ML20214S958

Requests That Util Take Listed Actions Re Three Repts Submitted Concerning Firewater Cooldown Analysis,Per NRC Review & 860917 Telcon.Response to Item 1 Requested within 15 Days of Ltr Date & Item 2 at Time Analysis Submitted

ML20214S958
Person / Time
Site:	Fort Saint Vrain
Issue date:	09/25/1986
From:	Heitner K Office of Nuclear Reactor Regulation
To:	Robert Williams PUBLIC SERVICE CO. OF COLORADO
References
TAC-63576, NUDOCS 8609300147
Download: ML20214S958 (4)

Text

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% ,,, September 25, 1986 Docket No. 50-267 Mr. R. O. Williams, Jr.

Vice President, Nuclear Operations

- Public Service Company of Colorado Post Office Box 840 Denver, Colorado 80201-0840 I

SUBJECT:

REANALYSIS OF FSAR FIREWATER C00LDOWN

Over the past several months, Public Service Company of Colorado (PSC) submitted three reports concerning the firewater cooldown analysis for the

, Fort St. Vrain Nuclear Generating Station (FSV).

These reports include:

- A report dated July 11, 1986, submitted in compliance with 10 CFR 50.72

- LER 86-020 dated August 11,1986(P-86513),and

- A second report, dated September 17, 1986, submitted in compliance with 10 CFR 50.72.

,, Additionally, a discussion on the overall scope of these reports was held with your staff by telephone on September 18, 1986.

I Based on the staff's evaluation of the above reports, and our discussions with your representatives, PSC is requested to take the following actions:

1. Provide the staff with a "best estimate" schedule for resolution of the problems encountered with the firewater cooldown analysis.

Resolution should include:

- Completion of an analysis that supports an acceptable cooldown of the plant for the relevant accident scenarios.

- Revision of plant operating procedures and operator training to be consistent with the above analysis results, and

- Submission of the revised cooldown analysis for NRC review and approval prior to plant startup.

8609300147 860925 PDR ADOCK0500g7 F

Mr. R. O. Williams .

2. If a limit on reactor power, or other operating limits is necessary to assure reactor safety, PSC should propose a suitable license amendment as a basis for continued plant operation. Alternatively, PSC can commit to such limits in writing, with the understanding that the staff will confirm these commitments by Order prior to plant restart.

Please provide Item 1 above within 15 days of the date of this letter.

Item 2 should be provided at the time the completed analysis is submitted for NRC review.

The information requested in this letter affects fewer than 10 respondents; therefore, OMB clearance is not required under P.L.96-511.

Sincerely, Y.

Kenneth L. Heitner, Project Manager Standardization and Special Projects Directorate Division of PWR Licensing-B Office of Nuclear Reactor Regulation cc: See next page

Mr. R. O. Williams Public Service Company of Colorado Fort St. Vrain cc:

Mr. D. W. Warembourg, Manager Albert J. Hazle, Director Nuclear Engineering Division Radiation Control Division Public Service Company Department of Health of Colorado 4210 East lith Avenue P. O. Box 840 Denver, Colorado 80220 Denver, Colcrado 80201 Mr. David Alberstein, 14/159A Mr. J. W. Gahm, Manager GA Technologies, Inc. Nuclear Production Division Post Office Box 85608 Public Service Company of Colorado San Diego, California 92138 16805 Weld County Road 19-1/2 Platteville, Colorado 80651 Mr. H. L. Brey, Manager Nuclear Liccasing and Fuel Division Mr. L. W. Singleton, Manager Public Service Company of Colorado Quality Assurance Division P. O. Box 840 Public Service Company of Colorado Denver, Colorado 80201 16805 Weld County Road 19-1/2 Platteville, Colorado 80651 Senior Resident Inspector U.S. Nuclear Regulatory Commission Mr. R. F. Walker P. 0. Box 840 Public Service Company of Colorado Platteville, Colorado 80651 Post Office Box 840 Denver, Colorado 92138 Kelley, Stansfield & 0'Donnell Public Service Company Building Comitment Control Program Room 900 Coordinator 550 15th Street Public Service Company of Colorado Denver, Colorado 80202 2420 W. 26th Ave. Suite 100-D Denver, Colorado 80211 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission

. 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011 Chairman, Board of County Commissioners of Weld County, Colorado Greeley, Colorado 80631 Regional Representative Radiation Programs Environmental Protection Agency 1800 Lincoln Street Denver, Colorado 80203 l

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4 7 Septemb r 25, 1986 Mr. R. O. Williams 2. If a limit on reactor power, or other operating limits is necessary to assure reactor safety, PSC should propose.a suitable license amendment as a basis for continued plant operation. Alternatively, PSC can commit to such limits in writing, with the understanding that the staff will confirm these comitments by Order prior to plant restart.

Please provide Item 1 above within 15 days of the date of this letter.

Item 2 should be provided at the time the completed analysis is submitted for NRC review.

The information requested in this letter affects fewer than 10 respondents; therefore, OMB clearance is not required under P.L.96-511.

Sincerely, Original signed by Kenneth L. Heitner, Project Manager Standardization and Special Projects Directorate Division of PWR Licensing-B Office of Nuclear Reactor Regulation cc: See next page DISTRIBUTION:

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