ML20090M516
| ML20090M516 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 03/18/1992 |
| From: | Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| 92-160, GL-88-20, NUDOCS 9203240283 | |
| Download: ML20090M516 (2) | |
Text
. _ _ _ _ _ _ _ _
VitullNI A lia,t:Cliair Anis l'ow s:H (*o st i.A N g 11sesiM ow u, % setiiwir u u r4,i March 18, 1992 U.S Nuclear Regulatory Commission Sorial No.
92 100 Attn: Document Control Desk NLP/RMN R5 Washingtori, D.C. 20555 Docket Nos.
50 338 50 339 Licenso Nos. NPF 4 NPF 7 Gentlemon:
YEG1tRTLECTRIC AND POWER COMPANY NORTH AtAtfA POWER STAllON UNITS 1 AtlD_2 ljlQlVIDUAL_ PLANT EXAMlijATION flPE) SEliEDULE REVISlQll Our October 22, 1990 lottor (Sorial Numbst 90 013) provided a schedule for completing the Individual Plant Examinations (IPE) for North Anna and Surry Power Stations. In our March 12,1991 letter (Serial Number 91 134) the submittal dato for lho Surry IPE was extended from March 1991 to August 1991. The North Anna schedule was unchanged from its original submittal dato of June 1992. However, for reasons described below, we are revising the North Anna submittal dato from Juno 1990 to December 15,1992. A detailed schedule and justification for the extension is provided below:
Project Plan 4/89 (Completo) 60 Day Letter to NRC 11/89 (Completo)
Initiating Events and Success Critoria 4/01 (Complete)
Initial Sequenco Quantification 8/;,
Templeto)
Final Soquenco Quantification h02 Containment Analysis 4/92 Complete Indopondent Review M2 Draft Report 7/'12 Finel Report to NRC 12/.6/92 A; vario;s Interim milostonos are achieved, we will koop you apprised of our preliminary results.
The schedulo extension is necessary in part because the PRA skilled resources working on the North Anna IPE had to be temporanty redirected to first resolvo recont NRC concerns associated with the Surry IPE study. However, the principal reason for the scheduto extension is the nood to complete a comprehensivo independent review of the final results.
q{
pa9885! 8s88)he p'
0
f Generic Lottor 88 20 stated that the staff expected licensoos to submit the IPE results within throo years. Generic Lottor 88 20, Supplomont 1, dated August 29,1989, initiated the IPE process. Thus, the throo year period technically ends August 29, i
1992. The proposed extension until December 15,1992, excoods the NRC's original guidolinos by approximately 3.5 months.
The schedulo extension is consistent with the critoria established by the NRC staff in SECY 90-039 " Individual Plant Examinations Licensoo Schedul '." dated February 7,1990, which described extensions acceptable to the NRC. In the discussion section of the SECY paper, it Indicated that an extension beyond throo years was generally acceptable to the NRC staff if the licensoo was performing more than one IPE and if the other IPEs woro submitted on timo, or if a levol ll or lll analysis was being performed. Thoso critoria are mot in this Instanco: 1) we are performing more than one IPE,2) the Surry IPE was submitted on time (i.e., within throo years), and 3) both the Nor1h Anna and Surry IPEs are Lovelll assessments.
if you have any further questions, please contact us Very truly yours,
%~
kjh\\
W. L. Stewari '
Senior Vice President - Nuclear cc: U. S. Nuclear Rogulatory Commission 101 Mariotta Street, N.W.
Suite 2900 Atlanta, Georgia 30323 Mr. M. S. Lessor NRC Senior Resident inspector North Anna Power Station
_ _. ~. _ -
. -.