ML20246L404
| ML20246L404 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 07/20/1989 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20246L401 | List: |
| References | |
| NUDOCS 8909060322 | |
| Download: ML20246L404 (2) | |
Text
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SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION SUPPORTING AMENDMENT NO. 69 TO FACILITY OPERATING LICENSE N0. NPF-11 AND AMENDMENT NO. 51 TO FACILITY OPERATING LICENSE NO. NPF-18 CDP 940NWEALTH EDISON COMPANY LASALil COUNTY STATION UNITS 1 AND 2 DOCKET N05. 50-373 AND 50-374
1.0 INTRODUCTION
By, letter dated January 30,1989 (W. E. Morgan, CECO, to T. E. Murley', USNRC)
Connonwealth Edison Company (the licensee) proposed Technical Specification
' changes to the Maximum Average Planar Linear Heat Generation Rate (MAPLHGR) limit curves for three resident General Electric fuel types in LaSalle County D
Station Units 1 and 2.
The curves are being redrawn to reflect higher average planar exposure limits which are expected to be reached during the third
? reload cycle for each unit.
2.0 EVALUATION The fuel assembly types designated in the request are 8CRB176 and 8CRB219 from the initial' core loading and BP8CRB299L loaded as new assemblies in Cycle 2.
i' L The' proposeo MAPLHGR limit curves for the three fuel types are to identify extensions to.the. average planar exposure range from the presently approved 30,000 MWD /STU to 44,500 MWD /STU for fuel type BP8CRB299L and from 30,000 MWD /STU to 37,000 MWD /STU for fuel types BCRB176 and 8CRB219. The extensions
, are necessary to allow. continued operation in the present cycle since the nodal. exposures for each LaSalle unit are expected to exceed the limits of the existing curves. No changes to the three curves are proposed for exposure
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limits below 30,000 MWD /STU since there was no new reload cycle associated with this request.
Since the nuclear design for each LaSalle unit was performed for the prior cycles using the approved methodology described in GESTAR II (NEDE-24011-P-A-8,
" General Electric Standard Application for Reactor Fuel," May 1986), only the exposure limit extension needs further review and approval. The staff confirmed that the identified fuel types have been analyzed for extended use in this application with approved methods and meet the approved limits of GESTAR II (Amendment 13, Revision 6 to NEDE-24011-P-A, dated March 26,1986) including consideration of the requested exposure range extension, and the proposal-is therefore acceptable.
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3.0 ENVIRONMENTAL CONSIDERATION
This amendment involves a change to a requirement with respect to the installation or use of a facility component located within the restricted area as defined in 10 CFR Part 20. The staff has determined that the amendment involves no significant increase in the amounts, and no significant change in the types, of any effluents that may be released offsite and that there is no significant increase in individual or cumulative occupational radiation
- exposure. The Commission has previously issued a proposed finding that this amendment involves no significant hazards consideration and there has been no public comment on such finding. Accordingly, this amendment meets the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(9).
Pursuant to 10 CFR 51.22(b), no environmental impact statement or environmental assessment need be prepared in connection with the issuance of this amendment.
4.0 CONCLUSION
The staff has concluded, based on the considerations discussed above, that:
(1) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, (2) such
- activities will be conducted in compliance with the Commission's regulations, and the issuance of this amendnent will not be inimicci to the common defense and security or to the health and safety of the public.
Principal Contributors:
M. McCoy, NRR/SRXB Paul C. Shemanski, NRR/DRSP Dated:
July 20, 1989
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