ML20024F790

Amend to Annual Rept on Operation of Washington State Univ Triga Reactor, Covering Jul 1989 to June 1990,consisting of Info Re Environ Monitoring Program & Average Quarterly Exposure

ML20024F790
Person / Time
Site:	Washington State University
Issue date:	06/30/1990
From:	WASHINGTON UNIV., ST. LOUIS, MO
To:
Shared Package
ML20024F789	List: ML20024F788 ML20024F790
References
NUDOCS 9012210004
Download: ML20024F790 (3)

Text

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AMENDMENT TO THE ANNUAL REPORT ON THE OPERATION OF THE WASHINGTON STATE UNIVERSITY TRIGA REAGTOR l Facility License R-76 for the Reporting Period of July 1, 1989 to June 30, 1990 l

This amendment to W.S.U. Annual Report contains omitted data that was not available at the time the Annual Report was prepared. The completed sections where data was previously omitted are as follows:

Pare S. Section C. Table VI. Averate Ouarterly Reactor and Exoerimenter Staff Ex p o sure_ ,

June's film badge results were not available from the vendor at the time the Annual Report was prepared. Table VI below now contains the missing film badge results:

TABLE VI Average Quarterly Reactor and Experimenter Staff Exposure (in millirem)

Jul-Aug Sep Oct-Nov-Dec Jan-Feb-Mar Apr-May-Jun 5.0 5.0 2.5 8.0 Egge 6.Section I. Environmental Monitorine Program.

The last quarter's (April-May-June) TLD exposure data was not available from the vendor at the time the Annual Report was prepared. Revised Table VII and Tabic VIII on page 2 includes the data previously omitted.

The values observed indicate there is no significant effect on the environment radiation levels due to reactor operation.

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TABLE VII Environmental Radiation Levels in the Vicinity of the Nuclear Radiation Center l (Exposure in uR/ day)

Jul-Aug-Sep Oct Nov Dec Jan-Feb Mar Apr May Jun Median 136 136 156 172 150 1

For sampling stations located 50 meters or greater from the Nuclear Radiation Center.

Quarterly exposures at readily accessible locations at the reactor facility are listed in Table VIII below. No significant effect on the environmental radiation levels by reactor operation was noted.

TABLE VIII Environmental Radiation Levels Adjacent to the Nuclonr Radiation Center (Exposure in uR/ day)

Location Jul Aug-Sep Oct-Nov-Dec Jan-Feb Mar Apr May-Jun Median S. Bldg. Entrance 162 162 198 204 182 E. Loading Dock 143 143 198 190 169 Pool Rm Vent Stack 114 114 140 146 129 Building W. Roof 138 138 186 190 163 Rad. Storage Shed 214 214 302 292 256 Building N. Side 147 147 186 182 160 Beam Room W. Door 157 157 198 197 177 Building W. Side 157 157 209 204 182 Pool Room W. Roof 286 286 453 511 384 Pool Room E. Roof 205 205 302 292 251 1

For sampling stations located less that 50 meters of the Nuclear Radiation Center.

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3 Technical Specifications ALARA effluent releases in 3.12(2) specify annual radiation exposures at the closest offsite extended occupancy shall not, on an annual basis, exceed the average local offsite background radiation level by more than 20%. For the four quarters of the reporting period, the average background radiation level for sampling points 400 meters or greater from the facility was 205 uR/ day. The average radiation level at the closest extended occupied area 380 meters away was 199 uR/ day, which yields a ratio of -3.2%, indicating no significant exposure level above I natural background.

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