ML13121A394

Grand Gulf, Unit 1, 2012 Annual Radiological Environmental Operating Report (AREOR)

ML13121A394
Person / Time
Site:	Grand Gulf
Issue date:	05/01/2013
From:	Robinson C R Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
GNRO-2013/00037
Download: ML13121A394 (65)

Text

GNRO-2013/00037 May 1, 2013 U.S.Nuclear Regulatory Commission Attention:

Document Control Desk Washington, DC 20555-0001 Entergy Operations, Inc.P.O.Box 756 Port Gibson, Mississippi 39150 Tel: 601-437-7326 Christopher R.Robinson Licensing Manager Grand Gulf Nuclear Station

SUBJECT:

Grand Gulf Nuclear Station 2012 Annual Radiological Environmental Operating Report (AREOR)Grand Gulf Nuclear Station, Unit 1 Docket No.50-416\License No.NPF-29

Dear Sir or Madam:

In accordance with Grand Gulf Nuclear Station (GGNS)Unit 1 Technical Specification 5.6.2, attached is the Annual Radiological Environmental Operating Report for the period January 1, 2012 through December 31, 2012.There are no commitments' contained in this submittal.

If you have any questions or need additional information, please contact Tommy Tankersley at 601-437-6936.-_$a_CRR/cjj

Attachment:

2012 Annual Radiological Environmental Operating Report cc: (See Next Page)

GNRO-2013/00037 Page 2 of 2 cc: NRC Senior Resident Inspector Grand Gulf Nuclear Station Port Gibson, MS 39150 u.S.Nuclear Regulatory Commission ATTN: Document Control DesK Washington, DC 20555 u.S.Nuclear Regulatory Commission A TIN: Mr.Alan Wang, NRR/DORL(w/2)

Mail Stop OWFN8B1 Washington, DC 20555-0001 Mr.B.J.Smith Director, Division of Radiological Health Mississippi State Department of Health Division of Radiological Health 3150 Lawson Street Jackson, MS 39213 Dr.Mary Currier, M.D., M.P.H.Mississippi Department of Health P.O.Box 1700 Jackson, MS 39215-1700 Attachment To GNRO-2013/00037 2012 Annual Radiological Environmental Operating Report ENTERGY OPERATIONS, INC.GRAND GULF NUCLEAR STATION ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT January 1, 2012-December 31, 2012 Prepared By Reviewed By TABLE OF CONTENTS

1.0 INTRODUCTION

1.1 Radiological

Environmental Monitoring Program 1.2 Pathways Monitored 1.3 Land Use Census 2.0 INTERPRETATION AND TRENDS OF RESULTS 2.1 Air Particulate and Radioiodine Sample Results 2.2 Thermoluminescent Dosimetry(TLD)

Sample Results 2.3 Water Sample Results 2.4 Sediment Sample Results 2.5 Milk Sample Results 2.6 Fish Sample Results 2.7 Food Product Sample Results 2.8 Land Use Census Results 2.9 Interlaboratory Comparison Results 3.0RADIOLOGICALENVIRONMENTAL MONITORING PROGRAM

SUMMARY

3.1 Program Results Summary 2 6 9 9 9 9 22 22 22 23 24 24 24 24 25 31 32 32 TABLE 1.1 TABLE 1.2 TABLE 2.1 TABLE 3.1 LIST OF TABLES AIR SAMPLING DEVIATIONS IN 2012 RADIOLOGICAL ENVIRONMENTAL SAMPLING PROGRAM LAND USE CENSUS RESULTS RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

3 8 11 26 33 FIGURE 1-1 FIGURE 1-2 FIGURE 1-3 FIGURE 2-1 LIST OF FIGURES EXPOSURE PATHWAYS SAMPLE COLLECTION SITES-NEAR FIELD SAMPLE COLLECTION SITES-FAR FIELD TLD READINGS 4 19 20 21 23 ATTACHMENT 1 LIST OF ATTACHMENTS RADIOLOGICAL MONITORING REPORT

SUMMARY

OF MONITORING RESULTS 5 38 Summary The Annual Radiological Environmental Operating Report presents data obtained through analyses of environmental samples collected for Grand Gulf Nuclear Station's'(GGNS)Radiological Environmental Monitoring Program (REMP)for the period January 1, 2012,'through December 31,2012.This report fulfills the requirements of GGNS Technical Specification 5.6.2.To supplement the REMP, GGNS personnel installed duplicate TLDs and collected duplicate surface water and groundwater samples during th,e reporting period.Radiological Environmental Monitoring Program GGNS established the REMP in 1978 prior to the station becoming operational (1985)to provide data on background radiation and radioactivity normally present in the area.GGNS has continued to monitor the environment by sampling air, water, sediment, fish and food products, as well as measuring radiation directly.GGNS also samples milk, if commercial milk production occurs within five miles of the plant.The REMP includes sampling indicator and control locations within an 18-mile radius of the plant.The REMP utilizes indicator locations near the site to show any increases or buildup of radioactivity that might occur due to station operation and control locations farther away from the site to indicate naturally occurring background radioactivity.

GGNS personnel compare indicator results with control and preoperational results to assess any impact GGNS operation might have on the surrounding environment.

In 2012, GGNS personnel collected environmental samples for radiological analysis.The monitoring results for indicator locations when compared to control locations and previous studies show that GGNS has no significant effect on the local environment.

The review of 2012 monitoring data, in many cases, showed undetectable radiation levels in the environment and near background levels in potential exposure pathways associated with GGNS.Harmful Effects or Irreversible Damage The REMP monitoring did not detect any harmful effects or evidence of irreversible damage in the current year.Reporting Levels When averaged over any calendar quarter, no environmental samples equaled or exceeded reporting levels for radioactivity as outlined in Offsite Dose Calculation Manual (ODCM)Specifications Table 6.12.1-2;the analytical results did not trigger anyRadiologicalMonitoring Program Special Reports.Radioactivity Not Attributable to GGNS Over previous years, the GGNS REMP detected radioactivity attributable to other sources.These sources included the Chinese nuclear test in 1980 and the accident at the Chernobyl Nuclear Power Plant in 1986.In 2011, the GGNS REMP detected radioactivity released from the Fukushima Dai-ichi Nuclear Power Plant following the March 11, 2011, Tohoku earthquake.

In 2012, the GGNS REMP detected no radioactivity attributable to other sources.6 Comparison to Federal and State Programs GGNS personnel compare REMP data to federal and state monitoring programs.Historically, the programs used for comparison included the U.S.Nuclear Regulatory Commission (NRC)Thermoluminescent Dosimeter (TLD)Direct Radiation Monitoring Network and the Mississippi State Department of Health (MSDH), Division of Radiological Health monitoring program.Although the NRC TLD Network Program was discontinued in 1998, these results compared favorably to those from the GGNS REMP.'The MSDH and the GGNS REMP have similar monitoring requirements.

These programs include concurrent air sampling and sharing sample media such as water, sediment, fish and food products.Both programs have obtained similar results.The 2012 results of the MSDH monitoring program compared favorably with the GGNS REMP results.Sample Deviations

• Milk The GGNS aDCM requires collection of milk samples if there is a commercially available source within 5 miles (8 km)of the plant.In 2012, the REMP did not include milk sampling because no commercial milk production occurred within 5 miles of GGNS.GGNS personnel instead collected vegetation samples to monitor the ingestion pathway, as specified in aDCM Specifications Table 6.12.1-1.*Required Lower Limit of Detection (LLD)Values Analytical lower limit of detection (LLD)values achieved in 2012 were within the limits required by the aDCM specifications for all samples required by the program.The analysis of three extra groundwater samples collected from Construction wells 1, 3 and 4 on September 14, 2012 did not meet the 1-131 LLD of 15 pCi/L (Table A 4.1).*Thermoluminescent Dosimeters There were no deviations in 2012.*Air Samples The following air sample locations had reduced run times due to weather-related power outages or mechanical problems.As described in aDCM Specification Table 6.12.1-1, footnote (a), deviations from the required sampling schedule are permitted due to malfunction of sampling equipment and other legitimate reasons.7 Table 1.1 Air Sampling Deviations in 2012 Out-of;'Run Time Service Sample Location Date In Date Out (Hours)(Hours)Comments AS-361VA.6/12/12 6/19/12 165.75 2.05 Power Outage AS-7 UH 6/26/12 7/3/12 167.25 0.78 Power Outage AS-7 UH 7/3/12 7/10/12 167.30 0.78 Power Outage AS-7 UH7/10/127/17/12 167.79 3.46 Power Outage AS-361VA7/10/127/17/12 96.49 71.80 Equipment Malfunction

.AS-7 UH 8/14/12 8/21/12 165.03 2.00 Power Outage AS-7 UH 8/28/12 9/4/12 157.48 13.50 Power Outage AS-1 PG10/16/1210/23/12 49.13 119.72 Equipment Malfunction AS-1 PG 12/4/12 12/11/12 168.18 0.17 Power Outage AS-7 UH12/18/1212/25/12 155.82 5.41 Power Outage AS-7 UH 12/25/12 1/1/13 168.51 0.82 Power Outage Based on the sample collection period reductions, air samples were collected the following percentages of the available time:*Missed Samples AS-1 PG AS-361VA AS-7 UH 98.6%99.2%99.6%All required samples were collected in accordance with REMP requirements.

There were no missed samples.*Unavailable Results GGNS received analytical results in adequate time for inclusion in this report.Program Modifications No REMP modifications took place during this sampling period.Attachments Attachment 1 contains results of TLD, air, water, sediment, fish, food products and special samples collected in 2012.TLDs were analyzed by Environmental Dosimetry Company (EDC)Stanford Dosimetry of Sterling, MA.Other samples were analyzed by the Entergy, River Bend Station (RBS), Environmental Laboratory located in St.Francisville, LA and GEL Laboratories, LLC of Charleston, SC.Attachment 1 also includes RBS results from participation in the interlaboratory comparison program and EDC's and GEL's Annual Quality Assurance Summary.8

1.0 Introduction

1.1 Radiological

Environmental Monitoring Program GGNS established the REMP to ensure that plant operating controls properly function to minimize any radiation that could endanger human health or the environment.

The REMP is designed to:*Analyze important pathways for anticipated types and quantities of radionuclides released into the environment,*Consider the possibility of a buildup of long-lived radionuclides in the environment and identify any physical and biological accumulations that may contribute to human exposures,*Consider the potential radiation exposure to plant and animal life in the environment surrounding GGNS,*Correlate levels of radiation and radioactivity in the environment with radioactive releases from the operation of GGNS.1.2 Pathways Monitored The airborne, direct radiation, waterborne and ingestion pathways, as seen in Figure 1-1 are monitored as required by the GGNS ODCM Table 6.12.1-1.A description of the GGNS REMP utilized to monitor the exposure pathways is provided in Table 1.1 and shown in Figures 1-2 and 1-3.GGNS may supplement this program with additional sampling in order to provide a comprehensive and well-balanced program.Section 2.0 of this report provides a discussion of sampling results, with Section 3.0 providing a summary of results for the monitored exposure pathways.1.3 Land Use Census GGNS personnel conduct a biennial land use census, as required by ODCM Specification 6.12.2.The most recent land use census data are included in Table 2.1.The purpose of this census is to identify land use changes within each of the 16 meteorological sectors and within a 5-mile radius of GGNS that would require modifications to the REMP or the ODCM.The most purpose of the census is to identify the nearest1)2)3)Occupied and unoccupied residences 2 2 Garden of greater than 50 square meters (m)[500 square feet (ft)]producing broadleaf vegetation Animal milked for human consumption 9

GGNS personnel conduct the land use census by:*Conducting field surveys in each meteorological sector out to five miles in order to confirm:*Nearest occupied residence*Nearest unoccupied residence*Nearest garden and approximate size*Nearest milking animal*Identifying locations on maps and aerial photographs, measuring distances to GGNS and recording results on surveillance data sheets,*Comparing current land use census results to previous results from the 2010 census, and*Contacting the Claiborne County Agent for verification of nearest dairy animals No significant differences were observed between the biennial land use census performed in 2010 andone performed in 2012.10 Table 1.2 Radiological Environmental Sampling Program Exposure Sample Point Description, Sampling and Type and Frequency Pathway Reauirement Distance and Direction Collection Frequency Of Analvses Radioiodine and Particulates 1 sample close to the SITE AS-7 UH (Sector H, Radius 0.5 BOUNDARY having the highest Miles)-South-southeast of GGNS calculated annual average at the IBEW Union Hall.ground level 0/0.Radioiodine Canister-1-Continuous sampler 131;7 days Radioiodine and Particulates operation with sample Particulate Sampler-Airborne 1 sample from the vicinity of a AS-1 PG (Sector G, Radius 5.5 collection per 7 days or as Gross beta radioactivity community having the highest Miles)-Southeast of GGNS at the required by dust loading, following filter change, calculated annual average-Port Gibson City Barn.whichever is more composite (by location)ground level 0/0.frequent for gamma isotopic;92 days Radioiodine and Particulates AS-3 61VA (Sector B, Radius 18 1 sample from a control location Miles)-North-northeast of GGNS 15 km (10-20 miles)on Hwy'61, North of the Vicksburg distance.Airport.TLDs M-16 (Sector A, Radius 0.9 Miles)-Meteorological Tower.An inner ring of stations in the Direct general areas of the SITE M-19 (Sector E, Radius 0.5 Miles)92 days Gamma dose;92 days Radiation BOUNDARY.-Eastern SITE BOUNDARY Property line, North-northeast of HWSA.11 Table 1.1 Radiological Environmental Sampling Program Exposure Sample Point Description, Sampling and Type and Frequency Pathway Requirement Distance and Direction Collection Frequency Of Analyses M-21 (Sector J, Radius 0.4 Miles)-Near Former Training Center Building on Bald Hill Road.M-22 (Sector G, Radius 0.5 Miles)-Former RR Entrance Crossing On Bald Hill Road.TLDs M-23 (Sector Q, Radius 0.5 Miles)-Direct An inner ring of stations in the Gin Lake Road 50 Yards North of Radiation general areas of the SITE Heavy Haul Road on Power Pole.92 days Gamma dose;92 days BOUNDARY.M-25 (Sector N, Radius 1.6 Miles)-Radial Well Number 1.M-28 (Sector L, Radius 0.9 Miles)-Bald Hill Road.M-94 (Sector R, Radius 0.8 Miles)-Sector R Near Meteorological Tower.12 Table 1.1 Radiological Environmental Sampling Program Sampling and Exposure Sample Point Description, Collection Type and Frequency Pathway Requirement Distance and Direction Frequency*

Of Analyses M-95 (Sector F, Radius 0.5 mil-Spoils Area, fence of old storage area, near entrance gate M-96 (Sector B, Radius 0.7 mi.)-North Gate Fence TLOs M-97 (Sector 0, Radius 0.8 mi.)-Grand Direct An inner ring of stations in the Gulf Road entrance gate to spoils area Radiation general areas of the SITE M-98 (Sector H, Radius 0.5 mi.)-Bald 92 days Gamma dose;92 days BOUNDARY.Hill Road, across from Union Hall, in curve M-99 (Sector K, Radius 0.4 mi.)-North Fence of old Ball Field near utility pole M-100 (Sector C, Radius 0.6 mi.)-Grand Gulf Road TLOs M-36 (Sector P, Radius 5.0 Miles)-An outer ring approximately 3 to Curve on HW 608, Point Nearest GGNS 5 miles from the site.at Power Pole.M-40 (Sector M, Radius 2.3 Miles)-Headly Drive, Near River Port Entrance.13 Table 1.1 Radiological Environmental-Sampling Program Exposure Sample.Point Description, Sampling and Type and Frequency Pathway Requirement Distance and Direction Collection Frequency Of Analvses TLDs M-48 (Sector K, Radius 4.8 Miles)-An outer ring approximately 3 0.4 Miles South on Mont Gomer Road to 5 miles from the site.on West Side.M-49 (Sector H, Radius 4.5 Miles)-Fork in Bessie Weathers Road/Shaifer Road.M-50 (Sector B, Radius 5.3 Miles)-Panola Hunting Club Entrance.M-55 (Sector D, Radius 5.0 Miles)-Near Ingelside Karnac Ferry Road/Ashland Road Intersection.

M-57 (Sector F, Radius 4.5 Miles)-Direct Hwy 61, Behind the Welcome to Port Radiation Gibson Sign at Glensdale Subdivision.

92 days Gamma dose;92 days TLDs M-01 (Sector E, Radius 3.5 Miles)-8 stations in special interest Across the road from Lake Claiborne areas such as population Entry Gate.

Interest)centers, nearby residences, M-07 (Sector G, Radius 5.5 Miles)-schools, and.in 1 or 2 areas to AS-1 PG,Port Gibson City Barn.serve as control stations.(Special Interest)M-09 (Sector D, Radius 3.5 Miles)-Warner Tully V-Camp.(Special Interest)M-10 (Sector A, Radius 1.5 Miles)-Grand Gulf Military Park.(Special Interest)14 Table 1.1 Radiological Environmental Sampling Program Exposure Sample Point Description, Sampling and Type and Frequency Pathway Requirement Distance and Direction Collection Frequency Of Analyses M-14 (Sector B, Radius 18.0 Miles).-AS-3-61 VA, Hwy 61, North of Vicksburg Airport.(Control)TLDs M-33 (Sector P, Radius 12.5 Miles)-Newellton, Louisiana Water Tower.8 stations in special interest (Special Interest)Direct areas such as population M-38 (Sector M, Radius 9.5 Miles)-92 days Gamma dose;92 days Radiation centers, nearby residences, Lake Bruin State Park, Entrance schools, and in 1 or 2 areas to Road.(Special Interest)serve as control stations M-39 (Sector M, Radius 13.0 Miles)-St.Joseph, Louisiana, Auxiliary Water Tank.(Special Interest)15 Table 1.1 Radiological Environmental Sampling Program Sampling and Exposure Sample Point Description, Type and Frequency Pathway Requirement Distance and Direction FreQuency Of Analyses Surface Water MRUP (Sector R, Radius 1.8 Miles)-At 92 days Gamma isotopic and 1 sample upstream.least 4500 ft upstream of the GGNStritiumanalyses; 92 discharge point into the Mississippi River to days 1 sample downstream.

allow adequate mixing of the Mississippi and Big Black Rivers.MRDOWN (Sector N, Radius 1.6 Miles)-At least 5000 ft downstream of the GGNS discharge point in the Mississippi River near Radial Well NO.1.Waterborne 1 sample downstream during a MRDOWN (Sector P, Radius 1.3 Miles)-366 days Gamma isotopic and Liquid Radwaste Discharge.

Downstream of the GGNS discharge point in tritium analyses;366 the Mississippi River near Radial Well NO.5.days 1 sample from Outfall 007 OUTFALL 007 (Sector N, Radius 0.2 31 days Tritium;31 days Miles)-Storm Drain System 16 Table 1.1 Radiological Environmental Sampling Program Exposure Sample Point Description, Sampling and Type and Frequency Pathway Requirement Distance and*Direction Collection Frequency Of Analyses PGWELL (Sector G, Radius 5.0 Miles)-Port Gibson Wells-Taken from distribution system or one of the Groundwater five wells.Waterborne Samples from 2 sources.CONSTWELL (Sector Q, Radius 366 days Gamma isotopic and tritium analyses;366 days 0.4 Miles)-GGNS Construction Water Well-Taken from distribution system or the well.SEDHAM (Sector N, Radius 1.6 Sediment From Shoreline Miles)-Downstream of the GGNS 1 sample from downstream discharge point in the Mississippi area.River near Hamilton Lake outlet.1 sample from upstream area.SEDCONT (Minimum of 100 yds)-366 days Gamma isotopic;366 days Upstream of the GGNS discharge point in the Mississippi River.Milk 1 sample from milking Currently, no available milking animals within 8 km (5 miles)animals within 8 km of GGNS.if milk is available Ingestion commercially.

ALCONT{Sector K, Radius 10.5 92 days when required Gamma isotopic and 1-131;1control sample (only if Miles)-Located South-southwest of 92 days indicator exists)>8 km if milk GGNS at Alcorn State University.

is available.

17 Table 1.1 Radiological Environmental Sampling Program Exposure Sample Point Description, Sampling and Type and Frequency Pathway Requirement Distance and Direction Collection Frequency Of Analyses FISHDOWN-Downstream of the Fish GGNS discharge point into the 1 sample in vicinity of GGNS Mississippi River discharge point.FISH UP-Upstream of the GGNS 366 days Gamma isotopic on edible 1 sample uninfluenced by discharge point into the Mississippi portion;366 days GGNS discharge.

River uninfluenced by plant operations.

Food Products Ingestion 1 sample of broadleaf VEG-J (Sector J, Radius 0.4 Miles)vegetation grown in one of two-South of GGNS near former different offsite locations with Training Center on Bald Hill Road.highest anticipated annual VEG-CONT (Sector K, Radius 10.5 Gamma isotopic and 1-131;average ground level D/Q if Miles)-Alcorn State University 92 days when available milk sampling is not performed.

south-southwest of GGNS when 92 days 1 sample of similar vegetation available, otherwise a location 15-30 grown 15-30 km distant if milk km distant.sampling is not performed.

18 FIGURE 1-1 Exposure Pathways---=----

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2.0 Interpretation

and Trends of Results 2.1 Air Particulate and Radioiodine Sample Results GGNS did not detect any plant related gamma emitting radionuclides in the quarterly air particulate composites.

The REMP had previously detected airborne radioactivity attributable to other sources in this pathway.These sources include the Chinese nuclear test in 1980 and the accident at the Chernobyl Nuclear Power Plant in 1986.In 2011, the GGNS REMP detected radioactivity released from the Fukushima Dai-ichi Nuclear Power Plant following the March 11, 2011, Tohoku earthquake No radioiodine was detected in 2012.Table 3.1, which also includes gross beta activity, provides a comparison of the indicator and control means and ranges, further emphasizing that the airborne pathway remains at background levels.In the absence of plant-related gamma radionuclides, gross beta activity is attributed to naturally occurring radionuclides.

Similar trends are for control and indicator locations, which support the presence of naturally occurdng radioactivity.

2.2 Thermoluminescent

Dosimetry Sample Results GGNS calculates dose by subtracting shield readings from control and indicator location readings and reports measured dose as net exposure, normalized to 92 days.GGNS relies on the comparison of the indicator locations tothecontrol location as an indication of plant impact.Gamma radiation dose.in the reporting period is compared to control location readings for previous years as shown in Figure 2-1.The comparison of the indicator results to the control, and to previous indicator results, as seen in Figure 2-1 and Table 3.1, indicates that plant operation has had no significant impact on ambient radiation levels during the reporting period.In previous years, TLD locations M-21 (Sector J, 0.4 miles), M-98 (Sector H, 0.5 mi.les and M-99 (Sector K, 0.4 miles)were above background.

The dose rates at these three locations were the result of Nitrogen-16 (N-16)associated with the injection of hydrogen and subsequent N-16 production.

Hydrogen injection into the feedwater system provides protection against Intergranular Stress Corrosion of plant components.

Since November 2010, the hydrogen injection rate has been reduced and the dose rates at TLD locations M-21, M-98 and M-99 have returned to near background levels.22 Figure 2-1 2012 TLD Readings mRlqtr 20.0AA 16.012.00-..----g--------6 0 o x 2007-2011 Control Location (-2 Stdev)2007-2011 Control Location (+2 Stdev)***...*---.--.--...'n-li---.-x C5 6*.***0 g*0 0-..-..-.-..-***o***0**0-.------_..-..*8.0**4.0*------------

---

---

I.Qtr1,2012 o Qtr2,2012 6 Qtr3,2012 xQtr4,2012!

0.0 2.3 Water Sample Results Surface water samples were collected from three indicator locations (Outfall 007, MRDOWN, and MRDOWN During Discharge) and one control location (MRUP)and analyzed for gamma emitting radionuclides and tritium.Plant related gamma emitting radionuclides and tritium remained undetectable in the upstream and downstream Mississippi River locations, which is consistent with preoperational and previous operational years.Storm waters contribute to Outfall 007 and can include tritium as a result of washout and entrainment of normal, previously monitored gaseous effluents.

As a result, tritium is occasionally observed.In 2012, when detected, tritium was measured at an average concentration of 817+/-247 pCilL in the Outfall 007 (indicator) location.In addition to the tritium samples required by the REMP,fivespecial surface water samples for gamma emitting radionuclides were collected at the Outfall 007'location Table A 8.1).Plant related gamma emitting radionuclides remained undetectable in these samples.Based on review of results and historical data, plant operations had no significant impact on this pathway during the reporting period.23 Groundwater samples were collected from two locations (indicator and control)and analyzed for gamma emitting.radionuclides and tritium (Tables A 4.2 and A 4.3).In addition to the samples from the indicator and control locations, fourteen (14)extra samples were analyzed for gamma emitting radionuclides and tritium (Tables A 4.1 and A 4.2)GGNS did not detect any plant related gamma emitting radionuclides or tritium in groundwater samples during the reporting period.Based on review of results and historical data, plant operations had no significant impact on this pathway during the reporting period.2.4 Sediment Sample Results Sediment samples were collected from two locations (indicator and control)and analyzed for gamma emitting radionuclides.

In 2012, plant related gamma emitting radionuclides were below detectable concentrations in the upstream (control)location.Cesium-137 was detected near the minimum detection level at an average concentration of pCi/kg in the downstream (indicator) location.A review of REMP data collected at the downstream location from 1983 through 2011 indicates theCesium-137 concentration has ranged from less than detectable to 300 pCi/Kg.Cesium-137 has previously been detected in the upstream (control)location.The presence of Cesium-137 is attributed to atmospheric weapons testing.Based on review of results and historical data, plant operations had no significant impact on this pathway during the reporting period.2.5 Milk Sample Results Milk samples were not collected within five miles of the site in the reporting period due to the absence of milking animals.Since there are no dairies within five miles of GGNS, and based on non-detectable radioiodine and gamma radionuclides in air and vegetation samples, plant operations had no impact on this pathway duringthereporting period.2.6 Fish Sample Results Fish samples were collected from two locations (indicator and control)and analyzed for gamma emitting radionuclides.

GGNS did not detect any plant related gamma emitting radionuclides in fish samples (edible portions)during the reporting period, as has been the case in preoperational and previous operational years.These results indicate that this pathway has not been affected by plant operations.

2.7 Food Product (Vegetation)

Sample Results Food product samples were collected from control and indicator locations and analyzed for lodine-131 and gamma emitting radionuclides.

GGNS did not detect any plant.related lodine-131 or gamma emitting radionuclides in vegetation samples during the reporting period.These results indicate that this pathway has not been affected by plant operations.

24 2.8 Land Use Census Results Results from the Land Use Census performed in 2012-13 are included in this report.Methods utilized to perform the Land Use Census include: visual surveys, door to door surveys, telephone interviews, Global Positioning System (GPS), Aerial Photography, and consultation with the local county agent concerning dairy production in Claiborne County.During the survey the following information was obtained: 1)nearest location of occupied and unoccupied residences 2)nearest location of dairy production 3)nearest location of gardens Changes from the previous Land Use Census were evaluated in accordance with GGNS surveillance"Land Use Census", 06-EN-SOOO-0":0002.

The differences were compared to the locations and assumptions used in calculations for compliance with the ODCM Limiting Condition for Operation 6.11.6.The locations and assumptions currently used in ODCM were determined more conservative than any of the changes.Determinations from the most recent Land Use Census results are:*Because of downwind location and/or distance from the site, in no case will the occupancy of an existing unoccupied residence cause any existing ODCM critical receptor calculation results to be less conservative.

• No additional sampling locations are required as the onsite vegetation sampling location (Sector J, 0.4 miles)is more conservative than changes identified in the land use census.*Cattle are raised for human consumption (most notably in Sector H, J, and K).,GGNS uses the Grass/Cow/Meat pathway.*The milk pathway does not need to be activated because no commercial dairy production is occurring within 5 miles, as referenced by ODCM Table 6.12.1-1.*Sectors M,N, P, and Q are remote areas in which the primary use is hunting.Areas were surveyed by vehicle and aerial photographs.

• Gardens, regardless of size, were included in the census data 25 Table 2.1 2012 Land Use Census Parameter Sector A*Sector B Sector C Sector 0*I.Nearest Occupied a.Distance (mile)1.02 1.51 0.70 2.60 Residence b.Degrees from true north 355.4 23.7 42.3 60.8 II.Nearest Unoccupied a.Distance (mile)0.94 0.83 None None Residence (closer b.Degrees from true north 8.0 15.1 than occupied residence)

III.Nearest Milk Animal a.Distance None NoneNoneNone IV.Nearest Broadleaf a.Distance (mile)None 1.52 0.69 2 3.8 Garden b.Garden size (ft2).1250800 c.Degrees from true north 21.9 43.6 76.0 V.Census Comparison

.a.Is nearest occupied Yes'Yes Yes Yes residence in same location as last census?b.Is nearest milk animal in N/A N/A N/A N/A same location as last census?c.Is nearest broad leaf No Yes 1 Yes No garden in same location as last census?1-Retained previous garden location.Located no other gardens in Sector B.2-Currently not planted.Retained due to potential to plant.Next nearest garden@4.53 mi, 49 degrees:::::200 fF*-Change from last census.See table of Land Use Census Changes 26 Table 2.1.2012 Land Use Census continued.

Parameter Sector E Sector F*Sector G*Sector H I.Nearest Occupied a.Distance(miles) 0.86 2.25 3.71 1.10 Residence b.Degrees from true north 93.9 101.3 131.8 151.4 II.Nearest Unoccupied a.Distance (miles)None None 2.10 1.07 Residence (closer b.Degrees from true north 129.2 151.0 than occupied residence)

III.Nearest Milk Animal a.Distance None None None None IV.Nearest Broadleaf a.Distance (miles)0.89 4.81 3.39 4.39 Garden b.Garden size (ft2) c.Degrees from true north 86.9 122 129 155 V.Census Comparison a.Is nearest occupied Yes Yes No Yes residence in same location as last census?b.Is nearest milk animal in N/A N/A N/A N/A same location as last census?c.Is nearest broadleaf Yes No Yes Yes garden in same location as last census?1-Fields plowed, not planted.Next nearest garden 4.93 miles, 128 degrees,-500 fe*-Change from last census.See table of Land Use Census Changes 27 Table 2.1.2012 Land Use Census continued.

Parameter Sector J Sector K Sector L Sector M I.Nearest Occupied a.Distance (miles)3.14 2.20 0.89 None Residence b.Degrees from true 174.2 197.0 219.7 north II.Nearest Unoccupied a.Distance (miles)None 1.70 None None Residence{closer b.Degrees from true 203.3 than occupied north (Hunting residence)

Lodge-Info Only)III.Nearest Milk Animal a.Distance (miles)None None None None IV.Nearest Broadleaf a.Distance (miles)3.16 2.18 0.89 None Garden b.Garden size (ft2)50050 c.Degrees from true north 174.0 196.3 219.5 V.Census Comparison a.Is nearest occupied Yes Yes Yes N/A residence in same location as last census?N/A N/A N/A N/A b.Is nearest milk animal in same location as last Yes Yes Yes N/A census?c.Is nearest broad leaf garden in same location as last census?28 Table 2.1.2012 Land Use Census continued.

Parameter Sector N Sector P Sector Q Sector R I.Nearest Occupied a.Distance (miles)None None None 1.11 Residence b.Degrees from true north 346.1 II.Nearest Unoccupied a.Distance (miles)1.58 None None None Residence (closer b.Degrees from true north 82.2 than occupied (Bucksnort residence)

Camp-Info Only)III.Nearest Milk Animal a.Distance (miles)None None None None IV.Nearest Broadleaf a.Distance (miles)None None None None Garden b.Garden size (ft2)c.Degrees from true north V.Census Comparison a.Is nearest occupied N/A N/A N/A Yes residence in same location as last census?b.Is nearest milk animal in N/A N/A N/A N/A same location as last census?c.Is nearest broadleaf N/A N/A N/A N/A garden in same location as last census?29 2012 Land Use Census Changes SECTOR PARAMETER Reason for Change A Nearest Broadleaf Garden No garden.at 2010 census location.No other gardens in Sector A.D Nearest Broadleaf Garden No garden at 2010 census location.New garden location identified.

F Nearest Broadleaf Garden No garden at 2010 census location.New garden location identified.

G Nearest Broadleaf Garden Fields plowed, not planted.Next nearest garden 4.93 miles, 128 degrees,-500 fe 30 2.9InterlaboratoryComparison Results The Entergy, River Bend Station (RBS)Environmental Laboratory analyzed interlaboratory comparison samples to fulfill the requirements of the aDCM Specifications 6.12.1.The results are shown in Table A 9.1.The comparison showed acceptable results between RBS and the test laboratory for all media and isotopes, except for 1-131 in milk.It was concluded that this was an anomalous value after an acceptable follow-up analysis, a review of test procedures and a review of quality control data for the associated equipment identified no quality problems.No REMP milk samples were required by the GGNSREMP in 2012.Environmental Dosimetry Company analyzed interlaboratory comparison Thermoluminescent Dosimeters.

Results showed that 1000/0 of the measurements passed precision and bias criteria (Table A 9.2).The results of GEL Laboratories annual QA Review, which included interlaboratory comparisons, were acceptable and are summarized in Table A 9.3.31

3.0 Radiological

Environmental Monitoring Program Summary 3.1 Program Results Summary Table-3.1 summarizes the REMP results.Values reported as less than the lower limit of detection<<LLD)were not used when determining ranges and means for indicator and control locations.

32 TABLE 3.1 Radiological Environmental Monitoring Program Summary Name of Facility: Grand Gulf Nuclear Station Docket No: 50-416 Location of Facility: Claiborne County.Mississippi Reporting Period: January-December 2012 Sample Type Type&Number LLD b Indicator Locations Location with Highest Annual Mean Control Number of (Units)of Analyses a Mean (F)c Locations Nonroutine

[Range]Mean (F)c Results e[Range]Location d Mean (F)c[Range]Air Particulates GB 156 0.01 0.028 (104/104)AS-1 PG 0.028 (52/52)0.027 (52/52)0 (pCi/m 3)[0.010-0.055](Sector G, 5.5 mi)[0.010-0.050][0.013-0.051]GS 12 Cs-134 0.05<LLD N/A N/A<LLD 0 Cs-137 0.06<LLD N/A N/A<LLD 0 Airborne Iodine 1-131 156 0.07<LLD N/A N/A<LLD 0 (pCilm 3)-Inner Ring TLDs Gamma 56 f 9.5 (56/56)M-99 12.0 (4/4)N/A 0 (mRlQtr)[4.8-13.6](Sector J, 0.4 mi.)[9.9-13.6]Outer Ring TLDs Gamma 28 f 9.7 (28/28)M-57 11.5 (4/4)N/A 0 (mRlQtr)[4.4-13.0](Sector F, 4.5 mi.)[9.3-13.0]Special Interest Gamma 28 f 9.6 (28/28)M-01 11.4 (4/4)N/A 0 TLDs[6.5-12.5](Sector E, 3.5 mi.)[9.012.5](mRlQtr)Control TLDs Gamma 4 f N/A N/A N/A 11.0(4/4)0 (mRlQtr)[9.012.0]33 TABLE 3.1 Radiological Environmental Monitoring Program Summary Name of Facility: Grand Gulf Nuclear Station Docket No: 50-416 Location of Facility: Claiborne County.Mississippi Reporting Period: January-December 2012 Sample Type Type&Number LLD b Indicator Location Location with Highest Annual Mean Control Number of (Units)of Analyses a Mean(F)c Locations Nonroutine

[Range]Mean (F)c Results e[Range]Location d Mean (F)c[Range]Surface Water H-3 26 3000 817 (2/22)Outfall 007 817 (2/12)<LLD 0 (pCi/1)[529-1104](Sector N, Radius 0.2 mi.)[529-1104]GS 12 1-131 15<LLD N/A N/A<LLD 0 Mn-54 15<LLD N/A N/A<LLD 0 Fe-59 30<LLD N/A N/A<LLD 0 Co-58 15<LLD N/A N/A<LLD 0 Co-60 15<LLD N/A N/A<LLD 0 Zn-65 30<LLD N/A N/A<LLD 0 Zr-95 30<LLD N/A N/A<LLD 0 Nb-95 15<LLD N/A N/A<LLD 0 Cs-134 15<LLD N/A N/A<LLD 0 Cs-137 18<LLD N/A N/A<LLD 0 8a-140 60<LLD N/A N/A<LLD 0 La-140 15<LLD N/A N/A<LLD 0 34 TABLE 3.1 Radiological Environmental Monitoring Program Summary Name of Facility: Grand Gulf Nuclear Station Docket No: 50-416 Location of Facility: Claiborne County.Mississippi Reporting Period: January-December 2012 Sample Type Type&LLD b Indicator Locations Location with Highest Annual Mean Control Locations Number of (Units)Number Mean (F)c Mean (F)c Nonroutine of Analyses a[Range][Range].Results e Location d Mean (F)c[Range]Groundwater H-3 16 2000<LLD N/A N/A<LLD 0 (pCi/1)1-13121<LLD N/A N/A<LLD 0 GS 16 Mn-54 15<LLD N/A N/A<LLD 0 Fe-59 30<LLD N/A N/A<LLD 0 Co-58 15<LLD N/A N/A<LLD 0 Co-60 15<LLD N/A N/A<LLD 0 Zn-65 30<LLD N/A N/A<LLD 0 Zr-95 30<LLD N/A N/A'<LLD 0 Nb-95 15<LLD N/A" N/A<LLD 0 Cs-134 15<LLD N/A N/A<LLD 0 Cs-137 18<LLD N/A N/A<LLD 0 Ba-140 60<LLD N/A N/A<LLD" 0 La-140 15<LLD N/A N/A<LLD 0 Sediment GS 2 (pCi/kg)Cs-134 150<LLD N/A N/A<LLD 0 Cs-137 180 38.8 (2/2)SEDHAM 38.8 (2/2)<LLD 0[37.30-40.30](Sector N, 1.6 Miles)[37.30-40.30]

35 TABLE 3.1 Radiological Environmental Monitoring Program Summary Name of Facility: Grand Gulf Nuclear Station Docket No: 50-416 Location of Facility: Claiborne County, Mississippi Reporting Period: January-December 2012 Sample Type Type&LLD b IndicatorLocationLocation with Highest Annual Control Number of (Units)Number Mean (F)c Mean Locations Nonroutine of Analyses a[Range]Mean (F)c Results e[Range]Location d Mean (F)c[Range]Fish GS 2 (pCi/kg)Mn-54 130<LLD N/A N/A<LLD 0 Fe-59 260<LLD N/A N/A<LLD 0 Co-58 130<LLD N/A N/A<LLD 0 Co-60 130<LLD N/A N/A<LLD 0 Zn-65 260<LLD N/A N/A<LLD 0 Cs-134 130<LLD N/A N/A<LLD 0 Cs-137 150<LLD N/A N/A<LLD 0 Food 1-131 8 60<LLD N/A N/A<LLD 0 ProductsNegetation (pCi/kg)GS 8 Cs-134 60<LLD N/A N/A<LLD 0 Cs-137 80<LLD N/A N/A<LLD 0 36 TABLE 3.1 Radiological Environmental Monitoring Program Summary Name of Facility: Grand Gulf Nuclear Station Docket No: 50-416 Location of Facility: Claiborne County.Mississippi Reporting Period: January-December 2012 Location with Highest Annual Mean Control Indicator Location Locations Number of Sample Type Type&Number Mean (F)c Mean (F)c Mean (F)c Nonroutine (Units)of Analyses a LLD b[Range]Location d[Range][Range]Results e Surface Water GS 5 (Special)1-131 15<LLD N/A N/A<LLD 0 (pCi/1)Mn-54 15<LLD N/A N/A-<LLD 0 Fe-59 30<LLD N/A N/A<LLD 0 Co-58 15<LLD N/A N/A<LLD 0 Co-60 15<LLD N/A N/A<LLD 0 Zn-65 30<LLD N/A N/A<LLD 0 Zr-95 30<LLD N/A N/A<LLD 0 Nb-95 15<LLD N/A N/A<LLD 0 Cs-134 15<LLD N/A N/A<LLD 0 Cs-137 18<LLD N/A N/A<LLD 0 Ba-140 60<LLD N/A N/A<LLD 0 La-140 15<LLD N/A N/A<LLD 0 a GB=Gross beta;1-131=lodine-131; H-3=Tritium;GS=Gamma scan.b-LLD=Required lower limit of detection based on aDCM Table 6.12.1-3.c Mean and range based upon detectable measurements only.Fraction of detectable measurements at specified locations is indicated in parenthesis (F).d Where applicable, locations are specified by name, distance from reactor site and meteorological sector.e Non-routine results are those which exceed ten times the control station value.If no control station value is available, the result is considered non-routine if it exceeds ten times the preoperational value for the location.f LLD is not defined in aDCM Table 6.12.1-3.37 Attachment 1 Radiological Monitoring Summary of Monitoring Results 38 TABLE OF CONTENTS TABLE A1.1 AIR PARTICULATE FILTER GROSS BETA AND 40 CHARCOAL CARTRIDGE AS-1 PG TABLE A 1.2 AIR PARTICULATE FILTER AND RADIOIODINE CARTRIDGE AS-3 61VA 42 TABLE A 1.3 AIR PARTICULATE FIL TER AND RADIOIODINE CARTRIDGE AS-7 44 TABLE A 1.4 AIR PARTICULATE FILTER GAMMA 46 TABLEA2.1 THERMOLUMINESCENT DOSIMETERS 47 TABLE A2.2 THERMOLUMINESCENT DOSIMETERS 48 TABLE A2.3 THERMOLUMINESCENT DOSIMETERS 48 TABLE A3.1 SURFACE WATER GAMMA 49 TABLEA3.2 SURFACE WATER TRITIUM 50 TABLE A4.1 GROUNDWATER GAMMA 51 TABLEA4.2 GROUNDWATER TRITIUM 52 TABLE A4.3 GROUNDWATER IODINE-131 53 TABLEA5.1 SEDIMENT 54 TABLE A6.1 MEAT 55 TABLE A 7.1 FOOD PRODUCTS 56 TABLEA8.1 SPECIAL SAMPLES 57 TABLE A9.1 INTERLABORATORY COMPARISON 58 TABLEA9.2 PERCENTAGE OF DOSIMERS THAT PASSED INTERNAL BIAS AND PRECISION DATA JANUARY-DECEMBER 2012 62 TABLEA9.3 GEL LABORATORIES LLC INTRA-LABORATORY QA DATA SUMMARIES 62 39 Table A1.1 Sample Type: Air Particulate Filter and Radioiodine Cartridge Analysis: Gross Beta and 1-131 Units: pCi/m 3 AIR SAMPLE AS-1 PG-Nearest Community LLD (pCi/m A 3)0.07 0.01 LAB 10 START DATE END DATE 1-131 GROSS BETA 20120013 12/27/2011 113/2012<0.016 0.034+1-0.0011 20120039 1/3/2012 1/10/2012<0.015 0.024+1-0.0009 20120062 1/10/2012 1/17/2012<0.021 0.022+1-0.0009 20120108 1/17/2012 1/24/2012<0.019 0.032+1-0.0010 20120125 1/24/2012 1/31/20.12

<0.022 0.018+1-0.0008 20120162 1/31/2012 2/712012<0.024 0.017+1-0.0008 20120228 2/7/2012 2/14/2012<0.018 0.030+1-0.0010 20120269 2/14/2012 2/21/2012<0.022 0.025+1-0.0009 20120304 2/21/2012 2/28/2012<0.026 0.022+1-0.0009 20120344 2/28/2012 3/612012<0.019 0.017+1-0.0008 20120365 3/6/2012 3/13/2012<0.021 0.019+1-0.0012 20120391 3/13/2012 3/20/2012<0.014 0.015+1-0.0008 20120415 3/20/2012 3/27/2012<0.018 0.020+1-0.0009 20120445 3/27/2012 4/312012<0.023 0.026+1-0.0009 20120458 4/3/2012 4/11/2012.<0.018 0.024+1-0.0009 20120504 4/11/2012 4/17/2012<0.020 0.037+1-0.0012 20120554 4/17/2012 4/24/2012<0.016 0.022+1-0.0009 20120603 4/24/2012 5/112012<0.017 0.027+1-0.0010 20120648 5/1/2012 5/8/2012<0.018 0.014+1-0.0008 20120684 5/8/2012 5/15/2012<0.016 0.033+1-0.0011 20120732 5/15/2012 5/22/2012<0.020 0.040+1-0.0012 20120748 5/22/2012 5/29/2012<0.015 0.040+1-0.0012 20120797 5/29/2012 6/512012<0.012 0.026+1-0.0010 20120823 6/5/2012 6/12/2012<0.023 0.023+1-0.0009 20120878 6/12/2012 6/19/2012<0.026 0.022+1-0.0009 20120905 6/19/2012 6/26/2012<0.014 0.034+1-0.0011 40 LLD (pCi/m A 3).0.07 0.01 LABID START DATE END DATE 1-131 GROSS BETA 20120921 6/26/2012 7/3/2012<0.017 0.044+/-0.0012 20120940 7/3/2012 7/10/2012<0.021 0.025+/-0.0009 20120981 7/10/2012 7/17/2012<0.016 0.013+/-0.0007 20121033 7/17/2012 7/24/2012<0.021 0.010+/-0.0007 20121044 7/24/2012 7/31/2012<0.025 0.024+/-0.0010 20121080 7/31/2012 8/8/2012<0.022 0.024+/-0.0009 20121124 8/8/2012 8/14/2012<0.026 0.201+/-0.0010 20121207 8/14/2012 8/21/2012<0.026 0.024+/-0.0009 20121221 8/21/2012 8/28/2012<0.024 0.034+/-0.0011 20121235 8/28/2012 9/4/2012<0.021 0.016+/-0.0008 20121260 9/4/2012 9/11/2012<0.018 0.026+/-0.0010 20121288 9/11/2012 9/18/2012<0.026 0.028+/-0.0010 20121342 9/18/2012 9/25/2012<0.021 0.037+/-0.0011 20121391 9/25/2012 10/2/2012<0.031 0.032+/-0.0010 20121404 10/2/2012 10/9/2012<0.017 0.045+/-0.0012 20121496 10/9/2012 10/16/2012

<0.021 0.046+/-0.0012 20121508 10/16/2012 10/23/2012

<0.070 0.035+/-0.0024 20121589 10/23/2012 10/30/2012

<0.017 0.023+/-0.0009 20121619 10/30/2012 11/6/2012<0.025 0.044+/-0.0012 20121646 11/6/2012 11/13/2012

<0.023 0.026+/-0.0010 20121690 11/13/20121/20/2012<0.019 0.049+/-0.0012 20121733 11/20/2012 11/27/2012

<0.020 0.050+/-0.0012 20121794 11/27/2012 12/4/2012<0.027 0.034+/-0.0011 20121861 12/4/2012 12/11/2012

<0.021 0.022+/-0.0009 20121877 12/11/2012 12/18/2012

<0.024 0.028+/-0.0010 20121884 12/18/2012 12/26/2012

<0.021 0.024+/-0.0009 Average Maximum Minimum 41 0.0279 0.0495 0.0102 Table A 1.2 Sample Type: Air Particulate Filter and Radioiodine Cartridge Analysis: Gross Beta and 1-131 Units: pCi/m 3 AIR SAMPLE AS-3 61VA-Control LLD (pCi/mI\3) 0.07 0.01 LAB 10 START DATE END DATE 1-131 GROSS BETA 20120014 12/27/2011 1/3/2012<0.019 0.035+/-0.0012 20120040 1/3/'4012 1/10/2012<0,012 0.021+/-0.0009 20120063 1/10/2012 1/17/2012<0.022 0.023+/-0.0009 20120109 1/17/2012 1/24/2012<0.019 0.030+/-0.0010 20120126 1/24/2012 1/31/2012<0.020 0.017+/-0.0008 20120163 1/31/2012 2/7/2012<0.022 0.017+/-0.0008 20120229 2/7/2012 2/14/2012<0.019 0.027+/-0.0010 20120270 2/14/2012 2/21/2012<0.018 0.025+/-0.0009 20120305 2/21/2012 2/28/2012<0.022 0.018+/-0.0009 20120345 2/28/2012 3/6/2012<0.019 0.015+/-0.0008 20120366 3/6/2012 3/13/2012<0.026 0.016+/-0.0012 20120392 3/13/2012 3/20/2012<0.016 0.013+/-0.0008 20120416 3/20/2012 3/27/2012<0.018 0.017+/-0.0008 20120446 3/27/2012 4/3/2012<0.026 0.024+/-0.0009 20120459 4/3/2012 4/10/2012<0.023 0.020+/-0.0009 20120505 4/10/2012 4/17/2012<0.022 0.032+/-0.0010 20120555 4/17/2012 4/24/2012<0.022 0.022+/-0.0009 20120604.4/24/2012 5/1/2012<0.015 0.025+/-0.0009 20120649 5/1/2012 5/8/2012<0.018 0.013+/-0.0007 20120685 5/8/2012 5/15/2012<0.017 0.029+/-0.0010 20120733 5/15/2012 5/22/2012<0.025 0.037+/-0.0011 20120749 5/22/2012 5/29/2012<0.011 0.035+/-0.0011 20120798 5/29/2012 6/5/2012<0.018 0.023+/-0.0009 20120824 6/5/2012 6/12/2012<0.030 0.015+/-0.0008 20120879 6/12/2012 6/19/2012<0.022 0.019+/-0.0009 42 LLD (pCi/m A 3)0.07 0.01 LABID START DATE END DATE 1-131 GROSS BETA 20120906 6/19/2012 6/26/2012<0.015 0.029+/-0.0010 20120922 6/26/2012 7/3/2012<0.018 0.036+/-0.0011 20120941 7/3/2012 7/10/2012<0.024 0.021+/-0.0009 20120982 7/10/2012 7/17/2012<0.039 0.013+/-0.0011 20121034 7/17/2012 7/24/2012<0.024 0.013+/-0.0008 20121045 7/24/2012 7/31/2012<0.019 0.025-+/-0.0010 20121081 7/31/2012 8/7/2012<0.020 0.026+/-0.0009 20121125 8/7/2012 8/14/2012<0.027 0.025+/-0.0010 20121208 8/14/2012 8/21/2012<0.021 0.026+/-0.0010 20121222 8/21/2012 8/28/2012<0.024 0.037+/-0.0011 20121236 8/28/2012 9/4/2012<0.023 0.017+/-0.0008 20121261 9/4/2012 9/11/2012<0.014 0.027+/-0.0010 20121289 9/11/2012 9/18/2012<0.027 0.028+/-0.0010 20121343 9/18/2012 9/25/2012<0.023 0.036+/-0.0011 20121392 9/25/2012 10/2/2012<0.026 0.034+/-0.0011 20121405 10/2/2012 10/9/2012-

<0.019 0.046+/-0.0012 20121497 10/9/2012 10/16/2012

<0.028 0.051+/-0.0013 20121509 10/16/2012 10/23/2012

<0.023 0.032+/-0.0010 20121590 10/23/2012 10/30/2012

<0.026 0.024+/-0.0009 20121620 10/30/2012 11/6/2012<0.023 0.046+/-0.0012 20121647.'11/6/2012 11/13/2012

<0.025 0.029+/-0.0010 20121691 11/13/2012 11/20/2012

<0.024 0.051+/-0.0013 20121734 11/20/2012 11/27/2012

<0.033 0.051+/-0.0013 20121795 11/27/2012 12/4/2012<0.023 0.033+/-0.0011 20121862 12/4/2012 12/11/2012

<0.027 0.023+/-0.0009 20121878 12/11/2012 12/18/2012

<0:026 0.033+/-0.0010 20121885 12/18/2012 12/25/2012

<0.029 0.029+/-0.0010 Average Maximum Minimum 43 0.0271 0.0512 0.0128 Table A 1.3 Sample Type: Air Particulate Filter and Radioiodine Cartridge Analysis: Gross Beta and 1-131 Units: pCi/m 3 AIR SAMPLE AS-7-Indicator LLD (pCi/m A 3)0.07 0.01 LAB 10 START DATE END DATE 1-131 GROSS BETA 20120015 12/27/2011 1/3/2012<0.016 0.036+/-0.0012 20120041 1/3/2012 1/10/2012<0.018 0.023+/-0.0009 20120064 1/10/2012 1/17/2012<0.017 0.023+/-0.0009 20120110 1/17/2012 1/24/2012<0.023 0.030+/-0.0010 20120127 1/24/2012 1/31/2012<0.018 0.017.+/-0.0008 20120164 1/31/2012 2/7/2012<0.021 0.014+/-0.0008 20120230 2/7/2012.2/14/2012

<0.014 0.027+/-0.0010 20120271 2/14/2012 2/21/2012<0.025 0.024+/-0.0010.20120306 2/21/2012 2/28/2012<0.020 0.019+/-0.0008 20120346 2/28/2012 3/6/2012<0.019 0.014+/-0.0007 20120367 3/6/2012 3/13/2012<0.022 0.017+/-0.0012 20120393 3/13/2012 3/20/2012<0.014.0.012+/-0.0008 20120417 3/20/2012 3/27/2012<0.016 0.018+/-0.0009 20120447 3/27/2012 4/3/2012<0.020 0.023+/-0.0009 20120460 4/3/2012 4/10/2012<0.024 0.018+/-0.0009 20120506 4/10/2012 4/17/2012<0.020 0.030+/-0.0010 20120556 4/17/2012 4/24/2012<0.023 0.021+/-0.0009 20120605 4/24/2012 5/1/2012<0.012 0.026+/-0.0009 20120650 5/1/2012 5/8/2012<0.016 0.013+/-0.0007 20120686 5/8/2012 5/15/2012<0.014 0.029+/-0.0010 20120734 5/15/2012 5/22/2012<0.020 0.038+/-0.0011 20120750 5/22/2012 5/29/2012<0.014 0.034+/-0.0011 20120799 5/29/2012 6/5/2012<0.013 0.022+/-0.0009 20120825 6/5/2012 6/12/2012<0.018 0.018+/-0.0008 20120880 6/12/2012 6/19/2012<0.021 0.019+/-0.0009 20120907 6/19/2012 6/26/2012<0.015 0.028+/-0.0010 44 LLD (pCi/m A 3)0.07 0.01 LAB 10 START DATE END DATE 1-131 GROSS BETA 20120923 6/26/2012 7/3/2012<0.015 0.040+/-0.0011 20120942 7/3/2012 7/10/2012<0.023 0.022+/-0.0009 20120983 7/10/2012 7/17/2012<0.023 0.010+/-0.0007 20121035 7/17/2012 7/24/2012<0.019 0.013+/-0.0008 20121046 7/24/2012 7/31/2012<0.023 0.023+/-0.0009 20121082 7/31/2012 8/7/2012<0.019 0.029+/-0.0010 20121126 8/7/2012 8/14/2012<0.018 0.024+/-0.0010 20121209 8/14/2012 8/21/2012<0.029 0.024+/-0.0010 20121223 8/21/2012.8/28/2012

<0.025 0.037+/-0.0011 20121237 8/28/2012 9/4/2012<0.026 0.017+/-0.0009 20121262 9/4/2012 9/11/2012<0.013 0.028+/-0.0010 20121290 9/11/2012 9/18/2012<0.019 0.028+/-0.0010 20121344 9/18/2012 9/25/2012<0.021 0.039+/-0.0011 20121393 9/25/2012 10/2/2012<0.030 0.034+/-0.0011 20121406 10/2/2012 10/9/2012<0.015 0.048+/-0.0012 20121498 10/9/2012 10/16/2012

<0.026 0.053+/-0.0013 20121510 10/16/2012 10/23/2012

<0.025 0.033+/-0.0011 20121591 10/23/2012 10/30/2012

<0.022 0.026+/-0.0009 20121621 10/30/2012 11/6/2012<0.025 0.047+/-0.0012 20121648 11/6/2012 11/13/2012

<0.022 0.029+/-0.0010 20121692 11/13/2012 11/20/2012

<0.016 0.053+/-0.0013 20121735 11/20/2012 11/27/2012

<0.020 0.055+/-0.0013 20121796 11/27/2012 12/4/2012<0.028 0.035+/-0.0011 20121863 12/4/2012*12/11/2012

<0.023 0.024+/-0.0009 20121879 12/11/2012 12/18/2012

.<0.029 0.034+/-0.0011 20121886 12/18/2012 12/25/2012

<0.024 0.029+/-0.0010 Average Maximum Minimum 45 0.0274 0.0548 0.0095 Table A 1.4 Sample Type: Air Particulate Filter Analysis: Gamma IsotopicUnits:pCi/m 3 AIR PARTICULATE FILTER QUARTERLY COMPOSITES (GAMMA)LLD (pCi/m A 3)0.05 0.06 LAB 10 LOCATION DATE CS-134 CS-137 20120468 AS-1PG 2/14/2012<0.001<0.001 20120469 AS-361VA 2/14/2012<0.001<0.001 20120470 AS-7 UH 2/14/2012<0.001<0.002 20120984 AS-1PG 5/11/2012<0.001<0.001 20120985 AS-361VA 5/11/2012<0.001<0.001 20120986 AS-7 UH 5/11/2012<0.001<0.001 20121596 AS-1PG 8/18/2012<0.001<0.001 20121597 AS-361VA 8/18/2012<0.001<0.001 20121598 AS-7 UH 8/18/2012<0.001<0.001 20121911 AS-1PG 11/13/2012

<0.001<0.001 20121912 AS-361VA 11/13/2012

<0.001<0.002 20121913 AS-7 UH 11/13/2012

<0.001.<0.001 46 Table A 2.1 Sample Type: Thermoluminescent Dosimeters Analysis: Gamma Dose in 2012 Units: mrem/Qtr Inner Ring*Within General Area of Site Boundary I Station 1st Qtr I 2nd Qtr I 3rd Qtr!4th Qtr I Annual Mean I M-16 9.2 11.1 11.7 11.3 10.8 I M-19 8.1 9.4 11.1 10.3 I 9.7 M-21 9.0 11.2 12.9 13.0 11.5 M-22 6.4 7.9 9.4 8.9 8.2 M-23 6.2 8.7 9.7 9.4 8.5 I M-25 6.0 8.5 9.0 9.8 8.3 M-28 8.6 11.4 11.5 11.7 10.8 M-94 8.3 10.6 11.9 11.9 10.7 M-95 4.8 6.8 7.2 6.5 6.3 M-96 5.4 7.7 7.7 6.8 6.9 M-97 4.9 6.5 7.7 6.8 6.5 M-98 8.9 11.7 13.6 11.2 11.4 M-99*9.9 12.6 13.6 12.0 12.0 I M-100 9.1 11.9 12.5 12.0 I 11.4 I*Location with highest annual mean ND-No Data;TLD inaccessible due to river level Outer Ring-Approximately Three (3)to Five (5)Miles from the Site I I I i I Station 1st Qtr I 2nd Qtr 3rd Qtr 4th Qtr Annual Mean M-36 7.0 8.8 10.0 9.9 8.9 M-40 4.4 6.6 5.5 6.4 5.7 M-48 7.9 10.1 11.0 10.5 9.9 M-49 9.3 11.4 12.3 12.2 11.3 M-50 7.9 9.4 10.3 9.8 9.3 M-55 9.6 12.0 11.5 11.1 11.1 M-57*9.3 11.7 11.9 13.0 11.5 I*Location with highest annual mean 47 Table A 2.2 Sample Type: Thermoluminescent Dosimeters Analysis: Gamma Dose in 2012 Units: mrem/Qtr I Special Interest Areas-Population Centers&Schools I Station I 1st Qtr I 2nd Qtr I 3rd Qtr I 4th Qtr I Annual Mean M-01*9.0 11.8 12.4 12.5 11.4 M-07 8.5 10.7 11.6 11.6 10.6 M-09 7.8 9.8 1'1.0 11.2 10.0 M-10 6.8 8.4 8.9 9.4 8.4 M-33 6.5 8.4 9.0 8.9 8.2 M-38 7.5 10.0 I 10.3 10.4 I 9.5 M-39 7.0 I 9.5 9.5 9.6 8.9*Location with highest annual mean Table A 2.3 Sample Type: Thermoluminescent Dosimeters Analysis: Gamma Dose in 2012 Units: mrem/Qtr Special Interest Areas-Control I I I I Station 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr I Annual Mean I M-14 9.0 11.4 48 12.0 11.7 11.0 Table A 3.1 Sample Type: 2012 Surface Water Analysis: Gamma Isotopic Units: pCi/L SURFACE WATER SAMPLES (GAMMA)LLD/LIQUID 15 15 30 15 30 15 30151518 60 15 LAB 10 LOCATIONDATEMN-54 CO-58 FE-59 CO-60-ZN-65 NB-95 ZR-95 1-131 CS-134 CS-137 BA-140 LA-140 20120307 MRUP 2/27/2012<9.45<8.65<3.32<6.78<15.20<9.95<14.30<12.80<9.36<6.75<39.80<11.90 20120308 MRDOWN 2/27/2012<6.31<5.55<13.10<6.99<12.10<9.77<10.60<11.10<6.33<7.76<33.30<14.90 20120871 MRUP 6/18/2012<8.16<7.55<17.80<8.24<12.70<8.02<12.00<12.20<6.97<8.06<39.90<9.96 20120872 MRDOWN 6/18/2012<7.49<8.25<13.30<7.32<19.50<9.77<15.20<11.50<8.01<7.81<34.80<14.80 20121293 MRUP 9/19/2012<8.30<5.98<12.70<7.45<18.10<8.55<16.30<14.50<7.47<7.58<36.50<13.90 20121294 MRUP DUP 9/19/2012<6.44<7.38<13.20<6.96<15.40<9.05<14.80<11.40<7.71<8.00<36.60<13.20 20121295 MRDOWN 9/19/2012<4.80<4.64<10.10<4.85<8.65<5.39<7.08<8.48<4.41<5.01<25.90<8.78 20121296 GGMRDOWN 9/19/2012<7.14<7.19<10.20<4.05<16.70<7.73<13.90<13.20<5.36<8.31<37.00<12.60 20121708 MR DOWN*11/21/2012

<13.10<11.80<22.80<8.40<23.70<12.90<20.50<13.30<12.20<13.20<42.10<5.92 20121707 GG MRDOWN*11/21/2012

<6.26<7.30<12.00<6.45<13.40<7.68<11.20<10.10<6.08<7.23<35.90<14.20 20121727 MRUP 11/27/2012

<8.83<7.05<16.70<6.40<13.80<9.63<10.70<12.70<7.07<9.93<32.50<12.60 20121728 MRDOWN 11/27/2012

<7.87<8.15<17.10<9.17<17.70<8.74<14.20<14.10<8.89<9.24<44.10<11.90"GG"-indicates duplicate sample.*Annual Sample collected during liquid discharge 49 Table A 3.2 Sample Type:: 2012 Surface Water Analysis: Tritium Units: pCi/L SURFACE WATER SAMPLES (TRITIUM)-GGNS LLD 3000 LAB 10 LOCATION DATE TRITIUM 20120114 OUTFALL 007 1/24/2012<688.00 20120181 OUTFALL 007 2/14/2012 529.00-+:/-181.28 20120307 MRUP 2/27/2012<639.21 20120308 MRDOWN 2/27/2012<637.53 20120368 OUTFALL 007 3/10/2012<645.17 20120646 OUTFALL 007 4/16/2012<396.31 20120695 OUTFALL 007 5/17/2012<657.23 20120873 OUTFALL 007 6/13/2012<655.23 20120871.MRUP 6/18/2012<574.27 20120872 MRDOWN 6/18/2012<647.99 20121032 OUTFALL 007 7/19/2012<571.19 20121127 OUTFALL 007 8/08/2012<590.00 20121263 OUTFALL 007 9/11/2012<541.00 20121293 MRUP 9/19/2012..<574.87 20121294 MRUP DUP 9/19/2012<573.39 20121295 MRDOWN 9/19/2012<574.93 20121296 MRDOWN DUP 9/19/2012<574.37 20121634*MRDOWN 10/11/2012

<614.06 20121635*GG MRDOWN 10/11/2012

<614.34 20121499 OUTFALL 007 10/17/2012

<597.00 20121642 OUTFALL 007 11/12/2012 1,104.00+/-312.92 201.21707*

MRDOWN 11/21/2012

<616.00 20121708*MRDOWNGG 11/21/2012

<611.00 20121727 MRUP 11/27/2012

<637.10 20121728 MRDOWN 11/27/2012

<635.61 20121864 OUTFALL 007 12/12/2012

<611.00*Annual Sample collected during liquid discharge"GG"-indicates duplicate sample.50 Table A 4.1 Sample Type:: 2012 Groundwater Analysis: Gamma Isotopic Units: pCi/L GROUND WATER SAMPLES (GAMMA)LLD1515 30 15 30 15 30 151518 60 15 LAB 10 LOCATION DATE MN-54 CO-58 FE-59 CO-60 ZN-65 NB-95 ZR-95 1-131 CS-134 CS-137 BA-140 LA-140 20120436 CONSTWELL1 03/29/2012

<9.47<9.65<16.20<9.81<18.80<10.50<16.80<11.10<9.42<9.48<34.90<12.20 20120437 CONSTWELL3 03/29/2012

<4.94<6.00<14.00<5.75<9.32<6.82<11.10<8.60<5.79<6.18<29.20<11.80 20120438 CONSTWELL4 03/29/2012

<11.10<6.98<16.30<11.70<13.70<13.10<21.80<14.80<9.62<6.59<53.50<12.50 20120455 PGWELL 04/02/2012

<4.95<5.30<11.30<4.06<8.35<5.68<8.90<14.50<4.66<5.26<34.20<11.60 307436001 CONSTWELL1 06/27/2012

<3.12<2.95<6.88<3.13<6.28<3.72<5.51<11.80<3.07<3.14<8.43

<8.43 307436001 CONSTWELL3 06/27/2012

<3.18<3.62<7.61<3.49<7.10

<3.82<6.43<13.80<3.67<3.58<9.80<9.80 307436002 CONSTWELL4 06/27/2012

<2.88<3.19<7.14<3.39<6.80<3.65<6.32<11.90<3.38<3.40

<8.41<8.41-307436003 PGWELL 07102/2012<2.73<2.82

<6.36<2.96<5.77<3.16<5.43<7.39<3.16<2.83

<5.73<5:73 312096004 CONSTWELL1 09/14/2012

<3.74<3.93<7.01<3.55<6.58<4.18

<7.11<19.70<3.69<3.29<1.13

<1.13 312096002 CONSTWELL3 09/14/2012

<2.59<2.98<6.40<2.74<5.46<3.26<4.76

<15.10<2.82<2.80<9.75<9.75 312096003 CONSTWELL4 09/14/2012<2.83<3.23

<7.01<3.12<6.38<3.62<6.08<17.90<3.14<2.87<10.00<10.00 312096007 PGWELL 09/25/2012

<2.87<3.10<6.28<3.18<6.20

<3.29<5.32<7.22<3.32

<3.27<6.81<6.8 20121760 CONSTWELL1 11/29/2012

<5.04<5.51<11.20<4.98<13.10<5.91<12.20<8.69<5.66<6.26<26.30<11.80 20121763 CONSTWELL3 11/29/2012

<4.39<5.52<9.86<4.69<15.00<6.63<9.02<0.79<5.30<6.17<27.20<8.08 20121761 CONSTWELL4 11/29/2012

<8.91<12.20<21.80<10.50<17.40<14.20<20.10<14.90<7.67<11.80<48.80<14.00 20121762 PGWELL 12/03/2012

<6.67<5.21<11.10<6.55<11.40<6.47<12.40<0.99<4.87<5.92<21.80<10.50 51 Table A 4.2 Sample Type: 2012 Groundwater Analysis: Tritium Units: pCi/L GROUND WATER SAMPLES (TRITIUM)LLD 2000 LASlO LOCATION DATE TRITIUM 20120436 CONSTWELL1 03/29/2012

<707.09 20120437 CONSTWELL3 03/29/2012

<708.72 20120438 CONSTWELL4 03/29/2012

<707.83 20120455 PGWELL 04/02/2012

<636.49 307436001 CONSTWELL1 06/27/2012

<368 307436002 CONSTWELL3 06/27/2012

<367 307436003 CONSTWELL4 06/27/2012

<372 307436004 PGWELL 07/02/2012

<370 312096001 CONSTWELL1 09/14/2012

<212 312096002 CONSTWELL3 09/14/2012

<215 312096003 CONSTWELL4 09/14/2012

<209 312096007 PGWELL 09/25/2012

<218 20121760 COSTWELL1 11/29/2012

<603.81 20121763 CONSTWELL3 11/29/2012

<605.11 20121761 COSTWELL4 11/29/2012

<601.65 20121762 PGWELL 12/03/2012

<602.81 52 Table A 4.3 Sample Type:2012 Groundwater Analysis: Iodine Units: pCi/L GROUNDWATER SAMPLES (lodine-131)

LLD 1.0 LASlO LOCATION DATE 1-131 20111752 PGWELL 12/03/2012

<0.99 20111754 CONSTWELL3 11/29/2012

<0.79 53 Table A 5.1 Sample Type:': 2012 Sediment Analysis: Gamma Isotopic Units: pCi/kg SEDIMENT SAMPLES (GAMMA)LLD 150 180 LAB 10 LOCATION DATE CS-134 CS-137 20121729 SED HAM 11/27/2012

<24.80 37.30+/-11.5 20121730 SEDCONT 11/27/2012

<13.80<19.90 20121731 GG SEDHAM 11/27/2012

<23.70 40.30+/-13.2 20121732 GG SEDCONT 11/27/2012

<20.70<.00"GG"-indicates duplicate sample.54 Table A 6.1 Sample Type:: 2012 Meat Analysis: Gamma Isotopic Units: pCi/kg FISH SAMPLES (GAMMA)LLD 130 130260130 260 130 150 LASlO LOCATION DATE MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 20121407 FISHUP 10108/2012

<8.52<9.82<32.10<10.90<26.50<8.06<9.90 20121408 FISHDOWN 10108/2012

<11.00<10.10<26.90<16.20<26.30<9.30<10.90 55 Table A 7.1 Sample Type: 2012 Food Products Analysis: lodine-131 and Gamma Isotopic Units: pCi/kg VEGETATION SAMPLES (GAMMA)LLD 60 60 80 LASlO LOCATION DATE 1-131 CS-134 CS-137 20120378 VEG-CONT 3/14/2012<46.50<31.20<31.40 20120379 VEG-J 3/15/2012<36.10<24.70<27.00 20120869 VEG-CONT 6/14/2012<37.90<15.70<16.80 20120870 VEG-J 6/14/2012<59.70<21.80<26.10 20121291 VEG-CONT 9/19/2012<44.60<20.60<31.90 20121292 VEG-J 9/20/2012<39.40<19.90<29.70 20121802 VEG-CONT 12/3/2012<39.80<22.50<27.70 20121803 VEG-J 12/5/2012<38.10<27.10<30.10 56 Table A 8.1 Sample Type: Special Samples Analysis: Gamma Isotopic Units: pCi/L SPECIAL SURFACE WATER'SAMPLES (GAMMA)LLD 15 15 30 15 30 15 301515 ,18 GO 15 LAB 10 LOCATION DATE MN-54 CO-58 FE-59 CO-GO ZN-G5 NB-95 ZR-95 1-131 CS-134 CS-137 BA-140 LA-140 20120181 OUTFALL 007 2/14/2012<12,10<9.13<18.00<12.30<26.00<12.20<17.60

<12.20<2.61<9.96<36.10<14.90 20120368 OUTFALL 007 3/10/2012<7.01<5.45<12.00<5.85<13.70<6.76<14.20<13.90<4.66<5.34<32.30<12.00 20120695 OUTFALL 007 5/17/2012<14.60<11.80<22.70

<7.03<22.00<12.40<18.10<12.10<8.72<10.40<45.10<12.50 20121263 OUTFALL 007 9/11/2012<12.10<4.75<19.60<9.13<17.40<11.00<16.80<9.42<8.63<9.26<25.90<14.50 20121642 OUTFALL 007 11/12/2012<13.30<13.10<16.10<12.50<14.30<12.60<11.80<14.70

<11.30<10.50<37.90<14.60"GG"-indicates duplicate sample VENISON SAMPLES (GAMMA)LLO130130 260 130 260 130 150 LASlO SAMPLE 10 DATE MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 20121409 VENISON 10101/2012

<12.00<13.60<37.00<12.101<29.70<8.25<13.10 57 Table A 9.1 Sample Type: 2012 RBS Interlaboratory Comparison Analysis: Gross Beta, Tritium, lodine-131 and Gamma Isotopic Range of 0.80 to Analytics Gross Beta in Water 1.25 E7481-125 Ref Lab Ref Lab Nuclide RBS Mean RBS 1-s Value uncertainty RBS/Ref Pass/pCilL pC ilLpCi/LpCi/L Resolution Lab Ratio Fail Cs-137 227 1 273 4.57 60 0.83 Pass Range of 0.80 to Analytics Gamma in Water 1.25 E7480-125 Ref Lab Ref Lab Nuclide RBS Mean RBS 1-s Value Uncertainty RBS/Ref Pass/pCi/L pCi/L pCi/L pCi/L Resolution Lab Ratio Fail 1-131 102 27.0 99.4 1.66 60 1.03 Pass Ce-141 112 9.00 112 1.87 60 1.00 Pass Cr-51 538 67.0 548 9.14 60 0.98-Pass Cs-134 219 11.0 238 3.97 60 0.92 Pass Cs-137 279 9.00 289 4.82 60 0.97 Pass Co-58 117 12.0 126 2.10 60 0.93 Pass Mn-54 192 20.0 180 3.01 60 1.06--Pass Fe-59 198 24.0 174 2.91 60 1.14 Pass Zn-65 300 40.0 272 4.54 60 1.10 Pass Co-60 485 25.0 484 8.09 60 1.00 Pass 58 Table A 9.1 Sample Type: 2012 RBS Interlaboratory Comparison Analysis: Gross Beta, Tritium, lodine-131 and Gamma Isotopic Range of 0.80 to Analytics Gamma in Milk 1.25 E7483-125 Ref Lab Ref Lab Nuclide RBS Mean RBS1-s Value uncertainty RBS/Ref Pass/pCi/L pCi/L pCi/L pCi/L Resolution Lab Ratio Fail 1-131 67.0 25.0 99.7 1.66 60 0.67 Fail-Ce-141.85.0 13.0 82.2 1.37 60 1.03 Pass Cr-51 399 82.0 402 6.71 60 0.99 Pass Cs-134 150 7.00 174 2.91 60 0.86 Pass Cs-137 197 11.0 212 3.54 60 0.93 Pass Co-58 89.0 10.0 92.3 1.54 60 0.96 Pass Mn-54 139 13.0 132 2.21 60 1.05 Pass Fe-:-59 132 11.0 128 2.13 60 1.03 Pass Zn-65 207 27.0 199 3.33 60 1.04 Pass Co-60 346 9.00 355 5.93 60 0.97 Pass Range of 0.80 to Analytics 1-131 cartridge 1.25 E7482-125 Ref Lab Ref Lab ,/Nuclide RBS Mean RBS1-s Value uncertainty RBS/Ref Pass/pCi/each pCi/each pCi/each pCi/each*Resolution Lab Ratio Fail 1-131 94.0 6.00 96.4 1.61 60 0.97 Pass Analytics Range of 0.80 to E8137-125 Gross Beta filter 1.25 Nuclide Ref Lab Ref Lab RBS Mean RBS1-s Value uncertainty RBS/Ref Pass/pCi/filter pCi/filter pCi/filter pCilfilter Resolution Lab Ratio Fail Cs-137 88.3 0.210 90.5 1.51 60 0.98 Pass 59 Table A 9.1 Sample Type: 2012 RBS Interlaboratory Comparison Analysis: Gross Beta, Tritium, lodine-131 and Gamma Isotopic H-3 Range of 0.80 to in water 1.25 Analytics Ref Lab Ref Lab E8136-125 RBS Mean RBS 1-s Value uncertainty RBS/Ref Pass/Nuclide pCi/LpCi/LpCi/LpCi/L Resolution Lab Ratio Fail H-3 13500 103 13000 217 60 1.03 Pass Range of 0.80 to Gamma Filter 1.25 Analytics Ref Lab Ref LabE8138-125RBS Mean RBS 1-s Value Uncertainty RBS/Ref Pass/Nuclide pCi/filter pCi/filterpCi/filterpCi/filter Resolution Lab Ratio Fail Ce-141 134 8 134 2.23 60 1.00 Pass Cs-134 78.9 1.6 88.3 1.47 60 0.89 Pass Cs-137 143 2.0 142 2.37 60 1.01 Pass Co-58 77.8 3.6 82.0 1.37 60 0.95.Pass Mn-54 169 9.5 160 2.67 60 1.06 Pass Fe-59 133 12.8 124 2.07 60 1.07 Pass Zn-65 161 8.5 157 2.62 60 1.02 Pass Co-60 127 2.6 124 2.07 60 1.03 Pass Range of 0.80 to Gamma Soil 1.25 Analytics Ref Lab Ref Lab E8139-125 RBS Mean RBS 1-s Value Uncertainty RBS/Ref Pass/NuclidepCi/gpCi/g pCi/g pCi/g Resolution Lab Ratio Fail Ce-141 0.471 0.108 0.419 0.00699 60'1.12 Pass Cs-134 0.256 0.013 0.277 0.00462 60 0.92 Pass Cs-1370.5290.022 0.536 0.00895 60 0.99 Pass Co-58 0.240 0.030 0.257 0.00429 60 0.93 Pass Mn-54 0.515 0.009 0.501 0.00836 60 1.03 Pass Fe-59 0.444 0.035 0.389 0.00649 60 1.14 Pass Zn-65 0.508 0.050 0.492 0.00822 60 1.03 Pass Co-60 0.388 0.014 0.389 0.00649 60 1.00 Pass 60 Table A 9.1 Sample Type: 2012 RBS Interlaboratory Comparison Analysis: Gross Beta, Tritium, lodine-131 and Gamma Isotopic Range of 0.80 to Gamma in Milk 1.25 Analytics Ref Lab Ref Lab E10513 RBS Mean RBS1-s Value uncertainty RBS/Ref Pass/Nuclide pCi/L pCi/L pCi/L pCilL Resolution Lab Ratio Fail 1-131 105 9 100 1.67 60 1.05 Pass Ce-141 196 13 187 3.13 60 1.05 Pass Cr-51 495 74 472 7.88 60 1.05 Pass Cs-134 215 17 214 3.57 60 1.01 Pass Cs-137 272 17 266 4.44 60 1.02 Pass Co-58 218 14 208 3.47 60 1.05 Pass Mn-54 218 11 208 3.48 60 1.05 Pass Fe-59 257 9 252 4.21 60 1.02 Pass Zn-65 316 23 301 5.02 60 1.05 Pass Co-60 396 8 400 6.68 60 0.99 Pass One result was outside the control limits for accuracy in the 2012 Interlaboratory Comparison program studies.1-131 in milk had a River Bend (RBS)to Reference Lab (EZA)ratio of 0.67 versus an acceptable range of 0.80-1.25.The mean for RBS was 67 pCi/Lversus the reference mean of 99.7 pCi/L.Review of the data results for 1-131 in milk showed consistently low values.The vendor laboratory supplying the cross-check sample was contacted regarding the result for 1-131 in milk.No systematic bias was indicated among participants.

A similar sample (gamma inwater)analyzed in the same time period indicated an acceptable ratio of 1.03.A review of gamma spectroscopy quality control data revealed no anomalies.

A second gamma in milk sample was analyzed with acceptable results.Environmental samples are analyzed and reported with a ninety-five percent confidence level.A known standard is counted daily prior to any samples and must read within the control limits of the decay corrected activity;therefore, there is no impact on previously reported data due to these results.61 Table A 9.2 Sample Type: EDC 2012 Annual Quality Assurance Status Report Analysis: Environmental Dosimeters ENVIRONMENTAL DOSIMETRY COMPANY PERCENTAGE OF DOSIMETERS THAT PASSED INTERNAL BIAS AND PRECISION CRITERIA JANUARY-DECEMBER 2012 1 0/0 Passed 0/0 Passed Bias Precisio'n Dosimeter Type Number Tested Criterion 2 Criterion 3 Panasonic Environmental 72 100 100 (1)Environmental dosimeter results are free in air.(2)Bias criterion=+/-15%(3)Precision criterion=+/-12.8%Table 9.3 Sample Type: GEL 2012 Environmental Quality Assurance Summary Matrix: Milk, Solid, Filter, Liquid, Tissue, Vegetation, Air Charcoal, Drinking Water GEL LABORATORIES LLC INTRA-LABORATORY QA DATA SUMMARIES Bias Criteria Precision Criteria Within Outside Within Outside Data Summary CriteriaCriteriaCriteria Criteria REMP Test Results 2,941 2 3,242 0 All Radiological Test Results 22,305 6 27,436 29 62