L-PI-07-060, Supplement to License Amendment Request (LAR) for Miscellaneous Technical Specification (TS) Improvements (TAC Nos. MD 2822 and MD 2823)
| ML071980141 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 07/16/2007 |
| From: | Wadley M Nuclear Management Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| L-PI-07-060, TAC MD2822, TAC MD2823 | |
| Download: ML071980141 (4) | |
Text
Prairie Island Nuclear Generating Plant Operated by Nuclear Management Company, LLC JUL 1 6 2007 L-PI-07-060 10 CFR 50.90 U S Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Prairie Island Nuclear Generating Plant Units 1 and 2 Dockets 50-282 and 50-306 License Nos. DPR-42 and DPR-60 Supplement to License Amendment Request (LAR) for Miscellaneous Technical Specification (TS) Improvements (TAC Nos. MD 2822 and MD 2823)
References:
- 1. License Amendment Request (LAR) for Miscellaneous Technical Specification (TS) Improvements, dated August 14, 2006, Accession Number ML062270248.
In Reference 1, Nuclear Management Company, LLC (NMC) submitted an LAR to revise the TS for the Prairie Island Nuclear Generating Plant (PINGP) Units 1 and 2 to make miscellaneous improvements, including changes in TS 3.7.10, "Control Room Special Ventilation System (CRSVS)". NMC submits this supplement in accordance with the provisions of 10 CFR 50.90.
The Reference 1 LAR proposed to revise Surveillance Requirement (SR) 3.7.10.4 to verify each CRSVS train delivers the required flow "through the associated CRSVS filter". The purpose of this SR is to verify performance of the fans. The NRC Staff expressed concern that the use of singular "filter" may not adequately describe the system design since each CRSVS train consists of a prefilter, high efficiency particulate air filter and an activated charcoal adsorber section. For clarification, this supplement revises the proposed SR to verify each CRSVS train delivers the required flow "through the associated CRSVS filters". The specific TS wording is provided in Enclosure 1 to this letter.
The supplemental information provided in this letter does not impact the conclusions of the Determination of No Significant Hazards Consideration and Environmental Assessment presented in the August 14, 2006 submittal.
In accordance with 10 CFR 50.91, NMC is notifying the State of Minnesota of this LAR by transmitting a copy of this letter and enclosure to the designated State Official.
Please address any comments or questions regarding this LAR supplement to Mr. Dale Vincent, P.E., at 1-651-388-1 121.
171 7 Wakonade Drive East Welch, Minnesota 55089-9642 Telephone: 651.388.1 121
Document Control Desk Page 2 Summaw of Commitments This letter contains no new commitments and no revisions to existing commitments.
I declare under penalty of perjury that the foregoing is true and correct.
Executed on 1 6 2007 Michael D. Wadley Site Vice President, Prairie Island Nuclear Generating Plant Units 1 and 2 Nuclear Management Company, LLC Enclosures (1) cc:
Administrator, Region Ill, USNRC Project Manager, Prairie Island, USNRC Resident Inspector, Prairie Island, USNRC State of Minnesota Proposed Technical Specification Changes (final)
Technical Specification Page 1 page follows
CRSVS 3.7.10 SR 3.7.10.1 Operate each CRSVS train > 15 minutes.
SURVEILLANCE REQUIREMENTS 3 1 days SURVEILLANCE SR 3.7.10.2 Perform required CRSVS filter testing in accordance with the Ventilation Filter Testing Program (VFTP).
FREQUENCY In accordance with VFTP SR 3.7.10.3 Verifl each CRSVS train actuates on an actual or simulated actuation signal.
Prairie Island Units 1 and 2 24 months SR 3.7.10.4 Verifl each CRSVS train in the Emergency Mode delivers 3600 to 4400 cfm through the associated CRSVS filters.
Unit 1 - Amendment No. 4343 1 80 3.7.10-3 Unit 2 - Amendment No. 4-49 170 24 months on a STAGGERED TEST BASIS