ML19350B089
| ML19350B089 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 03/09/1981 |
| From: | Barrett L Office of Nuclear Reactor Regulation |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8103190536 | |
| Download: ML19350B089 (5) | |
Text
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March 9, 1981 NRC/TMI-81-019 Sf
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- Ir.51 MEMORANDUM FOR:
Harold R. Denton, Director,
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Office of Nuclear Reactor Regulati g
fg Bernard J. Snyder,_ Program Director, TMI Program ffice 0
FROM:
Lake H. Barrett, Acting Deputy Program Director, TMI Program Office
SUBJECT:
-NRC TMI PROGRAM 0FFICE WEEKLY STATUS REPORT Enclosed is the status report for the period of March 1-7, 1981.
bh/n)Barrett Y
d Lake H./
Acting Deputy Program Director TMI Program Office Eiiclosure: ~As stated cc: ED0-OGC Office Directors Commissioner's Technical Assistants l'
NRR Division Directors lc
.NRR A/D's Regional Directors IE Division Directors i
X00S X0MA TMILProgramOfficeStaff.(15)
,g PHS
"' t EPA Projects _Br. ' No. -2 Chief, DPRI, RI DPRI Chief, RI-
-Public Affairs, RI T. Elsasser
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NRC TMI PROGRAM 0FFICE WEEKLY STATUS REPORT Week of March 1-7, 1981 Plant Status Core Cooling Mode: Heat transfer from the reactor coolant system (RCS) loops to reactor building ambient.
Available Core Cooling Modes: Long-term cooling "B" (once through steam generator-B); decay heat removal systems.
RCS Pressure Control Mode: Standby Pressure Control (SPC) System.
Backup Pressure Control Mode: Mini Decay Heat Removal (MDHR) System.
Major Parameters (as of 0500, March 6,1981) (approximate values)
Average Inco-e Thermocouples: 120 F Maximum Incore Thermocouple: 150 F
.RCS Loop Temperatures:
A B
Hot Leg 116 F 119 F Cold Leg (1) 66 F 66 F (2) 66 F 65 F 1
RCS Pressure:
100 psig Reactor Building: ' Temperature:'58 F Water level: Elevation 290.7 ft. (8.2 ft. from floor) via penetration 401 manometer Pressure:
-0.4 psig Concentration: 8.9 x 10-5 uCi/cc (Kr-85)
(sample taken 3/2/81)
Effluent and Environmental' (Radiological) Infc.. nation 1.
~ Liquid effluents from 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 dated February 27,L1980.
i During the period February 27,.1981,.to March 5,1981, the effluents
-contained no detectable radioactivity at the'_ discharge' point for individual effluent sources'which originated within Unit 2.
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'2.
- EPA Environmental Data. Results from EPA monitoring of the environment around the TMI site were as follows:
3
.The EPA' measured Krypton-85 (Kr-85) concentrations (pC1/m ) at senral environmental monitoring stations and reported the 1ollowing results:
Location February 20 - February 27, 1981 3
(pCi/m )
LBainbridge 22 Goldsboro 23 Observation Center 22 Middletown 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 February 25, 1981, through March 5, 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 results for
- the onsite continuous air _. sampler
1-131-Cs-137
. Sample
~ Period (uCi/cc)
(uCi/cc)
.- 8.1 E-14 <8.1 E-14 HP-256 February '18,1981-Feb.ruary 25,1981 HP-257
~ February 25,.1981-March 4, 19.81
<8.3 E-14 <8 3 E-14 4.-
. Licensee Radioactive Material and Radwaste Shipments.- The' following
' shipments were made:.
-- /On Monday, March 2,1981,.a 40 ml Unit 2 reactor coolant -
t
= sample'was sent to Babcock'and WilcoxL(B&W), Lynchburg,-
- On Monday, Marchx2,;1981,.a 15 ml Unit 2 liquid sample from the' Control' Building Expansion Seal ~ Bore Hole 18 was mailed to Science Applications-Incorporated.'(SAI).- Rockville, 1
- Maryland.-
4 L
3 On Tuesday, March 3,1981, twelve air sample filter papers from Unit 2 were mailed to Teledyne Isotopes, Westwood, New Jersey.
/
On Tuesday, March 3,1981, a one liter sample from the Unit 1 "B" Waste Evaporator Condensate Storage Tank (WECST) was sent to Teledyne Isotopes, Westwood, New Jersey.
On Wedensday, March 4, 1981, paint chips from the Unit 2 Reactor Building interior were shipped to SAI, Rockville, Maryland.
-Major Events 1.
Reactor Building Entry. The seventh reactor building entry has been delayed to March 18, 1981. The rescheduling was necessitated by delays in constructing the equipment to sample the sump water and to perform a zwiite resin column test.
2.
Contaminated Building Expansion Joint.
In order to monitor the water level in the cork building expansion joint, the licensee has installed a metal tube in the joint. The tube is located in the portion of the joint that runs north-south in the control building basement, just east of the reactor building perimeter.
(After heavy rain, water has been found in this joint.) The water level will be checked on a regular schedule by inserting a dip-stick into the tube.
The cork and water samples that the licensee took earlier at the expansion joint are being analyzed for radioactive contamination.
3.
Test Boring Program Status. The results of analysis for gamma emitting isotopes from test boring no. 2 have been received for samples taken during February 1981. The results of the analysis are listed below.
Test Boring No. 2 Cs 37 (pCi/1) l Date C.sl34 (pCi/1)
Feb 4 6.2 12.7 Feb-11 134.0 371.0 Feb 18 75.9 189.0 Feb 25 21.0 56.0 y.
- A trace quantity of cobalt 60 was detected in test boring no. 2 on February 11, 1981.
Tne cobalt was not detected in any other samples.
7 The gamma spectroscopy analysis of samples taken in February from test borings in the vicinity of boring no. 2 did not identify any radioisotopes.
4 4.
Neutron Source Range Monitor.
A new preamplifier has been installed in the circuitry leading to the NI-2 neutron source range detector.
Pulses apparently originating from gamma radiation and neutrons in the reactor are being displayed on the NI-2 channel. The licensee engineers are attempting to verify that the detected pulses are originating from the core and once this is ascertained, the licensee will calibrate the channel by adjusting the discriminator circuitry to eliminate the gamma pulses from the display.
15.
Programmatic Environmental Impact Statement. The NRC's final Programmatic Environmental Impact Statement (PEIS) for the decon-
.tamination for TMI Unit 2 will be issued March 9,1981.
It will be
-available at the NRC's Middletown Office at 100 Brown Street. The PEIS will be subject of a Commission Briefing with the staff on the same date.
-Future Meetings On Tuesday, March 10, 1981, Lake Barrett will meet with area mothers to discuss various issues related to the decontamination of TMI Unit 2.
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