ML20080P889
| ML20080P889 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 03/03/1995 |
| From: | Burski R ENTERGY OPERATIONS, INC. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20080P892 | List: |
| References | |
| W3F1-95-0027, W3F1-95-27, NUDOCS 9503080171 | |
| Download: ML20080P889 (2) | |
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I Kihona, LA 70066 Tel 504 739 6774 R. F. Burski amu Mdar 6Stefy I
Waterford 3 W3F1-95-0027 A4.05 PR 4
March 3, 1995 U.S. Nuclear Regulatory Commission ATTN:
Document Control Desk Washington, D.C. 20555
Subject:
Waterford 3 SES i
Docket No. 50-382 License No. NPF-38 Request Additional Information Regarding Technical Specification Change Request NPF-38-148 Gentlemen:
By letter dated December 14, 1993, Waterford 3 proposed Technical Specification (TS) Change Request NPF-38-148.
The proposed change included revised Reactor Coolant System (RCS) pressure-temperature (PT) curves. The present PT curves, TS Figures 3.4-2 and 3.4-3, have a valid life span of 0 to 8 Effective Full Power Years (EFPY). The revised curves proposed PT j
limits for 0 to 20 EFPY. The revised curves were based on ABB Combustion Engineering (CE) Report C-MECH-ER-021, Rev.00, that was included with the initial request, and B&W Report BAW-2177 (Analysis of Capsule W-97),
submitted for NRC review in November of 1992.
By letter dated January 11, 1995, the NRC staff requested additional information concerning the methods for predicting fluence and the uncertainty associated with the measurements and calculations used in the j
fluence prediction. The neutron fluence results from BAW-2177 were used by ABB CE to develop RCS PT limits for 20 EFPY. The apparent concern is the projection of the fluence value and associated PT limits to 20 EFPY, based on the analysis results of one surveillance capsule.
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9503090171 950303 PDR ADOCK 05000382
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7 jw Request for Additional'Information Regarding Technical Specification Change Request NPF-38-148 W3F1-95-0027 Page 2 March 3. 1995
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To resolve this issue, Waterford 3 requests that the proposed 20 EFPY on TS Figures 3.4-2 and 3.4-3 be modified to 15 EFPY. The proposed PT curves (excluding the title blocks) are otherwise unchanged by this request. The modified curves are still based on a 0-20 EFPY peak surface fluence of 2.29x10" n/cm.
By reducing the proposed curve extension from 20 to 15 2
EFPY, adequate conservatism.is incorporated to address the staff's concerns. This proposed change has no affect on the no significant hazards determination provided in the initial request. The modified PT curves, TS Figures 3.4-2 and 3.4-3, are attached for review.
As discussed with NRC staff, the current PT curves (0-8 EFPY) are expected to expire on May 11, 1995 (assuming continued operation at 100% power).
Therefore, Waterford 3 respectfully requests an expeditious review.
If you have any questions associated with this request, please contact Mr. 0.P. Pipkins at (504) 739-6707.
Very truly yours, i'
R.F. Burski Director Nuclear Safety RFB/0PP/ssf cc:
L.J. Callan, NRC Region IV C.P. Patel, NRC-NRR R.B. McGehee N.S. Reynolds NRC Resident Inspectors Office Administrator Radiation Protection Division (State of Louisiana)
American Nuclear Insurers