ML20247E540

Confirms 890504 Discussion Re Acceptance of Util Proposed Schedule for Implementation of ATWS Mods.Util Cannot Commit to Submitting Final Design Description Earlier than 890901

ML20247E540
Person / Time
Site:	Oconee
Issue date:	05/15/1989
From:	Tucker H DUKE POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 8905260289
Download: ML20247E540 (2)

Text

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ll l Duke Pouer Company HAL&Tw

<, PO Box 33198 Vice Pmident

Charlotte, N C 28242 Nudear Production (704)373.133l l DUKE POWER May 15, 1989 U. S. Nuclear Regulatory Commission Document Cont ~.ol Desk Washington, D.C. 20555

Subject:

Oconee Nuclear Station Docket Nos. 50-269, -270, and -287 ATWS Implementation Response to Request for Additional Information

Dear Sir:

By a letter dated December 20, 1988, I had transmitted to the NRC the Oconee DSS /AMSAC Conceptual Design Description for the NRC staff review and approval.

In your letter dated November 22, 1988, it was stated that the NRC Staff would review our conceptual design package within 30 days and would provide to Duke either staff approval or disapproval with comments. As indicated in my December 20, 1988 letter, I had anticipated that your 30 day review for the Oconee Conceptual Design Submittal would be complete no later than February 10, 1989, at which time I would have anticipated receiving NRC approval of our conceptual design.

By a March 22, 1989 letter, the NRC Staff indicated that it was continuing to review our proposed plant modification to meet the ATWS rule, 10CFR 50.62 and found that additional information was needed. The March 22, 1989 letter requested that I provide a response within 45 days of receipt of this letter.

This NRC letter lacked a clear statement of approval or disapproval with comments. Members of my staff discussed this concern with the appropriate NRC Staff personnel. During a May 4, 1989 conference call between P. F. Guill of my staff and J. L. Mauck, V. D. Thomas, and D. S. Hood of the NRC staff, it was indicated by the NRC personnel that Duke should consider the March 22, 1989 NRC letter as NRC Staff's acceptance of Oconee's Conceptual Design.

During the May 4, 1989 conference call, the implementation schedule was discussed. The following schedule was proposed by Duke:

Duke submits final design description: September 1, 1989 NRC approval of final design description: February 1, 1990 Unit 1 implementation: During the E0C-13 refueling outage - September 1991 Unit 2 implementation: During the E0C-11 refueling outage - September 1990 f$[2ggg{${ O P

U. S. Nuclear Regulatory Commission

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,. "May 15, 1989 Unit 3 implementation: During the E0C-12 refueling outage - May 1991

.The above proposed schedule was found to be acceptable by the NRC staff. In addition, the NRC staff requested that Duke try to submit the final description earlier than September .1, 1989. This possibility has been looked into, and at this time I cannot commit to an earlier date.

One final note of clarification that was discussed during the May 4, 1989 conference call concerned the NRC staff expectations regarding the March 22, 1989 letter. The NRC staff agreed that Duke did not have to provide responses to the request for additional information, that such responses should be provided within the final design description submittal.

If the above discussion of the May 4, 1989 conference call is contrary to your i understanding, please advise by June 30, 1989. If I do not hear from you by June l 30, 1989, I will consider that this letter accurately documents NRC staff's understanding of the May 4, 1989 conference call and commitments made.

As in the past on this issue, Duke will continue to work aggressively with the staff to assure a timely resolution of all issues and concerns so that the implementation of DSS /AMSAC modification at Oconee will be completed as proposed in this letter.

Very truly yours, l n H. B. Tucker PFG/ATWS/lcs cc: 'Mr. S. D. Ebneter Regional Administrator, RII U. S. Nuclear Regulatory Commission 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 Mr. D. B. Matthews Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Mr. P. H. Skinner .

NRC Resident Inspector i Oconee Nuclear Station l

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