ML17321A836
| ML17321A836 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 08/14/1985 |
| From: | Varga S Office of Nuclear Reactor Regulation |
| To: | Dolan J AMERICAN ELECTRIC POWER SERVICE CORP., INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG |
| Shared Package | |
| ML17321A837 | List: |
| References | |
| NUDOCS 8508220108 | |
| Download: ML17321A836 (3) | |
Text
Docket No. 50-315 August 14, 1985 Mr. John Dolan, Vice President Indiana and Michigan Electric Company c/o American Electric Power Service Corporation 1 Riverside Plaza
- Columbus, Ohio 43216
Dear Mr. Dolan:
M.RtfH4 oc e s
ORB¹1 Rdg NRC PDR HThompson DWigginton EShomaker, OELD CParrish EJordan BGrimes JPartlow Gray File GLainas By [[letter::05000316/LER-1985-007, :on 841228,NDE Revealed Cracks in Seven 2-inch Rockwell-Edward Globe Valves,Similar to IE Info Notice 84-48 & Suppl 1 Description.Valves Isolate Reactor Coolant Loop Resistance Temp Detector Manifolds|letter dated March 20, 1985]], the Indiana and Michigan Electric Company provided an evaluation of the Exxon LOCA issue for the Donald C.
Cook Nuclear Plant, Unit No.
1.
Supplemental information was received by letters dated March 29, April 3, and June 27, 1985.
We'ave completed our review as documented in the enclosed Safety Evaluation and have concluded that the Unit 1 analysis did not contain the analysis input error, the analyses did not use the unacceptable heat transfer augmentation factors, and the revised LOCA analysis using a
corrected version of TOODEE 2 code satisfies 10 CFR 50.46.
We have also determined that the K(z) curve for the Exxon fuel has not been verified using an ECCS evaluation model wholly in conformance with Appendix K but we are reasonably assured that D.
C.
Cook Unit 1 complies with the performance criteria oi'0 CFR 50.46.
It is our understanding that IMEC will provide an ECCS analysis in October 1985 using an approved ECCS evaluation model which either verifies the current K(z) curve for the Exxon fuel or determines a new K(z) to be applied to the Exxon fuel.
We require that this analysis be submitted no later than 6 months from receipt of this letter.
If there are any questions in this regard, please let me know.
The reporting and/or recordkeeping requirements of this letter affect fewer than ten respondents; therefore, OMB clearance is not requi~ed under P.L.96-511.
/s/JDNeighbors for SVarga
Enclosure:
As stated Steven A. Varga, Chief Operating Reactors Branch ¹1 Division of Licensing cc w/enclosure:
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Mr. John Dolan Indiana and Michigan Electric Company Donald C.
Cook Nuclear Plant CC:
Mr. M. P. Alexich Vice President Nuclear Operations American Electric Power Service Corporation 1 Riverside Plaza
- Columbus, Ohio 43215 Attorney General Department of Attorney General 525 West Ottawa Street Lansing, Michigan 48913 Township Supervisor Lake Township Hall Post Office Box 818 Bridgman, Michigan 49106 W. G. Smith, Jr., Plant Manager Donald C.
Cook Nuclear Plant Post Office Box 458 Bridgman, Michigan 49106 U.S. Nuclear Regulatory Commission Resident Inspectors Office 7700 Red Arrow Highway Stevensville, Michigan 49127 Gerald Charnoff, Esquire Shaw, Pittman, Potts and Trowbridge 1800 M Street, N.W.
Washington, DC 20036 Mayor, City of Bridgeman Post Office Box 366 Bridgman, Michigan 49106 Special Assistant to the Governor Room 1 - State Capitol Lansing, Michigan 48909 Nuclear Facilities and Environmental Monitoring Section Office Division of Radiological Health Department of Public Health 3500 N. Logan Street Post Office Box 30035 Lansing, Michigan 48909 The Honorable John E. Grotberg United States House of Representatives Washington, DC 20515 Regional Administrator, Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137 J. Feinstein American Electric Power Service Corporation 1 Riverside Plaza
- Columbus, Ohio 43216