ML20044C219
| ML20044C219 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 03/16/1993 |
| From: | Rood H Office of Nuclear Reactor Regulation |
| To: | Horn G NEBRASKA PUBLIC POWER DISTRICT |
| References | |
| TAC-M75939, NUDOCS 9303190238 | |
| Download: ML20044C219 (4) | |
Text
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i NUCLEAR REGULATORY COMMISSION k
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V March 16, 1993 Docket No. 50-298 Mr. Guy R. Horn Nuclear Power Group Manager Nebraska Public Power District Post Office Box 499 Columbus, Nebraska 68602-0499 c
Dear Mr. Horn:
SUBJECT:
REQUEST FOR MODIFICATION OR WITHDRAWAL OF PROPOSED TECHNICAL SPECIFICATION CHANGE ~RELATED TO SAFETY VALVE AND SAFETY RELIEF VALVE.
SETPOINT TOLERANCE'(TAC NO. M75939)
By letter dated January 26, 1990, the Nebraska Public Power District (NPPD) submitted to the NRC staff a request that the Cooper Nuclear Station (CNS)-
Technical Specifications (TS) be revised to increase the setpoint tolerance -
for both the safety valves and safety relief valves from i I percent'to..
t 3 percent.
Your request also included the use'of. an upper limit pressure of..
1277 psig for the safety valves and an upper limit pressure'of 1210 psig for:
the safety. relief valves.
On July 9,1990, the Boiling Water Reactor Owners' Group (BWROG) submitted for NRC staff review the General Electric Company's~ (GE)? generic, proprietary, topical report, NEDC-31753P, "BWROG In-Service Pressure Relief Technical Specification Revision Licensing Topical Report.' The staff review of your. TS change request was deferred until the staff review'of the generic topical report was completed.
The NRC staff recently completed its review of-NEDC-31753P and issued a-generic safety evaluation (SE). The_ generic SE was transmitted to the BWROG-by a letter dated March 8, 1993, from Ashok C.- Thadani, USNRC,.to.Cynthia L..
Tully, Chairperson, BWROG. The staff's SE concluded that a-change of valve:
setpoint tolerance from i I percent to i 3 percent'is acceptable. : However,-
the SE also concluded that the philosophy of an upper' limit-is.not acceptable.
Therefore, this aspect of your proposed TS change is not acceptable..
The NRC letter of March 8,1993 requested that the BWROG publish' accepted versions of the topical report within 3 months. of receipt of the letter.
Because your TS change request will: require considerable rework to meet-the.
staff criteria specified in' the generic SE, we' request 'that you review in detail the staff's SE as well as the accepted version of NEDC-31753,'when-issued. Then, if you choose to pursue safety and safety relief valve:setpoint tolerance r.hanges, we request that you submit a' revised request superseding; your TS change request of January 26, 1990. To facilitate an expeditious n
review, the revised request should include TS changes that conform to the criteria specified in the.SE with the necessary supporting information, also [
as.specified in the SE.
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\\1 Mr. Guy R.: Horn -
- ' Alternatively, if-you choose not to pursue safety and safety relief valve setpoint tolerance changes based on your review of the generic' SE and the -
1 accepted version of NEDC-31753, we request that you withdraw your TS change request of January 26, 1990.
This completes the staff review-of. this issue and closes TAC'No. M75939.
If you have any questions regarding this issue, please contact me.
Sincerely, j
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Harry od, Senior Project Manager
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Project Directorate-IV-1 Division of Reactor Projects - III/IV/V:
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Office of Nuclear Reactor Regulation j
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cc:
Mr. G. D. Watson, General Counsel Nebraska Public Power District
-P. O. Box 499 Columbus, Nebraska 68602-0499 Cooper Nuclear Station ATTN: Mr. John M. Meacham Site Manager P. O. Box 98 Brownville, Nebraska 68321 e
Randolph Wood, Director Nebraska Department of Environmental Control P. O. Box 98922 Lincoln, Nebraska 68509-8922 Mr. Richard Hoody, Chairman Nemaha County Board of Commissioners Nemaha County Courthouse 1824 N Street Auburn, Nebraska 68305 Senior Resident Inspector U.S. Nuclear Regulatory Commission P. O. Box 218 Brownville, Nebraska 68321 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011 Mr. Harold Borchert, Director Division of Radiological Health Nebraska Department of Health 301 Centennial Mall, South P. O. Box 95007 Lincoln, Nebraska 68509-5007
t Mr. Guy R. Horn 1 Alternatively,;if you choose not to pursue safety and safety relief valve-setpoint tolerance changes based on your review of the generic SE and the' accepted version of NEDC-31753, we request that you withdraw your TS change-request of January 26, 1990.
This completes the staff review of this issue'and closes TAC No. M75939.
If you have any questions regarding this issue, please contact me.
Sincerely, ORIGINAL SIGNED BY:
Harry Rood, Senior Project Manager Project Directorate IV Division of Reactor Projects - III/IV/V Office of Nuclear Reactor Regulation cc: See next page DISTRIBUTION:
" Docket 2 File' NRC & Local PDRs PD4-1 Reading P. Noonan H. Rood G. Hubbard M. Virgilio J. Roe ACRS (10)(P315)
OGC (15B18)
PD4-1 Plant File M. Razzaque A. B. Beach, RIV J. Gagliardo, RIV E. Collins, RIV R. Kopriva, RIV 0FFICE LJ:{D,4,-1 PM:Pg4-1 D(A):Pfffl NAME (PNNha[
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'0FFICIAL RECORD _ COPY. Document Name: C0075939.LTR 9