ML19343B944
| ML19343B944 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 02/02/1981 |
| From: | Barrett L Office of Nuclear Reactor Regulation |
| To: | Harold Denton, Snyder B Office of Nuclear Reactor Regulation |
| References | |
| CON-NRC-TMI-81-008, CON-NRC-TMI-81-8 NUDOCS 8102180337 | |
| Download: ML19343B944 (23) | |
Text
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,e February 2, 1981 tiRC/TMI-81-008 MEMORANDUM FOR:
Harcld R. Denton, Director, Office of tJuclear Reactor Regulation Bernard J. Snyder, Program Director, TMI Program Office FROM:
Lake H. Barrett, Acting Deputy Program Director, TMI Program Office
SUBJECT:
fiRC TMI PROGRAM OFFICE WEEKLY STATUS REPORT, Enclosed is the status report for the period of January 25-31, 1981.
r N0 Lake H. Barrett Acting Deputy Program Director TMI Program Office
Enclosure:
As Stated cc w/ enc 1:
EDO OGC Office Directors Cccuissioner's Technical Assistants NRR Division Directors NRR A/D's Reoional Directors
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NRC TM1 PROGRAM OFFICE WEEKLY STATUS REPORT WeGk af January 25-31, 1981 Plant Status Heat transfer from the reactor coolant system (RCS)
J 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.
RCS Pressure Control Mode: Standby pressure control (SPC) system.
One decay heat removal pump to supply Backup Pressure Control Mode:
pressure in conjuction with variable recirculation back to the borated water storage tank (BWST).
Major Parameters (as of 0500, January 30,1981) (approximate values)
Average Incore Thermocouples:
124*F Maximum Incore Thermocouple:
156*F RCS Loop Termperatures:
A B
Hot Leg 120*F 123*F Cold Leg (1) 68*F 68"F (2) 68*F 67'F RCS Pressure:
106 psig Reactor Building: Temperature:
64*F Water level:
Elevation 290.5 ft. (8.0 ft. from ficor) via penetration 401 manometer) 0.4psig(Hgise)
Pressure:
Concentration:
1.8 x 10- uCi/cc (Kr-85) (sample taken 1/26/81)
Effluent and Environmental (Radiolooical) Information Liquid effluents from TMI site released to the Susquehanna River l
1.
after processing, were made within the regulatory limits and in accordance with NRC requirements and City of Lancaster Agreement dated February 27, 1980.
During the period January 23, 1981, to January 29, 1981, the effluents 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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- 2., EPA Environm7ntal Data.
Results from EPA monitoring of the environment around the TMI site were as follows:
3 The EPA measured Krypton-85 (Kr-85) concentrations (pCi/m ) at several environmental monitoring stations and reported the following results:
Location January 16'- January 23. 1981 (pCi/m3) 25 Bainbridge 19 Goldsboro Observation Center 21 29 Middletown All of the above levels of Kr-85 are considered to be background levels.
No radiation above normally occurring background levels was detected in any of the samples collected from the EPA's' air and gamma rate networks during the period from January 21, 1981, through January 29, 1981.
3.
NRC Environmental Data.
Results from NRC monitoring of the environment around the TMI site were as follows:
The following are the NRC air sample analytical result; for the onsite continuous air sampler:
I-131 Cs-137 (uCi/cc) (uCi/cc)_
Samole Period HP-252 January 21, 1981-January 28, 1981
<9.0 E-14 <9.0 E-14 No reactor related radioactivity was detec
.d.
Environmental ~ TLD measurements for the period November 26, 1980, to January 9,1981, indicate gamma radiation to be at the natural background levels.
Fifty-four TLD's registered doses ranging from 0.18 mR/ day to 0.31 mR/ day. Average dose was 0.23 mR/ day.
These dose rates are consistent with natural background radiation in the TMI area.
4.
Licensee Radioactive Material and Radwaste Shipments. The following snipments were made:
On Monday, January 26,1981, a 40 ml Unit 2 reactor coolant sample was sent to Babcock and Wilcox (B&W), Lynchburg, Virginia.
3 On Tuesday, January 27, 1981, a shipment containing 26 drums of compacted LSA waste and 2 boxes of non-compacted LSA waste was shipped from Unit 1 to Chem Nuclear Systems, Inc., Barnwell, South Carolina.
On Thursday, January 29,1981, a Unit 2 shipment of 79 drums of laundry was sent to Tri-State Industrial Laundries, Utica, New York.
Major Activities 1.
Reactor Building Entry and Purge.
The sixth entry into the Unit 2 reactor building (RB) is scheduled to commence on Tuesday morning, February 3,1981. Activities inside the RB will continue for approximately seven hours on Tuesday and for four hours on Thursday, February 5, 1981. A total of thirty persons are scheduled to participate in the entry during the two days. The planned activities include the installation of a closed circuit television (CC1'V) system, decontamination experiments, and additional testing of the source range neu*.ron detectors.
Eight CCTV cameras will be installed inside the RB.
CCTV monitors will be installed in the control room, entry comand center, and on the turbine deck. The eight cameras include zoom and pan capability. The CCTV system will be used to monitor future activities in the RB.
Decontamination experiments, which commenced during the fifth entry, will be continued. Stripable coatings applied to the RS floor in December will be removed and their decontamination effectiveness will be assessed.
Additionally, decontamination experiments with concentrated flush solutions will be continued. A decontamination foam will.be applied to the vertical surface to test its effectiveness in removing surface ' contamination.
Testino from outside the RB has identified that the triaxial cable between the NI-2 neutron source range preamplifier and its RB penetration is defective.
During the sixth entry a time domain reflectometer will be brought into the RB to test the two NI-2 neutron sensors and the associated cables.
Prior to the entry, a RB purge will be conducted to reduce the j
concentrations of Kr-85 gas.
Based on RB air sample taken on January 26, 1981, there are approximately 10 curies of Kr-85 dispersed in the RB air.
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6 portions Initial testing of compi..
See is Submerged Demineralizer System (SDSl.of the 505 is in p The 1 2.
The :
ram conducting a program to further evaluate SDS perfo which is tentatively scheduled for March 1981, ecort to The licensee submitteo Contami_nated Building Exoansion Joint.
r.e h t the source c-tne onsite IMI Program Office wnicn concluded t a bL
.ing and 3.
contamination is the seal injection cubicle in the auxiliaryThe
.nis not the reactor building.
report.
- rt vere No new ground water an Ground Water Monitoring Status. A sketch showing the Ic
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.lso.
receiveo ouring tne past week.
ground water monitoring wells is attached to this re
'df wells ars Graphs showing variations in tritium activity in all tr included.
- and sen. to :
of._
Well water samples are taken weekly by the licen.
der 26. 198.. ar>
Sample results through r, Sample res. : 'or laboratory for analysis.
the latest available and are included in this repc radioactive c sh-Well #2 were given priority after trace quantities
_va..;
e Radioactive cesium sample results fra Well #2 were detected.
1 for an through January 14, 1981.
the Radiological and Environmental Sciences Laboratory in c.en rt_ rived.
The results of the analysis have n independent analysis.
I L.
5 Meetings Attended On Thursday, January 28, 1981 Lake Barrett met with the Mayor of Lancaster to dis:uss the ctatus of TMI-2. Their discussion centered around TMI's history of liquid effluents and future TM1 Advisory Panel meetings.
Future Meetings The NRC's Advisory Panel for the Decontamination of Three Mile Island 1.
Unit 2, will hold meetings in Harrisburg, on February 4, 11 and 19, 1981.
The public is invited to observe all three of these meetings, which will be held at the Forum of the Education Building on Commonwealth and Walnut Streets, Harrisburg. Each of these meetings are scheduled to begin at 7:30 p.m. and end at 10:30 p.m.
On Friday, February 6, 1981, Lake Barrett and Willis Bixby (DGE) will 2.
meet with Mayor Reid of Middletown to discuss the decontamination efforts of TMI-2.
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CA..% SCA74 RESULTS 1980 to December 17, 1980 results received f or the November 12, l
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reporting Period were negative with the exceptions listed be owThe other Test 1981.
W-2 results are listed through January 14, have not been rece; i.
Table 1 l
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January 7, 1980 81.41,.
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