ML20117M897
| ML20117M897 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 09/10/1996 |
| From: | Graham P NEBRASKA PUBLIC POWER DISTRICT |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NLS960010, NUDOCS 9609180198 | |
| Download: ML20117M897 (3) | |
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COOPER NUCLEAR STATION P.O. BOX 96. BROWNVILLE. NEBRASKA 88321 Nebraska Public Power District
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m NLS960010 September 10,1996 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555-0001
Subject:
Revision of Commitments; Control Room Emergency Filter System Cooper Nuclear Station, NRC Docket 50-298, DPR-46
References:
1)
Letter to U.S. NRC Document Control Desk from J. H. Mueller dated April 28,1995," Revision to Control Room Emergency Filter System 31-Day Test Commitment and the Operability Limit Commitment" 2)
Letter to G. R. Horn (NPPD) from J. R. Hall (USNRC) dated July 5,1995,
" Revised Commitments for Control Room Emergency Filter System Testing - Cooper Nuclear Station (TAC No. M92302) 3)
Letter to U.S. NRC Document Control Desk from J. H. Mueller dated December 16,1995, " Conversion to the Improved Standard Technical Specifications" Gentlemen:
The Nebraska Public Power District (District) is revising two commitments discussed m References 1 and 2 regarding the testing of the Control Room Emergency Filter System (CREFS) at the Cooper Nuclear Station (CNS). Specifically, the District is revising the frequency for performance of the CREFS positive pressurization test. The District is also revising its plans regarding the submittal of a proposed Technical Specification change specific to the CREFS. Additional information supporting these commitment changes is provided below.
In Reference 1, the District previously committed to a positive pressurization test of the CREFS on a quarterly basis. The District, instead, is revising this commitment to perform these tests at the frequency required by the apolicable CNS Technical Specification Surveillance Requirement (SR 4.12.A.l.i). This commitrr ent is being revised based on the collection of test data which
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l indicates that the CREFS is carable of routinely obtaining a positive pressurization value of approximately 0.3" Wg. Thi<. improved capability is a result of system modifications performed in early 1995 (Reference 1) p 9609180198 960910 PDR ADOCK 05000298 P
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U.S. Nuclear Regulatory Commission September 10,1996 Page 2 of 2 Also, in Reference 1, the District had committed to use additional test data and other operating experience to support the positive pressurization value to be contained in the concluding Technical Specification change. Inferred in this commitment, was an additional commitment that the District would submit a concluding Technical Specification change as soon as the additional test data / operating experience would support the final value. The District, instead, plans to include the changes associated with the CREFS Technical Specifications with those changes associated with development of the CNS Improved Technical Specifications (ITS). The District committed to the ITS conversion in Reference 3. Addressing the CREFS Technical Specification changes in advance ofITS would not be an efricient expenditure of NRC or District resources, nor provide a significant increase in safety.
With the revision of the above two commitments, in conjunction with all of the other corrective actions taken, the District regards all of the remaining Control Room envelope issues as closed.
Please contact me as soon as possible if your office should disagree with the above commitment changes, or if you should need additional information.
Sincerely, P. D. Graham Site Manager
/dnm ec:
Regional Administrator USNRC - Region IV Senior Project Manager USNRC - NRR Project Directorate IV-1 Senior Resident Inspector USNRC - Cooper Nuclear Station NPG Disti., ion I
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LIST OF NRC COMMITMENTS l ATTACHMENT 3 l
'orrespondence No: NLS960010
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C The following table identifies those actions committed to by the District in this document. Any other actions discussed in the submittal represent intended or planned actions by the District. They are described to the NRC for the NRC's information 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.
COMMITTED DATE COMMITMENT OR OUTAGE
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The District will perform the CREFS positive ec e
n pressurization tests per the requirements of CNS Technical Technical Specifications Specif3 cations Upon submittal of the The District plans to include the CREFS positive pressurization value with those changes associated with applicable ITS section development of the CNS Improved Tec:inical Specifications (ITS).
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PROCEDURE NUMBER 0.42 l
REVISION NUMBER 1.1 l
PAGE 9 OF 11 l
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