ML22119A124
| ML22119A124 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 04/14/2022 |
| From: | Hilbert L Virginia Electric & Power Co (VEPCO) |
| To: | Document Control Desk, Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation |
| References | |
| 22-109 | |
| Download: ML22119A124 (80) | |
Text
{{#Wiki_filter:VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 April 14, 2022 United States Nuclear Regulatory Commission Serial No. 22-109 Attention: Document Control Desk NAPS: CNC Washington, D. C. 20555 Docket Nos. 50-338/339 72-16 72-56 License Nos. NPF-4/7 SNM-2507 VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION ENERGY VIRGINIA) NORTH ANNA POWER STATION UNIT NOS. 1 AND 2 INDEPENDENT SPENT FUEL STORAGE INSTALLATION (ISFSI} ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT In accordance with North Anna Units 1 and 2 Technical Specification 5.6 .2 and the North Anna Independent Spent Fuel Storage Installation Technical Specification 5.5.2, enclosed is the 2021 Annual Radiological Environmental Operating Report. The Radiological Environmental Operating Report provides the details associated with the Radiological Environmental Monitoring Program . If you have any questions or require additional information, please contact Mr. Marcus A. Hofmann at (540) 894-2100 . ~7iJI Lisa Hilbert Site Vice President Enclosure Commitments made in this letter: None
Serial No. 22-109 NAPS Annual Radiological Environmental Operating Report Page 2 of 2 cc: U. S. Nuclear Regulatory Commission Region II Marquis One Tower 245 Peachtree Center Ave., NE Suite 1200 Atlanta , Georgia 30303-1257 Director, Division of Spent Fuel Management Office of Nuclear Material Safety and Safeguards U. S. Nuclear Regu latory Commission Washington, D. C. 20555 NRC Senior Resident Inspector North Anna Power Station
Dominion Energy North Anna Power Station Radiological Environmental Monitoring Program January 1, 2021 to December 31, 2021 Prepared by Dominion Energy, North Anna Power Station
Annual Radiological Environmental Operating Report North Anna Power Station January 1, 2021 to December 31, 2021 Prepared by: James W. Dunnavant Superv1sor Radiological Analysis and Instrumentation Dominion Energy North Anna Power Station Reviewed by: Erin M. Salling\ Superintendent Health Physics Technical Services Dominion Energy North Anna Power Station Approved by: George R. Simmons Manager Radiological Protection and Chemistry Dominion Energy North Anna Power Station 2
Table of Contents
- 1. EXECUTIVE
SUMMARY
.............................................................................................................. 4
- 2. PROGRAM DESCRIPTION ............................................................................................................ 6 2.1 Introduction ............................................................................................................................. 6 2.2 Sampling and Analysis Program ............................................................................................. 7
- 3. ANALYTICAL RESULTS ............................................................................................................ 21 3 .1 Summary of Results .............................................................................................................. 21 3.2 Analytical Results of2021 REMP Samples ......................................................................... 30
- 4. DISCUSSION OF RESULTS ......................................................................................................... 58 4.1 Gamma Exposure Rate ......................................................................................................... 58 4.2 Airborne Gross Beta .............................................................................................................. 59 4.3 Airborne Radioiodine ............................................................................................................. 61 4.4 Air Particulate Gamma ................................................................... ,..................................... 61 4.5 Air Particulate Strontium ...................................................................................................... 61 4.6 Soil ........................................................................................................................................ 61 4.7 Precipitation .......................................................................................................................... 61 4.8 Cow Milk .............................................................................................................................. 61 4.9 Food Products and Vegetation .............................................................................................. 62 4.10 Well Water .......................................................................................................................... 62 4.11 River Water .................................,.; ...................................................................................... 62 4.12 Surface Water ....................................................................................................................... 63 4.13 Bottom Sediment ................................................................................................................ 63 4.14 Shoreline Soil. ..................................................................................................................... 64 4.15 Fish ...................................................................................................................................... 65
- 5. PROGRAM EXCEPTIONS ........................................................................................................... 66 REFERENCES .................................................................................................................................... 67 APPENDICES ..................................................................................................................................... 68 APPENDIX A: LAND USE CENSUS ........................................................................................... 69 APPENDIX B:
SUMMARY
OF INTERLABORATORY COMPARISONS ............................... 72 3
- 1. EXECUTIVE
SUMMARY
This document is a detailed report of the 2021 North Anna Nuclear Power Station Radiological Environmental Monitoring Program (REMP). It is submitted in accordance with North Anna Unit 1 and 2 Technical Specification 5.6.2 and North Anna Independent Spent Fuel Storage Installation (ISFSI) Technical Specification 5.5.2. Radioactivity levels from January 1 through December 31, 2021, in water, silt, shoreline sediment, aquatic biota, food products, vegetation, and direct exposure pathways have been analyzed, evaluated and summarized. The REMP is designed to confirm that radiological effluent releases are As Low As Reasonably Achievable (ALARA), no undue environmental effects occur, and the health and safety of the public are protected. The program also detects any unexpected environmental processes that could allow radiation accumulations in the environment or food pathway chains. Radiation and radioactivity in the environment are monitored within a 25-mile radius of the station. North Anna Power Station (NAPS) personnel collect a variety of samples within this area. A number of sampling locations for each medium are selected using available meteorological, land use, and water use data. Two types of samples are obtained. Control samples are collected from areas that are beyond the measurable influence of North Anna Power Station (NAPS) or any other nuclear facility. These samples are used as reference data. Normal background radiation levels, or radiation present due to causes other than North Anna Power Station (NAPS), can be compared to the environment surrounding the station. Indicator samples are the second sample type obtained. These samples show how much radiation is contributed to the environment by the station. Indicator samples are taken from areas close to the station where any station contribution will be at the highest concentration. Prior to station operation, samples were collected and analyzed to determine the amount of radioactivity present in the area. The resulting values are used as a "pre-operational baseline." Analysis results from the indicator samples are compared to both current control sample values and the pre-operational baseline to determine if changes in radioactivity levels are attributable to station operations, or causes such as the Chernobyl accident, Fukushima Daiichi or natural variation. Mirion Technologies provided thermoluminescent dosimetry (TLD) services and Teledyne Brown Engineering Environmental Services provided radioanalytical services. Participation in an Interlaboratory Comparison Program provides an independent check of sample measurement precision and accuracy. Typically, radioactivity levels in the environment are so low that analysis values frequently fall below the minimum detection limits of state-of-the-art measurement methods. Because of this, the Nuclear Regulatory Commission (NRC) requires equipment used for radiological environmental monitoring be able to detect specified minimum Lower Limits of Detection (LLDs). This ensures that analyses are as accurate as possible. The NRC also mandates a reporting level for certain radionuclides. Licensed nuclear facilities must report the radionuclide activities in those environmental samples that are equal to or greater than the specified reporting level. Environmental radiation levels are sometimes referred to as a percent of the reporting level. Analytical results are reported for all possible radiation exposure pathways to man. These pathways include airborne, water, aquatic, terrestrial, and direct radiation exposure. The airborne exposure pathway includes radioactive airborne iodine and particulates, and precipitation. The 2021 airborne results were similar to previous years. Fallout or natural radioactivity levels remained at levels consistent with past years' results. Water and aquatic exposure pathway samples include precipitation, surface, river and well water, silt and shoreline sediments, and fish. The average tritium activity in surface water for 2021 was 2658 pCi/liter. No other plant related isotopes were reported in any surface or river water. River water collected from the North Anna River, 5.8 miles downstream of the site had an average tritium level of 2610 pCi/liter. No plant related isotopes were detected in quarterly precipitation samples. Silt samples indicated the presence of naturally 4
occurring potassium-40 and thorium and uranium decay daughters at levels consistent with the natural background. Plant related isotope, Cs-13 7, was not identified in any indicator sample during the reporting period. The detection of Cs-137 in bottom sediment is historically common with positive indication usually apparent in both indicator and control samples. Shoreline soil, which may provide a direct exposure pathway, indicated the presence of potassium-40 and thorium and uranium decay daughters also at levels consistent with natural levels. No plant related isotope was detected in the indicator or control locations in shoreline soil. No plant related isotope was detected in fish samples from either Lake Anna or the control location, Lake Orange. Soil samples, which are collected every three years from twelve stations, were not collected in 2021. During the preoperational phase Cs-137 was routinely detected and was attributed to fallout. Levels during this phase varied by location and date and ranged from 88 to 1390 pCi/Kg. The average was 645 pCi/kg. The terrestrial exposure pathway includes milk and food/vegetation products. No milk samples were obtained during the reporting period since the last operating dairy farm within the sampling area closed on O1/01/2018 rendering milk samples unavailable. No plant related isotope was detected in any vegetation sample. Low levels of Cs-137 have been detected intermittently in past years due to weapons testing, Chernobyl, and Fukushima. The direct exposure pathway measures environmental radiation doses by use of thermoluminescent dosimeters (TLDs). TLD results have remained essentially constant over the years. During 2021, as in previous years, operation of the North Anna Power Station and the Independent Spent Fuel Storage Installation (ISFSI) created no adverse environmental effects or health hazards. The maximum total body dose calculated for a hypothetical individual at the station site boundary due to liquid and gaseous effluents released from the station during 2021 was 0.357 millirem. For reference, this dose may be compared to the 620 millirem average annual exposure to every person in the United States from natural and man-made sources. Natural background sources in the environment provide approximately 50% of radiation exposure to man, while medical uses provide approximately 48%. By comparison, nuclear power- contributes less than 0.1 %. These results demonstrate not only compliance with federal and state regulations but also demonstrate the adequacy of radioactive effluent control at North Anna Power Station. 5
- 2. PROGRAM DESCRIPTION 2.1 Introduction This report documents the 2021 North Anna Power Station operational Radiological Environmental Monitoring Program (REMP).
The North Anna Power Station of Virginia Electric and Power Company (Dominion Energy) is located on Lake Anna in Mineral, Virginia, approximately 35 miles southwest of Fredericksburg, Virginia. The site consists of two units, each with a pressurized water reactor (PWR) nuclear steam supply system and turbine generator furnished by Westinghouse Electric Corporation. Each unit has a gross electrical output of 1029 megawatts electric (MWe). Unit 1 achieved commercial operation on June 6, 1978 and Unit 2 on December 14, 1980. An independent spent fuel storage facility was licensed for dry cask storage of spent fuel in 1998. The United States Nuclear Regulatory Commission (USNRC) regulations require that nuclear power plants be designed, constructed, and operated to keep levels of radioactive material in effluents to unrestricted areas as low as reasonably achievable (ALARA). To ensure these criteria are met, the operating license for North Anna Power Station includes Technical Specifications which address the release of radioactive effluents. In-plant monitoring is used to ensure release limits are not exceeded. As a precaution against unexpected or undefined environmental processes which might allow undue accumulation of radioactivity in the environment, a program for monitoring the plant environs is also included in the North Anna Power Station Offsite Dose Calculation Manual (ODCM). North Anna Power Station is responsible for collecting the various indicator and control environmental samples. Mirion Technologies is utilized for processing the TLDs. Teledyne Brown Engineering Environmental Services (TBE) is utilized for sample analyses. The results of the analyses are used to determine if changes in radioactivity levels may be attributable to station operations. Measured values are compared with control levels, which vary with time due to external events, such as cosmic ray bombardment, nuclear weapons test fallout and seasonal variations of naturally occurring radioisotopes. Data collected prior to station operation is used to indicate the degree of natural variation to be expected. The pre-operational data is compared with data collected during the operational phase to assist in evaluating any radiological impact of station operation. Occasionally samples of environmental media show the presence of man-made isotopes. As a method of referencing the measured radionuclide concentrations in the sample media to a dose consequence to man, the data is compared to the reporting level concentrations listed in North Anna's ODCM. These concentrations are based upon the annual dose commitment recommended by 10CFR50, Appendix I, to meet the criterion of "As Low As Is Reasonably Achievable". This report documents the results of the Radiological Environmental Monitoring Program for 2021 and satisfies the following objectives of the program: To provide measurements of radiation and of radioactive materials in those exposure pathways and for those radionuclides that lead to the highest potential radiation exposure of the maximum exposed member of the public resulting from station operations. To supplement the radiological effluent monitoring program by verifying that radioactive effluents are within allowable limits. To identify changes in radioactivity in the environment. 6
To verify that station operations have no detrimental effect on the health and safety of the public. 2.2 Sampling and Analysis Program Table 2-1 summarizes the 2021 sampling program for North Anna Power Station. All samples listed in Table 2-1 are taken at indicator locations except those labeled 11 control. 11 The North Anna Radiological Monitoring Locations maps denote sample locations for North Anna Power Station. The locations are color coded to designate sample types. Table 2-2 summarizes the analysis program conducted by TBE for North Anna Power Station during the year 2021. 7
TABLE 2-1 North Anna Power Station- 2021 RADIOLOGICAL SAMPLING STATION DISTANCE AND DIRECTION FROM UNIT NO. 1 Collection Sample Media Location Station Distance Direction Degrees Frequency Remarks Environmental NAPS Sewage Treatment Plant 01 0.20 NE 42° Quarterly & Annually Dosimetry (TLD) Fredericks Hall 02 5.30 SSW 203° Quarterly & Annually Mineral, Va 03 7.10 WSW 243° Quarterly & Annually Wares Crossroads 04 5.10 WNW 287° Quarterly & Annually Route 752 05 4.20 NNE 20° Quarterly & Annually Sturgeon's Creek Marina 05A 2.04 N 110 Quarterly & Annually Levy, VA 06 4.70 ESE 115° Quarterly & Annually Bumpass, VA 07 7.30 SSE 167° Quarterly & Annually End of Route 685 21 1.00 WNW 301° Quarterly & Annually Route 700 22 1.00 WSW 242° Quarterly & Annually "Aspen Hills" 23 0.93 SSE 158° Quarterly & Annually Orange, VA 24 22.00 NW 325° Quarterly & Annually Control Bearing Cooling Tower N-1/33 0.06 N 100 Quarterly Sturgeon's Creek Marina N-2/34 2.04 N 110 Quarterly Parking Lot "C" (on-site) NNE-3/35 0.24 NNE 32° Quarterly Good Hope Church NNE-4/36 3.77 NNE 25° Quarterly Parking Lot "B" NE-5/37 0.20 NE 42° Quarterly Lake Anna Marina (Bogg's Dr) NE-6/38 1.46 NE 34° Quarterly Weather Tower Fence ENE-7/39 0.36 ENE 74° Quarterly Route 689 ENE-8/40 2.43 ENE 65° Quarterly Near Training Facility E-9/41 0.30 E 91° Quarterly "Morning Glory Hill" E-10/42 2.85 E 93° Quarterly Island Dike ESE-11/43 0.12 ESE 103° Quarterly Route 622 ESE-12/44 4.70 ESE 115° Quarterly DVP Biology Lab SE-13/45 0.64 SE 1380 Quarterly Route 701 (Dam Entrance) SE-14/46 5.88 SE 137° Quarterly "Aspen Hills" SSE-15/47 0.93 SSE 158° Quarterly Elk Creek SSE-16/48 2.33 SSE 165° Quarterly NAPS Access Rd. S-17/49 0.36 s 173° Quarterly 8
TABLE 2-1 North Anna Power Station - 2021 RADIOLOGICAL SAMPLING STATION DISTANCE AND DIRECTION FROM UNIT NO. 1 Collection Sample Media Location Station Distance Direction Degrees Frequency Remarks Environmental Elk Creek Church S-18/50 1.55 s 178° Quarterly
'l'hcrmoluminesccnt NAPS Access Rd. SSW-19/51 0.24 SSW 197° Quarterly Dosimetry (TLl)) Route 618 SSW-20/52 5.30 SSW 205° Quarterly 500kvTower SW-21/53 0.60 SW 218° Quarterly Route 700 SW-22/54 3.96 SW 232° Quarterly NAPS SE Switchyard WSW-23/55 0.38 WSW 237° Quarterly
)klO Route 700 (Exclusion Boundary) WSW-24/56 1.00 WSW .....,""fL., Quarterly South Gate Switchyard W-25/57 0.32 w 279° Quarterly Route 685 W-26/58 1.55 w 274° Qumierly End of Route 685 WNW-27/59 1.00 \VNW 301 ° Quarterly Route 685 WNW-28/60 1.40 \VNW 303° Quarterly North Gate - Laydown Area NW-29/61 0.52 NW 321° Quarterly l,akc Anna Campground NW-30/<;2 2.54 i\W 319" Quarterlv
#1/#2 Intake NNW-31/63 0.07 l\NW ::149° Quarterly Route 208 NNW-32/64 2.21 NNW 344° Quarterly Bumpass Post Office C-1/2 7.30 SSE 167° Quarterly Orange, VA C-3/4 22.00 NW 325° Quarterly Control Mineral, VA C-516 7.10 WSW 243° Quarterly L,ouisa, VA C-7/8 11.54 WSW 257c Quarterly Control Airborne Particulate NAPS Sewage Treatment Plant 01 0.20 Nt 42° Weekly and Radioiodine Biology Lab OlA 0.64 SE 138° Weekly Fredericks Hall 02 5.30 SSW 203° Weekly Mineral, VA 03 7.10 WSW 243° Weekly Wares Crossroads 04 5.10 WNW 287° Weekly Route 752 05 4.20 NNE 20° Weekly Sturgeon's Creek Marina 05A 2.04 N no Weekly Levy, VA 06 4.70 ESE 115° Weekly Bumpass, VA 07 7.30 SSE 167° Weekly 9
TABLE 2-1 North Anna Power Station - 2021 RADIOLOGICAL SAMPLING STATION DISTANCE AND DIRECTION FROM UNIT NO. 1 Collection Sample Media Location Station Distance Direction Degrees Frequency Remarks Airborne Particulate End of Route 685 21 1.00 WNW 301° Weekly and Radioiodine Route 700 22 1.00 WSW 242° Weekly "Aspen Hills" 23 0.93 SSE 158° Weekly Orange, VA 24 22.00 NW 325° Weekly Control Surface Water Waste Heat Treatment Facility 08 3.37 SSE 148° Monthly (Second Cooling Lagoon) Lake Anna (upstream) 09A 12.90 WNW 295° Monthly Control (Route 669 Bridge) River Water North Anna River (downstream) 11 5.80 SE 128° Monthly Ground Water Biology Lab 0lA 0.64 SE 1380 Quarterly (Well Water) Precipitation Biology Lab 0lA 0.64 SE 1380 Monthly Aquatic Sediment Waste Heat Treatment Facility 08 3.37 SSE 148° Semi-Annually (Second Cooling Lagoon) Lake Anna (upstream) 09A 12.90 WNW 295° Semi-Annually Control (Route 669 Bridge) North Anna River (downstream) 11 5.80 SE 128° Semi-Annually Shoreline Soil Waste Heat Treatment Facility 08 3.37 SSE 148° Semi-Annually (Second Cooling Lagoon) Soil NAPS Sewage Treatment Plant 01 0.20 NE 42° Once/3 years Fredericks Hall 02 5.30 SSW 203° Once/3 years Mineral, VA 03 7.10 WSW 243° Once/3 years Wares Crossroads 04 5.10 WNW 287° Once/3 years Soil Route 752 05 4.20 NNE 20° Once/3 years Sturgeon's Creek Marina 05A 2.04 N 11° Once/3 years Levy, VA 06 4.70 ESE 115° Once/3 years
TABLE 2-1 North Anna Power Station - 2021 RADIOLOGICAL SAMPLING STATION DISTANCE AND DIRECTION FROM UNIT NO. 1 Collection Sample Media Location Station Distance Direction Degrees Frequency Remarks Bumpass, VA 07 7.30 SSE 167° Once/3 years End of Route 685 21 1.00 WNW 301° Once/3 years Route 700 (Exclusion Boundary) 22 1.00 WSW 242° Once/3 years "Aspen Hills" 23 0.93 SSE 158° Once/3 years Orange, VA 24 22.00 NW 325° Once/3 years Control Fish Waste Heat Treatment Facility 08 3.37 SSE 148° Semi-Annually (Second Cooling Lagoon) Lake Orange 25 16.5 NW 312° Semi-Annually Control Food Products (Vegetation) Stagecoach Road 14B 1.22 NNE 40° Monthly if available or at harvest Route 614 15 1.37 SE 133° Monthly if available or at harvest Route 629/522 16 12.60 NW 314° Monthly if available or at harvest Control Aspen Hills 23 0.93 SSE 158° Monthly if available or at harvest "Historic Lane" 26 1.15 s 172 ° Monthly if available or at harvest 11
TABLE 2-2 North Anna Power Station SAMPLE ANALYSIS PROGRAM SAMPLE MEDIA FREQUENCY ANALYSIS LLD REPORT UNITS Thermoluminescent Dosimetry (TLD) (84 TLDs) Quarterly Gamma Dose 2mR+/-2mR mR/std. Month (12 TLDs) Annually Gamma Dose 2mR+/-2mR mR/std. Month Airborne Radioiodine Weekly I-131 0.07 pCi/m3 Airborne Particulate Weekly Gross Beta O.Gl pCi/m3 Quarterly (a) Gamma Isotopic pCi/m3 Cs-134 0.05 Cs-137 0.06 2nd Quarter Sr-89 (b) pCi/m3 Composite Sr-90 (b) Surface Water Monthly 1-131 l(c) pCi/L Gamma Isotopic pCi/L Mn-54 15 , Fe-59 30 Co-58 15 Co-60 15 Zn-65 30 Zr-95 30 Nb-95 15 Cs-134 15 Cs-137 18 Ba-140 60 La-140 15 Quarterly(a) Tritium (H-3) 2000 pCi/L 2nd Quarter Sr-89 (b) pCi/L Composite Sr-90 (b) River Water Monthly I-131 l(c) pCi/L Gamma Isotopic pCi/L Mn-54 15 Fe-59 30 Co-58 15 Co-60 15 Zn-65 30 Zr-95 30 Nb-95 15 Cs-134 15 Cs-137 18 Ba-140 60 La-140 15
- LLDs indicate those levels to which environmental samples are required to be analyzed. Actual analysis of samples may be lower than the listed values.
(a) Quarterly composite of each location's samples are used for the required analysis (b) There are no required LLDs for Sr-89/90 (c) LLD for non-drinking water is 10 pCi/liter (d) LLD applied are those for water samples. However, since this is a semi-annual composite no LLD is applied for these nuclides due to their short half-lives. 12
TABLE 2-2 North Anna Power Station SAMPLE ANALYSIS PROGRAM SAMf!,E MEDIA FREQUEN~l:: ANALYSIS LLD REPORT UfilTS River Water Quarterly(a) Tritium (H-3) 2000 pCi/L 2nd Quarter Sr-89 (b) pCi/L Composite Sr-90 (b) Ground Water Quarterly Gamma Isotopic pCi/L (Well Water) Mn-54 15 Fe-59 30 Co-58 15 Co-60 15 Zn-65 30 Zr-95 30 Nb-95 15 I-131 l0(c) Cs-134 15 Cs-137 18 Ba-140 60 La-140 15 Quarterly(a) Tritium (H-3) 2000 pCi/L 2nd Quarter Sr-89 (b) pCi/L Sr-90 (b) Aquatic Sediment Semi-Annually Gamma Isotopic pCi/kg (dry) Cs-134 150 Cs-137 180 Annually Sr-89 (b) pCi/kg (dry) Sr-90 (b) Precipitation Monthly Gross Beta 4 pCi/L Semi-Annual Gamma Isotopic pCi/L Composite Mn-54 15 Fe-59 30 Co-58 15 Co-60 15 Zn-65 30 Zr-95 30 Nb-95 15 I-131 (d) Cs-134 15 Cs-137 18 Ba-140 (d) La-140 (d) Shoreline Soil Semi-Annually Gamma Isotopic pCi/kg (dry) Cs-134 150 Cs-137 180 Annually Sr-89 (b) pCi/kg (dry) Sr-90 (b)
- LLDs indicate those levels to which environmental samples are required to be analyzed. Actual analysis of samples may be lower than the listed values.
(a) Quarterly composite of each location's samples are used for the required analysis (b) There are no required LLDs for Sr-89/90 (c) LLD for non-drinking water is 10 pCi/liter (d) LLD applied are those for water samples. However, since this is a semi-annual composite no LLD is applied for these nuclides due to their short half-lives. 13
TABLE2-2 North Anna Power Station SAMPLE ANALYSIS PROGRAM SAMPLE MEDIA FREQUENCY ANALYSIS LLD REPORT UNITS Soil Once per 3 years Gamma Isotopic pCi/kg (dry) Cs-134 150 Cs-137 180 Sr-89 (b) pCi/kg ( dry) Sr-90 (b) Milk Monthly, if I-131 1 pCi/L available Monthly, if Gamma Isotopic available Cs-134 15 Cs-137 18 Ba-140 60 La-140 15 Quarterly Sr-89 (b) pCi/L Sr-90 (b) Fish Semi-Annually Gamma Isotopic pCi/kg (wet) Mn-54 130 Fe-59 260 Co-58 130 Co-60 130 Zn-65 260 Cs-134 130 Cs-137 150 Food Products Monthly, if Gamma Isotopic pCi/kg (wet) (Broadleaf available, or Cs-134 60 Vegetation) at harvest Cs-137 80 I-131 60
- LLDs indicate those levels to which environmental samples are required to be analyzed. Actual analysis of samples may be lower than the listed values.
(a) Quarterly composite of each location's samples are used for the required analysis (b) There are no required LLDs for Sr-89/90 (c) LLD for non-drinking water is 10 pCi/liter (d) LLD applied are those for water samples. However, since this is a semi-annual composite no LLD is applied for these nuclides due to their short half-lives. 14
Legend For The North Anna Power Station Environmental Monitoring Stations Overview Maps Map Environmental Station Map Environmental Station Designation Identification Designation Identification 1 (a) 01,NE-5/37 7/8 C-7/8 IA 0lA,SE-13/45 1/33 N-1/33 2 (a) 02,SSW-20/52 31/63 NNW-31/63 3 (a) 03,C-5/6 29/61 NW-29/61 4 (a) 04 3/35 NNE-3/35 5 (a) 05 7/39 ENE-7/39 5A (a) 05A,N-2/34 9/41 E-9/41 6 (a) 06,ESE-12/44 11/43 ESE-11/43 7 (a) 07, C-1/2 17/49 S-17/49 8 08-Water, Fish, Sediment, 19/51 SSW-19/51 Shoreline Soil 21/53 SW-21/53 9A 09A-Water sample, Sediment 23/55 WSW-23/55 11 11-River Water, Sediment 14B 14B-Vegetation 16/48 SSE-16/48 15 15-Vegetation 14/46 SE-14/46 16 16-Vegetation 22/54 SW-22/54 21 (a) 21,WNW-27/59 26/58 W-26/58 22 (a) 22,WSW-24/56 28/60 WNW-28/60 23 (a) 23-SSE-15/47,Vegetation 32/64 NNW-32/64 24 (a)(b) 24,C-3/4 8/40 ENE-8/40 25 (c) 25-Fish 4/36 NNE-4/36 26 26-Vegetation 10/42 E-10/42 (a) Indicates air sample station, annual and quarterly TLD, Triennial soil. (b) In Orange (c) In Lake Orange 15
SSW Legen d
- Fi @d E *ron ntal Mo
- oring S alio D locations ""
Scale
- 318 inch = 235 ft.
Figure 1. North Anna Site Radiological Monitoring Locations 16
TSYLVAIIIA l MAS1 CORI N A?
~~
e North Anna Environmental Map Fixed Environmental Sampling Location
- TLD Sampling
- Garden Residents e Meat Animals inal O 1991 by ADC of Alexandria, Inc.. S.UO General Green Way, VA22312. USED WITH PERMISSION. No ollw reproduc1ion en permission of AOC.
17
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. .~} :* ..*=:::::Rf.c
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North Anna Environmental Map
- Fixed Environmental Sampling Location
- TLD Sampling
- Garden Residents e Meat Animals Original C 1991 by AOC ol AleXanci"ia, Inc., 6440 Gener.al Green WlfY, Alexandrit, VA 22312. USED WITH PERMISSION. No Olher reproduction may be made without the wrltan pennission of ADC.
18
North Anna Environmental Map e Fixed Environmental Sampling Location
- TLD Sampling
- Garden Residents e Meat Animals Original C 1991 by AOC of Alexandria, Inc., 6440 General Green w~.
Alexandria, VA 22S12. USED WITH PERMISSION. No other r.production may be made wtthout the written permission of ADC. Cl33281E 19
llDRE lOSSI North Anna Environmental Map
- Fixed Environmental Sampling Location
- TLD Sampling
- Garden Residents
- Meat Animals Orig~ C i 991 by ADC of Alllxandria. Inc., 6440 General Green Way, Alexandria, VA 22312. USED WITH PEflMJSSION. No other reproduction may be made without the wnnen permission of AOC.
CB3283D 20
- 3. ANALYTICAL RESULTS 3.1 Summary ofResults In accordance with the North Anna Offsite Dose Calculation Manual (ODCM), a summary table of the analytical results has been prepared and is presented in Table 3-1. This data is presented in accordance with the format of the USNRC Branch Technical Position, "Acceptable Radiological Environmental Monitoring Program", Rev. 1, November 1979. The LLD listed value is taken from the ODCM. For radioanalytic analyses, the values listed in the columns indicated as "Mean/Range" include any results above the Minimum Detectable Concentration, MDC. Results are considered true positives when the measured value exceeds both the MDC and the 2E error. For TLDs the mean and range include all values.
A more detailed analysis of the data is given in Section 4 where a discussion of the variations in the data explains many aspects that are not evident in the Summary Table because of the basic limitation of data summaries. 21
RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Page 1 of 8 RAOJOLOCIAl ENVIRONMENT MONl'fORING PROGRAM
SUMMARY
NORTH ANNA NUCLEAR POWER S'fATION, LOUISA COUNlY, VIRGINIA 2021 Docket No. 50-338/339 2021 Medium or lrrs:ficator Indicator Control Non-Routlne Pathway Analysis Tolal LLD* Locations Location with H!Qhe"St Mean Locations Reported Sampled Type Number Distance Mean Measu:tement I Mean Mean (Units) (Ran!fe) Numberl Diroclion (Range) (Range) D1roct Radiation Gamma 255 2 3.7 (256J'256} 29.'61 0.52M1. 6.4 {B/8} 3.1 {Hl/16) [I (mR.sld. Month) Dose (1.0-8.0) NW (4.7-8.0) (1.7-5.0) (SeelorTLDs}
.. C3/4, -7/8 used for control !oca!lons Direct RadiatiDn Gamma 32 2 2.4 (16.116) C-7/8 11.54 Mi. 3.5 {Bi'8) 3.1 (Hl/16} 0 (mR.std. Month) Dose (1.3-3.3) WSW (2.3-5.0) (1.7-5.0)
(Pre-apero.tiona! 1Ws)
.. C3/4, -7/8 used for ccntro! /oca.1/ons Direct Radiation Gamma ,m 2 4.3 (4011'40) IEIPSP 0.37 Mi. 6.3 (B.18) 3.1 {16,116) [}
(mR.sld. Mo,?lh) Dose (2..3-8.0) 9/10 IENE {4.3-8.0) (1.7-5.0) (Emo.rgancy Slle!or TLDs)
** C3/4, -7/8 used for C(Jfltro/ Joca.1/ons Direct Radiation Gamma 4E! 2 3.0 (44.144) STA-23 0.93Mi. 4.2 {4/4), 2.9 (4l4) 0 (mR.std. Month) Dose (U-5.0) SSE {3.3-5) (2.3-4.0)
(Ertvlronmantel TLDs) Direct Radiation Gamma 12 2 1.6 (11111) STA- 0.2 Mi.NE/ 2.5{1/1} ,.5 (1,'1) [I (mR.std. Month) Dose (0.8-2.5) 01123 0.93Mi. SSE {2.5) (1.5) (Artnual TLDs) Afr Particulate GR-B 676 D.01 16.3 {62*t.'624) 01 020ML 17.9 (52/52) 17.4 (52152) 0 (1 Go *3 pCilm 3 ) (5.5-33.6) NE (S.5-29.1) (8.1-30.2) GAMMA 52 IBE-7 52 1 a.B.9 {48t48) 22 1.00 ML 1462(4/.i) 137.9 (4l4) D (102.9-1163.9} WSW (120.9-163~9) (127 .3-145.7) C:ii--134 :52 Ol05 (lll4B) N/A NIA NtA (014) 0 Cs--137 52 1106 (ll/4B) NIA NIA NIA (0/4} [I Sr..Jl9 52 0.01 (0/48) N.IA NIA NlA (0.1'4) D Sr-90 52 0.01 (01'48) NIA NIA NIA (0!4) D Air locline 1-131 676 0.07 (Cl/624) NIA NIA NIA (0/52) D (10e..3 pC/lm 3 )
- LLD identifed in ODCM 0 C-S/4,-7/8 used as oontrol lotations 22
RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Page 2 of 8 RAOJOLOCIAL ENVIRONMENT MONITORING PROGRAM
SUMMARY
NORrH AtiNA NUCLEAR POWER STATION, LOUISA COUNiY, VIRGJNIA 2021 Docket No. 50-33.81339 2021 Medrumor Indicator indicator Control Non-Rouline Pathway AnaJ~*sls Tolal LLD" Locations LocaLlon v.rith Hi1+hest Me.an Localions Reported Sampled (Units) son-** Type GAMJ,'!A Nwnb!II' 0 Mean (Range} Number I Distance Direction I Mean (Range) Mean (Ra119e} Measwement (pCilkg dty wt.) K-40 0 NIA NIA N!A INlA NIA D CS-134 0 150 NIA NIA NfA N/A NIA 0 CS-137 0 180 NIA NIA NlA NlA NIA D Ra-226 0 NIA NJA NtA NtA NIA 0 Th-22B 0 NIA NIA NIA N/A NIA 0 Th-.232 0 NIA NJA NlA NtA NIA 0 St..S!li 0 NIA NIA t-J/'A N,1A 1-4/A 0 sr~Ql]i 0 NIA NIA WA INlA Nl/A 0
...,Soll :samples are obtained triennialiPJ.
Precipitation GR-B 10 4 4.7(10/10) 01A 0.64Mi. 4.7(10.ml) NIA 0 (pCiAVUir) (1.7-8.B} SE (1.7-8.6) l-t-3 11 2oao (0/11) N/A t-UA NiA 0 GA.MJ,l!A 2 Be-7 2 (0/2) NIA N."A INlA IN/A 0 Mn-54 2 15 (012) NIA NIA IN/A INtA 0 Fo-5!li 2 30 (0/2) NIA NfA INtA NIA 0 CC>-58 2 15 (012} N/A NIA NlA NIA 0 CC>-60 2 15 (012) NIA NtA IN/A NlA 0
- LLD identifecl in ODCM 23
RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Page 3 of 8 RAOlOLOCIAL ENVIRONMENT MONITORING PROGRAM
SUMMARY
NORTH ANNA NUCLEAR POWER STATION, LOUISA COUNTY, VIRGINIA 2021 Docket No. 50-33B/339 2021 Mooi'1.lm or ltr.dicalor lnciicator Control Non-Rouline Pathway Analysis To!al LLD* Loc:al.lcos Location with Hinh~t Mean Loc:.ations Reported Maasura.ment Sampled (Un1ts} Prec,pltatlon (cont'd) Type Zn-65 NU!l'iber 2 3D Mean {Range} (012) Dis!!ance Nll.lmb!li'I Dlreciion IN/A I Mean (Range) NIA Mean (Range) NIA 0 (pCi/N!etJ Zr-95 2 30 (Q/2) NIA NfA NIA. NIA. 0 Nb-95 2 15 (012) IN.IA NIA. NIA NIA 0 Cs-134 2 15 (0/2.1 N.IA N.rA NIA NIA 0 Cs-137 2 18 (0.12) N.l'A N.rA IN/A. IN/A 0 Ba-140 2 60 (1112) N!A N,1A NIA NfA 0 la-1+'l0 2 15 (012) N.IA N,fA IN/A NIA 0 1-131 2 10 (1112.1 IN):.\ NIA NIA N/A 0 Th-228 2 (0/2) NiA NfA NIA NIA 0 Fruits & Vegetables GAMMA 35 (pCilkg 1\*!13 wl.) Be-7 35 14t0 (21Y28) 148 1.22 Mi. 1M4{7J7) 1714 (6l7} 0 (346.3-284) NNE (346.3-2804) (220.9-2961) K-40 35 5117 (28128) 115 1.3H.li. 6267 (7ll) 6260 (717) 0 (2132-921 BJ SIE (4198-9218) (3063-12.940) 1-131 35 60 (0128) IN.IA NtA NIA (On) 0 Cs-134 35 60 (0128) N./A NlA N'tA (D/7) 0 Cs-137 35 BO (0/28} NlA N.rA NIA {017) 0
- LLD identifecl in ODCM 24
RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Page4of8 RADIOLOCIAL ENVIRONMENT MONITORING PROGRAM
SUMMARY
NORTH ANNA NUCLEAR POWER STATION, LOUISA COUNTY, VIRGINIA2021 Docket Nb. 60-338r.!39 2021 Medfumor lndlcatct lnl'flcalor Conlrell Non-Routine Pathway Analysis Total i.LO" 1.0caUcns Location with Hlchool Mean Locafons Reported Sampled Type Number Mean Distance P.tean Mean Mea11u1ament (Units) Fruits & Vegetables Th-228 35 (Rimga) 89.57 (!6.'2B} Number! Oltaction 23 D.93M1. I {Range) 140.7 (617) (Range} 8!UI (317} 0 (cont'd) (pCilk.g wet 1?f.) (32.39-198.4) SSE (52.96-198.4) (66.78-111.6) n.~ 35 236.0 (2128) 23 0.93MI. 236.0 (217) (IJ7) 0 (220.8-251.1) SSE (220..8-261.1) Well Water H-3 4 2000 {Ol4) N!A NIA NIA WA 0 (pCi/fiterJ GAMMA 4 Mn-54 4 15 (Ql4) H/A NIA NIA NIA 0 Fe.:S9 4 3D (0/4f WA NIA NIA NIA D Co-58 4 15 (Qt4J N.tA NIA NIA NIA 0 Co-00 4 1.'i (0/4) NIA NIA NIA 0 4 311 (Qf4) NIA NIA NIA NIA 0 4 30 t0i4) NIA NIA N/A NIA I) Nb-95 4 15 (114) NIA NIA NIA NIA 0 1-131 4 10 lOl'J NIA NIA NIA NIA Cs-134 4 15 (G/4) NJA N/A NIA NIA 0 Cs-'137 4 18 {!lJ/4) NIA NIA NIA NIA 0 Ba-140 4 00 (0/4) NIA NIA NIA NIA 0 La-140 4 15 (0/4) NIA NIA NIA NIA D
- LLD ldentlfed in ODCM 25
RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Page 5 of8 RADJOLOCIAL ENVIRONMENT MONITORING PROGRAM
SUMMARY
NORTH ANNA NUCLEAR POWER STATION, LOUISA COUNTY, VIRGINIA2021 Docket No. 50-338/339 20 21 Medium or Indicator lndica\or Control Non-Routine Pathway Anal:,osis Tolal uo* LocaUons Location with Hi hest Mean Locations Reported Sampled Type Number Mean Dls!ance Mean Me.an Measurement (Unlts) (Range) Number Direction (Range) (Range) Well Water (cont'dJ Sr-69 1 - (0/1) NIA NIA NIA NIA 0 (pCilliter) Sr-90 1 - (0/1) NIA NIA NIA NIA D River Water H-3 4 200 2610 (4/4) 11 5.80.ML 2610 {4/4) N/A 0 (pCiJliter) (1580-4030) SE (1580-4030) GAMl,tA 12 Mn-54 '12 15 (0/12) NIA NIA NlA NIA 0 Fe-59 12 3 (0/12) NIA NIA NiA NlA 0 Co-58 12 15 (0/12) NIA NIA NIA NtA 0 Co-00 12 15 (0112) NIA NIA NtA NlA D Zn-65 12 30 (0/12) NIA NIA NIA NtA 0 Zr-95 12 3,0 (0/12) NIA NIA NtA NIA D Nb-85 12 15 (0/12} N.IA NIA NiA N/A 0 E-t31 12 1 (0/12) NIA NIA NtA NIA 0 Cs-134 12 15 (0/12} N.IA N/A NfA NlA 0 Cs--137 12 18 (0/12) N/A NtA NIA 0 Ba-140 12 6[) (0/12) NIA NIA NtA NIA 0 La-140 12 15 (Q/12) N/A NIA NIA NIA D
- LLD identifed in ODCM 26
RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM SUJ111t/ARY Page 6 of 8 P.AOIOLOCiAL ENVIRONMENT MONITORING PROGR.!\M
SUMMARY
NORTH ANNA NUCLEAR POWER STATlON. LOUISA. COUNTY. VIRGlNIA. 2021 Docket No. 50-338/339 2021 Mt1<llurn or Indicator lm!lca\or Con!rnl Non-Roulin0 Pallvua1 Anat,,sb Total LLD* Locaticns uJc;.ilion with Hii:thest Mc.ar1 Loailior,s RopDrtod Number MLmn Msasure:nent Sampled (Units) River'!Nat~r (cont'd) Type Sr-89 Mean (Range) (011) NIA Di~lattr...e Numberl Direcfa:,n I Mean (Range} (Range} N/A D (pC/INUu) Sr-90 (0/1) N/A MA N.'A NIA [) Surface, Water H-3 8 2000 2658 (4/4) OB 3.37 Mi. 2658 (4/4} {014) 0 (pC/11/!er) (2110-3570} SSE (2110-357D] GAMMA 24 Mn-54 24 15 (0112) N.IA NIA NlA (0/12) Fe-59 24 30 (Ol-l2) IN.IA NIA N/A (0112) 0 Co-58 24 15 {0112) IN.IA NIA NIA (0/12) Co-50 24 15 (0112) IN/A N.'A N/µ, (0112) D Zn-65 24 30 (0112) NlA. NiA NlA (0/12) 0 Zr:-95 24 :rn (Ort2) WA NiA N/A {0/12) () Nb-95 24 30 (IJ/12) NIA NlA NIA (0J-12) 0
!-131 24 (0/12) IN.IA NlA NIA (0112) ()
Cs-134 24 15 (1Jn2) NfA NfA NfA (0112) 0 Cs-137 24 18 (0/12) NIA NiA N/A (0112) 0 Ba-140 24 60 {0112) WA N.'A NIA (0112) 0 1.a-140 24 15 (llt12) N.IA NIA NIA (0/12) D + LLD identifed in OOCM 27
RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Page 7 of 8 RADJOLOCIAL ENVIRONMENT MO.'\IITORING PROGRAM
SUMMARY
NORTH ANNA NUCLEAR !POWER STATlON, LOUISA COUNTY, VIRGJNIA 2021 Dockal No. 50-338'339 2021 Meclfum or Indicator Indicator Conlrol Non-Routine Pathway Analysis Total LLD* Locatioos Location with Hiahesl Mean locations Reported Number Mean Distance Mean Mean Measurement Sampled (Units) Surface Water (cont'd) Type 2 (Range} (011) Number! Direcllon NIA NIA I (Range) NIA (Range) {0!1) 0 (pCi.tllter) Sr-90 2 (0/1) NIA NIA NIA (011) [) Sediment Silt GAMMA 6 (pCilkg dry wt.) K-40 6 10642(4,14) 11 5.80MI. 19500 (2/2) 14280 (212) [) ("1537-19930) SE (19D70-'19930) {13300-15260) Cs-134 6 15i!l (0/4j NJA NfA NlA (012) 0 Cs-137 6 11Ml [0/4) NIA NIA NIA (0!2) [) Ra-226 6 2008 (1/4.) 11 5.80Mi. 2568 (112) (012) 0 (2561!} SE (2568} Th-228 6 7572{3.t4) n 5.80ML 1091 {2/2) 208.3 (2/2) 0 {89.72-1373) SE (809-1373) (198.1-218.4) Th-232 6 1.256 {2/4) 11 5.80Mi. 1256 {212) (0!2) [l (824.3-1687] SE {824.3-1687) Sr--89 3 {0/2j N.IA NIA WA (011) 0 {Arnwalll'} Sr-90 3 (Oi'2) NIA NIA NIA (011) [l (Annually} Shoreline Soil GAMMA 2 (pCi.tkg dty ,vt.) K-40 2 1388 (112) OB 3.37Mi. 1388 (112) NiA [l (1388j SSE (1388) Cs-134 2 150 (ill2} NIA NIA NIA NIA 0 Cs-137 2 rn (Q/2] NtA NIA NIA NIA Ra-226 2 873.6 (112) OB 3.37Mi. 873.6(112) NA 0 (S73.6) SSE (873.6) Th-22B 2 79.56 (112) OB 3.37MI. 79.56 (1.12) NA 0 (79.56) SSE (79.56)
- LLD identifed in ODCM 28
RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Page 8 of8 RADIOLOCIAt E~MRONMENT MONITORING PROGRAM
SUMMARY
NORTH ANNA NUCLEAR POWER STATION, LOUISA COUNTY, VIRGINIA 2021 Docket No. 50-338/339 2021 Medium or Indicator Indicator Conltol Non-Routine Pathway Analy:1.ls iotal LLD* Locallom; Location with Hiahesl Mean Locsll!lns Reported Sampled (Units) Shoreline 8011 (conrd) Type Th"'232 Number 2 Mean (Range} (0/2j Number NIA I Distance Dlrecllon NIA I Mean (Range) NtA Me,an (Range) Measurement 0 (pCifkg dry wt.) Sr-89 1 (D/1) NIA NIA NtA N.IA D {Annually} Sr-90 1 (0/1) NIA NIA NIA N.IA D (Annually} Fish-Other GAMMA 8 (pCi/kg wet v,'l.) K-40 a 1351 (4/4) OB 3.37 ML 1361 {4/4} 920.3 (414) 0 (1044-1704} SSE {1044-1704) (331.9-1436) Mn-54 8 130 (0/4) NIA NIA WA (0/4) 0 Fe-59 8 260 (0/4) NIA NIA NtA (014) D Co-58 8 130 (0/4) N.IA NIA NtA (014) 0 Co-00 8 130 (0/4) NIA NIA WA (0!4) 0 zn.65 a 260 (0/4} NIA NIA WA (0!'4} 0 C&-134 a 130 (0/4) NIA NIA NtA (G.14) D Cs-137 8 15il (0/4) NIA NIA NtA. (014) 0
- LLD iclentifed in ODCM 29
3.2 Analytical Results of 2021 REMP Samples Radiological analyses of environmental media characteristically approach and frequently fall below the detection limits of state-of-the-art measurement methods. The data reported in the following tables are strictly counting statistics. The reported error is two times the standard deviation (2a) of the net activity. Unless otherwise noted, the overall error (counting, sample size, chemistry, errors, etc.) is estimated to be 2 to 5 times that listed. Results are considered true positives when the measured value exceeds both the :rv.IDC and the 2E error. Because of counting statistics, negative values, zeros and numbers below the Minimum Detectable Level (:rv.IDL) are statistically valid pieces of data 1* For clarity of this report only detectable results are presented. TBE's analytical methods meet the Lower Limit of Detection (LLD) requirements given in Table 2 of the USNRC Branch Technical Position, "An Acceptable Radiological Environmental Monitoring Program", (November 1979, Revision 1) and the North AnnaODCM. Data are given according to sample type as indicated below.
- 1. Gamma Exposure Rate
- 2. Air Particulates, Gross Beta Radioactivity
- 3. Air Particulates, Weekly I-131
- 4. Air Particulates, Quantitative Gamma Spectra
- 5. Air Particulate Strontium
- 6. Soil
- 7. Precipitation
- 8. Cow Mille
- 9. Food Products and Vegetation
- 10. Well Water
- 11. River Water
- 12. Surface Water
- 13. Bottom Sediment/Silt
- 14. Shoreline Soil
- 15. Fish 1 Analytical results are handled as recommended by HASL (Reporting ofAnalytical Results from HASL, "letter by Leo B.
Higginbotham) and NUREG/CR-4007 (Sept. 1984). 30
TABLE3-2 QUARTERLY GAMMA EXPOSURE RATE (mR/Std. Mon2h) !!: 2 Sigma Rrst Quarter Second Quarter Third Quarter Fourth Quarter 12/29/2020- 3/31/2021- 6/29/2021- 9/28/2021- Quarterly Average* 1*----****........ _____t~tE~.:!?.:_____, Station N-1 3/31/2021 5.3 6/29/2021
-------4_7 _______ 9/28/2021 4.3 ---------- ------*
12!28/2021 3.3 4.5 (+/-) 1.7 N-33 5.7 4.7 4.3 3.3 N-2 3.0 2.7 2.3 2.0 2.5 {+/*) 0.9 N-34 3.0 2.7 2.3 1.7 NNE-3 6.3 5.3 5.0 3.3 5.0 (+/-) 2.4 NNE-35 6.7 5.3 4.3 3.7 NNE-4 4.7 4.0 3.3 2.7 3.7 (+/-) 1.6 NNE-36 4.7 4.0 3.0 3.0 NE..S 5.0 4.0 4.0 2.7 3.9 {+/-) 1.8 NE-37 5.0 4.3 3.7 2.7 NE-6 3.7 3.3 2.7 2.0 2.9 (+/-) 1.2 NE-38 3.3 3.3 2.7 2.3 ENE-7 6.0 5.3 4.7 3.0 4.7 (+/-) 2.1 ENE-39 5.7 5.0 4.0 3.7 ENE-8 23 2.3 f.O 1.3 1.8 (+/-) 1.0 ENE-40 23 2.3 1.7 1.3 E.-9 6.0 4.7 4.3 3.0 4.4 (+/-) 1.9 E-41 5.3 4.3 4.3 3.3 E-10 4.3 4.3 4.3 2.7 3.5 (+/-) 1.6 E-42 4.0 3.3 3.0 2.3 ESE-11 5.0 4.0 4.7 3.3 4.1 {+/-) 1.4 ESE-43 4.7 4.0 4.3 3.0 ESE-12 4.7 4.3 4.3 3.0 4.0 (+/-) 1.5 ESE-44 4.0 4.7 4.3 2.7 SE-13 5.3 3.0 3.7 2.7 3.8 (+/-) 1.9 SE-45 4.3 4.3 4.0 2.7 SE-14 6.1 6.0 5.7 4.3 5.7 (+/-:) 2.4 SE-46 7.7 6.0 5.3 4.0 SSE-15 5.7 5.0 4.0 3.3 4.5 (+/-) 2.0 SSE-47 5.7 4.7 5.0 3.0 SSE-16 3.3 3.0 2.0 2.3 2.5 (+/-) 1.4 SSE-48 3.3 3.0 1.7 1.7 S-17 5.3 3.7 3.7 3.3 4.2 (+/-) 1.8 S-49 5.7 4.7 4.0 3.3 "Average of coUocated TLDs 31
TABLE3-2 QUARTERLY GAMMA EXFlOSURE RATE (mR/Std. JvtonU1) :1: 2 SJgma First Quartor Sooond Quarter Third Quarter Fourth Quarter 12129/2020- 3131/2021- 6129/2021- 9/28/2021- Quarttlfly Average* ___J!f.:l!~.:Q;.____, Station s*~is*-* -*-*:r3--*3/31/2021 6/291.2021___
---*-2.0 ---n------**
9/28/2021 12128/2021
----*rr*-----* 2.1 (+/-) 1.3 S-50 2.7 2.0 2.0 1.3 SSW-19 7.3 8.3 5.3 4.3 5.7 (+I-) 2.4 SSW-51 7.0 5.0 5.7 4.0 SSW-20 2.3 2.3 1.7 1.7 2.1 (+/-) 1.3 SSW-52 3.3 2.3 1.7 1.3 SW-21 4.0 3.3 3.3 3.0 $.4 (+/-) 1.3 SW-53 4.3 4.0 3.0 2.3 SW-22 4.7 4.0 3.3 3.0 3.5 (+I-) 1.7 SW--54 4.7 3.0 3.3 2.3 WSW-23 5.0 6.3 4.7 3.3 4.4 (+/..) 1.B WSW-55 4.7 5.0 4.7 2.7 WSW-24 4.3 3.3 3.0 2.7 3.4 (+I-) 1.3 WSW-56 4.0 4.0 3.0 2.7 W-25 7.3 6.7 6.0 4.7 6.1 (+[-) 2.4 W-ri! 7.3 7.0 5.3 4.3 W-28 3.3 2.3 2.0 1.7 2.3 (~) 1.2 W-58 3.0 2.7 2.0 1.7 WNW-27 3.3 3.0 2.3 2.0 2.6 (+/..) 1.2 WNW-59 3.0 3.0 2.7 1.7 WNW-28 3.0 3.0 2.7 1.7 2.5 (+/~) 1.1 WNW-00 3.0 3.0 2.0 2.0 NW-29 7.7 6.7 6.3 4.7 6.4 (+I-) 2.2 NW--61 8.0 6.0 iS.3 5.3 NW--30 2.3 2.3 1.0 1.0 U (+/-) 1.4 NW-62 2.7 1.7 1.0 1.0 NNW--31 4.7 3.3 3.0 2.3 U (+/-) 1.6 NNW-63 4.3 3.3 2.7 2.7 NNW-32 3.7 3.0 2.7 2.0 3..1 (+I-) 1.7 NNW-84 4.7 3.7 2.7 2.7 Mean 3.7 (+I-) 2.'9 (a) TLO was mlsslAS and unable to be arial:;200.
- Average of collccafed TLOs 32
TABLE3-2 QUARTERLY GAMMA EXPOSURE RATE (mR/Std. Monlh) +/- 2 Slgma First Quarter Second Quarter Third Quarter Fourth Quarter 12129/2020- 3!31/2021-
- 6/29/2021- 91'28/2021- Quarterly Avmago*
____ (:{;!]_~.;!).;. ____ , c-:-r----- ------:ra------* Station 3/3112021 -------3.0_______ 6/2912021 9/28/2021 2.3 ------ir:i-------* 12128/2021 2.8 (+/-) 1.1 C-2 3.3 3.3 2.7 2J) C-3** 3.7 3.7 1.7 2.0 2.8 (+/-) 1.6 c-4** 3.3 3.0 3.0 2.0 C-5 2.7 2.0 1.7 1.3 1.9 (+!-) 1.0 C-6 2.3 2.3 1.3 ;_7 C-7.. 5.0 3.7 3.7 2.3 3.5 (+/-) 1.7 C-8.. 4.0 3.7 3.0 2.7 hiclllcator Me.an 2.4 (+/-) 1.3 Control Me.an 3.1 (+!-) 1.7 EPSA--01 ... 4.7 3.3 4.0 2.7 3.8 (+!-) 1.8 E.PSA-02... 5.3 4.0 3.3 3.0 EPSF-03*** 4.3 3.7 3.7 2.7 3.5 (+f-) 1.5 EPSF-04""' 4.3 4.0 3.3 2.3 EPSR-05.,, 6.0 4.3 5.0 3.3 4.8 (+/-) 1.9 EPSR-06*"* 6.0 5.0 4.7 3.7 EPSJ-or** 4.0 2.7 2.7 2.3 3.1 (+I-) 1-7 EPSJ-OStt* 4.7 3.3 2.7 2.3 EPSP-09*.. 8.0 6.7 6.0 4.3 6.3 (+/-) 2.6 EPSP-10... B.O 6.3 6.3 5.0 Moan 4.3 {+I-) 3.0 ..Average o1 coltacatoo TLOs "" Conlrol localion .,..E.morgency P!an TLDs. 33
TABLE 3-2 QUARTERLY GAMMA EXPOSURE RATE (mRIStd. Month) +/- 2 Sigma First Quarter Second Quarter Third Quarter Fourth Quarter 12/29/2020- 3/3112021- 6/29/2021- 9/28/2021- Quarterly Average* Annual Statlon STA-01 3131/2021 5.0 6[29{2021
*m***************
4.3 9/28/2021 3.3 ----------------* 12/28/2021 3.0
**** (+/-) 2 S.D.**** ,
3.9 (+/-) 1.8 TLD 2.5 STA-02 3.0 2.0 2.0 1.3 2.1 (+/-) H 0.fl STA-03 27 2.0 1.3 1.7 1.9 (+/-) 1.1 O.fl STA-04 2.3 2.7 2.0 1.3 2.1 (+/-) 1.1 1.2 STA-05 3.3 3.0 2.3 2.3 2.7 (+/-) 1.0 1.1 STA-05A 27 3.0 2.3 1.7 2.4 (+/-) 1.1 1.2 STA-06 4.7 4.7 4.0 2.7 4.0 (+/-) 1.9 2.3 STA-07 3.3 *3.0 3.0 1.7 2.8 (+/-) 1.5 1.5 STA-21 3.0 3.3 2.7 1.7 2.7 (+!-) 1.4 1.fl STA-22 4.3 4.3 3.7 3.0 3.8 (+/-) 1.3 1.9 STA-23 5.0 4.7 3.7 3.3 4.2 (+/-) 1.6 2.5 STA-24~ 4.0 3.0 2.3 2.3 2.9 (+f-J 1.6 1.5 Mean Indicator Lccations 3.0 (+/-) 2.1 1.6 (+/-) 1.3
- Average of callocated TLDs
.. Control 34
TABLE3-3 AIR PARTICULATES GROSS BETA RADIOACTIVITY (110-3 pCl/m 3 ) LOCATIONS IPERJOD ENDING
01
(+I'-) 02 (+.I-) 03
,(+/-)
04 (+I-) 05 (+/-) 06 (+/-)
... 07
(+/-} 21 (+/-) 01/05{21 11.30 2.510 9.920 2.450 9.880 2.500 9.920 2.490 8.770 2..390 8.510 2..370 9.860 2.450 7.500 2..300 01112121 12.90 2.6(1,0 12.10 2.580 13.80 2.6"40 17.50 2.840 15.80 2.760 14.50 2720 14.10 2..690 15.80 2..750 01f19l211 22.50 3.2!'],(I 18.20 3.050 22.00 3.280 21.10 3.230 14.30 2.860 18.20 3.030 20.50 3.160 24.10 3.340 01{26121 11.70 2.440 11.10 2.400 15.70 2.660 15.20 2.630 14.80 2.630 15.50 2.670 11.40 2.420 14.70 2..620 02l03121 5.460 2.020 6.560 2.09'0 7.750 2.150 7.740 2.170 7.150 2.130 6.6fl.l) 2.100 10.00 2..300 8.770 2..220 02l10l21 15.90 2.950 13.80 2.840 17.90 3.060 18.20 3.070 14.80 2.900 15.£0 2.960 16.20 2.970 16-20 2..970 02/16121 17.80 3.200 16.10 3.370 16.40 3.130 21.00 3.370 14.00 2.S9-0 17.70 3.58.0 17.30 3.310 18.10 3.220 02/24'21 24.10 3.020 15.90 2.660 14.40 2.550 18.60 2.770 15.80 2.670 17.30 2.740 19.50 2.840 19.30 2.810 03102/21 10.80 2.750 10.70 2.750 12.80 2.88.Q 6.330 2.450 7.920 2.560 '9.590 2..670 10.60 2.740 13.80 2..950 03/09/21 15.60 2.750 13.20 2.620 15.20 2.730 15.80 2.770 13.30 2.630 16.70 2..810 12.40 2..570 15.00 2..720 03116121 17.30 2.820 14.00 2.640 13.90 2.6£0 1,s.00 2.770 15.30 2.700 14.50 2.650 13.40 2..610 17.00 2.800 03123121 16.50 2.970 1UO 2.670 19.20 3.110 11.10 2.670 14.80 2.870 12.30 2.750 13.30 2.790 17.70 3.030 03131/21 15.20 2.680 10.60 2.430 12.50 2.500 10.00 2.370 11.20 2.450 12.00 2.550 12.90 2..550 11.50 2..480 04106,121 23.30 3.480 14.80 3.030 18.40 3.280 16.70 3.170 17.20 3.180 18.60 3.250 17..50 3.190 18.20 3.220 04/13/21 16.00 2.740 16.00 2.730 17.30 2.810 18.40 2.870 13.40 2.570 16.80 2.770 15.£0 2.710 17.60 2..820 04/20121 9.140 2.320 8.490 2.280 9.600 2.350 8.880 2.310 8.340 2.200 7.510 2.230 8.350 2..270 10.70 2.420 04127/21 23.20 3.300 15.20 2.890 20.80 3.180 18.00 3.040 12.40 2..740 18.80 3.080 16.80 2..980 18.00 3.040 05{04/21 20.80 3.110 17.0[) 2.920 17.70 2.951.l 18.60 3.(100 14.80 2.800 17.40 2.940 22.10 3.180 18.30 2..990 05111/21 10.10 2.500 11.80 2.600 13.40 2.680 12.40 2.740 7.760 2.320 11.00 2.630 9.430 2.440 10.40 2..590 05{18/21 13.50 2.670 13.00 2.660 11.9[) 2.600 15.40 2.790 15.00 2.780 15.20 2.790 18.00 2..930 17.20 2..890 05125121 18.40 3.000 15.50 2.840 20.9[) 3.120 20.20 3.08.0 19.30 3.040 24.10 3.280 22.80 3.210 14.30 2.770 06102/21 13.70 2.460 11.00 2.320 13.90 2.470 12.90 2.410 13.80 2.460 14.80 2.510 12.80 2.410 14.80 2.520 06,100121 13.50 2.990 14.40 3.030 11.20 2.840 11.00 2.8.30 11.50 2.850 12.00 2.890 13.50 2.980 13.20 2..960 06/15121 11.40 2.710 8.430 2.560 9.050 2.59[) 7.730 2.510 8.600 2.570 9.660 2.630 11.50 2.740 6.640 2..440 06{22/21 19.70 3.020 16.00 2.810 17.00 2.870 14.40 2.730 18.30 2.940 16.90 2..870 22.60 3.160 18.90 2..980 06129121 7.630 2.310 9.110 2.400 8.310 2.3,00 8.700 2.350 9.020 2.390 10.00 2.450 {HMO 2.450 11.30 2..530 35
TABLE3-3 AllR PARTICULATES GROSS BETA RADIOACTIVITY (10-a pCl/rn 3 ) LOCATIONS IPERJOD ENDING 01
----------7:;.i-)___
02 03
*---------1".;:i:r--* -----------------
(+f-) 0-4
----------(+~)--- *---- ---------
05 (+/-)---* -- -------- 06 (+/-) 07
----------r..;:j~---
21
**m**************
(+/-) 07/06121 10.20 2.4,SO 7.120 2.290 11.20 2.590 9.970 2.490 9.200 2.460 9.340 2.430 8.720 2.390 9.740 2.450 07(14/21 12.70 2.5&0 13.50 2.610 *n.oo 2.480 14.20 2.650 12.30 2.540 10.40 2.440 15.90 2.740 14.90 2.690 07/20121 16.80 3.2.il>O 16.40 3.29-0 1620 3.280 15.70 3.240 18.40 3.410 13.00 3.110 17.40 3.340 14.50 3.180 07/27/21 21.60 3.130 17.30 2.920 18.80 3.000 21.30 3.120 21.60 3.150 20.110 3.110 16.90 2.900 23.10 3.210 08/03/21 25.20 3.230 19.90 2.970 20.30 2.000 22.30 3.090 18.40 2.890 19.50 2.950 20.70 3.010 18.30 2.890 08/10/21 20.20 2.990 19.70 2.950 20.50 3.000 17.10 2.810 14.60 2.660 21.70 3.060 20.50 2.990 20.00 2.970 08/17/21 14.50 2.770 11.30 2.600 7.770 2.39-0 9.170 2.470 10.50 2.550 8.770 2.440 13.70 2.730 10.80 2.570 08/25121 15.70 2.660 12.30 2.411-0 12.60 2.5CO 13.10 2.530 8.670 2.300 12.30 2.500 14.10 2.580 15.80 2.670 08/31/21 25.60 3.720 20.00 3.440 20.50 3.470 21.10 3.500 20.50 3.470 20.10 3.440 23.10 3.590 17.90 3.330 09/07/21 17.50 2.800 14.50 2.640 16.SO 2.770 11.40 2.460 15.60 2.700 12.10 2.500 14.60 2.640 16.30 2.730 09/14l21 27.50 3.420 20.60 3.09'0 22.20 3.170 23.0-0 3210 18.90 3.000 22.10 3..1:50 24.80 3.290 23.30 3.230 Oe/21121 22.00 3210 17.30 2.98,0 22.70 3.240 22.00 3.200 21.00 3.1,!!0 19.00 3.000 22.10 3.220 21.10 3.170 09/28/21 19.70 3.130 16.30 2.940 15.10 2.820 13.80 2.770 15.40 2.8'!!0 17.50 3.000 20.10 3.140 Hi50 2.950 10/05/21 28.80 3.530 25.20 3.390 31.80 3.750 30.00 3.650 30.60 3.640 29.10 3.570 27.50 3.500 11.70 2.680 10/12121 12.40 2.670 9.570 2.500 7.440 2.380 11.30 2.600 9.310 2.4,8,0 10.30 2.540 10.90 2.570 7.110 2.350 10{19/21 2Ul0 3.100 20.50 3.100 8.300 2.430 21.80 3.170 22.90 3.230 20.80 3.130 20.00 3.090 20.60 3.110 10/26/21 28.70 3.451) 33,60 3.66,0 27.30 3.3El/J 33.10 3.fi40 32.40 3.600 30.00 3.500 30.10 3.500 29.40 3.490 11/02/21 7.880 2.480 9.900 2.610 8.200 2.500 7.270 2.450 8.740 2.540 10.10 2.620 6.320 2-380 11.00 2.670 11/09/21 17.80 2.970 16.40 2.900 16.70 2.920 14.10 2.78.0 17.00 2.930 19.30 3.050 14.20 2.780 11.80 2.650 11/16121 25.90 3.380 21.40 3.160 24.40 3.300 17.00 2.950 22.50 3.200 21.60 3..160 21.ao 3.180 22.20 3.200 11(23121 21.00 3:170 19.90 3:120 17.60 3.00.0 18.90 3.000 21.00 3.190 18.50 3.060 18.60 3.050 2-um 3.190 11/30/21 18.70 2.930 16.20 2.800 15.70 2.770 13.30 2.630 18.'IID 2.92,0 15.20 2.740 20.70 3..000 11.20 2.520 12/07121 28.60 3.530 22.60 3.260 23.60 3.310 16.40 2.950 25.40 3.400 26.80 3.460 22.50 3.260 25.60 3.400 12/14/21 22.30 3.1&0 20.20 3.080 16.20 2.880 23.30 3.230 20.00 3..060 21.60 3.140 21.40 3.140 22.70 3.200 12/21121 19.70 3.150 18.00 3.070 14.40 2.880 24.20 3.370 15.70 2.960 19.80 3.170 19.00 3.120 16.80 3.010 12/28121 29.10 3.500 30.70 3.640 25.160 3.410 32.00 3.&90 29.20 3.560 24.40 3.360 25.70 3.420 20.60 3.180 Mean 17.87 2.946 15.47 2.831 16.04 2.856 16.32 2.868 15.71 2.834 16.29 2.878 16.80 2.897 16.22 2.867 36
TAELE3-3 AIR PARTICULATES GROSS BETA RA!)[OACTIVITY (10'3 pCftm 3 } LOCATIONS PERlOD 24.. ENDING
* 22
*---------(.:;.i_3---
23
*---------1~:f--* -- -------- -------
(+/-) 01A
*---------{+~,---
05A
*---------1~;:f--*
01/05121 12.10 2.580 10.10 2.470 12.00 +/- 2.650 9.980 2.440 9.310 2.430 01112{21 13.00 2.600 17.10 2.8,lO 14.50 .+/- 2.750 12.90 2600 16.60 2.800 01!19!21 20.90 3.220 20.00 3.160 24J'O +/- 3.310 19.00 3.130 21.60 3.240 01126/21 14.90 2.630 "13.50 2.550 13.00 +/- 2.570 12.70 2.500 12.30 2.480 02/03121 5.590 2.010 7.540 2.150 8.120 +/- 2.190 7.28-0 2.140 6.890 2.110 02/10121 17.10 3.010 16.20 2.970 18.20 +/- 3.070 15.70 2.9'40 15.70 2.9!i0 02/16'21 19.20 3.270 16.20 3.130 22.00 +/- 3.340 16.60 3.130 19.60 3.230 02124121 17.10 2.700 21.00 2.920 19.70 +/- 2.8£0 18.20 2.750 15.70 2.660 03.!'02{21 8.730 2.,62'0 9.240 2.600 10.60 +/- 2.740 10.20 2.720 9.150 2.6!i0 03to9121 10.60 2.470 14.10 2.670 11.50 +/- 2.520 13.00 2.650 13.50 2.640 03l16f21 14.00 2.1640 17.10 2.810 14.90 +/- 2.680 17.50 2.830 14.10 2.620 03123121 9.600 2.58'() 12.00 2.770 14.20 +/- 2.860 15.90 2.840 12.00 2.710 03131121 10.70 2.430 9.550 2.3*&0 12.60 +/- 2.520 11.50 2.480 9.810 2.370 04,06121 17.90 3.210 19.10 3.2:!Hl 118.10 +/- 3.230 19.40 3.270 14.50 3.020 04113121 15.00 2.6SO 17.60 2.820 21.10 +/- 2.000 15.00 2730 15.90 2.710 04120121 7.450 2.210 9.540 2.300 10.10 +/- 2.400 10.30 2.480 9.1610 2.370 04127121 16.00 2:940 19.00 3.140 16.60 +/- 2.970 17.30 3.010 18.40 3.060 05/04121 18.SO 3.000 20.30 3.0itO .16.90 +/- 2.910 18.80 3.010 16.30 2.880 05,'11/21 10.40 2.510 11]0 2.670 10.60 +/- 2.480 10.SO 2.550 10.30 2.480 05118{21 15.70 21!00 17.20 2,680 16.50 +/- 2.880 14.40 2720 14.'IO 2.730 05{2:5{21 16.00 2.870 20.20 3.080 20.00 +/- 3.110 14.10 2.760 19.60 3.060 06/02121 12.20 2.300 12.70 2.410 13.70 +/- 2.470 13.00 2.460 13.80 2.470 06to8f21 11.60 2.SSO 14.10 3.030 13.50 +/- 2.980 11.30 2.990 13Ji0 2.980 06115£21 9.980 2.630 10.20 2.600 8.840 +/- 2.580 9.500 2.600 8.760 2.580 06122f21 17.80 2:920 18.10 2.940 20.60 .+/- 3.140 18.50 2.950 17.90 2.920 06/29{21 7.530 2.200 111.00 2.500 10.30 +/- 2.400 10.20 2.480 10.10 2.450 O.Control Station 37
TABLE3-3 AIR PARTICULATES GROSS BETA RADIOACTIVITY
-("Io.a pCl/mJ)
LOCATIONS IPERlOD ENDING 22
******a**********
(+J-) *------------- ---* 23 (+/-) 24*
*********m*******
(+/*) 01A
**********m******
(+I*) 05A
*-------**c+i:;***
07/06/211 9.950 2.470 10.20 2.49,0 9.560 2.460 6.410 2.230 12.90 2650 07/14/211 13.40 2.720 17.70 2.820 15.40 2.700 15.10 2.850 16.60 2.750 07/20/21 12.50 3.050 15.10 3.210 18.80 3.440 13.60 3.110 "15.90 3..270 071271211 17.70 2.940 18.70 2.99-0 22.20 3:tB,I) 19.30 3.010 20.00 3.070 08,'03/21 19.20 2.940 16.10 2.770 18.60 2Jf'OO 22.90 3.120 21.20 3.030 08/10/21 18.80 2.910 18.30 2.880 20.30 2.9&0 21.00 3.030 23.70 3.150 08/17/21 12.40 2.650 12.60 2.670 11.80 2.63-0 11.90 2.620 12.50 2.670 08/25121 13.10 2.530 8.7110 2.29;0 15.10 2.640 13.60 2.550 16.10 2.690 08/'31/21 19.20 3.400 21.60 3.530 24.40 3.650 26.20 3.750 21.40 3.510 09,07/21 18.00 2.820 13.60 2.580 12.50 2.53,0 . 16..20 2.730 13.10 2.560 09/14121 27.50 3.420 :26.30 3.370 24.60 3.260 22.20 3.100 25.80 3.320 09/21121 19.50 3.09'0 20.40 3.140 21.10 3.290 23.10 3.260 20.40 3.150 09/28121 16.80 3.110 17.90 3.010 18.10 2.920 16.40 2.930 15.10 2860 10105/21 26.90 3.470 31.30 3.670 30.20 3.740 27.70 3.490 28.10 3.530 10/12i'21 10.50 2.500 10.20 2.540 9.390 2.400 10.10 2.530 11.60 2.620 10/19/21 19.90 3.070 21.00 3.130 19.80 3.100 18.00 3.010 "15.90 2.830 10/2&21 26.90 3.370 32.40 3.610 24.70 3.250 27.00 3.370 23.60 3.250 11/02/21 7.110 2.430 8.650 2.530 10.60 2.650 8.420 2.510 8.120 2.500 11/09121 14.00 2.770 17.70 2.970 18.80 3:1(1.0 15.50 2.8.00 17.40 2.000 11/16,'21 20.30 3.1110 23.50 3.260 23.40 3.260 21.70 3.180 23.00 3.220 11/23/21 22.50 3.240 17.50 2.mm 22.90 3.180 20:10 3.130 12.BO 2.760 11/30121 16.00 2.790 18.70 2.930 16.20 2.80(1 12.30 2.513,0 15.70 2.770 12/07121 22.50 3.250 28.00 3.510 22.90 3.270 22.10 3.230 22.90 3.2&0 12/14,121 20.70 3.110 23.00 3.210 23.30 3.220 23.90 3.260 19.70 3.050 12"21/21 19.20 3.130 19.70 3.150 23.00 3;320 18.50 3.000 20.30 3..190 12"28/21 28.00 3.520 33.50 3.760 30.10 3.600 20.80 3.210 25.00 3.380 Mean 15.81 2.846 17.10 2.910 17.37 2.924 16.15 2.867 16.11 2.858 Mean all lndicatlor locatklf"is 16.33 2871 ..Control Station 38
TABLES-4 AIRBORNE IODINE (1 o-3 pCf/m 3 ) LOCATIONS PERIOD ENDING 01 02 03 04 05
----------06--------* ------ --------
07 21 01/05121 < 26.07 < 26.39 < 11.37 < 26.82 < 26.53 < 17.34 < 20.13 < 20.62 01/12/21 < 18.25 < 9.434 < 18.19 < 18.19 < 18..28 < 8.584 < 18.80 < 18.51 01/19/21 < 19.51 < 19.24 < 9.151 < 19.58 < 19.37 < 18.92 < 19.02 < 19.09 01{26121 < 118.20 < 18.23 < 18.07 < 18.0fl < 8.522 < 12.13 < 28.93 < 2.8;913 02/03/21 < 21.17 <21.17 < 21.04 < 9.907 < 21.17 < 9.240 < 20.31 < 20.31 02/10,'21 < 26.43 < 26.47 < 12.40 < 26.47 < 26.47 < 12.48 < 27.29 < 27.24 02/16/21 < 24.11 < 12.26 < 24.31 < 24.21 < 23.54 < 13;91 < 26.93 < 25.50 02/24/21 < 19.79 < 20.01 < 19.67 < 19.79 < 10.30 < 13.64 < 32.37 < 32.12 03/02l21 < 19.65 < 19.61 < 110.02 < 19.611 < 19.61 < 18.99 < 18.99 < 8.892 03/09121 < 18.99 < 19.02 < 18.99 < 11.05 < 26.34 < .26.34 < 26.34 < 26.30 03,116121 < 18.02 < 17.99 < 9.334 < 18.18 < 17.89 < 23.06 < 23.18 < 23.1.8 03/23/21 < 18.75 < 15.66 < 18.72 < 18.72 < 18.66 < 7.580 < 16.11 < 16.11 03/31/21 < 27.24 < 27.07 < 26.66 < 25.811 < 26.00 <26.04 < 26.04 < 10.94 04/06121 < 17.31 < 17.46 < 17.83 < 12.52 < 26.12 < 26.07 < 26.011 < 25.96 04/13/21 < 9.269 < 22.02 < 22.02 < 22.02 < 21.87 < 16.15 < 16.24 < 16.24 04120,'21 < 116.30 < 16.32 < 1*6.32 < 16.35 < 11.02 < 8.832 < 14,91 < 14.93 04127121 < 27.04 < 27.00 < 27.00 < 27.00 < 11.32 < 17.92 < 17.92 < 17JIQ 05/04,121 < 12.19 < 29.08 < 29.08 < 29.08 < 29.08 < 35.49 < 35.55 < 35.55 05111/21 < 28.51 < 29.92 < 28.36 < 12.64 < 28.02 < 29.27 < 27.90 < 2927 05118/21 < 17.88 < 18.01 < 18.01 < 18.01 < 8.253 < 15.89 < 15.81 < 10.57 05/25121 < 27.78 < 27.74 < 27.69 < 26.93 < 22.60 < 27.02 < 26.97 < 26.00 06/02'21 < 19.83 < 9.539 < 19.86 < 19.86 < t9.83 < 2321 < 23.211 < 23.28 06108/21 < 1423 <21.10 < 21.10 < 21.10 < 21.06 < 22.95 < 22.95 < 22.91 0611&21 < 12.16 < 12.28 < 12.28 < 12.28 < 10.29 < 26.26 < 11.03 < 26.31 06/22121 < 23.23 < 23.11 < 23.15 < 17.33 < 17.33 < B.866 < 17'.30 < 17.36 06/29121 < 21.29 < 21.21 < 20.71 < 24.42 < 24.68 < 24.72 < 24.72 < 10.40 39
TABLE3-4 AIRBORNE IODINE (10.J. pCftm 3 ) LOCATIONS PERIOD ENDING 01 02 03
------ 04 05
*---- --------- ---- 06 1:11 - - - - - - - - - - - - - - - - * ------ --------
07 211 07/06t21 < 14.34 < 14.39 < 112.39 < 14.57 < 14.67 < 11.16 < 11.14 < 11.10 07/14/21 <21.27 < 21.18 < 21.18 < 7.064 < 16.69 < 16.74 < 16.82 <; 16.84 07/20!21 < 18.09 < 18.20 < 18.20 < 18.20 < 9.353 < 18.92 < 22.48 < 22.-48 07/27121 < 113.52 < 13.55 < 13.55 < 20.75 < 8.747 < 20.86 < 20.82 < 20.75 08t03f21 < 112.0fl < 12.07 < 12.07 < 12.07 < 12.05 < 8.964 < 19.70 < 19.70 08110121 < 118.66 < 18.59 < 18.66 < 18.59 < 8.445 < 15.42 < 15.40 < 15.40 08117/21 < 14.J.1 < S.460 < 14.38 < 14.36 < 14.36 < 15.82 < 13.35 < 15.87 08125/21 < 113.77 < 13.80 < 13.77 < 13.77 < 7.067 < 28.88 < 28.75 < 12.06 08131121 < 14.15 < *t4, 12 < 14.12 < 14.12 < 14.12 < 18.39 < 18.39 < 18.3:9 09/07/'21 < 23.20 < 9.749 < 23.25 < 23.25 < 23.25 < 9.332 < 20.47 < 20.51 09114!21 < 21.82 < 25.81 < 25.85 < 25.85 < 25.68 < 36.10 < 36.29 < 3,6.41 09,1'21l21 < 11.75 < 11.73 < 11.71 < n.n < 11.79 < 8.340 < 18.23 < 18.26 09/28.,'21 < 10.84 < 25.12 < 24.98 < 25.23 < 25.67 < 14.ml < 14.67 < 14.64 10l05f21 < 26.97 < 27.30 < 28.15 < 25.42 < 29.79 < 2fl.74 < 29.63 < 29.02 10!12121 < 13.97 < 13.99 < 14.04 < 13.99 < 13.94 < 14.70 < 14.70 < 14.72 10,'119121 < 17.09 < 17.12 < 117.12 < 17.12 < 17.21 < 19.91 < 47.47 < 47.J.0 10126t21 < 14.48 < 34.47 < 34.41 < 34.41 < 34.35 < 32.06 < 32.()6 < *13.51 11,ro2121 < 17.83 < 8.638 < 17.&6 < 17.86 < 17.86 < 10.58 < 10.54 < 10.58 11l09i'21 < 27.93 < 11.73 < 27.97 < 27.97 < 27.97 < 19.24 < 19.24 < 16.09 11f16f21 < 8.774 < 8.744 < 8.744 < 8.759 < 8.'683 < 27.12 < 27.31 < 27.35 11123/21 < 29.22 < 29.27 < 29.27 < 29.27 < 15.08 < 18.95 < 28.09 < 27.00 11/30121 < 21.82 < 21.78 < 2*t.78 < 11.50 < 11.50 < 11.50 < 11.50 < 11.54 12107/21 < 110.52 < 10.56 < 101i6 < 10.56 < 8.864 < 5.9-4.B < 13.07 < 13.07 12.'14/21 < 10.30 < 21.68 < 21.68 < 21.68 < 21.60 < 14.04 < 14.09 < 14.09 12/21/21 < 27.29 < 27.29 < 27.2*9 < 27.29 < 11.48 < 12.00 < 12.84 < 12.M 12/28/21 < 12.20 < 28.88 < 28.83 < 28.88 < 28.78 < 19.9B < 19.98 < 20.01 40
TABLE3-4 AIRBORNE IODINE (1Cf3 pCi/m3 } LOCATIONS PERlOD ENDING 22 23 24~ 01A 05A 01!05/21 < 20.62 < 20.69 < 29.65 < 29.08 < 29.54 01112/21 < 18.51 < 18.64 < 22.93 < 22.10 < 22.22 01119,'21 < 1620 < 19.26 < 31.77 < 33.13 < 3290 01/26,'211 < 28.88 < 28.83 < 15.92 < 15.89 < 15.95 02/03,'211 < 20.31 < 20.31 < 14.67 < 14.67 < 14.67 02/10/21 < 27.24 < 27.29 < 28.76 < 28.66 < 28.71 02/16121 < 25.30 < 25.66 < 14.42 < 14.83 < 14.45 02/24121 < 32.02 < 32.02 < 21.59 < 21.09 < 21.49 03/02l21 < 19.03 < 18.99 < 68.60 < 68.74 < 68.60 03/09121 < 21.82 < 21.86 < 9.153 < 21.82 < 21.82 03/16121 < 23.22 < 10.58 < 23.06 < 23.23 < 22.94 03/23/21 < 16.13 < 16.11 < 12.76 < 12.67 < 12.60 03131/21 < 12.25 < 12.23 < 12.21 < 12.35 < 1221 04/06/21 < 20.37 < 20.46 < 20.46 < 10.30 < 20.42 04/13/21 < 13.68 < 16.27 < 24.09 < 24.39 < 24.13 04/20/21 < 14.88 < 14.93 < 1027 < 10.65 < 10.27 04/27/21 < 17.95 < 8.391 < 14.67 < 14.67 < 14.65 05/04/211 < 35.55 < 14.91 < 28.62 < 28.67 < 28.62 05111/21 < 26.96 < 28.09 < 11.04 < 27.01 < 26.55 05/18/21 < 15.72 < 15.75 < 20.85 < 20.41 < 20.70 05/25,'211 < 24.48 < 24.44 < 10.20 < 24.48 < 24.53 06/02l21 < 23.28 < 10.59 < 18.94 < 19.36 < 18.97 06/08/211 < 11.79 < 23.05 < 24.00 < 25.59 < 11.37 06115(211 < 26.08 < 26.12 < 14.42 < 14.24 < 14.42 06/22/21 < 20.70 < 20.77 < 21.49 < 20.70 < 17.28 06/29/21 < 26.39 < 26.30 < 25.33 < 26.57 < 11.05 "Control Station 41
TABLE3-4 AIRBORNE IODINE (10"'3 pCi/m~) LOCATIONS PERlOD ENDING 22 23 24"
**** ***********ca**
01A 05A 07/06,1'21 < 11.16 < 11.22 < 17.60 < 17.36 < 17.51 07/14/21 < 27.21 < 25.71 < 25.52 < 27.79 < 10.70 07/20l21 < 22.43 < 22.43 < 24.71 < 24.31 < 24.61 07/27/21 < 17.24 < 17.24 < 17.J,6 < 14.45 < 17.33 08/03121 < 19.70 < 19.70 < 19.07 < 19.14 < 19.07 08/10121 < 12.97 < 15.45 < 17.28 < 17.37 < 17.28 08/17121 < 15.82 < 15.82 < 62.75 < 62.53 < 62.75 08/25{21 < 28.75 < 28.79 < 14.415 < 14.37 < 14.43 08/31/21 < 8.383 < 18.42 < 18.69 < 18.80 < 18.76 09107/21 < 20.47 < 20.47 < 18.79 < 18.66 < 18.69 09{14121 < 36.41 < 15.27 < 24.34 < 24.68 < 24.43 09l21/21 < 18.23 < 18.26 < 28.43 < 26.93 < 27.07 09/28/'21 < 7.584 < 14.59 < 16.76 < 17.56 < 17.58 10/05/'21 < 27.26 < 27.35 < 28.73 < 27.07 < 12.45 10/12121 < 8.677 < 14.72 < 17.95 < 18.82 < 18.82 10/19l21 < 47.22 < 47.30 < 24.24 < 23.86 < 23.49 10t26!21 < 32.17 < 32.17 < 32.00 < 32.16 < 32.79 11/02121 < 10.56 < 10.56 < 22.14 < 22.10 < 22.14 11/09l21 < 19.24 < 19.24 < 17.08 < 16.48 < 16.48 11/16/21 < 27.35 < 11.47 < 23.19 < 23.15 < 22.91 11/23/21 < 28.04 < 28.04 < 11.34 < 11.76 < 11.86 11/30!21 < 17.62 < 17.59 < 14.77 < 17.65 < 17.59 12107121 < 13.03 < 13.07 < 42.15 < 42.23 < 42.38 12114}21 < 8.302 < 14.09 < 7.505 < 7.544 < 7.505 12/21/21 < 12.84 < 12.84 < 16.93 < 16.87 < 16.93 12/28/21 < 20.05 < 9.697 < 15.99 < 16.19 < 15.00 "Control Station 42
TABL.£3-5 AJR PARTICULATES (10-2 pCl/m 3 ) GAMMA SPECTRA - QTR 1 (12129/20-03/31121)
- ------ ---- *---------**c+i~----*
LOCATION B~-7 Cs-134 Cs-137 01 132.50 20.240 < 0.9252 < 0.1726 02 129.70 21.310 < 0.9714 < 0.9978 03 130.50 20.150 < 1.2100 < 0.8862 04 146.70 32.250 < 1.ei110 < 1.5900 05 118.60 23.160 < 1.2640 < 1.3640 06 150.40 27.890 < 1.6010 < 1.7100 07 120.50 20.790 < 0.8627 < 0.6031 21 141.60 23.310 < 1.1720 < 0.9743 22 120.90 19.710 < 0.8343 < 0.7145 23 140.70 22.860 < 0.8584 < 1.0300 24* 137.00 25.380 < 1.4250 < 1.3130 01A 140.40 20.060 < 1.2890 < 0.5576 OOA 140.00 27.320 < 1.4150 < 1.4670 GAMMA. SPECTRA AND STRONTIUM 89190- QTR 2 (03/31/21 06129/21) LOCATION Bo-7
*----------*<+i-=r---- ---------- ---------*
Cs-134 Cs-137 Sr-89 Sr-90 01 142.50 20.450 < 0.8384 < 0.8369 < 6.0000 < 2.7500 02 130.10 22.610 < 1.4190 < 1.2610 < 8.4200 < 2.9500 03 144.40 20.890 < 0.6890 < 0.7664 < 8.670-0 c 2.5000 04 131.10 24.061) <1.1630 < 1.1600 < 9.2700 < 3.2800 05 131.90 21.640 < 0.8973 < 0.733-4 < 8.9400 < 3.1400 06 141.60 29.450 < 1.7080 <- 1.4440 < 9.4500 < S.,6800 07 146.40 23.640 < 1.0840 < 1.2680 < 9.4900 < 3.2600 21 152.40 23.680 < 1.1490 < 0.7219 < 9.3300 < 3.7900 22 163.90 25.340 < 1.6510 < 1.1400 < 8.5000 < 2.6000 23 149.20 20.500 < 0.9818 < 0.7270 < 9.3300 < 2.2900 24* 141.50 28.220 < 1.0850 < 1.2460 < 9.2700 < 2.7700 01A 128.30 20.600 < 0.8586 < 0.7901 < 9.4400 < 3.3700 05A 151.10 22.530 < 1.1650 < 1.0510 < B.8200 < 2.7800
- Control Location 43
TABLE3-5 AIR PARTICULATES (10-3 pCi/mJ) GAMMA SPECTRA- QTR 3 (06129,"21 - 09128'21) LOCATION BG-7 (+/-) Cs-134 Cs-137 01 161.10 31.170 < 1.3740 < 1.3240 02 125.50 17.590 < 0.9080 < 0.8975 03 140.00 21.:370 < 0.6540 < 0.8632 04 122.20 21.000 < 1.3000 < 1.2610 05 *m2.oo 26.810 < 1.8430 < 1.6:WO 05 "133.20 22.900 < 1.0730 < 0.8908 07 139.30 22.440 < 1.2390 < 0.9453 21 1!24.10 22.400 < 1.0480 < "1.0030 22 154.20 22.810 < 1.1480 < ,0.6358 23 110.10 18.220 < 1.1090 < 0.9366 24* 11:27.30 20.780 < 0.9881 < 1.0630 01A 148.00 21.940 < 0.8929 < 0.9770 05A 128.50 24.090 < 1.4840 < 1.1891'.1 GAMMA SPECT.RA-QTR 4 (09.128l21- 12128/21) Annual Mean .k!?2..!LQtJ_ 13e-7
----------1;;_1-----
Cs-134 Cs-137
---------~-------- *------------r;;.:r--*
.B<'l-7 01 131.90 20.570 < i.0580 < 0.8335 142.00 23.108 02 128.00 20.300 < t.0380 < 0.9777 128.33 20.453 03 142.60 28.000 < i.7020 < 1.4280 139.38 22.728 04 '151.10 22.700 < 1.0570 < 1.0670 137.78 25.228 05 153.80 24.DOO < 1.8070 < 1.5600 126.80 23.903 00 134.00 22.170 < 1.0000 < 0.9351 139.,80 25.603 07 114.50 18.520 < 1.0460 < 0.8470 130.18 21.348 21 131-20 2U)!JO < 1.2230 < 1.5220 137.33 22.845 22 145.60 28.950 < 1.5040 < 1.3950 146.15 24.203 23 159.10 23.220 < 0.9fi,BQ < 0.8052 139.78 21.200 24" 145.70 25.240 < 1.3760 < 1.3090 137.88 24.905 01A 111.40 20.470 < 1.0510 < 0.9918 132.03 20.768 05A 152.50 28.170 < 1.9510 < 1.6150 143.03 25.526 Moan of Afl Indicator Loeatkms 136.88 23.076
" Control Locatlon 44
TABLE3-6 Soil (pCl/kg dr,' wt) COLLECTJON LOCATION DATE Sr-89 Sr-BO 01 02 03 04 05 06 07 Soil sampled on Triennial basis. Not required in 2021 21 22 23 24.. 05A Mean COLLECTION LOCATION DATE 01 02 03 04 05 06 07 21 22 23 24* 05A Mean
- Concroi Location 45
TABLE3-7 Precipitation (pCi/L) LOCATION 01A COLLECTION DATE GrmB Ha3 RainFall (inches)
(+/-)
01/26/21 4.8 1.4 < 915 1.82 02/24/21 2.6 1.0 < 954 4.30 03/31/21 3.1 1.0 < 937 3.07 04/27/21 2.9 1.1 < 942 3.44 05/25/21 (a) (a) 0.41 06/29/21 1.7 0.9 < 963 5.34 07/27/21 8.6 1.7 < 718 2.40 08/31/21 4.2 1.3 < 925 4.99 09/28/21 7.6 1.6 < 745 2.54 10/26/21 6.7 1.5 < 925 3.26 11/30/21 5.3 1.3 < 970 1.81 12/28/21 (a) < 935 0.36 Mean 4.7 1.3 Total 33.74 a) Sample unable to be analyzed (insufficient volume). 46
TABLE 3-7 Preclpi!a!ion (pCiJL) LOCATION 01A GOLLECTION .***P..e-I.§.... .******!3.~J........ . .....~!i:t.~1 ****** --------- -* ..... --------
*-------Fe--59 Co-58
------ Co-00 Zn~5 Zr-95 06/29/21 < 35.02 < 11.383 < 9.689 < 2.772 < 1.312 < 2.897 < 5.213 12/28121 < 40.10 < 1.456 < 10.63 < 3.016 < 1282 < 3.110 < 5.945 Mc-an COLLECTION DATE Nb-95 Cs-134 Cs-137 Ba-140 La-140 l-131 Th-228 06/29l21 < 3.216 < 1.374 < 1.239 < 827.1 < 283.8 < 5325 < 2.212 12,'28121 < 3.436 < 1288 < 1.165 < 1226 < 413.5 < 10800 < 3.284 Mean 47
TABLE3-8 MJLK (pCiJL) COLLECTION LOCATION DATE Sr-89 Sr-90 J-131* Cs-134* Cs-137* Ba-140* La-140..
*Milk samples could not be obtained in 2021 due the lack af dairy farms within the sampling area .
.. LLD ldontlfred In ODCM 48
TABLE3-9 IFoDd and V.egislaLicn
,(pCl,'kg wat WI.}
LOCATION 14B COLLECTION DATE Be-7 (+1-) K:..tO
,(+/-)
!-131u Cs-134 .. Cs-137 .. Th-228
(+/-) 04/13.121 346.3 135..8 7301 480.9 < 48.50 < 23.97 < 21-42 40:32 28.51 0511 ~/21 839.4 259.7 4465 '694.3 < 52.90 < 32.31 <29-47 66J:M 48-41 06/08.121 1908 254.2 4967 544.5 < 37.10 < 24.36 < 25.85 63.53 30.83 07/14,/21 888.0 276.3 6503 1009 < 37.80 < 47.97 < 5[P.09 < 79.52 08/1001 2045 442.1 3225 679.2 < 51.30 < 42.94 < 36.96 92.54 53.82 09/14121 2804 349.3 0098 648.2 < 50.10 < 38.74 < 33.76 < 63.90 10/1212.1 2675 51a2 4664 90B.4 < 31.10 < 40.95 < 42.14 < 77.67 Mean 1644 319.4 5318 708.9 65.83 40.39 L!OCATION 15 COLLECTION
, ____Cs-13,iu DATE Be-7
------**-:c+1:r*-
K40 (+/-) 1-131..
***-***-***-a* *---------~---
Cs-137 .. Th-228 (+/-) 04/13/21 1095 145.7 4198 293.4 < 46.10 < 15.29 < 13.78 36.46 21.83 05/H/21 883.4 339.5 ff,[)36 802.3 < 50.20 < 33.97 < 26.90 62.llO 43.06 06/08.121 855.3 210.7 4932 549.8 < 37.90 < 26.67 < 26.41 < 37.70 07/14.121 1085 263.4 8139 1070 < 26.40 < 36.18 < 41.39 77.35 52.53 OH-/1Ul21 1190 315.5 6-899 855.5 < 43.10 < 29.70 < 31.95 < 65.65 09'/14.121 538.5 406.2 9218. 935.2 < 39.70 < 35.30 < 35.26 < 63.52 11}/12/21 2180 343.8 5449 727.8 < 39.80 < 37.89 < 27.36 < 65.14 Mean 111B 289.3 6267 747.7 58.60 39.14 WCATION 15* COLLEC'rJON ____Cs-13'\*~ DATE Be-7
*-----**-:c-:;:1:r*- --
K40 (+/-} 1-131 .. Cs-137 .. Th-228 (T/-) 04/13,/21 1314 145..5 5575 373.6 < 50.00 < 16.97 < 13.34 < 22..84 05/H/21 < 293.4 3't27 538.5 < 47.30 < 27.54 < 23.24 < 53.42 06108.121 220.9 204.1 3,063 355.6 < 44.40 < 20.33 < 18.17 < 25.56 07/14121 1870 273.1 7189 501.8 < 34.60 < 23.14 < 21.69 66.78 35.85 08110121 1179 324.7 7055 782.0 < 50.60 <34.46 < 33.73 111.6 51.10 09/11\/21 2961 338.9 12940 858.6 < 51.20 < 36.88 < 36.18 91-26 46.54 10/12121 2737 485.6 4572 83B.9 < 24.10 < 49.97 < 31.39 < 75.22 Meari 1714 295.3 6260 607.0 89.88 4*1.50
- control Stallon tt UD ld~nllfed In OIDCM 49
TABLE3-9 IFooo and Vei;ralallcfl
*(pCl/kg \\\1il wt.)
LOCATION23 COLLECTION DATE Be-7 (+J-) K-40
--------r+i:r*
l-131*** Cs-134.. Cs-137.. Ac-228 (+T-) Th-228 (+f-) Th-232 (+/-) 04/13/21 1629 184.8 5B18 403.7 < 51.40 < 19.34 < 16..95 < 78.35 52.96 23.54 <78.2'9 05/11121 7B7.9 257.5 5208 627.3 < *13.50 < 32.57 < 3326 < 116.0 142.3 5{].61 < 115JJ 06/08/21 1143 254.6 5203 506.6 < 44.40 < 3Ul1 < 23.30 < 146.9 147.4 47.0B 25U 5B.22 07/14121 1871 217.9 5'1J17 455.6 < 32.10 < 2fHIO < 19.82 '177.1 123.9 198.4 36.21 220.8 56.52 08/10l21 1926 336.2 5290 728.7 < 39.00 < 48.03 < 4Cl.35 < 170.6 196.0 63.51 < 170.5 09/14121 1161 397.0 5686 655.8 < 43.50 < 38.09 < 32.48 .457.5 121.9 107.0 44.3[1 < Hl8.9 10/12121 18-11 361.9 4331 655.1 < 31.50 < 38.61 < 33.34 < 174.6 < 67.87 < 174.5 Mean 1480 287.1 5222 576.1 317.3 122.9 140.7 44.21 236.0 57.37 LOCATION26 COLLECTION DATE Be-7 (+J-) K-40
-------*z;;,:r*
l-131'~ Cs-134_. Cs-137** Th,-228 (+f-) 04/13/21 1094 187.8 2980 395.8 < 5Cl.00 < 25.07 < 21.61 32.39 28.53 05/11.121 799.8 325.2 4742 625.7 < 39.80 < 42.61 < 39.56 56A7 48.87 06/0&121 2034 288.1 5503 586.7 < 36.00 < 27.14 < 26.04 61. 0 32..99 07/14/21 1058 370.7 3932 722.1 < 313.70 < 38.19 < 36.98 < 5B.97 OB/10121 1025 300.0 2132 448.1 < 40.70 < 3327 < 29.62 < 52.28 09/14.121 1299 268.9 *~058 56D.5 < 51.40 < 34.81 < 31.8[) < 61.21 10/12121 248B 387.9 2285 547.0 < 38.60 < 39.31 < 35. ~5 < 65.87 Me*an 1400 304.1 34362 555.1 *19.95 36.80 Be-7
*-------~f-i'.1:r- K-40
--------7+1:r*
3-131'* Cs-134.. Cs-137** Ac-228 (+r-) in--228 Th-232
***-***-*r;,r::j*** -----*-*1+T-i--
AU tndlcator Mean '1410 300.0 5117 647.0 317.3 122.9 89..57 40.91 236.0 57.37 n LLD ltfentircd In ODCM 50
TABLE3-t0 WIELl 1NATER (pCIIL) COLLECTION __ 11..0CAllON __ , DAilE H-3 Sr-B'9 St-90 Mn-.54 Fe-59 Co-58 Co-60 Zn-65 01A 03f31{21 < 862 (a) (a) < 2.0B <4.23 < 2.10 < 2.00 < 4.54 0012'9'21 < 841 < 3.45 < 0.865 < !I.OD < 17.0 < 9.08 < 1.52 < '17.2 09128,'21 < 744 {a) (a) < EU1 < 15.5 < 7."l2 < 7.90 < 125 12128,'21 < 926 {a) (a) < 6.36 < 1t.5 < 7.92 < 7.57 < 15.7 Mean COUECTtONI ___..,.Cs-134 LQ<CAllON , ---------- 01A DAilE 03131121
-**u::11________
Zr-9'5
< 3.7'9 Nb-95
< 2.98 1-131
< 3.59 < 227
____q~1~!---*
< 2.21 Ba-1,10
< 10.4
----~:11~---*
< 3.55 Dllf29121 < 13.8 < 10.3 < !li.54 < !li.26 < 7.85 < 33.'9 < 11.4 00128'21 < 11..t < 7.93 < !Ml4 < 8.11 < 7.55 < 26.8 < 12.3 12128121 < 11.6 < 8.60 < 9.72 < 7.81 <6.78 < 31.1 < 1[1,0 M-ean 51
TABLE 3-11 River Water (pCI/L) LOCATION 11 COLLECTION Co-,B,D* Zln.Jflo..
- ------- ------- *---------------(+/-) - ---- --------------* *- ----------------- ------------------* *------------ ------
Co-58.. DATE H-3 Sr-89 Sr-90 Mn-54* Fc-59*
************m****** *-------------- --- -----------------
01/12/21 (a) (b) (b) < 5.462 < 12.81 < 4.974 < 4.373 < 11.59 02116/21 (a) (b) (b) < 5.332 < 9.643 < 4.713 < 6.686 < 11.90 03/16/21 4030 833.0 (b) (b) < 5.646 < 9.126 < 4.698 < 6.334 < 10.70 04/13/21 (a) (b) (b) < 5.63'6 < 12.23 < 4.78-5 < 5.646 < 7.840 05l11/21 (a) (b) (b) < 4.540 < 11.00 < 5.618 < 6.664 < 10.41 06l15/21 2620 583.0 < 4.220 < 0.907 < 5.939 < 10.29 < 7.292 < 7.403 < 14.75 07/14/21 {a) (b) (b) < 5.422 < 10.31 < 5.189 < 6.16() < 10.97 08/17/21 (a) (b) (b) < 5.82*6 < 12.14 < 5.547 < 5.096 < 12.05 09/14/211 2210 582.0 (b) (b) < 4.546 < 10.23 < 4.682 < 4.787 < 7.161 10/'12l21 (a) (b) (b) < 2.457 < 4.623 < 2278 < 2.622 < 5.38-0 11/16/21 (a) (b) (b) < 5.862 < 111.79 < 5.016 < 4.728 < 10.89 12/14t21 1580 683.0 (b) (b) < 4.982 < 9.706 < 4.604 < 5.995 < 7.412 Me.an 2610 670.3 Nlb-95..
*--------------- - ----=-------------*
Zr-95" 1-1311*
*- ------------------ Cs-134*
Cs-137*
------ Ba-140*
La-140.. 01f12l21 < 6.526 < 8.879 < 0.897 < 5.854 < 5.960 < 2625 < 9.952 02/16l21 < 5.957 < 9.935 < 0.773 < 6.639 < 6.770 < 22.41 < 9.409 03{16121 < 6.067 < 9.645 < 0.709 < 6.802 < 5.521 < 22.98 < 6.198 04113121 < 5.742 < 10.03 < 0.800 < 6.470 < 6.070 < *rn.12 < 8.434 05/11/'21 < 3.913 < 8.2{15 < 0.764 < 5.340 < 5.056 < 19.82 < 7.676 06/15,1'21 < 5.208 < 11.41 < 0.471 < 7.194 < 6.956 < 21.67 < 7.879 07/14/21 < 7.281 < 9.017 < 0.636 < 6.632 < 6.403 < 21.53 < 7.428 08/17/21 < 6.508 < 10.16 < 0.8S5 < 5.852 < 5275 < 20.34 < 8.56() 09/14/21 < 5.223 < 7.394 < 0.695 < 4.992 < 4.995 < 22.35 < 7.306 10/12/21 < 2.451 < 3.981 < 0.293 < 2.6()4 < 2.574 < 10.04 < 3.216 11/16/21 < 5.696 < 7.310 < 0.760 < 5.300 < 5.857 < 18.76 < 6.721 12114/21 < 6.023 < 9.953 < 0.402 < 5.275 < 4.457 < 19.74 < 4.745 Mo.an
- LLD ldontlfioo in ODCM.
(a) Tritium analyses 011 quarterly composito. (b), Sr-89'90 performed on 2nd quarter comJ)OSlito sample. 52
T.ABLE3-12 Surface \lVater (pClll) LOCATION OB COLLECTION DATE H-3 {+l-) Sr-89 Sr-90 Mn~54* Fe-59* Co-58..
----------~-------* *------Co-00 ..
-------- --- Zn-65*
01l12/21 (a) (b) (b) <4.744 < 9.440 < 5.193 < 5.089 < 10.3'( 02/16/21 (a) (b) {b) < 5.202 < 12.48 < 4.647 < 6.201 < ,6;795 03116121 3570 809.0 (b) {b) < 5.123 < 9.162 < 5.370 < 6.379 < 9.004 04/13/21 (a) (b) (b) < 6.146 < 16.57 < 6.227 < 8.633 < 17.52 05/11/21 (a) (b) (b) < 5.537 < 112.97 < 6.050 < 5.235 < 12.48 06,115/'21 2600 586.0 < 4.2fl0 < 0.823 < 5.200 < 111.16 < 5.277 < 6.219 < 12.£12 071141'21 (a) (b) (b) < 4.306 < 111.9'0 < 5.511 < 6.839 < 10.25 os1n121 (a) (b) (b) < 4.923 <*W.95 < 5.072 < 7.067 < 11.43 09,114121 2350 601.0 (b) (b) < 5.045 < 9.829 <4.444 < 5.002 < 8.3-07 10/12/21 (a) (b) (b) < 2.482 < 5.292 < 2.495 < 2.835 < 4.929 11116/21 {a) (b) (b) < 6.611 < 112.43 < 6.520 < 5.68{1 < 12.79 12l14f21 21110 715.0 (b) {b) < 5.469 < 10.53 < 5.587 < 4.114 < 10.29 Mean 2658 677.8 Nlb-95.. Zr-95.. 1-131* .,. Cs-134* Cs-131*
*------------- ------ Ba-140~
*------La-144}*
01l12/21 < 6.135 < 9.134 < 0.803 < 5.941 < 5.99-6 < 22.22 < 10.54 02l16121 < 4.313 < 8.985 < 0.836 < 6.603 < 6.278 < 118.78 < 6.597 03116/21 < 2.958 < 8.575 < 0.840 < 5.716 < 6.06'6 < 19.26 < 6.251 04/13/21 < 6.902 < 7.265 < D.943 < 5.386 < 6.059 < 21.67 < 7.266 05111/21 < 5.413 < 111.27 < D.627 < 6.238 < 5.761 < 23.76 < 6.585 0611:5/21 < 6.120 < 9.773 < 0.574 < 6.084 < 6.874 < 23.21 < 7.660 01/14{21 < 5.780 < 9.532 < D.777 < 7.272 < 6.723 <24.M < 7.985 08117121 -~ 5.347 < 10.76 < 0.889 < 6.610 <6.464 < 20.37 < 8.556 09l14121 < 5.008 < 7.307 < 0.679 < 4.296 < 4.608 < 20.00 < 6.362 10112{21 < 2.261 < 4.120 < 0.730 < 2.700 < 2.502 < 9.721 < 3.713 11116/21 < 5.245 < 111.12 < 0.816 < 7.482 < 6.266 < 24.16 < 8.148 12/14{21 < 5.069 < 8.382 < 0.824 < 5.214 <4-717 < 17.8.8 < 6.814 Mean
- LLD identified ln OCCM.
(a} Trltlum analyses on quarterly composite. (b) Sr-89/90 performod on 2nd! quarter oompoolkl sample. 53
TABLE 3-12 Surface INator (pCi/L) LOCATION 09N* COLLECTlON DATE H-3 Sr-89 Sr-90
..........Mn-54" Fc-59*
*------------------ Co-58..
************m****** *------ ______..,_ ---
Co-&D.. Zn-'65* 01/12121 (a) (b) {b) < 5.045 < 9.934 < 3.817 < 5.891 < 7.664 02/161211 (a) (b) {b) < 7.402 < 13.00 < 7.237 < 9.113 < 16.00 03/16121 < 975 (b} (b) < 5.600 < 12.53 < 4.810 < 5.748 < 13.37 04/13121 (a) (b) (b) < 5.625 < 8.0S6 < 6.393 < 6.535 < 9.570 05/11121 (a) (b) (b) < 5.644 < 9.202 < 5.834 < 6.901 < 11.77 06/15121 < 685 < 4.450 < 0.819 < 5.381 < 14.03 < 5.228 < 4.529 < 9.524 07{14121 (a) {b) (b) < 5.156 < 11.17 < 6.016 < 5.0S*t < 12.67 08/17121 (a) (b) (b) < 4.454 < 12.SO < 4.335 <4.684 < 13.48 09/14/21 < 710 (b) (b) < 4.392 < 9.377 < 4.497 < 6.001 < 10.89 10/12/21 (a) (b) (b) < 1.658 < 2.956 < 1.636 < 1.989 < 3.539 11/16121 (a} (b) (b) < 6.378 < 9.069 < 5.723 < 7.010 < *9.1624 12/14/21 < 950 (b) (b) < 4.320. < 10.230 < 3.676 < 4.83D < 9.707 Mean
*------Nb-95" Zr-95* 1-131*
-------Cs-134* ,.._ ------
Cs-137* Ba-140*
--~---------------*
La-140"
*-----Cl----------*
01/12121 < 4.381 < 8.069 < D.867 < 4.718 < 4.079 < 25.72 < 7.173 02/16/211 < 6.289 < 10.28 <: 0.921 < 7.806 < 5.700 < 20.98 < 7.32*1 03/16/21 < 5.732 < 10.68 < 0.756 < 6.423 < 6.949 < 22.93 < 6.275 04{13/21 < 5_826 < 9.084 < 0.743 < 6.654 < 5.626 < 21.21 < 6.822 05/11/21 < 5.856 < 11.33 < 0.693 < 6.757 < 5_035 < 17.99 < 8.381 06/15/21 < 5.465 < 10.99 < 0.594 < 7.165 < 5.247 < 24.64 < 7.143 07/14121 < 4.662 < 9.8-61 < 0.343 < 6.740 < 6.105 < 22.40 < 8.316 08/17121 < 5.165 < 9.592 < 0.820 < 5.446 < 4.749 < 19.68 < 6.360 09/14121 < 4.691 < 8.345 < 0.824 < 5.004 < 4.726 < 20.47 < 7.483 10/12121 < 1.482 < 2.546 < 0.78,8 < 1.692 < 1.755 < 7.422 < 2.615 11116/21 < 6.649 < 12.36 <0.499 < 6.817 < 6.362 < 21.40 < 6.864 12/14/21 < 4.293 < 6.543 < 0.715 < 5.592 < 4.534 < 17,12 < 4.779 Mean
- LLD ldentified ln ODCM.
°Control locatlon. (a) Tritlum analyses on quarterly composito. (b) Sr-89/90 performed on 2nd quarter oomp,oslte sample. 54
TABLES-13 Sediment Slit (pCi,t'kg dry wt) COLLECTION LOCATION DATE Sr-89 Sr-90
*--------------- -------------- -------**7+i:-,-*t K-40 Cs-134 Cs-137 Ra-226
-------------- ------*-*-r;;:r**t 08 04/08121 (a) (a) 2031 692.6 < 52.48 <54.22 < 984J:l, 09A* 041108.121 (a) (a} 15260 1742 < 83.37 < 84.54 < 1474 11 04/08121 (a) {a) 1S930 1578 < 72.71 < 00.99 < 994.1 08 10i'0S/21 < 1580 < 40.30 1537 450.4 < 39.52 < 44.47 < 847.5 09A~ 10106/21 < 720.0 < 44.80 13300 1375 < 62.04 < 47.28 < 1337 11 10.1'06/21 < 1530 < 38.70 -19070 1859 < 117.1 < 109.3 2568 2039 Indicator Mean 10642 1145 2568 2039 Control Mean 14280 1559 COLLECTION LOCATION DATE Th-228
*----------r. ;'.f:>--
Th-232
---------- (-+1-r--
08 04108.121 < 97.18 < 297.7 09A" 04108!21 218.4 113.2 < 352.2 11 041081'21 809.0 132.4 824.3 196.6 08 10/06.121 89.72 70.21 <: 193.8 09A" 10106.121 198.1 109.6 < 292.7 11 1DJ06/21 1373 243.4 1687 23M Indicator Mei!lf'I 757.2 148.7 1256 217.3 Control Mean 208.3 111.4 (a) Sr-89190 analyses prnfarmod anrrnatl~r.. ~ Control llocatioo, Background locati,cm 55
TABLE.3-14 Sh,arcllno Soll (pCl/kg dP; wt.) LOCATIONS COLLECTION LOCATION DATE Sr--89 Sr~0 K-40 CS-134.. Cs-131" Ra-226
*******************- ******************m-** ***************-*******
(+/-) (+l-) OS 04to8l21 (a) (a) 1388 412.8 < 35.98 < 32..25 873.6 531.2 OS 10/'06.i':21 < 816.0 < 47.50 < 1063.0 < 45.71 < 37.80 < 999.3 Mflan 1388 412.8 873.6 531.2 COLLECTION LOCATION DATE Th-228 Th-232
-----~------(+",:) _____
04l08!21 79.56 46.91 < 139.0 10l06l21 < 103.4 < 222.0 Moan 79.56 46.91 ,. LLD fdentln0d on OOCM ,(a) Sr-89tl'JO ana~-sos porfarmod annually. 56
TABLE3-15 Fish (pCl,'kg wol v/.1..) COILLl::CTION LOCATION
- Fish Typo
- DATE K-40
-------- { +(-)
- Mn-54,.
F0>-59" Ce-58'" Co-M' Zn-65' 08 (a.) 051()5.12:1 1704 658.5 < 49.68 <91-136 < 52.48 < 46.44 < 77.56 (b) 051()5.121 1458 6H!i.3 < 43.70 < 54.38 < 50.98 < 45.96 < 76.,94 (a) 11f01/21 1044 495.9 < 41.82 < 84.78 < 40.00 <M>.78 < 85.08 (b) 11/0112:1 1238 673.5 < 46.08 < 75.88 < 43.63 < 42.77 < 84.00 25** (a) 05/111'21 1436 859.0 < 68.35 < 1147.D < 00.70 < 78.90 < 153.7 (b) 05/111'21 1055 657.0 < 55.23 < 128.7 < 52.39 < 73-44 < 112.6 (a) 11f05/21 800.1 3611.1 < 25.00 < 50.26 < 24.29 < 27.18 < 52.30 (b} 11/05121 381.9 315.8 < 25.76 < 50.22 < 21.75 < 24.85 < 51.28 Moan 114'1 579.9 htd!cator Moan 1351 6111.6 Control Moan 920.3 548..2 COLLECTION _____DATE LOCATJOIN Os-134* Cs-137* (a) 05.r(J5/21 < 50.24 < 5:2.30 (b} 05l05121 <4L40 < 43.96 (a) 11,01!'21 < 41.24 < 44.30 (b) 11(01/21 < 45.52 < 42.82 (a) 051111'21 < 89_76 < 7(1-27 (b) 05/111.21 <51.74 < 40.BB (a) 11/05121 < 27.38 < 25.50 (b) 11t051.21 < 24.95 < 24.28 Moan lnd1icatcr Moan Control Mean
- LLD !darr.tlfla.d En ODCM
*'"Control Stallon (a) Non-bottom dwoUlng spnclos of gamo1ish.
{b) Bottom ti'lvelflng species or fish. 57
- 4. DISCUSSION OF RESULTS Data from the radiological analyses of environmental media collected during 2021 and tabulated in Section 3, are discussed below. Except for TLDs, Teledyne Brown Engineering analyzed all samples throughout the year. The procedures and specifications followed for these analyses are as required in the TBE quality assurance manuals and laboratory procedures. In addition to internal quality control measurements performed by each laboratory, they also participate in an Interlaboratory Comparison Program. Participation in this program ensures that independent checks on the precision and accuracy of the measurements of radioactive material in environmental samples are performed. The results of the Interlaboratory Comparison Programs are provided in Appendix B.
The predominant radioactivity detected throughout 2021 was that from external sources, such as fallout from nuclear weapons tests and naturally occurring radionuclides. Naturally occurring nuclides such as Be-7, K-40, Th-228 and Th-232 were detected in numerous samples. Th-228 & Th-232 results were variable and are generally at levels higher than plant related radionuclides. In the past, Cs-137, a plant related nuclide, has been detected in soil and aquatic sediment samples at levels corresponding to levels associated with fallout from nuclear weapons tests. The following is a discussion and summary of the results of the environmental measurements taken during the 2021 reporting period. 4.1 Gamma Exposure Rate A thermoluminescent dosimeter (TLD) is an inorganic crystal used to detect ambient radiation. TLDs are placed in two concentric rings around the station. The inner ring is located at the site boundary, and the outer ring is located at approximately five miles from the station. TLDs are also placed in special interest areas, such as population areas and nearby residences. Additional TLDs serve as controls. Ambient radiation comes from naturally occurring radioisotopes in the air and soil, radiation from cosmic origin, fallout from nuclear weapons testing, station effluents and direct radiation from the station. The results of the analyses are presented in Table 3-2. Figure 4-1 shows the historical trend of TLD exposure rate measurements. Control and indicator averages indicate a steady relationship. Two dosimeters made of CaF and LiF sensitive elements are deployed at each sampling location. These TLDs replaced the previously used CaSO4:Dy in Teflon TLDs in January 2001. The dose with the replacement TLDs is lower than that of the previously used TLDs. This will continue to be monitored. 58
1.0 + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ~ - SectorTLD 0.0 ..,. ..,.
~ ~C: ~C: ~C: ~C: ~C:
0
~C: qi ~C: ~C: ~C:
N <.O 00 0
&5 .-i I
.-i I '7 '7 '7 r;-i ::;l r;-i C: C: C: C: C: C: C: C: C: C: C:
(II (II (II (II (II (II (II (II (II (II (II (II
.!!? .!!? .....
(II (II (II (II (II (II Figure 4-1 TLD (mrem/Standard Month) Sector TLDs are deployed quarterly at thirty-two locations in the environs of the North Anna site. Two badges are placed at each location. The average level of these 32 sector TLD locations (two badges at each location) was 3.7 mR/standard month with a range of 1.0 to 8.0 mR/standard month. The highest quarterly average reading for any single location was obtained at location NW-29/61. This value was 6.4 mR/standard month. This location is on site on the Laydown Area north gate. Quarterly and annual TLDs are also located at twelve environmental air sampling stations. For the eleven indicator locations within 10 miles of the station the average quarterly reading was 3.0 mRJstandard month with a range of 1.3 to 5.0 mRJstandard month. The average annual reading for these locations was 1.6 mR/standard month with a range from .8 to 2.5 mR/standard month. The control location showed a quarterly average of 2.9 mR/standard month with a range of 2.3 to 4.0 mRJstandard month. Its annual reading was 1.5 mR/standard month. 10 emergency sector TLDs, which are all located onsite had a quarterly average of 4.3 mR/standard month with EPSP-9/10 having the highest quarterly average of 6.3 mR/standard month. Eight other TLDs, designated C-1 thru C-8, which were pre-operational controls, were collected quarterly from four locations. Stations C-3/4 and C-7/8 are designated controls. These had a quarterly average of 3.1 mRJ standard month, while Station C-1/2 and C-5/6 had a quarterly average of 2.4 mR/standard month with a range of 1.3 to 3.3 mR/standard month. During the pre-operational period (starting in 1977) the doses were measured between 4.3 and 8.8 mRJstandard month. 4.2 Airborne Gross Beta Results of the weekly gross beta analyses are presented in Table 3-3. A review of the historical plot in Figure 4-2, indicates gross beta activity levels have remained relatively unchanged. The drop indicated in 2009 is a function of a return to the vendor used from 1988 until 2001. Inner and outer ring monitoring locations continue to show no significant variation in measured activities (see Figure 4-3). This indicates that any station contribution is not measurable. 59
Gross beta activity found during the pre-operational and early operating period of North Anna Power Station was higher because of nuclear weapons testing. During that time, nearly 740 nuclear weapons were tested worldwide. In 1985 weapons testing ceased, and with the exception of the Chernobyl accident in 1986, airborne gross beta results have remained steady. During the preoperational period of July 1, 1974 through March 31, 1978 gross beta activities ranged from a low of0.005 pCi/m3 to a high of 0.75 pCi/m3. 0.12 0.1 - 0.08 0.06 0.04 0.02 0 .., 0 .... ~ ....0 ..-.... ....N ..,...
~-, ~ ~ ~
II) Sl X
!<'II c!:
<'II
~
-, i i -,~"' -,"'
~
0 c!:
<'II c!: c!:
-, <'II c!: c!: c!: c!:
- Control - Indicator Average Pre-Op - - Required LLD Figure 4-2 Historical Gross Beta in Air Particulates 3 .00E r - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
2.SOE + - - - - - - - - - - - - - - - - - ----1t- - - - - - ----..-- 5.00E + - - - - - - - - - - - - - - - - - - - - - - - - - - - -
~ Control - Indicator Figure 4-3 2021 Gross B eta in Air Particulates (pCilm 3) 60
4.3 Airborne Radioiodine Charcoal cartridges are used to collect airborne radioiodine. Once a week the samples are collected and analyzed. The results of the analyses are presented in Table 3-4. These results are similar to pre-operational data and the results of samples taken prior to and after the 1986 accident in the Soviet Union at Chernobyl and the effect of the Fukushima Daiichi event. 4.4 Air Particulate Gamma The air particulate filters that are utilized for the weekly gross beta analyses are composited by location and analyzed quarterly by gamma spectroscopy. The results are listed in Table 3-5 . The results indicate the presence of naturally occurring Be-7, which is produced by cosmic processes. Examination of pre-operational data indicates comparable measurements of Be-7, as would be expected. The results of these analyses indicate the lack of station effects on the environment.
- 4. 5 Air Particulate Strontium Strontium-89 and 90 analyses are performed on the second quarter composites of air particulate filters from all monitoring stations. There has been no detection of these fission products at any of the indicator or control stations in recent years.
4.6 Soil Soil samples, which are collected every three years from twelve stations, were not due to be collected during the reporting period.
- 4. 7 Precipitation A sample ofrain water was collected monthly, when available, at on-site station OlA and analyzed for gross beta activity and H-3. The results are presented in Table 3-7. Eleven precipitation samples were obtained in 2021. There was insufficient volume to obtain a sample in May 2021. In December 2021, a sample was obtained but the available sample volume was only sufficient to perform tritium analysis. The gross beta analysis was not completed for the December 2021 sample. Semi-annual composites are prepared and analyzed for gamma emitting isotopes in accordance with program requirements. No plant related isotopes were reported in any precipitation water sample at the indicator location.
Naturally occurring gamma emitting radioisotopes were not detected. No positive H-3 result was reported. During the pre-operational period gross beta activity in rain water was expressed in nCi per square meter of the collector surface, thus a direct comparison cannot be made to the 2021 period. During the pre-operational period, tritium was measured in over half of the few quarterly composites made. This tritium activity ranged from 100 to 330 pCi/liter. 4.8 CowMilk Milk samples were unavailable during the reporting period due to the closure of the final operating dairy within the sampling area on 1/1/ 18. 61
4.9 Food Products and Vegetation Food/vegetation samples were collected from five locations and analyzed by gamma spectroscopy. The results of the analyses are presented in Table 3-9. Low levels of Cs-137, attributable to fallout, have been seen periodically in vegetation samples. As expected, naturally occurring potassium-40 and cosmogenic beryllium-? were detected in most samples, naturally occurring thorium-228 and thorium-232 were detected in some samples. No plant related isotopes were identified in any vegetation sample during 2021. 4.10 Well Water Water was sampled quarterly from the onsite well at the metrology laboratory. These samples were analyzed for gamma radiation and for tritium. The second quarter sample was analyzed by vendor for Sr-89, Sr-90, H-3 , I-131 , and gamma emitters. The results of these analyses are presented in Table 3-10. No plant related isotopes were detected. No gamma emitting isotopes were detected during the pre-operational period. 4.11 River Water Samples of water from the North Anna River were collected monthly. The analyses are presented in Table 3-11. All monthly samples are analyzed by gamma spectroscopy. The monthly samples are composited quarterly and analyzed for tritium. Additionally, the second quarter samples are analyzed for strontium-89 and strontium-90 in accordance with program requirements . There has been no detection of these fission products at any of the indicator or control stations in recent years. No gamma emitting radioisotopes were positively identified in any of the samples. There was no measured activity of strontium-89 or strontium-90. Tritium was measured in all four samples with an average annual concentration of 2610 pCi/liter and a range of 1580 to 4030 pCi/liter , see Figure 4-4. No river water samples were collected during the pre-operational period. River Water 5500 5000 4500 4000
.:::, 3500 ~ Tritium
~ 3000 - Required LLD 2500 2000 1500 1000 Figure 4-4 Tritium in River water 62
4.12 Surface Water Samples of surface water were collected monthly from two stations, an indicator station located at the discharge lagoon and a control station located 12.9 miles WNW. The samples were analyzed by gamma spectroscopy and for iodine-131 by radiochemical separation. A quarterly composite from each station was prepared and analyzed for tritium. Additionally, the second quarter samples are analyzed for strontium-89 and strontium-90. There has been no positive indication of these fission products at any of the indicator or control stations in recent years. The results are presented in Table 3-12. No non-naturally occurring gamma emitting radioisotopes, including iodine were detected in any of the samples. Tritium was not detected in any sample at the control location. The average level of tritium activity at the indicator location was 2658 pCi/L with a range of 2110 to 3570 pCi/L. 8000 7000 6000 5000 n l 4000 I
- - Tritium su " I I
u I '., l I I I Ill M 111 I
- I I ' - Required LLD 3008° I ~' I I
~ I I "\
,I ~
Ill I 2000 : II ,, IA I I I: I u - I . II I I 1000 Ml f II I - 0 ,..._ a, ,..._ ,..._ a,
~
U)
- ~
0 N OJ I") N t-;-
,..._ 'r" OJ It)
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'r" c;> ~
It) c;> c;> 0 'r" c "".!. c OJo,
'r" U)
'r" 'r" 0
~
N N It) N
.,C .!. >- .,"5 u 0 .0 >- .,"5 '
Q. > .0 C Q. > 0G) .!. z ., ::? ., ~ u
~
<<I <<I <<I GI G) <<I G) 0 G) ~ GI 0 <<I <<I ~ < Meat Milch Milch Boundary 50m 2) Animal Cow Goat N 0.87 1.3 2.75 NONE NONE NONE NNE 0.85 0.9 3.25 1.6 NONE NONE NE 0.82 0.9 1.6 1.6 NONE NONE ENE 0.81 2.37 2.4 2.49 NONE NONE E 0.83 1.25 2.05 3.5 NONE NONE ESE 0.85 1.7 1.7 NONE NONE NONE SE 0.88 1.4 1.4 1.4 NONE NONE SSE 0.91 1.0 2.66 1.6 NONE NONE s 0.94 1.03 1.48 2.0 NONE NONE SSW 1.01 1.11 2.00 2.0 NONE NONE SW 1.06 1.65 3.96 NONE NONE NONE WSW 1.09 1.62 2.26 NONE NONE NONE w 1.06 1.5 1.93 NONE NONE NONE WNW 1.02 1.1 2.67 NONE NONE NONE NW 0.97 0.98 1.09 NONE NONE NONE NNW 0.90 1.0 1.33 2.3 NONE NONE 70
2020 to 2021 Land Use Census Changes 2020 2021 Nearest Direction Distance Distance Resident SSW 1.27 1.11 Site Boundary NONE Garden E 1.75 2.05 WSW 1.77 2.26 Meat Animal N 4.03 NONE WNW 4.98 NONE Milch Cow NONE Milch Goat NONE 71
APPENDIX B:
SUMMARY
OF INTERLABORATORY COMPARISONS YEAR2021 72
Summary of Results- Inter-laboratory Comparison Program (ICP) The TSE Laboratory analyzed Performance Evaluation {PE) samples of air particulate (AP), air iodine, milk, soil, vegetation, and water matrices for various analytes. The PE samples supplied by Analytics lnc., Environmental Resource Associates (ERA) and Department of Energy (DOE) Mixed Analyte Performance Evaluation Program (MAPEP), were evaluated against the following pre-set acceptance criteria: A. Analytics Evaluation Criteria Analytics' evaluation report provides a ratio of TB E's result and Analytics' known value. Since flag values are not assigned by Analytics, TBE evaluates the reported ratios based on internal QC requirements based on the DOE Jv1APEP criteria.
- 8. ERA Evaluation Criteria ERA's evaluation report provides an acceptance range for control and warning limits with associated flag values. ERA's acceptance limits are established per the US EPA, National I Environmental Laboratory Accreditation Conference (NELAC), state-specific Performance Testing (PT) program requirements or ERA's SOP for the Generation of Performance Acceptance Limits, as applicable. The acceptance limits are either determined by a regression equation specific to each analyte or a fixed percentage limit promulgated under the appropriate regulatory document.
C. DOE Evaluation Criteria MAPEP's evaluation report provides an acceptance range v.;jth associated flag values. J*"1APEP defines three levels of performance:
- Acceptable (flag = "A") - result v,ithin +/- 20% of the reference value
- Acceptable with Warning (flag = VI/) - result falls in the +/- 20% to +/- 30% of the reference value
- Not Acceptable (flag = "N") - bias is greater than 30% of the reference value Note: The Department of Energy (DOE) Mixed Analyte Performance Evaluation Program (MAPEP) samples are created to mimic conditions found at DOE sites which do not resemble typical environmental samples obtained at commercial nuclear power facilities.
For the TBE laboratory, 146 out of 154 analyses performed met the specified acceptance criteria. Seven analyses did not meet the specified acceptance criteria and were addressed through the TSE Corrective Action Program. NOTE: One analysis (soil for Tc-99) that did not meet acceptance criteria was performed for TBE information and is not on the list of required ICP analyses. A summary is found below:
- 1. The ERA MRAD March 2021 \1\/ater Fe-55 result was evaluated as Not Acceptable. The reported value for Fe-55 was 579 pCi/L and the known result was 275 pCi!L (acceptance range 162-400). When reviewing the original sample data, it was found that the carrier yield was 52.6% (lower than typical water samples). Looking at the etched plate that was counted, it appeared that some loss of sample could have occurred. The sample was logged for reanalysis and used as the workgroup duplicate. The results were acceptable at 197 and 221 respectively. Yields were 97.4% and 105.7% and the plated samples wer,e centered with no apparent loss of sample. The loss of sample during plating resulted in a low yield which produced an artificially high sample result. (NCR 21-01) 73
- 2. The MAPEP February 2021 AP Gross Alpha result was evaluated as Not Acceptable. The reported value was 0.371 Bq/sample and the known result was 1.77 Bq/sample (acceptance range 0.53 - 3.01 ). A similar failure had occurred several years prior due to the filter being placed with the wrong side up on the detector. At that time, a small dot was placed on the top of the filter prior to removal from the package to indicate the correct side for counting. The current sample was still in the detector when the result was received (dot side facing the detector). The sample was recounted with a similar result and was flipped and recounted. The flipped result was 0.661 Bq/sample, within the acceptable range. Because TBE cannot rely on receiving correct packaging from the provider, MAPEP AP cross-checks will be counted on both sides going fon.,vard. NOTE: The August sample had the same packaging issue (upside down). (NCR 21-02)
- 3. The MAPEP February 2021 soil Ni-63 was evaluated as Not Acceptable. The reported value was 310 Bqlkg and the known result was 689 {acceptance range 482 -896). All workgroup QC was reviewed with no anomalies. The analytical procedure had been revised prior to this analysis to eliminate added interferences. The sample yield was
>100%, indicative of incomplete separation from interferences, leading to a lower result.
The procedure was again revised after acceptable results were obtained. (NCR 21-03)
- 4. The ERA October 2021 \Vater Gross Beta result was evaluated as Not Acceptable. The reported value was 63.0 pCi/L and the known was 55.7 (acceptance range 38.1 - 62.6) or 113% of the knmvn. The 2-sigma error was 6.8, placing the reported result well within the acceptable range. All QA was reviewed with no anomalies. A follow-up Quick Response cross-check was analyzed with a 120% ratio (see item 7). (NCR 21-10)
- 5. The ERA October 2021 water Tritium result was evaluated as Not Acceptable. The reported value was 13,800 pCi/L and the known was 17,200 (acceptance range 15,000 -
18,900). The 2-sigma error was 1,430, placing the result within the acceptable range. TBE's internal QC acceptance is 70% - 130%, while ERA's for this sample was 87% - 110%. All QA was reviewed with no anomalies. A Quick Response follow-up cross-check was analyzed with a result of 17,500 pCi/L (known 17,800 pCi/L). (NCR 21-11)
- 6. The MAPEP August 2021 soil Ni-63 result was evaluated as Not Acceptable. The reported value was 546 Bq/kg and the known result was 1,280 Bq/kg (acceptance range 896 - 1,664). All QC was reviewed and no anomalies found. The procedure revision to remove added MAPAP interferences was ineffective for this sample. No client soil matrix samples were analyzed for Ni-63 in 2020 or 2021. The root cause investigation is still ongoing at this time. (NCR 21-13)
- 7. The ERA December 2021 Quick Response water Gross Beta result was evaluated as Not Acceptable. The reported value was 47.6 pCi/L and the known was 39.8 pCi/L or 120% of the known (acceptance range of 26.4- 47.3). The 2-sigma error was 6.1, placing the reported result well within the acceptable range. All QA was reviewed ,,vith no anomalies.
The original sample was recounted on a different detector with a result of 40.3 +/- 6.27 pCi/L. The "failure" of this sample and the RAD-127 was due to the narrow upper acceptance ranges assigned (119% and 112%) (NCR 21-14) The Inter-Laboratory Comparison Program provides evidence of "in contro1'1 counting systems and methods, and that the laboratories are producing accurate and reliable data. 74
Analytics Environmental Radioactivity Cross Check Program Teled1'ne Brown EnSineer1na Environmental Services TBE ld-entifi031ion Known Ra'lio ofTBE to Month.'Year Matrix Nuclide Units Reported Evaluation IJIJ Number Value l3 l Analytics Result Valu-e September 2021 E13472 Milk Sr-89 pCi/L 66.4 85.4 D.78 w Sr-90 pCi/L 11.9 14.0 D.85 A E13473 Milk Ce-141 pCi/L 118 114 1.03 A Co-58 pCiJL 116 118 D.98 A Co-60 pCiiL !42 145 D.. 98 A Cr-51 pCi.11... 244 236 1.03 A Cs-134 pCi.11... 81 93.1 D.87 A Cs-137 pCiJL 111o 112 D.94 A Fe--59 pCiJL 105 102 1.03 A l-131 pCiJL 65.1 85.6 D.76 w Mn-54 pCill... U28 128 1.00 A Zn-65 pCi.iL. UEiS 153 1.03 A EU3474 Charcoal l-131 pCi ,B5.2 90.9 0.94 A E,3475 AP Ce-141 pCi 126 135 0.94 A Co-58 pCi 14B 139 1.07 A Co-60 pCi 183 171 1.07 A Cr-51 pCi 322 278 1.16 A Cs-134 pCi UHi 110 1.08 A Cs-137 pCi 147 132 1.12 A Fe--59 pCi 131 12D 1.09 A Mn-54 pCi 161 151 1.06 A Zn-65 pCi 2D2 180 1.12 A EU347,6 Soil Ci!-141 pCi/g 0.215 0.219 D.98 A Co-58 pCi/g 0.208 0.226 0.92 A Co-60 pCi.lg 0.277 0.277 1.00 A Cr-51 pCi/g D.388 0.452 D.86 A Cs-134 pCi!g a0.157 0.178 D.88 A Cs--137 pCi/g D.270 0.2B4 IUl5 A Fe-59 pCilg D.218 O.Hl5 1.12 A Mn-54 pCilg D.239 0.246 D.97 A Zn-65 pCifg D.312 0.2ll3 1.06 A E;3477 AP Sr-89 pCi 85.6 68.3 1.25 *w Sr-90 pCi 12.6 11.2 1.13 A (a) Jbe Anat'Jfl'cs .lmawn 1-afue i:; equal to 100% of the paramete,-present in the r.tandard a:; d;;!emlmed by gra'l'imemL" arnVct" vdWneltfcm~~ madedwmg3fandam p-r..paration (bJ AnafySc.:; e1rafU2f.oo ba:i<<I 01l 7BE intemal QC limz: A = A.ccepfab(e - repolfed IMldt faJF:; l\l'Ylin rafu f.mifs of 0.00-1.20 W =Acceptable .-.:it.fl 11-amir:g -rq;orted ~wt falls *Mth.'n 0.70-0.80 or 1.20-1.30 fl= Mal Aoceptal:i'e-~atedresLl't fails out:;ide Ble ra5o limits of< 0.7D ;;r.d > 1_30 75
Analytics Environmental Radioactivity Cross Check Program Teledyne Brown En£1ineerina Environmental Services TBE Knc,m Identification Ratio ofTBE to MonthlYear Matrix Nuclide Units Reported Evaluation (Ill Number Valuer,,) Analytics Result Value September 2021 Ei3472 Milk Sr-89 pCiiL 66.4 85.4 D.78 w Sr-90 pCi!L 11.9 14.0 D.85 A E13473 Milk Ce-141 pCilL 118 114 1.03 A Co-58 pCilL 116 118 D.98 A Co-60 pCi.*1. 142 145 D.98 A Cr-51 pCiil. 244 236 1.03 A Cs-134 pCiJ1.. 81 93.1 D.87 A Cs-137 pCi.il!.. ms 112 D.94 A Fe-59 pCi.'1!.. 1 -5 102 1.03 A 1-131 pCul!.. 65.1 85.6 0.76 w Mn-54 pCi.11.. 128 128 1.0D A Zn-65 pCi.*1.. 158 153 1.03 A E13474 Ch;;rco;;I 1-131 pCi 852 90.9 D.94 A E'l3475 AP Ce-141 pCi 126 135 D.94 A Co--58 pCi 'l48 139 1.07 A Co-60 pCl 183 171 1.07 A Cr-51 pCi 322 278 1.16 A Cs-134 pCi na HD 1.08 A Cs-137 pCi 147 132 U2 A Fe-59 pCi 131 120 1.09 A Mn-54 pCi 161 151 1.06 A Zn-135 pCi 2D2 18D 1.12 A E13476 Soil Ce-141 pCilg 0.215 02.19 D.98 A Co-58 pCilg 0.208 0.226 D.92 A Co-60 pCiig D.277 0-277 1.00 A Cr-51 pCi.lg D.32,B 0.452 D.88 A Cs-1134 pCil,g [U57 0.178 D.88 A Cs-137 pCilg 0270 0284 D.95 A Fe-59 pCilg D.218 0.195 1.12 A Mn-54 pCiig *.23.Q 0246 1Ul7 A Zn-135 pCilg D.312 0.293 1.()6 A E,3477 AP Sr-89 pCi 85.6 68.3 1.25 w Sr-90 pCi 12.6 n.2 1.13 A (a) The Ana/yfros kno-11n \*afue ls equal to 100% of the param.-ter J:1'!:senf ill the sfandaro' ci;S da!emlined b}* g.ra1~ andk,*
~*o.lwnetlic measu,'l:m211t:s mad.: dUJing :stano'arr.f p,'~aralk;,ri (b) Anafyfus evaftEtion ba:i.:e' an 1BE fnlerm,1 QC Jim'.!:;:
A = A.xeptable -repori~ =l.ift fafJs wroiin ra5o /.~'ll.iis of 0.60-1.2' a. W = Acei?pf.ab/e v,fJi 1,*.miing- rq;oded resuJtfai?s wiihfn 70-0. SO or 1.2(!'-f.SD N = Not Acx:ept;;l;/e - rq;cded result falls oufaio'e the ratio limi'.s of< (J.70 ..nd > 1.30 76
DOE's Mixed Analyte Peliormance Evaluation Program {MAPEP) Telecl~ne Brown En11ineerin~ Environmental Services TSE Identification Kno\"l!l Acceptance Monthi'Year Matrix Nuclide Units Reported Value(~) Evaluation O>l Number Range Value February 2D2 i 21-GrF44 AP Gross Alpha Bq/sample 0.371 1.77 0.53- 3.01 N(!l Gross Beta Sq/sample 0.731 0.65 D.325 - 0.974 A 21-MaS44 Sorn Ni-63 Bqlkg 310 689.0 482-896 N"...*' Tc-99 Bq1t.g 457 638 447-829 w 21-MaSIJ44 Urine Cs-134 Bq,'L 2.34 2.73 1.91-3.55 A Cs-137 Bq/L 2!:-4 2.71 1.9'0- 3.52 A Co-57 Bq/L D.4100 (1) A Co-60 Bq,'L 224 244 1-71-3.17 A Mn-54 Bq/L 2.03 203 1.42-2.64 A K-40 Bq/L 52.8 54.0 38-70 A U-234 Bq,'L 0.108 0.0877 0.0614 - 0.114 w U-238 Bq/L 0.101 D.091 D.064 - 0.1 18 A Zn-e5 Bq/L 1.06 1.34 (2) A 21-MaW44 V,'a1e:r Ni~63 Bq/L 6.7 8.2 5.7 - -rn.7 A Tc-99 Bq/L 3.850 4.01 2.81- 5.21 A 21-RdV44 Vegetation Cs-134 Sq/sample 3.13 3.00 2.5-4.7 A Cs-137 Bq/sample 4.64 4.69 3.28- 6.10 A Co--57 Sq/sample 5.25 5.05 3.54-6.57 A co-ea, Sq/sample 2.86 2_9,9 2.D,9-3.89 A Mn-54 Sq/sample 5.02 5.25 3.6-B-6.83 A Sir-9 1 Sq/sample 0.631 0.673 0.471 - 0.875 A Zn--65 Sq/sample -0.233 (1) A Ar.Jgust 2{]21 21-G,F45 .Af> Gross Alpha Sq/sample 0.368 0.96,!J 0.28,8- U32 A Gross Seta Sq/sample 0.595 11553 0.277 - 0.830 A 21-MaS45 S,:iill Ni-fl3 Bqikg 546 1280 896 - 1664 11-1'-"' Tc-99 Sq.,t,;g 453 777 544-1010 N'"' 21-MaSU45 llJl'in.! Cs-134 Bq/L 3.10 3.62 2.53-4.7, A Cs-,37 Bqi'L 0.083 (1) A Co--57 Bg,'L 0.844 0.87 0.6D-El- 1.125 A Co-60 Bq/L 0.0535 (1) A Mn-!:4 Bg,'L 0.459 0.417 (2) A IK-40 Bq/L 48.8 54.0 38-7,0 A llJ-234 Bq,'L 0.133 0.116 0.08,1 - 0.151 A U-23S Bq,'L 0.137 0.121 0.085 - 0.157 A Zn.-65 Bq/L 0.339 0.42,[J (2) A 21-MaW'45 'l;'h.i.~er Nr-fl3 Bq,'L 33.5 3g.5 27.7 - 51.4 A Tc,-{J9 Bq/L 3.5 3.7 2.610,-4.82 A 21-RdV45 Ve-ae-ta'lion Cs-il34 Sqisample 3.42 4.34 3JJ4-5.64 1,'~f Cs-i137 Sq/sample 2.14 2.21 1.55-2.87 A Co--57 Sq/sample 4.08 4.eB 3-28-6.06 A Co-6D Sq/sample 281 3.51 2.4t!-4.5*3 A Mn-!:4 Sqisample 0.035 (1) A Srr0 9* Sq/sample 1.15 1.32{1 0.92-1.72 A Zn-65 Sq/sample 205 2.43 1.70-3.16 A (a.t l?Je IMPEP rmoll'li* 1<a.f!ie Is e-q.:.1ii1J ro 1i!iO~~ or rm, parame!e.r p.'e:.em .11 tm;- srar.t:ran:t as Cfe!erm!Jle~ by gr.n!me:r.c 2r,a:.1:r*,-c,*.:imeirn: measuRmer,t5 me1-:re rtunng mincraro :xeparaw.m (Oj D*OEfMAPEP e*,a,*.:ia!fO!I:
=
A Acce.o!'i!h'e -te[>'Jttea riStJ.I! ta.I'S l'l!Thlll r.m, .1.!!il.ts ct o.eo-1.20 w=Mcepta.!l,'e *~*,'Il 11,am!llg-rep,:,,rte-.1,ra:.:itt J'al1S !1,",Vi,'11 o. 70-IUO or 1.20-1.30
=
u No! Acceptaaie - nponf{f n:11,'t J'alf:7 c.:ir.r.~e tt.e rat'iJ ,'lli'!l'!s ,of ... o. 70 an~ .. 1..;;a, (11 Far~e posmve ten
~J S-ern;tt,Y/1}' eva/L'ill:11 (3) see NCR 21-02 (4) see NCR 21*03 (5) See NCR 21-13 10). Tc,-oii Cf.9$S*~ll~ts_ctgn!, for TBE lnf"!J'llaJ.'Oll Q/1!/' - Q.Of '!!G'lllre-t_
77
ERA Environmental Radioactivity Cross Check Program Teled~ne Brown Enaineerin~ Environmental Services TBE ldemificalion Known Aoc:eptance MooihlYear Matrix Nuclide Units Repcrted Evaluation Jbl Number Value(*) Limits Value March 2021 MRAD-34 Water Am-241 pCi/L 175 157 108-201 A Fe-55 pCilL 579 275 162-40 tf,'l Pu-23B pCi/L 1B1 171 1D3-222 A Pu-239 pCi/L 153 142 87.9-175 A Soil Sr-90 pCilkg 6570 9i9D 2860 - 14,31JD A Af' Fe-55 pCilliller 107 121 44.2-193 A U-234 pCii'lilter 25.99 25.5 18.9-29.9 A U-238 pCii'lilier 24.7 25.3 19.1- 30.2 A ApriI2D21 RAD-125 'Nater 8.;,-133 pCi,'1. 92.3 90.5 76.2-99.6 A Cs-134 pCi1L 62.9 70..5 57.5-77.6 A Cs-137 pCiiL 161 168 151 -187 A Co-60 pCi.'L 22.5 2D.9 17.7-25.8 A Zn-65 pCi/l 1B3 177.0 159-.208 A GR-A pCill 30.8 3.2 15.4-39.4 A GR-8 pCi/l eo.11 67..5 46.8-74.2 A U-Nat pCilL 36.45 36.9 30.0-40.8 A H-3 pCL'L 1l,40 14,6 0 12,S"DO - 16, HJ[] A Sr-89 pCi.'L 64.5 63.5 51.4- 71.5 A Sr-90 pCilL 22.8 23.0 16.5-27.0 A l-131 pCL'L 28.2 28.7 22.2-31.4 A Sep1<=ll"ber 2021 MRAD~ 'l\l'ater Am-241 pCL'L ea 63.7 43.7-811.5 A Fe-55 pCi.'L ;79 246 ,45-358 A Pu-23B pCi.'L i02 114 68.5-1148 A Pu-2.39 pCilll.. 32 34.3 21.2-42.3 A Soil Sr-90 pCilkg 616 6090 1,90 - 9.49 A Af' Fe-55 pCilliJter 493 548 20-874 A Pu-238 pCii'lilier 28 28.5 21.5-35.0 A Pu-239 pCii'liJter 21 21.6 1t'U -26.1 A 11.J-234 pCii'liJter 7.95 7.76 5.75-!H19 A ILJ-238 pC-u'lilier ,B.!J 7.69 5.811-9.17 A Oct-ober2Q1 P.AD-127 1Nater Ba-133 pCi.'L 82.8 87.5 7llc6-96.2 A Cs-134 pCi.'L 84.0 70.1 57.1 -77.i A Cs-137 pCi/L 145 156 1140-174 A Co-80 pCilL 83.2 85.Q 77.3-96.8 A Zn-65 pCrJL 133 145 1130- 171 A GR-A pC~'L 76.0 66.7 35.0-82.5 A GR-8 pCL'L 63.0 55.7 3a._1 -62.6 !{-'! U-Nat pCi.'l 52118 ,.s.5 45,.3-61.11 A H-3 pCi.'L 13.80D 17,21]0 15,0D0-18,9, rf'l Sr-89 pCi/l 54.9 61.0 49.i-68.9 A Sr-90 pCi.'L 24.8 29.3 21.3-34.0 A l-131 pCilL 27.4 26.4 21.9-31.11 A Decerr.ber 2021 QR i2Dil21Y 'Nater GR-B pCi!L 47.6 39.,B 26.4-47.3 r-ri H-3 pCilll.. 17.501} 17,800 15,60 - 19.6 0 A (a) ~ ERA Jm:w,n ~.;,!:re rs~ to 100% cf the param:ter p.rese/i'! in !he :;randam as a't=ferrnined by grai'ID!elrfa a11ii>'cncil!.TIEiic rmasurem~ made a'tri;g sifY.ield p,'E!paration. (tJ) ffi4 e,ioa'uation: A =A<<eptat..'a -Reported va.rue fal'.l:; 1*&iui the A~tanoe Um't:i N =N~ Acce¢=!;,'e - Rep-;r.ed value fa!}:; outside cf the Accepla.D.,-e Lm~s (1) See NCR 21-01 (2} See NCR 21-10 (3) See NCR 21-11 (4) See NCR 21-14 78}}