ML19322D865
| ML19322D865 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 02/28/1980 |
| From: | Herbein J Metropolitan Edison Co |
| To: | Jay Collins NRC - TMI-2 Operations/Support Task Force |
| References | |
| FOIA-80-301 TLL-044, TLL-44, NUDOCS 8003050511 | |
| Download: ML19322D865 (3) | |
Text
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Metropolitan Edison Company X;
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717 rocacci 948-8000 Wnter's Direct Dial Numcer Februa ry 28, 1980 TLL 044 TMI Support Atta:
J. T. Collins, Deputy Director U. S. Nuclear Regulatory Commission c/o Three Mile Island Nuclear Station Middletown, Pa.
17057
Dear Sir:
Three Mile Island Nuclear. Station, Units I & II (TMI-l & TMI-2)
Operating License Nos. DPR-50 and DPR-73 Docket Nos. 50-289 and 50-320 Station Liquid Waste Storage Capacity In response to Mr. Collins' letter (NRC/TMI 80-11) dated January 21, 1980, we have developed an alte nate proposal with regard to maintaining contingency radwaste storage.
It is proposed that rather than maintaining contingency storage exclusively in TMI-I, that appropriate contingency storage would be maintained at the station. Specifically, 160,000 gallons of shielded storage, the equivalent of two reactor coolant bleed tanks, would be maintained in the stations combined facilities. This is cc.1sistent with the Commission's order of October 18, 1979 and subsequent discussions with your staff. This proposal would provide greater processing flexibility and would limit any interference on the start of construction of the submerged demineralizer caused by radwaste p rocessing,.
Establishment of a 160,000 gallon storage requirement for the station weuld allow TMI-I to use its bleed tanks as a path to transfer processed TMI-II BWST water to the TMI-I BWST. Use of the TMI-I tanks (or a portion of their capacity) will reduce the time required for the transfer from 4-5 months to 3 months or less. Any reduction of the time required for the transfer will result in a similar advance in the schedule for starting construction of the SDS and subsequent containment decontamination. The three processes possible for the transfer of the TMI-II BWST to TMI-I are described on the attachrent to this letter together with the time period required for each option.
If you have any questions regarding this proposal, please contact R. J.
McGoey (717-948-8334) or E. C. Fuhrer (717-948-8012) of my staff.
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Metrcrchtan Ecson Company is a Mer)ce of tne General Puthe Utitres System
Mr. J. T. Collins TIL 044 Sincerely, Signed J. G. Herbein J. G. Hertein Vice President Nuclear Operations JGH:ECF: hah Attachment YAM cc:
R. Vollmer
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TLL 044 PROCESS DESCRIPTIONS AND SCHEDULES 1.
The 360,000 gallons of borated water from the TMI-2 BWST wculd be processed by EPICOR I to meet applicable discharge criteria in prepara-tion for discharge to the river via TMI-I. There would be no need to use the TMI-I bleed tank capacity. The process is expected to take 5 - 6 months because of the process flow rate / discharge flow rate limitations and the shared use of EPICOR I and the TMI-I WECST's.
Time required from the start of,the TMI-2 BWST transfer to th'e start of SDS construction:
a.
Transfer TMI-2 BWST 4 to 5 months b.
Transfer Spent Fuel Pool to TMI-2 BHST with boration 0.5 to 1 month c.
Decon Spent Fuel Pocl 0.25 months Total 4.75 to 6.25 months 2.
The 360,000 gallons of borated water from the TF11-2 BWST would be processed by EPICOR I to remove sad,ium contamination and excess boric acid prior to being transferred to the TMI-I BWST. The transfer from EPICOR I to the BWST requires the use of a portion of a TMI-l bleed tank to be used as a process path.
Time required from the start of the TMI-2 BWST transfer to the start of SDS construction:
a.
Transfer TMI-2 BWST 3 months b.
Transfer Spent Fuel Pool to TMI-2 BWST with boration 0.5 to 1 month c.
Decon Spent Fuel Pool 0.25 months Total 3.75 to 4.25 months 3.
The 360,000 gallons of borated water from the TMI-2 BWST would be processed by the TMI-l radwaste system to remove sodium contamination and excess baron prior to being transferred to the TMI-l BWST. A portion of a TMI-l bleed tank will be required to be used as a test tank to determine if the sodium clean-up was acceptable prior to trans-ferring the water to the TMI-l BWST.
Time required from the start of the TMI-2 BWST transfer to the start of SDS construction:
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a.
Transfer TMI-2 BWST 1 month b.
Transfer Spent Fuel Pool to TMI:1 BWST with boration 0.5 to 1 month c.
Decon Spent Fuel Pool 0.25 month Total 1.75 to 2.25 months wo,
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