ML17312A958
| ML17312A958 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 09/11/1996 |
| From: | Clifford J NRC (Affiliation Not Assigned) |
| To: | Stewart W ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| References | |
| GL-92-01, GL-92-1, TAC-M92709, TAC-M92710, TAC-M92711, NUDOCS 9609170127 | |
| Download: ML17312A958 (5) | |
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASH IN G TO N y 0 C 2055&0001 September 11, 1996 Mr. William L. Stewart Executive Vice President, Nuclear Arizona Public Service Company Post Office Box 53999 Phoenix, Arizona 85072-3999
SUBJECT:
CLOSEOUT OF GENERIC LETTER 92-01, REVISION 1, SUPPLEMENT 1, "REACTOR VESSEL STRUCTURAL INTEGRITY" FOR THE PALO VERDE NUCLEAR GENERATING STATION (TAC NOS.
- M92709, M92710, M92711)
Dear Mr. Stewart:
On May 19, 1995, the NRC issued Generic Letter 92-01, Revision 1, Supplement 1
(GL 92-01, Rev.
1, Supp.
1).
In the subject GL, the NRC requested that licensees perform a review of their reactor pressure vessel structural integrity assessments in order "to identify, collect, and report any new data pertinent to [the] analysis of the [the] structural integrity of their reactor pressure vessels (RPVs) and to assess the impact of that data on their RPV integrity analyses relative to the requirements of 10 CFR 50.60, 10 CFR 50.61, Appendices G and H to 10 CFR Part 50 (which encompass pressurized thermal shock (PTS) and upper shelf energy (USE) evaluations),
and any potential impact on low temperature overpressure (LTOP) limits or pressure-temperature (P-T) limits."
More specifically, the NRC requested in GL 92-01 that licensees provide the following information:
(1) a description of those actions taken or planned to locate all data relevant to the determination of RPV integrity, or an explanation of why the existing data base is considered complete as previously submitted; (2) an assessment of any change in best-estimate chemistry based on consideration of all relevant data; (3)
(4) a determination of the need for the use of the ratio procedure in accordance with the established Position 2. 1 of Regulatory Guide (RG) 1.99, Revision 2, for those licensees that use surveillance data to provide a basis for the RPV integrity evaluation; and II a written report providing any newly acquired data as specified above and (1) the results of any necessary revisions to the evaluations of the RPV integrity in accordance with the requirements of 10 CFR 50.60, 10 CFR 50.61, Appendices G and H to 10 CFR Part 50, and any potential impact on the LTOP and P-T limits in the technical specifications, or (2) a certification that previously submitted evaluations remain valid.
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Hr. William L. Stewart September 11, 1996 Revised evaluations and certifications were to include consideration of Position 2. 1 of RG 1.99, Revision 2, as applicable, and any new data.
The information in Reporting Item (1) was to be submitted within 90 days of the issuance of the GL.
The information in Reporting Items (2) - (4) was to be submitted within 6 months of the issuance of the GL.
In your response dated August 17,
- 1995, you indicated that the previously submitted evaluations remain valid.
The staff therefore considers your efforts regarding GL 92-01, Rev 1.,
Supp 1., complete.
This completes all action related to TAC Numbers
- H92709, H92710, H92711.
If you have any questions related to this action, please contact me at 301-415-1352.
Sincerely, Original Signed By James W. Clifford, Senio} Project Manager Project Directorate IV-2 Division of Reactor Projects - III/IV Office of Nuclear Reactor Regulation Docket Nos.
STN 50-528, STN 50-529, and STN 50-530 I
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Mr. William L. Stewart September 11, 1996 CC:
Mr. Steve Olea Arizona Corporation Commission 1200 W. Washington Street Phoenix, Arizona 85007 Douglas Kent Porter Senior Counsel Southern California Edison Company Law Department, Generation Resources P.O.
Box 800
- Rosemead, California 91770 Senior Resident Inspector USNRC P. 0.
Box 40 Buckeye, Arizona 85326 Regional Administrator, Region IV U. S. Nuclear Regulatory Commission Harris Tower E Pavillion 611 Ryan Plaza Drive, Suite 400 Arlington, Texas 76011-8064
- Chairman, Board of Supervisors ATTN:
Chairman 301 W. Jefferson, 10th Floor
- Phoenix, Arizona 85003 Mr. Aubrey V. Godwin, Director Arizona Radiation Regulatory Agency 4814 South 40 Street
- Phoenix, Arizona 85040 Ms. Angela K. Krainik, Manager Nuclear Licensing Arizona Public Service Company P.O.
Box 52034
- Phoenix, Arizona 85072-2034 Mr. John C. Horne, Vice President Power Supply Palo Verde Services 2025 N. Third Street, Suite 220
- Phoenix, Arizona 85004