ML102720368
| ML102720368 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 05/07/2010 |
| From: | Cotton K Plant Licensing Branch II |
| To: | Geoffrey Miller Dominion |
| Cotton K, NRR/DORL, 301-415-1438 | |
| References | |
| Download: ML102720368 (2) | |
Text
From:
Cotton, Karen Sent:
Wednesday, September 29, 2010 11:25 AM To:
Thorpe, April
Subject:
FW: RAI Questions Please get an ML number for this item.
- Thanks, Karen Karen Cotton NRR/DORL PM - Surry Units 1 and 2 Karen.Cotton@nrc.gov 301-415-1438 From: Cotton, Karen Sent: Friday, May 07, 2010 12:06 PM To: Gary D Miller
Subject:
RAI Questions REQUEST FOR ADDITIONAL INFORMATION REQUESTED CHANGE TO TECHNICAL SPECIFICATIONS CORE OPERATING LIMITS REPORT MODIFICATIONS SURRY POWER STATION, UNITS 1 AND 2 DOCKET NUMBER 50-280/50-281
- 1. Review the methodology references listed on revised Technical Specification Page 6.2-2, and determine the currency of all references listed. Provide the results of this review. hould any references be determined to be inapplicable to current or recent fuel cycles, please revise the TS page to remove them and renumber the reference list.
- 2. The NRC staff reviewed the SER approving the North Anna Improved Technical Specifications conversion and was unable to locate a sufficient technical basis for extending the completion time for a precision reactor coolant system flow measurement beyond the 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> contained in the Standard Technical Specifications. Please provide technical basis for this deviation between NUREG-1431/TSTF Traveler 339-A, and the Surry proposed TS.
- 3. The license amendment request (Attachment 1, Page 5) states, DNB analyses for the Westinghouse 15x15 Upgrade product will use the NRC-approved VIPRE-D code and the W-3 or WRB-1 correlation, DOM-NAF-2-A, depending on the transient. The clause, DOM-NAF A, appears to be dangling, and it is not clear what it means in the context of this sentence.
Please clarify.
- 4. Does this license amendment request represent a first-time implementation of DOMNAF-2-A at Surry? Please explain whether this method has been used previously without a requirement to appear as a COLR reference.
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FW: RAI Questions Sent Date: 9/29/2010 11:25:05 AM Received Date: 9/29/2010 11:25:05 AM From: Cotton, Karen Created By: Karen.Cotton@nrc.gov Recipients:
April.Thorpe@nrc.gov (Thorpe, April)
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