ML11355A154
| ML11355A154 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 12/15/2011 |
| From: | Lane N Virginia Electric & Power Co (VEPCO) |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| BL-11-001 | |
| Download: ML11355A154 (4) | |
Text
VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 10 CFR 50.54(f)
December 15, 2011 U.S. Nuclear Regulatory Commission Serial No.:
11-663 Attention: Document Control Desk NL&OS/GDM R2 11555 Rockville Pike Docket Nos.:
50-338/339 Rockville, Maryland 20852 License Nos.:
NPF-4/7 VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION)
NORTH ANNA POWER STATION UNITS 1 AND 2 NRC BULLETIN 2011-01 MITIGATING STRATEGIES RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION On May 11, 2011, the U.S. Nuclear Regulatory Commission (NRC) issued Bulletin 2011-01, "Mitigating Strategies". The Bulletin required two separate licensee submittals as follows: 1) a 30-day response to confirm continued compliance with 10 CFR 50.54(hh)(2), and 2) a 60-day response to provide requested information associated with mitigation strategies programs for 10 CFR 50.54(hh)(2). The Dominion 30-day and 60-day responses for North Anna Power Station (NAPS) Units 1 and 2 were submitted to the NRC on June 7, 2011 (Serial No. 11-290C) and July 11, 2011 (Serial No.
11-290G), respectively.
By letter dated November 17, 2011 the NRC requested additional information regarding the NAPS 60-day response associated with the maintenance or testing of monitor nozzles, spray nozzles, or similar devices to ensure that they will be functional when needed. The requested information is provided in the attachment.
If there are any questions concerning this letter, please contact Mr. Gary D. Miller at (804) 273-2771.
Sincerely, N.,L. a Site Vice President COMMONWEALTH OF VIRGINIA COUNTY OF LOUISA The foregoing document was acknowledged before me, in and for the County and Commonwealth aforesaid, today by N. L. Lane, who is Site Vice President - North Anna Power Station Units 1 and 2, of Virginia Electric and Power Company. He has affirmed before me that he is duly authorized to execute and file the foregoing document in behalf of that Company, and that the statements in the document are true to the best of his knowledge and belief.
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Serial No.11-663 Docket Nos. 50-338/339 Page 2 of 2 Commitments made by this letter: None.
Attachment:
Response to Request for Additional Information, NRC Bulletin 2011-01, Mitigating Strategies cc:
U.S. Nuclear Regulatory Commission - Region II Marquis One Tower, NE Suite 1200 Atlanta, Georgia 30303-1257 NRC Senior Resident Inspector North Anna Power Station V. Sreenivas NRC Project Manager U. S. Nuclear Regulatory Commission One White Flint North Mail Stop 08 G-9A 11555 Rockville Pike Rockville, MD 20852-2738
J Serial Number 11-663 Docket Nos. 50-338/339 Attachment RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION NRC BULLETIN 2011-01, MITIGATING STRATEGIES NORTH ANNA POWER STATION UNITS 1 AND 2 VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION)
I Serial Number 11-663 Docket Nos. 50-338/339 Attachment Page 1 of 1 Response to Request for Additional Information NRC Bulletin 2011-01, Mitigating Strategies On May 11, 2011, the U.S. Nuclear Regulatory Commission (NRC) issued Bulletin 2011-01, "Mitigating Strategies". The Bulletin required two separate licensee submittals in response to the Bulletin as follows: 1) a 30-day response to confirm continued compliance with 10 CFR 50.54(hh)(2), and 2) a 60-day response to provide requested information associated with mitigation strategies programs for 10 CFR 50.54(hh)(2).
The Dominion 30-day and 60-day responses for North Anna Power Station (NAPS)
Units 1 and 2 were submitted to the NRC on June 7, 2011 (Serial No. 11-290C) and July 11, 2011 (Serial No. 11-290G), respectively. By letter dated November 17, 2011 the NRC requested additional information.
The NRC's question and Dominion's response is provided below.
NRC Question Describe in detail the maintenance or testing of monitor nozzles, spray nozzles, or similar devices to ensure that they will be functional when needed.
The bulletin requested that each licensee describe in detail the maintenance and testing on equipment procured to support the mitigating strategies to ensure that it will be functional when needed. In the context of the mitigating strategies, these devices are commonly used for firefighting, spent fuel pool spray strategies, and as a means to reduce the magnitude of fission product releases. The Nuclear Regulatory Commission staff could not determine if you performed activities to ensure that these devices will be functional when needed.
Dominion Response The oscillating monitor nozzles discussed in the North Anna 60-day bulletin response are staged on the fire hose trailer, which is stored in an onsite warehouse that is locked during off-normal hours. The equipment is verified as available, accessible, and in good condition on a three year frequency. The oscillating monitor nozzles were tested upon initial receipt, and the station fire brigade was trained on their use. The oscillating monitor nozzles were also used to perform a spray pattern validation over a simulated spent fuel pool (SFP) area to ensure the SFP Spray Mitigating Strategy could be implemented as written.