ML20195H233

Informs That Util Shall Propose New Plant Tech Spec pressure-temp Limits Derived Using Rev 2 to Reg Guide 1.99, Per Generic Ltr 88-11 Before 891231

ML20195H233
Person / Time
Site:	Big Rock Point File:Consumers Energy icon.png
Issue date:	11/23/1988
From:	Smedley R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
RTR-REGGD-01.099, RTR-REGGD-1.099 GL-88-11, NUDOCS 8811300282
Download: ML20195H233 (2)

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Consumers Power powsmus AUUNEAN'S PROSRr55 oenerel officos: 1945 West Parnell Road, Jeckson, MI 49201 * (5171 788-055o November 23, 1988 Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 DOCKET 50-155 - LICENSE DPR BIG ROCK POINT PLANT -

IMPACT OF REGULATORY GUIDE 1.99 REVISION 2 ON OPERATIONS - RESPONSE TO GENERIC LETTER 88-11 NRC letter dated July 12, 1988 (Generic Letter 88-11) requested that Licensees submit, within 180 days of the effective date (May 27, 1988) of 'ievision 2 of Regulatory Guide 1.99, the results of Technical analysis using Pegulatory Guide 1.99 Revision 2 methodology to determine what modifications of pressure-temperatute limits contained in Technical Specifications are necessary in order to continue to satisfy the requirements of 10CFR50 Appendix G and to submit a schedule of actions they propose to take.

Big Rock Point has used Regulatory Guide 1.99 Revision 2 methodology to determine a

1. That if pressure-temperature limits derived using Reg Guide 1.99 Revision 2 methodology were to be immediately made part of the Technical Specifi-cations, Big Rock Point would remain in compliance for approximately one more year.

2. Pressure-temperature limits derived using Reg Guide 1.99 Revision 2 methodology will, in most cases, result in lower allowable pressures at a given temperature.

88113CO282 881123 +

PDR ADOCK 05000155 P PNV OC1188-0217-NLO2 4

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• • • ' Nuclear Regulatory Commission

, 2 Big Rock Point Plant Response to Cen Ltr 88-11 November 23, 1988 Therefore, in compliance with the schedular requirements of Generic Letter 88-11 and with consideration of the existing fluence effect on the Big Rock Point reactor vessel, we shall propose new Big Rock Point Technical Specifi-cation pressure-temperature limits, derived using Reg Guide 1.99 Revision 2 methodology, before December 31, 1989.

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Richard W Smedley Staff Licensing Engineer CC Administrator, Region III, NRC NRC Resident Inspector - Big Rock Point OC1188-0217-NLO2

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