ML17261B148

Lists Understanding of Issues Util Planning to Address Re Containment Integrity,Per 900718 Telcon.Any Concerns or Action Items Different from Listed Submittal Should Be Provided to Util Prior to NRC 900905 & 06 Visit to Plant

ML17261B148
Person / Time
Site:	Ginna
Issue date:	08/28/1990
From:	Mecredy R ROCHESTER GAS & ELECTRIC CORP.
To:	Andrea Johnson NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), Office of Nuclear Reactor Regulation
References
NUDOCS 9009100295
Download: ML17261B148 (4)

Text

ACCELERATED DIS RIBUTION DEMONSTRATION SYSTEM r i

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4 REGULATORY INFORMATXON DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:9009100295 DOC.DATE: 90/08/28 NOTARIZED: NO DOCKET FACIL:50-244 Robert Emmet Ginna Nuclear Plant, Unit 1, Rochester G 05000244 AUTH. NAME AUTHOR AFFILIATION MECREDY,R.C. Rochester Gas & Electric Corp.

RECXP.NAME RECIPIENT AFFXLIATION JOHNSON,A.R. Project Directorate I-3 R

SUBJECT:

Lists understanding of issues util planning to address re I containment integrity,per 900718 telcon.

DISTRIBUTXON CODE: A001D COPIES RECEIVED:LTR ENCL SIZE:

TITLE: OR Submittal: General Distribution $

NOTES:License Exp date in accordance with 10CFR2,2.109(9/19/72). 05000244 RECIPIENT COPIES RECIPXENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD1-3 LA PD1-3 PD D JOHNSON,A D

INTERNAL: NRR/DET/ECMB 9H NRR/DOEA/OTS B1 1 NRR/DST 8E2 NRR/DST/SELB 8D NRR/DST/SICB 7E NRR/DST/SRXB 8E NUDOCS-ABSTRACT OC/LFMB OGC/HDS2 .~~IaQEeenmee~ 0i ~

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PLEASE HELP US TO REDUCE iVASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED: LTTR 17 ENCL

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/////Z //ZSF/ STATE ROCHESTER GAS AND ELECTRIC CORPORATION 4 89 EAST AVENUE, ROCHESTER N. Y. 14649-0001 ROBERT C MECREDY TELEPHONE Vice Ptesldent AREA CODE 71B 546 2700 Clnna Nuclear Ptoduction August 28, 1990 U.S. Nuclear Regulatory Commission Attention: Allen R. Johnson Project Directorate I-3 Document Control Desk Washington, D.C. 20555

Subject:

Containment Integrity R. E. Ginna Nuclear Power Plant Docket No. 50-244

Dear Mr. Johnson:

In letters dated July 11, 1990 and August 15, 1990, RG&E provided to the NRC our proposed course of action for resolution of containment issues. Based on this correspondence, and a July 18, 1990 conference call between the NRC and RG&E, the following is a tabulation of our understanding of the issues that RG&E is planning to address relative to the integrity of the Ginna Station Containment.

1. Take expeditious steps to remove the standing water from the containment annular access area, and maintain it dry.

2. Relative to the structural detail between the cylin-drical wall of the containment and the basemat, verify when and if sliding will occur under design load con-ditions. Also evaluate the effects of no sliding on wall stresses.

3. Determine the effects of the bellows on the function of the tendons. Consider the bellows performing or not performing their design intent.

4. Determine the capability of the tension rods to perform their functions, and assess the margins associated with this system.

9009100295 900S28 PDR P

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5. Perform an assessment of the following boundary condi-tions on the overall joint design.

a. Sliding condition with hinge connection.

b. Non-sliding condition with hinge connection.

c. Partially fixed base for a and b above.

6. Investigate all above issues, considering appropriate seismic and LOCA load combinations.

7. Provide a copy of GAI Report I2347 "Containment Building Tendon Investigation", and the results of the chemical analysis of the groundwater at Ginna to the NRC.

We understand that the NRC will make a site visit to Ginna Station on September 5 and 6, 1990. Any concerns or action items different from those listed above should be provided to RGGE prior to that time.

Very truly yours, Robert C. Mecr y LAS/155 xc: Mr. Allen R. Johnson (Mail Stop 14D1)

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