ML071200209: Difference between revisions

From kanterella
Jump to navigation Jump to search
(Created page by program invented by StriderTol)
(Created page by program invented by StriderTol)
 
Line 1: Line 1:
{{Adams
#REDIRECT [[GNRO-2007/00024, Annual Radiological Environmental Operating Report (AREOR)]]
| number = ML071200209
| issue date = 04/30/2007
| title = Grand Gulf, 2006 Annual Radiological Environmental Operating Report (AREOR)
| author name = Bottemiller C A
| author affiliation = Entergy Operations, Inc
| addressee name =
| addressee affiliation = NRC/Document Control Desk, NRC/NRR/ADRO
| docket = 05000416
| license number = NPF-029
| contact person =
| case reference number = GNRO-2007/00024
| document type = Annual Operating Report, Environmental Report, Letter
| page count = 68
}}
 
=Text=
{{#Wiki_filter:Entergy Operations, Inc.
PO. Box 756 Port Gibson. MS 39150 Tel 601 437 6299 Charles A. Bottemiller Manager Plant Licensing - Waterloo Road -- Entwgy GN RO-2007/00024 April 30, 2007 U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Attention: Document Control Desk
 
==Subject:==
Grand Gulf Nuclear Station (GGNS) 2006 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 Radiolouical Environmental Operatinu Report for the period January 1,2006 through December 31,2006. 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, A CAB/MJL attachment:
cc: (See Next Page) 2006 Annual Radiological Environmental Operating Report April 30, 2007 Page 2 of 2 GNRO-2007-00024 cc: NRC Senior Resident Inspector Grand Gulf Nuclear Station Port Gibson, MS 39150 U. S. Nuclear Regulatory Commission ATTN: Dr. Bruce S. Mallet (WE) 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, NRR/DLPM (WE) ATTN: ADDRESSEE ONLY ATTN: U. S. Postal Delivery Address Only Mail Stop OWFN/
0-7D1A Washington, DC 20555-0001 ENTERGY OPERATIONS, INC. GRAND GULF NUCLEAR STATION ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT January 1,2006-December 31,2006 Prepared By Approved By TABLE OF CONTENTS
 
==SUMMARY==
6 1 .O INTRODUCTION 1 .I 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 34 35 35 2 TABLE 1.1 TABLE 2.1 TABLE 3.1 LIST OF TABLES RADIOLOGICAL ENVIRONMENTAL SAMPLING PROGRAM LANDUSECENSUSRESULTS RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
 
==SUMMARY==
 
13 29 36 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, 2006 through December 31, 2006. 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 direct radiation, 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 compared favorably to those from the GGNS REMP. GGNS TLD results remain similar to the historical average and continue to verify that plant operation is not affecting the ambient radiation levels in the environment.
The MSDH and the GGNS REMP entail similar radiological environmental monitoring program requirements. These programs include concurrent air sampling and splitting or sharing sample media such as water, sediment, fish and food products. Both programs have obtained similar results over previous years. The results of MSDH's monitoring program for the reporting period compared favorably with the GGNS REMP and did not indicate elevated levels of radiation or radioactivity build-up attributed to plant operations.
7 Sample Deviations 4 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.
4 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.
Out-of- Sample Date In Date Out RunTime service Comments Location hours hours AS-7 UH 0 1 /I 0/06 0 1 /I 7/06 166.95 1.02 Power Outage AS-1 PG 01 131 /06 02/07/06 165.46 2.54 Power Outage AS-7 UH 02/07/06 0211 4/07 167.29 0.93 Power Outage AS-7 UH 03/07/06 0311 4/06 157.38 8.69 Power Outage AS-7 UH 0311 4/06 03/21 /06 166.56 1.41 Power Outage AS-7 UH 04/25/06 05/02/06 166.24 0.78 Power Outage AS-7 UH 07/04/06 07/11 106 165.18 0.79 Power Outage AS-7 UH 0711 8/06 07/25/06 166.64 3.53 Power Outage AS-3 61VA 07/18/06 0 7/2 5/06 150.14 20.29 Power Outage AS-1 PG 07/25/06 08/0 1 /06 165.83 1.52 Power Outage AS-7 UH 08/22/06 08/29/06 166.14 2.01 Power Outage AS-7 UH 10/03/06 10/10/06 162.91 0.81 Power Outage AS-7 UH 1 1 /I 4/06 11/21/06 158.67 2.23 Power Outage to Based on the sample collection period reductions, air samples were collected the following percentages of the available time:
AS-I PG 99.95% AS-3 61VA 99.77% AS-7 UH 98.57% + TLDs TLD station M-49 (Outer Ring, Sector H, Radius 4.5 Miles) was displaced fkom its designated location by unknown causes during the lst quarter of 2006. This data was excluded from reporting. Although the 1'' quarter exposure at location M-49 is unknown, GGNS ' review of results for similarly located TLDs indicated no abnormal readings.
TLD station M-17 (Inner Ring, Sector C, Radius 0.5 Miles) was noted as wet when collected for the 3rd quarter monitoring period. GGNS' review of results for similarly located TLDs indicated no abnormal readings. The 3'd quarter reading at location M-17 was consistent with previous and subsequent readings and the data was included in this report. 9 Missed Samples One sample was missed due to a loss of a TLD. See page 9 of this report for additional information.
Unavailable Results GGNS received analytical results in adequate time for inclusion in this report.
addition, GGNS' review identified no missing results.
In Program Rlodifications No program modifications occurred during the reporting period. 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) Environmental Laboratory. Attachment 1 also contains RBS' results from participation in the interlaboratory comparison program.
10 
 
===1.0 Introduction===
 
===1.1 Radiological===
Environmental Monitoring Program GGNS established the REMP to ensure that plant operating controls properly function to minimize any associated radiation 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 identifylng physical and biological accumulations that may contribute to human exposures.
Considering the potential radiation exposure to plant and animal life in the environment surrounding GGNS . 0 Correlating levels of radiation and radioactivity in the environment with radioactive releases
&om 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 shown in Figures 1-2 and 1-3. GGNS may supplement this program with additional sampling in order to provide a comprehensive and well-balanced program. Section 2.0 of this report provides a discussion of sampling results with Section
 
===3.0 providing===
a summary of results for the monitored exposure pathways.
11 1.3 Land Use Census GGNS personnel conduct a land use census biannually, as required by ODCM Specification 6.12.2. Data for the most recent land use census is included. The purpose of this census is to identify changes in uses of land withn 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 m (500 ft ) producing broadleaf vegetation.
2 2 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: 9 Nearest permanent residence 9 Nearest unoccupied residence 9 Nearest garden and approximate size 9 Nearest milking animal.
0 Identifylng 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 Pathway Airborne Direct Radiation Table 1.1 Radiological Environmental Sampling Program Requirement Radioiodine and Particulates 1 sample close to the SITE BOUNDARY having the highest salculated annual average groundlevel D/Q. 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 (I0 - 20 miles) distance.
TLDs An inner ring of stations in the general 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 B, Radius 18 Miles) - North-northeast of GGNS on Hwy 61, North of the Vicksburg Airport.
M-16 (Sector A, Radius 0.9 Miles) - Meteorological Tower. M-17 (Sector C, Radius 0.5 Miles) - South Side, Grand Gulf Road. M-19 (Sector E, Radius 0.5 Miles) - Eastern SITE BOUNDARY Property line, North-northeast of HWSA. 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 Cannister 131; 7 days Particulate Sampler - Gross beta radioactivity following filter change, composite (by location) for gamma isotopic; 92 days Gamma dose; 92 days 13 Exposure Pathway Direct Radiation Requirement TLDs An inner ring of stations in the general areas of the SITE BOUNDARY.
TLDs An outer ring approximately 3 to 5 miles from the site.
Table 1.1 Radiological Environmental Sampling Program 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 14 Exposure Pathway Direct Radiation Table 1.1 Radiological Environmental Sampling Program Requirement TLDs An outer ring approximately 3 to 5 miles from the site.
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-48 (Sector K, Radius 4.8 Miles) - 0.4 Miles South on Mont Gomer Road on West Side. M-49 (Sector H, Radius 4.5 Miles) - Fork in Bessie Weathers RoadlShaifer Road.
M-50 (Sector B, Radius 5.3 Miles) - Panola Hunting Club Entrance.
M-55 (Sector D, Radius 5.0 Miles) - Near Ingelside Karnac Ferry Road/Ashland Road Intersection.
M-57 (Sector F, Radius 4.5 Miles) - Hwy 61, Behind the Welcome to Port Gibson Sign at Glensdale Subdivision.
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-I 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 Radiation 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 sample upstream. 1 sample downstream.
1 sample downstream during a Liquid Radwaste Discharge.
1 sample 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. OUTFALL 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 Exposure Pathway Waterborne Ingestion Table 1.1 Radiological Environmental Sampling Program Requirement Groundwater Samples from 2 sources.
Sediment From Shoreline 1 sample from downstream area.
1 sample 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 Pathway I Ingestion Table 1.1 Radiological Environmental Sampling Program Requi rernent ~~ - 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 D/Q if milk sampling is not performed.
1 sample of similar vegetation grown 15 - 30 km distant if milk sampling is not performed.
Sample PoirDescrGtion, 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.
VEGJ (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 s-3 s-4 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 Sector B, 0.7 mi. Sector D. 0.8 mi.
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.
s-5 S-6 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.
Sector H, 0.5 mi. Sector K. 0.4 mi. GGNS' comparison of the indicator results to the control and to previous indicator results, as seen in Figure 2-1 and Table 3.1, indicates that plant operations had no significant impact on ambient radiation levels during the reporting period. Six special TLD locations [S-2 through S-71 were included in this monitoring period. This additional monitoring serves to characterize the effect of hydrogen injection, described hrther in the following paragraph.
1 TLD I Location I I S-2 I Sector F, 0.5 mi I I s-7 1 Sector C, 0.6 mi. 23 Hydrogen injection into the feedwater system provides protection against Intergranular Stress Corrosion of plant components. With the exception of TLD locations M-21 (Sector J, 0.4 miles) and S-6 (Sector K, 0.4 miles), direct radiation levels continue to remain at or near background.
The dose rate at these two locations is caused by increased Nitrogen-16 levels associated with hydrogen injection as discussed above. Dose rates for locations M-21 [3.8 millirem per quarter]
and S-6 [3.8 millirem per quarter] above Control location M-14 (sector B, 18.0 miles) remain well below the limitations of 10 CFR 20.1301(a)(l) and 10CFR 20.1302(b)(2)(ii).
Figure 2-1 mWqtr 2001-2006 TLD Readings 20.0 16.0 12.0 8.0 4.0 R A x X 0 + Qtr 1,2006 0 Qtr 2, 2006 A Qtr 3, 2006 x Qtr 4, 2006 0.0 I 2001-2005 Control Location Maxirmrn (+2 Stdev) 2001 -2005 Control Location Minirmm (-2 Stdev) 24 
 
===2.3 Water===
Sample Results Surface water samples were collected from three indicator and one control location and analyzed for ganma emitting radionuclides and tritium. Plant related gamma emitting radionuclides and tritium remained undetectable in the upstream and downstream Mississippi River locations, which is consistent with preoperational and previous operational years. Storm waters contribute to Outfall 007 and can include tritium as a result of washout and entrainment of routine, previously monitored gaseous effluents.
As a result, tritium levels below the minimum detection level requirement are occasionally observed. Tritium was detected at an average concentration of 678 k 260 pCi/L in the Outfall 007 (indicator) location.
In addition to the tritium samples required by the REMP, five special surface water samples for gamma were collected at the Outfall 007 location. Plant related gamma emitting radionuclides remained undetectable in these samples. Based on review of results and historical data, GGNS concluded that plant operations had no significant impact on this pathway during the reporting period.
Groundwater samples were collected from two locations (indicator and control) and analyzed for gamma emitting radionuclides and tritium. GGNS did not detect any plant related gamma emitting radionuclides or tritium in groundwater samples during the reporting period. Based on review of results and historical data, GGNS concluded that plant operations had no significant impact on this pathway during the reporting period.
 
===2.4 Sediment===
Sample Results Sediment samples were collected from two ODCM Specification locations (indicator and control) and analyzed for gamma emitting radionuclides.
In this reporting period, plant related gamma emitting radionuclides were below detectable concentrations in the upstream (control) location. Cesium-1 37 was detected at an average concentration of 43.3 k 14 pCi/kg in the downstream (indicator) location.
A review of REMP data collected at the downstream location from 1983 through 2005 indicates the Cesium-137 concentration has ranged from less than detectable to 300 pCi/Kg. Cesium-1 37 has previously been detected in the upstream (control) location. The presence of Cesium- 13 7 is attributed to atmospheric weapons testing. Based on review of results and historical data, 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 milking animals.
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 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. One sample of vegetation was collected at an onsite location to supplement the REMP. GGNS did not detect any plant related gamma emitting radionuclides in this vegetation sample during the reporting period. One sample of venison was collected on the GGNS property to supplement the REMP. GGNS did not detect any plant related gamma emitting radionuclides in this venison sample during the reporting period.
26 2.8 Land Use Census Results The most recent Land Use Census was performed from 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: Name of occupant Address Number of people residing at residence Age group of occupants Any farm animal raised for human consumption Any dairy production Maintain a garden Changes from the previous Land Use Census were evaluated in accordance with GGNS surveillance 06-EN-S000-0-0002 sections 5.1.3 .b(2) and 5.2. 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 are more conservative than any of the changes.
Other determinations from the previous Land Use Census results are:
0 0 0 0 0 The child age group with the highest dose commitment is in Sector A (North) at 1.78 miles, GGNS ODCM calculations currently uses the maximum calculated dose from either Sector L (Southwest) at 0.89 miles or Sector C (Northeast) at 0.67 miles. Doses calculated at Sector A would be lower. One location recorded as occupied in the previous land use census is now unoccupied, sector E (East) at 0.83 miles.
Because of downwind location and/or distance from the site, in no case will the occupancy of an existing unoccupied residence cause any ODCM critical receptor calculation results to be less conservative.
No additional sampling locations are required as the onsite gardenhegetation sampling location (Sector J, 0.4 miles) is more conservative than changes identified in the land use census.
Cattle are raised for human consumption (most notably Sector H, J, and K). GGNS uses the Grass/Cow/Meat pathway.
27 0 The milk pathway does not need to be activated, no commercial dairy production is occurring within 5 miles. Resident in Sector F occasionally milks cows for consumption if the cow is producing too much milk for the calf.
This is not commercial dairy production as referenced by ODCM Table 6.12.1 - 1 ; therefore, the milk pathway does not need to be activated.
0 Sectors M, N, P, and Q are remote areas in which the primary use is hunting. Area was surveyed by vehicle and aerial photographs. Also, all areas in Louisiana within 5 miles belong to the "Winter Quarters" exclusive hunting club. From the previous census, personnel at entrance gate were interviewed and responded, "No permanent residence or gardens, the area is posted". 0 Gardens, regardless of size, were included in the census data.
28 Parameter
[. Nearest Occupied Residence
: b. Number of Occupants
[I. Nearest Unoccupied Residence (closer than occupied residence) 111. Nearest Milk Animal IV. Nearest Broadleaf a. Distance (mile)
: c. Degrees from true north a. Distance (mile)
: a. Distance a. Distance (mile)
Garden b. Garden size (ft2) c. Degrees from true north V. Census Comparison
: 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?
29 Sector A
* Sector B Sector C Sector D 0.98 0.83 0.67 2.57 2 2 2 6 354.0 15.1 42.1 60.5 0.94 None None None None None None None 1.78 1.52 0.67 2.86 = 1200 = 4050 o 1250 = 500 352.2 21.9 42.1 59.7 Yes Yes Yes Yes NIA NIA NIA NIA No Yes Yes Yes Table 2.1 Land Use Census Results Parameter Sector E
* I  sector^*
I Sector G I SectorH I. Nearest Occupied Residence
: 11. Nearest Unoccupied Residence (closer than occutied residence)
: a. Distance (mile)
: b. Number of Occupants 111. Nearest Milk Animal 0.89 2.25 2.10 1.11 3 2 3 6 IV. Nearest Broadleaf Garden c. Degrees from true north
: a. Distance (mile)
: a. Distance V. Census Comparison 86.9 101.5 129.7 152.5 0.83 None 1.93 1.08 None None None None a. Distance (mile)
: b. Garden size (ft2)
: c. Degrees from true north
: 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? 0.89 4.05 86.9 114.3 =loo0 =50 . No Yes NIA NIA Yes No 3.81 s1600 129.1 1.11 = 500 152.5
* Change from last census, see attached table of Land Use Census Changes 30 Table 2.1 Land Use Census Results s Parameter I. Nearest Occupied a. Distance (mile)
: c. Degrees fiom true north Residence
: b. Number of Occupants
: 11. Nearest a. Distance (mile)
Sector J 3.16 2 174.3 None UnoccupiedResidence (closer than occupied 0.89 2 219.7 None None 0.89 = 300 219.7 None None None None Sector K * ~ residence) 111. Nearest Milk Animal IV. Nearest Broadleaf Garden V. Census Comparison 2.23 1 196.9 None a. Distance None
: a. Distance (mile) 3.16
: b. Garden size (ft2)
= 500 c. Degrees from true north 174.3 a. Is nearest occupied residence in same location as last census? Yes
: b. Is nearest milk animal in same location as last census?
NIA c. Is nearest broadleaf garden in same location as last census?
Yes None Yes 2.23 = 2500 196.9 NIA Yes N!A Yes Sector L* I Sector M Yes NIA N!A N/A 31 Table 2.1 Land Use Census Results meter a. Distance (mile)
: b. Number of Occupants c. Degrees from true north
: a. Distance (mile) Par 1. Nearest Occupied Residence Sector N Sector P Sector Q Sector R None None None 1.11 2 346.1 1.61 4.83 3.5 None [I. Nearest UnoccupiedResidence (closer than occupied residence)
: a. Distance (mile) b. Garden size (ft2)
: c. Degrees from true north
: 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?
111. Nearest Milk Animal None None NIA NIA NIA NIA NIA N/A IV. Nearest Broadleaf Garden V. Census Comparison I None a. Distance I None None None I None NIA NIA NIA 1 1.46 x. 4000 342.9 Yes NIA Yes
* Change from last census, see attached table of Land Use Census Changes 32 Land Use Census Changes SECTOR A A PARAMETER Reason for Change Nearest Occupied Name Change Residence Nearest Garden New nearest garden E E E F K L Nearest Occupied I Moved out from 0.83 miles to 0.89 miles 1 Residence Unoccupied Residence House unoccupied Garden Size Nearest Garden New nearest garden Garden Size More accurate size Garden Size More accurate size More accurate size, now two =500 ft2 gardens 33 
 
===2.9 Interlaboratory===
Comparison Results River Bend Station (RI3S) 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 98% of results were within control limits for accuracy, and 100% of results were within control limits for precision.
34 
 
===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.
35 TABLE 3.1 Radiological Environmental Monitoring Program Summary Name of Facility:
Grand Gulf Nuclear Station Docket No: 50-416 Location of Facility:
Claiborne Countv, Mississipr>i Type & Number of Analyses a GB 156 GS 12 (3-134 (3-137 1-131 156 Gamma 36 Gamma 27 Gamma 28 Gamma 4 LLD 0.01 0.05 0.06 0.07 Indicator Locations Mean ( F ) [ Range I 0.027 ( 104 I 104 ) [ 0.013 - 0.048 3 <LLD <LLD <LLD 9.4 ( 36 I 36 ) [ 6.8 - 14.3 ] 9.1 (27127) [ 6.2 - 11.6 ] 8.6 ( 28 1 28 ) [6.7-11.31 NIA Reporting Period:
January - December 2006 Location with Highest Annual Mean Location d (Sector G, 5.5 mi ) AS-1 PG NIA NIA NIA M-2 1 (Sector J, 0.4 mi. ) M-57 (Sector F, 4.5 mi.) M-0 1 (Sector E, 3.5 mi. ) NIA Mean (F) [ Range ] 0.027 ( 52 152 ) [ 0.015 - 0.048 ] NIA NIA NIA 13.5 (414) [ 12.6 - 14.3 ] 10.7 (4 14 ) [ 9.6- 11.61 10.2(4/4)
[ 9.5 - 11.3 ] NIA Control Locations Mean (F) [ Range 1 0.026 ( 52 152 ) [ 0.013 - 0.042 ] <LLD <LLD <LLD NIA NIA NIA 9.7 (4 i 4) [ 8.9 - 10.7 ] Number of Nonroutine Results 0 36 TABLE 3.1 Radiological Environmental Monitoring Proeram Summary Sample Type ( Units ) Surface Water ( PCU 1 Name of Facility:
Grand Gulf Nuclear Station Docket No: 50-416 Location of Facility: Claiborne Countv, Mississippi Reporting Period: January - December 2006 Type 8z Number of Analyses a H-3 24 GS 10 1-131 Mn-54 Fe-59 co-58 CO-60 Zn- 6 5 Zr-95 Nb-95 (3-134 (3-137 Ba-140 La- 140 LLD 3000 15 15 30 15 15 30 30 15 15 18 60 15 Indicator Location Mean (F) [ Range 1 678 ( 5 I 19 ) [ 354 - 1220 3 <LLD <LLD <LLD <LLD
<LLD <LLD <LLD
<LLD
<LLD <LLD <LLD <LLD Location with Highest Annual Mean Location d Outfall 007 ( Sector N, Radius 0.2 mi.) NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA Mean(F)C [ Range 1 678 ( 5 113 ) [ 354 - 1220 ] NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA Control Locations Mean ( F ) Range 1 ~ <LLD <LLD <LLD
<LLD <LLD
<LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Number of Nonroutine Results 0 0 0 0 0 0 0 0 0 0 0 0 0 37 TABLE 3.1 RadioloPical Environmental MonitorinP Program Summary Name of Facility:
Grand Gulf Nuclear Station Docket No: 50-416 Location of Facility:
Claiborne County, Mississippi Reporting Period: January - December 2006 Type & Number of Analyses a H-3 2 1-131 2 GS 4 Mn-54 Fe-59 CO-58 CO-60 Zn-65 Zr-95 Nb-95 CS-134 (3-137 Ba- 140 La- 140 GS 4 (3-134 (3-137 LLD 2000 1 15 30 15 15 30 30 15 15 18 60 15 150 180 Indicator Locations Mean (F) 1 Range I <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD 43.32 (2I2) [ 35.99- 50.64
] Location with Highest Annual Mean Location d NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA SEDHAM (Sector N, 1.6 mi. ) Mean (F) [ Range ] NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA 43.32 (212) [ 35.99- 50.64
] Control Locations Mean (F) I Range 1 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <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 38 TABLE 3.1 Radioloeical Environmental Monitoring Provram Summary Name of Facility:
Grand Gulf Nuclear Station Docket No: 50-416 Location of Facility: Claiborne County, Mississimi Reporting Period: Januarv - December 2006 Indicator Location Location with Highest Annual Mean Control Locations Number of Mean (F) Mean ( F ) Nonroutine
[ Range 1 [ Range 1 Results Mean (F) Location d
[ Range ] <LLD <LLD <LLD <LLD <LLD <LLD <LLD NIA NIA NIA NIA NIA NiA NIA NIA NIA NIA NIA NIA NIA ~ NiA <LLD <LLD <LLD
<LLD <LLD <LLD
<LLD <LLD NiA N/A <LLD 0 9.4 ( 24 i 24 ) S-6 13.5 (4 I4 ) 9.7(414) [ 5.5 - 14.2 1 ( Sector K, 0.4 mi. ) [ 12.5 - 14.2 ] [ 8.9 - 10.7 ] 0 <LLD NIA NIA <LLD 0 <LLD N/A NIA <LLD 0 <LLD NiA NIA <LLD 0 39 TABLE 3.1 La- 140 Radiological Environmental Monitorine Program Summarv 15 Sample Type ( Units ) Venison (Special) ( Pcm 1 Surface Water (Special) ( PC8 1 Name of Facility:
Grand Gulf Nuclear Station Docket No: 50-416 Location of Facility: Claiborne County, Mississiwi Reporting Period: Type & Number of Analyses a GS 1 Mn-54 Fe-59 CO-58 CO-60 Zn-65 CS- 134 (3-137 GS 5 1-13 1 Mn-54 Fe-59 Co-58 CO-60 Zn-65 Zr-95 Nb-95 CS-134 '3-137 Ba- 140 LLD 130 260 130 130 260 130 150 15 15 30 15 15 30 30 15 15 18 60 Indicator Location Mean (F) 1 Range I <LLD <LLD <LLD <LLD
<LLD <LLD <LLD <LLD <LLD
<LLD <LLD
<LLD <LLD <LLD <LLD <LLD
<LLD <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 . NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA Mean (F) [ Range ] NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA Control Locations Mean (F) [ Range I NIA NIA NIA NIA NIA NIA NIA <LLD <LLD
<LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD
<LLD Number of Nonroutine Results 0 0 0 0 0 0 0 0 0 0 0 0 Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parenthesis (F). Where 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.
40 Attachment 1 Radiological Monitoring Report Summary of Monitoring Results 41 TABLE OF CONTENTS TABLE 1.1 TABLE 1.2 TABLE 2.1 TABLE 2.2 TABLE 2.3 TABLE 2.4 TABLE 3.1 TABLE 3.2 TABLE 4.1 TABLE 4.2 TABLE 4.3 TABLE 5.1 TABLE 6.1 TABLE 7.1 TABLE 8.1 TABLE 9.1 AIR PARTICULATE FILTER GROSS BETA AND CHARCOAL CARTRIDGE IODINE-I31 AIR PARTICULATE FILTER GAMMA THERMOLUMINESCENT DOSIMETERS THERMOLUMINESCENT DOSIMETERS THERMOLUMINESCENT DOSIMETERS THERMOLUMINESCENT DOSIMETERS SURFACE WATER GAMMA SURFACE WATER TRITIUM GROUNDWATER GAMMA GROUNDWATER TRITIUM GROUNDWATER IODINE-I31 SEDIMENT FISH FOOD PRODUCTS SPECIAL SAMPLES INTERLABORATORY COMPARISON 43 52 53 54 55 55 56 57 58 59 60 61 62 63 64 65 42 Table 1 .I Saniplc 'Type: Air Particulate Filter and Kadioiodine Cartridw Analysis:
Gross Beta and 1-1 3 1 IJnits: pCi/m' AIR SAMPLE AS-1 PG - GGM Nearest Community LLI) (pCilm"3)
AS-1 LAB ID S'IAKI' ilA'YE EKI) DA'I'E 20060008 20060026 20060058 20060085 20060121 200601 56 20060198 200602 18 20060244 20060269 20060294 200603 16 20060348 20060387 20060436 20060462 20060494 20060527 20060549 20060564 12/27/2005 1/3/2006 1/ 10/2006 1 11 712006 1/24/2006 113 112006 2/7/2006 2/1412006 212 1 I2006 2/28/2006 3/7/2006 311412006
 
3/21/2006 3/28/2006 4/4/2006 411 112006 411812006 412512006 5/2/2006 5/9/2006 1/3/2006 111 012006 111 712006 1/24/2006 1/31/2006 21712006 21 1412006 212112006 2/28/2006 3/7/2006 3/14/2006 3/21/2006 312812006 4/4/2006 4l1112006 411 812006 412512006 51212006 5/912006 5/16/2006 0.07 1-131 < 0.020 < 0.018 < 0.016 < 0.015 < 0.015 < 0.018 < 0.022 < 0.018 < 0.018 < 0.018 < 0.014 < 0.020 < 0.017 < 0.016 < 0.012 < 0.019 < 0.019 < 0.019 < 0.017 < 0.015 0.01 GROSS BETA 0.035 +I- 0.003 0.028 +I- 0.002 0.024 +/- 0.002 0.028 +I- 0.003 0.024 +I- 0.002 0.019 +/- 0.002 0.022 +/- 0.002 0.021 +/- 0.002 0.025 +J- 0.002 0.033 +I- 0.003 0.026 +i- 0.003 0.024 +i- 0.002 0.017 +I- 0.002 0.023 +/- 0.002 0.029 +i- 0.003 0.026 +I- 0.002 0.026 +/- 0.003 0.026 +I- 0.002 0.022 +I- 0.002 0.020 +I- 0.002 43 LLD (pCi/mA3)
AS-1 PG LAB ID 20060584 20060594 20060618 20060653 20060684 20060705 20060742 2006077 1 20060795 20060827 20060 8 54 20060863 20060898 20060914 20060943 20060950 20060976 20061 009 20061 032 20061062 20061 115 20061 136 START DATE END DATE 511 612006 512312006 513012006 61612006 611312006
 
612012006 612712006 71412006 711 112006 711812006 712512006 81112006 81712006 8A412006 8!22/2006 812912006 91512006 911212006 911912006 912612006 10l3l2006 1011012006 512312006 513012006 61612006 611 312006 612 01200 6 612712006 71412006 71 1 1 I2006 711 812006 712512006 81 1 12006 8/7/2006 811412006 812212006 812 912006 91512006 91 1212006 91 1912006 912612006 1013l2006 101 1012006 101 1712006 0.07 1-131 < 0.014 < 0.01s < 0.017 < 0.014 < 0.020 < 0.016 < 0.015 < 0.024 < 0.019 < 0.014 < 0.016 < 0.018 < 0.017 < 0.018 < 0.015 < 0.015 < 0.017 < 0.022 < 0.015 < 0.018 < 0.019 < 0.020 0.01 GROSS BETA 0.026 +I- 0.002 0.024 +/- 0.002 0.027 +I- 0.003 0.038 +I- 0.003 0.030 +/- 0.003 0.026 +I- 0.002 0.030 +/- 0.003 0.018 +l- 0.002 0.025 +I- 0.002 0.025 +/- 0.002 0.015 +I- 0.002 0.031 +I- 0.003 0.015 +/- 0.002 0.035 +I- 0.003 0.019 +I- 0.002 0.028 +I- 0.002 0.041 +/- 0.003 0.024 +I- 0.002 0.024 +I- 0.002 0.038 +I- 0.003 0.048 +/- 0.003 0.034 +I- 0.003 2 44 LLD (pCilm"3) AS-1 PG LAB ID 2006 1 176 2006 1205 20061232 2006 1244 2006 1262 20061298 2006 1327 20061345 20061 378 200614 10 Average: Maximum Minimum: START DATE END DATE 1 Oil 712006 10/24/2006 1012412006 10/31/2006 1013112006 111712006 11/7/2006 1111412006 11114/2006 1112112006 11/2112006 11/28/2006 1112812006 12/4/2006 12/4/2006 121 1212006 1211 212006 1211 912006 1211 912006 12/27/2006 0.07 1-131 < 0.023 < 0.015 < 0.017 < 0.020 < 0.017 < 0.016 < 0.029 < 0.019 < 0.021 < 0.013 0.01 GROSS BETA 0.023 +/- 0.002 0.032 +I- 0.003 0.027 +I- 0.003 0.025 +I- 0.002 0.036 +/- 0.003 0.034 +I- 0.003 0.024 +I- 0.003 0.03 1 +I- 0.001 1 0.029 +I- 0.001 1 0.027 +I- 0.0010 0.027 0.048 0.0 15 45 Table 1.1 Sample 'Pypc: Air Particulate Filter and Radioiodine Cartridge Analysis:
Cross Beta and 1-13 1 Units: pC:i/m' AIR SAMPLE AS-3 61VA - GGNS - Control l,l,ll (pCUm''3) 1,AR 11) 20060009 20060027 20060059 20060086 20060122 200601 57 20060 199 200602 19 20060245 20060270 20060295 200603 17 20060349 20060388 20060437 20060463 20060495 20060528 20060550 20060565 STAR"1' DA'I'E 1212712005 1 I312006 111012006 111712006 112412006 113112006 2/7/2006 211412006 212112006 2/28/2006 31712006 311412006 312112006 312812006 41412006 411 112006 411 812006 412512006 51212006 51912006 END DA'I'E 11312006 1 I1 012006 111 712006 112412006 113112006 2/7/2006 211412006 212 112006 212812006 31712006 3/14/2006 312 112006 312812006 41412006 411 112006 4; 1812006 412512006 51212006 51912006 511 612006 0.07 1-1 3 1 < 0.018 < 0.020 < 0.019 < 0.014 < 0.017 < 0.015 < 0.010 < 0.017 < 0.016 < 0.017 < 0.019 < 0.015 < 0.017 < 0.015 < 0.021 < 0.017 < 0.018 < 0.019 < 0.017 < 0.020 0.01 GROSS HE'I'A 0.032 +I- 0.003 0.028 +I- 0.002 0.020 +I- 0.002 0.028 +I- 0.003 0.021 +I- 0.002 0.018 +I- 0.002 0.023 +I- 0.002 0.022 +I- 0.002 0.024 +I- 0.002 0.031 +I- 0.003 0.027 +I- 0.003 0.025 +I- 0.002 0.015 +I- 0.002 0.021 +I- 0.002 0.025 +I- 0.002 0.022 +I- 0.002 0.022 +I- 0.002 0.024 +I- 0.002 0.023 +I- 0.002 0.017 +I- 0.002 46 LLD (pCi/mA3)
AS-3 LAB ID 20060585 20060595 20060619 20060654 20060685 20060706 20060743 20060772 20060796 20060828 20060855 20060864 20060899 200609 15 20060944 2006095 1 20060977 200610 10 20061033 20061063 20061 116 20061 137 START DATE END DATE 511612006 512312006 513012006 61612006 611312006 612012006
 
612712006 7/4/2006 711 112006 711 812006 7/25/2006 81 1 12006 81712006 811412006 8i2212006
 
8/29/2006 91512006 911 212006 9i1912006
 
912612006 101312006 1 Oil 012006 5 12 3 12 006 513012006 6/6/2006 611312006 612 012 00 6 612712006 7/4/2006 711 112006 711812006 712512006 81112006 8/7/2006 8/14/2006 812212006 812912006 9/5/2006 9/1212006 911912006 9/2 6/2 00 6 1013 12006 1011 Oi2006 1011 712006 0.07 1-131 < 0.017 < 0.018 < 0.016 < 0.020 < 0.018 < 0.016 < 0.022 < 0.026 < 0.017 < 0.019 < 0.014 < 0.020 < 0.016 < 0.017 < 0.016 < 0.015 < 0.017 < 0.027 < 0.019 < 0.018 < 0.019 < 0.015 0.01 GROSS BETA 0.023 +I- 0.002 0.021 +I- 0.002 0.027 +I- 0.003 0.033 +/- 0.003 0.026 +/- 0.002 0.024 +I- 0.002 0.029 +1- 0.003 0.017 +I- 0.002 0.027 +I- 0.003 0.025 +I- 0.003 0.016 +I- 0.002 0.030 +/- 0.003 0.013 +/- 0.002 0.028 +I- 0.002 0.018 +/- 0.002 0.025 +I- 0.002 0.035 +I- 0.003 0.023 +I- 0.002 0.023 +/- 0.002 0.033 +I- 0.003 0.041 +I- 0.003 0.033 +I- 0.003 2 47 LLD (pCilm"3) AS-3 LAB ID 2006 1 177 2006 1206 20061233 20061245 20061263 2006 1299 20061 328 20061346 20061 379 2006141 1 Average: Maximum Minimum: START DATE END DATE 10117i2006 1012412006 1013 1 12006 111712006 11/14/2006 11/21/2006 11/28/2006 12/4/2006 1211212006 1211 912006 1012412006 1013 1/2006 11/7/2006 1111412006 11/21/2006 11/28/2006 12/4/2006 12/12/2006 12/19/2006 12/27/2006 0.07 1-131 < 0.020 < 0.014 < 0.015 < 0.018 < 0.017 < 0.016 < 0.026 < 0.019 < 0.015 < 0.018 0.01 GROSS BETA 0.023 +I- 0.002 0.033 +I- 0.003 0.026 +/ 0.003 0.027 +/- 0.002 0.042 4- 0.003 0.029 +I- 0.003 0.024 +I- 0.003 0,031 +i- 0.0011 0.028 +I- 0.001 1 0.029 +I- 0.0010 0.026 0.042 0.013 48 Table 1.1 Sample 'Type: Air Particulate Filter and Radioiodine Cartridge Analysis:
Gross Beta and 1-13 1 Units: pCi/m' AIR SAMPLE AS GGNS - lndieator ILD (pCiim"3)
AS-7tTH LAB 11) 200600 10 20060028 20060060 20060087 20060123 200601 58 20060200 20060220 20060246 20060271 20060296 200603 18 20060350 20060389 20060438 20060464 20060496 20060529 STAK'I' DATE 12/27/2005 11312006 11 1 012006 ll17l2006 112412006 113112006 21712006 211412006 212112006 212812006 31712006 31 1412006 312112006 312812006 41412006 4'1 112006 41 18!2006 412512006 END DATE 11312006 11 1 Of2006 11 1712006 112412006 113112006 21712006 211412006 212112006 212812006 31712006 311412006 312 112006 312812006 414,'2006 411 112006 4i1812006 4l2512006 51212006 0.07 1-131 < 0.018 < 0.018 < 0.013 < 0.013 < 0.015 < 0.015 < 0.013 4 0.016 < 0.018 < 0.019 < 0.016 < 0.019 < 0.017 < 0.014 < 0.016 .c 0.015 < 0.016 < 0.012 0.01 GROSS BETA 0.031 +I- 0.003 0.028 +/- 0.002 0.023 +I- 0.002 0.027 +I- 0.003 0.020 +I- 0.002 0.019 +i- 0.002 0.022 +/- 0.002 0.022 +I- 0.002 0.025 +I- 0.002 0.034 +I- 0.003 0.027 +1- 0.003 0.026 +I- 0.002 0.018 +I- 0.002 0.022 +I- 0.002 0.028 +I- 0.003 0.023 +I- 0.002 0.024 +i- 0.003 0.025 +I- 0.002 1 49 LLD (pCilm"3)
AS-7UH LAB ID 2006055 1 20060566 20060586 20060596 20060620 20060655 20060686 20060707 20060744 20060773 20060797 20060829 20060856 20060865 20060900 200609 16 20060945 20060952 20060978 2006101 1 2006 1034 20061 064 20061 117 20061 138 START DATE END DATE 51212006 51912006 511612006 512312006 512912006 61612006 61 1312006 612012006 612712006 71412 00 6 7il112006 711 812006 712512006 81112006 81712006 811412006 812212006 812912006 9/5/2006 911212006 51912006 5l1612006 512312006 5/29/2006 61612006 611 312006 612012006 612712006 71412006 711 112006 711 812006 712512006 8/1/2006 8l712006 8/14/2006 8/22/2006 812912006 91512006 911212006 911912006 911912006 912612006 912612006 10l312006 101312006 1011012006 1 Oil 0/2006 1 Oil 712006 0.07 1-131 < 0.012 < 0.018 < 0.015 < 0.019 < 0.018 < 0.017 < 0.015 < 0.015 < 0.026 < 0.021 < 0.016 < 0.016 < 0.014 < 0.017 < 0.019 < 0.013 < 0.017 < 0.017 < 0.018 < 0.024 < 0.019 < 0.018 < 0.017 < 0.013 0.01 GROSS BETA 0.019 +I- 0.002 0.018 +/- 0.002 0.024 +I- 0.002 0.021 +I- 0.003 0.025 +I- 0.002 0.037 +I- 0.003 0.028 +I- 0.003 0.023 +I- 0.002 0.030 +I'- 0.003 0.017 +I- 0.002 0.023 +I- 0.002 0.022 +I- 0.002 0.013 +I- 0.002 0.027 +I- 0.003 0.014 +I- 0.002 0.030 +I- 0.002 0.015 +I- 0.002 0.026 +I- 0.002 0.039 +I- 0.003 0.024 +I- 0.002 0.021 +I- 0.002 0.038 +/- 0.003 0.044 +I- 0.003 0.032 +I- 0.003 50 LLD (pCi/mA3)
LAB ID 20061 178 20061207 20061 234 20061246 20061264 2006 1300 2006 1329 2006 1347 20061380 200614 12 Average: Maximum AS-7UH START DATE END DATE 1011712006 1012412006 10124/2006 10/31/2006 10/31/2006 11/7/2006 11/7/2006 11/14/2006 11/14/2006 11/21/2006 11/21/2006 11/28/2006 11/28/2006 12/4/2006 12/4/2006 12/12/2006 1211 212006 1211 912006 1211 912006 12/27/2006 0.07 1-131 < 0.018 < 0.019 < 0.017 < 0.014 < 0.017 < 0.019 < 0.023 < 0.018 < 0.022 < 0.014 0.01 GROSS BETA 0.021 +I- 0.002 0.035 +/- 0.003 0.024 +l- 0.003 0.029 +/- 0.002 0.039 +/- 0.003 0.032 +/- 0.002 0.023 +I- 0.003 0.033 +/- 0.001 1 0.028 +/-'0.0011 0.027 +/- 0.0010 0.026 0.044 Minimum: 0.0 13 51 Table 1.2 Sample 'Type: Air Particulate Filter Analysis:
Gamma Isotopic Units: pciim' AIR PARTICULATE FILTER QUARTERLY COMPOSITES (GA,MMA) - GGIVS LLD (pCilm"3) LAB ID LOCATION 20060450 2006045 1 20060452 20060730 2006073 1 20060732 20061091 20061092 2006 1093 2006141 8 20061419 20061420 AS-1 PG AS-3 61VA AS-7 UH AS-1 PG AS-3 61VA AS-7 UH AS-1 PG AS-3 61VA AS-7 UH AS-1 PG AS-3 61VA AS-7 UH DATE 211012006
 
211012006 211012006 511 212006 5/12/2006 511212006 811 112006 811 112006 8/11/2006 1111 112006 1111 112006 1111 112006 0.05 CS-134 < 0.005 < 0.004 < 0.003 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.005 < 0.005 < 0.004 < 0.003 0.06 CS-137 < 0.004 < 0.003 < 0.003 < 0.003 < 0.004 < 0.003 < 0.004 < 0.003 < 0.003 < 0.004 < 0.003 < 0.004 52 Table 2.1 Sample 'l'ype: Thermoluminescent Dosimeters Analysis:
Gamma Dose Units: mrem'Qtr Inner Ring - Within General Area of Site Boundary (ODCM Specifications)
Station 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Annual Mean M-16 8.6 10.8 9.5 9.5 9.6 M-17 8.7 10.2 9.8 9.4 9.5 M-19 7.9 10.0 8.7 8.8 8.8 M-21
* 12.6 14.3 13.2 14.0 13.5 M-22 7.4 9.4 8.0 9.2 8.5 M-23 6.9 8.8 7.9 7.7 7.8 hI-25 6.8 9.1 7.9 7.4 7.8 M-2 8 8.9 10.7 10.0 9.7 9.8 M-94 8.1 9.6 9.7 9.2 9.1 Outer Ring - Approximately Three (3) to Five (5) Miles from the Site (ODCM Specifications)
Station 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Annual Mean M-36 7.5 9.5 8.0 8.4 8.4 M-40 6.2 7.2 6.6 6.6 6.7 M-49 ** M-48 8.1 10.4 8.3 9.7 9.1 M-50 8.6 9.9 8.9 8.9 9.1 hI-55 9.4 11.0 9.9 10.1 10.1 11.1 9.3 9.5 9.9 M-5 7
* 9.6 11.4 11.6 10.2 10.7
* Location with highest annual mean.
** TLD Missing 53 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 %I-0 1
* 9.5 11.3 10.0 10.2 10.2 M-07 8.0 10.5 8.6 8.8 9.0 M-09 7.8 9.4 8.6 8.9 8.7 M-10 6.7 8.6 7.3 7.7 7.6 M-33 7.9 8.2 7.6 7.6 7.8 M-3 8 8.3 9.1 8.7 8.2 8.6 M-3 9 7.9 8.9 8.4 8.4 8.4
* Location with highest annual mean.
54 Table 2.3 Sample lypc: Thermoluminescent Dosimeters Analysis:
Gamma Dose Units: inrenv'Qtr Special Interest Areas - Control (ODCNI Specifications)
Station 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Annual Mean M-14 8.9 10.7 9.4 9.7 9.7 Table 2.4 Sample Type: Thermoluminescent Dosimeters Analysis:
Gamma Dose Units: mredQtr Supplemental Areas Station 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Annual Mean s-2 9.3 7.4 7.1 7.5 7.8 s-3 8.7 7.4 7.0 6.9 7.5 s-4 5.5 6.7 6.8 6.1 6.3 s-5 10.3 12.2 11.2 11.1 11.2 S-6
* 12.5 14.2 13.9 13.4 13.5 s-7 9.1 11.3 10.8 10.1 10.3
* Location with highest annual mean.
55 Table 3.1 Sample Type: Siirfacc Water Analysis:
Gamma Isotopic Units: pCi/l SURFACE \VATER SAMPLES (GAMMA) - GGNS LLD (pCi/l) LAB ID LOCATION 20060034 MR DOWN 20060035 MRUP 20060432 MR DOWN 20060434 MRUP 20060767 MR DOWN 20060779 MRUP 2006 1 124 MRDOWN 20061125 MRUP 20061 126 MRDOWN* 15 DATE MN-54 1/10/2006 <10.50 1/10/2006
< 9.62 4/11/2006
< 5.38 4/11/2006
< 11.52 711 1/2006 < 8.25 7/11/2006
< 8.88 10/11/2006
< 5.89 10!11/2006
< 8.41 10/11/2006
< 8.71 20061 127 MRDOW GG* 10/11/2006
< 1 1.59 "GG" - indicates duplicate sample.
15 CO-58 < 10.54 < 8.30 < 9.38 < 13.38 < 9.80 < 9.51 < 4.96 < 9.81 < 9.34 < 11.00
* Annual Sample collected during liquid discharge 30 FE-59 < 15.87 < 22.10 < 18.49 < 24.72 < 23.31 < 9.18 < 12.88 < 16.04 < 15.95 < 24.13 15 CO-60 < 8.19 < 5.23 < 9.35 < 13.09 < 7.66 < 9.47 < 7.52 < 6.29 < 8.19 < 9.63 30 ZN-65 < 18.82 < 15.03 < 16.99 < 22.44 < 21.37 < 21.91 < 29.79 < 19.53 < 18.00 < 15.52 15 XB-95 < 8.42 < 10.64 < 9.74 < 10.65 < 10.80 < 10.73 < 9.65 < 935 < 6.96 < 10.79 30 ZR-95 < 21.93 < 15.67 < 19.59 < 19.22 < 12.94 < 13.74 < 15.32 < 9.46 < 15.50 < 13.12 15 15 1-131 CS-134
< 13.03 < 12.84 < 10.57 < 8.68 < 14.39 4 9.91 < 12.00 < 11.42 < 11.11 < 10.66 < 13.97 < 9.69 < 10.28 < 10.19 < 10.10 < 8.00 < 12.09 < 5.85 < 11.36 < 11.11 18 CS-137 < 7.51 c 7.32 < 9.03 < 13.40 < 9.20 < 7.02 < 7.46 < 7.55 < 9.03 < 11.33 60 BA-140 < 47.97 < 30.85 < 38.67 < 28.69 < 31.30 < 36.71 < 36.29 < 36.46 < 25.80 < 47.34 15 LA-140 < 14.26 < 10.27 < 10.56 < 14.99 4 14.29 < 13.09 < 12.96 < 14.86 < 1396 < 14.76 56 Table 3.2 Sample Type: Surface Water Analysis:
Tritium C'nits: yCiil SURFACE WATER SAMPLES (TRITIUM) - GGNS LLD ( pCi/l) LAB ID 20060034 20060035 20060036 20060037 20060038 200601 65 20060273 20060402 20060433 20060435 20060553 20060617 2006074 1 20060768 20060770 20060862 20060954 20061 105 2006 1 124 20061 125 20061 126" 20061229 2006 1242 2006 133 1 SURFACE WATER H-3 3000 LOCATION MR DOWN MRUP MRDOWN GG MRUP GG OUTFALL 007 OUTFALL 007 OUTFALL 007 OUTFALL 007 MR DOWN mUP OUTFALL 007 OUTFALL 007 OUTFALL 007 MR DOWN MRUP OUTFALL 007 OUTFALL 007 OUTFALL 007 MRDOWN MRUP MRDOWN OUTFALL 007 OUTFALL 007 OUTFALL 007 DATE 111 012006 1/10/2006 111 012006 111 012006 111012006 2/7/2006 3/7/2006 4/4/2006 411 112006 411 112006 5/8/2006 61612 00 6 7/4/2006 711 112006 711 112006 8/7/2006 9/6/2006 10/6/2006 1011 112006 1011 112006 1011 112006 11/3/2006 11/14/2006 12/4/2006 TRITIUM < 576 < 572 < 569 < 574 < 580 1,220 +I- 273 < 566 845 +I-262 < 584 < 581 < 588 < 577 < 581 < 589 < 589 598 +I-259 373 +/-254 354 +l-250 < 567 < 565 < 572 < 566 < 562 < 633
* Annual Saniple collected during liquid discharge "GG" - indicates duplicate saniple. 57 
'fable 4.1 Sample Type: Groundwater Analysis: Gamma Isotopic TJnits: pCi/l GROUND WATER SAMPLES (GAMMA) - GGIVS LLD (pcill) 15 15 30 15 30 15 30 15 18 60 15 LAB ID LOCATION DATE MN-54 CO-58 FE-59 CO-60 ZN-65 NB-95 ZR-95 CS-134 CS-137 BA-I40 LA-140 20061209 PGWELL 10130106 < 13.38 < 9.82 < 15.47 < 11.74 < 24.15
< 12.38 < 13.52
< 11.63 < 8.31 < 42.88 < 14.52 < 7.49 < 11.88 <44.76 < 13.30 20061210 CONSTWELL 10/30106 < 9.25 < 9.68 < 16.25 < 9.96
< 17.48 < 11.12 < 18.33 20061211 PGWELL GG 10130106 < 9.93 < 8.51 < 14.51 < 8.07 < 17.22 < 11.48 < 14.35 < 10.24 < 8.67 c 34.42 < 14.32 20061212 CONSTWELL GG 10130106 < 8.95 < 6.73 < 18.39 c 7.57 < 22.52 < 9.24 < 15.39 < 9.73 < 7.73 < 38.75 <
11.61 "GG" - indicates duplicate sample.
58 Table 4.2 Sample Type: Groundwater Analysis:
Tritium Units: pCiil GROUND WATER SAMPLES ( TRITTUM) - GGNS LLD (pCi/l)
LAB ID LOCATION DATE 20061209 PGWELL 1013012006 2006 12 10 CONSTWELL 1 013 012006 2000 TRITIUM < 562.12 < 563.39 59 Table 4.3 Sample T-ype: Groundwater Analysis:
Iodine Units: pCiil GROUND WATER SAMPLES (Iodine-131) - GGNS LLD(pCi/l)
L.4B ID LOCATIOS 2003 1209 PGWELL 20061210 CONSTWELL DATE 10/30/2006 10/30/2006 1 .o 1-131 < 0.90 < 0.88 60 Table 5.1 Sample Type: Sediment Analysis:
Gamma isotopic Units: pCi;kg SEDIMENT SAMPLES (GAMMA) - GGNS LLD (pCi/KG) 150 LAB ID LOCATION DATE CS-134 20061 128 SEDHAM 10/11/2006
< 23.94 20061 129 SEDCONT 10/11/2006
< 17.53 20061 130 SEDHAM GG lO/l1/2006
< 27.42 20061 131 SEDCONT GG 10/11/2006
< 22.68 180 CS-137 50.64 +I- 12.76 < 18.92 35.99 +I- 15.17 < 20.94 "GCJ" - indicates duplicate sample.
61 
'l'ablc 6.1 Sample Type:
Fistl Analysis:
Gamma Tsotopic LJnlts: pCi1kg FISH SAMPLES (GAMMA) - GGNS LLD (pCi/kg) 130 130 260 130 260 130 150 LAB ID LOCATION DATE MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 200608 14 FISHUP 712012006
< 9.89 < 15.43 < 28.79 < 13.28 < 26.68 < 9.53 < 15.23 200608 15 FISHDOWN 712012006
< 11.38 < 11.42 < 37.68 < 15.82 < 27.24 < 11.93 < 11.90 200608 16 FISHUP GG 712012006
< 15.75 < 13.05 < 40.23 < 22.19 < 38.66 < 12.36 < 14.79 20060817 FISHDOWN GG 71201'2006
< 14.87 < 14.03 < 35.64 < 16.44 < 42.55 < 9.84 < 14.68 "CX" - indicates duplicate sample.
62 Table 7.1 Sample Type: Food Products Analysis:
Iodine-13 1 and Gamma Tsotopjc IJnits: yC11kg VEGETATION SAMPLES (GAMMA) - GGNS LLD (pCi/kg)
LAB ID 2006005 1 20060052 20060054 20060055 2006053 1 20060532 200608 10 200608 1 1 2006121 3 20061214 LOCATION VEG-CONT VEG-J VEG-J GG VEG-CONT GG VEG-CONT VEG-J VEG-CONT VEG-J VEG-CONT VEG-J DATE 111 0/2006 111 012006 111 012006 111 012006 412 1 I2006 412112006 711 912006 71 1912006 1013012006 lOl3012006 60 1-131 < 31.50 < 59.48 < 59.20 < 26.31 < 41.67 < 50.48 < 46.41 < 58.29 < 59.78 < 55.32 60 CS-134 < 27.36 < 35.38 < 28.16 < 26.55 < 25.61 < 29.51 < 37.13 < 22.42 < 43.48 < 27.59 80 CS-137 < 24.88 < 40.17 < 44.21 < 26.54 < 19.27 < 27.74 < 39.88 < 44.55 < 45.72 < 35.53 "GG" - indicates duplicate saiiiplc.
63 Table 8. I Sample Type: Special Samples Analysis:
Gamma Isotopic IJnits: pCi/kg SPECIAL VENISON SAMPLES (GAMMA) - GGNS LLD (pCi/kg) 130 130 260 130 260 LAB ID LOCATION DATE MN-54 CO-58 FE-59 CO-60 ZN-65 20061230 VENlSON 111312006
< 23.49 < 30.83 < 72.85 < 23.32 < 56.11 130 CS-134 < 20.34 150 CS-137 < 19.41 SPECIAL VEGETATION SAMPLES (GAMMA) - GGNS LLD (pCi/kg) 60 LAB ID LOCATION DATE 1-131 20060842 HAY 712712006
< 14.92 60 CS-134 < 10.40 80 CS-137 < 11.99 SPECIAL SURFACE U'ATER SAMPLES (GAMMA) - GGNS LLD @Ci/l) 15 15 30 15 30 15 30 15 15 LABID LOCATION DATE MN-54 CO-58 FE-59 CO-60 ZN-65 VB-95 ZR-95 1-131 CS-134 18 CS-137 60 RA-140 15 LA-140 20060038 OUTFALL007 1/10/2006
< 7.81 < 9.18 < 11.99 < 5.07 < 21.44 < 10.11 < 19.42 < 14.64 < 11.05 < 12.87 < 40.92 < 14.90 20060398 OUTFALL007 41412006 < 7.75 < 10.80 < 17.86 < 10.60 < 18.72 c: 10.34 < 10.76 < 11.21 < 11.53 < 10.70 < 36.54 < 14.62 20060737 OUTFALL007 7/4/2006
< 8.12 < 8.58 < 22.39 < 13.22 < 23.32 < 8.24 < 19.39 < 12.14 < 5.18 < 9.74 < 39.86 < 9.20 20061106 OUTFALL007 10/6/2006
< 8.09 < 7.55 < 17.00 < 8.16 < 21.65 4 8.46 < 17.03 < 11.97 < 8.94 < 9.52 < 45.30 < 12.64 20061243 OUIFALL007 11/14/2006
< 9 14 < 1023 < 1349 < 495 < 21 60 < 862 < 1599 < 897 < 968 < 12.49 < 30.93 < 10.54 64 Table 9. I Sample Type: In terlaboratorv Comparison Analysis: Gross Beta, Tritium, Iodine-1 3 1 and Gamma Isotopic Sample Type l-iT Cartridge Water (pcilliter)
Sample # E5008-125 E5007-125 E5006-125 E5083-125 E5081-125 E5237-125 E5082-125 65 Sample # E5009-125 Date Analysis Known RBS Value RBS N-DEV Val ue(a) (b) I Sample Type (units) Milk (pcilliter)
RBS N- RANGE(c) NOTES: (a) The known value as determined by cross check sample supplier. (b) The normalized deviation from the "known" value is computed from the deviation and the standard error of the mean:
f2.00 is the 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 were outside control limits.
There was one result outside the control limits for accuracy in the 2006 Interlaboratory Comparison program studies. Sample E5007-125 gross beta in water was 0.006% outside the Lower Control Limit.
In October 2006, a new gross beta in water sample was prepared using the same source material. The results were within the acceptance criteria.
The same sample was analyzed on a different alphabeta counter. The results on the new instrument were within the control limits.
Review of trending information of gross beta in water results shows a fluctuation of high and low values. In 2000 there was another occurrence of gross beta in water below the control limit of 3.0. The supplier for the interlaboratory crosscheck samples was contacted to determine if a low bias was present in gross beta in water by other participants.
A low bias response was not present.
The most probable cause of the low sample result was sample preparation error. The low result could also have been due to machine age or an intermittent issue, but other samples counted on the same machine were within the control level. The new sample that was counted lends the most logical conclusion that a preparation error could have occurred during mixing, transfer or evaporation of the sample media. There is no impact accessed on previously reported data due to these results. Environmental samples are analyzed and reported with a ninety-five percent confidence level.
A known standard is counted with each group of samples and must read within 10 percent of the decay corrected activity.
98% of interlaboratory crosscheck results were within control limits for accuracy and 100% were within control limits for precision.
66}}

Latest revision as of 02:28, 13 July 2019

Redirect to:

Retrieved from "https://kanterella.com/w/index.php?title=ML071200209&oldid=1826904"