ML20134J997
| ML20134J997 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 02/05/1997 |
| From: | Gibson G SOUTHERN CALIFORNIA EDISON CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9702130058 | |
| Download: ML20134J997 (2) | |
Text
..e SOUTHf RN CAlllORNIA E![)l!S40lP4
' An IDISO4 JNTl3%ATIONAL Company February 5, 1997 l
l U. S. Nuclear Regulatory Commission l
I Attention: Document Control Desk.
Washington, D. C.
20555 i
i
Subject:
Docket No. 50-361 and 50-362 Report of NPDES. Permit Violation San Onofre Nuclear Generating Station, Units 2 and 3
Reference:
1)
Letter from H. W. Newton (SCE) to Paul Richter (California Regional Water Quality Control Board, San Diego Region), Release From the High Flow
(; RTUD) Waste Neutralizer Make-up Demineralizer H
Tank on 12/7/96 at San Onofre Nuclear Generating Station (SONGS), December 18, 1996 j
Section 3.2 of Appendix B to Facility License Nos. NPF-10 and NPF-15 for San Onofre Nuclear Generating Station (SONGS), Units 2 and 3, require violations of the National Pollutant Discharge Elimination System (NPDES) permit or State Certification (pursuant to Section 401 of the Clean Water Act) to be reported
(
to the NRC by submittal of copies of the reports required by the NPDES permit or certification.
This letter provides a copy of the referenced letter which
-reported one (1) NPDES Permit violation on December 7, 1996, to the California Regional Water Quality Control Board, San Diego j
Region.
If you have any questions, please contact me.
Sincerely l
[<~
(1 f
\\
M i
! regory T. Gibson
/gp G
Manager, Compliance i
Enclosure j
i t!
cc:
L. J. Callan, Regional Administrator, NRC Region IV M. B. Fields, NRC Project Manager, San Onofre Units 2 and 3 J. A. Sloan, NRC Senior Resident Inspector, San Onofre Units 2 and 3'
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9702130058 970205 F
PDR ADOCK 05000361 8
,P,DR jj P. O.lku 128 San Clemente. CA 926744)l28
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\\n / ()tN)\\ / \\ // R\\ liffl\\ 11. L ompum December 18,1996 Mr. Paul Richter California Regional Water Quality Control Board San D; ego Region 9771 Clairemont Mesa Boulevard, Suite B San Diego, California 92124-1331
Subject:
Release From the High Flow Make-up Demineralizer (HFMUD) Waste Neutralization Tank on 12/7/96 at San Onofre Nuclear Generating Station (SONGS)
Dear Mr. Richter:
A release of 42,106 gallons of wastewater with a concentration of approximately 1% sulfuric acid occurred at 0940 through 1041 on 12/7/96 from the High Flow Make-up Demineralizer (HFMUD) Waste Neutralization Tank. The release occurred due to a drain valve being inadvertantly left open by an operator at the Waste Neutralization Tank during the early stages of a regeneration operation at the HFMUD.
.,he wastewater was released.to the. Unit 3..gombined Dis, charge at.a flowrate of approximatek.
T 700 gpm. No Unit 3 across the beach discharge occured during this release. The release was diluted in the Unit 3 Combined Discharge with a flowrate of approximately 800,000 gpm. A combined discharge sa.nple obtained after the incident at 1450 indicated a pH of 8.1. No NPDES effluent limits were excaeded.
This exceeded the 1000 pounds reportable quantity limit for sulfuric acid in the Federal Code of Regulations by 2500 lbs. All notifications to the applicable regulatory agencies were made within a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period.
SCE is evaluating possible corrective actions and will implement as appropriate. Until these changes are in place, an additional operator will be stationed at the HFMUD. If you have any questions on this matter please contact Mary Jane Johnson at (714)-368-6651 or Robert Heckler at (714)-368-6816.
Sinc ely, 4/
. W. Newton Manager, Site Support Services P n nm 128 l
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