ML13319B051

Clarifies Info Re Schedule for Implementing Operation & Surveillance Requirements,Described in ,For Permanently Defueled Condition.Foam Suppression Sys Will Remain Operable Per TS as Long as Oil in Reservoir

ML13319B051
Person / Time
Site:	San Onofre
Issue date:	03/03/1993
From:	Marsh W Southern California Edison Co
To:	NRC/IRM
References
NUDOCS 9303080019
Download: ML13319B051 (3)

Text

ACCELERATE DOCUMENT DISTI1UTION SYSTEM REGULATOW INFORMATION DISTRIBUTIONWSTEM (RIDS)

ACCESSION NBR:9303080019 DOC.DATE: 93/03/03 NOTARIZED: NO DOCKET #

FACIL:50-206 San Onofre Nuclear Station, Unit 1, Southern Californ 05000206 AUTH.NAME AUTHOR AFFILIATION MARSH,W.C.

Southern California Edison Co.

RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

R

SUBJECT:

Clarifies info re schedule for implementing operation &

surveillance requirements,described in 920921 ltr,for permanently defueled condition.Foam suppression sys will D

remain operable per TS as long as oil in reservoir.

DISTRIBUTION CODE: A001D COPIES RECEIVED:LTR ENCL SIZE: ____

S TITLE: OR Submittal: General Distribution NOTES:License Exp date in accordance with 10CFR2,2.109 ; ONDD PD ; 05000206 ONDD LA ; DUDLEY,R.

A RECIPIENT COPIES RECIPIENT COPIES D

ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL ONDD:HYLTON, 1

ONDD:WEISS,S 1

D BROWN,S 2

INTERNAL: ACRS 6

NRR/DE/EELB 1

S NRR/DORS/OTSB 1

NRR/DRCH/HICB 1

3 NRR/DSSA/SCSB 1

NRR/DSSA/SPLB 1

3 NRR/DSSA/SRXB 1

NUDOCS-ABSTRACT 1

3 OC/LFMB 1

OGC/HDS3 1

_TIE 01 1

EXTERNAL: NRC PDR 1

NSIC 1

NOTES:

3 R

I D

S A

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NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, S

ROOM P1-37 (EXT. 504-2065) TO ELIMINATE YOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED: LTTR 25 ENCL

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Southern California Edison Company 23 PARKER STREET IRVINE, CALIFORNIA 92718 March 3, 1993 WALTER C. MARSH TELEPHONE ASSISTANT MANAGER, (714) 454-4403 NUCLEAR REGULATORY AFFAIRS U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D. C. 20555 Gentlemen:

Subject:

Docket No. 50-206 Implementation Schedule for Operation and Surveillance Requirements for the Permanently Defueled Condition, San Onofre Nuclear Generating Station, Unit 1

Reference:

Letter, R. M. Rosenblum (SCE) to Document Control Desk (NRC),

"Operation and Surveillance Requirements for Permanently Defueled Condition for San Onofre Nuclear Generating Station, Unit 1,"

September 21, 1992.

This letter provides clarifying information regarding our schedule for implementing the San Onofre, Unit 1 (SONGS 1) operation and surveillance requirements that were described in the reference letter for the permanently defueled condition. The referenced letter discussed our plans for maintaining SONGS 1 in accordance with existing Technical Specification requirements until Permanently Defueled Technical Specifications (PDTS) are approved by the NRC.

That letter also described additional administrative controls that are being implemented to ensure adequate cooling of the spent fuel pool (SFP) during the defueled condition.

Our schedule for implementing the operation and surveillance requirements for the permanently defueled condition is as follows:

1.

All existing Technical Specification requirements that are applicable to the defueled condition will remain in force until the PDTS are in place. With the exception noted in Item 2 below, the plant configuration changes and associated Technical Specification clarifications that are described in Enclosures 1 and 2 of the referenced letter are scheduled for implementation during approximately the first 90 days of the defueled condition.

2.

The Foam Suppression System will remain operable in accordance with Technical Specifications 3.14.3 and 4.15.3 as long as oil is in the turbine generator lube oil reservoir and conditioner. Oil may remain in the system for a limited time during the defueled condition. We are evaluating the possibility of using the turbine generator as a synchronous condenser in the future. This option is being evaluated as a means of maintaining the reliability of the San Diego Gas and Electric power grid.

9303060019. 930303.

PDR ADOCK 05000206 P.

PDR

Document Control Desk

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3.

The administrative controls concerning SFP temperature, cooling, and makeup water sources which are described in the body of the referenced letter will be in place immediately upon completion of the reactor defueling (currently scheduled for March 7, 1993).

If you have any questions on this matter, please let me know.

Very truly yours, cc:

J. B. Martin, Regional Administrator, NRC Region V S. W. Brown, NRC Project Manager, San Onofre Unit 1 C. W. Caldwell, NRC Senior Resident Inspector, San Onofre Units 1, 2&3 R. F. Dudley, Jr., Section Chief, Non-Power, Decommissioning, and Environmental Project, Directorate of Reactor Projects - 3, 4 and 5