Text

Transmittal of First Quarter 2003 Report on Discharge Monitoring at Diablo Canyon Power Plant
	ML031190258
Person / Time
Site:	Diablo Canyon
Issue date:	04/18/2003
From:	Becker J; Pacific Gas & Electric Co
To:	; Office of Nuclear Reactor Regulation, State of CA, Regional Water Quality Control Bd
References
	DCL-2003-530
	Download: ML031190258 (100)
	v • d • e

!r' Pacific Gas and I

Electric Company James R. Becker Vice Presicent -Diablo Canmon Operations and Station Directc Diablo Canvon Power Plan:

PO Box 56 Avda Beach CA 93424 B05 545 3462 Fax 8055454234 April 18, 2003 PG&E Letter DCL-2003-530 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 First Quarter 2003 Report on Discharge Monitoring at Diablo Canyon Power Plant (Enclosure 1).

Facility Name:

Address:

Contact Person:

Job

Title:

Phone Number:

Pacific Gas & Electric Company Diablo Canyon Power Plant P.O. Box 56 Avila Beach, CA 93424 Drew A. Squyres Supervisor, Environmental Operations 545-4439 WDRINPDES Order Number:

Order No. 90-09, NPDES No. CA0003751 Type of Report: (check one)

QUARTERLY ANNUAL El Quarter: (check one):

1 st 3

2nd 3rd El 4 th El1 Year:

2003 (Annual Reports for DCPP are Jan-Dec)

Violation(s) (Place an X by the appropriate choice):

EK No (there are no violations to report)

Cl Yes

"' ~j' S

PG&E Letter DCL-2003-530 Mr. Briggs, CRWQCB April 18, 2003 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) WDRINPDES LimitiCondition:

e) Dates of Violation(s)

(reference page of report/data sheet):

f) Explanation of Cause(s):

(attach additional informabon as needed) g) Corrective Action(s):

(attach additional informabon as needed)

(If 'YES", see overview section of attached report)

PG&E Letter DCL-2003-530 Mr. Briggs, CRWQCB April 18, 2003 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 Drew Squyres at (805) 545-4439.

Sincerely, Name:

James R. Becker

Title:

Vice President-Diablo Canyon Operations and Station Director 2003530/RDH/kmo r

PG&E Letter DCL-2003-530 Mr. Briggs, CRWQCB April 18, 2003 Page 4 cc:

Michael Thomas, CCRWQCB 895 Aerovista, Suite 101 San Luis Obispo, CA 93401-7906 Debra Johnston California Department of Fish and Game 20 Lower Ragsdale, Suite 100 Monterey, California 93490 Regional Administrator, Region 9 U. S. Environmental Protection Agency 75 Hawthorne Street San Francisco, CA 94105 Attention: Carey Houk (W-5-3)

Resident Inspector, David Prouix U.S. Nuclear Regulatory Commission Diablo Canyon Power Plant 10415 Regional Administrator U.S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Dr., Suite 400 Arlington, TX 76011-8064 Director, Division of Reactor Projects U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Dr., Suite 400 Arlington, TX 76011-8064 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555-001 Enclosure 7\\

OVERVIEW

1. During the first quarter of 2003, discharges occurred from Discharge Paths 001 (once through cooling water), 001B, 001D, 001E, 001F, 001G, 001H, 001J, 001L, 001M, 001N, 001P, and 002 through 15. No discharges occurred from Discharge Paths, 0011, 001K, 016, 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 first quarter of 2003, system mishaps and maintenance activities that required draining of closed cooling water systems were performed and are summarized below. PG&E received concurrence from the CCRWQCB in a letter dated July 19, 1995 and another letter dated May 19, 1 997(PG&E Letter DCL-95-156 and PG&E Letter DCL-97-533, respectively) regarding the use of glutaraldehyde and isothiazolin to control microbiological growth and corrosion in PG&E'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.

On January 2, 2003, it was identified that between December 24, 2002, and January 2, 2003, a small leak of closed cooling water from the Unit 1 Intake Cooling Water system (ICW) occurred. The total volume over this period of time was estimated to be 1660 gallons. The leak rate was estimated to be 6.5 gallons per hour and flowed into the once-through circulating cooling water system at the intake. The leak rate of 6.5 gallons per hour is significantly below the allowable flow rate of 250 gallons per minute and NOEC described in the above letters. The leak was repaired on January 2, 2003.

Date System Volume Glutaraldehyde Isothiazolin

{gal)

(mg/l)

(mgll) 12/24/02 to Unit 1 1CW 1660 0

0 1/02/03 2/04/03 Unit2 ICW 1150 0

5 2/11/03 Unit 2 CCW 4200 0

0 3/17/03 Unit2 CCW 1

213 0

4. On February 16, 2003, approximately 150 gallons of water containing dilute hydrazine (746 ppm) flowed to the pavement near the Unit 2 containment due to a misaligned valve and filling activity. At that time rain washed this water into the deluge collector sump. The sump holds about 17,000 gallons so the water was significantly diluted.

The sump is designed to process water through a passive oil water separator system prior to flowing to a retention basin near the intake cove. No processed water entered the ocean. The Regional Board was notified on February 16, 2003, of this event as a conservative measure even though there was no actual release to the creek or ocean.

Analytical results for hydrazine collected from sediment samples in the retention basin were below published toxic levels.

PG&E Letter DCL-2003-530 ENCLOSURE 1 FIRST QUARTER 2003 REPORT ON DISCHARGE MONITORING AT DIABLO CANYON POWER PLANT

PACIFIC GAS AND ELECTRIC COMPANY NUCLEAR POWER GENERATION First Quarter 2003 REPORT ON DISCHARGE MONITORING AT DIABLO CANYON POWER PLANT (NPDES No. CA0003751)

PACIFIC GAS AND ELECTRIC COMPANY First Quarter 2003 REPORT ON DISCHARGE MONITORING AT DIABLO CANYON POWER PLANT TABLE OF CONTENTS page OVERVIEW..............................................1

SUMMARY

OF MONITORING PROGRAM A.

Monitoring of Plant Influent and Effluent.......................... 2 B.

Monitoring of Receiving Waters...................................

2 C.

Acti-Brom Treatment Program...................................

3 APPENDIX 1: NPDES Discharge Points APPENDIX 2: Influent and Effluent Monitoring - January 2003 APPENDIX 3: Influent and Effluent Monitoring - February 2003 APPENDIX 4: Influent and Effluent Monitoring - March 2003 APPENDIX 5: Acute Bioassay, January 8 -12, 2003 APPENDIX 6: Chronic Bioassay, January 9 -11, 2003

SUMMARY

OF MONITORING PROGRAM A.

Monitoring of Plant Influent and Effluent

1.

The results of the January, February, and March 2003 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 January 8 -12, 2003, is included in Appendix 5. The bioassay results show that acute toxicity was 0.00 (no mortality).

3.

The laboratory report for one chronic bioassay on water sampled from Discharge 001, performed January 9 - 11, 2003, is included in Appendix 6. The bioassay results show that chronic toxicity was 1.0 (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 first 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 (DCL-99-503) from PG&E dated January 8,1999. This program includes tasks from the Ecological Monitoring Program (EMP) with additional stations and increased sampling frequencies.

This program 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 their periodic report for this program.

C.

Acti-Brom Treatment Program Diablo Canyon Power Plant is continuing its use of the proprietary chemical Acti-Brom to control the growth of macrofouling organisms in its main circulating water conduits.

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 Acti-Brom in combination with sodium hypochlorite (NaOCI). Each injection attempts to achieve a target concentration of 200 parts per billion Total Residual Oxidant (TRO) when measured at the inlet waterbox of the condenser.

Discharge TRO, measured at the plant outfall, remained below NPDES limitations.

Unit 1 started the first quarter with simultaneous sodium hypochlorite and Acti-Brom treatment six times daily. Acti-Brom injections were turned off on March 5, 2003 in anticipation of a tunnel cleaning in April 2003. For the remainder of March, Unit 1 conduits received injections of sodium hypochlorite six times daily to control microfouling in the condensers with a brief interruption in late March due to a programming error.

Conduit 2-1 began the quarter with injections of sodium hypochlorite six times daily to control microfouling in the condensers in anticipation of the 2R1 1 refueling outage.

Conduit 2-2 received simultaneous sodium hypochlorite and Acti-Brom treatment six times daily until early January when Acti-Brom was shut down in anticipation of 2R1 1.

Both conduits received microfouling injections six times daily until the end of January when Unit 2 injections were shut down for the 2R1 1 refueling outage.

Unit 2 injections remained off until early March when one of the circulating water pumps was returned to service. Through the remainder of March, treatment alternated between the two conduits of Unit 2 as the circulating water pumps were turned on and then shut down for 2R1 1 related activities.

At the end of 2R1 1, an experiment was initiated to test the effectiveness of sodium bromide compared to Acti-Brom in controlling macrofouling. For the next 12 to 16 months, conduit 2-1 will be receiving simultaneous injections of sodium hypochlorite and Acti-Brom, while conduit 2-2 will be receiving simultaneous injections of sodium hypochlorite and sodium bromide.

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 Bio Lab and Storm Water Runoff 005, 008, 009, 013, 014, 015 Yard Storm Drains 006, 007, 010, 011, 012 Storm Water Runoff 016 Bio Lab Seawater Supply Pump Valve Drain 017 Seawater Reverse Osmosis System Blowdown Drain

APPENDIX 2 DIABLO CANYON POWER PLANT Influent and Effluent Monitoring January 2003

CAUIFORNIA 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 AVILABEACH CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE: (M) I FACILITY I D YEAR I MO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT 4 3 402003001 BEGINNING 03 I1 OI 01 ENDING 03 1 O1 l 31 VI CA0003751 STATION INFLUENT EFFLUENT0W1 DELTATEMP EFFLUENT0C1 INFLUENT EFFLUENT W1 EFFLUENT OOI EFFLUENT0W2 ANALYSIS TEMPERATURE TEMPERATURE TEMPERATURE FLOW pH pH pH pH UN1TS DEGREES F

DEGREES F

MGD pH UN1TS pH UNITS pH UNITS pH UNITS SMPLTYPE METERED METERED METERED RECORDED GRAS GRAB GRAB GRAB FREQ CONTINUOUS CONTINUOUS CONTINUOUS DAILY MONTHLY MONTHLY

1)

MONTHLY MONTHLY 1

553 745 192 2486 2

55 9 750 191 2486 3

562 753 191 2486 80 80 2

78 2

80 4

559 750 191 2486 5

558 749 191 2486 6

55 7 74 8 191 2486 7

556 747 191 2486 8

558 74 9 191 2486 9

55 9 750 191 2486 10 56 4 754 190 2486 11 566 755 189 2486 12 568 758 190 2486 13 56 9 76 0 191 2486 14 567 754 187 2486 15 566 757 191 2486 16 570 76 1 191 2486 17 571 76 1 190 2486 18 568 760 192 2486 19 56 8 759 191 2486 20 56 B 759 191 2486 21 569 760 191 2486 22 57 2 763 191 2486 23 571 759 188 2486 24 566 754 188 2486 25 564 752 188 2486 26 566 754 188 2486 27 567 754 187 2486 28 557 745 188 2486 29 562 749 187 2486 30 561 747 186 2486 31 56 746 18 6 2486 MONTHLY AVG 56 4 754 19 0 2486 80 80 78 80 MONTHLY HIGH 57 2 76 3 19 2 2486 80 80 78 80 MONTHLYLOW 553 745 186 2486 80 80 78 80 ES EXCEEDED NO UMIT NO LIMIT MAX 22 = 0 MAX 2760 0 NO LIMIT NO LIMIT NO LIMIT NO UMIT IMES EXCEEDED

( )

IMES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY EXCEPT DURING DEMUSSEUNG DAILY WHEN DISCHARGING CHEMICAL CLEANING WASTES FROM DISCHARGES 001 D. F, 1. L. AND/OR M

CALIFORNIA REGONAL WATER OUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGON PO BOX 56 81 HIGUERA AVILA BEACH CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE: (M) 2 FACLITY I D YEAR I MO I DAY YEAR I MO DAY STATE CODE NPDES PERMIT' 3402003001 BEGINNING 03 / 01 I001 ENDING 031 01/ 31 00 CA0003751 STATION EFFLUENT 003 EFFLUENT 00C4 EFFLUENT OOIN EFFLUENTO1OP EFFLUENT 003 EFFLUENT 001F EFFLUENT 0L1 EFFLUENT O01 ANALYSIS pH pH OIL1GREASE OIL 3 GREASE OL & GREASE OIL & GREASE T CHLOR RES CHLORINE USED UNITS pH UNITS pH UNITS mgin mAt mgt ugw Ibwday SMPL TYPE GRAB GRAS COMPOSITE GRAB GRAB GRAB GRAB RECORDED FREO MONTHLY MONTHLY WEEKLY WEEKLY fl WEEKLY

(-I MONTHLY 2 va CYCLE MONTHLY 1

12 43 461 2

3 ND(5) 12 52 461 3

80 80 3

12 47 461 4

12 52 461 5

12 52 461 6

12 62 468 7

12 47 461 8

12 43 421 9

3 ND(S) 12 43 475 10 12 47 490 11 12 47 504 12 12 39 504 13 12 43 504 14 12 47 499 15 3

ND(5) 12 43 490 16 12 57 509 17 12 39 518 18 12 35 518 19 12 35 518 20 12 35 518 21 12 32 518 22 12 33 526 23 3

ND(5) 12 36 523 24 12 36 482 25 12 34 461 26 12 30 461 27 12 29 461 28 3

ND(S) 12 33 461 29 12 32 461 30 12 36 461 31 10 39 384 MONTHLY AVG 80 80 ND(S)

NO NO 3

4 1 481 MONTHLY HIGH 80 B 0 ND(S)

DISCHARGE DISCHARGE 3

62 526 MONTHLY LOW 80 50 ND(S) 3 29 384 MES EXCEEDED NOULMIT NOLIMIT MOAVG15=0 MO AVG 1S= 0 MO AVG 15 =0 MO AVG 15 0 I MAX 200 0 NO LIMIT ES EXCEEDED DMAX20=0 DMAX 20 '0 DMAX20=0 D MAX 20 =0 IMES EXCEEDED REMARKS

NUMBER OF SAMPLES TAKEN DURING THE DAY WHEN OOIN IS DISCHARGING TO O01P

-WHEN 0OIP IS DISCHARGING TO 003

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 I() 3 FACILITY I D YEAR I MO I DAY YEAR/ MO) DAY STATE CODE NPDES PERMIT 4 3402003001 BEGINNING 03 / 0I 01 ENDING 03 / 01 131 06 CA0003751 STATION EFFO0IN>003 EFF tO1N=>003 EFFWLENTOO7 D

EFFLUENT00IF ANALYSS TOTL COLJFORM FECAL COLIFORM SUSPENDED SOLIDS SUSPENDED SOLICS UNITS MPwLort MPNM00rnt mgI 1st FLTR mo/l 2nd FLTR mg/I NET mgo/

1st FLTR mgtt 2nd FLTR mf/i NET SMPL TYPE GRAB GRAB GRAB GRAB FREO 4 TtMESAHEEK 4 TIMESEEtK MtONTHLY MONTHLY 2

1 ND(5) 3 3

ND(5) 2 4

2' 1

2 ND(5) 4 5

6 7

8 9

10E2ED I

<ND()

11 12 13 14 2

NNG(5) 15 2

17 F

17 16 17 18 19 20 24 24 21 22 23 24 25 26 27 28 15 15 29 30 31 22 22 MONTHLY AVG NO NO 11 ND(5)

.MONTHLY HIGH DISCHARGE DISCHARGE 47 ND(5)

MONTHLY LOW ND(S)

ND(5)

MS EXCEEDED 80% SMPLS'lK MEAN>200=

NO LIMIT NO LIMIT MO AVG 30 = 0 NO LIMIT NO LIMIT MO AVG 30 = 0 MS EXCEEDED 90 %SMPLS>400 D MAX 100 =

D MAX 100 =0 IMS EXCEEDED I MAX >1OK 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 56 81 HIGUERA AVILA BEACH CALIC 93424 SAN LUIS OBISPO CA 93401 PAGE: (M) 4 FACILITY I D YEAR I MO I DAY YEARI MOI DAY STATE CODE NPDES PERMIT t 3 402003001 BEGINNING 03 1 01101 ENDING 031 01/ 31 06 CA0003751 STATION EFFLUENT001G EFFLUENT 001H ANALYSIS SUSPENDED SOUDS SUSPENDED SOUDS UNITS mg/i Ist FLTR mg/ 2nd FLTR mgi NET mgli Is FLTR W 2nd FLTR mKM NET SMPL TYPE GRAB GRAB FRED MONTHLY MONTHLY 1

I 1 ND(5) 2 3 L ND(5) 4 5

6 7

8 9

1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 20 21 22 23 24 25 26 27 28 29 30 3 1 MONTHLY AVG ND(5)

ND(5)

MONTHLY HIGH ND(5)

ND(S)

MONTHLY LOW ND(5)

ND(S) iMSEXCEEDED NO LIMIT NOLIMIT MO AVG 30--0 NOULMIT NOLIMIT MO AVG 30=0 MS EXCEEDED IDMAX 100= 0 D MAX 100= 0 ES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO 0ONTROL BOARD DIABLO CANYON NUCLEAR POWER PLAN-CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE. (M) 5 FACILITY I D YEAR / MO / DAY YEARI MO / DAY STATE CODE NPDES PERMIT t 3402003001 BEGINNING 03 1 01 01 ENDING 03 / 01 131 06 CA0003751 STATION EFFLUENT0011 EFFLUENTOOIJ ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS g/1 Ist FLTR mg/I 2nd FLTR mgil NET mg/i 1st FLTR mg/i 2nd FLTR mgxI NET SMPL TYPE GRAB GRAB FREO MONTHLY MONTHLY 2

3 4

5 6

7 1 0 1 2 1 3 14 15 16 1 7 20 21 22 23 24 25 26 27 28 29 30 31 MIONTHLY AVG NO NO MONTHLY HIGH DISCHARGE DISCHARGE MONTHLY LOW MES EXCEEDED NO UMIT NO LIMIT MOAVG30=0 NO UMIT NO UMIT MO AVG 30 = 0 IMES EXCEEDED MAX 100 = 0 MAX t00 = 0 lES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURNG THE DAY

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLAN, CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE. JM) 6 FACIUTY ID YEAR/MO I DAY YEARI MO I DAY STATE CODE NPDES PERMIT 3402003001 BEGINNING 03 I 01 I 01 ENDING 03 1 01 ! 31 06 CA000375 STATION EFFLUENT 01K EFFLUENTOOIL ANALYSIS SUSPENDED SOUDS SUSPENDED SOLIDS LANTS mgvi lIt FLTR mg/I 2nd FLTR mi NET

/ 1st FLTR mg/i 2nd FLTR mg/ NET SMPL TYPE GRAS GRAS FRED MONTHLY MONTHLY 2

3 2

12 ND(5) 4 5

S 7

5 9

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

MONTHLY HIGH DISCHARGE ND(S)

MONTHLY LOW ND(S) lMES EXCEEDED NO UMIT NO LIMIT MO AVG 30 = 0 NO UMIT NO LIMIT MO AVG 30 = 0 MESEXCEEDED DMAX 100 = 0 DMAX 100 = 0 MES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CALIFORNIA REGIONAL WATER CUALITY 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 ORISPO CA 93401 PAGE: (M) 7 FACILITY I D YEAR / MO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT s 3402003001 BEGINNING 03 1 0t I 01 ENDING 03 I 01 1 31 06 CA0003751 STATION EFFLUENT 001M EFFLUENT DO N EFRUENT 00tP ANALYSIS SUSPENDED SOUDS SUSPENDED SLDS SUSPENDED SOLIDS UNITS mgtIIst FLTR mgli 2nd FLTR mg/I NET mgnI mI 1st RTR mg/I 2nd FLTR mgf/ NET SMPL TYPE GRAB COMPOSITE GRAB FRE2 MONTHLY WEEKLY MONTHLY 2

ND(5) 3 2

4 2

1 2

ND(5) 4 5

6 7

8 9

19 1 0 1 1 1 2 1 3 1 4 15 10 1 6 1 7 1 8 1 9 20 2 1 22 23 24 24 25 26 27 28 1 7 29 30 3 1 MONTHLY AVG NO 1 4 ND(5)

NIONTHLY HIGH DISCHARGE 24 ND(5)

.IONTHLY LOW ND(5)

ND(5)

MES EXCEEDED NO LIMIT NO LIMIT MO AVG 30 =0 MO AVG 60 0

NO LIMIT NO LIMIT MO AVG 30 =0 MES EXCEEDED DMAX100 = 0 DOMAX 1 00 = 0 IES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CALIFORNIA REGIONAL WATER OUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTR'C 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) 8 FACILITY I D YEAR/ MO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 03 1 01 01 ENDING 03 / 01 1 31 06 CA000375 STATION EFRULENT 002 EFFLUENT 003 ANALYSIS SUSPENDED

SOLIDS, SUSPENDED SOLIDS UNITS mstI FLTR m/ 2nd FLTP m NET gi st FLTR mg/I 2nd FLTR m NET SMPL TYPE GRAB GRAB FREO MONTHLY MONTHLY 2

3 2

5 2

1 2<

5 4

ND(S) 4 5

6 7

8 9

10 I11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG 5

ND(5)

NONTHLY HIGH 6

ND(S)

MONTHLY LOW ND(S)

ND(S)

MESEXCEEDED NOUMIT NOLIMIT MOAVG30=0 NOUMIT NOUMIT MOAVG30 0 MESEXCEEDED DMAX100 = 0 DMAX 100 = 0 IES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CALIFORNIA REGSONAL WATER CUALITY 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: (N) 9 FACILITY I D YEAR/MO I DAY YEAR! MO /DAY STATE CODE NPDES PERMIT S 3402003001 BEGINNING 03 t 01 01 ENDING 03 / 01 1 31 06 CA0003751 STATION EFFLUENT 003 EFFLUENTOOIN EFFLUENT0Wl EFFLUENT 001 EFFLUENTOWl EFFLUENT0Ct ANALYSIS SUSPENDED SOUDS SETTL SOLIDS T CHROMIUM COPPER NICKEL ZINC UNITS m/ Ist FLTR mW 2nd FLTR mg/I NET m/l t ugh ugh?

ug ugh SMPL TYPE GRAS GRAS GRAB GRAB GRAS GRAB FRED WEEKLY WHEN O I N & W I P 003 WEEKLY MONTHLY MONTHLY MONTHLY MONTHLY 2

ND(O 1) 3 ND(10)

ND(10)

ND(10) 4 5

6 7

8 9

ND(O 1) 10 11 12 13 14 15 ND(O 1) 16 17 18 19 20 21 22 23 ND(O 1) 24 25 26 27 28 ND(O 1) 29 30 31 HONTHLY AVG NO ND(0.11)

NO(10]

ND(10)

ND(10) r ONTHLY HIGH DISCHARGE ND(0.1)

ND(10)

ND(10) lONTHLYLOW ND(O 1)

ND{10)

ND(10)

IMES EXCEEDED NO LIMIT NO LIMIT MO AVG 30 c0 MO AVG 1 0 0 M-MEDI 0 SM-MED 10 =0 SM-MED 30 z0 6M-MED 70=0 IMESEXCEEDED DMAX100 = 0 DMAX30 = 0 DMAX40 = 0 DMAX50 = O DMAX100 = 0 DMAX380 = 0 LIES EXCEEDED IMAX100=0 I MAX 140 = O I MAX 26=0 IMAX 99 = 0 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 81 KGUERA AVLA BEACH CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE. (Q) 1 FACILITY I D YEAR I MO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT r 3402003001 BEGINNING 03 / 01 I 01 ENDING 03 1 01 1 31 06 CA0003751 STATION INFLUENT INFLUENT INFLUENT INFLUENT EFFLUENT00t EFFLUENT DOI D

EFFLUENTocIG EFFLUENT 001H ANALYSIS TCHROMIIUM COPPER NICKEL AA@ONA O(N)

AMMONIA (N)

OIL & GREASE OIL & GREASE OL & GREASE UNITS ugpt ugl ughi ugh1 ugr mg/i nfg1 migt SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FRED JAIAPIJ.AJOCT JAJAPIJULUOCT JAJAP/JUIJOCT IAAPJJULlOCT JAJAP.JUJLOCT JAJAPIJUIJOCT JA/APJJU¶LOCT WLAAPIJULIOCT 1

_3 2

3 3

ND(10)

ND(200)

ND(200) 1 3

4 5

6 7

8 9

10 3

1 1 12 1 3 14 3

15 3

1 6 1 7 1 5 1 8 1 9 20 3

21 22 23 24 25 26 27 28 29 30 31 3

MONTHLY AVG ND(10)

ND(10)

ND(200)

ND(200) 3 3

3 MONTHLY HIGH ND(10)

ND(10)

ND(200)

ND(200) 1 5 3

3 MNTHL.Y LOW ND(10)

ND(10)

ND(200)

ND(200) 3 3

3 ILESEXCEEDED NOUMIT NOUMIT NOLIMIT NOLIMIT 6M-MED3060=0 MOAVG15S0 MOAVG150 MOAVG15=0 MESEXCEEDED DMAX12240 = 0 DMAX20 = 0 DMAX20 = 0 DMAX20 = 0 SEXCEEDED 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 HIGUERA AVILA BEACH. CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE (Q) 2 FACIL`TY I D YEAR I MO I DAY YEAR I MO / DAY STATE CODE NPDES PERMIT =

3402003001 BEGINNING 031 01 I 01 ENDING 03/ O 1 131 06 CA0003751 STATON EFFLuENT0011 EFFLUENT001J EFFLUENT001K EFFLUENTO1IL EFFLUENT W1M EFFLUENT ooP EFFLUENT 002 EFFLUENT 003 ANALYSIS OIL t GREASE IL GREASE OIL & GREASE OIL&GREASE IL A GREASE OIL3GREASE OIL & GREASE IL GREASE UNtTS mg/i mg/i ngiv mgi mgli mg/i mg/i W41 SMPL TYPE GRAB GRAS GRAQ GRAB GRAB GRAB GRAB GRAB FREQ JAIAPKJOIJOCT JAAPIJUAJOCT

.WAPt JOCT JANAPIJJJOCT JAAPIJUIJOCT JA/AP/AUJOCT JItAP/JI/OCT JAIAPIJUJOCT 2

3 2 <

3 3

2<

3 3

4 5

6 7

10 1 1 1 2 13 14 1 5 1 6 1 7 1 8 1 9 20 21 22 23 24 25 26 27 28 29 30 3 1 MONTHLY AVG NO ND NO 3

NO 3

3 3

MONTHLY HIGH DISCHARGE DISCHARGE DISCHARGE 3

DISCHARGE 3

3

<3 MONTHLY LOVI 3

3 3

<3 KMESEXCEEDED MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MESEXCEEDED D MAX 20 = 0 DMAX20=0 DMAX20=0 D MAX 20 = 0 D MAX 20 = 0 D MAX 20 = 0 D MAX 20 = 0 DMAX20 = 0 MES 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 CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE. (Q) 3 FACILITY I D YEAR I MO / DAY YEAR / MO I DAY STATE CODE NPDES PERMIT B 3402003001 BEGINNING 03 1 01 / 01 ENDING 03 1 01 1 31 (6

CA000375' STATION EFFLUENT O04 EPFLUENT001 EFFLUENTctD EFFLUENT001H EFFLUENTOOL EFFLUENT001F ANALYSIS OIL A GREASE TOX CONCEN CADMILM CADMUM CADMILM CADIUM UNITS mgfl TU ugt uvh uv1 ugv SMPL TYPE GRAB GRAB OTRLY COMP OTRLY COMP O TRLY COMP 1 WEK COMP FRED

.JAPIJ.IOCT IAIAPULIOCT l)VAPIJUUOCT JAIAPIJULIOCT lIVAPltJJOCT WWAPIJJOCT

ND(5) 2 3

3 2

ND(S)

ND(S) 4 2

ND(S)

S 6

7 8

0 00 10 11 12 13 14 15 1 6 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MON(THLY AVG 3

0 00 ND(S)

ND(S)

ND(5)

ND(S)

MIONTHLY HIGH 3

0 00 ND(S)

ND(S)

ND(5)

M~ONTHILY LOW 3

0 00 ND(S)

ND(S)

ND(5)

LES EXCEEDED MO AVG 15 0 NO LIMIT NO LIMIT NO LIMIT NO LIMIT IES EXCEEDED D MAX 20 =0 aMSEXCEEDED 6M-MED 0 26-0 REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 31 HIGUERA AV1LA BEACH CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE: (Q) 4 FACILITY I D YEAR I MO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT:

3402003001 BEGINNING 03 1 01 I 01 ENDING 03 1 0t 31 06 CAM003751 STATiON EFFRUENTOO1D EFRUENT001H EFFLUENT 001L EFFLUENT 00IF EFFLUENTOCID EFFLUENT0C1H EFFLUENT OcI1L EFFLUENT 00IF ANALYSIS CHROMIUM T CHROMiUM T CHROMIUM T CHROMLUM COPPER COPPER COPPER COPPER INTS ug' ugW ughl ugvi ug ugvl ugi 'WI SMPL TYPE OTRLY COMP CTRLY COUP OTRLY COMP 1 WEEK COMP OTRLY COMP OTRLY COMP OTRLY COMP 1 WEEK COMP FRED VAPIJUIJKCT JAIAPIAAJOCT JAIAPIJULIOCT.WAPlJUIOCT VAAP/JULIOCT WAPIAAJOCT JAAPIMAJOCT

.WAP/IUUOCT 1

ND(10) 10 2

3 2

ND(10)

ND(10) 2 ND(10) 10 4

2 10 2

170 5

6 7

10 1 1 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 P.ONTHL.YAVG ND(10) 1 0 ND(10)

ND(10) 10 170 ND(10) 10 MONTHLY HIGH ND(10) 20 ND(10)

ND(10) 10 270 ND(10) 10 MONTHLY LOW ND(10)

ND(10)

ND(10) 10 60 ND(10) 10 IMESEXCEEDED NO UMIT NO UMIT NO LIMIT NO LIMIT NO UMIT NO UMIT NO LIMIT NO UMIT IMES EXCEEDED MES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CALFORNIA REGIONAL WATER OUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CC CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH CALIF 93424 SAN LUIS OBISPO CA 9301 PAGE.IO) 5 FACILITY I D YEAR I MO I DAY YEAR / MO / DAY STATE CODE NPDES PERMIT:

3402003001 BEGINNING 03 1 01 101 ENDING 03 1 01 / 31 06 CA0003751 STATION EFFLUENTOID EFRLUEhT00IH EFFLUENTED01L EFFLUENTOOIF EFFLUENTOOID EFFLUENT OOH EFFLUENT 0 IL EFFLUENT00IF ANALYSIS LEAD LEAD LEAD LEAD MERCURY MERCURY MERCURY MERCURY UNITS ugvo ugh1 uug 1IVl twi ug ugI utg SJ.PL TYPE OTRLY COMP QTRLY COMP QTRLY COMP 1 WEEK COMP OTRLY COMP OTRLY COMP OTRLY COMP 1 WEEK COMP FREQ WAPIJtJOCT JWJAPIJULUOCT JAlAP/JULIOCT J.APIlJUOCT JAfAPJJIJUOCT IAJAP/JUIDCT JAIAP/JULOCT JAIAP/JULJOCT 1

10 ND(0 2) 2 3

2 ND(10)

ND(10t 2

ND(0 21 05 4

2 NND(10) 2 ND(02) 5 6

7 8

9 10 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG 1 0 NOCIDO)

ND(10)

ND(0 2)

ND(0 2) 05 IONTHLY HIGHI 10 ND(IDO)

ND{10)

ND(10)

ND(0 2)

ND(0 2) 05 MONTHLY LOW 10 ND(100)

ND(10)

ND(0 2)

ND(0 2) 05 TIMES EXCEEDED NO LIMIT NO UMIT NO LIMIT NO LIMIT NO LIMIT NO UMIT NO LIMIT NO LIMIT IMES EXCEEDED iMES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURJNG THE DAY

_ALIFORNIA 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 AV1LA BEACH CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE: (QI 6 FACILITY LD YEAR I MO I DAY YEARt MO DAY STATE CODE NPDES PERMIT r 3 402003001 BEGINNING 03 / 01 I 01 ENDING 03 1 01 1 31 06 CA0003751 STATION EFFLUENT01D EFFLUENT001H EFFLUENT0011 EFRUENT IooF EFFLUENT01ID EFRUENT001H EFFLUENT OC IL EFFLUENT001F ANALYSIS NICKEL NICKEL NICKEL NICKEL SILVER SILVER SILVER SILVER UNITS

,jgl sw/

ugD1 ugh u1h ugh uvgi ugv SMPL TYPE OTRLY COUP aTRLY COMP OTRLY COMP I WEEK COMP OTRLY COMP OTRLY COMP OTRLY COMP 1 WEEK COMP FREO AAPI.LIOCT JAIAPIA WT WAP/JtLIDCT

.NAPIJC JDIAP/JUUOCT WAPlJJJOCT WAPIJULOCT JVAPI.ULJOCT 1

20 ND(10) 2 3

2 ND(1D)

ND(10) 2 ND(10)

ND(10) 4 2

30 2

ND(10) 5 6

7 8

9 10 1 1 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

.IONTHLY AVG 20 30 ND(10)

ND(10)

MONTHLY HIGH 20 40 ND(10)

ND(10)

NOCI0)

ND(10)

MIONTHLY LOw 20 10 ND(10)

ND(10)

ND(l0)

ND(10)

ND(10) lIMES EXCEEDED NO LIMIT NO LIMIT NO LIMIT NO UIMIT NO UMIT NO LIMIT NO LIMIT NO LJIMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURINGTHE DAY

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION POBOX56 91 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE: (0) 7 FACILITY I D YEAR I MO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT F 3402003001 BEGINNING 03 1 01 101 ENDING 03 1 01 1 31 06 CA000375' STATION EFFLUENT 0010 EFFLUENT O1H EFFLUENT 001L EFFLUENT 001F ANALYSIS ZINC ZINC ZINC ZINC UMTS ugti u9l ugt ugt SMPL TYPE OTRLY COMP OTRLY COMP OTRLY COMP 1 WEEK COMP FREO AJVAPIJULUOCT JA/APiJlJJOCT JAIAPLtJUJCT JAAPIJUOCT 1

A930 2

3 2

60 80 4

2 80 5

6 7

B 9

10 I11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG 930 80 60 80 AONTHLY HIGH 930 80 60 80 MONTHLY LOW 930 80 60 80 TIMES EXCEEDED NO UMIT NO UMIT NO LIMIT NO UMIT MES EXCEEDED ES 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 81 HIGUERA AVILA BEACH CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE: (Q) 8 FACILITY I D YEAR ) MO / DAY YEAR / MO D DAY STATE CODE NPDES PERMIT 9 3402003001 BEGINNING 03 101 101 ENDING 03 f 01 31 06 CACM3751 STATION EFFLUENTXOID EFFLUENTOOIF EFFLUENTOX11 EFFLUENT0W1L. EFFLUENT OOIM ANALYSS COPPER COPPER COPPER COPPER COPPER U;ITS fll91l W1 n

MO mgti SMPL TYPE 24-HR COMP 24-HR COMP 24-HR COMP 24-HR COUP 24-HR COMP FREC METAL CLNG METAL CLNG METAL CLNG METAL CLNG METAL CLNG 2

3 4

5 6

7 1 0 12 1 3 14 1 5 1 6 1 7 1 8 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW IMES EXCEEDED MO AVG 1= 0 MOAVG1=0 -

MOAVG1=0 MOAVG I 0 MOAVG1=0 MESEXCEEDED DMAXl =0 DMAX1 =0 DMAX1 =0 DMAXI =0 DMAX1 =0 ES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PAOFIC 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) 9 FACILITY I D YEAR I MO I DAY YEAR/MO IDAY STATE CODE NPDES PERMIT u 3402003001 BEGINNING 03 1 01 01 ENDING 03 1 01 1 31 06 CA000375' STAnION EFmUENT001D EFFWENT00IF EFFLUENT00t1 EFFLUENT DOI L EFFLUENTOIM ANALYSIS EON IRON IRON IRON IRON ULmTS wt m1 mgvi mol1 m

SMPL TYPE 24-HR COMP 24-HR COMP 24-HR COMP 24-HR COMP 24-HR COMP FREC METAL CLNG METAL CLNG METAL CLNG METAL CLNG METAL CLNG 2

3 4

5 6

7 8

9 10 1 2 1 3 14 15 16 1ONHL AVG 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW ES EXCEEDED MO AVG 1= 0 MOAVG 1 =0 MOAVG 1 0 MOAVG = 0 MOAVG

= 0 ES EXCEEDED DMAX1 =0 DMAX1 =0 DMAXI =0 DMAX1 =0 DMAX1 =0 2MES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO "ONTROL BOARD DiABLO CANYON NUCLEAR POWER PLANT

^ENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE:_(A I

FACILITY I D YEAR t MO tDAY YEAR I MO I DAY STATE CODE NPDES PERMIT t 3402003001 BEGINNING 03 1 01t 01 ENDING 03101 1 31 06 CA0003751 STATION EFFLUENT 001 INFLUENT EFFLUENT INFLUENT EFFLUENT 001 INFLUENT EFFLUENT 001 INFLUEN7 ANALYSIS TITANIUM ARSENIC ARSENIC CADMIUM CADMIUM LEAD LEAD ZINC WNTS tw' uJ1 uglh ug1 sWI ugvi tvh u'1 SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FRED OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 11 4

5 6

7 8

9 10 1 1 12 13 14 15 16 17 1 8 19 20 2 1 22 23 24 25 26 27 28 29 30 3 1 MONTHLY AVG 1

MONTHLY HIGH 1

MONTHLY LOWJ 11 MES EXCEEDED NO UMIT NO LIMIT 6M-MED 30 = a NO LIMIT 6M-MED 10 =

NO UMIT 6M-MED 10 0 NOLIMIT MESEXCEEDED DMAX15O = 0 DMAX20 = 0 DMAX40 = 0 MES EXCEEDED I MAX 400 = 0 I MAX 5-0 IMAX 100 =0 REMARKS

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

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 (A) 2 FACILITY ID YEAR/ MO I DAY YEAR I MO) DAY STATE CODE NPDES PERMIT:

3402003001 BEGINNING 03 I 01 I 01 ENDING 03 101 / 31 06 CA000375_

STATION INFLUENT EFFLLIENT 001 INFLUENT EFFLUENT 001 INFLUENT EFFLUENT 0o1 INFLUENT EFFLUENT 001 ANALYSIS MERCURY MERCURY SILVER SILVER CYAN DE CYANIDE PHENOLIC CMP PtHENOUC ChlP LNTS ugl ug' 1g wg ug/t uvi ugll (NONCL)

UVi INONCL)

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 2 1 22 23 24 25 26 277 28 29 30 3 1 MNTHLY AVG MONTHLY HGH ONTHLY LOW MES EXCEEDED NO LIMIT 6M-MED 0 2-0 NO UMIT 6M-MED 2 9=0 NO LIMIT 6M-MED 30=0 NO LIMIT 6M-MED 150=0 MES EXCEEDED DMAX08 =0 DMAX 13 6-O DMAX 100=0 DMAX 610= 0 MES EXCEEDED IMAX 2 = 0 IMAX 35= 0 IMAX 260=0 IMAX 1530=0 REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

_ALIFORNIA 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 ORISPO CA 93401 PAGE: (A) 3 FACLITY I D YEAR I MO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT u 3402003001 BEGINNING 03 1011 01 ENDING 03 101 O 31 06 CA000375_

STATION INFLUENT EFFLUENT001 EFFLUENT 0QtD EFFLUENTOID EFFLUENT0C1D EFFLUENT oos EFFLUENT oo ANALYSIS CHLOR PHENOL CHLOR PHENOL LrTHIUMI BORON HYDRAZINE OIL & GREASE OIL & GREASE UNITS WIg ul mgi mg/i mg/i mg/

miv SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRASB GRAB FREO OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 1 7 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW MIES EXCEEDED NO LIMIT 6M-MED 10=0 NOLIMIT NO UMIT NO LIMIT MOAVG15=0 MO AVG 15-0 ES EXCEEDED DMAX 20=0 DMAX 20=0 DMAX 20=0 MES EXCEEDED IMAX 50=0 REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CALIFORNIA REGIONAL WATER OUAUTY 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 FACIuTY LD YEARI MO /DAY YEAR I MO I DAY STATE CODE NPDES PERMIT:

3402003001 BEGINNING 03 / 01 I 01 ENDING 03

_1 01 31 06 CA000375' STATION EFFLUENT 009 EFFLUENT013 EFFLUENTO15 EFFLUENT 016 EFFLUENTO17 INFLUENT EFFLUENT 001 ANALYSIS OIL & GREASE OIL & GREASE OIL & GREASE OIL & GREASE OIL & GREASE PCsS PCBS LtNTS Wt MOyt mgvl 1fvi Ingl ugl uyt SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREC OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER

-tE

-tEXCEEDEDn 2

3 4

5 6

7 8

9 10 I11 12 1 3 14 15 1 6 17 18 19 20 21 22 23 24 25 26 27 28 29 30 3 1 MIONTHL.Y AVG MONTHLY HiGH MONTHLY LOW ESEXCEEDED MO AVG 15=0O MO AVGI15-0 MO AVGI15=0 MO AVGI15-0 MO AVG 15=0O NOULMIT NOULMIT SEXCEEDED

MAX 20=0 MA 20=0 DMAX 20=0 DMAX 20=0 DMAX2T=0 IS EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DOJiNG THE DAY

CALIFORNIA REGIONAL WATER OUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLAhT CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH CAUF 93424 SAN LUIS OBISPO CA 93401 PAGE (A) 5 FACIUTY I D YEAR / MO t DAY YEAR I MO I DAY STATE CODE NPDES PERMIT t 3402003001 BEGINNING 03 01 I 01 ENDING 03 / 01 1 31 06 CA0003751 STATION EFFLUENT COIN EFFLUENT 0IN EFFLUENT DO N EFFLUENTOOIN EFFLUENT OtIN EFFLUENTOOKN EFFLUENT CtIN EFFLUENT OOIN ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE LNlITS MOISTURE TOT lJLDL N AMMaGA (N)

NITRATE (N)

TOT PHOSPHS pH OIL & GREASE BORON SMfLTYPE mghg mgpg "g9 mv&g pHr mfgtg mg FREO 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 1 1 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 NO UMIT NO UMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT TMES EXCEEDED IMES 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 81 HIGUERA AVILA BEACH CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE' JA) 6 FACILITY I D YEAR / MO I DAY YEAR I MO / DAY STATE CODE NPDES PERMITs 3 402003001 BEGINNING 03 I 01 I 01 ENDING 03 I 01 1 31 06 CA0003751 STATION EFFLUENTOOIN EFFLUENTOO1N EFFLUENTOOIN EFFLUENTC1N EFFLUENT001N EFFLUENTO0IN EFFLUENTOOIN EFFLUENT001N ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS CADMlIUM COPPER CHROMIUM LEAD NICKEL MERCURY 2NZ^

VOLLUME SMPL TYPE mg+9 KwgMkg S

m9 9gAg ng mg5g m

FREO GRAS GRAB GRAB GRAB GRAS GRAS GRAB

_ OCTOBER I OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 8

10 11 12 13 1 4 15 16 17--

1 8 19 20 2 1 22 23 24 25 26 27 28 29 30 3 1 MONTHLY AVG MONTHLY HIGH MONTHLY LOW IESEXCEEDED 1OxSTLC=0 1OxSTLC=0 10xSTLC=0 10xSTLC--0 10xSTLC-0 1OxSTLC-0 10xSTLC=D IMES EXCEEDED 10 mghg=O 250 mghg=O 50 mgng=O 50 mgKg=O 200 mglkg=O 2 mgfg=O 2500 mgAg=O SEXCEEDED TTLC>100-0 TTLC>2500=0 TTLC>500=0 TTLC>1000=0 TTLC 2000=0 TTLC'20-0 TTLC 5000=0 REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

APPENDIX 3 DIABLO CANYON POWER PLANT Influent and Effluent Monitoring February 2003

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: IM) 1 FACILITY I D YEAR I MO /DAY YEAR I MO /DAY STATE CODE NPDES PERMIT A 3402003001 BEGINNING 03 1 02 1 01 ENDING 03 1021 28 06 CA0003751 STATION INFLUENT EFFLUENTool DELTATEMP EFFLUENT001 INFLUENT EFFLUENT0ol EFFLUENToo1P EFFLUENT 0B2 ANALYSIS TEMPERATURE TEMPERATURE TEMPERATURE FLOW pH pH pH pH UNITS DEGREES F

DEGREES F

MGD pH UNITS pH UNITS pH UNITS pH UNITS SMPL TYPE METERED METERED METERED RECORDED GRAB GRAB GRAB GRAB FREQ CONnNUOUS CONTINUOUS CONTNUOUS DAILY MONTHLY MONTHLY M)

MONTHLY MONTHLY 1

561 74 7 186 2486 2

548 734 186 2486 3

553 72.5 172 1706 4

556 746 190 1239 5

555 745 190 1239 81 81 2

81 6

556 746 190 1239 2

80 7

558 748 190 1239 8

560 750 190 1239 9

56 3 753 190 1239 10 561 751 190 1239 11 56 6 755 189 1239 12 57 3 762 18 9 1239 13 575 765 190 1239 14 572 76.2 190 1239 15 571 762 191 1239 16

-57 3

762 189 1239 17 571 761 190 1239 18 56 9 76 0 191 1239 19 557 748 191 1239 20 54 2 73 3 191 1239 21 547 738 191 1239 22 54 9 74 0 191 1239 23 557 727 170 1239 24 556 739 183 1239 25 559 746 187 1239 26 551 738 187 1239 27 54 8 73 5 187 1239 28 543 730 187 1239 29 30 31 MONTHLY AVG 50 5 67 4 170 1215 81 81 80 81 MONTHLY HIGH 57 5 76 5 191 2486 81 81 80 81 MONTHLY LOW 54 2 72 5 17 0 1239 81 81 80 80 MESEXCEEDED NO LIMIT NO LIMIT MAX 22 0 MAX 27600 NOUMIT NOLIMIT NOLIMIT NO LIMIT MES EXCEEDED

()

MES EXCEEDED REMARKS

NUMBER OF SAMPLES TAKEN DURING THE DAY EXCEPT DURING DEMUSSELING DAILY WHEN DISCHARGING CHEMICAL CLEANING WASTES FROM DISCHARGES 001D, F. I.

L AND/OR M

CALIFORNIA REGIONAL WATER 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 AV7LA BEACH CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE: (M) 2 FACILtTY I D YEAR / MO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT B 3402003001 BEGINNING 03 1 02 01 ENDING 03 / 021 28 06 CA0003751 STATION EFFLUENT 003 EFFLUENT 004 EFFLUENT 001N EFFLUENTOO11P EFFLUENT 003 EFPLUENTOCIF EFFLUENT ooI EFFLUENTOW1 ANALYSIS pH pH OIL & GREASE OIL & GREASE OIL & GREASE OIL& GREASE T CHLOR RES CHLORINE USED UNTS pH UNITS pH UNITS w

m ml mgt u7 Ibseay SMPL TYPE GRAS GRAB COMPOSITE GRAB GRAS GRAB GRAB RECORDED FREO MONTHLY MONTHLY WEEKLY WEEKLY n

WEEKLY r)

MONTHLY 2 pe CYCLE MONTHLY 1

6 30 230 2

6 30 230 3

6 36 238 4

6'<

20 245 5

81 81 3

-ND(5) 6 <

20 252 6

6 <

20 281 7

6 <

20 302 8

6 <

20 302 9

6 <

20 302 130 3

6 20 302 11 6 <

20 302 12 6 <

20 302 13 6 <

20 295 14 3

ND(S) 6' 20 288 15 6

28 288 16 6 <

20 288 17 6 <

20 288 18 6 <

20 288 19 3

ND(5) 6 26 288 20 6

311 274 21 6 <

20 259 22 6'

20 259 23 6'<

20 259 24 6'<

20 259 25 6'<

20 245 26 3

ND(S) 6r 20 230 27 6 <

20 223 28 6'

20 216 29 30 31 MONTHLY AVG 81 81 ND(S)

NO NO 3

20 269 MONTHLY IfGH 81 81 ND(S)

DISCHARGE DISCHARGE 3

36 302 MIONTHLY LOW 81 81 ND(S) 3 20 216 MES EXCEEDED NO LIMIT NO LIMIT MO AVG 15 =0 MO AVG 15 z0 MO AVG 15 =0 MOAVGIS= 0 I MAX 200 0 NO LIMIT MES EXCEEDED DMkX 20 z0 D MAX20= 0 D MAX 20 =0 D MAX 2O0 0 MES EXCEEDED REMARKS

'NUMBER OF SAMPLES TAKEN DURING THE DAY WHEN 0OIN IS DISCHARGING TO 001P.

WHEN 00iP IS DISCHARGING TO 003

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 91 HIGUERA AVILA BEACH CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE: (M) 3 FACILITY LD YEAR i MO I DAY YEAR / MO I DAY STATE CODE NPDES PERMIT v 3402003001 BEGINNING 03 1 02 01 ENDING 03 102 1 28 06 CA000375' STATION EFF 00t1N-03 EFF 0OtN%>O03 EFFLUENT 00tD EFFLUENT 00tF ANALYSIS TOTL COUFORM FECAL COLIFORM SUSPENDED SOUDS SUSPENDED SOCIDS UNITS MPNw1C00vi MPNt ODno mg/ 1st FLTR mgl1 2nd FLTR mg/i NET mngI Ist FLTR mg'1 2nd FLTR mg/i NET SMPL TYPE GRAB GRAB GRAB GRAB FRED 4 TIMESIWEEK 4 TIMESNWEEK MONTHLY MONTHLY 2

3 2

ND(5) 4 52 9

2 1

2 9

6 7

1 ND(5) 8 9

1 0 3

7 3E 1

3 7

2 4

2 1

2 ND(M

)

1 E 12 2

44 2

44 13 1 4 1 5 1 6 1 7 18a 1 9 20 21 22 23 24 25 26 27 28 29 30 31 AONTHLY AVG NO NO 5

ND(5)

MONTHLY HIGH DISCHARGE DISCHARGE 46 ND(5) iONTHLY LOW ND(S)

ND(S)

LES EXCEEDED 80% SMPLS>lK MEAN>200=

NO LIMIT NOLIMIT MO AVG 30 =0 NOULMIT NO LIMIT MOAVG30=0 IMSEXCEEDED 90 %SMPLS>400 D MAX100 =0 D MAX 100= 0 IMSEXCEEDED I MAX >10K REMARKS

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

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) 4 FACILUTY I D YEAR I MO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT:

3 402003001 BEGINNING 03 1 02 101 ENDING 03 1 02,r 280 00 CA000375' STATION EFFLUENTOO1G EFFLUENTOOIH ANALYSIS SUSPENDED SOUDS SUSPENDED SOLtDS UNITS mfqt 1st FLTR mI 2nd FLTt mt NET mq/i lst FLTR m 2nd FLTR mg/ NET SMPL TYPE GRAb GRAB FREo MONTHLY MONTHLY

-1 1-1 1-1--I 2

3 8

18 4

5 6

7 10 1

ND(5) 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 M.ONTHLY AVG ND(5) 8 MIONTHLY HIGH ND(5) 8 MONTHLY LOW ND(5) 8 ES EXCEEDED NO LIMIT NO UMIT MO AVG 30=0 NO LIMIT NO UMIT MO AVG 30=0 IMES EXCEEDED D MAX 100 = 0 D MAX 100 = 0 MES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CALIFORNIA REGIONAL WATER DUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION POBOX56 81 HIGUERA AVILA BEACH. CALIF 93424 SAN UllS OBISPO CA 93401 PAGE:(M) 5 FACaLITY I D YEAR I MO I DAY YEAR I MO / DAY STATE CODE NPDES PERMIT t 3402003001 BEGINNING 03 / 02 1 01 ENDING 03 1 02 1 28 06 CA0003751 STATION EFFLUENT OOt EFFLUENT OC I J ANALYSIS SUSPENDED SOLIDS SUSPENDED SOUDS UNTES mgI 1st FLTR mgtI 2nd FLTR mgtl NET mI 1st FLTR mgtt 2nd FLTR mgI NET SMPL TYPE GRAB GRAB FRED MONTHLY MONTHLY 2

3 LO11ND(5) 4 S

6 7

8 9

10 1 1 1 2 1 3 1 4 1 5 1 6 1 7 20 2 1 22 23 24 25 26 27 28 29 30 3 1 MON~THLY AVG NO ND(5)

MNTHLY HIGH DISCHARGE ND(5)

MNTHLY LOVI ND(S)

[IES EXCEEDED NO LIMIT NO LIMIT MO AVG 30 =0 NO LIMIT NO LIMIT MO AVG 30 0

IES EXCEEDED MAXIOC0 0 MAX 1 00 =0 MES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONtTORING REPORT PACIFIC GAS AND ELECTRIC CO CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLAN.

CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH CALIF 93424 3AN LUIS OBISPO CA 93401 PAGE. (M) 6 FACILITY I D YEAR I MO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT t 3402003001 BEGINNING 03 102 1 01 ENDING 03 1 02 1 28 06 CA00Q3751 STATION EFFLUENT0C1K EFFLUENTDO1L ANALYSIS SUSPENDED SOLIDS SUSPENDED SOUDS UNITS mg1 Ist FUTR mg/I 2nd FLTR mg/1 NET mg Ist FLTR mg/ 2nd FLTR Wm/ NET SMPL TYPE GRAB GRAB FRED MONTHLY MONTHLY 2

3 2

1 2

ND(5) 4 5

6 7

B 9

10 I11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 M.ONTHLY AVG NO ND(5)

.MONTHLY HIGHl DISCHARGE ND(5)

M4ONTHLY LOW ND(5)

IMES EXCEEDED NO LIMIT NO UMIT MO AVG 30 0 NO LIMIT NO LIMIT MO AVG 30 0 IMESEXCEEDED DMAX100 = 0 D MAX00 = 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 PLAh CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH CALIF 93424 SAN LUIS OBISPO CA 93.01 PAGE:(U) 7 FACLITY I D YEAR) MO) DAY YEAR IMO) DAY STATE CODE NPOES PERMIT s 3402003001 BEGINNING 03 / 02 1 01 ENDING 03 102 1 28 06 CAOOQ375 1

STATION EFFLUENT001M EFFLUENT001N EFFLUENT 00tP ANALYSIS SUSPENDED SOLIDS SUSPENDED SLDS SUSPENDED SOLIDS UNITS n

gl Ist FLTR mg/l 2nd FLTR m7 NET mgI mng I st FLTR mg'1 2nd FLTR mW' NET SMPL TYPE GRAB COMPOSITE GRAB FREO MONTHtY WEEKLY MONTHLY 2

3 4

5 2

<I1 ND(5) 24 6

3 1

ND(5) 7 8

9 10 I11 12 13 14 43 15 16 17 18 19 26 20 21 22 23 24 25 26 31 27 28 29 30 MON1THLY AVG ND(5) 31 ND(5)

MDNTHLY HIGH ND(5) 43 ND(5 MONTHL.Y LOW ND(5) 24 ND(5)

MEEXCEEDED NOULMIT NO LIMIT MO AVG 30 =0 MOAVG60=0 NO LIMIT NOULMIT MO AVG 30 =

MES EXCEEDED D MAX 100 = 0 D MAX 100 =0 MES 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 CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE: IM) 8 FACILITY I D YEAR / MO I DAY YEAR/MOI DAY STATE CODE NPDES PERMiT s 3402003001 BEGINNING 03 / 02 / 01 ENDING 03 1 02 1 28 06 CA0003751 STAnlON EFFLUENT 002 EFFLUENT 003 ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UIlTS mg/I Ist FLTR mgi 2nd FLTR mI NET mg/I 1s FLTR mg/l 2nd FLTR m NET SMPL TYPE GRAB GRAB FRED MONTHLY MONTHLY 2

3 4

5 2

3 2

1 2

ND(S) 2 4

2<

1 2

5S 6

7 8

9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 20 2 1 22 23 24 25 26 27 28 29 30 3 1 PIONTHLY AVG ND(5]-

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

ND(5)

IMESEXCEEDED NO LIMIT NO LIMIT MO AVG 30 = 0 NO LIMIT NO LIMIT MOAVG3D=0 IMESEXCEEDED DMAX100 = 0 DMAXl100 = 0 MES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURNG THE DAY

CALIFORNIA REGIONAL WATER OUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRiC CO CONTROL BOARD DIABLO CANYON NUCLEAR POA ER PLANT CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE: (M) 9 FACILITY I D YEAR I MO I DAY YEAR I MO / DAY STATE CODE NPDES PERMIT; 3402003001 BEGINNING 03 / 02 / 01 ENDING 03 / 02 1 28 06 CA0003751 STATION EFFLUENT003 EFFLUENT0t1N EFFLUENT 001 EFFLUENT 001 EFFLUENT 00t EFFLUENT

tCt, ANALYSIS SUSPENDED SOLIDS SETTL SOLIDS T CHROMIIUM COPPER NICKEL ZINC ULNITS mg/I 1st FTR mglI 2nd FLTR mgtl NET nm/

ug/i ug/i uWI rig91 SstPL TYPE GRAS GRAS GRAB GRAS GRAS GRAS FRED WEEKLY WHEN 00(1N

& 001P > 003 WEEXLY MONTHLY MONTHLY MONTHLY MONTHLY 2

3 4

5 ND(0 1)

ND(10)

ND(10) 6 7

8 9

10 I11 12 13 14 ND(0 1) 1 5 16 17 18 19 ND(0 1) 20 21 22 23 24 25 26 ND(0 1) 27 28 29 30 31 MONTHLY AVG NO ND(0 1)

ND(10)

NIONTHLY HIGH DISCHARGE ND(0 1)

ND(10)

NOCIC)

ND(10)

MqONTHLY LOW ND(0 1)

ND(10)

MESEXCEEDED NOLIMIT NOLIMIT MOAVG30=0 MOAVG10=0 6M-MED 10=0 6M-MED 1D=0 6M-MED30=0 6M-MED70=0 KMES EXCEEDED D MAX 100 = 0 D MAX 3 0

DMAX40 0

DMAX50 0

D MAX 100 = O D MAX 380 = 0 FES EXCEEDED I MAX lW=0 I MAX 140 0 I MAX 250 = 0 IMAX990=0 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 81 HIGUERA AVILA BEACH CALIF 93424 SAN LUIlS OBISPO CA 93401 PAGE. (Q) 1 FACLITY ID YEAR I MO I DAY YEAR / MO / DAY STATE CODE NPDES PERMIT:

3402003001 BEGINNING 03 1 02 / 01 ENDING 03 102 1 28 06 CA0033 751 STATION INFLUENT INFLUENT INFLUENT INFLUENT EFFLUENT0t1 EFFLUENTOCID EFFLUENT00iG EFFLUENT 001H ANALYSIS T CHROMLUM COPPER NICKEL AMMONIA (N)

AMMONIA (N)

OIL A GREASE OIL & GREASE OIL & GREASE UNITS ugW ugh1 ug'1 ug'1 u1vi mg/I mv/

"gi SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREO NAP/JUUOCT JAJAPIJUJOCT JAAP/JULJOCT JAPIJWOCT JA UIJOCT

.AAPIJULJOCT WAPIJULJOCT AAPIJULAOCT 2

3 4

5 ND(10)

ND(10)

ND(10) 6 7

8 9

10 11 12 9

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

ND(10)

ND(10) 9

'IONTHLYHiIGH ND(10)

ND(10)

ND(10) 9 MON'THLY LOW ND(10)

ND(10)

ND(10) 9 IMES EXCEEDED NO LIMIT NOULMIT NOULMIT NO LIMIT 6M-MED 3060 =0 MO AVGI15 0 MO AVGI15 0 MO AVG 15 0 IMES EXCEEDED D MAX 12240 =0 D MAX 20 =0 DMAX20 =0 DMAX20= 0 MES 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 PLAN7 CENTRAL COAST REGION PO BOX 56

.8t HIGUERA AVILA BEACH. CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE. (Q) 2 FACIUTY I D YEAR / MO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT o 3402003001 BEGINNING 03 t 02 1 01 ENDING 03 1 021 28 06 CA0003751 STATION EFFLUENT 0011 EFFLUENT 001.1 EFFLUENT00tK EFFLUENT00IL EFFLUENT 00tM EFFLUENT 0011P EFFLUENT 002 EFFLUENT 003 ANALYSIS OIL& GREASE IL & GREASE OIL A GREASE OIL & GREASE OIL & GREASE OIL & GREASE aL & GREASE OL 2 GREASE UNrTS mvi mgv 1

mgli mgli mi ffw mrl mg/l SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREO

.APIAJXJCT WAPIJUUOCT JAIAP/JUUDCT.AfAP/JUUT JAIAPIJULJDCT JINAPIJUIOCT JAJAPIJUJIOCT JAIAPIAXXDCT 2

3

(

3 4

5 3

6 7

8 9

1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 20 2 1 22 23 24 25 26 27 28B 29 30 3 1 MONTHLY AVG 3

3 MODNTHLY HIGH 3

3 MONTHLY LDWV 3

3 IMESEXCEEDED MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MES EXCEEDED DMAX20 = 0 DMAX20 =0 DMAX20=0 DMAX20 = 0 DMAX20 = 0 DMAX20 = 0 DMAX20 = 0 DMAX20 = 0 MES 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 CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE. (QI 3 FACLITY I D YEAR I MO I DAY YEAR I MO I DAY STATE CODE NODES PERMIT t 3 402003001 BEGINNING 03 102 I01 ENDING 03 I 02 1 28 06 CA0003751 STATION EFFLUENT 004 EFFLUENT001 EFFLUENT 001 D EFFLUENTOOIH EFFLUENT OQ L EFFLUENTr01F ANALYS5S OIL & GREASE TOX CONCEN CADMIUM CADMIWM CADMLIeM CADMIUM UNITS mgwl TU ugK uv' ugh ugfl SMJPL TYPE GRAB GRAB aTRLY COMP OTRLY COMP OTRLY COMP I WEEK COMP FRE3 JWAPIJtULDCT JIAPIJUUIOCT JAIAPIJJJOCT JIAAPIJULCT JAIAPIJUIJOCT.WAPLJUIJOCT 2

3 4

5 6

7 8

9 10 I11 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 liMES EXCEEDED MO AVG 15 = 0 NO LMIT NO UMIT NO UMIT NO LIMIT LMES EXCEEDED DMAX20 = 0 MES EXCEEDED 6M-MED 0 26=0 REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLAN' CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE: (Q) 4 FACILITY I D YEAR I MO J DAY YEAR I MO I DAY STATE CODE NPDES PERMIT:

3 402003001 BEGINNING 03 I 021 01 ENDING 031 02 1 28 06 CA0003751 STATION EFFUENT001D EFFLUENT M01H EFFLUENTOOL EFFLUENT001F EFFLUENT00tD EFFLIENT001H EFFLUENT DOL EFFLUENT OO1F ANALYSIS CHROhIUM T CHROMIW T CHROMIUM TCHRCOhItUM COPPER COPPER COPPER COPPER UNITS ugn ugvh ug11 ug ugh ugI 11 ugh SMPL TYPE QTRLY COMP OTRLY COMP OTIRLY COUP I WEEK COMP QTRLY COMP OTRLY COMP OTRLY COM5 1 WEEK COMP FREQ IlUAPtJUUOCT.WAPFJULtOCT JWAP/JUL/OCT JA4APIJUtJOCT JNAP1J=CT JAIAPIIAX)CT JAIAP/JJLUOCT WVAP!JLJUOCT 2

3 4

5 6

7 8

9 10 I11 12 1 3 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW IMESEXCEEDED NO UMIT NO LIMIT NO UMIT NO UMIT NO UMIT NO LIMIT NO LIMIT NO LIMIT IMES EXCEEDED TWES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CAUFORNIA REGIONAL WATER OUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE. IQ) 5 FACILITY I D YEAR I MO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT g 3402003001 BEGINNING 03 1 02 / 01 ENDING 03 1 02 1 28 06 CA0003751 STATION EFFLUENTOOID EFFLUENT001H EFFLUENT0011 EFFLUENTooIF EFFLUENT001D EFFLUENToo1H EFFLUENTOClL EFFLUENT 00 IF ANALYSIS LEAD LEAD LEAD LEAD MERCURY MERCURY MERCURY MERCURY Uh1TS U51 Ul ugl ug9 ugh 1

ughl ughI Ug1 SMPL TYPE CTRLY COMP CTRLY COMP aTRLY COMP I WEEK COMP OTRLY CDMP OTRLY COMP OTRLY COMP 1 WEEK COUP FRED JAAPALIOCT AAP lOCT JAEAPIJLCT APJUCT

.WAP]JUUOCT IJAPIJUUJOCT WVAP/JULOCT 2

3 4

5 6

7 8

9 10 I11 12 13 14 15 16 17 1 8 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW lMES EXCEEDED NO LIMIT NO LIMIT NO UMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO UMIT IMES EXCEEDED IMES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLAN, CENTRAL COAST REGION PO BOX 56 31 HIGUERA AVILA BEACH CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE: (Q) 6 FACILITY I D YEAR IMO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT 3402003001 BEGINNING 03 / 02 1 01 ENDING 03 / 02 t 28 0E CA0003751 STATION EFFLUENT001D EFFLUENTtt11H EFFLUENTr001L EFFLUENTO1IF EFFLUENT tX1 D EFFLUENTO1H EFFLUENT 00I EFFLUENT001 ANALYSIS NICKEL NlCKEL NICKEL NICKEL SILVER SILVER SILVER SILVER UNITS u

ug'1 ugr1 ugm ut ughi us I WI SVPL TYPE OTRLY COMP OTRLY COMP OTRLY COMIP 1 WEEK COMP CTRLY COMP OTRLY COMP OTRLY COMP 1 WEEK CCOP FREO WAP/JtXACT JAJAP/JULOCT JAIAPIFJOCT JAVAPIMJIOCT JAJAPJUtUOCT JVIAPIJUU/OCT JA/API JUOCT

.WAPIJULOCT 2

3 4

5 6

7 10 14 12 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 NO UMIT NO UMIT NO UMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT LIES EXCEEDED IES 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, CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE. (Q) 7 FACILITY I D YEAR I MO I DAY YEARI MO) DAY STATE CODE NPDES PERMIT 3 402003001 BEGINNING 03 1 02 1 01 ENDING 03 / 02/ 28 06 CA0003751 STATION EFFLUENT 0lD EFFLUENT 001H EFFLUENTlL011 EFFLUENTOO11 ANALYSIS ZINC ZINC ZINC ZINC UNrTS g

ugh uvg ugh SMPL TYPE OTRLY COM(P TRLY COUP OTRLY COMP I WEEK COMP FREO AINAP/JUIOCT JAAPILUUCT WAPI/DJOCT

_JWAPIJULIOCT 2

3 4

5 5

7 8

9 10 1 1 12 13 14 15 18 1 7 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW MES EXCEEDED NO LIMIT NO UMIT NOLIMIT NO LIMIT MES EXCEEDED IMES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE: (0) 8 FACILITY I D YEAR I MO I DAY YEAR / MO I DAY STATE CODE NPDES PERMIT P 3402003001 BEGINNING 03 t 02 I 01 ENDING 03 1 02 / 28 0D CA0003751 STATION EFFLUENTrOCD EFFLUENT001F EFFLUENT00tl EFFLUENTO01L EFFLUENTODIM ANALYSIS COPPER COPPER COPPER COPPER COPPER UNITS m0tl mgvi mOtl w

mg/i SMPL TYPE 241HR COUP 24-HR COMP 24-HR COMP 24-HR COMP 24-HR COMP FREG METAL CLNG METAL CLNG METAL CLNG METAL CLNG METAL CLNG 2

3 4

5 6

7 8

9 10 1 1 12 13 14 15 16 17-18 19 20 21 22 23 24 25 26 27 28 29 30 31 MO0NTHLY AVG MONTHLY HIfGH MONTHLY LOW IES EXCEEDED MO AVG I 0

MOAVG1 zO MOAVG 1 0 MO AVG I 0 MO AVGI =0 IMES EXCEEDED DMAXI =0 DMAXI =0 DMAX1 =0 DMAXI =0 DMAX1 =0 ES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CALIFORNIA REGIONAL WATER CUALITY 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: IQ) 9 FACILITY I D YEAR I MO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT a 3402003001 BEGINNING 03 / 02 01 ENDING 03 1 02 128 06 CA0003751 STATION EFFLUENT0011D EFFLUENT001IF EFFLUENT 0011 EFFLUENTL01L EFFLUENT001M ANALYSIS IRON IRON IRON IRON IRON LUTS mgtt mgI n1 mg mgi SMPL TYPE 24-HR COMP 24-HR COMP 24-HR CONP 24-HR COMP 24-HR COMP FREQ METAL CLNG METAL CLNG METAL CLNG METAL CLNG METAL CLNG 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 2 1 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH

.IONTHLY LOW IMES EXCEEDED MO AVG 1= 0 MO AVG I= 0 MO AVG I= 0 MOAVG = 0 MOAVG 1 =0 IMES EXCEEDED DMAXl =0 DMAXl =0 DMAXl =0 DMAXI =0 DMAX1 =0 IMES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CALIFORNIA REGIONAL WATER OUALUTY 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: (A) I FACIUTY I D YEAR I MO / DAY YEAR I MO I DAY STATE CODE NPDES PERMIT P 3402003001 BEGINNING 03 1 02 1 01 ENDING 03 1 021 28 06 CAOO03751 STATION EFFLUENT 001 INFLUENT EFFLUENT INFLUENT EFFLUENT 001 INFLUENT EFFLUENT 00t INFLUENT ANALYSIS TITANIUM ARSENIC ARSENIC CADMIUM CADMIUL LEAD LEAD ZINC UNTS ugv ugh ug1 ugv1 ug/1 ugl ug1 ug'1 SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREO OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 13 6

7 B

9 10 11 12 1 3 14 15 1 6 17 18 19 20 21 22 23 24 25 26 27 28 29 30 3 1 MONTHLY AVG 13 MONTHLY HIGH 13 MONTHLY LOW 13 S

MES XCEEDED NO LIMIT NO LIMIT 6M-MED 30 = 0 NO UMIT 6M-MED 10 0 NO LIMIT 6M-MED 10 = 0 NO LIMIT MESEXCEEDED DMAX 150 = 0 DMAX20 = 0 DMAX40 = 0 MES EXCEEDED I MAX 400 = 0 I MAX 50 -0 I MAX 100 =0 REMARKS

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

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO ZONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 81 HIGUERA AV1LA BEACH CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE:(A) 2 FACILITY I D YEAR I MO / DAY YEAR I MO I DAY STATE CODE NPDES PERMIT B 3402003001 BEGINNING 03 / 02 1 01 ENDING 03 / 02 28 06 CA0003751 STATION INFLUENT EFFLUENT 00t BLUENT EFFLUENT 001 INFLUENT EFFLUENT00t INFLUENT EFFLUENT X1 ANALYSIS MERCURY MERCURY SILVER SILVER CYANIDE CYANIDE PHENOLIC CMP PHENOUC CMP UNITS ugh ug9f ug/

uu/

uvh uVI ug9l INONCL) ugI (NONCLI SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREO OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 8

9 10 1 1 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MIONTHLY HIGH AONTHLY LOW IMES EXCEEDED NO LIMIT 6M-MED 0 2=0 NO LIMIT 6M-MED 2 9=0 NO LIMIT 6M-MED 30=0 NO LIMIT 6M-MED 150=0 IMES EXCEEDED DMAX0B =0 DMAX 13 6=0 DMAX 100=0 DMAX 610= 0 IMES EXCEEDED IMAX 2 = 0 IMAX 35= 0 IMAX 260=0 IMAX 1530=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 81 HIGUERA AVILA BEACH CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE. (A) 3 FACILITY I D YEAR I MO I DAY YEAR I MOI DAY STATE CODE NPDES PERMIT F 3 402003001 BEGINNING 03 102 i 01 ENDING 03 / 021 28 06 CAD003751 STATION INFLUENT EFFLUENT 001 EFFLUENT CO1D EFFLUENT C00D EFFLUENT0011) EFFLUENT 005 EFFLUENT D08 ANALYSIS CHLOR PHENOL CHLOR PHENOL UTHIUM BORON HYDRADINE OIL & GREASE OIL S GREASE UNITS u9't ugW mv/i mgli mgi m"VI mng SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 10 1

12 13 14 15 16 1 7 18 19 20 21 22 23 24 25 26 27 28 29 30 3 1 M ONTHLY AVG

.ONTHLY HIGH MONTHLY LOW IMES EXCEEDED NO UMIT 6M-MED 10=0 NO LIMIT NO LIMIT NO UMIT MO AVG 15=0 MO AVG 15=0 TMES EXCEEDED DMAX 20-0 DMAX 2=0 DMAX 20=0 TMES EXCEEDED IMAX 50=0 REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH CALIF 93424 SAN LOlS OBISPO CA 93401 PAGE: (A) 4 FACILITY I D YEAR / MO / DAY YEAR I MO I DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 03 / 02 I 01 ENDING 03102 / 28 06 CA0003751 STATION EFFLUENT 009 EFFLUENT0t3 EFFLUENT015 EFFLUENT016 EFFLUENT 0t T INFLUENT EFFLUENT 001 ANALYSIS OL&GREASE OL & GREASE IL & GREASE OIL & GREASE OIL & GREASE PCs'S PCB-S UNITS mmt MO 1

mg)1 mgll ugfl ugh SMPL TYPE GRAS GRAB GRAB GRAB GRAB GRAB GRAB FREOQ OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 B

9 10 I11 12 13 1 4 15 1 6 17 18 19 20 2 1 22 23 24 25 26 27 28 29 30 3 1 MIONTHLY AVG MONTHLY HIGH MONTHLY LOW MESEXCEEDED MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15-0 MOAVG15=0

, NOLIMIT NOLIMIT IMES EXCEEDED DMAX 20=0 DMAX 20=0 DMAX 20=0 DMAX 20=0 DMAX20=0 IMES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CALIFORNIA REGIONAL WATER OUAUITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH. CAUF 93424 SANLUISOBISPO CA 93401 PAGE (A) s FACILITY ID YEARIMOIDAY YEAR I MO I DAY STATE CODE NPDES PERMIT #

3 402003001 BEGINNING 03 1 02 1 01 ENDING 03 t 02 1 28 06 CA0003751 STATION EFFLUENT0C1N EFFLUENTOCIN EFFLUENT001N EFFLUENTD1N EFFLUENT00IN EFFLUENT001N EFFLUENT001N EFFLUENT 0IN ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNrTS MOISTURE TOT IWLDL N

AMMONIA IN)

NITRATE (N)

TOT PHOSPHS pH OIL & GREASE BORON SMPL TYPE mgAg mpg9 mgi9 mR&g pH ud fhg w9g FREO GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 10 I11 12 13 14 15 16 17 16 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW MES EXCEEDED NO LIMIT NO=LIMIT NO LMIT NO LIMIT NO UMIT NO LIMIT ND UMIT NOLIMIT S EXCEEDED LIES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CALIFORNIA REGIONAL WATER (7UALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BoX 56 81 HGUERA AVILA BEACH CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE:(A) 6 FACILITY I D YEAR / MO I DAY YEAR IMOI DAY STATE CODE NPDES PERMIT I 3 402003001 BEG1NNING 03 / 02 1 01 ENDING 03 1 02 1 28 06 CA0003751 STATION EFRLUENTOOIN EFFLUENTOItN EFFLUENT XI N EFFLUENT 00IN EFRUENT001N EFFLUENTo01N EFFLUENT oo1N EFFLUENT OtI N ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS CADMIIU COPPER CHROULI LEAD NICKEL MERCURY ZINC VOLUMIE SMFLTYPE IT09 mgkg mgltg mg mghg ggcg moAg mns FRED GRAB GRAB GRAB GRAB GRAB GRAB GRAB OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 8

9 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 277 28 29 30 31 MIONTHLY AVG MONTHLY HIGH MONTHLY LOW MES EXCEEDED 10xSTLC=O 10xSTLC=0 IOxSTLC=0 10xSTLC=0 1OxSTLC=O 1OxSTLC=O 1OxSTLC=O IMES EXCEEDED 10 rgAg=0 250 rghg=0 50 m/kg=0 50 wokg=0 200 nmg/g=0 2 mgrg=0 2500 mghkg=0 nES EXCEEDED TTLC>100=O TTLC>2500=0 TTLC>50=O TTLC>1000=0 TTLC>20u0=0 TTLC>20=0 TTLC>5000=0 REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

APPENDIX 4 DIABLO CANYON POWER PLANT Influent and Effluent Monitoring March 2003

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) 1 FACILITY I D YEAR I MO /DAY YEAR I MO I DAY STATE CODE NPDES PERMIT #

3 402003001 BEGINNING 03 1 03 1 01 ENDING 03 1 03 131 06 CA0003751 STATION INFLUENT EFFLUENT001 DELTATEMP EFFLUENTOD0 INFLUENT EFFLUENT001 EFFLUENT 00tPEFFLUENT 002 ANALYSIS TEMPERATURE TEMPERATURE TEMPERATURE FLOW pH pH pH pH UNITS DEGREES F

DEGREES F

MGD pH UNITS pH UNITS pH UNITS pH UNITS SMPL TYPE METERED METERED METERED RECORDED GRAB GRAB GRAB GRAB FRE0 CONTINUOUS CONTINUOUS CONTINUOUS DAILY MONTHLY MONTHLY

()

MONTHLY MONTHLY 1

536 725 189 1239 2

540 728 188 1239 3

546 733 187 1239 4

547 735 188 1239 5

544 730 186 1239 6

538 710 172 1395 7

535 680 145 1862 80 80 2

77 2

80 8

530 667 137 1992 9

536 682 146 1862 10 528 674 146 1862 11 513 660 147 1862 12 514 65 9 145 1862 13 525 651 1Z6 2070 14 537 648 11 1 2278 15 542 687 145 1862 16 54 1 68 6 14 5 1862 17 5Z8 675 147 1862 18 511 658 147 1862 19 510 657 14 7 1862 20 501 646 145 1862 21 495 642 147 1862 22 494 640 146 1862 23 499 645 146 1862 24 494 640 146 1862 25 492 640 148 1862 26 493 640 147 2278 27 493 618 125 2486 28 493 647 154 2174 29 504 650 146 1862 30 504 678 174 1862 31 507 692 185 1862 MIONTHLYAVG 518 67.2 153 1814 80 80 77 80 MONTHLYHIGH 547 735 189 2486 80 80 77 80 MONTHLYLOW 492 618 11 1 1239 80 80 77 80 ES EXCEEDED NO LIMIT NO UMIT MAX 22 0 MAX 2760 =0 NOLIMIT NO LIMIT NO UMIT NO LIMIT MES EXCEEDED

( )

MES EXCEEDED REMARKS

NUMBER OF SAMPLES TAKEN DURING THE DAY EXCEPT DURING DEMUSSEUNG DAILY WHEN DISCHARGING CHEMICAL CLEANING WASTES FROM DISCHARGES 001 D, F. I, L AND/OR M

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. CAUF 93424 SAN LUIS OBISPO CA 93401 PAGE:(M) 2 FACILITY I D YEAR I MO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT #

3 402003001 BEGINNING 03 1 03 I01 ENDING 03 1 03 I 31 06 CA0003751 STATION EFFLUENT 003 EFFLUENT 004 EFFLUENT0OIN EPFLUENTOB1P EFFLUENT 003 EFFLUENTOOIF EFFLUENT00t EFFLUENT001 ANALYSIS pH pH OIL & GREASE OIL A GREASE OIL & GREASE OIL & GREASE T CHLOR RES CHLORINE USED UNITS pH UNITS pH UNITS m5A mgm mgi m9A rxul lbs/day SMPL TYPE GRAB GRAB COMPOSITE GRAB GRAB GRAB GRAB RECORDED FREa MONTHLY MONTHLY WEEKLY WEEKLY

(*

WEEKLY

()

MONTHLY 2 per CYCLE MONTHLY 1

6 <

20 216 2

6 <

20 216 3

6 <

20 209 4

3 6 <

20 202 5

.2 3

6 21 194 6

6 37 228 7

80 80 3

ND(5) 7 40 346 8

12 46 346 9

12 40 346 10 12 40 346 1 1 12 40 346 12 1 2 40 346 13 3

ND(5) 12 25 338 14 12 61 374 15 1 2 25 302 1 6 1 2 25 302 1 7 12 28 288 18 3

12 30 274 19 3 <

5 12 28 274 20 12 30 274 21 12 33 274 22 12 28 274 23 12 30 274 24 1 2 37 274 25 1 2 30 274 26 12 67 307 27 3

7 10 37 278 28 12 56 259 29 12 30 259 30 12 25 259 31 12 21 259 MONTHLYAVG 80 80 5

NO NO 3

31 282 MONTHLY HIGH 80 80 17 DISCHARGE DISCHARGE 3

67 374 MONTHLYLOW 80 80 ND(5) 3 20 194 MESEXCEEDED NOUMIT NOLIMIT MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 IMAX200=0 NOLIMIT MESEXCEEDED D MAX 20 = 0 D MAX 20 = 0 DMAX20=0 D MAX 20 = 0 MES EXCEEDED REMARKS

'NUMBER OF SAMPLES TAKEN DURING THE DAY WHEN 001N IS DISCHARGING TO O01P WHEN DOiP IS DISCHARGING TO 003

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

3402003001 BEGINNING 03 1 03 / 01 ENDING 03 /03 / 31 06 CA0003751 STATION EFF 001N-003 EFF0IO1N=003 EFFLUENTOOD EFFLUENT LC1F ANALYSIS TOTL COLIFORM FECAL COLtFORM SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS MPtWtt00i MPN100nm mg I St FLTR mg1I 2nd FLTR mg/I NET mg/l ist FLTP mg 2nd FLTR mg/i NET SMPLTYPE GRAB GRAB GRAB GRAB FRED 4 TIMESWEEK 4 TIMESIvEEK MONTHLY MONTHLY 1

4 40 2 <

1 4

40 2

3 4

2 3

2 5

1 2

ND(S) 5 1ND(S) 6 2

8 2

8 7

8 9

10 1 1 12 11 ND(S) 13 14 15 16 17 18 19 20 21 22 23 24 2

25 2

25 25 26 27 28 4

ND(5) 29 3D 31 MONTHLY AVG NO NO 11ND(S)

MONTHLY HIGH DISCHARGE DISCHARGE 43 ND(5)

MONTHLY LOW ND(S)

ND(5)

TIES EXCEEDED 80% SMPLS>1K MEAN>200 =

NO LIMIT NO LIMIT MO AVG 30 = 0 NO LIMIT NO LIMIT MO AVG 30 = 0 IMES EXCEEDED 90 % SMPLS>400 D MAX 100 = 0 D MAX t00 = 0 TIES EXCEEDED I MAX >10K REMARKS

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

CALIFORNIA REGIONAL WATER DUALITY 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 I D YEAR I MO I DAY YEARI MO / DAY STATE CODE NPDES PERMIT #

3 402003001 BEGINNING 03 / 03 / 01 ENDING 03 / 031 31 06 CA0003751 STATION EFFLUENT001G EFFLUENTOOIH ANALYSIS SUSPENDED SOLIDS SUSPENDED SOUDS UNITS WnllstFLTR nut 2nd FLTR mg1 NET mgll 1stFLTR mglI 2nd FLTR mg/1 NET SMPLTYPE GRAB GRAB FRED MONTHIY MONTHLY 2

3 4

1D(51 ND(5) 5 6

7

<O1 ND(5) 8 9

10 1 1 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MO~NTHLY AVG ND(5)

ND(5)

MIONTHLY HIGH ND(5)

ND(5)

M.ONTHLY LOW ND(5)

ND(5)

MES EXCEEDED NO LIMIT NO LIMIT MO AVG 30=0 NO LIMIT NO UMIT MO AVG 30=0 ES EXCEEDED D MAX 100= 0 DMAX100= 0 LES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CALIFORNIA REGIONAL WATER QUAUTY DISCHARGE SELF MONITORING REPORT PACIFiC GAS AND ELECTRIC CO CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION POBOX56 81 HIGUERA AVILA BEACH. CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE: (M) 5 FACILITY I D YEAR ! MO ! DAY YEAR / MO ! DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 03 / 03 01 ENDING 03 1 03 / 31 06 CA0003751 STATION EFFLUENT 0011 EFFLUENT 00 J ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mgt lstFLTR mgl 2nd FLTR mgt NET mgl1 stFLTR mgt 2nd FLTR mg/ NET SMPL TYPE GRAB GRAB FREQ MONTHLY MONTHLY 2

3 4

5 6

1 ND(5) 7 B

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(S)

MONTHLY HIGH DISCHARGE ND(5)

MONTHLY LOW ND(S)

MES EXCEEDED NO LIMIT NO LIMIT MO AVG 30 = 0 NO LIMIT NO LIMIT MO AVG 30 0 IMESEXCEEDED MAX 100 = 0 MAX 100 = 0 IMES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORJNG 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) 6 FACILITY I D YEAR / MO / DAY YEAR I MO I DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 03 1 03 101 ENDING 03 / 03 /31 06 CA0003751 STATION EFFLUENT 001 K EFFLUENT00tL ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mgtI 1slFLTR mg/I 2nd FLTR mg/i NET mg/I 1stFLTR mg/ 2nd FLTR mg/ NET SMPL TYPE GRAB GRAB FREO MONTHLY MONTHLY 2

3 4

5 6

7 8

9 10 1 1 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 1

ND(5) 27 28 IND(5) 29 30 31 MIONTHLY AVG NO ND(5)

MONTHLY HIGH DISCHARGE ND(5)

IONTHLY LOW ND(5)

EMES EXCEEDED NO LIMIT NO LIMIT MO AVG 30 = 0 NO LIMIT NOUMIT MOIAVG30 0

MES EXCEEDED D MAX 100 = 0 DMAX100 =O MES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CAUFORNIA REGIONAL WATER QUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE:QA) 7 FACILITY I D YEAR / MO I DAY YEAR J MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 03 1 03 t 0t ENDING 03 / 03 31 06 CA0003751 STATION EFFLUENT00IM EFFLUENT 001N EFFLUENT00tP ANALYSIS SUSPENDED SOLIDS SUSPENDED SILDS SUSPENDED SOUDS UNITS mt IstfFLTR mgs 2ndFLTR mg/ NET Wt m/ I1stFLTR ms 2ndFLTR mgtt NET SMPL TYPE GRAS COMPOSITE GRAB FREQ MONTHLY WEEKLY MONTHLY 2

3 4

5 6

7 25 3

1 ND(5) 8 9

1 0 1 1 1 2 1 3 47 14 1 5 1 6 17 18 3

1 ND(5) 1 9 41 20 21 22 23 24 25 26 27 1 8 28 29 30 31 MONTHLY AVG ND(5) 33 ND(5)

MONTHLY HIGH ND(5) 47 ND(5)

MONTHLY LOW ND(5) 18 ND(5)

MES EXCEEDED NO UMIT NO LIMIT MO AVG 30 0 MO AVG 60 = 0 NO LIMIT NO UMIT MO AVG 30 0 MESEXCEEDED DMAX 100 = 0 DMAX100 = 0 MES 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, CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE:(M) 8 FACILITY I D YEAR/MO I DAY YEAR/ MOI DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 03 I 03 01 ENDING 03 1 03 1 31 06 CA0003751 STAllON EFFLUENT 002 EFFLUENT 003 ANALYSIS SUSPENDEDSOUDS SUSPENDED SOLIDS UNITS gW Ist FLTR mgl1 2nd FLTR mgI NET mng/

IstFLTR mgl1 2nd FLTR mga NET SMPL TYPE GRAB GRAB FRED MONTHLY MONTHLY 2

3 4

5 6

7 2

2 2<

1 2

ND(5) 2 3

2'<

1 2

ND()

8 9

12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 M~ONTHLY AVG ND(5)

ND(S)

MONTHLY HIGH ND(5)

ND(S)

MONTHLY LOW ND(5)

ND(5)

TMES EXCEEDED NO LIMIT NO LIMIT MOAVG 30 =

NO UMIT NO UMIT MO AVG 30 = 0 MESEXCEEDED DMAX100 =0 DMAXlEO = 0 MES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURNG 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) 9 FACIULTY I D YEAR / MO I DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3 402003001 BEGINNING 03 / 03 1 01 ENDING 03 / 03 1 31 06 CA0003751 STATION EFFLUENT 003 EFFLUENT001N EFFLUENT001 EFFLUENT001 EFFLUENT001 EFFLUENT 00t ANALYSIS SUSPENDED SOLIDS SETTL SOUDS T CHROMeUM COPPER NICKEL DNC UNITS mgtl IsFLTR mgli 2ndFLTR m1 NET ugh Wv ugl ugi ugh SMPL TYPE GRAB GRAB GRAB GRAB GRA!

GRAB FREQ WEEKLYWHEN 0O1N &01P = 03 WEEKLY MONTHLY MONTHLY MONTHLY MONTHLY 2

3 4

5 6

7 ND(0 1)

ND(10)

ND(10) 8 9

10 1 1 12 13 ND(O l) 14 15 16 17 18 19 ND(N 1) 20 21 22 23 24 25 26 27 ND(O 1) 28 29 30 31 MONTHLY AVG NO ND(0 1)

ND(10)

ND(1 0)

MONTHLY HIGH DISCHARGE ND(0 1)

ND(10]

ND(10)

MONTHLY LOW ND(0 1)

ND(I0]

ND(10)

ND(lO)

ND(10)

MES EXCEEDED NO UIMIT NO LIMIT MO AVG 30 = 0 MO AVG 1 0 0 6M-MED 10 =0 6M-MED 10=0 6M-MED 30 =0 6M-MED 70=0O IMESEXCEEDED DMAX100 = 0 DMAX30 = 0 DMAX40 = 0 DMAX50 = 0 DMAX100 = 0 DMAX380 = 0 MES EXCEEDED I MAX 100 = 0 I MAX 14 = 0 I MAX 260 = 0 I MAX 990 = 0 REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CALIFORNIA REGSONAL WATER QUAUTY 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) 1 FACIL[TY I D YEAR / MO / DAY YEAR /MO / DAY STATE CODE NPDES PERMIT #

3 402003001 BEGINNING 03 / 03 / 01 ENDING 03 1 03 1 31 06 CA0003751 STATION INFLUENT INFLUENT INFLUENT INFLUENT EFFLUENT 00t EFFLUENT001D EFFLUENTDOIG EFFLUENT 001H ANALYSIS T CHROCLIUM COPPER MCKEL AMMONIA IN)

AMbIONLA (N)

OIL & GREASE OIL & GREASE OIL & GREASE UNITS ugr ught ug/h ug ugh mgI m

gi SMPL TYPE GRAS GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREO JIAAPJULOCT JAAP/JUUOCT JNAPJJUFIOCT JA/AP/RJ/OCT JAIAP/JULOCT WAP/JUJCT AAIJCT JAJAPJIU!OOCT 2

3 4

5 6

7 ND(10)

ND(10)

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 MONTHLY AVG ND(10)

ND(l0)

ND(l10)

MONTHLY HIGH ND(10)

ND(10)

MONTHLYLOW ND(10)

ND(10)

ND(l0)

MES EXCEEDED NO LIMIT NO UMIT NO LIMIT NO UMIT 6M-MED 3060 = 0 MO AVG 15 0 MO AVG 15 0 MO AVG 15 0 lES EXCEEDED DMAX12240 = 0 DMAX20 = 0 DMAX20 = 0 DMAX20 = 0 MESEXCEEDED 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 REGON PO BOX 56 81 H(GUERA AVILA BEACH, CAUF 93424 SAN LUIS OBISPO CA 93401 PAGE. (0) 2 FACILITY I D YEAR /MO / DAY YEAR / MO I DAY STATE CODE NPDES PERMIT z 3402003001 BEGINNING 03 / 03 1 01 ENDING 03 / 03 131 06 CA0003751 STATION EFFLUENT0011 EFFLUENTO1WJ EFFLUENT001K EFFLUENTOWlL EFFLUENTrO1M EFFLUENTOWlP EFFLUENT002 EFFLUENT 0W3 ANALYSIS OIL S GREASE OIL & GREASE OIL & GREASE OIL & GREASE OIL & GREASE OIL & GREASE OIL & GREASE OIL & GREASE UNITS mg/

mg/I mgti mw/

mg/l mg/

mg/

SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ JAIAPIJUIJOCT JAfAP/JtIJOCT JAtAPlJWTOCT JAAPIJUJOCT

.WAPJMAJOCT JAAP/JUUJOCT JAIAP/JUUOCT WLVAPIJULAOCT 2

3 4

5 6

7 8

9 1 0 1 1 1 2 1 3 14 1 5 1 6 17 18 3

1 9 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG 3

.IONTHLY HIGH 3

MONTHLY LOW 3

IMESEXCEEDED MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 IMES EXCEEDED DMAX20=0 DMAX20=0 DMAX20=0 DMAX20 = 0 DMAX20=0 DMAX20=0 D MAX 2=0 DMAX20 = 0 MES 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) 3 FACILITY I D YEARIMO IDAY YEAR I MO ) DAY STATE CODE NPDES PERMIT #

3 402003001 BEGINNING 03 1 031 01 ENDING 03 / 031 31 06 CA0003751 STATION EFFLUENT 004 EFFLUENTOWI EFFLUENTO00D EFFLUENTOW1H EFFLUENT 001L EFFLUENT OO1F ANALYSIS OIL & GREASE TOX CONCEN CADMIUM CADMIUM CADMIUM CADMIUM UNITS mgf1 TU ugl ugh ugh ugm SMPL TYPE GRAB GRAB DTRLY COMP OTRLY COMP QTRLY COMP 1 WEEK COMP FRED JWAPIJULIOCT JAIAPIJUL/DCT IAIAPIAAJOCT J14APIJUUIOCT DJAAPIJULIOCT JAIAPIJUIOCT 2

3 4

5 B

7 8

9 10

.1 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HGH MONTHLY LOW

[IMESEXCEEDED MO AVG 15 =0 NO UMIT NOLIMIT NOLIMIT NO LIMIT TMESEXCEEDED DMAX20 = 0 IMES EXCEEDED 6M-MED 0 26-0 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: (0) 4 FACJLITY I D YEAR I MO / DAY YEAR I MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 03 1 03 1 01 ENDING 03 / 03 131 06 CA0003751 STATION EFFLUENTOOID EFFLUENT)01H EFFLUENT0t1L EFFLUENTOO1F EFFLUENTt1D EFFLUENTO01H EFFLUENTO1IL EFFLUENT)0IF ANALYSIS CHROMIUIL T CHROMIUM T CHROMIUM T CHROMIUM COPPER COPPER COPPER COPPER UNITS ugm ugvh ugt1 uVh ugf1 ugt1 uVl ug1h SMPL TYPE OTRLY COMP OTRLY COMP QTRLY COMP 1 WEEK COMP OTRLY COMP qTRLY COMP OTRLY COMP I WEEK COMP FREa

.LJAP/JUIJOT NAPIJUJOCT IJNAPIJULIOCT lAIAPIJULJOCT JA/APIJUOCT J14AP/JUlJOCT JAtAPlJULOCT JAIAPIJUUOCT 2

3 4

5 6

7 10 1 1 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 LIMIT NO UMIT NO UMIT NO LIMIT NO UMIT NO LIMIT NO UMIT NO LIMIT LIES EXCEEDED T^ES 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 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE: (Q) 5 FACILITY I D YEAR / MO I DAY YEAR I MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 03 103 101 ENDING 03 1 03 1 31 06 CA0003751 STATION EFFLUENT001D EFFLUENTOOIH EFFLUENTOOL EFFLUENTOOIF EFFLUENT001D EFFLUENT001H EFFLUENT 001L EFFLUENT001F ANALYSIS LEAD LEAD LEAD LEAD MERCURY MERCURY MERCURY MERCURY UNITS ugh ugh ush ugl ugh ug1 uglh ug/i SMPL TYPE OTRLY COMP QTRLY COMP QTRLY COMP I WEEK COMP OTRLY COMP OTRLY COMP OTRLY COMP I WEEK COMP FREO JAIAP/JUL/OCT JAPIJUIJOCT JAIAPIULJOCT IA/AP/JUL/OCT JAIAP1JULIOCT JAtAP/JULtOCT JAfAPIJULOCT JA4AP/JUWOCT 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

IONTHI.Y AVG MONTHLY HIGH MONTHLY LOW IMES EXCEEDED NO LIMIT NO LIMIT NO UMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT MES EXCEEDED IMES EXCEEDED 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 31 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE: (Q) 6 FACILITY I D YEAR / MO I DAY YEAR / MO I DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 03 103 101 ENDING 03 / 03 1 31 06 CA0003751 STATION EFFLUENTOOID EFFLUENT 001H EFFLUENT W1L EFFmUENTOO1F EFFLUENTOOD EFFLUENTOIH EFFLUENT0011 EFFLUENT OOIF ANALYSIS NICKEL NICKEL NICKEL NICKEL SILVER SILVER SILVER SILVER UNITS ugt u911 ugl uglh ugh ughughI ugh SMPL TYPE OTRLY COMP QTRLY COMP QTRLY COMP 1 WEEK COMP OTRLY COMP QTRLY CoMP OTRLY COMP 1 WEEK COMP FREQ JAPIJULIOCT JAIAP/JIJOCT JNAPJJUIJOCT JAPIJOCT JNAPIJUIOCT JNAPJJIJOCT WAPIJUIJOCT AIAAPIJUUOCT 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

______*1_ __

MONTHLY AVG MONTHLY HIGH MONTHLY LOW MES EXCEEDED NO LIMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO LIMIT NO LIMIT IMES EXCEEDED ES 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, CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE: (Q) 7 FACILITY I D YEAR I MO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 03 1 03 01 ENDING 03 / 03 31 06 CA0003751 STATION EFFLUENTO0ID EFRUENT001H EFFLUENT01L EFFLUENT001F ANALYSIS ZINC ZINC ZINC ZINC UNITS ugh ug/

uji ughi SMPL TYPE OTRLY CMP CTRLY COMP CTRLY COMP 1 WEEK COMP FREQ JIJAPJAJUOCT

.INAP/JULJOCT JAIAPIJUAJOCT JAIAPIJUUOCT 2

3 4

5 6

7 10 1 1 12 13 14 15 16 17 16 19 20 21 22 23 24 25 26 27 28 29 30 31 tJONTHLY AVG MONTHLY HIGH MONTHLY LOW MES EXCEEDED NO LIMIT NO LIMIT NO LIMIT NO LIMIT MES EXCEEDED KMES 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, CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE. (0) 8 FACILITY I D YEAR I MO I DAY YEAR I MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 03 / 03 / 01 ENDING 03 / 03 1 31 06 CA0003751 STATION EFFLUENT 001D EFFLUENT 0OIF EFFLUENT 0011 EFFLUENT 001L EFFLUENT 001M ANALYSIS COPPER COPPER COPPER COPPER COPPER UNITS mgvi w

mgvI mg/I mG/I SMPLTYPE 24-HR COMP 24-HR COMP 24-HR COMP 24-HR COMP 24-HR COMP FRED METAL CLNG METAL CLNG METAL CLNG METAL CLNG METAL CLNG 2

3 4

5 6

7 8

9 10 1 1 12 13 14 15 16 17 is 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HGH MONTHLY LOW IESEXCEEDED MOAVG 1= 0 MOAVG 1 0 MOAVG 1= 0 MO AVG 1 =0 MOAVG =0 IES EXCEEDED DMAXl =0 DMAX1 =0 DMAX1 =0 DMAX1 =0 DMAXIt =0 IMES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURNG 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) 9 FACIUTY I D YEAR ) MO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 03 1 03 1 01 ENDING 03 1 03 131 06 CAD003751 STATION EFFLUENT001D EFFLUENT 001 F EFFLUENT0011 EFFWUENT0011 EFFLUENT OO1M ANALYSIS IRON IRON IRON IRON IRON UNITS mg/1 Mg mg/i m/

mg/I SMPL TYPE 24-HR COMP 24-HR COMP 24-HR COMP 24-H COMP 24-HR COMP FREQ METAL CLNG METAL CLNG METAL CLNG METAL CLNG METAL CLNG 2

3 4

5 6

7 8

9 10 1 2 1 3 1 4 1 5 1 6 117 1 8 1 9 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW IMES EXCEEDED MO AVG 1= 0 MO AVG = 0 MO AVG =0 MO AVG = 0 MOAVG I =0 IMES EXCEEDED DMAXl =0 DMAXIl =0 DMAX1 =0 DMAXI1 =0 DMAX1l =0 IMES 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 81 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE: (A) 1 FACILITY I D YEAR) MO /DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 03 1 03 / 01 ENDING 03 1 03 31 06 CA0003751 STATION EFFLUENT001 INFLUENT EFFLUENT INFLUENT EFFLUENT001 INFLUENT EFFLUENT001 INFLUENT ANALYSIS TITANI)UM ARSENIC ARSENIC CADMIUM CADMIUM LEAD LEAD ZINC UNITS uglh uCl ug1 ugh ugf1 ugh ugh UVI 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 18 a

9 10 1 1 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG 18 MONTHLY HIGH 183 MONTHLY LOW 18 MES EXCEEDED NOUMIT NOLIMIT 6M-MED30=0 NOLIMIT 6M-MEDI0 0 NOLIMIT 6M-MED 100 NOUMIT MES EXCEEDED D MAX 150 = 0 D MAX 20 = 0 DMAX40 = 0 MES EXCEEDED I MAX 400 = 0 I MAX 50 - 0 I MAX 100 =0 REMARKS

' NUMBER OF SAMPLES TAKEN DURING THE DAY

- INFLUENT ANALYSIS PERFORMED FOR COMPARISON TO EFFLUENTS

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: (A) 2 FACIUITY I D YEAR I MO / DAY YEAR I MO I DAY STATE CODE NPOES PERMIT #

3402003001 BEGINNING 03 / 03 / 01 ENDING 03 103 / 31 06 CA0003751 STATION INFLUENT EFFLUENT001 INFLUENT EFFLUENT001 INFLUENT EFFLUENT 001 INFLUENT EFFLUENT001 ANALYSIS MERCURY MERCURY SILVER SILVER CYANIDE CYANIDE PHENOLIC CMP PHENOLIC CMP UNITS ugt ugi ugv ugh ugi ugh ugl (NONCL) ughl (NONCL)

SttPL TYPE 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 1 7 18 19 20 2 1 22 23 24 25 26 27 28 29 30 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMESEXCEEDED NOLIMIT 6M-MED 0 2=O NOLIMIT 6M-MED 2 9=0 NO LIMIT 6M-MED30=O NO UMIT 6M-MED 1500=

IESEXCEEDED DMAX08 =0 DMAX136-0 DMAX100=0 DMAX610D=0 IMESEXCEEDED IMAX 2 = 0 IMAX 35= 0 IMAX 260=0 IMAX 1530=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 CA 93401 PAGE' (A) 3 FACIULTY I D YEAR I MO I DAY YEAR/ MO / DAY STATE CODE NPDES PERMIT #

3 402003001 BEGINNING 03 1 03 1 01 ENDING 03 1 03 1 31 06 CA0003751 STAflON INFLUENT EFFLUENT t01 EFFLUENT 001D EFFLUENT 001D EFFLUENT 001D EFFLUENT 005 EFFLUENT 008 ANALYSIS CHLOR PHENOL CHLOR PHENOL LITHIUM BORON HYDRADNE OIL & GREASE OIL & GREASE UNITS ug/t ugh mg/I mgi mg/i mg/i mg/i SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREO OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 8

9 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 iMESEXCEEDED NOLIMIT 6M-MEDl0=0 NOLIMIT NOLIMIT NOLIMIT MOAVGl5=0 MOAVG15=0 MES EXCEEDED DMAX 20=0 DMAX 20=0 DMAX 20=0 MES EXCEEDED IMAX 50=0 REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CALIFORNIA REGCONAL 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. (A) 4 FACILITY I D YEAR / MO / DAY YEAR I MO I DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 03 / 03 / 01 ENDING 03 I 03 131 06 CA0003751 STATION EFFLUENT 009 EFFLUENT013 EFFLUENTOIS EFFLUENT016 EFFLUENT 01I INFLUENT EFFLUENTOOt ANALYSIS OIL & GREASE OIL & GREASE OIL & GREASE OIL & GREASE OIL & GREASE PFB S RCB S

UNITS MO mg mg/I mg/i mg/I ug!1 ug/

SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 B

9 1D 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 MESEXCEEDED MOAVG15=D MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 NOLIMIT NOLIMIT RMES EXCEEDED DMAX 20=0 DMAX 20=0 DMAX 20=0 DMAX 20=0 DMAX20=0 MES 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. (A) 5 FACILITY I D YEAR I MO /DAY YEAR I MO I DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 03 1 03 01 ENDING 03 1 03 1 31 06 CA0003751 STATION EFFLUENT001N EFFLUENTOBIN EFFLUENT 001N EFFLUENTQ00IN EFFLUENTOOIN EFFLUENT001N EFFLUENTO01N EFFLUENT 001N ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS MOISTURE TOT KJLDL N

AMMONIA (N)

NITRATE (N)

TOT PHOSPHS pH OIL & GREASE BORON SMPL TYPE mgoomoog mgnog pH umm mfg mgAg FRED GRAS GRAB GRAB GRAB GRAB GRAB GRAB GRAB OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 8

9 10 I11 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 LIMIT NO LIMIT NO LIMIT NO LIMIT NO UMIT NO LIMIT NO LIMIT NO LIMIT IMES EXCEEDED IMES EXCEEDED REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

CALIFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 91 HIGUERA AVILA BEACH, CALIF 93424 SAN LUIS OBISPO CA 93401 PAGE: (A) 6 FACILITY I D YEAR / MO / DAY YEAR/MO I DAY STATE CODE NPDES PERMIT K 3402003001 BEGINNING 03 / 03 01 ENDING 03 1 03 31 06 CA0003751 STATION EFFLUENT 0O0N EFFLUENTO0IN EFFLUENT 001N EFFLUENT0OIN EFFLUENT o01 N EFFLUENT 0OIN EFFLUENT OI N EFFLUENT D01N ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS CADMIUM COPPER CHROMIUl LEAD NICKEL MERCURY ZINC VOLUME SMPL TYPE nig/

mhg9 mohg mg~h mghg mgAg mgAg bns FREa GRAB GRAB GRAB GRAB GRAB GRAB GRAB OCT0OBER I 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 MIONTHLY AVG MONTHLY HIGH MONTHLY LOW lIMES EXCEEDED 10xSTLC=O 10xSTLC=O 1OxSTLC=0 1OxSTLC=O 1OxSTLC=0 1OxSTLC=0 1OxSTLC=O AES EXCEEDED 10 mgAg=O 250 mglkg=O 50 mghkg=O 50 fgfg=O 200 mg/kg=O 2 mgAg=O 2500 mgAg=O MES EXCEEDED TTLC>100=0 TTLC>2500=0 TTLC>500-0 TTLC>lW0=0 TTLC>2000=0 TTLC>20=0 TTLC>5000=0 REMARKS NUMBER OF SAMPLES TAKEN DURING THE DAY

APPENDIX 5 DIABLO CANYON POWER PLANT Acute Bioassay January 8 - 12, 2003

-AQUATIC B_0ASSAY &

CONSULTING LABORATORIES. INC.

TOXICITY TESTING

OCEANOGRAPHIC RESEARCH January 24, 2003 Ms. Raquel Harvey FGL Environmental P.O. Box 272 Santa Paula, CA 93061

Dear Ms. Harvey:

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:

SAMPLE I.D.:

PROJECT No:

DATE RECEIVED:

ABC LAB. NO.:

Diablo Canyon Power Plant Discharge 001 SP300147 08 Jan-03 FGLO1 03.035 ACUTE ABALONE SURVIVAL BIOASSAY LC50 TUa 100% Survival in 100% Sample 0.00 Yours very truly, Thomas (Tim) Mikel Laboratory Director 29 NORTH OLIVE STREET, VENTURA, CA 93001 * (805) 643-5621

/

-96 Hr Survival Start Date:

01108/2003 Test ID. FGL0103035 Sample ID-CAOOOOOO End Date.

01/1212003 Lab ID:

CAABC Sample Type.

EFF3-Power Plant Sample Date: 01/08/2003 Protocol: KOP 76-Kopperdahl Test Species:

HR-Halhots rufescens comments:

Discharge 001 SP300147 Conc-%

1 2

N Control 1.0000 1.0000 100 1.0000 1.0000 Transform: Arcsin Square Root Isotonic Conc-%

Mean N-Mean Mean Min Max CV%

N Mean N-Mean N Control 1.0000 1.0000 1.4120 1.4120 1.4120 0.000 2

1.0000 1.0000 100 1.0000 1.0000 1.4120 1.4120 1.4120 0 000 2

1.0W00 1.0000 Auxiliary Tests Statistic Critical Skew Kurt Normality of the data set cannot be confirmed Equality of variance cannot be confirmed Linear Interpolation (200 Resamples)

Point SD 95% CL(Exp)

Skew

,c0b IC10 IC15 IC20 IC25 IC40 IC50

>100

>100 1.0 0.9*

0.8.

0.7 06.

0 40 0.3*

0.2 0.1*

0.0 0

50 100 150 Dose %

Page 1 ToxCalc v5.0.23 Reviewed byir

-96 Hr Survival Start Date-01/0812003 Test ID FGL0103035 Sample ID:

CAOOOOOOO End Date.

01/1212003 Lab ID CAABC Sample Type:

EFF3-Power Plant Sample Date. 01/08/2003 Protocol: KOP 76-Kopperdahl Test Species:

HR-Haliotis rufescens

omments

Discharge 001 SP300147 Dose-Response Plot 1 ;

09 08 07 2 06 U) 05, X: 04:

Ito4 03:

0.2 01:

Ut E

0 a

Page 2 ToxCalc v5.0.23 Reviewed by~flzŽ-

-'-96 Hr Survival Start Date 01108/2003 Test ID: FGLO103035 Sample ID.

CAQOQOOQO End Date:

01112/2003 Lab ID.

CkABC Sample Type EFF3-Power Plant Sample Date: 0110812003 Protocol: KOP 76-Kopperdahl Test Species:

HR-Haliotis rufescens omments:

Discharge 001 SP300147 Auxiliary Data Summary Conc-%

Parameter Mean Min Max SD CV%

N N Control Temp C 15.48 15.40 15.60 0.08 1.81 10 100 15.40 15.10 15.80 0.18 2.73 10 N Control pH 7.80 7.70 8.00 0.12 4.36 10 100 7.75 7.70 8.00 0.11 4.24 10 N Control DO mgIL 7.57 7.30 7.80 0.19 5.83 10 100 7.73 7.60 7.90 0.11 4.21 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 N Control 0.00 0.00 0.00 0.00 0

100 0.00 0.00 0.00 0.00 0

N Control 0.00 0.00 0.00 0.00 0

100 0.00 0.00 0.00 0.00 0

Page 3 ToxCalc v5.0.23 Reviewed by&t

APPENDIX 6 DIABLO CANYON POWER PLANT Chronic Bioassay January 9 -11, 2003

)

A AAQUATIC BI.OASSAY &

CONSULTING LABORATORIES, INC TOXICITY TESTING

OCEANOGRAPHIC RESEARCH January 24, 2003 Ms. Raquel Harvey FGL Envirom-nental P.O. Box 272 Santa Paula, CA 93060

Dear Ms. Harvey:

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 Coast Marine and Estuarine Organisms, EPA-R-95/136. Results were as follows:

CLIENT:

SAMPLE I.D.:

DATE RECEIVED:

ABC LAB. NO.:

Diablo Canyon Power Plant Discharge 001 SP300147 08 Jan - 03 FGLO103.036 CHRONIC ABALONE LARVAL DEVELOPMENT BIOASSAY NOEC =

TUc

=

IC25

=

IC50

=

100.00 %

1.00

>100.00 %

Yours very truly, Thomas (Tin) Mikel Laboratory Director 29 NORTH OLIVE STREET, VENTURA, CA 93001 * (805) 643-5624

Abaione Larval Development Test-Proportion Noi...al Start Date.

01109/2003 Test ID: FGL0103036 Sample ID.

CAOOOOOO0 End Date.

01/1112003 Lab ID CAABC Sample Type.

EFF1-POTW Sample Date: 01/08/2003 Protocol: MBP 90-Anderson et al.

Test Species:

HR-Haliotis rufescens Comments:

Discharge 001 SP300147 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 Steel's Many-One Rank Test 100

>100 1

Linear Interpolation (200 Resamples)

Point SD 95% CL(Exp)

Skew IC05

>100 IC10 IC15 IC20 IC25 IC40 IC50

>100

>1 00

>100 nIV1I 0.9 08~

07 0.6.

0e_

& 0.4.

03-02 0.1 4 0.0 50 100 150 C

Dose %

Page 1 ToxCalc v5.0.23 Reviewed by

Abatone Larval Development Test-Proportion Nort..al Start Date:

01109/2003 Test ID: FGL0103036 End Date:

01/1112003 Lab ID:

CAABC Sample Date: 01/08/2003 Protocol: MBP 90-Anderson et al.

Iomments:

Discharqe 001 SP300147 Sample ID:

Sample Type:

Test Species:

CAOOOOOOO EFF1 -POTW HR-Halhotis rufescens Dose-Response Plot 1;

09:

08 i 07:

o 06Z z

0 0.5:

o 04:

0IL 03:

02:

01:

A.

C9 0C.)

z 0

N Co C))

Page 2 ToxCalc v5.0.23 Reviewed bye~dŽ

. Start Date 0110912003 Test End Date.

01/11/2003 Lab I Sample Date: 01/08/2003 Prot(

Comments.

Discharqe 001 SP3001' Abaiohe Larval Development Test-Proportion Nora..l ID FGL0103036 Sample ID.

CAOOOOOOO ID:

CAABC Sample Type EFF1-POTW ocol MBP 90-Anderson et al.

Test Species:

HR-Haliotis rufescens 47 Auxiliary Data Summary Conc-%

Parameter N Control Temp C 10 18 32 56 100 N Control pH 10 18 32 56 100 N Control DO mgIL 10 18 32 56 100 N Control Salinity ppt 10 18 32 56 100 Mean Min 16.50 16.50 16.50 16.50 16.50 16.50 16.50 16.50 16.50 16.50 16.50 16.50 7.70 7.70 7.70 7.70 7.70 7.70 7.70 7.70 7.75 7.70

-7.75 7.70 6.65 5.90 6.65 6.20 6.35 5.60 6.35 5.60 6.35 5.60 6.30 5.50 34.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 Max 16.50 16.50 16.50 16.50 16.50 16.50 7.70 7.70 7.70 7.70 7.80 7.80 7.40 7.10 7.10 7.10 7.10 7.10 34.00 34.00 34.00 34.00 34.00 34.00 SD 000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.07 0.07 1.06 0.64 1.06 1.06 1.06 1.13 0.00 0.00 0.00 0.00 0.00 0.00 CV%

000 0.00 0.00 0.00 0.00 0.00 0.00 000 0.00 0.00 3.43 343 15.49 12.00 16.22 16.22 16.22 16.88 0.00 0.00 0.00 0.00 0.00 0.00 Page 3 ToxCalc v5.0.23 Reviewed by &-

A

/AQUATIC W BIOASSAY &

CONSULTING LABORATORIES, INC TOXICITY TESTING

OCEANOGRAPHIC RESEARCH CHRONIC ABALONE DEVELOPMENT BIOASSAY DATE:

09 Jan - 03 STANDARD TOXICANT:

Zinc NOEC =

IC25 =

IC50 =

10.00 ug/h 18.91 ughl 25.27 ug/l Yours very truly, 29 NORTH OLIVE STREET, VENTURA, CA 93001 * (805) 643-5621

Start Date.

0110912003 End Date:

01/11/2003 Sample Date: 0110912003

'omments:

Standard Toxicant Conc-uglL 1

2 Control 0.9800 0.9600 10 0.9600 0.9800 18 0.4700 0.8700 32 0.1100 0.1200 56 0.0000 0.0000 Ab_ _he Larval Development Test-Proportion Nc il Test ID. ABS01.2003 Sample ID:

REF Lab ID.

ABC LABS Sample Type:

ZNS Protocol: MBP 90-Anderson et al.

Test Species:

HR-F-Ref Toxicant SO-Zinc sulfate Haliotis rufescens 3

4 5

0.9900 0.9100 1.0000 0.9700 1.0000 1.0000 0.6700 0.8600 0.9600 0.2700 0.2700 0.3800 0.0000 0.0000 0.0000 Transform: Arcsin Square Root 1-Tailed Isotonic Conc-ugIL Mean N-Mean Mean Min Max CV%

N t-Stat Critical MSD Mean N-Mean Control 0.9680 1.0000 1.4112 1.2661 1.5208 6.966 5

0.9750 1.0000 10 0.9820 1.0145 1.4473 1.3694 1.5208 4.856 5

-0.378 2.230 0.2133 0.9750 1.0000

18 0.7660 0.7913 1.0946 0.7554 1.3694 21.866 5

3.310 2.230 0.2133 0.7660 0.7856

32 0.2300 0.2376 0.4898 0.3381 0.6642 28.578 5

9.634 2.230 0.2133 0.2300 0.2359 56 0.0000 0.0000 0.0500 0.0500 0.0500 0.000 5

0.0000 0.0000 Auxiliary Tests Statistic Critical Skew Kurt Shapiro-Wilk's Test indicates normal distribution (p > 0.01) 0.96317 0.868

-0.448 0.74857 Bartlett's Test indicates equal variances (p = 0.12) 5.90736 11.3449 Hypothesis Test (1-tail, 0.05)

NOEC LOEC ChV TU MSDu MSDp MSB MSE F-Prob df Dunnett's Test 10 18 13.4164 0.10747 0.11026 0.98236 0.02287 7.OE-08 3, 16 Point IC05 ICi0 IC15 IC20 IC25 IC40 IC50 l

ugIL SD 11.866 0.867 13.732 1.600 15.598 1.782 17.464 1.736 18.908 1.661 22.728 1.481 25.274 1.229 Linear Interpolation (200 Resamples) 95% CL(Exp)

Skew 10.500 15.359 1.3824 11.145 20.324 1.0314 11.717 21.032 0.2975 1.0 12.486 21.729 -0.1854 09 13.489 22.619 -0.4348 17.032 26.029 -0.9957 08 21.154 28.237 -0.8460 0.7 CD

- 0.5 0

a 0.4 In 0

0 20 40 60 Dose ug/L Page 1 ToxCalc v5.0.23 Reviewed by

s I

Ab-.se Larval Development Test-Proportion N.

al Start Date:

01/0912003 Test ID: ABSO1.2003 Sample ID:

REF-Ref Toxicant End Date:

01/1112003 Lab ID.

ABC LABS Sample Type:

ZNSO-Zinc sulfate Sample Date: 01/0912003 Protocol: MBP 90-Anderson et al.

Test Species:

HR-Haliotis rufescens Comments:

Standard Toxicant Dose-Response Plot 0.9 0.8

-9 0.7 o 0.6 z

0 0.5 ot 0.4 o! 0.3 02 0.1 1-tail, 0.05 level of significance

-9 0

FS N~

Page 2 ToxCalc v5.0.23 Reviewed byor

Start Date:

0110912003 End Date:

01/11/2003 Sample Date: 01/09/2003 Comments:

Standard Toxicant ALae Larval Development Test-Proportion Nr Al Test ID: ABS01.2003 Sample ID:

REF-Ref Toxicant Lab ID.

ABC LABS Sample Type.

ZNSO-Zinc sulfate Protocol: MBP 90-Anderson et al.

Test Species:

HR-Halhotis rufescens Conc-uglL Parameter Control Temp C 18 32 56 100 Control pH 18 32 56 100 Control DO mg/L 18 32 56 100 Control Salinity ppt 18 32 56 100 Mean 16.50 16.50 16.50 16.50 16.50 7.75 7.75 7.75 7.75 7.75 6.50 6.60 6.45 6.40 6.45 34.00 34.00 34.00 34.00 34.00 Mir 16 16 16 16 16 7.7, 7,

5 5

55, 34.

34.

Auxiliary Data Summary I

Max SD CV%/

.50 16.50 0.00 0.00

.70 7.80 0.07 3.43

.90 7.10 0.85 14.17

.90 7.30 0.99 15.08

.80 7.10 0.92 14.86

.70 7.10 0.99 15.55

.70 7.20 1.06 15.97

.00 34.00 0.00 0.00

,00 34.00 0.00 0.00 Page 3 ToxCalc v5.0.23 Reviewed by f-.

DCL-2003-530, Transmittal of First Quarter 2003 Report on Discharge Monitoring at Diablo Canyon Power Plant

Contents

Text

Dear Mr. Briggs:

Title:

Title:

SUMMARY

SUMMARY

Dear Ms. Harvey:

Dear Ms. Harvey:

Navigation menu

DCL-2003-530, Transmittal of First Quarter 2003 Report on Discharge Monitoring at Diablo Canyon Power Plant

Text

Dear Mr. Briggs:

Title:

Title:

SUMMARY

SUMMARY

Dear Ms. Harvey:

Dear Ms. Harvey:

Navigation menu

Search