ML20066F347

NPDES Noncompliance Notification:On 901124,daily Discharge Chlorine Residual Exceeded Limit.Chlorine Injection Pump Adjusted and Residual Returned within Limits on 901125

ML20066F347
Person / Time
Site:	San Onofre
Issue date:	01/14/1991
From:	Nandy F SOUTHERN CALIFORNIA EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9101230271
Download: ML20066F347 (2)

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Southem Califomia Edison Company l 23 PARKEM STREET IRVINE, CALIFORNIA 92718 -

F. R. N ANDY TELEPHONE uwnero,ucain ucew mo January 14,-1991- ,,,,,.. . <

U S. Nuclear Regulatory Commission -

Attention:  ; Document Control Desk i Washington, D.C.- 20555 Gentlemem -

Subject:

Docket No. 50 362 Report of NPDES Permit Violation, November 1990 San Onofre Nuclear Generating Station, Unit _3 - ,.

Reference:

Letter from H. W. N.ewton (SCE) to A. L. Coe~(California Regional. Water Quality Control -

j Board, San Diego Region), " NPDES Monitoring Report" for Unit 3, dated December 28, 1990  !

Technical Specification 6.16,2.c, Facility Operating License NPF.1S, requires Southern California. Edison (SCE) to report violations of the Nat.onal Pollutant Discharge Elimination System (NPDES) permit. This transmittal reports that an NPDES permit parameter was exceeded'at Unit 3.

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1 There are nine Unit 3 sampling locations for different parameters required by the Unit 3 NPDES permit, t

, in one of the nine locations, the sample includes analyzing for chlorine residual in the combined- j discharge. The referenced letter indicated on November 24 the daily Unit 3 combined discharge chloriae 'i residual exceeded the NPDES permit DAILY. limit of 200 ug/1, by 100 ug/1. 'After the chlorine injection 4 i ~

pump was adjusted, the chlorine residual was returned to within NPDES permit DA!LY limits on1 __

, November 2S, All the nine Unit 3 locations sampled in November for other pr.rameters required by the NPDES permit were found to be within limits.

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i There were no Unit 1 or Unit.2 NPDES violations in November 1990f if you require any additional

, information, please let me know, Very truly yours,-

BUD <

Enclosure ec: J. B. Martin-(Regional Administrator, NRC Region V).

C. W. Caldwell (NRC Senior Resident inspector, Units 1,2 and 3) 9101230271 910114 PDR ADOCK 05000362 s PDR  ;

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December 28,-1990 Mr. Arthur L. Coc  ;

California Regional Water-QualityEcontrol Board )'

San Diego RegionL . _

9771LClairemont_ Mesa 1Doulevard,fSuite:B -i San Diego, California- 92124-1331

Subject:

NPDESLMonitoring Report _

t San Onofre Nuclear Generating Station,_ Unit-31 The NPDES monitoring reports _for San Onofre Unit 3. covering 1the month of November is submitted in accordance with--the requirements of CRWQCB Order 85-13 _(NPDES _ Permit _ No. CA0108181) .

-A summary of the generating unit's. status and.significant analytical results is provided below.-

The_ unit was operational:throughout-the~ month. EAll sampled: water  :

sources were-found to be within permit limits,-_withithe:exceptionL 4 of chlorine residual in the combined. discharge.4 The-residual hadi been verified-within limits on November:17,-.but was-high on.- q November 24. The injection pump _was adjusted andithe: residual 4 verified within limitations the-following" day.

Pursuant to Order No. 85-13,. Reporting-Requirement-12,7your.-

letter. dated June 25, 1985, authorizes _the1following-representative to sign and; certify.all reports requiredLby_this order: Arthur Kneisel, Environmental: Engineer.

I certify underipenalty of law-that=I-have personallylexamined and am familiar with theninformation submitted in~tra attached-document, an based onLmy inquiryLof those individuals immediately responsible for obtaining _the>information, I believe:

the submitted information is true, accurate, and-complete. 'I. am -

aware that-there are significant penalties:for submitting.falso information, including the possibility of-fine,andiimprisonment'.

Si er y,

1. W. Newton ,

Manager',- Site Support Services Enclosures cc: Environmental Protection Agency,-Region IX 4