ML20205T587
| ML20205T587 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/02/1987 |
| From: | Standerfer F GENERAL PUBLIC UTILITIES CORP. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20205T592 | List: |
| References | |
| 0135P, 135P, 4410-87-L-0037, 4410-87-L-37, NUDOCS 8704070333 | |
| Download: ML20205T587 (2) | |
Text
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GPU Nuclear Corporation NggIg{
Post Office Box 480 Route 441 South Middletown, Pennsylvania 17057-0191 717 944 7621 TELEX 84 2386 Writer's Direct Dial Nurnber:
(717) 948-8461 4410-87-L-0037 Document 1D 0135P April 2, 1987 US Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555
Dear Sirs:
Three Mile Island Nuclear Station, Unit 2 (TMI-2)
Operating License No. DPR-73 Docket No. 50-320 Canister Handling and Preparation for Shipment Safety Evaluation Report, Revision 4 Attached for your review and approval is Revision 4 to the Safety Evaluation Report (SER) for Canister Handling and Preparation for Shipment (CHAPS).
The following sections have been revised:
o Section 2.3.2, " Verification of Catalyst Function" o
Section 2.3.3, " Canister Dewatering" o
Section 11.0,
" References" NRC Letter NRC/TMI-87-003 granted approval to reduce the dewatering criteria to 25 percent of the canister void volume for fuel canisters and to the level required to ensure exposure of at least 25 grams of recombiner catalyst in the filter and knockout canisters. This approval was based on various tests of the recombiner catalyst which demonstrated a minimum factor of safety of six (6) for 100 grams of approved catalyst which corre,sponds to safety factor of 1.5 for 25 grams of exposed catalyst. The attached revision similarly proposes a method for achieving a minimum catalyst safety factor of 1.5.
However the proposed method differs in that it allows fluctuation in the following variables: catalyst safety factor equating to 100 grams of catalyst, minimum quantity of exposed catalyst, and decay heat load of the canister based on the canister payload weight.
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DR ADOCK 05000320 PDR GPU Nuclear Corporation is a tsuosidlary of the General Public Utilities Corporation Re a '4c*
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Document Control Desk April 2, 1987 4410-87-L-0037 The proposed GPU Nuclear revision has been judged to be consistent, from a safety and technological standpoint, with the basis for the current NRC-approved canister dewatering criteria (i.e., void volume) in that it assures a minimum catalyst safety factor of 1.5 will be maintained.
Per the requirements of 10 CFR 170, an application fee of $150.00 is enclosed.
Sincerely, F. R. Standerfer Director, TMI-2 FRS/RDW/eml Attachment Enclosed: GPU Nuclear Corp. Check No. 003928 cc: Regional Administrator - Region 1, Dr. T. E. Murley Director - TMI-2 Cleanup Project Directorate, Dr. W. D. Travers b.
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