ML100540317
| ML100540317 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 03/12/2010 |
| From: | Hall J Plant Licensing Branch IV |
| To: | Ridenoure R Southern California Edison Co |
| Hall, J R, NRR/DORL/LPL4, 301-415-4032 | |
| References | |
| GL-04-002, TAC MC4714, TAC MC4715, WCAP-16793 | |
| Download: ML100540317 (3) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 March 12, 2010 Mr. Ross T. Ridenoure Senior Vice President and Chief Nuclear Officer Southern California Edison Company San Onofre Nuclear Generating Station P.O. Box 128 San Clemente, CA 92674-0128
SUBJECT:
SAN ONOFRE NUCLEAR GENERATING STATION, UNITS 2 AND 3 GENERIC LETTER 2004-02 SUPPLEMENTAL RESPONSE (TAC NOS.
Dear Mr. Ridenoure:
By letters dated February 27,2008, February 23 and November 12, 2009 (Agencywide Documents Access and Management System (ADAMS) Accession Nos. ML080600406, ML090580024, and ML093210174, respectively); Southern California Edison (SCE) submitted supplemental responses to Generic Letter (GL) 2004-02, "Potential Impact of Debris Blockage on Emergency Recirculation during Design Basis Accidents at Pressurized-Water Reactors," for San Onofre Nuclear Generating Station, Units 2 and 3 (SONGS 2 and 3). The U.S. Nuclear Regulatory Commission (NRC) staff has reviewed your submittals with a process that involved a detailed review by a team of 10 subject matter experts, with focus on the review areas described in the NRC's "Content Guide for Generic Letter 2004-02 Supplemental Responses" (ADAMS Accession No. ML073110389).
We have no further questions at this time regarding your completion of corrective actions for GL 2004-02. In large part, the NRC staff's conclusion is based on your November 12, 2009, submittal, which addressed our request for additional information conveyed by letter dated November 26,2008 (ADAMS Accession No. ML083190120).
The NRC has not yet issued a final safety evaluation on Westinghouse Electric Company, LLC WCAP-16793-NP, "Evaluation of Long-Term Cooling Considering Particulate, Fibrous, and Chemical Debris in the Recirculating Fluid." Because your GL 2004-02 response refers to and relies on this topical report, we plan to defer issuance of a closure letter to SCE for GL 2004-02 until the safety evaluation is issued for WCAP-16793 later in 2010, and we have assurance that the in-vessel downstream effects issue has been addressed for SONGS 2 and 3. We will advise licensees in the near future regarding our expectations for licensee submittals to address in-vessel effects.
R. T. Ridenoure
- 2 If you have any further questions on this matter, please contact me at (301) 415-4032, or via e-mail at randy.hall@nrc.gov.
Sincerely, 1),
l
(
... fl-.. /.Ie~/"~
Ja Ie}; R~::;~senior Project Manager Pla;J' Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-361 and 50-362 cc: Distribution via Listserv
R. 1. Ridenoure
- 2 If you have any further questions on this matter, please contact me at (301) 415-4032, or via e-mail at randy.hall@nrc.gov.
Sincerely, IRA!
James R. Hall, Senior Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-361 and 50-362 cc: Distribution via Listserv DISTRIBUTION:
PUBLIC LPLIV r/f RidsAcrsAcnw_MailCTR Resource RidsNrrDorlDpr Resource RidsNrrDorlLpl4 Resource RidsNrrDssSsib Resource RidsNrrPMSanOnofre Resource RidsNrrLAJBurkhardt Resource RidsOgcRp Resource RidsRgn4MailCenter Resource RArchitzel, NRR/DSS/SSIB JLehning, NRR/DSS/SSIB SSmith, NRR/DSS/SSIB ADAMS Accession No ML100540317 OFFICE NRR/LPL4/PM NRR/LPL4/LA DSS/SSIB/BC f\\lRR/LPL4/BC NRR/LPL4/BC NAME JRHall JBurkhardt MScott MMarkley JRHall DATE 3/10/10 3/9/10 3/10/10 3/12/10 3/12/10 OFFICIAL RECORD COpy