ML13135A642

Independent Spent Fuel Storage Facility - 2012 Annual Radiological Environmental Operating Report

ML13135A642
Person / Time
Site:	San Onofre
Issue date:	05/14/2013
From:	St.Onge R Southern California Edison Co
To:	Document Control Desk, Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation, NRC/FSME
References
Download: ML13135A642 (120)

Text

i¸ I SO LAHI WN CAL, LI O WNIA Richard St. Onge EDISON Di)rcctor \ucIcar Renflatonkv Atftuir and An l_/)/S0 1%/1:¢\A1I1 II ( Tmp May 14, 2013 10 CFR 50.36(a)

ATTN: Document Control Desk U. S. Nuclear Regulatory Commission Washington, D.C. 20555-0001

Subject:

Docket Nos. 50-206, 50-361, 50-362 and 72-41 2012 Annual Radiological Environmental Operating Report San Onofre Nuclear Generating Station (SONGS) Units 1, 2 and 3 and Independent Spent Fuel Storage Facility

Dear Sir or Madam:

As required by Technical Specification (TS) Section D6.9.1.3 of San Onofre Nuclear Generating Station (SONGS) Unit 1 Facility Operating License DPR-13, and TS Section 5.7.1.2 of Facility Operating Licenses NPF-10 and NPF-15 for SONGS Units 2 and 3, respectively, this letter transmits the 2012 Annual Radiological Environmental Operating Report (AREOR) for SONGS Units 1, 2 and 3.

The AREOR covers the operation of SONGS during January 1, 2012 through December 31, 2012 and includes summaries, interpretations, and analyses of trends of the results of the Radiological Environmental Monitoring Program.

In addition, the AREOR includes the results for direct radiation monitoring near the Independent Spent Fuel Storage Installation.

This letter does not contain any commitments.

If you require any additional information, please contact, Licensing Lead, Mr. Mark Morgan, at (949) 368-6745.

Sincerely, Enclosure as Stated 6

IP.O. Box 128 San Clenunte. CA ýl2674 5

Document Control Desk May 14, 2013 cc: A. T. Howell Ill, NRC Regional Administrator, Region IV R. Hall, NRC Project Manager, SONGS Units 2 and 3 B. Benney, NRC Project Manager, SONGS Units 2 and 3 J. C. Shepherd, NRC Project Manager, SONGS Unit 1 J. E. Whitten, NRC Region IV, Nuclear Material Safety Branch Chief G. G. Warnick, NRC Senior Resident Inspector, SONGS Units 2 and 3 S. Y. Hsu, California Department of Public Health W. C. Allen, NRC Project Manager, SONGS ISFSI

2012 Radiological Environmental Operating Report San Onofre Nuclear Generating Station Southern California Edison An Edison InternationalCompany Docket Nos. 50-206, 50-36 1, 50-362 License Nos. DPR-13, NPF-10, NPF-15 May 2013 IEDISON

2012 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT San Onofre Nuclear Generating Station UNITS 1, 2, & 3 Southern California Edison An Edison InternationalCompany Prepared by: C. B. Stone Approved by: B. D. Metz Approved by: S. M. Hoque Approved by: S. C. Vaughan Approved by: A. S. Marinez v

TABLE OF CONTENTS Page Table of Contents ......................................................................................................................................... i EXECUTIVE SUM M ARY / INTRODUCTION ................................................................................... I O bjectiv es ............................................................................................ ..........................................

Sam ple Collection .............................................................................................................................. 2 Regulatory Lim its, Guidance, and Requirem ents ............................................................................ 3 Data Managem ent .................................................................................................................................. 4 Detection Lim it Term inology ......................................................................................................... 5 C o n clu sio n .......................................................................................................................................... 5 References .......................................................................................................................................... 6 APPENDIX A - Sample Type and Sampling Location .......................................................................... 7 Table A-1 REM P Sample Locations ............................................................................................. 8 Table A-2 Sector and Direction Designation for REMP Sample Location Map ....................... 12 Figure 5-1 San Onofre REM P - One-M ile Radius ...................................................................... 13 Figure 5-2 San Onofre REM P - Two-M ile Radius ................................................................... 14 Figure 5-3 San Onofre REM P - Five-M ile Radius ................................................................... 15 Figure 5-4 San Onofre REM P - 30 M ile North .......................................................................... 16 Figure 5-5 San Onofre REM P - 45 M ile South .......................................................................... 17 APPENDIX B - Summary, Results, and Discussions of 2012 Environmental Data ............................. 18 Sum m ary ........................................................................................................................................ 19 Results and Discussions of 2012 Environm ental Data ................................................................... 20 Table B-1 2012 TLD Data .............................................................................................................. 22 Figure 5-6 2012 Kelp Sam ple Locations ................................................................................... 29 Table B-2 Summary of Nuclear Power Plant Related Gamma Isotopic Analysis Confirmed above M D C .................................................................................................................................. 30 Table B-3 REM P Sample Analysis Summ ary for 2012 ............................................................ 33 Statistical Summ ary of Remp Data for 2012 ................................................................................... 34 Table 1A Quarterly Gamm a exposure (millirem ) ................................................................... 35

Table 2 Weekly Airborne Particulates - Gross Beta Activity ................................................. 356 Table 3 Weekly Radioiodine 1-131 Activity ........................................................................ 37 Table 4A Quarterly Composite Airborne Particulates Gamma ............................................... 38 Table 5 Monthly Ocean Water Gamma Spectral Analysis ................................................... 39 Table 7 Quarterly Composite Ocean Water Tritium Activity ................................................. 430 Table 9A Monthly Drinking Water Analysis ............................................................................. 431 Table 10 Semi-Annual Shoreline Sediment Gamma Spectral Analysis ................................... 442 Table 1OA D eer M eat A nalysis ................................................................................................. 43 Table 11 Semi-Annual Ocean Bottom Sediment Gamma Spectral Analysis .......................... 44 Table 12A Semi-Annual Non-Migratory Marine Animals Analysis - Flesh ............................. 45 Table 13A Semi-Annual Local Crops Gamma Spectral Analysis ............................................. 50 Table 14 A nnual Soil Analysis ............................................................................................... 51 Table 15 Semi-Annual Kelp Analysis .................................................................................... 52 APPENDIX C - Summary of Quality Control Programs .................................................................... 53 Interlaboratory Cross-Check Program ............................................................................................. 54 Quarterly Duplicate T L D s ................................................................................................................... 55 Annual Duplicate T L D s ....................................................................................................................... 55 Com parison of TLD to PIC D ata .................................................................................................... 55 Calibration of Air Sampler Volume Meters .................................................................................... 55 Table C- 1 Analytics Cross-Check Program Summary ............................................................. 56 APPENDIX D - Comparison of Operational to Preoperational Data and Analysis of Trends ............. 68 Comparison of Operational to Preoperational Data and Analysis of Trends .................................. 69 Table D - IA Shoreline Sediments Concentration (pCi/g, wet weight) PreOperational and Operational Data SO N G S U nits 2/3 ........................................................................................................................ 73 Table D-1B Ocean Bottom Sediments Concentration (pCi/g, wet weight) PreOperational and Operational Data SONGS Units 2/3 ....................................................................................... 73 Table D-2 Marine Species Concentrations (pCi/g, wet weight) PreOperational and Operational D ata SO N G S Units 2/3 ............................................................................................... 75 Table D-3 Soil PreOperational and Operational Data (pCi/g, wet weight) SONGS Units 2/3 ....... 80

APPENDIX E - Deviations from ODCM Sampling Requirements in 2012 ........................................ 81 Deviations from ODCM Sampling Requirements in 2012 ............................................................. 82 Part I T errestrial Sam pling .................................................................................................. 82 Part II M arine Sam pling ........................................................................................................ 83 APPENDIX F - Land Use Census ........................................................................................................ 84 In tro d u ctio n ........................................................................................................................................ 85 D efi nitions of U ses .............................................................................................................................. 85 The Study S cope .................................................................................................................................. 86 M ethodolog y ........................................................................................................................................ 86 Table F-1 2012 SONGS Units 2/3 LUC Five-Mile Radius Summary Sheet ............................. 88 Table F-2 2012 SONGS Units 2/3 LUC Five-Mile Radius Summary Sheet ............................. 89 Table F-3 2012 SONGS Units 2/3 LUC Five-Mile Radius Summary Sheet ............................. 90 APPENDIX G - Figures for 2012 ........................................................................................................ 91 Figure 1 Potential Radiation Exposure Pathways Leading to Man ........................................ 92 Figure 2A Direct Radiation Monitoring 1981 to 1999 ............................................................... 93 Figure 2B Direct Radiation Monitoring 1998 to 2012 ............................................................... 94 Figure 3A Monthly Average Airborne Particulates Gross Beta Activity Preoperational and Operational Data for SONGS Unit 2/3 ............................................................................................ 95 Figure 3B Monthly Average Airborne Particulates Gross Beta Activity SONGS Units 2 and 3 from Jan 1988 to D ec 1997 .................................................................................................................. 96 Figure 3C Monthly Average Airborne Particulates Gross Beta Activity SONGS Units 2 and 3 from Jan 1998 to D ec 20 12 .................................................................................................................. 97 Figure 3D Weekly Airborne Particulate Gross Beta Activity Jan to Dec 2012 ......................... 98 Figure 4 1-131 in Aquatic Kelp .............................................................................................. 99 APPENDIX H - Errata to the 2011 AREOR .......................................................................................... 100 APPENDIX I - REMP TLD's Co-located with DHS TLDs During 2012 .............................................. 101 APPENDIX J - ISFSI TLD DATA ......................................................................................................... 103 Table J-1 ISFSI T LD D ata ........................................................................................................... 106 Figure 6-1 ISFSI TLDs and REMP TLDs within the EAB ........................................................... 107

Figure 6-2 ISFSI TLDs and Selected REMP TLDs near the ISFSI .............................................. 108 Figure 6-A ISFSI and Selected REMP TLD Quarterly Gamma Exposure .................................... 109 APPENDIX K O ffsite Ground W ater Sam pling ................................................................................. 110 Figure 7-1 D rinking W ater W ells .................................................................................................. 112

Executive Summary The data from the San Onofre Nuclear Generating Station (SONGS) Radiological Environmental Monitoring Program (REMP) indicate that SONGS had a negligible radiological environmental impact during 2012. We further conclude that dose to a member of the general public attributable to all SONGS related radiological activities is below regulatory limits.

Preparation of the 2012 Annual Radiological Environmental Operating Report (AREOR) used the data reduction protocol described in NUREG/CR-4007. A meaningful analysis of data at, near, or below the detection limit must necessarily involve a consideration of the degrees of uncertainty associated with the data. The data have been summarized in the Statistical Summary of REMP Data found in Appendix B. The plant related radionuclides, including cesium-137 (Cs-137) in soil, as well as iodine- 131 (1-13 1) in kelp, detected above the a posterioriminimum detectable concentration (MDC) are attributable to fallout from nuclear weapons testing (Cs- 137) and medical administrations of radionuclides (1-131). These isotopes have been detected at indicator as well as control locations in past years. The naturally occurring radionuclides, including beryllium-7 (Be-7), potassium-40 (K-40), thorium-228 (Th-228), and thorium-230 (Th-230) were detected in both control and indicator locations at similar concentrations and are not related to the operation of SONGS. Refer to Appendix B for a more detailed discussion.

INTRODUCTION SONGS consists of two pressurized water nuclear reactors housed in separate containment buildings. Unit 1 attained initial to criticality in June 1967, and was permanently retired from service in November 1992. The Unit 1 aboveground structures have been removed. Unit 2 attained initial criticality in July 1982 and Unit 3 in August 1983. Unit 2 was shut down for a planned refueling outage on January 9, 2012 and did not operate for the remainder of 2012 and Unit 3 was taken off-line after a steam generator tube leak on January 31, 2012 and not returned to service.

The purpose of the REMP is to quantify ambient radiation levels in the environs of SONGS, and to identify and quantify concentrations of radioactivity in various environmental media in the vicinity of SONGS that have a potential radiation exposure pathway to a member of the general public. Thermoluminescent dosimeters (TLDs) are used to measure direct radiation levels.

Sampled environmental media include soil, shoreline sediment (beach sand), air (particulate and iodine), local crops, non-migratory marine species, deer meat, kelp, drinking water, ocean water, and ocean bottom sediments. Each of the samples was analyzed for both naturally occurring and SONGS-related radionuclides.

The REMP is conducted in accordance with Section 5.0 of the SONGS ODCM (Offsite Dose Calculation Manual).

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To conform with 10 CFR Part 50, Appendix I, Section IV B.2, data on measurable levels of radiation and radioactive materials in the environment have been compared against predicted (calculated) values to evaluate the relationship between quantities of radioactive material released in effluents and resultant radiation doses to individuals from principal pathways of exposure. Refer to Appendix B for a correlation of effluent to environmental concentrations.

A land use census was performed in 2012 to ensure that changes in the use of areas at and beyond the site boundary are identified and that modifications to the monitoring program are made if required by the results of this census. Appendix F of the report identifies changes to the census and the resultant dose increase, if any, to individuals from principal pathways of exposures in conformance with 10CFR Part 50, Appendix I, Section IV. B.3.

OBJECTIVES

1. To verify that the operation of SONGS Units 2 and 3 has a negligible effect on the health and safety of the public and the environment.

2. To detect any significant increase in the concentration of radionuclides in critical pathways.

3. To detect any significant change in ambient gamma radiation levels.

4. To fulfill the radiological environmental monitoring requirements of the ODCM.

SAMPLE COLLECTION Samples of various environmental media were obtained to meet the stated objectives. The selection of sample types was based on established critical pathways for the transfer of radionuclides through the environment to individuals, and the evaluation of data during the operational phase. Sampling locations were selected with consideration given to site meteorology, local demography, and land uses. Refer to Appendix A for a complete list of REMP sample locations as described in Table 5-4 of the ODCM.

Sampling locations were divided into two classes, indicator and control. Control stations are at locations considered to be unaffected by SONGS operations. All others are considered indicator locations and may be potentially affected by SONGS operations.

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REGULATORY LIMITS, GUIDANCE, AND REQUIREMENTS

• 10CFR50 The Code of Federal Regulations Title 10, Part 50, Appendix I.

• 40CFRI90 The Environmental Protection Agency (EPA) has established environmental radiation protection standards for nuclear power plants in 40CFR190. These limits are applicable to the sum of both liquid and gaseous effluents and direct radiation. As discussed in the 2012 SONGS Annual Radioactive Effluent Release Report, the dose to a member of the public as a result of the operation of SONGS are a small fraction of the dose standard established by the EPA.

• IOCFR20 10CFR20, Appendix B, Table II, "Effluent Concentrations" and Appendix C, "Concentration for Release to Sewerage" Guidance:

• Regulatory Guide 4.1 Programs for Monitoring Radioactivity in the Environs of Nuclear Power Plants, 1975

• Regulatory Guide 4.2 Preparation of Environmental Reports for Nuclear Power Stations, 1976

• Regulatory Guide 4.8 Environmental Technical Specifications for Nuclear Power Plants, 1975

• Regulatory Guide 4.13 Performance, Testing, and Procedural Specification for Thermoluminescent Dosimetry:

Environmental Applications, 1977

• NUREG-0133 Preparation of Radiological Effluent Technical Specifications for Nuclear Power Plants

• Regulatory Guide 1.109 Calculation of Annual Doses to Man from Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10CFR Part 50, Appendix I, 1977 3

• NUREG-1301 Offsite Dose Calculations Manual Guidance: Standard Radiological Effluent Controls for Pressurized Water Reactors, Generic Letter 89-01, Supplement No. 1, 1991 ANSI N545 (TLDs)

American National Standard Performance, Testing, And Procedural Specifications for Thermoluminesence Dosimetry (Environmental Application), 1975 Regulatory Guide 4.15 Quality Assurance for Radiological Monitoring Programs (Normal Operations) -

Effluent Streams and the Environment, 1979

• NUREG 1576 MARLAP Multi-agency Radiological Laboratory Analytical Protocols NUREG/CR-4007 Lower Limit of Detection: Definition and Elaboration of a Proposed Position for Radiological Effluent and Environmental Measurements, 1984 DATA MANAGEMENT The tabulated means, ranges and standard deviations presented in Appendix B were calculated following the standard format specified in Regulatory Guide 4.8, the Radiological Assessment Branch Technical Position, Revision 1, 1979, and in accordance with the protocol outlined in NUREG/CR-4007. A custom data management software package was used to perform the statistical analysis and tabulation of the data.

The REMP data are reviewed for accuracy and comparison against NRC reporting levels, and then entered into the REMP database. One of the REMP menus flags measurements exceeding the administrative levels (10% of the NRC reporting levels) established by SCE (Southern California Edison). The a posterioriMDC is compared to the maximum value for the a priori Lower Limit of Detection (LLD) specified in the ODCM. This ensures that regulatory limits for the maximum LLD are met.

The impact of SONGS on the surrounding environment was assessed through a series of analyses. These analyses included: data reduction, comparisons of indicator to control locations, and summary (Appendix B); comparison of operational to preoperational environmental data (Appendix D); summary of deviations from sampling requirements and corrective actions taken (Appendix E); and the results of the 2012 Land Use Census (Appendix F).

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All Radiological Environmental Monitoring activities for San Onofre are assessed in accordance with Quality Assurance requirements as defined in Regulatory Guide 4.15. The Contracted Environmental Analysis Laboratory (CEAL) participated in an interlaboratory comparison program in partial fulfillment of the quality assurance requirements for environmental monitoring. The CEAL participated in cross check programs which meet the intent of Reg.

Guide 4.15. Refer to Appendix C.

DETECTION LIMIT TERMINOLOGY This report utilizes three distinct terms to describe the concept of "lower limit of detection" at various detection confidence levels. The terms are briefly defined below. For a more thorough discussion, the reader should refer to NUREG/CR-4007.

Critical level - Defined as 1.64 sigma. For a sufficiently large database of [isotopically analyzed] sample results, with the "true" activity being equal to zero, approximately 5% of the results are expected to be above the critical level.

Lower Limit of Detection (LLD) - The LLD is the a priori (before the fact) lower limit of detection. This value is calculated for each isotope and every matrix based on typical or expected values of decay time, sample size, counter efficiency, etc. These values are listed in the ODCM and represent the maximum permissible value for the "lower limit of detection" for specified sample media.

Minimum Detectable Concentration (MDC) - The MDC is the a posteriori(after the fact) lower limit of detection achieved based on actual decay time, measured sample size, counting efficiency as determined by recent calibration, etc. The MDC is compared to the LLD to verify that the measurement met the ODCM requirements for the maximum value of the LLD for the listed analytes. Values above the MDC are presumed to represent "detected" activity at the 95%

detection confidence level. Refer to NUREG 1576.

The 2012 SONGS REMP data required by the ODCM have been summarized in the Statistical Summary of REMP Data found in Appendix B.

CONCLUSION Levels of radioactivity in environmental media are a function of several factors including: site release rates; meteorology; number, location, size and date of nuclear weapons tests; seasonal variability of fallout; soil conditions; local terrain and variability in the natural environment.

Radiological environmental data collected throughout 2012 have been evaluated to determine the impact, if any, of San Onofre operations on the surrounding environment. To accomplish this, several methods of evaluation were employed, namely:

1. Compilation and verification of all data, as well as a determination of those data considered to be significantly greater than background levels.

2. Correlation of effluent concentrations to concentrations in the environment. Refer to Appendix B.

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3. Examination of time-dependent variations of pertinent radioisotopes in selected environmental media throughout the year at both indicator and control locations.

4. Comparison of radioactivity in various media in 2012 against the levels observed in preoperational years.

5. Historical trending of radionuclides in various media during operational years.

In comparing these findings to the conservatively-defined limits of the facility operating licenses, it is concluded that the radiological environmental impact of the operation of SONGS through 2012 has been negligible, and the resulting dose to a member of the general public is negligible.

REFERENCES

1. 10CFR50, Appendix I

2. Land Use Census for SONGS Units 1,2 and 3 Radiological Environmental Monitoring Program, October, 2012.

3. SONGS Offsite Dose Calculation Manual (ODCM) Revision 6, Section 5.0, 2010.

4. SONGS Radiological Monitoring (RM) Procedures: S0123-RM-1 (SO123-IX-1.10).

5. L. Currie. 1968 "Limits for the Qualitative Detection and Quantitative Determination -

Application to Radiochemistry," Analytical Chemistry, vol. 40 pp. 586-593 6

APPENDIX A SAMPLE TYPE AND SAMPLING LOCATION 7

TABLE A- I RADIOLOGICAL ENVIRONMENTAL MONITORING SAMPLE LOCATIONS TYPE OF SAMPLE AND SAMPLING LOCATION DISTANCE* DIRECTION*

(Omitted sample numbers are due to program modifications) (miles) (Sector)

DirectRadiation 1 City of San Clemente (Former SDG&E Offices) 5.7 NW 2 Camp San Mateo - (MCB, Camp Pendleton) 3.6 N 3 Camp San Onofre - (MCB, Camp Pendleton) 2.8 NE 4 Camp Homo - (MCB, Camp Pendleton)B 4.4 E 6 Old El Camino Real (AKA Old Highway 101) 3.0 ESE 8 Noncommissioned Officers' Beach Club 1.4 NW 10 Bluff(Adjacent to PIC #1) 0.7 WNW 11 Former Visitors' Center 0.4 ** NW 12 South Edge of Switchyard 0.2** E 13 Southeast Site Boundary (Bluff) 0.4** ESE 15 Southwest Site Boundary (Office Building) 0.1 ** SSE 16 East Southeast Site Boundary 0.4** ESE 19 San Clemente Highlands 4.9 NNW 22 Former US Coast Guard Station - San Mateo Point 2.7 WNW 23 SDG&E Service Center Yard 8.1 NW 31 Aurora Park - Mission Viejo 18.6 NNW 33 Camp Talega - (MCB, Camp Pendleton) 5.9 N 34 San Onofre School - (MCB, Camp Pendleton) 1.9 NW 35 Range 312 - (MCB, Camp Pendleton) 4.8 NNE 36 Range 208C - (MCB, Camp Pendleton) 4.1 NE 38 San Onofre State Beach Park 3.4 SE 40 SCE Training Center - Mesa (Adjacent to PIC #3) 0.7 NNW 41 Old Route 101 - East 0.3** E 44 Fallbrook Fire Station 17.7 E 46 San Onofre State Beach Park 1.0 SE 47 Camp Las Flores - (MCB, Camp Pendleton) 8.6 SE Distance (miles) and Direction (sector) are measured relative to Units 2/3 midpoint as described in the ODCM Rev. 4.

Direction determined from degrees true north.

• • Distances are within the Units 2/3 CAB/EAB (Controlled Area Boundary/Exclusion Area Boundary)

• • • Soil samples are not required by Technical Specifications.

Kelp samples are not required by Technical Specifications.

MCB Marine Corps Base Camp Pendleton PIC Pressurized Ion Chamber 8

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING SAMPLE LOCATIONS TYPE OF SAMPLE AND SAMPLING LOCATION DISTANCE* DIRECTION*

(Omitted sample numbers are due to program modifications) (miles) (Sector)

Direct Radiation (Continued) 49 Camp Chappo - (MCB, Camp Pendleton) 12.9 ESE 50 Oceanside Fire Station (Control) 15.6 SE 53 San Diego County Operations Center 44.2 SE 54 Escondido Fire Station 31.8 ESE 55 San Onofre State Beach (Ul West) 0.2 ** WNW 56 San Onofre State Beach (U1 West) 0.2 ** W 57 San Onofre State Beach (Unit 2) 0.1 ** SW 58 San Onofre State Beach (Unit 3) 0.1** S 59 SONGS Meteorological Tower 0.3 ** WNW 61 Mesa - East Boundary (Adjacent to PIC #4) 0.7 N 62 MCB - Camp Pendleton (Adjacent to PIC #5) 0.7 NNE 63 MCB - Camp Pendleton (Adjacent to PIC #6) 0.6 NE 64 MCB - Camp Pendleton (Adjacent to PIC #7) 0.6 ENE 65 MCB - Camp Pendleton (Adjacent to PIC #8) 0.7 E 66 San Onofre State Beach (Adjacent to PIC #9) 0.6 ESE 67 Former SONGS Evaporation Pond (Adjacent to PIC #2) 0.6 NW 68 Range 210C - (MCB, Camp Pendleton) 4.4 ENE 73 South Yard Facility 0.4** ESE 74 Oceanside City Hall (Backup Control) 15.6 SE 75 Gate 25 MCB 4.6 SE 76 El Camino Real Mobil Station 4.6 NW 77 Area 62 Heavy Lift Pad 4.2 N 78 Homo Canyon (AKA Sheep Valley) 4.4 ESE

• Distance (miles) and Direction (sector) are measured relative to Units 2/3 midpoint as described in the ODCM Rev. 4.

Direction detennined from degrees true north.

• • Distances are within the Units 2/3 CAB/EAB (Controlled Area Boundary/Exclusion Area Boundary)

• • • Soil samples are not required by Technical Specifications.

Kelp samples are not required by Technical Specifications.

MCB Marine Corps Base Camp Pendleton PIC Pressurized Ion Chamber 9

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING SAMPLE LOCA TIONS TYPE OF SAMPLE AND SAMPLING LOCATION DISTANCE* DIRECTION*

(Omitted sample numbers are due to program modifications) (miles) (Sector)

Airborne 1 City of San Clemente (City Hall) 5.1 NW 7 AWS Roof 0.18** NW 9 State Beach Park 0.6 ESE 10 Bluff 0.7 WNW 11 Mesa EOF 0.7 NNW 12 Former SONGS Evaporation Pond 0.6 NW 13 Marine Corp Base (Camp Pendleton East) 0.7 E 16 San Luis Rey Substation (Control) 16.7 SE Soil Samples ***

1 Camp San Onofre 2.8 NE 2 Old Route 101 - (East Southeast) 3.0 ESE 3 Basilone Road / I-5 Freeway Off ramp 2.0 NW 5 Former Visitors Center 0.4** NW 7 Prince of Peace Abbey (Control) 15 SE Ocean Water A Station Discharge Outfall - Unit 1 0.6 SW B Outfall - Unit 2 1.5 SW C Outfall - Unit 3 1.2 SSW D Newport Beach (Control) 30.0 NW 51 Unit 2 Conduit (not listed in the ODCM) 0.1 SW 52 Unit 3 Conduit (not listed in the ODCM) 0.1 SSW Drinking Water 4 Camp Pendleton Drinking Water Reservoir 2.0 NW 5 Oceanside City Hall (Control) 15.6 SE Distance (miles) and Direction (sector) are measured relative to Units 2/3 midpoint as described in the ODCM Rev. 4.

Direction determined from degrees true north.

• • Distances are within the Units 2/3 CAB/EAB (Controlled Area Boundary/Exclusion Area Boundary)

• • • Soil samples are not required by Technical Specifications.

Kelp samples are not required by Technical Specifications.

MCB Marine Corps Base Camp Pendleton PIC Pressurized Ion Chamber 10

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING SAMPLE LOCATIONS TYPE OF SAMPLE AND SAMPLING LOCATION DISTANCE* DIRECTION*

(Omitted sample numbers are due to program modifications) (miles) (Sector)

Shoreline Sediment (Beach Sand) 1 San Onofre State Beach (Southeast) 0.6 SE 2 San Onofre Surfing Beach 0.8 WNW 3 San Onofre State Beach (Southeast) 3.5 SE 4 Newport Beach North End (Control) 29.2 NW Local Crops 2 Oceanside (Control) 15-25 SE to ESE 6 SONGS Garden 0.4 NNW Non-MigratoryMarineA nimals A Unit 1 Outfall 0.9 WSW B Units 2/3 Outfall 1.5 SSW C Laguna Beach (Control) 15to150 WNWtoNW Kelp ****

A San Onofre Kelp Bed 1.5 S B San Mateo Kelp Bed 3.8 WNW C Barn Kelp Bed 6.3 SSE E Salt Creek (Control) 11 to 13 WNW to NW Ocean Bottom Sediments B Unit 1 Outfall 0.8 SSW C Unit 2 Outfall 1.6 SW D Unit 3 Outfall 1.2 SSW E Laguna Beach (Control) 17-19 NW F SONGS Upcoast 0.9 WSW 51 Unit 2 Conduit (not listed in the ODCM) 0.1 SW 52 Unit 3 Conduit (not listed in the ODCM) 0.1 SSW Distance (miles) and Direction (sector) are measured relative to Units 2/3 midpoint as described in the ODCM Rev. 4.

Direction determined from degrees true north.

Distances are within the Units 2/3 CAB/EAB (Controlled Area Boundary/Exclusion Area Boundary)

Soil samples are not required by Technical Specifications.

Kelp samples are not required by Technical Specifications.

MCB Marine Corps Base Camp Pendleton PIC Pressurized Ion Chamber 11

TABLE A-2 SECTOR AND DIRECTION DESIGNATION FOR REMP SAMPLE LOCATION MAP DEGREES TRUE NORTH NOMENCLATURE FROM SONGS 2 AND 3 MIDPOINT Sector Center Sector 22.50 Direction Limit Line Limit Sector 348.75 0 & 360 11.25 A N 11.25 22.5 33.75 B NNE 33.75 45.0 56.25 C NE 56.25 67.5 78.75 D ENE 78.75 90.0 101.25 E E 101.25 112.0 123.75 F ESE 123.75 135.0 146.25 G SE 146.25 157.0 168.75 H SSE 168.75 180.0 191.25 J S 191.25 202.5 213.75 K SSW 213.75 225.0 236.25 L SW 236.25 247.5 258.75 M WSW 258.75 270.0 281.25 N W 281.25 292.5 303.75 P WNW 303.75 315.0 326.25 Q NW 326.25 337.5 348.75 R NNW 12

I PACIFIC OCEAN Figure 5-1 San Onofre REMP One-Mile Radius o Units 213 W~point

• Air

?Crop

• Non4fgraowy Marn. A,~mia (NIA4A)

) Ocean Bottom Saderian (08S)

• Ocean iAWr

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? Crop Dnnkln Water l Kelp SNon-Miatory Mamine Animals (NIMMA)

SOcean Bottom Sedmefw (O8S) oOcean Water

• +1 Shoreline Sed lent Soil

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Figure 5-3 San Onofre REMP Five-Mile Radius Sector N 0 UntS 2/3 Mdpoint S

~Crop D rinking Water

• Non-Migratory Manne Anknal= (NMMA)

• • Ocean Bottom Sedi*ni (O1S) So

• Ocean Wetter

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APPENDIX B

SUMMARY

, RESULTS, AND DISCUSSIONS OF 2012 ENVIRONMENTAL DATA 18

SUMMARY

To assess the changes or trends in the radioactivity level in the environment over the past year, the data from January 2012 to December 2012 were evaluated. The 2012 REMP data were evaluated according to the criteria described in NUREG/CR-4007 and with the methodology described by Currie (1968).* Excluding data attributable to factors external to SONGS, the REMP data above the critical level (1.64 times one sigma) for selected radionuclides were reduced and tabulated in the Statistical Summary of REMP Data in accordance with the format specified in Reg. Guide 4.8. The 2012 SONGS REMP database, when examined in accordance with the Currie data reduction protocol, leads to the conclusion that SONGS had no statistically significant radiological environmental impact. A summary of the type and number of REMP samples obtained in 2012 appears in Table B-3.

The exceptions, summarized in Table B-2, include isotopically analyzed samples with station related activity reported and confirmed above the a posterioriMDC. The analysis results listed in Tables B-2 are attributable to sources external to SONGS (fallout from the nuclear accident at the Fukushima Daiichi Nuclear Power Station, or Chernobly, residual fallout from legacy atmospheric nuclear weapons testing, and discharge of medically administered 1-131 from the San Juan Sewage Plant outfall). All of the 2012 REMP sample results with detectable plant related radionuclides have known sources external to SONGS. The radionuclides included in Table B-2 include 1-131 in kelp (attributable to medically administered 1-131 discharged in sewerage from the San Juan outfall),

and Cs- 137 in soil, deer meat, and marine animal flesh (attributable to residual nuclear weapons testing fallout and to Fukushima accident). Cs-137 has been intermittently detected in the indicator and in the control soil samples in past years and no correlation between Cs- 137 level in soil and proximity to the plant has been observed. The data strongly suggest that the low level Cs-137 in certain soil samples is due to fallout from nuclear weapons testing and from Chernobyl. We conclude that the low level Cs-137 in soil is not due to the operation of SONGS. 1-131 is a medically administered radionuclide which is often detected in sewage plant outfalls. The 1-131 detected in the kelp samples is attributable to sewage plant discharges external to SONGS. Unit 2 was shut down for a planned refueling outage on January 9, 2012 and did not operate for the remainder of 2012 and Unit 3 was taken off-line after a steam generator tube leak on January 31, 2012. Cs-137 levels in marine animal flesh found in indicator samples closely mirror those found in control samples. We conclude that SONGS had a negligible radiological environmental impact during 2012.

Historical trending of data near and below the detection limits is necessarily limited. The concentration of radionuclides in the environs of SONGS has generally trended downward since the early to mid- 1980s. In the past decade only a few REMP analysis results have been above the detection limit. These isotopes are detected in control as well as indicator locations and there are known sources for these radionuclides external to SONGS. The overall trend of the REMP data at SONGS is de minimis levels of anthropogenic radioactivity occasionally showing levels above the a posterioriMDC.

L. Currie. 1968 "Limits for the Qualitative Detection and Quantitative Determination - Application to Radiochemistry," Analytical Chemistry, vol. 40 pp. 586-593 19

RESULTS AND DISCUSSIONS OF 2012 ENVIRONMENTAL DATA A. DirectRadiation Calcium sulfate (CaSO 4) Thermoluminescent Dosimeters (TLDs) were placed at 49 locations and analyzed quarterly per ANSI-N545 standards. For each TLD location outside the exclusion area boundary a baseline value was computed using ten years of TLD data (2001 through 2010). The baseline is used to determine if radiation levels above the Lower Limit of Detection (LLD) for this media (5 mR per standard quarter and 10 mR per year) were observed during 2012.

TLDs located greater than five miles from SONGS are considered control TLDs. The indicator locations are selected as inner and outer rings as required by the ODCM. Additional TLDs are placed at locations of interest such as schools and hospitals. All 2012 control location TLD readings were LLD and all 2012 indicator location readings outside the EAB (Exclusion Area Boundary) were LLD.

The data indicate detectable direct radiation measurements in the immediate vicinity of SONGS.

However, the hypothetical maximum associated exposure to a member of the general public, adjusted for occupancy, is less than 1 mR per year as measured by this sample media. TLD station

1. 13 had the highest measured REMP TLD annual baseline adjusted exposure in 2012. The occupancy adjusted exposure for #13 is less than 1 mR per year. Refer to Table B-I for a summary of all 2012 SONGS REMP TLD data.

Figures 2A and 2B compare environmental radiation levels of indicator and control locations for the operational year 2012 and for previous years. These figures show the close correlation between the control and indicator location TLD exposure data.

Six laboratory control TLDs were analyzed quarterly. TLD numbers 17, 18, and 60 are used for background dose normalization. TLDs #A and #B are used to compensate for transit dose. A fader TLD is used to evaluate for the time and temperature dependent "fade" that may affect dosimeter data. After the samples were analyzed, the measured doses were corrected for pre and post field exposure times.

Neutron dosimeters were placed at REMP TLD station 55 and at selected locations around the Independent Spent Fuel Storage Installation (ISFSI). All of the neutron TLD data in 2012 was less than detectable.

20

Direct Radiation baseline evaluation and estimation of natural background An in-depth analysis of the environmental radiation results for the period of 2001 through 2010 was completed for all the monitoring locations. It can be inferred that if the standard deviation was low and no additional exposure above background was identified at a particular station, the average of that station's radiation exposure results should be equal to natural background (baseline) at that location. The baseline results for REMP TLDs have been summarized with the annual and quarterly values in the 2012 TLD Data Table. Natural background radiation is variable and a minor shift in location can yield a measurable change in background radiation. Therefore if a TLD is moved the baseline (background) for that location may be affected. In 2012 Control TLD 53 was moved approximately 100 yards because of construction and control TLD 54 was moved approximately 100 yards to a safer more appropriate location. No change in baseline dose was noted.

The baseline environmental exposure analysis of the 2001 through 2010 environmental TLD results included an assessment of the standard deviation of the quarterly results at each location. This is an appropriate methodology to determine the ability to detect radiation exposure above background.

The highest value of three standard deviations for all of the 2001 through 2010 quarterly measurements was 4.8 mR and the highest value was 9.7 mR for the annual results, providing justification for baseline or a prioriLLDs of 5 mR per quarter and 10 mR per year. The quarterly and annual results expressed in the 2012 Table B-I as values of positive exposure above background or as a notation of<LLD if the background is not exceeded.

An empirical determination of the background baseline for stations within the Exclusion Area Boundary (EAB) is not possible due to the known plant related radiological activities (storage and transport of radioactive materials) that occurred during the baseline calculation study period. The average of the non-EAB stations close to the beach was approximately 15.0 mR per quarter. A value of 15.0 mR per quarter was conservatively selected as the baseline for the REMP stations located within the EAB.

In 1980 the Department of Energy (DOE) conducted an Aerial Radiological Survey of SONGS and the surrounding area. A current value of baseline / background value of 15.0 mR per standard quarter within the SONGS EAB is consistent with the 1980 gamma exposure rates reported by the DOE for the areas immediately north and south of SONGS, taking into account the reduction in environmental radioactivity and background dose rates caused by the decay of atmospheric nuclear weapons testing fallout since 1980.

21

TABLE B-1 2012 TLD Data Table B-1 Baseline/ Background corrected REMP TLD data Baseline Adjusted 2012 Baseline Dist. Quarterly 2012 Quarterly Results (mR) 2012 Quarterly Results (mnR) Annual Annual Ad Location Miles Baseline 3 4 23R Baseline Total ___

S 2 3 4 13 4(mR) 2012 Total I City of San Clemente 5.7 17.5 18.2 17.4 18.2 17.6 <LLD <LLD <LLD <LLD 69.9 71.3 <LLD 2 Camp San Mateo- MCB 3.6 18.6 19.5 17.0 19.7 17.8 <LLD <LLD <LLD <LLD 74.4 74.0 <LLD 3 Camp San Onofre- MCB 2.8 16.4 17.4 15.5 16.9 15.7 <LLD <LLD <LLD <LLD 65.5 65.4 <LLD 4 Camp Horno - MCB 4.4 18.1 18.6 16.4 19.2 16.8 <LLD <LLD <LLD <LLD 72.3 71.0 <LLD 6 Old Route 101 (ESE) 3.0 11.4 12.6 10.2 13.1 10.5 <LLD <LLD <LLD <LLD 45.6 46.3 <LLD Noncommissioned Officers' 8 Beach Club 1.4 15.4 17.I 17.4 17.2 15.9 <LLD <LLD <LLD <LLD 61.8 67.6 <LLD 10 Bluff(Adjacent to PIC #1) 0.7 16.4 17.9 15.2 16.6 16.1 <LLD <LLD <LLD <LLD 65.7 65.8 <LLD 19 San Clemente Highlands 4.9 17.8 18.9 17.8 19.0 17.7 <LLD <LLD <LLD <LLD 71.3 73.4 <LLD 22 Fonrer US Coast Guard 2.7 17.9 18.9 17.6 17.9 17.8 <LLD <LLD <LLD <LLD 71.7 72.0 <LLD Station__ ___

23 SDG&E Service Center 8.1 15.8 17.0 15.0 16.5 15.7 <LLD <LLD <LLD <LLD 63.1 64.2 <LLD Yard 31 Aurora Park- Mission 18.6 18.5 19.1 17.9 19.0 17.9 <LLD <LLD <LLD <LLD 74.1 73.9 <LLD Viejo (Control) 33 Camp Talega - MCB 5.9 18.9 19.4 18.6 19.5 18.0 <LLD <LLD <LLD <LLD 75.4 75.5 <LLD 34 San Onofre School - MCB 1.9 16.2 16.5 15.4 16.5 16.0 <LLD <LLD <LLD <LLD 64.7 64.4 <LLD 35 Range 312- MCB 4.8 16.9 17.6 15.2 15.9 14.0 <LLD <LLD <LLD <LLD 67.5 62.8 <LLD 36 Range 208C - MCB 4.1 19.5 19.5 18.6 19.5 17.6 <LLD <LLD <LLD <LLD 77.8 75.3 <LLD 38 San Onofre State Beach 3.4 14.3 16.1 13.1 14.2 14.1 <LLD <LLD <LLD <LLD 57.2 57.5 <LLD ParkII 40 SCE Training Center - 0.7 17.1 18.7 15.8 18.8 15.9 <LLD <LLD <LLD <LLD 68.4 69.2 <LLD Mesa (Adjacent to PIC #3) 44 Fallbrook Fire Station 17.7 14 15.0 14.5 14.4 15.4 <LLD <LLD <LLD <LLD 56.0 59.3 <LLD 46 SanOnofreStateBeach 1.0 12.2 13.5 11.8 13.7 11.7 <LLD <LLD <LLD <LLD 48.7 50.7 <LLD Park 47 Camp Las Flores - MCB 8.6 13.3 14.2 12.9 13.4 13.7 <LLD <LLD <LLD <LLD 53.1 54.2 <LLD 49 Camp Chappo - MCB 12.9 14.2 16.0 14.3 14.7 14.8 <LLD <LLD <LLD <LLD 56.9 59.7 <LLD 50 Oceanside Fire Station (Control) 15.6 16.6 17.6 16.0 17.4 15.8 <LLD <LLD <LLD <LLD 66.3 66.9 <LLD 53 San Diego County 44.2 18.2 19.1 18.5 18.7 20.0 <LLD <LLD <LLD <LLD 72.9 76.3 <LLD Operations Center 54 Escondido Fire Station 31.8 16.1 17.4 16.7 16.7 17.8 <LLD <LLD <LLD <LLD 64.4 68.6 <LLD 61 Mesa - East Boundary (PIC 0.7 15.4 16.0 14.4 15.7 14.3 <LLD <LLD <LLD <LLD 61.7 60.4 <LLD

1. 4) 62 Camp Pendleton (PIC #5) 0.7 13.2 13.4 11.8 14.1 10.6 <LLD <LLD <LLD <LLD 50.4 49.9 <LLD 63 Camp Pendleton (PIC #6) 0.6 13.9 14.5 13.2 15.9 12.3 <LLD <LLD <LLD <LLD 55.5 55.9 <LLD 64 Camp Pendleton (PIC #7) 0.6 15 16.4 13.9 16.9 13.3 <LLD <LLD <LLD <LLD 60.1 60.6 <LLD 65 Camp Pendleton (PIC #8) 0.7 13.4 14.7 12.4 15.1 12.3 <LLD <LLD <LLD <LLD 53.8 54.5 <LLD 22

TABLE B-1 2012 TLD Data Table B-I Baseline/ Background corrected REMP TLD data Dist. Quarterly 2012 Quarterly Results (mR) Baseline Adjusted 2012 Baseline

1. Location 2012 Quarterly Results (mR) Annual Annual Adjusted Miles Baseline I 2 3 4 1 2 3 4 Baseline Total 2012 Total (mR) 66 SanOnofreStateBeach 0.6 14 16.22 12.91 15.54 12.29 <LLD <LLD <LLD <LLD 55.6 56.96 <LLD (PIC #9) 67 ForerSONGS 0.6 16.9 19.63 15.66 18.55 15.87 <LLD <LLD <LLD <LLD 67.7 69.71 <LLD Evaporation Pond (PIC #2) 68 Range 210C- MCB 4.4 15 16.1 14.67 16.17 13.4 <LLD <LLD <LLD <LLD 60.2 60.34 <LLD 74 OceansideCityHall 15.6 13.3 14.42 14.1 14.02 12 <LLD <LLD <LLD <LLD 53.4 54.54 <LLD (Backup Control) 75 Gate 25 MCB 4.6 15.9 17.76 15.06 17.29 14.64 <LLD <LLD <LLD <LLD 63.6 64.75 <LLD 76 El Camino Real Mobil 4.6 17.3 19.35 17.64 18.47 16.84 <LLD <LLD <LLD <LLD 69.4 72.3 <LLD Station 77 Area 62 Heavy Lift Pad 4.2 19.2 20.52 18.61 19.67 17.24 <LLD <LLD <LLD <LLD 76.9 76.04 <LLD 78 Horno Canyon 4.4 I 1.1 12.48 10.87 12.46 10.1 <LLD <LLD <LLD <LLD 44.6 45.91 <LLD II Fonner Visitors'Center 0.4* 15 16.71 15.39 17.17 14.42 <LLD <LLD <LLD <LLD 60 63.69 <LLD 12 South Edge of Switchyard 0.2* 15 17.71 15.65 16.77 16.61 <LLD <LLD <LLD <LLD 60 66.74 <LLD 13 Southeast Site Boundary 0.4* 15 26.21 25.84 26.35 18.92 11.21 10.84 11.35 <LLD 60 97.32 37.32 (Bluft) 15 Southeast Site Boundary 0.1* 15 21.9 20.19 18.76 17.84 6.9 5.19 <LLD <LLD 60 78.69 18.69 (Office Bldg) 16 EastSoutheastSite 0.4* 15 21.54 20.05 20.42 19.56 6.54 5.05 5.42 <LLD 60 81.57 21.57 Boundary 41 Old Route 101 - East 0.3* 15 16.14 15.05 16.76 14.89 <LLD <LLD <LLD <LLD 60 62.84 <LLD 55 San Onofre State Beach (U I 0.2* 15 22.16 19.67 19.51 17.58 7.16 <LLD <LLD <LLD 60 78.92 18.92 West) 56 San Onofre State Beach (U1 0.2* 15 23.83 18.1 18.96 16 8.83 <LLD <LLD <LLD 60 76.89 16.89 West) 57 San Onofre State Beach 0.1

• 15 20.42 18.48 17.54 16.26 5.42 <LLD <LLD <LLD 60 72.7 12.7 (Unit 2) 58 San Onofre State Beach 0.1* 15 20.3 18.1 17.54 14.68 5.3 <LLD <LLD <LLD 60 70.62 10.62 (Unit 3) 59 SONGS Meteorological 0.3* 15 22.57 20.17 20.92 19.7 7.57 5.17 5.92 <LLD 60 83.36 23.36 Tower 73 South Yard Facility 0.4* 15 24.73 24.58 23.71 22.19 9.73 9.58 8.71 7.19 60 95.21 35.21

• Within Exclusion Area Boundary

• Station is within the EAB (Exclusion Area Boundary). The baseline has been estimated to be 15.0 within the EAB.

23

Quality Control Duplicate Direct Radiation Samples Duplicate QC TLDs were installed adjacent to TLD #66 and TLD #67. Refer to Appendix C for results. These TLDs were not required by the ODCM and are not included in the Statistical Summary of REMP Data.

ISFSI Direct Radiation Samples Independent Spent Fuel Storage Installation (ISFSI) TLDs were deployed in the vicinity of the ISFSI. Data from these TLDs have not been included in the statistical summary of REMP data since these TLDs are not required by the ODCM. The ISFSI data are listed and discussed in Appendix J.

B. Airborne Particulate,Iodine, and Composite Isotopic Analyses Air particulate samples were collected on a weekly basis from seven indicator locations and from one control location. The samples were analyzed for gross beta activity, 1-13 1, and composited quarterly for gamma isotopic analysis. Sample locations were selected according to the requirements of the ODCM.

Gross beta analysis is a measure of total radioactivity of beta-emitting radionuclides in a sample.

Beta radiation is emitted by many radionuclides, but beta decay gives a continuous energy spectrum rather than the discrete energy lines or peaks associated with gamma radiation. Gross beta measurements only indicate whether the sample contains normal or abnormal concentrations of beta-emitting radionuclides and does not identify specific radionuclides. Gross beta measurement data serves as a screening tool to determine if further analysis is required.

All gross beta activity analysis results were above the a posterioriMDC. The concentration of gross beta activity in the samples collected from the indicator locations ranged from 0.0 118 to 0.0904 pCi/in 3 , averaging 0.0380 pCi/m3 of air. The concentrations of gross beta activity in the 3 3

samples from the control location ranged from 0.0 168 to 0.0927 pCi/mi , averaging 0.0411 pCi/m of air. Figure 3D shows the close correlation between indicator and control gross beta activity level during 2012 at different locations.

Per the requirements of the ODCM, Section 5, Table 5.1, an assessment was performed to determine whether the gross beta activity of the indicators exceeded 10 times the background (control location #16). The results showed that indicator locations maximum gross beta activity in air in 2012 was 0.0904 pCi/i 3 and the 2012 control location average was 0.0411 pCi/m3 , which is less than 10 times background. No action was required by the ODCM.

Indicator samples analyzed for 1-131 showed a range of 0.0025 to 0.0203 pCi/in 3 , with a mean of 0.0106 pCi/min and control3. location average was 0.0124 pCi/in 3 . No further action was required by the ODCM.

Quarterly composite gamma spectral analyses yielded naturally occurring beryllium-7 (Be-7) above the a posterioriMDC.

We conclude that the operation of SONGS had no impact on the environment as measured by this sample medium.

24

C. Ocean Water Monthly ocean water samples were collected from three indicator locations in the vicinity of each station discharge and from the control location at Newport Beach. The samples were analyzed for naturally occurring and SONGS-related gamma-emitting radionuclides. Quarterly composite ocean water samples were analyzed for tritium according to ODCM requirements.

Throughout 2012, only naturally occurring radionuclides were detected in the monthly gamma spectral analyses of ocean water. Monthly ocean water samples were also analyzed for tritium, consistent with the State of California Department of Public Health (DPH) split sample program.

During 2012 all REMP ocean water sample results for plant related radionuclides were below the a priori LLD, and below the lower count specific a posterioriMDC. One quarterly composite tritium sample was below the a priori LLD but above the a posterioriMDC. The DPH monthly ocean water tritium sample results were all below the DPH reported Minimum Detectable Activity (MDA) for tritium and plant related radionuclides.

The data indicate that the operation of SONGS had a negligible impact on the environment as measured by this sample medium.

D. Drinking Water In 2012, drinking water samples were collected on a monthly basis from one indicator location and from the Oceanside control location. Samples were analyzed for tritium, gross beta, and naturally occurring and SONGS-related gamma emitting radionuclides. There is no drinking water pathway for liquid effluent at SONGS.

No station related radionuclides were detected in drinking water during 2012. The gross beta activity is due to naturally occurring radionuclides. The operation of SONGS had no impact on this sample medium.

E. Shoreline Sediment (Beach Sand)

Beach sand was collected semiannually in 2012 from three indicator locations and from a control location situated in Newport Beach. After collection, the samples were analyzed for plant-related and naturally occurring radionuclides. Naturally occurring K-40 and Th-228 were detected in all samples. No plant related radionuclides were reported above the a posterioriMDC. The operation of SONGS had no impact on the environment as measured by this sample medium.

25

F. Ocean Bottom Sediments Ocean bottom sediments were collected in the vicinity of each of the three SONGS discharge locations and at the Newport Beach control location. The samples were analyzed by gamma-spectral analysis for naturally occurring and station related radionuclides. Naturally occurring K-40 and Th-228 were detected in ocean bottom sediment samples collected during 2012.

Four non-ODCM ocean bottom sediment samples were obtained from two locations, Unit 2 outfall conduit and Unit 3 outfall conduit. The conduit samples were collected to measure the radiological environmental effect potentially resulting from the minor conduit leakage. During 2012, all of the conduit sample analysis results were below the MDC for station related radionuclides.

We conclude that the operation of SONGS had no impact on the environment as measured by this sample medium.

G. Non-MigratoryMarine Species (Flesh)

Species of adult fish, crustacea and mollusks, were collected on a semi-annual basis at the SONGS Unit 1outfall, the SONGS Units 2/3 outfall and from Laguna Beach control location. The flesh portion of each sample type was analyzed for gamma-emitting station-related and naturally occurring radionuclides. The results were subsequently reported to SCE in terms of wet sample weights. Because results based on a wet sample weight are most useful for calculating doses, the results of sample analyses are summarized in terms of "as received" wet weights. No plant related radionuclides were detected above the a posterioriMDC.

Naturally occurring K-40 was detected in most marine species samples collected during 2012.

The operation of SONGS had no impact on the environment as measured by this sample medium.

The potential dose to members of the public from consumption of marine species near SONGS is negligible.

H. Local Crops Fleshy and leafy crops were collected semiannually in 2012 from the SONGS garden and from the control location 21 miles from SONGS Units 2/3 midpoint in sector F. No plant related radioactivity was detected in 2012 samples. Refer to Table B-4. It is concluded that SONGS had no measurable impact on this sample medium.

L Soil To determine if there is evidence of a build-up of radionuclides in the land near SONGS, indicator soil samples were collected from the East Site Boundary (Former Visitors center), Old Route 101, Basilone Road, and Camp San Onofre. A control sample was obtained from Oceanside. Surface soil was collected from all indicator and control locations at the depth of 3 inches. The sampling protocol is consistent with the procedure described in HASL-300. Soil sampling is not required by the ODCM.

Soil samples were analyzed for naturally occurring and SONGS-related gamma-emitting radionuclides using gamma spectral analysis. All 2012 soil samples yielded naturally occurring K-40 and Th-228. Cs-137 was detected in two indicator samples, as well as the control sample.

26

Cs- 137 in environmental sediment samples is attributable to residual nuclear weapons testing fallout or to the Fukushima accident. Refer to Table B-2.

Cs-137 and strontium-90 (Sr-90) were detected in soil profile analyses conducted in previous years.

These radionuclides are mostly due to the nuclear weapons testing fallout depositing on soil and retention of these radionuclides due to their long half-lives. The presence of Cs-137 in the indicator and the control locations in previous years supports the conclusion that the major source of this radionuclide is fallout deposition. During 2012, the operation of SONGS did not have a measurable effect on the environment as measured by this sample medium.

J. Kelp Sampling Kelp was collected in April and October of 2012 from the San Onofre kelp beds, San Mateo kelp bed, Barn kelp bed, the Dana Point Kelp Bed, the Capistrano Beach Reef, the San Clemente Pier, the Wheeler North Artificial Reef, and from the Salt Creek control location. Upon collection, the samples were analyzed by gamma-spectral analysis for naturally occurring and Station-related radionuclides. The radionuclides detected in 2012 included K-40 and 1-131. K-40 is naturally occurring and not related to the operation of SONGS. Refer to Table B-2.

1-131 has been detected at indicator and control locations in previous years. The 1-131 data ocean water samples near SONGS have been consistently less than detectable. The northern control locations are too far away and in the predominantly upstream current direction for the 1-131 activity to be attributable to SONGS. The control kelp sample stations near the San Juan Sewage Plant outfall have consistently yielded the highest 1-131 activity. The San Juan outfall has consistently yielded 1-131 at detectable levels. Refer to Table B-2 for a complete list of the 2012 kelp samples with detectable 1-131 activity and for the 2012 results for the San Juan Sewage Plant effluent sample 1-131 analyses. 1-131 in kelp data, graphically presented in Figure 4, shows a relatively close correlation between indicator and control locations over a 25 year period - further supporting the assessment that the likely source for this radionuclide is external to SONGS.

Refer to Figure 5-6 for the relative location of the kelp beds, the San Juan Sewage Plant outfall, and the SONGS outfalls. The data strongly support the conclusion that the 1-131 detected in kelp is attributable to medically administered 1-131 discharged through the San Juan Sewage Plant outfall and not to the operation of SONGS.

K. Deer Sampling Deer meat and bone samples were collected in 2012 because locally harvested deer meat is a potential pathway to humans. Road kill deer were sampled in accordance with a California Fish and Game scientific take permit issued to the Camp Pendleton Game Warden. The 2012 analysis results indicate residual fallout, Cs- 137 from external anthropogenic factors such as nuclear weapons testing and Chernobyl or Fukushima Dai-Ichi, are the most likely cause for the one above a posteriori MDC data point. The deer meat and bone gamma isotopic data indicate that effects from the operation of SONGS were not detected in this sample media.

L. Correlationof Effluent Concentrationsto Concentrationsin the Environment In accordance with 10 CFR 50 Appendix I, IV.b.2 data on measurable levels of radiation and radioactive materials in the environment have been evaluated to determine the relationship between 27

quantities of radioactive material released in effluents and resultant radiation doses to individuals from principal pathways of exposure.

The REMP soil Cs-137 levels in the control and indicator samples are statistically equivalent, leading to the conclusion that Cs-137 in soil is attributable to residual fallout from external anthropogenic factors such as nuclear weapons testing, Chernobyl, and Fukushima Dai-Ichi.

Data from 2012 continue to support the historical conclusion that the measured concentration of I-131 in kelp is not increasing near SONGS, and is not statistically higher around SONGS than it is at the control locations. 1-131 in kelp is due to the release of medical administrations to the ocean from sewage treatment facilities. The effluent based correlation calculation indicates that 1-131 activity in kelp attributable to the operation of SONGS would be undetectable and the resultant doses to individuals would be negligible.

The data from air samplers close to SONGS, the data from air samplers further away, and the data from the Oceanside control sampler are statistically equal.

28

F - Dasna N~

C Figure 5-6 2012 Kelp Samples A APui 0 October 0 Units 213MIdpoint

• SanvjuanOutfal Diffusrs N

1 0 1 2 Miss F~.NaMe 2012ARORAFqueýi11.8m~d Pat -S0fdGSAREORAhXrlkRE0lR2012 Dea i2I2i

,~*ted nasal i'.ae 5AWiif9 acwc eoendedw eIwmln pws o"ft Diannee WOniocbwn & 0 m 0 SCI ReelPr=e.1 =epm 29

TABLE B-2 Summary of Nuclear Power Plant related Gamma Isotopic Analyses confirmed above MDC Sample Media & location Radionuclide Sample Value MDC (a posteriori)

Aquatic Kelp San Onofre Kelp Bed 1-131 (38.5 + 11) E-3 pCi/g 10 E-3 pCi/g Station A 16APR12 Aquatic Kelp San Mateo Kelp Bed 1-131 (20 - 10) E-3 pCi/g 12 E-3 pCi/g Station B 16APR12 Aquatic Kelp Barn Kelp Bed 1-131 (32 + 9) E-3 pCi/g 9 E-3 pCi/g Station C 16APR12 Aquatic Kelp Salt Creek 1-131 (52 - 12) E-3 pCi/g 11 E-3 pCi/g Station E 16APR12 Aquatic Kelp Dana Point Kelp Bed 1-131 (56 - 11) E-3 pCi/g 9 E-3 pCi/g Station F 16APR12 Aquatic Kelp Capistrano Beach Reef 1-131 (79 +/- 11) E-3 pCi/g 7 E-3 pCi/g Station G 16APR12 Aquatic Kelp San Clemente Pier 1-131 (66 +/- 12) E-3 pCi/g 11 E-3 pCi/g Station H 16APR12 Aquatic Kelp Wheeler North Artificial Reef 1-131 (47 +/- 9) E-3 pCi/g 8 E-3 pCi/g Station I 16APR12 Aquatic Kelp San Onofre Kelp Bed 1-131 (10+/- 6) E-3 pCi/g 6 E-3 pCi/g Station A 22MAY121 Aquatic Kelp San Mateo Kelp Bed 1-131 (14 +/- 6) E-3 pCi/g 6 E-3 pCi/g Station B 22MAY12' Aquatic Kelp Salt Creek Bed 1-131 (11 +/-5) E-3 pCi/g 6 E-3 pCi/g Station E 22MAY12' Aquatic Kelp Dana Point Kelp Bed 1-131 (28 +/- 8) E-3 pCi/g 6 E-3 pCi/g Station F 22MAY2l' Aquatic Kelp Capistrano Beach Reef 1-131 (18 +/- 6) E-3 pCi/g 6 E-3 pCi/g Station G 22MAY12' 30

TABLE B-2 Summary of Nuclear Power Plant related Gamma Isotopic Analyses confirmed above MDC Sample Media & location Radionuclide Sample Value MDC (a posteriori)

Aquatic Kelp San Clemente Pier 1-131 (13 +/- 6) E-3 pCi/g 6 E-3 pCi/g Station H 22MAY12' Aquatic Kelp Wheeler North Artificial Reef 1-131 (13 + 7) E-3 pCi/g 8 E-3 pCi/g Station I 22MAY12' Aquatic Kelp San Onofre Kelp Bed 1-131 (39 +/- 9) E-3 pCi/g 7 E-3 pCi/g Station A 15OCT12 Aquatic Kelp San Mateo Kelp Bed 1-131 (16 + 9) E-3 pCi/g 8 E-3 pCi/g Station B 15OCT12 Aquatic Kelp Barn Kelp Bed 1-131 (24 - 11) E-3 pCi/g 10 E-3 pCi/g Station C 15OCT12 Aquatic Kelp Salt Creek 1-131 (43 - 9) E-3 pCi/g 8 E-3 pCi/g Station E 15OCT12 Aquatic Kelp Dana Point Kelp Bed 1-131 (35 - 8) E-3 pCi/g 8 E-3 pCi/g Station F 15OCT12 Aquatic Kelp Capistrano Beach Reef 1-131 (28 - 6) E-3 pCi/g 7 E-3 pCi/g Station G 15OCT12 Aquatic Kelp San Clemente Pier 1-131 (14 - 6) E-3 pCi/g 8 E-3 pCi/g Station H 15OCT12 Aquatic Kelp Wheeler North Artificial Reef 1-131 (16 + 6) E-3 pCi/g 6 E-3 pCi/g Station I 15OCT12 San Juan Sewage2 1-131 (14800 +/- 2620) E-3 pCi/l 2220 E-3 pCi/l Plant Discharge 22MAY12 Soil Camp San Onofre Cs-137 (103 +/- 38) E-3 pCi/g 43 E-3 pCi/g Location# 1 27SEP12 Soil Prince of Peace Abbey Cs-137 (249 +/- 56) E-3 pCi/g 42 E-3 pCi/g Location # 7 27SEP12 31

TABLE B-2 Summary of Nuclear Power Plant related Gamma Isotopic Analyses confirmed above MDC Sample Media & location Radionuclide Sample Value MDC (a posteriori)

Deer Meat Cs-137 (11 +4) E-3 pCi/g 4 E-3 pCi/g Indicator Location 29SEP12 Marine Animal Flesh Laguna Beach, Black Perch Cs-137 (4 + 4) E-3 pCi/g 4 E-3 pCi/g Station C 10APR12 Marine Animal Flesh Units 2&3 Outfall, Sand Bass Cs-137 (4+ 3) E-3 pCi/g 3 E-3 pCi/g Station B 24APR12 Marine Animal Flesh Laguna Beach, Sheephead Cs-137 (6 + 3) E-3 pCi/g 3 E-3 pCi/g Station C 9OCT12 Marine Animal Flesh Laguna Beach, Spiny Lobster Cs-137 (3 + 2) E-3 pCi/g 3 E-3 pCi/g Station C 9OCT12 Marine Animal Flesh Units 1 Outfall, Sheephead Cs-137 (6 +/- 3) E-3 pCi/g 3 E-3 pCi/g Station A 22OCT12 Marine Animal Flesh Units 2&3 Outfall, Spiny Cs-137 (3 +/- 3) E-3 pCi/g 3 E-3 pCi/g Lobster Station B 22OCT12 Air Filter San Luis Rey Substation Cs-137 (0.4 +/- 0.3) E-3 pCi/m3 0.3 E-3 pCi/m3 Location #16 27MAR12 Ocean Water Unit 2 Outfall H-3 (404 +/- 292) pCi/L 403 pCi/L Location B 17SEP12 32

TABLE B-3 REMP SAMPLE ANALYSIS

SUMMARY

FOR 2012 Sampling # of Total # of Medium Analysis Type Frequency Locations Analyses in 2012 '

Direct Radiation Dosimetry Quarterly 49 196 Airborne Particulates Gross Beta Weekly 8 416 Charcoal Cartridge 1-131 Weekly 8 415 Airborne Particulates Ge (Li) Scan Quarterly 8 32 Ocean Water Ge (Li) Scan, H-3 Monthly 4 52 Ocean Water H-3 Quarterly 4 16 Drinking Water, Ge (Li) Scan, Monthly 2 25 Unfiltered H-3 2 25 Gross Beta 2 25 Shoreline Sediment Ge (Li) Scan Semi-Annually 4 8 Ocean Bottom Sediment Ge (Li) Scan Semi-Annually 7 14 Marine Species, Flesh Ge (Li) Scan Semi-Annually 3 24 Crops Ge (Li) Scan Semi-Annually 2 12 Kelp Ge (Li) Scan Semi-Annually 8 23 Deer Meat Ge (Li) Scan Semi-Annually 18 18 Soil Ge (Li) Scan Annually 5 5 The total number of analyses listed above include samples not required by the ODCM, including San Clemente drinking water well samples (collection requested by the City of San Clemente), additional ocean water samples, additional ocean bottom sediment samples, additional crop samples, deer meat samples, and additional control kelp samples. The additional drinking water samples were not collected for all of 2012 because the San Clemente drinking water wells were not in service for all of 2012. Additional control kelp samples were obtained to track 1-131 (iodine- 131) activity in kelp attributable to municipal waste water discharges.

Could not retrieve non-ODCM required 1-131 cartridge from Station I I Mesa EOF for one week because of equipment problems.

Therefore, the total number of analyses will not always equal the product of the ODCM specified sample frequency times the total number of ODCM locations.

33

STATISTICAL

SUMMARY

OF REMP DATA FOR 2012 34

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

SAN ONOFRE NUCLEAR GENERATING STATION DOCKET NOS. 50-206, 50-361, 50-362 SAN DIEGO COUNTY, CALIFORNIA Reporting Period: 1/11/2012 to 12/31/2012 Medium or Pathway Type and Total Lower Limit All Indicator Location with Highest Annual Mean Number of Nonroutine sampled (Unit of Number of Analysis of Detection Locations Mean Name, Distance Mean Control Locations Reported Measurement) Performed (LLD) (Range) and Direction (Range) Mean (Range) Measurements Quarterly Gamma Exposure - Table 1A (mR/std quarter)

Gamma 196 5 16.91 (152/152) Southeast Site Boundary 24.33 (4/4) 16.46 (44/44) 0 (10.1 - 26.35) 0.4 Mi. ESE (18.92 - 26.35) (12.0 - 20.03)

(1) Indicator location TLDs include all REMP TLDs 5.0 miles or closer to SONGS 2/3 midpoint.

(2) Control location TLDs include all REMP TLDs more than 5.0 miles from SONGS 2/3 midpoint.

(3) TLD data excludes QC TLDs, transit dose TLDs, and ISFSI TLDs.

35

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

SAN ONOFRE NUCLEAR GENERATING STATION DOCKET NOS. 50-206, 50-361, 50-362 SAN DIEGO COUNTY, CALIFORNIA Reporting Period: 1/11/2012 to 12/31/2012 Medium or Pathway Type and Total Lower Limit All Indicator Location with Highest Annual Mean Number of Nonroutine sampled (Unit of Number of Analysis of Detection Locations Mean Name, Distance Mean Control Locations Reported Measurement) Performed (LLD) (Range) and Direction (Range) Mean (Range) Measurements Weekly Airborne Particulates Gross Beta Activity - Table 2 (pCi/m3)

Gross Beta 416 0.01 0.0380 (363/363) San Luis Rey Substation 0.0411 (53/53) 0.0411 (53/53) 0 (0.0118 - 0.0904) 16.7 Mi. SE (0.0168 - 0.0927) (0.0168 - 0.0927) 36

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

SAN ONOFRE NUCLEAR GENERATING STATION DOCKET NOS. 50-206, 50-361, 50-362 SAN DIEGO COUNTY, CALIFORNIA Reporting Period: 1/1/2012 to 12131/2012 Medium or Pathway Type and Total Lower Limit All Indicator Location with Highest Annual Mean Number of Nonroutine sampled (Unit of Number of Analysis of Detection Locations Mean Name, Distance Mean Control Locations Reported Measurement) Performed (LLD) (Range) and Direction (Range) Mean(Range) Measurements Weekly Radioiodine 1-131 Activity - Table 3 (pCi/m3) 1-131 415 0.07 0.0106 (22/363) Marine Corps Base (Camp 0.0145 (2/52) 0.0124 (5/52) 0 (0.0025-0.0203) Pendleton East) (0.0093 - 0.0197) (0.0077 - 0.0173) 0.7 Mi. E This table summarizes the weekly air iodine 131 cartridge data above the critical level (1.64 x one sigma). Note that in an ideal gamma isotopic database, consisting entirely of sample values with no detectable radioactivity, approximately 5% of the data will be greater than the critical level. Iodine 131 is attributable to the nuclear accident at the Fukushima Daiichi Nuclear Power Station.

37

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

SAN ONOFRE NUCLEAR GENERATING STATION DOCKET NOS. 50-206, 50-361, 50-362 SAN DIEGO COUNTY, CALIFORNIA Reporting Period: 1/1/2012 to 12/3112012 Medium or Pathway Type and Total Lower LLimit All Indicator Location with Highest Annual Mean Control Locations Number of Nonroutine sampled (Unit of Number of Analysis of Dete ction Locations Mean Name, Distance Mean Mean (Range) Reported Measurement) Performed (LLD (Range) and Direction (Range) Measurements Quarterly Comp. Airborne Particulates Gamma - Table 4A (pCi/m3)

Be-7 32 0.20 (28/28) AWS Roof Parking 0.22 (4/4) 0.21 (4/4) 0 (0.12 - 0.35) 0.18 Mi. NW (0.15 - 0.35) (0.17 - 0.29)

Cs-134 32 0.05 3.41E-4 (4/28) Former SONGS 4.03E-4 (1/4) <LLD (0/4 0 (2.62E 4.09E-4) Evaporation Pond (4.03E 4.03E-4) (-)

0.6 Mi. NW 2.77E-4 (4/28) San Luis Rey Substation 3.76E-4 (1/4) 3.76E-4 (1/4)

Cs-137 32 0.06 (2.11E 3.12E-4) 16.7 Mi. SE (3.76E 3.76E-4) (3.76E 3.76E-4) 0 Be-7 (Beryllium 7) is a naturally occurring radioactive isotope produced by cosmic radiation. Be-7 was confirmed above the detection limit in all the SONGS air particulate quarterly composite samples analyzed in 2012. Detectable Cs-137 at the control location is attributable to weapons testing fallout and is not attributable to the operation of SONGS.

The term "< LLD," as used above, means that all results were less than the critical level (1.64 x one sigma). The critical level is used to determine if a bias exists in the database and is not used to determine if a particular sample result should be considered other than background.

38

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

SAN ONOFRE NUCLEAR GENERATING STATION DOCKET NOS. 50-206, 50-361, 50-362 SAN DIEGO COUNTY, CALIFORNIA Reporting Period: 1/1/2012 to 12/31/2012 Medium or Pathway Type and Total Lower Limit of All Indicator Location with Highest Annual Mean Control Locations Number of Nonroutine sampled (Unit of Number of Analysis Detection Locations Mean Name, Distance Mean Contration Reported Measurement) Performed (LLD) (Range) and Direction (Range) Mean (Range) Measurements Monthly Ocean Water Gamma Spectral Analysis - Table 5 (pCi/I)

Ba-140 52 15 2.94 (2/40) Unit 3 Conduit 3.63 (1/2) <LLD (0/12)

(2.25 - 3.63) 0.1 Mi. SSW (3.63 - 3.63) (-)

Co-58 52 15 0.91 (3/40) (B) Outfall - Unit 2 1.09 (1/12) <LLD (0/12)

(0.80 - 1.09) 1.5 Mi. SW (1.09- 1.09) (-)

Co-60 52 15 2.05 (4/40) (B) Outfall - Unit 2 3.18 (1/12) <LLD (0/12)

(1.05 - 3.18) 1.5 Mi. SW (3.18-3.18) (-)

Cs- 134 52 15 1.82 (5/40) Unit 2 Conduit 2.65 (1/2) 1.43 (2/12)

(1.22 - 2.65) 0.1 Mi. SW (2.65 - 2.65) (1.42 - 1.43)

Cs-137 52 18 1.46 (4/40) Unit 3 Conduit 2.55 (1/2) <LLD (0/12)

(0.84 - 2.55) 0.1 Mi. SSW (2.55 - 2.55) (-)

Fe-59 52 30 3.29 (2/40) (A) Station Discharge 3.29 (2/12) 2.69 (2/12)

(3.00 - 3.58) Outfall - Unit1 (3.00 - 3.58) (1.59 - 3.84) 0.6 Mi. SW H-3 52 3000 <LLD (0/40) (D) Newport Beach 217.00 (1/12) 217.00 (1/12)

(-) 30 Mi. NW (217.00 - 217.00) (217.00- 217.00) 1.35 (1/12) 1-131 52 15 2.25 (1/40) Unit 3 Conduit 2.25 (1/2)

(2.25 - 2.25) 0.1 Mi. SSW (2.25 - 2.25) (1.35 - 1.35)

La-140 52 15 2.94 (2/40) Unit 3 Conduit 3.63 (1/2) <LLD (0/12)

(2.25 - 3.63) 0.1 Mi. SSW (3.63 - 3.63 (-)

Mn-54 52 15 <LLD (0/40) (D) Newport Beach 1.21 (2/12) 1.21 (2/12)

(-) 30 Mi. NW (0.84-1.59 (0.84- 1.59)

Nb-95 52 15 1.44 (11/40) Unit 2 Conduit 1.77 (1/2) 1.30 (5/12)

(0.90 - 2.13) 0.1 Mi. SW (1.77- 1.77) (0.80 - 1.72)

Zn-65 52 30 4.13 (1/40) Unit 2 Conduit 4.13 (1/2) <LLD (0/12)

(4.13-4.13) 0.1 Mi. SW (4.13-4.13) (-)

Zr-95 52 15 2.58 (2/40) (A) Station Discharge 3.25 (1/12) <LLD (0/12)

(1.91- 3.25) Outfall - Unit1 (3.25 - 3.25) (-)

0.6 Mi. SW The term "< LLD," as used above, means that all results were less than the critical level (1.64 x one sigma). The critical level is used to determine if a bias exists in the database and is not used to determine if a particular sample result should be considered other than background. The numerical values listed in this table are those values above the critical level and do not indicate that these radionuclides were detected in any samples.

This table is a statistical summary of the radionuclides detected in 2012 (K-40 & Th-230) and the radionuclides listed in the ODCM 39

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

SAN ONOFRE NUCLEAR GENERATING STATION DOCKET NOS. 50-206, 50-361, 50-362 SAN DIEGO COUNTY, CALIFORNIA Reporting Period: 1/1/2012 to 12/31/2012 Medium or Pathway Type and Total Lower Limit of All Indicator Location with Highest Annual Mean Control Locations Number of Nonroutine sampled (Unit of Number of Analysis Detection Locations Mean Name, Distance Mean Reported Measurement) Performed (LLD) (Range) and Direction (Range) Mean (Range) Measurements Quarterly Composite Ocean Water Tritium Activity - Table 7 (pCi/I)

H-3 16 3000 315.00 (2/12) (Outfall - Unit 2 404.00 (1/4) 302.00 (1/4) 0 (226.00-404.00) 1.5 Mi. SW (404.00 - 404.00) (302.00 - 302.00) 40

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

SAN ONOFRE NUCLEAR GENERATING STATION DOCKET NOS. 50-206, 50-361, 50-362 SAN DIEGO COUNTY, CALIFORNIA Reporting Period: 1/11/2012 to 12/31/2012 Medium or Pathway Type and Total Lower Limit of All Indicator Location with Highest Annual Mean Control Locations Number of Nonroutine sampled (Unit of Number of Analysis Detection Locations Mean Name, Distance Mean Mean (Range) Reported Measurement) Performed (LLD) (Range) and Direction (Range) Measurements Monthly Drinking Water Analysis -

Table 9A (pCi/I)

Ba-140 25 15 3.05 (1/13) Camp Pendleton 3.05 (1/12) 2.13 (3/12)

(3.05 - 3.05) 2.2 Mi. NNW (3.05 - 3.05) (1.42 - 3.31)

Co-58 25 15 <LLD (13/13) Oceanside (Control) 0.97 (1/12) 0.97 (1/12) 15.6 Mi. SE (0.97- 0.97) (0.97- 0.97)

Co-60 25 15 <LLD (13/13) Oceanside (Control) 2.38 (2/12) 2.38 (2/12) 15.6 Mi. SE (1.72 - 3.04) (1.72 - 3.04)

Cs-1 34 25 15 1.24 (2/13) Camp Pendleton 1.24 (2/12) <LLD (0/12)

(0.99 - 1.48) 2.2 Mi. NNW (0.99- 1.48) (-)

Cs-1 37 25 18 <LLD (13/13) Oceanside (Control) 1.65 (1/12) 1.65 (1/12) 15.6 Mi. SE (1.65 - 1.65) (1.65 - 1.65)

Fe-59 25 30 3.27 (1/13) Camp Pendleton 3.27 (1/12) 2.29 (2/12)

(3.27 - 3.27) 2.2 Mi. NNW (3.27 - 3.27) (2.06 - 2.52)

Gross Beta 20 4 2.07 (7/10) Oceanside (Control) 2.88 (9/10) 2.88 (9/10)

(1.83 - 2.30) 15.6 Mi. SE (2.14 - 3.65) (2.14 - 3.65)

H-3 25 3000 302.00 (1/13) Camp Pendleton 302.00 (1/12) <LLD (12/12)

(302.00 - 302.00) 2.2 Mi. NNW (302.00 - 302.00) 1-131 25 15 3.90 (1/13) Camp Pendleton 3.90 (1/12) 2.18 (1/12)

(3.90 - 3.90) 2.2 Mi. NNW (3.90 - 3.90) (2.18-2.18)

K-40 25 32.00 (2/13) Camp Pendleton 32.00 (2/12) 27.45 (2/12)

(28.30 - 35.70) 2.2 Mi. NNW (28.30 - 35.70) (27.10-27.80)

La-140 25 15 3.05 (1/13) Camp Pendleton 3.05 (1/12) 2.13 (3/12)

(3.05 - 3.05) 2.2 Mi. NNW (3.05 - 3.05) (1.42 - 3.31)

Mn-54 25 15 <LLD (13/13) All results <LLD <LLD (1/1) <LLD (12/12)

Nb-95 25 15 2.17 (8/13) Camp Pendleton 2.28 (7/12) 2.10 (3/12) 0 (1.37 - 3.26) 2.2 Mi. NNW (1.41 - 3.26) (1.35 - 2.93)

Zn-65 25 30 6.27 (1/13) Camp Pendleton 6.27 (1/12) 2.03 (1/12) 0 (6.27 - 6.27) 2.2 Mi. NNW 6.27-6.27) (2.03 - 2.03)

Zr-95 25 15 2.52 (1/13) Oceanside (Control) 2.53 (2/12) 2.53 (2/12) 0 (2.52 - 2.52) 15.6 Mi. SE (2.11 - 2.94) (2.11 - 2.94)

During 2012 gross beta was confirmed above the a posterioriMDC in some drinking water samples. Gross beta is attributable to naturally occurring radionuclides e.g. K-40. All the other analysis results were less than detectable for SONGS related radionuclides.

This table is a statistical summary of the analysis results confirmed above the a posteriori MDC in 2012 (Gross Beta) as well as those radionuclides listed in the ODCM.

Starting in October 2006 San Clemente drinking water was sampled and analyzed as a courtesy to the City of San Clemente. This table includes the City of San Clemente drinking water analysis results.

41

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

SAN ONOFRE NUCLEAR GENERATING STATION DOCKET NOS. 50-206, 50-361, 50-362 SAN DIEGO COUNTY, CALIFORNIA Reporting Period: 1/11/2012 to 12/31/2012 Medium or Pathway Type and Total Lower Limit All Indicator Location with Highest Annual Mean Control Locations Number of Nonroutine sampled (Unit of Number of Analysis of Detection Locations Mean Name, Distance Mean Mean (Range) Reported Measurement) Performed (LLD) (Range) and Direction (Range) Measurements Semi-annual Shoreline Sediment Gamma Spectral Analysis - Table 10 (pCi/g)

Cs-134 8 0.15 0.0485 (5/6) San Onofre State Beach 0.0723 (2/2) 0.0569 (2/2) 0 (0.0301 - 0.11) 3.5 Mi. SE (0.0375 - 0.11) (0.0321 - 0.0817)

Cs-137 8 0.18 <LLD (6/6) All results <LLD <LLD (2/2) <LLD (2/2) 0

(-)

K-40 8 13.96 (6/6) San Onofre Surfing Beach 20.10 (2/2) 19.45 (2/2) 0 (7.52 - 20.40) 0.8 Mi. WNW (19.80 - 20.40) (16.40 - 22.50)

Th-228 8 0.62 (6/6) Newport Beach North End 1.01 (2/2) 1.01 (2/2) 0 (0.20- 1.16) 29.2 Mi. NW (0.49- 1.53) (0.49- 1.53)

During 2012 naturally occurring Ac-228, Bi-214, Pb-212, Pb-214, Ra-226, Ra-228, Th-230, Th-232, TI-208, U-234.Th-228 and K-40 were detected above the a posteriori MDC in most shoreline sediment samples.

The term "< LLD," used above, indicates that all analysis results were less than the critical level (1.64 x one sigma). The critical level is used to determine if a bias exists in the database and is not used to determine if a particular sample result should be considered other than background. The numerical values listed in this table for Cs-137 are those values above the critical level and do not indicate that Cs-137 was detected in any samples.

This table is a statistical summary of the analysis results confirmed above the a posterioriMDC in 2012 (K-40 and Th-228) as well as those radionuclides listed in the ODCM 42

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

SAN ONOFRE NUCLEAR GENERATING STATION DOCKET NOS. 50-206, 50-361, 50-362 SAN DIEGO COUNTY, CALIFORNIA Reporting Period: 1/1/2012 to 12131/2012 Medium or Pathway Type and Total Lower Limit of All Indicator Location with Highest Annual Mean Control Locations Number of Nonroutine sampled (Unit of Number of Analysis Detection Locations Mean Name, Distance Mean Contration Reported Measurement) Performed (LLD) (Range) and Direction (Range) Measurements Deer Meat Analysis -

Table 10A (pCi/I)

C-137 18 .011 (1/4) Camp Pendleton .011 (1/4) <LLD 0 0.5 Mi SE One deer muscle / bone sample was confirmed above the a posteriori MDC. All samples contained naturally occurring K-40. Cs-137 is attributable to residual weapons testing fallout.

43

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

SAN ONOFRE NUCLEAR GENERATING STATION DOCKET NOS. 50-206, 50-361, 50-362 SAN DIEGO COUNTY, CALIFORNIA Reporting Period: 1/1/2012 to 12131/2012 Medium or Pathway Type and Total Lower Limit All Indicator Location with Highest Annual Mean Control Locations Number of Nonroutine sampled (Unit of Number of Analysis of Detection Locations Mean Name, Distance Mean Reported Measurement) Performed (LLD) (Range) - and Direction (Range) Mean (Range) Measurements Semi-Annual Ocean Bottom Sediment Gamma Spectral Analysis - Table 11 (pCi/g)

Cs-134 14 0.15 0.0621 (7/12) (F) SONGS Upcoast 0.0751 (2/2) 0.0296 (1/2) 0 (0.0410 - 0.0843) 0.9 Mi. WSW (0.0658 - 0.0843) (0.0296 - 0.0296)

Cs-137 14 0.18 0.0413 (1/12) (F) SONGS Upcoast 0.0413 (1/2) <LLD (0/2) 0 (0.0413 - 0.0413) 0.9 Mi. WSW (0.0413 - 0. 0413) (-)

K-40 14 15.97 (12/12) (E) Laguna Beach 19.20 (2/2) 19.20 (2/2) 0 (14.00 - 20.80) 18.2 Mi. NW (18.90 - 19.50) (18.90 - 19.50)

Th-228 14 0.87 (12/12) (F) SONGS Upcoast 1.46 (2/2) 0.40 (2/2) 0 (0.25 - 1.76) 0.9 Mi. WSW (1.15- 1.76) (0.29 - 0.51)

During 2012 naturally occurring Ac-228, Bi-214, Pb-212, Pb-214, Ra-226, Ra-228, Th-230, Th-232, TI-208, U-234.Th-228 and K-40 were detected above the a posterioriMDC in most shoreline sediment samples. Cs-1 37 is attributable to residual weapons testing fallout.

The term "< LLD," used above, indicates that all analysis results were less than the critical level (1.64 x one sigma). The critical level is used to determine if a bias exists in the database and is not used to determine if a particular sample result should be considered other than background. The numerical values listed in this table for Cs-137 are those values above the critical level and do not indicate that Cs-1 37 was detected in any samples.

This table is a statistical summary of the analysis results confirmed above the a posterioriMDC in 2012 (K-40 and Th-228) as well as those radionuclides listed in the ODCM 44

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

SAN ONOFRE NUCLEAR GENERATING STATION DOCKET NOS. 50-206, 50-361, 50-362 SAN DIEGO COUNTY, CALIFORNIA Reporting Period: 1/1/2012 to 12/31/2012 Medium or Pathway Type and Total Lower Limit All Indicator Locations Location with Highest Annual Mean Control Locations Number of Nonroutine sampled (Unit of Number of Analysis of Detection Mean (Range) Name, Distance Mean Mean (Range) Reported Measurement) Performed (LLD) and Direction (Range) Measurements Semi-Annual Non-Migratory Marine Animals (Flesh) Analysis - Table 12A (pCi/g)

Black Perch Co-58 5 0.13 < LLD (0/3) All results <LLD " LLD (0/2) < LLD (0/2)

(-) (-) (-)

Black Perch Co-60 5 0.13 < LLD (0/3) All results <LLD < LLD (0/2) " LLD (0/2)

(-) (-) (-)

Black Perch Cs-1 34 5 0.13 < LLD (0/3) < LLD (0/2) < LLD (0/2)

All results <LLD

(-) (-) (-)

Black Perch Cs-137 5 0.15 0.0030 (1/3) (C) Laguna Beach 0.0043 (1/2) 0.0043 (1/2)

(0.0030 - 0.0030) 18.2 Mi. NW (0.0043 - 0.0043) (0.0043 - 0.0043)

Black Perch Fe-59 5 0.26 <LLD (0/3) All results <LLD < LLD (0/2) < LLD (0/2)

(-) (-) (-)

Black Perch K-40 5 3.28 (3/3) (A) Unit 1 Outfall 3.30 (2/2) 3.27 (2/2)

(3.10 - 3.49) 0.9 Mi. WSW (3.10 - 3.49) (3.23- 3.31)

Black Perch Mn-54 5 0.13 <LLD (0/3) All results <LLD < LLD (0/2) <LLD (0/2)

(-) (-) (-)

Black Perch Zn-65 5 0.26 < LLD (0/3) All results <LLD < LLD (0/1) <LLD (0/2)

(-) (-) (-)

California Mussel Co-58 6 0.13 <LLD (0/4) < LLD (0/2) < LLD (0/2)

All results <LLD

(-) (-) (-)

California Mussel Co-60 6 0.13 0.0032 (1/4) (A) Unit 1 Outfall 0.0032 (1/2) 0.0027 (2/2)

(0.0032 - 0.0032) 0.9 Mi. WSW (0.0032 - 0.0032) (0.0024 - 0.0030)

California Mussel Cs- 134 6 0.13 <LLD (0/4) All results <LLD < LLD (0/2) <LLD (0/2)

(-) (-) (-)

California Mussel Cs-137 6 0.15 0.0034 (1/4) (A) Unit 1 Outfall 0.0034 (1/2) 0.0015 (1/2)

(0.0034 - 0.0034) 0.9 Mi. WSW (0.0034 - 0.0034) (0.0015 - 0.0015)

California Mussel Fe-59 6 0.26 <LLD (0/4) (C) Laguna Beach 0.0038 (1/2) 0.0038 (1/2)

(-) 18.2 Mi. NW (0.0038 - 0.0038) (0.0038 - 0.0038) 2.18 (4/4) 2.29 (2/2)

California Mussel K-40 6 (A) Unit 1 Outfall 1.93 (2/2)

(1.99 - 2.44) 0.9 Mi. WSW (2.14 - 2.44) (1.81 - 2.05)

Kelp Bass Co-58 0.13 <LLD (0/1) All results <LLD < LLD (0/1) " LLD (0/0)

(-) (-) (-)

Kelp Bass Co-60 0.13 <LLD (0/1) < LLD (0/1) < LLD (0/0)

All results <LLD

(-) (-) (-)

45

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

SAN ONOFRE NUCLEAR GENERATING STATION DOCKET NOS. 50-206, 50-361, 50-362 SAN DIEGO COUNTY, CALIFORNIA Reporting Period: 1/1/2012 to 12/31/2012 Medium or Pathway Type and Total Lower Limit All Indicator Locations Location with Highest Annual Mean Control Locations Number of Nonroutine sampled (Unit of Number of Analysis of Detection Mean (Range) Name, Distance Mean Mean (Range) Reported Measurement) Performed (LLD) and Direction (Range) Measurements Semi-Annual Non-Migratory Marine Animals (Flesh) Analysis - Table 12A (pCi/g)

Black Perch Co-58 5 0.13 < LLD (0/3) (C) Laguna Beach 0.0040 (1/2) 0.0040 (1/2) 0

(-) 18.2 Mi. NW (0.0040 - 0.0040) (0.0040 - 0.0040)

Black Perch Co-60 5 0.13 < LLD (0/3) All results <LLD < LLD (0/1) < LLD (0/2) 0

(-) (-) (-)

Kelp Bass Cs-1 34 1 0.13 <LLD (0/1) All results <LLD < LLD (0/1) " LLD (0/0)

(-) (-) (-)

Kelp Bass Cs-137 1 0.15 <LLD (0/1) All results <LLD < LLD (0/1) " LLD (0/0)

(-) (-) (-)

Kelp Bass Fe-59 1 0.26 < LLD (0/1) < LLD (0/1) " LLD (0/0)

All results <LLD

(-) (-) (-

Kelp Bass K-40 1 3.58 (1/1) (A) Unit 1 Outfall 3.58 (1/1) < LLD (0/0)

(3.58 - 3.58) 0.9 Mi. WSW (3.58 - 3.58) H()

Kelp Bass Mn-54 1 0.13 < LLD (0/1) All results <LLD < LLD (0/1) <LLD (0/0)

(-) (-)

Kelp Bass Zn-65 1 0.26 <LLD (0/1) All results <LLD < LLD (0/1) < LLD (0/0)

(-) (-)

Sheephead Co-58 4 0.13 <LLD (0/2) All results <LLD " LLD (0/1)

(-) (-) " LLD (0/2)

Sheephead Co-60 4 0.13 <LLD (0/2) All results <LLD <0LLD (0/1) < LLD (0/2)

(-) (-) "<LLD (0/2)

Sheephead Cs-1 34 4 0.13 <LLD (0/2) All results <LLD < LLD (0/1)

(-) (-)

Sheephead Cs-137 4 0.15 0.0051 (2/2) (A) Unit 1 Outfall 0.0059 (1/1) 0.0044 (2/2)

(0.0044 - 0.0059) 0.9 Mi. WSW (0.0059 - 0.0059) (0.0031 - 0.0057)

Sheephead Fe-59 4 0.26 < LLD (0/2) < LLD (0/1) < LLD (0/2)

(-) (-) (-)

Sheephead K-40 4 3.73 (2/2) (B) Units 2 &3 Outfall 4.02 (1/1) 3.69 (2/2)

(3.44- 4.02) 1.5 Mi. SSW (4.02 - 4.02) (3.67 - 3.70)

Sheephead Mn-54 4 0.13 < LLD (0/2) All results <LLD < LLD (0/2) < LLD (0/2)

(-) (-) (-)

<LLD (0/2) < LLD (0/1) <LLD (0/2)

Sheephead Zn-65 4 0.26 All results <LLD

(-) (-) (-)

0.13 < LLD (0/2) < LLD (0/2) <LLD (0/0)

Sand Bass Co-58 2 All results <LLD

(-) (-) (-)

46

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

SAN ONOFRE NUCLEAR GENERATING STATION DOCKET NOS. 50-206, 50-361, 50-362 SAN DIEGO COUNTY, CALIFORNIA Reporting Period: 1/11/2012 to 12/31/2012 Medium or Pathway Type and Total Lower Limit All Indicator Locations Location with Highest Annual Mean Control Locations Number of Nonroutine sampled (Unit of Number of Analysis of Detection Mean (Range) Name, Distance Mean Mean (Range) Reported Measurement) Performed (LLD) and Direction (Range) Measurements Semi-Annual Non-Migratory Marine Animals (Flesh) Analysis - Table 12A (pCi/g)

Sand Bass Co-60 2 0.13 0.0079 (1/2) (B) Units 2 and 3 Outfall 0.0079 (1/2) < LLD (0/0)

(0.0079 - 0.0079) 1.5 Mi. SSW (0.0079 - 0.0079) (-)

Sand Bass Cs-134 2 0.13 0.0048 (1/2) (B) Units 2 and 3 Outfall 0.0048 (1/2) " LLD (0/0)

(0.0048 - 0.0048) 1.5 Mi. SSW (0.0048 - 0.0048) (-)

Sand Bass Cs-137 2 0.15 0.0038 (1/2) (B) Units 2 and 3 Outfall 0.0038 (1/2) " LLD (0/0)

(0.0038 - 0.0038) 1.5 Mi. SSW (0.0038 - 0.0038) (-)

Sand Bass Fe-59 0.26 <LLD (0/2) All results <LLD < LLD (0/2) < LLD (0/0)

(-) (-)

H-)

Sand Bass K-40 3.87 (2/2) (B) Units 2 and 3 Outfall 3.87 (2/2) < LLD (0/0)

(3.78 - 3.96) 1.5 Mi. SSW (3.78 - 3.96) (-)

Sand Bass Mn-54 0.13 <LLD (0/2) All results <LLD <LLD (0/2) " LLD (0/0)

(-) (-)

(-)

Zn-65 0.26 <LLD (0/2) < LLD (0/2) < LLD (0/0)

Sand Bass All results <LLD

(-) (-) (-)

0.13 <LLD (0/4) < LLD (0/2) < LLD (0/2)

Spiny Lobster Co-58 All results <LLD

(-) (-) (-)

0.13 0.0047 (1/4) (B) Units 2 and 3 Outfall 0.0047 (1/2) < LLD (0/2)

Spiny Lobster Co-60 (0.0047 - 0.0047) 1.5 Mi. SSW (0.0047 - 0.0047) (-)

Spiny Lobster Cs-134 0.13 <LLD (0/4) (C) Laguna Beach 0.0022 (1/2) 0.0022 (1/2)

(-) 18.2 Mi. NW (0.0022 - 0.0022) (0.0022 - 0.0022)

Spiny Lobster Cs-137 0.15 0.0035 (1/4) (B) Units 2 and 3 Outfall 0.0035 (1/2) 0.0033 (1/2)

(0.0035 - 0.035) 1.5 Mi. SSW (0.0035 - 0.0035) (0.0033 - 0.0033)

Spiny Lobster Fe-59 0.26 <LLD (0/4) All results <LLD < LLD (0/2) < LLD (0/2)

(-)

(-) (-)

K-40 3.39 (4/4) (C) Laguna Beach 3.76 (2/2) 3.76 (2/2)

Spiny Lobster (3.13 - 3.57) 18.2 Mi. NW (3.74 - 3.78) (3.74 - 3.78)

Mn-54 0.13 <LLD (0/4) < LLD (0/2) " LLD (0/2)

Spiny Lobster All results <LLD

(-) (-) (-)

<LLD (0/4) < LLD (0/2) < LLD (0/2)

Spiny Lobster Zn-65 0.26 All results <LLD

(-) (-) (-)

47

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

SAN ONOFRE NUCLEAR GENERATING STATION DOCKET NOS. 50-206, 50-361, 50-362 SAN DIEGO COUNTY, CALIFORNIA Reporting Period: 1/11/2012 to 1213112012

<LLD results are less than the critical level 1.64 sigma.

Medium or Pathway Type and Total Lower Limit All Indicator Locations Location with Highest Annual Mean Control Locations umber of Nonroutine sampled (Unit of Number of Analysis of Detection Mean (Range) Name, Distance Mean Mean (Range) Reporte Measurement) Performed (LLD) and Direction (Range) Measurements Semi-Annual Non-Migratory Marine Animals (Flesh) Analysis - Table 12A (pCi/g)

California Mussel Co-58 6 0.13 <LLD (0/4) All results <LLD " LLD (0/2) < LLD (0/2)

(-) (-) (-)

California Mussel Co-60 6 0.13 <LLD (0/4) All results <LLD " LLD (0/2) < LLD (0/2)

(-) (-) (-)

California Mussel Cs-134 6 0.13 <LLD (0/4) All results <LLD < LLD (0/2) < LLD (0/2)

(-) (-) (-)

California Mussel Cs-137 6 0.15 <LLD (0/4) < LLD < LLD (0/2)

All results <LLD (0/2)

(-)

(-)

(-)

California Mussel Fe-59 6 0.26 <LLD (0/4) < LLD (0/2)

All results <LLD < LLD (0/2)

(-) (-) (-)

California Mussel K-40 6 2.29 (4/4) (A) Unit 1 Outfall 2.36 (2/2) 2.14 (2/2)

(2.10- 2.61) 0.9 Mi. WSW (2.10 -2.61) (2.10-2.18)

California Mussel Mn-54 6 0.13 <LLD (0/4) All results <LLD < LLD (0/2) < LLD (0/2)

(-) (-) (-)

California Mussel Zn-65 6 0.26 <LLD (0/4) All results <LLD < LLD (0/2) < LLD (0/2)

(-) (-)

(-)

Kelp Bass Co-58 2 0.13 <LLD (0/2) All results <LLD <LLD (0/2) " LLD (0/0)

(-) (-) "-)

Kelp Bass Co-60 2 0.13 <LLD (0/2) All results <LLD < LLD (0/2) < LLD (0/0)

(-) (-) (-)

Kelp Bass Cs-134 2 0.13 <LLD (0/2) < LLD (0/2)

All results <LLD < LLD (0/0)

(-)

(-)

(-)

Kelp Bass Cs-137 2 0.15 0.0135 (1/2) (A) Unit 1 Outfall 0.0135 (1/2)

< LLD (0/0)

(0.0135 -0.01 35) 0.9 Mi. WSW (0.0135 - 0.0135) (-)

Kelp Bass Fe-59 2 0.26 < LLD (0/2) < LLD (0/2) < LLD (0/0)

All results <LLD

(-) (-) (-)

Kelp Bass K-40 2 3.82 (2/2) (A) Unit 1 Outfall 3.82 (2/2) < LLD (0/0)

(3.69 - 3.94) 0.9 Mi. WSW (3.69 - 3.94) (-)

Kelp Bass Mn-54 2 0.13 <LLD (0/2) < LLD (0/2) < LLD (0/0)

All results <LLD

(-)

(-)

(-)

Kelp Bass Zn-65 2 0.26

<LLD (0/2) ...(0/2) < LLD (0/0)

(-) (-) (-)

48

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

SAN ONOFRE NUCLEAR GENERATING STATION DOCKET NOS. 50-206, 50-361, 50-362 SAN DIEGO COUNTY, CALIFORNIA Reporting Period: 1/1/2012 to 12/31/2012

<LLD results are less than the critical level 1.64 sigma.

Medium or Pathway Type and Total Lower Limit All Indicator Locations Location with Highest Annual Mean Number of Nonroutine Control Locations Reported sampled (Unit of Number of Analysis of IDetection Mean (Range) Name, Distance Mean Mean (Range) Measurements Measurement) Performed (LLD) and Direction (Range)

Semi-Annual Non-Migratory Marine Animals (Flesh) Analysis - Table 12A (pCi/g)

Sheephead Co-58 4 0.13 < LLD (0/2) All results <LLD < LLD (0/2) <LLD (0/2)

(-) (-) (-)

Sheephead Co-60 4 0.13 <LLD (0/2) All results <LLD < LLD (0/2) < LLD (0/2)

(-) (-) (-)

Sheephead Cs-134 4 0.13 0.0090 (1/2) (B) Units 2 and 3 Outfall 0.0090 (1/2) < LLD (0/2)

(0.0090 - 0.0090) 1.5 Mi. SSW (0.0090 - 0.0090) (-)

Sheephead Cs-137 4 0.15 <LLD (0/2) " LLD (0/2) < LLD (0/2)

All results <LLD

(-) (-) (-)

Sheephead Fe-59 4 0.26 <LLD (0/2) < LLD (0/2) < LLD (0/2)

All results <LLD

(-) (-) (-)

Sheephead K-40 4 3.51 (2/2) (C) Laguna Beach 3.54 (2/2) 3.54 (2/2)

(3.48 - 3.54) 18.2 Mi. NW (3.43 - 3.65) (3.43 - 3.65)

Sheephead Mn-54 4 0.13 <LLD (0/2) 0.0035 (1/2) 0.0035 (1/2)

(C) Laguna Beach

(-) 18.2 Mi. NW (0.0035 - 0.0035) (0.0035 - 0.0035)

Sheephead Zn-65 4 0.26 <LLD (0/2) All results <LLD < LLD (0/2) < LLD (0/2)

(-) (-) (-)

Spiny Lobster Co-58 6 0.13 <LLD (0/4) All results <LLD <LLD (0/2) " LLD (0/2)

(-) (-) (-)

Spiny Lobster Co-60 6 0.13 <LLD (0/4) < LLD (0/2) " LLD (0/2)

All results <LLD

(-) (-) (-)

Spiny Lobster Cs-134 6 0.13 0.0066 (1/4) (B) Units 2 and 3 Outfall 0.0066 (1/2) < LLD (0/2)

(0.0066 - 0.0066) 1.5Mi. SSW (0.0066 - 0.0066) (-)

Spiny Lobster Cs-137 6 0.15 <LLD (0/4) (C) Laguna Beach 0.0036 (1/2) 0.0036 (1/2)

(-) 18.2 Mi. NW (0.0036 - 0.0036) (0.0036 - 0.0036)

Spiny Lobster Fe-59 6 0.26 <LLD (0/4) All results <LLD < LLD (0/2) < LLD (0/2)

(-) (-) (-)

Spiny Lobster K-40 6 3.26 (4/4) (C) Laguna Beach 3.59 (2/2) 3.59 (2/2)

(2.98 - 3.71) 18.2 Mi. NW (3.32 - 3.85) (3.32 - 3.85)

Spiny Lobster Mn-54 6 0.13 <LLD (0/4) All results <LLD < LLD (0/2) < LLD (0/2)

(-) (-) (-)

Spiny Lobster Zn-65 6 0.26 <LLD (0/4) < LLD (0/2) < LLD (0/2)

All results <LLD

(-) (-) (-)

<LLD results are less than the critical level 1.64 sigma.

49

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

SAN ONOFRE NUCLEAR GENERATING STATION DOCKET NOS. 50-206, 50-361, 50-362 SAN DIEGO COUNTY, CALIFORNIA Reporting Period: 1/1/2012 to 12131/2012 Medium or Pathway Type and Total Lower Limit Location with Highest Annual Mean Number of Nonroutine sampled (Unit of Number of Analysis of Detection an Loans Name, Distance Mean Contr ation Reported Measurement) Performed (LLD) Mean (Range) and Direction (Range)Mean (Range)

Semi-Annual Local Crops Gamma Spectral Analysis - Table 13A (pCi/g)

Lettuce Cs-134 2 0.06 < LLD (0/0) All results <LLD < LLD (0/2) < LLD (0/2) 0

(-) (-) (-)

Lettuce Cs-137 2 0.08 < LLD (0/0) All results <LLD < LLD (0/2) < LLD (0/2) 0

(-) (-) (-)

Lettuce 1-131 2 0.06 < LLD (0/0) < LLD (0/2) < LLD (0/2) 0 All results <LLD

(-) (-) (-)

Lettuce K-40 2 < LLD (0/0) South East of Oceanside 1.99 (2/2) 1.99 (2/2) 0

(-) 22 Mi. SE (0.83 - 3.15) (0.83 - 3.15)

Sorrel Be-7 4 0.0975 (2/3) SONGS Garden 0.0975 (2/3) < LLD (0/1) 0 (0.0769 - 0.12) 0.4 Mi. NNW (0.0769 - 0.12) (-)

Sorrel Cs-1 34 4 0.06 <LLD (0/3) South East of Oceanside 0.0051 (1/1) 0.0051 (1/1) 0

(-) 22 Mi. SE (0.0051 - 0.0051) (0.0051 - 0.0051)

Sorrel Cs-1 37 4 0.08 " LLD (0/3) All results <LLD < LLD (0/3) < LLD (0/1) 0

(-) (-) (-)

Sorrel 1-131 4 0.06 < LLD (0/3) All results <LLD < LLD (0/1) < LLD (0/1) 0

(-) (-) (-)

Sorrel K-40 4 3.65 (3/3) 3.92 (1/1) 3.92 (1/1) 0 South East of Oceanside (2.23 - 4.43) (3.92 - 3.92) (3.92 - 3.92) 22 Mi. SE Tomato Cs-134 6 0.06 < LLD (0/3) South East of Oceanside 0.0020 (1/3) 0.0020 (1/3) 0

(-) 22 Mi. SE (0.0020 - 0.0020) (0.0020 - 0.0020)

Tomato Cs-137 6 0.08 < LLD (0/3) South East of Oceanside 0.0067 (1/3) 0.0067 (1/3) 0

(-) 22 Mi. SE (0.0067 - 0.0067) (0.0067 - 0.0067)

Tomato 1-131 6 0.06 0.0043 (1/3) SONGS Garden 0.0043 (1/3) < LLD (0/3) 0 (0.0043 - 0.0043) 0.4 Mi. NNW (0.0043 -0.0043) (-)

Tomato K-40 6 2.36 (3/3) SONGS Garden 2.36 (3/3) 1.71 (3/3) 0 (2.23 - 2.43) 0.4 Mi. NNW (2.23 - 2.43) (0.91 - 2.64)

During 2012, naturally occurring K-40 (potassium 40) was confirmed above the a posterioriMDC in all local crop samples and Be-7 (Beryllium 7) was confirmed above the a posterioriMDC in some Sorrel samples only.

The term "< LLD," used above, indicates that all analysis results were less than the critical level (1.64 x one sigma). The critical level is used to determine if a bias exists in the database and is not used to determine if a particular analysis result should be considered as other than background. The data in this table includes Cs-134, Cs-137, and 1-131 analysis results greater than the MDC attributable to fallout from the nuclear accident at Fukushima.

50

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

SAN ONOFRE NUCLEAR GENERATING STATION DOCKET NOS. 50-206, 50-361, 50-362 SAN DIEGO COUNTY, CALIFORNIA Reporting Period: 1/1/2012 to 12/31/2012 Medium or Pathway Type and Total Lower Limit All Indicator Locations Location with Highest Annual Mean Control Locations Number of Nonroutine sampled (Unit of Number of Analysis of Detection an Loans Name, Distance Mean Contration Reported Measurement) Performed (LLD) Meanand Direction (RMean (Range) Measurements Annual Soil Analysis - Depth 3" Table 14 (pCi/g)

Cs-134 5 0.15 0.0801 (4/4) Camp San Onofre 0.15 (1/1) 0.0503 (1/1)

(0.0415 - 0.15) 2.6 Mi. NE (0.15 - 0.15) (0. 0503 - 0. 0503)

Cs-137 5 0.18 0.14 (2/4) Prince of Peace Abbey 0.25 (1/1) 0.25 (1/1) 0 (0.10 - 0.18) 15 Mi. SE (0.25 - 0.25) (0.25 - 0.25)

K-40 5 17.84 (4/4) Camp San Onofre 24.30 (1/1) 3.63 (1/1) 0 (9.06 - 24.30) 2.6 Mi. NE (24.30 - 24.30) (3.63 - 3.63)

Th-228 5 0.68 (4/4) Camp San Onofre 0.85 (1/1) 0.23 (1/1) 0 (0.45 - 0.85) 2.6 Mi. NE (0.85 - 0.85) (0.23 - 0.23)

During 2012 naturally occurring K-40, Ac-228, Bi-214, Pb-212, Pb-214, Ra-226, Ra-228, Th-230, Th-232, TI-208, and U-234 were detected above the a posteriori MDC in most shoreline sediment samples.

Cs-1 37 (Cesium 137) was detected in three samples and is attributable to fallout from nuclear weapons testing and from Chernobyl.

51

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

SAN ONOFRE NUCLEAR GENERATING STATION DOCKET NOS. 50-206, 50-361, 50-362 SAN DIEGO COUNTY, CALIFORNIA Reporting Period: 1/112012 to 12/31/2012 Medium or Pathway Type and Total Lower Limit All Indicator Locations Location with Highest Annual Mean Control Locations Number of Nonroutine sampled (Unit of Number of Analysis of Detection an Loation Name, Distance Mean Con Loans Reported Measurement) Semi-Annualn Performed (LLD) Meanand Direction (Range)

(Relpe)Analysisent (Range)Measurements Semi-Annual Kelp Analysis -

Table 15 (pCi/g)

Cs-134 23 0.06 " LLD (0/8) E) Salt Creek (Control) 0.0056 (1/3) 0.0052 (2/15) 0

(-) 11 Mi. NW (0.0056 - 0.0056) (0.0049 - 0.0056)

Cs-137 23 0.08 < LLD (0/8) (E) Salt Creek (Control) 0.0046 (2/3) 0.0044 (4/15) 0

(-) 11 Mi. NW (0.0034 - 0.0059) (0.0034 - 0.0059) 1-131 23 0.06 0.0242 (8/8) Capistrano Beach Reef (G) 0.0421 (3/3) 0.0346 (15/15) 0 (0.0105 - 0.0391) 8.8 Mi. NW (0.0185 - 0.0795) (0.0112 - 0.0794)

K-40 23 11.02 (8/8) San Clemente Pier (H) 12.42 (3/3) 10.56 (15/15) 0 (8.20 - 13.50) 5.8 Mi. NW (7.75 - 18.40) (5.59 - 18.40)

During 2012, naturally occurring K-40 (23 of 23) and Th-234 (18 of 23) were confirmed above the a posterioriMDC in kelp samples. 1-131 (iodine 131) was also confirmed above the a posteriori MDC in all 15 control kelp samples. 1-131 is known to be a constituent of sewage plant discharges due to medically administered 1-131. The activity of 1-131 in the control sample (Salt Creek - about 11 miles up coast from SONGS) has historically been higher than the 1-131 activity in kelp closer to SONGS.

Additional samples were taken in the first half of 2012 in May to coincide with the sample date for the San Juan Outfall to identify the source of 1-131 found in kelp in the control sites. In May 2012 Barn Kelp Bed was not available for sampling.

52

APPENDIX C

SUMMARY

OF QUALITY CONTROL PROGRAMS 53

All REMP samples are collected, shipped, and analyzed in accordance with NRC Regulatory Guide 4.15. Marine radiological environmental samples are collected by a vendor, MBC Environmental, per the vendors Quality Assurance manual. REMP sample analysis is performed by the Contracted Environmental Analysis Laboratory (CEAL) in accordance with the Laboratory Quality Assurance Plan. During 2012 the CEAL was General Engineering Laboratory (GEL). The CEAL for REMP TLDs was Stanford Dosimetry.

INTERLABORATORY CROSS-CHECK PROGRAM:

The CEAL participates in a number of independent cross check programs, including the National Institute of Standards and Technology (NIST) and Analytics cross-check programs. A summary of the cross check data is included in Table C-1.

One discrepancy was noted in the CEAL's fourth quarter cross check program report. The ratio for Sr-90 in milk did not meet the + 25% criteria. GEL initiated CR 130206-759 and determined statistical limits for this particular type of sample cannot meet their typical + 25% criteria.

Proficiency testing data from 2007 to 2012 were reviewed and a new statistical criteria of- 50%

- 125% was assigned for this sample medium. This does not affect the current SONGS REMP as there is no milk production for human consumption within 5 miles.

The CEAL's performance meets the criteria described in Reg. Guide 4.15.

54

QUARTERLY DUPLICATE TLDs SONGS deployed a duplicate TLD package in the same location and canister as TLD 66. The quarterly dose measured by these separate TLD packages is statistically equal.

DUPLICATE TLD DATA COMPARISON 1ST QUARTER 2 ND QUARTER 3 RD QUARTER 4 QUARTER TLD 66 16.2 +/- 1.22 12.9 +/- 0.91 15.5 +/- 0.58 12.3 +/- 0.69 TLD 200 16.1 +/- 1.26 13.3 +/- 0.66 15.9 +/- 0.86 12.3 +/- 0.94 0 Data are reported as mR per standard quarter +/- I sigma ANNUAL DUPLICATE TLDs An annual duplicate TLD package is collocated with TLD 67.

TLD 67 TLD 201 (annual duplicate) average exposure in mR exposure in mR per standard quarter per standard quarter (July 2011 to July 2012) (July 2011 to July 2012) 16.4 15.8 COMPARISON OF TLD TO PIC DATA, PIC 3 PIC 4 PIC 6 PIC 8 18.7 17.1 14.8 10.1 TLD 40 TLD 61 TLD 63 TLD 65 18.7 16.0 14.5 14.7 PIC data converted to mR per standard quarter compared to the 4 th Quarter co-located 2012 TLD data.

CALIBRATION OF AIR SAMPLER VOLUME METERS The Shop Services and Instrumentation Division of SCE performs an annual calibration procedure using standards referenced to NIST on all REMP air sampler flow meters. When the flow meters are removed from service, the meter is calibrated and the calibration reports are reviewed for bias. This is an a posteriorireview of the gas meter performance to evaluate method bias and to identify possible outlier analysis results. No anomalies in post calibration occurred.

55

TABLE C-1 ANALYTICS CROSS-CHECK PROGRAM

SUMMARY

Eckert& Ziegler Analytics 1380 Seaboard Industrial Blvd.

Atlanta, Georgia 30318. U.S.A.

Tel 404-352.8677 Fax 404.352.2837 RESULTS OF ENVIRONMENTAL CROSS CHECK PROGRAM GEL LABORATORIES, LLC First Quarter 2012 (Ref. Date 15-Mar-2012)

Levan Tkavadze, Nuclear Metrologist Date The acceptable ratio is +/- 25% of the known value for Analytics.

56

TABLE C-1 ANALYTICS CROSS-CHECK PROGRAM

SUMMARY

SAMPLE ANALYSIS GEL UNCERTAINTY EZA UNCERTAINTY RATIO VALUE (1Sigma) VALUE (1Sigma) GEL:

EZA E10040 1-131 8.93E+01 pCi 4.92E+00 9.42E+01 pCi 1.57E+00 0.95 1-131 Cartridge GEL ID 297802001 E10041 Sr-89 7.94E+01 pC1iL 3.09E+00 7.99E+01 pCi/L 1.33E+00 0.99 Gamma Sr-90 1.12E+01 pCi/L 1.29E+00 1.14E+01 pCiIL 1.90E-01 0.98 Milk GEL ID 297802002 E10042 1-131 1.02E+02 pCUL 5.85E+00 9.25E+01 pCiIL 1.54E+00 1.10 Gamma Ce-141 2.64E+02 pCifL 1.22E+61 2.60E+02 pCiIL 4.34E+00 1.01 Milk Cr-51 4.46E+02 pCi/L 3.07E+01 4.36E+02 pCi/L 7.28E+00 1.02 Cs-134 1.31E+02 pCiIL 8.20E+00 1A9E+02 pCiIL 2.50E+00 0.88 GEL ID Cs-137 1.62E+02 pCi/L 7.98E+00 1.59E+02 pCi/L 2.66E+00 1.02 297802003 Co-58 1.28E+02 pCiIL &20E4+0 1.32E+02 pCi/L 2.20E+00 0.97 Mn-54 1.99E+02 pCi/L 1.20E+01 1.95E+02 pCiL 3.26E+00 1.02 Fe-59 1.96E+02 pCiIL 1.67E+41 1.68E+02 pCi/L 2.81E+00 1.17 Zn-65 3.50E+02 pCi/L 2.71E+01 3.33E+02 pCi/L 5.56E+00 1.05 Co-60 2.90E+02 pCiIL 1.35E+01 2.79E+02 pCIIL 4.65E+00 1.04 AmnQuazterl012(RdL D*. 15-Mar-2012) EZACOU 278 Tabk heroI2

'The acceptable ratio is +/- 25% of the known value for Analytics.

57

TABLE C-1 ANALYTICS CROSS-CHECK PROGRAM

SUMMARY

SAMPLE ANALYSIS GEL UNCERTAIT EZA UNCERTAINTY RATIO VALUE (1Sigma) VALUE (1Sigm) GEL:

EZA E10043 1-131 1.01E+02 pCIIL 5.72E+00 9.38E+01 pC/L 1.57E+00 1.08 Gamma Ce-141 1.91E+02 pCUiL 9.10E+00 1.84E+02 pCi/L 3.07E+00 1.04 Water Cr-51 3.34E+02 pCiIL 2.50E+01 3.09E+02 pCl/L 5.16E+00 1.08 Cs-134 9.90E+01 pCi/L 6.44E+00 1.06E+02 pCi/L 1.77E+00 0.94 GEL ED Cs-137 1.26E+02 pCi/L 6.73E+00 1.13E+02 pCIIL 1.88E+00 1.12 297802004 Co-58 9.55E+01 pCi/L 6.18E+00 9.34E+01 pCi/L 1.56E+00 1.02 Mn-54 1.49E+02 pCi/L 9.42E+00 1.38E+02 pCi/L 2.31E+00 1.08 Fe-59 1.40E+02 pCi/L 1.22E+01 1.19E+02 pCi/L 1.9E+00 1.18 Zn-65 2.58E+02 p*iL 1.89E+01 2.35E+02 pCi/L 3.93E+00 1.10 Co-60 2.14E+02 pCi/L 1.01E+01 1.97E+02 pCUiL 3.29E+00 1.09 Faut Qartw 1912 WbDaft["Uf,212) F2ACWtVm Tabe P*a2 oi2

'The acceptable ratio is +/- 25% of the known value for Analytics.

58

TABLE C-1 ANALYTICS CROSS-CHECK PROGRAM

SUMMARY

Fx 4 Eckert& Ziegler 1380 Seaboard Industrial Blvd.

Atlanta, Georgia 30318 U.S.A.

Tel 404.352-8677 Fax 404,3522837 RESULTS OF ENVIRONMENTAL CROSS CHECK PROGRAM GEL LABORATORIES, LLC Second Quarter 2012 (Ref. Date 14-Jun-2012)

Lv Ae 1o2 Levan Tkavadze, Nuclear Metrologist Date

'The acceptable ratio is +/- 25% of the known value for Analytics.

59

TABLE C-1 ANALYTICS CROSS-CHECK PROGRAM

SUMMARY

SAMPLE ANALYSIS GEL UNCERTAINTY EZA UNCERTAIT RATIO VALUE (1Sigma) VALUE (1Sigma) GEL:

EZA E10175 1-131 9.67E+01 pCi 4.65E+00 9.72E+01 pCi 1.62E+00 0.99 1-131 Cartridge GEL ED 30608000 E10176 Sr-89 1.11E+02 pCi/L 4.49E+00 9.98E+01 pCi/L L67E+00 1.11 Sr49/90 w/iaP Sr-90 1.06E+01 pCIIL 1.26E+00 127E+01 pCi/L 2.13E.01 0.83 Milk GEL ED 3060M E10177 1-131 9.94E+01 pCi/L 5.65E+00 9.97E+01 pCi/L 1.66E+00 1.00 Guam Ce-141 &62E401 pCi/L 4.79E+00 &22E+01 pCi/L 137E+00 1.05 Milk Cr-51 3.76E+02 pCiL 3.03E+01 4.02E+02 pCi/L 6.71E+00 0.94 Cs-134 1.63E+02 pCi/L 1.01E+01 1.74E+02 pCi/L 2.91E+00 0.93 Cs-137 2.08E+02 pCi/L 1.01E+01 2.12E+02 pCi/L 3.54E+00 0.98 Co-58 8.94E+01 pCi/L 6.00E+00 9.23E+01 pCi/L 1.54E+00 0.97 GEL ID M%-54 127E+02 pci/L &40E+00 L32E+02 pCi/L 2.21E+00 0.96 306080003 Fe-59 1.46E+02 pCi/L 1.35E+01 1.28E+02 pCi/L 2,13E+00 1.14 Zn-65 2.22E+02 pCi/L 1.85E+01 1.99E+02 pCi/L 3.33E+00 1.11 Co-60 3.52E+02 pCi/L l19E+01 3.55E+02 pCi/L 5.93E+00 0.99

• maf = mixed activation/fission products SecudQuauterNU dDaeht 14JWn2012) E7ACusM Tablia 1otf2 The acceptable ratio is +/- 25% of the known value for Analytics.

60

TABLE C-1 ANALYTICS CROSS-CHECK PROGRAM

SUMMARY

SAMPLE ANALYSIS GEL UNCERTAINTY EZA UNCERTAINTY RATIO VALUE (1 Sigma) VALUE (I Sigma) GEL:

EZA E10178 1-131 9.94E+01 pCi/L 5.94E+00 9.94E+01 pCi/L 1.66E+00 1.00 Gamma Ce-141 1.31E+02 pCi/L 7.89E+l00 1.12E+02 pCi/L 1.87E+00 1.17 Water Cr-51 5.51E+02 pCiIL 3.81E+01 5.48E+02 pCiIL 9.14E+00 1.01 Cs-134 2.22E A2 pCi/L 1.38E+01 2.38E+02 pCiIL 3.97E+00 0.93 Cs-137 2.91E+02 pCi/L 1.47E+01 2.89E+02 pCi/L 4.82E+00 1.01 Co-58 1.35E+02 pCiIL 8.93E+00 1.26E+02 pCi/L 2.10E+00 1.07 GEL ID Mn-54 1.83E+02 pCiIL 1.19E+01 1.80E+02 pCi/L 3.01E+00 1.02 306080004 Fe-59 2.OOE+02 pCi/L 1.78E+01 1.74E+02 pCi/L 2.91E+00 1.15 Zn-65 2.94E+02 pCi/L 2.51E+01 2.72E+02 pCi/L 4.54E+00 1.08 Co-60 5.04E+02 pCi/L 2.19E+01 4.84E+02 pCiIL 8.09E+00 1.04 Second Quarter 2012 (Ref. Date 14-Jun-2012) EZA Cuati 278 Table Page 2of 2 The acceptable ratio is +/- 25% of the known value for Analytics.

61

TABLE C-1 ANALYTICS CROSS-CHECK PROGRAM

SUMMARY

i Eckert &Ziegler Analytics 1380 Seaboard Industrial Blvd.

Atlanta, Georgia 30318 U.S.A.

Tel 404-352.8677 Fax 404-352-2837 RESULTS OF ENVIRONMENTAL CROSS CHECK PROGRAM GEL LABORATORIES, LLC Third Quarter 2012 (Ref. Date 13-Sep-2012) z~Nov 12 Levan Tkavadze, Nudear Metrologist Date The acceptable ratio is +/- 25% of the known value for Analytics.

62

TABLE C-1 ANALYTICS CROSS-CHECK PROGRAM

SUMMARY

SAMPLE ANALYSIS GEL UNCERTAINTY EZA UNCERTAINTY RATIO VALUE (I Sigma) VALUE (I Sigma) GEL:

EZA E10281 1-131 1.02E+02 pCi 5.04E+00 9.64E+01 pCi 1.61E+00 1.06 1-131 Cartridge GEL ID 311318001 E10283 Sr-89 9.87E+01 pCi/L 2.41E+00 9.96E+01 pCi/L 1.66E+00 0.99 Sr-89/90 w/maf* Sr-90 1.44E+01 pCi/L 7.80E-01 1.60E+01 pCi/L 2.68E-01 0.90 Milk GEL ID 311318002 E10284 1-131 9.69E+01 pCi/L 6.06E+00 9.96E+01 pCi/L 1.66E+00 0.97 Gamma Ce-141 1.61E+02 pCi/L 8.35E+00 1.64E+02 pCi/L 2.73E+00 0.98 Milk Cr-51 2.92E+02 pCiIL 2.51E+01 2.48E+02 pCi/L 4.14E+00 1.18 Cs-134 9.85E+01 pCi/L 6.12E+00 1.08E+02 pCi/L I.IE+00 0.91 Cs-137 1.76E+02 pCi/L 8.46E+00 1.74E+02 pCi/L 2.91E+00 1.01 Co-58 9.72E+01 pCiIL 5.98E+00 1.00E+02 pCi/L 1.68E+00 0.97 GEL ID Mn-54 1.98E+02 pCi/L 1.15E+01 1.96E+02 pCiIL 3.27E+00 1.01 311318003 Fe-59 1.62E+02 pCi/L 1.35E+01 1.52E+02 pCi/L 2.53E+00 1.07 Za-65 2.08E+02 pCi/L 1.64E+01 1.92E+02 pCi/L 321E+00 1.08 Co-60 1.59E+02 pCi/L 7.97E+00 1.52E+02 pCi/L 2.53E+00 1.05

• maf =mixed activation/fission products Thid Qun& 2112 (Rdt Date13.ep.61U) EZA CWJ 271 TablPop. I ofI

'The acceptable ratio is +/- 25% of the known value for Analytics.

63

TABLE C-1 ANALYTICS CROSS-CHECK PROGRAM

SUMMARY

SAMPLE ANALYSIS GEL UNCERTAINTY EZA UNCERTAINTY RATIO VALUE (I Sigma) VALUE (1Sigma) GEL:

EZA E10285 1-131 1.10E+02 pCi/L 6.52E+00 9.99E+01 pCi/L 1.67E+00 1.10 Gamma Ce-141 2.49E-02 pCi/L 1.21E+01 2.51E+02 pCitL 4.19E+00 0.99 Water Cr-51 3.75E+02 pCi/L 2.84E+01 3.80E+02 pCi/L 6.34E+00 0.99 Cs-134 1.51E+02 pCi/L 8.74E+00 1.66E+02 pCi/L 2.77E+00 0.91 Cs-137 2.72E+02 pCi/L 1.22E+01 2.67E+02 pCi/L 4.46E+00 1.02 Co-58 1.56E402 pCiL 9.01E+00 1.54E+02 pCi/L 2.57E+00 1.01 GEL ID Mn-54 3.16E+02 pCi/L 1.76E+01 3.00E+02 pCi/L 5.01E+00 1.05 311318004 Fe-59 2.65E+02 pCi/L 2.02E+01 2.33E+02 pCIj/L 3.89E+00 1.14 Zn-65 3.20E'02 pCi/L 2.35E+01 2.95E+02 pCi/L 4.92E+00 1.09 Co-60 2.42E+02 pCi/L 1.12E+01 2.33E+02 pCi/L 3.89E+00 1.04 Third Qarttr 2012 (Ref. Date 1D-Sep2-012) EZACUU 213 Tab**e Pa o 2Z The acceptable ratio is +/- 25% of the known value for Analytics.

64

TABLE C-1 ANALYTICS CROSS-CHECK PROGRAM

SUMMARY

42 Eckert&Ziegler Analytics 1380 Seaboard Industrial Blvd.

Atlanta, Georgia 30318. U.SA Tel 404.352.8677 Fax 404-352-2837 RESULTS OF ENVIRONMENTAL CROSS CHECK PROGRAM GEL LABORATORIES, LLC Fourth Quarter 2012 (Ref. Date 06-Dec-2012) ze, N e Levan Tkavadze, Nuclear Metrologist Date MAF=0m0O2 R*v-The acceptable ratio is +/- 25% of the known value for Analytics.

65

TABLE C-1 ANALYTICS CROSS-CHECK PROGRAM

SUMMARY

SAMPLE ANALYSIS GEL UNCERTAINTY EZA UNCERTAINTY RATIO VALUE (1Sigma) VALUE (ISigma) GEL:

EZA E10323 1-131 7.31E+01 pCi 9.26E-01 7.29E+01 pCi 1.22E+00 1.00 1-131 Cartridge GEL ID 316428001 E10324 Sr-89 9.18E+01 pCi/L 4.05E+00 9.66E+01 pCi/L 1.61E+00 0.95 Sr-89/90 w/maP* Sr-90 9.89E+00 pCi/L 1.53E+00 138E+01 pCiIL 2.31E-01 0.72 Milk GEL ID 316428002

• w/maf =with mixed activation/fission products E10325 1-131 9.57E+01 pCiIL 3.91E+00 9.OOE+01 pCiIL 1.50E+00 1.06 Gamma Ce-141 5.38E+01 pCi/L 2.27E+00 5.10E+01 pCi/L 8.52E-01 1.05 Milk Cr-51 3.67E+02 pCi/L 1.84E+01 3.48E+02 pCi/L 5.80E+00 1.06 Cs-134 1.54E+02 pCi/L 3.20E+00 1.65E+02 pCi/L 2.76E+00 0.93 Cs-137 1.18E+02 pCi/L 3.56E+00 1.17E+02 pCi/L 1.95E+00 1.01 GEL ID Co-58 9.85E+01 pCi/L 2.80E+00 9.85E+01 pCi/L 1.65E+00 1.00 316428003 Mn-54 1.16E+02 pCi/L 3.26E+00 1.16E+02 pCi/L 1.93E+00 1.00 Fe-59 1.33E+02 pCiIL 5.21E+00 1.16E+02 pCi/L 1.93E+00 1.15 Zn-65 1.96E+02 pCi/L 6.65E+00 1.86E+02 pCiIL 3.10E+00 1.05 Co-60 1.73E+02 pCiIL 3.64E+00 1.70E+02 pCi/L 2.84E+00 1.02 Fourt Qurter 2412 (Ref, DateO6.Du-2012) £L4 Cust rn Taole Pg I f 2

'The acceptable ratio is +/- 25% of the known value for Analytics.

66

TABLE C-1 ANALYTICS CROSS-CHECK PROGRAM

SUMMARY

SAMPLE ANALYSIS GEL UNCERTAINTY EZA UNCERTAINTY RATIO VALUE (1Sigma) VALUE (1 Sigma) GEL:

EZA E10380 1-131 7.47E+01 pCi/L 3.60E+00 7.25E+01 pCiIL 1.21E+00 1.03 Gamma Ce-141 5.33E+01 pCi/L 2.17E+00 5-32E+01 pCi/L 8.88E-01 1.00 Water Cr-51 3.81E+02 pCi/L 1.89E+01 3.62E+02 pCi/L 6.05E+00 1.05 Cs-134 1.57E+02 pCi/L 3.55E+00 1.73E+02 pCi/L 2.88E+00 0.91 Cs-137 1.25E+02 pCi/L 2.99E+00 1.22E+02 pCi/L 2.03E+00 1.03 GEL ID Co-58 1.02E+02 pCi/L 2.79E+00 1.03E+02 pCi/L 1.72E+00 0.99 316428004 Mn-54 1.28E+02 pCi/L 3.36E+00 1.21E+02 pCi/L 2.O1E+00 1.06 Fe-59 1.38E+02 pCi/L 5.82E+00 1.21E+02 pCi/L 2.01E+00 1.14 Zn-65 2.13E+02 pCi/L 6.12E+00 1.94E+02 pCiIL 3.24E+00 1.10 Co-60 1.80E+02 pCi/L 4.06E+00 1.77E+02 pCiIL 2.96E+00 1.01 Fourth Quarter 2012 (Ref. Date 06-Dec-2012) EZA Cust.# 278 Table Page 2 of 2

'The acceptable ratio is +/- 25% of the known value for Analytics.

67

APPENDIX D COMPARISON OF OPERATIONAL TO PREOPERATIONAL DATA AND ANALYSIS OF TRENDS 68

Comparison of Operational to Preoperational Data and Analysis of Trends Unit 1 achieved criticality on June 14, 1967 and was permanently retired from service on November 30, 1992. Unit 2 attained initial criticality on July 26, 1982 and Unit 3 on August 29, 1983.

A variety of environmental samples were analyzed and the analytical results (January 1, 1979 to July 31, 1982) were compared with the 2012 operational data obtained for SONGS Units 2/3.

The following media were evaluated and compared with the operational data of SONGS Units 1, 2 and 3:

A. External Radiation F. Ocean Bottom Sediments B. Air Particulates G. Marine Species C. Radioiodine H. Local Crops D. Ocean Water I. Soil E. Shoreline Sediment (sand) J. Kelp K. Drinking Water All of the measurements obtained from the SONGS Unit 1 operational Radiological Environmental Monitoring Program (REMP) during the period from January 1979 to July 1982 are used as the preoperational baseline for SONGS Units 2/3. This is in accordance with San Onofre Units 2/3, Environmental Report, Operating License Stage, Appendix 6A, Pre-operational Radiological Environmental Monitoring, May 31, 1978. Comparisons of preoperational data to 2012 operational data are possible for each of the following exposure pathways to man: (1) direct radiation, (2) air particulates (inhalation), and (3) ocean water (waterborne). Comparisons can also be made between preoperational and operational data for ocean bottom sediment data to ascertain if there has been any significant increase in radioactivity in ocean bottom sediments in the vicinity of the SONGS Units 2/3 outfalls.

Preoperational data are higher than the operational data. The decrease in radioactivity is due primarily to the cessation of nuclear weapons testing and to the decay of fallout radionuclides.

There is a close correlation between indicator and control data over several decades. See Figures 2A, 2B, 3A, 3B, 3C and 4. There are no indications of adverse effects from SONGS on the environment.

69

A. Direct Radiation SONGS Units 2/3:

Direct radiation measurements for the SONGS REMP were made quarterly at 38 indicator locations and 11 control locations in 2012. (See Appendix I for ISFSI TLD data). Direct radiation samples (TLDs) were collected at a number of inner and outer ring locations as specified by the ODCM. During the preoperational period from January 1979 to July 31, 1982, the indicator stations ranged from 16.1 to 46.6 mR. The preoperational indicator average was 25.3 mR. The preoperational control range was 19.3 to 30.1 and the control mean was 23.1 mR.

During the 2012 operational year for Units 2/3, the routine indicator TLD locations ranged from 10.1 to 26.4 mR, averaging 16.8 mR while the control locations ranged from 12.9 to 20.0 mR with an average of 16.7 mR. Outside the EAB all of the control and indicator TLD data is less than the calculated detection limit (5 mR per standard quarter) above the baseline background for each TLD location. Refer to Appendix B for a detailed discussion of the REMP TLD data.

Factors such as meteorology, local geology, the fallout from atmospheric nuclear weapons testing, and seasonal fluctuations account for the variability in the data seen during the preoperational period for each location. The decrease in radiation levels at all TLD sample locations is attributable to the curtailment of the atmospheric nuclear weapons testing, and the continued decay of fission products from previous nuclear weapons tests.

The average direct radiation doses were larger at both indicator and control locations during the preoperational period than during the 2012 operational period for SONGS Units 2/3. The larger average observed during the preoperational time span may be attributable to Chinese atmospheric nuclear weapons tests on March 14, 1978 and on October 15, 1980. The large average of the annual direct radiation levels seen at most TLD sample locations during 1986 and 1987 is attributable to the Chemobyl Nuclear Power Plant accident that occurred April 26, 1986.

Figure 2A and 2B compare the environmental radiation levels of selected indicator and control locations. Simultaneous variation in the radiation levels at both the control and indicator locations shows that the variations are due to factors external to SONGS. Outside the EAB the operation of SONGS had no detectable impact on the environment as measured by this sample medium.

B. Air Particulates SONGS Units 2/3:

From January 1979 through July 1982 (considered to be the preoperational period for SONGS Units 2/3), there is a period of noticeably higher gross beta activity in air at all sample locations.

This period extends from the fourth quarter of 1980 through the fourth quarter of 1981. These higher activity levels are attributable to the Chinese atmospheric nuclear weapons test conducted on October 15, 1980.

70

Figures 3A, 3B, and 3C compare the monthly average gross beta particulate in air activity levels of selected indicator locations with the control location over a period of 36 years (January 1976 to December 2012). The data clearly show a close correlation between the indicator and control locations for the entire time period covered. The various spike increases in gross beta activity at all sample locations are closely grouped and timed to coincide with known events external to SONGS with worldwide radiological impact. These events include: Chinese atmospheric nuclear weapons testing on September 17, 1977; March 14, 1978; October 15, 1980; the April 1986 Chernobyl accident and the March 11, 2011 Fukushima Dai-Ichi accident. The graphs (Figures 3A, 3B and 3C) show that the environmental levels of gross beta remained substantially similar at both the indicator and the control locations over an extended period of time, with both control and indicator locations showing simultaneous variations of equal magnitude. The fluctuations in gross beta activity are not attributable to SONGS and are the result of factors external to SONGS.

C. Radioiodine SONGS Units 2/3:

Most of the preoperational data for 1-131 level were below the detection limit. Unit 2 was shut down for a planned refueling outage on January 9, 2012 and did not operate for the remainder of 2012 and unit 3 was taken off-line after a steam generator tube leak on January 31, 2012.

SONGS had no effect on the environment as measured by the radioiodine cartridge data.

D. Ocean Water SONGS Units 2/3:

Ocean water samples were collected on a monthly basis in the vicinity of each of the Station discharge outfalls, and from the Newport Beach control location. The ocean water samples are analyzed for naturally occurring and station-related gamma-emitting radionuclides. They are composited quarterly and analyzed for tritium.

During the preoperational period, naturally occurring potassium-40 was detected in each of the samples collected from both indicator and control locations. Other gamma-emitting radionuclides were detected in only one ocean water sample. In May 1980, Co-58, Co-60, Cs-134, and Cs-137 were detected in an ocean water sample collected from the SONGS Unit 1 outfall. Concentrations of the radionuclides in this sample were 11, 6, 380, and 430 pCi/l, respectively. Tritium was also detected in two of the ocean water samples collected in May 1980 from the SONGS Unit 2 outfall and from the Newport Beach control location. One of the quarterly ocean water composite samples from the Unit 2 outfall had 404 pCi/l of tritium in September 2012 compared to a value of 302 pCi/I of tritium in the control sample from Newport Beach.

The data for all other SONGS related radionuclides at all ocean water locations during the 2012 operational period were below both the a priori LLD and the lower a posterioriMDC. We conclude that the operation of SONGS had a negligible impact on the environment as measured by this sample medium.

71

E. Shoreline Sediments (Sand)

SONGS Units 2/3:

Beach sand is collected semiannually from three indicator locations and from a control location situated at Newport Beach. The samples are analyzed for naturally occurring and plant-related radionuclides.

To assess the impact of SONGS operations on this environmental medium, preoperational data were compared to 2012 operational data. The radionuclide detected in shoreline sediment in the preoperational time frame was Cs-137 with a range of 0.012 to 0.022 pCi/g, averaging 0.019 in 5 sediment samples. One control sample with a Cs-137 activity of 0.032 pCi/g was observed in July 1979. The presence of Cs- 137 in both control and indicator locations during the preoperational period leads to the conclusion that the root cause is external to SONGS and is most likely attributable to atmospheric nuclear weapons testing. No SONGS-related radionuclides were detected in shoreline sediment during the 2012 operational period. Thus the impact of SONGS on the environment as measured by the sample medium is considered to be negligible.

F. Ocean Bottom Sediments SONGS Units 2/3:

During the preoperational and operational periods, representative samples of ocean bottom sediments were collected semiannually from each of the Station discharge outfalls and from a control station in Laguna Beach. The samples were analyzed for naturally occurring and SONGS related radionuclides. The results of the analyses are listed in Table D-lB.

SONGS-related radionuclides were also detected in samples collected during preoperational period. Manganese-54 (Mn-54) was detected in 5 of the 28 samples. The concentrations of Mn-54 in these samples ranged from 0.015 to 0.49 pCi/g, averaging 0.13 pCi/g. Cobalt-58 (Co-58) was detected in nine samples. The concentration of Co-58 in the samples ranged from 0.013 to 1.16 pCi/g, averaging 0.20 pCi/g. Cobalt-60 (Co-60) was measured in 15 of the 28 samples. The concentration of Co-60 in the sample ranged from 0.014 to 8.1 pCi/g, averaging 0.79 pCi/g. Cs-137 was also detected in 16 of the 28 samples. The concentrations of Cs-137 in the samples ranged from 0.014 to 0.090 pCi/g, averaging 0.039 pCi/g. Cerium-144 (Ce-144) was found in two samples. The concentration of Ce-144 in the samples was 0.06 and 0.26 pCi/g, respectively.

The results indicate that there has not been a build-up of radionuclides with time in ocean bottom sediments near SONGS. The results also indicate notable decrease in the concentrations of plant-related radionuclides in the ocean bottom sediment. Although Co-58, Co-60, and Cs-137 are normally associated with nuclear power operations, preoperational study reveals no accumulation trend for these radionuclides, and no increase in levels for these radionuclides was detected during the operational period.

The concentration of station-related radionuclides in all ocean bottom sediment samples analyzed in 2012 was below the a posterioriMDC. We conclude that operation of SONGS Units 2/3 has had a negligible impact upon this environmental medium.

72

TABLE D-1A SHORELINE SEDIMENTS CONCENTRATION (pCi/g, wet weight)

PREOPERATIONAL AND OPERATIONAL DATA*

SONGS UNITS 2/3 INDICATOR CONTROL Radionuclide** Period Range Average Range Average Cs-137 PreOp 0.012-0.022 0.019 <LLD-0.032 <LLD All other measured PreOp < LLD < LLD < LLD < LLD SONGS related Radionuclides Operational < LLD < LLD < LLD < LLD TABLE D-1B OCEAN BOTTOM SEDIMENTS CONCENTRATION (pCi/g, wet weight)

PREOPERATIONAL AND OPERATIONAL DATA*

SONGS UNITS 2/3 INDICATOR CONTROL Radionuclide Period Range Average Range Average Mn-54 PreOp 0.0150-0.49 0.129 <LLD <LLD Co-58 PreOp 0.013-1.160 0.199 <LLD <LLD Co-60 PreOp 0.014-8.100 0.788 <LLD <LLD Ag-I lOim PreOp <LLD-0.020 <LLD <LLD <LLD Cs-137 PreOp 0.014-0.090 0.039 <LLD-0.043 <LLD Cs-137 Operational <LLD <LLD <LLD <LLD Ce-144 PreOp 0.060-0.260 0.160 <LLD <LLD All other measured PreOp <LLD <LLD <LLD <LLD SONGS related radionuclides Operational <LLD <LLD <LLD <LLD

• PreOp = January 1979 to July 1982; Operational - January to December 2012

• • During January to December 2012 all station related Radionuclides from all sample locations were < LLD LLD Lower limits of detection for operational data are listed in Appendix B.

73

G. Marine Species (Flesh)

SONGS Units 2/3."

Non-migratory marine species were collected semi-annually near SONGS to determine the amount of radioactivity that could be consumed by man or that was present in the food chain to man. Marine species caught by the SONGS outfalls and from Laguna Beach include four species of adult fish, crustacea and mollusks. Upon collection, the flesh portion is analyzed for gamma-emitting, radionuclides as specified in the ODCM. The results are subsequently reported as pCi/gram wet weight.

Results for several marine species for both the preoperational and 2012 operational periods for Units 2/3 are summarized in Table D-2. The marine species used for purposes of comparison include: sheephead (a fish), Blacksmith, black perch (a fish), bay mussel (a mollusk), spiny lobster (a crustacea), and keyhole limpet (a mollusk). Radionuclides analyzed but not included in Table D-2 were below the lower limits of detection for both the preoperational and operational periods.

During the 2012 operational period, no SONGS related radionuclides were detected above the a priori LLD. Several samples in both the control and indicator locations were found above the a posterioriMDC. The data indicate no accumulation trends. The operation of SONGS Units 2/3 in 2012 had no impact on the environment as measured by this sample medium.

74

TABLE D-2 MARINE SPECIES CONCENTRATIONS (pCi/g, wet weight) PREOPERATIONAL AND 2012 OPERATIONAL DATA (SONGS UNITS 2/3)*

Sheephead Flesh**

INDICATOR CONTROL Radionuclide Period Range Average Range Average Co-58 PreOp 0.016-0.030 0.023 <LLD <LLD Co-60 PreOp 0.005-0.044 0.017 <LLD <LLD Ag- 1i0m PreOp <LLD-0.004 <LLD <LLD <LLD Cs-137 PreOp 0.004-0.018 0.007 0.005-0.012 0.007 All other PreOp <LLD <LLD <LLD <LLD measured SONGS related Operational <LLD <LLD <LLD <LLD radionuclides Black Perch Flesh**

INDICATOR CONTROL Radionuclide Period Range Average Range Average Co-58 PreOp 0.009-0.011 0.010 <LLD <LLD Co-60 PreOp 0.004-0.045 0.017 <LLD <LLD Ag-I 10m PreOp 0.002-0.009 0.006 <LLD <LLD Cs-137 PreOp 0.003-0.015 0.008 0.004-0.014 0.009 All other PreOp <LLD <LLD <LLD <LLD measured SONGS related Operational <LLD <LLD <LLD <LLD radionuclides

• PreOp = January 1979 to July 1982; Operational = January to December 2012. The species collected in 2012 were California Mussel, Black Perch, Sheephead, Kelp Bass, Barred Sand Bass, and Spiny Lobster.

• • During January to December 2012 all station related Radionuclides from all sample locations were < LLD LLD Lower limits of detection for operational data are listed in Appendix B.

75

TABLE D-2 MARINE SPECIES CONCENTRATIONS (pCi/g, wet weight) PREOPERATIONAL AND 2012 OPERATIONAL DATA (SONGS UNITS 2/3)*

Mussel Flesh (Bay or California)**

INDICATOR CONTROL Radionuclide Period Range Average Range Average Mn-54 PreOp 0.009-0.025 0.017 <LLD <LLD Co-58 PreOp 0.008-0.080 0.028 ....

Co-60 PreOp 0.005-0.40 0.077 <LLD <LLD Cs-137 PreOp 0.003-0.006 0.004 <LLD <LLD Ru- 103 PreOp <LLD-0.045 <LLD <LLD <LLD All other PreOp <LLD <LLD <LLD <LLD measured SONGS related Operational <LLD <LLD <LLD <LLD Radionuclides Spiny Lobster Flesh**

INDICATOR CONTROL Radionuclide Period Range Average Range Average Co-58 PreOp 0.007-0.270 0.086 <LLD <LLD Co-60 PreOp 0.014-0.210 0.060 <LLD <LLD Cs-137 PreOp 0.005-0.011 0.008 0.040-0.015 0.008 All other PreOp < LLD < LLD < LLD < LLD measured SONGS related Operational < LLD < LLD < LLD < LLD radionuclides

• PreOp = January 1979 to July 1982; Operational = January to December 2012. The species collected in 2012 were California Mussel, Black Perch, Sheephead, Kelp Bass, Barred Sand Bass, and Spiny Lobster.

• • During January to December 2012 all station related Radionuclides from all sample locations were < LLD LLD Lower limits of detection for operational data are listed in Appendix B.

76

TABLE D-2 MARINE SPECIES CONCENTRATIONS (pCi/g, wet weight) PREOPERATIONAL AND 2010 OPERATIONAL DATA (SONGS UNITS 2/3)*

Sea Hare Flesh**

INDICATOR CONTROL Radionuclide Period Range Average Range Average Co-57 PreOp 0.006-0.017 0.009 <LLD <LLD Co-58 PreOp 0.006-12.4 1.233 <LLD <LLD Co-60 PreOp 0.016-2.000 0.448 0.003-0.027 0.013 Zn-65 PreOp <LLD-0.10 <LLD <LLD <LLD Ag- 1l0m PreOp 0.018-0.50 0.138 0.020-0.039 0.030 Cs-137 PreOp <LLD-0.004 <LLD <LLD-0.005 <LLD All other PreOp <LLD <LLD <LLD <LLD measured SONGS related Operational ---

radionuclides Keyhole Limpet (Flesh)**

INDICATOR CONTROL Radionuclide Period Range Average Range Average Co-58 PreOp 0.007-0.101 0.054 <LLD-0.190 <LLD Co-60 PreOp 0.021-0.040 0.033 <LLD-0.022 0.022 Ag- 110m PreOp 0.033-0.101 0.054 0.005-0.042 0.022 Cs-137 PreOp <LLD <LLD <LLD-0.005 <LLD All other PreOp <LLD <LLD <LLD <LLD measured SONGS related Operational ---

Radionuclides

• PreOp = January 1979 to July 1982; Operational = January to December 2012

• • Sea Hare and Keyhole Limpet samples were not collected in 2012 LLD Lower limits of detection for operational data are listed in Appendix B.

77

H. Local Crops SONGS Units 2/3:

In the preoperational period of January 1979 through July 1982, Sr-90 was detected in the control samples of kale, parsley, and squash. Naturally occurring K-40 was detected in cucumber, kale, and tomato samples from the indicator and control locations. Ce- 144 and Zr-95 were detected in one sample of parsley at the control location at concentrations of 0.12 and 0.09 pCi/g, wet weight respectively.

Samples collected in May and October, 2012 were < LLD for all plant related radionuclides. In June 2012, Cs-137 was detected in a control sample of tomato > a posterioriMDC, but <LLD. A recount was < a posterioriMDC. The operation of SONGS had no impact on the environment as measured by this sample medium.

I. Soil SONGS Units 2/3:

A comparison of operational and preoperational data does not reveal any accumulation pattern of SONGS related isotopes in soil. The intermittent detection of Cs-137 in both indicator and control locations is due to residual fallout from atmospheric nuclear weapons testing.

J. Kelp SONGS Units 2/3:

Kelp is collected semiannually from three indicator locations and from a control location situated at Salt Creek. After collection, the samples are analyzed by gamma-spectral analysis for naturally occurring and SONGS-related radionuclides. During 2012 four additional control sample locations were analyzed.

To assess the impact of SONGS operations on kelp, preoperational data were compared to 2012 operational data in Table D-4. Radionuclides detected during the preoperational period for SONGS Units 2/3 include Mn-54, Co-60, Zr-95, 1-131, and Cs-137.

During the 2012 operational period, 1-131 was detected in all samples. No other station related isotopes were detected in kelp samples during the 2012 operational period. Figure 4 (131 in Kelp) shows a close correlation between indicator and control sample locations over an extended period of time.

Although 1-131 activity has been randomly detected in kelp since 1977, there is no evidence that the concentration of 1-131 or other station related radionuclides in kelp is increasing near SONGS. 1-131 in kelp is due to the sewer release of medical administrations, since it has been detected consistently in control as well as indicator locations. Since 1988 the concentration of 1-13 1, when detected, has typically been highest at the control locations. These data support the conclusion that during the Units 2/3 operational period, the detection of 1-131 in kelp is due to factors external to SONGS.

78

K. Drinking Water No plant related radionuclides were detected during the 2012 operational period. Gross beta activity was detected during both the operational and preoperational periods at both the indicator and the control locations. No trends have been noted. There is no drinking water pathway for SONGS. The operation of SONGS had no impact on the environment as measured by this sample medium.

79

TABLE D-3 SOIL PREOPERATIONAL AND OPERATIONAL DATA* (pCi/g, dry weight)

SONGS UNITS 2/3 INDICATOR CONTROL Radionuclide Period Range Average Range Average Sr-90 PreOp 0.02-0.08 0.044 <LLD-0.03 <LLD Cs-137 PreOp 0.02-0.20 0.096 <LLD-0.06 <LLD Cs-137 Operational < LLD-0.18 <LLD 0.25 0.25 All other PreOp <LLD <LLD <LLD <LLD measured SONGS related Operational <LLD <LLD <LLD <LLD radionuclides TABLE D-4 KELP PREOPERATIONAL AND OPERATIONAL DATA* (pCi/g, wet weight)

SONGS UNITS 2/3 INDICATOR CONTROL Radionuclide Period Range Average Range Average Mn-54 PreOp <LLD-0.005 <LLD <LLD <LLD Co-60 PreOp 0.006-0.009 0.008 <LLD <LLD Zr(Nb)-95 PreOp 0.014-0.090 0.046 0.018-0.053 0.036 1-131 PreOp 0.006-0.024 0.013 0.008-0.030 0.014 1-131 Operational 0.011- 0.039 0.024 0.011 - 0.079 0.035 Cs-137 PreOp 0.004-0.009 0.006 <LLD <LLD All other PreOp <LLD <LLD <LLD <LLD measured SONGS related Operational <LLD <LLD <LLD <LLD radionuclides PreOp = January 1979 to July 1982; Operational = January to December 2012 LLD Lower Limit of Detection for operational data are listed in Appendix B.

80

APPENDIX E DEVIATIONS FROM ODCM SAMPLING REQUIREMENTS IN 2012 81

DEVIATIONS FROM ODCM SAMPLING REQUIREMENTS Deviations from the ODCM sampling requirements are identified below in accordance with section 5.0 of the ODCM. The performance standard for environmental data collection of 95%

was met for all sample types. During 2012, the ODCM specified a priori LLD was achieved for most REMP samples. Deviations from the ODCM were associated with external factors not within the control of REMP personnel such as limited availability of marine samples at the locations specified in the ODCM. The 2012 ODCM deviations had no meaningful impact on the REMP database and did not compromise the validity of the reported conclusions.

PART I TERRESTRIAL SAMPLING A WEEKLY AIR SAMPLING Downtime for each air sampler in 2012 due to weekly sample collection, annual Preventive Maintenance (PM), and the annual gas meter change out was approximately 46 minutes for each sampler.

Weekly Change out: Approximately 0.5 minutes x 52 = 26 minutes Annual PM: Approximately 15 minutes Annual Gas Meter change out: Approximately 5 minutes Down times in excess of 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> are described below for each ODCM required air sample.

Air Sampler 16 (San Luis Rey Substation): Sampler # 16 had 4.82 hours9.490741e-4 days <br />0.0228 hours <br />1.35582e-4 weeks <br />3.1201e-5 months <br /> of down time in 2012 due to external factors (electrical power outages).

82

Summary of Air Sampler Corrective Actions The useful life of the vacuum pump motor assemblies is estimated to be five years based on the recommendation of the manufacturer and upon experience. If the internal components (motor and control valve) are replaced the useful life may be extended. During 2012 the REMP air samplers experienced no down time attributable to motor or vacuum pump assembly failure.

Thus there were no avoidable air sampler deviations from the ODCM during 2012.

B. DIRECT RADIA TION No deviations were observed.

C. LOCAL CROPS No deviations were observed.

D. SHORELINE SEDIMENTS No deviations were observed.

E. DRINKING WATER No deviations were observed.

F. SOIL No deviations were observed.

PART II MARINE SAMPLING A. NON-MIGRA TORY MARINE ANIMALS Samples were collected from the specified ODCM sample location when samples were available at that location. When the specified sample type was not available at the ODCM listed location, alternate locations were selected based on sample availability and proximity to the specified sample location. All indicator samples were obtained within two miles of the associated outfall. In some cases the indicator species is not the same as the control species due to limited availability at the indicator location. Most non-migratory marine species samples were not available at the locations specified in the ODCM. All indicator marine animal samples were collected within 2 miles of the Units 2 & 3 discharge diffusers.

B. OCEAN WA TER SAMPLING No deviations were observed.

C. OCEAN BOTTOM SEDIMENTS No deviations were observed.

83

APPENDIX F LAND USE CENSUS 84

INTRODUCTION The 2012 Land Use Census (LUC) was conducted in-house in accordance with Section 5.2 of the Offsite Dose Calculation Manual (ODCM) and per the Radiological Environmental Monitoring Program (REMP) Land Use Census Procedure, S0123-IX-1.20. The purpose of the Land Use Census is to identify radiation exposure pathways to humans. The methodology consists of reviewing aerial photographs of the study area and confirming data with the cognizant agency.

This study is conducted annually. Information on how long a person or persons will be located at the nonresidential uses closer than the closest residence is also estimated by the appropriate person or agency.

Executive Summary The land area around San Onofre Nuclear Generating Station (SONGS) is not subject to significant change due to the nature of the land uses. The area around SONGS is divided into sixteen (16) geographical sectors. The Pacific Ocean and Marine Corps Base Camp Pendleton comprise 13 of the 16 sectors surrounding SONGS. The City of San Clemente (a mature municipal area) and coastline comprise the remaining three sectors. Therefore, the characteristics of the local area substantially inhibit significant land use changes.

Definition of Uses Residence is defined as any structure (single-family house, apartment, mobile home, barracks or similar unit) that is occupied by an individual(s) or resident(s) for three months (2,000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br />) or longer in a given year.

Other Specified Use is defined as a location occupied by members of the general population as other than their primary residence. The use is divided into two categories: employment and non-employment related.

Employment use is defined as a location occupied by members of the general population engaged in normal work activities regardless of the length of time spent at the location, and regardless of its permanence, including concession stands, restaurants, campground hosts, markets and guard shacks.

Non-employment-related use is defined as a location occupied by members of the general population who are not engaged in normal work activities, including campgrounds, temporary housing, time-share condominiums, motels, hotels, schools and beaches.

Milk animals are cows, goats and sheep whose milk is used in dairy products for human consumption.

Meat animals include, but are not limited to, deer, cattle, goats and sheep whose meat is used for human consumption.

85

Fresh, leafy vegetables include, but are not limited to, lettuce, cabbage and spinach.

Fleshy vegetables include, but are not limited to, tomatoes, cucumbers, cauliflower and sweet corn.

THE STUDY SCOPE The study area includes land in both Orange and San Diego counties. The Orange County portion includes a portion of the city of San Clemente (population estimated to be 63,743 as of January 1, 2011) and the San Clemente State Park. The San Diego County portion includes much of the Camp Pendleton USMC base, San Onofre State Beach and Park, and SONGS itself.

The LUC map is divided into 16 sectors; A, B, C, D, E, F, G, H, J, K, L, M, N, P, Q, and R. The ODCM requires that the LUC identify the nearest residences, milk animals, meat animals, and vegetable gardens of at least 500 square feet, and other specified uses (campgrounds, employment, etc.) in each of the sectors within five miles of SONGS. Sectors A, B, C, D, E, and F include land almost exclusively within the boundaries of the Marine Corps Base Camp Pendleton. The study area in sector G includes the area along the coast south of SONGS.

Sectors H, J, K, L, M, and N are the Pacific Ocean; no land uses possible. Sectors P, Q, and R include the City of San Clemente and part of Camp Pendleton.

METHODOLOGY A review of the 2011 LUC and documentation notebook was conducted. Verification & revision of the 2011 data was accomplished by inquiry to the cognizant agency, organization, or individual possessing direct knowledge of the item being verified.

A vegetable garden census was performed by examining aerial photographs. Locations which appeared to correspond to garden locations were converted to street addresses. The identified locations were compared with the addresses evaluated in previous LUCs. One new garden was identified in 2012.

The closest residence was established in each sector by aerial photo review and by correspondence with USMC Camp Pendleton. The meat and milk animal survey was perfonrned by contacting the natural resources office on Camp Pendleton and the Orange County Agriculture Department. Information on other uses was obtained by contacting the appropriate organizations.

The 2012 Land Use Census survey was prepared per SONGS procedure S0123-IX-1.20, revision 6.

86

SUMMARY

OF CHANGES Summary of Changes

1. LUC # G A new garden was identified 4.0 miles from Units 2/3 in Sector Q.

2. LUC # R-R2 - SONGS Camp Mesa was a Full Time Residence (FTR) in 2012.

3. LUC # R-R3 - The SONGS dry camping increased occupancy to 2136 hours0.0247 days <br />0.593 hours <br />0.00353 weeks <br />8.12748e-4 months <br /> for 2012.

4. LUC # O-2B UMCA surfcamp - The YMCA operated an overnight surf camp during 2012 at San Onofre State Park, group space #1, with a maximum estimated occupancy of 384 hours0.00444 days <br />0.107 hours <br />6.349206e-4 weeks <br />1.46112e-4 months <br />.

5. LUC # R-C2 - The Camp San Onofre Fire Station estimated maximum occupancy increased to 3984 hours0.0461 days <br />1.107 hours <br />0.00659 weeks <br />0.00152 months <br /> per year.

6. LUC # 24 - The Christianitos Fire Station estimated maximum occupancy increased to 3984.

This location is included in Table 2 for historical trending purposes only and is not mapped.

7. Updated Camp Pendleton hunting take data for the period July 1, 2011 to June 30, 2012 is listed in Table 3. Per the base wildlife biologist, the exact location of a particular kill is not known. The reported take area should be interpreted as an estimate of approximate location.

Thus a deer reported as taken in hunting area Alpha 2 may actually have been taken in an adjacent hunting area (such as Romeo 3 or Bravo 3). There are no changes to the estimated distances from SONGS to the nearest vegetation potentially consumed by deer for 2012.

87

TABLE F-i 2012 SONGS Units 2/3 LUC Five-Mile Radius Summary Sheet CL, 01 Units Miles E '

2/3 From U.M Sector LUC # Residence U2/3 A R-A1 Camp San Mateo 3.6 FTR R-A2 SONGS Camp Mesa 0.4 FTR B

C R-C2 Camp San Onofre Fire Station 2.4 3,984 R-C1 Camp San Onofre Barracks 524101 2.8 FTR R-C3 Camp San Onofre Barracks 2.6 FTR O R-D1 Camp San Onofre Barracks 3.0 FTR E R-EI Camp Homo Barracks 4.1 FTR F

G I

Sectors H, J, K, L,M, and N have no identified land uses These Sectors are primanly the Pacific Ocean and contain only a small portion of the plant site, and a beach walkway providing access for state beach park users north & south of SONGS.

P R-P3 San Onofre Rec Beach (SORB) 1.0 FTR R-P2 San Mateo Point Housing 2.7 FTR R-P1 Cotton Point Estates 2.7 FTR Q R-Q5 SORB Resident Employee 1.1 FTR R-Q2 San Onofre III housing 1.4 FTR R-Q3 San Mateo Point Housing 2.7 FTR R R-R2 SONGS Camp Mesa 0.4 FTR R-R3 SONGS Dry Camping PL12 0.7 2136 R-R1 San Onofre III housing 1.3 FTR T----F- I I Bold Text indicates changes from 2011 LUC Data as of 9-30-2012 FTR- Full Time Residence 88

TABLE F-2 2012 SONGS Units 2/3 LUC Five-Mile Radius Summary Sheet Units Miles 2/3 From Sector LUC # Gardens U2/3 A

B C

D E

F G

Sectors H, J, K, L,M, and N have no identified land uses These Sectors are primarily the Pacific Ocean and contain only a small portion of the plant site, and a beach walkway providing access for state beach park users north & south of SONGS.

• T P G-3 Cotton Point Estate 2.8 Q G-8 2240 Ave Salvador 4.1 G-5 1706 S Ola Vista 4.4 G-6 1315 S Ola Vista 4.6 G-15 130 Calle del Pacifico 4.0 R G-10 SONGS Garden 0.4

__ I

__ I ______________ F __

Bold Text indicates changes from 2011 LUC Data as of 9-30-2012 FTR - Full Time Residence 89

TABLE F-3 2012 SONGS Units 2/3 LUC Five-Mile Radius Summary Sheet

=

-E2 0

ZE.

Units Miles E w 2/3 From (j0)

LUC # Other Specified Uses U2/3 W 0 0 Sector A 0-8 Camp San Mateo Motor Pool 3.6 2,000 22 SCE Land Uses 0.4 B 0-9 USMC CP Sanitary Land Fill 2.1 816 C 0-10 Camp San Onofre (STP #11) 2.2 2,000 D

E 0-5 Camp Homo Motor Pool 4.0 2500 F 0-1 San Onofre State Beach Guard Shack 0.8 1,500 31A Border Patrol Checkpoint (NB) 1.9 2400 31B Hwy Patrol Weigh Sta (NB) 2.1 1,960 G 0-2 San Onofre Beach Campground 1.8 720 32 Hwy Patrol Weigh Sta (SB) 2.1 1,960 0-2A Endless Summer Surf Camp (see notes) I 2.8 4,380 Campground Host 0-2B YMCA Surf Camp 2.0 384 Sectors H, J, K, L,M, and N have no identified land uses These Sectors are primarily the Pacific Ocean and contain only a small portion of the plant site, and a beach walkway providing access for state beach park users north & south of SONGS.

P 0-6 Surf Beach (Lifeguard) 0.5 800 3 Trestles Beach Lookout Tower 1.8 500 Q 0-3 State Park Office Trailer 0.6 2,000 5 Surf Beach Guard Shack 0.7 1,500 18 SORB Lifeguard Tower 1.2 2,000 1A SORB Campground Checkin 1.3 2000 R

Bold Text indicates changes from 2011 LUC Data as of 9-30-2012 FTR - Full Time Residence 90

APPENDIX G FIGURES FOR 2012 91

MARINE AQUATIC TERRESTRIAL LJ ECOSYSTEM I -~ ECOSYSTEM ECOSYSTEM K

ESTUARINE ECOSYSTEM NuReg/CR-3332, ORNL-5968, "Radiological Assessment" Figure 1. Potential Radiation Exposure Pathways Leading to Man 92

Direct Radiation Monitoring 1981 to 1999 Quarterly Environmental TLD measurements In mR Selected TLDs located very close to SONGS vs. Selected CONTROL TLDs 50 40 30 E

20 10 0

in v- 2 3 - 0 W I, D 21 2 s cc :9 00 a a Z G1 ab a -M it Id C! r: le Id e U! 9! 9!

1 ) - -~ ') ~ -' , - ~ -, - ) *

- TLD 11 .... 0.4 miles NW -, CONTROL TLD 44 ... 17.7 miles E

- TLD 12 .... 0.2 miles E - TLD 58 .... 0.1 miles S

. Mean of CONTROL TLDs 31 & 50 - TLD 59.. 0.3 miles WNW Figure 2A 93

Direct Radiation Monitoring 1998 to 2012 Quarterly Environmental TLD measurements in mR Selected TLDs located very close to SONGS vs. Selected CONTROL TLDs 50 40 30 E

20 10 0

0 10 to I.- C3 N d

C Cý i N

N C N

M C

N C

C N

10 C2 C,

N C C N

0 C N C Nl M CI! C C2 U C C U 'U 'U

- TLD 11 .... 0.4 miles NW -. CONTROL TLD 44 .... 17.7 miles E

- TLD 12 .... 0.2 miles E TLD 58 .... 0.1 miles S

... CONTROL TLD 31 .... 18.6 miles NNW TLD 59 .... 0.3 miles WNW

- *

• CONTROL TLD 50 .... 15.6 miles SE Figure 2B 94

Monthly Average Airborne Particulate Gross Beta Activity 0.5 Preoperational and Operational Data for SONGS Units 2 and 3 0.4 e

OS 0.3 E

0.2 0.1 0

ID N N

N Gb N

0 mD ID ID 40 N ID C £ C C £ C C C C IU U 1 a a San Clemente City Hall .... 5.1 Miles NW - State Beach Park .... 0.6 Miles ESE Huntington Beach (CONTROL) .... 31.1 Miles NW - Bluff .... 0.7 Miles WNW Figure 3A 95

Monthly Average Airborne Particulates Gross Beta Activity SONGS Units 2 and 3 from January 1988 to December 1997 0.S 0.4 0.3 E

0.2 0.1 to C)

C" C

.3 T3

.3

- City of San Clemente (City Hall) .... *Huntington Beach (CONTROL) - Marine Corm Base WCamo Pendleton East)

Figure 3B 96

Monthly Average Airborne Particulates Gross Beta Activity SONGS Units 2 and 3 January 1998 to December 2012 0.5 0.4 0.3 e

12.

0.2 0.1 0

vlAJ Go C*

0) C

0) 03*

0= o o o Cl 0 0 3 IC w C

r. C C

'U C C C C ca 'U CS '- C cl II ~U 4U 'U '"I

- City of San Clemente --- State Beach Park

• CONTROL Figure 3C 97

Weekly Airborne Particulate Gross Beta Activity January 2011 to December 2012 0.5 04 0.3 A E

U

(.1 a.

0.2 0.1 0 -- -- I-,' -------- M' M' C4 ('4 M' M' N' M C4 C4 IC Mf~

- City of San Clemente (City Hall) --- State Beach Park ... San Luis Rey Substation Figure 3D 98

1-131 in Aquatic Kelp 0.4 0.35 0.3 0.25 0.2 C.

0.15-0.1 0.05 * '.k, ' ^

- San Onofre Kelp Bed ... Barn Kelp Bed

- San Mateo Kelp Bed ,, CONTROL Figure 4 99

APPENDIX H ERRATA TO THE 2011 AREOR All data required by the ODCM in 2011 was reported in the 2011 AREOR. There are no errata to be appended to the 2011 AREOR.

100

APPENDIX I REMP TLDs CO-LOCATED WITH DPH TLDs DURING 2012 101

APPENDIX I REMP TLDs CO-LOCATED WITH DPH TLDs DURING 2012 California Department of Public Health (DPH) also maintains a TLD program in the environs of SONGS. Per DPH (Department of Public Health) request the results of (TLDs) that are co-located with DPH dosimeters are reported below.

The below listed quarterly TLD data is from the SCE TLDs adjacent to the DPH TLD programs.

The NRC location numbers refer to the locations in the old NRC program.

2012 Data from SCE TLDs (mR/ standard quarter) 1st 2nd 3rd 4th Location Number Location Name Qtr Qtr Qtr Qtr SCE -1, NRC -7, DPH #2 San Clemente 18.1 16.8 16.7 17.3 SCE -2, NRC -23, DPH #8 Camp San Mateo 18.2 17.7 18.5 17.8 SCE -3, NRC -19, DPH #9 Camp San Onofre 16.4 15.4 16.5 15.5 SCE -6, DPH #10 Old Route 101 (Es-otes)12.0 (East-Southeast) 10.6 11.3 10.6 SCE 10, NRC -12, DPH #6 San Onofre Surfing Beach 18.1 15.4 16.0 16.2 SCE 16, DPH #7* ESE Site boundary 22.3 17.5 19.3 17.8 SCE 22, NRC 11, DPH #4 Coast Guard Station 18.7 16.5 17.7 17.9 SCE -34, NRC -14, DPH #5 San Onofre Elementary 16.7 14.3 15.4 15.8 School SCE 41, NRC 25, Old Route 101 (Unit 3) 15.8 15.1 15.8 15.1 DPH #11**

SCE 50, NRC 32, DPH #13 Oceanside Fire Station 17.1 16.5 16.5 16.5

• SCE 16 is approximately 15 meters from DPH 7. DPH 7 is across Basilone Rd

• • SCE 41 is approximately 120 meters from DPH 11. Results included per DPH request 102

Appendix J Independent Spent Fuel Storage Installation (ISFSI) TLD Data 103

Independent Spent Fuel Storage Installation (ISFSI) TLD Data Per 10 CFR 72.126, SONGS implemented an area monitoring TLD program in the vicinity of the ISFSI. In the fourth quarter of 2001, 21 pre-operational TLDs were deployed in the area around the ISFSI foundation then under construction. The pre-operational TLDs data are compared to the data obtained after the commencement of used fuel storage in the ISFSI for the purposes of estimating the additional exposure potentially attributable to the operation of the ISFSI.

An evaluation of the entire REMP TLD database yielded estimated background exposure rate of approximately 15 mR / std quarter. However, some local variability within the CAB / EAB are to be attributable to factors external to SONGS (such as micro-geological variations). Another variable for the measured exposure rate is transit exposure to and from the TLD lab. The transit exposure is variable and is corrected by the lab but the issue of TLD shipment packaging geometry cannot be readily corrected. Therefore, a comparison of pre-operational data and operational data needs to be considered in conjunction with a comparison of ISFSI TLD data and the estimated baseline background exposure rate within the EAB. Using this information, we conclude that the exposure rate outside the CAB (10 CFR 72 Controlled Area Boundary) is less than detectable. The detection limits are 5 mR/standard quarter and 10 mR/year. The exposure attributable to the operation of the ISFSI as indicated by this media is not measurable beyond the immediate area of the ISFSI.

Environmental exposure rates are variable and small changes in TLD location can measurably change the data. The REMP TLD data show a seasonal variability that does not appear to be related to any activities at SONGS. The data support the conclusion that macro-environmental factors are the causative agents for the seasonal variations. Refer to Figure 2a and 2b. The ISFSI TLD data gathered to date appears to follow a similar seasonal variability. Refer to Figures 6-1, 6-2, and 6a. In addition to environmental factors, some non-ISFSI work activities at Unit 1 have elevated the pre-operational measured ISFSI TLD exposure. The storage and transport of radioactive materials and waste near the location of the ISFSI foundation area in 2001 and 2002 appears to have elevated the exposure rates of TLDs 306 to 315. In addition, the movement of the Unit 1 reactor vessel in October 2002 caused a noticeable increase in the measured exposure for TLDs 301 to 315. The measured exposure rate for the ISFSI TLDs close to the ISFSI is consistent with the exposure rate expected from known radiological work activities. The elevated exposure rate from TLDs 301, 302, 303, 304, 323, 324, 325, 326, 327 and 328 is primarily due to the movement and storage of used fuel at the ISFSI.

In the second quarter of 2011 additional TLDs 327 and 328 were placed along the fence on the southwest side of the ISFSI. These TLDs had the highest readings in 2012. The closest publicly accessible location is SW of the ISFSI along the San Onofre Beach access road, outside the plant's perimeter. The background corrected annual exposure for the access road TLDs 55 and 56 was 19 and 17 mR, respectively, in 2012. Assuming a maximum occupancy of 300 hours0.00347 days <br />0.0833 hours <br />4.960317e-4 weeks <br />1.1415e-4 months <br /> per year the dose to a member of the general public is < 1 mrem per year at this location as measured by the REMP TLDs.

104

Starting in the fourth quarter 2010 neutron dosimeters were placed in ISFSI TLD canisters 311, 324, 325, and 326. In the second quarter 2011 neutron dosimeters were also placed adjacent to TLDs 327 and 328. The 2012 neutron exposure is below measurable levels for spent fuel in storage. Neutron exposure during fuel transfer is measurable at the fence surrounding the storage facility at low levels, typically a few mR per quarter. These measurements demonstrate that the neutron exposure is bounded by the projected neutron dose rates in calculation SCE 0508, is well within the limits specified in IOCFR72.104, and is consistent with known ISFSI radiological conditions. The measured ISFSI gamma TLD exposure rates were also determined to be consistent with the calculated ISFSI dose rates and known radiological conditions.

We conclude that exposure attributable to the storage of used fuel in the ISFSI is not measurable beyond the immediate area of the ISFSI and is well below regulatory limits.

105

Table J-1 ISFSI TLD DATA Background adjusted Quarterly 2012 Quarterly Results (mR) 2012 Quarterly Results (mR) Annual 2012 Annual Location Background 1 2 3 4 1 2 3 4 Baseline Total (mR)

ISFSI 301 15 29.78 29.26 28.23 21.71 14.26 14.26 13.23 6.71 60 108.98 ISFSI 302 15 82.52 77.23 77.55 50.35 67.52 62.23 62.55 35.35 60 287.65 ISFSI 303 15 47.68 50.19 45.8 35.04 32.68 35.19 30.8 20.04 60 178.71 ISFSI 304 15 36.82 38.35 37.54 28.66 21.82 23.35 22.54 13.66 60 141.37 ISFSI 306 15 32.61 30.15 31.14 24.83 17.61 15.15 16.14 9.83 60 118.73 ISFSI 307 15 21.39 25.91 23.06 17.8 6.39 10.91 8.06 <LLD 60 88.16 ISFSI 308 15 21.78 21.07 21.17 19.22 6.78 6.07 6.17 <LLD 60 83.24 ISFSI 309 15 22.4 20.72 21.78 18.52 7.4 5.72 6.78 <LLD 60 83.42 ISFSI 310 15 22.89 21.47 21.39 18.18 7.89 6.47 6.39 <LLD 60 83.93 ISFSI 311 15 21.59 18.97 19.52 17.81 6.59 <LLD <LLD <LLD 60 77.89 ISFSI 312 15 16.27 14.44 14.7 13.71 <LLD <LLD <LLD <LLD 60 59.12 ISFSI 314 15 20.28 18.34 18.46 16.89 5.28 <LLD <LLD <LLD 60 73.97 ISFSI 315 15 20.24 18.14 17.69 16.79 5.24 <LLD <LLD <LLD 60 72.86 ISF51 316 15 19.48 19.33 23.2 17.51 <LLD <LLD 8.2 <LLD 60 79.52 ISFSI 317 15 23.5 24.17 24.92 18.04 8.5 9.17 9.92 <LLD 60 90.63 ISFSI 318 15 21.71 20.09 20.88 18.18 6.71 5.09 5.88 <LLD 60 80.86 ISFSI 319 15 22.62 20.16 21.12 18.01 7.62 5.16 6.12 <LLD 60 81.91 ISFSI 320 15 23.95 21.42 21.84 17.63 8.95 6.42 6.84 <LLD 60 84.84 ISFSI 321 15 23.27 22 23.28 18.62 8.27 7 8.28 <LLD 60 87.17 ISFSI 322 15 24.14 20.08 27.93 21.3 9.14 5.08 12.93 6.3 60 93.45 ISFSI 323 15 40.11 34.86 36.02 31.44 25.11 19.86 21.02 16.44 60 142.43 ISFSI 324 15 168.58 123.47 105.11 79.76 153.58 108.47 90.11 64.76 60 476.92 ISFSI 325 15 111.46 120.63 121.29 67.01 96.46 105.63 106.29 52.01 60 420.39 ISFSI 326 15 45.51 53.17 54.25 35.63 30.51 38.17 39.25 20.63 60 188.56 ISFSI 327 15 291.57 348.8 324.32 196.79 276.57 333.8 309.32 181.79 60 1161.48 ISFSI 328 15 174.64 211.39 207.9 102.09 159.64 196.39 192.9 87.09 60 696.02 55 San Onofre State Beach (Ul West) 15 22.16 19.67 19.51 17.58 7.16 <LLD <LLD <LLD 60 78.92 56 San Onofre State Beach (Ul West) 15 23.83 18.1 18.96 16 8.83 <LLD <LLD <LLD 60 76.89 57 San Onofre State Beach (Unit 2) 15 20.42 18.48 17.54 16.26 5.42 <LLD <LLD <LLD 60 72.7 59 SONGS Meteorological Tower 15 22.57 20.17 20.92 19.7 7.57 5.17 5.92 <LLD 60 83.36 106

TLD 63 0 4

.000 00 4*, (10CFR50 EAB

-N (i0CFR 50 Exclusion Area Boundary) %

11 "-D and I (10 CFR 72 Controlled Area Boundary)

TLD 64

.4 A

.4 U U I

TLD 41 0 U

I I I I Figure 6-1 I I ISFSI TLDs and U I REMP TLDs U within the EAB U I

ISFSM TLDs .4 C)REMP TL~s

-. TLD 15~

'I EAB

.4 (10 CFR 50 Exclusion Area I and CAB Sk (10 CFR 72 Controlled Area

-Seawa~it~encelne i Freeway Mai" Road LOI Sre.t Air Sampler 9

& TLD 66 500 0 500 to Feed Pb.kim. 20IiAAEOkFqYfl6-l41et ad  %  % 0 0 Pam GC#CRE%91tJ53#X.A6eOR 11 D" 037,i=2 Rn~,~co aa PlflWo .,t r.a mo l4, A SluAS3 a "Own. mpIm r~w are PN"4 *.a 2WW3* amt PACIFIC may dKO beW XaW" OCEAN 107

+ 321

+ 316 301+

REMP TLD 59 Figure 6-2 ISFSI TLDs and selected ISFSI Foundation, REMP TLDs near the ISFSI Foundation

+ ISFSI TLSs A Removed TLDs REMP TLDs

- SeawahlFencellne Major Road Railroad 100 0 100 F eN..,e 20iIAPEPvF~gt62lB PV %SOt4GSWO4X' I2 Pw... P-i.m.&MbyýTH(*MAS BROSMrPS 0 Th-m &o. MP. ?md 2M.-g~

Ile A*P~d. h010 . 0*~g "9~ w~ry and Wf.*' fý~tt 0 .ncts rP dg li 0 SCE0C" PptMMt - S-W "x g"it Se~ttoý 108

Direct Radiation Monitoring IISFSI & Selected REMP TLDs - Quarterly Gamma Exposure (mR/ std quarter) 25 20 0

. " U E

1+/-

10 5

0 N", EO o C T-0 3 C C C 9:

C: C C C C C1 EU El El t: El El -,.

.... TLD 31 - 18.6 miles NNW - TLD 56 - ISFSI 318

-,o TLD59 -wo TLD55 - ISFSI 321 Figure 6A 109

Appendix K Offsite Ground Water Sampling 110

Offsite Groundwater Data No drinking water pathway exists at SONGS. Refer to Figures 7-1 for a general indication of groundwater flow in the vicinity of SONGS.

In 2012 monthly ground water samples were taken at Camp Pendleton and Oceanside. The analysis results were less than detectable for tritium and plant related gamma emitters.

We conclude that the operation of SONGS had no impact on drinking water wells in the vicinity of SONGS.

111

11)

Sector B NNE Sector 0 NW Sector C Drinking Water WellsW unis 2/3 Midoo2nt A DrinSng Water Wells Sector N P D WGonwt Sector County FreewayBoundary 7-1.EN "

.... Highway Major Road W e Railroad G e FSector Sector

/ ES 050Oes 0.5 Majorto Roa FP4I Names: 20! 1AREOR Fqgw*7-1_tI14,dB~rdt P,* *SONS*AREORXD\AREO*2011 Sector L , '

O=N 0f7S2ct2 SW Sector K Sector H Sector om 03M712, ,,, "SW Seto K Sector SSESE 112