ML16341A521
| ML16341A521 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 03/14/1985 |
| From: | Knighton G Office of Nuclear Reactor Regulation |
| To: | Shiffer J PACIFIC GAS & ELECTRIC CO. |
| References | |
| NUDOCS 8504010225 | |
| Download: ML16341A521 (10) | |
Text
Docket No.:
50-323 MAR y4 1gsg Mr.'J.
D. Shiffer, Vice President Nuclear Power Generation c/o Nuclear Power Generation, Licensing Pacific Gas and Electric Company 77 Beale Street, Room 1451 San Francisco, California 94106
Dear Mr. Shiffer:
DISTRIBUTION
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JLee BBuckley HSchierling LChandler JPartlow
Subject:
Diablo Canyon, Unit 2 Technical Specifications As a result of our continuing review of the Diablo Canyon, Unit 2 Technical Specifications we find that the additional information identified in the enclosure is required in order to complete our review.
Sincerely,
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Enclosure:
As stated cc:
See next page George W. Knighton, Chief Licensing Branch No.
3 Division of'icensing DL:L ¹ DL:LB¹ DL'Buckley/yt 3//f85 HSchierling 3/g,/85 GWK i hton 3/i /85 8504010225 8503i4 PDR
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Mr. J.
D. Shiffer, Vice President Nuclear Power Generation c/o Nuclear Power Generation, Licensing Pacific Gas and Electric Company 77 Beale Street, Room 1451 San Francisco, California 94106 Philip A. Crane, Jr.,
Esq.
Pacific Gas 5 Electric Company Post Office Box 7442 San Francisco, Ca 1 ifornia 94120 Mr. Malcolm H. Furbush Vice President - General Counsel Pacific Gas 5 Electric Company Post Office Box 7442 San Francisco, California 94120 Janice E. Kerr, Esq.
California Public Utilities Commission 350 McAllister Street San Francisco, California 94102 Mr. Frederi ck Ei ss 1 er, Pres ident Scenic Shoreline Preservation Conference, Inc.
4623 More Mesa Drive Santa Barbara, California 93105 Ms. Elizabeth Apfelberg 1415 Cozadero San Luis Obispo, California 93401 Mr. Gordon A. Silver Ms. Sandra A. Silver 1760 Alisal Street San Luis Obispo, California 93401 Harry M. Willis, Esq.
Seymour 5 Willis 601 California Street, Suite 2100 San Francisco, California 94108 Mr. Richard Hubbard MHB Technical Associates Suite K
1725 Hamilton Avenue San Jose, California 95125 Mr. John Marrs, Managing Editor San Luis Obis o Count Telegram Tribune o nson venue P. 0.
Box 112 San Luis Obispo, California 93406 Diablo Canyon Resident Inspector/Diablo Canyon NPS c/o US Nuclear Regulatory Commission P. 0.
Box 369 Avila Beach, California 93424 Ms.
Raye Fleming 1920 Mattie Road Shell Beach, California 93440 Joel
- Reynolds, Esq.
John R. Phillips, Esq.
Center for Law in the Public Interest 10951 West Pico Boulevard Third Floor Los Angeles, California 90064 Mr. Dick Blankenburg Editor 8 Co-Publisher South County Publishing Company P. 0.
Box 460 Arroyo Grande, California 93420 Bruce Norton, Esq.
Norton, Burke, Berry 5 French, P.C.
202 E. Osborn Road P. 0.
Box 10569 Phoenix, Arizona 85064 Mr.
W.
C. Gangloff Westinghouse Electric Corporation P. 0.
Box 355 Pittsburgh, Pennsylvania 15230 David F. Fleischaker, Esq.
P. 0.
Box 1178 Oklahoma City, Oklahoma 73101
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~ ~a r
Arthur C. Gehr, Eso.
Snell 5 Wilmer 3100 Valley Center Phoenix, Arizona 85073 Mr. Lee M. Gustafson, Director Federal Agency Relations Pacific Gas
& Electric Company 1050 17th Street, N.W.
Suite-1180 Washington, DC 20036 Regional Administrator - Region V
US Nuclear Regulatory Commission 1450 Maria Lane Suite 210 Walnut Creek, California 94596 Mr. Thomas Devine Government Accountability Project Institute for Policy Studies 1901 Que Street, NW Washington, DC 20009 Michael J. Strumwasser, Esq.
Special Counsel to the Attorney General State of California 3580 Wilshire Boulevard, Suite 800 Los Angeles, California 90010 Mr. Tom Harris Sacremanto Bee 21st and 0 Streets Sacramento, California 95814 Mr. H. Daniel Nix California Energy Commission 1516 9th Street, MS 18 Sacramento, California 95814 Lewis Shollenberger, Esq.
US Nuclear Regulatory Commission Region V
1450 Maria Lane Suite 210 Walnut Creek, California 94596
ENCLOSURE DIABLO CANYON UNIT 2 INFORMATION REQUEST TECHNICAL SPECIFICATIONS 1.
Table 3.3-2 Reactor Tri S stem Instrumentation Res onse Times (Page 3/4 3.8)
The overpower delta T trip is relied upon to mitigate main steam line breaks in the FSAR.
For item 8 of table 3.2.-2, a N.A. is provided indicating that the trip is not relied upon.
Justify this apparent inconsistency.
2.
Section 4.4. 1.2.2 and 4.4. 1.3.2 0 erabilit of the Steam Generators (Pages 3/4 4-2 and 3/4 4-5)
These LCOs and surveillance requirements state that the required steam gpnerator(s) should be determined operable by verifying the secondary side water level to be 15% at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
Provide the basis for the 15% steam generator water level and specify whether the 15K level is measured on the narrow range or the wide range instru-mentation.
3.
Table 3.4-1, Reactor Coolant System Pressure Isolation Valves (Page 3/4 4-21)
Charging system discharge check valves are not included in the table of isolation valves for which leak surveillance will be performed.
Include these valves or provide an analysis of loss of charging pump flow with the check valves stuck in the open position.
4.
Section 3.4.4.3 Over ressure Protection S stem (Page 3/4 4-35)
In order to comply with Appendix G limits throughout the life of the plant, the PORV setpoint must be updated periodically to account for the irradiation of the pressure vessel.
To ensu~e that the above setpoint curve is updated, propose a requirement for Surveillance 4.4.9.1.2 on page 3/4 4-30.
5.
Provide proposed technical specifications to correct the lack of technical specifications preventing a control rod withdrawl event in f10DE 4 when the presently proposed technical specifications only require one RHR pump to provide coolant flow.
In your response you should propose a technical specification requirement to remove power from the rod devices
.in this mode, or propose a requirement f'r a number of operating Reactor Coolant Pumps based on an approved safety analysis.
4
~W V