ML20043G016
| ML20043G016 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 06/12/1990 |
| From: | Nandy F SOUTHERN CALIFORNIA EDISON CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20043G017 | List: |
| References | |
| NUDOCS 9006180423 | |
| Download: ML20043G016 (2) | |
Text
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Southem Califomia Edison Company 23 PARKER STREET
'IRVINE, CALIFORNIA 927 t B.
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t I U. S.-Nuclear Regulatory Commission Document Control Desk
' Washington, D.C.
20555 i'
Subject:
Docket Nos. 50-206,-50-361' and 50-362 Report of NPDES Permit Violation, April 1990 F
San Onofre Nuclear Generating Station, Units 1, 2, and 3 Ret'srence:
- 1) Letter from H. W. Newton (SCE) to A.
L.
Coe-(California Regional Water Quality Control Board,-
San 1Diego-Region), " NPDES Monitoring Report" for Unit 1, dated May 29, 1990
- 2) Letter from H. W. Newton (SCE) to A.
L. Coe-(California Regional Water Quality-Control Board, San Diego Region), " NPDES. Monitoring Report" for Unit 2, dated May 29,'1990 3). Letter from H. W. Newton (SCE) to A.
L.
Coe (California Regional Water Quality Control-Board, San Diego' Region), " NPDES Monitoring Report" for Unit 3,-dated May 29, 1990 1
- As required by Technical Specification-(TS) 6.16.2.c, Provisional Operating License DPR-13, and Section 3.2, Appendix B, Facility Licenses NPF-10 and NPF-15,-enclosed are copies of the three o
referenced letters forwarding the April.1990 National Pollutant
- Discharge Elimination System (NPDES) monitoring reports for Units 1,
2, and-3, respectively.
The Apr l Un t 1 NPDES mon tor ng report s a et t d that on April 5 i
i i
i the combined discharge chlorine residua 1' allowed by the NPDES permit was exceeded by 400 ppb.-
The report also stated that the April 19 and 20 samples from the Mesa sewage treatment plant.each exceeded the settleable solids allowed by the Unit 1 NPDES permit by 97-ml/1.
On each occasion, the remaining 8 water sources sampled were found to be within NPDES permit limits.
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Document Control Desk June 12, 1990 The April Unit 2 NPDES monitoring report stated that on April 12 the combined discharge chlorine residual allowed by the Unit 2 NPDES permit was exceeded by 200 ppb.
The remaining 7 water sources sampled were found to be within NPDES permit limits.
The April Unit 3 NPDES monitoring report stated that on April 12 the combined discharge chlorine residual allowed by the Unit 3 NPDES permit was exceeded by 50 ppb.
The remaining 7 water sources sampled were found to be within NPDES permit limits.
If you require any additional information, please let me know.
Very truly yours, k
/
Enclosures cc:
J.
B. Martin (Regional Administrator, NRC Region V)
C. W.
Caldwell (NRC Senior Resident Inspector, Units 1, 2 and 3)