GNRO-2006/00017, Annual Radiological Environmental Operating Report (AREOR)

Annual Radiological Environmental Operating Report (AREOR)

ML062960151
Person / Time
Site:	Grand Gulf
Issue date:	04/26/2006
From:	Bottemiller C Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
GNRO-2006/00017
Download: ML062960151 (67)

Text

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-Er2tWg-y Entergy Operations, Inc.

Waterloo Road P.O. Box 756 Port Gibson MS 39150 Tel 601 437 6299 Charles A. Bottemiller Manager Plant Licensing GNRO-2006/00017 April 26, 2006 U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Attention: Document Control Desk

Subject:

Grand Gulf Nuclear Station (GGNS) 2005 Annual Radiological Environmental Operating Report (AREOR)

Grand Gulf Nuclear Station Docket No. 50-416 License No. NPF-29 Ladies & Gentlemen:

In accordance with the Grand Gulf Nuclear Station Unit 1 Technical Specification 5.6.2, attached is the Annual Radioloaical Environmental ODeratina Report for the period January 1, 2005 through December 31,2005.

This letter does not contain any commitments. If you have questions or require additional information concerning these reports, please contact Mr. Richard Scarbrough (601) 437-6316, or this office at (601) 437-6685.

Yours truly, CAB/MJ L attachment: 2005 Annual Radiological Environmental Operating Report cc: (See Next Page)

April 26, 2006 GNRO-2006-00017 Page 2 of 2 cc: NRC Senior Resident Inspector Grand Gulf Nuclear Station Port Gibson, MS 39150 U. S. Nuclear Regulatory Commission ATTN: Dr. Bruce S. Mallet (wI2)

Regional Administrator, Region IV 61 1 Ryan Plaza Drive, Suite 400 Arlington, TX 7601 1-4005 U. S. Nuclear Regulatory Commission ATTN: Mr. Bhalchandra Vaidya, NRRIDLPM (w12)

ATTN: ADDRESSEE ONLY ATTN: U. S. Postal Delivery Address Only Mail Stop OWFNI 0-7D1A Washington, DC 20555-0001 Mr. D. E. Levanway (Wise Carter)

Mr. L. J. Smith (Wise Carter)

Mr. N. S. Reynolds Mr. H. L. Thomas

ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT January 1,2005-December 31,2005 Prepared By Reviewed By Approved By

TABLE OF CONTENTS

SUMMARY

6 1.O INTRODUCTION 11 1.1 Radiological Environmental Monitoring Program 11 1.2 Pathways Monitored 11 1.3 Land Use Census 12 2.0 INTERPRETATION AND TRENDS OF RESULTS 23 2.1 Air Particulate and Radioiodine Sample Results 23 2.2 Thermoluminescent Dosimetry (TLD) Sample Results 23 2.3 Water Sample Results 25 2.4 Sediment Sample Results 25 2.5 Milk Sample Results 26 2.6 Fish Sample Results 26 2.7 Food Product Sample Results 26 2.8 Land Use Census Results 27 2.9 lnterlaboratory Comparison Results 33 3.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

34 3.1 Program Results Summary 34 3

i

LIST OF TABLES TABLE 1.1 RADIOLOGICAL ENVIRONMENTAL SAMPLING PROGRAM 13 TABLE 2.1 LANDUSECENSUSRESULTS 28 TABLE 3.1 RADIOLOGICAL ENVIRONMENTAL MONITORING 35 PROGRAM

SUMMARY

3

LIST OF FIGURES FIGURE 1-1 EXPOSURE PATHWAYS 20 FIGURE 1-2 SAMPLE COLLECTION SITES - NEAR FIELD 21 FIGURE 1-3 SAMPLE COLLECTION SITES - FAR FIELD 22 FIGURE 2-1 TLD READINGS 24 4

LIST OF ATTACHMENTS ATTACHMENT 1 RADIOLOGICAL MONITORING REPORT 41

SUMMARY

OF MONITORING RESULTS 5

Summary The Annual Radiological Environmental Operating Report presents data obtained through analyses of environmental samples collected for Grand Gulf Nuclear Stations (GGNS)

Radiological Environmental Monitoring Program (REMP) for the period January 1, 2005 through December 3 1, 2005. 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 venison. 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 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 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.

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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 ODCM 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 Chernobyl 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 of Health (MSDH), Division of Radiological Health.

The NRC TLD Network Program was discontinued in 1998. Historically these results have compared favorably to those from the GGNS REMP. GGNS TLD results remain 4milar to the historical average and continue to verify that plant operation is not affecting the ambient radiation levelc in the environment.

The MSDH m d the GGNS REMP entail wnilar radiological environmental monitoring program requirement\. These programs include concurrent air \ampling and splitting or sharing sample media such as water, \ediment, fish and food products. Both program5 have obtained Gmilar rewlts over previous years. The results of MSDH5 monitoring program for the reporting period compared favorably with the GGNS REMP and did not indicate elevated levels of radiation or radioactivity build-up attributed to plant operations.

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Sample Deviations

+ Milk The REMP did not include milk sampling within five miles (8 km) of GGNS in the current year due to unavailability. ODCM Specifications require collection of milk samples if available commercially within 8 km ( 5 miles) of the plant. GGNS personnel collected vegetation samples to monitor the ingestion pathway, as specified in ODCM Specifications Table 6.12.1-1, because of milk unavailability.

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

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+ Air Samples The following air sample locations had reduced run times due to weather-related outages or mechanical problems. As described in footnote (a) to ODCM Specification Table 6.12.1- 1, deviations from the required sampling schedule are permitted due to malfunction of sampling equipment and other legitimate reasons.

Out-of-Sample Date In Date Out RunTime service Comments Location hours hours AS-1 PG 01111105 01118/05 158.06 9.92 Power Outage AS-7 UH 01111105 01118/05 165.72 2.25 Power Outage AS-7 UH 01118/05 01125105 167.19 0.81 Power Outage AS-7 UH 02/01105 02/08/05 168.03 1.82 Power Outage AS-7 UH 04/05/05 04112/05 167.34 0.68 Power Outage AS-1 PG 05/24/05 05/31105 167.30 0.67 Power Outage AS-7 UH 05/24/05 05/31105 168.1 1 1.41 Power Outage AS-7 UH 07/05/05 07112/05 162.79 1.58 Power Outage AS-1 PG 07/05/05 07112/05 162.44 1.48 Power Outage AS-3 61VA 08/23/05 08/30/05 154.60 12.22 Hurricane Katrina AS-1 PG 08/23/05 08/30/05 149.54 18.69 Hurricane Katrina AS-7 UH 08/23/05 08/30/05 148.01 20.92 Hurricane Katrina AS-3 61VA 08130105 09/06/05 163.21 4.66 Hurricane Katrina AS-1 PG 08/30/05 09/06/05 45.15 135.67 Hurricane Katrina AS-7 UH 08/30/05 09/06/05 92.41 73.97 Hurricane Katrina AS-1 PG 09/20/05 09/27/05 167.70 0.95 Hurricane Rita AS-7 UH 11/22/05 11/29/05 163.67 1.51 Power Outage AS-3 61UA 11/29/05 12/06/05 168.28 1.14 Planned Maintenance AS-1 PG 11/29/05 12/06/05 167.64 0.86 Planned Maintenance AS-7 UH 11/29/05 12/06/05 167.46 1.09 Planned Maintenance Based on the sample collection period reductions, air samples were collected the following percentages of the available time:

AS-1 PG 98.1Yo AS-3 61UA 99.8%

AS-7 UH 98.8%

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+ Missed Samples There were no missed samples in the reporting period.

Unavailable Results GGNS received analytical results in adequate time for inclusion in this report. In addition. GGNS' review identified no missing results.

Program Modifications In December 2005 one surfrice water sample location: Storm Drain System OUTFALL 007

[Sector N, Radius 0.2 Miles], was added to the REMP. The sampling requirement at this location became effective in January 2006.

Attachments contains results of TLD, air, water, sediment, fish, food products and special samples collected. TLDs were analyzed by Waterford-3 Dosimetry. All remaining samples were analyzed by River Bend Station's (RBSj Environmental Laboratory. Attaclarnent 1 also contains WBS' results from participation i n the interlaboratory comparison program.

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 endangerment to human health or the environment. The REMP is designed for:

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

0 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.

0 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 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 5hown 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.

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1.3 Land Use Census GGNS personnel conduct a land use census biannually, as required by ODCM Specification 6.12.2. 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 ODCM. 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 of greater than 50 m3 (500 ft?) producing broadleaf vegetation.

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

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

Y Nearest permanent residence Y Nearest unoccupied residence I Nearest garden and approximate size F Nearest milking animal.

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

0 Comparing current land use census results to previous results.

Contacting the Claiborne County Agent for verification of nearest dairy animals.

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Table 1.1 Radiological Enviroiimental Sampling Program Exposure Requirement Sample Point Description, Sampling and Type and Frequency Pathway Distance and Direction Collection Frequency Of Analyses Airborne -

Radioiodine and Particulates 1 sample close to the SITE AS-7 U H (Sector H, Radius 0.5 Miles) - Continuous sampler operation Radioiodine Canister 131; 7 BOUNDARY having the highest South-southeast of GGNS at the IBEW with sample collection per 7 days calculated annual average Union Hall.

days or as required by dust groundlevel DiQ.

loading, whichever is more Patticulate 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 D/Q.

Radioiodine and Particulates AS-3 61VA (Sector t3, Radius 18 Miles) -

1 sample from a control location 15 - North-northeast of GGNS on Hwy 61, 30 km (10 - 20 miles) distance. North of the Vicksburg Airport.

l_____l_

Direct TLDs Radiation An inner ring of stations in the M-16 (Sector A, Radius 0.9 Miles) - 92 days Gamma dose; 92 days genera.1 areas of the SITE Meteorological Tower.

BOUNDARY.

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.

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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 TLD:s 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.

TLDis An outer ring approximately 3 to 5 M-36 (Sector P, Radius 5.0 Miles) -

miles from the site. Curve on HW 608, Point Nearest GGNS at Power Pole.

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

Headly Drive, Near River Port Entrance.

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Table 1.1 Radiological Environnieiital Sampling Program Exposure Requirement Sample Point Description, Sampling and Type and Frequency Pathway Distance and Direction Collection Frequency Of Analyses Direct TLe)s Radiation An outer ring approximately 3 to 5 M-48 (Sector K, Radius 4.8 Miles) - 0.4 92 days Gamma dose; 92 days miles from the site. Miles South on Mona Gomer Road on West Side.

M-49 (Sector H, Radius 4.5 Miles) - Fork in Bessie Weathers RoadiShaifer 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 RoadiAshland Road Intersection.

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

TLDs 8 siations in special interest areas M-01 (Sector E, Radius 3.5 Miles) - Across such as population centers, nearby the road from Lake Claiborne Entry Gate.

residences, schools, and in 1 or 2 (Special Interest) areas to serve as control stations.

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 Y-Camp. (Special Interest)

M-10 (Sector A, Radius 1.5 Miles) - Grand Gulf Military Park. (Special Interest) 15

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 Fiadiation 8 stations in special interest areas M-14 (Sector B, Radius 18.0 Miles) - AS 92 days Gamma dose; 92 days such as population centers, nearby 61VA, 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) 16

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

~-

Waterborne Surface Water 1 sarnple upstream. -

MRUP (Sector R, Radius 1.8 Miles) At least 4500 92 days Gamma isotopic and tritium ft upstream of the GGNS discharge point into the analyses; 92 days Mississippi River to allow adequate mixing of the Mississippi and Big Black Rivers.

1 sarnple downstream. 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.

1 sample downstream during a Liquid MRDOWN (Sector P, Radius 1.3 Miles) - 366 days Gamma isotopic and tritium Radwaste Discharge. Downstream of the GGNS discharge point into the analyses; 366 days Mississippi River near Radial Well No. 5.

1 sarnple from Outfall 007 QUTFALL 007 (Sector N, Radius 0.2 Miles) - Storm 31 days Tritium; 31 days Drain System 17

Table 1.1 Radiological Environmental Sampling Program

Exposure Requirement Sample Point Description, Sampling and Type and Frequency I Pathway Distance and Direction Collection Frequency Of Analyses 1 Waterborne Groundwater Samples from 2 sources. PGWELL (Sector G, Radius 5.0 Miles) - 366 days Gamma isotopic and tritium Port Gibson Wells - Take from distribution analyses; 366 days 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.

Sediment From Shoreline 1 sarnple from downstream area. SEDHAM (Sector N, Radius 1.6 Miles) - 366 days Gamma isotopic; 366 days Downstream of the GGNS discharge point in the Mississippi River near Hamilton Lake outlet.

1 sarnple from upstream area. SEDCONT (Minimum of 100 yds) -

Upstream of the GGNS discharge point in the Mississippi River.

~ _ _ _ _

Ingestion -

Milk 1 sample from milking animals within 8 Currently, no available milking animals within 92 days when required Gamma isotopic and 1-131; 92 km if milk is available commercially. 8 km of GGNS.

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.

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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 Ingestion -

Fish 1 sample in vicinity of GGNS FISHDOWN - Downstream of the GGNS 366 days Gamma isotopic on edible discharge point. discharge point into the Mississippi River portion; 366 days 1 sample uninfluenced by GGNS FISHUP - Upstream of the GGNS discharge discharge. point in the Mississippi River uninfluenced by plant operations.

Food Products 1 sample of broadleaf vegetation VEG-J (Sector J, Radius 0.4 Miles) - South 92 days when available Gamma isotopic and 1-131; 92 grown in one of two different offsite of GGNS near former Training Center on days locations with highest anticipated Bald Hill Road.

annual average ground level DiQ if milk sampling is not performed.

1 sample of similar vegetation grown VEG-CONT (Sector K, Radius 10.5 Miles) -

15 30 km distant if milk sampling is Alcorn State University south-southwest of not performed. GGNS when available, otherwise a location 15-30 km distant.

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FIGURE 1-1 Exposure Pathways 20

FIGURE 1-2 SAMPLE COLLECTION SITES - NEAR FIELD 21

FIGURE 1-3 SAMPLE COLLECTION SITES - FAR FIELD 22

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 normalized 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 rewlts 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 location M-21 (Sector J, 0.4 miles), levels continue to remain at or near background. The dose rate at location M-21 is caused by increased Nitrogen- 16 levels associated with hydrogen injection to the feed water system.

Hydrogen injection provides protection against Intergranular Stress Corrosion of plant components. Location M-21 dose rate of 4.4 millirem per quarter greater than the Control location M-14 (sector B, 18.0 miles) remains well below the limitations of 10 CFR 20.1301 (a)( 1) and 10CFR 20.1302(b)(2)(ii).

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Figure 2- 1 m Wqtr 2000-2005 TLD Readings 16.0 0

X 2000-2004 0 Control Location 12.0 A A X kxirmrn a x A

(+2 Stdev)

X x x A a x 2000-2004 8.0 Control Location Mtnirmrn A

(-2 Stdev) 4.0 24

2.3 Water Sample Results Analytical results for surface water and groundwater samples were similar to those reported in previous years.

Surface water samples were collected from two indicator and one control location 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. In addition, gamma emitting radionuclides and tritium were undetectable in the downstream sample collected during a liquid radwaste discharge.

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 previous 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 downstream (indicator) location.

2005 REMP data is conaistent with the previous monitoring periods. Therefore, GGNS concluded that plant operations had no significant impact on this pathway during the reporting period.

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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 commercial milk production. Since there are no dairies within five miles of GGNS, it is concluded GGNS' operation had no impact on this pathway.

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 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 Sample Results Food product samples, primarily broad leaf vegetation. were 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.

Five special samples of vegetation were collected at an offsite location to supplement the REMP. GGNS did not detect any plant related gamma emitting radionuclides in vegetation samples during the reporting period.

One special sample of venison was collected on the GGNS property to supplement the REMP. GGNS did not detect any plant related gamma emitting radionuclides in the venison sample during the reporting period.

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2.8 Land Use Census Results The latest Land Use Census was performed April 10-12, 2006. 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 of occupant 2). Address 3). Number of people residing at residence 4). Age group of occupants 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-S000-0-0002. The differences were compared to the locations and assumptions used in calculations for compliance with the Offsite Dose Calculation Manual (ODCM), LCO 6,1 1.6. It was determined that the locations and assumptions currently used in ODCM, revision 32, are more conservative than any of the changes.

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Table 2-1 Land Use Census Results Garden residence in same location as last census'?

b. Is nearest milk aniinal in same location as last census?

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

• Change from last census, see attached table of Land Use Census Changes 28

Table 2-1 Land Use Census Results I Parameter Sector E

• Sector F

• Sector G Sector H I. Nearest Occupied a. Distance (mile) 0.89 1.11 esidence b. Number of Occupants 3 6

c. Degrees from true north 86.9 101.5 129.7 152.5 II. Nearest a. Distance (mile) 0.83 None 1.93 1.08 UnoccupieclResidence (closer than occupied I residence)

UJN IHI. Nearest Milk a. Distance None None AHzirnal IV. Nearest Broadleaf a. Distance (mile) 0.89 3.81 1.11 Garden b. Garden size ift2) =loo0 =1600 = 500

c. Decrees from true north 86.9 114.3 129.1 152.5 V. Census Comparison a. Is nearest occupied residence i n sanie location as last census'? No Yes Yes Yes

b. Is nearest milk animal i n same location as last census'? N/A N/A N/A N/A

c. Is nearest broadleaf garden in same location as last ctmsus? Yes No Yes Yes

$: Change from last census, see attached table of Land Use Cciisus Changes

'g's Could not be determined 29

I Table 2-1 Land Use Census Results I Parameter I Sector J Sector K

• Sector L* Sector M Nearest Occupied a. Distance (mile) 3.16 2.23 0.89 None

b. Number of Occupants 2 1 2

c. Degrees from true north 174.3 196.9 219.7

a. Distance (mile) None None None None

a. Distance None None None None IV. Nearest Broadleaf a. Distance (mile) 3.16 2.23 0.89 None Garden b. Garden size Cft') = 500 = 2500 = 300

c. Degrees from true north 174.3 196.9 219.7

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

b. Is nearest milk animal i n same location as last census? N/A N/A N/A

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

'I' Chmge from last census, see attached table of' Land Use Census Changes 30

Table 2-1 Land Use Census Results Parameter I Sector N

a. Distance (mile) None

b. Number of Occupants

c. Decrees from true north

a. Distance (mile) 1.61

a. Distance None None None I

IV. Nearest Broad.leaf a. Distance (milc ) None None None 1.46 Garden = 4000 342.9 location 11slast census'? NIA NIA Yes

b. Is nearest milk aiiiinal i n same location as last census? N/A NIA NIA I

N/A N/A Yes

i' Change from last census, see attached table of Land Use Census Changes 31

Land Use Census Changes SECTOR PARAMETER Reason for Change A Nearest Occupied Name Change Residence A Nearest Garden New nearest garden Nearest OccLipied E Moved out from 0.83 miles to 0.89 miles Re4idence E Unoccunied Residence House unoccutied l E I Garden Size 1 More accurate size. now two -500 ft gardens I F Nearest Garden New nearest garden K Garden Size More accurate size L Garden SiLe More accurate size 32

2.9 Interlaboratory Comparison Results River Bend Station (RBS) Environmental Laboratory analyzed interlaboratory comparison samples to fulfill the requirements of the ODCM Specifications 6.12.1. , Radiological Environmental Monitoring Report, contains these results in Table 9.1. GGNS review of RBS interlaboratory comparison indicated that 97.5% [40 of 411 of results were within control limits for accuracy, 100% [41 of 411 of results were within control limits for precision 33

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) when determining ranges and means for indicator and control locations.

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TABLE 3.1 Radiological Environmental Monitoring Program Summary Name of Facility: Grand Gulf Nuclear Station Docket No: 50-416 Location of Facility: Claiborne County, klissis- -

Reporting Period: January December 2005 Sample Type Type & Number LLD Indicator Locations Location with Highest Annual Mean Control Locations Number of

( [Jnits ) of Analyses a Mean ( F ) Mean ( F ) Nonroutine

[ Range ] [ Range 1 Results Mean F )

Location d [ Range 1 Air Particulates GB 156 0.0 I 0.029 ( 101I 10-1) AS-I PG 0.026 ( 52 152 j 0.025 ( 52 1 5 2 )

(pCi/m3 ) [ 0.0 10 - o.os4 ] [Scctor G. 5.5 mi ) [ 0.010 - 0.054 ] [ 0.01 I - 0.066 ]

GS 12 cs-I31 0.05 <LLD NIA N/A <LLD cs-137 0.06 <LLD NIA NIA <LLD Airborne Iodine 1-131 156 0.07 <LLD NIA NIA <LLD 0

( pCi/m3 )

Inner King TLDs C;allltua 36 9.2 ( 36 I 3 6 ) M-2 1 13.7 (414j NIA

( mR/Qtr ) [ 5.9 - 15.3 1 ( Sector J. 0.4 mi. ) [ 12.2- 15.3 J Outer Ring TLDs Ganlrlla 28 8.8 ( 281 28 ) M-57 10.2 ( 4 I 4 ) N/A

( iiiR/Qtr ) 1 5.7 - I 1.4 ] (Sector F. 4.5 mi.) [ 9.2 - 1 1.4 ]

Special Interest TLDs Gnlnlna 28 8.5 ( 28 I 2 8 ) M-01 10.6 ( 414 ) NIA

( mR/Qtr ) [6.3-11.5] ( Sector E, 3.5 mi. ) [ 9.7 - 11.5 ]

Control TLDs Gamma 4 N/A NIA NIA 9.3 ( 4 1 4 )

( niR/Qtr ) [ 7.9 - 10.8 ]

35

TABLE 3.1 Radiological E~ivironmeatalMonitorine Propram Summary Name of Facility: Grand Gulf Nuclear Station Docket No: 50-416 Location of Facility: Claiborne County, blississippi Reporting Period: January - December 2005

~~~~ ~

Type 24 Number Indicator Location Location with Highest Annual Mean Control Locations Number of of Analyses a Mean ( F ) Mean ( F ) Nonroutine

[ Range 1 Range 1 Results Mean ( F )

Location d [ Range ]

H-3 I0 < LLD NIA NIA <LLD 0 Ci S 12 1-131 <LLD N/A N/A <LLD 0 MI\-54 <LILD NIA NIA <LLD 0 Fe-SC) <LLD NIA NIA <LLD 0 co-58 <LLD N/A NIA <LLD 0 CO-60 <LL,D WIA N/A <LLD 0 zn-65 <I.LD NIA N/A <LLD 0 Zr-95 <LL,D NIA N/A <LLD 0 Nh-95 <LLD NIA N/A iLLD 0 c4-131 <LLD N/A NIA <LLD 0 CS- I 37 .=LL,D N/A N/A <LLD 0 Ba- 140 <LLD NIA Nlh <LLD 0 La- I40 <LLD NIA NIA <LLD 0 36

TABLE 3.1 Radiological Environmental hlonitorinp Program Summarv Name of Facility: Grand Gulf Nuclear Station Docket No: 50-416 Location of Facility: Claiborne County. miss is^ Reporting Period: Qanuarv - December 2005 Sample Type Type S: Niimber LLD Indicator Locations Location with Highest Annual Mean Control Locations Number of

( tinits ) of Analyses a RIean ( F ) Mean ( F 1 Nonroutine

[ Range 1 [ Range 1 Results Mean ( F )

Location d [ Range ]

Groundwater H-3 1. 2000 <LLD N/A N/A <LLr) 0 (pCi/l 1-131 2 1 <LLD NlA N/A <LLD 0 C;S 4 MII-54 15 <LL,D NIA N/A <LLD 0 FC-59 30 <LI.D NIA NIA <LL,D 0 CO-S8 15 <L,LD NIA N/A <LLD 0 C<)-60 15 <L.LD N/A N/A <LLD 0 Zn-65 30 <LLD N/A NIA <ILD 0 zr-95 30 <L,LD N/A N/A <LL,D 0 Nb-95 15 <L,LD NIA N/A <LLD 0 cc-131 15 <L,LD N/A NlA <LLD 0 c s - 137 18 <L,LD NIA N/A <LLD 0 Ba- 140 60 <LLU Nlh N/A <LLD 0 La- I10 15 <I ,LD NIA NIA <LLD 0 Sediment GS 4

( pCi/kg ) cs-I33 150 <LLD N/A N/A <LLD 0 cs-137 180 N/A N/A <LLD 0

.? 7

TARLE 3.1 Radioloaical Environmental Monitoring Propram Summarv Name of Facility: <;-randGulf Nuclear Station Docket No: 50-416 Location of Facility: Claiborne County, Mississippi Reporting Period: January - December 2005 Sample Type Type & Number LLD Indicator Location Location with Highest Annual Mean Control Locations Number of

( IJnits ) of Analyses Mean ( F ) Mean ( F ) Nonroutine

[ Range 1 [ Range 1 Results Mean ( F )

Location d [ Range 1 GS 4 Mn-51 130 <ZLD N/A N/A <LLD 0 Fe-59 260 <LL.D NIA NIA <LLD 0 CO-S8 130 <LLD NIA Nlh <LLD 0 co-60 130 4,LD NIA NIA <LLD 0 Zn-65 360 <LLD NIA NIA <LLD 0

( 2 5 - 134 I30 <LLD NIA N/A <LLD 0 cs-I37 150 <LLD N/A N/A <LLD 0 Food Products 1-131 I0 <LLD NIA NIA <LLD 0

( pCi/kg )

c; S 10 cs- 13.1 <L.LD NIA NIA <LLD 0 c s - 137 <L,LD NIA NIA <LL,D 0 38

TABLE 3.1 Radiological Environmental Monitoring Program Summary Name of Facility: Grand Gulf Nuclear Station Docket No: 50-416 Location of Facility: Claiborne Countv, Mississitmi Reporting Period: January - December 2005 Sample Type Type & Number LLD b Indicator Location Location with Highest Annual Mean Control Locations

( Units ) of Analyses a >lean ( F ) Mean ( F )

[ Range 1 Range 1 Mean ( F )

Location d [ Range ]

Venison GS I (Special) Mn-51 <LLD NIA NIA NIA

( pcikg Fc-SC) <LLD NIA NIA NIA Co-sx <LLD NIA NIA NIA CO-60 <LLD NIA NIA NIA Zn-65 <L,LD N/A NIA NIA c\-131 <L,LD NIA NIA NIA Ca- 137 <L,LD NIA NIA NIA Food Products 1-131 5 60 <L.LD NIA NIA <LLD (Special) pCi/Kg GS 5 cs-131 60 <L,LD NIA NIA <LLD CIS- I37 80 <LLD N/A N/A <LLD a GB = Gross beta; 1-131 = Iodine-131; H-3 = Tritium; GS = Gamma scan.

LLD = Required lower limit of detection based on GGNS ODCM Table 6.12.1-3.

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

"here applicable, locations are specified by name, distance from reactor site and meteorological sector.

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.

LLD is not defined in GGNS ODCM Table 6.12.1-3.

39

Attachment 1 Radiological Monitoring Report Summary of Monitoring Results

Attachment 1 TABLE 1.1 AIR PARTICULATE FILTER GROSS BETA AND 42 CHARCOAL CARTRIDGE IODINE-131 TABLE 1.2 AIR PARTICULATE FILTER GAMMA 51 TABLE 2.1 THERMOLUMINESCENT DOSIMETERS 52 TABLE 2.2 THERMOLUMINESCENT DOSIMETERS 53 TABLE 2.3 THERMOLUMINESCENT DOSIMETERS 54 TABLE 3.1 SURFACE WATER GAMMA 55 TABLE 3.2 SURFACE WATER TRITIUM 56 TABLE 4.1 GROUNDWATER GAMMA 57 TABLE 4.2 GROUNDWATER TRITIUM 58 TABLE 4.3 GROUNDWATER IODINE-131 59 TABLE 5.1 SEDIMENT 60 TABLE 6.1 FISH 61 TABLE 7.4 FOOD PRODUCTS 62 TABLE 8.1 SPECIAL SAMPLES 63 TABLE 9.1 INTERLABORATORY CBMPARISBIV 64

Table 1 . 1 Sample Type: Air Particulate Filter and Radioiodine Cartridge Analy4s: Gross Beta and I- 131 Units: pCi/m' SAMPLE, AS-1 PG - GGNS Nearest Community LLD (pCi/mA3) AS-1 0.07 0.01 LAB ID START DATE END DATE 1-131 GROSS BETA 2005000 1 12/28/2004 I /4/2005 < 0.016 0.019 +/- 0.002 200500 I9 I /4/'005 1 1I 1/2005 < 0.015 0.0 13 +/- 0.002 20050062 1 / 1 1/2005 1/ I Ki2005 < 0.016 0.034 +/- 0.003 2 005(1070 1 / 1 8/2005 1/25/2005 < 0.018 0.028 +/- 0.002 100500'>6 112512005 21 1/2005 < 0.016 0.02 1 +/- 0.002 20050 103  ?/ 1/2005 2/8/2005 < 0.020 0.017 +/- 0.002 70050 I33 2/8/2005 2/ I 51200s < 0.017 0.024 +I- 0.002 70050 166 21 1 5/2005 2/22/2005 < 0.016 0.027 +/- 0.002 20050 188 2/22/2005 31 1 /2005 < 0.012 0.029 +/- 0.002 200507 I4 31112005 3/8/2005 < 0.017 0.025 +/- 0.002 200502-!0 3/8/2005 311512005 < 0.0 I6 0.011 +/- 0.002 7 00502~ 4 i/ 1m o o 4 3/22/2005 < 0.019 0.02 1 +/- 0.002 700503 I 0 3/22/2005 3/29/3005 < 0.012 0.013 +/- 0.002 10050334 3/19/2005 4/5/2005 < 0.017 0.017 +/- 0.002 3 ) 0 5 0372 4/5/2005 4113/2005 < 0.017 0.016 +/-0.002 2005()-LOO A/ I 2/3005 4l 19i2005 < 0.019 0.02 1 +/-0.002 200504 14 4/ I 912005 4/26/2005 < 0.013 0.01 8 +/-0.002 ZOO504.34 4/26/2005 5/3/2005 < 0.018 0.022 +/- 0.002 1

42

0.07 0.01 START DATE END DATE 1-13] GROSS BETA 5/3/2005 51 10/2005 < 0.016 0.024 +I- 0.003 5/1 012005 511 712005 < 0.015 0.028 +/- 0.002 5/1712005 5/24/2O()5 < 0.016 0.027 +/- 0.002 512412005 513 112005 < 0.014 0.020 +I- 0.002 513 I12005 61712005 < 0.014 0.016 +/- 0.002 6/7/2005 hl I112005 < 0.014 0.010 +/- 0.002 611 -moos 612 112005 < 0.01s 0.023 +/- 0.003 612 112005 61281201~5 < 0.034 0.035 +I-0.002 612812005 7/5/2005 < 0.014 0.0 18 +/- 0.002 7/5/3005 71I 212005 < 0.018 0.01 7 +I-0.002 7/ I 212005 711912005 < 0.015 0.01 I +/- 0.002 711 912005 7/26/2005 < 0.017 0.020 +/- 0.002 7/26/2005 Xl212005 < 0.014 0.024 +/- 0.002 81212005 81~)12005 < 0.016 0.026 +/- 0.002 819/300S XI 1612005 < 0.016 0.025 +/- 0.001-81 1hl2005 x12312oo.s < 0.015 0.01 8 +/- 0.002 812il2005 817017005 < 0.070 0.048 +/- 0.005 8/30/2005 9l612005 < 0.058 0.054 +I- 0.00 1 9/6/2005 91 1 712005 < 0.020 0.043 +I- 0.003 911 712005 9/2~)/20i~S < 0.017 0.024 +/- 0.002 2

43

LLD (pCilm"3) AS-1 0.07 0.01 LAB ID START DATE END DATE 1-131 GROSS BETA 9/20/2005 < 0.017 0.028 +/- 0.003 9/27/2005 < 0.019 0.026 +/- 0.002 2005 118 1 C)/4/2005 < 0.018 0.0 I9 +/- 0.002 1005 158 I o/ 1 1/2005 < 0.018 0.049 +/- 0.003 2005 1 04 I O/ 1 812005 < 0.018 0.041 +/- 0.003 1005 21'1 1 0/2s/200s < 0.016 0.028 +/- 0.002 1 1/ I /2005 < 0.018 0.029 +/- 0.003 1 1 lKi2005 < 0.016 0.028 +/- 0.002 1 1 / 1Y2005 < 0.029 0.033 +/- 0.003 2005 298 I 1/22/2005 < 0.018 0.03 1 +/- 0.003 2005 31.1 I 1/29/2005 < 0.018 0.037 +/-0.003 2005 347 12/6/2005 < 0.015 0.043 +/-0.003 2005 385 I 2/ 1 312005 < 0.028 0.03 1 +/- 0.003 2005 409 I2/20/2005 < 0.014 0.038 +/-0.003 Average: 0.026 hlaxinium 0.054 Minimum: 0.010 43

Trrblc 1 . 1 Sainpk Type: Air Particulate Filter and Radioiodine Cartridge Aiiitlyais: Gross Beta and 1-13 1 units : p ~ i / i 'u PLE AS-3 6PVA - GGNS - Control 0.07 0.01 START DATE END DATE 1-131 GROSS BETA I2/2812004 I /4/3005 < il.016 0.019 +/- 0.002 1 /1/7005 I / 1 1/7005 < 0.016 0.013 +/- 0.002 I / 1 1I2005 1 I1 Xi2005 < 0.015 0.032 +/- 0.002.

1 I1 812005 1 12512005 < 0.015 0.029 +/- 0.002 1125/2005 3-/ 1 /2005 < 0.014 0.02 1 +/- 0.003 2/ 11200s 2/1117005 < 0.017 0.01 8 +/- 0.002 7/8/2005 2/15/2005 < 0.017 0.026 +/- 0.002 21 1s12005 2/22/2005 < 0.016 0.025 +/- 0.007 2/~'/2005 3/1/1005 < 0.0 I6 0.03 I +/- 0.002 311/2005 3/Xl'OO5 < 0.020 0.023 +/- 0.002 3/8/2005 31 1 5/2005 < 0.015 0.0 16 +/- 0.002 3/ 1 5/200J 3/12/2005 < 0.016 0.0 17 +/- 0.002 3127/200s .v29/2005 < 0.017 0.017 +/- 0.002 3iZ913005 4/512005 < 0.016 0.016 +I-0.002 11512005 1/12/2005 < 0.017 0.0 13 +/-0.002 41 I2/2005 i/ 1 9/2005 < 0.018 0.020 +/-0.002 4 I9/2005 1i2612i105 < 0.015 0.020 +I-0.00' 1/76/7005 51311-0ij5 < 0.017 0.023 +/- 0.002

LLD (pCi/mA3) 0.07 0.01 LAB ID START DATE END DATE 1-131 GROSS BETA 5/3/2005 5/ 1 0/2005 < 0.020 0.025 +/- 0.002 51 1012005 51 1 7/2005 < 0.019 0.026 +/- 0.002 51 I 7/2005 5/24/2005 < 0.017 0.027 +/- 0.002 5/24/2005 5/3 11200s < 0.016 0.020 +/- 0.002 513 112005 6/7/2005 < 0.016 0.017 +I- 0.002 6/7/2005 611 m o o 5 < 0.019 0.0 12 +/- 0.002 61 I4/2005 612 112005 < 0.013 0.025 +I- 0.002 612 1 I2005 6/28/1005 < 0.029 0.066 +I- 0.003 6/28/2005 7/5/2005 < 0.019 0.0 16 +/- 0.002 7/5/3005 71I 212005 < 0.014 0.0 14 +/- 0.002 711 2/2005 71I WOO5 < 0.019 0.01 1 +/- 0.002 7119l2005 7/26/2005 < 0.014 0.017 +I- 0.002 7/26/2005 8/3/2005 < 0.014 0.023 +/- 0.002 Y/2/2005 x/9/2005 < 0.018 0.026 +I- 0.002 8/9/2005 8/ 1 hi200S < 0.018 0.02 I +/- 0.002 8/ 1612005 8/23/2005 < 0.018 0.016 +/- 0.002 8/23/2005 8/39/2005 < 0.068 0.045 +I- 0.005 8/30/2005 C)/h/2005 < 0.017 0.039 +/- 0.003 9/6/2005 9/ I 3/2005 < 0.016 0.039 +I- 0.003 91I 312005 9/20/20os < 0.016 0.024 +/- 0.002 46

0.07 0.01 LAB ID START DATE END DATE 1-131 GROSS BETA 2005 1007 9/20/2005 9/27/2005 < 0.018 0.026 +/- 0.002 2005 I Oh8 9/27/2005 10/4/3005 < 0.019 0.022 +/- 0.002 2005 I I 19 10/3/2005 I o/ 1 1 /2005 < 0.017 0.0 1s +/- 0.002 1005 1 15) 101I I12005 1 01 1 8/2005 < 0.023 0.043 +/- 0.003 3005 1 195 1O/ 1 8/2005 I0/25/2005 < 0.019 0.03%+/- 0.003 2005 I120 I0/25/2005 1 11112005 < 0.017 0.022 +/- 0.002 2005 1262 1 1/ I /2005 I 1/8/2005 < 0.021 0.026 +/- 0.002 2005 I268 I 1 /8/2005 I 1 / I5/2005 < 0.017 0.025 +/- 0.002 2005 1295 1 I / I 5/2005 1 I /21/2005 < 0.035 0.03 1 +/- 0.003 2005 I299 1 1/22/2005 1 I/29/2005 < 0.017 0.030 +/- 0.003 LO05 13-44 1 1/39/2005 12/6/2005 < 0.021 0.032 +/-0.003 2005 17-48 12/6/200S I2/ I w o o 5 < 0.017 0.041 +/- 0.001 1005 1 3 8 h 121I3/2005 1 2/20/2005 < 0.018 0.029 +/- 0.003 2005 14 10 11/20/2005 12/27/2005 < 0.017 0.036 +/-0.003 Average: 0.025 hIaximurn 0.066

~linimum: 0.01 1 47

Table 1 . 1 S~umpleType: Air Particulate Filter and Radioiodiiie Cartridve Anal) \is: Gross Beta and I- 131 U n i t \ : pCi/mi SAMPLE AS GGNS - Indicator LLD (PCilIll3) i\S-7UH 0.07 0.01 LAB ID START DATE, IEND DATE 1-131 GROSS BETA 2( ~i)SO003 12/28/2004 I1112005 < 0.018 0.016 +/- 0.002 2005002 I 1/4/2005 I / 1 112005 < 0.015 0.014 +/- 0.002 200.50( )64 I / I 1/2005 1 I1 8/2005 < 0.017 0.03 1 +/- 0.002 20050072 I / I x/2005 1125i21~05 < 0.016 0.028 +/- 0.002 20050098 I /25/2005 21 112005 < 0.015 0.018 +/- 0.002 20050 I05 21 112005 2/s/2005 < 0.015 0.015 +/- 0.002 20050 I 15 2/8/2005 21 15/2005 < 0.016 0.027 +/- 0.002 20050 1 68 2/ 1 5/2005 2/22/2005 < 0.018 0.024 +/- 0.002 20050 I90 212 212 005 ?I1/2005 < 0.013 0.027 +/- 0.002 200.502 I6 3/ I I2005 3/x/2005 < 0.010 0.021 +/- 0.002 20050242 1/8/2005 Vl512C)OS < 0.020 0.0 16 +/- 0.002 7_00502S6 31 15/2004 3/22/2005 < 0.017 0.020 +/- 0.002 LOO503 I2 1/22/2005 3/29/2005 < 0.016 0.012 +/- 0.002

?_0050336 3/29/2005 4/.5/2005 < 0.017 0.019 +/-0.002 20050 171 4/5/2005 411212005 < 0.01s 0.016 +/-0.002 0050102 411 2/2005 411 9/2005 < 0.015 0.019 +/-0.002

.10050116 4/ I 9/2005 4/26/3005 < 0.015 0.019 +/-0.002

?005013h 4/2b/2005 5/3/2005 < 0.017 0.02 1 +/- 0.002 1

48

LLD (pCi/mA3) 0.07 0.01 LAB ID START DATE END DATE 1-131 GROSS BETA 20050462 513/2005 51 1 012005 < 0.018 0.02s +I- 0.002 20050474 5/ 1 012005 51 1 712005 < 0.017 0.025 +/- 0.002 100505 13 5/ I 712005 512-112005 < 0.017 0.024 +/- 0.002 20650523 5/23/2005 513 I 12005 < 0.016 0.018 +/- 0.002 20050560 513 1 /20os 6/7/2005 < 0.018 0.013 +/- 0.002 2005 05 85 6/7/2005 61I412005 < 0.015 0.012 +/- 0.002 200506 2 x h/ 1312005 hi2 112005 < 0.015 0.022 +/- 0.002 20050663 612 I12005 612812005 < 0.021 0.035 +I-0.002 20050692 6/28/2005 7/5/2005 < 0.015 0.020 +I- 0.002 200507 16 7/5/2005 711 2/2005 < 0.016 0.016 +/- 0.002 20050716 7/ 12/2005 711 912005 < 0.019 0.01 1 +/- 0.002 20050772 71I W O O 5 7/26/2005 < 0.017 0.0 17 +I- 0.002 20050x05 7/26/2005 8/3/2005 < 0.014 0.02 1 +/- 0.002 20050826 8/2/7005 XI'~l2005 < 0.0 14 0.027 +/- 0.002 20050859 XI9I2005 8/ I612005 < 0.01s 0.024 +/- 0.002 200508X 1 8/ 1612005 812312005 < 0.013 0.017 +I- 0.002 20050937 8/23/2005 8/30/2005 < 0.064 0.041 +I- 0.005 2005092 3 X/30/2005 9/6/2005 < 0.023 0.042 +/- 0.004 20050958 9/6/2005 9/ I 312005 < 0.020 0.039 +/- 0 003

?_0050981 91 I312005 9/20/2005 < 0.020 0.023 +I- 0.002 2

49

0.07 0.01 START DATE END DATE 1-13] GROSS BETA

< 0.014 0.030 +/- 0.003

< 0.015 0.025 +/- 0.002

< 0.015 0.016 +/- 0.002

< 0.019 0.048 +/- 0.003

< 0.01 7 0.035 +/- 0.003

< 0.016 0.924 +/- 0.002

< 0.018 0.026 +/- 0.002

< 0.013 0.024 +/- 0.002

< 0.029 0.070 +/- 0.002

< 0.016 0.032 +/- 0.003

< 0.020 0.033 +/-0.003

< 0.018 0.04s +/- 0.003

< 0.027 0.03 1 +/- 0.003

< 0.013 0.037 +/-0.003 0.024 0.048 0.01 1 50

Table 1.2 Saniple Type: Wl'articulate Filter Anal yxi s: Gamma Isotopic Ilnit\: pCi/m' PARTICULATE FILTER QUARTERLY COMPOSITES (GAMMA) - GGNS E1.D (pCilm"3) 0.05 0.06 LAB ID LOICATION DATE (3-134 CS-137 20050344 AS-l PG < 0.005 < 0.004 20050315 AS 3 61VA < 0.004 < 0.002 2005014(3 4s-7 UH < 0.004 < 0.003 2005Oh94 AS 1 PG < 0.003 < 0.002 20050695 AS 3 6IVA < 0.004 < 0.004 10050696 AS 7 UH < 0.004 < 0.003 2005 1 13 1 AS 1 PG < 0.005 < 0.004

'005 1 112 ,4s 3 6 l V A < 0.004 < 0.00s 2005 1 133 AS 7 UH < 0.004 < 0.00s 2005 I434 AS- 1 PG < 0.004 < 0.004 2005 1435 AS-3 6 I VA < 0.004 < 0.004 2005 1430 AS-7 UH < 0.004 < 0.003 51

Table 2.1 Sample Tq pe: Thermoluminescent Dosimeters i-\nalqsis: Gamma Dose Units : mrendQtr Inner Ring - Within General Area of Site Boundary (QPDChS Specifications)

Station 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Annual Mean M-16 8.9 9.7 1 I .9 10.3 10.2 M- 1 7 8.6 9.0 10.0 10.3 9.5 M-19 7.3 9.1 9.5 9.5 8.9 M-21

• 13.2 15.3 12.2 14.2 13.7 Riz-22 6.2 8.3 9.0 8.6 8.0 M-23 5.9 6.4 8.3 8.7 7.3 M-25 5.9 6.2 7.9 8.5 7.1 M-28 8.2 8.9 10.5 11.7 9.8 M-94 7.8 7.5 8.0 9.8 8.3 Outer Wing - Approximately Three (3) to Five (5) Miles from the Site (ODChI Specifications)

Station 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Annual

%lean

~

M-36 6.5 7.3 8.2 8.6 7.7 M-40 5.9 5.7 7.4 7.2 6.6 M-48 7.9 7.9 9.4 9.7 a.7 M-49 9.4 9.0 10.9 11.0 10.1 M-50 8.2 7.4 9.7 9.0 8.6 M-55 9.8 9.1 10.8 10.4 10.0 M-57" 9.7 9.2 11.4 10.4 10.2

• Location with highest annual mean.

52

Table 2.2 Sample Type: 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 NI-Ol* 9.7 11.5 9.9 11.2 10.6 M-07 8.6 10.1 7.8 11.3 9.4 M-09 7.9 9.1 7.9 9.4 8.6 M-10 7.4 8.6 6.3 7.8 7.5 M-33 8.0 6.3 7.7 7.8 7.5 M-38 6.5 7.1 9.6 9.0 8.1 M-39 8.1 7.1

_ _ ~ ~

8.8 8.6 8.1

• Location with highest annual mean.

Table 2.3 Sample Type: ThermoluminescentDosimeters Analysis: Gamma Dose Units: mrem/Qtr Special Interest Areas - Control (ODCM Specifications)

Station 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Annual Mean M-14 8.8 9.6 7.9 10.8 9.3 54

Table 3. i S ii i i i p 1e Type : Surface Water An a1y si 5 : Gamma Isotopic Units: pCi/l SURFACE WATER SAMPLES (GAMMA) - GGNS 15 30 30 15 30 15 15 18 60 15 m-58 FE-3 ZN-65 NB-95 ZR-95 1-131 CS-134 CS-137 BA-140 LA- 140

< 898 < 13.34 < 19.52 < 11.4.3 < 17.45 < 12.06 < 9.79 < 11.69 < 28.12 < 11.35

< 1360 < 17.90 < 26 6 2 < 11.51 < 19.71 < 9.85 < 13.04 < 1.3.81 < 42.11 < 14.71

< 8 0s < 23.30 < 7.3.10 < 11.35 < li).08 < 12.81 < 11.52 < 11.13 < 34.2s < 3.65 1/11/2005 < 12.56 < 1244 < 22.09 < 2877 < 12.78 < 15.63 < 12.44 < 12.53 < 12.82 < 46.85 < 12.87 l/512005 < 9.50 < 1061 < 1.3.84 < 1952 < 8.56 < 12.44 < 9.69 c: 8.85 < 9.07 < 28.94 < 10.38 4/5/2005 < 9.95 < 5 10 < 12.79 < 21.88 < 11.43 < 14.36 < 8.78 < 8.90 < 8.46 < 28.98 < 10.82 7/12/2005 c 7.32 < 10 70 < 14.26 < 20.13 < 9.03 < 13.93 < 7.36 < 9.82 < 7.82 < 26.60 < 10.1.3 711717005 < 1 I .66 < 907 < 19.92 < 17.20 < 11.11 < 15.95 < 10.82 < 10.35 < 15.31 < 22.85 < 12.9.5 101I 1120IJ5 < 1 1 .02 < I380 < 19.4l < 27 57 < 14.30 < 17.04 < 12.71 < 6.39 < 9.51 < 37..52 < 7.53 1 0 i 1 li2005 < s 57 < 1040 < 20 46 < 1935 < 8.73 < 15.15 < 13.29 < 11.15 < 9.49 < 34.29 < 6.81 10/19/2005 < 6.82 < h 12 < 11.2s < 16.09 < 4.84 < 14.90 < 12.64 < 8.57 < 9.07 < 36.60 < 14.78

< 772 < 20.5') < 1043 < 5.80 < 15.12 < 9.86 < 8.39 < 5.50 < 34.20 < 12.96

,:' A i i i i u a l Sample collectcii during liquid discharge "GG" - inclicntes duplicate smiplc.

55

Table 3.2 Sample Type: Surface Water Analysis: Tritium Units: pCi/l SURFACE WATER SAMPLES (TRITIUM) - GGNS LLD (pCi/l) 3000 LAB ID LOCATION DATE TRITIUM 20050024 MR DOWN 1 I1 I 12005 < 573 20050026 MRUP 1I1 1 I2005 < 572 2005033 1 MR DOWN 41513-005 < 563 20050333 MRUP 41512005 < 573 200507 I9 MR DOWN 711 212005 < 583 2005072 1 MRUP 711 213,005 < 578 2005 I I23 MR DOWN I 0/ 1 I 12005 < 573 2005 1 I 25 MRUP 1 01 1 1 12005 < 575 2005 1 167 ' MR DOWN 1011 912005 < 587 200s I I69 :' MR DOWN GG 1 01 1 912005 < 588

'k Annual Sarnplc collccted during liquid discharge "GG" - indicates duplicate samplc.

56

Table 3 . I S a1npI e Type : Groundwater h a 1 si s : Gamma Is0t opi c tinits: pCiA

~ ~ WATER ~ SA%iPEES

~ (GAMMA) ~ - GGNS J N ~

20051 183 PCMtLLGG lOl2-ii7005 i 11.21 rc 10.36 < 35.77 < 7.95 c: 15.07 c: 10.66 < 15.82 < 13.48 < 11.02 < 40.X9 < 14.77 "GG" --indicates duplicate saniplt..

Table 4.2 Sample Type: Groundwater Analysis: Tritium Units: pCi/l GROUND WATER SAMPLES ( TRITIUM) - GGNS LLD (pCi/l) 2000 LAB ID LOCATION DATE TRITIUM 20051 178 PGWELL 10/24/2005 < 588.47 2005 1 I8 1 CONSTWELL 10/24/2005 < 590.39 2005 1 I84 PGWELL 10/24/2005 < 580.33 2005 1 I85 CONSTWELL GG I0/24/2005 < 604.33 58

Table 4.3 Sample Type: Groundwater Analysis: Iodine Units: pCi/l GROUND WATER SAMPLES (Iodine-131) - GGNS LLD(pCi/l) 1 .o LAB ID LOCATION DATE 1-131 2005 1 177 PGWELL I0/24/2005 < 0.88 2005 1 I80 CONSTWELL I 0/24/2005 < 0.85 59

Table 5.1 Sample Type: Sediment Analysis: Gamma Isotopic Units: pCi/kg SEDIMENT SAMPLES (GAMMA) - GGNS LLD (pCi/kg) 150 180 LAB ID L0CATI 0N DATE CS-134 CS-137 2005 I 170 SEDHAM 1011912005 < 29.64 < 28.12 20051 I71 SEDCONT 101I 91200s < 26.42 < 26.00 2005 I 172 SEDCONT GG I 01I9/2005 < 22.44 < 22.53 2005 1 173 SEDHAM GG 1011912005 < 29.37 < 29.00 "GG" - indicates duplicate sample.

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HI3 SAMPLES (GAMMA) - GGNS ELD ipCi/kg) 130 130 260 130 260 130 150 LAB LOCATION DATE NIN-54 c0-58 FE-59 CO-60 ZN-65 CS-134 CS-131 7005075 FISHUP 7/15/3005 < 12.87 < 18.12 < 53.35 < 22.XI < 52.61 < 19.55 < 22.13 2005075 FISHUP GG 7/15/2005 < 15.77 < 18.19 < 31.42 < 19.73 < 37.14 < 16.50 < 19.13 2005075 FISHDOWN 7/15/2005 < 13.18 < 20.32 < 51.36 < 26.76 < 40.43 < 24.28 < 19.39 1005075 FISHDOWN GG 7/15/2005 < I 1.14 < 17.98 < 11.32 < 14.90 < 47.63 < 13.81 < 13.14 GG - Indicate4 duplicate sample.

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Table 7.1 Sai-ripleType: Food Products A n a l y i 4 : Iodine- 1.3 1 and Gannia Isotopic Units: pCi/hz EGETATION SAMPLES (GAMMA) - GGNS 60 60 80 LAB ID L,OCATION DATE 1-131 CS-134 CS-137 20050037 VEG-CON r 1 / 121300-5 < 13.75 < 51.28 < 52.48 2005Of13X VEG-J 1 / 1 212005 < 48.07 < 50.91 < 62.99 20050019 vmcoNr C;G 1 J 1212005 < 34.90 < 48.12 < 40.75 7 005 O( )40 V k G J GG 1/ 1 2/2005 < 49.21 < 56.64 < 34.19 1005035X VEG-C'ONT 4/5/2005 < 5967 < 57.01 < 31.81 20050.350 VEG-J 4/5/2005 < 58.89 < 47.80 < 43.23 20050748 VEG-CONT 711 9/2005 < 55.06 < 22.95 < 48.18 20050719 VEG-J 71 I9/2005 < 40.98 < 49.94 < 61.63 86 VEG-CONT 10/21/2005 < 57.97 < 53.72 < 36.30 s7 VEG-J 1012 1/2005 < 59.09 < 34.71 < 31.11

- indicate5 duplicate sample.

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Table 8.1 Sample Type: Special Samples 24nalysls: Gamma Icotopic Un1t4: pcl/lig ECIAL VENISON SAMPLES (GAMMA) - GGNS LLD (pCi/kg) 130 130 260 130 260 130 150 EBB SAMPLE ID DATE MN-51 c0-58 FE-59 CO-60 ZN-65 CS-134 CS-137 2Ci05I248 VENISON I1/7/200S < 17.67 < 14.32 < 33.43 < 18.27 < 45.80 < 17.10 < 16.52 SPECIAL VEGETATION SAMPLES (GAMMA) - GGNS LLD (pCi/kg) 60 60 88)

LAB ID I ,OC'ATION DATE 1-131 CS-134 CS-137

?005004 I VEC-SPECIAL, 1 / 1 212005 < 33.h1 < 41.56 < 40.82.

20050032 VEG-SPECIAL GG 1/ 12/200.5 < 33.h5 < 26.25 < 38.36 200503hO VEG-SPECIAL 4/5/2005 < 48.87 < 42.20 < 47.98 200.50750 VEG-SPECIAL 7 / 19/2005 < 24 1s < 20.25 < 29.78 310.5 1 1 X8 VEG-!ZPECIAL 1 0/2 1PO05 < 56.98 < 30.13 < 40.99 "GG" - inclicate4 duplicate sample.

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Table 9.1 Sample Type: Interlaboratory Comparison Analysis: Gross Beta, Tritium, Iodine-13 1 and Gamma Isotopic Sample Type Sample Date Analysis Known Measured N- N-(units) Number val ue(a) Value DEV(b) RANGE(c)

Charcoal E4570-125 6/9/2005 1-131 91.7 96.3 0.88 0.386 Cartridge (pCi/filter)

Water BETA 214 232 1.48 0.055 E4569-125 61912005 (pCi/l iter) E4568-125 6/9/2005 CR-51 330 347 0.89 0.251 H-3 41 90 4337 0.61 0.152 E4719-125 9/15/2005 Air Filter BETA 95.8 94.2 -0.29 0.253 E4717-125 911512005 (pCi/filter) CR-51 237 209 -2.05 0.548 4720-125 911512005 MN-54 64.5 65.3 0.21 0.449 Sediment E4718-125 (pCi/gram)

Analytks #

E4571-125 (pcilliter)

NOTES:

(a) The known value.

(b) The normalized deviation from the "known" value is computed from the deviation and the standard error of the mean; t2.00 is warning limit and k3.00 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.

(d) The results reported were out of the control limits.

Exceptions:

One result was outside the control limits for accuracy in the 2005 lnterlaboratory Comparison program participation studies. The result was in the analysis of the nuclide Mn-54 in sedimentkoil sample number E4718-125. The normalized-deviation for the analysis was

+4.28 with control limits of k3.00. Re-analysis of the 2005 soil sample produced results very similar to the original averaged result. This high bias result is considered conservative and is considered as having no impact on past results of the program. Mn-54 results were within control limits in other program samples for the year 2005. Coincidence summation in the efficiency curve near 834 keV can result in a lower efficiency and higher calculated activity in that region.

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