ML081020378

Extension of Due Date for Three Month Response to NRC Generic Letter 2008-01, Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems.

ML081020378
Person / Time
Site:	San Onofre
Issue date:	04/10/2008
From:	Scherer A E Southern California Edison Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
GL-08-001
Download: ML081020378 (2)

Text

SOUTHERN CALIFORNIA EDISON" An EDISON INTERNATIONAL@

Company A. Edward Scherer Director Nuclear Regulatory Affairs April 10, 2008 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001

Subject:

Docket Nos. 50-361 and 50-362 Extension of Due Date for Three Month Response to NRC Generic Letter 2008-01, "Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems" San Onofre Nuclear Generating Station, Units 2 and 3

Reference:

NRC Generic Letter 2008-01, "Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and containment Spray Systems" dated January 11, 2008

Dear Sir or Madam:

The Nuclear Regulatory Commission (NRC) issued Generic Letter (GL) 2008-01 (Reference) to request that each licensee evaluate the licensing basis, design, testing, and corrective action programs for the emergency core cooling, decay heat removal, and containment spray systems to ensure that gas accumulation is maintained less than the amount that challenges operability of these systems, and that appropriate action is taken when conditions adverse to quality are identified.

The NRC, in GL 2008-01, requested each licensee to submit a written response in accordance with 10 CFR 50.54(f) within 9 months of the date of the GL to provide the following information: (a) A description of the results of evaluations that were performed pursuant to the requested actions of the GL. This description should provide sufficient information to demonstrate that you are or will be in compliance with the quality assurance criteria in Sections Ill, V, XI, XVI, and XVII of Appendix B to 10 CFR Part 50 and the licensing basis and operating license as those requirements apply to the subject systems of the GL; (b) A description of all corrective actions, including plant, programmatic, procedure, and licensing basis modifications that you determined were necessary to assure compliance with these regulations; and, P.O. Box 128 San Clemente, CA 92674 Document Control Desk a April 10, 2008 (c) A statement regarding which corrective actions were completed, the schedule for completing the remaining corrective actions, and the basis for that schedule.

Additionally, the NRC requested that if a licensee cannot meet the requested response date, the licensee "shall provide a response within 3 months of the date of this GL ...I1 In the 3-month response, the licensee was requested to describe the alternative course of action that it proposes to take, including the basis for the acceptability of the proposed alternative course of action. During a telephone call between Thomas Raidy, Southern California Edison (SCE) Plant Licensing Staff, and Jerry Wermiel, NRC Deputy Director of Safety Systems, Mr.

Wermiel agreed to an extension for the submittal of the "3-month response" to GL 2008- 01 from April 11, 2008, to May 16, 2008. Currently, SCE plans to meet the 9 month response date; however, based upon evolving industry clarification regarding the need for detailed confirmatory walkdowns, SCE has decided to re-evaluate its plans for meeting GL 2008-01 requirements. As a result, SCE spoke with the NRC as stated above to request the additional time to further evaluate the planned course of action and to prepare and submit a 3-month GL 2008-01 response, if necessary.

For additional information, please contact Ms. Linda T Sincerely, Conklin at 949-368-9443.

cc: E. E. Collins, Regional Administrator, NRC Region IV N. Kalyanam, NRC Project Manager, San Onofre Units 2 and 3 C. C. Osterholtz, NRC Senior Resident Inspector, San Onofre Units 2 and 3 J. S. Wermiel, NRC Deputy Director of Safety Systems