ML20207S546

Forwards Safety Evaluation Supporting Util 850131,0318 & 26 & 860709 Submittals Re Corrosion Effects of Chlorine in Primary Coolant Sys

ML20207S546
Person / Time
Site:	Fort Saint Vrain
Issue date:	03/11/1987
From:	Heitner K Office of Nuclear Reactor Regulation
To:	Robert Williams PUBLIC SERVICE CO. OF COLORADO
Shared Package
ML20207Q712	List: ML20207S546 ML20207S547
References
TAC-57248, NUDOCS 8703200014
Download: ML20207S546 (3)

Text

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, ' March 11, 1987

,. Docket No. 50-267 I h.

Mr. R."0. Williams "Jr.

.Vice. President, Nuclear Operations ~

-Public Service Company of Colorado -

'P.'O. Box 840- .

Denver, Colorado 80201-0840

Dear Mr. Williams:

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SUBJECT:

'; CORROSION EFFECTS OF CHLORINE IN FORT ST. VRAIN PRIMARY COOLANT

' SYSTEM

', , We 'ha've completed ~our review of your submittals dated January 31 March 18 and

,- :26f 1985, and July 9,'1986, concerning chlorine in the Fort St 'Vrain primary

. y coolant system. Based on this review the staff has concluded that the .

- , requirements for materials resistant to chlorine-induced corrosion in critical

control rod drive mechanisms and helium circulators have been satisfied.

Additionally. the staff concludes that the metallurgical and failure consequence evaluation of the remaining components is acceptable.

Our Safety Evaluation'is enclosed. Our Safety Evaluation related to the sources of chlorine in the primary coolant' system was provided to you by letter dated _ November 13, 1986.

-Sincerely, original signed by Kenneth L. Heitner, Project Manager gg32ggock E50$o267 Standardization and Special p PDR Projects Directorate Division of PWR Licensing-B Office of Nuclear Reactor Regulation

Enclosure:

As stated o cc w/ enclosure:

, See next page b IBUTION:

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%, w / March 11, 1987 Docket No. 50-267 Mr. R. O. Williams, Jr.

Vice President, Nuclear Operations Public Service Company of Colorado P. O. Box 840 Denver, Colorado 80201-0840

SUBJECT:

CORROSION EFFECTS OF CHLORINE IN FORT ST. VRAIN PRIMAR SYSTEP We have completed our review of your submittals dated January 31, March 18 and 26, 1985, and July 9,1986, concerning chlorine in the Fort St. Vrain primary coolant system.

Based on this review the staff has concluded that the recuirements for materials resistant to chlorine-induced corrosion in critical control rod drive mechanisms and helium circulators have been satisfied.

Additionally, the staff concludes that the metallurgical and failure consequence evaluation of the remaining components is acceptable.

Our Safety Evaluation is enclosed. Our Safety Evaluation related to the sources of chlorine in the primary coolant system was provided to you by letter dated Noven,ber 13, 1986.

Sincerely, u .x . Tv Kenneth L. Heitner, Project Manager Standardization and Special Projects Ofrectorate Division of PWR Licensing-8 Office of Nuclear Reactor Regulation

Enclosure:

As stated cc w/ enclosure:

See next page

Pr. R. O. Williams Public Service Corrpany of Colorado Fort St. Vrain cc:

Pr. D. W. Warembourg, Manecer Albert J. Hazle, Director Nuclear Engineering Division Padiation Control Division Public Service Company Department of Health of Colorado 4210 East lith Avenue P. O. Box E40 Denver, Colorado 80220 Denver, Colorado 80201 Mr. Davic Alberstein, 14/159A Pr. R. O. Williams, Acting Panager GA Technologies, Inc. Auclear Production Division Post Office Box 85608 Public Service Company of Coloradc San Diege, California 92138 16805 Weld County Road 19-1/?

Platteville, Colorado 80651 Mr. H. L. Brey, Panager huclear Licensing and Fuel Division Mr. P. F. Tomlinson, Panager Public Service Company of Colorado Quality Assurance Division P. O. Box 840 Public Service Company of Colorade Denver, Colorado 80201 16805 Keld County Road 19-1/?

Platteville, Colorado 80651 Senior Resident Inspector l U.S. Nuclear Regulatory Commission Mr. R. F. Walker P. 0. Box 840 Public Service Company of Colorado

, Platteville Colorado 20f.51 Post Office Box 840 Denver, Colorado 80201-0840 Kelley, Stansfield & 0'Donnell Public Service Company Building Comitment Control Program Room 900 Coordinator 550 15th Street Public Service Company of Colorado Denver, Colorado 8020? 2420 W. P6th Ave. Suite 100-D i Denver, Colorado 80211 Regional Administrator, Region IV U.S. Nuclear Regulatory Comission 611 Ryan Plaza, Drive, Suite 1000 Arlington, Texas 76011 Chairman, Board of County Comissioners of Weld Courty, Colorado Greeley, Colorado 80631 Regional Representative Radiation Programs Environmental Protection Agency 1 Denver Place 99918th Street, Suite 1300 Denver, Colorado 8020?-2413 i