NL-09-151, Telephone Conference Call Regarding Met Tower Data for SAMA Analysis

Telephone Conference Call Regarding Met Tower Data for SAMA Analysis

ML093340049
Person / Time
Site:	Indian Point
Issue date:	11/16/2009
From:	Dacimo F Entergy Nuclear Northeast
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
NL-09-151
Download: ML093340049 (4)

Text

Enter-gy Nuclear Northeast Indian Point Energy Center

--- Entergy 450 Broadway, GSB P.O. Box 249 Buchanan, NY 10511-0249 Tel (914) 788-2055 Fred Dacimo Vice President License Renewal NL-09-151 November 16, 2009 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001

SUBJECT:

Entergy Nuclear Operations Inc.

Telephone Conference Call Regarding Met Tower Data for SAMA Analysis Indian Point Nuclear Generating Unit Nos. 2 & 3 Docket Nos. 50-247 and 50-286 License Nos. DPR-26 and DPR-64

REFERENCE:

1. Meeting Minutes, Telephone Conference, November 9, 2009, between Ms. Kimberly Green NRC and Entergy Staff Regarding Met Tower Data for SAMA Analyses

Dear Sir or Madam:

Entergy Nuclear Operations, Inc is providing this letter to document a discrepancy found with the wind direction inputs to the MACCS2 code for the IPEC SAMA analysis. Entergy found the discrepancy during investigations to resolve a question from the NRC staff regarding wind directions. The method used to obtain the five-year average hourly wind directions has been determined faulty. This issue has been entered into Entergy Corrective Action Program as CR-HQN-2009-01044. IPEC will correct the wind direction inputs, re-analyze the SAMAs for both units and provide the results to the NRC by December 16, 2009.

As requested during the telephone conference summarized in reference 1, Entergy will provide the following information on or before December 16, 2009.

" The meteorological data and justification supporting its use in the SAMA analysis (e.g., if a single year is used or an average of several years),

• Revised estimates of the offsite population dose and offsite economic costs,

• Identification of the meteorological tower elevation from which meteorological data were obtained and the rationale for selecting the data from that tower elevation,

• Revised SAMA analysis results, specifically for the analysis case discussed in response to RAI 4e, dated February 5, 2008, and

• The complete MACCS2 input file used for the reanalysis (in electronic format).

/A-ocI

. JkALI

NL-09-151 Page 2 of 2 If you have any questions, or require additional information, please contact Mr. Robert Walpole at 914-734-6710.

Sincer FRD/dmtý

Attachment:

1. Regulatory Commitment cc: Mr. Samuel J. Collins, Regional Administrator, NRC Region I Mr. Sherwin E. Turk, NRC Office of General Counsel, Special Counsel Ms. Kimberly Green, NRC Safety Project Manager Mr. John Boska, NRR Senior Project Manager IPEC NRC Resident Inspector's Office Mr. Paul Eddy, New York State Department of Public Service Mr. Francis J. Murray, President and CEO, NYSERDA

ATTACHMENT 1 TO NL-09-151 Requlatorv Commitment ENTERGY NUCLEAR OPERATIONS, INC.

INDIAN POINT NUCLEAR GENERATING UNIT NOS. 2 & 3 DOCKET NOS. 50-247 AND 50-286 LICENSE NOS. DPR-26 AND DPR-64

NL-09-151 Attachment 1 Docket Nos. 50-247 & 50-286 Page 1 of 1 Regulatory Commitment The following table identifies an action committed to by Entergy in this document. Any other statements in this submittal are provided for information purposes and are not considered to be regulatory commitments.

1. COMMITMENT IMPLEMENTATION SOURCE RELATED SCHEDULE LRA SECTION I AUDIT ITEM Entergy will provide the following information on or IP2: NL-09-151 Appendix E before December 16, 2009. December 16, Section 4.21 2009

• The meteorological data and justification supporting its use in the SAMA analysis (e.g., IP3:

if a single year is used or an average of December 16, several years), 2009

• Revised estimates of the offsite population dose and offsite economic costs,

. Identification of the meteorological tower elevation from which meteorological data were obtained and the rationale for selecting the data from that tower elevation,

• Revised SAMA analysis results, specifically for the analysis case discussed in response to RAI 4e, dated February 5, 2008, and The complete MACCS2 input file used for the reanalysis (in electronic format).