ML20087B841
| ML20087B841 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 01/10/1992 |
| From: | Rosenblum R SOUTHERN CALIFORNIA EDISON CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9201130333 | |
| Download: ML20087B841 (3) | |
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Soutburn California Edison Coinpany CJ PAMMC fl ST hflit INVINE, C ALIF OHtSA 9271H January 10, 1992
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Nuclear Regulatory Commission Attention:
Document Control Desk Washington, D. C.
20555 Gentlement
Subject:
Docket No. 50-362
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San Onofre Nuclear Generating Station Unit 3 l
Reference:
December 30, 1991, letter from H. W. Newton (SCE) to A.
L. Coe (California Regional Water Quality Control Board, San Diego Region), Subject NPDES Monitoring Report, San Onofre Nuclear Generating Station, Unit 3.
Section 3.2 of Appendix B to Facility License No. NPF-15 for San Onofre Nuclear Generating Station (SONGS) Unit 3 requires Southern California Edison (SCE) to report violations of the National Pollutant Discharge Elimination System (NPDES) permit.
This letter reports one NPDES permit violation for Unit 3.
The referenced letter is provided as an enclosure.
Unit 3 was operational all month.
On November 16, the circulating water dif f erential. tesaperature exceeded the 20*F limit by 1*F.
This was due to a limitation of the model used to pre. dict allowable operrting temperatures and has since been corrected.
If you have any questiorw, please contact me.
Very truly yours, M4%
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B. Marlin, Regional Administrator, NRC Region V C. W. Caldwell, NRC Senior Resident Inspector, San Onofre Units 1, 2&3 George Kalman, NRC Senior Project Manager, San Onofre Units 1,
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Ascember 30, 199-1 Mr. Arthur L. Coe California RegionM ua*:ce Quality Control Board San Diego Region 9771 Clairemont Mord 130uluvard, Suite B San'Diego, Califerula'91134-1331 Dear Mr. Coes Sub-lect:
NPDEE Nonitoring Report San Onofre Nuclear Generating Station, Unit 3 The NPDES monitoring reports for San Onofre Unit 3 covering the, month of November is submitted in accordance with the I
requirements of CRWQ$8~ Order 85-13 (NPDES Permit No. CA0108101).
A summary of the generating unit's status and significant analytical results :is provided below.
The unit was-ope 2.*ational all month.-.=All sampled water sources were found to be within permit-limits, with one exception.
The.
circulating. water delta tu.mperature exceeded the.20 degree' limit on November 16 by one degree.
The temperature prediction model allowed ~the use of rnunced numbers,-which erroneously predicted--*
the allowable operating temperature.
The' procedure governing this model has bson changed to provide a more conservative approach.
Pursuant to order No. 85-13, Reporting Requirement 12, your letter dated June 25,, 1985, authorizes the-following.
representative to sign and certify-'all. reports required.by-this-d order:
Arthur Kneisel, Environmental Enginehr..
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1 I certify under penalty of law that_I_have personally examined.
and'um familiar with the information submitted in the attached document, and bnsed on my inquiry of those individuals-immediately: responsible for' obtaining the information, I4believe the submitted information is true; accurate,-.-and1 complete. _ I.aml aware that there.are significantLpenalties1for submitting false 5
information,_ including the possibility of fine and imprisonmentd Si e rely, T
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