ML20096H188

Suppl to 920319 Application for Amend to License DPR-34, Requesting Early Consideration of Decommissioning TS Provision That Deletes Current Limitations on Temp of Prestressed Concrete Reactor Vessel Liner Cooling Water Sys

ML20096H188
Person / Time
Site:	Fort Saint Vrain
Issue date:	05/19/1992
From:	Crawford A PUBLIC SERVICE CO. OF COLORADO
To:	Weiss S NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), Office of Nuclear Reactor Regulation
Shared Package
ML20096H192	List: ML20096H188 ML20096H196
References
P-92196, NUDOCS 9205270129
Download: ML20096H188 (5)

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( Public Service- =;4'L.a f P O DOX 840 16805 WCR 191/2, Platteville, CO 80651 DENVER Co 80201 OS40 May 19,1992 A. Clegg Crawford Fort St. Vrain M,,['Ef"*' ,,,

Unit No. I P-92196 U. S. Nuc1 car Regulenry Commission ATIN: Document Control Desk Washington, D. C. 20355 _

ATrN: Dr. Seymour 11. Weiss, Director Non-Power Reactor, DecommiWoning and Environmental Project Directorate g Docket No. 50 267 SU11J11CT: Request for Early Approval of One Provision of the l'ecommissioning Technical Specl0 cations R11FIIRiiNCll: PSC Letter, Crawford to Weiss, dated March 19, 1992 (P-92115)

Dear Dr. Weiss:

This letter supplements Public Service Company of Colorado's (PSC's) previous request for approval of the Fort St. Vrain (FSV) Decommissioning Technical Speci6 cations (DTS), submitted via the referenced letter. PSC specifically requests early consideration of the DTS provision that deletes current ilmitations on temperatures of the Prestressed Concrete Reactor Vessel (PCRV) liner cooling water system.

PCRV liner cooling water system temperature limits are currently provided in LCO 4.2.15 in the FSV Technical Speci6 cations. The DTS do not include requirements for PCRV liner cooling water system temperatures. PSC requests that the NRC take early action to approve this provision of the DTS by approving the deletion of LCO 4.2.15 from the current FSV Technical Specifications, t

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yam i i m P-92196 May 19,1992 Page 2 PSC ttquests early consideration of the deletion of PCRV temperature limits to reduce the heat being added to the Reactor fluilding, and thereby allow a cooler work environment for workers in that area. LCO 4.2.15 currently includes an 85 decree F mimmum temperature limit on average PCRV liner cooling water system inlet and outlet temperatures. This requires the addition of heat from steam coils, which results in uncomfortably hot conditions for workers on the refueling Goor of the Reactor Building. These hot conditions are further degraded by warm summer weather and are not conducive to peak personnel performance during the remaining _

fuel removal and plant closure activities.

The temperature limits in LCO 4.2.15 minimind temperature variations within the PCRV concrete during the entire rang or operating and shutdown conditions, thereby ensuring its structural integrity. PSC has completed the removal of all nuclear fuel from the PCRV, so there is no longer a need for the PCRV to contain the Gssion products that could be released from an active core. The PCRV's current functions are to contain the remaining activity and to provide shielding for workers. These i functions are identical to the functions that the PCRV will perform during decommissioning. The ability of the PCRV to perform these functions would not be compromised ifits temperature was allowed to cool and reach equilibrium with the ambient temperature in the Reactor Building.

As discussed above, PSC requests that the requirements of LCO 4.2.15 be deleted, consistent with the DTS. Accordingly, the following attachments are provided:

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Attachment 1 Summary of Proposed Change Attachment 2 Proposed Change Attachment 3 Supporting Safety Analysis The attached safety analysis provides supporting justification for the early action requested. A No SigniGcant liarards Consideration Analysis in accordance with the standards in 10 CFR 50.92, was provided for the DTS submittal in the referenced letter. PSC's decommissioning authorization and the accompanying revision to the Technical SpeciGcations were noticed in the Federal Register (57 FR 8940) and no public comments were received, in the absence of oublic comments, PSC requests that this early consideration be approved as soon as reasonably practical, to improve the work environment inside the FSV Reactor Building.

P-92196 hiay 19,1992 Page 3 if you have any questions regarding this matter, please contact hir. hl. II. llolmes at (303) 620-1701.

Very truly yours, 0' y Y  :

A, Clegg Crawford Vice President Electric Production ACC/SWC/lmg c4 - llegional Administrator, llegion IV hir J. B. Baird Senior Resid:nt inspector T ort St. Vrain hir. Robert bl. Quillin, Director Radiation Control Division Colorado Department of Health I

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PEFORE THE UNITED STATES NUCLEAR REGULATO'tY COMMISSION t

} In the Matter of the Facility Operating License)

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UBLIC SERVICE COMPANY OF COLORADO )

Application for Amendment to a the Facility Operating License License No. DPR-34 0F THE PUBLIC SERVILE Cf'MPANY OF COLORADO FOR THE FORT ST. VRAIN NUCLEAR GENERATING STATI0r4 This app 14 aMon .r Amendment to the P -ility O mrt ti r License, License No. OPR-34, 18, submittec .cc NRC review and : proval. &

[kh Respectfully submitted, PUBLIC SERVICE COMPANY OF COLORADO By A. Clegg Crawford Vice President Elrrtric Production KELLY, STANSFIELD & 0'[0NNELL James K. Tarpey Mark A. Davidscn

'7th Street Plaza senver, Colorado 80202 Attorneys for Applicant

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UNITED ' + \TES OF AMERICA -  !

NUCLEAR REGs.ATORY COMMISSION In the Matter of the Facility Operating License) of )

Public Service Company of Colorado Fort St. ) Docket No. 50-267 Vrain Unit No. 1 )

AFFIDAVIT A. <<.,.Crawford, being first duly sworn, deposes and says: That he is Vice President, Electric Production, of Public Service Company of_ Colorado, the Licensee herein, that he has read the foregoing Application of Amendment to the Facility Operating License and - knows the contents -thereof, and that the statements and matters set forth therein are true _and correct to the best of his knowleNe, information and belief.

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A. Clegg Crawford m

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Vice President Electric Production ST?I 0F briI h4ddo )

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COU'.TY OF Bouldet, )_

i l- Subscribe and swcrn to before me,- a Notary Public on this lC) ti~ ' day _of M. . aug ,1991 l'

4 r Notary Public My commission expires 9flb ,

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