ML16342A539
| ML16342A539 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 10/15/1998 |
| From: | Bateman W NRC (Affiliation Not Assigned) |
| To: | Rueger G PACIFIC GAS & ELECTRIC CO. |
| Shared Package | |
| ML16342A540 | List: |
| References | |
| TAC-M95068, TAC-M95069, NUDOCS 9810210172 | |
| Download: ML16342A539 (6) | |
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 2055&0001 October 15, 1998 ftu-2r r/Ndd Mr. Gregory M. Rueger, Senior Vice President and General Manager Pacific Gas and Electric Company Nuclear Power Generation P. O. Box 3 Avila Beach, California 93424
SUBJECT:
EVALUATIONOF SECOND 10-YEAR INTERVALINSERVICE INSPECTION PROGRAM PLAN AND ASSOCIATED REQUESTS FOR RELIEF FOR DIABLO CANYON POWER PLANT, UNITS 1 AND 2 (TAC NOS. M95068 AND M95069)
Dear Mr. Rueger:
The NRC staff, with technical assistance from its contractor, the Idaho National Engineering and Environmental Laboratory (INEEL) has reviewed and evaluated the information provided by the Pacific Gas and Electric Company, in its letter dated November 19, 1996, regarding its second 10-year interval inservice inspection program plan and associated requests for relief for Diablo Canyon Power Plant, Units 1 and 2. Additional information was provided in letters dated May 2, 1997, August 13, 1997, December 24, 1997, January 30, 1998, and April 10, 1998.
Pursuant to 10 CFR 50.55a(g)(6)(i), the staff has concluded that certain inservice examinations cannot be performed to the extent required by Section XI of the ASME Code.
In the case of Requests for Relief NDE-02, NDE-03 R1, NDE-4, NDE-5, NDE-6B, NDE-8 R1, NDE-9, NDE-13.1 R8, NDE-1 5 (Unit 1), NDE-16, NDE-17 R1 (Part 1), NDE-18 R1 (Part 1), NDE-1 9 R1, NDE-20 R1, NDE-21.1 R8, NDE-22 and NDE-25 (Unit 2), the licensee has demonstrated that specific Section XI requirements are impractical. Therefore, relief is granted as requested pursuant to 10 CFR 50.55a(g)(6)(i). The granting of this relief is authorized by law and willnot endanger life, property, or the common defense and security and is otherwise in the public interest, giving due consideration to the burden upon the licensee that could result ifthe requirements were imposed on the facility.
The staff has further concluded that the licensee's proposed alternatives contained in Requests for Relief NDE-26 R1 (Unit 2), NDE-29 (Unit 2), PRS-2 R1, PRSQ R1, and PA N-524 (NDE-31),
provide an acceptable level of quality and safety. Therefore, the licensee's proposed alternatives contained in Requests for Relief NDE-26 R1 (Unit 2), NDE-29 (Unit 2), PRS-2 R1, PRSP R1, and PA N-524 (NDE-31), are authorized pursuant to 10 CFR 50.55a(a)(3)(i).
The staff has also concluded that certain Code requirements contained in Requests for Relief NDE-17 R1 (Part 2), NDE-18 R1 (Part 2), NDE-30, PRS-1A and PRS-3, would result in hardship without a compensating increase in the level of quality and safety.
The alternatives contained in Requests for Relief NDE-17 R1 (Part 2), NDE-18 R1 (Part 2), NDE-30, PRS-1A and PRS-3 are authorized pursuant to 10 CFR 50.55a(a)(3)(ii)
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, Mr. Gregory M. Rueger October 15, 1998 In addition, the staff has determined that the requirements of 10 CFR 50.55a(g)(6)(ii)(A) were not met for Request for Relief NDE-01, and that the licensee must propose an alternative that provides an acceptable level of quality and safety.
In the April 10, 1998, submittal, the licensee stated that it has met and willcontinue to meet the augmented requirement.
However, no alternative to the augmented RPV examination has been proposed and until the licensee satisfies the augmented examination requirements of the regulations, reliefs from these Code requirements cannot be evaluated.
Section 50.55a(g)(6)(ii)(A)(1) revokes ail previous requests for relief for Item B1.10 welds, and relief cannot be granted from Code requirements until the augmented rule is satisfied.
Requests for Relief NDE-6, NDE-10, NDE-11, NDE-12, and NDE-14 R1 were withdrawn by the licensee's letter dated August 13, 1997.
Requests for Relief NDE-24, NDE-28, PRS-1 R1, and DOC-1 were withdrawn by the licensee's letter dated April 10, 1998. Requests for Relief PRS-1C, PRS-1D, and PRS-1E were evaluated and approved in the staff's safety evaluation dated May 1, 1998.
Requests for Relief NDE-6A, NDE-7, NDE-23, NDE-27, PRS-5, and CNT-1 are hereby denied by the staff.
The NRC staffs evaluation and conclusions are contained in Enclosure 1. Enclosure 2 is the INEELTechnical Evaluation Report.
Sincerely, Original Signed By William H. Bateman, Director Project Directorate IV-2 Division of Reactor Projects - III/IV Office of Nuclear Reactor Regulation Docket Nos. 50-275 and 50-323
- For previous concurrences see attached ORC Document Name:
DC95068.TER MIIBLUUM'.
Docket'1 PUBLIC
Enclosures:
- 1. Safety Evaluation PDIV-2 Reading
- 2. INEEL Technical Evaluation Report EAdensam cc w/encls: See next page WBateman EPeyton S Bloom THarris (SE) (TLH3)
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Mr. Gregory M. Rueger October 15, 1998 cc w/encls:
NRC Resident Inspector Diablo Canyon Nuclear Power Plant cJ'o U.S. Nuclear Regulatory Commission P. O. Box 369 Avila Beach, California 93424 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission Harris Tower 8 Pavillion 611 Ryan Plaza Drive, Suite 400 Arlington, Texas 76011-8064 Dr. Richard Ferguson, Energy Chair
. Sierra Club California 1100 11th Street, Suite 311 Sacramento, California 95814 Christopher J. Warner, Esq.
Pacific Gas 8 Electric Company Post Office Box 7442 San Francisco, California 94120 Ms. Nancy Culver San Luis Obispo Mothers for Peace P. O. Box 164 Pismo Beach, California 93448 Mr. Robert P. Powers Vice President and Plant Manager Diablo Canyon Nuclear Power Plant P. O. Box56 Avila Beach, California 93424 Chairman San Luis Obispo County Board of Supervisors Room 370 County Government Center San Luis Obispo, California 93408 Telegram-Tribune ATTN: Managing Editor 1321 Johnson Avenue P.O. Box 112 San Luis'Obispo, California 93406 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
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