ML16341E934
| ML16341E934 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 12/22/1988 |
| From: | Rood H Office of Nuclear Reactor Regulation |
| To: | Shiffer J PACIFIC GAS & ELECTRIC CO. |
| Shared Package | |
| ML16341E935 | List: |
| References | |
| TAC-59816, TAC-68039, NUDOCS 8901050004 | |
| Download: ML16341E934 (10) | |
Text
December 22, 1988 Docket Nos.:
50-275 and 50-323 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 NRC 8
LPDRs ~
HRood MVirgi 1 io JLee OGC (for information only)
PDV Reading File EJordan BGr imes ACRS (10)
KDempsey
SUBJECT:
SAFETY EVALUATION OF THE DIABLO CANYON UNITS 1
AND 2 TEN-YEAR INSERVICE TESTING PROGRAM FOR PUMPS AND VALVES (TAC NOS.
59816 AND 68039)
The purpose of this letter is to forward the NRC staff's Safety Evaluation Report (SER) on the Diablo Canyon 1 and 2 inservice testing
( IST) program for pumps and valves.
The IST program addressed in the SER covers the first ten-year interval for each unit.
These are May 7, 1985 to May 7, 1995 for Diablo Canyon Unit 1 and March 13, 1986 to March 13, 1996 for Diablo Canyon Unit 2.
The SER covers the Unit 1 IST program through Revision 6, submitted on November 2, 1987, and the Unit 2 IST program through Revision 3, submitted on November 23, 1987.
Paragraph 50.55a(g) of Title 10 of the Code of Federal'egulations requires that certain Class 1, 2, and 3 pumps and valves in water-cooled nuclear reactor facilities meet the inservice testing requirements, stated in'Section XI of the ASME Boiler and Pressure Vessel Code.
Specifically, these requirements are given in Section XI, Subsection IWP, ~"Inservice Testing,.of Pumps in Nuclear Power Plants,"
and Subsection IWV,."Inservice Testing 'of",
Valves in Nuclear Power Plants."
Each facility is required to establish a
program for the inservice testing of pumps and,valves which is updated every ten years to meet the requirements in the latest approved'edition, and, addenda to Section XI of the ASME Code.
The program is submitted to the NRC staff for review and approval.
The staff review assures that (l)>the program's, based on the applicable Code edition and addenda, (2) the program covers testing of all appropriate pumps and valves, and (3) the requests'for relief meet the requirements of 10 CFR 50.55a(g).
The NRC staff, with technical assistance from EGSG Idaho Inc.
(EG8G),
has reviewed and evaluated the IST program and requests for relief submitted for Diablo Canyon Units 1 and 2.
The staff adopts the evaluations and conclusions contained in the Technical Evaluation Report (TER) prepared by EG&G.
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December 22, 1988 The attached SER (Enclosure
- 1) incorporates the TER and its findings.
As is discussed in detail in the SER and the TER the NRC staff hereby grants relief from certain testing requirements where (1j proposed alternative testing provides an acceptable level of quality and safety, (2) compliance would result in hardships or unusual difficulties without a compensating increase in the level of quality and safety, or (3) compliance is impractical at Diablo Canyon.
The staff has determined that the Diablo Canyon IST program is acceptable for implementation provided the omissions and inconsistencies identified in the SER and in Appendix C of the TER are addressed within three months of the date of issuance of this letter.
)lith this approval, yo'u are required to comply with the IST program defined in the above referenced letters in accordance with the relief granted in the enclosed SER.
Program'hanges that involve additional relief requests or changes to relief requests should be submitted for staff review but may not be implemented prior to review and approval by the NRC.
Program changes that involve additions or deletions of components from the IST program should be described to the NRC prior to their implementation.
However, prior NRC review and approval for such changes is not required, provided that the changes are not in conflict with the requirements of the ASNE Code.
Your ability,to perform functional testing of valves 8948A, 8948B, 8948C, 8948D and 8818A, 8818B, 8818C,'818D is doubtful because of design constraints. -.As described by EG8G in a notegram (Enclosure 2), an NRC inspection wi 11-verify that;the. valves. are being tested in an acceptable manner; '.,
This submittal completes the technical review to be performed by the NRC staff under TAC Numbers 59816 and 68039.," Please contact us if you have any questions regarding this evaluation.
S incere ly, original signed by Harry Rood, Senior Project Manager Project Directorate V
Division of Reactor Projects - III, IV, V and Special Projects
Enclosures:
- 1. Safety Evaluation w/att.
- 2. Notegram cc w/enclosures:
See next page DRSP/PD5 DRS D5 DR 5
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D. Shiffer December 22, 1988 The attached SER (Enclosure I) incorporates the TER and its findings.
As is discussed in detail in the SER and the TER the NRC staff hereby grants relief from certain testing requirements where (1
proposed alternative testing provides an acceptable level of quality and safety, (2) compliance would result in hardships or unusual difficulties without a compensating increase in the level of quality and safety, or (3) compliance is impractical at Diablo Canyon.
The staff has determined that the Diablo Canyon IST program is acceptable for implementation provided the omissions'and inconsistencies identified in the SER and in Appendix C of the TER are addressed within three months of the date of issuance of this letter.
With this approval, you are required to comply with the IST program defined in the above referenced letters in accordance with the relief granted in the enclosed SER.
Program changes that involve additional relief requests or changes to relief requests should be submitted for staff review but may not be implemented prior to review and approval by the NRC.
Program changes that involve additions or deletions of components from the IST program should be described to the NRC prior to their implementation.
- However, pr ior NRC review and approval for such changes is not required, provided that the changes are not in conflict with the requirements of the ASME Code.
Your ability to perform functional testing of valves 8948A, 8948B, 8948C, 8948D and 8818A, 8818B,
- 8818C, 8818D is doubtful because of design constraints.
As described by EGImG in a notegram (Enclosure 2),
an NRC inspection will verify that the valves are being tested in an acceptable manner.
This submittal completes the technical review to be performed by the NRC staff under TAC Numbers 59816 and 68039.
Please contact us if you have any questions regarding this evaluation.
Sincerely, Harry Rood, Senior Project Manager Project Directorate V
Division of Reactor Projects - III, IV, V and Special Projects
Enclosures:
- 1. Safety Evaluation w/att.
- 2. Notegram cc w/ehclosures:
See next page
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~ 1 Mr. J.
D. Shiffer Pacific Gas and Electric Company Diablo Canyon CC Richard F. Locke, Esq.
Pacific Gas 8 Electric Company Post Office Box 7442 San Fr ancisco, California 94120 Janice E. Kerr, Esq.
California Public Utilities Commission 350 McAllister Street San Francisco, California 94102 Ms. Sandra A. Silver 660 Granite Creek Road Santa Cruz, California 95065 Mr. W. C. Gangloff Westinghouse Electric Corporation P. 0.
Box 355 Pittsburgh, Pennsylvania 15230 Managing Editor San Luis Obispo County Telegram Tribune 1321 Johnson Avenue P. 0.
Box 112 San Luis Obispo, California 93406 Mr. Leland M. Gustafson, Manager Federal Relations Pacific Gas and Electric Company 1726 M Street, N.
W.
Washington, DC 20036-4502 Dian M. Grueneich Marcia Preston Law Office of Dian M. Grueneich 380 Hayes Street, Suite 4
San Francisco, California 94102 NRC Resident Inspector Diablo Canyon Nuclear Power Plant c/o U.S. Nuclear Regulatory Commission P. 0.
Box 369 Avila Beach, California 93424 Mr. Dick Blakenburg Editor 5 Co-Publisher South County Publishing Company P. 0.
Box 460 Arroyo Grande, California 93420 Bruce Norton, Esq.
c/o Richard F. Locke, Esq.
Pacific Gas and Electric Company Post Office Box 7442 San Francisco, California 94120 Dr. R. B. Ferguson Sierra Club - Santa Lucia Chapter Rocky Canyon Star Route
.Creston, California 93432 Chairman San Luis Obispo County Board of Supervisors Room 270 County Government Center San Luis Obispo, California 93408 Director Energy Facilities Siting Division Energy Resources Conservation and Development Commission 1516 9th Street Sacramento, California 95814 Ms. Jacquelyn Wheeler 3033 Barranca Court San Luis Obispo, California 93401
~I
Pacific Gas
& Electric Company Diablo Canyon CC:
Ms. Laurie NcDermott, Coordinator Consumers Organized for Defense of Environmental Safety 731 Pacific Street, Suite 42 San Luis Obispo, California 93401 Mr. Jack McGur k, Acting Chief Radiological Health Branch
'State Department of Health Services 714 P Street, Office Building 88 Sacramento, California 95814 Regional Administrator, Region V
U.S. Nuclear Regulatory Commission 1450 Maria Lane Suite 210 Walnut Creek, California 94596 Ms.
Nancy Culver 192 Luneta Street San Luis Obispo, California 93401 President California Public Utilities Commission California State Building 350 McAllister Street San Francisco, California 94102 Michael M. Strumwasser, Esq.
Special Assistant Attorney General State of California Department of Justice 3580 Wilshire Boulevard, Room 800 Los Angeles, California 90010
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