ML20027C478
| ML20027C478 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 10/04/1982 |
| From: | Barrett L Office of Nuclear Reactor Regulation |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| CON-NRC-TMI-82-061, CON-NRC-TMI-82-61 NUDOCS 8210150651 | |
| Download: ML20027C478 (6) | |
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TMI SITE r/f CENTRAL FILE NRC PDR LOCAL PDR Site Operations October 4,1982 File HRC/TMI-82-061 lie 110RANDUll FOR:
Harold R. Denton, Director Office of Nucler.r Reactor Regulation Bernard J. Snyder, Program Director TMI Program Office FR0ft:
Lake H. Barrett, Deputy Program Director THI Program Office
SUBJECT:
NRC THI PROGRN10FFICE WEEKLY STATUS REPORT Enclosed is the status report for the period of September 26 - October 2, 1982.
Hajor items included in this report are:
Liquid Effluents EPA and HRC Environmental Data Radioactive Haterial and Radwaste Shipments Submerged Demineralizer System Status EPICOR II Reactor Building Entries EPICOR II Prefilter Shipment Status Public llectings
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Lake H. Barrett j
Deputy Program Director TitI Program Office
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Enclosure:
As stated
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Harold R. Denton October 4.1982 Bernard J. Snyder j
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NRC TMI PROGRAM 0FFICE WEEKLY STATUS REPORT September 26, 1982 - October 2, 1982 Plant Status Core Cooling Mode: Heat transfer from the reactor coolant system (RCS) to reactor building ambient.
Available Core Cooling Modes: Mini Decay Heat Removal (MDHR) system.
RCS Pressure Control Mode: RCS is vented to the reactor building.
Major Parameters (as of 0500, September 24,1982)(approximatevalues)
Average Incore Thermocouples*:
115 F Maximum Incore Thermocouple *:
133*F RCS Loop Temperatures:
A B
Hot Leg **
9S'F 93*F Cold Leg (1) 77*F 78 F (2) 79 F 79*F The reactor coolant system is vented to the reactor building.
Pressure:
Reactor Building:
Temperature:
72 F Pressure:
-0.35 psig Airborne Radionuclide Concentrations:
3 5.0 E-6 uti/cc H (sample taken 9/29/82) 3.4 E-10 uCi/cc particulates (sample taken 10/1/82) 85 Kr concentrations are below the lower limit of detection (LLD):
f 6.2 E-6 uCi/cc 1.
Effluent and Environmental (Radiological) Information Liquid effluents from the TMI site released to the Susquehanna River after processing, were made within the regulatory limits and in accordance with NRC requirements and City of Lancaster Agreement.
i 24, 1982, through September 30, 1982, the During the period September effluents contained no detectable radioactivity at the discharge point although individual effluent sources which originated within Unit 2 contained small amounts of radioactivity.
Calculations indicate that l
less than 0.00002 (two hundred thousandths) of a curie of tritium were i
discharged.
- Uncertainties exist as to the exact location and accuracy of these readings.
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- The primary water level is below the hot leg temperature sensors.
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Environmental Protection Agency (EPA) Environmental Data j
,l Results from EPA monitoring of the environment around the TMI site were as follows:
Location August 27 - September 10, 1982 3
(pCi/m)
Goldsboro 26 Observation Center 30 Middletown 26 26 Yorkhaven The EPA Middletown Office has not received the environmental Kr-85 for the samples which were taken subsequent to September 10, 1982, from the EPA's Counting Laboratory at Las Vegas, Nevada.
These results will be included in a subsequent report.
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 September 23, 1982, through September 30, 1982.
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 results for the onsite continuous air sampler:
1-131 Cs-137 Sample Period (uCi/cc)
(uCi/cc)
HP-338 September 22 - 29, 1982
<6.4 E-14
<6.4 E-14 4.
Licensee Radioactive Material and Radwaste Shipments On September 27, 1982, two Unit 1 solidified evaporator bottoms were shipped to U. S. Ecology (Hanford Burial Site), Richland, Washington.
On '
tember 29,1982, two Unit 1 solidified evaporator bottoms were sb'-
s' to U. S. Ecology, Richland, Washington.
cember 30, 1982, two Unit 1 solidified evaporator bottoms were ed to U. S. Ecology, Richland, Washington.
9er 1, 1982, 66 drums of Unit 1 and Unit 2 contaminated were shipped to the Interstate Uniform Laundry, New ton, Pennsylvania.
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On October 1,1982, one container of five Unit I liquid samples (250 9
milliliter samples) was shipped to Nuclear Water and Waste Tr:hnology, San Jose, California.
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Major Activities 1.
Submerged Demineralizer System (SDS).
The SDS is continuing the processing of Batch No. 36 (30,500 gallons of reactor building sump water). The processing is expected to be completed by October 4,1982.
The EPICOR II system began processing SDS effluent (Batch No.
2.
EPICOR II_.
- 36) on September 30, 1982, and will continue the processing during the week of October 3, 1982.
Reactor Building Entries. Reactor Building entries were conducted on 3.
Monday, Wednesday, and Friday, September 27, 29, and October 1,1982.
Decontamination of the reactor building dome and the polar crane were the predominant tasks conducted during the entries.
Gas samples were taken from the pressurizer and reactor coolant system hot-leg high points to determine whether hydrogen gas concentrations wer2 t.ccumulating in primary system gas pockets.
The sample analysis indicated the following:
Hot Leg A Hot Leg B Pressurizer Hydrogen (%)
0.7 1.1
<0.1 Oxygen (%)
9.4 8.9 10.2 Nitrogen (%)
89.6 88.9 89.0 This analysis indicated that hydrogen gas concentrations are safe and below the combustible limits.
Three reactor building entries are scheduled next week.
Continued decontamination of the polar crane will be the predominant activity t
l during the entries.
4.
EPICOR II Prefilter Shipment Status.
EPICOR 11 prefilter shipments are scheduled to resume October 5, 1982.
The licensee has tentatively scheduled eleven more shipments during 1982.
Shipping cask availability had restricted prefilter shipments to two (PF-1 and PF-3) through September, 1982.
GPU has now acquired the use of two type 8 casks (HH-200 and CNS 8-120) in addition to their own SN-1 cask.
Currently three EPICOR II prefilters (PF-2, PF-6 and PF-7) have been sampled, inerted with nitrogen gas, and stored on-site at the solid waste The hydrogen gas generation rates on these storage facility (SWSF).
three prefilters is sufficiently low and indicates an acceptable storage
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and shipment period in excess of two months.
The dose rate profile measurements on cask SN-1, loaded with prefilter PF-6, indicates that a minimum of two low-curie ( 200 curies) prefilter liners can be shipped in the SN-1 and meet the D0T/NRC dose rate requirements in this cask.
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Past Meetings 1.
On Tuesday, September 28, 1982, Lake H. Barrett participated in a public panel discussion sponsored by the Hershey League of Women Voters regarding TMI Unit 2 cleanup issues.
2.
On Wednesday, September 29, 1982, Lake H. Barrett met with the Concerned Mothers of Middletown to discuss TMI Unit i restart and Unit 2 cleanup efforts.
They expressnd their opinion that Unit 1 should not be restarted prior to completion of Unit 2 cleanup.
Cuture eting 1.
C October 12, 1982, Lake H. Barrett will meet with the Concerned Mothers of Middletown to discuss TMI-related issues.
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