ML092600205
| ML092600205 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 10/28/2009 |
| From: | Wang A Plant Licensing Branch IV |
| To: | Conway J Pacific Gas & Electric Co |
| Wang, A B, NRR/DORL/LPLIV, 415-1445 | |
| References | |
| GL-08-001, TAC MD7820, TAC MD7821 | |
| Download: ML092600205 (3) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 October 28, 2009 Mr. John T. Conway Senior Vice President - Energy Supply and Chief Nuclear Officer Pacific Gas and Electric Company Diablo Canyon Power Plant P.O. Box 3, Mail Code 104/6/601 Avila Beach, CA 93424 SUB..IECT:
DIABLO CANYON POWER PLANT, UNIT NOS. 1 AND 2 - RE: CLOSURE LETTER FOR GENERIC LETTER 2008-01, "MANAGING GAS ACCUMULATION IN EMERGENCY CORE COOLING, DECAY HEAT REMOVAL, AND CONTAINMENT SPRAY SYSTEMS" (TAC NOS. MD7820 AND MD7821)
Dear Mr. Conway:
On January 11, 2008, the U.S. Nuclear Regulatory Commission (NRC) issued Generic Letter (GL) 2008-01, "Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems" (Agencywide Documents Access and Management System (ADAMS) Accession No. ML072910759). The stated purpose of GL 2008-01 was (a) to request addressees to submit information to demonstrate that the subject systems are in compliance with the current licensing and design bases and applicable regulatory requirements, and that suitable design, operational, and testing control measures are in place for maintaining this compliance; and (b) to collect the requested information to determine if additional regulatory action is required.
GL 2008-01 requested that licensees provide the following information within 9 months of the date of the GL:
(a)
A description of the results of evaluations that were performed pursuant to requested actions specified in the GL. This description should provide sufficient information to demonstrate that you are or will be in compliance with the quality assurance criteria in Sections III, V, XI, XVI, and XVII of Appendix B to 10 CFR Part 50 and the licensing basis and operating license as those requirements apply to the subject systems; (b)
A description of all corrective actions, including plant, programmatic, procedure, and licensing basis modifications that you determined were necessary to assure compliance with these regulations; and, (c)
A statement regarding which corrective actions were completed, the schedule for completing the remaining corrective actions, and the basis for that schedule.
In your letters dated April 10, 2008, October 14,2008, and May 26,2009 (ADAMS Accession Nos. ML081120112, ML082970194, and ML091540018, respectively), you provided information
J. Conway
- 2 in response to the GL. The NRC staff has reviewed the submitted information and has concluded that for Diablo Canyon Power Plant, Units 1 and 2, your response to the GL is acceptable. Consequently, your GL response is considered closed and no further information or action is requested of you. Notwithstanding, the NRC's Region IV staff may decide to perform (and would contact you to schedule) an inspection using Temporary Instruction (TI) 2515/177, "Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems (NRC Generic Letter 2008-01)" (ADAMS Accession No. ML082950666). The TI 2515/177 is confirmatory in nature in that it directs NRC inspectors to selectively verify that the licensee has implemented or is in the process of acceptably implementing the commitments, modifications, and programmatically controlled actions described in the licensee's response to GL 2008-01.
If you have any questions regarding this letter, please feel free to contact me at (301) 415-1445.
Sincerely,
~\\vJWyr Alan Wang, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-275 and 50-323 cc: Distribution via Listserv
ML082950666). The TI 2515/177 is confirmatory in nature in that it directs NRC inspectors to selectively verify that the licensee has implemented or is in the process of acceptably implementing the commitments, modifications, and programmatically controlled actions described in the licensee's response to GL 2008-01.
If you have any questions regarding this letter, please feel free to contact me at (301) 415-1445.
Sincerely, IRA!
Alan Wang, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-275 and 50-323 cc: Distribution via Listserv DISTRIBUTION:
PUBLIC RidsNrrLAJBurkhardt Resource LPLIV R/F RidsNrrPMDiabloCanyon Resource RidsAcrsAcnw_MailCTR Resource RidsOgcRp Resource RidsNrrDorlDpr Resource RidsRgn4MailCenter Resource RidsNrrDorlLpl4 Resource DBeaulieu, NRR/DPR/PGCB RidsNrrDprPgcb Resource DWoodyatt, NRR/DSS/SRXB RidsNrrDssSrxb Resource WLyon, NRR/DSS/SRXB GCranston, NRR/DSS/SRXB TFarnholz, RIV/DRS/EB1 ADAMS Accession No*.. ML092600205
- Memo dated OFFICE NRRlLPL4/PM NRRlLPL4/PM NRR/LPL4/LA NRRlDSS/SRXB/BC NRRlLPL4/BC NRRlLPL4/PM NAME LWilkins AWang JBurkhardt GCranston*
MMarkley AWang DATE 10/28/09 10/28/09 10/28/09 9/3/09 10/28/09 10/28/09