ML20003E067
| ML20003E067 | |
| Person / Time | |
|---|---|
| Site: | Vallecitos File:GEH Hitachi icon.png |
| Issue date: | 02/27/1981 |
| From: | Gilliand D GENERAL ELECTRIC CO. |
| To: | |
| Shared Package | |
| ML20003E062 | List: |
| References | |
| NUDOCS 8104020184 | |
| Download: ML20003E067 (5) | |
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GENERAL ELECTRIC TEST REACTOR ANNUAL REPORT NO 22 License TR-1 Docket 50-70 l
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1 GENERAL ELECTRIC TEST REACTOR ANNUAL REPORT NO. 22 I.
INTRODUCTION This annual report, covering the period January 1,1980 to Decemcer 31, 1980 for the General Electric Test Reactor (GETR), is submitted in fulfillment of the requirements of Item 3.D(4) of License TR-1 and 10CFR50.59(b).
II. OPERATING
SUMMARY
On October 24, 1977, the General Electric Test Reactor was ordered to remain shut down, following a routine outage, pending further order from the Noclear Reculatory Commission. The order was based on an interpretation of the geology o! the Livermore Valley as shown on the U. S. Geological Survey (USGS) open file report number 77-689 and a preliminary evaluation of evidence of faulting Tht reactor was shut down on in a trench dug at the Vallecitos Nuclear Center.
October 27, 1977 and has remained in this condition through Cecember 31, 1940.
III. STATISTICS 1.
Containment Building Evacuations and Isolations None 2.
Personnel (as of December 31, 1990) 4 Operation Supervisors 4
Licensed Operations Supervisors O
Shift Engineers 0
Licensed Shift Engineers 1
Shift Specialists' 1
Licensed Shift Specialists 3
Reactor Operators 2
Licensed Reactor Operators 8
Licensed Senior Reactor Operators (includes Supervisors)
IV.
REACTOR AND SYSTEMS COMPLIANCE TESTS Performance tests were satisfactorily completed on the an+i-siphon valves, the vacuum relief system, the experiment exhaust system and the emergency diesel generator.
V.
MALFUNCTIONS OF CONTROL AND SAFETY SYSTEMS There were no malfunctions of control or safety systems during 1980.
VI.
CHANGES AUTHORIZED BY MANAGER, REACTOR IRRADIATIONS Pursuant to 10CFR50.59(a), the Manager, Reactor Irradiations, authorized changas during the report period..These changes were authorized in accordance with
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APED-5000- A, Paragraph 3.3.1.
The changes completed in 1980 are listed belcw.
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1.
Drain Line Valve Additions Description of Change:
Two valves were added to a drain line from sinks in the main office building to the retention tanks for radioactive contaminated water.
These valves will facilitate the addition of a holdup tank to the system at some future date.
Safety Analysis:
Pipe fitting and valve materials are compatible with the system. The system was leak tested after installation.
2.
Tank Farm Piping Description of Chance:
Unused sections of pipe were removed from the deminerali:ed water repro-cessing area.
Safety Analysis:
Removal of the pipes eliminated unused pipe and a cross connection of the demineralized water and clean drain systems. This piping had not been used for over 10 years and was not expected to be used in the future.
Pipe caps, plugs and flanges added to the system were of compatible material and equivalent quality as the existing pipe.
3.
Model 700 Shipping Centainer lescription of Change:
The lower drain line penetration at the cask top face was revised to provide a stronger termination to resist impact damage. The shutoff valve was changed to a ball valve.
Safety Analysis:
The termination was strengthened.
Loading and unloading time improved by the valve substitution, and impact damage vulnerability reduced.
4.
Experiment Exhaust System Check Valve Description of Change:
A check valve was added to the Experiment Exhaust System water level meter to prevent potential migration of radioactive gas to the nitrogen gas system.-
Safety Analysis:
The new valve is' compatible with system material and was leak tested after installation.
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5.
Tank Farm Vent Line Maintenance Description of Change:
A vent line from underground retention tanks was temporarily cut to permit leak testing.
The line was rewelded after the test.
Cafety Analysis The vent line was potentially contaminated. Cutting debris was captured and disposed of in contaminated waste containers.
6.
Environmental Monitoring Program Description of Change:
Some soil, vegetation and stream bottom samples were eliminated and the frequency of sampling at some other locations was reduced.
Safety Analysis:
The reduced _ site activities no longer warrant the previous extensive sampling program. The eliminated samples and the frequency of sampling were not required by license or by regulation.
VII.
CHANGE IN ORGANIZATION No changes were made in the structure of the GETR organization.
VIII. SIGNIFICANT CHANGES IN PROCEDURES During 1980 the Standard Operating Procedures (SOFs) were periodically revised and updated. No new SOPS were written and 28 changes were made to the SOPS.
In addition, 2 changes were made to the Maintenance Procedures.
IX. - RADIATION LEVELS AND SAMPLE RESULTS AT ON-AND OFF-SITE MONITORING STATIONS The data below are from sample and dosimeter results accumulated during 1980.
These data are for the entire VNC site and include the effects of operations other than the GETR. The type and Llocations of the samples are described in
- APED-5000- A.
-1.
Air Monitors (yearly average of all meteorlogical stations)
Alpha Concentration Maximum.
o.1 x 10-15 pC1/cc Average 2.73 x 10-15 uCi/cc.
Beta Concentration-Maximum
. l.2' x 10-12 pCi/cc Average 7.11 x 10-14 pCi/cc 3-P_.___
j-2.
Gamma Radiation.
The integrated yearly dose results for the year 1980 as determined from evaluation site perimeter environmental monitoring dosimeters showed no dosimeter readings in excess of normal dosimeter i
beckground (i.e., the background shown on duplicate TLDs stored in non-radiation areas at the VNC and at the facilities of the film dosimeter processor).
3.
Vegetation. No alpha, beta or gamma activity attributable to the operation of the GETR facility was found on or in vegetation in the vicinity of the site.
4 Water. There was no release of radioactivity in water or to the ground water greater than those limits specified in 10CFR20, Appendix B, Table II, Column 2.
- 5. ' Of f-Si te.
Samples taken off the si'e indicate normal background for t
the area.
4 X.
CONCLUSION In our opinion, the over-all experience of the GETR reflects a year of safe shutdown conditions. We hope for resumption of operation in 1981.
GENERAL ELECTRIC COMPANY Irradiation Processing Operation By O. L. Gt1111and, Hanager Reactor Irradiations i
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