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| issue date = 05/02/2016 | | issue date = 05/02/2016 | ||
| title = Virginia Electric and Power Company Surry Power Station Units 1 and 2 Independent Spent Fuel Storage Installation Annual Radiological Environmental Operating Report | | title = Virginia Electric and Power Company Surry Power Station Units 1 and 2 Independent Spent Fuel Storage Installation Annual Radiological Environmental Operating Report | ||
| author name = Lawrence D | | author name = Lawrence D | ||
| author affiliation = Virginia Electric & Power Co (VEPCO) | | author affiliation = Virginia Electric & Power Co (VEPCO) | ||
| addressee name = | | addressee name = | ||
| Line 16: | Line 16: | ||
=Text= | =Text= | ||
{{#Wiki_filter:VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 May 2, 2016 United States Nuclear Regulatory Commission Attention:* | {{#Wiki_filter:VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 May 2, 2016 United States Nuclear Regulatory Commission Serial No. 16-163 Attention:* Document Control Desk SS&L/TSC RO Washington, DC 20555-0001 Docket Nos. 50-280 50-281 72-2 72-55 License Nos. DPR-32 DPR-37 SNM-2501 VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNITS 1AND2 INDEPENDENT SPENT FUEL STORAGE INSTALLATION ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT Surry Units 1 and 2 Technical Specification 6.6.B.2 requires the submittal of an Anhual 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, 2015 through December 31, 2015, which includes environmental monitoring for the Surry ISFSI. | ||
Document Control Desk Washington, DC 20555-0001 | If you have any further questions, please contact Jason Eggart at 757-365-2010. | ||
Douglas . Lawrence Director Safety & Licensing Surry Power Station Attachment Commitments made in this letter: None 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 Division of Radiological Health 109 Governor Street, Room 730 Richmond, Virginia 23219 Serial No. 16-163 Docket Nos.: 50-280 50-281 72-2 72-55 ATTACHMENT 1 | Douglas . Lawrence Director Safety & Licensing Surry Power Station Attachment Commitments made in this letter: None | ||
_ _, W. A<-Terry--z:;:T-Supervisor Health Physics Technical Services Approved by: | Serial No. 16-163 Docket Nos.: 50-280 50-281 72-2 72-55 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 Division of Radiological Health 109 Governor Street, Room 730 Richmond, Virginia 23219 | ||
__ fa,-ft'j::ia..,.......j11_Jc_* | |||
_- | Serial No. 16-163 Docket Nos.: 50-280 50-281 72-2 72-55 ATTACHMENT 1 2015 Annual Radiological Environmental Operating Report SURRY POWER STATION UNITS 1AND2 VIRGINIA ELECTRIC AND POWER COMPANY | ||
Surry Power Station 2015 Annual Radiological Environmental Operating Report | |||
Dominion Surry Power Station Radiological Environmental Monitoring Program January 1, 2015 to December 31, 2015 | |||
Annual Radiological Environmental Operating Report Surry Power Station January 1, 2015 to December 31, 2015 Prepared by: f /: 1JI~ | |||
- - - - - - - - - - - +P.*F.-Blount ------------ | |||
Health Physicist P.R. Harris Supervisor Radiological Analysis | |||
,,,...~} , / ,/"l ) | |||
Reviewed by: ------:1~-~------(.....-c-_.--,I"-/_._,.,_~--=-=r------ | |||
__, W. A<-Terry--z:;:T-Supervisor Health Physics Technical Services | |||
___,n~~Ai~'"°----?J Approved by: _ _ _ | |||
-r __ fa,-ft'j::ia..,.......j11_Jc_*_ -_ _ | |||
J.\VEggart Manager Radiological Protection and Chemistry | |||
Table of Contents PREFACE .......................................................................................................... ,................................... 4 | |||
: 1. EXECUTIVE | |||
==SUMMARY== | ==SUMMARY== | ||
............................................................................................................... 5 | |||
: 2. PROGRAM DESCRIPTION ............................................................................................................ 7 2.1 Introduction ............................................................................................................................. ? | |||
............................................................................................................ | 2.2 Sampling and Analysis Program ...................................................................... :...................... 8 | ||
7 2.1 Introduction | : 3. ANALYTICAL RESULTS ............................................................................................................. 20 3.1 Summary of Results .............................................................................................................. 20 3.2 Analytical Results of 2015 REMP Samples ........................................................................ .27 | ||
............................................................................................................................. | : 4. DISCUSSION OF RESULTS ...................................................................................................... 48 4.1 Gamma Exposure Rate ........................................................................................................_.48 4.2 Airborne Gross Beta.............................................................................................................. 49 4.3 Airborne Radioiodine ............................................................................................................ 51 4.4 Air Particulate Gamma ......................................................................................................... 51 4.5 cow Milk .............................................................................................................................. 52 4.6 Food Products ....................................................................................................................... 52 4.7 Well Water ............................................................................................................................ 52 4.8 RiverWater ........................................................................................................................... 52 4.9 Silt .........................................................................................................-................................ 53 4.10 Shoreline Sediment ............................................................................................................. 55 4.11 Fish ................................................................. :.................................................................... 55 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: | ||
20 3 .1 Summary of Results .............................................................................................................. | |||
20 3.2 Analytical Results of 2015 REMP Samples ........................................................................ | |||
.27 4. DISCUSSION OF RESULTS ...................................................................................................... | |||
48 4.1 Gamma Exposure Rate ........................................................................................................ | |||
_.48 4.2 Airborne Gross Beta .............................................................................................................. | |||
49 4.3 Airborne Radioiodine | |||
............................................................................................................ | |||
51 4.4 Air Particulate Gamma ......................................................................................................... | |||
51 4.5 cow Milk .............................................................................................................................. | |||
52 4.6 Food Products ....................................................................................................................... | |||
52 4.7 Well Water ............................................................................................................................ | |||
52 4.8 RiverWater | |||
........................................................................................................................... | |||
52 4.9 Silt ......................................................................................................... | |||
-................................ | |||
53 4.10 Shoreline Sediment ............................................................................................................. | |||
55 4.11 Fish ................................................................. | |||
: .................................................................... | |||
55 4.12 Oysters ................................................................................................................................ | |||
56 4.13 Clams .................................................................................................................................. | |||
56 4.14 Crabs ................................................................................................................................... | |||
........................................................................................................... | |||
............................................................................................................................. | |||
58 REFERENCES | |||
.................................................................................................................................... | |||
60 APPENDICES | |||
................................... | |||
: ................................................................................................. | |||
62 APPENDIX A: LAND USE CENSUS ........................................................................................... | |||
63 APPENDIX B: | |||
==SUMMARY== | ==SUMMARY== | ||
OF INTERLABORATORY COMPARISONS | OF INTERLABORATORY COMPARISONS ............................... 65 APPENDIX C: ERRATA .................................................................................... 73 3 | ||
............................... | |||
65 APPENDIX C: ERRATA .................................................................................... | PREFACE This report is submitted as required by Technical Specification 6.6.B.2, Annual Radiological Environmental 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, Item 1.3.1. | ||
73 3 PREFACE This report is submitted as required by Technical Specification 6.6.B.2, Annual Radiological Environmental 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, Item 1.3.1. 4 | 4 | ||
: 1. EXECUTIVE | : 1. EXECUTIVE | ||
==SUMMARY== | ==SUMMARY== | ||
This document is a detailed report of the 2015 Surry Power Station Radiological Environmental Monitoring Program (REMP). | This document is a detailed report of the 2015 Surry Power Station Radiological Environmental Monitoring Program (REMP). | ||
* Radioactivity levels from January 1 through December 31, 2015, in air, water, silt,,* shoreline sediment, milk, aquatic biota, food products and direct exposure pathways have been analyzed, evaluated and summarized. | * Radioactivity levels from January 1 through December 31, 2015, 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 radiologicai 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 REMP is designed to confirm that radiologicai 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. | ||
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. | 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 | ||
The first type, control samples, is collected from areas that are beyond the measurable influence of Surry Power Station or any other nuclear *facility. | *facility. These samples* represent normal background radiation levels. | ||
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. | Background radiation levels can be compared to the environment surrounding the station. Indicator samples are the second sample type obtained. These sampJes show how much radiation. is contributed to the enVironment by the station . | ||
These sampJes show how much radiation. | .Indicator samples are taken from areas dose to the station where any station contribution will be at the highest concentration. | ||
is contributed to the enVironment by the station . . Indicator samples are taken from areas dose 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 | ||
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 | *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. | ||
*and Fukushima Daiichi accidents that released radioactive material to the environment. | Teledyne Brown Engineering, Inc. (TBE) provides radioanalyses for this program and Global Dosimetry Solutions, Inc. provides thermoluminescent dosimetry (TLD) services. Participation in an Interlaboratory Comparison Pr~gram 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. | ||
Teledyne Brown Engineering, Inc. (TBE) provides radioanalyses for this program and Global Dosimetry Solutions, Inc. provides thermoluminescent dosimetry (TLD) services. | Because of this, *the United States Nuclear Regulatory Commissfon (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 5 | ||
Participation in an Interlaboratory Comparison 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 Commissfon (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. | 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. | ||
The USNRC also mandates a reporting 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. 1Jie 2015 airborne results were similar 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 potassium~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. The cesium-137 activity was present in the control and. indicator locations and is attributable to global fallout from past nuclear weapons testing and nuclear accidents such as Chernobyl. | ||
Shoreline sed:tinent, which may provide a direct exposure pathway, contained no station related* radionuclides. Naturally occurring radionuclides potassium, radium and thorium were detected at average environmental levels. The terrestrial exposure pathway includes milk and food products. Iodine-131 was | |||
Licensed nuclear facilities must report the radionuclide activities in those environmental samples that are equal to or greater than the specified reporting level. Environmental radiation levels are sometimes referred to as a percent of the reporting level. Analytical results are reported for all possible radiation exposure pathways to man. These pathways include airborne, aquatic, terrestrial and direct radiation exposure. | :riot detected in any 2015 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 man-made radionuclides were detected in food product samples. Consistent with historical data, naturally occurring potassium-40 was detected in milk and food. | ||
The airborne exposure pathway includes radioactive airborne iodine and particulates. | products. The direct exposure pathway measures environmental radiation doses using TLDs~ TLD results have remained relatively constant over the years. | ||
1Jie 2015 airborne results were similar 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 | During 2015, 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 2015 was 0.030 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 %. | ||
The cesium-137 activity was present in the control and. indicator locations and is attributable to global fallout from past nuclear weapons testing and nuclear accidents such as Chernobyl. | These results demonstrate compliance with federcll and state regulations and also demonstrate the adequacy of radioactive effluent controls at Surry Power Station. | ||
Shoreline sed:tinent, which may provide a direct exposure pathway, contained no station related* radionuclides. | 6 | ||
Naturally occurring radionuclides potassium, radium and thorium were detected at average environmental levels. The terrestrial exposure pathway includes milk and food products. | : 2. PROGRAM DESCRIPTION 2.1 Introduction This report documents the 2015 Surry Power Station operational Radiological Environmental Monitoring Program (REMP). The Dominion 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 | ||
Iodine-131 was :riot detected in any 2015 milk samples and has not been detected in milk prior to or since. the 1986 Chernobyl accident. | . with a nominal gross electrical output of 910 megawatts electric (MWe). Unit 1 achieved commercial operation on D*ecember 22, 1972, and Unit 2 on May 1,. | ||
Strontium-90 was detected in milk and this activity is attributable to past atmospheric nuclear weapons testing. No made radionuclides were detected in food product samples. Consistent with historical data, naturally occurring potassium-40 was detected in milk and food. products. | 1973. | ||
The direct exposure pathway measures environmental radiation doses using TLD results have remained relatively constant over the years. | The United States Nuclear Regulatory Commission regulations (10CFR50.34a) | ||
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 federcll and state regulations and also demonstrate the adequacy of radioactive effluent controls at Surry Power Station. 6 | .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 . | ||
: 2. PROGRAM DESCRIPTION | Reasonably Achievable. To ensure these criteria are met, the operating license for Surry Power Station includes Technical 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 against unexpected or undefined environmental processes which might allow undue accumulation of radioactivity in the environment, a program for monitoring the station environs is also included in Surry Power Station Technical Specifications. | ||
Dominion personnel are responsible for collecting the various indicator and control environmental samples. Global Dosimetry Solutions Incorporated is responsible for processing the TLDs. Teledyne Brown Engineering is responsible | |||
* for sample analyses. The results of the analyses are used to determine if changes in radioactivity levels may be attributable to station operations. Measured values are compared with control values, which vary with time due to external events, such as cosmic ray bombardment, nuclear weapons test fallout and seasonal variations of naturally occurriilg radionuclides. Data collected prior to station . | |||
operation is used to indicate the degree of natural variation to be expected. This pre-operational data is compared with data collected during the operational phase to assist in evaluating any radiological impact of station operation. | |||
Occasionally, samples of environmental media 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). | |||
7 | |||
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 2015 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 tli~ 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 Table 2-1 summarizes the 2015 sampling program for Surry Power Station. All samples listed in Table 2-1 are taken at indicator locations except those labeled "control." Dominion personnel collect all samples listed in Table 2-1. | |||
Table 2-2 summarizes the analysis program conducted by Teledyne Brown Engineering and Global Dosimetry Solutions 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 Global Dosimetry Solutions, located in Costa Mesa, 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-2015 RADIOLOGICAL SAMPLING STATIONS DISTANCE AND DIRECTION FROM UNIT NO. 1 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° 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 Population 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-2015 RADIOLOGICAL SAMPLING STATIONS DISTANCE AND DIRECTION FROM UNIT NO. 1 Distance Collection Sample Media Location Station Miles Direction Degrees Frequency Remarks Environmental BASF (34) 5.1 ENE 70° Quarterly Apx. 5 mile TLDs LeeHall (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 (HIR) 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 (HIR) 2.0 NNE 28° Quarterly Construction Site (CS) 0.3 E 870 Quarterly Shoreline Hog Island Reserve (HIR) 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) 1.3 NNW 341° Semi-Annually 10 | |||
Table 2-1 SURRY-2015 RADIOWGICAL SAMPLING STATIONS DISTANCE AND DIRECTION FROM UNIT NO. 1 Distance Collection Sample Media Location Station Miles Direction Degrees Frequency Remarks Milk Colonial Parkway (CP) 3.7 NNW 336° Monthly Williams (WMS) 27.5 s 175° Monthly Control Location Fpps (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 Lawne's Creek (LC) 2.4 SE 131° 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 (JI) 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 | |||
Table 2-2 SURRY-2015 SAMPLE ANALYSIS PROGRAM SAMPLE MEDIA FREQUENCY ANALYSIS LLD* REPORT UNITS Thermoluminescent Quarterly Gamma Dose 2 mR/Std. Month Dosimetry (TLD) 3 Air Iodine Weekly I-131 0.07 pCi/m 3 | |||
Air Particulate Weekly Gross Beta 0.01 pCi/m 3 | |||
Quarterly (a) Gamma Isotopic pCi/m 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 Co-58 15 Fe-59 30 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 Gamma Isotopic pCi/L Mn-54 15 Co-58 15 Fe-59 30 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 -2015 SAMPLE ANALYSIS PROGRAM 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 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 Co-58 130 Fe-59 260 Co-60 130 Zn-65 260 Cs-134 130 Cs-137 150 Clams Semi-Annually Gamma Isotopic pCi/kg- wet Mn-54 130 Co-58 130 Fe-59 260 Co-60 130 Zn-65 260 Cs-134 130 Cs-137 150 Crabs Annually Gamma Isotopic pCi/kg- wet Mn-54 130 Co-58 130 Fe-59 260 Co-60 130 Zn-65 260 Cs-134 130 Cs-137 150 Footnotes located at end of table. | |||
13 | |||
Table 2-2 SURRY-2015 SAMPLE ANALYSIS PROGRAM SAMPLE MEDIA FREQUENCY ANALYSIS LLD* REPORT UNITS Fish Semi-Annually Gamma Isotopic pCi/kg- wet Mn-54 130 Co-58 130 Fe-59 260 Co-60 130 Zn-65 260 Cs-134 130 Cs-137 150 Food Products Annually Gamma Isotopic pCi/kg- wet I-131 60 Cs-134 60 Cs-137 80 Note: This table is not a complete listing of nuclides that can be detected and reported. Other peaks that are are measurable and identifiable, together with the above 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 | |||
\ | |||
WSW \ | |||
ESE SW Legend | |||
** Air Sampling Stations TLD Sampling State Environmental SSW Monitoring Sites | |||
* State TLD Sites Figure 1. Surry Radiological Monitoring Locations | |||
Figure 2. Surry Emergency Plan Map e Air Sampling Stations e Nearest Residents e TLD Sampling e Nearest Milk Animal e Nearest Garden Aquatic Samples Original © 1991 by ADC of Alexandria, Inc., 6440 General Green Way, Al exandria, VA 223 12. USED WITH PERMISS ION . No other reproduction may be made without the written permission of ADC . | |||
SSE w | |||
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Figure 5. Surry Emergency Plan Map e Air Sampling Stations e Nearest Residents e TLD Sampling e Nearest Milk Animal e Nearest Garden Aquatic Samples Original © 1991 by ADC of Al exandria, Inc., 6440 General Green Way, Alexandria , VA 22312 . USE D WITH PERM ISS ION . No other reproduction may be made without the written permission of ADC . | |||
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: 3. ANALYTICALRESULTS 3.1 Summary ofResults 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 iri 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 | |||
: 3. ANALYTICALRESULTS | |||
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM | |||
==SUMMARY== | ==SUMMARY== | ||
Surry Power Station, Surry County, Virginia -2015 Docket No. 50-280-281 Page 1 o'f6 Medium or Pathway Analysis Sampled | |||
STA-9 0.3 mi | Surry Power Station, Surry County, Virginia - 2015 Docket No. 50-280-281 Page 1 o'f6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled (Units) Type | ||
BC 4.5 mi 17.1 (52/52) 15.9 (51/52) 0 Particulate Beta (2.91 -36.3) SSW (2.94 -36.3) (3.12 -32.8) (1E-3 pCi/m3) -------------------------------------------------------------------- | !Total No. LLD Mean Range I Distance Name Direction I Mean Range Mean Range Reported Measurements Direct Gamma 164 2 5.7 (152/152) STA-9 0.3 mi 7.8 (4/4) 6.0 (12/12) 0 Radiation (3.4 - 8.2) E (7.3 - 8.2) (5.0 - 7.5) | ||
Gamma 32 Be-7 32 130 (28/28) ALL 5.1*mi 165 (414) 141 (4/4) 0 (94.1 -187) WSW (128 -187) (136 -151) K-40 32 17.2 (5/28) HIR 2.0 mi 22.8 (1/4) <LLD 0 (10.0 -24.6) NNE (22.8 -22.8) 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 pq!m3) ------------------------------------------------------------------- | TLD (mRI Std Month) | ||
Air Gross 416 10 14.7 (359/364) BC 4.5 mi 17.1 (52/52) 15.9 (51/52) 0 Particulate Beta (2.91 - 36.3) SSW (2.94 - 36.3) (3.12 - 32.8) | |||
(1E-3 pCi/m3) -------------------------------------------------------------------- | |||
Gamma 32 Be-7 32 130 (28/28) ALL 5.1*mi 165 (414) 141 (4/4) 0 (94.1 - 187) WSW (128 - 187) (136 - 151) | |||
Gamma 36 K-40 36 1323 (24/24) EPPS 4.8 ml '1352 (12/12) 1296 (12/12) 0 (1070 -1570) SSW (1240 -1570) (1130 -1430) 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 I TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM | K-40 32 17.2 (5/28) HIR 2.0 mi 22.8 (1/4) <LLD 0 (10.0 - 24.6) NNE (22.8 - 22.8) | ||
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 pq!m3) | |||
Milk Strontium 4 (pCi!Liter) | |||
Sr-89 4 <LLD N/A <LLD <LLD 0 Sr-90 4 1. 78 (2/4) CP 3.7 mi 1. 78 (2/4) <LLD 0 (1.76-1.80) NNW (1.76 - 1.80) | |||
------------------------------------~----*-----------------------~------ | |||
Gamma 36 K-40 36 1323 (24/24) EPPS 4.8 ml '1352 (12/12) 1296 (12/12) 0 (1070 - 1570) SSW (1240 - 1570) (1130 - 1430) 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 I | |||
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM | |||
==SUMMARY== | ==SUMMARY== | ||
Surry Power Station, Surry County, Virginia -2015 Docket No. 50-280-281 Page 2 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled | |||
Well H-3 12 2000 <LLD N/A <LLD N/A 0 Water (pCi!Liter) | Surry Power Station, Surry County, Virginia - 2015 Docket No. 50-280-281 Page 2 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled (Units) Type | ||
--------------- | !Total No. LLD Mean Range IDistance | ||
.. ------------------------------------------------------------- | .Name Direction I Mean Range Mean Range Reported Measurements Food Gamma 3 Products (pCi!kg wet) K-40 3 9090 (3/3) Slade 3.2mi 17800 (1/1) N/A 0 (3830 - 17800) s (17800-17800) 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 K-40 12 88.5 (1/12) cs 0.3mi 88.5 (1/12) N/A 0 (88.5 - 88.5) E . (88.5 - 88.5) | ||
Gamma 12 | Mn-54 12 15 <LLD N/A <LLD N/A 0 Co-58 12 15 <LLD N/A <LLD N/A 0 I | ||
I Fe-59 12 30 <LLD N/A <LLD N/A ** 0 Co-60 12. 15 <LLD N/A <LLD N/A 0 Zn-65 12 30 <LLD N/A <LLD N/A 0 Nb-95 12 15 <LLD N/A <LLD N/A 0 Zr-95 12 30 <LLD N/A <LLD N/A 0 1-131 12 <LLD N/A <LLD N/A 0 Cs-134 12 15 <LLD N/A <LLD N/A 0 Cs-137 12 18 <LLD N/A <LLD N/A 0 22 | |||
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM | |||
==SUMMARY== | ==SUMMARY== | ||
Surry Power Station, Surry County, Virginia -2015 Docket No. 50"280-281 Page 3 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled | |||
La-140 12 15 <LLD N/A <LLD N/A 0 | Surry Power Station, Surry County, Virginia - 2015 Docket No. 50"280-281 Page 3 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled (Units) Type | ||
---------------------------------------- | !Total No. LLD Mean Range IDistance Name Direction I Mean Range Mean Range Reported Measurements Well Ba-140 12 60 <LLD N/A <LLD N/A 0 Water (pCi/Liter) | ||
La-140 12 15 <LLD N/A <LLD N/A 0 | |||
Gamma 24 K-40 24 102 (8/12) SD 0.4 mi 102 (8/12) 103 (3/12) 0 I l (45.4 -177) NW (45.4 -177) (68.9 -167) I Th-228 24 <LLD SW 4.9 mi 9.95 (2/12) 9.95 (2/12) 0 WNW. (4.69 -15.2) . (4.69 -15.2) | ------------------------------------------------~-------------------------------------------------------------------- | ||
River H-3 8 2000 <LLD N/A <LLD <LLD 0 Water (pCi/uter) | |||
Gamma 24 K-40 24 102 (8/12) SD 0.4 mi 102 (8/12) 103 (3/12) 0 I l (45.4 - 177) NW (45.4 - 177) (68.9 - 167) | |||
I Th-228 24 <LLD SW 4.9 mi 9.95 (2/12) 9.95 (2/12) 0 WNW. (4.69 - 15.2) . (4.69 - 15.2) | |||
Mn-54 24 15 <LLD N/A <LLD <LLD ' 0 i : | |||
Co-58 24 15 <LLD N/A I | |||
<LLD <LLD 0 Fe-59 24 30 <LLD N/A <LLD <LLD 0 Co-60 24 15 <LLD N/A <LLD <LLD 0 Zn-65 24 30 <LLD N/A <LLD <LLD 0 Nb-95 24 .15 <LLD N/A <LLD <LLD 0 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 N/A <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 N/A <LLD <LLD 0 23 | |||
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM | |||
==SUMMARY== | ==SUMMARY== | ||
Surry Power Station, Surry County, Virginia -2015 Docket No. 50-280-281 Page 4 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled | |||
WNW (16900-21200) | Surry Power Station, Surry County, Virginia - 2015 Docket No. 50-280-281 Page 4 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled (Units) Type | ||
(16900-21200) | 'Total No. LLD Mean Range IDistance Name Direction I Mean Range Mean Range Reported Measurements Silt Gamma 4 (pCilkg dry) | ||
Cs-134 4 150 <LLD N/A <LLD <LLD 0 Cs-137 4 180 <LLD CHIC 11.2 mi 205 (2/2) 205 (2/2) 0 WNW (196 -214) (196 -214) Ra-226 4 3260 (1/2) SD 1.3 mi 3260 (1/2) 2260 (1/2) 0 (3260 -3260) NNW (3260 -3260) (2260 -2260) Th-228 4 1340 (2/2) CHIC 11.2 mi 1365 (2/2) 1365 (2/2) 0 (1110 -1340) WNW (1270 -1460) (1270 -1460) Th-232 4 1415 (2/2) CHIC 11.2 mi 1460 (2/2) 1460 (2/2) 0 (1320 -1415) WNW (1130 -1790) (1130 -1790)' | K-40 4 17000 (2/2) CHIC 11.2 mi 19050 (2/2) 19050 (2/2) 0 (12900-21100) WNW (16900-21200) (16900-21200) | ||
Shoreline Gamma 4 Sediment (pCilkg dry) K-40 4 6740 (2/2) HIR 0.6 mi 6740 (2/2) 2035 (2/2) 0 (5720 -7760) N (5720 -7760) (1640 -2430) Cs-134 4 150 <LLD N/A <LLD <LLD 0 Cs-137 4 180 <LLD N/A <LLD <LLD 0 Ra-226 4 1420 (1/2) CHIC 11.2 mi 1639 (2/2) 1639 (2/2) 0 (1420 -1420) WNW. (927 -2350) (927 -2350) Th-228 4 525 (2/2) CHIC 11.2 mi 850 (2/2) 850 (2/2) 0 (315 -734) WNW (330 -1370) (330 -1370) Th-232 4 591 (2/2) CHIC 11.2 mi 882 (2/2) 882 (2/2) 0 (444 -737) WNW (413 -1350) (413 -1350) | Cs-134 4 150 <LLD N/A <LLD <LLD 0 Cs-137 4 180 <LLD CHIC 11.2 mi 205 (2/2) 205 (2/2) 0 WNW (196 - 214) (196 - 214) | ||
Fish Gamma 4 , (pCilkg wet) K-40 4 1898 (4/4) SD 1.3 mi 1898 (4/4) N/A 0 (1040 -2910) NNW (1040 -2910) Mn-54 4 130 <LLD N/A <LLD N/A 0 Co-58 4 130 <LLD N/A <LLD N/A 0 Fe-59 4 260 <LLD N/A <LLD N/A 0 24 TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM | Ra-226 4 3260 (1/2) SD 1.3 mi 3260 (1/2) 2260 (1/2) 0 (3260 - 3260) NNW (3260 - 3260) (2260 - 2260) | ||
Th-228 4 1340 (2/2) CHIC 11.2 mi 1365 (2/2) 1365 (2/2) 0 (1110 - 1340) WNW (1270 - 1460) (1270 - 1460) | |||
Th-232 4 1415 (2/2) CHIC 11.2 mi 1460 (2/2) 1460 (2/2) 0 (1320 - 1415) WNW (1130 -1790) (1130 - 1790)' | |||
Shoreline Gamma 4 Sediment (pCilkg dry) K-40 4 6740 (2/2) HIR 0.6 mi 6740 (2/2) 2035 (2/2) 0 (5720 - 7760) N (5720 - 7760) (1640 - 2430) | |||
Cs-134 4 150 <LLD N/A <LLD <LLD 0 Cs-137 4 180 <LLD N/A <LLD <LLD 0 Ra-226 4 1420 (1/2) CHIC 11.2 mi 1639 (2/2) 1639 (2/2) 0 (1420 - 1420) WNW. (927 - 2350) (927 - 2350) | |||
Th-228 4 525 (2/2) CHIC 11.2 mi 850 (2/2) 850 (2/2) 0 (315 - 734) WNW (330 - 1370) (330 - 1370) | |||
Th-232 4 591 (2/2) CHIC 11.2 mi 882 (2/2) 882 (2/2) 0 (444 - 737) WNW (413 - 1350) (413 - 1350) | |||
Fish Gamma 4 , | |||
(pCilkg wet) ~ | |||
K-40 4 1898 (4/4) SD 1.3 mi 1898 (4/4) N/A 0 (1040 - 2910) NNW (1040 - 2910) | |||
Mn-54 4 130 <LLD N/A <LLD N/A 0 Co-58 4 130 <LLD N/A <LLD N/A 0 Fe-59 4 260 <LLD N/A <LLD N/A 0 24 | |||
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM | |||
==SUMMARY== | ==SUMMARY== | ||
Suny Power Station, Suny County, Virginia -2015 DocketNo.50-280-281 Page5of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled | |||
Oysters Gamma 6 (pCi/kg wet) K-40 6 811 (3/6) MP 4.9 mi 955 (1/2) N/A 0 (611 -955) ESE (955 -955) 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 <LLD N/A <LLD N/A 0 Zn-65 6 260 <LLD N/A <LLD N/A 0 Cs-134 6 130 <LLD N/A <LLD N/A 0 Cs-137 6 150 <LLD N/A <LLD N/A 0 | Suny Power Station, Suny County, Virginia -2015 DocketNo.50-280-281 Page5of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled (Units) Type | ||
Clams Gamma 6 (pCilkg wet) Mn-54 6 130 <LLD N/A <LLD <LLD 0 Co-58 6 130 <LLD N/A <LLD <LLD 0 Fe-59 6 260 <LLD N/A <LLD <LLD 0 25 TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM | !Total No. LLD Mean Range IDistance Name Direction I Mean Range Mean Range Reported Measurements Fish Gamma 4 (pCi/kg wet) | ||
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 Oysters Gamma 6 (pCi/kg wet) | |||
K-40 6 811 (3/6) MP 4.9 mi 955 (1/2) N/A 0 (611 - 955) ESE (955 - 955) | |||
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 <LLD N/A <LLD N/A 0 Zn-65 6 260 <LLD N/A <LLD N/A 0 Cs-134 6 130 <LLD N/A <LLD N/A 0 Cs-137 6 150 <LLD N/A <LLD N/A 0 Clams Gamma 6 (pCilkg wet) | |||
Mn-54 6 130 <LLD N/A <LLD <LLD 0 Co-58 6 130 <LLD N/A <LLD <LLD 0 Fe-59 6 260 <LLD N/A <LLD <LLD 0 25 | |||
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM | |||
==SUMMARY== | ==SUMMARY== | ||
Surry Power Station, Surry County, Vrrginia - 2015 Docket No. 50-280-281 Page 6 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled IT otal Mean I Distance I Mean Mean Reported (Units) Type No. LLD 1 Range Name Direction Range Range Measurements Clams Gamma 6 (pCi/kg v.et) | |||
Co-60 6 130 <LLD NIA <LLD <LLD 0 Zn-65 6 260 <LLD NIA <LLD <LLD 0 Cs-134 6 130 <LLD N/A <LLD <LLD 0 Cs-137 6 150 <LLD NIA <LLD <LLD 0 Crabs Gamma (pCilkg v.et) | |||
K-40 1140 (1/1) SD 1.3 mi 1140 (1/1) NIA 0 (1140 - 1140) NNW (1140 -1140) | |||
Mn-54 ' 130 <LLD NIA <LLD N/A 0 Co-58 130 <LLD NIA <LLD N/A 0 Fe-59 260 <LLD NIA <LLD NIA 0 Co-60 130 <LLD N/A <LLD NIA 0 Zn-65 260 <LLD NIA <LLD NIA 0 Cs-134 130 <LLD NIA <LLD NIA 0 Cs-137 150 <LLD NIA <LLD N/A 0 26 | |||
Results of 2015 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. | 3.2 Analytical Results of 2015 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, 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. | ||
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 | |||
TABLE 3-9: GAMk!A EMITTER AND TRITIUM CONCENTRATIONS IN RIVER WATER Suny Power Station, Suny County, Vuginia - 2015 pCi/liter+/-2 Sigma Page2 of2 SAMPLING COLLECTION LOCATIONS DATE ISOTOPES Mn-54 Co-58 Fe-59 Co-60 Zn-65 SW-C 1/13/2015 -0.63 +/- 2.54 . 0.20 +/- 2.87 -2.88 +/- 5.62 -1.03 +/- 2.79 -7.78 +/- 6.59 2/16/2015 0.22 +/- 1.54 -0.21 +/- 1.72 1.83 +/- 5.27 -0.20 +/- 2.47 1.66 +/- 2.58 3/9/2015 -1. 79 +/- 2.13 -2.06 +/- 2.31 0.50 +/- 4.60 -1.02 +/- 2.00 -5.79 +/- 4.60 4/21/2015 -1.49 +/- 2.76 -1.35 +/- 2.75 0.45 +/- 5.53 -0.82 +/- 2.35 :-0.08 +/- 5.70 5/26/2015 -0.66 +/- 1.29 -0.45 +/- 1.26 -1.67 +/- 2.57 0.14 +/- 1.40 -4.49 +/- 3.19 6/9/2015 -2.38 +/- 2.93 0.28 +/- 3.03 -0.07 +/- 6.97 0.54 +/- 4.03 1.89 +/- 6.51 7/14/2015 1.07 +/- 4.36 6.06 +/- 5.03 -5.73 +/- 9.50 -4.39 +/- 5.25 12.2 +/- 10.8 8/11/2015 0.56 +/- 3.36 1.19 +/- 3.45 4.42 +/- 8.10 -1.98 +/- 4.08 -'7.35 +/- 8.54 9/7/2015 -5.12 +/- 5.40 1.01 +/- 3.54 1.94 +/- 12.6 -0.56 +/- 5.34 -4.64 +/- 11.4 10/13/2015 1. 70 +/- 2.89 -0.47 +/- 2.42 2.50 +/- 5.34 0.69 +/- 2.97 -7.61 +/- 6.13 11/6/2015 -1.74 +/- 2.98 -1.28 +/- 3.01 -0.19 +/- 5.28 0.08 +/- 3.84 -5.20 +/- 8.60 12/1/2015 1.10 +/- 2.84 -0.56 +/- 2.79 6.18 +/- 6.16 0.00 +/- 2.67 -6.45 +/- 6.86 Nb-95 Zr-95 1-131 Cs-134 Cs-137 1/13/2015 2.06 +/- 2.91 1.30 +/- 5.34 2.30 +/- 5.29 0.71 +/- 3.21 0.54 +/- 2.95 2/16/2015 1.53 +/- 2.73 1.93 +/- 3.89 2.08 +/- 5.18 -0.13 +/- 2.44 -0.38 +/- 2.51 3/9/2015 -0.19 +/- 2.29 0. 79 +/- 4.28 3.09 +/- 5.65 -3.72 +/- 2.50 -0.96 +/- 2.40 4/21/2015 0.71 +/- 2.72 . 2.19 +/- 5.06 -4.04 +/- 5.98 0.54 +/- 4.45 0.31 +/- 2.80 5/26/2015 1.28 +/- 1.39 0.60 +/- 2.19 1.23 +/- 2.82 -0.03 +/- 1.63 0.72 +/- 1.33 | |||
' ! 6/9/2015 1.05 +/- 3.02* 1.12 +/- 5.94 0.65 +/- 5.67 -1.70 +/- 3.34 0.08 +/- 3.43 7/14/2015 1.49 +/- 4.45 3.26 +/- 8.16 -3.75 +/- 6.11 1.54 +/- 4.63 -1.00 +/- 5.09 8/11/2015 1.73 +/- 3.19 2.10 +/- 5.50 -4.43 +/- 5.69 -0.65 +/- 3.33 -0.11 +/- 3.85 9/7/2015 -0.56 +/- 4.56 0.75 +/- 7.87 -0.79 +/- 5.54 0.33 +/- 4.40 0.50 +/- 5.22 10/13/2015 0.36 +/- 2.85 -3.34 +/- 4.84 3.83 +/- 3. 78 -1.08 +/- 3.06 2.11 +/- 3.03 11/6/2015 -1.23 +/- 3.66 2.33 +/- 5.15 . 1.76 +/- 5.27 -1.78 +/- 3.12 1.13 +/- 3.66 12/1/2015 -0.33 +/- 2.79 3.49 +/- 5.22 3.02 +/- 5.37. 2.55 +/- 2.54 1.22 +/- 3.08 Ba-140 La-140 H-3 K-40 Th-228 | |||
: _I 1/13/2015 -9.77 +/- 13.6 4.49 +/- 4.92 2/16/2015 1.62 +/- 8.85 3.22 +/- 4.84 3/9/2015 6.29 +/- 13.8 -3.61 +/- 3.34 -244 +/- 470 4/21/2015 -8.12 +/- 14.7 0.49 +/- 3.92 5/26/2015 0.50 +/- 7.02 0.52 +/- 2.15 ' 4.69 +/- 2.61 6/9/2015 -4.06 +/- 22.2 1.78 +/- 5.95 -1090 +/- 962 71.7 +/- 52.7 7/14/2015 -1.90 +/- 20.2 -1.49 +/- 5. 79 15.2 +/- 10.0 8/11/2015 0.52 +/- 16.4 -5.08 +/- 6.31 68.9 +/- 63.7 9/7/2015 -6.41 +/- 13.9 -3.81 +/- 7.32 -360 +/- 563 167 +/- 128 10/13/2015 4.53 +/- 10.6 1.80 +/- 3.68 11/6/2015. -0.15 +/- 12.6 . 0.83 +/- 4.09 12/1/2015 -2.75 +/- 15.1 -3.29 +/- 4.69 161 +/- 551 41 | |||
This pathway also shows measurable amounts of nuclear weapons testing fallout. Therefore, this media needs to be carefully evaluated when trying to determine if there is any station effect. Results of gamma spectroscopy indicate no detectable station related radioactivity in the milk samples. In years past, cesium-137 had been detected sporadically. | |||
The occurrences were attributed to residual global fallout from past atmospheric weapons testing. Cs-137 was not detected at a level above the LLD in 2015. 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. | TABLE 3-10: GAMMA EMITTER CONCENTRATIONS IN SILT Suny Power Station, Suny County, Vrrginia -2015 pCi/kg (dry)+/- 2 Sigma Page 1 ofl SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Cs-134 Cs-137 K-40 Th-232 Th-228 SD 3/9/2015 21.4 +/- 43.5 24.1 +/- 50.8 12900 +/- 1330 1510 +/- 207 1570 +/- 129 9/3/2015 9.64 +/- 79.7 76.4 +/- 90.5 21100 +/- 2630 1320 +/- 285 1110 +/- 177 Ra-226 3/9/2015 3260 +/- 1660 9/3/2015 Cs-134 Cs-137 K-40 Th-232 Th-228 CHIC-C 3/9/2015 14.5 +/- 89.7 196 +/- 134 21200 +/- 2830 1790 +/- 444 1460 +/- 389 9/2/2015 -5.42 +/- 105 214 +/- 130 16900 +/- 2770 1130 +/- 302 1270 +/- 263 Ra-226 3/9/2015 9/2/2015 2260 +/- 2200 42 | ||
No strontium-89 was detected in the four composites analyzed. | |||
Strontium-90 was detected in two of the composite samples at an average concentration of 1. 78 pCi/L. Sr-90 is not a component of the station radiological effluents and is a product of nuclear weapons testing fallout which has been well documented. | TABLE 3-11: GA1Wl:t4 EMITTER CONCENTRATIONS IN SHORELINE SEDIMENT Suny Power Station, Suny County, Virginia- 2015 pCi/kg (dry)+/- 2 Sigma Page 1of1 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE C~134 C~137 K-40 Ra-226 Th-228 HIR 2/23/2015 -10.1 +/- 31.6 -4.60 +/- 23.7 7760 +/- 1000 1420 +/- 912 315 +/- 88.5 8/11/2015 -13.5 +/- 29.8 -12.5 +/- 29.6 5720 +/- 819 734 +/- 79.6 Th-232 2/23/2015 444 +/- 102 8/11/2015 737 +/- 108 CHIC-C 2/23/2015 0.25 +/- 18.4 -7.78 +/- 18.3 2430 +/- 495 927 +/- 639 330 +/- 53.0 8/11/2015 34.3 +/- 35.4 -17.2 +/- 33.9 1640 +/- 600 2350 +/- 1250 1370 +/- 106 Th-232 2/23/2015 413 +/- 86.9 8/11/2015 1350 +/- 173 43 | ||
: 4. 6 Food Products Three samples were collected and analyzed by gamma spectroscopy. | |||
The results of the analyses are presented in Table 3-7. As expected, naturally occurring potassium-40 was detected in all samples. The average concentration is consistent with that observed in previous years. No station related radioactivity was detected. | TABLE 3-12: GAMMA EMITTER CONCENTRATION IN FISH Suny Power Station, Suny County, Virginia*- 2015 pCi/kg (wet) ::l;: 2 Sigma Page 1of1 SAMPLING COLLECTION SAMPLE LOCATION DATE TYPE ISOTOPE K-40 Mn-54 Co-58 Fe-59 SD 4/6/2015 Catfish 2910 +/- 871 1.20 +/- 37.3 -4.54 +/- 34.6 0.18 +/- 63.7 4/6/2015 Game fish 1040 +/- 600 -14.5 +/- 33.8 -21.6 ~ 34.1 -16.8 +/- 75.4 10/7/2015 Catfish 1690 +/- 547 -8.83 +/- 21.4 5.86 +/- 20.6 21.8 +/- 52.9 10/7/2015 Game fish 1950 +/- 771 2.28 +/- 29.2 -3.01 +/- 33.8 19.5 +/- 93.8 Co-60 Zil-65 Cs-134 . Cs-137 4/6/2015 Catfish -13.3 +/- 35.1 -61.0 +/- 79.8 8.94 +/- 39.9 19.8 +/- 38.3 4/6/2015 Game fish 25.9 +/- 33.2 -14~0 +/- 73.2 -81.6 +/- 40.6 -4.67 +/- 38.8 10/7/2015 Catfish 4.30 +/- 24.3 0.42 +/- 42.6 2.65 +/- 25.6 9.87 +/- 23.1 10/7/2015 Game fish 31.9 +/- 30*.8 31.0 +/- 79.6 -2.74 +/- 35.1 -21.9 +/- 36.8 44 | ||
: 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 at three indicator locations and analyzes for gamma radiation and for tritium. The results of these analyses are presented in Table 3-8. Consistent with past monitoring , no station related radioactivity was detected. | |||
No gamma emitting isotopes were detected during the pre-operational period. 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 spectroscopy. | TABLE 3-13: GAMMA EMITTER CONCENTRATIONS IN OYSTERS Suny Power Station, Suny County, Vrrginia - 2015 pCi/kg (wet) +/- 2 Sigma Page 1of1 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 POS 3/9/2015 -2.26 +/- 23.0 -12.4 +/- 25.7 5.51 +/- 44.7 16.7 +/- 24.2 9/3/2015 31.2 +/- 32.1 -9.59 +/- 41.4 -61.9 +/- 72.5 -6.36 +/- 32.8 Zn-65 Cs-134 Cs-137 K-40 3/9/2015 23.0 +/- 49.9 -20.0 +/- 24.1 2.75 +/- 25.2 867 +/- 539 9/3/2015 19.5 +/- 34.8 15.7 +/- 33.5 0.70 +/- 35.8 Mn-54 Co-58 Fe-59 Co-60 MP 3/10/2015 -22.3 +/- 33.1 -34. 7 +/- 36.6 -44.9 +/- 65.0 0.98 +/- 31.8 9/3/2015 -4.80 +/- 26.6 0.23 +/- 25.7 -31.6 +/- 60.6 -25.2 +/- . 25.1 Zn-65 Cs-134 Cs-137 K-40 3/10/2015 -105 +/- 84.6 16.2 +/- 42.1 19.7 +/- 36.2 955 +/- 643 9/3/2015 ' -72.9 +/- 84.5 15.9 +/- 27.7 9.34 +/- 24.9 Mn-54 Co-58 Fe-59 Co-60 LC 3/10/2015 -12.9 +/- 19.4 5.73 +/- 20.4 13.4 +/- 54.6 19.6 +/- 22.1 9/3/2015 -12.6 +/- 37.9 9.64 +/- 40.1 -74.2 +/- 114 2.49 +/- 24.8 Zn-65 Cs-134 Cs-137 K-40 3/13/2013 -26.7 +/- 38.8 -3.04 +/- 21.6 4.29 +/- 19.4 611 +/- 399 9/3/2015 -6.90 +/- 96.6 0.53 +/- 36.0 7.16 +/- 30.5 45 | ||
The 52 monthly samples are also composited and analyzed for tritium on a quarterly basis. Tritium was not detected and, with the exception of natural products, no other gamma emitters were detected. | |||
The naturally occurring radionuclides detected were potassium-40 and thorium-228. | TABLE 3-14: GAMMA EMITTER CONCENTRATIONS IN CLAMS Suny Power Station, Suny County, Vrrginia - 2015 pCi/kg (wet) +/- 2 Sigma Page 1 of 1 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 JI 3/9/2015 -1.79 +/- 22.0 -4.38 +/- 28.0 21.2 +/- 51.6 -3.30 +/- 25.9 9/2/2015 4.35 +/- 27.7 5.45 +/- 24.7 -1.48 +/- 61.9 6.07 +/- 22.2 Zn-65 Cs-134 Cs-137 3/9/2015 -36.4 +/- 52.1 -17.2 +/- 25.4 . 13.2 +/- 24.9 9/2/2015 -7.41 +/- 44.4 -0.84 +/- 28.5 -17.3 +/- 36.8 Mn-54 Co-58 Fe-59 Co-60 SD 3/9/2015 12.4 +/- 27.1 -8.75 +/- 28.4 -23.5 +/- 61.9 13.0 +/- 29.4 9/3/2015 -10.7 +/- 23.5 -14.8 +/- 34.8 -27.5 +/- 61.0 -9.49 +/- 30.1 Zn-65 Cs-134 Cs-137 3/9/2015 -46.5 +/- 6i4 -22.7 +/- 37.4 16.0 +/- 30.0 9/3/2015 23.2 +/- 63.4 3.44 +/- 29.5 -14.6 +/- 31.3 Mn-54 Co-58 Fe-59 Co-60 CHIC-C 3/9/2015 -1.36 +/- 20.1 -8.33 +/- 22.0 15.6 +/- 52.8 -2.10 +/- 17.8 9/2/2015 9.52 +/- 21.7 8.29 +/- 22.5 16.9 +/- 39.7 2.06 +/- 21.6 Zn-65 Cs-134 Cs-137 3/9/2015 -66.1 +/- 46.5 2.24 +/- 28.1 0.41 +/- 22.0 9/2/2015 -51.4 +/- 60.8 -10.3 +/- 20.5 -16.8 +/- 25.1 46 | ||
No station related radioactivity was detected. | |||
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 two locations, one upstream and one downstream of the station. The results of the gamma spectroscopy analyses are presented in Table 3-10. Naturally occurring potassium-40, radium-226, thorium-228 and thorium-232 were detected. | TABLE 3-15: GAMMA EMITTER CONCENTRATIONS IN CRABS Suny Power Station, Suny County, Vrrginia -.2015 pCi/kg (wet)+/- 2 Sigma Page 1 of 1 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE K-40 Mn-54 Co-58 Fe-59 SD 6/9/2015 1140 +/- 725 -9.54 +/- 30.5 9.19 +/- 33.8 -21.1 +/- 78.9 Co-60 Zn-65 Cs-134 Cs-137 18.3 +/- 27.9 -55.4 +/- 75.8 -25.0 +/- 33.3 17.7 +/- 34.2 47 | ||
Historically, cobalt-60 has been detected in samples obtained from the indicator location (SD). Cobalt-60 has not been detected since 2003. Trend graphs of cobalt-60 and cesium-137 in silt appear in Figures 4-4 and 4-5. The concentrations of cesium-137 detected indicate a continual decreasing trend as seen for over two decades. The detection of cesium-137 in both control and indicator samples and decreasing levels indicate that the presence of cesium-137 is the result of accumulation and runoff into the river of residual weapons testing fallout. Its global presence has been well documented. | : 4. DISCUSSION OF RESULTS , | ||
During the operational period, cesium-137 was detected in silt samples with an average concentration as indicated in Figure 4-5. At the control location , cesium-137 was detected with an average concentration of 205 pCi/kg. In 2015 , for the first time, cesium-137 was not detected in the indicator location. | Data from the radiological analyses of environmental media collected during 2015 and tabulated in Section 3, are discussed below. Tue 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. | ||
The cesium-137 concentrations in silt continue to decline and fluctuate around the REMP lower limit of detection (LLD) concentration, which could account for the non-detect. | Participation in this program ensures that independent checks on the precision and accuracy of the measurements of radioactive material in environmental samples are performed. Tue results of the Interlaboratory Comparison Program are provided in Appendix B. | ||
Tue predominant radioactivity detected throughout 2015 was from external sources, such as fallout from nuclear weapons tests (cesium-137) and naturally occurring radionuclides. Naturally occurring nuclides such as beryllium-7, potassium-40, radium-226, thorium-228 and thorium-232 were detected in numerous samples. | |||
Tue following is a discussion and summary of the results of the environmentcil measurements taken during the 2015 reporting period. | |||
4.1 Gamn,,a Exposure Rate A thermoluminescent dosimeter (TLD) is an inorganic crystal used to detect ambient radiation. 'Two TLDs, made of CaF and LiF elements and specifically designed for environmental monitoring, are deployed at each sampling location. | |||
TLDs are placed in two concentric rings around the station. The inner ring is located in the vicinity of the site boundary, and the outer ring is located at approximately five miles from the station. TLDs are also placed in_ special interest areas, such as population centers and nearby residences. Additional TLDs serve as controls. Ambient radiation comes from naturally occurring radioisotopes in the air and soil, radiation from cosmic origin, fallout from nuclear weapons testing, station effluents and direct radiation from the station. | |||
Tue results of the TLD analyses are presented in Table 3..:2. Figure 4-1 shows a historical trend of TLD exposure rate measurements, comparing the average of indicator TLDs located near the site boundary and at 5 miles to the average of all control TLD locations. Control and indicator averages indicate a steady | |||
**relationship. In 2013, Panasonic UD-814 environmental TLDs replaced Harshaw environmental TLDs that were used since 2001. Benchmarking showed that Panasonic UD-814 TLDs were the industry best environmental TLD with improved precision over the Harshaw TLDs. Along with implementing new environmental 48 | |||
TLDs in 2013, an improved method for calculating control dosimeter dose was implemented to estimate transit dose. A program review found that control dosimeters cannot be used directly to assess the transit dose, since control dosimeters also accrue dose from cosmic radiation while stored in the shielded storage cask/ cave. Therefore, additional calculations must be made in order to determine the transit *dose component. This transit dose component was determined by processing the control dosimeters, and subtracting out the monitoring period storage dose. Previously, control dosimeters were assumed to be a direct measurement of transit dose which resulted in a non-conservative (lower) result of reported field doses. The field dose with the replacement TLDs is higher than that of the previously used TLDs as the greater precision and accuracy of the replacement TLD along with improved control dosimeter dose provides a more representative response to ambient radiation. | |||
Figure4-1: DIRECT RADIATION MEASUREMENT TLD RESULTS | |||
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-+- SiteBoundry _._ SMile --.- AvgContro l I 4.2 Airborne Gross Beta Air is continuously sampled by passing it through glass fiber particulate filters. | |||
The filters collect airborne particulate radionuclides. Once a week the samples are collected and analyzed for gross beta activity. Results of the weekly gross beta analyses are presented in Table 3-3. A review of the results from control and indicator locations continues to show no significant variation in measured activities (see Figure 4-2 and 4-3). This indicates that any station contribution is 49 | |||
activities (see Figure 4-2 and 4-3). This indicates that any station contribution is not measurable. As evident in Figure 4-2, the control gross beta concentration deviated from the norm for the sampling period of June 30 - July 7. Electrical power was lost to the control sampler during this sampling period. | |||
Gross beta activity found during the pre-operational and early operating period of Surry Power Station was higher because of nuclear weapons testing. During that time, nearly 740 nuclear weapons were tested worldwide. In 1985 weapons testing ceased, and with the exception of the Chernobyl accident in 1986, airborne gross beta results have remained steady. | |||
Figure 4-2: 2015 GROSS BETA IN AIR PARTICULATES 0.045 0.040 0.035 0.030 | |||
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Figure 4-3: GROSS BETA IN AIR PARTICULATES HISTORICAi. TREND | |||
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- - - Avg lndicator __._ AvgControl - Avg-Pre Op - - Required LLD 4.3 Airborne Radioiodine Air is also continuously sampled for radioiodines by passing it 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. These results are sirriilar to pre-operational data and the results of samples taken prior to and after the 1986 accident in the Soviet Union at Chernobyl and the Fukushima Daiichi nuclear incident in 2011 . | |||
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 is produced by cosmic processes. No man-made radionuclides were identified. These analyses confirm the lack of station effects. | |||
51 | |||
4.5 CowMilk Analysis of milk samples is generally the most sensitive indicator of fission product existence in the terrestrial environment. This, in combination with the fact that consumption of milk is significant, results in this pathway usually being the most critical from the plant release viewpoint. This pathway also shows measurable amounts of nuclear weapons testing fallout. Therefore, this media needs to be carefully evaluated when trying to determine if there is any station effect. | |||
Results of gamma spectroscopy indicate no detectable station related radioactivity in the milk samples. In years past, cesium-137 had been detected sporadically. | |||
The occurrences were attributed to residual global fallout from past atmospheric weapons testing. Cs-137 was not detected at a level above the LLD in 2015. | |||
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 composite samples at an average concentration of 1. 78 pCi/L. Sr-90 is not a component of the station radiological effluents and is a product of nuclear weapons testing fallout which has been well documented. | |||
: 4. 6 Food Products Three samples were collected and analyzed by gamma spectroscopy. The results of the analyses are presented in Table 3-7. As expected, naturally occurring potassium-40 was detected in all samples. The average concentration is consistent with that observed in previous years. No station related radioactivity was detected. | |||
: 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 at three indicator locations and analyzes for gamma radiation and for tritium. The results of these analyses are presented in Table 3-8. Consistent with past monitoring, no station related radioactivity was detected. No gamma emitting isotopes were detected during the pre-operational period. | |||
: 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 spectroscopy. The 52 | |||
monthly samples are also composited and analyzed for tritium on a quarterly basis. Tritium was not detected and, with the exception of natural products, no other gamma emitters were detected. The naturally occurring radionuclides detected were potassium-40 and thorium-228. No station related radioactivity was detected. | |||
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 two locations, one upstream and one downstream of the station. The results of the gamma spectroscopy analyses are presented in Table 3-10. Naturally occurring potassium-40, radium-226, thorium-228 and thorium-232 were detected. Historically, cobalt-60 has been detected in samples obtained from the indicator location (SD). Cobalt-60 has not been detected since 2003. Trend graphs of cobalt-60 and cesium-137 in silt appear in Figures 4-4 and 4-5. | |||
The concentrations of cesium-137 detected indicate a continual decreasing trend as seen for over two decades. The detection of cesium-137 in both control and indicator samples and decreasing levels indicate that the presence of cesium-137 is the result of accumulation and runoff into the river of residual weapons testing fallout. Its global presence has been well documented. During the pre-operational period, cesium-137 was detected in silt samples with an average concentration as indicated in Figure 4-5. At the control location, cesium-137 was detected with an average concentration of 205 pCi/kg. In 2015, for the first time, cesium-137 was not detected in the indicator location. The cesium-137 concentrations in silt continue to decline and fluctuate around the REMP lower limit of detection (LLD) concentration, which could account for the non-detect. | |||
This trend will continue to be closely monitored. | This trend will continue to be closely monitored. | ||
53 l.OE+03 | 53 | ||
"<t" \0 00 0 0 0 0 0 | Figure 4-4: COBALT-60 IN SILT l.OE+ 03 "C | ||
The activities of these radionuclides indicate a steady trend. There were no radionuclides attributable to the operation of the station found 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. These results are the same as those seen over the last decade. No activity was observed in this media except for naturally occurring potassium-40. 55 4.12 Oysters Oysters were collected from three different locations. | Cl | ||
* The results of the oyster analyses are presented in Table 3-13. There were no gamma emitting radionuclides detected in oysters sampled except for naturally occurring potassium-40. | ~ l.OE+02 uQ. | ||
No station related radioactivity has been detected in this media since 1991. The absence of station related radionuclides is attributable to the replacement of steam generators in 1982 and past improvements made to liquid effluent treatment systems. 4.13 Clams Clams are analyzed from three different locations. | l.OE+Ol | ||
The results of the gamma spectroscopy analyses are presented in Table 3-14. Like oysters, no station related radioactivity was *detected. | "<t" 0 | ||
4.14 Crabs A crab sample was collected in June from the station discharge canal and analyzed by gamma spectroscopy. | 0 N | ||
The results of the analysis are presented in Table 3-15. Other than naturally occurring potassium-40, no other gamma emitting radionuclides were detected in the sample. This is consistent with operational data and data collected over the past decade. 56 | \0 0 | ||
: 5. PROGRAM EXCEPTIONS There were two REMP exceptions for scheduled sampling and analysis during 2015. 1. For the sample period Jan 13 -20, samples for gross beta and iodine-131 in air were not obtained from the BASF air sampling station. The BASF air sampler was located within a substation that was permanently removed from service during the Jan 13 -20 sample period. It was unknown to Surry Power Station that the substation was to be removed from service. Prior to the loss of power to the sampler, insufficient sample volume had accumulated to meet the lower limit of detection for gross beta and iodine-131 analyses. | 0 N | ||
00 0 | |||
0 N | |||
0 0 | |||
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0 N | |||
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-+- Control - Chickahominy -+- Station Discharge 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 2015. | |||
54 | |||
Figure 4-5: CESIUM-137 IN SILT | |||
-+- Co ntro l - Chickahominy ......__ Station Discharge - Ave-Pre Op - Required LLD 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. The activities of these radionuclides indicate a steady trend. There were no radionuclides attributable to the operation of the station found 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. These results are the same as those seen over the last decade. No activity was observed in this media except for naturally occurring potassium-40. | |||
55 | |||
4.12 Oysters Oysters were collected from three different locations. | |||
* The results of the oyster analyses are presented in Table 3-13. | |||
There were no gamma emitting radionuclides detected in oysters sampled except for naturally occurring potassium-40. No station related radioactivity has been detected in this media since 1991. The absence of station related radionuclides is attributable to the replacement of steam generators in 1982 and past improvements made to liquid effluent treatment systems. | |||
4.13 Clams Clams are analyzed from three different locations. The results of the gamma spectroscopy analyses are presented in Table 3-14. Like oysters, no station related radioactivity was *detected. | |||
4.14 Crabs A crab sample was collected in June 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 were detected in the sample. This is consistent with pre-operational data and data collected over the past decade. | |||
56 | |||
: 5. PROGRAM EXCEPTIONS There were two REMP exceptions for scheduled sampling and analysis during 2015. | |||
: 1. For the sample period Jan 13 - 20, samples for gross beta and iodine-131 in air were not obtained from the BASF air sampling station. The BASF air sampler was located within a substation that was permanently removed from service during the Jan 13 - 20 sample period. It was unknown to Surry Power Station that the substation was to be removed from service. Prior to the loss of power to the sampler, insufficient sample volume had accumulated to meet the lower limit of detection for gross beta and iodine-131 analyses. | |||
: 2. For the sample period Jun 30 -Jul 7, samples for gross beta and iodine-131 in air were not obtained from the NN air sampling station. The sampler was found inoperable upon arrival at the NN air sampling station. Prior to the loss of power to the sampler, insufficient sample volume had accumulated to meet the lower limit of detection for gross beta and iodine-131 analyses. | : 2. For the sample period Jun 30 -Jul 7, samples for gross beta and iodine-131 in air were not obtained from the NN air sampling station. The sampler was found inoperable upon arrival at the NN air sampling station. Prior to the loss of power to the sampler, insufficient sample volume had accumulated to meet the lower limit of detection for gross beta and iodine-131 analyses. | ||
NOTE: Due to the issues described above, Surry Power station has installed electronic monitoring devices on all REMP air samplers. | NOTE: Due to the issues described above, Surry Power station has installed electronic monitoring devices on all REMP air samplers. These devices monitor for loss of power and low sample flow rate. If either of these conditions is | ||
These devices monitor for loss of power and low sample flow rate. If either of these conditions is . detected on an air sampler, the device makes an immediate notification by page and e-mail. The condition can then be assessed and appropriate actions taken to prevent the loss of monitoring for a sampling period. The 2013 Annual Radiological Environmental Operating Report was submitted with iodine-131 in air sample data omitted for the sample period February 05 through 12 for all eight sampling stations. | . detected on an air sampler, the device makes an immediate notification by page and e-mail. The condition can then be assessed and appropriate actions taken to prevent the loss of monitoring for a sampling period. | ||
Appendix C contains the revised analysis data table for iodine-131 in air for 2013. 57 | The 2013 Annual Radiological Environmental Operating Report was submitted with iodine-131 in air sample data omitted for the sample period February 05 through 12 for all eight sampling stations. Appendix C contains the revised analysis data table for iodine-131 in air for 2013. | ||
This section presents conclusions for each pathway. > Direct Radiation. | 57 | ||
Exposure Pathway -Control and indicator location averages continue to indicate a steady relationship and trend over the long term. > Airborne Exposure Pathway -Analysis of charcoal cartridge samples for radioiodines indicated no positive activity was detected. | : 6. CONCLUSIONS The results of the 2015 Radiological Environmental Monitoring Program for Surry Power Station have been presented in previous sections. This section presents conclusions for each pathway. | ||
Quarterly gamma isotopic analyses of the composite | > Direct Radiation. Exposure Pathway - Control and indicator location averages continue to indicate a steady relationship and trend over the long term. | ||
* particulate samples identified only naturally occurring beryllium-7 and .Potassium-40. | > Airborne Exposure Pathway - Analysis of charcoal cartridge samples for radioiodines indicated no positive activity was detected. Quarterly gamma isotopic analyses of the composite | ||
Air particulate gross beta concentrations at all of the indicator locations for 2015 trend well with | * particulate samples identified only naturally occurring beryllium-7 and .Potassium-40. Air particulate gross beta concentrations at all of the indicator locations for 2015 trend well with | ||
* the control location. | * the control location. | ||
> Milk -Milk samples are an important indicator measuring the effect of radioactive iodine and radionuclides in airborne releases. | > Milk - Milk samples are an important indicator measuring the effect of radioactive iodine and radionuclides in airborne releases. Cesium-137 and iodine-131 were not detected in any of the thirty-six samples. Naturally occurring potassium-40 was detected at a similar level when compared to the averages of th~ previous years. | ||
Cesium-137 and iodine-131 were not detected in any of the thirty-six samples. Naturally occurring potassium-40 was detected at a similar level when compared to the averages of previous years. Strontium-90 was detected in two samples at an average concentration of 1. 78 pCi/L. Strontium-90 is not a component of station effluents, but rather, a product of nuclear weapons testing fallout. | I : | ||
Tritium was not detected. | Strontium-90 was detected in two samples at an average concentration of | ||
)-Silt -Cesium-137 was detected in the control sample and not in the indicator sample. The presence of cesium-137 is attributable to residual weapons testing fallout and its presence has been well documented. | : 1. 78 pCi/L. Strontium-90 is not a component of station effluents, but rather, a product of nuclear weapons testing fallout. | ||
Cobalt-60 has not been detected since 2003. | > Food Products .- As expected, naturally occurring potassium-40 was detected in all three samples. In the past, cesium-137 had occasionally been detected in these samples and is attributable to global fallout from past nuclear weapons testing. Cesium-137 was not detected in any of the three samples collected in 2015. | ||
* 58 | > Well Water - Well water sample analyses indicated there was no radioactivity attributable to the operation of the station. This trend is consistent throughout the monitoring period. | ||
);>-Shoreline Sediment -Naturally occurring radionuclides were detected at concentrations equivalent to normal* background activities. | )- River Water - River water samples were analyzed for gamma emitting radionuclides and tritium. Only the naturally occ:urring gamma emitting radionuclides potassium-40 and thorium-228 were detected. Tritium was not detected. | ||
There were no radionuclides attributable to tb.e operation of Surry Power Station found in any sample. Aquatic Biota );>-Fish -As expected, naturally occurring potassium-40 was detected. | )- Silt - Cesium-137 was detected in the control sample and not in the indicator sample. The presence of cesium-137 is attributable to residual weapons testing fallout and its presence has been well documented. Cobalt-60 has not been detected since 2003. | ||
There were no other gamma emitting radionuclides detected in any of the fish samples. >--Oysters and Clams -Other than naturally occurring potassium-40, there were no other gamma emitting radionuclide*s detected in any of the oyster or clam samples. * );>-Crabs -Naturally occurring potassium-40 was detected. | * 58 | ||
No other gamma emitting radionuclides were detected. | |||
59 REFERENCES 60 | );>- Shoreline Sediment - Naturally occurring radionuclides were detected at concentrations equivalent to normal* background activities. There were no radionuclides attributable to tb.e operation of Surry Power Station found in any sample. | ||
Aquatic Biota | |||
: 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, "Envrronmental 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)". | );>- Fish - As expected, naturally occurring potassium-40 was detected. There were no other gamma emitting radionuclides detected in any of the fish samples. | ||
: 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: | >-- Oysters and Clams - Other than naturally occurring potassium-40, there were no other gamma emitting radionuclide*s detected in any of the oyster or clam samples. * | ||
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. 61 APPENDICES 62 APPENDIX A: LAND USE CENSUS Year 2015 63 LAND USE CENSUS* Surry Power Station, Surry County, Virginia January 1 to December 31, 2015 Page 1 of 1 Nearest Nearest Nearest Nearest Sector Direction Resident Garden** Cow Goat A N 4.1@ 10° (a) (a) (a) B NNE 1.9 @32° (a) (a) (a) c NE 4.7@35° (a) (a) (a) D ENE (a) (a) (a) (a) E E (a) (a) (a) (a) F ESE (a) (a) (a) (a) G SE 2.8@ 142° (a) (a) (a) H SSE 2.7@ 158° 2.7@ 158° (a) (a) J s l.7@181° 2.0@ 183° (a) (a) K SSW 1.9@ 192° 1.9@ 192° 4.8@200° (a) L SW 2.3@221° 4.7@228° (a) (a) M WSW 0.4@244° 3.6@245° (a) (a) N w 3.1 @260° 3.4@260° (a) (a) p WNW 4.9@283° (a) (a) (a) Q NW 4.6@321° (a) (a) (a) R NNW 3.8 @338° 4.4@334° 3.7@336° (a) | );>- Crabs - Naturally occurring potassium-40 was detected. No other gamma emitting radionuclides were detected. | ||
* Locations are listed by miles and degrees heading relative to true north from center of Unit #1 Containment. | 59 | ||
** Area greater than 50 m 2 and contains broadleaf vegetation. (a) None 64 APPENDIX B: | |||
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, "Envrronmental 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)". | |||
I | |||
~ | |||
: 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. | |||
61 | |||
APPENDICES 62 | |||
APPENDIX A: LAND USE CENSUS Year 2015 63 | |||
LAND USE CENSUS* | |||
Surry Power Station, Surry County, Virginia January 1 to December 31, 2015 Page 1 of 1 Nearest Nearest Nearest Nearest Sector Direction Resident Garden** Cow Goat A N 4.1@ 10° (a) (a) (a) | |||
B NNE 1.9 @32° (a) (a) (a) c NE 4.7@35° (a) (a) (a) | |||
D ENE (a) (a) (a) (a) | |||
E E (a) (a) (a) (a) | |||
F ESE (a) (a) (a) (a) | |||
G SE 2.8@ 142° (a) (a) (a) | |||
H SSE 2.7@ 158° 2.7@ 158° (a) (a) | |||
J s l.7@181° 2.0@ 183° (a) (a) | |||
K SSW 1.9@ 192° 1.9@ 192° 4.8@200° (a) | |||
L SW 2.3@221° 4.7@228° (a) (a) | |||
M WSW 0.4@244° 3.6@245° (a) (a) | |||
N w 3.1 @260° 3.4@260° (a) (a) p WNW 4.9@283° (a) (a) (a) | |||
Q NW 4.6@321° (a) (a) (a) | |||
R NNW 3.8 @338° 4.4@334° 3.7@336° (a) | |||
* 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 broadleaf vegetation. | |||
(a) None 64 | |||
APPENDIX B: | |||
==SUMMARY== | ==SUMMARY== | ||
OF INTERLABORATORY COMPARISONS Year 2015 65 INTRODUCTION This appendix covers the Interlaboratory Comparison Program (ICP) of Teledyne Brown Engineering (TBE). TBE use QA/ QC samples provided by Eckert & Ziegler Analytics, Inc., Environmental Resource Associates (ERA) and the Mixed Analyte Performance Evaluation Program (MAPEP) to monitor the quality of analytical processing associated with the REMP. Each provider has a documented Quality Assurance program and the capability to prepare Quality Control materials traceable to the National Institute of Standards and Technology (NIST). The providers supply the samples to TBE, and upon receipt, the laboratories perform the analyses in a normal manner. The results are then reported to the provider for evaluation. | OF INTERLABORATORY COMPARISONS Year 2015 65 | ||
The suite of QA/QC samples is designed to provide sample media and radionuclide combinations that are offered by the providers and included in the REMP and typically includes: | |||
>-milk for gamma nuclides and low-level iodine-131 analyses, >-milk for Sr-89 and Sr-90 analyses, >-water for gamma nuclides, low-level iodine-131, and gross beta analyses, >-water for tritium, Sr-89, and Sr-90 analyses, >-cartridge for I-131 analyses, >-air filter for gamma nuclide, gross beta, and Sr-90 analyses. | INTRODUCTION This appendix covers the Interlaboratory Comparison Program (ICP) of Teledyne Brown Engineering (TBE). TBE use QA/ QC samples provided by Eckert & Ziegler Analytics, Inc., Environmental Resource Associates (ERA) and the Mixed Analyte Performance Evaluation Program (MAPEP) to monitor the quality of analytical processing associated with the REMP. Each provider has a documented Quality Assurance program and the capability to prepare Quality Control materials traceable to the National Institute of Standards and Technology (NIST). The providers supply the samples to TBE, and upon receipt, the laboratories perform the analyses in a normal manner. The results are then reported to the provider for evaluation. The suite of QA/QC samples is designed to provide sample media and radionuclide combinations that are offered by the providers and included in the REMP and typically includes: | ||
>- milk for gamma nuclides and low-level iodine-131 analyses, | |||
>- milk for Sr-89 and Sr-90 analyses, | |||
>- water for gamma nuclides, low-level iodine-131, and gross beta analyses, | |||
>- water for tritium, Sr-89, and Sr-90 analyses, | |||
>- cartridge for I-131 analyses, | |||
>- air filter for gamma nuclide, gross beta, and Sr-90 analyses. | |||
The accuracy of each result reported to Eckert & Ziegler Analytics, Inc. is' measured by the ratio of the TBE result to the known value. Accuracy for all other results is based on statistically derived acceptance ranges calculated by the providers. | The accuracy of each result reported to Eckert & Ziegler Analytics, Inc. is' measured by the ratio of the TBE result to the known value. Accuracy for all other results is based on statistically derived acceptance ranges calculated by the providers. | ||
* An investigation is undertaken whenever the ratio or reported result fell outside of the acceptance range. | |||
RESULTS The TBE ICP results are included in the following tables for the first through the fourth quarters of 2015. Some analyses did not meet the acceptance criteria. TBE initiated non-conformance reports (NCRs) to document and address the analyses. | |||
The results of the NCRs are as follows. | |||
: 1. NCR 15-09, ERA water sample RAD | |||
==SUMMARY== | ==SUMMARY== | ||
............................................................................................................... 5 | |||
: 2. PROGRAM DESCRIPTION ............................................................................................................ 7 2.1 Introduction ............................................................................................................................. ? | |||
............................................................................................................ | 2.2 Sampling and Analysis Program ...................................................................... :...................... 8 | ||
7 2.1 Introduction | : 3. ANALYTICAL RESULTS ............................................................................................................. 20 3.1 Summary of Results .............................................................................................................. 20 3.2 Analytical Results of 2015 REMP Samples ........................................................................ .27 | ||
............................................................................................................................. | : 4. DISCUSSION OF RESULTS ...................................................................................................... 48 4.1 Gamma Exposure Rate ........................................................................................................_.48 4.2 Airborne Gross Beta.............................................................................................................. 49 4.3 Airborne Radioiodine ............................................................................................................ 51 4.4 Air Particulate Gamma ......................................................................................................... 51 4.5 cow Milk .............................................................................................................................. 52 4.6 Food Products ....................................................................................................................... 52 4.7 Well Water ............................................................................................................................ 52 4.8 RiverWater ........................................................................................................................... 52 4.9 Silt .........................................................................................................-................................ 53 4.10 Shoreline Sediment ............................................................................................................. 55 4.11 Fish ................................................................. :.................................................................... 55 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: | ||
20 3 .1 Summary of Results .............................................................................................................. | |||
20 3.2 Analytical Results of 2015 REMP Samples ........................................................................ | |||
.27 4. DISCUSSION OF RESULTS ...................................................................................................... | |||
48 4.1 Gamma Exposure Rate ........................................................................................................ | |||
_.48 4.2 Airborne Gross Beta .............................................................................................................. | |||
49 4.3 Airborne Radioiodine | |||
............................................................................................................ | |||
51 4.4 Air Particulate Gamma ......................................................................................................... | |||
51 4.5 cow Milk .............................................................................................................................. | |||
52 4.6 Food Products ....................................................................................................................... | |||
52 4.7 Well Water ............................................................................................................................ | |||
52 4.8 RiverWater | |||
........................................................................................................................... | |||
52 4.9 Silt ......................................................................................................... | |||
-................................ | |||
53 4.10 Shoreline Sediment ............................................................................................................. | |||
55 4.11 Fish ................................................................. | |||
: .................................................................... | |||
55 4.12 Oysters ................................................................................................................................ | |||
56 4.13 Clams .................................................................................................................................. | |||
56 4.14 Crabs ................................................................................................................................... | |||
........................................................................................................... | |||
............................................................................................................................. | |||
58 REFERENCES | |||
.................................................................................................................................... | |||
60 APPENDICES | |||
................................... | |||
: ................................................................................................. | |||
62 APPENDIX A: LAND USE CENSUS ........................................................................................... | |||
63 APPENDIX B: | |||
==SUMMARY== | ==SUMMARY== | ||
OF INTERLABORATORY COMPARISONS | OF INTERLABORATORY COMPARISONS ............................... 65 APPENDIX C: ERRATA .................................................................................... 73 3 | ||
............................... | |||
65 APPENDIX C: ERRATA .................................................................................... | PREFACE This report is submitted as required by Technical Specification 6.6.B.2, Annual Radiological Environmental 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, Item 1.3.1. | ||
73 3 PREFACE This report is submitted as required by Technical Specification 6.6.B.2, Annual Radiological Environmental 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, Item 1.3.1. 4 | 4 | ||
: 1. EXECUTIVE | : 1. EXECUTIVE | ||
==SUMMARY== | ==SUMMARY== | ||
This document is a detailed report of the 2015 Surry Power Station Radiological Environmental Monitoring Program (REMP). | This document is a detailed report of the 2015 Surry Power Station Radiological Environmental Monitoring Program (REMP). | ||
* Radioactivity levels from January 1 through December 31, 2015, in air, water, silt,,* shoreline sediment, milk, aquatic biota, food products and direct exposure pathways have been analyzed, evaluated and summarized. | * Radioactivity levels from January 1 through December 31, 2015, 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 radiologicai 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 REMP is designed to confirm that radiologicai 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. | ||
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. | 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 | ||
The first type, control samples, is collected from areas that are beyond the measurable influence of Surry Power Station or any other nuclear *facility. | *facility. These samples* represent normal background radiation levels. | ||
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. | Background radiation levels can be compared to the environment surrounding the station. Indicator samples are the second sample type obtained. These sampJes show how much radiation. is contributed to the enVironment by the station . | ||
These sampJes show how much radiation. | .Indicator samples are taken from areas dose to the station where any station contribution will be at the highest concentration. | ||
is contributed to the enVironment by the station . . Indicator samples are taken from areas dose 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 | ||
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 | *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. | ||
*and Fukushima Daiichi accidents that released radioactive material to the environment. | Teledyne Brown Engineering, Inc. (TBE) provides radioanalyses for this program and Global Dosimetry Solutions, Inc. provides thermoluminescent dosimetry (TLD) services. Participation in an Interlaboratory Comparison Pr~gram 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. | ||
Teledyne Brown Engineering, Inc. (TBE) provides radioanalyses for this program and Global Dosimetry Solutions, Inc. provides thermoluminescent dosimetry (TLD) services. | Because of this, *the United States Nuclear Regulatory Commissfon (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 5 | ||
Participation in an Interlaboratory Comparison 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 Commissfon (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. | 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. | ||
The USNRC also mandates a reporting 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. 1Jie 2015 airborne results were similar 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 potassium~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. The cesium-137 activity was present in the control and. indicator locations and is attributable to global fallout from past nuclear weapons testing and nuclear accidents such as Chernobyl. | ||
Shoreline sed:tinent, which may provide a direct exposure pathway, contained no station related* radionuclides. Naturally occurring radionuclides potassium, radium and thorium were detected at average environmental levels. The terrestrial exposure pathway includes milk and food products. Iodine-131 was | |||
Licensed nuclear facilities must report the radionuclide activities in those environmental samples that are equal to or greater than the specified reporting level. Environmental radiation levels are sometimes referred to as a percent of the reporting level. Analytical results are reported for all possible radiation exposure pathways to man. These pathways include airborne, aquatic, terrestrial and direct radiation exposure. | :riot detected in any 2015 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 man-made radionuclides were detected in food product samples. Consistent with historical data, naturally occurring potassium-40 was detected in milk and food. | ||
The airborne exposure pathway includes radioactive airborne iodine and particulates. | products. The direct exposure pathway measures environmental radiation doses using TLDs~ TLD results have remained relatively constant over the years. | ||
1Jie 2015 airborne results were similar 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 | During 2015, 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 2015 was 0.030 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 %. | ||
The cesium-137 activity was present in the control and. indicator locations and is attributable to global fallout from past nuclear weapons testing and nuclear accidents such as Chernobyl. | These results demonstrate compliance with federcll and state regulations and also demonstrate the adequacy of radioactive effluent controls at Surry Power Station. | ||
Shoreline sed:tinent, which may provide a direct exposure pathway, contained no station related* radionuclides. | 6 | ||
Naturally occurring radionuclides potassium, radium and thorium were detected at average environmental levels. The terrestrial exposure pathway includes milk and food products. | : 2. PROGRAM DESCRIPTION 2.1 Introduction This report documents the 2015 Surry Power Station operational Radiological Environmental Monitoring Program (REMP). The Dominion 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 | ||
Iodine-131 was :riot detected in any 2015 milk samples and has not been detected in milk prior to or since. the 1986 Chernobyl accident. | . with a nominal gross electrical output of 910 megawatts electric (MWe). Unit 1 achieved commercial operation on D*ecember 22, 1972, and Unit 2 on May 1,. | ||
Strontium-90 was detected in milk and this activity is attributable to past atmospheric nuclear weapons testing. No made radionuclides were detected in food product samples. Consistent with historical data, naturally occurring potassium-40 was detected in milk and food. products. | 1973. | ||
The direct exposure pathway measures environmental radiation doses using TLD results have remained relatively constant over the years. | The United States Nuclear Regulatory Commission regulations (10CFR50.34a) | ||
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 federcll and state regulations and also demonstrate the adequacy of radioactive effluent controls at Surry Power Station. 6 | .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 . | ||
: 2. PROGRAM DESCRIPTION | Reasonably Achievable. To ensure these criteria are met, the operating license for Surry Power Station includes Technical 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 against unexpected or undefined environmental processes which might allow undue accumulation of radioactivity in the environment, a program for monitoring the station environs is also included in Surry Power Station Technical Specifications. | ||
Dominion personnel are responsible for collecting the various indicator and control environmental samples. Global Dosimetry Solutions Incorporated is responsible for processing the TLDs. Teledyne Brown Engineering is responsible | |||
* for sample analyses. The results of the analyses are used to determine if changes in radioactivity levels may be attributable to station operations. Measured values are compared with control values, which vary with time due to external events, such as cosmic ray bombardment, nuclear weapons test fallout and seasonal variations of naturally occurriilg radionuclides. Data collected prior to station . | |||
operation is used to indicate the degree of natural variation to be expected. This pre-operational data is compared with data collected during the operational phase to assist in evaluating any radiological impact of station operation. | |||
Occasionally, samples of environmental media 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). | |||
7 | |||
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 2015 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 tli~ 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 Table 2-1 summarizes the 2015 sampling program for Surry Power Station. All samples listed in Table 2-1 are taken at indicator locations except those labeled "control." Dominion personnel collect all samples listed in Table 2-1. | |||
Table 2-2 summarizes the analysis program conducted by Teledyne Brown Engineering and Global Dosimetry Solutions 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 Global Dosimetry Solutions, located in Costa Mesa, 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-2015 RADIOLOGICAL SAMPLING STATIONS DISTANCE AND DIRECTION FROM UNIT NO. 1 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° 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 Population 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-2015 RADIOLOGICAL SAMPLING STATIONS DISTANCE AND DIRECTION FROM UNIT NO. 1 Distance Collection Sample Media Location Station Miles Direction Degrees Frequency Remarks Environmental BASF (34) 5.1 ENE 70° Quarterly Apx. 5 mile TLDs LeeHall (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 (HIR) 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 (HIR) 2.0 NNE 28° Quarterly Construction Site (CS) 0.3 E 870 Quarterly Shoreline Hog Island Reserve (HIR) 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) 1.3 NNW 341° Semi-Annually 10 | |||
Table 2-1 SURRY-2015 RADIOWGICAL SAMPLING STATIONS DISTANCE AND DIRECTION FROM UNIT NO. 1 Distance Collection Sample Media Location Station Miles Direction Degrees Frequency Remarks Milk Colonial Parkway (CP) 3.7 NNW 336° Monthly Williams (WMS) 27.5 s 175° Monthly Control Location Fpps (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 Lawne's Creek (LC) 2.4 SE 131° 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 (JI) 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 | |||
Table 2-2 SURRY-2015 SAMPLE ANALYSIS PROGRAM SAMPLE MEDIA FREQUENCY ANALYSIS LLD* REPORT UNITS Thermoluminescent Quarterly Gamma Dose 2 mR/Std. Month Dosimetry (TLD) 3 Air Iodine Weekly I-131 0.07 pCi/m 3 | |||
Air Particulate Weekly Gross Beta 0.01 pCi/m 3 | |||
Quarterly (a) Gamma Isotopic pCi/m 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 Co-58 15 Fe-59 30 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 Gamma Isotopic pCi/L Mn-54 15 Co-58 15 Fe-59 30 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 -2015 SAMPLE ANALYSIS PROGRAM 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 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 Co-58 130 Fe-59 260 Co-60 130 Zn-65 260 Cs-134 130 Cs-137 150 Clams Semi-Annually Gamma Isotopic pCi/kg- wet Mn-54 130 Co-58 130 Fe-59 260 Co-60 130 Zn-65 260 Cs-134 130 Cs-137 150 Crabs Annually Gamma Isotopic pCi/kg- wet Mn-54 130 Co-58 130 Fe-59 260 Co-60 130 Zn-65 260 Cs-134 130 Cs-137 150 Footnotes located at end of table. | |||
13 | |||
Table 2-2 SURRY-2015 SAMPLE ANALYSIS PROGRAM SAMPLE MEDIA FREQUENCY ANALYSIS LLD* REPORT UNITS Fish Semi-Annually Gamma Isotopic pCi/kg- wet Mn-54 130 Co-58 130 Fe-59 260 Co-60 130 Zn-65 260 Cs-134 130 Cs-137 150 Food Products Annually Gamma Isotopic pCi/kg- wet I-131 60 Cs-134 60 Cs-137 80 Note: This table is not a complete listing of nuclides that can be detected and reported. Other peaks that are are measurable and identifiable, together with the above 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 | |||
\ | |||
WSW \ | |||
ESE SW Legend | |||
** Air Sampling Stations TLD Sampling State Environmental SSW Monitoring Sites | |||
* State TLD Sites Figure 1. Surry Radiological Monitoring Locations | |||
Figure 2. Surry Emergency Plan Map e Air Sampling Stations e Nearest Residents e TLD Sampling e Nearest Milk Animal e Nearest Garden Aquatic Samples Original © 1991 by ADC of Alexandria, Inc., 6440 General Green Way, Al exandria, VA 223 12. USED WITH PERMISS ION . No other reproduction may be made without the written permission of ADC . | |||
SSE w | |||
00 e | |||
9 Figure 4. | |||
Air Sampling Stations rLosampling e | |||
9 Nearest Residents NearestMilkAnimal w* . | |||
~@ /"*<~ | |||
,. .;, -?" \ | |||
'* . ~W:;;JrF ,\ | |||
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~ ** | |||
e Nearest Garden Crop Samples Original © 1991 by ADC of Alexandria, Inc. , 6440 General Green Way, Alexandria, VA 223 12. USED WITH PER MISS ION. No oth er reproducti on | |||
'\*°':-./ BC | |||
.\ | |||
YEl,l \ -0~~"'* | |||
~ | |||
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/ ,. ..,. (:\>*:":.,. | |||
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**.~'fl".-,,,,,.,,.,. .-...) | |||
l ~'* s :~IG* | |||
may be made without th e written permission of ADC. | |||
Figure 5. Surry Emergency Plan Map e Air Sampling Stations e Nearest Residents e TLD Sampling e Nearest Milk Animal e Nearest Garden Aquatic Samples Original © 1991 by ADC of Al exandria, Inc., 6440 General Green Way, Alexandria , VA 22312 . USE D WITH PERM ISS ION . No other reproduction may be made without the written permission of ADC . | |||
Ciro ~'.f | |||
.,._/ .----------'---- ) */ | |||
: 3. ANALYTICALRESULTS 3.1 Summary ofResults 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 iri 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 | |||
: 3. ANALYTICALRESULTS | |||
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM | |||
==SUMMARY== | ==SUMMARY== | ||
Surry Power Station, Surry County, Virginia -2015 Docket No. 50-280-281 Page 1 o'f6 Medium or Pathway Analysis Sampled | |||
STA-9 0.3 mi | Surry Power Station, Surry County, Virginia - 2015 Docket No. 50-280-281 Page 1 o'f6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled (Units) Type | ||
BC 4.5 mi 17.1 (52/52) 15.9 (51/52) 0 Particulate Beta (2.91 -36.3) SSW (2.94 -36.3) (3.12 -32.8) (1E-3 pCi/m3) -------------------------------------------------------------------- | !Total No. LLD Mean Range I Distance Name Direction I Mean Range Mean Range Reported Measurements Direct Gamma 164 2 5.7 (152/152) STA-9 0.3 mi 7.8 (4/4) 6.0 (12/12) 0 Radiation (3.4 - 8.2) E (7.3 - 8.2) (5.0 - 7.5) | ||
Gamma 32 Be-7 32 130 (28/28) ALL 5.1*mi 165 (414) 141 (4/4) 0 (94.1 -187) WSW (128 -187) (136 -151) K-40 32 17.2 (5/28) HIR 2.0 mi 22.8 (1/4) <LLD 0 (10.0 -24.6) NNE (22.8 -22.8) 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 pq!m3) ------------------------------------------------------------------- | TLD (mRI Std Month) | ||
Air Gross 416 10 14.7 (359/364) BC 4.5 mi 17.1 (52/52) 15.9 (51/52) 0 Particulate Beta (2.91 - 36.3) SSW (2.94 - 36.3) (3.12 - 32.8) | |||
(1E-3 pCi/m3) -------------------------------------------------------------------- | |||
Gamma 32 Be-7 32 130 (28/28) ALL 5.1*mi 165 (414) 141 (4/4) 0 (94.1 - 187) WSW (128 - 187) (136 - 151) | |||
Gamma 36 K-40 36 1323 (24/24) EPPS 4.8 ml '1352 (12/12) 1296 (12/12) 0 (1070 -1570) SSW (1240 -1570) (1130 -1430) 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 I TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM | K-40 32 17.2 (5/28) HIR 2.0 mi 22.8 (1/4) <LLD 0 (10.0 - 24.6) NNE (22.8 - 22.8) | ||
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 pq!m3) | |||
Milk Strontium 4 (pCi!Liter) | |||
Sr-89 4 <LLD N/A <LLD <LLD 0 Sr-90 4 1. 78 (2/4) CP 3.7 mi 1. 78 (2/4) <LLD 0 (1.76-1.80) NNW (1.76 - 1.80) | |||
------------------------------------~----*-----------------------~------ | |||
Gamma 36 K-40 36 1323 (24/24) EPPS 4.8 ml '1352 (12/12) 1296 (12/12) 0 (1070 - 1570) SSW (1240 - 1570) (1130 - 1430) 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 I | |||
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM | |||
==SUMMARY== | ==SUMMARY== | ||
Surry Power Station, Surry County, Virginia -2015 Docket No. 50-280-281 Page 2 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled | |||
Well H-3 12 2000 <LLD N/A <LLD N/A 0 Water (pCi!Liter) | Surry Power Station, Surry County, Virginia - 2015 Docket No. 50-280-281 Page 2 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled (Units) Type | ||
--------------- | !Total No. LLD Mean Range IDistance | ||
.. ------------------------------------------------------------- | .Name Direction I Mean Range Mean Range Reported Measurements Food Gamma 3 Products (pCi!kg wet) K-40 3 9090 (3/3) Slade 3.2mi 17800 (1/1) N/A 0 (3830 - 17800) s (17800-17800) 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 K-40 12 88.5 (1/12) cs 0.3mi 88.5 (1/12) N/A 0 (88.5 - 88.5) E . (88.5 - 88.5) | ||
Gamma 12 | Mn-54 12 15 <LLD N/A <LLD N/A 0 Co-58 12 15 <LLD N/A <LLD N/A 0 I | ||
I Fe-59 12 30 <LLD N/A <LLD N/A ** 0 Co-60 12. 15 <LLD N/A <LLD N/A 0 Zn-65 12 30 <LLD N/A <LLD N/A 0 Nb-95 12 15 <LLD N/A <LLD N/A 0 Zr-95 12 30 <LLD N/A <LLD N/A 0 1-131 12 <LLD N/A <LLD N/A 0 Cs-134 12 15 <LLD N/A <LLD N/A 0 Cs-137 12 18 <LLD N/A <LLD N/A 0 22 | |||
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM | |||
==SUMMARY== | ==SUMMARY== | ||
Surry Power Station, Surry County, Virginia -2015 Docket No. 50"280-281 Page 3 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled | |||
La-140 12 15 <LLD N/A <LLD N/A 0 | Surry Power Station, Surry County, Virginia - 2015 Docket No. 50"280-281 Page 3 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled (Units) Type | ||
---------------------------------------- | !Total No. LLD Mean Range IDistance Name Direction I Mean Range Mean Range Reported Measurements Well Ba-140 12 60 <LLD N/A <LLD N/A 0 Water (pCi/Liter) | ||
La-140 12 15 <LLD N/A <LLD N/A 0 | |||
Gamma 24 K-40 24 102 (8/12) SD 0.4 mi 102 (8/12) 103 (3/12) 0 I l (45.4 -177) NW (45.4 -177) (68.9 -167) I Th-228 24 <LLD SW 4.9 mi 9.95 (2/12) 9.95 (2/12) 0 WNW. (4.69 -15.2) . (4.69 -15.2) | ------------------------------------------------~-------------------------------------------------------------------- | ||
River H-3 8 2000 <LLD N/A <LLD <LLD 0 Water (pCi/uter) | |||
Gamma 24 K-40 24 102 (8/12) SD 0.4 mi 102 (8/12) 103 (3/12) 0 I l (45.4 - 177) NW (45.4 - 177) (68.9 - 167) | |||
I Th-228 24 <LLD SW 4.9 mi 9.95 (2/12) 9.95 (2/12) 0 WNW. (4.69 - 15.2) . (4.69 - 15.2) | |||
Mn-54 24 15 <LLD N/A <LLD <LLD ' 0 i : | |||
Co-58 24 15 <LLD N/A I | |||
<LLD <LLD 0 Fe-59 24 30 <LLD N/A <LLD <LLD 0 Co-60 24 15 <LLD N/A <LLD <LLD 0 Zn-65 24 30 <LLD N/A <LLD <LLD 0 Nb-95 24 .15 <LLD N/A <LLD <LLD 0 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 N/A <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 N/A <LLD <LLD 0 23 | |||
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM | |||
==SUMMARY== | ==SUMMARY== | ||
Surry Power Station, Surry County, Virginia -2015 Docket No. 50-280-281 Page 4 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled | |||
WNW (16900-21200) | Surry Power Station, Surry County, Virginia - 2015 Docket No. 50-280-281 Page 4 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled (Units) Type | ||
(16900-21200) | 'Total No. LLD Mean Range IDistance Name Direction I Mean Range Mean Range Reported Measurements Silt Gamma 4 (pCilkg dry) | ||
Cs-134 4 150 <LLD N/A <LLD <LLD 0 Cs-137 4 180 <LLD CHIC 11.2 mi 205 (2/2) 205 (2/2) 0 WNW (196 -214) (196 -214) Ra-226 4 3260 (1/2) SD 1.3 mi 3260 (1/2) 2260 (1/2) 0 (3260 -3260) NNW (3260 -3260) (2260 -2260) Th-228 4 1340 (2/2) CHIC 11.2 mi 1365 (2/2) 1365 (2/2) 0 (1110 -1340) WNW (1270 -1460) (1270 -1460) Th-232 4 1415 (2/2) CHIC 11.2 mi 1460 (2/2) 1460 (2/2) 0 (1320 -1415) WNW (1130 -1790) (1130 -1790)' | K-40 4 17000 (2/2) CHIC 11.2 mi 19050 (2/2) 19050 (2/2) 0 (12900-21100) WNW (16900-21200) (16900-21200) | ||
Shoreline Gamma 4 Sediment (pCilkg dry) K-40 4 6740 (2/2) HIR 0.6 mi 6740 (2/2) 2035 (2/2) 0 (5720 -7760) N (5720 -7760) (1640 -2430) Cs-134 4 150 <LLD N/A <LLD <LLD 0 Cs-137 4 180 <LLD N/A <LLD <LLD 0 Ra-226 4 1420 (1/2) CHIC 11.2 mi 1639 (2/2) 1639 (2/2) 0 (1420 -1420) WNW. (927 -2350) (927 -2350) Th-228 4 525 (2/2) CHIC 11.2 mi 850 (2/2) 850 (2/2) 0 (315 -734) WNW (330 -1370) (330 -1370) Th-232 4 591 (2/2) CHIC 11.2 mi 882 (2/2) 882 (2/2) 0 (444 -737) WNW (413 -1350) (413 -1350) | Cs-134 4 150 <LLD N/A <LLD <LLD 0 Cs-137 4 180 <LLD CHIC 11.2 mi 205 (2/2) 205 (2/2) 0 WNW (196 - 214) (196 - 214) | ||
Fish Gamma 4 , (pCilkg wet) K-40 4 1898 (4/4) SD 1.3 mi 1898 (4/4) N/A 0 (1040 -2910) NNW (1040 -2910) Mn-54 4 130 <LLD N/A <LLD N/A 0 Co-58 4 130 <LLD N/A <LLD N/A 0 Fe-59 4 260 <LLD N/A <LLD N/A 0 24 TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM | Ra-226 4 3260 (1/2) SD 1.3 mi 3260 (1/2) 2260 (1/2) 0 (3260 - 3260) NNW (3260 - 3260) (2260 - 2260) | ||
Th-228 4 1340 (2/2) CHIC 11.2 mi 1365 (2/2) 1365 (2/2) 0 (1110 - 1340) WNW (1270 - 1460) (1270 - 1460) | |||
Th-232 4 1415 (2/2) CHIC 11.2 mi 1460 (2/2) 1460 (2/2) 0 (1320 - 1415) WNW (1130 -1790) (1130 - 1790)' | |||
Shoreline Gamma 4 Sediment (pCilkg dry) K-40 4 6740 (2/2) HIR 0.6 mi 6740 (2/2) 2035 (2/2) 0 (5720 - 7760) N (5720 - 7760) (1640 - 2430) | |||
Cs-134 4 150 <LLD N/A <LLD <LLD 0 Cs-137 4 180 <LLD N/A <LLD <LLD 0 Ra-226 4 1420 (1/2) CHIC 11.2 mi 1639 (2/2) 1639 (2/2) 0 (1420 - 1420) WNW. (927 - 2350) (927 - 2350) | |||
Th-228 4 525 (2/2) CHIC 11.2 mi 850 (2/2) 850 (2/2) 0 (315 - 734) WNW (330 - 1370) (330 - 1370) | |||
Th-232 4 591 (2/2) CHIC 11.2 mi 882 (2/2) 882 (2/2) 0 (444 - 737) WNW (413 - 1350) (413 - 1350) | |||
Fish Gamma 4 , | |||
(pCilkg wet) ~ | |||
K-40 4 1898 (4/4) SD 1.3 mi 1898 (4/4) N/A 0 (1040 - 2910) NNW (1040 - 2910) | |||
Mn-54 4 130 <LLD N/A <LLD N/A 0 Co-58 4 130 <LLD N/A <LLD N/A 0 Fe-59 4 260 <LLD N/A <LLD N/A 0 24 | |||
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM | |||
==SUMMARY== | ==SUMMARY== | ||
Suny Power Station, Suny County, Virginia -2015 DocketNo.50-280-281 Page5of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled | |||
Oysters Gamma 6 (pCi/kg wet) K-40 6 811 (3/6) MP 4.9 mi 955 (1/2) N/A 0 (611 -955) ESE (955 -955) 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 <LLD N/A <LLD N/A 0 Zn-65 6 260 <LLD N/A <LLD N/A 0 Cs-134 6 130 <LLD N/A <LLD N/A 0 Cs-137 6 150 <LLD N/A <LLD N/A 0 | Suny Power Station, Suny County, Virginia -2015 DocketNo.50-280-281 Page5of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled (Units) Type | ||
Clams Gamma 6 (pCilkg wet) Mn-54 6 130 <LLD N/A <LLD <LLD 0 Co-58 6 130 <LLD N/A <LLD <LLD 0 Fe-59 6 260 <LLD N/A <LLD <LLD 0 25 TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM | !Total No. LLD Mean Range IDistance Name Direction I Mean Range Mean Range Reported Measurements Fish Gamma 4 (pCi/kg wet) | ||
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 Oysters Gamma 6 (pCi/kg wet) | |||
K-40 6 811 (3/6) MP 4.9 mi 955 (1/2) N/A 0 (611 - 955) ESE (955 - 955) | |||
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 <LLD N/A <LLD N/A 0 Zn-65 6 260 <LLD N/A <LLD N/A 0 Cs-134 6 130 <LLD N/A <LLD N/A 0 Cs-137 6 150 <LLD N/A <LLD N/A 0 Clams Gamma 6 (pCilkg wet) | |||
Mn-54 6 130 <LLD N/A <LLD <LLD 0 Co-58 6 130 <LLD N/A <LLD <LLD 0 Fe-59 6 260 <LLD N/A <LLD <LLD 0 25 | |||
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM | |||
==SUMMARY== | ==SUMMARY== | ||
Surry Power Station, Surry County, Vrrginia - 2015 Docket No. 50-280-281 Page 6 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled IT otal Mean I Distance I Mean Mean Reported (Units) Type No. LLD 1 Range Name Direction Range Range Measurements Clams Gamma 6 (pCi/kg v.et) | |||
Co-60 6 130 <LLD NIA <LLD <LLD 0 Zn-65 6 260 <LLD NIA <LLD <LLD 0 Cs-134 6 130 <LLD N/A <LLD <LLD 0 Cs-137 6 150 <LLD NIA <LLD <LLD 0 Crabs Gamma (pCilkg v.et) | |||
K-40 1140 (1/1) SD 1.3 mi 1140 (1/1) NIA 0 (1140 - 1140) NNW (1140 -1140) | |||
Mn-54 ' 130 <LLD NIA <LLD N/A 0 Co-58 130 <LLD NIA <LLD N/A 0 Fe-59 260 <LLD NIA <LLD NIA 0 Co-60 130 <LLD N/A <LLD NIA 0 Zn-65 260 <LLD NIA <LLD NIA 0 Cs-134 130 <LLD NIA <LLD NIA 0 Cs-137 150 <LLD NIA <LLD N/A 0 26 | |||
Results of 2015 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. | 3.2 Analytical Results of 2015 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, 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. | ||
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 | 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. | ||
: 3. Air Particulates, Weekly 1-131 4. Air Particulates, Quarterly Gamma Spectroscopy | Data are given according to sample type as indicated below. | ||
: 5. Cow Milk 6. Food Products 7. Well Water 8. River Water | : 1. Gamma Exposure Rate | ||
: 2. Air Particulates, Weekly Gross Beta Radioactivity | |||
: 3. Air Particulates, Weekly 1-131 | |||
: 4. Air Particulates, Quarterly Gamma Spectroscopy | |||
: 5. Cow Milk | |||
: 6. Food Products | |||
: 7. Well Water | |||
: 8. River Water | |||
: 9. Silt | |||
: 10. Shoreline Sediment | |||
: 11. Fish | |||
: 12. Oysters * | |||
: 13. Clams | |||
: 14. Crabs 27 | |||
* | |||
TABLE 3-2: GAMMA EXPOSURE RATE Surry Power Station, Surry County, Vrrginia - 2015 mR/Std Month+/- 2 Sigma Page 1of1 STATION 'v FIRST SECOND THIRD' FOURTH AVERAGE NUMBER QUARTER QUARTER QUARTER QUARTER +/-2SIGMA 02 6.3 +/- 0.8 6.7 +/- 0.4 6.9 +/- 0.8 7.1 +/- 0.6 6.8 +/- 0.7 03 6.2 +/- 0.6 6.4 +/- 0.7 5.5 +/- 1.7 6.4 +/- 0.5 6.1 +/- 0.9 04 5.6 +/- 0.5 5.9 +/- 0.9 . 6.0 +/- 0.5 6.1 +/- 1.1 5.9 +/- 0.4 05 6.2 +/- 1.2 5.8 +/- 1.0 6.7 +/- 0.6 6.4 +/- 0.5 6.3 +/- 0.8 06 5.8 +/- 0.4 6.2 +/- 1.0* 6.5 +/- 0.3 6.2 +/- 0.2 6.2 +/- 0.6 07 6.1 +/- 0.8 5.8 +/- 0.6 6.2 +/- 0.4 6.3 +/- 0.5 6.1 +/- 0.4 08 5.5 +/- 0.8 5.7 +/- 1.2 5.7 +/- 0.3 5.8 +/- 0.4 5.7 +/- 0.3 09 7.5 +/- 0.7 7.3 +/- 1.1 7.8 +/- 0.7 7.8 +/- 0.5 7.6 +/- 0.5 10 5.7 +/- 0.6 5.8 +/- 1.2 6.4 +/- 0.. 8 6.1 +/- 0.4 6.0 +/- 0.6 11 5.2 +/- 0.5 5.4 +/- 0.9 5.2 +/- 0.1 5.6 +/- 0.3 5.4 +/- 0.4 12 5.2 +/- 0.6 5.4 +/- 0.5 5.8 +/- 0.4 5.6 +/- 0.3 5.5 +/- 0.5 13 5.9 +/- 0.5 6.3 +/- 0.8 6.5 +/- 0.6 6.4 +/- 0.4 6.3 +/- 0.5 14 5.7 +/- 0.5 5.9 +/- 0.7 5.9 +/- 0.2 6.0 +/- 0.6 5.9 +/- 0.3 15 5.6 +/- 0.7 5.9 +/- 1.0 6.2 +/- 0.6 6.5 +/- 0.5 6.1 +/- 0.8 16 5.0 +/- 1.0 5.8 +/- 0.3 3.4 +/- 1.0 5.7 +/- 0.8 5.0 +/- 2.2 18 4.5 +/- 0.3 4.6 +/- 0.6 4.9 +/- 0.4 4.9 +/- 0.5 4.7 +/- 0.4 19 4.8 +/- 0.6 5.3 +/- 0.6 5.2 +/- 0.6 5.3 +/- 0.4 5.2 +/- 0.5 20 4.2 +/- 0.5 4.9 +/- 0.4 4.8 +/- 0.3 5.0 +/- 0.6 4.7 +/- 0.7 21 4.5 +/- 0.2 4.9 +/- 0.7 5.4 +/- 0.3 5.1 +/- 0.4 5.0 +/- 0.8 22 3.9 +/- 0.4 4.4 +/- 0.4 4.4 +/- 0.3 4.7 +/- 0.9 4.4 +/- 0.7 23 5.6 +/- 0.3 6.2 +/- 0.9 6.2 +/- 0.4 6.1 +/- 0.7 6.0 +/- 0.6 24 4.6 +/- 0.7 5.0 +/- 0.5 5.1 +/- 0.5 5.0 +/- 0.3 4.9 +/- 0.4 25 6.0 +/- 1.0 5.5 +/- 0.1 6.2 +/- 0.4 6.3 +/- 0.5 6.0 +/- 0.7 26 5.2 +/- 0.3 5.4 +/- 0.7 5.1 +/- 0.5 5.0 +/- 0.2 5.2 +/- 0.3 27 4.7 +/- 0.4 5.0 +/- 0.4 5.1 +/- 0.3 4.7 +/- 0.4 4.9 +/- b.4 28 4.4 +/- 0.3 4.7 +/- 0.4 5.0 +/- 0.5 4.6 +/- 0.3 4.7 +/- 0.5 29 4.1 +/- 0.4 4.4 +/- 0.6 4.6 +/- 0.5 4.5 +/- 0.3 4.4 +/- 0.4 30 4.4 +/- 0.4 4.8 +/- 0.5 4.8 +/- 0.6 4.9 +/- 0.4 4.7 +/- 0.4 31 4.0 +/- 0.8 4.3 +/- 0.4 4.3 +/- 0.6 4.1+/-0.3 4.2 +/- 0.3 32 4.5 +/- 0.4 5.7 +/- 1.3 5.2 +/- 0.4 5.3 +/- 0.3 5.2 +/- 1.0 33 4.5 +/- 0.5 5.7 +/- 1.6 4.8 +/- 0.7 4.8*+/- 0.5 5.0 +/- 1.0 i : 34 4.9 +/- 0.5 5.4 +/- 0.5 5.5 +/- 0.6 5.5 +/- 0.5 5.3 +/- 0.6 35 6.0 +/- 0.5 5.8 +/- 1.4 6.4 +/- 0.3 6.5 +/- 0.5 6.2 +/- 0.7 36 5.6+/-0.1 5.9 +/- 1.4 6.3 +/- 0.6 6.6 +/- 0.5 6.1 +/- 0.9 37 4.9 +/- 0.5 5.3 +/- 0.3 5.3 +/- 0.5 5.2 +/- 0.4 5.2 +/- 0.4 38 6.5 +/- 0.8 6.7 +/- 0.6 6.6 +/- 0.4 6.7 +/- 0.7 6.6 +/- 0.2 39-C 4.7 +/- 0.7 5.0 +/- 0.5' 5.1 +/- 0.2 5.2 +/- 0.6 5.0 +/- 0.4 40-C 5.1 +/- 0,3 5.5 +/- 0.3 5.4 +/- 0.4 5.4 +/- 0.3 5.4 +/- 0.3 41-C 6.9 +/- 1.3 7.3 +/- 0.6 7.3 +/- 0.4 7.5 +/- 0.7 7.3 +/- 0.5 42 5.1 +/- 0.5 5.4 +/- 0.2 5.7 +/- 0.3 5.2 +/- 0.5 5.4 +/- 0.5 43 4.4 +/- 0.3 4.7 +/- 0.5 . 4.9 +/- 0.6 4.9 +/- 0.3 4.7 +/- 0.5 28 | |||
TABLE 3-3: GROSS BETA CONCENTRATION IN FILTERED AIR Sutry Nuclear Power Station, Surry County, Virginia - 2015 1.0E-3 pCi/m3 +/- 2 Sigma Page 1 of2 COLLECTION SAMPLING LOCATIONS DATE SS HIR BC ALL CP BASF FE NN-C January 06 17.5 +/- 3.16 14.6 +/- 3.03 25.5 +/- 3.63 17.3 +/- 3.16 15.1 +/- 3.04 17.7 +/- 3.15 22.2 +/- 3.38 19.8 +/- 3.22 January 13 14.3 +/- 2.99 12.2 +/- 2.92 18.7 +/- 3.26 14.0"+/- 2.98 14.0 +/- 2.99 15.4 +/- 8.76 16.2 +/- 3.09 18.0 +/- 3.13 January 20 16.4 +/- 2.81 13.1 +/- 2.63 20.4 +/- 3.07 19.5 +/- 2.97 15.0 +/- 2.75 A 14.9 +/- 2.71 18.5 +/- 2.92 January 26 8. 70 +/- 2.93 9.19 +/- 2.97 6.70 +/- 2.86 9.72 +/- 2.98 8.29 +/- 2.92 12.8 +/- 3.14 11.4 +/- 3.07 10.3 +/- 3.03 February 03 8.86 +/- 2.30 8.49 +/- 2.29 12.7 +/- 2.55 10.1 +/- 2.37 6.12+/-2.16 11.8 +/- 2.46 9.87 +/- 2.33 11.0 +/- 2.42 February 09 12.9 +/- 3.09 14.6 +/- 3.21 23.3 +/- 3.70 17.2 +/- 3.32 16.4 +/- 3.32 16.1 +/- 3.23 18.8 +/- 3.40 18.4 +/- 3:36 February 16 14.6 +/- 2.96 12.2 +/- 2.88 18.8 +/- 3.22 14.7 +/- 2.95 14.4 +/- 2.96 14.3 +/- 2.93 16.3 +/- 3.04 16.6 +/- 3.04 February 23 21.9 +/- 3.23 20.2 +/- 3.18 23.2 +/- 3.34 28.9 +/- 3.54 22.9 +/- 3.29 24.4 +/- 3.32 26.0 +/- 3.40 28.4 +/- 3.56 March 02 20.0 +/- 3.07 15.1 +/- 28.6 21.5 +/- 3.18 19.3 +/- 3.02 15.2 +/- 2.85. 20.6 +/- 3.09 19.3 +/- 3.03 25.1 +/- 3.29 March 09 15.1 +/- 2.83 13.0 +/- 2.75 20.0 +/- 3.15 14.3 +/- 2.78 14.4 +/-. 2.80 15.2 +/- 2.83 16.4 +/- 2.89 15.7 +/- 2.85 March 16 8.78 +/- 2.56 7.86 +/- 2.53 19.1+/-3.19 11.8 +/- 2.71 8.89 +/- 2.55 11.0 +/- 2.66 12,0 +/- 2.72 12.5 +/- 2.77 March 24 10.8 +/- 2.37 10.7 +/- 2.40 18.3 +/- 2.84 11.1 +/- 2.38 9.91 +/- 2.32 9.16+/-2.26 12.9 +/- 2.48 14.0 +/- 2.59 March 31 10.0 +/- 2.87 9.47 +/- 2.81 20.1 +/- 3.41 14.3 +/- 2.99 10.2 +/- 2.82 12.9 +/- 2.92 11.9 +/- 2.87 16.6 +/- 3.15 Qtr. Avg. +/- 2 s.d. 13.8 +/- 8.70 12.4 +/- 6.74 19.1 +/- 9.67 15.6 +/- 10.3 13.1 +/- 8.78 15.1 +/- 8.49 16.0 +/- 9.31 17.3 +/- 10.3 April 07 10.5 +/- 2.73 12.3 +/- 2.88 21.1 +/- 3.40 12.6 +/- 2.82 10.6 +/- 2.78 11.0 +/- 2.72 12.7 +/- 2.83 15.6 +/- 2.99 April 14 11.0 +/- 2.60 13.0 +/- 2.75 21.8 +/- 3.27 14.0 +/- 2.74 2.89 +/- 2.05 13.5 +/- 2.75 14.1 +/- 2.79 17.4 +/- 2.97 April 21 .8.86 +/- 2.56 8.46 +/- 2.58 13.0 +/- 2.89 9.57 +/- 2.57 *10.3 +/- 2.65 8.20 +/- 2.51 9.33 +/- 2.59 10.4 +/- 2.65 April 28 8.25 +/- 2.39 7.46 +/- 2.38 *17.3 +/- 2.98 9.81 +/- 2.47 10.7 +/- 2.56 10.6 +/- 2.53 10.5 +/- 2.54 10.3 +/- 2.51 May 05 6.37 +/- 2.46 4.03 +/- 2.34 12.1 +/- 2.87 7.21 +/- 2.48 8.63 +/- 2.63 6.38 +/- 2.44 7.25 +/- 2.52 7.19 +/- 2.50 May 12 8.66 +/- 2.53 9.29 +/- 2.61 15.1 +/- 2.95 9.49 +/- 2.55 10.1 +/- 2.64 8.83 +/- 2.53 8.95 +/- 2.55 11.5 +/- 2.68 May 19 17A +/- 3.10 14.7 +/- 3.00 24.4 +/- 3.53 15.8 '+/- 3.00 17.9 +/- 3.13 15.9 +/- 3.05 17.7 +/- 3.11 19.0 +/- 3.16 May 26 18,7 +/- 2.94 10.7 +/- 2.76. 15 ..1 +/- 3.00 11:6 +/-* 2.77 16.0 +/- 3.01 14.1 +/- 2.89 14.2 +/- 2.89 18.9 +/- 3.13 June .02 13.0 +/- 2.79 11.2 +/- 2.72 12.5 +/- 2.80 16.0 +/- :2.95 12.4 +/- 2.75 12.7 +/- 2.75 10.8 +/- 2.62. 15.3 +/- 2.89 June 09 8.55 +/- 2.32 7.04 +/- 2.25 7.60 +/- 2.27 5.76 +/- 2.07 6.84 +/- 2.18 8.50 +/- 2.30 6.50+/-2.15 8.20 +/- 2.27 June 16 14.9 +/- 2.77 10.1 +/- 2.51 13.1 +/-2.69 12.4 +/- 2.60 12.4 +/- 2.60 13.{) +/- 2.67 14.7 +/- 2.73 14.9 +/- 2.14 June 23 12.3 +/- 2.52 8.92 +/- 2.32 14.5 +/- 2.68 16.3 +/- 2.75 12.7 +/- 2.54 12.3 +/- 2.52 14.5 +/- 2.66 15.2 +/- 2.70 June 30 5.46 +/- 2.43 3.51 +/- 2.34 9.29 +/- 2.72 7.15 +/- 2.54 9.06 +/- 2.67 9.32 +/- 2.66 5.63 +/- 2.43 7.85 +/- 2.54 Qtr. Avg. +/- 2 s.d. 11.1 +/- 8.11 9.29 +/- 6.55 15.1 +/- 9.78 11.4 +/- 7.09 11.5 +/- 7.59 11.1 .+/- 5.60 11.3 +/- 7.37 13.2 +/- 8.36 A: No power at sampling station April 14: OP <Minim um Detectable Activity 29 | |||
This pathway also shows measurable amounts of nuclear weapons testing fallout. Therefore, this media needs to be carefully evaluated when trying to determine if there is any station effect. Results of gamma spectroscopy indicate no detectable station related radioactivity in the milk samples. In years past, cesium-137 had been detected sporadically. | |||
The occurrences were attributed to residual global fallout from past atmospheric weapons testing. Cs-137 was not detected at a level above the LLD in 2015. 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. | TABLE 3-3: GROSS BETA CONCENTRATION IN FILTERED AIR Surry Nuclear Power Station, Surry County, Virginia - 2015 1.0E-3 pCi/ni3 +/- 2 Sigma Page 2 of2 COLLECTION SAMPLING LOCATIONS DATE SS HIR BC ALL CP BASF FE NN July 07 13.0+/-2.70 9.28 +/- 2.49 13.3 +/- 2.74 12.6 +/- 2.69 12.8 +/- 2.67 11.8+/-2.61 11.9+/-2.66 A July 14 12.7 +/- 2.57 9.59 +/- 2.41 15.9 +/- 2.79 14.5 +/- 2.68 13.4 +/- 2.62 14.4 +/- 2.69 11.0 +/- 2.48 16.2 +/- 2.82 July 21 12.5 .+/- 2.48 9 ..32 +/- 2.30 11.4 +/- 2.43 10.3 +/- 2.31 11.0 +/- 2.36 10.3 +/- 2.33 12.4 +/- 2.45 13.1 +/- 2.50 July 28 13.1+/-2.90 10.0 +/- 2.75 13.9 +/- 2.96 11.0+/-2.74 9.56 +/- 2.67 9.88 +/- 2. 71 12.2 +/- 2.83 13.2 +/- 2.86 August 04 17.7 +/- 3.06 15.0 +/- 2.96 20.3 +/- 3.22 20.9 +/- 3.21 23.4 +/- 3.36 20.8 +/- 3.23 19.9 +/- 3.16 22.2 +/- 3.28 August 11 9.03 +/- 2.54 8.93 +/- 2.57 11.1 +/- 2.69 9.69 +/- 2.56 13.4 +/- 2.79 11.5+/-2.65 10.4 +/- 2.61 10.3 +/- 2.59 August 18 14.4 +/- 2.84 10.8 +/- 2.67 15.2 +/- 2.93 12:5 +/- 2.14 14.5 +/- 2.88 .15.5 +/- 2.91 15.5 +/- 2.91 16.3 +/- 2.94 August 25 18.7 +/- 3.24 7.64 +/- 2.67 20.4 +/- 3.38 17.0 +/- 3.16 19.6 +/- 3.31 18.8 +/- 3.25 16.5 +/- 3.12 19.8 +/- 3.29 September01 16.0 +/- 2.93 17.9 +/- 3.04 18. 1 +/- 3.11 20.4 +/- 3.20 21.3 +/- 3.23 19.0 +/- 3.10 1.9.2 +/- 3.12 14.9 +/- 2.89 September 07 27.6 +/- 3.93 28.1 +/- 3.98 3~.5 +/- 4.23 32.2 +/- 4.15 30.8+/-4.10 27.4 +/- 3.91 30.6 +/- 4.06 25.5 +/- 3.83 September 15 16.3 +/- 2.71 15.2 +/- 2.65 15.8 +/- 2.74 15.9 +/- 2.68 16.7 +/- 2.75 14.4 +/- 2.61 16.1 +/- 2.70 16.5 +/- 2. 71 September 22 26.8 +/- 3.41 24.0 +/- 3.32 24.4 +/- 3.36 29.1 +/- 3.56 23.4 +/- 3.30 24.4 +/- 3.34 25.8 +/- 3.39 26.0 +/- 3.39 September 29 11.9+/-2.54 9.29 +/- 2.40 9.91 +/- 2.47 8.45 +/- 2.32 8.70 +/- 2.35 9.56 +/- 2.39 10.5 +/- 2.45 14.0 +/- 2.64 Qtr. Avg. +/- 2 s.d. 16.1 +/- 11.1 13.5 +/- 12.8 17.1 +/- 12.4 16.5 +/- 14.8 16.8 +/- 13.0 16.0 +/- 11.5 16.3 +/- 12.4 17.3 +/- 10.0 October 06 3.30 +/- 1.99 2.45 +/- 1.93 2.94 +/- 1.98 2.91 +/- 1.91 2.45 +/- 1.93 2.59 +/- 1.88 3.63 +/- 2.02 3.12+/-1.92 October 13 14,.8 +/- 2.86 14.1 +/- 2.86 15.7 +/- 2.98 15~8 +/- 2.93 16.5 +/- 2.99 14.1 +/- 2.85 14.7 +/- 2.88 14.8 +/- 2.88 October 20 16.5+/-3.18 15.7. +/- 3.16 21.7 +/- 3.49 18.9 +/- 3.29 17.4 +/- 3.26 18.4 +/- 3.27 16.2 +/- 3.15 17.6 +/- 3.24 October 27 19.3 +/- 3.42 20.0 +/- 3.45 21.4 +/- 3.56 21.1+/-3.47 21.4 +/- 3.52 16.7 +/- 3.25 17.8 +/- 3.31 15.9 +/- 3.22 November 03 15.3 +/- 2.87 16.7 +/- 2.94 16.1+/-2.94 16.9 +/- 2.93 15.9 +/- 2.90 16.1 +/- 2.88 15.5 +/- 2.85 17.1 +/- 2.93 November 10 15.6 +/- 2.98 15.7 +/- 2.98 17.5. +/- 3.10 18.4 +/- 3.09 17.4 +/- 3.10 13.4 +/- 2.84 15.5 +/- 2.96 16.4 +/- 2.99 November 17 18.2 +/- 3.19 13.0 +/- 2.94 16.7 +/- 3.17 20.5 +/- 3.30 15.6+/-3.11 17.4 +/- 3.14 18.8 +/- 3.21 17.3 +/- 3.13 November 24 14.1 +/-2.70 12.0 +/- 2.56 14.3 +/- 2.73 14.3 +/- 2.69 11.3 +/- 2.53 11.0 +/- 2.49 11.0 +/- 2.48 13.7 +/- 2.64 December 01 14.0 +/- 2.95 11.9+/-2.85 13.9 +/- 2.98 1.3.2 +/- 2.89 11.4 +/- 2.85 13.7 +/- 2.93 13.0 +/- 2.88 14.0 +/- 2.92 December 08 24.3 +/- 3.18 21.8 +/-3.07 21.9+/-3.11 25.9 +/- 3.28 25.2 +/- 3.27 22.6 +/- 3.12 25.5 +/- 3.25 23.9 +/- 3.17 December 15 29.6. +/- 3.50 29.9 +/- 3.54 36.3 +/- 3.84 30.6 +/- 3.57 30.3 +/- 3.57 29.7 +/- 3.53 30.1 +/- 3.54 32.8 +/- 3.62 December 22 11.8 +/- 2.54 12.6 +/- 2.59 . 13.7 +/- 2.67 13.0 +/- 2.61 11.7 +/- 2.57 11.5 +/- 2.52 12.8 +/- 2.59 13.0 +/- 2.60 December 29 5.38 +/- 2.09 7.62 +/- 2.26 7.19+/-2.24 6.32+/-2.16 7.69 +/- 2.28 5.89+/-2.12 7.17+/-2.20 7.69 +/- 2.23 Qtr. Avg. +/- 2 s.d. 15.6 +/- 13.8 15.9 +/- 11.6 16.9 +/- 15.9 16.8 +/- 14.7 16.8 +/- 12.7 15.9 +/- 12.1 15.5 +/- 13.8 15.9 +/- 14.2 Ann. Avg. +/- 2 s.d. 14.1 +/- 1.1.1 12.7 +/- 10.6 17.1 +/- 12.2 15.0 +/- 12.6 14.6 +/- 11.3 14.5 +/- 10.. 3 14.8 +/- 11.5 15.9 +/- 11.2 A: No power at sam piing station October.06: HIR, CP and BASF <Minimum Detectable Activity 30 | ||
Strontium-90 was detected in two of the composite samples at an average concentration of 1. 78 pCi/L. Sr-90 is not a component of the station radiological effluents and is a product of nuclear weapons testing fallout which has been well documented. | |||
: 4. 6 Food Products Three samples were collected and analyzed by gamma spectroscopy. | 1'.ABLE 3-4: IODINE-131 CONCENTRATION IN FILTERED AIR Suny Power Station, Suny County, Vrrginia- 2015 1.0E-3 pCi/m3 +/- 2 Sigma Page 1 of2 COLLECTION SAMPLING LOCATIONS DATE SS HIR .BC ALL CP BASF FE NN*C January 06 9.54 +/- 20.8 9.62 +/- 21.0 9.87 +/- 21.5 9.57 +/- 20.9 -16.6 +/- 17.2 -16.3 +/- 16.9 -16.3 +/- 16.9 -16.0 +/- 16.6 January 13 -2.0.0 +/- 41.6 -2.03 +/- 42.3 -2.05 +/- 42.6 -2.00 +/- 41.6 18.7 +/- 22.9 29'2 +/- 35.7 18.5 +/- 22.6 18.0 +/- 22.0 January 20 -1.33 +/- 20.3 -1.34 +/- 20.4 -1.35 +/- 20.7 -1.32 +/- 20.1 -4.63 +/- 19.6 A -4.54 +/- 19.1 -4.54 +/- 19.1 January 26 9~39 +/- 36.5 9.42 +/- 36.6" 9.59 +/- 37.3 9.31 +/- 36.1 -7.08 +/- 32,3 -6.95 +/- 31.7 -6.95 +/- 31.7 -7.00 +/- 31.9 February 03 40.8 +/- 33.6 41.0 +/- 33.!3 41,5 +/- 34.2 40.6 +/- 33.4 9.55 +/- 38.6 9.39 +/- 37.9 9.26 +/- 37.4 9.35 +/- 37.8 February 09 20.3 +/- 15.5 20.5+/-15.6 20.6 +/- 15.7 20.1 +/- 15.3 -1.28 +/- 16.0 -1.24 +/- 15.5 -1.25 +/- 15.6 -1.24 +/- 15.4 February 16 4.58 +/- 22.3 4.69 +/- 22.8. 4.66 +/- 22.6 4.55 +/- 22.1 -7.10 +/- 16.8 -7.03 +/- 16.6 -7.02 +/- 16.6 -6.92 +/- 16.4 February 23 9.26 +/- 18.2 9.47 +/- 18.6 9.45 +/- 18.6 9.18 +/- 18.1 -0.84 +/- 18.4 -0.82 +/- 18.1 -0.82 +/- 18.1 -0.84 +/- 18.3 March 02 4.04 +/- 21.1 4.13+/-21.6 4.10+/-21.4 4.00 +/- 20.9 2.68 +/- 18.5 2.62 +/- 18.1 2.62 +/- 18.1 2.59 +/- 17.9 March 09 * -12.7 +/- 20.6 -13.0 +/- 21.0 -13.1 +/- 21.1 -12.6 +/- 20.4 7.52 +/- 17.7 7.46 +/- 17.6 7.45 +/- 17.5 7.36 +/- 17.3 March 16 -17.4 +/- 31.t -17.7 +/- 31.5 -17.9 +/- 32.0 -17.2 +/- 30.6 8.69 +/- 25.2 8.60 +/- 24.9 8.58 +/- 24.9 8.61 +/- 25.0 March 24 -4:01 +/- 23.6 -4.09 +/- 24.0 -4.15 +/- 24.4 -3.98 +/- 23.4 -14.0 +/- 16.4 -13.9 +/- 16.2 -13.9 +/- 16.2 -14.1 +/- 16.5 March 31 5.12 +/- 12.6 5.17+/-12.8 5.24 +/- 12.9 4.97 +/- 12.3 6.91 +/- 16.5 6.76 +/- 16.1 6.75 +/- 16.1 6.78 +/- 16.2 April 07 8.85 +/- 33.8 9.05 +/- 34.6 9.19 +/- 35.1 8.68 +/- 33.2 -20.3 +/- 45.8 -23.3 +/- 44.5 -23.3 +/- 44.5 -23.1 +/- 44.2 April 14 -19.8 +/- 40.8 -20.1 +/- 41.5 . -20.4 +/- 42.1 -19.3 +/- 39.9 42.2 +/- 35.7 41.7 +/- 35.4 41.7 +/- 35.3 41.7 +/- 35.3 . | ||
The results of the analyses are presented in Table 3-7. As expected, naturally occurring potassium-40 was detected in all samples. The average concentration is consistent with that observed in previous years. No station related radioactivity was detected. | April 21 6.96 +/- 31.0 7.08 +/- 31.5 7.21 +/- 32.1 6.82 +/- 30.4 0.10 +/- 24.8 -38.4 +/- 46.6 -38.5 +/- 46.7 -38.3 +/- 46.4 April 28 -5.57 +/- 9.88 8.01 +/- 14.9 8.09 +/- 15.0 7.73 +/- 14.3 -10.8 +/- 19.1 -10.6 +/- 18.9 -10.7 +/- 19.0 -10.6 +/- 18.8 May 05 2.50 +/- 33.7 2.55 +/- 34.3 2.57 +/- 34.6 2.45 +/- 33.1 -8.84 +/- 31.4 -8.65 +/- 30.7 -8.72 +/- 30.9 -8.64 +/- 30.7 May 12 -15.6 +/- 17.2 -15.9 +/- 17.5 -16.0 +/- 17.6 -15.3 +/- 16.9 2.58 +/- 13.0 2.53 +/- 12.8 2.54 +/- 12.8 2.52 +/- 12.7 May 19 4.83 +/- 30.9 4.92 +/- 31.4 5.03 +/- 32.2 4.78 +/- 30.5 6.07 +/- 20.2 6.13 +/- 20.4 6.02 +/- 20.0 5.98 +/- 19.9 May 26 -6.20 +/- 14.6 -6.31 +/- 14.9 -2:45 +/- 5.77 -6.18 +/- 14.6 -4.99 +/- 14.8 -4.94 +/- 14.7 -4.93 +/- 14.7 -4.90 +/- 14.6 June 02 2.93 +/- 11.9 2.97 +/- 12.1 2:99 +/- 12.1 2.91 +/- 11.8 -9.64 +/- 17.1 -9.55 +/- 17.0 -9.45 +/- 16.8 -9.48 +/- 16.9 June 09 20.2 +/- 38.4 20.7 +/- 39.3 20.4 +/- 38.8 8.69 +/- 16.5 -2.85 +/- 36.1 -2.85 +/- 36.1 -2.83 +/- 35.8 -2.82 +/- 35.7 June 16 -15.9 +/- 24.3 -16.0 +/- 24.5 ~16.0 +/- 24.5. -15.6 +/- 23.9 18.6 +/- 26.4 18.6 +/- 26.3 18.5 +/- 26.2 18.4 +/- 26.1 June 23 3.87 +/- 11.5 3.91 +/- 11.6 3.91 +/- 11.6 1.49 +/- 4.41 0.71 +/- 14,7 0.71 +/- 14.7 0.71 +/- 14.7 0.71 +/- 14.7 June 30 -7.61 +/- 23.2 -7.72 +/- 23.5 -7.78 +/- 23.7 3.77 +/- 25.4 3.78 +/- 25.5 3.73 +/- 25.1 3.71 +/- 25.0 1.29 +/- 8.73 A: No power at sampling station | ||
: 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 at three indicator locations and analyzes for gamma radiation and for tritium. The results of these analyses are presented in Table 3-8. Consistent with past monitoring , no station related radioactivity was detected. | '31 | ||
No gamma emitting isotopes were detected during the pre-operational period. 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 spectroscopy. | |||
The 52 monthly samples are also composited and analyzed for tritium on a quarterly basis. Tritium was not detected and, with the exception of natural products, no other gamma emitters were detected. | TABLE 3-4: IODINE-131 CONCENTRATION IN FILTERED AIR Surry Power Station, Surry County, Virginia - 2015 1.0E-3 pCi/m3 +/- 2 Sigma Page2 of2 COLLECTION SAMPLING LOCATIONS DATE SS HIR BC ALL CP - BASF FE NN-C July 07 15.2 +/- 37.8 15.4 +/- 38.2 15.4 +/- 38.3 15.4 +/- 38.2 -22.7 +/- 38.5 -22.7 +/- 38.5 -23.3 +/- 39.2 A July 14 -3.97 +/- 14.6 -4.04 +/- 14.9 -4.03 +/- 14.9 -3.96 +/- 14..6 14.8 +/- 24.4 14.8 +/- 24.5 6.22 +/- 10.3 15.0 +/- 24.8 1 | ||
The naturally occurring radionuclides detected were potassium-40 and thorium-228. | July 21 10.4 +/- 22.0 4.13 +/- 8.69. . 10.6 +/- 22.3 10.3 +/- 21.6 -14.9 +/- 21.2 -15.0 +/- 21.3 -14.9 +/- 21.2 -14.8 +/- 21.1 July 28 -4.38 +/- 10.8 -4.43 +/- 10.9 -4.42 +/- 10.9 -4.30 +/- 10.6 13.5 +/- 17.7 13.6 +/- 17.8 . 13.5 +/- 17.7 13.3 +/- 17.5 August 04 -8.62 +/- 23.8 -8.76 +/- 24.2 -8.71 +/- 24.0 -8.54 +/- 23.6 10.1 +/- 18.6 10.1 +/- 18.6 9.93 +/- 18.3 9.89 +/- 18.3 August 11 -2.94 +/- 23.1 -2.99 +/- 23.5 -2.96 +/- 23.3 -2.18 +/- 30.0 -2.19 +/- 30.1 .-0.90 +/- 12.4 -2.17 +/- 29.8 -2.14 +/- 29.5 August 18 -0.72 +/- 24.3 -0.73 +/- 24.7 -0.73 +/- 24.8 -0.72 +/- 24.3 5.57 +/- 25.2 5.49 +/- 24.9 5.47 +/- 24.8 5.42 +/- 24.6 August 25 -27.8 +/- 20.9 -28.3 +/- 21.3 -28.5 +/- 21.4 -27.8 +/- 20.9 5.93 +/- 12.4 5.89 +/- 12.3 5.83 +/- 12.2 5.81 +/- 12.2 September 01 -3.91 +/- 17.1 -3.92 +/- 17.2 -4.03 +/- 17.7 -3.97 +/- 17.4 -19.1 +/-25.8 -18.9 +/- 25.6 -19.0 +/- 25.6 -18.9 +/- 25.5 September 07 11.8+/-28.0 11.9 +/- 28.2 12.1 +/- 28.8 11.8+/-28.0 -1.21 +/- 25.8 -1.19 +/- 25.4 -1.19 +/- 25.4 -1.19 +/- 25.4 September 15 14.5 +/- 18.7 . 14.4 +/- 18.7 14.8 +/- 19.2 14.4 +/- 18.6 -7.50 +/- 15.3 -7.42 +/- 15.1 -7.41 +/- 15.1 -7.36 +/- 15.0 September 22 6.24 +/- 15.8 6.35 +/- 16.1 6.41 +/- 16.2 6.33 +/- 16.0 7.77 +/- 17.6 7.72 +/- 17.5 7.68 +/- 17.4 7.59 +/- 17.2 September 29 -1.05 +/- 14.7 -1.06 +/- 14.8 -1.07 +/- 15.0 -1.04 +/- 14.6 -3.89 +/- 14.8 -3.85 +/- 14.6 . -3.83 +/- 14.6 -3.77 +/- 14.3 October 06 3.94 +/- 19.5 3.96 +/- 19.6 3.97 +/- 19.6 3.82 +/- 18.8 33.1 +/- 29.6 31.8 +/- 28.4 32.9 +/- 29.4 31.6 +/-'28.3 October 13 -24.2 +/- 22.7 -24.5 +/- 23.0 -24.8 +/- 23.3 -24.2 +/- 22.7 8.17 +/- 17.2 8.10 +/- .17.0 8.09 +/- 29.7 8.01 +/- 16.8 October 20 5.32 +/- 30.1 5.34 +/- 30.2 5.43 +/- 30.7 5.28 +/- 2.98 5.43 +/- 20.2 5.35 +/- 19.9 5.32 +/- 19.8 5.33 +/- 19.8 October 27 6.16 +/- 24.4 6.15 +/- 24.3 6.24 +/- 24.7 3.16+/-19.2 3.19 +/- 19.4 1.22 +/- 7.37 3.13 +/- 19.0 3.11 +/- 18.9 November 03 10.0 +/- 36.3 9.96 +/- 36.0 10.1 +/- 36.5 9.83 +/- 35.6 2.85 +/- 34.1 2.80 +/- 33.5 2.80 +/- 33.5 2.79 +/- 33.3 November 10 0.01 +/- 26.9 0.01 +/- 26.9 0.01 +/- 27.2 5.85 +/- 16.2 14.3 +/- 39.5 14.0 +/- 38.6 13.9 +/- 38.5 13.8 +/- 38.1 November 17 -4.95 +/- 16.4 -4.99 +/- 16.5 -5.06 +/- 16.7 -4.96 +/- 16.4 -20.5 +/- 32.2 -19.8 +/- 31.2 -19.9 +/- 31.3 -19.7+/-31.1 November24 -29.4 +/- 29.5 -29.1 +/- 29.2 -29. 7 +/-' 29.8 5.40 +/- 18.9 5.45 +/- 19.0 5.36 +/- 18.7 2.07 +/- 7.22 5.32 +/- 18.6 December01 -5.24 +/- 33~7 -5.26 +/- 33.9 -5.29 +/- 34.1 -1.09 +/- 31.6 -1.12 +/- 32.4 -1.09 +/- 31.5 -1.08 +/- 31.4 -0.45 +/- 13.0 . | ||
No station related radioactivity was detected. | December 08 -7.71 +/- 24.8 -7.78 +/- 25.0 -7.89 +/- 25.3 -7.81 +/- 25.1 -7.14 +/- 38.9 -7.07 +/- 38.6 -6.99 +/- 38.1 _-6.96 +/- 38.0 December 15 12.3 +/- 39.4 12.4 +/- 39.8 12.5 +/- 40:1 12.4 +/- 39.7 -16.9 +/- 30.0 ~16.7 +/- 29.7 -16.7 +/- 29.6 -16.3 +/- 28.9 December22 -8.14 +/- 27.1 -8.14 +/-' 27.1 -8.19 +/- 27.3 27.4 +/- 25.1 27.9 +/- 25.6 27.2 +/- 25.0 14.9 +/- 13.7 26.9 +/- 24.7 December29 9.17 +/- 33.7 9.24 +/- 33.9 9.28 +/- 34.1 14.2 +/- 23.0 14.4 +/- 23.2 14.1 +/- 22.7 5.42 +/- 8.75 13.8 +/- 22.3 A: No power at sampling station - | ||
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 two locations, one upstream and one downstream of the station. The results of the gamma spectroscopy analyses are presented in Table 3-10. Naturally occurring potassium-40, radium-226, thorium-228 and thorium-232 were detected. | 32 | ||
Historically, cobalt-60 has been detected in samples obtained from the indicator location (SD). Cobalt-60 has not been detected since 2003. Trend graphs of cobalt-60 and cesium-137 in silt appear in Figures 4-4 and 4-5. The concentrations of cesium-137 detected indicate a continual decreasing trend as seen for over two decades. The detection of cesium-137 in both control and indicator samples and decreasing levels indicate that the presence of cesium-137 is the result of accumulation and runoff into the river of residual weapons testing fallout. Its global presence has been well documented. | |||
During the operational period, cesium-137 was detected in silt samples with an average concentration as indicated in Figure 4-5. At the control location , cesium-137 was detected with an average concentration of 205 pCi/kg. In 2015 , for the first time, cesium-137 was not detected in the indicator location. | TABLE 3-5: GAMMA EMITTER CONCENTRATION IN FILTERED AIR Surry Power Station, Surry County, Virginia - 2015 1.0E-3 pCi/m3 +/- 2 Sigma Page 1 ofl SAMPLING FIRST SECOND THIRD FOURTH AVERAGE LOCATIONS NUCLIDE QUARTER QUARTER QUARTER QUARTER +/- 2 SIGMA SS Cs-134 0.19 +/- 0.87 0.27 +/- 0.81 -0.23 +/- 0.84 0.53 +/- 0. 74 Cs-137 -1.20 +/- 0.73 0.65 +/- 0.86 -0.73 +/- 0.89 0.17 +/- 0.81 Be-7 115 +/- 32.8 126 +/- 30.2 141 +/- 46.2 104 +/- 24.2 122 +/- 31.6 HIR Cs-134 0.22 +/- 0.98 0.54 +/- 0. 77 0.49 +/- 0.68 1.62 +/- 0.94 Cs-137 0.39 +/- 0.90 -0.41 +/- 0.67 0.26 +/- 0.68 -0.23 +/- 0.90 Be-7 94.1 +/- 38.9 111 +/- 27.8 143 +/- 33.6 118 +/- 22.7 117+/-40.6 K-40 22.8 +/- 13.3 22.8 +/- 13.3 BC Cs-134 0.83 +/- 0.97 0.63 +/- 1.26 0.08 +/- 0.85 1.25 +/- 1.35 Cs-137 0.74 +/- 0.83 0.00 +/- 1.39 0.72 +/- 0.83 0.04 +/- 1.16 Be-7 124 +/- 33.7 153 +/- 44.1 108 +/- 35.8 120 +/- 42.1 126 +/- 38.2 ALL Cs-134 0.05 +/- 0.92 -0.91 +/- 0.75 0.27 +/- 0.92 -0.94 +/- 0.91 Cs-137 0.13 +/- 0.71 -0.01 +/- 0.51 -0.36 +/- 0.64 -0.35 +/- 0.71 Be-7 | ||
The cesium-137 concentrations in silt continue to decline and fluctuate around the REMP lower limit of detection (LLD) concentration, which could account for the non-detect. | * 128 +/- 48.8 186 +/- 36.6 187 +/- 40.5 159 +/- 28.6 165 +/- 55.7 K-40 14.3 +/- 11.9 14.3 +/- 11.9 CP Cs-134 0.25 +/- 0~95 0.90 +/- '1.08 0.75 +/- 0.81 -0.26 +/- 0.85 Cs-137 0.20 +/- 0.77 -0.05 +/- 1.10 -0.18 +/- 0.78 0.29 +/- 0.77 Be-7 108 +/- 30.1 115 +/- 39.4 122 +/- 30.3 103 +/- 25.0 112 +/- 16.6 | ||
! I K-40 14.3 +/- 14.0 24.6 +/- 12.2 19.5 +/- 14.6 BASF Cs-134 0.10 +/- 0.78 0.36 +/- 0.69 -0.63 +/- 1.24 0.27 +/- 1.31 Cs-137 -0.10 +/- 0.71 -0.33 +/- 0.56 1.32 +/- 1.32 -0.11 +/- 0.98 Be-7 133 +/- 33:5 98.0 +/- 25.6 128 +/- 54.7 105 +/- 33.0 116 +/- 34.2 K-40 9.99 +/- 7.37 9.99 +/- 7.37 FE Cs-134 -0.17 +/- 0.90 0.99 +/- 0.81 0.49 +/- 0.85 0.60 +/- 0. 76 Cs-137 -0.67 +/- 0.80 '0.10 +/- 0.75 0.70 +/- 0.72 0.43 +/- 0.69 Be-7 155 +/- 33.3 168 +/- 32.1 132 +/- 29.6 141 +/- 24.2 149 +/- 31.6 NN-C Cs-134 1.31 +/- 1.10 0.66 +/- 0.84 0.42 +/- 0.80 -0.13 +/- 0.72 Cs-137 -0.29 +/- 0.86 -0.13 +/- 0.77 -0.43 +/- 0.73 0.39 +/- 0.57 Be-7 136 +/- 46.9 136 +/- 38.5 151 +/- 34.1 140 +/- 26.9 141 +/- 14.2 33 | |||
TABLE 3-6: GAMMA EMITTER AND STRONTIUM CONCENTRATIONS IN MILK* | |||
Suny Po,wer Station, Suny County, Vrrginia - 2015 pCi/Liter +/- 2 Sigma Page I of3 COLONIAL NUCLIDE EPPS PARKWAY WILLIAMS-C JANUARY Cs-134 -8.07 +/- 4.24 4.10 +/- 5.27 -1.57 +/- 6.15 Cs-137 -0.57 +/- 3.46 4.08 +/- 5.41 1.98 +/- 5.80 Ba-140 -3.80 +/- 17.4 -20.2 +/- 28.8 10.2 +/- 23.9 La-140 -0.27 +/- 3.94 7.35 +/- 6.24 -5.86 +/- 9.20 1-131 -0.47 +/- 0.43 -0.24 +/-' 0.24 0.22 +/- 0.35 K-40 1330 +/- 140 1100 +/- 195 1200 +/- 184 FEBRUARY Cs-134 -2.82 +/- 2.68 0.09 +/- 4.03 0.44 +/- 4.65 Cs-137 -0.48 +/- 2.50 0.13 +/- 3.85 1.29 +/- 4.28 Ba-140 -6.70 +/- 15.0 -9.14 +/- 21:1 1.90 +/- 24.0 La-140 0.77 +/- 3.99 -1.23 +/- 6.89 -2.29 +/- 6.16 1-131 -0.74 +/- 0.33 -0.32 +/- 0.31 -0.16 +/- 0.31 K-40 1330 +/- 117 1330 +/- 170 1200 +/- 152 MARCH Cs-134 -1.16 +/- 3.66 2.02 +/- 3.05 -1.78 +/- 4.93 Cs-137 -1.04 +/- 3.68 -2.07 +/- 3.42 0.08 +/- 5.18 Ba-140 1.25 +/- 18.1 16.7 +/- 16.6 -30.3 +/- 25.9 La-140 1.24 +/- 3.93 -3.81 +/- 4.73 -2.60 +/- 6.57 1-131 -0.05 +/- 0.31 -0.18 +/- 0.31 '-0.03 +/- 0.23 K-40 1240 +/- 114 1370 +/- 136 . 1410 +/- 186 Sr-89 0.11 +/- 2.84 Sr-90 -0.31 +/- 0.31 APRIL Cs-134 -5.45 +/- 3.83 0.34 +/- 4.01 -0.29 +/- 5.09 Cs'-137 1.17. +/- 3.86 2.67 +/- 4.92 . 2.52 +/- 5.20 Ba-140 -2.34. +/- 23.6 -24.6 +/- 24.4 11.1 +/- 25.8 La-140 -0.15 +/- 7.74 -8.58 +/-. 6.96 0.91 +/- 7.11 1-131 0.10 +/- 0.38 -0.18 +/- 0.34 -0.16 +/- 0.25 K-40 1390 +/- 167 1250 +/- 179 1160 +/- 179 34 | |||
TABLE 3:..6: GAMMA EMITTER AND STRONTIUM CONCENTRATIONS IN MILK Surry Power Station, Surry County, Vrrginia - 2015 pCi/Llter +/- 2 Sigma Page2 of3 COLONIAL NUCLIDE EPPS PARKWAY WILLIAMS*C MAY Cs-134 -7.61 +/- 4.78 -4.93 +/- 3.93 -3.38 +/- 4.75 Cs-137 -3.62 +/- 6.22* 2.06 +/- 3.72 0.90 +/- 4.75 Ba-140 -9.91 +/- 30.4 -19.5 +/- 22.4 -1.92 +/- 22.4 La-140 -3.66 +/- 8.61 0.41 +/- 5.61 -3.26 +/- 7.73 1-131 -0.32 +/- 0.41 -0.25 +/- 0.44 -0.19 +/- 0.51 K-40 1280 +/- 188 1340 +/- 140 1320 +/- 171 JUNE Cs-134 -4.33 +/- 3.34 -2.75 +/- 3.21 -7.88 +/- 4.65 Cs-137 -1.21 +/- 3.51 0.80 +/- 2.64 1.12 +/- 4.46 Ba-140 15.4 +/- 18.6 6.36 +/- 12.3 -2.25 +/- 21.0 La-140 0.23. +/- 4.69 0.69 +/- 3.85 -0.70 +/- 6.35 1-131 -0.38 +/- 0.34 -0.06 +/- 0.41 -0.02 +/- 0.25 K-40 1360 +/- 121 1130 +/- 96.7 1430 +/- 151 Sr-89 3.67 +/- 3.08 Sr-90 1.76 +/- 0.46 JULY Cs-134 -2.73 +/- 2.67 0.28 +/- 3.91 1.13 +/- 4.37 Cs-137 2.50 +/- 3.20 -1.29 +/- 4.70 2.09 +/- 4.09 Ba-140 2.81 +/- 17.1 18.6 +/- 22.1 -0.56 +/- 20.0 La-140 0.87 +/- 4.30 4.49 +/- 5.23 -3.31 +/- 5.58 1-131 -0.32 +/- 0.40 -0.44 +/- 0.48 -0.09 +/- 0.28 K-40 1460 +/- 151 1300 +/- 179 1300 +/- 140 AUGUST Cs-134 -5.02 +/- 4.84 -1.14 +/- 5.91 -2.53 +/- 4.18 Cs-137 -2.99 +/- 5.19 -1.62 +/- 6.26 3.34 +/- 4.84 Ba-140 16.7 +/- 20.7 -7.70 +/- 28.8 9.12 +/- 18.8 La-140 0.53 +/- 6.59 4.77 +/- 7.28 -0.24 +/- 4.55 1-131 -0.07 +/- 0.43 -0.42 +/- 0.45 -0.30 +/- 0.50 K-40 1300 +/- 185 1430 +/- 209 1420 +/- 181 35 | |||
TABLE 3-6: GAMMA EMITTER AND STRONTIUM CONCENTRATIONS IN MILK Suny Power Station, Suny County, Vrrginia - 2015 pCi/Liter +/- 2 Sigma Page3 of3 COLONIAL NUCLIDE EPPS PARKWAY WILLIAMS-C SEPTEMBER Cs-134 -3.46 +/- 6.13 -2.98 +/- 5.71 -1.00 +/- 5.67 | |||
, Cs-137 -4.92 +/- 5.91 -2.29 +/- 6.02 4.22 +/- 6.73 | |||
, Ba-140 5.71 +/- 24.0 -15.0 +/- 19.9 -1.70 +/- 19.2 La-140 3.37 +/- 6.79 4.22 +/- 5.86 -2.12 +/- 9.22 1-131 -0.13 +/- 0.26 -0.54 +/- 0.26 -0.10 +/- 0.16 K-40 1570 +/- 233 1340 +/- 211 1130 +/- 227 Sr-89 4.17 +/- 2.89 Sr-90 1.80 +/- 0.49 OCTOBER Cs-134 4.04 +/- 4.03 -2.06 +/- 3.13 -5.90 +/- 3.58 Cs-137 2.67 +/- 3.69 1.08 +/- 3.68 -3.12 +/- 3.83 Ba-140 -3.90 +/- 14.5 10.7 +/- 12.0 -6.30 +/- 13.8 La-140 2.48 +/- 3.30 -1.31 +/- 3.49 0.02 +/- 3.22 1-131 -0.30 +/- 0.31 -0.19 +/- 0.34 . -0.51 +/- 0.36 K-40 1280 +/- 132 1070 +/- 144 1340 +/- 163 NOVEMBER Cs-134 3.18 +/- 5.54 -2.30 +/- 4.80 -6.05 +/- 6.11 Cs-137 2.35 +/- 6.16 1.68 +/- 4.52 2.98 +/- 6.74 Ba-140 -9.92 +/- 24.8 12.9 +/- 22.3 10.4 +/- 27.2 La-140 1.27 +/- 6.28 1.46 +/- 6.48 -1.84 +/- 9.76 1-131 -0.43 +/- 0.42 -0.10 +/- 0.41 -0.09 +/- 0.33 K-40 1390 +/- 215 1320 +/- 167 1360 +/- 231 DECEMBER Cs-134 0.18 +/- 5.19 1.20 +/- 5.12 1.95 +/- 5.36 Cs-137 0.08 +/- 5.05 0.74 +/- 5.62 1.99 +/- 5.77 Ba-140 4.15 +/- 23.5 -6.34 +/- 26.0 -2.40 +/- 23.5 La-140 1.25 +/- 6.64 2.03 +/- 8.25 2.36 +/- 5.48 1-131 -0.09 :!;: 0.36 -0.19 +/- 0.48 -0.26 +/- 0.52 I K-40 1290 +/- 186 1540 +/- 213 1280 +/- 201 | |||
: I Sr-89 1.28 +/- 2.23 Sr-90 -0.07 +/- 0.30 36 | |||
TABLE 3-7: GAAN4 EMIITER CONCENTRATION IN FOOD PRODUCTS Suny Power Station, Suny County, Virginia - 2015 pCi/kg (wet)+/- 2 Sigma Page 1 ofl SAMPLING COLLECTION SAMPLE LOCATIONS DATE TYPE ISOTOPE Cs-134 Cs-137 1-131 K-40 BROCK 11/24/2015 Corn 8.89 +/- 12.9 4.27 +/- 13.0 6.51 +/- 21.3 3830 +/- 483 FARM Cs-134 Cs-137 1-131 K-40 11/24/2015 Peanuts -2.96 +/- 14.7 5.71 +/- 15.7 3.20 +/- 28.1 5640 +/- 688 Cs-134 Cs-137 1-131 K-40 SLADE 11/24/2015 Soybeans -0.58 +/- 15.0 8.44 +/- 17.0 9.86 +/- 32.2 17800 +/- 880 FARM 37 | |||
TABLE 3-8: GAMMA EMITTER AND TRITIUM CONCENTRATIONS IN WELL WATER Suny Power Station, Suny County, Virginia - 2015 pCi/liter +/- 2 Sigma Page 1 of2 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 Zn-65 SS 3/2/2015 -1.17 +/- 2.53 -0.06 +/- 2.48 -0.51 +/- 4.89 -0.84 +/- 2.12 -1.47 +/- 5.21 6/3/2015 -0.50 +/- 1.81 -0.87 +/- 2.05 1.63 +/- 4.45 -1.20 +/- 1.83 -3.49 +/- 4.50 9/7/2015 0.00 +/- 4.33 . -1.61 +/- 3.97 -4.07 +/- 7.75 4.62 +/- 3.63 -2.65 +/- 8.62 12/1/2015 -0.99 +/- 2.88 -0.34 +/- 2.78 -0.87 +/- .5.54 0.57 +/- 3.41 1.93 +/- 5.79 Nb-95 Zr-95 1-131 | |||
* Cs-134 Cs-137 3/2/2015 2.60 +/- 2.44 -1.15 +/- 3.93 -0.37 +/- 0.24 1.28 +/- 3.27 -1.21 +/- 2.75 6/3/2015 *-1.46 +/- 2.06 -0.03 +/- 3.92 -0.16 +/- 0.22 -0.42 +/- 2.17 0.94 +/- 2.01 9/7/2015 2.23 +/- 4.36. -1.09 +/- 7.16 -0.12 +/- 0.35 -7.08 +/- 4.76 -1.37 +/- 4.37 12/1/2015 0.99 +/- 2.81 5.47 +/- 4. 77 3.21 +/- 5. 70 -1.85 +/- 3.46 -1.10 +/- 2.86 Ba-140 La-140 H-3 3/2/2015 2.96 +/- 12.2 2.04 +/-' 3.92 711 +/- 1200 6/3/2015 -4.24 +/- 11.7 2.41 +/- 4.06 -30.8 +/- 772 9/7/2015 -5.46 +/- 17.6 0.17 +/- 5.28 38.0 +/- 568 12/1/2015 0.97 +/- 14.8 -5.60 +/- 5.16 38.2 +/- 1200 Mn-54 Co-58 Fe-59 Co-60 Zn-65 HIR 3/2/2015 0.00 +/- 2.67 0.20 +/- 3.33 0.93 +/- 5:92 2.02 +/- 2.77 -5.93 +/- 6.65 6/3/2015 -1.01 +/- 1.94 -0.39 +/- 2.19 -0.76 +/- 4.69 0.25 +/- 1.92 -4 ..54 +/- 4.91 9/7/2015 -2.47 +/- 3.42 0.87 +/- 3.53 0.45 +/- 8.45 -0.57 +/- 4.43 -0.98 +/- 8.40 12/1/2015 -1.80 +/- 2.73 -0.12 +/- 2.67 1.14 +/- 5.19 -0.28 +/- 2.95 3.39 +/- 5.91 Nb-95 Zr-95 1-131 Cs-134 Cs-137 3/2/2015 -2.78 +/- 3.35 -2.86 +/- 5.61 -0.29 +/- 0.24 -5.54 +/- 3.90 2.02 +/- 3.55 6/3/2015 1.01 +/- 2.27 0.03 *+/- 4.36 -0.25 +/- 0.29 -6.00 +/- 2.25 -0.54 +/- 2.08 9/7/2015 . -0.56 +/- 4.20 3.64 +/- 6.12 -0.06 +/- 0.10 1.77 +/- 3.72 3.53 +/- 4.59 12/1/2015 1.92 :t 3.12 0.00 +/- 4.56 2.61 +/- 5.44 0.13 +/- 2.69 1.51 +/- 2.55 Ba-140 La-140 H-3 3/2/2015 16.7 +/- 16.8 -0.15 +/- 4.13 -177 +/- 995 6/3/2015 -10.0 +/- 13.7 0.01 +/- 4.55 272 +/- 805 9/7/2015 -1.31 +/- 15.7 1.64 +/- 3.32 203 +/- 582 12/1/2015 1.49 +/- 13.8 -1.89 +/- 3.98 351 +/- 817 38 | |||
TABLE 3-8: GAMMA EMITTER AND TRITIUM CONCENTRATIONS IN WELL WATER Surry Power Station, Surry County, Vrrginia -2015 pCi/liter+/- 2 Sigma Page2 of2 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 Zn-65 cs 3/2/2015 -2.15 +/- 3.19 -0.31 +/- 3.72 -3.56 +/- 7.10 -0.34 +/- 3.47 -8.11 +/- 8.12 6/3/2015 -0.60 +/- 0.94 0.08 +/- 0.99 0.69 +/- 1.94 -0.13 +/- 0.96 0.18 +/- 2.08 9/7/2015 -2.79 +/- 3.98 2.53 +/- 3.79 0.71 +/- 8.30 0.06 +/- 3.77 8.28 +/- 9.65 12/1/2015 -0.43 +/- 2.91 -0.37 +/- 2.98 2.23 +/- 6.66 3.26 +/- 3.48 -2.02 +/- 7.53 Nb-95 Zr-95 1-131 Cs-134 Cs-137 3/2/2015 -2.05 +/- 3.07 -2.65 +/- 5.75 -0.20 +/- 0.24 1.70 +/- 3.26 0.30 +/- 3.53 6/3/2015 0.39 +/- 0.95 0.18 +/- 1. 71 -0.08 +/- 0.22 -0.06 +/- 0.98 0.02 +/- 0.96 9/7/2015 2.69 +/- 3.95 2.41 +/- 6.84 -0.01 +/- 0.11 -5.14 +/- 4.84 2.34 +/- 3.87 12/1/2015 -0.30 +/- 3.13 1.22 +/- 5.91 -0.69 +/- 6.24 -2.18 +/- 3.54 0.47 +/- 3.56 Ba-140 La-140 H-3 K-40 3/2/2015 6.39 +/- 16.4 3.03 +/- 6.51 710 +/- 1200 6/3/2015 3.23 +/- 5.48 -1.55 +/- 1.85 -115 +/- 745 9/7/2015 3.91 +/- 16.4 -2.36 +/- 4.49 12.7 +/- 567 88.5 +/- 71.8 12/1/2015 5.44 +/- 15.0 -1.61 +/- 6.00 717 +/- 850 39 | |||
TABLE 3-9: GAMM4 EMITTER AND TRITIUM CONCENTRATIONS IN RIVER WATER Suny Power Station, Suny County, Vrrginia - 2015 pCi/liter+/-2 Sigma Page I of2 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 Zn-65 SD. 1/13/2015 -0.70 +/- 2.33 -1.76 +/- 2.46 1.77 +/- 4.80 -0.13 +/- 2.42 -0.18 +/- 4.65 2/16/2015 0.21 +/- 1.68 -0.79 +/- 1.33 1.54 +/- 4.49 -0.57 +/- 1.48 1.98 +/- 3.29 3/9/2015 -0.79 +/- 1.95 0.28 +/- 1.83 -0.74 +/- 4.08 0.13 +/- 1.47 -0.53 +/- 3.95 4/21/2015 -1.30 +/- 2.95 -1.51 +/- 3.06 2.49 +/- 6.21 0.65 +/- 3.07 -12.2 +/- 7.03 5/25/2015 0.20 +/- 1.43 0.66 +/- 1.46 -0.28 +/- 3.35 1.47 +/- 1.52 -1.62 +/- 3.08 6/9/2015 2.90 +/- 3.31 -1.67 +/- 2.95 2.37 +/- 5.60 -0.71 +/- 3.41 -0.98 +/- 5.81 7/14/2015 -0.08 +/- 4.11 0.11 +/- 3.95 0.94 +/- 7.03 0.35 +/- 3.83 -0.22 +/- 8.39 8/11/2015 -0.65 +/- 3.11 -0.75 +/- 3.47 -2.67 +/- 6.10 -0.44 +/- 2.46 0.63 +/- 7.14 9/7/2015 1.33 +/- 3.74 -2.06 +/- 3.71 -6.35 +/- 9.63 -3.22 +/- 5.00 -1.69 +/- 6.82 10/13/2015 -1.24 +/- 2.35 0.73 +/- 2.12 . 0.21 +/- 4.19 -0.30 +/- 2.08 -8.02 +/- 5.12 11/6/2015 1.77 +/- 3:38 1.98 +/- 3.68 2.01 +/- 6.76 -2.20 +/- 3.95 -1.74 +/- 7.76 12/1/2015 -0.60 +/- 3.11 0.85 +/- 3.03 2.09 +/- 5.46 2.07 +/- 3.65 -2.26 +/- 6.79 Nb-95 Zr-95 1-131 Cs-134 Cs-137 1/13/2015 0.26 +/- 2.62 -5.37 +/- 4.40 2.09 +/- 5.32 -1.32 +/- 2.75 0.31 +/- 2.54 2/16/2015 0.14 +/- 1.85 . -1.06 +/- 2.79 -2.91 +/- 4.27 -0.60 +/- 1.52 0.76 +/- 1.75 3/9/2015 1.74 +/- 2.41 -2.27 +/- 3.69 -4.74 +/- 4.67 0.26 +/- 2.39 0.06 +/- 2.11 4/21/2015 2.83 +/- 3.05 -7.51 +/- 5.54 . -2.13 +/- 6.28 -1.47 +/- 5.53 -1.16 +/- 3.43 5/25/2015 -0.01 +/- 1.80 -0.79 +/- 2.80 _0.78 +/- 3.63 0.91 +/- 1.46 --0.36 +/- 1.61 6/9/2015 -0.11 +/- 3.21 -6.62 +/- 5.66 -4.07 +/- 5.95 -3.12 +/- 3.24 1.70 +/- 3.50 7/14/2015 1.95 +/- 3.62 2.51 +/- 5.97 4.00 +/- 4.95 -8.32 +/- 4.20 1.89 +/- 3.87 8/11/2015 -0.03 +/- 3.13 -1.79 +/- 5.31 -0.74 +/- 5.99 -1.15 +/- 3.67 0.03 +/- 3.64 9/7/2015 4.33 +/- 4.79 -3.06 +/- 8.54 0.04 +/- 5.80 -0.97 +/-,3.82 -2.30 +/- 5.52 10/13/2015 1.21 +/- 2.17 -1.14 +/- 3.96 -0.75 +/- 2.99 1.25 +/- 2.28 -0.77 +/- 2.75 11/6/2015 1.33 +/- 3.39 2.50 +/- 6.07 -0.87 +/- 4.78 1.25 +/- 3.86 -5.05 +/- 3.75 12/1/2015 -1.27 +/- 3.11 0.89 +/- 5.30 -3.28 +/- 5.30 -1.16 +/- 3.34 -0.17 +/- 3.32 Ba-140 La-140 H-3 K-40 I | |||
1/13/2015 2.58 +/- 12.4 -1.84 +/- 3.61 I | |||
2/16/2015 -3.76 +/- 9.75 -2.29 +/- 2.81 3/9/2015 15.4 +/- 11.4 1.48 +/- 3.47 -89.9 +/- 483 4/21/2015 -4.08 +/- 12.4 -2.05 +/- 4.31 5/25/2015 0.77 +/- 8.62 0.23 +/- 2.78 45.4 +/- 39.8 6/9/2015 -2.77 +/- 16.2 -0.76 +/- 4.51 893 +/- 1200 98.1 +/- 48.9 7/14/2015 6.59 +/- 13.4 0.15 +/- 4.60 98.1 +/- 74.2 8/11/2015 -11. 7 +/- 15.1 -1.54 +/- 5.11 122 +/- 69.0 9/7/2015 -0.46 +/- 19.4 2.02 +/- 6.80 -155 +/- 579 177 +/- 142 10/13/2015 -3.42 +/- 9.49 -1.23 +/- 2.90 84.5 +/- 49.2 11/6/2015 2.62 +/- 14.4 -1.98 +/- 4.98 100 +/- 66.0 12/1/2015 1.93 +/- 15.1 0.98 +/- 4.11 404 +/- 575 87.3 +/- 49.6 40 | |||
TABLE 3-9: GAMk!A EMITTER AND TRITIUM CONCENTRATIONS IN RIVER WATER Suny Power Station, Suny County, Vuginia - 2015 pCi/liter+/-2 Sigma Page2 of2 SAMPLING COLLECTION LOCATIONS DATE ISOTOPES Mn-54 Co-58 Fe-59 Co-60 Zn-65 SW-C 1/13/2015 -0.63 +/- 2.54 . 0.20 +/- 2.87 -2.88 +/- 5.62 -1.03 +/- 2.79 -7.78 +/- 6.59 2/16/2015 0.22 +/- 1.54 -0.21 +/- 1.72 1.83 +/- 5.27 -0.20 +/- 2.47 1.66 +/- 2.58 3/9/2015 -1. 79 +/- 2.13 -2.06 +/- 2.31 0.50 +/- 4.60 -1.02 +/- 2.00 -5.79 +/- 4.60 4/21/2015 -1.49 +/- 2.76 -1.35 +/- 2.75 0.45 +/- 5.53 -0.82 +/- 2.35 :-0.08 +/- 5.70 5/26/2015 -0.66 +/- 1.29 -0.45 +/- 1.26 -1.67 +/- 2.57 0.14 +/- 1.40 -4.49 +/- 3.19 6/9/2015 -2.38 +/- 2.93 0.28 +/- 3.03 -0.07 +/- 6.97 0.54 +/- 4.03 1.89 +/- 6.51 7/14/2015 1.07 +/- 4.36 6.06 +/- 5.03 -5.73 +/- 9.50 -4.39 +/- 5.25 12.2 +/- 10.8 8/11/2015 0.56 +/- 3.36 1.19 +/- 3.45 4.42 +/- 8.10 -1.98 +/- 4.08 -'7.35 +/- 8.54 9/7/2015 -5.12 +/- 5.40 1.01 +/- 3.54 1.94 +/- 12.6 -0.56 +/- 5.34 -4.64 +/- 11.4 10/13/2015 1. 70 +/- 2.89 -0.47 +/- 2.42 2.50 +/- 5.34 0.69 +/- 2.97 -7.61 +/- 6.13 11/6/2015 -1.74 +/- 2.98 -1.28 +/- 3.01 -0.19 +/- 5.28 0.08 +/- 3.84 -5.20 +/- 8.60 12/1/2015 1.10 +/- 2.84 -0.56 +/- 2.79 6.18 +/- 6.16 0.00 +/- 2.67 -6.45 +/- 6.86 Nb-95 Zr-95 1-131 Cs-134 Cs-137 1/13/2015 2.06 +/- 2.91 1.30 +/- 5.34 2.30 +/- 5.29 0.71 +/- 3.21 0.54 +/- 2.95 2/16/2015 1.53 +/- 2.73 1.93 +/- 3.89 2.08 +/- 5.18 -0.13 +/- 2.44 -0.38 +/- 2.51 3/9/2015 -0.19 +/- 2.29 0. 79 +/- 4.28 3.09 +/- 5.65 -3.72 +/- 2.50 -0.96 +/- 2.40 4/21/2015 0.71 +/- 2.72 . 2.19 +/- 5.06 -4.04 +/- 5.98 0.54 +/- 4.45 0.31 +/- 2.80 5/26/2015 1.28 +/- 1.39 0.60 +/- 2.19 1.23 +/- 2.82 -0.03 +/- 1.63 0.72 +/- 1.33 | |||
' ! 6/9/2015 1.05 +/- 3.02* 1.12 +/- 5.94 0.65 +/- 5.67 -1.70 +/- 3.34 0.08 +/- 3.43 7/14/2015 1.49 +/- 4.45 3.26 +/- 8.16 -3.75 +/- 6.11 1.54 +/- 4.63 -1.00 +/- 5.09 8/11/2015 1.73 +/- 3.19 2.10 +/- 5.50 -4.43 +/- 5.69 -0.65 +/- 3.33 -0.11 +/- 3.85 9/7/2015 -0.56 +/- 4.56 0.75 +/- 7.87 -0.79 +/- 5.54 0.33 +/- 4.40 0.50 +/- 5.22 10/13/2015 0.36 +/- 2.85 -3.34 +/- 4.84 3.83 +/- 3. 78 -1.08 +/- 3.06 2.11 +/- 3.03 11/6/2015 -1.23 +/- 3.66 2.33 +/- 5.15 . 1.76 +/- 5.27 -1.78 +/- 3.12 1.13 +/- 3.66 12/1/2015 -0.33 +/- 2.79 3.49 +/- 5.22 3.02 +/- 5.37. 2.55 +/- 2.54 1.22 +/- 3.08 Ba-140 La-140 H-3 K-40 Th-228 | |||
: _I 1/13/2015 -9.77 +/- 13.6 4.49 +/- 4.92 2/16/2015 1.62 +/- 8.85 3.22 +/- 4.84 3/9/2015 6.29 +/- 13.8 -3.61 +/- 3.34 -244 +/- 470 4/21/2015 -8.12 +/- 14.7 0.49 +/- 3.92 5/26/2015 0.50 +/- 7.02 0.52 +/- 2.15 ' 4.69 +/- 2.61 6/9/2015 -4.06 +/- 22.2 1.78 +/- 5.95 -1090 +/- 962 71.7 +/- 52.7 7/14/2015 -1.90 +/- 20.2 -1.49 +/- 5. 79 15.2 +/- 10.0 8/11/2015 0.52 +/- 16.4 -5.08 +/- 6.31 68.9 +/- 63.7 9/7/2015 -6.41 +/- 13.9 -3.81 +/- 7.32 -360 +/- 563 167 +/- 128 10/13/2015 4.53 +/- 10.6 1.80 +/- 3.68 11/6/2015. -0.15 +/- 12.6 . 0.83 +/- 4.09 12/1/2015 -2.75 +/- 15.1 -3.29 +/- 4.69 161 +/- 551 41 | |||
TABLE 3-10: GAMMA EMITTER CONCENTRATIONS IN SILT Suny Power Station, Suny County, Vrrginia -2015 pCi/kg (dry)+/- 2 Sigma Page 1 ofl SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Cs-134 Cs-137 K-40 Th-232 Th-228 SD 3/9/2015 21.4 +/- 43.5 24.1 +/- 50.8 12900 +/- 1330 1510 +/- 207 1570 +/- 129 9/3/2015 9.64 +/- 79.7 76.4 +/- 90.5 21100 +/- 2630 1320 +/- 285 1110 +/- 177 Ra-226 3/9/2015 3260 +/- 1660 9/3/2015 Cs-134 Cs-137 K-40 Th-232 Th-228 CHIC-C 3/9/2015 14.5 +/- 89.7 196 +/- 134 21200 +/- 2830 1790 +/- 444 1460 +/- 389 9/2/2015 -5.42 +/- 105 214 +/- 130 16900 +/- 2770 1130 +/- 302 1270 +/- 263 Ra-226 3/9/2015 9/2/2015 2260 +/- 2200 42 | |||
TABLE 3-11: GA1Wl:t4 EMITTER CONCENTRATIONS IN SHORELINE SEDIMENT Suny Power Station, Suny County, Virginia- 2015 pCi/kg (dry)+/- 2 Sigma Page 1of1 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE C~134 C~137 K-40 Ra-226 Th-228 HIR 2/23/2015 -10.1 +/- 31.6 -4.60 +/- 23.7 7760 +/- 1000 1420 +/- 912 315 +/- 88.5 8/11/2015 -13.5 +/- 29.8 -12.5 +/- 29.6 5720 +/- 819 734 +/- 79.6 Th-232 2/23/2015 444 +/- 102 8/11/2015 737 +/- 108 CHIC-C 2/23/2015 0.25 +/- 18.4 -7.78 +/- 18.3 2430 +/- 495 927 +/- 639 330 +/- 53.0 8/11/2015 34.3 +/- 35.4 -17.2 +/- 33.9 1640 +/- 600 2350 +/- 1250 1370 +/- 106 Th-232 2/23/2015 413 +/- 86.9 8/11/2015 1350 +/- 173 43 | |||
TABLE 3-12: GAMMA EMITTER CONCENTRATION IN FISH Suny Power Station, Suny County, Virginia*- 2015 pCi/kg (wet) ::l;: 2 Sigma Page 1of1 SAMPLING COLLECTION SAMPLE LOCATION DATE TYPE ISOTOPE K-40 Mn-54 Co-58 Fe-59 SD 4/6/2015 Catfish 2910 +/- 871 1.20 +/- 37.3 -4.54 +/- 34.6 0.18 +/- 63.7 4/6/2015 Game fish 1040 +/- 600 -14.5 +/- 33.8 -21.6 ~ 34.1 -16.8 +/- 75.4 10/7/2015 Catfish 1690 +/- 547 -8.83 +/- 21.4 5.86 +/- 20.6 21.8 +/- 52.9 10/7/2015 Game fish 1950 +/- 771 2.28 +/- 29.2 -3.01 +/- 33.8 19.5 +/- 93.8 Co-60 Zil-65 Cs-134 . Cs-137 4/6/2015 Catfish -13.3 +/- 35.1 -61.0 +/- 79.8 8.94 +/- 39.9 19.8 +/- 38.3 4/6/2015 Game fish 25.9 +/- 33.2 -14~0 +/- 73.2 -81.6 +/- 40.6 -4.67 +/- 38.8 10/7/2015 Catfish 4.30 +/- 24.3 0.42 +/- 42.6 2.65 +/- 25.6 9.87 +/- 23.1 10/7/2015 Game fish 31.9 +/- 30*.8 31.0 +/- 79.6 -2.74 +/- 35.1 -21.9 +/- 36.8 44 | |||
TABLE 3-13: GAMMA EMITTER CONCENTRATIONS IN OYSTERS Suny Power Station, Suny County, Vrrginia - 2015 pCi/kg (wet) +/- 2 Sigma Page 1of1 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 POS 3/9/2015 -2.26 +/- 23.0 -12.4 +/- 25.7 5.51 +/- 44.7 16.7 +/- 24.2 9/3/2015 31.2 +/- 32.1 -9.59 +/- 41.4 -61.9 +/- 72.5 -6.36 +/- 32.8 Zn-65 Cs-134 Cs-137 K-40 3/9/2015 23.0 +/- 49.9 -20.0 +/- 24.1 2.75 +/- 25.2 867 +/- 539 9/3/2015 19.5 +/- 34.8 15.7 +/- 33.5 0.70 +/- 35.8 Mn-54 Co-58 Fe-59 Co-60 MP 3/10/2015 -22.3 +/- 33.1 -34. 7 +/- 36.6 -44.9 +/- 65.0 0.98 +/- 31.8 9/3/2015 -4.80 +/- 26.6 0.23 +/- 25.7 -31.6 +/- 60.6 -25.2 +/- . 25.1 Zn-65 Cs-134 Cs-137 K-40 3/10/2015 -105 +/- 84.6 16.2 +/- 42.1 19.7 +/- 36.2 955 +/- 643 9/3/2015 ' -72.9 +/- 84.5 15.9 +/- 27.7 9.34 +/- 24.9 Mn-54 Co-58 Fe-59 Co-60 LC 3/10/2015 -12.9 +/- 19.4 5.73 +/- 20.4 13.4 +/- 54.6 19.6 +/- 22.1 9/3/2015 -12.6 +/- 37.9 9.64 +/- 40.1 -74.2 +/- 114 2.49 +/- 24.8 Zn-65 Cs-134 Cs-137 K-40 3/13/2013 -26.7 +/- 38.8 -3.04 +/- 21.6 4.29 +/- 19.4 611 +/- 399 9/3/2015 -6.90 +/- 96.6 0.53 +/- 36.0 7.16 +/- 30.5 45 | |||
TABLE 3-14: GAMMA EMITTER CONCENTRATIONS IN CLAMS Suny Power Station, Suny County, Vrrginia - 2015 pCi/kg (wet) +/- 2 Sigma Page 1 of 1 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 JI 3/9/2015 -1.79 +/- 22.0 -4.38 +/- 28.0 21.2 +/- 51.6 -3.30 +/- 25.9 9/2/2015 4.35 +/- 27.7 5.45 +/- 24.7 -1.48 +/- 61.9 6.07 +/- 22.2 Zn-65 Cs-134 Cs-137 3/9/2015 -36.4 +/- 52.1 -17.2 +/- 25.4 . 13.2 +/- 24.9 9/2/2015 -7.41 +/- 44.4 -0.84 +/- 28.5 -17.3 +/- 36.8 Mn-54 Co-58 Fe-59 Co-60 SD 3/9/2015 12.4 +/- 27.1 -8.75 +/- 28.4 -23.5 +/- 61.9 13.0 +/- 29.4 9/3/2015 -10.7 +/- 23.5 -14.8 +/- 34.8 -27.5 +/- 61.0 -9.49 +/- 30.1 Zn-65 Cs-134 Cs-137 3/9/2015 -46.5 +/- 6i4 -22.7 +/- 37.4 16.0 +/- 30.0 9/3/2015 23.2 +/- 63.4 3.44 +/- 29.5 -14.6 +/- 31.3 Mn-54 Co-58 Fe-59 Co-60 CHIC-C 3/9/2015 -1.36 +/- 20.1 -8.33 +/- 22.0 15.6 +/- 52.8 -2.10 +/- 17.8 9/2/2015 9.52 +/- 21.7 8.29 +/- 22.5 16.9 +/- 39.7 2.06 +/- 21.6 Zn-65 Cs-134 Cs-137 3/9/2015 -66.1 +/- 46.5 2.24 +/- 28.1 0.41 +/- 22.0 9/2/2015 -51.4 +/- 60.8 -10.3 +/- 20.5 -16.8 +/- 25.1 46 | |||
TABLE 3-15: GAMMA EMITTER CONCENTRATIONS IN CRABS Suny Power Station, Suny County, Vrrginia -.2015 pCi/kg (wet)+/- 2 Sigma Page 1 of 1 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE K-40 Mn-54 Co-58 Fe-59 SD 6/9/2015 1140 +/- 725 -9.54 +/- 30.5 9.19 +/- 33.8 -21.1 +/- 78.9 Co-60 Zn-65 Cs-134 Cs-137 18.3 +/- 27.9 -55.4 +/- 75.8 -25.0 +/- 33.3 17.7 +/- 34.2 47 | |||
: 4. DISCUSSION OF RESULTS , | |||
Data from the radiological analyses of environmental media collected during 2015 and tabulated in Section 3, are discussed below. Tue 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. Tue results of the Interlaboratory Comparison Program are provided in Appendix B. | |||
Tue predominant radioactivity detected throughout 2015 was from external sources, such as fallout from nuclear weapons tests (cesium-137) and naturally occurring radionuclides. Naturally occurring nuclides such as beryllium-7, potassium-40, radium-226, thorium-228 and thorium-232 were detected in numerous samples. | |||
Tue following is a discussion and summary of the results of the environmentcil measurements taken during the 2015 reporting period. | |||
4.1 Gamn,,a Exposure Rate A thermoluminescent dosimeter (TLD) is an inorganic crystal used to detect ambient radiation. 'Two TLDs, made of CaF and LiF elements and specifically designed for environmental monitoring, are deployed at each sampling location. | |||
TLDs are placed in two concentric rings around the station. The inner ring is located in the vicinity of the site boundary, and the outer ring is located at approximately five miles from the station. TLDs are also placed in_ special interest areas, such as population centers and nearby residences. Additional TLDs serve as controls. Ambient radiation comes from naturally occurring radioisotopes in the air and soil, radiation from cosmic origin, fallout from nuclear weapons testing, station effluents and direct radiation from the station. | |||
Tue results of the TLD analyses are presented in Table 3..:2. Figure 4-1 shows a historical trend of TLD exposure rate measurements, comparing the average of indicator TLDs located near the site boundary and at 5 miles to the average of all control TLD locations. Control and indicator averages indicate a steady | |||
**relationship. In 2013, Panasonic UD-814 environmental TLDs replaced Harshaw environmental TLDs that were used since 2001. Benchmarking showed that Panasonic UD-814 TLDs were the industry best environmental TLD with improved precision over the Harshaw TLDs. Along with implementing new environmental 48 | |||
TLDs in 2013, an improved method for calculating control dosimeter dose was implemented to estimate transit dose. A program review found that control dosimeters cannot be used directly to assess the transit dose, since control dosimeters also accrue dose from cosmic radiation while stored in the shielded storage cask/ cave. Therefore, additional calculations must be made in order to determine the transit *dose component. This transit dose component was determined by processing the control dosimeters, and subtracting out the monitoring period storage dose. Previously, control dosimeters were assumed to be a direct measurement of transit dose which resulted in a non-conservative (lower) result of reported field doses. The field dose with the replacement TLDs is higher than that of the previously used TLDs as the greater precision and accuracy of the replacement TLD along with improved control dosimeter dose provides a more representative response to ambient radiation. | |||
Figure4-1: DIRECT RADIATION MEASUREMENT TLD RESULTS | |||
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-+- SiteBoundry _._ SMile --.- AvgContro l I 4.2 Airborne Gross Beta Air is continuously sampled by passing it through glass fiber particulate filters. | |||
The filters collect airborne particulate radionuclides. Once a week the samples are collected and analyzed for gross beta activity. Results of the weekly gross beta analyses are presented in Table 3-3. A review of the results from control and indicator locations continues to show no significant variation in measured activities (see Figure 4-2 and 4-3). This indicates that any station contribution is 49 | |||
activities (see Figure 4-2 and 4-3). This indicates that any station contribution is not measurable. As evident in Figure 4-2, the control gross beta concentration deviated from the norm for the sampling period of June 30 - July 7. Electrical power was lost to the control sampler during this sampling period. | |||
Gross beta activity found during the pre-operational and early operating period of Surry Power Station was higher because of nuclear weapons testing. During that time, nearly 740 nuclear weapons were tested worldwide. In 1985 weapons testing ceased, and with the exception of the Chernobyl accident in 1986, airborne gross beta results have remained steady. | |||
Figure 4-2: 2015 GROSS BETA IN AIR PARTICULATES 0.045 0.040 0.035 0.030 | |||
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.E uc. 0.020 0.015 0.0 10 0.005 0.000 V) | |||
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I ---+--- Avg Indicator ___.....__ Ave Con trol I 50 | |||
Figure 4-3: GROSS BETA IN AIR PARTICULATES HISTORICAi. TREND | |||
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~ | |||
0 0 0 0 0 0 N N N N N N N N N N N N N N N N | |||
- - - Avg lndicator __._ AvgControl - Avg-Pre Op - - Required LLD 4.3 Airborne Radioiodine Air is also continuously sampled for radioiodines by passing it 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. These results are sirriilar to pre-operational data and the results of samples taken prior to and after the 1986 accident in the Soviet Union at Chernobyl and the Fukushima Daiichi nuclear incident in 2011 . | |||
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 is produced by cosmic processes. No man-made radionuclides were identified. These analyses confirm the lack of station effects. | |||
51 | |||
4.5 CowMilk Analysis of milk samples is generally the most sensitive indicator of fission product existence in the terrestrial environment. This, in combination with the fact that consumption of milk is significant, results in this pathway usually being the most critical from the plant release viewpoint. This pathway also shows measurable amounts of nuclear weapons testing fallout. Therefore, this media needs to be carefully evaluated when trying to determine if there is any station effect. | |||
Results of gamma spectroscopy indicate no detectable station related radioactivity in the milk samples. In years past, cesium-137 had been detected sporadically. | |||
The occurrences were attributed to residual global fallout from past atmospheric weapons testing. Cs-137 was not detected at a level above the LLD in 2015. | |||
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 composite samples at an average concentration of 1. 78 pCi/L. Sr-90 is not a component of the station radiological effluents and is a product of nuclear weapons testing fallout which has been well documented. | |||
: 4. 6 Food Products Three samples were collected and analyzed by gamma spectroscopy. The results of the analyses are presented in Table 3-7. As expected, naturally occurring potassium-40 was detected in all samples. The average concentration is consistent with that observed in previous years. No station related radioactivity was detected. | |||
: 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 at three indicator locations and analyzes for gamma radiation and for tritium. The results of these analyses are presented in Table 3-8. Consistent with past monitoring, no station related radioactivity was detected. No gamma emitting isotopes were detected during the pre-operational period. | |||
: 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 spectroscopy. The 52 | |||
monthly samples are also composited and analyzed for tritium on a quarterly basis. Tritium was not detected and, with the exception of natural products, no other gamma emitters were detected. The naturally occurring radionuclides detected were potassium-40 and thorium-228. No station related radioactivity was detected. | |||
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 two locations, one upstream and one downstream of the station. The results of the gamma spectroscopy analyses are presented in Table 3-10. Naturally occurring potassium-40, radium-226, thorium-228 and thorium-232 were detected. Historically, cobalt-60 has been detected in samples obtained from the indicator location (SD). Cobalt-60 has not been detected since 2003. Trend graphs of cobalt-60 and cesium-137 in silt appear in Figures 4-4 and 4-5. | |||
The concentrations of cesium-137 detected indicate a continual decreasing trend as seen for over two decades. The detection of cesium-137 in both control and indicator samples and decreasing levels indicate that the presence of cesium-137 is the result of accumulation and runoff into the river of residual weapons testing fallout. Its global presence has been well documented. During the pre-operational period, cesium-137 was detected in silt samples with an average concentration as indicated in Figure 4-5. At the control location, cesium-137 was detected with an average concentration of 205 pCi/kg. In 2015, for the first time, cesium-137 was not detected in the indicator location. The cesium-137 concentrations in silt continue to decline and fluctuate around the REMP lower limit of detection (LLD) concentration, which could account for the non-detect. | |||
This trend will continue to be closely monitored. | This trend will continue to be closely monitored. | ||
53 l.OE+03 | 53 | ||
"<t" \0 00 0 0 0 0 0 | Figure 4-4: COBALT-60 IN SILT l.OE+ 03 "C | ||
The activities of these radionuclides indicate a steady trend. There were no radionuclides attributable to the operation of the station found 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. These results are the same as those seen over the last decade. No activity was observed in this media except for naturally occurring potassium-40. 55 4.12 Oysters Oysters were collected from three different locations. | Cl | ||
* The results of the oyster analyses are presented in Table 3-13. There were no gamma emitting radionuclides detected in oysters sampled except for naturally occurring potassium-40. | ~ l.OE+02 uQ. | ||
No station related radioactivity has been detected in this media since 1991. The absence of station related radionuclides is attributable to the replacement of steam generators in 1982 and past improvements made to liquid effluent treatment systems. 4.13 Clams Clams are analyzed from three different locations. | l.OE+Ol | ||
The results of the gamma spectroscopy analyses are presented in Table 3-14. Like oysters, no station related radioactivity was *detected. | "<t" 0 | ||
4.14 Crabs A crab sample was collected in June from the station discharge canal and analyzed by gamma spectroscopy. | 0 N | ||
The results of the analysis are presented in Table 3-15. Other than naturally occurring potassium-40, no other gamma emitting radionuclides were detected in the sample. This is consistent with operational data and data collected over the past decade. 56 | \0 0 | ||
: 5. PROGRAM EXCEPTIONS There were two REMP exceptions for scheduled sampling and analysis during 2015. 1. For the sample period Jan 13 -20, samples for gross beta and iodine-131 in air were not obtained from the BASF air sampling station. The BASF air sampler was located within a substation that was permanently removed from service during the Jan 13 -20 sample period. It was unknown to Surry Power Station that the substation was to be removed from service. Prior to the loss of power to the sampler, insufficient sample volume had accumulated to meet the lower limit of detection for gross beta and iodine-131 analyses. | 0 N | ||
00 0 | |||
0 N | |||
0 0 | |||
N N | |||
0 N | |||
"<t" 0 | |||
N | |||
-+- Control - Chickahominy -+- Station Discharge 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 2015. | |||
54 | |||
Figure 4-5: CESIUM-137 IN SILT | |||
-+- Co ntro l - Chickahominy ......__ Station Discharge - Ave-Pre Op - Required LLD 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. The activities of these radionuclides indicate a steady trend. There were no radionuclides attributable to the operation of the station found 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. These results are the same as those seen over the last decade. No activity was observed in this media except for naturally occurring potassium-40. | |||
55 | |||
4.12 Oysters Oysters were collected from three different locations. | |||
* The results of the oyster analyses are presented in Table 3-13. | |||
There were no gamma emitting radionuclides detected in oysters sampled except for naturally occurring potassium-40. No station related radioactivity has been detected in this media since 1991. The absence of station related radionuclides is attributable to the replacement of steam generators in 1982 and past improvements made to liquid effluent treatment systems. | |||
4.13 Clams Clams are analyzed from three different locations. The results of the gamma spectroscopy analyses are presented in Table 3-14. Like oysters, no station related radioactivity was *detected. | |||
4.14 Crabs A crab sample was collected in June 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 were detected in the sample. This is consistent with pre-operational data and data collected over the past decade. | |||
56 | |||
: 5. PROGRAM EXCEPTIONS There were two REMP exceptions for scheduled sampling and analysis during 2015. | |||
: 1. For the sample period Jan 13 - 20, samples for gross beta and iodine-131 in air were not obtained from the BASF air sampling station. The BASF air sampler was located within a substation that was permanently removed from service during the Jan 13 - 20 sample period. It was unknown to Surry Power Station that the substation was to be removed from service. Prior to the loss of power to the sampler, insufficient sample volume had accumulated to meet the lower limit of detection for gross beta and iodine-131 analyses. | |||
: 2. For the sample period Jun 30 -Jul 7, samples for gross beta and iodine-131 in air were not obtained from the NN air sampling station. The sampler was found inoperable upon arrival at the NN air sampling station. Prior to the loss of power to the sampler, insufficient sample volume had accumulated to meet the lower limit of detection for gross beta and iodine-131 analyses. | : 2. For the sample period Jun 30 -Jul 7, samples for gross beta and iodine-131 in air were not obtained from the NN air sampling station. The sampler was found inoperable upon arrival at the NN air sampling station. Prior to the loss of power to the sampler, insufficient sample volume had accumulated to meet the lower limit of detection for gross beta and iodine-131 analyses. | ||
NOTE: Due to the issues described above, Surry Power station has installed electronic monitoring devices on all REMP air samplers. | NOTE: Due to the issues described above, Surry Power station has installed electronic monitoring devices on all REMP air samplers. These devices monitor for loss of power and low sample flow rate. If either of these conditions is | ||
These devices monitor for loss of power and low sample flow rate. If either of these conditions is . detected on an air sampler, the device makes an immediate notification by page and e-mail. The condition can then be assessed and appropriate actions taken to prevent the loss of monitoring for a sampling period. The 2013 Annual Radiological Environmental Operating Report was submitted with iodine-131 in air sample data omitted for the sample period February 05 through 12 for all eight sampling stations. | . detected on an air sampler, the device makes an immediate notification by page and e-mail. The condition can then be assessed and appropriate actions taken to prevent the loss of monitoring for a sampling period. | ||
Appendix C contains the revised analysis data table for iodine-131 in air for 2013. 57 | The 2013 Annual Radiological Environmental Operating Report was submitted with iodine-131 in air sample data omitted for the sample period February 05 through 12 for all eight sampling stations. Appendix C contains the revised analysis data table for iodine-131 in air for 2013. | ||
This section presents conclusions for each pathway. > Direct Radiation. | 57 | ||
Exposure Pathway -Control and indicator location averages continue to indicate a steady relationship and trend over the long term. > Airborne Exposure Pathway -Analysis of charcoal cartridge samples for radioiodines indicated no positive activity was detected. | : 6. CONCLUSIONS The results of the 2015 Radiological Environmental Monitoring Program for Surry Power Station have been presented in previous sections. This section presents conclusions for each pathway. | ||
Quarterly gamma isotopic analyses of the composite | > Direct Radiation. Exposure Pathway - Control and indicator location averages continue to indicate a steady relationship and trend over the long term. | ||
* particulate samples identified only naturally occurring beryllium-7 and .Potassium-40. | > Airborne Exposure Pathway - Analysis of charcoal cartridge samples for radioiodines indicated no positive activity was detected. Quarterly gamma isotopic analyses of the composite | ||
Air particulate gross beta concentrations at all of the indicator locations for 2015 trend well with | * particulate samples identified only naturally occurring beryllium-7 and .Potassium-40. Air particulate gross beta concentrations at all of the indicator locations for 2015 trend well with | ||
* the control location. | * the control location. | ||
> Milk -Milk samples are an important indicator measuring the effect of radioactive iodine and radionuclides in airborne releases. | > Milk - Milk samples are an important indicator measuring the effect of radioactive iodine and radionuclides in airborne releases. Cesium-137 and iodine-131 were not detected in any of the thirty-six samples. Naturally occurring potassium-40 was detected at a similar level when compared to the averages of th~ previous years. | ||
Cesium-137 and iodine-131 were not detected in any of the thirty-six samples. Naturally occurring potassium-40 was detected at a similar level when compared to the averages of previous years. Strontium-90 was detected in two samples at an average concentration of 1. 78 pCi/L. Strontium-90 is not a component of station effluents, but rather, a product of nuclear weapons testing fallout. | I : | ||
Tritium was not detected. | Strontium-90 was detected in two samples at an average concentration of | ||
)-Silt -Cesium-137 was detected in the control sample and not in the indicator sample. The presence of cesium-137 is attributable to residual weapons testing fallout and its presence has been well documented. | : 1. 78 pCi/L. Strontium-90 is not a component of station effluents, but rather, a product of nuclear weapons testing fallout. | ||
Cobalt-60 has not been detected since 2003. | > Food Products .- As expected, naturally occurring potassium-40 was detected in all three samples. In the past, cesium-137 had occasionally been detected in these samples and is attributable to global fallout from past nuclear weapons testing. Cesium-137 was not detected in any of the three samples collected in 2015. | ||
* 58 | > Well Water - Well water sample analyses indicated there was no radioactivity attributable to the operation of the station. This trend is consistent throughout the monitoring period. | ||
);>-Shoreline Sediment -Naturally occurring radionuclides were detected at concentrations equivalent to normal* background activities. | )- River Water - River water samples were analyzed for gamma emitting radionuclides and tritium. Only the naturally occ:urring gamma emitting radionuclides potassium-40 and thorium-228 were detected. Tritium was not detected. | ||
There were no radionuclides attributable to tb.e operation of Surry Power Station found in any sample. Aquatic Biota );>-Fish -As expected, naturally occurring potassium-40 was detected. | )- Silt - Cesium-137 was detected in the control sample and not in the indicator sample. The presence of cesium-137 is attributable to residual weapons testing fallout and its presence has been well documented. Cobalt-60 has not been detected since 2003. | ||
There were no other gamma emitting radionuclides detected in any of the fish samples. >--Oysters and Clams -Other than naturally occurring potassium-40, there were no other gamma emitting radionuclide*s detected in any of the oyster or clam samples. * );>-Crabs -Naturally occurring potassium-40 was detected. | * 58 | ||
No other gamma emitting radionuclides were detected. | |||
59 REFERENCES 60 | );>- Shoreline Sediment - Naturally occurring radionuclides were detected at concentrations equivalent to normal* background activities. There were no radionuclides attributable to tb.e operation of Surry Power Station found in any sample. | ||
Aquatic Biota | |||
: 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, "Envrronmental 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)". | );>- Fish - As expected, naturally occurring potassium-40 was detected. There were no other gamma emitting radionuclides detected in any of the fish samples. | ||
: 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: | >-- Oysters and Clams - Other than naturally occurring potassium-40, there were no other gamma emitting radionuclide*s detected in any of the oyster or clam samples. * | ||
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. 61 APPENDICES 62 APPENDIX A: LAND USE CENSUS Year 2015 63 LAND USE CENSUS* Surry Power Station, Surry County, Virginia January 1 to December 31, 2015 Page 1 of 1 Nearest Nearest Nearest Nearest Sector Direction Resident Garden** Cow Goat A N 4.1@ 10° (a) (a) (a) B NNE 1.9 @32° (a) (a) (a) c NE 4.7@35° (a) (a) (a) D ENE (a) (a) (a) (a) E E (a) (a) (a) (a) F ESE (a) (a) (a) (a) G SE 2.8@ 142° (a) (a) (a) H SSE 2.7@ 158° 2.7@ 158° (a) (a) J s l.7@181° 2.0@ 183° (a) (a) K SSW 1.9@ 192° 1.9@ 192° 4.8@200° (a) L SW 2.3@221° 4.7@228° (a) (a) M WSW 0.4@244° 3.6@245° (a) (a) N w 3.1 @260° 3.4@260° (a) (a) p WNW 4.9@283° (a) (a) (a) Q NW 4.6@321° (a) (a) (a) R NNW 3.8 @338° 4.4@334° 3.7@336° (a) | );>- Crabs - Naturally occurring potassium-40 was detected. No other gamma emitting radionuclides were detected. | ||
* Locations are listed by miles and degrees heading relative to true north from center of Unit #1 Containment. | 59 | ||
** Area greater than 50 m 2 and contains broadleaf vegetation. (a) None 64 APPENDIX B: | |||
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, "Envrronmental 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)". | |||
I | |||
~ | |||
: 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. | |||
61 | |||
APPENDICES 62 | |||
APPENDIX A: LAND USE CENSUS Year 2015 63 | |||
LAND USE CENSUS* | |||
Surry Power Station, Surry County, Virginia January 1 to December 31, 2015 Page 1 of 1 Nearest Nearest Nearest Nearest Sector Direction Resident Garden** Cow Goat A N 4.1@ 10° (a) (a) (a) | |||
B NNE 1.9 @32° (a) (a) (a) c NE 4.7@35° (a) (a) (a) | |||
D ENE (a) (a) (a) (a) | |||
E E (a) (a) (a) (a) | |||
F ESE (a) (a) (a) (a) | |||
G SE 2.8@ 142° (a) (a) (a) | |||
H SSE 2.7@ 158° 2.7@ 158° (a) (a) | |||
J s l.7@181° 2.0@ 183° (a) (a) | |||
K SSW 1.9@ 192° 1.9@ 192° 4.8@200° (a) | |||
L SW 2.3@221° 4.7@228° (a) (a) | |||
M WSW 0.4@244° 3.6@245° (a) (a) | |||
N w 3.1 @260° 3.4@260° (a) (a) p WNW 4.9@283° (a) (a) (a) | |||
Q NW 4.6@321° (a) (a) (a) | |||
R NNW 3.8 @338° 4.4@334° 3.7@336° (a) | |||
* 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 broadleaf vegetation. | |||
(a) None 64 | |||
APPENDIX B: | |||
==SUMMARY== | ==SUMMARY== | ||
OF INTERLABORATORY COMPARISONS Year 2015 65 INTRODUCTION This appendix covers the Interlaboratory Comparison Program (ICP) of Teledyne Brown Engineering (TBE). TBE use QA/ QC samples provided by Eckert & Ziegler Analytics, Inc., Environmental Resource Associates (ERA) and the Mixed Analyte Performance Evaluation Program (MAPEP) to monitor the quality of analytical processing associated with the REMP. Each provider has a documented Quality Assurance program and the capability to prepare Quality Control materials traceable to the National Institute of Standards and Technology (NIST). The providers supply the samples to TBE, and upon receipt, the laboratories perform the analyses in a normal manner. The results are then reported to the provider for evaluation. | OF INTERLABORATORY COMPARISONS Year 2015 65 | ||
The suite of QA/QC samples is designed to provide sample media and radionuclide combinations that are offered by the providers and included in the REMP and typically includes: | |||
>-milk for gamma nuclides and low-level iodine-131 analyses, >-milk for Sr-89 and Sr-90 analyses, >-water for gamma nuclides, low-level iodine-131, and gross beta analyses, >-water for tritium, Sr-89, and Sr-90 analyses, >-cartridge for I-131 analyses, >-air filter for gamma nuclide, gross beta, and Sr-90 analyses. | INTRODUCTION This appendix covers the Interlaboratory Comparison Program (ICP) of Teledyne Brown Engineering (TBE). TBE use QA/ QC samples provided by Eckert & Ziegler Analytics, Inc., Environmental Resource Associates (ERA) and the Mixed Analyte Performance Evaluation Program (MAPEP) to monitor the quality of analytical processing associated with the REMP. Each provider has a documented Quality Assurance program and the capability to prepare Quality Control materials traceable to the National Institute of Standards and Technology (NIST). The providers supply the samples to TBE, and upon receipt, the laboratories perform the analyses in a normal manner. The results are then reported to the provider for evaluation. The suite of QA/QC samples is designed to provide sample media and radionuclide combinations that are offered by the providers and included in the REMP and typically includes: | ||
>- milk for gamma nuclides and low-level iodine-131 analyses, | |||
>- milk for Sr-89 and Sr-90 analyses, | |||
>- water for gamma nuclides, low-level iodine-131, and gross beta analyses, | |||
>- water for tritium, Sr-89, and Sr-90 analyses, | |||
>- cartridge for I-131 analyses, | |||
>- air filter for gamma nuclide, gross beta, and Sr-90 analyses. | |||
The accuracy of each result reported to Eckert & Ziegler Analytics, Inc. is' measured by the ratio of the TBE result to the known value. Accuracy for all other results is based on statistically derived acceptance ranges calculated by the providers. | The accuracy of each result reported to Eckert & Ziegler Analytics, Inc. is' measured by the ratio of the TBE result to the known value. Accuracy for all other results is based on statistically derived acceptance ranges calculated by the providers. | ||
* An investigation is undertaken whenever the ratio or reported result fell outside of the acceptance range. | |||
RESULTS The TBE ICP results are included in the following tables for the first through the fourth quarters of 2015. Some analyses did not meet the acceptance criteria. TBE initiated non-conformance reports (NCRs) to document and address the | |||
Latest revision as of 22:52, 24 February 2020
| ML16141A371 | |
| Person / Time | |
|---|---|
| Site: | Surry, 07200002, 07200055  |
| Issue date: | 05/02/2016 |
| From: | Lawrence D Virginia Electric & Power Co (VEPCO) |
| To: | Document Control Desk, Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation |
| References | |
| 16-163 | |
| Download: ML16141A371 (80) | |
Text
VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 May 2, 2016 United States Nuclear Regulatory Commission Serial No.16-163 Attention:* Document Control Desk SS&L/TSC RO Washington, DC 20555-0001 Docket Nos. 50-280 50-281 72-2 72-55 License Nos. DPR-32 DPR-37 SNM-2501 VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNITS 1AND2 INDEPENDENT SPENT FUEL STORAGE INSTALLATION ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT Surry Units 1 and 2 Technical Specification 6.6.B.2 requires the submittal of an Anhual 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, 2015 through December 31, 2015, which includes environmental monitoring for the Surry ISFSI.
If you have any further questions, please contact Jason Eggart at 757-365-2010.
Douglas . Lawrence Director Safety & Licensing Surry Power Station Attachment Commitments made in this letter: None
Serial No.16-163 Docket Nos.: 50-280 50-281 72-2 72-55 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 Division of Radiological Health 109 Governor Street, Room 730 Richmond, Virginia 23219
Serial No.16-163 Docket Nos.: 50-280 50-281 72-2 72-55 ATTACHMENT 1 2015 Annual Radiological Environmental Operating Report SURRY POWER STATION UNITS 1AND2 VIRGINIA ELECTRIC AND POWER COMPANY
Surry Power Station 2015 Annual Radiological Environmental Operating Report
Dominion Surry Power Station Radiological Environmental Monitoring Program January 1, 2015 to December 31, 2015
Annual Radiological Environmental Operating Report Surry Power Station January 1, 2015 to December 31, 2015 Prepared by: f /: 1JI~
- - - - - - - - - - - +P.*F.-Blount ------------
Health Physicist P.R. Harris Supervisor Radiological Analysis
,,,...~} , / ,/"l )
Reviewed by: ------:1~-~------(.....-c-_.--,I"-/_._,.,_~--=-=r------
__, W. A<-Terry--z:;:T-Supervisor Health Physics Technical Services
___,n~~Ai~'"°----?J Approved by: _ _ _
-r __ fa,-ft'j::ia..,.......j11_Jc_*_ -_ _
J.\VEggart Manager Radiological Protection and Chemistry
Table of Contents PREFACE .......................................................................................................... ,................................... 4
- 1. EXECUTIVE
SUMMARY
............................................................................................................... 5
- 2. PROGRAM DESCRIPTION ............................................................................................................ 7 2.1 Introduction ............................................................................................................................. ?
2.2 Sampling and Analysis Program ...................................................................... :...................... 8
- 3. ANALYTICAL RESULTS ............................................................................................................. 20 3.1 Summary of Results .............................................................................................................. 20 3.2 Analytical Results of 2015 REMP Samples ........................................................................ .27
- 4. DISCUSSION OF RESULTS ...................................................................................................... 48 4.1 Gamma Exposure Rate ........................................................................................................_.48 4.2 Airborne Gross Beta.............................................................................................................. 49 4.3 Airborne Radioiodine ............................................................................................................ 51 4.4 Air Particulate Gamma ......................................................................................................... 51 4.5 cow Milk .............................................................................................................................. 52 4.6 Food Products ....................................................................................................................... 52 4.7 Well Water ............................................................................................................................ 52 4.8 RiverWater ........................................................................................................................... 52 4.9 Silt .........................................................................................................-................................ 53 4.10 Shoreline Sediment ............................................................................................................. 55 4.11 Fish ................................................................. :.................................................................... 55 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 APPENDIX C: ERRATA .................................................................................... 73 3
PREFACE This report is submitted as required by Technical Specification 6.6.B.2, Annual Radiological Environmental 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, Item 1.3.1.
4
- 1. EXECUTIVE
SUMMARY
This document is a detailed report of the 2015 Surry Power Station Radiological Environmental Monitoring Program (REMP).
- Radioactivity levels from January 1 through December 31, 2015, 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 radiologicai 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 sampJes show how much radiation. is contributed to the enVironment by the station .
.Indicator samples are taken from areas dose 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 Global Dosimetry Solutions, Inc. provides thermoluminescent dosimetry (TLD) services. Participation in an Interlaboratory Comparison Pr~gram 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 Commissfon (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 5
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.
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. 1Jie 2015 airborne results were similar 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 potassium~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. The cesium-137 activity was present in the control and. indicator locations and is attributable to global fallout from past nuclear weapons testing and nuclear accidents such as Chernobyl.
Shoreline sed:tinent, which may provide a direct exposure pathway, contained no station related* radionuclides. Naturally occurring radionuclides potassium, radium and thorium were detected at average environmental levels. The terrestrial exposure pathway includes milk and food products. Iodine-131 was
- riot detected in any 2015 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 man-made radionuclides were detected in food product samples. Consistent with historical data, naturally occurring potassium-40 was detected in milk and food.
products. The direct exposure pathway measures environmental radiation doses using TLDs~ TLD results have remained relatively constant over the years.
During 2015, 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 2015 was 0.030 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 federcll and state regulations and also demonstrate the adequacy of radioactive effluent controls at Surry Power Station.
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- 2. PROGRAM DESCRIPTION 2.1 Introduction This report documents the 2015 Surry Power Station operational Radiological Environmental Monitoring Program (REMP). The Dominion 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 D*ecember 22, 1972, and Unit 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 Technical 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 against unexpected or undefined environmental processes which might allow undue accumulation of radioactivity in the environment, a program for monitoring the station environs is also included in Surry Power Station Technical Specifications.
Dominion personnel are responsible for collecting the various indicator and control environmental samples. Global Dosimetry Solutions Incorporated is responsible for processing the TLDs. Teledyne Brown Engineering is responsible
- for sample analyses. The results of the analyses are used to determine if changes in radioactivity levels may be attributable to station operations. Measured values are compared with control values, which vary with time due to external events, such as cosmic ray bombardment, nuclear weapons test fallout and seasonal variations of naturally occurriilg radionuclides. Data collected prior to station .
operation is used to indicate the degree of natural variation to be expected. This pre-operational data is compared with data collected during the operational phase to assist in evaluating any radiological impact of station operation.
Occasionally, samples of environmental media 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).
7
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 2015 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 tli~ 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 Table 2-1 summarizes the 2015 sampling program for Surry Power Station. All samples listed in Table 2-1 are taken at indicator locations except those labeled "control." Dominion personnel collect all samples listed in Table 2-1.
Table 2-2 summarizes the analysis program conducted by Teledyne Brown Engineering and Global Dosimetry Solutions 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 Global Dosimetry Solutions, located in Costa Mesa, 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-2015 RADIOLOGICAL SAMPLING STATIONS DISTANCE AND DIRECTION FROM UNIT NO. 1 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° 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 Population 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-2015 RADIOLOGICAL SAMPLING STATIONS DISTANCE AND DIRECTION FROM UNIT NO. 1 Distance Collection Sample Media Location Station Miles Direction Degrees Frequency Remarks Environmental BASF (34) 5.1 ENE 70° Quarterly Apx. 5 mile TLDs LeeHall (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 (HIR) 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 (HIR) 2.0 NNE 28° Quarterly Construction Site (CS) 0.3 E 870 Quarterly Shoreline Hog Island Reserve (HIR) 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) 1.3 NNW 341° Semi-Annually 10
Table 2-1 SURRY-2015 RADIOWGICAL SAMPLING STATIONS DISTANCE AND DIRECTION FROM UNIT NO. 1 Distance Collection Sample Media Location Station Miles Direction Degrees Frequency Remarks Milk Colonial Parkway (CP) 3.7 NNW 336° Monthly Williams (WMS) 27.5 s 175° Monthly Control Location Fpps (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 Lawne's Creek (LC) 2.4 SE 131° 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 (JI) 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
Table 2-2 SURRY-2015 SAMPLE ANALYSIS PROGRAM SAMPLE MEDIA FREQUENCY ANALYSIS LLD* REPORT UNITS Thermoluminescent Quarterly Gamma Dose 2 mR/Std. Month Dosimetry (TLD) 3 Air Iodine Weekly I-131 0.07 pCi/m 3
Air Particulate Weekly Gross Beta 0.01 pCi/m 3
Quarterly (a) Gamma Isotopic pCi/m 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 Co-58 15 Fe-59 30 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 Gamma Isotopic pCi/L Mn-54 15 Co-58 15 Fe-59 30 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 -2015 SAMPLE ANALYSIS PROGRAM 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 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 Co-58 130 Fe-59 260 Co-60 130 Zn-65 260 Cs-134 130 Cs-137 150 Clams Semi-Annually Gamma Isotopic pCi/kg- wet Mn-54 130 Co-58 130 Fe-59 260 Co-60 130 Zn-65 260 Cs-134 130 Cs-137 150 Crabs Annually Gamma Isotopic pCi/kg- wet Mn-54 130 Co-58 130 Fe-59 260 Co-60 130 Zn-65 260 Cs-134 130 Cs-137 150 Footnotes located at end of table.
13
Table 2-2 SURRY-2015 SAMPLE ANALYSIS PROGRAM SAMPLE MEDIA FREQUENCY ANALYSIS LLD* REPORT UNITS Fish Semi-Annually Gamma Isotopic pCi/kg- wet Mn-54 130 Co-58 130 Fe-59 260 Co-60 130 Zn-65 260 Cs-134 130 Cs-137 150 Food Products Annually Gamma Isotopic pCi/kg- wet I-131 60 Cs-134 60 Cs-137 80 Note: This table is not a complete listing of nuclides that can be detected and reported. Other peaks that are are measurable and identifiable, together with the above 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
\
WSW \
ESE SW Legend
- State TLD Sites Figure 1. Surry Radiological Monitoring Locations
Figure 2. Surry Emergency Plan Map e Air Sampling Stations e Nearest Residents e TLD Sampling e Nearest Milk Animal e Nearest Garden Aquatic Samples Original © 1991 by ADC of Alexandria, Inc., 6440 General Green Way, Al exandria, VA 223 12. USED WITH PERMISS ION . No other reproduction may be made without the written permission of ADC .
SSE w
00 e
9 Figure 4.
Air Sampling Stations rLosampling e
9 Nearest Residents NearestMilkAnimal w* .
~@ /"*<~
,. .;, -?" \
'* . ~W:;;JrF ,\
(),11\1 * -: -=:::". ,.:: ""
~ **
e Nearest Garden Crop Samples Original © 1991 by ADC of Alexandria, Inc. , 6440 General Green Way, Alexandria, VA 223 12. USED WITH PER MISS ION. No oth er reproducti on
'\*°':-./ BC
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626)
- .~'fl".-,,,,,.,,.,. .-...)
l ~'* s :~IG*
may be made without th e written permission of ADC.
Figure 5. Surry Emergency Plan Map e Air Sampling Stations e Nearest Residents e TLD Sampling e Nearest Milk Animal e Nearest Garden Aquatic Samples Original © 1991 by ADC of Al exandria, Inc., 6440 General Green Way, Alexandria , VA 22312 . USE D WITH PERM ISS ION . No other reproduction may be made without the written permission of ADC .
Ciro ~'.f
.,._/ .----------'---- ) */
- 3. ANALYTICALRESULTS 3.1 Summary ofResults 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 iri 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.
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TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Surry Power Station, Surry County, Virginia - 2015 Docket No. 50-280-281 Page 1 o'f6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled (Units) Type
!Total No. LLD Mean Range I Distance Name Direction I Mean Range Mean Range Reported Measurements Direct Gamma 164 2 5.7 (152/152) STA-9 0.3 mi 7.8 (4/4) 6.0 (12/12) 0 Radiation (3.4 - 8.2) E (7.3 - 8.2) (5.0 - 7.5)
TLD (mRI Std Month)
Air Gross 416 10 14.7 (359/364) BC 4.5 mi 17.1 (52/52) 15.9 (51/52) 0 Particulate Beta (2.91 - 36.3) SSW (2.94 - 36.3) (3.12 - 32.8)
(1E-3 pCi/m3) --------------------------------------------------------------------
Gamma 32 Be-7 32 130 (28/28) ALL 5.1*mi 165 (414) 141 (4/4) 0 (94.1 - 187) WSW (128 - 187) (136 - 151)
K-40 32 17.2 (5/28) HIR 2.0 mi 22.8 (1/4) <LLD 0 (10.0 - 24.6) NNE (22.8 - 22.8)
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 pq!m3)
Milk Strontium 4 (pCi!Liter)
Sr-89 4 <LLD N/A <LLD <LLD 0 Sr-90 4 1. 78 (2/4) CP 3.7 mi 1. 78 (2/4) <LLD 0 (1.76-1.80) NNW (1.76 - 1.80)
~----*-----------------------~------
Gamma 36 K-40 36 1323 (24/24) EPPS 4.8 ml '1352 (12/12) 1296 (12/12) 0 (1070 - 1570) SSW (1240 - 1570) (1130 - 1430) 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 I
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Surry Power Station, Surry County, Virginia - 2015 Docket No. 50-280-281 Page 2 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled (Units) Type
!Total No. LLD Mean Range IDistance
.Name Direction I Mean Range Mean Range Reported Measurements Food Gamma 3 Products (pCi!kg wet) K-40 3 9090 (3/3) Slade 3.2mi 17800 (1/1) N/A 0 (3830 - 17800) s (17800-17800) 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 K-40 12 88.5 (1/12) cs 0.3mi 88.5 (1/12) N/A 0 (88.5 - 88.5) E . (88.5 - 88.5)
Mn-54 12 15 <LLD N/A <LLD N/A 0 Co-58 12 15 <LLD N/A <LLD N/A 0 I
I Fe-59 12 30 <LLD N/A <LLD N/A ** 0 Co-60 12. 15 <LLD N/A <LLD N/A 0 Zn-65 12 30 <LLD N/A <LLD N/A 0 Nb-95 12 15 <LLD N/A <LLD N/A 0 Zr-95 12 30 <LLD N/A <LLD N/A 0 1-131 12 <LLD N/A <LLD N/A 0 Cs-134 12 15 <LLD N/A <LLD N/A 0 Cs-137 12 18 <LLD N/A <LLD N/A 0 22
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Surry Power Station, Surry County, Virginia - 2015 Docket No. 50"280-281 Page 3 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled (Units) Type
!Total No. LLD Mean Range IDistance Name Direction I Mean Range Mean Range Reported Measurements Well Ba-140 12 60 <LLD N/A <LLD N/A 0 Water (pCi/Liter)
La-140 12 15 <LLD N/A <LLD N/A 0
~--------------------------------------------------------------------
River H-3 8 2000 <LLD N/A <LLD <LLD 0 Water (pCi/uter)
Gamma 24 K-40 24 102 (8/12) SD 0.4 mi 102 (8/12) 103 (3/12) 0 I l (45.4 - 177) NW (45.4 - 177) (68.9 - 167)
I Th-228 24 <LLD SW 4.9 mi 9.95 (2/12) 9.95 (2/12) 0 WNW. (4.69 - 15.2) . (4.69 - 15.2)
Mn-54 24 15 <LLD N/A <LLD <LLD ' 0 i :
Co-58 24 15 <LLD N/A I
<LLD <LLD 0 Fe-59 24 30 <LLD N/A <LLD <LLD 0 Co-60 24 15 <LLD N/A <LLD <LLD 0 Zn-65 24 30 <LLD N/A <LLD <LLD 0 Nb-95 24 .15 <LLD N/A <LLD <LLD 0 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 N/A <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 N/A <LLD <LLD 0 23
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Surry Power Station, Surry County, Virginia - 2015 Docket No. 50-280-281 Page 4 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled (Units) Type
'Total No. LLD Mean Range IDistance Name Direction I Mean Range Mean Range Reported Measurements Silt Gamma 4 (pCilkg dry)
K-40 4 17000 (2/2) CHIC 11.2 mi 19050 (2/2) 19050 (2/2) 0 (12900-21100) WNW (16900-21200) (16900-21200)
Cs-134 4 150 <LLD N/A <LLD <LLD 0 Cs-137 4 180 <LLD CHIC 11.2 mi 205 (2/2) 205 (2/2) 0 WNW (196 - 214) (196 - 214)
Ra-226 4 3260 (1/2) SD 1.3 mi 3260 (1/2) 2260 (1/2) 0 (3260 - 3260) NNW (3260 - 3260) (2260 - 2260)
Th-228 4 1340 (2/2) CHIC 11.2 mi 1365 (2/2) 1365 (2/2) 0 (1110 - 1340) WNW (1270 - 1460) (1270 - 1460)
Th-232 4 1415 (2/2) CHIC 11.2 mi 1460 (2/2) 1460 (2/2) 0 (1320 - 1415) WNW (1130 -1790) (1130 - 1790)'
Shoreline Gamma 4 Sediment (pCilkg dry) K-40 4 6740 (2/2) HIR 0.6 mi 6740 (2/2) 2035 (2/2) 0 (5720 - 7760) N (5720 - 7760) (1640 - 2430)
Cs-134 4 150 <LLD N/A <LLD <LLD 0 Cs-137 4 180 <LLD N/A <LLD <LLD 0 Ra-226 4 1420 (1/2) CHIC 11.2 mi 1639 (2/2) 1639 (2/2) 0 (1420 - 1420) WNW. (927 - 2350) (927 - 2350)
Th-228 4 525 (2/2) CHIC 11.2 mi 850 (2/2) 850 (2/2) 0 (315 - 734) WNW (330 - 1370) (330 - 1370)
Th-232 4 591 (2/2) CHIC 11.2 mi 882 (2/2) 882 (2/2) 0 (444 - 737) WNW (413 - 1350) (413 - 1350)
Fish Gamma 4 ,
(pCilkg wet) ~
K-40 4 1898 (4/4) SD 1.3 mi 1898 (4/4) N/A 0 (1040 - 2910) NNW (1040 - 2910)
Mn-54 4 130 <LLD N/A <LLD N/A 0 Co-58 4 130 <LLD N/A <LLD N/A 0 Fe-59 4 260 <LLD N/A <LLD N/A 0 24
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Suny Power Station, Suny County, Virginia -2015 DocketNo.50-280-281 Page5of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled (Units) Type
!Total No. LLD Mean Range IDistance Name Direction I Mean Range Mean Range Reported Measurements Fish Gamma 4 (pCi/kg wet)
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 Oysters Gamma 6 (pCi/kg wet)
K-40 6 811 (3/6) MP 4.9 mi 955 (1/2) N/A 0 (611 - 955) ESE (955 - 955)
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 <LLD N/A <LLD N/A 0 Zn-65 6 260 <LLD N/A <LLD N/A 0 Cs-134 6 130 <LLD N/A <LLD N/A 0 Cs-137 6 150 <LLD N/A <LLD N/A 0 Clams Gamma 6 (pCilkg wet)
Mn-54 6 130 <LLD N/A <LLD <LLD 0 Co-58 6 130 <LLD N/A <LLD <LLD 0 Fe-59 6 260 <LLD N/A <LLD <LLD 0 25
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Surry Power Station, Surry County, Vrrginia - 2015 Docket No. 50-280-281 Page 6 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled IT otal Mean I Distance I Mean Mean Reported (Units) Type No. LLD 1 Range Name Direction Range Range Measurements Clams Gamma 6 (pCi/kg v.et)
Co-60 6 130 <LLD NIA <LLD <LLD 0 Zn-65 6 260 <LLD NIA <LLD <LLD 0 Cs-134 6 130 <LLD N/A <LLD <LLD 0 Cs-137 6 150 <LLD NIA <LLD <LLD 0 Crabs Gamma (pCilkg v.et)
K-40 1140 (1/1) SD 1.3 mi 1140 (1/1) NIA 0 (1140 - 1140) NNW (1140 -1140)
Mn-54 ' 130 <LLD NIA <LLD N/A 0 Co-58 130 <LLD NIA <LLD N/A 0 Fe-59 260 <LLD NIA <LLD NIA 0 Co-60 130 <LLD N/A <LLD NIA 0 Zn-65 260 <LLD NIA <LLD NIA 0 Cs-134 130 <LLD NIA <LLD NIA 0 Cs-137 150 <LLD NIA <LLD N/A 0 26
3.2 Analytical Results of 2015 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.
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 1-131
- 4. Air Particulates, Quarterly Gamma Spectroscopy
- 5. Cow Milk
- 6. Food Products
- 7. Well Water
- 8. River Water
- 9. Silt
- 10. Shoreline Sediment
- 11. Fish
- 12. Oysters *
- 13. Clams
- 14. Crabs 27
TABLE 3-2: GAMMA EXPOSURE RATE Surry Power Station, Surry County, Vrrginia - 2015 mR/Std Month+/- 2 Sigma Page 1of1 STATION 'v FIRST SECOND THIRD' FOURTH AVERAGE NUMBER QUARTER QUARTER QUARTER QUARTER +/-2SIGMA 02 6.3 +/- 0.8 6.7 +/- 0.4 6.9 +/- 0.8 7.1 +/- 0.6 6.8 +/- 0.7 03 6.2 +/- 0.6 6.4 +/- 0.7 5.5 +/- 1.7 6.4 +/- 0.5 6.1 +/- 0.9 04 5.6 +/- 0.5 5.9 +/- 0.9 . 6.0 +/- 0.5 6.1 +/- 1.1 5.9 +/- 0.4 05 6.2 +/- 1.2 5.8 +/- 1.0 6.7 +/- 0.6 6.4 +/- 0.5 6.3 +/- 0.8 06 5.8 +/- 0.4 6.2 +/- 1.0* 6.5 +/- 0.3 6.2 +/- 0.2 6.2 +/- 0.6 07 6.1 +/- 0.8 5.8 +/- 0.6 6.2 +/- 0.4 6.3 +/- 0.5 6.1 +/- 0.4 08 5.5 +/- 0.8 5.7 +/- 1.2 5.7 +/- 0.3 5.8 +/- 0.4 5.7 +/- 0.3 09 7.5 +/- 0.7 7.3 +/- 1.1 7.8 +/- 0.7 7.8 +/- 0.5 7.6 +/- 0.5 10 5.7 +/- 0.6 5.8 +/- 1.2 6.4 +/- 0.. 8 6.1 +/- 0.4 6.0 +/- 0.6 11 5.2 +/- 0.5 5.4 +/- 0.9 5.2 +/- 0.1 5.6 +/- 0.3 5.4 +/- 0.4 12 5.2 +/- 0.6 5.4 +/- 0.5 5.8 +/- 0.4 5.6 +/- 0.3 5.5 +/- 0.5 13 5.9 +/- 0.5 6.3 +/- 0.8 6.5 +/- 0.6 6.4 +/- 0.4 6.3 +/- 0.5 14 5.7 +/- 0.5 5.9 +/- 0.7 5.9 +/- 0.2 6.0 +/- 0.6 5.9 +/- 0.3 15 5.6 +/- 0.7 5.9 +/- 1.0 6.2 +/- 0.6 6.5 +/- 0.5 6.1 +/- 0.8 16 5.0 +/- 1.0 5.8 +/- 0.3 3.4 +/- 1.0 5.7 +/- 0.8 5.0 +/- 2.2 18 4.5 +/- 0.3 4.6 +/- 0.6 4.9 +/- 0.4 4.9 +/- 0.5 4.7 +/- 0.4 19 4.8 +/- 0.6 5.3 +/- 0.6 5.2 +/- 0.6 5.3 +/- 0.4 5.2 +/- 0.5 20 4.2 +/- 0.5 4.9 +/- 0.4 4.8 +/- 0.3 5.0 +/- 0.6 4.7 +/- 0.7 21 4.5 +/- 0.2 4.9 +/- 0.7 5.4 +/- 0.3 5.1 +/- 0.4 5.0 +/- 0.8 22 3.9 +/- 0.4 4.4 +/- 0.4 4.4 +/- 0.3 4.7 +/- 0.9 4.4 +/- 0.7 23 5.6 +/- 0.3 6.2 +/- 0.9 6.2 +/- 0.4 6.1 +/- 0.7 6.0 +/- 0.6 24 4.6 +/- 0.7 5.0 +/- 0.5 5.1 +/- 0.5 5.0 +/- 0.3 4.9 +/- 0.4 25 6.0 +/- 1.0 5.5 +/- 0.1 6.2 +/- 0.4 6.3 +/- 0.5 6.0 +/- 0.7 26 5.2 +/- 0.3 5.4 +/- 0.7 5.1 +/- 0.5 5.0 +/- 0.2 5.2 +/- 0.3 27 4.7 +/- 0.4 5.0 +/- 0.4 5.1 +/- 0.3 4.7 +/- 0.4 4.9 +/- b.4 28 4.4 +/- 0.3 4.7 +/- 0.4 5.0 +/- 0.5 4.6 +/- 0.3 4.7 +/- 0.5 29 4.1 +/- 0.4 4.4 +/- 0.6 4.6 +/- 0.5 4.5 +/- 0.3 4.4 +/- 0.4 30 4.4 +/- 0.4 4.8 +/- 0.5 4.8 +/- 0.6 4.9 +/- 0.4 4.7 +/- 0.4 31 4.0 +/- 0.8 4.3 +/- 0.4 4.3 +/- 0.6 4.1+/-0.3 4.2 +/- 0.3 32 4.5 +/- 0.4 5.7 +/- 1.3 5.2 +/- 0.4 5.3 +/- 0.3 5.2 +/- 1.0 33 4.5 +/- 0.5 5.7 +/- 1.6 4.8 +/- 0.7 4.8*+/- 0.5 5.0 +/- 1.0 i : 34 4.9 +/- 0.5 5.4 +/- 0.5 5.5 +/- 0.6 5.5 +/- 0.5 5.3 +/- 0.6 35 6.0 +/- 0.5 5.8 +/- 1.4 6.4 +/- 0.3 6.5 +/- 0.5 6.2 +/- 0.7 36 5.6+/-0.1 5.9 +/- 1.4 6.3 +/- 0.6 6.6 +/- 0.5 6.1 +/- 0.9 37 4.9 +/- 0.5 5.3 +/- 0.3 5.3 +/- 0.5 5.2 +/- 0.4 5.2 +/- 0.4 38 6.5 +/- 0.8 6.7 +/- 0.6 6.6 +/- 0.4 6.7 +/- 0.7 6.6 +/- 0.2 39-C 4.7 +/- 0.7 5.0 +/- 0.5' 5.1 +/- 0.2 5.2 +/- 0.6 5.0 +/- 0.4 40-C 5.1 +/- 0,3 5.5 +/- 0.3 5.4 +/- 0.4 5.4 +/- 0.3 5.4 +/- 0.3 41-C 6.9 +/- 1.3 7.3 +/- 0.6 7.3 +/- 0.4 7.5 +/- 0.7 7.3 +/- 0.5 42 5.1 +/- 0.5 5.4 +/- 0.2 5.7 +/- 0.3 5.2 +/- 0.5 5.4 +/- 0.5 43 4.4 +/- 0.3 4.7 +/- 0.5 . 4.9 +/- 0.6 4.9 +/- 0.3 4.7 +/- 0.5 28
TABLE 3-3: GROSS BETA CONCENTRATION IN FILTERED AIR Sutry Nuclear Power Station, Surry County, Virginia - 2015 1.0E-3 pCi/m3 +/- 2 Sigma Page 1 of2 COLLECTION SAMPLING LOCATIONS DATE SS HIR BC ALL CP BASF FE NN-C January 06 17.5 +/- 3.16 14.6 +/- 3.03 25.5 +/- 3.63 17.3 +/- 3.16 15.1 +/- 3.04 17.7 +/- 3.15 22.2 +/- 3.38 19.8 +/- 3.22 January 13 14.3 +/- 2.99 12.2 +/- 2.92 18.7 +/- 3.26 14.0"+/- 2.98 14.0 +/- 2.99 15.4 +/- 8.76 16.2 +/- 3.09 18.0 +/- 3.13 January 20 16.4 +/- 2.81 13.1 +/- 2.63 20.4 +/- 3.07 19.5 +/- 2.97 15.0 +/- 2.75 A 14.9 +/- 2.71 18.5 +/- 2.92 January 26 8. 70 +/- 2.93 9.19 +/- 2.97 6.70 +/- 2.86 9.72 +/- 2.98 8.29 +/- 2.92 12.8 +/- 3.14 11.4 +/- 3.07 10.3 +/- 3.03 February 03 8.86 +/- 2.30 8.49 +/- 2.29 12.7 +/- 2.55 10.1 +/- 2.37 6.12+/-2.16 11.8 +/- 2.46 9.87 +/- 2.33 11.0 +/- 2.42 February 09 12.9 +/- 3.09 14.6 +/- 3.21 23.3 +/- 3.70 17.2 +/- 3.32 16.4 +/- 3.32 16.1 +/- 3.23 18.8 +/- 3.40 18.4 +/- 3:36 February 16 14.6 +/- 2.96 12.2 +/- 2.88 18.8 +/- 3.22 14.7 +/- 2.95 14.4 +/- 2.96 14.3 +/- 2.93 16.3 +/- 3.04 16.6 +/- 3.04 February 23 21.9 +/- 3.23 20.2 +/- 3.18 23.2 +/- 3.34 28.9 +/- 3.54 22.9 +/- 3.29 24.4 +/- 3.32 26.0 +/- 3.40 28.4 +/- 3.56 March 02 20.0 +/- 3.07 15.1 +/- 28.6 21.5 +/- 3.18 19.3 +/- 3.02 15.2 +/- 2.85. 20.6 +/- 3.09 19.3 +/- 3.03 25.1 +/- 3.29 March 09 15.1 +/- 2.83 13.0 +/- 2.75 20.0 +/- 3.15 14.3 +/- 2.78 14.4 +/-. 2.80 15.2 +/- 2.83 16.4 +/- 2.89 15.7 +/- 2.85 March 16 8.78 +/- 2.56 7.86 +/- 2.53 19.1+/-3.19 11.8 +/- 2.71 8.89 +/- 2.55 11.0 +/- 2.66 12,0 +/- 2.72 12.5 +/- 2.77 March 24 10.8 +/- 2.37 10.7 +/- 2.40 18.3 +/- 2.84 11.1 +/- 2.38 9.91 +/- 2.32 9.16+/-2.26 12.9 +/- 2.48 14.0 +/- 2.59 March 31 10.0 +/- 2.87 9.47 +/- 2.81 20.1 +/- 3.41 14.3 +/- 2.99 10.2 +/- 2.82 12.9 +/- 2.92 11.9 +/- 2.87 16.6 +/- 3.15 Qtr. Avg. +/- 2 s.d. 13.8 +/- 8.70 12.4 +/- 6.74 19.1 +/- 9.67 15.6 +/- 10.3 13.1 +/- 8.78 15.1 +/- 8.49 16.0 +/- 9.31 17.3 +/- 10.3 April 07 10.5 +/- 2.73 12.3 +/- 2.88 21.1 +/- 3.40 12.6 +/- 2.82 10.6 +/- 2.78 11.0 +/- 2.72 12.7 +/- 2.83 15.6 +/- 2.99 April 14 11.0 +/- 2.60 13.0 +/- 2.75 21.8 +/- 3.27 14.0 +/- 2.74 2.89 +/- 2.05 13.5 +/- 2.75 14.1 +/- 2.79 17.4 +/- 2.97 April 21 .8.86 +/- 2.56 8.46 +/- 2.58 13.0 +/- 2.89 9.57 +/- 2.57 *10.3 +/- 2.65 8.20 +/- 2.51 9.33 +/- 2.59 10.4 +/- 2.65 April 28 8.25 +/- 2.39 7.46 +/- 2.38 *17.3 +/- 2.98 9.81 +/- 2.47 10.7 +/- 2.56 10.6 +/- 2.53 10.5 +/- 2.54 10.3 +/- 2.51 May 05 6.37 +/- 2.46 4.03 +/- 2.34 12.1 +/- 2.87 7.21 +/- 2.48 8.63 +/- 2.63 6.38 +/- 2.44 7.25 +/- 2.52 7.19 +/- 2.50 May 12 8.66 +/- 2.53 9.29 +/- 2.61 15.1 +/- 2.95 9.49 +/- 2.55 10.1 +/- 2.64 8.83 +/- 2.53 8.95 +/- 2.55 11.5 +/- 2.68 May 19 17A +/- 3.10 14.7 +/- 3.00 24.4 +/- 3.53 15.8 '+/- 3.00 17.9 +/- 3.13 15.9 +/- 3.05 17.7 +/- 3.11 19.0 +/- 3.16 May 26 18,7 +/- 2.94 10.7 +/- 2.76. 15 ..1 +/- 3.00 11:6 +/-* 2.77 16.0 +/- 3.01 14.1 +/- 2.89 14.2 +/- 2.89 18.9 +/- 3.13 June .02 13.0 +/- 2.79 11.2 +/- 2.72 12.5 +/- 2.80 16.0 +/- :2.95 12.4 +/- 2.75 12.7 +/- 2.75 10.8 +/- 2.62. 15.3 +/- 2.89 June 09 8.55 +/- 2.32 7.04 +/- 2.25 7.60 +/- 2.27 5.76 +/- 2.07 6.84 +/- 2.18 8.50 +/- 2.30 6.50+/-2.15 8.20 +/- 2.27 June 16 14.9 +/- 2.77 10.1 +/- 2.51 13.1 +/-2.69 12.4 +/- 2.60 12.4 +/- 2.60 13.{) +/- 2.67 14.7 +/- 2.73 14.9 +/- 2.14 June 23 12.3 +/- 2.52 8.92 +/- 2.32 14.5 +/- 2.68 16.3 +/- 2.75 12.7 +/- 2.54 12.3 +/- 2.52 14.5 +/- 2.66 15.2 +/- 2.70 June 30 5.46 +/- 2.43 3.51 +/- 2.34 9.29 +/- 2.72 7.15 +/- 2.54 9.06 +/- 2.67 9.32 +/- 2.66 5.63 +/- 2.43 7.85 +/- 2.54 Qtr. Avg. +/- 2 s.d. 11.1 +/- 8.11 9.29 +/- 6.55 15.1 +/- 9.78 11.4 +/- 7.09 11.5 +/- 7.59 11.1 .+/- 5.60 11.3 +/- 7.37 13.2 +/- 8.36 A: No power at sampling station April 14: OP <Minim um Detectable Activity 29
-- __ ,,. ~
TABLE 3-3: GROSS BETA CONCENTRATION IN FILTERED AIR Surry Nuclear Power Station, Surry County, Virginia - 2015 1.0E-3 pCi/ni3 +/- 2 Sigma Page 2 of2 COLLECTION SAMPLING LOCATIONS DATE SS HIR BC ALL CP BASF FE NN July 07 13.0+/-2.70 9.28 +/- 2.49 13.3 +/- 2.74 12.6 +/- 2.69 12.8 +/- 2.67 11.8+/-2.61 11.9+/-2.66 A July 14 12.7 +/- 2.57 9.59 +/- 2.41 15.9 +/- 2.79 14.5 +/- 2.68 13.4 +/- 2.62 14.4 +/- 2.69 11.0 +/- 2.48 16.2 +/- 2.82 July 21 12.5 .+/- 2.48 9 ..32 +/- 2.30 11.4 +/- 2.43 10.3 +/- 2.31 11.0 +/- 2.36 10.3 +/- 2.33 12.4 +/- 2.45 13.1 +/- 2.50 July 28 13.1+/-2.90 10.0 +/- 2.75 13.9 +/- 2.96 11.0+/-2.74 9.56 +/- 2.67 9.88 +/- 2. 71 12.2 +/- 2.83 13.2 +/- 2.86 August 04 17.7 +/- 3.06 15.0 +/- 2.96 20.3 +/- 3.22 20.9 +/- 3.21 23.4 +/- 3.36 20.8 +/- 3.23 19.9 +/- 3.16 22.2 +/- 3.28 August 11 9.03 +/- 2.54 8.93 +/- 2.57 11.1 +/- 2.69 9.69 +/- 2.56 13.4 +/- 2.79 11.5+/-2.65 10.4 +/- 2.61 10.3 +/- 2.59 August 18 14.4 +/- 2.84 10.8 +/- 2.67 15.2 +/- 2.93 12:5 +/- 2.14 14.5 +/- 2.88 .15.5 +/- 2.91 15.5 +/- 2.91 16.3 +/- 2.94 August 25 18.7 +/- 3.24 7.64 +/- 2.67 20.4 +/- 3.38 17.0 +/- 3.16 19.6 +/- 3.31 18.8 +/- 3.25 16.5 +/- 3.12 19.8 +/- 3.29 September01 16.0 +/- 2.93 17.9 +/- 3.04 18. 1 +/- 3.11 20.4 +/- 3.20 21.3 +/- 3.23 19.0 +/- 3.10 1.9.2 +/- 3.12 14.9 +/- 2.89 September 07 27.6 +/- 3.93 28.1 +/- 3.98 3~.5 +/- 4.23 32.2 +/- 4.15 30.8+/-4.10 27.4 +/- 3.91 30.6 +/- 4.06 25.5 +/- 3.83 September 15 16.3 +/- 2.71 15.2 +/- 2.65 15.8 +/- 2.74 15.9 +/- 2.68 16.7 +/- 2.75 14.4 +/- 2.61 16.1 +/- 2.70 16.5 +/- 2. 71 September 22 26.8 +/- 3.41 24.0 +/- 3.32 24.4 +/- 3.36 29.1 +/- 3.56 23.4 +/- 3.30 24.4 +/- 3.34 25.8 +/- 3.39 26.0 +/- 3.39 September 29 11.9+/-2.54 9.29 +/- 2.40 9.91 +/- 2.47 8.45 +/- 2.32 8.70 +/- 2.35 9.56 +/- 2.39 10.5 +/- 2.45 14.0 +/- 2.64 Qtr. Avg. +/- 2 s.d. 16.1 +/- 11.1 13.5 +/- 12.8 17.1 +/- 12.4 16.5 +/- 14.8 16.8 +/- 13.0 16.0 +/- 11.5 16.3 +/- 12.4 17.3 +/- 10.0 October 06 3.30 +/- 1.99 2.45 +/- 1.93 2.94 +/- 1.98 2.91 +/- 1.91 2.45 +/- 1.93 2.59 +/- 1.88 3.63 +/- 2.02 3.12+/-1.92 October 13 14,.8 +/- 2.86 14.1 +/- 2.86 15.7 +/- 2.98 15~8 +/- 2.93 16.5 +/- 2.99 14.1 +/- 2.85 14.7 +/- 2.88 14.8 +/- 2.88 October 20 16.5+/-3.18 15.7. +/- 3.16 21.7 +/- 3.49 18.9 +/- 3.29 17.4 +/- 3.26 18.4 +/- 3.27 16.2 +/- 3.15 17.6 +/- 3.24 October 27 19.3 +/- 3.42 20.0 +/- 3.45 21.4 +/- 3.56 21.1+/-3.47 21.4 +/- 3.52 16.7 +/- 3.25 17.8 +/- 3.31 15.9 +/- 3.22 November 03 15.3 +/- 2.87 16.7 +/- 2.94 16.1+/-2.94 16.9 +/- 2.93 15.9 +/- 2.90 16.1 +/- 2.88 15.5 +/- 2.85 17.1 +/- 2.93 November 10 15.6 +/- 2.98 15.7 +/- 2.98 17.5. +/- 3.10 18.4 +/- 3.09 17.4 +/- 3.10 13.4 +/- 2.84 15.5 +/- 2.96 16.4 +/- 2.99 November 17 18.2 +/- 3.19 13.0 +/- 2.94 16.7 +/- 3.17 20.5 +/- 3.30 15.6+/-3.11 17.4 +/- 3.14 18.8 +/- 3.21 17.3 +/- 3.13 November 24 14.1 +/-2.70 12.0 +/- 2.56 14.3 +/- 2.73 14.3 +/- 2.69 11.3 +/- 2.53 11.0 +/- 2.49 11.0 +/- 2.48 13.7 +/- 2.64 December 01 14.0 +/- 2.95 11.9+/-2.85 13.9 +/- 2.98 1.3.2 +/- 2.89 11.4 +/- 2.85 13.7 +/- 2.93 13.0 +/- 2.88 14.0 +/- 2.92 December 08 24.3 +/- 3.18 21.8 +/-3.07 21.9+/-3.11 25.9 +/- 3.28 25.2 +/- 3.27 22.6 +/- 3.12 25.5 +/- 3.25 23.9 +/- 3.17 December 15 29.6. +/- 3.50 29.9 +/- 3.54 36.3 +/- 3.84 30.6 +/- 3.57 30.3 +/- 3.57 29.7 +/- 3.53 30.1 +/- 3.54 32.8 +/- 3.62 December 22 11.8 +/- 2.54 12.6 +/- 2.59 . 13.7 +/- 2.67 13.0 +/- 2.61 11.7 +/- 2.57 11.5 +/- 2.52 12.8 +/- 2.59 13.0 +/- 2.60 December 29 5.38 +/- 2.09 7.62 +/- 2.26 7.19+/-2.24 6.32+/-2.16 7.69 +/- 2.28 5.89+/-2.12 7.17+/-2.20 7.69 +/- 2.23 Qtr. Avg. +/- 2 s.d. 15.6 +/- 13.8 15.9 +/- 11.6 16.9 +/- 15.9 16.8 +/- 14.7 16.8 +/- 12.7 15.9 +/- 12.1 15.5 +/- 13.8 15.9 +/- 14.2 Ann. Avg. +/- 2 s.d. 14.1 +/- 1.1.1 12.7 +/- 10.6 17.1 +/- 12.2 15.0 +/- 12.6 14.6 +/- 11.3 14.5 +/- 10.. 3 14.8 +/- 11.5 15.9 +/- 11.2 A: No power at sam piing station October.06: HIR, CP and BASF <Minimum Detectable Activity 30
1'.ABLE 3-4: IODINE-131 CONCENTRATION IN FILTERED AIR Suny Power Station, Suny County, Vrrginia- 2015 1.0E-3 pCi/m3 +/- 2 Sigma Page 1 of2 COLLECTION SAMPLING LOCATIONS DATE SS HIR .BC ALL CP BASF FE NN*C January 06 9.54 +/- 20.8 9.62 +/- 21.0 9.87 +/- 21.5 9.57 +/- 20.9 -16.6 +/- 17.2 -16.3 +/- 16.9 -16.3 +/- 16.9 -16.0 +/- 16.6 January 13 -2.0.0 +/- 41.6 -2.03 +/- 42.3 -2.05 +/- 42.6 -2.00 +/- 41.6 18.7 +/- 22.9 29'2 +/- 35.7 18.5 +/- 22.6 18.0 +/- 22.0 January 20 -1.33 +/- 20.3 -1.34 +/- 20.4 -1.35 +/- 20.7 -1.32 +/- 20.1 -4.63 +/- 19.6 A -4.54 +/- 19.1 -4.54 +/- 19.1 January 26 9~39 +/- 36.5 9.42 +/- 36.6" 9.59 +/- 37.3 9.31 +/- 36.1 -7.08 +/- 32,3 -6.95 +/- 31.7 -6.95 +/- 31.7 -7.00 +/- 31.9 February 03 40.8 +/- 33.6 41.0 +/- 33.!3 41,5 +/- 34.2 40.6 +/- 33.4 9.55 +/- 38.6 9.39 +/- 37.9 9.26 +/- 37.4 9.35 +/- 37.8 February 09 20.3 +/- 15.5 20.5+/-15.6 20.6 +/- 15.7 20.1 +/- 15.3 -1.28 +/- 16.0 -1.24 +/- 15.5 -1.25 +/- 15.6 -1.24 +/- 15.4 February 16 4.58 +/- 22.3 4.69 +/- 22.8. 4.66 +/- 22.6 4.55 +/- 22.1 -7.10 +/- 16.8 -7.03 +/- 16.6 -7.02 +/- 16.6 -6.92 +/- 16.4 February 23 9.26 +/- 18.2 9.47 +/- 18.6 9.45 +/- 18.6 9.18 +/- 18.1 -0.84 +/- 18.4 -0.82 +/- 18.1 -0.82 +/- 18.1 -0.84 +/- 18.3 March 02 4.04 +/- 21.1 4.13+/-21.6 4.10+/-21.4 4.00 +/- 20.9 2.68 +/- 18.5 2.62 +/- 18.1 2.62 +/- 18.1 2.59 +/- 17.9 March 09 * -12.7 +/- 20.6 -13.0 +/- 21.0 -13.1 +/- 21.1 -12.6 +/- 20.4 7.52 +/- 17.7 7.46 +/- 17.6 7.45 +/- 17.5 7.36 +/- 17.3 March 16 -17.4 +/- 31.t -17.7 +/- 31.5 -17.9 +/- 32.0 -17.2 +/- 30.6 8.69 +/- 25.2 8.60 +/- 24.9 8.58 +/- 24.9 8.61 +/- 25.0 March 24 -4:01 +/- 23.6 -4.09 +/- 24.0 -4.15 +/- 24.4 -3.98 +/- 23.4 -14.0 +/- 16.4 -13.9 +/- 16.2 -13.9 +/- 16.2 -14.1 +/- 16.5 March 31 5.12 +/- 12.6 5.17+/-12.8 5.24 +/- 12.9 4.97 +/- 12.3 6.91 +/- 16.5 6.76 +/- 16.1 6.75 +/- 16.1 6.78 +/- 16.2 April 07 8.85 +/- 33.8 9.05 +/- 34.6 9.19 +/- 35.1 8.68 +/- 33.2 -20.3 +/- 45.8 -23.3 +/- 44.5 -23.3 +/- 44.5 -23.1 +/- 44.2 April 14 -19.8 +/- 40.8 -20.1 +/- 41.5 . -20.4 +/- 42.1 -19.3 +/- 39.9 42.2 +/- 35.7 41.7 +/- 35.4 41.7 +/- 35.3 41.7 +/- 35.3 .
April 21 6.96 +/- 31.0 7.08 +/- 31.5 7.21 +/- 32.1 6.82 +/- 30.4 0.10 +/- 24.8 -38.4 +/- 46.6 -38.5 +/- 46.7 -38.3 +/- 46.4 April 28 -5.57 +/- 9.88 8.01 +/- 14.9 8.09 +/- 15.0 7.73 +/- 14.3 -10.8 +/- 19.1 -10.6 +/- 18.9 -10.7 +/- 19.0 -10.6 +/- 18.8 May 05 2.50 +/- 33.7 2.55 +/- 34.3 2.57 +/- 34.6 2.45 +/- 33.1 -8.84 +/- 31.4 -8.65 +/- 30.7 -8.72 +/- 30.9 -8.64 +/- 30.7 May 12 -15.6 +/- 17.2 -15.9 +/- 17.5 -16.0 +/- 17.6 -15.3 +/- 16.9 2.58 +/- 13.0 2.53 +/- 12.8 2.54 +/- 12.8 2.52 +/- 12.7 May 19 4.83 +/- 30.9 4.92 +/- 31.4 5.03 +/- 32.2 4.78 +/- 30.5 6.07 +/- 20.2 6.13 +/- 20.4 6.02 +/- 20.0 5.98 +/- 19.9 May 26 -6.20 +/- 14.6 -6.31 +/- 14.9 -2:45 +/- 5.77 -6.18 +/- 14.6 -4.99 +/- 14.8 -4.94 +/- 14.7 -4.93 +/- 14.7 -4.90 +/- 14.6 June 02 2.93 +/- 11.9 2.97 +/- 12.1 2:99 +/- 12.1 2.91 +/- 11.8 -9.64 +/- 17.1 -9.55 +/- 17.0 -9.45 +/- 16.8 -9.48 +/- 16.9 June 09 20.2 +/- 38.4 20.7 +/- 39.3 20.4 +/- 38.8 8.69 +/- 16.5 -2.85 +/- 36.1 -2.85 +/- 36.1 -2.83 +/- 35.8 -2.82 +/- 35.7 June 16 -15.9 +/- 24.3 -16.0 +/- 24.5 ~16.0 +/- 24.5. -15.6 +/- 23.9 18.6 +/- 26.4 18.6 +/- 26.3 18.5 +/- 26.2 18.4 +/- 26.1 June 23 3.87 +/- 11.5 3.91 +/- 11.6 3.91 +/- 11.6 1.49 +/- 4.41 0.71 +/- 14,7 0.71 +/- 14.7 0.71 +/- 14.7 0.71 +/- 14.7 June 30 -7.61 +/- 23.2 -7.72 +/- 23.5 -7.78 +/- 23.7 3.77 +/- 25.4 3.78 +/- 25.5 3.73 +/- 25.1 3.71 +/- 25.0 1.29 +/- 8.73 A: No power at sampling station
'31
TABLE 3-4: IODINE-131 CONCENTRATION IN FILTERED AIR Surry Power Station, Surry County, Virginia - 2015 1.0E-3 pCi/m3 +/- 2 Sigma Page2 of2 COLLECTION SAMPLING LOCATIONS DATE SS HIR BC ALL CP - BASF FE NN-C July 07 15.2 +/- 37.8 15.4 +/- 38.2 15.4 +/- 38.3 15.4 +/- 38.2 -22.7 +/- 38.5 -22.7 +/- 38.5 -23.3 +/- 39.2 A July 14 -3.97 +/- 14.6 -4.04 +/- 14.9 -4.03 +/- 14.9 -3.96 +/- 14..6 14.8 +/- 24.4 14.8 +/- 24.5 6.22 +/- 10.3 15.0 +/- 24.8 1
July 21 10.4 +/- 22.0 4.13 +/- 8.69. . 10.6 +/- 22.3 10.3 +/- 21.6 -14.9 +/- 21.2 -15.0 +/- 21.3 -14.9 +/- 21.2 -14.8 +/- 21.1 July 28 -4.38 +/- 10.8 -4.43 +/- 10.9 -4.42 +/- 10.9 -4.30 +/- 10.6 13.5 +/- 17.7 13.6 +/- 17.8 . 13.5 +/- 17.7 13.3 +/- 17.5 August 04 -8.62 +/- 23.8 -8.76 +/- 24.2 -8.71 +/- 24.0 -8.54 +/- 23.6 10.1 +/- 18.6 10.1 +/- 18.6 9.93 +/- 18.3 9.89 +/- 18.3 August 11 -2.94 +/- 23.1 -2.99 +/- 23.5 -2.96 +/- 23.3 -2.18 +/- 30.0 -2.19 +/- 30.1 .-0.90 +/- 12.4 -2.17 +/- 29.8 -2.14 +/- 29.5 August 18 -0.72 +/- 24.3 -0.73 +/- 24.7 -0.73 +/- 24.8 -0.72 +/- 24.3 5.57 +/- 25.2 5.49 +/- 24.9 5.47 +/- 24.8 5.42 +/- 24.6 August 25 -27.8 +/- 20.9 -28.3 +/- 21.3 -28.5 +/- 21.4 -27.8 +/- 20.9 5.93 +/- 12.4 5.89 +/- 12.3 5.83 +/- 12.2 5.81 +/- 12.2 September 01 -3.91 +/- 17.1 -3.92 +/- 17.2 -4.03 +/- 17.7 -3.97 +/- 17.4 -19.1 +/-25.8 -18.9 +/- 25.6 -19.0 +/- 25.6 -18.9 +/- 25.5 September 07 11.8+/-28.0 11.9 +/- 28.2 12.1 +/- 28.8 11.8+/-28.0 -1.21 +/- 25.8 -1.19 +/- 25.4 -1.19 +/- 25.4 -1.19 +/- 25.4 September 15 14.5 +/- 18.7 . 14.4 +/- 18.7 14.8 +/- 19.2 14.4 +/- 18.6 -7.50 +/- 15.3 -7.42 +/- 15.1 -7.41 +/- 15.1 -7.36 +/- 15.0 September 22 6.24 +/- 15.8 6.35 +/- 16.1 6.41 +/- 16.2 6.33 +/- 16.0 7.77 +/- 17.6 7.72 +/- 17.5 7.68 +/- 17.4 7.59 +/- 17.2 September 29 -1.05 +/- 14.7 -1.06 +/- 14.8 -1.07 +/- 15.0 -1.04 +/- 14.6 -3.89 +/- 14.8 -3.85 +/- 14.6 . -3.83 +/- 14.6 -3.77 +/- 14.3 October 06 3.94 +/- 19.5 3.96 +/- 19.6 3.97 +/- 19.6 3.82 +/- 18.8 33.1 +/- 29.6 31.8 +/- 28.4 32.9 +/- 29.4 31.6 +/-'28.3 October 13 -24.2 +/- 22.7 -24.5 +/- 23.0 -24.8 +/- 23.3 -24.2 +/- 22.7 8.17 +/- 17.2 8.10 +/- .17.0 8.09 +/- 29.7 8.01 +/- 16.8 October 20 5.32 +/- 30.1 5.34 +/- 30.2 5.43 +/- 30.7 5.28 +/- 2.98 5.43 +/- 20.2 5.35 +/- 19.9 5.32 +/- 19.8 5.33 +/- 19.8 October 27 6.16 +/- 24.4 6.15 +/- 24.3 6.24 +/- 24.7 3.16+/-19.2 3.19 +/- 19.4 1.22 +/- 7.37 3.13 +/- 19.0 3.11 +/- 18.9 November 03 10.0 +/- 36.3 9.96 +/- 36.0 10.1 +/- 36.5 9.83 +/- 35.6 2.85 +/- 34.1 2.80 +/- 33.5 2.80 +/- 33.5 2.79 +/- 33.3 November 10 0.01 +/- 26.9 0.01 +/- 26.9 0.01 +/- 27.2 5.85 +/- 16.2 14.3 +/- 39.5 14.0 +/- 38.6 13.9 +/- 38.5 13.8 +/- 38.1 November 17 -4.95 +/- 16.4 -4.99 +/- 16.5 -5.06 +/- 16.7 -4.96 +/- 16.4 -20.5 +/- 32.2 -19.8 +/- 31.2 -19.9 +/- 31.3 -19.7+/-31.1 November24 -29.4 +/- 29.5 -29.1 +/- 29.2 -29. 7 +/-' 29.8 5.40 +/- 18.9 5.45 +/- 19.0 5.36 +/- 18.7 2.07 +/- 7.22 5.32 +/- 18.6 December01 -5.24 +/- 33~7 -5.26 +/- 33.9 -5.29 +/- 34.1 -1.09 +/- 31.6 -1.12 +/- 32.4 -1.09 +/- 31.5 -1.08 +/- 31.4 -0.45 +/- 13.0 .
December 08 -7.71 +/- 24.8 -7.78 +/- 25.0 -7.89 +/- 25.3 -7.81 +/- 25.1 -7.14 +/- 38.9 -7.07 +/- 38.6 -6.99 +/- 38.1 _-6.96 +/- 38.0 December 15 12.3 +/- 39.4 12.4 +/- 39.8 12.5 +/- 40:1 12.4 +/- 39.7 -16.9 +/- 30.0 ~16.7 +/- 29.7 -16.7 +/- 29.6 -16.3 +/- 28.9 December22 -8.14 +/- 27.1 -8.14 +/-' 27.1 -8.19 +/- 27.3 27.4 +/- 25.1 27.9 +/- 25.6 27.2 +/- 25.0 14.9 +/- 13.7 26.9 +/- 24.7 December29 9.17 +/- 33.7 9.24 +/- 33.9 9.28 +/- 34.1 14.2 +/- 23.0 14.4 +/- 23.2 14.1 +/- 22.7 5.42 +/- 8.75 13.8 +/- 22.3 A: No power at sampling station -
32
TABLE 3-5: GAMMA EMITTER CONCENTRATION IN FILTERED AIR Surry Power Station, Surry County, Virginia - 2015 1.0E-3 pCi/m3 +/- 2 Sigma Page 1 ofl SAMPLING FIRST SECOND THIRD FOURTH AVERAGE LOCATIONS NUCLIDE QUARTER QUARTER QUARTER QUARTER +/- 2 SIGMA SS Cs-134 0.19 +/- 0.87 0.27 +/- 0.81 -0.23 +/- 0.84 0.53 +/- 0. 74 Cs-137 -1.20 +/- 0.73 0.65 +/- 0.86 -0.73 +/- 0.89 0.17 +/- 0.81 Be-7 115 +/- 32.8 126 +/- 30.2 141 +/- 46.2 104 +/- 24.2 122 +/- 31.6 HIR Cs-134 0.22 +/- 0.98 0.54 +/- 0. 77 0.49 +/- 0.68 1.62 +/- 0.94 Cs-137 0.39 +/- 0.90 -0.41 +/- 0.67 0.26 +/- 0.68 -0.23 +/- 0.90 Be-7 94.1 +/- 38.9 111 +/- 27.8 143 +/- 33.6 118 +/- 22.7 117+/-40.6 K-40 22.8 +/- 13.3 22.8 +/- 13.3 BC Cs-134 0.83 +/- 0.97 0.63 +/- 1.26 0.08 +/- 0.85 1.25 +/- 1.35 Cs-137 0.74 +/- 0.83 0.00 +/- 1.39 0.72 +/- 0.83 0.04 +/- 1.16 Be-7 124 +/- 33.7 153 +/- 44.1 108 +/- 35.8 120 +/- 42.1 126 +/- 38.2 ALL Cs-134 0.05 +/- 0.92 -0.91 +/- 0.75 0.27 +/- 0.92 -0.94 +/- 0.91 Cs-137 0.13 +/- 0.71 -0.01 +/- 0.51 -0.36 +/- 0.64 -0.35 +/- 0.71 Be-7
- 128 +/- 48.8 186 +/- 36.6 187 +/- 40.5 159 +/- 28.6 165 +/- 55.7 K-40 14.3 +/- 11.9 14.3 +/- 11.9 CP Cs-134 0.25 +/- 0~95 0.90 +/- '1.08 0.75 +/- 0.81 -0.26 +/- 0.85 Cs-137 0.20 +/- 0.77 -0.05 +/- 1.10 -0.18 +/- 0.78 0.29 +/- 0.77 Be-7 108 +/- 30.1 115 +/- 39.4 122 +/- 30.3 103 +/- 25.0 112 +/- 16.6
! I K-40 14.3 +/- 14.0 24.6 +/- 12.2 19.5 +/- 14.6 BASF Cs-134 0.10 +/- 0.78 0.36 +/- 0.69 -0.63 +/- 1.24 0.27 +/- 1.31 Cs-137 -0.10 +/- 0.71 -0.33 +/- 0.56 1.32 +/- 1.32 -0.11 +/- 0.98 Be-7 133 +/- 33:5 98.0 +/- 25.6 128 +/- 54.7 105 +/- 33.0 116 +/- 34.2 K-40 9.99 +/- 7.37 9.99 +/- 7.37 FE Cs-134 -0.17 +/- 0.90 0.99 +/- 0.81 0.49 +/- 0.85 0.60 +/- 0. 76 Cs-137 -0.67 +/- 0.80 '0.10 +/- 0.75 0.70 +/- 0.72 0.43 +/- 0.69 Be-7 155 +/- 33.3 168 +/- 32.1 132 +/- 29.6 141 +/- 24.2 149 +/- 31.6 NN-C Cs-134 1.31 +/- 1.10 0.66 +/- 0.84 0.42 +/- 0.80 -0.13 +/- 0.72 Cs-137 -0.29 +/- 0.86 -0.13 +/- 0.77 -0.43 +/- 0.73 0.39 +/- 0.57 Be-7 136 +/- 46.9 136 +/- 38.5 151 +/- 34.1 140 +/- 26.9 141 +/- 14.2 33
TABLE 3-6: GAMMA EMITTER AND STRONTIUM CONCENTRATIONS IN MILK*
Suny Po,wer Station, Suny County, Vrrginia - 2015 pCi/Liter +/- 2 Sigma Page I of3 COLONIAL NUCLIDE EPPS PARKWAY WILLIAMS-C JANUARY Cs-134 -8.07 +/- 4.24 4.10 +/- 5.27 -1.57 +/- 6.15 Cs-137 -0.57 +/- 3.46 4.08 +/- 5.41 1.98 +/- 5.80 Ba-140 -3.80 +/- 17.4 -20.2 +/- 28.8 10.2 +/- 23.9 La-140 -0.27 +/- 3.94 7.35 +/- 6.24 -5.86 +/- 9.20 1-131 -0.47 +/- 0.43 -0.24 +/-' 0.24 0.22 +/- 0.35 K-40 1330 +/- 140 1100 +/- 195 1200 +/- 184 FEBRUARY Cs-134 -2.82 +/- 2.68 0.09 +/- 4.03 0.44 +/- 4.65 Cs-137 -0.48 +/- 2.50 0.13 +/- 3.85 1.29 +/- 4.28 Ba-140 -6.70 +/- 15.0 -9.14 +/- 21:1 1.90 +/- 24.0 La-140 0.77 +/- 3.99 -1.23 +/- 6.89 -2.29 +/- 6.16 1-131 -0.74 +/- 0.33 -0.32 +/- 0.31 -0.16 +/- 0.31 K-40 1330 +/- 117 1330 +/- 170 1200 +/- 152 MARCH Cs-134 -1.16 +/- 3.66 2.02 +/- 3.05 -1.78 +/- 4.93 Cs-137 -1.04 +/- 3.68 -2.07 +/- 3.42 0.08 +/- 5.18 Ba-140 1.25 +/- 18.1 16.7 +/- 16.6 -30.3 +/- 25.9 La-140 1.24 +/- 3.93 -3.81 +/- 4.73 -2.60 +/- 6.57 1-131 -0.05 +/- 0.31 -0.18 +/- 0.31 '-0.03 +/- 0.23 K-40 1240 +/- 114 1370 +/- 136 . 1410 +/- 186 Sr-89 0.11 +/- 2.84 Sr-90 -0.31 +/- 0.31 APRIL Cs-134 -5.45 +/- 3.83 0.34 +/- 4.01 -0.29 +/- 5.09 Cs'-137 1.17. +/- 3.86 2.67 +/- 4.92 . 2.52 +/- 5.20 Ba-140 -2.34. +/- 23.6 -24.6 +/- 24.4 11.1 +/- 25.8 La-140 -0.15 +/- 7.74 -8.58 +/-. 6.96 0.91 +/- 7.11 1-131 0.10 +/- 0.38 -0.18 +/- 0.34 -0.16 +/- 0.25 K-40 1390 +/- 167 1250 +/- 179 1160 +/- 179 34
TABLE 3:..6: GAMMA EMITTER AND STRONTIUM CONCENTRATIONS IN MILK Surry Power Station, Surry County, Vrrginia - 2015 pCi/Llter +/- 2 Sigma Page2 of3 COLONIAL NUCLIDE EPPS PARKWAY WILLIAMS*C MAY Cs-134 -7.61 +/- 4.78 -4.93 +/- 3.93 -3.38 +/- 4.75 Cs-137 -3.62 +/- 6.22* 2.06 +/- 3.72 0.90 +/- 4.75 Ba-140 -9.91 +/- 30.4 -19.5 +/- 22.4 -1.92 +/- 22.4 La-140 -3.66 +/- 8.61 0.41 +/- 5.61 -3.26 +/- 7.73 1-131 -0.32 +/- 0.41 -0.25 +/- 0.44 -0.19 +/- 0.51 K-40 1280 +/- 188 1340 +/- 140 1320 +/- 171 JUNE Cs-134 -4.33 +/- 3.34 -2.75 +/- 3.21 -7.88 +/- 4.65 Cs-137 -1.21 +/- 3.51 0.80 +/- 2.64 1.12 +/- 4.46 Ba-140 15.4 +/- 18.6 6.36 +/- 12.3 -2.25 +/- 21.0 La-140 0.23. +/- 4.69 0.69 +/- 3.85 -0.70 +/- 6.35 1-131 -0.38 +/- 0.34 -0.06 +/- 0.41 -0.02 +/- 0.25 K-40 1360 +/- 121 1130 +/- 96.7 1430 +/- 151 Sr-89 3.67 +/- 3.08 Sr-90 1.76 +/- 0.46 JULY Cs-134 -2.73 +/- 2.67 0.28 +/- 3.91 1.13 +/- 4.37 Cs-137 2.50 +/- 3.20 -1.29 +/- 4.70 2.09 +/- 4.09 Ba-140 2.81 +/- 17.1 18.6 +/- 22.1 -0.56 +/- 20.0 La-140 0.87 +/- 4.30 4.49 +/- 5.23 -3.31 +/- 5.58 1-131 -0.32 +/- 0.40 -0.44 +/- 0.48 -0.09 +/- 0.28 K-40 1460 +/- 151 1300 +/- 179 1300 +/- 140 AUGUST Cs-134 -5.02 +/- 4.84 -1.14 +/- 5.91 -2.53 +/- 4.18 Cs-137 -2.99 +/- 5.19 -1.62 +/- 6.26 3.34 +/- 4.84 Ba-140 16.7 +/- 20.7 -7.70 +/- 28.8 9.12 +/- 18.8 La-140 0.53 +/- 6.59 4.77 +/- 7.28 -0.24 +/- 4.55 1-131 -0.07 +/- 0.43 -0.42 +/- 0.45 -0.30 +/- 0.50 K-40 1300 +/- 185 1430 +/- 209 1420 +/- 181 35
TABLE 3-6: GAMMA EMITTER AND STRONTIUM CONCENTRATIONS IN MILK Suny Power Station, Suny County, Vrrginia - 2015 pCi/Liter +/- 2 Sigma Page3 of3 COLONIAL NUCLIDE EPPS PARKWAY WILLIAMS-C SEPTEMBER Cs-134 -3.46 +/- 6.13 -2.98 +/- 5.71 -1.00 +/- 5.67
, Cs-137 -4.92 +/- 5.91 -2.29 +/- 6.02 4.22 +/- 6.73
, Ba-140 5.71 +/- 24.0 -15.0 +/- 19.9 -1.70 +/- 19.2 La-140 3.37 +/- 6.79 4.22 +/- 5.86 -2.12 +/- 9.22 1-131 -0.13 +/- 0.26 -0.54 +/- 0.26 -0.10 +/- 0.16 K-40 1570 +/- 233 1340 +/- 211 1130 +/- 227 Sr-89 4.17 +/- 2.89 Sr-90 1.80 +/- 0.49 OCTOBER Cs-134 4.04 +/- 4.03 -2.06 +/- 3.13 -5.90 +/- 3.58 Cs-137 2.67 +/- 3.69 1.08 +/- 3.68 -3.12 +/- 3.83 Ba-140 -3.90 +/- 14.5 10.7 +/- 12.0 -6.30 +/- 13.8 La-140 2.48 +/- 3.30 -1.31 +/- 3.49 0.02 +/- 3.22 1-131 -0.30 +/- 0.31 -0.19 +/- 0.34 . -0.51 +/- 0.36 K-40 1280 +/- 132 1070 +/- 144 1340 +/- 163 NOVEMBER Cs-134 3.18 +/- 5.54 -2.30 +/- 4.80 -6.05 +/- 6.11 Cs-137 2.35 +/- 6.16 1.68 +/- 4.52 2.98 +/- 6.74 Ba-140 -9.92 +/- 24.8 12.9 +/- 22.3 10.4 +/- 27.2 La-140 1.27 +/- 6.28 1.46 +/- 6.48 -1.84 +/- 9.76 1-131 -0.43 +/- 0.42 -0.10 +/- 0.41 -0.09 +/- 0.33 K-40 1390 +/- 215 1320 +/- 167 1360 +/- 231 DECEMBER Cs-134 0.18 +/- 5.19 1.20 +/- 5.12 1.95 +/- 5.36 Cs-137 0.08 +/- 5.05 0.74 +/- 5.62 1.99 +/- 5.77 Ba-140 4.15 +/- 23.5 -6.34 +/- 26.0 -2.40 +/- 23.5 La-140 1.25 +/- 6.64 2.03 +/- 8.25 2.36 +/- 5.48 1-131 -0.09 :!;: 0.36 -0.19 +/- 0.48 -0.26 +/- 0.52 I K-40 1290 +/- 186 1540 +/- 213 1280 +/- 201
- I Sr-89 1.28 +/- 2.23 Sr-90 -0.07 +/- 0.30 36
TABLE 3-7: GAAN4 EMIITER CONCENTRATION IN FOOD PRODUCTS Suny Power Station, Suny County, Virginia - 2015 pCi/kg (wet)+/- 2 Sigma Page 1 ofl SAMPLING COLLECTION SAMPLE LOCATIONS DATE TYPE ISOTOPE Cs-134 Cs-137 1-131 K-40 BROCK 11/24/2015 Corn 8.89 +/- 12.9 4.27 +/- 13.0 6.51 +/- 21.3 3830 +/- 483 FARM Cs-134 Cs-137 1-131 K-40 11/24/2015 Peanuts -2.96 +/- 14.7 5.71 +/- 15.7 3.20 +/- 28.1 5640 +/- 688 Cs-134 Cs-137 1-131 K-40 SLADE 11/24/2015 Soybeans -0.58 +/- 15.0 8.44 +/- 17.0 9.86 +/- 32.2 17800 +/- 880 FARM 37
TABLE 3-8: GAMMA EMITTER AND TRITIUM CONCENTRATIONS IN WELL WATER Suny Power Station, Suny County, Virginia - 2015 pCi/liter +/- 2 Sigma Page 1 of2 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 Zn-65 SS 3/2/2015 -1.17 +/- 2.53 -0.06 +/- 2.48 -0.51 +/- 4.89 -0.84 +/- 2.12 -1.47 +/- 5.21 6/3/2015 -0.50 +/- 1.81 -0.87 +/- 2.05 1.63 +/- 4.45 -1.20 +/- 1.83 -3.49 +/- 4.50 9/7/2015 0.00 +/- 4.33 . -1.61 +/- 3.97 -4.07 +/- 7.75 4.62 +/- 3.63 -2.65 +/- 8.62 12/1/2015 -0.99 +/- 2.88 -0.34 +/- 2.78 -0.87 +/- .5.54 0.57 +/- 3.41 1.93 +/- 5.79 Nb-95 Zr-95 1-131
- Cs-134 Cs-137 3/2/2015 2.60 +/- 2.44 -1.15 +/- 3.93 -0.37 +/- 0.24 1.28 +/- 3.27 -1.21 +/- 2.75 6/3/2015 *-1.46 +/- 2.06 -0.03 +/- 3.92 -0.16 +/- 0.22 -0.42 +/- 2.17 0.94 +/- 2.01 9/7/2015 2.23 +/- 4.36. -1.09 +/- 7.16 -0.12 +/- 0.35 -7.08 +/- 4.76 -1.37 +/- 4.37 12/1/2015 0.99 +/- 2.81 5.47 +/- 4. 77 3.21 +/- 5. 70 -1.85 +/- 3.46 -1.10 +/- 2.86 Ba-140 La-140 H-3 3/2/2015 2.96 +/- 12.2 2.04 +/-' 3.92 711 +/- 1200 6/3/2015 -4.24 +/- 11.7 2.41 +/- 4.06 -30.8 +/- 772 9/7/2015 -5.46 +/- 17.6 0.17 +/- 5.28 38.0 +/- 568 12/1/2015 0.97 +/- 14.8 -5.60 +/- 5.16 38.2 +/- 1200 Mn-54 Co-58 Fe-59 Co-60 Zn-65 HIR 3/2/2015 0.00 +/- 2.67 0.20 +/- 3.33 0.93 +/- 5:92 2.02 +/- 2.77 -5.93 +/- 6.65 6/3/2015 -1.01 +/- 1.94 -0.39 +/- 2.19 -0.76 +/- 4.69 0.25 +/- 1.92 -4 ..54 +/- 4.91 9/7/2015 -2.47 +/- 3.42 0.87 +/- 3.53 0.45 +/- 8.45 -0.57 +/- 4.43 -0.98 +/- 8.40 12/1/2015 -1.80 +/- 2.73 -0.12 +/- 2.67 1.14 +/- 5.19 -0.28 +/- 2.95 3.39 +/- 5.91 Nb-95 Zr-95 1-131 Cs-134 Cs-137 3/2/2015 -2.78 +/- 3.35 -2.86 +/- 5.61 -0.29 +/- 0.24 -5.54 +/- 3.90 2.02 +/- 3.55 6/3/2015 1.01 +/- 2.27 0.03 *+/- 4.36 -0.25 +/- 0.29 -6.00 +/- 2.25 -0.54 +/- 2.08 9/7/2015 . -0.56 +/- 4.20 3.64 +/- 6.12 -0.06 +/- 0.10 1.77 +/- 3.72 3.53 +/- 4.59 12/1/2015 1.92 :t 3.12 0.00 +/- 4.56 2.61 +/- 5.44 0.13 +/- 2.69 1.51 +/- 2.55 Ba-140 La-140 H-3 3/2/2015 16.7 +/- 16.8 -0.15 +/- 4.13 -177 +/- 995 6/3/2015 -10.0 +/- 13.7 0.01 +/- 4.55 272 +/- 805 9/7/2015 -1.31 +/- 15.7 1.64 +/- 3.32 203 +/- 582 12/1/2015 1.49 +/- 13.8 -1.89 +/- 3.98 351 +/- 817 38
TABLE 3-8: GAMMA EMITTER AND TRITIUM CONCENTRATIONS IN WELL WATER Surry Power Station, Surry County, Vrrginia -2015 pCi/liter+/- 2 Sigma Page2 of2 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 Zn-65 cs 3/2/2015 -2.15 +/- 3.19 -0.31 +/- 3.72 -3.56 +/- 7.10 -0.34 +/- 3.47 -8.11 +/- 8.12 6/3/2015 -0.60 +/- 0.94 0.08 +/- 0.99 0.69 +/- 1.94 -0.13 +/- 0.96 0.18 +/- 2.08 9/7/2015 -2.79 +/- 3.98 2.53 +/- 3.79 0.71 +/- 8.30 0.06 +/- 3.77 8.28 +/- 9.65 12/1/2015 -0.43 +/- 2.91 -0.37 +/- 2.98 2.23 +/- 6.66 3.26 +/- 3.48 -2.02 +/- 7.53 Nb-95 Zr-95 1-131 Cs-134 Cs-137 3/2/2015 -2.05 +/- 3.07 -2.65 +/- 5.75 -0.20 +/- 0.24 1.70 +/- 3.26 0.30 +/- 3.53 6/3/2015 0.39 +/- 0.95 0.18 +/- 1. 71 -0.08 +/- 0.22 -0.06 +/- 0.98 0.02 +/- 0.96 9/7/2015 2.69 +/- 3.95 2.41 +/- 6.84 -0.01 +/- 0.11 -5.14 +/- 4.84 2.34 +/- 3.87 12/1/2015 -0.30 +/- 3.13 1.22 +/- 5.91 -0.69 +/- 6.24 -2.18 +/- 3.54 0.47 +/- 3.56 Ba-140 La-140 H-3 K-40 3/2/2015 6.39 +/- 16.4 3.03 +/- 6.51 710 +/- 1200 6/3/2015 3.23 +/- 5.48 -1.55 +/- 1.85 -115 +/- 745 9/7/2015 3.91 +/- 16.4 -2.36 +/- 4.49 12.7 +/- 567 88.5 +/- 71.8 12/1/2015 5.44 +/- 15.0 -1.61 +/- 6.00 717 +/- 850 39
TABLE 3-9: GAMM4 EMITTER AND TRITIUM CONCENTRATIONS IN RIVER WATER Suny Power Station, Suny County, Vrrginia - 2015 pCi/liter+/-2 Sigma Page I of2 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 Zn-65 SD. 1/13/2015 -0.70 +/- 2.33 -1.76 +/- 2.46 1.77 +/- 4.80 -0.13 +/- 2.42 -0.18 +/- 4.65 2/16/2015 0.21 +/- 1.68 -0.79 +/- 1.33 1.54 +/- 4.49 -0.57 +/- 1.48 1.98 +/- 3.29 3/9/2015 -0.79 +/- 1.95 0.28 +/- 1.83 -0.74 +/- 4.08 0.13 +/- 1.47 -0.53 +/- 3.95 4/21/2015 -1.30 +/- 2.95 -1.51 +/- 3.06 2.49 +/- 6.21 0.65 +/- 3.07 -12.2 +/- 7.03 5/25/2015 0.20 +/- 1.43 0.66 +/- 1.46 -0.28 +/- 3.35 1.47 +/- 1.52 -1.62 +/- 3.08 6/9/2015 2.90 +/- 3.31 -1.67 +/- 2.95 2.37 +/- 5.60 -0.71 +/- 3.41 -0.98 +/- 5.81 7/14/2015 -0.08 +/- 4.11 0.11 +/- 3.95 0.94 +/- 7.03 0.35 +/- 3.83 -0.22 +/- 8.39 8/11/2015 -0.65 +/- 3.11 -0.75 +/- 3.47 -2.67 +/- 6.10 -0.44 +/- 2.46 0.63 +/- 7.14 9/7/2015 1.33 +/- 3.74 -2.06 +/- 3.71 -6.35 +/- 9.63 -3.22 +/- 5.00 -1.69 +/- 6.82 10/13/2015 -1.24 +/- 2.35 0.73 +/- 2.12 . 0.21 +/- 4.19 -0.30 +/- 2.08 -8.02 +/- 5.12 11/6/2015 1.77 +/- 3:38 1.98 +/- 3.68 2.01 +/- 6.76 -2.20 +/- 3.95 -1.74 +/- 7.76 12/1/2015 -0.60 +/- 3.11 0.85 +/- 3.03 2.09 +/- 5.46 2.07 +/- 3.65 -2.26 +/- 6.79 Nb-95 Zr-95 1-131 Cs-134 Cs-137 1/13/2015 0.26 +/- 2.62 -5.37 +/- 4.40 2.09 +/- 5.32 -1.32 +/- 2.75 0.31 +/- 2.54 2/16/2015 0.14 +/- 1.85 . -1.06 +/- 2.79 -2.91 +/- 4.27 -0.60 +/- 1.52 0.76 +/- 1.75 3/9/2015 1.74 +/- 2.41 -2.27 +/- 3.69 -4.74 +/- 4.67 0.26 +/- 2.39 0.06 +/- 2.11 4/21/2015 2.83 +/- 3.05 -7.51 +/- 5.54 . -2.13 +/- 6.28 -1.47 +/- 5.53 -1.16 +/- 3.43 5/25/2015 -0.01 +/- 1.80 -0.79 +/- 2.80 _0.78 +/- 3.63 0.91 +/- 1.46 --0.36 +/- 1.61 6/9/2015 -0.11 +/- 3.21 -6.62 +/- 5.66 -4.07 +/- 5.95 -3.12 +/- 3.24 1.70 +/- 3.50 7/14/2015 1.95 +/- 3.62 2.51 +/- 5.97 4.00 +/- 4.95 -8.32 +/- 4.20 1.89 +/- 3.87 8/11/2015 -0.03 +/- 3.13 -1.79 +/- 5.31 -0.74 +/- 5.99 -1.15 +/- 3.67 0.03 +/- 3.64 9/7/2015 4.33 +/- 4.79 -3.06 +/- 8.54 0.04 +/- 5.80 -0.97 +/-,3.82 -2.30 +/- 5.52 10/13/2015 1.21 +/- 2.17 -1.14 +/- 3.96 -0.75 +/- 2.99 1.25 +/- 2.28 -0.77 +/- 2.75 11/6/2015 1.33 +/- 3.39 2.50 +/- 6.07 -0.87 +/- 4.78 1.25 +/- 3.86 -5.05 +/- 3.75 12/1/2015 -1.27 +/- 3.11 0.89 +/- 5.30 -3.28 +/- 5.30 -1.16 +/- 3.34 -0.17 +/- 3.32 Ba-140 La-140 H-3 K-40 I
1/13/2015 2.58 +/- 12.4 -1.84 +/- 3.61 I
2/16/2015 -3.76 +/- 9.75 -2.29 +/- 2.81 3/9/2015 15.4 +/- 11.4 1.48 +/- 3.47 -89.9 +/- 483 4/21/2015 -4.08 +/- 12.4 -2.05 +/- 4.31 5/25/2015 0.77 +/- 8.62 0.23 +/- 2.78 45.4 +/- 39.8 6/9/2015 -2.77 +/- 16.2 -0.76 +/- 4.51 893 +/- 1200 98.1 +/- 48.9 7/14/2015 6.59 +/- 13.4 0.15 +/- 4.60 98.1 +/- 74.2 8/11/2015 -11. 7 +/- 15.1 -1.54 +/- 5.11 122 +/- 69.0 9/7/2015 -0.46 +/- 19.4 2.02 +/- 6.80 -155 +/- 579 177 +/- 142 10/13/2015 -3.42 +/- 9.49 -1.23 +/- 2.90 84.5 +/- 49.2 11/6/2015 2.62 +/- 14.4 -1.98 +/- 4.98 100 +/- 66.0 12/1/2015 1.93 +/- 15.1 0.98 +/- 4.11 404 +/- 575 87.3 +/- 49.6 40
TABLE 3-9: GAMk!A EMITTER AND TRITIUM CONCENTRATIONS IN RIVER WATER Suny Power Station, Suny County, Vuginia - 2015 pCi/liter+/-2 Sigma Page2 of2 SAMPLING COLLECTION LOCATIONS DATE ISOTOPES Mn-54 Co-58 Fe-59 Co-60 Zn-65 SW-C 1/13/2015 -0.63 +/- 2.54 . 0.20 +/- 2.87 -2.88 +/- 5.62 -1.03 +/- 2.79 -7.78 +/- 6.59 2/16/2015 0.22 +/- 1.54 -0.21 +/- 1.72 1.83 +/- 5.27 -0.20 +/- 2.47 1.66 +/- 2.58 3/9/2015 -1. 79 +/- 2.13 -2.06 +/- 2.31 0.50 +/- 4.60 -1.02 +/- 2.00 -5.79 +/- 4.60 4/21/2015 -1.49 +/- 2.76 -1.35 +/- 2.75 0.45 +/- 5.53 -0.82 +/- 2.35 :-0.08 +/- 5.70 5/26/2015 -0.66 +/- 1.29 -0.45 +/- 1.26 -1.67 +/- 2.57 0.14 +/- 1.40 -4.49 +/- 3.19 6/9/2015 -2.38 +/- 2.93 0.28 +/- 3.03 -0.07 +/- 6.97 0.54 +/- 4.03 1.89 +/- 6.51 7/14/2015 1.07 +/- 4.36 6.06 +/- 5.03 -5.73 +/- 9.50 -4.39 +/- 5.25 12.2 +/- 10.8 8/11/2015 0.56 +/- 3.36 1.19 +/- 3.45 4.42 +/- 8.10 -1.98 +/- 4.08 -'7.35 +/- 8.54 9/7/2015 -5.12 +/- 5.40 1.01 +/- 3.54 1.94 +/- 12.6 -0.56 +/- 5.34 -4.64 +/- 11.4 10/13/2015 1. 70 +/- 2.89 -0.47 +/- 2.42 2.50 +/- 5.34 0.69 +/- 2.97 -7.61 +/- 6.13 11/6/2015 -1.74 +/- 2.98 -1.28 +/- 3.01 -0.19 +/- 5.28 0.08 +/- 3.84 -5.20 +/- 8.60 12/1/2015 1.10 +/- 2.84 -0.56 +/- 2.79 6.18 +/- 6.16 0.00 +/- 2.67 -6.45 +/- 6.86 Nb-95 Zr-95 1-131 Cs-134 Cs-137 1/13/2015 2.06 +/- 2.91 1.30 +/- 5.34 2.30 +/- 5.29 0.71 +/- 3.21 0.54 +/- 2.95 2/16/2015 1.53 +/- 2.73 1.93 +/- 3.89 2.08 +/- 5.18 -0.13 +/- 2.44 -0.38 +/- 2.51 3/9/2015 -0.19 +/- 2.29 0. 79 +/- 4.28 3.09 +/- 5.65 -3.72 +/- 2.50 -0.96 +/- 2.40 4/21/2015 0.71 +/- 2.72 . 2.19 +/- 5.06 -4.04 +/- 5.98 0.54 +/- 4.45 0.31 +/- 2.80 5/26/2015 1.28 +/- 1.39 0.60 +/- 2.19 1.23 +/- 2.82 -0.03 +/- 1.63 0.72 +/- 1.33
' ! 6/9/2015 1.05 +/- 3.02* 1.12 +/- 5.94 0.65 +/- 5.67 -1.70 +/- 3.34 0.08 +/- 3.43 7/14/2015 1.49 +/- 4.45 3.26 +/- 8.16 -3.75 +/- 6.11 1.54 +/- 4.63 -1.00 +/- 5.09 8/11/2015 1.73 +/- 3.19 2.10 +/- 5.50 -4.43 +/- 5.69 -0.65 +/- 3.33 -0.11 +/- 3.85 9/7/2015 -0.56 +/- 4.56 0.75 +/- 7.87 -0.79 +/- 5.54 0.33 +/- 4.40 0.50 +/- 5.22 10/13/2015 0.36 +/- 2.85 -3.34 +/- 4.84 3.83 +/- 3. 78 -1.08 +/- 3.06 2.11 +/- 3.03 11/6/2015 -1.23 +/- 3.66 2.33 +/- 5.15 . 1.76 +/- 5.27 -1.78 +/- 3.12 1.13 +/- 3.66 12/1/2015 -0.33 +/- 2.79 3.49 +/- 5.22 3.02 +/- 5.37. 2.55 +/- 2.54 1.22 +/- 3.08 Ba-140 La-140 H-3 K-40 Th-228
- _I 1/13/2015 -9.77 +/- 13.6 4.49 +/- 4.92 2/16/2015 1.62 +/- 8.85 3.22 +/- 4.84 3/9/2015 6.29 +/- 13.8 -3.61 +/- 3.34 -244 +/- 470 4/21/2015 -8.12 +/- 14.7 0.49 +/- 3.92 5/26/2015 0.50 +/- 7.02 0.52 +/- 2.15 ' 4.69 +/- 2.61 6/9/2015 -4.06 +/- 22.2 1.78 +/- 5.95 -1090 +/- 962 71.7 +/- 52.7 7/14/2015 -1.90 +/- 20.2 -1.49 +/- 5. 79 15.2 +/- 10.0 8/11/2015 0.52 +/- 16.4 -5.08 +/- 6.31 68.9 +/- 63.7 9/7/2015 -6.41 +/- 13.9 -3.81 +/- 7.32 -360 +/- 563 167 +/- 128 10/13/2015 4.53 +/- 10.6 1.80 +/- 3.68 11/6/2015. -0.15 +/- 12.6 . 0.83 +/- 4.09 12/1/2015 -2.75 +/- 15.1 -3.29 +/- 4.69 161 +/- 551 41
TABLE 3-10: GAMMA EMITTER CONCENTRATIONS IN SILT Suny Power Station, Suny County, Vrrginia -2015 pCi/kg (dry)+/- 2 Sigma Page 1 ofl SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Cs-134 Cs-137 K-40 Th-232 Th-228 SD 3/9/2015 21.4 +/- 43.5 24.1 +/- 50.8 12900 +/- 1330 1510 +/- 207 1570 +/- 129 9/3/2015 9.64 +/- 79.7 76.4 +/- 90.5 21100 +/- 2630 1320 +/- 285 1110 +/- 177 Ra-226 3/9/2015 3260 +/- 1660 9/3/2015 Cs-134 Cs-137 K-40 Th-232 Th-228 CHIC-C 3/9/2015 14.5 +/- 89.7 196 +/- 134 21200 +/- 2830 1790 +/- 444 1460 +/- 389 9/2/2015 -5.42 +/- 105 214 +/- 130 16900 +/- 2770 1130 +/- 302 1270 +/- 263 Ra-226 3/9/2015 9/2/2015 2260 +/- 2200 42
TABLE 3-11: GA1Wl:t4 EMITTER CONCENTRATIONS IN SHORELINE SEDIMENT Suny Power Station, Suny County, Virginia- 2015 pCi/kg (dry)+/- 2 Sigma Page 1of1 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE C~134 C~137 K-40 Ra-226 Th-228 HIR 2/23/2015 -10.1 +/- 31.6 -4.60 +/- 23.7 7760 +/- 1000 1420 +/- 912 315 +/- 88.5 8/11/2015 -13.5 +/- 29.8 -12.5 +/- 29.6 5720 +/- 819 734 +/- 79.6 Th-232 2/23/2015 444 +/- 102 8/11/2015 737 +/- 108 CHIC-C 2/23/2015 0.25 +/- 18.4 -7.78 +/- 18.3 2430 +/- 495 927 +/- 639 330 +/- 53.0 8/11/2015 34.3 +/- 35.4 -17.2 +/- 33.9 1640 +/- 600 2350 +/- 1250 1370 +/- 106 Th-232 2/23/2015 413 +/- 86.9 8/11/2015 1350 +/- 173 43
TABLE 3-12: GAMMA EMITTER CONCENTRATION IN FISH Suny Power Station, Suny County, Virginia*- 2015 pCi/kg (wet) ::l;: 2 Sigma Page 1of1 SAMPLING COLLECTION SAMPLE LOCATION DATE TYPE ISOTOPE K-40 Mn-54 Co-58 Fe-59 SD 4/6/2015 Catfish 2910 +/- 871 1.20 +/- 37.3 -4.54 +/- 34.6 0.18 +/- 63.7 4/6/2015 Game fish 1040 +/- 600 -14.5 +/- 33.8 -21.6 ~ 34.1 -16.8 +/- 75.4 10/7/2015 Catfish 1690 +/- 547 -8.83 +/- 21.4 5.86 +/- 20.6 21.8 +/- 52.9 10/7/2015 Game fish 1950 +/- 771 2.28 +/- 29.2 -3.01 +/- 33.8 19.5 +/- 93.8 Co-60 Zil-65 Cs-134 . Cs-137 4/6/2015 Catfish -13.3 +/- 35.1 -61.0 +/- 79.8 8.94 +/- 39.9 19.8 +/- 38.3 4/6/2015 Game fish 25.9 +/- 33.2 -14~0 +/- 73.2 -81.6 +/- 40.6 -4.67 +/- 38.8 10/7/2015 Catfish 4.30 +/- 24.3 0.42 +/- 42.6 2.65 +/- 25.6 9.87 +/- 23.1 10/7/2015 Game fish 31.9 +/- 30*.8 31.0 +/- 79.6 -2.74 +/- 35.1 -21.9 +/- 36.8 44
TABLE 3-13: GAMMA EMITTER CONCENTRATIONS IN OYSTERS Suny Power Station, Suny County, Vrrginia - 2015 pCi/kg (wet) +/- 2 Sigma Page 1of1 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 POS 3/9/2015 -2.26 +/- 23.0 -12.4 +/- 25.7 5.51 +/- 44.7 16.7 +/- 24.2 9/3/2015 31.2 +/- 32.1 -9.59 +/- 41.4 -61.9 +/- 72.5 -6.36 +/- 32.8 Zn-65 Cs-134 Cs-137 K-40 3/9/2015 23.0 +/- 49.9 -20.0 +/- 24.1 2.75 +/- 25.2 867 +/- 539 9/3/2015 19.5 +/- 34.8 15.7 +/- 33.5 0.70 +/- 35.8 Mn-54 Co-58 Fe-59 Co-60 MP 3/10/2015 -22.3 +/- 33.1 -34. 7 +/- 36.6 -44.9 +/- 65.0 0.98 +/- 31.8 9/3/2015 -4.80 +/- 26.6 0.23 +/- 25.7 -31.6 +/- 60.6 -25.2 +/- . 25.1 Zn-65 Cs-134 Cs-137 K-40 3/10/2015 -105 +/- 84.6 16.2 +/- 42.1 19.7 +/- 36.2 955 +/- 643 9/3/2015 ' -72.9 +/- 84.5 15.9 +/- 27.7 9.34 +/- 24.9 Mn-54 Co-58 Fe-59 Co-60 LC 3/10/2015 -12.9 +/- 19.4 5.73 +/- 20.4 13.4 +/- 54.6 19.6 +/- 22.1 9/3/2015 -12.6 +/- 37.9 9.64 +/- 40.1 -74.2 +/- 114 2.49 +/- 24.8 Zn-65 Cs-134 Cs-137 K-40 3/13/2013 -26.7 +/- 38.8 -3.04 +/- 21.6 4.29 +/- 19.4 611 +/- 399 9/3/2015 -6.90 +/- 96.6 0.53 +/- 36.0 7.16 +/- 30.5 45
TABLE 3-14: GAMMA EMITTER CONCENTRATIONS IN CLAMS Suny Power Station, Suny County, Vrrginia - 2015 pCi/kg (wet) +/- 2 Sigma Page 1 of 1 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 JI 3/9/2015 -1.79 +/- 22.0 -4.38 +/- 28.0 21.2 +/- 51.6 -3.30 +/- 25.9 9/2/2015 4.35 +/- 27.7 5.45 +/- 24.7 -1.48 +/- 61.9 6.07 +/- 22.2 Zn-65 Cs-134 Cs-137 3/9/2015 -36.4 +/- 52.1 -17.2 +/- 25.4 . 13.2 +/- 24.9 9/2/2015 -7.41 +/- 44.4 -0.84 +/- 28.5 -17.3 +/- 36.8 Mn-54 Co-58 Fe-59 Co-60 SD 3/9/2015 12.4 +/- 27.1 -8.75 +/- 28.4 -23.5 +/- 61.9 13.0 +/- 29.4 9/3/2015 -10.7 +/- 23.5 -14.8 +/- 34.8 -27.5 +/- 61.0 -9.49 +/- 30.1 Zn-65 Cs-134 Cs-137 3/9/2015 -46.5 +/- 6i4 -22.7 +/- 37.4 16.0 +/- 30.0 9/3/2015 23.2 +/- 63.4 3.44 +/- 29.5 -14.6 +/- 31.3 Mn-54 Co-58 Fe-59 Co-60 CHIC-C 3/9/2015 -1.36 +/- 20.1 -8.33 +/- 22.0 15.6 +/- 52.8 -2.10 +/- 17.8 9/2/2015 9.52 +/- 21.7 8.29 +/- 22.5 16.9 +/- 39.7 2.06 +/- 21.6 Zn-65 Cs-134 Cs-137 3/9/2015 -66.1 +/- 46.5 2.24 +/- 28.1 0.41 +/- 22.0 9/2/2015 -51.4 +/- 60.8 -10.3 +/- 20.5 -16.8 +/- 25.1 46
TABLE 3-15: GAMMA EMITTER CONCENTRATIONS IN CRABS Suny Power Station, Suny County, Vrrginia -.2015 pCi/kg (wet)+/- 2 Sigma Page 1 of 1 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE K-40 Mn-54 Co-58 Fe-59 SD 6/9/2015 1140 +/- 725 -9.54 +/- 30.5 9.19 +/- 33.8 -21.1 +/- 78.9 Co-60 Zn-65 Cs-134 Cs-137 18.3 +/- 27.9 -55.4 +/- 75.8 -25.0 +/- 33.3 17.7 +/- 34.2 47
- 4. DISCUSSION OF RESULTS ,
Data from the radiological analyses of environmental media collected during 2015 and tabulated in Section 3, are discussed below. Tue 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. Tue results of the Interlaboratory Comparison Program are provided in Appendix B.
Tue predominant radioactivity detected throughout 2015 was from external sources, such as fallout from nuclear weapons tests (cesium-137) and naturally occurring radionuclides. Naturally occurring nuclides such as beryllium-7, potassium-40, radium-226, thorium-228 and thorium-232 were detected in numerous samples.
Tue following is a discussion and summary of the results of the environmentcil measurements taken during the 2015 reporting period.
4.1 Gamn,,a Exposure Rate A thermoluminescent dosimeter (TLD) is an inorganic crystal used to detect ambient radiation. 'Two TLDs, made of CaF and LiF elements and specifically designed for environmental monitoring, are deployed at each sampling location.
TLDs are placed in two concentric rings around the station. The inner ring is located in the vicinity of the site boundary, and the outer ring is located at approximately five miles from the station. TLDs are also placed in_ special interest areas, such as population centers and nearby residences. Additional TLDs serve as controls. Ambient radiation comes from naturally occurring radioisotopes in the air and soil, radiation from cosmic origin, fallout from nuclear weapons testing, station effluents and direct radiation from the station.
Tue results of the TLD analyses are presented in Table 3..:2. Figure 4-1 shows a historical trend of TLD exposure rate measurements, comparing the average of indicator TLDs located near the site boundary and at 5 miles to the average of all control TLD locations. Control and indicator averages indicate a steady
- relationship. In 2013, Panasonic UD-814 environmental TLDs replaced Harshaw environmental TLDs that were used since 2001. Benchmarking showed that Panasonic UD-814 TLDs were the industry best environmental TLD with improved precision over the Harshaw TLDs. Along with implementing new environmental 48
TLDs in 2013, an improved method for calculating control dosimeter dose was implemented to estimate transit dose. A program review found that control dosimeters cannot be used directly to assess the transit dose, since control dosimeters also accrue dose from cosmic radiation while stored in the shielded storage cask/ cave. Therefore, additional calculations must be made in order to determine the transit *dose component. This transit dose component was determined by processing the control dosimeters, and subtracting out the monitoring period storage dose. Previously, control dosimeters were assumed to be a direct measurement of transit dose which resulted in a non-conservative (lower) result of reported field doses. The field dose with the replacement TLDs is higher than that of the previously used TLDs as the greater precision and accuracy of the replacement TLD along with improved control dosimeter dose provides a more representative response to ambient radiation.
Figure4-1: DIRECT RADIATION MEASUREMENT TLD RESULTS
£ 6 +-~~~~~~~~~~~~~~~~~~~~~~~~~~~~=--tr~
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~ 4 ~--.,.~~~--4~~.__~~-:P~~~~r-~>A.,---~i=a:r--~~~~~~~---1 c:
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~ 3 ~-?9F--..._........,~l--~--->so~~~IHll~F-'-.:-="'rl'.~--'=+---~~~~~~~~----t 0::
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-+- SiteBoundry _._ SMile --.- AvgContro l I 4.2 Airborne Gross Beta Air is continuously sampled by passing it through glass fiber particulate filters.
The filters collect airborne particulate radionuclides. Once a week the samples are collected and analyzed for gross beta activity. Results of the weekly gross beta analyses are presented in Table 3-3. A review of the results from control and indicator locations continues to show no significant variation in measured activities (see Figure 4-2 and 4-3). This indicates that any station contribution is 49
activities (see Figure 4-2 and 4-3). This indicates that any station contribution is not measurable. As evident in Figure 4-2, the control gross beta concentration deviated from the norm for the sampling period of June 30 - July 7. Electrical power was lost to the control sampler during this sampling period.
Gross beta activity found during the pre-operational and early operating period of Surry Power Station was higher because of nuclear weapons testing. During that time, nearly 740 nuclear weapons were tested worldwide. In 1985 weapons testing ceased, and with the exception of the Chernobyl accident in 1986, airborne gross beta results have remained steady.
Figure 4-2: 2015 GROSS BETA IN AIR PARTICULATES 0.045 0.040 0.035 0.030
.., 0.025
.E uc. 0.020 0.015 0.0 10 0.005 0.000 V)
°'(;! ~ \0 N \0
°'~
("') t- - '<!" 00 N \0 0 ("') t- 0 '<!" 00 N V)
°'
("') t- -
~
N
(;!
N --
("')
(;!
("') ~ ~
l/")
(;!
V)
~
\0 ID ~
t-t- -- --
("')
t- 00 ~ ~ ~ ~ ~
~
-- ~
N N !:'N.::'
I ---+--- Avg Indicator ___.....__ Ave Con trol I 50
Figure 4-3: GROSS BETA IN AIR PARTICULATES HISTORICAi. TREND
~
~
~
~
~
~
~
~
g0 0 0 0
~ 80 g0 ~
0
~
0 80 ~
0
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0 0 0 0 0 0 N N N N N N N N N N N N N N N N
- - - Avg lndicator __._ AvgControl - Avg-Pre Op - - Required LLD 4.3 Airborne Radioiodine Air is also continuously sampled for radioiodines by passing it 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. These results are sirriilar to pre-operational data and the results of samples taken prior to and after the 1986 accident in the Soviet Union at Chernobyl and the Fukushima Daiichi nuclear incident in 2011 .
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 is produced by cosmic processes. No man-made radionuclides were identified. These analyses confirm the lack of station effects.
51
4.5 CowMilk Analysis of milk samples is generally the most sensitive indicator of fission product existence in the terrestrial environment. This, in combination with the fact that consumption of milk is significant, results in this pathway usually being the most critical from the plant release viewpoint. This pathway also shows measurable amounts of nuclear weapons testing fallout. Therefore, this media needs to be carefully evaluated when trying to determine if there is any station effect.
Results of gamma spectroscopy indicate no detectable station related radioactivity in the milk samples. In years past, cesium-137 had been detected sporadically.
The occurrences were attributed to residual global fallout from past atmospheric weapons testing. Cs-137 was not detected at a level above the LLD in 2015.
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 composite samples at an average concentration of 1. 78 pCi/L. Sr-90 is not a component of the station radiological effluents and is a product of nuclear weapons testing fallout which has been well documented.
- 4. 6 Food Products Three samples were collected and analyzed by gamma spectroscopy. The results of the analyses are presented in Table 3-7. As expected, naturally occurring potassium-40 was detected in all samples. The average concentration is consistent with that observed in previous years. No station related radioactivity was detected.
- 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 at three indicator locations and analyzes for gamma radiation and for tritium. The results of these analyses are presented in Table 3-8. Consistent with past monitoring, no station related radioactivity was detected. No gamma emitting isotopes were detected during the pre-operational period.
- 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 spectroscopy. The 52
monthly samples are also composited and analyzed for tritium on a quarterly basis. Tritium was not detected and, with the exception of natural products, no other gamma emitters were detected. The naturally occurring radionuclides detected were potassium-40 and thorium-228. No station related radioactivity was detected.
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 two locations, one upstream and one downstream of the station. The results of the gamma spectroscopy analyses are presented in Table 3-10. Naturally occurring potassium-40, radium-226, thorium-228 and thorium-232 were detected. Historically, cobalt-60 has been detected in samples obtained from the indicator location (SD). Cobalt-60 has not been detected since 2003. Trend graphs of cobalt-60 and cesium-137 in silt appear in Figures 4-4 and 4-5.
The concentrations of cesium-137 detected indicate a continual decreasing trend as seen for over two decades. The detection of cesium-137 in both control and indicator samples and decreasing levels indicate that the presence of cesium-137 is the result of accumulation and runoff into the river of residual weapons testing fallout. Its global presence has been well documented. During the pre-operational period, cesium-137 was detected in silt samples with an average concentration as indicated in Figure 4-5. At the control location, cesium-137 was detected with an average concentration of 205 pCi/kg. In 2015, for the first time, cesium-137 was not detected in the indicator location. The cesium-137 concentrations in silt continue to decline and fluctuate around the REMP lower limit of detection (LLD) concentration, which could account for the non-detect.
This trend will continue to be closely monitored.
53
Figure 4-4: COBALT-60 IN SILT l.OE+ 03 "C
Cl
~ l.OE+02 uQ.
l.OE+Ol
"<t" 0
0 N
\0 0
0 N
00 0
0 N
0 0
N N
0 N
"<t" 0
N
-+- Control - Chickahominy -+- Station Discharge 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 2015.
54
Figure 4-5: CESIUM-137 IN SILT
-+- Co ntro l - Chickahominy ......__ Station Discharge - Ave-Pre Op - Required LLD 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. The activities of these radionuclides indicate a steady trend. There were no radionuclides attributable to the operation of the station found 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. These results are the same as those seen over the last decade. No activity was observed in this media except for naturally occurring potassium-40.
55
4.12 Oysters Oysters were collected from three different locations.
- The results of the oyster analyses are presented in Table 3-13.
There were no gamma emitting radionuclides detected in oysters sampled except for naturally occurring potassium-40. No station related radioactivity has been detected in this media since 1991. The absence of station related radionuclides is attributable to the replacement of steam generators in 1982 and past improvements made to liquid effluent treatment systems.
4.13 Clams Clams are analyzed from three different locations. The results of the gamma spectroscopy analyses are presented in Table 3-14. Like oysters, no station related radioactivity was *detected.
4.14 Crabs A crab sample was collected in June 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 were detected in the sample. This is consistent with pre-operational data and data collected over the past decade.
56
- 5. PROGRAM EXCEPTIONS There were two REMP exceptions for scheduled sampling and analysis during 2015.
- 1. For the sample period Jan 13 - 20, samples for gross beta and iodine-131 in air were not obtained from the BASF air sampling station. The BASF air sampler was located within a substation that was permanently removed from service during the Jan 13 - 20 sample period. It was unknown to Surry Power Station that the substation was to be removed from service. Prior to the loss of power to the sampler, insufficient sample volume had accumulated to meet the lower limit of detection for gross beta and iodine-131 analyses.
- 2. For the sample period Jun 30 -Jul 7, samples for gross beta and iodine-131 in air were not obtained from the NN air sampling station. The sampler was found inoperable upon arrival at the NN air sampling station. Prior to the loss of power to the sampler, insufficient sample volume had accumulated to meet the lower limit of detection for gross beta and iodine-131 analyses.
NOTE: Due to the issues described above, Surry Power station has installed electronic monitoring devices on all REMP air samplers. These devices monitor for loss of power and low sample flow rate. If either of these conditions is
. detected on an air sampler, the device makes an immediate notification by page and e-mail. The condition can then be assessed and appropriate actions taken to prevent the loss of monitoring for a sampling period.
The 2013 Annual Radiological Environmental Operating Report was submitted with iodine-131 in air sample data omitted for the sample period February 05 through 12 for all eight sampling stations. Appendix C contains the revised analysis data table for iodine-131 in air for 2013.
57
- 6. CONCLUSIONS The results of the 2015 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 - Control and indicator location averages continue to indicate a steady relationship and trend over the long term.
> Airborne Exposure Pathway - Analysis of charcoal cartridge samples for radioiodines indicated no positive activity was detected. Quarterly gamma isotopic analyses of the composite
- particulate samples identified only naturally occurring beryllium-7 and .Potassium-40. Air particulate gross beta concentrations at all of the indicator locations for 2015 trend well with
- the control location.
> Milk - Milk samples are an important indicator measuring the effect of radioactive iodine and radionuclides in airborne releases. Cesium-137 and iodine-131 were not detected in any of the thirty-six samples. Naturally occurring potassium-40 was detected at a similar level when compared to the averages of th~ previous years.
I :
Strontium-90 was detected in two samples at an average concentration of
- 1. 78 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 potassium-40 was detected in all three samples. In the past, cesium-137 had occasionally been detected in these samples and is attributable to global fallout from past nuclear weapons testing. Cesium-137 was not detected in any of the three samples collected in 2015.
> Well Water - Well water sample analyses indicated there was no radioactivity attributable to the operation of the station. This trend is consistent throughout the monitoring period.
)- River Water - River water samples were analyzed for gamma emitting radionuclides and tritium. Only the naturally occ:urring gamma emitting radionuclides potassium-40 and thorium-228 were detected. Tritium was not detected.
)- Silt - Cesium-137 was detected in the control sample and not in the indicator sample. The presence of cesium-137 is attributable to residual weapons testing fallout and its presence has been well documented. Cobalt-60 has not been detected since 2003.
- 58
);>- Shoreline Sediment - Naturally occurring radionuclides were detected at concentrations equivalent to normal* background activities. There were no radionuclides attributable to tb.e operation of Surry Power Station found in any sample.
Aquatic Biota
);>- Fish - As expected, naturally occurring potassium-40 was detected. There were no other gamma emitting radionuclides detected in any of the fish samples.
>-- Oysters and Clams - Other than naturally occurring potassium-40, there were no other gamma emitting radionuclide*s detected in any of the oyster or clam samples. *
);>- Crabs - Naturally occurring potassium-40 was detected. No other gamma emitting radionuclides were detected.
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, "Envrronmental 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)".
I
~
- 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.
61
APPENDICES 62
APPENDIX A: LAND USE CENSUS Year 2015 63
LAND USE CENSUS*
Surry Power Station, Surry County, Virginia January 1 to December 31, 2015 Page 1 of 1 Nearest Nearest Nearest Nearest Sector Direction Resident Garden** Cow Goat A N 4.1@ 10° (a) (a) (a)
B NNE 1.9 @32° (a) (a) (a) c NE 4.7@35° (a) (a) (a)
D ENE (a) (a) (a) (a)
E E (a) (a) (a) (a)
F ESE (a) (a) (a) (a)
G SE 2.8@ 142° (a) (a) (a)
H SSE 2.7@ 158° 2.7@ 158° (a) (a)
J s l.7@181° 2.0@ 183° (a) (a)
K SSW 1.9@ 192° 1.9@ 192° 4.8@200° (a)
L SW 2.3@221° 4.7@228° (a) (a)
M WSW 0.4@244° 3.6@245° (a) (a)
N w 3.1 @260° 3.4@260° (a) (a) p WNW 4.9@283° (a) (a) (a)
Q NW 4.6@321° (a) (a) (a)
R NNW 3.8 @338° 4.4@334° 3.7@336° (a)
- 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 broadleaf vegetation.
(a) None 64
APPENDIX B:
SUMMARY
OF INTERLABORATORY COMPARISONS Year 2015 65
INTRODUCTION This appendix covers the Interlaboratory Comparison Program (ICP) of Teledyne Brown Engineering (TBE). TBE use QA/ QC samples provided by Eckert & Ziegler Analytics, Inc., Environmental Resource Associates (ERA) and the Mixed Analyte Performance Evaluation Program (MAPEP) to monitor the quality of analytical processing associated with the REMP. Each provider has a documented Quality Assurance program and the capability to prepare Quality Control materials traceable to the National Institute of Standards and Technology (NIST). The providers supply the samples to TBE, and upon receipt, the laboratories perform the analyses in a normal manner. The results are then reported to the provider for evaluation. The suite of QA/QC samples is designed to provide sample media and radionuclide combinations that are offered by the providers and included in the REMP and typically includes:
>- milk for gamma nuclides and low-level iodine-131 analyses,
>- milk for Sr-89 and Sr-90 analyses,
>- water for gamma nuclides, low-level iodine-131, and gross beta analyses,
>- water for tritium, Sr-89, and Sr-90 analyses,
>- cartridge for I-131 analyses,
>- air filter for gamma nuclide, gross beta, and Sr-90 analyses.
The accuracy of each result reported to Eckert & Ziegler Analytics, Inc. is' measured by the ratio of the TBE result to the known value. Accuracy for all other results is based on statistically derived acceptance ranges calculated by the providers.
- An investigation is undertaken whenever the ratio or reported result fell outside of the acceptance range.
RESULTS The TBE ICP results are included in the following tables for the first through the fourth quarters of 2015. Some analyses did not meet the acceptance criteria. TBE initiated non-conformance reports (NCRs) to document and address the analyses.
The results of the NCRs are as follows.
- 1. NCR 15-09, ERA water sample RAD-101 faile~ Sr-89 and Sr-90. For Sr-89, the TBE value of 45.2 pCi/L was lower than the known value of 63.2 pCi/L, failing below the lower acceptance limit of 51.1 pCi/L. For Sr-90, the TBE value of 28.0 pCi/L was lower than the known value of 41.9pCi/L, failing below the lower acceptance limit of 30.8 pCi/L. A reanalysis could not be performed because the sample was consumed in the original analysis. Raw and QC data associated with the analysis were reviewed. The original strontium gravimetric yields were very high at 97.6 % and 103.8%. Yields this high indicates the presence of excess calcium and would likely benefit 66
- from a second fuming HNOs separation. Typical strontium yields run around 60% or 70%. Higher yields would result in lower activities. Going forward, a second fuming HNOs separation will be performed on samples with high yields.
- 2. NCR 15-18, Eckert & Ziegler Analytics air particulate filter sample El 1237 failed Cr-51 .. The TBE value of 323 pCi was higher than the known value of 233 pCi. The resultant ratio was 1.39 failing above the high acceptance limit of 1.30. All raw and associated QC data were reviewed and fell within acceptance criteria limits. The air particulate sample is counted at a distance above the surface of the detector to avoid detector summing which could alter the results. Chromium-51 has the shortest half-life (27.7 days) and the lowest gamma energy (320.08 keV) of this mixed nu~lide sample.
Additionally, Cr-51 has only one gamma energy and also has a low intensity (9.38 gamma photons produced per 100 disintegrations). rrhis geometry produces a larger error for the Cr-51 and other gamma emitters as any distance from the detector decreases the counting rate and the probability of accurately detecting the nuclide energy. Taking into consideration the uncertainty, the activity of Cr-51 overlaps with the known value at a ratio of 1.19, which would statistically be considered acceptable. TBE believes this failure is specific to the sample and has no impact on client samples.
- 3. NCR 15-21, MAPEP filter sample 15-RdF33 failed Sr-90. The TBE value of 1.5 Bq/sample was lower than the known value of 2.18 Bq/sample, failing below the lower acceptance limit of 1.53. A rerun of the sample was acceptable, 1.94 Bq, however still below 2.18 Bq. It appears that the Sr-90 was lost during the separation chemistry although the exact cause could not be identified. In the past, MAPEP has added substances (unusual compounds found in DOE complexes) to various matrices that have resulted in incomplete removal of the isotope of interest for the laboratories analyzing the cross 'checks. This is possibly the case with this sample. Many compounds, if not properly accounted for or removed in the sample matrix, can cause interferences to either indicate lower or higher activity. TBE will .
no longer analyze the air particulate Sr-90 through MAPEP but will participate in the Analytics cross check program to perform Sr-90 in the air particulate matrix.
67
ECKERT & ZIEGLER ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING ENVIRONMENTAL SERVICES (PAGE1 OF3)
Identification Reported Known Ratio (c)
MonthNear Number Matrix Nuclide Units Value(a) *Value (b) TB E/Analytics Evaluation (d)
March 2015 E11181 Milk Sr-89 pCi/L 88.9 97.2 0.91 A Sr-90 pCi/L 12.2 17.4 0.70 w E11182 Milk 1-131 pCi/L 61.3 65 0.94 A Ce-141 pCi/L 104 113 0.92 A Cr-51 pCi/L 265 276 0.96 A Cs-134 pCi/L 138 154 0.90 A Cs-137 pCi/L 205 207 0.99 A Co-58 pCi/L 178 183 0.97 A Mn-54 pCi/L 187 188 0.99 A Fe-59 pCi/L 182 177 1.03 A Zn-65 pCi/L 345 351 0.98 A Co-60 pCi/L 379 405 0.94 A E11184 Filter Ce-141 pCi 107 85.0 1.26 w Cr-51 pCi 261 224 1.17 A Cs-134 pCi 74.6 77.0 0.97 A Cs-137 pCi 99.6 102 0.98 A Co-58 pCi 99.8 101 0.99 A Mn-54 pCi 99.2 96.9 1.02 A Fe-59 pCi 109 119 0.92 A Zn-65 pCi 188 183 1.03 A Co-60 pCi 200 201 1.00 A E11183 Charcoal 1-131 pCi 82.9 85.4 0.97 A June 2015 E11234 Milk Sr-89 pCi/L 94.9 92.6 1.02 A Sr-90 pCi/L 14.3 12.7 1.13 A E11238 Milk 1-131 pCi/L 93.2 95.9 0.97 A Cr-51 pCi/L 349 276 1.26 w Cs-134 pCi/L 165 163 1.01 A Cs-137 pCi/L 143.0 125 1.14 A Co-58 pCi/L 82.0 68.4 1.20 A Mn-54 pCi/L 113 101 1.12 A Fe-59 pCi/L 184 151 1.22 w Zn-65 pCi/L 269 248 1.08 A Co-60 pCi/L 208 193 1.08 A Footnotes are on page 3 of 3.
68
ECKERT & ZIEGLER ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING ENVIRONMENTAL SERVICES (PAGE20F3)
Identification *Reported Known Ratio (c)
Month/Year Number Matrix Nuclide Units Value(a) Value (b) IBE/Analytics Evaluation (d)
June 2015 E11237 Filter Cr-51 pCi 323 233 1.39 N (1)
Cs-134 pCi 139 138 1.01 A Cs-137 pCi 111 106 1.05 A Co-58 pCi 54.0 57.8 0.93 A Mn-54 pCi 96.8 84.9 1.14 A Fe-59 pCi 162 128 1.27 w Zn-65 pCi 198 210 0.94 A Co-60 pCi 178 163 1.09 A E11236 Charcoal 1-131 pCi 93.9 80 1.17 A September 2015 E11289 Milk Sr-89 pCi/L 95.7 99.1 0.97 A Sr-90 pCi/L 15.4 16.4 0.94 A E11290 Milk 1-131 pCi/L 94.9 99.9 0.95 A Ce-141 pCi/L 228 213 1.07 A Cr-51 pCi/L 499 538 0.93 A Cs-134 pCi/L 208 212 0.98 A Cs-137 pCi/L 270 255 1.06 A Co-58 pCi/L 275 263 1.05 A Mn-54 pCi/L 320 290 1.10 A Fe-59 pCi/L 255 226 1.13 A Zn-65 pCi/L 392 353 1.11 A Co-60 pCi/L 350 330 1.06 A E11292 Filter Ce-141 pCi 104 85.1 1.22 w Cr-51 pCi 262 215 1.22 w Cs-134 pCi 86.1 . 85 1.02 A Cs-137 pCi 93.0 102 0.91 A Co-58 pCi 106 105.0 1.01 A Mn-54 pCi 117 116 1.01 A Fe-59 pCi 94.8 90 1.05 A Zn-65 pCi 160 141 1.13 A Co-60 pCi 146 132 1.11 A E11291 Charcoal 1-131 pCi 85.9 81.7 1.05 A December 2015 E11354 Milk Sr-89 pCi/L 96.2 86.8 1.11 A Sr-90 pCi/L 14.8 12.5 1.18 A Footnotes are on page 3 of3.
69
ECKERT & ZIEGLER ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING ENVIRONMENTAL SERVICES (PAGE30F3)
Identification Reported Known Ratio (c)
Month/Year Number Matrix Nuclide Units Value(a) Value (b) IBE/Analytics Evaluation (d)
December 2015 E11355 Milk 1-131 pCi/L 95.1 91.2 1.04 A Ce-141 pCi/L 117 129 0.91 A Cr-51 pCi/L 265 281 0.94 A Cs-134 pCi/L 153 160 0.96 A Cs-137 pCi/L 119 115 1.03 A Co-58 pCi/L 107 110 0.97 A Mn-54 pCi/L 153 145 1.06 A Fe-59 pCi/L 117 108 1.08 A Zn-65 pCi/L 261 248 1.05 A Co-60 pCi/L 212 213 1.00 A E11357 Filter Ce-141 pCi 89.9 84.0 1.07 A Cr-51 pCi 215 184 1.17 A Cs-134 pCi 103 105 0.98 A Cs-137 pCi 76.6 74.8 1.02 A Co-58 pCi 76.2 71.9 1.06 A Mn-54 pCi 91.4 94.4 0.97 A Fe-59 pCi 78.6 70.3 1.12 A Zn-65 pCi 173 162 1.07 A Co-60 pCi 138 139 0.99 A E11356 Charcoal 1-131 pCi 74.9 75.2 1.00 A E11422 Filter Sr-89 pCi 98.0 96.9 1.01 A Sr-90 pCi 10.0 14.0 0.71 w (1) Cr-51 has the shortest half-life and the weakest gamma energy of the mixed nuclide sample, which produces a large error. Taking into account the error, the lowest value wauld be 119% of the reference value, which wauld be considered acceptable. NCR 15-18 (a) Teledyne Brown Engineering reported result.
(b) 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.
(c) Ratio of Teledyne Brown Engineering to Analytics results.
(d) 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 or 1.20-1.30. N =Not Acceptable, reported result falls outside the ratio limits of< 0. 70 and> 1.30.
70
DOE's MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)
TELEDYNE BROWN ENGINEERING ENVIRONMENTAL SERVICES (PAGE1OF1)
Identification Reported Known Acceptance Month/Year Number Media Nuclide Units Value (a) Value (b) Range Evaluation (c)
March 2015 15-GrF32 Filter Gr-S Sq/sample 0.758 0.75 0.38-1.13 A 15-RdF32 Filter Sr-90 Sq/sample -0.0991 (1) A
. September 2015 15-GrF33 Filter Gr-S Sq/sample 1.340 1.56 0.78- 2.34 A 15-RdF33 Filter Sr-90 Sq/sample 1.5 2.18 1.53 - 2.83 N (2)
(1) False positive test.
(2) Sr-90 ll\laS lost during separation, possible from substance added by MAPEP. NCR 15-21 (a) Teledyne Brown Engineering reported result.
(b) 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.
(c) DOE/MAPEP evaluation: A=acceptable, W=acceptable with 11Varning, N=not acceptable.
71
ERA ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING ENVIRONMENTAL SERVICES (PAGE1 OF1)
Identification Reported Known Acceptance Month/Year Number Media Nuclide Units Value (a) Value (b} Limits Evaluation (c)
May 2015 RAD-101 Water Sr-89 pCi/L 45.2 63.2 51.1 - 71.2 N (1)
Sr-90 pCi/L 28.0 41.9 30.8 - 48.1 N (1)
Ba-133 pCi/L 80.6 82.5 63.9- 90.8 A Cs-134 pCi/L 71.7 75.7 61.8 - 83.3 A Cs-137 pCi/L 187 189 170-210. A Co-60 pCi/L 85.7 84.5 76.0- 95.3 A Zn-65 pCi/L 197 203 183 - 238 A Gr-B pCi/L 28.8 32.9 21.3 - 40.6 A 1-131 pCi/L 23.5 23.8 19.7 - 28.3 A H-3 pCi/L 3145 3280 2770- 3620 A November 2015 RAD-103 Water Sr-89 pCi/L 40.9 35.7 26.7-42.5 A Sr-90 pCi/L 29.3 31.1 22.7 - 36.1 A Ba-133 pCi/L 31.5 32.5 25.9- 36.7 A Cs-134 pCi/L 59.65 62.3 50.6 - 68.5 A Cs-137 pCi/L 156 157 141 -175 A Co-60 pCi/L 70.6 71.1 64.0-80.7 A Zn-65 pCi/L 145 126 113 -149 A I I Gr-B pCi/L 42.0 36.6 24.1 - 44.2 A 1-131 pCi/L 24.8 26.3 21.9- 31.0 A H-3 pCi/L 21100 21300 18700 - 23400 A (1) Yield on the high side of acceptance range indicates possibility of calcium interference. NCR 15-09 (a) Teledyne Brown Engineering reported result.
(b) 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.
(c) ERA evaluation: A=acceptable. Reported result falls within the Warning Limits. NA=not acceptable. Reported result falls outside of the Control Limits. CE=check for Error. Reported result falls within the Control Limits and outside of the Warning Limit.
72
APPENDIX C: ERRATA/CORRECTIONS TO PREVIOUS REPORTS 73
The 2013 Annual Radiological Environmental Operating Report was submitted with iodine-131 in air sample data omitted for the sample period Febniaiy 05 through 12 for all eight sampling stations. The following pages contain the revised analysis data table for iodine-131 in air for 2013.
74
TABLE 3-4: IODINE-131 CONCENTRATION IN FILTERED AIR Surry Power Station, Surry County, Vrrginia-2013 1.0E-3 pCi/m3 +/- 2 Sigma Page I of2 COLLECTION SAMPLING LOCATIONS DATE SS HIR BC ALL CP BASF FE NN-C January 08 14.0 +/- 25.2 13.9 +/-.25.0 14.2 +/- 25.6 13.5 +/- 24.3 -6.29 +/- 24.6 -6.12 +/- 2.39 -6.32 +/- 24.7 -6.30 +/- 24.6 January 15 3.16 +/- 22.2 3.14+/-22.1 3.16 +/- 22.2 3.08 +/- 21.7 -6.16 +/- 24.3 -6.00 +/- 23.7 -6.16 +/- 24.3 -6.19 +/- 24.5 January 22 5.59 +/- 17.0 5.45 +/- 16.6 5.55 +/- 16.9 5.43 +/- 16.5 12.6 +/- 16.9 12.2 +/- 16.3 12.5 +/- 16.6 12.5 +/- 16.7 January 29 -4.76 +/- 16.9 -4.62 +/- 16.4 -4.72 +/- 16.7 -4.63 +/- 16.4 3.56 +/- 19.9 2.71 +/- 15.1 2.72 +/- 15.2 2.80 +/- 15.6 February 05 2.62 +/- 19.1 2.55 +/- 18.7 2.64 +/- 19.3 2.54 +/- 18.6 -10.3 +/- 21.2 -7.94 +/- 16.3 -8.04 +/- 16.5 -8.16 +/- 16.8 February 12 -6.39 +/- 10.9 -6.23 +/- 10.7 -6.38 +/- 10.9 -6.22 +/- 10.7 -0.14 +/- 17.1 -0.14 +/- 16.8 -0.14 +/- 16.9 -0.14+/-17.1 February 19 -14.6 +/- 13.9 -14.4 +/- 13.6 -14.7 +/- 13.9 -14.3 +/- 13.6 -7.30 +/- 15.1 -7.10 +/- 14.7 -7.24 +/- 15.0 -7.39 +/- 15.3 February 26 6.77 +/- 18.1 6.65 +/- 17.7 6.82 +/- 18.2 6.64 +/- 17.7 -2.83 +/- 16.7 -2.76 +/- 16.2 -2.80 +/- 16.5 -2.85 +/- 16.8 March 05 -13.6 +/- 21.3 -13.3 +/- 20.8 -13.6 +/- 21.3 -13.3 +/- 20.7 7.00 +/- 13.3 6.87 +/- 13.1 6.94 +/- 13.2 7.09 +/- 13.5 March 12 0.55 +/- 10.0 0.54 +/- 9.80 0.55 +/- 10.0 0.54 +/- 9.76 7.68 +/- 22.8 7.57 +/- 22.5 7.69 +/- 22.9 7.80 +/- 23.2 March 18 -1.09+/-15.1 -1.07 +/- 14.8 -1.09 +/- 15.1 -1.06 +/- 14.7 6.24 +/- 17.9 6.14 +/- 17.6 6.22 +/- 17.8 6.33 +/- 18.1 March 26 -6.94 +/- 11.3 -6.81 +/- 11.2 -6.96+/-11.3 -6.78 +/- 11.0 9.48 +/- 12.9 9.39 +/- 12.7 9.45 +/- 12.8 9.60 +/- 13.0 April 02 -4.38 +/- 17.1 -4.30 +/- 16.7 -4.38 +/- 17.1 -4.25 +/- 16.6 -9.71 +/- 21.1 -9.55 +/- 20.8 -9.72 +/- 21.1 -9.83 +/- 21.4 April 09 -11.0 +/- 22.3 -10.8 +/- 21.9 -10.9 +/- 22.1 -10.7 +/- 21.7 9.82 +/- 22.3 9.67 +/- 23.0 9.81 +/- 23.3 9.79 +/- 23.2 April 16 -4.35 +/- 12.5 -4.32 +/- 12.4 -4.31 +/- 12.4 -4.24 +/- 12.2 0.84 +/- 13.2 0.85 +/- 13.3 0.85 +/- 13.3 0.87 +/- 13.7 April 23 -8.47 +/- 20.9 -8.35 +/-.20.6 -8.46 +/- 20.9 -8.26 +/- 20.4 14.3 +/- 17.9 14.1 +/- 17.7 14.3 +/- 17.9 14.5 +/- 18.2 April 30 -4.19 +/- 18.6 -4.14 +/- 18.3 -4.20 +/- 18.6 -4.08 +/- 18.1 -6.30 +/- 16.8 -6.19 +/- 16.5 -6.28 +/- 16.8 -6.42 +/- 17.1 May 07 9.96 +/- 10.4 9.78 +/- 10.2 9.98 +/- 10.4 9.68 +/- 10.1 -0.27 +/- 10.5 -0.27 +/- 10.5 -0.28 +/- 10.7 -0.28 +/- 10.7 May 14 -8.22 +/- 12.2 -8.07 +/- 12.0 -8.28 +/- 12.3 -8.05 +/- 12.0 -6.91 +/- 15.2 -6.79 +/- 14.9 -6.90 +/- 15.2 -7.40 +/- 15.5 May 21 -6.95 +/- 22.9 -6.82 +/- 22.5 -6.92 +/- 22.9 -6.77 +/- 22.3 4.54 +/- 21.8 4.50 +/- 21.6 4.55 +/- 21.9 4.56 +/- 21.9 May 28 -10.7 +/- 22.2 -10.5 +/- 21.9 -10.7 +/- 22.2 -10.5 +/- 21.9 16.0 +/- 21.0 16.0 +/- 21.0 16.1 +/- 21.2 16.3 +/- 21.4 June 05 -9.68 +/- 15.9 -9.45 +/- 15.5 -9.62 +/- 15.8 -9.52 +/- 15.6 -1.98 +/- 11.7 -1.95 +/- 11.5 -1.98 +/- 11.7 -1.97 +/- 11.7 June 10 10.2 +/- 24.2 10.5 +/- 23.7 -8.00 +/- 28.9 10.4 +/- 23.5 -7.03 +/- 24.0 -6.76 +/- 23.1 -6.97 +/- 23.8 -6.96 +/- 23.8 June 17 -0.08 +/- 12.6 -0.08 +/- 12.4 -0.08 +/- 12.0 -0.08 +/- 11.6 5.10 +/- 15.5 4.18 +/- 12.7 4.31 +/- 13.1 4.23 +/- 12.9 June 24 -7.35 +/- 15.3 -7.19 +/- 14.9 -7.36 +/- 15.3 -7.16 +/- 14.9 6.09 +/- 13.9 5.94 +/- 13.5 6.09 +/- 13.9 6.09 +/- 13.9 I
75
TABLE 3-4: IODINE-131 CONCENTRATION IN FILTERED AIR Suny Power Station, Suny County, Virginia -2013 1.0E-3 pCi/m3 +/- 2 Sigma Page 2 of2 COLLECTION SAMPLING LOCATIONS DATE SS HIR BC ALL CP BASF FE NN-C July 02 11.1+/-23.7 11.4 +/- 24.3 11.6 +/- 24.8 11.3 +/- 24.2 4.60 +/- 29.6 4.48 +/- 28.8 4.56 +/- 29.2 4.58 +/- 29.5 July 09 -8.65 +/- 25.8 -8.27 +/- 24.7 -8.42 +/- 25.1 -8.21 +/- 24.5 -0.50 +/- 23.9 -0.50 +/- 23.6 -0.50 +/- 23.9 -0.50 +/- 24.0 July 15 -1.57 +/- 14.4 -1.55 +/-'14.3 -1.57 +/- 14.4 -1:53 +/- 14.1 -9.03 +/- 14.1 -8.93 +/- 14.0 -9.06 +/- 14.1 -8.92 +/- 13.9 July 23 6.48 +/- 13.8 6.32 +/- 13.5 6.39 +/- 13.6 6.23 +/- 13.3 -2.91 +/- 14.5 -2.90 +/- 14.4 -2.93 +/- 14.6 -2.90 +/- 14.4 July 30 -9.09 +/- 32.1 -8.86 +/- 31.3 -8.99 +/- 31.8 -8.83 +/- 31.2 10.7 +/- 22.0 10.6 +/- 21.8 10.7 +/- 22.0 10.6 +/- 21.8 August 06 -14.8 +/- 24.1 -14.5 +/- 23.6 -14.7 +/- 23.9 -14.5 +/- 23.6 15.4 +/- 20.3 15.3 +/- 20.1 15.4 +/- 20.2 15.1 +/- 19.8 August 13 -15.4 +/- 16.6 -15.1 +/- 16.3 -15.8 +/- 17.0 -15.4 +/- 16.6 2.44 +/- 18.2 2.44 +/- 18.2 2.44 +/- 18.2 2.49 +/- 18.5 August 20 -12.7 +/- 16.0 -12.4 +/- 15.6 -12.5 +/- 15.7 -12.3 +/- 15.5 -8.13 +/- 18.4 -8.08 +/- 18.3 -8.14 +/- 18.5 -8.06 +/- 18.3 August 26 -2.12 +/- 18.5 -2.05 +/- 17.9 -2.09 +/- 18.2 -2.04 +/- 17.8 8.35 +/- 17.7 8.30 +/- 17.6 8.36 +/- 17.7 8.23 +/- 17.5 September 03 17.5 +/- 22.9 17 +/- 22.3 17.3 +/- 22.7 16.9 +/- 22.1 -4.87 +/- 20.2 -4.83 +/- 20.1 -4.86 +/- 20.2 -4.77 +/- 19.8 September 10 19.4 +/- 25.1 18.9 +/- 24.5 19.2 +/- 24.8 18.9 +/- 24.4 31.5 +/- 30.4 31.3 +/- 30.2 31.5 +/- 30.4 30.9 +/- 29.8 September 17 -0.75 +/- 16.8 -0.73 +/- 16.4 -0.74 +/- 16.6 -0.72 +/- 16.3 1.40 +/- 15.9 1.37 +/- 15.6 1.39 +/- 15.8 1.37 +/- 15.5 September 24 6.57 +/- 22.7 6.37 +/- 22.1 6.47 +/- 22.4 6.35 +/- 22.0 -20.5 +/- 22.2 -20.1 +/- 21.8 -20.4 +/- 22.2 -20.0 +/- 21.8 October 01 14.9 +/- 28.3 14.4 +/- 27.4 14.6 +/- 27.9 14.3 +/- 27.3 -8.57 +/- 29.0 -8.46 +/- 28.6 -8.56 +/- 28.9 -8.28 +/- 28.0 October 08 24.2 +/- 24.2 23.5 +/- 23.4 23.9 +/- 23.9 23.7 +/- 23.6 -5.99 +/- 24.3 -5.90 +/- 23.9 -5.94 +/- 24.0 -5.84 +/- 23.6 October 15 -2.11+/-11.2 -2.05 +/- 10.9 -2.01 +/- 10.7 -1.99 +/- 10.6 -5.18 +/- 10.7 -5.13 +/- 10.6 -5.21 +/- 10.8 -5.00 +/- 10.3 October 22 22.4 +/- 20.4 21.8 +/-*19.8 22.2 +/- 20.2 22.0 +/- 20.0 12.5 +/- 18.0 12.3 +/- 17.8 12.4 +/- 18.0 12.4 +/- 17.9 October 29 -18.4 +/- 39.6 -18 +/- 38.6 -18.2 +/- 39.2 -18.2 +/- 39.0 -0.85 +/- 36.3 -0.84 +/- 35.7 -0.85 +/- 36.3 -0.84 +/- 35.6 November05 -22.8 +/- 35.1 -22.4 +/- 34.5 -22.9 +/- 35.3 -22.5 +/- 34.6 -3.72 +/- 40.~ -3.69 +/- 39.9 -3.72 +/- 40.2 -3.57 +/- 38.6 November 12 1.30 +/- 20.4 1.28 +/- 20.0. 1.30 +/- 20.4 1.28 +/- 20.2 0.73 +/- 20.1 0.72 +/- 19.9 0.72 +/- 19.9 0.72 +/- 19.8 November 19 -3.68 +/- 18.1 -3.57 +/- 17.5 -3.63 +/- 17.8 -3.62 +/- 17.8 -5.05 +/- 21.8 -5.04 +/- 21.7 -5.08 +/- 21.9 -4.92 +/- 21.2 November26 -5.84 +/- 39.0 -5.67 +/- 37.8 -5.77 +/- 38.5 -5.70 +/- 38.0 -0.67 +/- 41.0 -0.66 +/- 40.8 -0.67 +/- 41.1 -0.65 +/- 40.3 December03 4.55 +/- 32.9 4.43 +/- 32.0 4.49 +/- 32.4 4.42 +/- 31.9 -7.08 +/- 33.4 -7.01 +/- 33.0 -7.08 +/- 33.3 -6.99 +/- 32.9 December 10 -14~0 +/- 25.7 -13.6 +/- 24.9 -13.8 +/- 25.5 -13.7 +/- 25.2 -16.1 +/- 20.0 -15.9 +/- 19.8 -16.2 +/- 20.0 -15.7 +/- 19.5 December 16 -28.4 +/- 29.8 -27.6 +/- 29.0 -28.1 +/- 29.5 -27.6 +/- 29.0 -19.7 +/- 28.8 -19.4 +/- 28.4 -19.6 +/- 28.7 -19.3 +/- 28.2 December24 17.0 +/- 30.4 16.6 +/- 29.7 17.5 +/- 31.3 17.3 +/- 30.8 -10.3 +/- 28.5 -10.2 +/- 28.1 -10.3 +/- 28.4 -10.1 +/- 27.9 December31 -30.8 +/- 43.0 -30.2 +/- 42.3 -30.2 +/- 42.1 -29.8 +/- 41.6 -25.9 +/- 33.4 -25.6 +/- 33.0 -25.8 +/- 33.3 -25.3 +/- 32.7 76
VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 May 2, 2016 United States Nuclear Regulatory Commission Serial No.16-163 Attention:* Document Control Desk SS&L/TSC RO Washington, DC 20555-0001 Docket Nos. 50-280 50-281 72-2 72-55 License Nos. DPR-32 DPR-37 SNM-2501 VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNITS 1AND2 INDEPENDENT SPENT FUEL STORAGE INSTALLATION ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT Surry Units 1 and 2 Technical Specification 6.6.B.2 requires the submittal of an Anhual 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, 2015 through December 31, 2015, which includes environmental monitoring for the Surry ISFSI.
If you have any further questions, please contact Jason Eggart at 757-365-2010.
Douglas . Lawrence Director Safety & Licensing Surry Power Station Attachment Commitments made in this letter: None
Serial No.16-163 Docket Nos.: 50-280 50-281 72-2 72-55 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 Division of Radiological Health 109 Governor Street, Room 730 Richmond, Virginia 23219
Serial No.16-163 Docket Nos.: 50-280 50-281 72-2 72-55 ATTACHMENT 1 2015 Annual Radiological Environmental Operating Report SURRY POWER STATION UNITS 1AND2 VIRGINIA ELECTRIC AND POWER COMPANY
Surry Power Station 2015 Annual Radiological Environmental Operating Report
Dominion Surry Power Station Radiological Environmental Monitoring Program January 1, 2015 to December 31, 2015
Annual Radiological Environmental Operating Report Surry Power Station January 1, 2015 to December 31, 2015 Prepared by: f /: 1JI~
- - - - - - - - - - - +P.*F.-Blount ------------
Health Physicist P.R. Harris Supervisor Radiological Analysis
,,,...~} , / ,/"l )
Reviewed by: ------:1~-~------(.....-c-_.--,I"-/_._,.,_~--=-=r------
__, W. A<-Terry--z:;:T-Supervisor Health Physics Technical Services
___,n~~Ai~'"°----?J Approved by: _ _ _
-r __ fa,-ft'j::ia..,.......j11_Jc_*_ -_ _
J.\VEggart Manager Radiological Protection and Chemistry
Table of Contents PREFACE .......................................................................................................... ,................................... 4
- 1. EXECUTIVE
SUMMARY
............................................................................................................... 5
- 2. PROGRAM DESCRIPTION ............................................................................................................ 7 2.1 Introduction ............................................................................................................................. ?
2.2 Sampling and Analysis Program ...................................................................... :...................... 8
- 3. ANALYTICAL RESULTS ............................................................................................................. 20 3.1 Summary of Results .............................................................................................................. 20 3.2 Analytical Results of 2015 REMP Samples ........................................................................ .27
- 4. DISCUSSION OF RESULTS ...................................................................................................... 48 4.1 Gamma Exposure Rate ........................................................................................................_.48 4.2 Airborne Gross Beta.............................................................................................................. 49 4.3 Airborne Radioiodine ............................................................................................................ 51 4.4 Air Particulate Gamma ......................................................................................................... 51 4.5 cow Milk .............................................................................................................................. 52 4.6 Food Products ....................................................................................................................... 52 4.7 Well Water ............................................................................................................................ 52 4.8 RiverWater ........................................................................................................................... 52 4.9 Silt .........................................................................................................-................................ 53 4.10 Shoreline Sediment ............................................................................................................. 55 4.11 Fish ................................................................. :.................................................................... 55 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 APPENDIX C: ERRATA .................................................................................... 73 3
PREFACE This report is submitted as required by Technical Specification 6.6.B.2, Annual Radiological Environmental 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, Item 1.3.1.
4
- 1. EXECUTIVE
SUMMARY
This document is a detailed report of the 2015 Surry Power Station Radiological Environmental Monitoring Program (REMP).
- Radioactivity levels from January 1 through December 31, 2015, 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 radiologicai 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 sampJes show how much radiation. is contributed to the enVironment by the station .
.Indicator samples are taken from areas dose 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 Global Dosimetry Solutions, Inc. provides thermoluminescent dosimetry (TLD) services. Participation in an Interlaboratory Comparison Pr~gram 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 Commissfon (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 5
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.
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. 1Jie 2015 airborne results were similar 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 potassium~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. The cesium-137 activity was present in the control and. indicator locations and is attributable to global fallout from past nuclear weapons testing and nuclear accidents such as Chernobyl.
Shoreline sed:tinent, which may provide a direct exposure pathway, contained no station related* radionuclides. Naturally occurring radionuclides potassium, radium and thorium were detected at average environmental levels. The terrestrial exposure pathway includes milk and food products. Iodine-131 was
- riot detected in any 2015 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 man-made radionuclides were detected in food product samples. Consistent with historical data, naturally occurring potassium-40 was detected in milk and food.
products. The direct exposure pathway measures environmental radiation doses using TLDs~ TLD results have remained relatively constant over the years.
During 2015, 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 2015 was 0.030 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 federcll 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 2015 Surry Power Station operational Radiological Environmental Monitoring Program (REMP). The Dominion 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 D*ecember 22, 1972, and Unit 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 Technical 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 against unexpected or undefined environmental processes which might allow undue accumulation of radioactivity in the environment, a program for monitoring the station environs is also included in Surry Power Station Technical Specifications.
Dominion personnel are responsible for collecting the various indicator and control environmental samples. Global Dosimetry Solutions Incorporated is responsible for processing the TLDs. Teledyne Brown Engineering is responsible
- for sample analyses. The results of the analyses are used to determine if changes in radioactivity levels may be attributable to station operations. Measured values are compared with control values, which vary with time due to external events, such as cosmic ray bombardment, nuclear weapons test fallout and seasonal variations of naturally occurriilg radionuclides. Data collected prior to station .
operation is used to indicate the degree of natural variation to be expected. This pre-operational data is compared with data collected during the operational phase to assist in evaluating any radiological impact of station operation.
Occasionally, samples of environmental media 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).
7
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 2015 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 tli~ 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 Table 2-1 summarizes the 2015 sampling program for Surry Power Station. All samples listed in Table 2-1 are taken at indicator locations except those labeled "control." Dominion personnel collect all samples listed in Table 2-1.
Table 2-2 summarizes the analysis program conducted by Teledyne Brown Engineering and Global Dosimetry Solutions 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 Global Dosimetry Solutions, located in Costa Mesa, 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-2015 RADIOLOGICAL SAMPLING STATIONS DISTANCE AND DIRECTION FROM UNIT NO. 1 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° 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 Population 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-2015 RADIOLOGICAL SAMPLING STATIONS DISTANCE AND DIRECTION FROM UNIT NO. 1 Distance Collection Sample Media Location Station Miles Direction Degrees Frequency Remarks Environmental BASF (34) 5.1 ENE 70° Quarterly Apx. 5 mile TLDs LeeHall (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 (HIR) 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 (HIR) 2.0 NNE 28° Quarterly Construction Site (CS) 0.3 E 870 Quarterly Shoreline Hog Island Reserve (HIR) 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) 1.3 NNW 341° Semi-Annually 10
Table 2-1 SURRY-2015 RADIOWGICAL SAMPLING STATIONS DISTANCE AND DIRECTION FROM UNIT NO. 1 Distance Collection Sample Media Location Station Miles Direction Degrees Frequency Remarks Milk Colonial Parkway (CP) 3.7 NNW 336° Monthly Williams (WMS) 27.5 s 175° Monthly Control Location Fpps (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 Lawne's Creek (LC) 2.4 SE 131° 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 (JI) 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
Table 2-2 SURRY-2015 SAMPLE ANALYSIS PROGRAM SAMPLE MEDIA FREQUENCY ANALYSIS LLD* REPORT UNITS Thermoluminescent Quarterly Gamma Dose 2 mR/Std. Month Dosimetry (TLD) 3 Air Iodine Weekly I-131 0.07 pCi/m 3
Air Particulate Weekly Gross Beta 0.01 pCi/m 3
Quarterly (a) Gamma Isotopic pCi/m 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 Co-58 15 Fe-59 30 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 Gamma Isotopic pCi/L Mn-54 15 Co-58 15 Fe-59 30 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 -2015 SAMPLE ANALYSIS PROGRAM 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 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 Co-58 130 Fe-59 260 Co-60 130 Zn-65 260 Cs-134 130 Cs-137 150 Clams Semi-Annually Gamma Isotopic pCi/kg- wet Mn-54 130 Co-58 130 Fe-59 260 Co-60 130 Zn-65 260 Cs-134 130 Cs-137 150 Crabs Annually Gamma Isotopic pCi/kg- wet Mn-54 130 Co-58 130 Fe-59 260 Co-60 130 Zn-65 260 Cs-134 130 Cs-137 150 Footnotes located at end of table.
13
Table 2-2 SURRY-2015 SAMPLE ANALYSIS PROGRAM SAMPLE MEDIA FREQUENCY ANALYSIS LLD* REPORT UNITS Fish Semi-Annually Gamma Isotopic pCi/kg- wet Mn-54 130 Co-58 130 Fe-59 260 Co-60 130 Zn-65 260 Cs-134 130 Cs-137 150 Food Products Annually Gamma Isotopic pCi/kg- wet I-131 60 Cs-134 60 Cs-137 80 Note: This table is not a complete listing of nuclides that can be detected and reported. Other peaks that are are measurable and identifiable, together with the above 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
\
WSW \
ESE SW Legend
- State TLD Sites Figure 1. Surry Radiological Monitoring Locations
Figure 2. Surry Emergency Plan Map e Air Sampling Stations e Nearest Residents e TLD Sampling e Nearest Milk Animal e Nearest Garden Aquatic Samples Original © 1991 by ADC of Alexandria, Inc., 6440 General Green Way, Al exandria, VA 223 12. USED WITH PERMISS ION . No other reproduction may be made without the written permission of ADC .
SSE w
00 e
9 Figure 4.
Air Sampling Stations rLosampling e
9 Nearest Residents NearestMilkAnimal w* .
~@ /"*<~
,. .;, -?" \
'* . ~W:;;JrF ,\
(),11\1 * -: -=:::". ,.:: ""
~ **
e Nearest Garden Crop Samples Original © 1991 by ADC of Alexandria, Inc. , 6440 General Green Way, Alexandria, VA 223 12. USED WITH PER MISS ION. No oth er reproducti on
'\*°':-./ BC
.\
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t,.,
- '\ .
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626)
- .~'fl".-,,,,,.,,.,. .-...)
l ~'* s :~IG*
may be made without th e written permission of ADC.
Figure 5. Surry Emergency Plan Map e Air Sampling Stations e Nearest Residents e TLD Sampling e Nearest Milk Animal e Nearest Garden Aquatic Samples Original © 1991 by ADC of Al exandria, Inc., 6440 General Green Way, Alexandria , VA 22312 . USE D WITH PERM ISS ION . No other reproduction may be made without the written permission of ADC .
Ciro ~'.f
.,._/ .----------'---- ) */
- 3. ANALYTICALRESULTS 3.1 Summary ofResults 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 iri 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 - 2015 Docket No. 50-280-281 Page 1 o'f6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled (Units) Type
!Total No. LLD Mean Range I Distance Name Direction I Mean Range Mean Range Reported Measurements Direct Gamma 164 2 5.7 (152/152) STA-9 0.3 mi 7.8 (4/4) 6.0 (12/12) 0 Radiation (3.4 - 8.2) E (7.3 - 8.2) (5.0 - 7.5)
TLD (mRI Std Month)
Air Gross 416 10 14.7 (359/364) BC 4.5 mi 17.1 (52/52) 15.9 (51/52) 0 Particulate Beta (2.91 - 36.3) SSW (2.94 - 36.3) (3.12 - 32.8)
(1E-3 pCi/m3) --------------------------------------------------------------------
Gamma 32 Be-7 32 130 (28/28) ALL 5.1*mi 165 (414) 141 (4/4) 0 (94.1 - 187) WSW (128 - 187) (136 - 151)
K-40 32 17.2 (5/28) HIR 2.0 mi 22.8 (1/4) <LLD 0 (10.0 - 24.6) NNE (22.8 - 22.8)
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 pq!m3)
Milk Strontium 4 (pCi!Liter)
Sr-89 4 <LLD N/A <LLD <LLD 0 Sr-90 4 1. 78 (2/4) CP 3.7 mi 1. 78 (2/4) <LLD 0 (1.76-1.80) NNW (1.76 - 1.80)
~----*-----------------------~------
Gamma 36 K-40 36 1323 (24/24) EPPS 4.8 ml '1352 (12/12) 1296 (12/12) 0 (1070 - 1570) SSW (1240 - 1570) (1130 - 1430) 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 I
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Surry Power Station, Surry County, Virginia - 2015 Docket No. 50-280-281 Page 2 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled (Units) Type
!Total No. LLD Mean Range IDistance
.Name Direction I Mean Range Mean Range Reported Measurements Food Gamma 3 Products (pCi!kg wet) K-40 3 9090 (3/3) Slade 3.2mi 17800 (1/1) N/A 0 (3830 - 17800) s (17800-17800) 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 K-40 12 88.5 (1/12) cs 0.3mi 88.5 (1/12) N/A 0 (88.5 - 88.5) E . (88.5 - 88.5)
Mn-54 12 15 <LLD N/A <LLD N/A 0 Co-58 12 15 <LLD N/A <LLD N/A 0 I
I Fe-59 12 30 <LLD N/A <LLD N/A ** 0 Co-60 12. 15 <LLD N/A <LLD N/A 0 Zn-65 12 30 <LLD N/A <LLD N/A 0 Nb-95 12 15 <LLD N/A <LLD N/A 0 Zr-95 12 30 <LLD N/A <LLD N/A 0 1-131 12 <LLD N/A <LLD N/A 0 Cs-134 12 15 <LLD N/A <LLD N/A 0 Cs-137 12 18 <LLD N/A <LLD N/A 0 22
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Surry Power Station, Surry County, Virginia - 2015 Docket No. 50"280-281 Page 3 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled (Units) Type
!Total No. LLD Mean Range IDistance Name Direction I Mean Range Mean Range Reported Measurements Well Ba-140 12 60 <LLD N/A <LLD N/A 0 Water (pCi/Liter)
La-140 12 15 <LLD N/A <LLD N/A 0
~--------------------------------------------------------------------
River H-3 8 2000 <LLD N/A <LLD <LLD 0 Water (pCi/uter)
Gamma 24 K-40 24 102 (8/12) SD 0.4 mi 102 (8/12) 103 (3/12) 0 I l (45.4 - 177) NW (45.4 - 177) (68.9 - 167)
I Th-228 24 <LLD SW 4.9 mi 9.95 (2/12) 9.95 (2/12) 0 WNW. (4.69 - 15.2) . (4.69 - 15.2)
Mn-54 24 15 <LLD N/A <LLD <LLD ' 0 i :
Co-58 24 15 <LLD N/A I
<LLD <LLD 0 Fe-59 24 30 <LLD N/A <LLD <LLD 0 Co-60 24 15 <LLD N/A <LLD <LLD 0 Zn-65 24 30 <LLD N/A <LLD <LLD 0 Nb-95 24 .15 <LLD N/A <LLD <LLD 0 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 N/A <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 N/A <LLD <LLD 0 23
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Surry Power Station, Surry County, Virginia - 2015 Docket No. 50-280-281 Page 4 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled (Units) Type
'Total No. LLD Mean Range IDistance Name Direction I Mean Range Mean Range Reported Measurements Silt Gamma 4 (pCilkg dry)
K-40 4 17000 (2/2) CHIC 11.2 mi 19050 (2/2) 19050 (2/2) 0 (12900-21100) WNW (16900-21200) (16900-21200)
Cs-134 4 150 <LLD N/A <LLD <LLD 0 Cs-137 4 180 <LLD CHIC 11.2 mi 205 (2/2) 205 (2/2) 0 WNW (196 - 214) (196 - 214)
Ra-226 4 3260 (1/2) SD 1.3 mi 3260 (1/2) 2260 (1/2) 0 (3260 - 3260) NNW (3260 - 3260) (2260 - 2260)
Th-228 4 1340 (2/2) CHIC 11.2 mi 1365 (2/2) 1365 (2/2) 0 (1110 - 1340) WNW (1270 - 1460) (1270 - 1460)
Th-232 4 1415 (2/2) CHIC 11.2 mi 1460 (2/2) 1460 (2/2) 0 (1320 - 1415) WNW (1130 -1790) (1130 - 1790)'
Shoreline Gamma 4 Sediment (pCilkg dry) K-40 4 6740 (2/2) HIR 0.6 mi 6740 (2/2) 2035 (2/2) 0 (5720 - 7760) N (5720 - 7760) (1640 - 2430)
Cs-134 4 150 <LLD N/A <LLD <LLD 0 Cs-137 4 180 <LLD N/A <LLD <LLD 0 Ra-226 4 1420 (1/2) CHIC 11.2 mi 1639 (2/2) 1639 (2/2) 0 (1420 - 1420) WNW. (927 - 2350) (927 - 2350)
Th-228 4 525 (2/2) CHIC 11.2 mi 850 (2/2) 850 (2/2) 0 (315 - 734) WNW (330 - 1370) (330 - 1370)
Th-232 4 591 (2/2) CHIC 11.2 mi 882 (2/2) 882 (2/2) 0 (444 - 737) WNW (413 - 1350) (413 - 1350)
Fish Gamma 4 ,
(pCilkg wet) ~
K-40 4 1898 (4/4) SD 1.3 mi 1898 (4/4) N/A 0 (1040 - 2910) NNW (1040 - 2910)
Mn-54 4 130 <LLD N/A <LLD N/A 0 Co-58 4 130 <LLD N/A <LLD N/A 0 Fe-59 4 260 <LLD N/A <LLD N/A 0 24
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Suny Power Station, Suny County, Virginia -2015 DocketNo.50-280-281 Page5of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled (Units) Type
!Total No. LLD Mean Range IDistance Name Direction I Mean Range Mean Range Reported Measurements Fish Gamma 4 (pCi/kg wet)
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 Oysters Gamma 6 (pCi/kg wet)
K-40 6 811 (3/6) MP 4.9 mi 955 (1/2) N/A 0 (611 - 955) ESE (955 - 955)
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 <LLD N/A <LLD N/A 0 Zn-65 6 260 <LLD N/A <LLD N/A 0 Cs-134 6 130 <LLD N/A <LLD N/A 0 Cs-137 6 150 <LLD N/A <LLD N/A 0 Clams Gamma 6 (pCilkg wet)
Mn-54 6 130 <LLD N/A <LLD <LLD 0 Co-58 6 130 <LLD N/A <LLD <LLD 0 Fe-59 6 260 <LLD N/A <LLD <LLD 0 25
TABLE 3-1: RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM
SUMMARY
Surry Power Station, Surry County, Vrrginia - 2015 Docket No. 50-280-281 Page 6 of6 Medium or Indicator Control Pathway Analysis Locations Location with Highest Mean Locations Non-Routine Sampled IT otal Mean I Distance I Mean Mean Reported (Units) Type No. LLD 1 Range Name Direction Range Range Measurements Clams Gamma 6 (pCi/kg v.et)
Co-60 6 130 <LLD NIA <LLD <LLD 0 Zn-65 6 260 <LLD NIA <LLD <LLD 0 Cs-134 6 130 <LLD N/A <LLD <LLD 0 Cs-137 6 150 <LLD NIA <LLD <LLD 0 Crabs Gamma (pCilkg v.et)
K-40 1140 (1/1) SD 1.3 mi 1140 (1/1) NIA 0 (1140 - 1140) NNW (1140 -1140)
Mn-54 ' 130 <LLD NIA <LLD N/A 0 Co-58 130 <LLD NIA <LLD N/A 0 Fe-59 260 <LLD NIA <LLD NIA 0 Co-60 130 <LLD N/A <LLD NIA 0 Zn-65 260 <LLD NIA <LLD NIA 0 Cs-134 130 <LLD NIA <LLD NIA 0 Cs-137 150 <LLD NIA <LLD N/A 0 26
3.2 Analytical Results of 2015 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.
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 1-131
- 4. Air Particulates, Quarterly Gamma Spectroscopy
- 5. Cow Milk
- 6. Food Products
- 7. Well Water
- 8. River Water
- 9. Silt
- 10. Shoreline Sediment
- 11. Fish
- 12. Oysters *
- 13. Clams
- 14. Crabs 27
TABLE 3-2: GAMMA EXPOSURE RATE Surry Power Station, Surry County, Vrrginia - 2015 mR/Std Month+/- 2 Sigma Page 1of1 STATION 'v FIRST SECOND THIRD' FOURTH AVERAGE NUMBER QUARTER QUARTER QUARTER QUARTER +/-2SIGMA 02 6.3 +/- 0.8 6.7 +/- 0.4 6.9 +/- 0.8 7.1 +/- 0.6 6.8 +/- 0.7 03 6.2 +/- 0.6 6.4 +/- 0.7 5.5 +/- 1.7 6.4 +/- 0.5 6.1 +/- 0.9 04 5.6 +/- 0.5 5.9 +/- 0.9 . 6.0 +/- 0.5 6.1 +/- 1.1 5.9 +/- 0.4 05 6.2 +/- 1.2 5.8 +/- 1.0 6.7 +/- 0.6 6.4 +/- 0.5 6.3 +/- 0.8 06 5.8 +/- 0.4 6.2 +/- 1.0* 6.5 +/- 0.3 6.2 +/- 0.2 6.2 +/- 0.6 07 6.1 +/- 0.8 5.8 +/- 0.6 6.2 +/- 0.4 6.3 +/- 0.5 6.1 +/- 0.4 08 5.5 +/- 0.8 5.7 +/- 1.2 5.7 +/- 0.3 5.8 +/- 0.4 5.7 +/- 0.3 09 7.5 +/- 0.7 7.3 +/- 1.1 7.8 +/- 0.7 7.8 +/- 0.5 7.6 +/- 0.5 10 5.7 +/- 0.6 5.8 +/- 1.2 6.4 +/- 0.. 8 6.1 +/- 0.4 6.0 +/- 0.6 11 5.2 +/- 0.5 5.4 +/- 0.9 5.2 +/- 0.1 5.6 +/- 0.3 5.4 +/- 0.4 12 5.2 +/- 0.6 5.4 +/- 0.5 5.8 +/- 0.4 5.6 +/- 0.3 5.5 +/- 0.5 13 5.9 +/- 0.5 6.3 +/- 0.8 6.5 +/- 0.6 6.4 +/- 0.4 6.3 +/- 0.5 14 5.7 +/- 0.5 5.9 +/- 0.7 5.9 +/- 0.2 6.0 +/- 0.6 5.9 +/- 0.3 15 5.6 +/- 0.7 5.9 +/- 1.0 6.2 +/- 0.6 6.5 +/- 0.5 6.1 +/- 0.8 16 5.0 +/- 1.0 5.8 +/- 0.3 3.4 +/- 1.0 5.7 +/- 0.8 5.0 +/- 2.2 18 4.5 +/- 0.3 4.6 +/- 0.6 4.9 +/- 0.4 4.9 +/- 0.5 4.7 +/- 0.4 19 4.8 +/- 0.6 5.3 +/- 0.6 5.2 +/- 0.6 5.3 +/- 0.4 5.2 +/- 0.5 20 4.2 +/- 0.5 4.9 +/- 0.4 4.8 +/- 0.3 5.0 +/- 0.6 4.7 +/- 0.7 21 4.5 +/- 0.2 4.9 +/- 0.7 5.4 +/- 0.3 5.1 +/- 0.4 5.0 +/- 0.8 22 3.9 +/- 0.4 4.4 +/- 0.4 4.4 +/- 0.3 4.7 +/- 0.9 4.4 +/- 0.7 23 5.6 +/- 0.3 6.2 +/- 0.9 6.2 +/- 0.4 6.1 +/- 0.7 6.0 +/- 0.6 24 4.6 +/- 0.7 5.0 +/- 0.5 5.1 +/- 0.5 5.0 +/- 0.3 4.9 +/- 0.4 25 6.0 +/- 1.0 5.5 +/- 0.1 6.2 +/- 0.4 6.3 +/- 0.5 6.0 +/- 0.7 26 5.2 +/- 0.3 5.4 +/- 0.7 5.1 +/- 0.5 5.0 +/- 0.2 5.2 +/- 0.3 27 4.7 +/- 0.4 5.0 +/- 0.4 5.1 +/- 0.3 4.7 +/- 0.4 4.9 +/- b.4 28 4.4 +/- 0.3 4.7 +/- 0.4 5.0 +/- 0.5 4.6 +/- 0.3 4.7 +/- 0.5 29 4.1 +/- 0.4 4.4 +/- 0.6 4.6 +/- 0.5 4.5 +/- 0.3 4.4 +/- 0.4 30 4.4 +/- 0.4 4.8 +/- 0.5 4.8 +/- 0.6 4.9 +/- 0.4 4.7 +/- 0.4 31 4.0 +/- 0.8 4.3 +/- 0.4 4.3 +/- 0.6 4.1+/-0.3 4.2 +/- 0.3 32 4.5 +/- 0.4 5.7 +/- 1.3 5.2 +/- 0.4 5.3 +/- 0.3 5.2 +/- 1.0 33 4.5 +/- 0.5 5.7 +/- 1.6 4.8 +/- 0.7 4.8*+/- 0.5 5.0 +/- 1.0 i : 34 4.9 +/- 0.5 5.4 +/- 0.5 5.5 +/- 0.6 5.5 +/- 0.5 5.3 +/- 0.6 35 6.0 +/- 0.5 5.8 +/- 1.4 6.4 +/- 0.3 6.5 +/- 0.5 6.2 +/- 0.7 36 5.6+/-0.1 5.9 +/- 1.4 6.3 +/- 0.6 6.6 +/- 0.5 6.1 +/- 0.9 37 4.9 +/- 0.5 5.3 +/- 0.3 5.3 +/- 0.5 5.2 +/- 0.4 5.2 +/- 0.4 38 6.5 +/- 0.8 6.7 +/- 0.6 6.6 +/- 0.4 6.7 +/- 0.7 6.6 +/- 0.2 39-C 4.7 +/- 0.7 5.0 +/- 0.5' 5.1 +/- 0.2 5.2 +/- 0.6 5.0 +/- 0.4 40-C 5.1 +/- 0,3 5.5 +/- 0.3 5.4 +/- 0.4 5.4 +/- 0.3 5.4 +/- 0.3 41-C 6.9 +/- 1.3 7.3 +/- 0.6 7.3 +/- 0.4 7.5 +/- 0.7 7.3 +/- 0.5 42 5.1 +/- 0.5 5.4 +/- 0.2 5.7 +/- 0.3 5.2 +/- 0.5 5.4 +/- 0.5 43 4.4 +/- 0.3 4.7 +/- 0.5 . 4.9 +/- 0.6 4.9 +/- 0.3 4.7 +/- 0.5 28
TABLE 3-3: GROSS BETA CONCENTRATION IN FILTERED AIR Sutry Nuclear Power Station, Surry County, Virginia - 2015 1.0E-3 pCi/m3 +/- 2 Sigma Page 1 of2 COLLECTION SAMPLING LOCATIONS DATE SS HIR BC ALL CP BASF FE NN-C January 06 17.5 +/- 3.16 14.6 +/- 3.03 25.5 +/- 3.63 17.3 +/- 3.16 15.1 +/- 3.04 17.7 +/- 3.15 22.2 +/- 3.38 19.8 +/- 3.22 January 13 14.3 +/- 2.99 12.2 +/- 2.92 18.7 +/- 3.26 14.0"+/- 2.98 14.0 +/- 2.99 15.4 +/- 8.76 16.2 +/- 3.09 18.0 +/- 3.13 January 20 16.4 +/- 2.81 13.1 +/- 2.63 20.4 +/- 3.07 19.5 +/- 2.97 15.0 +/- 2.75 A 14.9 +/- 2.71 18.5 +/- 2.92 January 26 8. 70 +/- 2.93 9.19 +/- 2.97 6.70 +/- 2.86 9.72 +/- 2.98 8.29 +/- 2.92 12.8 +/- 3.14 11.4 +/- 3.07 10.3 +/- 3.03 February 03 8.86 +/- 2.30 8.49 +/- 2.29 12.7 +/- 2.55 10.1 +/- 2.37 6.12+/-2.16 11.8 +/- 2.46 9.87 +/- 2.33 11.0 +/- 2.42 February 09 12.9 +/- 3.09 14.6 +/- 3.21 23.3 +/- 3.70 17.2 +/- 3.32 16.4 +/- 3.32 16.1 +/- 3.23 18.8 +/- 3.40 18.4 +/- 3:36 February 16 14.6 +/- 2.96 12.2 +/- 2.88 18.8 +/- 3.22 14.7 +/- 2.95 14.4 +/- 2.96 14.3 +/- 2.93 16.3 +/- 3.04 16.6 +/- 3.04 February 23 21.9 +/- 3.23 20.2 +/- 3.18 23.2 +/- 3.34 28.9 +/- 3.54 22.9 +/- 3.29 24.4 +/- 3.32 26.0 +/- 3.40 28.4 +/- 3.56 March 02 20.0 +/- 3.07 15.1 +/- 28.6 21.5 +/- 3.18 19.3 +/- 3.02 15.2 +/- 2.85. 20.6 +/- 3.09 19.3 +/- 3.03 25.1 +/- 3.29 March 09 15.1 +/- 2.83 13.0 +/- 2.75 20.0 +/- 3.15 14.3 +/- 2.78 14.4 +/-. 2.80 15.2 +/- 2.83 16.4 +/- 2.89 15.7 +/- 2.85 March 16 8.78 +/- 2.56 7.86 +/- 2.53 19.1+/-3.19 11.8 +/- 2.71 8.89 +/- 2.55 11.0 +/- 2.66 12,0 +/- 2.72 12.5 +/- 2.77 March 24 10.8 +/- 2.37 10.7 +/- 2.40 18.3 +/- 2.84 11.1 +/- 2.38 9.91 +/- 2.32 9.16+/-2.26 12.9 +/- 2.48 14.0 +/- 2.59 March 31 10.0 +/- 2.87 9.47 +/- 2.81 20.1 +/- 3.41 14.3 +/- 2.99 10.2 +/- 2.82 12.9 +/- 2.92 11.9 +/- 2.87 16.6 +/- 3.15 Qtr. Avg. +/- 2 s.d. 13.8 +/- 8.70 12.4 +/- 6.74 19.1 +/- 9.67 15.6 +/- 10.3 13.1 +/- 8.78 15.1 +/- 8.49 16.0 +/- 9.31 17.3 +/- 10.3 April 07 10.5 +/- 2.73 12.3 +/- 2.88 21.1 +/- 3.40 12.6 +/- 2.82 10.6 +/- 2.78 11.0 +/- 2.72 12.7 +/- 2.83 15.6 +/- 2.99 April 14 11.0 +/- 2.60 13.0 +/- 2.75 21.8 +/- 3.27 14.0 +/- 2.74 2.89 +/- 2.05 13.5 +/- 2.75 14.1 +/- 2.79 17.4 +/- 2.97 April 21 .8.86 +/- 2.56 8.46 +/- 2.58 13.0 +/- 2.89 9.57 +/- 2.57 *10.3 +/- 2.65 8.20 +/- 2.51 9.33 +/- 2.59 10.4 +/- 2.65 April 28 8.25 +/- 2.39 7.46 +/- 2.38 *17.3 +/- 2.98 9.81 +/- 2.47 10.7 +/- 2.56 10.6 +/- 2.53 10.5 +/- 2.54 10.3 +/- 2.51 May 05 6.37 +/- 2.46 4.03 +/- 2.34 12.1 +/- 2.87 7.21 +/- 2.48 8.63 +/- 2.63 6.38 +/- 2.44 7.25 +/- 2.52 7.19 +/- 2.50 May 12 8.66 +/- 2.53 9.29 +/- 2.61 15.1 +/- 2.95 9.49 +/- 2.55 10.1 +/- 2.64 8.83 +/- 2.53 8.95 +/- 2.55 11.5 +/- 2.68 May 19 17A +/- 3.10 14.7 +/- 3.00 24.4 +/- 3.53 15.8 '+/- 3.00 17.9 +/- 3.13 15.9 +/- 3.05 17.7 +/- 3.11 19.0 +/- 3.16 May 26 18,7 +/- 2.94 10.7 +/- 2.76. 15 ..1 +/- 3.00 11:6 +/-* 2.77 16.0 +/- 3.01 14.1 +/- 2.89 14.2 +/- 2.89 18.9 +/- 3.13 June .02 13.0 +/- 2.79 11.2 +/- 2.72 12.5 +/- 2.80 16.0 +/- :2.95 12.4 +/- 2.75 12.7 +/- 2.75 10.8 +/- 2.62. 15.3 +/- 2.89 June 09 8.55 +/- 2.32 7.04 +/- 2.25 7.60 +/- 2.27 5.76 +/- 2.07 6.84 +/- 2.18 8.50 +/- 2.30 6.50+/-2.15 8.20 +/- 2.27 June 16 14.9 +/- 2.77 10.1 +/- 2.51 13.1 +/-2.69 12.4 +/- 2.60 12.4 +/- 2.60 13.{) +/- 2.67 14.7 +/- 2.73 14.9 +/- 2.14 June 23 12.3 +/- 2.52 8.92 +/- 2.32 14.5 +/- 2.68 16.3 +/- 2.75 12.7 +/- 2.54 12.3 +/- 2.52 14.5 +/- 2.66 15.2 +/- 2.70 June 30 5.46 +/- 2.43 3.51 +/- 2.34 9.29 +/- 2.72 7.15 +/- 2.54 9.06 +/- 2.67 9.32 +/- 2.66 5.63 +/- 2.43 7.85 +/- 2.54 Qtr. Avg. +/- 2 s.d. 11.1 +/- 8.11 9.29 +/- 6.55 15.1 +/- 9.78 11.4 +/- 7.09 11.5 +/- 7.59 11.1 .+/- 5.60 11.3 +/- 7.37 13.2 +/- 8.36 A: No power at sampling station April 14: OP <Minim um Detectable Activity 29
-- __ ,,. ~
TABLE 3-3: GROSS BETA CONCENTRATION IN FILTERED AIR Surry Nuclear Power Station, Surry County, Virginia - 2015 1.0E-3 pCi/ni3 +/- 2 Sigma Page 2 of2 COLLECTION SAMPLING LOCATIONS DATE SS HIR BC ALL CP BASF FE NN July 07 13.0+/-2.70 9.28 +/- 2.49 13.3 +/- 2.74 12.6 +/- 2.69 12.8 +/- 2.67 11.8+/-2.61 11.9+/-2.66 A July 14 12.7 +/- 2.57 9.59 +/- 2.41 15.9 +/- 2.79 14.5 +/- 2.68 13.4 +/- 2.62 14.4 +/- 2.69 11.0 +/- 2.48 16.2 +/- 2.82 July 21 12.5 .+/- 2.48 9 ..32 +/- 2.30 11.4 +/- 2.43 10.3 +/- 2.31 11.0 +/- 2.36 10.3 +/- 2.33 12.4 +/- 2.45 13.1 +/- 2.50 July 28 13.1+/-2.90 10.0 +/- 2.75 13.9 +/- 2.96 11.0+/-2.74 9.56 +/- 2.67 9.88 +/- 2. 71 12.2 +/- 2.83 13.2 +/- 2.86 August 04 17.7 +/- 3.06 15.0 +/- 2.96 20.3 +/- 3.22 20.9 +/- 3.21 23.4 +/- 3.36 20.8 +/- 3.23 19.9 +/- 3.16 22.2 +/- 3.28 August 11 9.03 +/- 2.54 8.93 +/- 2.57 11.1 +/- 2.69 9.69 +/- 2.56 13.4 +/- 2.79 11.5+/-2.65 10.4 +/- 2.61 10.3 +/- 2.59 August 18 14.4 +/- 2.84 10.8 +/- 2.67 15.2 +/- 2.93 12:5 +/- 2.14 14.5 +/- 2.88 .15.5 +/- 2.91 15.5 +/- 2.91 16.3 +/- 2.94 August 25 18.7 +/- 3.24 7.64 +/- 2.67 20.4 +/- 3.38 17.0 +/- 3.16 19.6 +/- 3.31 18.8 +/- 3.25 16.5 +/- 3.12 19.8 +/- 3.29 September01 16.0 +/- 2.93 17.9 +/- 3.04 18. 1 +/- 3.11 20.4 +/- 3.20 21.3 +/- 3.23 19.0 +/- 3.10 1.9.2 +/- 3.12 14.9 +/- 2.89 September 07 27.6 +/- 3.93 28.1 +/- 3.98 3~.5 +/- 4.23 32.2 +/- 4.15 30.8+/-4.10 27.4 +/- 3.91 30.6 +/- 4.06 25.5 +/- 3.83 September 15 16.3 +/- 2.71 15.2 +/- 2.65 15.8 +/- 2.74 15.9 +/- 2.68 16.7 +/- 2.75 14.4 +/- 2.61 16.1 +/- 2.70 16.5 +/- 2. 71 September 22 26.8 +/- 3.41 24.0 +/- 3.32 24.4 +/- 3.36 29.1 +/- 3.56 23.4 +/- 3.30 24.4 +/- 3.34 25.8 +/- 3.39 26.0 +/- 3.39 September 29 11.9+/-2.54 9.29 +/- 2.40 9.91 +/- 2.47 8.45 +/- 2.32 8.70 +/- 2.35 9.56 +/- 2.39 10.5 +/- 2.45 14.0 +/- 2.64 Qtr. Avg. +/- 2 s.d. 16.1 +/- 11.1 13.5 +/- 12.8 17.1 +/- 12.4 16.5 +/- 14.8 16.8 +/- 13.0 16.0 +/- 11.5 16.3 +/- 12.4 17.3 +/- 10.0 October 06 3.30 +/- 1.99 2.45 +/- 1.93 2.94 +/- 1.98 2.91 +/- 1.91 2.45 +/- 1.93 2.59 +/- 1.88 3.63 +/- 2.02 3.12+/-1.92 October 13 14,.8 +/- 2.86 14.1 +/- 2.86 15.7 +/- 2.98 15~8 +/- 2.93 16.5 +/- 2.99 14.1 +/- 2.85 14.7 +/- 2.88 14.8 +/- 2.88 October 20 16.5+/-3.18 15.7. +/- 3.16 21.7 +/- 3.49 18.9 +/- 3.29 17.4 +/- 3.26 18.4 +/- 3.27 16.2 +/- 3.15 17.6 +/- 3.24 October 27 19.3 +/- 3.42 20.0 +/- 3.45 21.4 +/- 3.56 21.1+/-3.47 21.4 +/- 3.52 16.7 +/- 3.25 17.8 +/- 3.31 15.9 +/- 3.22 November 03 15.3 +/- 2.87 16.7 +/- 2.94 16.1+/-2.94 16.9 +/- 2.93 15.9 +/- 2.90 16.1 +/- 2.88 15.5 +/- 2.85 17.1 +/- 2.93 November 10 15.6 +/- 2.98 15.7 +/- 2.98 17.5. +/- 3.10 18.4 +/- 3.09 17.4 +/- 3.10 13.4 +/- 2.84 15.5 +/- 2.96 16.4 +/- 2.99 November 17 18.2 +/- 3.19 13.0 +/- 2.94 16.7 +/- 3.17 20.5 +/- 3.30 15.6+/-3.11 17.4 +/- 3.14 18.8 +/- 3.21 17.3 +/- 3.13 November 24 14.1 +/-2.70 12.0 +/- 2.56 14.3 +/- 2.73 14.3 +/- 2.69 11.3 +/- 2.53 11.0 +/- 2.49 11.0 +/- 2.48 13.7 +/- 2.64 December 01 14.0 +/- 2.95 11.9+/-2.85 13.9 +/- 2.98 1.3.2 +/- 2.89 11.4 +/- 2.85 13.7 +/- 2.93 13.0 +/- 2.88 14.0 +/- 2.92 December 08 24.3 +/- 3.18 21.8 +/-3.07 21.9+/-3.11 25.9 +/- 3.28 25.2 +/- 3.27 22.6 +/- 3.12 25.5 +/- 3.25 23.9 +/- 3.17 December 15 29.6. +/- 3.50 29.9 +/- 3.54 36.3 +/- 3.84 30.6 +/- 3.57 30.3 +/- 3.57 29.7 +/- 3.53 30.1 +/- 3.54 32.8 +/- 3.62 December 22 11.8 +/- 2.54 12.6 +/- 2.59 . 13.7 +/- 2.67 13.0 +/- 2.61 11.7 +/- 2.57 11.5 +/- 2.52 12.8 +/- 2.59 13.0 +/- 2.60 December 29 5.38 +/- 2.09 7.62 +/- 2.26 7.19+/-2.24 6.32+/-2.16 7.69 +/- 2.28 5.89+/-2.12 7.17+/-2.20 7.69 +/- 2.23 Qtr. Avg. +/- 2 s.d. 15.6 +/- 13.8 15.9 +/- 11.6 16.9 +/- 15.9 16.8 +/- 14.7 16.8 +/- 12.7 15.9 +/- 12.1 15.5 +/- 13.8 15.9 +/- 14.2 Ann. Avg. +/- 2 s.d. 14.1 +/- 1.1.1 12.7 +/- 10.6 17.1 +/- 12.2 15.0 +/- 12.6 14.6 +/- 11.3 14.5 +/- 10.. 3 14.8 +/- 11.5 15.9 +/- 11.2 A: No power at sam piing station October.06: HIR, CP and BASF <Minimum Detectable Activity 30
1'.ABLE 3-4: IODINE-131 CONCENTRATION IN FILTERED AIR Suny Power Station, Suny County, Vrrginia- 2015 1.0E-3 pCi/m3 +/- 2 Sigma Page 1 of2 COLLECTION SAMPLING LOCATIONS DATE SS HIR .BC ALL CP BASF FE NN*C January 06 9.54 +/- 20.8 9.62 +/- 21.0 9.87 +/- 21.5 9.57 +/- 20.9 -16.6 +/- 17.2 -16.3 +/- 16.9 -16.3 +/- 16.9 -16.0 +/- 16.6 January 13 -2.0.0 +/- 41.6 -2.03 +/- 42.3 -2.05 +/- 42.6 -2.00 +/- 41.6 18.7 +/- 22.9 29'2 +/- 35.7 18.5 +/- 22.6 18.0 +/- 22.0 January 20 -1.33 +/- 20.3 -1.34 +/- 20.4 -1.35 +/- 20.7 -1.32 +/- 20.1 -4.63 +/- 19.6 A -4.54 +/- 19.1 -4.54 +/- 19.1 January 26 9~39 +/- 36.5 9.42 +/- 36.6" 9.59 +/- 37.3 9.31 +/- 36.1 -7.08 +/- 32,3 -6.95 +/- 31.7 -6.95 +/- 31.7 -7.00 +/- 31.9 February 03 40.8 +/- 33.6 41.0 +/- 33.!3 41,5 +/- 34.2 40.6 +/- 33.4 9.55 +/- 38.6 9.39 +/- 37.9 9.26 +/- 37.4 9.35 +/- 37.8 February 09 20.3 +/- 15.5 20.5+/-15.6 20.6 +/- 15.7 20.1 +/- 15.3 -1.28 +/- 16.0 -1.24 +/- 15.5 -1.25 +/- 15.6 -1.24 +/- 15.4 February 16 4.58 +/- 22.3 4.69 +/- 22.8. 4.66 +/- 22.6 4.55 +/- 22.1 -7.10 +/- 16.8 -7.03 +/- 16.6 -7.02 +/- 16.6 -6.92 +/- 16.4 February 23 9.26 +/- 18.2 9.47 +/- 18.6 9.45 +/- 18.6 9.18 +/- 18.1 -0.84 +/- 18.4 -0.82 +/- 18.1 -0.82 +/- 18.1 -0.84 +/- 18.3 March 02 4.04 +/- 21.1 4.13+/-21.6 4.10+/-21.4 4.00 +/- 20.9 2.68 +/- 18.5 2.62 +/- 18.1 2.62 +/- 18.1 2.59 +/- 17.9 March 09 * -12.7 +/- 20.6 -13.0 +/- 21.0 -13.1 +/- 21.1 -12.6 +/- 20.4 7.52 +/- 17.7 7.46 +/- 17.6 7.45 +/- 17.5 7.36 +/- 17.3 March 16 -17.4 +/- 31.t -17.7 +/- 31.5 -17.9 +/- 32.0 -17.2 +/- 30.6 8.69 +/- 25.2 8.60 +/- 24.9 8.58 +/- 24.9 8.61 +/- 25.0 March 24 -4:01 +/- 23.6 -4.09 +/- 24.0 -4.15 +/- 24.4 -3.98 +/- 23.4 -14.0 +/- 16.4 -13.9 +/- 16.2 -13.9 +/- 16.2 -14.1 +/- 16.5 March 31 5.12 +/- 12.6 5.17+/-12.8 5.24 +/- 12.9 4.97 +/- 12.3 6.91 +/- 16.5 6.76 +/- 16.1 6.75 +/- 16.1 6.78 +/- 16.2 April 07 8.85 +/- 33.8 9.05 +/- 34.6 9.19 +/- 35.1 8.68 +/- 33.2 -20.3 +/- 45.8 -23.3 +/- 44.5 -23.3 +/- 44.5 -23.1 +/- 44.2 April 14 -19.8 +/- 40.8 -20.1 +/- 41.5 . -20.4 +/- 42.1 -19.3 +/- 39.9 42.2 +/- 35.7 41.7 +/- 35.4 41.7 +/- 35.3 41.7 +/- 35.3 .
April 21 6.96 +/- 31.0 7.08 +/- 31.5 7.21 +/- 32.1 6.82 +/- 30.4 0.10 +/- 24.8 -38.4 +/- 46.6 -38.5 +/- 46.7 -38.3 +/- 46.4 April 28 -5.57 +/- 9.88 8.01 +/- 14.9 8.09 +/- 15.0 7.73 +/- 14.3 -10.8 +/- 19.1 -10.6 +/- 18.9 -10.7 +/- 19.0 -10.6 +/- 18.8 May 05 2.50 +/- 33.7 2.55 +/- 34.3 2.57 +/- 34.6 2.45 +/- 33.1 -8.84 +/- 31.4 -8.65 +/- 30.7 -8.72 +/- 30.9 -8.64 +/- 30.7 May 12 -15.6 +/- 17.2 -15.9 +/- 17.5 -16.0 +/- 17.6 -15.3 +/- 16.9 2.58 +/- 13.0 2.53 +/- 12.8 2.54 +/- 12.8 2.52 +/- 12.7 May 19 4.83 +/- 30.9 4.92 +/- 31.4 5.03 +/- 32.2 4.78 +/- 30.5 6.07 +/- 20.2 6.13 +/- 20.4 6.02 +/- 20.0 5.98 +/- 19.9 May 26 -6.20 +/- 14.6 -6.31 +/- 14.9 -2:45 +/- 5.77 -6.18 +/- 14.6 -4.99 +/- 14.8 -4.94 +/- 14.7 -4.93 +/- 14.7 -4.90 +/- 14.6 June 02 2.93 +/- 11.9 2.97 +/- 12.1 2:99 +/- 12.1 2.91 +/- 11.8 -9.64 +/- 17.1 -9.55 +/- 17.0 -9.45 +/- 16.8 -9.48 +/- 16.9 June 09 20.2 +/- 38.4 20.7 +/- 39.3 20.4 +/- 38.8 8.69 +/- 16.5 -2.85 +/- 36.1 -2.85 +/- 36.1 -2.83 +/- 35.8 -2.82 +/- 35.7 June 16 -15.9 +/- 24.3 -16.0 +/- 24.5 ~16.0 +/- 24.5. -15.6 +/- 23.9 18.6 +/- 26.4 18.6 +/- 26.3 18.5 +/- 26.2 18.4 +/- 26.1 June 23 3.87 +/- 11.5 3.91 +/- 11.6 3.91 +/- 11.6 1.49 +/- 4.41 0.71 +/- 14,7 0.71 +/- 14.7 0.71 +/- 14.7 0.71 +/- 14.7 June 30 -7.61 +/- 23.2 -7.72 +/- 23.5 -7.78 +/- 23.7 3.77 +/- 25.4 3.78 +/- 25.5 3.73 +/- 25.1 3.71 +/- 25.0 1.29 +/- 8.73 A: No power at sampling station
'31
TABLE 3-4: IODINE-131 CONCENTRATION IN FILTERED AIR Surry Power Station, Surry County, Virginia - 2015 1.0E-3 pCi/m3 +/- 2 Sigma Page2 of2 COLLECTION SAMPLING LOCATIONS DATE SS HIR BC ALL CP - BASF FE NN-C July 07 15.2 +/- 37.8 15.4 +/- 38.2 15.4 +/- 38.3 15.4 +/- 38.2 -22.7 +/- 38.5 -22.7 +/- 38.5 -23.3 +/- 39.2 A July 14 -3.97 +/- 14.6 -4.04 +/- 14.9 -4.03 +/- 14.9 -3.96 +/- 14..6 14.8 +/- 24.4 14.8 +/- 24.5 6.22 +/- 10.3 15.0 +/- 24.8 1
July 21 10.4 +/- 22.0 4.13 +/- 8.69. . 10.6 +/- 22.3 10.3 +/- 21.6 -14.9 +/- 21.2 -15.0 +/- 21.3 -14.9 +/- 21.2 -14.8 +/- 21.1 July 28 -4.38 +/- 10.8 -4.43 +/- 10.9 -4.42 +/- 10.9 -4.30 +/- 10.6 13.5 +/- 17.7 13.6 +/- 17.8 . 13.5 +/- 17.7 13.3 +/- 17.5 August 04 -8.62 +/- 23.8 -8.76 +/- 24.2 -8.71 +/- 24.0 -8.54 +/- 23.6 10.1 +/- 18.6 10.1 +/- 18.6 9.93 +/- 18.3 9.89 +/- 18.3 August 11 -2.94 +/- 23.1 -2.99 +/- 23.5 -2.96 +/- 23.3 -2.18 +/- 30.0 -2.19 +/- 30.1 .-0.90 +/- 12.4 -2.17 +/- 29.8 -2.14 +/- 29.5 August 18 -0.72 +/- 24.3 -0.73 +/- 24.7 -0.73 +/- 24.8 -0.72 +/- 24.3 5.57 +/- 25.2 5.49 +/- 24.9 5.47 +/- 24.8 5.42 +/- 24.6 August 25 -27.8 +/- 20.9 -28.3 +/- 21.3 -28.5 +/- 21.4 -27.8 +/- 20.9 5.93 +/- 12.4 5.89 +/- 12.3 5.83 +/- 12.2 5.81 +/- 12.2 September 01 -3.91 +/- 17.1 -3.92 +/- 17.2 -4.03 +/- 17.7 -3.97 +/- 17.4 -19.1 +/-25.8 -18.9 +/- 25.6 -19.0 +/- 25.6 -18.9 +/- 25.5 September 07 11.8+/-28.0 11.9 +/- 28.2 12.1 +/- 28.8 11.8+/-28.0 -1.21 +/- 25.8 -1.19 +/- 25.4 -1.19 +/- 25.4 -1.19 +/- 25.4 September 15 14.5 +/- 18.7 . 14.4 +/- 18.7 14.8 +/- 19.2 14.4 +/- 18.6 -7.50 +/- 15.3 -7.42 +/- 15.1 -7.41 +/- 15.1 -7.36 +/- 15.0 September 22 6.24 +/- 15.8 6.35 +/- 16.1 6.41 +/- 16.2 6.33 +/- 16.0 7.77 +/- 17.6 7.72 +/- 17.5 7.68 +/- 17.4 7.59 +/- 17.2 September 29 -1.05 +/- 14.7 -1.06 +/- 14.8 -1.07 +/- 15.0 -1.04 +/- 14.6 -3.89 +/- 14.8 -3.85 +/- 14.6 . -3.83 +/- 14.6 -3.77 +/- 14.3 October 06 3.94 +/- 19.5 3.96 +/- 19.6 3.97 +/- 19.6 3.82 +/- 18.8 33.1 +/- 29.6 31.8 +/- 28.4 32.9 +/- 29.4 31.6 +/-'28.3 October 13 -24.2 +/- 22.7 -24.5 +/- 23.0 -24.8 +/- 23.3 -24.2 +/- 22.7 8.17 +/- 17.2 8.10 +/- .17.0 8.09 +/- 29.7 8.01 +/- 16.8 October 20 5.32 +/- 30.1 5.34 +/- 30.2 5.43 +/- 30.7 5.28 +/- 2.98 5.43 +/- 20.2 5.35 +/- 19.9 5.32 +/- 19.8 5.33 +/- 19.8 October 27 6.16 +/- 24.4 6.15 +/- 24.3 6.24 +/- 24.7 3.16+/-19.2 3.19 +/- 19.4 1.22 +/- 7.37 3.13 +/- 19.0 3.11 +/- 18.9 November 03 10.0 +/- 36.3 9.96 +/- 36.0 10.1 +/- 36.5 9.83 +/- 35.6 2.85 +/- 34.1 2.80 +/- 33.5 2.80 +/- 33.5 2.79 +/- 33.3 November 10 0.01 +/- 26.9 0.01 +/- 26.9 0.01 +/- 27.2 5.85 +/- 16.2 14.3 +/- 39.5 14.0 +/- 38.6 13.9 +/- 38.5 13.8 +/- 38.1 November 17 -4.95 +/- 16.4 -4.99 +/- 16.5 -5.06 +/- 16.7 -4.96 +/- 16.4 -20.5 +/- 32.2 -19.8 +/- 31.2 -19.9 +/- 31.3 -19.7+/-31.1 November24 -29.4 +/- 29.5 -29.1 +/- 29.2 -29. 7 +/-' 29.8 5.40 +/- 18.9 5.45 +/- 19.0 5.36 +/- 18.7 2.07 +/- 7.22 5.32 +/- 18.6 December01 -5.24 +/- 33~7 -5.26 +/- 33.9 -5.29 +/- 34.1 -1.09 +/- 31.6 -1.12 +/- 32.4 -1.09 +/- 31.5 -1.08 +/- 31.4 -0.45 +/- 13.0 .
December 08 -7.71 +/- 24.8 -7.78 +/- 25.0 -7.89 +/- 25.3 -7.81 +/- 25.1 -7.14 +/- 38.9 -7.07 +/- 38.6 -6.99 +/- 38.1 _-6.96 +/- 38.0 December 15 12.3 +/- 39.4 12.4 +/- 39.8 12.5 +/- 40:1 12.4 +/- 39.7 -16.9 +/- 30.0 ~16.7 +/- 29.7 -16.7 +/- 29.6 -16.3 +/- 28.9 December22 -8.14 +/- 27.1 -8.14 +/-' 27.1 -8.19 +/- 27.3 27.4 +/- 25.1 27.9 +/- 25.6 27.2 +/- 25.0 14.9 +/- 13.7 26.9 +/- 24.7 December29 9.17 +/- 33.7 9.24 +/- 33.9 9.28 +/- 34.1 14.2 +/- 23.0 14.4 +/- 23.2 14.1 +/- 22.7 5.42 +/- 8.75 13.8 +/- 22.3 A: No power at sampling station -
32
TABLE 3-5: GAMMA EMITTER CONCENTRATION IN FILTERED AIR Surry Power Station, Surry County, Virginia - 2015 1.0E-3 pCi/m3 +/- 2 Sigma Page 1 ofl SAMPLING FIRST SECOND THIRD FOURTH AVERAGE LOCATIONS NUCLIDE QUARTER QUARTER QUARTER QUARTER +/- 2 SIGMA SS Cs-134 0.19 +/- 0.87 0.27 +/- 0.81 -0.23 +/- 0.84 0.53 +/- 0. 74 Cs-137 -1.20 +/- 0.73 0.65 +/- 0.86 -0.73 +/- 0.89 0.17 +/- 0.81 Be-7 115 +/- 32.8 126 +/- 30.2 141 +/- 46.2 104 +/- 24.2 122 +/- 31.6 HIR Cs-134 0.22 +/- 0.98 0.54 +/- 0. 77 0.49 +/- 0.68 1.62 +/- 0.94 Cs-137 0.39 +/- 0.90 -0.41 +/- 0.67 0.26 +/- 0.68 -0.23 +/- 0.90 Be-7 94.1 +/- 38.9 111 +/- 27.8 143 +/- 33.6 118 +/- 22.7 117+/-40.6 K-40 22.8 +/- 13.3 22.8 +/- 13.3 BC Cs-134 0.83 +/- 0.97 0.63 +/- 1.26 0.08 +/- 0.85 1.25 +/- 1.35 Cs-137 0.74 +/- 0.83 0.00 +/- 1.39 0.72 +/- 0.83 0.04 +/- 1.16 Be-7 124 +/- 33.7 153 +/- 44.1 108 +/- 35.8 120 +/- 42.1 126 +/- 38.2 ALL Cs-134 0.05 +/- 0.92 -0.91 +/- 0.75 0.27 +/- 0.92 -0.94 +/- 0.91 Cs-137 0.13 +/- 0.71 -0.01 +/- 0.51 -0.36 +/- 0.64 -0.35 +/- 0.71 Be-7
- 128 +/- 48.8 186 +/- 36.6 187 +/- 40.5 159 +/- 28.6 165 +/- 55.7 K-40 14.3 +/- 11.9 14.3 +/- 11.9 CP Cs-134 0.25 +/- 0~95 0.90 +/- '1.08 0.75 +/- 0.81 -0.26 +/- 0.85 Cs-137 0.20 +/- 0.77 -0.05 +/- 1.10 -0.18 +/- 0.78 0.29 +/- 0.77 Be-7 108 +/- 30.1 115 +/- 39.4 122 +/- 30.3 103 +/- 25.0 112 +/- 16.6
! I K-40 14.3 +/- 14.0 24.6 +/- 12.2 19.5 +/- 14.6 BASF Cs-134 0.10 +/- 0.78 0.36 +/- 0.69 -0.63 +/- 1.24 0.27 +/- 1.31 Cs-137 -0.10 +/- 0.71 -0.33 +/- 0.56 1.32 +/- 1.32 -0.11 +/- 0.98 Be-7 133 +/- 33:5 98.0 +/- 25.6 128 +/- 54.7 105 +/- 33.0 116 +/- 34.2 K-40 9.99 +/- 7.37 9.99 +/- 7.37 FE Cs-134 -0.17 +/- 0.90 0.99 +/- 0.81 0.49 +/- 0.85 0.60 +/- 0. 76 Cs-137 -0.67 +/- 0.80 '0.10 +/- 0.75 0.70 +/- 0.72 0.43 +/- 0.69 Be-7 155 +/- 33.3 168 +/- 32.1 132 +/- 29.6 141 +/- 24.2 149 +/- 31.6 NN-C Cs-134 1.31 +/- 1.10 0.66 +/- 0.84 0.42 +/- 0.80 -0.13 +/- 0.72 Cs-137 -0.29 +/- 0.86 -0.13 +/- 0.77 -0.43 +/- 0.73 0.39 +/- 0.57 Be-7 136 +/- 46.9 136 +/- 38.5 151 +/- 34.1 140 +/- 26.9 141 +/- 14.2 33
TABLE 3-6: GAMMA EMITTER AND STRONTIUM CONCENTRATIONS IN MILK*
Suny Po,wer Station, Suny County, Vrrginia - 2015 pCi/Liter +/- 2 Sigma Page I of3 COLONIAL NUCLIDE EPPS PARKWAY WILLIAMS-C JANUARY Cs-134 -8.07 +/- 4.24 4.10 +/- 5.27 -1.57 +/- 6.15 Cs-137 -0.57 +/- 3.46 4.08 +/- 5.41 1.98 +/- 5.80 Ba-140 -3.80 +/- 17.4 -20.2 +/- 28.8 10.2 +/- 23.9 La-140 -0.27 +/- 3.94 7.35 +/- 6.24 -5.86 +/- 9.20 1-131 -0.47 +/- 0.43 -0.24 +/-' 0.24 0.22 +/- 0.35 K-40 1330 +/- 140 1100 +/- 195 1200 +/- 184 FEBRUARY Cs-134 -2.82 +/- 2.68 0.09 +/- 4.03 0.44 +/- 4.65 Cs-137 -0.48 +/- 2.50 0.13 +/- 3.85 1.29 +/- 4.28 Ba-140 -6.70 +/- 15.0 -9.14 +/- 21:1 1.90 +/- 24.0 La-140 0.77 +/- 3.99 -1.23 +/- 6.89 -2.29 +/- 6.16 1-131 -0.74 +/- 0.33 -0.32 +/- 0.31 -0.16 +/- 0.31 K-40 1330 +/- 117 1330 +/- 170 1200 +/- 152 MARCH Cs-134 -1.16 +/- 3.66 2.02 +/- 3.05 -1.78 +/- 4.93 Cs-137 -1.04 +/- 3.68 -2.07 +/- 3.42 0.08 +/- 5.18 Ba-140 1.25 +/- 18.1 16.7 +/- 16.6 -30.3 +/- 25.9 La-140 1.24 +/- 3.93 -3.81 +/- 4.73 -2.60 +/- 6.57 1-131 -0.05 +/- 0.31 -0.18 +/- 0.31 '-0.03 +/- 0.23 K-40 1240 +/- 114 1370 +/- 136 . 1410 +/- 186 Sr-89 0.11 +/- 2.84 Sr-90 -0.31 +/- 0.31 APRIL Cs-134 -5.45 +/- 3.83 0.34 +/- 4.01 -0.29 +/- 5.09 Cs'-137 1.17. +/- 3.86 2.67 +/- 4.92 . 2.52 +/- 5.20 Ba-140 -2.34. +/- 23.6 -24.6 +/- 24.4 11.1 +/- 25.8 La-140 -0.15 +/- 7.74 -8.58 +/-. 6.96 0.91 +/- 7.11 1-131 0.10 +/- 0.38 -0.18 +/- 0.34 -0.16 +/- 0.25 K-40 1390 +/- 167 1250 +/- 179 1160 +/- 179 34
TABLE 3:..6: GAMMA EMITTER AND STRONTIUM CONCENTRATIONS IN MILK Surry Power Station, Surry County, Vrrginia - 2015 pCi/Llter +/- 2 Sigma Page2 of3 COLONIAL NUCLIDE EPPS PARKWAY WILLIAMS*C MAY Cs-134 -7.61 +/- 4.78 -4.93 +/- 3.93 -3.38 +/- 4.75 Cs-137 -3.62 +/- 6.22* 2.06 +/- 3.72 0.90 +/- 4.75 Ba-140 -9.91 +/- 30.4 -19.5 +/- 22.4 -1.92 +/- 22.4 La-140 -3.66 +/- 8.61 0.41 +/- 5.61 -3.26 +/- 7.73 1-131 -0.32 +/- 0.41 -0.25 +/- 0.44 -0.19 +/- 0.51 K-40 1280 +/- 188 1340 +/- 140 1320 +/- 171 JUNE Cs-134 -4.33 +/- 3.34 -2.75 +/- 3.21 -7.88 +/- 4.65 Cs-137 -1.21 +/- 3.51 0.80 +/- 2.64 1.12 +/- 4.46 Ba-140 15.4 +/- 18.6 6.36 +/- 12.3 -2.25 +/- 21.0 La-140 0.23. +/- 4.69 0.69 +/- 3.85 -0.70 +/- 6.35 1-131 -0.38 +/- 0.34 -0.06 +/- 0.41 -0.02 +/- 0.25 K-40 1360 +/- 121 1130 +/- 96.7 1430 +/- 151 Sr-89 3.67 +/- 3.08 Sr-90 1.76 +/- 0.46 JULY Cs-134 -2.73 +/- 2.67 0.28 +/- 3.91 1.13 +/- 4.37 Cs-137 2.50 +/- 3.20 -1.29 +/- 4.70 2.09 +/- 4.09 Ba-140 2.81 +/- 17.1 18.6 +/- 22.1 -0.56 +/- 20.0 La-140 0.87 +/- 4.30 4.49 +/- 5.23 -3.31 +/- 5.58 1-131 -0.32 +/- 0.40 -0.44 +/- 0.48 -0.09 +/- 0.28 K-40 1460 +/- 151 1300 +/- 179 1300 +/- 140 AUGUST Cs-134 -5.02 +/- 4.84 -1.14 +/- 5.91 -2.53 +/- 4.18 Cs-137 -2.99 +/- 5.19 -1.62 +/- 6.26 3.34 +/- 4.84 Ba-140 16.7 +/- 20.7 -7.70 +/- 28.8 9.12 +/- 18.8 La-140 0.53 +/- 6.59 4.77 +/- 7.28 -0.24 +/- 4.55 1-131 -0.07 +/- 0.43 -0.42 +/- 0.45 -0.30 +/- 0.50 K-40 1300 +/- 185 1430 +/- 209 1420 +/- 181 35
TABLE 3-6: GAMMA EMITTER AND STRONTIUM CONCENTRATIONS IN MILK Suny Power Station, Suny County, Vrrginia - 2015 pCi/Liter +/- 2 Sigma Page3 of3 COLONIAL NUCLIDE EPPS PARKWAY WILLIAMS-C SEPTEMBER Cs-134 -3.46 +/- 6.13 -2.98 +/- 5.71 -1.00 +/- 5.67
, Cs-137 -4.92 +/- 5.91 -2.29 +/- 6.02 4.22 +/- 6.73
, Ba-140 5.71 +/- 24.0 -15.0 +/- 19.9 -1.70 +/- 19.2 La-140 3.37 +/- 6.79 4.22 +/- 5.86 -2.12 +/- 9.22 1-131 -0.13 +/- 0.26 -0.54 +/- 0.26 -0.10 +/- 0.16 K-40 1570 +/- 233 1340 +/- 211 1130 +/- 227 Sr-89 4.17 +/- 2.89 Sr-90 1.80 +/- 0.49 OCTOBER Cs-134 4.04 +/- 4.03 -2.06 +/- 3.13 -5.90 +/- 3.58 Cs-137 2.67 +/- 3.69 1.08 +/- 3.68 -3.12 +/- 3.83 Ba-140 -3.90 +/- 14.5 10.7 +/- 12.0 -6.30 +/- 13.8 La-140 2.48 +/- 3.30 -1.31 +/- 3.49 0.02 +/- 3.22 1-131 -0.30 +/- 0.31 -0.19 +/- 0.34 . -0.51 +/- 0.36 K-40 1280 +/- 132 1070 +/- 144 1340 +/- 163 NOVEMBER Cs-134 3.18 +/- 5.54 -2.30 +/- 4.80 -6.05 +/- 6.11 Cs-137 2.35 +/- 6.16 1.68 +/- 4.52 2.98 +/- 6.74 Ba-140 -9.92 +/- 24.8 12.9 +/- 22.3 10.4 +/- 27.2 La-140 1.27 +/- 6.28 1.46 +/- 6.48 -1.84 +/- 9.76 1-131 -0.43 +/- 0.42 -0.10 +/- 0.41 -0.09 +/- 0.33 K-40 1390 +/- 215 1320 +/- 167 1360 +/- 231 DECEMBER Cs-134 0.18 +/- 5.19 1.20 +/- 5.12 1.95 +/- 5.36 Cs-137 0.08 +/- 5.05 0.74 +/- 5.62 1.99 +/- 5.77 Ba-140 4.15 +/- 23.5 -6.34 +/- 26.0 -2.40 +/- 23.5 La-140 1.25 +/- 6.64 2.03 +/- 8.25 2.36 +/- 5.48 1-131 -0.09 :!;: 0.36 -0.19 +/- 0.48 -0.26 +/- 0.52 I K-40 1290 +/- 186 1540 +/- 213 1280 +/- 201
- I Sr-89 1.28 +/- 2.23 Sr-90 -0.07 +/- 0.30 36
TABLE 3-7: GAAN4 EMIITER CONCENTRATION IN FOOD PRODUCTS Suny Power Station, Suny County, Virginia - 2015 pCi/kg (wet)+/- 2 Sigma Page 1 ofl SAMPLING COLLECTION SAMPLE LOCATIONS DATE TYPE ISOTOPE Cs-134 Cs-137 1-131 K-40 BROCK 11/24/2015 Corn 8.89 +/- 12.9 4.27 +/- 13.0 6.51 +/- 21.3 3830 +/- 483 FARM Cs-134 Cs-137 1-131 K-40 11/24/2015 Peanuts -2.96 +/- 14.7 5.71 +/- 15.7 3.20 +/- 28.1 5640 +/- 688 Cs-134 Cs-137 1-131 K-40 SLADE 11/24/2015 Soybeans -0.58 +/- 15.0 8.44 +/- 17.0 9.86 +/- 32.2 17800 +/- 880 FARM 37
TABLE 3-8: GAMMA EMITTER AND TRITIUM CONCENTRATIONS IN WELL WATER Suny Power Station, Suny County, Virginia - 2015 pCi/liter +/- 2 Sigma Page 1 of2 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 Zn-65 SS 3/2/2015 -1.17 +/- 2.53 -0.06 +/- 2.48 -0.51 +/- 4.89 -0.84 +/- 2.12 -1.47 +/- 5.21 6/3/2015 -0.50 +/- 1.81 -0.87 +/- 2.05 1.63 +/- 4.45 -1.20 +/- 1.83 -3.49 +/- 4.50 9/7/2015 0.00 +/- 4.33 . -1.61 +/- 3.97 -4.07 +/- 7.75 4.62 +/- 3.63 -2.65 +/- 8.62 12/1/2015 -0.99 +/- 2.88 -0.34 +/- 2.78 -0.87 +/- .5.54 0.57 +/- 3.41 1.93 +/- 5.79 Nb-95 Zr-95 1-131
- Cs-134 Cs-137 3/2/2015 2.60 +/- 2.44 -1.15 +/- 3.93 -0.37 +/- 0.24 1.28 +/- 3.27 -1.21 +/- 2.75 6/3/2015 *-1.46 +/- 2.06 -0.03 +/- 3.92 -0.16 +/- 0.22 -0.42 +/- 2.17 0.94 +/- 2.01 9/7/2015 2.23 +/- 4.36. -1.09 +/- 7.16 -0.12 +/- 0.35 -7.08 +/- 4.76 -1.37 +/- 4.37 12/1/2015 0.99 +/- 2.81 5.47 +/- 4. 77 3.21 +/- 5. 70 -1.85 +/- 3.46 -1.10 +/- 2.86 Ba-140 La-140 H-3 3/2/2015 2.96 +/- 12.2 2.04 +/-' 3.92 711 +/- 1200 6/3/2015 -4.24 +/- 11.7 2.41 +/- 4.06 -30.8 +/- 772 9/7/2015 -5.46 +/- 17.6 0.17 +/- 5.28 38.0 +/- 568 12/1/2015 0.97 +/- 14.8 -5.60 +/- 5.16 38.2 +/- 1200 Mn-54 Co-58 Fe-59 Co-60 Zn-65 HIR 3/2/2015 0.00 +/- 2.67 0.20 +/- 3.33 0.93 +/- 5:92 2.02 +/- 2.77 -5.93 +/- 6.65 6/3/2015 -1.01 +/- 1.94 -0.39 +/- 2.19 -0.76 +/- 4.69 0.25 +/- 1.92 -4 ..54 +/- 4.91 9/7/2015 -2.47 +/- 3.42 0.87 +/- 3.53 0.45 +/- 8.45 -0.57 +/- 4.43 -0.98 +/- 8.40 12/1/2015 -1.80 +/- 2.73 -0.12 +/- 2.67 1.14 +/- 5.19 -0.28 +/- 2.95 3.39 +/- 5.91 Nb-95 Zr-95 1-131 Cs-134 Cs-137 3/2/2015 -2.78 +/- 3.35 -2.86 +/- 5.61 -0.29 +/- 0.24 -5.54 +/- 3.90 2.02 +/- 3.55 6/3/2015 1.01 +/- 2.27 0.03 *+/- 4.36 -0.25 +/- 0.29 -6.00 +/- 2.25 -0.54 +/- 2.08 9/7/2015 . -0.56 +/- 4.20 3.64 +/- 6.12 -0.06 +/- 0.10 1.77 +/- 3.72 3.53 +/- 4.59 12/1/2015 1.92 :t 3.12 0.00 +/- 4.56 2.61 +/- 5.44 0.13 +/- 2.69 1.51 +/- 2.55 Ba-140 La-140 H-3 3/2/2015 16.7 +/- 16.8 -0.15 +/- 4.13 -177 +/- 995 6/3/2015 -10.0 +/- 13.7 0.01 +/- 4.55 272 +/- 805 9/7/2015 -1.31 +/- 15.7 1.64 +/- 3.32 203 +/- 582 12/1/2015 1.49 +/- 13.8 -1.89 +/- 3.98 351 +/- 817 38
TABLE 3-8: GAMMA EMITTER AND TRITIUM CONCENTRATIONS IN WELL WATER Surry Power Station, Surry County, Vrrginia -2015 pCi/liter+/- 2 Sigma Page2 of2 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 Zn-65 cs 3/2/2015 -2.15 +/- 3.19 -0.31 +/- 3.72 -3.56 +/- 7.10 -0.34 +/- 3.47 -8.11 +/- 8.12 6/3/2015 -0.60 +/- 0.94 0.08 +/- 0.99 0.69 +/- 1.94 -0.13 +/- 0.96 0.18 +/- 2.08 9/7/2015 -2.79 +/- 3.98 2.53 +/- 3.79 0.71 +/- 8.30 0.06 +/- 3.77 8.28 +/- 9.65 12/1/2015 -0.43 +/- 2.91 -0.37 +/- 2.98 2.23 +/- 6.66 3.26 +/- 3.48 -2.02 +/- 7.53 Nb-95 Zr-95 1-131 Cs-134 Cs-137 3/2/2015 -2.05 +/- 3.07 -2.65 +/- 5.75 -0.20 +/- 0.24 1.70 +/- 3.26 0.30 +/- 3.53 6/3/2015 0.39 +/- 0.95 0.18 +/- 1. 71 -0.08 +/- 0.22 -0.06 +/- 0.98 0.02 +/- 0.96 9/7/2015 2.69 +/- 3.95 2.41 +/- 6.84 -0.01 +/- 0.11 -5.14 +/- 4.84 2.34 +/- 3.87 12/1/2015 -0.30 +/- 3.13 1.22 +/- 5.91 -0.69 +/- 6.24 -2.18 +/- 3.54 0.47 +/- 3.56 Ba-140 La-140 H-3 K-40 3/2/2015 6.39 +/- 16.4 3.03 +/- 6.51 710 +/- 1200 6/3/2015 3.23 +/- 5.48 -1.55 +/- 1.85 -115 +/- 745 9/7/2015 3.91 +/- 16.4 -2.36 +/- 4.49 12.7 +/- 567 88.5 +/- 71.8 12/1/2015 5.44 +/- 15.0 -1.61 +/- 6.00 717 +/- 850 39
TABLE 3-9: GAMM4 EMITTER AND TRITIUM CONCENTRATIONS IN RIVER WATER Suny Power Station, Suny County, Vrrginia - 2015 pCi/liter+/-2 Sigma Page I of2 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 Zn-65 SD. 1/13/2015 -0.70 +/- 2.33 -1.76 +/- 2.46 1.77 +/- 4.80 -0.13 +/- 2.42 -0.18 +/- 4.65 2/16/2015 0.21 +/- 1.68 -0.79 +/- 1.33 1.54 +/- 4.49 -0.57 +/- 1.48 1.98 +/- 3.29 3/9/2015 -0.79 +/- 1.95 0.28 +/- 1.83 -0.74 +/- 4.08 0.13 +/- 1.47 -0.53 +/- 3.95 4/21/2015 -1.30 +/- 2.95 -1.51 +/- 3.06 2.49 +/- 6.21 0.65 +/- 3.07 -12.2 +/- 7.03 5/25/2015 0.20 +/- 1.43 0.66 +/- 1.46 -0.28 +/- 3.35 1.47 +/- 1.52 -1.62 +/- 3.08 6/9/2015 2.90 +/- 3.31 -1.67 +/- 2.95 2.37 +/- 5.60 -0.71 +/- 3.41 -0.98 +/- 5.81 7/14/2015 -0.08 +/- 4.11 0.11 +/- 3.95 0.94 +/- 7.03 0.35 +/- 3.83 -0.22 +/- 8.39 8/11/2015 -0.65 +/- 3.11 -0.75 +/- 3.47 -2.67 +/- 6.10 -0.44 +/- 2.46 0.63 +/- 7.14 9/7/2015 1.33 +/- 3.74 -2.06 +/- 3.71 -6.35 +/- 9.63 -3.22 +/- 5.00 -1.69 +/- 6.82 10/13/2015 -1.24 +/- 2.35 0.73 +/- 2.12 . 0.21 +/- 4.19 -0.30 +/- 2.08 -8.02 +/- 5.12 11/6/2015 1.77 +/- 3:38 1.98 +/- 3.68 2.01 +/- 6.76 -2.20 +/- 3.95 -1.74 +/- 7.76 12/1/2015 -0.60 +/- 3.11 0.85 +/- 3.03 2.09 +/- 5.46 2.07 +/- 3.65 -2.26 +/- 6.79 Nb-95 Zr-95 1-131 Cs-134 Cs-137 1/13/2015 0.26 +/- 2.62 -5.37 +/- 4.40 2.09 +/- 5.32 -1.32 +/- 2.75 0.31 +/- 2.54 2/16/2015 0.14 +/- 1.85 . -1.06 +/- 2.79 -2.91 +/- 4.27 -0.60 +/- 1.52 0.76 +/- 1.75 3/9/2015 1.74 +/- 2.41 -2.27 +/- 3.69 -4.74 +/- 4.67 0.26 +/- 2.39 0.06 +/- 2.11 4/21/2015 2.83 +/- 3.05 -7.51 +/- 5.54 . -2.13 +/- 6.28 -1.47 +/- 5.53 -1.16 +/- 3.43 5/25/2015 -0.01 +/- 1.80 -0.79 +/- 2.80 _0.78 +/- 3.63 0.91 +/- 1.46 --0.36 +/- 1.61 6/9/2015 -0.11 +/- 3.21 -6.62 +/- 5.66 -4.07 +/- 5.95 -3.12 +/- 3.24 1.70 +/- 3.50 7/14/2015 1.95 +/- 3.62 2.51 +/- 5.97 4.00 +/- 4.95 -8.32 +/- 4.20 1.89 +/- 3.87 8/11/2015 -0.03 +/- 3.13 -1.79 +/- 5.31 -0.74 +/- 5.99 -1.15 +/- 3.67 0.03 +/- 3.64 9/7/2015 4.33 +/- 4.79 -3.06 +/- 8.54 0.04 +/- 5.80 -0.97 +/-,3.82 -2.30 +/- 5.52 10/13/2015 1.21 +/- 2.17 -1.14 +/- 3.96 -0.75 +/- 2.99 1.25 +/- 2.28 -0.77 +/- 2.75 11/6/2015 1.33 +/- 3.39 2.50 +/- 6.07 -0.87 +/- 4.78 1.25 +/- 3.86 -5.05 +/- 3.75 12/1/2015 -1.27 +/- 3.11 0.89 +/- 5.30 -3.28 +/- 5.30 -1.16 +/- 3.34 -0.17 +/- 3.32 Ba-140 La-140 H-3 K-40 I
1/13/2015 2.58 +/- 12.4 -1.84 +/- 3.61 I
2/16/2015 -3.76 +/- 9.75 -2.29 +/- 2.81 3/9/2015 15.4 +/- 11.4 1.48 +/- 3.47 -89.9 +/- 483 4/21/2015 -4.08 +/- 12.4 -2.05 +/- 4.31 5/25/2015 0.77 +/- 8.62 0.23 +/- 2.78 45.4 +/- 39.8 6/9/2015 -2.77 +/- 16.2 -0.76 +/- 4.51 893 +/- 1200 98.1 +/- 48.9 7/14/2015 6.59 +/- 13.4 0.15 +/- 4.60 98.1 +/- 74.2 8/11/2015 -11. 7 +/- 15.1 -1.54 +/- 5.11 122 +/- 69.0 9/7/2015 -0.46 +/- 19.4 2.02 +/- 6.80 -155 +/- 579 177 +/- 142 10/13/2015 -3.42 +/- 9.49 -1.23 +/- 2.90 84.5 +/- 49.2 11/6/2015 2.62 +/- 14.4 -1.98 +/- 4.98 100 +/- 66.0 12/1/2015 1.93 +/- 15.1 0.98 +/- 4.11 404 +/- 575 87.3 +/- 49.6 40
TABLE 3-9: GAMk!A EMITTER AND TRITIUM CONCENTRATIONS IN RIVER WATER Suny Power Station, Suny County, Vuginia - 2015 pCi/liter+/-2 Sigma Page2 of2 SAMPLING COLLECTION LOCATIONS DATE ISOTOPES Mn-54 Co-58 Fe-59 Co-60 Zn-65 SW-C 1/13/2015 -0.63 +/- 2.54 . 0.20 +/- 2.87 -2.88 +/- 5.62 -1.03 +/- 2.79 -7.78 +/- 6.59 2/16/2015 0.22 +/- 1.54 -0.21 +/- 1.72 1.83 +/- 5.27 -0.20 +/- 2.47 1.66 +/- 2.58 3/9/2015 -1. 79 +/- 2.13 -2.06 +/- 2.31 0.50 +/- 4.60 -1.02 +/- 2.00 -5.79 +/- 4.60 4/21/2015 -1.49 +/- 2.76 -1.35 +/- 2.75 0.45 +/- 5.53 -0.82 +/- 2.35 :-0.08 +/- 5.70 5/26/2015 -0.66 +/- 1.29 -0.45 +/- 1.26 -1.67 +/- 2.57 0.14 +/- 1.40 -4.49 +/- 3.19 6/9/2015 -2.38 +/- 2.93 0.28 +/- 3.03 -0.07 +/- 6.97 0.54 +/- 4.03 1.89 +/- 6.51 7/14/2015 1.07 +/- 4.36 6.06 +/- 5.03 -5.73 +/- 9.50 -4.39 +/- 5.25 12.2 +/- 10.8 8/11/2015 0.56 +/- 3.36 1.19 +/- 3.45 4.42 +/- 8.10 -1.98 +/- 4.08 -'7.35 +/- 8.54 9/7/2015 -5.12 +/- 5.40 1.01 +/- 3.54 1.94 +/- 12.6 -0.56 +/- 5.34 -4.64 +/- 11.4 10/13/2015 1. 70 +/- 2.89 -0.47 +/- 2.42 2.50 +/- 5.34 0.69 +/- 2.97 -7.61 +/- 6.13 11/6/2015 -1.74 +/- 2.98 -1.28 +/- 3.01 -0.19 +/- 5.28 0.08 +/- 3.84 -5.20 +/- 8.60 12/1/2015 1.10 +/- 2.84 -0.56 +/- 2.79 6.18 +/- 6.16 0.00 +/- 2.67 -6.45 +/- 6.86 Nb-95 Zr-95 1-131 Cs-134 Cs-137 1/13/2015 2.06 +/- 2.91 1.30 +/- 5.34 2.30 +/- 5.29 0.71 +/- 3.21 0.54 +/- 2.95 2/16/2015 1.53 +/- 2.73 1.93 +/- 3.89 2.08 +/- 5.18 -0.13 +/- 2.44 -0.38 +/- 2.51 3/9/2015 -0.19 +/- 2.29 0. 79 +/- 4.28 3.09 +/- 5.65 -3.72 +/- 2.50 -0.96 +/- 2.40 4/21/2015 0.71 +/- 2.72 . 2.19 +/- 5.06 -4.04 +/- 5.98 0.54 +/- 4.45 0.31 +/- 2.80 5/26/2015 1.28 +/- 1.39 0.60 +/- 2.19 1.23 +/- 2.82 -0.03 +/- 1.63 0.72 +/- 1.33
' ! 6/9/2015 1.05 +/- 3.02* 1.12 +/- 5.94 0.65 +/- 5.67 -1.70 +/- 3.34 0.08 +/- 3.43 7/14/2015 1.49 +/- 4.45 3.26 +/- 8.16 -3.75 +/- 6.11 1.54 +/- 4.63 -1.00 +/- 5.09 8/11/2015 1.73 +/- 3.19 2.10 +/- 5.50 -4.43 +/- 5.69 -0.65 +/- 3.33 -0.11 +/- 3.85 9/7/2015 -0.56 +/- 4.56 0.75 +/- 7.87 -0.79 +/- 5.54 0.33 +/- 4.40 0.50 +/- 5.22 10/13/2015 0.36 +/- 2.85 -3.34 +/- 4.84 3.83 +/- 3. 78 -1.08 +/- 3.06 2.11 +/- 3.03 11/6/2015 -1.23 +/- 3.66 2.33 +/- 5.15 . 1.76 +/- 5.27 -1.78 +/- 3.12 1.13 +/- 3.66 12/1/2015 -0.33 +/- 2.79 3.49 +/- 5.22 3.02 +/- 5.37. 2.55 +/- 2.54 1.22 +/- 3.08 Ba-140 La-140 H-3 K-40 Th-228
- _I 1/13/2015 -9.77 +/- 13.6 4.49 +/- 4.92 2/16/2015 1.62 +/- 8.85 3.22 +/- 4.84 3/9/2015 6.29 +/- 13.8 -3.61 +/- 3.34 -244 +/- 470 4/21/2015 -8.12 +/- 14.7 0.49 +/- 3.92 5/26/2015 0.50 +/- 7.02 0.52 +/- 2.15 ' 4.69 +/- 2.61 6/9/2015 -4.06 +/- 22.2 1.78 +/- 5.95 -1090 +/- 962 71.7 +/- 52.7 7/14/2015 -1.90 +/- 20.2 -1.49 +/- 5. 79 15.2 +/- 10.0 8/11/2015 0.52 +/- 16.4 -5.08 +/- 6.31 68.9 +/- 63.7 9/7/2015 -6.41 +/- 13.9 -3.81 +/- 7.32 -360 +/- 563 167 +/- 128 10/13/2015 4.53 +/- 10.6 1.80 +/- 3.68 11/6/2015. -0.15 +/- 12.6 . 0.83 +/- 4.09 12/1/2015 -2.75 +/- 15.1 -3.29 +/- 4.69 161 +/- 551 41
TABLE 3-10: GAMMA EMITTER CONCENTRATIONS IN SILT Suny Power Station, Suny County, Vrrginia -2015 pCi/kg (dry)+/- 2 Sigma Page 1 ofl SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Cs-134 Cs-137 K-40 Th-232 Th-228 SD 3/9/2015 21.4 +/- 43.5 24.1 +/- 50.8 12900 +/- 1330 1510 +/- 207 1570 +/- 129 9/3/2015 9.64 +/- 79.7 76.4 +/- 90.5 21100 +/- 2630 1320 +/- 285 1110 +/- 177 Ra-226 3/9/2015 3260 +/- 1660 9/3/2015 Cs-134 Cs-137 K-40 Th-232 Th-228 CHIC-C 3/9/2015 14.5 +/- 89.7 196 +/- 134 21200 +/- 2830 1790 +/- 444 1460 +/- 389 9/2/2015 -5.42 +/- 105 214 +/- 130 16900 +/- 2770 1130 +/- 302 1270 +/- 263 Ra-226 3/9/2015 9/2/2015 2260 +/- 2200 42
TABLE 3-11: GA1Wl:t4 EMITTER CONCENTRATIONS IN SHORELINE SEDIMENT Suny Power Station, Suny County, Virginia- 2015 pCi/kg (dry)+/- 2 Sigma Page 1of1 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE C~134 C~137 K-40 Ra-226 Th-228 HIR 2/23/2015 -10.1 +/- 31.6 -4.60 +/- 23.7 7760 +/- 1000 1420 +/- 912 315 +/- 88.5 8/11/2015 -13.5 +/- 29.8 -12.5 +/- 29.6 5720 +/- 819 734 +/- 79.6 Th-232 2/23/2015 444 +/- 102 8/11/2015 737 +/- 108 CHIC-C 2/23/2015 0.25 +/- 18.4 -7.78 +/- 18.3 2430 +/- 495 927 +/- 639 330 +/- 53.0 8/11/2015 34.3 +/- 35.4 -17.2 +/- 33.9 1640 +/- 600 2350 +/- 1250 1370 +/- 106 Th-232 2/23/2015 413 +/- 86.9 8/11/2015 1350 +/- 173 43
TABLE 3-12: GAMMA EMITTER CONCENTRATION IN FISH Suny Power Station, Suny County, Virginia*- 2015 pCi/kg (wet) ::l;: 2 Sigma Page 1of1 SAMPLING COLLECTION SAMPLE LOCATION DATE TYPE ISOTOPE K-40 Mn-54 Co-58 Fe-59 SD 4/6/2015 Catfish 2910 +/- 871 1.20 +/- 37.3 -4.54 +/- 34.6 0.18 +/- 63.7 4/6/2015 Game fish 1040 +/- 600 -14.5 +/- 33.8 -21.6 ~ 34.1 -16.8 +/- 75.4 10/7/2015 Catfish 1690 +/- 547 -8.83 +/- 21.4 5.86 +/- 20.6 21.8 +/- 52.9 10/7/2015 Game fish 1950 +/- 771 2.28 +/- 29.2 -3.01 +/- 33.8 19.5 +/- 93.8 Co-60 Zil-65 Cs-134 . Cs-137 4/6/2015 Catfish -13.3 +/- 35.1 -61.0 +/- 79.8 8.94 +/- 39.9 19.8 +/- 38.3 4/6/2015 Game fish 25.9 +/- 33.2 -14~0 +/- 73.2 -81.6 +/- 40.6 -4.67 +/- 38.8 10/7/2015 Catfish 4.30 +/- 24.3 0.42 +/- 42.6 2.65 +/- 25.6 9.87 +/- 23.1 10/7/2015 Game fish 31.9 +/- 30*.8 31.0 +/- 79.6 -2.74 +/- 35.1 -21.9 +/- 36.8 44
TABLE 3-13: GAMMA EMITTER CONCENTRATIONS IN OYSTERS Suny Power Station, Suny County, Vrrginia - 2015 pCi/kg (wet) +/- 2 Sigma Page 1of1 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 POS 3/9/2015 -2.26 +/- 23.0 -12.4 +/- 25.7 5.51 +/- 44.7 16.7 +/- 24.2 9/3/2015 31.2 +/- 32.1 -9.59 +/- 41.4 -61.9 +/- 72.5 -6.36 +/- 32.8 Zn-65 Cs-134 Cs-137 K-40 3/9/2015 23.0 +/- 49.9 -20.0 +/- 24.1 2.75 +/- 25.2 867 +/- 539 9/3/2015 19.5 +/- 34.8 15.7 +/- 33.5 0.70 +/- 35.8 Mn-54 Co-58 Fe-59 Co-60 MP 3/10/2015 -22.3 +/- 33.1 -34. 7 +/- 36.6 -44.9 +/- 65.0 0.98 +/- 31.8 9/3/2015 -4.80 +/- 26.6 0.23 +/- 25.7 -31.6 +/- 60.6 -25.2 +/- . 25.1 Zn-65 Cs-134 Cs-137 K-40 3/10/2015 -105 +/- 84.6 16.2 +/- 42.1 19.7 +/- 36.2 955 +/- 643 9/3/2015 ' -72.9 +/- 84.5 15.9 +/- 27.7 9.34 +/- 24.9 Mn-54 Co-58 Fe-59 Co-60 LC 3/10/2015 -12.9 +/- 19.4 5.73 +/- 20.4 13.4 +/- 54.6 19.6 +/- 22.1 9/3/2015 -12.6 +/- 37.9 9.64 +/- 40.1 -74.2 +/- 114 2.49 +/- 24.8 Zn-65 Cs-134 Cs-137 K-40 3/13/2013 -26.7 +/- 38.8 -3.04 +/- 21.6 4.29 +/- 19.4 611 +/- 399 9/3/2015 -6.90 +/- 96.6 0.53 +/- 36.0 7.16 +/- 30.5 45
TABLE 3-14: GAMMA EMITTER CONCENTRATIONS IN CLAMS Suny Power Station, Suny County, Vrrginia - 2015 pCi/kg (wet) +/- 2 Sigma Page 1 of 1 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE Mn-54 Co-58 Fe-59 Co-60 JI 3/9/2015 -1.79 +/- 22.0 -4.38 +/- 28.0 21.2 +/- 51.6 -3.30 +/- 25.9 9/2/2015 4.35 +/- 27.7 5.45 +/- 24.7 -1.48 +/- 61.9 6.07 +/- 22.2 Zn-65 Cs-134 Cs-137 3/9/2015 -36.4 +/- 52.1 -17.2 +/- 25.4 . 13.2 +/- 24.9 9/2/2015 -7.41 +/- 44.4 -0.84 +/- 28.5 -17.3 +/- 36.8 Mn-54 Co-58 Fe-59 Co-60 SD 3/9/2015 12.4 +/- 27.1 -8.75 +/- 28.4 -23.5 +/- 61.9 13.0 +/- 29.4 9/3/2015 -10.7 +/- 23.5 -14.8 +/- 34.8 -27.5 +/- 61.0 -9.49 +/- 30.1 Zn-65 Cs-134 Cs-137 3/9/2015 -46.5 +/- 6i4 -22.7 +/- 37.4 16.0 +/- 30.0 9/3/2015 23.2 +/- 63.4 3.44 +/- 29.5 -14.6 +/- 31.3 Mn-54 Co-58 Fe-59 Co-60 CHIC-C 3/9/2015 -1.36 +/- 20.1 -8.33 +/- 22.0 15.6 +/- 52.8 -2.10 +/- 17.8 9/2/2015 9.52 +/- 21.7 8.29 +/- 22.5 16.9 +/- 39.7 2.06 +/- 21.6 Zn-65 Cs-134 Cs-137 3/9/2015 -66.1 +/- 46.5 2.24 +/- 28.1 0.41 +/- 22.0 9/2/2015 -51.4 +/- 60.8 -10.3 +/- 20.5 -16.8 +/- 25.1 46
TABLE 3-15: GAMMA EMITTER CONCENTRATIONS IN CRABS Suny Power Station, Suny County, Vrrginia -.2015 pCi/kg (wet)+/- 2 Sigma Page 1 of 1 SAMPLING COLLECTION LOCATIONS DATE ISOTOPE K-40 Mn-54 Co-58 Fe-59 SD 6/9/2015 1140 +/- 725 -9.54 +/- 30.5 9.19 +/- 33.8 -21.1 +/- 78.9 Co-60 Zn-65 Cs-134 Cs-137 18.3 +/- 27.9 -55.4 +/- 75.8 -25.0 +/- 33.3 17.7 +/- 34.2 47
- 4. DISCUSSION OF RESULTS ,
Data from the radiological analyses of environmental media collected during 2015 and tabulated in Section 3, are discussed below. Tue 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. Tue results of the Interlaboratory Comparison Program are provided in Appendix B.
Tue predominant radioactivity detected throughout 2015 was from external sources, such as fallout from nuclear weapons tests (cesium-137) and naturally occurring radionuclides. Naturally occurring nuclides such as beryllium-7, potassium-40, radium-226, thorium-228 and thorium-232 were detected in numerous samples.
Tue following is a discussion and summary of the results of the environmentcil measurements taken during the 2015 reporting period.
4.1 Gamn,,a Exposure Rate A thermoluminescent dosimeter (TLD) is an inorganic crystal used to detect ambient radiation. 'Two TLDs, made of CaF and LiF elements and specifically designed for environmental monitoring, are deployed at each sampling location.
TLDs are placed in two concentric rings around the station. The inner ring is located in the vicinity of the site boundary, and the outer ring is located at approximately five miles from the station. TLDs are also placed in_ special interest areas, such as population centers and nearby residences. Additional TLDs serve as controls. Ambient radiation comes from naturally occurring radioisotopes in the air and soil, radiation from cosmic origin, fallout from nuclear weapons testing, station effluents and direct radiation from the station.
Tue results of the TLD analyses are presented in Table 3..:2. Figure 4-1 shows a historical trend of TLD exposure rate measurements, comparing the average of indicator TLDs located near the site boundary and at 5 miles to the average of all control TLD locations. Control and indicator averages indicate a steady
- relationship. In 2013, Panasonic UD-814 environmental TLDs replaced Harshaw environmental TLDs that were used since 2001. Benchmarking showed that Panasonic UD-814 TLDs were the industry best environmental TLD with improved precision over the Harshaw TLDs. Along with implementing new environmental 48
TLDs in 2013, an improved method for calculating control dosimeter dose was implemented to estimate transit dose. A program review found that control dosimeters cannot be used directly to assess the transit dose, since control dosimeters also accrue dose from cosmic radiation while stored in the shielded storage cask/ cave. Therefore, additional calculations must be made in order to determine the transit *dose component. This transit dose component was determined by processing the control dosimeters, and subtracting out the monitoring period storage dose. Previously, control dosimeters were assumed to be a direct measurement of transit dose which resulted in a non-conservative (lower) result of reported field doses. The field dose with the replacement TLDs is higher than that of the previously used TLDs as the greater precision and accuracy of the replacement TLD along with improved control dosimeter dose provides a more representative response to ambient radiation.
Figure4-1: DIRECT RADIATION MEASUREMENT TLD RESULTS
£ 6 +-~~~~~~~~~~~~~~~~~~~~~~~~~~~~=--tr~
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~ 4 ~--.,.~~~--4~~.__~~-:P~~~~r-~>A.,---~i=a:r--~~~~~~~---1 c:
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~ 3 ~-?9F--..._........,~l--~--->so~~~IHll~F-'-.:-="'rl'.~--'=+---~~~~~~~~----t 0::
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-+- SiteBoundry _._ SMile --.- AvgContro l I 4.2 Airborne Gross Beta Air is continuously sampled by passing it through glass fiber particulate filters.
The filters collect airborne particulate radionuclides. Once a week the samples are collected and analyzed for gross beta activity. Results of the weekly gross beta analyses are presented in Table 3-3. A review of the results from control and indicator locations continues to show no significant variation in measured activities (see Figure 4-2 and 4-3). This indicates that any station contribution is 49
activities (see Figure 4-2 and 4-3). This indicates that any station contribution is not measurable. As evident in Figure 4-2, the control gross beta concentration deviated from the norm for the sampling period of June 30 - July 7. Electrical power was lost to the control sampler during this sampling period.
Gross beta activity found during the pre-operational and early operating period of Surry Power Station was higher because of nuclear weapons testing. During that time, nearly 740 nuclear weapons were tested worldwide. In 1985 weapons testing ceased, and with the exception of the Chernobyl accident in 1986, airborne gross beta results have remained steady.
Figure 4-2: 2015 GROSS BETA IN AIR PARTICULATES 0.045 0.040 0.035 0.030
.., 0.025
.E uc. 0.020 0.015 0.0 10 0.005 0.000 V)
°'(;! ~ \0 N \0
°'~
("') t- - '<!" 00 N \0 0 ("') t- 0 '<!" 00 N V)
°'
("') t- -
~
N
(;!
N --
("')
(;!
("') ~ ~
l/")
(;!
V)
~
\0 ID ~
t-t- -- --
("')
t- 00 ~ ~ ~ ~ ~
~
-- ~
N N !:'N.::'
I ---+--- Avg Indicator ___.....__ Ave Con trol I 50
Figure 4-3: GROSS BETA IN AIR PARTICULATES HISTORICAi. TREND
~
~
~
~
~
~
~
~
g0 0 0 0
~ 80 g0 ~
0
~
0 80 ~
0
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0 0 0 0 0 0 N N N N N N N N N N N N N N N N
- - - Avg lndicator __._ AvgControl - Avg-Pre Op - - Required LLD 4.3 Airborne Radioiodine Air is also continuously sampled for radioiodines by passing it 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. These results are sirriilar to pre-operational data and the results of samples taken prior to and after the 1986 accident in the Soviet Union at Chernobyl and the Fukushima Daiichi nuclear incident in 2011 .
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 is produced by cosmic processes. No man-made radionuclides were identified. These analyses confirm the lack of station effects.
51
4.5 CowMilk Analysis of milk samples is generally the most sensitive indicator of fission product existence in the terrestrial environment. This, in combination with the fact that consumption of milk is significant, results in this pathway usually being the most critical from the plant release viewpoint. This pathway also shows measurable amounts of nuclear weapons testing fallout. Therefore, this media needs to be carefully evaluated when trying to determine if there is any station effect.
Results of gamma spectroscopy indicate no detectable station related radioactivity in the milk samples. In years past, cesium-137 had been detected sporadically.
The occurrences were attributed to residual global fallout from past atmospheric weapons testing. Cs-137 was not detected at a level above the LLD in 2015.
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 composite samples at an average concentration of 1. 78 pCi/L. Sr-90 is not a component of the station radiological effluents and is a product of nuclear weapons testing fallout which has been well documented.
- 4. 6 Food Products Three samples were collected and analyzed by gamma spectroscopy. The results of the analyses are presented in Table 3-7. As expected, naturally occurring potassium-40 was detected in all samples. The average concentration is consistent with that observed in previous years. No station related radioactivity was detected.
- 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 at three indicator locations and analyzes for gamma radiation and for tritium. The results of these analyses are presented in Table 3-8. Consistent with past monitoring, no station related radioactivity was detected. No gamma emitting isotopes were detected during the pre-operational period.
- 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 spectroscopy. The 52
monthly samples are also composited and analyzed for tritium on a quarterly basis. Tritium was not detected and, with the exception of natural products, no other gamma emitters were detected. The naturally occurring radionuclides detected were potassium-40 and thorium-228. No station related radioactivity was detected.
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 two locations, one upstream and one downstream of the station. The results of the gamma spectroscopy analyses are presented in Table 3-10. Naturally occurring potassium-40, radium-226, thorium-228 and thorium-232 were detected. Historically, cobalt-60 has been detected in samples obtained from the indicator location (SD). Cobalt-60 has not been detected since 2003. Trend graphs of cobalt-60 and cesium-137 in silt appear in Figures 4-4 and 4-5.
The concentrations of cesium-137 detected indicate a continual decreasing trend as seen for over two decades. The detection of cesium-137 in both control and indicator samples and decreasing levels indicate that the presence of cesium-137 is the result of accumulation and runoff into the river of residual weapons testing fallout. Its global presence has been well documented. During the pre-operational period, cesium-137 was detected in silt samples with an average concentration as indicated in Figure 4-5. At the control location, cesium-137 was detected with an average concentration of 205 pCi/kg. In 2015, for the first time, cesium-137 was not detected in the indicator location. The cesium-137 concentrations in silt continue to decline and fluctuate around the REMP lower limit of detection (LLD) concentration, which could account for the non-detect.
This trend will continue to be closely monitored.
53
Figure 4-4: COBALT-60 IN SILT l.OE+ 03 "C
Cl
~ l.OE+02 uQ.
l.OE+Ol
"<t" 0
0 N
\0 0
0 N
00 0
0 N
0 0
N N
0 N
"<t" 0
N
-+- Control - Chickahominy -+- Station Discharge 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 2015.
54
Figure 4-5: CESIUM-137 IN SILT
-+- Co ntro l - Chickahominy ......__ Station Discharge - Ave-Pre Op - Required LLD 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. The activities of these radionuclides indicate a steady trend. There were no radionuclides attributable to the operation of the station found 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. These results are the same as those seen over the last decade. No activity was observed in this media except for naturally occurring potassium-40.
55
4.12 Oysters Oysters were collected from three different locations.
- The results of the oyster analyses are presented in Table 3-13.
There were no gamma emitting radionuclides detected in oysters sampled except for naturally occurring potassium-40. No station related radioactivity has been detected in this media since 1991. The absence of station related radionuclides is attributable to the replacement of steam generators in 1982 and past improvements made to liquid effluent treatment systems.
4.13 Clams Clams are analyzed from three different locations. The results of the gamma spectroscopy analyses are presented in Table 3-14. Like oysters, no station related radioactivity was *detected.
4.14 Crabs A crab sample was collected in June 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 were detected in the sample. This is consistent with pre-operational data and data collected over the past decade.
56
- 5. PROGRAM EXCEPTIONS There were two REMP exceptions for scheduled sampling and analysis during 2015.
- 1. For the sample period Jan 13 - 20, samples for gross beta and iodine-131 in air were not obtained from the BASF air sampling station. The BASF air sampler was located within a substation that was permanently removed from service during the Jan 13 - 20 sample period. It was unknown to Surry Power Station that the substation was to be removed from service. Prior to the loss of power to the sampler, insufficient sample volume had accumulated to meet the lower limit of detection for gross beta and iodine-131 analyses.
- 2. For the sample period Jun 30 -Jul 7, samples for gross beta and iodine-131 in air were not obtained from the NN air sampling station. The sampler was found inoperable upon arrival at the NN air sampling station. Prior to the loss of power to the sampler, insufficient sample volume had accumulated to meet the lower limit of detection for gross beta and iodine-131 analyses.
NOTE: Due to the issues described above, Surry Power station has installed electronic monitoring devices on all REMP air samplers. These devices monitor for loss of power and low sample flow rate. If either of these conditions is
. detected on an air sampler, the device makes an immediate notification by page and e-mail. The condition can then be assessed and appropriate actions taken to prevent the loss of monitoring for a sampling period.
The 2013 Annual Radiological Environmental Operating Report was submitted with iodine-131 in air sample data omitted for the sample period February 05 through 12 for all eight sampling stations. Appendix C contains the revised analysis data table for iodine-131 in air for 2013.
57
- 6. CONCLUSIONS The results of the 2015 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 - Control and indicator location averages continue to indicate a steady relationship and trend over the long term.
> Airborne Exposure Pathway - Analysis of charcoal cartridge samples for radioiodines indicated no positive activity was detected. Quarterly gamma isotopic analyses of the composite
- particulate samples identified only naturally occurring beryllium-7 and .Potassium-40. Air particulate gross beta concentrations at all of the indicator locations for 2015 trend well with
- the control location.
> Milk - Milk samples are an important indicator measuring the effect of radioactive iodine and radionuclides in airborne releases. Cesium-137 and iodine-131 were not detected in any of the thirty-six samples. Naturally occurring potassium-40 was detected at a similar level when compared to the averages of th~ previous years.
I :
Strontium-90 was detected in two samples at an average concentration of
- 1. 78 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 potassium-40 was detected in all three samples. In the past, cesium-137 had occasionally been detected in these samples and is attributable to global fallout from past nuclear weapons testing. Cesium-137 was not detected in any of the three samples collected in 2015.
> Well Water - Well water sample analyses indicated there was no radioactivity attributable to the operation of the station. This trend is consistent throughout the monitoring period.
)- River Water - River water samples were analyzed for gamma emitting radionuclides and tritium. Only the naturally occ:urring gamma emitting radionuclides potassium-40 and thorium-228 were detected. Tritium was not detected.
)- Silt - Cesium-137 was detected in the control sample and not in the indicator sample. The presence of cesium-137 is attributable to residual weapons testing fallout and its presence has been well documented. Cobalt-60 has not been detected since 2003.
- 58
);>- Shoreline Sediment - Naturally occurring radionuclides were detected at concentrations equivalent to normal* background activities. There were no radionuclides attributable to tb.e operation of Surry Power Station found in any sample.
Aquatic Biota
);>- Fish - As expected, naturally occurring potassium-40 was detected. There were no other gamma emitting radionuclides detected in any of the fish samples.
>-- Oysters and Clams - Other than naturally occurring potassium-40, there were no other gamma emitting radionuclide*s detected in any of the oyster or clam samples. *
);>- Crabs - Naturally occurring potassium-40 was detected. No other gamma emitting radionuclides were detected.
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, "Envrronmental 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)".
I
~
- 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.
61
APPENDICES 62
APPENDIX A: LAND USE CENSUS Year 2015 63
LAND USE CENSUS*
Surry Power Station, Surry County, Virginia January 1 to December 31, 2015 Page 1 of 1 Nearest Nearest Nearest Nearest Sector Direction Resident Garden** Cow Goat A N 4.1@ 10° (a) (a) (a)
B NNE 1.9 @32° (a) (a) (a) c NE 4.7@35° (a) (a) (a)
D ENE (a) (a) (a) (a)
E E (a) (a) (a) (a)
F ESE (a) (a) (a) (a)
G SE 2.8@ 142° (a) (a) (a)
H SSE 2.7@ 158° 2.7@ 158° (a) (a)
J s l.7@181° 2.0@ 183° (a) (a)
K SSW 1.9@ 192° 1.9@ 192° 4.8@200° (a)
L SW 2.3@221° 4.7@228° (a) (a)
M WSW 0.4@244° 3.6@245° (a) (a)
N w 3.1 @260° 3.4@260° (a) (a) p WNW 4.9@283° (a) (a) (a)
Q NW 4.6@321° (a) (a) (a)
R NNW 3.8 @338° 4.4@334° 3.7@336° (a)
- 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 broadleaf vegetation.
(a) None 64
APPENDIX B:
SUMMARY
OF INTERLABORATORY COMPARISONS Year 2015 65
INTRODUCTION This appendix covers the Interlaboratory Comparison Program (ICP) of Teledyne Brown Engineering (TBE). TBE use QA/ QC samples provided by Eckert & Ziegler Analytics, Inc., Environmental Resource Associates (ERA) and the Mixed Analyte Performance Evaluation Program (MAPEP) to monitor the quality of analytical processing associated with the REMP. Each provider has a documented Quality Assurance program and the capability to prepare Quality Control materials traceable to the National Institute of Standards and Technology (NIST). The providers supply the samples to TBE, and upon receipt, the laboratories perform the analyses in a normal manner. The results are then reported to the provider for evaluation. The suite of QA/QC samples is designed to provide sample media and radionuclide combinations that are offered by the providers and included in the REMP and typically includes:
>- milk for gamma nuclides and low-level iodine-131 analyses,
>- milk for Sr-89 and Sr-90 analyses,
>- water for gamma nuclides, low-level iodine-131, and gross beta analyses,
>- water for tritium, Sr-89, and Sr-90 analyses,
>- cartridge for I-131 analyses,
>- air filter for gamma nuclide, gross beta, and Sr-90 analyses.
The accuracy of each result reported to Eckert & Ziegler Analytics, Inc. is' measured by the ratio of the TBE result to the known value. Accuracy for all other results is based on statistically derived acceptance ranges calculated by the providers.
- An investigation is undertaken whenever the ratio or reported result fell outside of the acceptance range.
RESULTS The TBE ICP results are included in the following tables for the first through the fourth quarters of 2015. Some analyses did not meet the acceptance criteria. TBE initiated non-conformance reports (NCRs) to document and address the analyses.
The results of the NCRs are as follows.
- 1. NCR 15-09, ERA water sample RAD-101 faile~ Sr-89 and Sr-90. For Sr-89, the TBE value of 45.2 pCi/L was lower than the known value of 63.2 pCi/L, failing below the lower acceptance limit of 51.1 pCi/L. For Sr-90, the TBE value of 28.0 pCi/L was lower than the known value of 41.9pCi/L, failing below the lower acceptance limit of 30.8 pCi/L. A reanalysis could not be performed because the sample was consumed in the original analysis. Raw and QC data associated with the analysis were reviewed. The original strontium gravimetric yields were very high at 97.6 % and 103.8%. Yields this high indicates the presence of excess calcium and would likely benefit 66
- from a second fuming HNOs separation. Typical strontium yields run around 60% or 70%. Higher yields would result in lower activities. Going forward, a second fuming HNOs separation will be performed on samples with high yields.
- 2. NCR 15-18, Eckert & Ziegler Analytics air particulate filter sample El 1237 failed Cr-51 .. The TBE value of 323 pCi was higher than the known value of 233 pCi. The resultant ratio was 1.39 failing above the high acceptance limit of 1.30. All raw and associated QC data were reviewed and fell within acceptance criteria limits. The air particulate sample is counted at a distance above the surface of the detector to avoid detector summing which could alter the results. Chromium-51 has the shortest half-life (27.7 days) and the lowest gamma energy (320.08 keV) of this mixed nu~lide sample.
Additionally, Cr-51 has only one gamma energy and also has a low intensity (9.38 gamma photons produced per 100 disintegrations). rrhis geometry produces a larger error for the Cr-51 and other gamma emitters as any distance from the detector decreases the counting rate and the probability of accurately detecting the nuclide energy. Taking into consideration the uncertainty, the activity of Cr-51 overlaps with the known value at a ratio of 1.19, which would statistically be considered acceptable. TBE believes this failure is specific to the sample and has no impact on client samples.
- 3. NCR 15-21, MAPEP filter sample 15-RdF33 failed Sr-90. The TBE value of 1.5 Bq/sample was lower than the known value of 2.18 Bq/sample, failing below the lower acceptance limit of 1.53. A rerun of the sample was acceptable, 1.94 Bq, however still below 2.18 Bq. It appears that the Sr-90 was lost during the separation chemistry although the exact cause could not be identified. In the past, MAPEP has added substances (unusual compounds found in DOE complexes) to various matrices that have resulted in incomplete removal of the isotope of interest for the laboratories analyzing the cross 'checks. This is possibly the case with this sample. Many compounds, if not properly accounted for or removed in the sample matrix, can cause interferences to either indicate lower or higher activity. TBE will .
no longer analyze the air particulate Sr-90 through MAPEP but will participate in the Analytics cross check program to perform Sr-90 in the air particulate matrix.
67
ECKERT & ZIEGLER ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING ENVIRONMENTAL SERVICES (PAGE1 OF3)
Identification Reported Known Ratio (c)
MonthNear Number Matrix Nuclide Units Value(a) *Value (b) TB E/Analytics Evaluation (d)
March 2015 E11181 Milk Sr-89 pCi/L 88.9 97.2 0.91 A Sr-90 pCi/L 12.2 17.4 0.70 w E11182 Milk 1-131 pCi/L 61.3 65 0.94 A Ce-141 pCi/L 104 113 0.92 A Cr-51 pCi/L 265 276 0.96 A Cs-134 pCi/L 138 154 0.90 A Cs-137 pCi/L 205 207 0.99 A Co-58 pCi/L 178 183 0.97 A Mn-54 pCi/L 187 188 0.99 A Fe-59 pCi/L 182 177 1.03 A Zn-65 pCi/L 345 351 0.98 A Co-60 pCi/L 379 405 0.94 A E11184 Filter Ce-141 pCi 107 85.0 1.26 w Cr-51 pCi 261 224 1.17 A Cs-134 pCi 74.6 77.0 0.97 A Cs-137 pCi 99.6 102 0.98 A Co-58 pCi 99.8 101 0.99 A Mn-54 pCi 99.2 96.9 1.02 A Fe-59 pCi 109 119 0.92 A Zn-65 pCi 188 183 1.03 A Co-60 pCi 200 201 1.00 A E11183 Charcoal 1-131 pCi 82.9 85.4 0.97 A June 2015 E11234 Milk Sr-89 pCi/L 94.9 92.6 1.02 A Sr-90 pCi/L 14.3 12.7 1.13 A E11238 Milk 1-131 pCi/L 93.2 95.9 0.97 A Cr-51 pCi/L 349 276 1.26 w Cs-134 pCi/L 165 163 1.01 A Cs-137 pCi/L 143.0 125 1.14 A Co-58 pCi/L 82.0 68.4 1.20 A Mn-54 pCi/L 113 101 1.12 A Fe-59 pCi/L 184 151 1.22 w Zn-65 pCi/L 269 248 1.08 A Co-60 pCi/L 208 193 1.08 A Footnotes are on page 3 of 3.
68
ECKERT & ZIEGLER ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING ENVIRONMENTAL SERVICES (PAGE20F3)
Identification *Reported Known Ratio (c)
Month/Year Number Matrix Nuclide Units Value(a) Value (b) IBE/Analytics Evaluation (d)
June 2015 E11237 Filter Cr-51 pCi 323 233 1.39 N (1)
Cs-134 pCi 139 138 1.01 A Cs-137 pCi 111 106 1.05 A Co-58 pCi 54.0 57.8 0.93 A Mn-54 pCi 96.8 84.9 1.14 A Fe-59 pCi 162 128 1.27 w Zn-65 pCi 198 210 0.94 A Co-60 pCi 178 163 1.09 A E11236 Charcoal 1-131 pCi 93.9 80 1.17 A September 2015 E11289 Milk Sr-89 pCi/L 95.7 99.1 0.97 A Sr-90 pCi/L 15.4 16.4 0.94 A E11290 Milk 1-131 pCi/L 94.9 99.9 0.95 A Ce-141 pCi/L 228 213 1.07 A Cr-51 pCi/L 499 538 0.93 A Cs-134 pCi/L 208 212 0.98 A Cs-137 pCi/L 270 255 1.06 A Co-58 pCi/L 275 263 1.05 A Mn-54 pCi/L 320 290 1.10 A Fe-59 pCi/L 255 226 1.13 A Zn-65 pCi/L 392 353 1.11 A Co-60 pCi/L 350 330 1.06 A E11292 Filter Ce-141 pCi 104 85.1 1.22 w Cr-51 pCi 262 215 1.22 w Cs-134 pCi 86.1 . 85 1.02 A Cs-137 pCi 93.0 102 0.91 A Co-58 pCi 106 105.0 1.01 A Mn-54 pCi 117 116 1.01 A Fe-59 pCi 94.8 90 1.05 A Zn-65 pCi 160 141 1.13 A Co-60 pCi 146 132 1.11 A E11291 Charcoal 1-131 pCi 85.9 81.7 1.05 A December 2015 E11354 Milk Sr-89 pCi/L 96.2 86.8 1.11 A Sr-90 pCi/L 14.8 12.5 1.18 A Footnotes are on page 3 of3.
69
ECKERT & ZIEGLER ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING ENVIRONMENTAL SERVICES (PAGE30F3)
Identification Reported Known Ratio (c)
Month/Year Number Matrix Nuclide Units Value(a) Value (b) IBE/Analytics Evaluation (d)
December 2015 E11355 Milk 1-131 pCi/L 95.1 91.2 1.04 A Ce-141 pCi/L 117 129 0.91 A Cr-51 pCi/L 265 281 0.94 A Cs-134 pCi/L 153 160 0.96 A Cs-137 pCi/L 119 115 1.03 A Co-58 pCi/L 107 110 0.97 A Mn-54 pCi/L 153 145 1.06 A Fe-59 pCi/L 117 108 1.08 A Zn-65 pCi/L 261 248 1.05 A Co-60 pCi/L 212 213 1.00 A E11357 Filter Ce-141 pCi 89.9 84.0 1.07 A Cr-51 pCi 215 184 1.17 A Cs-134 pCi 103 105 0.98 A Cs-137 pCi 76.6 74.8 1.02 A Co-58 pCi 76.2 71.9 1.06 A Mn-54 pCi 91.4 94.4 0.97 A Fe-59 pCi 78.6 70.3 1.12 A Zn-65 pCi 173 162 1.07 A Co-60 pCi 138 139 0.99 A E11356 Charcoal 1-131 pCi 74.9 75.2 1.00 A E11422 Filter Sr-89 pCi 98.0 96.9 1.01 A Sr-90 pCi 10.0 14.0 0.71 w (1) Cr-51 has the shortest half-life and the weakest gamma energy of the mixed nuclide sample, which produces a large error. Taking into account the error, the lowest value wauld be 119% of the reference value, which wauld be considered acceptable. NCR 15-18 (a) Teledyne Brown Engineering reported result.
(b) 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.
(c) Ratio of Teledyne Brown Engineering to Analytics results.
(d) 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 or 1.20-1.30. N =Not Acceptable, reported result falls outside the ratio limits of< 0. 70 and> 1.30.
70
DOE's MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)
TELEDYNE BROWN ENGINEERING ENVIRONMENTAL SERVICES (PAGE1OF1)
Identification Reported Known Acceptance Month/Year Number Media Nuclide Units Value (a) Value (b) Range Evaluation (c)
March 2015 15-GrF32 Filter Gr-S Sq/sample 0.758 0.75 0.38-1.13 A 15-RdF32 Filter Sr-90 Sq/sample -0.0991 (1) A
. September 2015 15-GrF33 Filter Gr-S Sq/sample 1.340 1.56 0.78- 2.34 A 15-RdF33 Filter Sr-90 Sq/sample 1.5 2.18 1.53 - 2.83 N (2)
(1) False positive test.
(2) Sr-90 ll\laS lost during separation, possible from substance added by MAPEP. NCR 15-21 (a) Teledyne Brown Engineering reported result.
(b) 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.
(c) DOE/MAPEP evaluation: A=acceptable, W=acceptable with 11Varning, N=not acceptable.
71
ERA ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING ENVIRONMENTAL SERVICES (PAGE1 OF1)
Identification Reported Known Acceptance Month/Year Number Media Nuclide Units Value (a) Value (b} Limits Evaluation (c)
May 2015 RAD-101 Water Sr-89 pCi/L 45.2 63.2 51.1 - 71.2 N (1)
Sr-90 pCi/L 28.0 41.9 30.8 - 48.1 N (1)
Ba-133 pCi/L 80.6 82.5 63.9- 90.8 A Cs-134 pCi/L 71.7 75.7 61.8 - 83.3 A Cs-137 pCi/L 187 189 170-210. A Co-60 pCi/L 85.7 84.5 76.0- 95.3 A Zn-65 pCi/L 197 203 183 - 238 A Gr-B pCi/L 28.8 32.9 21.3 - 40.6 A 1-131 pCi/L 23.5 23.8 19.7 - 28.3 A H-3 pCi/L 3145 3280 2770- 3620 A November 2015 RAD-103 Water Sr-89 pCi/L 40.9 35.7 26.7-42.5 A Sr-90 pCi/L 29.3 31.1 22.7 - 36.1 A Ba-133 pCi/L 31.5 32.5 25.9- 36.7 A Cs-134 pCi/L 59.65 62.3 50.6 - 68.5 A Cs-137 pCi/L 156 157 141 -175 A Co-60 pCi/L 70.6 71.1 64.0-80.7 A Zn-65 pCi/L 145 126 113 -149 A I I Gr-B pCi/L 42.0 36.6 24.1 - 44.2 A 1-131 pCi/L 24.8 26.3 21.9- 31.0 A H-3 pCi/L 21100 21300 18700 - 23400 A (1) Yield on the high side of acceptance range indicates possibility of calcium interference. NCR 15-09 (a) Teledyne Brown Engineering reported result.
(b) 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.
(c) ERA evaluation: A=acceptable. Reported result falls within the Warning Limits. NA=not acceptable. Reported result falls outside of the Control Limits. CE=check for Error. Reported result falls within the Control Limits and outside of the Warning Limit.
72
APPENDIX C: ERRATA/CORRECTIONS TO PREVIOUS REPORTS 73
The 2013 Annual Radiological Environmental Operating Report was submitted with iodine-131 in air sample data omitted for the sample period Febniaiy 05 through 12 for all eight sampling stations. The following pages contain the revised analysis data table for iodine-131 in air for 2013.
74
TABLE 3-4: IODINE-131 CONCENTRATION IN FILTERED AIR Surry Power Station, Surry County, Vrrginia-2013 1.0E-3 pCi/m3 +/- 2 Sigma Page I of2 COLLECTION SAMPLING LOCATIONS DATE SS HIR BC ALL CP BASF FE NN-C January 08 14.0 +/- 25.2 13.9 +/-.25.0 14.2 +/- 25.6 13.5 +/- 24.3 -6.29 +/- 24.6 -6.12 +/- 2.39 -6.32 +/- 24.7 -6.30 +/- 24.6 January 15 3.16 +/- 22.2 3.14+/-22.1 3.16 +/- 22.2 3.08 +/- 21.7 -6.16 +/- 24.3 -6.00 +/- 23.7 -6.16 +/- 24.3 -6.19 +/- 24.5 January 22 5.59 +/- 17.0 5.45 +/- 16.6 5.55 +/- 16.9 5.43 +/- 16.5 12.6 +/- 16.9 12.2 +/- 16.3 12.5 +/- 16.6 12.5 +/- 16.7 January 29 -4.76 +/- 16.9 -4.62 +/- 16.4 -4.72 +/- 16.7 -4.63 +/- 16.4 3.56 +/- 19.9 2.71 +/- 15.1 2.72 +/- 15.2 2.80 +/- 15.6 February 05 2.62 +/- 19.1 2.55 +/- 18.7 2.64 +/- 19.3 2.54 +/- 18.6 -10.3 +/- 21.2 -7.94 +/- 16.3 -8.04 +/- 16.5 -8.16 +/- 16.8 February 12 -6.39 +/- 10.9 -6.23 +/- 10.7 -6.38 +/- 10.9 -6.22 +/- 10.7 -0.14 +/- 17.1 -0.14 +/- 16.8 -0.14 +/- 16.9 -0.14+/-17.1 February 19 -14.6 +/- 13.9 -14.4 +/- 13.6 -14.7 +/- 13.9 -14.3 +/- 13.6 -7.30 +/- 15.1 -7.10 +/- 14.7 -7.24 +/- 15.0 -7.39 +/- 15.3 February 26 6.77 +/- 18.1 6.65 +/- 17.7 6.82 +/- 18.2 6.64 +/- 17.7 -2.83 +/- 16.7 -2.76 +/- 16.2 -2.80 +/- 16.5 -2.85 +/- 16.8 March 05 -13.6 +/- 21.3 -13.3 +/- 20.8 -13.6 +/- 21.3 -13.3 +/- 20.7 7.00 +/- 13.3 6.87 +/- 13.1 6.94 +/- 13.2 7.09 +/- 13.5 March 12 0.55 +/- 10.0 0.54 +/- 9.80 0.55 +/- 10.0 0.54 +/- 9.76 7.68 +/- 22.8 7.57 +/- 22.5 7.69 +/- 22.9 7.80 +/- 23.2 March 18 -1.09+/-15.1 -1.07 +/- 14.8 -1.09 +/- 15.1 -1.06 +/- 14.7 6.24 +/- 17.9 6.14 +/- 17.6 6.22 +/- 17.8 6.33 +/- 18.1 March 26 -6.94 +/- 11.3 -6.81 +/- 11.2 -6.96+/-11.3 -6.78 +/- 11.0 9.48 +/- 12.9 9.39 +/- 12.7 9.45 +/- 12.8 9.60 +/- 13.0 April 02 -4.38 +/- 17.1 -4.30 +/- 16.7 -4.38 +/- 17.1 -4.25 +/- 16.6 -9.71 +/- 21.1 -9.55 +/- 20.8 -9.72 +/- 21.1 -9.83 +/- 21.4 April 09 -11.0 +/- 22.3 -10.8 +/- 21.9 -10.9 +/- 22.1 -10.7 +/- 21.7 9.82 +/- 22.3 9.67 +/- 23.0 9.81 +/- 23.3 9.79 +/- 23.2 April 16 -4.35 +/- 12.5 -4.32 +/- 12.4 -4.31 +/- 12.4 -4.24 +/- 12.2 0.84 +/- 13.2 0.85 +/- 13.3 0.85 +/- 13.3 0.87 +/- 13.7 April 23 -8.47 +/- 20.9 -8.35 +/-.20.6 -8.46 +/- 20.9 -8.26 +/- 20.4 14.3 +/- 17.9 14.1 +/- 17.7 14.3 +/- 17.9 14.5 +/- 18.2 April 30 -4.19 +/- 18.6 -4.14 +/- 18.3 -4.20 +/- 18.6 -4.08 +/- 18.1 -6.30 +/- 16.8 -6.19 +/- 16.5 -6.28 +/- 16.8 -6.42 +/- 17.1 May 07 9.96 +/- 10.4 9.78 +/- 10.2 9.98 +/- 10.4 9.68 +/- 10.1 -0.27 +/- 10.5 -0.27 +/- 10.5 -0.28 +/- 10.7 -0.28 +/- 10.7 May 14 -8.22 +/- 12.2 -8.07 +/- 12.0 -8.28 +/- 12.3 -8.05 +/- 12.0 -6.91 +/- 15.2 -6.79 +/- 14.9 -6.90 +/- 15.2 -7.40 +/- 15.5 May 21 -6.95 +/- 22.9 -6.82 +/- 22.5 -6.92 +/- 22.9 -6.77 +/- 22.3 4.54 +/- 21.8 4.50 +/- 21.6 4.55 +/- 21.9 4.56 +/- 21.9 May 28 -10.7 +/- 22.2 -10.5 +/- 21.9 -10.7 +/- 22.2 -10.5 +/- 21.9 16.0 +/- 21.0 16.0 +/- 21.0 16.1 +/- 21.2 16.3 +/- 21.4 June 05 -9.68 +/- 15.9 -9.45 +/- 15.5 -9.62 +/- 15.8 -9.52 +/- 15.6 -1.98 +/- 11.7 -1.95 +/- 11.5 -1.98 +/- 11.7 -1.97 +/- 11.7 June 10 10.2 +/- 24.2 10.5 +/- 23.7 -8.00 +/- 28.9 10.4 +/- 23.5 -7.03 +/- 24.0 -6.76 +/- 23.1 -6.97 +/- 23.8 -6.96 +/- 23.8 June 17 -0.08 +/- 12.6 -0.08 +/- 12.4 -0.08 +/- 12.0 -0.08 +/- 11.6 5.10 +/- 15.5 4.18 +/- 12.7 4.31 +/- 13.1 4.23 +/- 12.9 June 24 -7.35 +/- 15.3 -7.19 +/- 14.9 -7.36 +/- 15.3 -7.16 +/- 14.9 6.09 +/- 13.9 5.94 +/- 13.5 6.09 +/- 13.9 6.09 +/- 13.9 I
75
TABLE 3-4: IODINE-131 CONCENTRATION IN FILTERED AIR Suny Power Station, Suny County, Virginia -2013 1.0E-3 pCi/m3 +/- 2 Sigma Page 2 of2 COLLECTION SAMPLING LOCATIONS DATE SS HIR BC ALL CP BASF FE NN-C July 02 11.1+/-23.7 11.4 +/- 24.3 11.6 +/- 24.8 11.3 +/- 24.2 4.60 +/- 29.6 4.48 +/- 28.8 4.56 +/- 29.2 4.58 +/- 29.5 July 09 -8.65 +/- 25.8 -8.27 +/- 24.7 -8.42 +/- 25.1 -8.21 +/- 24.5 -0.50 +/- 23.9 -0.50 +/- 23.6 -0.50 +/- 23.9 -0.50 +/- 24.0 July 15 -1.57 +/- 14.4 -1.55 +/-'14.3 -1.57 +/- 14.4 -1:53 +/- 14.1 -9.03 +/- 14.1 -8.93 +/- 14.0 -9.06 +/- 14.1 -8.92 +/- 13.9 July 23 6.48 +/- 13.8 6.32 +/- 13.5 6.39 +/- 13.6 6.23 +/- 13.3 -2.91 +/- 14.5 -2.90 +/- 14.4 -2.93 +/- 14.6 -2.90 +/- 14.4 July 30 -9.09 +/- 32.1 -8.86 +/- 31.3 -8.99 +/- 31.8 -8.83 +/- 31.2 10.7 +/- 22.0 10.6 +/- 21.8 10.7 +/- 22.0 10.6 +/- 21.8 August 06 -14.8 +/- 24.1 -14.5 +/- 23.6 -14.7 +/- 23.9 -14.5 +/- 23.6 15.4 +/- 20.3 15.3 +/- 20.1 15.4 +/- 20.2 15.1 +/- 19.8 August 13 -15.4 +/- 16.6 -15.1 +/- 16.3 -15.8 +/- 17.0 -15.4 +/- 16.6 2.44 +/- 18.2 2.44 +/- 18.2 2.44 +/- 18.2 2.49 +/- 18.5 August 20 -12.7 +/- 16.0 -12.4 +/- 15.6 -12.5 +/- 15.7 -12.3 +/- 15.5 -8.13 +/- 18.4 -8.08 +/- 18.3 -8.14 +/- 18.5 -8.06 +/- 18.3 August 26 -2.12 +/- 18.5 -2.05 +/- 17.9 -2.09 +/- 18.2 -2.04 +/- 17.8 8.35 +/- 17.7 8.30 +/- 17.6 8.36 +/- 17.7 8.23 +/- 17.5 September 03 17.5 +/- 22.9 17 +/- 22.3 17.3 +/- 22.7 16.9 +/- 22.1 -4.87 +/- 20.2 -4.83 +/- 20.1 -4.86 +/- 20.2 -4.77 +/- 19.8 September 10 19.4 +/- 25.1 18.9 +/- 24.5 19.2 +/- 24.8 18.9 +/- 24.4 31.5 +/- 30.4 31.3 +/- 30.2 31.5 +/- 30.4 30.9 +/- 29.8 September 17 -0.75 +/- 16.8 -0.73 +/- 16.4 -0.74 +/- 16.6 -0.72 +/- 16.3 1.40 +/- 15.9 1.37 +/- 15.6 1.39 +/- 15.8 1.37 +/- 15.5 September 24 6.57 +/- 22.7 6.37 +/- 22.1 6.47 +/- 22.4 6.35 +/- 22.0 -20.5 +/- 22.2 -20.1 +/- 21.8 -20.4 +/- 22.2 -20.0 +/- 21.8 October 01 14.9 +/- 28.3 14.4 +/- 27.4 14.6 +/- 27.9 14.3 +/- 27.3 -8.57 +/- 29.0 -8.46 +/- 28.6 -8.56 +/- 28.9 -8.28 +/- 28.0 October 08 24.2 +/- 24.2 23.5 +/- 23.4 23.9 +/- 23.9 23.7 +/- 23.6 -5.99 +/- 24.3 -5.90 +/- 23.9 -5.94 +/- 24.0 -5.84 +/- 23.6 October 15 -2.11+/-11.2 -2.05 +/- 10.9 -2.01 +/- 10.7 -1.99 +/- 10.6 -5.18 +/- 10.7 -5.13 +/- 10.6 -5.21 +/- 10.8 -5.00 +/- 10.3 October 22 22.4 +/- 20.4 21.8 +/-*19.8 22.2 +/- 20.2 22.0 +/- 20.0 12.5 +/- 18.0 12.3 +/- 17.8 12.4 +/- 18.0 12.4 +/- 17.9 October 29 -18.4 +/- 39.6 -18 +/- 38.6 -18.2 +/- 39.2 -18.2 +/- 39.0 -0.85 +/- 36.3 -0.84 +/- 35.7 -0.85 +/- 36.3 -0.84 +/- 35.6 November05 -22.8 +/- 35.1 -22.4 +/- 34.5 -22.9 +/- 35.3 -22.5 +/- 34.6 -3.72 +/- 40.~ -3.69 +/- 39.9 -3.72 +/- 40.2 -3.57 +/- 38.6 November 12 1.30 +/- 20.4 1.28 +/- 20.0. 1.30 +/- 20.4 1.28 +/- 20.2 0.73 +/- 20.1 0.72 +/- 19.9 0.72 +/- 19.9 0.72 +/- 19.8 November 19 -3.68 +/- 18.1 -3.57 +/- 17.5 -3.63 +/- 17.8 -3.62 +/- 17.8 -5.05 +/- 21.8 -5.04 +/- 21.7 -5.08 +/- 21.9 -4.92 +/- 21.2 November26 -5.84 +/- 39.0 -5.67 +/- 37.8 -5.77 +/- 38.5 -5.70 +/- 38.0 -0.67 +/- 41.0 -0.66 +/- 40.8 -0.67 +/- 41.1 -0.65 +/- 40.3 December03 4.55 +/- 32.9 4.43 +/- 32.0 4.49 +/- 32.4 4.42 +/- 31.9 -7.08 +/- 33.4 -7.01 +/- 33.0 -7.08 +/- 33.3 -6.99 +/- 32.9 December 10 -14~0 +/- 25.7 -13.6 +/- 24.9 -13.8 +/- 25.5 -13.7 +/- 25.2 -16.1 +/- 20.0 -15.9 +/- 19.8 -16.2 +/- 20.0 -15.7 +/- 19.5 December 16 -28.4 +/- 29.8 -27.6 +/- 29.0 -28.1 +/- 29.5 -27.6 +/- 29.0 -19.7 +/- 28.8 -19.4 +/- 28.4 -19.6 +/- 28.7 -19.3 +/- 28.2 December24 17.0 +/- 30.4 16.6 +/- 29.7 17.5 +/- 31.3 17.3 +/- 30.8 -10.3 +/- 28.5 -10.2 +/- 28.1 -10.3 +/- 28.4 -10.1 +/- 27.9 December31 -30.8 +/- 43.0 -30.2 +/- 42.3 -30.2 +/- 42.1 -29.8 +/- 41.6 -25.9 +/- 33.4 -25.6 +/- 33.0 -25.8 +/- 33.3 -25.3 +/- 32.7 76