Text

2019 Annual Report on Discharge Self-Monitoring
	ML20122A151
Person / Time
Site:	Diablo Canyon
Issue date:	02/27/2020
From:	Cortina D; Pacific Gas & Electric Co
To:	; Office of Nuclear Reactor Regulation, State of CA, Regional Water Quality Control Bd
References
	DCL-2020-509
	Download: ML20122A151 (39)
	v • d • e

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P. 0. Box 56 Avila Beach, CA 93424 PG&E Letter DCL-2020-509 Electronic Submission CIWQS Web Application February 27, 2020 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 2019 Annual Report on Discharge Self-Monitoring at Diablo Ci;:inyon Power Plant (DCPP) is provided. This letter, accompanying overview, and a~nual data summary tables and plots, have been attached to the California Integrated Water Quality System (CIWQS) web application data submittal for the period.

Facility Name:

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):

Diablo Canyon Power Plant P.O. Box 56.

Avila Beach, CA 93424 Bryan K. Cunningham Supervisor, Environmental Operations (805) 545-4439

Order No. 90-09, NPDES.No. GA0003751 1st D

QUARTERLY D

ANNUAL

~

4th D

2019 (Annual Reports for DCPP are Jan-Dec)

IBl No (there are no violations to report)

D Yes

PG&E Letter DCL-2020-509 CRWQCB Central Coast Region February 27, 2020 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) WDR/NPDES 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)

. PG&E Letter DCL-2020-509 CRWQCB Central Coast Region February 27, 2020 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 influen( 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 s*ubmitting false information, including the possibility of fine.and imprisonment for knowing. violations.

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 Environmental Operations - Diab/a Canyon Power Plant 2020509/bkc/nrh

PG&E Letter DCL-2020-509 CRWQCB Central Coast Region February 27, 2020

Page 4 cc:

Hardcopy Print-:Out of CIWQS Application Submittal:

Lindsay Merker Acting 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 2019 Summary: Annual SMR ( MONNPDES ) report for 2019 submitted by david cortina (Chemistry and Environmental Services Manager) on 02/28/2020.

Facility Name: PG&E Diablo Canyon Power Plant Waterboard Office:

Region 3 - Central Coast Report Effective Dates:

01/01/2019 - 12/31/2019 No Discharge Periods

.. :Name:

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Diablo M-001 Diablo M-0010 Diablo M-OOlF Diablo M-OOlG Diablo M-OOlH Order Number:

R3-1990-0009 Case Worker:

oates Ccimnierits

+ "

Diablo M-0011 01/01/2019 - 12/31/2019 Plant Seawater Evaporators no longer Diablo M-OOlJ Diablo M-OOlK 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 Diablo M-017 Diablo M-INF Self-Determined Violations No Violations Entered Attachments

,f,1e11Nam~'-~ *

- ..r ** _

.. - 2019 DCPP Annual Report Overview Section.pdf in service.

01/01/2019 - 12/31/2019 Plant Condenser Tube Sheet Leak Detection Dump Tank no longer in service.

01/01/2019 - 12/31/2019 Bio Lab Seawater Supply Line Valve Box not drained during 2019. No effluent discharaed.

01/01/2019 - 12/31/2019 Seawater RO System Slowdown Line not drained during 2019. Discharge rarelv used.

.. fife.:o*e*s(:ripti~n

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'15ile Size:

2019 Annual Summary Report on Discharge Monitoring at 02/27/2020 91609 bytes Diablo Canvon Power Plant Page 1 of 3

-- - 2019 DCPP Annual Rpt Appendix-1 NPDES Dischar es. df - 2019 DCPP Annual Rpt Appendix-2 Tabular&.

Gra hical Data. df - 2019 DCPP Annual Rpt Appendix-3 RWMP Summa. df Cover Letter 1* applirntion/pdf..

Data Summary Analytical Results No Analytical Data Measurements Available/ Reported Calculated Values No Calculated Data Measurements Available / Reported Lab Batches No Lab Batch Data Available/ Reported Questionnaire No Questionnaire Available Certificate DCPP NPDES Permit Order 90-09 Discharge Points Table.

Tabular and Graphical Summaries of Influent and Effluent Monitorin.

Summary of Receiving Water Monitoring Program (RWMP)

Activities.

T<itle*

,Eile.-.Size:_*

02/27/2020 82912 bytes 02/27/2020 291172 bytes 02/27/2020 70400 bytes 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 imprisonment 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 2019 (due 02/29/2020)

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, and enforcement of a federal Page 2 of 3

environmental program and must be true to the best of my knowledge.

Name:

david cortina

Title:

Chemistry and Environmental Services Manager Page 3 of 3

ANNUAL

SUMMARY

REPORT ON DISCHARGE MONITORING AT THE DIABLO CANYON POWER PLANT (NPDES NO. CA0003751) 2019

)

PG&E Letter No. DCL-2020-509 2019 Annual Summary Report on Discharge Monitoring at the Diablo Canyon Power Plant TABLE OF CONTENTS OVERVIEW

SUMMARY

OF MONITORING PROGRAM A.

Monitoring of Plant Influent and Effluent

1. Monitoring Data

2. Facility Operating and Maintenance Manual

3. Laboratories Used to Monitor Compliance

4. Review of Compliance Record and Corrective Actions B.

Monitoring of Receiving Water

1. Ecological Studies at Diablo Canyon

2. In-Situ Bioassay C.

Sodium Bromide Treatment Program NPDES Discharge Points 1

1 1

1 2

2 4

4 5

5 APPENDICES Appendix 1 -

Appendix 2-Appendix 3-Tabular and Graphical Summaries of Influent and Effluent Monitoring Summary of RWMP Monitoring for 2019

2019 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 analytical 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 2019, discharges occurred from all discharge paths except 0011, 001 K, 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. Report Appendix 2 contains monitoring data in tabular and graphical form.

b.

In September 2019, Discharge 001 D (Liquid Radioactive Waste Treatment System) annual grab samples for lithium, boron, and hydrazine were collected and analyzed. Results were ND (<0.05) mg/L lithium, 52.0 mg/L boron, and ND (<0.003) mg/L hydrazine.

2.

Facility Operating and Maintenance Manual Pacific Gas and Electric Company (PG&E) maintains a multiple volume Plant Manual at DCPP that contains 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 arei conducted to assure that the manual remains valid, current, and complete for the facility.

1

3.

Laboratories Used to Monitor Compliance The following laboratories were used during 2019 for monitoring compliance. The laboratories are certified by the California Environmental Laboratory Accreditation Program (ELAP) for the analyses performed. To satisfy requirements of the ELAP biannual certification process, these laboratories take part in annual performance evaluation testing.

a.

PG&E Chemistry Laboratory, DCPP, Avila Beach, California (EPA Lab# CA01036)

b.

Aquatic Bioassay Consulting Laboratories, Ventura, California (EPA Lab# CA00021)

c.

ALS Environmental, Kelso, Washington (EPA Lab # WA00035)

d.

TestAmerica, Inc., Earth City, Missouri (EPA Lab# M000054)

e.

Abalone Coast Analytical, San Luis Obispo, California (EPA Lab# CA01543)

f.

E. S. Babcock & Sons, Inc., Environmental Laboratories, Riverside; California (EPA Lab# CA00102)

g.

BSK Associates, Fresno, California (EPA Lab# CA00079)

h.

TestAmerica, Inc., Savannah, Georgia (EPA Lab# GAOOOp6)

i.

Weck Laboratories, Inc., Industry, California (EPA Lab# CA00211)

4.

Review of Compliance Record and Corrective Actions

a.

Circulating Water Chlorinatiori/Bromination Monitoring The 2019 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.

Date Unit and Number of Cause Corrective Action Readings Replaced 01/01/19 to Unit-1 Low monitor sample flow.

Monitor cleaned and 01/02/19 6 Readings returned to service 01/11/19 to Unit-2 Erratic monitoring peaks Monitor cleaned and 01/16/19 15 Readings due to monitor biofouling.

returned to service.

01/18/19 to Unit-2 Monitor biofouling.

Monitor cleaned and 01/19/19 7 Readings returned to service.

01/21/19 to Unit-2 Sample pump failure.

Replaced sample pump.

01/22/19 4 Readings 01/27/19 to Unit-2 Monitor biofouling.

Monitor cleaned and 02/01/19 15 Readings returned to service.

02/20/19 to Unit-2 Monitor biofouling.

Monitor cleaned and 02/25/19 7 Reading returned to service.

02/26/19 to Unit-2 Monitor Failed QC Check.

Monitor re-calibrated and 02/27/19 7 Readings returne~ to service.

2

03/02/19 to Unit2 Monitor biofouling.

Monitor cleaned and 03/03/19 6 Readings returned to service.

03/11/19 to Unit-2 Monitor biofouling.

Monitor cleaned and 03/12/19 5 Readings returr\\ed to service.

03/17/19 Unit-2 Monitor biofouling.

Monitor cleaned and 3 Readings returned to service.

03/22/19 to Unit-2 Monitor biofouling.

Monitor cleaned and 03/23/19 6 Readings returned to service.

04/12/19 Unit-1 Monitor biofouling.