ML070740121

Triga Mark I Reactor - Annual Report for Cy 2006

ML070740121
Person / Time
Site:	General Atomics
Issue date:	03/01/2007
From:	General Atomics
To:	Office of Nuclear Reactor Regulation
References
Download: ML070740121 (7)

Text

TRIGA Mark I Reactor ANNUAL REPORT CALENDAR YEAR 2006 prepared to satisfy the requirements of U.S. Nuclear Regulatory Commission Facility License R-38 Docket No. 50-89 MARCH 2007 TRIGA REACTORS FACILITY TRIGA Mark I Reactor ANNUAL REPORT Calendar Year 2006 TABLE OF CONTENTS Page Intro d uctio n ........... ............... ........ ........................1 1. Sum m ary of Facility Activities

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2 1.1 Decom m issioning Activities

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2 1.2 Facility Status ......................................

....... 2 1.3 Decommissioning Schedule ..................................

2 1.4 Radioactive Material Shipments

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2 2. M aintenance O perations

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3 3. 10CFR50.59 Facility Modifications and Special Experiments

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3 4. Radioactive Effluents Released to the Environs ........................

3 5. Environm ental Surveys ...........................................

3 6. Summary of Radiation Exposures and Radiological Surveys ..............

4 6.1 General Atomics Staff Whole Body Exposures

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4 6.2 Non-General Atomics Staff Whole Body Exposures

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4 6.3 Routine Wipe Surveys of Mark I Reactor Facility ..................

4 6.4 Routine Radiation Measurements of Mark I Reactor Facility .........

5 Introduction This report documents operation of the General Atomics (GA) TRIGA Mark I Non-Power Reactor for the period January 1, 2006 through December 31, 2006. The TRIGA Mark I Reactor, possessed by GA at its San Diego, California facilities, was not operated for the duration of the reporting period. The Reactor is possessed by GA under License No. R-38 (Amendment No. 36) granted by the U.S. Nuclear Regulatory Commission (Docket No. 50-89).This report is being prepared and submitted to satisfy the requirements of Section 7.6(d)of the R-38 Technical Specifications, as amended. This report is presented in six parts, consistent with the information required by the applicable Technical Specifications.

TRIGA is a registered trademark of General Atomics 1

1. Summary of Facility Activities 1.1 Decommissioning Activities During Calendar Year (CY) 2006, the TRIGA Mark I has been in Decommissioning status. There were no decommissioning activities performed during this period.1.2 Facility Status o All TRIGA Mark I fuel remains situated in the Fuel Storage Canal portion of the Mark F Reactor pool, in Rm. 21/107.o Decommissioning of the contaminated soil around the pit of the Mark I reactor has been deferred until shipment of the fuel from the Mark F reactor pit for safety reasons.o The Senior Reactor Operators (SROs) have all completed the requirements necessary to keep their licenses current. The required biennial operator requalification written examination was successfully taken by the three (3) operators on June 27, 2006 o New security system hardware (for Fire, Criticality and Intrusion) was installed during this reporting period.0 All GA personnel having access to Safeguards Information were fingerprinted with copies sent to the USNRC and had criminal history records checked.o The Criticality and Radiation Safeguards Committee (CRSC)completed its annual inspection on December 12,2006. No problems were noted.1.3 Decommissioning Schedule All major task items in the Decommissioning Plan schedule have been completed except for shipment of the fuel from the Mark F storage canal and the decommissioning of the soil around the pit.1.4 Radioactive Material Shipments No radioactive material was shipped during this reporting period.2

2. Maintenance Operations All maintenance activities, performed during the reporting period, generally fall into three categories: (i) routine preventive maintenance, (ii) routine calibration activities, and (iii) activities associated with replacement of older components and systems due to age. All maintenance activities are recorded in the TRIGA Reactors Decommissioning Logbook. Facility Maintenance Checklists are completed on a regular schedule, at weekly, quarterly, and annual frequencies.

All maintenance operations performed on the TRIGA Mark I were minor in nature. There were no major maintenance operations performed during the reporting period.3. 10CFR50.59 Facility Modifications and Special Experiments There were no applications for Facility Modification under the provisions of 10CFR50.59, submitted for the R-38 facility during the CY2006 reporting period.There were no Special Experiments submitted for the R-38 facility during CY2006.4. Radioactive Effluents Released to the Environs During CY2006, 0.00 millicuries of Argon-41 were discharged from the TRIGA Mark I Reactor facility stack to the atmosphere.

5. Environmental Surveys During CY2006, the Environmental Monitoring Program (EMP) for the TRIGA Reactors Facility remained essentially unchanged from the prior year. The applicable EMP includes the following monitoring equipment and actions: o Five (5) emergency air samplers, situated on the Facility roof and around the TRIGA Reactor Facility perimeter.

o Ten (10) environmental air samplers, situated adjacent to, and near the GA site perimeter, in accordance with the GA Material License (SNM-696).

o Daily liquid effluent monitoring from the GA Main Sewerage Outfall Pump House, for gross alpha and beta radioactivity concentrations.

o Annual soil and water sampling at ten (10) stations on the GA site, including stations around the perimeter of the TRIGA Reactor Facility.o External radiation monitoring of the TRIGA Reactor Facility using five (5)passive area dosimeters, as well as radiation meter surveys conducted periodically.

3 o Since there were no decommissioning activities or fuel stored in the Mark I Facility the use of the Continuous Air Monitor (CAM) was discontinued.

It will be placed in use any time in the future when there are decommissioning activities.

6. Summary of Radiation Exposures and Radiological Surveys The following data summarizes measured personnel occupational radiation exposures and radiological surveys of the TRIGA Reactors Facility during CY2006.Personnel who are listed on the TRIGA Reactors Facility Work Authorization (WA#3316) and specific Radiological Work Permits (RWPs) were monitored for radiation exposure; these individuals included 18 General Atomics Staff and 14 Non-General Atomics Staff employees.

6.1 General Atomics Staff Whole Body Exposures 1 Number of individuals monitored:

High Exposure: Low Exposure: Average Exposure: 18 0.000 Rem 0.000 Rem 0.000 Rem 6.2 Non-General Atomics Staff Whole Body Exposures 2 Number of individuals monitored:

High Exposure: Low Exposure: Average Exposure: 14 0.000 Rem 0.000 Rem 0.000 Rem 6.3 Routine Wipe Surveys of Mark I Reactor Facility High Wipe: Low Wipe: Average Wipe: 9.9 dpm/100 cm 2< 1.00 dpm/100 cm 2< 1.00 dpm/100 cm 2 Includes reactor facility staff and facility support staff authorized to work at the TRIGA Reactor Facility.

These personnel may also work routinely at other GA radiation facilities; therefore, this dose represents cumulative exposure at all GA facilities.

Includes non-GA sub-contractor personnel who were granted periodic access to the TRIGA Reactor Facility for the performance of work. These personnel may also work routinely at other GA radiation facilities; therefore, this dose represents cumulative exposure at all GA facilities 4

6.4 Routine Radiation Measurements of Mark I Reactor Facility High Measurement:

Low Measurement:

Average Level: 4.5< 0.2<0.2 mRem/hr @ 1 foot mRem/hr @ 1 foot mRem/hr @ 1 foot 5