RBG-46688, Radiological Environmental Operating Report for 2006
| ML071220110 | |
| Person / Time | |
|---|---|
| Site: | River Bend  |
| Issue date: | 04/26/2007 |
| From: | Lorfing D N Entergy Operations |
| To: | Document Control Desk, NRC/NRR/ADRO |
| References | |
| RBF1-07-0069, RBG-46688 | |
| Download: ML071220110 (46) | |
Text
April 26, 2007 US. Nuclear Regulatory Commission Document Control Desk I 1555 Rockville Pike Rockville, MD 20852-2738
Subject:
Radiological Environmental Operating Report for 2006 River Bend Station - Unit I License No. NPF-47 Docket No. 50-458 File Nos.: G9.5, G9.25.1.5 RBG-46688 RBFl-07-0069 Enclosed is a CD contain~ng the River Bend Station (FIBS) Annuai Radiological Environmental Operating Report for the period January I, 2006, through December 31, 2006. This report is submitted in accordance with the RBS Technical Specifications, Section 5.6.2. Also enclosed as the first page of the report is a copy of this transmittal letter. Should you have any questions regarding the enclosed information, please contact Mr.
Bill Fountain at (225) 381-4625.
Si n ce re I y , D N L/wjf enclosure RIVER BEND STATION ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 2006 Compiled By: Williah H. Spell Sr. Environmental Specialist c 7- Michael W. Davis Manager Radiation Protection Superintendent Chemistry (acting)
Approved By: General Manager Plant Operations i TABLE OF CONTENTS
SUMMARY
1
1.0 INTRODUCTION
5 1.1 Radiological Environmental Monitoring Program 5 1.2 Pathways Monitored 5 1.3 Land Use Census 5
2.0 INTERPRETATION
AND TRENDS OF RESULTS 16 2.1 Air Particulate and Radioiodine Sample Results 16 2.2 Thermoluminescent Dosimetry Sample Results 16
2.3 Water
Sample Results 17
2.4 Sediment
Sample Results 17 2.5 Milk Sample Results 18 2.6 Fish and Invertebrate Sample Results 18 2.7 Food Products Sample Results 18 2.8 Land Use Census Results 18
2.9 Interlaboratory
Comparison Results 19
3.0 RADIOLOGICAL
ENVIRONMEN TAL MONITORING PROGRAM
SUMMARY
22 3.1 2006 Program Results Summary 22
ii LIST OF TABLES TABLE 1.1 RADIOLOGICAL ENVIRONMENTAL SAMPLING PROGRAM 7
TABLE 2.1 LAND USE CENSUS RESULTS 20
TABLE 3.1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
23 iii LIST OF FIGURES
FIGURE 1-1 EXPOSURE PATHWAYS 13
FIGURE 1-2 SAMPLE COLLECTION SITES - NEAR FIELD 14
FIGURE 1-3 SAMPLE COLLECTION SITES - FAR FIELD 15
FIGURE 2-1 TLD INDICATOR RESULTS VERSUS CONTROL DATA 21
FIGURE 2-2 GROSS BETA INDICATOR RESULTS VERSUS CONTROL DATA 21
iv LIST OF ATTACHMENTS ATTACHMENT 1 2006 RADIOLOGICAL MONITORING REPORT
SUMMARY
OF MONITORING RESULTS 28
1 Summary The Annual Radiological Environmental Operating Report presents data obtained through analyses of environmental samples collected for the River Bend Station (RBS) Radiological Environmental Monitoring Program (REMP) for the period January 1, 2006 through December 31, 2006. This report fulfills a requirement specified in RBS Technical Requirements Manual (TRM) 5.6.2 as required by Technical Specification 5.6.2 of Appendix A to RBS License Number NPF-47. During 2006, REMP results remained at background levels, as has been the case in previous years.
All required lower limit of detection (LLD) capabilities were achieved in all sample analyses during 2006. No measurable levels of radiation above baseline levels were detected in the vicinity of River Bend Station. The 2006 Radiological Environmental Monitoring Program thus substantiated the adequacy of source control and effluent monitoring at River Bend St ation with no observed impact of plant operations on the environment.
Radiological Environmental Monitoring Program RBS established the REMP prior to the station's becoming operational (1985) to provide data on background radiation and radioactivity normally present in the area. RBS has continued to monitor the environment by sampling air, water, sediment, fish and food products, as well as measuring direct radiation. RBS also samples milk if milk-producing animals used for human consumption are present within five miles (8 km) of the plant.
The REMP includes sampling indicator and control locations within an approximately 20-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. RBS personnel compare indi cator results with control and preoperational results to assess any impact RBS operation might have had on the surrounding environment.
In 2006, environmental samples were collected for radiological analysis. The results of indicator locations were compared with control locations and previous studies. It was concluded that overall, no significant relationship exists between RBS operation and effect on the area around the plant. The review of 2006 data, in many cases, showed radioactivity levels in the environment were undetectable in many locations and near background levels in significant pathways.
Harmful Effects or Irreversible Damage The REMP monitoring did not detect any harmful effects or evidence of irreversible damage in 2006. Therefore, no analysis or planned course of action to alleviate problems was necessary.
2 Reporting Levels RBS's review indicates that no samples equaled or exceeded reporting levels for radioactivity concentration in environmental samples, as outlined in RBS Technical Requirements Manual Table 3.12.1-2, when averaged over any calendar quarter. Therefore, 2006 results did not result in any Radiological Monitoring Program Special Reports.
Radioactivity Not Attributable to RBS Periodically Mississippi River sediment samples show Cs-137 activity as was the case in 2006. A non-REMP upstream control sample also showed a similar level of activity. A review of historical indicator and upstream sediment samples also periodically showed Cs-137 and these values are in line with the 2006 values. The results of the upstream and downstream positive values indicates that this radioactivity in the sediment is most probable from weapons testing or other fallout events such as Chernobyl and not attributable to RBS. Following the radioactive plume release due to reactor core degradation at the Chernobyl Nuclear Power Plant in 1986, RBS REMP detected I-131 in water, vegetation, and air samples. I-131 was also detected during 1998 in the wastewater treatment plant effluent. This was attributed to the medical treatment of a RBS employee.
Comparison to Federal and State Programs RBS 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 (Thermoluminescent Dosimeter)
Direct Radiation Monitoring Network and the Environmental Radiological Laboratory -
Department of Environmental Quality Laboratory Services Division (ERL-DEQLSD).
The NRC TLD Network Program was discontinued in 1998. Historically these results have compared to those from the RBS REMP. RBS TLD results continue to remain similar to the historical average and continue to verify that plant operation is not affecting the ambient radiation levels in the environment.
The ERL-DEQLSD and the RBS REMP enta il similar radiological environmental monitoring program requirements. These programs include co-located air sample locations, and splitting or sharing sample media such as water, fish and food products.
Both programs have obtained similar results over previous years.
Sample Deviations Milk 3 The REMP did not include milk sampling within five miles (8 km) of RBS in 2006 due to unavailability of milk-producing animals used for human consumption. The RBS Technical Requirements Manual requires collection of milk samples if available commercially within 8 km (5 miles) of the plant. RBS personnel collected vegetation samples to monitor the ingestion pathway, as specified in RBS Technical Requirements Manual Table 3.12.1-1, because of milk unavailability.
Required Lower Limit of Detection (LLD) Values All LLDs during this reporting period were mo re conservative than the acceptable limits required by the RBS Techni cal Requirement Manual (TRM).
Sampling Deviations Listed below are sampling deviations that occurred during 2006. No LLD values were exceeded in the air sampling deviations. As described in footnote (a) to RBS Technical Requirements Manual Table 3.12.1-1, deviations are permitted from the required sampling schedule due to malfunction of equipment or other legitimate reasons.
Station Sampling Period Problem Description Comment AP1, AN1 2/28/06 to 3/13/06 Power outage Air sampler locations AP1 and AN1 were short 3.3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> (1 % volume)
and 3.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> (1.1% volume) for period 02/28/06 to 03/13/06 due to the construction loop power outage at Grant Substation.. Sampler operating normal at time of sample collection AN1 6/05/06 to 6/19/06 Power outages Air sampler locations AP1 (Met Tower) and AN1 (Hwy. 965) were short 4.1 hours1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> each (1.2 % volume) for period 06/05/06 to 06/19/06 due to power outage caused by downed power pole. Samplers operating
normal at time of sample collection.
AP1, AN1, AQS2 7/17/06 to 7/31/06 Air sampler location AQS2, St.
Francisville sub-station, had a 5.9
hour (1.7% volume) outage due to
local power outage caused by
inclement weather during sampling
period 7/17/06 to 7/31/06. Sampler
operating normal at time of sample collection.
TNS 2 nd Quarter 2006 TLD Badge Missing Badge missing and holder still in place; due to mischievous activity at
high traffic area TC1 4 th Quarter 2006 TLD Badge Missing Badge and holder missing due to recent power line/highway right-of-4 way clearing activity Missed Samples One special interest TLD, TNS was found missing in second quarter 2006 and one Indicator TLD, TC1 was found missing in fourth quarter 2006.
Unavailable Results No sample results during 2006 were unavailable.
Program Modifications RBS made no modifications to the REMP during the year 2006.
Attachments Attachment 1 contains results of air, TLD, water, sediment, fish, food products and special samples collected in 2006. TLDs were analyzed by Waterford-3 Dosimetry. All remaining samples were analyzed by RBS Environmental Laboratory. also contains RBS' participation in the Interl aboratory Comparison Program during the year 2006.
5 1.0 Introduction
1.1 Radiological
Environmen tal Monitoring Program RBS 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:
Analyzing important pathways for anticipated types and quantities of radionuclides released into the environment.
Considering the possibility of a buildup of long-lived radionuclides in the environment and identifying physical and biological accumulations that may contribute to human exposures.
Considering the potential radiation exposure to plant and animal life in the environment surrounding RBS.
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 the RBS Technical Requirements Manual 3.12.1. A description of the RBS REMP sample locations utilized to monitor exposure pathways are described in Table 1.1 and shown in Figures 1-2 and 1-3. RBS may occasionally supplement this program with additional sampling in order to provide a comp rehensive and well-balanced program.
Section 2.0 of this report provides a discussion of 2006 sampling results with Section 3.0 providing a summary of resu lts for the monitored exposure pathways.
1.3 Land Use Census RBS personnel conduct a land use census biannually, as required by RBS Technical Requirements Manual 3.12.2. The last land use census was performed in 2006. The purpose of this census is to identify changes in uses of land within five miles of RBS that would require modifications to the REMP or the Technical Requirements Manual. The most important criteria during this census is to determine the location in each sector of the nearest:
- 1) Residence
- 2) Animal milked for human consumption 3) Garden of greater than 50 m 2 (500 ft 2) producing broadleaf vegetation. RBS personnel do not perform a garden census since Technical Requirements 6 Manual 3.12.2 allows the routine sampling of broadleaf vegetation in the highest D/Q sector near the site boundary in lieu of the garden census
The land use census is conducted using one or more of the following methods:
RBS personnel conduct door-to-door field surveys, and/or aerial surveys in each meteorological sector out to five miles in order to locate the nearest resident and milk animal.
Consultation with County Agents from each parish area is used especially in verifying the presence of milk animals in the five mile radius of River Bend.
As a result of these surveys, the following information is obtained in each meteorological sector:
- 1) Nearest permanent residence
- 2) Nearest milking animal
- 3) Beef animal
- 4) Crustaceans RBS personnel identify locations on the map, measure distances to RBS and record results. Distance and direction from RBS reactor building is also determined by use of a GPS instrument.
Locations, if any, are identified which yield a calculated dose or dose commitments greater than those currently calculated in the Technical Requirements Manual.
RBS personnel compare results to previous census.
7 Table 1.1 Radiological Environmental Sampling Program Exposure Pathway Requirement Sample Point Description, Distance and Direction Sampling and Collection Frequency Type and Frequency Of Analyses Airborne Radioiodine and Particulates 2 samples from close to the 2 SITE BOUNDARY locations, in different sectors, of the highest calculated annual average ground level D/Q.
AN1 (0.9 km W) - RBS site Hwy 965; 0.4 km south of Activity Center.
AP1 (0.9 km WNW) - Behind River Bend Station Activity Center.
Continuous sampler operation with sample collection every two weeks, or more frequently if required by dust loading.
Radioiodine Canisters - I-131 analysis every two weeks.
Air Particulate - Gross beta radioactivity analysis following
filter change.
Radioiodine and Particulates 1 sample from the vicinity of a community having the highest calculated annual average ground level
D/Q.
AQS2 (5.8 km NW) - St. Francis Substation on US Hwy. (Bus.) 61 in St.
Francisville.
Radioiodine and Particulates 1 sample from a control location, as for example 15 - 30 km distance and in the least prevalent wind direction.
AGC (17.0 km SE) - Entergy Service Center compound in Zachary. (Control)
Direct Radiation TLDs One ring of stations, one in each meteorological sector in the general area of the SITE BOUNDARY.
TA1 (1.7 km N) - River Bend Training Center. TB1 (0.5 km NNE) - Utility pole near River Bend Station cooling tower yard area.
TC1 (1.7 km NE) - Telephone pole at Jct. US Hwy. 61 and Old Highway 61.
Quarterly mR exposure quarterly.
8 Table 1.1 Radiological Environmental Sampling Program Exposure Pathway Requirement Sample Point Description, Distance and Direction Sampling and Collection Frequency Type and Frequency Of Analyses Direct Radiation TLDs One ring of stations, one in each meteorological sector in the general area of the SITE BOUNDARY.
TD1 (1.6 km ENE) - Stub pole along WF7, 150m S of Jct. WF7 and US Hwy. 61.
TE1 (1.3 km E) - Stub pole along WF7, 1 km S of Jct. WF7 and US Hwy. 61.
TF1 (1.3 km ESE) - Stub pole along WF7, 1.6 km S of Jct. WF7 and US Hwy. 61.
TG1 (1.6 km SE) - Stub pole along WF7, 2 km S of Jct. WF7 and US Hwy. 61.
TH1 (1.7 km SSE) - Stub pole at power line crossing of WF7 (near Grants Bayou).
TJ1 (1.5 km S) - Stub pole near River Bend Station Gate #23 on Powell Station Road (LA Hwy. 965).
TK1 (0.9 km SSW) - Utility pole on Powell Station Road (LA Hwy. 965), 20 m S of River Bend Station River Access Road.
TL1 (1.0 km SW) - First utility pole on Powell Station Road (LA Hwy. 965) S of former Illinois Central Gulf RR crossing.
Quarterly mR exposure quarterly.
9 Table 1.1 Radiological Environmental Sampling Program Exposure Pathway Requirement Sample Point Description, Distance and Direction Sampling and Collection Frequency Type and Frequency Of Analyses Direct Radiation TLDs One ring of stations, one in each meteorological sector in the general area of the SITE BOUNDARY.
TM1 (0.9 km WSW) - Third utility pole on Powell Station Road (LA Hwy. 965) N of former Illinois Central Gulf RR crossing.
TN1 (0.9 km W) - Utility pole along Powell Station Road (LA Hwy. 965), near garden and AN1 air sampler location.
TP1 (0.9 km WNW) - Behind River Bend Station Activity Center at AP1 air sampler location.
TQ1 (0.6 km NW)
- Across from MA-1 on RBS North Access Road.
TR1 (0.8 km NNW) - River Bend Station North Access Road across from Main Plant entrance.
Quarterly mR exposure quarterly.
TLDs The balance of the stations (8) to be placed in special interest areas such as population centers, nearby residences, schools, and in 1 or 2
areas to serve as control locations.
TAC (15.8 km N) - Utility pole at Jct. of US Hwy. 61 and LA Hwy. 421, 7.9 km north of Bains. (Control)
TCS (12.3 km NE) - Utility pole at gate to East Louisiana State Hospital in Jackson. (Special)
TEC (16.0 km E) - Stub pole at jct. of Hwy. 955 and Greenbrier Road, 4.8 km North of Jct. of Hwys 955 and 964. (Control)
10 Table 1.1 Radiological Environmental Sampling Program Exposure Pathway Requirement Sample Point Description, Distance and Direction Sampling and Collection Frequency Type and Frequency Of Analyses Direct Radiation TLDs The balance of the stations (8) to be placed in special interest areas such as population centers, nearby residences, schools, and in 1 or 2
areas to serve as control locations.
TGS (17.0 km SE) - Entergy Service Center compound in Zachary. (Special)
TNS (6.0 km W) - Utility pole with electrical meter at west bank ferry landing (LA Hwy. 10). (Special)
TQS1 (4.0 km NW) - Utility pole front of Pentecostal church (opposite West Feliciana Parish Hospital) near Jct. US Hwy. 61 and
Commerce Street. (Special)
TQS2 (5.8 km NW) - St. Francis Substation on business US Hwy. 61 in St. Francisville. (Special)
TRS (9.2 km NNW) - Stub pole at Jct. of US Hwy. 61 and WF2 near Bains (West Feliciana High School). (Special)
Quarterly mR exposure quarterly. Waterborne Surface Water 1 sample upstream and 1 sample downstream.
SWU (5.0 km W) - Mississippi River about 4 km upstream from the plant liquid discharge outfall, near LA Hwy. 10 ferry crossing.
SWD (7.75 km S) - Mississippi River about 4 km downstream from plant liquid discharge outfall, near paper mill.
Grab samples quarterly Gamma isotopic analysis ,and tritium analysis quarterly.
11 Table 1.1 Radiological Environmental Sampling Program Exposure Pathway Requirement Sample Point Description, Distance and Direction Sampling and Collection Frequency Type and Frequency Of Analyses Waterborne Groundwater Samples from 1 or 2 sources only if likely to be affected.
WU ( 470 m NNE) - Upland Terrace Aquifer well upgradient from plant.
WD (470 m SW) - Upland Terrace Aquifer well downgradient from plant.
Semiannually Gamma isotopic and tritium analysis semiannually.
Sediment From Shoreline 1 sample from downstream area with existing or potential recreational value.
SEDD (7.75 km S) - Mississippi River about 4 km downstream from plant liquid discharge outfall, near paper mill.
Annually Gamma isotopic analysis annually.
Ingestion Milk If commercially available, 1 sample from milking animals within 8 km distant where doses are calculated to be greater than 1 mrem per year.
1 sample from milking animals at a control location 15 - 30 km distant when an indicator location exists.
Currently, no available milking animals within
8 km of RBS.
Quarterly when animals are
on pasture.
Gamma isotopic and I-131 analysis quarterly when animals
are on pasture.
Fish and Invertebrates 1 sample of a commercially and/or recreationally important species in vicinity of plant discharge area.
1 sample of similar species in area not influenced by plant discharge.
FD (7.75 km S) - One sample of a commercially and/or recreationally important species from downstream area influenced by
plant discharge.
FU (4.0 km WSW) - One sample of a commercially and/or recreationally important species from upstream area not influenced by
plant discharge.
Annually Gamma isotopic analysis on edible portions annually
12 Table 1.1 Radiological Environmental Sampling Program Exposure Pathway Requirement Sample Point Description, Distance and Direction Sampling and Collection Frequency Type and Frequency Of Analyses Ingestion Food Products 1 sample of one type of broadleaf vegetation grown near the SITE BOUNDARY location of highest predicted annual average ground level
D/Q if milk sampling is not performed.
1 sample of similar broadleaf vegetation grown 15 - 30 km distant, if
milk sampling is not performed.
GN1 (0.9 km W) - Sampling will be performed in accordance with Table 3.12.1-1 Section 4.a of the Te chnical Requirements Manual.
GQC (32.0 km NW) - One sample of similar vegetables from LA State Penitentiary at Angola. (Control)
Quarterly during the growing
season. Gamma isotopic and I-131 analysis quarterly.
FIGURE 1-1 EXPOSURE PATHWAYS 13 FIGURE 1-2 SAMPLE COLLECTION SITES - NEAR FIELD 14 FIGURE 1-3 SAMPLE COLLECTION SITES-FAR FIELD 15 16 2.0 Interpretation and Trends of Results 2.1 Air Particulate and Ra dioiodine Sample Results Iodine-131 was not detected in the radioiodine cartridges during 2006, as has been the case in previous years. Indicator gross beta air particulate results for 2006 were similar to preoperational and operational levels as seen below. Results are reported as annual average pCi/m 3 (picocuries per cubic meter).
Monitoring Period Result Preoperational 0.030 2006 0.024 2005 0.022 2004 0.018 2003 0.021 2002 0.020 Table 3.1 provides a comparison of the indicator and control location mean values, which further emphasizes that the airborne pathway continues to remain at background levels. Figure 2-2 also shows a comparison of indicator results from 2006 versus control location data from 1986 to 2005. Seven indicator results for 2006 were out of the upper three-sigma limit. The highest peaks were counted and showed only natural activity. Background and efficiency did not show any negative or positive trends. Dry weather was note during the sample period.
2.2 Thermoluminescent
Dosimetry Sample Results Gamma radiation exposure in the reporting period compares to previous years and remains below preoperational levels. Figure 2-1 compares quarterly indicator results for 2006 with control location data from 1986 to 2005. All indicator results are within the upper control three-sigma lim it of the control data.
RBS normalizes measured exposure to 90 days and relies on comparison of the indicator locations to the control as a measure of plant impact. RBS's comparison of the inner ring and special interest area TLD results to the controls, as seen in Table 3.1, indicates that the ambient radiation levels are unaffected by plant operations. Therefore, levels continue to remain at or near background.
One special interest TLD, TNS was found missing in second quarter 2006 and one Indicator TLD, TC1 was found missing in fourth quarter 2006.
17 2.3 Water Sample Results Analytical results for 2006 surface water and groundwater samples were similar to those reported in previous years.
Surface water samples were collected from two locations (indicator and control) and analyzed for gamma radionuclides and tritium. Gamma radionuclides were below detectable limits at the indicator and control locations. Tritium was also below detectable limits at all locations. Listed below is a comparison of 2006 results from the indicator location as compared to the preoperational and previous operational years. Results are reported as annual average pCi/
l (picocuries per liter).
Radionuclide 2006 2001 - 2005 Preoperational Gammas <LLD <LLD <LLD Tritium <LLD <LLD <LLD Groundwater samples were collected from two locations (indicator and control) and analyzed for gamma radionuclides and tritium. Gamma radionuclides and Tritium were below detectable limits at the indicator and control locations. Listed below is a comparison of 2006 results from the indicator location as compared to the preoperational and previous operational years. Result s are reported as annual average pCi/l.
Radionuclide 2006 2001 - 2005 Preoperational Gammas <LLD <LLD <LLD Tritium <LLD <LLD <LLD Based on these comparisons, the operation of RBS had no impact on this pathway during 2006, and levels of radionuclides monitored for this pathway continue to remain similar to those obtained in operational and preoperational years.
2.4 Shoreline
Sediment Sample Results A shoreline sediment sample was collected from the indicator location in 2006 and analyzed for gamma radionuclides. In this sample CS-137 was detected. RBS also samples a non-REMP upstream control sediment sample. This sample also had Cs-137. The following day a confirmatory upstream and indicator sample was obtained with each again showing CS-137. A review of historical indicator and upstream sediment samples also periodically showed Cs-137 and the values are in line with the 2006 values. The results of the upstream and downstream positive values indicates that this radioactivity in the sediment is most probable from weapons testing or other fallout events and not attributable to RBS. Therefore, based on these measurements, RBS operations had no significant radiological impact upon the env ironment or public via this pathway.
18 2.5 Milk Sample Results Milk samples were not collected during 2006 due to the unavailability of indicator locations within 5 miles (8 km) of RBS. Since there are no dairies within five miles of the RBS site, it is concluded RBS's operation had no impact on this pathway in 2006.
2.6 Fish and Invertebrate Sample Results Fish samples were collected from two locations (indicator and control) and analyzed for gamma radionuclides. In 2006, gamma radionuclides were below detectable limits, which is consistent with the preoper ational and operational monitori ng periods. Therefore, based on these measurements, RBS operations had no significant radiological impact upon the environment or public by this pathway.
2.7 Food Product Sample Results Food product samples were collected when available from two locations (indicator and control) in 2006 and analyzed for gamma radionuclides in accordance with Table TRM 3.12-1. The 2006 levels remained undetectable, which is consistent with previous operational years. Therefore, since levels continue to remain at background, it can be concluded that plant operations is not impacting this pathway.
2.8 Land Use Census Results The current land use census was conducted for the 2005-06 time period in accordance with RBS Technical Requirements Manual 3.12.2. Although there were some minor changes between the 2004 and 2006 census as seen in Table 2-1, the land use census did not identify any location(s) that yields a calculated dose or dose commitment greater than the values currently being calculated in requirement TSR 3.11.2.3.1. Most of these changes were due to the use of a GPS instrument in locating the resident's bearing and range from the reactor building, as compared to previous methods used in this process. In addition, no dairy animals were found within 8 km of RBS during the 2006 census. This was verified through the County Agents for West Feliciana, East Feliciana and Pointe Coupee parishes. RBS personnel did not perform a garden census since Technical Requirements Manual 3.12.2 allows the routine sampling of broadleaf vegetation in the highest D/Q sector near the site boundary in lieu of the garden census.
19 2.9 Interlaboratory Comparison Results RBS' Environmental Laboratory analyzed interl aboratory comparison samples to fulfill the requirements of Technical Requirements Manual 3.12.3. Attachment 8.1 contains these results.
20 Table 2-1 Land Use Census Results 2006 Item Sector Direction Nearest Residence Range (km) Nearest Milk Animal Range (km) 1 A N 5498 Hwy. 61 1.8 - - 2 B NNE 5435 Hwy. 61 1.6 - - 3 C NE End of Old Hwy. 61 1 1.4 - - 4 D ENE 12657 Powell Station Road 1.4 - - 5 E E 4635 Hwy. 61 2 2.5 - - 6 F ESE 12010 Fairview Way, Star Hill Trace Subdivision 2.8 - - 7 G SE 3379 Hwy. 9643 3 3.7 - - 8 H SSE 11813 Powell Station Road 1.8 - - 9 J S 11649 Powell Station Road 1.8 - - 10 K SSW 8909 Hwy. 981 6.5 - - 11 L SW 4 - - - 12 M WSW 4 - - - 13 N W 11101 Ferdinand Street 6.1 - - 14 P WNW 10426 Old Field Road 3.7 - - 15 Q NW 9537 Hwy.965 5 1.3 - - 16 R NNW Ricks Trailer Park Hwy. 965 6 2.6 - - 1. Address correction in Sector C; range remains at 1.4 km
- 2. Use of GPS reveals resident at a range of 2.59 km in 2006 compared to 2.6 km in Sector E
- 3. New resident at a range of 3.7 km, compared to 4.0 km in 2004 census in sector G. GPS use shows this resident near sector line.
- 4. No resident found in sector L or M within 8 km. distance.
- 5. Incorrect address for sector Q, no change in distance
- 6. New resident at a range of 1.7 km, right on Q/R boundary inside Ricks Trailer Park. Use of GPS determined a couple of trailers are actually in sector R.
21 FIGURE 2-1TLD Indicator Results (2006) Versus Control Data (1986-2005)6.008.0010.0012.00 14.00 16.0018.0020.00TA1TB1TC1TD1TE1TF1TG1TH1TJ1TK1TL1TM1TN1TP1TQ1TR1TLD LocationsmR/Qtr+3-sigma Control-3-sigma Control1st Qtr.062nd Qtr 063rd Qtr 064th Qtr 06 FIGURE 2-2 Gross Beta Indicator Results (2006) Versus Control Data (1986-2005) 0.000 0.010 0.020 0.030 0.040 0.0501/3/20062/13/20063/27/20065/8/20066/19/20067/31/20069/11/200610/23/200612/4/2006pCi/cubic meterAN1AP1AQS2UPPER CONTROL LOWER CONTROL
22 3.0 Radiological Environmental Monitoring Program Summary 3.1 2006 Program Results Summary Table 3.1 summarizes the 2006 REMP results. RBS 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.
23 TABLE 3.1 Radiological Environmental Monitoring Program Summary Name of Facility: River Bend Station Docket No: 50-458 Location of Facility: West Feliciana Parish, Louisiana Reporting Period: January - December 2006 Sample Type ( Units )
Type & Number of Analyses LLD a Indicator Locations Mean ( F )
b [ Range ]
Location with Highest Annual Mean Control Locations Mean ( F )
b [ Range ]
Number of Nonroutine Results d Location c Mean ( F )
b [ Range ] Air Particulates (pCi/m 3 )
Gross Beta 104 0.01 0.024 ( 78 / 78 ) [ 0.013 - 0.048 ]
AN1 ( 0.9 km W )
0.027 ( 26 / 26 ) [ 0.013 - 0.048 ]
0.021 ( 26 / 26 ) [ 0.011 - 0.039 ]
0 Airborne Iodine ( pCi/m 3 ) I-131 104 0.07 <LLD N/A N/A <LLD 0 Indicators TLDs ( mR/Qtr )
Special Interest TLDs ( mR/Qtr )
Control TLDs ( mR/Qtr )
Gamma 64
Gamma 24
Gamma 8 (e)
(e)
(e) 12.08 ( 63 / 64 ) [ 8.77 - 15.54 ]
12.55 ( 23 / 24 ) [ 10.73 - 14.27 ]
N/A TG1 (1.6 km SE) TGS ( 17.0 km SE )
N/A 14.42 ( 4 / 4 ) [ 14.16 - 14.57 ]
13.97 ( 4 / 4 ) [ 13.60 - 14.23 ]
N/A N/A N/A 13.68 ( 8 / 8 ) [ 12.72 - 15.12 ]
0 0
0
24 TABLE 3.1 Radiological Environmental Monitoring Program Summary Name of Facility: River Bend Station Docket No: 50-458 Location of Facility: West Feliciana Parish, Louisiana Reporting Period: January - December 2006 Sample Type ( Units )
Type & Number of Analyses LLD a Indicator Location Mean ( F )
b [ Range ]
Location with Highest Annual Mean Control Locations Mean ( F )
b [ Range ]
Number of Nonroutine Results d Location c Mean ( F )
b [ Range ] Surface Water ( pCi/L )
H-3 10 Gamma 10 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Zr-95 Nb-95 I-131 Cs-134 Cs-137 Ba-140 La-140 3000 15 15 30 15 30 30 15 15 15 18 60 15 <LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD 0 0
0 0
0 0
0 0
0 0
0 0
0
25 TABLE 3.1 Radiological Environmental Monitoring Program Summary Name of Facility: River Bend Station Docket No: 50-458 Location of Facility: West Feliciana Parish, Louisiana Reporting Period: January - December 2006 Sample Type ( Units )
Type & Number of Analyses a LLD a Indicator Locations Mean ( F )
b [ Range ] Location with Highest Annual Mean Control Locations Mean ( F )
b [ Range ]
Number of Nonroutine Results d Location c Mean ( F )
b [ Range ] Groundwater ( pCi/L )
H-3 6 Gamma 6 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Zr-95 Nb-95 I-131 Cs-134 Cs-137 Ba-140 La-140 3000 15 15 30 15 30 30 15 15 15 18 60 15 <LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A <LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD <LLD <LLD
<LLD 0 0
0 0
0 0
0 0
0 0
0 0
0 Shoreline Sediment ( pCi/kg )
f Gamma 4 Cs-134 Cs-137 150 180 <LLD 61.14 - 76.09 N/A SEDD N/A 68.62 <LLD 26.24 - 66.27 0
0 26 TABLE 3.1 Radiological Environmental Monitoring Program Summary Name of Facility: River Bend Station Docket No: 50-458 Location of Facility: West Feliciana Parish, Louisiana Reporting Period: January - December 2006 Sample Type ( Units )
Type & Number of Analyses LLD a Indicator Location Mean ( F )
b [ Range ]
Location with Highest Annual Mean Control Locations Mean ( F )
b [ Range ]
Number of Nonroutine Results d Location c Mean ( F )
b [ Range ] Fish ( pCi/kg )
Gamma 4 Mn-54 Fe-59 Co-58
Co-60 Zn-65 Cs-134 Cs-137 130 260 130 130 260 130 150
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
N/A N/A N/A
N/A N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD
<LLD 0
0 0
0 0
0 0 Food Products ( pCi/kg )
I-131 8 Gamma 8 Cs-134 Cs-137 60 60 80 <LLD
<LLD
<LLD N/A
N/A N/A N/A
N/A N/A <LLD
<LLD
<LLD 0
0 0 a LLD = Required lower limit of detection base d on RBS Technical Requirements Manual Table 3.12.1-3.
b Mean and range based upon detectable measurements only. Fr action of detectable measurements at specified locations is ind icated in parenthesis (F).
c Locations are specified (1) by name and (2) direction and distance relative to reactor site.
d Non-routine results are those which exceed ten times the co ntrol station value. If no co ntrol station value is available, the result is considered non-routine if it exceeds ten times the preoperational value for the location.
e LLD is not defined in RBS Tec hnical Requirements Manual Table 3.12.1-3.
f Control location for sedimen t is upstream surface water sample.
27 Attachment 1 2006 Radiological Monitoring Report Summary of Monitoring Results
28 TABLE OF CONTENTS
ATTACHMENT 1.1 AIR SAMPLE LOCATION AN1 29
ATTACHMENT 1.2 AIR SAMPLE LOCATION AP1 30
ATTACHMENT 1.3 AIR SAMPLE LOCATION AQS2 31
ATTACHMENT 1.4 AIR SAMPLE LOCATION AGC 32
ATTACHMENT 2.1 THERMOLUMINESCENT DOSIMETERS 33
ATTACHMENT 3.1 SURFACE WATER 34
ATTACHMENT 4.1 GROUNDWATER 35
ATTACHMENT 5.1 SHORELINE SEDIMENT 36
ATTACHMENT 6.1 FOOD PRODUCTS 36
ATTACHMENT 7.1 FISH AND INVERTEBRATES 37
ATTACHMENT 8.1 INTERLABORATORY COMPARISON RESULTS 38
29 Attachment 1.1 Sample Type: Air Particulate and Charcoal Cartridge - Indicator Location AN1 Analysis:
Gross Beta and Iodine Units: pCi/m 3 LLD (pCi/m
- 3) 0.07 0.01 LAB ID START DATE END DATE I-131 GROSS BETA 20060002 12/19/2005 1/3/2006 < 0.006 0.033 +/- 0.002 20060048 1/3/2006 1/16/2006 < 0.008 0.029 +/- 0.002 20060098 1/16/2006 1/30/2006 < 0.008 0.023 +/- 0.001 20060179 1/30/2006 2/13/2006 < 0.007 0.023 +/- 0.001 20060240 2/13/2006 2/28/2006 < 0.005 0.026 +/- 0.001 20060275 2/28/2006 3/13/2006 < 0.010 0.029 +/- 0.002 20060323 3/13/2006 3/27/2006 < 0.008 0.023 +/- 0.001 20060404 3/27/2006 4/10/2006 < 0.009 0.024 +/- 0.001 20060474 4/10/2006 4/24/2006 < 0.008 0.021 +/- 0.001 20060544 4/24/2006 5/8/2006 < 0.010 0.023 +/- 0.001 20060571 5/8/2006 5/22/2006 < 0.009 0.024 +/- 0.001 20060599 5/22/2006 6/5/2006 < 0.008 0.025 +/- 0.001 20060671 6/5/2006 6/19/2006 < 0.010 0.033 +/- 0.002 20060716 6/19/2006 7/3/2006 < 0.009 0.026 +/- 0.001 20060776 7/3/2006 7/17/2006 < 0.008 0.014 +/- 0.001 20060839 7/17/2006 7/31/2006 < 0.009 0.020 +/- 0.001 20060877 7/31/2006 8/14/2006 < 0.009 0.017 +/- 0.001 20060932 8/14/2006 8/28/2006 < 0.008 0.017 +/- 0.001 20060966 8/28/2006 9/11/2006 < 0.008 0.038 +/- 0.002 20061006 9/11/2006 9/25/2006 < 0.009 0.028 +/- 0.002 20061083 9/25/2006 10/9/2006 < 0.008 0.048 +/- 0.002 20061146 10/9/2006 10/23/2006
< 0.006 0.028 +/- 0.002 20061217 10/23/2006 11/6/2006 < 0.007 0.032 +/- 0.002 20061259 11/6/2006 11/20/2006
< 0.008 0.033 +/- 0.002 20061307 11/20/2006 12/4/2006 < 0.007 0.028 +/- 0.002 20061367 12/4/2006 12/18/2006
< 0.008 0.025 +/- 0.0006 Totals: Average: 0.027 Maximum: 0.048 Minimum: 0.014 30 Attachment 1.2 Sample Type: Air Particulate and Charcoal Cartridge - Indicator Location AP1 Analysis:
Gross Beta and Iodine Units: pCi/m 3 LLD (pCi/m
- 3) 0.07 0.01 LAB ID START DATE END DATE I-131 GROSS BETA 20060001 12/19/2005 1/3/2006 < 0.008 0.027 +/- 0.001 20060047 1/3/2006 1/16/2006 < 0.008 0.020 +/- 0.001 20060097 1/16/2006 1/30/2006 < 0.006 0.018 +/- 0.001 20060178 1/30/2006 2/13/2006 < 0.008 0.019 +/- 0.001 20060239 2/13/2006 2/28/2006 < 0.007 0.019 +/- 0.001 20060274 2/28/2006 3/13/2006 < 0.008 0.028 +/- 0.002 20060322 3/13/2006 3/27/2006 < 0.008 0.021 +/- 0.001 20060403 3/27/2006 4/10/2006 < 0.007 0.022 +/- 0.001 20060473 4/10/2006 4/24/2006 < 0.006 0.022 +/- 0.001 20060543 4/24/2006 5/8/2006 < 0.009 0.022 +/- 0.001 20060570 5/8/2006 5/22/2006 < 0.008 0.019 +/- 0.001 20060598 5/22/2006 6/5/2006 < 0.008 0.022 +/- 0.001 20060670 6/5/2006 6/19/2006 < 0.008 0.028 +/- 0.002 20060715 6/19/2006 7/3/2006 < 0.007 0.023 +/- 0.001 20060775 7/3/2006 7/17/2006 < 0.008 0.014 +/- 0.001 20060838 7/17/2006 7/31/2006 < 0.006 0.015 +/- 0.001 20060876 7/31/2006 8/14/2006 < 0.008 0.016 +/- 0.001 20060931 8/14/2006 8/28/2006 < 0.008 0.015 +/- 0.001 20060965 8/28/2006 9/11/2006 < 0.006 0.032 +/- 0.001 20061005 9/11/2006 9/25/2006 < 0.006 0.022 +/- 0.001 20061082 9/25/2006 10/9/2006 < 0.008 0.037 +/- 0.002 20061145 10/9/2006 10/23/2006
< 0.008 0.024 +/- 0.001 20061216 10/23/2006 11/6/2006 < 0.008 0.028 +/- 0.001 20061258 11/6/2006 11/20/2006
< 0.006 0.030 +/- 0.001 20061306 11/20/2006 12/4/2006 < 0.007 0.025 +/- 0.001 20061366 12/4/2006 12/18/2006
< 0.009 0.023 +/- 0.0006 Totals: Average: 0.023 Maximum: 0.037 Minimum: 0.014 31 Attachment 1.3 Sample Type: Air Particulate and Charcoal Cartridge - Indicator Location AQS2 Analysis:
Gross Beta and Iodine Units: pCi/m 3 LLD (pCi/m
- 3) 0.07 0.01 LAB ID START DATE END DATE I-131 GROSS BETA 20060003 12/19/2005 1/3/2006 < 0.008 0.023 +/- 0.001 20060049 1/3/2006 1/16/2006 < 0.009 0.022 +/- 0.001 20060099 1/16/2006 1/30/2006 < 0.008 0.019 +/- 0.001 20060180 1/30/2006 2/13/2006 < 0.007 0.019 +/- 0.001 20060241 2/13/2006 2/28/2006 < 0.007 0.022 +/- 0.001 20060276 2/28/2006 3/13/2006 < 0.007 0.027 +/- 0.001 20060324 3/13/2006 3/27/2006 < 0.007 0.020 +/- 0.001 20060405 3/27/2006 4/10/2006 < 0.008 0.023 +/- 0.001 20060475 4/10/2006 4/24/2006 < 0.009 0.018 +/- 0.001 20060545 4/24/2006 5/8/2006 < 0.007 0.022 +/- 0.001 20060572 5/8/2006 5/22/2006 < 0.006 0.019 +/- 0.001 20060600 5/22/2006 6/5/2006 < 0.007 0.023 +/- 0.001 20060672 6/5/2006 6/19/2006 < 0.008 0.030 +/- 0.001 20060717 6/19/2006 7/3/2006 < 0.007 0.024 +/- 0.001 20060777 7/3/2006 7/17/2006 < 0.007 0.016 +/- 0.001 20060840 7/17/2006 7/31/2006 < 0.007 0.013 +/- 0.001 20060878 7/31/2006 8/14/2006 < 0.008 0.015 +/- 0.001 20060933 8/14/2006 8/28/2006 < 0.007 0.015 +/- 0.001 20060967 8/28/2006 9/11/2006 < 0.006 0.029 +/- 0.001 20061007 9/11/2006 9/25/2006 < 0.007 0.022 +/- 0.001 20061084 9/25/2006 10/9/2006 < 0.008 0.041 +/- 0.002 20061147 10/9/2006 10/23/2006
< 0.008 0.025 +/- 0.001 20061218 10/23/2006 11/6/2006 < 0.007 0.028 +/- 0.001 20061260 11/6/2006 11/20/2006
< 0.007 0.029 +/- 0.001 20061308 11/20/2006 12/4/2006 < 0.010 0.022 +/- 0.001 20061368 12/4/2006 12/18/2006
< 0.007 0.022 +/- 0.0006 Totals: Average: 0.023 Maximum: 0.041 Minimum: 0.013 32 Attachment 1.4 Sample Type: Air Particulate and Charcoal Cartridge - Control Location AGC Analysis: Gross Beta and Iodine Units: pCi/m 3 LLD (pCi/m
- 3) 0.07 0.01 LAB ID START DATE END DATE I-131 GROSS BETA 20060004 12/19/2005 1/3/2006 < 0.007 0.023 +/- 0.001 20060050 1/3/2006 1/16/2006 < 0.007 0.021 +/- 0.001 20060100 1/16/2006 1/30/2006 < 0.007 0.018 +/- 0.001 20060181 1/30/2006 2/13/2006 < 0.006 0.018 +/- 0.001 20060242 2/13/2006 2/28/2006 < 0.005 0.020 +/- 0.001 20060277 2/28/2006 3/13/2006 < 0.007 0.025 +/- 0.001 20060325 3/13/2006 3/27/2006 < 0.008 0.020 +/- 0.001 20060406 3/27/2006 4/10/2006 < 0.005 0.020 +/- 0.001 20060476 4/10/2006 4/24/2006 < 0.007 0.013 +/- 0.001 20060546 4/24/2006 5/8/2006 < 0.007 0.022 +/- 0.001 20060573 5/8/2006 5/22/2006 < 0.008 0.020 +/- 0.001 20060601 5/22/2006 6/5/2006 < 0.006 0.022 +/- 0.001 20060673 6/5/2006 6/19/2006 < 0.007 0.029 +/- 0.001 20060718 6/19/2006 7/3/2006 < 0.007 0.022 +/- 0.001 20060778 7/3/2006 7/17/2006 < 0.008 0.011 +/- 0.001 20060841 7/17/2006 7/31/2006 < 0.008 0.012 +/- 0.001 20060879 7/31/2006 8/14/2006 < 0.007 0.015 +/- 0.001 20060934 8/14/2006 8/28/2006 < 0.005 0.016 +/- 0.001 20060968 8/28/2006 9/11/2006 < 0.008 0.030 +/- 0.001 20061008 9/11/2006 9/25/2006 < 0.010 0.023 +/- 0.001 20061085 9/25/2006 10/9/2006 < 0.007 0.039 +/- 0.002 20061148 10/9/2006 10/23/2006
< 0.008 0.022 +/- 0.001 20061219 10/23/2006 11/6/2006 < 0.006 0.026 +/- 0.001 20061261 11/6/2006 11/20/2006
< 0.007 0.026 +/- 0.001 20061309 11/20/2006 12/4/2006 < 0.010 0.022 +/- 0.001 20061369 12/4/2006 12/18/2006 < 0.009 0.022 +/- 0.0006 Totals: Average: 0.021 Maximum: 0.039 Minimum: 0.011 33 Attachment 2.1 Sample Type: Thermoluminescent Dosimeters (TLD)
Analysis:
mR Exposure Units: mR/Qtr INDICATORS 1ST QTR 2ND QTR 3RD QTR 4TH QTR MEAN TA1 11.72 10.25 9.89 10.03 10.47 TB1 14.57 14.17 14.07 14.11 14.23 TC1 13.20 13.22 12.58 13.00 TD1 13.66 14.49 13.60 13.74 13.87 TE1 13.09 13.22 12.95 12.90 13.04 TF1 12.18 12.58 12.67 11.79 12.30 TG1 14.57 14.38 14.16 14.57 14.42 TH1 11.61 11.31 11.10 10.49 11.13 TJ1 12.40 11.94 11.84 11.60 11.95 TK1 12.97 13.00 11.93 13.09 12.75 TL1 13.31 12.58 12.67 12.44 12.75 TM1 11.04 10.99 10.91 10.86 10.95 TN1 10.58 10.99 10.63 10.49 10.67 TP1 11.38 11.84 11.75 10.31 11.32 TQ1 9.78 8.77 9.24 9.47 9.32 TR1 10.12 15.54 8.96 9.93 11.14 MAX 14.57 15.54 14.16 14.57 14.42 AVG 12.26 12.45 11.81 11.72 12.08 MIN 9.78 8.77 8.96 9.47 9.32 SPECIAL INTEREST 1ST QTR 2ND QTR 3RD QTR 4TH QTR MEAN TCS 11.45 11.24 10.73 11.51 11.23 TGS 14.23 13.96 13.60 14.11 13.97 TNS 11.45 11.34 11.42 11.40 TRS 14.23 13.64 12.77 13.74 13.59 TQS1 11.45 14.27 13.23 13.83 13.20 TQS2 14.23 10.89 11.10 11.42 11.91 MAX 14.23 14.27 13.60 14.11 13.97 AVG 12.84 12.80 12.13 12.67 12.55 MIN 11.45 10.89 10.73 11.42 11.23 CONTROLS 1ST QTR 2ND QTR 3RD QTR 4TH QTR MEAN TAC 13.77 15.12 14.07 14.39 14.34 TEC 12.97 13.43 12.95 12.72 13.02 MAX 13.77 15.12 14.07 14.39 14.34 AVG 13.37 14.27 13.51 13.55 13.68 MIN 12.97 13.43 12.95 12.72 13.02 INDICATOR CONTROL SPECIAL MAX 15.54 15.12 14.27 AVG 12.06 13.68 12.61 MIN 8.77 12.72 10.73 34 Attachment 3.1 Sample Type:
Surface Water Analysis: Gamma Isotopic and Tritium Units: pCi/l LLD (pCi/l) 15 15 30 15 30 15 30 15 15 18 60 15 LAB ID LOCATION DATE MN-54 C0-58 FE-59 CO-60 ZN-65 NB-95 ZR-95 I-131 CS-134 CS-137 BA-140 LA-140 20060006 SWU 1/5/2006 < 4.68 < 5.02 < 6.36 < 6.31 < 9.23 < 4.97 < 6.78 < 4.71 < 4.67 < 5.53 < 16.95 < 5.64 20060007 SWD 1/5/2006 < 4.32 < 4.27 < 7.45 < 4.39 < 8.83 < 4.68 < 8.01 < 4.48 < 4.45 < 4.84 < 15.92 < 4.16 20060391 SWU 4/5/2006 < 4.99 < 4.43 < 10.73 < 4.12 < 7.15 < 5.67 < 7.58 < 5.16 < 5.88 < 6.37 < 17.76 < 6.56 20060392 SWD 4/5/2006 < 4.88 < 3.33 < 4.18 < 4.67 < 8.78 < 4.67 < 7.33 < 4.44 < 4.45 < 4.69 < 10.93 < 4.77 20060751 SWU 7/10/2006 < 3.47 < 4.07 < 8.99 < 4.23 < 5.39 < 4.32 < 6.42 < 4.04 < 4.11 < 4.87 < 13.53 < 4.19 20060752 SWD 7/10/2006 < 3.45 < 4.43 < 7.34 < 4.28 < 8.68 < 3.51 < 7.92 < 4.88 < 4.50 < 5.19 < 18.36 < 6.88 20061060 SWU 10/5/2006 < 5.25 < 6.80 < 7.79 < 5.33 < 6.76 < 4.96 < 8.95 < 6.13 < 5.56 < 5.85 < 19.89 < 6.12 20061061 SWD 10/5/2006 < 5.53 < 5.93 < 13.20 < 4.85 < 12.87 < 6.64 < 9.55 < 4.75 < 6.39 < 6.59 < 19.09 < 4.35 20061376 SWD 12/20/2006 < 7.46 < 8.00 < 11.64 < 5.29 < 10.23 < 8.48 < 10.55 < 7.38 < 6.67 < 6.66 < 25.21 < 8.49 20061377 SWD dup 12/20/2006 < 5.68 < 5.85 < 10.16 < 4.36 < 13.24 < 8.08 < 9.79 < 6.31 < 5.24 < 7.01 < 20.76 < 6.78 LLD (pCi/l) 3000 LAB ID LOCATION DATE TRITIUM 20060006 SWU 1/5/2006 < 583.00 20060007 SWD 1/5/2006 < 595.00 20060391 SWU 4/5/2006 < 617.23 20060392 SWD 4/5/2006 < 583.32 20060751 SWU 7/10/2006 < 575.00 20060752 SWD 7/10/2006 < 571.00 20061060 SWU 10/5/2006 < 576.57 20061061 SWD 10/5/2006 < 574.74 20061376 SWD 12/20/2006
< 576.77 20061377 SWD dup 12/20/2006
< 575.98 Attachment 4.1 35 Sample Type:
Groundwater Analysis: Gamma Isotopic and Tritium Units: pCi/l LLD (pCi/l) 15 15 30 15 30 15 30 15 15 18 60 15 LAB ID LOCATION DATE MN-54 C0-58 FE-59 CO-60 ZN-65 NB-95 ZR-95 I-131 CS-134 CS-137 BA-140 LA- 140 20060624 WU 6/8/2006 < 6.52 < 4.76 < 13.71 < 6.56 < 14.02 < 9.00 < 11.35 < 8.47 < 6.22 < 7.03 < 23.49 < 11.74 20060625 WU DUP 6/8/2006 < 6.78 < 7.37 < 12.06 < 6.30 < 15.27 < 7.85 < 12.76 < 7.93 < 7.77 < 6.79 < 25.92 < 9.52 20060626 WD 6/8/2006 < 6.22 < 4.41 < 14.50 < 4.85 < 15.45 < 7.67 < 11.33 < 6.92 < 6.16 < 7.09 < 21.69 < 5.96 20060627 WD DUP 6/8/2006 < 7.21 < 6.37 < 11.82 < 6.46 < 8.88 < 7.53 < 9.90 < 7.56 < 7.02 < 5.76 < 22.57 < 8.96 20061333 WU 12/12/2006
< 6.69 < 5.93 < 11.13 < 6.66 < 14.41 < 8.56 < 9.22 < 6.50 < 7.09 < 6.37 < 21.75 < 13.81 20061336 WD 12/12/2006
< 4.34 < 5.43 < 7.94 < 4.90 < 12.99 < 6.24 < 9.05 < 5.88 < 6.79 < 5.08 < 18.67 < 6.72 LLD (pCi/l) 3000 LAB ID LOCATION DATE TRITIUM 20060624 WU 6/8/2006 < 568 20060625 WU DUP 6/8/2006 < 586 20060626 WD 6/8/2006 < 582 20060627 WD DUP 6/8/2006 < 578 20061333 WU 12/12/2006
< 597 20061336 WD 12/12/2006
< 587 36 Attachment 5.1 Sample Type:
Shoreline Sediment SEDD Analysis: Gamma Isotopic Units: pCi/kg, dry LLD (pCi/kg) 150 180 LAB ID DATE CS-134 CS-137 20060385 4/4/2006 < 31.66 61.14 +/- 10.69 20060393 4/5/2006 < 31.07 76.09 +/- 11.50 Sample Type:
Shoreline Sediment SEDU Analysis: Gamma Isotopic Units: pCi/kg, dry 20060386 4/4/2006 < 31.78 26.24 +/- 7.43 20060397 4/5/2006 < 28.83 66.27 +/- 11.63
.1 Sample Type:
Food Products Analysis: Gamma Isotopic Units: pCi/kg, wet
LLD(pCi/kg, wet) 60 60 80 LAB ID LOCATION DATE I-131 CS-134 CS-137 20060084 GN1 1/26/2006 < 57.27 < 48.77 < 52.92 20060197 GQC 2/14/2006 < 22.67 < 25.96 < 22.95 20060504 GN1 4/28/2006 < 38.64 < 42.47 < 31.66 20060583 GQC 5/23/2006 < 36.32 < 42.53 < 57.31 20060813 GN1 7/25/2006 < 43.09 < 34.20 < 39.32 20060935 GQC 8/28/2006 < 58.58 < 56.71 < 52.30 20061172 GN1 10/26/2006
< 43.08 < 50.09 < 41.64 20061332 GQC 12/7/2006 < 47.91 < 40.02 < 26.34 37 Attachment 7.1 Sample Type:
Fish Analysis: Gamma Isotopic Units: pCi/kg, wet
LLD (pCi/kg) 130 130 260 130 260 130 150 LAB LOCATION DATE MN-54 C0-58 FE-59 CO-60 ZN-65 CS-134 CS-137 20061394 FD Catfish 12/20/2006
< 19.31 < 29.70 < 36.16 < 36.41 < 48.24 < 19.99 < 22.87 20061395 FD 12/20/2006
< 27.59 < 23.62 < 68.24 < 39.43 < 73.41 < 25.05 < 29.82 20061396 FU Catfish 12/20/2006
< 16.86 < 14.24 < 51.09 < 19.94 < 43.31 < 17.54 < 16.49 20061397 FU 12/20/2006
< 18.83 < 24.68 < 46.67 < 25.02 < 48.82 < 16.79 < 20.96 38 Attachment 8.1 Sample Type:
Interlaboratory Comparison Analysis: Gross Beta, Iodine-131, Tritium, and Gamma Isotopic
ENVIRONMENTAL (CROSS-CHECK) PR OGRAM PARTICIPATION RESULTS Sample Type (units) Analytics # Date Analysis Known value (a) RBS Value RBS N-DEV (b) RBS N-RANGE (c)
Charcoal Cartridge (pCi/filter)
E5008-125 6/8/2006 I-131 66.4 73 1.15 0.297 Water E5007-125 6/8/2006 BETA 169 125 -3.01 0.093 (pCi/liter)
E5006-125 6/8/2006 CR-51 210 222 0.64 0.544 MN-54 119 129.0 0.97 0.199 CO-58 81.2 82.0 0.11 0.436 FE-59 75.8 77.3 0.23 0.779 CO-60 104 105 0.15 0.227 ZN-65 150 157 0.56 0.394 I-131 74.7 79.7 0.77 0.211 CS-134 103 101 -0.22 0.153 CS-137 95.1 104 1.12 0.248 CE-141 149.00 157 0.62 0.159 E5083-125 9/13/2006 H-3 11000 10926 -0.08 0.142 Air Filter E5081-125 9/13/2006 BETA 88.4 99.2 1.41 0.058 (pCi/filter)
E5237-125 2/12/2007 CR-51 145 141 -0.33 0.277 MN-54 171 185.3 0.97 0.104 CO-58 77.9 79.6 0.26 0.369 FE-59 50.2 54.6 1.01 0.745 CO-60 491.0 493.9 0.07 0.030 ZN-65 243 277.6 1.64 0.107 CS-134 248.0 243.1 -0.23 0.094 CS-137 423 443 0.54 0.028 CE-141 145.0 125 -1.56 0.065 Sediment E5082-125 9/13/2006 CR-51 0.423 0.421 -0.05 0.465 (pCi/gram)
MN-54 0.169 0.169 0.02 0.163 CO-58 0.164 0.155 -0.61 0.600 FE-59 0.066 0.062
-0.64 0.776 CO-60 0.201 0.182 -1.11 0.196 ZN-65 0.218 0.210 -0.42 0.578 CS-134 0.128 0.126 -0.15 0.185 CS-137 0.362 0.378 0.51 0.174 CE-141 0.129 0.119 -0.90 0.275
39 RIVER BEND STATION ENVIRONMENTAL (CROSS-CHECK) PR OGRAM PARTICIPATION RESULTS Sample Type (units) Analytics # Date Analysis Known Value (a)
RBS Value RBS N-DEV (b) RBS N-RANGE (c)
Milk E5009-125 6/8/2006 CR-51 259 243 -0.70 0.395 (pCi/liter)
MN-54 146 150.0 0.32 0.135 CO-58 100 101.0 0.12 0.118 FE-59 93.6 104.0 1.28 0.463 CO-60 104 128 2.63 0.189 ZN-65 185 183.0 -0.12 0.170 I-131 63.2 60.7 -0.46 0.187 CS-134 127 122.7 -0.39 0.062 CS-137 117 115 -0.20 0.067 CE-141 184 184 0.02 0.150 NOTES: (a) The known value as determined by Analytics. (b) The normalized deviation from the "known" value is computed from the deviation and the standard error of the mean; +/-2.00 is the warning limit and +/-3.00 is the control limit. This is a measure of accuracy of the analytical methods.
(c) The normalized range is computed from the mean range, the control limit, and the standard error of the range; +2.000 is the warning limit and +3.000 is the control limit. This is a measure of precision of the analytical methods.
Exceptions:
There was one result outside the control limits for accuracy in the 2006 Interlaboratory Comparison program studies. The 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 for the test. This same sample was counted on a new alpha/beta counter. The results on the new machine were also 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. Analytics was contacted to see if there was a low bias of reporting gross beta in water by other participants. All other participant results looked normal with no low bias responses with the sample. 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. RBS will review sample preparation procedures and techniques to minimize future sample preparation technique problems.
40 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. Ninety-eight percent of RBS environmental crosscheck results were within control limits for accuracy and 100% for precision during 2006.