ML20136A405
| ML20136A405 | |
| Person / Time | |
|---|---|
| Site: | Surry, 07200002, 07200055  (DPR-032, DPR-037, SNM-2501) |
| Issue date: | 04/27/2020 |
| From: | Denise Wilson Virginia Electric & Power Co (VEPCO) |
| To: | Document Control Desk, Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation |
| References | |
| 20-154 | |
| Download: ML20136A405 (73) | |
Text
VIRGINIA ELECTRJC AND POWER COMPANY RICHMOND, VIRGINIA 23261 APR 2 7 2020 United States Nuclea.r Regulatory Commission Attention: Document Control Desk Washington, DC 20555~0001 VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNITS 1 AND 2 INDEPENDENT SPENT r=UEL STORAGE INSTALLATION Serial No.
S&L/JWD Docket Nos.
License Nos.20-154 RO 50-280 50-281 72-2 72-55 DPR-32 DPR-37 SNM-2501 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT Surry Units 1 and 2 Technical Specification 6.6.B.2 requires the submittal of an Annual Radiological Environmental Operating Report (AREOR) for Surry Power Station. Surry Independent Spent Fuel Storage Installation (ISFSI) Technical. Specification Appendix C, Item 1.3.1 requires that the Surry ISFSI be included in the environmental monitoring for Surry Power Station. Accordingly, enclosed is the Surry Power Station AREOR for the period of January 1, 2019 through December 31, 2019, which includes environmental monitoring for the Surry ISFSI.
If you have any further questions, please contact William Terrry at 757~365-2010.
Sincerely, David H. Wilson Director Safety & Licensing Surry Power Station Attachment Commitments made in this letter: None 7-EZ.S
- v;V/ S52-c;o
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- v1ySS
cc:
U. S. Nuclear Regulatory Commission Region II Marquis One Tower 245 Peachtree Center Ave., NE Suite 1200 Atlanta, Georgia 30303-1257 Director, Nuclear Material Safety and Safeguards U. S. Nuclear Regulatory Commission Washington, D. C. 20555-0001 NRC Senior Resident Inspector Surry Power Station Director, Virginia Health Department Division of Radiological Health 109 Governor Street, Room 730 Richmond, Virginia 23219 Serial No.20-154 Docket Nos.: 50-280 50-281 72-2 72-55
ATTACHMENT 1 Serial No.20-154 Docket Nos.: 50-280 50-281 72-2 72-55 2019 Annual Radiological Environmental Operating Report SURRY POWER STATION UNITS 1 AND 2 VIRGINIA ELECTRIC AND POWER COMPANY
Dominion Energy Surry Power Station Radiological Environmental Monitoring Program January 1, 2019 to December 31, 2019
Annual Radiological Environmental Operating Report Surry Power Station January 1, 2019 to December 31, 2019 Prepared by: __ 1
..,...!Z_"-"'-'"".A..;V=-* ~fM~*-f..,_~_,_.~A~:~ott,~(~_,_;_/J_,_._ ___ _
Health Physicist Reviewed by: _1'--'--WA~'Sc----"-~--"--.~-'-----.. _* _* ~*
---zJ R.Schau Supervisor Radiological Analysis Reviewed by: -----~i'-"--'---~----------
J. R. Hopkins Sup rintendent Health Physics Technical Services Approved by: ____ ___,,_/0?*
_* -+--,~-~-------~*--
~
'w.erry Manager Radiologic rotection and Chemistry
Table of Contents PREFACE.............................................................................................................................................. 4
- 1. EXECUTIVE
SUMMARY
....... :........................ -.............................................................................. 5
- 2. PROGRAM DESCRIPTION............................................................................................................ 7 2.1 Introduction............................................................................................................................. 7 2.2 Sampling and Analysis Program............................................................................................. 8
- 3. ANALYTICAL RESULTS............................................................................................................ 20 3.1 Summary of Results.............................................................................................................. 20 3.2 Analytical Results of2019 REMP Samples......................................................................... 28
- 4.
DISCUSSION OF RESULTS..................................................................................................... 49 4.1 Gamma Exposure Rate......................................................................................................... 50 4.2 Airborne Gross Beta............................................................................................................. 50 4.3 Airborne Radioiodine............................................................................................................ 52 4.4 Air Particulate Gamma......................................................................................................... 52 4.5 Animal Milk.......................................................................................................................... 52 4.6 Food Products.......................................,:.. ~.....................................-....................................... 53 4.7 Well Water......... :.................. :............-........................................... *........................................ 53 4.8 RiverWater..........................................-.................................................................................. 53 4.9 Silt.........................................................................,......................... _...................................... 54 4.10 Shoreline Sediment.......................... _...*.....-..,......,............................. _.................................... 56 4.11 Fish................,................................ ;..":.. :.~*.... ;_...................... :.................................... ;:..-......... 56 4.12 Oysters....................................... :.....-:,...... *........................ :.................................................. 56 4.13 Clams.................... :................... :.......-'................. ;................................................................ 56 4.14 Crabs................................................................................................................................... 56
- 5. PROGRAM EXCEPTIONS........................................................................................................... 57
- 6. CONCLUSIONS.............................................................................................................. '............... 58 REFERENCES.................................................................................................................................... 60 APPENDICES............. :....................................................................................................................... 62 APPENDIX A: LAND USE CENSUS........................................................................................... 63 APPENDIX B:
SUMMARY
OF INTERLABORATORY COMPARISONS............................... 65 3
PREFACE This report is submitted as required by Technical Specification 6.6.B.2, Annual Radiological Environment Operating Report, for Surry, Units 1 and 2, Virginia Electric and Power Company Docket Nos. 50-280
- and 50-281, and the Surry Independent Spent Fuel Storage Installation (ISFSI) Technical Specifications, Appendix C, Iterri 1.3.1.
4
- 1. EXECUTIVE
SUMMARY
This document is a detailed:_,report of the 2019 Surry Power Station Radiological Environmental Monitoring.Program (REMP). Radioactivity levels from January 1 through December 31, 2019, in air, water, silt, shoreline sediment, milk, aquatic biota, food products and direct exposure pathways have been analyzed, evaluated and summarized.
The REMP is designed to confirm that radiological effluent releases are As Low As (is) 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 20-mile radius of the station. Surry Power Station 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. The first type, control samples, is collected from areas that are beyond the measurable influence of Surry Power Station or any other nuclear facility. These samples represent normal background radiation levels. Background radiation levels 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 control sample values and the pre-operational baseline to determine if changes in radioactivity levels are attributable to station operations, or natural variation, or other causes such as the Chernobyl and Fukushima Daiichi accidents that released radioactive material to the environment.
Teledyne Brown Engineering, Inc. (TBE) provides radioanalyses for this program and Mirion Technologies provides thermoluminescent dosimetry (TLD) 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 United States Nuclear Regulatory Commission (USNRC) requires that equipment used for radiological environmental monitoring must be able to detect specified minimum Lower Limits of Detection (LLDs). This ensures that analyses are as accurate as possible. The USNRC also mandates a reporting level for 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.
5
Analytical results are reported for all possible radiation exposure pathways to man.
These pathways include airborne, aquatic, terrestrial and direct radiation exposure.
The airborne exposure pathway includes radioactive airborne iodine and particulates. The 2019 airborne results were comparable to previous years. No station related radioactivity was detected and natural radioactivity levels remained at levels consistent with past years' results. Aquatic exposure pathway samples include well and river water, silt and shoreline sediments, crabs, fish, clams and oysters. Naturally occurring radionuclides such as beryllium-7, potassiurri-40, radium-226, thorium-228 and thorium-232 were detected at average environmental levels.
No man-made radionuclides were detected in well water. This trend is consistent throughout the operational environmental monitoring program. No man-made radionuclides were detected in river water. Silt samples indicated the presence of cesium-137 and naturally occurring radionuclides. Cesium-137 concentrations were present in indicator location samples at nominal background levels. No other man-made radionuclides were detected. These background levels are attributable
. to fallout from historic weapons testing and nuclear accidents such as Chernobyl.
Naturally occurring potassium-40,
- beryllium-7, radium-226 thorium-228 and thorium-232 were detected at average environmental levels. Shoreline sediment, which may provide a direct exposure pathway, contained no station related
- radionuclides. Naturally occurring radionuclides potassium-40, radium-226 thorium-228 and thorium-232 were detected at average environmental levels. The terrestrial exposure pathway includes milk and food products.. Iodine~ 131 was not detected iri any 2019 milk samples and has not been detected in milk prior to or since the 1986 Chernobyl accident. *strontium-90 was detected in milk and this activity is attributable to past atmospheric nuclear weapons testing. No other man-made radfonuclides were detected in milk samples. Consistent with historical data, naturally occurring potassium-AO was detected m
- milk.
No man-made I
radiortuclides were detected in food product samples. Naturally occurring potassium-40 was detected in food product samples*. The direct exposure pathway measures environmental radiation dose using TLDs. TLD results have remained relatively constant over the years.
During 2019, as in previous years, the operation of Surry Power Station has 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 2019 was 0.033 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 sources in the environment provide approximately 50% of radiation exposure to man, while nuclear power contributes less than 0.1 %. These results demonstrate compliance with federal and state regulations and also demonstrate the adequacy of radioactive effluent controls at Surry Power Station.
6
- 2. PROGRAM DESCRIPTION 2.1 Introduction This report documents the 2019 Surry Power Station operational Radiological Environmental Monitoring Program (REMP). Dominion Energy's Surry Power Station is located on the Gravel Neck peninsula adjacent to the James River, approximately 25 miles upstream of the Chesapeake Bay. 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 is designed with a nominal gross electrical output of 910 megawatts electric (MWe).
Unit 1 achieved commercial operation on December 22, 1972, and Up.it 2* on May 1, 1973.
The United States Nuclear Regulatory Commission regulations (10CFR50.34a) require that nuclear power plants be designed, constructed and operated to keep levels of radioactive material in effluents to unrestricted areas As Low As (is)
Reasonably Achievable. To ensure these criteria are met, the operating license for Surry Power Station includes T~chnical Specifications that address the release of radioactive effluents. In-plant monitoring is used to ensure that these release limits are not exceeded. As. a precaution aga.1,nst unexpected or undefined environmental processes, which might allow undue (:l,ccumulation of. radioactivity. in the environment, a progrp!Il for monitoring _the stat.ion environs_ is also included in Surry Power Station T~chnical Specifications.
Dominion personnel are responsible for ~ollecting the various indicator and control environmental samples.. Mirian Technologies is responsible for processing the TLDs.
Teledyne Brown Engineering is responsible for sample analyses. The results of the analyses are used ta..determine if changes in radioactivity levels may be attributable to station operations. Measured values are compared with control. values,* which vary with time due to external events, such as cosmic ray bombardment, nuclear weapons test fallout and seasonal variations of naturally occurring radionuclides.
Data collected prior to station operation is used to indicate the degree of natural variation to be exp~ct~d. This pre-operational data is compared with data collected during the operational phase to a,ssist in evaluating any radiological impact of station operation.
7
Occasionally, samples of environmental media may show the presence of man-made radionuclides.
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 the USNRC Regulatory Guide 4.8, "Environmental Technical Specifications for Nuclear Power Plants",
(December, 1975) and VPAP-2103S, Offsite Dose Calculation Manual (Surry). 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 REMP for 2019 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.
~ To verify that station operations have no detrimental effect on the health and safety of the public.
2.2 Sampling and Analysis Program
'i'al;>le 2-1 summarizes the 2019 sampling program for Surry Power Station. All samples listed in Table 2-1 are taken at indicator locations except those labeled "control location."
Dominion Energy personnel collect all samples listed in Table 2-1.
Table 2-2 summarizes the analysis program conducted by Teledyne Brown Engineering and Mirian Technologies for Surry Power Station., All samples, with the exception of the TLDs, are shipped to Teledyne Brown Engineering, located in Knoxville, TN, for analysis. The TLDs are shipped to Mirian Technologies, located in Irvine, CA, for processing.
The Surry Radiological Monitoring Locations maps (Figures 1 - 5) denote sample locations for Surry Power Station. The locations are color coded to designate sample types.
8
Table 2-1 SURRY - 2019 RADIOLOGICAL SAMPLING STATIONS DISTANCE AND DIRECTION FROM UNIT NO. 1 P. 1 of3 Distance Collection Sample Media Location Station Miles Direction Degrees Frequency Remarks Onsite (Stored in a lead shield outside the protected Environmental Control (00)
Quarterly area)
TLDs West North West (02) 0.2 WNW 293.0 Quarterly Site Boundary Surry Station Discharge (03) 0.4 NW 321 ° Quarterly Site Boundary North North West (04) 0.2 NNW 329° Quarterly Site Boundary North (05) 0.3 N
40 Quarterly Site Boundary North North East (06) 0.3 NNE 28° Quarterly Site Boundary North East (07) 0.3 NE 44° Quarterly Site Boundary.
East North East (08) 0.4 ENE 67° Quarterly Site Boundary East (09) 0.3 E
890 Quarterly Site Boundary
- West (10) 0.1 w
271° Quarterly Site Boundary West South West (11) 0.4 WSW 252° Quarterly Site Boundary South West (12) 0.3 SW 228° Quarterly Site. Boundary South South West (13) 0.3 SSW 201° Quarterly Site Boundary South (14) 0.4
- , s 182° Quarterly Site Boundary South South East (15) 0.6 SSE 157° Quarterly Site Boundary South East (16)
- 0.9.
SE 135° Quarterly Site Boundary Station Intake (18) 1.6 ESE 115° Quarterly Site Boundary Hog Island Reserve (19) 2.0 NNE 26° Quarterly Near Resident Bacon's Castle (20) 4.5 SSW 202° Quarterly Apx. 5 mile Route 633 (21) 4.9.*
SW 227° Quarterly Apx: 5 mile Alliance (22) 5.1 WSW 247° Quarterly Apx.. 5 mile Surry (23) 7.7 -
WSW 256° Quarterly Poplilation..Center Route 636 and 637 (24) 4.0 *
'*'-* -w 270° Quarterly Apx: 5 mile Scotland Wharf (25) 5.0 WNW 284° Quarterly Apx. 5 mile Jamestown (26) 6.3 NW 308° Quarterly Apx. 5 mile*
Colonial Parkway (27) 3.8 NNW 333° Quarterly Apx. 5 mile Route 617 and 618 (28) 4.9 NNW 340° Quarterly Apx: 5 mile Kingsmill (29) 4.6 N
20 Quarterly Apx. 5 mile Williamsburg (30) 7.8 N
oo Quarterly Population Center Kingsmill North (31) 5.5 NNE 12° Quarterly Apx. 5 mile Budweiser (32) 5.8 NNE 27° Quarterly Population Center Water Plant (33) 5.0 NE 46° Quarterly Apx. 5 mile, 9
Table 2-1 SURRY - 2019 RADIOLOGICAL SAMPLING STATIONS DISTANCE AND DIRECTION FROM UNIT NO. 1 Distance Sam~le Media Location Station Miles Direction Degrees Freguenc;y Remarks Environmental BASF (34) 5.1 ENE 70° Quarterly Apx. 5 mile TLDs Lee Hall (35) 7.1 ENE 75° Quarterly Population Center Goose Island (36) 5.1 E
90° Quarterly Apx. 5 mile Fort Eustis (37) 4.9 ESE 104° Quarterly Apx. 5 mile Newport News (38) 19.3 SE 130° Quarterly Population Center James River Bridge (39) 17.1 SE 142° Quarterly Control Location Benn's Church (40) 17.0 SSE 159° Quarterly Control Location Smithfield (41) 13.4 SSE 167° Quarterly Control Location Rushmere (42) 5.3 SSE 156° Quarterly Apx. 5 mile Route 628 (43) 5.1 s
177° Quarterly Apx. 5 mile Air Charcoal Surry Station (SS) 0.3 NNE 18° Weekly Site boundary location with highest D/Q and Particulate Hog Island Reserve (HlR) 2.0 NNE 26° Weekly Bacon's Castle (BC) 4.5 SSW 202° Weekly Alliance (ALL) 5.1 WSW 247° Weekly Colonial Parkway (CP) 3.8 NNW 333° Weekly BASF (BASF) 5.1 ENE 70° Weekly Fort Eustis (FE) 4.9 ESE 104° Weekly Newport News (NN) 19.3 SE 130° Weekly Control Location River Water Surry Station Discharge (SD) 0.4 NW 323° Monthly Scotland Wharf (SW) 4.9 WNW 284° Monthly.
Control Location Well Water Surry Station (SS) 0.1.
SW 227° Quarterly Onsite Hog Island Reserve (HlR) 2.0 NNE 28° Quarterly Construction Site (CS) 0.3 E
870 Quarterly Shoreline Hog Island Reserve.
(HlR) 0.6 N
70 Semi-Annually Sediment Chickahominy River (CHIC) 11.2 WNW 301° Semi-Annually Control Location Silt Chickahominy River (CHIC) 11.2 WNW.
300° Semi-Annually Control Location Surry Station Discharge (SD) 0.5 NW 315° Semi-Annually Surry Station Intake (SI) 1.8 ESE 112°.
Semi-Annually 10
Table 2-1 SURRY-2019 RADIOLOGICAL SAMPLING STATIONS DISTANCE AND DIRECTION FROM UNIT NO. 1 P. 3 of3 Distance Collection Sample Media Location Station Miles Direction Degrees Frequency Remarks Milk Colonial Parkway (CP) 3.7 NNW 336° Monthly Beachy Farm (BF) 12.0 SW 220° Monthly Control Location Epps (EPPS) 4.8 SSW 200° Monthly Oysters Point of Shoals (POS) 6.4 SSE 157° Semi-Annually Mulberry Point (MP) 4.9 ESE 124° Semi-Annually Swash Hole Island (SHI) 6.8 SE 128° Semi-Annually Clams Chickahominy River (CHIC) 11.2 WNW 300° Semi-Annually Control Location Surry Station Discharge (SD) 1.3 NNW 341 ° Semi-Annually Jamestown Island (IT) 3.9 NW 324° Semi-Annually Fish Surry Station Discharge (SD) 1.3 NNW 341 ° Semi-Annually Crabs Surry Station Discharge (SD) 1.3 NNW 341 ° Annually Crops Brock's Farm (BROCK) 3.8 s
183° Annually (Corn, Peanuts, Slade's Farm
.(SLADE) 3.2 s
179° Annually Soybeans) 11
Table2-2 SURRY-2019 SAMPLE ANALYSIS J;>ROGRAM REPORT SAMPLE MEDIA FREQUENCY ANALYSIS LLD*
UNITS mR/Std.
Thermoluminescent Quarterly Gamma Dose 2
Month Dosimetry (TLD)
Air Iodine Weekly I-131 0.07 pCi/m3 Air Particulate Weekly Gross Beta 0.01 pCi/m3 Gamma Quarterly (a)
Isotopic,
pCi/m3 Cs-134 0.05 Cs-137 0.06 River Water Quarterly Tritium (H-3) 2000 pCi/L Composite of monthly sample Monthly I-131 10 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 Well Water Quarterly Tritium (H-3) 2000 pCi/L I-131 1
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 Footnotes located at end of table.
12
Table 2-2 SURRY-2019 SAfvIPLE ANALYSIS PROGRAM p. 2 of3 SAMPLE MEDIA FREQUENCY ANALYSIS LLD*
REPORT UNITS Shoreline Sediment Semi-Annually Gamma Isotopic pCi/kg-dry Cs-134 150 Cs-137 180 Silt Semi-Annually Gamma Isotopic pCi/kg-dry Cs-134 150 Cs-137 180 Milk Monthly I-131 1
pCi/L Gamma Isotopic pCi/L Cs-134 15 Cs-137 18 Ba-140 60 La-140 15 Quarterly Sr-89 NA pCi/L Composite of CP Sr-90 NA monthly sample Oysters 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 Clams 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 Crabs 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 Footnotes located at end of table.
13
Table 2-2 SURRY -2019 SAMPLE ANALYSIS PROGRAM P. 3 of3 SAMPLE MEDIA FREQUENCY ANALYSIS LLD*
REPORT UNITS 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 Annually Gamma Isotopic pCi/kg-wet 1-131 60 Cs-134 60 Cs-137 80
- '~
Note: This tabie is* not a complete listing ofnuclides that can be detected and reported. Other peaks that are measurable and identifi.able, together with the aboye nuclides, are also identified and reported.
- LLD is the Lower Limit of Detection as defined and required in the USNRC Branch Technical Position on an Acceptable Radiological Environmental Monitoring Program, Revision 1, November 1979. LLDs indicate those concentrations to which environmental samples are required to be analyzed. Actual.
analysis of samples may be lower than these listed values.
(a) Quarterly composites of each location's weekly air particulate samples are analyzed for gamma emitters.
NA None assigned 14
VI SW Legend All 8ampllng Slaliam
- llD Slnipfillg Slole EllvlrCilmenlll Monitlring S1taa
- Slate TLD Siln
- ** ** Fwiulim An,a ~11nrl11ry Figure 1. Surry Radiological Monitoring Locations E
ESE L..__ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_J
0\\
Figure 2. Surry Emergency Plan Map Air Sampling Stations
- Nearest Residents
S.SE
w 00
Figure 5. Surry Emergency Plan Map 8 Air Sampling Stations
- Nearest Residents
}
- 1...
~
v l. __
i.'
c' Gr'!v.r -
/ )
- 3. ANALYTICAL RESULTS 3.1 Summary of Results In accordance with the Surry 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", Revision 1, November 1979. A more detailed analysis of the data is given in Section 4.
20
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Surry Power Station, Surry County, Virginia - 2019 Docket No. 50-280-281 Page 1 of7 Medium or Indicator Pathway Arialvsis.:
- Locations Location with Highest Mean Sampled I
Total Mean I Distance I Mean (Units)
Type No.
LLD Range Name Direction Range Direct Gamma 164 2
16.8 (151/152)
STA-9 0.3 mi E
23.0 (4/4)
(22.4 - 23.9)
Radiation (11.7 - 23.9)
TLD(mRI Std Quarlerj Air Gross 416 10 14.2 (363/364)
BASF 5.1 mi 15.7 (52/52)
Particulate Beta (5.80 - 25.1)
ENE (7.54 - 24.9)
Control Locations Mean Range 17.9 (12/12)
(15.1 - 23.0) 14.0 (52/52)
(6.74 - 26.8)
Non-Routine Reported Measurements O*
0 (1E-3 pCi/m3)
Gamma 32 Be-7 32 150 (28/28)
BASF 5.1 mi 167 (4/4) 149 (4/4) 0 (97.6 -198)
ENE (131 -191)
(143 - 154)
K-40 32 21.3 (1/28)
ALL 5.1 mi 21 ;3 (1/28)
<LLD' 0
(21.3 - 21.3)
WSW (21.3 - 21.3)
Cs-134 32 50
< LLD N/A
< LLD
< LLD 0
Cs-137 32 60
< LLD N/A
< LLD
< LLD 0
Air Iodine 1-131 416 70
< LLD N/A
< LLD
< LLD 0
(1E-3 pCi/m3)
Milk Strontium 4
(pCi!Liter)
Sr-89 4
< LLD N/A
< LLD
< LLD 0
Sr-90 4
1.37 (2/4)
CP 3.7mi 1.37 (2/4)
< LLD 0
(1.28 -1.46)
NNW (1.28 - 1.46)
Gamma 36 K-40 36 1282 (24/24)
EPPS 4.8 mi 1334 (12/12) 1114 (11/12) 0 (1010 -1520)
SSW (1080 - 1520)
(827 - 1300) 1-131 36
< LLD N/A
< LLD
<LLD 0
Cs-134 36 15
< LLD N/A
< LLD
< LLD 0
Cs-137 36 18
< LLD N/A
< LLD
< LLD 0
Ba-140 36 60
< LLD N/A
< LLD
< LLD 0
La-140 36 15
< LLD N/A
< LLD
< LLD 0
21
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Surry Power Station, Surry County, Virginia - 2019 Docket No. 50-280-281
- page 2 of7 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled ITotal Mean I Distance I Mean Mean Reported (Units)
Type No.
LLD Range Name Direction Range Range Measurements Food Gamma 3
Products (pCi/kg wet)
K-40 3
9413 (3/3)
Slade 3.2mi 17800 (1/1)
N/A 0
(3430 - 17800) s (17800-17800)
Be-7 3
< LLD N/A
< LLD N/A 0
Th-228 3
< LLD N/A
< LLD N/A 0
1-131 3
60
< LLD N/A
< LLD N/A 0
Cs-134 3
60
< LLD N/A
< LLD N/A 0
Cs-137 3
80
< LLD N/A
< LLD N/A 0
Well H-3 12 2000
< LLD N/A
<LLD*
N/A 0
Water (pCi/Liter)
Gamma 12 Mn-54 12 15
< LLD N/A
< LLD N/A 0
Co-58 12 15
< LLD N/A
< LLD N/A 0
Fe-59 12 30
< LLD N/A
< LLD N/A 0
Co-60 12 15
< LLD N/A
Zn-65 12 30
< LLD N/A
< LLD N/A 0
22
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Surry Power Station, Surry County, Virginia - 2019 Docket No. 50-280-281 Page 3 of7 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled ITo~al Mean I Distance I Mean Mean Reported (Units)
Type No.
LLD Range Name Direction Range Range Measurements Well Nb-95 12 15
Water (pCi!Liter)
Zr-95 12 30
1-131 12
Cs-134 12 15
Cs-137 12 18
Ba-140 12 60
La-140 12 15
"'"""""".. """"""""'"'""""""'""'"*'""'"'"'"'"""'"".,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,., I"'"'"'""'"'""'"'"'"'""'""'"'"""'""'""',."'""'"'""'"""""""",."""""**,"""""""""'""'""' """'"'"'"'"'. "'"' "'"'"'"'"' "'"'"'"'"'"'"'"'"'"'"' "'"'"'"'"'"'"'"',."'""'"""'""""""""""'"' """' "'"'"'"""' "'"'"'"'"' "'"'"'"'"""'"'"' '""'""""'"""""""'"'""".,""
River H-3 8
2000
<LLD NIA
< LLD
< LLD 0
Water (pCi!Liter)
Gamma 24 K-40 24 148 (3/12)
SD 0.4 ini 148 (3/12) 76.9 (2/12) 0 (96.3 - 207.0)
NW (96.3 - 207.0)
(62.2 - 91.6)
Ra-226 24
< LLD 267 (1/12) 0 (267 -267)
Th-228 24
< LLD
< LLD 0
Mn-54 24 15
< LLD
< LLD 0
Co-58 24 15
< LLD
< LLD 0
Fe-59 24 30
< LLD
< LLD 0
Co-60 24 15
< LLD
< LLD 0
Zn-65 24 30
< LLD
<LLD 0
23
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Surry Power Station, Surry County, Virginia - 2019 Docket No. 50-280-281
- 'Page 4 of7 Medium or Indicator Control Pathway Analysis.
Locations Location with Highest Mean Locations Non-Routine Sampled rotal Mean I
Distance I Mean Mean Reported (Units)
Type. No.
LLD Range Name Direction Range Range Measurements River Nb-95 24 15
<LLD N/A
<LLD
<LLD 0
Water (pCilliter)
Zr-95 24 30
<LLD N/A
<LLD
<LLD 0
1-131 24 10
<LLD N/A
< LLD
< LLD 0
Cs-134 24 15
<LLD
<LLD 0
Cs-137 24 18
< LLD N/A
< LLD
<LLD 0
Ba-140 24 60
<LLD N/A
<LLD
< LLD 0
La-140 24 15
< LLD NfA.
<LLD
<LLD 0
Silt Gamma 6
(pCi/l<gdl}')
Be-7 6
2640 (2/4)
SI 1.8mi 3170 (1/4)
<LLD 0
(2110-3170)
ESE (3170
- 3170)
K-40 6
16800 (4/4)
SI 1.8mi 12400 (2/4) 16750 (2/2) 0
. (12400-20400)
ESE (16400-20400) (16500-17000)
Cs-134 6
150
<LLD N/A
<LLD
< LLD 0
Cs-137 6
180 195 (2/4)
SD 1.3mi 194.5 (2/4)
< LLD 0
(164
- 225)
NNW (164.0
- 225.0)
Ra-226 6
4085 (2/4)
SD 1.3mi 5080 (1/4) 3800 (1/2) 0 (3090
- 5080)
NNW (5080 - 5080)
(3800
- 3800)
Th-228 6
1348 (4/4)
SI 1.8 mi 1310 (2/4) 1360 (2/2) 0 (880
- 1740)
ESE.
(880 -1740)
(1270 - 1450)
Th-232 4
1200 (4/4)
SI 1.8mi 1250 (2/4) 1325 (2/2) 0 (1020 -1480}
ESE (1020 -1480}
(1280 -13701 24
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
S[!rry Power Station, Surry County, Virginia - 2019 Docket No. 50-280-281 Pages of7 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled ITotal Mean I Distance I Mean Mean Reported
, (Units)
Type No.
LLD Range Name Direction Range
- Range Measurements Shoreline K-40 4
4980 (2/2)
HIR 0.6mi 4980 (2/2) 5822 (2/2) 0 Sediment (3820 - 6140)
N (3820 - 6140)
(1510 -10200)
(pCi/kg dry)
Cs-134 4
150
< LLD N/A
< LLD
< LLD 0
Cs-137 4
180
< LLD N/A
< LLD 126 (1/2) 0 (126 - 126)
Ra-226 4
< LLD N/A
< LLD
< LLD 0
Th-228 4
< LLD N/A
< LLD 594 (2/2) 0 (278 - 909)
Th-232 4
< LLD N/A
< LLD 866 (1/2) 0 (866 - 866)
Fish Gamma 4
(pCilkg wet)
K-40 4
2055 (4/4)
SD 1.3 mi' 2055 (4/4)
NIA 0
(1350 - 2590)
NNW (1350 - 2590)
Mn-54 4
130
< LLD N/A
< LLD N/A 0
Co-58 4
130
< LLD N/A
Fe-59 4* 260
< LLD N/A
< LLD N/A 0
Co-60 4
130
< LLD N/A
< LLD N/A 0
Zn-65 4
260
< LLD N/A
< LLD N/A 0
Cs-134 4
130
< LLD N/A
< LLD N/A 0
Cs-137 4
150
< LLD N/A
< LLD N/A 0
25
TA BLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Medium or Pathway Sampled (Units)
Oysters (pCilkg wet)
Clams (pCi/kg wet)
Surry Power Station, Surry County, Virginia - 2019 Docket No. 50-280-281
-page 6 of7 Indicator Control Analysis Locations Location with Highest Mean
- Locations Non-Routine ITotal Mean I
Distance I Mean Mean Reported Type No.
LLD Range Name Direction Range Range Measurements Gamma 6
K-40 6
674 (316)
SHI 6.8 mi 674 (316)
NIA 0
(540 - 787)"
SE (540 - 787)
Mn-54 6
130
< LLD N/A
< LLD N/A 0
Fe-59 6
260
< LLD N/A
< LLD N/A 0
Co-58 6
130
< LLD N/A
< LLD N/A 0
Co-60 6
130
Zn-65 6
260
< LLD N/A
< LLD N/A 0
Cs-134 6
130
< LLD N/A 0
Cs-137 6
150 *
< LLD N/A
Gamma 6
K-40 6
586 (214)
JI 3.9mi 586 (214)
< LLD 0
(485 - 687)
NW (485 - 687)
Mn-54 6
130
< LLD
< LLD 0
Co-58 6
130
< LLD
< LLD 0
Fe-59 6
260
< LLD
< LLD 0
Co-60 6
130
< LLD N/A
< LLD
< LLD 0
Zn-65 6
260
< LLD N/A
< LLD
< LLD 0
Cs-134 6
130
< LLD N/A
< LLD
< LLD 0
Cs-137 6
150
< LLD N/A
< LLD
< LLD 0
26
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Surry Power Station, Surry County, Virginia - 2019 Docket No. 50-280-281 Page 7 of7 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine
.Sampled
!Total Mean I Distance I Mean Mean Reported (Units;.
Type No.
LLD Range Name Direction Range Range Measurements Crabs Gamma (pCi/kg wet)
K-40 1630 (1/1)
SD 1.3 mi 1630 (1/1)
N/A 0
(1630 -1630)
NNW (1630 - 1630)
Mn-54 130
< LLD N/A
< LLD N/A 0
Co-58 130
< LLD N/A
< LLD N/A 0
Fe-59 260
< LLD N/A'
< LLD N/A 0
Co-60 130
< LLD N/A
< LLD N/A 0
Zn-65 260.
< LLD N/A *
< LLD N/A 0
Cs-134 130 _; -
< LLD N/A:-
< LLD N/A 0
Cs-137 150 *
< LLD N/A
<LLD N/A 0
27
3.2 Analytical Results of 2019 REMP Samples Radiological analyses of environmental media characteristically approach and frequently fall below the detection limits of state-of-the-art measurement methods. The reported error is two times the standard deviation (2cr) 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 positive when the measured value exceeds 2cr uncertainty, unless otherwise noted. MDC is noted in the footnote in several tables. The term <MDC means the value is less than its Minimum Detectable Concentration and is therefore, not.considered a positive value or result. Positive values or results are indicated by bold text.
Teledyne Brown Engineering 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 Surry ODCM.
Data are given according to sample type as indicated below.
- 1.
Gamma Exposure Rate
- 2.
Air Particulates, Weekly Gross Beta Radioactivity
- 3.
Air Particulates, Weekly I-131
- 4.
- Air Particulates, Quarterly Gamma Spectroscopy
- 5.
- Animal Milk
- 6.
Food Products *
- 7.
Well Water
- 8.
River Water
- 9.
Silt
- 10.
Shoreline Sediment 1 l.
Fish
- 12.
Oysters
- 13.
Clams
- 14.
Crabs 28
~ ---~-----------------------------------,
TABLE 3-2: GAM.MA EXPOSURE RATE Surry Power Station, Surry County, Virginia-2019 MDDu = 3 x O"u
= 3 X 1.0 =5 Note: IF MDDu < 5 mR, THEN MDDu rounded to 5 mR (ANSI N13.37)
MDDA = 3 x Q"A
= 3 X 2.3 = 10 Note: IF MDDA < 10 mR, THEN MDDA rounded to 10 mR (ANSI N13.37)
Moni-Quarterly Normalized Quarterly
- Quarterly Facility Annual Annual
- Annual toring
- Baseline, Monitoring Data, Mu
- Dose, a
Base-Moni-Facility Loca-Bu (mrem per standard Fu= Mu -Bu line, BA toring Dose,"
tion
- Baseline, quarter).
(mrem)
(mrem)
- Data, FA=
(mrem)
MA MA-BA 1
2 3
4 1
2 3
4 (mrem)
(mrem) 2 19.8 18.9
. 18.1 21.0 19.7 ND ND ND ND 79.2 77.7 ND 3
19.2 19.0 19.0 20.7
- 19.5 ND ND ND ND 76.9 78.1 ND 4
17.9 17.0
. 17.3 21.2 17.2
- ND ND ND ND 71.7
- 72.7 ND 5
19.0 18.3 17.9 19.7 19.4 ND ND ND ND 76.0 75.3 ND 6
18.4 17.1 18.3 19.4 18.8 ND ND ND.
ND 73.8 73.6 ND 7
18.7 17.0 16.6 19.2 17.4 ND ND ND ND 74.6 70.3 ND 8
17.0 15.9 16.9 18.6 17.1 ND ND ND ND 68.4 68.5 ND 9
- 23.2 22.4 22.9 23.9 22.9 ND ND.
ND ND 92.8 92.0 ND 10 18.1 17.0 17.5 19.5 18.2 ND ND ND ND 72.5 72.3 ND 11 16.1 15.7 15.0 17.9 14.3 ND ND ND ND 64.2 63.0 ND 12 16.6 15.8 16.0 17.9 15.7 ND ND ND ND 66.4 65.5 ND 13 18.6 18.2 18.5 19.4 18.0 ND ND ND ND 74.5 74.1 ND 14 17.9 16.8 17.8 19.4 16.9 ND ND ND ND 71.6 71.0 ND 15 18.5 17.2 18.1 20.1 18.7 ND ND ND
,17.0 16.0 17.0 18.3 16.9 ND ND ND ND 67.7 68.3 ND 18 14.5 14.2 15.3 16.3 15.3 ND ND ND ND 58.0 61;1 ND 19 15.5 15.2 15.7 15.9 15.4 ND ND ND ND 62.1 62.2 ND 20 14.3 14.3 13.9 14.7 14.5 ND ND ND ND 57.4 57.4 ND 21 15.1 14.6 15.1 m
15.6 ND ND N/A ND 60.5 60.4 ND 22 13.2 13.1 13.1 13.8 13.2 ND ND ND ND 52.7 53.3 ND 23 18.1 18.1 18.9 19.3 18.1 ND ND ND ND 72.3 74.4 ND 24 14.8 14.2 14.2 15.5 14.9 ND ND ND ND 59.2 58.8 ND 25 18.1 18.1 18.8 18.7 18.5 ND ND ND ND 72.3 74.0 ND 26 15.7 14.6 15.4 16.1 16.5 ND ND ND ND 62.9 62.7 ND 27 14.7 13.8 14.6 16.4 15.3 ND ND ND ND 58.7 60.1 ND 28 14.2 14.0 14.4 13.8 15.6 ND ND ND ND 56.8 57.7 ND 29 13.2 12.7 13.1 13.2 13.6 ND ND ND ND 52.9 52.6 ND 30 14.4 14.4 13.4 15.3 15.4 ND ND ND ND 57.7 58.5 ND 31 12.3 12.1 11.7 12.9 12.9 ND ND ND ND 49.2 49.7 ND 32 15.2 14.2 13.7 14.7 15.1 ND ND ND ND 60.7 57.7 ND 33 14.2 15.0 15.3 15.0 15.3 ND ND ND ND 57.1 60.6 ND 34 16.0 15.8 16.5 17.0 17.2 ND ND ND ND 64.1 66.5 ND 35 18.6 18.9 18.3 19.3 20.5 ND ND ND ND 74.4 77.1 ND 36 18.6 19.1 18.3 20.2 20.1 ND ND ND ND 74.4 77.6 ND 37 15.4 16.0 15.8 16.4 15.2 ND ND ND ND 61.7 63.4 ND 38 20.9 20.6 19.1 17.6 17.2 ND ND ND ND 83.6 74.6 ND 39 14.9 15.1 15.5 17.3 16.6 ND ND ND ND 59.7 64.5 ND 40 16.2 15.7 16.2 16.1 15.6 ND ND ND ND 64.7 63.7 ND 41 21.8 21.4 21.0 23.0 21.6 ND ND ND ND 87.3 87.1 ND 42 16.4 16.0 16.3 17.0 15.7 ND ND ND ND 65.5 65.0 ND 43 14.3 13.7 14.0 14.7 15.0 ND ND ND ND 57.3 57.4 ND
- ND= Not detected, where Mu< (Bu+ MDDul bND = Not detected, where MA< (BA+ MDDA) d = Damaged TLDs; m = Missing TLDs; v = Vendor reports TLD not received N/ A= Missing or Damaged TLD Reading Not Available for Calculation Note: Table formatted in accordance with ANSI/HPS N13.37-2014, Environmental Dosimetry -
Criteria for system Design and Implementation.
29
TABLE 3-3: GROSS BETA CONCENTRATION IN FILTERED AIR Surry Nuclear Power Station, Surry County, *v irginia - 2019 1.0E-3 pCi/m3 +/- 2 Sigma Page 1 of2 COLLECTION SAMPLING LOCATIONS DATE 55 HIR BC ALL CP BASF FE NN-C January 08 _
15.1 +/- 3.17 16.3 +/- 3.23 16.6 +/- 3.30 16.7 +/- 3.27 16.5 +/- 3.22 16.0 +/- 3.17 17.0 +/- 3.23 12.5 +/- 2.96 January 15 7.51 +/- 2.26 8.39 +/- 2.30 10.8 +/- 2.51 10.0 +/- 2.41 9.56 +/- 2.38 9;95 +/- 2.41 10.2 +/- 2.42 8.52 +/- 2.30 January 22 0.00 +/- 0.00 B 11.1 +/- 2.66 10.8 +/- 2.71 12.1 +/- 2.73 10.8 +/- 2.65 12.9 +/- 2.75 10.2 +/- 2.67 11.0 +/- 2.67 January 29 9.55 +/- 2.38 13.6 +/- 2.60 10.4 +/- 2.45 13.4 +/- 2.63 12.7 +/- 2.53 14.1 +/- 2.61 13.1 +/- 2.57 24.4 +/- 3.19 February 05 20.3 +/- 3.21 20.0 +/- 3.18 19.8 +/- 3.24 25.1 +/- 3.46 20.8 +/- 3.21 24.9 +/- 3.38 19.8 +/- 3.14 19.7+/-3.16 February 12 19.3 +/- 3.16 20.1 +/- 3.17 19.5 +/- 3.23 20.4 +/- 3.27 18.8 +/- 3.10 19.7 +/- 3.15 16.0 +/- 2.96 15.9 +/- 2.96 February 19 12.2 +/- 2.58 12.7 +/- 2.58 11.6 +/- 2.57 15.2 +/- 2.77 14.2 +/- 2.65 17.4 +/- 2.85 12.5 +/- 2.56 11.0 +/- 2.49 February 25 14.1 +/- 3.03 13.6 +/- 2.97 13.9 +/- 3.07 15.1 +/-3.14 16.0 +/- 3.12 17.7 +/- 3.21 14.5 +/- 3.04 14.2 +/- 3.01 March 05 11.9 +/- 2.39 11.2 +/- 2.34 12.1 +/- 2.43 15.0 +/- 2.58 12.9 +/- 2.42 14.9 +/- 2.51 11.1 +/- 2.32 12.1 +/- 2.19 March 11 13.1 +/- 2.77 11.4 +/- 2.65 13.0 +/- 2.80 11.6+/-2.72 12.9 +/- 2.74 13.0 +/- 2.74 10.5 +/- 2.59 10.3 +/- 2.86 March 19 17.6 +/- 2.67 15.7 +/- 2.56 17,7 +/- 2.71 18.7 +/- 2.76 15.0 +/- 2.50 17.8 +/- 2.64 15.1 +/- 2.50 14.7 +/- 2.48 March 25 7.93 +/- 2.80 7.80 +/- 2.78 8.74 +/- 2.90 10.. 9 +/- 3.06 10.2 +/- 2.92 10;9 +/- 2.96 8.47 ;I: 2.81 8.10 +/- 2.76 Qtr. Avg.+/- 2 s.d.
12.4 +/- 11.3 13.5 :i: 7.9 13.7 +/- 7.5 15.4 +/- 8.8 14.2 +/- 6.8 15.8 +/- 8.2 13.2 +/- 6.7 13.5 +/- 9.4 April 02 11.3+/-2.33 13.1 +/- 2.42 12.7 +/- 2.41 14.0 +/- 2.50 10.8 +/- 2.28 16.5 +/- 2.59 11.8 +/- 2.33 13.0 +/- 2.40 April 09 10.2 +/- 2.35 11.8 +/- 2.42 11.3+/-2.50 14.8 +/- 2.73 10.1 +/- 2.38 14.7 +/- 2.65 12.6 +/- 2.52 11.3 +/- 2.47 April 16 5.80 +/- 2.34 9.45 +/- 2.52 6.75 +/- 2.33 8.65 +/- 2.53 6.30 +/- 2.24 8.65 +/- 2.39 5.85 +/- 2.21 6.74 +/- 2.28 April 23 7.97 +/- 2.27 10.2 +/- 2.37 10.1 +/- 2.45 7.76 +/- 2.31 10.5 +/- 2.43 9.94 +/- 2.40 9.49 +/- 2.37 9.12 +/- 2.33 April 30 14.3 +/- 3.10 14.2 +/- 3.02 11.8+/-2.84 17.0 +/- 3.17 12.8 +/- 2.86 15.5 +/- 2.99 13.7 +/- 2.91 12.1 +/- 2.84 May 08 13.5 +/- 2.59 10.5 +/- 2.36 12.5 +/- 2.. 52 15.1 +/- 2.70 12.0 +/- 2.45 15.9 +/- 2.65
.15.2 +/- 2.63 10.5 +/- 2.37 May 14 6.91 +/- 2.81 8.43 +/- 2.84 8.54 +/- 2.87 7.88 +/- 2.88 8.70 +/- 2.85
,11.1 +/- 3.01 6.07 +/- 2.68 9.74 +/-.2.93 May 21 16.1 +/- 2.89 12.6 +/- 2.6f3 17.0 +/- 2.90 12.8 +/- 2.69 13.1 +/- 2.68 17,5 +/- 2.89 13.3 +/- 2.69 13.1 +/- 2.68 May28 12.5 +/- 2.66 10.4 +/- 2.49 10.7 +/- 2.53 11.3+/-2.57 11.5 +/- 2.56 11.6 +/- 2.56 14.3 +/- 3.09 11.6+/-2.57 June 04 17.1 +/-2.96 12.8 +/- 2.66 14.9 +/- 2.80 17.7 +/- 2.99 14.5 +/-' 2.75 17.0 +/- 2.86 16.9 +/- 2.88 14.4 +/- 2.75 June 11 11.8 +/- 2.62 11.9 +/- 2.56 11.4 +/- 2.57 13.8 +/- 2.77 13.5 +/- 2.70 16.6 +/- 2.87 13.5 +/- 2.69 12.9 +/- 2.63 June 19 11.9 +/- 2.51 11.3 +/- 2.43 10.9 +/- 2.43 13.7 +/- 2.64 13.5 +/- 2.56 11.9+/-2.47 10.8 +/- 2.41 9.77 +/- 2.34 June 25 8.96 +/- 2.63 7.93 +/- 2.53 11.1 +/- 2.79 11.3 +/- 2.82 9.20 +/- 2.62 7.54 +/- 2.49 9.63 +/- 2.64 8.65 +/- 2.58 Qtr. Avg. +/- 2 s.d.
11.4 +/- 6.8 11.1 +/- 3.7 11.5 +/- 5.1 12.8 +/- 6.5 11.3 +/- 4.6 13.4 +/- 6.9 11.8 +/- 6.6 11.0 +/- 4.3 B = Visual inspection indicated very little particulate material on filter; result not included.
30
TABLE 3-3: GROSS BETA CONCENTRATION IN FILTERED AIR Surry Nuclear Power Station, Surry County, Virginia - 2019 1.0E-3 pCi/m3 +/- 2 Sigma Page 2 of2 COLLECTION SAMPLING LOCATIONS DATE 55 HIR BC ALL CP BASF FE NN July 02 16.5 +/- 2.86 12.7 +/- 2.59 16.7 +/- 2.85 15.8 +/- 2.82 15.3 +/- 2.72 16.0 +/- 2.75 16.6 +/- 2.79 12.0 +/- 2.54 July 9 15.8 +/- 2.93 12.0 +/- 2.67 15.9 +/- 2.91 17.8 +/- 3.04 17.1 +/- 2.99 16.7 +/- 2.90 13,1 +/- 2.70 11.3 +/- 2.60 July 16 12.1 +/- 2.60 12.4 +/- 2.56 12.7 +/- 2.63 11.5 +/- 2.58 10.4 +/- 2.46 15.3 +/- 2.76 12.6 +/- 2.60 10.4 +/- 2.49 July 22 18.0 +/- 3.52 16.0 +/- 3.32 19.9 +/- 3.58 18.0 +/- 3.53 16.9 +/- 3.39 22;1 +/- 3.66 17.4 +/- 3.42 18.5 +/- 3.48 July 30 11.0 +/- 2.57 9.15 +/-' 2.44 11.4 +/- 2.69 12.9 +/- 2.79 10.0 +/- 2.59 13.1 +/- 2.72 9.92 +/- 2.55 8.64 +/- 2.48 August 06 13.6 +/- 2.84 15.8 +/- 2.90 16.6 +/- 2.87 17.3 +/- 2.94 13.9 +/- 2.69 19.2 +/- 2.96 13.6 +/- 2.66 11.6.+/- 2.55 August 13 15.1 +/- 2.86 13.9 +/- 2.75 17.7 +/- 2.98 15.6 +/- 2.90 14.3 +/- 2.79 18.0 +/- 2.97 17.5 +/- 2.94 13.7 +/- 2_.75 August 20 16.1 +/- 3.00 12.3 +/- 2.73 13.1 +/- 2.81 18.2+/-3.12 16.2 +/- 2.94 16.0 +/- 2.94 11;3 +/-2.68 12.7 +/- 2.79 August 26 12.9 +/- 3.02 13.1 +/- 2.95 14.9 +/- 3.20 14.6+/-3.18 14.0+/-3.11 12.7 +/- 3.01 9.80 +/- 2.84 12.3 +/- 3.00 September 03 13.7 +/- 2.75 12.3 +/- 2.59 17.6 +/- 2.87 15.6 +/- 2.78 5.84 +/- 2.16 16.8 +/- 2.75 15.7 +/- 2.71 12.2 +/- 2.56 September 10 12.6 +/- 2.76 14.9 +/- 2.83 17.3 +/- 3.06 16._2 +/- 3.00 13.8 +/- 2.85 17.3 +/- 3.02 15:8 +/- 2.~3 11.3 +/- 2.70 September 17 21.1 +/- 3.38 18.5 :I; 3.17 24;5 +/- 3.42 21.2 +/- 3.3.1 25.0 +/- 3.44 22.5 +/- 3.29 19.5+/-3.15 19.6 +/- 3:14 September 24 16.5 +/- 3.01 13.9 +/- 2.80 17.1 +/- 3.02 18.8 +/- 3.12 14.9 +/- 2.89 15.9 +/- 2.91 13.3 +/- 2.77 17'.6 +/- 3.01 September 30 21.9 +/- 3.55 20.4 +/- 3.38 19.6 +/- 3.41 1*8.0 +/- 3.34 17.6 +/- 3.27 24.5 +/- 3.59 21.7 +/- 3.45 22.5 +/- 3.49 Qtr. Avg. +/- 2 s.d.
15.5 +/- 6.4 14,1 +/- 5.8 16.8 +/- 6.6 16.5 +/- 5.0 14.7 +/- 8.8 17.6 +/- 6.9 14.8 +/- 7.0 13.9 +/- 8.0 October 08 18.8 +/- 2.95 20.2 +/- 2.96 20.8 +/- 3.04 17.9 +/- 2.90 19.0 +/- 2.91 20.5 +/- 2.95 15.4 +/- 2.71 18.8 +/- 2.88 October 16 19.5 +/- 2.90 18.6 +/- 2.79 20.9 +/- 2.96 17.8 +/- 2.83 18.4 +/- 2.82 23.1 +/- 3.01 19.0 +/- 2.84 21.2 +/- 2.95 October 22 9.92 +/- 2.95 9.30 +/- 2.83 9.31 +/- 2.90 9.12 +/- 2.89 10.2 +/- 2.90 11.1 +/- 3.03 10.5 +/- 2.88 11.3 +/- 2.93 October 29 12.3 +/- 2.71 11.4 +/- 2.61 13.5 +/- 2.77 9.21 +/- 2.53 12.8 +/- 2.71 15,3 +/- 2.83 11.0 +/- 2.61 17.3 +/- 2.96 November 05 10.3 +/- 2.58 9.30 +/- 2.47 10.6 +/- 2.56 9.40 +/- 2.48 12.6 +/- 2.64 10.9 +/- 2.51 10.6 +/- 2:51
- 11.7 +/- 2.57 November 12 20.5 +/- 3.21 18.8 +/- 3.08 24.1 +/- 3.37 20.2 +/- 3.20 22.4 +/- 3.27 18.9 +/- 3.06 19.9+/-3.14 26.8 +/- 3.46 November 19 11.5 +/- 2.48 12.4 +/- 2.50 14.3 +/- 2.64 9.94 +/- 2.38 10.9 +/- 2.42 9.71 +/- 2.31 10.6 +/- 2.38 13.9 +/- 2:5*8 November 26 17.6 +/- 3.09 15.1 +/- 2.93 19.7 +/- 3.19 16.3 +/- 3.03 16.7 +/- 3.02 20.9 +/-.3.18 17.1 +/- 3.01 20.9 +/- 3.21 December 03 8.70 +/- 2.34 9.53 +/- 2.36 12.3 +/- 2.55 10.4 +/- 2.44 10.4 +/- 2.40 12.4 +/- 2.49 8.59 +/- 2.27 16.6 +/- 2.77 December 10 9.34 +/- 2.60 10.5 +/- 2.61 11.3 +/- 2.68 8.10 +/- 2.52 9.08 +/- 2.54 10.4 +/- 2.58 11.0 +/- 2.64 12.6 +/- 2.76 December 17 14.3 +/- 3.04 12.9 +/- 2.90 15.7 +/- 3.08 14.0 +/- 3.03 16.1 +/- 3.10 12.6 +/- 2.85 11.6+/-2.83 16.7 +/- 3.13 December 23 19.9 +/- 3.49 17.9 +/- 3.32 24.9 +/- 3.72 18.8 +/- 3.42 22.5 +/- 3.59 21.7 +/- 3.50 20.4 +/- 3.46 22.1 +/- 3.57 December 31 16.3 +/- 2.61 14.8 +/- 2.48 19.8 +/- 2.83 17.9 +/- 2.74 20.7 +/- 2.83 19.8 +/- 2.78 17.7 +/- 2.69 20.3 +/- 2.83 Qtr. Avg.+/- 2*s.d.
14.5 +/- 8.8 13.8 +/- 7.9 16.5 +/- 10.4 13.7 +/- 8.8 15.1 +/- 9.1 15.8 +/- 9.7 13.9 +/- 8.2 17.2 +/- 9.3 31
TABLE 3-4: IODINE-131 CONCENTRATION IN FILTERED AIR Surry Power Station, Surry County, Virginia - 2019 1.0E-3 pCi/m3 +/- 2 Sigma Page 1 of2 COLLECTION SAMPLING LOCATIONS DATE ss HIR BC ALL CP BASF FE NN-C January 08 15.0 +/- 20.4 14.9 +/- 20.2 15.2 +/- 20.6 14.9 +/- 20.2 22.0 +/- 29.9 21.7 +/- 29.5 21.7 +/- 29.5 21.6 +/- 29.4 January 15
-0.39 +/- 14.6
-0.38 +/- 14.4
-0.40 +/- 14.8
-0.38 +/- 14.4
-2.05 +/- 6.53
-2.05 +/- 6.52
-2.04 +/- 6.50
-2.01 +/- 6.41 January 22
-2.'32 +/- 20.7
-2.29 +/- 20.5
-2.36+/-21.1
-2.30 +/- 20.5 2.83 +/- 23.0 2.81 +/- 22.8 2.91 +/- 23.6 2.82 +/- 22.9 January 29 14.6 +/- 19.1 14.3 +/- 18.7 14.7 +/- 19.2 14.7 +/- 19.2
-9.87 +/- 23.3
-9.87 +/- 23.3
-9.97 +/- 23.5
-9.98 +/- 23.6
+/-
+/-
+/-
+/-
+/-
+/-
+/-
+/-
February 05 8.09 +/- 12.1 8.01 +/- 12.0 8.27 +/- 12.4 8.16 +/- 12.2
-7.01 +/- 20.0
-6.94 +/- 19.8
-6.93 +/- 19.8
-7.00 +/- 20.0 February 12 3.90 +/- 11.1 3.83 +/- 10.9 3.99 +/- 11.4 3.97 +/- 11.3 0.48 +/- 7.04 0.48 +/- 7.04 0.40 +/- 5.89 0.48 +/- 7.05 February 19
-14.7 +/- 14.7
-14.5 +/- 14.5
-14.9 +/- 15.0
-14.8 +/- 14.9 1.94+/-17.3 1.96+/-17.4 1.94+/-17.3 1.95 +/- 17.4 February 25 5.08 +/- 9.86 5.01 +/- 9.71 5.20 +/- 10.1 5.19 +/- 10.1
-5.41 +/- 14.8
-5.39 +/- 14.7
-5.40 +/- 14.7
-5.37 +/- 14.7 March 05/06
-3.55 +/- 14.1
-3.50 +/- 13.9
-3.58 +/- 14.2
-3.56 +/- 14.1
-2.64 +/- 21.9
-2.62 +/- 21.6
-2.63 +/- 21.8
-2.25 +/- 18.6 March 11 20.1 +/-21.1 20.0 +/- 21.0 20.4 +/- 21.5 20.5 +/- 21.5 2.73 +/- 11.6 6.50 +/- 27.7 6.52 +/- 27.8 7.22 +/- 30.8 March 19 5.69 +/- 14.3 5.64 +/- 14.1 5.79 +/- 14.5 5.75 +/- 14.4 8.90 +/- 20.9 8.89 +/- 20.8 8.88 +/- 20.8 8.84 +/- 20.7 March 25
-1.58 +/- 4.72
-1.58 +/- 4.70
-1.62 +/- 4.82
-1.63 +/- 4.87
-1.33 +/- 19.7
-1.33 +/- 19.7
-1.33 +/- 19.6
-1.30 +/- 19.3 April 02
-2.15 +/- 18.7
-2.15 +/- 18.6
-2.15 +/- 18.7
-2.18 +/- 18.9 9.69 +/- 18.6 9.63 +/- 18.5 9.65 +/- 18.5 9.58 +/- 18.4 April 09 4.28 +/- 22.0 4.21 +/- 21.6 4.54 +/- 23.3 4.59 +/- 23.5 18.1 +/- 26.2 17.9 +/- 26.1 17.9 +/- 26.0 18.0 +/- 26.2 April 16
-4.61 +/- 12.9
-4.45 +/- 12.4
-4.47 +/- 12.5
-4.63 +/- 12.9
-15.2 +/- 16.9
-15.1 +/- 16.7
-15.1 +/- 16.8
-15.2 +/- 16.9 April 23 1.90 +/- 13.6 1.85 +/- 13.3 1.96+/-14.1 1.98 +/- 14.2
-23.7 +/- 25.7
-23.6 +/- 25.6
-23.6 +/- 25.6
-23.3 +/- 25.3 April 30
-2.31 +/- 11.1
-2.24 +/- 10.8
-2.21 +/- 10.7
-2.25 +/- 10.9
-9.07 +/- 17.1
-9.02 +/- 17.0
-9.04 +/- 17.0
-9.07+/-17.1 May08
-10.5 +/- 19.0
-10.2 +/- 18.5
-10.5 +/- 18.9
-10.6 +/- 19.2
-0.28 +/- 16.7
-0.28 +/- 16.6
-0.28 +/- 16.7
-0.28 +/- 16.5 May 14
-0.52 +/- 6.81
-0.50 +/- 6.61
-0.51 +/- 6.68
-0.52 +/- 6.81
-0.27 +/- 3.55 1.36 +/- 8.59 0.57 +/- 3.58 1.3'5 +/- 8.53 May21
-0.65 +/- 15.3
-0.63 +/- 15.0
-0.64 +/- 15.0
-0.64 +/- 15.0
-0.53 +/- 12.4 14.3 +/- 24.6 14.4 +/- 24.8 14.4 +/- 24.7 May28
-10.1 +/- 12.0
-9.85 +/- 11.7
-9.93 +/- 11.8
-9.97 +/- 11.9
-0.26 +/- 7.59
-0.25 +/- 7.53
-0.30 +/- 9.01
-0.25 +/- 7.51 June 04 0.61 +/- 11.8 0.59 +/- 11.5 0.60 +/- 11.6 0.61 +/- 11.7
-7.64 +/- 18.9
-7.47 +/- 18.5
-7.56 +/- 18.7
-7.58 +/- 18.7 June 11
-4.82 +/- 10.7
-4.66 +/- 10.4
-4.74 +/- 10.5
-4.87 +/- 10,8
-12.7 +/- 12.6
-12.7 +/- 12.5
-12.6 +/-.12.5
-12.4 +/- 12.3 June 19
-1.86 +/- 8.71
-1.81 +/- 8.48
-1.83 +/- 8.55
-1.88 +/- 8.80
-0.76 +/- 3.55
-4.50 +/- 5.08
-4.49 +/- 5:08
-4.45 +/- 5.04 June 25 2.99 +/- 11.2 2.94 +/- 11.0
.3.00 +/- 11.2 3.04 +/- 1.1.4 1.63 +/- 15.5 1.62 +/- 15.3 1.62 +/- 15.4 1.61 +/- 15.3 A:< MDC 32
TABLE 3-4: IODINE-131 CONCENTRATION IN FILTERED AIR Surry Power Station, Surry CoUl)ty, Virginia - 2019 1.0E-3 pCi/m3 +/- 2 Sigma Page2 of2 COLLECTION SAMPLING LOCATIONS DATE ss HIR BC ALL GP BASF FE NN-C July 02 8.66 +/- 15.4 8.42 +/- 15.0 8.55 +/- 15.3 8.61 +/- 15.4 6.94 +/- 12.4 0.80 +/- 19.1 0.81 +/- 19.2 0.80 +/- 19.2 July9 8.74+/-11.9 8.54+/-11.7 8.61 +/- 11.8 8.70+/-11.9
-6.03 +/- 19.2
-5.89 +/- 18.8
-5.89 +/- 18.8
-5.88 +/- 18.8 July16 1.94 +/- 11.7 1.88 +/- 11.4 1.92 +/- 11.6 1.95 +/- 11.8
-7.86 +/- 21.3
-7.90 +/- 21.4
-3.28 +/- 8.87
-7.88 +/- 21.3 July 22 4.89 +/- 9.68 4.74 +/- 9.37 4.81 +/- 9.52 4.91 +/- 9.70 1.38 +/- 10.8 1.38 +/- 10.8 1.38 +/- 10.8 1.38 +/- 10.8 July 30 0.03 +/- 6.96 0.03 +/- 6.86 0.03 +/- 7.40 0.03 +/- 7.46 1.01+/-12.1 0.99 +/- 11.8 0.98 +/- 11.8 0.98 +/- 11.8 August 06
-3.90 +/- 11.7
-3.77 +/- 11.3
-3.68 +/- 11.0
-3.73 +/- 11.2 6.57 +/- 14.0 6.49 +/- 13.8 6.50 +/- 13.8 6.52 +/- 13.9 August 13
-14.1 +/- 15.9
-13.7 +/- 15.5
-13.8 +/- 15.6
-14.'1 +/- 15.9 0.18+/-13.8 0.17 +/- 13.7 0.17 +/- 13.6 0.17 +/- 13.6 August 20
-9.07 +/- 15.8
-8.77 +/- 15.2
-8.92 +/- 15.5
-9.05 +/- 15.7
-4.35 +/- 6.54
-4.37 +/- 6.56
-4.36 +/- 6.55
-4.40 +/- 6.61 August 26
-3.31 +/- 11.4
-3.20 +/- 11.0
-3.44 +/- 11.8
-3.43 +/- 11.8
-3.24 +/- 13.5
-3.21 +/- 13.3
-3.22 +/- 13.4
-3.21 +/- 13.3 September 03
-5.78 +/- 13.5
-5.57 +/- 13.0
-5.61 +/- 13.1
-5.62 +/- f3:1
-3.94 +/- 16.0
-3.90 +/- 15.9
-3.92 +/- 16.0
-3.96 +/- 16.1 September 10 4.78+/-11.9 4.65 +/- 11.6 4.92 +/- 12.2 4.91' +/- 12.2 0.57 +/- 14.8 0.56 +/- 14.6 0.56 +/- 14.5 0.56 +/- 14.7 September 17
-2.04 +/- 13.6
-1.98 +/- 13.2
-1:96 +/- 13.1
-1.99 +/- 13.3 9.25 +/- 20.6 9.09 +/- 20.3 9.12 +/- 20.4 9.02 +/- 20.1 September 24 4.05 +/- 16.3 3.91 +/- 15.8 4.02 +/- 16.2 4.05 +/- 16.3
-0.42 +/- 10.2
-0.41 +/- 10.0
-0.41 +/- 10.b
-0.34 +/- 8.42 September 30 0.17 +/- 8.67 0.16 +/- 8.35 0.17 +/- 8.61 0.17 +/- 8.!36 3.71 +/- 12.9 3.65 +/- 12.7 3.64 +/- 12.7 3.63 +/- 12.7 October 08
-1.18 +/- 6.07
-2.73 +/- 14.1
-2.79 +/- 14.4
-2.78 +/- 14.3
-2.72 +/- 14.0 7.22 +/- 16.4 7.24 +/- 1_6.4 7.23 +/- 16.4 Oqt~?:er 16 9.42 +/- 11.8 7.62 +/- 9.54 9.36+/-11.7 9.42 +/- 11.8
-1.87 +/- 15.4
-1.84+/-15.1
-1.. 86 +/- 15.3
-1.86 +/- 15.3 October 22
-4.47 +/- 18.9
-4.31 +/- 18.2
-4.44 +/- 18.8
-4.43 +/- 18.7
-8.99 +/- 13.5
-9.25 +/- 13.9
-8.80 +/- 13.3
-8.78 +/- 13.2 October 29
-2.00 +/- 15.7
-1.95 +/- 15.3
-1.99 +/- 15.6
-2.00 +/- 15.7
-6.93 +/- 12.8
-3.10 +/- 5.75
-6.88 +/- 12.8
-6.87 +/- 12.7 November 05
-0.93 +/- 10.2
-0.91 +/- 9.92
-0.91 +/- 9.93
-0~91 +/- 9.91 0.41 +/- 15.8 0.40 +/- 15.5 0.40 +/- 15.6 0.40 +/- 15.6 November 12 0.08 +/- 8.48 0.08 +/- 8.29 0.08 +/- 8.43 0.08 +/- 8.48 *
-0.03 +/- 6.78
-0.03 +/- 6.66
-0.03 +/- 6.73
-0.03 +/- 6.72 November 19 14.4 +/- 12.2 A 14.1 +/- 12.0A 14.4 +/- '.12.2 A 14.4 +/- 12.2 A 6.10 +/- 10.7 2.88 +/- 5.06 5.98 +/- 10.5 5.9Q +/- 10:5 November 26
-1.59 +/- 11.5
-1.56 +/- 11.3
-1.58 +/- 11.4
-1.58 +/- 11.4
-1.31 +/- 9.43
-2.10 +/- 4.54
-2.52 +/- 5.45
-2.53 +/- 5.47 December 03 1.35 +/- 9.04 3.16 +/- 21.1 3.19+/-21.4 3.19 +/- 21.4 3.11 +/- 20.8
-6.85 +/- 11.5
-6.94 +/- 11.6
-5.86 +/- 9.80 December 10
-8.88 +/- 23.3
-8.62 +/- 22.6
-8.74 +/- 23.0
-8.83 +/- 23.2 3.65 +/- 14.6 3.57 +/- 14.3 3.61 +/- 14.4 3:67 +/- 14.7 December 17
-12.0 +/- 21.2
-11.6 +/- 20.6
-11.7+/-20.8
-12.0 +/- 21.2
-1.93 +/- 11.7
-1.88 +/- 11.4
-1.91 +/- 11.6
-1.92 +/- 11.7 December 23
-5.75 +/- 11.0
-13.3 +/- 25.4
-13.5 +/- 25.8
-13.6 +/- 26.0
-13.3 +/- 25.4
-6.06 +/- 16.8
-6.10 +/- 16.9
-5.15 +/- 14.3 December 31
-8.23 +/- 11.1
-7.99 +/- 10.7
-7.12 +/- 9.56
-8.49 +/- 11.4
-8.27 +/- 11.1
-1.24 +/- 15.8
-1.25 +/- 15.9
-0.53 +/- 6.70 A:< MDC 33
~-------- -----
TABLE 3-5: GAMMA EMITTER CONCENTRATION IN FILTERED AIR Surry Power Station, Surry County, Virginia - 2019 1.0E-3 pCi/m3 +/- 2 Sigma Page I of!
SAMPLING FIRST SECOND THIRD FOURTH AVERAGE LOCATIONS NUCLIDE QUARTER QUARTER QUARTER QUARTER
+/-2SIGMA ss Cs-134
-0.96 +/- 0.92 0.22 +/- 0.93
-0.25 +/- 0.70
-0.57 +/- 0.60 Cs-137 0.17 +/- 0.75 0.50 +/- 0.81
-0.06 +/- 0.55
-0.08 +/- 0.55 Be-7 151 +/- 25.3 165 +/- 34.4 156 +/- 23.7 109 +/- 18.1 145 +/- 49.7 HIR Cs-134 0.03 +/- 0.68
-0.42 +/- 0.65
-0.32 +/- 0.78
-0.53 +/- 0.83 Cs-137 0.81
+/- 0.74A 0.48 +/- 0.66 0.69 +/- 0.67 A
-0.33 +/- 0.78 Be-7 194 +/- 34.3 159 +/- 23.4 150 +/- 22.6 115 +/- 23.0 155 +/- 64.9 BC Cs-134 0.26 +/- 1.09
-0.03 +/- 1.19 0.21 +/- 0.68
-0.13 +/- 0.43 Cs-137
-0.39 +/- 0.72
-0.20 +/- 0.87
-0.27 +/- 0.60 0.18 +/- 0.59 Be-7 198 +/- 29.4 176 +/- 30.1 157 +/- 23.7 12'2 +/- 21.4 163 +/- 64.4 ALL Cs-134
-0.37 +/- 0.75 0.12 +/- 0.81 1.03 +/- 0.96A -0.78 +/- 0.88 Cs-137 0.01
+/- 0.70 0.96 +/- 0.734A 0.12 +/- 0.91
-0.08 +/- 0.77 Be-7 151 +/- 27.9 129 +/- 28.4 141 +/- 27.7 97.6 +/- 19.6 130 +/- 46.4 K-40 21.3 +/- 13.7 21.3+/-13.7 CP Cs-134
-0.10 +/- 1.16 0.39 +/- 0.66
-0.32 +/- 1.04
-0.76 +/- 0.68 Cs-137
-0.45 +/- 1.03
-0.11
+/- 0.49 0.37 +/- 0.83 0.26 +/- 0.54 Be-7 190 +/- 35.0 155 +/- 27.6 124 +/- 25.3 114 +/- 20.5 146 +/- 68.6 BASF Cs-134
-0.45 +/- 0.69
-0.18 +/- 0.77
-0.05 +/- 0.80
-0.04 +/- 0.89 Cs-137
-0.36 +/- 0.65 0.13 +/- 0.64 0.34 +/- 0.64 0.38 +/- 0.65 Be-7 188 +/- 27.5 191 +/- 30.1 159 +/- 24.4 131
+/- 23.2 167 +/- 56.3 FE Cs-134 0.50 +/- 0.95
-0.19 +/- 0.70
-0.14 +/- 0.86
-0.19 +/- 1.06 Cs-137 0.32 +/- 0.90 0.43 +/- 0.59
-0.05 +/- 0.53 0.76 +/- 0.87 Be-7 155 +/- 24.1 143 +/- 22.3 142 +/- 23.6 131
+/- 25.5 143 +/- 19.6 NN-C Cs-134
-0.24 +/- 0.83
-0.23 +/- 0.89 0.12 +/- 0.86
-0.54 +/- 0.80 Cs-137
-0.40 +/-.0.61
-0.08 +/- 0.79 0:10 +/- 0.74
-0.01
+/- 0.72 Be-7 154 +/- 23.3 149 +/- 29.1 150 +/- 29.3 143 +/- 25.7 149 +/- 9.1 A: <MDC 34
TABLE 3-6: GAMMA EMITTER AND STRONTIUM CONCENTRATIONS IN MILK Surry Power Station, Surry County, Virginia - 2019 pCi/Liter +/- 2 Sigma Page 1 of3 COLONIAL BEACHY NUCLIDE EPPS PARKWAY FARM-C JANUARY Cs-134 0.61
+/- 5.73 0.72 +/- 5.96
-1.89 +/- 5.35 Cs-137
-1.31
+/- 5.55 2.85 +/- 5.52 1.11 +/- 4.50 Ba-140 0.48 +/- 22.9
-9.59 +/- 23.8 0.91
+/- 18.2 La-140 1.64 +/- 5.85
-4.29 +/- 8.16
-0.60 +/- 5.75 1-131
-0.33 +/- 0.29
-0.25 +/- 0.32 0.18 +/- 0.33 K-40 1,300 +/- 146 1,140 +/- 181 1110 +/- 164 FEBRUARY Cs-134 0.11
+/- 6.79
-0.77 +/- 4.42
-3.43 +/- 5.46 Cs-137 5.65 +/- 5.78
. 0.93 +/- 4.63 1.98 +/- 5.58 Ba-140 12.4 +/- 25.7 8.50 +/-.19.5
-6.95 +/- 23.6 La-140 3.26 +/- 5.76
. -2.95 +/- 5.58
-5.16 +/- 5.94 1-131
-0.28 +/- 0.32 0.24 +/- 0.29
-0.14 +/- 0.41 K-40 1250 +/- 162 1170 +/- 178 1020 +/- 138 MARCH Cs-134 1.85 +/- 6.26 0.88 +/- 3.82 5.10 +/- 5.67 Cs-137 1.~7 +/- 5.83 3.05 +/- 3.58 2.03 +/- 4.86 Ba-140 2.53 +/- 23.4
-0.13 +/- 16.8
-17.0 +/- 26.1 La-140 1.94 +/- 7.12
- 1.53 +/- 5.57 2.46 +/- 6.32 1-131
-0.33 +/- 0.51
-0.35 +/- 0.33
-0.06 +/- 0.30 K-40 1080 +/- 138 1010 +/- 139 898 +/- 130 Sr-89 0.93 +/- 2.52 Sr-90 1.28 +/- 0,55 APRIL Cs-134 4.06 +/- 3.81 A 2.54 +/- 4.21
-0.82 +/- 4.41
. Cs-137 *
-1.53 +/- 3.56
-5.21
+/- 4.20 2.80 +/- 4.04 Ba-140 8.17 +/- 18.3
-0.16 +/- 20.0
-11.9 +/- 18.2 La-140
-0.33 +/- 5.87 2.12 +/- 7.13
-0.33 +/- 7.07 1-131
-0.01
+/- 0.36 0.21
+/- 0.41 0.52 +/- 0.49A K-40 1290 +/- 164 1200 +/- 157 827 +/- 169 A: <MDC 35
TABLE 3-6: GAMMA EMITTER AND STRONTIUM CONCENTRATIONS IN MILK Surry Power Station, Surry County, Virginia - 2019 pCi/Liter +/- 2 Sigma Page2 of3 COLONIAL BEACHY NUCLIDE EPPS PARKWAY FARM-C MAY Cs-134
-1.02 +/- 4.57 0.55 +/- 5.57 2.56 +/- 4.78 ts-137 0.62 +/- 4.64 2.62 +/- 5.47 4.91 +/- 3.89 Ba-140
-20.1
+/- 19.7 1.42 +/- 21.9 7.06 +/- 15.9 La-140 0.75 +/- 5.25 4.90 +/- 7.42
-2.61
+/- 4.53
- 1-131
-0.19 +/- 0.34
-0.06 +/- 0.42
-0.74 +/- 0.44 K-40 1400 +/- 197 1280 +/- 182 1280 +/- 172 JUNE Cs-134
-1.91
+/- 4.46
-0.39 +/- 4.42
-2.01
+/- 5.43 Cs-137
-3.65 +/- 4.06
-0.53 +/-. 5.21 0.22 +/- 5.61 Ba-140 3.14 +/- 15.4 4.78 +/- 17.7 7.04 +/- 25.9 La-140
-0.74 +/- 3.03
-1.23 +/- 5.47 *.
-3.08 +/- 7.67 1-131
- 0.25 +/- 0.29
-0.03 +/- 0.39 0.31
+/- 0.39 K-40 1520 +/- 191 1340 +/- 197 1280 +/- 183 Sr-89
-0.25 +/- 2.37 Sr-90 0.89 +/- 0.63A JULY cs~134
-0.05 +/- 4.67 2.27 +/- 6.93 2.49 +/- 4.01 Cs-137 0.58 +/- 4.69 2.62 +/- 6.32 3.16 +/- 5.22 Ba-140
-30.1 +/- 23.2 16.8 +/- 29.3 7.50 +/- 18.3 La-140
-2.48 * +/- 5.32 4.69 +/- 5.91
-0.01 +/- 5.77 1-131
-0.02 +/- 0.51 0.03 +/- 0.37 *
-0.15 +/- 0.41 K-40 1380 +/- 163 1070 +/- 174 1300 +/- 191 AUGUST Cs-134
-1.40 +/- 4.25
-6.88 +/- 6.04 2.58 +/- 5.69 Cs-137 4.26 +/- 5.29
-3.44 +/- 4.94 2.31
+/- 5.95 Ba-140 3.77 +/- 14.2 11.3 +/- 18.0 2.75 +/- 19.1 La-140 3.03 +/- 4.31
-1.86 +/- 6.02 0.27 +/- 5.49 1-131
-0.12 +/- 0.37 0.19 +/- 0.35
-0.10 +/- 0.33 K-40 1410 +/- 176 1150 +/- 199 1130 +/- 197 A: <MDC 36
TABLE 3-6: GAMMA EMITTER AND STRONTIUM CONCENTRATIONS IN MILK Surry Power Station, Surry County, Virginia - 2019 pCi/Liter +/- 2 Sigma Page3 of3 COLONIAL BEACHY NUCLIDE EPPS PARKWAY FARM-C SEPTEMBER Cs-134 2.04 +/- 4.08 5.32 +/- 5.85
-0.49 +/- 3.68 Cs-137 1.77 +/- 4.26
-0.83 +/- 6.61 2.69 +/- 3.65
'Ba-140 1.86 +/- 17.8
-4.46 +/- 26.9
-10.5 +/- 13.8 La-140 2.21 +/- 6.13 4.56 +/- 8.33
-1.66 +/-. 4.60 1-131 0.47 +/- 0.47 A
-0.25 +/- 0.45
-0.18 +/- 0.55 K-40 1160 +/- 159 1480 +/- 188 1200 +/- 144 Sr-89 2.54 +/- 3.06 Sr-90 1.23 +/- 0.61 OCTOBER Cs-134 1.30 +/- 5.25 1.68 +/- 2.52
-2.64* +/- 4.27 Cs-137
-0.34 +/- 5.96
-0.60 +/- 2.40
-2.56 +/- 4.33 Ba-140
-1.50 +/- 26.3 5.38 +/- 8.72
-3.38 +/- 18.8 La-140
-1.32 +/- 7.52 1.51 +/- *2.58.
-1.81 +/- 7.06 1-131
-0.20 +/- 0.36 0.38 +/- 0.48 0.32 +/- 0.43 K-40 1410 +/- 196 1150 +/- 99.3 1220 +/- 168 NOVEMBER Cs-134 4.50 +/- 4.18A
-0.10 +/- 5.23
-1.52 +/- 4.20 Cs-137
-1.34 +/- 4.72 2.08 +/- 4.79
-4.18 +/- 4.66 Ba-140 3.13 +/- 14.6 0.99 +/- 21.7 15.4 +/- 17.7 La-140
-2.59 +/- 4.61 4.32 +/- 7.14
-0.82 +/- 4.96 1-131
-0.27 +/- 0.53
-0.06 +/- 0.42 o.oo. +/- 0.44 K-40 1440 +/- 183 1350 +/- 203 1120 +/- 182 DECEMBER Cs-134
-2.46 +/- 4.98
-3.59 +/- 6.18
-1.27 +/- 4.50 Cs-137 1.09 +/- 4.88
-1.72 +/- 5.27
-0.38 +/- 4.68 Ba-140
-0.09 +/- 23.4
- 15.1 +/- 26.0 27.0 +/- 21.3A La-140 1.91 +/- 6.16
-4.60 +/- 7.56 0.74 +/- 8.31 1-131
-0.07 +/- 0.51
-0.13 +/- 0.57 0.05 +/- 0.43 K-40 1370 +/- 188 1420 +/- 197 981 +/- 158 Sr-89 2.64 +/- 2.45A Sr-90 1.46 +/- 0.67 A: <MDC 37
TABLE 3-7: GAMMA EMITTER CONCENTRATION IN FOOD PRODUCTS Surry Power Station, Surry County, Virginia - 2019 pCi/k (wet) +/- 2 Sigma SAMPLING COLLECTION SAMPLE Page 1 ofl LOCATIONS DATE TYPE ISOTOPE Cs-134 Cs-137 1-131 K-40 BROCK 11/5/2019 Peanuts
-5.56 +/- 23.6 8.73 +/- 19.1 19.1 +/- 24.1 7010 +/- 805 FARM 11/5/2019 Corn 0.65 +/- 10.8
-11.6 +/- 9.71
-8.29 +/- 11.8 3430 +/- 463 Cs-134 Cs-137 1-131 K-40 SLADE 11/26/2019 Soybeans
-14.3 +/- 22.0
-1.63 +/- 20.5 27.5 +/- 25.9 17800 +/- 1260 FARM 38
TABLE 3-8: GAMMA EMITTER AND TRITIUM CONCENTRATIONS IN WELL WATER Sµrry Power Station, Surry County, Virginia - 2019 pCi/Liter +/- 2 Sigma Page I of2 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 Zn-65 ss 3/5/2019
-2.64 +/- 3.34 0.65 +/- 3.82
-4.52 +/- 8.36 3.58 +/- 4.90
-5.17 +/- 8.68 6/4/2019 0.99 +/- 3.56
-0.82 +/- 3.01 5.48 +/- 7.13 0.57 +/- 3.46
-7.86 +/- 7.07 9/4/2019 2.79 +/- 3.20
-0.14 +/- 3.39
-1.28 +/- 9.05 2.82 +/- 4.27
-9.27 +/- 9.71 12/5/2019
-3.72 +/- 3.91 0.06 +/- 4.16 4.21 +/- 7.04 0.67 +/- 3.77
-9.21 +/- 9.36 Nb-95 Zr-95 1-131 Cs-134 Cs-137 3/5/2019 0.08 +/- 3.08 8.39 +/- 7.76A 0.35 +/- 0.47 0.17 +/- 2.53
-1.22 +/- 3.35 6/4/2019 2.81 +/- 4.09
-0.01 +/- 6.25 0.00 +/- 0.48
-4.39 +/- 4.12
-2.79 +/- 4.07 9/4/2019
-2.12 +/- 4.72
-5.00 +/- 6.04 0.03 +/- 0.31
-2.15 +/- 4.59 1.1 ci +/- 3.61 12/5/2019 5.83 +/- 3.82 A 0.83 +/- 6.36
-0.38 +/- 0.38
-0.74 +/- 3.63 0.71 +/- 3.78 Ba-140 La-140 H-3 3/5/2019 14.4 +/- 15.9
-3.39 +/- 6.10 80.4 +/- 663 6/4/2019
-1.07 +/- 17.2 0.48 +/- 5.02 279 +/- 841 9/4/2019
-1.48 +/- 14.8 1.84 +/- 4.12
-12.8 +/- 531 12/5/2019
-0.59 +/- 15.9 0.99 +/- 4.90
-60.1 +/- 171 Mn-54 Co-58 Fe-59 Co-60 Zn-65 HIR 3/5/2019
-0.65 +/- 3.30
-2.82 +/- 3.45
-3.94 +/- 7.23 2.20 +/- 2.67 1.99 +/- 8.94 6/4/2019
-2.45 +/- 3.28 0.45 +/- 3.06
-0.63 +/- 6.22
-1.08 +/- 4.00
-2.07 +/- 7.68 9/10/2019
-0.78 +/- 3.52
-0.06 +/- 3.49
-0.87 +/- 8.32 0.14 +/- 3.23
-10.4 +/- 8.90 12/5/2019
-3.72 +/- 4.30
-0.31 +/- 3.84 8.10 +/- 7.99A
-0.44 +/- 3.32
-11.8 +/- 10.2 Nb-95 Zr-95 1-131 Cs-134 Cs-137 3/5/2019 1.52 +/- 3.68
-1.10 +/- 6.64
-0.90 +/- 0.33 1.08 +/- 3.86 0.52 +/- 3.67 6/4/2019
-1.04 +/- 3.17
-4.44 +/- 6.05
-0.04 +/- 0.42 0.28 +/- 3.00
-0.02 +/- 3.50 9/10/2019
-2.40 +/- 4.08
-2.12 +/- 6.41
-0.04 +/- 0.48 4.79 +/- 3.95A 0.53 +/- 3.89 12/5/2019 2.15 +/- 4.37
-3.59 +/- 6.84
-0.37 +/- 0.38
-4.79 +/- 5.17
-0.36 +/- 4.30 Ba-140 La-140 H-3 3/5/2019
-15.5 +/- 14.0 3.50 +/- 5.10 204 +/- 653 6/4/2019
-7.65 +/- 16.3 1.83 +/- 4.03
-74.0 +/- 794 9/10/2019
-10.8 +/- 14.7 0.03 +/- 3.45
-280 +/- 544 12/5/2019
-2.59 +/- 17.4
-4.00 +/- 5.94 22.2 +/- 177 A:< MDC 39
TABLE 3-8: GAMMA EMITTER AND TRITIUM CONCENTRATIONS IN WELL WATER Surry Power Station, Surry County, Virginia - 2019 pCi/Liter +/- 2 Sigma Page2 of2 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 Zn-65 TC 3/5/2019 2.57 +/- 3.34 1.14 +/- 3.47 0.29 +/- 6.94 1.79 +/- 2.97
-0.27 +/- 7.85 6/4/2019 0.48 +/- 2.37 0.10 +/- 2.88 1.19 +/- 7.20 0.04 +/- 3.01
-1.15 +/- 6.81 9/10/2019
-0.59 +/- 4.46 1.97 +/- 4.90
-2.05 +/- 6.86 1.62 +/- "4.72
-1.88 +/- 10.3 12/5/2019
-0.71 +/- 3.13
-0.35 +/- 3.48 3.69 +/- 6.86 2.18 +/- 3.74
-15.0 +/- 11.1 Nb-95 Zr-95 1-131 Cs-134 Cs-137 3/5/2019 0.64 +/- 3.09
-0.19 +/- 5.45 0.18 +/- 0.35 2.05 +/- 4.12 0.29 +/- 3.94 6/4/2019
-0.87 +/- 3.06 2.31 +/- 5.01 0.10 +/- 0.38 1.74 +/- 3.01 0.75 +/- 3.28 9/10/2019 4.95 +/- 5.37 4.91 +/- 6.57 0.14 +/- 0.57
-0.74 +/- 4.74
-0.63 +/- 5.29 12/5/2019 1.11 +/- 3.66
-3.66 +/- 5.89
-0.10 +/- 0.45
-2.85 +/- 3.33
-3.07 +/- 3.91 Ba-140 La-140 H-3 3/5/2019 1.43 +/- 13.8 0.98 +/- 6.12 280 +/- 664 6/4/2019 5.49 +/- 14.4
-1.05 +/- '4.67 300 +/- 840 9/10/2019 6.86 +/- 15.4 1.00 +/- 6.58 148 +/- 583 12/5/2019
-6.96 +/- 15.3 3.46 +/- 3.71 83.0 +/- 184 40
TABLE 3-9: GAMMA EMITTER AND TRITIUM CONCENTRATIONS IN RIVER WATER Surry Power Station, Surry County, Virginia - 2019 pCi/Liter +/- 2 Sigma Page I of2 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 Zn-65 SD 1/2/2019 1.73 +/- 2.82
-2.55 +/- 3.46 5.74 +/- 7.10
-0.84 +/- 4.02
-5.61 +/- 8.25 2/11/2019 1.47 +/- 1.77
-1.36 +/- 1.74
-0.21 +/- -;U9 1.08 +/- 2.32
-0.42 +/- 4.29 3/19/2019 1.13 +/- 3.91 1.06 +/- 4.06
-4.87 +/- 9.12
-1.33 +/- 4.87
-8.33 +/- 10.3 4/10/2019 1.19 +/- 3.31
-0.35 +/- 3.04
-1.86 +/- 6.09 3.47 +/- 4.11
-8.11 +/- 8.15 5/14/2019
-2.79 +/- 3.39
-0.74 +/- 3.65
-0.12 +/- 6.43
-1.98 +/- 4.64 1.58 +/- 8.15 6/4/2019
-1.73 +/- 3.84 2.51 +/- 3.72
-2.47 +/- 6.92 0.43 +/- 3.21
-2.00 +/- 8.71 7/2/2019 0.65 +/- 4.25 2.69 +/- 3.41
-3.38 +/- 7.78 1.69 +/- 3.85 5.08 +/- 8.04 8/6/2019
-1.02 +/- 2.84
-0.29 +/- 3.04 2.69 +/- 6.34
-0.70 +/- 3.42
-4.32 +/- 7.87 9/3/2019
-1.24 +/- 3.06
-0.52 +/- 3.05
-7.03 +/- 8.58
-0.16 +/- 4.11
-2.67 +/- 11.3 10/21/2019.
0.78 +/- 4.11 0.60 +/- 3.91
. -6.82 +/- 8.50 2.43 +/- 3.95
-19.9 +/- 12.7 11/26/2019
-0.82 +/- 2.84 0.27 +/- 2.92
-0.59 +/- 6.39 1.43 +/- 3.46
-0.06 +/- 6.78 12/3/2019 0.68 +/- 3.05
-0.90 +/- 2.76
-3.26 +/- 6.53 0.68 +/- 3.39
-2.86 +/- 7.19 Nb-95 Zr-95.
1-131 Cs-134 Cs-137 1/2/2019 1.06 +/- 2.80
-0.19 +/- 5.97 4.00 +/- 4.69 3.25 +/- 3.. 75
-1.44 +/- 3.57 2/11/2019 0.30 +/- 1.96
-0.86 +/- 3.11
-0.77 +/- 2.34 2.54 +/- 2.00A
-0.75 +/- 1.84 3/19/2019
-2.70 +/- 4.03 1.40 +/- 7.58
-4.82 +/- 5.77 0.92 +/- 5.33
-2.28 +/- 4.63 4/10/2019
-0.93 +/- 3.31
-3.05 +/- 6.53 2.99 +/- 5.58
-0.65 +/- 3.87 0.55 +/- 3.49 5/14/2019 0.61 +/- 4.12 5.57 +/- 6.05 1.31 +/- 4.26
-0.27 +/- 3.37 0.10 +/- 3.73 6/4/2019 0.52 +/- 3.35
-1.36 +/- 6.17
-4.23 +/- 6.11 1.97 +/- 3.75 1.08 +/- 3.79 7/2/2019 2.58 +/- 4.24 1.56 +/- 6.85 1.51 +/- 5.46
-1.59 +/- 3.85 6.58 +/- 4.16 A 8/6/2019
-1.16 +/- 3.13
-2.84 +/- 5.73
-1.16 +/- 3.46 0.79 +/- 3.42
-1.62 +/- 3.80 9/3/2019
-1.68 +/- 4.21
-3.38 +/- 6.73 3.45 +/- 4.35 3.56 +/- 4.48
-2.21 +/- 4.00 10/21/2019 3.68 +/- 4.80
-0.93 +/- 7.88 0.22 +/- 5.57
-2.43 +/- 4.38
-6.06 +/- 5.02 11/26/2019
-0.26 +/- 3.27 1.84 +/- 4.76
-0.75 +/- 4.95
-2.79 +/- 3.09
-0.06 +/- 2.89 12/3/2019
-0.13 +/- 3.20 0.19 +/- 5.39 1.57 +/- 5.59
-1.41 +/- 3.46
-0.55 +/- 3.19 Ba-140 La-140 H-3 K-40 1/2/2019
-1.25 +/- 14.3 0.67 +/- 2.74 2/11/2019
-0.11 +/- 7.42
-2.15 +/- 2.55 3/19/2019 6.84 +/- 18.6 0.83 +/- 5.41 131 +/- 457 4/10/2019
-0.61 +/- 14.5
-1.23 +/- 3.87 5/14/2019 6.13 +/- 14.4 0.22 +/- 5.18 6/4/2019
-0.31 +/- 17.1 0.38 +/- 5.17
-620 +/- 458 7/2/2019 8.67 +/- 15.1
-4.45 +/- 5.49 8/6/2019 3.92 +/- 11.0
-0.82 +/- 3.65 142 +/- 61.0 9/3/2019
-6.99 +/- 14.3 7.27 +/- 6.58A
-232 +/- 471 10/21/2019
-16.1 +/- 17.6 0.10 +/- 4.97 96.3 +/- 92.0 11/26/2019 5.93 +/- 15.0
-2.72 +/- 4.81 12/3/2019
-5.74 +/- 15.0 0.06 +/- 5.10 605 +/- 636 207 +/- 71.3 A:< MDC
- 41
TABLE 3-9: GAMMA EMITTER AND TRITIUM CONCENTRATIONS IN RIVER WATER Surry Power Station, Surry County, Virginia* 2019 pCi/Liter +/- 2 Sigma Page2of2 SAMPLING COLLECTION LOCATIONS DATE ISOTOPES Mn-54 Co-58 Fe-59 Co-60 Zn-65 SW-C 1/2/2019 2.00 +/- 3.50 1.79 +/- 3.55
-2.20 +/- 6.60 0.48 +/- 3.01
-4.43 +/- 7.21 2/12/2019
-0.37 +/- 3.89
-3.63 +/- 3.50 1.11 +/- 7.87 1.00 +/- 3.14 1.50 +/- 8.19 3/19/2019
-0.20 +/- 3.63
-3.32 +/- 3.97 5.27 +/- 7.51
-1.05 +/- 3.75
-4.56 +/- 8.48 4/16/2019 2.50 +/- 3.28
-2.96 +/- 3.75 1.36 +/- 6.99 *
-0.78 +/- 3.55
-7.33 +/- 8.91 5/14/2019 1.35 +/- 2.45 1.50 +/- 3.55 0.50 +/- 7.31 2.74 +/- 3.65 8.45 +/- 7.85A 6/4/2019
-1.76 +/- 3.49
-0.27 +/- 3.06 1.81 +/- 6.63 0.67 +/- 3.34
-3.29 +/- 6.69 7/2/2019
-2.99 +/- 2.95
-0.66 +/- 3.22 0.72 +/- 5.86
-0.32 +/- 2.99
-1.40 +/- 7.94 8/6/2019 2.45 +/- 3.41
-0.03 +/- 3.71
-0.71 +/- 6.03 1.91 +/- 4.07
-5.82 +/- 7.98 9/3/2019
-1.48 +/- 3.59 3.94 +/- 4.00
-1.00 +/- 7.93
-1.30 +/- 3.82
-8.35. +/- 10.4 10/22/2019
-0.24 +/- 4.27
-0.69 +/- 4.15
-5.42 +/- 7.35 0.93 +/- 4.67
-20.7 +/- 11.6 11/26/2019 0.43 +/- 3.59
-3.01 +/- 3.09 4.45 +/- 7.66
-0.20 +/- 3.19
-10.1 +/- 7.42 12/3/2019 2.62 +/- 3.61
-2.51 +/- 3.55 4.45 +/- 7.47
-0.67 +/- 3.86
-13.1 +/- 8.91 Nb-95 Zr-95 1-131 Cs-134 Cs-137 1/2/2019 3.26 +/- 3.70
-3.58 +/- 5.74
-2.46 +/- 5.53 1.78 +/- 4.20
-1.18 +/- 3.61 2/12/2019
-0.80 +/- 4.04 0.43 +/- 6.34
-1.83 +/- 4.38
-1.05 +/- 4.51 0.33 +/- 4.12 3/19/2019
-1.17 +/- 4.20
-0.31 +/- 7.13
-0.08 +/- 5.31
-0.08 +/- 4.45
-0.97 +/- 4.32
. 4/16/2019 1.71 +/- 3.37 0.07 +/- 5.25.
-0.82 +/- 4.69 1.58 +/- 4.37
-1.90 +/- 3.88 5/14/2019
-1.63 +/- 3.72
-1.69 +/- 5.60
-3.01 +/- 4.44 0.17 +/- 3.67 0.52 +/- 3.91 6/4/2019 0.99 +/- 3.61
- 3.37 +/- 4.99
-3.45 +/- 4.30
-0.87 +/- 3.50
-0.73 +/- 3.01 7/2/2019 2.99 +/- 2.98A 0.73 +/- 4.99 2.19 +/- 4.01 4.15 +/- 3.20A -0.28 +/- 3.30 8/6/2019
-1.86 +/- 3.51 7.20 +/- 6.57 A 4.28 +/- 4.13A -1.18 +/- 3.88
-3.93 +/- 3.45 9/3/2019
-0.69 +/- 4.52 1.90 +/- 5.15 0.83 +/- 4.97
-2.20 +/- 3.60
-0.50 +/- 4.00 10/22/2019 0.93 +/- 4.67*
2.96 +/- 7.25
-2.68 +/- 4.67 1.71 +/- 4.09 0.21 +/- 4.67 11/26/2019 2.23 +/- 3.38 2.26 +/- 5.69
-1.76 +/- 5.40
-0.88 +/- 3.67
-0.24 +/- 3.97 12/3/2019 1.86 +/- 3.50
-0.16 +/- 6.34
-6.78 +/- 6.19 2.32 +/- 4.21 0.24 +/- 4.17 Ba-140 La-140 H-3 K-40 Ra-226 1/2/2019
-3.12 +/- 19.2 0.18 +/- 4.67 2/12/2019 1.15 +/- 13.8
-1.61 +/- 4.71 3/19/2019 5.63 +/- 17.5
-0.30 +/- 4.55
-45.9 +/- 444 4/16/2019 15.0 +/- 13.1 A
-4.17 +/- 5.37 267 +/- 189 5/14/2019
-10.2 +/- 14.5
-1.88 +/- 4.15 6/4/2019
-3.27 +/- 13.0 1.36 +/- 3.52
-416 +/- 465 7/2/2019 0.68 +/- 12.2
-1.39 +/- 3.53 8/6/2019
-4.69 +/- 14.4
-0.82 +/- 4.15 62.2 +/- 58.4 9/3/2019
-12.9 +/- 16.3 1.17 +/- 4.30 302 +/- 507 10/22/2019 4.70 +/- 15.8 5.74 +/- 5.06 A 11/26/2019 1.47 +/- 15.3 3.68 +/- 6.42 12/3/2019
-5.09 +/- 17.3
-1.18 +/- 5.82 455 +/- 620 91.6 +/- 74.1 A: <MDC 42
TABLE 3-10: GAMMA EMITTER CONCENTRATIONS IN SILT Surry Power Station, Surry County, Virginia - 2019 pCi/kg (dry) :I:: 2 Si ma Page 1 ofl SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Cs-134 Cs-137 K-40 Th-228 Th-232 SD 3/11/2019 70.6 +/- 76.8 225 +/- 114 18000 +/- 2220 1490 +/- 181 1190 +/- 262 9/11/2019 87.5 +/- 63.4A 164 +/- 99.2 16400 +/- 1990 1280 +/- 185 1110 +/- 295 Ra-226 Be-7 3/11/2019 5080 +/- 2700 9/11/2019 2110 +/- 1040 Cs-134 Cs-137 K-40 Th-228 Th-232 CHIC-C 3/11/2019 26.9 +/- 81.0 112 +/- 79.4A 17000 +/- 2290 1270 +/- 231 1280 +/- 287 9/25/2019 2.61 +/- 66.0 92.6 +/- 65.3 A 16500 +/- '1880 1450 +/- 175 1370 +/- 245 Ra-226 3/11/2019 9/25/2019 3800- +/- 2050 Cs-134 Cs-137 K-40 Th-228 Th-232 SI 3/11/2019 95_0* +/- 99.8 126.+/- 78.3 A 20400 +/- 2420 1740 +/- 187 1480 +/- 257 9/12/2019 47.9 +/- 60.5 112 +/- 73.5.A 12400 +/- 2290 880 +/- 184 1020 +/- 267 Ra-226 Be-7 3/11/2019 3090 +/- 2290 3170 +/- 1310 9/12/2019 A:< MDC 43
TABLE 3-11: GAMMA EMITTER CONCENTRATIONS1N SHORELINE SEDIMENT Surry Power Station, Surry County, Virginia - 2019 pCi/kg (dry)+/- 2 Sigma SAMPLING COLLECTION LOCATIONS DATE Cs-134 HIR 2/11/2019 5.87* +/- 18.3 8/6/2019 0.16 +/- 27.5 Cs-134
. CHIC-C 2/12/2019 30.9 +/- 45.5 8/6/2019 28.2 +/- 38.8 A:< MDC Cs-137 8.05 +/- 17.9
-10.7 +/- 26.3 Cs-137 126 +/- 83.6 1.77 +/- 31.8 44 ISOTOPE K-40 3820 +/- 690 6140 +/- 1090
- Page I of!
K-40 Th-228 10200 +/- 1200 909 +/- 105 1510 +/- 740 278 +/-. 121 Th-232 866 +/- 194
TABLE 3-12: GAM.MA EMITTER CONCENTRATION IN FISH Surry.Power Station, Surry County, Virginia-2019 pCi/kg (wet) +/- 2 Sigma Page 1 ofl SAMPLING COLLECTION SAMPLE LOCATION DATE TYPE ISOTOPE K-40 Mn-54 Co-58.
Fe-59 SD 4/3/2019 Catfish 1840 +/- 727 4.35 +/- 30.0
-13.1 +/- 30.6
-0.33 +/- 76.2 4/3/2019 Game fish 2440 +/- 835 13.8 +/- 37.1 2.12 +/- 34.9 20.4 +/- 102 10/23/2019 Catfish 1350 +/- 675
-4.79 +/- 24.8
-1.00 +/- 29.7 0.01 +/- 53.3 10/15/2019 Game fish 2590 +/- 921 13.5 +/- "37.3
-11.2 +/- 36.4
-78.1 +/- 90.1 Co-60 Zn-65 Cs-134 Cs-137 4/3/2019 Catfish
-3.50 +/- 31.2
-32.9 +/- 57.8 10.2 +/- 33.2
-4.01 +/- 31.3 4/3/2019 Game fish
-22.5 +/- 47.7
-70.5 +/- 104 41.5 +/- 43.1 5.01 +/- 37.2 10/23/2019 Catfish 13.5 +/- 27.7
-88.2 +/- 73.7
-4.50 +/- 33.2 4.10 +/- 29.9 10/15/2019 Game fish 27.8 +/- 33.1
-202 +/- 107
-20.8 +/- 39.1 53.4 +/- 38.6 A A:< MDC
, - 45
TABLE 3-13: GAM.MA EMITTER CONCENTRATIONS IN OYSTERS Surry Power Station, Surry County, Virginia - 2019 pCi/kg (wet) +/- 2 Sigma Page 1 ofl SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 POS 3/13/2019 9.84 +/- 52.1
-28.0 +/- 70.7
-132 +/- 151 26.4 +/- 46.6 9/12/2019 2.18 +/- 23.7 16.1
+/- 32.4 47.5 +/- 78.0 13.0 +/- 22.2 Zn-65 Cs-134 Cs-137 K-40 3/13/2019
- -71.5 +/- 106 8.83 +/- 51.9 42.3 +/- 54.2 9/12/2019 34.4 *+/- 56.0
-7.24 +/- 26.0 16.0 +/- 22.9 695 +/- 399 Mn-54 Co-58 Fe-59 Co-60 MP 3/12/2019
-15.7 +/- 40.9
-37.4 +/- 47.2 25.5 +/- 93.0
-5.00 +/- 43.7 9/12/2019
-0.92 +/- 20.0
-0.62 +/- 29.1 8.48 +/- 69.3
-0.81
+/- 18.6 Zn-65 Cs-134 Cs-137 K-40 3/12/2019
-37.1
+/- 97.0
-7.80 +/- 49.4 7.91
+/- 39.0 9/12/2019.
-60.7 +/- 45.7
-1.06 +/- 23.3 14.8 +/- 19.3 540 +/- 376 Mn-54 Co-58 Fe-59 Co-60 SHI 3/13/2019 20.0 +/- 44.5
-56.4 +/- 57.9 1.53 +/- 126 21.6 +/- 37.2 9/12/2019 5.17 +/- 16.1 5.45 +/- 22.9
-2.46 +/- 60.5
-0.04 +/- 20.7 Zn-65 Cs-134 Cs-137 K-40 3/13/2019 68.5 +/- 104 8.27 +/- 51.8
-22.9 +/- 42.1 9/12/2019
-46.0 +/- 37.7 16.2 +/- 16.9 0.60 +/- 14.9 787 +/- 290 A: <MDC 46
TABLE 3-14: GAM.MA EMITTER CONCENTRATIONS IN CLAMS Surry Power Station, Surry County, Virginia - 2019 pCi/kg (wet) +/- 2 Sigma Page 1 ofl SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 JI 3/12/2019
-6.07 +/- 47.8
-17.8 +/- 58.6 111 +/- 117 26.4 +/- 29.0 9/25/2019
-14.6 +/- 20.6 0.34 +/- 22.4 2.17 +/- 60.1
-2.73 +/- 19.6 Zn-65 Cs-134 Cs-137 K-40 3/12/2019
-36.3 +/- 101 8.21 +/- 44.4 21.5 +/- 42.1 9/25/2019
-57.1
+/- 48.0
-7.85 +/- 21.3 18.5 +/- 20.8 687 +/- 509 Mn-54 Co-58 Fe-59 Co-60 SD 3/11/2019
-15.9 +/- 43.1 16.4 +/- 48.9 42.1
+/- 134
-29.1
+/- 40.3 9/25/2019
-2.70 +/- 13.5
-1.87 +/- 17.5 43.5 +/- 44.2
-1.73 +/- 14.5 Zn-65 Cs-134 Cs-137 K-40 3/11/2019.
41.5 +/- 104
-22.2 +/- 41.1 9.99 +/- 42.6 9/25/2019
-29.6 +/- 34.5
-6.93 +/- 15.5
-3.95 +/- 13.8 485 +/- 274 Mn-54 Co-58 Fe-59 Co-60 CHIC-C 3/11/2019 11.4 +/- 30.5
-20.7 +/- 44.4 11.7 +/- 100
-2.43 +/- 26.1 9/25/2019 0.82 +/- 15.4
-8.23 +/- 19.5 11.5 +/- 43.8 4.53 +/- 15.6 Zn-65 Cs-134 Cs-137 3/11/2019
-61.6 +/- 96.0 14.9 +/- 37.1
-18.9 +/- 42.6 9/25/2019
-22.8 +/- 38.3 2.54 +/- 16.1
-15.0 +/- 14.7 A:< MDC 47
TABLE 3-15: GAMMA EMITTER CONCENTRATIONS IN CRABS Surry Power Station, Surry County, Virgin!a - 2019 pCi/kg (wet) +/- 2 Sigma Page I ofl SAMPLING COLLECTION LOCATIONS DATE sp 6/4/2019 6/4/2019 K-40 1630 +/- 351 Co-60 13.6 +/- 15.8 ISOTOPE Mn-54
-2.63 +/- 15.6 Zn-65
-26.7 +/- 36.1 48 Co-58
-9.70 +/- 16.5 Cs-134 7.71 +/- 15.6 Fe-59
-9.25 +/- 36.1 Cs-137
-7.19 +/- 13.9
- 4. DISCUSSION OF RESULTS Data from the radiological analyses of environmental media collected during 2019 and tabulated in Section 3, are discussed below. The procedures and specifications followed in the laboratory for these analyses are as required in the Teledyne Brown Engineering quality assurance manuals and laboratory procedures. In addition to internal quality control measures performed by the laboratories, 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 Program are provided in Appendix B.
The predominant radioactivity detected throughout 2019 was from external sources, such as fallout from nuclear weapons tests (cesium-137) and naturally occurring radionuclides.
Naturally occurring nuclides, such as beryllium-7, radium-226, thorium-228, thorium-232 and potassium-40, were detected in numerous samples.
The following is a discussion and summary of the results of the environmental measurements taken during the 2019 reporting period.
49
4.3 Airborne Radioiodine Air is also continuously sampled for radioiodines by passing air through charcoal cartridges. Once a week, the charcoal cartridge samples are collected and analyzed.
The results of the analyses are presented in Table 3-4. All results are below the lower limit of detection. No positive iodine-131 was detected in air samples in 2019.
4.4 Air Particulate Gamma The air particulate filters from 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 potassium-40 and beryllium-7, which are produced by cosmic processes.
No man-made radionuclides were identified. These analyses confirm no effects from station effluents.
4.5 Animal Milk Analysis of milk samples is generally the most sensitive indicator of fission product exi.stence in the terrestrial environment. This, in combination with the significant human consumption of niilk, results in this pathway often being the most critical as it relates to station radiological effluents. This pathway also shows measurable
- amounts of nuclear weapons testing fallout. Therefore, this media needs to be carefully evaluated when determining the effects from station effluents.
Results of gamma spectroscopy indicate no detectable station related radioactivity was identified in milk samples in 2019. The results of the analyses are presented in Table 3-6. In years past, cesium-137 had been detected sporadically.
The occurrences were attributed to residual global fallout from past atmospheric weapons testing.
At the request of the Commonwealth of Virginia, a quarterly composite sample is prepared from the monthly milk samples from the Colonial Parkway collection station. The composite samples are analyzed for strontium-89 and strontium-90.
No strontium-89 was detected in the four composites analyzed. Strontium-90 was detected in two of the four composite samples, with an average concentration of 1.32 pCi/L. Strontium-90 is not a component of station radiological effluents and is a product of nuclear weapons testing fallout.
52
4.6 Food Products Three food product samples (corn, peanuts, and soybeans) were collected and analyzed by gamma spectroscopy. The results of the analyses are presented in Table 3-7. As expected, only naturally occurring potassium-40 was detected in all samples. No station related radioactivity was detected in this pathway.
- 4. 7 Well Water
- Well water is not considered to be affected by station operations because there are no discharges made to this pathway. However, Surry Power Station monitors well water quarterly ~.t three indicator locations. Well water samples are analyzed for gamma radiation and tritium.
- The results of these analyses are presented in Table 3-8. No station related radioactivity was detected in 2019. Historically, during the pre-operational period, no gamma emitting isotopes were detected.
- 4. 8 River Water Samples of the James River water are collected monthly and. the results are presented in Table 3-9. All samples are analyzed by gamma spectr~scopy. The monthly samples are also composited and analyzed_for tritium on a quarterly basis.
No positive tritium was detected. Orily nf3-tUrally occurring potassium-40 and radium-226 radionuclides were detected.* No station related radioactivity was detected.
53
4.9 Silt Silt is sampled to evaluate any buildup of radionuclides in the environment due to the operation of the station. Sampling of this pathway provides a good indication of the dispersion effects of effluents to the river. Buildup of radionuclides in silt could indirectly lead to increasing radioactivity levels in clams, oysters, crabs and fish.
Samples of silt are collected from three locations, one upstream, one downstream of the station and one in the dredge area of the station int~e. The station intake silt saµiple was added in third quarter pf 2017*to provideidat:;3...for future station intake* dr.etj.ging operations. The results of the gamma spectroscopy analyses are presented 1n * *Table. 3-:10.
- Naturally occurring beryllium-7;.
- potassium-40, radium-226, thorium-228; 'and thorium-232 were detected. Historically, cobalt-60 has been detected in samples obtained from the station discharge indicator location.
Cobalt...:60 has not been detected since 2003. A trend graph of cesium-137 and cobalt-60 concentrations is presented in Figures 4-4 and 4-5. The trend graph of cesium-137 is displayed in Figure 4-5. For three decades, the general concentration for* cesium-137 has continued to decrease. The trended data is the calculated average of the semi-annual sample analysis results.
The average concentration in the control sample continues to show a decreasing trend. The average concentration in the Station Discharge indicator sample also indicates an overall decreasing trend;. however, an increase in concentration was observed in 2018 and 2019. The increase in the silt cesium-137 concentration corresponds to the increase of cesium-137 discharged in the liquid waste effluent.
In 2019, the cesium-137 concentration in the liquid waste effluent pathway was reduced. A decreasing trend in the silt concentration is expected to follow. This location will continue to be monitored.
The Station Intake indicator sample was added to the REMP in 201 7. The additional sample is located in the dredge channel area at the station intake. The dredge channel is approximately 150' wide and 1750' in length. This location was added to support future station intake channel dredging operations. The trend for the station intake is currently being established and* carefully monitotedi -
The presence of cesium-137 in indicat~r locatidi1,.Statio_n)ntake, and control location, Chick is indicative of the accumii'la:tion, through runciff,'of cesium-137 into the James River from residual weapons testing fallout. Its.global'presence has been well documented.
SampJes. collected from the James River\\. during the pre-opera'.tion~ perj_od, "*irtdkated. the presence of cesium-137. Tlj;e pre-operational ay~rage cesiuin-137 concentration is indicated in Figure 4-5.
The highest silt indicator location in 2019 is the Station Discharge, with an average cesium-137 concentration of 225 pCi/kg. This concentration remains consistent with aquatic sediment Sflllples collected in control locations of the Jam.es River.
54
Figure 4-4:
COBALT-60 IN SILT 1.0E-+-04.....-------------------------------------.
~
'C Cl s 1.0E-+-02 t-+---------------'"""",..___~ ----------:.-----"77a..;:;;~,;;;t,,t.-::lr -l!=l
~
1.0E-+-01 +--------------------------------------,
Note: Station Intake added to REMP, 3rd Qtr 2017 l.OE-+-00 N
'<I"
\\0 00 0
N
'<I"
\\0 00 0
N
'<I"
\\0 00 0
N
~
\\0 00 0
~ :!:
~
00 t-t-
t-t-
00 00 00 00 00 °' °' °' °' °'
0 0
0 0 -
~ ~ ~ ~ ~ ~ ~ ~ ~ °'
~ ~ ~ ~
0 0
0 0
0 0
0 0
0 0
N N
N N
N N
N N
N N
-+- Control - Chickabominy
.....- Station Dischsgc LLD Avg
......_ Station Intake Chickahominy had detectable activity in 1982 and 1984 through 1994. Other years were <MDC, Minimum Detectable Concentration. Station Discharge was <MDC activity 1996 through 1998 and 2004 through 2019.
\\0 t-
°' -
00 t-
°' -
0 00
°' -
N
'<I" 00 00
°' °'
Figure 4-5:
CESIUM-137 IN SILT
\\0 00 00 00
°' °'
0 0
0 N
\\0 0
0 N
00 0
0 N
0 8
N Control-Chickahominy
-+- Station Dischaige Ave-Pre Op Required LLD 55
\\0 0 N 00 0
N
4.10 Shoreline Sediment Shoreline sediment, unlike river silt, may provide a direct dose to humans. Buildup of radionuclides along the shoreline may provide a source of direct exposure for those using the area for commercial and recreational uses.
The results are presented in Table 3-11.
The naturally occurring radionuclides potassium-40, radium-226, thorium-228, and thorium-232 were detected at concentrations equivalent to normal background activities. There were no radionuclides attributable to the operation of the station detected in any shoreline sediment samples.
4.11 Fish The radioactivity measured in fish sampled from the Station Discharge Canal and analyzed by gamma spectroscopy is presented in Table 3-12. The 2019 results are similar to those seen over the last decade. No activity was observed in this media except for naturally occurring potassium-40.
4.12 Oysters Oysters were collected from three different locations. The results of the oyster analyses are presented in Table 3-13. No gamma emitting radionuclides were detected in oysters sampled, except for naturally occurring potassium-40. No station related radioactivity has been detected in this media since 1991.
4.13 Clams Clams are analyzed from three different locations. The results of the gamma spectroscopy analyses are presented in Table 3-14. Other than naturally occurring potassium-40, no other gamma emitting radionuclides related to station effluents were detected in the sample.
4.14 Crabs An annual crab sample was collected from the station discharge canal and analyzed by gamma spectroscopy. The results of the analysis are presented in Table 3-15.
Other than naturally occurring potassium-40, no other gamma emitting radionuclides related to station effluents were detected in the sample. This 1s consistent with pre-operational data and data collected over the past decade.
56
- 5. PROGRAM EXCEPTIONS There were three exceptions from the REMP sampling schedule in 2019.
The three exceptions are detailed below:
- 1. The Surry Site (SS) air sample particulate filter was invalid for the collection period 1/15/2019-1/22/2019. A visual inspection of the particulate filter, at time of collection, identified very little particulate.material was deposited on the patch. Teledyne Brown Engineering (TBE) was notified, documented their observation and validated through analysis that the sample is invalid.
TBE removed the sample from the quarterly composite group.
- 2. The Bacon's Castle (BC) air sampler has a 10-minute difference between the stop time and start time on 3/25/2019. This non-run time occurred to allow removal and calibration the instrument.
- 3. All three TLDs from location Route.633 (#21) were missing when attempting to collect them during the quarterly TLD exchange. The TLDs were mounted to a power pole. This pole was discarded and replaced. The TLD processor (Mirian) was notified of the discrepancy..
. 57
- 6. CONCLUSIONS The results of the 2019 Radiological Environmental Monitoring Program* for Surry Power Station have been presented in previous sections. This section presents conclusions for each pathway.
>- Direct Radiation Exposure Pathway,- There was no detectable. external dose to members of the public from Surry Power Station in 2019.
Note: The units for the Direct Radiation Exposure Pathway, as displayed in Table 3-1, have changed. The new units (mRem/Standard Quarter) match units.reported in Table 3-2: Gamma Exposure Rate.
>- Airborne Exposure Pathway - Radioiodine analysis of charcoal* cartridge samples indicated that no positive activity was detected. Quarterly gamma isotopic analyses of the composite particulate samples identified only naturally occurring beryllium-7 and potassium-40. All indicator locations for air particulate gross beta concentrations trend well with the control locations.
The effluent data was reviewed for the period of interest and concluded the station contribution is not measurable. *
>- Milk - Milk samples are an important indicator measuring the effect of radioactive iodine and radionuclides in airborne releases. No positive cesium-137 or iodine-131 activity was detected in any of the thirty-six samples.
Naturally occurring potassium-AO was detected> at a similar level when compared to the averages of the previous years.
- . Strontium-90 was detected in* two samples at an average concentration of 1.32 pCi/L. Strontium-90 is not a component of station effluents, but rather, a product of nuclear weapons testing fallout.,
>" Food Products - As expected, naturally occurring pota:ssium-40 was detected in all three food product samples. In the past, cesium-137 had occasionally been detected in these samples and is attributable to global fallout from past nuclear weapons testing. No positive cesium-137 activity was detected in food product samples in 2019.
>- Well Water - Well water sample analyses indicate no radioactivity was attributable to the operation of the station.
>- River Water - River water samples were analyzed for gamma emitting radionuclides and tritium.
Only naturally occurring potassium-40 and radium-226 were detected. No positive tritium activity was detected.
58
~ Silt - No radioactivity attributable to the operation of the station was detected in the control location. Only naturally occurring radionuclides were present.
The indicator sample with the highest average concentration of cesium-137 during 2019 is the station discharge sample, with an average concentration of 195 pCi/kg. This concentration is consistent with aquatic sediment samples collected in control locations of the James River. The presence of cesium-137 is attributable to residual weapons testing fallout.
- ~ Shoreline Sediment - There were no radionuclides attributable to the operation of Surry Power Station identified in any sample. Naturally occurring radionudides were detected at concentrations equivalent to normal background activities.
Aquatic Biota
~ Fish - As expected, naturally occurring potasshim-40 was detected. There were no other positive gamma emitting radionuclides detected in any of the fish samples.
~ Oysters - Other than naturally occurring potassium-40, there were no other positive gamm1:l emitting radionuclides detected in any of the oyster samples.
~ Clams - Other than naturally occurring potassium-40, there were no other positive gamrria emitting radionuclides detected in any of the clam samples.
~ Crabs - Other than naturally occurring potassium-40, there were no other positive gamma emitting radionuclides detected in any of the clam samples.
59
REFERENCES 60
References
- 1.
NUREG-0472, "Radiological Effluent Technical Specifications for PWRs",
Draft Rev. 3, March 1982.
- 2.
United States Nuclear Regulatory Commission, Regulatory Guide 1.109, Rev. 1, "Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10CFR50, Appendix I", October 1977.
- 3.
United States Nuclear Regulatory Commission, Regulatory Guide 4.8, "Environmental Technical Specifications for Nuclear Power Plants",
December 1975.
- 4.
United States Nuclear Regulatory Commission Branch Technical Position, "Acceptable Radiological Environmental Monitoring Program", Rev. 1, November 1979.
- 5.
Dominion, Station Administrative Procedure, VPAP-2103S, "Offsite Dose Calculation Manual (Surry)".
- 6.
Virginia Electric and Power Company, Surry Power Station Technical Specifications, Units 1 and 2.
- 7.
HASL-300, Environmental Measurements Laboratory, "EML Procedures Manual," 27th Edition, Volume 1, February 1992.
- 8.
NUREG/CR-4007, "Lower Limit of Detection: Definition and Elaboration of a Proposed Position for Radiological Effluent and Environmental Measurements," September 1984.
- 9.
NCRP Report No. 160, "Ionizing Radiation Exposure of the Population of the United States," March 2009.
- 10. Position paper on "Implementation of ANSI/HPS N13.37-2014 Environmental Dosimetry Criteria at Surry Power Station", November 2016 by John M. Sukosky, CHP.
61
APPENDICES 62
APPENDIX A: LAND USE CENSUS Year2019
- 63
LAND USE CENSUS*
Surry Power Station, Surry County, Virginia January 1 - December 31, 2019 Page 1 of 1 Nearest Nearest Sector Direction Resident Garden**
Nearest Cow A
N 4.1@ 10° (a)
B NNE 1.9 @32° (a)
C NE 4.7@35° (a)
D ENE (a)
(a)
E E
(a)
(a)
F ESE (a)
(a)
G SE 2.8@ 142° (a)
H SSE 2.7@ 158° 2.7@ 158° J
s 1.7@181° 2.0@ 183° K
SSW 1.9@ 192° 1.9@ 192° L
SW 1.23 @216° 4.7@228° M
WSW 0.4@244° 3.6@245° N
WSW 3.1@260° 3.4@260° p
WNW 4.9 @283° (a)
Q NW 4.6@321° (a)
R NNW 3.8@338° 4.4@334° Locations are listed by miles and degrees heading relative to true north from center of Unit 1 Containment.
- Area greater than 50 m 2 and contains broadleafvegetation.
(a) None 64 (a)
(a)
(a)
(a)
(a)
(a)
(a)
(a)
(a) 4.8@200° (a)
(a)
(a)
(a)
(a) 3.7@336° Nearest Goat (a)
(a)
(a)
(a)
(a)
(a)
(a)
(a)
(a)
(a)
(a)
(a)
(a)
(a)
(a)
(a)
INTRODUCTION The TBE Laboratory analyzed Performance Evaluation (PE) samples of air particulate, air iodine, milk, soil, vegetation, and water matrices for various analytes. The PE samples supplied by Analytics Inc., Environmental Resource Associates (ERA) and Department of Energy (DOE) Mixed Analyte Performance Evaluation Program (MAPEP), were evaluated against the followi~g pre-set acceptance criteria:
A.
Analytics Evaluation Criteria Analytics' evaluation report provides a ratio of TBE'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 MAPEP criteria.
B.
ERAEvaluation 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 Environmental Laboratory
- Accreditation Conference (NELAC),
- state-specific Performance Testing (PT) program requirements or ERA's SOP for the Generation of Performance Acceptance Lii:nits, 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 Ev~uation Criteria MAPEP's evaluation report provides an acceptance range with associated flag values. MAPEP defines three levels of performance:
.
- Acceptable (flag =:== "A") - result within +/- 20% of the reference value
- Acceptable with Warning (flag= "W") - 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 En~rgy (DOE) Mixed Analyte Performance Evaluation Program (MAPEP) samples are created to mimic conditions found at DOE sites which I
do not resemble typical environmental sarrJ-Ples obtained at commercial nuclear power facilities.
66
RESULTS For the TBE laboratory, 119,out of 129 analyses performed met the specified acceptance criteria. Ten analyses did not meet the specified acceptance criteria for the following reasons and were addressed through the TBE Corrective Action Program. A summary is found below:
- 1. The ERA April 2019 water Cs-134 result was evaluated as Not Acceptable. The reported value was 15.2 pCi/L (error 2.82 pCi/L) and the known result was 12.1 pCi/L (acceptance range of 8.39 - 14.4 pCi/L). With the error, the reported result overlaps the acceptable range. This sample was run as the workgroup duplicate on a different detector with a result of 10.7 pCi/L (within acceptable range). (NCR 19-10)
- 2. The ERA April 2019 water Sr-89 result was evaluated as Not Acceptable. The reported value was 44. 9 pCi/L and the known result was 33.3 pCi/L (acceptance range of 24.5 -: 40.1 pCi/L). The sample was only counted for 15 minutes instead of 200 minutes. Th~.sample was re-prepped in duplicate and counted for 200 minutes with results of 30.7 +/- 5.3.7 pCi/L and 33.0 +/- 8.71 pCi/L This was the 1st "high" failure f9r Sr-89 in 5 years. (NCR 19-11)
- 3. The MAPEP February 2019 soilSr-90 result was notsubmitted cµid therefore evaluated as NotAccept1;tble. The saJTiple was run in duplicate, with results of
-1.32 +/- 4.09 Bq/kg (<6.87) and -1.030,+/- 3.55 Bq/kg (<5.97). The known result was a false positive test (no significant activity). TBE did. not submit a result because it appeared that the results may not be accurate. TSE analyzed a substitute soil Sr-90 sample from another vendor, with a result within the acceptable range. (NCR 19-12)
- 4. The MAPEP February 2019 water Arri-241 result was evaluated as Not Acceptable. The reported value was 0.764 +/- 0.00725 Bq/L with a known result of 0.582 Bq/L (acceptable range 0.407 - 0. 757 Bq/L). TBE's result falls within the upper acceptable range with the error. It appeared that a non-radiological interference was added artd lead to an increased mass and higher result. (NCR 19-13)
- 5. The MAPEP February 2019 vegetation Sr-90 result was evaluated as Not Acceptable. The reported result was -0.1060+/- 0.0328 Bq/kg and the known
. result was a false positive test (no significant activity)., TBE's result was correct
. in that there was no activity. MAPEP's evaluation was a "statistical failure" at 3 standard deviations. (NCR 19-14).
67
- 6. The ERA October 2019 water Gross Alpha result was evaluated as Not Acceptable. TBE's reported result was 40.5 +/- 10.3 pCi/L and the known result was 27.6 pCi/L (ratio of TBE to known result at 135%). With the associated error, the result falls within the acceptable range (14.0 - 36.3 pCi/L). The sample was-run as the workgroup duplicate on a different detector with a result of 30.8 +/- 9.17 pCi/L (within the acceptable range). This was the first failure for drinking water Gr-A since 2012. (NCR 19-23)
TBE's reported result was 32.5 +/- 2.12 pCi/L and the known result was 26.5 pCi/L (ratio of TBE to known result at 123%). With the associated error, the
- result falls within the acceptable range (19.2 - 30.9 pCi/L). The sample was run as the workgroup duplicate on a different detector with a result of 20.0 +/-
1.91 pCi/L (within the acceptable range). Both TBE results are within internal QC limits. A substitute "quick response" sample was analyzed with an acceptable result of 20.1 pCi/L (known range of 13.2 - 22.1 pCi/L).
(NCR 19-24)
- 8. The MAPEP August 2019 soil Ni-63 result of 436 +/- 22.8 Bq/kg was evaluated as Not Acceptable. The known result was 629 Bq/kg (acceptable range 440 -
818 Bq/kg). With the associated error, the TBE result falls within the lower acceptance range. All associated QC was acceptable. No reason for failure could be found. This is the first failure for soil Ni-63 since 2012. (NCR 19-25)
- 9. The MAPEP August 2019 water Am-241 result was not reported and therefore evaluated as Not Acceptable. Initial review of the results showed a large peak where Am-241 should be (same as the February, 2019 sample results). It is believed that Th-228 was intentionally added as an interference. The sample was re-prepped and analyzed using a smaller sample aliquot. The unusual large peak (Th-228) was seen again and also this time a smaller peak (Am-241).
The result was 436 +/- 22.8 Bq/L (acceptable range 0.365 +/- 0.679 Bq/L). Th-228 is not atypical nuclide requested by clients, so there is no analytical purpose to take samples through an additional separation step. TBE will pursue using another vendor for Am-241 water cross-checks that more closely reflects actual customer samples. (NCR 19-26) 68
- 10.
The Analytics September 2019 *soil Cr-51 sample was evaluated as Not Acceptable. TBE's reported result of 0.. 765 +/- 0.135 pCi/g exceeded the upper acceptance range (140% of the known result of 0.547 pCi/g). The TBE result was within the acceptable range (0.63 - 0. 90 pCi/ g) with the associated error.
The Cr-51 result is very close to TBE's normal detection limit. In order to get a reportable result, the sample must be counted for 15 hours1.736111e-4 days <br />0.00417 hours <br />2.480159e-5 weeks <br />5.7075e-6 months <br /> (lOx longer than client samples). There is no client or regulatory requirement for this nuclide and TBE will remove Cr-51 from the reported gamma nuclides going forward.
(NCR 19-27)
The Inter-Laboratory Comparison Program provides evidence of "in control" counting systems and methods,:and.that the laboratories are producing accurate and reliable data. **
- 69
Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering Environmental Services Identification TBE Known Ratio of TBE to Month/Ye1,1r Number Matrix Nuclide Units Reported Value <*l Analytics Result Evaluation (bl Value March 2019 E12468A Milk Sr-89 pCi/L 87.1 96 0.91 A
Sr-90 pCi/L 12.6 12.6 1.00 A
E12469A Milk Ce-141 pCi/L 113 117 0.97 A
Co-58 pCi/L 153 143 1.07 A
Co-60 pCi/L 289 299 0.97 A
Cr-51 pCi/L 233 293 0.80 A
Cs-134 pCi/L 147 160 0.92 A
Cs-137 pCi/L 193 196 0.98 A
Fe-59 pCi/L 153 159 0.96 A
1-131 pCi/L 91.5 89.5 1.02 A
Mn-54 pCi/L 149 143 1.04 A
Zn-65 pCi/L 209 220 0.95 A
E12470 Charcoal 1-131 pCi 77.5 75.2 1.03 A
E12471 AP Ce-141 pCi 60.7 70.2 0.87 A
Co-58 pCi 87.9 85.8 1.02 A
Co-60 pCi 175 179 0.98 A
Cr-51 pCi 165 176 0.94 A
Cs-134 pCi 91.2 95.9 0.95 A
Cs-137 pCi 120 118 1.02 A
Fe-59 pCi 108 95.3 1.13 A
Mn-54 pCi 94.2 85.7 1.10 A
Zn-65 pCi 102 132 0.77 w
E12472 Water Fe-55 pCi/L 2230 1920 1.16 A
E12473 Soil Ce-141 pCi/g 0.189 0.183 1.03 A
Co-58 pCi/g 0.209 0.224 0.93 A
Co-60 pCi/g 0.481 0.466 1.03 A
Cr-51 pCi/g 0.522 0.457 1.14 A
Cs-134 pCi/g 0.218 0.250 0.87 A
Cs-137 pCi/g 0.370 0.381 0.97 A
Fe-59 pCi/g 0.263 0.248 1.06 A
Mn-54 pCi/g
- 0.248 0.223 1.11 A
Zn-65 pCi/g 0.371 0.344 1.08 A
E12474 AP Sr-89 pCi 88.3 95.2 0.93 A
Sr-90 pCi 11.7 12.5 0.94 A
August 2019 E12562 Soil Sr-90 pCi/g 4.710 6.710 0.70 w
(a) The Analytics known value is equal to 100% of the parameter present in the standard as detennined by gravimetric and/or volumetric measurements made during standard preparation (b) Analytics evaluation based on TBE internal QC limits:
A = Acceptable - reported result falls within ratio limits pf 0.80-1.20 W= Acceptable with warning - reported result falls within 0:7d-O.Bd or 1.20-1.30 N = Not Acceptable - reported result falls outside the ratio limits of< 0. 70 and> 1.30 70
Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering Environmental Services Identification TBE Known Ratio ofTBE to MonthNear Number Matrix Nuclide Units Reported Value (a)
Analytics Result Evaluation (bl Value September 2019 E12475 Milk Sr-89 pCi/L 70.0 93.9 0.75 w
Sr-90 pCi/L 12.0 12.9 0.93 A
E12476 Milk Ce-141 pCi/L 150 167 0.90 A
Co-58 pCi/L 170 175 0.97 A
Co-60 pCi/L 211 211 1.00 A
Cr-51 pCi/L 323 331 0.98 A
Cs-134 pCi/L 180 207 0.87 A
Cs-137 pCi/L 147 151 0.97 A
Fe-59 pCi/L 156 148 1.05 A
1-131 pCi/L 81.1 92.1 0.88 A
Mn-54 pCi/L 160 154 1.04 A
.Zn-65 pCi/L 303 293 1.03 A
E12477 Charcoal 1-131 pCi 95.9 95.1 1.01 A
E12478
. AP Ce-141 pCi 129 138 0.93 A
Co-58 pCi 128 145 0.88 A
Co-60 pCi 181 174 1.04 A
Cr-51 pCi 292 274 1.07 A
Cs-134 pCi 166 171 0.97 A
Cs-137 pCi 115 125 0.92 A
Fe-59 pCi 119 123 0.97 A
Mn-54 pCi 12,9 128 1.01 A
Zn-65 pCi 230 242 0.95 A
E12479 Water Fe-55 pCi/L 1810 1850 0.98 A
E12480 Soil Ce-141 pCi/g 0.305 0.276 1.10 A
Co-58 pCi/g 0.270 0.289 0.93 A
Co-60 pCi/g 0.358 0.348 1.03 A
Cr-51 pCi/g 0.765 0.547 1.40 Nc1J Cs-134 pCi/g 0.327 0.343 0.95 A
Cs-137 pCi/g 0.308 0.321 0.96 A
Fe-59 pCi/g 0:257 0.245 1.05 A
Mn-54 pCi/g 0.274 0.255 1.07 A
Zn-65 pCi/g 0.536 0.485 1.11 A
E12481 AP Sr-89 pCi 95.9 91.9 1.04 A
'pCi 12.3 12.6 0.97 A
E12563 Soil Sr-90 pCi/g 0.392 0.360 1.09 A
(a) The Analytics known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation (b) Analytics evaluation based on TBE internal QC limits:
A = Acceptable - reported result falls within ratio limits of 0.80-1.20 W= Acceptable with warning-reported result falls within 0.70-0.80 '?r 1.20-1.30 N = Not Acceptable - reported result falls outside the ratio limits of< p. 70 and> 1.30'.
(1) See NCR 19-27 71
DOE's Mixed Analyte Performance Evaluation Program (MAPEP)
Teledyne Brown Engineering Environmental Services Identification TBE Known
- Acceptance Month/Year Number Matrix Nuclide Units Reported Value (al Range Evaluation {bl Value February 2019 19-GrF40 AP Gross Alpha Sq/sample 0.184 0.528
- 0.158 - 0.898 A
Gross Beta Sq/sample 0.785 0.948 0.474 - 1.422 A
19-MaS40 Soil Ni-63 Bq/kg 420 519.0 363 - 675 A
Sr-90 Sq/kg (1)
NR(3l 19-MaW40 Water Am-241 Sq/L 0.764 0.582 0.407 0.757 N(4)
Ni-63 Bq/L 4.72 5.8 4.1 - 7.5 A
Pu-238 Bq/L 0.443 0.451 0.316 - 0.586 A
Pu-239/240 Bq/L
-0.00161 0.0045 (2)
A 19-RdF40 AP U-234/233 Sq/sample 0.1138 0.106 0.074 - 0.138 A
U-238 Sq/sample 0.107 0.110 0.077 - 0.143 A
19-RdV40 Vegetation Cs-134 Sq/sample 2.14 2.44 1.71-3.17 A'
Cs-137 Sq/sample 2.22 2.30 1.61 - 2.99 A
Co-57 Sq/sample 2.16 2.07 1.45-2.69 A
Co-60 Sq/sample 0.02382 (1)
A Mn-54 Sq/sample
-0.03607 (1)
A Sr-90 Sq/sample
-0.1060 (1)
N(s)
Zn-65 Sq/sample 1.35 1.71 1.20-2.22 w
August 2019 19-GrF41 AP Gross Alpha Bq/sample 0.192 0.528 0.158 - 0.898 w
Gross Beta Sq/sample 0.722 0.937 0.469 - 1.406 A
19~MaS41
. Soil Ni-63 Bq/kg 436 629 440- 818 N<6l Sr-90 Bq/kg 444 572 400- 744 w
19-MaW41 Water Am-241 Bq/L NRC7J Ni-63 Bq/L 7.28 9'_7 6.8-12.6 w
Pu-238 Bq/L 0.0207 0.0063 (2)
A Pu-239/240 Bq/L 0.741 0.727 0.509 - 0.945 A
19-RdF41 AP U-234/233 Bq/sample 0.0966 0.093 0.065 0.121 A
U-238 Sq/sample 0.0852 0.096 0.067-0.125 A
19-RdV41 Vegetation Cs-134 Bq/sample 0.0197 (1)
A Cs-137 Sq/sample 3.21 3.28 2.30-4.26 A
Co-57 Sq/sample 4.62 4.57 3.20-5.94 A
Co-60 Sq/sample 4.88 5.30 3.71 - 6.89 A
Mn-54 Sq/sample 4.54 4.49 3.14 - 5.84 A
Sr-90 Sq/sample 0.889 1.00 0.70- 1.30 A
Zn-65 Sq/sample 2.78 2.85 2.00- 3.71
- A (a) The MAPEP known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric, measurements made during standard preparation (b) DOEIMAPEP evaluation:
A =Acceptable-reported result falls within ratio limits of 0.80-1.20 W = Acceptable with warning - reported result falls within 0. 70-0.80 or 1.20-1.30 N
Not Acceptable - reported result falls outside the ratio limits of< o. 70 and> 1.30 (1) False positive test; (2) Sensitivity evaluation; (3) See NCR 19-12; (4) See NCR 19-13; (5) See NCR 19-14; (6) See NCR 19-2; (7) See NCR 19-26 72
ERA Environmental Radioactivity Cross Check Program Teledyne Brown Engineering Environmental Services TBE Identification Known Acceptance Month/Year Matrix Nuclide Units Reported Evaluation (b)
Number Value<*>
Limits Value April 2019 Rad-117 Water Ba-133 pCi/L 26.3 24.1 18.6 - 27.8 Cs-134 pCi/L 15.2 12.1 8.39 - 14.4 Cs-137 pCi/L 33.6 33.1 28.8 - 39.4 Co-60 pCi/L 11.9 11.5 8.67 - 15.5 Zn-65 pCi/L 87.1 89.2 80.3 - 107 GR-A pCi/L 19 19.3 9.56 - 26.5 GR-8 pCi/L 20.2 29.9 19.1 -37.7 U-Nat pCi/L 55.5 55.9 45.6 - 61.5 H-3 pCi/L 21500 21400 18700 - 23500 Sr-89 pCi/L 44.9 33.3 24.5-40.1 Sr-90.
pCi/L 24.5 26.3 19.0 - 30.7 1-131 pCi/L 28.9 28.4 23.6 - 33.3 October 2019 Rad-119 Water Ba-133 pCi/L 42.7 43.8 35.7 -48.8 Cs-134 pCi/L 53.5 55.9 45.2 - 61.5 Cs-137 pCi/L 77.7 78.7 70.8-89.2 Co-60 pCi/L 51.5 53.4 48.1 - 61.3 Zn-65 pCi/L 36.6 34.0 28.5 - 43.1 GR-A pCi/L 40.5 27.6 14.0 - 36.3 GR-8 pCi/L 36.3 39.8 26.4 - 47.3 U-Nat pCi/L 27.66 28.0 22.6 - 31.1 H-3 pCi/L 22800 23400 20500 - 25700 Sr-89 pCi/L 47.1 45.5 35.4 - 52.7 Sr-90 pCi/L 32.5 26.5 19.2 - 30.9 1-131 pCi/L 26.0 23.9 19.8 - 28.4 December 2019 QR 1204190 Water Sr-90 pCi/L 20.1 18.6 13.2 - 22.1 (a)' The ERA known value is equal to 100% of the parameter present-in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation.
(b) ERA evaluation:
A = Acceptable - Reported value falls within the Acceptance Limits N = Not Acceptable - Reported value falls outside of the AcceptanceLimits (1) See NCR 19-10 (2) See NCR 19-11 (3) See NCR 19-23 (4) See NCR 19-24 73 A
N'1>
A A
A A
A A
A N<2>
A A
A A
A A
A N(3)
A A
A A
N(4l A
A