ML20153B783

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Requests Extension to Respond to NRC Re Role of Operators in Mitigating High Energy Line Breaks Until Temp Profile Issue Adequately Completed
ML20153B783
Person / Time
Site: Fort Saint Vrain Xcel Energy icon.png
Issue date: 08/22/1988
From: Robert Williams
PUBLIC SERVICE CO. OF COLORADO
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
P-88310, TAC-61894, NUDOCS 8808310087
Download: ML20153B783 (1)


Text

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Public ervice~

OAugust22,{988 or, h P.o. Bon 840 D", co m m Fort St. Vrain Unit No. 1 R.O. WILUAMS, JR, P-88310 VICE PRES:OENT NOCLEAR OPERATIONS U. S. Nuclear Regulatory Comission ATTN: Document Control Desk Washington, D.C. 20555 Docket No. 50-267

SUBJECT:

Role of Operators Following a HELB

REFERENCE:

NRC Letter, Heitner to Williams, dated 6/24/88 (G-88235) l Gentlemen:

Per the referenced letter, additional information on the role of operators in mitigating high energy line breaks (HELB) at Fort St.

Vrain was requested of PSC. Recently, a verbal notification was made to the NRC on 8/16/88 (followup will be per LER 88-12) which stated that PSC has discovered an error in the computer code which calculated the building temperature profiles for certain HELBs.

These profiles are currently being re-analyzed and PSC feels that the "revised" temperature profiles should be used to respond to the requested information.

Therefore, PSC is requesting an extension to respond to the referenced letter until the temperature profile issue is adequately complete. PSC will plan on providing the ro uested additional information within 60 days following NRC's acceptance of the "revised" temperature profiles and resolution of the above mentioned profile issue.

If you have any questions concerning this Osue, please contact Mr. M. H. Holmes at (303) 480-6960.  !

Ver truly ours . ,

m/

R. O. Williams, Jr. l Vice President, Nuclear Operations

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R0W/KD:pa i cc: Regional Administrator, Region IV Mr. R. E. Farrell ATTN: Mr. T. F. Westerman, Chief Senior Resident Inspector Projects Section B Fort St. Vrain 1

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