NLS2010076, Response to Request for Additional Information Regarding 10 CFR 50.55a Request Number RI-36, Revision 0
| ML102350161 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 08/17/2010 |
| From: | O'Grady B Nebraska Public Power District (NPPD) |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| NLS2010076, TAC ME3321 | |
| Download: ML102350161 (4) | |
Text
N Nebraska Public Power District Always there when you need us 10 CFR 50.55a NLS2010076 August 17, 2010 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555-0001
Subject:
Response to Request for Additional Information Regarding 10 CFR 50.55a Request Number RI-36, Revision 0 Cooper Nuclear Station, Docket No. 50-298, DPR-46
References:
1)
Letter from Carl F. Lyon, U.S. Nuclear Regulatory Commission, to Stewart B. Minahan, Nebraska Public Power District, dated July 2, 2010, "Cooper Nuclear Station - Request for Additional Information Re: Relief Request No. RI-36 (TAC No. ME3321)"
- 2)
Letter from Brian J. O'Grady, Nebraska Public Power District, to the U.S.
Nuclear Regulatory Commission, dated February 5, 2010, "10 CFR 50.55a Request Number RI-36, Revision 0"
Dear Sir or Madam:
The purpose of this letter is for the Nebraska Public Power District (NPPD) to submit a response to the Nuclear Regulatory Commission (NRC) Request for Additional Information (RAI) dated July 2, 2010 (Reference 1). The additional information requested is in support of the NRC review of NPPD's 10 CFR 50.55a Request Numiber RI-36, Revision 0, submitted February 5, 2010 (Reference 2).
The response to the RAI is provided in the attachment to this letter.
Should you have any questions regarding this submittal, please contact David Van Der Kamp, Licensing Manager, at (402) 825-2904.
COOPER NUCLEAR STATION P.O. Box 98 / Brownville, NE 68321-0098 Telephone: (402) 825-3811 / Fax: (402) 825-5211 www.nppd.com Ar' f 7
NLS2010076 Page 2 of 2
- cerely, Brian J. O'Grady Vice President - Nuc ear and Chief Nuclear Officer
/dm Attachment cc:
Regional Administrator w/ attachment USNRC - Region IV Cooper Project Manager w/ attachment USNRC - NRR Project Directorate IV-1 Senior Resident Inspector w/ attachment USNRC - CNS NPG Distribution w/ attachment CNS Records w/ attachment
NLS2010076 Attachment Attachment Response to Request for Additional Information Regarding 10 CFR 50.55a Request Number RI-36, Revision 0 Cooper Nuclear Station, Docket No. 50-298, DPR-46 The U.S. Nuclear Regulatory Commission staff has reviewed the information provided by Nebraska Public Power District (the licensee)for Cooper Nuclear Station (CNS) in its letter dated February 5, 2010, and determined that additional information is necessary to complete the review of Relief Request No. RI-36. Please provide a response that addresses the following question.
NRC Question No. 1 Describe the frequency with which the contact pyrometer will be used to measure the preheat and interpass temperature (e.g., right before welding and before the welding of each weld bead, etc.).
Nebraska Public Power District Response A contact pyrometer will be used to measure the preheat temperature prior to welding.
The interpass temperatures will be measured every three (3) to five (5) beads for the first three (3) layers and every six (6) to ten (10) beads for the remaining layers. This action will be implemented as part of implementing RI-36, Revision 0, which is a contingency 10 CFR 50.55a request for Cooper Nuclear Station Refueling Outage 26.
ATTACHMENT 3 LIST OF REGULATORY COMMITMENTS© 4 I
ATTACHMENT 3 LIST OF REGULATORY COMMITMENTS@4 Correspondence Number: NLS2010076 The following table identifies those actions committed to by Nebraska Public Power District (NPPD) in this document. Any other actions discussed in the submittal represent intended or planned actions by NPPD. They are described for information only and are not regulatory commitments. Please notify the Licensing Manager at Cooper Nuclear Station of any questions regarding this document or any associated regulatory commitments.
COMMITMENT COMMITTED DATE COMMITMENT NUMBER OR OUTAGE A contact pyrometer will be used to measure the RE-26, Contingent upon preheat temperature prior to welding. The interpass the need to implement RI-temperatures will be measured every three (3) to five NLS2010076-01 36.
(5) beads for the first three (3) layers and every six (6) to ten (10) beads for the remaining layers.
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