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MONTHYEARML17111A8932017-04-13013 April 2017 Response to Request for Additional Information Regarding Mitigating Strategies Assessment (MSA) Report for Flooding Project stage: Response to RAI ML17284A1782017-10-0404 October 2017 Response to Information Need Request Regarding Mitigating Strategies Assessment Report for Flooding Project stage: Request ML17236A4372017-10-25025 October 2017 Flood Hazard Mitigation Strategies Assessment (Public)(Cac Nos. MF7980 and MF7981) Project stage: Other 2017-10-04
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Category:Letter
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[Table view] Category:Response to Request for Additional Information (RAI)
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Text
VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261
.. October 4, 2017 U.S. Nuclear Regulatory Commission Serial No.17-392 Attention: Document Control Desk NRA/WDC RO Washington, DC 20555 Docket Nos. 50-280/281 License Nos. DPR-32/37 VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION ENERGY VIRGINIA)
SURRY POWER STATION UNITS 1AND2 RESPONSE TO INFORMATION NEED REQUEST REGARDING MITIGATING STRATEGIES ASSESSMENT CMSA) REPORT FOR FLOODING In an email to the Nuclear Regulatory Commission (NRC) dated August 29, 2017, Dominion Energy Virginia stated the Surry FLEX support guidelines (FSGs) were adequate to address the modified FLEX strategies in response to the reevaluated flood hazard and no further revisions were required. In an email dated September 6, 2017 and a conference call on September 13, 2017, the NRC requested enhancement of the level of detail in the FLEX support guidelines (FSGs) that direct repowering of the Remote Monitoring Panel (RMP) following an extended loss of alternating current power and a loss of vital instrumentation. Therefore, Dominion Energy Virginia will revise O-FSG-5, "Initial Assessment and FLEX Equipment Staging," and 1/2-FSG-7, "Loss of Vital Instrumentation or Control Power," to clarify the amount of time available to repower the RMP and to add a note to ensure the portable generator cable/cable connections are not submerged.
If you have any questions regarding this information, please contact Gary Miller at (804) 273-2771 .
Mark D. Sartain Vice President Nuclear Engineering and Fleet Support COMMONWEALTH OF VIRGINIA COUNTY OF HENRICO The foregoing document was acknowledged before me, in and for the County and Commonwealth aforesaid, today by Mark 0. Sartain, who is Vice President Nuclear Engineering and Fleet Support 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.17-392 Docket Nos. 50-280/281 Page 2 of 2 Commitments made in this letter: No new regulatory commitments.
cc: U.S. Nuclear Regulatory Commission, Region II Regional Administrator Marquis One Tower 245 Peachtree Center Ave. NE Suite 1200 Atlanta, Georgia 30303-1257 K. R. Cotton Gross Project Manager U.S. Nuclear Regulatory Commission One White Flint North, Mail Stop 08 G-9A 11555 Rockville Pike Rockville, MD 20852-2738 J. R. Hall Project Manager U.S. Nuclear Regulatory Commission One White Flint North, Mail Stop 08 81-A 11555 Rockville Pike Rockville, MD 20852-2738 NRC Senior Resident Inspector Surry Power Station J. E. Reasor, Jr.
Old Dominion Electric Cooperative Innsbrook Corporate Center, Suite 300 4201 Dominion Blvd.
Glen Allen, Virginia 23060 I
1.