ML20205E476
| ML20205E476 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 08/11/1986 |
| From: | Travers W Office of Nuclear Reactor Regulation |
| To: | Harold Denton, Miraglia F Office of Nuclear Reactor Regulation |
| References | |
| CON-NRC-TMI-86-078, CON-NRC-TMI-86-78 NUDOCS 8608180368 | |
| Download: ML20205E476 (3) | |
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&bY August 11, 1985 NRC/THI-86-078 lEORANDUM FOR:
Harold R. Denton, Director Office of Nuclear Reactor Pegulation Frank J. Miraglia, Director Division of PUR Licensing-B FROM:
William D. Travers, Director THI-2 Cleanup Project Directorate
SUBJECT:
NRC_THI-2 CLEAhUP PROJECT DIRECTORATE WEEKLY STATUS REPORT F0lrAUGUST 4 - 10, 1986 1.
_DEFUELIfiG The licensee has completed disassembling the core bore drilling rig.
Bulk detueling operations will begin this week after transferring the canisters containing the core stratification sanples to the "A" Fuel Pool. Defueling operations will be conducted 6 days a week,18 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br /> a day.
Due to recent growth of microorganisms in the reactor coolant, which reduces visibility, the licensee is planning an addition of hydrogen peroxide to improve visibility.
2.
PLANT STATUS The reactor remains in long term cold shutdown, vented to the atmosphere. Core cooling is by natural heat loss to ambient building atmosphere. The average incore thermocouple reading is 79 F.
The airborne radioactivity on the defueling platform is about 2.7 E-7 uC1/cc Tritium and 3.5 E-11 uC1/cc particulates, predominately Cesium-137 and Strontium-90. The platfom is counted above the modified internals indexing fixture which is mounted over the reactor vessel. These provide about 15 feet of water over the core region and 6 feet over the carcusel holding the defueling canisters.
3..
WASTE MANAGEMEHT The Submerged Dcmineralizer System (SDS) and EPICOR II remained in tecporary :;hutdown this week.
Total volume processed through SDS to date is 4,084,856 gallons, and j
the total volume processed EPICOR II to date is 3,055,238 gallons.
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