ML13330A251

Forwards Fr Notice Re Extension of Time for Completion of Fire Protection Mods from 800719 to 811117.Description of Mods Encl

ML13330A251
Person / Time
Site:	San Onofre
Issue date:	02/13/1981
From:	Harold Denton Office of Nuclear Reactor Regulation
To:	Dietch R Southern California Edison Co
Shared Package
ML13330A252	List: ML13330A251 ML13330A253
References
TAC-48143 LSO5-81-02-025, LSO5-81-2-25, NUDOCS 8103200373
Download: ML13330A251 (6)

Text

DISTRIBUTION Docket files NRCPDR L PDR O

Docket No. 50-206 O#5L r ading LS05-81-02-025DEisenhut one RPurple ACRS(16 HDenton OPA, CMiles ECase.

RDiggs Mr. R. Dietch TNovak Vice President RTedesco TERA Nuclear Engineering & Operations GLainas Southern California Edison 1shinski Drutchffeld 2244 Walnut Grove Avenue HSmithC P. 0. Box 800 TWambach.

Rosemead, California 91770O Roseead Calforia 9770SNow ickif

Dear Mr. Dietch:

We have completed our review of your letter dated February 10, 1981, which requests extension of the completion dates of eight modifications for your fire protection system until November 17, 1981. Your letter explains that these eight modifications had been approved in our Fire Protection Safety Evaluation Report (FPSER) dated July 19, 1979. In the FPSER we had accepted implementation dates to be in conjunction with related modifications resulting from the Systematic Evaluation Program (SEP) which would be after April 30, 1982.

The new regulation 10 CFR 50.48 paragraph d(2), requires that the modifications be imple mented 12 months after approval, i.e., by July 19, 1980. You have asked that the implementation dates for these eight modifications be in conformance with 10 CFR 50.48 paragraph (c)(2), ibe., November 17, 1981.

Prior to the publication of the new 10 CFR 50.48 we understand that you were proceeding with your fire protection program in accordance with our guidance and previously approved schedules. A large number of the fire protection modifications have been-implemented and measures have been taken to assure safe shutdown by the installation of an additional source of offsite power.,-modifications to the station air system, provision for isolation capability of affected control systems and development of station procedures.

Based on our review, we conclude that you have shown good cause why the implementation schedule for the eight items described in Enclosure 1 should be November 17, 1981, and that the public health and safety is not adversely affected by such extension.

Accordingly, pursuant to 10 CFR 50.48(d) the date for the implementation of the eight items described in Enclosure 1 is hereby extended to November 17,'1981.

8103200 33

Mr. R. Dietch

- 2 A copy of the related Notice of Extension, which is being forwarded to the Office of the Federal Register for Publication, is provided as Enclosure 2.

Sincerely, Original Signed St LEG. Cm arold R. Denton, Director ffice of Nuclear Reactor Regulation

Enclosures:

1. Table of Fire Protection Modifications

2. Notice of Extension cc w/enclosures:

See next page 2 /Z 8 OFFICEO ORB#

0 #5:DL

1. 5:DL A A:DL D:DL SURNAMEo

dn TWambac eld Anas 1)EisenhuT DATE) 2/I /81 2//1/81 2/11/81 2/1/81 2/ /8 NRC FORM 318(10/0o)NRCM 240 OFFICIAL RECORD COPY

• USGPO 1980-329-824

UNITED STATES

/

NUCLEAR REGULATORY COMMISSION 1

0 WASHINGTON, D. C. 20555 41' February 13, 1981 Docket No. 50-206 LS05-81-02-025 Mr. R. Dietch Vice President Nuclear Engineering & Operations Southern California Edison 2244 Walnut Grove Avenue P. 0. Box 80G Rosemead, California 91770

Dear Mr. Dietch:

We have completed our review of your letter dated February 10, 1981, which requests extension of the completion dates of eight modifications for your fire protection system until November 17,,1981. Your letter explains that these eight modifications had been approved in our Fire Protection Safety Evaluation Report (FPSER) dated July 19, 1979. In the FPSER we had accepted implementation dates to be in conjunction with related modifications resulting from the Systematic Evaluation Program (SEP) which would be after April 30, 1982. The new regulation 10 CFR 50.48 paragraph d(2), requires that the modifications be imple mented 12 months after approval, i.e., by July 19, 1980. You have asked that the implementation dates for these eight modifications be in conformance with 10 CFR 50.48 paragraph (c)(2), i.e., November 17, 1981.

Prior to the publication of the new 10 CFR 50.48 we understand that you were proceeding with your fire protection program in accordance with our guidance and previously approved schedules. A large number of the fire protection modifications have been implemented and measures have been taken to assure safe shutdown by the installation of an additional source of offsite power, modifications to the station air system, provision for isolation capability of affected control systems and development of station procedures.

Based on our review,,we,conclude that you have shown good cause why the implementation schedule for the eight items described in Enclosure 1 should be November 17, 1981, and that the public health and safety is not adversely affected by such extension. Accordingly, pursuant to 10 CFR 50.48(d) the date for the implementation of the eight items described in Enclosure 1 is hereby extended to November 17, 1981.

Mr.'R. Dietch 2

February 13, 1981 A copy.of the related Notice of Extension, which is being forwarded to the Office of the Federal Regitter for Publication, is provided as Enclosure 2.

Since ely, Harold R. Denton, Director Office of Nuclear Reactor Regulation

Enclosures:

1.

Table of Fire Protection Modifications

2. Notice of Extension cc w/enclosures:

See next page

Mr. February 13, 1981 cc w/enclosures:

Charles R. Kocher, Assistant Director, Criteria and Standards General Counsel Division Southern California Edison Company Office of Radiation Programs Post Office Box 800 (ANR-460)

Rosemead, California 91770 U. S. Environmental Protection Agency David R. Pigott Washington, D. C. 20460 Samuel B. Casey Chickering & Gregory U. S. Environmental Protection Three Embarcadero Center Agency Twenty-Third Floor Region IX Office San Francisco, California 94111 ATTN:

EIS COORDINATOR 215 Freemont Street Jack E. Thomas San Francisco, California 94111 Harry B. Stoehr San Diego Gas & Electric Corrpany P. 0. Box 1831 San Diego, California 92112 Resident Inspector c/o U. S. NRC P. 0. Box AA Oceanside, California 92054 Mission Viejo Branch Library 24851 Chrisanta Drive Mission Viejo, California 92676 Mayor City of San Clemente San Clemente, California 92672 Chai rman Board of Supervisors County of San Diego San Diego, California 92101 California Department of Health ATTN: Chief, Environmental Radiation Control Unit Radiological Health Section 714 P Street, Room 498 Sacramento, California 95814

.ENCLOSURE'17 FIRE PROTECTION MODIFICATIONS SER*

Completion Item No.

Description Date 3.1.5 Water Suppression Systems The deluge system protecting the hydrogen seal oil unit will be replaced with an automatic foam or water suppression system 11/17/81 3.1.11 Fire Barriers

b. Fire stops will be provided for cable trays at the entrances to the pipe tunnel.

11/17/81

d. The roof and door of the oil storage shed in the east feedpump area of the turbine building will be replaced to provide a 3-hour fire rating.

11/17/81 3.1.12 Fire Dampers

b. Fire dampers will be provided in the ventilation openings from the 480 volt switchgear room.

11/17/81

c. Fire dampers will be provided in the ventilation penetrations to the battery rooms.

11/17/81 3.1.13 Fire Barrier Penetrations (3) Cable penetrations for the 480 volt switchgear room.

11/17/81 (4) Cable penetrations from the dc switchgear room to the administration and control building.

11/17/81 3.1.14 Water Damage Protection Water spray shields will be provided for electrical equipment in the 4160 and 480 volt switchgear rooms to prevent damage due to the use of hose streams to combat fires in cable trays above equipment.

• SER -

Fire Protection Safety Evaluation Report dated July 19, 1979.