ML18142A521

Kewaunee, 2017 Annual Radiological Environmental Operating Report

ML18142A521
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Site:	Kewaunee
Issue date:	12/31/2017
From:	ATI Environmental
To:	Office of Nuclear Reactor Regulation
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{{#Wiki_filter:Dominion Energy 2017 Annual Radiological Environmental Operating Report Kewaunee Power Station Dominion Energy Kewaunee, Inc. Dominion Energy 2017 Annual Radiological Environmental Operating Report Kewaunee Power Station Part I Summary and Interpretation Dominion Energy Kewaunee, Inc. ATI Environmental, Inc. /""\I Midwest Laboratory 700 Landwehr Road

• Northbrook, IL 60062-23 I 0 phone (847) 56~-0700
• fax (847) 564-45 I 7 Approved:

ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERA TING REPORT TO DOMINION NUCLEAR RADIOLOGICAL MONITORING PROGRAM FOR THE KEWAUNEE POWER STATION KEWAUNEE, WISCONSIN PART I-SUMMARY AND INTERPRETATION January 1 to December 31, 2017 Prepared and submitted by: ATI ENVIRONMENTAL Inc. Midwest Laboratory Project No. 8002 rl!~~wz: Quality Assurance Manager Danie J hannon Manager adiological Protection and Chemistry , KPS PREFACE The staff of ATI Environmental , Inc., Midwest Laboratory were responsible for the acquisition of data presented in this report. Assistance in sample collection was provided by Kewaunee Power Station personnel. The report was prepared by staff members of ATI Environmenta l, Inc., Midwest Laboratory. ii This Page Intentionally Left Blank TABLE OF CONTENTS Preface ........................... ......................................................................................................... ..................... ii List of Figures .......... ............ ................. .................................. ........................................................ ............. iv List of Tables ...................................................................... ................................................... ....................... iv

1.0 INTRODUCTION

......................................................................................................... ................. ................ 1 2.0 SUMMARY .......... ............................................................................................................................... .................. 2 3.0 RADIOLOGICAL SURVEILLANCE PROGRAM ............................................................... ............................ 3 3.1 Methodology ........................... ............................... ........... ........................................ ..................... 3 3.1.1 The Air Program ................................... .......................................... .......... ....................... 3 3.1.2 The Terrestrial Program ........... ............................................................. .................. ........ 4 3.1.3 The Aquatic Program ...................................................................................................... 5 3.1.4 Program Execution .......................................................................................................... 6 3.1.5 Program Modifications ............................................................... ...................................... 6 3.2 Results and Discussion ................................................................................................................. 7 3.2.1 Atmospher ic Nuclear Detonations and Nuclear Accidents .............................................. 7 3.2.2 The Air Environment... .......... ........................................................ ..................... .............. 7 3.2.3 The Terrestrial Environment .............................. .......................... .................................. 10 3.2.4 The Aquatic Environment .............................................................................................. 12 3.3 Land Use Census ........................................................................................................................ 13 3.4 Laboratory Procedures .................................... ............................................................................ 14 4.0 FIGURES AND TABLES ..................................................................... .............................. ......................... 15

5.0 REFERENCES

.................................................................................................. .................................. ..... 28 APPENDICES A lnterlaboratory Comparison Program Results ......................................................................... ... A-1 B Data Reporting Conventions ............................ ............................................................. ............. B-1 C Effluent Concentrations .............................. .................................. ............................................. C-1 iii LIST OF FIGURES 4-1 Sampling locations , Kewaunee Power Station .................. .................... ........................ ............... 16 4-2 Groundwater Monitoring Wells, Kewaunee Power Station ............................................. .............. 17 LIST OF TABLES No. Title Page 4.1 Sampling locations , Kewaunee Power Station ... 18 4.2 Type and frequency of collection ..................... ......................................................... .............. ..... 19 4.3 Sample codes used in Table 4.2 ................................................................................................. 19 4.4 Sampling summary, January -December, 2017 ............................................... .......................... 20 4.5 Environmental Radiological Monitoring Program Summary .................. ....................... ................ 21 4.6 Land Use Census ......................................... ............................................................................... 27 In addition, the following tables are in the Appendices: Appendix A A-1 lnterlaboratory Comparison Program Results ........... .......................................................... ....... A1-1 A-2 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 ......... .................. ...................................... ................................... AS-1 A-6 Department of Energy MAPEP comparison results ................................................................ .... A6-1 As? Environmental Resources Associates , Crosscheck Program Results (MRAD) .......................... A7-1 Attachment A: Acceptance criteria for spiked samples ................................................................ A-2 iv

1.0 INTRODUCTION

The Kewaunee Power Station is a 598 megawatt pressurized water reactor located on the Wisconsin shore of Lake Michigan in Kewaunee County. The Plant became critical on March 7, 1974. Initial power generation was achieved on April 8, 1974, and the Plant was declared commercial on June 16, 1974. On February 25, 2013, Dominion Energy Kewaunee submitted a certification of intent to cease power operations to the Nuclear Regulatory Committee . Power Operation of the Kewaunee Power Station ceased on May 7, 2013. The fuel was permanently removed from the reactor and placed in the spent fuel pool for storage on May 14, 2013. On June 15, 2017, the transfer of all spent fuel from the KPS Spent Fuel Pool (SFP) to the Independent Spent Fuel Storage Installation (ISFSI) was completed . All remaining irradiated materials were removed from the SFP in October of 2017. This report summarizes the environmental operation data collected during the period January -December 2017. Dominion Energy Kewaunee, operator and owner of the Kewaunee Power Station, assumes responsib ility for the environmental program at the Plant. Any questions should be directed to Mr. Daniel J. Shannon, Manager Radiological Protection and Chemistry, at (920) 304-1129. 2.0 SUMMARY Results of sample analyses during the period January -December 2017 are summarized in Table 4.5. Radionuclide concentrations measured at indicator locations are compared with levels measured at control locations and in preoperational studies. In no instance were REMP threshold reporting levels exceeded. 2 3.0 RADIOLOGICAL SURVEILLANCE PROGRAM Following is a description of the Radiological Surveillance Program and its execution . 3.1 METHODOLOGY The sampling locations are shown in Figure 4-1. Table 4.1 describes the locations , lists for each direction and distance from the reactor, and defines which are indicators and control locations . The sampling program monitors the air, terrestrial , and aquatic environments . The types of samples collected at each location and the frequency of collections are presented in Table 4.2, using sample codes defined in Table 4.3. The collections and analyses that comprise the program are described below. Finally, the execution of the program in the current reporting year is discussed . 3.1.1 The Air Program Ambient Gamma Radiation -TLDs Ambient gamma radiation is monitored at the six air sampling locations (K-1f, K-2, K-8, K-31, K-41 and K-43), at three milk sampling locations (K-3, K-5, and K-39), and from five additional sites (K-15, located 9.25 miles northwest of the plant; K-17, located 4.0 miles west of the plant; K-25, located 1.9 miles southwest of the plant; K-27, located 1.53 miles northwest of the plant and K-30, located 0.8 miles north of the plant ) by thermoluminescent dosimetry (TLD). Two TLD cards, each having four main readout areas containing CaS04:Dy phosphor, are placed at each location (eight TLDs at each location) . One card is exchanged quarterly , the other card is exchanged annually and read only on an emergency basis. Dosimeters have also been placed at eight additional locations (K-11 through K-1 s), to monitor an Independent Spent Fuel Storage Installation (ISFSI). They are replaced and measured quarterly . Airborne Particulates Airborne particulates are collected on 47 mm diameter, 1 µm porosity glass fiber filters, at a volumetric rate of approx. one cubic foot per minute. The filters are collected weekly from six locations (K-1f, K-2, K-8, K-31, K-41 and K-43), and dispatched by mail to ATI Environmental , Inc. for radiometric analysis. The particulate filters are counted for gross beta activity, a minimum of three days after the date of collection , to allow for the decay of naturally -occurring short-lived radionuclides . Quarterly composites from each sampling location are analyzed for gamma-emitting isotopes on a high-purity germanium (HPGe) detector. Airborne Iodine Charcoal traps are located at locations K-1f, K-2, K-8, K-31, K-41 and K-43. The traps are changed weekly and analyzed for iodine-131 immediately after arrival at the laboratory . Precipitation Monthly composites of precipitation samples are collected at K-11 and analyzed for tritium. 3 3.1.2 The Terrestrial Program Milk samples are collected from two herds grazing within three miles of the reactor site (K-34 and K-38 ); from four herds that graze between 3-7 miles of the reactor site (K-3, K-5, K-35, and K-39); and one from a dairy in Green Bay (K-42), 28.1 miles from the reactor site. The samples are collected twice per month during the grazing period (May through October) and monthly for the rest of the year. The samples are analyzed for iodine-131, strontium-89 and strontium-90,

calcium, stable potassium and gamma-emitting isotopes. Well Water Well water is collected quarterly from the four off-site well locations K-10, K-11, K-13 and K-38 and from two on-site wells located at K-1 g and K-1 h. Gamma spectroscopic analysis, tritium and gross beta on the total residue are performed for each water sample. The concentration of potassium-40 is calculated from total potassium

. Samples of water from the two on-site wells (K-1g and K-1 h) are analyzed for gross alpha. Water samples from K-1 g are also tested for strontium -89 and strontium -90. Monitoring wells and results associated with the Ground Water Protection Program (GWPP) are reported in the KPS Annual Radioactive Effluent Release Report (ARERR). The groundwater monitoring well locations associated with the GWPP are included in Figure 4-2 along with the onsite well water sampling locations associated with the REMP. Domestic Meat Domestic meat is collected annually (if available) during the third quarter, from three locations in the vicinity of the plant (K-24, K-29, and K-32). The flesh is separated from the bone and analyzed for gross alpha, gross beta and gamma emitting isotopes. Eggs are collected quarterly from locations K-24 and K-32. Samples are analyzed for gross beta, strontium-89, strontium-90 and gamma-emitting isotopes. Vegetables and Grain Annually, during the third quarter, five varieties of vegetables are collected from location K-26. Samples may also be obtained from other local sources to supplement the program (eg., K-3, and K-24). In addition, two varieties of grain or leafy vegetables are collected annually from farmland owned by Dominion Energy Kewaunee (K-23a and K-23b) and rented to a private individual for growing crops. The samples are analyzed for gross beta, strontium -89, strontium-90 and gamma emitting isotopes. Cattle Feed Cattle feed (e.g., hay and silage) is collected during the first quarter from dairy farm locations (K-3, K-5, K-34, K-35, K-38 and K-39). The samples are analyzed for gross beta, strontium-89 , strontium -90 and gamma emitting isotopes. Grass is collected during the second, third and fourth quarters from two on-site locations (K-1 b and K-1f) and from the dairy farm locations (K-3, K-5, K-34, K-35, K-38 and K-39). The samples are analyzed for gross beta, strontium -89, strontium-90 and gamma emitting isotopes. 4 Soil samples are collected twice a year on-site at K-1f and from the dairy farm locations (K-3, K-5, K-34, K-35, K-38 and K-39). The samples are analyzed for gross alpha, gross beta, strontium-89 , strontium-90 and gamma emitting isotopes. 3.1.3 The Aquatic Program Surface Water Surface water samples are taken monthly from three locations on Lake Michigan: 1) at the point where the service water is discharged into Lake Michigan (K-1 d); 2) Two Creeks Park (K-14) located 2.6 miles south of the reactor site; and 3) at the main pumping station located approximately equidistant from Kewaunee and Green Bay, which pumps water from the Rostok water intake (K-9) located 11.5 miles NNE of the reactor site. Both raw and tap water are collected at K-9. One-gallon water samples are taken monthly from three creeks that pass through the site (K-1 a, K-1 b, and K-1e). Samples from North and Middle Creeks (K-1a, K-1 b) are collected near the mouth of each creek. Samples from the South Creek (K-1 e) are collected about ten feet downstream from the point where the outflow from the two drain pipes meets. Additionally, the drainage pond (K-1 k), located approximately 0.6 miles southwest of the plant, is included in the sampling program. Water samples at K-14 are collected and analyzed in duplicate . The water is analyzed for gamma emitting isotopes, gross beta activity in total residue, dissolved and suspended solids, and potassium-40 . The concentration of potassium-40 is calculated from the total potassium concentration. In addition, quarterly composites of monthly grab samples are analyzed for tritium, strontium-89 and strontium-90 . Fish samples are collected during the second, third and fourth quarters near location K-1d. The flesh is separated from the bones, gamma scanned and analyzed for gross beta activity. Bone samples are analyzed for gross beta, strontium-89 and strontium -90. Lafond's Fish Market (K-36) may be used for backup fish samples, if needed. Aquatic Slime Periphyton algae (slime) or aquatic vegetation is collected during the second and third quarters from three Lake Michigan locations (K-1d, K-9 and K-14), from three creek locations (K-1a, K-1b and K-1 e) and from the drainage pond (K-1 k), if available . The samples are analyzed for gross beta activity. If the quantity is sufficient , analyses for gamma-emitting isotopes and strontium-89 and strontium-90 activities are performed . Bottom Sediment Bottom sediments are collected in May and November from five locations (K-1 c, K-1 d, K-1j, K-9 and K-14). The samples are analyzed for gross beta, strontium-89, strontium-90 and gamma emitting isotopes. 5 3.1.4 Program Execution Program execution is summarized in Table 4.4. The program was executed for the year 2017 as described in the preceding sections, with the following exceptions

Air Particulates/

Air Iodine A partial air particulate/ air iodine sample (149 m3) was collected at location K-31, for the sample period ending 4/11/17. A power failure with the sample pump resulted in a reduced runtime of 82.5 hours. (CR 1139) A partial air particulate/ air iodine sample (122 m3) was collected at location K-8, for the sample period ending 6/27/17. A power failure with the sample pump resulted in a reduced runtime of 67.5 hours. (CR 1285) Fish No fish sample was available for collection for the fourth quarter of 2017. Attempts were unsuccessful through both commercial and sport fishing. (CR 1571) 3.1.5 Program Modificat ions None. 6 3.2 RESULTS AND DISCUSSION Results for the reporting period January to December, 2017 are presented in summary form in Table 4.5. For each type of analysis, of each sampled medium, the table shows the annual mean and range for all indicator and control locations . The location with the highest annual mean and the results for this location are also given. The discussion of the results has been divided into three broad categories: the air, terrestrial, and aquatic environments . Within each category, samples will be discussed in the order listed in Table 4.4. Any discussion of previous environmental data for the Kewaunee Power Station refers to data collected by Environmental Inc., Midwest Laboratory . Results of all measurements made in 2017 are not included in this section, although references to these results will be made in the discussion . A complete tabulation of results is provided in Part II of the 2017 annual report on the Radiological Monitoring Program for the Kewaunee Power Station. 3.2.1 Atmospheric Nuclear Detonations and Nuclear Accidents There were no atmospheric nuclear tests or accidents reported in 2017. The Chernobyl and Fukushima Daiichi nuclear accidents occurred on April 26, 1986 and March 11, 2011, respectively . The last reported atmospheric nuclear test was conducted by the People's Republic of China on October 16, 1980. Contributions from these events have resulted in the presence of long:lived radioisotopes of cesium and strontium still detectable in the environment. 3.2.2 The Air Environment Ambient Gamma Radiation -TLDs The MAGNASTOR ISFSI campaign to transfer the remainder of spent fuel to dry cask storage started in January 2017 and concluded in June 2017. Due to the travel path to the ISFSI pad and the increased dose rates at the ISFSI pad, the results shown on some of the protected area TLD's (K1 I, K1 m, K1 o, K1 p, K1 q, K1 rand K1 s) near the ISFSI pad may be higher than seen in the past. The Protected Area was reduced to the area adjacent to the ISFSI pad in December 2017. As part of this construction project the south ISFSI fence was relocated to the south approximately 20 feet. Prior to the old fence being removed the TLD's (K1 I and K1 s) on the south fence were moved to the approximate location of the new fence and subsequently attached to the new fence once it was installed. The movement of the two south TLD's occurred on April 111\ 2017. Both of these TLD's along with K1 n and K1 were removed from use on January 1 si, 2018 as part of revision 21 to the REMM. Ambient gamma radiation was monitored by TLDs at fourteen locations , eight indicators (K-1f, K-5, K-17, K-25, K-27, K-30, K-39 and K-43) and six controls (K-2, K-3, K-8, K-15, K-31 and K-41 ). TLDs at the indicator locations measured a mean dose equivalent of 16.1 mR/91 days, in close agreement with the control locations 15.4 mR/91 days. The readings are similar to the averages obtained from 2002 (and prior to) through 2016. These results support the conclusion that no plant effect on ambient gamma radiation was indicated . These values are lower than the United States average value of 19.5 mR/91 days due to natural background radiation (National Council on Radiation Protection and Measurements , 1975). The highest annual mean was 17.6 mR/91 days, measured at indicator location K-25. 7 Year Averaqe (Indicators) Averaqe (Controls) Dose rate /mR/91 davs) 2003 14.1 13.7 2004 14.8 14.0 2005 15.7 14.3 2006 16.4 15.0 2007 16.2 15.2 2008 15.6 14.2 2009 15.2 13.9 2010 15.2 14.3 2011 15.0 14.5 2012 16.1 15.3 2013 16.2 15.5 2014 15.0 14.8 2015 16.2 16.1 2016 16.5 15.9 2017 16.1 15.4 Ambient gamma radiation as measured by thermoluminescent dosimetry . Average quarterly dose rates. Using ANSI/HPS N13.37-2014 as guidance, a determination of facility related dose was performed using quarterly TLD data from control and indicator locations from 2007 through 2016. A baseline background dose (Ba) was computed for each TLD location. Then a Quarterly Minimum Differential Dose (MDDa) was calculated as 3 times the 90th percentile of the standard deviations of the historical quarterly results. The result of this calculation was 6.9 mrem. Transit and storage doses weren't considered since the TLD's currently are, and have historically been, collected in the field and delivered to the laboratory for immediate processing . 2017 results at all locations both indicator and control were lower than the sum of the Baseline Background Dose (Ba) and the Quarterly Minimum Differential Dose (MDDa), which according to ANSI/HPS-N13.37-2014 indicates no detection (ND) and which supports the conclusion that there is no plant effect. Normalized Quarterly Monitoring Data Quarterly Facility Dose Monitoring Quarterly Ma (mrem per standard quarter) Fa :::: Ma -[Ba+MDDa](mrem) Baseline Location Ba(mrem) 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr 1st Qtr 2nd Qtr 3rd Qtr K-1f 13.2 15.6 14.9 14.4 15.4 ND ND ND K-5 17.0 16.0 17.2 14.5 16.6 ND ND ND K-17 15.2 15.1 14.1 13.1 13.1 ND ND ND K-25 17.3 17.8 18.9 16.3 17.5 ND ND ND K-27 16.1 17.7 17.2 16.2 14.7 ND ND ND K-30 15.5 18.0 15.3 16.0 14.3 ND ND ND K-39 15.7 18.4 17.2 16.6 16.1 ND ND ND K-43 15.9 15.1 14.1 13.1 13.1 ND ND ND K-2 15.8 16.8 17.2 15.8 17.4 ND ND ND K-3 17.0 18.3 17.0 17.4 16.8 ND ND ND K-8 15.0 18.3 17.2 16.2 16.6 ND ND ND K-15 14.1 15.5 14.9 14.5 14.1 ND ND ND K-31 12.5 13.5 13.3 11.7 12.3 ND ND ND K-41 15.3 14.2 14.3 12.7 13.4 ND ND ND Table assumes 1 roentgen= 1 rem (per NRC -Health Physics Positions Based on 10 CFR Part 20, October 2015) 8 4th Qtr ND ND ND ND ND ND ND ND ND ND ND ND ND ND Airborne Particulates The annual gross beta concentration in air particulates averaged 0.021 pCi/m3 at the both the indicator location and control locations , similar to the means observed from 2002 (and prior to) through 2016. There is no indication of a plant effect, the average readings were evenly distributed between indicator and control locations . New sampler pumps were installed in the third quarter of 2010. The slight increases in beta activity may be due to a change in the calculated volume. Results are tabulated below. Year Averaae (Indicators) Averaae /Controls) Concentration (pCi/m3) 2002 0.023 0.023 2003 0.022 0.022 2004 0.019 0.020 2005 0.023 0.023 2006 0.021 0.021 2007 0.022 0.021 2008 0.022 0.022 2009 0.023 0.023 2010 0.023 0.022 2011 0.029 0.029 2012 0.029 0.030 2013 0.024 0.025 2014 0.019 0.019 2015 0.022 0.022 2016 0.021 0.020 2017 0.021 0.021 Average annual gross beta concentrations in airborne particulates. Variation in the gross beta activity throughout the year is not unusual. Typically , higher beta averages occur during the months of January and December, and the first and fourth quarters, as noted in data from 2002 through 2016. 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 , was detected in all samples, with an average activity of 0.077 pCi/m at the indicator locations and an average of 0.074 pCi/m3 at the control locations . All other gamma-emitting isotopes were below their respective MDC levels. Airborne Iodine Levels of airborne iodine-131 were below a Minimum Detectable Concentrat ion(MDC) of 0.030 pCi/m3 at all locations . There was no indication of a plant effect on the local air environme nt. Precipitation Precipitation was monitored for tritium at indicator location, K-11. The concentration was below an MDC of 187 pCi/L in all samples. 9 3.2.3 The Terrestrial Environment Milk 126 milk samples were tested for the presence of iodine-131 , all measured below an MDC of 0.5 pCi/L. Strontium-89 concentrations measured below an MDC of 1.3 pCi/L in all samples. Measurable levels of strontium-90 above an MDC of 1.0 pCi/L were detected in nine of eighty-four samples tested. The mean values were 1.2 pCi/L at the indicator and 1.1 at the control locations and are similar to averages seen from 1990 through 2016. For gamma emitting

isotopes, concentrations measured below the required limits of 15 pCi/L for barium-lanthanum-140 and 10 pCi/L for cesium-134 and cesium-137

. Potassium-40 results were comparable at the indicator and control locations (1367 and 1405 pCi/L, respectively ), and are consistent with levels observed from 1990 through 2016. Detection of strontium , iodine and potassium activity is consistent with findings of the National Center for Radiological Health (1968). Most radio-contaminants in cattle feed do not find their way into milk, exceptions are radioisotopes of potassium , cesium, strontium, barium, and iodine. Due to chemical similarities between strontium and calcium, and cesium and potassium , organisms tend to deposit strontium-89 and strontium-90 in bone and cesium-137 in the soft tissue and flesh. Consequently , ratios of strontium-90 activity to the weight of calcium in milk and cesium-137 activity to the weight of potassium in milk were monitored in order to detect potential environmental accumulation of these radionuclides . Measured concentrat ions of calcium are in agreement with previously determined values and averaged 0.95 g/L at the indicator location and 0.96 g/L at the control locations . The average measured concentrations of stable potassium were 1.67 g/L at the indicator location and 1.71 at the control locations . There was no indication of any effect due to the operation of the Kewaunee Power Station. Well Water Two of eight samples tested positive for gross alpha above an MDC of 2.6 at an average of 3.8 pCi/L. Gross beta activity above an MDC of 2.3 pCi/L, was measured in six of the twenty indicator samples tested at an average of 3.6 pCi/L. It is not unusual to see high potassium-40 levels in an agricultural setting. Potassium-40 is present wherever stable potassium is found. Therefore positive results can be attributed to agricultural runoff. The gross alpha activities are most likely contributions from naturally -occurring daughters of radium and thorium when detected in the well water. No strontium-89 or strontium-90 were detected for the on-site well (K-1 g). The concentrations measured below MDC values of 0.6 and 0.5 pCi/L, respectively . Samples were tested for tritium and gamma emitting isotopes. All tritium concentrat ions measured below a detection level of 179 pCi/L. Gamma-emitting isotopes measured below respective MDC levels. Domestic Meat In domestic meat samples, gross alpha measured below an MDC of 0.034 pCi/g wet for both samples tested, while the gross beta concentrat ions measured 2.01 pCi/g wet and 1.31 pCi/g wet for indicator and control samples respectively . Gamma-spectroscopic analyses showed that most beta activity was due to naturally occurring potassium-40 (2.00 pCi/g wet for the indicator and 1.76 pCi/g wet for the control). All other gamma-emitting isotopes measured below MDC levels. 10 l £99§ In samples of eggs tested, the gross beta concentrations averaged 1.55 pCi/g wet at the indicator location and 1.59 pCi/g wet for the control location, similar to observed concentrations of naturallyoccurring potassium-40 (1.19 and 1.25 pCi/g wet respectively) . Other gamma-emitting isotopes were below their respective MDC levels. Levels of strontium-89 measured less than an MDC of 0.019 pCi/g wet in all samples. Strontium-90 measured less than an MDC of 0.009 pCi/g wet in all samples tested. Vegetables and Grain In vegetables and grain samples an average gross beta concentration of 5.51 pCi/g wet was measured at the three indicator locations and an average of 3.39 pCi/g wet was measured for the six control samples from location K-26, due primarily to potassium-40 activity which was measured at an average of 2.47 pCi/g wet and Be-7 which was detected in the two samples collected at indicator location K-23 at an average of 1.53 pCi/g wet. No strontium-89 was detected above an MDC of 0.024 pCi/g wet. No strontium-90 was detected above an MDC of 0.013 pCi /g wet. These results compare with results from past years and do not indicate a plant effect. Cattle Feed For cattlefeed , average gross beta concentrations were 11.39 and 8.59 pCi/g wet at the indicator and control locations respectively which agreed well with the measured potassium-40 levels of 8.72 and 7.23 pCi/g wet, at the indicator and control locations respectively. No strontium-89 activity was detected above an MDC of 0.048 pCi/g wet. No strontium -90 activity was measured above an MDC of 0.030 pCi/g wet. No plant effect is indicated . Grass In grass, mean gross beta measured 9.52 and 15.45 pCi/g wet at indicator and control locations, respectively, In all cases the activity was predominantly due to naturally occurring potassium-40 and beryllium-? . Strontium-89 tested below MDC values of 0.270 pCi/g wet for all samples and strontium-90 was measured below an MDC of 0.213 pCi/g in all samples. With the exception of the naturally-occurring beryllium and potassium , gamma-emitting isotopes were below MDC levels. Soil Gross alpha concentrations in soil averaged 10.04 pCi/g dry in all ten indicator location samples and 11.37 pCi/g dry at the two control locations . Mean gross beta levels measured at indicator and control locations averaged 27.37 and 26.25 pCi/g dry, respectively , primarily due to potassium-40 activity. Strontium-89 was below an MDC level of 0.240 pCi/g dry in all samples. Strontium-90 was detected in only one sample which was an indicator sample at a value of 0.062 pCi/g dry. Cesium-137 was detected in all fourteen soil samples at an average of 0.08 pCi/g dry at the indicator and 0.1 OpCi/g dry at the control locations . Trace levels of Cs-137 in the environment can be attributed to nuclear testing and accidents . Potassium-40 was detected in all samples and averaged 18.71 and 16.32 pCi/g dry for indicator and control locations, respectively . All other gamma-emitting isotopes were below respective MDC levels. The levels of detected activities are similar to those observed from 1990 through 2016. The data suggests no evidence of a plant effect. 11 3.2.4 The Aquatic Environment Surface Water Gross beta activity in surface water measured higher at the indicator locations ( 4.2 pCi/L) than at the control locations (1.4 pCi/L). A similar pattern of activity has been observed since 1978. In 2017, the highest activities measured were sampled from location K-1 a. The average activity was 10.0 pCi/L, with a range of 3.2 to 29.1 pCi/L, due primarily to potassium-40 activity. The potassium-40 concentrations averaged 9.3 pCi/L and ranged from 4.5 to 27.2 pCi/L. Year AveraQe (Indicators) AveraQe (Controls) Gross Beta /oCi/U 2002 5.7 2.2 2003 7.3 2.4 2004 6.2 2.3 2005 5.2 1.7 2006 5.5 1.8 2007 5.7 1.8 2008 4.7 1.5 2009 4.7 1.5 2010 4.7 1.4 2011 5.0 1.5 2012 6.1 1.4 2013 5.7 1.5 2014 4.4 1.9 2015 4.2 1.4 2016 5.2 1.6 2017 4.2 1.4 Average annual gross beta concentrat ions in surface water. These differences in activity are due in part to the indicator location (K-1 k), a pond formed by drainage of surrounding fields to the southwest. The control sample is Lake Michigan water, which varies very little in gross beta concentration during the year, while indicator samples include the two creek locations (K-1a and K-1e) which are much higher in gross beta concentration and exhibit large month-to-month variations . The K-1a creek draws its water from the surrounding fields which are heavily fertilized

and the K-1 e creek draws its water mainly from the Sewage Treatment Plant. In general, gross beta concentrations were high when potassium-40 levels were high and low when potassium-40 levels were low, indicating that fluctuations in beta concentra tion were due to variations in potassium-40 concentrat ions and were not due to plant operations. The fact that similar fluctuations at these locations were observed in pre-operational studies conducted prior to 197 4 supports this assessment.

Tritium was detected above an MDC of 184 pCi/L in two fourth quarter composite samples from locations K-14a and K-14b at values of 365 and 457 pC/L respectively. Analysis of the constituent monthly samples resulted in values of 217 and 206 pCi/L for the November samples at location K-14a and K-14b respectively and 744 and 872 pCi/L for the December samples at locations K-14a and K-14b respectively. These elevated tritium results are believed to have resulted from the discharge of the Refueling Water Storage Tank (RWST) during the fall of 2017. No tritium was detected in any of the other thirty-four samples tested (quarterly composites of monthly samples). (CR 1684) All analyses for strontium-89 measured below an MDC of 1.3 pCi/L. All analyses for Strontium-90 measured below an MDC of 0.8 pCi/L. With the exception of naturally occurring potassium-40, gamma-emitting isotopes measured below their respective MDC levels in all samples. 12 Fish In fish, gross beta concentrations averaged 3.61 pCi/g wet in flesh and 1.83 pCi/g wet in bone fractions . In flesh, the gross beta concentration was primarily due to potassium-40 activity which averaged 2.87 pCi/g wet for the two samples. Excluding potassium-40 , gamma-emitting isotopes measured below their respective MDC levels in both samples. Strontium-89 concentrations in the bone were below an MDC of 0.41 pCi/g wet. Strontium-90 was detected in both samples at an average of 0.19 pCi/g wet. Aquatic Slime In periphyton algae(slime) and aquatic vegetation samples, mean gross beta concentrations for indicator and control locations measured 3.96 and 6.06 pCi/g wet, respectively , due primarily to combined potassium-40 and beryllium -? average activity of 3.37 and 5.09 pCi/g wet for the indicator and control locations , respectively . Other gamma-emitting isotopes, with the exception of naturally-occurr ing beryllium -? and potassium-40 discussed above, were below their respective MDC levels. No strontium -89 was measured above the detection level of 0.074 pCi/g wet. No strontium -90 was measured above an MDC of 0.038 pCi/g wet. These measurements are consistent with measurements obtained in past years and do not indicate a plant effect. Bottom Sediments In bottom sediment samples, the mean gross beta concentrations measured an average 7.32 pCi/g dry at the indicator locations versus an average of 22.43 pCi/g dry at the control location. Cesium-134 measured below the MDC level of 0.016 pCi/g dry for all samples tested. Cesium-137 measured below an MDC of 0.031 pCi/g dry in all samples. Other gamma-emitting isotopes, with the exception of naturally -occurring potassium -40, were below their respective MDC levels. Strontium -89 was measured below an MDC of 0.116 pCi/g dry for all samples. Strontium-90 was measured below an MDC of 0.044 pCi/g dry for all locations. No plant effect is indicated . 3.3 LAND USE CENSUS The Land Use Census satisfies the requirements of the KPS Radiological Environmental Monitoring Manual. Section 2.2.2 states: "A land use census shall be conducted and shall identify within a distance of 8 km (5 mi.) the location, in each of the 10 meteorological

sectors, of the nearest milk animal, the nearest residence and the nearest garden of greater than 50m2 (500 ft2) producing broad leaf vegetation

." (Figure 4-1) The 2017 Land Use Census was completed to identify the presence of the nearest milk animals, gardens and farm crops surrounding the Kewaunee Power Station. The Land Use Census was completed on September 7, 2017. The census is conducted annually during the growing season per Health Physics Procedure RP-KW-001-014. In summary, the nearest residence and the nearest milk animal did not change from the 2016 census in any sectors. Two sectors, J & K (See figure 4.1) did not have any identified gardens during the 2017 census but did have them in the previous year. The closest garden in sector L changed from 1 mile to 2.04 miles from the site. 13 3.4 LABORATORY PROCEDURES 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 Radioactiv ity in Drinking Water, 1980, and the U.S. Environmental Protection Agency, EERF, Radiochemical Procedures Manual, 1984. Environmental , Inc., Midwest Laboratory has a comprehens ive 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 participat ion in lnterlaboratory Comparison (crosschec k) Programs. Results obtained are presented in Appendix A. 14 4.0 FIGURES AND TABLES 15 l~ciir.urn 1 ltiks OAIJlll ---11-"-'"-l-----'..__---i I ~i A Figure 4-1. Sampling locations , Kewaunee Power Station. 16 1-'J 1/L, Jli!AIE "r NQTC'i* 1. LOCATr~ Of UONJTQATJ,IC WELLS SIJR'Jt.vro i3Y S1S ON .U.C z:, 2007. 2.LC.C:.TJONS or WATER St.f"rl'f WCLLS ARE (';.LU4!EO, lEl,ll!D; ---8' Hl().l rtNCE. Si.PPLY fli(I.L MONl10!f1NC WELL Figure 4-2. Groundwater Monitoring Wells, Kewaunee Power Station. 17 .. i06,"J5Z S0!.67ZJ £CG.o:21s £GS.516S 60,.Wi5 &aS.8Sil Table 4.1. Sampling locations. Kewaunee Power Station. Code K-1 K-1a K-1b K-1c K-1d K-1e K-1f K-1g K-1h K-1j K-1k K-11 K-1m K-1n K-1o K-1p K-1q K-1r K-1s K-2 K-3 K-5 K-8 K-9 K-10 K-11 K-13 K-14 K-15 K-17 K-23a K-23b K-24 K-25 K-26 K-27 K-29 K-30 K-31 K-32 K-34 K-35 K-36 K-38 K-39 K-41 K-42 K-43 K-44 Type* C I C C C C I C I C C I C I C C

• I = indicator; C = control Distance (miles/ and Sector 0.62 N 0.12 N 0.10 N 0.10 E 0.12 S 0.12 S 0.06W 0.12 NW 0.10 S 0.60 SW 0.13 N 0.15 N 0.16 N 0.16 N 0.17 N 0.16 N 0.13 N 0.12 N 8.91 NNE 5.9 N 3.2 NNW 4.85WSW 11.5 NNE 1.35 NNE 0.96 NW 3.0SSW 2.6 S 9.25 NW 4.0W 0.5W 0.6 N 5.4 N 1.9SW 10.8 SSW 1.53NW 5.34W 0.8 N 6.35 NNW 7.8 N 2.7 N 6.71 mi. WNW 8.0 mi NNE 2.45mi. WNW 3.46 mi. N 22NW 28.1 NW 2.71 SSW 2.63 SW b Distances are measured from reactor stack. Onsite North Creek Middle Creek Location 500' north of condenser discharge Condenser discharge South Creek Meteorolog ical Tower South Well North Well 500' south of condenser discharge Drainage Pond, south of plant ISFSI Southeast ISFSI East ISFSI Northeast ISFSI North ISFSI Northwest ISFSI West ISFSI West ISFSI Southwest WPS Operations Building in Kewaunee Lyle and John Siegmund Farm, N2815 Hy 42, Kewaunee Ben Paplham Farm, E4160 Old Settlers Rd, Kewaunee St. Isadore the Farmer Church, 18424 Tisch Mills Rd, Tisch Mills Green Bay Municipal Pumping Station, six miles east of Green Bay (sample source is Lake Michigan from Rostek Intake two miles north of Kewaunee. Turner Farm, Kewaunee site Louise Ihlenfeld!

Farm, N879 Hy 42, Kewaunee Rand's General Store, Two Creeks Two Creeks Park, 2.6 miles south of site Gas Substation, 1.5 miles north of Stangelville Klimesh's' Farm, N885 Tk B, Kewaunee 0.5 miles west of plant, Kewaunee site 0.6 miles north of plant, Kewaunee site Fictum Farm, N2653 Hy 42, Kewaunee Wotachek Farm, 3968 E. Cty Tk BB, Two Rivers Willert Farms Vegetable Stand (8.0 miles south of "BB") Schleis Farm, E4298 Sandy Bay Rd, Kewaunee Kunesh Farm, E3873 Cty Tk G, Kewaunee End of site boundary E. Krok Substation , Krok Road Piggly Wiggly, 931 Marquette Dr., Kewaunee Leon and Vicki Struck, N1549 Lakeshore Dr., Kewaunee Duane Ducat, N1215 Sleepy Hollow Rd., Kewaunee Lafond's Fish market, 216 Milwaukee , Kewaunee Dave Sinkula Farm. N890 Town Hall Road, Kewaunee Francis Wojta, N1859 Lakeshore Dr., Kewaunee Point Beach-EOF, 3060 Voyager Dr. , Green Bay Lamers Dairy Products obtained from Green Bay Markets Gary Maigatter Property, 17333 Hwy 42, Two Rivers Gerald Schleis Property, 4728 Schleis Rd., Two Rivers 18 Table 4.2. Type and frequency of collection. Location Weekly K-1a K-1b K-1c K-1d K-1e K-1f AP9,AI K-1A, K-1h K-1i K-1k K-11 throuQh K-1s K-2 AP9,AI K-3, K-5 K-8 AP9,AI K-9 K-10, K-13 K-11 K-14 K-15, K-17 K-23a, b K-24 K-25 K-26 K-27 K-29 K-30 K-31 AP 9, Al K-32 K-34, K-35 K-36 K-38 K-39 K-41 AP 9, Al K-42 K-43 AP 9, Al 0Three times a year, second, third and fourth quarters. bCollected in May and November. Monthly SW SW SW SW SW Ml C SW' PR swh Ml C Ml C Ml C Ml C 0 Monthly from November through April; semimonthly May through October. d First quarter (January, February or March) only.

• Alternate, if milk is not available.

Table 4.3. Sample Codes: Code Description Al Airborne Iodine AP Airborne particulates BS Bottom sediments CF Cattlefeed DM Domestic Meat EG Eggs Fl Fish GLV Green Leafy Vegetables GRN Grain 19 Quarterly Semiannually Annually SL1 GRa SL1 BS b Fl a SL1 BS b SL1 GRa TLO so WW BS b SL1 TLD TLD GRa TLD so CF d TLD SL1 BS b WW WW SL1 BS b TLD GRN/GLV0 EG OM TLD VE/GLV0 TLD OM TLD TLD EG OM GR a so CFd Fl a,j GRa WW so CF d GR a TLO so CF d TLD TLD 1 Second and third quarters. g The frequency may be increased dependent on the dust loading. hTwo samples are collected, North (K-14a) and South (K-14b) of Two Creeks Road. ; Two samples, raw and tap water. 1 Alternate for K-1d fish sample, if needed. Code Description GR Grass Ml Milk PR Precipitation SL Slime so Soil SW Surface water TLD Thermoluminescent Dosimeter VE Vegetables WW Well water Table 4.4. Sampling

Summary, January -December, 2017. Sample Type Air Environment TLD's Airborne particulates Airborne Iodine Precipitation Terrestrial Environment Milk (May-Oct)

(Nov-Apr) Well water Domestic meat Eggs Vegetables -5 varieties Grain -clover Cattle feed Grass Soil Aguatic Environment Surface water Fish Slime Bottom sediments Collection Type and Frequency* CIQ CM/ CM/ CIM GISM GIM GIQ GIA GIQ GIA GIA GIA GITA GISA GIM GITA GISA GISA

• Type of collection is coded as follows:

C = continuous; G = grab. Number of Locations 22 6 6 7 *7 6 2 2 2 6 8 7 7 1 7 5 Frequency is coded as follows: W = weekly; BW = bi-weekly; SM = semimonthly; M = monthly; Q = quarterly; SA= semiannually; TA= three times per year; A= annually. 20 Number of Samples Collected 88 312 312 12 84 42 24 2 8 6 3 12 24 14 108 2 14 10 Number of Samples Missed 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 Table 4.5 Environmental Radiation Monitoring Program Summary. Name of Facility Location of Facility Type and Sample Type Number of (Units) Analyses" TLDs (Quarterly) Gamma 56 (mR/91days) TLDs, Quarterly Gamma 32 (Protected Area) (mR/91 days) Airborne GB 312 Particulates (pCi/m3) GS 24 Be-7 Nb-95 Zr-Nb-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 Airborne Iodine (pCi/m3) 1-131 317 Precipitation H-3 12 (pCi/L) Milk 1-131 126 (pCi/L) Sr-89 84 Sr-90 84 GS 126 K-40 Cs-134 Cs-137 Ba-La-140 (g/L) K-stable 84 (g/L) Ca 84 Kewaunee Nuclear Power Plant Docket No. _5_o_-3_0_5 ______ _ Kewaunee County, Wisconsin Reporting Period January-December, 2017 (County, State) Indicator Location with Highest Control Number Locations Annual Mean Locations Non-MDCb Mean (F)0 Mean (F)° Mean (F)0 Routine Range0 Locationd Range0 Range0 Results* K-25, 0 3.0 16.1 (32/32) Wotachek Farm 17.6 (4/4) 15.4 (24/24) (13.1-18.9) 1.9SW (16.3-18.9) (11.7-18.3) 3.0 110.8 (32/32) K-1n, ISFSI NE 266.4 (4/4) none 0 (19.1-389.9) 0.16 N (49.1-389.9) 0.010 0.021 (104/104) K-08, St. Isadore 0.021 (52/52) 0.021 (208/208) 0 (0.008-0.042) The Farmer Church (0.010-0.039) (0.007-0.045) 4.85WSW 0.020 0.077 (8/8) K-43, Maigatter 0.082 (4/4) 0.074 (16/16) 0 (0.059-0.101) 2.71 SSW (0.067-0.101) (0.063-0.093) 0.003 <MDC --<MDC 0 0.002 <MDC --<MDC 0 0.002 <MDC --<MDC 0 0.014 <MDC --<MDC 0 0.001 <MDC --<MDC 0 0.001 <MDC --<MDC 0 0.004 <MDC --<MDC 0 0.008 <MDC --<MDC 0 0.03 <MDC -<MDC -0 187 <MDC none 0 --0.5 <MDC --<MDC 0 1.3 <MDC --<MDC 0 0.8 1.2 (4/48) K-5, Paplham Farm 1.3 (2/12) 1.1 (5/36) 0 (1.1-1.5) 3.2 NNW (1.1-1.5) (1.0-1.2) 50 1367 (72172) K-35, Ducat 1432 (1 8/18) 1405 (54/54) 0 (1242-1586) 6.71 mi. WNW (1218-1637) (1218-1637) 7.0 <MDC --<MDC 0 7.2 <MDC --<MDC 0 7.5 <MDC --<MDC 0 1.00 1.67 (48/48) K-35, Ducat 1.75 (12/12) 1.71 (36/36) 0 (1.54-1.93) 6.71 mi. WNW (1.57-1.91) (1.57-1.91) 0.40 0.95 (48/48) K-39, Wojta Farm, 0.98 (12/12) 0.96 (36/36) 0 (0.83-1.08) 3.46 mi. N (0.81-1.10) (0.81-1.18) 21 Table 4.5 Environmental Radiation Monitoring Program Summary. Name of Facility Location of Facility Kewaunee Nuclear Power Plant Kewaunee County, Wisconsin (County, State) Docket No. 50-305 Reporting Period January-December, 2017 Indicator Location with Highest Control Number Sample Type Type and Locations Annual Mean Locations Non-(Units) Number of MDCb Mean (F)0 Mean(t-) Mean(F)0 Routine Analyses* Range0 Locationd Range0 Range0 Results* Well Water GA 8 2.6 3.8(2/8) K-1g, South Well 4.0(1/1) None 0 (3.6-4.0) 0.06 mi S (pCi/L) GB 24 2.3 3.6(6/20) K-38, Sinkula Farm 6.5(1/1) <MDC 0 (2.5-6.5) 2.45mi,WNW H-3 24 179 <MDC --<MDC 0 K-40 24 0.3 2. 09( 16/20) K-38, Sinkula Farm 2.98(4/4) 1.03(4/4) 0 (0.46-8.86) 2.45 mi,WNW (0.46-8.86) (0.99-1.06) Sr-89 4 0.6 <MDC --None 0 Sr-90 4 0.5 <MDC --None 0 GS 24 -Mn-54 3.4 <MDC --<MDC 0 Fe-59 7.4 <MDC --<MDC 0 Co-58 4.2 <MDC --<MDC 0 Co-60 4.0 <MDC --<MDC 0 Zn-65 8.6 <MDC --<MDC 0 Zr-Nb-95 4.6 <MDC --<MDC 0 Cs-134 4.2 <MDC --<MDC 0 Cs-137 4.9 <MDC --<MDC 0 Ba-La-140 13.4 <MDC --<MDC 0 GA 2 0.034 <MDC --<MDC 0 Domestic Meat K-24, Fictum Farm 2.01 (1/1) GB 2 0.10 2.01 (1/1) 1.31 (1/1) 0 (pCi/gwet) 5.45mi. N GS 2 --Be-7 0.18 <MDC --<MDC 0 K-40 0.50 2.00 (1/1) K-24, Fictum Farm 2.00 (1/1) 1.76 (1/1) 0 5.45mi. N -Nb-95 0.028 <MDC --<MDC 0 Zr-95 0.020 <MDC --<MDC 0 Ru-103 0.023 <MDC --<MDC 0 Ru-106 0.099 <MDC --<MDC 0 Cs-134 0.014 <MDC --<MDC 0 Cs-137 0.017 <MDC --<MDC 0 Ce-141 0.036 <MDC --<MDC 0 Ce-144 0.117 <MDC --<MDC 0 GB 8 0.008 1.55 (4/4) K-32, Piggly Wiggly 1.59 (4/4) 1.59 (4/4) 0 Eggs (1.46-1.63) 7.8mi. N (1.40-1.97) (1.40-1.97) (pCi/gwet) Sr-89 8 0.019 <MDC --<MDC 0 Sr-90 8 0.009 <MDC --<MDC 0 GS 8 Be-7 0.069 <MDC --<MDC 0 K-40 0.50 1.19 (4/4) K-32, Piggly Wiggly 1.25 (4/4) 1.25 (4/4) 0 (1.05-1.30) 7.8mi. N (1.16-1.37) (1.16-1.37) Nb-95 0.010 <MDC --<MDC 0 Zr-95 0.016 <MDC --<MDC 0 Ru-103 0.008 <MDC --<MDC 0 Ru-106 0.064 <MDC --<MDC 0 Cs-134 0.006 <MDC --<MDC 0 Cs-137 0.006 <MDC --<MDC 0 Ce-141 0.017 <MDC --<MDC 0 Ce-144 0.054 <MDC --<MDC 0 22 Table 4.5 Environmental Radiation Monitoring Program Summary. Name of Facility Location of Facility Sample Type Type and (Units) Number of Analyses* Vegetables and GB 9 Grains (pCi/gwet) Sr-89 9 Sr-90 9 GS 9 Be-7 K-40 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 Cattlefeed GB 12 (pCi/gwet) Sr-89 12 Sr-90 12 GS 12 Be-7 K-40 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 -Kewaunee Nuclear Power Plant Docket No. 50-305 Kewaunee County, Wisconsin Reporting Period January-December, 2017 (County, State) Indicator Location with Highest Control Number Locations Annual Mean Locations Non-MDCb Mean (F)0 Mean (Ft Mean (F)0 Routine Range0 Location d Range0 Range0 Results* 0.010 5.51 (3/3) K-23, Kewaunee 6.52 (2/3) 3.39 (6/6) 0 (3.48-7.

72) Site, 0.5 mi. W (5.32-7.72)

(2.61-3.94) 0.024 <MDC --<MDC 0 0.013 <MDC --<MDC 0 0.077 1.53 (2/3) K-23, Kewaunee 1.53(2/2) <MDC 0 (1.05-2.03) Site, 0.5 mi. W (1.05-2.03) 0.50 3.96 (3/3) K-23, Kewaunee 5.05 (2/2) 2.47(6/6) 0 (1.79-5.11) Site, 0.5 mi. W (4.99-5.11) (2.07-3.12) 0.017 <MDC <MDC 0 0.025 <MDC <MDC 0 0.019 <MDC <MDC 0 0.191 <MDC <MDC 0 0.018 <MDC <MDC 0 0.020 <MDC <MDC 0 0.035 <MDC <MDC 0 0.151 <MDC <MDC 0 0.10 11.39 (8/8) K-5, Paplham Farm 15.01 (2/2) 8.59(4/4) 0 (5.52-18.33) 3.2mi. NNW (11.68-18.33) (4.60-11.07) 0.048 <MDC --<MDC 0 0.030 <MDC --<MDC 0 ------0.14 0.89 (5/8) K-34,Struck 1.56 (2/2) 0.42 (3/4) 0 (0.25-1.60) 2.7N (1.52-1.60) (0.27-0.61) 0.10 8.72 (8/8) K-5, Paplham Farm 10.75 (2/2) 7.23 (4/4) 0 (4.14-12.90) 3.2mi. NNW (8.60-12.90) (3.97-9.27) 0.018 <MDC --<MDC 0 0.033 <MDC --<MDC 0 0.019 <MDC --<MDC 0 0.165 <MDC --<MDC 0 0.018 <MDC --<MDC 0 0.020 <MDC --<MDC 0 0.030 <MDC --<MDC 0 0.117 <MDC --<MDC 0 23 Table 4.5 Environmental Radiation Monitoring Program Summary. Kewaunee Nuclear Power Plant Docket No. 50-305 Name of Facility Location of Facility Kewaunee County, Wisconsin Reporting Period January-December, 2017 (County, State) Indicator Location with Highest Control Number Sample Type Type and Locations Annual Mean Locations Non-(Units) Number of MDCb Mean (F)0 Mean(F)" Mean (F)0 Routine Analyses" Range* Locationd Range Range* Results* Grass GB 24 0.10 9.52 (18/18) K-35, D. Ducat 20.83 (3/3) 15.45 (6/6) 0 (pCi/gwet) (5.69-27.36) 6.71mi. WNW (7.74-31.96) (7.74-31.96) Sr-89 24 0.270 <MDC --<MDC 0 Sr-90 24 0.213 <MDC --<MDC 0 GS 24 Be-7 0.14 3.26 (18/18) K-38, Sinkula Farm 4.20 (3/3) 2.48 (6/6) 0 (0.50-7.50) 2.4miWNW (3.10-6.36) (0.54-6.52) K-40 0.50 7.11 (18/18) K-35, D. Ducat 18.20 (3/3) 14.59 (6/6) 0 (3. 92-12.46) 6.71 mi.WNW (7.51-28.03) 7.00-28.03) Nb-95 0.038 <MDC --<MDC 0 Zr-95 0.055 <MDC --<MDC 0 Ru-103 0.035 <MDC -<MDC 0 Ru-106 0.272 <MDC --<MDC 0 Cs-134 0.033 <MDC --<MDC 0 Cs-137 0.038 <MDC --<MDC 0 Ce-141 0.049 <MDC --<MDC 0 Ce-144 0.243 <MDC --<MDC 0 Soil GA 14 4.6 10.04(10/10) K-3, Sigmund Farm 14.97 (2/2) 11.37(4/4) 0 (pCi/gdry) (6. 68-20. 68) 5.9mi N (6.89-23.04) (5.63-23.04) GB 14 2.0 27.37(10/10) K-5, Paplham Farm 30.38(2/2) 26.25(4/4) 0 (21.66-33.83) 3.2mi. NNW (26. 92-33. 83) (20.68-34.10) Sr-89 14 0.240 --<MDC 0 Sr-90 14 0.061 0.062(1/10) K-38, Sinkula Farm -0.062(1/2) <MDC 0 2.45mi. WNW GS 14 -Be-7 0.20 <MDC K-35, D. Ducat 0.88(1/2) 0.88(1/4) 0 6.71mi. WNW K-40 1.4 18.71(10/10) K-5, Paplham Farm 19.49 (2/2) 16.32(4/4) 0 (15.90-20.05) 3.2mi. NNW (19.39-19.58) (12.84-18.12) Nb-95 0.042 <MDC --<MDC 0 Zr-95 0.045 <MDC --<MDC 0 Ru-103 0.025 <MDC --<MDC 0 Ru-106 0.161 <MDC --<MDC 0 Cs-134 0.022 <MDC --<MDC 0 Cs-137 0.031 0.08(10/10) K-3, Siegmund Farm 0.12 (2/2) 0.10(4/4) 0 (0.05-0.14) 5.9N (0.12-0.12) (0.06-0.12) Ce-141 0.084 <MDC --<MDC 0 Ce-144 0.107 <MDC --<MDC 0 24 Table 4.5 Environmental Radiation Monitoring Program Summary. Name of Facility Location of Facility Sample Type Type and (Units) Number of Analyses* Surface Water GB(TR) 108 (pCi/L) GS 108 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 H-3 36 Sr-89 36 Sr-90 36 K-40 108 Fish (Flesh) GB 2 (pCi/gwet) GS 2 K-40 Mn-54 Fe-59 Co-58 Co-60 Cs-134 Cs-137 Fish (Bones) GB 2 (pCi/gwet) Sr-89 2 Sr-90 2 Kewaunee Nuclear Power Plant Docket No. 50-305 Kewaunee County, Wisconsin Reporting Period January-December, 2017 (County, State) Indicator Location with Highest Control Number Locations Annual Mean Locations Non-MDCb Mean (F)0 Mean (F)0 Mean (F)0 Routine Range0 Locationd Range0 Range0 Results" 1.2 4.2 (84/84) K-1 a, North Creek 10.0 (12/12) 1.4 (24/24) 0 (3.2-29.1) 0.62 N (3.2-29.1) (0.7-3.6) 6.3 <MDC --<MDC 0 11.5 <MDC --<MDC 0 6.0 <MDC --<MDC 0 6.2 <MDC --<MDC 0 17.0 <MDC --<MDC 0 6.6 <MDC --<MDC 0 6.8 <MDC --<MDC 0 6.3 <MDC --<MDC 0 11.5 <MDC --<MDC 0 184 411 (2/36) K-14b, Two Creeks Park 457(1/4) <MDC 0 (365-457) 2.6mi. S 1.3 <MDC --<MDC 0 0.8 <MDC --<MDC 0 -3.4 (84/84) K-1a, North Creek 9.3 (12/12) 1.2 (24/24) 0 0.87 (0.3-27.2) 0.62 N (4.5-27.2) (1.1-1.4) 0.5 3.61 (2/2) K-1d, Cond. Discharge 3.61 (2/2) None 0 (3.43-3.

78) 0.10 mi. E (3.43-3.

78) 0.5 2.87 (2/2) K-1d, Cond. Discharge 2.87 (2/2) None 0 (2.81-2.93) 0.10 mi. E (2.81-2.

93) 0.033 <MDC --None 0 0.126 <MDC --None 0 0.036 <MDC --None 0 0.015 <MDC --None 0 0.029 <MDC --None 0 -0.024 <MDC -None 0 0.5 1.83 (2/2) K-1 d, Cond. Discharge 1.83 (2/2) None 0 (0.60-3.05) 0.10 mi. E (0.60-3.05) 0.41 <MDC --None 0 0.19 (2/2) K-1d, Cond. Discharge 0.19 (2/2) 0 0.11 (0.18-0.20) 0.10 mi. E (0.18-0.20)

None 0 25 Table 4.5 Environmental Radiation Monitoring Program Summary. Kewaunee Nuclear Power Plant Docket No. 50-305 Name of Facility Location of Facility Kewaunee County, Wisconsin Reporting Period January-December, 2017 (County, State) Indicator Location with Highest Control Sample Type Type and Locations Annual Mean Locations (Units) Number of MDCb Mean (F)° Mean (F)0 Mean (F)0 Analyses* Range* Locationd Ranae* Range* Periphyton GB 14 0.10 3.96 (12/12) k-1b, Middle Creek 6.33 (2/2) 6.06 (212) (Algae) (0.87-6.24) 0.12 N (5.97-6.69) (5.11-7.01) (pCi/gwet) Sr-89 14 0.074 <MDC --<MDC Sr-90 14 0.038 <MDC --<MDC GS 14 Be-7 0.16 0.59 (10/12) K-9, Rostok Intake 0.90 (2/2) 0.90 (2/2) (0.16-1.13) 11.5 NNE (0.58-1.22) (0.58-1.22) K-40 0.5 3.37 (12/12) K-1b, Middle Creek 5.25 (2/2) 5.09 (2/2) (0.82-5.47) 0.12 N (5.02-5.47) (4.92-5.25) Mn-54 0.017 <MDC --<MDC Co-58 0.017 <MDC --<MDC Co-60 0.017 <MDC --<MDC Nb-95 0.019 <MDC --<MDC Zr-95 0.022 <MDC --<MDC Ru-103 0.020 <MDC --<MDC Ru-106 0.138 <MDC --<MDC Cs-134 0.021 <MDC --<MDC Cs-137 0.020 <MDC <MDC Ce-141 0.029 <MDC --<MDC Ce-144 0.127 <MDC --<MDC Sb-125 0.104 <MDC --<MDC Bottom GB 10 1.0 7.32 (8/8) K-9, Rostok Intake 22.43 (2/2) 22.43 (2/2) Sediments (5.37-9.67) 11.5 NNE (20.21-24.65) (20.21-24.65) (pCi/gdry) Sr-89 10 0.116 <MDC --<MDC Sr-90 10 0.044 <MDC --<MDC GS 10 K-40 0.5 4.95 (8/8) K-9, Rostok Intake 13.20 (2/2) 13.20 (2/2) (3.72-7.25) 11.5 NNE (11.35-15.05) (11.35-15.05) Co-58 0.027 <MDC --<MDC Co-60 0.022 <MDC --<MDC Cs-134 0.016 <MDC --<MDC Cs-137 0.031 <MDC --<MDC

• GA = gross alpha, GB = gross beta, GS = gamma spectroscopy, TR = total residue.

b MDC = Minimum Detectable Concentration based on a 4.66 sigma counting error for background sample. 0 Mean and range are based on detectable measurements only (i.e., >MDC) Fraction of detectable measurements at specified locations is indicated in parentheses (F). d Locations are specified by station code (Table 4.1) and distance (miles) and direction relative to reactor site.

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

26 Number Non-Routine Results* 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Table 4.6 Land Use Census 2 The following table lists an inventory of residence, gardens .: 500 ft and milk animals found nearest to the plant in each of the 10 meteorological sectors within a five mile radius of the Kewaunee Power Station. (Figure 4-1) Sector Township No. Residence Garden Milk Animals Distance From Location JD Plant (miles) A 24 X 1.12 A 12 X 3.71 A 1 X 4.62 B 24 X 1.01 K-10 B 18 X 2.12 B 18 X 2.70 K-34 R 26 X 0.96 K-11 R 23 X X 2.16 Q 23 X 1.27 Q 23 X X 1.53 K-27 p 26 X 1.35 p 27 X X 2.45 K-38 N 35 X 0.94 N 26 X 1.03 N 28 X 2.37 M 35 X 1.38 M 3 X 2.47 M 4 X 2.89 L 35 X 1.00 L 2 X 2.04 L 4 X 3.26 K 36 X (Note2) 0.91 K 15 X 3.40 J 11 X (Note 3) (Note 3) 2.72 Note 1. Bold Type denotes change from previous census. Note 2. There were no gardens located in Sector K within five miles of the Kewaunee Power Station. Note 3. There were no milk animals or gardens located in Sector J within five miles of the Kewaunee Power Station. No changes to the nearest residence or nearest milk animal locations were identified. The nearest garden in Sector L changed from 1 mile to 2.04 miles from the site. 27

5.0 REFERENCES

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

Eisenbud, M. 1963. Environmental Radioactivity, McGraw-Hill, New York, NewYork, pp. 213,275, and 276. Gold, S., H. W. Barkhau, B. Shlein, and B. Kahn, 1964 Measurement of Naturally Occurring Radionuclides in Air, in the Natural Radiation Environment, University of Chicago Press, Chicago,

Illinois, 369-382.

ATI Environmental, Inc., Midwest Laboratory. ---~2001 to 2016. Annual Report. Radiological Monitoring Program for the Kewaunee Power Station,

Kewaunee, Wisconsin, Final Report, Part II, Data Tabulations and Analysis, January -December 2000 -2016. ____ 1984 to 2000. (formerly Teledyne Brown Engineering Environmental

Services, Midwest Laboratory)

Annual Reports. Radiological Monitoring Program for the Kewaunee Power Station,

Kewaunee, Wisconsin, Final Report, Part II, Data Tabulations and Analysis, January -December 1983 through January -December 1999. ____ 1979 to 1983. (formerly Hazleton Environmental Sciences Corporation)

Annual Reports. Radiological Monitoring for the Kewaunee Power Station,

Kewaunee, Wisconsin, Final Report -Part II, Data Tabulations and Analysis, January-December, 1978 through 1982. ____ 1977 to 1978. (formerly NALCO Environmental Sciences Corporation)

Annual Reports. Radiological Monitoring for the Kewaunee Power Station,

Kewaunee, Wisconsin, Final Report -Part II, Data Tabulations and Analysis, January-December, 1976 to 1977. _____ 2017. Quality Manual, Rev. 4, 19 June 2017. _____ 2016. Quality Control Procedures Manual, Rev. 3, 07 March 2016. _____ 2012. Quality Assurance Program Manual, Rev. 3, 14 November 2012. ----~2009.

Quality Control Program, Rev. 2, 12 November 2009. Industrial BIO-TEST Laboratories, Inc. 1974. Annual Report. Pre-operational Radiological Monitoring Program for the Kewaunee Power Station.

Kewaunee, Wisconsin.

January -December 1973. Industrial BIO-TEST Laboratories, Inc. 1975. Semi-annual Report. Radiological Monitoring Program for the Kewaunee Power Station,

Kewaunee, Wisconsin.

Jan. -June, 1975. Kewaunee Power Station. 2013. Radiological Environmental Monitoring Manual (REMM). Revision 20, 31 October 2013 National Center for Radiological Health. 1968. Section 1. Milk Surveillance. Radiological Health Data Rep., December 9: 730-746. National Council on Radiation Protection and Measurements. 1975. Natural Radiation Background in the United States. NCRP Report No. 45. Solon, L. R., W. M. Lowder, A. Shambron, and H. Blatz. 1960. Investigations of Natural Environmental Radiation. Science. 131: 903-906. U.S. Environmental Protection Agency, 2007. RadNet, formerly Environmental Radiation Ambient Monitoring System, Gross Beta in Air (WI) 1981 -2000. Wilson, D.W., G. M. Ward, and J.E. Johnson, 1969. Environmental Contamination by Radioactive Materials. International Atomic Energy Agency, p. 125 American National Standards Institute/Health Physics Society (ANSI/HPS) N13.37 -2014, . Environmental Dosimetry -Criteria for System Design and Implementation. 28 ~*, A.Tl Environmental, Inc. 1'tl!i: J-\1 Midwest Laboratory NOTE: 700 Landwehr Road

• Northbrook, IL 60062-23 IO phone (847) 564-0700
• fax (847).564-4517 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 ofthe 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 Analysis Gamma Emitters Strontium-89 Strontium-90 Potassium-40 Gross alpha Gross beta Tritium Radium-226,-228 Plutonium lodine-131, lodine-129 Uranium-238, Nickel-63 Technetium-99 lron-55 Other Analyses Attachment A ACCEPTANCE CRITERIA FOR "SPIKED" SAMPLES A2 Ratio of lab result to known value. 0.8 to 1.2 0.8 to 1.2 0.8 to 1.2 0.8 to 1.2 0.5 to 1.5 0.8 to 1.2 0.8 to 1.2 0.7to 1.3 0.8 to 1.2 0.8 to 1.2 0.7to 1.3 0.8 to 1.2 0.8 to 1.2 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 7/10/2017 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). Al-1 TABLE A-2. Thermoluminescent Dosimetry, (TLD, CaS04: Dy Cards).

• mrem Lab Code Irradiation Delivered Reported b Performance 0 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 Passd Standard Deviation (Spike 1-30) 1.7 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*(10)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. A2-1 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 Kenna (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

• Lab Code b Date Analysis Laboratory results Known Control Ratio 2s, n=1 c Activity Limits d Acceptance Lab/Known W-010417 4/29/2016 Cs-134 38.2 +/- 8.1 36.2 29.0 -43.4 Pass 1.06 W-010417 4/29/2016 Cs-137 78.0 +/- 8.8 71.9 57.5 -86.3 Pass 1.08 SPW-306 1/4/2017 Ra-226 18.1 +/- 0.4 16.7 11.7 -21.7 Pass 1.08 SPW-32 1/6/2017 H-3 17,849 +/- 393 17,243 13,794 -20,692 Pass 1.04 SPW-46 1/9/2017 Gr. Alpha 20.0 +/- 0.4 20.1 10.0 -30.1 Pass 1.00 SPW-46 1/9/2017 Gr. Beta 29.0 +/- 0.3 28.9 23.1 -34.6 Pass 1.00 SPW-92 1/11/2017 H-3 18,095 +/- 397 17,243 13,794 -20,692 Pass 1.05 SPW-142 1/12/2017 Sr-90 39.4 +/- 2.3 36.6 29.2 -43.9 Pass 1.08 SPW-155 1/19/2017 H-3 17,974 +/- 400 17,243 13,794 -20,692 Pass 1.04 SPW-186 1/23/2017 H-3 17,383 +/- 366 17,243 13,794 -20,692 Pass 1.01 SPW-232 1/19/2017 H-3 17,542 +/- 368 17,243 13,794 -20,692 Pass 1.02 SPW-304 1/26/2017 H-3 17,782 +/- 400 17,243 13,794 -20,692 Pass 1.03 SPW-333 1/30/2017 H-3 17,910 +/- 406 17,243 13,794 -20,692 Pass 1.04 SPW-353 2/2/2017 U-234 47.8 +/- 2.3 41.7 29.2 -54.2 Pass 1.15 SPW-353 2/2/2017 U-238 50.4 +/- 2.4 41.7 29.2 -54.2 Pass 1.21 W-020217 4/29/2016 Cs-134 33.7 +/- 6.1 36.2 29.0 -41.2 Pass 0.93 W-020217 4/29/2016 Cs-137 78.4 +/- 7.3 71.9 57.5 -86.3 Pass 1.09 SPW-412 2/6/2017 Sr-90 36.2 +/- 2.4 36.6 29.2 -43.9 Pass 0.99 SPW-465 2/8/2017 H-3 17,573 +/- 396 17,243 13,794 -20,692 Pass 1.02 SPW-561 2/15/2017 H-3 17,358 +/- 395 17,243 13,794 -20,692 Pass 1.01 SPW-605 2/16/2017 H-3 17,820 +/- 401 17,243 13,794 -20,692 Pass 1.03 SPW-657 2/17/2017 H-3 17,614 +/- 376 17,243 13,794 -20,692 Pass 1.02 SPW-714 2/23/2017 H-3 17,662 +/- 400 17,243 13,794 -20,692 Pass 1.02 SPW-737 2/28/2017 H-3 17,196+/-395 17,243 13,794 -20,692 Pass 1.00 SPAP-740 2/28/2017 Gr. Beta 38.9 +/- 0.1 41.5 33.2 -49.8 Pass 0.94 SPAP-742 2/24/2017 Cs-134 1.05 +/- 0.60 0.98 0.8 -6.0 Pass 1.07 SPAP-742 2/24/2017 Cs-137 90.4 +/- 2.5 92.9 74.3 -111 Pass 0.97 SPW-746 2/28/2017 Sr-90 42.8 +/- 2.5 36.6 29.2 -43.9 Pass 1.17 SPW-748 2/28/2017 C-14 4,270 +/- 17 4,735 3,788 -5,682 Pass 0.90 SPW-750 2/28/2017 Ni-63 463 +/-4 400 280 -520 Pass 1.16 SPF-752 2/28/2017 Cs-134 1033 +/- 38 1090 872 -1308 Pass 0.95 SPF-752 2/28/2017 Cs-137 3071 +/- 61 2820 2,256 -3,384 Pass 1.09 SPW-781 3/1/2017 Ra-226 18.1 +/- 0.4 16.7 11.7 -21.7 Pass 1.08 SPW-783 3/1/2017 H-3 17,653 +/-400 17,243 13,794 -20,692 Pass 1.02 W-030517 4/29/2016 Cs-134 38.0 +/- 9.0 36.2 29.0 -43.4 Pass 1.05 W-030517 4/29/2016 Cs-137 80.9 +/- 9.2 71.9 57.5 -86.3 Pass 1.13 SPW-1010 3/14/2017 H-3 17,312 +/- 395 17,243 13,794 -20,692 Pass 1.00 SPW-1026 3/16/2017 Gr. Alpha 22.4 +/- 0.5 20.1 10.0 -30.1 Pass 1.11 SPW-1026 3/16/2017 Gr. Beta 29.2 +/- 0.3 28.9 23.1 -34.6 Pass 1.01 SPW-1092 3/21/2017 H-3 17,252 +/- 390 17,243 13,794 -20,692 Pass 1.00 SPW-1151 3/24/2017 H-3 17,009 +/- 388 17,243 13,794 -20,692 Pass 0.99 SPW-1163 3/28/2017 Sr-90 39.0 +/- 2.3 36.3 29.0 -43.5 Pass 1.08 SPW-1178 3/29/2017 Ra-228 15.1 +/- 1.9 16.0 11.2 -20.8 Pass 0.94 A3-1 TABLE A-3. In-House "Spiked" Samples Concentration
• Lab Code b Date Analysis Laboratory results Known Control Ratio 2s, n=1 ° Activity Limits d Acceptance Lab/Known SPW-1232 3/30/2017 H-3 17,150 +/- 390 17,243 13,794 -20,692 Pass 0.99 SPW-1246 3/31/2017 l-131(G) 33.0 +/- 7.3 36.6 29.3 -43.9 Pass 0.90 SPW-1246 3/31/2017 Cs-134 28.9 +/- 4.6 26.6 21.3 -31.9 Pass 1.09 SPW-1246 3/31/2017 Cs-137 80.6 +/- 8.2 70.4 56.3 -84.5 Pass 1.15 SPMl-1248 3/31/2017 l-131(G) 39.8 +/- 7.0 36.6 29.3 -43.9 Pass 1.09 SPMl-1248 3/31/2017 Cs-134 26.9 +/- 5.9 26.6 21.3 -31.9 Pass 1.01 SPMl-1248 3/31/2017 Cs-137 70.4 +/- 6.9 70.4 56.3 -84.5 Pass 1.00 SPMl-1248 3/31/2017 1-131 36.2 +/- 0.6 36.6 29.3 -43.9 Pass 0.99 SPW-1295 3/31/2017 Ra-226 17.9 +/- 0.4 16.7 11.7 -21.7 Pass 1.07 SPW-1304 4/4/2017 H-3 17,741 +/- 398 17,243 13,794 -20,692 Pass 1.03 SPW-1359 4/5/2017 1-131 44.3 +/- 0.5 47.6 38.1 -57.1 Pass 0.93 SPW-1378 4/7/2017 H-3 17,528 +/- 395 17,243 13,794 -20,692 Pass 1.02 SPW-1391 4/7/2017 Gr. Alpha 21.1 +/- 0.4 20.1 10.0 -30.1 Pass 1.05 SPW-1391 4/7/2017 Gr. Beta 27.8 +/- 0.3 28.2 22.6 -33.8 Pass 0.99 SPW-1480 4/12/2017 H-3 17,399 +/- 392 17,243 13,794 -20,692 Pass 1.01 W-041317 4/29/2016 Cs-134 34.6 +/- 5.6 36.2 29.0 -43.4 Pass 0.96 W-041317 4/29/2016 Cs-137 81.9 +/- 8.0 71.9 57.5 -86.3 Pass 1.14 SPW-1480 4/12/2017 H-3 17,399 +/- 392 17,243 13,794 -20,692 Pass 1.01 SPW-1575 4/18/2017 H-3 17,419 +/--393 17,243 13,794 -20,692 Pass 1.01 SPW-1626 4/20/2017 Sr-90 37.2 +/- 2.4 36.3 29.0 -43.5 Pass 1.02 SPW-1658 4/21/2017 H-3 17,194+/-391 17,243 13,794 -20,692 Pass 1.00 SPW-1776 4/26/2017 H-3 16,609 +/- 386 17,243 13,794 -20,692 Pass 0.96 SPW-1806 4/27/2017 H-3 17,203 +/- 390 17,243 13,794 -20,692 Pass 1.00 SPW-1937 5/3/2017 H-3 16,690 +/- 385 17,243 13,794 20,692 Pass 0.97 SPW-1971 5/5/2017 Sr-90 41.5+/-2.2 36.3 29.0 -43.5 Pass 1.14 SPW-2033 5/8/2017 H-3 16,780 +/- 386 17,243 13,794 20,692 Pass 0.97 SPW-2420 5/9/2017 Ra-226 16.3 +/- 0.5 16.7 11.7 -21.7 Pass 0.98 W-051517 4/29/2016 Cs-134 36.3 +/- 5.0 36.2 29.0 -43.4 Pass 1.00 W-051517 4/29/2016 Cs-137 68.9 +/- 6.6 71.9 57.5 -86.3 Pass 0.96 SPW-2284 5/22/2017 H-3 16,935 +/- 389 16,703 13,362 -20,044 Pass 1.01 SPW-2354 5/23/2017 H-3 17,006 +/- 390 16,700 13,360 -20,040 Pass 1.02 SPW-2891 5/23/2017 Ra-226 17.5+/-0.4 16.7 13.4 -20.1 Pass 1.05 SPW-2418 5/23/2017 Ra-228 14.0 +/- 1.8 16.0 11.2 -20.8 Pass 0.87 SPW-2439 5/25/2017 Ra-228 13.0 +/- 1.8 16.0 11.2 -20.8 Pass 0.81 SPMl-2378 5/24/2017 Sr-89 83.7 +/- 4.9 98.4 78.7 -118.1 Pass 0.85 SPMl-2378 5/24/2017 Sr-90 39.5 +/- 1.5 36.1 28.9 -43.4 Pass 1.09 SPW-2468 5/26/2017 H-3 17,065 +/- 391 16,692 13,354 -20,030 Pass 1.02 SPW-2848 5/26/2017 1-131 56.4 +/- 0.6 58.3 46.6 -69.9 Pass 0.97 SPW-2502 6/1/2017 H-3 17,596 +/- 396 16,677 13,342 -20,012 Pass 1.06 SPW-2659 6/5/2017 H-3 17,027 +/- 390 16,677 13,342 -20,012 Pass 1.02 SPW-2790 6/9/2017 H-3 17,101 +/- 392 17,101 13,681 -20,521 Pass 1.00 A3-2 TABLE A-3. In-House "Spiked" Samples Concentration
• Lab Code b Date Analysis Laboratory results Known Control Ratio 2s, n=1 c Activity Limits d Acceptance Lab/Known SPW-2798 6/12/2017 H-3 16,683 +/- 364 16,649 13,319 -19,979 Pass 1.00 SPW-2943 6/19/2017 Sr-90 39.2 +/- 2.3 36.1 28.9 -43.3 Pass 1.09 SPW-3509 6/15/2017 Ra-226 17.6 +/- 0.5 16.7 11.7 -21.7 Pass 1.05 W-061317 4/29/2016 Cs-134 35.0 +/- 6.2 36.2 29.0 -43.4 Pass 0.97 W-061317 4/29/2016 Cs-137 77.4 +/- 7.8 71.9 57.5 -86.3 Pass 1.08 SPW-3041 6/23/2017 H-3 16,419 +/- 378 16,620 13,296 -19,944 Pass 0.99 SPW-3511 6/23/2017 Ra-226 15.5 +/- 0.6 16.7 11.7 -21.7 Pass 0.93 SPW-3103 6/28/2017 H-3 16,507 +/- 380 16,507 13,206 -19,808 Pass 1.00 SPW-3117 6/29/2017 Tc-99 112.7+/-1.9 107.8 75.5 -140.1 Pass 1.05 SPW-3513 6/29/2017 Ra-226 17.8 +/- 0.5 16.7 11.7 -21.7 Pass 1.06 SPW-3188 7/3/2017 Sf-90 38.1 +/- 2.2 36.1 28.9 -43.3 Pass 1.06 SPW-3283 7/11/2017 H-3 16,057 +/- 347 16,649 13,319 -19,979 Pass 0.96 SPW-4054 7/11/2017 Ra-226 17.7 +/- 0.4 16.0 11.2 -20.8 Pass 1.11 SPW-3467 7/14/2017 Gr. Alpha 22.3 +/- 0.5 20.1 10.0 -30.1 Pass 1.11 SPW-3467 7/14/2017 Gr. Beta 29.1 +/- 0.3 28.2 22.6 -33.8 Pass 1.03 SPW-3449 7/15/2017 H-3 17,196 +/- 393 16,507 13,206 -19,808 Pass 1.04 SPW-3548 7/19/2017 H-3 16,764 +/- 386 16,507 13,206 -19,808 Pass 1.02 SPW-3728 7/24/2017 H-3 16,117 +/- 354 16,507 13,206 -19,808 Pass 0.98 SPW-3794 7/28/2017 H-3 16,645 +/- 384 16,507 13,206 -19,808 Pass 1.01 W-072817 4/29/2016 Cs-134 38.6 +/- 5.6 36.2 29.0 -43.4 Pass 1.07 W-072817 4/29/2016 Cs-137 76.5 +/- 7.6 71.9 57.5 -86.3 Pass 1.06 SPW-3905 8/3/2017 Gr. Alpha 22.3 +/- 0.5 20.1 10.0 -30.1 Pass 1.11 SPW-3905 8/3/2017 Gr. Beta 27.6 +/- 0.3 28.2 22.6 -33.8 Pass 0.98 SPW-4030 8/9/2017 H-3 17,636 +/- 403 16,507 13,206 -19,808 Pass 1.07 SPW-4086 8/14/2017 H-3 17,472 +/- 401 16,507 13,206 -19,808 Pass 1.06 SPW-4207 8/17/2017 H-3 17,013 +/- 393 16,507 13,206 -19,808 Pass 1.03 W-083017 4/29/2016 Cs-134 34.7 +/- 6.4 36.2 29.0 -43.4 Pass 0.96 W-083017 4/29/2016 Cs-137 78.2 +/- 6.7 71.9 57.5 -86.3 Pass 1.09 SPW-4241 8/19/2017 H-3 17,222 +/- 371 16,507 13,206 -19,808 Pass 1.04 SPW-4458 9/1/2017 Ra-226 14.1+/-1.8 16.7 11.7 -21.7 Pass 0.84 SPW-4466 9/6/2017 Sr-89 22.8 +/- 8.5 26.4 21.1 -31.7 Pass 0.86 SPW-4466 9/6/2017 Sr-90 32.5 +/- 2.1 33.8 27.0 -40.6 Pass 0.96 SPW-4512 9/8/2017 Gr. Alpha 19.2+/-0.4 20.1 10.1 -30.2 Pass 0.96 SPW-4512 9/8/2017 Gr. Beta 27.8 +/- 0.3 27.9 22.3 -33.5 Pass 0.99 SPW-4586 9/9/2017 H-3 16,586 +/- 362 16,507 13,206 -19,808 Pass 1.00 SPW-4720 9/16/2017 H-3 16,439 +/- 362 16,507 13,206 -19,808 Pass 1.00 SPW-4834 9/22/2017 H-3 16,238 +/- 378 16,507 13,206 -19,808 Pass 0.98 SPW-4935 9/27/2017 H-3 16,595 +/- 381 16,507 13,206 -19,808 Pass 1.01 SPW-4937 9/27/2017 Ra-228 5.7 +/- 0.9 5.8 4.1-7.5 Pass 0.98 W-092717 4/29/2016 Cs-134 36.0 +/- 5.9 36.2 29.0 -43.4 Pass 0.99 W-092717 4/29/2016 Cs-137 82.6 +/- 8.5 71.9 57.5 -86.3 Pass 1.15 SPW-5001 9/29/2017 H-3 16,446 +/- 358 16,507 13,206 -19,808 Pass 1.00 A3-3 TABLE A-3. In-House "Spiked" Samples Concentration
• Lab Code b Date Analysis Laboratory results Known Control Ratio 2s, n=1 ° Activity Limits d Acceptance Lab/Known SPW-5134 10/6/2017 H-3 16,128 +/- 373 16,507 13,206 -19,808 Pass 0.98 SPW-5274 10/12/2017 H-3 16,108 +/- 374 16,507 13,206 -19,808 Pass 0.98 W-101217S 10/12/2017 Fe-55 1,491 +/- 77 1,482 1,186 -1,778 Pass 1.01 SPW-5408 10/18/2017 Ni-63 203 +/- 3 199 139.1 -258.3 Pass 1.02 SPW-5430 10/19/2017 H-3 16,453 +/- 380 16,507 13,206 -19,808 Pass 1.00 W-102017 4/29/2016 Cs-134 31.3 +/-4.9 36.2 29.0 -43.4 Pass 0.86 W-102017 4/29/2016 Cs-137 80.4 +/- 6.9 71.9 57.5 -86.3 Pass 1.12 SPW-5674 10/25/2017 H-3 16,313 +/- 380 16,507 13,206 -19,808 Pass 0.99 SPW-5719 10/27/2017 H-3 16,113 +/- 350 16,507 13,206 -19,808 Pass 0.98 SPW-5730 10/31/2017 H-3 16,776 +/- 387 16,507 13,206 -19,808 Pass 1.02 SPW-5944 10/27/2017 Ra-226 16.4 +/- 0.5 16.7 11.7 -21.7 Pass 0.98 SPW-5915 11/9/2017 H-3 16,930 +/- 390 16,507 13,206 -19,808 Pass 1.03 SPW-5989 11/11/2017 H-3 16,084 +/- 352 16,507 13,206 -19,808 Pass 0.97 W-111417 4/29/2016 Cs-134 38.1 +/- 6.2 36.2 29.0 -43.4 Pass 1.05 W-111417 4/29/2016 Cs-137 74.0 +/- 7.5 71.9 57.5 -86.3 Pass 1.03 SPW-6121 11/16/2017 H-3 16,276 +/- 378 16,507 13,206 -19,808 Pass 0.99 SPW-6132 11/20/2017 H-3 15,897 +/- 374 16,507 13,206 -19,808 Pass 0.96 SPW-6249 11/30/2017 Ra-226 12.2 +/- 0.4 12.3 8.6 -16.0 Pass 1.00 SPW-6226 12/1/2017 H-3 16,164 +/- 378 16,507 13,206 -19,808 Pass 0.98 SPW-6318 1217/2017 H-3 15,779 +/- 372 16,507 13,206 -19,808 Pass 0.96 W-120817 4/29/2016 Cs-134 29.5 +/- 5.6 36.2 29.0 -43.4 Pass 0.81 W-120817 4/29/2016 Cs-137 78.8 +/- 9.6 71.9 57.5 -86.3 Pass 1.10 SPW-65 12/11/2017 Ra-226 12.5 +/- 0.4 12.3 8.6 -16.0 Pass 1.01 SPW-6437 12/13/2017 Gr. Alpha 19.6 +/- 0.4 20.1 10.1 -30.2 Pass 0.98 SPW-6437 12/13/2017 Gr. Beta 28.2 +/- 0.3 27.9 22.3 -33.5 Pass 1.01 SPW-6463 12/15/2017 H-3 15,560 +/- 372 16,507 13,206 -19,808 Pass 0.94
• 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.

• Control limits are listed in Attachment A of this report. 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
• Lab Code Sample Date Analysisb Laboratory results (4.66cr)

Acceptance Type LLD Activity° 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 SPV\/-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 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 1 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 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 ( pCilm\ 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. A4-1 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-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 1-131 0.32 0.03 +/- 0.18 1 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 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 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

• Liquid sample results are reported in pCi/Liter, air filters ( pCiim\ 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. A4-2 TABLE A-4. In-House "Blank" Samples Concentration

• Lab Code Sample Date Analysisb Laboratory results (4.66cr)

Acceptance Type LLD Activityc Criteria (4.66 cr) 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 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 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 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 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

• 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.

• Activity reported is a net activity result. A4-3 TABLE A-4. In-House "Blank" Samples Concentration
• Lab Code Sample Date Analysisb Laboratory results (4.66cr)

Acceptance Type LLD Activity0 Criteria (4.66 er) 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 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

• Liquid sample results are reported in pCi/Liter, air filters ( pCitm3>,

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

• 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 1/12/2017 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, 1 095 3/20/2017 H-3 1,571 +/- 137 1,595+/-138 1,583 +/- 175 Pass AS-1 TABLE A-5. In-House "Duplicate" Samples Concentration
• 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 AS-2 ______ _J TABLE A-5. In-House "Duplicate" Samples Concentration a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance SWf-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 AS-3 TABLE A-5. In-House "Duplicate" Samples Concentration
• 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 Ml-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 AS-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 O.Q15 +/- 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). AS-5 TABLEA-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 NAC 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 NAC 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 e 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 TABLEA-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-90i 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 NA0 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 NA0 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 TABLEA-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 MAW-4513 8/1/2017 Cs-134 10.3 +/- 0.3 11.5 8.1-15.0 MAW-4513 8/1/2017 Cs-137 17.2 +/- 0.5 16.3 11.4 -21.2 MAW-4513 8/1/2017 Co-57 12.7 +/- 0.4 12.1 8.5 -15.7 MAW-4513 8/1/2017 Co-60 10.6 +/- 0.3 10.7 7.5 -13.9 MAW-4513 8/1/2017 Mn-54 15.6 +/- 0.4 14.9 10.4-19.4 MAW-4513 8/1/2017 Zn-65 15.9 +/- 0.7 15.5 10.9 -20.2 MAW-4513 8/1/2017 H-3 255 +/- 9 258 181 -335 MAW-4513 8/1/2017 Fe-55 21.6 +/- 6.6 19.4 13.6 -25.2 MAW-4513 8/1/2017 Ni-63 -0.1 +/- 2.0 0.0 NAC MAW-4513 8/1/2017 Pu-238 0.590 +/- 0.080 0.603 0.422 -0.784 MAW-4513 8/1/2017 Pu-239/240 0.740 +/- 0.090 0.781 0.547 -1.015 MAW-4513 8/1/2017 Ra-226 1.000 +/- 0.100 0.858 0.601 -1.115 MAW-4513 8/1/2017 Sr-90 7.80 +/- 0.60 7.77 5.44 -10.10 MAW-4513 8/1/2017 Tc-99 6.70 +/- 0.40 6.73 4.71 -8.75 MAW-4513 8/1/2017 U-2344/233 0.94 +/- 0.06 1.01 0.71 -1.31 MAW-4513 8/1/2017 U-238 0.97 +/- 0.07 1.04 0.73 -1.35 MMP-4519h 8/1/2017 Am-241 0.0400 +/- 0.0100 0.0612 0.0428 -0.0796 MMP-4519 8/1/2017 Cs-134 0.90 +/- 0.10 1.00 0.70-1.30 MMP-4519 8/1/2017 Cs-137 0.90 +/- 0.10 0.82 0.57 -1.07 MMP-4519 8/1/2017 Co-57 0.01 +/- 0.01 0.00 NA C MMP-4519 8/1/2017 Co-60 0.70 +/- 0.10 0.68 0.48 -0.88 MMP-4519 8/1/2017 Mn-54 1.50 +/-0.10 1.30 0.91 -1.69 MMP-4519 8/1/2017 Zn-65 1.30 +/- 0.10 1.08 0.76 -1.40 MMP-4519 8/1/2017 Pu-238 0.0300 +/- 0.0100 0.0298 0.0209 -0.0387 MMP-4519 8/1/2017 Pu-239/240 0.0400 +/- 0.0200 0.0468 0.0328 -0.0608 MMP-4519 8/1/2017 Sr-90 0.800 +/- 0.100 0.801 0.561 -1.041 MMP-4519 8/1/2017 U-234/233 0.070 +/- 0.010 0.084 0.059 -0.109 MMP-4519 8/1/2017 U-238 0.090 +/- 0.010 0.087 0.061 -0.113 a 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). c MAPEP results are presented as the known values and expected laboratory precision (1 sigma, 1 determination) and control limits as defined by the MAPEP. A known value of "zero" indicates an analysis was included in the testing series as a "false positive". MAPEP does not provide control limits. Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Fail Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass d 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. 1 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)". MRAD Study Concentration

• Lab Code b Date Analysis Laboratory ERA Control Result Result Limits 0 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 1 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 ERS0-1116 h 3/20/2017 U-233/234 1,030 +/- 130 1,950 1,190-2,500 Fail ERS0-1116; 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 1 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)". MRAD Study Concentration

• 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-1120i 3/20/2017 Fe-55 1,400 +/- 403 984 587 -1,340 Fail ERW-1120 k 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 proQram 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 (veQetation). 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 siQma, 1 determination) and control limits as provided by ERA. d Fe-55 analysis result was outside the acceptable ranQe. RecountinA the sample disk for 1000 minutes resulted in 254 +/- 364 with an LLD calculation of< 342. Insufficient sample was available after performing other requ,ired analyses on the sample to quantify the activity with an uncertainty less than the activity.

• 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 lab result to known. 1 Analysis result for Plutonium-239/240 was below the lower limit of acceptance. 9 Samples were reanalyzed in duplicate with acceptable results for each. OriAinal 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. J Fe-55 analysis result was outside acceptable range. k Result of recountinA was acceptable. No reason for intial failure determined. A7-2 APPENDIX B. DATA REPORTING CONVENTIONS Data Reporting Conventions 1.0. All activities, except gross alpha and gross beta, are decay corrected to collection time or the end of the collection period. 2.0. Single Measurements Each single measurement is reported as follows: x +/- s where: x = value of the measurement; s = 2cr 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 3.2. 3.3. Reported result: x +/- s; where x = (1/2) (x1 + x2) ands= (1/2) J s12 + s; Individual results: < L1 , < L2 Individual results: x +/- s, < L Reported result: < L, where L = lower of L1 and L2 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 exar12ple, 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 ... xn are defined as follows: --~ s-\J~ 4.2 Values below the highest lower limit of detection are not included in the average. 4.3 If all values in the averaging group are less than the highest LLD, the highest LLD is reported. 4.4 If all but one of the values are less than the highest LLD, the single value x and associated two sigma error is reported. 4.5 In rounding off, the following rules are followed: 4.5.1. If the number following those to be retained is less than 5, the number is dropped, and the retained numbers are kept unchanged. As an example, 11.443 is rounded off to 11.44. 4.5.2. If the number following those to be retained is equal to or greater than 5, the number is dropped and the last retained number is raised by 1. As an example, 11.445 is rounded off to 11.45. B-1 APPENDIX C Table C-1. Maximum permissible concentrations of radioactivity in air and water above natural a background in unrestricted areas . Air (pCi/m 3) Water (pCi/L) -3 Gross alpha 1 X 10 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 1 X 10 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 Dominion Energy 2017 Annual Radiological EnvironD1ental Operating Report Kewaunee Power Station Part II, Data Tabulations And Analyses Dominion Energy Kewaunee, Inc. ATI Environmental, Inc. Ml Midwest Laboratory 700 Landwehr Road

• Northbrook, IL 60062-2310 phone (847) 561-0700
• fax (847) 564-1517 Approved: REPORT TO DOMINION NUCLEAR RADIOLOGICAL MONITORING PROGRAM FOR THE KEWAUNEE POWER STATION KEWAUNEE, WISCONSIN ANNUAL REPORT -PART II DATA TABULATIONS AND ANALYSES January 1 to December 31, 2017 Prepared and submitted by ATI ENVIRONMENTAL

, Inc. Midwest Laboratory Project No. 8002 annon Manager -diological Protection and Chemistry , KPS This Page Intentionally Left Blank PREFACE Staff members of ATI Environmental , Inc., Midwest Laboratory were responsible for the acquisition of data presented in this report. Samples were collected by personnel of ATI Environmental , Inc., Midwest Laboratory and the Kewaunee Power Station. ii This Page Intentionally Left Blank TABLE OF CONTENTS Section Page 1.0 2.0 3.0 Preface.............. ................................. .................... ......................... ........................................................ ii List of Figures................................... ............................................. ............................ .................... .......... iv List of Tables................................. ...................................................................... .............. .............. ........ v INTRODUCTION ............................. ....................................... ............................................................... .. GRAPHS OF DATA TRENDS ....................................... ..................................... ......................... ........... . DATA TABULATIONS .................. .................................................................... ........... ............... ............ . iii 1 7 20 No. 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 LIST OF FIGURES Caption Sampling locations , Kewaunee Power Station Airborne particulates , weekly averages; gross beta, Airborne particulates, gross beta, monthly averages, Well water, gross alpha in total residue, Well water, gross beta in total residue, Milk, strontium-90 activity, Surface water, gross beta (total residue), Surface water, tritium activity, iv Location K-1f Location K-2 Location K-8 Location K-31 Location K-41 Location K-43 Location K-1f Location K-2 Location K-8 Location K-31 Location K-41 Location K-43 Location K-1g Location K-1 h Location K-1g Location K-1 h Location K-10 Location K-11 Location K-13 Location K-38 Location K-3 Location K-5 Location K-34 Location K-35 Location K-38 Location K-39 Location K-39 Location K-1a Location K-1b Location K-1d Location K-1e Location K-1 k Location K-9 Location K-14a Location K-1d Location K-14a Location K-9 Page 2 8 8 8 9 9 9 10 10 10 11 11 11 12 12 13 13 13 13 14 14 15 15 15 15 16 16 16 17 17 17 17 18 18 18 19 19 19 No. 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 LIST OF TABLES Sampling locations , Kewaunee Power Station Type and frequency of collection Sample codes used in Table 2 Title Airborne particulates and iodine, analysis for gross beta and iodine-131 Location K-1f Location K-2 Location K-8 Location K-31 Location K-41 Location K-43 Airborne particulates , gross beta, monthly averages, minima and maxima Airborne particulates , quarterly composites of weekly samples, analysis for gamma-emitting isotopes Ambient gamma radiation (TLD), quarterly exposure Precipitation , collected at Location K-11, analysis for tritium Milk, analysis for iodine-131 and gamma emitting isotopes Milk, analysis for strontium-89 , strontium-90 , calcium and potassium-40 Well water, analysis for gross alpha, gross beta, tritium, strontium-89 , strontium-90, potassium-40, and gamma-emitting isotopes. Well water, analysis for gross beta, tritium, potassium -40 and gamma-emitting isotopes Domestic meat, analysis of flesh for gross alpha, gross beta, and gamma-emitting isotopes Eggs, analysis for gross beta, strontium-89 , strontium -90, and gamma-emitting isotopes Vegetables , analysis for gross beta, strontium -89, strontium -90, and gamma-emitting isotopes Cattlefeed , analysis for gross beta, strontium -89, strontium -90, and gamma-emitting isotopes Grass, analysis for gross beta, strontium-89 , strontium -90, and gamma-emitting isotopes Soil, analysis for gross alpha, gross beta, strontium -89, strontium-90 and gamma-emitting isotopes Surface water, analysis for gross beta, potassium-40, and gamma-emitting isotopes Surface water, analysis for tritium, strontium -89, and strontium -90 Fish samples, analysis for gross beta, strontium-89 , strontium-90, and emitting isotopes Slime, analysis for gross beta, strontium-89 , strontium-90 and gamma emitting isotopes Bottom sediments , analysis for gross beta, strontium -89, strontium-90, and gammaemitting isotopes V Pae 3 5 6 21 22 23 24 25 26 27 29 32 33 34 38 41 42 44 45 46 48 50 53 56 74 76 77 79

1.0 INTRODUCTION

The following constitutes Part II of the final report for the 2017 Radiological Monitoring Program conducted at the Kewaunee Power Station (KPS), Kewaunee, Wisconsin . Included are tabulations of data for all samples collected in 2017 along with graphs of data trends. A summary and interpretation of the data presented here are published in Part I of the 2017 Annual Report on the Radiological Monitoring Program for the Kewaunee Power Station. 1 N "Tl <0' C ro en Ill 3 '2-5* (0 0 £ g* :, !" s ::E Ill C :, (1) (1) "U i -, en iii g :, Table 1. Sampling locations, Kewaunee Power Station. Distance (miles)b Code Type8 and Sector Location K-1 Onsite K-1a 0.62 N North Creek K-1b 0.12 N Middle Creek K-1c 0.10 N 500' north of condenser discharge K-1d 0.10 E Condenser discharge K-1e 0.12 S South Creek K-1f 0.12 S Meteorological Tower K-1g 0.06W South Well K-1h 0.12 NW North Well K-1j 0.10 S 500' south of condenser discharge K-1k 0.60 SW Drainage Pond, south of plant K-11 0.13 N ISFSI Southeast K-1m 0.15 N ISFSI East K-1n 0.16 N ISFSI Northeast K-1o 0.16 N ISFSI North K-1p 0.17 N ISFSI Northwest K-1q 0.16 N ISFSI West K-1 r 0.13 N ISFSI West K-1s I 0.12 N ISFSI Southwest K-2 C 8.91 NNE WPS Operations Building in Kewaunee K-3 C 5.9 N Lyle and John Siegmund Farm, N2815 Hy 42, Kewaunee K-5 3.2 NNW Ed Paplham Farm, E4160 Old Settlers Rd, Kewaunee K-8 C 4.85WSW St. Isadore the Farmer Church, 18424 Tisch Mills Rd, Tisch Mills K-9 C 11.5 NNE Green Bay Municipal Pumping Station, six miles east of Green Bay (sample source is Lake Michigan water from Rostek Intake, two miles north of Kewaunee) . K-10 1.35 NNE Turner Farm, Kewaunee site K-11 I 0.96 NW Louise Ihlenfeld Farm, N879 Hy 42, Kewaunee K-13 C 3.0 SSW Rand's General Store, Two Creeks K-14 2.6 S Two Creeks Park, 2.6 miles south of site K-15 C 9.25 NW Gas Substation , 1.5 miles north of Stangelville K-17 4.0W Klimesh's Farm, N885 Tk B, Kewaunee K-23a 0.5W 0.5 miles west of plant, Kewaunee site K-23b 0.6 N 0.6 miles north of plant, Kewaunee site K-24 5.4 N Fictum Farm, N2653 Hy 42, Kewaunee K-25 I 1.9 SW Wotachek Farm, 3968 E. Cty Tk BB, Two Rivers K-26 C 9.1 SSW Wilfert Farms (9.1 miles south of "BB") 3 Table 1. Sampling locations, Kewaunee Power Station (continued) . Distance (miles)b Code Type8 and Sector Location K-27 1.53 NW Schleis Farm, E4298 Sandy Bay Rd, Kewaunee K-29 5.34W Kunesh Farm, E3873 Cty Tk G, Kewaunee K-30 0.8 N End of site boundary K-31 C 6.35 NNW E. Krok Substation , Krok Road K-32 C 7.8 N Piggly Wiggly, 931 Marquette Dr., Kewaunee K-34 I 2.7 N Leon and Vicki Struck, N1549 Lakeshore Dr., Kewaunee K-35 C 6.71 mi. WNW Duane Ducat, N1215 Sleepy Hollow Rd., Kewaunee K-36 8.0 mi. NNE Lafond's Fish market, 216 Milwaukee , Kewaunee K-38 2.45 mi. WNW Dave Sinkula Farm, N890 Town Hall Road, Kewaunee K-39 I 3.46 mi. N Francis Wojta, N1859 Lakeshore Dr., Kewaunee K-41 C 22 NW Point Beach-EOF , 3060 Voyager Dr. , Green Bay K-42 C 28.1 W Lamers Dairy Products obtained from Green Bay markets. K-43 2.71 SSW Gary Maigatter Property, 17333 Hwy 42, Two Rivers K-44 2.63 SW Gerald Schleis Property, 4728 Schleis Rd., Two Rivers a I = indicator

C = control.

b Distances are measured from reactor stack. 4 Table 2. Tvoe and reauencv o collection. Location Weekly K-1a K-1b K-1c K-1d K-1e K-1f AP", Al K-1g, K-1h K-1i K-1k K-11 throuqh K-1s K-2 AP9, Al K-3, K-5 K-8 APg, Al K-9 K-10, K-13 K-11 K-14 K-15, K-17 K-23a, b K-24 K-25 K-26 K-27 K-29 K-30 K-31 APg, Al K-32 K-34, K-35 K-36 K-38 K-39 K-41 APg, Al K-42 K-43 AP", Al K-44

• Three times a year, second, third and fourth quarters.
• Collected in May and November. ' Monthly November

-April; semimonthly MayOctober. d First quarter (January, February or March) only. 'Alternate , if milk is not available . 1 Second and third quarters. Monthly SW SW SW SW SW Ml C SW' PR sw" Ml C Ml C Ml C Ml' Ml C 5 Quarterly Semiannuallv Annually SL1 GR" SL1 BS* Fl* SL 1 BS* SL1 GR" TLO so WW BS* SL' TLO TLO GR" TLO so CFd TLO SL' BS* WW WW SL' BS* TLO GRN/GLV' EG OM TLO VE/GLV' TLO OM TLO TLO EG OM GR' so CFd Fl aj GR' WW so CFd GR' TLO so CFd TLO TLO g Frequency may be increased dependent on dust loading. "Two samples are collected , North (K-14a) and South (K-14b) ofTwo Creeks Road. 1 Two samples, raw and tap water. J Collected at K-36 if K-1 d is unavailable Table 3. Sample Codes: Code Al AP BS CF DM EG Fl GLV GRN GR Ml PR SL so SW TLD VE WW Description Airborne Iodine Airborne particulates Bottom sediments Cattle feed Domestic Meat Eggs Fish Green Leafy Vegetables Grain Grass Milk Precipitation Slime Soil Surface water Thermoluminescent Dosimeter Vegetables Well water 6 GRAPHS OF DATA TRENDS Note: Conventions used in trending data. The following conventions should be used in the interpretation of the graphs of data trends: 1. Both solid and open data points may be used in the graphs. A solid point indicates an activity, an open point, a minimum dectable concentrat ion (MOC) value. 2. Data points are connected by a solid line. A break in the plot indicates missing data. 7 0.100 0.080 0.060 pCi/m3 0.040 I\ 0.020 '\/ \ 0.000 0.100 0.080 0.060 pCi/m3 0.040 \ " 0-.. 0.020 N\ r\ 0.000 .::.-"\ 0.100 0.080 0.060 pCi/m3 0.040 I\ 0.020 ~\ \ -'I r-r Air Particulates -Gross Beta KPS I\ . I\ ) I /\ I --..,-V"' .,......, /"-... ".... v\l V N " \ l) ~,. " Figure 2. Location K-1f (weekly samples, 2017). ;\ "/~ I * .......-'I I A/\ I V \/ CO' /~ -/ '1 \ j . Figure 3. Location K-2 (weekly samples, 2017). /\ 0-_ I 1\ I v\!\ I

• r ___.,. ',... /\v-/ \j \~ Figure 4. Location K-8 (weekly samples, 2017). 8 0.100 0.080 0.060 pCi/m3 0.040 Air Particulates

-Gross Beta (\ N\ /'-.-. " (\ I\ IA r"\ I r-v\ / V \ ,,,-,/ 0.020 \/ -A .....-"" / -.-.. \) 0.000 0.100 0.080 0.060 pCi/m3 0.040 0.020 0.000 0.100 0.080 0.060 pCi/m3 0.040 0.020 0.000 ~\ \/ ",,/ /\ V \ r---.. A \V . '" Figure 5. Location K-31 (weekly samples, 2017).

• I\ I\ /\ I A I ' . /\ / V V " /"'-. I/"-_/~ A/-" r...--' ... 'J \ ) Figure 6. Location K-41 (weekly samples, 2017).
• I\ I I\ . /"""', I A/\ / 'y \/ v "v IV '\j . \ l) Figure 7. Location K-43 (weekly samples, 2017). 9 KPS 0.100 0.080 0.060 pCi/m3 h \ 0.040 0.020 0.000 2013 0.100 0.080 0.060 pCitm3 \ 0.040 vvv Air Particulates

-Gross Beta I " .-" I \_. A 11\ /v ~--1 \_J '---/ I 2014 2015 2016 Figure 8. Location K-1 f (monthly averages, 2013-2017). I * , 0.020 ) " . / ,_.I\ tV . 0.000 2013 0.100 0.080 0.060 pCilm3 /\ \ 0.040

• V "V "IVV ~/ "'-/ \J 2014 2015 2016 Figure 9. Location K-2 (monthly averages, 2013-2017). " KPS
• I /\ /V 2017 /" i----...

.,A../ y-.-/ 2017 " 0.020 \....,_A \ . "' I -I \ /\I I"'. ~I '-... /'-I' 0.000 2013 V'-,/ ~v . 2014 2015 2016 Figure 10. Location K-43 (monthly averages, 2013-2017) . 10 2017 0.100 0.080 0.060 pCi/m3 0.040 [\ 0.020 0.000 2013 0.100 0.080 0.060 pCi/m3 -\ 0.040 \ Air Particulates -Gross Beta KPS J.. /I'. 1,, I A )J \ /\/ \ . I \ w V './VV "-_/ V '--_/ Y"° 'vJ 2014 2015 2016 2017 Figure 11. Location K-8 (monthly averages, 2013-2017). , 0.020 -j ft. .11/\ Al \ /\ "'"" /V" 0.000 2013 0.100 0.080 0.040 I\ 0.020 0.000 2013 \ ...._, V '-./ '\--'V \___../ 2014 2015 2016 2017 Figure 12. Location K-31 (monthly averages, 2013-2017) . . Jr-... ~" -j ft. I-/\ /V \ {' ""'-/\I y --.I ._,,, V -..__,,,, ... 2014 2015 2016 2017 Figure 13. Location K-41 (monthly averages, 2013-2017). 11 Well Water -Gross Alpha KPS 6+--------+--------+---------+--------+---------i pCi/L 4+-----~--

---

+---------+-

-,.-,~--------------1 0+--------+----------+--------+-------+--

---

~ 2013 2014 2015 2016 2017 Figure 14. Location K-1g. Total Residue. Quarterly collection. 6+--------+--------+---------+---------+-------

pCi/L 4+-----~---------+-----------~-----+------- 0+--------+--------+-------+------- -----~ 2013 2014 2015 2016 2017 Figure 15. Location K-1 h. Total Residue. Quarterly collection . 12 Well Water -Gross Beta pCi/L 6+-----------<----

---

+---------+--------+---------<

0-t----------------+--------+--------+-------~ 2013 2014 2015 2016 2017 Figure 16. Location K-1 g. Total Residue. Quarterly collection . pCi/L 6-t------+-+--f----------+--------+------- -+---------1 0+----------,1-----------+--------+--------+---------' 2013 2014 2015 2016 2017 Figure 17. Location K-1h. Total Residue. Quarterly collection . pCi/L 6+--------f----------+--------+--------+---------1 0-t-----------------+--------+--------+-------~ 2013 10 8 pCi/L 6 4 2 0 2013 A 2014 2015 2016 2017 Figure 18. Location K-10. Total Residue. Quarterly collection . J\ /\ ____........__ l--' \_ 2014 2015 2016 2017 Figure 19. Location K-11. Total Residue. Quarterly collection . Note: An open data point indicates activity less than the minimum detectable Concentration (MDC). 13 KPS 10 8 pCi/L 6 4 2 0 2013 2014 Well Water -Gross Beta --.,-----2015 2016 2017 Figure 20. Location K-13. Total Residue. Quarterly collection. 35 i================F===============i:===============i================i=================i : 25 -1====================~==================1'===================*=:::::::::iE\=:=============I=================~ 20 15 -1====================~==================1'===================*==1=-=== ~========= =I=================~ 10 5 0 2013 2014 2015 2016 2017 Figure 21. Location K-38. Total Residue. Quarterly collection . Note: An open data point indicates activity less than the minimum detectable Concentration (MDC). 14 KPS Milk-Strontium ::! u 1.5 +----------+----------+-------+--------+----

---

, C. 0. 5 +----.c.._-'---+----

--=--.2¥--f'---:..___::_ _ __::_::....:,,,,,,::;_ +-___;'--_::_- ---'IS---!----'-- --¥----"'-~ 0.0 +----------+----------+-------+--------+-------~ 2013 2014 2015 2016 2017 Figure 22. Milk samples. Location K-3. 3.0 ~------~--------,-------~--------r--------, 2.5 +--------+---------1--------+---------+--------I 0.5 _j_~~:__jC.Ll4--~~~L~ ~~~~=:!....._:>!__~0.::::::::::~,,£:..=.._;l,Cf__!:::::!_~~~ 0.0 +---------+---------1--------+--------+------~ 2013 2014 2015 2016 2017 Figure 23. Milk samples. Location K-5. 3.0 ~------~------~-------~------~------~ -::! 2.5 +--------+-----

---

+-------+--------+----

---

, G c. 2.0 +---------+---------+-------+---------+--------<

1.5 +--------+---------+-------+----------+----

---

l 1.0 -t",----1t------+-

---+---------+---- ---+---------+--- -+1~---< 0.0 +----------+---------!--

---

+--------+-------~

2013 2014 2015 2016 2017 Figure 24. Milk samples. Location K-34. -::! 'd_ 2.0 +---------+---------1--------+--------+--------1 0.0 +---------+---------+--------+--------+------~ 2013 2014 2015 2016 2017 Figure 25. Milk samples. Location K-35. 15 KPS Milk -Strontium-90 3.0 ~------~------~------~-------,---------, 2.5 +--------+--------+--------+--------+---------I 2.0 +--------+--------+---------+--------+----------1 a a. 1.0 +-"Or-f-.-----Jt-- t+-P<c.,,,_+-=-" '-+--f'tc---+-r--"f-\--

---

+------,,---,--,------j---------1 0.5 +--------=-___.c.--+----

lt---~'-4-----'----'--- --+-'----' ¥--__:__-___;--+--------' ---I 0.0 +--------+---------+---------+--------+-------~ 2013 2014 2015 2016 2017 Figure 26. Milk samples. Location K-38. 3 2.5 2 1.5 0.5 0 2013 2014 2015 2016 2017 Figure 27. Milk samples. Location K-39. 2.0 +---------+---------1--------+----- ---+--------i a a. 1.5 +---------+--------+--------+--------+---

---

j 0.0 +--------+--------+--------+--

---

+----

---2013 2014 2015 2016 2017 Figure 28. Milk samples. Location K-42. 16 KPS pCi/L 80 70 60 50 40 30 20 10 \ \

• 0 2013 pCi/L Surface Water -Gross Beta I I I I 1 . /\ . r I ,.,,-., r .._ I *-" '\ I \ Jr -./ '\ /",. -2014 2015 2016 Figure 29. Surface water. North Creek, Onsite (K-1 a). 1 I I I I I I I T I I T ,J I V', . / -' ..... A. .,, -2017 10 +--------+----

1-+------+---------+------ -+1-+------------i 0+--------+-----------<--------+---------+-------~ 2013 20.0 pCi/L 10.0 '.-.-0.0 2013 2014 2015 Figure 30. Surface water. Middle Creek, Onsite (K-1 b). ----....; / . -2014 2015 2016 2017 . . . .--~ -... . 2016 2017 Figure 31. Surface water. Lake Michigan, condenser discharge, Onsite (K-1d). 40 30 pCi/L 20 10 -I -.,"y--J 0 2013

• 2014 * \ A .. \ +-,/ y * ----... 2015 Figure 32. Surface water. South Creek, Onsite (K-1 e). 17 .
• A. . . -J --.,-yY 'I 2016 2017 KPS Surface Water-Gross Beta 30.0 +-------+-------+----------,f---------+-----------i pCi/L 20.0 +------;---t-------+----

-Hf---t--------+----------i 0.0 +--------+-------+-------+--------+------'------' 2013 20 pCi/L 10 -0 2013 pCi/L .Ac 2014 2015 2016 2017 Figure 33. Surface water. School Forest Pond (K-1 k). ...... -~-............. ... ..r ,...... -~ ... --T 2014 2015 2016 2017 Figure 34. Surface water (raw). Lake Michigan, Rostok Intake (K-9) 0-+-"-------+----~--------+--------+-----~ 2013 2014 2015 2016 2017 Figure 35. Surface water. Lake Michigan, Two Creeks Park (K-14a). Note: An open data point indicates activity less than the minimum detectable concentration (MDC). 18 l KPS Surface Water -Tritium KPS 5000 ....14000 ""' u C. 3000 2000 1000 I I 0 2013 2014 2015 2016 2017 Figur e 36. Surface water. Lake Michigan, condenser discharge , K-1d. Quarterly collection. 1000 900 S 800 C..) a.700 600 500 400 300 '\ \ 200 '\ -100 2013 2014 2015 2016 2017 Figur e 37. Surface water. Lake Michigan, Two Creeks Park, K-14a. Quarterly collection . 1000 900 S 800 C..) a. 700 600 500 400 300 200 100 2013 2014 2015 2016 2017 Figu re 38. Surface water. Lake Michigan, Rostek Intake, K-9. Quarterly collection. 19 KPS DATA TABULATIONS 20 KPS Table 4. Airborne particulates and charcoal canisters , analyses for gross beta and iodine-131

8. Location:

K-1f Units: pCi/m3 Collection

Continuous

, weekly exchange. Date Volume Date Volume Collected (m3) Gross Beta Collected (m3) Reguired LLD 0.010 Reguired LLD 01-10-17 302 0.023 +/- 0.004 07-04-17 307 01-17-17 303 0.036 +/- 0.005 07-11-17 298 01-24-17 302 0.027 +/- 0.004 07-18-17 302 01-31-17 315 0.012 +/- 0.004 07-25-17 303 08-01-17 302 02-07-17 295 0.026 +/- 0.004 02-14-17 299 0.026 +/- 0.004 08-08-17 302 02-21-17 300 0.021 +/- 0.004 08-15-17 302 02-28-17 307 0.020 +/- 0.004 08-22-17 302 08-29-17 306 03-07-17 298 0.018 +/- 0.004 03-14-17 301 0.021 +/- 0.004 09-05-17 298 03-21-17 302 0.023 +/- 0.004 09-12-17 305 03-28-17 303 0.015 +/- 0.004 09-19-17 302 09-26-17 302 10-03-17 303 1st Quarter Mean +/- s.d. 0.022 +/- 0.006 3rd Quarter Mean +/- s.d. 04-04-17 305 0.015 +/- 0.004 10-10-17 302 04-11-17 300 0.014 +/- 0.004 10-17-17 303 04-18-17 302 0.018 +/- 0.004 10-24-17 302 04-25-17 305 0.012 +/- 0.004 10-31-17 304 05-02-17 305 0.011 +/- 0.004 11-07-17 303 05-09-17 297 0.017 +/- 0.004 11-14-17 300 05-16-17 303 0.014 +/- 0.003 11-21-17 300 05-23-17 301 0.017 +/- 0.004 11-28-17 303 05-30-17 303 0.015 +/- 0.004 12-05-17 302 06-06-17 302 0.014 +/- 0.004 12-12-17 304 06-13-17 302 0.015 +/- 0.004 12-19-17 302 06-20-17 303 0.013 +/- 0.004 12-26-17 302 06-27-17 302 0.010 +/- 0.003 01-02-18 303 2nd Quarter Mean +/- s.d. 0.014 +/- 0.002 4th Quarter Mean +/- s.d. Cumulative Average a lodine-131 concentrations are< 0.03 pCi/m3 unless otherwise noted. 21 Gross Beta 0.010 0.014 +/- 0.003 0.018 +/- 0.004 0.008 +/- 0.004 0.015 +/- 0.004 0.025 +/- 0.004 0.017 +/- 0.004 0.020 +/- 0.004 0.024 +/- 0.004 0.021 +/- 0.004 0.017 +/- 0.004 0.013 +/- 0.004 0.030 +/- 0.005 0.038 +/- 0.005 0.024 +/- 0.004 0.020 +/- 0.008 0.025 +/- 0.004 0.017 +/- 0.004 0.031 +/- 0.004 0.009 +/- 0.004 0.014 +/- 0.004 0.040 +/- 0.005 0.029 +/- 0.004 0.027 +/- 0.004 0.030 +/- 0.005 0.022 +/- 0.004 0.030 +/- 0.005 0.027 +/- 0.004 0.031 +/- 0.005 0.026 +/- 0.008 0.021 KPS Table 5. Airborne particulates and charcoal canisters , analyses for gross beta and iodine-131 a_ Location: K-2 Units: pCi/m3 Collection: Continuous , weekly exchange. Date Volume Date Volume Collected (m3) Gross Beta Collected (m3) Gross Beta Reguired LLD 0.010 Reguired LLD 0.010 01-10-17 304 0.023 +/- 0.004 07-04-17 307 0.012 +/- 0.003 01-17-17 293 0.035 +/- 0.005 07-11-17 298 0.016 +/- 0.004 01-24-17 302 0.024 +/- 0.004 07-18-17 301 0.013 +/- 0.004 01-31-17 315 0.015 +/- 0.004 07-25-17 303 0.020 +/- 0.004 08-01-17 302 0.017 +/- 0.004 02-07-17 295 0.026 +/- 0.004 02-14-17 299 0.026 +/- 0.004 08-08-17 302 0.016 +/- 0.004 02-21-17 306 0.019 +/- 0.004 08-15-17 302 0.021 +/- 0.004 02-28-17 302 0.020 +/- 0.004 08-22-17 303 0.023 +/- 0.004 08-29-17 306 0.024 +/- 0.004 03-07-17 305 0.018 +/- 0.004 03-14-17 301 0.022 +/- 0.004 09-05-17 297 0.016 +/- 0.004 03-21-17 300 0.021 +/- 0.004 09-12-17 303 0.013 +/- 0.004 03-28-17 303 0.016 +/- 0.004 09-19-17 302 0.028 +/- 0.004 09-26-17 302 0.037 +/- 0.005 10-03-17 308 0.020 +/- 0.004 1st Quarter Mean +/- s.d. 0.022 +/- 0.005 3rd Quarter Mean +/- s.d. 0.020 +/- 0.007 04-04-17 299 0.014 +/- 0.004 10-10-17 304 0.024 +/- 0.004 04-11-17 308 0.012 +/- 0.003 10-17-17 296 0.018 +/- 0.004 04-18-17 293 0.017 +/- 0.004 10-24-17 309 0.030 +/- 0.004 04-25-17 308 0.013 +/- 0.004 10-31-17 298 0.007 +/- 0.004 05-02-17 305 0.009 +/- 0.004 11-07-17 304 0.012 +/- 0.004 05-09-17 297 0.022 +/- 0.004 11-14-17 307 0.034 +/- 0.005 05-16-17 303 0.014 +/- 0.003 11-21-17 307 0.028 +/- 0.004 05-23-17 302 0.017 +/- 0.004 11-28-17 304 0.032 +/- 0.005 05-30-17 303 0.011 +/- 0.004 12-05-17 302 0.037 +/- 0.005 06-06-17 302 0.015 +/- 0.004 12-12-17 291 0.019 +/- 0.004 06-13-17 303 0.016 +/- 0.004 12-19-17 302 0.025 +/- 0.004 06-20-17 302 0.016 +/- 0.004 12-26-17 302 0.027 +/- 0.004 06-27-17 303 0.012 +/- 0.003 01-02-18 303 0.038 +/- 0.005 2nd Quarter Mean +/- s.d. 0.014 +/- 0.003 4th Quarter Mean +/- s.d. 0.025 +/- 0.009 Cumulative Average 0.020 a lodine-131 concentrations are< 0.03 pCi/m3 unless otherwise noted. 22 KPS Table 6. Airborne particulates and charcoal canisters , analyses for gross beta and iodine-131

a. Location: K-8 Units: pCi/m3 Collection

Continuous, weekly exchange. Date Volume Date Volume Collected (m3) Gross Beta Collected (m3) Reguired LLD 0.010 Reguired LLD 01-10-17 302 0.022 +/- 0.004 07-04-17 307 01-17-17 303 0.038 +/- 0.005 07-11-17 298 01-24-17 302 0.025 +/- 0.004 07-18-17 303 01-31-17 315 0.013 +/- 0.004 07-25-17 301 08-01-17 302 02-07-17 295 0.022 +/- 0.004 02-14-17 299 0.022 +/- 0.004 08-08-17 302 02-21-17 301 0.020 +/- 0.004 08-15-17 305 02-28-17 307 0.019 +/- 0.004 08-22-17 299 08-29-17 306 03-07-17 298 0.021 +/- 0.004 03-14-17 301 0.022 +/- 0.004 09-05-17 299 03-21-17 302 0.023 +/- 0.004 09-12-17 304 03-28-17 302 0.017 +/- 0.004 09-19-17 302 09-26-17 301 10-03-17 302 1st Quarter Mean +/- s.d. 0.022 +/- 0.006 3rd Quarter Mean +/- s.d. 04-04-17 305 0.016 +/- 0.004 10-10-17 302 04-11-17 300 0.012 +/- 0.003 10-17-17 306 04-18-17 302 0.018 +/- 0.004 10-24-17 307 04-25-17 305 0.015 +/- 0.004 10-31-17 296 05-02-17 305 0.011 +/- 0.004 11-07-17 304 05-09-17 298 0.019 +/- 0.004 11-14-17 300 05-16-17 305 0.016 +/- 0.004 11-21-17 300 05-23-17 300 0.018 +/- 0.004 11-28-17 304 05-30-17 250 0.013 +/- 0.004 12-05-17 302 06-06-17 302 0.013 +/- 0.004 12-12-17 305 06-13-17 303 0.018 +/- 0.004 12-19-17 302 06-20-17 304 0.011 +/- 0.004 12-26-17 301 06-27-17 122 0.014 +/- 0.008 b 01-02-18 303 2nd Quarter Mean +/- s.d. 0.015 +/- 0.003 4th Quarter Mean +/- s.d. Cumulative Average a lodine-131 concentrations are< 0.03 pCi/m3 unless otherwise noted. b GFI found off. 23 Gross Beta 0.010 0.014 +/- 0.003 0.018 +/- 0.004 0.010 +/- 0.004 0.016 +/- 0.004 0.014 +/- 0.004 0.018 +/- 0.004 0.023 +/- 0.004 0.022 +/- 0.004 0.022 +/- 0.004 0.020 +/- 0.004 0.012 +/- 0.004 0.032 +/- 0.005 0.037 +/- 0.005 0.022 +/- 0.004 0.020 +/- 0.007 0.027 +/- 0.004 0.019 +/- 0.004 0.029 +/- 0.004 0.011 +/- 0.004 0.017 +/- 0.004 0.037 +/- 0.005 0.032 +/- 0.004 0.029 +/- 0.005 0.039 +/- 0.005 0.028 +/- 0.005 0.030 +/- 0.005 0.031 +/- 0.005 0.032 +/- 0.005 0.028 +/- 0.008 0.021 KPS Table 7. Airborne particulates and charcoal canisters

, analyses for gross beta and iodine-131 *. Location: K-31 Units: pCi/m3 Collection

Continuous

, weekly exchange. Date Volume Collected (mJ) Gross Beta Required LLD 0.010 01-10-17 303 0.023 +/- 0.004 01-17-17 293 0.040 +/- 0.005 01-24-17 302 0.020 +/- 0.004 01-31-17 315 0.014 +/- 0.004 02-07-17 295 0.019 +/- 0.004 02-14-17 299 0.019 +/- 0.004 02-21-17 307 0.018 +/- 0.004 02-28-17 301 0.017 +/- 0.004 03-07-17 305 0.020 +/- 0.004 03-14-17 301 0.018 +/- 0.004 03-21-17 300 0.020 +/- 0.004 03-28-17 303 0.018 +/- 0.004 1st Quarter Mean+/- s.d. 0.021 +/- 0.007 04-04-17 299 0.012 +/- 0.004 04-11-17 149 0.008 +/- 0.006 04-18-17 289 0.018 +/- 0.004 04-25-17 307 0.015 +/- 0.004 05-02-17 305 0.010 +/- 0.004 05-09-17 297 0.019 +/- 0.004 05-16-17 303 0.013 +/- 0.003 05-23-17 302 0.012 +/- 0.003 05-30-17 303 0.014 +/- 0.004 06-06-17 302 0.017 +/- 0.004 06-13-17 303 0.019 +/- 0.004 06-20-17 302 0.014 +/- 0.004 06-27-17 302 0.010 +/- 0.003 2nd Quarter Mean+/- s.d. 0.014 +/- 0.004

• Jodine-131 concentrations are< 0.03 pCi/m3 unless otherwise noted. b Power failure to sample pump. 24 Date Volume Collected (mJ) Required LLD 07-04-17 307 07-11-17 298 07-18-17 301 07-25-17 303 08-01-17 302 08-08-17 302 08-15-17 302 08-22-17 303 08-29-17 306 09-05-17 298 09-12-17 304 09-19-17 301 09-26-17 302 10-03-17 308 3rd Quarter Mean +/- s.d. 10-10-17 304 10-17-17 296 10-24-17 309 10-31-17 298 11-07-17 304 11-14-17 307 11-21-17 307 11-28-17 297 12-05-17 303 12-12-17 303 12-19-17 301 12-26-17 306 01-02-18 304 4th Quarter Mean+/- s.d. Cumulative Average Gross Beta 0.010 0.015 +/- 0.004 0.016 +/- 0.004 0.012 +/- 0.004 0.017 +/- 0.004 0.018 +/- 0.004 0.017 +/- 0.004 0.020 +/- 0.004 0.026 +/- 0.004 0.023 +/- 0.004 0.024 +/- 0.005 0.017 +/- 0.004 0.036 +/- 0.005 0.041 +/- 0.005 0.026 +/- 0.004 0.022 +/- 0.008 0.026 +/- 0.004 0.021 +/- 0.004 0.031 +/- 0.004 0.008 +/- 0.004 0.016 +/- 0.004 0.045 +/- 0.005 0.031 +/- 0.004 0.026 +/- 0.004 0.032 +/- 0.005 0.020 +/- 0.004 0.023 +/- 0.004 0.025 +/- 0.004 0.032 +/- 0.005 0.026 +/- 0.009 0.021 KPS Table 8. Airborne particulates and charcoal canisters, analyses for gross beta and iodine-131

". Location: K-41 Units: pCi/m3 Collection

Continuous, weekly exchange. Date Volume Date Volume Collected (m3) Gross Beta Collected (m3) Gross Beta Reguired LLD 0.010 Reguired LLD 0.010 01-10-17 302 0.022 +/- 0.004 07-04-17 307 0.014 +/- 0.003 01-17-17 299 0.031 +/- 0.005 07-11-17 298 0.018 +/- 0.004 01-24-17 303 0.025 +/- 0.004 07-18-17 304 0.012 +/- 0.004 01-31-17 314 0.016 +/- 0.004 07-25-17 301 0.017 +/- 0.004 08-01-17 302 0.017 +/- 0.004 02-07-17 295 0.021 +/- 0.004 02-14-17 299 0.021 +/- 0.004 08-08-17 300 0.020 +/- 0.004 02-21-17 303 0.017 +/- 0.004 08-15-17 305 0.021 +/- 0.004 02-28-17 305 0.020 +/- 0.004 08-22-17 300 0.028 +/- 0.005 08-29-17 306 0.024 +/- 0.004 03-07-17 303 0.018 +/- 0.004 03-14-17 301 0.019 +/- 0.004 09-05-17 299 0.016 +/- 0.004 03-21-17 301 0.018 +/- 0.004 09-12-17 303 0.018 +/- 0.004 03-28-17 303 0.016 +/- 0.004 09-19-17 303 0.033 +/- 0.005 09-26-17 304 0.042 +/- 0.005 10-03-17 302 0.018 +/- 0.004 1st Quarter Mean +/- s.d. 0.020 +/- 0.004 3rd Quarter Mean +/- s.d. 0.021 +/- 0.008 04-04-17 305 0.012 +/- 0.003 10-10-17 303 0.021 +/- 0.004 04-11-17 300 0.011 +/- 0.003 10-17-17 303 0.017 +/- 0.004 04-18-17 311 0.017 +/- 0.004 10-24-17 301 0.031 +/- 0.004 04-25-17 293 0.014 +/- 0.004 10-31-17 301 0.007 +/- 0.004 05-02-17 305 0.010 +/- 0.004 11-07-17 304 0.015 +/- 0.004 05-09-17 297 0.021 +/- 0.004 11-14-17 303 0.035 +/- 0.005 05-16-17 306 0.018 +/- 0.004 11-21-17 303 0.027 +/- 0.004 05-23-17 299 0.016 +/- 0.004 11-28-17 301 0.034 +/- 0.005 05-30-17 303 0.016 +/- 0.004 12-05-17 309 0.037 +/- 0.005 06-06-17 305 0.016 +/- 0.004 12-12-17 297 0.022 +/- 0.004 06-13-17 300 0.021 +/- 0.004 12-19-17 306 0.028 +/- 0.005 06-20-17 304 0.014 +/- 0.004 12-26-17 298 0.029 +/- 0.004 06-27-17 300 0.011 +/- 0.003 01-02-18 304 0.038 +/- 0.005 2nd Quarter Mean +/- s.d. 0.015 +/- 0.004 4th Quarter Mean +/- s.d. 0.026 +/- 0.009 Cumulative Average 0.021 a lodine-131 concentrations are< 0.03 pCi/m3 unless otherwise noted. 25 KPS Table 9. Airborne particulates and charcoal canisters

, analyses for gross beta and iodine-131 ". Location: K-43 Units: pCi/m3 Collection

Continuous, weekly exchange. Date Volume Date Volume Collected (m~) Gross Beta Collected (m~) Reguired LLD 0.010 Reguired LLD 01-10-17 302 0.021 +/- 0.004 07-04-17 307 01-17-17 303 0.037 +/- 0.005 07-11-17 298 01-24-17 302 0.027 +/- 0.004 07-18-17 304 01-31-17 315 0.014 +/- 0.004 07-25-17 301 08-01-17 302 02-07-17 295 0.023 +/- 0.004 02-14-17 299 0.023 +/- 0.004 08-08-17 302 02-21-17 301 0.019 +/- 0.004 08-15-17 304 02-28-17 307 0.022 +/- 0.004 08-22-17 301 08-29-17 305 03-07-17 298 0.019 +/- 0.004 03-14-17 301 0.020 +/- 0.004 09-05-17 300 03-21-17 302 0.021 +/- 0.004 09-12-17 304 03-28-17 302 0.016 +/- 0.004 09-19-17 302 09-26-17 301 10-03-17 308 1st Quarter Mean+/- s.d. 0.022 +/- 0.006 3rd Quarter Mean +/- s.d. 04-04-17 305 0.016 +/- 0.004 10-10-17 302 04-11-17 300 0.013 +/- 0.004 10-17-17 306 04-18-17 302 0.016 +/- 0.004 10-24-17 307 04-25-17 305 0.017 +/- 0.004 10-31-17 296 05-02-17 305 0.013 +/- 0.004 11-07-17 304 05-09-17 298 0.019 +/- 0.004 11-14-17 300 05-16-17 305 0.017 +/- 0.004 11-21-17 300 05-23-17 300 0.018 +/- 0.004 11-28-17 304 05-30-17 303 0.016 +/- 0.004 12-05-17 302 06-06-17 302 0.017 +/- 0.004 12-12-17 305 06-13-17 303 0.020 +/- 0.004 12-19-17 302 06-20-17 304 0.017 +/- 0.004 12-26-17 300 06-27-17 300 0.011 +/- 0.003 01-02-18 303 2nd Quarter Mean +/- s.d. 0.016 +/- 0.003 4th Quarter Mean+/- s.d. Cumulative Average a lodine-131 concentrations are< 0.03 pCi/m3 unless otherwise noted. 26 Gross Beta 0.010 0.014 +/- 0.003 0.021 +/- 0.004 0.013 +/- 0.004 0.019 +/- 0.004 0.019 +/- 0.004 0.018 +/- 0.004 0.020 +/- 0.004 0.024 +/- 0.004 0.024 +/- 0.004 0.019 +/- 0.004 0.013 +/- 0.004 0.031 +/- 0.005 0.040 +/- 0.005 0.021 +/- 0.004 0.021 +/- 0.007 0.026 +/- 0.004 0.019 +/- 0.004 0.032 +/- 0.004 0.009 +/- 0.004 0.016 +/- 0.004 0.042 +/- 0.005 0.030 +/- 0.004 0.027 +/- 0.004 0.030 +/- 0.005 0.020 +/- 0.004 0.020 +/- 0.004 0.026 +/- 0.004 0.032 +/- 0.005 0.025 +/- 0.008 0.021 KPS Table 10. Airborne particulate data, gross beta analyses, monthly averages, minima and maxima. Janua!l'.

April Location Average Minima Maxima Location Average Minima Maxima Indicators 0.025 0.012 0.037 Indicators 0.015 0.011 0.018 K-1f 0.025 0.012 0.036 K-1f 0.014 0.011 0.018 K-43 0.025 0.014 0.037 K-43 0.015 0.013 0.017 Controls 0.024 0.013 0.040 Controls 0.013 0.008 0.018 K-2 0.024 0.015 0.035 K-2 0.013 0.009 0.017 K-8 0.025 0.013 0.038 K-8 0.014 0.011 0.018 K-31 0.024 0.014 0.040 K-31 0.013 0.008 0.018 K-41 0.024 0.016 0.031 K-41 0.013 0.008 0.018 February Ma Location Average Minima Maxima Location Average Minima Maxima Indicators 0.023 0.019 0.026 Indicators 0.016 0.007 0.032 K-1f 0.023 0.020 0.026 K-1f 0.016 0.014 0.017 K-43 0.022 0.019 0.023 K-43 0.018 0.016 0.019 Controls 0.021 0.017 0.026 Controls 0.017 0.011 0.022 K-2 0.023 0.019 0.026 K-2 0.016 0.011 0.022 K-8 0.021 0.019 0.022 K-8 0.017 0.013 0.019 K-31 0.018 0.017 0.019 K-31 0.015 0.012 0.019 K-41 0.020 0.017 0.021 K-41 0.018 0.016 0.021 March June Location Average Minima Maxima Location Average Minima Maxima Indicators 0.019 0.015 0.023 Indicators 0.015 0.010 0.020 K-1f 0.019 0.015 0.023 K-1f 0.013 0.010 0.015 K-43 0.019 0.016 0.021 K-43 0.016 0.011 0.020 Controls 0.019 0.016 0.023 Controls 0.018 0.007 0.032 K-2 0.019 0.016 0.022 K-2 0.015 0.012 0.016 K-8 0.021 0.017 0.023 K-8 0.014 0.011 0.018 K-31 0.019 0.018 0.020 K-31 0.015 0.010 0.019 K-41 0.018 0.016 0.019 K-41 0.016 0.011 0.021 Note: Samples collected on the first, second or third day of the month are grouped with data of the previous month. 27 KPS Table 10. Airborne particulate data, gross beta analyses, monthly averages, minima and maxima. Jul October Location Average Minima Maxima Location Average Minima Maxima Indicators 0.017 0.008 0.025 Indicators 0.022 0.009 0.032 K-1f 0.016 0.008 0.025 K-1f 0.021 0.009 0.031 K-43 0.017 0.013 0.021 K-43 0.022 0.009 0.032 Controls 0.016 0.010 0.020 Controls 0.021 0.007 0.031 K-2 0.016 0.012 0.020 K-2 0.020 0.007 0.030 K-8 0.014 0.010 0.018 K-8 0.022 0.011 0.029 K-31 0.016 0.012 0.018 K-31 0.022 0.008 0.031 K-41 0.016 0.012 0.018 K-41 0.019 0.007 0.031 AU!;!USt November Location Average Minima Maxima Location Average Minima Maxima Indicators 0.022 0.017 0.024 Indicators 0.029 0.014 0.042 K-1f 0.021 0.017 0.024 K-1f 0.028 0.014 0.040 K-43 0.022 0.018 0.024 K-43 0.029 0.016 0.042 Controls 0.022 0.016 0.028 Controls 0.029 0.012 0.045 K-2 0.021 0.016 0.024 K-2 0.027 0.012 0.034 K-8 0.021 0.018 0.023 K-8 0.029 0.017 0.037 K-31 0.022 0.017 0.026 K-31 0.030 0.016 0.045 K-41 0.023 0.020 0.028 K-41 0.028 0.015 0.035 September December Location Average Minima Maxima Location Average Minima Maxima Indicators 0.026 0.013 0.040 Indicators 0.027 0.020 0.032 K-1f 0.025 0.013 0.038 K-1f 0.028 0.022 0.031 K-43 0.026 0.013 0.040 K-43 0.026 0.020 0.032 Controls 0.027 0.012 0.042 Controls 0.030 0.019 0.039 K-2 0.024 0.013 0.037 K-2 0.029 0.019 0.038 K-8 0.025 0.012 0.037 K-8 0.032 0.028 0.039 K-31 0.030 0.017 0.041 K-31 0.026 0.020 0.032 K-41 0.027 0.016 0.042 K-41 0.031 0.022 O.D38 Note: Samples collected on the first, second or third day of the month are grouped with data of the previous month. 28 KPS Table 11. Airborne particulate samples, quarterly composites of weekly samples, analysis for gamma-emitting isotopes. Sample Description and Concentration (pCi/m3) 1st Quarter 2nd Quarter 3rd Quarter Indicator K-1f Lab Code KAP-1681 KAP-3694 KAP-5545 Volume (m3) 3627 3930 3931 Be-7 0.059 +/- 0.019 0.085 +/- 0.016 0.075 +/- 0.014 Nb-95 < 0.0030 < 0.0012 < 0.0008 Zr-95 < 0.0011 < 0.0012 < 0.0014 Ru-103 < 0.0022 < 0.0008 < 0.0011 Ru-106 < 0.0136 < 0.0090 < 0.0083 Cs-134 < 0.0013 < 0.0008 < 0.0009 Cs-137 < 0.0010 < 0.0007 < 0.0005 Ce-141 < 0.0038 < 0.0016 < 0.0012 Ce-144 < 0.0076 < 0.0033 < 0.0040 K-43 Lab Code KAP-1687 KAP-3700 KAP-5550 Volume (m3) 3627 3932 3931 Be-7 0.071 +/- 0.016 0.101 +/- 0.017 0.088 +/- 0.015 Nb-95 < 0.0010 < 0.0015 < 0.0010 Zr-95 < 0.0018 < 0.0014 < 0.0011 Ru-103 < 0.0017 < 0.0009 < 0.0011 Ru-106 < 0.0057 < 0.0062 < 0.0070 Cs-134 < 0.0010 < 0.0008 < 0.0008 Cs-137 < 0.0007 < 0.0008 < 0.0005 Ce-141 < 0.0024 < 0.0015 < 0.0018 Ce-144 < 0.0057 < 0.0035 < 0.0035 29 4th Quarter KAP-6791 3930 0.072 +/- 0.015 < 0.0011 < 0.0016 < 0.0010 < 0.0060 < 0.0009 < 0.0008 < 0.0015 < 0.0031 KAP-6796 3931 0.067 +/- 0.016 < 0.0007 < 0.0018 < 0.0009 < 0.0057 < 0.0010 < 0.0009 < 0.0019 < 0.0042 KPS Table 11. Airborne particulate samples, quarterly composites of weekly samples, analysis for gamma-emitting isotopes, (continued). Sample Description and Concentrat ion {pCi/m3) 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Control K-2 Lab Code KAP-1682 KAP-3696 KAP-5546 KAP-6792 Volume (m3) 3625 3928 3928 3929 Be-7 0.065 +/- 0.015 0.078 +/- 0.015 0.075 +/- 0.013 0.069 +/- 0.015 Nb-95 < 0.0013 < 0.0012 < 0.0008 < 0.0013 Zr-95 < 0.0020 < 0.0018 < 0.0014 < 0.0010 Ru-103 < 0.0014 < 0.0008 < 0.0009 < 0.0010 Ru-106 < 0.0082 < 0.0085 < 0.0055 < 0.0074 Cs-134 < 0.0011 < 0.0008 < 0.0007 < 0.0009 Cs-137 < 0.0009 < 0.0008 < 0.0007 < 0.0005 Ce-141 < 0.0016 < 0.0015 < 0.0011 < 0.0023 Ce-144 < 0.0053 < 0.0036 < 0.0028 < 0.0049 K-8 Lab Code KAP-1683 KAP-3697 KAP-5547 KAP-6793 Volume (m3) 3627 3701 3929 3932 Be-7 0.074 +/- 0.016 0.076 +/- 0.016 0.071 +/- 0.012 0.068 +/- 0.015 Nb-95 < 0.0015 < 0.0011 < 0.0007 < 0.0008 Zr-95 < 0.0016 < 0.0013 < 0.0012 < 0.0015 Ru-103 < 0.0012 < 0.0008 < 0.0007 < 0.0013 Ru-106 < 0.0070 < 0.0040 < 0.0027 < 0.0081 Cs-134 < 0.0010 < 0.0012 < 0.0007 < 0.0007 Cs-137 < 0.0006 < 0.0003 < 0.0005 < 0.0009 Ce-141 < 0.0024 < 0.0017 < 0.0010 < 0.0020 Ce-144 < 0.0042 < 0.0039 < 0.0027 < 0.0029 30 KPS Table 11. Airborne particulate samples, quarterly composites of weekly samples, analysis for gamma-emitting isotopes, (continued) . Sample Description and Concentration (pCi/m3) 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Control K-31 Lab Code KAP-1684 KAP-3698 KAP-5548 KAP-6794 Volume (m3) 3624 3763 3929 3939 Be-7 0.063 +/- 0.018 0.076 +/- 0.016 0.093 +/- 0.020 0.067 +/- 0.013 Nb-95 < 0.0009 < 0.0016 < 0.0009 < 0.0012 Zr-95 < 0.0023 < 0.0017 < 0.0015 < 0.0014 Ru-103 < 0.0009 < 0.0007 < 0.0009 < 0.0014 Ru-106 < 0.0074 < 0.0073 < 0.0042 < 0.0058 Cs-134 < 0.0009 < 0.0009 < 0.0009 < 0.0010 Cs-137 < 0.0008 < 0.0007 < 0.0009 < 0.0007 Ce-141 < 0.0023 < 0.0014 < 0.0021 < 0.0019 Ce-144 < 0.0040 < 0.0039 < 0.0054 < 0.0050 K-41 Lab Code KAP-1685 KAP-3699 KAP-5549 KAP-6795 Volume (m3) 3628 3928 3932 3933 Be-7 0.072 +/- 0.017 0.088 +/- 0.017 0.086 +/- 0.014 0.068 +/- 0.016 Nb-95 < 0.0008 < 0.0015 < 0.0006 < 0.0006 Zr-95 < 0.0017 < 0.0012 < 0.0020 < 0.0015 Ru-103 < 0.0017 < 0.0010 < 0.0011 < 0.0010 Ru-106 < 0.0077 < 0.0058 < 0.0063 < 0.0073 Cs-134 < 0.0011 < 0.0008 < 0.0008 < 0.0008 Cs-137 < 0.0009 < 0.0004 < 0.0010 < 0.0007 Ce-141 < 0.0016 < 0.0016 < 0.0015 < 0.0020 Ce-144 < 0.0050 < 0.0038 < 0.0037 < 0.0049 31 KPS Table 12. Ambient gamma radiation (TLD), quarterly exposure . .1.fil...Q1L 2nd Qtr. 3rd Qtr. 4th Qtr. Date Placed 01-03-17 04-03-17 07-05-17 10-02-17 Date Removed 04-03-17 07-05-17 10-02-17 01-02-18 mR/91 days Indicator Mean+/-s.d. K-1f 15.6 +/- 0.8 14.9 +/- 0.6 14.4 +/- 0.7 15.4+/-1.1 15.1 +/- 0.5 K-5 16.0 +/- 0.6 17.2 +/- 0.5 14.5 +/- 0.7 16.6 +/- 0.5 16.1 +/- 1.2 K-17 18.4+/-0.5 17.0 +/- 0.7 16.4 +/- 0.5 16.5 +/- 0.9 17.1 +/- 0.9 K-25 17.8 +/- 0.8 18.9 +/- 1.1 16.3 +/- 0.7 17.5 +/- 0.8 17.6 +/- 1.1 K-27 17.7 +/- 0.5 17.2 +/- 0.7 16.2 +/- 0.2 14.7 +/- 0.4 16.5+/-1.3 K-30 18.0 +/- 0.9 15.3 +/- 0.7 16.0 +/- 0.9 14.3 +/- 0.6 15.9+/-1.6 K-39 18.4 +/- 1.2 17.2 +/- 0.6 16.6 +/- 1.0 16.1 +/- 0.6 17.1 +/- 1.0 K-43 15.1 +/- 0.8 14.1 +/- 0.6 13.1 +/- 0.7 13.1+/-0.7 13.9+/-1.0 Mean+/- s.d. 17.1 +/- 1.3 16.5+/-1.6 15.4 +/- 1.3 15.5 +/- 1.4 16.1 +/- 0.8 Control K-2 16.8 +/- 0.8 17.2 +/- 0.6 15.8 +/- 0.7 17.4 +/-0.8 16.8 +/- 0.7 K-3 18.3 +/- 1.1 17.0 +/-0.9 17.4 +/- 0.9 16.8 +/- 0.7 17.4 +/- 0.7 K-8 18.3+/-1.2 17.2 +/- 0.7 16.2 +/- 1.0 16.6 +/- 0.7 171 +/-0.9 K-15 15.5 +/- 0.7 14.9 +/- 0.7 14.5 +/- 0.5 14.1 +/- 0.4 14.8 +/- 0.6 K-31 13.5 +/- 0.6 13.3 +/- 0.4 11.7 +/- 0.5 12.3 +/- 0.3 12.7 +/- 0.8 K-41 14.2 +/- 1.0 14.3 +/- 0.8 12.7 +/- 0.8 13.4 +/- 0.7 13.7 +/- 0.8 Mean+/- s.d. 16.1 +/- 2.0 15.7 +/- 1.7 14.7 +/- 2.2 15.1 +/- 2.1 15.4 +/-0.6 Inside the Protected Area Date Placed 01-01-17 03-31-17 07-02-17 10-02-17 Date Removed 03-31-17 07-02-17 10-02-17 01-01-18 Mean+/-s.d. K-11 174.3 +/- 7.9 103.9 +/- 7.2 99.0 +/- 5.3 91.3 +/- 7.5 117.1 +/- 38.5 K-1m 115.8 +/- 2.3 223.7 +/- 15.0 271.9 +/- 8.5 243.5 +/- 15.2 213.7 +/- 68.2 K-1n 49.1 +/- 2.5 255.1 +/- 22.3 389.9 +/- 13.8 371.6 +/- 30.1 266.4 +/- 156. 7 K-1o 25.5 +/- 0.7 112.0 +/- 7.7 212.3 +/- 4.7 214.8 +/- 12.9 141.2 +/-90.8 K-1p 29.9 +/- 0.6 63.6 +/- 4.1 73.9 +/- 0.4 73.1 +/-4.7 60.1 +/- 20.7 K-1q 19.1 +/- 1.4 21.2 +/- 0.6 25.4 +/- 1.8 27.8 +/- 0.9 23.4 +/- 3.9 K-1r 24.0 +/- 0.8 25.3 +/- 1.3 20.7 +/- 0.6 22.4 +/- 1.0 23.1 +/- 2.0 K-1s 42.2 +/- 2.6 42.2 +/- 2.2 42.1 +/- 1.8 39.5 +/- 1.8 41.5 +/- 1.3 Mean+/- s.d. 60.0 +/- 55.7 105.9 +/- 89.2 141.9+/-135.2 135.5 +/- 127.1 110.8 +/- 106.6 32 Table 13. Date Collected 01/03/17 02/01/17 03/01/17 04/03/17 05/01/17 06/01/17 07/05/17 08/01/17 09/06/17 10/02/17 11/01/17 12/04/17 KPS Precipitation samples collected at Location K-11; analysis for tritium. Lab Code KP-62 KP-387 KP-823 KP-1329 KP-1927 KP-2635 KP-3220 KP-3863 KP-4578 KP-5057 KP-5791 KP-6285 H-3 pCi/L T.U. (100 T.U. = 320 pCi/L) < 154 < 48 < 155 < 48 < 155 < 48 < 150 < 47 < 148 < 46 < 152 < 48 < 178 < 56 < 157 < 49 < 187 < 58 < 143 < 45 < 158 < 49 < 148 < 46 33 l KPS Table 14. Milk, analyses for iodine-131 and gamma-emitting isotopes. Collection

Semimonthly during grazing season, monthly at other times. Collection Lab Concentration (pCi/L) Date Code 1-131 Cs-134 Cs-137 Ba-La-140 K-40 Indicators K-5 01-04-17 KMI-2 < 0.3 < 3.9 < 3.3 < 4.8 1269 +/- 111 02-02-17 KMI-358 < 0.2 < 3.9 < 3.6 < 1.9 1345 +/- 117 03-02-17 KMI-817 < 0.2 < 4.6 < 3.5 < 6.6 1586 +/- 131 04-03-17 KMI-1322 < 0.3 < 4.0 < 4.0 < 3.9 1425 +/- 109 05-01-17 KMI-1912 < 0.5 < 3.7 < 3.9 < 3.9 1255 +/- 96 05-16-17 KMI-2195 < 0.3 < 6.1 < 6.9 < 3.9 1371 +/- 160 06-02-17 KMI-2607 < 0.3 < 4.7 < 4.6 < 2.9 1501 +/- 132 06-20-17 KMI-2991 < 0.2 < 4.6 < 3.5 < 1.4 1464 +/- 123 07-06-17 KMI-3214 < 0.2 < 3.5 < 3.4 < 1.5 1409 +/- 120 07-18-17 KMI-3518 < 0.2 < 5.6 < 6.4 < 5.2 1275 +/- 152 08-01-17 KMI-3857 < 0.3 < 3.5 < 2.8 < 2.2 1433 +/- 108 08-15-17 KMI-4183 < 0.3 < 3.3 < 2.4 < 1.7 1349 +/- 120 09-07-17 KMI-4553 < 0.2 < 2.9 < 2.1 < 2.8 1289 +/- 107 09-19-17 KMI-4782 < 0.4 < 3.1 < 4.1 < 2.1 1269 +/- 115 10-03-17 KMI-5029 < 0.4 < 3.6 < 4.3 < 3.2 1378 +/- 107 10-17-17 KMI-5410 < 0.4 < 4.0 < 3.6 < 3.3 1254 +/- 116 11-02-17 KMI-5763 < 0.3 < 3.6 < 3.3 < 3.4 1305 +/- 116 12-05-17 KMI-6289 < 0.4 < 3.6 < 2.9 < 2.0 1266 +/- 118 K-34 01-03-17 KMI-3 < 0.4 < 3.0 < 2.1 < 3.5 1484 +/- 121 02-01-17 KMI-359 < 0.4 < 3.0 < 2.1 < 2.2 1350 +/- 105 03-01-17 KMI-818 < 0.2 < 3.6 < 4.1 < 4.0 1357 +/- 106 04-03-17 KMI-1323 < 0.3 < 3.0 < 4.0 < 3.4 1463 +/- 98 05-01-17 KMI-1913 < 0.4 < 3.8 < 3.2 < 4.2 1353 +/- 107 05-16-17 KMI-2196 < 0.4 < 3.1 < 2.1 < 1.2 1427 +/- 114 06-01-17 KMI-2608 < 0.4 < 4.2 < 3.4 < 2.3 1435 +/- 123 06-20-17 KMI-2992 < 0.2 < 4.5 < 3.4 < 3.0 1403 +/- 129 07-05-17 KMI-3215 < 0.2 < 3.4 < 3.5 < 1.8 1472+/-113 07-18-17 KMI-3519 < 0.2 < 3.5 < 3.7 < 1.5 1306 +/- 115 08-01-17 KMI-3858 < 0.3 < 3.1 < 3.2 < 3.8 1442 +/- 113 08-15-17 KMI-4184 < 0.4 < 4.4 < 4.1 < 1.8 1436 +/- 122 09-06-17 KMI-4554 < 0.3 < 3.1 < 3.7 < 4.4 1355 +/- 103 09-19-17 KMI-4783 < 0.4 < 5.0 < 5.1 < 2.0 1543 +/- 132 10-02-17 KMI-5030 < 0.3 < 4.2 < 4.2 < 4.4 1389+/-112 10-17-17 KMI-5411 < 0.4 < 3.1 < 3.1 < 2.1 1390 +/- 108 11-01-17 KMI-5764 < 0.3 < 3.6 < 2.5 < 4.3 1406 +/- 115 12-04-17 KMI-6290 < 0.3 < 3.2 < 2.4 < 1.7 1436 +/- 117 34 KPS Table 14. Milk, analyses for iodine-131 and gamma-emitt ing isotopes (continued)

. Collection Lab Concentration (pCi/L) Date Code 1-131 Cs-134 Cs-137 Ba-La-140 K-40 Indicators K-38 01-04-17 KMI-5 < 0.3 < 3.5 < 3.5 < 2.3 1332 +/- 108 02-01-17 KMI-361 < 0.4 < 3.4 < 3.6 < 1.2 1336 +/- 106 03-01-17 KMI-820 < 0.2 < 3.2 < 3.7 < 1.5 1384 +/- 106 04-04-17 KMI-1325 < 0.3 < 3.1 < 3.4 < 2.5 1453 +/- 107 05-01-17 KMI-1915 < 0.4 < 3.4 < 2.4 < 2.9 1537 +/- 113 05-16-17 KMI-2198 < 0.2 < 3.5 < 2.6 < 2.1 1416 +/- 117 06-01-17 KMI-2610 < 0.3 < 4.2 < 3.1 < 1.5 1306 +/- 116 06-20-17 KMI-2994 < 0.2 < 3.6 < 3.8 < 2.4 1433 +/- 111 07-05-17 KMI-3217 < 0.2 < 3.1 < 2.5 < 4.5 1419 +/- 118 07-18-17 KMI-3521 < 0.2 < 3.4 < 2.8 < 1.3 1337 +/- 109 08-01-17 KMI-3860 < 0.2 < 3.7 < 2.8 < 3.8 1339 +/- 110 08-15-17 KMl-4186 < 0.4 < 3.4 < 3.7 < 1.8 1352 +/- 120 09-07-17 KMI-4556 < 0.2 < 3.8 < 2.6 < 4.3 1389 +/- 111 09-19-17 KMI-4785 < 0.2 < 3.2 < 3.9 < 1.6 1303 +/- 101 10-02-17 KMI-5032 < 0.5 < 4.4 < 5.8 < 1.9 1307 +/- 120 10-17-17 KMI-5413 < 0.4 < 4.4 < 3.6 < 1.4 1330 +/- 123 11-02-17 KMI-5766 < 0.2 < 4.1 < 2.8 < 7.5 1353 +/- 117 12-04-17 KMI-6292 < 0.2 < 2.9 < 3.1 < 2.6 1308 +/- 116 K-39 01-03-17 KMI-6 < 0.4 < 3.2 < 3.3 < 4.5 1359 +/- 112 02-02-17 KMI-362 < 0.3 < 3.3 < 3.8 < 1.7 1332 +/- 114 03-02-17 KMI-821 < 0.2 < 3.5 < 2.9 < 3.6 1298 +/- 100 04-03-17 KMI-1326 < 0.3 < 3.3 < 3.7 < 3.1 1382 +/- 104 05-01-17 KMI-1916 < 0.2 < 3.2 < 2.7 < 4.2 1263 +/- 101 05-16-17 KMI-2199 < 0.2 < 3.6 < 3.3 < 2.3 1377 +/- 114 06-02-17 KMI-2611 < 0.4 < 4.7 < 3.1 < 1.7 1322 +/- 116 06-20-17 KMI-2995 < 0.3 < 6.7 < 7.2 < 4.8 1263 +/- 153 07-06-17 KMI-3218 < 0.2 < 3.2 < 3.9 < 3.8 1333 +/- 100 07-18-17 KMI-3522 < 0.2 < 6.7 < 7.1 < 4.8 1242 +/- 142 08-01-17 KMI-3861 < 0.4 < 3.9 < 1.8 < 3.3 1308 +/- 107 08-15-17 KMI-4187 < 0.3 < 3.4 < 2.5 < 2.6 1311 +/- 112 09-06-17 KMI-4557 < 0.2 < 2.9 < 3.1 < 3.6 1306 +/- 105 09-19-17 KMI-4786 < 0.3 < 4.4 < 4.1 < 3.6 1380 +/- 122 10-02-17 KMI-5033 < 0.5 <4.6 < 3.3 < 2.7 1316 +/- 128 10-17-17 KMI-5414 < 0.4 < 4.1 < 4.2 < 1.6 1435 +/- 118 11-01-17 KMI-5767 < 0.3 < 3.3 < 3.9 < 5.5 1285 +/- 112 12-05-17 KMI-6293 < 0.4 < 3.2 < 3.2 < 1.1 1403 +/- 116 35 KPS Table 14. Milk, analyses for iodine-131 and gamma-emitting isotopes (continued) . Collection Lab Concentration (pCi/L) Date Code 1-131 Cs-134 Cs-137 Ba-La-140 K-40 Controls K-3 01-04-17 KMI-1 < 0.4 < 3.4 < 3.2 < 4.3 1346 +/- 109 02-01-17 KMI-357 < 0.2 <4.0 < 3.6 < 2.9 1417 +/- 115 03-01-17 KMI-816 < 0.2 < 3.1 < 2.4 < 1.5 1380 +/- 100 04-03-17 KMI-1321 < 0.4 < 3.0 < 3.0 < 2.2 1453 +/- 97 05-01-17 KMI-1911 < 0.4 < 4.0 < 3.5 < 2.6 1514+/-118 05-16-17 KMI-2194 < 0.5 < 3.9 < 2.4 < 1.4 1438 +/- 123 06-02-17 KMI-2606 < 0.3 < 3.8 < 4.2 < 1.7 1386 +/- 106 06-20-17 KMI-2990 < 0.2 < 6.7 < 6.3 < 4.4 1300 +/- 179 07-05-17 KMI-3213 < 0.3 < 3.5 < 3.6 < 1.9 1549 +/- 121 07-18-17 KMI-3517 < 0.2 < 3.2 < 3.5 < 1.5 1451 +/- 112 08-01-17 KMI-3856 < 0.4 < 3.8 < 4.6 < 3.9 1565 +/- 115 08-15-17 KMI-4182 < 0.4 < 4.1 < 3.4 < 1.4 1439 +/- 117 09-06-17 KMI-4552 < 0.2 < 3.4 < 3.9 < 3.6 1447 +/- 116 09-19-17 KMI-4781 < 0.3 < 4.0 < 3.2 < 2.7 1371 +/-115 10-02-17 KMI-5028 < 0.4 < 4.4 < 3.3 < 1.5 1462 +/- 108 10-17-17 KMI-5409 < 0.5 < 4.0 < 5.0 < 3.2 1522 +/- 127 11-01-17 KMI-5762 < 0.3 < 3.3 < 3.6 < 3.1 1337 +/- 120 12-05-17 KMI-6288 < 0.4 < 4.8 < 4.6 < 3.8 1361 +/- 127 K-35 01-04-17 KMI-4 < 0.3 < 4.8 < 3.9 < 3.2 1568 +/- 131 02-02-17 KMI-360 < 0.1 < 4.6 < 2.3 < 2.7 1417 +/- 121 03-02-17 KMI-819 < 0.2 < 2.8 < 3.8 < 3.4 1426 +/- 104 04-04-17 KMI-1324 < 0.3 < 3.5 < 4.3 < 3.3 1384 +/- 100 05-02-17 KMI-1914 < 0.4 < 3.6 < 3.0 < 3.1 1498 +/- 121 05-16-17 KMI-2197 < 0.3 < 3.9 < 5.0 < 2.2 1313 +/- 124 06-02-17 KMI-2609 < 0.4 < 4.5 < 4.7 < 1.4 1423 +/- 120 06-20-17 KMI-2993 < 0.2 < 4.1 < 2.2 < 3.2 1414 +/- 118 07-06-17 KMI-3216 < 0.2 < 3.7 < 3.5 < 4.1 1431 +/- 129 07-18-17 KMI-3520 < 0.2 < 3.6 < 3.3 < 2.6 1443 +/- 125 08-02-17 KMI-3859 < 0.4 < 4.2 < 4.4 < 4.0 1579+/-120 08-15-17 KMI-4185 < 0.5 < 4.2 < 5.3 < 1.7 1514 +/- 136 09-07-17 KMI-4555 < 0.3 < 3.9 < 3.1 < 3.0 1359 +/- 109 09-19-17 KMI-4784 < 0.3 < 6.8 < 3.8 < 4.8 1218 +/- 153 10-02-17 KMI-5031 < 0.3 < 5.0 < 4.9 < 2.3 1637 +/- 145 10-17-17 KMI-5412 < 0.4 < 3.0 < 3.9 < 1.9 1284 +/- 112 11-02-17 KMI-5765 < 0.3 < 3.7 < 1.8 < 2.8 1445 +/- 112 12-05-17 KMI-6291 < 0.4 < 4.6 < 5.0 < 3.9 1425 +/- 127 36 KPS Table 14. Milk, analyses for iodine-131 and gamma-emitting isotopes (continued) . Collection Lab Concentration (pCi/L) Date Code 1-131 Cs-134 Cs-137 Ba-La-140 K-40 Control K-42 01-03-17 KMI-7 < 0.4 < 4.0 < 4.0 < 3.9 1422 +/- 114 02-01-17 KMI-363 < 0.3 < 3.2 < 2.6 < 2.5 1373 +/- 108 03-01-17 KMI-822 < 0.2 < 3.2 < 4.6 < 2.9 1293 +/- 104 04-03-17 KMI-1327 < 0.3 < 4.0 < 4.0 < 2.8 1388 +/- 113 05-01-17 KMI-1917 < 0.2 < 3.9 < 2.4 < 1.8 1346 +/- 105 05-16-17 KMI-2200 < 0.2 < 3.4 < 3.3 < 2.2 1261 +/- 108 06-01-17 KMI-2612 < 0.3 < 3.8 < 4.9 < 4.7 1271 +/- 114 06-20-17 KMI-2996 < 0.2 < 4.0 < 5.0 < 1.6 1338 +/- 114 07-05-17 KMI-3219 < 0.4 < 3.3 < 3.4 < 2.4 1337+/-112 07-18-17 KMI-3523 < 0.1 < 4.1 < 4.8 < 1.2 1285 +/- 117 08-01-17 KMI-3862 < 0.2 < 3.2 < 3.4 < 3.3 1275 +/- 101 08-15-17 KMI-4188 < 0.3 < 3.4 < 2.0 < 1.3 1441 +/- 124 09-06-17 KMI-4558 < 0.3 < 3.1 < 2.2 < 2.1 1443 +/- 106 09-19-17 KMI-4787 < 0.5 < 7.0 < 4.5 < 5.5 1374 +/- 160 10-02-17 KMI-5034 < 0.2 < 4.8 < 4.3 < 5.4 1349 +/- 124 10-17-17 KMI-5415 < 0.4 < 3.8 < 3.6 < 2.6 1432 +/- 120 11-01-17 KMI-5768 < 0.2 < 3.8 < 3.9 < 4.5 1340 +/- 114 12-04-17 KMI-6294 < 0.2 < 3.5 < 3.5 < 2.6 1382 +/- 118 37 KPS Table 15. Milk, analyses for strontium-89 , strontium-90 , stable potassium, stable calcium, and ratios of strontium-90 per gram of calcium and cesium-137 per gram of potassium . Collection: Monthly composites . Concentration Ratios Collection Lab Sr-89 Sr-90 K Ca Sr-90 per Cs-137 per Period Code (pCi/L) (pCi/L) (g/L) (g/L) gram Ca gram K Indicators K-5 January KMI -2 < 0.9 < 0.6 1.55 +/-0.14 1.00 < 0.60 < 6.45 February KMI -358 < 1.0 < 0.9 1.64 +/-0.14 0.90 < 1.00 < 6.10 March KMI -817 < 0.9 1.5+/-0.7 1.93+/-0.16 0.89 1.69 < 5.18 April KMI -1322 < 0.7 < 0.6 1.74+/-0.13 0.95 < 0.63 < 5.75 May KMI -2370 < 0.9 < 0.6 1.60 +/-0.16 0.90 < 0.67 < 6.25 June KMI -3076 < 0.8 1.1 +/-0.4 1.81+/-0.16 0.83 1.33 < 5.52 July KMI -3895 < 0.7 < 0.5 1.64 +/-0.17 0.87 < 0.57 < 6.10 August KMI -4190 < 0.9 < 0.6 1.70+/-0.14 0.94 < 0.64 < 5.88 September KMI -4851 < 0.9 < 0.6 1.56 +/-0.14 0.92 < 0.65 < 6.41 October KMI -5435 < 0.9 < 0.6 1.60 +/- 0.14 0.97 < 0.62 < 6.25 November KMI -5763 < 1.0 0.8 +/- 0.4 1.59 +/- 0.14 0.95 0.84 < 6.29 December KMI -6289 < 1.0 < 0.6 1.54 +/- 0.14 0.94 < 0.64 < 6.49 K-34 January KMI -3 < 0.8 0.7 +/- 0.3 1.81 +/- 0.15 0.95 0.74 < 5.52 February KMI -359 < 0.9 < 0.6 1.65 +/-0.13 0.85 < 0.71 < 6.06 March KMI -818 < 0.9 0.7 +/- 0.3 1.65 +/-0.13 0.95 0.74 < 6.06 April KMI -1323 < 0.7 0.7 +/- 0.4 1.78 +/- 0.12 0.88 0.80 < 5.62 May KMI -2371 < 0.7 0.8 +/- 0.3 1.70+/-0.13 0.97 0.82 < 5.88 June KMI -3077 < 0.8 1.1 +/-0.4 1.73 +/- 0.15 0.84 1.31 < 5.78 July KMI -3896 < 0.7 < 0.5 1.69 +/- 0.14 0.93 < 0.54 < 5.92 August KMI -4191 < 0.8 < 0.6 1.75 +/- 0.14 0.85 < 0.71 < 5.71 September KMI -4852 < 0.7 < 0.6 1.77 +/- 0.14 1.07 < 0.56 < 5.65 October KMI -5436 < 0.7 < 0.5 1.69 +/- 0.13 1.00 < 0.50 < 5.92 November KMI -5764 < 0.8 < 0.5 1.71 +/- 0.14 0.95 < 0.53 < 5.85 December KMI -6290 < 0.8 < 0.5 1.75 +/-0.14 1.08 < 0.46 < 5.71 38 KPS Table 15. Milk, analyses for strontium-89 , strontium -90, stable potassium, stable calcium, and ratios of strontium-90 per gram of calcium and cesium-137 per gram of potassium (continued) . Concentration Ratios Collection Lab Sr-89 Sr-90 K Ca Sr-90 per Cs-137 per Period Code (pCi/L) (pCi/L) (g/L) (g/L) gram Ca gram K Indicators K-38 January KM! -5 < 0.7 0.8 +/- 0.3 1.62 +/- 0.13 0.93 0.86 < 6.17 February KM! -361 < 0.8 0.8 +/- 0.3 1.63 +/- 0.13 1.04 0.77 < 6.13 March KM! -820 < 0.8 0.8 +/- 0.3 1.69 +/-0.13 0.99 0.81 < 5.92 April KM! -1325 < 0.6 < 0.6 1.77+/-0.13 0.99 < 0.61 < 5.65 May KM! -2373 < 0.9 0.8 +/- 0.4 1.80 +/-0.14 0.92 0.87 < 5.56 June KM! -3079 < 0.8 0.7 +/- 0.4 1.67+/-0.14 0.95 0.74 < 5.99 July KM! -3898 < 0.8 0.7 +/- 0.3 1.68 +/-0.14 1.00 0.70 < 5.95 August KM! -4193 < 0.8 0.8 +/- 0.4 1.64 +/- 0.14 0.93 0.86 < 6.10 September KM! -4854 < 0.8 0.7 +/- 0.4 1.64 +/- 0.13 0.95 0.74 < 6.10 October KM! -5438 < 0.7 0.6 +/- 0.3 1.61+/-0.15 0.85 0.71 < 6.21 November KM! -5766 < 0.8 < 0.5 1.65 +/- 0.14 0.94 < 0.53 < 6.06 December KM! -6292 < 0.9 0.8 +/- 0.3 1.60 +/- 0.14 1.01 0.79 < 6.25 K-39 January KM! -6 < 0.9 < 0.6 1.66 +/-0.14 1.02 < 0.59 < 6.02 February KM! -362 < 0.9 < 0.6 1.62 +/-0.14 1.05 < 0.57 < 6.17 March KM! -821 < 0.9 < 0.6 1.58 +/- 0.12 1.00 < 0.60 < 6.33 April KM! -1326 < 0.9 < 0.8 1.69 +/- 0.13 0.87 < 0.92 < 5.92 May KM! -2374 < 0.8 < 0.6 1.61+/-0.13 0.95 < 0.63 < 6.21 June KM! -3080 < 0.9 1.1 +/- 0.4 1.58 +/-0.16 0.88 1.25 < 6.33 July KM! -3899 < 0.7 < 0.5 1.57 +/- 0.15 0.93 < 0.54 < 6.37 August KM! -4194 < 0.8 < 0.6 1.60 +/- 0.13 0.95 < 0.63 < 6.25 September KM! -4855 < 0.8 < 0.6 1.64 +/- 0.14 1.08 < 0.56 < 6.10 October KM! -5439 < 0.8 < 0.6 1.68 +/- 0.15 0.86 < 0.70 < 5.95 November KM! -5767 < 1.0 < 0.6 1.57 +/- 0.14 1.02 < 0.59 < 6.37 December KM! -6293 < 1.0 < 0.6 1.71 +/- 0.14 1.00 < 0.60 < 5.85 39 KPS Table 15. Milk, analyses for strontium-89 , strontium-90 , stable potassium , stable calcium, and ratios of strontium-90 per gram of calcium and cesium-137 per gram of potassium (continued) . Concentration Ratios Collection Lab Sr-89 Sr-90 K Ca Sr-90 per Cs-137 per Period Code (pCi/L) (pCi/L) (g/L) (g/L) gram Ca gram K Control K-3 January KMI -1 < 1.1 < 0.7 1.64 +/-0.13 0.99 < 0.71 < 6.10 February KMI -357 < 1.3 1.1 +/- 0.5 1.73 +/- 0.14 0.97 1.13 < 5.78 March KMI -816 < 0.9 < 0.6 1.68 +/- 0.12 0.96 < 0.63 < 5.95 April KMI -1321 < 0.8 1.0 +/- 0.4 1.77 +/-0.12 0.81 1.23 < 5.65 May KMI -2369 < 0.8 < 0.5 1.80 +/-0.15 1.01 < 0.5 < 5.56 June KMI -3075 < 0.7 1.1 +/- 0.4 1.64 +/-0.17 0.90 1.22 < 6.10 July KMI -3894 < 0.7 0.5 +/- 0.3 1.83 +/-0.14 0.92 0.54 < 5.46 August KMI -4189 < 0.8 0.8 +/- 0.4 1.83 +/-0.14 1.04 0.77 < 5.46 September KMI -4850 < 0.8 < 0.6 1.72+/-0.14 1.02 < 0.59 < 5.81 October KMI -5434 < 0.8 < 0.5 1.82 +/-0.14 1.03 < 0.49 < 5.49 November KMI -5762 < 0.9 1.2 +/- 0.4 1.63 +/-0.15 1.10 1.09 < 6.13 December KMI -6288 < 1.0 < 0.5 1.66+/-0.15 0.95 < 0.53 < 6.02 K-35 January KMI -4 < 0.8 0.6 +/- 0.3 1.91 +/- 0.16 0.88 0.68 < 5.24 February KMI -360 < 0.9 < 0.5 1.73 +/- 0.15 1.02 < 0.49 < 5.78 March KMI -819 < 0.8 < 0.5 1.74+/-0.13 0.94 < 0.53 < 5.75 April KMI -1324 < 0.7 < 0.7 1.69 +/- 0.12 0.95 < 0.74 < 5.92 May KMI -2372 < 0.8 < 0.5 1.71+/-0.15 0.93 < 0.54 < 5.85 June KMI -3078 < 0.8 < 0.6 1.73 +/-0.15 0.93 < 0.65 < 5.78 July KMI -3897 < 0.8 < 0.6 1.75+/-0.15 0.95 < 0.63 < 5.71 August KMI -4192 < 0.7 < 0.5 1.89+/-0.16 0.91 < 0.55 < 5.29 September KMI -4853 < 0.8 0.7 +/- 0.4 1.57+/-0.16 118 0.59 < 6.37 October KMI -5437 < 0.7 0.5 +/- 0.3 1.78+/-0.16 0.91 0.55 < 5.62 November KMI -5765 < 0.8 < 0.5 1.76+/-0.14 1.08 < 0.46 < 5.68 December KMI -6291 < 0.9 < 0.5 1.74+/-0.15 0.95 < 0.53 < 5.75 K-42 January KMI -7 < 0.9 < 0.6 1.73 +/- 0.14 0.98 < 0.61 < 5.78 February KMI -363 < 1.0 < 0.6 1.67 +/- 0.13 0.88 < 0.68 < 5.99 March KMI -822 < 1.0 0.7 +/- 0.3 1.58 +/- 0.13 0.97 0.72 < 6.33 April KMI -1327 < 0.8 0.9 +/- 0.5 1.69 +/- 0.14 0.86 1.05 < 5.92 May KMI -2375 < 1.0 < 0.7 1.59 +/-0.13 0.85 < 0.82 < 6.29 June KMI -3081 < 0.8 < 0.7 1.59 +/- 0.14 0.86 < 0.81 < 6.29 July KMI -3900 < 0.7 0.6 +/- 0.3 1.60 +/-0.14 0.95 0.63 < 6.25 August KMI -4195 < 1.3 < 1.0 1.66 +/-0.13 0.93 < 1.08 < 6.02 September KMI -4856 < 1.0 1.0 +/- 0.4 1.72+/-0.14 0.90 1.11 < 5.81 October KMI -5440 < 0.8 0.7 +/- 0.3 1.70 +/- 0.17 0.89 0.79 < 5.88 November KMI -5768 < 1.1 0.7 +/- 0.4 1.63 +/- 0.14 1.05 0.67 < 6.13 December KMI -6294 < 1.1 0.7 +/- 0.3 1.69 +/- 0.14 1.07 0.65 < 5.92 40 KPS Table 16. Well water, analyses for gross alpha, gross beta, tritium, strontium-89 ", strontium-90 ", potassium-40 and gamma-emitt ing isotopes. Collection: Quarterly . Sample Description and Concentra tion (pCi/L) Indicator K-1g Date Collected 01-03-17 04-03-17 07-05-17 10-02-17 Lab Code 'r<M/W-37 'r<M/W-134 7 'r<M/W-3233 'r<M/W-5049 Gross alpha 4.0+/-1.6 < 1.7 < 1.4 1.5 +/- 1.1 Gross beta 3.3 +/- 1.2 < 1.6 1.8 +/- 1.1 1.9 +/- 1.4 H-3 < 179 < 150 < 178 < 143 Sr-89 < 0.6 < 0.6 < 0.6 < 0.5 Sr-90 < 0.5 < 0.4 < 0.5 < 0.4 K-40 (ICP) 1.86 1.68 1.50 1.88 Mn-54 < 2.9 < 1.9 < 2.5 < 2.6 Fe-59 < 6.1 < 4.2 < 3.5 < 3.0 Co-58 < 2.4 < 1.1 < 2.2 < 1.5 Co-60 < 2.5 < 2.3 < 2.1 < 2.0 Zn-65 < 5.7 < 4.2 < 4.9 < 6.6 Zr-Nb-95 < 3.2 < 2.6 < 2.4 < 2.3 Cs-134 < 3.0 < 2.7 < 2.6 < 3.4 Cs-137 < 3.7 < 2.5 < 1.7 < 3.0 Ba-La-140 < 3.7 < 1.7 < 2.3 < 3.7 K-1 h Date Collected 01-03-17 04-03-17 07-05-17 12-18-17 Lab Code 'r<M/W-38 'r<M/W-1348 'r<M/W-3234 'r<M/W-6655 Gross alpha 3.6 +/- 1.8 1.9 +/- 1.4 < 2.6 < 1.7 Gross beta 2.6 +/- 1.2 2.9 +/- 1.2 1.8 +/- 1.3 < 1.7 H-3 < 179 < 150 < 178 < 155 K-40 (ICP) 2.30 2.32 2.28 1.60 Mn-54 < 2.6 < 3.1 < 2.0 < 1.9 Fe-59 < 3.9 < 6.2 < 3.2 < 4.3 Co-58 < 2.5 < 3.5 < 1.9 < 2.5 Co-60 < 3.6 < 2.5 < 1.6 < 2.5 Zn-65 < 4.8 < 7.3 < 3.5 < 2.5 Zr-Nb-95 < 3.3 < 3.1 < 4.3 < 4.2 Cs-134 < 3.2 < 4.1 < 2.3 < 2.4 Cs-137 < 3.0 < 3.7 < 3.3 < 2.5 Ba-La-140 < 5.4 < 3.1 < 4.8 < 7.3

• Strontium analyses required on samples from K-1g only. 41 Table 17. Indicator Date Collected Lab Code Gross beta H-3 K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 Date Collected Lab Code Gross beta H-3 K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 KPS Well water, analyses for gross beta, tritium, potassium-40

, and gamma-emitting isotopes. Collection

Quarterly

. Sample Description and Concentration (pCi/L) 01-03-17 04-03-17 07-05-17 10-02-17 KWW-39 KWW-1349 KWW-3235 KWW-5051 2.5 +/- 0.8 < 1.1 3.7 +/- 1.5 < 2.3 < 179 < 150 < 178 < 143 0.78 0.77 3.71 0.82 < 2.8 < 2.7 < 2.4 < 2.6 < 4.8 < 3.8 < 4.2 < 3.2 < 3.6 < 2.5 < 2.5 < 2.6 < 1.5 < 1.4 < 2.2 < 1.7 < 2.8 < 4.2 < 2.2 < 7.2 < 1.9 < 3.6 < 3.7 < 3.1 < 2.9 < 2.7 < 2.4 < 2.6 < 2.2 < 3.0 < 1.8 < 3.0 < 5.5 < 1.8 < 7.3 < 4.8 01-03-17 04-03-17 07-05-17 10-02-17 KWW-40 KWW-1350 KWW-3236 KWW-5052 < 0.9 < 0.9 < 0.9 < 0.9 < 179 < 150 < 178 < 143 < 0.30 0.28 < 0.30 < 0.30 < 2.8 < 2.1 < 2.4 < 1.9 < 2.9 < 2.9 < 7.4 < 3.5 < 2.6 < 1.9 < 2.2 < 2.1 < 2.6 < 2.1 < 1.6 < 1.5 < 4.2 < 1.7 < 3.8 < 3.7 < 3.3 < 3.4 < 4.6 < 2.3 < 2.9 < 2.8 < 2.8 < 2.8 < 3.4 < 3.0 < 3.1 < 3.5 < 3.3 < 4.4 < 13.4 < 4.7 42 Table 17. Indicator Date Collected Lab Code Gross beta H-3 K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 Date Collected Lab Code Gross beta H-3 K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 KPS Well water, analyses for gross beta, tritium, potassium-40 , and gamma-emitting isotopes. Collection

Quarterly

. Sample Description and Concentra tion (pCi/L) 01-03-17 04-03-17 07-05-17 10-02-17 KWW-42 KWW-1352 KWW-3238 KWW-5054 6.5 +/- 0.9 < 1.0 1.7 +/- 0.8 < 1.1 < 179 < 150 < 178 < 143 8.86 0.46 1.31 1.30 < 2.2 < 3.4 < 2.2 < 2.5 < 4.0 < 4.1 < 5.9 < 3.7 < 1.9 < 3.0 < 2.3 < 2.6 < 1.6 < 2.5 < 2.1 < 1.5 < 3.1 < 2.6 < 2.7 < 4.1 < 2.9 < 2.5 < 4.0 < 2.8 < 2.8 < 3.4 < 2.1 < 2.9 < 1.6 < 2.1 < 1.8 < 3.1 < 3.7 < 3.2 < 10.2 < 5.2 01-03-17 04-03-17 07-05-17 10-02-17 KWW-41 KWW-1351 KWW-3237 KWW-5053 < 0.9 1.1 +/- 0.6 < 0.9 < 0.9 < 179 < 150 < 178 < 143 1.02 1.05 1.06 0.99 < 1.7 < 3.1 < 1.9 < 2.9 < 4.4 < 6.3 < 5.1 < 6.0 < 2.6 < 1.8 < 3.7 < 4.2 < 1.7 < 1.5 < 1.4 < 4.0 < 4.0 < 5.7 < 2.6 < 8.6 < 2.3 < 3.6 < 3.6 < 4.1 < 2.9 < 3.1 < 2.8 < 4.2 < 2.6 < 2.8 < 2.3 < 4.9 < 3.5 < 4.0 < 9.4 < 5.5 43 Table 18. Location Date Collected Lab Code Gross Alpha Gross Beta Be-7 K-40 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 KPS Domestic meat samples (chickens) , analyses of flesh for gross alpha, gross beta, and gamma-emitting isotopes. Annual collection . Sample Description and Concentration (pCi/g wet) Indicator Control K-24 K-32 09-06-17 09-06-17 KME-4579 KME-4580 < 0.033 < 0.034 2.01 +/- 0.087 1.31 +/- 0.072 < 0.18 < 0.11 2.00 +/- 0.26 1.76 +/- 0.34 < 0.028 < 0.025 < 0.020 < 0.020 < 0.020 < 0.023 < 0.076 < 0.099 < 0.014 < 0.013 < 0.013 < 0.017 < 0.036 < 0.027 < 0.090 < 0.117 44 KPS Table 19. Eggs, analyses for gross beta, strontium-89, strontium-90 and gamma emitting isotopes. Collection: Quarterly Sample Description and Concentration (pCi/g wet) Location K-24 Date Collected 01-03-17 04-03-17 07-05-17 10-02-17 Lab Code KE-66 KE-1330 KE-3221 KE-5055 Gross beta 1.52 +/- 0.04 1.46 +/- 0.04 1.59 +/- 0.04 1.63 +/- 0.04 Sr-89 < 0.005 < 0.003 < 0.006 < 0.014 Sr-90 < 0.004 < 0.002 < 0.002 < 0.005 Be-7 < 0.056 < 0.040 < 0.069 < 0.048 K-40 1.26 +/- 0.14 1.30 +/- 0.14 1.13 +/- 0.17 1.05+/-0.12 Nb-95 < 0.008 < 0.005 < 0.010 < 0.005 Zr-95 < 0.013 < 0.007 < 0.016 < 0.010 Ru-103 < 0.005 < 0.003 < 0.008 < 0.007 Ru-106 < 0.044 < 0.028 < 0.064 < 0.045 Cs-134 < 0.006 < 0.005 < 0.006 < 0.004 Cs-137 < 0.006 < 0.006 < 0.004 < 0.004 Ce-141 < 0.016 < 0.012 < 0.014 < 0.014 Ce-144 < 0.044 < 0.036 < 0.054 < 0.036 Location K-32 Date Collected 01-03-17 04-03-17 07-05-17 10-02-17 Lab Code KE-68 KE-1331 KE-3222 KE-5056 Gross beta 1.45 +/- 0.04 1.40 +/- 0.04 1.54 +/- 0.05 1.97 +/- 0.06 Sr-89 < 0.004 < 0.003 < 0.006 < 0.019 Sr-90 < 0.003 < 0.002 < 0.002 < 0.009 Be-7 < 0.050 < 0.051 < 0.045 < 0.044 K-40 1.31 +/- 0.14 1.16 +/- 0.13 1.37 +/- 0.14 1.17 +/- 0.13 Nb-95 < 0.004 < 0.007 < 0.006 < 0.005 Zr-95 < 0.010 < 0.009 < 0.012 < 0.006 Ru-103 < 0.005 < 0.006 < 0.006 < 0.005 Ru-106 < 0.053 < 0.035 < 0.046 < 0.046 Cs-134 < 0.005 < 0.005 < 0.005 < 0.006 Cs-137 < 0.006 < 0.005 < 0.004 < 0.004 Ce-141 < 0.009 < 0.017 < 0.013 < 0.016 Ce-144 < 0.029 < 0.033 < 0.043 < 0.031 45 Table 20. Location Date Collected Lab Code . Type Gross beta Sr-89 Sr-90 Be-7 K-40 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 KPS Vegetable and grain samples, analyses for gross beta, strontium-89 , strontium-90, and gamma-emitting isotopes. Annual collection . Sample Description and Concentration (pCi/g wet) Indicator K-23 K-1a 08-01-17 08-01-17 09-06-17 KVE-3902 KVE-3903 KVE-4572 Clover Wheat Corn 5.32 +/- 0.16 7.72 +/- 0.33 3.48 +/- 0.07 < 0.006 < 0.024 < 0.008 < 0.004 < 0.013 < 0.005 1.05 +/- 0.19 2.03 +/- 0.270 < 0.077 5.11 +/- 0.42 4.99 +/- 0.50 1.79+/-0.16 < 0.017 < 0.014 < 0.006 < 0.024 < 0.025 < 0.010 < 0.018 < 0.019 < 0.004 < 0.124 < 0.191 < 0.046 < 0.016 < 0.018 < 0.005 < 0.013 < 0.020 < 0.004 < 0.026 < 0.035 < 0.015 < 0.151 < 0.086 < 0.050 46 Table 20. Location Date Collected Lab Code Type Gross beta Sr-89 Sr-90 Be-7 K-40 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 Date Collected Lab Code Type Gross beta Sr-89 Sr-90 Be-7 K-40 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 KPS Vegetable and grain samples, analyses for gross beta, strontium-89 , strontium-90 , and gamma-emitting isotopes (continued) . Sample Description and Concentration (pCi/g wet) K-26 (control) 09-07-17 09-07-17 09-07-17 KVE-4573 KVE-4574 KVE-4575 Cabbage Green Beans Carrots 2.81 +/- 0.05 3.94 +/- 0.07 3.76 +/- 0.07 < 0.006 < 0.009 < 0.012 < 0.003 < 0.004 < 0.007 < 0.056 < 0.077 < 0.069 2.12 +/- 0.16 2.07 +/- 0.20 3.12+/-0.21 < 0.005 < 0.008 < 0.008 < 0.009 < 0.011 < 0.012 < 0.007 < 0.008 < 0.007 < 0.048 < 0.037 < 0.051 < 0.005 < 0.007 < 0.006 < 0.006 < 0.008 < 0.005 < 0.013 < 0.010 < 0.012 < 0.038 < 0.035 < 0.051 K-26 (control) K-26 (control) 09-07-17 10-03-17 KVE-4577 KVE-5058 Kohlrabi Pumpkin 3.70 +/- 0.07 2.61 +/- 0.05 < 0.008 < 0.011 < 0.004 < 0.006 < 0.052 < 0.045 2.69 +/- 0.20 2.33 +/- 0.17 < 0.007 < 0.007 < 0.009 < 0.008 < 0.008 < 0.005 < 0.039 < 0.028 < 0.006 < 0.005 < 0.006 < 0.003 < 0.012 < 0.011 < 0.032 < 0.036 47 09-07-17 KVE-4576 Melons 3.52 +/- 0.06 < 0.010 < 0.006 < 0.050 2.47 +/- 0.16 < 0.004 < 0.009 < 0.007 < 0.043 < 0.004 < 0.003 < 0.010 < 0.029 KPS Table 21. Cattlefeed , analyses for gross beta, strontium-89 , strontium-90, and gamma-emitting isotopes. Collection: First Quarter. Sample Description and Concentration (pCi/g wet) Control Location K-3 K-35 K-3 K-35 Date Collected 01-03-17 01-03-17 01-04-17 01-03-17 Lab Code KCF-76 KCF-79 KCF-82 KCF-85 Type Hay Hay Silage Silage Gross beta 10.88 +/- 0.25 7.80 +/- 0.20 4.60 +/- 0.09 11.07 +/- 0.23 Sr-89 < 0.016 < 0.036 < 0.010 < 0.022 Sr-90 0.022 +/- 0.007 < 0.022 0.006 +/- 0.003 < 0.013 Be-7 0.27 +/- 0.155 0.61 +/- 0.15 0.38 +/- 0.11 < 0.10 K-40 9.26 +/- 0.47 6.41 +/- 0.33 3.97 +/- 0.29 9.27 +/- 0.35 Nb-95 < 0.013 < 0.015 < 0.007 < 0.010 Zr-95 < 0.018 < 0.023 < 0.016 < 0.021 Ru-103 < 0.009 < 0.017 < 0.008 < 0.008 Ru-106 < 0.070 < 0.103 < 0.059 < 0.075 Cs-134 < 0.013 < 0.013 < 0.008 < 0.008 Cs-137 < 0.009 < 0.014 < 0.010 < 0.008 Ce-141 < 0.019 < 0.028 < 0.018 < 0.022 Ce-144 < 0.063 < 0.117 < 0.056 < 0.061 Indicator Location K-5 K-34 K-38 K-39 Date Collected 01-04-17 01-03-17 01-03-17 01-03-17 Lab Code KCF-77 KCF-78 KCF-80 KCF-81 Type Hay Hay Hay Hay Gross beta 18.33 +/- 0.38 5.52 +/- 0.29 12.99 +/- 0.34 14.38 +/- 0.32 Sr-89 < 0.023 < 0.048 < 0.024 < 0.031 Sr-90 0.027 +/- 0.013 < 0.030 < 0.016 < 0.018 Be-7 < 0.14 1.60 +/- 0.23 < 0.07 0.67 +/- 0. 12 K-40 12.90 +/- 0.57 4. 14 +/- 0.47 11.76 +/- 0.31 10.31 +/- 0.33 Nb-95 < 0.018 < 0.018 < 0.006 < 0.012 Zr-95 < 0.024 < 0.033 < 0.011 < 0.021 Ru-103 < 0.011 < 0.019 < 0.007 < 0.010 Ru-106 < 0. 108 < 0. 165 < 0.089 < 0. 102 Cs-134 < 0.015 < 0.018 < 0.009 < 0.010 Cs-137 < 0.013 < 0.020 < 0.008 < 0.009 Ce-141 < 0.027 < 0.030 < 0.017 < 0.021 Ce-144 < 0.096 < 0.099 < 0.054 < 0.054 48 Table 21. Location Date Collected Lab Code Type Gross beta Sr-89 Sr-90 Be-7 K-40 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 KPS Cattlefeed, analyses for gross beta, strontium-89, strontium -90, and gammaemitting isotopes (continued) . Sample Description and Concentration (pCi/g wet) Indicator K-5 K-34 K-38 K-39 01-03-17 01-03-17 01-03-17 01-03-17 KCF-83 KCF-84 KCF-86 KCF-87 Silage Silage Silage Silage 11.68+/-0.26 11.88 +/- 0.25 7.30 +/- 0.20 9.05 +/- 0.21 < 0.021 < 0.022 < 0.025 < 0.020 0.012 +/- 0.007 < 0.012 < 0.014 < 0.012 < 0.10 1.52 +/- 0.19 0.41 +/- 0.09 0.25 +/- 0.11 8.60 +/- 0.40 9.92 +/- 0.50 4.39 +/- 0.25 7.77 +/- 0.39 < 0.006 < 0.012 < 0.007 < 0.010 < 0.019 < 0.015 < 0.016 < 0.021 < 0.008 < 0.014 < 0.009 < 0.011 < 0.084 < 0. 142 < 0.034 < 0.090 < 0.010 < 0.012 < 0.007 < 0.011 < 0.009 < 0.010 < 0.007 < 0.010 < 0.017 < 0.027 < 0.014 < 0.015 < 0.042 < 0.091 < 0.077 < 0.079 49 KPS Table 22. Grass, analyses for gross beta, strontium-89 , strontium-90 , and gamma-emitting isotopes. Collection: Quarterly , April through December Units: pCi/g wet Sample Description and Concentrat ion Indicator Location K-1b K-1f K-5 Date Collected 06-01-17 06-01-17 06-01-17 Lab Code KG-2641 KG-2642 KG-2644 Gross beta 7.93 +/- 0.17 6.70+/-0.13 6.55 +/- 0.13 Sr-89 < 0.010 < 0.008 < 0.006 Sr-90 < 0.005 < 0.003 < 0.003 Be-7 0.67 +/- 0.25 0.50 +/- 0.16 0.64 +/- 0.14 K-40 6.61 +/- 0.56 5.40 +/- 0.44 5.69 +/- 0.38 Mn-54 < 0.019 < 0.013 < 0.012 Co-58 < 0.017 < 0.008 < 0.009 Co-60 < 0.022 <0.013 < 0.013 Nb-95 < 0.012 < 0.011 < 0.014 Zr-95 < 0.025 < 0.024 < 0.013 Ru-103 < 0.022 < 0.013 < 0.009 Ru-106 < 0.147 < 0.078 < 0.053 Cs-134 < 0.019 < 0.014 < 0.009 Cs-137 < 0.016 < 0.019 < 0.013 Ce-141 < 0.039 < 0.028 < 0.025 Ce-144 < 0.113 < 0.084 < 0.054 Indicator Location K-38 K-39 K-3 Date Collected 06-01-17 06-01-17 06-01-17 Lab Code KG-2648 KG-2649 KG-2643 Gross beta 9.83 +/- 0.23 6.91 +/-0.13 7.86+/-0.15 Sr-89 < 0.014 < 0.008 < 0.008 Sr-90 < 0.007 < 0.004 < 0.004 Be-7 3.10+/-0.21 0.82 +/- 0.19 0.54 +/- 0.12 K-40 7.77 +/- 0.36 5.43 +/- 0.44 7.00 +/- 0.39 Mn-54 < 0.010 < 0.018 < 0.013 Co-58 < 0.011 < 0.011 < 0.008 Co-60 < 0.007 < 0.013 < 0.010 Nb-95 < 0.012 < 0.027 < 0.014 Zr-95 < 0.019 < 0.018 < 0.016 Ru-103 < 0.011 < 0.020 < 0.007 Ru-106 < 0.084 < 0.137 < 0.054 Cs-134 < 0.010 <0.018 < 0.011 Cs-137 < 0.011 < 0.016 < 0.006 Ce-141 < 0.018 < 0.036 < 0.019 Ce-144 < 0.091 <0.131 < 0.055 50 K-34 06-01-17 KG-2645 7.88+/-0.15 < 0.008 < 0.004 0.69 +/- 0.12 5.30 +/- 0.34 < 0.010 < 0.008 < 0.008 < 0.011 < 0.020 < 0.009 < 0.089 < 0.009 < 0.009 < 0.023 < 0.087 Control K-35 06-01-17 KG-2646 7.74 +/- 0.14 < 0.008 < 0.004 1.02 +/-0.17 7.51 +/- 0.49 < 0.016 <0.013 < 0.009 < 0.018 < 0.019 < 0.018 < 0.109 < 0.014 < 0.014 < 0.030 < 0.122 KPS Table 22. Grass samples, analyses for gross beta, strontium-89 , strontium -90, and gamma-emitting isotopes (continued) . Sample Description and Concentration Indicator Location K-1b K-1f K-5 K-34 Date Collected 08-01-17 08-01-17 08-01-17 08-01-17 Lab Code KG-3878 KG-3879 KG-3881 KG-3882 Gross beta 8.49 +/- 0.29 13.33 +/- 0.48 8.12 +/- 0.27 6.06 +/- 0.21 Sr-89 <0.013 < 0.024 < 0.013 < 0.008 Sr-90 < 0.006 0.014 +/- 0.006 < 0.006 < 0.004 Be-7 4.29 +/- 0.36 6.72 +/- 0.22 2.70 +/- 0.11 2.21 +/- 0.11 K-40 7.91 +/- 0.62 12.27 +/- 0.39 6.52 +/- 0.20 5.01 +/- 0.17 Mn-54 <0.017 < 0.011 < 0.006 < 0.006 Co-58 <0.017 < 0.008 < 0.005 < 0.006 Co-60 < 0.011 < 0.014 < 0.007 < 0.006 Nb-95 < 0.023 < 0.013 < 0.005 < 0.007 Zr-95 < 0.028 < 0.023 < 0.008 <0.010 Ru-103 < 0.015 < 0.008 < 0.009 < 0.007 Ru-106 < 0.180 < 0.106 < 0.056 < 0.060 Cs-134 < 0.018 < 0.011 < 0.006 < 0.006 Cs-137 < 0.017 < 0.011 < 0.008 < 0.006 Ce-141 < 0.035 < 0.025 < 0.010 < 0.014 Ce-144 < 0.120 < 0.092 < 0.055 < 0.053 Indicator Control Location K-38 K-39 K-3 K-35 Date Collected 08-01-17 08-01-17 08-01-17 08-01-17 Lab Code KG-3884 KG-3885 KG-3880 KG-3883 Gross beta 5.69 +/- 0.22 6.73 +/- 0.23 8.73 +/- 0.25 22.80 +/- 0.70 Sr-89 < 0.011 < 0.010 < 0.008 < 0.027 Sr-90 < 0.004 < 0.005 < 0.004 < 0.013 Be-7 3.15 +/- 0.33 3.31 +/- 0.29 1.45 +/- 0.25 6.52 +/- 0.46 K-40 3.92 +/- 0.48 5.41 +/- 0.49 7.41 +/- 0.54 19.05 +/- 0.92 Mn-54 < 0.023 < 0.009 < 0.018 < 0.018 Co-58 < 0.015 < 0.017 < 0.017 < 0.023 Co-60 < 0.018 <0.015 < 0.014 < 0.023 Nb-95 < 0.023 < 0.013 < 0.020 < 0.022 Zr-95 < 0.030 < 0.029 < 0.031 < 0.030 Ru-103 < 0.023 < 0.017 < 0.017 < 0.017 Ru-106 < 0.094 < 0.128 < 0.118 < 0.183 Cs-134 <0.018 <0.015 < 0.016 < 0.022 Cs-137 < 0.020 < 0.016 < 0.007 < 0.022 Ce-141 < 0.030 < 0.034 < 0.030 < 0.037 Ce-144 < 0.125 < 0.118 < 0.106 < 0.182 51 KPS Table 22. Grass samples, analyses for gross beta, strontium-89 , strontium-90 , and gamma-emitting isotopes (continued) . Sample Description and Concentration (pCi/g wet) Indicator Location K-1b K-1f K-5 K-34 Date Collected 10-02-17 10-02-17 10-02-17 10-02-17 Lab Code KG-5059 KG-5061 KG-5063 KG-5064 Gross beta 9.04 +/- 0.25 7.93 +/- 0.21 16.77 +/- 0.40 6.52+/-0.18 Sr-89 < 0.053 < 0.025 < 0.044 < 0.025 Sr-90 < 0.040 0.034 +/- 0.017 < 0.035 < 0.018 Be-7 7.50 +/- 0.50 4.06 +/- 0.40 4.80 +/- 0.51 3.40 +/- 0.30 K-40 8.58 +/- 0.70 5.75 +/- 0.66 12.46 +/- 1.03 5.73 +/- 0.49 Mn-54 < 0.018 < 0.022 < 0.031 < 0.011 Co-58 < 0.017 < 0.017 < 0.033 < 0.010 Co-60 < 0.019 < 0.021 <0.018 < 0.013 Nb-95 < 0.017 < 0.018 < 0.022 < 0.019 Zr-95 < 0.024 < 0.033 < 0.055 < 0.025 Ru-103 < 0.022 < 0.025 < 0.035 < 0.016 Ru-106 < 0.129 < 0.171 < 0.272 < 0.146 Cs-134 < 0.024 < 0.023 < 0.033 < 0.017 Cs-137 < 0.030 < 0.026 < 0.038 < 0.015 Ce-141 < 0.049 < 0.040 < 0.044 < 0.037 Ce-144 < 0.156 < 0.122 < 0.168 < 0.094 Indicator Control Location K-38 K-39 K-3 K-35 Date Collected 10-02-17 10-02-17 10-02-17 10-02-17 Lab Code KG-5066 KG-5067 KG-5062 KG-5065 Gross beta 27.36 +/- 1.02 9.43 +/- 0.25 13.61 +/- 0.30 31.96 +/- 0.63 Sr-89 < 0.270 < 0.040 < 0.032 < 0.067 Sr-90 < 0.213 < 0.030 < 0.024 < 0.046 Be-7 6.36 +/- 0.51 3.83 +/- 0.16 2.33 +/- 0.25 3.00 +/- 0.19 K-40 10.81 +/- 0.88 7.40 +/- 0.28 10.93 +/- 0.61 28.03 +/- 0.64 Mn-54 < 0.020 < 0.010 < 0.016 < 0.018 Co-58 < 0.029 < 0.009 < 0.008 < 0.014 Co-60 < 0.023 < 0.011 < 0.007 < 0.017 Nb-95 < 0.038 < 0.006 < 0.019 < 0.023 Zr-95 < 0.050 < 0.016 < 0.025 < 0.034 Ru-103 < 0.029 < 0.007 < 0.018 < 0.017 Ru-106 < 0.210 < 0.080 < 0.109 < 0.151 Cs-134 < 0.028 < 0.009 <0.015 < 0.016 Cs-137 < 0.025 < 0.010 < 0.016 < 0.019 Ce-141 < 0.043 < 0.018 < 0.024 < 0.025 Ce-144 < 0.243 < 0.055 < 0.127 < 0.096 52 Table 23. Location Date Collected Lab Code Gross alpha Gross beta Sr-89 Sr-90 Be-7 K-40 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 Date Collected Lab Code Gross alpha Gross beta Sr-89 Sr-90 Be-7 K-40 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 KPS Soil samples, analyses for gross alpha, gross beta, strontium-89 , strontium-90 , and gamma-emitting isotopes. Collection

Semiannually Sample Description and Concentration (pCi/g dry) Indicator K-1f K-5 05-01-17 05-01-17 KSO-1963 KSO-1965 8.30 +/- 2.96 9.83 +/- 3.11 28.14 +/- 3.02 26.92 +/- 2.91 < 0.088 < 0.110 < 0.030 < 0.039 < 0.16 < 0.19 17.70 +/- 0.81 19.39 +/- 0.88 < 0.037 < 0.039 < 0.040 < 0.048 < 0.020 < 0.023 < 0.161 < 0.136 < 0.020 < 0.016 0.14+/-0.03 0.07 +/- 0.02 < 0.067 < 0.084 < 0.097 < 0.107 10-02-17 10-02-17 KSO-5086 KSO-5088 20.68 +/- 1.53 11.17 +/- 5.34 25.82 +/- 1.51 33.83 +/- 4.24 < 0.106 < 0.108 < 0.039 < 0.037 < 0.19 < 0.17 18.38 +/- 0.89 19.58 +/- 0.85 < 0.028 < 0.028 < 0.048 < 0.043 < 0.024 < 0.021 < 0.154 < 0.141 < 0.016 < 0.015 0.06 +/- 0.02 0.05 +/- 0.02 < 0.069 < 0.043 < 0.098 < 0.096 53 Table 23. Location Date Collected Lab Code Gross alpha Gross beta Sr-89 Sr-90 Be-7 K-40 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 Date Collected Lab Code Gross alpha Gross beta Sr-89 Sr-90 Be-7 K-40 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 KPS Soil samples, analyses for gross alpha, gross beta, strontium-89

, strontium-90, and gamma-emitting isotopes (continued ). Sample Description and Concentration (pCi/g dry) Indicator K-34 K-38 K-39 05-01-17 05-01-17 05-01-17 KSO-1966 KSO-1968 KSO-1969 8.91 +/- 3.44 11.67 +/- 3.40 9.16 +/- 3.53 26.06 +/- 3.06 28.71 +/- 2.91 27.62 +/- 3.19 < 0.095 < 0.118 < 0.240 < 0.036 0.062 +/- 0.029 < 0.061 < 0.19 < 0.20 < 0.15 20.05 +/- 0.85 19.66 +/- 0.83 19.45 +/- 0.83 < 0.042 < 0.038 < 0.032 < 0.042 < 0.042 < 0.041 < 0.023 < 0.025 < 0.023 < 0.127 < 0.133 < 0.130 < 0.016 < 0.018 < 0.016 0.09 +/- 0.03 0.11 +/- 0.03 0.10 +/- 0.02 < 0.082 < 0.079 < 0.070 < 0.095 < 0.103 < 0.098 10-02-17 10-02-17 10-02-17 KSO-5089 KSO-5091 KSO-5092 7.20 +/- 3.90 6.68 +/- 2.71 6.79 +/- 3.16 26.98 +/- 3.96 21.66 +/- 2.78 27.96 +/- 3.09 < 0.122 < 0.110 < 0.112 < 0.044 < 0.036 0.044 +/- 0.024 < 0.17 < 0.16 < 0.15 17.95 +/- 0.85 15.90 +/- 0.79 18.99 +/- 0.78 < 0.033 < 0.027 < 0.028 < 0.038 < 0.045 < 0.035 < 0.021 < 0.021 < 0.020 < 0.139 < 0.144 < 0.142 < 0.017 < 0.018 < 0.015 0.08 +/- 0.02 0.07 +/- 0.02 0.06 +/- 0.02 < 0.070 < 0.068 < 0.058 < 0.106 < 0.097 < 0.089 54 Table 23. Location Date Collected Lab Code Gross alpha Gross beta Sr-89 Sr-90 Be-7 K-40 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 Date Collected Lab Code Gross alpha Gross beta Sr-89 Sr-90 Be-7 K-40 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 KPS Soil samples, analyses for gross alpha, gross beta, strontium -89, strontium-90 , and gamma-emitting isotopes (continued) . Sample Description and Concentration (pCi/g dry) Control K-3 K-35 05-01-17 05-01-17 KSO-1964 KSO-1967 6.89 +/- 2.98 9.92 +/- 4.09 23.83 +/- 2.87 26.39 +/- 3.01 < 0.128 < 0.078 < 0.046 < 0.031 < 0.18 < 0.16 17.89 +/- 0.81 16.43 +/- 0.82 < 0.034 < 0.033 < 0.045 < 0.042 < 0.019 < 0.023 < 0.158 < 0.119 < 0.018 < 0.018 0.12 +/- 0.03 0.06 +/- 0.02 < 0.066 < 0.073 < 0.094 < 0.100 10-02-17 10-02-17 KSO-5087 KSO-5090 23.04 +/- 6.92 5.63 +/- 1.65 34.10 +/- 4.55 20.68 +/- 1.53 < 0.150 < 0.104 < 0.050 < 0.036 < 0.16 0.88 +/- 0.30 18.12 +/- 0.83 12.84 +/- 0.78 < 0.026 < 0.036 < 0.039 < 0.040 < 0.022 < 0.020 < 0.144 < 0.128 < 0.017 < 0.022 0.12 +/- 0.02 0.10 +/- 0.02 < 0.043 < 0.069 < 0.105 < 0.106 55 KPS Table 24. Surface water samples, analyses for gross beta, potassium-40 and gamma-emitting isotopes. Collection

Monthly Sample Description and Concentration (pCi/L) Indicator K-1a Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 K-1b Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 01-03-17 KSW-53 < 0.7 11.6 +/- 1.4 11.6 +/- 1.4 5.19 < 3.5 < 3.4 < 2.4 < 1.9 < 4.6 < 3.6 < 3.0 < 3.0 < 4.1 01-03-17 KSW-54 < 0.7 5.0 +/- 0.9 5.0 +/- 0.9 5.30 < 1.7 < 4.9 < 2.0 < 1.9 < 5.1 < 4.5 < 2.4 < 2.5 < 5.0 02-01-17 KSW-378 < 0.7 4.6 +/- 1.0 4.6 +/- 1.0 5.47 < 3.4 < 3.6 < 1.6 < 2.8 < 3.1 < 4.6 < 3.4 < 3.3 < 3.2 02-01-17 KSW-379 < 0.7 4.0 +/- 0.8 4.0 +/- 0.8 3.19 < 2.6 < 4.2 < 3.1 < 2.1 < 1.6 < 3.0 < 3.2 < 3.1 < 2.3 56 03-01-17 KSW-825 2.5 +/- 0.6 5.4 +/- 1.0 7.9 +/- 1.2 6.98 < 2.6 < 5.2 < 2.0 < 2.4 < 3.1 < 2.3 < 3.4 < 3.7 < 3.5 03-01-17 KSW-826 < 0.9 3.5 +/- 0.5 3.5 +/- 0.5 5.17 < 2.1 < 5.4 < 2.1 < 2.2 < 4.6 < 3.7 < 3.5 < 2.3 < 5.1 KPS Table 24. Surface water samples, analyses for gross beta, potassium-40

, and gamma-emitting isotopes (continued) . Indicator K-1 a Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 K-1b Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 Sample Description and Concentration (pCi/L) 04-03-17 05-01-17 KSW-1338 KSW-1918 0.8 +/- 0.4 0.9 +/- 0.4 4.7 +/- 1.0 7.4+/-1.1 5.5+/-1.1 8.3+/-1.2 4.65 5.66 < 1.8 < 5.6 < 2.6 < 4.6 < 2.6 < 3.5 < 2.3 < 4.7 < 2.8 < 4.8 < 1.6 < 4.2 < 2.4 < 5.1 < 2.8 < 5.5 < 1.9 < 5.2 04-03-17 05-01-17 KSW-1339 KSW-1919 < 0.7 < 0.8 4.2 +/- 0.9 5.9 +/- 0.9 4.2 +/- 0.9 5.9 +/- 0.9 2.58 3.59 < 3.6 < 2.4 < 6.6 < 6.1 < 1.9 < 2.4 < 2.8 < 2.8 < 3.4 < 3.6 < 3.2 < 2.2 < 3.8 < 3.7 < 3.1 < 2.5 < 1.5 < 4.3 57 06-01-17 KSW-2613 < 0.7 3.2 +/- 0.9 3.2 +/- 0.9 4.49 < 1.9 < 3.6 < 2.8 < 2.1 < 7.0 < 3.0 < 3.0 < 3.6 < 1.4 06-01-17 KSW-2614 < 0.8 3.2 +/- 0.8 3.2 +/- 0.8 1.92 < 2.5 < 3.4 < 1.6 < 2.0 < 3.9 < 2.3 < 2.7 < 2.8 < 3.0 KPS Table 24. Surface water samples, analyses for gross beta, potassium-40, and gamma-emitting isotopes (continued) . Indicator K-1a Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 K-1b Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 Sample Description and Concentration (pCi/L) 07-05-17 08-01-17 KSW-3224 KSW-3869 < 0.8 < 0.3 4.2 +/- 1.0 8.2 +/- 1.3 4.2+/- 1.0 8.2 +/- 1.3 5.58 10.74 < 5.0 < 2.9 < 10.2 < 5.4 < 3.9 < 2.5 < 5.8 < 3.3 < 8.6 < 6.6 < 5.6 < 4.5 < 5.3 < 3.1 < 5.5 < 3.0 < 9.2 < 3.2 07-05-17 08-01-17 KSW-3225 KSW-3870 < 0.7 1.0 +/- 0.2 2.1 +/- 0.7 2.7 +/- 0.7 2.1 +/- 0.7 3.7 +/- 0.7 2.87 2.67 < 3.7 < 2.1 < 4.3 < 3.5 < 4.7 < 2.5 < 4.3 < 1.9 < 4.5 < 5.0 < 4.7 < 3.1 < 4.8 < 2.6 < 3.8 < 2.7 < 7.4 < 4.4 58 09-06-17 KSW-4563 < 0.7 11.3 +/- 1.4 11.3 +/- 1.4 11.89 < 3.3 < 5.3 < 1.3 < 2.2 < 5.1 < 3.6 < 3.2 < 3.3 < 2.4 09-06-17 KSW-4564 < 0.8 3.2 +/- 0.7 3.2 +/- 0.7 2.69 < 2.4 < 2.4 < 1.7 < 2.0 < 3.2 < 3.5 < 3.0 < 2.8 < 2.9 KPS Table 24. Surface water samples, analyses for gross beta, potassium-40 , and gamma-emitt ing isotopes (continued). Indicator K-1a Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 K-1b Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 Sample Description and Concentration (pCi/L) 10-02-17 11-01-17 KSW-5040 KSW-5781 < 0.7 < 0.7 10.5 +/- 1.4 16.1 +/- 1.6 10.5 +/- 1.4 16.1 +/- 1.6 9.68 14.02 < 3.4 < 2.5 < 7.6 < 2.6 < 2.7 < 3.1 < 2.7 < 1.4 < 3.1 < 5.4 < 4.2 < 2.5 < 4.0 < 3.0 < 3.9 < 2.7 < 5.2 < 3.8 10-02-17 11-01-17 KSW-5041 KSW-5782 < 0.8 0.8 +/- 0.4 3.5 +/- 0.8 2.9 +/- 0.7 3.5 +/- 0.8 3.7 +/- 0.8 2.38 2.54 < 2.0 < 4.8 < 2.6 < 9.8 < 2.1 < 6.0 < 1.7 < 3.9 < 2.2 < 17.0 < 3.2 < 8.1 < 2.4 < 6.8 < 3.0 < 6.3 < 5.0 < 2.3 59 12-04-17 KSW-6296 < 0.7 29.1 +/-2.1 29.1 +/- 2.1 27.22 < 2.1 < 4.2 < 2.5 < 3.3 < 4.0 < 3.2 < 2.5 < 2.5 < 1.3 12-04-17 KSW-6297 < 0.8 3.1 +/-0.7 3.1 +/-0.7 2.37 < 2.5 < 4.7 < 3.9 < 4.2 < 6.0 < 3.9 < 3.9 < 2.8 < 3.0 KPS Table 24. Surface water samples, analyses for gross beta, potassium-40 and gamma-emitting isotopes (continued) . Indicator K-1d Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 K-1e Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 Sample Description and Concentration (pCi/L) 01-03-17 02-01-17 KSW-55 KSW-380 < 0.7 < 0.7 2.4 +/- 0.5 1.5 +/- 0.4 2.4 +/- 0.5 1.5 +/- 0.4 1.25 1.34 < 1.9 < 6.3 < 4.5 < 7.4 < 2.4 < 4.9 < 2.8 < 4.5 < 8.3 < 5.4 < 3.7 < 6.6 < 3.2 < 5.7 < 2.7 < 5.4 < 4.7 < 4.5 01-03-17 02-01-17 KSW-56 KSW-381 < 0.8 < 0.7 4.6 +/- 1.0 2.6 +/- 0.9 4.6 +/- 1.0 2.6 +/- 0.9 2.28 2.40 < 1.6 < 2.0 < 3.4 < 4.5 < 2.1 < 2.2 < 1.1 < 2.5 < 2.3 < 5.1 < 4.0 < 1.7 < 3.3 < 2.9 < 3.3 < 3.1 < 5.4 < 2.3 60 03-01-17 KSW-827 < 0.7 1.8 +/- 0.5 1.8 +/- 0.5 1.64 < 2.5 < 4.7 < 3.0 < 2.3 < 3.6 < 2.9 < 2.8 < 2.1 < 2.3 03-01-17 KSW-828 1.3 +/- 0.4 2.5 +/- 0.8 3.8 +/- 0.9 3.00 < 2.9 < 5.1 < 1.3 < 1.9 < 3.8 < 3.6 < 2.9 < 3.0 < 2.9 KPS Table 24. Surface water samples, analyses for gross beta, potassium-40 , and gamma-emitting isotopes (continued) . Indicator K-1d Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 K-1e Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 Sample Description and Concentration (pCi/L) 04-03-17 05-01-17 KSW-1340 KSW-1920 < 0.7 < 0.7 2.1 +/- 0.5 3.7 +/- 0.6 2.1 +/- 0.5 3.7 +/- 0.6 1.51 1.71 < 1.8 < 3.8 < 6.6 < 2.7 < 2.0 < 3.2 < 1.5 < 1.6 < 6.3 < 2.5 < 2.3 < 3.9 < 2.8 < 3.3 < 2.3 < 2.7 < 5.4 < 3.0 04-03-17 05-01-17 KSW-1341 KSW-1921 < 0.7 < 0.7 2.7 +/- 0.9 4.1 +/- 0.9 2.7 +/- 0.9 4.1 +/- 0.9 1.89 2.29 < 2.4 < 2.3 < 5.4 < 6.9 < 2.6 < 1.7 < 2.9 < 1.2 < 5.6 < 4.3 < 2.7 < 2.3 < 2.4 < 3.2 < 3.0 < 3.2 < 4.1 < 2.4 61 06-01-17 KSW-2615 < 0.7 1.6+/-0.4 1.6+/-0.4 1.14 < 1.7 < 3.5 < 0.9 < 2.4 < 4.0 < 2.7 < 2.8 < 1.9 < 2.4 06-01-17 KSW-2616 < 0.7 5.4 +/- 1.2 5.4 +/- 1.2 2.06 < 3.0 < 2.5 < 2.8 < 2.2 < 2.8 < 2.6 < 2.5 < 1.4 < 3.5 KPS Table 24. Surface water samples, analyses for gross beta, potassium-40 , and gamma-emitting isotopes (continued) . Indicator K-1d Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 K-1e Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 Sample Description and Concentration (pCi/L) 07-05-17 08-01-17 KSW-3226 KSW-3871 < 0.8 < 0.3 1.4 +/- 0.4 0.8 +/- 0.4 1.4 +/- 0.4 0.8 +/- 0.4 1.27 1.21 < 2.5 < 1.0 < 7.0 < 3.8 < 2.4 < 1.8 < 2.6 < 1.3 < 5.9 < 2.8 < 3.4 < 3.1 < 2.9 < 1.6 < 3.2 < 1.7 < 5.5 < 7.8 07-05-17 08-01-17 KSW-3227 KSW-3872 < 0.7 < 0.3 3.6 +/- 1.0 2.2 +/- 0.8 3.6 +/- 1.0 2.2 +/- 0.8 2.30 3.10 < 1.6 < 1.6 < 5.1 < 3.7 < 2.5 < 1.7 < 1.6 < 1.4 < 3.3 < 3.4 < 3.0 < 2.7 < 3.3 < 1.5 < 3.0 < 1.8 < 6.0 < 7.4 62 09-06-17 KSW-4565 < 0.7 1.8 +/- 0.4 1.8 +/- 0.4 1.32 < 2.3 < 3.7 < 2.1 < 1.8 < 3.2 < 2.4 < 2.8 < 1.8 < 1.7 09-06-17 KSW-4566 < 0.7 2.1 +/- 0.8 2.1 +/- 0.8 2.95 < 1.4 < 3.7 < 1.8 < 1.9 < 2.8 < 2.0 < 3.1 < 3.0 < 2.6 KPS Table 24. Surface water samples, analyses for gross beta, potassium-40, and gamma-emitting isotopes (continued) . Indicator K-1d Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 K-1e Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 Sample Descripti on and Concentration (pCi/L) 10-02-17 11-01-17 KSW-5042 KSW-5783 < 0.7 < 0.7 3.2 +/- 0.6 1.5+/-0.4 3.2 +/- 0.6 1.5 +/- 0.4 1.30 1.15 < 4.3 < 2.6 < 5.2 < 2.1 < 3.7 < 1.6 < 2.2 < 1.8 < 3.7 < 3.5 < 5.1 < 3.3 < 3.9 < 3.0 < 3.7 < 1.9 < 5.6 < 2.9 10-02-17 11-01-17 KSW-5043 KSW-5784 < 0.7 < 0.8 3.2 +/- 0.9 3.0 +/- 0.9 3.2 +/- 0.9 3.0 +/- 0.9 2.15 2.69 < 2.4 < 3.0 < 5.6 < 4.9 < 1.5 < 1.9 < 2.5 < 1.3 < 4.2 < 4.3 < 3.3 < 2.5 < 2.9 < 3.4 < 2.8 < 2.9 < 3.7 < 3.1 63 12-04-17 KSW-6298 < 0.7 1.6 +/- 0.5 1.6 +/- 0.5 1.18 < 3.1 < 6.5 < 2.7 < 2.8 < 5.3 < 3.9 < 3.3 < 2.5 < 2.2 12-04-17 KSW-6299 < 0.8 5.9 +/- 1.1 5.9 +/- 1.1 2.82 < 2.0 < 4.0 < 2.1 < 2.6 < 4.9 < 2.0 < 3.0 < 3.7 < 2.3 KPS Table 24. Surface water samples, analyses for gross beta, potassium-40 and gamma-emitting isotopes (continued) . Sample Description and Concentrat ion (pCi/L) Indicator K-1k Date Collected 01-03-17 02-01-17 03-01-17 Lab Code KSW-57 KSW-382 KSW-829 Gross beta Suspended Solids < 0.7 < 1.0 < 0.7 Dissolved Solids 18.1 +/- 1.5 6.9 +/- 1.1 5.0 +/- 1.0 Total Residue 18.1 +/- 1.5 6.9 +/- 1.1 5.0 +/- 1.0 K-40 (ICP) 9.59 7.62 4.85 Mn-54 < 1.9 < 1.8 < 2.0 Fe-59 < 4.8 < 5.0 < 3.1 Co-58 < 3.0 < 2.3 < 2.3 Co-60 < 2.4 < 1.3 < 1.7 Zn-65 < 3.3 < 4.0 < 2.1 Zr-Nb-95 < 2.4 < 2.1 < 1.9 Cs-134 < 2.8 < 3.0 < 3.0 Cs-137 < 2.7 < 3.6 < 3.0 Ba-La-140 < 5.3 < 1.2 < 3.8 Date Collected 04-03-17 05-01-17 06-01-17 Lab Code KSW-1342 KSW-1922 KSW-2617 Gross beta Suspended Solids < 0.6 < 0.8 < 0.8 Dissolved Solids 6.1 +/- 1.1 2.0 +/- 0.8 4.9 +/- 1.0 Total Residue 6.1 +/- 1.1 2.0 +/- 0.8 4.9 +/- 1.0 K-40 (ICP) 5.40 2.70 6.42 Mn-54 < 3.2 < 2.0 < 2.9 Fe-59 < 4.9 < 6.0 < 3.6 Co-58 < 2.5 < 1.9 < 2.0 Co-60 < 2.5 < 1.9 < 2.4 Zn-65 < 2.2 < 2.1 < 3.7 Zr-Nb-95 < 3.9 < 3.6 < 3.0 Cs-134 < 3.4 < 2.9 < 2.8 Cs-137 < 3.9 < 3.2 < 2.8 Ba-La-140 < 6.3 < 2.5 < 1.7 64 KPS Table 24. Surface water samples, analyses for gross beta, potassium-40, and gamma-emitting isotopes (continued) . Indicator K-1k Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 Sample Descriptio n and Concentration (pCi/L) 07-05-17 08-01-17 KSW-3228 KSW-3873 < 0.6 < 0.3 2.2 +/- 0.8 < 1.2 2.2 +/- 0.8 < 1.2 2.42 0.28 < 2.0 < 1.5 < 3.2 < 4.1 < 2.2 < 1.6 < 1.8 * < 0.9 < 4.1 < 2.1 < 3.7 < 2.6 < 3.3 < 1.3 < 1.9 < 1.3 < 7.0 < 6.8 10-02-17 11-01-17 KSW-5044 KSW-5785 < 0.8 < 0.7 11.8 +/- 1.4 5.1 +/- 1.0 11.8 +/- 1.4 5.1 +/- 1.0 4.29 4.17 < 2.1 < 3.1 < 4.2 < 4.4 < 2.6 < 2.9 < 1.3 < 1.8 < 2.4 < 2.2 < 2.5 < 1.9 < 2.6 < 2.9 < 2.5 < 2.7 < 4.1 < 3.4 65 09-06-17 KSW-4567 < 0.8 4.4 +/- 1.0 4.4 +/- 1.0 3.05 < 3.3 < 5.6 < 2.2 < 2.6 < 3.6 < 4.5 < 4.0 < 4.4 < 3.5 12-04-17 KSW-6300 < 0.7 4.7 +/- 1.0 4.7 +/- 1.0 3.23 < 3.1 < 4.1 < 2.0 < 3.0 < 6.4 < 3.2 < 3.1 < 3.1 < 3.6 KPS Table 24. Surface water samples, analyses for gross beta, potassium-40 and gamma-emitting isotopes. Collection

Monthly K-9 (Raw) Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 K-9 {Tap) Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 Sample Description and Concentration (pCi/L) 01-03-17 02-01-17 KSW-58 KSW-383 < 0.7 < 0.7 1.4+/-0.4 1.4+/-0.4 1.4+/-0.4 1.4 +/- 0.4 1.16 1.18 < 1.8 < 4.3 < 5.5 < 4.7 < 1.8 < 2.4 < 1.9 < 3.2 < 2.1 < 4.3 < 3.1 < 3.2 < 2.2 < 4.0 < 2.5 < 4.0 < 3.5 < 3.9 01-03-17 02-01-17 KSW-59 KSW-384 < 0.7 < 0.7 0.9 +/- 0.4 2.4 +/- 0.7 0.9 +/- 0.4 2.4 +/- 0.7 1.21 1.19 < 1.9 < 2.0 < 6.5 < 6.7 < 1.4 < 2.7 < 2.5 < 3.9 < 3.2 < 6.2 < 3.2 < 3.8 < 2.5 < 3.9 < 2.9 < 2.9 < 4.4 < 3.4 66 03-01-17 KSW-830 < 0.8 1.0 +/- 0.4 1.0 +/- 0.4 1.20 < 2.2 < 4.8 < 3.0 < 2.8 < 3.3 < 3.0 < 3.8 < 2.7 < 3.7 03-01-17 KSW-831 < 0.7 1.0 +/- 0.4 1.0+/-0.4 1.17 < 2.1 < 4.5 < 2.6 < 2.6 < 4.2 < 2.4 < 3.3 < 3.3 < 3.1 KPS Table 24. Surface water samples, analyses for gross beta, potassium-40, and gamma-emitting isotopes (continued)

. K-9 (Raw) Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 K-9 (Tap) Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 Sample Description and Concentrat ion (pCi/L) 04-03-17 05-01-17 KSW-1343 KSW-1923 < 0.8 < 0.6 1.4 +/- 0.4 3.1 +/- 0.6 1.4 +/- 0.4 3.1 +/- 0.6 1.16 1.15 < 2.9 < 2.4 < 3.4 < 5.5 < 2.9 < 1.6 < 3.1 < 2.7 < 2.7 < 7.1 < 3.1 < 3.4 < 3.1 < 3.4 < 2.5 < 3.9 < 3.5 < 4.2 04-03-17 05-01-17 KSW-1344 KSW-1924 < 0.7 < 0.8 1.5 +/- 0.4 1.4 +/- 0.4 1.5 +/- 0.4 1.4 +/- 0.4 1.23 1.16 < 2.9 < 3.0 < 5.0 < 4.9 < 2.8 < 1.9 < 2.5 < 2.5 < 3.2 < 2.3 < 3.2 < 3.2 < 2.9 < 3.2 < 2.8 < 2.4 < 2.3 < 4.0 67 06-01-17 KSW-2618 < 0.6 1.1 +/- 0.2 1.1 +/- 0.2 1.10 < 3.7 < 7.2 < 3.0 < 2.7 < 4.4 < 4.4 < 4.3 < 3.7 < 3.8 06-01-17 KSW-2619 < 0.8 1.4 +/- 0.4 1.4 +/- 0.4 1.09 < 2.4 < 3.7 < 2.9 < 2.0 < 5.1 < 1.8 < 3.2 < 3.1 < 1.7 KPS Table 24. Surface water samples, analyses for gross beta, potassium -40, and gamma-emitting isotopes (continued) . K-9 (Raw) Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 K-9 (Tap) Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 Sample Description and Concentration (pCi/L) 07-05-17 08-01-17 KSW-3229 KSW-3874 < 0.8 < 0.4 0.7 +/- 0.4 1.0 +/- 0.4 0.7 +/- 0.4 1.0 +/- 0.4 1.17 1.15 < 4.8 < 1.2 < 8.5 < 2.1 < 5.8 < 1.7 < 6.2 < 1.2 < 4.1 < 2.2 < 6.5 < 2.0 < 5.2 < 1.1 < 6.1 < 1.1 < 11.5 < 4.6 07-05-17 08-01-17 KSW-3230 KSW-3875 < 0.7 < 0.7 0.9 +/- 0.4 0.8 +/- 0.4 0.9 +/- 0.4 0.8 +/- 0.4 1.18 1.18 < 2.9 < 1.1 < 11.5 < 2.9 < 4.0 < 1.0 < 3.2 < 0.9 < 5.4 < 1.7 < 2.9 < 1.8 < 4.2 < 1.1 < 4.2 < 1.0 < 3.1 < 5.9 68 09-06-17 KSW-4568 < 0.6 1.0 +/- 0.4 1.0 +/- 0.4 1.41 < 2.8 < 4.4 < 1.4 < 1.9 < 2.1 < 2.3 < 3.5 < 2.5 < 3.6 09-06-17 KSW-4569 < 0.7 0.8 +/- 0.4 0.8 +/- 0.4 1.44 < 2.3 < 1.7 < 1.2 < 1.7 < 4.0 < 3.0 < 2.8 < 2.4 < 3.1 KPS Table 24. Surface water samples, analyses for gross beta, potassium-40 , and gamma-emitting isotopes (continued) . K-9 (Raw) Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 K-9 (Tap) Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 Sample Description and Concentration (pCi/L) 10-02-17 11-01-17 KSW-5045 KSW-5786 < 0.7 < 0.6 3.6 +/- 0.6 1.7 +/- 0.6 3.6 +/- 0.6 1.7 +/- 0.6 1.19 1.08 < 2.8 < 2.0 < 5.2 < 2.1 < 3.1 < 2.8 < 2.8 < 1.0 < 3.7 < 3.3 < 3.9 < 2.5 < 3.6 < 2.9 < 3.8 < 2.7 < 4.4 < 3.1 10-02-17 11-01-17 KSW-5046 KSW-5787 < 0.8 < 0.8 1.9 +/- 0.5 0.9 +/- 0.4 1.9 +/- 0.5 0.9 +/- 0.4 1.17 1.10 < 3.4 < 2.0 < 5.3 < 3.8 < 1.9 < 2.9 < 2.6 < 2.0 < 3.1 < 2.8 < 3.6 < 2.9 < 3.4 < 2.6 < 3.6 < 2.5 < 3.7 < 2.8 69 12-04-17 KSW-6301 < 0.6 1.6 +/- 0.4 1.6+/-0.4 1.16 < 1.3 < 2.9 < 2.7 < 2.3 < 3.4 < 3.3 < 3.0 < 2.8 < 2.5 12-04-17 KSW-6302 < 0.8 1.4 +/- 0.4 1.4+/-0.4 1.16 < 2.6 < 3.8 < 2.1 < 1.9 < 1.6 < 2.5 < 2.6 < 2.9 < 2.5 KPS Table 24. Surface water, analyses for gross beta, potassium-40 and gamma-emitting isotopes (continued). Indicator K-14a Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 K-14b Date Collected Lab Code Gross beta Suspended Solids Dissolved Solids Total Residue K-40 (ICP) Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-Nb-95 Cs-134 Cs-137 Ba-La-140 Sample Description and Concentration (pCi/L) 01-03-17 02-01-17 03-01-17 KSW-60 KSW-385 KSW-832 < 0.7 < 0.7 < 0.7 1.7+/-0.5 3.3 +/- 0.8 2.9 +/- 0.6 1.7+/-0.5 3.3 +/- 0.8 2.9 +/- 0.6 1.34 1.96 1.99 < 2.5 < 2.6 < 4.0 < 5.9 < 4.6 < 5.8 < 2.0 < 2.4 < 3.4 < 1.3 < 2.1 < 1.9 < 3.9 < 3.1 < 3.9 < 3.3 < 2.0 < 3.2 < 2.7 < 3.2 < 3.7 < 1.7 < 2.6 < 3.3 < 4.8 < 2.6 < 3.8 01-03-17 02-01-17 03-01-17 KSW-61 KSW-386 KSW-833 < 0.8 < 0.7 < 0.7 1.7+/-0.4 3.0 +/- 0.8 3.3 +/- 0.6 1.7+/-0.4 3.0 +/- 0.8 3.3 +/- 0.6 1.32 1.96 2.16 < 2.1 < 1.4 < 3.4 < 3.0 < 5.3 < 8.2 < 1.8 < 2.3 < 2.1 < 1.9 < 2.4 < 3.2 < 3.5 < 2.1 < 3.4 < 3.2 < 1.8 < 3.8 < 2.3 < 2.8 < 3.4 < 2.4 < 2.6 < 4.0 < 5.8 < 3.5 < 5.2 70 KPS Table 24. Surface water, analyses for gross beta, potassium-40 and gamma-emitt ing isotopes (continued ). Sample Description and Concentrat ion (pCi/L) Indicator K-14a Date Collected 04-03-17 05-01-17 06-01-17 Lab Code KSW-1345 KSW-1925 KSW-2620 Gross beta Suspended Solids < 0.8 0.9 +/- 0.4 < 0.7 Dissolved Solids 2.3 +/- 0.5 1.6 +/- 0.4 1.3+/-0.4 Total Residue 2.3 +/- 0.5 2.5 +/- 0.6 1.3+/-0.4 K-40 (ICP) 1.71 1.50 1.13 Mn-54 < 2.9 < 2.0 < 4.2 Fe-59 < 2.6 < 6.6 < 6.1 Co-58 < 3.4 < 2.0 < 3.5 Co-60 < 1.9 < 1.8 < 3.3 Zn-65 < 4.8 < 5.2 < 4.0 Zr-Nb-95 < 2.6 < 3.2 < 4.7 Cs-134 < 2.5 < 2.7 < 4.0 Cs-137 < 3.1 < 2.4 < 3.5 Ba-La-140 < 4.6 < 4.4 < 2.0 K-14b Date Collected 04-03-17 05-01-17 06-01-17 Lab Code KSW-1346 KSW-1926 KSW-2621 Gross beta Suspended Solids < 0.7 < 0.8 < 0.8 Dissolved Solids 3.1 +/- 0.6 2.4 +/- 0.5 1.0 +/- 0.4 Total Residue 3.1 +/- 0.6 2.4 +/- 0.5 1.0+/-0.4 K-40 (ICP) 1.66 1.54 1.14 Mn-54 < 2.3 < 2.7 < 2.6 Fe-59 < 7.0 < 6.4 < 7.9 Co-58 < 3.6 < 2.5 < 2.0 Co-60 < 3.0 < 2.0 < 2.9 Zn-65 < 4.6 < 2.6 < 4.5 Zr-Nb-95 < 2.9 < 3.9 < 4.4 Cs-134 < 3.3 < 2.8 < 3.6 Cs-137 < 2.0 < 2.4 < 2.5 Ba-La-140 < 3.7 < 3.3 < 3.4 71 KPS Table 24. Surface water, analyses for gross beta, potassium-40 and gamma-emitting isotopes (continued). Sample Description and Concentration (pCi/L) Indicator K-14a Date Collected 07-05-17 08-01-17 09-06-17 Lab Code KSW-3231 KSW-3876 KSW-4570 Gross beta Suspended Solids < 0.8 < 0.7 < 0.8 Dissolved Solids 0.9 +/- 0.4 0.9 +/- 0.4 1.8 +/- 0.5 Total Residue 0.9 +/- 0.4 0.9 +/- 0.4 1.8 +/- 0.5 K-40 (ICP) 1.30 1.19 1.56 Mn-54 < 2.0 < 0.7 < 2.8 Fe-59 < 3.6 < 2.2 < 6.6 Co-58 < 2.0 < 1.2 < 2.5 Co-60 < 2.1 < 1.1 < 2.3 Zn-65 < 3.0 < 2.3 < 3.7 Zr-Nb-95 < 3.0 < 1.6 < 2.2 Cs-134 < 2.5 < 1.1 < 2.9 Cs-137 < 1.8 < 1.0 < 2.8 Ba-La-140 < 3.5 < 6.9 < 2.0 K-14b Date Collected 07-05-17 08-01-17 09-06-17 Lab Code KSW-3232 KSW-3877 KSW-4571 Gross beta Suspended Solids < 0.7 < 0.7 < 0.7 Dissolved Solids 1.2+/-0.4 1.1 +/- 0.4 1.0+/-0.4 Total Residue 1.2 +/- 0.4 1.1+/-0.4 1.0 +/- 0.4 K-40 (ICP) 1.25 1.19 1.55 Mn-54 < 2.8 < 1.1 < 1.9 Fe-59 < 3.7 < 3.2 < 2.9 Co-58 < 2.4 < 1.0 < 2.8 Co-60 < 1.5 < 0.9 < 1.0 Zn-65 < 2.8 < 1.8 < 6.0 Zr-Nb-95 < 3.6 < 2.2 < 2.0 Cs-134 < 2.6 < 1.1 < 2.5 Cs-137 < 2.8 < 1.3 < 2.0 Ba-La-140 < 3.7 < 5.0 < 1.6 72 KPS Table 24. Surface water, analyses for gross beta, potassium-40 and gamma-emitting isotopes (continued ). Sample Description and Concentrat ion (pCi/L) Indicator K-14a Date Collected 10-02-17 11-01-17 12-04-17 Lab Code KSW-5047 KSW-5788 KSW-6303 Gross beta Suspended Solids < 0.7 < 0.3 < 0.3 Dissolved Solids 2.3 +/- 0.5 0.8 +/- 0.4 1.7+/-0.5 Total Residue 2.3 +/- 0.5 0.8 +/- 0.4 1.7+/-0.5 K-40 (ICP) 1.21 1.08 1.22 Mn-54 < 3.2 < 2.2 < 4.4 Fe-59 < 2.4 < 2.7 < 4.9 Co-58 < 3.0 < 1.9 < 4.7 Co-60 < 2.2 < 1.6 < 4.1 Zn-65 < 1.7 < 2.9 < 4.3 Zr-Nb-95 < 2.3 < 2.0 < 3.6 Cs-134 < 2.7 < 2.8 < 5.4 Cs-137 < 2.8 < 2.6 < 6.0 Ba-La-140 < 4.8 < 3.8 < 6.7 K-14b Date Collected 10-02-17 11-01-17 12-04-17 Lab Code KSW-5048 KSW-5789 KSW-6304 Gross beta Suspended Solids < 0.8 < 0.3 < 0.3 Dissolved Solids 2.0 +/- 0.5 1.6+/-0.4 1.4+/-0.4 Total Residue 2.0 +/- 0.5 1.6+/-0.4 1.4+/-0.4 K-40 (ICP) 1.19 1.07 1.23 Mn-54 < 4.7 < 2.5 < 2.1 Fe-59 < 8.7 < 6.3 < 5.5 Co-58 < 3.8 < 2.3 < 1.3 Co-60 < 4.8 < 1.5 < 2.6 Zn-65 < 4.5 < 2.3 < 3.1 Zr-Nb-95 < 5.0 < 2.7 < 2.8 Cs-134 < 6.3 < 3.0 < 2.1 Cs-137 < 3.9 < 3.1 < 2.8 Ba-La-140 < 9.7 < 3.2 < 2.6 73 KPS Table 25. Surface water, analyses for tritium, strontium-89 and strontium -90. Collection

Quarterly composites of monthly samples. Location and Collection Period Indicator K-1a 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter K-1b 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter K-1d 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter K-1e 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Lab Code KSW -985 KSW -2926 KSW -4655 KSW -6415 KSW -986 KSW -2927 KSW -4656 KSW -6416 KSW -987 KSW -2928 KSW -4657 KSW -6418 KSW -988 KSW -2929 KSW -4658 KSW -6419 74 H-3 < 154 < 152 < 184 < 149 < 154 < 152 < 184 < 149 < 154 < 152 < 184 < 149 < 154 < 152 < 184 < 149 Concentration pCi/L Sr-89 < 0.8 < 0.9 < 0.9 < 1.0 < 1.0 < 1.0 < 0.9 < 1.0 < 0.9 < 0.9 < 1.3 < 1.1 < 0.8 < 0.8 < 0.7 < 0.9 Sr-90 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.4 < 0.8 < 0.5 < 0.4 < 0.4 < 0.4 < 0.5 KPS Table 25. Surface water, analyses for tritium, strontium-89 and strontium-90 (continued)

. Location and Collection Period H-3 Indicator K-14a 1st Quarter KSW -992 < 2nd Quarter KSW -2933 < 3rd Quarter KSW -4662 < 4th Quarter KSW -6423 365 +/- K-14b 1st Quarter KSW -993 < 2nd Quarter KSW -2934 < 3rd Quarter KSW -4663 < 4th Quarter KSW -6424 457 +/- K-1k 1st Quarter KSW -989 < 2nd Quarter KSW -2930 < 3rd Quarter KSW -4659 < 4th Quarter KSW -6420 < Control K-9 1st Quarter KSW -990 (Raw) < KSW -991 (Tap) < 2nd Quarter KSW -2931 (Raw) < KSW -2932 (Tap) < 3rd Quarter KSW -4660 (Raw) < KSW -4661 (Tap) < 4th Quarter KSW -6421 (Raw) < KSW -6422 (Tap) <

• H-3 analysis was performed on the monthly samples, results as follows: KSW-5047 collected 10/02/17 < 154 pCi/L. KSW-5788 collected 11/01/17 217 +/- 87 pCi/L. KSW-6303 collected 12/04/17 744 +/- 110 pCi/L. b H-3 analysis was performed on the monthly sample, results as follows: KSW-5048 collected 10/02/17 < 154 pCi/L. KSW-5789 collected 11/01/17 206 +/- 86 pCi/L. KSW-6304 collected 12/04/17 872 +/- 115 pCi/L. 75 154 152 184 92 154 152 184 97 154 152 184 149 154 154 152 152 184 184 149 149 Concentration pCi/L Sr-89 Sr-90 < 0.8 < 0.5 < 0.9 < 0.5 < 0.8 < 0.5 < 0.9 < 0.4 < 0.8 < 0.5 < 0.8 < 0.4 < 0.8 < 0.5 < 1.2 < 0.7 < 0.8 < 0.5 < 0.8 < 0.4 < 0.9 < 0.5 < 0.9 < 0.5 < 0.8 < 0.5 < 0.9 < 0.5 < 0.9 < 0.4 < 1.1 < 0.5 < 0.9 < 0.5 < 0.9 < 0.5 < 1.0 < 0.5 < 0.9 < 0.5 Table 26. Collected Lab Code Type Portion Gross beta Sr-89 Sr-90 K-40 Mn-54 Fe-59 Co-58 Co-60 Cs-134 Cs-137 Collected Lab Code Type Portion Gross beta Sr-89 Sr-90 K-40 Mn-54 Fe-59 Co-58 Co-60 Cs-134 Cs-137 KPS Fish, collected at K-1 d, analyses for gross beta, strontium

-89, strontium-90 and gamma-emitting isotopes. Collection: Three times a year Sample Description and Concentration (pCi/g wet) 04-16-17 KF-1972 Carpsucker 3.78 +/- 0.08 NA" NA 2.93 +/- 0.56 < 0.033 < 0.126 < 0.036 < 0.012 < 0.029 < 0.024 NSb 3.05 +/- 0.74 < 0.33 0.18 +/- 0.07 NA" NA NA NA NA NA NA 07-05-17 KF-3866 Lake Trout 3.43 +/- 0.10 NA" 0.60 +/- 0.37 < 0.41 NA 2.81 +/- 0.38 < 0.021 < 0.098 < 0.022 < 0.015 < 0.017 < 0.024 0.20 +/- 0.08 NA" NA NA NA NA NA NA *NA= Not analyzed; analyses not required. b NS -No sample. No fish sample was able to be collected during the fourth quarter due to unfavorab le conditions . 76 KPS Table 27. Slime or aquatic vegetation, analyses for gross beta, strontium-89 , strontium-90, and gamma-emitting isotopes. Collection

Semiannually Sample Description and Concentration (pCi/g wet) Indicators Control Location K-1a K-1b K-1d K-9 Date Collected 06-01-17 06-01-17 06-01-17 06-01-17 Lab Code KSL-2665 KSL-2666 KSL-2667 KSL-2671 Gross beta 4.74+/-0.13 5.97+/-0.15 0.87 +/- 0.08 7.01 +/- 0.17 Sr-89 < 0.006 < 0.011 < 0.010 < 0.011 Sr-90 < 0.002 < 0.004 < 0.004 < 0.004 Be-7 0.57 +/- 0.07 0.24 +/- 0.083 0.98 +/- 0.14 0.58 +/- 0.08 K-40 5.14 +/- 0.17 5.02 +/- 0.16 1.32+/-0.16 5.25 +/- 0.16 Mn-54 < 0.006 < 0.005 < 0.006 < 0.005 Co-58 < 0.004 < 0.006 < 0.007 < 0.005 Co-60 < 0.006 < 0.005 < 0.005 < 0.005 Nb-95 < 0.005 < 0.009 < 0.010 < 0.007 Zr-95 < 0.009 < 0.010 < 0.014 < 0.009 Ru-103 < 0.008 < 0.008 < 0.006 < 0.005 Ru-106 < 0.051 < 0.051 < 0.050 < 0.047 Cs-134 < 0.006 < 0.005 < 0.007 < 0.005 Cs-137 < 0.007 < 0.005 < 0.008 < 0.006 Ce-141 < 0.013 < 0.016 < 0.021 < 0.013 Ce-144 < 0.049 < 0.043 < 0.048 < 0.054 Sb-125 < 0.030 < 0.027 < 0.035 < 0.025 Location K-1e K-1k K-14 Date Collected 06-01-17 06-01-17 06-01-17 Lab Code KSL-2668 KSL-2669 KSL-2672 Gross beta 1.17 +/- 0.09 6.24 +/- 0.16 4.65 +/- 0.22 Sr-89 < 0.016 < 0.010 < 0.021 Sr-90 < 0.006 < 0.004 < 0.008 Be-7 0.47 +/- 0.11 0.34 +/- 0.06 0.42 +/- 0.07 K-40 0.82 +/- 0.12 4.35 +/- 0.14 3.73+/-0.12 Mn-54 < 0.004 < 0.005 < 0.005 Co-58 < 0.006 < 0.005 < 0.003 Co-60 < 0.003 < 0.004 < 0.004 Nb-95 < 0.010 < 0.006 < 0.004 Zr-95 < 0.014 < 0.009 < 0.009 Ru-103 < 0.007 < 0.006 < 0.004 Ru-106 < 0.052 < 0.044 < 0.044 Cs-134 < 0.006 < 0.004 < 0.004 Cs-137 < 0.006 < 0.005 < 0.004 Ce-141 < 0.024 < 0.014 < 0.009 Ce-144 < 0.045 < 0.032 < 0.031 Sb-125 < 0.027 < 0.026 < 0.019 77 KPS Table 27. Slime or aquatic vegetation

, analyses for gross beta, strontium-89 , strontium-90, and gamma-emitting isotopes. Collection: Semiannually Sample Description and Concentrat ion (pCi/g wet) Indicators Control Location K-1a K-1b K-1d K-9 Date Collected 08-01-17 08-01-17 08-01-17 09-06-17 Lab Code KSL-3886 KSL-3887 KSL-3888 KSL-4581 Gross beta 5.10 +/- 0.15 6.69 +/- 0.21 1.41 +/- 0.13 5.11 +/- 0.13 Sr-89 < 0.006 < 0.013 < 0.012 < 0.029 Sr-90 < 0.003 < 0.006 < 0.005 < 0.018 Be-7 < 0.16 0.85 +/- 0.18 0.77 +/- 0.04 1.22 +/- 0.21 K-40 4.87 +/- 0.41 5.47 +/- 0.35 0.94 +/- 0.04 4.92 +/- 0.52 Mn-54 < 0.017 < 0.013 < 0.002 < 0.014 Co-58 < 0.013 < 0.005 < 0.002 < 0.017 Co-60 < 0.011 < 0.010 < 0.002 < 0.017 Nb-95 < 0.015 < 0.013 < 0.004 < 0.019 Zr-95 < 0.022 < 0.016 < 0.005 < 0.016 Ru-103 < 0.017 < 0.007 < 0.002 < 0.020 Ru-106 < 0.112 < 0.064 < 0.010 < 0.138 Cs-134 < 0.016 < 0.013 < 0.002 < 0.021 Cs-137 < 0.013 < 0.011 0.006 +/- 0.002 < 0.020 Ce-141 < 0.022 < 0.026 < 0.008 < 0.029 Ce-144 < 0.127 < 0.104 < 0.015 < 0.110 Sb-125 < 0.072 < 0.054 < 0.010 < 0.104 Location K-1e K-1k K-14 Date Collected 08-01-17 08-01-17 09-06-17 Lab Code KSL-3890 KSL-3891 KSL-4582 Gross beta 2.23 +/- 0.18 5.10 +/- 0.14 1.62 +/- 0.11 Sr-89 < 0.017 < 0.008 < 0.074 Sr-90 < 0.008 0.005 +/- 0.002 < 0.038 Be-7 0.16+/-0.03 < 0.11 1.13 +/- 0.06 K-40 1.98 +/- 0.06 3.88 +/- 0.34 2.97+/-0.10 Mn-54 < 0.002 < 0.012 < 0.004 Co-58 < 0.002 < 0.010 < 0.004 Co-60 < 0.002 < 0.012 < 0.003 Nb-95 < 0.004 < 0.015 < 0.006 Zr-95 < 0.005 < 0.013 < 0.006 Ru-103 < 0.004 < 0.013 < 0.005 Ru-106 < 0.017 < 0.105 < 0.040 Cs-134 < 0.002 < 0.012 < 0.004 Cs-137 < 0.002 < 0.012 0.010 +/- 0.004 Ce-141 < 0.009 < 0.025 < 0.010 Ce-144 < 0.017 < 0.085 < 0.029 Sb-125 < 0.011 < 0.063 < 0.015 78 KPS Table 28. Bottom sediment samples, analyses for gross beta, strontium-89 , strontium-90 , and gamma-emitting isotopes. Collection

May and November Sample Description and Concentration (pCi/g dry) Indicator Control Location K-1c K-1d K-1j K-14 K-9 Collection Date 05-01-17 05-01-17 05-01-17 05-01-17 05-01-17 Lab Code KBS-1958 KBS-1959 KBS-1960 KBS-1962 KBS-1961 Gross beta 6.67 +/- 0.85 7.29 +/- 0.91 8.40 +/- 0.88 5.44 +/- 0.86 20.21 +/- 1.13 Sr-89 < 0.116 < 0.105 < 0.079 < 0.085 < 0.098 Sr-90 < 0.044 < 0.042 < 0.030 0.040 +/- 0.023 < 0.040 K-40 3.98 +/- 0.33 4.71 +/- 0.32 4.62 +/- 0.36 5.10 +/- 0.37 11.35 +/- 0.73 Co-58 < 0.009 < 0.010 < 0.014 < 0.010 < 0.022 Co-60 < 0.012 < 0.012 < 0.011 < 0.010 < 0.022 Cs-134 < 0.007 < 0.008 < 0.009 < 0.008 < 0.015 Cs-137 0.019 +/- 0.010 < 0.010 0.018 +/- 0.010 < 0.008 < 0.017 Location Collection Date 11-01-17 11-01-17 11-01-17 11-01-17 11-01-17 Lab Code KBS-5792 KBS-5793 KBS-5794 KBS-5797 KBS-5795 Gross beta 6.42 +/- 0.86 9.67 +/- 0.95 9.30 +/- 0.90 5.37 +/- 0.75 24.65 +/- 1.19 Sr-89 < 0.073 < 0.058 < 0.067 < 0.056 < 0.080 Sr-90 < 0.038 < 0.034 < 0.037 < 0.028 < 0.042 K-40 4.98 +/- 0.34 7.25 +/- 0.46 5.22 +/- 0.36 3.72 +/- 0.32 15.05 +/- 0.83 Co-58 < 0.011 < 0.018 < 0.010 < 0.014 < 0.027 Co-60 < 0.011 < 0.013 < 0.013 < 0.009 < 0.015 Cs-134 < 0.011 < 0.010 < 0.010 < 0.008 < 0.016 Cs-137 < 0.013 < 0.016 0.026 +/- 0.014 < 0.009 < 0.031 79

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Dominion Energy 2017 Annual Radiological Environlllental Operating Report Kewaunee Power Station Part !IL Corrective Actions written during reporting period Dominion Energy Kewaunee, Inc. . 1 CR -Enviromental Air sample K-31 sampled Per. .. Page 1 of I W Kewaunee CRS

• CR: Enviromental Air sample K-31 sampled Per SP-63-164 weekly cartrage change found OFF with no power CR.JD Short desaiption Site ----*-*------**-*-----

-* plscovery Oate/Tlme Submitter Submitters Dept Supervisor Unit 1 Mode Unit ISFSJ? Revision I Long Description ln\tlal Actions Recom Actions: additional Contacts Tag I: Equipment location Equipment Description Plant System OP-AA-102 Review Reqd? Operablllty Assesment Operability Comments Functlonallty Assessment Reportable Condition Reportabil lty Comments Is Equipment Important to Emergency Response WM-KW-100 values 0/RComments Signlncance {saeenlng) Potential Repeat (screening} Previous Issue CRT Comments Work Order I Comments Status Content Type: Item Version: 15,0 Created at 1/12/2017 12:05 PM by Paul A Simon (Generation

• 1)
• Last modified at 1/18/2017 3:50 PM by System Account 1139 Envlromentat Air sample K-31 sampled Per SP-63-164 weekly cartrage change found OFF with no power Kewaunee 4/11/2017 10:45 AM Paul A Simon {Generation

-4)

• 2. Radiation Protection Dan J Shannon (Generation

-4) DEF No Enviromental Air sample K-31 sampled Per SP-63-164 weekly cartridge change on 4/11/17 and was found OFF with no power. Sampler ran 82.5 hours, so sometime Friday breaker tripped. Normal run time Is 168 hours. Storms were In the area and caused power failure to sampler. Called WPS to report power failure. Restored power at 14:08. Checked sampler on way home -operating normal. No lssuses found. Had power restored and checked operation . Document event ln annual envlromental report. CA to Steckler/Shannon due May 31, 2018. No N/A N/A None No Yes CR Search by ~environmental Air Sampler* Identified the followtng

CR784 -K-8 REMP Environmental Air Samplers Found Not Running (09/20/2016) CR756 -Three REMP Environ mental Alr Samplers Found Not Running (08/22/2016) CR.746 -Environmental air sample~ found not running (08/16/2016} CR689 -Power found off at K-2 Environmental air sampler (06/28/2016) CR338

• Hour Meter on Environmental Air Sampler K-41 Was Not Reset (11/17/2015}

CR88 -K-2 Envlromental Air sampler found not working (07/28/2015) CR.547860 -K-31 Environmental Air Sampler lost power (05/06/2014) -.. *--* ****-" Power was lost due to recent storms In the area. Power was restored on 04/11/2017 and sampler was returned to service. CA(387) to RP(Steckler/Shannon) to Document Loss of Power to Environmental Air Sampler K-31 Annual Environmental Report. Due Date: 05/31/2018 Pending Close http://generationdomnet/sites/kpscrs/Lists/CR/DispForm .aspx?ID= l l 39&Source=http%3A.. . 2/27/2018 This Page Intentionally Left Blank CR -K-8 Enviromental Air Sampler found not running ... Page 1 of 1 Lu Kewaunee CRS

• CR: K-8 Enviromental Air Sampler found not running CI\..ID Short desaiptlon Site Discovery Oate{Tlme Submitter Submitters Dept Supervisor Unit 1 Mode Unit 1SFSI7 Rl!!VISlon

' Long Description Inltlal Actions Recom Actions: addltlonal Contacts Tag I: Equipment Location Equipment Desaiption Plant System Operabllity Assesment Operability Comments Functionality Assessment Reportable Condition Reportabllity Comments ls Equipment Important to Emergency Response WM-KW-100 values 0/R Comments Slgnlncance (screening) Potentlal Repeat {screening) Previous lssue CRT Comments Work Order# Comments Status Content Type: Item Vet$lon: 13.0 Created at 6/29/2017 11: 14 AM by Paul A Simon (Generation

• 4) Last modified at 7/20/2017 11:25 AM by System Account 1285 K-8 Enviromental Ak Sampler found not running Kewaunee 6/26/2017 10:00 AM Paul A Simon (Generation -4) 2. Radiation Protection Dan J Shannon (Generation -4) No K-8 Envtronmental Air Sampler (Nativity Blessed Virgin Mary Church,Tisch Mills ) was found not running by RP Tech sent out to check air flows. A recent electical storm may have tripped the breaker. A partial air particulate

/Iodine sample was collected at location K-8 for the sample period ending 6/27/17. The failure resulted In a run time of 67,53 hours. No other lssuses found. Reset breaker and restarted sampler. Inspection completed the followlng day found sampler stlll running with no Issues. Report this event In the annual envlromental report {Holschbaeh/Shannon -end of May 2018) No N/A N/A No No Yes CR Search by "Envlronmentat Air Sampler" Identified the following

CR1139 -Envlromental Air sample K* 31 sampled Per SP-63-164 weekly cartrage change found OFF with no powe, (04/11/2017) CR784 -K-8 REMP Environmental Air Samplers Found Not Running (09/20/2016) CR756 -Three REMP Environmental Alr Samplers Found Not Running (08/22/2016) CR746

• Environmental air samplers found not running (08/16/2016) CR689 -Power found off at K-2 Environmental air sampler (06/28/2016) CR338 -Hour Meter on Environmental Alr Sampler K-41 Was Not Reset (11/17/2015) CR88 -K-2 Enviromental Air sampler found not working (07/28/2015) CR.547860 -K-31 Environmental AJr Sampler lost power (05/06/2014) CA(426) to RP(Holschbach/Shannon) to Document Loss of Power to Environmental Alr Sampler K-8 Annual Environmental Report. Due Date: 05/31/2018 Pending Close http://genera tiondomnet/sites/kpscrs/Lists

/CR/DispF orm.aspx?ID= 1285&Source=http%3A... 2/27/2018 This Page Intentionally Left Blank CR -No Fish Sample Collected for Fourth Quarter ... Page 1 of 1 W Kewaunee CRS

• CR: No Fish Sample Collected for Fourth Quarter 2017 per Kewaunee REMM C~IO Short description Site Discovery Date(nme Submitter Submitters Dept Supervisor Unit 1 Mode Unit ISFSI? Revision t Long Description Initial Actions Recom Actions: additional Contacts Tag I: Equipment Location Equipment Description Plant System OP-M-102 Review Reqd? Operablllty Assesment Operability Comments Functlonallty Assessment Reportable Condition Reportability Comments Is Equipment Important to Emergency Response WM-KW-100 values 0/R Comments Significa nce (screening) Potential Repeat (screening) Previous Issue CRT Comments Work Order# Comments Status Content Type: Item Version: 13.0 Created at 1/4/2018 5:20 PM by Darryl M Holsdlbach (Genera!IOn
• 4) -Last modified at 1/16/2018 3:39 PM by System Account 1571 No Ash Sample Collected for Fourth Quarter 2017 per Kewaunee REMM Kewaunee 1/4/2018 3:00 PM Darryl M Holschbach (Generation* 4)
• 2. Radiation Protection Dan J Shannon (Generation

-4) N/A No There was not a fish sample avallable for collection for the fourth quarter 2017. Attempts were unsuccessfu l through both commercial and sport fishing. low discharge now and weather conditions affected avallabllfty near the plant. Per the Radiologlcat Environmental Monitoring Manual (REMM) Rev 20, 3 random samplings of commercially and recreatlonally Important species are collected In the vicinity of the discharge . Ash are collected three times per year (second, third, and fourth quarters) near the discharge area (K*ld). The missing tlsh sample ts to be documented as an exception In the 2017 Annual Radlological Envlronmental Operating Report, Section 3.1.4 Program Execution . Initiate CR for documentation of Issue Revision 21 of the REMM was Issued 01/01/2018 and requires a fish sample to be collected only once per year In the third quarter. A fish sample Is no tonger required during the unfavorable fourth quarter. No further action Is required. No N/A None N/A No None No None No No History based on CR Search by ~Fish Sample~ CA(514) to RP(Steckler /Shannon) to Document missing fourth quarter 2017 fish sample In the Annual Radlologlcal Environmental Operating Report. Due Date: 05/31/2018 Pending Close http://generationdomnet/sites/kpscrs/Lists/CR/DispForm .aspx?ID= 1571 &Source=http%3A ... 2/27/2018 This Page Intentionally Left Blank CR -Detectable levels of tritium identified in ... Page 1 of 1 Kewaunee CRS

• CR: Detectable levels of tritium identified in REMM locations K-14a and K-14b during 4th QTR 2017 CR.JD Short description Site Discovery Date/Time Submitter Submitters Dept Supervisor Unit 1 Mode Unit ISFSl? Revision

1. Long Description lnitlal Actions Recom Actions:

addltlonal Contacts Tag#: Equipment Location Equipment Description Plant System OP-AA-102 Review Reqd? Operability Assesment Operability Comments Functionallty Assessment Reportable Condition Reportabillty Comments Is Equipment Important to Emergency Response WM-KW-100 values 0/R Comments Significance (screening) Potential Repeat (screening) Previous Issue CRT Comments Work Order# Comments Status Content Type: Item Version: 15.0 Created at 5/3/2018 4:05 PM by Dan J Shannon (Generation

• 4) II Last modified at 5/7/2018 2:07 PM by System Account 1684 Detectable levels of tritium Identified in REMM locations K-14a and K-14b during 4th QTR 2017 Kewaunee 5/3/2018 2:00 PM Dan J Shannon (Generation

-4) 2. Radiation Protection Bart R Steckler (Generation -4) No During the review of the 2017 Annual Radiological Environmental Operating Report (AREOR), tt was noted that there were detectable levels of tritium Identified In surface water samples taken from Radiological Environmental Monitoring Manual (REMM) locations K-14a and K-14b (Two Creeks Park, 2.6 miles south of site) during November and December 2017. The two fourth quarter composite results from locatlons K-14a and K-14b were 365 and 457 pCI/L, respectively. Analysts of the constitue nt monthly samples resulted In values of 217 and 206 pCI/L for the November samples at locations K-14a and K-14b, respectively , and 744 and 872 pCI/L for the December samples at locations K-14a and K-14b respectively. The Minimum Detectable Concentration (MOC) for these samples was 184 pCl/l. These results are less than 5% of the REMM required Reporting Levels for tritium (20,000 pCVL). The most Ukely cause of the detectable tritium concentrations at this location was from the multiple batch discharges of water from the Refuellng Water Storage Tank (RWST) which occurred during the fourth quarter of 2017. These batch discharges contained tritium. All discharges were completed In accordance with the KPS Offslte Dose Calrulatlon Manual and site procedures, which ensure compliance with 10CFR20 (discharge concentration llmlts), lOCFRSO (dose limits), and 40CFR190 (dose limits) for radioactive effluent discharges . The Identifica tion and probable cause of the detectable levels of tritium at REMM locations K*14a and K-14b was documented In the 2017 AREOR, Part 1, Summary and Interpretation. Discussed results with REMP owner. Documented results and probable cause In 2017 AREOR. Initiated CR. Evaluate the Identificatio n of detectable levels of tritium In the surface water samples at REMM location K-14a and K-14b (Two Creeks Park) and determine if any additional actions are needed. No N/A N/A No Levels are not reportable per REMM Table 2.2.1-0 No Agree with recomended actions No No history for tritium In these locations Identified. Discussed with owner the values are above minimum detectable and below reportablllty issues, no regulatory actions required. CA567, DOI evaluate the identification of detectable levels of tritium In the surface water samples at REMM location K-14a and K-14b (Two Creeks Park) and determine lf any additional actions are needed. to Steckler/Shannon. CAART Review Oose http:// generationdomnet/ sites/kpscrs/Lists /CR/DispF orm.aspx?ID = 1684&Source =http%3 A. .. 5/7/2018 This Page Intentionally Left Blank}}