Maximum Offsite Individual Doses for 2017 Type Age Distance Direction Dose or Dose Equivalent Annual 1 O CFR 50, Group (meters)

(mrem)

Appendix I "Limit" Direct Radiation None (as measured by TLDs)

Liquid Releases Whole Body Dose Child D*

SE 0.00879 mrem 3mrem Organ Dose Child -

D*

SE 0.00879 mrem 10 mrem Liver Noble Gas Gamma Air Dose 936 NW 0.00204 mrad 10 mrad Beta Air Dose 1176 N

0.00023 mrad 20 mrad Whole Body All 2120 NW 0.00360 mrem 5mrem Skin Adult 2120 NW 0.00370 mrem 15 mrem Particulates & Iodines Organ Dose Child-805 w

0.00571 mrem 15 mrem Lu mis Carbon 14 D*

Organ Dose Child-2470 N

0.09770 mrem 15 mrem Bone There is no Appendix I limit for direct radiation. Compliance with 40 CFR 190 limits of 25 mrem whole body and 75 mrem thyroid is demonstrated in the Duane Arnold Energy Center 2017 Annual Radiological Environmental Operating Report, subsections "Ambient Radiation (TLDs)" and "ISFSI Facility Operations Monitoring".

Receptor location is aquatic pathway at Cedar River, See Offsite Dose Assessment Manual, ODAM, figure 3-2.

E-3

The following graphs are TLD trends based on distance to the facility over time.

95.00 8500 I

7500 w

en 0

0 esoo DAEC ANNUAL ENVIRONMENTAL TLD RESULTS

+

1 Mil~

~ Half Mile 3 Miles

-+-Control TLDs I i YEAR OBSERVED DAEC ANNUAL ENVIRONMENTAL TLD RESULTS E-4

NG-18-0054, 2017 Annual Radiological Environmental Operating Report

Contents

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Subject:

1.0 INTRODUCTION

SUMMARY

6.0 REFERENCES

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SUMMARY

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NG-18-0054, 2017 Annual Radiological Environmental Operating Report

Text

Subject:

1.0 INTRODUCTION

SUMMARY

6.0 REFERENCES

1.0 INTRODUCTION

SUMMARY

6.0 REFERENCES

1.0 INTRODUCTION

1.0 INTRODUCTION

SUMMARY

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