Text

Annual Radioactive Effluent Release Report - 2012
	ML13142A425
Person / Time
Site:	San Onofre
Issue date:	04/30/2013
From:	St.Onge R; Southern California Edison Co
To:	; Document Control Desk, NRC/FSME, Office of Nuclear Reactor Regulation
References
	Download: ML13142A425 (90)
	v • d • e

SOUTHERN CALIFORNIA JEDISONI An EDISON INTERNATIONAL Company Richard St. Onge Director, Nuclear Regulatory Affairs and Emergency-Planning April 30, 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 and 50-362 Annual Radioactive Effluent Release Report - 2012 San Onofre Nuclear Generating Station (SONGS), Units 1, 2, and 3

Dear Sir or Madam:

In accordance with 10 CFR 50.36(a), Unit 1 Permanently Defueled Technical Specification (TS)

Section D6.9.1.4, and Units 2 and 3 TS Section 5.7.1.3, Southern California Edison (SCE) is providing the Annual Radioactive Effluent Release Report - 2012 (ARERR) for San Onofre Nuclear Generating Station (SONGS), Units 1, 2, and 3. The period of the report is January 1, 2012 through December 31, 2012.

Unit 1 Permanently Defueled TS Section D6.14.2.3 and Units 2 and 3 TS Section 5.5.2.1.1(c) require revisions made to the Offsite Dose Calculation Manual (ODCM) for this reporting period to be submitted with the ARERR.

On August 9, 2012, S0123-ODCM, Revision 6 was issued and is included with this submittal.

To comply with TS 5.5.2.1.1(c), change bars are included on all affected pages.

This letter does not contain any commitments.

If you require additional information, please contact, Principal Manager of Nuclear Regulatory Assurance, Mr. Ryan I. Treadway, at (949) 368-9985.

Sincerely, Aoo P.O. Box 128 San Clemente. CA 92674

Document Control Desk April 30, 2013

Enclosures:

1) San Onofre Nuclear Generation Station, Annual Radioactive Effluent Release Report 2012 January - December

2) Revision 6 of the San Onofre Nuclear Generation Station (SONGS) Offsite Dose Calculation Manual (ODCM), S0123-ODCM

3) Offsite Dose Calculation Manual Nuclear Organization San Onofre Nuclear Generation Station Appendix A, SO1 23-ODCM-A, Revision 6, 08-09-12

4) Offsite Dose Calculation Manual Nuclear Organization San Onofre Nuclear Generation Station (SONGS) Appendix B, SO123-ODCM-B, Revision 6, 08-09-12 cc:

A. T. Howell Ill, NRC Regional Administrator, Region IV R. Hall, NRC Project Manager, SONGS Units 2 and 3 B. Benny, NRC Project Manager, SONGS Units 2 and 3 J. C. Shepherd, NRC Project Manager, SONGS Unit 1 G. G. Warnick, NRC Senior Resident Inspector, SONGS Units 2 and 3 J. E. Whitten, NRC Region IV, Nuclear Material Safety Branch Chief S. Y. Hsu, California Department of Public Health San Onofre Nuclear Generation Station, Annual Radioactive Effluent Release Report 2012 January - December

SAN ONOFRE NUCLEAR GENERATING STATION Annual Radioactive Effluent Release Report 2012 January - December

PREFACE San Onofre Nuclear Generating Station is located next to San Onofre State Beach, adjoining Camp Pendleton Marine Corps Base, in San Diego County, 64 miles south of Los Angeles, California.

There are two operating pressurized water reactors with a total rated capacity of 2254 net megawatts electrical.

Unit 1, rated at 410 net megawatts electrical, was supplied by Westinghouse Electric Company and began commercial operation on January 1, 1968. The unit was permanently shutdown on November 30, 1992. By August 31, 2004, all fuel was transferred to the Independent Spent Fuel Storage Installation (ISFSI). By November 29, 2006, all remaining monitored effluent pathways were permanently removed from service. Unit 1 is owned by Southern California Edison (80%) and San Diego Gas and Electric (20%).

Unit 2 and Unit 3 were supplied by Combustion Engineering, Inc., with turbine generators supplied by G.E.C. Turbine Generators, Ltd., of England. The units began commercial operation on August 18, 1983, and April 1, 1984, respectively and are rated at 1127 net megawatts electrical each. The twin units are owned by Southern California Edison (78.21%), San Diego Gas and Electric (20%),

and the City of Riverside (1.79%).

Effective December 29, 2006, the City of Anaheim has transferred its ownership interests in San Onofre Units 2 and 3 and the entitlement to the Units 2 and 3 output, to Southern California Edison Company, except that it retains its ownership interests in its spent nuclear fuel and Units 2 and 3's independent spent fuel storage installation located on the facility's site. In addition, the City of Anaheim retains financial responsibility for its spent fuel and for a portion of the Units 2 and 3 decommissioning costs. The City of Anaheim remains a licensee for purposes of its retained interests and liabilities.

-i-

TABLE OF CONTENTS SECTION A -

INTRODUCTION................................................................................................

1 SECTION B - GASEOUS EFFLUENTS........................................................................................

2 SECTION C - LIQUID EFFLUENTS............................................................................................

11 SECTION D PREVIOUS RADIOACTIVE EFFLUENT RELEASE REPORT ADDENDUM......

19 SECTION E RADW ASTE SHIPMENTS....................................................................................

22 U n its 2 & 3...............................................................................................................................

2 2 C o m m o n................................................................................................................................

2 5 SECTION F-APPLICABLE LIMITS............................................................................................

27 SECTION G - ESTIMATION OF ERROR....................................................................................

31 SECTION H - 10 CFR 50 APPENDIX I REQUIREMENTS.........................................................

32 SECTION I - CHANGES TO OFFSITE DOSE CALCULATION MANUAL...................................

36 SECTION J - CHANGES TO RADIOACTIVE WASTE TREATMENT SYSTEMS...................... 38 SECTION K MISCELLANEOUS.................................................................................................

39 A b no rm a l R e le a se s...............................................................................................................

3 9 Unplanned Monitored Releases......................................................................................

39 Effluent Monitoring Instruments Out of Service Greater Than 30 days.............................

41 Onsite Groundwater Samples..........................................................................................

50 40 CFR 190 Requirements..............................................................................................

65 C a rb o n -14.............................................................................................................................

6 6 SECTION L -SONGS CONCLUSIONS.......................................................................................

67 M E T E O R O L O G Y..............................................................................................................................

6 8

-ii-

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION A. INTRODUCTION This Annual Radioactive Effluent Release Report summarizes the gaseous and liquid radioactive effluent releases and radwaste shipments made from the San Onofre Nuclear Generating Station, Units 2 and 3. This report is prepared in the general format of USNRC Regulatory Guide 1.21, Revision 1, and includes:

1.

Quarterly Summaries of Gaseous and Liquid Effluents for "Continuous" and "Batch" Modes of Release

2.

Percent of Applicable Limits

3.

Estimated Total Percent Error

4.

Lower Limit of Detection Concentrations

5.

Batch Release Summaries

6.

Previous Radioactive Effluent Release Report Addendum

7.

Radwaste Shipments

8.

10 CFR 50 Appendix I Requirements

9.

Changes to Offsite Dose Calculation Manual ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT-2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION B. GASEOUS EFFLUENTS Table 1A, "Gaseous Effluents Summation of All Releases," provides a detailed listing of gaseous effluents released quarterly in four categories: fission and activation gases, iodine 131, particulates with half lives greater than eight days, and tritium. Listed for each of the four categories are:

(1) the total curies released (2) the average release rate (3) the percent of applicable limit (4) the estimated total error In addition, the particulate category lists the gross alpha radioactivity released for each quarter.

The methodology used to calculate the percent of Applicable Limit is presented in Section F of this report. The methodology used in Table 1A to calculate the estimated total error is presented in Section G of this report.

Table 1 B, "Gaseous Effluents Elevated Release," has not been included in this report since San Onofre Nuclear Generating Station Units 2 and 3 do not conduct elevated releases.

Table 1C, "Gaseous Effluents Ground Level Releases," provides the systematic listing by radionuclide for the quantity of radioactivity released in three categories: fission gases, iodines, and particulates. The total radioactivity for each radionuclide is listed for each quarterly period by both "continuous" and "batch" modes of release.

Waste gas decay tank releases are considered to be "batch" releases. Containment purges and plant stack releases are considered to be "continuous" releases.

Table 1 D, "Gaseous Effluents Lower Limit of Detection," provides a listing of lower limit of detection concentrations for radionuclides not detected in Tables 1A and 1C.

Table 1 E, "Gaseous Effluents Radiation Doses at the Site Boundary," provides a quarterly summary of doses at the site boundary for this report period.

Table 1 F, "Gaseous Effluents Batch Release Summary," provides summary information regarding batch releases conducted during this report period from San Onofre Nuclear Generating Station.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT-2012 SAN ONOFRE NUCLEAR GENERATING STATION TABLE 1A GASEOUS EFFLUENTS SUMMATION OF ALL RELEASES Unit First Quarter Second Quarter Estimated Total Error, %

A.

Fission and activation gases

1.

Total release Ci 9.88E+01 9.67E+00

2.

Average release rate for period pCi/sec 1.26E+01 1.23E+00 3.00E+01

3.

Percent of applicable limit

% MPC 2.29E-02 1.97E-03

4.

Percent Effluent Concentration Limit

% ECL 2.47E-02 8.43E-04 B.

lodines

1.

Total I-131 Ci 3.29E-04 2.31 E-06

2.

Average release rate for period pCi/sec 4.18E-05 2.94E-07 1.90E+01

3.

Percent of applicable limit

% MPC 2.01 E-04 1.41 E-06

4.

Percent Effluent Concentration Limit

% ECL 1.OOE-04 7.05E-07 C.

Particulates

1.

Particulates with half-lives >8 days Ci 3.55E-04 2.15E-05

2.

Average release rate for period pCi/sec 4.51 E-05 2.74E-06 1.60E+01

3.

Percent of applicable limit

% MPC 1.22E-05 7.76E-07

4.

Percent Effluent Concentration Limit

% ECL 3.30E-05 2.12E-06

5.

Gross alpha activity Ci

<LLD

<LLD 5.OOE+01 D.

Tritium

1.

Total release Ci 2.07E+01 1.34E+01

2.

Average release rate for period pCi/sec 2.63E+00 1.70E+00 2.50E+01

3.

Percent of applicable limit

% MPC 6.32E-03 4.09E-03

4.

Percent Effluent Concentration Limit

% ECL 1.26E-02 8.18E-03 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION TABLE 1A (Continued)

GASEOUS EFFLUENTS SUMMATION OF ALL RELEASES Unit Third Quarter Fourth Quarter Estimated Total Error. %

A.

Fission and activation gases

1.

Total release Ci 2.39E+00 1.84E+00

2.

Average release rate for period pCi/sec 3.01 E-01 2.31E-01 3.00E+01

3.

Percent of applicable limit

% MPC 4.81 E-04 3.70E-04

4.

Percent Effluent Concentration Limit

% ECL 2.06E-04 1.59E-04 B.

lodines

1.

Total 1-131 Ci

<LLD

2.

Average release rate for period pCi/sec N/A N/A I1.90E+01

3.

Percent of applicable limit

% MPC N/A N/A

4.

Percent Effluent Concentration Limit

% ECL N/A N/A C.

Particulates

1.

Particulates with half-lives >8 days Ci 1.48E-07 3.60E-08

2.

Average release rate for period pCi/sec 1.86E-08 4.53E-09 1.60E+01

3.

Percent of applicable limit

% MPC 4.47E-09 1.09E-09

4.

Percent Effluent Concentration Limit

% ECL 8.94E-09 2.17E-09

5.

Gross alpha activity Ci

<LLD

<LLD 5.00E+01 D.

Tritium

1.

Total release Ci 1.76E+01 3.82E+01

2.

Average release rate for period pCi/sec 2.21 E+00 4.81 E+00 2.50E+01

3.

Percent of applicable limit

% MPC 5.31E-03 1.15E-02

4.

Percent Effluent Concentration Limit

% ECL 1.06E-02 2.31 E-02 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION TABLE IC GASEOUS EFFLUENTS GROUND LEVEL RELEASES CONTINUOUS MODE First Second Third Fourth Radionuclides Released Unit Quarter Quarter Quarter Quarter 1

Fission and activation gases argon-41 Ci 2.14E+00

<LLD

<LLD krypton-85 Ci 2.93E+00 3.39E+00 2.39E+00

<LLD krypton-85m Ci 3.47E-04

<LLD

<LLD krypton-87 Ci 5.20E-04

<LLD

<LLD krypton-88 Ci 6.13E-04

<LLD

<LLD xenon-131m Ci 3.39E-01

<LLD

<LLD xenon-133 Ci 9.14E+01

<LLD

<LLD xenon-133m Ci 3.02E-01

<LLD

<LLD xenon-135 Ci 4.35E-02

<LLD

<LLD xenon-135m Ci 7.69E-04

<LLD

<LLD xenon-138 Ci 1.85E-03

<LLD

<LLD Total for period Ci 9.71 E+01 3.39E+00 2.39E+00

<LLD

2.

lodines iodine-131 Ci 3.29E-04 2.31E-06

<LLD

<LLD iodine-132 Ci 4.47E-06

<LLD

<LLD iodine-133 Ci 1.07E-04

<LLD

<LLD iodine-135 Ci 4.61E-06

<LLD

<LLD Total for period Ci 4.45E-04 2.31E-06

<LLD

<LLD LLD Lower Limit of Detection; see Table 1 D.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION TABLE 1C (Continued)

GASEOUS EFFLUENTS-GROUND LEVEL RELEASES CONTINUOUS MODE First Second Third Fourth Radionuclides Released Unit Quarter Quarter Quarter Quarter

3.

Particulates barium-140 Ci

<LLD

<LLD bromine-82 Ci 6.93E-05

<LLD

<LLD cerium-141 Ci

<LLD

<LLD cerium-144 Ci

<LLD

<LLD cesium-134 Ci

<LLD

<LLD cesium-137 Ci 6.46E-06 5.09E-08

<LLD

<LLD chromium-51 Ci 3.31E-05 5.17E-07

<LLD

<LLD cobalt-58 Ci 2.98E-04 1.94E-05 1.48E-07 3.60E-08 cobalt-60 Ci 1.02E-05 7.12E-07

<LLD

<LLD iron-59 Ci 1.50E-07

<LLD

<LLD lanthanum-140 Ci

<LLD

<LLD manganese-54 Ci 2.55E-07 1.77E-07

<LLD

<LLD molybdenum-99 Ci

<LLD

<LLD niobium-95 Ci 6.12E-06 4.51E-07

<LLD

<LLD strontium-89 Ci

<LLD

<LLD strontium-90 Ci

<LLD

<LLD zinc-65 Ci

<LLD

<LLD zirconium-95 Ci 5.34E-07 1.96E-07

<LLD

<LLD LLD Lower Limit of Detection; see Table 1D.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION TABLE 1C (Continued)

GASEOUS EFFLUENTS GROUND LEVEL RELEASES BATCH MODE

First Second Third Fourth Radionuclides Released Unit Quarter Quarter Quarter **

Quarter 1

Fission and activation gases krypton-85 Ci 1.66E+00 6.28E+00 N/A 1.84E+00 krypton-85m Ci

<LLD

<LLD N/A

<LLD krypton-87 Ci

<LLD

<LLD N/A

<LLD krypton-88 Ci

<LLD

<LLD N/A

<LLD xenon-133 Ci

<LLD

<LLD N/A

<LLD xenon-133m Ci

<LLD

<LLD N/A

<LLD xenon-135 Ci

<LLD

<LLD N/A

<LLD xenon-135m Ci

<LLD

<LLD N/A

<LLD xenon-138 Ci

<LLD

<LLD N/A

<LLD Total for period Ci 1.66E+00 6.28E+00 N/A 1.84E+00 LLD Lower Limit of Detection; see Table 1 D.

lodines and particulates are not analyzed prior to release via batch mode.

No batch releases were conducted in the third quarter of 2012.

-7.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION TABLE 1D GASEOUS EFFLUENTS LOWER LIMIT OF DETECTION CONTINUOUS and BATCH MODE Continuous Mode Batch Mode Radionuclides LLD (pCi/cc)

LLD (pCi/cc) 1 Fission and activation gases argon-41 4.70E-07 N/A krypton-85 3.OOE-05 krypton-85m 7.50E-08 3.1OE-06 krypton-87 3.80E-07 1.40E-05 krypton-88 2.70E-07 1.10E-05 xenon-131m 2.50E-06 N/A xenon-133 2.60E-07 9.90E-06 xenon-133m 6.OOE-07 2.70E-05 xenon-135 7.70E-08 3.50E-06 xenon-135m 2.90E-06 4.40E-05 xenon-138 5.OOE-06 6.70E-05

2.

lodines iodine-131 3.60E-13 N/A iodine-132 2.1OE-09 N/A iodine-133 3.50E-12 N/A iodine-135 2.40E-10 N/A

3.

Particulates barium-140 7.20E-13 N/A bromine-82 1.80E-12 N/A cerium-141 8.30E-14 N/A cerium-144 3.40E-13 N/A cesium-134 2.OOE-13 N/A cesium-137 1.70E-13 N/A chromium-51 7.70E-13 N/A cobalt-60 2.90E-13 N/A iron-59 4.50E-13 N/A lanthanum-140 1.40E-12 N/A manganese-54 1.80E-13 N/A molybdenum-99 1.OOE-13 N/A niobium-95 1.80E-13 N/A Radionuclide was >LLD in all quarters where batch releases were conducted.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT-2012 SAN ONOFRE NUCLEAR GENERATING STATION TABLE 1 D (Continued)

GASEOUS EFFLUENTS LOWER LIMIT OF DETECTION CONTINUOUS and BATCH MODE Continuous Mode Batch Mode Radionuclides LLD (pCi/cc)

LLD (pCi/cc)

3.

Particulates (Continued) strontium-89 1.OOE-11 N/A strontium-90 1.O0E-11 N/A zinc-65 4.80E-13 N/A zirconium-95 3.10E-13 N/A

4.

alpha 1.00E-11 N/A TABLE 1E GASEOUS EFFLUENTS RADIATION DOSES AT THE SITE BOUNDARY First Second Third Fourth Radionuclides Released Unit Quarter Quarter Quarter Quarter A.

Noble Gas

1.

Gamma Air Dose mrad 7.99E-03 2.53E-05 6.26E-06 4.81 E-06

2.

Percent Applicable Limit 7.99E-02 2.53E-04 6.26E-05 4.81 E-05

3.

Beta Air Dose mrad 1.72E-02 2.87E-03 7.1OE-04 5.46E-04

4.

Percent Applicable Limit 8.59E-02 1.43E-02 3.55E-03 2.73E-03 B.

Tritium, Iodine, Particulates (at the nearest receptor)

1.

Organ Dose mrem 4.20E-03 2.07E-03 2.38E-03 4.92E-03

2.

Percent Applicable Limit 2.80E-02 1.38E-02 1.58E-02 3.28E-02 NOTE:

Calculations performed in accordance with the ODCM utilizing the historical X/Q.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION TABLE 1F GASEOUS EFFLUENTS BATCH RELEASE

SUMMARY

12 month period

1.

Number of batch releases:

6 releases

2.

Total time period for batch releases:

2585 minutes

3.

Maximum time period for a batch release:

521 minutes

4.

Average time period for a batch release:

431 minutes

5.

Minimum time period for a batch release:

349 minutes ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT-2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION C. LIQUID EFFLUENTS Table 2A, "Liquid Effluents Summation of All Releases," provides a detailed summary of liquid effluents released quarterly in three categories: fission and activation products, tritium, and dissolved and entrained gases. Listed for each of the three categories are:

(1) the total curies released (2) the average diluted concentration (3) the percent of applicable limit (4) the estimated total error In addition, Table 2A lists:

(1) the gross alpha radioactivity (2) the volume of waste released (prior to dilution)

(3) the volume of dilution water The methodology used to calculate the percent of applicable limit is presented in Section F of this report. The methodology used to calculate the estimated total error in Table 2A is presented in Section G of this report.

Table 2B, "Liquid Effluents," provides the systematic listing by radionuclide for the quantity of radioactivity released in each category. The total radioactivity of each radionuclide released is listed for each quarterly period by both "continuous" and "batch" modes of release.

Table 2C, "Liquid Effluents Lower Limit of Detection," provides a listing of lower limit of detection concentrations for radionuclides not detected in Table 2B.

Table 2D, "Liquid Effluents Radiation Doses at the Liquid Site Boundary," presents a quarterly summary of doses at the Liquid Site Boundary for this report period.

Table 2E, "Liquid Effluents Batch Release Summary," provides summary information regarding batch releases conducted during this report period from San Onofre Nuclear Generating Station.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION TABLE 2A LIQUID EFFLUENTS SUMMATION OF ALL RELEASES Unit First Quarter Second Quarter Estimated Total Error, %

A.

Fission and activation products

1.

Total release (not including tritium, Ci 3.49E-02 3.09E-02 gases, alpha)

2.

Average diluted concentration pCi/mI 6.02E-1 1 5.57E-1 1 during period

___i/m 6.2-1 55E1 1.90E+01

3.

Percent of applicable limit

% MPC 1.84E-04 7.76E-05

4.

Percent Effluent Concentration Limit

% ECL 3.76E-04 3.24E-04 B.

Tritium

1.

Total release Ci 4.80E+02 2.74E+02

2.

Average diluted concentration pCi/mI 8.29E-07 4.94E-07 during period

_il.90 44-1.90E+01

3.

Percent of applicable limit

% MPC 2.76E-02 1.65E-02

4.

Percent Effluent Concentration Limit

% ECL 8.29E-02 4.94E-02 C.

Dissolved and entrained gases

1.

Total release Ci 2.85E+00 2.65E-01

2.

Average diluted concentration iCi/ml 4.92E-09 4.77E-10 during period

_il.20 47-1.90E+01

3.

Percent of applicable limit

% MPC 2.46E-03 2.38E-04

4.

Percent Effluent Concentration Limit

% ECL 2.46E-03 2.38E-04 D.

Gross alpha activity

1.

Total release Ci

<LLD

<LLD 5.OOE+01 E.

Volume of waste released (batch &

continuous, prior to dilution) liters 2.48E+07 7.55E+06 5.OOE+00 F.

Volume of dilution water used during period liters 5.79E+ 11 5.55E+11 5.OOE+00 NOTES:

1) Unit 2 Turbine Plant Sump grab samples were missed from 2/1/2012 to 2/3/2012. The weekly composite was made up using the remaining grab samples for the week. The curies released are included in Table 2A. Notification 201841920.

2).Unit 2 Hotwell Overboard sample collected on 1/9/2012 was not saved for hard-to-detect isotope analysis. Prior and subsequent samples were <MDA. There was no dose impact to a member of the public from this event. Notification 201831009.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION TABLE 2A (Continued)

LIQUID EFFLUENTS SUMMATION OF ALL RELEASES Unit Third Quarter Fourth Quarter Estimated Total Error, %

A.

Fission and activation products

1.

Total release (not including tritium, Ci 3.28E-02 1.59E-02 gases, alpha)

2.

Average diluted concentration PCi/mI 5.87E-1 I 2.99E-1 1 during period 1.90E+01

3.

Percent of applicable limit

% MPC 8.81 E-05 4.30E-05

4.

Percent Effluent Concentration Limit

% ECL 4.96E-04 2.84E-04 B.

Tritium

1.

Total release Ci 1.26E+02 9.34E+01

2.

Average diluted concentration pCi/mI 2.25E-07 1.75E-07 during period

__i/ml 2.25E-07 1.75E-07 1.90E+01

3.

Percent of applicable limit

% MPC 7.51 E-03 5.84E-03

4.

Percent Effluent Concentration Limit

% ECL 2.25E-02 1.75E-02 C.

Dissolved and entrained gases

1.

Total release Ci 8.43E-02 6.20E-02

2.

Average diluted concentration during period pCi/mI 1.5E-1 1.16E-10 1.90E+01

3.

Percent of applicable limit

% MPC 7.54E-05 5.82E-05

4.

Percent Effluent Concentration Limit

% ECL 7.54E-05 5.82E-05 D.

Gross alpha activity

1.

Total release Ci

<LLD

<LLD 5.OOE+01 E.

Volume of waste released (batch &

continuous, prior to dilution) liters 2.32E+06 3.51 E+06 5.OOE+00 F.

Volume of dilution water used during period liters 5.59E+11 5.33E+ 11 5.OOE+00 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION TABLE 2B LIQUID EFFLUENTS CONTINUOUS MODE First Second Third Fourth Radionuclides Released Unit Quarter Quarter Quarter Quarter 1

Fission and activation products barium-140 Ci

<LLD

<LLD cerium-141 Ci

<LLD

<LLD cerium-144 Ci

<LLD

<LLD cesium-134 Ci 8.91E-07

<LLD

<LLD cesium-136 Ci 2.01E-07

<LLD

<LLD cesium-137 Ci 8.OOE-07

<LLD

<LLD chromium-51 Ci

<LLD

<LLD cobalt-58 Ci 4.04E-06 2.74E-04 7.25E-06

<LLD cobalt-60 Ci

<LLD

<LLD iodine-131 Ci 1.14E-05

<LLD

<LLD iodine-132 Ci 6.22E-07

<LLD

<LLD iodine-133 Ci 4.18E-06

<LLD

<LLD iodine-135 Ci 1.20E-06

<LLD

<LLD iron-55 Ci

<LLD

<LLD iron-59 Ci

<LLD

<LLD lanthanum-140 Ci

<LLD

<LLD manganese-54 Ci

<LLD

<LLD molybdenum-99 Ci

<LLD

<LLD niobium-95 Ci

<LLD

<LLD sodium-24 Ci 9.27E-07

<LLD

<LLD strontium-89 Ci

<LLD

<LLD strontium-90 Ci

<LLD

<LLD technetium-99m Ci

<LLD

<LLD zinc-65 Ci

<LLD

<LLD zirconium-95 Ci

<LLD

<LLD Total for period Ci 2.42E-05 2.74E-04 7.25E-06

<LLD

2.

Dissolved and entrained gases krypton-85m Ci 3.06E-07

<LLD

<LLD xenon-133 Ci 7.14E-05

<LLD

<LLD xenon-133m Ci 1.87E-06

<LLD

<LLD xenon-135 Ci 9.32E-06

<LLD

<LLD Total for period Ci 8.29E-05

<LLD

<LLD LLD Lower Limit of Detection; see Table 2C.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION TABLE 2B (Continued)

LIQUID EFFLUENTS BATCH MODE First Second Third Fourth Radionuclides Released Unit Quarter Quarter Quarter Quarter 1

Fission and activation products antimony-124 Ci

<LLD 1.96E-04 1.38E-04

<LLD antimony-125 Ci 1.02E-03 4.27E-04 1.07E-03 6.56E-04 barium-140 Ci

<LLD

<LLD cerium-141 Ci

<LLD

<LLD cerium-144 Ci

<LLD

<LLD cesium-134 Ci 1.16E-04 4.73E-05 4.88E-05 4.07E-05 cesium-136 Ci 1.05E-05

<LLD

<LLD cesium-137 Ci 2.47E-04 1.61 E-04 7.28E-05 4.82E-05 chromium-51 Ci 6.89E-03 2.90E-03 1.21 E-03

<LLD cobalt-57 Ci 9.85E-06 7.14E-05 2.51E-04 8.66E-05 cobalt-58 Ci 1.61 E-02 1.93E-02 1.96E-02 3.50E-03 cobalt-60 Ci 1.49E-03 1.15E-03 3.89E-03 2.49E-03 iodine-131 Ci 2.09E-04

<LLD

<LLD iron-55 Ci 5.80E-03 3.25E-03

<LLD 5.74E-03 iron-59 Ci 7.51E-04 1.46E-04 1.83E-04

<LLD lanthanum-140 Ci

<LLD

<LLD manganese-54 Ci 3.61E-04 5.07E-04 1.49E-03 8.17E-04 molybdenum-99 Ci

<LLD

<LLD niobium-95 Ci 1.06E-03 1.27E-03 2.90E-03 6.12E-04 niobium-97 Ci 9.08E-06

<LLD

<LLD silver-11Orn Ci 5.48E-05 1.27E-04 1.46E-04 1.55E-03 strontium-89 Ci

<LLD

<LLD strontium-90 Ci

<LLD

<LLD technetium-99m Ci

<LLD

<LLD tin-113 Ci 2.34E-05 3.15E-05

<LLD

<LLD tin-117m Ci 3.30E-05 3.14E-04 1.13E-04 4.37E-05 zinc-65 Ci

<LLD

<LLD 1.86E-04 4.38E-05 zirconium-95 Ci 6.75E-04 7.09E-04 1.51E-03 3.21E-04 Total for period Ci 3.49E-02 3.06E-02 3.28E-02 1.59E-02

2.

Dissolved and entrained gases krypton-85 Ci 8.35E-01 2.63E-01 8.43E-02 6.20E-02 xenon-131m Ci 6.41E-02 1.30E-03

<LLD

<LLD xenon-133 Ci 1.95E+00 3.04E-04

<LLD

<LLD xenon-133m Ci 1.63E-03

<LLD

<LLD xenon-135 Ci 5.70E-05

<LLD

<LLD Total for period Ci 2.85E+00 2.64E-01 8.43E-02 6.20E-02 LLD Lower Limit of Detection; see Table 2C.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION TABLE 2C LIQUID EFFLUENTS LOWER LIMIT OF DETECTION Continuous Mode Batch Mode Radionuclides LLD (pCi/cc)

LLD (pCi/cc) 1 Fission and activation products antimony-124 N/A 2.60E-07 barium-140 3.OOE-07 2.50E-07 cerium-141 4.60E-08 4.30E-08 cerium-144 1.90E-07 1.90E-07 cesium-134 8.OOE-08 cesium-136 1.40E-07 1.10E-07 cesium-137 6.80E-08 chromium-51 3.50E-07 3.20E-07 cobalt-58 7.20E-08 cobalt-60 1.OOE-07 iodine-131 6.10E-08 4.60E-08 iodine-132 5.OOE-03 N/A iodine-133 7.OOE-07 N/A iodine-135 7.70E-05 N/A iron-55 1.OOE-06 1.OOE-06 iron-59 1.70E-07 1.60E-07 lanthanum-140 5.80E-07 1.90E-07 manganese-54 7.1OE-08 molybdenum-99 6.1 OE-08 2.80E-08 niobium-95 7.20E-08 niobium-97 N/A 1.60E-07 sodium-24 2.50E-06 N/A strontium-89 5.O0E-08 5.OOE-08 strontium-90 5.OOE-08 5.OOE-08 technetium-99m 6.20E-08 2.90E-08 tin-113 N/A 5.70E-08 zinc-65 1.80E-07 1.80E-07 zirconium-95 1.20E-07

2.

Dissolved and entrained gases krypton-85 3.1OE-05 xenon-131 m N/A 3.20E-06 xenon-133 2.60E-07 2.60E-07 xenon-133m 7.30E-07 7.30E-07 xenon-135 9.40E-08 9.40E-08

3.

gross alpha 1.OOE-07 1.OOE-07 Radionuclide was >LLD in all 4 quarters N/A Radionuclide not detected in this mode of releases ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT-2012 SAN ONOFRE NUCLEAR GENERATING STATION TABLE 2D LIQUID EFFLUENTS RADIATION DOSES AT THE LIQUID SITE BOUNDARY First Second Third Fourth Unit Quarter Quarter Quarter Quarter A.

1.

Total body dose mrem 1.61 E-03 1.09E-03 1.10E-03 9.52E-04

2.

Percent Applicable Limit 5.37E-02 3.65E-02 3.65E-02 3.17E-02 B.

1.

Limiting organ dose mrem 6.30E-03 5.29E-03 6.23E-03 1.05E-02

2.

Percent Applicable Limit 6.30E-02 5.29E-02 6.23E-02 1.05E-01

3.

Limiting organ for period GI/LLI GI/LLI GI/LLI GI/LLI ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION TABLE 2E LIQUID EFFLUENTS BATCH RELEASE

SUMMARY

12 month period

1.

Number of batch releases:

65 releases

2.

Total time period for batch releases:

20104 minutes

3.

Maximum time period for a batch release:

1685 minutes

4.

Average time period for a batch release:

309 minutes

5.

Minimum time period for a batch release:

52 minutes

6.

Average saltwater flow during batch releases:

612000 gpm ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION D. PREVIOUS RADIOACTIVE EFFLUENT RELEASE REPORT ADDENDUM 2010 ARERR In the 2010 ARERR, Section E, Radwaste Shipments, TABLE 3 (Units 2 & 3), Section A did not include a footnote stating "Shipments included: Dry Active Waste (DAW). DAW packaged and shipped in various size General Design Containers".

2011 ARERR In the 2011 ARERR, Section E, Radwaste Shipments, TABLE 3 (Units 2 & 3), Section A did not include a footnote stating "Shipments included: Dry Active Waste (DAW), U2 Original Steam Generator Lower Assembly (OSGLA), Filters and Spent Resin. DAW packaged and shipped in various size General Design Containers, (one) Type A Cask and various USA DOT 7A Type A Intermodals, U2 OSGLA packaged for transport in accordance with U.S. Department of Transportation Special Permit DOT-SP 15209 and shipped as General Design package. Spent Resin shipped in (one) Type A Cask".

In the 2011 ARERR, fourth quarter results for the composite samples were not available at the time that the report was submitted. The corrected data are as follows:

Section C. LIQUID EFFLUENTS TABLE 2A, LIQUID EFFLUENT SUMMATION OF ALL RELEASES Unit I

Fourth Quarter A.

Fission and activation products

1.

Total release (not including Ci 9.50E-03 tritium, gases, alpha)

2.

Average diluted concentration pCi/mI 1.23E-1 1 during period

3.

Percent of applicable limit

% MPC 3.06E-05 Percent Effluent Concentration

% ECL 7.34E-05 Limit D.

Gross alpha activity

1.

Total release Ci

<LLD

LLD value as listed in Table 2C in 2011 ARERR ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION Section C. LIQUID EFFLUENTS (Continued)

TABLE 2B, LIQUID EFFLUENTS CONTINUOUS BATCH MODE MODE Fourth Fourth Radionuclides Released Unit Quarter Quarter

1.

Fission and activation products iron-55 Ci

<LLD

2.91E-03 strontium-89 Ci

<LLD *

<LLD

strontium-90 Ci

<LLD *

<LLD

Total for period Ci

<LLD

9.50E-03 LLD value as listed in Table 2C in 2011 ARERR TABLE 2D, LIQUID EFFLUENTS RADIATION DOSES AT THE LIQUID SITE BOUNDARY Fourth Unit Quarter A.

1.

Total body dose mrem 1.44E-03

2.

Percent Applicable Limit 4.80E-02 B.

1.

Limiting organ dose mrem 2.20E-03

2.

Percent Applicable Limit 2.20E-02

3.

Limiting organ for period GI-LLI ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION H, 10 CFR 50 APPENDIX I REQUIREMENTS TABLE 1 Dose * (millirems)

Fourth SOURCE Quarter Year LIQUID EFFLUENTS

4) 5)

Whole Body 1.44E-03 2.16E-03

9) 10)

Organ 2.20E-03 3.20E-03 The numbered footnotes below briefly explain how each maximum dose was calculated, including the organ and the predominant pathway(s).

4.

This value was calculated using the methodology of the ODCM.

5.

This value was calculated using the methodology of the ODCM.

9.

This value was calculated using the methodology of the ODCM; the GI-LLI received the maximum dose primarily by the saltwater fish pathway.

10. This value was calculated using the methodology of the ODCM; the GI-LLI received the maximum dose primarily by the saltwater fish pathway.

TABLE 2 Percent Applicable Limit Fourth SOURCE Quarter Year LIQUID EFFLUENTS Whole Body 4.80E-02 3.60E-02 Organ 2.20E-02 1.60E-02 SECTION K, MISCELLANEOUS, 40 CFR 190 REQUIREMENTS Dose Category Units Year

2.

Limiting Organ

a.

Organ Dose (GI-LLI) mrem 1.24E-02

b.

Percent ODCM Specification Limit 4.94E-02 SECTION L. SONGS CONCLUSIONS Liquid releases totaled 1.16+03 curies of which particulates and iodines were 1.25E-02 curies, tritium was 1.16E+03 curies, and noble gases were 1.03E+00 curies.

The radiation doses from liquid releases were: (a) total body: 2.16E-03 mrem, (b) limiting organ (GI-LLI): 3.20E-03 mrem.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT-2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION E. RADWASTE SHIPMENTS TABLE 3 (Units 2 & 3)

SOLID WASTE AND IRRADIATED FUEL SHIPMENT A.

SOLID WASTE SHIPPED OFFSITE FOR BURIAL OR DISPOSAL (Not Irradiated Fuel) 12 month Estimated

1.

Type of waste Unit period total error (%)

a.

Spent resins, filter sludges m3 N/A N/A Ci N/A

b.

Dry active waste (DAW), compactable m3 9.57E+02 and non compactable 3.OOE+01 Ci 1.15E+02

c.

Irradiated components m3 N/A N/A Ci N/A

d.

Other: Filters m3 N/A N/A Ci N/A Notes:

Total curie content estimated Shipments included: Dry Active Waste (DAW), U3 Original Steam Generator Lower Assemblies (OSGLA), U2 Control Element Drive Mechanisms (CEDM). DAW packaged and shipped in various size General Design containers and one Type A Cask, OSGLAs packaged for transported in accordance with U.S Department of Transportation Special Permit DOT-SP 15209 and shipped as General Design package, U2 CEDMs packaged and shipped in USA DOT 7A Type A containers.

N/A No shipment made.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT-2012 SAN ONOFRE NUCLEAR GENERATING STATION A.

SOLID WASTE SHIPPED OFFSITE FOR BURIAL OR DISPOSAL (Not Irradiated Fuel)

2.

Estimate of major nuclide composition (DAW)

a.

not applicable N/A

b.

americium-241 3.06E-05 antimony-124 2.37E-03 antimony-125 1.50E+00 carbon-14 1.95E-02 cerium-144 9.95E-04 cesium-134 1.57E-03 cesium-137 1.48E-01 chromium-51 7.99E-02 cobalt-57 1.74E-01 cobalt-58 1.58E+00 cobalt-60 2.28E+01 curium-242 5.76E-07 curium-243/244 1.67E-05 hafnium-181 1.46E-05 iodine-131 2.16E-06 iron-55 6.59E+01 iron-59 1.17E-02 manganese-54 2.86E+00 nickel-63 4.71 E+00 niobium-95 3.82E-02 plutonium-238 3.01 E-05 ruthenium-103 1.41 E-05 strontium-90 1.84E-04 tin-113 4.70E-02 zinc-65 7.34E-02 zirconium-95 1.03E-01

c.

not applicable N/A

d.

not applicable N/A ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION A.

SOLID WASTE SHIPPED OFFSITE FOR BURIAL OR DISPOSAL (Not Irradiated Fuel)

3.

Solid Waste Disposition Number of Shipments Mode of Transportation Destination 9

Truck / Flatbed Trailer EnergySolutions Utah 2

Truck / Special Trailer EnergySolutions Utah

19 Truck / Flatbed Trailer EnergySolutions Bear Creek Operations

2 Truck / Type A Cask Toxco Inc SONGS maintains a contract with EnergySolutions (BearCreek) and TOXCO Inc, for waste processing/volume reduction services. The processed volume was shipped from the EnergySolutions BearCreek facility to the EnergySolutions disposal facility in Clive, Utah using 49 shipments. Those 49 shipments included waste from other generators, SCE's waste volume was a small fraction of the total waste included in these shipments. TOXCO did not ship SONGS waste to a disposal site in 2012.

B.

IRRADIATED FUEL SHIPMENTS (Disposition)

Number of Shipments Mode of Transportation Destination None No shipments were made N/A C.

DEWATERING Number of Containers Solidification Agent None N/A ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION E. RADWASTE SHIPMENTS TABLE 3 (COMMON)

SOLID WASTE AND IRRADIATED FUEL SHIPMENT A.

SOLID WASTE SHIPPED OFFSITE FOR BURIAL OR DISPOSAL (Not Irradiated Fuel) 12 month Estimated

1.

Type of waste Unit period total error (%)

a.

Spent resins, filter sludges, m3 N/A N/A evaporator bottoms Ci N/A

b.

Dry active waste (DAW), compactable m3 N/A N/A and non-compactable Ci N/A m3 N/A

c.

Irradiated components N/A Ci N/A m 3 N/A

d.

Other: Filters N/A Ci N/A N/A No shipment made.

2.

Estimate of major nuclide composition (by type of waste)

a.

not applicable N/A

b.

not applicable N/A

c.

not applicable N/A

d.

not applicable N/A

3.

Solid Waste Disposition (SONGS 1, 2, and 3)

Number of Shipments Mode of Transportation Destination None No shipments were made N/A ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SOLID WASTE AND IRRADIATED FUEL SHIPMENT B.

IRRADIATED FUEL SHIPMENTS (Disposition)

Number of Shipments Mode of Transportation Destination None No shipments were made N/A C.

DEWATERING Number of Containers Solidification Agent None N/A D.

CHANGES TO THE PROCESS CONTROL PROGRAM AT SAN ONOFRE UNITS 1, 2 & 3 None.

REFERENCES:

1. Unit 1 Technical Specifications, section D6.13.2.

2.

Units 2 and 3 License Controlled Specifications, section 5.0.103.2.2.

3. Procedure S0123-VII-8.5.1 (Rev. 10 EC2) "Radwaste Process Control Program".

4. Procedure S0123-VII-8.1.6 (Rev. 6 ECl) "Radioactive Waste Shipment Data For The Annual Effluent Release Report"

5. Regulatory Guide 1.21, Rev. 1, June 1974.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT-2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION F. APPLICABLE LIMITS Gaseous Effluents Applicable Limits The percent of Applicable Limits, tabulated in Sections A, B, C, and D of Table 1A, were calculated using the following equation:

% Applicable Limit where: Rel Rate X/Q MPC eff where: Fj n

MPCi

=

(Rel Rate) (X/Q) (100)

MPCeff

=

total curies released in each category and each quarter, divided by the seconds in a quarter; the value in Sections A.2, B.2, C.2 and D.2 of Table 1A, pCi/sec.

4.80E-6 sec/m 3; the annual average atmospheric dispersion defined in the ODCM.

I n~ Fi i=' MPC i fractional abundance of the ith radionuclide obtained by dividing the activity (curies) for each radionuclide, Ci, by the sum of all the isotopic activity, CT.

=

total number of radionuclides identified

=

Maximum Permissible Concentration (MPC) of the ith radionuclide from 10 CFR 20 (20.1-20.602), Appendix B, Table II, Column 1.

% ECL (Rel Rate) (X/Q) (100)

ECLeff where: Rel Rate X/Q total curies released in each category and each quarter, divided by the seconds in a quarter; the value in Sections A.2, B.2, C.2 and D.2 of Table 1A, pCi/sec.

4.80E-06 sec/m 3; the annual average atmospheric dispersion defined in the ODCM.

n Fi i=, ECL i fractional abundance of the ith radionuclide obtained by dividing the activity (curies) for each radionuclide, Ci, by the sum of all the isotopic activity, CT.

ECL eff where: Fj n

=

total number of radionuclides identified ECLi

=

Effluent Concentration Limit (ECL) of the ith radionuclide from 10 CFR 20 (20.1001-20.2402), Appendix B, Table 2, Column 1.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION F. APPLICABLE LIMITS (Continued)

Liquid Effluents Applicable Limits The percent of Applicable Limits, tabulated in Sections A, B, and C of Table 2A, were calculated using the following equations:

% Applicable Limit where: Dil Conc

MPC eff where: F, n

MPCi

% ECL where:

Dil Conc ECL eff

=

(Dil Conc) (100)

MPCeff total curies released in each category and each quarter divided by the total volume released (sum of Sections E and F in Table 2A); the value in Sections A.2, B.2, and C.2 of Table 2A, pCi/ml.

n Fj i=' MPC i fractional abundance of the ith radionuclide obtained by dividing the activity (curies) for each radionuclide, C,, by the sum of all the isotopic activity, CT.

=

total number of radionuclides identified Maximum Permissible Concentration (MPC) of the ith radionuclide from 10 CFR 20 (20.1-20.602), Appendix B, Table II, Column 2.

(Dil Conc) (100)

ECLeff total curies released in each category and each quarter divided by the total volume released (sum of Sections E and F in Table 2A); the value in Sections A.2, B.2, and C.2 of Table 2A, pCi/ml.

n Fi j=, ECL i fractional abundance of the ith radionuclide obtained by dividing the activity (curies) for each radionuclide, Ci, by the sum of all the isotopic activity, CT.

=

total number of radionuclides identified

=

Effluent Concentration Limit (ECL) of the ith radionuclide from 10 CFR 20 (20.1001-20.2402), Appendix B, Table 2, Column 2.

where:

Fj n

ECLI ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION F. APPLICABLE LIMITS (Continued)

APPENDIX A GASEOUS EFFLUENTS -APPLICABLE LIMITS A.

Table 1A lists the total curies released and the release rate. The percent of applicable limit compares the release concentration limits of 10 CFR 20 Appendix B, Table II, Column 1.

B.

Table 1 E lists the air doses as calculated using the historical X/Q. the air dose due to noble gases released in gaseous effluents from SONGS (per reactor) to areas at and beyond the site boundary shall be limited to the following values:

1. During any calendar quarter:

2. During any calendar year:

< 5 mrad for gamma radiation and

< 10 mrad for beta radiation.

< 10 mrad for gamma radiation and

< 20 mrad for beta radiation.

C.

The dose to a Member of the Public from iodines, tritium, and all radionuclides in particulate form with half-lives greater than eight days in gaseous effluents released from SONGS (per reactor) to areas at and beyond the site boundary shall be limited to the following values:

1. During any calendar quarter:

2. During any calendar year:

< 7.5 mrem to any organ.

< 15 mrem to any organ.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION F. APPLICABLE LIMITS (Continued)

APPENDIX A (Continued)

LIQUID EFFLUENTS-APPLICABLE LIMITS A.

Table 2A lists the total curies released, the diluted concentration, and percent of applicable limit.

The percent of applicable limit compares the diluted concentration of radioactive material released to the concentrations specified in 10 CFR 20 Appendix B, Table II, Column 2 for radionuclides other than dissolved or entrained gases. For dissolved or entrained noble gases, the concentration is limited to 2.OOE-04 pCi/ml.

B.

Table 2D lists the doses due to liquid releases. The dose commitment to a Member of the Public from radioactive materials in liquid effluent release from SONG (per reactor) to unrestricted areas shall be limited to the following values:

1. During any calendar quarter:

2. During any calendar year:

< 1.5 mrem to the total body and

< 5 mrem to any organ.

< 3 mrem to the total body and

< 10 mrem to any organ.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT-2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION G. ESTIMATION OF ERROR Estimations of the error in reported values of gaseous and liquid effluents releases have been made.

Sources of error for gaseous effluents batch releases are:

(1) tank volumes (2) sampling (3) counting (4) calibration Sources of error for gaseous effluents - continuous releases are:

(1) fan flow rate (2) sampling (3) counting (4) calibration (5) differential pressure drop Sources of error for liquid effluents - batch releases are:

(1) tank volumes (2) sampling (3) counting (4) calibration Sources of error for liquid effluents - continuous releases are:

(1) dilution flow rate (2) sampling (3) counting (4) calibration These sources of error are independent, and thus, the total error is calculated according to the following formula:

T Er2 2

2 2

Total Error

=

VG I + G 2 + T 3...

G i where:

or Error associated with each component.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION H. 10 CFR 50 APPENDIX I REQUIREMENTS Table 1 in SectionH presents the quarterly and annual maximum dose to an individual. Six different categories are presented:

(1) Liquid Effluents - Whole Body (2) Liquid Effluents - Organ (3) Airborne Effluents - Tritium, lodines and Particulates (4) Noble Gases - Gamma (5) Noble Gases - Beta (6) Direct Radiation The doses for categories 1 and 2 were calculated using the methodology of the ODCM; these data are also presented in Table 2D. Categories 3, 4, and 5 were calculated utilizing RETDAS (Radioactive Effluent Tracking and Dose Assessment Software), Regulatory Guide 1.109 methodology, and concurrent meteorology. Table 1 E of gaseous effluents previously presented, however, lists data similar to categories 3, 4 and 5 using methods described in the ODCM and the historical meteorology (X/Q). Category 6 presents direct dose data measured by TLD dosimeters.

Each portion of each category is footnoted to briefly describe each maximum individual dose presented.

For members of the public, per the ODCM, who may at times be within the site boundary1, the occupancy of the individual will be sufficiently low to compensate for any increase in the atmospheric diffusion factor above that for the site boundary. For members of the public who traverse the site boundary via highway 1-5, the residency time shall be considered negligible and hence the dose "0".

Table 2 in Section H presents the percent of Applicable Limits for each dose presented in Table 1.

1 ODCM Figures 1-2 & 2-2.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION TABLE 1 Dose * (millirems)

First Second Third Fourth SOURCE Quarter Quarter Quarter Quarter Year LIQUID EFFLUENTS

1)

2)

3)

4) 5)

Whole Body 1.61 E-03 1.09E-03 1.10E-03 9.52E-04 4.75E-03

6)

7)

8)

9) 10)

Organ 6.30E-03 5.29E-03 6.23E-03 1.05E-02 2.83E-02 AIRBORNE EFFLUENTS

11)

12)

13)

14) 15)

Tritium, lodines, and 1.25E-02 2.72E-03 5.48E-03 1.31 E-02 3.39E-02 Particulates NOBLE GASES **

16)

17)

18)

19) 20)

Gamma 3.05E-02 5.26E-05 7.19E-06 1.76E-05 3.06E-02

21)

22)

23)

24) 25)

Beta 6.81E-02 5.96E-03 8.15E-04 1.99E-03 7.68E-02

26)

27)

28)

29) 30)

DIRECT RADIATION 2.26E-01 1.20E-01 9.35E-02 4.16E-02 4.25E-01 The numbered footnotes below briefly explain how each maximum dose was calculated, including the organ and the predominant pathway(s).

- Noble gas doses due to airborne effluent are in units of mrad, reflecting the air dose.

1. This value was calculated using the methodology of the ODCM.

2.

This value was calculated using the methodology of the ODCM.

3.

This value was calculated using the methodology of the ODCM.

4.

This value was calculated using the methodology of the ODCM.

5.

This value was calculated using the methodology of the ODCM.

6.

This value was calculated using the methodology of the ODCM; the GI-LLI received the maximum dose primarily by the saltwater fish pathway.

7.

This value was calculated using the methodology of the ODCM; the GI-LLI received the maximum dose primarily by the saltwater fish pathway.

8.

This value was calculated using the methodology of the ODCM; the GI-LLI received the maximum dose primarily by the saltwater fish pathway.

9.

This value was calculated using the methodology of the ODCM; the GI-LLI received the maximum dose primarily by the saltwater fish pathway.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION

10. This value was calculated using the methodology of the ODCM; the GI-LLI received the maximum dose primarily by the saltwater fish pathway.

11. The maximum organ dose was to a child's thyroid and was located in the NNW sector. This was calculated using the assumptions of USNRC Regulatory Guide 1.109.

12. The maximum organ dose was to a child's thyroid and was located in the NNW sector. This was calculated using the assumptions of USNRC Regulatory Guide 1.109.

13. The maximum organ dose was to a child's thyroid and was located in the NNW sector. This was calculated using the assumptions of USNRC Regulatory Guide 1.109.

14. The maximum organ dose was to a child's thyroid and was located in the NNW sector. This was calculated using the assumptions of USNRC Regulatory Guide 1.109.

15. The maximum organ dose was to a child's thyroid and was located in the NNW sector. This was calculated using the assumptions of USNRC Regulatory Guide 1.109.

16. The maximum air dose for gamma radiation was located in the NNE sector, at the exclusion area boundary, and calculated using the assumptions of the USNRC Regulatory Guide 1.109.

17. The maximum air dose for gamma radiation was located in the NNE sector, at the exclusion area boundary, and calculated using the assumptions of the USNRC Regulatory Guide 1.109.

18. The maximum air dose for gamma radiation was located in the NNE sector, at the exclusion area boundary, and calculated using the assumptions of the USNRC Regulatory Guide 1.109.

19. The maximum air dose for gamma radiation was located in the NNE sector, at the exclusion area boundary, and calculated using the assumptions of the USNRC Regulatory Guide 1.109.

20. The maximum air dose for gamma radiation was located in the NNE sector, at the exclusion area boundary, and calculated using the assumptions of the USNRC Regulatory Guide 1.109.

21. The maximum air dose for beta radiation was located in the NNE sector, at the exclusion area boundary, and calculated using the assumptions of the USNRC Regulatory Guide 1.109.

22. The maximum air dose for beta radiation was located in the NNE sector, at the exclusion area boundary, and calculated using the assumptions of the USNRC Regulatory Guide 1.109.

23. The maximum air dose for beta radiation was located in the NNE sector, at the exclusion area boundary, and calculated using the assumptions of the USNRC Regulatory Guide 1.109.

24. The maximum air dose for beta radiation was located in the NNE sector, at the exclusion area boundary, and calculated using the assumptions of the USNRC Regulatory Guide 1.109.

25. The maximum air dose for beta radiation was located in the NNE sector, at the exclusion area boundary, and calculated using the assumptions of the USNRC Regulatory Guide 1.109.

26. Measurements were made using TLD dosimeters; values are presented as site wide dose and are prorated to 300 hours0.00347 days 0.0833 hours 4.960317e-4 weeks 1.1415e-4 months per year; highest dose was measured at the Site Boundary in the W sector.

27. Measurements were made using TLD dosimeters; values are presented as site wide dose and are prorated to 300 hours0.00347 days 0.0833 hours 4.960317e-4 weeks 1.1415e-4 months per year; highest dose was measured at the Site Boundary in the WNW sector.

28. Measurements were made using TLD dosimeters; values are presented as site wide dose and are prorated to 300 hours0.00347 days 0.0833 hours 4.960317e-4 weeks 1.1415e-4 months per year; highest dose was measured at the Site Boundary in the WNW sector.

29. Measurements were made using TLD dosimeters; values are presented as site wide dose and are prorated to 300 hours0.00347 days 0.0833 hours 4.960317e-4 weeks 1.1415e-4 months per year; highest dose was measured at the Site Boundary in the WNW sector.

30. Measurements were made using TLD dosimeters; values are presented as site wide dose and are prorated to 300 hours0.00347 days 0.0833 hours 4.960317e-4 weeks 1.1415e-4 months per year; highest dose was measured at the Site Boundary in the WNW sector.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION TABLE 2 Percent Applicable Limit First Second Third Fourth SOURCE Quarter Quarter Quarter Quarter Year LIQUID EFFLUENTS Whole Body 5.37E-02 3.65E-02 3.65E-02 3.17E-02 7.92E-02 Organ 6.30E-02 5.29E-02 6.23E-02 1.05E-01 1.42E-01 AIRBORNE EFFLUENTS Tritium, lodines, and 8.34E-02 1.82E-02 3.65E-02 8.76E-02 1.13E-01 Particulates NOBLE GASES Gamma 3.05E-01 5.26E-04 7.19E-05 1.76E-04 1.53E-01 Beta 3.40E-01 2.98E-02 4.07E-03 9.95E-03 1.92E-01 NOTE:

Direct Radiation is not specifically addressed in the Applicable Limits.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT -2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION I. CHANGES TO THE OFFSITE DOSE CALCULATION MANUAL Revision 6 to the SONGS Offsite Dose Calculation Manual (ODCM) was issued on August 9, 2012.

This revision incorporated the following: 1) Land Use Census changes, 2) update of North Industrial Area on Exclusion Area Boundary drawing, 3) revised liquid effluent radiation monitor calibration constants, 4) changes to Radiological Environmental Monitoring Program, and 5) addition of supplemental information to Appendix B.

None of the changes impacted the accuracy or reliability of effluent dose or setpoint calculations.

The level of radioactive effluent control required by 10CFR20, 40CFR190, 10CFR50.36a and Appendix I to 10CFR50 will be maintained.

Throughout the document, A Addition D Deletion F Editorial/Format change R Revision change bars indicated the following types of changes:

Page #

changes due to Revision 6 Reason Title pages Revised from previous revision to Rev 6 R

1-23 Revised Liquid Effluent Radiation Monitor Calibration Constants R

2-9 Revised Figure 2-2, SONGS Site Boundary for Gaseous R

Effluents, deleting Unit 1 and the Reservoir 2-29 Revised U2&3 Controlling Location Factors, per Land Use R

Census 5-23 Revised Figure 5-1, adding missing sample locations, Non-R Migratory Marine Animals A and Ocean Bottom Sediment F.

5-24 Revised Figure 5-2, adding missing sample locations, Non-R Migratory Marine Animals A and Ocean Bottom Sediment F.

5-25 Revised Figure 5-3, adding missing sample locations, Non-R Migratory Marine Animals A and Ocean Bottom Sediment F.

5-26 Revised Figure 5-4, adding missing sample locations, Non-R Migratory Marine Animals A and Ocean Bottom Sediment F.

5-27 Replaced Figure 5-5, Improving clarity F

Appendix A Cover Revised to Revision 6 R

Ai Revised References R

Al-11 Revised per Land Use Census (LUC)

R A1-13 Revised per LUC R

Al-15 Revised per LUC R

Al-16 Revised per LUC R

Al-18 Revised per LUC R

Al-19 Revised per LUC R

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION I. CHANGES TO THE OFFSITE DOSE CALCULATION MANUAL (Continued)

Page #

changes due to Revision 6 Reason A1-21 Revised per LUC R

A1-22 Revised per LUC R

A1-26 Revised per LUC R

A1-27 Revised per LUC R

A1-28 Revised per LUC R

A1-29 Revised per LUC R

A1-31 Revised per LUC R

A1-32 Revised per LUC R

A1-33 Revised per LUC R

A1-34 Revised per LUC R

A1-37 Revised per LUC R

A1-39 Revised per LUC R

A1-41 Revised per LUC R

Appendix B Cover Revised to Revision 6 R

Bi Revised Table of Contents R

B4-1 Added Memorandum for File designating ODCM approval A

authority dated April 27, 2010 B5-1 thru B5-18 Added Memorandum for File "Units 2/3 BuildingNentilation A

Envelopes/Turbine/MSIV Areas", Revision 1, January 13, 2012 B6-1 thru B6-8 Added Memorandum for File "SONGS Carbon-14 Production, A

Release and Offsite Dose Calculation Methodology", Revision 0, June 18, 2012 The Land Use Census (LUC) for 2011 did not identify a new location with a higher calculated or committed dose than those calculated for the locations evaluated in the previous revision to the ODCM. Therefore, no new location is reported per ODCM 5.2.1.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION J. CHANGES TO RADIOACTIVE WASTE TREATMENT SYSTEMS NONE.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION K. MISCELLANEOUS ABNORMAL RELEASES Leaking Unit 3 Steam Generator Blowdown Valves There was a small amount of leakage from the Unit 3 steam generators past the blowdown isolation valves to the outfall at an estimated rate of 0.4 gpm. Compensatory sampling was performed whenever the upstream valves to the leaking valves were open. The curies released were accounted for in weekly release permits. This unplanned, unmonitored release resulted in an estimated release of 2.26E-03 curies of tritium, 8.29E-05 curies of dissolved and entrained noble gas and 1.37E-05 curies of particulate and iodines, with a whole body dose of 1.27E-07 mrem and an organ dose of 2.92E-06 mrem thyroid to a member of the public.

The curies released and associated dose are included in Tables 2A, 2B, 2D, and Table 1.

This event is documented in NN 201614180 and NN 201614181.

UNPLANNED MONITORED RELEASES Unit 3 Steam Generator Tube Leak On 1/31/2012 at 1505 the condenser air ejector in-line radiation monitor exceeded the setpoint for a 30 gpd primary-to-secondary leak and alarmed, confirming a steam generator tube leak. The steam generator blowdown monitor on 3E088 also alarmed. Due to the observed rate of increase and the readings exceeding the High setpoint on the condenser air ejector monitors, Operations took prompt action per the site procedures to perform a controlled shutdown of Unit 3 and within 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months of the increased radiation monitor readings had isolated the affected steam generator.

A sample was taken from the condenser air ejector during the release for noble gases and the continuous samples for particulate matter and radioiodines were also retrieved and analyzed. No radioactivity was detected on the particulate matter filters. During the event, an estimated 4.23E-02 curies of noble gas and 8.86E-06 curies of iodine were released through the condenser evacuation system, a monitored ODCM-credited release point. This resulted in a calculated whole body dose of 4.73E-05 mrem to a member of the public. Argon-41 made up 70% of the total amount of radioactivity released; other noble gases (Kr and Xe) 30%; and radioiodines were 0.02%. The whole body dose contribution from argon-41 was 87% of the dose. The NRC regulatory limit for airborne releases is 500 mrem/year whole body dose which is equivalent to 1.4 mrem/day. This dose from the Unit 3 steam generator tube leak through the condenser air ejector to atmosphere resulted in a calculated dose that would have been 3.38E-03 % of the "daily" federal limit.

The liquid contents of the affected steam generator 3E088 that leaked into the condensers were discharged over the following week by either overboarding the condensers or through the turbine plant sump, an ODCM-monitored liquid release point. In addition, draining of the steam generators containing water from the tube leakage occurred between 2/5/2012 and 2/11/2012. The amount of radioactivity released through liquid effluents was estimated as 2.11 E-01 curies, which was almost exclusively tritium. The dose impact was calculated to be 1.35E-05 mrem whole body. The federal limit is 3 millirem whole body over a year. The calculated dose from the radioactive liquid releases resulting from the 3E088 primary-to-secondary leak were 9.OOE-04% of the quarterly federal limit.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION K. MISCELLANEOUS (Continued)

The curies released were accounted for in release permits. The curies release and associated dose are included in Tables 1A, 1C, 1E, 2A, 2B, 2D, and Table 1. The calculated quantity of radioactivity (curies) and the resultant projected dose (mrem) values discussed in this section are refinements that conservatively include system clean-up discharges. These refinements represent at most approximately 10%-15% change in values previously provided. There was no significant dose consequence to a member of the public.

This event is documented in NN 201836127.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION K. MISCELLANEOUS (Continued)

EFFLUENT MONITORING INSTRUMENTS OUT OF SERVICE GREATER THAN 30 DAYS January 1, 2012-December 31, 2012 An Apparent Cause Evaluation was approved in November 2012, to address untimely return to service of effluent monitoring instruments. Corrective actions resulting from this evaluation have been implemented.

For the effluent monitoring instrumentation where the inoperability period is indicated as ending 12/31/12, the date represents the end of the reporting period. Not all of the instruments were returned to service at that time.

SONGS Unit 2 Inoperability Instrument Inoperability Period Cause Explanation 2FT-7870H 4/17/00 - 12/31/12 Inoperable Design deficiency caused process flow Condenser process flow instrument to be inoperable when the Evacuation measuring vacuum pump is running. Flow monitor System High device due to works properly during normal operations.

Range inadequate Isokinetic conditions are maintained during Process instrument vacuum pump operation by automatic Flow Rate range insertion of substitute flow value whenever Monitor (design the vacuum pump is running. This will be deficiency) resolved by replacing 2FT-7870H with a wide range flow transmitter.

2RT-7865 11/6/11 - 3/18/12 Heat Trace Two temperature indicators are to be Plant Vent low installed to allow personnel to verify that Stack Iodine temperature each future low temperature alarm is not and alarms associated with condensation of the sample Particulate during winter gas.

Samplers evenings due to design deficiency.

7/28/12 - 12/31/12 Heat Trace Procedure incorrectly characterized high spurious over temperature as "SAT". Procedure was temperature corrected 3/5/13.

alarms due to high resistance in temperature sensor (RTD) circuit.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION K. MISCELLANEOUS (Continued)

EFFLUENT MONITORING INSTRUMENTS OUT OF SERVICE GREATER THAN 30 DAYS (Continued)

January 1, 2012-December 31, 2012 SONGS Unit 2 (Continued)

Inoperability Instrument Inoperability Period Cause Explanation 2RT-6753 9/18/11 - 3/3/12 Indication The obsolete Victoreen monitors will be Steam failed low due replaced with new digital equipment Generator to detector (forecast May 2013).

E089 degradation.

Blowdown Effluent Line Gross 1/6/12 - 12/31/12 Jumpers The radiation monitors are declared Radioactivity installed for inoperable by Operations when the Monitor outage monitor's alarm and automatic functions are bypassed to support outage activities.

Channel Functional Test cannot be performed with jumpers installed, surveillance deferred until mode ascension.

2RT-6759 1/6/12 - 12/31/12 Jumpers The radiation monitors are declared Steam installed for inoperable by Operations when the Generator outage monitor's alarm and automatic functions E088 are bypassed to support outage activities.

Blowdown Channel Functional Test cannot be Effluent performed with jumpers installed, Gross surveillance deferred until mode Radioactivity ascension.

Monitor 2RT-7817 3/23/12-5/22/12 Activity level The 2RE7817 detector canister was Steam high due to replaced.

Generator contamination Blowdown of the sample Processing lines and System detector Gross canister.

Radioactivity Monitor ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION K. MISCELLANEOUS (Continued)

EFFLUENT MONITORING INSTRUMENTS OUT OF SERVICE GREATER THAN 30 DAYS (Continued)

January 1,2012 - December 31, 2012 SONGS Unit 2 (Continued)

Inoperability Instrument Inoperability Period Cause Explanation 2APC-3772 1/10/12-3/19/12 Leakage in The flow indicator was counting with no Blowdown sensing line.

flow during Operations surveillance due Processing to leakage in sensing line and valve.

System Replaced the tubing lines and root valve.

Discharge Flushed the sensing lines and retest Composite performed satisfactory on 3/17/12.

Sampler 2APC-4077 5/15/12 - 7/26/12 Compositor During functional testing when the Steam leaking manual flushing valve was opened water Generator started leaking out of the compositor 2E088 pneumatic valve. The compositor was Blowdown overhauled.

Composite Sampler 11/13/12 - 12/31/12 Cracked Replacement of cracked bushing is bushing at scheduled for April 2013.

pipe for 2AP-4077 2APC-4076 9/8/11 - 11/16/12 Compositor Changed input scaling factor to Steam timer accommodate longer sampling periods Generator counting and replaced flow integrator.

2E089 slow.

Blowdown Composite Flow Sampler integrator would not advance.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION K. MISCELLANEOUS (Continued)

EFFLUENT MONITORING INSTRUMENTS OUT OF SERVICE GREATER THAN 30 DAYS (Continued)

January 1,.2012 - December 31, 2012 SONGS Unit 3 Inoperability Instrument Inoperability Period Cause Explanation 3FT-7870H 04/17/00 - 12/31/12 Inoperable Design deficiency caused process flow Condenser process flow instrument to be inoperable when the Evacuation measuring vacuum pump is running. Flow monitor System device due to works properly during normal High Range inadequate operations. Isokinetic conditions are Process instrument maintained during vacuum pump Flow Rate range (design operation by automatic insertion of Monitor deficiency) substitute flow value whenever the vacuum pump is running. This will be resolved by replacing 3FT-7870H with a wide range flow transmitter.

3RT-7870 11/3/11 - 1/11/12 Heat trace Heat trace circuit was found failed high Condenser controller failed during routine panel checks. A Evacuation high.

degraded connector was replaced and System the heat trace restored.

Iodine and 2/14/12 - 12/31/12 Out of service Monitor not required during this period Particulate for outage since the plant was not in Modes 1-4.

Samplers Failed skid leak Replaced air dryer 3ME678.

test due air in-leakage at broken drain line of dryer 3ME678 During channel Valve S3131MU219 in the low flow functional test, position did not meet the test Mid/High acceptance criteria. Repair of this valve Range Sample is scheduled to complete by 12/15/13 Flow was lower than the acceptance criteria.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION K. MISCELLANEOUS (Continued)

EFFLUENT MONITORING INSTRUMENTS OUT OF SERVICE GREATER THAN 30 DAYS (Continued)

January 1, 2012 - December 31, 2012 SONGS Unit 3 (Continued)

Inoperability Instrument Inoperability Period Cause Explanation 3RT-6753 1/31/12 - 12/31/12 Jumpers The radiation monitors are declared Steam installed for inoperable by Operations when the Generator outage.

monitor's alarm and automatic E089 functions are bypassed to support Blowdown outage activities.

Effluent Channel Functional Test cannot be Gross performed with jumpers installed, Radioactivity surveillance deferred until mode Monitor ascension.

3RT-6759 1/31/12 - 12/31/12 Jumpers The radiation monitors are declared Steam installed for inoperable by Operations when the Generator outage.

monitor's alarm and automatic E088 functions are bypassed to support Blowdown outage activities.

Effluent Channel Functional Test cannot be Gross performed with jumpers installed, Radioactivity surveillance deferred until mode Monitor ascension.

Radiation count Radiation count rate higher than alarm rate is two setpoint due to radioactive decades higher contamination from steam generator than normal.

E088 tube leak. Sample system was flushed and radiation count returned to normal count rate.

3RT-7817 3/24/12 - 10/19/12 Spurious high Decontaminated the detector canister.

Steam radiation Generator alarms due to Blowdown radioactive Processing contamination.

System Gross Found LDU The LPU application software or Radioactivity green operate parameter set became corrupted.

Monitor LED Reloaded the approved software and extinguished.

parameter set.

3APC-3772 4/7/12-10/19/12 3FQI-3772 is Flow transmiter sensing lines were Blowdown counting, with blowdown to clear them of any Processing no flow obstructions. New valves were System present, due to installed.

Discharge sensing line Composite and valve Sampler leakage.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION K. MISCELLANEOUS (Continued)

EFFLUENT MONITORING INSTRUMENTS OUT OF SERVICE GREATER THAN 30 DAYS (Continued)

January 1, 2012-December 31, 2012 SONGS Unit 3 (Continued)

Inoperability Instrument Inoperability Period Cause Explanation 3APC-4077 8/19/11 - 11/16/12 Composite Changed input scaling factor to Steam Sampler is accommodate longer sampling periods.

Generator collecting 3E088 excessive Blowdown volume.

Composite Sampler 3APC-4076 8/20/11 - 11/16/12 Composite Changed input scaling factor to Steam Sampler is accommodate longer sampling periods.

Generator collecting 3E089 excessive Blowdown volume.

Composite Sampler 3APC-5887 2/7/12 - 5/8/12 Composite Rebuilt the compositor.

Turbine sampler is Plant Sump collecting Composite excessive Sampler volume.

3FT-4055 2/1/12 - 4/24/12 3FIC-4055 flow Flow returned to zero later with no Steam controller actions from Maintenance.

Generator indicates 125 3E088 gpm with Blowdown 3E088 isolated.

Effluent Process Flow Monitor 3FT-4056 2/3/12 - 4/18/12 3FIC-4056 flow Filled and vented the flow transmitter.

Steam controller Generator 7/11/12 - 11/2/12 indicates flow, 3E089 with no actual Blowdown flow present.

Effluent Process Flow Monitor ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION K. MISCELLANEOUS (Continued)

EFFLUENT MONITORING INSTRUMENTS OUT OF SERVICE GREATER THAN 30 DAYS (Continued)

January 1. 2012 - December 31. 2012 SONGS Unit 2/3 Common Inoperability Instrument Inoperability Period Cause Explanation 2/3RT-7808 5/9/11 - 1/12/12 Replacement Design did not account for sound Plant Vent pumps produced waves. A pressure switch was Stack Noble sound waves abandoned to return the monitor to Gas Activity that caused service.

Monitor premature stopping of sample pumps.

2/3RE-7813 12/25/11-2/3/12 Receiving Unit 2 Replaced the local display unit.

Liquid common and Radwaste instrument Effluent failure and DAS Gross trouble alarms in Radioactivity conjunction with Monitor 2/3RE7813 instrument failure alarms.

5/31/12-6/30/12 Unexpected Performing monthly flushes.

high radiation alarm due to contamination.

2/3RT-2101 11/9/11 - 1/10/12 Pump P1060 An inoperable sump pump prevented NIA Yard does not start on performance of the 18 month Drains Sump High Level.

channel calibration. The monitor Effluent Line was declared inoperable when the Gross calibration became overdue.

Radioactivity Calibration performed successfully Monitor 1/10/12.

Stuck sewage Cleaned the flapper valve.

treatment flapper valve.

6/20/12 - 7/20/12 Plant computer Panel 2/3L714 was reenergized and indication read indications were verified satisfactory.

"bad data" during performance of Operations surveillance S023-3-3.21 due to 2/3L714 deenergized.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION K. MISCELLANEOUS (Continued)

EFFLUENT MONITORING CHANNELS OUT OF SERVICE GREATER THAN 30 DAYS, WITH INSTRUMENT FUNCTIONS SATISFIED OR NOT REQUIRED FOR PLANT CONDITIONS January 1,2012-December31, 2012 SONGS Unit 2 Inoperability Instrument Inoperability Period Cause Explanation 2RT-7870 4/3/12 - 8/2/12 2RT-7870 Monitor not required during this period Condenser taken OOS for since the plant was not in Modes 1-4.

Evacuation overlapping Out of tolerance findings delayed System routine completion of two surveillances due to Noble Gas surveillance over conservative criteria. Procedure Activity and was revised and surveillance was Monitor preventive completed satisfactory on 7/19/12.

maintenance schedules.

8/22/12 - 10/19/12 Sample flow Monitor not required during this period control failed.

since the plant was not in Modes 1-4.

Repeated failures of sample flow control due to degraded capacitors in low range sample flow sensor.

Parts are obsolete and could not get capacitors in a timely manner.

11/16/12 - 12/31/12 Wide Range Monitor not required during this period Gas Monitor since the plant was not in Modes 1-4.

out of service for outage activities.

2RT-7818 12/5/12 - 12/31/12 Out of service Monitor not required during this period Condenser for outage since the plant was not in Modes 1-4.

Evacuation System Noble Gas Activity Monitor ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION K. MISCELLANEOUS (Continued)

EFFLUENT MONITORING CHANNELS OUT OF SERVICE GREATER THAN 30 DAYS, WITH INSTRUMENT FUNCTIONS SATISFIED OR NOT REQUIRED FOR PLANT CONDITIONS (Continued)

January 1, 2012 - December 31, 2012 SONGS Unit 3 Inoperability Instrument Inoperability Period Cause Explanation 3RT-7818 3/20/12 - 12/31/12 Low sample Monitor not required during this period Condenser flow due to a since the plant was not in Modes 1-4.

Evacuation faulty Repaired faulty crimp.

System connector Obsolete spare parts. Parts for corroded Noble Gas crimp on the wiring harness taken from abandoned in Activity flow control place equipment Monitor valve wiring Not required while Defueled.

harness.

Monitor remained inoperable due to overdue surveillance ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT-2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION K. MISCELLANEOUS (Continued)

ONSITE GROUND WATER SAMPLES This section provides results of on-site samples of ground water that were obtained as part of SCE's implementation of the voluntary industry Ground Water Protection Initiative. The sample locations and the frequency of sampling may change over time. The ground water beneath SONGS is not a source of drinking water.

Ground water sample data indicated the present of low but detectable levels of tritium in shallow ground water in the area formerly occupied by Unit 1. The concentrations of tritium are well below all regulatory limits. An investigation was performed to characterize these low concentrations of tritium and to identify the potential source. The investigation determined that the low concentrations are present in the shallow ground water situated generally between the former Unit 1 containment and fuel handling building, and extend towards the seawall. An extraction plan has been implemented to initiate hydraulic containment of the plume and to facilitate monitoring and documentation of any changes in tritium concentration. Extraction of the shallow ground water beneath the former Unit 1 area is being performed and the resultant water is managed and discharged through an ODCM-credited release point. Any tritium in the wastewater is included in Tables 2A, 2B and 2D and the dose included in the 10 CFR 50 Appendix I Table 1 of the ARERR.

SONGS Groundwater Wells Refer to7

_21_lttac e

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION K. MISCELLANEOUS (Continued)

ONSITE GROUND WATER SAMPLES January 1, 2012 - December 31, 2012 Sample Date Location Tritium Activity, pCi/mi Gamma Activity, pCi/ml 1/7/12 NIA-5 9.75E-06

<LLD NIA-EXT-12

<LLD

<LLD NIA-EXT-13 1.15E-05

<LLD 3/3/12 NIA-EXT-13 1.40E-05

<LLD GW-NIA-1

<LLD

<LLD GW-NIA-2

<LLD

<LLD 3/10/12 NIA-EXT-13 1.23E-05

<LLD NIA-EXT-12 2.63E-06 N/A NIA-EXT-14

<LLD N/A NIA-4

<LLD

<LLD NIA-5 8.50E-06

<LLD NIA-6

<LLD

<LLD 3/12/12 GW-OCA-1

<LLD

<LLD 3/15/12 GW-OCA-2

<LLD

<LLD 3/23/12 GW-OCA-3

<LLD

<LLD 3/29/12 GW-PA-3

<LLD

<LLD GW-PA-4

<LLD

<LLD 3/30/12 GW-PA-1

<LLD

<LLD GW-PA-2

<LLD

<LLD 6/14/12 GW-NIA-1

<LLD

<LLD 6/15/12 NIA-5 6.14E-06

<LLD GW-NIA-2 3.60E-06

<LLD GW-OCA GW-PA GW-NIA NIA and NIA-EXT a priori LLD pCi/ml

= Wells installed in the Owner Controlled Area to implement the Ground Water Protection Initiative.

= Wells installed in the Protected Area to implement the Ground Water Protection Initiative.

= Wells installed in the North Industrial Area to implement the Ground Water Protection Initiative.

= Temporary investigation wells installed in the North Industrial Area

= H-3: 3.OE-06 pCi/ml

= indicated microcuries per milliliter ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION ONSITE GROUND WATER SAMPLES (Continued)

Sample Date Location Tritium Activity, pCi/ml Gamma Activity, pCi/ml 6/21/12 GW-OCA-3

<LLD

<LLD 6/22/12 NIA-EXT-12

<LLD

<LLD 6/23/12 GW-PA-3

<LLD

<LLD 6/24/12 GW-PA-1

<LLD

<LLD GW-PA-2

<LLD

<LLD 6/26/12 GW-NIA-1

<LLD

<LLD 6/27/12 GW-PA-4

<LLD

<LLD GW-OCA-1

<LLD

<LLD 6/28/12 GW-OCA-2

<LLD

<LLD 6/29/12 NIA-EXT-12

<LLD

<LLD NIA-EXT-13 3.63E-06

<LLD NIA-EXT-14

<LLD

<LLD NIA-EXT-15

<LLD

<LLD 7/2/12 NIA-EXT-15

<LLD

<LLD 7/3/12 NIA-EXT-14

<LLD

<LLD NIA-EXT-13 2.74E-06

<LLD NIA-EXT-12

<LLD

<LLD NIA-11

<LLD

<LLD NIA-10

<LLD

<LLD 7/5/12 GW-NIA-2 2.76E-06

<LID NIA-4

<LLD

<LLD NIA-5 5.42E-06

<LLD NIA-6

<LLD

<LLD NIA-7

<LLD

<LID 7/6/12 GW-NIA-1

<LLD

<LLD NIA-3

<LLD

<LLD NIA-8

<LLD

<LLD NIA-9

<LLD

<LLD GW-OCA GW-PA GW-NIA NIA and NIA-EXT a priori LLD pCi/ml

= Wells installed in the Owner Controlled Area to implement the Ground Water Protection Initiative.

= Wells installed in the Protected Area to implement the Ground Water Protection Initiative.

= Wells installed in the North Industrial Area to implement the Ground Water Protection Initiative.

= Temporary investigation wells installed in the North Industrial Area

= H-3: 3.OE-06 pCi/ml

= indicated microcuries per milliliter ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT-2012 SAN ONOFRE NUCLEAR GENERATING STATION ONSITE GROUND WATER SAMPLES (Continued)

Sample Date Location Tritium Activity, pCi/ml Gamma Activity, pCi/ml 7/9/12 NIA-EXT-12

<LLD

<LLD NIA-EXT-13 2.90E-06

<LLD NIA-EXT-14

<LLD

<LLD NIA-EXT-15

<LLD

<LLD 7/11/12 NIA-3

<LLD

<LLD NIA-4

<LLD

<LLD NIA-6

<LLD

<LLD NIA-7

<LLD

<LLD 7/12/12 NIA-8 2.43E-06

<LLD NIA-9

<LLD

<LLD NIA-10

<LLD

<LLD NIA-II

<LLD

<LLD 7/13/12 GW-NIA-1

<LLD

<LLD GW-NIA-2 2.89E-06

<LLD NIA-5 5.17E-06

<LLD 7/16/12 NIA-EXT-12

<LLD

<LLD NIA-EXT-13 2.62E-06

<LLD NIA-EXT-15

<LLD

<LLD 7/17/12 NIA-EXT-14

<LLD

<LLD NIA-7

<LLD

<LLD 7/18/12 NIA-3

<LLD

<LLD NIA-4

<LLD

<LLD NIA-5 5.74E-06

<LLD NIA-6

<LLD

<LLD 7/19/12 GW-NIA-1

<LLD

<LLD GW-NIA-2 3.11E-06

<LLD NIA-10

<LLD

<LLD NIA-11

<LLD

<LLD 7/20/12 NIA-8 2.28E-06

<LLD NIA-9

<LLD

<LLD GW-OCA

= Wells installed in the Owner Controlled Area to implement the Ground Water Protection Initiative.

GW-PA

= Wells installed in the Protected Area to implement the Ground Water Protection Initiative.

GW-NIA

= Wells installed in the North Industrial Area to implement the Ground Water Protection Initiative.

NIA and NIA-EXT

= Temporary investigation wells installed in the North Industrial Area a priori LLD

= H-3: 3.OE-06 pCi/ml pCi/ml

= indicated microcuries per milliliter ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION ONSITE GROUND WATER SAMPLES (Continued)

Sample Date Location Tritium Activity, pCi/ml Gamma Activity, pCi/ml 7/23/12 NIA-EXT-12

<LLD

<LLD 7/24/12 NIA-7

<LLD

<LLD NIA-EXT-13 2.74E-06

<LLD NIA-EXT-14

<LLD

<LLD NIA-EXT-15

<LLD

<LLD 7/25/12 GW-NIA-2 2.51E-06

<LLD NIA-4

<LLD

<LLD NIA-5 5.18E-06

<LLD NIA-6

<LLD

<LLD NIA-10

<LLD

<LLD NIA-11

<LLD

<LLD 7/26/12 GW-NIA-1

<LLD

<LLD NIA-3

<LLD

<LLD NIA-8 2.63E-06

<LLD NIA-9

<LLD

<LLD 7/30/12 NIA-7

<LLD

<LLD NIA-EXT-12

<LLD

<LLD NIA-EXT-13 2.26E-06

<LLD NIA-EXT-14

<LLD

<LLD NIA-EXT-15

<LLD

<LLD 8/1/12 NIA-1I

<LLD

<LLD NIA-10

<LLD

<LLD GW-NIA-2 2.27E-06

<LLD NIA-5 5.18E-06

<LLD NIA-3

<LLD

<LLD GW-NIA-1

<LLD

<LLD 8/2/12 NIA-6

<LLD

<LLD NIA-4

<LLD

<LLD NIA-9

<LLD

<LLD NIA-8 2.48E-06

<LLD GW-OCA GW-PA GW-NIA NIA and NIA-EXT a priori LLD pCi/mi

= Wells installed in the Owner Controlled Area to implement the Ground Water Protection Initiative.

= Wells installed in the Protected Area to implement the Ground Water Protection Initiative.

= Wells installed in the North Industrial Area to implement the Ground Water Protection Initiative.

= Temporary investigation wells installed in the North Industrial Area

= H-3:3.0E-06 pCi/ml

= indicated microcuries per milliliter ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT-2012 SAN ONOFRE NUCLEAR GENERATING STATION ONSITE GROUND WATER SAMPLES (Continued)

Sample Date Location Tritium Activity, pCi/ml Gamma Activity, pCi/ml 8/7/12 NIA-7

<LLD

<LLD NIA-EXT-12

<LLD

<LLD NIA-EXT-13 2.27E-06

<LLD NIA-EXT-14

<LLD

<LLD NIA-EXT-15

<LLD

<LLD 8/8/12 NIA-4

<LLD

<LLD NIA-5 5.28E-06

<LLD NIA-6

<LLD

<LLD NIA-10

<LLD

<LLD NIA-11

<LLD

<LLD 8/9/12 GW-NIA-1

<LLD

<LLD GW-NIA-2 2.42E-06

<LLD NIA-3

<LLD

<LLD 8/14/12 GW-NIA-2 2.75E-06

<LLD NIA-4

<LLD

<LLD NIA-5 5.43E-06

<LLD NIA-6

<LLD

<LLD NIA-7

<LLD

<LLD NIA-10

<LLD

<LLD NIA-11

<LLD

<LLD NIA-EXT-12

<LLD

<LLD NIA-EXT-13 2.19E-06

<LLD NIA-EXT-14

<LLD

<LLD NIA-EXT-15

<LLD

<LLD 8/15/12 GW-NIA-1

<LLD

<LLD NIA-3

<LLD

<LLD NIA-8 2.17E-06

<LLD NIA-9

<LLD

<LLD 8/20/12 NIA-EXT-12

<LLD

<LLD NIA-EXT-13 2.55E-06

<LLD GW-OCA GW-PA GW-NIA NIA and NIA-EXT a priori LLD pCi/mI

= Wells installed in the Owner Controlled Area to implement the Ground Water Protection Initiative.

= Wells installed in the Protected Area to implement the Ground Water Protection Initiative.

= Wells installed in the North Industrial Area to implement the Ground Water Protection Initiative.

= Temporary investigation wells installed in the North Industrial Area

= H-3:3.OE-06 pCi/ml

= indicated microcuries per milliliter ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT-2012 SAN ONOFRE NUCLEAR GENERATING STATION ONSITE GROUND WATER SAMPLES (Continued)

Sample Date Location Tritium Activity, pCi/ml Gamma Activity, pCi/ml 8/21/12 NIA-4

<LLD

<LLD NIA-6

<LLD

<LLD NIA-7

<LLD

<LLD NIA-EXT-14

<LLD

<LLD NIA-EXT-15

<LLD

<LLD 8/23/12 GW-NIA-2 2.81E-06

<LLD NIA-5 5.34E-06

<LLD NIA-10

<LLD

<LLD NIA-11

<LLD

<LLD 8/24/12 GW-NIA-1

<LLD

<LLD NIA-3

<LLD

<LLD NIA-8 2.39E-06

<LLD NIA-9

<LLD

<LLD 8/27/12 GW-NIA-2 2.89E-06

<LLD 8/29/12 GW-PA-4

<LLD

<LLD 8/30/12 GW-PA-1

<LLD

<LLD GW-PA-2

<LLD

<LLD GW-PA-3

<LLD

<LLD 8/31/12 GW-OCA-2

<LLD

<LLD 9/5/12 GW-OCA-3

<LLD

<LLD 9/6/12 NIA-EXT-13 2.33E-06

<LLD NIA-EXT-14

<LLD

<LLD NIA-EXT-15

<LLD

<LLD 9/7/12 GW-NIA-2 3.23E-06

<LLD NIA-5 4.52E-06

<LLD NIA-EXT-12

<LLD

<LLD 9/13/12 GW-OCA-1

<LLD

<LLD GW-OCA GW-PA GW-NIA NIA and NIA-EXT a priori LLD pCi/mi

= Wells installed in the Owner Controlled Area to implement the Ground Water Protection Initiative.

= Wells installed in the Protected Area to implement the Ground Water Protection Initiative.

= Wells installed in the North Industrial Area to implement the Ground Water Protection Initiative.

= Temporary investigation wells installed in the North Industrial Area

= H-3: 3.OE-06 pCi/ml

= indicated microcuries per milliliter ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION ONSITE GROUND WATER SAMPLES (Continued)

Sample Date Location Tritium Activity, pCi/ml Gamma Activity, pCi/ml 9/17/12 NIA-7

<LLD

<LLD NIA-EXT-13 2.30E-06

<LLD NIA-EXT-14

<LLD

<LLD NIA-EXT-15

<LLD

<LLD 9/18/12 GW-NIA-2 2.64E-06

<LLD NIA-10

<LLD

<LLD NIA-11

<LLD

<LLD NIA-EXT-12

<LLD

<LLD 9/19/12 GW-NIA-1

<LLD

<LLD NIA-4

<LLD

<LLD NIA-5 3.63E-06

<LLD NIA-6

<LLD

<LLD NIA-9

<LLD

<LLD 9/20/12 NIA-3

<LLD

<LLD 9/21/12 NIA-8

<LLD

<LLD 9/25/12 NIA-7

<LLD

<LLD NIA-10

<LLD

<LLD NIA-11

<LLD

<LLD NIA-EXT-12

<LLD

<LLD NIA-EXT-13 2.70E-06

<LLD NIA-EXT-14

<LLD

<LLD NIA-EXT-15

<LLD

<LLD 9/26/12 GW-NIA-2

<LLD

<LLD NIA-6

<LLD

<LLD NIA-4

<LLD

<LLD 9/27/12 GW-NIA-1

<LLD

<LLD NIA-3

<LLD

<LLD NIA-5 3.49E-06

<LLD GW-OCA GW-PA GW-NIA NIA and NIA-EXT a priori LLD pCi/ml

= Wells installed in the Owner Controlled Area to implement the Ground Water Protection Initiative.

= Wells installed in the Protected Area to implement the Ground Water Protection Initiative.

= Wells installed in the North Industrial Area to implement the Ground Water Protection Initiative.

= Temporary investigation wells installed in the North Industrial Area

= H-3:3.OE-06 pCi/ml

= indicated microcuries per milliliter ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION ONSITE GROUND WATER SAMPLES (Continued)

Sample Date Location Tritium Activity, pCi/mI Gamma Activity, pCi/ml 9/28/12 NIA-8

<LLD

<LLD NIA-9

<LLD

<LLD 10/1/12 NIA-7

<LLD

<LLD NIA-EXT-13 2.10E-06

<LLD NIA-EXT-15

<LLD

<LLD NIA-EXT-14

<LLD

<LLD 10/2/12 GW-NIA-2 2.25E-06

<LLD NIA-10

<LLD

<LLD NIA-11

<LLD

<LLD NIA-EXT-12

<LLD

<LLD 10/3/12 NIA-4

<LLD

<LLD NIA-6

<LLD

<LLD 10/4/12 GW-NIA-1

<LLD

<LLD NIA-3

<LLD

<LLD NIA-5 3.78E-06

<LLD 10/5/12 NIA-8

<LLD

<LLD NIA-9

<LLD

<LLD 10/8/12 NIA-7

<LLD

<LLD NIA-EXT-15

<LLD

<LLD NIA-EXT-14

<LLD

<LLD 10/9/12 NIA-10

<LLD

<LLD NIA-11

<LLD

<LLD NIA-EXT-12

<LLD

<LLD NIA-EXT-13 2.20E-06

<LLD 10/10/12 GW-NIA-2

<LLD

<LLD NIA-4

<LLD

<LLD NIA-5 5.73E-06

<LLD NIA-6

<LLD

<LLD GW-OCA GW-PA GW-NIA NIA and NIA-EXT a priori LLD pCi/ml

= Wells installed in the Owner Controlled Area to implement the Ground Water Protection Initiative.

= Wells installed in the Protected Area to implement the Ground Water Protection Initiative.

= Wells installed in the North Industrial Area to implement the Ground Water Protection Initiative.

= Temporary investigation wells installed in the North Industrial Area

= H-3: 3.0E-06 pCi/mI

= indicated microcuries per milliliter ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT-2012 SAN ONOFRE NUCLEAR GENERATING STATION ONSITE GROUND WATER SAMPLES (Continued)

Sample Date Location Tritium Activity, pCi/mi Gamma Activity, pCi/ml 10/11/12 NIA-3

<LLD

<LLD 10/12/12 NIA-8

<LLD

<LLD NIA-9

<LLD

<LLD 10/13/12 GW-NIA-1

<LLD

<LLD 10/14/12 GW-NIA-2 2.17E-06

<LLD NIA-10

<LLD

<LLD NIA-11

<LLD

<LLD 10/17/12 NIA-EXT-13

<LLD

<LLD NIA-EXT-14

<LLD

<LLD NIA-EXT-12

<LLD

<LLD 10/18/12 NIA-4

<LLD

<LLD NIA-5 3.83E-06

<LLD NIA-6

<LLD

<LLD 10/19/12 NIA-3

<LLD

<LLD NIA-7

<LLD

<LLD NIA-EXT-15

<LLD

<LLD 10/20/12 GW-NIA-1

<LLD

<LLD NIA-8

<LLD

<LLD NIA-9

<LLD

<LLD 10/24/12 NIA-EXT-12 3.62E-06

<LLD NIA-EXT-13 2.62E-06

<LLD NIA-7

<LLD

<LLD NIA-EXT-14

<LLD

<LLD NIA-EXT-15

<LLD

<LLD 10/25/12 GW-NIA-2

<LLD

<LLD NIA-10

<LLD

<LLD NIA-11

<LLD

<LLD GW-OCA GW-PA GW-NIA NIA and NIA-EXT a priori LLD pCi/ml

= Wells installed in the Owner Controlled Area to implement the Ground Water Protection Initiative.

= Wells installed in the Protected Area to implement the Ground Water Protection Initiative.

= Wells installed in the North Industrial Area to implement the Ground Water Protection Initiative.

= Temporary investigation wells installed in the North Industrial Area

= H-3: 3.OE-06 pCi/ml

= indicated microcuries per milliliter ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION ONSITE GROUND WATER SAMPLES (Continued)

Sample Date Location Tritium Activity, pCi/ml Gamma Activity, pCi/ml 10/26/12 NIA-3

<LLD

<LLD NIA-5 3.82E-06

<LLD NIA-6

<LLD

<LLD NIA-4

<LLD

<LLD 10/27/12 GW-NIA-1

<LLD

<LLD NIA-8

<LLD

<LLD NIA-9

<LLD

<LLD 10/28/12 GW-NIA-2

<LLD

<LLD NIA-10

<LLD

<LLD NIA-11

<LLD

<LLD 10/31/12 NIA-5 3.28E-06

<LLD NIA-6

<LLD

<LLD NIA-4

<LLD

<LLD 11/1/12 GW-NIA-1

<LLD

<LLD NIA-3

<LLD

<LLD NIA-EXT-15

<LLD

<LLD 11/2/12 NIA-7

<LLD

<LLD NIA-EXT-12

<LLD

<LLD NIA-EXT-13

<LLD

<LLD NIA-EXT-14

<LLD

<LLD 11/3/12 NIA-8

<LLD

<LLD NIA-9

<LLD

<LLD 11/4/12 GW-NIA-2

<LLD

<LLD NIA-1O

<LLD

<LLD NIA-11

<LLD

<LLD 11/5/12 NIA-3

<LLD

<LLD NIA-5 3.65E-06

<LLD 11/7/12 NIA-6

<LLD

<LLD NIA-4

<LLD

<LLD GW-OCA GW-PA GW-NIA NIA and NIA-EXT a priori LLD pCi/mi

= Wells installed in the Owner Controlled Area to implement the Ground Water Protection Initiative.

= Wells installed in the Protected Area to implement the Ground Water Protection Initiative.

= Wells installed in the North Industrial Area to implement the Ground Water Protection Initiative.

= Temporary investigation wells installed in the North Industrial Area

= H-3: 3.OE-06 pCi/ml

= indicated microcuries per milliliter ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION ONSITE GROUND WATER SAMPLES (Continued)

Sample Date Location Tritium Activity, pCi/ml Gamma Activity, pCi/ml 11/8/12 NIA-EXT-12

<LLD

<LLD NIA-EXT-13

<LLD

<LLD NIA-EXT-14

<LLD

<LLD NIA-EXT-15

<LLD

<LLD 11/9/12 NIA-8

<LLD

<LLD NIA-9

<LLD

<LLD GW-NIA-1

<LLD

<LLD NIA-7

<LLD

<LLD 11/11/12 GW-NIA-2

<LLD

<LLD NIA-10

<LLD

<LLD NIA-11

<LLD

<LLD NIA-EXT-12

<LLD

<LLD 11/13/12 NIA-5 3.16E-06

<LLD NIA-EXT-13

<LLD

<LLD 11/15/12 NIA-6

<LLD

<LLD NIA-EXT-14

<LLD

<LLD NIA-4

<LLD

<LLD 11/16/12 NIA-3

<LLD

<LLD NIA-8

<LLD

<LLD NIA-9

<LLD

<LLD NIA-EXT-15

<LLD

<LLD GW-NIA-1

<LLD

<LLD NIA-7

<LLD

<LLD 11/19/12 GW-NIA-2

<LLD

<LLD NIA-4

<LLD

<LLD NIA-5 3.27E-06

<LLD NIA-10

<LLD

<LLD NIA-11

<LLD

<LLD NIA-EXT-12

<LLD

<LLD GW-OCA GW-PA GW-NIA NIA and NIA-EXT a priori LLD pCi/ml

= Wells installed in the Owner Controlled Area to implement the Ground Water Protection Initiative.

= Wells installed in the Protected Area to implement the Ground Water Protection Initiative.

= Wells installed in the North Industrial Area to implement the Ground Water Protection Initiative.

= Temporary investigation wells installed in the North Industrial Area

= H-3:3.OE-06 pCi/ml

= indicated microcuries per milliliter ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION ONSITE GROUND WATER SAMPLES (Continued)

Sample Date Location Tritium Activity, pCi/ml Gamma Activity, pCi/ml 11/20/12 GW-NIA-1

<LLD

<LLD NIA-3

<LLD

<LLD NIA-6

<LLD

<LLD NIA-7

<LLD

<LLD 11/21/12 NIA-8

<LLD

<LLD NIA-9

<LLD

<LLD NIA-EXT-13 2.44E-06

<LLD NIA-EXT-14

<LLD

<LLD NIA-EXT-15

<LLD

<LLD 11/27/12 NIA-5 2.93E-06

<LLD NIA-6

<LLD

<LLD NIA-8

<LLD

<LLD NIA-11

<LLD

<LLD GW-NIA-2

<LLD

<LLD GW-NIA-1

<LLD

<LLD 11/28/12 NIA-EXT-12

<LLD

<LLD NIA-EXT-14

<LLD

<LLD NIA-EXT-15

<LLD

<LLD 11/30/12 NIA-EXT-13

<LLD

<LLD 12/3/12 NIA-EXT-12

<LLD

<LLD NIA-EXT-13 2.88E-06

<LLD NIA-EXT-14

<LLD

<LLD NIA-EXT-15

<LLD

<LLD 12/4/12 GW-NIA-2

<LLD

<LLD NIA-5 3.07E-06

<LLD NIA-6

<LLD

<LLD 12/5/12 NIA-10

<LLD

<LLD NIA-11

<LLD

<LLD 12/6/12 GW-OCA-1

<LLD

<LLD 12/7/12 GW-OCA-2

<LLD

<LLD GW-OCA GW-PA GW-NIA NIA and NIA-EXT a priori LLD pCi/ml

= Wells installed in the Owner Controlled Area to implement the Ground Water Protection Initiative.

= Wells installed in the Protected Area to implement the Ground Water Protection Initiative.

= Wells installed in the North Industrial Area to implement the Ground Water Protection Initiative.

= Temporary investigation wells installed in the North Industrial Area

= H-3: 3.OE-06 pCi/mI

= indicated microcuries per milliliter ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION ONSITE GROUND WATER SAMPLES (Continued)

Sample Date Location Tritium Activity, pCi/ml Gamma Activity, pCi/ml 12/8/12 GW-NIA-1

<LLD

<LLD NIA-8

<LLD

<LLD NIA-10

<LLD

<LLD NIA-4

<LLD

<LLD 12/9/12 GW-NIA-2

<LLD

<LLD NIA-5 4.36E-06

<LLD NIA-11

<LLD

<LLD 12/10/12 NIA-EXT-12

<LLD

<LLD NIA-EXT-13

<LLD

<LLD 12/11/12 NIA-6

<LLD

<LLD NIA-EXT-15

<LLD

<LLD NIA-EXT-14

<LLD

<LLD 12/12/12 GW-OCA-3

<LLD

<LLD 12/14/12 GW-PA-2

<LLD

<LLD GW-PA-3

<LLD

<LLD 12/15/12 GW-PA-1

<LLD

<LLD 12/16/12 NIA-EXT-14

<LLD

<LLD NIA-EXT-15

<LLD

<LLD NIA-EXT-12

<LLD

<LLD NIA-EXT-13

<LLD

<LLD 12/17/12 GW-PA-4

<LLD

<LLD 12/19/12 GW-NIA-2

<LLD

<LLD NIA-5 3.67E-06

<LLD NIA-6

<LLD

<LLD NIA-11

<LLD

<LLD 12/20/12 NIA-3

<LLD

<LLD GW-NIA-1

<LLD

<LLD NIA-4

<LLD

<LLD NIA-10

<LLD

<LLD GW-OCA GW-PA GW-NIA NIA and NIA-EXT a priori LLD pCi/ml

= Wells installed in the Owner Controlled Area to implement the Ground Water Protection Initiative.

= Wells installed in the Protected Area to implement the Ground Water Protection Initiative.

= Wells installed in the North Industrial Area to implement the Ground Water Protection Initiative.

= Temporary investigation wells installed in the North Industrial Area

= H-3:3.OE-06 pCi/ml

= indicated microcuries per milliliter ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION ONSITE GROUND WATER SAMPLES (Continued)

Sample Date Location Tritium Activity, pCi/ml Gamma Activity, pCi/ml 12/21/12 NIA-8 2.19E-06

<LLD NIA-9

<LLD

<LLD NIA-7

<LLD

<LLD 12/23/12 NIA-EXT-12

<LLD

<LLD NIA-EXT-13

<LLD

<LLD NIA-EXT-14

<LLD

<LLD NIA-EXT-15

<LLD

<LLD 12/27/12 GW-NIA-2

<LLD

<LLD NIA-5 4.17E-06

<LLD NIA-6

<LLD

<LLD NIA-11

<LLD

<LLD 12/28/12 NIA-3

<LLD

<LLD NIA-4

<LLD

<LLD NIA-7

<LLD

<LLD NIA-10

<LLD

<LLD 12/29/12 GW-NIA-1

<LLD

<LLD NIA-8

<LLD

<LLD 12/30/12 NIA-EXT-12

<LLD

<LLD NIA-EXT-13

<LLD

<LLD NIA-EXT-14

<LLD

<LLD NIA-EXT-15

<LLD

<LLD GW-OCA GW-PA GW-NIA NIA and NIA-EXT a priori LLD pCi/ml

= Wells installed in the Owner Controlled Area to implement the Ground Water Protection Initiative.

= Wells installed in the Protected Area to implement the Ground Water Protection Initiative.

= Wells installed in the North Industrial Area to implement the Ground Water Protection Initiative.

= Temporary investigation wells installed in the North Industrial Area

= H-3: 3.0E-06 pCi/ml

= indicated microcuries per milliliter ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT-2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION K. MISCELLANEOUS (Continued) 40 CFR 190 REQUIREMENTS The Table below presents the annual site-wide doses and percent of ODCM Specification limits to members of the public. These values were calculated utilizing doses resulting from all effluent pathways and direct radiation. The different categories presented are: (1) Total Body, (2) Limiting Organ, and (3) Thyroid.

Dose Category Units Year

1.

Total Body

a.

Total Body Dose mrem 9.65E-01

b.

Percent ODCM Specification Limit 3.86E+00

2.

Limiting Organ

a.

Organ Dose (GI-LLI) mrem 6.22E-02

b.

Percent ODCM Specification Limit 2.49E-01

3.

Thyroid

a.

Thyroid Dose mrem 3.61E-02

b.

Percent ODCM Specification Limit 4.81 E-02 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION K. MISCELLANEOUS (Continued)

CARBON-14 In June, 2009, the NRC revised its guidance in Regulatory Guide (RG) 1.21, "Measuring, Evaluating and Reporting Radioactivity In Solid Wastes And Releases Of Radioactive Materials In Liquid And Gaseous Effluents From Light-Water-Cooled Nuclear Power Plants", Revision 2. RG 1.21 explains, that in part, the quantity of carbon-14 (C-14) discharged can be estimated by sample measurements or by use of a normalized C-14 source term and scaling factors based on power generation or estimated by use of the GALE code from NUREG-0017. The dose contribution of C-14 from liquid radioactive waste is much less than that contributed by gaseous radioactive waste, evaluation of C-14 in liquid radioactive waste is not required. Revision 2 to RG 1.21 guidance includes:

If sampling is performed, the sampling frequency may be adjusted to that interval that allows adequate measurement and reporting of effluents.

If estimating C-14 based on scaling factors and fission rates, a precise and detailed evaluation of C-14 is not necessary. It is not necessary to calculate uncertainties for C-14 or to include C-14 uncertainty in any subsequent calculation of overall uncertainty.

Electric Power Research Institute (EPRI) Technical Report 1021106, "Estimation of Carbon-14 in Nuclear Power Plant Gaseous Effluents," was used to estimate the production and release quantities of C-14.

C-14 calculated production, discharge parameters and resulting dose are reported here, separately from tables 1, 1A, 1C, 1E, 2 and 40CFR190 table 1.

Calculated C-14 production, Ci/EFPY()

U2 = 13.8 U3 = 13.7 2012 Unit capacity factors U2 = 0.016 U3 = 0.085 Fraction release of produced C-14 to atmosphere 0.98 C-14 chemical form fraction assumed Organic

= 0.80 Inorganic

= 0.20 U2 = 0.23 C-14 curies released to atmosphere U3 = 1.17 Critical receptor dose(2) [Child (bone)], mrem 6.36E-02 (1) Effective Full Power Year (2) Due to ingestion of leafy and non-leafy vegetables in the NNW sector ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 SAN ONOFRE NUCLEAR GENERATING STATION SECTION L. SONGS CONCLUSIONS Gaseous releases (excluding carbon-14) totaled 2.03E+02 curies of which noble gases were 1.1 3E+02 curies, iodines were 4.47E-04 curies, particulates were 4.46E-04 curies and tritium was 8.98E+01 curies.

" The radiation doses from gaseous releases were: (a) gamma air dose: 3.06E-02 mrad at the site boundary, (b) beta air dose: 7.68E-02 mrad at the site boundary, (c) organ dose (child thyroid):

3.39E-02 mrem at the highest receptor.

" Airborne carbon-14 release was projected at 1.40 curies. The radiation dose from carbon-14 was an organ dose of 6.36E-02 mrem at the highest receptor.

Liquid releases totaled 9.77E+02 curies of which particulates and iodines were 1.15E-01 curies, tritium was 9.74E+02 curies, and noble gases were 3.26E+00 curies.

The radiation doses from liquid releases were: (a) total body: 4.75E-03 mrem, (b) limiting organ (GI-LLI): 2.83E-02 mrem.

The radioactive releases and resulting doses generated from Units 2 and 3 were below the Applicable Limits for both gaseous and liquid effluents.

SONGS Units 2 and 3 made 32 radwaste shipments to EnergySolutions UT, EnergySolutions Bear Creek Operations, and Toxco Inc. Toxco did not ship SONGS waste to a disposal site in 2012. The total volume of the shipments was 9.57E+02 cubic meters containing 1.15E+02 curies of radioactivity. There were no Unit 1 or common radwaste shipments.

Meteorological conditions during the year were typical for SONGS. Meteorological dispersion was good 37% of the time, fair 40% of the time and poor 23% of the time.

The results of samples taken from on-site ground water wells in support of the Industry Ground Water Protection Initiative are reported in Section K. The total volume of groundwater and dewatering wells released from the site in 2012 through an ODCM credited release point was 344,700 gallons.

The results of on-site ground water samples taken in support of the industry Ground Water Protection Initiative are reported in Section K. There are low but detectable concentrations of tritium that have been identified in shallow ground water the area formerly occupied by Unit 1.

The ground water beneath SONGS is not a source of drinking water. The affected shallow ground water is being extracted and released under the radioactive effluent control program and is accounted for in this ARERR.

The net result from the analysis of these effluent releases indicates that the operation of SONGS has met all the requirements of the applicable regulations that ensure adequate protection of the health of members of the public.

METEOROLOGY The meteorology of the San Onofre Nuclear Generating Station for each of the four quarters, 2012 is described in this section. Meteorological measurements have been made according to the guidance provided in USNRC Regulatory Guide 1.23, "Onsite Meteorological Programs." A summary report of the meteorological measurements taken during each calendar quarter are presented in Table 4A as joint frequency distribution (JFD) of wind direction and wind speed by atmospheric stability class.

Hourly meteorological data for batch releases have been recorded for the periods of actual release.

These data are available, as well as the hourly data for the Annual Report, but have not been included in this report because of the bulk of data records.

Table 4A lists the joint frequency distribution for each quarter, 2012. Each page of Table 4A represents the data for the individual stability classes: A, B, C, D, E, F, and G. The last page of each section is the JFD for all the stability classes. The wind speeds have been measured at the 10 meter level, and the stability classes are defined by the temperature differential between the 10 meter and 40 meter levels.

ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 METEOROLOGY January - March Table 4A SITE: SAN ONOFRE PERIOD OF RECORD 12010100-12033123 WIND SPEED (M/S) AT 10 METER LEVEL PASQUILL A EXTREMELY UNSTABLE (DT/DZ < - 1.9 'C/100 METERS)

Wind Dir N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW 0.22 0.5 0

2 0

0 0

0 0.51 0.75 0

0 0

0 0.76 1

0 0

00 1.1 1.6 2.1 3.1 1.5 2

3 5

0 0

0 1

0 0

0 1

1 0

0 0

0 1

0 0

0 1

0 0

0 2

0 0

18 15 0

5 33 23 0

6 22 14 0

6 32 22 2

11 35 25 1

5 27 60 1

1 6

12 2

1 0

0 1

0 0

0 5.1 7

0 0

0 7

2 1

22 5

6 10 7.1 10 0

0 0

0 1

01 1

8 00 0

10.1 13 0

0 0

0 13.1 18 0

0 0

0

>18 TOTAL 0

0 0

0 1

22 0

3 40 64 43 63 76 106 26 4

1 TOTALS 2

0 0

7 38 174 174 26 12 0

0 0

433 NUMBER OF VALID HOURS 433 NUMBER OF CALMS 0

NUMBER OF INVALID HOURS 0

TOTAL HOURS FOR THE PERIOD 433 PASQUILL B MODERATELY UNSTABLE ( - 1.9 < DT/DZ < - 1.7 °C/1 00 METERS)

Wind 0.22 0.51 0.76 1.1 1.6 2.1 3.1 5.1 7.1 10.1 13.1

>18 TOTAL Dir 0.5 0.75 1

1.5 2

3 5

7 10 13 18 N

0 0

0 1

0 0

1 NNE 0

0 0

NE 0

0 0

0 1

0 0

0 1

ENE 0

0 0

0 1

0 0

0 1

E 0

0 0

0 1

0 0

0 1

ESE 0

0 0

SE 0

0 0

1 4

0 0

0 5

SSE 0

0 0

2 4

2 0

0 0

0 8

S 0

0 0

0 1

2 2

0 0

0 5

SSW 0

0 0

0 1

3 3

5 0

0 0

0 12 SW 0

0 0

1 6

2 4

0 1

0 0

0 14 WSW 0

0 0

1 2

2 1

0 1

0 0

0 7

W 0

0 0

0 1

2 0

0 0

0 5

WNW 0

0 0

1 3

1 0

0 0

0 5

NW 0

0 0

0 1

0 0

0 1

NNW 0

0 0

1 0

0 0

0 2

TOTALS 0

0 0

3 13 16 23 11 2

0 0

0 68 NUMBER OF VALID HOURS NUMBER OF INVALID HOURS 68 0

NUMBER OF CALMS TOTAL HOURS FOR THE PERIOD 0

68 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 METEOROLOGY January - March Table 4A SITE: SAN ONOFRE PERIOD OF RECORD 12010100-12033123 WIND SPEED (M/S) AT 10 METER LEVEL PASQUILL C SLIGHTLY UNSTABLE ( -1.7 < DT/DZ < - 1.5 °C/100 METERS)

Wind Dir N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW 0.22 0.51 0.76 0.5 0.75 1

0 0

1.1 1.5 1

0 0

0 1

1 0

0 0

00 1

0 0

1.6 2

0 1

0 0

0 01 0

31 1

1 2

5 0

0 2.1 3

0 0

31 2

01 0

2 2

01 3.1 5.1 7.1 10.1 13.1 5

7 10 13 18 0

0 0

0 2

0 0

4 3

1 1

0 3

1 0

0 0

3 4

0 0

0 1

1 1

0 0

2 1

0 0

0 1

1 0

0 0

0

>18 TOTAL 0

0 0

0 9

11 9

8 5

4 4

8 21 TOTALS 0

0 0

4 15 12 16 11 4

1 0

0 63 NUMBER OF VALID HOURS 63 NUMBER OF CALMS 0

NUMBER OF INVALID HOURS 0

TOTAL HOURS FOR THE PERIOD 63 PASQUILL D NEUTRAL ( - 1.5 < DT/DZ < - 0.5 °C/1 00 METERS)

Wind 0.22 0.51 0.76 1.1 1.6 2.1 3.1 5.1 7.1 10.1 13.1

>18 TOTAL Dir 0.5 0.75 1

1.5 2

3 5

7 10 13 18 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW TOTALS 0

0 0

0 2

0 0

0 2

0 0

0 1

00 1

1 0

0 1

0 0

1 0

0 4

5 2

4 4

0 0

5 2

6 1

2 0

0 2

4 5

0 0

1 4

3 0

0 0

2 1

5 6

0 1

3 2

5 34 5

2 0

3 25 32 14 3

5 12 14 17 7

5 2

4 7

9 3

2 3

6 3

5 6

1 3

1 2

3 3

0 1

4 3

2 6

9 4

3 13 7

4 15 0

2 14 18 4

3 3

2 10 8

1 0

2 2

1 2

0 0

39 52 119 153 55 41 0

0 0

3 0

0 0

1 0

0 0

0 4

0 0

0 1

0 0

00 1

0 16 0

17 0

11 0

8 0

18 0

51 0

77 0

64 0

27 0

24 0

12 0

26 0

46 0

43 0

24 0

7 0

471 NUMBER OF VALID HOURS NUMBER OF INVALID HOURS 471 0

NUMBER OF CALMS TOTAL HOURS FOR THE PERIOD 0

471 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 METEOROLOGY January - March Table 4A SITE: SAN ONOFRE PERIOD OF RECORD 12010100-12033123 WIND SPEED (M/S) AT 10 METER LEVEL PASQUILL E SLIGHTLY STABLE ( - 0.5 < DT/DZ <1.5 0C100 METERS)

Wind Dir N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW 0.22 0.51 0.76 0.5 0.75 1

0 0

1 0

0 1

0 0

1 0

0 0

1 0

0 0

1 0

0 0

0 1

0 0

1.1 1.5 5

7 4

9 0

1 0

1 3

2 7

0 0

6 2

4 1.6 2.1 2

3 5

13 8

18 8

2 5

10 7

12 2

10 0

7 1

4 1

1 1

0 1

6 9

1 3

10 2

12 1

9 6

10 3.1 5.1 7.1 10.1 13.1 5

7 10 13 18 2

0 0

17 5

3 0

0 0

1 2

0 0

2 1

0 0

0 4

0 0

3 0

1 0

0 2

6 0

0 0

1 0

0 0

1 0

0 0

1 1

0 0

0 5

3 1

0 0

7 1

4 0

0 5

1 0

0 0

1 0

0 0

0

>18 TOTAL 0

0 0

0 26 59 18 27 24 17 16 7

6 3

14 12 22 33 18 21 I

TOTALS 0

0 6

51 60 125 50 20 11 0

0 0

323 NUMBER OF VALID HOURS 323 NUMBER OF CALMS 0

NUMBER OF INVALID HOURS 0

TOTAL HOURS FOR THE PERIOD 323 PASQUILL F MODERATELY STABLE (1.5 < DT/DZ <4.0 °C/100 METERS)

Wind 0.22 0.51 0.76 1.1 1.6 2.1 3.1 5.1 7.1 10.1 13.1

>18 TOTAL Dir 0.5 0.75 1

1.5 2

3 5

7 10 13 18 N

0 0

1 7

16 12 4

0 0

0 40 NNE 0

0 2

15 25 31 6

0 0

0 79 NE 0

0 2

22 12 9

1 0

0 0

46 ENE 0

0 0

6 3

6 0

0 0

0 15 E

2 0

0 5

3 3

0 0

13 ESE 0

0 0

2 2

1 0

0 0

0 5

SE 1

0 0

2 3

1 1

0 0

0 8

SSE 0

0 0

0 1

1 1

0 0

0 3

S 0

0 1

2 3

2 1

0 1

0 0

0 10 SSW 0

0 0

2 2

1 1

0 0

0 6

SW 1

0 0

0 3

2 0

0 0

0 6

WSW 0

0 0

1 3

0 0

0 4

W 0

0 0

2 4

9 2

0 0

0 17 WNW 0

0 2

4 5

2 1

0 0

0 14 NW 0

0 0

2 6

10 2

0 0

0 20 NNW 0

0 0

1 10 6

5 0

0 0

22 TOTALS 4

0 8

73 101 96 25 0

1 0

0 0

308 NUMBER OF VALID HOURS NUMBER OF INVALID HOURS 308 0

NUMBER OF CALMS TOTAL HOURS FOR THE PERIOD 0

308 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT -2012 METEOROLOGY January - March Table 4A SITE: SAN ONOFRE PERIOD OF RECORD 12010100-12033123 WIND SPEED (M/S) AT 10 METER LEVEL PASQUILL G EXTREMELY STABLE (DT/DZ > 4.0 °C/100 METERS)

Wind Dir N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW 0.22 0.5 0

0 0

0 1

0 0

0 00 0.51 0.75 0

0 0

0 0.761 2

1 3

0 3

1 0

0 0

10 1

0 1

1.1 1.6 2.1 1.5 2

3 2

5 20 3

18 127 6

17 17 4

7 2

4 0

4 3

1 4

2 2

1 3

0 3

0 0

1 5

2 0

3 3

2

.0 1

2 1

0 2

1 4

7 1

4 3

1 0

6 3.1 5

44 109 8

41 1

1 01 2

3 1

5 5

33 5.1 7

5 0

2 0

0 0

00 7.1 10 0

0 0

0 00 10.1 13 0

0 0

0 00 13.1 18 0

0 0

0 00

>18 TOTAL 0

0 0

0 00 78 258 53 18 10 9

9 7

2 9

12 5

8 18 11 11 TOTALS 1

0 15 39 64 201 191 7

0 0

518 NUMBER OF VALID HOURS 518 NUMBER OF CALMS 0

NUMBER OF INVALID HOURS 0

TOTAL HOURS FOR THE PERIOD 518 ALL STABILITY CLASSES, ALL DT/DZ WIND SPEED (M/S) AT 10 METER LEVEL Wind 0.22 0.51 0.76 1.1 1.6 2.1 3.1 5.1 7.1 10.1 13.1

>18 TOTAL Dir 0.5 0.75 1

1.5 2

3 5

7 10 13 18 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW TOTALS 0

2 0

0 4

0 1

0 00 2

0 0

0 9

0 0

0 1

00 1

5 20 28 49 55 6

5 30 54 182 133 7

6 32 41 33 14 3

1 20 19 21 7

1 3

11 13 24 11 0

0 9

8 20 38 5

4 5

9 38 44 20 1

10 14 43 42 19 1

7 17 48 39 7

0 12 19 29 28 16 0

14 21 47 33 6

1 5

31 43 32 10 0

8 18 65 79 14 5

13 19 44 46 12 0

10 14 32 20 4

1 10 18 25 11 0

33 216 343 743 632 130 0

3 2

0 1

3 6

6 4

1 3

11 24 7

0 0

71 0

0 0

4 0

0 0

1 0

0 0

0 5

0 0

0 1

0 0

00 1

0 163 0

416 0

131 0

69 0

67 0

83 0

127 0

140 0

123 0

105 0

126 0

134 0

208 0

147 0

80 0

65 0

2184 NUMBER OF VALID HOURS NUMBER OF INVALID HOURS 2184 0

NUMBER OF CALMS TOTAL HOURS FOR THE PERIOD 0

2184 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 METEOROLOGY April - June TABLE 4A SITE: SAN ONOFRE PERIOD OF RECORD 12040100-12063023 WIND SPEED (M/S) AT 10 METER LEVEL PASQUILL A EXTREMELY UNSTABLE (DT/DZ < - 1.9 °C/100 METERS)

Wind Dir N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW TOTALS 0.22 0.5 0

0 0

0.51 0.75 0

0 0

0.76 1

0 0

0 1.1 1.5 0

0 0

11 1

1 0

00 4

1.6 2

0 0

01 4

3 12 14 7

0 0

0 41 2.1 3

0 0

0 5

15 40 47 88 50 13 2

2 262 3.1 5

0 0

2 14 59 68 50 93 111 401 0

438 5.1 7

0 0

1 7

30 1

2 1

8 7

0 0

57 7.1 10 0

0 0

0 1

0 0

00 2

0 0

3 10.1 13 0

0 0

1 0

0 0

0 00 1

13.1 18 0

0 0

>18 TOTAL 0

0 0

3 28 109 113 112 197 177 62 3

2 806 NUMBER OF VALID HOURS 806 NUMBER OF CALMS 0

NUMBER OF INVALID HOURS 0

TOTAL HOURS FOR THE PERIOD 806 PASQUILL B MODERATELY UNSTABLE ( - 1.9 < DT/DZ < - 1.7 0C/100 METERS)

Wind 0.22 0.51 0.76 1.1 1.6 2.1 3.1 5.1 7.1 10.1 13.1

>18 TOTAL Dir 0.5 0.75 1

1.5 2

3 5

7 10 13 18 N

0 0

0 NNE 0

0 0

1 0

0 0

0 1

NE 0

0 0

ENE 0

0 0

E 0

0 0

ESE 0

0 0

1 0

0 0

0 1

SE 0

0 0

0 1

0 2

1 0

0 0

0 4

SSE 0

0 0

0 1

4 8

3 2

0 0

0 18 S

0 0

0 4

13 1

0 0

18 SSW 0

0 0

1 3

5 8

0 0

0 17 SW 0

0 0

0 2

1 2

1 0

0 0

0 6

WSW 0

0 0

0 2

5 1

0 0

0 8

W 0

0 0

1 4

0 0

1 0

0 0

0 6

WNW 0

0 0

2 3

7 3

0 0

0 15 NW 0

0 0

1 5

0 0

0 6

NNW 0

0 0

0 1

1 0

0 0

0 2

TOTALS 0

0 0

5 17 29 42 7

2 0

0 0

102 NUMBER OF VALID HOURS NUMBER OF INVALID HOURS 102 0

NUMBER OF CALMS TOTAL HOURS FOR THE PERIOD 0

102 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT-2012 METEOROLOGY April - June TABLE 4A SITE: SAN ONOFRE PERIOD OF RECORD 12040100-12063023 WIND SPEED (M/S) AT 10 METER LEVEL PASQUILL C SLIGHTLY UNSTABLE ( -1.7 < DT/DZ < - 1.5 0C/1 00 METERS)

Wind Dir N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW 0.22 0.5 0

0 0

0 0.51 0.75 0

0 0

0 0.76 1

0 0

00 1.1 1.5 0

2 0

0 0

0 2

0 0

2 0

0 2

4 0

1 1.6 2

3 4

0 0

2 0

0 3

1 1

1 9

3 2

2 3

2.1 3

2 3

1 0

3 6

5 7

6 4

3 7

3 0

3.1 5

0 0

12 21 13 8

4 0

3 2

6 0

5.1 7

0 0

6 6

5 0

0 3

2 0

0 0

7.1 10 0

0 0

0 1

9 0

0 0

1 0

0 10.1 13 0

0 0

0 1

0 0

0 00 13.1 18 0

0 0

0

>18 TOTAL 0

0 0

0 5

9 1

0 3

0 24 45 25 18 11 16 13 16 11 4

TOTALS 0

0 0

13 34 51 69 22 11 1

0 0

201 NUMBER OF VALID HOURS 201 NUMBER OF CALMS 0

NUMBER OF INVALID HOURS 0

TOTAL HOURS FOR THE PERIOD 201 PASQUILL D NEUTRAL ( - 1.5 < DT/DZ < - 0.5 0C/1 00 METERS)

Wind 0.22 0.51 0.76 1.1 1.6 2.1 3.1 5.1 7.1 10.1 13.1

>18 TOTAL Dir 0.5 0.75 1

1.5 2

3 5

7 10 13 18 N

0 1

0 9

12 7

1 0

0 0

30 NNE 0

0 0

5 8

20 2

0 0

0 35 NE 0

1 1

2 6

3 0

0 0

0 13 ENE 0

1 0

2 2

4 0

0 0

0 9

E 0

0 2

0 12 16 5

0 0

0 35 ESE 0

0 0

4 7

25 22 0

0 0

58 SE 0

0 0

3 13 33 53 7

3 1

0 0

113 SSE 0

0 0

3 18 28 30 3

1 3

0 0

86 S

0 0

1 7

13 16 6

3 1

0 0

0 47 SSW 0

0 1

7 14 17 3

3 0

0 0

0 45 SW 0

0 1

14 6

6 2

1 0

0 0

0 30 WSW 0

0 0

10 7

8 7

2 1

0 0

0 35 W

0 0

3 10 9

3 4

3 3

5 0

0 40 WNW 0

0 0

8 8

6 3

0 7

1 0

0 33 NW 0

0 1

6 14 3

8 0

0 0

32 NNW 0

0 3

9 7

6 0

0 0

0 25 TOTALS 0

3 13 99 156 201 146 22 16 10 0

0 666 NUMBER OF VALID HOURS NUMBER OF INVALID HOURS 666 0

NUMBER OF CALMS TOTAL HOURS FOR THE PERIOD 0

666 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 METEOROLOGY April - June TABLE 4A SITE: SAN ONOFRE PERIOD OF RECORD 12040100-12063023 WIND SPEED (M/S) AT 10 METER LEVEL PASQUILL E SLIGHTLY STABLE ( -0.5 < DT/DZ < 1.5 °C/100 METERS)

Wind Dir N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW 0.22 0.5 0

0 0

0 0.51 0.75 0

0 0

0 1

0 0

0 1

0 0

00 0

0.76 0

1 2

0 0

0 1

0 0

0 1

1.1 1.5 6

9 31 3

2 0

2 2

2 21 1

0 12 1.6 2

8 16 3

4 41 1

0 21 1

4 21 0

3 2.1 3

5 10 1

2 4

4 2

0 1

1 1

1 3

2 3

1 3.1 5

0 3

01 3

0 1

00 2

0 1

0 01 2

5.1 7

0 0

0 1

0 0

7.1 10 0

0 0

0 10.1 13 0

0 0

0 13.1 18 0

0 0

0

> 18 TOTAL 0

0 0

0 20 39 8

8 15 9

5 2

5 6

5 8

6 4

5 9

TOTALS 0

2 8

37 51 41 14 1

0 0

154 NUMBER OF VALID HOURS 154 NUMBER OF CALMS 0

NUMBER OF INVALID HOURS 0

TOTAL HOURS FOR THE PERIOD 154 PASQUILL F MODERATELY STABLE (1.5 < DT/DZ L) 4.0 0C/100 METERS)

Wind 0.22 0.51 0.76 1.1 1.6 2.1 3.1 5.1 7.1 10.1 13.1

>18 TOTAL Dir 0.5 0.75 1

1.5 2

3 5

7 10 13 18 N

0 0

0 3

12 12 5

0 0

0 32 NNE 0

0 1

11 28 32 3

0 0

0 75 NE 0

0 2

8 4

0 0

0 14 ENE 0

0 1

1 2

0 0

0 4

E 0

0 0

0 1

0 0

0 1

ESE 0

0 0

1 0

0 0

0 1

SE 0

0 0

SSE 0

0 0

1 0

0 1

0 0

0 2

S 0

0 0

2 0

0 0

0 2

SSW 0

0 0

SW 0

0 0

2 0

0 0

0 2

WSW 0

0 1

0 2

0 0

0 3

W 0

0 0

0 1

0 0

0 1

WNW 0

0 0

0 1

0 0

0 1

NW 0

0 0

1 0

0 0

0 1

NNW 0

0 1

0 3

2 0

0 0

0 6

TOTALS 0

0 6

30 54 46 9

0 0

0 145 NUMBER OF VALID HOURS NUMBER OF INVALID HOURS 145 0

NUMBER OF CALMS TOTAL HOURS FOR THE PERIOD 0

145 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT-2012 METEOROLOGY April - June TABLE 4A SITE: SAN ONOFRE PERIOD OF RECORD 12040100-12063023 WIND SPEED (M/S) AT 10 METER LEVEL PASQUILL G EXTREMELY STABLE (DT/DZ > 4.0 °C/100 METERS)

Wind Dir N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW 0.22 0.5 0

0 0

0 0.51 0.75 0

0 0

0 0.76 1

0 1

0 0

1.1 1.5 0

0 0

0 2

0 0

0 1

0 0

0 00 1.6 2

0 8

0 0

0 1

0 00 1

2.1 3

7 54 4

0 0

1 1

0 0

0 21 0

0 3.1 5

4 19 0

0 0

0 1

0 0

0 11 0

0 5.1 7

0 0

7.1 10 0

0 0

0 10.1 13 0

0 0

0 13.1 18 0

0 0

0

>18 TOTAL 0

0 0

0 11 82 4

0 0

1 3

0 1

1 3

2 0

1 TOTALS 0

0 1

3 10 70 26 0

0 0

110 NUMBER OF VALID HOURS 110 NUMBER OF CALMS 0

NUMBER OF INVALID HOURS 0

TOTAL HOURS FOR THE PERIOD 110 ALL STABILITY CLASSES, ALL DT/DZ WIND SPEED (M/S) AT 10 METER LEVEL Wind 0.22 0.51 0.76 1.1 1.6 2.1 3.1 5.1 7.1 10.1 13.1

>18 TOTAL Dir 0.5 0.75 1

1.5 2

3 5

7 10 13 18 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW TOTALS 0

0 0

1 0

0 01 0

0 0

0 00 0

5 1

3 4

1 3

2 0

0 2

3 0

1 5

28 18 27 13 4

3 8

7 6

11 13 20 12 15 14 8

12 191 35 33 64 120 13 9

8 6

19 21 8

30 15 39 23 43 20 41 22 70 22 61 39 106 26 61 15 36 16 12 18 12 363 700 10 0

27 0

0 0

1 0

8 0

22 0

70 15 74 19 92 39 89 4

58 4

102 6

119 14 49 8

21 0

2 0

744 109 0

0 0

0 4

12 2

0 0

1 3

10 0

0 32 0

0 0

0 1

4 1

0 00 5

1 0

0 12 0

0 0

0 98 0

241 0

40 0

21 0

54 0

70 0

152 0

181 0

207 0

199 0

167 0

268 0

246 0

133 0

58 0

49 0

2184 NUMBER OF VALID HOURS NUMBER OF INVALID HOURS 2184 0

NUMBER OF CALMS TOTAL HOURS FOR THE PERIOD 0

2184 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 METEOROLOGY July - September TABLE 4A SITE: SAN ONOFRE PERIOD OF RECORD 12070100-12093023 WIND SPEED (M/S) AT 10 METER LEVEL PASQUILL A EXTREMELY UNSTABLE (DT/DZ < - 1.9 °C/1 00 METERS)

Wind Dir N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW 0.22 0.5 0

0 0

0 0.51 0.75 0

0 0

0 0.76 1

0 0

00 1.1 1.5 0

0 0

0 1

0 00 1

4 5

3 3

11 0

1.6 2

0 0

0 2

10 10 10 29 71 2

0 2.1 3.1 3

5 0

0 0

1 3

7 17 29 30 48 45 26 72 47 105 143 23 77 1

2 0

0 5.1 7

0 0

1 1

5 1

1 2

0 2

0 0

7.1 10 0

0 0

0 10.1 13 0

0 0

0 13.1 18 0

0 0

0

> 18 TOTAL 0

0 0

01 0

2 13 62 93 87 153 258 104 6

0 TOTALS 0

0 0

19 71 296 380 13 0

0 0

0 779 NUMBER OF VALID HOURS 779 NUMBER OF CALMS 0

NUMBER OF INVALID HOURS 0

TOTAL HOURS FOR THE PERIOD 779 PASQUILL B MODERATELY UNSTABLE ( - 1.9 < DT/DZ < - 1.7 °C/100 METERS)

Wind 0.22 0.51 0.76 1.1 1.6 2.1 3.1 5.1 7.1 10.1 13.1

>18 TOTAL Dir 0.5 0.75 1

1.5 2

3 5

7 10 13 18 N

0 0

0 1

1 0

0 0

2 NNE 0

0 0

NE 0

0 0

1 0

0 0

0 1

ENE 0

0 0

E 0

0 0

ESE 0

0 0

SE 0

0 0

0 1

0 0

0 1

SSE 0

0 0

1 2

0 1

1 0

0 0

0 5

S 0

0 0

0 2

2 10 0

0 0

14 SSW 0

0 1

1 4

6 3

2 0

0 0

0 17 SW 0

0 0

2 2

2 1

0 0

0 7

WSW 0

0 0

1 3

1 1

0 0

0 6

W 0

0 0

1 5

2 0

0 0

0 8

WNW 0

0 0

0 4

5 1

2 0

0 0

0 12 NW 0

0 0

0 2

0 0

0 2

NNW 0

0 0

TOTALS 0

0 1

7 23 19 20 5

0 0

75 NUMBER OF VALID HOURS NUMBER OF INVALID HOURS 75 0

NUMBER OF CALMS TOTAL HOURS FOR THE PERIOD 0

75 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 METEOROLOGY July - September TABLE 4A SITE: SAN ONOFRE PERIOD OF RECORD 12070100-12093023 WIND SPEED (M/S) AT 10 METER LEVEL PASQUILL C SLIGHTLY UNSTABLE (- 1.7 < DT/DZ-< - 1.5 °C/1 00 METERS)

Wind Dir N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW 0.22 0.5 0

0 0

0 0.51 0.75 0

0 0

0 0.76 1

0 0

0 1

0 0

00 1.1 1.5 1

1 0

0 0

0 2

0 1

14 0

1 1

1.6 2

0 0

0 2

2 3

3 5

7 4

1 1

2.1 3

0 0

1 0

00 2

4 4

3 7

8 9

6 5

0 3.1 5

0 0

0 6

13 3

0 2

1 4

2 0

5.1 7

0 0

7.1 10 0

0 0

0 10.1 13 0

0 0

0 13.1 18 0

0 0

0

>18 TOTAL 0

0 0

2 12 21 10 11 16 21 14 9

2 TOTALS 0

0 1

12 28 49 31 0

0 0

121 NUMBER OF VALID HOURS 121 NUMBER OF CALMS 0

NUMBER OF INVALID HOURS 0

TOTAL HOURS FOR THE PERIOD 121 PASQUILL D NEUTRAL ( - 1.5 < DT/DZ < - 0.5 0C/1 00 METERS)

Wind 0.22 0.51 0.76 1.1 1.6 2.1 3.1 5.1 7.1 10.1 13.1

>18 TOTAL Dir 0.5 0.75 1

1.5 2

3 5

7 10 13 18 N

0 0

1 11 7

6 0

0 0

0 25 NNE 0

1 2

8 12 12 1

0 0

0 36 NE 0

0 1

3 3

0 1

0 0

0 8

ENE 0

0 2

4 1

1 0

0 0

0 8

E 0

0 1

1 5

1 0

0 0

0 8

ESE 0

0 1

5 9

6 1

0 0

0 22 SE 0

1 1

7 16 40 39 2

0 0

106 SSE 0

0 0

10 14 36 57 4

0 0

121 S

0 0

1 12 18 29 13 0

0 0

73 SSW 0

0 0

10 10 11 2

0 0

0 33 SW 0

1 2

7 9

2 2

0 0

0 23 WSW 0

2 1

12 7

5 2

0 0

0 29 W

0 1

2 17 11 12 13 0

0 0

56 WNW 0

1 5

14 8

19 8

0 0

0 55 NW 0

1 3

16 15 17 16 0

0 0

68 NNW 0

0 4

15 5

4 0

0 0

0 28 TOTALS 0

8 27 152 150 201 155 6

0 0

699 NUMBER OF VALID HOURS NUMBER OF INVALID HOURS 699 0

NUMBER OF CALMS TOTAL HOURS FOR THE PERIOD 0

699 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 METEOROLOGY July - September TABLE 4A SITE: SAN ONOFRE PERIOD OF RECORD 12070100-12093023 WIND SPEED (M/S) AT 10 METER LEVEL PASQUILL E SLIGHTLY STABLE ( - 0.5 < DT/DZ < 1.5 °C/1 00 METERS)

Wind Dir N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW 0.22 0.5 0

0 0

1 0

0 0

0 00 0.51 0.75 0

0 0

0 2

2 0

0 1

1 0.76 1

3 8

3 3

1 3

1 33 2

0 3

1.1 1.5 4

12 12 4

5 5

3 6

6 3

6 6

6 9

17 1.6 2

12 131 5

8 2

2 4

3 2

0 3

2 1

4 6

2.1 3

8 12 0

0 3

0 14 61 1

0 0

0 4

4 2

3.1 5

0 2

0 0

0 1

16 2

0 0

2 6

5 0

5.1 7

0 0

6 3

0 0

1 0

7.1 10 0

0 0

0 10.1 13 0

0 0

0 13.1 18 0

0 0

0

>18 TOTAL 0

0 0

0 27 47 16 12 17 11 42 24 11 10 11 13 10 23 16 19 TOTALS 1

6 40 95 68 55 34 10 0

0 0

0 309 NUMBER OF VALID HOURS 309 NUMBER OF CALMS 0

NUMBER OF INVALID HOURS 0

TOTAL HOURS FOR THE PERIOD 309 PASQUILL F MODERATELY STABLE (1.5 < DT/DZ < 4.0 °C/100 METERS)

Wind 0.22 0.51 0.76 1.1 1.6 2.1 3.1 5.1 7.1 10.1 13.1

>18 TOTAL Dir 0.5 0.75 1

1.5 2

3 5

7 10 13 18 N

0 0

1 3

4 7

0 0

15 NNE 0

0 2

15 18 17 3

0 0

0 55 NE 0

0 2

4 3

0 0

0 9

ENE 0

0 2

1 0

3 0

0 0

0 6

E 0

0 0

2 3

0 0

0 5

ESE 0

0 0

1 0

0 0

0 1

SE 0

0 0

0 2

1 2

0 0

0 5

SSE 0

0 0

1 0

0 0

0 1

S 0

0 0

2 0

1 0

0 0

0 3

SSW 0

0 0

0 2

0 0

0 2

SW 0

0 0

1 0

0 0

0 1

WSW 0

0 0

3 0

0 0

0 3

W 0

0 0

1 1

1 0

0 0

0 3

WNW 0

0 0

0 1

1 2

0 0

0 4

NW 0

0 0

1 2

0 3

1 0

0 0

0 7

NNW 0

0 1

1 0

0 0

0 3

TOTALS 0

0 8

34 37 33 10 1

0 0

123 NUMBER OF VALID HOURS NUMBER OF INVALID HOURS 123 0

NUMBER OF CALMS TOTAL HOURS FOR THE PERIOD 0

123 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 METEOROLOGY July - September TABLE 4A SITE: SAN ONOFRE PERIOD OF RECORD 12070100-12093023 WIND SPEED (M/S) AT 10 METER LEVEL PASQUILL G EXTREMELY STABLE (DT/DZ > 4.0 0C/100 METERS)

Wind Dir N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW 0.22 0.5 0

0 0

0 0.51 0.75 0

0 0

0 0.76 1

0 0

0 00 1.1 1.5 0

0 3

1 0

01 1

0 1

1 1

0 1.6 2

0 3

2 0

1 0

0 0

0 2

01 0

0 2.1 3

6 22 1

1 0

0 1

0 10 20 1

23 2

3.1 5

8 12 1

1 0

0 0

1 01 0

0 0

3 5

4 5.1 7

0 0

7.1 10 0

0 0

0 10.1 13.1 13 18 0

0 0

0

> 18 TOTAL 0

0 0

0 14 37 7

31 0

3 2

2 3

3 2

2 8

9 6

TOTALS 0

0 3

11 10 42 36 0

0 0

102 NUMBER OF VALID HOURS 102 NUMBER OF CALMS 0

NUMBER OF INVALID HOURS 0

TOTAL HOURS FOR THE PERIOD 102 ALL STABILITY CLASSES, ALL DT/DZ WIND SPEED (M/S) AT 10 METER LEVEL Wind 0.22 0.51 0.76 1.1 1.6 2.1 3.1 5.1 7.1 10.1 13.1

>18 TOTAL Dir 0.5 0.75 1

1.5 2

3 5

7 10 13 18 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW TOTALS 0

0 0

1 0

0 0

0 00 1

0 1

0 0

1 00 0

3 4

2 114 5

19 12 36 6

23 7

10 2

9 4

11 2

11 3

19 3

23 6

19 5

22 3

26 2

33 9

25 3

21 8

23 80 330 23 28 46 63 9

2 6

5 17 4

11 6

22 58 24 49 35 55 31 51 24 59 49 86 33 130 20 60 24 30 13 9

387 695 9

0 18 0

2 0

1 0

0 0

2 0

58 9

74 9

65 5

57 3

29 1

52 2

159 0

101 4

35 2

4 0

666 35 0

0 0

0 84 0

176 0

42 0

29 0

32 0

34 0

161 0

178 0

186 0

168 0

143 0

222 0

358 0

220 0

117 0

58 0

2208 NUMBER OF VALID HOURS NUMBER OF INVALID HOURS 2208 0

NUMBER OF CALMS TOTAL HOURS FOR THE PERIOD 0

2208 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 METEOROLOGY October - December TABLE 4A SITE: SAN ONOFRE PERIOD OF RECORD 12100100-12123123 WIND SPEED (MIS) AT 10 METER LEVEL PASQU ILL A EXTREMELY UNSTABLE (DTIDZ:5 - 1.9 0C/1 00 METERS)

Wind Dir N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW 0.22 0.5 0

0 0

0 0.51 0.75 0

0 0

0 0.76 1

0 0

1 0

0 00 0

1.1 1.5 0

0 1

0 0

0 00 1

6 4

01 1

0 0

1.6 2

0 0

0 1

5 12 11 13 10 2

0 0

2.1 3

0 0

0 3

12 19 31 36 65 17 1

0 3.1 5

0 0

0 10 12 9

13 18 63 53 3

0 5.1 7

0 0

0 2

0 0

2 1

4 17 0

0 7.1 10 0

0 0

01 1

0 0

10.1 13 0

0 0

0 13.1 18 0

0 0

0

> 18 TOTAL 0

0 0

0 1

0 0

00 16 30 46 62 68 144 91 4

0 TOTALS 0

0 1

14 54 184 181 26 2

0 0

0 462 NUMBER OF VALID HOURS 462 NUMBER OF CALMS 0

NUMBER OF INVALID HOURS 0

TOTAL HOURS FOR THE PERIOD 462 PASQUILL B MODERATELY UNSTABLE (-1.9 < DT/DZ

- 1.7 °C/100 METERS)

Wind 0.22 0.51 0.76 1.1 1.6 2.1 3.1 5.1 7.1 10.1 13.1

>18 TOTAL Dir 0.5 0.75 1

1.5 2

3 5

7 10 13 18 N

0 0

1 0

0 0

1 NNE 0

0 0

NE 0

0 0

ENE 0

0 0

0 1

0 0

0 1

E 0

0 0

ESE 0

0 0

1 0

0 0

0 1

SE 0

0 0

0 1

0 0

0 1

SSE 0

0 0

1 2

3 3

0 0

0 9

S 0

0 0

3 1

2 2

0 0

0 8

SSW 0

0 0

0 1

1 0

0 0

0 2

SW 0

0 0

2 2

1 1

0 0

0 6

WSW 0

0 0

1 0

0 0

0 1

W 0

0 0

0 3

3 2

0 0

0 8

WNW 0

0 0

0 1

1 4

1 0

0 0

0 7

NW 0

0 0

1 1

0 0

0 2

NNW 0

0 0

TOTALS 0

0 0

7 12 13 14 1

0 0

47 NUMBER OF VALID HOURS NUMBER OF INVALID HOURS 47 0

NUMBER OF CALMS TOTAL HOURS FOR THE PERIOD 0

47 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 METEOROLOGY October - December TABLE 4A SITE: SAN ONOFRE PERIOD OF RECORD 12100100-12123123 WIND SPEED (M/S) AT 10 METER LEVEL PASQUILL C SLIGHTLY UNSTABLE (- 1.7 < DT/DZ < - 1.5 0C/1 00 METERS)

Wind Dir N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW 0.22 0.5 0

0 0

0 0.51 0.75 0

0 0

0 0.76 1

0 0

1 0

0 00 0

1.1 1.5 0

0 0

2 0

0 0

0 10 1.6 2

1 0

0 0

1 0

00 0

2 2

0 2.1 3

0 0

0 11 0

2 7

2 3

3 0

3.1 5

0 0

2 6

0 0

0 3

2 3

6 0

5.1 7

0 0

01 1

2 0

3 0

0 7.1 10 0

0 0

0 10.1 13 0

0 0

0 13.1 18 0

0 0

0

>18 TOTAL 0

0 0

0 1

0 0

0 00 2

7 2

3 4

12 4

11 12 0

TOTALS 0

0 1

3 6

19 22 7

0 0

58 NUMBER OF VALID HOURS 58 NUMBER OF CALMS 0

NUMBER OF INVALID HOURS 0

TOTAL HOURS FOR THE PERIOD 58 PASQUILL D NEUTRAL ( - 1.5 < DT/DZ < - 0.5 0C/1 00 METERS)

Wind 0.22 0.51 0.76 1.1 1.6 2.1 3.1 5.1 7.1 10.1 13.1

>18 TOTAL Dir 0.5 0.75 1

1.5 2

3 5

7 10 13 18 N

0 0

0 10 5

3 0

1 0

0 0

0 19 NNE 0

0 3

4 8

9 4

1 0

0 0

0 29 NE 0

0 1

1 0

0 0

0 3

ENE 0

0 1

2 2

0 0

0 6

E 0

0 0

0 5

3 5

0 0

0 13 ESE 0

1 1

2 5

16 12 0

1 0

0 0

38 SE 0

0 0

4 8

24 54 15 1

0 0

0 106 SSE 0

0 0

2 9

19 18 4

1 0

0 0

53 S

0 0

3 2

5 9

5 0

0 0

24 SSW 0

0 1

7 3

0 3

3 3

0 0

0 20 SW 0

0 1

0 4

4 11 3

1 0

0 0

24 WSW 0

1 1

4 4

0 0

0 18 W

0 0

1 7

4 12 6

5 1

0 0

0 36 WNW 0

1 2

7 7

6 6

10 1

0 0

0 40 NW 0

0 1

7 7

10 14 4

1 0

0 0

44 NNW 0

0 2

9 1

11 5

0 0

0 28 TOTALS 0

3 18 65 77 133 149 46 10 0

0 0

501 NUMBER OF VALID HOURS NUMBER OF INVALID HOURS 501 0

NUMBER OF CALMS TOTAL HOURS FOR THE PERIOD 0

501 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 METEOROLOGY October - December TABLE 4A SITE: SAN ONOFRE PERIOD OF RECORD 12100100-12123123 WIND SPEED (M/S) AT 10 METER LEVEL PASQUILL E SLIGHTLY STABLE (- 0.5 < DT/DZ < 1.5 °C/1 00 METERS)

Wind Dir N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW 0.22 0.5 0

0 0

0 0.51 0.75 0

0 0

0 1

0 0

00 1

1 1

0.761 3

4 2

2 0

0 0

0 2

2 1.1 1.5 15 17 5

4 5

61 6

1 2

3 2

2 2

4 10 1.6 2

16 22 5

2 2

7 41 1

0 1

3 5

1 3

5 2.1 3

16 40 6

8 4

8 11 9

0 2

1 2

1 7

4 8

3.1 5

10 12 2

2 3

111 5

1 2

1 01 6

5 6

5.1 7

0 0

5 1

0 0

0 2

3 1

7.1 10 0

0 0

0 10.1 13 0

0 0

0 13.1 18 0

0 0

0

>18 TOTAL 0

0 0

0 60 95 20 18 14 22 32 22 4

6 6

8 10 19 22 33 TOTALS 0

4 17 85 78 127 68 12 0

0 0

0 391 NUMBER OF VALID HOURS 391 NUMBER OF CALMS 0

NUMBER OF INVALID HOURS 0

TOTAL HOURS FOR THE PERIOD 391 PASQUILL F MODERATELY STABLE (1.5 < DT/DZ < 4.0 °C/100 METERS)

Wind 0.22 0.51 0.76 1.1 1.6 2.1 3.1 5.1 7.1 10.1 13.1

>18 TOTAL Dir 0.5 0.75 1

1.5 2

3 5

7 10 13 18 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW TOTALS 0

0 0

0 2

2 6

11 3

0 0

2 20 52 96 21 0

0 0

16 4

4 0

0 1

0 0

1 2

4 3

1 0

0 0

1 2

1 1

0 0

2 1

1 0

0 0

1 1

0 0

0 2

1 0

0 0

0 2

1 0

0 0

0 2

0 0

1 0

0 0

0 2

0 1

0 0

0 1

1 3

3 0

0 0

1 1

0 4

1 0

0 0

2 1

3 0

0 0

1 1

3 5

0 0

0 8

50 82 133 31 0

1 0

0 0

24 0

191 0

25 0

11 0

5 0

4 0

2 0

3 0

0 0

8 0

7 0

6 0

10 0

305 NUMBER OF VALID HOURS NUMBER OF INVALID HOURS 305 0

NUMBER OF CALMS TOTAL HOURS FOR THE PERIOD 0

305 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT - 2012 METEOROLOGY October - December TABLE 4A SITE: SAN ONOFRE PERIOD OF RECORD 12100100-12123123 WIND SPEED (M/S) AT 10 METER LEVEL PASQUILL G EXTREMELY STABLE (DT/DZ > 4.0 0C/100 METERS)

Wind Dir N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW 0.22 0.5 0

0 0

0 0.51 0.75 0

0 0

0 0.76 1

0 0

1 0

0 0

00 0

0 1.1 1.5 0

3 4

1 4

2 1

0 1

0 00 1"

1 0

1 1.6 2

1 13 4

0 1

11 1

0 0

00 0

1 1

0 2.1 3

10 174 7

7 2

1 0

1 1

1 2

2 1

1 1

1 3.1 5

16 149 2

0 0

3 1

0 2

0 0

2 0

3 3

3 5.1 7

0 2

0 0

0 1

0 0

7.1 10 0

0 0

0 10.1 13 0

0 0

0 13.1 18 0

0 0

0

> 18 TOTAL 0

0 0

0 27 341 18 8

8 7

3 2

41 2

5 2

6 5

5 TOTALS 0

0 2

19 24 212 184 3

0 0

444 NUMBER OF VALID HOURS 444 NUMBER OF CALMS 0

NUMBER OF INVALID HOURS 0

TOTAL HOURS FOR THE PERIOD 444 ALL STABILITY CLASSES, ALL DT/DZ WIND SPEED (M/S) AT 10 METER LEVEL Wind 0.22 0.51 0.76 1.1 1.6 2.1 3.1 5.1 7.1 10.1 13.1

>18 TOTAL Dir 0.5 0.75 1

1.5 2

3 5

7 10 13 18 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW TOTALS 0

0 0

0 1

0 0

1 00 1

0 2

7 5

9 4

4 0

0 3

1 3

2 3

3 3

5 47 27 30 44 95 26 14 7

8 10 10 11 15 6

13 11 15 8

15 19 16 9

20 6

20 12 25 12 14 14 14 21 9

243 333 40 29 319 186 18 4

20 5

10 9

26 17 36 70 36 42 26 22 23 15 41 27 52 27 87 74 39 76 23 32 25 14 821 649 1

3 0

0 0

0 20 7

0 4

6 4

9 33 7

1 95 0

0 1

0 01 1

1 0

3 1

0 2

2 1

0 13 0

0 0

132 0

656 0

67 0

44 0

40 0

72 0

146 0

112 0

75 0

81 0

107 0

112 0

212 0

181 0

95 0

76 0

2208 NUMBER OF VALID HOURS NUMBER OF INVALID HOURS 2208 0

NUMBER OF CALMS TOTAL HOURS FOR THE PERIOD 0

2208

ML13142A425

Text

Subject:

Dear Sir or Madam:

Enclosures:

SUMMARY

SUMMARY

REFERENCES:

Navigation menu

Search