ML17265A475
| ML17265A475 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 12/07/1998 |
| From: | Mecredy R ROCHESTER GAS & ELECTRIC CORP. |
| To: | Vissing G NRC (Affiliation Not Assigned), NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| TAC-MA0389, TAC-MA389, NUDOCS 9812150184 | |
| Download: ML17265A475 (3) | |
Text
CATEGORY 1 REGULA RY INFORMATION DISTRIBUTI SYSTEM (RIDS)
ACCESSION NBR:9812150184 DOC.DATE: 98/12/07 NOTARIZED: NO FACIL:50-244 Robert Emmet Ginna Nuclear Plant, Unit 1, Rochester G
AUTH.NAME'.
AUTHOR AFFILIATION MECREDY,R.C.
Rochester Gas 8 Electric Corp.
RECIP.NAME RECIPIENT AFFILIATION VISS'ING,G.S.
DOCKET 05000244
SUBJECT:
Submits proposed changes to requirements for compensatory controls for plant LDS to support LBB application of RHR sys.Commitments made by util,listed.
DISTRIBUTION CODE: A001D COPIES RECEIVED:LTR ENCL SIZE:
TITLE: OR Submittal:
General Distribution 1
NOTES:License Exp'ate in accordance with 10CFR2,2.109(9/19/72) 05000244
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RECIPIENT ID CODE/NAME PD1-1 LA VISSING, G.
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NRR/DSSA/SPLB NRR/SPSB JUNG,I OGC/HDS3 COPIES LTTR ENCL RECIPIENT ID CODE/NAME PD1-1 PD NRR/DE/ECGB/A NRR/DRCH/HICB NRR/DSSA/SRXB NUDOCS-ABSTRACT COPIES LTTR ENCL EXTERNAL: NOAC NRC PDR D
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t NOTE TO ALL "RIDS" RECIPIENTS:
PLEASE HELP US TO REDUCE WASTETH TO HAVE YOUR NAME OR ORGANIZATION REMOVED FROM DISTRIBUTION LISTS OR REDUCE THE NUMBER OF COPIES RECEIVED BY YOU OR YOUR ORGANIZATION, CONTACT THE DOCUMENT CONTROL DESK (DCD)
ON EXTENSION 415-2083 TOTAL NUMBER OF COPIES REQUIRED:
LTTR 14 ENCL 1
AND ROCHESTER GAS ANDELECTRICCORPORATION 89EASTAVENUE, ROCHESTER, N.Y. 14649-0001 AREA CODE 716-546-2700 ROBERT C. MECREDY Vice President Nvdeor Operotions December 7, 1998 U.S. Nuclear Regulatory Commission Document Control desk Attn:
Guy S. Vissing Project Directorate I-1 Washington, D.C.
20555
Subject:
Proposed Changes to the Requirements for Compensatory Controls for Ginna's Leak Detection System to Support Leak-Before-Break (LBB)
Application of Portions of Ginna Residual Heat Removal (RHR) System (TAC¹ MA0389)
R.E. Ginna Nuclear Power Plant Docket No. 50-244
Dear Mr. Vissing:
On November 20, 1998 at 10:00 AM, RG&E and NRC personnel held a telephone conference to discuss the availability of RG&E's RCS leak detection monitor, Containment Air Particulate Monitor R-11.
NRC personnel were looking for a level of confidence in the monitor availability based on past experience.
RG&E provided information during the teleconference that was based on reviewing the inoperable equipment control records for monitor R-11.
The following is a listing of the percentage of time that R-11 was operable for a given year:
1995 97%
1996 98%
1997 92%
1998 (to date) 97%
During the teleconference it was suggested by the NRC that the required frequency for the performance of a RCS water inventory balance (SR 3.4.13.1) be increased when monitor R-11 is unavailable.
Currently the Ginna Improved Technical Specifications require a water inventory balance every 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> under normal conditions or every 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> under certain conditions when containment leak detection system components are inoperable.
RG&E has evaluated this suggestion and based on the importance of early RCS leakage detection to the leak-before-break methodology proposes the following commitments.
9812f50i84 98i20T PDR ADOCK 05000244 P
1)
A requirement will be added to the Ginna Technical Requirements Manual (TRM) to require either a RCS water inventory balance or analyses of containment atmosphere grab samples once within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and every 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter when monitor R-11 is unavailable while in MODES 1, 2, 3 and 4.
This requirement will be in place prior to 12/31/98.
2)
A License Amendment Request (LAR) will be submitted to the NRC to request revision of the Ginna Improved Technical Specifications to require either a RCS water inventory balance or analyses of containment atmosphere grab samples once within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and every 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter when monitor R-11 is unavailable while in MODES 1, 2, 3, and 4.
This LAR will be scheduled for submittal prior to 5/1/99.
Very truly yours, Robert C. Mecredy xc:
Mr. Guy S. Vissing (Mail Stop 14B2)
Project Directorate I-1 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C.
20555 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 U.S. NRC Ginna Senior Resident Inspector