ML17263A953

From kanterella
Jump to navigation Jump to search
Comments on Proposed Suppl 5 to GL 88-20 Re Reduction in Seismic Hazard to Majority of Us NPP
ML17263A953
Person / Time
Site: Ginna Constellation icon.png
Issue date: 02/28/1995
From: Mecredy R
ROCHESTER GAS & ELECTRIC CORP.
To:
NRC
References
FRN-60FR5734 60FR5734-00004, 60FR5734-4, GL-88-20, NUDOCS 9503090009
Download: ML17263A953 (4)


Text

RIDRIT'Y Z llWMMTa ACCESSION NBR:9503090009 DOC.DATE: 95/02/28 NOTARIZED: NO DOCKET FACIL:50-244 Robert Emmet Gin@a Nuclear Plant, Unit 1, Rochester G', 05000244 AUTH..NAME AUTHOR AFFILIATION MECREDY,R.C. Rochester Gas 6 Electric Corp.

REClP.NAME RECIPIENT AFFILIATION NRC No Detailed Affiliation Given

SUBJECT:

Comments on proposed suppl 5 to GL 88-20 re reduction in seismic hazard to majority of US NPP.

R DISTRIBUTION CODE: DS09D COPIES RECEIVED:LTR ENCL SIZE:

TITLE: SECY/DSB Dist: Public Comment on Proposed Rule (PR)-Misc Notice;Reg G NOTES:License Exp date in accordance with 10CFR2,2.109(9/19/72). 05000244 C)

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL INTERNAL~FILE CENTE~ 1 NMSS/IMOB T8F5 OGC/DR 15-B-18 RES DIR RES/DSIR RES/FMPAS EXTERNAL: NRC PDR 02 D

u N

YOTE TO ALL"RIDS" RECIPIENTS:.

PLEASE HELP US TO REDUCE O'ASTE! CONTACT THE DOCUMENT COYTROL DESK. ROOiiI Pl -37 (EXT. 504-2033 ) TO ELIMIYATE YOUR iNAidE FRO!i!

DISTRIBL.'TIOYLISTS FOR DOCUKIEYTS YOU DON "I NEED!

TOTAL NUMBER OF COPIES REQUIRED: LTTR 7 ENCL

4ND ir s 'tr ROCHESTER GAS AND ELECTRIC CORRORATION ~ 89 FAST AVENUE, ROCHESTER, N. Y 14649-0001 ARFA CODE716 546-2700 l995 HhR -7 AII to: 3S ROBERT C. MECREDY Vice President hlvcleor Operations RULES REV[EQ c; DiR. BR.

USHRC February 28, 1995 Chief, Rules Review and Directive Branch ID K>>'I U.S. Nuclear Regulatory Commission Washington, D.C. 20555 loctF g,5>3$

to 88-20 0 I /Bo(cia

Subject:

Comments Proposed Supplement 5 GL R.E. Ginna Nuclear Power Plant Docket No. 50-244 0oh~ Ken This letter provides comments in response to the Federal Register Notice (Vol. 60 Fed. Reg. 5734 January 30, 1995 Notice of Opportunity of Public Comment) regarding this subject. RG&E is pleased that the NRC has acknowledged the significant reduction in seismic hazard to the majority of U.S. 'nuclear power plants, including Ginna Station, due to the revised LLNL mean seismic hazard curves. This information was published in Information Notice 94-32, ERI/NRC 94-502, ERI/NRC 94-504, and comments to this effect were made at the public workshop held on October 21, 1994.

We are disappointed, however, by the apparent lack of meaningful response by the NRC to this significant new information. Simply removing the review of soil-structure interaction and reactor vessel internals from the scope of IPEEE, while an important improvement, does not do justice to the comprehensive insights developed in this area by industry and seismic experts.

RG&E agrees with the comments, made by NEI at the October 21, 1994 workshop that, in order to resolve the seismic issue for the majority of plants, emphasis should be placed on a comprehensive seismic walkdown and review by a team of seismic and systems experts. Insight gained from this experience will be factored into utility decision-making inBecause resultant plant changes.

defining the extent, the generic letter does not if any, of establish any legally binding requirements to go beyond the regulations, and because we feel that no important additional insights will be gained from a seismic review above SSE asserts that this walkdown/review should be performed at the levels,'G&E design basis SSE 'for the site (0.2 g for Ginna), thus also resulting in the resolution of USI A-46 in an efficient manner.

9503090009 950228 PDR ADGCK 05000244 H PDR

'As suggested in the Federal Register Notice, RG&E will be informing the NRC within 60 days of the date of the published generic letter, of our intent to modify our IPEEE submittal schedule. The detailed methodology we propose to use to implement our IPEEE commitments will be described at that time.

Very uly yours, Robert C. Mec edy GJW/371 xc'r. Allen R. Johnson Attn: Document Control Desk Project Directorate I-3 Washington, D.C. 20555 U.S. Nuclear Regulatory Commission Region I 475 Allendale Road King of Prussia, PA 19406 Ginna Senior Resident Inspector

e * ~

~ ~

I.

"k