ML20004B871
| ML20004B871 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 05/18/1981 |
| From: | Barrett L Office of Nuclear Reactor Regulation |
| To: | Harold Denton, Synder B Office of Nuclear Reactor Regulation |
| References | |
| CON-NRC-TMI-81-029, CON-NRC-TMI-81-29 NUDOCS 8106010226 | |
| Download: ML20004B871 (5) | |
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TMI SITE r/f MTRALFILE l
May 18, 1901 Site Operations file i
NRC/T14I-81-029 I
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liEMORANDLI4 FOR:
Harold R. Denton, Director.
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Office of Huclear Reactor Regulation 9
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N Bernard J. Snyder, Program Director, y
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TMI Program Office
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1 FROM:
Lake H. Barrett, Acting Deputy Progras Director, TMI Program Offica l
SU6 JECT:
NRC TMI'PROGRM OFFICE WEEN.Y STATUS REPORT Enclosed is the status report for the period of May 10 - 16, 1981.
Lake H. Barrett
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TMI Progras Office
Enclosure:
As stated
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OGC Office Directors Ccaudssioner's Technical Assistants NRR Division Directors NRR A/D's Regional Directors IE Division Directors X005 X0MA l
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l fiRC TMI PROGRN4 0FFICE WEEKLY STATUS REP]RT Week of May 10 - 16, 1981
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Plant Status Heat transfer from the reactor coolant system (RCS)
Core Cooling Mode:
loops to Reactor Building ambient.
Available Core Cooling Modes: Long-term cooling "B" (ance through steam generator-B); decay heat removal systems.
f RCS Pressure Cont.roi " ode: Standby Pressure Control (SPC) System.
Backup Pressure Control Modes: Mini Decay Heat Removal (MDHR) System.
Decay Heat Removal (DHR) Systen.
Major Parameters (as of 0500, May 15,1981) (approximate values)
Average Incore Thermocouples: llS*F Maximum Incore Thermocouple: 142 F RCS Loop Temperatures:
A B
Hot Leg 112 F 114 F Cold Leg (1) 65*F 66*F (2) 66*F 65*F RCS Pressure: 100 psig Reactor Building: Temperature: 66 F Water level: Elevation 290.8-ft. (8.3 ft. from floor) via oenetration 401 manometer 0.29 osig Pressure:
Concentration: Kr-85 concentration was Less than the Lower Limit Detectable (sample taken 5/14/81)
Effluent and Environmental (Radiological) Information Liquid effluents from the TMI site released to the Susquehanna River 1.
l after processing, were made within the regulatory limits and in accordance with NRC requirements and City of Lancaster Aareement dated February 27, 1980.
During the period May 8,1981, through May 14, 1981, the effluents l
~ contained no detectable radioactivity at the discharge point and individual effluent sources which originated within Unit 2 contained no detectable radioactivity.
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Environmental Protection Agency (EPA) Environmental Data.
Resul ts from EPA monitoring of the environment around the TMI site were as follows:
The EPA measured Kr-85 concentrations (pCi/m ) at several 3
environmental monitoring stations and reported the following resul ts:
Location May 1 - May 8, 1981 (pCi/m3)
Goldsboro 23 Observation Center 28 Middletown-30
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Yorkhaven 22 All of the above levels of Kr-85 are considered to be back-ground levels.
No radiation above normally occurring background levels was -
detected in any of the samples collected from.the EPA's air and gama rate networks during the period from May 7,1981, through May 14, 1981.
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NRC Environmental Data. Results from NRC monitoring of the environ-ment around the TMI site were as follows:
The following are the NRC air sample analytical results for the onsite continuous air sample::
I-131 Cs-137 Samole Period (uCi/cc)
(uCi/cc)
May 6,1981 - May 13,1981
<8.9 E-14 <8.9 E-14 HP-267 4.
Licensee Radioactive Material and Radwaste Shipments On Monday, May 11,1981, a 40 ml Unit 2 ructor coolant sample was sent tn 8abcock and Wilcox (B&W) Lynchburg, Virginia.
On Tuesday, May 12,1981, one 4' x 4' EPICOR-II dewatered resin liner (liner DF-8) from Unit 2 was shipped to d.S.
Ecology, Richland, Washington.
On Tuesday, May 12,1981, one 4' x 4' EPICOR-II dewatered resin liner (liner DF-14) from Unit 2 was shipped to U.S.
Ecology, Richland, Washington.
On Thursday, May 14, 1981, nine liners (50 cu. ft. each in steel overpacks) containing solidified evaporator bottoms from Unit 1 were shipped to the Chem-Nuclear site, Barnwell, South. Carolina.
On Friday, May 15, 1981, 81 drums containing Unit 2 contaminated laundry were shipped to Tri-State Industrial Laundries, Utica, New York.
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3 Major Activities 1.
Reactor Building Entry.
The tenth entry into the Unit 2 Reactor Building (RB) was completed on Thursday, May 14, 1981.
Three of the four tasks scheduled for the entry were completed successfully.
The attempt to attach safety lines to the polar crane was aborted when the men assigned to the task were unable to climb onto the crane b;cause of limited physical accessibility.
The procedure will be revised for this job and this task will be rescheduled for a future entry.
The task to retrieve eight samples from the RB sump was completed in less time than anticipated and the resultant total body exposures to the participating personnel averaged in the 200 mr range rather than the predicted 800 mr range.
Two sets of samples were retrieved from four different elevations in the eight foot deep sump water.
The bottoninost samples, taken approximately two inches above the RB floor, were noticably darker than the other six samples. The samples will be analyzed off site.
Two men completed a beta and gamma survey of the control rod drive structure in preparation for future work on the reactor head.
The survey included swipe samples and area radiation surveys.
A decontamination experiment was performed on a 2,000 square foot area of the RB. High and low pressure hot water sprays were used.
The sprays had a' very noticable visual cleaning effect on the RB floor. The decontamination effectiveness of the sprays is being evaluated.
During the decontamination experiment, the RB purge flow was monitored for an increase in effluent radiation levels.
No increase was detected.
The next RB entry is tentatively scheduled for May 28, 1981.
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2.
Submerged Demineralizer System (SDS).
Preparation of the Safety Evaluation Report (SER) by the TMI Program Office is in progress although some necessary information has not yet been received.
On April 30,1981, the licensee submitted a ' revised schedule for providing the needed information.
Fuel pool "B" has been completely filled with EPICOR-II processed water and functional tests are scheduled to be completed during the next reporting period (week of May 17, 1981)..The licensee is scheduled to perform operator training following completion of the functional tests.
The operator training will not involve pro-cessing of contaminated water.
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Meetino Hald On Wednesday, May 13, 1981, Lake Barrett participated in a public panel discussion in Lancaster sponsored by the Susquehanna Valley Alliance to discuss Til.
Bernard Snyder, Oliver Lynch, Frank Congel and Lynn O'Reilly of the NRC, Office of Nuclear Reactor Regulation, also attended, pro /iding specialized support. Panel members included Mr. Ken Miller, Hershey Medical Center; Dr.. William Kirk, EPA; Mr. Lake Barrett, NRC; Dr. George Tokuhata, PA Department of Health; Dr. John Randall, Lancaster General Hospital; and Dr'. Willis Bixby, Department of Energy.
The major areas of concern were the ultimate disposition of TMI cleanup wastes, general health effects, infant mortality, and psydblogical stress resulting from the Unit 2 accident and possible restart of Unit 1.
Future Meeting On Thursday, June 4,1981, the Advisory Panel for the.De;untamination of TMI Unit 2 will meet from 7:00 p.m. to 10:00 p.m. in the City Council Chambers, Xendig C. Bare Public Safety Building, 208 North Duke Street, Lancaster.
At this meeting, which is open for public observance, the Panel will discuss Radiation Wo ker Exposure and Health Effects.
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