ML12180A121

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R. E. Ginna - Revised Response to Seismic Recommendation 2.1 of 10 CFR 50.54(f) Request for Information
ML12180A121
Person / Time
Site: Calvert Cliffs, Nine Mile Point, Ginna  Constellation icon.png
Issue date: 06/25/2012
From: Flaherty M
Constellation Energy Nuclear Group, EDF Group
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML12180A121 (3)


Text

". V Constellation Energy Nuclear Group, LLC 100 Constellation Way, Suite 200C Baltimore, MD 21202 CENG.,

a joInt venture of Comeai

-n June 25, 2012 U.S. Nuclear Regulatory Commssion 11555 Rockville Pike Rockville, MD 20852 ATTENTION:

SUBJECT:

REFERENCES:

Document Control Desk Calvert Cliffs Nuclear Power Plant, Units 1 and 2 Rerewed Facility Operating License Nos. DPR-53 and DPR-69 Docket Nos. 50-317 and 50-318 Nine Mile Point Nuclear Station, Units 1 and 2 Rerewed Facility Operating License Nos. DPR-63 and NPF-69 Docket Nos. 50-220 and 50-410 R.E. Ginna Nuclear Power Plant Renewed Facility Operating License No. DPR-18 Docket No. 50-244 Revised. Response to Seismic Recommendation 2.1 of 10 CFR 50.54(f) Request for Information (a)

Letter from E. J. Leeds (NRC) and M. R. Johnson, (NRC) to All Power Reactor Licensees and Holders of Construction Permits in Active or Deferred Status, dated March 12, 2012, Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendations 2.1, 2.3, and 9.3, of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident (b)

Letter from S. L. Belcher (CENG) to Document Control Desk (NRC),

dated June 8, 2012, Ninety-Day Response to Seismic Recommendation 2.1 of 10 CFR 50.54(f) Request for Information On March 12, 2012, the U.S. Nuclear Regulatory Commission (NRC) issued Reference (a). Enclosure 1 of Reference (a) contains specific requested actions, requested information, and required responses associated with Recommendation 2.1: Seismic. Reference (a) requires that, if an addressee cannot meet the requested response date, they 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 altermative course of action, and the estimated completion dates.

Document Control Desk June 25, 2012 Page 2 This letter provides a response consistent with the template developed by the Nuclear Energy Institute and NRC on Friday, June 8, 2012 and replaces Reference (b).

We have determined that we can meet the requested response dates for submitting the Seismic Hazard Evaluation provided 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 the NRC endorsement of the Screening, Prioritization and Implementation guidance, we will submit: (1) our intention to follow the endorsed guidance, or (2) provide an alternative approach.

This is a Regulatory Commitrrent.

At that time, we will assess whether we can meet the submittal deadlines for the Seismic Risk Evaluation and take the appropriate regulatory action.

Document Control Desk June 25, 2012 Page 3 If there are any questions concerning this letter, please contact Everett (Chip) Perkins at everett.perkins@cengllc.com or 410-470-3928.

Sincerely, Mark D. Flaherty STATE OF MARYLAND TO WIT:

CITY OF BALTIMORE I, Mark D. Flaherty, state that [ am the Manager - Fleet Engineering of Constellation Energy Nuclear Group, LLC and that I am duly authorized to execute and file this document on behalf of this company and its subsidiaries, Calvert Cliffs Nuclear Power Plant, LLC. Nine Mile Point Nuclear Station, LLC, and R.E. Ginna Nuclear Power Plant, LLC. To the best of my knowledge and belief, the statements contained in this document are true and correct. To the extent that these statements are not based on my personal knowledge, they are based upon information provided by employees and/or consultants of the companies.

Such information has been reviewed in accordance with company practice, and I believe it to be reliable.

Stiýscribed and sworn before me, a Notary Public in and for the State of Maryland and County of

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, thisl5"dayof TuAe

,2012.

WITNESS my Hand and Notarial Seal:

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l[ftary Public My Commission Expires:

MDF/EMT/bjd cc:

B..K. Vaidya, NRC M. C. Thadani, NRC N. S. Morgan, NRC W. M. Dean, NRC

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5s7/Zo, Date Resident Inspector, Calvert Cliffs Resident Inspector, Ginna Resident Inspector, Nine Mile Point S. Gray, DNR