Text

Fourth Quarter 2006 Discharge Monitoring Report
	ML070300563
Person / Time
Site:	Diablo Canyon
Issue date:	01/19/2007
From:	Becker J; Pacific Gas & Electric Co
To:	; Office of Nuclear Reactor Regulation, State of CA, Central Coast Regional Water Quality Control Bd
References
	CA0003751, DCL-2007-501
	Download: ML070300563 (103)
	v • d • e

Electric Company R Pacific Gas and Diablo Canyon Power Plant P0. Box 56 Avila Beach, CA 93424 800.545.6000 Date: January 19, 2007 Certified/Return Receipt PG&E Letter DCL-2007-501 #7003-3110-0005-7002-6229*

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 Fourth Quarter 2006 Report on Discharge Monitoring at Diablo Canyon Power Plant (Enclosure 1).

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

Title:

Supervisor, Environmental Operations Phone Number: 545-4439 WDRINPDES Order Number: Order No. 90-09, NPDES No. CA0003751 Type of Report: (check one) QUARTERLY ANNUAL RX 4th Ist nd rd Quarter: (check one): 2 3

0 11 El Year: 2006 (Annual Reports for DCPP are Jan-Dec)

Violation(s) (Place an X by the appropriate choice): I] No (there are no violations to report) El Yes 1/

PG&E Ltr DCL-2007-501 Mr. Briggs, CRWQCB January 19, 2007 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 Limit/Condition:

,e) Dates of Violation(s)

(reference page of report/data sheet):

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

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

(attach additional information as needed)

PG&E Ltr DCL-2007-501 Mr. Briggs, CRWQCB January 19, 2007 Page 3 I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. The results of the influent and effluent monitoring presented are the observed results of the measurements and analyses required by the monitoring program, and is neither an assertion of the adequacy of any instrument reading or analytical result, nor an endorsement of the appropriateness of any analytical or measurement procedure. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.

If you have any questions, please contact Bryan Cunningham at (805) 545-4439.

Sincerely, Name: James R. Becker

Title:

Vice President- Diablo Canyon Operationsand Station Director 2007501/jlk/bkc/kmo

PG&E Ltr DCL-2007-501 Mr. Briggs, CRWQCB January 19, 2007 Page 4 cc: Peter von Langen, CRWQCB 895 Aerovista, #101 San Luis Obispo, CA 93401-7906 California Department of Fish and Game

20. Lower Ragsdale, Suite 100 Monterey, California 93490 Resident Inspector, Terry Jackson U.S. Nuclear Regulatory Commission Diablo Canyon Power Plant 104/5 Regional Administrator U.S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Dr., Suite 400 Arlington, TX 76011-4005 Director, Division of Reactor Projects U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Dr., Suite 400 Arlington, TX 76011-4005 U.S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555 Enclosure

PG&E Letter DCL-2007-501 ENCLOSURE 1 FOURTH QUARTER 2006 REPORT ON DISCHARGE MONITORING AT DIABLO CANYON POWER PLANT

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

PACIFIC GAS AND ELECTRIC COMPANY Fourth Quarter 2006 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 .......................... 1 B. Monitoring of Receiving W aters .................................... 2 C. Sodium Bromide Treatment Program ............................ 3 APPENDIX 1: NPDES Discharge Points APPENDIX 2: Influent and Effluent Monitoring - October 2006 APPENDIX 3: Influent and Effluent Monitoring - November 2006 APPENDIX 4: Influent and Effluent Monitoring - December 2006 APPENDIX 5: Acute Bioassay, November 8-12, 2006 APPENDIX 6: Chronic Bioassay, November 8-10, 2006

OVERVIEW

1. During the fourth quarter of 2006, discharges occurred from Discharge Paths 001 (once through cooling water), 001B, 001D, 001E, 001F, 001G, 001H, 001J, 001L, 001N, 001P, 002, through 015. No discharges occurred from Discharge Paths 0011, 001K, 001M, 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 fourth quarter of 2006, maintenance activities that required draining of closed cooling water systems were performed and are summarized below. PG&E received concurrence from the CCRWQCB in response to letters dated July 19, 1995 (PG&E Letter DCL-95-156), May 23, 1996 (PG&E Letter DCL-96-522), and May 19, 1997 (PG&E Letter DCL-97-533) regarding the use of glutaraldehyde and isothiazolin to control microbiological growth and corrosion in DCPP's closed cooling water systems.

Discharges are drained at a flow rate such that the chronic toxicity level would be well below the "No Observable Effect Concentration" (NOEC) at NPDES Discharge 001.

Date System Volume Glutaraldehyde Isothiazolin (gallons) (mg/I) (mg/I) 10/05/06 Unit 2 CCW 182,100 196 0.0

4. Injections of sulfur hexafluoride (SF6) into DCPP's condensers were performed to detect saltwater leaks during this quarter. CCRWQCB's Sorrel Marks concurred during conversations held in May 1996 that periodic use of SF6 would not increase DCPP's probability of exceeding NPDES permit limitations.

Date Number of Duration Injection Rate of SF6 Injections (sec) (Standard Cubic Feet per Minute) 10/16/06 2 30 10 10/30/06 12 30 5 11/01/06 11 30 10

5. On October 19, 2006 an error occurred during calibration of the Unit 2 discharge chlorine monitor. The error resulted in a discharge chlorine monitor reading slightly lower than expected during the 1300 chemical injection that followed. An engineering evaluation was conducted to verify the accuracy of the monitor reading obtained. The evaluation indicated the monitor reading was in fact inaccurate-low and a more conservative value based on the evaluation was used to replace the 1300 injection residual oxidant monitor reading. The residual oxidant value obtained from the evaluation was supported by monitor readings subsequent to the 1300 injection and discovery of the error.

6. In late October and early November 2006, DCPP replaced a check valve in the outfall pipe of discharge 001 H, discharge for the High Conductivity Tank (HCT). This required re-routing the 001 H waste water (after it's normal filtration and neutralization process) to

the dirty side of the turbine building sump. From there the water flowed through the oily-water-separator and overboard via 001 F. This process did not change the character of HCT waste water. The HCT discharge (001 H re-routed through the 001 F outfall) continued to comply with NPDES permit limitations. This temporary re-route was discussed with CCRWQCB staff prior to initiating the work and written concurrence for the re-route was received on October 18, 2006. As requested by CCRWQCB staff, volumes of water discharged through this temporary re-route were documented and are listed below.

10/25/06 22,732 gallons 10/31/06 22,156 gallons 11/02/06 22,156 qallons Total: 67,044 gallons

7. At 4:00 AM on December 15, 2006 during routine chlorination of the circulating water tunnels for Unit 1, the discharge chlorine monitor momentarily spiked up from a steady residual oxidant reading of 46 pg/L to an instantaneous peak of 97 pg/L, then immediately dropped back down to the 46 pg/L level. The chlorine residual instantaneous maximum for Discharge 001 per DCPP NPDES Permit Order 90-09 is 200 ug/L. However, the calculated discharge limit in accordance with the California Ocean Plan is 89 pg/L. As the monitor reading in excess of the derived Ocean Plan limit could not be invalidated immediately following discovery of the event CCRWQCB staff were notified of the incident by telephone on December 15, 2006.

Subsequent investigation determined that the most probable cause of the event was an electrical disturbance in the discharge monitor 120-Volt AC power supply. The Unit 1 discharge monitor was inspected following discovery of the recorded spike and found to be operating normally and within calibration limits. Unit 1 chemical injection cycles subsequent to the 0400 treatment displayed expected residual chlorine concentrations in the 40-50 ug/L range. Condenser waterbox chlorine monitors recorded normal oxidant curves during the 0400 treatment with no indications of a chemical concentration spike ruling out momentary excess chlorine injection at the seawater system intake. The post condenser dechlorination system was found to be operating within normal parameters with no indications of chemical flow restriction, feed pump volume or pressure loss, significant power supply disruption, or any other evidence of equipment operational anomaly. Furthermore, the chemical injection system is designed to trip-off in the event of a significant equipment fault. No system trip occurred.

In response to this event, the electric power system to the discharge monitors and associated recording equipment is being equipped with an in-line uninterruptible power supply (UPS) reserve battery unit with continuous voltage and amperage output conditioning.

SUMMARY

OF MONITORING PROGRAM A. Monitorinq of Plant Influent and Effluent

1. The results of the October, November, and December 2006 plant influent and effluent monitoring are reported on Discharge Self Monitoring Report (DSMR) forms in Appendices 2, 3, and 4, respectively.

2. The laboratory report for one Acute Bioassay on water sampled from Discharge 001, performed November 8-12, 2006, is included in Appendix 5. The bioassay results show that acute toxicity was 0.00 TUa (no mortality).

3. The laboratory report for one Chronic Bioassay on water sampled from Discharge 001, performed November 8-10, 2006, is included in Appendix 6. The bioassay results show that chronic toxicity was 1.0 TUc (no chronic toxicity).

B. Monitoring of Receiving Waters

1. Ecological Studies at Diablo Canyon Ecological studies in the vicinity of Diablo Cove conducted during the fourth quarter continued under the Diablo Canyon Receiving Water Monitoring Program (RWMP) as requested in a letter from the Central Coast Regional Water Quality Control Board (CCRWQCB) dated December 9, 1998, and as detailed in a letter (PG&E Letter DCL-99-503) dated January 8, 1999. This program includes tasks from the Ecological Monitoring Program (EMP) with additional stations and increased sampling frequencies. The RWMP replaces the EMP and the Thermal Effects Monitoring Program (TEMP).

2. In Situ Bioassay Results of the Mussel Watch Program will be reported to the CCRWQCB directly from the California Department of Fish and Game in the Department's periodic report for this program.

C. Sodium Bromide Treatment Program Diablo Canyon Power Plant is continuing the use of generic sodium bromide to control macrofouling growth for both Units. Both circulating water conduits of each Unit can be chemically treated simultaneously. Each treated conduit typically receives a twenty-minute injection every four hours (six injections a day) of sodium bromide (NaBr) in combination with sodium hypochlorite (NaOCI). Each injection attempts to achieve a target concentration of 200 ppb Total Residual Oxidant (TRO) when measured at the inlet waterbox of the condenser. Discharge TRO, measured at the plant outfall, remains below NPDES limitations.

Both conduits of Unit 1 were treated with simultaneous injections of sodium bromide and sodium hypochlorite six times a day through the first month of the fourth quarter of 2006.

Sodium bromide injections were shut down in early November in preparation for a Unit 1 tunnel cleaning. Sodium hypochlorite injections to the Unit 1 main conduits were maintained until November 2 1st when the Unit 1 injection system was secured for the seawater system cleaning. Simultaneous injections of sodium bromide and sodium hypochlorite were restarted in late November as circulating water pumps were returned to service following the maintenance activity. There was one other brief interruption in the Unit-1 treatment schedule in early December when a Unit 2 circulating water pump automatically shut down.

Both conduits of Unit 2 were treated with simultaneous injections of sodium bromide and sodium hypochlorite six times a day throughout the first two months of the fourth quarter. In mid-December there were interruptions in the treatment schedule due to an ocean condition induced condenser cleaning, a circulating water pump 2-1 shut down,

and a tunnel cleaning for the 2-1 seawater conduit. Simultaneous injections of sodium bromide and sodium hypochlorite continued normally for both Unit 2 conduits after return to full-power operations on December 1 8 th.

APPENDIX 1 DIABLO CANYON POWER PLANT NPDES DISCHARGE POINTS DISCHARGE NUMBER DESCRIPTION 001 Once-Though Cooling Water 001 A Firewater Systems 001 B Auxiliary Salt Water Cooling System 001 C Discharge Deleted 001 D Liquid Radioactive Waste Treatment System 001 E Service Cooling Water System 001 F Turbine Building Sump 001 G Make-Up Water System Waste Effluent 001 H Condensate Demineralizer Regenerant 001 I Seawater Evaporator Blowdown 001 J Condensate Pumps Discharge Header Overboard 001 K Condenser Tube Sheet Leak Detection Dump Tank Overboard 001 L Steam Generator Blowdown 001 M Wastewater Holding and Treatment System 001 N Sanitary Wastewater Treatment System 001 P Seawater Reverse Osmosis System Blowdown 002 Intake Structure Building Floor Drains 003 Intake Screen Wash 004 Bio Lab and Storm Water Runoff 005, 008, 009, 013, 014, 015 Yard Storm Drains 006, 007, 010, 011,012 Storm Water Runoff 016 Bio Lab Seawater Supply Pump Valve Drain 017 Seawater Reverse Osmosis System Blowdown Drain

APPENDIX 2 DIABLO CANYON POWER PLANT Influent and Effluent Monitoring October 2006

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 1 FACIULTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 /10 / 01 ENDING 06 /10 / 31 06 CA0003751 STATION INFLUENT EFFLUENT001 DELTATEMP EFFLUENT 001 INFLUENT EFFLUENT 001 EFFLUENT001P EFFLUENT002 ANALYSIS TEMPERATURE TEMPERATURETEMPERATURE FLOW pH pH pH pH UNITS DEGREES F DEGREES F DEGREES F MGD pHUNITS pHUNITS pHUNITS pHUNITS SMPL TYPE METERED METERED METERED RECORDED GRAB GRAB GRAB GRAB FREQ. CONTINUOUS CONTINUOUS CONTINUOUS DAILY MONTHLY MONTHLY (" MONTHLY MONTHLY 1 57.0 75.9 18.9 2486 2 57.2 76.2 19.0 2486 3 56.7 75.7 19.0 2486 4 56.9 76.0 19.1 2486 5 57.7 76.5 18.8 2486 6 57.6 76.7 19.1 2486 7 56.4 75.5 19.1 2486 8 55.2 74.3 19.1 2486 9 56.1 75.1 19.0 2486 10 57.8 76.6 188 2486 2 7.6 2 8.0 11 58.8 77.7 18.9 2486 12 59.0 78.2 19.2 2486 13 59.1 78.2 19.1 2486 7.9 7.9 14 58.5 77.4 18.9 2486 15 57.6 76.5 18.9 2486 16 56.7 75.7 19.0 2486 17 56.9 75.9 19.0 2486 18 57.4 76.1 18.7 2486 19 57.3 76.1 18.8 2486 20 57.3 76.3 19.0 2486 21 57.8 76.8 19.0 2486 22 57.6 76.7 19.1 2486 23 57.2 76.3 19.1 2486 24 57.5 76.9 19.4 2486 25 57.8 76.9 19.1 2486 26 57.8 76.7 18.9 2486 27 58.2 77.0 18.8 2486 28 58.6 77.4 18.8 2486 29 59.1 78.0 18.9 2486 30 58.4 77.4 19.0 2486 31 58 77.3 19.0 2486 MONTHLY AVG 57.6 76.6 19.0 2486 7.9 7.9 7.6 8.0 MONTHLY HIGH 59.1 78.2 19.4 2486 7.9 7.9 7.6 8.0 MONTHLY LOW 55.2 74.3 18.7 2486 7.9 7.9 7.6 7.9 TIMES EXCEEDED NO UMIT NO UMIT MAX22 = 0 MAX 2760 = 0 NO UMIT NO UMIT NO UMIT NO UMIT TIMES EXCEEDED (*)

TIMES EXCEEDED 2 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

EXCEPT DURING DEMUSSEUNG.

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

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 2 FACIULTY I.D. YEAR I MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06 /10 / 01 ENDING 06 / 10 I 31 06 CA0003751 STATION EFFLUENT OD3 EFFLUENT O04 EFFLUENT001N EFFLUENT 001P EFFLUENT 003 EFFLUENT 001F EFFLUENT 001 EFFLUENT 001 ANALYSIS . pH pH OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE TCHLOR RES CHLORINE USED UNITS pHUNITS pHUNITS mg/i mg/I mgfl mg/n ug/l lbs/day SMPLTYPE GRAB GRAB COMPOSITE GRAB GRAB GRAB GRAB (... RECORDED FREQ. MONTHLY MONTHLY WEEKLY WEEKLY (*) WEEKLY ** MONTHLY 2 per CYCLE MONTHLY 1 13 922 2 10 922 3 < 10 898 4 15 835 5 3 ND(5) 60 806 6 55 778 7 55 749 8 50 749 9 50 711 10 7.9 7.9 42 691 11 24 691 12 3 ND(5) ND(5) 38 720 13 42 756 14 46 763 15 46 763 16 46 763 17 3 ND(5) 46 763 18 66 763 19 80 749 20 60 706 21 32 677 22 35 677 23 29 677 24 3 ND(5) 87 677 25 38 691 26 46 706 27 32 706 28 24 706 29 24 706 30 29 706 31 24 720 MONTHLY AVG 7.9 7.9 ND(5) NO NO ND(5) 40 747 MONTHLY HIGH 7.9 7.9 ND(5) DISCHARGE DISCHARGE ND(5) 87 922 MONTHLY LOW 7.9 7.9 ND(5) ND(5) < 10 677 TIMESEXCEEDED NO UMIT NO UMIT MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 IMAX200=0 NO UMIT TIMES EXCEEDED D MAX20=0 D MAX20=0 DMAX20=0 DMAX20=0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

WHEN 001N IS DISCHARGING TO 001P.

WHEN 001 P IS DISCHARGING TO 003.

CONTINUOUS CHLORINE MONITORING USED INSTEAD OF GRAB I PRINCIPAL EXECUTIVE OFFICER JAMES R. BECKER

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION P0 BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 3 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06 / 10 / 01 ENDING 06 / 10 / 31 06 CA0003751 STATION EFF 001N=>003 EFF001lNm003 EFFLUENT 001D EFFLUENT 001F ANALYSIS TOTL COLIFORM FECAL COLIFORM SUSPENDED SOLIDS SUSPENDED SOUDS UNITS MPN/100ml MPN/100rd mgi1Ist FLTR mg/i2nd FLTR mg/1NET mg/11st FLTR mgl/ 2nd FLTR mg/1 NET SMPL TYPE GRAB GRAB GRAB GRAB FREQ. 4 TIMESNWEEK4 TIMESAWEEK MONTHLY MONTHLY 1I 2

3 4 3 ND(5) 6 7

8 9 3 ND(5) 10 11 12 2 21 2 < 1 2 21 13 2 27 2 < 1 2 27 14 15 16 17 18 19 20 21 22 23 24 25 2 29 2 1 2 27 26 27 28 29 3D 31 MONTHLY AVG NO NO **< 5 21 MONTHLY HIGH DISCHARGE DISCHARGE 28 22 MONTHLY LOW ND(5) 21 TIMES EXCEEDED 80% SMPLS>IK MEAN>200= NO UMIT NO UMIT MO AVG 30 = 0 NO UMIT NO UMIT MO AVG 30 = 0 TIMES EXCEEDED 90 % SMPLS>400 DMAX 100 = 0 D MAX100 = 0 TIMES EXCEEDED I MAX>10K REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

- FLOW-WEIGHTED AVERAGES REPORTED.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M) 4 FACIUTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 10 I 01 ENDING 06 / 10 / 31 06 CA0003751 STATION EFFLUENT 001G EFFLUENT 001H ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mg/i1st FLTR mg/i2nd FLTR mg/iNET mgl 1stFLTR mg/l 2nd FLTR mraiNET SMPLTYPE GRAB GRAB FREQ. MONTHLY MONTHLY 1 13 12 ND(5) 2 3 < 1 ND(5) 4 5

6 7

B 9

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

MONTHLY HIGH ND(5) ND(5)

MONTHLY LOW ND(5) ND(5)

TIMESEXCEEDED NO UMIT NO UMIT MO AVG 30=-0 NO UMIT NO UMIT MO AVG 30=0 TIMESEXCEEDED DMAX100 = 0 DMAX 100 = 0 TIMESEXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M) 5 FACIUTY I.D. YEAR I MO/ DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 /10 1 01 ENDING 06 /10 I 31 06 CA0003751 STATION EFFLUENT 0011 EFFLUENT 001J ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mg/l 1st FLTR mg/12nd FLTR mg/1NET mg/11st FLTR mg/12nd FLTR mrg/NET SMPL TYPE GRAB GRAB FREQ. MONTHLY MONTHLY 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG NO NO MONTHLY HIGH DISCHARGE DISCHARGE MONTHLY LOW TIMES EXCEEDED NO UMIT NO UMIT MO AVG 30 = 0 NO UMIT NO UMIT MO AVG 30 0 TIMES EXCEEDED MAX100 = 0 MAX 100 = 0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M) 6 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 /10 01 ENDING 06 /10 / 31 06 CA0003751 STATION EFFLUENT001K EFFLUENT 001L ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mg/i1st FLTR mgl 2nd FLTR mg/1NET mg/i1st FLTR mg/1 2nd FLTR mg/iNET SMPLTYPE GRAB GRAB FRED. MONTHLY MONTHLY 2

3 4

5 6 2 < 1 2 ND(5) 7 8

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

MONTHLY HIGH DISCHARGE ND(5)

MONTHLY LOW ND(5)

TIMES EXCEEDED NO UMIT NO UMIT MO AVG 30 = 0 NO UMIT NO UMIT MO AVG 30 = 0 TIMES EXCEEDED DMAX100 = 0 D MAX 100 = 0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 7 FACIUTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 10 / 01 ENDING 06 / 10 / 31 06 CA0003751 STATION EFFLUENT001M EFFLUENT001N EFFLUENT 001P ANALYSIS SUSPENDED SOLIDS SUSPENDED SLDS SUSPENDED SOLIDS UNITS mg/i 1st FLTR mg/i2nd FLTR mg/iNET mg/i mg/i1st FLTR mg/i2nd FLTR mg/i1 NET SMPL TYPE GRAB COMPOSITE GRAB FRED. MONTHLY WEEKLY MONTHLY 2

3 4

5 14 6

7 8

9 10 5 < 1 5 11 12 12 13 14 15 16 17 6 18 19 20 21 22 23 24 9 25 26 27 28 29 30 31 MONTHLY AVG NO 10 5 MONTHLY HIGH DISCHARGE 14 5 MONTHLY LOW 6 5 TIMES EXCEEDED NO UMIT NO UMIT MO AVG 30 = 0 MO AVG 60 0 NO UMIT NO LIMIT MO AVG 30 = 0 TIMES EXCEEDED DMAX100 = 0 DMAX100 = 0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M) 8 FACIUTY I.D. YEAR/MO/DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 /10 / 01 ENDING 06 / 10 / 31 06 CA0003751.

STATION EFFLUENT002 EFFLUENT 003 ANALYSIS SUSPENDED SOUDS SUSPENDED SOLIDS UNITS mg/i 1st FLTR mgri2nd FLTR mg/iNET mg/i1st FLTR mg/!2nd FLTR mg/iNET SMPLTYPE GRAB GRAB FREQ. MONTHLY MONTHLY 1

2 3

4 5

6 7

8 9

10 2 11 2 < 1 2 11 2 4 2 < 1 2 ND(5) 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG 11 ND(5)

MONTHLY HIGH 18 ND(5)

MONTHLY LOW 5 ND(5)

TIMES EXCEEDED NO UMIT NO UMIT MO AVG 30 = 0 NO UMIT NO UMIT MO AVG 30 =0 TIMES EXCEEDED DMAX 100 = 0 D MAX100 = 0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION P0 BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 9 FACILITY I.D. YEAR / MO/ DAY YEAR I MO / DAY STATE CODE NPDES PERMIT #

3 402003001 BEGINNING 06 /10 / 01 ENDING 06 / 10 I 31 06 CA0003751 STATION EFFLUENT 003 EFFLUENT 001N EFFLUENT 001 EFFLUENT 001 EFFLUENT 001 EFFLUENT 001 ANALYSIS SUSPENDED SOLIDS SE'TL SOLIDS T CHROMIUM COPPER NICKEL ZINC UNITS mg/I1st FLTR mg/i2nd FLTR mg/1NET ml/1 ug/1 ug1 ug/1 ugl SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB FREQ. WEEKLYWHEN 001N&001P= 003 WEEKLY MONTHLY MONTHLY MONTHLY MONTHLY 2

3 4

5 ND(0.1) 6 7

8 9

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

MONTHLY HIGH DISCHARGE ND(O.1) ND(10) ND(10) ND(10) ND(10)

MONTHLY LOW ND(O.1) ND(10) ND(10) ND(10) ND(10)

TIMES EXCEEDED NO UMIT NO LIMIT MO AVG 30 = 0 MO AVG 1.0 0 6M-MED 10 =0 6M-MED 10 =0 6M-MED 30 =0 6M-MED 70=-0 TIMESEXCEEDED DMAX100 = 0 DMAX3.0 = 0 DMAX40 = 0 DMAX50 = 0 DMAX100 = 0 DMAX380 = 0 TIMES EXCEEDED I MAX 100=0 IMAX 140=0 IMAX260=0 I MAX990=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 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 1 FACIUTY I.D. YEAR / MO / DAY YEAR I MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 10 / 01 ENDING 06 /10 / 31 06 CA0003751 STATION INFLUENT INFLUENT INFLUENT INFLUENT EFFLUENT 001 EFFLUENT 001D EFFLUENT001G EFFLUENT001H ANALYSIS TCHROMIUM COPPER NICKEL AMMONIA (N) AMMONIA (N) OIL&GREASE OIL&GREASE OIL&GREASE UNITS ug/1 ug/1 ug/1 ug/1 ugl1 mg/i mg/1 mg/i SMPLTYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. JNAP/JUIJOCT JNAP/JUL/OCT JNAP/JUIJOCT JNAP/JULIOCT JNAP/JUI*OCT JNAP/JUL/OCT JN/AP/JUL/OCT JANAP/JULJOCT 1 ND(5) 2 3 ND(5) 4 ND(5) 5 6

7 8

9 10 11 12 13 ND(10) ND(10) ND(10) ND(200) ND(200) 5 14 15 16 17 18 19 20 21 22 23 24 25 ND(5) 26 27 28 29 30 31 MONTHLYAVG ND(10) ND(10) ND(10) ND(200) ND(200) < 5 ND(5) ND(5)

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

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

TIMES EXCEEDED NO UMIT NO LIMIT NO UMIT NO UMIT 6M-MED 3060 = 0 MO AVG15 =0 MO AVG15 =0 MO AVG15 = 0 TIMES EXCEEDED DMAX12240 = 0 DMAX20 = 0 DMAX20 = 0 DMAX20 = 0 TIMES EXCEEDED I MAX 30600 = 0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

FLOW-WEIGHTED AVERAGE RESULT REPORTED.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (Q) 2 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 10 / 01 ENDING 06 / 10 I 31 06 CA0003751 STATION EFFLUENT0011 EFFLUENT 001J EFFLUENT001K EFFLUENT001L EFFLUENT 001M EFFLUENT 001P EFFLUENT 002 EFFLUENT 003 ANALYSIS' OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE UNITS mg/l mgi mg/1 mgi1 mg/1 mgo/ mg/1 mg/I SMPLTYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. JAIAP/JUL/OCT JNAP/JUL/OCT JANAP/JUL/OCT JANAP/JUL/OCT JANAP/JUL/OCT JANAP/JUL/OCT JNAP/JUL/OCT JA/AP/JUUOCT 2

3 4

5 6 2 ND(5) 7 8

9 10 ND(5) 2 ND(5) ND(5) 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG NO NO NO ND(5) NO ND(5) ND(5) ND(5)

MONTHLY HIGH DISCHARGE DISCHARGE DISCHARGE ND(5) DISCHARGE ND(5) ND(5) ND(5)

MONTHLY LOW ND(5) ND(5) ND(5) ND(5)

TIMESEXCEEDED MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 TIMESEXCEEDED DMAX20 = 0 DMAX20 = 0 DMAX 20 = 0 D MAX20 = 0 D MAX20 = 0 D MAX 20 = 0 D MAX20 = 0 DMAX20 = 0 TIMESEXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (Q) 3 FACIUTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 10 / 01 ENDING 06 /10 I 31 06 CA0003751 STATION EFFLUENT OD4 EFFLUENT 001 EFFLUENT001D EFFLUENT001H EFFLUENT001L EFFLUENT001F ANALYSIS OIL&GREASE TOXCONCEN CADMIUM CADMIUM CADMIUM CADMIUM 1

UNITS mg1l TU ug1 ug/1 ug/1 ugl1 SMPL TYPE GRAB GRAB QTRLY COMP QTRLYCOMP QTRLY COMP 1 WEEK COMP FREQ. JNAP/JUL/OCT JNAP/JUL/OCT JA'APIJUIJOCT JAIAP/JULIOCT JANAP/JUL/OCT JANAP/JUL/OCT 2

3 ND(10) 4 ND(10) 5 6

7 8

9 10 ND(5) ND(10) 11 2 ND(10) 12 ND(I0) 13 14 15 16 17 18.

19 20 21 22 23 24 25 26 27 28 29 30 31 1 MONTHLY AVG ND(5) ND(10) ND(10) ND(10) ND(10)

MONTHLYHIGH ND(S) ND(10) ND(10) ND(10) ND(10)

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

TIMESEXCEEDED MO AVG 15 =0 NO UMIT NO ULMIT NO UMIT NO UMIT TIMESEXCEEDED D MAX20 = 0 TIMESEXCEEDED 6M-MED 0.26=0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

TOXICITY SAMPUNG AND TESTING PERFORMED INNOVEMBER.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PD BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGES (0) 4 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 /10 I 01 ENDING 06 / 10 I 31 06 CA0003751 STATION EFFLUENT 061D EFFLUENT001H EFFLUENT001L EFFLUENT 001F EFFLUENT 001D EFFLUENT 001H EFFLUENT001L EFFLUENT001F ANALYSIS CHROMIUM TCHROMIUM TCHROMIUM TCHROMIUM COPPER COPPER COPPER COPPER UNITS ug/1 ug/1 ug/1 ughl *ugh1 ug/1 ugh1 ug/1 SMPL TYPE QTRLY COMP OTRLYCOMP OTRLYCOMP 1 WEEKCOMP OTRLYCOMP OTRLY COMP QTRLYCOMP 1 WEEK COMP FREQ. JAJAP/JULJOCTJAIAP/JUL/OCTJANAPIJUL/OCTJPJAP/JULJOCT JAAPIJUIJOCT JANAPIJUIJOCT JAIAP/JUIJOCT JNAP/JUUOCT 2

3 19 39 4 23 21 5

6 7

8 9

10 ND(10) 10 11 2 ND(10) 2 ND(10) 12 ND(10) 18 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG ND(10) 20 ND(10) ND(10) 10 30 ND(10) 18 MONTHLY HIGH ND(10) 23 ND(10) ND(10) 10 39 ND(10) 18 MONTHLYLOW ND(10) 19 ND(10) ND(10) 10 21 ND(10) 18 TIMES EXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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 B95 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (Q) 5 FACIULTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 10 1 01 ENDING 06 / 10 / 31 06 CA0003751 STATION EFFLUENT 001D EFFLUENT 001H EFFLUENT 0011L EFFLUENT 001F EFFLUENT001D EFFLUENT 001H EFFLUENT001L EFFLUENT001F ANALYSIS LEAD LEAD LEAD LEAD MERCURY MERCURY MERCURY MERCURY UNITS ug/1 ugf1 ug/1 ugh ugl1 ug/1 ug/1 ug/1 SMPL TYPE OTRLY COMP OTRLY COMP OTRLY COMP 1WEEK COMP OTRLYCOMP OTRLYCOMP OTRLYCOMP 1 WEEKCOMP FREQ. JAAPIJULIOCT JNAP/JUL/OCT JNAP/JUL/OCT JNAP/JULUOCT JNAP/JUL/OCT JANAP/JULIOCT JNAP/JULJOCT JNAP/JULUOCT 2

3 ND(10) ND(0.20) 4 ND(I0) ND(0.20) 5 6

7 8

9 10 ND(10) ND(0.20) 11 2 ND(10) 2 ND(0.20) 12 ND(10) ND(0.20) 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) ND(10) ND(0.20) ND(0.20) ND(0.20) ND(0.20)

MONTHLY HIGH ND(10) ND(10) ND(10) ND(10) ND(0.20) ND(0.20) ND(0.20) ND(0.20)

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

TIMES EXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 6 FACILITY I.D. YEAR ! MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06 / 10 / 01 ENDING 06 /10 / 31 06 CA0003751 STATION EFFLUENT001D EFFLUENT 001H EFFLUENT0011 EFFLUENT 001F EFFLUENT001D EFFLUENT001H EFFLUENT 001L EFFLUENT001F ANALYSIS NICKEL NICKEL NICKEL NICKEL SILVER SILVER SILVER SILVER UNITS ug/ ug/1 ugl1 ugl1 ugh1 ug/1 ug/1 ughi SMPLTYPE QTRLY COMP QTRLY COMP QTRLY COMP 1WEEK COMP QTRLY COMP OTRLY COMP QTRLYCOMP 1 WEEK COMP FREQ. JNAPIJUIJOCT JNAP/JUL/OCT JNAP/JUL/OCT JNAP/JUL/OCT JAIAP/JULIOCT JANAP/JULIOCT JAAP/JULJOCT JANAP/JUIJOCT 2

3 17 ND(10) 4 19 ND(10) 5 6

7 8

9 10 ND(10) ND(10) 11 2 ND(10) 2 ND(10) 12 15 ND(10) 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLYAVG ND(10) 18 ND(10) 15 ND(10) ND(10) ND(10) ND(10)

MONTHLY HIGH ND(10) 19 ND(10) 15 ND(10) ND(10) ND(10) ND(10)

MONTHLY LOW ND(10) 17 ND(10) 15 ND(10) ND(10) ND(10) ND(10)

TIMESEXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO LIMIT NO UMIT TIMESEXCEEDED TIMESEXCEEDED 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 PD BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 7 FACILITY I.D. YEAR / MO / DAY YEAR i MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 10 / 01 ENDING 06 / 10/ 31 06 CA0003751 STATION EFFLUENT 001D EFFLUENT 001H EFFLUENT 001L EFFLUENT 001F ANALYSIS ZINC ZINC ZINC ZINC UNITS ug/1 ug/1 ug/1 ug/1 SMPL TYPE QTRLY COMP QTRLY COMP QTRLY COMP 1WEEK COMP FREQ. JA/AP/JUUOCT JA/AP/JU./OCT JAIAP/JUIJOCT JNAP/JUI/OCT 2

3 10 4 12 5

6 7

8 9

10 109 11 2 ND(10) 12 33 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG 109 11 ND(10) 33 MONTHLY HIGH 109 12 ND(10) 33 MONTHLYLOW 109 10 ND(10) 33 TIMES EXCEEDED NO LIMIT NO UMIT NO UMIT NO UMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION P0 BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 8 FACIUTY I.D. YEAR /MO /DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06 /10 / 01 ENDING 06/ 10 / 31 06 CA0003751 STATION EFFLUENT 001D EFFLUENT 001F EFFLUENT 0011 EFFLUENT 001L EFFLUENT 001M ANALYSIS COPPER COPPER COPPER COPPER COPPER UNITS mg/i mg/i mg/i mg/1 mg/l SMPL TYPE 24-HR COMP. 24-HR COMP. 24-HR COMP. 24-HR COMP. 24-HR COMP.

FREQ. METAL CLNG METAL CLNG METAL CLNG METAL CLNG METAL CLNG 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG NO NO NO NO NO MONTHLY HIGH DISCHARGE DISCHARGE DISCHARGE DISCHARGE DISCHARGE MONTHLY LOW TIMES EXCEEDED MO AVG 1 = 0 MO AVG 1 = 0 MO AVG 1 = 0 MO AVG 1 =0 MO AVG 1 = 0 TIMES EXCEEDED DMAX1 =0 DMAX1 =0 DMAX1 =0 DMAX1 =0 DMAX1 =0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 9 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 10 / 01 ENDING 06 / 10 I 31 06 CA0003751 STATION EFFLUENT001D EFFLUENT001F EFFLUENT0011 EFFLUENT 01 L EFFLUENT001M ANALYSIS [RON [RON IRON IRON IRON UNITS mg/1 mg/1 mg/i mg/l mg/i SMPL TYPE 24-HR COMP. 24-HR COMP. 24-HRCOMP. 24-HRCOMP. 24-HRCOMP.

FRED. METAL CLNG METAL CLNG METAL CLNG METAL CLNG METAL CLNG 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG NO NO NO NO NO MONTHLY HiGH DISCHARGE DISCHARGE DISCHARGE DISCHARGE DISCHARGE MONTHLY LOW TIMES EXCEEDED MOAVG 1=0 MOAVG 1=0 MOAVGI=0 MOAVG 1=0 MOAVG 1=0 TIMES EXCEEDED DMAX1 =0 DMAX1 =0 DMAX1 =0 DMAX1 =0 DMAX1 =0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE- (A) 1 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 10 / 01 ENDING 06 / 10 / 31 06 CA0003751 STATION EFFLUENT 001 INFLUENT EFFLUENT INFLUENT EFFLUENT 001 INFLUENT EFFLUENT 001 INFLUENT ANALYSIS TITANIUM ARSENIC ARSENIC CADMIUM CADMIUM LEAD LEAD ZINC UNITS ug /1 ug/1 ug/1 ugl1 ug/1 ugli ug/1 ugh1 SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 8

9 10 11 12 13 ND(10) 14 15 16 17 18 19 10 1.5 1.5 0.03 0.03 0.02 0.05 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG 10 1.5 1.5 0.03 0.03. 0.02 0.05 ND(I0)

MONTHLYHIGH 10 1.5 1.5 0.03 0.03 0.02 0.05 ND(10)

MONTHLY LOW 10 1.5 1.5 0.03 0.03 0.02 0.05 ND(1 0)

TIMES EXCEEDED NO UMIT NO UMIT 6M-MED 30 = 0 NO UMIT 6M-MED 10 =0 NO UMIT 6M-MED 10 0 NO UMIT TIMES EXCEEDED DMAX150 = 0 DMAX20 = 0 DMAX4Q = 0 TIMES EXCEEDED I MAX400=0 I MAX50- 0 I MAX100 =0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

INFLUENT ANALYSIS PERFORMED FOR COMPARISON TO EFFLUENTS.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 2 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06 / 10 / 01 ENDING 06 / 10 / 31 06 CA0003751 STATION INFLUENT EFFLUENT 001 INFLUENT EFFLUENT 001 INFLUENT EFFLUENT 001 INFLUENT EFFLUENT 001 ANALYSIS MERCURY MERCURY SILVER SILVER CYANIDE CYANIDE PHENOLIC CMP PHENOUC CMP UNITS ug!1 ugl1 ug/1 ug/1 ug/1 ugh1 ug/1(NONCL) ughl(NONCL)

SMPLTYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 ND(0.00100) ND(0.0010) 0.02 0.02 ND(10) ND(10) ND(11.B2) ND(11.82) 20 21 22 23 24 25 26 27 2B 29 30 31 MONTHLY AVG ND(0.0010) ND(0.0010) 0.02 0.02 ND(10) ND(10) ND(11.82) ND(11.82)

MONTHLYHIGH ND(0.0010) ND(0.0010) 0.02 0.02 ND(10) ND(10) ND(11.82) ND(11.82)

MONTHLY LOW ND(O.0010) ND(0.0010) 0.02 0.02 ND(10) ND(10) ND(11.82) ND(11.82)

TIMES EXCEEDED NO LIMIT 6M-MED 0.2=0 NO UMIT 6M-MED 2.9=-0 NO UMIT 6M-MED 30=-0 NO UMIT 6M-MED 150=0 TIMES EXCEEDED DMAX0.8 =0 DMAX 13.6=0 DMAX 100=-0 DMAX 610-- 0

,TIMESEXCEEDED IMAX2 = 0 IMAX 35= 0 IMAX 260=-0 IMAX 1530=0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

REPORTING UMIT IS SUM OF REPORTING UMITS FOR 8 UNDETECTED ANALYTES.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION P0 BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (A) 3 FACIUTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 10 / 01 ENDING 06 / 10 / 31 06 CA0003751 STATION INFLUENT EFFLUENT 001 EFFLUENT 001D EFFLUENT001D EFFLUENT 001D EFFLUENT 005 EFFLUENT 008 ANALYSIS CHLOR PHENDL CHLOR PHENOL LITHIUM BORON HYDRAZINE OIL&GREASE OIL&GREASE UNITS ug/1 ugh mg/i mg/i mg/i mg/i mg/i 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 10 11 12 13 14 15 16 17 18 19 ND(3.36) ND(3.36) 20 21 22 23 24 25 ND(0.0100) 118 0.005 26 27 28 29 30 31 MONTHLYAVG ...ND(3.36) ...ND(3.36) ND(0.010) 118 0.005 MONTHLY HIGH ND(3.36) ND(3.36) ND(0.010) 118 0.005 MONTHLY LOW ND(3.36) ND(3.36) ND(0.010) 118 0.005 TIMES EXCEEDED NO UMIT 6M-MED 10=0 NO UMIT NO UMIT NO UMIT MO AVG 15=0 MO AVG 15=0 TIMES EXCEEDED DMAX 20=-0 DMAX 20=-0 DMAX 20=-0 TIMES EXCEEDED IMAX 50=-0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

005 AND 008 SAMPLED AND ANALYZED IN NOVEMBER DUE TO LACK OF OCTOBER RAIN.

REPORTING UMIT IS SUM OF REPORTING LIMITS FOR 6 UNDETECTED ANALYTES.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (A) 4 FACIUTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 /10 I 01 ENDING 06 / 10 / 31 06 CA0003751 STATION EFFLUENT 009 EFFLUENT 013 EFFLUENT015 EFFLUENT 016 EFFLUENT017 INFLUENT EFFLUENT 001 ANALYSIS OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE PCB'S PCB'S UNITS mg/1 mg/1 mg/i mg/i mrg/i ug/l ug/1 SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 1

2 3

4 5

6 7

8 9

10 11 12 13 14 15 16 17 18 19 ND(1.59) ND(1.59) 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLYAVG NO NO ND(1.59) ND(1.59)

MONTHLY HIGH DISCHARGE DISCHARGE ND(1.59) ND(1.59)

MONTHLY LOW ND(1.59) ND(1.59)

TIMES EXCEEDED MO AVG 15=0 MO AVG 15=0 MO AVG 15=0 MO AVG 15=0 MO AVG 15=0 NO UMIT NO LIMIT TIMES EXCEEDED DMAX 20=0 DMAX 20=-0 DMAX 20=-0 DMAX 20=0 DMAX20=0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

009,013, AND 015 SAMPLED AND ANALYZED INNOVEMBER DUE TO LACK OF OCTOBER RAIN.

REPORTING UMIT IS SUM OF REPORTING UMITS FOR 7 UNDETECTED ANALYTES.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (A) 5 FACIUTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 10 I 01 ENDING 06 /10 I 31 06 CA0003751 STATION EFFLUENT 001N EFFLUENT 001N EFFLUENT 001N EFFLUENT001N EFFLUENT 001N EFFLUENT 001N EFFLUENT ODIN EFFLUENT001N ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS MOISTURE TOT KJLDL N AMMONIA (N) NITRATE(N) TOT PHOSPHS pH OIL&GREASE BORON SMPLTYPE % mg/kg mg/kg mg/kg mg/kg pHunits mg/kg mg/kg FREQ. GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4 99.0 580 95 ND(1) 210 6.7 6 ND(3) 5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLYAVG 99.0 580 95 ND(1) 210 6.7 6 ND(3)

MONTHLYHIGH 99.0 580 95 ND(1) 210 6.7 6 ND(3)

MONTHLYLOW 99.0 580 95 ND(1) 210 6.7 6 ND(3)

TIMES EXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT TIMES EXCEEDED

,IMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (A) 6 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 /10 / 01 ENDING 06 /10 / 31 06 CA0003751 STATION EFFLUENT001N EFFLUENT 001N EFFLUENT 001N EFFLUENT 001N EFFLUENT001N EFFLUENT001N EFFLUENT001N EFFLUENT 001N ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS CADMIUM COPPER CHROMIUM LEAD NICKEL MERCURY ZINC VOLUME SMPL TYPE mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg tons FRED. GRAB GRAB GRAB GRAB GRAB GRAB GRAB OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 1

2 3

4 ND(0.3) 3 ND(0.5) ND(1) ND(0.5) ND(0.04) 7 0.76 5

6 7

8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG ND(O.3) 3 ND(0.5) ND(1) ND(0.5) ND(0.04) 7 0.76 MONTHLY HIGH ND(0.3) 3 ND(0.5) ND(1) ND(0.5) ND(0.04) 7 0.76 MONTHLY LOW ND(O.3) 3 ND(0.5) ND(1) ND(O.5) ND(0.04) 7 0.76 TIMESEXCEEDED 1OxSTLC=0 10xSTLC=O 10xSTLC=O 10xSTLC=O 10xSTLC=O 1OxSTLC=0 1OxSTLC=0 TIMESEXCEEDED 10 mg/kg=0 250 mg/kg=0 50 mg/kg=0 50 mg/kg=0 200 mg/kg=0 2 mg/kg=0 2500 mg/kg=0 TIMESEXCEEDED TTLC>100=0 TTLC>2500=0 TTLC>500=0 "TLC>1000=0 TTLC>2000=-O TTLC>20=0 "TLC>5000=0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M) 1 FACIUTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 /11/ 01 ENDING 06 /11/ 30 06 CA0003751 STATION INFLUENT EFFLUENT 001 DELTATEMP EFFLUENT 001 INFLUENT EFFLUENT 001 EFFLUENT 001P EFFLUENT 002 ANALYSIS TEMPERATURE TEMPERATURETEMPERATURE FLOW pH pH pH pH UNITS DEGREES F DEGREES F DEGREES F MGD pHUNITS pHUNITS pHUNITS pHUNITS SMPL TYPE METERED METERED METERED RECORDED GRAB GRAB GRAB GRAB FREQ. CONTINUOUS CONTINUOUS CONTINUOUS DAILY MONTHLY MONTHLY I-) MONTHLY MONTHLY 1 58.4 77.4 19.0 2486 2 7.7 2 8.0 2 58.5 77.6 19.1 2486 3 58.1 77.3 19.2 2486 4 56.6 75.7 19.1 2486 5 56.8 75.7 18.9 2486 6 57.4 76.2 1838 2486 7 57.1 75.9 18.8 2486 8 58.1 74.9 18.8 2486 9 54.4 73.3 18.9 2486 10 54.7 73.7 19.0 2486 11 54.5 73.6 19.1 2486 12 54.6 73.7 19.1 2486 13 55.0 74.2 19.2 2486 14 55.3 74.5 19.2 2486 7.9 7.9 15 54.3 73.5 19.2 2486 16 54.6 73.7 19.1 2486 17 54.1 73.2 19.1 2486 18 54.6 73.6 19.0 2486 19 55.2 74.2 19.0 2488 20 55.3 74.5 19.2 2486 21 55.5 74.7 19.2 2486 22 55.8 75.1 19.3 2486 23 55.5 74.8 19.3 2486 24 54.9 74.3 19.4 2486 25 54.4 73.9 19.5 2486 26 54.3 73.8 19.5 2486 27 55.3 74.3 19.0 1899 28 54.9 74.3 19.4 1925 29 53.9 73.9 20.0 1965 30 54.1 73.8 19.7 2486 31 MONTHLY AVG 53.7 72.2 18.6 2352 7.9 7.9 7.7 8,0 MONTHLY HIGH 58.5 77.6 20.0 2486 7.9 7.9 7.7 8.0 MONTHLY LOW 53.9 73.2 18.8 1899 7.9 7.9 7.7 8.0 TIMES EXCEEDED NO UMIT NO UMIT MAX22 = 0 MAX2760 0 NO UMIT NO UMIT NO UMIT NO UMIT TIMES EXCEEDED ()

TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

EXCEPT DURING DEMUSSEUNG.

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

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 2 FACIUTY I.D. YEAR / MO / DAY YEAR / MO I DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 11 / 01 ENDING 06 / 11 I 30 06 CA0003751 STATION EFFLUENT 003 EFFLUENT004 EFFLUENT 001N EFFLUENT 001P EFFLUENTE03 EFFLUENT 001F EFFLUENT001 EFFLUENT 001 ANALYSIS pH pH OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE T CHLOR RES CHLORINE USED UNITS pHUNITS pHUNITS mglm m/g mg/1 ug/i lbs/day SMPLTYPE GRAB GRAB COMPOSITE GRAB GRAB GRAB GRAB (I-) RECORDED FREQ. MONTHLY MONTHLY WEEKLY WEEKLY I) WEEKLY (") MONTHLY 2 per CYCLE MONTHLY 1 7.7 8.0 3 ND(5) 29 734 2 26 734 3 ND(5) 26 706 4 20 677 5 24 677 6 16 698 7 32 720 8 35 691 9 3 ND(5) 87 648 10 87 598 11 38 576 12 35 576 13 32 576 14 2 7.9 32 586 15 38 605 16 3 ND(5) 55 605 17 55 583 18 42 562 19 35 562 20 38 562 21 3 ND(5) 35 521 22 24 288 23 29 288 24 35 288 25 31 288 26 29 288 27 31 288 28 3 ND(5) 31 288 29 38 367 30 42 403 31 A MONTHLY AVG 7.8 8.0 ND(5) NO NO ND(5) 37 533 MONTHLY HIGH 7.9 8.0 ND(5) DISCHARGE DISCHARGE ND(5) 87 734 MONTHLY LOW 7.7 8.0 ND(5) ND(5) < 7 288 TIMES EXCEEDED NO UMIT NO LIMIT MO AVG 15 = MO AVG 15=0 MO AVG 15 = 0 MO AVG 15=0 1MAX 200 =0 NO UMIT TIMES EXCEEDED DMAX20=0 DMAX20=0 D MAX20=0 DMAX20=0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

WHEN 001N IS DISCHARGING TO 001P.

WHEN 001 P IS DISCHARGING TO 003.

.... CONTINUOUS CHLORINE MONITORING USED INSTEAD PRINCIPAL EXECUTIVE OFFICER JAMES R. BECKER

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILABEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 3 FACILITY I.D. YEAR / MO / DAY YEAR I MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 /11 I 01 ENDING 06 /11 / 30 06 CA0003751 STATION EFF001N=>003 EFF001N-->003 EFFLUENT 001D EFFLUENT001F ANALYSIS TOTL COLIFORMFECAL COLIFORM SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS MPN/100mI MPN/100ml mg/11st FLTR mg/i2nd FLTR mg/iNET mg/i1st FLTR mg/l2nd FLTR mg/iNET SMPL TYPE GRAB GRAB GRAB GRAB FREQ. 4 TIMES/WEEK 4 TIMESAWEEK MONTHLY MONTHLY 1I 2

3 2 18 2 < 1 2 17 4

5 6

7 8 2 ND(5) 9 10 1 ND(5) 11 12 13 2 21 2 < 1 2 21 14 15 16 17 18 19 20 2 6 2 6 21 22 23 24 25 26 27 28 2 3 2 ND(5) 29 2 31 2 < 1 2 31 30 31 MONTHLYAVG NO NO .*< 5 17 MONTHLY HIGH DISCHARGE DISCHARGE 31 18 MONTHLY LOW ND(5) 17 TIMESEXCEEDED 80% SMPLS>IK MEAN>200 = NO UMIT NO UMIT MO AVG 30 = 0 NO UMIT NO UMIT MO AVG 30 = 0 TIMESEXCEEDED 90 % SMPLS>400 DMAX 100 = 0 DMAX100 = 0 MESEXCEEDED I MAX >10K REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

-FLOW-WEIGHTED AVERAGES REPORTED.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M) 4 FACIUTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 11 / 01 ENDING 06 / 11 I 30 06 CA0003751 STATION EFFLUENT 001G EFFLUENT 001H ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mg/I1st FLTR mg/i2nd FLTR mg/iNET mg/I1st FLTR mg/i2nd FLTR mg/iNET SMPL TYPE GRAB GRAB FREQ. MONTHLY MONTHLY 1 < 1 < 1 ND(5) 10 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG ND(5) 10 MONTHLY HIGH ND(5) 10 MONTHLY LOW ND(5) 10 TIMES EXCEEDED NO UMIT NO UMIT MO AVG 30=0 NO UMIT NO UMIT MO AVG 30=0 TIMES EXCEEDED DMAX100= 0 D MAX 100= 0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

ORIGINAL DATA SHEET LOST AFTER RESULTS RECORDED. FIRST FILTER VALUE NOT AVAILABLE.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 5 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 /11 I 01 ENDING 06 /I1 / 30 06 CA0003751 STATION EFFLUENT0011 EFFLUENT 001J ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mg/11st FLTR mg/i2nd FLTR mg/iNET mg/i1st FLTR mg/l 2nd FLTR mg/iNET SMPLTYPE GRAB GRAB FREQ. MONTHLY MONTHLY 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG NO NO MONTHLY HIGH DISCHARGE DISCHARGE MONTHLY LOW TIMES EXCEEDED NO LIMIT NO LIMIT MO AVG 30 =0 NO LIMIT NO LIMIT MO AVG 30 = 0 TIMES EXCEEDED MAX 100 = 0 MAX 100 = 0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUISOBISPO, CA 93401 PAGE: (M) 6 FACILITY I.D. YEAR MO I DAY YEAR I MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 /111/ 01 ENDING 06 /11/ 30 06 CA0003751 STATION EFFLUENT001K EFFLUENT0011 ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mg/i1st FLTR mg/i2nd FLTR mg/iNET mg/i1st FLTR mg/i2nd FLTR mg/1NET SMPL TYPE GRAB GRAB FREO. MONTHLY MONTHLY 1 2< 1 2 ND(5) 2 3

4 5

6 7

8 9

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

MONTHLY HIGH DISCHARGE ND(5)

MONTHLY LOW ND(5)

TIMES EXCEEDED NO UMfT NO LIMIT MO AVG 30 = 0 NO LIMIT NO LIMIT MO AVG 30 = 0 TIMES EXCEEDED D MAX 100 = 0 D MAX 100 = 0 lIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M) 7 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 11 I 01 ENDING 06 / 11 I 30 06 CA0003751 STATION EFFLUENT 001M EFFLUENT001N EFFLUENT 001P ANALYSIS SUSPENDED SOLIDS SUSPENDED SLDS SUSPENDED SOLIDS UNITS mg/11st FLTR mg/i2nd FLTR mg/1NET mg/1 mg/11st FLTR mg/i2nd FLTR mg/eNET SMPL TYPE GRAB COMPOSITE GRAB FREQ. MONTHLY WEEKLY MONTHLY 1 10 < 1 < 1 ND(5) 2 3

4 5

6 7

8 9 15 10 11 12 13 14 15 16 12 17 18 19 20 21 12 22 23 24 25 26 27 28 16 29 30 MONTHLY AVG NO 13 ND(5)

MONTHLY HIGH DISCHARGE 16 ND(5)

MONTHLY LOW 10 ND(5)

TIMESEXCEEDED NO LIMIT NO UMIT MO AVG 30 = 0 MO AVG 60 = 0 NO UMIT NO UMIT MO AVG 30 =0 TIMESEXCEEDED DMAX 100 = 0 D MAX 100 = 0 TIMESEXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 8 FACIUTY I.D. YEAR I MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 /11 I 01 ENDING 06 / 11 / 30 06 CA0003751 STATION EFFLUENT 002 EFFLUENT 003 ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mg/i1st FLTR mg/i2nd FLTR mg/iNET mg/l 1st FLTR mg/1 2nd FLTR mg/l NET SMPLTYPE GRAB GRAB FREQ. MONTHLY MONTHLY 1 2 < 1 2 < 1 2 ND(5) 2 4 2< 1 2 < 5 2

3 4

5 6

7 8

9 10 11 12 13 14 2 23 2 11 2 12 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG ND(5) 8 MONTHLY HIGH ND(5) 12 MONTHLY LOW ND(5) ND(5)

TIMES EXCEEDED NO UMIT NO UMIT MO AVG 30 = 0 NO UMIT NO UMIT MO AVG 30 = 0 TIMES EXCEEDED DMAX 100 = 0 DMAX100 = 0 1IMESEXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M) 9 FACIUTY I.D. YEAR / MO I DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 11 / 01 ENDING 06 / 11 / 30 06 CA0003751 STATION EFFLUENT003 EFFLUENT 001N EFFLUENT001 EFFLUENT 001 EFFLUENT 001 EFFLUENT001 ANALYSIS SUSPENDED SOLIDS SE-FL SOLIDS T CHROMIUM COPPER NICKEL ZINC UNITS mg/11st FLTR mg/i2nd FLTR mg/iNET mill ugu/ ugh ug/1 ugf1 SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB FRED. WEEKLYWHEN 001N&001P 003 WEEKLY MONTHLY MONTHLY MONTHLY MONTHLY 1 ND(0.1) 2 3

4 5

6 7

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

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

MONTHLY LOW ND(0.1) ND(10) ND(10) ND(10) ND(10)

TIMES EXCEEDED NO UMIT NO UMIT MO AVG 30 = 0 MO AVG 1.0 = 0 6M-MED 10 =0 6M-MED 10 =0 6M-MED 30 =0 6M-MED 70=0 TIMES EXCEEDED DMAX100 = 0 DMAX3.0 = 0 DMAX40 = 0 DMAX50 = 0 DMAX100 = 0 DMAX380 = 0 TIMES EXCEEDED IMAX100=0 IMAX140=0 I MAX260=0 IMAX990=0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 1 FACILITY I.D. YEAR / MO / DAY YEAR / MO I DAY STATE CODE NPDES PERMIT*#

3402003001 BEGINNING 06 / 11/ 01 ENDING 06 / 11 / 30 06 CA0003751 STATION INFLUENT INFLUENT INFLUENT INFLUENT EFFLUENT001 EFFLUENT 001D EFFLUENT 001G EFFLUENT 001H ANALYSIS T CHROMIUM COPPER NICKEL AMMONIA (N) AMMONIA (N) OIL&GREASE OIL&GREASE OIL&GREASE UNITS ug/l ug/1 ug/1 ug/1 ug/ mg/1 mgr! mgri SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. JA'AP/JULJOCTJA'AP/JUL/OCT JNAPIJUL/OCT JAIAP/JUL/OCT JNAP/JUIJOCT JNAP/JULIOCT JANAP/JUL/OCT JAIAP/JULJOCT 2 5 3

4 5

6 7

8 9

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

TIMES EXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT 6M-MED 3060 = 0 MO AVG 15 0 MO AVG 15 =0 MO AVG 15 =0 TIMES EXCEEDED DMAX 12240 = 0 D MAX 20 = 0 D MAX 20 = 0 DMAX20 = 0 TIMES EXCEEDED I MAX 30600 = 0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

FLOW-WEIGHTED AVERAGE RESULT REPORTED.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 B95 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 2 FACIUTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 11/ 01 ENDING 06 /11/ 30 06 CA0003751 STATION EFFLUENT0011 EFFLUENT 001J EFFLUENT 001K EFFLUENT 001L EFFLUENT 001M EFFLUENT 001P EFFLUENT 002 EFFLUENT003 ANALYSIS OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL &GREASE OIL&GREASE UNITS mg/, mg!1 mg/ mg/l mgai mg/i mg/r mg/i SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. JANAPJUL/OCTJA/AP/JUIJOCT JNAP/JUL/OCT JNAP/JUL/OCT JANAP/JUL/OCT JANAP/JUL/OCT JA/AP/JUL/OCT JANAP/JUL/OCT 2

3 4

5 6

7 8

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

MONTHLY HIGH ND(5)

MONTHLY LOW ND(5)

TIMESEXCEEDED MOAVG15=O MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 TIMES EXCEEDED DMAX 20 = 0 D MAX 20 = 0 D MAX 20 = 0 DMAX20 = 0 DMAX 20 = 0 DMAX20 = 0 D MAX20 = 0 DMAX20 = 0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 3 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06 / 11 I 01 ENDING 06 / 11 / 30 06 CA0003751 STATION EFFLUENT 0D4 EFFLUENT 001 EFFLUENT001D EFFLUENT 001H EFFLUENTEO0L EFFLUENTO01F ANALYSIS OIL&GREASE TOXCONCEN CADMIUM CADMIUM CADMIUM CADMIUM UNITS mrg/1 TU ug!1 ugvi ugl1 ug/1 SMPL TYPE GRAB GRAB QTRLY COMP QTRLY COMP OTRLY COMP 1WEEK COMP FREQ. JAIAPIJUIJOCT JNAP/JUL/OCT JNAPIJUIJOCT JNAPIJULIOCT JNAP/JUL/OCT JAJAPIJULIOCT 2

3 4

5 6

7 8

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

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 4.

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

3402003001 BEGINNING 06 / 11 / 01 ENDING 06 / 11/ 30 06 CA0003751 STATION EFFLUENTOOlD EFFLUENT 001H EFFLUENT 001L EFFLUENT 001F EFFLUENTE0ID EFFLUENT 001H EFFLUENT001L EFFLUENT0D1F ANALYSIS CHROMIUM TCHROMIUM TCHROMIUM TCRROMIUM COPPER COPPER COPPER COPPER UNITS ugv/ ug/1 ug /1 ugl1 ug/1 ugl1 ugh ug /1 SMPL TYPE QTRLY COMP QTRLY COMP QTRLYCOMP 1 WEEK COMP QTRLY COMP OTRLY COMP OTRLY COMP 1 WEEKCOMP FREQ. JNAPIJULIOCT JANAPIJUL/OCTJNAP/JUIJOCT JNAP/JULIOCT JNAPIJUIJOCT JNAP/JULJOCT JANAPIJULIOCT JANAPIJUIJOCT 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO ULMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT IMES EXCEEDED TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 5 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 11/ 01 ENDING 06 / 11 I 30 06 CA0003751 STATION EFFLUENT 001D EFFLUENT 001H EFFLUENT 001L EFFLUENT 001F EFFLUENT 001D EFFLUENT 001H EFFLUENT001L EFFLUENT 001F ANALYSIS LEAD LEAD LEAD LEAD MERCURY MERCURY MERCURY MERCURY UNITS ugh/ ugh1 ugl1 ug/1 ug/i ug/1 ugig1 ug9 SMPL TYPE OTRLY COMP OTRLYCOMP QTRLYCOMP 1WEEK COMP QTRLYCOMP OTRLY COMP QTRLYCOMP 1 WEEKCOMP FREQ. JA/AP/JUL/OCT JANAP/JUL/OCTJNAP/JUIJOCT JNAP/JUIJOCT JA/AP/JUL/OCT JANAP/JUUOCT JA/AP/JUL/OCT JANAP/JULIOCT 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO LIMIT NO LIMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 6 FACILITY ID. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06 / 11 1 01 ENDING 06 / 11 I 30 06 CA0003751 STATION EFFLUENT 001D EFFLUENT 001H EFFLUENT001L EFFLUENT 001F EFFLUENT 001D EFFLUENT 001H EFFLUENT 001L EFFLUENT 001F ANALYSIS NICKEL NICKEL NICKEL NICKEL SILVER SILVER SILVER SILVER UNITS ugi1 ug91 ug1 ugt1 ug/1 ug/1 ug/1 ug/1 SMPLTYPE OTRLY COMP OTRLYCOMP OTRLYCOMP 1 WEEK COMP OTRLYCOMP OTRLY COMP OTRLY COMP 1 WEEK COMP FREQ. JAIAP/JUL/OCTJNAP/JULIOCT JANAP/JULIOCTJA'APIJULIOCT JNAP/JUUOCT JNAP/JULIOCT JNAP/JULIOCT JA/AP/JU!JOCT 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (0) 7 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 11 I 01 ENDING 06 / 11 30 06 CA0003751 STATION EFFLUENT 001D- EFFLUENT 001H EFFLUENT 0OiL EFFLUENT 001F ANALYSIS ZINC ZINC ZINC ZINC UNITS ug/1 ug/1 ug/1 ug1 SMPLTYPE QTRLYCOMP QTRLYCOMP OTRLY COMP 1 WEEKCOMP FREQ. JA(AP/JULIOCTJNAP/JUUOCT JANAP/JUIJOCT JA/AP/JULUOCT 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO LIMIT NO LIMIT NO LIMIT NO LIMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 8 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06 / 11/ 01 ENDING 06 /11 / 30 06 CA0003751 STATION EFFLUENT 001D EFFLUENT 001F EFFLUENT 0011 EFFLUENT 001L EFFLUENT 001M ANALYSIS COPPER COPPER COPPER COPPER COPPER UNITS mg/1 mg/i mg/i mg/i mg/i SMPL TYPE 24-HR COMP. 24-HRCOMP. 24-HR COMP. 24-HR COMP. 24-HR COMP.

FREQ. METAL CLNG METAL CLNG METAL CLNG METAL CLNG METAL CLNG MONTHLY AVG NO NO NO NO NO MONTHLY HIGH DISCHARGE DISCHARGE DISCHARGE DISCHARGE DISCHARGE MONTHLY LOW TIMES EXCEEDED MOAVG 1 =0 MOAVG 1 =0 MOAVG 1 =0 MOAVG 1 =0 MOAVG 1 =0 TIMES EXCEEDED DMAX1 =0 DMAX1 =0 DMAX1 =0 DMAX1 =0 DMAX1 =0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 9 FACIUTY I.D. YEAR / MO/ DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 11 / 01 ENDING 06 / 11 I 30 06 CA0003751 STATION EFFLUENT001D EFFLUENT001F EFFLUENT 0011 EFFLUENT G01L EFFLUENT 001M ANALYSIS IRON IRON IRON IRON IRON UNITS mg/1 mg/i mg/l mg/ mag/1 SMPL TYPE 24-HRCOMP. 24-HRCOMP. 24-HR COMP. 24-HR COMP. 24-HR COMP.

FREQ. METAL CLNG METAL CLNG METAL CLNG METAL CLNG METAL CLNG 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG NO NO NO NO NO MONTHLY HIGH DISCHARGE DISCHARGE DISCHARGE DISCHARGE DISCHARGE MONTHLY LOW TIMESEXCEEDED MO AVG 1=0 MO AVG 1 = 0 MO AVG 1 =0 MO AVG 1= 0 MO AVG 1= 0 TIMESEXCEEDED DMAXI =0 DMAX1 =0 DMAX1 =0 DMAX1 =0 DMAX1 =0 TIMESEXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424, SAN LUIS OBISPO, CA 93401 PAGE: (A) 1 FACILITY I.D. YEAR / MO I DAY YEAR / MO / DAY STATE CODE NPDES PERMIT4#

3402003001 BEGINNING 06 /11/ 01 ENDING 06 /11/ 30 06 CA0003751 STATION EFFLUENT 001 INFLUENT EFFLUENT INFLUENT EFFLUENT 001 INFLUENT EFFLUENT 001 INFLUENT ANALYSIS TITANIUM ARSENIC ARSENIC CADMIUM CADMIUM LEAD LEAD ZINC 1

UNITS ug/ ug/1 ug/1 ugh ug1 ug1 ug1 ugt1 SMPLTYPE 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 ND(10) 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG ND(10)

MONTHLY HIGH ND(10)

MONTHLY LOW ND(10)

TIMES EXCEEDED NO UMIT NO UMIT 6M-MED 30 =0 NO UMIT 6M-MED 10 = 0 NO UMIT 6M-MED 10 = 0 NO UMIT TIMES EXCEEDED D MAX150 = 0 D MAX20 = 0 D MAX 40 = 0 TIMES EXCEEDED I MAX 400 = 0 I MAX50- 0 I MAX 100 =0 REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

INFLUENT ANALYSIS PERFORMED FOR COMPARISON TO EFFLUENTS.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION P0 BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 2 FACIUTY I.D. YEAR / MO / DAY YEAR I MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 I 111 01 ENDING 06 / 11 / 30 06 CA0003751 STATION INFLUENT EFFLUENT001 INFLUENT EFFLUENT001 INFLUENT EFFLUENT001 INFLUENT EFFLUENT001 ANALYSIS MERCURY MERCURY SILVER SILVER CYANIDE CYANIDE PHENOLIC CMP PHENOLICCMP UNITS ug/1 ug/1 ug1 ugli ugl1 uG1 ugh1(NONCL) ug/1(NONCL)

SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 1

2 3

4 5

6 7

8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO UMIT 6M-MED 0.2=0 NO UMIT 6M-MED 2.9=-0 NO UMIT 6M-MED 30=-0 NO UMIT 6M-MED 150=-0 TIMES EXCEEDED DMAX 0.8 = 0 DMAX 13.6=0 DMAX 100=-0 DMAX 610=-0 TIMES EXCEEDED [MAX2 =0 IMAX 35= 0 IMAX 260=-0 [MAX1530=-0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (A) 3 FACIUTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 11/ 01 ENDING 06 /11/ 30 06 CA0003751 STATION INFLUENT EFFLUENT 001 EFFLUENT001D EFFLUENT001D EFFLUENT001D EFFLUENTOO5 EFFLUENT008 ANALYSIS CHLOR PHENOL CHLOR PHENOL LITHIUM BORON HYDRAZINE OIL&GREASE OIL&GREASE UNITS ug/1 ug/1 mg/i mg/i mg/1 mg/i mgai SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 8

9 10 11 ND(5) 6 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG ND(5) 6 MONTHLY HIGH ND(5) 6 MONTHLY LOW ND(5) 6 TIMES EXCEEDED NO UMIT 6M-MED 10=-0 NO UMIT NO UMIT NO UMIT MO AVG 15=0 MO AVG 15=0 TIMES EXCEEDED DMAX 20=-0 DMAX 20=-0 DMAX 20=-0 TIMES EXCEEDED IMAX50=0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (A) 4 FACIUTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 11 / 01 ENDING 06 / 11 I 30 06 CA0003751 STATION EFFLUENT 009 EFFLUENT 013 EFFLUENT 015 EFFLUENT016 EFFLUENT 017 INFLUENT EFFLUENT001 ANALYSIS OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL

&GREASE PCB'S PCB'S UNITS mg/r mg/1 mg/I mg/ mag/ ugm ug/1 SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 8

9 10 11 ND(5) ND(5) 6 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG ND(5) ND(5) 6 MONTHLY HIGH ND(5) ND(5) 6 MONTHLY LOW ND(5) ND(5) 6 TIMES EXCEEDED MO AVG 15=0 MO AVG 15=0 MO AVG 15=0 MO AVG15=0 MO AVG 15=0 NO UMIT NO UMIT TIMESEXCEEDED DMAX 20=-0 DMAX 20=-0 DMAX 20=-0 DMAX 20=-0 DMAX20=0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUISOBISPO. CA 93401 PAGE: (A) 5 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 11 01 ENDING 06 / 11/ 30 06 CA0003751 STATION EFFLUENT 001N EFFLUENT 001N EFFLUENT001N EFFLUENT001N EFFLUENT001N EFFLUENT001N EFFLUENT001N EFFLUENT 001N ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS MOISTURE TOTKJLDL N AMMONIA IN) NITRATE (N) TOTPHOSPHS pH OIL&GREASE BORON SMPL TYPE % mg/kg mg/kg mg/kg mg/kg pHunits mg/kg mg/kg FREQ. GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED N LIMIT NO LIMIT NO LIMIT NO LIMIT NO UMIT NO UMIT NO LIMIT NO LIMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (A) 6 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 11/ 01 ENDING 06 / 11 / 30 06 CA0003751 STATION EFFLUENT 001N EFFLUENT001N EFFLUENT 001N EFFLUENT 001N EFFLUENT 001N EFFLUENT 001N EFFLUENT 001N EFFLUENT001N ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS CADMIUM COPPER CHROMIUM LEAD NICKEL MERCURY ZINC VOLUME SMPL TYPE mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg tonS FREQ. GRAB GRAB GRAB GRAB GRAB GRAB GRAB OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED 10xSTLC=0 1OxSTLC=O 1DxSTLC=0 10xSTLC=0 10xSTLC=0 1OxSTLC=O 10xSTLC=0 TIMES EXCEEDED 10 mg/kg=0 250 mg/kg=0 50 mg/kg=O 50 mg/kg=0 200 mg/kg=D 2 mg/kg=0 2500 mglkg=0 TIMES EXCEEDED TTLC>100=0 TTLC>2500=-0 TILC>500=0 TTLC>1000=-0 TTLC>2000=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 December 2006

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 1 FACIUTY I.D. YEAR I MO I DAY YEAR ! MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 12 1 01 ENDING 06 /12 / 31 06 CA0003751 STATION INFLUENT EFFLUENT 001 DELTATEMP EFFLUENT 001 INFLUENT EFFLUENT 001 EFFLUENT001P EFFLUENT 002 ANALYSIS TEMPERATURETEMPERATURETEMPERATURE FLOW pH pH pH pH UNITS DEGREES F DEGREES F DEGREES F MGD pHUNITS pHUNITS pHUNITS pHUNITS SMPL TYPE METERED METERED METERED RECORDED GRAB GRAB GRAB GRAB FREQ. CONTINUOUS CONTINUOUS CONTINUOUS DAILY MONTHLY MONTHLY I MONTHLY MONTHLY 1 54.2 72.7 18.5 2486 2 54.2 72.7 18.5 2486 3 . 54.7 73.3 18.6 2486 4 55.3 73.8 18.5 2486 5 55.6 73.9 18.3 2486 6 55.3 73.8 18.5 2486 2 7.8 2 8.1 7 55.5 74.2 18.7 2486 8 56.2 74.8 18.6 2486 8.0 8.0 9 57.1 75.8 18.7 2486 10 57.4 75.7 18.3 2278 11 58.3 71.3 13.0 1966 12 58.0 73.7 15.7 1732 13 57.4 71.5 14.1 1862 14 56.0 72.1 16.1 1862 15 55.2 74.2 19.0 1862 16 55.0 74.3 19.3 1862 17 54.9 74.3 19.4 1862 18 53.4 71.2 17.8 2070 19 54.6 72.9 18.3 2486 20 55.0 74.2 19.2 2486 21 54.9 73.9 19.0 2486 22 55.3 74.4 19.1 2486 23 55.0 74.1 19.1 2486 24 54.9 73.8 18.9 2486 25 55.9 74.8 18.9 2486 26 56.7 75.3 18.6 2486 27 56.9 75.2 18.3 2486 28 54.2 73.0 18.8 2486 29 55.0 74.0 19.0 2486 30 54.6 73.7 19.1 2486 31 54.5 73.5 19.0 2486 MONTHLY AVG 55.5 73.7 18.2 2324 8.0 8.0 7.8 8.1 MONTHLYHIGH 58.3 75.8 19.4 2486 8.0 8,0 7.8 8.1 MONTHLY LOW 53.4 71.2 13.0 1732 8.0 8.0 7.8 8.1 TIMES EXCEEDED NO UMIT NO UMIT MAX22 = 0 MAX2760 = 0 NO UMIT NO UMIT NO LIMIT NO LIMIT TIMES EXCEEDED (*)

TIMES 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 QUAUTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M) 2 FACIUTY ID. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 12 / 01 ENDING 06 / 12 31 06 CA0003751 STATION EFFLUENT 003 EFFLUENT 004 EFFLUENT 001N EFFLUENT 001P EFFLUENT 003 EFFLUENT 001F EFFLUENTO01 EFFLUENT 001 ANALYSIS pH pH OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE TCHLOR RES CHLORINE USED UNITS pHUNITS pHUNITS mgl mg/ mg/ mgfl ug Ibstday SMPL TYPE GRAB GRAB COMPOSITE GRAB GRAB GRAB GRAB ('*) RECORDED FREQ. MONTHLY MONTHLY WEEKLY WEEKLY (") WEEKLY (*) MONTHLY 2 per CYCLE MONTHLY 1 60 490 2 35 533 3 35 533 4 35 547 5 8.0 ND(5) 42 571 6 8.0 42 602 7 3 ND(S) 73 619 8 73 634 9 24 648 10 22 487 11 3 ND(5) 11 410 12 12 468 13 18 518 14 67 518 15 97 509 16 46 490 17 32 490 18 38 542 19 24 648 20 3 ND(5) 26 655 21 60 648 22 29 626 23 29 619 24 20 619 25 15 619 26 15 619 27 13 619 28 3 ND(5) 55 619 29 26 619 30 26 619 31 22 619 MONTHLY AVG 8.0 8.0 ND(5) NO NO ND(5) 36 573 MONTHLY HIGH 8.0 8.0 ND(5) DISCHARGE DISCHARGE ND(5) 97 655 MONTHLY LOW 8.0 8.0 ND(5) ND(5) 7 410 TIMES EXCEEDED NO UMIT NO UMIT MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 I MAX200=0 NO UMIT.

TIMES EXCEEDED D MAX 20 = 0 D MAX20 = 0 DMAX20 = 0 D MAX20 = 0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

WHEN 001N IS DISCHARGING TO 001P.

-WHEN 001P IS DISCHARGING TO 003.

- CONTINUOUS CHLORINE MONITORING USED It PRINCIPAL EXECUTIVE OFFICER I

JAMES R. BECKER

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M) 3 FACILITY I.D. YEAR / MO I DAY YEAR I MO I DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 12 / 01 ENDING 06 / 12 / 31 06 CA0003751 STATION EFF 001N=>003 EFF001N=E003 EFFLUENT 00lD EFFLUENT001F ANALYSIS TOTL COLIFORMFECAL COLIFORM SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS MPNIEOrnd MPNI10Oml mg/ 1st FLTR mg/i2nd FLTR mg/iNET mg/i1st FLTR mg/I2nd FLTR mg/iNET SMPLTYPE GRAB GRAB GRAB GRAB FREQ. 4 TIMESNWEEK4TIMES/WEEK MONTHLY MONTHLY 1 ND(5) 2 3

4 5 2 12 2 < 1 2 12 6 2 ND(5) 7 8 2 42 2 < 1 2 42 9

10 11 12 13 14 2 4 2 ND(5) 15 16 17 18 2 3 2 ND(5) 19 20 21 2 26 2 1 2 25 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG NO NO ** 5 12 MONTHLYHIGH DISCHARGE DISCHARGE 45 13 MONTHLY LOW ND(5) 12 TIMES EXCEEDED 80% SMPLS>1K MEAN>200= NO UMIT NO LIMIT MO AVG 30 = 0 NO UMIT NO LIMIT MO AVG 30 = 0 TiMES EXCEEDED 90 % SMPLS>400 DMAX 100 = 0 DMAX 100 = 0 TIMES EXCEEDED I MAX>10K REMARKS: *NUMBER OF SAMPLES TAKEN DURING THE DAY.

- FLOW-WEIGHTED AVERAGES REPORTED.

CAUFORNIA REGIONAL WATER QUAULTY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M) 4 FACIUTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 12 / 01 ENDING 06 / 12 1 31 06 CA0003751 STATION EFFLUENT001G EFFLUENT 001H ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mrg/i1st FLTR mg/i2nd FLTR mg/1 NET mg/1 1st FLTR mg/I2nd FLTR mg/1 NET SMPLTYPE GRAB GRAB FREQ. MONTHLY MONTHLY 2

3 4

5 < 1 ND(5) 6 7

8 9

10 11 12 13 14 15 16 17 18 1 < 1 ND(5) 19 20 21 22 23 24 25 26 27 28 29 3D 31 MONTHLY AVG ND(5) ND(5)

MONTHLY HIGH ND(5) ND(5)

MONTHLY LOW ND(5) ND(S)

TIMES EXCEEDED NO UMIT NO LIMIT MO AVG 30=0 NO UMIT NO LIMIT MO AVG 30=0 TIMES EXCEEDED D MAX 100= 0 D MAX 100= 0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 5 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 12 / 01 ENDING 06 /12 / 31 06 CA0003751 STATION EFFUENT 0011 EFFLUENT 001J ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mg/i 1st FLTR mg/i2nd FLTR mg/iNET mg/1 1st FLTR mgo/

2nd FLTR mg/1NET SMPL TYPE GRAB GRAB FREQ. MONTHLY MONTHLY 2

3 4

5 6

7 8

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

MONTHLY HIGH DISCHARGE ND(5)

MONTHLY LOW ND(5)

TIMES EXCEEDED NO LIMIT NO LIMIT MO AVG 30 = 0 NO LIMIT NO LIMIT MO AVG 30 = 0 TIMES EXCEEDED MAX 100 = 0 MAX100 = 0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M) 6 FACIUTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06 / 12 I 01 ENDING 06 /12 I 31 06 CA0003751 STATION EFFLUENT001K EFFLUENT 001L ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mg/i1st FLTR mg/i2nd FLTR mg/iNET mg/i1st FLTR mg/i2nd FLTR mg/iNET SMPL TYPE GRAB GRAB FREQ. MONTHLY MONTHLY 2

3 4

5 2< 1 2 ND(5) 6 7

8 9

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

MONTHLY HIGH DISCHARGE ND(5)

MONTHLY LOW ND(5)

TIMES EXCEEDED NO UMIT NO UMIT MO AVG 30 = 0 NO UMIT NO UMIT MO AVG 30 = 0 TIMESEXCEEDED DMAX 100 = 0 D MAX100 = 0 TIMESEXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUAUITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 7 FACIULTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 12 / 01 ENDING 06 / 12 / 31 06 CA0003751 STATION EFFLUENT 001M EFFLUENT 001N EFFLUENT 001P ANALYSIS SUSPENDED SOLIDS SUSPENDED SLDS SUSPENDED SOLIDS UNITS mg/i1st FLTR nrgl 2nd FLTR mg/iNET mg/i mg/i1st FLTR mg/i2nd FLTR mg/iNET SMPL TYPE GRAB COMPOSITE GRAB FREQ. MONTHLY WEEKLY MONTHLY 2

3 4

5 6 1 1 ND(5) 7 17 8

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

MONTHLY HIGH DISCHARGE 20 ND(5)

MONTHLY LOW 15 ND(5)

TIMESEXCEEDED NO UMIT NO LIMIT MO AVG 30 = 0 MO AVG 60 = 0 NO UMIT NO UMIT MO AVG 30 = 0 TIMESEXCEEDED DMAX 100 = 0 D MAX 100 = 0 TIMESEXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 8 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 /12 / 01 ENDING 06 / 12 / 31 06 CA0003751 STATION EFFLUENT 002 EFFLUENT 003 ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mg/i1 st FLTR mg/i2nd FLTR mg/iNET mg/i1st FLTR mg/i2nd FLTR mg/1 NET SMPL TYPE GRAB GRAB FREQ. MONTHLY MONTHLY 1

2 3

4 5

6 2 2 2 1 2 ND(5) 2 5 2 < 1 2 ND(5) 7 8

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

MONTHLY HIGH ND(5) ND(5)

MONTHLY LOW ND(5) ND(5)

TIMES EXCEEDED NO UMIT NO UMIT MO AVG 30 = 0 NO UMIT NO UMIT MO AVG 30 = 0 TIMES EXCEEDED DMAX 100 = 0 D MAX 100 = 0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (M) 9 FACIUTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

7 3402003001 BEGINNING 06 / 12 / 01 ENDING 06 / 12 / 31 06 CA0003 51 STATION EFFLUENT 003 EFFLUENT 001N EFFLUENT001 EFFLUENT 001 EFFLUENT 001 EFFLUENT 001 ANALYSIS SUSPENDED SOLIDS SET'rL SOLIDS TCHROMIUM COPPER NICKEL ZINC UNITS mrg/1st FLTR mg/1 2nd FLTR mg/1NET mil ugh ug/1 ugfl ugvl SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB FREQ. WEEKLYWHEN 001N&001P-- 003 WEEKLY MONTHLY MONTHLY MONTHLY MONTHLY 2

3 4

5 6

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

MONTHLYHIGH DISCHARGE ND(O.1) ND(10) ND(10) ND(10) ND(10)

MONTHLY LOW ND(0.1) ND(10) ND(10) ND(10) ND(10)

TIMES EXCEEDED NO UMIT NO UMIT MO AVG 30 = 0 MO AVG 1.0 = 0 6M-MED 10=0 6M-MED 10 =0 6M-MED 30 =0 6M-MED 70=-0 TIMES EXCEEDED DMAX100 = 0 DMAX3.0 = 0 DMAX40 = 0 DMAX50 = 0 DMAX100 = 0 DMAX380 = 0 TIMES EXCEEDED I MAX 100 = 0 I MAX 140 = 0 I MAX260 = 0 I MAX 990 = 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 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 1 FACIULTYI.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 /12 / 01 ENDING 061 12 / 31 06 CA0003751 STATION INFLUENT INFLUENT INFLUENT INFLUENT EFFLUENT 001 EFFLUENT 001D EFFLUENT001G EFFLUENT001H ANALYSIS TCHROMIUM COPPER NICKEL AMMONIA (N) AMMONIA (N) OIL

&GREASE OIL&GREASE OIL&GREASE UNITS ug/1 ug/1 ug/1 ugh1 ug/1 mg/I mg/ir mg/

SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. JNAP/JUL/OCT JNAP/JUUIOCT JANAP/JUU/OCTJAIAP/JULIOCT JA/AP/JUUOCT JANAP JUU/OCT JAIAP/JUU/OCT JANAP/JUL/OCT 2

3 4

5 6

7 8 ND(10) ND(10) ND(10) ND(5) 9 10 11 12 13 14 15 16 17 18 19 20 21 ND(5) 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG ND(1O) ND(10) ND(Ol) ND(5)

MONTHLY HIGH ND(10) ND(10) ND(10) ND(5)

MONTHLYLOW ND(10) ND(10) ND(10) ND(5)

TIMES EXCEEDED NO UMIT NO UMIT NO UMIT NO LIMIT 6M-MED 3060 = 0 MO AVG 15 = 0 MO AVG 15 = 0 MO AVG 15 = 0 TIMES EXCEEDED DMAX12240 = 0 DMAX20 = 0 DMAX20 = 0 DMAX20 = 0 TIMES EXCEEDED IMAX 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 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 2 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 1 12 1 01 ENDING 06 / 12 I 31 06 CA0003751 STATION EFFLUENT 0011 EFFLUENT 001J EFFLUENT 001K EFFLUENT 001L EFFLUENT 001M EFFLUENT 001P EFFLUENT 002 EFFLUENT 003 ANALYSIS OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE UNITS mg/i mg/i mg/i mg/i mg/l mg/i mg/1 mg/i SMPLTYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREO. JNAPIJULJOCT JNAP/JUL/OCT JNAP/JULIOCT JA/AP/JUL/OCT JA/AP/JUL/OCT JNAP/JUL/OCT JNAP/JUL/OCT JANAP/JUL/OCT 2

3 4

5 6

7 8

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

MONTHLY HIGH ND(5)

MONTHLY LOW ND(5)

TIMESEXCEEDED MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 TIMESEXCEEDED DMAX20 0= DMAX20 = 0 DMAX20 = 0 DMAX20 = 0 DMAX20 = 0 DMAX20 = 0 DMAX20 = 0 DMAX20 = 0 TIMESEXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION P0 BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUISOBISPO. CA 93401 PAGE: (0) 3 FACIUTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 12 1 01 ENDING 06 / 12 / 31 06 CA0003751 STATION EFFLUENT 0O4 EFFLUENT 001 EFFLUENTO01D EFFLUENT O01H EFFLUENT OOlL EFFLUENT O01F ANALYSIS OIL&GREASE TOXCONCEN CADMIUM CADMIUM CADMIUM CADMIUM UNITS ra!! TU ugtl ug/ 1 ug /1 ug/ 1 SMPL TYPE GRAB GRAB QTRLY COMP QTRLYCOMP OTRLYCOMP 1 WEEK COMP FRED. JAIAP/JU.JOCT JNAP/JULJOCT JNAPIJUUOCT JNAP/JULIJOCT JAIAP/JUUOCT JAIAP/JUIJOCT 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21

'22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMESEXCEEDED MO AVG 15 =0 NO UMIT NO UMIT NO UMIT NO UMIT TIMES EXCEEDED DMAX 20 = 0 TIMES EXCEEDED 6M-MED 0.26=0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (0) 4 FACILITY I.D, YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 /12 / 01 ENDING 06 / 12 I 31 06 CA0003751 STATION EFFLUENT 001D EFFLUENT 001H EFFLUENT 001L EFFLUENT 001F EFFLUENT 001D EFFLUENT 001H EFFLUENT 001L EFFLUENT001F ANALYSIS CHROMIUM TCHROMIUM TCHROMIUM TCHROMIUM COPPER COPPER COPPER COPPER UNITS ug/1 ug/1 ug/1 ugi1 ug/1 ug/1 ughi ugl1 SMPL TYPE QTRLY COMP QTRLY COMP QTRLY COMP 1 WEEK COMP QTRLYCOMP OTRLY COMP QTRLY COMP 1 WEEK COMP FREQ. JANAP/JULIOCT JNAP/JUL/OCT JANAP/JUL/OCT JA/AP/JUL/OCT JANAP/JUL/OCT JAIAP/JULIOCT JANAP/JUIJOCT JANAP/JUL/OCT 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT IMESEXCEEDED TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 5 FACILITY I.D. YEAR i MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 12 / 01 ENDING 06 / 12 /31 06 CA0003751 STATION EFFLUENT 001D EFFLUENT001H EFFLUENT 001L EFFLUENT 001F EFFLUENT 001D EFFLUENT 001H EFFLUENT 0D1L EFFLUENT 001F ANALYSIS LEAD LEAD LEAD LEAD MERCURY MERCURY MERCURY MERCURY UNITS ug/1 ug/1 ugi1 ughi ugh ug/1 ughi ugt1 SMPL TYPE QTRLY COMP OTRLYCOMP QTRLYCOMP 1 WEEKCOMP OTRLY COMP QTRLY COMP OTRLYCOMP I WEEK COMP FREQ. JNAP/JUL/OCT JA/APIJUL/OCTJNAP/JULIOCT JANAP/JUL/OCT JAIAP/JUL/OCT JANAP/JUIJOCT JNAP/JULIOCT JANAP/JUL/OCT 2

3 4

5 6

7 8

9 10

'11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMESEXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT TIMESEXCEEDED TIMESEXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUAUITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 6 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3 402003001 BEGINNING 06 / 12 / 01 ENDING 06 / 12 1 31 06 CA0003751 STATION EFFLUENT001D EFFLUENT001H EFFLUENT 001L EFFLUENT 001F EFFLUENT 001D EFFLUENT001H EFFLUENT 001L EFFLUENT001F ANALYSIS NICKEL NICKEL NICKEL NICKEL SILVER SILVER SILVER SILVER 1 1 UNITS ug1 ug/1 ug/11 ug/1 ug uglh ugil ugh SMPL TYPE OTRLY COMP OTRLY COMP QTRLY COMP 1WEEK COMP OTRLYCOMP QTRLY COMP QTRLY COMP 1 WEEK COMP FREQ. JNAPIJULIOCT JNAPIJUL/OCT JNAPIJUIJOCT JANAP/JUlJOCT JNAP/JUIJOCT JANAP/JULIOCT JAIAP/JUL/OCT JANAP/JULJOCT 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMESEXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT TIMESEXCEEDED TIMESEXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION P0 BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 7 FACIUTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 12 / 01 ENDING 06 / 12 / 31 06 CA0003751 STATION EFFLUENT 001D EFFLUENT 001H EFFLUENT 001L EFFLUENT 001F ANALYSIS ZINC ZINC ZINC ZINC UNITS ug/1 ugh1 ug/1 ug/1 SMPLTYPE QTRLY COMP QTRLY COMP QTRLYCOMP 1 WEEK COMP FREQO JNAP/JUIJOCT JNAPIJUL/OCT JANAPIJULIOCTJAAP/JUL/OCT 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMESEXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT TIMESEXCEEDED 1IMESEXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 8 FACILITY I.D. YEAR / MO / DAY YEAR I MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 12 / 01 ENDING 06 / 12 / 31 06 CA0003751 STATION EFFLUENT 001D EFFLUENT 001F EFFLUENT 0011 EFFLUENT 001L EFFLUENT001M ANALYSIS COPPER COPPER COPPER COPPER COPPER UNITS mg/1 mg/i mg/l mg/i mg/i SMPL TYPE 24-HR COMP. 24-HR COMP. 24-HR COMP. 24-HRCOMP. 24-HR COMP.

FREQ. METAL CLNG METALCLNG METAL OLNG METAL CLNG METAL CLNG MONTHLY AVG NO NO NO NO NO MONTHLY HIGH DISCHARGE DISCHARGE DISCHARGE DISCHARGE DISCHARGE MONTHLY LOW TIMESEXCEEDED MOAVG I=0 MOAVG 1=0 MOAVG 1=0 MOAVG 1=0 MOAVG 1=0 TIMESEXCEEDED DMAXI =0 DMAX1 =0 DMAXl =0 DMAX1 =0 DMAX1 =0 TIMESEXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

'AUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

'ONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT

.ENTRAL COAST REGION PO BOX 56 395 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 3AN LUIS OBISPO, CA 93401 PAGE: (Q) 9 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06 / 12 / 01 ENDING 06 /12 / 31 06 CA0003751 STATION EFFLUENT001D EFFLUENTOIF EFFLUENT0011 EFFLUENT 001L EFFLUENT001M ANALYSIS IRON IRON IRON IRON IRON UNITS mg/i mg/r mg/i mg/i mg/1 SMPLTYPE 24-HR COMP. 24-HR COMP. 24-HRCOMP. 24-HRCOMP. 24-HR COMP.

FREQ. METAL CLNG METAL CLNG METALCLNG METAL CLNG METAL CLNG

4~ ~

4-4-I-..

4~* - I UIONTHLY AVG NO NO NO NO NO lONTHLY HIGH DISCHARGE DISCHARGE DISCHARGE DISCHARGE DISCHARGE AONTHLY LOW RMES EXCEEDED MOAVG 1=0 MOAVG 1=0 MOAVG 1=0 MOAVG 1=0 MOAVG 1=0 rtMESEXCEEDED DMAX1 =0 DMAX1 =0 DMAXl =0 DMAX1 =0 DMAX1 =0 RIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUALITY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (A) 1 FACILITY ID. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 /12 / 01 ENDING 06 /12 I 31 06 CA0003751 STATION EFFLUENT 001 INFLUENT EFFLUENT INFLUENT EFFLUENT001 INFLUENT EFFLUENT 001 INFLUENT ANALYSIS TITANIUM ARSENIC ARSENIC CADMIUM CADMIUM LEAD LEAD ZINC UNITS ug/1 ug/1 ug/1 ug/1 ug/1 ug/h ugf1 ug/1 SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 8 ND(10) 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG ND(10)

MONTHLY HIGH ND(10)

MONTHLY LOW ND(10)

TIMES EXCEEDED NO LIMIT NO LIMIT 6M-MED 30 = 0 NO LIMIT 6M-MED 10 = 0 NO LIMIT 6M-MED 10 0 NO LIMIT TIMES EXCEEDED D MAX 150 = 0 DMAX20 = 0 DMAX40 = 0 TIMES EXCEEDED I MAX 400 = 0 I MAX 50 - 0 I MAX 100 =0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

INFLUENT ANALYSIS PERFORMED FOR COMPARISON TO EFFLUENTS.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 2 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 12 / 01 ENDING 06 /12 / 31 06 CA0003751 STATION INFLUENT EFFLUENT 001 INFLUENT EFFLUENT001 INFLUENT EFFLUENT 001 INFLUENT EFFLUENT001 ANALYSIS MERCURY MERCURY SILVER SILVER CYANIDE CYANIDE PHENOLIC CMP PHENOLICCMP 1

UNITS ug/1 ug/ ug/l ug/1 ug/l ugh1 ughi(NONCL) ugt1(NONCL)

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

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 20 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TiMESEXCEEDED 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 TiMESEXCEEDED DMAX 0.8 = 0 DMAX 13.6=0 DMAX 100=-0 DMAX 610=-0 TIMESEXCEEDED IMAX2=0 IMAX35= 0 IMAX260=0 IMAX1530=-0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (A) 3 FACIUTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06 / 12 / 01 ENDING 06 / 12 I 31 06 CA0003751 STATION INFLUENT EFFLUENT 001 EFFLUENT001D EFFLUENT001D EFFLUENT001D EFFLUENT005 EFFLUENT 008 ANALYSIS CHLOR PHENOL CHLOR PHENOL LITHIUM BORON HYDRAZINE OIL&GREASE OIL&GREASE UNITS ugh ug/1 mg/i mg/i mg/i mg/i mg/i SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO UMIT 6M-MED 10=0 NO UMIT NO UMIT NO UMIT MO AVG 15=0 MO AVG 15=0 TIMES EXCEEDED DMAX 20=-0 DMAX 20=-0 DMAX 20=-0 TIMES EXCEEDED IMAX50=0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE-101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (A) 4 FACIUTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 12 / 01 ENDING 06 / 12 / 31 06 CA0003751 STATION EFFLUENTO09 EFFLUENT013 EFFLUENT015 EFFLUENT 016 EFFLUENT017 INFLUENT EFFLUENT 001 ANALYSIS OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE OIL&GREASE PCB'S PCB'S UNITS mg/ mg/ir mg/i mg/i mg/i ug/1 ug/i SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ. OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 1

2 3

4 5

6 7

8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED MO AVG 15=0 MO AVG 15=0 MO AVG 15=0 MO AVG 15=0 MO AVG 15=0 NO UMIT NO UMIT TIMES EXCEEDED DMAX 20=-0 DMAX 20=-0 DMAX 20=-0 DMAX 20=0 DMAX20=0 TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 5 FACILITY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 06 / 12 / 01 ENDING 06 /12 / 31 06 CA0003751 STATION EFFLUENT001N EFFLUENT 001N EFFLUENT 001N EFFLUENT001N EFFLUENT001N EFFLUENT 001N EFFLUENT001N EFFLUENT001N ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS MOISTURE TOT KJLDL N AMMONIA (N) NITRATE (N) TOTPHOSPHS pH OIL&GREASE BORON SMPL TYPE % mg/kg mg/kg mg/kg mg/kg pHunits mg/kg mg/kg FREQ. 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 11 12 13 14 15 16.

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO ULMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (A) 6 FACIUTY I.D. YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 06 / 12 1 01 ENDING 06 / 12 I 31 06 CA0003751 STATION EFFLUENT001N EFFLUENTOlN EFFLUENT 001N EFFLUENT001N EFFLUENT001N EFFLUENT001N EFFLUENT001N EFFLUENT 001N ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS CADMIUM COPPER CHROMIUM LEAD NICKEL MERCURY ZINC VOLUME SMPL TYPE mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg tons FREQ. GRAB GRAB GRAB GRAB GRAB GRAB GRAB OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED 10xSTLC--0 lOxSTLC=0 10xSTLC=o 10xSTLC=O 1OxSTLC=0 10xSTLC=0 1OxSTLC=0 TMES EXCEEDED 10 mgtkg=0 250 mglkg=O 50 mglkg=0 50 mg/kg:0 200 mg/kg=0 2 mg/kg=O 2500 mg/kg=0 TIMES EXCEEDED TTLC>100=0 TTLC>2500-0 TTLC>500=0 TTLC>1000-O 1T-LC>2000=0 TTLC>20=0 TTLC>5000=-0 REMARKS: NUMBER OF SAMPLES TAKEN DURING THE DAY.

APPENDIX 5 DIABLO CANYON POWER PLANT Acute Bioassay November 8-12, 2006

,QUATIC IOASSAY & M ENV. OPS.

RECEIVED ONSULTING LABORATORIES, INC.

TOXICITY TESTING

OCEANOGRAPHIC RESEARCH November 30, 2006 Ms. Vicki Ziegler FGL Environmental P.O. Box 272 Santa Paula, CA 93061

Dear Ms. Ziegler:

We are pleased to present the enclosed bioassay report. The test was conducted under guidelines prescribed in Guidelines for Performing Static Acute Fish Bioassays in Municipal and Industrial Waste Waters as provided to us by Frederic R. Kopperdahl, Fish and Wildlife Water Pollution Control Laboratory, Department of Fish and Game.

Results were as follows:

CLIENT: PG&E Diablo Canyon SAMPLE I.D.: PG&E Diablo Canyon - DCPP Discharge 001 DATE RECEIVED: 8 Nov- 06 ABC LAB. NO.: FGL1 106.062 ACUTE ABALONE SURVIVAL BIOASSAY LC50 100 % Survival in 100 % Sample TUa 0.00 Yours very truly, Thomas )Mikel Laboratory Director 29 NORTH OLIVE STREET, VENTURA, CA 93001 * (805) 643-5621

-96 Hr Survival Start Date: 11/8/2006 Test ID: FGL1106062 Sample ID: CAOOOOOOO End Date: 11/12/2006 Lab ID: CAABC Sample Type: EFF3-Power Plant Sample Date: 11/8/2006 Protocol: KOP 76-Kopperdahl Test Species: HR-Haliotis rufescens Comments: DCPP Discharge 001 (611525)

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

Point % SD 95% CL(Exp) Skew IC05 >100 IC10 >100 IC15 >100 1.0 IC20 >100 0.9 IC25 >100 IC40 >100 0.8 IC50 >100 0.7 0.6 C

oC (00 0.5 a) 0.4 0.3 0.2 0.1 0.0 0 50 100 150 Dose %

Page 1 ToxCalc v5.0.23 Reviewed by: ___

-96 Hr Survival Start Date: 11/8/2006 Test ID: FGL1106062 Sample ID: CAQOOQOOD End Date: 11/12/2006 Lab ID: CAABC Sample Type: EFF3-Power Plant Sample Date: 11/8/2006 Protocol: KOP 76-Kopperdahl Test Species: HR-Haliotis rufescens Comments: . DCPP Discharge 001 (611525)

Dose-Response Plot 0.9 0.8-0.7 0.6 0.5

0.4 CD 0.3 0.2.

0.1 0

00 0

0 z

Page 2 ToxCalc v5.0.23 Reviewed by: 1>1

-96 Hr Survival Start Date: 11/8/2006 Test ID: FGL1106062 Sample ID: CA0000000 End Date: 11/12/2006 Lab ID: CAABC Sample Type: EFF3-Power Plant Sample Date: 111/8/2006 Protocol: KOP 76-Kopperdahl Test Species: HR-Haliotis rufescens Comments: DCPP Discharge 001 (611525)

Auxiliary Data Summary Conc-% Parameter Mean Min Max SD CV% N N Control Temp C 15.28 15.00 15.80 0.32 3.72 10 100 15.21 15.00 15.50 0.23 3.17 10 N Control pH 7.90 7.90 7.90 0.00 0.00 10 100 7.87 7.80 7.90 0.05 2.79 10 N Control DO mg/L 7.53 7.00 7.70 0.26 6.81 10 100 7.48 6.50 7.80 0.52 9.68 10 N Control Salinity ppt 34.00 34.00 34.00 0.00 0.00 10 100 34.00 34.00 34.00 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:_____

9 Subcontract Chain of Custody REPORT INFORMATION:

Rush Analysis: El 5 days E 4 days 0l 3 days 0l 2 days E 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months Electronic Data Transfer: YES / NO If yes, To: State. Client Other REMARKS:

0 o

0 0 C/)

0

0. V-

. ' 0 0 E

SAMPLING: R U .0 4-(U 0 0 +;0 Z Sampler~s) 0 ow 0 0

0 0

C1 0~.

FFF v) ý Ln 0-z 20 U 0 0~-,

V2 0 .0 0 L)CZ.*'

0 0~

4j.

Sample Location/Description Date Time 0~

Number Sampled Sampled 0i pcOe D)s4~cCO(e11mVkjiLv V o2-"Il (. 2 LJ __ __ ___

-C -D S- -0 - -o a0- -- - -- -

0- PP 1-1 CUSTODY:

Relinquished by: Date: II . 1 Time: /.e Relinquished by: Date: Time:

Received by: V h - Date: Time: 13 t Received by: Date: Time:

LPIVII*UNNPIPIAL AND ANALYSIS REQUESTDOCUMENT ORIGINAL CLINTDrTILSSCTO R O I '

II Client: W614 11 New Customer TDcJa C2o SAy.'UCf16%Aj.

Customer Number:

1I Sampler Cs): 1 Rush Analysis (surcharge will apply):

U 5 Day 2 Day L[ 4 Day Q 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months Ll 3 Day Address: P. . &oPA .r4 8

B3 CJ." 0...93 Va2Y3 Comp Sampler Set up Date:

Time:O n Rush pre-approval by lab: _____

jnira~l ,

Electronic Data Transfer: yes - -no Phone: apr) 5'Y5--3Ak Time: )AL2 Mileage:

If yes, To: State. Client __ Other 11'roor) .51VIC-364'r PAY-I Shipping Charge: - Pickup.Charge: Lab number.: -A D "

JREMARkS SECTION V I CUTD SETONV s ý2_'-*! I I

outtibos on tie reverse at tots document, Date S Stet ntby to the teomsattt eusat

.. In "ýQ'.m 3Q: Relinquished by: -Date - Time Received by: Date- m Received by: __ Date - Time Relinquished by:j I OaTme___

Date __ Time _ Relinquished by: Date - Time U,

Received by: 1 ,i /I Date a Time Received by: Date rTime FIELD CORPORATE OFFICE & LABORATORY OFFICE & LABORATORY FIELD OFFICE Visulia, P.O. Box 272/853 Corporation Street 1/j 2500 Stagecoach Road Visalia, California Tel:

Santa Paula. CA 93061-0272 Stockton. CA 95215 Tel: (559) 734-9473 Mobile:

Tel: (805) 392-2000 Tel: (209) 942-0181 Mobile: (559) 737-2399 FAX FAX: (805) 525-4172 FAX: (209) 942-0423 FAX (559) 734-8435

APPENDIX 6 DIABLO CANYON POWER PLANT Chronic Bioassay November 8-10, 2006

E [V E 1)

QUATIC ~~ . £L~L iQASSAY & VENPS ONSULTING LABORATORIES, INC.

TOXICITY TESTING

OCEANOGRAPHIC RESEARCH November 30, 2006 Ms. Vicki Ziegler FGL Environmental P.O. Box 272 Santa Paula, CA 93060

Dear Ms. Ziegler:

We are pleased to present the enclosed bioassay report. The test was conducted under guidelines prescribed in Short-Term Methods for Measuring the Chronic Toxicity of Effluents and Receiving Waters to West Coast Marine and Estuarine Organisms,EPA-R-95/136. Results were as follows:

CLIENT: PGE Diablo Canyon SAMPLE I.D.: PGE Diablo Canyon - DCPP Discharge 001 DATE RECEIVED: 8 Nov - 06 ABC LAB. NO.: FGL1 106.063 CHRONIC ABALONE LARVAL DEVELOPMENT BIOASSAY NOEC = 100.00 %

TUc = 1.00 IC25 = >100.00 %

IC50 = >100.00 %

Yours very truly,

'Thomas ie Laboratory Director 29 NORTH OLIVE STREET, VENTURA, CA 93001 * (805) 643-5621

Abalone Larval Development Test-Proportion Normal Start Date: 11/8/2006 Test ID: FGL1 106063 Sample ID: CAOOQODO0 End Date: 11/10/2006 Lab ID: CAABC Sample Type: EFF1-POTW Sample Date: 11/8/2006 Protocol: MBP 90-Anderson et al. Test Species: HR-Haliotis rufescens Comments: DCPP Discharge 001 (611525)

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 Treatments vs N Control Linear Interpolation (200 Resamples)

Point % SD 95% CL(Exp) Skew IC05 >100 IC10 >100 IC1 5 >100 1.0 IC20 >100 0.9 IC25 >100 IC40 >100 0.8 IC50 >100 0.7 4)0.6 O0.5 0.4 0.3 0.2 0.1

{} (1.

] . .

q 50 100 150 Dose %

Page 1 ToxCalc v5.0.23 Reviewed by: L

Abalone Larval Development Test-Proportion Normal Start Date: 11/812006 Test ID: FGL1106063 Sample ID: CA0000000 End Date: 11/10/2006 Lab ID: CAABC Sample Type: EFF1-POTW Sample Date: 11/8/2006 Protocol: MBP 90-Anderson et al. Test Species: HR-Haliotis rufescens Comments: DCPP Discharge 001 (611525)

Dose-Response Plot 0.9 0.8

=0.71 00.6 z .

0.5 o 0.4 0.

L&0.

0.2 0.1 0-

"6

.., 0 CO U')0 0

z Page 2 ToxCalc v5.0.23 Reviewed by: 6)

Abalone Larval Development Test-Proportion Normal Start Date: 11/8/2006 Test ID: FGL1 106063 Sample ID: CAOOQOQO0 End Date: 11/10/2006 Lab ID: CAABC Sample Type: EFF1-POTW Sample Date: 11/8/2006 Proto)col: MBP 90-Anderson et al. Test Species: HR-Haliotis rufescens Comments: DCPP Discharae 001 (6311525)

Auxiliary Data Summary Conc-% Parameter Mean Min Max SD CV% N N Control Temp C 15.10 15.10 15.10 0.00 0.00 10 15.10 15.10 15.10 0.00 0.00 18 15.10 15.10 15.10 0.00 0.00 32 15.10 15.10 15.10 0.00 0.00 56 15.10 15.10 15.10 0.00 0.00 100 15.10 15.10 15.10 0.00 0.00 N Control pH 6.55 5.40 7.70 1.63 19.47 10 6.35 5.50 7.20 1.20 17.27 18 6.35 5.40 7.30 1.34 18.25 32 6.15 5.00 7.30 1.63 20.74 56 6.15 5.00 7.30 1.63 20.74 100 5.55 4.40 6.70 1.63 22.98 N Control DO mg/L 7.50 7.50 7.50 0.00 0.00 10 7.50 7.50 7.50 0.00 0.00 18 7.55 7.50 7.60 0.07 3.52 32 7.55 7.50 7.60 0.07 3.52 56 7.55 7.50 7.60 0.07 3.52 100 7.55 7.50 7.60 0.07 3.52 N Control Salinity ppt 34.00 34.00 34.00 0.00 0.00 10 34.00 34.00 34.00 0.00 0.00 18 34.00 34.00 34.00 0.00 0.00 32 34.00 34.00 34.00 0.00 0.00 56 34.00 34.00 34.00 0.00 0.00 100 34.00 34.00 34.00 0.00 0.00 Page 3 ToxCalc v5.0.23 Reviewed by:._A_

'U.A-A'QUATIC

'1 IOASSAY&

C CONSULTING LABORATORIES, INC.

TOXICITY TESTING

OCEANOGRAPHIC RESEARCH CHRONIC ABALONE DEVELOPMENT BIOASSAY DATE: 8 November- 06 STANDARD TOXICANT: Zinc NOEC 56.00 ug/l IC25 = 49.14 ug/l IC50 = 66.15 ug/l Yours very truly, Thomas (Tim) Mikel Laboratory Director 29 NORTH OLIVE STREET, VENTURA, CA 93001 o (805) 643-5621

Abalone Larval Development Test-Proportion Normal Start Date: 11/8/2006 Test ID: ABS110806 Sample ID: REF -Ref Toxicant End Date: 11/10/2006 Lab ID: ABC LABS Sample Type: ZNE O-Zinc sulfate Sample Date: 11/8/2006 Protocol: MBP 90-Anderson et al. Test Species: HR- Haliotis rufescens Comments: Standard Toxicant Conc-uglL 1 2 3 4 5 Control 1.0000 1.0000 1.0000 1.0000 1.0000 18 1.0000 1.0000 1.0000 1.0000 1.0000 32 1.0000 1.0000 1.0000 1.0000 1.0000 56 0.0000 1.0000 0.2500 1.0000 1.0000 100 0.0000 0.0000 0.0000 0.0000 0.0000 180 0.0000 0.0000 0.0000 0.0000 0.0000 Transform: Arcsin Square Root Rank 1-Tailed Isotonic Conc-ug/L Mean N-Mean Mean Min Max CV% N Sum Critical Mean N-Mean Control 1.0000 1.0000 1.5208 1.5208 1.5208 0.000 5 1.0000 1.0000 18 1.0000 1.0000 1.5208 1.5208 1.5208 0.000 5 27.50 17.00 1.0000 1.0000 32 1.0000 1.0000 1.5208 1.5208 1.5208 0.000 5 27.50 17.00 1.0000 1.0000 56 0.6500 0.6500 1.0272 0.0500 1.5208 67.787 5 22.50 17.00 0.6500 0.6500 100 0.0000 0.0000 0.0500 0.0500 0.0500 0.000 5 0.0000 0.0000 180 0.0000 0.0000 0.0500 0.0500 0.0500 0.000 5 0.0000 0.0000 Auxiliary Tests Statistic Critical Skew Kurt Shapiro-Wilk's Test indicates non-normal distribution (p <= 0.01) 0.67372 0.868 -1.2553 4.46331 Equality of variance cannot be confirmed Hypothesis Test (1-tail, 0.05) NOEC LOEC ChV TU Steel's Many-One Rank Test 56 100 74.8331 Treatments vs Control Linear Interpolation (200 Resamples)

Point uglL SD 95% CL(Exp) Skew IC05 35.429 6.820 32.686 69.586 2.3777 IC10 38.857 7.192 33.371 71.171 1.5075 IC15 42.286 8.089 34.057 72.757 0.8481 1.0-IC20 45.714 8.404 34.743 74.343 0.5455 IC25 49.143 8.466 35.429 75.929 0.3908 IC40 59.385 8.867 37.508 80.708 -0.0552 0.8 IC50 66.154 9.212 38.923 83.923 -0.3563 n ,

0 50 100 150 200 Dose ugiL Page 1 ToxCalc v5.0.23 Reviewed by:.

Abalone Larval Development Test-Proportion Normal Start Date: 11/8/2006 Test ID: ABS110806 Sample ID: REF-Ref Toxicant End Date: 11/10/2006 Lab ID: ABC LABS Sample Type: ZNSO-Zinc sulfate Sample Date: 111812006 Protocol: MBP 90-Anderson et al. Test Species: HR-Haliotis rufescens Comments: Standard Toxicant Dose-Response Plot 0

z Page 2 ToxCalc v5.0.23 Reviewed by: .>\

Abalone Larval Development Test-Proportion Normal Start Date: 11/8/2006 Test ID: ABS110806 Sample ID: REF-Ref Toxicant End Date: 11/10/2006 Lab ID: ABC LABS Sample Type: ZNSO-Zinc sulfate Sample Date: 11/8/2006 Protocol: MBP 90-Anderson et al. Test Species: HR-Haliotis rufescens Comments: Standard Toxicant Auxiliary Data Summary Conc-ug/L Parameter Mean Min Max SD CV% N Control Temp C 15.10 15.10 15.10 0.00 0.00 18 15.10 15.10 15.10 0.00 0.00 32 15.10 15.10 15.10 0.00 0.00 56 15.10 15.10 15.10 0.00 0.00 100 15.10 15.10 15.10 0.00 0.00 180 15.10 15.10 15.10 0.00 0.00 Control pH 6.55 5.40 *7.70 1.63 19.47 18 6.55 5.40 7.70 1.63 19.47 32 6.55 5.40 7.70 1.63 19.47 56 6.55 5.40 7.70 1.63 19.47 100 6.55 5.40 7.70 1.63 19.47 180 6.55 5.40 7.70 1.63 19.47 Control DO mg/L 7.50 7.50 7.50 0.00 0.00 18 7.50 7.50 7.50 0.00 0.00 32 7.50 7.50 7.50 0.00 0.00 56 7.50 7.50 7.50 0.00 0.00 100 7.50 7.50 7.50 0.00 0.00 180 7.50 7.50 7.50 0.00 0.00 Control Salinity ppt 34.00 34.00 34.00 0.00 0.00 18 34.00 34.00 34.00 0.00 0.00 32 34.00 34.00 34.00 0.00 0.00 56 34.00 34.00 34.00 0.00 0.00 100 34.00 34.00 34.00 0.00 0.00 180 34.00 34.00 34.00 0.00 0.00 Page 3 ToxCalc v5.0.23 Reviewed by: (-

DCL-2007-501, Fourth Quarter 2006 Discharge Monitoring Report

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Dear Mr. Briggs:

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Dear Ms. Ziegler:

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DCL-2007-501, Fourth Quarter 2006 Discharge Monitoring Report

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Dear Mr. Briggs:

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