ML110810103

Donald C. Cook Nuclear Plant Unit 2, Commitment to Perform Updated Boric Acid Precipitation Analysis for Recirculation Phase of a Postulated Large-Break Loss-Of-coolant Accident

ML110810103
Person / Time
Site:	Cook
Issue date:	03/11/2011
From:	Gebbie J P Indiana & Michigan Electric Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
AEP-NRC-2011-21, TAC ME1017
Download: ML110810103 (4)

Text

ENDIANA MICHIGAN A unit of American Electric Power Indiana Michigan Power One Cook Place Bridgman, MI 49106 IndianaMichiganPower.com March 11,2011 AEP-NRC-2011-21 10 CFR 50.90 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001

References:

Donald C. Cook Nuclear Plant Unit 2 Docket No. 50-316.Commitment to Perform Updated Boric Acid Precipitation Analysis for Recirculation Phase of a Postulated Large-Break Loss-Of-Coolant Accident (TAC No. ME1017)Letter from L. J. Weber, Indiana Michigan Power Company (I&M), to U.S.Nuclear Regulatory Commission (NRC) Document Control Desk,"Donald C. Cook Nuclear Plant Unit 2, Docket No. 50-316, License Amendment Request Regarding Large Break Loss-of-Coolant Accident Analysis Methodology," AEP-NRC-2009-23, dated March 19, 2009 (ADAMS Accession Number ML090930453).

Dear Sir or Madam:

By the referenced letter, Indiana Michigan Power Company (I&M) proposed to amend Appendix A, Technical Specifications, to the Donald C. Cook Nuclear Plant (CNP) Unit 2 Facility Operating License, DPR-74. I&M requested NRC approval to adopt a new analysis for the injection phase of a postulated large break loss-of-coolant accident (LBLOCA) for CNP Unit 2, and proposed to modify the associated Technical Specifications.

In a telephone discussion with members of the Nuclear Regulatory Commission staff on March 7, 2011, I&M committed to perform an updated analysis of the potential for boric acid precipitation to occur during the recirculation phase of a postulated LBLOCA, and transmit a summary of the analysis to the NRC no later than June 30, 2011. This letter documents that commitment.

Enclosure 1 to this letter provides an affirmation statement.

Enclosure 2 provides I&M's commitment in .tabular format. Copies of this letter and its enclosures are being transmitted to the Michigan Public Service Commission and the Michigan Department of Natural Resources and Environment, in accordance with the requirements of 10 CFR 50.91. Should you have any questions, please contact Mr. Michael K. Scarpello, Regulatory Affairs Manager, at (269) 466-2649.-.. : " , " :. ' , ,. 'i ., ., * .., -:: :" .'.' ',i ii!' i ;:A O-Q- ..

U. S. Nuclear Regulatory Commission Page 2 AEP-NRC-2011-21 Sincerely, Joel P. Gebbie Site Vice President JRW/jmr

Enclosures:

1.2.Affirmation Regulatory Commitment c: J. T. King, MPSC S. M. Krawec, Ft. Wayne AEP, w/o enclosures MDNRE -WHMD/RPS NRC Resident Inspector M. A. Satorius, NRC Region III P. S. Tam, NRC, Washington DC Enclosure 1 to AEP-NRC-2011-21 AFFIRMATION I, Joel P. Gebbie, being duly sworn, state that I am Site Vice President of Indiana Michigan Power Company (I&M), that I am authorized to sign and file this request with the Nuclear Regulatory Commission on behalf of I&M, and that the statements made and the matters set forth herein pertaining to I&M are true and correct to the best of my knowledge, information, and belief.Indiana Michigan Power Company Joel P. Gebbie Site Vice President SWORN TO AND SUBSCRIBED BEFORE ME THIS I I, DAYOF ,2011"- 1`401ary-Public My Commission Expires ______* C"2 ATTACHMENT 2 TO AEP-NRC-2011-21 REGULATORY COMMITMENT The following table identifies those actions committed to by Indiana Michigan Power Company (I&M) in this document.

Any other actions discussed in this submittal represent intended or planned actions by I&M. They are described to the Nuclear Regulatory Commission (NRC) for the NRC's information and are not regulatory commitments.

Commitment, Date Indiana Michigan Power Company will perform an updated analysis of No later than the potential for boric acid precipitation to occur during the recirculation June 30, 2011 phase of a postulated large break loss-of-coolant accident, and transmit a summary of the analysis to the NRC.