ML17251A374

Advises That All safety-related Structures Affected by New Design Basis Groundwater Level Change Reanalyzed & Acceptable

ML17251A374
Person / Time
Site:	Ginna
Issue date:	11/23/1988
From:	Mecredy R ROCHESTER GAS & ELECTRIC CORP.
To:	Stahle C NRC, NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
NUDOCS 8812070183
Download: ML17251A374 (3)

Text

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REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:8812070183 DOC.DATE: 88/11/23

'OTARIZED: NO FACIL:50-244 Robert Emmet Ginna Nuclear Plant, Unit 1, Rochester G

AUTH.NAME AUTHOR AFFILIATION MECREDY,R.C.

Rochester Gas

& Electric Corp.

RECIP.NAME RECIPIENT AFFILIATION STAHLE,C.

NRC No Detailed AffiliationGiven

SUBJECT:

Advises that all safety-related structures affected by new design basis groundwater level change acceptable.

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General Distribution NOTES:License Exp date in accordance with 10CFR2,2.109(9/19/72).

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~>'~ ZiII"'III /ZZr~eu ROCHESTER GAS AND ELECTRIC CORPORATION o 89 EAST AVENUE, ROCHESTER, N.K 14649-0001 November 23, 1988 TELEPHONC

• ace coom via 546-2700 U.S. Nuclear Regulatory Commission Document Control Desk Attn:

Mr. Carl Stahle PWR Project Directorate No.

1.

Washington, D.C.

20555

Subject:

Design Basis Groundwater Level R.E. Ginna Nuclear Power Plant Docket No. 50-244

Dear Mr. Stahle:

As a result of questions asked during the review of SEP Topic III-3.A, "Effects of High Water Level on Structures",

RG&E initiated. a groundwater monitoring program to establish a

design basis groundwater level.

This monitoring was completed in

1987, and a

new (conservative) design basis groundwater level of 270 feet msl was established.

All affected safety-related structures affected by this change were reanalyzed, and found to be acceptable.

This information has been incorporated into the Ginna

UFSAR, and should complete our commitments for this SEP topic.

Very truly yours, Robert C. Mecre General Manager Nuclear Production GJWK002 xc:

U.S. Nuclear Regulatory Commission Region I 475 Allendale Road King of Prussia, PA 19406 Ginna Senior Resident Inspector

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