ML20210G317

Forwards Topical Rept Evaluation of Westinghouse Owners Group WCAP-10858, Asmac Generic Design Package. Generic Design Acceptable.Schedules for Addressing plant-specific Features Requested within 30 Days

ML20210G317
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	09/23/1986
From:	Chan T Office of Nuclear Reactor Regulation
To:	Withers B PORTLAND GENERAL ELECTRIC CO.
Shared Package
ML20210G323	List: ML20210G317 ML20210G402
References
GL-85-06, GL-85-6, TAC-59152, NUDOCS 8609250378
Download: ML20210G317 (2)

Text

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Septemb:r 23, 1986

'. DISTRIBUTION Docket No. 50-344 Docket File B. Grimes NRC PDR J. Partlow local PDR N. Thompson PD#3 Rdg. T. Chan Mr. Bart D. Withers T. Novak C. Vogan Vice President 0GC ACRS(10)

Portland General Electric Company E. Jordan Tech Branch 121 S.W. Salmon Street Portland, Oregon 97204

Dear Mr. Withers:

The Nuclear Regulatory Commission (NRC) staff has completed its review of the Westinghouse Owner's Group (WOG) Topical Report WCAP-10858 "ASMAC Generic Design Package" submitted in response to 10 CFR 50.62 " Requirements for Reduction of Risk from Anticipated Transient Without Scram (ATWS) Events for Light-Water-Cooled Nuclear Power Plants." Guidance for meeting the requirements of 10 CFR 50.62 has been previously sent to all licensees in Generic Letter 85-06 " Quality Assurance Guidance for ATWS Equipment That is not Safety Related."

The results of the staff's review of the generic design for ATWS mitigation system actuation circuity (ASMAC) are contained in the attached Safety Evaluation (SE). The staff has concluded that the generic design is acceptable; however, many plant specific details require approval in order to ensure conformance with the rule and are not addressed by the WOG generic design. These details are listed in the SE.

We request that you review the SE, and provide within 30 days of receipt of this letter, your schedules for addressing the plant specific design features discussed in the SE, the request of Appendix A of this SE, and for implementa-tion following the staff's approval of your plant specific design.

This request for information is covered under 0MB clearance number 3150-0011 which expires September 30, 1986.

If you have any questions, please contact me at (301) 492-7136.

Sincerely, Terence L. Chan, Project Manager Project Directorate #3 Division of PWR Licensing-A

Enclosure:

As stated cc: See next page PD#3 PD#3 -k. P V S 'rga CVoan@ TChan 9/ 86 9/13/86 86 8609200378 860723 POR ADOCK 0D00 j4 P

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,_ Mr. Bart D. Withers Portland General Eletric Company Trojan Nuclear Plant cc:

Senior Resident Inspector U.S. Nuclear Regulatory Conmission -

Trojan Nuclear Plant Post Office Box 0 Rainier, Oregon 97048 Robert M.- Hunt, Chairman Board of County Commissioners Columbia County St. Helens, Oregon 97501 William T. Dixon Oregon Department of Energy Labor and Industries Building Room 111 Salem, Oregon 97310 Regional Administrator, Region V U.S. Nuclear Regulatory Commission Office of Executive Director for Operations 1450 Maria Lane, Suite 210 Walnut Creek, California 94596 .

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