ML20206K091
| ML20206K091 | |
| Person / Time | |
|---|---|
| Site: | Fort Saint Vrain  |
| Issue date: | 11/22/1988 |
| From: | Warembourg D PUBLIC SERVICE CO. OF COLORADO |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| Shared Package | |
| ML20206K094 | List: |
| References | |
| P-88414, TAC-69264, NUDOCS 8811290266 | |
| Download: ML20206K091 (2) | |
Text
_
h Public Service' O%
2420 W. 26th Avenue, Suito 100D, Denver, Colorado 80211 November 22, 1988 Fort St. Vrain Unit No. 1 P-83414 U. S. Nuclear Regulatory Commission ATTN:
Document Control Desk Washington. 0.C.
20555 Docket No. 50-267
SUBJECT:
Request for Additional Information - SLRDIS and LER 87-020
REFERENCE:
NRC Letter. Heitner to Williams, dated September 20, 1988 (G-88398)
Gentlemen:
1 In the abnve referenced letter, the NRC Lti. 'f documented their concern about the potential interactions of the Plant Protection System (PPS),
the Steam Line Rupture Detection / Isolation System (SLRDIS) and normal control systems.
These concerns were particular i
to several design criterions comitted to in the Final Safety Analysis Report (FSAR).
During an annual 10CFR50.59 inspection (week of October 10,1988),
Mr. Ken Heitner of the NRC Staff raised similar concerns following his review of a SLRDIS related modification (Change Notice 2190).
Public Service Company of Colorado (PSC) is submitting, attached to this letter, an engineering evaluation (EE) prepared to provide an overview and corrpilation of the results of numerous design analyses, accident analyses and engineering evaluations which supported the Fort St.
Vrein Environmental Qualification Prog ram.
This EE specifically addresses the concerns identified above.
05 h0 88112PO266 8411 %
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ADOCK 05003367 FDC
7 P-88414 o
Page 2 November ?2,1988 Should you have any cuestions on this matter, please contact Mr. M.H. Holmes at (303) 480-6960.
Very truly yours, on 4 D. W. Warembourk.anager v
Nuclear Engineering Division DW/GSB:pa Attachment cc:
Regional Administrator, Region IV Attn: Mr. T.F. Westerman, Chief Projects Section B Mr. Robert Farrell Senior Resident Inspector fort St. Vrain i