ML20198D326

Forwards SE Accepting Licensee Response to Generic Ltr 82-33 Concerning Implementation of Reg Guide 1.97,rev 2

ML20198D326
Person / Time
Site:	Comanche Peak
Issue date:	05/06/1992
From:	Bergman T Office of Nuclear Reactor Regulation
To:	William Cahill TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
Shared Package
ML20198D329	List: ML20198D326 ML20198D333
References
RTR-REGGD-01.097, RTR-REGGD-1.097 GL-82-33, NUDOCS 9205200129
Download: ML20198D326 (3)

Text

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3,( UNITED STATES I  ?-  ? NUCLEAR REGULATORY COMMISSION le / WASHINoTON D.C. 20555

• • • • • May 6, 1992 Docket No. 50-445 Mr. William J. Cahill, Jr.

Group Vice President TV Electric 400 North Olive Street, L. B. 81 Dallas, Texas 75201

SUBJECT:

INSTRUMENTATION TO FOLLOW THE COURSE OF AN ACCIDENT (REGULATORY GUIDE 1.97)

Section 6.2 of Generic Letter 82-33 requested licensees to provide a report on their implementation of Regulatory Guide 1.97 (Revision 2), including methods for complying with the Commission'.; regulations and supporting technical justification for any proposed alternatives or deviations. A large number of exception requests were received from PWR licensees asking that the environ-mental qualification requirement for accumulator level and pressure monitoring instrumentation be relaxed from Category 2 to Category 3, which would allow commercial grade instruments to be used. Prior to 1987 these requests were denied by the staff. Since then, these exception requests have been considered as open items until a generic resolution could be found.

The staff has now reviewed the bases for these exceptions and has concluded that no operator action _is based on this post-accident instrumentation and that it does not perform a safety function. In addition, successful perfor-mance of core cooling systems can be inferred from other environmentally

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qualified instrumentation. Since this instrumentation does not perform any post-accident safety function, its qualificathn requirements can be reduced to Category 3. A copy of the Safety Evaluation is enclosed.

You have already installed Category 2 instrumentation to monitor accumulator pressure. You are no longer bound by this commitment, and may, at your discretion, replace this instrumentation with Category 3 instrumentation.

MC FILE CBUER COPY 9205200129 920506 [l [

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Mr.-William J. Cahill, Jr. May 6, 1992 Please notify me of the actions you plan to take and the schedule for implementation.

If you have any questions regarding this issue, please do not hesitate to contact me at (301) 504-1330.

Sincerely, Or1ginal Signed By Thomas A. Bergman, Project Manager -

Project Directorate IV-2 Division of Reactor Projects III/IV/V Office of Nuclear Reactor Regulation cc: See next page DISTRIBUTION:

Docket File- EPeyton

'NRC/PDR TBergman Local PDR OGC PDIV-2 Rdg File EJordan PDIV-2 Plt File ACRS(10)

BBoger LYandell, RGN-IV MVirgilio AHansen SNewberry OFFICE PDIV-2/LA F0lV-2/PM PDM 40 9 TB M nb SBlach NAME EfeffcI DATE 4/2C/92 h/ / /92 jL /92 / / / /

Mr. William J. Cahill, Jr. May 6, 1992 cc w/ enclosures:

Senior Resident inspector Jack R. Newman, Esq.

U.S. Nuclear Regulatory Commission Newman & Holtzinger P. O. Box 1029 1615 L Street, N.W.

Granbury, Texas 76048 Suite 1000 Washington, D. C. 20036 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission Chief, Texas Bureau of Radiation Control 611 Ryan Plaza Drive, Suite 1000 Texas Department of Health Arlington, Texas 76011 1100 West 49th Street Austin, Texas 78756 Mrs. Juanita Ellis, President Citizens Association for Sound Energy Honorable Dale McPherson 1426 South Polk County Judge Dallas, Texas 75224 P. O. Box 851 Glen Rose, Texas 76043 Owen L. Thero, President Quality Technology Comoany Lakeview Mobile Home Park, Lot 35 4793 East Loop 820 South Fort Worth, Texas 76119 Mr. Roger D. Walker Manager, Nuclea. Licensing Texas Utilities Electric Company 400 North Olive Street, L.B. 81 Dallas, Texas 75201 Texas Utilities Electric Company c/o Bethesda Licensing 3 Metro Center, Suite 610 Bethesda, Maryland 20814 William A. Burchette, Esq.

Counsel for Tex-La Electric Cooperative of Texas Jorden, Schulte, & Burchette 1025 Thomas Jefferson Street, N.W.

Washington, D.C. 20007 GDS Associates, Inc.

Suite 720 1850 Parkway Place Marietta, Georgia 30067-8237 l

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