ML20215L766

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Forwards Annual Update of Defueling Canister Technical Evaluation Rept,Per NRC .Update Revises Quantity of Recombiner Catalyst Required to Be Exposed in Dewatered Canisters & Min Time Required for Canister Dewatered to 25%
ML20215L766
Person / Time
Site: Three Mile Island Constellation icon.png
Issue date: 05/07/1987
From: Standerfer F
GENERAL PUBLIC UTILITIES CORP.
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
Shared Package
ML20215L768 List:
References
0133P, 133P, 4410-87-L-0052, 4410-87-L-52, NUDOCS 8705120366
Download: ML20215L766 (2)


Text

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GPU Nuclear Corporation Nuclear  :::, oms:r8o Middletown, Pennsylvania 17057 0191 717 944 7621 TELEX 84 2386 Writer's Direct Dial Number:

(717) 948-8461 4410-87-L-0052 Document ID 0133P May 7, 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 Annual Update of the Defueling Canister Technical Evaluation Report Pursuant to NRC Letter dated February 4, 1982, attached for your information is the annual update to the Technical Evaluation Report for the TMI-2 Defueling Canisters. This update incorporates the use of " deep-bed" filters, the use of coagulants and diatomaceous earth, and the capability to draw deep-suction with the Defueling Water Cleanup System. These issues have been addressed previously in the following correspondence:

o tEC Letter NRC/TMI-87-027 dated March 27, 1987 o GPU Nuclear letter 4410-87-L-0024 dated February 20, 1987 o GPU Nuclear letter 4410-87-L-0021 dated February 20, 1987 o NRC Letter NRC/TMI-87-02 dated January 15, 1987 o GPU Nuclear letter 4410-86-L-0216 dated December 31, 1986 o NRC Letter NRC/TMI-86-119 dated December 22, 1986 o GPU Nuclear letter 4410-86-L-0213 dated December 15, 1986 o CPU Nulcear letter 4410-86-L-0173 dated September 26, 1986 o NRC Letter NRC/TMI-86-066 dated July 9,1986 o GPU Nuclear letter 4410-86-L-0104 dated June 30, 1986 8705120366 870507 PDR ADOCK 05000320 P PDR gou {

GPU Nuclear Corporation is a subsidiary of the General Public Utilities Corporation gh

I Document Control Desk May 7, 1987 4410-87-L-0052 Additionally, this update revises the quantity of recombiner catalyst. required to be exposed in dewatered canisters.and the minimum time required for a canister dewatered to 25% void volume to achieve its design pressure.

Sincerely, f

/

-t

. R. Standerfer Director, TMI-2 FRS/RDW/eml Attachment cc: Regional Administrator - Region 1, Mr. W. T. Russell Director - TMI-2 Cleanup Project Directorate, Dr. W. D. Travers

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