ML20206U766
| ML20206U766 | |
| Person / Time | |
|---|---|
| Site: | Vallecitos Nuclear Center |
| Issue date: | 12/31/1998 |
| From: | Murray B, Danni Smith GENERAL ELECTRIC CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9902180148 | |
| Download: ML20206U766 (6) | |
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GENuclearEnergy GeneralElectric Company Valleatos Ns ' lear Center E 705 Valie:utos Road. Sunol. CA 94586 February 1,1999 I T.S. Nuclear Regulatory Commission
~6 ashington, D.C. 20555 Attention: Document Control Desk
Reference:
License R-33, Docket 50-73 Gentlemen:
Enclosed are three signed copies of Annual Report No. 39 for the General Electric Nuclear Test Reactor.
Sincerely, TL.,_, k B. M. Murray Senior Licensing Engineer (925) 862-4455
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Enclosures
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GENuclearEnergy Vallecitos Nuclear Center Sunol, Califamia l
NUCLEAR TESTREACTOR ANNUAL REPORTNO. 39 LICENSER-33 DOCKET 50-73 l
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l GENERAL ELECTRIC NUCLEAR TEST REACTOR ANNUAL REPORT NO. 39
- 1. INTRODUCTION This report summarizes the operation, changes, tests, experiments, and major maintenance at the Nuclear Test Reactor (NTR) which were authorized pursuant to License R-33 and 10CFR50, Section 50.59, for the period January 1,1998, through December 31,1998.
II. GENERAL A.
The reactor was operated at or above critical for 512.37 hours4.282407e-4 days <br />0.0103 hours <br />6.117725e-5 weeks <br />1.40785e-5 months <br />; 236 startups were made. Total plant operation equaled 1.990 mwd in 1908.
B.
The average radiation exposure to facility personnel was 1.32 Rem.
C.
There were no reactor scrams and no unscheduled manual shutdowns.
D.
There were no occurrences during 1998 that required notification of the NRC.
E.
There was one NRC inspection. Three violations of NRC requirements were issued.
Ill. ORGANIZATION There were no changes to the organization or personnel in the organization during this report period.
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NTR Annual Report No. 39
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IV. FACILITY CHANGES, TESTS, EXPERIMENTS AND PROCEDURE CHANGES APPROVED BY THE FACILITY MANAGER L
A.
Facility Chansteg Pursuant to 10CFR50.59(a), there were no facility changes in 1998 requiring Facility Manager approval.
B.
Infit i
Pursuant to 10CFR50.59(a), there were no special tests performed during 1998 requiring Facility Manager approve.l.
C.
Experiments Pursuant to 10CFR50.59(a), there were no new experiments in 1998 requinng Facility Manager approval.
D.
fragedures Pursuant to 10CFR50.59(a), there were no procedure changes during 1998 requiring Facility Manager approval.
V. MAJOR PRE 5/ENTIVE OR CORRECTIVE MAINTENANCE There were no major preventive or corrective maintenance activities performed in 1998.
VI. UNSCHEDULED SHUTDOWNS During 1998 there were no reactor scrams or unscheduled shutdowns.
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NTR Annual Report No. 39 Vll. RADIATION LEVELS AND SAMPLE RESULTS AT ON-AND OFF-SITE MONITORING STATIONS l
The data below are from sample and dosimeter results accumulated during 1998. Except for the NTR stack data, these data are for the entire VNC site and include the effects of operations other than the NTR.
A.
NTR Stack Total airborne releases (stack emissions) for 1998 are as follows.
Alpha Particulate, <0.08 Ci (predominantly radon-thoron daughter products)
Beta-Gamma Particulate, < 1.3 pCi lodine-131,23 pCi Noble Cases,182.5 Ci i
Noble gas activities recorded from the NTR stack integrate both background readings and the actual releases. The background readings may account for as much as 50%
i of the indicated release.
B.
Air Monitors (Yearly average of all meteorological stations.)
Four environmental air monitoring stations are positioned approximately 90 degrees apart around the operating facilities of the site. Each station is equipped with a membrane filter which is changed weekly and analyzed for gross alpha and gross beta-gamma.
Alpha Concentration:
Maximum, 2.4E-15 (predominantly radon-thoron daughter products)
Average,1.4E-15 Ci/cc Beta Concentration:
Maximum, 4.3E-14 pCi/cc Avenge, 2.2E-14 pCi/cc C.
Gamma Radiation The yearly dose results for the year 1998 as determined from evaluation of site perimeter TLD environmental monitoring dosimeters showed acceptable levels.
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i NTR Annual Report No. 39 D.
Vegetation No alpha, beta or gamma activity attributable to activities at the NTR facility was found on or in vegetation in the vicinity of the site.
E.
Water There was no release of radioactivity in water or to the ground water greater than those limits specified in 10CFR20, Appendix B, Table 2, Column 2.
F.
Off-Site Samples taken off the site indicate normal background for the area.
Vill. RADIATION EXPOSURE The highest annual dose to NTR Operations personnel was 1.695 Rem, and the lowest was 1.105 Rem. The average dose was 1.32 Rem per person.
IX. CONCLUSIONS The overall operating experience of the Nuclear Test Reactor reflects another year of safe and efficient operations. There w tre no reportable events.
GENERAL ELECTRIC COMPANY Vallecitos and Morris Operations l
D. R. Smith, Manager Nuclear Test Reactor 2/U99 4
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