DCL-2017-511, Submittal of 2016 Annual Discharge Self-Monitoring Report
| ML17079A169 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 02/28/2017 |
| From: | Cortina D Pacific Gas & Electric Co |
| To: | Office of Nuclear Reactor Regulation, State of CA, Regional Water Quality Control Bd |
| References | |
| DCL-2017-511 | |
| Download: ML17079A169 (39) | |
Text
Pacific Gas and Electric Company IDDab!o Canyo11 l?ower Plant P. 0. Box 56 Avila Beach, GA 93424 PG&E Letter DCL-2017-511 Electronic Submission CIWQS Web 'Application February 28, 2017
. California Regional Water Quality Control Board Central Coast Region Attn: Monitoring and Reporting Review Section 895 Aerovista, Suite #101 San Luis Obispo, CA 93401-7906 In accordance with Order 90-09, NPDES No. CA0003751, the 2016 Annual Report on Discharge Self-Monitoring at Diablo Canyon Power Plant (DCPP) is provided. This letter, and accompanying annual data summary tables and data plots, are attached to the CIWQS application submittal (eSMR). Data for the Annual State DMR Forms was incorporated in the CIWQS 4th Quarter 2016 Facility Discharge Self-Monitoring Report submittal (eSMR/eDMR).
Facility Name: Diablo Canyon Power Plant .
Address: P.O. Box 56 Avila Beach, CA 93424 Contact Person: Bryan K. Cunningham Job
Title:
. Supervisor, Environmental Operations Phone Number: (805) 545-4439 WDR/NPDES Order Number: Order No. 90-09, NPDES No. CA0003751 Type of Report: (check one) QUARTERLY ANNUAL D 00 Quarter: (check one):
Year: 2016 (Annual Reports for DCPP are Jan-Dec)
Violation(s) (Place an X by the appropriate choice)~ IBl No (there are no violations to report) D Yes Note: Reference "Review of Compliance Record and Corrective Actions" Section
PG&E Letter DCl-2017-511 CRWQCB Central Coast Region February 28, 2017 Page2 If Yes is marked (complete a-g):
a) Parameter(s) in Violation:
b) Section(s) of WDR/NPDES Violated:
c) Reported Value(s) d) WDR/NPDES Limit/Condition:
e) Dates of Violation(s) (If "YES", see overview section of attached report)
(reference page of report/data sheet):
f) Explanation of Cause(s): (If "YES", see overview section of attached report)
(attach additional information as needed) g) Corrective Action(s): (If "YES", see overview section of attached report)
(attach additional information as needed)
PG&E Letter DCL-2017-511 CRWQCB Central Coast Region February 28, 2017 Page3 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.
I If you have any questions or concerns, or require additional information, please contact Bryan Cunningham at (805) 545-4439.
Sincerely,.
- Name: David Cortina
Title:
Manager, Chemistry and Environment~/ Operations- Diab/a Canyon Power Plant 2017511/bkc/cdg
PG&E Letter DCL-2017-511 CRWQCB Central Coast Region February 28, 2017 Page4 cc: Hardcopy Print-Out of CIWQS Application Submittal:
Chris Newport NRC Senior Resident Inspector U.S. Nuclear Regulatory Commission Diablo Canyon Power Plant 104/5 Regional Administrator Licensing Assistant, Operations Branch U.S. Nuclear Regulatory Commission Region IV 1600 East Lamar Boulevard Arlington, TX 76011-4511 U.S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555-000
CIWQS Web Application Submittal Print Out and Attached Supporting Documents eSMR PDF Report Summary: Annual SMR ( MONNPDES ) report for 2016 Summary: Annual SMR ( MONNPDES) report for 2016 submitted by david cortina (Chemistr)t and Environmental Services Manager) on 02/28/2017.
Facility Name: PG&E Diablo Canyon Power Plant Order Number: R3-1990-0009 Waterboard Office: Region 3 - Central Coast Case Worker: Peter Von Langen Report Effective Dates: 01/01/2016 - 12/31/2016 No Discharge Periods Name Description Dates Comments Diablo M-001 Diablo M-0010 Diablo M-OOlF Diablo M-OOlG Diablo M-OOlH Diablo M-0011 01/01/2016 - 12/31/2016 Plant Seawater Evaporators no longer in service.
Diablo M-OOlJ
- Diablo M-OOlK 01/01/2016 - 12/31/2016 Plant Condenser Tube Sheet Leak Detection Dump Tank no longer in service.
Diablo M-OOlL Diablo M-OOlM Diablo M-OOlN Diablo M-OOlP Diablo M-002 Diablo M-003 Diablo M-004 Diablo M-005 Diablo M-008 Diablo M-009 Diablo M-013 Diablo M-015 Diablo M-016 01/01/2016 - 12/31/2016 Bio Lab Seawater Supply Line Valve Box not drained during 2016. No effluent discharaed.
Diablo M-017 01/01/2016 - 12/31/2016 Seawater RO System Blowdown Line not drained during 2016. Discharge rarelv used.
Diablo M-INF Self-Determined Violations No Violations Entered Attachments File Name File Description Date Uploaded File Size 2016 Annual Summary Report on Discharge Monitoring at - 2016 DCPP Annual Report Overview Section.pdf 02/28/2017. 22800 bytes Diablo Canvon Power Plant Page 1of3
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Attachment:
? - 2016 DCPP Ar)nual Rpt Appendix-1 NPDES Discharaes.odf DCPP NPDES Permit Order 90-0~ Discharge Points Table 02/28/2017 10081 bytes Attachment 3 - 2016 DCPP Annual Rpt Appendix-2 Tabular Data.
Tabular Summaries of Influent and Effluent Monitoring 02/28/2017 198438 bytes odf Attachment 4 - 2016 DCPP Annual Rpt Appendix-3 Graphical Data.odf Graphical Summaries of Influent and Effluent Monitoring 02/28/2017 204867 bytes Attachment 5 - 2016 DCPP Annual Rpt Appendix-4 RWMP Summary of Receiving Water Monitoring Program (RWMP) 02/28/2017 8258 bytes Summarv.odf Activities 02/28/2017 1123161 bytes Data Summary Analytical Results No' Analytical Data Measurements Available I Reported Calculated Values No Calculated Data Measurements Available/ Reported Lab Batches No Lab Batch Data Available/ Reported Certificate 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. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprison.ment for knowing violations.
I certify that I am david cortina and am authorized to submit this report on behalf of PG&E Diablo Canyon Power Plant. I understand that I am
. submitting the following report(s):
- Annual SMR ( MONNPDES ) report for 2016 (due 02/28/2017)
I understand that data submitted in this report(s) can be used by authorized agencies for water quality management related analyses and enforcement actions, if required.
I am also aware that my user ID, password, and answer to a challenge question constitute my electronic signature and any information I indicate I am electronically certifying contains my signature. I understand that my electronic signature is the legal equivalent of my handwritten signature. I certify that I have not violated any term in my Electronic Signature Agreement and that I am otherwise without any reason to believe that the confidentiality of my password and challenge question answers have been compromised now or at any time prior to this submission. I understand that this attestation of fact pertains to the implementation, oversight, an~ enforcement of a federal environmental program and must be true to the best of my knowledge.
Name: david cortina Page 2 of 3
ANNUAL
SUMMARY
REPORT ON DISCHARGE MONITORING ATTHE DIABLO CANYON POWER PLANT (NPDES NO. CA0003751) 2016
PG&E Letter No. DCL-2017-511 2016 Annual Summary Report on Discharge Monitoring at the Diablo Canyon Power Plant TABLE OF CONTENTS OVERVIEW
SUMMARY
OF MONITORING PROGRAM 1 A. Monitoring of Plant Influent and Effluent 1
- 1. Monitoring Data 1
- 2. Facility Operating and Maintenance Manual 1
- 3. Laboratories Used to Monitor Compliance 2
- 4. Review of Compliance Record and Corrective Actions 2 B. Monitoring of Receiving Water 4
- 1. Ecological Studies c;it Diablo Canyon 4
- 2. In-Situ Bioassay 4 C. Sodium Bromide Treatment Program 4 APPENDICES Appendix 1 - NPDES Discharge Points Appendix 2 - Tabular Summaries of Influent and Effluent Monitoring Appendix 3- Graphical Summaries of Influent and Effluent Monitoring Appendix4- Summary of RWMP Monitoring for 2016
2016 Annual Summary Report on Discharge Monitoring at the Diablo Canyon Power Plant
- ovERVIEW This annual summary report follows the format used in quarterly monitoring reports. Analytical results below the respective analytical detection limit (ND or non-detect) are plotted as a "zero" value in accordance with ELAP guidance. Results between the analytii;;al detection limit and reporting (quantitation) limits are plotted at the value and shown as 'DNQ' in the tabular summaries as is done for CIWQS reports. Less-than results are typically reported to express an average of values that include non-detects and at least one result greater than the respective reporting limit (RL). These less-than results are plotted conservatively at the RL. During 2016, discharges occurred from all discharge paths except 0011, 001K, 016, and 017.
California Ocean Plan Table B substances that were not analyzed for have not been added to the discharge stream. The substances listed in Table B in the California Ocean Plan were each analyzed for and reported in the permit renewal application and application updates for Diablo Canyon Power Plant (DCPP) submitted in October 1994, January 2001, and April 2011. There have been no changes in activities conducted at the plant
...._ that would have significantly affected the results previously reported in the above referenced documents.
SUMMARY
OF MONITORING PROGRAM A. Monitoring of Plant Influent and Effluent
- 1. Monitoring Data
- a. Appendix 1 provides a list of discharge path names for ease of reference. Appendix 2 contains monitoring data in tabular form. Appendix 3 contains monitoring data in graphical form.
- b. Annual oil and grease analyses were performed in November on StormwaterNard Drain Discharges
- 005, 008, 009, 013, and 015. Analytical results are listed below. No discharge occurred from pathways 016 and 017 during 2016.
005 non-detect - ND(1.4) mg/I
- 008 DNQ(2.1) mg/I 009 DNQ(1.6) mg/I 013 non-detect- ND(1.4) mg/I 015 DNQ(2.3) mg/I
- c. In October, Discharge 001 D (Liquid Radioactive Waste Treatment System) annual grab samples for lithium, boron, and hydrazine werE;i collected and analyzed. The results were_0.826 mg/I lithium, 1580 mg/I boron, and non~detect ND(0.003) mg/I hydrazine.
- 2. Facility Operating and Maintenance Manual Pacific Gas and Electric Company (PG&E) maintains a multiple volume Plant Manual at DCPP that' c9ntains procedures used for operation and maintenance activities at the plant, including those activities that relate to wastewater handling, treatment, sampling, analysis and discharge.
Plant procedures are prepared and reviewed by DCPP Staff and approved by Plant Management. The facility conducts biennial internal audits that review NPDES procedures contained in the plant manual, as well as procedure implementation adherence by responsible workgroups. Ongoing reviews of plant procedures are cond!Jcted to assure that the manual remains valid, current, and complete for the facility.
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- 3. Laboratories Used to Monitor Compliance The following laboratories were used during 2016 for monitoring compliance. The laboratories are certified by appropriate agencies for the tests/analyses performed. As part of the on-going annual certification process, these laboratories take part in annual performance evaluation testing. *
- a. PG&E Chemistry Laboratory, DCPP, Avila Beach; California (EPA Lab# CA01036)
- b. Aquati.c Bioassay Consulting Laboratories, Ventura, California (EPA Lab# CA01907)
- c. ALS Environmental, Kelso, Washington (EPA Lab# WA00035)
- e. Abalone Coast Analytical, San Luis Obispo, California (EPA Lab# CA02661)
- f. E. S. Babcock & Sons, Inc., Environmental Laboratories, Riverside, California (EPA Lab# CA00102)
- g. BSK Associates, Fresno, California (EPA Lab# CA00079)
- 4. Review of Compliance Record and Corrective Actions
- a. Circulating Water Chlorination/Bromination Monitoring The 2016 quarterly NPDES reports discuss chlorination cycles when discharge monitoring was interrupted. These events are listed below, with brief descriptions of the cause and respective corrective action. When these monitoring interruptions occurred, engineering evaluations were performed (as approved by the CCRWQCB January 13, 1994; PG&E Letter No. DCL-94-002).
Descriptions of these evaluations are included in the respective quarterly reports as applicable.
The evaluations concluded that discharge chlorine limits were not exceeded during these events.
Unit and Number of Date Cause Corrective Action Readings Replaced 06/27/16 Unit-2 Sampling missed due to air Sample line cleared &
to 06/29/16 8 Readings binding of sample pump. pump flow restored.
Low response both unit monitors 08/18/16 Unit-1 & Unit-2 Flow blocks & sample tubing 55 Readings caused by biological growth in to 08/23/16 cleaned. Monitors calibrated.
flow blocks & sample line tubing.
09/02/16 Unit-1 Low monitor response caused by Flow block cleaned to 09/07/16 29 Readings biological growth in flow block.* & monitor calibrated.
10/26/16 to Unit-2 Low monitor response Monitor recalibrated.
11/02/16 16 Readings during QC-check.
11/16/16 to Unit-1 High monitor response Monitor recalibrated.
11/23/16 39 Readings during QC-check .
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- b. Discharge Exceedance Events On December 02, 2016, a brief Total Residual Chlorine (TRC) spike occurred on the Unit-1 outfall monitor at the start of the routine 04:00 chemical treatment cycle. The resultant peak monitored value was 142-ppb TRC for Discharge 001, an exceedance of the 89-ppb calculated Ocean Plan limit for TRC discharge during a 20-minute chlorination treatment. The event was not an exceedence of the 200-ppb NPDES permit limit for TRC.
Review of injection system operations, including associated condenser waterbox and discharge outfall chlorine monitor data, determined th;:it an excessive concentration of chemical had been injected into seawater Conduit 1-1 during the scheduled treatment cycle. Evaluation of chemical skid equipment in conjunction with system testing determined the cause of the excessive injection was failure of a sodium hypochlorite supply isolation valve to fully close during system flushing, resulting in sodium hypochlorite instead of deionized water being pumped into the line leading to the 1-1 Conduit during the flushing phase of pump operations at the end of the prior injection cycle. At the start of the subsequent treatment cycle, the residual sodium hypochlorite in the line was injected into the 1-1 Conduit resulting in a brief excessive concentration in the seawater flow. This in turn resulted in a brief excessive concentration of residual chlorine at the Unit-1 outfall during the treatment cycle.
Correcti:ve action involved replacement of the identified faulty sodium hypochlorite supply line isolation valve. Subsequent system testing and operation determined the valv~ replacement adequately resolved this equipment-related issue.
- c. Closed Cooling Water Releases During 2016, 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 gluta(aldehyde and isothiazolin to control microbiological growth and corrosion in DCPP's freshwater closed cooling water systems. Any drainage from these systems is discharged at a flow-rate such that the chronic toxicity level is below the "No Observable Effect Concentration" (NOEC) at NPDES Discharge 001.
The volumes of cooling water drained in 2016 from the component cooling water (CCW), service cooling water (SCW), and intake cooling water (ICW) systems are presented below. The glutaraldehyde (Glut) and isothiazoline (lso) concentrations presented in the table are system concentrations, not concentrations at the point of discharge to receiving water.
\ Total Oil&
Volume Glut lso Reason &
Date . System Suspended Grease (gallons) (mg/I) (mg/I) Comments Solids (mg/I) (mg/I) 01/07/16 Unit-2 CCW 2,100 100 0 < 2.0 < 1.4 Routine Maintenance 02/08/16 Unit-1 ICW 15 0 < 0.25 n/a n/a Routine Maintenance 02/16/16 Unit-1 ICW 10 0 < 0.25 n/a n/a Routine Maintenance 05/04/16 Unit-2 sew 9,000 n/a 4.0 < 2.0 < 1.4 Routine Maintenance 05/05/16 Unit-2 ICW ' 1, 100 n/a 6.0 n/a n/a Routine Maintenanee 05/18/16 Unit-2 CCW 1,600 81 < 0.25 2.0 < 1.4 Routine Maintenance 05/23/16 Unit-2 CCW 120,000 81 < 0.25 2.0 < 1.4 Routine Maintenance 07/07/16 , Unit-2 ICW 10 n/a 0.77 ND (2) DNQ (1.8) Routine Maintenance 11/15/16 Unit-2 CCW 2,700 99 0 < 2.0 < 1.4 Routine Maintenance 3
B. Monitoring of Receiving Water
- 1. Ecological Studies at Diablo Canyon Marine ecological monitoring was continued during 2016 under the 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 from PG&E dated January 8, 1999 (DCL-99-503). This program includes tasks from the Ecological Monitoring Program (EMP) with additional stations and increased sampling frequencies. This program replaces the EMP and the Thermal Effects Monitoring Program (TEMP). Several one-year-only tasks outlined in the above letters were completed in 1999 and were not requested to be performed in 2016. Results of 2015 RWMP data collection were submitted to the CCRWQCB on April 29, 2016. A table in Appendix 4 summarizes requirements and completed monitoring tasks for 2016. Due to adverse ocean conditions, completion of the 4th Survey for Benthic Stations and Fish Observation Transects yvas delayed into January 2017.
- 2. In Situ Bioassay Results of the Mussel Watch Program are reported to the CCRWQCB directly by the California Department of Fish and Wildlife (CDF&W) in the agency's periodic report for this program.
C. Sodium Bromide Treatment Program DCPP continued an integrated sodium bromide and "foul release coating" strategy to control macrofouling in the Circulating Water System (CWS). Both circulating water conduits of each Unit can be chemically treated simultaneously. Routine treatment consists of six 20-minute injections per day (at 4-hour intervals) of a blend of sodium bromide and sodium hypochlorite into the plant se.awater intake conduits. Each injection attempts to achieve a target concentration range of 250 to 300 parts per billion (ppb) Total Residual Oxidant (TRO) at the inlet waterbox of the main steam condensers.
Discharge TRO, measured at the plant outfall, remained below NPDES limitations with the exception of one isolated event in December in which the calculated Ocean Plan limit of 89-mg/L for discharge from a 20-minute chlorination treatment was exceeded (Reference Section-4 Review of Compliance Record and Corrective Actions ltem-b. Discharge Exceedance Events). Typically, discharge TRO values during treatment were between 20 ppb and 50 ppb.
In conjunction with the chemical treatment, untreated portions of the cooling water system were previously painted with a non-toxic "foul release coating" to reduce or prevent attachment of fouling organisms.
Both conduits of Unit-1 were treated with simultaneous injections of sodium bromide and sodium hypochlorite six times a day throughout most of the 1st through 3rd quarters of 2016, with brief interruptions in February, April, May, June, July, and August for equipment maintenance activities; Sodium bromide injections to Unit 1 conduits were shut down in mid-October for approximately 2-weeks due to a scheduled mid-cycle seawater conduit cleaning. Sodium hypochlorite injections were additionally shut down for approximately 1-week for this cooling system maintenance activity. Chemical injections were re-initiated to Unit 1 when circulating water pumps were restarted following completion of the conduit cleaning.
Following the October cleaning, both conduits of Unit-1 were treated with simultaneous injections of sodium bromide and sodium hypochlorite six times a day throughout the remainder of 2016, with one brief interruption in November for an equipment maintenance activity, and two interruptions of several days each in December to facilitate intake chemical injection skid equipment replacement and upgrade work scope. Additionally, chemical treatment to Conduit 1-1 was suspended for approximately 1-week during December to evaluate the cause and implement corrective actions following an excessive sodium hypochlorite injection event (Reference Section-4 Review of Compliance Record and Corrective Actions ltem-b. Discharge Exceedance Events).
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Both conduits of Unit-2 were treated with simultaneous injections of sodium bromide and sodium hypochlorite 51 six times a day throughout the 1 quarter of 2016, with brief interruptions in January and February for equipment maintenance activities. An additional brief interruption for maintenance occurred in early April.
Chemical injections to Unit-2 were then terminated in late April for the scheduled 2R19 unit refueling outage.
Simultaneous injections of sodium hypochlorite and sodium bromide were restarted for Unit-2 in late May following completion of the refueling outage, and continued throughout the 2nd quarter with one brief interruption in June for maintenance activities. During the 3rd quarter Unit-2 chemical injections were briefly interrupted for equipment maintenance in July.and August. During the 4th quarter unit chemical treatment was suspended for several days in November for equipment maintenance, and two interruptions of several days each occurred in December to facilitate intake chemical injection skid equipment replacement and upgrade work scope.
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Annual Discharge Monitoring Report 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 Svstem 001 E Service Cooling Water System 001 F Turbine Building Sump 001 G Make-Up Water System Waste Effluent 001 H Condensate Demineralizer Regenerant 0011 Seawater Evaporator Slowdown 001 J Condensate Pumps Discharge Header Overboard 001 K Condenser Tube Sheet Leak Detection I
Dump Tank Overboard 001 L Steam Generator Slowdown 001 M Wastewater Holding and Treatment System 001 N Sanitary Wastewater Treatment Svstem 001 p Seawater Reverse Osmosis System Slowdown 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 I
Valve Drain 017 Seawater Reverse O~mosis System Slowdown Drain L_
Annual Discharge Monitoring Report APPENDIX 2 TABULAR SUMMARIES OF INFLUENT AND EFFLUENT MONITORING
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2016 Annual Summary Report on Discharge Monitoring at the Diablo Canyon Power Plant DISCHARGE 001 TEMPERATURE (DEG F) FLOW(MGD)
INFLUENT EFFLUENT D~LTAT Month hillh low a vii hillh low avii hillh avs hillh low a vii JAN 57.8 55.9 57.1 76.7 75.l 76.0 19.2 18.9' 2486 2486 2486 FEB 57.4 53.6 56;0 76.1 72.8 74.9 19.3 18.9 2486 2486 2486 MAR 58.0 50.1 54.5 76.6 69.0 73.4 19.1 18.9 2486 2486 2486 APR 54.4 49.5 51.8 73.2 65.1 70.5 19.0 18.8 2486 2389 2483 MAY 53.5 50.5 51.7 72.2 65.1 70.0 19.0 18.3 1958 1239 1307 JUN 53.5 50.0 51.9 72.2 66.7 70.2 18.9 18.3 2486 1862 2401 JUL 55.8 51.2 53.5 74.8 69.9 72.3 19.1 18.8 2486 2486 2486 AUG 56.6 53.3 55.1 76.0 72.3 74.2 19.6 19.1 2486 2486 2486 SEP 58.8 52.8 56.1 78.2 72.0 75.4 19.5 19.2 2486 2486 2486 OCT 59.6 53.6 56.5 78.6 72.5 75.6 19.8 19.1 2486 1874 2393 NOV 59.1 54.6 57.2 78.0 73.4 76.2 19.7 19.0 2486 21~2 2476 DEC 55.3 53.8 54.6 79.3 72.4 73.4 19.1 18.8 2486 2486 2486 limit: 22 2760 The Influent and Effluent "high" and "low" tempertu.re values correspond to the highest and lowest daily average value for that month. The Influent high and low temperature does not necessarily correspond to the same day as the Effluent high and low temperature for that month. The "avg" temperature for Influent and Effluent is the average forthe entire month. The Monthly Delta T "high" is the highest Delta T for a day of the month based on daily average Influent and Effluent temperature values. The "avg" temperature is calculated from Influent and Effluent monthly avg values.
DISCHARGE 001 TOTAL RESIDUAL TOTAL CHLORINE CHLORINE (daily max. ug/l) USED (lbs/day)
Month hillh low avs hillh low avs JAN 43 27 32 691 372 639 FEB 43 <10 30 620 0 598 MAR 51 19 34 648 533 6_07 APR 68 12 30 518 274 398 MAY 84 <10 31 446 158 310 JUN 39 <10 , 20 576 298 517 JUL 16 <10 <10 691 504 627 AUG 80 <10 13 799 422 692 SEP 34 <10 <10 850 677 772 OCT 74 <10 13 850 425 690 NOV 74 <10 15 821 276 668 DEC 142 <10 23 576 34 372 Note: The residual chlorine limits in Permit CA0003751, Order 90-09, is an instantaneous max of 200 ugn, and includes a time-based limit (per the Ocean Plan) which depends on the length of the respective chlorination cycle.
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2016 Annual Summary Report on Discharge Monitoring at the Diablo Canyon ~ower Plant -
DISCHARGE 001 METALS (monthly avg. ug/I)
CHROMIUM COPPER NICKEL *ZINC Month Influent Effluent Influent Effluent Influent Effluent Influent Effluent JAN ND(5) ND(5) DNQ(8) DNQ(7) ND(S) ND(S) DNQ(5) DNQ(6)
FEB ND(S) ND(S) DNQ(7) DNQ(6) ND(5) ND(5) 16 ND(S)
MAR ND(S) ND(S) DNQ(6) DNQ(7) ND(S) ND(S) ND(S) ND(S)
APR ND(5) ND(S) DNQ(6) DNQ(7) ND(5) ND(S) ND(S) ND(S)
MAY ND(S) ND(5) DNQ(8) DNQ(6) ND(5) ND(5) DNQ(9) ND(S)
JUN ND(5) ND(5) DNQ(9) DNQ(8) ND(S) ND(5) 16 DNQ(7)
JUL ND(S) ND(S) DNQ(7) DNQ(8) ND(S) ND(S) DNQ(6) ND(S)
AUG ND(S) ND(S) DNQ(6) DNQ(6) ND(S) ND(S) ND(S) ND(S)
,SEP ND(S) ND(S) DNQ(6) DNQ(9) ND(S) ND(S) 13 DNQ(9)
OCT ND(S) ND(5) DNQ(7) DNQ(9) ND(S) ND(5) ND(5) ND(5)
NOV ND(S) ND(S) DNQ(8) 10 ND(S) ND(S) ND(S) ND(S)
DEC ND(S) ND(S) DNQ(8) DNQ(9) ND(S) ND(S) ND(S) ND(S) 6-month median limit: 10 10 30 70 Note: Influent results presented only for comparison to effluent.
Influent Cr, Cu, Ni, are analyzed monthly, but are only required to be reported quarterly by permit.
Influent zinc is analyzed monthly and reported quarterly, but only required annually by permit.
DISCHARGE 001 VARIOUS ANNUAL ANALYSES (ug/I)
- 6-Mo.Med.
Effluent Parameter Influent Effluent Limit Arsenic 1.31 1.28 30 Cadmium 0.052 0.044 10 Cyanide ND(0.9) ND(0.9) 30 Lead 0.077 0.056 10 Mercury DNQ(0.000340) DNQ(0.00047) 0.2 Silver DNQ(0.018) ND(0.004) 2.9 Titanium ND(0.4) ND(0.4) none
- Phenolic Compounds ND(3.03) ND(3.03) 150 (non-chlorinated)
- Phenolic Compounds ND(0.057) ND(0.057)' 10 (chlorinated)
- PCB's ND(0.066) ND(0.066) none
- Results for analysis of 8 target compounds. The sum of the 8 detection limits is 3.03.
- Results for analysis of 6 target compounds. The sum of the 6 detection limits is 0.57.
- Detection limits shown are the sum of individual detection limits for 7 target compounds.
DISCHARGE 001 AMMONIA (as N) (ug/I)
Month Influent Effluent JAN I 250 270 FEB MAR APR 220 280 MAY JUN JUL 180 210 AUG SEP OCT 190 150 NOV DEC 6"month median limit: 3,060 Page2of6
2016 Annual Summary Report on Discharge Monitoring at the Diablo Canyon Power Plant MONTHLY pH (averages)
Discharge: 001 002 003 004 OOlP Month Influent Effluent JAN 8.0 8.0 7.9 8.0 8.0 7.6 FEB 7.9 7.9 8.0 7.9 7.9 7.6 MAR 8.0 8.0 8.1 7.9 8.1 7.7 APR 8.0 7.9 8.0 8.0 8.0 7.7 MAY 7.9 7.9 7.9 7.9 7.9 7.7 JUN 7.8 7.8 7.9 7.9 7.9 7.6 JUL 7.8 7.9 7.9 7.9 7.9 7.6 AUG 8.0 7.9. 8.0 8.0 8.0 7.7 SEP 8.1 8.1 8.1 8.0 8.0 7.8 OCT 7.9 7.9 8.0 7.9 7.9 7.7 NOV 8.1 8.1 8.0 8.1 8.0 7.9 DEC 8.0 8.0 8.0 8.0 7.9 7.6 DISCHARGE OOlF ..
SUSPENDED OIL & GREASE (mg/I) SOLIDS (mg/I)
Month high avg high avg JAN ND(l.4) ND(l.4) 5 <S FEB ND(l.4) ND(l.4) DNQ(4) DNQ(4)
MAR DNQ(3.7) DNQ(3.7) DNQ(4) DNQ(3)
APR DNQ(3.0) DNQ(3.0) 6 <5 MAY DNQ(l.8) DNQ(l.8) 10 10 JUN DNQ(2.5) DNQ(2.5) 5 <5
. JUL DNQ(3.7) DNQ(3.7) DNQ(4) DNQ(3)
AUG 5.1 <S.O 6 <5 SEP DNQ(4.8) DNQ(4.8) DNQ(4) DNQ(3)
OCT DNQ(3.0) DNQ(3.0) DNQ(3) DNQ(3)
NOV DNQ(2.4) DNQ(2.4) DNQ(2) DNQ(2)
DEC 5.3 5.3 6 6 limit: 20 . 15 100 30 Note: "high" limits based upon Daily Maximum limits. "avg" limits based upon Monthly Average limits.
DISCHARGE OOlN (Monthly Summary of Weekly Data)
SUSPENDED SETTLEABLE GREASE & OIL (mg/I) SOLIDS (mg/I) SOLIDS (ml/I)
Month high low avg high low avg high low avg JAN DNQ(l.5) ND(0.24) DNQ(0.7) 18 3 8 DNQ(0.1) DNQ(0.1) DNQ(0.1)
FEB DNQ(0.78), DNQ(0.63) DNQ(0.7) 8 4 6 DNQ(0.1) DNQ(0.1) DNQ(0.1)
MAR DNQ(2.1) DNQ(0.7) DNQ(l.3) 26 3 14 DNQ(0.1) DNQ(0.1) DNQ(0.1)
APR DNQ(l.2) DNQ(l.07) DNQ(l.1) 26 6 15 DNQ(0.1) DNQ(0.1) DNQ(0.1)
MAY DNQ(2.4) DNQ(0.86) DNQ(l.6) 28 17 23 DNQ(0.1) DNQ(0.1) DNQ(0.1)
JUN DNQ(l.05) DNQ(0.30) DNQ(0.7) 21 3 10 DNQ(0.1) DNQ(0.1) DNQ(0.1)
JUL DNQ(0.86) ND(0.24) DNQ(0.61) 11 7 9 DNQ(0.1) DNQ(0.1) DNQ(0.1)
AUG DNQl.81) DNQ(0.30) DNQ(0.78) 28 8 14 0.2 DNQ(0.1) <0.1 SEP DNQ(l.3) ND(0.24) DNQ(0.57) 24 6 13 DNQ(0.1) DNQ(0.1) DNQ(0.1)
OCT DNQ(0.24) DNQ(0.24) DNQ(0.24) 16 4 *9 0.1 DNQ(0.1) <0.1 NOV. DNQ(0.43) ND(0.24). DNQ(0.24) 10 4 7 DNQ(0.1) DNQ(0.1) DNQ(0.1)
DEC DNO(l.6V ND(0.24) DNO(l.1) 23 5 12 DN0(0.1) DN0(0.1) DNQ(0.1) limit: 20. 15 60 3.0 1.0 Note: "high" limits based upon Daily Maximum limits. "avg" limits based upon Monthly Average limits.
Page3 o/6
2016 Annual Summary Report-on Discharge Monitoring at the Diablo Canyon Power Plant DISCHARGE OOlD, H, L, F, METALS (avg. ug/1) oom oorn OOlL OOlF Month A!! Cd Cr Cu A!! Cd Cr Cu A!! Cd Cr Cu A!! Cd Cr Cu JAN DNQ(0.16) 0.15 DNQ(l.5) 5.2 ND(S) ND(5) <10 37 ND(5) ND(S) ND(S) ND(S) ND(S) ND(S) DNQ(8) 14 FEB MAR APR ND(0.10) DNQ(0.18) DNQ(l.8) DNQ(3.1) ND(S) ND(S) 27 32 ND(S) ND(S) ND(S) 21 ND(S) ND(S) 24 11 MAY JUN JUL DNQ(0.16) ND(0.043) 2.9 DN0(2.0) ND(5) ND(5) 33 31 ND(5) ND(5) ND(5) ND(5) ND(5) ND(5) 55 DN0(7)
AUG SEP OCT DNQ(0.12) DNQ(0.22) 3.0 DNQ(2.9) ND(S) ND(S) 24 29 ND(S) ND(S) ND(S) 11 ND(S) ND(S) 39 14 NOV DEC limit: none Note: OOlD, OOlH and OOlL analyses performed on quarterly composites.
OOlF analyses performed quarterly on a composite of weekly samples.
DISCHARGE OOlD, H, L, F, METALS (avg. ug/1) oom oorn OOlL . OOlF Month Hg Ni Pb Zn Hg Ni Pb Zn Hg Ni Pb Zn Hg, Ni Pb Zn JAN ND(0.080) 4.9 0.6 260 ND(0.080) <10 23 11 ND(0.080)ND(5) ND(S) ND(S) ND(0.080l_ 13 19 63 FEB MAR APR ND(0.080) DNQ(l.4) . 2.9 53 ND(0.080) 18 22 <10 ND(0.080)ND(5) DNQ(5) ND(5) ND(0.080) 18 23 14 MAY JUN JUL ND(0.010) DNQ(l. 7) 0.7 30 ND(0.010) 11 21 <10 ND(O.OlO)ND(S) ND(5) ND(S) ND(0.010) 74 16 10 AUG SEP OCT. ND(0.080) DNQ(l.8) 0.8 59 ND(0.080) 16 24 <10 ND(0.080)ND(5) ND(S) ND(5) ND(0.080) 46 20 17 NOV DEC limit: none Note: OOlD, OOlH and OOlL analyses performed on quarterly composites.
- OOlF analyses performed quarterly on a composite of weekly samples.
Page4 o/6
20i6 Annual Summary Report on Discharge Monitoring at the Diablo Canyon Power Plant .
MONTHLY TOTAL SUSPENDED SOLIDS Averages (mg/I)
Month OOlD* OOlG OOlH 0011 OOlJ OOlK OOlL OOlM 'OOlP 002 003 JAN <5 ND(2) ND(2) ND(2) DNQ(4) 7 12 FEB <5 ND(2) DNQ(2) ND(2) <5 15 18 MAR ND(2) ND(2) ND(2) ND(2) 26 8 7 APR <5 ND(2) ND(2) ND(2) 28 ND(2) DNQ(4)
MAY <5 ND(2) ND(2) ND(2) ND(2) 24 DNQ(4) 8 JUN <5 ND(2) ND(2) ND(2) ., DNQ(2) <5 ND(2) DNQ(3)
JUL <5 ND(2) DNQ(2) ND(2) DNQ(4) DNQ(2) ND(2) ND(2)
AUG <5 ND(2) DNQ(2) ND(2) DNQ(3) DNQ(2) ND(2) 7 SEP <5 ND(2) ND(2) ND(2) ND(2) 20 ND(2)
OCT <5 ND(2) ND(2) ND(2) 10 DNQ(3) DNQ(2)
NOV <5 ND(2) DNQ(2) ND(2) 15 6 6 DEC <5 ND(2) ND(2) ND(2) 16 DNQ(3) DNQ(3)
Limit: 30 30 30 30 30 30 30 30 30 30
- Discharges from OOlD are batched. Monthly averages are flow weighted.
Note: No discharges occurred from 0011 and OOlK during 2016.
Blank spots for other discharge points indicate that no discharge occurred during that particular month.
GREASE&OIL Averages by Month (mg/I)
Month OOlD* OOlG OOlH 0011 OOlJ OOlK OOlL OOlM OOlP 002 003 004 JAN <5.0 ND(l.4) ND(l.4) ND(l.4) ND(l.4) ND(l.4) ND(l.4) ND(l.4)
FEB MAR APR <5.0 ND(l.4) ND(l.4) ND(l.4) ND(l.4) DNQ(l.4) ND(l.4) ND(l.4)
MAY ND(l.4)
JUN JUL DNQ(2.8) DNQ(l.6) ND(l.4) ND(l.4) DNQ(l.6) DNQ(l.8) DNQ(2.l) DNQ(2.0)
AUG DNQ(2.3)
SEP OCT DNQ(l.4) ND(l.4) ND(l.4) ND(l.4) ND(l.4) ND(l.4) ND(l.4) ND(l.4)
NOV DEC Limit: 15 15 15 15 15 15 15 15 15 15 15 15
- Discharges from OOlD are batched. Averages are flow-weighted and calculated monthly. Monthly averages are averaged for quarter and reported.
Note: No discharges occurred from 0011 and OOlK during 2016.
Page 5 o/6
2016 Annual Summary Report on Discharge Monitoring at the Diablo Canyon Power Plant QUARTERLY ACUTE AND CHRONIC TOXICITY TESTING (toxicity units, tu 3 and tuc)
ACUTE *CHRONIC Test 6-Month Test Month Resnlt Median Result JAN FEB 0.00 0.00 1.00 MAR APR 0.00 0.00 1.00 MAY JUN JUL AUG 0.00 0.00 1.00 SEP OCT NOV DEC 0.00 0.00 1.00 6-month median limit: 0.26 5.1
- This parameter is monitored for the State Ocean Plan instead of the NPDES Permit. A value of 1.0 indicates no chronic toxicity.
DISCHARGE OOlN ANNUAL ANALYSES Sludge Parameter Result Limit Percent Moisture 99% None Total Kjeldahl Nitrogen 76000 mg/kg dry None Ammonia (N) 7300 mg/kg dry None Nitrate (N) ND(llO) mg/kg dry None Total Phosphorous 26000 mg/kg dry None pH 7.0S.U. None Oil and Grease ND(9.7) % dry None Boron 180 mg/kg dry None Cadmium 1.6 mg/kg dry lOXSTLC*
Copper 430 mg/kg dry lOXSTLC Chromium 9.4 mg/kg dry lOXSTLC Lead 7.1 mg/kg dry lOXSTLC Nickel 11 mg/kg dry lOXSTLC Mercury 0.23 mg/kg dry lOXSTLC Zinc 740 mg/kg dry lOXSTLC Volume 46.1 tons None Note: Annual samples were collected in October.
- STLC =Soluble Threshold Limit Concentration Page 6 o/6
Annual Discharge Monitoring Report APPENDIX 3 GRAPHICAL SUMMARIES OF INFLUENT AND EFFLUENT MONITORING
2016 Annual Summary Report on Discharge Monitoring at the Diablo Canyon Power Plant DISCHARGE 001 INFLUENT Temperature ( 0 F) 90.0 80.0 70.0
~~ 50.0 60.0~~::::::t::::::::!:::::::ii==::::~~====-=====:t:=====*======1;::::::~t=====t=:::::~~
J
~ 40.0 QI c
30.0 -High 20.0 ---t- Average 10.0 -Low 0.0 +--~~-t-~~-+-~~--+~~~1--~~+--~~-1-~~-+-~~--+~~---11--~~+--~----;
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 DISCHARGE 001 EFFLUENT Temperature ( 0 F) 90.0 80.0~~::::::t:::::::t:::::!=:::~::===~~==:3a:======-=====t:====:t:====:t:::=:;;;;:;
70.0 t 60.0 50.0 e 40.0 Ill Cl QI c
30.0 - High 20.0 ---e- Average 10.0 -Low 0.0 -+-~~-1-~~--+~~~1--~~+-~~-1-~~--+~~~1--~~+-~~-+-~~--+~~____,
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Page 1of15
2016 Annual Summary Report on Discharge Monitoring at the Diablo Canyon Power Plant DISCHARGE 001 EFFLUENT Flow(MGD) 3000 2500 c
~ 2000 Q.
Ill c:
.2 1500 iii C) c:
1000
~ __.,_Limit
- i -High 500 ~Avera ge
-Low 0
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 DISCHARGE 001 EFFLUENT Monthly Delta T ( 0 F) 25 2ot====t=====+----.e-=====:t:====::$====*==~F===+====t====t=====4 u... 15 Ill f!
Cl
~ 10
~Limit
--&-Hi gh 5
~A ve rage 0 +-~~-+-~~---1~~~-+-~~-+-~~---l~~~-+-~~-+-~~---jf--~~-+-~~-+~~---1 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Page 2of1 5
2016 Annual Summary Report on Discharge Monitoring at the Diablo Canyon Power Plant DISCHARGE 001 Total Chlorine Residual, ug/I
-High 160
-+--Average 140 120 100
...J Ci 80
- I 60 40 20 0
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: Valu es plotted at zero were below the reporting limit.
DISCHARGE 001 ___.,.__ High Total Chlorine Used, pounds per day -+--Average
_..,._Low 900 800 700
~ 600 c
lii 500 c..
~ 400 c:
- I
~ 300 200 100 0 +-~~--~~~+-~~-1-~~~1--~~-+-~~--1~~~-+-~~-1-~~~+-~~-+~~--1 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Page3of15
2016 Annual Summary Report on Discharge Monitoring at the Diablo Canyon Power Plant DISCHARGE 001 Copper (monthly average, ugll) --+-Permit Limit and Reporting Limit
.- Influent 12
-+--Effluent 10 8
...J 0, 6
- I 4
2 0
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: The analyte was not detected at or above the detection limit for values plotted at zero.
The 6-month median limit (the most conservative limit) is plotted on this chart (this is also the analytical reporting limit).
The daily maximum limit for Copper is SO ug/I.
DISCHARGE 001 Nickel (monthly average, ugll) 35 30
- - - Discharge Permit Limit 25 - - Influent
-+--Effluent 20 ~ Analytical Reporting Limit
...J 0,
- 115 10 5
0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2016 Note: The analyte was not detected at or above the detection limit for values plotted at zero.
The 6-month median limit (the most conservative limit) is plotted on this chart.
The daily maximum limit for Nickel is JOO ug/I.
Note: Several data points on this chart overlap.
Page4of15
2016 Annual Summary Report on Discharge Monitoring at the Diablo Canyon Power Plant DISCHARGE 001 Zinc (monthly average, ugl l) 80 60 ------- Discharge Permit Limit
---..-- Influent 50 --+-- Effluent
~ Analytical Reporting Limit 30 20 0 +..-~---=::,,,.~~~._~~ ......::::....~~~=--~--+-~~~.._~.....:::::~~~~1--~----==~~~--4~~~ ......
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: The analyte was not detected at or above the detection limit for values plotted at zero.
Note: Several data points on this chart overlap.
DISCHARGE 001 Chromium (monthly average, ugll) 12 10
6-Month Median and Analytica l Reporting Limit 8
--..-- Influent
...J --+--Effluent Ci 6
- l 4
2 0
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: The analyte was not detected at or above the detectio n limit for values plotted at zero.
The 6-month median limit and the ana lytica l reporting limit are the same (10 ug/I) and are plotted on this chart.
The daily maxim um limit for chromium is 40 ug/I.
Note: Several data points on this chart overlap.
Page 5of15
2016 Annual Summary Report on Discharge Monitoring at the Diablo Canyon Power Plant pH 8.2 8.1 8.0 7.9 7.8
- c Q.
7.7 7.6
-002 7.5 ~003
-004 7.4 -001P 7.3 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: Several data points on this chart overlap.
Discharge 001 Ammonia (as N, ug/I) 3500 3000 2500 ~ 6-Month Median Limit
--- Influent 2000 Ci -+--Effluent
- I 1500 1000 500 0
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: The analyte was not detected at or above the detection limit for values plotted at zero.
Page 6of15
2016 Annual Summary Report on Discharge Monitoring at the Diablo Canyon Power Plant DISCHARGE 001 F Oil & Grease (Maximum, mg/I) 25.0 c, --e-- Daily Maximum Limit E --0-- Monthly Average Limit 10.0 --+- Sample Result (Maximum)
- - + - Analytica l Reporting Limit 0.0 .....~~--4~~~-1-~~~+-~~-1-~~~-1-~~---+~~~--1-~~---1~~~--+-~~~+-~~--1 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: Values plotted at zero were below the detection limit.
DISCHARGE 001 F Suspended Solids (Maximum, mg/I) 120 100
~Daily Maximum Limit 80 ~Monthly Average Limit
--+-Sample Result (Ma ximum) c, 60 ---+-- Analytical Reporting Limit E
40 20 0
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: Maximum va lues are plotted.
Page 7of15
2016 Annual Summary Report on Discharge Monitoring at the Diablo Canyon Power Plant
___..._ Daily Ma ximum Li mit DISCHARGE 001 N ---0-- Monthly Average Limit Oil & Grease (mg/I) _ . , _ Daily Maximum
--+--Average 25
.._._. Analytica l Reporting Limit 15 o-~~--<r-~~--<">-~~--rc>--~~-o~~~.(""}.~~~o-~~--<r-~~--<">-~~-<e>--~~-o~~~-n a,
E 10 o t==~~~:!=~~~::!===~~=-ii~==:::i~=:::=~-.. ......~...,..~::::t JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: Daily maximum a nd monthly average va lu es overlap a t several points on this plot.
_._.Mo nthly Ave ra ge Limit DISCHARGE 001 N Suspended Solids (mg/I) --6--- Daily Max imum 70 --+--Average 60 --~~--111--~~---~~---1--~~--1--~~---~~--1--~~--f--~~--~~--1--~~--~~~-
50
- 40 Cl E 30 20 10 ..---~-
o +-~~~+-~~~+-~~~+-~~~+-~~~+-~~~+-~~~+-~~~-+-~~~-+-~~~-+-~~~~
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: There is no limit fo r daily max imum valu es. The average valu es a re below the monthly average limit.
DISCHARGE 001 N Settleable Solids (mVI) 3.5 3 --~~--t--~~--..,_~~-->--~~--~~~---~~--1--~~--t--~~--..,_~~-->--~~--~~~--
- 2. 5
~ Daily Maximum Limit 2 - Mo nthly Ave ra ge Limit
- - . . - Daily Maximum E 1.5 --+-Average 0.5 o ~===-=====*=====~===-=====-===:=::j~~==t===~*===~k:::::::===$:====~
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: Values plotted at zero were below the detection limit.
High, average, a nd low values overla p at several points on this plot.
Page8of 15
2016 Ann ual Summary Report on Discharge Monitoring at the Diablo Canyon Power Plant DISCHARGE 001 D Quarterly Metals (ug/I) 90 a Silver 80 *Cadmium
- Chromium 70
- Copper 60 50 Ci
- I 40 30 20 10 0
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: The analyte was not detected at or above the detection limit for values plotted at zero.
DISCHARGE 001 D Quarterly Metals (ug/I) 300 a Nickel
- Lead 250 *Zinc
- Mercury 200 150 100 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 ote: The analyte was not detected at or above the detection limit for values plotted at zero.
Page 9of15
2016 Annual Summary Report on Discharge Monitoring at the Diablo Canyon Power Plant DISCHARGE 001 F 90 Quarterly Metals (ugll) 80 a Silver 70 *Cadmium 60 *Chromium
- Copper 50 Ci
- i 40 30 20 10 0
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: The analyte was not detected at or above the detection limit for values plotted at zero.
DISCHARGE 001 F Quarterly Metals (ugll) 90 a Mercury
- Nickel 80
- Lead 70
- Zinc 60 50 Ci
- i 40 30 20 10 0
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: The analyte was not detected at or above the detection limit for values plotted at zero.
Page JO of 15
2016 Annual Summary Report on Discharge Monitoring at the Diablo Canyon Power Plant DISCHARGE 001 H Quarterly Metals (ugl l) a Silver 90
- Cadmium 80 *Chromium
- Copper 70 60 50 Ci
- J 40 30 20 10 0
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: The an alyte was not detected at or above the detection limit for va lues plotted at zero.
DISCHARGE 001 H Quarterly Metals (ug/I) 90 80 a Mercury
- Nickel 70 *Lead 60
- Zinc 50 Ci
- J 40 30 20 10 0
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: The analyte was not detected at or a bove the detection limit for va lu es plotted a t zero.
Page 11 of15
2016 Annual Summary Report on Discharge Monitoring at the Diablo Canyon Power Plant DISCHARGE 001 L Quarterly Metals (ugll) 90 80 a Silver 70
- Cadmium 60 *Chromium 50
- Copper Ci
- I 40 30 20 10 0
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2015 Note: The analyte was not detected at or above the detection lim it for va lues plotted at zero.
DISCHARGE 001L Quarterly Metals (ugl l) 90 80 70 a Mercury 60 *Nickel 50 *Lead Ci
- I 40 30 20 10 0
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: The analyte was not detected at or above the detection limit for values plotted at zero.
Page 12of15
2016 Annual Summary Report on Discharge Monitoring at the Diablo Canyon Power Plant MONTHLY TOTAL SUSPENDED SOLIDS (Average, mg/I) 35 30 25 - - - - Month ly Average Limit
- 0010 20 - - + - 001G Ci - 001H E 15 10 5
0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: Points on cha rt may overlap. Values plotted at zero were below the detection limit.
MONTHLY TOTAL SUSPENDED SOLIDS (Average, mg/I) 35 30 25 - - - - Mont hly A verage Limit
- 001 J 20 - - + - 001L Ci E 15 - 001M 10 5
0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: Points on cha rt may overlap. Values plotted at zero were below the detection limit.
MONTHLYTOTALSUSPENDEDSOLIDS --e-- Monthly Average Limit (001P & 002}
- 001 P (Average, mg/I) --+-002 35 - 003 30 25
'§, 20 E 15 10 5
0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 ote: Poin ts on chart may overlap. Values plotted at zero we re below the detection limit.
Page 13of15
2016 Annual Summa ry Report on Discharge Monitoring at the Diablo Canyon Power Plant QUARTERLY OIL & GREASE (Average, mg//)
16 14 * * * * * * * * * -
- 0010 12 - 001G 10 - 001H
~ Monthly Average Limit Ci 8 E
6 4
2 0
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: Values plotted at zero were below the detection limit. Less t ha n values are plotted a t t he valu e.
QUARTERLY OIL & GREASE (Average, mg/I) 16 14 * * * * * * * * * * * *
- 001J 12 - 001L 10 - 001 M
~ M on thly Avera ge Limit Ci 8 E
6 4
2 0
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: Values plotted at zero were below the detection limit.
QUARTERLY OIL & GREASE (Average, mg/I) 16 14 * * * * * * * * *
- 001 P 12 - 002 10 - 003 Ci 8 - 004 E ------ Month ly Ave rage Limit 6
4 2
0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Note: Va lues plotted at zero were below the detection limit.
Page 14 of 15
2016 Annual Summary Report on Discharge Monitoring at the Diablo Canyon Power Plant AC UTE AND CHRONIC TOXICITY (6-Month Median) 6 5 * * * * * * * * * * * *
~ 4 Chronic Bioassay Results c: -o--6-mo. Median Acute Limit
-Acute Bioassay Resu lts
~
>. 3
_._ Chronic Limit u
')( 2 - Acute 6-month Median 0
I-1 0
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 2016 Page 15 of15
Annual Discharge Monitoring Report APPENDIX 4
SUMMARY
OF RWMP MONITORING FOR 2016 RWMP 1st Survey 2nd Survey 3rd Survey 4th Survey Stations/ Completion Completion Completion Completion Study Surveys Stations/ Stations/ Stations/ Stations/
per Year Dates Dates Dates Dates Horizontal Band Transects 14 I 4x Apr04 Jun 09 Sep 02 Dec 13 Vertical Band Transects 5 I 4x Apr05 Jun 08 Aug 04 Dec 14 Benthic Stations 8 I 4x Apr07 Jul28 Sep 06 ***Jan 31 , 2017 Fish Observation Transects 12 I 4x May 04 Jun 08 Auq 15 ***Jan 31 , 2017 Bull Kelp Census * /1x n/a n/a n/a Nov03 Temperature Monitoring 24 I** Jan-Mar Apr-Jun Jul-Sep Oct-Dec Diablo Cove census.
- Temperature measured throughout the year at 20-minute intervals (14 intertidal and 10 subtidal stations) .
- Due to adverse ocean conditions, completion of the 4th Survey for Benthic Stations and Fish Observation Transects was delayed into January 2017.