ML17298A301
| ML17298A301 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 04/13/1983 |
| From: | Knighton G Office of Nuclear Reactor Regulation |
| To: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| References | |
| NUDOCS 8304260036 | |
| Download: ML17298A301 (4) | |
Text
APR 13 $983 Docket Nos.:
50-528, 50-529 and 50-530 0r,.
E.
E. Van Brunt, Jr.
Vice President - Nuclear Projects Arizona Public Service Company Post Office Box 21666 Phoenix, Arizona 85036
Dear Hr. Van Brunt:
DISTRIBUTION lDocument Control 50-528/529/530 NRC PDR L PDR NSIC PRC System LB//3 Reading tlLicitra JLee TMNovak A't'torney, OELD
- Jordan, IE
Subject:
Leak Rate Testing -of Pressure Isolation Valves - Palo Verde, Units 1, 2 and 3
By letter, dated February 24, 1983, you submitted revised responses to two NRC questions.
concerning inter-system LOCA surveillance requirements, to delete your previously acceptable comitment to conduct periodic testing of cer tain pressure isolation check valves and a proposal to delete a leak det'ection criterion for those valves in the Technical Specifications.
The revised responses were based on the probablilties of valve failures.
However the failure probabilities used in your revised responses, which are based on the WASH-1400 study, do not address the pressure boundary failures due to valve degradation.
In addition, although the.Event V
intersystIem LOCA was partially concerned with bypass of the containment, the concern stated by the staff in guestion 3A.15 includes uncontrolled reactor coolant leakage both inside and outside containment.
Therefore, your revised responses are not acceptable.
As a result, we request that you delete your revised responses.
or provide the basis for, or alternate measures to be taken in lieu of, not performing a leak rate-test of those pressIure isolation valves for the above stated conditions.
Please advise us as to when you plan to respond to this letter. If you have any questions regarding the letter, you should contact Nanny Licitra, the Licensing Project Manager, Sincerely, 8304260036 8304i3 PDR *DOCK OS000528 PDR cc:
See next pag Orioinoi signed t;y:
George N. Knitlhton George W. Yeighton. Chief Licensing Branch ffo. 3 Divisinnoof Licensing OFFICEI SURNAME$
DATE0 DL:LBII'.3....DL:
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4/yg/83 NRC FORM 318 (10-80) NRCM 0240 OFFICIAL R ECOR D COPY
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Palo Verde Mr. E.
E.
Van Brunt, Jr.
Vice President - Nuclear Projects Arizona Public Service Company P. 0.
Box 21666 Phoenix, Arizona 85036 CC Arthur C. Gehr, Esq.
Snell E Wilmer 3100 Valley Center Phoenix, Arizona 85073
, ~
Charles S. Pierson Assistant Attorney General 200 State Capitol.-.-
1700 West Washington Phoenix, Arizona 85007 Charles R. Kocher. Esq., Assistant Counsel James A. Boeletto, Esq.
Southern California Edison Company P.
0.
Box 800
- Rosemead, California 91770 V's. Marqaret Walker Deputy Director of Energy Programs Economic Planning and Development Office 1700 West Washington Phoenix, Arizona 85007 Regional Adminstrator-Region V
~ -U. S. Nuclear Regulatory Commission-1450 Maria Lane Suite 210 Walnut Creek, California 94596 Kenneth Berlin, Esq.
Winston 5 Strawn Suite 500 2550 M Street, N.
W.
Washington, D.
C.
20037 Lynne Bernabei Government Accountability Project of the Institute for Policy.
Studies 1901 gue Street, N.
W.
Washington, D.
C.
20009 Mr. Rand L. Greenfield Assistant Attorney General Bataan Memorial Building Santa Fe, New Mexico 87503 Resident Inspector Palo Verde/NPS U.
S. 'Nuclear Regulatory Commission P.
0.
Box 21324 Phoenix, Arizona 85001 Ms. Patricia Lee Hourihan 6413 'S. 26th Street Phoenix: Arizona 85040
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