ML091240225

Submittal of Annual Radiological Environmental Operating Report (AREOR) for 2008

ML091240225
Person / Time
Site:	Grand Gulf
Issue date:	04/29/2009
From:	Perino C Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
GNRO-2009/00025
Download: ML091240225 (68)

Text

tergy GNRO-2009/00025 April 29, 2009 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555

Subject:

Grand Gulf Nuclear Station (GGNS) 2008 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 the Grand Gulf Nuclear Station Unit 1 Technical Specification 5.6.2, attached is the Annual Radiological Environmental Operating Report for the period January 1, 2008 through December 31, 2008.

This letter does not contain any commitments.

If you hav~ questions or require additional information concerning these reports~ plpase contact Mr. Richard Scarbrough (601) 437-6316 or Michael Larson at (601) 437-6685.

CLP/MJL

Attachment:

cc:

2008 Annual Radiological Environmental Operating Report (See Next Page)

GNRO-2009/00025 Page 2 of 2 cc:

NRC Senior Resident Inspector Grand Gulf Nuclear Station Port Gibson, MS 39150 u.S. Nuclear Regulatory Commission ATTN: Mr. Elmo E. Collins, Jr. (w/2) 612 East Lamar Blvd, Suite 400 Arlington, TX 76011-4005

u. S. Nuclear Regulatory Commission ATTN: Mr. Carl F. Lyon, NRR/ADRO/DORL (w/2)

ATTN: ADDRESSEE ONLY ATTN: U. S. Postal Delivery Address Only Mail Stop OWFN/8 81 Washington, DC 20555-0001

ENTERGY OPERATIONS, INC.

GRAND GULF NUCLEAR STATION ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT January 1, 2008-December 31, 2008 Reviewed By Approved 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 3.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

3.1 Program Results Summary 2

6 11 11 11 12 24 24 24 26 26 26 27 27 27 34 35 35

TABLE 1.1 TABLE 2.1 TABLE 3.1 LIST OF TABLES RADIOLOGICAL ENVIRONMENTAL SAMPLING PROGRAM LAND USE CENSUS RESULTS RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

3 13 29 36

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

21 22 23 25

ATTACHMENT 1 LIST OF ATTACHMENTS RADIOLOGICAL MONITORING REPORT

SUMMARY

OF MONITORING RESULTS 5

41

Summary The Annual Radiological Environmental Operating Report presents data obtained through analyses of environmental samples collected for Grand Gulf Nuclear Station's (OONS)

Radiological Environmental Monitoring Program (REMP) for the period January 1, 2008 through December 31, 2008.

This report fulfills the requirements of GGNS Technical Specification 5.6.2.

To supplement the REMP, GGNS personnel collected duplicate surface water, ground water, vegetation, sediment and fish samples during the reporting period. Special samples collected during the reporting period included vegetation and surface water. GGNS did not detect any plant-related radionuclides in these samples.

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 is occurring within five miles ofthe plant.

The REMP includes sampling indicator and control locations within an I8-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 the presence of only naturally occurring radioactivity.

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

In the current year, GGNS personnel collected environmental samples for radiological analysis.

They compared results of indicator locations with control locations and previous studies, and concluded that overall no significant relationship exists between GGNS operation and effect on the plant environs. Their review of current year data, in many cases, showed undetectable radiation levels in the environment and near background level in significant pathways associated with GGNS.

6

Harmful Effects or Irreversible Damage The REMP monitoring did not detect any harmful effects or evidence of irreversible damage in the current year. Therefore, no analysis or planned course of action to alleviate problems was necessary.

Reporting Levels GGNS' review indicates that no samples equaled or exceeded reporting levels for radioactivity concentration in environmental samples, as outlined in aDCM Specifications Table 6.12.1-2 when averaged over any calendar quarter, due to GGNS effluents. Therefore, results did not trigger any Radiological Monitoring Program Special Reports.

Radioactivity Not Attributable to GGNS In previous years, the GGNS REMP detected radioactivity attributable to other sources twice.

These include the 25th Chinese nuclear test explosion in 1980, and the radioactivity plume release due to reactor core degradation at the Chemobyl Nuclear Power Plant in 1986.

Comparison to Federal and State Programs GGNS personnel compared REMP data to federal and state monitoring programs as results became available.

Historically, the programs used for comparison have included the u.S.

Nuclear Regulatory Commission (NRC) TLD Direct Radiation Monitoring Network and the Mississippi State Department ofHealth (MSDH), Division ofRadiological Health.

The NRC TLD Network Program was discontinued in 1998.

Historically these results compared favorably to those from the GGNS REMP.

GGNS TLD results remain similar to the historical average and continue to verify that plant operation is not affecting the ambient radiation levels in the environment.

The MSDH and the GGNS REMP entail similar radiological environmental monitoring program requirements.

These programs include concurrent air sampling and splitting or sharing sample media such as water, sediment, fish and food products. Both programs have obtained similar results over previous years. The results of MSDH's monitoring program for the reporting period compared favorably with the GGNS REMP and did not indicate elevated levels ofradiation or radioactivity build-up attributed to plant operations.

7

Sample Deviations Milk The REMP did not include milk sampling within five miles (8 kIn) of GGNS in the current year due to unavailability.

aDCM Specifications require collection of milk samples if available commercially within 8 kIn (5 miles) of the plant. GGNS personnel collected vegetation samples to monitor the ingestion pathway, as specified in aDCM Specifications Table 6.12.1-1, because ofmilk unavailability.

Required Lower Limit of Detection (LLD) Values LLDs during this reporting period were within the acceptable limits required by the aDCM specifications.

8

Air Samples The

'tAII!Alil'tnn air locations had reduced run times due to vveather-related outages or JJlechanical problenls.

i\\S described in footnote to OI)(]\\t1. Specification "fable 6.12.1-1, deviations from the rClol11'tl1"'Cul S(]Lrnpllng schedule are due to nlalfunction of sarnpling equipment and other legitirnate reasons.

Out-of-Sample Date In Date Out RunTime service Comments Location hours hours AS-361VA 01/29/08 02/05/08 121.93 49.33 Sampling Equipment Failure AS-1 PG 02/12/08 02/19/08 132.90 36.85 Power Outage AS-7 UH 02/12/08 02/19/08 165.63 6.47 Power Outage AS-7 UH 02/26/08 03/04/08 163.03 0.57 Power Outage AS-7 UH 03/18/08 03/25/08 164.87 1.77 Power Outage AS-7 UH 04/01/08 04/08/08 163.08 3.62 Power Outage AS-7 UH 05/06/08 05/13/08 169.20 2.0 Power Outage AS-361VA 05/13/08 05/20/08 167.06 1.05 Power Outage AS-361VA 05/20/08 OS/27/08 30.25 140.40 Sampling Equipment Failure AS-7 UH 05/20/08 OS/27/08 166.50 0.67 Power Outage AS-361VA OS/27/08 06/03/08 83.04 87.45 Sampling Equipment Failure AS-7 UH 06/10/08 06/17/08 158.90 0.37 Power Outage AS-7 UH 06/17/08 06/24/08 105.93 67.72 Sampling Equipment Failure AS-7 UH 06/24/08 07/01/08

'161.33 1.47 Power Outage AS-7 UH 07/15/08 07/22/08 164,93 3.32 Power Outage AS-7 UH 07/29/08 08/05/08 159.46 8.87 Power Outage AS-7 UH 08/05/08 08/12/08 172.10 3.07 Power Outage AS-1 PG 08/26/08 09/02/08 152.07 15.98 Power Outage AS-7 UH 08/26/08 09/02/08 152.34 14.77 Power Outage AS-1 PG 09/02/08 09/09/08 160.62 4.00 Power Outage AS-7 UH 09/02/08 09/09/08 156.88 10.67 Power Outage AS-361VA 09/02/08 09/09/08 93.35 70.57 Sampling Equipment Failure AS-361VA 09/09/08 09/16/08 137.34 30.83 Sampling Equipment Failure AS-7 UH 11/25/08 12/02/08 168.77 2.35 Power Outage Based on the sample collection period reductions, air sanlples were collected the follo\\ving percentages of the available tilne:

AS-1 PG 990/0 AS-361VA 96%

AS-7 UH 99%

Missed Samples dtle to l1igh \\vater level [Nf-23:1 st &

Quarters].

Similarly locatecl were revie\\ved and.

near 11ackground.

9

Unavailable Results GGNS received analytical results in adequate time for inclusion In tllis report.

In addition, GGNS' review identified no missing results.

Program I\\1odifications N"o progranl nlodifications took. place during this SamlJlin.g period.

Attachments contains results of TLD, air, water, sediment, fish, food products and special samples collected. TLDs were analyzed by AREVA NP Inc.. All remaining samples were analyzed by River Bend Station's (RBS) Environmental Laboratory. also contains RBS' results from participation in the interlaboratory comparison program.

10

1.0 Introduction 1.1 Radiological Environmental Monitoring Program GGNS established the REMP to ensure that plant operating controls properly function to minimize any associated radiation endangennent to hunlan healtll or the environment. The REMP is designed for:

Analyzing important pathways for anticipated types and quantities of radionuclides released into the environment.

Considering the possibility of a buildup of long-lived radionuclides in the environment and identifying physical and biological accumulations that may contribute to human exposures.

Considering the potential radiation exposure to plant and animal life In the environment surrounding GGNS.

Correlating levels of radiation and radioactivity In the environment with radioactive releases from station operation.

1.2 Pathways Monitored The airborne, direct radiation, waterborne and ingestion pathways, as seen in Figure 1-1, are monitored as required by GGNS aDCM 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 ofresults for the monitored exposure pathways.

11

1.3 Land Use Census GGNS personnel conduct a land use census biannually, as required by aDCM Specification 6.12.2.

Data for the most recel1t land use census is included. The purpose of this census is to identify changes in uses of land within five miles of GGNS that would require modifications to the REMP or the aDCM The most important criteria during this census are to determine location in each sector of the nearest:

1) Residence

2) Animal milked for human consumption

3) Garden ofgreater than 50 m2(500 ft2) producing broadleafvegetation.

When performed, GGNS personnel conduct the land use census by:

Field surveys in each meteorological sector out to five miles in order to confirm:

Nearest permanent residence Nearest unoccupied residence Nearest garden and approximate size

>- Nearest milking animal.

Identifying locations on maps, measuring distances to GGNS and recording results on surveillance data sheets.

Comparing current land use census results to previous results.

Contacting the Claiborne County Agent for verification ofnearest dairy animals.

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Table 1.1 Radiological Environmental Sampling Program Exposure Pathway Requirement Sample Point Description, Distance and Direction Sampling and Collection Frequency Type and Frequency Of Analyses Airborne Radioiodine and Particulates 1

sample close to the SITE AS-7 UH (Sector H, Radius 0.5 Miles) -

Continuous sampler operation Radioiodine Cannister -

1-131; BOUNDARY having the highest South-southeast of GGNS at the ISEW with sample collection per 7 7 days calculated annual average Union Hall.

days or as required by dust groundlevel 0/0.

loading, whichever is more Particulate Sampler Gross frequent beta radioactivity following filter change, composite (by location) for gamma isotopic; 92 days Radioiodine and Particulates 1

sample from the vicinity of a

AS-1 PG (Sector G, Radius 5.5 Miles) -

community having the highest Southeast of GGNS at the Port Gibson City calculated annual average Barn.

groundlevel 0/0.

Direct Radiation Radioiodine and Particulates 1 sample from a control location 15 -

30 km (10 - 20 miles) distance.

TLDs An inner ring of stations in the general areas of the SITE BOUNDARY.

AS-3 61VA (Sector B, Radius 18 Miles) -

North-northeast of GGNS on Hwy 61, North of the Vicksburg Airport.

M-16 (Sector A, Radius 0.9 Miles) -

Meteorological Tower.

M-17 (Sector C, Radius 0.5 Miles) -

South Side, Grand Gulf Road.

M-19 (Sector E, Radius 0.5 Miles) -

Eastern SITE BOUNDARY Property line, North-northeast of HWSA.

13 92 days Gamma dose; 92 days

Table 1.1 Radiological Environmental Sampling Program Exposure Requirement Sample Point Description, Sampling and Type and Frequency Pathway Distance and Direction Collection Frequency Of Analyses Direct TLDs Radiation An inner ring of stations in the M-21 (Sector J, Radius 0.4 Miles) - Near 92 days Gamma dose; 92 days general areas of the SITE Former Training Center Building on Bald BOUNDARY.

Hill Road.

M-22 (Sector G, Radius 0.5 Miles) -

Former RR Entrance Crossing On Bald Hill Road.

M-23 (Sector Q, Radius 0.5 Miles) - Gin Lake Road 50 Yards North of Heavy Haul Road on Power Pole.

M-25 (Sector N, Radius 1.6 Miles)

Radial Well Number 1.

M-28 (Sector L, Radius 0.9 Miles) -

Former Glodjo Residence.

M-94 (Sector R, Radius 0.8 Miles) -

Sector R Near Meteorological Tower.

14

Exposure Pathway Direct Radiation Radiological Requirement TLDs An inner ring of stations in the general areas of the SITE BOUNDARY.

TLDs An outer ring approximately 3 to 5 miles from the site.

Table 1.1 Environmental Sampling Sample Point Description, Distance and Direction M-95 (Sector F, Radius 0.5 mil - Spoils

Area, fence of old storage

area, near entrance M-96 (Sector B, Radius 0.7 mi.) - North Gate Fence M-97 (Sector 0, Radius 0.8 mi.) - Grand Gulf Road entrance gate to spoils area M-98 (Sector H, Radius 0.5 mi.) - Bald Hill Road, across form 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, across from L. Frazier M-36 (Sector P, Radius 5.0 Miles) -

Curve on HW 608, Point Nearest GGNS at Power Pole.

M-40 (Sector M, Radius 2.3 Miles) -

Headly Drive, Near River Port Entrance.

15 Progranl Sampling and Collection Frequency 92 days Type and Frequency Of Analyses Gamma dose; 92 days

Exposure Pathway Direct Radiation Table 1.1 Radiological Environmental Sampling Program Requirement Sample Point Description, Distance and Direction TLDs An outer ring approximately 3 to 5 M-48 (Sector K, Radius 4.8 Miles) - 0.4 Miles miles from the site.

South on Mont Gomer Road 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) - Hwy 61, Behind the Welcome to Port Gibson Sign at Glensdale Subdivision.

Sampling and Collection Frequency 92 days Type and Frequency Of Analyses Gamma dose; 92 days TLDs 8 stations in special interest areas such as population centers, nearby residences, schools, and in 1 or 2 areas to serve as control stations.

M-01 (Sector E, Radius 3.5 Miles) - Across the road from Lake Claiborne Entry Gate. (Special Interest)

M-07 (Sector G, Radius 5.5 Miles)

AS-1 PG, Port Gibson City Barn. (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) 16

Table 1.1 Radiological Environmental Sampling Program Exposure Pathway Requirement Sample Point Description, Distance and Direction Sampling and Collection Frequency Type and Frequency Of Analyses Direct Radiation TLDs 8 stations in special interest areas M-14 (Sector B, Radius 18.0 Miles)

AS such as population centers, nearby 61 VA, Hwy 61, North of Vicksburg Airport.

residences, schools, and in 1 or 2 (Control) areas to serve as control stations M-33 (Sector P,

Radius 12.5 Miles)

Newellton, Louisiana Water Tower. (Special Interest)

M-38 (Sector M, Radius 9.5 Miles) - Lake Bruin State Park, Entrance Road. (Special Interest)

M-39 (Sector M, Radius 13.0 Miles) -

St.

Joseph, Louisiana, Auxiliary Water Tank.

(Special Interest) 17 92 days Gamma dose; 92 days

Exposure Pathway Waterborne Requirement Surface Water 1 sample upstream.

1 sample downstream.

1 sample downstream during a Liquid Radwaste Discharge.

1 sample from Outfall 007 Table 1.1 Radiological Environnlental Sampling Program Sample Point Description, Distance and Direction MRUP (Sector R, Radius 1.8 Miles) - At least 4500 ft upstream of the GGNS discharge point into the Mississippi River to 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 into the Mississippi River near Radial Well NO.1.

MRDOWN (Sector P,

Radius 1.3 Miles)

Downstream of the GGNS discharge point into the Mississippi River near Radial Well No.5.

OUTFALL 007 (Sector N, Radius 0.2 Miles) - Storm Drain System 18 Sampling and Collection Frequency 92 days 366 days 31 days Type and Frequency Of Analyses Gamma isotopic and tritium analyses; 92 days Gamma isotopic and tritium analyses; 366 days Tritium; 31 days

Table 1.1 Radiological Environmental Sampling Progralll Exposure Requirement Pathway Waterborne Groundwater Samples from 2 sources.

Sediment From Shoreline 1 sample from downstream area.

1 sample from upstream area.

Sample Point Description, Distance and Direction PGWELL (Sector G, Radius 5.0 Miles)

Port Gibson Wells - Take from distribution system or one of the five wells.

CONSTWELL (Sector Q, Radius 0.4 Miles)

GGNS Construction Water Well - Taken from distribution system or the well.

SEDHAM (Sector N, Radius 1.6 Miles) -

Downstream of the GGNS discharge point in the Mississippi River near Hamilton Lake outlet.

SEDCONT (Minimum of 100 yds)

Upstream of the GGNS discharge point in the Mississippi River.

Sampling and Collection Frequency 366 days 366 days Type and Frequency Of Analyses Gamma isotopic and tritium analyses; 366 days Gamma isotopic; 366 days Ingestion Milk 1 sample from milking animals within 8 km if milk is available commercially.

Currently, no available milking animals within 8 km ofGGNS.

92 days when required Gamma isotopic and 1-131; 92 days 1

control sample (only if indicator ALCONT (Sector K, Radius 10.5 Miles) -

exists) >8 km if milk is available.

Located South-southwest of GGNS at Alcorn State University.

19

Table 1.1 Radiological Environmental Sampling PrograIn Exposure Pathway Requirement Sample Point Description, Distance and Direction Sampling and Collection Frequency Type and Frequency Of Analyses Ingestion Fish 1

sample in discharge point.

vicinity of GGNS FISHDOWN -

Downstream of the GGNS discharge point into the Mississippi River 366 days Gamma isotopic portion; 366 days on edible 1

sample uninfluenced by GGNS discharge.

Food Products 1

sample of broadleaf vegetation grown in one of two different offsite locations with highest anticipated annual average ground level D/Q if milk sampling is not performed.

1 sample of similar vegetation grown 15 30 km distant if milk sampling is not performed.

FISHUP - Upstream of the GGNS discharge point in the Mississippi River uninfluenced by plant operations.

VEG-J (Sector J, Radius 0.4 Miles) - South of GGNS near former Training Center on Bald Hill Road.

VEG-CONT (Sector K, Radius 10.5 Miles)-

Alcorn State University south-southwest of GGNS when available, otherwise a location 15-30 km distant.

20 92 days when available Gamma isotopic and 1-131; 92 days

FIGURE 1-1 21

~

Ingestfon

FIGURE 1-2 SAMPLE COLLECTION SITES - NEAR FIELD ENTERGY SCALE IN MILES GRAND GULF NUCLEAR STATION

()'-4 M1\\e EFlvironmenta\\

Sampling l.ocatlon Map 1

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Ranney Wells Milk GI'~~ d Gulf. Unit 1 3.0--7 RevisiOf'l 37 02/09 Collection Site Locations

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10 MiIeI from Grand Gulf FIGURE 1-3 SAMPLE COLLECTION SITES - FAR FIELD B

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FIGURE 3.0-2 Collection Site Locations. General Area Map 4-10 Mile Area Map LEGEND o Air $arnP'er 0

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BloadJeaI VegetatIon sediment 0

TLD

• Ranney wens Milk 18 MILES FROM GRANO GULF TO VICKSBURG AJRPORT Sector (B)

ENTERGY GRAND GULF NUClEAR STATION 4-10 Mile Environrnenta(

SampUng Location Map Grand Gulf, unit 1 3.o-a Revision 35 OOQ7

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 or Iodine-131 in the radioiodine cartridges during the reporting period, as has been the case in previous years. The REMP detected radioactivity in this pathway attributable to other sources twice. These include the 25th Chinese nuclear test explosion in 1980, and the radioactive plume release due to reactor core degradation at Chernobyl Nuclear Power Plant in 1986. Therefore, the airborne exposure pathway has been unaffected by the operation of GGNS and airborne concentrations continue to be at background levels.

Table 3.1, which includes gross beta concentrations, provides a comparison of the indicator and control means and ranges, further emphasizes that the airborne pathway continues to remain at background levels. In the absence of plant-related gamma radionuclides, gross beta activity is attributed to naturally occurring radionuclides.

Consistent trends are present for control and indicator locations. This further supports the presence of naturally occurring activity.

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 nonnalized to 92 days.

GGNS relies on comparison of the indicator locations to the control location as a measure 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.

GGNS' 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 operations had no significant impact on ambient radiation levels during the reporting period.

With the exception of TLD locations :M-21 (Sector J, O.4miles),M-98 (Sector II 0.5 Iniles and M-99 (Sector K, 0.4 Iniles) direct radiatioll levels continue to remaill at or near backgrolllld. 'rhe dose rate at these locations is a result of increased Njtrogen-16 levels associated with hydrogell i11jectioll. Hydrogen injection into tIle feed\\vater systenl provides protection against lntergrallular Stress Corrosioll of plant cOlnpOllc11tS. I)ose rates at locations M-21 [3.4 millirenl per quarter], M-98 [1.2 nlillirem per quarter] and.

M-99 [3.0 Inillirem per quarter] above Control location M-14 (sector B, 18.0 miles) remain well below the limitations of 10 CFR 20.1301(a)(2) and 10CFR 20.1302(b)(2)(ii).

24

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2.3 "Vater 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 gamina emitting radionuclides and tritium. Piallt 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 routine, previously monitored gaseous effluents.

As a result, tritium levels below the minimum detection level requirement (3000 pCi/L) are occasionally observed. \\Vhen detected, l"\\ritillnl was measured at an average concentration of 545 +/- 253.pCi/L in. the Outfall 007 (indicator) locatioll.

In addition to the tritium samples required by the REMP, four special surface water samples for gamma were collected at the Outfall 007 location. Plant related gamma emitting radionuclides remained undetectable in these samples.

Based on review of results and historical data, GGNS concluded that plant operations had no significant impact on this pathway during the reporting period.

Groundwater samples were collected from two locations (indicator and control) and analyzed for gamma emitting radionuclides and tritium. 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, GGNS concluded that plant operations had no significant impact on this pathway during the reporting period.

2.4 Sediment Sample Results Sediment samples were collected from two ODCM Specification locations (indicator and control) and analyzed for gamma emitting radionuclides. In this reporting period, plant related gamma emitting radionuclides were below detectable concentrations in the upstream (control) and dO\\Vllstreanl (illdicator) locations.

Based on review of results and historical data, GGNS concluded that plant operations had no significant impact on this pathway during the reporting period.

2.5 Milk Sample Results GGNS personnel did not collect milk samples 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, it is concluded GGNS' operation had no impact on this pathway.

26

2.6 Fish Sample Results Fish samples were collected from two locatiolls (indicator and control) and analyzed for gamma emitting radionuclides. GGNS did not detect any plant related gamma emitting radionuclides in fish samples 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 \\vere collected from control and indicator locations when available and analyzed for gamma emitting radionuclides. GGNS did not detect any plant related gamma emitting radionuclides in vegetation samples during the reporting period. Nuclides detected previously at the control and indicator locations are attributed to the Chernobyl release and atmospheric weapons testing. These results indicate that this pathway has not been affected by plant operations.

One sanlple of vegetation was collected at an onsite location to supplement the REMP.

GGNS did not detect any plant related gamma emitting radionuclides in this vegetation sample during the reporting period.

2.8 Land Use Census Results Results from the Lalld Use Cel1SUS performed l\\pril 9-14, 2008 are illclucled ill this report.

Methods utilized include: visual surveys, door to door surveys, telephone interviews, GPS, Aerial Photography, and consultation with the local county agent concerning dairy production in Claiborne County.

During the survey the following questions were asked:

1). Name ofoccupant 2). Address 3). Number ofpeople residing at residence 4). Age group ofoccupants 5). Any farm animal raised for human consumption 6). Any dairy production 7). Maintain a garden Changes from the previous Land Use Census were evaluated in accordance with GGNS surveillance 06-EN-SOOO-O-0002. The differences were compared to the locations and assumptions used in calculations for compliance with the Offsite Dose Calculation Manual (ODCM), LCO 6.11.6.

It was determined that the locations and assumptions currently used ill ODCM are more conservative than any of the changes.

Determinations from the most recent Land Use Census results are:

27

The cllild group \\vith the highest dose comlnitnlellt is in Sector f\\ (Nortll) at 1.78 Iniles, GCrN'S OI)CM' calculation.s currently llses the lTI.axitTI.ulTI. calculated dose from either Sector L (Southwest) at 0.89 miles or Sector C (Nortlleast) at 0.67 Iniles.

Doses calculated at Sector A would be lower.

One location. recorded as unoccupied in the previolls land lIse census is now occupied, sector E (East) at 0.83 miles, \\VIlicilbeconles tIle nearest occupied residellce.

13ecause of do\\vnwind location al1.d/or distance froln the site~ in no case will the occupancy of an existing Ul10ccu.pied residence cause any aDCM critical receptor calculation results to be less conservative.

N'o additional satTI.pIing locations are required as the on.site garden/vegetation sampling locatiol1 (Sector J, 0.4 miles) is more conservative thal1 changes identified in the lan.d use census.

Cattle are raised for hUln.an consulnption (lnost notably Sector 1-1, J, a.nd.K).

GGNS uses the Grass/Cow/Meat patllvvay.

The nlilkpatl1way' does not lleed to be activated, no comnlercial dairy production is occurrin.g within 5 miles.

Individual in SectorF occasionally milks one of her cows for consumption iftIle cow is producing too Inuch lnilk for tIle calf. T'his is not conlmercial dairy production. as referenced by a:DCM r-rable 6.12.1-1 ; therefore, the n1ilk patllway does not need to be activated.

Sectors M, N, P, and Q are remote areas in which the primary use is hunting.

Area was sllrveyed by vellicle and aerial photograplls.

Also, all areas in IJouisiana within 5 miles belong to a private hUl1ting club. Fronl the previo'us census,personnel at entran.ce gate were intervie\\ved and responded, ""No IJenn.an.etlt residence or garden.s, the area is posted".

Gardens, regardless of size, were incilldeci in the census clata.

28

Table 2.1 Land Use Census Results Parameter Sector A Sector B*

Sector C Sector D I. Nearest ()ccupied l~esidence a.Distance (mile)

b. NUlnber of ()ccupants

c. Dpgrees fronl true north 0.98 2

354.0 0.83 2

15.1 0.67 2

42.1 6

60.5 None None Yes Yes Yes N/A N/A N/A Yes Yes None None None None 1.52 0.67 2.86

~4050

~ 1250

~ 500 21.9 42.1 59.7 Yes N/A None 0.94 1.78

~ 1200 352.2

a. ]s nearest occupied residence in sanle location as last census?

b. Is nearest nlilk anilnal in same location as last census?

c. Is nearest broadleaf garden in same location as last census?

Yes

a. Distance a.Distance (lnile)

b. Ciarden size (fl2) c.DAgrees frOITI true north a.Distance (Inile)

IV. Nearest )lroadleaf

v. (:enslls Comparisoll II. Nearest lJnocCll)licll Residellce (closer thall occupied residence)

IIl.Nearest Milk.Animal

....J

....~'..... J....,....,"'" fronl1ast eenSllS, see attacl1ed table of Land tJse CenSllS Changes 29

Table 2.1 Land Use Census Results

1. 'Nearest OCCllpicd 11

.,1 Parameter a.Distance (nl1Ie)

b. Nunlber of ()ccupants

c. l)errr'ees fronl true north Sector E

• 0.83 1

95.1 Sector F

• 2.25 I

101.5 Sector G 2.10 3

129.7 Sector II 1.11 6

1 None None None None 0.89 4.05 3.81 1.11

~1000

~50

~1600

~ 500 86.9 114.3 129.1 "l

II. Nearest lJnoccupictf Residcllce (closer than occupied residenc,e)

):II.Nearest"Mjlk,JA.nilnaJ IV. Nearest Broadleaf

(;arclen

v. (:CI1SllS (~omparison

a. Distance (rnile) a.Distance

a. IJistance (rnile)

b. CJ~rden (ft2) c.Degrees from true north

a. Is nearest occupied residence in sanle location as census?

b. Is nearest rnilk animal in sanle location as last

c. Is nearest broadleaf garden in sanle location as last None No N/A None Yes N/A Yes 1.93 Yes Yes 1.08 Yes fronl

"""""'.J,.l....JLt. *.,~ see attacl1ed table of Lal1d

"""'-/"""'JL.L...JL",...J Changes 30

Table 2.1 Land Use Census Results Parameter Sector J Sector K Sector L SectorM I. Nearest ()ccupied ResidclICC a.

l~l'l11\\..lCi (Iuite)

b. Nlnnber of Occupants c.

~gre froIU true north 3.16 2

1 2.23 1

196.9 0.89 2

219.7 None II. N'earest lJllocCupic(IResi(lellCe (closer than occupiell residence)

a. I)istance (nlile)

None None None None III. Nearest l\\1ilk Animal a.Distance None None None NOlle cen.SllS, see attach.cd table I..Jan.d

v. Census Comparisoll IV. Nearest Broadlcaf C;arden None 0.89

~300 219.7

~2500 196.9 3.16

~ 500 174.3 Yes Yes Yes N/A N/A N/A N/A N/A Yes Yes IreS N/A

(~11anges a.

l~l'Ul\\";~ (nlile)

b. Clarden size (ft2) c.

gre frOnl true north

a. Is nearest occupied residence in same location as last census?

b. Is nearest nli1k aninlaJ in same location as last census?

c. Is nearest broadleaf garden in same location as last \\;t:usus?

'-"....ll.""......,..."..... frOll1 31

Table 2.1 Land Use Census Results I. Nearest Occupied Ilesidence Parameter a.Distance (nliJe)

b. Nunlber of Occupants c.Degrees fron] true north Sector N None Sector P None Sector Q None Sector R 1.11 2

]

II. Nearest lJnoccupiedl{esideIlce (closer than OCCUllic(}

residcIlce)

a. Distance (mile) 1.61 4.83 3.5 None Ill. N'earest lVIill" Animal a.Distance None None

'None None N/A 1.46

~4000 342.9 N/A N/A N/A None N/A N/A N/A None N/A N/A

'None a.'Distance (nliIe)

b. Garden (ft2) c.'Degrees fro111 true north

a. Is nearest occupied residence in saIne location as last census?

b. Is nearest milk ani111aI in saIne location as last census?

c. Is nearest broadleaf garden in saine location as last census?

N/A

v. (~ensus

(~onlI)arison 1\\'. 'N'earest Ilroadleaf Gardel1

"'--*... A'..*~.....L~....... froID last census, see attached table of Land lJse Census Chal1ges 32

SECTOIl.

Land Use Census Changes PARAMETER Rcason for Chan2c B

r E

F Nearest BroadleafGarden

• Nearest OccupiedR.esidence Nearest LJnoccupied Residence Nearest Occupied R.esidence 33 Clarification of address Residence is no\\v occupied Residence is now occupied by different individual. No house is unoccupied closer than occupied residence in this sector.

Residence is no\\v occupied by dHferent individual

2.9 Interlaboratory Comparison Results River Belld Station (RBS)

Environmental Laboratory analyzed interlaboratory comparison samples to fulfill the requirements of the aDeM Specifications 6.12.1., Radiological Environmental Monitoring Report, contains these results in Table 9.1. GGNS' review ofRBS' interlaboratory comparison indicated that lOO<Yo of results vvere \\vithil1 control linlits for accllracy., and 100% of resldts were witllin controllilnits for precisiol1.

3.0 Radiological Environmental Monitoring Program Summary 3.1 Program Results Summary Table 3.1 summarizes the REMP results.

GGNS personnel did not use values reported as less than the lower limit of detection <<LLD) wIlen determining ranges and means for indicator and control locations.

35

TABLE 3.1 Radiolog;ical Environnlental Monitoring Prog;ram Sunlnlary Name of Facility: Grand Gulf Nuclear Station Docket No: 50-416 Location of Facility: Claiborne County, l\\'1ississippi Reporting Period: January - Decelnber 2008 Sanlple Type Type & Number LLDb Indicator Locations Location with IIighest Annual Mean Control Locations Number of

( Units) of Analyses a Mean (F) c Mean (F) c Nonroutine

[Range]

(Range]

Results e l\\lean (F) c Location d

[Range]

j\\irPurticulates GB 161 0.01 0.028 ( 106/ 106 )

AS-1 PG 0.028 ( 53 / 53 )

0.027 ( 55 I 55 )

0 (pCi/rn3 )

[0.0"14 - 0.061 ]

(Sector G, 5.5 mi )

[ 0.014 - 0.058 ]

[ 0.006 - 0.056 ]

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 1-131 161 0.07

<LLD N/A N/A

<LLD 0

( pCi/n13 )

Inner TLl)s Gamma 51 (f)

1. 0.2 ( 51 /51 )

M-21 14.9 ( 4/4 )

N/A 0

(

)

[5.5-17.6]

K, 0.4 mi.)

[ 13.8-17.6]

()uter ll.ing TI...I)s Gamma 28 (f) 9.4 <. 28 /28 )

M-57 11.0 ( 4 /4)

N/A 0

( InRlQtr)

[ 5.1 12.3 ]

(Sector F, 4.5 mi.)

[ 10.1-12.3 ]

Interest l'Ll)s Gamn1a 28 (f) 9.2 (28 28 )

M-01

11. ] (4/4)

N/A 0

(

)

[ 7.2 12.0 ]

(Sector E, 3.5 nn. )

[ 10.2-12.0]

Control TLOs Gan1IDa 4

(f)

N/A N/A N/A 11.5 ( 4 /4 )

0

( nl"R/Qtr)

[9.9-13.6]

36

TABLE 3.1 RadioJogicaJEnvironmentaJ Monitoring Progranl Sunlmary Name of Facility: Grand Gulf Nuclear Station Docket No: 50-416 Location of Facility: Claiborne County, Mississippi Reporting Period: January - Decelnber 2008 Salnple Type Type & Number LLDb Indicator Location Location with Highest Annual Mean Control Locations Number of

( Units) of Analyses a Mean (F) c lVlean (F) c Nonroutine

[Range]

[Range]

Results e Mean (F) c Location d rRan2e 1 Surface Water H-3 24 3000 545 ( 3 119 )

Outfall 007 545 (3 12 )

<LLD 0

( pCi/l )

[ 242 - 902 ]

( Sector N,Radius 0.2 nli.)

- 902]

GS 10 1-131 15

<LLD N/A N/A

<LI.iD 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 NIA

<LLD 0

Z11-65 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

37

TABLE 3.1 Radiological Environmental Monitoring Program Sunll11ary Name of Facility: Grand Gulf Nuclear Station Docket No: 50-416 Location of Facility: Claiborne County, Mississippi Reporting Period: January - December 2008 Sanlple Type Type & Nunlber LLDb Indicator Locations Location with lIighest Annual Mean Control Locations Number of (Units) of Analyses a Mean (F) c l\\'lean ( F ) c Nonroutine

[Range]

[Range]

Results e Mean (F) c Location d

[ Ran2e ]

Groundwater H-3 2

2000

<LLD N/A N/A

<LLD 0

( pCi/l )

1-131 2

1

<LLD N/A N/A

<LLD 0

GS 4

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

SediIuent GS 4

(pCi/kg)

Cs-134 150

<LLD N/A N/A

<LLD 0

Cs-137 180

<LL"O N/A N/A

<LLD 0

38

TABLE 3.1 Radiolo ical Environmental Monitorin Name of Facility: Grand Gulf Nuclear Station Docket No: 50-416 Location of Facility: Claiborne County, Mississippi Reporting Period: January - Decenlber 2008 SalllpIe Type Type & Nunlber LLDb Indicator Location Location with Highest Annual Mean Control Locations Nunlber of

( Units) of Analyses a Mean (F) c

~lean (F) c Nonroutine

[Range]

[Range]

Results e Mean (F) c Location d rRange]

Fish as 3

(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

2n-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 Products 1-131 9

60

<LLD N/A N/A

<LLD 0

(pCi/kg) as 9

Cs-134 60

<LLD N/A N/A

<LLD 0

Cs-137 80

<LLD N/A N/A

<LLD 0

Vegetation 1-131 1

60

<LLD N/A N/A

<Ll.,D 0

(Special) pCi/Kg as 1

Cs-134 60

<LLD N/A N/A

<LLD 0

Cs-137 80

<LLD N/A N/A

<LLD 0

39

TABLE 3.1 Radiological Environmental Monitoring Program Sunlmary Name of Facility: Grand Gulf Nuclear Station Docket No: 50-416 Location of Facility: Claiborne County, Mississippi Reporting Period: January - December 2008 Sample Type Type & NUlnber LLDb Indicator Location Location with Highest Annual Mean Control Locations Nunlber of (Units) of Analyses a l\\tlean ( F ) c Mean (F) c Nonroutine

[Range]

[Range 1 Results e Mean (F) c Location d

[ Ran2e ]

Surface Water GS 4

(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 = Tritiuln; GS = Gamma scan.

b LLD = I~equired lower limit of detection based on GGNS ODCM Table 6.12.1-3.

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

d

""here applicable, locations are specified by name, distance fronl reactor site and Ineteorological 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 tiInes the preoperational value for the location.

f LI-JD is not defined in GGNS ODCM Table 6.12.1-3.

40 Radiological Monitoring Report Summary of Monitoring Results 41

TABLE OF CONTENTS TABLE 1.1 AIR PARTICULATE FILTER GROSS BETA AND 43 CHARCOAL CARTRIDGE IODINE-131 TABLE 1.2 AIR PARTICULATE FILTER GAMMA 52 TABLE 2.1 THERMOLUMINESCENT DOSIMETERS 53 TABLE 2.2 THERMOLUMINESCENT DOSIMETERS 54 TABLE 2.3 THERMOLUMINESCENT DOSIMETERS 55 TABLE 3.1 SURFACE WATER GAMMA 56 TABLE 3.2 SURFACE WATER TRITIUM 57 TABLE 4.1 GROUNDWATER GAMMA 58 TABLE 4.2 GROUNDWATER TRITIUM 59 TABLE 4.3 GROUNDWATER IODINE-131 60 TABLE 5.1 SEDIMENT 61 TABLE 6.1 FISH 62 TABLE 7.1 FOOD PRODUCTS 63 TABLE 8.1 SPECIAL SAMPLES 64 TABLE 9.1 INTERLABORATORY COMPARISON 65 42

Table 1.1 Sample Type: Air Particulate Filter and Radioiodine Cartridge Analysis: Gross Beta and 1-131 Units: pCi/m3 AIR SAMPLE AS-l PG - GGNS Nearest Community LLD (pCilm A 3)

LABID 20080005 20080063 20080120 20080175 20080212 20080238 20080299 20080314 20080334 20080349 20080380 20080389 20080413 20080421 20080442 20080494 20080535 20080546 AS...] PG START DATE 12/26/2007 1/2/2008 1/8/2008 1/15/2008 1/22/2008 1/29/2008 2/5/2008 2/12/2008 2/19/2008 2/26/2008 3/4/2008 3/11/2008 3/18/2008 3/25/2008 4/1/2008 4/8/2008 4/15/2008 4/22/2008 END DATE 1/2/2008 1/8/2008 1/15/2008 1/22/2008 1/29/2008 2/5/2008 2/12/2008 2/19/2008 2/26/2008 3/4/2008 3/11/2008 3/18/2008 3/25/2008 4/1/2008 4/8/2008 4/15/2008 4/22/2008 4/29/2008 43 0.07 1-131

<0.016

<0.017

<0.017

<0.012

<0.017

<0.018

<0.021

<0.027

<0.024

<0.022

<0.027

<0.018

<0.026

<0.019

<0.017

<0.015

<0.020

<0.027 0.01 GROSS BETA 0.030+/- 0.0011 0.030+/- 0.0012 0.029+/- 0.0012 0.030+/- 0.0011 0.035+/- 0.0012 0.027+/- 0.0010 0.029+/- 0.0010 0.024+/- 0.00II 0.023+/- 0.0009 0.022+/- 0.0009 0.025+/- 0.0010 0.026+/- 0.0010 0.021+/- 0.0010 0.030+/- 0.0011 0.020+/- 0.0009 0.019+/- 0.0009 0.024+/- 0.0010 0.022+/- 0.0010

LLD (pCi/m A 3)

LAB 10 20080591 20080596 20080616 20080619 20080657 20080670 20080706 20080735 20080797 20080820 20080844 20080856 20080894 20080919 20080941 20080947 20081032 20081018 20081050 20081081 AS-IPG START DATE 4/29/2008 5/6/2008 5/13/2008 5/20/2008 5/27/2008 6/3/2008 6/10/2008 6/17/2008 6/24/2008 7/1/2008 7/8/2008 7/15/2008 7/22/2008 7/29/2008 8/5/2008 8/12/2008 8/19/2008 8/26/2008 9/2/2008 9/9/2008 END DATE 5/6/2008 5/13/2008 5/20/2008 5/27/2008 6/3/2008 6/10/2008 6/17/2008 6/24/2008 7/112008 7/8/2008 7/15/2008 7/22/2008 7/29/2008 8/512008 8/12/2008 8/19/2008 8/26/2008 9/2/2008 9/9/2008 9/16/2008 44 0.07 1-131

<0.024

<0.024

<0.029

<0.022

<0.023

<0.023

<0.026

<0.020

<0.026

<0.024

<0.027

<0.020

<0.018

<0.019

<0.017

<0.016

<0.033

<0.043

<0.046

<0.032 0.01 GROSS BETA 0.027+/- 0.0011 0.022+1- 0.0011 0.024+/- 0.0010 0.023+/- 0.0010 0.026+/- 0.0010 0.014+/- 0.0008 0.015+/- 0.0009 0.033+/- 0.0012 0.019+/- 0.0010 0.028+/- 0.0011 0.024+/- 0.0010 0.042+/- 0.0013 0.031 +/- 0.0011 0.024+/- 0.0011 0.027+/- 0.0011 0.032+/- 0.0012 0.016+/- 0.0009 0.058+/- 0.0024 0.036+/- 0.0013 0.018+/- 0.0006

LLD (pCi/m 1\\3)

LABID 20081094 20081119 20081166 20081191 20081218 20081235 20081264 20081284 20081353 20081388 20081414 20081419 20081450 20081470 20081485 AS-IPG START DATE 9/16/2008 9/23/2008 9/30/2008 10/7/2008 10/14/2008 10/21/2008 10/28/2008 11/4/2008 11/12/2008 11/18/2008 11/25/2008 12/2/2008 12/9/2008 12/16/2008 12/23/2008 END DATE 9/23/2008 9/30/2008 10/7/2008 10/14/2008 10/21/2008 10/28/2008 11/4/2008 11/12/2008 11/18/2008 11/25/2008 12/2/2008 12/9/2008 12/16/2008 12/23/2008 12/30/2008 0.07 1-131

<0.022

<0.016

<0.016

<0.022

<0.016

<0.018

<0.013

<0.018

<0.025

<0.023

<0.028

<0.019

<0.017

<0.030

<0.022 0.01 GROSS BETA 0.034+/- 0.0008 0.044+/- 0.0012 0.042+/- 0.0012 0.021+/- 0.0009 0.033+/- 0.0011 0.030+/- 0.0011 0.041+/- 0.0012 0.028+/- 0.0009 0.025+/- 0.0010 0.033+/- 0.0011 0.039+/- 0.0012 0.025+/- 0.0010 0.019+/- 0.0008 0.028+/- 0.0012 0.027+/- 0.0010 Average:

Maximum:

Minimum:

45 0.028 0.058 0.014

j.\\ir*Particulate Filter and Il.adioiodine Cartridge and 1-131 SAMPL:E AS-3 61VA - G(;N*S - Control LLD (pCi/nl A 3)

LABID 20080006 20080064 20080121 20080176 20080213 20080239 20080300 20080315 20080335 20080350 20080381 20080390 20080414 20080422 20080443 20080495 20080536 20080547 AS-3 STARTDA'"fE 12/26/2007 1/2/2008 1/8/2008 1/15/2008 1/22/2008 1/29/2008 2/5/2008 2/12/2008 2/19/2008 2/26/2008 3/4/2008 3/11/2008 3/18/2008 3/25/2008 4/1/2008 4/8/2008 4/15/2008 4/22/2008 END DATE 1/2/2008 1/8/2008 1/15/2008 1/22/2008 1/29/2008 2/5/2008 2/12/2008 2/19/2008 2/26/2008 3/4/2008 3/11/2008 3/18/2008 3/25/2008 4/1/2008 4/8/2008 4/15/2008 4/22/2008 4/29/2008 46 0.07 1-131

<0.020

<0.022

<0.021

<0.013

<0.017

<0.055

<0.018

<0.016

<0.024

<0.026

<0.016

<0.025

<0.024

<0.019

<0.017

<0.026

<0.024

<0.029 0.01 GROSS BETA 0.030+/- 0.0011 0.027+/- 0.0011 0.026+/- 0.0011 0.032+/- 0.0012 0.034+/- 0.0011 0.056+/- 0.0026 0.030+/- 0.0011 0.023+/- 0.0009 0.023+/- 0.0010 0.022+/- 0.0009 0.025+/- 0.0010 0.024+/- 0.0010 0.021+/- 0.0010 0.024+/- 0.0010 0.018+/- 0.0009 0.021+/- 0.0010 0.023+/- 0.0010 0.023+/- 0.0010

LLD (pCi/n11\\3)

LABID 20080592 20080597 20080617 20080620 20080658 20080671 20080707 20080736 20080798 20080821 20080845 20080857 20080895 20080920 20080942 20080948 20081019 20081033 20081051 20081082 AS-3 START DATE 4/29/2008 5/6/2008 5/13/2008 5/20/2008 5/27/2008 6/3/2008 6/10/2008 6/17/2008 6/24/2008 7/1/2008 7/8/2008 7/15/2008 7/22/2008 7/29/2008 8/5/2008 8/12/2008 8/26/2008 8/19/2008 9/2/2008 9/9/2008 END DATE 5/6/2008 5/13/2008 5/20/2008 5/27/2008 6/3/2008 6/10/2008 6/17/2008 6/24/2008 7/1/2008 7/8/2008 7/15/2008 7/22/2008 7/29/2008 8/5/2008 8/12/2008 8/19/2008 9/2/2008 8/26/2008 9/9/2008 9/11/2008 47 0.07 1-131

<0.027

<0.025

<0.031

<0.070

<0.055

<0.024

<0.029

<0.020

<0.024

<0.024

<0.020

<0.016

<0.020

<0.017

<0.017

<0.014

<0.025

<0.037

<0.068

<0.069 0.01 GROSS BETA 0.025+/- 0.0011 0.021+/- 0.0011 0.023+/- 0.0010 0.006+/- 0.0007 0.052+/- 0.0033 0.012+/- 0.0008 0.017+/- 0.0009 0.032+/- 0.0011 0.022+/- 0.0010 0.029+/- 0.0011 0.023+/- 0.0010 0.040+/- 0.0013 0.030+/- 0.0011 0.021+/- 0.0011 0.027+/- 0.0011 0.038+/- 0.0013 0.029+/- 0.0011 0.017+/- 0.0009 0.028+/- 0.0018 0.024+/- 0.0023

LLD (pCi/nl"3)

LABID 20081084 20081085 20081095 20081120 20081167 20081192 20081219 20081236 20081265 20081285 20081354 20081389 20081415 20081420 20081451 20081471 20081486 Average:

Maximum:

Minimum:

AS-3 START DATE 9/12/2008 9/10/2008 9/16/2008 9/23/2008 9/30/2008 10/7/2008 10/14/2008 10/21/2008 10/28/2008 11/4/2008 11/11/2008 11/18/2008 11/25/2008 12/2/2008 12/9/2008 12/16/2008 12/22/2008 END DATE 9/16/2008 9/16/2008 9/23/2008 9/30/2008 10/7/2008 10/14/2008 10/21/2008 10/28/2008 11/4/2008 11/12/2008 11/18/2008 11/25/2008 12/2/2008 12/9/2008 12/16/2008 12/22/2008 12/30/2008 48 0.07 1-131

<0.044

<0.034

<0.025

<0.016

<0.019

<0.017

<0.016

<0.016

<0.020

<0.019

<0.022

<0.024

<0.021

<0.020

<0.017

<0.032

<0.021 0.01 GROSS BETA 0.021+/- 0.0010 0.018+/- 0.0007 0.035+/- 0.0008 0.044+/- 0.0012 0.043+/- 0.0012 0.022+/- 0.0009 0.032+/- 0.0011 0.027+/- 0.0010 0.041+/- 0.0012 0.025+/- 0.0010 0.026+/- 0.0010 0.034+/- 0.0011 0.041+/- 0.0012 0.027+/- 0.0010 0.021+/- 0.0009 0.025+/- 0.0012 0.030+/- 0.0010 0.027 0.056 0.006

1.1 Salnple Analysis:

lJnits:

Air l)articulate Filter and l~adioiodineCartridge Beta and 1-131 AIR SA:M:PLE AS (;GNS - Indicator LLD (pCilIll"3)

LA.BID 20080007 20080065 20080122 20080177 20080214 20080240 20080301 20080316 20080336 20080351 20080382 20080391 20080415 20080423 20080444 20080496 20080537 20080548 AS-7UH START DATE 12/26/2007 1/2/2008 1/8/2008 1/15/2008 1/22/2008 1/29/2008 2/5/2008 2/12/2008 2/19/2008 2/26/2008 3/4/2008 3/11/2008 3/18/2008 3/25/2008 4/1/2008 4/8/2008 4/15/2008 4/22/2008 END DATE 1/2/2008 1/8/2008 1/15/2008 1/22/2008 1/29/2008 2/5/2008 2/12/2008 2/19/2008 2/26/2008 3/4/2008 3/11/2008 3/18/2008 3/25/2008 4/1/2008 4/8/2008 4/15/2008 4/22/2008 4/29/2008 49 0.07 1-131

<0.017

<0.022

<0.022

<0.018

<0.017

<0.020

<0.018

<0.019

<0.028

<0.030

<0.022

<0.017

<0.023

<0.017

<0.013

<0.024

<0.023

<0.024 0.01 GROSS BETA 0.031+/- 0.0011 0.029+/- 0.0011 0.025+/- 0.0011 0.028+/- 0.0011 0.037+/- 0.0012 0.024+/- 0.0010 0.031+/- 0.0011 0.030+/- 0.0011 0.021+/- 0.0009 0.024+/- 0.0010 0.025+/- 0.0010 0.026+/- 0.0010 0.021+/- 0.0010 0.027+/- 0.0010 0.020+/- 0.0010 0.020+/- 0.0009 0.024+/- 0.0010 0.023+/- 0.0010

LLD (pCi/m"3)

AS-7UII 0.07 0.01 LABID START DATE END DATE 1-131 GROSS BETA 20080593 4/29/2008 5/6/2008

<0.025 0.025+/- 0.0011 20080598 5/6/2008 5/13/2008

<0.019 0.021+/- 0.0011 20080618 5/13/2008 5/20/2008

<0.024 0.023+/- 0.0010 20080621 5/20/2008 5/27/2008

<0.020 0.023+/- 0.0010 20080659 5/27/2008 6/3/2008

<0.025 0.022+/- 0.0010 20080672 6/3/2008 6/10/2008

<0.024 0.014+/- 0.0008 20080708 6/10/2008 6/17/2008

<0.028 0.016+/- 0.0009 20080737 6/17/2008 6/24/2008

<0.061 0.061+/- 0.0030 20080799 6/24/2008 7/1/2008

<0.022 0.018+/- 0.0009 20080822 7/1/2008 7/8/2008

<0.023 0.027+/- 0.0011 20080846 7/8/2008 7/15/2008

<0.022 0.023+/- 0.0010 20080858 7/15/2008 7/22/2008

<0.014 0.043+/- 0.0013 20080896 7/22/2008 7/29/2008

<0.018 0.032+/- 0.0012 20080921 7/29/2008 8/5/2008

<0.017 0.022+/- 0.0011 20080943 8/5/2008 8/12/2008

<0.012 0.031+/- 0.0011 20080949 8/12/2008 8/19/2008

<0.017 0.032+/- 0.0013 20081020 8/26/2008 9/2/2008

<0.028 0.030+/- 0.0012 20081034 8/19/2008 8/26/2008

<0.031 0.017+/- 0.0009 20081052 9/2/2008 9/9/2008

<0.029 0.019+/- 0.0007 20081083 9/9/2008 9/16/2008

<0.026 0.018+/- 0.0006 50

LLD (pCi/m A 3)

AS-7UH 0.07 0.01 LABID START DATE END DATE 1-131 GROSS BETA 20081096 9/16/2008 9/23/2008

<0.025 0.032+/- 0.0008 20081121 9/23/2008 9/30/2008

<0.019 0.049+/- 0.0013 20081168 9/30/2008 10/7/2008

<0.016 0.045+/- 0.0012 20081193 10/7/2008 10/14/2008

<0.021 0.021+/- 0.0009 20081220 10/14/2008 10/21/2008

<0.019 0.033+1- 0.0011 20081237 10/21/2008 10/28/2008

<0.016 0.028+1- 0.0010 20081266 10/28/2008 11/412008

<0.018 0.043+1- 0.0012 20081286 11/4/2008 11/12/2008

<0.020 0.025+/- 0.0010 20081355 11/11/2008 11/18/2008

<0.022 0.024+1- 0.0009 20081390 11/18/2008 11/25/2008

<0.025 0.034+/- 0.0011 20081416 11/25/2008 12/2/2008

<0.027 0.039+/- 0.0012 20081421 12/2/2008 12/9/2008

<0.017 0.023+/- 0.0010 20081452 12/9/2008 12/16/2008

<0.015 0.019+/- 0.0008 20081472 12/16/2008 12/23/2008

<0.024 0.026+/- 0.0011 20081487 12/23/2008 12/30/2008

<0.025 0.029+1- 0.0010 Average:

0.027 Maximum:

0.061 Minimum:

0.014 51

l~able 1.2 Ar'R ~p}\\I~TICl_LLAT.EFI.LT'ER Q-UAI~TERLY' COM'POSITES (GA-Ml\\1A) - G-GNS LLD (pCi/nlI\\3) 0.05 0.06 LABID LOCATION DATE CS-134 CS-137 20080452 AS-1 PG 2/9/2008

< 0.004

< 0.003 20080453 AS-361VA 2/9/2008

< 0.005

< 0.004 20080454 AS-7 DR 2/9/2008

< 0.004

< 0.004 20080807 AS-1 PG 5/13/2008

< 0.004

< 0.003 20080808 AS-361VA 5/13/2008

< 0.005

< 0.004 20080809 AS-7 DR 5/13/2008

< 0.005

< 0.004 20081149 AS-1 PG 8/15/2008

< 0.006

< 0.005 20081150 AS-361VA 8/16/2008

< 0.005

< 0.004 20081151 AS-7 DR 8/15/2008

< 0.004

< 0.003 20081493 AS-1 PG 11/14/2008

< 0.002

< 0.001 20081494 AS-361VA 11/15/2008

< 0.005

< 0.003 20081495 AS-7 DR 11/14/2008

< 0.004

< 0.004 52

Table 2.1 Sanlple 'rype: Thermoluminescent Dosimeters Analysis: Gamma Dose lJnits: mrem/Qtr Inner Ring - Within General Area of Site Boundary (ODCM Specifications)

Station 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Annual Mean M-16 9.8 10.8 10.0 9.8 10.1 M-19 8.6 10.3 9.9 9.0 9.5 M-21 14.1 17.6 14.1 13.8 14.9 M-22 9.4 10.6 8.7 8.2 9.2 M-23 7.6 6.9 7.3 M-25 7.5 7.5 M-28 9.3 10.9 10.5 10.6 10.3 M-94 9.6 11.0 10.7 8.6 10.0 M-95 7.9 8.2 8.1 6.3 7.6 M-96 7.2 7.9 7.7 6.5 7.3 M-97 7.4 6.8 6.7 5.5 6.6 M-98 12.3 12.9 13.4 11.9 12.7 M-99 14.9 15.3 14.7 13.0 14.5 M-100 11.5 12.2 12.2 11.5 11.8

• • NoData

• Location \\tvith highest annual nlean Outer Ring - Approximately Three (3) to Five (5) Miles from the Site (ODCM Specifications)

Station 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Annual Mean M-36 8.6 9.0 8.3 7.7 8.4 M-40 6.3 7.5 7.3 5.1 6.6 M-48 8.3 10.5 9.3 9.6 9.4 M-49 9.4 11.8 10.3 10.0 10.4 M-50 9.6 10.3 8.5 9.2 9.4 M-55 10.2 11.5 10.8 10.8 10.8 M-57

• 10.1 12.3 11.1 10.5 11.0

• Location \\vith highest annual mean.

53

Table 2.2 Sanlple 'rype: Thermoluminescent :Dosimeters Analysis: Gamma Dose Units: mrem/Qtr Special Interest Areas - Population Centers & Schools (ODCM Specifications)

Station 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Annual Mean M-Ol*

10.2 12.0 11.2 10.9 11.1 M-07 9.5 10.3 9.1 8.4 9.3 M-09 9.5 10.5 9.5 9.3 9.7 M-I0 11.9 9.4 7.7 7.5 9.1 M-33 8.2 8.4 7.6 7.2 7.9 M-38 9.0 8.9 8.6 8.1 8.6 M-39 8.4 9.0 8.5 8.0 8.5

• Location,vith higbest annual mean.

54

Table 2.3 Sanlple 'Type: Thermoluminescent })osimeters Analysis: GammaDose Units: mrem/Qtr Special Interest Areas - Control (ODCM Specifications)

Station 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Annual Mean M-14 10.6 11.9 13.6 9.9 11.5 55

Surface \\Vater (iamn1a Isotopic lJnits: pCi/1 SLJRF1\\CE \\Vr\\TEll SAl\\'1PLES (Gf\\l\\fl\\lA) - CC;NS 1115/2008

< 12.21

< 11.32

< 18.80

< 11.90

< 26.92

< 11.46

< 18.12

< 14.12

< 13.04 LLD (llCi/l)

LAB ID LOCATION 20080158 MR DOWN DATE 15 MN-54 15 CO-58 30 FE-59 15 CO-60 30 ZN-65 15 NB-95 30 ZR-95 15 1-131 15 CS-134 18 CS-137

< 11.92 60 BA-140

< 33.36 15 LA-140

< 12.22 20080160 MRUP 20080460 MR DOWN 20080462 MRUP 20080815 MR DOWN 20080817 MRUP 20081214 MR DOWN 20081216 MRUP 20081374 AnnualSW during DC 1115/2008

< 5.31 4/8/2008

< 9.18 4/8/2008

< 7.84 7/8/2008

< 13.53 7/8/2008

< 7.96 10/21/2008

< 6.62 10/21/2008

< 8.11 11/19/2008

< 6.80

< 9.10

< 19.00

< 8.77

< 21.27

< 11.66

< 21.01

< 12.68

< 10.01

< 7.85

< 15.46

< 6.63

< 18.15

< 9.31

< 12.03

< 12.92

< 7.73

< 5.84

< 12.14

< 6.22

< 19.20

< 8.51

< 13.44

< 11.94

< 8.57

< 11.03

< 18.09

< 10.66

< 21.45

< 13.38

< 19.16

< 13.41

< 8.95

< 6.15

< 19.00

< 8.77

< 23.36

< 10.27

< 17.74

< 13.83

< 8.55

< 7.50

< 13.34

< 9.34

< 15.62

< 10.10

< 14.12

< 7.72

< 10.12

< 6.57

< 11.32

< 7.62

< 24.14

< 10.36

< 16.59

< 11.61

< 9.85

< 6.86

< 13.48

< 7.67

< 17.18

< 7.31

< 15.44

< 14.55

< 7.83

< 8.50

< 8.00

< 6.97

< 11.03

< 10.25

< 9.38

< 6.01

< 6.70

< 45.41

< 36.17

< 27.50

< 42.41

< 49.18

< 31.86

< 33.20

< 28.96

< 13.11

< 11.80

< 12.85

< 11.37

< 10.27

< 12.00

< 11.05

< 11.67 20081376 Annual SW

• 11119/2008

< 6.75

< 7.91

< 14.07

< 7.42

< 12.87

< 9.89 during DC GO "GG" indicates duplicate sanlple.* Annual Sample collected during liquid discharge 56

< 10.55

< 14.19

< 8.72

< 7.53

< 34.36

< 9.79

Table 3.2 Sanlple 'fype: Surface \\Vnter Analysis: "I'rithnn Units: pei/)

SU"RFACE WATER SAM~PLES(TRITIU'M) - GGN'S LLD (pCi/l)

LABID 20080159 20080161 20080162 20080163 20080461 20080463 20080816 20080818 20081215 20081217 20081375 20081381 20080062 20080282 20080364 20080446 20080590 20080662 20080819 20080922 20081035 20081154 20081287 20081445 SURFACE \\VATERH-3 LOCATION MRDOWN MRUP MRDOWNGG MRUPGG MRDOWN MRUP MRDOWN MRUP MRDOWN MRUP MRDOWN*

MRDOWN*GG OUTFALL 007 OUTFALL 007 OUTFALL 007 OUTFALL 007 OUTFALL 007 OUTFALL 007 OUTFALL 007 OUTFALL 007 OUTFALL 007 OUTFALL 007 OUTFALL 007 OUTFALL 007 DATE 1/15/2008 1/15/2008 1/15/2008 1/15/2008 4/8/2008 4/8/2008 7/8/2008 7/8/2008 10/21/2008 10/21/2008 11/19/2008 11/19/2008 1/7/2008 2/7/2008 3/6/2008 4/4/2008 5/6/2008 6/4/2008 7/8/2008 8/4/2008 9/9/2008 10/6/2008 11/10/2008 12/11/2008 3000 TRITIUM

< 579

< 583

< 575

< 583

< 616

< 614

< 577

< 595

< 572

< 558

< 580

< 580

< 570

< 574

< 568

< 579

< 575 242+/- 240.50

< 576 490-/+ 255.38

< 576

< 564

< 558 902+/- 262.66

• Annual Sample collected during liquid discharge "GG" indicates duplicate sample.

57

Groundlvater Ganllua Isotopic pC~i/1 LLD (pCi/l) 15 15 30 15 30 15 30 15 15 18 60 15 LABID 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 20081473 PGWELLGG 12/15/2008

<4.97

<5.30

<11.96

<4.04

<10.06

<6.18

<8.70

<14.99

<5.30

<5.66

<34.81

<13.24 20081475 PGWELL 12/15/2008

<4.68

<4.43

<11.11

<5.16

<8.05

<6.50

<9.01

<13.65

<4.72

<4.57

<32.22

<11.83 20081477 CONSTWELL3 12/16/2008

<4.47

<3.97

<9.54

<4.13

<9.86

<5.69

<8.67

<14.99

<4.80

<4.36

<28.85

<8.70 GG 20081479 CONSTWELL3 12/16/2008

<4.39

<4.85

<9.66

<3.61

<8.79

<6.36

<8.01

<13.52

<4.21

<4.23

<28.82

<10.76 "GG" indicates duplicate sample.

58

Table 4.2 Sanlple 'fype: C;roundwater Analysis: rrrititHl1 Units: pei!1 GROUND WATER SAM~PLES ( TRITIUM) - GGNS LLD (pCi/l)

LAB ID LOCATION 20081476 PGWELL 20081480 CONSTWELL3 DATE 12/15/2008 12/16/2008 59 2000 TRITIUM

<565.77

<568.07

T'able 4.3 Sanlple 'rype: (;'round."vater Analysis: Iodine lJnits: pCi/1 GR.OUND WATER SAMI~LES(Iodine-131) - GGNS LLD(pCi/l)

LAB ID LOCATION 20081476 PGWELL 20081480 CONSTWELL3 D..\\TE 12/15/2008 12/16/2008 60 1.0 1-131 0.898 0.858

Table 5.1.

Sanlple rrype: Sediment Analysis: Gamma lsotopic Units: pCi/kg S:EDII\\1'EN-T SAM.PLES (GAMl\\IA) - GC;N'S LLD (pCi/KG) 150 180 LABID LOCATION DATE CS-134 CS-137 20081377 SEDHAM 11/19/2008

<30.16

<36.36 20081378 SEDHAMGG 11/19/2008

<23.07

<31.56 20081379 SEDCONT 11/19/2008

<20.00

<20.63 20081380 SEDBAR 11/19/2008

<36.37

<41.13 "GG" indicates duplicate sample.

61

'fable 6.1 S~t\\M]~LES (GA.MMA.) - GGNS LLD (pCi/kg) 130 130 260 130 260 130 150 LABID LOCATION DATE MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 20081100 FISHUP 9/17/2008

<23.19

<27.75

<75.84

<30.46

<81.27

<24.79

<27.27 20081101 FISHDOWN 9/17/2008

<23.68

<21.09

<52.99

<32.50

<62.92

<18.01

<17.21 20081102 FISHUP GG 9/17/2008

<23.68

<22.54

<56.83

<28.56

<47.27

<19.69

<20.89 62

Food I)roducts lodine-131 and Ganllna Isotopic SAMPLES (GA.MMA) - GG*NS LLD (pCi/kg) 60 60 80 LABID LOCATION DATE 1-131 CS-134 CS-137 20080134 VEG-CON1' 1/15/2008

<59.89

<53.95

<45.81 20080135 VEG-J 1/15/2008

<47.55

<39.62

<43.92 20080136 VEG-JGG 1/15/2008

<55.31

<43.96

<49.11 20080464 VEG-CONT 4/8/2008

<44.48

<38.77

<31.78 20080465 VEG-J 4/8/2008

<50.34

<32.29

<26.60 20080849 VEG-CONT 7/23/2008

<58.98

<54.99

<47.29 20080850 VEG-J 7/23/2008

<54.98

<59.67

<41.74 20081267 VEG-CONT 10/31/2008

<55.59

<33.38

<43.57 20081268 VEG-J 11/4/2008

<57.08

<59.68

<65.56 "GG" indicates duplicate san1ple.

63

'fable 8.1 Special Samples Gal11ma Isotopic SPI~CIAL VEG*ETATION SAMPLES (GA.MMA) - GGNS LLD (pCi/kg) 60 60 80 LABID LOCATION DATE 1-131 CS-134 CS-137 20081043 VEG-J 9/10/2008

<55.83

<32.46

<42.14 SP}~CIAL SU]{I~ACEWA~I~E'R SAMP'LES (GAMMA) - GGN"S LLD (pCi/l) 15 15 30 15 30 15 30 15 15 18 60 15 LABID LOCATION DATE

)\\'IN-54 CO-58 FE-59 CO-60 ZN-65 NB-95 ZR-95 1-131 CS-134 CS-137 BI\\-140 LA-140 20080665 OUTFALL 007 6/6/2008

<6.68

<8.82

<20.19

<7.91

<20.77

<6.69

<17.69

<14.51

<8.45 11.13

<33.07

<6.24 20080742 OUTFALL 007 6/24/2008

<8.43

<7.63

<13.25

<8.29

<12.14

<8.07

<15.34

<13.81

<8.54

< 6.77

<34.18

<12.31 20081036 OUTFALL 007 9/9/2008

<8.30

<7.85

<22.85

<8.22

<23.14

<11.09

<14.55

<10.73

<9.73

< 9.98

<35.52

<11.92 20081288 OUTFALL 007 11110/2008

<9.58

<7.22

<13.09

<8.62

< 20.07

<8.51

<15.13

<10.54

<9.67

<10.42

<28.57

<12.56 64

Table 9.1 Sample Type: Interlaboratory Comparison Analysis: Gross Beta, Tritium, Iodine-131 and Gamma Isotopic RIVER BEND STATION ENVIRONMENTAL (CROSS-CHECK) PROGRAM PARTICIPATION RESULTS Sample Type Analytics #

Date Analysis Known value RBS Value RBS N-RBS N-(units)

(a)

DEV RANGE (c)

(b)

Face Loaded F&J Charcoal E5943-125 6/19/2008 1-131 8.45E+01 8.23E+01

-0.60 0.22 Cartridge Gross Beta in 1 BETA 1.49E+02 1.55E+02 0.45 0.25 Liter Water E5942-125 6/19/2008 E5941-125 6/19/2008 Cr-51 1.88E+02 1.70E+02

-2.22 2.16 (pCilliter)

Mn-54 1.84E+02 2.04E+02 2.50 0.21 Co-58 8.42E+01 8.55E+01 0.34 0.42 Fe-59 1.25E+02 1.40E+02 2.69 0.71 Co-50 1.42E+02 1.47E+02 0.77 0.19 Zn-65 1.72E+02 1.76E+02 0.60 0.49 1-131 4.53E+01 4.86E+01 1.68 1.87 Cs-134 1.04E+02 1.04E+02

-0.08 0.30 Cs-137 1.58E+02 1.63E+02 0.77 0.41 Gamma in Water Ce-141 2.37E+02 2.36E+02

-0.14 0.24 Sample Tritium in Water E6263-125 9/18/2008 H-3 1.14E+04 1.18E+04 0.49 0.09 Gross Beta on 47mm Air E6264-125 9/18/2008 BETA 9.51E+01 8.52E+01

-1.39 0.01 Particulate Filter Gamma Emitters E6265-125 9/18/08 Cr-51 2.49E+02 2.50E+02 0.07 0.79 on 47 mm (pCilfiIter)

Mn-54 9.84E+01 1.07E+02 2.11 0.23 Co-58 1.06E+02 1.05E+02

-0.12 0.28 Fe-59 8.56E+01 9.52E+01 2.59 0.44 Co-60 1.39E+02 1.40E+02 0.16 0.19 Zn-65 1.89E+02 1.90E+02 0.14 0.44 Cs-134 1.37E+02 1.33E+02

-0.76 0.16 Cs-137 9.60E+01 9.66E+01 0.14 0.38 Ce-141 9.55E+01 9.77E+01 0.54 0.25 Gamma Emitters in 1 E6266-125 9/18/2008 Cr-51 8.33E-01 8.66E-01 0.95 0.42 Liter Soil (pCilgram)

Mn-54 3.29E-01 3.69E-01 2.92 0.17 Co-58 3.53E-01 3.66E-01 0.88 0.25 Fe-59 2.86E-01 3.15E-01 2.40 0.47 Co-60 4.64E-01 4.78E-01 0.75 0.21 Zn-65 6.32E-01 6.79E-01 1.78 0.16 Cs-134 4.59E-01 4.61 E-01 0.09 0.14 Cs-137 4.16E-01 4.47E-01 1.82 0.21 Ce-141 3.19E-01 3.43E-01 1.81 0.18 65

RIVER BEND STATION ENVIRONMENTAL (CROSS-CHECK) PROGRAM PARTICIPATION RESULTS Sample Type Analytics #

Date Analysis Known RBS Value RBS N-RBS N-(units)

Value (a)

DEV RANGE (c)

(b)

Gamma E5944-125 6/19/2008 Cr-51 1.38E+02 1.42E+02 0.61 2.74 Emitters in Milk (pCilliter)

Mn-54 1.35E+02 1.49E+02 2.45 0.31 Co-58 6.19E+01 6.21E+01 0.09 0.84 Fe-59 9.17E+01 9.87E+01 1.75 0.67 Co-60 1.04E+02 1.07E+02 0.68 0.46 Zn-65 1.27E+02 1.34E+02 1.30 0.34 1-131 7.14E+01 7.12E+01

-0.07 0.58 Cs-134 7.67E+01 7.80E+01 0.40 0.45 Cs-137 1.16E+02 1.19E+02 0.67 0.21 Ce-141 1.74E+02 1.77E+02 0.34 0.41 NOTES:

(a) The known value as determined by Analytics.

(b) The normalized deviation from the "known" value is computed from the deviation and the standard error of the mean; +/-2.00 is the warning limit and +/-3.00 is the control limit. This is a measure of accuracy of the analytical methods.

(c) The normalized range is computed from the mean range, the control limit, and the standard error of the range: +2.000 is the warning limit and +3.000 is the control limit. This is a measure of precision of the analytical methods.

IOO~tQ of interlaboratory crosscheck results were within control limits for accuracy and 100% were within control lituits for precision.

66