ML20236S193
| ML20236S193 | |
| Person / Time | |
|---|---|
| Issue date: | 07/21/1998 |
| From: | Sullivan E NRC (Affiliation Not Assigned) |
| To: | Terry C NIAGARA MOHAWK POWER CORP. |
| References | |
| TAC-M94959, NUDOCS 9807240187 | |
| Download: ML20236S193 (3) | |
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NUCLEAR REGULATORY COMMISSION
\\*****J' WASHINGTON, D.C. asseMcM July 21,1998 Carl Terry, BWRVIP Chairman Niagara Mohawk Power Company Post Office Box 63 Lycoming, NY 13093
SUBJECT:
BWRVIP REPLY TO THE FINAL SUPPLEMENT TO THE NRC SAFc' TY EVALUATION OF THE BWRVIP-07 REPORT (TAC NO. M94959)
Dear Mr. Terry:
By letter dated February 29,1996, as supplemented by letters dated July 17, May 21, and October 21,1996, and January 8,1997, you submitted the Electric Power Ressarch Institute (EPRI) Report TR-105747, "BWR Vessel and Intemals Project, Guidelines for Reinspection of BWR Core Shrouds (BWRVIP-07)," for NRC staff review and approval.
On September 15,1997, the staff issued its initial safety evaluation (SE) of the BWRVlP-07 report. The staff found the guidance to be generally acceptable but identified several open l
issues. Representatives of the BWRVIP met with the NRC staff on November 5,1997, to discuss these issues and documented their proposed resolution in their submittal of l
_ November 26,1997. The staff has completed its review of this additionalinformation and issued a supplement to its initial SE to close the open issues in a letter dated April 28,1998. The staff found that the revised guidance of the BWRVIP-07 report is acceptable for inspection and assessment of the subject safety-related core shroud when the staff's conclusions are f
l Incorporated. The staff has also concluded that licensee implementation of the guidelines in BWRVIP-07, with modifications to address the staff's conclusions in the April 28,1998, SE will l
provide an acceptable level of quality for examination and assessment of the safety-related components addressed in the BWRVIP-07 document.
By letter dated June 10,1998, you stated that representative of the BWRVIP are contir.uing to discuss possible resolutions to remaining differences between the staff's SE and the revised BWRVIP-07 document. The staff has discussed, in several telephone conferences, these few differences, and the remaining clarification is whether the reinspection intervals (in years) when l-using the staff recommended formula of (n/2 + 1), when the calculated reinspection interval (n) is longer than 2 years, should be rounded up or down. The staff has determined that rounding up, to the next refueling period, is acceptable.
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s C. Terry Please contact C. E. (Gene) Carpenter, Jr., of my staff at (301) 415-2169 if you have any further questions regarding this subject.
Sincerely, H
Edmund J. Sullivan, Acting Chief i
Materials and Chemical Engineering Branch Division of Engineering Office of Nuclear Reactor Regulation Distribution:
PUBLIC File Center,,
EMCB R/F cc: See next page DOCUMENT NAME: G:\\BWRVIP\\BWR07.LTR To receive a copy of this document. Indicate in the box: *E" = Copy w/ enclosure "N" = o copy EMCB:DE E
EMCB:DE E
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/) M RAHermannk EJSullivan f 07d/1998 07/A/1998 07/k/1998 07/1//1998 OFFICIAL RECORD COPY i
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cc:
George Jones, Executive Chairman Dana Covill, Technical Chairman BWRVIP Assessment Task BWRVIP AssessmentTask Pennsylvania Power & Light GPU Nuclear A61 1 Upper Pond Road Two North Ninth Street Parsippany, NJ 07054 Allentown, PA 18101 Joe Hagan, Executive Chairman Carl Larsen, Technical Chairman BWRVIP inspection Task BWRVIP inspection Task Entergy Yankee Atomic l
P. O. Box 756 580 Main Street Waterloo Road Bolton, MA 01740 Port Gibson, MS 39150 l
Paul Bemis, Executive Chairman Vaughn Wagoner, Technical Chairman BWRVIP Integration Task BWRVIP Integration Task Washington Public Power Supply System Carolina Power & Light Company P. O. Box 968 One Hannover Square 9C1 l
l.
North Power Plant Loop P.O. Box 1551 Richland, WA 99352-0968 Raleigh, NC 27612 Lewis Sumner, Executive Chairman John Wilson, Technical Chairman BWRVIP Mitigation Task BWRVIP Mitigation Task j
Southem Nuclear Operating Co.
Clinton Power Station, M/C T-31C l
40 invemess Center Parkway P.O. Box 678 j
Birmingham, AL 35201 Clinton,IL 61727 John Blomgren, Executive Chairman Bruce McLeod, Technical Chairman BWRVIP Repair Task BWRVIP Repair Task l
Commonwealth Edison Co.'
Southem Nuclear Operating Co.
1400 Opus Place, Suite 600 Post Office Box 1295 Downers Grove, IL 60515-5701 40 Invemess Center Parkway.
Birmingham, AL 35201 Bill Campbell, BWRVlP Vice Chairman Warren Bilanin, EPRI BWRVIP Carolina Power & Light integration Manager P. O. Box 1551 Joe Gilman, EPRI BWRVIP i
Raleigh, NC 27612 Mitigation Manager Ken Wolfe, EPRI BWRVIP Robert Carter, EPRI BWRVIP Repair Manager i
Assessment Manager Electric Power Research Institute Greg Selby, EPRI BWRVIP P. O. Box 10412 Inspection Manager 3412 Hillview Ave.
EPRI NDE Center Palo Alto,CA 94303 P. O. Box 217097 1300 W. T. Harris Blvd.
Charlotte, NC 28221
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