ML18139A566

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Responds to NRC 800905 Request for Info Re TMI Action Plan Requirement Preliminary Clarification.Westinghouse Owners Group Meeting W/Nrc Will Determine Addl Effort Required & re-evaluation Will Be Submitted.Deadline Unrealistic
ML18139A566
Person / Time
Site: Surry, North Anna  Dominion icon.png
Issue date: 10/02/1980
From: Sylvia B
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To: Harold Denton, Eisenhut D
Office of Nuclear Reactor Regulation
References
767, NUDOCS 8010070378
Download: ML18139A566 (2)


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  • VIRGINIA ELECTRIC AND PowER COMPANY RICHMOND, VIBGIN .[A 23261 October 2, 1980 Mr. Harold R. Denton, Director Serial No. 767 Office of Nuclear Reactor Regulation NO/DWL:jmj Attn: Mr. Darrell G. Eisenhut, Director Docket Nos. 50-280, 50-281 Division of Licensing _50-338, 50-339 U. S. Nuclear Regulatory Cormnission License Nos. DPR-32, DPR-37 Washington, D.C. 20555 NPF-4, NPF-7

Dear Mr. Denton:

RESPONSE TO TMI ACTION PLAN REQUIREMENTS II.K.3.30/31 AND I.C.l SURRY AND NORTH ANNA POWER STATIONS In response to the September 5, 1980 letter from D. G. Eisenhut, NRC, on Preliminary Clarification of TMI Action Plan Requirements, the following information is provided.

Item II.K.3.30 of the subject letter requires that a detailed outline of the scope and schedule for revised small-break LOCA methods be submitted to the NRC by October 1, 1980. Vepco's position on this requirement is that the current Westinghouse small-break LOCA model used to analyze the Surry and North Anna nuclear units ts already in conformance with 10CFR Part 50, Appendix K. However, Westinghouse has indicated that they will address the schedule for completion of this requirement by January 1, 1982. Accordingly, Westinghouse will provide a detailed outline of the scope and schedule of this effort by means of a 9irect letter to the NRC on or about the October 1, 1980 deadline.

Item II.K. 3. 31 requires a plant specific small-break LOCA re-analysis using the revised model of item II.K.3.30. If the results of the new Westinghouse model (and subsequent NRC review and approval) indicate that the present small-break LOCA analyses for the Surry and North Anna nuclear units are not in con-formance with 10CFR Part 50.46, new plant specific analysis utilizing the new and approved Westinghouse model will be submitted to the NRC in accordance with NRC schedules.

Item I.C.l requires a re-analysis o:(: transients, accid*ents, an.d in?dequate core cooling and preparation of guidelines for development of emergency procedures.

This information is to be received by the NRC by January 1, 1981. *Currently, Vepco is pursuing this requirement through the Westinghouse Owners Group.

The Owners Group has submit*ted emergency procedure guidelines for NRC review and comment (Westinghouse to NRC, letter OG-37 dated July 15, 1980). To date, \

no feedback has been received by the Owners Group on this effort. ~'J;':J\~J

~

e VIRGINIA ELECTRIC AND Pow1rn CoMPA]'IY TO Mr. Harold R. Denton, Director 2 During the regional meeting held September 22, 1980 to discuss the revisions and clarifications of TMI Action Plan requirements, the Westinghouse Owners Group expressed their willingness to meet*with the NRC to further clarify the requirements of I.C.l. Such a meeting is currently being pursued by the Owners Group for the purpose of determining what additional effort is required

  • to satisfy the requirements of I. C.1.

It is Vepco's position that if significant additional effort is required, the January 1, 1981 deadline is unrealistic. The reason for this position is that Westinghouse ~as informed Vepco (and other Owners Group members) that their work load through January 1, 1981, could not support any significant revisions or additional analysis regarding the previously submitted emergency procedure guidelines. A re-evaluation of our position will be provided to you following Westinghouse Owner Group discussions with the NRC regarding the status of the currently submitted emergency procedure guidelines.

Very truly yours,

~4~~

B. R. Sylvia Manager - Nuclear Operations and Maintenance cc: Mr. Steven A. Varga, Chief Operating Reactors Branch No. 1 Division of Licensing Mr. Robert A. Clark, Chief Operating Reactors Branch No. 3 Division of Licensing Mr. B. Joe Youngblood, Chief Licensing Branch No. 1 Division of Licensing