LIC-15-0061, Annual Radiological Environmental Operating Report, January 1, 2014 to December 31, 2014

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Annual Radiological Environmental Operating Report, January 1, 2014 to December 31, 2014
ML15133A207
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Site: Fort Calhoun Omaha Public Power District icon.png
Issue date: 04/24/2015
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LIC-15-0061
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Omaha Public Power District Fort Calhoun Station Unit No. 1 Radiological Environmental Operating Report For Technical Specification Section 5.9.4.b January 1, 2014 to December 31, 2014 DOCKET NO. 50-285 OPERATING LICENSE DPR-40

OMAHA PUBLIC POWER DISTRICT FORT CALHOUN STATION RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT TECHNICAL SPECIFICATION 5.9.4.b January 01, 2014- December 31, 2014

Annual Radiological Environmental Operating Report This report is submitted in accordance with Section 5.9.4.b of the Technical Specifications of Fort Calhoun Station Unit No. 1, Facility Operating License DPR-40 for the period January 01, 2014 through December 31, 2014.

In addition, this report provides any observations and anomalies that occurred during the monitoring period.

Reviewed by: Approved by:

upervisor-RadWaste/ ironmental Manager-Chemistry FCS Plant Manager Site Vice President

Annual Radiological Environmental Operating Report In accordance with Technical Specification 5.9.4.b, herein is the Fort Calhoun Station (FCS) Annual Radiological Environmental Operating Report for year 2014. The data provided is consistent with the objectives as specified in Section 5.2.2 of the Offsite Dose Calculation Manual (ODCM), "Annual Radiological Environmental Operating Report." The report is presented as follows:

1) An introductory discussion of the implementation of the Radiological Environmental Monitoring Program (REMP), including program observations and environmental impact relevant to the operation of FCS.
2) The sample class, sample collection frequency, number of sample locations, and the number of samples collected this reporting period for each parameter is delineated in Table 1.0.
3) A statistical evaluation of REMP data is summarized in Table 2.0, in accordance with Regulatory Guide 4.8, Table 1. For each type of sample media and analysis, Table 2.0 presents data separately for all indicator locations, all control (background) locations, and the location having the highest annual mean result. For each of these classes, Table 2.0 specifies the following:
a. The total number of analyses
b. The fraction of analyses yielding detectable results (i.e., results above the highest Lower Limit of Detection (LLD) for this period
c. The maximum, minimum, and average results
d. Locations with the highest annual mean are specified by code, name, and by distance and direction from the center of plant reactor containment building.
4) Table 3.0 is a listing of missed samples and explanations
5) Table 4.0 is the 2014 Land Use Survey
6) Review of Environmental Inc. Quality Assurance Program
7) Appendix A describes the Interlaboratory Comparison Program
8) Appendix B describes the vendor Data Reporting Conventions utilized
9) Appendix C reports the information required when primary coolant specific activity has exceeded the limits of Technical Specification 2.1.3
10) Appendix D is the Sample Location Maps Page 1 of 14

INTRODUCTION Radiolo-gical Environmental Monitorinq Program (REMP) - 2014 This report gives the results of the Radiological Environmental Monitoring Program (REMP) for the year 2014.

The REMP is a requirement of the Fort Calhoun Station (FCS) operating license. It was initiated prior to plant operation in 1973.

The main purpose of the REMP is to ensure public safety by monitoring plant discharges and assessing the effect, if any, of plant operations, on the environment. Samples are collected that would account for various exposure pathways such as ingestion, inhalation, adsorption and direct exposure. Samples collected on a regular basis include: air, surface water, ground water, milk, vegetation, fish, sediment, and food crops. Direct radiation is measured by thermoluminescent dosimeters (TLDs). These samples and TLDs are sent to an independent vendor laboratory for analysis. The vendor uses analytical methods that are sensitive enough to detect a level of activity far below that which would be considered harmful. Locations for sample collection are based on radiological and meteorological data from the Annual Effluent Release Report and information obtained from the Environmental Land Use Survey.

Most samples, particularly indicator samples, are collected in a circular area within a five-mile radius of plant containment. (However, control locations are usually outside of five miles.) This circle is divided into sixteen equal sectors, each assigned an identification letter "A" through "R" (note: letters "I"and "0"are not used, as they may be mistaken for the numbers "1" and "0"). Sector "A" is centered on North or zero degrees. Sectors are also given directional labels such as "West-Southwest" ("WSW"). Sample locations are listed by number along with their respective distances and direction from plant containment, in the Offsite Dose Calculation Manual (ODCM).

When assessing sample results, data from indicator locations (those most likely to be effected by plant operations) are compared to those from control locations (those least or not likely to be effected). Results from an indicator location which were significantly higher than those from a control location, could indicate a plant-attributable effect, and could require additional investigation.

The results of the sample analyses, as required by the FCS Offsite Dose Calculation Manual (ODCM), are presented in the attached statistical tables in accordance with Table 1 of Regulatory Guide 4.8, "Environmental Technical Specifications for Nuclear Power Plants." Sample collection was conducted by plant chemistry/environmental staff. A contract vendor (Environmental Inc., Northbrook, Illinois) performed sample analyses, preparation of monthly reports and the statistical evaluation of sample results. All vendor analysis techniques met the sensitivity requirements as stated in the ODCM.

Results for 2014 were within expected ranges and compared closely with historical results. The result details and exceptions are listed in the following sections.

Page 2 of 14

1) Ambient Gamma Radiation Ambient gamma radiation is measured by thermoluminescent dosimeters (TLDs) provided by the vendor laboratory. These dosimeters contain calcium sulfate phosphors and are processed quarterly.

Thirty-two new thermoluminescent dosimeters were added to the program during the fourth quarter of 2010.

One incident was documented in the Corrective Action Program in 2014 related to thermoluminescent dosimeters (TLDs). The TLD OTD-H-(I) was damaged in the hail storm that occurred on June 3, 2014.

The testing vendor was notified of the damage and the TLD was sent to the vendor to be analyzed. The returned results were evaluated for their validity. The results appeared to be consistent with the results from previous quarters and to nearby TLDs, so the results were deemed to be valid and the damaged TLD was not included as a missed/lost sample.

All sample results are within the range of historical data and displayed less than 20% difference when compared to historical averages. All results were less than 3 sigma standard deviations from historical means. No discrepancy between released effluents and resultant radiation dose measured was observed. No changes in plant operation/procedures are required based upon observed impacts to the environment to date.

10-Year Trend Comparison of TLD Locations Location Avg. Dose (mr/week) 2014 Avg. Dose (mr/week)

A 1.37 1.35 B 1.44 1.38 C 1.44 1.15 D 1.26 1.15 F 1.40 1.15 G 1.34 1.20 H 1.45 1.25 1.51 1.35 J 1.58 1.38 K 1.49 1.35 N 1.42 1.40 0 1.42 1.45 P 1.45 1.48 S 1.47 1.50 L (Control) 1.29 1.15 Page 3 of 14

2) Milk/Pasture Milk samples or pasture grasses, if milk is temporarily unavailable, are collected every two weeks during the pasture season from the beginning of May through September, and monthly the rest of the calendar year. Indicator samples are collected from a herd of milk goats at a family farm located approximately 3.4 miles from the plant in Sector J (South). The control samples are collected from a commercial dairy cow herd located approximately 9.9 miles from the plant in Sector J (South). This indicator station was added in March of 2013, the control location is unchanged from last year. No indicator milk sample was available in December due to the does drying up before birthing; pasture grass in lieu of milk was collected at the indicator location.

All sample results for Cesium-1 34, Cesium-1 37 and other gammas were at the LLD for both indicator and control locations. No plant-related effects were observed.

3) Fish Fish are collected on an annual basis. Control samples are collected at a location approximately twenty miles upstream of the plant (river miles 665 - 667). Indicator samples are collected in the immediate vicinity of the power plant (river miles 644 - 646). Several species of fish, important to commercial and recreational interest, representing all levels of the aquatic food chain are collected at both locations.

All sample results are within the range of historical data. Results from both control and indicator locations were less than LLD for all gamma emitters, indicating no plant-related effects.

4) Food Crop Based on the results of the biennial Land Use Survey, the nearest high deposition pathway for food crops is the Alvin Pechnik Farm in Sector H (0.94 miles, 1630). Accordingly, vegetable samples were collected at Alvin Pechnik Farm for the purposes of the 2014 REMP.

Samples were comparable with historical results and within the range of results reported from the control location garden at Mohr Dairy. Additional special interest samples were obtained from on-site farm fields per plant Technical Specifications.

All results were at the LLD for all non-naturally occurring radionuclides. No plant-related effects were observed.

5) Sediment River sediment samples are collected twice a year at an upstream control location and a downstream indicator location. All results were at the LLD for all non-naturally occurring radionuclides. No plant-related effects were observed.
6) Air Monitoring Air sample results for 2014 were well within historical limits for all locations. Additionally, all indicator locations showed results very similar to the control locations.

Seven incidents were documented in the Corrective Action Program in 2014 related to air sampling.

Each is discussed below.

Page 4 of 14

The package of environmental samples for air monitoring dated 03/05/2014 was damaged in transit.

Subsequently, the air particulate and iodine cartridge filters for OAP-l-(l) and OAP-K-(I) were lost. The transport vendor was contacted to report the damage and to try to recover the missing samples. The damage was reported, but the attempt to recover the samples was unsuccessful. The samples were considered lost and are addressed in accordance with section 5.1.1 .A-7 of the Offsite Dose Calculation Manual.

During sample collection on 04/16/2014, for location OAP-I-(I), the sampler noticed that the particulate filter was missing. The sampler examined the area around the sample station, but did not recover the missing particulate filter. The iodine charcoal cartridge was sent to the vendor for radioactive iodine analysis. The iodine results on the iodine charcoal cartridge were at the LLD. The particulate filter sample was considered lost and is addressed in accordance with section 5.1 .1 .A-7 of the Offsite Dose Calculation Manual.

On 04/23/2014, the environmental air sampler as found flow value in the field at location OAP-D-(l) was found to be high and out of tolerance. The flow, as found in the field by the sampler, was 2.6 SCFM; the acceptance range is 1.8-2.2 SCFM. The unit was replaced and a bench test was performed to verify the as found flow. The bench flow rate was found to be 2.3 SCFM. The bench test confirmed that the flow was high out of the tolerance. The bench test flow rate was used to calculate the volume through the sampler because it was the conservative approach. The returned analytical results were reviewed for consistencies in gross beta and to verify the LLD 1-131. The results were within the normal statistical limits and the LLD's were per the Offsite Dose Calculation Manual, so the sample was deemed to be acceptable.

There were four incidents of power failures at air sampling locations during 2014. The power outages occurred, at OAP-D-(I) for 4.90 hours0.00104 days <br />0.025 hours <br />1.488095e-4 weeks <br />3.4245e-5 months <br /> on 11/19/2014, at OAP-K-(I) for 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> during the time frame of 9/24/2014 to 10/1/2014, at OAP-K-(I) for 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> during the time frame of 7/2/2014 to 7/9/2014, and at OAP-B-(l) and OAP-J-(I) for 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> during the time frame of 8/27/2014 to 9/3/2014. The returned analytical results were reviewed for consistencies in gross beta and to verify the LLD 1-131. The results were within the normal statistical limits and the LLD's were per the Offsite Dose Calculation Manual, so the sample was deemed to be acceptable.

All sample results are within the range of historical data. All indicator locations displayed less than 19%

difference when compared to historical average. All 2014 results when compared to historical averages are within the stated vendor error acceptance tolerance.

Results from both control and indicator locations were less than LLD for gamma emitters and iodine.

No changes in plant operation/procedures are required based upon observed impacts to the environment to date.

Page 5 of 14

10-Year Trend Comparison of Air Sampling Locations Location Avg. Beta (pCi/m 3) 2014 Avg. Beta (pCi/m 3)

Sector B 0.029 .026 Sector D 0.029 .025 Sector 1 0.026 .021 Sector J 0.028 .023 Sector K* 0.028 .024 Sector F (Control) 0.030 .025

  • At least a 5-Year comparison due to data availability
7) Surface Water Water samples are collected upstream of the plant (control location) as well as half-mile downstream and at a municipal water treatment plant on the north edge of Omaha.

Results for Cs-1 34, Cs-1 37, and other gammas were all less than LLD. Tritium results were also less than LLD. No plant-related effects were detected.

8) Ground Water Quarterly residential well water samples are collected at the following four locations: Station No. 15:

Smith Farm, Station No. 20: Mohr Dairy, Station No. 74: D. Miller Farm and Station No. 75: Lomp Acreage. All sample results to date have been at the LLD except gross beta due to naturally occurring radionuclides. Gross beta results have ranged from a low of 2.0 pCi/liter to a high of 6.8 pCi/liter, with an average gross beta for the year of 4.0 pCi/liter for indicator locations. Strontium-90 analysis is being conducted on wells as part of the station's groundwater protection program. No plant-related effects were detected.

Page 6 of 14

Table 1.0 Sample Collection Program Collection Number of Samples Sample Class Frequency Sample Collected this Locations Period Background Radiation (TLDs) Quarterly 47 188 Air Particulates Weekly 6 309 Airborne Iodine Weekly 6 310 Biweekly Milk May thru Sept 2 401 Surface Water Monthly 3 36 Ground Water Quarterly 4 16 Fish Annually 2 52 Sediment Semi-annually 2 4 Food Crops Annually 3 93 TOTAL 917 Note 1: Milk sample collection total includes vegetation performed for milk unavailability. Milk samples are collected every two weeks May-Sept. and monthly the rest of the year. Three milk samples were performed in May; two samples were performed in January and October to maintain ST frequency.

Note 2: Includes one background sample.

Note 3: Variety of samples collect during period Page 7 of 14

Table 2.0 Radiological Environmental Monitoring Program Summary Reporting Period January-December, 2014 Name of Facility Fort Calhoun Nuclear Power Station - Unit 1 Docket No. 50-285 Location of Facility Washington, Nebraska (County, State )

Indicator Location with Highest Control Number Sample Type and Locations Annual Mean Locations Non-Type Number of LLDb Mean (F)' Mean (F)0 Mean (F)c Routine (Units) Analysesa Range' Locationd Range' Range' Resultse Background Gamma 188 0.5 1.3 (184/184) OTD-2B-(I), 1.6 (4/4) 1.2 (4/4) 0 Radiation (0.9-2.2) 2.95 mi. @ 260 (1.3-2.2) (0.9-1.3)

(TLD)

(mR/week)

Airborne GB 309 0.005 0.024 (257/257) OAP-B-(I) 0.025 (52/52) 0.025 (52/52) 0 Particulates (0.009-0.059) 0.60 miles SW. (0.012-0.052) (0.014-0.054)

(pCi/m 3) GS 24 Cs-1 34 0.001 < LLD -< LLD 0 Cs-1 37 0.001 < LLD -< LLD 0 Other Gammas 0.001 < LLD -< LLD 0 Airborne 1-131 310 0.070 < LLD -< LLD 0 Iodine (pCi/m3)

Milk 1-131 39 0.5 < LLD -< LLD 0 (pCi/L)

GS 39 K-40 150 1691 (19/19) OFM-G-(I), Stangl 1691 (19/19) 1296 (20/20) 0 (391-1878) Dairy, 3.4 mi@369° (1391-1878) (1132-1396)

Cs-134 15 < LLD - < LLD 0 Cs-137 15 < LLD -< LLD 0 Other Gammas 15 < LLD -< LLD 0 Ground Water GB 16 4.0 (12/12) OGW-F-(I), Lomp 5.1 (4/4) 4.8 (4/4) 0 Acreage, 0.65 mi @

(pCi/L) (2.0-6.8) 163° (2.7-6.8) (3.8-6.3)

H-3 16 300 < LLD -< LLD 0 Sr-90 16 0.68 < LLD -< LLD 0 GS 16 (pCi/L) Cs-134 15 < LLD -< LLD 0 Cs-137 18 < LLD -< LLD 0 Other Gammas 15 < LLD <-LLD 0 Surface Water GS 36 (pCi/L) Cs-134 15 < LLD -< LLD 0 Cs-137 18 < LLD -< LLD 0 Other Gammas 15 < LLD <- LLD 0 0

H-3 12 300 < LLD < LLD Page 8 of 14

Name of Facility Fort Calhoun Nuclear Power Station - Unit 1 Docket No. 50-285 Location of Facility Washington, Nebraska (County, State)

Sample Type and Indicator Location with Highest Control Number Type Number of LLDb Locations Annual Mean Locations Non-(Units)

Analysesa Mean (F)L td Mean (F)c Mean (F)0 Routine LocationM Rangec Rangec Resultse Fish GS 5 (pCi/g wet) Mn-54 0.021 < LLD - - < LLD 0 Co-58 0.023 < LLD - - < LLD 0 Co-60 0.016 < LLD - - < LLD 0 Fe-59 0.071 < LLD - - < LLD 0 Zn-65 0.040 < LLD - - < LLD 0 Ru-103 0.031 < LLD - - < LLD 0 Cs-134 0.022 < LLD - - < LLD 0 Cs-1 37 0.019 < LLD - - < LLD 0 Sediment GS 4 pCi/g dry Mn-54 0.023 < LLD - -< LLD 0 Co-58 0.023 < LLD - -< LLD 0 Co-60 0.016 < LLD - -< LLD 0 Fe-59 0.066 < LLD - -< LLD 0 Zn-65 0.051 < LLD - -< LLD 0 Cs-134 0.015 < LLD - -< LLD 0 Cs-137 0.020 < LLD - -< LLD 0 Food Crops GS 9 (pCi/g wet) Mn-54 0.021 < LLD - -< LLD 0 Co-58 0.020 < LLD - - < LLD 0 Co-60 0.014 < LLD - -< LLD 0 Fe-59 0.045 < LLD - - < LLD 0 Zn-65 0.043 < LLD - -< LLD 0 Zr-Nb-95 0.023 < LLD - -< LLD 0 Cs-134 0.017 < LLD - - < LLD 0 Cs-137 0.016 < LLD - - < LLD 0 Ba-La-140 0.015 < LLD - - < LLD 0 Vegetation (MI) GS 1 (pCi/g wet) Mn-54 0.033 < LLD - - < LLD 0 Co-58 0.029 < LLD - - < LLD 0 Co-60 0.026 < LLD - < LLD 0 Fe-59 0.050 < LLD - < LLD 0 Zn-65 0.052 < LLD - < LLD 0 Zr-Nb-95 0.035 < LLD - < LLD 0 1-131 0.046 < LLD < LLD 0 Cs-1 34 0.026 < LLD - < LLD 0 Cs-1 37 0.029 < LLD <- LLD 0 Ba-La-140 0.027 < LLD - < LLD 0 GB = gross beta, GS = gamma scan.

LLD = nominal lower limit of detection based on a 95% confidence level.

Mean and range are based on detectable measurements only (i.e., >LLD) Fraction of detectable measurements at specified locations is indicated in parentheses (F).

Locations are specified: (1) by code, (2) by name, and (3) by distance and direction relative to the Reactor Containment Building.

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 the typical pre-operational value for the medium or location.

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Table 3.0 Listing of Missed Samples (samples scheduled but not collected)

Sample Date Location Reason Type AP/AI 03-05-14 OAP-I Sample lost in transit by shipping vendor when the package was damaged and the samples fell out and were not recovered.

AP/AI 03-05-14 OAP-K Sample lost in transit by shipping vendor when the package was damaged and the samples fell out and were not recovered.

AP 04-16-14 OAP-I Paper filter was missing at filter change out Page 10 of 14

Table 4.0 FORT CALHOUN STATION FC-801 CHEM ISTRY FORM REV 1 20 14 Page 1 of 3 Environmental Land Use Survey Report Sector Dir Land Use Owner Miles Meters Deg Survey A l Grou XOQ DOQ Remarks Technique.=

A I N RESIDENCE WRIGHT 4.36 7016.74351 INTERVIEW X X 9.50E-08 4.10E-10 MILK ANIMAL MEAT ANIMAL VEGETATION GROUNDWATER WRIGHT 4.36 7016.74351 INTERVIEW X - X 9.50E-08 4.10E-10 B NNE RESIDENCE RAND,J 1.93 3106.03 12 MAIL SURVEY X 5.40E-07 2.50E-09 MILK ANIMAL MEAT ANIMAL VEGETATION SHEPARD 2.23 3588.84 16 INTERVIEW X X 3.60E-07 1.60E-09 GROUNDWATER RAND,J 1.93 3106.03 12 MAIL SURVEY X 5.40E-07 2.50E709 C NE RESIDENCE HANSEN,M 1.52 2446.20 42 MAIL SURVEY X -X 7.60E-07 2.50E-09 MILK ANIMAL MEAT ANIMAL VEGETATION THIELE 1.59 2558.86 52 MAIL SURVEY X 7.10E-07 2.30E-09 GROUNDWATER HANSEN, M 1.52 2446.20 42 MAIL SURVEY X IX 7.60E-07 2.50E-09 D IENE RESIDENCE MEADEG 4.79 7708.76 63 INTERVIEW X 8.40E-08 1.20E-10 MILKANIMAL MEAT ANIMAL VEGETATION MEADE,G 4.79 7708.76 63 INTERVIEW X 8.40E-08 1.20E-10 GROUNDWATER MEADE,G 4.79 7708.76 63 INTERVIEW X 8.40E-08 1.20E-10 E E RESIDENCE LOVE 4.67 7515.64 89 MAIL SURVEY X 9.80E-08 1.50E-10 MILK ANIMAL MEAT ANIMAL BROTHERS,D 4.91 7901.88 90 INTERVIEW X 9.10E-08 1.40E-10 VEGETATION GROUNDWATER LOVE 4.67 7515.64 89 MAILSURVEY X 9.80E-08 1.50E-10 F ESE RESIDENCE WILSON ISLAND 4.22 6791.43 121 INTERVIEW X X X 1.40E-07 2.90E-10 MILK ANIMAL MEAT ANIMAL VEGETATION WILSON ISLAND 4.2.2 6791.43 121 INTERVIEW X X X 1.40E-07 2.90E-10 GROUNDWATER WILSON ISLAND 4.22 679.1.43 121 INTERVIEW X X X- 1.40E-07 2.90E-10 Page 11 of 14

FORT CALHOUN STATION FC-801 REV 1 CHEMISTRY FORM 2014 Page 2 of 3 Environmental Land Use Survey Report Sector Dir Land Use Owner Miles Meters Deg Survey Age Group XOQ DOQ Remarks Technique ~~

G SE RESIDENCE CARTERT 1.67 2687.60145 MAIL SURVEY X I I8.OE-07 5.OOE-09 MILK ANIMAL MEAT ANIMAL VEGETATION KALIN,W 1.74 2800.26 145 INTERVIEW 7.50E-07 4.60E-09 GROUNDWATER KALIN,W 1.74 2800.26 145 MAIL SURVEY X I 17.50E-07 4.60E-09 OGW-A-(I).SMITH FARM RETAINED TO MAINTAIN HISTORICAL DATA FROM PRE-OP TO PRESENT H SSE RESIDENCE LOMP .65 1046.07 163 MAIL SURVEY X 6.20E-06 6.60E-08 MILK ANIMAL MEAT ANIMAL HINELINE,R 1.82 2929.01 148 INTERVIEW X 5.80E-07 5.80E-09 VEGETATION PECHNIKA :94 1512.78 163 INTERVIEW X 2.70E-06 2.90E-08 GROUNDWATER LOMP :65 1046.07 163. MAIL SURVEY X 6.20E-06 6.60E-08 J Z S RESIDENCE DOWLER .73 1174.82 1751 INTERVIEW X 2.60E-06 2.10E-08 MILKANIMAL STANGL 3.44 5536.14 169 INTERVIEW X X X 6.20E-08 4.10E-10 MEAT ANIMAL PRATT 2.48 3991.17170 INTERVIEW X - 1.30E-07 9.10E-10 VEGETATION DOWLER .73 1174.82 175 INTERVIEW X 2.60E-06 2.1OE-08 GROUNDWATER DOWLER .73 1174.82 175 INTERVIEW X 2.60E-06 2.10E-08 KiSS RESIDENCE D.MILLER .65 1046.07 203 INTERVIEW X 3.1OE-06 1.50E-08 MILK ANIMAL I MEAT ANIMAL D.MILLER .65 1046.07 2031 INTERVIEW X 3.10E-06 1.50E-08 COWS ARE ONLY ON THE PROPERTY DURING GRAZING SEASON. PASTURE ON LEASE.

VEGETATION T. DEIN 2.00 3218.69 193 INTERVIEW X - X 2.20E-07 9.50E-10 GROUNDWATER D.MILLER .65 1046.07 203 INTERVIEW X 3.10E-06 1.50E-08 L SW RESIDENCE ROBERTSON,D .73 1174.82 224 MAIL SURVEY X 1.90E-06 8.20E-09 MILK ANIMAL MEAT ANIMAL RYDER .76 1223.10 227 INTERVIEW X 1.70E-06 7.50E-09 VEGETATION KAZAKERICIUS 1.36 2188.71 233 INTERVIEW X 3.90E-07 1.60E-09 GROUNDWATER ROBERTSOND .73 1174.82 224 MAIL SURVEY X 1.90E-06 8.20E-09 MIWSW RESIDENCE BENSEN, M 1.06 1705.90 257 INTERVIEW X 1.10E-06 3.40E-09 MILK ANIMAL I MEAT ANIMAL WRICH,B 2.42 3894.61 250 INTERVIEW X 1.40E-07 3.70E-10 VEGETATION THOMAS 1.13 1818.56 259 MAIL SURVEY X 8.90E-071 2.80E-09 GROUNDWATER BENSEN,M 1.06 1705.90 257 INTERVIEW X 1.10E-061 3.40E-09 Page 12 of 14

FORT CALHOUN STATION FC-801 REV 1 CHEMISTRY FORM 2014 Page 3 of 3 Environmental Land Use Survey Report Sector Dir Land Use Owner Miles Meters Deg Survey Age Group XOQ DOQ Remarks I b]Technique =! :g3 N I W RESIDENCE NIELSEND 1.20 1931.21 263 MAIL SURVEY X 8.70E-07 2.90E-09 MILK ANIMAL MEAT ANIMAL ANDERSON,J 3.25 5230.37 281 INTERVIEW X 8.10E-08 2.20E-10 VEGETATION ASMUSSEN,G 1.30 2092.15 270 MAIL:SURVEY X 6.90E-07 2.30E-09 GROUNDWATER ASMUSSEN,G 1.30 2092.15 270 MAILSURVEY X 6.90E&07 2.30E-09 P ý/NW RESIDENCE STONE 2.60 4184.29 283 MAIL SURVEY X 2.40E-07 7.80E-10 MILK ANIMAL MEAT ANIMAL VEGETATION TABOR 2.65 4264.76 285ý INTERVIEW X- X 2.30E-07 7.40Er10 GROUNDWATER STONE 2.60 4184.29283 MAIL SURVEY X 2.40E-07 7.80E-10 Q NW RESIDENCE HANSEN,R 2.40 3862.43 318 INTERVIEW X 4.50E-07 1.90E-09 MILK ANIMAL.

MEAT ANIMAL VEGETATION HANSEN,R 2.40 3862.43 318 INTERVIEW X 4.50E-07 1.90E-09 GROUNDWATER HANSEN,R 2.40 3862.43 318 INTERVIEW X 4.50E-07 1.90E-091 RESIDENCE SHUBERT,B. 2.08 3347.44 330 INTERVIEW X X 4.90E-07 2.90E-09 MILK ANIMAL MEAT ANIMAL VEGETATION SONDERUP 3.73 6002.85 328 MAILSURVEY X 1.30E-07 6.60E-10 GROUNDWATER SONDERUP 3.73 6002.85 328. MAIL SURVEY X 1.30E-07 6.60E-10 Performed by Reviewed bv Page 13 of 14

Review of Environmental Inc., Quality Assurance Program Fort Calhoun Station contracts with Environmental Inc., Midwest Laboratory (vendor lab) to perform radioanalysis of environmental samples. Environmental Inc. participates in interlaboratory comparison (cross-check) programs as part of its quality control program. These programs are operated by such agencies as the Department of Energy, which supply blind-spike samples such as milk or water containing concentrations of radionuclides unknown to the testing laboratory. This type of program provides an independent check of the analytical laboratory's procedures and processes, and provides indication of possible weaknesses. In addition, Environmental Inc. has its own in-house QA program of blind-spike and duplicate analyses.

Vendor in-house spike sampling was performed without a failure and in-house blank analyses were performed within acceptable ranges.

ERA soil sample ERSO-1 050 and DOE soil sample MASO-1 146 failed testing for plutonium isotopes during first quarter testing. These four failures (high bias) were traced back to a cross contaminated source set.

MAAP-1 151 air filter failed its PU-238 testing because of this faulty standard set. The results of re-analysis with a replacement tracer purchased from NIST produced satisfactory results. MASO-1 146 also failed (low) for uranium isotopes. This issue is under current investigation. Since over 80% of the testing labs had unacceptable results, it appears that the DOE sample may be suspect. The FCS REMP program does not perform transuranic analyses of soil or air filters.

MASO-1146 also failed for Cs-134 in the gamma scan. The testing listed Cs-134 as present, when the sample had none. The sample was recounted, and two gamma spectral lines for Cs-134 were present. Six other gamma nuclides were identified correctly on each count. No further explanation was provided for the failures.

FCS REMP program does perform gamma scans of soil/river sediment; no Cs-1 34 was detected in station samples tested.

MAAP-1 151 air particulate filter, failed a gamma scan for Co-57. This was caused by EU-1 52 library issue.

Re-analysis with the interfering line addressed produced acceptable result. No plant related nuclides were detected in FCS REMP gamma scans.

ERW- 055 failed low on Fe-55 testing. An efficiency calculation error was discovered. After recalculation the sample passed. A new test was reordered and performed with satisfactory results. The DOE water sample, MAW-4431, failed high.

The DOE sample in question was reanalyzed and produced satisfactory results. Both the DOE and ERA water sample failed initial testing. Since FCS Fe-55 is performed within the RETS program, the environmental vendor does not receive a Fe-55 analytics cross check. The RETS/Rad waste vendor did pass its testing, and no Fe-55 was identified in station effluent reporting.

No test results failed both the ERA and DOE methodologies for a given sample type. Reanalysis produced acceptable results. The ordering of additional tests and successful testing after corrections were applied, visibly demonstrates the vendor's commitment to reporting and resolving deficiencies.

These results indicate the vendor's ability to self-identify and correct any deviations from acceptable or expected results. The test results had no impact on Fort Calhoun samples and were documented as such by the vendor.

Page 14 of 14

~'ArIEnvironmental, Inc.

IMidwest Laboratory 700 Larndwehr Road -Norlthbrook. IL 60062-23 f0 phone (847) 564-0700 . fax (847) 564-4517 APPENDIX A INTERLABORATORY COMPARISON PROGRAM RESULTS NOTE: Environmental Inc., Midwest Laboratory participates in intercompadson studies administered by Environmental Resources Associates, and serves as a replacement for studies conducted previously by the U.S. EPA Environmental Monitoring Systems Laboratory, Las Vegas, Nevada. Results are reported in Appendix A. TLD Intercomparison results, in-house spikes, blanks, duplicates and mixed analyte performance evaluation program results are also reported. Appendix A is updated four times a year; the complete Appendix is included in March, June, September and December monthly progress reports only.

January, 2014 through December, 2014

Appendix A Interlaboratory 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 environmental sample crosscheck program administered by Environmental Resources Associates, serving as a replacement for studies conducted previously by the U.S. EPA Environmental Monitoring Systems Laboratory, Las Vegas, Nevada.

Table A-2 lists results for thermoluminescent dosimeters (TLDs), via International Intercomparison of Environmental Dosimeters, when available, and internal laboratory testing.

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

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

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

Complete analytical data for duplicate analyses is available upon request.

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

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

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

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

Al

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

Concentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Result b Result C Limits Acceptance ERW-1384 4/7/2014 Sr-89 40.29 +/- 5.76 36.70 27.50 +/- 43.60 Pass ERW-1384 4/7/2014 Sr-90 24.08 +/- 2.35 26.50 19.20 +/- 30.90 Pass ERW-1385 4/7/2014 Ba-133 78.23 +/- 3.93 87.90 74.00 +/- 96.70 Pass ERW-1385 4/7/2014 Co-60 62.75 +/- 3.53 64.20 57.80 +/- 73.10 Pass ERW-1385 4/7/2014 Cs-134 44.97 +/- 3.99 44.30 35.50 +/- 48.70 Pass ERW-1385 4/7/2014 Cs-137 88.54 +/- 4.93 89.10 80.20 +/- 101.00 Pass ERW-1385 4/7/2014 Zn-65 249.1 +/- 10.4 235.0 212.0 - 275.0 Pass ERW-1388 4/7/2014 Gr. Alpha 56.70 +/- 2.47 61.00 31.90 +/- 75.80 Pass ERW-1388 4/7/2014 Gr. Beta 32.10 +/- 1.20 33.00 21.40 +/- 40.70 Pass ERW-1391 4/7/2014 1-131 25.52 +/- 1.12 25.70 21.30 +/- 30.30 Pass ERW-1394 4/7/2014 Ra-226 12.30 +/- 0.61 12.40 9.26 +/- 14.30 Pass ERW-1394 4/7/2014 Ra-228 5.08 +/- 1.16 4.26 2.46 +/- 5.86 Pass ERW-1394 4/7/2014 Uranium 10.76 +/- 0.74 10.20 7.95 +/- 11.80 Pass ERW-1397 4/7/2014 H-3 8982 +/- 279 8770 7610 -9650 Pass ERW-5382 10/6/2014 Sr-89 29.40 +/- 5.32 31.40 22.80 +/- 38.10 Pass ERW-5382 10/612014 Sr-90 19.19 +/- 1.85 21.80 15.60 +/- 25.70 Pass ERW-5385 10/6/2014 Ba-133 43.54 +/- 4.54 49.10 40.30 +/- 54.50 Pass ERW-5385 10/6/2014 Cs-134 81.95 +/- 7.49 89.80 73.70 +/- 98.80 Pass ERW-5385 10/6/2014 Cs-137 95.76 +/- 5.50 98.80 88.90 +/- 111.00 Pass ERW-5385 10/6/2014 Co-60 90.25 +/- 2.77 92.10 82.90 +/- 104.00 Pass ERW-5385 10/6/2014 Zn-65 327.4 +/- 23.3 310.0 279.0 -362.0 Pass ERW-5388 10/6/2014 Gr. Alpha 30.88 +/- 8.05 37.60 19.40 +/- 46.10 Pass ERW-5388 10/612014 G. Beta 20.47 t 4.75 27.40 17.30 +/- 35.30 Pass ERW-5392 10/6/2014 1-131 19.58 +/- 2.35 20.30 16.80 - 24.40 Pass ERW-5394 10/6/2014 Ra-226 15.10 +/- 1.81 14.70 11.00 +/- 16.90 Pass ERW-5394 10/6/2014 Ra-228 4.42 +/- 0.86 4.31 2.50 +/- 5.92 Pass ERW-5394 10/6/2014 Uranium 5.51  :- 0.37 5.80 4.34 +/- 6.96 Pass ERW-5397 10/6/2014 H-3 6876 +/- 383 6880 5940 - 7.570 Pass Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the crosscheck program for proficiency testing in drinking water conducted by Environmental Resources Associates (ERA).

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

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

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TABLE A-2. Thermoluminescent Dosimetry, (TLD, CaSO 4 : Dy Cards).

mR Lab Code Date Known Lab Result Control Description Value +/- 2 sigma Limits Acceptance Environmental, Inc.

2014-1 511512014 50 cm. 26.83 34.43 +/- 3.76 18.78 - 34.88 Pass 2014-1 5/15/2014 60 cm. 18.63 22.20 +/- 1.16 13.04 - 24.22 Pass 2014-1 5/15/2014 70 cm. 13.69 14.74 +/- 0.80 9.58 - 17.80 Pass 2014-1 5115/2014 75 cm. 11.93 12.68 +/- 1.05 8.35 - 15.51 Pass 2014-1 5/15/2014 80 cm. 10.48 11.81 +/- 0.91 7.34 - 13.62 Pass 2014-1 5/15/2014 90 cm. 8.28 7.72 +/- 0.71 5.80 - 10.76 Pass 2014-1 5/15/2014 100 cm. 6.71 6.46 +/- 0.71 4.70 - 8.72 Pass 2014-1 5/15/2014 110 cm. 5.54 5.25 +/- 1.03 3.88 - 7.20 Pass 2014-1 5/15/2014 120 cm. 4.66 4.76 +/- 0.48 3.26 - 6.06 Pass 2014-1 5/15/2014 135 cm. 3.68 2.87 +/- 0.46 2.58 - 4.78 Pass 2014-1 5/15/2014 150 cm. 2.98 2.30 +/- 0.15 2.09 - 3.87 Pass 2014-1 5/15/2014 165 cm. 2.46 2.09 +/- 0.28 1.72 - 3.20 Pass 2014-1 5/15/2014 180 cm. 2.07 1.75 +/- 0.21 1.45 -2.69 Pass Environmental, Inc.

2014-2 12/9/2014 30 cm. 77.04 84.03 +/- 8.47 53.90 - 100.20 Pass 2014-2 12/9/2014 30 cm. 77.04 83.74 +/- 12.02 53.90 - 100.20 Pass 2014-2 12/9/2014 60 cm. 19.26 20.39 +/- 2.37 13.50 - 25.00 Pass 2014-2 12/9/2014 60 cm. 19.26 20.33 +/- 1.19 13.50 - 25.00 Pass 2014-2 12/9/2014 120 cm. 4.82 5.15 +/- 0.20 3.40 - 6.30 Pass 2014-2 12/9/2014 120 cm. 4.82 5.20 + 0.45 3.40 - 6.30 Pass 2014-2 12/9/2014 150 cm. 3.08 3.84 +/- 0.61 2.20 - 4.00 Pass 2014-2 12/9/2014 150 cm. 3.08 3.17 +/- 0.38 2.20 - 4.00 Pass 2014-2 12/9/2014 150 cm. 3.08 3.31 +/- 0.32 2.00 - 4.00 Pass 2014-2 12/9/2014 180 cm. 2.14 2.27 +/- 0.51 1.50 -2.80 Pass 2014-2 12/9/2014 180 cm. 2.14 2.23 +/- 0.12 1.50 -2.80 Pass 2014-2 12/9/2014 180 cm. 2.14 2.74 +/- 0.48 1.50 -2.80 Pass 2014-2 12/9/2014 180 cm. 2.14 1.97 +/- 0.41 1.50 - 2.80 Pass A2-1

TABLE A-3. In-House "Spiked" Samples Concentration (pCi/L)a Lab Code b Date Analysis Laboratory results Known Control 2s. n=1 c Activity Limits d Acceptance SPW-1011 1/13/2014 Ra-228 35.47 +/- 2.55 30.85 21.60 - 40.11 Pass SPAP-103 1/13/2014 Gr. Beta 43.91 +/- 0.34 44.82 26.89 - 62.75 Pass SPAP-105 1/13/2014 Cs- 134 2.46 +/- 0.67 2.82 1.69 - 3.95 Pass SPAP-105 111312014 Cs-137 102.4 +/- 2.7 99.9 89.9 - 109.9 Pass SPW-107 1/13/2014 H-3 62,380 +/- 707 62,246 49,797 - 74,695 Pass SPW-129 1/15/2014 Cs-134 69.90 +/- 3.71 78.00 68.00 - 88.00 Pass SPW-129 1/15/2014 Cs-137 84.36 +/-_7.06 75.77 65.77 -85.77 Pass SPW-129 1/15/2014 Sr-90 39.48 +/- 1.52 39.20 31.36 - 47.04 Pass SPW-130 1/15/2014 Ni-63 255.8 +/- 3.8 204.0 142.8 -265.2 Pass SPW-133 1115/20114 C-14 3153 +/- 15 4737 2842 -6632 Pass SPMI-135 1/15/2014 Cs-134 76.80 +/- 4.04 78.00 68.00 - 88.00 Pass SPMI-1 35 1/15/2014 Cs-137 80.44 +/- 6.63 75.80 65.80 - 85.80 Pass W-12014 1/20/2014 Gr. Alpha 19.69 +/- 0.41 20.00 10.00 - 30.00 Pass W-12014 1/20/2014 Gr. Beta 30.35 +/- 0.33 30.90 20.90 - 40.90 Pass SPW-297 1/29/2014 Tc-99 104.2 +/- 1.7 107.8 75.5 - 140.2 Pass SPW-657 2/25/2014 Ra-226 15.84 +/- 0.45 16.70 11.69 - 21.71 Pass SPW-1127 3/26/2014 U-238 43.28 +/- 2.56 41.72 29.20 - 54.24 Pass SPW-1917 3/28/2014 Pu-238 27.37 +/- 2.13 23.80 14.28 - 33.32 Pass SPW-1786 412512014 Tc-99 531.1 +/- 8.7 539.15 377.41 -700.90 Pass SPW-2168 5/21/2014 Cs-134 70.90 +/- 5.81 69.50 59.50 - 79.50 Pass SPW-2168 5/21/2014 Cs-137 79.72 +/- 6.49 75.17 65.17 -85.17 Pass SPW-2168 5/21/2014 Sr-89 83.35 +/- 5.05 72.85 58.28 - 87.42 Pass SPW-2168 5/21/2014 Sr-90 33.37 +/- 1.52 .38.87 31.10 - 46.64 Pass SPMI-2170 5/21/2014 Cs-134 64.15 +/- 4.93 69.50 59.50 - 79.50 Pass SPMI-2170 5/21/2014 Cs-137 76.21 +/- 6.91 75.17 65.17 -85.17 Pass SPMI-2170 5/21/2014 Sr-89 65.82 +/- 4.89 72.85 58.28 - 87.42 Pass SPMI-2170 5/2112014 Sr-90 40.90 +/- 1.59 38.87 31.10 -46.64 Pass SPW-2792 6/18/2014 U-238 44.80 +/- 1.54 41.70 29.19 - 54.21 Pass SPW-2796 6/18/2014 C-14 3495 +/- 9 4,737 2,842 - 6632 Pass WW-2836 6130/2014 Co-60 131.8 +/- 6.9 140.90 126.81 - 154.99 Pass WW-2836 6/30/2014 Cs-137 143.8 +/- 9.1 145.60 131.04 - 160.16 Pass WW-2836 6/30/2014 H-3 6220 +/- 238 6,361 5,089 - 7633 Pass A3-1

TABLE A-3. In-House "Spiked" Samples 0

Concentration (pCi/L)

Lab Code b Date Analysis Laboratory results Known Control 2s, n=1 C Activity Limits d Acceptance SPW-3486 7/17/2014 Fe-55 2211 +/- 72 2319 1855 -2783 Pass SPW-080714 8/7/2014 Gr. Alpha 18.42 +/- 0.40 20.10 10.05 - 30.15 Pass SPW-080714 817/2014 Gr. Beta 31.70 +/- 0.40 32.40 22.40 - 42.40 Pass SPW-081214 8/12/2014 Pu-238 22.59 +/- 2.15 22.70 18.16- 27.24 Pass SPW-4093 8/13/2014 1-131(G) 59.95 +/- 6.17 59.62 49.62 - 69.62 Pass SPW-4093 8/13/2014 Sr-90 39.46 +/- 1.55 38.65 28.65 - 48.65 Pass SPW-4093 8/13/2014 Sr-89 105.5 +/- 4.9 115.0 92.0 - 149.5 Pass SPMI-4095 8/13/2014 1-131(G) 59.92 +/- 6.17 59.62 49.62 - 69.62 Pass SPMI-4095 8/13/2014 1-131 60.05 +/- 0.72 59.62 47.70 - 71.54 Pass SPW-4104 8/13/2014 Ni-63 200.1 +/- 3.4 203.2 142.2 - 264.1 Pass SPW-4106 8/13/2014 H-3 59,597 +/- 695 60,261, 48209 - 72313 Pass SPW-4108 8/13/2014 Cs- 134 2.45 +/- 0.81 2.32 0.00- 12.32 Pass SPW-4108 8/13/2014 Cs-137 90.20 +/- 3.74 98.56 88.56 - 108.56 Pass SPAP-41 10 8/13/2014 Gr. Beta 43.65 +/-0.11 44.19 34.19 - 54.19 Pass SPF-4112 8/13/2014 1-131 2.64 +/- 0.38 2.86 0.00 m12.86 Pass SPF-4112 8/13/2014 Cs-1 34 0.91 +/- 0.03 1.03 0.00 -11.03 Pass SPF-4112 8/13/2014 Cs-1 37 2.61 +/- 0.06 2.39 0.00 - 12.39 Pass SPW-081414 8/14/2014 *H-3 14,663 +/- 788 17,700 14160 - 21240 Pass W081614 8/16/2014 Ra-226 14.30 +/- 0.37 16.70 11.69 - 21.71 Pass W082614 8126/2014 Ra-228 27.18 +/- 2.13 30.49 20.49 -40.49 Pass SPW-090414 9/4/2014 Gr. Alpha 17.85 +/- 0.39 20.10 10.05 - 30.15 Pass SPW-090414 9/4/2014 Gr. Beta 30.03 +/- 0.33 30.90 20.90 - 40.90 Pass SPW-5124 9/29/2014 Ra-228 32.93 +/- 2.38 31.94 21.94 -41.94 Pass W100714 10/7/2014 Gr. Alpha 18.56 +/- 0.40 20.10 10.05 -30.15 Pass W100714 10/7/2014 Gr. Beta 27.71 _ 0.32 30.90 20.90 - 40.90 Pass W111014 11/10/2014 Gr. Alpha 17.84 +/- 0.38 20.10 10.05 - 30.15 Pass W111014 11/10/2014 Gr. Beta 30.12 +/- 0.33 30.90 20.90 - 40.90 Pass W112514 11/25/2014 Ra-226 16.63 +/- 0.41. 16.70 11.69 - 21.71 Pass W120814 12/8/2014 Gr. Alpha 19.29 _ 0.41 20.10 10.05 - 30.15 Pass W120814 12/8/2014 Gr. Beta 27.93 +/- 0.32 30.90 20.90 40.90 Pass SPW-71149 12/26/2014 Ni-63 217.53 +/- 3.25 203.10 142.17 -264.03 Pass 0 Liquid sample results are reported in pCi/Liter, air filters( pCi/m3), charcoal (pCi/charcoal canister), and solid samples (pCi/kg).

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

' Results are based on single determinations.

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

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

A3-2

TABLE A-4. In-House "Blank" Samples Concentration .(pCi)L)r Lab Code Sample Date Analysisb Laboratory results (4.66o) Acceptance Type LLD Activityc Criteria (4.66 -)

SPW-1001 Water 1113/2014 Ra-228 0.74 0.39 t 0.39 2 SPAP-102 Air Particulate 1/13/2014 Gr. Beta 0.003 0.015 t 0.003 0.01 SPAP-104 Air Particulate 111312014 Cs-134 0.006 0.005 +/- 0.005 0.05 SPAP-104 Air Particulate 1/13/2014 Cs-137 0.004 -0.002 +/- 0.005 0.05 SPW-106 Water 1/13/2014 H-3 151.0 115.0 +/- 97.0 200 SPW-128 Water 1/15/2014 Cs-134 2.85 0.59 +/- 1.46 10 SPW-128 Water 1115/2014 Cs-137 2.52 0.68 +/- 1.64 10 SPW-128 Water 1/15/2014 Sr-90 0.61 0.74 +/- 0.36 1 SPW-130 Water 1/1512014 Ni-63 10.85 1.57 +/- 6.60 20 SPW-133 Water 1/15/2014 C-14 13.51 3.10 +/- 8.27 200 SPMI-134 Milk 1/15/2014 Cs-134 4.43 0.14 +/- 2.46 10 SPMI-134 Milk 1/15/2014 Cs-137 1.92 -2.07 +/- 2.48 10 W-12014 Water 1/20/2014 Gr. Alpha 0.48 -0.31 +/- 0.31 2 W-12014 Water 1/20/2014 Gr. Beta 0.78 -0.24 +/- 0.54 4 SPW-297 Water 1/29/2014 Tc-99 5.63 -4.42 +/- 3.34 10 SPW-656 Water 2/25/2014 Ra-226 0.03 0.01 +/- 0.02 1 SPW-1126 Water 3/2612014 U-238 0.13 0.08 +/- 0.12 1 SPW-1127 Water 3/2612014 U-233/234 0.13 0.11 +/- 0.13 1 SPW-1127 Water 3/26/2014 U-238 0.00 0.08 +/- 0.12 1

.SPW-1917 Water 3/28/2014 Pu-238 0.02 0.01 +/- 0.01 1 SPW-1785 Water 4/25/2014 Tc-99 5.61 -4.33 +/- 3.33 10 SPW-1831 Water 4/30/2014 1-131 0.21 0.07 +/- 0.12 0.5 SPW-2167 Water 5/21/2014 Cs-134 2.29 -0.79 +/- 1.35 10 SPW-2167 Water 5/21/2014 Cs-137 2.46 0.36 +/- 1.48 10 SPW-2167 Water 5/21/2014 1-131(G) 2.77 '0.25 +/- 1.53 20 SPW-2167 Water 5/21/2014 Sr-89 0.81 0.01 +/- 0.62 5 SPW-2167 Water 5/21/2014 Sr-90 0.52 0.03 +/- 0.24 1 SPMI-2169 Milk 5121/2014 Cs-134 4.45 -0.55 +/- 2.39 10 SPMI-2169 Milk 5/21/2014 Cs-137 3.91 -0.52 +/- 2.60 1.0 SPMI-2169 Milk 5/21/2014 1-131(G) 4.31 2.57 _ 2.21 20 SPMI-2169 Milk 5121/2014 Sr-89 0.98 -0.02 +/- 0.83 5 SPMI-2169 Milk 5/21/2014 Sr-90 0.61 0.35 00.32 1 SPW-2793 Water 6/18/2014 U-238 0.08 0.02 +/- 0.06 1 A4-1

TABLE A-4. In-House "Blank" Samples Concentration (pCi/L)a Lab Code Sample Date Analysisb Laboratory results (4.66a) Acceptance Type LLD Activityc Criteria (4.66 a)

SPW-3485 Water 7/17/2014 Fe-55 597.6 10.3 +/- 363.3 1000 SPW-4092 Water 8/13/2014 1-131(G) 3.59 0.91 +/- 1.95 20 SPW-4092 Water 8/13/2014 Cs- 134 3.71 -0.31 +/- 1.77 10 SPW-4092 Water 8/13/2014 Cs-137 2.71 -2.20 +/- 1.98 10 SPW-4092 Water 8/13/2014 Sr-89 0.89 0.11 +/-_0.63 5 SPW-4092 Water 8/13/2014 Sr-90 0.52 -0.05 +/- 0.23 1 SPMI-4094 Milk 8/13/2014 1-131 0.35 0.03 +/- 0.20 0.5 SPMI-4094 Milk 8/13/2014 1-131(G) 4.50 -0.41 +/- 2.44 20 SPMI-4094 Milk 8/13/2014 Cs-134 4.30 -0.84 +/- 2.02 10 SPMI-4094 Milk 8/13/2014 Cs-137 3.45 0.96 +/- 2.51 10 SPMI-4094 Milk 8/13/2014 Sr-89 0.80 -0.19 +/- 0.79 5 SPMI-4094 Milk 8/13/2014 Sr-90 0.47 0.71 +/- 0.30 1 SPW-4103 Water 8/13/2014 Ni-63 0.12 0.02 +/- 0.07 20 SPW-4105 Water 8/13/2014 H-3 138.1 104.1 +/- 78.1 200 SPW-4107 Water 8/1312014 1-131(G) 3.21 -3.68 +/- 1.33 20 SPW-4107 Water 8/13/2014 Cs-134 2.72 -0.62 +/- 1.49 10 SPW-4107 Water 8/13/2014 Cs-137 2.56 0.75 +/- 1.62 10 SPAP-4109 Air Particulate 8/13/2014 Gr. Beta 0.004 -0.003 +/- 0.00 0.01 SPF-4111 Fish 8/13/2014 Cs-134 0.01 0.00 +/- 0.01 100 SPF-4111 Fish 8/13/2014 Cs-137 0.01 -0.01 +/- 0.01 100 SPF-4 111 Fish 8/13/2014 Co-60 0.01 0.00 +/- 0.01 100 W-081614 Water 8/16/2014 Ra-226 0.04 0.05 +/- 0.03 1 W-082614 Water 8/16/2014 Ra-228 0.62 0.29 +/- 0.40 2 W-092314 Water 9/23/2014 Ra-226 0.02 0.04 +/- 0.02 1 W-5123 Water 9129/2014 Ra-228 0.70 .0.43 +/- 0.38 2 W-100714 Water 10/7/2014 Gr. Alpha 0.39 0.04 +/- 0.28 2 W-100714 Water 10/7/2014 Gr. Beta 0.76 -0.06 +/- 0.53 4 W-111014 Water 11/10/2014 Gr. Alpha 0.39 0.01 +/- 0.28 2 W-111014 Water 11/10/2014 Gr. Beta 0.75 -0.25 +/- 0.52 4 W-112514 Water 11/25/2014 Ra-226 0.05 0.02 +/- 0.03 2 W-120814 Water 12/8/2014 Gr. Alpha 0.42 0.04 +/- 0.30 2 W-120814 Water 12/812014 Gr. Beta 0.74 -0.42 +/- 0.51 4 SPW-7148 Water 12/26/2014 Ni-63 10.80 -1.80 +/- 6;50 20 3

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

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

c Activity reported Is a net activity result.

A4-2

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)e Averaged Lab Code Date Analysis First Result Second Result Result Acceptance AP-7829, 7830 1/2/2014 Be-7 0.08 +/- 0.02 0.06 +/- 0.01 0.07 +/- 0.01 Pass AP-7913, 7914 1/2/2014 Be-7 0.07 +/- 0.01 0.06 +/- 0.01 0.06 +/- 0.01 Pass AP-7871, 7872 1/3/2014 Be-7 0.05 +/- 0.02 0.06 +/- 0.01 0.06 +/- 0.01 Pass S-43, 44 1/9/2014 K-40 19.28 +/- 0.57 19.24 +/- 0.57 19.26 +/- 0.40 Pass SG-64, 65 1/9/2014 Gr. Alpha 686.08 +/- 69.97 642.46 +/- 65.59 664.27 +/- 47.95 Pass SG-64, 65 1/9/2014 Ra-226 97.30 +/- 9.78 92.20 +/- 9.27 94.75 +/- 6.74 Pass SG-64, 65 119/2014 Ra-228 91.90 +/- 9.30 97.10 +/- 9.87 94.50 +/- 6.78 Pass S-136, 137 1/13/2014 Be-7 14.90 +/- 0.39 14.88 +/- 0.38 14.89 +/- 0.27 Pass S-136, 137 1/13/2014 K-40 3.29 + 0.36 3.93 +/- 0.36 3.61 +/- 0.25 Pass WW-220, 221 1/13/2014 H-3 231.85 +/- 80.45 273.46 +/- 82.47 252.66 +/- 57.60 Pass WW-262,263 1121/2014 H-3 294.80 +/- 89.80 265.00 +/- 88.47 279.90 +/- 63.03 Pass WW-346, 347 1/24/2014 H-3 934.97 +/- 118.47 965.59 +/- 119.52 950.28 +/- 84.14 Pass SWU-367, 368 1/29/2014 Gr. Beta 0.74 +/- 0.38 1.31 +/- 0.42 1.02 +/- 0.28 Pass F-409, 410 2/2/2014 Cs-137 0.05 +/- 0.02 0.05 +/- 0.02 0.05 +/- 0.01 Pass F-409, 410 2/2/2014 Gr. Beta 3.60 +/- 0.07 3.72 +/- 0.07 3.66 +/- 0.05 Pass AP-7829, 7830 1/212014 Be-7 0.08 +/- 0.02 0.06 +/- 0.01 0.07 +/- 0.01 Pass AP-7913, 7914 1/2/2014 Be-7 0.07 +/- 0.01 0.06 +/- 0.01 0.06 +/- 0.01 Pass AP-7871, 7872 1/3/2014 Be-7 0.05 +/- 0.02 0.06 +/- 0.01 0.06 +/- 0.01 Pass S-43, 44 1/9/2014 K-40 19.28 +/- 0.57 19.24 +/- 0.57 19.26 +/- 0.40 Pass SG-64, 65 1/9/2014 Gr. Alpha 686.08 +/- 69.97 642.46 +/- 65.59 664.27 +/- 47.95 Pass SG-64. 65 1/9/2014 Ra-226 97.30 +/- 9.78 92.20 +/- 9.27 94.75 +/- 6.74 Pass SG-64, 65 1/9/2014 Ra-228 91.90 +/- 9.30 97.10 +/- 9.87 94.50 +/- 6.78 Pass S-136, 137 1113/2014 Be-7 14.90 +/-0.39 14.88 +/- 0.38 14.89 +/- 0.27 Pass S-136, 137 1/13/2014 K-40 3.29 +/- 0.36 3.93 +/- 0.36 3.61 +/- 0.25 Pass WW-220,221 1/13/2014 H-3 231.85 +/- 80.45 273.46. +/- 82.47 252:66 +/- 57.60 Pass WW-262, 263 1/21/2014 H-3 294.80 +/- 89.80 265.00 +/- 88.47 279.90 +/- 63.03 Pass WW-346, 347 1/24/2014 H-3 934.97 +/- 118.47 965.59 +/- 119M52 950.28 +/- 84.14 Pass SWU-367, 368 1/29/2014 Gr. Beta 0.74 +/- 0.38 1.31 +/- 0.42 1.02 +/- 0.28 Pass F-409, 410 2/2/2014 Cs- 137 0.05 +/- 0.02 0.05 +/- 0.02 0.05 +/- 0.01 Pass F-409, 410 2/2/2014 Gr. Beta 3.60 +/- 0.07 3.72 +/- 0.07 3.66 +/- 0.05 Pass WW-491, 492 2/6/2014 H-3 474.00 +/- 101.10 583.10 +/- 105.30 528.55 +/- 72.99 Pass WW-575, 576 2/13/2014 H-3 196.69 +/- 82.94 154.68 +/- 80.89 175.69 +/- 57.93 Pass W-617, 618 2/14/2014 H-3 526.29 +/- 97:65 579.51 +/- 99.77 552.90 +/- 69.80 Pass SWU-743,744 2/25/2014 Gr. Beta 1.61 +/- 0.65 1.73 +/- 0.71 1.67 +/- 0.48 Pass S-700, 701 2/26/2014 K-40 21.32 +/- 0.64 21.15 +/- 0.59 21.24 +/- 0.44 Pass S-806, 807 3/4/2014 K-40 24.79 +/- 0.57 24.17 +/- 0.59 24.48 +/- 0.41 Pass SG-928, 929 3/11/2014 Ac-228 6.78 +/- 0.34 6.94 +/- 0.35 6.86 +/- 0.24 Pass SG-928, 929 3/11/2014 Bi-214 5.32 +/- 0.20 5.34 +/- 0.22 5.33 +/- 0.15 Pass SG-928, 929 3/11/2014 K-40 4.79 +/- 0.80 6.24 +/- 1.01 5.52 +/- 0.64 Pass SG-928, 929 3/11/2014 Pb-212 2.70 +/- 0.09 2.75 +/- 0.09 2.73 +/- 0.06 Pass SG-928, 929 3/11/2014 Pb-214 5.39 +/- 0.17 5.53 +/- 0.17 5.46 +/- 0.12 Pass SG-928, 929 3/11/2014 Th-228 6.10 +/- 2.07 4.76 +/- 1.93 5.43 +/- 1.42 Pass SG-928, 929 3/11/2014 TI-208 0.92 +/- 0.06 0.91 +/- 0.06 0.92 +/- 0,04 Pass A5-1

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)'

Averaged Lab Code Date Analysis First Result Second Result Result Acceptance S-2119, 2120 3/12/2014 Ac-228 0.76 +/- 0.20 0.73 +/- 0.21 0.75 t 0.15 Pass S-2119, 2120 3/12/2014 Cs-137 0.13 +/- 0.05 0.11 t 0.05 0.12 t 0.04 Pass S-2119, 2120 3/12/2014 K-40 17.48 +/- 1.48 18.39 +/- 1.53 17.94 +/- 1.06 Pass S-2119, 2120 3/12/2014 Pb-214 0.73 +/- 0.18 0.63 +/- 0.12 0.68 +/- 0.11 Pass F-1594, 1595 3/16/2014 Cs-137 0.02 +/- 0.01 0.03 +/- 0.02 0.03 +/- 0.01 Pass SO-1115, 1116 3/18/2014 Cs-137 0.06 +/- 0.01 0.06 +/- 0.00 0.06 +/- 0.00 Pass SO-1115, 1116 3/18/2014 Gr. Beta 23.30 +/- 2.10 24.40 +/- 2.20 23.85 +/- 1.52 Pass SO-1115, 1116 3/18/2014 K-40 12.63 +/- 0.18 12.84 +/- 0.15 12.74 +/- 0.12 Pass SO-1115, 1116 3/18/2014 U-233/4 0.11 +/- 0.02 0.12 +/- 0.02 0.12 +/- 0.01 Pass SO-1115. 1116 3/18/2014 U-238 0.13 +/- 0.02 0.14 +/- 0.02 0.14 +/- 0.01 Pass S-1033. 1034 3/19/2014 Ac-228 0.99 +/- 0.20 1.13 :t 0.26 1.06 +/- 0.16 Pass S-1033, 1034 3/19/2014 Bi-214 1.02 +/-0.18 0.98 +/- 0.16 1.00 +/- 0.12 Pass S-1033, 1034 3/19/2014 Cs-137 0.15 +/- 0.04 0.14 +/- 0.04 0.15 +/- 0.03 Pass S-1033, 1034 3/19/2014 K-40 15.39 +/- 1.19 15.13 +/- 1.19 15.26 +/- 0.84 Pass S-1033, 1034 3/19/2014 Pb-214 1.09 +/- 0.13 0.88 +/- 0.17 0.99 +/- 0.11 Pass S-1033, 1034 3/19/2014 TI-208 0.36 +/- 0.05 0.31 +/- 0.05 0.34 +/- 0.04 Pass W-1094. 1095 3/23/20.14 Ra-226 0.30 +/- 0.20 0.70 +/- 0.20 0.50 +/- 0.14 Pass W-1094, 1095 3/23/2014 Ra-228 1.10 +/- 0.79 1.13 +/-0.86 1.12 +/- 0.58 Pass AP-1197, 1198 3/27/2014 Be-7 0.17 +/- 0.08 0.14 +/- 0.08 0.15 +/- 0.05 Pass AP-1698, 1699 3/31/2014 Be-7 0.06 +/- 0.02 0.07 +/- 0.02 0.07 +/- 0.01 Pass E-1218,1219 4/1/2014 Gr. Beta 1.57 +/- 0.04 1.57 +/- 0.04 1.57 +/- 0.03 Pass E-1218, 1219 4/11/2014 K-40 1.26 +/-0.14 1.31 +/- 0.18 1.29 +/- 0.11 Pass SWU-1260, 1261 4/1/2014 Gr. Beta 2.81 +/- 0.51 2.94 +/- 0.50 2.88 +/- 0.36 Pass AP-1615, 1616 4/1/2014 Be-7 0.07 +/- 0:01 0.07 +/- 0.02 0.07 .+/- 0.01 Pass AP-1657, 1658 4/2/2014 Be-7 0.07 +/- 0.01 0.08 +/- 0.01 0.07 +/- 0.01 Pass AP-1804, 1805 4/3/2014 Be-7 0.05 +/- 0.02 0.06 +/- 0.01 0.06 +/- 0.01 Pass P-1489. 1490 4/7/2014 H-3 582.31 +/- 101.85 505.07 +/-98.72 543.69 +/- 70.92 Pass BS-1531, 1532 4/16/2014 K-40 0.51 +/- 0.19 0.58 +/- 0.23 0.54 +/- 0.15 Pass S-1909, 1910 4/22/2014 K-40 14.71 +/- 0.54 14.78 t 0.53 14.75 +/- 0.38 Pass SWU-1867, 1868 4/29/2014 Gr. Beta 2.28 +/- 0.40 1.67 +/- 0.35 1.98 +/- 0.27 Pass AP-1930, 1931 5/1/2014 Be-7 0.16 +/- 0.09 0.19 +/- 0.11 0.17 +/--0.07 Pass SL-1888, 1889 5/11/2014 Be-7 0.80 +/- 0.04 0.76 +/- 0.08 0.78 +/- 0.05 Pass SL-1888, 1889 5/1/2014 Cs 137 0.01 +/- 0.00 0.01 +/- 0.00 0.01 +/- 0.00 Pass SL-1888, 1889 5/1/2014 Gr. Beta 11.57 +/- 0.72 12.67 +/- 0.78 12.12 - 0.53 Pass SL-1888, 1889 5/1/2014 K-40 1.04 +/- 0.05 1.00 +/- 0.09 1.02 +/- 0.05 Pass SO-1972. 1973 5/1/2014 Cs-137 0.12 +/- 0.03 0.10 +/- 0.02 0.11 +/-0.02 Pass SO-1972, 1973 5/1/2014 Gr. Alpha 7.51 +/- 3.24 9.09 +/- 3.63 8.30 +/- 2.43 Pass SO-1972, 1973 5/1/2014 Gr. Beta 29.89 +/- 3.25 31.42 +/- 3.04 30.66 +/- 2.23 Pass SO-1972. 1973 5/1/2014 K-40 20.45 +/- 0.85 20.88 +/- 0.76 20.66 +/- 0.57 Pass W-617, 618 5/8/2014 H-3 175.13 +/- 83.82 177.17 +/- 83.92 176.15 +/- 59.31 Pass AP-2077, 2078 5/8/2014 Be-7 0.23 +/- 0.11 0.18 +/- 0.11 0.20 +/- 0.08 Pass A5-2

TABLE A-5. In-House "Duplicate" Samples 0

Concentration (pCi/L)

Averaged Lab Code Date Analysis First Result Second Result Result Acceptance S-2205. 2206 5/15/2014 Be-7 0.50 +/- 0.19 0.70 +/- 0.18 0.60 +/- 0.13 Pass S-2205,2206 5/15/2014 K-40 33.60 +/- 0.79 33.52 +/- 0.70 33.56 +/- 0.53 Pass VE-2184, 2185 5/19/2014 Be-7 0.62 +/- 0.18 0.53 +/- 0.17 0.58 t 0.12 Pass VE-2184, 2185 5/19/2014 K-40 5.30 +/- 0.44 5.14 +/- 0.44 5.22 +/- 0.31 Pass DW-50102. 50103 5/20/2014 Ra-226 7.07 +/- 0.76 8.31 +/- 0.90 7.69 +/- 0.59 Pass DW-50102. 50103 5/20/2014 Ra-228 5.44 +/- 0.85 6.02 +/- 0.67 5.73 +/- 0.54 Pass SW-2226, 2227 5/21/2014 H-3 14318.00 +/- 347.00 14350.00 +/- 347.00 14334.00 +/- 245.37 Pass DW-50087, 50088 5/21/2014 Gr. Alpha 1.76 +/- 1.09 2.67 +/- 1.01 2.22 +/- 0.74 Pass DW-50090, 50091 5/21/2014 Ra-226 0.61 +/- 0.09 0.47 +/- 0.09 0.54 +/- 0.06 Pass DW-50090, 50091 5/21/2014 Ra-228 0.97 +/- 0.41 1.26 +/- 0.52 1.12 +/- 0.33 Pass DW-50098, 50099 5/21/2014 Gr. Alpha 13.04 +/- 1.36 10.76 +/- 1.26 11.90 +/- 0.93 Pass AP-2289, 2290 5/22/2014 Be-7 0.14 +/- 0.08 0.24 +/- 0.10 0.19 +/- 0.06 Pass PM-3174, 3175 5/28/2014 K-40 30.68 +/- 1.30 32.64 +/- 1.24 31.66 +/- 0.90 Pass G-2415,2416 6/2/2014 Be-7 0.73 +/- 0.16 0.62 +/- 0.28 0.68 +/- 0.16 Pass G-2415, 2416 6/2/2014 Gr. Beta 5.89 +/- 0.09 5.90 +/- 0.09 5.89 +/- 0.06 Pass G-2415, 2416 6/212014 K-40 5.30 +/- 0.49 5.19 +/- 0.65 5.25 +/- 0.41 Pass WW-2541,2542 6/4/2014 H-3 5107.00 +/- 223.00 5029.00 +/- 222.00 5068.00 +/- 157.33 Pass SW-2817, 2818 6/16/2014 H-3 13303.00 +/- 336.00 13130.00 +/- 334.00 13216.50 +/- 236.88 Pass SS-2943, 2944 6/24/2014 K-40 11.49 +/- 0.79 11.8i +/-0.70 11.65 +/- 0.53 Pass S-3048,3049 6/27/2014 K-40 42.51 +/- 1.31 40.04 +/- 1.39 41.28 +/- 0.95 Pass SWT-3216, 3217 7/1/2014 Gr. Beta 2.27 +/- 0.94 2.53 +/- 1.05 2.40 +/- 0.70 Pass AP-3699,3700 7/3/2014 Be-7 0.06 +/- 0.01 0.07 +/- 0.02 0.07 +/- 0.01 Pass S-3300, 3301 7/8/2014 K-40 4.85 +/- 0.97 5.91 +/- 1.17 5.38 +/- 0176 Pass S-3300,3301 7/8/2014 Ac-228 10.23 +/- 0.43 10.18 +/- 0.32 10.21 +/- 0.27 Pass S-3300,3301 718/2014 Ra-226 70.14 +/- 2.37 72.01 +/- 2.38 71.08 +/- 1.68 Pass VE-3237,3238 7/8/2014 K-40 2.54 +/- 0.27 2.63 +/- 0.24 259 +/- 0.18 Pass CF-3384,3385 7/14/2014 K-40 11.10 +/- 0.58 10.69 +/- 0.60 10.90 +/- 0.42 Pass S-3447,3448 7/16/2014 K-40 19.63 +/- 0.64 21.03 +/- 0.96 20.33 +/- 0.58 Pass WW-3573,3574 7/18/2014 H-3 381.58 +/- 85.76 .401.30 +/-.86.67 391.44 +/- 60.96 Pass VE-3594,3595 7/22/2014 K-40 3.04 +/- 0.19 3.21 +/- 0.15 3.13 +/- 0.12 Pass WW-3762.3763 7/25/2014 H-3 315.47 +/- 87.02 327.30 +/- 87.56 321.39 +/- 61.72 Pass SWT-3867, 3868 7/29/2014 Gr. Beta 1.10 +/-0.53 1.51 +/- 0.58 1.31 +/- 0.39 Pass S-3804, 3805 7/30/2014 Ac-228 0.67 +/- 0.11 0.61 +/- 0.10 0.64 +/- 0.07 Pass S-3804, 3805 7/30/2014 Pb-214 0.56 +/- 0.05 0.51 +/- 0.04 0.54 +/- 0.03 Pass LW-3931, 3932 7/31/2014 Gr. Beta 1.04 +/- 0.40 0.95 +/- 0.41 1.00 +/- 0.29 Pass A5-3

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance G-3952,3953 8/4/2014 K-40 5.42 + 0.42 5.35 +/- 0.34 5.38 +/- 0.27 Pass G-3952,3953 8/4/2014 Be-7 1.29 t:0.19 1.24 +/- 0.16 1.27 +/- 0.13 Pass G-3952,3953 8/4/2014 Gr. Beta 8.53 +/- 0.20 8.63 +/- 0.20 8.58 +/- 0.14 Pass G-3952,3953 8/4/2014 H-3 140.16 +/- 93.50 127.25 +/- 92.99 133.70 +/- 65.94 Pass WW-4036, 4037 8/5/2014 H-3 190.60 +/- 82.60 164.70 +/- 81.30 177.65 +/- 57.95 Pass VE--4204,4205 8/11/2014 K-40 6.28 +/- 0.38 6.60 +/- 0.37 6.44 +/- 0.27 Pass WW-4394,4395 8/13/2014 H-3 1540.26 +/- 136.52 1499.15 +/- 135.43 1519.71 +/- 96.15 Pass VE-4183,4184 8/14/2014 K-40 5.70 +/- 0.41 5.73 +/- 0.34 5.72 +/- 0.27 Pass AV-4455, 4456 8/22/2014 Be-7 286.67 +/- 102.30 251.99 +/- 98.94 269.33 +/- 71.16 Pass AV-4455, 4456 8/22/2014 K-40 2547.90 +/- 255.70 2201.40 +/- 203.90 2374.65 +/- 163.52 Pass WW-4500, 4501 8/26/2014 H-3 347.00 +/- 100.00 321.00 +/- 98.00 334.00 +/- 70.01 Pass AP-09021 4AB 9/2/2014 Gr. Beta 0.03 +/- 0.04 0.03 +/- 0.04 0.03 +/- 0.00 Pass SG-5089, 5090 9119/2014 Ac-228 8.26 +/- 0.63 9.48 +/- 0.68 8.87 +/- 0.46 Pass SG-5089, 5090 9/19/2014 Bi-214 4.71 +/- 0.29 4.41 +/- 0.31 4.56 +/- 0.21 Pass SG-5194,5 10/1/2014 Gr. Alpha 276.20 +/- 9.51 258.60 +/- 9.26 267.40 +/- 6.64 Pass SG-5194,5 10/1/2014 Pb-214 43.56 +/- 0.73 43.94 +/- 0.78 43.75 +/- 0.53 Pass SG-5194,5 10/1/2014 Ac-228 59.90 +/- 1.37 62.80 +/- 1.73 61.35 +/- 1.10 Pass S-5632,3 10/8/2014 K-40 19.28 +/--0.88 17.94 +/- 0.89 18.61 +/- 0.63 Pass S-5632,3 10/8/2014 Cs-137 0.15 +/- 0.03 0.13 +/--0.03 0.14 +/- 0.02 Pass S-5632,3 10/8/2014 TI-208 0.32- +/- 0.03 0.34 +/- 0.03 0.33 +/- 0.02 Pass S-5632,3 10/8/2014 Pb-212 0.92 +/- 0.05 0.92 +/- 0.05 0.92 +/- 0.03 Pass S-5632,3 10/8/2014 Pb-214 1.25 +/- 0.08 1.09 +/- 0.09 1.17 +/- 0.06 Pass S-5632,3 10/8/2014 Bi-212 1.25 +/- 0.29 1.34 +/- 0.47 1.29 +/- 0.27 Pass S-5632,3 10/8/2014 Ac-228 1.08 +/- 0.14 1.10 +/-0.14 1.09 +/- 0.10 Pass DW-50243,4 10/13/2014 Gr. Alpha 2.99 +/- 0.94 4.98 +/- 1.17 3.99 +/- 0.75 Pass AP-101414A/B 10/14/2014 Gr. Beta 0.02 +/- 0.00 0.02 +/- 0.00 0.02 +/- 0.00 Pass SG-5590,1 10/15/2014 Pb-214 80.30 +/- 8.08 73.40 +/- 7.51 76.85 +/- 5.52 Pass SG-5590,1 10/15/2014 Ac-228 64.50 +/- 1.87 62.80 +/- 1.15 63.65 +/- 1.10 Pass DW-50251,2 10/16/2014 Ra-226 0.55 +/- 0.13 0.32 +/- 0.10 0.44 +/- 0.08 Pass U-5842.3 10/2012014 H-3 7376 +/-949 7342 +/-947 7359 +/- 670 Pass CF-6074,5 10/21/2014 H-3 7509 +/- 283 7969 +/- 291 7739 +/- 203 Pass CF-6074,5 10/21/2014 K-40 3.09 +/- 0.31 3.30 +/- 0.38 3.20 +/- 0.25 Pass A5-4

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance VE-6269,70 11/3/2014 K-40 6.25 +/- 0.54 6.56 +/- 0.49 6.41 +/- 0.36 Pass VE-6269,70 11/3/2014 Be-7 0.81 +/- 0.28 0.74 +/- 0.18 0.77 +/-0.17 Pass SO-6500.1 11/5/2014 Sr-90 0.07 +/- 0.03 0.07 +/- 0.02. 0.07 +/- 0.02 Pass SO-6500,1 11/5/2014 Gr. Alpha 11.77 +/- 1.73 12.18 +/- 1.62 11.98 +/- 1.19 Pass SO-6500,1 11/5/2014 Gr. Beta 26.69 +/- 1.62 24.19 +/- 1.13 25.44 +/- 0.99 Pass SO-6500,1 11/5/2014 U-233/4 0.14 +/- 0.04 0.14 +/- 0.05 0.14 +/- 0.03 Pass SO-6500,1 11/5/2014 U-238 0.18 +/- 0.05 0.13 +/- 0.04 0.15 +/- 0.03 Pass SO-6500,1 11/5/2014 Th-228 0.47 +/-0.11 0.34 +/- 0.06 0.41 +/- 0.06 Pass SO-6500,1 11/5/2014 Th-230 0.38 +/- 0.07 0.29 +/- 0.05 0.34 +/- 0.04 Pass SO-6500,1 1115/2014 Th-232 0.41 +/- 0.08 0.41 +/- 0.06 0.41 +/- 0.05 Pass SO-6500,1 11/5/2014 Bi-214 0.75 +/- 0.02 0.78 +/- 0.02 0.77 +/- 0.01 Pass SO-6500,1 11/5/2014 Pb-2.14 0.78 +/- 0.08 0.86 +/- 0.09 0.82 +/- 0.06 Pass SO-6500,1 11/5/2014 Ac-228 1.02 +/- 0.11 1.13 +/- 0.13 1.08 +/- 0.09 Pass SO-6500,1 11/5/2014 Cs-137 0.40 +/- 0.01 0.39 +/- 0.01 0.39 +/- 0.01 Pass DW-50262,3 11/10/2014 Gr. Alpha 8.95 +/- 1.26 7.84 +/- 1.24 8.40 +/- 0.88 Pass DW-50264.5 11/10/2014 Ra-226 3.89 +/- 0.24 3.71 +/- 0.20 3.80 +/- 0.16 Pass DW-50264,5 11/10/2014 Ra-228 2.96 +/- 0.63 2.33 +/- 0.59 2.65 + 0.43 Pass AP-120214A/B 12/2/2014 Gr. Beta 0.03 +/- 0.00 0.03 +/- 0.00 0.03 +/- 0.00 Pass AP-120814A/1B 12/8/2014 Gr. Beta 0.03 +/- 0.01 0.03 +/- 0.01 0.03 +/- 0.00 Pass SG-7068,9 12/19/2014 Pb-214 4.27 +/- 0.23 4.38 +/- 0.33 4.33 + 0.20 Pass SG-7068,9 12/19/2014 Ac-228 2.72 +/- 0.36 3.27 +/- 0.49 3.00 +/- 0.30 Pass S-7152,3 12/25/2014 K-40 20.83 +/- 0.88 20.16 +/- 0.62 20.49 +/- 0.54 Pass A5-5

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

Concentration a Known Control Lab Code b Date Analysis Laboratory result Activity Limits C Acceptance MAW-1 140 2/1/2014 Gr. Alpha 0.77 +/- 0.06 0.85 0.26-1.44 Pass MAW-1140 2/1/2014 Gr. Beta 4.31 +/- 0.08 4.19 2.10 -6.29 Pass MAW-1142 2/1/2014 1-129 -0.01 +/- 8.00 0.00 NA Pass MAW-1184 2/1/2014 Fe-55 0.40 +/- 3.20 0.00 -0.01 -2.00 Pass MAW-i 184 2/1/2014 H-3 345.10 +/- 10.60 321.00 225.00 -417.00 Pass MAW-1 184 2/1/2014 Ni-63 32.40 +/- 3.20 34.00 23.80 - 44.20 Pass MAW-1184 e 2/1/2014 Pu-238 1.28 +/- 0.12 0.83 0.58 - 1.08 Fail MAW- 1184 e 2/1/2014 Pu-239/240 0.91 +/- 0.10 0.68 0.47 - 0.88 Fail MAW-1184 2/1/2014 Sr-90 7.00 +/- 0.70 8.51 5.96-11.06 Pass MAW-1184 2/1/2014 Tc-99 8.10 +/- 0.60 10.30 7.20 - 13.40 Pass MAW-1184 2/1/2014 U-233/234 0.20 +/- 0.07 0.23 0.16 -0.29 Pass MAW-1184 2/1/2014 U-238 1.25 +/- 0.18 1.45 1.02 -1.89 Pass MAW-1184 2/1/2014 Co-57 27.86 +/- 0.38 27.50 19.30 - 35.80 Pass MAW-1 184 2/1/2014 Co-60 15.99 +/- 0.27 16.00 11.20 -20.80 Pass MAW-1184 2/1/2014 Cs-134 21.85 +/- 0.54 23.10 16.20 - 30.00 Pass MAW-1184 2/1/2014 Cs-137 28.74 +/- 0.49 28.90 20.20 - 37.60 Pass MAW-1184 2/1/2014 K-40 1.80 +/- 2.00 0.00 0.00 - 10.00 Pass MAW-1184 2/1/2014 Mn-54 14.06 +/- 0.40 13.90 9.70 - 18.10 Pass MAW-1184 2/1/2014 Zn-65 0.00 +/- 0.19 0.00 -0.01 -0.00 Pass MAVE-1 148 2/1/2014 Co-57 11.63 +/- 0.19 10.10 7.10 - 13.10 Pass MAVE-1 148 2/1/2014 Co-60 7.28 +/- 0.18 6.93 4;85 - 9.01 Pass MAVE-1 148 2/1/2014 Cs-134 6.29 +/- 0.29 6.04 4.23 - 7.85 Pass MAVE-1 148 211/2014 Cs-1 37 5.18 +/- 0.20 4.74 3.32 -6.16 Pass MAVE-1 148 2/1/2014 Mn-54 9.22 +/- 0.26 8.62 6.03 - 11.21 Pass MAVE-1 148 2/1/2014 Zn-65 8.59 +/- 0.40 7.86 5.50 - 10.22 Pass MAAP-1 151 2/1/2014 Am-241 0.09 +/- 0.02 0.09 0.06- 0.12 Pass MAAP-1 151 d 2/1/2014 Co-57 1.60 +/- 0.05 0.00 NA Fail MAAPr1 151 2/1/2014 Co-60 1.38 +/- 0.08 1.39 .0.97 - 1.81 Pass MAAP-1 151 2/1/2014 Cs-I 34 1.75 +/- 0.11 1.91 1.34 - 2.48 Pass MAAP-1151 2/1/2014 Cs-137 1.81 +/- 0.10 1.76 1.23 - 2.29 Pass MAAP-1151 2/1/2014 Mn-54 0.01 +/- 0.03 0.00 NA Pass MAAP-1151 2/1/2014 Pu-238 0.08 +/- 0.02 0.00 NA Fail MAAP-1 151 2/1/2014 Pu-239/240 0.10 +/- 0.02 0.08 0.05 -0.10 Pass MAAP-1 151 2/1/2014 Zn-65 -0.24 +/- 0.09 0.00 -0.50 - 1.00 Pass A6-1

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

Concentration a Known Control Lab Code b Date Analysis Laboratory result Activity Limits': Acceptance MAAP- 1.51 2/1/2014 U-233/234 0.03 + 0.01 0.02 0.01 -0.03 Pass MAAP-1 151 2/1/2014 U-238 0.13 +/- 0.02 0.13 0.09 -0.17 Pass MAAP-1151 2/1/2014 Sr-90 1.11 +/- 0.14 1.18 0.83 - 1.53 Pass MAAP-1 154 2/1/2014 Gr. Alpha 0.56 +/- 0.06 1.77 0.53 - 3.01 Pass MAAP-I 154 2/1/2014 Gr. Beta 0.98 +/- 0.06 0.77 0.39 - 1.16 Pass MASO-1 146 2/1/2014 Co-57 1064.50 t 3.60 966.00 676.00 - 1256.00 Pass MASO-1 146 2/1/2014 Co-60 1.70 +/- 0.50 1.22 NA c Pass MASO-1146' 2/1/2014 Cs-134 6.10 +/- 1.80 0.00 NA Fail MASO-1 146 2/1/2014 Cs-137 1364.30 +/- 5.30 1238.00 867.00 - 1609.00 Pass MASO-1 146 2/1/2014 K-40 728.90 +/- 15.90 622.00 435.00 - 809.00 Pass MASO-1 146 2/1/2014 Mn-54 1588.00 +/- 6.00 1430.00 1001.00 - 1859.00 Pass MASO- 1 46 2/112014 Zn-65 763.50 +/- 6.80 695.00 487.00 - 904.00 Pass MASO-1 146 2/1/2014 Am-241 68.20 +/- 9.00 68.00 47.60 - 88.40 Pass MASO-1 146 2/1/2014 Ni-63 4.80 +/- 15.30 0.00 NA Pass MASO-1 146 ' 2/1/2014 Pu-238 140.60 +/- 15.50 96.00 67.00 - 125.00 Fail MASO-1 146 ' 2/11/2014 Pu-239/240 102.00 +/- 13.10 76.80 53.80 - 99.80 Fail MASO-1 146 2/1/2014 Sr-90 1.23 +/- 1.37 0.00 NA Pass MASO-1 146 2/1/2014 Tc-99 -0.30 +/- 12.00 0.00 NA Pass MASO-1 146 g 2/1/2014 U-233/234 22.90 .+/- 3.00 81.00 57.00 - 105.00 Fail MASO-11469 2/1/2014 U-238 32.00. +/- 3.60 83.00 58.00 - 108.00 Fail MASO-4439 8/1/2014 Am-241 65.90 +/- 6.70 85.50 59.90 - 111.20 Pass MASO-4439 8/1/2014 Ni-63 771.62 +/- 23.29 980.00 686.00 - 1274.00 Pass MASO-4439 8/1/2014 Pu-239/240 55.63 +/- 5.81 58.60 41.00 - 76.20 Pass MASO-4439 8/1/2014 Sr-90 778.34 +/- 17.82 858.00 601,00 - 1115.00 Pass MASO-4439 8/1/2014 Tc-99 458.20 k 9.20 589.00 412.00 - 766.00 Pass MASO-4439 8/1/2014 Cs-134 520.60 +/- 7.09 622.00 435.00 - 809.00 Pass MASO-4439 8/1/2014 Co-57 1135.00 +/- 7.40 1116.00 781.00 - 1451.00 Pass MASO-4439 8/1/2014 Co-60 768.20 +/- 7.70 779.00 545.00 - 1013.00 Pass MASO-4439 8/1/2014 Mn-54 1050.70 +/- 12.60 1009.00 706&00 - 1312.00 Pass MASO-4439 8/1/2014 Zn-65 407.89 +/- 15.03 541.00 379.00 - 703.00 Pass MAW-4431 8/1/2014 Am-241 0.79 +/- 0.08 0.88 0.62 -1.14 Pass MAW-4431 8/1/2014 Cs-1 37 18.62 +/- 0.54 18.40 12.90 - 23.90 Pass MAW-4431 8/1/2014 Co-57 24.85 +/- 0.42 24.70 17.30 - 32.10 Pass MAW-4431 8/1/2014 Co-60 12.27 +/- 0.38 12.40 8.70 - 16.10 Pass MAW-4431 8/1/2014 H-3 207.20 +/- 10.60 208.00 146.00 - 270.00 Pass MAW-4431 h 8/112014 Fe-55 55.10 +/- 14.80 31.50 22.10 - 41.00 Fail MAW-4431 8/1/2014 Mn-54 14.36 +/- 0.53 14.00 9.80 - 18.20 Pass MAW-4431 8/1/2014 Zn-65 11.46 +/- 0.78 10.90 7.60 - 14.20 Pass A6-2

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

Concentration a Known Control Lab Code b Date Analysis Laboratory result Activity Limits ' Acceptance MAW-4431 8/1/2014 Tc-99 6.10 +/- 0.50 6.99 4.89 -9.09 Pass MAW-4431 8/1/2014 Pu-238 0.59 t 0.07 0.62 0.43 -0.80 Pass MAW-4431 8/1/2014 U-233/234 0.22 +/- 0.04 0.21 0.14 -0.27 Pass MAW-4431 8/1/2014 U-238 1.25 +/- 0.10 1.42 0.99 -1.85 Pass MAW-4493 8/1/2014 Gr. Alpha 0.93 +/- 0.07 1.40 0.42 -2.38 Pass MAW-4493 8/1/2014 Gr. Beta 6.31 +/- 1.35 6.50 3.25 -9.75 Pass MAAP-4433 811/2014 Am-241 0.06 +/- 0.02 0.07 0.05 - 0.09 Pass MAAP-4433 8/1/2014 Pu-238 0.10 +/- 0.03 0.11 0.08 -0.14 Pass MAAP-4433 8/1/2014 Pu-239/240 0.04 +/- 0.02 0.05 0.03 -0.06 Pass MAAP-4433 8/1/2014 Sr-90 0.74 +/- 0.10 0.70 0.49 91 Pass MAAP-4433 8/1/2014 U-233/234 0.03 +/- 0.01 0.04 0.03 - 0.05 Pass MAAP-4433 8/11/2014 U-238 0.21 +/- 0.03 0.25 0.18 -0.33 Pass MAAP-4444 8/1/2014 Sr-89 7.82 +/- 0.52 9.40 6.60 - 12.20 Pass MAAP-4444 8/1/2014 Sr-90 0.76 +/- 0.10 0.76 0.53 -0.99 Pass MAVE-4436 8/112014 Cs-134 7.49 +/- 0.18 7.38 5.17 -9.59 Pass MAVF-4436 8/1/2014 Co-57 11.20 +/- 0.19 9.20 6.40-12.00 Pass MAVE-4436 8/1/2014 Co-60 6.84 +/- 0.17 6.11 4.28 -7.94 Pass MAVFS-4436 8/1/2014 Mn-54 8.11 +/- 0.26 7.11 4.97 - 9.23 Pass MAVE-4436 8/11/2014 Zn-65 7.76 +/- 0.43 6.42 4.49 - 8.35 Pass

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

'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.

Iinterference from Eu-152 resulted in misidentification of Co-57.

'The high bias on the plutonium crosscheck samples was traced to contamination from a newly purchased standard.

The results of reanalysis with replacement tracer purchased from NIST:

MAW-1184 Pu-238 0.68 +/- 0.10 Bq / L MAW-1184 Pu-239/240 0.66 +/- 0.10 Bq / L MASO-1146 Pu-238 95.15 +/- 8.98 Bq / kg MASO-1146 Pu-239/240 67.21 +/- 7.54 Bq / kg Insufficient sample remained to reanalyze the Air filter sample(MAAP-1151). High bias results due to same contaminated tracer f Cs-1 34 was positively identified in both library peaks, calculation on the second peak; 2.78 +/- 0.93 Bq/kg.

9 80% of participating laboratories were outside the acceptable range.

Parallel reanalysis was run on ERA spiked sample with acceptable results.

h Result of reanalysis Fe-55 32.63 +/- 16.30 Bq / L A6-3

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

Concentration (pCi/L) b Lab Code b Date Analysis Laboratory ERA Control Result C Result d Limits Acceptance ERVE-1051 3/17/2014 Am-241 1532.0 t 149.5 1490.0 911.0 - 1980.0 Pass ERVE-1051 3/17/2014 Cm-244 519.8 t 94.6 516.0 253.0 - 804.0 Pass ERVE-1051 3/17/2014 Co-60 981.2 +/- 41.8 926.0 639.0 - 1290.0 Pass ERVE-1051 3/17/2014 Cs-134 701.4 +/- 58.6 646.0 415.0 - 839.0 Pass ERVE-1051 3/17/2014 Cs-137 961.9 +/- 46.3 880.0 638.0 - 1220.0 Pass ERVE-1 051 3/17/2014 K-40 32789.7 +/- 758.2 31900.0 23000.0 - 44800.0 Pass ERVE-1051 3/17/2014 Mn-54 < 25.9 0.0 NA Pass ERVE-1051 3/17/2014 Pu-238 2724.1 +/- 259.4 2110.0 1260.0 - 2890.0 Pass ERVE-1051 3/17/2014 Pu-239/240 4361.4 +/- 323.4 3740.0 2300.0 - 5150.0 Pass ERVE-1051 3/17/2014 Sr-90 2405.7 +/- 263.2 2580.0 1470.0 - 3420.0 Pass ERVE-1051 3/17/2014 U-233/234 1612.2 +/- 162.0 1760.0 1160.0 - 2260.0 Pass ERVE-1051 3/17/2014 U-238 1574.3 +/- 159.6 1750.0 1170.0 - 2220.0 Pass ERVE-1051 3/17/2014 Uranium 3255.4 +/- 356.7 3580.0 2430.0 - 4460.0 Pass ERVE-1051 3/17/2014 Zn-65 1124.1 +/- 101.2 919.0 663.0 - 1290.0 Pass ERW-1 054 3/17/2014 Am-241 104.6 +/- 3.4 114.0 76.8 - 153.0 Pass ERW-1054 3/17/2014 Co-60 1195.2 +/- 18.9 1270.0 1100.0 - 1490.0 Pass ERW-1054 3/17/2014 Cs-134 1474.9 +/- 47.5 1660.0 1220.0 - 1910.0 Pass ERW-1054 3/17/2014 Cs-137 2591.0 +/- 23.4 2690.0 2280.0 - 3220.0 Pass ERW-1054 3/17/2014 Mn-54 <4.3 0.0 NA Pass ERW-1054 3/17/2014 Pu-238 54.1 +/- 3.6 44.1 32.6 - 54.9 Pass ERW-1054 3/17/2014 Pu-239/240 185.9 +/- 17.6 160.0 124.0 - 202.0 Pass ERW-1054 3/17/2014 U-233/234 74.8 +/- 6.3 82.4 61.9 - 106.0 Pass ERW-1054 3/17/2014 U-238 76.4 _ 7.8 81.8 62.4 - 100.0 Pass ERW-1054 3/17/2014 Uranium 154.3 +/- 14.6 168.0 123.0 -217.0 Pass ERW-1054 3/17/2014 Zn-65 1818.5 +/- 56.4 1800.0 1500.0 -2270.0 Pass ERW-1055 3/17/2014 Fe-55 636.3 +/- 176.0 1200.0 716.0 - 1630.0 Fail ERW-1055 3/17/2014 Gr. Alpha 120.9 +/- 3.5 133.0 47:2 - 206.0 Pass ERW-1055 3/17/2014 Gr. Beta 141.6 +/- 2.3 174.0 99.6 - 258.0 Pass ERW-1055 3/17/2014 Sr-90 873.9 +/- 56.9 890.0 580.0 - 1180.0 Pass ERW-1 060 3/17/2014 H-3 5818.0 +/- 230.0 5580.0 3740.0 - 7960.0 Pass Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the crosscheck program for proficiency testing administered by Environmental Resources Associates, serving as a replacement for studies conducted previously by the Environmental Measurements Laboratory Quality Assessment Program (EML).

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

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

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

The high bias on the plutonium crosscheck samples was traced to contamination from a newly purchased standard.

The results of reanalysis with replacement tracer purchased from NIST:

ERSO-1050 Pu-238 634.7 +/- 98.50 Bq / kg ERSO-1050 Pu-239/240 451.8 +/- 82.80 Bq / kg f An error in the efficiency calculation was found. The result of recalculation was 932 pCi/L.

The sample was repeated, result of reanalysis. 1066 pCi/L.

A7-2

APPENDIX B DATA REPORTING CONVENTIONS

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

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

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

3.0. Duplicate analyses 3.1 Individual results: For two analysis results; xi +/- Sl and x2 +/- s2 Reported result: x +/- s; where x = (1/2) (xi + x2) and s = 2s2 + 2 3.2. Individual results: <Li , <L2 Reported result: <L, where L = lower of Li and L2 3.3. Individual results: x+s, <L Reported result: x +/- s if x > L; <L otherwise.

4.0. Computation of Averaqes and Standard Deviations B-2

4.1 Averages and standard deviations listed in the tables are computed from all of the individual measurements over the period averaged; for example, an annual standard deviation would not be the average of quarterly standard deviations. The average x and standard deviation s of a set of n numbers x 1 , x2 ... xn are defined as follows:

- 1 yx s y( n-) 2 x=~

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

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

4.6 Composite samples which overlap the next month or year are reported for the month or year in which most of the sample is collected.

B-2

APPENDIX C TECHNICAL SPECIFICATION 2.1.3 REACTOR COOLANT DOSE EQUIVALENT IODINE ABOVE TECHNICAL SPECIFICATION LIMIT C-1

During the 2014 reporting period, radioactivity of primary coolant did not exceed the limits of Technical Specification 2.1.3.

C-2

APPENDIX D SAMPLE LOCATION MAPS D-1

N Q

E K

~76 D-2

Radiological Environmental Sampling Locations and Media Approximate Approximate Air Monitoring Sample Distance Direction Vegetables Station Approximate from Center (degrees Sector TLD Water Milk Sedi-ment Fish and Food Ground-water No. Collection N.from Sites of (degreetrue Sector Products Containment (miles) no,rth) Airborne Particulate Airborne Iodine Onsite Station, 110-meter 1 weather tower 0.53 2930 AWNW P X Onsite Station, adjacent to old plant access 2GE road 0.59 207 0 /SSW K X X X Offsite Station, Intersection of Hwy. 75 and farm access 3 road 0.94 145 0/SE G X Blair OPPD 4 office 2.86 305°/NW Q X X X 5A Fort Calhoun, 6 NE City Hall 5.18 150 0/SSE H X Fence around intake gate, Desoto Wildlife 7 Refuge 2.07 102°/ESE F X Onsite Station, entrance to Plant Site from Hwy.

8 75 0.55 191 0/S J X Onsite Station, 9 NW of Plant 0.68 305 0/NW Q X Onsite Station, 10 WSW of Plant 0.61 2420 /VWSW M X D-3

Radiological Environmental Sampling Locations and Media Approximate Approximate Air Monitoring Sample Distance Direction Vegetables Station Approximate from Center (degrees Sector TLD Water Milk Sedi-ment Fish and Food Products Ground-water N.from Sites true No. Collection of (degree Sector Containment Airborne Airborne (miles) north) Particulate Iodine Offsite Station, 11 SE of Plant 1.07 39 0/SE G X Metropolitan Utilities Dist.,

Florence Treatment Plant North Omaha, 12 NE 14.3 154 0/SSE H X West bank Missouri River, downstream from Plant 13 discharge 0.45 108 0/ESE F X X Upstream from Intake Bldg, west 140 bank of river 0.09 40/N A X X 15 Smith Farm 0 1.99 134 /SE G X 16A 17 A 18A 19A 200 Mohr Dairy 9.86 1860/S j X X 21A Fish Sampling Area, Missouri 0.08 22 River (R.M. 645.0) 6°/N A X Fish Sampling Area, Missouri 17.9 23D River (R.M. 666.0) 358 0 /N A X D-4

Radiological Environmental Sampling Locations and Media Approximate im D ro p C n e Approximate atefr neAp tx im Air Monitoring Sample Distance Direction Vegetables Station Approximate from Center (degrees Sector TLD Water Milk Sedi-ment Fish and Food Ground-water No. from true Products Containment Airborne Airborne (miles) north) Particulate Iodine 24A 25A 26 A 27A Alvin Pechnik 28 Farm 0.94 163 0/SSE H X 29A 30A A

31 Valley 32D Substation #902 19.6 221 /SW L X X X 34 A Onsite Farm 35 Field 0.52 118 0/ESE F X Offsite Station Intersection Hwy 75/Co. Rd.

36 P37 0.75 227 0 /SW L X Offsite Station Desoto 37 Township 1.57 144 0/SE G X X X 3 9A 40A 41G Dowler Acreage 0.73 1750/S J X X X BC D-5

Radiological Environmental Sampling Locations and Media Approximate Approximate Air Monitoring Distance Direction Vegetables S o Cam e Approximate from Center (degrees Sector TLD Water Milk Sedi-ment Fish and Food Ground-water No. from true Products Containment rth) Airborne Airborne (miles) nrh Particulate Iodine 42 Sector A-1 1.94 0°/NORTH A X 0

43 Sector B-1 1.97 16 /NNE B X 0

44 Sector C-1 1.56 41 /NE C X 0

45 Sector D-1 1.34 71 /ENE D X 46 Sector E-1 1.54 90 °/EAST E X 0

47 Sector F-1 0.45 108 /ESE F X 0

48 Sector G-1 1.99 134 /SE G X 0

49 Sector H-1 1.04 159 /SSE H X 50 Sector J-1 0.71 179°/SOUTH J X 0

51 Sector K-1 0.61 205 /SSW K X 0

52 Sector L-1 0.74 229 /SW L X 53 Sector M-1 0.93 248 0/WSW M X 0

54 Sector N-1 1.31 266 /WEST N X 55 Sector P-1 0.60 291 °NVNW P X 0

56 Sector Q-1 0.67 307 /NW Q X 0

57 Sector R-1 2.32 328 /NNW R X 58 Sector A-2 4.54 350°/NORTH A X 0

59 Sector B-2 2.95 26 /NNE B X 60 Sector C-2 3.32 50°/NE C X 0

61 Sector D-2 3.11 75 /ENE D X 0

62 Sector E-2 2.51 90 /EAST E X 0

63 Sector F-2 2.91 11O /ESE F X 0

64 Sector G-2 3.00 140 /SE G X 0

65 Sector H-2 2.58 154 /SSE H X D-6

Radiological Environmental sampling Locations and Media Approximate Approximate Air Monitoring Sample Distance Direction Vegetables Station CApprximate fromoCenter (degrees Sector TLD Water Milk Sedi-ment Fish and Food Ground-water No. Collection ies from true Products Containment Airborne Airborne (miles) north) Particulate Iodine 66 Sector J-2 3.53 181'/SOUTH J X 67 Sector K-2 0 2.52 205 /SSW K X 68 Sector L-2 0 2.77 214 /SW L X 69 Sector M-2 2.86 2430 NVSW M X 70 0 Sector N-2 2.54 263 ANEST N X 71 Sector P-2 0 2.99 299 /WNW P X 72 Sector Q-2 3.37 311 °/NW Q X 73 Sector R-2 0 3.81 328 /NNW R X 74 D. Miller Farm 0 0.65 203 /SSW K X 75; Lomp Acreage 0 0.65 163 /SSE H X X X 8.L X 76 Stangl Farm 3.40 1690/S J X NOTES:

A. Location is either not in use or currently discontinued and is documented in the table for reference only.

B. If milk samples are temporarily not available at a sampling site due to mitigating circumstances, then vegetation (broadleaf, pasture grass, etc.) shall be collected as an alternate sample at the site. If there are no milk producers within the entire 5-mile radius of the plant, then vegetation shall be collected monthly, when available, at two offsite locations having the highest calculated annual average ground level D/Q and a background locale. (Reference Off-Site Dose Calculation Manual, Part II, Table 4 "Highest Potential Exposure Pathways for Estimating Dose")

C. Locations represent highest potential exposure pathways as determined by the biennial Land Use Survey D. Background location (control). All other locations are indicators.

E. Location for monitoring Sector K High Exposure Pathway Resident Receptor for inhalation.

F. When broad leaf (pasture grasses) are being collected in lieu of milk, background broad leaf samples will be collected at a background locale.

D-7

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