ML062960151

Grand Gulf, 2005 Annual Radiological Environmental Operating Report (AREOR)

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

Text

Entergy Operations, Inc.

P.O. Box 756 Port Gibson MS 39150 Tel 601 437 6299 Charles A. Bottemiller Manager Plant Licensing - Waterloo Road - Er2tWg-y 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/M J L attachment:

cc: (See Next Page) 2005 Annual Radiological Environmental Operating Report April 26, 2006 Page 2 of 2 GNRO-2006-00017 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

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 lnterlaboratory

Comparison Results 3.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

3.1 Program

Results Summary 11 11 11 12 23 23 23 25 25 26 26 26 27 33 34 34 3 i TABLE 1.1 TABLE 2.1 TABLE 3.1 LIST OF TABLES RADIOLOGICAL ENVIRONMENTAL SAMPLING PROGRAM 13

LANDUSECENSUSRESULTS 28 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

35 3 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 20 21 22 24 4 LIST OF ATTACHMENTS ATTACHMENT 1 RADIOLOGICAL MONITORING REPORT

SUMMARY

OF MONITORING RESULTS 41 5 Summary The Annual Radiological Environmental Operating Report presents data obtained through analyses of environmental samples collected for Grand Gulf Nuclear Station's (GGNS) Radiological Environmental Monitoring Program (REMP) for the period January 1, 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. 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 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 md 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 MSDH'5 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.

7 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.

8

+ 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 malfunction of sampling equipment and other legitimate reasons.

to Out-of - Sample Date In Date Out RunTime service Comments Location hours hours AS-1 PG 01 11 1 105 01 11 8/05 158.06 9.92 Power Outage AS-7 UH AS-7 UH AS-7 UH AS-7 UH AS-1 PG AS-7 UH AS-7 UH AS-1 PG AS-3 61 VA AS-1 PG AS-7 UH AS-3 61 VA AS-1 PG AS-7 UH AS-1 PG AS-7 UH AS-3 61 UA AS-1 PG 01 11 1 105 01 11 8/05 02/01 105 04/05/05 05/24/05 05/24/05 07/05/05 07/05/05 08/23/05 08/23/05 08/23/05 0813 010 5 08/30/05 08/30/05 09/20/05 1 1/22/05 1 1/29/05 1 1/29/05 01 11 8/05 01 125105 02/08/05 0411 2/05 05/31 105 05/31 105 0711 2/05 0711 2/05 08/30/05 08/30/05 08/30/05 09/06/05 09/06/05 09/06/05 09/27/05 1 1/29/05 12/06/05 12/06/05 165.72 167.19 168.03 167.34 167.30 168.1 1 162.79 162.44 154.60 149.54 148.01 163.21 45.15 92.41 167.70 163.67 168.28 167.64 2.25 0.81 1.82 0.68 0.67 1.41 1.58 1.48 12.22 18.69 20.92 4.66 135.67 73.97 0.95 1.51 1.14 0.86 Power Outage Power Outage Power Outage Power Outage Power Outage Power Outage Power Outage Power Outage Hurricane Katrina Hurricane Katrina Hurricane Katrina Hurricane Katrina Hurricane Katrina Hurricane Katrina Hurricane Rita Power Outage Planned Maintenance Planned Maintenance AS-7 UH 1 1/29/05 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 98.1 Yo AS-3 61 UA 99.8% AS-7 UH 98.8% 9

+ 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. addition.

GGNS' review identified no missing results.

In 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 Attachment 1 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 (RBS j Environmental Laboratory.

Attaclarnent 1 also contains WBS' results from participation in the interlaboratory comparison program.

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.

11 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. 12 Exposure Pathway Airborne l_____l_ Direct Radiation Table 1.1 Radiological Enviroiimental Sampling Program Requirement - Radioiodine and Particulates 1 sample close to the SITE BOUNDARY having the highest calculated annual average groundlevel DiQ. Radioiodine and Particulates 1 sample from the vicinity of a community having the highest calculated annual average groundlevel D/Q. - Radioiodine and Particulates 1 sample from a control location 15 - 30 km (1 0 - 20 miles) distance.

TLDs An inner ring of stations in the genera.1 areas of the SITE BOUNDARY. Sample Point Description, Distance and Direction AS-7 UH (Sector H, Radius 0.5 Miles) - South-southeast of GGNS at the IBEW Union Hall. AS-1 PG (Sector G, Radius 5.5 Miles) - Southeast of GGNS at the Port Gibson City Barn. AS-3 61VA (Sector t3, 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. Sampling and Collection Frequency Continuous sampler operation with sample collection per 7 days or as required by dust loading, whichever is more frequent 92 days Type and Frequency Of Analyses Radioiodine Canister 131; 7 days Patticulate Sampler - Gross beta radioactivity following filter change, composite (by location)

for gamma isotopic; 92 days Gamma dose; 92 days 13 Exposure Pathway Direct Radiation Table 1.1 Radiological Environmental Sampling Program Requirement TLD:s An inner ring of stations in the general areas of the SITE BOUNDARY.

____ -- TLDis An outer ring approximately 3 to 5 miles from the site. Sample Point Description, Distance and Direction M-21 (Sector J, Radius 0.4 Miles) - Near Former Training Center Building on Bald Hill Road. M-22 (Sector G, Radius 0.5 Miles) - Former RR Entrance Crossing On Bald Hill Road. 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. 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. Sampling and Collection Frequency 92 days Type and Frequency Of Analyses Gamma dose; 92 days 13 Exposure Pathway Direct Radiation Table 1.1 Radiological Environnieiital Sampling Program Requirement TLe)s An outer ring approximately 3 to 5 miles from the site. ____ - TLDs 8 siations in special interest areas such as population centers, nearby residences, schools, and in 1 or 2 areas to serve as control stations.

Sample Point Description, Distance and Direction M-48 (Sector K, Radius 4.8 Miles) - 0.4 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.

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 Y-Camp. (Special Interest)

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

Sampling and Collection Frequency 92 days Type and Frequency Of Analyses Gamma dose; 92 days 15 Exposure Pathway Direct Fiadiation Table 1.1 Radiological Environmental Sampling Program Requirement

-- 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 Sample Point Description, Distance and Direction M-14 (Sector B, Radius 18.0 Miles) - AS 61VA, Hwy 61, North of Vicksburg Airport. (Control) 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)

Sampling and Collection Frequency 92 days Type and Frequency Of Analyses Gamma dose; 92 days 16 Exposure Pathway Waterborne Table 1.1 Radiological Environmental Sampling Program Requirement

~- Surface Water 1 sarnple upstream.

1 sarnple downstream. 1 sample downstream during a Liquid Radwaste Discharge.

1 sarnple from Outfall 007 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. QUTFALL 007 (Sector N, Radius 0.2 Miles) - Storm Drain System 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 17 Table 1.1 Radiological Environmental Sampling Program

Exposure I Pathway 1 Waterborne

~____ Ingestion Requirement Groundwater Samples from 2 sources. - Sediment From Shoreline 1 sarnple from downstream area.

1 sarnple from upstream area. - Milk 1 sample from milking animals within 8 km if milk is available commercially.

1 control sample (only if indicator exists) >8 km if milk is available. 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. Currently, no available milking animals within 8 km of GGNS. ALCONT (Sector K, Radius 10.5 Miles) - Located South-southwest of GGNS at Alcorn State University. Sampling and Collection Frequency 366 days 366 days 92 days when required Type and Frequency Of Analyses Gamma isotopic and tritium analyses; 366 days Gamma isotopic; 366 days Gamma isotopic and 1-131; 92 days 18 Exposure Pathway Ingestion Table 1.1 Radiological Environmental Sampling Program Requirement - Fish 1 sample in vicinity of GGNS discharge point. 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 DiQ if milk sampling is not performed.

1 sample of similar vegetation grown 15 - 30 km distant if milk sampling is not performed. Sample Point Description, Distance and Direction FISHDOWN - Downstream of the GGNS discharge point into the Mississippi River 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. Sampling and Collection Frequency 366 days 92 days when available Type and Frequency Of Analyses Gamma isotopic on edible portion; 366 days Gamma isotopic and 1-131; 92 days 19 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 GGNS did not detect any plant related gamma emitting radionuclides in the quarterly air particulate composites or Iodine- 13 1 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. Air Particulate and Radioiodine Sample Results 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 l0CFR 20.1302(b)(2)(ii).

23 Figure 2- 1 m Wqtr 2000-2005 TLD Readings 16.0 0 X 0 A A A X 12.0 X A ax ax xx 8.0 A 4.0 2000-2004 Control Location kxirmrn (+2 Stdev) 2000-2004 Control Location Mtnirmrn (-2 Stdev) 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.

25 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.

26 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. 27 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 I. Nearest Occupied esidence II. Nearest UnoccupieclResidence (closer than occupied residence)

IHI. Nearest Milk AHzirnal IV. Nearest Broadleaf Garden V. Census Comparison

a. Distance (mile) b. Number of Occupants

c. Degrees from true north a. Distance (mile) a. Distance a. Distance (mile) b. Garden size ift2) c. Decrees from true north a. Is nearest occupied residence in sanie location as last census'? b. Is nearest milk animal in same location as last census'? c. Is nearest broadleaf garden in same location as last ctmsus? Sector E

• 0.89 3 86.9 0.83 None 0.89 =loo0 86.9 No N/A Yes Sector F

• Sector G 101.5 129.7 None I 1.93 UJN 3.81 =1600 114.3 129.1 Yes Yes N/A N/A No Yes Sector H 1.11 6 152.5 1.08 None 1.11 = 500 152.5 Yes N/A 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 Nearest Occupied IV. Nearest Broadleaf Garden a. Distance (mile) 3.16 b. Number of Occupants 2 c. Degrees from true north 174.3 a. Distance (mile) None a. Distance None a. Distance (mile) b. Garden size Cft') c. Degrees from true north 3.16 = 500 174.3 a. Is nearest occupied residence in same location as last census'? b. Is nearest milk animal in same location as last census? c. Is nearest broadleaf garden in same location as last census'? Yes N/A Yes - 'I' Chmge from last census, see attached table of' Land Use Census Changes Sector K

• 2.23 1 196.9 None None 2.23 = 2500 196.9 Yes N/A Yes Sector L* 0.89 2 219.7 None None 0.89 = 300 219.7 Yes N/A Yes Sector M None None None None 30 Table 2-1 Land Use Census Results Parameter I Sector N IV. Nearest Broad.leaf Garden a. Distance (mile) b. Number of Occupants

c. Decrees from true north None a. Distance (mile) 1.61 a. Distance None I a. Distance (milc ) None location 11s last census'? b. Is nearest milk aiiiinal in same location as last census? I :i' Change from last census, see attached table of Land Use Census Changes None None None None 1.46 = 4000 342.9 NIA N/A NIA Yes NIA NIA N/A N/A Yes 31 Land Use Census Changes SECTOR PARAMETER A Nearest Occupied A Nearest Garden E E Unoccunied Residence Residence Nearest OccLipied Re4idence Reason for Change Name Change New nearest garden Moved out from 0.83 miles to 0.89 miles House unoccutied l E I Garden Size 1 More accurate size. now two -500 ft' gardens I F K L Nearest Garden New nearest garden Garden Size More accurate size 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. Attachment 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.

34 TABLE 3.1 Radiological Environmental Monitoring Program Summary Name of Facility:

Grand Gulf Nuclear Station Docket No: 50-416 Reporting Period:

January - December 2005 Location of Facility:

Claiborne County, klissis- Control Locations Mean ( F ) [ Range 1 Number of Nonroutine Results LLD Type & Number of Analyses a Indicator Locations Mean ( F ) [ Range ] Location with Highest Annual Mean Sample Type ( [Jnits ) Mean F ) [ Range 1 0.026 ( 52 152 j [ 0.010 - 0.054 ] Location d [Scctor G. 5.5 mi ) AS-I PG Air Particulates (pCi/m3 ) GB 156 0.029 ( 101 I 10-1 ) [ 0.0 10 - o.os4 ] 0.025 ( 52 152 ) [ 0.01 I - 0.066 ] <LLD <LLD 0.0 I 0.05 0.06 0.07 GS 12 cs- I31 cs- 137 <LLD <LLD NIA NIA N/A NIA Airborne Iodine ( pCi/m3 ) NIA NIA <LLD 0 1-131 156 <LLD Inner King TLDs ( mR/Qtr ) Outer Ring TLDs ( iiiR/Qtr ) Special Interest TLDs ( mR/Qtr ) Control TLDs ( niR/Qtr ) C;allltua 36 Ganlrlla 28 Gnlnlna 28 Gamma 4 9.2 ( 36 I36 ) [ 5.9 - 15.3 1 M-2 1 ( Sector J. 0.4 mi. ) M-57 (Sector F. 4.5 mi.) M-01 ( Sector E, 3.5 mi. ) NIA 13.7 (414 j [ 12.2- 15.3 J 10.2 ( 4 I4 ) [ 9.2 - 1 1.4 ] 10.6 ( 4 14 ) [ 9.7 - 11.5 ] NIA NIA 8.8 ( 281 28 ) 1 5.7 - I 1.4 ] 8.5 ( 28 I28 ) [6.3-11.5]

N/A NIA 9.3 (414) [ 7.9 - 10.8 ] N/A 35 TABLE 3.1 Radiological E~ivironmeatal Monitorine 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 of Analyses a H-3 I0 Ci S 12 1-131 MI\-54 Fe-SC) co-58 CO-60 zn-65 Zr-95 Nh-95 c4- 131 CS- I 37 Ba- 140 La- I40 Indicator Location Mean ( F ) [ Range 1 < LLD <LLD <LILD <LLD <LLD <LL,D <I.LD <LL,D <LLD <LLD .=LL,D <LLD <LLD ~~~~ ~ Location with Highest Annual Mean Location d NIA N/A NIA NIA N/A WIA NIA NIA NIA N/A N/A NIA NIA Mean ( F ) [ Range ] NIA N/A NIA NIA NIA N/A N/A N/A N/A NIA N/A Nlh NIA Control Locations Mean ( F ) Range 1 <LLD <LLD <LLD <LLD

<LLD <LLD <LLD <LLD iLLD <LLD <LLD <LLD <LLD Number of Nonroutine Results 0 0 0 0 0 0 0 0 0 0 0 0 0 36 TABLE 3.1 Sample Type ( tinits ) Groundwater (pCi/l Sediment ( pCi/kg ) 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 Type S: Niimber of Analyses a H-3 1. 1-131 2 C;S 4 MII-54 FC-59 CO-S8 C<)-60 Zn-65 zr-95 Nb-95 cc- 131 cs- 137 Ba- 140 La- I10 GS 4 cs- I33 cs- 137 LLD 2000 1 15 3 0 15 15 30 3 0 15 15 18 60 15 150 180 Indicator Locations RIean ( F ) [ Range 1 <LLD <LLD <LL,D <LI.D <L,LD <L.LD <LLD <L,LD <L,LD <L,LD <L,LD <LLU <I ,LD <LLD Location with Highest Annual Mean Location d N/A NlA NIA NIA NIA N/A N/ A N/A NIA N/A NIA Nlh NIA N/A N/A Mean ( F ) [ Range ] N/A N/A N/A NIA N/A N/A NIA N/A N/A NlA N/A N/A NIA N/A N/A Control Locations Mean ( F 1 [ Range 1 <LLr) <LLD <LLD <LL,D <LLD <LLD <ILD <LL,D <LLD <LLD <LLD <LLD <LLD <LLD <LLD Number of Nonroutine Results 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .? 7 TARLE 3.1 - Sample Type ( IJnits ) Food Products ( pCi/kg ) Radioloaical Environmental Monitoring Propram Summarv Name of Facility: <;-rand Gulf Nuclear Station Docket No: 50-416 Reporting Period: January - December 2005 Location of Facility: Claiborne County, Mississippi Type & Number of Analyses GS 4 Mn-51 Fe-59 CO-S8 co-60 Zn-65 (25- 134 cs- I37 1-131 I 0 c; S 10 cs- 13.1 cs- 137 LLD 130 260 130 130 360 I30 150 Indicator Location Mean ( F ) [ Range 1 <ZLD <LL.D <LLD 4,LD <LLD <LLD <LLD <LLD <L.LD <L,LD Location with Highest Annual Mean Location d N/A NIA NIA NIA NIA NIA N/A NIA NIA NIA Mean ( F ) [ Range 1 N/A NIA Nlh NIA NIA N/A N/A NIA NIA NIA Control Locations Mean ( F ) [ Range 1 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LL,D Number of Nonroutine Results 0 0 0 0 0 0 0 0 0 0 38 TABLE 3.1 Radiological Environmental Monitoring Program Summary Sample Type ( Units ) Venison (Special) ( pcikg Food Products (Special) pCi/Kg Name of Facility:

Grand Gulf Nuclear Station Docket No: 50-416 Location of Facility:

Claiborne Countv, Mississitmi Reporting Period:

January - December 2005 Type & Number of Analyses a GS I Mn-51 Fc-SC) Co-sx CO-60 Zn-65 c\- 131 Ca- 137 1-131 5 GS 5 cs- 131 CIS- I37 LLD b 60 60 8 0 Indicator Location >lean ( F ) [ Range 1 <LLD <LLD <LLD <LLD

<L,LD <L,LD <L,LD <L.LD <L,LD <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. Location with Highest Annual Mean Location d NIA NIA NIA NIA N/A NIA NIA NIA NIA N/A Mean ( F ) [ Range ] NIA NIA NIA NIA NIA NIA NIA NIA NIA N/A Control Locations Mean ( F ) Range 1 NIA NIA NIA NIA NIA NIA NIA <LLD <LLD <LLD \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.

3 9 Attachment 1 Radiological Monitoring Report Summary of Monitoring Results Attachment 1 TABLE 1.1 TABLE 1.2 TABLE 2.1 TABLE 2.2 TABLE 2.3 TABLE 3.1 TABLE 3.2 TABLE 4.1 TABLE 4.2 TABLE 4.3 TABLE 5.1 TABLE 6.1 TABLE 7.4 TABLE 8.1 TABLE 9.1 AIR PARTICULATE FILTER GROSS BETA AND CHARCOAL CARTRIDGE IODINE-131 AIR PARTICULATE FILTER GAMMA THERMOLUMINESCENT DOSIMETERS THERMOLUMINESCENT DOSIMETERS THERMOLUMINESCENT DOSIMETERS SURFACE WATER GAMMA SURFACE WATER TRITIUM GROUNDWATER GAMMA GROUNDWATER TRITIUM GROUNDWATER IODINE-131 SEDIMENT FISH FOOD PRODUCTS SPECIAL SAMPLES INTERLABORATORY CBMPARISBIV 42 51 52 53 54 55 56 57 58 59 60 61 62 63 64 Table 1.1 Sample Type: Air Particulate Filter and Radioiodine Cartridge Analy4s: Gross Beta and I- 13 1 Units: pCi/m' SAMPLE, AS-1 PG - GGNS Nearest Community LLD (pCi/mA3)

AS-1 LAB ID 2005000 1 200500 I9 20050062 2 005 (10 7 0 100500'>6 20050 103 70050 I33 70050 166 20050 188 200507 I4 200502-!0 700502~4 700503 I0 10050334 3)050 372 2 005 ()-LOO 200504 14 ZOO504.34 START DATE 12/28/2004 I /4/'005 1 / 1 1 /2005 1 / 1 8/2005 1 12512005 ?/ 1 /2005 2/8/2005 21 1 5/2005 2/22/2005 31 112005 3/8/2005 i/ 1 moo4 3/22/2005 3/19/2005 4/5/2005 A/ I 2/3005 4/ I 912005 4/26/2005 END DATE I /4/2005 1 1 I 1/2005 1 / I Ki2005 1 /25/2005 21 1/2005 2/8/2005 2/ I 51200s 2/22/2005 31 1 /2005 3/8/2005 311 512005 3/22/2005 3/29/3005 4/5/2005 41 13/2005 4l 19i2005 4/26/2005 5/3/2005 0.07 1-131 < 0.016 < 0.015 < 0.016 < 0.018 < 0.016 < 0.020 < 0.017 < 0.016 < 0.012 < 0.017 < 0.0 I6 < 0.019 < 0.012 < 0.017 < 0.017 < 0.019 < 0.013 < 0.018 0.01 GROSS BETA 0.019 +/- 0.002 0.0 13 +/- 0.002 0.034 +/- 0.003 0.028 +/- 0.002 0.02 1 +/- 0.002 0.01 7 +/- 0.002 0.024 +I- 0.002 0.027 +/- 0.002 0.029 +/- 0.002 0.025 +/- 0.002 0.011 +/- 0.002 0.02 1 +/- 0.002 0.013 +/- 0.002 0.017 +/- 0.002 0.01 6 +/-0.002 0.02 1 +/-0.002 0.01 8 +/-0.002 0.022 +/- 0.002 1 42 START DATE END DATE 5/3/2005 5/1 012005 5/1 712005 512412005 513 I12005 6/7/2005 61 1 -moos 612 112005 612812005 7/5/3005 7/ I 212005 71 1 912005 7/26/2005 81212005 819/300S 81 1 hl2005 812il2005 8/30/2005 9/6/2005 911 712005 51 10/2005 511 712005 5/24/2 O( )5 513 1 12005 61712005 hl I112005 612 1 12005 61281201~5 7/5/2005 71 I 212005 71 1 912005 7/26/2005 Xl212005 81~)12005 XI 1612005 x12312oo.s 817017005 9l612005 91 1 712005 9/2~)/20i~S 0.07 1-13] < 0.016 < 0.015 < 0.016 < 0.014 < 0.014 < 0.014 < 0.01s < 0.034 < 0.014 < 0.018 < 0.015 < 0.017 < 0.014 < 0.016 < 0.016 < 0.015 < 0.070 < 0.058 < 0.020 < 0.017 0.01 GROSS BETA 0.024 +I- 0.003 0.028 +/- 0.002 0.027 +/- 0.002 0.020 +I- 0.002 0.016 +/- 0.002 0.010 +/- 0.002 0.023 +/- 0.003 0.035 +I- 0.002 0.0 18 +/- 0.002 0.01 7 +I- 0.002 0.01 I +/- 0.002 0.020 +/- 0.002 0.024 +/- 0.002 0.026 +/- 0.002 0.025 +/- 0.001- 0.01 8 +/- 0.002 0.048 +/- 0.005 0.054 +I- 0.00 1 0.043 +I- 0.003 0.024 +/- 0.002 2 43 LLD (pCilm"3)

AS-1 LAB ID 2005 1005 2005 1005 118 158 1 04 21'1 2005 2005 2005 2005 2005 298 31.1 347 385 409 Average: hlaxinium Minimum: START DATE END DATE 9/20/2005 9/27/2005 1 C)/4/2005 I o/ 1 1 /2005 I O/ 1 812005 1 0/2s/200s 1 1 /I /2005 1 1 lKi2005 1 1 / 1 Y2005 I 1 /22/2005 I 1/29/2005 12/6/2005 I 2/ 1 312005 I2/20/2005 0.07 1-131 < 0.017 < 0.019 < 0.018 < 0.018 < 0.018 < 0.016 < 0.018 < 0.016 < 0.029 < 0.018 < 0.018 < 0.015 < 0.028 < 0.014 0.01 GROSS BETA 0.028 +/- 0.003 0.026 +/- 0.002 0.0 I9 +/- 0.002 0.049 +/- 0.003 0.041 +/- 0.003 0.028 +/- 0.002 0.029 +/- 0.003 0.028 +/- 0.002 0.033 +/- 0.003 0.03 1 +/- 0.003 0.037 +/-0.003 0.043 +/-0.003 0.03 1 +/- 0.003 0.038 +/-0.003 0.026 0.054 0.010 43 Trrblc 1.1 Sainpk Type: Air Particulate Filter and Radioiodine Cartridge Aiiitlyais:

Gross Beta and 1-1 3 1 units : p~i/iu ' PLE AS-3 6PVA - GGNS - Control START DATE I2/2812004 1 /1/7005 I / 1 1 I2005 1 I1 812005 1125/2005 2/ 11200s 7/8/2005 21 1s12005 2/~'/2005 31 1 /2005 3/8/2005 3/ 1 5/200J 3127/200s 3iZ913005 11512005 41 I2/2005 4 I9/2005 1/76/7005 END DATE I /4/3005 I / 1 1 /7005 1 I1 Xi2005 1 12512005 3-/ 1 /2005 2/1117005 2/15/2005 2/22/2005 3/1/1005 3/Xl'OO5 31 1 5/2005 3/12/2005 .v29/2005 4/512005 1/12/2005 i/ 1 9/2005 1i2612i105 51311-0ij5 0.07 1-131 < il.016 < 0.016 < 0.01 5 < 0.015 < 0.014 < 0.017 < 0.017 < 0.016 < 0.0 I6 < 0.020 < 0.015 < 0.01 6 < 0.017 < 0.016 < 0.017 < 0.018 < 0.015 < 0.017 0.01 GROSS BETA 0.019 +/- 0.002 0.01 3 +/- 0.002 0.032 +/- 0.002. 0.029 +/- 0.002 0.02 1 +/- 0.003 0.01 8 +/- 0.002 0.026 +/- 0.002 0.025 +/- 0.007 0.03 I +/- 0.002 0.023 +/- 0.002 0.0 16 +/- 0.002 0.0 17 +/- 0.002 0.017 +/- 0.002 0.01 6 +I-0.002 0.0 13 +/-0.002 0.020 +/-0.002 0.020 +I-0.00' 0.023 +/- 0.002 LLD (pCi/mA3)

LAB ID START DATE END DATE 5/3/2005 51 1012005 51 I 7/2005 5/24/2005 513 112005 6/7/2005 61 I4/2005 612 1 I2005 6/28/2005 7/5/3005 71 1 2/2005 71 19l2005 7/26/2005 Y/2/2005 8/9/2005 8/ 1 612005 8/23/2005 8/30/2005 9/6/2005 91 I 312005 5/ 1 0/2005 51 1 7/2005 5/24/2005 5/3 11200s 6/7/2005 61 1 moo5 612 112005 6/28/1005 7/5/2005 71 I 212005 71 I WOO5 7/26/2005 8/3/2005 x/9/2005 8/ 1 hi200S 8/23/2005 8/39/2005 C)/h/2005 9/ I 3/2005 9/20/20os 0.07 1-131 < 0.020 < 0.019 < 0.017 < 0.016 < 0.016 < 0.019 < 0.013 < 0.029 < 0.019 < 0.014 < 0.019 < 0.014 < 0.014 < 0.018 < 0.018 < 0.018 < 0.068 < 0.017 < 0.016 < 0.016 0.01 GROSS BETA 0.025 +/- 0.002 0.026 +/- 0.002 0.027 +/- 0.002 0.020 +/- 0.002 0.017 +I- 0.002 0.0 12 +/- 0.002 0.025 +I- 0.002 0.066 +I- 0.003 0.0 16 +/- 0.002 0.0 14 +/- 0.002 0.01 1 +/- 0.002 0.017 +I- 0.002 0.023 +/- 0.002 0.026 +I- 0.002 0.02 I +/- 0.002 0.016 +/- 0.002 0.045 +I- 0.005 0.039 +/- 0.003 0.039 +I- 0.003 0.024 +/- 0.002 46 LAB ID 2005 1007 2005 I Oh8 2005 I I 19 1005 1 15') 3005 1 195 2005 I120 2005 1262 2005 I268 2005 1295 2005 I299 LO05 13-44 2005 17-48 1005 138h 2005 14 10 Average: hIaximurn

~linimum:

START DATE END DATE 9/20/2005 9/27/2005 10/3/2005 101 I I12005 1 O/ 1 8/2005 I0/25/2005 1 1 /I /2005 I 1 /8/2005 1 I / I 5/2005 1 1/22/2005 1 1/39/2005 12/6/200S 121 I3/2005 11/20/2005 9/27/2005 10/4/3005 I o/ 1 1 /2005 1 01 1 8/2005 I0/25/2005 1 11112005 I 1/8/2005 I 1 / I5/2005 1 I /21/2005 1 I/29/2005 12/6/2005 I2/ I woo5 1 2/20/2005 12/27/2005 0.07 1-131 < 0.018 < 0.019 < 0.017 < 0.023 < 0.019 < 0.017 < 0.021 < 0.017 < 0.035 < 0.017 < 0.021 < 0.017 < 0.018 < 0.017 0.01 GROSS BETA 0.026 +/- 0.002 0.022 +/- 0.002 0.0 1s +/- 0.002 0.043 +/- 0.003 0.03% +/- 0.003 0.022 +/- 0.002 0.026 +/- 0.002 0.025 +/- 0.002 0.03 1 +/- 0.003 0.030 +/- 0.003 0.032 +/-0.003 0.041 +/- 0.001 0.029 +/- 0.003 0.036 +/-0.003 0.025 0.066 0.01 1 47 Table 1 . 1 S~umple Type: Air Particulate Filter and Radioiodiiie Cartridve Anal) \is: Gross Beta and I- 13 1 Unit\: pCi/mi SAMPLE AS GGNS - Indicator LLD (PCilIll"3)

LAB ID 2( ~i)SO003 2005002 I 200.50( )64 20050072 20050098 20050 I05 20050 I 15 20050 1 68 20050 I90 200.502 I6 20050242 7_00502S6 LOO503 I2 ?_0050336 20050 1 71 '0050102 .100501 16 ?005013h i\S-7UH START DATE 12/28/2004 1/4/2005 I / I 1 /2005 I / I x/2005 I /25/2005 21 112005 2/8/2005 2/ 1 5/2005 212 212 005 3/ I I2005 1/8/2005 31 15/2004 1/22/2005 3/29/2005 4/5/2005 411 2/2005 4/ I 9/2005 4/2b/2005 ,I END DATE I1112005 I / 1 112005 1 I1 8/2005 1125i21~05 21 112005 2/s/2005 21 1 5/2005 2/22/2005

?I 1 /2005 3/x/2005 Vl512C)OS 3/22/2005 3/29/2005 4/.5/2005 411 212005 411 9/2005 4/26/3005 5/3/2005 0.07 1-131 < 0.018 < 0.015 < 0.017 < 0.016 < 0.015 < 0.015 < 0.016 < 0.018 < 0.013 < 0.010 < 0.020 < 0.017 < 0.016 < 0.017 < 0.01s < 0.015 < 0.015 < 0.017 0.01 GROSS BETA 0.016 +/- 0.002 0.014 +/- 0.002 0.03 1 +/- 0.002 0.028 +/- 0.002 0.01 8 +/- 0.002 0.01 5 +/- 0.002 0.027 +/- 0.002 0.024 +/- 0.002 0.027 +/- 0.002 0.021 +/- 0.002 0.0 16 +/- 0.002 0.020 +/- 0.002 0.012 +/- 0.002 0.019 +/-0.002 0.01 6 +/-0.002 0.019 +/-0.002 0.01 9 +/-0.002 0.02 1 +/- 0.002 1 48 LLD (pCi/mA3)

LAB ID 20050462 20050474 100505 13 20650523 20050560 2005 05 8 5 2005 06 2 x 20050663 20050692 200507 16 20050716 20050772 20050x05 20050826 20050859 200508X 1 20050937 2005092 3 20050958 ?_005098 1 START DATE END DATE 513/2005 5/ 1 012005 5/ I 712005 5/23/2005 513 1 /20os 6/7/2005 h/ 1312005 612 I12005 6/28/2005 7/5/2005 7/ 12/2005 71 I WOO5 7/26/2005 8/2/7005 XI9I2005 8/ 1612005 8/23/2005 X/30/2005 9/6/2005 91 I312005 51 1 012005 51 1 712005 512-112005 513 I 12005 6/7/2005 61 I412005 hi2 112005 612812005 7/5/2005 71 1 2/2005 71 1 912005 7/26/2005 8/3/2005 XI'~l2005 8/ I612005 812312005 8/30/2005 9/6/2005 9/ I 312005 9/20/2005 0.07 1-131 < 0.018 < 0.017 < 0.017 < 0.016 < 0.018 < 0.015 < 0.015 < 0.021 < 0.015 < 0.016 < 0.019 < 0.017 < 0.014 < 0.0 14 < 0.01s < 0.013 < 0.064 < 0.023 < 0.020 < 0.020 0.01 GROSS BETA 0.02s +I- 0.002 0.025 +/- 0.002 0.024 +/- 0.002 0.01 8 +/- 0.002 0.01 3 +/- 0.002 0.012 +/- 0.002 0.022 +/- 0.002 0.035 +I- 0.002 0.020 +I- 0.002 0.016 +/- 0.002 0.01 1 +/- 0.002 0.0 17 +I- 0.002 0.02 1 +/- 0.002 0.027 +/- 0.002 0.024 +/- 0.002 0.017 +I- 0.002 0.041 +I- 0.005 0.042 +/- 0.004 0.039 +/- 0 003 0.023 +I- 0.002 2 49 START DATE END DATE 0.07 1-13] < 0.01 4 < 0.015 < 0.015 < 0.019 < 0.01 7 < 0.016 < 0.018 < 0.013 < 0.029 < 0.016 < 0.020 < 0.018 < 0.027 < 0.013 0.01 GROSS BETA 0.030 +/- 0.003 0.025 +/- 0.002 0.016 +/- 0.002 0.048 +/- 0.003 0.035 +/- 0.003 0.924 +/- 0.002 0.026 +/- 0.002 0.024 +/- 0.002 0.070 +/- 0.002 0.032 +/- 0.003 0.033 +/-0.003 0.04s +/- 0.003 0.03 1 +/- 0.003 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)

LAB ID LOICATION 20050344 20050315 2005014(3 2005Oh94 20050695 10050696 2005 1 13 1 '005 1 112 2005 1 133 2005 I434 2005 1435 2005 1430 AS-l PG AS 3 61VA 4s-7 UH AS 1 PG AS 3 6IVA AS 7 UH AS 1 PG ,4s 36lVA AS 7 UH AS- 1 PG AS-3 6 I VA AS-7 UH DATE 0.05 (3-134 < 0.005 < 0.004 < 0.004 < 0.003 < 0.004 < 0.004 < 0.005 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 0.06 CS-137 < 0.004 < 0.002 < 0.003 < 0.002 < 0.004 < 0.003 < 0.004 < 0.00s < 0.00s < 0.004 < 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-48 7.9 7.9 9.4 9.7 a .7 M-49 9.4 9.0 10.9 11.0 10.1 M-40 5.9 5.7 7.4 7.2 6.6 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-10 7.4 8.6 6.3 7.8 7.5 M-33 8.0 6.3 7.7 7.8 7.5 M-09 7.9 9.1 7.9 9.4 8.6 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: Thermoluminescent Dosimeters 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 iiip 1 e Type : Surface Water An a1 y si 5 : Gamma Isotopic Units: pCi/l SURFACE WATER SAMPLES (GAMMA) - GGNS 1/11/2005

< 12.56 l/512005 < 9.50 4/5/2005 < 9.95 7/12/2005 c 7.32 711717005

< 1 I .66 101 I 1120IJ5 < 1 1 .02 10i1 li2005 < s 57 10/19/2005

< 6.82 15 m-58 < 898 < 1360 < 8 0s < 1244 < 1061 < 5 10 < 10 70 < 907 < I380 < 1040 < h 12 < 772 30 FE-3 < 13.34 < 17.90 < 23.30 < 22.09 < 1.3.84 < 12.79 < 14.26 < 19.92 < 19.4l < 20 46 < 11.2s < 20.5') 30 ZN-65 < 19.52 < 26 62 < 7.3.10 < 2877 < 1952 < 21.88 < 20.13 < 17.20 < 27 57 < 1935 < 16.09 < 1043 15 NB-95 < 11.4.3 < 11.51 < 11.35 < 12.78 < 8.56 < 11.43 < 9.03 < 11.11 < 14.30 < 8.73 < 4.84 < 5.80 30 ZR-95 < 17.45 < 19.71 < li).08 < 15.63 < 12.44 < 14.36 < 13.93 < 15.95 < 17.04 < 15.15 < 14.90 < 15.12 15 15 1-131 CS-134 < 12.06 < 9.79 < 9.85 < 13.04 < 12.81 < 11.52 < 12.44 < 12.53 < 9.69 c: 8.85 < 8.78 < 8.90 < 7.36 < 9.82 < 10.82 < 10.35 < 12.71 < 6.39 < 13.29 < 11.15 < 12.64 < 8.57 < 9.86 < 8.39 18 CS-137 < 11.69 < 1.3.81 < 11.13 < 12.82 < 9.07 < 8.46 < 7.82 < 15.31 < 9.51 < 9.49 < 9.07 < 5.50 60 BA-140 < 28.12 < 42.11 < 34.2s < 46.85 < 28.94 < 28.98 < 26.60 < 22.85 < 37..52 < 34.29 < 36.60 < 34.20 15 LA- 140 < 11.35 < 14.71 < 3.65 < 12.87 < 10.38 < 10.82 < 10.1.3 < 12.9.5 < 7.53 < 6.81 < 14.78 < 12.96 ,:' Aiiiiual 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) LAB ID 20050024 20050026 2005033 1 20050333 200507 I9 2005072 1 2005 I I23 2005 1 I 25 2005 1 167 ' 200s I I69 ': LOCATION MR DOWN MRUP MR DOWN MRUP MR DOWN MRUP MR DOWN MRUP MR DOWN MR DOWN GG DATE 1 I1 I 12005 1 I1 1 I2005 41513-005 41512005 71 1 212005 71 1 213,005 I 0/ 1 I 12005 1 01 1 1 12005 101 1 912005 1 01 1 912005 3000 TRITIUM < 573 < 572 < 563 < 573 < 583 < 578 < 573 < 575 < 587 < 588 'k Annual Sarnplc collccted during liquid discharge "GG" - indicates duplicate samplc. 56 Table 3. I S a1 npI e Type : Groundwater ha1 si s : Gamma Is0 t opi c tinits: pCiA ~~~~~JN~ WATER SA%iPEES (GAMMA) - GGNS 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) LAB ID LOCATION DATE 20051 178 PGWELL 1 0/24/2005 2005 1 I8 1 CONSTWELL 10/24/2005 2005 1 I84 PGWELL 10/24/2005 2005 1 I85 CONSTWELL GG I0/24/2005 2000 TRITIUM < 588.47 < 590.39 < 580.33 < 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 LAB ID L 0 CAT I0 N DATE CS-134 2005 I 170 SEDHAM 101 1912005 < 29.64 20051 I71 SEDCONT 101 I 91200s < 26.42 2005 I 172 SEDCONT GG I 01 I9/2005 < 22.44 2005 1 173 SEDHAM GG 101 1912005 < 29.37 180 CS-137 < 28.12 < 26.00 < 22.53 < 29.00 "GG" - indicates duplicate sample.

60 HI3 SAMPLES (GAMMA) - GGNS ELD ipCi/kg)

L'AB LOCATION 7005075 FISHUP 2005075 FISHUP GG 2005075 FISHDOWN 1005075 FISHDOWN GG 130 130 260 130 260 130 150 DATE NIN-54 c0-58 FE-59 CO-60 ZN-65 CS-134 CS-131 7/15/3005

< 12.87 < 18.12 < 53.35 < 22.XI < 52.61 < 19.55 < 22.13 7/15/2005

< 15.77 < 18.19 < 31.42 < 19.73 < 37.14 < 16.50 < 19.13 7/15/2005

< 13.18 < 20.32 < 51.36 < 26.76 < 40.43 < 24.28 < 19.39 7/15/2005

< I 1.14 < 17.98 < 11.32 < 14.90 < 47.63 < 13.81 < 13.14 "GG" - Indicate4 duplicate sample. 61 Table 7.1 Sai-riple Type: Food Products Analyi4: Iodine- 1.3 1 and Gannia Isotopic Units: pCi/hz EGETATION SAMPLES (GAMMA) - GGNS LAB ID 20050037 2005Of13X 20050019 7 005 O( )40 1005035X 20050.350 20050748 20050719 86 s7 L,OCATION VEG-CON r VEG-J vmcoNr C;G VkGJ GG VEG-C'ONT VEG-J VEG-CONT VEG-J VEG-CONT VEG-J - indicate5 duplicate sample. DATE 1 / 121300-5 1 / 1 212005 1 J 1212005 1 / 1 2/2005 4/5/2005 4/5/2005 71 1 9/2005 71 I9/2005 10/21 /2005 1 012 1/2005 60 1-131 < 13.75 < 48.07 < 34.90 < 49.21 < 5967 < 58.89 < 55.06 < 40.98 < 57.97 < 59.09 60 CS-134 < 51.28 < 50.91 < 48.12 < 56.64 < 57.01 < 47.80 < 22.95 < 49.94 < 53.72 < 34.71 80 CS-137 < 52.48 < 62.99 < 40.75 < 34.19 < 31.81 < 43.23 < 48.18 < 61.63 < 36.30 < 31.11 62 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 ZN-65 CS-134 CS-137 CO-60 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) LAB ID I ,OC'ATION 6 0 DATE 1-131 ?005004 I VEC-SPECIAL, 1 / 1 212005 < 33.h1 20050032 VEG-SPECIAL GG 1 / 12/200.5 < 33.h5 200503hO VEG-SPECIAL 4/5/2005 < 48.87 200.50750 VEG-SPECIAL 7/ 19/2005 < 24 1s 310.5 1 1 X8 VEG-!ZPECIAL 1 0/2 1 PO05 < 56.98 60 CS-134 < 41.56 < 26.25 < 42.20 < 20.25 < 30.13 88) CS-137 < 40.82. < 38.36 < 47.98 < 29.78 < 40.99 "GG" - inclicate4 duplicate sample.

63 Table 9.1 Sample Type: Interlaboratory Comparison Analysis: Gross Beta, Tritium, Iodine-13 1 and Gamma Isotopic Date 6/9/2005 Sample Type (units) Charcoal Cartridge (pCi/filter)

Water Analysis Known Measured N- N- val ue(a) Value DEV(b) RANGE(c) 1-131 91.7 96.3 0.88 0.386 (pCi/l iter) 61912005 6/9/2005 Air Filter (pCi/filter)

BETA 21 4 232 1.48 0.055 CR-51 330 347 0.89 0.251 Sediment (pCi/gram)

H-3 BETA CR-51 MN-54 9/15/2005 911 512005 911 512005 Sample Number E4570-125 41 90 4337 0.61 0.152 95.8 94.2 -0.29 0.253 237 209 -2.05 0.548 64.5 65.3 0.21 0.449 E4569-125 E4568-125 E4719-125 E4717-125

• 4720-1 25 E4718-125 (pcilliter)

Analytks # E4571-125 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.

range; +2.000 is the warning limit and

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

65