ML16342E101
| ML16342E101 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 06/02/1998 |
| From: | Steven Bloom NRC (Affiliation Not Assigned) |
| To: | Rueger G PACIFIC GAS & ELECTRIC CO. |
| References | |
| GL-87-09, GL-87-9, TAC-MA0395, TAC-MA0396, TAC-MA395, TAC-MA396, NUDOCS 9806030456 | |
| Download: ML16342E101 (6) | |
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 June 2, 1998
. ~z~xmg~~s Mr. Gregory M. Rueger, Senior Vice President and General Manager Pacific Gas and Electric Company Nuclear Power Generation N9B P. O. Box 770000 San Francisco, California 94177
SUBJECT:
REQUEST FOR ADDITIONALINFORMATION-RELIEF REQUEST P-RR5 FOR PUMPS INSERVICE TESTING PROGRAM - DIABLOCANYON POWER PLANT, UNITS 1 AND 2 (TAC NOS. MA0395 AND MA0396)
Dear Mr. Rueger:
By letter dated December 12, 1997, Pacific Gas and Electric Company (licensee) submitted relief request P-RR5 for Diablo Canyon Power Plant, Units 1 and 2, second ten-year interval program for inservice testing (IST) of pumps., The relief request concerns the pump test procedure requirements of OMa-1988, Part 6, Paragraph 5.2(b), for the auxiliary salt water pumps 1-1, 1-2, 2-1, and 2-2. The Code requires that either the resistance of the system be varied until the flow rate equals the reference value or the flow rate be varied until the pressure equals the reference value. Then either pressure or flow is recorded and compared with the Code pump acceptance criteria.
In lieu of this Code requirement, the licensee has proposed to verify each pump's hydraulic performance by the use of pump reference curves in accordance with the guidance provided in Section 5.2 of NUREG-1482, "Guidance for Inservice Testing at Nuclear Power Plants."
NUREG-1482 states that ifthe licensee implements the guidance on the use of pump curves, it must demonstrate the impracticality of achieving reference conditions for the IST. The licensee's basis provided in relief request P-RR5 concerns a conflict between inservice testing and the technical specification limiting condition for operation (LCO). The basis, however, does not address the applicable NRC positions described in Generic Letter (GL) 87-09, "Sections 3.0 and 4.0 of the Standard Technical Specifications (STS) on the Applicabilityof Limiting Conditions for Operations and Surveillance Requirements,"
and Section 3.1.2 of NUREG-1482.
It is not evident based on the information presented that achieving reference conditions in accordance with the Code is impractical.
In order for the NRC to complete its review of this relief request, we request the following additional information.
In GL 87-09, the NRC stated its position that the structure of the technical specification accounts for entry into an LCO to perform surveillance testing.
Ifthe time allowed for equipment to be out of service is not sufficient to perform a surveillance test, a technical speciTication change requesting additional out-of-service time to allow for surveillance would be required provided safety is not compromised by the increased out-of-service time. Discuss your reasons for not requesting a technical specification change in this case.
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Mr. Gregory M. Rueger June 2,
1998 2.
Address whether operators can manually manipulate one or more valves to restore a system to an operable status in the event the system function is required during inservice testing.,
3.
Discuss whether entry into multiple LCOs can be avoided in performing the Code required inservice testing in question.
Please submit your response within 90 days of the date of this letter. Ifyou have any questions please call me at (301) 415-1313.
Sincerely, Original Signed By Steven D. Bloom, Project Manager Project Directorate IV-2 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation Docket Nos. 50-275 and 50-323 cc: See next page U
Docket PUBLIC PDIV-2 Reading EAdensam (EGA1)
WBateman S Bloom EPeyton RWessman OGC ACRS PGwynn, RIV KPerkins, RIV WCFO DOCUMENT NAME:DCA0395.RAI To receive a copy ofthis document, Indicate in the box: "C" = Copy without endosures "E" = Copy with enctosures "N"= No copy OFFICE NAME DATE LA/PDIV-2 EPeyton 06/I /98 PM/PDIV-SBloo 06/%98 OFFICIAL RECORD COPY
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Mr. Gregory M. Rueger June 2, 1998
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NRC Resident Inspector Diablo Canyon Nuclear Power Plant cjo U.S. Nuclear Regulatory Commission P. O. Box 369 Avila Beach, California 93424 Dr. Richard Ferguson, Energy Chair Sierra Club California 1100 11th Street, Suite 311 Sacramento, California 95814 Ms. Nancy Culver Sari Luis Obispo Mothers for Peace P. O. Box 164 Pismo Beach, California 93448 Chairman San Luis Obispo County Board of Supervisors Room 370 County Government Center San Luis Obispo, California 93408 Mr. Truman Burns Mr. Robert Kinosian California Public Utilities Commission 505 Van Ness, Room 4102 San Francisco, California 94102 Mr. Steve Hsu Radiologic Health Branch State Department of Health Services Post Office Box 942732 Sacramento, California 94232 Diablo Canyon Independent Safety Committee ATTN: Robert R. Wellington, Esq.
Legal Counsel 857 Cass Street, Suite D Monterey, California 93940 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission Harris Tower 8 Pavillion 611 Ryan Plaza Drive, Suite 400 Arlington, Texas 76011-8064 Christopher J. Warner, Esq.
Pacific Gas 8 Electric Company Post Office Box 7442 San Francisco, California 94120 Mr.'obert P. Powers Vice President and Plant Manager Diablo Canyon Nuclear Power Plant P. O. Box 56 Avila Beach, California 93424 Telegram-Tribune ATTN: Managing Editor 1321 Johnson Avenue
'P.O. Box112 San Luis Obispo, California 93406
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