DCL-02-020, Supplement 1 to License Amendment Request 01-04 Revision to Technical Specifications 3.9.4 Containment Penetrations

Supplement 1 to License Amendment Request 01-04 Revision to Technical Specifications 3.9.4 Containment Penetrations

ML020710592
Person / Time
Site:	Diablo Canyon
Issue date:	02/26/2002
From:	Rueger G Pacific Gas & Electric Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
DCL-02-020
Download: ML020710592 (3)

Text

SPacificGas and Electric Company,.

Gregory M. Rueger US Mail:

Senior Vice President- Mail Code B32 Generation and Pacific Gas and Electric Company Chief Nuclear Officer P0 Box 770000 February 26, 2002 San Francisco, CA 94177-0001 Overnight Mail Mail Code B32 Pacific Gas and Electric Company 77 Beale Street, 32nd Floor PG&E Letter DCL-02-020 San Francisco, CA 94105-1814 415.973.4684 Fax: 415.973.2313 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 Docket No. 50-275, OL-DPR-80 Docket No. 50-323, OL-DPR-82 Diablo Canyon Units I and 2 Supplement 1 to License Amendment Request 01-04 Revision To Technical Specifications 3.9.4 Containment Penetrations

Dear Commissioners and Staff:

On October 17, 2001, in Letter DCL-01-104, PG&E submitted License Amendment Request (LAR) 01-04, "Revision To Technical Specifications 3.9.4 Containment Penetrations." That LAR proposed to revise the limiting condition for operation for Technical Specification (TS) 3.9.4, "Containment Penetrations," to allow the equipment hatch, both personnel air lock doors and both emergency air lock doors to remain open, and penetration flow path(s) providing direct access from the containment atmosphere to the outside atmosphere to be unisolated under administrative control, during core alterations and movement of irradiated fuel assemblies.

Subsequent to submittal of LAR 01-04, the NRC asked if weather conditions could necessitate closure of the containment equipment hatch. Although the historic severe weather patterns for Diablo Canyon Power Plant do not require consideration of tornados as part of the design basis, severe weather conditions might occur at the site that could necessitate closure of the equipment hatch. To address this concern PG&E will establish procedural direction requiring closure of the equipment hatch during any such severe weather conditions. Guidance will also be included in the bases for TS 3.9.4 in accordance with TS 5.5.14, as part of implementation of the license amendment.

This additional commitment does not effect the results of the safety evaluation and the no significant hazards determination previously transmitted in PG&E A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Cattaway

• Comanche Peak

• Diablo Canyon a Palo Verde

• South Texas Project

• Wolf Creek

Document Control Desk February 26, 2002 Page 2 Letter DCL 01-104, "License Amendment Request 01-04, 'Revision to Technical Specification 3.9.4 Containment Penetrations,'" dated October 17, 2001.

Sincerely, Greg ry M. Kuer Senior Vice President - Generation and Chief Nuclear Officer cc: Edgar Bailey, DHS Ellis W. Merschoff David L. Proulx Girija S. Shukla Diablo Distribution A member of the STARS (Strategic Teaming and Resource Sharing) Alliance CaLlaway

• Comanche Peak 9 DiabLo Canyon

• Paio Verde

• South Texas Project 9 Wolf Creek

PG&E Letter DCL-02-020 UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION

) Docket No. 50-275 In the Matter of ) Facility Operating License PACIFIC GAS AND ELECTRIC COMPANY ) No. DPR-80

)

Diablo Canyon Power Plant ) Docket No. 50-323 Units 1 and 2

) Facility Operating License

) No. DPR-82 AFFIDAVIT Gregory M. Rueger, of lawful age, first being duly sworn upon oath says that he is Senior Vice President - Generation and Chief Nuclear Officer of Pacific Gas and Electric Company; that he has executed Supplement 1 to License Amendment Request 01-04 on behalf of said company with full power and authority to do so; that he is familiar with the content thereof; and that the facts stated therein are true and correct to the best of his knowledge, information, and belief.

Gregory"VA. Rueger Senior Vice President - Generation and Chief Nuclear Officer Subscribed and sworn to before me thisl-,-day of February, 2002 AMY EMIKO DONG Notary P lic . Commission # 1206749 County of ýQ-4. 'ZZ---S S*

NotyPubric- Califomra San Hancism-County State of California A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway

• Comanche Peak

• Diablo Canyon e Palo Verde

• South Texas Project

• Wolf Creek