ML20101F311
| ML20101F311 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 06/18/1992 |
| From: | Horn G NEBRASKA PUBLIC POWER DISTRICT |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NSD920631, NUDOCS 9206240371 | |
| Download: ML20101F311 (2) | |
Text
.
c, n
,d GENERAL OFFICE ~
- 4,
. P O. DOX 499. COLUMBUS. NEBRASKA 68602 0499 Netiraska Public Power District
- K"e"Al'3%**
.., -. - n -..
_n=
m=.-n
.m.m _.
'NSD920631' June 18,.1992
- U.S.' Nuclear Regulatory Commission Attention: Document Control Desk
-Washington, DC.20555
~ Generic Letter 88 20, - Individual Plant Examination for Severe
- Subj ect:
Accident Vulnerabilities - 10CFR50,54(f), Request for Extension Cooper Nuclear Station Docket No.-50-298, DPR-46
References:
1)
Individual Plant Examination for Severe Accident
_ Vulnerabilities - 10CFR50,54(f), Generic Letter 88-20, dated November 23, 1988 2)
Letter from L, G. Kunc1 (NPPD) to U.S. NRC Document Control
_ Desk dated October 31, 1989; Subj ect:
Response to Generic Letter 88-20--
3).
-Letter from G.
R. Horn'(NPPD) to U.S. NRC Document Control Desk, dated June 27, 1991; Subj ect:
Request for Extension, Individual Plant Examination for CNS 4)
-Letter from G.
R, Horn-(NPPD) to U.S.
NRC Document Control Desk, dated January 31, 1992;-
Subject:
Progress Update Gentleme'n:
The. Nuclear Regulatory Commission (NRC) requested in Reference 1, pursuant to 10 CFR 50;54(f), _that-licensees perform an Individual Plant Examination (IPE) to identify any plant-specif1c vulnerabilities to-severe accidents and submit the
' results to the' NRC.
In response to Reference 1, and subsequent associated supplements, the Nebraska Public Power District (District) committed (References 2 and 3) to perform an IPE for the Cooper Nuclear Station (CNS) by August of 1992
- (NRC specified completion date). _In Reference 4, the' District provided an update of its progress towards<the completion of the-IPE for CNS.
The District also stated, in Reference 4, that there were many factors,.some yec to be determined, that J could impact the _ IPE schedule, and that the District would request-a schedule extension,-if necessary, Subsequent to this correspondence, the District has encountered factors which
~
have impacted the schedular completion of the IPE. Based on these factors,.the District will not be able to meet the August 1992 completion date and hereby requests an extension to March 1993 for the completion of the IPE.
W106240371 L 920618 h
PDR ADOCK 05000298 p
- _ =
= = _ _ ~ - ===
L N
m
T U. S,. Nuclear Regulatory Commission-June - 18, 1992 4'
Page 2 of 2
-The District has made considerable progress towards the completion of the IPE for
- CNS, Several of these milestones include the completion of the Level I Probabilistic Risk Assessment (FRA), preliminary quantification of Level II,.and comala* ion of the CNS ' containment performence analysis.
The District - is currently working on the accident progression and final quantification portions of the Level II PRA.
As stated in previous correspondence, the District is committed to maintaining a high level of-District engineering and operations involvement, an of fective and beneficial - 1nternal review process, documentation integrity, and eventually utilizing the Level I PRA as a living document. The District believes that the requested IPE completion date of March 1993 would provide for the accomplishment of the above stated goals.
If you have any questions or comments, please contact this office.
Sin ere?',
l o%v rn NucTear ' Power Group Manager CRH/dnm cc:
U.S. Nuclear Regulatory Commission Region IV Arlington, TX NRC Resident Inspector Cooper Nuclear Station
~
-,, --,..,...,. -..,, - -. - -..,. ~,.,..-
,n -