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Third Quarter 2008 Report on Discharge Monitoring at Diablo Canyon Power Plant
	ML12082A077
Person / Time
Site:	Diablo Canyon
Issue date:	10/16/2008
From:	Becker J R; Pacific Gas & Electric Co
To:	; State of CA, Regional Water Quality Control Bd, NRC Region 4
References
	DCL-08-549
	Download: ML12082A077 (103)
	v • d • e

Pacific Gas and Electric Companyo Diablo Canyon Power Plant P. 0. Box 56 Avila Beach, CA 93424 Date: October 16, 2008 PG&E Letter DCL-2008-549 Electronic Submission PDF Formatted File California Regional Water Quality Control Board Central Coast Region Attn: Monitoring and Reporting Review Section 895 Aerovista, Suite #101 San Luis Obispo, CA 93401-7906

Dear Mr. Briggs:

In accordance with Order 90-09, NPDES No. CA0003751, enclosed is the Third Quarter 2008 Report on Discharge Monitoring at Diablo Canyon Power Plant (Enclosure 1).Facility Name: Address: Contact Person: Job Title: Phone Number: Pacific. Gas & Electric Company Diablo Canyon Power Plant P.O. Box 56 Avila Beach, CA 93424 Bryan Cunningham Supervisor, Environmental Operations 545-4439 Order No. 90-09, NPDES No. CA0003751 WDRINPDES Order Number: Type of Report: (check one)Quarter: (check one): QUARTERLY ANNUAL 0 I St El.1-3 rd 4 th Year: 2008 (Annual Reports for DCPP are Jan-Dec)Violation(s) (Place an X by the appropriate choice):[] No (there are no violations to report)El Yes PG&E Ltr DCL-2008-549 Mr. Briggs, CRWQCB October 16, 2008 Page 2 If Yes is marked (complete a-g): a) Parameter(s) in Violation:

b) Section(s) of WDR/NPDES Violated: c) Reported Value(s)d) WDRINPDES Limit/Condition:

e) Dates of Violation(s)(reference page of report/data sheet): f) Explanation of Cause(s): (attach additional information as needed)g) Corrective Action(s): (attach additional information as needed)(If "YES", see overview section of attached report)(If "YES", see overview section of attached report)

PG&E Ltr DCL-2008-549 Mr. Briggs, CRWQCB October 16, 2008 Page 3 I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted.

Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete.

The results of the influent and effluent monitoring presented are the observed results of the measurements and analyses required by the monitoring program, and is neither an assertion of the adequacy of any instrument reading or analytical result, nor an endorsement of the appropriateness of any analytical or measurement procedure.

I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.

If you have any questions or concerns regarding the report provided, or require additional information, please contact Bryan Cunningham at (805) 545-4439.Sincerely, Name: JamesNR ecker Title: Site Vice President and Station Director 2008549/jlklbkc PG&E Ltr DCL-2008-549 Mr. Briggs, CRWQCB October 16, 2008 Page 4 cc: w/enclosure PDF Formatted Electronic File Copy: Regional Administrator U.S. Nuclear Regulatory Commission Region IV 612 E. Lamar Blvd., Suite 400 Arlington, TX 76011-4125 Director, Division of Reactor Projects U. S. Nuclear Regulatory Commission Region IV 612 E. Lamar Blvd., Suite 400 Arlington, TX 76011-4125 U.S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555-0001 California Department of Fish and Game 20 Lower Ragsdale, Suite 100 Monterey, CA 93490 Hardcopy Format: Resident Inspector, Michael S. Peck U.S. Nuclear Regulatory Commission Diablo Canyon Power Plant 104/5 PG&E Letter DCL-2008-549 ENCLOSURE 1 THIRD QUARTER 2008 REPORT ON DISCHARGE MONITORING AT DIABLO CANYON POWER PLANT PACIFIC GAS AND ELECTRIC COMPANY Third Quarter 2008 REPORT ON DISCHARGE MONITORING AT DIABLO CANYON POWER PLANT TABLE OF CONTENTS page O V E R V IE W ................................................................................

1

SUMMARY

OF MONITORING PROGRAM A. Monitorinq of Plant Influent and Effluent ........................

2 B. Monitoring of Receiving W aters .....................................

3 C. Sodium BromideTreatment Program ...........................

3 APPENDIX 1: NPDES Discharge Points APPENDIX 2: Influent and Effluent Monitoring

-July 2008 APPENDIX 3: Influent and Effluent Monitoring

-August 2008 APPENDIX 4: Influent and Effluent Monitoring

-September 2008 APPENDIX 5: Acute Bioassay:

July 23-27, 2008 APPENDIX 6: Chronic Bioassay:

July 24-26, 2008 PACIFIC GAS AND ELECTRIC COMPANY NUCLEAR POWER GENERATION Third Quarter 2008 REPORT ON DISCHARGE MONITORING AT DIABLO CANYQN POWER PLANT (NPDES No. CA0003751)

OVERVIEW 1. During the third quarter of 2008, discharges occurred from Discharge Paths 001 (once through cooling water), 0011B, 001D, 001E, 001F, 001G. 001H, 001J, 001L, 001N, 001P, 002, 003, 004, and 005. No discharges occurred from Discharge Paths 0011, 001K, 001M, 006 through 017. A list of all of the permit discharge pathways, including name and number, is provided in Appendix 1.2. The substances listed in Table B of the,1990 California Ocean Plan were each analyzed for and reported in the permit renewal application for Diablo Canyon submitted in 1994.There have been no changes in the activities conducted at the plant that would have significantly affected the results previously reported in the 1994 renewal application.

California Ocean Plan Table B substances that were not analyzed for this quarter were not added to the discharge stream.3. During the third quarter of 2008, maintenance activities that required draining of closed cooling water systems were performed and are summarized below. PG&E received concurrence from the CCRWQCB in response to letters dated July 19, 1995 (PG&E Letter DCL-95-156), May 23, 1996 (PG&E Letter DCL-96-522), and May 19, 1997 (PG&E Letter DCL-97-533) regarding the use of glutaraldehyde and isothiazolin to control microbiological growth and corrosion in DCPP's closed cooling water systems.Discharges are drained at a flow rate such that the chronic toxicity level would be below the "No Observable Effect Concentration" (NOEC) at NPDES Discharge 001.Total Ol&Ges Volume Glutaraldehyde Isothiazolin Total Oil& Grease Date System (gallons) (mg/I) (mg/I as CU') Suspended (mgll)________ _________

__________

___________

Solids (mg/I) (gI 07/03/08 Unit 2 ICW 3,304 153 2.1 ......07/09/08 Unit 2 SCW 33,000 57 4.1 < 0.2 < 1.4 07/19/08 Unit 2 CCW 192,500 157 0.0 < 0.2 < 1.4 08/25/08 Unit 1 SoW 15 0.75 --- '80 09/03/08 Unit 1 SCW 15 185 12.4 4. A single instrumentation related event affected continuous chlorine monitoring at Discharge 001 during the third quarter. An engineering evaluation was subsequently completed as authorized by the Regional Board in accordance with PG&E's January 5, 1994 letter. The event interval, affected monitor, number of affected results, the cause(s), and corrective action(s) have been tabulated below. The engineering evaluation was based on recorded chemical injection rates and condenser waterbox inlet chlorine monitoring results. These factors were used to calculate estimates of actual chlorine concentration at Discharge 001 during the event interval.

The estimates were used to replace results recorded directly by the affected monitor. Results from the engineering evaluation were all in the range of 10-15 pg/L; at least 60 pIg/L below the applicable 89-1ig/L discharge limit.Interval Affected Affected Cause Corrective Actions Monitor Readings 7/10/08 to Unit 1 37 Fouling of monitor's Flow block replace and frequency of 7/16/08 upper flow block, block inspection/replacement increased." L'," ': " : .'.. "

5. Shortly after midnight on August 17, 2008, one of three operating Unit 2 main bank electrical transformers failed catastrophically causing a fire. The fire was put out by DCPP emergency responders using water and a protein-based biodegradable, water-soluble, firefighting foam. Petroleum based electrical insulation oil released from the transformer during the event (estimated at < 100-gallons) was contained within adjacent paved areas, and a large volume oil containment and separation sump installed in the transformer area drainage path. High volumes of deluge water and soluble fire fighting foam additive entered the oil separation sump during the event. Water discharged from the sump flowed to the catch basin of discharge point 004. Foam was subsequently observed in the 004 discharge and in the adjacent power plant intake cove. No obvious petroleum oil sheen was observed at any location.

Three oil (hydrophobic liquids)absorbent booms were deployed, one at the entry to the 004 pathway catch basin, and two at the 004 discharge outlet, to capture any residual oil if transported by water/foam originating from the transformer area. There was a mild kerosene type smell in the foam at the inlet of the drainage catch basin (prior to catch basin outfall to the 004 discharge), but no petroleum type sheen was observed within the catch basin. However, some soot-like material was also observed at this same location.

Other than the foam, the observation of soot-like material a ndthe mild odor were the only notable concerns.Residual fire fighting foam dissipated rapidly once the sun came up, and no oil sheen was observed in the intake cove after all foam was gone.Regional Board Staff (von Langen) were notified of the event by phone message early Sunday morning the 1 7 th after observations of the catch basin, intake cove, and boom installation.

The deployed booms were subsequently examined on Monday August 1 8 th, and no petroleum oil was observed in the absorbent material.

Additionally, no oil sheen was observed within the drainage catch basin on the 1 8 th, or at any location in the intake cove. Follow-up investigation and inspections concluded that during the initial transformer event and subsequent emergency response, the Unit 2 main bank transformer area oil containment and separation sump performed within design function to capture oil and pass water and entrained water soluble materials.

SUMMARY

OF MONITORING PROGRAM A. Monitoring of Plant Influent and Effluent 1. The results of the July, August, and September 2008 plant influent and effluent monitoring are reported on Discharge Self Monitoring Report (DSMR) forms in Appendices 2, 3, and 4, respectively.

2. The laboratory report for one acute bioassay on water sampled from Discharge 001, performed July 23-27, 2008, is included in Appendix 5. The acute test results indicated no acute toxicity (TUa=0.0).

3. The laboratory report for one chronic bioassay on water sampled from Discharge 001, performed July 24-26, 2008, is included in Appendix 6. The bioassay results show that chronic toxicity was 1.0 TUc (no chronic toxicity).

B. Monitorinq of Receivinq Waters 1. Ecological Studies at Diablo Canyon Ecological studies in the vicinity of Diablo Cove conducted during the third quarter continued under the Diablo Canyon Receiving Water Monitoring Program (RWMP)as requested in a letter from the Central Coast Regional Water Quality Control Board (CCRWQCB) dated December 9, 1998, and as detailed in a letter (PG&E Letter DCL-99-503) dated Ja.uary 8;..-99. This program includes tasks from the Ecological Monitoring Program (EMP)"IiI)'additional stations and increased sampling frequencies.

The RWMP repl'acds the EMP and the Thermal Effects Monitoring Program (TEMP).2. In Situ Bioassay Results of the Mussel Watch Program will be reported to the CCRWQCB directly from the California Department of Fish and Game in the Department's periodic report for this program.C. Sodium Bromide Treatment Program Diablo Canyon Power Plant is continuing the use of generic sodium bromide to control macrofouling growth for both Units. Both circulating water conduits of each Unit can be chemically treated simultaneously.

Each treated conduit typically receives a twenty-minute injection every four hours (six injections a day) of sodium bromide (NaBr) in combination with sodium hypochlorite (NaOCI). Each injection attempts to achieve a target concentration of 200 parts per billion (ppb) Total Residual Oxidant (TRO) when measured at the inlet waterbox of the condenser.

Discharge TRO, measured at the plant outfall, remained below NPDES limitations throughout the quarter.Both conduits of Unit-1 were treat~d;with simultaneous injections of sodium bromide and sodium hypochlorite six times a ddatihr lroq ght the third quarter of 2008 with brief interruptions in July and August for maintenan6e activities.

Both conduits of Unit-2 were treated with simultaneous injections of sodium bromide and sodium hypochlorite six times a day throughout the third quarter of 2008 with a brief interruption in August due to the transformer fire described in the Overview Section-5.

APPENDIX 1 DIABLO CANYON POWER PLANT NPDES DISCHARGE POINTS DISCHARGE NUMBER DESCRIPTION 001 Once-Though Cooling Water 001 A Firewater Systems 001 B Auxiliary Salt Water Cooling System 001 C Discharge Deleted 001 D Liquid Radioactive Waste Treatment System 001 E Service Cooling Water System 001 F Turbine Building Sump 001 G Make-Up Water System Waste Effluent 001 H Condensate Demineralizer

_________________________Regenerant 001 I Seawater Evaporator Blowdown 001 J Condensate Pumps Discharge Header Overboard 001 K Condenser Tube Sheet Leak Detection Dump Tank Overboard 001 L Steam Generator Blowdown 001 M Wastewater Holding and Treatment System 001 N Sanitary Wastewater Treatment System 001 P Seawater Reverse Osmosis System Blowdown 002 Intake Structure Building Floor Drains 003 Intake Screen Wash 004 Bio Lab and Storm Water Runoff 005, 008, 009, 013, 014, 015 Yard Storm Drains 006, 007, 010, 011, 012 Storm Water Runoff 016 ..Bio Lab Seawater Supply Pump.... ... ... ..._ _Valve Drain 017 Seawater Reverse Osmosis System I Blowdown Drain APPENDIX 2 DIABLO CANYON POWER PLANT Influent and Effluent Monitoring July 2008 CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SE IF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 1 FACILITY I.D. YEAR I MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #3402003001 BEGINNI 4G 08 I07 I 01 ENDI G 08 / 07 1 31 06 CA0003751 STATION INFLUENT EFFLUENT 001 DELTATEMP EFFLUENT 001 INFLUENT EFFLUENT001 EFFLUENT 001P EFFLUENT002 ANALYSIS TEMPERATURE TEMPERATURE TEMPERATURE FLOW pH PH pH pH UNITS DEGREES F DEGREES F DEGREES F MGD pH UNITS pH UNITS pH UNITS pH UNITS SMPL TYPE METERED METERED METERED RECORDED GRAB GRAB GRAB GRAB FREO. CONTINUOUS CONTINUOUS CONTINUOUS DALY MONTHLY MONTHLY I'" MONTHLY MONTHLY 1 52.1 70.2 18.1 2486 2 52.0 70.5 18.5 2486 3 51.6 70.4 18.8 2486 4 51.5 70.4 18.9 2486 5 51.6 70.4 18.8 2486 6 52.4 71.1. 18.7 2486 7 53.2 72.0 18.8 2486 8 54.5 73.3 18.8 .: 2486 9 53.3 71.7 18.4 2486 10 55.1 74.0 18.9 2486 11 55.7 74.6 18.9 2486 12 565 75.4 18.9 2486 13 56.7 75.4 18.7 2486 14 55.4 74.2 18.8 2486 15 54.0 72.9 18.9 2486 16 53.0 71.8 18.8 2486 17 52.9 71.7 18.8 2486 18 52.4 71.1 18.7 2486 2 7.7 2 7.8 19 53.3 72.0 18.7 2486 20 54.1 72.7 18.6 2486 21 53.3 72.0 18.7 2486 7.9 7.9 22 52.6 71.4 18.8 2486 23 53.8 72.4 18.6 2486 24 54.4 73.1 18.7 2486 25 54.3 72.9 18.6 2486 26 55.7 74.4 18.7 2486 27 56.3 74.9 18.6 2486 28 56.0 74.9 18.9 2486 29 56.4 75.2 18.8 2486 30 55.8 74.7 18.9 2486 31 56.0 74.8 18.8 2486 MONTHLY AVG 54.1 72.8 18.7 2486 7.9 7.9 7.7 7.8 MONTHLY HIGH 56.7 75.4 18.9 2486 7.9 7.9 7.7 7.8 MONTHLYLOW 51.5 70.2 18.1 2486 7.9 7.9 7.7 7.8 TIMES EXCEEDED NO LIMIT NO LIMIT MAX 22 = 0 MAX 2760 = 0 NO LIMIT NO LIMIT NO LIMIT NO LIMIT TIMES EXCEEDED (*)TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY."EXCEPT DURING DEMUSSELING, DAILY WHEN DISCHARGING CHEMICAL CLEANING WASTES FROM DISCHARGES 001D, F, I, L, AND/OR M.

CALIFORNIA REGIONAL WATER OUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 2 FACILITY ID. YEAR/MOIDAY YEAR/ MO / DAY STATE CODE NPDES PERMIT #3 402003001 BEGINNI4G 08 / 07/ 01 ENDI4G 08 07 31 06 CA000371 STATION EFFLUENT 003 EFFLUENT 004 EFFLUENT 001N EFFLUENT 001P EFFLUENT 003 EFFLUENT O0lF EFFLUENT 001 EFFLUENT 001 ANALYSIS pH pH OIL & GREASE OIL i GREASE O(L & GREASE OIL & GREASE T CHLOR RES CHLORINE USED UNITS pH UNITS pH UNITS mgA nrgY mgC ug94 btsday SMPL TYPE GRAB GRAB COMPOSITE GRAB GRAB GRAB GRAB() RECORDED FRED. MONTHLY MONTHLY WEEKLY WEEKLY I") WEEKLY .') MONTHLY 2 per CYCLE MONTHLY 1 ND(5) 16 576 2 30 526 3 43 576 4 40 576 5 39 576 6 30 576 7 25 583 8 19 610 9 ND(5) 17 662 10 17 691 11 14 706 12 13 706 13 13 706 14 ND(5) 13 706 15 15 706 16 ND(5) 23 703 17 26 691 18 7.8 7.8 30 691 19 25 691 20 23 691 21 , .25 691 22 ... 27 691 23 ND(S) 33 691 24 21 670 25 19 648 26 14 648 27 10 648 28 12 648 29 < 10 648 30 13 643 31 14 634 MONTHLY AVG 7.8 7.8 ND(5) NO NO ND(5) 21 652 MONTHLY HIGH 7.8 7.8 ND(5) DISCHARGE DISCHARGE ND(5) 43 706 MONTHLY LOW 7.8 7.8 ND(5) ND(5) 10 526 TIMES EXCEEDED NO LIMIT NO LIMIT MOAVG 15 0 MOAVG 15=0 MOAVG 15=0 MOAVG 15 0 IMAX200=0 NO LIMIT TIMES EXCEEDED DMAX20=0 DMAX20=0 DMAX20=0 DMAX20=0 TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.WHEN 001N IS DISCHARGING TO 001P.WHEN 001P IS DISCHARGING TO 003.CONTINUOUS CHLORINE MONITORING USED I I,1 CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 3 FACILITY I.D. YEAR I MO/ DAY YEAR/ MO / DAY STATE CODE NPDES PERMIT #3402003001 BEGINNI iG M I 07 1 01 ENDING 08 / 07 1 31 06 CA0003751 STATION EFF 001N=003 EFF 00IN=>003 EFFLUENT 0010 EFFLUENT DOIF ANALYSIS TOTL COLIFORM FECAL COLIFORM SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS MPN/1oOml MPN/IO0ml mgn/ IsI FLTR mg/i 2nd FLTR mg/I NET mrg/ 1st FLTR mg/I 2nd FLTR mg/I NET SMPL TYPE GRAB GRAB GRAB GRAB FREO 4 TIMES/WEEK 4 TIMESIWEEK MONTHLY MONTHLY 1 2 3 2 ND(5)2 3 4 5 6 7 8 2 3 2 ND(5)9 10 2 7 2 < .2 2 7 11 12 13 14 2 18 2 < 2 2 18 15 16 17 4 ND(5)18 19 20 21 22 23 2 18 2 < 2 2 17 24 25 26 27 28 29 30 31 MONTHLYAVG NO NO 5 18 MONTHLYHIGH DISCHARGE DISCHARGE 18 18 MONTHLY LOW ND(5) 18 TIMES EXCEEDED 80% SMPLS>IK MEAN>200=

NO LIMIT NO LIMIT, MO AVG 30 = 0 NO LIMIT NO LIMIT MOAVG30=0 TIMES EXCEEDED 90 % SMPLS>400 D MAX 100 = 0 D MAX 100 = 0 TIMES EXCEEDED I MAX >1OK REMARKS:

NUMBER OF SAMPLES TAKEN DURINGTHE DAY.FLOW-WEIGHTE D AVERAGES REPORTED.

CALIFORMA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRICCO.

3ONTROL BOARD DIABLO CANIYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424[AN LUIS OBISPO. CA 93401 PAGE: (M) 4 FACILITY I.D. YEAR/MO/DAY YEARIMO/DAY STATECODE NPDES PERMIT #3402003001 BEGINNING D I 07 1 01 ENDIIG 08 I 07 / 31 06 CA0003751 STATION EFFLUENT 0OIG iFFLUENT 001H ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS rnoj1 IsI FLTR mogt 2nd FLTR rag/ NET mg/' Ist FLTR mol 2rld FLTR mgol NET SMPL TYPE GRAB GRAB FRED. MONTHLY MONTHLY 2 3 2 < 2 2 < 2 2 ND(5)4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 2 ND(5)19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG ND(5) ND(5)MONTHLY HIGH ND(5) ND(5)MONTHLY LOW ND(5) ND(5)TIMES EXCEEDED NO LIMIT NO LIMIT MO AVG 30=-0 NO LIMIT NO LIMIT MO AVG 30=-0 TIMES EXCEEDED D MAX 100 = 0 D MAX 100 = 0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.Z; =/o I;CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIRC GAS ANDELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SANLUIS OBISPO. CA 93401 PAGE- (M) s FACILITY I.D. YEAR / MO / DAY YEAR/I MO I DAY STATE CODE NPDES PERMIT #3 402003001 BEGINNING 08 / 07 / 01 ENDI 4G 08 / 07 / 31 06 CA0003751 STATION EFFLUENT 0011 EFFLUENT 001J ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS Wg/1 1st FLTR mgWI 2nd FLTR mg/I NET mg/I 1st FLTR m/I 2nd FLTR mg/I NET SMPL TYPE GRAB GRAB FRED. MONTHLY MONTHLY 2 3 4 5 6 7 8 9 10 11 12 13 14 Is 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG NO NO MONTHLY HIGH DISCHARGE DISCHARGE MONTHLY LOW " TIMES EXCEEDED NO LIMIT NO LIMIT MO AVG 30 = 0 NO LIMIT NO LIMIT MO AVG 30= 0 TIMES EXCEEDED MAX 100 = 0 MAX 100 = 0 REIMES EXCEEDED REMARKS: 'NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M) 6 FACILITY I.D. YEAR / MO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT #3402003001 BEGINNING 08 /07 /01 ENDING 08 / 07 I 31 06 CA0003751 STATION EFFLUENT 001K EFFLUENT 001L ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UN1TS mg/W IstFLTR mg/l2ndFLTR mg/ NET mg/1i.sIFLTR

-mg/I 2ndFLTR mg/I NET SMPL TYPE GRAB GRAB FREG. MONTHLY MONTHLY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 2 < 2 2 ND(5)15 16 17 18 19 20 21 22 23 .24 25 26 27 28 29 30 31 MONTHLY AVG NO ND(5)MONTHLY HIGH DISCHARGE ND(5)MONTHLY LOW ND(5)TIMES EXCEEDED NO LIMIT NO UMIT MO AG 30 = 0 NO UMIT NO LIMIT MO A\G 30 = 0 TIMES EXCEEDED D MAX 100 = 0 D MAX 100 = 0 IMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M) 7 FACILITY ID, YEAR I MO / DAY YEAR I MO/DAY STATE CODE NPDES PERMIT #3402003001 BEGINNING 08 107 / 01 END T3 08 I 07 / 31 06 CA0003 I1 STATION EFFLUENT ODiM EFFLUENT 0OIN EFFLUENT 001P ANALYSIS SUSPENDED SOLIDS SUSPENDED SLDS SUSPENDED SOLIDS UNITS mg/i ist FLTR mgoI 2nd FLTR mgI NET mg/1 mg 1 Ist FLTR mg/il 2nd FLTR mg/I NET SMPL TYPE GRAB COMPOSITE GRAB FREO. MONTHLY WEEKLY MONTHLY 1 7 2 3 4 5 6 7 8 9 22 10 11 12 13 14 15 16 23 17 18 7 2 19 20 21 22 23 13 24 25 26 27 28 29 30 31 MONTHLY AVG NO 16 6 MONTHLY HIGH DISCHARGE 23 6 6 MONTHLY LOW 7 6 TIMES EXCEEDED NO UMIT NO UMIT MO A\4 30 = 0 MO AVG 60 =0 NO UMIT NO UMIT MO AVG 30 = 0 TIMES EXCEEDED D MAX 100 = 0 D MAX 100 = 0 IMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAAUFORNIA REGIONALWATER QUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M) 8 FACIUTY I.D. YEAR / MO/DAY YEAR t MO/DAY STATE CODE NPDES PERMIT #3402003001 BEGINNING 08 / 07 I01 ENDING 08 / 07 I 31 06 CA0003751 STATION EFFLUENT 002 *., .EFFLUENT 003 ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mg/l Isl FLTR mgni 2nd FLTR mg/t NET mgil lst FLTR mgol 2nd FLTR rmoyl NET SMPL TYPE GRAB GRAB FRED. MONTHLY MONTHLY 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 2 c 2 2 2 2 ND(S) 2 4 2 < 2 2 ND(5)19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG ND(S) ND(S)MONTHLY HIGH ND(S) ND(S)MONTHLY LOW ND(S) ND(S)TIMES EXCEEDED NO U MIT NO U MIT MO AVG 30 = 0 NO U MIT NOUMIT MOAVG 30 0 IMES EXCEEDED DMAX100 = 0 DMAX 100 0 IMES EXCEEDED REMARIS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

i.. :!..CAUFORNIA REGIONAL WATER QUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 9 FACIULY I.D. YEAR / MO / DAY YEAR/MO/DAY STATE CO DE NPDES PERMIT/#3402003001 BEGINNING 08 I 07 / 01 ENDI G 08 / 07 / 31 06 CA0003751 STATION EFFLUENT 003 EFFLUENT OO1N EFFLUENT 001 EFFLUENT 001 EFFLUENT 001 EFFLUENT 001 ANALYSIS SUSPENDED SOLIDS SETTL SOLIDS T CHROMIUM COPPER NICKEL ZINC UNITS mg/I IsIFLTR rmg/I 2nd FLTR mg/I NET ml/ u9/1 ugh/ u9/1 ug/l SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB FRED WEEKLY WHEN OOIN & 001P = 003 WEEKLY MONTHLY MONTHLY MONTHLY MONTHLY 1 ND(0.1)2 3 4 5 6 7 9 ND(0.1)10 11 12 13 14 15 16 ND(0 1)17 18 19 20 21 ND(10) ND(10) ND(10) ND(10)22 23 ND(0.1)24 25 26 27 28 29 30 31 MONTHLY AVG NO ND(O.1) ND(10) ND(10) ND(10) ND(10)MONTHLY HIGH DISCHARGE ND(0.1) ND(10) ND(10) ND(10) ND(10)MONTHLY LOW ND(0:1) ND(10) ND(10) ND(10) ND(10)TIMES EXCEEDED NO UMIT NO U MIT MO AVG 30 = 0 MO AVG 1.0 0 6M.ME D 10 =0 6M-MED10=O 6M-MED 30 =0 6M-MED 70=0 TIMES EXCEEDED DMAX 100 = 0 DMAXao = 0 DMAX40 0 DMAX50 = 0 DMAX 100 = 0 DMAX380 = 0 TIMES EXCEEDED I MAX 100 0 I MAX 140 = 0 I MAX 260 = 0 I MAX 990 = 0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIAREGIONALWATER OUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 1 FACIUTY I.D. YEAR / MO / DAY YEAR I MO I DAY STATE CODE NPDES PERMIT u 3 400D01 BEGINNING 08 / 07 1 01 ENDI G 08 / 07/ 31 06 CA0003751 STATION INFLUENT INFLUENT INFLUENT INFLUENT EFFLUENT 001 EFFLUENT 001D EFFLUENT 00IG EFFLUENT 001H ANALYSIS T CHROMIUM COPPER CK EL AMMONIA(N)

AMMONIA(N)

OIL& GREASE OIL & GREASE OIL & GREASE UNITS ug/i ug1 ugi1 ugl/ ug/ mg/l mGVi mgi SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREO. JWAPIJUL/OCT JNAPIJUUOCT JNAIAPIJLC PJUUOCT JNAPIJUL/OCT JNAPIJULJOCT JAP/JUIJOCT JA/,P/JULJOCT 2 3 2 ND(S 4 5 6 7 ND(S 8 ND($)9 10 ND(5)11 12 13 14 15 16 17 18 ND(5)19 2D 21 ND(10) ND(10) ND(10) ND(200) ND(200)22 23 ND(5)24 25 26 27 28 29 30 31 MONTHLYAVG ND(10) ND(10) ND(10) ND(200) ND(200) ND(5) ND($) ND(5)MONTHLY HIGH ND(10) ND(10) ND(10) ND(200) ND(200) ND(S) ND(5) ND(5)MONTHLY LOW ND(10) ND(10) ND(10) ND(200) ND(200) ND($) ND($) ND($)TIMES EXCEEDED NO UMIT NO UMIT NO U MIT NOUMIT 6M-MED3060=0 MOAVG15=0 MOAVG 15 =0 MO AVG 15 = 0 TIMES EXCEEDED DMAX 12240 = 0 DMAX 2 = 0 DMAX 20 = 0 DMAX20 = 0 TIMES EXCEEDED I MAX 30600 = 0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.FLOW-WEIGHTED AVERAGE RESULT REPORTED.

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT, PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRALCOAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (0) 2 FACILITY ID. YEAR /MO/DAY YEAR I MO /DAY STATE CODE NPDES PERMIT #3402003001 BEGINNI 4G 08 / 07 / 01 ENDI 4G 08 1 07/ 31 06 CA0003 51 STATION EFFLUENT 0011 EFFLUENT OOIJ EFFLUENTDOIK EFFLUENT O0IL EFFLUENT001M EFFLUENT 001P EFFLUENT002 EFFLUENT 003 ANALYSIS OIL& GREASE OIL & GREASE OIL & GREASE OIL & GREASE OIL& GREASE OIL & GREASE OIL A GREASE OIL& GREASE UNITS rg/l mg/I mg/ mo/I mg/I mWt mr/i mg/i SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREO. WAP/JLAIJOCT WJA/'IL/OCT JNAPI,PJ.OCT WAP/IJULOCT JNAP/JUIJOCT JNAPJUL/OCT WNAPILAJOCT JMA/JU/OCT

-! ' : "- ----"S 2 3 4 5 6 7 8 9 10 11 12 13................................

..14 2 ND(5)15 16 17 18 ND(5) 2 ND(5) ND(5)19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG NO NO NO ND(5) NO ND(5) ND(5) ND(5)MONTHLY HIGH DISCHARGE DISCHARGE DISCHARGE ND(5) DISCHARGE ND(5) ND(5) ND(5)MONTHLY LOW ND(5) ND(5) ND(5) ND(5)TIMES EXCEEDED MOAVG15=0 MOAVG15=0 MOAVG 15=0 MOAVG5=O0 MOAVG15=0 MOAVG15=0 MOAVG 15=0 MOAVG 15=0 TIMES EXCEEDED DMAX20 = 0 DMAX20 a 0 D MAX20 0 DMAX20 =0 DMAX20 = 0 DMAX20 m 0 DMAX20 = 0 DMAX20 = 0 TIMES EXCEEDED " -.: ".REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (0) 3 FACIUTY I.D. YEAR / MO / DAY YEAR I MO IDAY STATE CODE NPDES PERMITB#34020a)001 BEGINNI qG 08 / 07 /01 END 08 / 07 f31 06 CA0003751 STATION EFFLUENT 004 EFFLUENT 001 EFFLUENT 001D EFFLUENT 001H EFFLUENT 0011L EFFLUENT 001F ANALYSIS OIL & GREASE TOX CONCEN CADMIUM CPDMIUM .CADMIUM CADMIUM UNITS mg/1 TU ugv. u~I ugli u9/1 SMPL TYPE GRAB GRAB QTRLY COMP QTR.LY,COMP QTRLYCOMP I WEEK COMP FREQ. JNAPIJUOCT JA/APIJUUOCT JA/APIJLJOCT JNAPIJUU/OCT i" WAP/JULJOCT JNAPIJLAJOCT 1 2 ND(10) 2 ND(10)3 ND(10)4 5 6 7 8 9 ND(10)10 ND(10)11 12 13 14 15 16 17 18 ND(5 19 20 21 22 23 0.00 24 "" 25 26 27 28 29 30 31 MONTHLYVAVG ND(5 0.00 ND(10) ND(10) ND(10) ND(10)MONTHLY HIGH ND(5 0.00 ND(10) ND(10) ND(10) ND(10)MONTHLY LOW ND(* 0.00 ND(10) ND(10) ND(10) ND(10)TIMES EXCEEDED MO AVG 15 0 NOUMIT NO UMIT NO UMIT NOLUMIT IMES EXCEEDED D MAX 20 = 0 IMES EXCEEDED 6M-MED 0.26=0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER OUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPOI CA 93401 PAGE: (Q) 4 FACILITY I.D. YEAR / MO / DAY YEAR/MO / DAY STATE CODE NPDES PERMIT #3402003001 BEGINNI G 08 / 07 / 01 END 0 08 / 07 1 31 08 CA0003o 51 STATION EFFLUENTOOID EFFLUENTO0iH EFFLUENT 0O0L EFFLUENT 001F EFFLUENT 001D EFFLUENT O01H EFFLUENT 001L EFFLUENT 001F ANALYSIS CHROMIUM T CHROMIUM T CHROMIUM T CHROMIUM COPPER COPPER COPPER COPPER UNITS ug0 ug/1 ugyl ugol ugll ug/1 ug91 ug SMPL TYPE OTRLY COMP OTRLY COMP OTRLY.COMP 1 WEEKCOMP QTRLY COMP OTRLY COMP OTRLY COMP I WEEK COMP FREO. J/AP/JLAUOCT JNAP/JUL/OCT JNAPIJU.OCT JNAPIJUL/OCT JA/AP/JUL/OCT JNAP/JULUOCT JWAP/JUL/OCT JNAPIJULJOCT 2 40 2 ND(10) I5 2 ND(10)3 ND(10) ND(10)4 5 6 7 8 9 39 118 10 ND(10)11 12 13 14 is 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG ND(I0) 40 ND(I0) ND(10) ND(I0) 67 ND(l0) ND(l0)MONTHLY HIGH ND(1O) 40 ND(1O) ND(10) ND(10) 118 ND(10) ND(10)MONTHLYLOW ND(10) 39 ND(lO) ND(10) ND(10) 15 ND(10) ND(10)TIMES EXCEEDED NO UMIT NO UMIT NOUMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (0) 5 FACILITY I.D. YEAR / MO / DAY YEAR MO / DAY STATE CODE NPDES PERMIT#3402003001 BEGINNI 4G 08 / 07 /01 ENDING 08 / 07/ 31 06 CA00037 1 STATION EFFLUENT 001D EFFLUENT 001H EFFLUENT 011 EFFLUENT 001F EFFLUENT 0010 EFFLUENT 001H EFFLUENT 001L EFFLUENT O0IF ANALYSIS LEAD LEAD LEAD LEAD MERCURY MERCURY MERCURY MERCURY UNITS u(Y1 ug/1 ug/1 uglI ugh u9/1 ugoh ugoh SLMP TYPE QTRLY COMP OTRLY COMP OTRLY COMP I WEEK COMP OTRLY COMP OTRLY COMP OTRLY COMP I WEEK COMP FRED. JWAPIJUL/OCT JNAP/JUUJOCT JNAPIJULJOCT JWAP/JULJOCT JNAP/JULJOCT JNAP/IJULOCT JNAP/JLAJOCT JAPI/JL/OCT 2 ND(10) 2 ND(10) ND(0 20) ND(0.20)3 ND(10) ND(Q 20)4 5 6 7 8 9 ND(10) ND(0,20)10 ND(10) ND(0 20)11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLYAVG ND(10) ND(10) ND(10) ND(10) ND(0 20) ND(0.20) ND(Q 20) ND(Q20)MONTHLY HIGH ND(10) ND(10) ND(10) ND(10) ND(0 20) ND(0.20) ND(Q20) ND(Q20)MONTHLYLOW ND(10) ND(10) ND(10) ND(10) ND(0.20) ND(0.20) ND(Q 20) ND(Q20)TIMES EXCEEDED NO UMIT NO UMIT NO LIMIT NOUMIT NO LIMIT NO UMIT NO LIMIT NO UMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.A4, CAUFORNIA REGIONAL WATER QUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPOI CA 93401 PAGE: (0) 6 FACIUTY ID. YEAR/ MO / DAY YEAR I MO/ DAY STATE CODE NPDES PERMIT #3402003001 BEGINNING 08 / 07 / 01 ENDI 4G 08 / 07/ 31 06 CA0003751 STATION EFFLUENT 010D EFFLUENT 001 H EFFLUENT 001L EFFLUENT O01F EFFLUENT 000D EFFLUENT O01H EFFLUENT 001L EFFLUENT 001F ANALYSIS NICKEL NICKEL NICKEL NICKEL SILVER SILVER SILVER SILVER UNITS ug/h ugi uoi ugw ug/1 ugh1 ugli ugi1 SMPL TYPE GTRLY COMP OTRLY COMP OTRLY COMP i WEEKCOMP OTRLY COMP QTRLY COMP OTRLY COMP 1 WEEKCOMP FRED. JNAP/JUL/OCT JNAP/JUL/OCT JA/AP/JUUOCT JNAP/JLUJOCT NAP/JUL/OCT JA/AP/JULJOCT JA/AP/JUL/OCT JNAP/JUUIOCT 2 23 2 ND(10) ND(10) 2 ND(10)3 ND(10) ND(10)4 5 6 7 8 9 25 ND(10)10 ND(10) ND(10)11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG ND(10) 24 ND(10) ND(10) ND(10) ND(10) ND(10) ND(10)MONTHLYHIGH ND(10) 25 ND(10) ND(10) ND(10) ND(1 0) ND(10) ND(10)MONTHLY LOW ND(10) 23 ND(10) ND(10) ND(10) ND(10) ND(10) ND(10)TIMES EXCEEDED NO UMIT NOLIMIT NO UMIT NOUMIT. NOLUMIT NO UMIT NO UMIT NOUMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.i-CAUFORNIA REGIONAL WATER OUAUTY DISCHARGE SELF MONITORING REPORT-" PACIFIC GAS AND ELECTRIC CO.CONTROLBOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 7 FACIUTY I.D. YEAR I MO / DAY YEAR / MO I DAY STATE CODE NPDES PERMIT #3402003001 BEGINNING 08 / 07 / 01 ENDIG 08 / 07 I 31 06 CA0003751 STATION EFFLUENT 011D EFFLUENTOO1H EFFLUENT 001L EFFLUENT 001 F ANALYSIS ZINC ZINC ZINC ZINC UNITS Lv1 uJIl ugvi ug/l SMPL TYPE OTRLY COMP DTRLY COMP DTRLY COMP 1 WEEK COMP FRED. JA/APIJUL/OCT JANAPIJUtJOCT JNAP/JULIOCT JNAPIJIUJOCT 2 14 2 ND(10)3 58 4 5 6 7 8 9 ND(10)10 ND(10)11 12 13 , f.r A 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG 58 10 ND(10) ND(10)M0NTHLYIHIGH 58 14 ND(10) ND(l0)MONTHLY LOW 58 ND(10) ND(10) ND(10)TIMES EXCEEDED NOLIMIT NOLIMIT NOUMIT .,NO UMIT TIMES EXCEEDED .IMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 8 FACIUTY I.D. YEAR/ MO /DAY YEAR / MO I DAY STATE CODE NPDES PER MET #3 4=00O01 BEGINNI IG 08 / 07 / 01 ENDIG 08 / 07 ' 31 06 CA0003751 STATION EFFLUENTOOO1 EFFLUENT OtF EFFLUENT 0011 EFFLUENT 001L EFFLUENT 001M ANALYSIS COPPER COPPER COPPER COPPER COPPER UNITS rmg/1 mg/ mol mg/ mgl/SMPL TYPE 24-HR COMP. 24-HR COMP. 24-HR COMP. 24-HR COMP. 24-HR COMP.FRED. METALCLNG METAL CLNG METALCLNG METALCLNG

..METAL CLNG 2 3 4 5 6 7 8 9 10 11 12 13 14 Is 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG NO NO NO NO NO MONTHLY HIGH DISCHARGE DISCHARGE DISCHARGE DISCHARGE DISCHARGE MONTHLY LOW TIMES EXCEEDED MOAVG 1 = 0 MOAVG 1 = 0 MOAVG 1 = 0 MOAVG 1 = 0 MOAVG1 =0 TIMES EXCEEDED DMAX1 =0 DMAX1 =0 DMAX1 =0 DMAX1 =0 DMAX1 =0 TIMES EXCEEDED REMARKS: .NUMBER OF SAMPLES TAKEN DURING THE DAY.PRINCIPAL EXECUTIVE OFFICER JAMES A. BECKER CALIFORNIA REGIONAL WATER OUAUITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 9 FACIUIY I.D. YEAR/MO/DAY YEAR/MO/DAY STATE CODE NPDES PER MITI#3402003001 BEGINNI 4G 08 / 07 / 01 ENDI G 08 / 07 1 31 06 CA0003751 STATION EFFLUENT 0010 EFFLUENT OO1F EFFLUENT 0011 EFFLUENT 00iL EFFLUENT 001M ANALYSIS IRON IRON IRON IRON IRON UNITS mg1 m mg/i m911 mg/1 rg/i SMPL "rPE 24.HR COMP. 24-HR COMP. 24-HR COMP. 24-HR COMP. 24-HR COMP.FRED. METAL CLNG METAL CLNG METALCLNG METALCLNG METALCLNG 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG NO NO NO NO NO MONTHLY HIGH DISCHARGE DISCHARGE DISCHARGE DISCHARGE' DISCHARGE MONTHLY LOW TIMES EXCEEDED MOAVG I = 0 MOAVG 1 = 0 MO AVG 1 =0 MOAVG I = 0 MOAVG 1 =0 TIMES EXCEEDED DMAX1 =0 DMAXI =0 DMAXI =0 DMAX1 =0 DMAXI =0 IMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER OUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO CA 93401 PAGE: (A) 1 FACIUTY I.D. YEAR/MO / DAY YEAR/ MO / DAY STATE CODE NPDES PERMIT #3402003001 BEGINNI 4 08 / 07 / 01 ENDI 4G 08 I07 31 06 CA00037 1 STATION EFFLUENT 001 INFLUENT EFFLUENT INFLUENT .EFFLUENT 001 INFLUENT EFFLUENT 001 INFLUENT ANALYSIS TITANIUM ARSENIC ARSENIC CADMIUM CADMIUM LEAD LEAD ZINC UNITS ugh/ ug'i ugh ug/t ug/1 ug/l ug, uoIl SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FRED. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 .21 .ND(10)22 23 24 25 26 27 28 29 30 31 MONTHLY AVG ND(10)MONTHLY HIGH ND(10)MONTHLY LOW ND(t0)TIMES EXCEEDED NO UMIT NO UMIT 6M-MED30 = 0 NO UMIT 6M-MED 10 0 NOUMIT 6M-MED 10 0 NOUMIT TIMESEXCEEDED DMAX 10 = 0 DMAX20 = 0 DMAX40 = 0 TIMES EXCEEDED I MAX 400 = 0 I MAX 50- 0 IMAX100=0 REMARKS: *NUMBER OF SAMPLES TAKEN DURING THE DAY."INFLUENT ANALYSIS PERFORMED FOR COMPARISON TO EFFLUENTS.

CAUFORNIA REGIONAL WATER OUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROLBOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION P0 BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 2 FACIUTY I.D. YEAR / MO/DAY YEAR/MO/DAY.

STATE CODE NPDES PERMIT #3402003001 BEGINNI G 08 / 07 / 01 ENDI 4G 08 / 07 / 31 06 CA0003D 1 STATION INFLUENT EFFLUENT 001 INFLUENT EFFLUENT 001 INFLUENT EFFLUENT001 INFLUENT EFFLUENT001 ANALYSIS MERCURY MERCURY SILVER SILVER CYANIDE CYANIDE PHENOLIC CMP PHENOLIC CMP UNITS uglI ugy1 ugh1 ug/l ug/1 ug/l ug#1 (NONCL) ug/1 (NONCL)SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREO. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO UMIT 6M-MED 0.2=0 NOUMIT 6M-MED 2.9=0 NOUMIT 6M-MED3)--O NOLUMIT 6M-MED 150=0 TIMES EXCEEDED DMAX 0.8 = 0 DMAX 13.6=0 DMAX 100=0 DMAX 610= 0 TIMES EXCEEDED I MAX 2 = 0 I MAX 35= 0 IMAX 260=-0 1 MAX 1530=0 REMARKS: .NUMBER OF SAMPLES TAKEN DURING THE DAY.PRINCIPAL EXECUTIVE OFFICER JAMES R. BECKER CAUFORNIA REGIONAL WATER QUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION POBOX56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 3 FACIULTY I.D. YEAR/MO/DAY YEAR/MO/DAY STATE CODE NPDES PERMIT #3402003001 BEGINNI G 08 1 07 I 01 ENDI 4G 08 1 07 31 06 CA00037 1 STATION INFLUENT EFFLUENT 001 EFFLUENT0011D EFFLUENT 00ID EFFLUENT OID EFFLUENT005 EFFLUENT 008 ANALYSIS CHLOR PHENOL CHLOR PHENOL LITHIUM BORON HYDRAZINE OL & GREASE OIL& GREASE UNITS u911 ugo' mofl m91i mo1l mrg/ mo11 SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREO. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 " 18" " 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NOUMIT 6M-MED 10-0 NO UMIT NOUMIT NO UMIT MO AVG 15=0 MOAVG 15=0 TIMES EXCEEDED DMAX 20=0 DMAX 20=-0 DMAX 20=0 TIMES EXCEEDED IMAX 50=-0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

ALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.'ONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT ENTRAL COAST REGION POBOX56 95 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 AN LUIS OBISPO. CA 93401 PAGE: (A) 4 FACIUTY I.D. YEAR / MO / DAY YEAR /MO I DAY STATE CODE NPDES PERMIT #3402003001 BEGINNING 08 / 07 / 01 ENDI G 08 I 07 31 06 CA03- 1I STATION EFFLUENT 009 EFFLUENT 013 EFFLUENT015 EFFLUENT 016 EFFLUENT 017 INFLUENT EFFLUENT 001 ANALYSIS OIL & GREASE OIL 6 GREASE OIL & GREASE OIL 8 GREASE OIL & GREASE PCBeS PCB'S UNITS mg/1 mg/I mg/1 mo l mg/1 uO l ug/1 SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2 3 4 5 6 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLYLOW TIMES EXCEEDED MO AVG 15=0 MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 MO AVG 15=0 NO UMIT NOUMIT TIMES EXCEEDED DMAX 20=-0 DMAX 20=-0 DMAX 20=-0 DMAX 20=0 DMAX20=0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONALWATER OUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROLBOARD*

DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE: (A) 5 FACIUTY I.D. YEAR I MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #3402003001 BEGINNING 08 07 / 01 ENDING 08 / 07 31 06 CA0003751 STATION EFFLUENT OIN EFFLUENT 0OIN EFFLUENT O00N EFFLUENT DOiN EFFLUENT O00N EFFLUENT OOIN EFFLUENT 001 N EFFLUENT OO1N ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS MOISTURE TOT KJLDL N AMMONIAIN)

NITRATE (N) TOTPHOSPHS pH OIL & GREASE BORON SMPL TYPE % mrkg mgflg mffKg pH units mogAg mgg FREQ. GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO U MIT NO U MIT NOLUMIT NO U MIT NO U MIT NO U MIT NOLUMIT NOUMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROLBOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 6 FACIUTY I.D. YEARI MO I DAY YEAR / MO /DAY STATE CODE NPDES PERMIT #3 402002001 BEGINNI 4G 08 I 07 / 01 ENDI sG 08 / 07 31 06 CA0003715 STATION EFFLUENT 001N EFFLUENT 0OIN EFFLUENT O0IN EFFLUENT 001N EFFLUENT O0IN EFFLUENT 0OIN EFFLUENT 001N EFFLUENT ODIN ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS CADMIUM COPPER CHROMIUM LEAD NICKEL MERCURY ZINC VOLUME SMPL TYPE /Ig mg/kg rmglkg mglkg Mpg mgkg tons FREO. GRAB GRAB GRAB GRAB GRAB GRAB GRAB OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2 3 4 5 6 7 ..8 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED 10xSTLC=6 10xSTLC=0 1OxSTLC=6 1OxSTLC=0 10xSTLC=0 10xSTLC=0 1OxSTLC=G TIMES EXCEEDED 10 mg/kg=0 250 mg/kg--O 50 mg/kg=6 50 mg/kg=6 200 mgtkg=6 2 mgkg=0 2500 mcykg=O IMES EXCEEDED TTLC>160=6 TTLC>2500=-O TTLC> 500=0 TTLC>1000=0 TTLC>2000=6 TTLC>26=0 TTLC> 5DOD=0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

APPENDIX 3 DIABLO CANYON POWER PLANT Influent and Effluent Monitoring August 2008 CALUFORNIA REGIONAL WATER QUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 1 FACILITY I.D. YEAR MO/DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #3402003001 BEGINNI 0G 08 / 08 /01 ENDI qG 08 / 08 31 06 CA0003751 STATION INFLUENT EFFLUENT 001 DELTATEMP EFFLUENT 001 INFLUENT EFFLUENT001 EFFLUENT 001P EFFLUENT 002 ANALYSIS TEMPERATURE TEMPERATURE TEMPERATURE FLOW pH pH pH pH UNITS DEGREES F DEGREES F DEGREES F MGD pH UNITS pH UNITS pH UNITS pH UNITS SMPL TYPE METERED METERED METERED RECORDED GRAB GRAB GRAB GRAB FREO. CONTINUOUS CONTINUOUS CONTINUOUS DAILY MONTHLY MONTHLY I") MONTHLY MONTHLY 1 55.0 739 1119 2486 2 54.0 72.7 18.7 2486 3 54.0 724 18.4 2486 4 54.9 73.1 162 2486 5 55.1 73.5 18.4 2486 6 56.2 74.9 1117 2488 2 7.6 2 7.9 7 56.4 75.2 18.8 ' 2486 8.0 8.0 8 55.5 74.4 18.9 2486 9 55,8 74.5 117 2486 10 5519 74.7 18.8 2486 11 55.7 74.2 18.5 2486 12 55.9 74.7 18.8 2486 13 56.8 75.6 18.8 2486 14 56.6 75.6 19.0 2486 15 55.7 74.5 18.8 2486 16 56.0 75.0 190 2486 17 56.1 73.7 17.6 1862 18 56.1 66.1 10.0 2486 19 55.2 64.8 9.6 2486 20 54.0 635 9.5 2486 21 54.0 63.4 9.4 2486 22 54.6 56.2 1.6 2486 23 55.5 57.2 1.7 2486 24 55.5 57.2 1.7 2486 25 553 65.0 9.7 2486 26 54.9 64.6 9.7 2486 27 56.0 65.5 9.5 2486 28 57.1 66.8 9.7 2486 29 57.3 67.2 9.9 2486 30 57.8 706 128 2018 31 57.0 69.0 12.0 2200 MONTHLY AVG 557 69.7 14.0 2442 8.0 8.0 7.6 7.9 MONTHLY HIGH 57.8 75.6 19.0 2486 ' 8.0 8.0 7.6 7.9 MONTHLY LOW 54.0 56.2 1.6 1862 8.0 8.0 7.6 7.9 TIMES EXCEEDED NO UMIT NO UMIT MAX 22 0 MAX 2760 =0 NO LIMIT NOLIMIT NOUMNT NO U MIT TIMES EXCEEDED (1 TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.""EXCEPT DURING DEMUSSELING.

DAILY WHEN DISCHARGING CHEMICAL CLEANING WASTES FROM DISCHARGES 001D, F, I, L, AND/OR M.

CALIFORNIA REGIONAL WATER OUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRICCO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PRANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 2 FACILITY I.D. YEAR / MO / DAY YEAR I MO I DAY STATE CODE NPDES PER MIT #3402003001 BEGINNI IG 08 / 08 1 01 ENDI qG 08 / 08 / 31 06 CA0003751 STATION EFFLUENT 003 EFFLUENT 004 EFFLUENT O0IN EFFLUENT 001P EFFLUENT 003 EFFLUENT 001 F EFFLUENT 001 EFFLUENT 001 ANALYSIS pH pH OIL & GREASE OIL A GREASE OIL & GREASE OIL & GREASE T CHLOR RES CHLORINE USED UNITS pH UNITS pH UNITS m oil m oA mgo m oA uoA bs/day SMPL TYPE GRAB GRAB COMPOSITE GRAB GRAB GRAB GRAB ( ")I RECORDED FRED. MONTHLY MONTH-LY WEEKLY WEEKLY (-) WEEKLY (I MONTHLY 2 per CYCLE MONTHLY 1 3 ND(5) 14 634 2 11 634 3 < 10 634 4 < 10 634 5 ND(5) 10 634 6 7.9 7.9 12 634 7 3 ND(5) 12 634 8 14 634 9 16 634 10 16 634 11 17 641 12 17 648 13 19 648 14 3 < 5 16 648 15 17 648 16 19 648 17 .' ... 12 408 18 .27 614 19 3 ND(5) .' .30 706 20 39 706 21 39 684 22 39 662 23 30 662 24 27 662 25 21 662 26 3 ND(5) 27 662 27 25 634 28 19 605 29 16 605 3D 19 499 31 16 526 MONTI-LYAVG 7.9 7.9 < 5 NO NO ND(5) 19 629 MONTHLY HIGH 7.9 7.9 7 DISCHARGE DISCHARGE ND(5) 39 706 MONTHLY LOW 7.9 7.9 ND(5) ND(5) 10 408 TIMES EXCEEDED NO LIMIT NO UMIT MOAVG15 0 MOAVG 15 = 0 MOAVG 15 =0 MOAVG 15=0 I MAX 200 0 NO LIMIT TIMES EXCEEDED D MAX20= 0 D MAX20= 0 D MAX20= 0 D MAX 20 =0 TIMES EXCEEDED REMARKS: NUMBER OFSAMPLES TAKEN DURING THE DAY.WHEN 0OtNIS DISCHARGING TO001P.WHEN 001P IS DISCHARGING TO 003.CONTINUOUS CHLORINE MONITORING USED II.t CAUFORNIA REGIONAL WATER OUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION .PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACHCALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 3 FACIUTY I.D. YEAR I MO I DAY YEAR / MO /DAY STATE CODE NPDES PERMIT #3402003001 BEGINNING 08 / 08 I01 ENDING 08 I 08 I 31 06 CA0003751 STATION EFF 001N=>003 EFF O01N=>003 EFFLUENT 001D EFFLUENTO01F ANALYSIS TOTLCOLIFORM FECAL COLIFORM SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS MPN/100ml MPN/100ml mgil tIs FLTR mg/i 2nd FLTR mg/I NET mg/I I sI FLTR mg/I 2nd FLTR mgoi NET SMPL TYPE GRAB GRAB .,GRAB GRAB FREQ. 4 TIMES/WEEK 4 TIMES/WEEK MONTHLY MONTHLY 2 3 4 5 2 10 2 2 2 10 6 2 2 2 ND(5)7 8 9 10 11 2 17 2 < 2 2 17 12 13 14 15 16 17 18 2 4 2 ND(5)19 5 7 5 < 5 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG NO NO .5 10 MONTHLY HIGH DISCHARGE DISCHARGE 17 11 MONTHLY LOW ND(5) 9 TIMESEXCEEDED 8/0 SMPLS>1K MEAN>200=

NOUMIT NOUMIT MOAVG30=0 NOUMIT NOUMIT MOAVG30=0 TIMES EXCEEDED 90 % SMPLS>400 D MAX 100 = 0 D MAX 100 = 0 TIMES EXCEEDED I MAX>1OK REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.FLOW-WEIGHTED AVERAGES REPORTED.

CAUFORNIA REGIONAL WATER OUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 4 FACIUTY I.D. YEAR/ MO / DAY YEAR I MO / DAY STATE CODE NPDES PERMIT #3 402003O01 BEGIINING 08 I 08 / 01 ENDING 08 I 08 / 31 06 CA0003751 STATION EFFLUENT 001G EFFLUENT 001H ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mgji I s FLTR mg/1 2nd FLTR mgoi NET mg/il Isl FLTR mg/I 2rid FLTR mg/l NET SMPL TYPE GRAB GRAB FRED. MONTHLY MONTHLY 1 2. 2 ND(5)2 2 < 2 ND(S)3 4 5 < 2 ND(S)6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG ND(5) ND(S)IONTHLY HIGH ND(5) ND(S)MONTHLY LOW ND(5) ND(S)TIMES EXCEEDED NOLUMIT NO UMIT MOAVG 30=0 NOUMIT NO UMIT MO AVG 30=0 TIMES EXCEEDED D MAX 100= 0 D MAX 100 = 0 IMES EXCEEDED /REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 5 FACIUTY I.D. YEAR / MO / DAY YEAR / MO/ DAY STATE CODE NPDES PERMIT #3402003001 BEGINNING 08 / 08 I 01 ENDI G 08 / 081 31 06 CA0003751 STATION EFFLUENT 0011 EFFLUENT OOIJ ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mlgl 1st FLTR mgl2r2nd FLTR rag'1 NET mn/I 1st FLTR mg/1 2ndFLTR mg/I NET SMPL TYPE GRAB GRAB FREO. MONTHLY MONTHLY I 2 3 4 5 6 7 8 9 10 11 12 13 .E 14 15 16 17 2 ND(5)18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG NO ND(5)MONTHLY HIGH DISCHARGE ND(5)MONTHLY LOW ND(5)TIMES EXCEEDED NOUMIT NOLIMIT MOAVG 30 = 0 NOLUMIT NO U MIT MOAVG 30 0 TIMES EXCEEDED MAX 100 = 0 MAX 100 = 0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 -AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401-PAGE: (M) 6 FACIULTY I.D. YEAR / MO /DAY YEAR / MO/ DAY STATE CODE NPDES PERMIT #3402003001 BEGINNING 08 / 08 / 01 ENDI 4G 08 / 08 / 31 06 CA0003751 STATION EFFLUENT 001K EFFLUENT 001L ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mg/il stFLTR mgoI 2nd FLTR mgil NET mg/i lsIFLTR mg1i 2nd FLTR mg/i NET SMPL TYPE GRAB GRAB FRED. MONTHLY MONTHLY 1 2 3 4 5 2 < 2 2 ND(5)6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG NO ND(5)MONTHLY HIGH DISCHARGE ND(5)MONTHLY LOW ND(5)TIMES EXCEEDED NO UMIT NOUMIT MOAVG 30 m 0 NOLUMIT NOLUMIT MOAVG 30 0 TIMES EXCEEDED D MAX 100 = 0 D MAX 100 = 0 IMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY............................

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CAUFORNIA REGIONAL WATER OUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 7 FACIUTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #3402003001 BEGINNING 0B / 08 / 01 ENDI G 08 / 08 131 06 CA000371 STATION EFFLUENT 0OIM EFFLUENT 001N EFFLUENT 001P ANALYSIS SUSPENDED SOLIDS SUSPENDED SLDS SUSPENDED SOLIDS UNITS Ig1 IstIFLTR mgt 2nd FLTR mg/ NET m91 mgfI lstFLTR mg/l 2rnd FLTR mgl1 NET SMPL TYPE GRAB COMPOSITE GRAB FREO. MONTHLY WEEKLY MONTHLY 1 30 2 3 4 5 6 4 2 ND(S)7 36 8 9 10 11 12 13 14 29 15 16 17 18 19 14 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG NO 27 ND(5)MONTHLY HIGH DISCHARGE 36 ND(S)MONTHLY LOW 14 ND(5)TIMES EXCEEDED NO U MIT NOLUMIT MO AVG 30 = 0 MOAVG 60 0 NOUMIT NO ULMIT MO AVG 30 = 0 TIMES EXCEEDED DMAX 100 = 0 DMAX 100 = 0 TIMES EXCEEDED REMARKS: R NUMBER OF SAMPLESTAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 8 FACILITY I.D. YEAR/MO IDAY YEAR/ MO I DAY STATE CODE NPDES PERMIT #3 402003DO1 BEGINNING 08/ 08 /01 ENDI 4G1 08 108/ 31 06 CA0003751 STATION EFFLUENT 002 EFFLUENT 003 ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mgo' 1st FLTR moil 2nd FLTR mr1l NET mgoll1sIFLTR .mgol 2nd FLTR mg/l NET SMPLTYPE GRAB 'GRAB FREQ. MONTHLY MONTHLY 2 3 4 5 6 2 < 2 2 < 2 2 ND(5) 2 9 2 < 2 2 9 7 8 9 10 11 12 13 14 15 16 17 21 2 20 18 19 20 21 22 23 " : 24 25 26 27 28 29 30 31 MONTHLYAVG 7 9 MONTHLY HIGH 20 9 MONTHLY LOW ND(5) 8 TIMES EXCEEDED NO UMIT NO U MIT MOAVG 30 = 0 NO UMIT NO U MIT MOAVG 30 = 0 TIMES EXCEEDED D MAX 100 = 0 D MAX 100 = 0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.I ! ',

CAUFOR41A REGIONAL WATER QUAULTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.ONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 95AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE:(M) 9 FACIUITY I.D. YEAR/ MO / DAY YEAR / MOI DAY STATE CODE NPDES PERMIT #3 402003001 BEGINNING 08 / 08 / 01 ENDI 4G 08 I 08 31 06 CA0003 51 STATION EFFLUENT 003 EFFLUENT O0IN EFFLUENT 001 EFFLUENT 001 EFFLUENT 001 EFFLUENT 001 ANALYSIS SUSPENDED SOLIDS SETTL SOLIDS T CHROMIUM COPPER NICKEL ZINC UNITS rag/1 1sI FLTR mgll 2nd FLTR mgIt NET myul 411 ug/ ull ug/l SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB FRED. WEEKLY WHEN O~IN & 001P >003 WEEKLY MONTILY MONTHLY MONTHLY MONTHLY t ND(0.1)2 3 4 5 6 7 ND(0.1) ND(10) ND(10) ND(10) ND(10)8 9 10 11 12 13 14 ND(01)15 16 17 18 19 ND(. 1)20 21 22 23 24 25 26 ND(0.1)27 28 29 30 31 MONTHLY AVG NO ND(Q1) ND(10) ND(10) ND(10) ND(10)MONTHLY HIGH DISCHARGE ND(O. 1) ND(10) ND(I0) ND(10) ND(10)MONTHLY LOW ND(O.1) ND(10) ND(10) ND(10) ND(10)TIMES EXCEEDED NOUMIT NO UMIT MO AVG 30 = 0 MO AVG 1.0 0 6M-MED 10 =0 6M-MED 10 =0 6M-MED 30 =0 6M-MED 70=0 TIMES EXCEEDED DMAX 100 = 0 DMAX, = 0 DMAX40 = 0 DMAX 50 = 0 DMAX 100 = 0 DMAX380 = 0 TIMES EXCEEDED IMAX 100 =0 IMAX 140 =0 I MAX260= 0 I MAX990=0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILABEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 1 FACIUTY I.D. YEAR I MO / DAY YEAR / MO /DAY STATE CODE NPDES PERMIT #3402003001 BEGINNI4 08 / 08 / 01 ENDING 08 / 08 131 06 CA0003751 STATION INFLUENT INFLUENT INFLUENT INFLUENT EFFLUENT 001 EFFLUENT 001D EFFLUENT O01G EFFLUENT O01H ANALYSIS T CHROMIUM COPPER NICKEL AMMONIA(N)

AMMONIA(N)

OIL & GREASE OIL& GREASE OIL & GREASE UNITS ug/91 ug/91 ui ug/I ug/I moil from ragi1 SMPL "YPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FRED. JNAPIJUIJOCT JA/AP/JUUOCT JNAP/JULJOCT JNAPIJUL/OCT JNAP/JJUOCT JAP/IJLAJOCT WJAP/JLAJOCT JAJAPJULOCT 2 3 4 5 6 7 ND(t0) ND(10) ND(10)8 9 10 11 12 13 14 15 16 17 t8 8 19 2 ND(5)20 21 22 23 24 25 26 27 28 29 3D 31 MONTHLYAVG ND(10) ND(10) ND(10) c 5 MONTHLY HIGH ND(10) ND(10) ND(10) B MONTHLY LOW ND(I0) ND(10) ND(10) ND(%TIMES EXCEEDED NO LIMIT NO UMIT NOUMIT NOUMIT 6M-MED3060

=0 MOAVG 15=0 MO AVG 15 0 MO AVG 15 0 TIMES EXCEEDED DMAX 12240 = 0 DMAX20= 0 DMAX2O = 0 DMAX2O = 0 IMES EXCEEDED I MAX 30600 = 0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.FLOW-WEIGHTED AVERAGE RESULT REPORTED.PRINCIPAL EXECUTIVE OFFICER JAMES R. BECKER CAUFORNIA REGIONAL WATER OUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.NTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT ENTRAL COAST REGION PO BOX 56 95 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 AN LUIS OBISPO. CA 93401 PAGE: (0) 2 FACIUTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #3402003001 BEGINNI G 08 / 08 /01 ENDI G 08 / 08 31 06 CA00037 1 STATION EFFLUENT 0011 EFFLUENT OOIJ EFFLUENT 001K EFFLUENT 001L EFFLUENT 001M EFFLUENT DOIP EFFLUENT 002 EFFLUENT 003 ANALYSIS OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE UNITS mg/i mg/i mg/i mg/i mg/I mg/i mg/i mg/o SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FRED. JNAP/JUL/OCT JAP/JUUJOCT JAfAP/JUL/OCT JNAP/JULUOCT JNAP/JULJOCT JWAPIJL/OCT JWAP/JUL/OCT JNAP/JULJOCT 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ND(5 19 18 19 20 21 22 23 24 25 26 27 28 2 ND(5 29 30 31 MONTHLY AVG ND(5 ; 10 MONTHLY HIGH ND(5 19 MONTHLY LOW ND(5 ND(5 TIMES EXCEEDED MOAVG15=0 MOAVGI5=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG 15=0 TIMESEXCEEDED DMAX20 = 0 DMAX20 = 0 DMAX20 = 0 DMAX20 = 0 DMAX20 = 0 DMAX20 = 0 DMAX20 = 0 DMAX20 = 0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROLBOARD DIAELO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION POBOX56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 3 FACIUTY I.D. YEAR/MO / DAY YEAR / MO/ DAY STATE CODE NPDES PERMIT #3402003001 BEGINNING 08 / 0E 01 ENDI G 08 / 08 31 06 CA0003751 STATION EFFLUENT 004 EFFLUENT 001 EFFLUENTOOD EFFLUENT 001H EFFLUENT O01L EFFLUENT 001F ANALYSIS OIL & GREASE TOX CONCEN CADMIUM CADMIUM CADMIUM CADMIUM UNITS mg'1 TU ugt uh ug/1 ugt SMPL TYPE GRAB GRAB OTRLY COMP OTRLY COMP GTRLY COMP 1 WEEK COMP FREO. JNAPIJUIJOCT JWAPIJULIOCT JNAP/JULIOCT JWAP/JUL/OCT JANAPIJUI/OCT JAAP/JUUOCT 2 3 4 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW IMES EXCEEDED MOAVG 15 0 NOLIMIT NO UMIT NO LIMIT NO LIMIT TIMES EXCEEDED D MAX 20 = 0 rIMES EXCEEDED 6M-MED0.26=0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (0) 4 FACIUTY I.D. YEAR I MO I DAY YEAR / MOI DAY STATE CODE NPDES PERMIT #3 402003001 BEGINNING 08 / 08 1 01 ENDI 4G 08 / 08 / 31 06 CA00037 1 STATION EFFLUENT 001D EFFLUENT 001H EFFLUENT 001L. EFFLUENT 0O0F EFFLUENT 0010 EFFLUENT 0011H EFFLUENT OWL EFFLUENT 001F ANALYSIS CHROMIUM T CHROMIUM T CHROMIUM T CHROMIUM COPPER COPPER COPPER COPPER UNITS ug/h uglI ugl1 ug/1 ug/1 ugil u'g 1 ugh SMPL TYPE TIRLY COMP OTRLY COMP OTRLYCOMP I WEEKCOMP' OTRLYCOMP OTRLY COMP OTRLY COMP I WEEKCOMP FREO. JWAP/JUL/OCT JNAPIJUUOCT IAJAPIJIJOCT JNAPIJIJ.OCT JAJAPIJUIJOCT WAP/JUIJOCT WAPIJULUOCT JNAPIJUIJOCT 10 2 3 4 5 6 7 18 19 10 11 12 13 14 15 16 17 18 19 20 21 22 !. *, 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NOUMIT NO U MIT NO U MIT NO U MIT NOLUMIT NOLUMIT NOUMIT NO U MIT TIMES EXCEEDED IMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER OUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 5 FACIUTY I.D. YEAR / MO / DAY YEAR t MO / OWAY STATE CODE NPDES PERMIT #3402003001 BEGINNING 08 / 08 /01 ENDING 08 I 086' 31. 06 CA0003751 STATION EFFLUENT 00ID EFFLUENT 001H EFFLUENT 001L EFFLUENT 001 F EFFLUENT O0ID EFFLUENT 001H EFFLUENT 0O0L EFFLUENT GOlF ANALYSIS LEAD LEAD LEAD LEAD MERCURY MERCURY MERCURY MERCURY UNITS ug/h ug/1 ugo/ ugil ug/I ughl ug/l ugi1 SMPL TYPE QTRLY COMP OTRLY COMP OTRLY COMP I WEEKCOMP OTRLY COMP QTRLY COMP QTRLY COMP I WEEKCOMP FRED. WAPIJUL/OCT JNAPIJULJOCT JNAPIJULIOCT JNAP/JALOCT JNAPIJUIJOCT JNAP/JUtJOCT JNAP/JUUOCT JNAPIJLUJOCT 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NOUMIT NO U MIT NOUMIT NOUMIT NOUMIT NOLIMIT NO U MIT NO UMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER OUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (0) 6 FACIUTY I.D. YEAR / MO/ DAY YEAR MO /DAY STATE CODE NPDES PERMIT #3402003001 BEGINNING 08 / 08 I 01 ENDI 4G 08 /08 / 31 06 CA0003751 STATION EFFLUENT 001D EFFLUENT 001H EFFLUENT 001L EFFLUENT OIF EFFLUENT 001D EFFLUENT 001H EFFLUENT 001L EFFLUENT OIF ANALYSIS NICKEL NICKEL NICKEL NICKEL SILVER SILVER SILVER SILVER UNITS ug/9 u91t'l U911 'u/ ug/I ug/l UG11 u9 1 1 SMPL TYPE OTRLY COMP OTRLY COMP OTRLY COMP I WEEKCOMP OTRLY COMP QTRLY COMP OTRLY COMP I WEEK COMP FRED. JNAP/JULJOCT JNAPIJUL/OCT JNAPIJULJOCT JWAPIJUUOCT JANAPIJUUOCT JA/AP/JULJOCT JNAAPIJUL/OCT JNAPIJLJOCT 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 SU *22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH IONTHLY LOW TIMES EXCEEDED NO UMIT NO U MIT NOUMIT NOUMIT NOUMIT NO ULMIT NOUMIT NO UMIT TIMES EXCEEDED IMES EXCEEDED REMARKS: R NUMBER OF SAMPLES TAKEN DURING THE DAY."t,. :'

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILABEACHCALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (0) 7 FACIUTY I.D. YEAR I MO I DAY YEAR/MO/DAY STATE CODE NPDES PERMIT #3402003001 BEGINNI 4G 08 / 08 1 01 ENDI G 08 / 08 I 31 06 CA0003751 STATION EFFLUENT 001D EFFLUENT 001H EFFLUENT 001L EFFLUENT 001 F ANALYSIS ZINC ZINC ZINC ZINC UNITS ug/I ugil u911 uYI SMPL TYPE OTRLY COMP OTRLY COMP OTRLY COMP 1 WEEKCOMP FREQ. JNAPIJUOCT JAJAP/JUIJOCT IAJA/PIJUJOCT JNAPIUJLOCT 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLYLOW TIMES EXCEEDED NO U MIT NO UMIT NOLUMIT NOUMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 695 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 8 FACILITY I.D. YEAR / MO/ DAY YEAR I MO/ DAY STATE CODE NPDES PERMIT #3402003001 BEGINNI 4G 08 / 08 I 01 ENDI 4G 08 / 08 / 31 06 CA0003751 STATIN EFFLUENT 001D EFFLUENT 001F EFFLUENT 0011 EFFLUENTO01L EFFLUENT OO1M ANALYSIS COPPER COPPER COPPER COPPER COPPER UNITS m9/1 mo1/ mg/i mgl' mgil SMPLTYPE 24.HR COMP. 24-HRCOMP.

24-HR COMP. 24-HRCOMP.

24-HR COMP.FREO. METAL CLNG METAL CLNG METAL CLNG METAL CLNG METAL CLNG 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG NO NO NO NO NO MONTHLY HIGH DISCHARGE DISCHARGE DISCHARGE DISCHARGEý DISCHARGE MONTHLY LOW TIMES EXCEEDED MO AVG 1 =0 MOAVG I =0 MOAVG 1 0 MOAVG I =0 MOAVG I =0 TIMESEXCEEDED DMAX1 =0 DMAX1 =0 DMAXI =0 DMAXI =0 DMAX1 =0 TIMES EXCEEDED I REMARKS: .NUMBER OF SAMPLES TAKEN DURING THE DAY.PRINCIPAL EXECUTIVE OFFICER JAMES R. BECKER CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILABEACH,CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 9 FACIUTY I.D. YEAR/MO/DAY YEAR/ MO/DAY STATE CODE NPDES PERMIT #3402003001 BEGINNING 08 / 08 01 END 4G1 08 08 31 06 CA0003751 STATION EFFLUENT 0010 EFFLUENT 001F EFFLUENT 0011 EFFLUENT EFFLUENT 0OIM ANALYSIS IRON IRON IRON IRON IRON UNITS mrtg mo/I mjg/I mg/I mg/I SMPL TYPE 24-HRCOMP.

24-HR COMP. 24-HR COMP. 24-HRCOMP.

24.HRCOMP.

FREQ. METAL CLNG METAL CLNG METAL CLNG METAL CLNG METAL CLNG 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 .22 23 24 25 26 27 28 29 30 31 MONTHLY AVG NO NO NO NO NO MONTHLY HIGH DISCHARGE DISCHARGE DISCHARGE DISCHARGE DISCHARGE IONTHLY LOW TIMES EXCEEDED MOAVG 1 =0 MOAVG1 =0 MOAVG 1 =0 MOAVG 1 =0 MOAVG 1 =0 IMESEXCEEDED DMAX1 =0 DMAXi =0 DMAX1 =0 DMAX1 =0 DMAX1 =0 IMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY..

CAUFORNIA REGIONAL WATER QUAU'TY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO CA 93401 PAGE: (A) 1 FACIUTY I.D. YEAR / MO /DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #3402003001 BEGINNI 4G 08 I 08 I 01 ENDI 4G 08 / 08 31 06 CA0003751 STATION EFFLUENT 001 INFLUENT EFFLUENT INFLUENT EFFLUENT 001 INFLUENT EFFLUENT 001 INFLUENT ANALYSIS TITANIUM ARSENIC ARSENIC CADMIUM CADMIUM LEAD LEAD ZINC UNITS ug/l ugl ug1 ug91 u9'h ugo ug/l ug/I SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2 3 4 5 6 7 ND(10)B 9 10 11 12 13 14 15 16 17 1B 19 20 21 22 23 24 25 26 27 28 30 31 MONTHLY AVG ND(10)MONTHLY HIGH ND(10)MONTHLY LOW ND(10)TIMES EXCEEDED NOUMIT NOUMIT 6M-MED 30 = 0 NOUMIT 6M-MED 10 =0 NOUMIT 6M-MED 10 0 NOUMIT TIMES EXCEEDED D MAX 150 = 0 D MAX 20 = 0 D MAX 40 = 0 TIMES EXCEEDED I MAX 400 = 0 I MAX 50 -0 I MAX 100 =0 REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.INFLUENT ANALYSIS PERFORMED FOR COMPARISON TO EFFLUENTS.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF.MONITORING REFýTRf PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVlSTA PLACE. SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBSPO.CA 93401 PAGE: (A) 2 FACIUTY I.D. YEAR / MO / DAY YEAR/MO/DAY STATE CODE NPDES PERMIT N 3 402003DO1 BEGINNI 4G 08 / 08 I 01 ENDI 46 08 I 08 31 06 CA00037 1 STATION INFLUENT EFFLUENT 001 INFLUENT EFFLUENT 001 INFLUENT EFFLUENT 001 INFLUENT EFFLUENT 001 ANALYSIS MERCURY MERCURY SILVER SILVER CYANIDE CYANIDE PHENOLIC CMP PHENOLIC CMP UNITS ug/I ugh1 uOll ugf1 ug/1 ug/ ug/I (NONCL) ugf1 (NONCL)SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FRED. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO UMIT 6M-MEDO02--0 NO UMIT 6M:MED2.9=0

.. NOUMIT 6M-MED 30=-0 NO UMIT 6M-MED 150=0 TIMES EXCEEDED DMAX 0.8 = 0 DMAX 136=, ,..:. DMAX 100=0 DMAX 61=- 0 TIMES EXCEEDED IMAX 2 = 0 IMAX 35= 0 IMAX 260=0 IMAX 1530=0 RE MARKIS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER OUAUITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 3 FACIULTY I.D. YEAR I MO I DAY YEAR / MO/ DAY STATE CODE NPDES PERMIT #3402003001 BEGINNING 08 / 08 01 ENDING 08 / 08 / 31 06 CA0003751 STATION INFLUENT EFFLUENT 001 EFFLUENT 001D EFFLUENT 001D EFFLUENT 001D EFFLUENT 005 EFFLUENT 008 ANALYSIS CHLOR PHENOL CHLOR PHENOL LITHIUM BORON HYORAZINE OIL & GREASE OIL& GREASE UNITS ug/1 ug/h mgI mg/I mg/i mg/I mog/SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2 3 4 6 7 B 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NOUMIT 6M-MED 10=0 NO UMIT NO UMIT NOLUMIT MOAVG 15=0 MOAVG 15=0 IMES EXCEEDED DMAX 20=0 DMAX20=0 DMAX 20=0 IMES EXCEEDED IMAX 50=0 REMARKS; NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION r PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 ,PAGE: (A) 4 FACIUTY I.D. YEAR/MO/DAY YEAR/MO/DAY STATE CODE NPDES PERMIT #3402003001 BEGINNI IG 08 / 0 / 01 END 4G 08 / 08 31 06 CAOO3751 STATION EFFLUENT 009 EFFLUENT 013 EFFLUENT 015 EFFLUENT 016 EFFLUENT 017 INFLUENT EFFLUENT 001 ANALYSIS OL & GREASE OIL & GREASE OIL & GREASE OIL& GREASE OIL& GREASE PCB'S PCB'S UNITS mgfI mg/ mg/I m911 mg/I ug/i umh SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FRED. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ..," ..18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 NOLUMIT NOUMIT IMES EXCEEDED DMAX 20=0 DMAX 20=0 DMAX 20=0 DMAX 20=0 DMAX 20=0 IMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER QUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 5 FACIUT Y I.D. YEAR / MO/ DAY YEAR/MO/DAY STATE CODE NPDES PERMIT #3402003001 BEGINNING 08 1 08 I 01 ENDI 4G 08 I 08 31 06 CA0003751 STATION EFFLUENT 0OIN EFFLUENT D01N EFFLUENT 001N EFFLUENT 00IN EFFLUENT 0OIN EFFLUENT 001N EFFLUENT 001N EFFLUENT 001N ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS MOISTURE TOTKJLDL N AMMONIA(N)

NITRATE (N) TOTPHOSPHS pH OIL& GREASE BORON SMPL TYPE % mgg mo'g mRog frnog pH units nV'kg moEkg FRED. GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLYAVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO UMIT NO UMIT NO U MIT NO U MIT NO U MIT NO U MIT NO U MIT NO U MIT TIMES EXCEEDED TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER OUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 6 FACIUIYI.D.

YEAR/MO/DAY YEARIMO/DAY*" STATE CODE NPDES PERMIT #3 402003001 BEGINNI G 08 / 08 / 01 ENDI Q 08 / 081 3"1, 06 CA00037 1 STATION EFFLUENT O01N EFFLUENT 001 N EFFLUENT 0OIN EFFLUENT 00IN EFFLUENT 001N EFFLUENT 001N EFFLUENT O0iN EFFLUENT O0IN ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS CADMIUM COPPER CHROMIUM LEAD NICKEL MERCURY ZINC VOLUME SMPL TYPE monkg noE n g motg mgoJg mg/g rIAkg tons FREO. GRAB GRAB GRAB GRAB GRAB GRAB GRAB OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHILY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED 10xSTLC=0 1OxSTLC=0 t0xSTLC=0 10OSTLC=0 10xSTLC=0 10xSTLC=0 l0xSTLC=0 TIMES EXCEEDED 10 mg/kg=0 250 mg/kg=0 50 mg/kg=O 50mg/kg=0 200 mgfkg=0 2 mg/kg=0 2500 mg/kg=O TIMES EXCEEDED TTLC>I00=0 nc>2500=0 "TLC>500=0 TTLC>I000=0 TTLC>2000=0 TTLC>20=0 TILC>5000=0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

APPENDIX 4 DIABLO CANYON POWER PLANT Influent and Effluent Monitoring September 2008 CALIFORNIA REGIONAL WATER OUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLOCANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 1 FACILITY I.D. YEAR/MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT I 3 402003001 BEGINNI 4G 08 I 09 I 01 ENDI IG 08 / 09 1 30 06 CA0003'51 STATION INFLUENT EFFLUENT 001 DELTATEMP EFFLUENT 001 INFLUENT EFFLUENT 001 EFFLUENT 001P EFFLUENT 002 ANALYSIS TEMPERATURE TEMPERATURE TEMPERATURE FLOW pH pH pH pH UNITS DEGREES F DEGREES F DEGREES F MGD pH UNITS pH UNITS pH UNITS pH UNITS SMPL TYPE METERED METERED METERED RECORDED GRAB GRAB GRAB GRAB FRED. CONTINUOUS CONTINUOUS CONTINUOUS DAILY MONTHLY MONTHLY I'I MONTHLY MONTHLY"1__"_ 1__ _ __ ___ _ _ _ _ _1 55.9 65.5 9.6 2486 2 57.7 67.6 9,9 2486 3 58.0 67.8 9.8 2486 4 58.0 67.8 9.8 2486 5 57.5 67.5 1(10 2486 6 57.1 70.2 13.1 2486 7 58.0 75.6 17.6 2486 8 57.9 7&,5 186 2486 9 57.7 76.7 190 2486 10 57.6 76.7 19.1 2486 11 57.3 75.9 1816 2486 12 56.6 74.9 18.3 2486 13 56.7 75.1 18.4 2486 14 56.7 75.4 187 2486 15 56.5 75.2 187 2486 2 7.7 2 7.8 16 5S.3 742 189 2486 17 54.5 73.4 189 ......."2486 18 54.6 73.5 189 2486 .8.0 7.9 19 55.5 74.7 192 2486 20 55.6 74.8 192 2486 21 54.8 73.8 190 2486 22 54.4 73.5 191 2486 23 55.3 74.1 188 2486 24 56.8 75.4 18.6 2486 25 56.3 75.4 19.1 2486 26 56.0 74.9 189 2486 27 55.7 74.7 190 2486 28 56.1 75.1 19.0 2486 29 55.9 75.0 191 2486 30 55.6 74.7 19,1 2486 31 1 1 11 1 11 MONTHLYAVG 56.4 73.5 17.1 2486 80 7.9 7.7 7.8 MONTHLYHIGH 58.0 76.7 192 2486 8.0 7.9 7.7 8.0 VONTHLYLOW 54.4 65.5 9.6 2486 8.0 7.9 7.7 7.6 TIMES EXCEEDED NO ULMIT NOUMIT MAX 22 =0 MAX 2760 0 NO U MIT NO U MIT NOLIMIT NO U MIT TIMES EXCEEDED (*°)TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.. ..EXCEPT DURING DEMUSSELING.

DAILY WHEN DISCHARGING CHEMICAL CLEANING WASTES FROM DISCHARGES 001 D, F, I, L, AND/OR M.

CAUFORNIA REGIONAL WATER OUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 2 FACIUTY ID. YEAR / MO /DAY YEAR / MO/ DAY STATE CODE NPDES PERMIT #3 402003001 BEGINNI G 08 / OS 01 ENDI 4G 08 I 09 30 06 CA0003751 STATION EFFLUENT 003 EFFLUENT 004 EFFLUENT 001N EFFLUENT 001P EFFLUENT 003 EFFLUENT 001F EFFLUENT 001 EFFLUENT 001 ANALYSIS pHi pH OIL A GREASE OIL & GREASE OIL & GREASE OIL & GREASE T CHLOR RES CHLORINE USED UNITS pH UNITS pH UNITS AV mof mo1 m9 ug1 Iday SMPL TYPE GRAB GRAB COMPOSITE GRAB GRAB GRAB GRAB. ..) RECORDED FRED. MONTHLY MONTHLY WEEKLY WEEKLY (") WEEKLY I'I MONTHLY 2 per CYCLE MONTHLY 1 26 605 2 14 605 3 17 605 4 19 605 5 3 ND(S) 19 605 6 16 605 7 < 10 605 8 < 10 619 9 10 634 10 3 ND(S) 11 648 11 < 10 662 12 < 10 662 13 13 662 14 10 662 15 7.7 21 667 16 3 ND(S) 33 677 17 52 677 18 7.7 57 677 19 ND(S) 63 677 20 52 677 21 52 677 22 52 641 23 3 ND(S) 57 605 24 43 598 25 38 590 26 36 590 27 39 590 28 33 590 29 25 590 30 23 574 31 L-11 MONTHLY AVG 7.7 7.7 ND(S) NO NO ND(5) 28 629 MONTHLY HIGH 7.7 7.7 ND(S) DISCHARGE DISCHARGE ND(5) 63 677 MONTHLY LOW 7.7 7.7 ND(S) ND(S) 10 574 TIMES EXCEEDED NO UMIT NO UMIT MOAVG 15=0. MOAVG15 =10.. MO AVG 15 = 0 MOAVG 15 0 IMAX200= 0 NOLUMIT.J ' i t * .TIMES EXCEEDED DMAX20 =0 DMAX20= 0 D MAX20= 0 DMAX 20 =0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.WHEN001N IS DISCHARGING TOO01P.WHEN O01P IS DISCHARGING TO 003.CONTINUOUS CHLORINE MONITORING USE D INSTEAD OF GRAB!

CAUFORNIA REGIONAL WATER OUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M) 3 FACIUTY I.D. YEAR / MO / DAY YEAR/ MO DAY STATE CODE NPDES PERMIT I 3 402003001 BEGINNI 4G 08 / 09 / 01 ENDING 08 1 09 / 30 06 CA0003751 STATION EFFOOIN=>003 EFF 001N=-003 EFFLUENT 0011 EFFLUENT 0OlF ANALYSIS TOTLCOLIFORM FECALCOLIFORM SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS MPNIIOOml MPNI100ml mg/i 1st FLTR mglI 2nd FLTR mg/1 NET mg/il sl FLTR moi 2nd FLTR mg/i NET SMPL TYPE GRAB GRAB GRAB GRAB FRED. 4 TIMESIWEEK 4 TIMES/WEEK MONTHLY MONTHLY 1 2 2 2 ND(5)2 3 4 5 6 < 2 ND(5)7 8 9 10 7 7 11 2 2 2 ND(5)12 2 29 2 4 2 25 13 14 15 16 17 2 2.6 2 2 2 6 18 19 20 21 22 23 2 10 2 < 2 2 10 24 25 26 27 28 29 30 31 MONTHLY AVG NO NO " 5 6 MONTHLY HIGH DISCHARGE DISCHARGE 26 6 MONTHLY LOW ND(5) 6 TIMESEXCEEDED 80/o SMPLS>IK MEAN>200=

NOUMIT NOUMIT MOAVG30=0 NOUMIT NOUMIT MOAVG30=0 TIMES EXCEEDED 90 % SMPLS>400 D MAX 100 = 0 D MAX 100 = 0 TIMES EXCEEDED I MAX> 1OK REMARKS: NUMBER OF SAMPLES TAKENDURING THE DAY.FLOW-WEIGHTED AVERAGES REPORTED.

CAUFORNIA REGIONAL WATER OUAULTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUISOBISPO.

CA 93401 PAGE: (M) 4 FACIUTYI.D.

YEAR/MO/DAY YEAR/MO/DAY STATECODE NPDESPERMIT#

3402003001 BEGINNING 08 / 09 / 01 ENDI 4G 08 / 09 / 30 06 CA0003751 STATION EFFLUENT O0IG EFFLUENT 001H ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mgli 1st FLTR mg/1 2nd FLTR mg/i NET mg/i 1st FLTR mg/i 2nd FLTR mg/i NET SMPL TYPE GRAB GRAB FRED. MONTHLY MONTHLY 1 2 2 11 2 3 2 9 3 4 c 2 ND(5)4 5 6 7 8 9 10 11 12 13 14 15 2 ND(5)16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 , .o MONTHLY AVG ND(5) 6 MONTHLYHIGH ND(5 9 MONTHLYLOW ND(5 ND(5)TIMES EXCEEDED NOUMIT NO UMIT MOAVG 30=0 NOLUMIT NO UMIT MO AVG 30=0 TIMES EXCEEDED D MAX 100= 0 D MAX 100 = 0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M) 5 FACILITY ID. YEAR / MO/DAY YEAR /MO/ DAY STATE CODE NPDES PERMIT #3 4020030O1 BEGINNING 08 / 09/ 01 ENDII G 08 / 09 / 30 06 CA0003751 STATION EFFLUENT 0011 EFFLUENT 001J ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mg1 ist FLTR mglI 2nd FLTR mg/I NET mg/I Is FLTR mg/i 2nd FLTR mg/ NET SMPLTYPE GRAB GRAB FRED. MONTHLY MONTHLY 2 2 ND(5)3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLYAVG NO ND(5)MONTHLYHIGH DISCHARGE ND(5)MONTHLY LOW ND(5)TIMES EXCEEDED NO UMIT NO UMIT MOAVG 30 = 0 NOLIMIT NOLIMIT MO AVG 30 =0 TIMES EXCEEDED MAX 100 = 0 MAX 100 = 0 TIMES EXCEEDED REMARKS: R NUMBER OF SAMPLES TAKEN DURING THE DAY:

CAUFORNIA REGIONAL WATER OUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 6 FACIUTY I.D. YEAR I MO/DAY YEAR/MOIDAY STATE CODE NPDES PERMIT #3402003001 BEGINNING 08 / 09 / 01 END IG 08 / 09 / 30 06 CA0003751 STATION EFFLUENT00tK EFFLUENT 001L ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mgiI tst FLTR m9lI 2nd FLTR rr§Il NET moI 1st FLTR mo 1? 2nd FLTR moi NET SMPL TYPE GRAB GRAB FREQ. MONTHLY MONTHLY 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2 < 2 2 ND(5)20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG NO ND(5)MONTHLY HIGH DISCHARGE ND(5)MONTHLY LOW ND(5)TIMES EXCEEDED NO U MIT NO U MIT MO AVG 30 = 0 NO U MIT NOUMIT MO AVG 30 = 0 TIMES EXCEEDED D MAX 100 = 0 DMAX100 = 0 rIMES EXCEEDED REMARKS: ° NUMBER OF SAMPLESTAKEN DURING THE DAY.

CAUFORNIA REGIONALWATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 " AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M) 7 FACIUTY ID. YEAR/MO/DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #3 402003001 BEGINNING 08 1 09 101 END 4G 08 / 09 30 06 CA0003751 STATION EFFLUENT O01M EFFLUENT O0IN EFFLUENT 001P ANALYSIS SUSPENDED SOLIDS SUSPENDED SLDS SUSPENDED SOLIDS UNITS oigll 1stFLTR mg/1 2nd FLTR mg/i NET moll mgil Is/FLTR moi 2nd FLTR mg/1 NET SMPL TYPE GRAB COMPOSITE GRAB FRED. MONTHLY WEEKLY MONTHLY 2 3 4 5 22 6 7 8 9 10 15 11 12 13 14 15 4 < 2 ND(5)16 ND(5)17 18 19 20 21 22 23 42 24 25 26 27 28 29 30 31 MONTHLY AVG NO 20 ND(5)MONTHLYHIGH DISCHARGE 42 ND(5)MONTHLY LOW ND(S) ND(*)TIMES EXCEEDED NOUMIT NOUMIT MOAVG 3O =0 MOAVG60 =0 NOUMIT NO UMIT MOAVG30 =0 TIMES EXCEEDED D MAX 100= 0 D MAX 100 = 0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.,

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROLBOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 8 FACIUTY ID. YEAR I MO / DAY YEAR I MO / DAY STATE CODE NPDES PERMIT #3 402003001 BEGINNING 08 I 09 I 01 END 413 08 / 09 I30 06 CA0003751 STATION EFFLUENT 002 EFFLUENT 003 ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mg/ Ist FLTR mg/l 2nd FLTR nr/I NET mgI 1st FLTR mg/I 2nd FLTR mrg/ NET SMPL TYPE GRAB GRAB FREO. MONTHLY MONTHLY 2 3 4 5 6 7 8 9 10 11 12 13 14 15 2 3 2 < 2 2 ND(5)16 17 18 2 3 2 < 2 2 ND(5)19 20 21 22 23 24 25 26 27 28 29 33 31 MONTHLYAVG ND(5) .,, ND(5)MONTHLY HIGH ND(5) " , ND(5)MONTHLY LOW ND(5) ND(5)rIMESEXCEEDED NO U MIT NO U MIT MO AVG 30 = 0 NO U MIT NO UMIT MO AVG 30 0 IMES EXCEEDED D MAX 100 = 0 D MAX 100 0 IMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M) 9 FACILITY I.D. YEAR / MO / DAY YEAR / MO/DAY STATE CODE NPDES PERMIT #3402003001 BEGINNING 08 / 09 / 01 ENDI G 08 / 09 I 30 06 CA00037 1 STATION EFFLUENT 003 EFFLUENT 00IN EFFLUENT 001 EFFLUENT 001 EFFLUENT 001 EFFLUENT001 ANALYSIS SUSPENDED SOLIDS SETTL SOLIDS T CHROMIUM COPPER NICKEL ZINC UNITS mog' lsl FLTR mg/I 2nd FLTR mg/1 NET myl ug/1 ug/p uti ugh SMPLTYPE GRAB GRAB GRAB GRAB GRAB GRAB FREO. WEEKLY WHEN 001N 001P 003 WEEKLY. MONTHLY MONTHLY MONTHLY MONTHLY 1 2 3 4 5 ND(O.1)6 7 8 9 10 ND(0.1)11 12 13 14 15 16 ND(0.1)17 18 ND(10) ND(10) ND(10) ND(10)19 20 21 22 23 ND(O.1)24 25 26 27 28 29 30 31 MONTHLY AVG NO ND(O.1) ND(10) ND(10) ND(10) ND(10)MONTHLY HIGH DISCHARGE ND(0.1) ND(10) ND(10) ND(10) ND(10)MONTHLY LOW ND(O.1) ND(10) ND(10) ND(10) ND(10)TIMES EXCEEDED NO LIMIT NO LIMIT MO AVG 30 = 0 MO AVG 1.0 = 0 6M-MED 10 =0 6M-MED 10 =0 6M-MED 30 =0 6M-MED 70--0 TIMESEXCEEDED DMAX100 = 0 DMAX3.0 = 0 DMAX40 = 0 DMAXSO = 0 DMAX100 = 0 DMAX380 = 0 IMES EXCEEDED I MAX 100= 0 IMAX140=0 I MAX 260=0 IMAX 990= 0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (0) 1 FACILITY I.D, YEAR / MO / DAY YEAR/MO/DAY STATE CODE NPDES PERMIT #3 402003001 BEGINNING 08 / 09 / 01 ENDI 4G 08 / 09 f 30 06 CA0003751 STATION INFLUENT INFLUENT INFLUENT INFLUENT EFFLUENT001 EFFLUENT O01D EFFLUENT O0IG EFFLUENT 001H ANALYSIS T CHROMIUM COPPER NICKEL AMMONIA(N)

AMMONIA(N)

OIL & GREASE OIL& GREASE OIL & GREASE UNITS u9/1 uG/I ugfl u91 ojIV mom1 mog/ rag/1 SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FRED. JWAP/JULtOCT JAP/'JL.JOCT JA/AP/JUL/OCT JNAPIJUL/OCT JNAP/JUL/OCT JAPIJUL/OCT JNAP/JUUOCT JWAP/JUIJOCT 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 ND(10) ND(10) ND(10)19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG ND(10) ND(10) ND(10)MONTHLY HIGH ND(10) ND(10) ND(10)MONTHLY LOW ND(1O) ND(10) ND(10)TIMES EXCEEDED NO LIMIT NO LIMIT NO LIMIT NO LIMIT 6M-MED 306=0 MO AVG 15 =0 MO AVG 15 0 MO AVG 15 0 TIMES EXCEEDED DMAX12240

= 0 DMAX20 = 0 DMAX20 = 0 DMAX20 = 0 TIMES EXCEEDED I MAX 30600 = 0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.FLOW-WEIGHTED AVERAGE RESULT REPORTED.

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT. PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 B95 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 2 FACILITY I.D. YEAR / MOI DAY YEAR / MO I DAY STATE CODE NPDES PERMIT #3402003001 BEGINNI 4G 08 / 09 /01 ENDI G 08 / 09 /30 06 CA0003751 STATION EFFLUENT 0011 EFFLUENT 001J EFFLUENT 001K EFFLUENT O01L EFFLUENT 001M EFFLUENT 001P EFFLUENT 002 EFFLUENT 003 ANALYSIS OIL & GREASE OIL & GREASE OIL & GREASE OIL & GREASE OIL & GREASE OIL& GREASE OIL & GREASE OIL & GREASE UNITS mg/i mgoi mg/i fiv1 ,'.:mg/1 mg/I mgil mgo SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. JANAP/JUUOCT JA/APIJUUOCT JWAPIJUOCT JNAP/JUIJOCT JNAP/JULJOCT WAPIJLUUOCT JNAP/JUL/OCT JAP/JULJOCT 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMESEXCEEDED MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15 0 MOAVG15=0 TIMES EXCEEDED DMAX20 = 0 DMAX20 = 0 DMAX20 = 0 DMAX20 = 0 D MAX20 = 0 D MAX 20 = 0 D MAX20 = 0 DMAX20 = 0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

3ALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.SONTROL BOARD DIABLO CANYONNUCLEAR POWER PLANT AENTRALCOAST REGION POTBOXC56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401' PAGE: (0) 3 FACILITY I.D. YEAR / MO / DAY YEAR / MO / D)AY! STATE CODE NPDES PERMIT #3 402003001 BEGINNIGQ 08 / 09 I01 ENDI 4IG 08 / 09 i/30 06 CA0003751 STATION EFFLUENT 004 EFFLUENT 001 EFFLUENT 001D EFFLUENT 001H EFFLUENT 0011L EFFLUENT0O01F ANALYSIS OIL & GREASE TOX CONCEN CADMIUM CADMIUM CADMIUM CADMIUM UNITS rag/1 TU uglt uov1 uol1 U911 SMPL TYPE GRAB GRAB QTRLY COMP QTRLY COMP QTRLY COMP I WEEK COMP FREQ. JNAPIJUL/OCT JNAP/JUL/OCT JVAPIJUL/OCT WAP/JU1/OCT JNAPIJULUOCT JAVAP/JU/OCT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLYLOW TIMES EXCEEDED MO AVG 15 = 0 NO LIMIT NO LIMIT NO LIMIT NO LIMIT TIMES EXCEEDED DMAX20 = 0 TIMES EXCEEDED 6M-MED 0.26=0 REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 4 FACILITY I.D. YEAR / MO / DAY YEAR / MO.] DAY STATE CODE NPDES PERMIT #3 402003001 BEGINNI 4G 08 / 09 I 01 ENDI 4G ' 08 / 09 30 06 CA00037 1 STATION EFFLUENT 0010 EFFLUENT 001H EFFLUENT 001L EFFLUENTO01F'-

EFFLUENT CO0D EFFLUENT 001H EFFLUENT 001L EFFLUENT O01F ANALYSIS CHROMIUM T CHROMIUM T CHROMIUM T CHROMIUM COPPER COPPER COPPER COPPER UNITS ug/1 ugl us/1 ug/1 ug91 u911 ug/1 ugh SMPL TYPE OTRLY COMP DTRLY COMP DTRLY COMP 1 WEEKCOMP QTRLY COMP DTRLY COMP DTRLY COMP i WEEK COMP FRED. JNAP/JUL/OCT JWNAP/JUU/OCT JNAPIJULJOCT JWJAP/JUUOCT JNAP/JULWOCT JNAP/JUUOCT JAWAPIJULJOCT JNAPIJUIJOCT 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.ONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT ENTRALCOAST REGION PO BOX 56 95 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 ANLUIS OBISPO. CA 93401 PAGE: (0) 5 FACILITY I.D. YEAR / MO / DAY YEAR I MO/ DAY STATE CODE NPDES PERMIT #3 402003001 BEGINNING OB I 09 / 01 END] 4G 08 I 09 1 30 06 CA00037 51 STATION EFFLUENT 00ID EFFLUENT 001H EFFLUENT 001L EFFLUENT O0IF EFFLUENT 001D EFFLUENT 001H EFFLUENT 001L EFFLUENT 001F ANALYSIS LEAD LEAD LEAD LEAD MERCURY MERCURY MERCURY MERCURY UNITS 9g/I u911u ug/ u911 ug/1 ug(h ug9t ug/l SMPL TYPE DTRLY COMP DTRLY COMP DTRLY COMP 1 WEEK COMP DTRLY COMP QTRLY COMP DTRLY COMP I WEEK COMP FRED. JWAPIJUUOCT JNAPIJUUOCT JAP/JUL/OCT JAWAPIJUUOCT JNAPIJUIJOCT JAJAPIJUlJOCT JNAP/JUL/OCT JA/IJUJOCT 2 3 4 S 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MDONHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT*TIMES EXCEEDED TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVI.A BEACH, CALIF 93424 SANLUISOBISPO.

CA 93401 PAGE: (0) 6 FACILITY I.D. YEAR/ MO/ DAY YEAR / MO / DAY STATECODE NPDES PERMIT #3 402003001 BEGINNI G 08 / 09 / 01 ENDI G 08 / 09 30 06 CA00037 1 STATION EFFLUENT 0010 EFFLUENTOOIH EFFLUENT 001L EFFLUENT 01iF EFFLUENT 001D EFFLUENT 001H EFFLUENT 0OIL EFFLUENT DOIF ANALYSIS NICKEL NICKEL NICKEL NICKEL SILVER SILVER SILVER SILVER UNITS ul/1 ugil ug'i uo'l u911 ugh1 ugth ugli SMPL TYPE OTRLY COMP OTRLY COMP GTRLY COMP I WEEKCOMP OTRLY COMP QTRLY COMP OTRLY COMP 1 WEEK COMP FREO. JWAPIJUL/OCT JAPIJUUOCT JAAPIJUL/OCT JA/AP/JUUOCT JANAP/JUL/OCT JANAPIJUL/OCT WAP/JUUOCT JNVAP/JUI/OCT 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY:

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (0) 7 FACILITY I.D. YEAR / MO / DAY YEAR / MO I DAY STATE CODE NPDES PERMIT #3 402003001 BEGINNI G 08 / 09 / 01 ENDI 4G 08 I 09 1/30 06 CA0003751 STATION EFFLUENT001D EFFLUENT O0tH EFFLUENT 001L EFFLUENT OO1F ANALYSIS ZINC ZINC ZINC ZINC UNITS ug/1 ugh ug ug/l SMPL TYPE OTRLY COMP OTRLY COMP OTRLY COMP I WEEKCOMP FRED. JNAP/JUUOCT JA/APIJUL/OCT JNAPIJLJOCT JWAPIJUUOCT 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTILY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO LIMIT NO LIMIT NO LIMIT NO LIMIT IMES EXCEEDED IMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (0) 8 FACILITY I.D. YEAR / MOI DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #3402003001 BEGINN 4G 08 / 09 / 01 END G 08 / 09 f30 06 CA0003751 STATION EFFLUENT 001D EFFLUENT 001F EFFLUENT 0011 EFFLUENT DOIL EFFLUENT 00 IM ANALYSIS COPPER COPPER COPPER COPPER COPPER UNITS moil m9/1 mr/I mg/l mgil SMPL TYPE 24-HRCOMP.

24-HR COMP. 24-HR COMP. 24-HRCOMP.

24-HR COMP.FREO. METAL CLNG METAL CLNG METAL CLNG METAL CLNG METAL CLNG 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLYAVG NO NO NO NO NO MONTHLY HIGH DISCHARGE DISCHARGE DISCHARGE DISCHARGE DISCHARGE MONTHLY LOW TIMES EXCEEDED MO AVG 1 = 0 MO AVG 1 = 0 MO AVG 1 =0 MO AVG I = 0 MO AVG 1 = 0 IMES EXCEEDED D MAX I = 0 D MAX 1 = 0 DMAX1 =0 DMAX1 =0 DMAX1 =0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALF 93424 SANLUIS OBISPO. CA 93401 PAGE: (0) 9 FACILITY I.D. YEAR/MO/DAY YEAR/MO/DAY STATE CODE NPDES PERMIT #3 402003001 BEGINNI 4G 08 / 09 01 END G 08/ 109 30 06 CA0003751 STATION EFFLUENT 001D EFFLUENT 001F EFFLUENT 0011 EFFLUENT 001L EFFLUENT 0OIM ANALYSIS IRON IRON IRON IRON IRON UNITS mg/I mg/i rg/I mW/W mt/i SMPL TYPE 24.HR COMP. 24.HR COMP. 24-HR COMP. 24-HR COMP. 24-HR COMP.FREQ. METAL CLNG METAL CLNG METAL CLNG METAL CLNG METAL CLNG 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG NO NO NO NO NO MONTHLY HIGH DISCHARGE DISCHARGE DISCHARGE DISCHARGE DISCHARGE MONTIHLY LOW TIMES EXCEEDED MOAVG 1 =0 MOAVG 1 = 0 MOAVG 1 =0 MOAVG 1 =0 MOAVG 1 = 0 TIMES EXCEEDED DMAX1 =0 DMAX1 =0 DOMAX1 =0 DMAX1 =0 DMAXI =0 TIMES EXCEEDED REMARKS: R NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 1 FACILITY I.D. YEAR / MO/ DAY YEAR / MOI DAY STATE CODE NPDES PERMIT #3 402003001 BEGINNI 4G 08 I 09 / 01 ENDING 08 / 09 30 06 CA0003751 STATION EFFLUENT 001 INFLUENT EFFLUENT INFLUENT EFFLUENTO01 INFLUENT EFFLUENT 001 INFLUENT ANALYSIS TITANIUM ARSENIC ARSENIC CADMIUM CADMIUM LEAD LEAD ZINC UNITS ug/1 ug/l ugi1 ug/1 ug/1 ug/1 ug91 ugv1 SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREG. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2 3 4 5 6 7 9 10 11 12 13 14 15 16 17 18 ND(10)19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG ND(10)MONTHLY HIGH ND(10)MONTHLY LOW ND(10)TIMES EXCEEDED NO LIMIT NO LIMIT 6M-MED 30= 0 .. 6M-MED 10 0 NO LIMIT 6M-MED 10 =0 NO LIMIT TIMES EXCEEDED D MAX 150 =0 D MAX20 = 0 DMAX40 = 0 TIMES EXCEEDED I MAX 400 = 0 I MAX 50 -0 1 MAX 100 =0 REMARKS: 'NUMBER OF SAMPLES TAKEN DURING THE DAY.-INFLUENT ANALYSIS PERFORMED FOR COMPARISON TO EFFLUENTS.

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 B95 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 2 FACILT' I.D. YEAR / MO / DAY YEAR / MO/ DAY STATE CODE NPDES PERMIT I 3402003001 BEGINNIN G 08 / 09/ 01 ENDI 4G 08 / 09 30 06 CA00037 1 STATION INFLUENT EFFLUENT 001 INFLUENT EFFLUENT 001 INFLUENT EFFLUENT 001 INFLUENT EFFLUENT 001 ANALYSIS MERCURY MERCURY SILVER SILVER CYANIDE CYANIDE PHENOLIC CMP PHENOLIC CMP UNITS uG/1 ug/l u , 1 .ugv1 uwl ugI1 ugT/ (NONCL) ugtll (NONCL)SIWt. TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FRED. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLYLOW TIMES EXCEEDED NO LIMIT 6M-MED 0.2=0 NO LIMIT 6M-MED 2.9=0 NO LIMIT 6M-MED 30=-0 NO LIMIT 6M-MED 150=-0 TrIES EXCEEDED DMAX 0.8 = 0 DMAX 13.6=0 DMAX 100=0 DMAX 610= 0 TIMES EXCEEDED [MAX 2 = 0 IMAX 35= 0 IMAX 260=0 IMAX 1530=-0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

", .,,t * *.. I , .CALFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 3 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #3402003001 BEGINNING 08 / 09 I 01 ENDING 08 / 09 I 30 06 CAO0037rhi STATION INFLUENT EFFLUENT001 EFFLUENT 001D EFFLUENT 001D EFFLUENT001D EFFLUENT 005 EFFLUENT 008 ANALYSIS CHLOR PHENOL CHLORPHENOL LITHIUM BORON HYDRAZINE OIL & GREASE O8. & GREASE UNITS ugh ugP mg/1 mgoi m/I MOg/M mg/SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREO. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO LIMIT 6M-MED 10=0 NO LIMIT NO LIMIT., NO.LIMIT MO AVG 15=0 MO AVG 15 TIMES EXCEEDED DMAX 20=0 DMAX 20=0 DMAX 20=0 TIMES EXCEEDED IMAX 50=-0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRALCOAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SA N LUIS OBISPO. CA 93401 PAGE: (A) 4 FACILITY I.D. YEAR / MO / DAY YEAR / MG /DAY STATE CODE NPDES PERMIT #3402003001 BEGINNI 4G 08 / 09 01 END 4G 08 / 09 30 06 CA0003I STATION EFFLUENT 009 EFFLUENT 013 EFFLUENT 015 EFFLUENT 016 EFFLUENT 017 INFLUENT EFFLUENT001 ANALYSIS OIL 8 GREASE OIL& GREASE OIL & GREASE OIL0,GREASE' OIL & GREASE PCBIS PCB'S UNITS ngt mol1 mogl mol/1 mol1 ugh ug 1 h SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FRED. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 " 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED MO AVG 15=0 MO AVG 15=0 MO AVG 15=0 MO AVG 15=0 MO AVG 15=0 NO LIMIT NO LIMIT TIMES EXCEEDED DMAX 20=0 DMAX 20=0 DMAX 20=0 DMAX 20=-0 DMAX20--O IMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRALCOAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 ANLUISOBISPO.

CA 93401 PAGE: (A) 5 FACILITY I.D. YEAR I MO/DAY YEAR I MO I DAY STATE CODE NPDES PERMIT #3 402003001 BEGINNING 08 I 09 / 01 ENDI 4G 08 / 09 I 30 06 CAO003751 STATION EFFLUENT ODIN EFFLUENT 00IN EFFLUENT 0OIN EFFLUENT 00IN EFFLUENT 0IN EFFLUENT 0O0N EFFLUENT 00iN EFFLUENT OIN ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS MOISTURE TOT KJLDL N AMMONIA(N)

NITRATE IN) TOT PHOSPHS pH OIL & GREASE BORON SMPL TYPE % m09 mg/kg fro/g mogyg pH units mp/Eg m/oEg FRED. GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION POBOX56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (A) 6 FACILITY I.D. YEAR/MO/DAY YEAR/MO/DAY STATE CODE NPDES PERMIT #3402003001 BEGINNI 4G 08 / 09 / 01 ENDING 08 / 09 30 06 CA0003751 STATION EFFLUENT OOIN EFFLUENT 001 N EFFLUENT OIN EFFLUENT O0iN EFFLUENT ODIN EFFLUENT OIN EFFLUENT 0OIN EFFLUENT OIN ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS CADMIUM COPPER CHROMIUM LEAD NICKEL MERCURY ZINC VOLUME SMPL TYPE rnmg/I mO/G mglkg m0g rgA mg tons FREO. GRAB GRAB GRAB GRAB GRAB GRAB GRAB OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW " * ,* -TIMES EXCEEDED 10xSTLC=0 10xSTLC=O 10xSTLC=0 10xSTLC=0 10xSTLC=O 10xSTLC=0 10xSTLC=0 IMES EXCEEDED 10 mg/kg=O 250 mgfkg=O 50 mg/kg-0 50 mgfkg=0 200 mg/kg=O 2 mgtig=0 2500 mg/kg'0 IMES EXCEEDED TTLC>100=-0 TTLC>2500=0 TTLC>500-0 TTLC>1000=0 TTLC>2000=0 TTLC>20=0 TTLC>5000=0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

APPENDIX 5 DIABLO CANYON POWER PLANT Acute Bioassay July 23-27, 2008

! I-\QUATIC! BIOASSAY &CONSULTING LABORATORIES.

INC.TOXICITY TESTING

OCEANOGRAPHIC RESEARCH July 28, 2008 Ms. Vicki Ziegler FGL Environmiental 853 Corporation Street Santa Paula, CA 93060

Dear Ms. Ziegler:

We are pleased to present the enclosed bioassay report. The test was conducted under guidelines prescribed in Guidelines for Performing Static Acute Fish Bioassays in Municipal and Industrial Waste Waters as provided to us by Frederic R. Kopperdahl, Fish and Wildlife Water Pollution Control Laboratory, Department of Fish and Game.Results were as follows: CLIENT: FGL Environmental SAMPLE I.D.: Discharge 00 1 Acdte Toxicity DATE RECEIVED:

23 July -08 ABC LAB. NO.: FGL0708.247 ACUTE ABALONE SURVIVAL BIOASSAY LC50 = 100 % Survival in 100 % Sample TUa = 0.00 Yours very truly, Thomas (Tim) Mikel Laboratory Director 29 NORTH OLIVE STREET, VENTURA, CA 93001 * (805) 643-5621

-96 Hr Survival Start Date: 712312008 Test ID: FGL0708247 Sample ID: CAOOOOOOO End Date: 7/27/2008 Lab ID: CAABC Sample Type: EFF3-Power Plant Sample Date: 7/23/2008 Protocol:

KOP 76-Kopperdahl

.Test Species: HR-Haliotis rufescens Comments:

Discharge 001 Acute (808001)Conc-% 1 2 N Control 1.0000 1.0000 100 1.0000 1.0000 Transform:

Arcsin Square Root Isotonic Conc-% Mean N-Mean Mean Min Max CV% N Mean N-Mean N Control 1.0000 1.0000 1.4588 1.4588 1.4588 0.000 2 1,0000 1,0000 100 1.0000 1.0000 1.4588 1.4588 1.4588 0.000 2 1.0000 1.0000 Auxiliary Tests Statistic Critical Skew Kurt Normality of the data set cannot be confirmed Equality of variance cannot be confirmed

' ,.Linear Interpolation (200 Resamples)

Point % SD 95% CL(Exp) Skew IC05 IC 10 IC15 IC20 IC25 IC40 IC50>100>100>100>100>100>100>100 1 [)1~I 1)0.9*0.8 0.7 0.6 C 00.5 0.4 0.3.0.2 0.1 0.0.......0 ....0 50 100 150 Dose %Page 1 ToxCalc v5.0.23 Reviewed by:&"\"Z

-96 Hr Survival Start Date: 7/23/2008 Test ID: FGL0708247

' _ Sample ID: CAOOOOO0O End Date: 7/27/2008 Lab ID: CAABC. Sample Type: EFF3-Power Plant Sample Date: 7/23/2008 Protocol:

KOP 76-Kopperdahl Test Species: HR-Haliotis rufescens Comments:

Discharge 001 Acute (808001)Dose-Response Plot 1 '0.9 0.8 0.7 0.6 CO) 0.5" 0.4 0.3 0.2.0.1 ()4.0 z 0 Page 2 ToxCalc v5.0.23 Reviewed by: 1"ý2k

.a -96 Hr Survival Start Date: 7/23/2008 Test ID: FGL0708247 Sample ID: CAOOOOOOO End Date: 7/27/2008 Lab ID: CAABC Sample Type: EFF3-Power Plant Sample Date: 7/23/2008 Protocol:

KOP 76-Kopperdahl Test Species: HR-Haliotis rufescens Comments:

Discharge 001 Acute (808001)Conc-% Parameter N Control Temp C 100 N Control pH 100 N Control DO mg/L 100 N Control Salinity ppt 100 N Control 100 N Control 100 Auxiliary Data Summary Mean Min Max SD CV% N 14.22 13.80 15.50 0.68 5.80 10 13.71 13.40 14.00 0.26 3.72 10 7.62 7.50 7.70 0.06 3.30 10 7.71 7.70 7.80 0.03 2.31 10 7.27 7.00 7.60 0.19 6.07 10 7.56 7.30 8.00 0.25 6.56 10 34.00 34.00 34.00 0.00 0.00 10 34.00 34.00 34.00 0.00 0.00 10 0.00 0.00 0.00 0.00 0 0.00 0.00 0.00 0.00 0 0.00 0.00 0.00 0.00 0 0.00 0.00 0.00 0.00 0 ,. ... .. .. .. .. ;Page 3 ToxCalc v5.0.23 Reviewed by; ,,.

ENVIRONMENTAL www.fglinc.com CHAIN OF CUSTODY ORIGINAL AND ANALYSIS REQUEST DOCUMENT IC IEN DEAL SETOII REOR INORATO SECIO II I Client: P-.C:.-(;_.

E4/b.-1 C.0 New Customer Customer Number-: Address: f. o, 3 X. S-4 I I Purchase order/contract/FGL quote number: _Pre Log Required:

yes -Monthly 13 Weekly 0 Quarterly 0 Other 0 REAK SECIO V I I CORPORATE OFFICE & LABORATORY P.O. Box 272/853 Corporation Street Santa Paula. CA 93061-0272 TcI (805) 392-2000 FAX; (805) 525-4172 0ISTD SECINV Red d SubWta c to the ten. S aod onditioto on the..e .fthis docmateolt:

Relinquished__y_._

_ Date b-Dae Relinquished by. -Date -Time R eved by: Date Tienc _ Received by: Date Time OFIC LAO1Oý_ ...F-DOFC 2500 Stagecoach Road Stocton, CA 952.5 Tek (209) 942-0182 FAX- (209) 942-0423 563 E. Lindo Avenue Chico, CA 95926 Te: (530) 343-5818 FAX: (530) 343-3807 Visalia. Cahifornia Tek (559) 734-9473 Mobile: (559) 737-2399 FAX (559) 734-8435 APPENDIX 6 DIABLO CANYON POWER PLANT Chronic Bioassay July 24-26, .Q.O,.08 i -BIOASSAY

&, C;ONSULTING LABORATORIES, INC.TOXICITY TESTING e OCEANOGRAPHIC RESEARCH July 28, 2008 Ms. Vicki Ziegler FGL Environmental 853 Corporation Street Santa Paula, CA 93060

Dear Ms. Ziegler:

We are pleased, to present the enclosed bioassay report. The test was conducted under guidelines prescribed in Short-Term Methods for Measuring the Chronic Toxiciot of Effluents and Receiving Waters to West Coast Marine and Estuarine Organisms, EPA-R-95/136. Results were as follows: CLIENT: SAMPLE I.D.: DATE RECEIVED: ABC LAB. NO.: FGL Environmental Discharge 001 Chronic Toxicity 23 July -08 FGL0708.248 CHRONIC ABALONE LARVAL DEVELOPMENT BIOASSAY NOEC = 100.00 %TUc = 1.00 IC25 = >100.00 %IC50 = >100.00%Yours very truly, Thomas (Tim) Mikel Laboratory Director 29 NORTH OLIVE STREET, VENTURA, CA 93001 * (805) 643-5621 Abalone Larval Development Test-Proportion Normal Start Date: 7/24/2008 Test ID: FGL0708248 Sample ID: CAOOOOOOO End Date: 7/26/2008 Lab ID: CAABC Sample Type: EFF1-POTW Sample Date: 7/23/2008 Protocol:

EPA600/R95/136 1995 Test Species: HR-Haliotis rufescens Comments:

Discharge 001 Chronic Toxicity (808001)Conc-% 1 2 3 4 5 N Control 1.0000 1.0000 1.0000 1.0000 1.0000 10 1.0000 1.0000 1.0000 1.0000 1.0000 18 1.0000 1.0000 1.0000 1.0000 1.0000 32 1.0000 1.0000 1.0000 1.0000 1.0000 56 1.0000 1.0000 1.0000 1.0000 1.0000 100 0.9900 1.0000 1.0000 1.0000 1.0000 Transform:

Arcsin. Square Root Rank 1-Tailed Isotonic Conc-% Mean N-Mean Mean Min Max CV% N Sum Critical Mean N-Mean N Control 1.0000 1.0000 1.5208 1.5208 1.5208 0.000 5 1.0000 1.0000 10 1.0000 1.0000 1.5208 1.5208 1.5208 .0.000 5 27.50 16.00 1.0000 1.0000 18 1.0000 1.0000 1.5208 1.5208 1.5208 0.000 5 27.50 16.00 1.0000 1.0000 32 1.0000 1.0000 1.5208 1.5208 1.5208 0.000 5 27.50 16.00 1.0000 1.0000 56 1.0000 1.0000 1.5208 1.5208 1.5208 0.000 5 27.50 16.00 1.0000 1.0000 100 0.9980 0.9980 1.5107 1.4706 1.5208 1.484 5 25.00 16.00 0.9980 0.9980 Auxiliary Tests Statistic Critical Skew Kurt Shapiro-Wilk's Test indicates non-normal distribution (p <= 0.01) 0.41613 0.9 -3.8705 19.8512 Equality of variance cannot be confirmed Hypothesis Test (1-tail, 0.05) NOEC LOEC ChV TU Steel's Many-One Rank Test 100 >100 1 Treatments vs N Control Linear Interpolation (200 Resamples)

Point % SD 95%CL(Exp) Skew IC05 IC10 IC15 IC20 IC25 IC40 IC50>100>100>100>100>100>100>100 1.0 0.9.0.8.0.7.a0.6 00.5.904-0.3 0.2-0.1 n .0 50 100 150 Dose %Page 1 ToxCalc v5.0.23 Reviewed by: L--\-

Abalone Larval Development Test-Proportion Normal Start Date: 7/24/2008 Test ID: FGL0708248 Sample ID: CA00OOQOO End Date: 7/26/2008 Lab ID: CAABC Sample Type: EFF1-POTW Sample Date: 7/23/2008 Protocol:

EPA600/R95/136 1995 Test Species: HR-Haliotis rufescens Comments:

Discharge 001 Chronic Toxicity (808001)'.

Dose-Response Plot 1 0.9 0.8* 0.7 00.6 e- 0.50.4 2 0.3 0.2 0.1 0, z 0 w I~IL ILO 0 0 C:>.Page 2 ToxCalc v5.0.23 Reviewed by:_L--\,.

Abalone Larval Development Test-Proportion Normal Start Date: 7/24/2008 Test ID: FGL0708248 Sample ID:, CAOOOOOOO End Date: 7/26/2008 Lab ID: CAABC Sample Type: EFF1-POTW Sample Date: 7/23/2008 Protocol:

EPA600/R95/136 1995 Test Species: HR-Haliotis rufescens Comments:

Discharge 001 Chronic Toxicity (808001)Auxiliary Data Summary Conc-% Parameter N Control Temp C 10 18 32 56 100 N Control pH 10 18 32 56 100 N Control DO mg/L 10 18 32 56 100 N Control Salinity ppt 10 18 32 56 100 Mean Min 15.05 15.00 15.05 15.00 15.05 15.00 15.05 15.00 15.05 15.00 15.05 15.00 7.85 7.80 7.85 .,7.80 7.85 117.80 7.85 7.80 7.85 7.80 7.85 7.80 5.65 4.90 5.95 5.00 5.95 5.00 5.95 5.00 5.95 5.00 6.00 5.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 Max 15.10 15,10 15.10 15.10 15,10 15.10 7.90 7.90 7.90 7.90 7.90 7.90 6.40 6.90 6.90 6.90 6.90 7.00 34.00 34.00 34.00 34.00 34.00 34.00 SD 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 1.06 1.34 1.34 1.34 1.34 1.41 0.00 0.00 0.00 0.00 0.00 0.00 CV% N 1.77 2 1.77 2 1.77 2 1.77 2 1.77 2 1.77 2 3.39 2 3.39 2 3.39 2 3.39 2 3.39 2 3.39 2 18.23 2 19.48 2 19.48 2 19.48 2 19.48 2 19.82 2 0.00 2 0.00 2 0.00 2 0.00 2 0.00 2 0.00 2 Page 3 ToxCalc v5.0.23 Reviewed by:_

Subcontract Chain of Custody CLIENT DETAILS: Client: FGL Environmental Address: 853 Corporation Street Santa Paula, CA 93061 Phone: (805)659-0910 Fax: (805) 525-4172 Project: D Contact Person: REPORT INFORMATION:

Rush Analysis:

C3 5 days C3 4 days C] 3 days E3 2 days C3 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months i Electronic Data Transfer:

YES / NO If yes, To: State Client Other'I -I -'I' -r y I I I' r SAMPLING:-o 0 K E 0 U C.I-0 U r U U;Qj C 0 L-E z 0..0 z ,U (L-~0 EnJ cj~(/2 U wJ 0 (/2 0 (/2 (/2 en 0 ri~0+Z " 0-go 0. -V-r-C/)w I-C/)cy ol)Cl z-1~-c A U-7.-4-(2._+.-Y ¶ I Sample Nulmber Locafion/Description Date Sampled Time Sampled_ _ _ _ _ _ _ _ __ _ (I____ C-- f~ to fL ckk XI ______ ~~ j~\T _ ____-_________

__ E IIII .I C- .- -)

1A'QUATIC BI?0ASSAY

&NSULTING LABORATORIES, INC.TOXICITY TESTING

OCEANOGRAPHIC RESEARCH CHRONIC ABALONE DEVELOPMENT BIOASSAY DATE: 24 July- 08 STANDARD TOXICANT:

Zinc Sulfate NOEC =IC25 =IC50 =32.00 ug/l 63.42 ug/l 75.61 ug/l Yours very truly, Thomas (Tim) Mikel Laboratory Director 29 NORTH OLIVE STREET, VENTURA, CA 93001 * (805) 643-5621 Start Date: 712412008 End Date: 7/26/2008 Sample Date: 7/24/2008 Comments:

Standard Toxicant Abalone Larval Development Test-Proportion Normal Test ID: ABS072408 Sample ID: REF-Ref Toxicant Lab ID: ABC LABS Sample Type: ZNSO-Zinc sulfate Protocol:

EPA600/R95/136 1995 Test Species: HR-Haliotis rufescens Conc-ug/L 1 2 3 4 .5 Control 1.0000 1.0000 1.0000 1.0000 1:0000 18 1.0000 1.0000 1.0000 1.0000 0.9700 32 0.9900 1.0000 1.0000 1.0000 1.0000 56 0.9600 0.9100 0.8700 0.9500 0.8200 100 0.0000 0.0000 0.0000 0.0000 0.0000 180 0.0000 0.0000 0.0000 0.0000 0.0000 Transform:

Arcsln Square Root Rank 1-Tailed Isotonic Mean N-Mean Mean Min Max CV% N Sum Critical Mean N-Mean Control 1.0000 1.0000 1.5208 1.5208 1.5208 0.000 5 1.0000 1.0000 18 0.9940 0.9940 1.4960 1.3967 1.5208 3.709 5 25.00 17.00 0.9960 0.9960 32 0.9980 0.9980 1.5107 1.4706 1.5208 1.484 5 25.00 17.00 0.9960 0.9960*56 0.9020 0.9020 1.2631 1.1326 1.3694 7.801 5 15.00 17.00 0.9020 0.9020 100 0.0000 0.0000 0.0500 0.0500 0.0500 0.000 5 0.0000 0.0000 180 0.0000 0.0000 0.0500 0.0500 0.0500 0.000 5 0.0000 0.0000 Auxiliary Tests Statistic Critical Skew Kurt Shapiro-Wilk's Test indicates normal distribution (p > 0.01) 0.87523 0.868 -0.6585 1.79763 Equality of variance cannot be confirmed Hypothesis Test (1-tail, 0.05) NOEC LOEC ChV TU Steel's Many-One Rank Test 32 56 42.332 Treatments vs Control Point IC05 IC110 IC15 IC20 IC25 IC40 IC50 ug/L 43.745 56.098 58.537 60.976 63.415 70.732 75.610 Linear Interpolation (200 Resamples)

SD 95% CL(Exp) Skew 3.463 38.502 59.249 1.2022 2.568 45.300 59.161 -0.9534 1.010 55.347 61.429 -0.1833 1.0-0.944 57.974 63.698 -0.1335 0.885 60.600 65.967 -0.1335 0.9 0.708 68.480 72.774 -0.1335 0.8]0.590 73.734 77.311 -0.1335 0.71 (D 0.6 LO= 0.5) 0.4 0.3 0.2 0.1 0.0 0 50 100 Dose ug/L 150 200 Page 1 ToxCalc v5.0.23 Reviewed by:

Abalone Larval Development Test-Proportion Normal Start Date: 7/24/2008 Test ID: ABS072408 Sample ID: REF-Ref Toxicant End Date: 7/26/2008 Lab ID: ABC LABS Sample Type: ZNSO-Zinc sulfate Sample Date: 7/24/2008 Protocol:

EPA600/R95/136 1995 Test Species: HR-Haliotis rufescens Comments:

Standard Toxicant Dose-Response Plot 0.9 0.80.7 o 0.6 0 0.5 o 0.4 2 CL 0.3 0.2 0.1 0 N to 0 0 2 C Page 2 ToxCalc v5.0.23 Reviewed by:

Abalone Larval Development Test-Proportion Normal Start Date: 7/24/2008 Test ID: ABS072408 Sample ID: REF-Ref Toxicant End Date: 7/26/2008 Lab ID: ABC LABS Sample Type: ZNSO-Zinc sulfate Sample Date: 7/24/2008 Protocol:

EPA600/R95/136 1995 Test Species: HR-Haliotis rufescens Comments:

Standard Toxicant Auxiliary Data Summary Parameter Mean Min Max SD CV% N Control Temp C 18 32 56 100 180 Control pH 18 32 56 100 180 Control DO mg/L 18 32 56 100 180 Control Salinity ppt 18 32 56 100 180 15.05 15.00 15.05 15.00 15.05 15.00 15.05 15.00 15.05 15.00 15.05 15.00 7.85 7.80 7.85 7.80 7.85 7.80 7.85 7.80 7.85 7.80 7.85 7.80 5.65 4.90 6.00 5.00 6.00 5.00 6.00 5.00 6.00 5.00 6.00 5.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 15.10 15.10 15.10 15.10 15.10 15.10 7.90 7.90 7.90 7.90 7.90 7.90 6.40 7.00 7.00 7.00 7.00 7.00 34.00 34.00 34.00 34.00 34.00 34.00 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 1.06 1.41 1.41 1.41 1.41 1.41 0,00 0.00 0.00 0.00 0.00 0.00 1.77 2 1.77 2 1.77 2 1.77 2 1.77 2 1.77 2 3.39 2 3.39 2 3.39 2 3,39 2 3.39 2 3.39 2 18.23 2 19.82 2 19.82 2 19.82 2 19.82 2 19.82 2 0.00 2 0.00 2 0.00 2 0.00 2 0.00 2 0.00 2 Page 3 ToxCalc v5.0.23 Reviewed by: L'-"

Subcontract Chain of Custody CLIENT DETAILS: Client: FGL Environmental Address: 853 Corporation Street Santa Paula, CA 93061 Phone: (805) 659-0910 Fax: (805) 525-4172 Project: U Contact Person: REPORT INFORMATION:

Rush Analysis:

E3 5 days E 4 days 0l 3 days [] 2 days C3 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months i %Electronic Data Transfer:

YES / NO If yes, To: State Client Other REMARKS: SAMPLING: Sampler~s) 0 0 0 0.E 0 0 0 0.C', 0 o C C S-U ..O i-C U U2 I---U-0 E z U z 0v im-V o0 oi,'-U ,-,.,~0+0,~En 0_C)7.Cl),.---7 I-C 0 L7-4-J Y I S Sample Number Location/Description Date Sampled Time Sampled CUSTODY:-

Time .eiqihd ae ie__Relinquished by: Date: Received by:

Time:

by: DateT!o/ Time: I

@@ Line 11: / Line 11: @@
 | contact person =
 | case reference number = DCL-08-549
-| document type = Environmental Monitoring Report, Letter
+| document type = Environmental Monitoring Report, Letter type:DCL
 | page count = 103
 }}

DCL-08-549, Third Quarter 2008 Report on Discharge Monitoring at Diablo Canyon Power Plant: Difference between revisions

Revision as of 07:20, 18 September 2018

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Text

Dear Mr. Briggs:

SUMMARY

SUMMARY

Dear Ms. Ziegler:

Dear Ms. Ziegler:

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DCL-08-549, Third Quarter 2008 Report on Discharge Monitoring at Diablo Canyon Power Plant: Difference between revisions

Revision as of 07:20, 18 September 2018

Text

Dear Mr. Briggs:

SUMMARY

SUMMARY

Dear Ms. Ziegler:

Dear Ms. Ziegler:

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