ML102440592
| ML102440592 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 09/01/2010 |
| From: | Richard Ennis Plant Licensing Branch 1 |
| To: | Chernoff H Plant Licensing Branch 1 |
| Ennis R, NRR/DORL, 415-1420 | |
| References | |
| TAC ME3574, TAC ME3575 | |
| Download: ML102440592 (4) | |
Text
September 1, 2010 MEMORANDUM TO:
Harold K. Chernoff, Chief Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM:
Richard B. Ennis, Senior Project Manager /ra/
Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
SUBJECT:
SALEM NUCLEAR GENERATING STATION, UNIT NOS. 1 AND 2, DRAFT REQUEST FOR ADDITIONAL INFORMATION (TAC NOS. ME3574 AND ME3575)
The attached draft request for information (RAI) was transmitted on September 1, 2010, to Mr. Jeff Keenan of PSEG Nuclear LLC (the licensee). This information was transmitted to facilitate an upcoming conference call in order to clarify the licensee=s amendment request for Salem Nuclear Generating Station (Salem), Unit Nos. 1 and 2, dated March 23, 2010. The proposed amendment would modify the Technical Specifications by relocating specific surveillance frequencies to a licensee-controlled document. The proposed amendment is based on Nuclear Regulatory Commission (NRC)-approved Technical Specification Task Force (TSTF)
Traveler TSTF-425, Revision 3, Relocate Surveillance Frequencies to Licensee Control -
RITSTF [Risk-Informed TSTF] Initiative 5b.
This memorandum and the attachment do not convey or represent an NRC staff position regarding the licensees request.
Docket Nos. 50-272 and 50-311
Attachment:
Draft RAI
September 1, 2010 MEMORANDUM TO:
Harold K. Chernoff, Chief Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM:
Richard B. Ennis, Senior Project Manager /ra/
Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
SUBJECT:
SALEM NUCLEAR GENERATING STATION, UNIT NOS. 1 AND 2, DRAFT REQUEST FOR ADDITIONAL INFORMATION (TAC NOS. ME3574 AND ME3575)
The attached draft request for information (RAI) was transmitted on September 1, 2010, to Mr. Jeff Keenan of PSEG Nuclear LLC (the licensee). This information was transmitted to facilitate an upcoming conference call in order to clarify the licensee=s amendment request for Salem Nuclear Generating Station (Salem), Unit Nos. 1 and 2, dated March 23, 2010. The proposed amendment would modify the Technical Specifications by relocating specific surveillance frequencies to a licensee-controlled document. The proposed amendment is based on Nuclear Regulatory Commission (NRC)-approved Technical Specification Task Force (TSTF)
Traveler TSTF-425, Revision 3, Relocate Surveillance Frequencies to Licensee Control -
RITSTF [Risk-Informed TSTF] Initiative 5b.
This memorandum and the attachment do not convey or represent an NRC staff position regarding the licensee's request.
Docket Nos. 50-272 and 50-311
Attachment:
Draft RAI DISTRIBUTION PUBLIC LPL1-2 Reading RidsNrrDorlLpl1-2 Resource RidsNrrDorlDpr Resource RidsNrrPMSalem Resource TGhosh, NRR/DRA/APLA ACCESSION NO.: ML102440592 OFFICE LPL1-2/PM NAME REnnis DATE 9/1/2010 OFFICIAL RECORD COPY
DRAFT REQUEST FOR ADDITIONAL INFORMATION REGARDING PROPOSED LICENSE AMENDMENT RISK-INFORMED RELOCATION OF SURVEILLANCE FREQUENCY REQUIREMENTS SALEM NUCLEAR GENERATING STATION, UNIT NOS. 1 AND 2 DOCKET NOS. 50-272 AND 50-311 By letter dated March 23, 2010 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML100910154), PSEG Nuclear LLC (PSEG or the licensee) submitted an amendment request for Salem Nuclear Generating Station (Salem), Unit Nos. 1 and 2. The proposed amendment would modify the Technical Specifications by relocating specific surveillance frequencies to a licensee-controlled document. The proposed amendment is based on Nuclear Regulatory Commission (NRC)-approved Technical Specification Task Force (TSTF)
Traveler TSTF-425, Revision 3, Relocate Surveillance Frequencies to Licensee Control -
RITSTF [Risk-Informed TSTF] Initiative 5b.
The NRC staff has reviewed the information the licensee provided that supports the proposed amendment and would like to discuss the following issues to clarify the submittal.
- 1.
Section 2.2 of Attachment 2 of the application dated March 23, 2010, states that PSEG completed the 4.3 update to the Salem Probabilistic Risk Assessment (PRA) model in late 2009 as the result of the incorporation of significant plant changes into the prior PRA model. Confirm that the 4.3 PRA update also incorporated model and documentation changes that resolved all of those gaps identified by the peer review on the 4.2 model (used in the September 21, 2009, license amendment request to extend the Type A containment test interval for Salem Unit 1) which no longer appear as gaps in Table 2-1 (of Attachment 2) for this application.
The following questions relate to facts and observations (F&Os) entries in Table 2-1 in of the application which identifies gaps to Capability Category II of the American Society of Mechanical Engineers (ASME) PRA standard.
- 2.
For F&O DA-A1a-01, confirm that component boundaries are properly defined and that the supporting requirement is met, and that only the documentation is insufficient.
- 3.
For F&O DA-C1-01, confirm that the test and maintenance philosophies and approach are the same for Salem as the generic unavailability data used and that the supporting requirement is met. In addition, confirm that only the documentation is insufficient.
- 4.
Regarding F&O DA-C2-01, confirm whether plant-specific data would be developed for SSCs whose surveillance intervals are under consideration for change.
- 5.
For F&O DA-C6-01, provide additional information that confirms this is only a documentation issue and that the number of plant-specific demands on standby components is accurately counted.
Attachment
- 6.
The description of F&O DA-C10-01 matches neither the element and supporting requirement in the ASME PRA standard nor the description of the same F&O in PSEGs February 24, 2010, letter, Response to Request for Additional Information Regarding License Amendment Request for One-Time Extension of the Type A Test Interval.
Provide a description of F&O DA-C10-01 (as relevant for the 4.3 PRA update) and an assessment of the impact on this application.
- 7.
Regarding F&O DA-D4-01, confirm that the relevant comparisons, and an evaluation of the issue of relatively small generic alpha factors possibly biasing the updated value, have been performed, and that it is only the documentation that is insufficient.
- 8.
For F&Os SY-B11-01, DA-D6-01, QU-D3-01, QU-D4-01, QU-F2-01, LE-F1b-01, provide additional information that confirms that the supporting requirements are actually met (e.g., through appropriate analyses, reviews, and evaluations, and that it is only the documentation that is insufficient).