ML072080486

Second Quarter 2007 Report on Discharge Monitoring at Diablo Canyon Power Plant

ML072080486
Person / Time
Site:	Diablo Canyon
Issue date:	07/19/2007
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-2007-523
Download: ML072080486 (105)

Text

Pacific Gas and Electric Company'

- Diablo Canyon Power Plant P. 0. Box 56 Avila Beach, CA 93424 July 19, 2007 PG&E Letter DCL-2007-523 Certified/Return Receipt 7007-0220-0004-6735-9721 California Regional Water Quality Control Board Central Coast Region Attn: Monitoring and Reporting Review Section 895 Aerovista, #101 San Luis Obispo, CA 93401-7906

Dear Mr. Briggs:

In accordance with Order 90-09, NPDES No. CA0003751, enclosed is the Second Quarter 2007 Report on Discharge Monitoring at Diablo Canyon Power Plant (Enclosure 1).

Facility Name:

Pacific Gas & Electric Company Diablo Canyon Power Plant Address:

Contact Person:

Job

Title:

Phone Number:

WDR/NPDES Order Number:

Type of Report: (check one)

Quarter: (check one):

Year:

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

P.O. Box 56 Avila Beach, CA 93424 Bran Cunningham Supervisor, Environmental Operations 545-4439; Order No. 90-09, NPDES No. CA0003751 QUARTERLY ANNUAL t

2nd.

3 rd 4th LiE 2007 (Annual Reports for DCPP are Jan-Dec)

[] No (there are no violations to report)

Note'A Single Settleable Solids Exceedance Result for a Pathway 001 N (Sanitary Wastev'ater) Sample Occurred. Event Description Included in Overview Section 6.

El

[]

Yes

PG&E Ltr DCL-2007-523 Mr. Briggs, CRWQCB July 19, 2007 Page 2 If Yes is marked (complete a-g):

a) Parameter(s) in Violation:

b) Section(s) of WDR/NPDES Violated:

c) Reported Value(s) d) WDRINPDES Limit/Condition:

e) Dates of Violation(s)

(reference page of report/data sheet):

f) Explanation of Cause(s):

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

(attach additional information as needed)

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

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

PG&E Ltr DCL-2007-523 Mr. Briggs, CRWQCB July 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 Operations and Station Director 2007523/bkc/kmo

PG&E Ltr DCL-2007-523 Mr. Briggs, CRWQCB July 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-2007-523 ENCLOSURE 1 SECOND QUARTER 2007 REPORT ON DISCHARGE MONITORING AT DIABLO CANYON POWER PLANT

PACIFIC GAS AND ELECTRIC COMPANY NUCLEAR POWER GENERATION Second Quarter 2007 REPORT ON DISCHARGE MONITORING AT DIABLO CANYON POWER PLANT (NPDES No. CA0003751)

PACIFIC GAS AND ELECTRIC COMPANY Second Quarter 2007 REPORT ON DISCHARGE MONITORING AT DIABLO CANYON POWER PLANT TABLE OF CONTENTS page O V E R V IE W................................................................................

1

SUMMARY

OF MONITORING PROGRAM A.

Monitoring of Plant Influent and Effluent.......................

3 B.

Monitoring of Receiving W aters....................................

3 C.

Sodium Bromide Treatment Program...........................

3 APPENDIX 1: NPDES Discharge Points APPENDIX 2: Influent and Effluent Monitoring - April 2007 APPENDIX 3: Influent and Effluent Monitoring - May 2007 APPENDIX 4: Influent and Effluent Monitoring - June 2007 APPENDIX 5: Acute Bioassay, April 26-30, 2007 APPENDIX 6: Chronic Bio~ssay, April 26-28, 2007

OVERVIEW

1. During the second quarter of 2007, discharges occurred from Discharge Paths 001 (once through cooling water), 001B, 001D, 001E, 001F, 001G, 001H, 001J, 001L, 001M, 001N, 001P, andc002 through 004. No discharges occurred from Discharge Paths 0011, 001K, or 005 through 017. A list of all of the permit discharge pathways, including name and number, is provided in Appendix 1.

2. The substances listed in Table B of the 1990 California Ocean Plan were each analyzed for and reported in the permit renewal application for Diablo Canyon submitted in 1994.

There have been no changes in the activities conducted at the plant that would have significantly affected the results previously reported in the 1994 renewal application.

California Ocean Plan Table B substances that were not analyzed for this quarter were not added to the discharge stream.

3. During the second quarter of 2007, maintenance activities that required draining of closed cooling water systems were performed and are summarized below. PG&E received concurrence from the CCRWQCB in response to letters dated July 19, 1995 (PG&E Letter DCL-95-156), May 23, 1996 (PG&E Letter DCL-96-522), and May 19, 1997 (PG&E Letter DCL-97-533) regarding the use of glutaraldehyde and isothiazolin to control microbiological growth and corrosion in DCPP's closed cooling water systems.

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

Date System Volume Glutaraldehyde Isothiazolin (gallons)

(mg/I)

(mg/I) 4/30/07 Unit 1 ICW 1,100

<50

<0.25 4/30/07 Unit 1 SCW 11,000

<50

<0.25 5/09/07 Unit 1 CCW 9,920 186

<0.25 5/15/07 Unit 1 CCW 25 173

<0.25 5/19/07 Unit 1 CCW 1,451 186

<0.25 5/31/07 Unit 1 SCW 33,499 222

<0.25 6/07/07 Unit 2 SCW 33,300

<50 4.4 6/30/07 Unit 2 SCW 80 67 4.4

4. Two events during the second quarter affected continuous chlorine monitoring. at Discharge 001. In each case, an engineering evaluation was completed in accordance with PG&E's January 5, 1994 letter as authorized by the CCRWQCB. The event interval, affected monitor(s), number of affected results, the cause(s), and corrective action(s) are tabulated below. The engineering evaluations used recorded injection rates and condenser waterbox inlet chlorine results to calculate estimates of chlorine concentration for the affected monitor at Discharge 001. These estimates are used to replace results affected by the respective monitor problem per the letter agreement with Regional Board Staff. Injection rates are set to provide a minimal amount of detectable chlorine at the discharge. Results from the engineering evaluations were all at least 60 pg/L below the applicable 89-pg/L discharge limit.

Interval Affected Number of Cause Corrective Actions Monitor(s)

Affected Readings 5/12/07 Unit 2 1

Power to chlorine monitoring Chlorine injection system was interrupted, stopped until monitor power restored.

6/27/07 Unit 1 21 during 2na Shift of monitor calibration Monitor recalibrated to quarter after 6127107 scheduled after identification of 7/03/07 maintenance, conservative bias.

5. On Thursday, 6/14/07, the weekly sample for settleable solids was taken from the sewage treatment plant (Discharge 001 N). The sample was delivered to the certified contract laboratory on Friday 6/15/07. Analysis of the sample could not be performed until Sunday, 6/17/07 because appropriate laboratory personnel were unavailable. Therefore, the sample was analyzed approximately 24-hours after the end of the 48-hour maximum holding time. The result of the analysis was below the 0.1 ml/L reporting limit (non-detect).

Due to the nature of settleable solids as an analyte, it is unlikely that the result was significantly affected by the extended holding period. Discussion regarding the late analysis were held with the sewage treatment system operator and the contract laboratory manager. Future sampling times will be performed to avoid necessity for Friday sample

-deliveries to the off-site laboratory.

6. On June 21, 2007, the weekly sample from the sewage treatment plant (Discharge 001N) was taken and delivered to the off-site contract laboratory for analysis (Creek Environmental).

The sample was analyzed on June 2 2 nd, and reported to contain 3.9 ml/L of settleable solids.

The maximum discharge concentration for this parameter from Pathway 001 N in DCPP's NPDES permit is 3.0 ml/L. Upon receiving the analysis result from the contract laboratory on July 2, 2007, DCPP contacted the Regional Board and reported the apparent exceedance.

Regional Board Staff (von Langen) waived the 5-day report and requested that a description of the event be included in the Discharge Monitoring Report for the second quarter 2007.

Settleable solids are typically non-detect (ND) (<0.1 ml/L) in samples taken from the sewage system effluent. Samples are obtained from the bucket of the system decanting apparatus. This is a conservative location for sampling the pathway because it is upstream of the lift station cistern, where mixing and dilution by previously-decanted fluid occurs.

Results for settleable solids samples taken in the two weeks prior to June 21, (June 8th and June 14th) were 0.1 milL and ND respectively. The result for the sample subsequent

to June 21 (on June,27th) was ND again. The monthly average limit for settleable solids in 001 N effluent is 1.0 milL. The monthly average limit was approached but not exceeded for June inclusive of the 3.9 mil/L laboratory result obtained from the June 21st sample.

The system operator performs at least two samples in sequence each week during a decant phase. One sample is analyzed on-site to assess real-time system performance, and the second sample sent to a qualified off-site laboratory. The result for on-site analysis of the sample taken at 09:15 on June 2 1st was 2.5 ml/L settleable solids.

However, this analysis is not recognized as a formal result because it is not conducted by a certified laboratory. The second sample taken at 09:17 was delivered to a contract laboratory certified to perform the analysis by the State Environmental Laboratory Accreditation Program (ELAP). The 3.9 ml/L settleable solids result of that analysis is the value reported for the pathway.

The June 2 1 st samples were taken as sewage plant operation was in a transitional period to a more typical processing rate after a plant refueling outage when sewage system flows are significantly increased. A potential system anomaly that could result from substantial sewage flow reduction is described below in the background information. To date, no other system changes or events have been identified as potential contributing factors to the June 2 1st laboratory result. No system operating condition or equipment issue has been identified that would have generated excess settleable solids in the decanting aqueous phase. System pumps, aeration equipment, and electrical/mechanical equipment logic controls show no evidence of failure. Operational logs for the facility do not evidence significant unusual conditions previous to, or immediately after, the June 2 1st sampling period. The cause of the June 2 1st apparent exceedance is continuing to be evaluated; however, a conclusive determination may not be reached.

Background information regarding the DCPP sewage treatment system:

Liquid sewage influent undergoes a 90-minute aeration within a cement treatment tank.

Aeration is followed by a 60-minute settling period. Following settling, a decanting arm slowly pivots down to allow the separated aqueous phase to flow-out over a 90-minute period. Settled solids in the treatment tank can then be pumped to a sludge holding tank if required. Solids transfer to the sludge holding tank is accomplished both automatically and manually. An automatic transfer of solids occurs once daily; typically lasting for 10-minutes and occurring at the end of a settling period. The sewage treatment plant operator may elect to perform additional manual transfer to maintain suspended solids in a 3,000-3,500 mg/L target band during aeration steps. These manual transfers are intended to optimize aerobic (oxygenated) bacterial digestion of the sewage undergoing

-. treatment. During periods when average sewage flow is significantly increasing or decreasing, the system operator may need to make adjustments of the daily sludge transfer rate to maintain target operating ranges.

Following the settling phase, effluent flows into the decanting bucket of the pivot arm and is then gravity fed to a pumping station cistern. The pumping station lifts accumulated effluent within the cistern which then flows by gravity to the 001 N discharge point. The 001 N pathway discharges into, and is combined with, DCPP's main cooling water circulating system flow prior to final outfall through the 001 discharge. Effluent from the sewage treatment system is therefore significantly diluted prior to final outfall from the power plant to receiving waters.

Prolonged suspension of solids during the settling phase can occur if conditions that inhibit normal settling exist. One such set of conditions includes an unusually high

bacterial population and relatively vigorous anaerobic (non-oxygenated) bacterial digestion within the solid phase. Vigorous anaerobic digestion within the sludge could generate off-gassing at a rate sufficient to keep pushing a portion of the solids back up into the aqueous layer' it is believed that this type of scenario may have caused the isolated event on June 2 1 st, though that has not been conclusively determined.

Significant changes of the system bacterial population can occur during transitions from a relatively high rate of processing to lower, more routine, operational volumes. Such circumstances take place following refueling outages at DCPP when augmented plant staffing is rapidly reduced, i.e., the plant population is reduced by more than one fourth within a single week. Essentially, the bacterial population established during heavy sewage influx is subjected to reduced nutrient availability, causing the population equilibrium to shift to a new state. Such a shift has potential to produce a significant anaerobic system condition that may be accompanied by gaseous disturbance of the settled solids. Such events are not routine, and would only occur when variant conditions (temperature, bacterial population density and composition, bacterial nutrient mixture, influent chemical composition) combined to create an environment favorable for such an event. Such conditions in a frequently aerated treatment system would be considered off-normal, and anticipated to be short term in duration.

SUMMARY

OF MONITORING PROGRAM A.

Monitorinq of Plant Influent and Effluent

1. The results of the April, May, and June 2007 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 April 26-30, 2007, 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 April 26-28, 2007, is included in Appendix 6. The bioassay results show that chronic toxicity was 1.0 TUc (no chronic toxicity).

B.

Monitoringq of Receiving Waters

1.

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

2.

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

C.

Sodium Bromide Treatment 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 in combination with sodium hypochlorite (NaOCI). Each injection attempts to achieve a target

.concentration of 200 parts per billion (ppb) Total Residual Oxidant (TRO) when measured at the inlet waterbox of the condenser. Discharge TRO, measured at the plant outfall, remains below NPDES limitations.

Both conduits of Unit 1 were treated with simultaneous injections of sodium bromide and sodium hypochlorite six times a day through mid April 2007 with brief interruptions for maintenance activities. On April 2 0 h, sodium bromide injections were shut down, while sodium hypochlorite injections continued until April 27th when Unit 1 main conduit chemical treatment was secured for the 1 R1 4 refueling outage. Simultaneous injections were restarted May 24th and ran through the rest of the second quarter with only one brief interruption for a scheduled main seawater circulator clearance.

Unit 2 conduits started the second quarter 2007 with injections shut down for a scheduled tunnel cleaning. Injections were restarted after tunnel cleaning completion on April 3rd and 5th. Simultaneous injections of sodium hypochlorite and sodium bromide continued for Unit 2 the remainder of the quarter with brief interruptions in April and May for maintenance activities.

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 April 2007

CAUFORNIA REGIONALWATER QUAULfY 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 FACILITY 1.D.

YEAR / MO / DAY YEAR / MO I DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 07 /04

/ 01 ENDING 07 / 04 / 30 06 CA0003751 STATION INFLUENT EFFLUENT001 DELTATEMP EFFLUENT001 INFLUENT EFFLUENT001 EFFLUENT001P EFFLUENT002 ANALYSIS TEMPERATURE TEMPERATURE TEMPERATURE FLOW pH pH pH pH UNITS DEGREES F DEGREES F DEGREES F MGD pH UNITS pH UNITS pH UNITS pH UNITS SMPL TYPE METERED METERED METERED RECORDED GRAB GRAB GRAB GRAB FRED.

CONTINUOUS CONTINUOUS CONTINUOUS DAILY MONTHLY MONTHLY

(')

MONTHLY MONTHLY 1

50.9 69.5 18.6 2486 2

50.4 68.1 17.7 2278 3

50.8 70.0 19.2 1862 2

7.7 4

51.3 70.1 18.8 1914 7.9 8.0 2

7.9 5

51.1 69.5 18.4 2486 6

51.0 68.3 17.3 2486 7

50.8 69.2 18.4 2486 8

50.8 69.2 18.4 2486 9

50.9 69.3 18.4 2486 10 50.8 69.1 18.3 2486 11 50.6 69.0 18.4

.2486 12 50.4 68.9 18.5 2486 13 49.9 68.3 18.4 2486 14 50.1 68.7 18.6 2486 15 50.2 68.9 18.7 2486 16 50.4 69.1 18.7 2486 17 50.7 69.5 18.8 2486 18 49.7 68.5 18.8 2486 19 49.0 67.9 18.9 2486 20 48.4 66.6 18.2 2486 21 49.9 68.8 18.7 2486 22 49.8 68.4 18.6 2486 23 49.9 68.5 18.6 2486 24 49.4 67.9 18.5 2486 25 49.4 67.8 18.4 2486 26 49.0 67.5 18.5 2486 27 49.2 67.5 18.3 2486 28 51.0 69.5 18.5 2486 29 49.9 68.3 18.4 2461 30 50.1 64.8 14.7 1891 31 MONTHLY AVG 50.2 68.6 18.4 2419 7.9 8.0 7.7 7.9 MONTHLY HIGH 51.3 70.1 19.2 2486 7.9 8.0 7.7 7.9 MONTHLY LOW 48.4 64.8 14.7 1862 7.9 8.0 7.7 7.9 TIMES EXCEEDED NO UMIT NO UMIT MAX 22 = 0 MAX 2760 = 0 NO UMIT NO UMIT NO UMIT NO uMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

EXCEPT DURING DEMUSSEUNG.

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

C.AUFORNIA 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) 2 FACILITY I.D.

YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 07 / 04 / 01 ENDING 07 / 04 / 30 06 CA0003751 STATlON EFFLUENTO03 EFFLUENTEO4 EFFLUENT001N EFFLUENTEC1P EFFLUENT003 EFFLUENT001F EFFLUENT 001 EFFLUENT001 ANALYSIS pH pH OIL &GREASE OIL & GREASE OIL & GREASE OIL & GREASE T CHLOR RES CHLORINE USED UNITS pH UNITS pH UNITS rng mAmm mg mgon ugl lbs/day SMPL TYPE GRAB GRAB COMPOSITE GRAB GRAB GRAB GRAB..)

RECORDED FREQ.

MONTHLY MONTHLY WEEKLY WEEKLY I*I)

WEEKLY I1)

MONTHLY 2 per CYCLE MONTHLY 1

23 230 2

28 230 3

ND(5) 25 230 4

8.0 7.9 16 250 5

3 ND(5) 14 307 6

19 461 7

23 461 8

21 461 9

3 ND(5) 23 461 10 23 461 11 19 461 12 21 461 13 23 461 14 23 461 15 23 461 16 21 461

.17 21 461 18 23 406.

19 20 348 20 3

ND(5) 20 408 21 21 403 22 21 403 23 21 403 24 18 235 25 23 403 26 3

ND(5) 23 403 27 20 302 28 10 202 29 11 202 30 13 202 31 MONTHLY AVG 8.0 7.9 ND(5)

NO NO ND(5) 20 370 MONTHLY HIGH 8.0 7.9 ND(5)

DISCHARGE DISCHARGE ND(5) 28 461 MONTHLY LOW 8.0 7.9 ND(5)

ND(5) 10 202 TIMES EXCEEDED NO LIMIT NO UMIT MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 IMAX200= 0 NO UMIT TIMES EXCEEDED D MAX 20 = 0 D MAX 20 = 0 D MAX 20 = 0 D MAX 20 = 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 INSTEAD OF GRAB I

PRINCIPAL EXECUTIVE OFFICER

(

JAMES R.

BECKER

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 3 FACIULTY I.D.

YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3 402003001 BEGINNING 07 / 04 I 01 ENDING 07 / 04 / 30 06 CA0003751 STATION EFF 001N>003 EFF 001N=>003 EFFLUENT001D EFFLUENT001F ANALYSIS TOTL COLIFORM FECAL COLIFORM SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS MPN/100rI MPN/100mI mg/i 1st FLTR mg/i 2nd FLTR mg/i NET mg/i 1st FLTR "

mg 2nd FLTR mg/i NET SMPL TYPE GRAB GRAB GRAB GRAB FRED.

4 TIMESIWEEK 4 TIMES/WEEK MONTHLY MONTHLY 2

3 2

16 2

16 4

1 ND(5) 5 2

29 2 <

1 2

29 6

1 ND(5) 7 8

9 2

3 2

ND(5) 10 11 12 2

1 2

ND(5) 13 14 15 16

.17 18 19 20 2

26 2

1 2

25 21 22 23 24 25 26 27 28 29 30 31 1 1 1 1 1 1 1 1 MONTHLY AVG NO NO 5

16 MONTHLY HIGH DISCHARGE DISCHARGE 29 17 MONTHLY LOW ND(5) 15 TIMES EXCEEDED 80%/6 SMPLS>1K MEAN>200=

NO UMIT NO UMIT MO AVG 30 = 0 NO UMIT NO UMIT MO AVG 30 = 0 TIMES EXCEEDED 90 % SMPLS>400 D MAX 100 = 0 D MAX 100 = 0 TIMES EXCEEDED I MAX >10K REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

-FLOW-WEIGHTED AVERAGES REPORTED.

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

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

YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 07 / 04 / 01 ENDING 07 / 04 / 30 06 CA0003751 STATION EFFLUENTOIG EFFLUENT001H ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mgli 1st FLTR mg/i 2nd FLTR mg/i NET mg/i 1st FLTR mg/1 2nd FLTR mgil NET SMPL TYPE GRAB GRAB FREQ.

MONTHLY MONTHLY 2

3 3

ND(5) 3 1

ND(5) 4 5

6 7

8 9

10 11 12 13 14 15 16 17 18 19 20.

21 22 23 24 25 26 27 28 29 30 31 MONTHLYAVG ND(5)

ND(5)

MONTHLY HIGH ND(5)

ND(5)

MONTHLY LOW ND(5)

ND(5) 11MES EXCEEDED NO LIMIT NO LIMIT MO AVG 30=0 NO UMIT NO UMIT MO AVG 30=-0 TIMES EXCEEDED D MAX 100= 0 D MAX 100= 0 TMES 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) 5 FACIULTY I.D.

YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 04 / 01 ENDING 07 / 04 I 30 06 CA0003751 STATION EFFLUENT 0011 EFFLUENT 001J ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mgil 1st FLTR mg/i 2nd FLTR mg/I NET mg/I 1st FLTR mgti 2nd FLTR mg/i NET 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 1

ND(5) 31 1 1 1 1 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 MAX 100 = 0 MAX 100 = 0 TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT' CENTRAL COAST REGION PO BOX 56 895 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 07 / 04 / 01 ENDING 07 I 04 I 30 06 CA0003751 STATION EFFLUENT 001K EFFLUENT001L ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mg/1 1stFLTR mg/1 2nd FLTR mg/i NET mrg/1 1st FLTR mg/1 2nd FLTR mg/1 NET SMPL TYPE GRAB GRAB FREQ.

MONTHLY MONTHLY 1

2 3

2 1

2 ND(5) 4 5

6 7

8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 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 D MAX 100 = 0 D MAX 100 = 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 AV1LA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 7 FACILITY I.D.

YEAR I MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 04 / 01 ENDING 07 / 04 / 30 06 CA0003751 STA'TION EFFLUENT001M EFFLUENTOO1N EFFLUENT001P ANALYSIS SUSPENDED SOLIDS SUSPENDED SLDS SUSPENDED SOLIDS UNITS mg1l 1ist FLTR mg/1 2nd FLTR mg/l NET mg/i mgol 1st FLTR mg/1 2nd FLTR mgol NET SMPL TYPE GRAB COMPOSITE GRAB FREG.

MONTHLY WEEKLY MONTHLY 2

3 2

2 ND(S) 4 3

13 7

9 14 10 11 12 13 14 15 16 17 18 19 2o 12 21 22 23 24 25 26 8

27 28 29 30 31 MONTHLY AVG NO 12 ND(5)

MONTHLY HIGH DISCHARGE 14 ND(5)

MONTHLY LOW 8

ND(5)

TIMES EXCEEDED NO UMIT NO UMIT MOAVG 30=0 MOAVG 60=0 NO UMIT NO UMIT MOAVG30=0 TIMES EXCEEDED DMAX100 = 0 DMAX 100 = 0 TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUAULrY 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) 8 FACIUTY I.D.

YEAR/MO/DAY YEAR/MO/DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 07 / 04 1 01 ENDING 07 / 04 / 30 06 CA0003751 STATION EFFLUENT 002 EFFLUENT 003 ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mg/1 1st FLTR mg/i 2nd FLTR mg/ NET mg/i lt FLTR mg/i 2nd FLTR mg/I NET SMPL TYPE GRAB GRAB FREG.

MONTHLY MONTHLY 1

2 3

4 2

2 2

1 2

ND(5) 2 13 2

1 2

12 5

6 7

8 9

10 11 12 13 2

6 2 <

1 2

6 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG ND(5) 9 MONTHLY HIGH ND(5) 16 MONTHLY LOW ND(5) 5 TIMES EXCEEDED NO UMIT NO UMIT MO AVG 30 =0 NO UMIT NO UMIT MO AVG 30 0 TIMES EXCEEDED D MAX 100 =0 D MAX 100=0 TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

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) 9 FACILITY I.D.

YEAR /MO /DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 07 / 04 / 01 ENDING 07 / 04 1 30 06 CA0003751 STATION EFFLUENT 003 EFFLUENT001N EFFLUENT 001 EFFLUENT001 EFFLUENT001 EFFLUENT 001 ANALYSIS SUSPENDED SOLIDS SETTL SOLIDS T CHROMIUM COPPER NICKEL ZINC UNITS mg/1 1st FLTR mg/i 2nd FLTR mg/i NET ml/1 ug/1 ugl1 ug/1 ug/1 SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB FREQ.

WEEKLY WHEN 001N & 01P => 003 WEEKLY MONTHLY MONTHLY MONTHLY MONTHLY 2

3 4

5 ND(0.1) 6 7

8 9

ND(0.1) 10 11 12 13 14 15 16 17 18.

19 20 ND(0.1)

ND(10)

ND(10)

ND(10)

ND(10) 21 22 23 24 25 26 ND(0.1) 27 28 29 30 31 MONTHLY AVG NO ND(0.1)

ND(1O)

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 11MESEXCEEDED DMAX100 = 0 DMAX3.0 =0 DMAX40 = 0 DMAX0 = 0 DMAX100 = 0 DMAX380 = 0 TIMES EXCEEDED IMAX100=0 I MAX 140=0 IMAX260=0 1MAX990=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 P0 BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 1 FACIUTY I.D.

YEAR/MO/DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 07 / 04 / 01 ENDING 07 / 04 / 30 06 CA0003751 STATION INFLUENT INFLUENT INFLUENT INFLUENT EFFLUENT001 EFFLUENT001D EFFLUENTO0IG EFFLUENTGOH ANALYSIS T CHROMIUM COPPER NICKEL AMMONIA (N)

AMMONIA (N)

OIL & GREASE OIL & GREASE OIL & GREASE UNITS ug/1 ug/1 ugi1 ugih ugh mg/l rmg/i mg/I SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ.

JNAP/JULIOCT JANAP/JULIOCT JNAP/JULIOCT JNAP/JULIOCT JAIAP/JULIOCT JNAP/JULIOCT JNAP/JULIOCT JNAP/JULIOCT 2

ND(5) 3 ND(5) 4 ND(200)

ND(200)

ND(5) 5 ND(5) 6 7

8 9

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

ND(10)

ND(10).

6 21 22 23 24 25 26 ND(5) 27 28 29 30 31 1 1 1 1 MONTHLY AVG ND(10)

ND(10)

ND(10)

ND(200)

NO(200) 5 ND(5)

ND(5)

MONTHLYHIGH ND(10)

ND(10)

ND(10)

ND(200)

ND(200) 6 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 UMIT NO UMIT NO UMIT 6M-MED 3060 = 0 MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 TIMES EXCEEDED D MAX 12240 = 0 D MAX 20 = 0 DMAX20 = 0 D MAX 20 = 0 11MES 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 58 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 2 FACILITY ID.

YEAR / MO / DAY YEAR / MO/ DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 I 04 / 01 ENDING 07 / 04 / 30 06 CA0003751 STATION EFFLUENT 0011 EFFLUENT00IJ EFFLUENT001K EFFLUENT001L EFFLUENT001M 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/l mg/i mg/i mg/i mg/i mg/1i lg/l SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FRED.

JNAP/JUI.OCT JNAP/JULIOCT JNAP/JULJOCT JAIAP/JUUOCT JANAP/JUL/OCT JAlAP/JULJOCT JA/AP/JULIOCT JNAP/JUL/OCT 2

3 2

NO(S)

NO(5) 4 2

ND(5)

ND(5) 5 6

7 8

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

MONTHLY AVG NO ND(5)

NO ND(5)

NO ND(5)

ND(S)

ND(5)

MONTHLY HiGH DISCHARGE ND(5)

DISCHARGE ND(5)

DISCHARGE ND(5)

ND(5)

ND(5)

MONTHLY LOW ND(5)

ND(5)

ND(5)

ND(5)

ND(5)

TIMESEXCEEDED MOAVG15=0 MOAVGIS=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG15=0 MOAVG 15=0 MOAVG15=0 TIMES EXCEEDED D MAX 20 = 0 D MAX 20 =0 D MAX 20 = 0 DMAX20 = 0 D MAX 20 = 0 D MAX 20 = 0 D MAX 20 = 0 DMAX20 = 0 TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

SI PRINCIPAL EXECUTIVE OFFICER I

[

AMS 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, SUrrE 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 07 / 04 / 01 ENDING 07 / 04 / 30 06 CA0003751 STATION EFFLUENT 004 EFFLUENT 001 EFFLUENTOOD EFFLUENT001H EFFLUENT001L EFFLUENT001F ANALYSIS OIL & GREASE TOX CONCEN CADMIUM CADMIUM CADMIUM CADMIUM UNITS mgn1 TU uglI ug/1 ugi1 ugh SMPL TYPE GRAB GRAB OTRLY COMP OTRLY COMP OTRLY COMP 1 WEEK COMP FREQ.

JA/AP/JUIJOCT JANAP/JUIJOCT JNAP/JUUOCT JAIAP/JULIOCT JNAP/JULIOCT JNAP/JULUOCT 2

3 4

ND(5) 5 6

7 8

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

ND(10) 13 ND(10) 14 15 16 17 18 19 20 21 22 23 24 0.00 25 26 27 28 29 30 31 MONTHLY AVG ND(5) 0.00 ND(10)

ND(10)

ND(10)

ND(10)

MONTHLY HIGH ND(5) 0.00 ND(10)

ND(10)

ND(10)

ND(10)

MONTHLY LOW ND(5) 0.00 ND(10)

ND(10)

ND(10)

ND(10)

TiMES EXCEEDED MO AVG 15 = 0 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.

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) 4 FACILITY I.D.

YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 04 I 01 ENDING 07 / 04 / 30 06 CA0003751 STATION EFFLUENTO01D EFFLUENT O01H EFFLUENT01L EFFLUENTO01F EFFLUENTOOID EFFLUENTO01H EFFLUENT O01L EFFLUENT O01F ANALYSIS CHROMIUM T CHROMIUM TCHROMIUM TCHROMIUM COPPER COPPER COPPER COPPER UNITS ugf1 ugh ugj1 ugl1 ug/1 ug/1 ug/1 ug/1 SMPLTYPE OTRLYCOMP QTRLY COMP OTRLY COMP 1 WEEK COMP OTRLY COMP OTRLYCOMP OTRLY COMP 1 WEEK COMP FRED.

JA'AP JUULOCT JNAP/JUIJOCT JNAPIJULJOCT JNAPIJUIJOCT JNAP/JUL/OCT JNAPIJUIJOCT JANAPIJUIJOCT JNAPIJUI.OCT 2

3 4

5 6

7 8

9 10 11 ND(10) 2 ND(10)

ND(10) 2 ND(10) 12 2

31 2

61 13 ND(10)

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

ND(10)

ND(10) 61 ND(10)

ND(10)

MONTHLY HIGH ND(10) 41 ND(10)

ND(10)

ND(10) 91 ND(10)

ND(10)

MONTHLY LOW ND(10) 21 ND(10)

ND(10)

ND(10) 31 ND(10)

ND(10)

TIMES EXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT 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: (Q) 5 FACILITY I.D.

YEAR / MO / DAY YEAR/MO/DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 04 / 01 ENDING 07 / 04 / 30 06 CA0003751 STATION EFFLUENTOOD EFFLUENT001H EFFLUENT"001L EFFLUENT001F EFFLUENTOOlD EFFLUENT001H EFFLUENT 001L EFFLUENT001F ANALYSIS LEAD LEAD LEAD LEAD MERCURY MERCURY MERCURY MERCURY UNITS ug/1 ug11 ug/1 ug/1 ugh1 ug/1 ugh1 ug/1 SMPL TYPE QTRLYCOMP OTRLY COMP OTRLY COMP 1 WEEK COMP QTRLY COMP QTRLYCOMP QTRLY COMP 1 WEEK COMP FREQ.

JANAP/JULIOCT JAIAP/JUIOCT JNAP/JUIJOCT JNAP/JULJOCT JAIAPIJUIJOCT JNAP/JULIOCT JANAP/JUUOCT JANAP/JUL/OCT 2

3 4

5 6

7 8

9 10 11 ND(10) 2 ND(10)

ND(0.2) 2 ND(0.2) 12 2

ND(10) 2 ND(0.2) 13 ND(10)

ND(0.2) 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG ND(10)

ND(I0)

ND(I0)

ND(10)

ND(0.2)

ND(0.2)

ND(0.2)

ND(0.2)

MONTHLYHIGH ND(10)

ND(10)

ND(I0)

ND(l0)

ND(0.2)

ND(O.2)

ND(0.2)

ND(O.2)

MONTHLY LOW ND(10)

ND(10)

ND(I0)

ND(10)

ND(0.2)

ND(0.2)

ND(0.2)

ND(0.2)

MES EXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT MES EXCEEDED MES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 6 FACILITY I.D.

YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 04 1 01 ENDING 07 / 04 / 30 06 CA0003751 STATION EFFLUENT001 EFFLUENT0OIH EFFLUENT001L EFFLUENTOSIF EFFLUENTOGID EFFLUENT00IH EFFLUENT001L EFFLUENT001F ANALYSIS NICKEL NICKEL NICKEL NICKEL SILVER SILVER SILVER SILVER UNITS ugl1 ug/1 ug/t ug/l ug/1 ug/1 ugh ug/1 SMPL TYPE OTRLY COMP OTRLY COMP OTRLY COMP I WEEK COMP QTRLY COMP GTRLY COMP OTRLY COMP 1 WEEK COMP FREQ.

JNAP/JULIOCT JNAP/JUUOCT JANAP/JULUOCT JNAAPJULIOCT JANAP/JUL/OCT JANAP/JUL/OCT JNAP/JUUOCT JNAP/JULIOCT 1

2 3

4 5

6 7

8 9

10 11 ND(10) 2 ND(10)

ND(10) 2 ND(10) 12 2

22 2

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

ND(10)

ND(10)

ND(10)

MONTHLY HIGH ND(10) 27 ND(10) 11 ND(10)

ND(10)

ND(10)

ND(10)

MONTHLY LOW ND(10) 17 ND(10) 11 ND(10)

ND(10)

ND(10)

ND(10)

TIMES EXCEEDED NO LIMIT NO UMIT NO LIMIT NO LIMIT NO UMIT NO UMIT NO LIMIT NO LIMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

p I

PRINCIPAL EXECUTIVE OFFICER i I

AMSR.BE CKER I

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) 7 FACILITY I.D.

YEAR / MO / DAY YEAR / MO / DAY.

STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 1 04 / 01 ENDING 07 / 04 / 30 06 CA0003751 STATION EFFLUENT001D EFFLUENT 001H EFFLUENT 0OlL EFFLUENT 001F ANALYSIS ZINC ZINC ZINC ZINC UNITS ug1 ug/1 ugl1 ugl1 SMPL TYPE QTRLY COMP QTRLY COMP QTRLY COMP 1 WEEK COMP FREQ.

JAAP(JUL/OCT JNAPfJUUOCT JNAP/JULOCCT JNAP/JULIOCT 2

3 4

5 6

7 8

9 10 11 212 2

ND(10) 12 2

17 13 17 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG 212 17 ND(10) 17 MONTHLYIHIGH 212 20 ND(10) 17 MONTHLY LOW 212 14 ND(10) 17 TIMES EXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT TIMES EXCEEDED.

TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION Po BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 8 FACIULTY I.D.

YEAR /MO /DAY YEAR/MO/DAY STATE CODE NPDES PERMTT#

3 402003001 BEGINNING 07 / 04 1 01 ENDING 07 / 04 / 30 06 CA0003751 STATION EFFLUENToOlD EFFLUENTOODF EFFLUENT0011 EFFLUENTO1L EFFLUENT001M ANALYSIS COPPER COPPER COPPER COPPER COPPER UNITS moil mg/i mgil mg/i mo/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 MOAVG 1 =0 MOAVG 1 =0 MO AVG I = 0 MO AVG 1 = 0 TMESEXCEEDED DMAX1 =0 DMAX1 =0 DMAX1 =0 DMAX1 =0 DMAX1 =0 11MES 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) 9 FACIULTY I.D.

YEAR/MO/DAY YEAR /MO /DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 04 /01 ENDING 07 / 04 / 30 06 CA0003751 STATION EFFLUENTOOID EFFLUENT001F' EFFLUENTO011 EFFLUENT001L EFFLUENTO01M ANALYSIS IRON IRON IRON IRON IRON UNITS mg/1 mg/i mg/i mg/i mg/i SMPLTYPE 24-HR COMP.

24-HR COMP.

24-HR COMP.

24-HRCOMP.

24-HR COMP.

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 TMES EXCEEDED MOAVG1=0 MOAVG 1 =0 MOAVG1=0 MOAVG 1 =0 MOAVG1=0 TIMESEXCEEDED DMAXI =0 DMAX1 =0 DMAXI =0 DMAXI =0 DMAXI =0 TIMES EXCEEDED 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 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 07 / 04 I 01 ENDING 07 / 04 1 30 06 CA0003751 STATION EFFLUENT 001 INFLUENT EFFLUENT INFLUENT EFFLUENT 001 INFLUENT EFFLUENT 001 INFLUENT ANALYSIS TITANIUM ARSENIC ARSENIC CADMIUM CADMIUM LEAD LEAD ZINC U N ITS ugtl ug /1 ug/ 1 ug/ 1 ug /-

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

MONTHLY HIGH ND(10)

MONTHLY LOW ND(10)

TIMES EXCEEOEO NO UMIT NO UMIT 6M-MED 30 = 0 NO UMIT 6M-MED 10 =0 NO UMIT 6M-MED 10 0 NO LIMIT TIMES EXCEEDED DMAX 150 = 0 DMAX20 = 0

.DMAX40 = 0, TIMES EXCEEDED IMAX400=O IMAX50- 0 IMAX 100=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 07 / 04 / 01 ENDING 07 / 04 / 30 06 CA0003751 STATION INFLUENT EFFLUENT001 INFLUENT EFFLUENT 001 INFLUENT EFFLUENT 001 INFLUENT EFFLUENT001 ANALYSIS MERCURY MERCURY SILVER SILVER CYANIDE CYANIDE PHENOLIC CMP PHENOLIC CMP UNITS ug/1 ugh ugh ug/1 ug/1 ug1 ugh (NONCL) ug/1 (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 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO LIMIT 6M-MED 0.2=0 NO LIMIT 6M-MED 2.9=-0 NO LIMIT 6M-MED 30=-0 NO LIMIT 6M-MED 150=0 TIMES EXCEEDED DMAX 0.8 = 0 DMAX 13.6=0 DMAX 100=0 DMAX 610= 0 TIMES EXCEEDED IMAX 2 = 0 IMAX 35= 0 IMAX 260=0 IMAX 1530=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 FACILITY I.D.

YEAR I MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 04 / 01 ENDING 07 / 04 / 30 06 CA0003751 STATION INFLUENT EFFLUENT 001 EFFLUENT001D EFFLUENT001D EFFLUENT 001D EFFLUENTEOS EFFLUENT008 ANALYSIS CHLOR PHENOL CHLOR PHENOL LITHIUM BORON HYDRAZINE OIL & GREASE OIL & GREASE UNITS ugl ugh mg/i mglml mg/

mg/i mgri 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 IMAX 50=0 REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

PRINCIPAL EXECUTIVE OFFICER JAMES R. BECKER

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

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

YEAR I MO / DAY YEAR / MO /DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 04 / 01.

ENDING 07 / 04 1 30 06 CA0003751 STATION EFFLUENT009 EFFLUENT013 EFFLUENT015 EFFLUENT016 EFFLUENT 017 INFLUENT EFFLUENT001 ANALYSIS OIL & GREASE GIL&GREASE OIL & GREASE OIL & GREASE OIL&GREASE PCB'S PCB'S UNITS mg/i mg/i mg/i mg/1 mg/i ug/l ug/1 SMPL*YPE 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 1 1 1 1 1 1 1 1 1

MONTHLY AVG MONTHLY HIGH MONTHLY LOW 11MES EXCEEDED MO AVG 15--0 MO AVG 15--0 MO AVG 15=0 MO AVG 15=0 MO AVG 15--0 NO LIMIT NO LIMIT TIMES EXCEEDED DMAX 20=0 DMAX 20=-0 DMAX 20=-0 DMAX 20=0 DMAX20=O TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

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

YEAR /MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 07 / 04 / 01 ENDING 07 / 04 / 30 06 CA0003751 STATION EFFLUENT OOIN EFFLUENT 001N EFFLUENT OOIN EFFLUENT 001N EFFLUENT 001N EFFLUENT 001N EFFLUENT 001N EFFLUENT 001N ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS MOISTURE TOT KJLDL N

AMMONIA (N)

NITRATE (N)

TOT PHOSPHS pH OIL & GREASE BORON SMPL TYPE mg/g mgog mgtkg mrn1(k pH unis mg/1kg m okg 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 3f I f I I I

I I MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO LIMIT NO UMIT NO UMIT 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 FACILITY I.D.

YEAR I MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT

• 3402003001 BEGINNING 07 / 04 / 01 ENDING 07 / 04 1 30 08 CA0003751 STATION EFFLUENTOOIN EFFLUENT001N EFFLUENT001N EFFLUENTOSIN EFFLUENT001N EFFLUENT001N EFFLUENT001N 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 mgjtg tons' FREQ.

GRAB GRAS GRAB GRAB GRAB GRAB GRAB OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 9"

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

.27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED 1OxSTLC-O 1OxSTLC=O 1oISTLC=o 1oxSTLC=0 10xSTLC=0 10xSTLC=O IoxSTLC=0 TIMES EXCEEDED 10 mgAkg=o 250 mg/kg--O 50 mg/kg=O 50 mgtkg=0 200 mg/kg=O 2 mg/kg=0 2500 mg/kg=0 TIMES EXCEEDED TTLC>100=-0 TTLC>2500=0 TTLC>500=0 TTLC>1000=O0 TTLC>2000=0 TTLC>20=O TTLC>5000=0 REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

APPENDIX 3 DIABLO CANYON POWER PLANT Influent and Effluent Monitoring May 2007

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 FACILITY I.D.

YEAR / MO/ DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 05 / 01 ENDING 07 / 05 / 31 06 CA0003751 STATION INFLUENT EFFLUENT001 DELTATEMP EFFLUENT001 INFLUENT EFFLUENT001 EFFLUENTO01P EFFLUENT002 ANALYSIS TEMPERATURE TEMPERATURE TEMPERATURE FLOW pH pH pH pH

.UNITS DEGREES F DEGREES F DEGREES F MGD pH UNITS pH UNITS pH UNITS pH UNITS SMPL TYPE METERED METERED METERED RECORDED GRAB GRAB GRAB GRAB FREQ.

CONTINUOUS CONTINUOUS CONTINUOUS DAILY MONTHLY MONTHLY

()

MONTHLY MONTHLY 1

51.8 70.2 18.4 1305 2

50.2 68.6 18.4 1279 2

7.9 3

50.2 68.8 18.6 1279 2

7.7 4

50.2 68.8 18.6 1279 5

49.3 68.0 18.7 1279 6

49.3 67.5 18.2 1279 7

50.5 68.4 17.9 1279 8

50.3 68.4 18.1 1279 9

50.4 69.0 18.6 1279 10 50.4 69.3 18.9 1279 11 50.2 69.0 18.8 1279 7.8 7.8 12 49.8 68.5 18.7 1279 13 49.0 67.8 18.8 1279 14 49.1 67.9 18.8 1279 15 49.3 68.1 18.8 1279 16 49.3 68.1 18.8 1279 17 49.1 67.8 18.7 1279 18 48.8 67.6 18.8 1279 19 48.8 67.4 18.6 1279 20 48.7 67.1 18.4 1279 21 48.7 67.4 18.7 1279 22 49.4 68.2 18.8 1279 23 49.8 68.3 18.5 1381 24 50.9 65.5 14.6 1891 25 50.9 65.5 14.6 1891 26 50.7 65.2 14.5 1891 27 50.5 64.9 14.4 1891 28 50.4 64.6 14.2 1916 29 51.3 62.1 10.8 2486 30 51.9 64.5 12.6 2486 31 50.7 64.7 14.0 2486 MONTHLY AVG 50.0 67.3 17.3 1499 7.8 7.8 7.7 7.9 MONTHLY HIGH 51.9 70.2 18.9 2486 7.8 7.8 7.7 7.9 MONTHLY LOW 48.7 62.1 10.8 1279 7.8 7.8 7.7 7.9 TIMES EXCEEDED NO UMIT NO UMIT MAX 22 =0 MAX 2760= 0 NO UMIT NO UMIT NO UMIT NO UMIT TIMES EXCEEDED

('1 TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

EXCEPT DURING DEMUSSEUNG.

DAILY WHEN DISCHARGING CHEMICAL CLEANING WASTES FROM DISCHARGES 001D, F, 1, 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 FACILITY I.D.

YEAR / MO/ DAY YEAR / MO DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 05 I 01 ENDING 07 / 05 / 31 06 CA0003751 STATION EFFLUENT 003 EFFLUENT 004 EFFLUENTGOIN EFFLUENT001P EFFLUENT003 EFFLUENT 001F EFFLUENT001 EFFLUENT 001 ANALYSIS pH pH OIL & GREASE OIL&GREASE OIL & GREASE OIL & GREASE T CHLOR RES CHLORINE USED UNITS pH UNITS pH UNITS mgfl mgA mg/i mg ug/

bIbday SMPLTYPE GRAB GRAB COMPOSITE GRAB GRAB GRAB GRAB('-)

RECORDED FREQ.

MONTHLY MONTHLY WEEKLY WEEKLY

(")

WEEKLY

()

MONTHLY 2 per CYCLE MONTHLY I

20 209 2

ND(5) 20 216 3

7,9 7.9 3

ND(5) 35 216 4

35 216 5

29 216 6

32 216 7

26 216 8

26 216 9

32 209 10 3 <

5 32 202 11 35 202 12 32 151 13 35 168 14 35 202 15 32 202 16 32 202 17 3

ND(5) 26 134 18 29 202 19 32 202 20 29 202 21 32 216 22 35 230 23 32 250 24 3

5 36 346 25 62 346 26 39 346 27 36 346 28 39 346 29 49 403 30 3

ND(5) 14 461 31 26 465 MONTHLY AVG 7.9 7.9 5

NO NO ND(5) 32 250 MONTHLY HIGH 7.9 7.9 6

DISCHARGE DISCHARGE ND(5) 62 465 MONTHLY LOW 7.9 7.9 ND(5)

ND(5)

<20 134 TIMES EXCEEDED NO UMIT NO UMIT MOAVG 15=0 MOAVG 15=0 MOAVG15=0 MOAVG 15=0 IMAX200=0 NO UMIT 11MES EXCEEDED DMAX20=0 D MAX20=0 D MAX20=0 D MAX20=0 TMES EXCEEDED lwC REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

WHEN 001N IS DISCHARGING TO 001P.

WHEN 001P IS DISCHARGING TO 003.

"* CONTINUOUS CHLORINE MONITORING USED INSTEAD OF 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 Po 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 I MO / DAY STATE CODE NPDES PERMIT/#

3402003001 BEGINNING 07 / 05 / 01 ENDING 07 / 05 / 31 06 CA0003751 STATION EFF 001 N--003 EFF 001N=>003 EFFLUENT 001D EFFLUENT0 01F ANALYSIS TOTL COLIFORM FECAL COLIFORM SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS MPN/100ml MPN/100mI mg/i1 st FLTR mgli 2nd FLTR mg/i NET mg/i1 st FLTR mgl/ 2nd FLTR m9/1 NET SMPLTYPE GRAB GRAB GRAB GRAB FRED.

4 TIMESM/EEK 4 TIMES/WEEK MONTHLY MONTHLY 1

2 1

2 ND(5) 2 2

15 2

1 2

15 3

2

• 2 2

ND(S) 4 5

6 7

2 <

1 2

ND(5) 8 9

3 1

3<

5 10 11 12 13 14 15 16 17 18 2

25 2 <

1 2

25 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG NO NO 5

15 MONTHLY HIGH DISCHARGE DISCHARGE 25 15 MONTHLY LOW ND(5) 15 nMES EXCEEDED 80% SMPLS>IK MEAN>200=

NOUMIT NOUMIT MOAVG3O=0 NOUMIT NOUMIT MOAVG3O=0 TIMES EXCEEDED 90 % SMPLS>400 D MAX 100 = 0 D MAX 100 = 0 TIMES EXCEEDED I MAX >1OK REMARKS:

.NUMBER OF SAMPLES TAKEN DURING THE DAY.

-FLOW-WEIGHTED AVERAGES REPORTED.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 5S 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 4

• FACILITY I.D.

YEAR / MO / DAY YEAR / MO /DAY STATE CODE NPDES PERMIT #

3402003001.

BEGINNING 07 / 05 / 01 ENDING 07 / 05 / 31 06 CA0003751 STATION EFFLUENT001G EFFLUENT001H ANALYSIS SUSPENDED SOLIDS SUSPENDED SOUIDS UNITS mg/i 1st FLTR mg/l 2nd FLTR mgoi NET mg/i 1st FLTR mg/i 2nd FLTR mgil NET SMPL TYPE GRAB GRAB FREQ.

MONTHLY MONTHLY 2

4 4

ND(5) 3 4

5 6

7 8

9 10 11 1

ND(S) 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(S)

ND(5)

MONTHLY LOW ND(5)

ND(5)

TIMES EXCEEDED NO LIMIT NO LIMIT MO AVG 30=0 NO LIMIT NOLIMIT MO AVG 30=0 TIMESEXCEEDED DMAX 10= 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) 5 FACILITY I.D.

YEAR I MO / DAY YEAR / MO/ DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 05 / 01 ENDING 07 I 05 I 31 06 CA0003751 STATION EFFLUENT 0011 EFFLUENT 001J ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS magl 1 st FLTR mg/

1 2nd FLTR mg/l NET mg/l 1st FLTR mgll 2nd FLTR mgl1 NET 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 2

ND(5) 27 28 29 30 31 MONTHLY AVG NO ND(5)

MONTHLY HIGH DISCHARGE ND(5)

MONTHLY LOW ND(5)

TIMES EXCEEDED NO LIMIT NO UMIT MO AVG 30 = 0 NO UMIT NO UMIT MO AVG 30 = 0 TMESEXCEEDED 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, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 6 FACILITY I.D.

YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 05 / 01 ENDING 07 / 05 I 31 06 CA0003751 STATION EFFLUENT 001K EFFLUENT 0011 ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mg/l 1st FLTR mg/i 2nd FLTR mg/i NET mg/i 1stFLTR mg/i 2nd FLTR mg/i NET SMPL1YPE GRAB GRAB FREQ.

MONTHLY MONTHLY 2

1 ND(S) 3 4

5 6

7 8

9 10 1

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

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) 7 FACIULTY I.D.

YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 05 I 01 ENDING 07 / 05 / 31 06 CA0003751 STATION EFFLUENT001M EFFLUENT 001N EFFLUENT001P ANALYSIS SUSPENDED SOLIDS SUSPENDED SLDS SUSPENDED SOLIDS UNITS m/i1 1st FLTR mg/l 2nd FLTR mg/i NET rmg/i mg/i ist FLTR mg/i 2nd FLTR mg/i NET SMPL TYPE GRAB COMPOSITE GRAB FREQ.

MONTHLY WEEKLY MONTHLY 2

3 29 5

1 ND(5) 4 5

6 7

8 9

10 76 11 12 13 14 15 16 17 32 18 19 20 21 22 23 24 49 25 26 27 28 29 30 32 31 MONTHLY AVG NO 44 ND(S)

MONTHLY HIGH DISCHARGE 76 ND(5)

MONTHLY LOW 29 ND(5)

TIMES EXCEEDED NO UMIT NO UMIT MO AVG 30 = 0 MO AVG 60 = 0 NO UMIT NO UMIT MO AVG 30 = 0 TIMES EXCEEDED D MAX 100 = 0 DMAX100 = 0 TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT' CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, 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 07 / 05 / 01 ENDING 07 I 05 / 31 06 CA0003751 STATION EFFLUENT 002 EFFLUENT 003 ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mg/i1 st FLTR mg/i 2nd FLTR mg/i NET mg/i 1st FLTR mg/i 2nd FLTR mg/i NET SMPLTYPE GRAB GRAB FRED.

MONTHLY MONTHLY 1

2 3

2 7

2 1

2 6

2 23 2

1 2

23 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 6

23 MONTHLY HIGH 7

25 MONTHLY LOW 5

20 TMES EXCEEDED NO UMIT NO UMIT MO AVG 30 = 0 NO UMIT NO UMIT MO AVG 30 = 0 1iMES 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) 9 FACIUTY I.D.

YEAR I MO/ DAY YEAR/ MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 05 I 01 ENDING 07 / 05 / 31 06 CA0003751 STATION EFFLUENT003 EFFLUENT001N EFFLUENT001 EFFLUENT001 EFFLUENT001 EFFLUENT 001 ANALYSIS SUSPENDED SOUDS SETrL SOLIDS T CHROMIUM COPPER NICKEL ZINC UNITS mgrl 1st FLTR mi 'l 2nd FLTR m fl1 NET ml1 ug/1 ug/1 ug/1 ugl1 SMPLTYPE GRAB GRAB GRAB GRAB GRAB GRAB FREQ.

WEEKLY WHEN 001N & 0O1P = 003 WEEKLY MONTHLY MONTHLY MONTHLY MONTHLY 2

3 ND(0.1) 4 5

6 7

8 9

10 ND(0.1) 11 NO(10)

ND(1O)

ND(10)

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

ND(10)

ND(10)

ND(10)

ND(10)

MONTHLYHIGH' 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 DMAX 100 = 0 DMAX3.0 = 0 DMAX40 = 0 DMAXS0 = 0 DMAX 100 = 0 DMAX380 = 0 TIMES EXCEEDED IMAX 100=0 IMAXI 140=

I MAX260=0 I MAX990=0 REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION Po BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 1 FACILITY I.D.

YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 1 05 / 01 ENDING 07 / 05 / 31 06 CA0003751 STATION INFLUENT INFLUENT INFLUENT INFLUENT EFFLUENT 001 EFFLUENT 001D EFFLUENT 001G EFFLUENT 001H ANALYSIS T CHROMIUM COPPER NICKEL AMMONIA (N)

AMMONIA (N)

OIL & GREASE OIL & GREASE OIL & GREASE UNITS ug/1 ug/1 ug/1 ug/I ug/1 mg/i mgoi mg/i SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ.

JNAP/JULIOCT JNAP/JULJOCT JNAP/JULJOCT JNAP/JULIOCT JNAP/JULIOCT JNAP/JULIOCT JNAP/JUI.OCT JNAP/JULIOCT 2

3 4

5 6

7 8

9 5

10 11 ND(10)

ND(10)

ND(10) 12 13 14 15 16 17 18 ND(5) 19 20 21 22 23 24 25 26 27 28 29 7

30 31 MONTHLY AVG ND(10)

ND(10)

ND(10) 5 MONTHLY HIGH ND(10)

ND(10)

ND(10) 7 MONTHLY LOW ND(10)

ND(10)

ND(10)

ND(5)

TIMES EXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT 6M-MED 3060 = 0 MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 FiMEs 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.

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) 2 FACILITY I.D.

YEAR/MO/DAY YEAR/MO/DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 07 / 05 / 01 ENDING 07 / 05/ 31 06 CA0003751 STATION EFFLUENT0011 EFFLUENT001J EFFLUENT001K EFFLUENT001L EFFLUENT001M EFFLUENT001P EFFLUENT002 EFFLUENT 003 ANALYSIS OIL & GREASE OIL & GREASE OIL & GREASE OIL & GREASE OIL & GREASE OIL & GREASE OIL & GREASE OIL & GREASE UNITS mg/r mg/i mgti mg/i mg/i mg/l mg/i mg/i SMPLTYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FRED.

JNAP/JUUOCT JA(AP/JULIOCT JNAP/JUUOCT JNAP/JUL/OCT JNAP/JUL/OCT JNAP/JUL/OCT JNAP/JUUOCT JNAP/JULIOCT 2

3 4

5 6

7 8

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

TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD-DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION Po BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 3 FACILITY I.D.

YEAR /MO/ DAY YEAR / MO / DAY STATE,CODE NPDESPERMIT#

3402003001 BEGINNING 07 / 05 / 01 ENDING 07 / 05 1 31 06 CA0003751 STATION EFFLUENT004 EFFLUENT 001 EFFLUENT001D EFFLUENT001H EFFLUENT 001L EFFLUENT 001F ANALYSIS OIL & GREASE TOX CONCEN CADMIUM CADMIUM CADMIUM CADMIUM UNITS mrfl TU ug,/

ug/1 ug,/

ugh1 SMPL TYPE GRAB GRAB QTRLY COMP QTRLY COMP OTRLY COMP I WEEK COMP FREQ.

JNAP/JULIOCT JNAP/JUIJOCT JAJAP/JULJOCT JNAP/JUUOCT JNAP/JUL/OCT JNAP/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 MO AVG 15=0 NO UMIT NO UMIT NO UMIT NO UMIT IMES EXCEEDED DMAX20 = 0 TIMES EXCEEDED 6M-MED 0.26=0 REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAiF '93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 4 FACIULTY ID.

YEAR / MO I DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 1 05 I 01 ENDING 07 / 05 I 31 06 CA0003751 STATION EFFLUENT001D EFFLUENT001H EFFLUENTOOL EFFLUENTOOIF EFFLUENT001O EFFLUENT001H EFFLUENT001L EFFLUENT001F ANALYSIS CHROMIUM T CHROMIUM T CHROMIUM T CHROMIUM COPPER COPPER COPPER COPPER UNITS ugh1 ughl ug/1 ug/1 ug/1 ugH1 ug/1 ug/1 SMPLTYPE OTRLY COMP OTRLY COMP OTRLY COMP 1 WEEK COMP QTRLY COMP QTRLYCOMP OTRLY COMP 1 WEEK COMP FRED.

JAIAP/JUIJOCT JNAP/JUL/OCT JNAP/JUL/OCT JNAP/JULJOCT JNAP/JUL/OCT JAIAP/JUIJOCT JNAP/JULIOCT JNAPIJUL/OCT 2

3 4

5 6

7 8

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

NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (0) 5 FACILITY I.D.

YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 07 / 05 I 01 ENDING 07 / 05 / 31 06 CA0003751 STATION EFFLUENT 001D EFFLUENT 001H EFFLUENT 001L EFFLUENT 001 F EFFLUENT 001D EFFLUENT 001H EFFLUENT 001L EFFLUENT 001 F ANALYSIS LEAD LEAD LEAD LEAD MERCURY MERCURY MERCURY MERCURY UNITS ug1l ug/1 ug/i ug/i ug/1 ugh1 ug(1 ug/h SMPL TYPE GTRLY COMP QTRLY COMP OTRLY COMP 1 WEEK COMP QTRLY COMP OTRLY COMP QTRLY COMP 1 WEEK COMP FREQ.

JNAP/JULIOCT JA(AP/JUUOCT JA(AP/JULIOCT JAMP/JUL/OCT JA.AP/JUUOCT JNAP/JULUOCT JA(AP/JUL/OCT JNAP/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 MES EXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT RMES EXCEEDED TMES 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: (Q) 6 FACILITY I.D.

YEAR / MO/DAY YEAR/MO/DAY STATE CODE NPDES PERMrF#

3402003001 BEGINNING 07 / 05 / 01 ENDING 07 / 05 / 31 06 CA0003751 STATiON EFFLUENTI001D EFFLUENT001H EFFLUENT001L EFFLUENT 001F EFFLUENT001D EFFLUENT001H EFFLUENT001L EFFLUENT001F ANALYSIS NICKEL NICKEL NICKEL NICKEL SILVER SILVER SILVER SILVER UNITS ug/1 ug/1 ug/1 ug/1 ugh1 ugh ug/

ug/1 SMPL TYPE OTRLY COMP QTRLY COMP QTRLY COMP 1 WEEK COMP QTRLY COMP QTRLY COMP QTRLY COMP 1 WEEK COMP FRED.

JNAP/JULIOCT JNAP/JULIOCT JANAP/JUIJOCT JNAP/JULIOCT JNAP/JULIOCT JNAP/JUL/OCT JNAP/JUUOCT JNAP/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 LIMIT NO LIMIT NO LIMIT 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: (0) 7 FACIUTY I.D.

YEAR / MO/ DAY YEAR I MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 07 1 05 I 01 ENDING 07 / 05 / 31 06 CA0003751 STATION EFFLUENT 001D EFFLUENT001H EFFLUENT 001L EFFLUENT001F ANALYSIS ZINC ZINC ZINC ZINC UNITS ug/1 ug/1 ugh1 ug/I SMPLTYPE QTRLY COMP OTRLY COMP QTRLYCOMP 1 WEEK COMP FREQ.

JANAP/JUL/OCT JNAP/JUIJOCT JAIAP/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 1MES EXCEEDED NO LIMIT NO LIMIT NO LIMIT NO LIMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (Q) 8 FACIULTY I.D.

YEAR / MO/ DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 05 / 01 ENDING 07 / 05 I 31 06 CA0003751 STATION EFFLUENT001D EFFLUENT 001F EFFLUENT 0011 EFFLUENT 001L EFFLUENT 001M ANALYSIS COPPER COPPER COPPER COPPER COPPER UNITS mg/i mg/i mg/i mg/1 mg,/

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 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, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (0) 9 FACILITY ID.

YEAR/MO/DAY YEAR /MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 07 / 05 / 01 ENDING 07 / 05 / 31 06 CA0003751 STATION EFFLUENT001D EFFLUENT001F EFFLUENT0011 EFFLUENT001L EFFLUENT001M ANALYSIS IRON IRON IRON IRON IRON UNITS mg/i mg/i mg/i mg/i mg/i SMPL TYPE 24-HR COMP.

24-HR COMP.

24-HR COMP.

24-HR COMP.

24-HR COMP.

FREQ.

METALCLNG METAL CLNG METAL CLNG METALCLNG 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 MOAVGI=0 MOAVGI=0 MOAVG1=0 MOAVG1=0 MOAVG1=0 TIMES EXCEEDED DMAXI =0 DMAX1 =0 DMAX1 =0 DMAX1 =0 OMAX1 =0 TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAAUFORNIA 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 / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 05 I 01 ENDING 07 I 05 I 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 ugh1 ugl ugh ugI ugi1 ugh1 ughl 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 ND(10) 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)

MES EXCEEDED NO UMIT NO UMIT 6M-MED 30 =0 NO UMIT 6M-MED 10 =0 NO UMIT 6M-MED 10 0 NO UMIT IMES EXCEEDED D MAX 150 = 0 DMAX20 = 0 DMAX40 = 0 MES EXCEEDED I MAX400=0 IMAXSO-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 07 / 05 / 01 ENDING 07 / 05 I 31 06 CA0003751 STATION INFLUENT EFFLUENT001 INFLUENT EFFLUENT 001 -

INFLUENT EFFLUENT 001 INFLUENT EFFLUENTO001 ANALYSIS MERCURY MERCURY SILVER SILVER CYANIDE CYANIDE PHENOLIC CMP PHENOLIC CMP UNITS ug/1 ugh1 ug/1 ug/1 ug/1 ug/1 ugh1 (NONCL) ugl1 (NONCL)

SMPLTYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREG.

OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO UMIT 6M-MED 0.2--0 NO UMIT 6M-MED 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 DMAX610=0 TIMES EXCEEDED IMAX 2 = 0 (MAX 35= 0 IMAX 260=0 IMAX 1530=0 REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 58 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 3 FACILITY I.D.

YEAR / MO DAY YEAR / MO I DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 05 1 01 ENDING 07 / 05 I 31 06 CA0003751 STATION INFLUENT EFFLUENT 001 EFFLUENT 001D EFFLUENT 001D EFFLUENT 001D EFFLUENT 005 EFFLUENT 008 ANALYSIS CHLOR PHENOL CHLOR PHENOL LITHIUM BORON HYDRAZINE OIL & GREASE OIL & GREASE UNITS ugl1 ug1 Mgni1 mg/i mg/i mg/i mg/i SMPLTYPE 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 i4 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30' 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW "rMES E(CEEDED NO UMIT 6M-MED 10=0 NO UMIT NO UMIT NO UMIT MO AVG 15--0 MO AVG 15--0 MES EXCEEDED DMAX 20=0 DMAX 20=0 DMAX 20=-0 IMES EXCEEDED IMAX 50=-0 REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

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

YEAR / MO ( DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 05 /01 ENDING 07 / 05 / 31 06 CA0003751 STATION EFFLUENT 009 EFFLUENT013 EFFLUENT015 EFFLUENT016 EFFLUENT017 INFLUENT EFFLUENT 001 ANALYSIS OIL & GREASE OIL & GREASE OIL & GREASE OIL & GREASE OIL & GREASE PCB'S PCBIS UNITS mg/i mg/i mg/i maJi mg/I ug9 ughl SMPLTYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FRED.

OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED MO AVG 15--0 MO AVG 15=0 MO AVG 15=0 MO AVG 15=0 MOAVG15=0 NO UMIT NO UMIT TIMES EXCEEDED DMAX 20=-0 DMAX 20=0 DMAX 20=0 DMAX 20=-0 DMAX2=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) 5 FACIUTY I.D.

YEAR I MO I DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 05 / 01 ENDING 07 / 05 / 31 06 CA0003751 STATION EFFLUENT O01N EFFLUENT001N EFFLUENT001N EFFLUENTO01N EFFLUENTO01N EFFLUENT 001N EFFLUENT001N EFFLUENTO01N ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS MOISTURE TOT KJLDL N

AMMONIA (N)

NITRATE (N)

TOT PHOSPHS pH OIL & GREASE BORON SMPL TYPE mg/kg mg/kg mgokg mg/kg pH units mg/kg mg/kg FRED.

GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 8

9 10 11 12 13 14) 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO 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 OUAL[TY DISCHARGE SELF MONITORING REPORT PACIFIC GAS AND ELECTRIC CO.

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT' CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 6 FACILITY I.D.

YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 07 / 05 / 01 ENDING 07 / 05 / 31 06 CA0003751 STATION EFFLUENT001N EFFLUENT001N EFFLUENT 001N EFFLUENT001N EFFLUENT001N EFFLUENTOIN EFFLUENT001N EFFLUENT001N ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS CADMIUM COPPER CHROMIUM LEAD NICKEL MERCURY ZINC VOLUME SMPLTYPE mnogg mg/kg mglkg mglkg mg/kg mgjkg 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 MONTHILY HIGH MONTHLY LOW TIMES EXCEEDED 1OxSTLC=0 10xSTLC=0 10xSTLC=O 1OxSTLC=O 10xSTLC=O 1OXSTLC=o 10XSTLC=O TIMES EXCEEDED 10 mg/kg=0 250 mgtkg=O 50 mg/kg=0 50 mg/kg=O 200 mg/kg--O 2 mg/kg=0 2500 mg/kg--0 TIMES EXCEEDED TTLC>100=0 rrLC>2500=-o TTLC>50=0 TILC>1000=0 TTLC>2000=O TTLC>20DO TTLC>5000=0 REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

APPENDIX 4 DIABLO. CANYON POWER PLANT Influent and Effluent Monitoring June 2007

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 FACIUITY.D.

YEAR/MO/DAY YEAR/MO/DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 06 / 01 ENDING 07 / 06 / 30 06 CA0003751 STATION INFLUENT EFFLUENIT001 DELTATEMP EFFLUENT001 INFLUENT EFFLUENT 001 EFFLUENT001P EFFLUENT002 ANALYSIS TEMPERATURE TEMPERATURE TEMPERATURE FLOW pH pH pH pH UNITS DEGREES F DEGREES F DEGREES F MGD pH UNITS pH UNITS pH UNITS pH UNITS SMPL TYPE METERED METERED METERED RECORDED GRAB GRAB GRAB GRAB FREQ.

CONTINUOUS CONTINUOUS CONTINUOUS DAILY MONTHLY MONTHLY

(-)

MONTHLY MONTHLY 1

50.2 66.5 16.3 2486 7.8 7.8 2

7.6 2

7.9 2

50.5 68.4 17.9 2486 3

51.0 69.2 18.2 2486 4

51.0 69.2 18.2 2486 5

51.1 69.2 18.1 2486 6

50.6 68.9 18.3 2486 7

50.1 68.4 18.3 2486 8

50.2 68.6 18.4 2486 9

49.8 68.0 18.2 2486 10 49.9 68.0 18.1 2486 11 51.3 69.2 17.9 2486 12 52.1 70.2 18.1 2486 13 52.6 70.9 18.3 2486 14 52.8 71.4 18.6

.2486 15 54.7 73.4 18.7 2486 16 53.4 71.9 18.5 2486 17 52.1 70.2 18.1 2486 18 52.4 70.6 18.2 2486

19.

54.7 73.3 18.6 2486 20 53.8 72.4 18.6 2486 21 51.4 69.9 18.5 2486 22 50.5 68.8 18.3 2486 23 50.0 68.3 18.3 2486 24 50.4 68.5 18.1 2486 25 49.9 68.0 18.1 2486 26 51.2 69.1 17.9 2486 27 50.2 68.7 18.5 2486 28 49.7 68.0 18.3 2486 29 49.3 67.5 18.2 2486 30 49.8 68.0 18.2 2486 31 MONTHLY AVG 51.2 69.4 17.6 2486 7.8 7.8 7.6 7.9 MONTHLY HIGH 54.7 73.4 18.7 2486 7.8 7.8 7.6 7.9 MONTHLY LOW 49.3 66.5 16.3 2486 7.8 7.8 7.6 7.9 TIMES EXCEEDED NO UMIT NO UMIT MAX 22 =0 MAX 2760 =0 NO UMIT NO UMIT.

NO UMIT NO UMIT TIMES EXCEEDED

(**)

TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

EXCEPT DURING DEMUSSEUNG.

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

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT' CENTRAL COAST REGION Po BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO-CA 93401 PAGE: (M) 2 FACILITY I.D.

YEAR / MO /DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 06 / 01 ENDING 07 / 06 I 30 06 CA0003751 STATION EFFLUENT 003 EFFLUENT004 EFFLUENT001N EFFLUENT001P EFFLUENT 003 EFFLUENT001F EFFLUENT001 EFFLUENT001 ANALYSIS pH pH OIL & GREASE OIL & GREASE OIL & GREASE OIL & GREASE T CHLOR RES CHLORINE USED UNITS pH UNITS pH UNITS mg/A mgiA mg/I mg/i ugA Ibstday SMPL TYPE GRAB GRAB COMPOSITE GRAB GRAB GRAB GRAB I.)

RECORDED FREQ.

MONTHLY MONTHLY WEEKLY WEEKLY

(')

WEEKLY I I)

MONTHLY 2 pe CYCLE MONTHLY 1

7.8 7.8 ND(5) 23 490 2

18 490 3

12 490 4

15 494 5

23 518 6

26 518 7

34 518 8

3 ND(5) 31 504 9

28 504 10 28 504 11 25 504 12 23 504 13 28 504 14 3

ND(5) 31 504 15 23 504 16 20 504 17 22 504" 18 23 504 19 18 504 20 16 504 21 3

ND(S) 21 502

22.

23 490 23 26 475 24 23 475 25 26 461 26 21 446 27 3

ND(5) 28 446 28 31 446 29 34 446 30 34 446 31 MONTHLY AVG 7.8 7.8 ND(5)

NO NO ND(5) 25 490 MONTHLY HIGH 7.8 7.8 ND(5)

DISCHARGE DISCHARGE.

ND(5) 34 518 MONTHLY LOW 7.8 7.8 ND(5)

ND(5) 12 446 TIMES EXCEEDED NO LIMIT NO LIMIT MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 I MAX200=0 NO LIMIT TIMES EXCEEDED D MAX 20 = 0 D MAX 20 = 0 D MAX 20 = 0 D MAX20=0 TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

WHEN OD1N IS DISCHARGING TO 00P.

-WHEN 001P IS DISCHARGING TO 003.

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

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

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

YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 06 / 01 ENDING 07 / 06 / 30 06 CA0003751 STATION EFF 001N=>003 EFF001N=O003 EFFLUENT001D EFFLUENT O0 1F ANALYSIS TOTL COUFORM FECAL COUFORM SUSPENDED SOUDS SUSPENDED SOLIDS UNITS MPNlIoord MPN/1COmi mg/lst FLTR mg/1 2nd FLTR mg/I NET mrg/ 1st FLTR mg/1 2nd FLTR mg/I NET SMPL TYPE GRAB GRAB GRAB GRAB FREG.

4 TIMES&WEEK 4 TIMESIWEEK MONTHLY MONTHLY 1

2 2

2 ND(5) 2 13 2<

1 2

13 2

3 4

2 1

2 ND(5)

• 5 2

1 2

ND(5) 6 7

8 10 11 12 13 1

ND(5) 14 15 16 17 18 2

32 2 <

1 2

33 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG NO NO 5

13 MONTHLY HIGH DISCHARGE DISCHARGE 34 13 MONTHLY LOW ND(5) 13 TIMES EXCEEDED 80% SMPLS>1K MEAN>200=

NOUMIT NOUMIT MOAVG30=0 NOUMIT NOUMIT MOAVG30=0 TIMES EXCEEDED 90 % SMPLS>400 D MAX 100 =0 D MAX 100 = 0 TIMES EXCEEDED I MAX >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 FACILITY I.D.

YEAR I MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 07 / 06 / 01 ENDING 07/ 06 / 30 06 CA0003751 STATION EFFLUENT001G EFFLUENTOO1H ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mg/i 1st FLTR mg/i 2nd FLTR mg/i NET mg/i 1st FLTR mg/i 2nd FLTR mg/i NET SMPLTYPE GRAB GRAB FREC.

MONTHLY MONTHLY 1

1 ND(5) 2 1

ND(5) 3 4

5 6

7 8

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

ND(5)

MONTHLY HIGH ND(5)

ND(S)

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 DMAX100= 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, SU[TE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 5 FACIULTY I.D.

YEAR / MO/ DAY YEAR / MO/ DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 06 I 01 ENDING 07 / 06 I 30 06 CA0003751 STATION EFFLUENT0011 EFFLUENT001J ANALYSIS SUSPENDED SOLIDS SUSPENDED SOLIDS UNITS mg/i 1st FLTR mg/i 2nd FLTR mg/1 NET mgI 11st FLTR m91i 2nd FLTR mg/i NET 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 UMIT NO UMIT MOAVG 30=0 NO UMIT NO UMIT MOAVG 30=0 TIMES EXCEEDED MAX 100 = 0 MAX 100 = 0 11MES 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 FACIlTY I.D.

YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 06 1 01 ENDING 07 / 06 I 30 06 CA0003751 STATION EFFLUENTi001K EFFLUENTOOIL ANALYSIS SUSPENDED SOUDS SUSPENDED SOLIDS UNITS mrg/ 1st FLTR mg/i 2nd FLTR mg/i NET mg/i 1st FLTR 1g/i 2nd FLTR mg/i NET SMPLTYPE GRAB GRAB FRED.

MONTHLY MONTHLY 1

2 <

1 2

ND(5) 2 3

4 5

6 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(S)

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) 7 FACILITY I.D.

YEAR / MO ? DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 07 / 06 / 01 ENDING 07 / 06 / 30 06 CA0003751 STATION EFFLUENT 001M EFFLUENT 001N EFFLUENT 001P ANALYSIS SUSPENDED SOLIDS SUSPENDED SLDS SUSPENDED SOLIDS UNITS mg/l 1st FLTR mgol 2nd FLTR mg/i NET mg/I mg/i 1st FLTR mg/i 2nd FLTR mg/I NET SMPLTYPE GRAB COMPOSITE GRAB FRED.

MONTHLY WEEKLY MONTHLY 1

3 1

ND(5) 2 3

4 5

6 7

8 58 9

10 11 12 13 14 12 15 16 17 18 19 20 21 55 22 23 24 25 26 27 7

28 29 30 31 MONTHLY AVG NO 33 ND(5)

MONTHLY HIGH DISCHARGE 58 ND(5)

MONTHLY LOW

.7 ND(5)

TIMES EXCEEDED NO UMIT NO UMIT MO AVG 30 = 0 MO AVG 60 0

NO UMIT NO UMIT MO AVG 30 = 0 TIMES EXCEEDED D MAX 100 = 0 D MAX 100 = 0 TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (M) 8 FACILITY I.D.

YEAR /MO /DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 06 / 01 ENDING 07 / 06 / 30 06 CA0003751 STATION EFFLUENT 002 EFFLUENT 003 ANALYSIS SUSPENDED SOUDS SUSPENDED SOLIDS UNITS mg/i 1stFLTR mg/I 2nd FLTR mg/i NET mg/i 1st FLTR mg/I 2nd FLTR mg/i NET SMPL TYPE GRAB GRAB FREQ.

MONTHLY MONTHLY 1

2 1

2<

1 2

ND(5) 2 7

2 1

2 6

2 3

4 5

6 7

8 2

4 2

1 2

ND(5) 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) 5 MONTHLY HIGH ND(5) 7 MONTHLY LOW ND(5)

ND(5)

TIMES EXCEEDED NO LIMIT NO LIMIT MO AVG 30 = 0 NO LIMIT NO LIMIT MO AVG 30 = 0 TIMES EXCEEDED D MAX 100 = 0 D MAX 100 = 0 IMES 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 FACILITY I.D.

YEAR / MO / DAY YEAR/ MO/DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 06 1 01 ENDING 07 / 06 / 30 06 CA0003751 STATION EFFLUENT003 EFFLUENT001N EFFLUENT 001 EFFLUENT 001 EFFLUENT001 EFFLUENT 001 ANALYSIS SUSPENDED SOLIDS SE'TLSOLIDS TCHROMIUM COPPER NICKEL ZINC UNITS mg/1 Ist FLTR mg/l 2nd FLTR mg/i NET mWI ugh ug/I ughi ug/I SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB FRED.

WEEKLY WHEN 001N & 001 P 003 WEEKLY MONTHLY MONTHLY MONTHLY MONTHLY ND(10)

ND(10)

ND(10)

ND(10) 2 3

4 5

6 7

8 0.1 9

10 11 12 13 14 ND(0.1)*

15 16 17 18 19 20 21 3.9"*

22 23 24 25 26 27 ND(0.1) 28 29 30 31 MONTHLY AVG NO 1.0 ND(10)

ND(10)

ND(10)

ND(10)

MONTHLYHIGH DISCHARGE 3.9 ND(10)

ND(10)

ND(10)

ND(10)

MONTHLY LOW ND(0.1)

ND(10)

ND(10)

ND(10)

ND(10)

FIMES 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 MESEXCEEDED DMAX100 = 0 DMAX3.0= 1 DMAX40 = 0 DMAX50 = 0 DMAX100 = 0 D MAX380 = 0 MEN EXCEEDED IMAX100=0 IMAX 140=0 IMAX260=0 IMAX990=0 REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

ANALYSIS NOT PERFORMED WITHIN 48-HOUR MAXIMUM HOLD TIME. REFERENCE REPORT OVERVIEW SECTION 5.

SETTLEABLE SOUDS EXCEEDANCE. REFERENCE REPORT OVERVIEW SECTION 6.

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 FACILITY I.D.

YEAR /MO /DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3 402003001 BEGINNING 07 / 06 / 01 ENDING 07 / 06 / 30 06 CA0003751 STATION INFLUENT INFLUENT INFLUENT INFLUENT EFFLUENT001 EFFLUENTOOD EFFLUENTOGiG EFFLUENTO1H ANALYSIS TCHROMIUM COPPER NICKEL AMMONIA(N)

AMMONIA(N)

OIL&GREASE OIL&GREASE OIL&GREASE UNITS ug/1 ugh/

ug/1 ugYl ug/1 mg/i mg/i mg/i SMPLTYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB-FREQ.

JAAP/JUL/OCT JNAP/JUL/OCT JANAP/JULIOCT JNAP/JULJOCT JNAP/JUL/OCT JNAP/JUILOCT JNAP/JUL/OCT JNAP/JUIJOCT 1

ND(10)

NDO(10)

ND(10) 2 3

4 5

6 7

8 9

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

ND(10)

ND(10)

ND(5)

MONTHLY HIGH ND(10)

ND(10)

ND(10)

ND(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 MOAVG 15=0 MOAVG 15=0 MOAVG 15=0 TIMESEXCEEDED DMAX12240 0

DMAX20 =0 DMAX20 0

DMAX20 0

TIMES EXCEEDED I MAX 30600 = 0 REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

CAUFORNIA REGIONAL WATER QUALITY 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) 2 FACILITY I.D.

YEAR / MO / DAY YEAR / MO ( DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 06 I 01 ENDING 07 / 06 I 30 06 CA0003751 STATION EFFLUENT0011 EFFLUENT001J EFFLUENT 001K EFFLUENTDOIL EFFLUENT001M EFFLUENT001P EFFLUENT 002 EFFLUENT003 ANALYSIS OIL&GREASE OIL & GREASE OIL&GREASE OIL&GREASE OIL&

GREASE OIL&GREASE OIL&GREASE OIL & GREASE UNITS mg/a mg/I mg/i mg/i mgil mg/i mg/i mgfl SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ.

JANAP/JULIOCT JA/AP/JUUOCT JANAP/JU./OCT JNAP/JUL/OCT JNAPIJULIOCT JA/AP/JUL/OCT JNAP/JULJOCT JNAP/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 ND(5) 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 TMESEXCEEDED DMAX20=0 DMAX20=0 DMAX20=0 DMAX20=0 DMAX20=0 DMAX20=0 DMAX20=0 DMAX20=0 TMES 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: (Q) 3 FACILITY I.D.

YEAR I MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3 402003001 BEGINNING 07 1 06 / 01 ENDING 07 1 06 / 30 06 CA0003751 STATION EFFLUENT004 EFFLUENT001 EFFLUENT001D EFFLUENT001H EFFLUENTOOL EFFLUENT001F ANALYSIS OIL & GREASE TOX CONCEN CADMIUM CADMIUM CADMIUM CADMIUM UNITS m91 TU ug/1 ugl1 ugl ug/1 SMPL TYPE GRAB GRAB QTRLY COMP QTRLY COMP OTRLY COMP 1 WEEK COMP FREQ.

JNAP/JU!.OCT JANAP/IJUUOCT JNAP/JUL/OCT JNAPIJULJOCT JNAP/JULOCT JNAP/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 MO AVG 15 = 0 NO UMIT NO UMIT NO UMIT NO UMIT TIMES EXCEEDED DMAX20 = 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 56 898 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 07 / 06 / 01 ENDING 07 / 06/ 30 06 CA0003751 STATION EFFLUENT O01D EFFLUENTO01H EFFLUENTGOIL EFFLUENTO01F EFFLUENT O01D EFFLUENTO01H EFFLUENT O01L EFFLUENT0O01F ANALYSIS CHROMIUM T CHROMIUM T CHROMIUM T CHROMIUM COPPER COPPER COPPER COPPER UNITS ug/1 ug 1 ug/1 ugl1 ug /1 ug/1 ug/1 ug/1 SMPLTYPE QTRLY COMP QTRLYCOMP QTRLYCOMP 1 WEEK COMP QTRLY COMP OTRLY COMP OTRLY COMP I WEEK COMP FRED.

JNAPIJUUOCT JANAP/JUL/OCT JNAPIJUIJOCT JNAPIJUL/OCT JNAP/JUUOCT JNAP/JULUOCT JNAP/JULIOCT JNAP/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 TIMES EXCEEDED NO LIMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT NO UMIT 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: (Q) 5 FACILITY I.D.

YEAR I MO I DAY YEAR / MO I DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 06 / 01 ENDING 07 / 06 I 30 06 CA0003751 STATION EFFLUENT001D EFFLUENT001H EFFLUENT001L EFFLUENT001F EFFLUENT001D EFFLUENT001H EFFLUENT001L EFFLUENT001F ANALYSIS LEAD LEAD LEAD LEAD MERCURY MERCURY MERCURY MERCURY UNITS ugl1 ug/1 ug/1 ug/1 ugl1 ugt1 ug/1 ugt1 SMPLTYPE GTRLYCOMP OTRLYCOMP OTRLYCOMP 1 WEEKCOMP QTRLY COMP QTRLYCOMP QTRLYCOMP 1 WEEKCOMP FREQ.

JNAP/JUUOCT JA(APIJUIJOCT JNAP/JULIOCT JNAP/JULIOCT JNAP/JULIOCT JNAP/JUIJOCT JA/AP/JULJOCT JNAP/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 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: (0) 6 FACILITY I.D.

YEAR / MO / DAY YEAR I MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 06 I 01 ENDING 07 / 06 / 30 06 CA0003751 STATION EFFLUENT001D EFFLUENT001H EFFLUENT0011 EFFLUENTE001F EFFLUENT001D EFFLUENT001H EFFLUENTCO01L EFFLUENT001F ANALYSIS NICKEL NICKEL NICKEL NICKEL SILVER SILVER SILVER SILVER UNITS ugl1 ug/1,

u/1 ugh1 ug/1 ug/1 ug/1 ug/1 SMPLTYPE QTRLY COMP QTRLY COMP QTRLY COMP 1 WEEK COMP QTRLY COMP OTRLY COMP QTRLY COMP I WEEK COMP FREQ.

JNAPIJUUOCT JANAP/JULUOCT JNAP/JUUOCT JNAP/JUUOCT JNAP/JUULOCT JNAP/JUUOCT JNAP/JUIJOCT JNVAP/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 LIMIT NO UMIT NO UMIT NO LIMIT 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 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (Q) 7 FACILITY I.D.

YEAR / MO DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3 402003001 BEGINNING 07 / 06 / 01 ENDING 07 / 06 / 30 06 CA0003751 STATION EFFLUENTO01D EFFLUENTO01H EFFLUENTO01L EFFLUENTO01F ANALYSIS ZINC ZINC ZINC ZINC UNITS ug'1 ug/1 uVI ugg SMPL TYPE QTRLY COMP QTRLY COMP QTRLY COMP 1 WEEK COMP FREQ.

JNAP/JULOCT JNAp/IJUL/OCT JAIAPIJULJOCT JNAP/JUL/OCT 2

3 4

6 7

8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO UMIT NO UMIT NO UMIT NO UMIT TIMES EXCEEDED TIMES EXCEEDED REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION PO BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (0) 8 FACIUTY ID.

YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT#

3402003001 BEGINNING 07 / 06 / 01 ENDING 07 1 06 / 30 06 CA0003751 STATION EFFLUENT001D EFFLUENT001F EFFLUENT0011 EFFLUENT001L EFFLUENT001M ANALYSIS COPPER COPPER COPPER COPPER COPPER UNITS mg/i mg/i mg/i mg/i mg/i SMPL TYPE 24-HR COMP.

24-HR COMP.

24-HR COMP.

24-HR COMP.

24-HR COMP.

FREO.

METALCLNG METAL CLNG METAL CLNG METAL CING 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 1

1 1 MONTHLYAVG NO NO NO NO NO MONTHLY HIGH DISCHARGE DISCHARGE DISCHARGE DISCHARGE DISCHARGE MONTHLY LOW 11MES EXCEEDED MOAVG 1 = 0 MOAVG 1 =0 MOAVG 1 =0 MOAVG 1 =0 MOAVG 1 =0 TIMES EXCEEDED DMAXI =0 DMAXI =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, 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 07 / 06 / 01 ENDING 07 / 06 / 30 06 CA0003751 STATION EFFLUENT001D EFFLUENT001F EFFLUENT 0011 EFFLUENT001i EFFLUENT001M ANALYSIS IRON IRON IRON IRON IRON UNTS mg/I1 mg/i mg/1 mgi mail SMPLTYPE 24-HR COMP.

24-HRCOMP.

24-HR COMP.

24-HR COMP.

24-HRCOMP.

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 MONTHLYAVG NO NO NO NO NO MONTHLY HIGH DISCHARGE DISCHARGE DISCHARGE DISCHARGE DISCHARGE MONTHLY LOW IMESEXCEEDED MOAVG 1 =0 MOAVG 1 =0 MOAVG 1 =0 MOAVG 1 =0 MOAVG 1 =0 MESEXCEEDED DMAX1 =0 DMAX1 =0 DMAX1 =0 DMAXI =0 OMAX1 =0 RIMES EXCEEDED REMARKS:

NUMBER oF SAMPLES TAKEN DURING ThE DAY.

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

CONTROL BOARD DIABLO CANYON NUCLEAR POWER PLANT CENTRAL COAST REGION P0 BOX 56 895 AEROVISTA PLACE, SUITE 101 AVILA BEACH, CAUF 93424 SAN LUIS OBISPO. CA 93401 PAGE: (A) 1 FACIUTY I.D.

YEAR / MO I DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 06 / 01 ENDING 07 / 06 / 30 06 CA0003751 STATION EFFLUENT 001 INFLUENT EFFLUENT INFLUENT EFFLUENT001 INFLUENT EFFLUENT001 INFLUENT ANALYSIS TITANIUM ARSENIC ARSENIC CADMIUM CADMIUM LEAD LEAD ZINC UNITS ug/1 ug/1 ug/1 ug/1 ugi1 ugi1 ugt1 ug/1 SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB FREQ.

OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 1

ND(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(10)

MONTHLY HIGH ND(10)

MONTHLY LOW ND(10)

TIMES EXCEEDED NO UMIT NO UMIT 6M-MED 30 = 0 NO UMIT 6M-MED 10 =

NO UMIT 6M-MED 10 =0 NO UMIT 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.

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 07 / 06 / 01 ENDING 07 / 06 ! 30 06 CA0003751 STATION INFLUENT EFFLUENT 001 INFLUENT EFFLUENT001 INFLUENT EFFLUENT001 INFLUENT EFFLUENT 001 ANALYSIS MERCURY MERCURY SILVER SILVER CYANIDE CYANIDE PHENOLIC CMP PHENOLIC CMP UNITS ugl1 ugh ugh1 ug/1 ug/1 ug/1 ug,/ (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 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 nMES EXCEEDED IMAX2=0 IMAX 35= 0 IMAX 260=0 IMAX 1530=O 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 OBISPOT CA 93401 PAGE: (A) 3 FACILITY I.D.

YEAR/ MO / DAY YEAR / MO/ DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 06 1 01 ENDING 07 / 06 / 30 06 CA0003751 STATION INFLUENT EFFLUENT001 EFFLUENT001D EFFLUENT001D EFFLUENT O01D EFFLUENT005 EFFLUENT008 ANALYSIS CHLOR PHENOL CHLOR PHENOL LITHIUM BORON HYDRAZINE OIL & GREASE OIL & GREASE UNITS ug/1 ugl mrg/1 mg/I mg/i mg,/

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 IMAX 500 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) 4 FACILITY.I.D.

YEAR / MO / DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 06 1 01 ENDING 07 / 06 / 30 06 CA0003751 STATION EFFLUENT009 EFFLUENT,013 EFFLUENT015 EFFLUENT016 EFFLUENT017 INFLUENT EFFLUENT001 ANALYSIS OIL & GREASE OIL & GREASE OIL&GREASE OIL&GREASE OIL&GREASE PCB'S PCB'S UNITS mgl mg/1 mgi mrg/i mg/i ug1 ug/

SMPL TYPE GRAB GRAB GRAB GRAB GRAB GRAB GRAB FRED.

OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED MO AVG 15=0 MO AVG 15=0 MO AVG 15=0 MOAVG 15=0 MOAVG15=0 NO LIMIT 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.

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) 5 FACILITY I.D.

YEAR/MO/DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 07 / 06 / 01 ENDING 07 / 06 / 30 06 CA0003751 STATION EFFLUENT ODIN EFFLUENT0OIN EFFLUENT001N EFFLUENT001N EFFLUENTODIN EFFLUENTOIN EFFLUENT O0IN EFFLUENT"O0N ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS MOISTIUJRE TOT KJLDL N

AMMONIA (N)

NITRATE (N)

TOT PHOSPHS pH OIL&GREASE BORON SMPL TYPE mgkg mg/g mG/kg gn.kg pH units m9n4g mkg FREQ.

GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER OCTOBER 2

3 4

.5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LIMIT NO LMIT 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, CALIF 93424 SAN LUIS OBISPO, CA 93401 PAGE: (A) 6 FACILITY I.D.

YEAR /MO /DAY YEAR / MO / DAY STATE CODE NPDES PERMIT #

3402003001 BEGINNING 071 06 / 01 ENDING 07 f 06 1 30 06 CAO=O7351 STATION EFFLUENT 001N EFFLUENT001N EFFLUENT001N EFFLUENT001N EFFLUENT001N EFFLUENT001N EFFLUENTO1N EFFLUENT001N ANALYSIS SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE SLUDGE UNITS CADMIUM COPPER CHROMIUM LEAD NICKEL MERCURY ZINC VOLUME SMPL TYPE mgnJg mgr1g mg/kg moJg gftg nm/kg mgfkg tons FREQ.

GRAB GRAB GRAB GRAB GRAB GRAB GRAB OCTOBER 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 20 21 22 23 24 25 26 27 28 29 30 31 MONTHLY AVG MONTHLY HIGH MONTHLY LOW TIMES EXCEEDED 10xSTLC=0 10xSTLC=O 10xSTLC=O 10xSTLC=0 10xSTLC=0 10xSTLC=-

10xSTLC=0 TIMES EXCEEDED 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=O TIMES EXCEEDED TTLC>100=0 TrLC>2500=0 TTLC>500=0 TTLC>1000=0 TTLC>2000=,

T1LC>20=0 TTLC>,OOO=

REMARKS:

NUMBER OF SAMPLES TAKEN DURING THE DAY.

PINCIPAL EXECUIOFFICER fiJAERBECKER

APPENDIX 5 DIABLO CANYON POWER PLANT Acute Bioassay April 26-30, 2007

"-B IOASSAY &

C CONSULTING SLABORATORIES, INC.

TOXICITY TESTING o OCEANOGRAPHIC RESEARCH May 8, 2007 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:

SAMPLE I.D.:

DATE RECEIVED:

ABC LAB. NO.:

PG&E Diablo Canyon PG&E Diablo Canyon-DCPP Discharge 001 Acute 25 April - 07 FGL0407.248 ACUTE ABALONE SURVIVAL BIOASSAY LC50 =

TUa 100 % Survival in 100 % Sample 0.00 Your very truly, Thomas (Tim) Mik1",)

Laboratory Director 29 NORTH OLIVE STREET, VENTURA, CA 93001 0 (805) 643-5621

-96 Hr Survival Start Date:

4/26/2007-Test ID: FGL0407248 Sample ID:

CAOOGOQO0 End Date:

4/30/2007 Lab ID:

CAABC Sample Type:

EFF3-Power Plant Sample Date: 4/25/2007 Protocol: KOP 76-Kopperdahl Test Species:

HR-Haliotis rufescens Comments:

DCPP Discharge 001 Acute (704434)

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 IC15 IC20 IC25 IC40 IC50

>100

>100

>100

>100

>100

>100 1.0 0.9-0.8-0.7.

0.6-U)LC 0.5 I*0.4-0.3-0.2.

0.1.

0.0 0

50 100 Dose %

150 y

Page 1 ToxCalC v5.0.23 Reviewed by:

L,

-96 Hr Survival Start Date:

4/26/2007 Test ID:

FGL0407248 Sample ID:

CA0000000 End Date:

4/30/2007 Lab ID:

CAABC Sample Type:

EFF3-Power Plant Sample Date: 4/25/2007 Protocol: KOP 76-Kopperdahl Test Species:

HR-Haliotis rufescens Comments:

DCPP Discharge 001 Acute (704434)

Dose-Response Plot 1

0.9 0.8 0.7 0.6 0.5

" 0.4 C~o a) 0.3 0.2 0.1 n

75 r-)

z 00

\\K Page 2 ToxCalc v5.0.23 Reviewed by:_6__

-96 Hr Survival Start Date:

4/26/2007 Test ID:

FGL0407248 Sample ID:

CAOOOOOOO End Date:

4/30/2007 Lab ID:

CAABC Sample Type:

EFF3-Power Plant Sample Date: 4/25/2007 Protocol: KOP 76-Kopperdahl Test Species:

HR-Haliotis rufescens Comments:

DCPP Discharge 001 Acute (704434)

Conc-%

Parameter N Control Temp C 100 N Control pH 100 N Control DO mg/L 100 N Control Salinity ppt 100 N Control 100 N Control 100

" Auxiliary Data Summary Mean Min Max SD CV%/

0 N

15.26 15.10 15.50 0.12 2.25 10 15.30 15.10 15.50 0.15 2.52 10 7.79 7.70 7.90 0.07 3.49 10 7.75 7.60 7.90 0.12 4.43 10 7.89 7.60 8.10 0.19 5.46 10 7.86 7.70 8.20 0.20 5.63 10 34.00 34.00 34.00 0.00 0.00 10 35.00 35.00 35.00 0.00 0.00 10 0.00 0.00 0.00 0.00 0

0.00 0.00 0.00 0.00 0

0.00 0.00 0.00 0.00 0

0.00 0.00 0.00 0.00 0

Page 3 ToxCalc v5.0.23 Reviewed by: lcr\\

Subcontract Chain of Custody CLIENT DETAILS:

Client:

FGL Environmental Address: 853 Corporation Street Santa Paula, CA 93061 Phone:

(805) 659-0910 Fax: (805) 525-4172 Project:

f-oý!4M Contact Person:

REPORT INFORMATION:

Rush Analysis: 0 5 days E3 4 days 0J 3 days C3 2 days 0 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> Electronic Data Transfer: YES / NO If yes, To: State Client Other REMARKS:

SAMPLING:

Sanmpler(s)

T-Y-I-I-~-

V Cd V

E 0

a../

E, 0

U 0.u 5

0 o 0c r

E U

lU

.0 44 0

4)

.-~

o >g 27 o C 0

~0 C/

-J

(/

0 Zo t'j

'0 0.~

4j CY z

4-1/4>

,JI p

1 Sample Number Location/Description Date Sampled Time Sampled SCUSTODY:

Relinquished by:

Date: J4L Time:

toI Relinquished by:

Date; Time:_ ___

Receivd by:Date:

r' Time: ~

Received by:-______________

Date:_____Tie_____

APPENDIX 6 DIABLO CANYON POWER PLANT Chronic Bioassay April 26-28, 2007

,QUATIC I.OASSAY. &

ýONSULTING r

LABORATORIES, INC.

RECEIVED MNA 2 4 '1,S.

ENV. OPS.

TOXICITY TESTING

• OCEANOGRAPHIC RESEARCH May 8, 2007 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:

SAMPLE I.D.:

DATE RECEIVED:

ABC LAB. NO.:

PGE Diablo Canyon PGE Diablo Canyon -DCPP Discharge 001 Chronic 25 April - 07 FGL0407.247 CHRONIC ABALONE LARVAL DEVELOPMENT BIOASSAY NOEC=

IC25 IC50 100.00%

1.00

>100.00 %

>100.00 %

Yours ery truly, Thomas (Timr) Mikre Laboratory Director 29 NORTH OLIVE STREET, VENTURA, CA 93001 ° (805) 643-5621

Abalone Larval Development Test-Proportion Normal Start Date:

4/26/2007 Test ID: FGL0407247 Sample ID:

CAOOOOOOO End Date:

4/28/2007 Lab ID:

CAABC Sample Type:

EFF1-POTW Sample Date: 4/25/2007 Protocol: MBP 90-Anderson et al.

Test Species:

HR-Haliotis rufescens Comments:

DCPP Discharge 001 Chronic (704434)

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 (I-tail, 0.05)

NOEC LOEC ChV TU Steel's Many-One Rank Test 100

>100 1

Treatments vs N Control Linear Interpolation (200 Resampies)

Point SD 95% CL(Exp)

Skew IC05 IC1 0 ICI 5 IC20 IC25 IC40 IC50

>100

>100

>100

>100

>100

>100

>100 1.0 0.9.

0.8-0.7-0.6-0.4 0.3-0.2-0.1 0.0 0

50 100 150 Dose %

Page 1 ToxCalc v5.0.23 Reviewed by:_-

Abalone Larval Development Test-Proportion Normal Start Date:

4/26/2007 Test ID:

FGL0407247 Sample ID:

CA00Q0000 End Date:

4/28/2007 Lab ID:

CAABC Sample Type:

EFFI-POTW Sample Date: 4/25/2007 Protocol: MBP 90-Anderson et al.

Test Species:

HR-Haiiotis rufescens Comments:

DCPP Discharge 001 Chronic (704434)

Dose-Response Plot 0.9 0.8 0.7 o 0.6 z

0.5 o 0.4 0 o0.3 0.2 0.1 0

r 0

-)

z 0

oO N,

C0 00 Page 2 ToxCalc v5.0.23 Reviewed by:._'

Abalone Larval Development Test-Proportion Normal Start Date:

4/26/2007 Test ID:

FGL0407247 Sample ID:

CA0000000 End Date:

4/28/2007 Lab ID:

CAABC Sample Type:

EFF1-POTW Sample Date: 4/25/2007 Protocol: MBP 90-Anderson et al.

Test Species:

HR-Haliotis rufescens Comments:

DCPP Discharge 001 Chronic (704434)

Auxiliary Data Summary Conc-%

Parameter N Control Temp C 10 18 32 56 100 N Control pH 10 18 32 56 100 N Control DO mg/L 10 18 32 56 100 N Control Salinity ppt 10 18 32 56 100 Mean 15.50 15.50 15.50 15.50 15.40 15.15 7.90 7.90 7.90 7.90 7.90 7.90 6.40 6.30 6.30 6.25 6.25 6.05 34.00 34.00 34.00 34.00 34.00 34.00 Min 15.50 15.50 15.50 15.50 15.30 14.80 7.90 7.90 7.90 7.90 7.90 7.90 5.90 5.70 5.70 5.60 5.50 5.00 34.00 34.00 34.00 34.00 34.00 34.00 Max 15.50 15.50 15.50 15.50 15.50 15.50 7.90 7.90 7.90 7.90 7.90 7.90 6.90 6.90 6.90 6.90 7.00 7.10 34.00 34.00 34.00 34.00 34.00 34.00 Auxiliary Data Summary SD CV%

N 0.00 0.00 2

0.00 0.00 2

0.00 0.00 2

0.00 0.00 2

0.14 2.44 2

0.49 4.64 2

0.00 0.00 2

0.00 0.00 2

0.00 0.00 2

0.00 0.00 2

0.00 0.00 2

0.00 0.00 2

0.71 13.14 2.

0.85 14.62 2

0.85 14.62 2

0.92 15.34 2

1.06 16.48 2

1.48 20.14 2

0.00 0.00 2

0.00 0.00 2

0.00 0.00 2

0.00 0.00 2

0.00 0.00 2

0.00 0.00 2

Page 3 ToxCalc v5.0.23 Reviewed by:__.tn

I~

fi -\\A'QUATIC BIOASSAY &

\\. CONSULTING SLABORATORIES, INC.

TOXICITY TESTING ° OCEANOGRAPHIC RESEARCH CHRONIC ABALONE DEVELOPMENT BIOASSAY DATE:

STANDARD TOXICANT:

Zinc NOEC 32.00 ug/l IC25 =

44. 10 ug/1 IC50 =

56.35 ug/l 26 April - 07 Yours very truly, Thomas (Tim) Mikel Laboratory Director 29 NORTH OLIVE STREET, VENTURA, CA 93001 * (805) 643-5621

I Start Date:

4/26/2007 End Date:

4/28/2007 Sample Date: 4/26/2007 Comments:

Standard Toxicant Abalone Larval Development Test-Proportion Normal Test ID: ABS042607 Sample ID:

REF-Ref Toxicant Lab ID:

ABC LABS Sample Type:

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

Test Species:

HR-Haliotis rufescens Conc-ug/L 1

2 3

4 5

Control 1.0000 1.0000 1.0000 1.0000 1.0000 18 1.0000 1.0000 1.0000 1.0000 1.0000 32 1.0000 1.0000 1.0000 1.0000 1.0000 56 0.1600 0.8800 1.0000 0.1000 0.3800 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 1-Tailed Isotonic Conc-ug/L Mean N-Mean Mean Min Max CV%

N t-Stat Critical MSD 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

0.000 2.230 0.3678 1.0000 1,0000 32 1.0000 1.0000 1.5208 1.5208 1.5208 0.000 5

0.000 2.230 0.3678 1.0000 1.0000

• 56 0.5040 0.5040 0,8271 0.3218 1.5208 63.055 5

4.207 2.230 0.3678 0.5040 0.5040 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) 0.69264 0.868 0.8027 4.18304 Equality of variance cannotbe confirmed Hypothesis Test (1-tail, 0.05)

NOEC LOEC ChV TU MSDu MSDp

-MSB MSE F-Prob df Dunnetts Test 32 56 42.332 0.16212 0.16252 0.60155 0.06799 0.00109 3,16 Treatments vs Control Point IC05 IC10 IC15 IC20 IC25 IC40 IC50 ug/L 34.419 36.839 39.258 41.677 44.097 51.355 56.349 Linear Interpolation (200 Resamples)

SD 95% CL(Exp)

Skew 2.022 33.051 41.541 6.5149 3.074 34.102 51.082 3.1579 4.201 35.152 60.614 2.4367 1.0-4.898 36.203 65.737 1.9479 1

5.352 37.254 68.491 1,5814 0.9 6.614 40.406 76.754 0.9022 0.8 7.605 42.430 82.185 0.5401 0.7 0.6 O0.5 0.4 0.3 0.2 0.1 0.0 0

50 100 150 200 Dose ug/L Page 1 ToxCalc v5.0.23 Reviewed by:.*j

Start Date:

4/26/2007 End Date:

4/28/2007 Sample Date: 4/26/2007 Comments:

Standard Toxicant Abalone Larval Development Test-Proportion Normal Test ID: ABS042607 Sample ID:

REF-Ref Toxicant Lab ID:

ABC LABS Sample Type:

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

Test Species:

HR-Haliotis rufescens Dose-Response Plot 1-tail, 0.05 level of significance I0.7 o 0.6 z

0.5 o 0.4 2jL 0.3 CO N'

to C')

LO C:

0 0-0 Page 2 ToxCalc v5.0.23 Reviewed by:

Abalone Larval Development Test-Proportion Normal Start Date:

4/26/2007 Test ID:

ABS042607 Sample ID:

REF-Ref Toxicant End Date:

4/28/2007 Lab ID:

ABC LABS Sample Type:

ZNSO-Zinc sulfate Sample Date: 4/26/2007 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 18 32 56 100 180 Control pH 18 32 56 100 180 Control DO mg/L 18 32 56 100 180 Control Salinity ppt 18 32 56 100 180 15.50 15.50 15.50 15.50 15.50 15M50 15.50 15.50 15.50 15.50 15.50 15.50 7.90 7.90 7.90 7.90 7.90 7.90 7.90 7.90 7.90 7.90 7.90 7.90 6.40 5.90 6.45 6.00 6.45 6.00 6.45 6.00 6.45 6.00 6.45 6.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 34.00 15.50 15.50 15.50 15.50 15.50 15.50 7.90 7.90 7.90 7.90 7.90 7.90 6.90 6.90 6.90 6.90 6.90 6.90 34.00 34.00 34.00 34.00 34.00 34.00 0.00 0.00 0.00 0.00 0.00 0.00

'0.00 0.00 0.00 0.00 0.00 0.00 0.71 0.64 0.64 0.64 0.64 0.64 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2

0.00 2

0.00 2

0.00 2

0.00 2

0.00 2

0.00 2

0.00 2

0.00 2

0.00 2

0.00 2

0.00 2

13.14 2

12.37 2

12.37 2

12.37 2

12.37 2

12.37 2

0.00 2

0.00 2

0.00 2

0.00 2

0.00 2

0.00 2

Page 3 ToxCalc v5.0.23 Reviewed by:

b'v

ENVIRONMENTAL CHAIN OF CUSTODY AND ANALYSIS REQUEST DOCUMENT ORIGINAL CL~ENTDFA1L SCTIN A

1"POR 011%`.;ý.

TIN!,

7 )N I

(3 C. 4 1-),

1. QCL-A -J 0,10 ell e-A4 41.4 I

110WAIRKSSE C STOYII Relinquished by and subject L the ndi o!

invee 01 s docum-ent:

Received by:_ -A L Dale rTunme Relinquished by:

Date Tm Received by:

Date t

Relinquished by:

.Date Time Received by:

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-Date Time CORPORATE OFFICE & LABORATORY P.O. Box 272/853 Corporation Street Santa Paula. CA 93061-0272 Tel: (805) 392-2000 FOkW uIoqcat 6'

OFFICE & LABORATORY 2500 Stagecoach Road Stockton, CA 95215 Tel: (209) 942-0181 FAX: (2091 942-0423 FIELD OFFICE Visalia, Califomia Tel: (559) 734-9473 Mobile: (559) 737-2399 FAX (559) 734-8435

Subcontract Chain of Custody REPORT INFORMATION:

Rush Analysis: El 5 days El 4 days El 3 days El 2 days El 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> Electronic Data Transfer: YES / NO If yes, To: State__

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REMARKS:

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