ML18153B286
| ML18153B286 | |
| Person / Time | |
|---|---|
| Site: | Surry, North Anna  |
| Issue date: | 07/27/1993 |
| From: | Berkow H Office of Nuclear Reactor Regulation |
| To: | Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| References | |
| IEB-93-002, IEB-93-2, TAC-M86223, TAC-M86588, TAC-M86589, TAC-M86622, NUDOCS 9308180084 | |
| Download: ML18153B286 (3) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555--0001 Docket Nos. 50-280, 50-281, 50-338, 50-339 Mr. W. L. Stewart Sr. Vice President - Nuclear Virginia Electric & Power Co.
Innsbrook Technical Center 5000 Dominion Blvd.
Glen Allen, Virginia 23060
Dear Mr. Stewart:
July 27, 1993
SUBJECT:
RESPONSE TO BULLETIN 93 "DEBRIS PLUGGING OF EMERGENCY CORE COOLING SUCTION STRAINERS" - SURRY POWER STATION (SPS), UNITS 1 AND 2, AND NORTH ANNA POWER STATION, UNITS 1 AND 2 (NAPS) (TAC NOS.
M86622, M86223, M86588, AND M86589)
By letter dated June 10, 1993, you responded to NRC Bulletin 93-02 for the Surry and North Anna Power Stations. This Bulletin was issued on May 11, 1993, to all nuclear power reactor licensees. It requested licensees to identify fibrous material in the primary containment, take any necessary compensatory measures, and remove any such material.
Your response confirmed that there is no temporary fibrous material in the primary containments at Surry and North Anna at this time and that, in accordance with existing programmatic controls, temporary fibrous material is not left in the containments during plant operation.
Your response further states that you have identified permanent fibrous material inside the containments at the Surry and North Anna Stations and the consequences of the presence of this material has been evaluated.
The permanent fibrous material inside the primary containments is used as piping insulation, in roughing and HEPA pre-filters in the containment cleanup system, and the damming material for fire stop installations inside electrical cable trays.
Based on the current configuration, you concluded that the fibrous material in the Surry and North Anna containments will not reduce the functional capability of the Emergency Core Cooling System (ECCS) by blocking or clogging the sump screens or suction strainers and therefore, compensatory measures are not required.
You further stated that any future use of fibrous material in the Surry and North Anna containments will be evaluated, in accordance with the existing programs, for potential reduction in the functional capability of the ECCS.
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W. The staff has reviewed your response to Bulletin 93-02, and considers it acceptable.
However, you are requested to retain any records regarding your actions in response to this Bulletin, as subsequent inspection activities may be conducted to verify these actions.
cc:
See next page Distribution Docket File NRC/Local PDRs PDII-2 Reading S. Varga G. Lainas H. Berkow E. Tana B. Buckley OGC ACRS (10)
M. Sinkule, RII J. Hickman, 13-0-1 L. Engle Sincerely, (Original Signed By)
Herbert N. Berkow, Project Director Project Directorate II-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation OFFICIAL RECORD COPY - DOCUMENT NAME: C:\\AUTOS\\WPDOCS\\SURRY\\SRNA.BLT
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Mr. W. L. Stewart Virginia Electric & Power Company cc:
Mr. William C. Porter, Jr.
County Administrator Louisa County P.O. Box 160 Louisa, Virginia 23093 Michael W. Maupin, Esq.
Hunton and Williams Riverfront Plaza, East Tower 951 E. Byrd Street Richmond, Virginia 23219 Dr. W. T. Lough Virginia State Corporation Commission Division of Energy Regulation P.O. Box 1197 Richmond, Virginia 23209 Old Dominion Electric Cooperative 4201 Dominion Blvd.
Glen Allen, Virginia 23060 Mr. M. L. Bowling, Manager Nuclear Licensing & Programs Virginia Electric and Power Company Innsbrook Technical Center 5000 Dominion Blvd.
Glen Allen, Virginia 23060 Office of the Attorney General Supreme Court Building 101 North 8th Street Richmond, Virginia 23219 Senior Resident Inspector North Anna Power Station U.S. Nuclear Regulatory Commission Route 2, Box 78 Mineral, Virginia 231172 North Anna Power Station Units 1 and 2 Robert B. Strobe, M.D., M.P.H.
State Health Commissioner Office of the Commissioner Virginia Department of Health P.O. Box 2448 Richmond, Virginia 23218 Regional Administrator, RII U.S. Nuclear Regulatory Commission 101 Marietta Street, N.W., Suite 2900 Atlanta, Georgia 30323 Mr. G. E. Kane, Manager North Anna Power Station P.O. Box 402 Mineral, Virginia 23117