Text

in Accordance with Order 90-09, NPDES No. CA0003751, Second Quarter 2006 Report on Discharge Monitoring at Diablo Canyon
	ML062060509
Person / Time
Site:	Diablo Canyon
Issue date:	07/19/2006
From:	Becker J; Pacific Gas & Electric Co
To:	; Office of Nuclear Reactor Regulation, State of CA, Central Coast Regional Water Quality Control Bd
References
	CA0003751, DCL-2006-531
	Download: ML062060509 (106)
	v • d • e

Electric Company Pacific Gas and Diablo Canyon Power Plant PO. Box 56 Avila Beach. CA 93424 800.545.6000 Date: IJuly 19, 2006 J

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Certified/Retum Receipt PG&E Letter DCL-2006-531 7003 3110 0005 7002 8520 California Regional Water Quality Control Board Central Coast Region Attn: Monitoring and Reporting Review Section 895 Aerovista, #101 San Luis Obispo, CA 93401-7906

Dear Mr. Briggs:

In accordance with Order 90-09, NPDES No. CA0003751, enclosed is the Second Quarter 2006 Report on Discharge Monitoring at Diablo Canyon Power Plant (Enclosure 1).

Facility Name: Pacific Gas & Electric Company Diablo Canyon Power Plant Address: P.O. Box 56 Avila Beach, CA 93424 Contact Person: Bryan Cunningham Job

Title:

Supervisor, Environmental Operations Phone Number: 545-4439 WDRINPDES Order Number: Order No. 90-09, NPDES No. CA0003751 Type of Report: (check one) QUARTERLY ANNUAL

[] 11 Quarter: (check one): 1st 2nd 3rd 4 Uh 11 19 11 11 Year: 2006 (Annual Reports for DCPP are Jan-Dec)

Violation(s) (Place an X by the appropriate choice): [K No (there are no violations to report) [] Yes

-- rEF2-ýs

PG&E Ltr DCL-2006-531 Mr. Briggs, CRWQCB July 19, 2006 Page 2 If Yes is marked (complete a-g):

a) Parameter(s) in Violation:

b) Section(s) of WDRINPDES Violated:

c) Reported Value(s) d) WDR/NPDES Limit/Condition:

e) Dates of Violation(s)

(reference page of report/data sheet):

f) Explanation of Cause(s): (If "YES", see overview section of attached report)

(attach additional information as needed) g) Corrective Action(s): (If OYES", see overview section of attached report)

(attach additional information as needed)

PG&E Ltr DCL-2006-531 Mr. Briggs, CRWQCB July 19, 2006 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, please contact Bryan Cunningham at (805) 545-4439.

Sincer Name: James R. Becker

Title:

Vice President- Diablo Canyon Operationsand Station Director 200653l/jlk/bkclear

PG&E Ltr DCL-2006-531 Mr. Briggs, CRWQCB July 19, 2006 Page 4 cc: Peter Von Langen, CRWQCB 895 Aerovista, #101 San Luis Obispo, CA 93401-7906 California Department of Fish and Game 20 Lower Ragsdale, Suite 100 Monterey, California 93490 Resident Inspector, Terry Jackson U.S. Nuclear Regulatory Commission Diablo Canyon Power Plant 104/5 Regional Administrator U.S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Dr., Suite 400 Arlington, TX 76011-4005 Director, Division of Reactor Projects U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Dr., Suite 400 Arlington, TX 76011-4005 U.S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555 Enclosure

PG&E Letter DCL-2006-531 ENCLOSURE I SECOND QUARTER 2006 REPORT ON DISCHARGE MONITORING AT DIABLO CANYON POWER PLANT

PACIFIC GAS AND ELECTRIC COMPANY NUCLEAR POWER GENERATION Second Quarter 2006 REPORT ON DISCHARGE MONITORING AT DIABLO CANYON POWER PLANT (NPDES No. CA0003751)

PACIFIC GAS AND ELECTRIC COMPANY Second Quarter 2006 REPORT ON DISCHARGE MONITORING AT DIABLO CANYON POWER PLANT TABLE OF CONTENTS page OVERV IEW ................................................................................ 1

SUMMARY

OF MONITORING PROGRAM A. Monitoring of Plant Influent and Effluent .......................... 1 B. Monitoring of Receiving Waters ................................... 2 C. Sodium Bromide Treatment Program ........................... 2 APPENDIX 1: NPDES Discharge Points APPENDIX 2: Influent and Effluent Monitoring - April 2006 APPENDIX 3: Influent and Effluent Monitoring - May 2006 APPENDIX 4: Influent and Effluent Monitoring - June 2006 APPENDIX 5: Acute Bioassay, May 17-21, 2006 APPENDIX 6: Chronic Bioassay, May 23-25, 2006

Enclosure:

Errata for 4th Quarter 2005 NPDES Discharge Monitoring Report For Diablo Canyon Power Plant

OVERVIEW

1. During the second quarter of 2006, discharges occurred from Discharge Paths 001 (once through cooling water), 001B, 001D, 001E, 001F, 001G, 001H, 001J, 001L, 001M, 001N, 001 P, and 002 through 015. No discharges occurred from Discharge Paths 0011, 001K, 16, and 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 second quarter of 2006, 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.

Date System Volume Glutaraldehyde Isothlazolin (gallons) (mg/I) (mg/I) 4/18/06 Unit 2 ICW 1,150 224 2.7 5/4/06 Unit 2 SCW 24,000 140 4.4

4. Continuous chlorine monitoring at Discharge 001 was interrupted twice during the second quarter of 2006. For each interruption, an engineering evaluation was completed in accordance with PG&E's January 5, 1994, letter as authorized by the CCRWQCB.

Intervals, the affected monitor(s), number of affected results, the cause, and corrective action(s) are tabulated below. In each case, an engineering evaluation was performed using the recorded injection rates and condenser waterbox inlet Total Residual Oxidant (TRO) results to calculate estimates of chlorine concentration for the affected unit at Discharge 001. These estimates are used to replace results affected by the respective monitor problem as agreed with CCRWQCB staff. Injection rates are set to provide a minimal amount of detectable chlorine at the discharge. Results from the engineering evaluations were all at least 20 pg/L below the applicable 89-pg/L discharge limit.

Number of Interval Affected Affected Cause Corrective Monitor(s) Readings Actions 5/18/06 to Unit 1 41 Sample flow restricted due to Fouled section of 5/25/06 biological fouling. instrument replaced 5/19/06 to Unit 2 47 Calibration problem during Monitor recalibrated.

5/25/06 1 1 post-outage start-up. I _I

5. Condensate from Unit 2 was discharged overboard via point 001J on April 17, 2006 during shut down of the unit for routine maintenance. The monthly samples for suspended solids and oil and grease from this discharge were missed due to human error on the part of the technician responsible for collection of the samples. The cause of this error has been evaluated, and implementation of comprehensive measures to prevent recurrence is in progress.

The daily maximum concentration limits for suspended solids and oil and grease discharged from 001J are 100 mg/L and 20 mglL, respectively. Samples were taken from Unit 2 001J at the next available opportunity on May 20, 2006. Analysis results were below the 1.4 mg/L detection limit for oil and grease, and less than the 5 mglL reporting limit for suspended solids. There is no operational reason to believe that analysis results would have been higher if samples had been taken from the water discharged on April 17, 2006.

6. Starting on May 17, 2006 firewater was inadvertently discharged via 001 E due to a leaking valve. The firewater was being used to cool the service cooling water heat exchanger. The butterfly valve on the heat exchanger was not completely sealing off flow, and an estimated 15 gpm of firewater leaked past the valve for 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months . Total volume discharged was approximately 64,800 gallons over the 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months . Water that is normally discharged via 001 E is pure water with corrosion inhibitors and biocides added.

The firewater was clean freshwater with no corrosion inhibitors and no biocides.

Firewater is a routine component of 001 discharge.

SUMMARY

OF MONITORING PROGRAM A. Monitoring of Plant Influent and Effluent

1. The results of the April, May, and June 2006 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 May 17-21, 2006, is included in Appendix 5. The bioassay results show that acute toxicity was 0.00 TUa (no mortality).

3. The laboratory report for one chronic bioassay on water sampled from Discharge 001, performed May 23-25, 2006, is included in Appendix 6. The bioassay results show that chronic toxicity was 1.0 TUc (no chronic toxicity).

B. Monitoring of Receiving Waters

1. Ecological Studies at Diablo Canyon Ecological studies in the vicinity of Diablo Cove conducted during the second 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 January 8, 1999. This program includes tasks from the Ecological Monitoring Program (EMP) with additional stations and increased sampling frequencies. The RWMP replaces 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 Pro-gram 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 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, remains below NPDES limitations.

Both conduits of Unit I were treated with simultaneous injections of sodium bromide and sodium hypochlorite six times a day throughout the second quarter of 2006. There were no interruptions in the treatment schedule.

Both conduits of Unit 2 began the second quarter with microfouling treatments of sodium hypochlorite prior to the 2R13 refueling outage. All Unit 2 injections were terminated in mid-April as 2R13 started. Simultaneous injections of sodium bromide and sodium hypochlorite six times a day were initiated shortly after the middle of May once the circulating water pumps were returned to service. This treatment schedule continued throughout the remainder of the second quarter with no interruptions.

APPENDIX I 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 Blo 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 April 2006

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 81 HIGUERA AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE. (IM)1 FACLITY I.D. YEAR / MO /DAY YEAR I MO/ DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06/04/01 ENDING 06 / 04 30 06 CA0003751 STATION INFLUENT EFFLUENT 001 DELTATEMP BEFLUENT*Ooi INFLUENT EFFLUENT 001 EFFLUENTOO1P EFFLUENT002 ANALYSIS TEMPERATURE TBEPERAIURE TBIPERATURE FLOW pH pH pH pH UNITS DEGREES F DEGREES F DEGREES F MGD pHUNITS pHUNITS pH UNITS pHUNITS SMPL TYPE METERED METERED METERED RECORDED GRAB GRAB GRAB GRAB FREG. CONTINUOUS CONTINUOUS CONTINUOUS DALY MONTHLY MONTHLY (-) MONTHLY MONTHLY 1 53.3 72.3 19.0 2486 2 53.3 72.3 19.0 2486 3 53.7 72.5 18.8 2486 8.0 8.0 2 7.7 2 8.0 4 54.0 72.8 18.8 2486 5 53.8 72.7 18.9 2486 6 52.7 71.8 19.1 2486 7 53.3 72.3 19.0 2486 8 54.4 73.3 18.9 2486 9 53.8 72.8 19.0 2486 10 54.8 74.0 19.2 2486 11 55,8 74.7 18.9 2486 12 55.8 74.7 18.9 2488 13 56.5 75.5 19.0 2486 14 56.0 75.2 19.2 2486 15 55.6 74.9 19.3 2486 16 55.8 74.5 18.7 2460 17 53.9 68.7 14.8 1862 18 52.1 70.8 18.7 1317 19 52.3 71.4 19.1 1239 20 52.1 71.3 19.2 1239 21 52.6 71.5 18.9 1239 22 52.4 71.2 18.8 1239 23 53.2 72.3 19.1 1239 24 522 71.6 19.4 1239 25 50.7 60.7 19.0 1239 26 50.7 69.5 18.8 1239 27 52.1 70.8 18.7 1239 28 53.3 72.0 18.7 1239 29 53.1 72.0 18.9 1239 30 51.8 70.8 18.8 1239 31 MONTHLYAVG 53.5 72.3 18.8 1927 8.0 8.0 7.7 8.0 MONTHLY HIGH 56.5 75.5 19.4 2486 8.0 8.0 7.7 8.0 MONTHLYLOW 50.7 68.7 14.8 1239 8.0 8.0 7.7 8.0 TIMESEXCEEDED' NO UMIT NO UMIT MAX22=0 MAX2750=0 NO UMIT NO UMIT NO UMIT NO UMIT TES EXCEEDED TIMESEXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

EXCEPT DURING DEMUSSEUNG.

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

CALIFORNIA REGIONAL WATER QUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRALCOAST REGION Po BOX 56 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 2 FACILITY I.D. YEAR /MO I DAY YEAR I MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06104101 ENDING 06104130 06 CA0003751 STATION EFFLUENT 003 EFFLUENT 004 EFFLUENT00IN EFFLUENT001P EFFLUENT 003 EFFLUENTr001F EFFLUENT 00 EFFLUENT001 ANALYSIS pH pH OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE T CHLOR RES CHLORINEUSED UNITS pH UNITS pHUNITS mglt fe mgA m9i ugi h&day SMPLTYPE GRAB GRAB COMPOSITE GRAB GRAB GRAB GRAB") RECORDED FREQ. MONTHLY MONTHLY WEEKLY WEEKLY (') WEEKLY (-) MONTHLY 2 per CYCLE MONTHLY 1 42 418 2 42 418 3 8.0 8.0 ND(I) 29 418 4 24 432 5 26 446 a 31 446 7 3 ND(5) 31 446 8 29 446 9 29 440 10 29 446 11 20 475 12 22 540 13 3 ND(S) 29 547 14 35 408 15 29 202 16 < 10 202 17 3 ND(5) 36 209 18 36 202 19 27 187 20 39 187 21 < 20 187 22 23 187 23 < 20 187 24 < 20 194 25 21 202 26 23 202 27 39 202 28 3 ND(*) < 20 202 29 21 202 30 30 202 31 1 MONTHLYAVG 8.0 8.0 ND(S) NO NO ND(5) 25 316 MONTHLYHIGH 8.0 8.0 ND(5) DISCHARGE DISCHARGE ND(5) 42 547 MONTHLYLOW 8.0 8.0 ND(5) ND(5) 10 187 TIMES EXCEEDED NO UMIT NO UMIT MOAVG15=0 MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 IMAX200=0 NO UMIT TIMES EXCEEDED DMAX20=0 D MAX20-0 DMAX2=0= DMAX2O0O TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

- WHENODINIS DISCHARGING TO 001P.

WHEN 0IP ISDISCHARGING TO 003.

-" CONTINUOUS CHLORINE MONITORING USED INSTEAD OF, I

I PRINCIPAL EXECUTIVE OFFICER I JAMES R.BECKER

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 81 HIGUERA AV1LA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M)3 FACILITY I.D. YEAR I MO / DAY YEAR / MO I DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06/04/01 ENDING 06/04/30 06 CA0003751 STATION EFF 001N=>03 EFF 001N=003 EFFLUENT 001D EFFLUENT 001iF ANALYSIS TOll. COLIFORMFECAL COLIFORM SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS MPwN100 MPN/100ml n1 Ist FLTR mI 2nd FLTR mgl NET anl lsItFLTR rag1 2nd FLTR 1J1 NET SMPLTYPE GRAB GRAB GRAB GRAB FREQ. 4 TIMES/WEK 4 TIMESdWEEK MONTHLY MONTHLY 2

3 2 11 2 1 2 11 4

5 3 1 3 ND(5) 6 7 1 ND(5) 8 9

10 11 12 4 1 2 1 4.c 5 13 14 15 16 17 18 19 20 21 22 23 24 2 24 2 < 1 2 24 25 26 27 28 29 30 31 MONTHLYAVG NO NO 5 11 MONTHLYHIGH DISCHARGE DISCHARGE 24 12 MONTHLY LOW ND(5) 11 TIMESEXCEEDED80% SMPLS>IK MEA"t2000= NO UMIT NO UMIT MOAVG30=0 NO UMIT NO UMIT MOAVG30=0 TIMESEXCEEDED 90 %SMPLS>400 DMAX100=0 DMAX100=0 1IMES EXCEEDED IMAX>10K REMARKS: "NUMBER OF SAMPLES TAKEN DURING THE DAY.

- FLOW-WEIGHTED AVERAGES REPORTED.

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 86 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 4 FACILITY I.D. YEAR I MO / DAY YEAR /MOIDAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 /04 101 ENDING 06 / 04 130 06 CA0003751 STATION EFFLUENT 001G EFFLUENT 001H ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS m2i1ast FLTR mlg12nd FLTR mgl NET mon ls1FLTR rg12nd R.TR rrg1 NET SMPL TYPE GRAB GRAB FRED. MONTHLY MONTHLY

- 1 1 ND(5) 2 3 ND(5) 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 MOnWNLY AVG ND(s) ND(S)

MCOTHLYWIGH N(S) ND(S)

MO4DTHYLO ND(S) ND(5)

TIMESEXCEEDED NO UMIT NO LIMIT MO AVG 30=0 NO UMIT NO LIMIT MO AVG 3b0=

TIMESEXCEEDED DMAX1O0= 0 DMAX 100= 0 TIMESEXCEEDED 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 MJCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 B1HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE. (M)6 FACILITY I.D. YEAR I MO / DAY YEAR / MO I DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06 /04 /01 ENDING 06/04/30 06 CA0003751 STATION FR.UUENT0011 EFFLUENT001J ANALYSIS SUSPBNED SOLIDS SUSPENDED SOLIDS UNITS W 11st FLTR Wra12nd FLTR Mn1 NET mlg 1st FLTR mn12nd RTR mg1 NET SMPLTYPE GRAB GRAB FRED. MONTHLY MONTHLY 2

3 4

5 6

7 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 MONTHLY HIGH DISCHARGE MONTHLY LOW TIES EXCEEDED NO UMIT NO UMIT MOAVG30=0 NO LIMIT NO UMIT MOAVG30=0 IMESEXCEEDED MAX 100- 0 MAXIO0 - 0 TIMESEXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

NO SAMPLE TAKEN. REFER TO COVER LETTER FOR DETAILS.

CALIFORNIA REGIONAL WATER OUAUTY DISCHARGE SELF MONITORING REPORT PAIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 81HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE. (U) 6 FACILITY I.D. YEAR / MO DAY YEAR / MO/DAY STATE CODE NPDES PERMIT#

3402003D01 BEGINMNG 06)04/01 ENDING 06 104,,/30 06 CA0003751 STATION EFFLUENTM1K EFFLUB4TO001L ANALYSIS SUSPENDED SOLIDS SUSPEN4DED SOLIDS UNITS w9 I1st FLTR wotl 2nd FLTR mg~1NET mfgl st FLTR mgf12nd FLTR ffgl NET SMPLTYPE GRAB GRAB FREC. MONTHLY MONTHLY 2

3 2< 1 2 ND(5) 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 MONTHLY AVG NO ND(5)

MONTHLY HIGH DISCHARGE ND(5)

MONTHLY LOW WDS)I TIMES EXCEEDED NO LIMIT NO LIMIT MOAVG30=0 NO UMIT NO LIMIT MOAVG30=0 TIMES EXCEEDED DMAX100 = 0 DMAX100 - 0 TIMES EXCEEDED REMARKS: NUJMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIRC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 66 81HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE. (U) 7 FACLITY I.D. YEAR IMO / DAY YEAR/MO/DAY STATE CODE NPDES PERMIT*

3402003001 BEGINNING 06104/01 ENDING 06 104 30 06 CA0003751 STATION EFFLUENTO00M EFBLUENT001N EFFLUENT0I1P ANALYSIS SUSPENDED SOLIDS SUSPENED SLDS SUSPENDED SOLIDS UNITS mgllsaFLTR mo12rd FLTR m91 NET Mn1 mW Ist FLTR mgM 2ndLTR mM1 NET SMPLTYPE GRAB COMPOSITE GRAB FREQ. MONTHLY WEBEKY MONTHLY 2

3 7 3 ND(5) 2 < 1 ND(5) 4 5

6 7 12 8

9 10 11 12 13 17 14 15 16 17 13 18 19 20 21 22 23 24 25 26 27 28 28 29 3D 31 MONTHLY AVG ND(5) 18 ND(S)

MONTHLY HIGH ND(S) 28 ND(S)

MONTHLY LOW ND(5) 12 ND(S)

TIMES EXCEEDED NO UMIT NO uMIT MOAVG30=0 MOAVG 60=0 NO UMIT NOUMIT MOAVG 30=0 TES EXCEEDED DMAXI0 = 0 DMAX100 = 0 TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

pf I PRINCIPAL EXECUTIVE OFFICER I

JAMES R.BECKER

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 81 HIGUERA AVILABEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE. (M) 8 FACILITY I.D. YEAR I MO / DAY YEAR/MOIDAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06104101 ENDING 06/04/30 06 CA0003751 STATION EFFLUBET 002 EFFLUB4T 003 ANALYSt SUSPBEDED SOLIDS SUSPENDED SOLDS UNITS 1 sIFLTR roM mW'2nd FLTR gM1NET m 11stRFLTR f/1i2nd FLTR mgPINET SMPL TYPE GRAB GRAB FREO. MONTHLY MONTHLY 1

2 3 2 3 2 < 1 2 ND(5) 2 7 2 3 2 NW5) 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 MONIHLYAVG ND(S) ND(5)

MONTHLY HIGH ND(") ND(5)

MONTHLY LOW ND5) ND(S)

TIMES EXCEEDED NO UMIT NO UMIT MOAVG30=0 NO LIMIT NO UMIT MOAVG30=0 TIMES EXCEEDED D MAX 1000 DMAX100 = 0 TIMES EXCEEDED REMARKS: " NUMBER OF SAMPLES TAKEN DURING THE DAY.

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 81HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE- (M)S FACILITY I.D. YEAR I MO/DAY YEAR I MO/ DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06104/01 ENDING 06/ 4/030 06 CA0003751 STATION UTWENT003003N EFFLUENT EFR.UENTO1 XIf0 EFFLUENT EFFLUENTI001 EFFLUENT001 ANALYSIS SUSPENDED SOLIDS SETFL SOLIDS TCHROMIUM COPPER NICKEL ZINC UNITS melJSIFLTR mg' 2nd FLTR mtlNET imr ug UDI uo up SMPLTYPE GRAB GRAB GRAB GRAB GRAB GRAB FRED. WEEKLYWHEN 001N &001P 003 WEB(LY MONTHLY MONTHLY MONTHLY MONTHLY 2

3 ND(10) ND(10) tN(10) N1(10) 4 5

6 7 ND(0.1) 8 9

10 11 12 13 ND(0.1) 14 15 16 17 ND(0.1) 18 19 20 21 22 23 24 25 26 27 28 ND(0.1) 29 30 31 MONTHLY AVG NO ND(O.1) ND(10) N14(10) ND(10) N'(10)

MONTHLY HIGH DISCHARGE 14)(0.1) ND(10) ND(10) ND(10) ND(10)

MONTHLY LOW I0(0.1) ND(10) 141(10) ND(10) ND(10)

TIMESEXCEEDED NO UMrT NO UJMIT MOAVG 30=0 MO AVG 1.0=0 UA-MED0 6M-MED 10-E 0M-M 0 ED =0 6-MED 7=0 3M-0EDS0 TIMESEXCEEDED DMAX100=0 DMAX3.0=0 DMAX40 = 0 DMAX50 =0 DMAX100D= 0 DMAX380 = 0 TIMESEXCEEDED IMAX100z= IMAX 14=0 IMAX260=0 IMAX990=O 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 81HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 901 PAGE.: (0) 1 FACILITY I.D. YEAR/MOIDAY YEAR I MO I DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06/04/01 ENDING 06/04 /30 06 CA0003751 STATION INFLUENT INFLUENT INFLUEBT INFLUENT EFFLUENT TEFFLUENTO0ID EFFLUENTO01G EFFLUENT001H ANALYSIS T CHROMIUM COPPER NICKEL AMMONIA (N) AMMONIA (N) OIL&GREASE OL &GREASE OIL&GREASE UNITS um ugn uvl uum gf MOM mof mwl SMPLIYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FRED. JNAPJUiA"OCT JA/PJlUUOCT WAP/JULAOCT JNAPIJJLJOCT JNAPIJUIUOCT JNAPIJULJOCT JNAPIJULlCCT WNAPJL.CT 1 ND(5) 2 3 N)(10) ND(10) ND(10) ND(200) ND(200) ND(5) 4 5 2 ND(5) 6 7

8 9

10 11 12 2 ND(5) 13 14 15 16 17 18 19 20 21 22 23 24 ND(5) 25 26 27 28 29 30 31 MONTHLYAVG ND(10) ND(10) ND(10) 1D(200) ND(200) ND(5) ND(S) ND(5)

MONTHLY HIGH ND(10) ND(10) ND(10) ND(200) ND(200) ND(5) ND(S) ND(S)

MONTHLY LOW ND(10) ND(10) ND(10) ND(200) ND(200) ND(5) ND(5) ND(5)

TIMESEXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT 6M-MED 3060 = 0 MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 TUB EXCEEDED DMAX I2240 = 0 DMAX20a 0 DMAX20 = 0 DMAX20 - 0 TIMES EXCEEDED I MAX 30600 = 0 REMARKS: " NUMBER OF SAMPLES TAKEN DURING THE DAY.

FLOW-WEIGHTED AVERAGE RESULT REPORTED.

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 81HIGUERA AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE. (0) 2 FACILITY LD. YEAR/MOIDAY YEAR/MO/DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06/04/01 ENDING 06/04 /30 06 CA0003"51 STATION EF:LUENT01I EFFLUENTO1J EFFLUENT001KEFFLUENT01L EFFLUBTTOClM EFFLUENT 001P EFFLUENT 002 EFFJLENT003 ANALYSIS OIL&GREASE OIL&GREASE OL AGREASE OIL&GREASE OIL&GREASE AGREASE OIL. OILAGREASE OIL&GREASE UNITS mn mo w Iw"Vi MO'M mo mo S*PL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. JNAPIJULVCT JINAP/JUUCT JNA/AP/JUL.CT JNAP/,JNUOCT JNA.PIJJ JNAItJULlOCT JANAP/JU/DCT JAAPIJULUOCT 2

3 2 ND(S) ND(S) ND(S) 2 ND(5) ND(5) 4 5

7 8

9 10 11 12 13 14 15 16 17 18 19 2D 21 22 23 24 25 26 27 28 29 30 31 MONTHLYAVG NO NO ND(S) ND(5) ND(5) ND(5) ND(S)

MON11LY HIGH DISCHARGE DISCHARGE ND(5) ND(5) ND(5) ND(S) ND(5)

MCONI'YLOW ND(S) ND(S) ND(S) ND(S) ND(5)

TIMESEXCEEDED MOAVG1S=0 MOAVG15-0 MOAVGI5=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 TIMESEXCEEDED DMAX20=0 DMAX20=0 DMAX20=0 DMAX20=0 DMAX2O=0 DMAX20-0 DMAX20=0 DMAX20=0 TIMESEXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

- NO SAMPLE TAKEN. REFER TO COVER LETTER FOR DETAILS.

CAUFORNIA 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 81 HIGUERA AVILA BEACH, CALIF 93424

SANLUIS OBISPO. CA34

r I ==r =l *lPAGE: (Q) 3

FACILITY I.D. YEAR / MO I DAY YEAR / MO / DAY STATE COOE NPDES PERMIT #

3402=6301 BEGINNING 06104101 ENDING 06/04 130 06 CA0003751 STATION EFFLUENT04 EFFLUENT 001 EFRUJBT"001D EFFLUENT 001H EFFLUB4T 0011 EFFLUENT 001F ANALYSIS OIL&GREASE TOXCONCEN CADMIUM CADMIUM CADMIUM CADMIUM UNITS mol flJ gh ug1 41 u41 SMPLTWPE GRAB GRAB QTRLY COMP OTRLYCOMP OTRLY COMP I WEB(COMP FREQ. JNAP)JULVCT JNAAPJAJOCT J.NAPJJULOCT JNAP/JUUOCT JNAYJJL/OCT JNAPJUJLOCIT 2

3 ND5) 4 ND(10) 5 2 ND(10) 2 ND(10) 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 23 24 25 26 27 28 29 30 MONTHLY AVG ND(5) ND(10) ND(10) ND(10) ND(10)

MONTHLY HIGHI ND(S) ND(10) ND(10) ND(1O) ND(10)

MONTHLY LOW ND(5) ND(10) ND(10) ND(10) NDE(10)

TIESEXCEEDED MO AVG 15=0 NO LIMIT NO LIMI NO LIMIT NO LIMIT TIMES EXCEEDED DMAX2D a0 SM-MED 0.26=0

,TIMES EXCEEDED REM4ARKS: *NUMBER OF SAMPLES TAKEN DURING THE DAY.

-TOXICITY SAMPLING AND ANALYSIS PERFORMED AND REPORTED INMAY.

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 B1HIGUERA AVILA BEACH, CALIF 93424 SAN LU1S OBISPO, CA 93401 PAGE: (Q) 4 FACILITY I.D. YEAR IMO/DAY YEARIMOI DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06/04/01 ENDING 06104130 06 CA0003751 STATION EFFLUENTO01D EFFLUENT001H EFFLUWBT0011 EFLUENTO0F EFFLUE'T 0010 EFFLUENT CO01 EFFLUNTTO01L EFFLUENT O01F ANALYSIS CHROMIUM T CHIRCMIUMT CHROMIUM TCHROMIUM COPPER COPPER COPPER COPPER UNITS w ~ uot ugN UP' ug ugh wgh wi SOPA TYPE OTRLY COMP OTRLY COMP OTRLYCOmP I WEEKCOMP OITRLY COMP CLY COMP OTRLYCOMP I WEEK COMP FREQ. JNAP1JIAJOCT JNAPIJULOCT JNAAPJUUOCT JNAAPIJULACT JNVAPIJULIOCT JJNAPIJULIOCT JNAlAJUOJCCT JNAPMJJLIOCT

____________

I ________

ND(10) 13 2 16 2 ND(10) 2 56 2 13 15 ND(10)

ND(10) 16 ND(10) 15 13 55 13 .o(10)

ND(10) 19 ND(10) 15 13 65 26 ND(10)

ND(10) 13 ND(10) 15 13 45 ND(I0) ND(IO)

NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO UMIT NO LIMIT NO LIMIT REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER QUALIY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC C00.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION Po BOX 56 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUISOBISPO. CA 193401 PAGE. (Q) 5 FACILITY 1.0. YEAR I MO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT #

3 402*003001 BEGINNING 06/104 1 01 ENDING ,06/104 130 06 CA00D3751 STATION EFFLUENTO00D EFFLUENT G01H EFFLUENT001L EFFLUENT 001F EFFLUENT001D) EFFLUENT 001H EFFLUENT 001L EFR.UENT001F ANALYSIS LEAD LEAD LEAD LEAD MERCURY MERCURY MERCURY MERCURY UNITS u*m u*n wl Don w w* u*

SULrTYPE OTlLY COUP OTROLY COMP oLy COmP I WEEK COMP OTALYCOUP OTILY COmP OiILY COUP I WEEK COMP FRED. JJAP/JULtOCT JNAAPJAJOCTJNAP/XLCT JNAP/JUUOCT JNAPIJULC*T JNAl,JAJJCT JNAPIJLUOCT JNAPJULIJCT 2

3 4 35 5 2 ND(10) 2 ND(10) 0.34 6 NID(10) ND(0.20) 7 2 ND(0.20) ND(0.20)

0.20 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 3O 31 MONTHLY AVG 35 NO(10) t"(10) No(10) ND(020) 0.27 tD(02) N(0.20)

MONTHLY HIGH 35 ND(IO) ND(10) ND(IO) ND(020) 0.34 tD(0.20) ND(0.20)

MONTHLY LOW 35 ND(10) ND(10) ND(10) ND(0.20) 0.20 ND(0.20) ND(0.20)

TIMESEXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO ULMIT NO IMIT NO LIMIT TIMESEXCEEDED ESEXCEEDED 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 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 6 FACILITY I.D. YEAR / MO / DAY YEAR/MO /DAY STATE CODE NPDES PERMIT #

3 400MO01 BEGINNING 06/04/01 ENDING 06/04/30 06 CAOOD3751 STATION EFFLUENT O010 EFFLUENTO011-H EFFLUJBT O0IL EFFLUW"TO0IF EFFLUBETO01D EFFLUENTO01H EFFLUENT 001L EFFLUENTO0IF ANALYSIS NICKEL NICKEL NICKEL NICKEL SILER SLVER SILVER SILVER UNrrs ugh ugm ugw w ul u ugh ug SMPLTYPE oTRYoOMP 0TRLY COMP QTRLYCOMP 1 WEEK C*UP QT'IRLYCOMP OTRLY COMP TRLYCOmP 1 WEE COMP FREQ. JNAP/JULUCT JNAP/JULIJCT JNAPIAJUO./CT JNAPIJUL/0CT JNAP/JUL/OCT JNAAPJAJIOCT JNAPIJ..OVCT JNAPkJUUCT 2

3 4 ND(1o) 5 2 17 2 ND(10) ND(10) 6 11 ND(10) 7 2 N14(10) ND(10) 8 ND(10) 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MtONTHLY AVG ND(10) 17 ND(110) I1I NDXIO) NIXI 0) ND3(I0) ND(IO)

MONTHLY HIGH ND(10) 18 ND(10) 11 ND(10) I40(10) ND(10) N"(10)

MONTHLY LOW ND(10) 16 ND(10) 11 ND(10) 14)(10) ND(10) ND(10)

TiMES EXCEEDED NOLUMIT NO UMIT NO1UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT IMES 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 81 HIGUERA AVILA BEACH, CAUF 93424 SAN LiIS OBISPO. CA 93401 PAGE: (0) 7 FACILTY I.D. YEAR I MO / DAY YEAR I MO / DAY STATE CODE NPDES PERMIT#

3402003DD1 BEGINNING 06/04101 ENDING 06/04/30 06 CA0003751 STATION EFFLUENTO01D EFFLUENT ODIH EFFLUENT 0CIL EFFLUENT O0IF ANALYStS ZINC ZINC ZINC ZINC UNITS u9n1 SMPLTYPE OTRLY COMP CTRLY COMP OTRLY COMP 1 WEEK COUP FREQ. JNAP/JULIOCT JAAP/,IIJOCT JNAPIJULOCT J.WAPlJULOCT 2

3 4 236 5 2 17 2 ND(10) 6 17 7

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 3D 31 MONTHLY AVG 236 17 NDl10) 17 MONTHLY HIGH 236 24 ND(10) 17 MONTHLY LOW 236 10 ID(10) 17 TiMES EXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS: ° NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER OUALIIY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE:- (Q)8 FACILITY I.D. YEAR / MO / DAY YEAR I MO I DAY STATE CODE NPDES PERMIT #

3402003O01 BEGINNING 06 1 04 101 ENDING 06104130 06 CA0003751 STATION EFFLUENT 0010 EFFLUENT001F EFFLUENT0011EFFLUENT OIL EFFLUENT001M ANALYSIS COPPER COPPER COPPER COPPER COPPER UNrITS w "w m1 w w SMPLTYPE 24-HR COMP. 24-HR COMP. 24-HR COMP. 24-HR COMP. 24-HRCOMP.

FREO. METAL CLNG METAL CLNG METAL CLNG METAL C0.NG METAL 0.NG 2

3 4

5 6

7 6

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 IONITHLYHIGH DISCHARGE DISCHARGE DISCHARGE DISCHARGE DISCHARGE VONTHLY LOW TIMES EXCEEDED MOAVG 1= 0 MOAVG 1=0 MOAVG I=0 MOAVG 1=0 MOAVG I=0 TIMESEXCEEDED DMAXI =0 DMAX1 =0 DMAXI =0 DMAXI =0 DMAXI =0 TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENMRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH, CAUF 93424 SAN LUISOBISPO. CA 93401 PAGE. (0) S FACILITY I.D. YEAR / MO/DAY YEAR /1MOIDAY STATE CODE NPDES PERMIT#

3402OD3001 BEGINNING 06/04101 ENDING 06/04 30 06 CA003751 STATION EFFLUENTOO0D EFFLUENT 001F EFLUENT S1ll EFFLUENT COIL EFR.UBNTOIM ANALYSIS IRON IRON IRON IRON IRON UNrTS irg' mom wg'1 mg' w SMPL TYPE 24-HR COMP. 24-HR COMP. 24-HR COMP. 24-HR COMP. 24-HR COMP.

FREQ. METALCI.NG METAL CING METAL CLNG METAL C.NG 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 MONIftHY HIGH DISCHARGE DISCHARGE DISCHARGE DISCHARGE DISCHARGE MONTHLY LOW TIMESEXCEEDED MOAVG I=0 MOAVG 1=0 MOAVG 1=0 MOAVG1=0 MOAVG 1=0 TIMESEXCEEDED DMAXI =0 DMAX1 =0 DMAXI =0 DMAX1 =0 DMAX1 =0 TIMESEXCEEDED REMAKS: A NUMBER OF SAMPLES TAKEN DURING THE DAY.

SIGNA ýNT DATE 7/19/2006

CAUFORNIA REGIONAL WATER OUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS ANDELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 81HIGUERA AVILA BEACH, CAIJF 93424 SAN LLIS OBISPO. CA 93401 PAGE' (A) 1 FACILITY I.D. YEAR I MOIDAY YEAR I MO , DAY STATE CODE NPDES PERMIT #

3,4020031 BEGINNING 06/04/01 ENDING 06/04130 06 CA0003751 STATION EFFLUENT OM INFLUENT EFFLUENT INFLUENT EFFLUENT 001 IFLUENT EFFLUENT 001 INFLUENT ANALYSIS TITANUM ARSENIC ARSENIC CADMIUM CADMIUM LEAD LEAD ZINC UNrrs ITS1 U1 ugfl

1 w uh SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FRED. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 N,(1o) 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 N(10)

MONTHLY HIGH ND(10)

MONTHLY LOW ND(10)

TIMESEXCEEDED NO UMIT NO UMIT 6M-MED 30 = 0 NO UMIT 6M-MED 10 =0 NO UMIT 6M-MED 10 =0 NO UIMIT TIMESEXCEEDED DMAX150 = 0 DMAX20 = 0 DMAX40 a 0 TIMESEXCEEDED IMAX400=0 IMAX50-0 IMAX 100=0 REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

- INFLUENT ANALYSIS PERFORMED FOR COMPARISON TO EFFLUENTS.

CAUFORNA REGIONAL WATER QUALITY DISCHARGE SELF MONMIORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 2 FACILITY I.D. YEAR I MO I DAY YEAR/MO/DAY STATE CODE NPDES PERMIT #

3 402003001 BEGINNING 06/04/01 ENDING 06/04/30 06 CA0003751 STATION INFLUEBT EFFLUENTO01 I4F.UENT EFFLUENT001 INFLUENT EFFLUENTO01 INFLUENT EFFLUENT 001 ANALYSIS MERCURY MERCURY SILVER SILVER CYANIDE CYANIDE PHENOLIC CMP PH84OUC CMP UNrIS u'1 ugn U9' w upm .1 (NONCL) u "ONCL)

SMPLTYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 1I 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.OW TIMES EXCEEDED NO UMIT 6M-MED 0.2=0 NO LIMIT 6M-MED 2.9=0 NO UMIT 6M-MED 3O=O NO UMIT 6M-MED 150=

TiMES EXCEEDED DMAX 0.8 = 0 DMAX 13.6=0 DMAX 100=0 DMAX 610= 0 TIMES EXCEEDED IMAX 2 = 0 IMAX 35= 0 IMAX 2SO=O IMAX1530=0 REMARKS: " NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER OUALIY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION Po BOX 56 81 HIGUERA AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A)

S FACILITY I.D. YEAR / MO I DAY YEAR/MO/DAY STATE CODE NPDES PERMIT #

3402003001 BEGINIMNG 06104/01 ENDING 06104/30 06 CA0003751 STATION INFLUENT EFFLUENT 001 EFFLUENT001DEFFLUENTOOIDEFFLUENTO0ID EFFLUENT005 EFFLUEBT 008 ANALYSIS CHLORPHENOL CHIOR PHB.OL LITHIUM BORON HYDRAZINE OL &GREASE OIL& GREASE UNITS ug'1 u'B1 "oml w w w SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREO. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 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 MONTHLY LOW TIMES EXCEEDED NO UMIT 6M-MED 10=0 NOUMIT NO UMIT NOUMIT MOAVG 15=0 MOAVG 15=0 WES EXCEEDED DMAX 20=0 DMAX 2040 DMAX 20=0 TIMES EXCEEDED IMAX 5O=0 REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALFORNIA REGIONAL WATER QUALITY DISCHARGE SELF M019TORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRALCOAST REGION PO BOX 56 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 4 FACIITY I.D. YEAR / MO/DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06/04/01 ENDING 06/04/30 06 CA0003751 STATION EFFLUENT M EFFLUENT013 EFFLUENT015 EFFLUEBNI"6 EFFLUENT017 INFLUENT EFLFBW8T 001 A4NALYSIS OILI GREASE OIL&GREASE O. &GREASE OIL&GREASE OIL&GREASE PC01 PcerS UNITS wR mg' n19' w ug' SMPLTYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 8

9 10 11 12 13 14 is 16 17 18 19 2D 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMESEXCEEDED MOAVG 15= MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 NO UMIT NO UMIT TIMES EXCEEDED DMAX 2C=O DMAX 2D00 DMAX 20=0 DMAX20=0 DMAX2D=D TIMESEXCEEDED 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 81HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 AGE.. (A)5 PI FACILITY I.D. YEAR /MO /DAY YEARl MOIDAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 04 01 ENDING 06 104 30 06 CA0003751 STATION EFFLUBUTO1N EFLUENT 001N EFFLUENT ODIN EFFLUENTOIN EFFLUENTCOIN EFFLUEIT 0OIN EFFLUENT COIN EFFLUENTOCIN ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS MOISTURE TOTKJDI.L N AMMONIA N) NITRATEgN. TOT PHOSPHS p- OIL&GREASE BORON SMPLTYPE % mig mgIlr fgog mRg9 pHwit nfikg mgi0 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 TIMESEXCEEDED NO UMIT NO UMIT NO LIMIT NO UMIT NO LIMIT NO UMIT NO UMIT NO UMIT rIMESEXCEEDED TIMESEXCEEDED 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 81HIGUERA AVILA BEACH, CAIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 6 FACILITY I.D. YEAR /MO IDAY YEAR I MO I DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06104101 ENDING 06 /04 130 06 CA0003751 STATION EFFLUENT 001N EFFLUENT 00IN EFFLUENTO0IN EFFLUENT

"iN EFFLUENT001N EFFLUENT001N EFFLUENT OOIN EFFLUENT 0OIN ANALIYS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS CADMIJM COPPER CHROMIUM LEAD NICKEL MERCURY ZINC VOLUME SMPLWPE mwo" nV4 mglt mW0 g mggM Ins FREQ. 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 TIMESEXCEEDED lOxSTLC=- IosTLC=O 1xSTLC=O IOxSTLC=O IOxSTLC--0 IoxSTLC=O IOxSTLC=O TIMESEXCEEDED 10 iglkg=O 250 mg"kg=0 50 mg/kg=O 50 mgtkg=0 200 mglkg=O 2 mg/kg=O 2500 mgVg=O TIMESEXCEEDED T"LC>100=O TrLC>2500=O TTLC>500=0 TILC>000=0 TLC>2000=O TrnC>20=0 TTLC>5000=0 REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

APPENDIX 3 DIABLO CANYON POWER PLANT Influent and Effluent Monitoring May 2006

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 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (U) I FACILITY I.D. YEAR / MO I DAY YEAR / MO/DAY STATE CODE NPDES PERMIT I 340003001 BEGINNING 06/05101 ENDING 06105/31 06 CA0003751 STATION INFLUENT EFFLUENTOX"I DELTATEMP EFFLUENT 001 INFLUENJT EFFLUENT001 EFFLUENT'001P EFFLUBET 002 ANALYSIS TEMPERATURETEMPERATURETEMPERATURE FLOW pH pH pH pH UNITS DEGREES F DEGREES F DEGREES F MGD pHUNITS pHUNITS pHUNITS pHUNITS SMPTI'YPE METERED METERED METERED RECORDED GRAB GRAB GRAB GRAB FREQ. CONTINUOUS CONTINUOUS CONTINUOUS DAILY MONTHLY MONTHLY (-I MONTHLY MONTHLY 1 52.3 70.9 18.6 1239 2 52.6 71.3 18.7 1239 3 52.0 70.1 18.1 1239 4 51.6 69.9 18.3 1239 5 51.5 70.3 18.8 1239 6 51.0 69.6 186 1239 7 50.2 68.9 18.7 1239 7.8 7.8 8 50.1 68.9 188 1239 9 50.1 68.6 185 1239 10 50.7 69.5 18.8 1239 2 7.6 2 7.8 11 52.0 71.1 19.1 1239 12 51.9 70.8 18.9 1239 13 51.5 70.5 19.0 1239 14 51.0 69.9 18.9 1239 15 52.2 71.3 19.1 1239 16 51.6 70.6 19.0 1239 17 50.9 69.6 18.7 1239 18 51.4 69.3 17.9 1473 19 52.7 67.3 14.6 1862 20 53.9 68.6 14.7 1862 21 54.7 69.3 14.6 1852 22 56.6 70.5 14.9 1852 23 55.7 69.3 13.6 1966 24 54.3 67.5 132 1862 25 51.9 66.8 14.9 1862 26 49.6 63.6 14.0 2252 27 49.3 62.7 13.4 2486 28 49.3 63.2 13.9 2486 29 49.4 65.3 15.9 2486 30 49.7 67.1 174 2486 31 50.0 68.1 18.1 2486 MONTHLYAVG 51.6 68.7 17.1 1624 7.8 7.8 7.6 7.8 MONTHLY HIGH 55.7 71.3 19.1 2486 7.8 7.8 7.6 7.8 MONTHLYLOW 49.3 62.7 132 1239 7.8 7.8 7.6 7.8 TIMES EXCEEDED NO LIMIT NO LIMIT MAX22=0 MAX 2760 =0 NO UMIT NO UMIT NO UMIT NO UMIT 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,I, 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 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 2 FACILITY I.D. YEAR I MO I DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06105/01 ENDING 06/05/31 08 CA0003751 STATION EFFLUENT M03 EFFLUBET 004 EFFLUENT COIN EFFUENTO00P EFFLUENT003 EFFLUENTODIF EFFLUENT O1M EFFLUENT001 ANALYSIS pH pH OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE T CHLOR RES CHLORINE USED UNITS pHUNITS pH UNITS mgA mgim/ m9 u/i bsAday SMPLTYPE GRAB GRAB COMPOSrTE GRAB GRAB GRAB GRABM RECORDED FREO. MONTHLY MONTHLY WEEKLY WEEKLY() WEELY (*) MONTHLY 2 per CYCLE MONTHLY 1 23 202 2 ND(S) 20 202 3 < 20 202 4 3 ND(5) 33 202 5 30 202 6 36 202 7 39 202 8 43 187 9 33 173 10 7.8 7.8 30 180 11 3 ND(S) 23 187 12 - 20 187 13 < 20 187 14 < 20 187 15 < 20 187 16 < 20 202 17 27 221 18 3 ND(S) 52 257 19 52 324 20 23 331 21 23 331 22 23 348 23 41 382 24 3 ND(5) 27 413 26 38 432 26 55 418 27 50 475 28 50 475 29 48 475 30 42 425 31 38 384 MAONTHLY AVG 7.8 7.8 NS(S) NO NO ND(S) 28 283 MONTHLY HIGH 7.8 7.8 ND(5) DISCHARGE DISCHARGE ND(S) 55 475 MJONTHLY LOW 7.8 7.8 ND(5) ND(5) 20 173 TIMES EXCEEDED NO UMIT NO UMIT MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 IMAX200=0 NO UMIT TIMES EXCEEDED DMAX20=0 DMAX20=O DMAX20=0 DMAX20=0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

WHEN 001N ISDISCHARGING TO 001P.

WHEN 001P ISDISCHARGING TO 003.

- tryvmu Im *icrJ-I ORIlnF ut'flR'Il. I II

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 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE (M) 3 FACILITY I.D. YEAR I MO / DAY YEAR I MO/DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06/ 05 01 ENDING 06/05/31 06 CA0003751 STATION EFF001N0 EFF001N=0= EFFLUENT 001D EFFLUNTC'OIF ANALYSIS TOTL COLIFORM FECALCOMFORM SUSPENDED SOUDS SUSPENDED SOLIDS UNITS MPNJ100ml MPNI1Oonl W1 lst FLTR m**l2nd FLTR mag1NET rg/1 1st FLTR mng'2nd FLTR m!nl NET SMPLTYPE GRAB GRAB GRAB GRAB FREQ. 4 TIMESAWEEK4 TMESIWEEK MONTHLY MONTHLY 2 2 6 2 1 2 3

4 5 3 2 2 3< 5 6

7 8

9 10 11 12 13 14 2 17 2 17 15 16 17 18 19 2 6 2 6 20 21 22 23 1 ND(S) 24 25 26 2 34 2 < 1 2 34 27 28 29 30 31 MOINTHLYAVG NO NO 7 6 GONTHLYHIGH DISCHARGE DISCHARGE 36 6 MONTHLY LOW ND(5) 6 lIMES EXCEEDED 80% SMPLS>IK MEAN>200= NO LIMIT NO LIMIT MO AVG 30 =0 NO LIMIT NO UMIT MO AVG 30=0 TIMES EXCEEDED 90 %SMPLS>400 D MAX 100 = 0 D MAX 100 m0 I1MES EXCEEDED I MAX >10K REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

- FLOW-WEIGHTED AVERAGES REPORTED.

S PRINCIPAL EXECUTIVE OFFICER JAMES R. BECKER

CAIJFORNIA 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 81 HIGUERA AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE. (M) 4 FACILITY LD. YEAR I MO / DAY YEAR /MOIDAY STATE CODE NPDES PERMIT#

34020o1 BEGINNING 06 105 101 ENDING 06106/31 06 CAo0oosl STATINC EFFLUENT OIG EFFLUENT O01H ANALYSIS SUSPENDED SOUDS SUSPENDED SOLIDS UNITS mg'1lstFLTR 2rm d FLTR mg*1NET mg lst FLTR rag1 2nd FLTR mro1NET SMPL TYPE GRAB GRAB FREO. MONTHLY MONTIHLY 2

3 4

5 6

7 B

9 10 < 1 < 1 ND(5) 11 12 13 14 15 16 17 18 19 20 a < 1 21 22 23 24 25 26 28 29 31 MONTHLY AVG ND(5) 6 MONTHLY HIGH ND(S) 8 MONTHLY LOW ND(5) 6 TIMES EXCEEDED NO UMIT NO UMIT MO AVG 30=0 NO UMIT NO UMIT MO AVG 30=0 TIMESEXCEEDED DMAX 100=0 DMAX 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 81 HIGUERA AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE. (M) 5 FACILITY I.D. YEAR I MO / DAY YEAR I MO / DAY STATE CODE NPDES PERMIT #

3 4*03001 BEGINNING 06105601 ENDING 06/05/31 06 CA0003751 STATION EFFLUBT OII BFLUJENT 001J ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mglIst FLTR mll 2nd FLTR moINET W/1IstFLTR mgP12nd FLTR mg'lNET SMPLTYPE GRAB GRAB FRE-. MONTHLY MONTHLY II 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 2 ND(5) 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)

TIMESEXCEEDED NO UMIT NO UMIT MOAVG30=0 NOUMIT NO uMIT MOAVG30=0 TIMESEXCEEDED MAXI06=0 MAX100= 0 TIMESEXCEEDED 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 81 HIGUERA AVILA BEACH, CAIJF 93424 SAN LUIS OBISPO, CA 93401 PAGE. (M) 6 FACILITY I.D. YEAR I MO / DAY YEAR / MO/DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06/05/01 ENDING 06105/31 06 CA0D03751 STATION EFFLUENT 001K EFFLUENT 00L ANALYSIS SUSPENDED SOLDS SUSPENDED SOLIS UNITS mf1 Ist FLTR mqg12nd FLTR mg/1NET m1gll aFLTR mg*12rid FLTR mgl NET SMPLTYPE GRAB GRAB FRED. MONTHLY MONTHLY 2 < 1 ND(5) 3 4

5 6

7 a

9 10 11 12 1 ND(5) 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONIIILYAVG NO NX()

MON1HLY HIGH DISCHARGE ND(5)

MONTHLY LOW ND(S) 11MESEXCEEDE NO uMIT NO UMIT MOAVG30=0 NO UMIT NO uMIT MOAVG3O=0 TIMESEXCEEDED DMAX100 - 0 DMAX100 = 0

,TIMES EXCEED II 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 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M)7 FACILITY I.D. YEAR I MO I DAY YEAR/ MO/DAY STATE CODE NPDES PERMIT #

3 40200301 BEGINNING 06106/01 ENDING 06056/31 06 CA0003751 STA*ION EFFL.UBEINTM EFFLUENT ODIN WPLUENT.OIP ANALYSIS SUSPENDED SOLIDS SUSPENDED SLDS SUSPENDED SOLIDS UNITS mol11s FLTR m912nd FLTR mrI NET mol moll 1sIFLTR mgr12 RFLTR mwl NET SMPLTYPE GRAB COMPOSITE GRAB FREQ. MONTHLY WEEKLY MONTHLY

- - . a -

2 3

4 24 5

6 7

8 9

10 1 1 ND(5) 11 24 12 13 14 15 16 17 18 54 19 20 21 22 23 24 56 25 26 27 28 29 30 31 MONTHLY AVG NO 40 ND(S)

MONTHLY HIGH DISCHARGE 586 ND(S)

MONTHLY LOW 24 ND(S)

TMES EXCEEDED NO UMIT NO UMIT MOAVG30=0 MOAVG60=0 NO UMIT NO UMIT MOAVG30=0 TIMESEXCEEDED DMAX100 = 0 DMAXI100 = 0 TIMESEXCEEDED 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 81HIGUERA AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE. (M) 8 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT t 3402003001 BEGINNING 06/05101 ENDING 06106/31 06 CA0003751 STATION EFFWENT 0 EFFLUENT 003 APNLYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS my'llstFLTR Wg12nd FLTR mgf1NET mglhIlstFLTR mg12rid FLTR mg1lNET SMPLTYPE GRAB GRAB FREM. MONTHLY MONTHLY 2

3 4

5 a

7 8

9 10 2 2 2< 1 2 ND(5) 2 5 2 1 2 5 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 2B 29 30 31 MONTHIY AVG ND(S) 5 MONTHLY HIGH ND(5) 5 MONTHLY LOW ND(S) 5 TIMESEXCEEDED NO UMIT NO UMIT MOAVG30=0 NO UMIT NO UMIT MOAVG30=O TIMESEXCEEDED DMAX 100 = 0 DMAX100- 0 TIMESEXCEEDED 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 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPOT CA 93401 PAGE: (M) I9 FACILTY I.D. YEAR / MO / DAY YEAR I MO / DAY STATE CODE NPDES PERMIT#

,3 402003001 BEGINNING 06/,05 /01 ENDING 06 105 /31 05 CA0003751 STATrION EFFLUENT OM EFFLUENTO01N EFFLUENT 001 EFFLUENT'001 EFFLUENT W01 EFFLUJET 001 ANALYSIS SUSPENDED SOUDS SETT. SCUDS TCHROMIUM COPPER NICKEL ZINC UNlS mql1 stFLTR iin 2nd RFTR mg1 NET mYi1 u' ugh ugh up SMPLTYPE GRAB GRAB GRAB GRAB GRAB GRAB FREQ. WEBE.Y WHEN 001N&O01P O3 WEEKLY MONTHLY MONTHLY MONTHLY MONTHLY 2

3 4 ND(0.1) 5 6

7 ND(10) ND(10) NW(1G) NO(lO) 8 9

10 11 NI(o.1) 12 13 14 15 16 17 18 ND(0.1) 19 20 21 22 23 24 ND(0.1) 25 26 27 28 29 30 31 MONTHLYAVG NO ND(0.1) ND(10) ND(10) ND(10) ND(1O)

MONTHLY HIGH DISCHARGE ND(0.1) ND(10) ND(10) ND(10) ND(10)

MONTHLY LOW ND(0.1) ND(10) ND(10) N4(10) tD(10)

TIMES EXCEEDED NO UMIT NO UMIT MOAVG 30=0 MOAVG 1.0= 0 6M-MED 10 =a SM-MED 10=0 6M-MED 30 z0 BM-MED 70=0 TIMES EXCEEDED DMAX100=0 DMAX30=0 DMAX40 = 0 DMAXS0 = 0 DMAXI00 = 0 DMAX3BO = 0 TIMES EXCEEDED IMAX10D=0 IMAX 14O=0 IMAX260=0 IMAX990=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 PO BOX 56 81HIGUERA AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (Q) 1 FACILITY I.D. YEAR / MO I DAY YEAR I MO/DAY STATE CODE NPDES PERMIT#

3402D003001 BEGINNING 06,05/01 ENDING 06/05/31 06 CA0003751 STATION INFLUENT INFLUENT INFUENT INFLUENT EFFLUENT001 EFFLUBrr 001D EFFLUENT00IG EFFLUBIT001H NALI.YSIS TCHROMIUM COPPER NICKEL AMMONIA (N) AMMONIA(N) OIL&GREASE OIL&GREASE OIL&GREASE UNITS uo ,h ugh ugn .h muh mw mgl SMPLTYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREO. JNAFIJUUOCT JNVAP/JULOCT JAlAFJUAJOCT JNAP/JU1OCT JANAP/JULOCT J(APAJULiOCT JNAP/JULOCT JNAPIJLUUOCT 2

3 4

5 ND(S) 6 7 ND(10) ND(10) ND(10) a 9

10 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) < 5 MONTHLY HIGH ND(10) ND(10) ND(10) 5 MONTHLY LOW ND(10) ND(10) ND(10) ND(5)

TIMESEXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT 6M-MED 3060 = 0 MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 TIMESEXCEEDED DMAX12240 = 0 DMAX20 = 0 DMAX20 = 0 DMAX20 = 0

,NES EXCEEDED I MAX 30600 = 0 REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

SFLOW-WEIGHTED AVERAGE RESULT REPORTED.

CALIFORNIA REGIONAL WATER OUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLD CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE.'(0) 2 FACILITY LD. YEAR / MO I DAY YEAR I MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06/05/01 ENDING 06/05/31 06 CA0003751 STATION EFFLUENT 0011 EFFLUENTO1J EFFLUENT001K EFFLUENT "001L EFFLUENT001M EFFLU84T O0IP EFFLUENT 002 EFFLUENT003 ANALYSIS OILAGREASE OIL&GREASE OILAGREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL0&GREASE OIL&GREASE UNITS w m' ig 19ll mfl mw 11w SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREO. JNAP/JUUJOCT JNAP/JUUOCT JAAP/JUUOCT JNAP/JUL/OCT JNAP/JUL/OCT JN/APIJUUOCT JNAPIJU1JOCT JNAAP/JULOCT 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 ND(5) 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG ND(5)

MONTHLY HIGH ND(5)

MONTHLY LOW ND(5)

TIMESEXCEEDED MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=O TMESEXCEEDED DMAX20=0 DMAX2O=0 DMAX20=0 DMAX20=0 DMAX20=0 DMAX20=0 DMAX20=0 DMAX20=0 TIMESEXCEEDED 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 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (Q) 3 FACILITY I.D. YEAR / MO / DAY YEAR / MO I DAY STATE CODE NPDES PERMIT I 3402003001 BEGINNING 06/05/01 ENDING 06/05/31 06 CA0003751 STATION EFFLUENT 004 EFFLUENT 001 EFFLUENT 001D EFFLUENT 001H EFFLUENT 001L EFFLUENT 001F ANALYSIS OIL&GREASE TOXCONCEN CADMIUM CADMIUM CADMIUM CADMIUM UNITS mgvl TU 11n uptl ufil uPl SMPL TYPE GRAB GRAB QTRLYCOMP O'TRLYCCMP OTRLY COMP 1WEB( COMP FREQ. JAAP/JULlOCTJNAPIJULAOCTJNAP/JULI/OCT JNAPIJULOCT JA(APIJRJOCT JNAfP/JUlCT 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 0.00 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG -0.00 MONTHLY HIGH 0.00 MONTHLY LOW 0.00 TIMESEXCEEDED MO AVG 15 =0 NO UMIT NO UMIT NO UMIT NO UMIT TIMESEXCEEDED DMAX20 = 0 TIMESEXCEEDED 6M-MED 0.26=0 REMARKS: " NUMBER OF SAMPLES TAKEN DURING THE DAY.

TOXICITY SAMPUNG AND ANALYSIS PERFORMED AND REPORTED INMAY.

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 81 HIGUERA 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

3402003001 BEGINNING 06 105101 ENDING 06105/31 06 CA0003751 STATION EFFLUENT001D EFFLUENTOIH EFFLUENT OIL EFFLUENT*rOF EFFLUENT 0010 EFFLUENTO 1H EFFLUENT O01L EFFLUENT 001F ANALYSIS CHROMRUM TCHROMIUM TCHROMIUM TCHROMIUM COPPER COPPER COPPER COPPER UNrrS ug'1 ug'1 LuVl U ug'i SMPLTYPE OTRLYCOMP OTRLY COMP OTFRLYCOMP 1WEB(COMP QTRLY COMP OTRLY COMP OTRLY COMP 1IWEE(COMP FREO. JWAP/JULOCT JNAP/JUL/OCT JNAP/JUL/OCT JNAP/JULVOCT JNAPIJUUOCT JNAP/JUL/OCT JNAPIJUIJPCT JNAfP/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 TIMESEXCEEDED NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO UMIT TIMESEXCEEDED TIMESEXCEEDED 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 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE. (Q) 5 FACILITY I.D. YEAR I MO I DAY YEAR/ MO/IDAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06/05/01 ENDING 06/05/31 06 CA0003751 STATION EFFLUENT 001D EFFLUENT S01H EFFLUENT 0a1L EFFLUENT 001F EFFLUENTOOlD EFFLUENT 001H EFFLUENT 001L EFFLUENT 001F ANALYSIS LEAD LEAD LEAD LEAD MERCURY MERCURY MERCURY MERCURY UNITS uw1 w w ugl w1 wg* w SMPLTYPE OTRLY COMP C'TRLY COMP OTRLY COMP 1WEEB(CKCP OTRLY COMP QTRLYCOMP OTRLY COP IWEB(COMP FREQ. JAWAPIJULJOCT JNAP/YJJUOCT JNAPILOCT JNAP/JULCT JNAPI/JUOCT J/AAP/JULOCT JlAP/AJULOCT JNAFlJULOCT 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 2D 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMESEXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO LIMIT NO UMIT NO UMIT TIMESEXCEEDED TIMESEXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA 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 81HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE. (0) 6 FACILITY I.D. YEAR I MO I DAY YEAR I MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06105/01 ENDING 06/05I31 06 CA0003751 STATION EFFLUBT 0 EFFL 'r O1 EFFLUEETT01HL EFLU OIE,"T0FFFLUENT 001F EFFLUENTN 01H EFFLUENTO)IL EFFLUENT 00IF ANALYSIS NICKEL NICKEL NICKEL NICKEL SILVER SILVER SILVER SILVER uNrrITS wg1 wn ug u"1 u' ugm u SMPL TYPE QTRLY COMP OTRLYCOMP QTRLY COMP 1WEEKCOMP aTRLYCOmP OTRLY COmP QTRLY COUP 1WEEKCOUP FREQ. JAIAP/IUIJOCT JNAPIJUJOCT JNAP/JJUIOCT JNAPIJULJOCT JNAPIJUL./CT JNAPIJUUOCT JA/AP/JU/OCT JNAP/.JU/OCT 2

3 4

5 a

7 8

9 10 11 12 13 14 isi 15 16 17 18 19 20 21 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONJTHLYHIGH MONTHLY LOW TIMESEXCEEDED NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO UMIT NO UMIT NO UMIT TIMESEXCEEDED TIMESEXCEEDED REMARKS: ° NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORMA 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 81 HIGUERA AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE. (0) 7 FACILITY LD. YEAR I MO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT I 3402003001 BEGINNING 06/05101 ENDING 06/05/31 06 CA0003751 STATION4 EFFLUENT Ol1D EFFLUIENT00IH EFFLUBIT O0IL EFFLUENTOIF ANALYSIS ZINC ZINC ZINC ZINC UNrTS ug00 w w ugw SMPITYPE TRRLY COMP amLY COmP QTRLYCOMP 1WEEKCOMP FREQ. JAfAP/JUJIOCT JNVA/JUUOCT JNAFYJUAVOCTJNAPIJULIOCT 2

3 4

5 6

7 a

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 NO UMIT NO UMIT NO UMIT 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.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE.: (Q) 8 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06/05101 ENDING 06056/31 06 CA0003751 STATION EFFLUENT 001D EFFLUENT Ol1F EFFLUENT 0011 EFFLUENT 001L EFFLUENT 001M ANALYSIS COPPER COPPER COPPER COPPER COPPER UNIS wv w MOM j* ,ml SMPLTYPE 24-HR COMP. 24-HR COMP. 24-HR COMP. 24-HR COMP. 24-HR COMP.

FRED. METAL CU4 METAL CLNG METAL CLNG METAL CLNG METAL CLNG I

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 I=0 MOAVG1=0 MOAVG I=0 MOAVG I=0 TIMESEXCEEDED DMAXI =0 DMAX1 =0 DMAX1 =0 DMAX1 =0 DMAXl =0

,IMES EXCEEDE I 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 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUISOBISPO. CA 93401 PAGE. (0) 9 FACILITY I.D. YEAR/ MO/ DAY YEAR I MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 051 01 ENDING 06 105 131 06 CA0003751 STATION EFFLUBETO01D EFFLUENT O01F EFFLUEBT 0011 E1.UENTLO0IL EFFLUENT"O01M ANALYSIS IRON IRON IRON IRON uNrrS w1 mg w mgm ,f91 SMPL TYPE 24-HR COMP. 24-HR COMP. 24-HR COMP. 24-HR COMP. 24-HR COMP.

FREO. METAL W.NG METAL CLNG METAL CLNG METAL CING METAL CLNG 2

3 4

5 6

7 9

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 TIMESEXCEEDED MOAVGI=0 MOAVG 1=0 MOAVG I=0 MOAVG I=0 MOAVG 1=0 TIMESEXCEEDED DMAXI =0 DMAXI =0 DMAXI =0 DMAXI =0 DMAXI =0 ImESEXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

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 a1 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE. (A) I FACILITY I.D. YEAR / MOI DAY YEAR I MO I DAY STATE CODE NPDES PERMIT*

3402003001 BEGINNING 06105101 ENDING 06 05/31 06 CA0003751 STATION EFFLUENT001 INFLUENT EFFLUENT INFLUENT EFFLUBET 001 INFLUENT EFFLUENT001 INFLUENT ANALYSIS TITANIUM ARSENIC ARSENIC CADMIUM CADMIUM LEAD LEAD ZINC UNITS ugmI ugv1 ug1 ug 'l ug ug/1 ug' ug SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREO. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER I I 2

3 4

5 6

7 ND(10) 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 ND(1O)

MONTHLY HIGH tIx(IO)

MONTHLY LOW ND(1I)

TIMES EXCEEDED NO UMIT NO UMIT 6M-MED 30 = 0 NO LIMIT 6M-MED 10=0 NOUMIT 6M-MED I0=0 NO UMIT TIMES EXCEEDED OMAX150 0 D MAX20 = O 0 D MAX40 = 0 TIMES EXCEEDED IMAX400=0 IMAX50-0 IMAX 10D--0 REMARKS: "NUMBER OF SAMPLES TAKEN DURING THE DAY.

-INFLUENT ANALYSIS PERFORMED FOR COMPARISON TO EFFLUENTS.

CALIFORNIA REGIONAL WATER QUAL'IY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION Po BOX 56 81 HIGUERA AVILA BEACH, CALIF 93424 SAN WIS OBISPO. CA 93401 PAGE (A) 2 FACIUTY I.D. YEAR / MO I DAY YEAR I MO/ DAY STATE CODE NPDES PERMIT*

3402003001 BEGINNING 06105/01 ENDING 06/05/31 06 CA0003751 STATION INFLUENT EFFLUENT 001 INFLUEBT EFFLUENT001 INFLUENT EFFLUENT001 INFLUIET EFFLUENT001 ANALYSIS MERCURY MERCURY SILVER SILVER CYANIDE CYANIDE PHENOLIC CMP PHENOLIC CmP UNITS ug/1 unin u' ugl ug' ug (ONCL) ug1 (NONCL)

SMPLUTYPE 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-MED 0.2=0 NO UMIT 6M-MED 24=1 NO UMIT 6M-MED 30=0 NO UMIT eM-MED 150=0 TIMES EXCEEDED DMAX 0.8 =0 DMAX 136=0 DMAX 100=0 DMAX 610= 0 TIMES EXCEEDED IMAX2 = 0 IMAX 35= 0 IMAX 260=0 IMAX 1530=0 REMARKS: " NUMBER OF SAMPLES TAKEN DURING THE DAY.

PRINCIPAL EXECUTIVE OFFICER JAMES R. BECKER

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 81HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 3 FACILITY I.D. YEAR I MO I DAY YEAR I MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06/05/01 ENDING 06/05/31 06 CA0003751 STATION INFLUENT EFFLUENT 001 EFFLUJID EFFUJENT WID EFFLUENT001D EFFLUENT005 EFFLUENT 008 ANALYSIS CHLOR PHENOL CHLOR PHENOL LITHIUM BORON HYDRAZINE OIL&GREASE OIL&GREASE UNITS ugm u,, m9 w mn mugh w SMPLTYPE 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 MONTIILY AVG MONTHLY HIGH MONTHLY LOW TIMESEXCEEDED NO LIMIT 6M-MED 10=0 NO UMIT NO LIMIT NO LIMIT MO AVG 15=0 MO AVG 15=0 TES EXCEEDED DMAX 20=0 DMAX 20=0 DMAX 2O=0 1ES 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 D0ABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CAT~l' 9W Im n PAGE."(A) 4 FACILITY I.D. YEAR /MO /DAY YEAR/IMO/DAY STATE CODE NPDES PERMIT #

,3402003D01 BEGINNING 06 / 05/01 ENDING 06 105/131 06 CA0003"751 STATION EFFLUENT 09 EFFLUENT 013 EFFLUENTOIS EFFLUENT 016 EFFLUENT 017 INFLUENT EFFLUENT 001 ANALYSIS OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE PCeS PCBS UNITS mo Me Mgon agf/ mrg1 uvl ug/1 SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 1i 19 20 21 22 23 24 25 26 27 28 29 31 MO*THLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 NO UMIT NO I.MIT TIES EXCEEDED DMAX 20=0 DMAX 20=0 DMAX 20=0 DMAX 20=0 DMAX20=O 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 81HIGUERA AVILA BEACH, CAUF 93424 SAN LUfSOBISPO, CA 93401 PAGE: (A) 6 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

34020030D1 BEGINNING 06/06/01 ENDING 06/05131 06 CA0003751 STATION EFFLUENT 001N EFFLUENT O0IN EFFLUENT ODiN EFFLUENT O0IN EFFLUENTOC0INEFFLUENTO0IN EFFLUENT 0WN EFFLUENT001N ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS MOISTURE TOT KD.OL N AMMONIA (N) NITRATE(N) TOT PHOSPHS pH OIL.&GREASE BORON SMPUTYPE % A A ngf VIAg pHunis nig 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 3D 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMESEXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO LIMIT NO UMIT NO UMIT TIMESEXCEEDED TIMESEXCEEDED 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 81HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE. (A) 6 FACILITY I.D. YEAR / MO I DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06/051 01 ENDING 06105131 06 CA0003751 STATION BEFF.UENT001N EFFLUENT001N EFFLUENT001NEFFLUEFT 01N EFFLUENT01N EFFLUENT 001N EFRJJENT001N EFFLUENTOB0N ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS CADMIUM COPPER CHROMIUM LEAD NICla. MERCURY ZINC VOW.UME SMPLTYPE M9g ni*g mKg n0fg W9¶( b FREQ. 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 TIMESEXCEEDED 0xSTLC--=0 IOxSTLC=0 10xSTLC=O 10xSTLC--0 10xSTLC=-0 1xSTLC=O 1oxSTLC=0 TIMES EXCEEDED 10 mg/kg=O 250 mgig=0" 50 mgg=0 50 mgog=0 200 g/g=O 2 maftg=O 2500 moig=0 TES EXCEEDED TLC>o100=O T1LC>2500=0 T"LC>500=0 TTLC>1000=O TRC>2000=O TrLC>20=O TTLC>5000=0 REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

APPENDIX 4 DIABLO CANYON POWER PLANT Influent and Effluent Monitoring June 2006

CAUFORNIA REGIONAL WATER OUALTY DISCHARGE SELF MONITORING REPORT PACFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 81HIGUERA AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE. (M) 1 FACILITY I.D. YEAR / MO / DAY YEAR/MO/DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06 / 06 01 ENDING 06 / 06 30 06 CA0003751 STATION INFLULENT EFFLUENT 001 DELTATEMP EFFLUENT001 INFLUENT EFFLUENT001 EFFLUENTODIP EFFLUENT002 ANALYSIS TESMPERATURE TEMPERATURETEMPERATURE FLOW pH pH pH pH UNITS DEGREES F DEGREES F DEGREES F MGD pHUNITS pHUNITS pH UNITS pHUNITS SMPLTYPE METERED METERED METERED RECORDED GRAB GRAB GRAB GRAB FREQ. CONTIUUM CONTINUOUS CONTINUOUS ONLY MONTHLY MON'THLY() MONTHLY MONTHLY

+ - i. a 1 50.3 68.8 18.5 2486 2 51.2 69.5 18.3 2486 3 50.0 67.5 17.5 2486 4 49.9 67.8 17.9 2486 5 50.2 68.5 18.3 2486 a 50.6 69.0 18.4 2486 7 50.8 69.3 18.5 2486 8 50.8 692 18.4 2486 9 51.1 69.6 18.5 2488 10 51.3 69.7 18A 2486 11 51.9 70.3 18A 2486 12 5&3 71.8 18.5 2486 13 53.3 71.9 18.6 2486 14 52.1 70.5 18.4 2486 15 50.8 69.4 18.6 2486 16 50.1 68.5 18.4 2486 17 50.7 69.0 18.3 2486 18 52.7 712 18.5 2486 19 51A 70.0 18.6 2486 20 50.9 69.5 18.6 2486 21 51.5 69.5 18.0 2486 7.9 22 52.8 71.7 18.9 2486 7.9 7.9 23 52.8 71.4 18.6 2486 24 53.4 72.0 18.6 2486 25 53.2 71.8 18.6 2486 26 53.1 71.7 18.6 2486 27 53.5 71.9 18.4 2486 2 7.6 28 53.4 72.0 18.6 2488 29 52.2 71.1 18.9 2486 30 51.8 70.4 18.6 2486 31 MONTHLY AVG 51.7 70.2 17.9 2486 7.9 7.9 7.6 7.9 MONTHLY HIGH 53.5 72.0 18.9 2486 7.9 79 7.6 7.9 MONTHLY LOW 49.9 67.5 17.5 2486 7.9 7.9 7.6 7.9 TIMESEXCEEDED NO UMIT NOUMIT MAX22=0 MAX 2760 =0 NO UMIT NO UMIT NO LIMIT NO UMIT TES EXCEEDED (")

TIMESEXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

EXCEPT DURING DEMUSSEUNG.

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

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 81 HIGUERA AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE- (M) 2 FACILITY I.D. YEAR / MO / DAY YEAR / MO/ DAY STATE CODE NPDES PERMIT #

3402003O01 BEGINNING 06/06I01 ENDING 06/06/30 06 CA0003751 STATION EFFLUENT 003 EFFLUENT 004 EFFLUENTODINEFFLUENT 001P EFFLUENT003 EFFLUENT OD1F EFFLUENT001 EFFLUENT 001 ANALYSIS pH pH OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE T CHLOR RES CHLORINE USED UNITS pHUNrIS pHUNITS mgl mf MO Monmgl bs"a SMPLTWPE GRAB GRAB COMPOSITE GRAB GRAB GRAB GRAB(-I RECORDED FRED. MONTHLY MONTHLY WEEKLY WEEKLY) WEEKLY (-) MONTHLY 2 per CYCLE MONTHLY 1 60 403 2 3 ND(5) ND(5) 26 425 3 35 446 4 29 448 5 33 446 6 27 446 7 24 446 8 3 ND(S) 42 446 9 29 456 10 38 475 11 26 475 12 14 475 13 13 504 14 3 ND(5) 14 633 15 ND(s) 31 633 16 46 518 17 20 504 18 26 504 19 24 504 20 3 ND(S) 24 S04 21 2 7.9 24 504 22 42 504 23 35 504 24 29 504 25 29 504 26 29 504 27 7.9 22 504 28 20 504 29 ND(S) 56 504 3O 66 504 31 MONTHLY AVG 7.9 7.9 ND(S) NO NO ND(S) 31 484 MONTHLY HIGH 7.9 7.9 ND(5) DISCHARGE DISCHARGE ND(5) 66 533 MONTHLY LOW 7.8 7.9 ND(5) ND(S) 13 403 TIMESEXCEEDED NO UMIT NO UMIT MOAVG15=0 MOAVG 15=0 MOAVG15=0 MOAVG15=0 IMAX200=0 NO UMIT TIMESEXCEEDED DMAX2O=0 DMAX20=0 DMAX2=0D DMAX20=0 TIMESEXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

WHEN 0OlN ISDISCHARGING TO 001P.

WHEN 001P ISDISCHARGING TO 003.

-- ___CONTINUOUS CHLORINE MONITORING USED It

CAUFORMA 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 81 HIGUERA AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M) 3 FACILITY LD. YEAR I MO / DAY YEAR / MO I DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06/06/01 ENDING 06/06/30 06 CA0003751 STATION EFF001 N=>003 EFF 001 N=>003 EFFLUENT 001D EFFLUENTW"0IF ANALYSIS TOTL COUFORM FE-CA COLIFORM SUSPENDED SOUMS SUSPENDED SOLDS UNITS MPN'00ml MPWI00DMl mo1 Ist FLTR mW12nd FLTR m~i NET mWl Ist FLRTr fl 2nd FLTR nagt1 NET SMPLTYPE GRAS GRAs GRAB GRAB FREC. 4TIMESWEB( 4 TIMESANEB( MON1HLY MONTHLY 2 2 4 2 1 2 ND(5) 3 4

5 6 1 ND(5) 7 8 2 51 2 51 9

10 11 12 13 14 15 16 17 18 19 1 ND(5) 20 21 22 2 3 2 ND(S) 23 2 38 2 1 2 37 24 25 26 27 28 29 30 31 MONTHLY AVG NO NO -c 5 ND(S)

N4CTHLYHIGH DISCHARGE DISCHARGE 51 ND(5)

MONTHLY LOW ND(5) 1D(5)

TIMESEXCEEDED80% SMPLS>IK MEAN>200= NOUMIT NOUMIT MOAVG30=0 NOUMIT NOUMIT MOAVG30=0 TIMES EXCEEDED 90 %SMPLS>400 DMAX100=0 DMAX100=0 riMES EXCEEDED I MAX >10K REMARKS: *NUMBER OF SAMPLES TAKEN DURING THE DAY.

"FLOW-WEIGHTED AVERAGES REPORTED.

CAIJFORNIA 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 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS O6ISPO. CA 93401 PAGE. (M)4 FACILITY I.D. YEAR I MO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06/06101 ENDING 06/06/I30 06 CA0003751 STATION EFFLUENT 001G EFFLUENT OO1H ANALYSIS SUSPENDED SOUDS SUSPENDED SOLIDS UNITS ml I1st FLTR mg/'12nd FLTR ng*1NET mgW11stFLTR mg'12nd FLTR mg1 NET MRI.TYPE GRAB GRAB FRED. MONTHLY MONTHLY 1 - < 1 ND(5) 2 3

4 5

6 7

8 9

10 11 12 13 14 15 16 17 18 19 20 21 5 5 22 23 24 25 26 27 28 29 30 31 MONTHLYAVG 5 ND(5)

MONTHLY HIGH 5 ND(5)

MONIHLYLOW 5 ND(5)

TIMES EXCEEDED NO LIMIT NO LIMIT MO AVG 3O=0 NO UMIT NO UMIT MOAVG 3O=0 rIMESEXCEEDED DMAX13X= 0 D MAX100=0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

U I PRINCIPAL EXECUTIVE OFFICER I

JAMES R. BECKER

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 81HIGUERA AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE. (M) 5 FACILITY I.D. YEAR I MO I DAY YEAR / MO I DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06106/01 ENDING 06106/30 06 CA0003751 STATION EFFLUENT 0011 EFFLUENT 0IlJ ANALYSIS SUSPENDED SOLIDS SUSPENDED SOUDS UNITS rG*1lstFLTR mgfl 2n FLTR nv'l NET mgMlst FLTR mn12rdFLTR WgB1 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 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLYAVG NO NO MONTHLY HIGH DISCHARGE DISCHARGE MONTHLY LOW TIMES EXCEEDED NO UMIT NO IMIT MOAVG 30D0 NO UMIT NO UMIT MOAVG30=0 TIMES EXCEEDED MAX100 = 0 MAX 100 = 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 81HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 FACILITY I.D. YEAR ! MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06/06/01 ENDING 06/06130 06 CA0003751 STATION EFFLUBET001K EFFLUJBE 001L ANALYSIS SUSPENDED SOIDS SUSPENDED SCLIDS UNITS mfl 1st FLTR mfl 2nd FLTR mg4 NET mnl 1st FLTR wg'12ndFLTR mo/1 NET SMPLIYPE GRAB GRAB FREQ. MONTHLY MONTHLY I

2 3

4 5

6 7

B 9

10 11 12 13 14 15 2 < 2 ND(")

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)

TIMESEXCEEDED NO UMIT NO UMIT MO AVG 30 =0 NO UMIT NO UMIT MOAVG30=0 TIMESEXCEEDED DMAX 100 =0 DMAX100 = 0 EXCEEDED REMARKS: " NUMBER OF SAMPLES TAKEN DURING THE DAY.

I PRINCIPAL EXECUTIVE OFFICER I

I~~EI

CAUFORNIA 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 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE.(M) 7 FACILTYI.D. YEAR / MO / DAY YEAR/MOIDAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06106101 ENDING 06/06130 06 CA0003751 STATION EFFLUENT001M EFFLUENTOIN EFFLUENT001P ANALYSIS SUSPENDED SOLIDS SUSPENDED S.DS SUSPENDED SOLIDS UNITS mgl II FLTR mO'2nd FLTR ffUl NET mgr1 mo/1lstFLTR mOl 2nd FLTR mg/1NET SMPL TYPE GRAB COMPOSITE GRAB FRED. MONTHLY WEEKLY MONTHLY 1

2 7 3

4 5

6 7

8 10 9

10 11 12 13 14 5 15 16 17 18 19 20 8 21 22 23 24 25 26 27 ND(5) 28 29 9 3O 31 MONTHLY AVG NO 8 MN(5)

MONTHLY HIGH DISCHARGE 10 ND(5)

MONTHLY LOW 5 fq5)

IMES EXCEEDED NO UMIT NO UMIT MOAVG30=0 MOAVG60=0 NO UMIT NO UMIT MOAVG30=0 TIMESEXCEEDED D MAX 100 = 0 DMAX 100 = 0

,TIMS 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 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE. (U) 8 FACILITY I.D. YEAR I MO / DAY YEAR I MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 08/06101 ENDING 06/06130 06 CA(XD03751 STATION EFFLUENT 02 BFFLUENT 0SO NA*.YSIS SUSPENOED SOLIDS SUSPBEDED SOLIDS UNITS m lIst FLTR mra12ndFLTR mgl NET mlM lst FLTR mg1l2nd FLTR wg'l NET SMPL TYPE GRAB GRAB FREa. MONTHLY MONTHLY 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 2 1 2 1 2 ND(5) 2 5 2 < 1 2 5 30 31 MONTHLY AVG ND(5) 5 MONTHLY HIGH ND(5) 5 MONTHLY LOW ND(5) ND(5)

TIMES EXCEEDED NO LIMIT NO UMIT MOAVG30=0 NO UMIT NO LIMIT MOAVG30=0 nMESEXCEEDED DMAX10O z 0 DMAX100 z 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 66 81 HIGUERA AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE. (M) 9 FACILITY I.D. YEAR / MO / DAY YEAR/MOIDAY STATE COOE NPDES PERMIT#

3402003001 BEGINNING 06/06/01 ENDING 06 106 30 06 CA0003"_51 STATION EFFLUBEIT 003 EFFLUB*TrO1N EFFLUBET001 EFFLUENT001 EFFLUENT 001 EFFLUENT 001 ANALYSIS SUSPENDED SOLIDS SET'L SOLIDS TCHROMOJM COPPER NICKEL ZINC UNITS mgM lslFLTR mgh 2rid FLTR MONET um ugm ugh ugh ugh SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB FRED. WEBKLY WHEN001N &001P 003 WEEKLY MONTHLY MONTHLY MONTHLY MONTHLY 2 ND(0.1) 3 4

5 6

7 8 ND(0.1) 9 10 11 12 13 14 ND(O.1) 15 16 17 18 19 20 ND(0.1) 21 22 ND(10) ND(10) ND(10) ND(10) 23 24 25 26 27 28 29 ND(0.1) 30 31 MIONTHLY AVG NO ND(0.1) ND(10) ND(10) ND(10) ND(10)

MONTHLY HIGH DISCHARGE ND(0.1) ND(10) ND(10) ND(10) ND(10)

\ONTHLYLOW ND(O.1) ND(10) ND(10) ND(10) ND(10)

TIMES EXCEEDED NO UMIT NO LIMIT MOAVG 30=0 MOAVG 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 DMAX50 = 0 DMAX100 = 0 DMAX380 = 0 TIMES EXCEEDED IMAX I0=0 IMAX 140 =0 IMAX260=0 IMAX99O=0 REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAAUFORNIA REGIONAL WATER OUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

0ONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION Po BOX 56 81HIGUERA AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 1 FACILITY I.D. YEAR / MO I DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06106/01 ENDING 06 /06 /30 06 CA0003751 STATION INFLUENT INFLUENT INFLUBET INFLUENT EFFLUENT 001 EFFLUENTOOD EFFLUENTODIG ETFLUBENT*0H N*ALYSIS TCHROMIUM COPPER NICKEL AMMCNIA (N) AMMONIA (N) OIL&GREASE OIL&GREASE OIL&GREASE UNITS ugh uph ugh u*lhU911 nfog w MOM SMPL TYPE GRAS GRAS GRAB GRAB GRAB GRAB GRAB GRAB FREQ. JNAPIJULIOCT JAIAPAL/CT JA/PIJULfOCT JNAP/,AJIOCT JNANJJULOCT JNAPIA.LtOCT JNAIPJULOCT JNAtKIJlOCT 2

3 4

5 6

7 B ND(5) 9 10 11 12 13 14 15 16 17 18 19 20 21 22 ND(10) ND(10) ND(10) 23 ND(S) 24 25 26 27 28 29 30 31 MONTHLYAVG ND(10) ND(10) ND(10) ND(5)

MONTHLYHIGH ND(10) ND(I0) ND(10) ND(5)

MONTHLY LOW ND(10) ND(10) ND(10) ND(S)

TIES EXCEEDED NO UMIT NO UMIT NO UMIT NO uMIT 6M-MED3060=0 MOAVG15=0 MOAVG 15=0 MOAVG15=0 TIMESEXCEEDED DMAXI224O=0 DMAX20=0 DMAX20 = 0 DMAX20 = 0 liMES 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 81 I-GUERA AVILA BEACH, CALF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 2 FACILITY I.D. YEAR IMO/DAY YEAR / MO I DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06/106/01 ENDING 06/06/30 06 CA0003751 STATION SEFLUETO01I EFFLUBIT00IJ EFFLUET01K EFFLUENTOIL EFFLWEENT001MEFFLUBET01P EFFLUENT 002 EFFLUENT003 ANALYSIS OIL AGREASE OIL&GREASE OIL&GREASE OIL&GREASE OILAGREASE OIL& GREASE OIL&GREASE OIL&GREASE UNITS ml n'1 mgl n mgw1 wl g' mg*1 M21 wn SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREG. JWAPIAXJOCT' JAAPIJU./OCT JNVAP/JULOCT JNAPIJULVOCT JAIAP/JULAOCT JAIAP/JULICT WdAPJJUOCT JAIAP/JULUOCT 2

3 4

5 6

7 a

9 10 11 12 13 14 15 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 _________

MONTrILY AVG MONTHLY HIGH MONTHLY LOW TIMESEXCEEDED MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 TESEXCEEDED DMAX20=0 DMAX20=0 DMAX20=0 DMAX20=0 DMAX20=0 DMAX20=0 DMAX20=0 DMAX20=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 81HIGUERA AVILA BEACH, CALIF 93424 SAN UIS OBISPO. CA 93401 PAGE. (0) 3 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06106101 ENDING 06/06/30 06 CA(003751 STATION EFRLUENTO04EFFLULENT01 EFFLUENT001D E]FLUENTO01H EFFLUENTODIL EFFLUENTCO1F ANALYSIS OIL&GREASE TOXCONCBI CADMIUM CADMIUM CADMIUM CADMIUM UNITS mg'1 TU uw' un m SMPL"IPE GRAB GRAB QTRLYCOMP QTRLY COMP COMP QTRLY 1 WEEK COMP FREC. JNVAP/JULADCT JNAPIJUI/OCT JNAP/JUUOCT JNAPIUWIOCT JNAP.JUIOCT JNAP/JUL/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 OMONHLYAVG MONTHLY HIGH MONTHLY LOW TIMESEXCEEDED MO AVG 15 =0 NO UMIT NO UMIT NO UMIT NO UMIT TIMES EXCEEDED D MAX 20 = 0 lIMES EXCEEDEn 6M-MED 0.26=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 PO BOX 56 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, C 93401 PAGE: (0) 4 FACILITY LD. YEAR I MO I DAY YEAR/MOIDAY STATE CODE NPDES PERMIT #

3 402003001 BEGIINNG 06/06/01 ENDING 06 106/ 3 06 CAO03751 STATION EFFLUENT001D EFFLUENT 001H EFFLUENT O01L EFFLUENT" O0F EFFLUENT0010 EFFLUENT COIH EFFLUENT 001L EFLRUENT 0O1F ANALYSIS CHROMIUM T CHROMIUM T CHROMIUM TCHROMIUM COPPER COPPER COPPER COPPER UNITS ug'11 ugfl ugt ug'1 uh ugl1 ugo SMPL TYPE OTRLYCOMP OTRLYCOMP OTR.Y COmP IWED(COMP OTRLY COMP OTRLY COMP OTRLYCOMP 1WEEK COMP FREM. JNAP/ULUCT JNAJPU/OlCT JNAP/JULUOCT JNAPIJUL/OCT JANAPIJUUVOCTJNAP/JUL/OCT JNAP/JJtJOCT JNAPIJU/AbCT 2

3 4

5 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 NIGH MONTHLY LOW TIMES EXCEEDED NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT TIES 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 81 HIGUERA AVILA BEACH, CAIJF 93424 SAN LUIS OBISPO, CA 93401 PAGE. (Q) 5 FACILITY I.D. YEAR / MO / DAY YEAR / MO/DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06/06/01 ENDING 06/06/30 06 CA003751 STATION EFFLUENTOO1D EFFLUENT001H EFFLUENT001L EFFLUENT O0iF EFFLUENTDrr0DEFFLUENTC001HEFFLUENT COIL EFR.UENT 001F ANALYSIS LEAD LEAD LEAD LEAD MERCURY MERCURY MERCURY MERCURY UNrTS U9m u9'uou gh Ugn ugh U09 .9 SMPLTYPE OTRILY COMP QTRLY COMP nTRLY COMP 1 WEEKCOWP OTRLY COMP QTRLY COMP OTRLY COmP 1 WEEBCOMP FRED. JNAPIJULICT JNAP/JULUCT JNAP/JX/OCT JNAP/JULKOCT JNAJJLIOGT JAtAPIJUUJOCT JNAP/JULOCT JNAJJULIOCT 2

3 4

5 6

7 a

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 MONT*LY HIGH MONTHLY LOW TIMESEXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT TIMESEXCEEDED TiMESEXCEEDED REMARKS: " NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONALWATER QUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION P0 BOX 56 81HIGUERA AVILA BEACH, CAUF 93424 SANLUIS OBISPO. CA 93401 PAGE. (Q) 6 FACILITY I.D. YEAR / MO I DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 /06/01 ENDING 06 / 06 /30 06 CA0003751 STATION EFFLUENT"001D EFFLUENT 001H EFFLUENTCOIL EFFLUENTCO1F EFFLUENTCO1D EFFLUENT O01H EFFLUENTO0L EFFLUENTOCIF ANALYSIS NICKEL NICKEL NICKEL NICKEL SILVER SILVER SILVER SILVER UNITS ug'1 u9'1 ugm1 u9n1 uvi uo ~ wg~ uo SMPLTYPE OT'LY COMP OTRLY COMP OTRLY COMP 1WEB(COMP QTRLYCOMP OTRLY COMP OTRLY COmP IWE.B(COMP FRED. JNAPJLk)jCT JNAP/JUUOCT JNAPIJUL/OCT JANAPIJJLJOCT JNAJULA/C" JNAP/JUUOCT JNAPIJUL.OCT JNAPAAJUOCT 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 NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

PRINCIPAL EXECUTIVE OFFICER JAMES R. BECKER

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 81 HIGUERA AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 7 FACILITY I.D. YEAR / MO / DAY YEAR / MO I DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06/06/01 ENDING 06/06/30 06 CA0003751 STATION EFFLUENT 1ID EFFLUENT001H EFFLUENT 01L EFFLUENTO0IF ANALYSIS ZINC ZINC NC ZINC UNITS uw11 u9n 411 ug/1 SMPLTYPE OTRLY COP OTY COMP OTRLY COMP 1 WEEK COUP FRED. JNIAP/JUJIOCT JNAP/JUUOCT JNAP/JULIOCT JNAPIJUUOCT 2

3 4

5 6

7 6

9 10 11 12 13 14 15 16 17 18 19 2D 21 22 23 24 25 26 27 28 29 30 31 MONTHLYAVG ON1THLY HIGH M*cNTHLY LOW TIMES EXCEEDED NO UMWT NO UMIT NO UMIT NO UMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS: " NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER CUAWTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 8 FACILITY I.D. YEAR I MO / DAY YEAR / MO I DAY STATE CODE NPDES PERMIT #

3 402003001 BEGINNING 06/06101 ENDING 06/06/30 06 CA0003751 STATION &FLENTO001001F EFFLUENT EFFLUENTFO01 EFFLUENT 001L EFFLUENT O01M ANALYSIS COPPER COPPER COPPER COPPER COPPER UNITS ml mMon ww mw SIPL TYPE 24-HR COMP. 24-HR COMP. 24-HR COMP. 24-HR COMP. 24-HR COMP.

FREC. METALELNG METAL CING METPLCING METVLM.C MEFALCING 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 TIMESEXCEEDED MOAVGI=0 MOAVGI=0 MOAVG1=0 MOAVGI=0 MOAVG1=0 TIMESEXCE*'D DMAXI =0 DMAXI =0 DMAX1 =0 DMAXI =0 DMAX1 =0 TIMESEXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER QUALUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH, CALIF 93424 SAN WIS OBISPO, CA 93401 PAGE: (0) 9 FACILITY ID. YEAR I MOIDAY YEAR IMOIDAY STATE CODE NPDES PERMIT #

,3402003001 BEGINNING 06 /06/ 01 ENDING 06/06/30 06 CA0003751 STATION EFFLUENT 001D EFFLUENTO0IF EFFLUENTO 11 EFFLUJENT001L EFF.UENTOIM ANALYSIS IRON IRON IRON IRON IRON UNITS w' w mo mgm m SMPLTYPE 24-HR COMP. 24-HR COMP. 24-HR COUP. 24-HR COMP. 24-HR COMP.

FREO. METAL CLNG METAL CLNG METAL CLNG METAL CLNG METAL CLNG 1i 2

3 4

5 6

7 9

9 10 11 12 13 14 15 16 17 18 19 2D 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 TIES EXCEEDED MOAVG I =0 MOAVG 1 =0 MOAVG 1 =0 MOAVG 1 =0 MOAVG I =0 TIMESEXCEEDED DMAXI =0 DMAX1 =0 DMAXI =0 DMAX1 =0 DMAX1 =0 TIMESEXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAIJFORNIA 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 81HIGUERA AVILA BEACH, CAUF 93424 SAN LUIS OBISPO CA 93401 PAGE: (A) 1 FACILITY I.D. YEAR/MO/DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06/06/01 ENDING 06/06/30 06 CAODD3751 STATION EFFLUENT001 INFLUENT EFFLUENT INFLUENT EFFLUENT 001 INFLUENT EFFLUENTOO1 INFLUENT ANALYSIS TITANIUM ARSENIC ARSENIC CADMIUM CADMIUM LEAD LEAD ZINC UNITS L*m UDI w1 Lg/1 Lp ugh ug' ugh SMPTYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. 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 59 23 24 25 26 27 28 29 30 31 ,

MONTHLY AVG 59 MONTHLY HIGH 59 MONTHLY LOW 59 TIMESEXCEEDED NO UMIT NO UMIT 6M-MED 30 = 0 NO UMIT 6M-MED 10 =0 NO UMIT 6M-MED 10 0 NO UMIT TIMESEXCEEDED DMAX15O=0 DMAX2O = 0 DMAX40 = 0 TIMESEXCEEDED IMAX400=0 IMAX50-0 IMAX 10O=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 81HIGUERA AVILA BEACH, CAIJF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 2 FACILITY LD. YEAR I MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06/06/01 ENDING 06 106 1 30 06 CA000375 I STATION INFUJENT EFFWJENTI001 INFLUENT EFFLUET001 INFLUENT EFFL.UENT001 INFLUENT EFFLUENT 00I ANALYSIS MERCURY MERCURY SLVER SILVER CYANIDE CYANIDE PHENOUC CMP PHENOLICCMP UNITS g1 ugi w' ug'1 ug'1 uDM u9 ONC) ug KNONCL 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 IMES EXCEEDED NO UMIT 6M-MED 0-2=0 NO LIMIT 6M-MED 2.9=0 NO LIMIT 6M-MED 30=0 NO UMIT 6M-MED 150=0 IMES EXCEEDED DMAX 0.8 = 0 DMAX 13.6=0 DMAX 100=0 DMAX 610= 0 IMES EXCEEDED IMAX 2 = IMAX 36= 0 IMAX 260=0 IMAX1530=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 PO BOX 56 81HIGUERA AVILA BEACH, CALIF 93424 SANLUIS OBISPO. CA 93401 PAGE: (A) 3 FACILITY I.D. YEAR I MO / DAY YEAR I MOI DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06/06/01 ENDING 06/106/30 06 CA0003751 STATION INFLUENT EFFLUENT001EFFLUENT 0011D EFFLUENTO1ODEFFLUEBTl001D EFFLUBE"TO5 EFFLUENTOO8 ANALYSIS CHLOR PHENOL CHLOR PHENOL LITHIUM BORON HYDRAZNE OIL&GREASE OIL&GREASE UNITS U911 u1 Ifol myg In w mg'1 SMPL'TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. 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 TIES EXCEEDED NO UMIT 6P-MED 10=0 NO LIMIT NO LIMIT NO LIMIT MO AVG 15=0 MO AVG 15=0 TIMESEXCEEDED DMAX 20=0 DMAX 20=0 DMAX 20=0 TIMESEXCEEDED 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 CENTRAL COAST REGION PO BOX 56 81HIGUERA AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE. (A) 4 FACILITY I.D. YEAR I MOI DAY YEAR I MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06/06101 ENDING 06/06130 06 CA0003751 STATION EFFLUENT009EFFLUE*T 013 EFFLJENT015 EFFLUJET 016 EFFLUBET 017 INFLUENT EFFLUENT 001 ANALYSIS OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE PCWS PCBS UNITS m~nl mwl mn mg' w ugh uol SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 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 MCNTHLY AVG MONTHLYHIGH MONIHLY LOW TIMES EXCEEDED MOAVG 15-0 MOAVG 15=0 MO AVG I,=0 MOAVG 15=0 MOAVG 15=0 NO UMIT NO UMIT 71ES EXCEEDED DMAX 20=0 DMAX 20=0 DMAX 20=0 DMAX20=O DMAX20=O TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CALIFORNIA REGIONAL WATER QUAUTY DISCHARGE SELF MONITORING REPORT PACIRC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (A) S FACILITY I.D. YEAR / MO / DAY YEAR I MO / DAY STATE CODE NPDES PERMIT#

3,402003001 BEGINMNG 06/06/01 ENDING 06/06130 06 CA0003751 STATION EFFLUENT*01N EFFLUENTCOIN E*FLUEIT 001N EFFLUENT001N EFFLUENTO01N EFFLUENT 0OIN EFFLUENTOCIN EFFLUENT OOIN ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS MOISTURE TOT KJLDL N AMMoNiADN) NtITRATED4) TOT PHOSPHS pH OIL&GREASE BORON SMPLTYPE % wg fft f" ffg pHwits i.g FREQ. GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 a

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

MOI.*LYLOW TIMES EXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO LIMIT NO UMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

OCONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 81HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 6 FACILITY I.D. YEAR / MO / DAY YEAR / MO/IDAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06106/01 ENDING 06/06/30 06 CA0003751 STATION EFFLUENTC*OIN EFFLUENTCOIN EFFLUENT 001N EFFLUENT 0I1N EFFLUENT0OIN EFFLUENT OOIN EFFLUENT 001N EFR.UENT00IN ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS CADMIUM COPPER CHROMIUM LEAD NICKEL MERCURY ZINC VOLUME SMPL TYPE fig r g mgfGgf mgig wvBg bm FREC. 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 TIES EXCEEDED 10xSTLC--0 10xSTLC-0 10xSTLC--0 10XSTLC=0 10xSTLC=O 10xSTLC=0 1OxSTLC=0 TIMESEXCEEDED 10 m919=O 250 mgVg=O 50 mqgg=O 50 mg'kg=0 200 mgfq=O 2 moq1g=0 2500 mg",g=O TIMESEXCEEDED T"LC>1OO=0 "rTLC>250=0 TfLC>500=0 TTLC>10000o TTLC>2000=0 1"FLC>20=0 TTLC>5000=0 REMARKS: " NUMBER OF SAMPLES TAKEN DURING THE DAY.

APPENDIX 5 DIABLO CANYON POWER PLANT Acute Bioassay May 17-21, 2006

VATIC A

'B!IQASSA &

CONSULTING LABORATORIES, INC.

TOXICITY TESTING

OCEANOGRAPHIC RESEARCH June 6, 2006 Ms. Vicki Ziegler FGL Environmental P.O. Box 272 Santa Paula, CA 93061

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: PG&E Diablo Canyon SAMPLE I.D.: PG&E Diablo Canyon - DCPP Discharge 001 DATE RECEIVED: 17 May - 06 ABC LAB. NO.: FGL0506.230 ACUTE ABALONE SURVIVAL BIOASSAY LC50 = 100 % Survival in 100% Sample TUa = 0.00 Yours very truly, Thomas (Tim) Mikel Laboratory Director 29 NORTH OUVE STREET, VENTURA, CA 93001 * (805) 643-5621

Acute Abalone Test-96 Hr Survival Start Date: 5/17/2006 Test ID: FGL0506230 Sample ID: CA0000000 End Date: 5121/2006 Lab ID: CAABC Sample Type: EFFI-Industrial Sample Date: 5/17/2006 Protocol: EPAA 91-EPA Acute Test Species: Hr-Haliotus rufescens Comments: DCPP Discharae 001 acute Conc-% 1 2 N Control 1.0000 1.0000 100 1.0000 1.0000 Transform: Arcsln Square Root Isotonic Conc-% Mean N-Mean Mean Min Max CV% N Mean N-Mean N Control 1.0000 1.0000 1.4120 1.4120 1.4120 0.000 2 100 1.0000 1.0000 1.4120 1.4120 1.4120 0.000 2 Auxiliary Tests Statistic Critical Skew Kurt Normality of the data set cannot be confirmed Equality of variance cannot be confirmed Unear Interpolation (200 Resamples)

Point % SD 95% CL(Exp) Skew 1C05 >100 IC10 >100 ,

IC15 >100 I.LI I

LU .

IC20 >100 IC25 >100 0.91 IC40 >100 0.8*

IC50 >100 0.7' C 0.6 0.4 0.3-0.2 0.1.

0.0 . . . . . * . . . .

0 50 100 150 Dose %

Page 1 ToxCalc v5.0.23 Reviewed

Acute Abalone Test-96 Hr Survival Start Date: 5/17/2006 Test ID: FGL0506230 Sample ID: CAOOOOOOO End Date: 5/21/2006 Lab ID: CAABC Sample Type: EFFl-Industrial Sample Date: -5/17/2006 Protocol: EPAA 91-EPA Acute Test Species: Hr-Haliotus rufescens Comments: DCPP Discharge 001 acute Dose-Response Plot 1

0.9*

0.8 0.7' S0.6

ý o .5 0.4 0.3 0.2 0.1 0.

8Z Page 2 ToxCalc v5.0.23 Reviewed by-

Acute Abalone Test-96 Hr Survival Start Date: 5/17/2006 Test ID: FGL0506230 Sample ID: CAOOOOOOO End Date: 5/21/2006 Lab ID: CAABC Sample Type: EFFi-Industrial Sample Date: 5/17/2006 Protocol: EPAA 91-EPA Acute Test Species: Hr-Haliotus rufescens Comments: DCPP Discharqe 001 acute Auxiliary Data Summary Conc-% Parameter Mean Min Max SD CV% N NControl Temp C 14.41 14.20 14.80 0.21 3.20 10 100 14.10 14.00 14.20 0.07 1.83 10 N Control pH 7.94 7.70 8.00 0.13 4.48 10 100 7.90 7.80 8.00 0.08 3.62 10 N Control DO mg/L 7.69 7.30 7.90 0.22 6.08 10 100 7.81 7.60 8.20 0.20 5.68 10 N Control Salinity ppt 33.00 33.00 33.00 0.00 0.00 10 100 33.00 33.00 33.00 0.00 0.00 10 Page 3 ToxCalc v5.0.23 Reviewed by:

YL

Subcontract Chain of Custody REPORT INFORMATION:

CLIENT DETAILS:

Client: FGL Environmental Rush Analysis: 0l 5 days 0 4 days 0 3 days 0 2 days 0] 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months Address: 853 Corvoration Street Santa Paula, CA 93061 Electronic Data Transfer: YES / NO Phone: (805) 659-0910 Fax: (805) 525-4172 Project: 1o0 , Contact Person: If yes, To: State Client Other n - a - - - - 9 - - , - a * -

a- -

0 0vo 43L RZ' C,,

60 2.

0, U

SAMPLING: M C/), t?

zo Sampler(s),_- ___ __ _ _....

E Cn U z Q,

0. C 06 0 z

U C C ,Z2

1; I -0

-4 4 - U-I- C,) X0.

FFF Sam ple Location/Dcscription Date Time Number Sampled Sampled

-1 ol 1TJi WI 131

- -1 LI a -W[ Nif -7 CUSTODY:

Relinquished bI Date: 1 Time:,______ Relinquished by: Date: Time:

Received by: Date. aime: '77-A0 Received by: Date: Time:

I iI I Ii i II Ol I

ENVIRONMENTAL C'HAlN Ut"GU5U'I' Y AND ANALYSIS REQUEST DOCUMENT ORIGINAL SECTION 1117 Rush Analysis (surcharge will apply):

Client:Ftf OtAID (h-ANDK) - (-,kPJA15V-U 13 New Customer toerNumber O 5 Day U 4 Day U 3 Day P_

0 Address: U 2 Day U 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months Comp Sampler Set up Date: Rush pre-approval by lab:

Phone: -O1 , . Time:

Electronic Data Transfer: yes __ no Mileage:

FAX: - If yes, To: State__

-___en______

Project name: - Shipping Charge: Pickup Charge: Lab number:

Contact person: - ~ k Q ) A Billing Information (if different from above)

Name:

Address:

Phone:

FAX:

Contact person:

Purchase order/contract/FGL quote number.

Pre Log Required: yes Frequ ency: Monthly 0 Weekly 0 Quartely 0 Otherw

'REMARKS SECTION V by mid.abpci w Me -a~ midceiiditi d eels-I.uuiad doeti Dw.1-1J0 Time CORPORATE OFFICE & LABORATORY P.O. Box 2721853 Cporiafim Sreet Santo Psmli. CA 93061-02 Tel: (805) 392-2000 FAX: (305) 5254172

APPENDIX 6 DIABLO CANYON POWER PLANT Chronic Bioassay May 23-25, 2006

IrAQUATIC S'BIOASSAY &

\. CONSULTING LABORATORIES, INC.

TOXICITY TESTING

OCEANOGRAPHIC RESEARCH June 6, 2006 Ms. Vicki Ziegler FGL Environmental P.O. Box 272 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 Toxicity of Effluents and Receiving Waters to West CoastMarine and EstuarineOrganisms, EPA-R-95/136. Results were as follows:

CLIENT: PGE Diablo Canyon SAMPLE I.D.: PGE Diablo Canyon - DCPP Discharge 001 604971 DATE RECEIVED: 22 May - 06 ABC LAB. NO.: FGL0506.245 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: 5/23/2006 Test ID: FGL0506245 Sample ID: CAOOOOOOO End Date: 5/252006 Lab ID: CAABC Sample Type: EFFI-POTW Sample Date: 5/22/2006 Protocol: MBP 90-Anderson et al. Test Species: HR-Haliotis rufescens Comments: Discharge 001 (604971)

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 1.0000 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 1.0000 1.0000 1.5208 1.5208 1.5208 0.000 5 27.50 16.00 1.0000 1.0000 Auxiliary Tests Statistic Critical Skew Kurt Shapiro-Wilk's Test indicates normal distribution (p > 0.01) 1 0.9 Equality of variance cannot be confirmed Hypothesis Test (1-tail, 0.05) NOEC LOEC ChV TU Steers Many-One Rank Test 100 >100 1 Treatments vs N Control Unear Interpolation (200 Resamples)

Point % SD 95% CL(Exp) Skew IC05 >100 IC10 >100 IC15 >100 1.0 IC20 >100 IC25 0.91

>100 IC40 >100 0.8.

IC50 >100 0.7.

00.6 o0.51 0.4 0.3 0.2-0.1 0.0 p 0 50 100 150 Dose %

Page I ToxCalc v5.0.23 Reviewed by- t.-,-

Abalone Larval Development Test-Proportion Normal Start Date: 5/2342006 Test ID: FGL0506245 Sample ID: CAOOOOOOO End Date: 5/25r2006 Lab ID: CAABC Sample Type: EFFI-POTW Sample Date: 5/22/2006 Protocol: MBP 90-Anderson et al. Test Species: HR-Haliotis rufescens Comments: Discharge 001 (604971)

Dose-Response Plot 0.9 0.8 0.7 0 0.6 S 0.5 p0.4 L0.3 0.2 0.1 0C 0

U z

2 Page 2 ToxCalc v5.0.23 Reviewed by:.!

Abalone Larval Development Test-Proportion Normal Start Date: 5/23/2006 Test ID: FGL0506245 Sample ID: CA0000000 End Date: 5/25/2006 Lab ID: CAABC Sample Type: EFF1-POTW Sample Date: 5/22/2006 Protocol: MBP 90-Anderson et at. Test Species: HR-Haliotis rufescens Comments: Discharge 001 (604971)

Auxiliary Data Summary Conc-% Parameter Mean Min Max SD CV% N N Control Temp C 15.40 15..30 15.50 0.14 2.44 2 10 15.40 15..30 15.50 0.14 2.44 2 18 15.40 15..30 15.50 0.14 2.44 2 32 15.40 15.30 15.50 0.14 2.44 2 56 15.40 15..30 15.50 0.14 2.44 2 100 15.40 15.30 15.50 0.14 2.44 2 N Control pH 7.95 7..90 8.00 0.07 3.34 2 10 7.95 7.90 8.00 0.07 3.34 2 18 7.95 7..90 8.00 0.07 3.34 2 32 7.95 7..90 8.00 0.07 3.34 2 56 7.95 7.90 8.00 0.07 3.34 2 100 7.95 7..90 8.00 0.07 3.34 2 N Control DO 6.60 6..20 7.00 0.57 11.40 2 10 6.65 6.20 7.10 0.64 12.00 2 18 6.65 6..20 7.10 0.64 12.00 2 32 6.70 6.20 7.20 0.71 12.55 2 56 6.70 6.20 7.20 0.71 12.55 2 100 6.60 6.00 7.20 0.85 13.96 2 N Control Salinity ppt 34.00 34..00 34.00 0.00 0.00 2 10 34.00 34. 00 34.00 0.00 0.00 2 18 34.00 34. 00 34.00 0.00 0.00 2 32 33.00 33..00 33.00 0.00 0.00 2 56 32.00 32. 00 32.00 0.00 0.00 2 100 32.00 32. 00 32.00 0.00 0.00 2 Page 3 ToxCalc v5.0.23 Reviewed by:-_.-

WON, Subcontract Chain of Custody REPORT INFORMATION:

CLIENT DETAILS:

Client: FGL Environmental Rush Analysis: 0 5 days 0 4 days 0 3 days 0 2 days 0 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months Address: 853 Cororation Street Santa Paula. CA 93061 Electronic Data Transfer: YES / NO Phone: (805) 652-0910 Fax: (805) 525-4172 Project: eC2ý1 Contact Person: If yes, To: State Client Other q , q r y y - p p p- p- -

H 0

9. oz '0 2 N 57 .5 U,

U z CA2 U,

E 0

0 -c 0 U

~Ij

- 0 .

z U . US

.0 U -J 0 U, U V~

U, U,

Sample Location/Descriplion Date Time z Nutn)er Sampled Sampled CUSTODY:

Relinquished by: Date: J. Time: 3'd Relinquished by: Date: Time:

Received by: Date: J " Time: s 2, . Received by: Date: Time:

" A'QUATIC r(BoASSAY &

CONSULTING LABORATORIES. INC.

TOXICITY TESTING

OCEANOGRAPHIC RESEARCH CHRONIC ABALONE DEVELOPMENT BIOASSAY DATE: 23 May- 06 STANDARD TOXICANT: Zinc NOEC = 56.00 ug/h IC25 = 62.24 ug/l IC50 = 74.83 ug/l Yours very truly, Thomas (Tim) Mikel Laboratory Director 29 NORTH OLIVE STREET, VENTURA, CA 93001 9 (805) 643-5621

Abalone Larval Development Test-Proportion Normal Start Date: 5/23/2006 Test ID: ABS052306 Sample ID: REF-Ref Toxicant End Date: 5/25/2006 Lab ID: ABC LABS Sample Type: ZNSO-Zinc sulfate Sample Date: 5/23/2006 Protocol: MBP 90-Anderson et al. Test Species: HR-Haliotis rufescens Comments: Standard Toxicant 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 1.0000 32 1.0000 1.0000 1.0000 1.0000 1.0000 56 0.7200 0.6500 1.0000 1.0000 1.0000 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 Conc-ugtL Mean N-Mean Mean Min Max CVM 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 1.0000 1.0000 1.5208 1.5208 1.5208 0.000 5 27.50 17.00 1.0000 1.0000 32 1.0000 1.0000 1.5208 1.5208 1.5208 0.000 5 27.50 17.00 1.0000 1.0000 56 0.8740 0.8740 1.3027 0.9377 1.5208 23.020 5 22.50 17.00 0.8740 0.8740 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-Wifies Test indicates non-normal distribution (p <= 0.01) 0.68107 0.868 -0.9365 2.8192 Equality of variance cannot be confirmed Hypothesis Test (1-tall, 0.05) NOEC LOEC ChV TU Steel's Many-One Rank Test 56 100 74.8331 Treatments vs Control Unear Interpolation (200 Resamples)

Point ugfL SD 95% CL(Exp) Skew IC05 41.524 7.157 34.005 66.538 0.7944 IC10 51.048 6.408 38.010 65.076 0.0358 IC15 57.208 5.052 39.697 65.296 -0.4780 1.0-IC20 59.725 3.860 45205 67.337 -0.7006 1 Ic125 62.243 3.370 50.713 69.379 -0.4885 009 IC40 69.794 2.645 61.152 75.503 -0.3947 0.8 IC50 74.828 2.204 67.627 79.586 -0.3947 .-,,

0.6 C

10.4 1%0 0 50 100 150 200 Dose ugfL Page I ToxCalc v5.0.23 Reviewed by:..__.

Abalone Larval Development Test-Proportion Normal I REF-Ref Toxicant Start Date: 5/23/2006 Test ID: ABS052306 Sample ID:

End Date: 5/25/2006 Lab ID: ABC LABS Sample Type: ZNSO-Zinc sulfate Sample Date: 5/2312006 Protocol: MBP 90-Anderson et al. Test Species: HR-Hatiotis rufescens Comments: Standard Toxicant Dose-Response Plot 0.9.

0.8 20.7, o 0.6.

00.4.

I. 0.3 0.2 0.1 Page 2 ToxCalc v5.0.23 Reviewed by-. i"

Abalone Larval Development Test-Proportion Normal Start Date: 5/23/2006 Test ID: ABS052306 Sample ID: REF-Ref Toxicant End Date: 5/25/2006 Lab ID: ABC LABS Sample Type: ZNSO-Zinc sulfate Sample Date: 5/23/2006 Protocol: MBP 90-Anderson et al. Test Species: HR-Haliotis rufescens Comments: Standard Toxicant Auxiliary Data Summary Conc-ug*L Parameter Mean Min Max SD CV% N Control Temp C 15.40 15.30 15.50 0.14 2.44 2 18 1540 15.30 15.50 0.14 2.44 2 32 15.40 15.30 15.50 0.14 2.44 2 56 15.40 15.30 15.50 0.14 2.44 2 100 15.40 15.30 15.50 0.14 2.44 2 180 15.40 15.30 15.50 0.14 2.44 2 Control pH 7.95 7.90 8.00 0.07 3.34 2 18 8.00 8.00 8.00 0.00 0.00 2 32 8.00 8.00 8.00 0.00 0.00 2 56 8.00 8.00 8.00 0.00 0.00 2 100 8.00 8.00 8.00 0.00 0.00 2 180 8.00 8.00 8.00 0.00 0.00 2 Control DO mg/L 6.60 6.20 7.00 0.57 11.40. 2 18 6.75 6.50 7.00 0.35 8.81 2 32 6.75 6.50 7.00 0.35 8.81 2 56 6.75 6.50 7.00 0.35 8.81 2 100 6.75 .6.50 7.00 0.35 8.81 2 180 6.75 6.50 7.00 0.35 8.81 2 Control Salinity ppt 34.00 34.00 34.00 0.00 0.00 2 18 34.00 34.00 34.00 0.00 0.00 2 32 34.00 34.00 34.00 0.00 0.00 2 56 34.00 34.00 34.00 0.00 0.00 2 100 34.00 34.00 34.00 0.00 0.00 2 180 34.00 34.00 34.00 0.00 0.00 2 Page 3 ToxCalc v.0.23 Reviewed by.__ !

ENVIRONMENTAL CHAIN OF CUSTODY AND ANALYSIS REQUESTDOCUMENT ORIGINAL I -itf-"1101;rl'INIýOltiNIiVI'ION SECTION III I Rush Analysis (suirhare will apply):

O 5 Day i 4 Day U 3 Day O 2 Day U 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months Rush pre-approval by lab:

Elecronic Data Thnsfer: yes no If yes, To: State Client - 7 ler

'Q'-7 I Lab number : - 0

,'REMARKS SECTION V ICSTOYs:.w m .eltouwee byamd logo ~m mdconfibone ndle fey.. f dindocouses RdInquhbeib -Dlem __ __im __

Reied Dole Tm J,0. Recevdr.d brwDweli e___

Relluqule b;: Relin:u_____lim---Pet w.lim, *l Reevdb. Df r CORPORATE OFICE A LABORATORY UrImPW &i MUflA-75)-.. t P.O. Box 272853 Corporation Street Suits Pad. CA 93061 .0272 Tel: (805) 92-2005 25M0 Slaproach Red Stocktme, CA 95J215; Tel: (209) 942-0181 K Ted: (55 734-9473 Mobile: (559) 737.23" FAX: (805) 525-4172 FAX: (209) 942-0423 WAY 1o0 "O 7AAAI4

ENCLOSURE ERRATA FOR 4 th QUARTER 2005 NPDES DISCHARGE MONITORING REPORT FOR DIABLO CANYON POWER PLANT ERRATA: The 4t quarter 2005 Discharge Self Monitoring Report (DSMR) form for the annual oil and grease sample for discharge point 016 had no data, and had no reference that there was no discharge from that point. The form should have indicated that there was no discharge from discharge point 016.

Please replace page (A)4 for October 2005 in the 4h quarter 2005 report with the enclosed corrected page.

CALIFORNIA REGIONALWATER QUALITY DISCHARGE SELF MONITORING REPORT PACFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 4 FACILITY I.D. YEAR/MO/DAY YEARIMO/DAY STATE COOE NPOES PERMIT#

3402003001 BEGINNING 05/10/01 ENDING 06/10/31 06 CA0003751 STATION EFFLUNIW 009 ETFLUENT013 EFFLUENT 015 EFFLUENT 016 EFFLUENT0I7 INFLUENT EFFLUEBT 001 ANALYSIS OL &GREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE PCBS PCBIS UWTS w fllwmo ff*I w u'1 SMPLTYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREC. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 1

2 3

4 5

6 7

8 9

10 11 12 13 14 15 16 17 ND(5) 10 ND(5) 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLYAVG ND(S) 10 ND(S) NO MONTHLY HIGH ND(S) 10 ND(5) DISCHARGE MONTHLY LOW ND(S) 10 ND(s)

TIMES EXCEEDED MOAVG 15=0 MO AVG 15=0 MO AVG 15=0 MOAVG 15=0 MOAVG 15=0 NO UMIT NO UMIT E EXCEEDED DMAX 20=0 DMAX 20=0 DMAX 2O=0 DMAX 20=0 DMAX20=O ES EXCEEDED REMARKS: ° NUMBER OF SAMPLES TAKEN DURING THE DAY.

THESE ANNUAL PARAMETERS SAMPLED AND ANALYZED INNOVEMBER. SEE COVER LETTER.

DCL-2006-531, in Accordance with Order 90-09, NPDES No. CA0003751, Second Quarter 2006 Report on Discharge Monitoring at Diablo Canyon

Contents

Text

Dear Mr. Briggs:

Title:

Title:

SUMMARY

Enclosure:

SUMMARY

r I ==r =l *lPAGE: (Q) 3

Dear Ms. Ziegler:

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DCL-2006-531, in Accordance with Order 90-09, NPDES No. CA0003751, Second Quarter 2006 Report on Discharge Monitoring at Diablo Canyon

Text

Dear Mr. Briggs:

Title:

Title:

SUMMARY

Enclosure:

SUMMARY

r I ==r =l *lPAGE: (Q) 3

Dear Ms. Ziegler:

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