ML12171A007
| ML12171A007 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 06/11/2012 |
| From: | Heacock D Dominion, Dominion Resources Services |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| 12-205D | |
| Download: ML12171A007 (3) | |
Text
Dominion Resources Services, Inc.
Dn Innsbrook Technical Center 5000 Dominion Boulevard, 2SE, Glen Allen, VA 23060 June 11, 2012 U.S. Nuclear Regulatory Commission Serial No.
12-205D Attention: Document Control Desk NL&OS/WDC RO Washington, DC 20555 Docket Nos.
50-336/423 License Nos.
DPR-65 NPF-49 DOMINION NUCLEAR CONNECTICUT. INC.
MILLSTONE POWER STATION UNITS 2 AND 3 90 DAY RESPONSE TO MARCH 12, 2012 INFORMATION REQUEST REGARDING SEISMIC ASPECTS OF RECOMMENDATION 2.1
Reference:
- 1. NRC Letter, "Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(0 Regarding Recommendations 2.1, 2.3, and 9.3, of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident," dated March 12, 2012.
On March 12, 2012, the Nuclear Regulatory Commission (NRC) issued Reference 1 to all power reactor licensees and holders of construction permits in active or deferred status. Enclosure 1 of Reference 1 contains specific Requested Actions, Requested Information, and Required Responses associated with Recommendation 2.1, Seismic Evaluations.
Reference 1 requires that, if an addressee cannot meet the requested response date, it must provide a response to the NRC within 90 days of the date of the information request describing the licensee's proposed alternative course of action, the basis for the acceptability of the proposed alternative course of action, and the estimated completion dates.
Recommendation 2.1: Seismic Dominion Nuclear Connecticut, Inc. (DNC) has determined that we can meet the requested response dates for submitting the Seismic Hazard Evaluation provided that the NRC and industry reach a mutual understanding of critical implementation details associated with calculating the seismic hazard by the end of July 2012. For example, the critical details that need to be mutually understood prior to commencement of the new seismic hazard evaluations include the elevation(s) at which the hazard/GMRS will be calculated and the development of site amplification factors for sites with limited soil/rock profile data.
Within 60 days of NRC endorsement of the Screening, Prioritization and Implementation guidance, DNC will submit: (1) its intention to follow the endorsed guidance, or (2) an alternative approach. At that time, DNC will assess whether it can meet the submittal deadlines for the Seismic Hazard Evaluation and the Seismic Risk Evaluation and take the appropriate regulatory action.
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Serial No. 12-205D Docket Nos. 50-336/423 Page 2 of 3 If you have any questions regarding this information, please contact Wanda Craft at (804) 273-4687.
Sincerely, David A. Heacock President and Chief Nuclear Officer Dominion Nuclear Connecticut, Inc.
VICKI L. HULL Notary Public Commonwealth of Virginia 140542 1my commission Expires May 31. 2014 COMMONWEALTH OF VIRGINIA M
COUNTY OF HENRICO
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The foregoing document was acknowledged before me, in and for the County and Commonwealth aforesaid, today by David A. Heacock, who is President and Chief Nuclear Officer of Dominion Nuclear Connecticut, Inc.
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.
Acknowledged before me this. //_:'-*-day of
.2012.
My Commission Expire d
3
/
Notary Public Commitments made in this letter: No new regulatory commitments
Serial No. 12-205D Docket Nos. 50-336/423 Page 3 of 3 cc:
U.S. Nuclear Regulatory Commission Region I 2100 Renaissance Blvd Suite 100 King of Prussia, PA 19406-2713 J. S. Kim Project Manager U.S. Nuclear Regulatory Commission One White Flint North, Mail Stop 08 C2A 11555 Rockville Pike Rockville, MD 20852-2738 NRC Senior Resident Inspector Millstone Power Station