ML20248C688
| ML20248C688 | |
| Person / Time | |
|---|---|
| Site: | 07000734 |
| Issue date: | 09/13/1989 |
| From: | Asmussen K GENERAL ATOMICS (FORMERLY GA TECHNOLOGIES, INC./GENER |
| To: | Fish R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| Shared Package | |
| ML20248C689 | List: |
| References | |
| 696-1447, NUDOCS 8910030545 | |
| Download: ML20248C688 (43) | |
Text
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September 13, 1989 696-1447 l
Mr. R.
F.
Fish l
U.S. Nuclear Regulatory Commission Region V 1450 Maria Lane, Suite 210 Walnut Creek, CA 94596
Subject:
Docket No. 70-734:
SNM-696; Request for Confirmatory Survey (Selected Laboratories in Building 2 - Group 4)
Reference:
Asmussen, Keith E.,
letter No. 696-1443 to R.
F. Fish, " Request for Confirmatory Survey (Experimental Building - Stage 2)," dated August 31, 1989
Dear Mr. Fish:
General Atomics (GA) recently submitted a report documenting the results of its final radiation and contamination surveys of the " Stage 2" area of GA's Building 9 and requested a confirmatory survey of this area (see referenced letter).
In the referenced letter, it was mentioned that GA also had a group of laboratories and associated offices for which a report documenting their final surveys was nearly complete, and that this report would be submitted to you the week of September 11, 1989.
That report is enclosed.
It addresses a group of 11 laboratories (3 with mezzanines) in GA's Building 2 (also known as the L Building).
This group of laboratories 2
totals about 3,749 ft and is referred to as Group 4 (confirmatory surveys were previously conducted on three other groups of laboratories in Building 2).
The results of the final radiation and contamination surveys documented in the enclosed report demonstrate L
compliance with the State.of California's and U.S.
Nuclear Regulatory Commission's guidelines for release of facilities and equipment to unrestricted use.
The primary radionuclides previously used in these laboratories were depleted, natural and enriched uranium, thorium, tritium and other fission products.
Most of the laboratories
/
required no decontamination beyond the removal /
decontamination of sources and contaminated equipment.
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8910o30545 890913 I\\
PDR ADOCK 07000734 C
PNU 10955 JOHN JAY HOPKINS DRIVE. SAN DIEGO, CA 921211194 PO. BOX 85608. SAN DIEGO CA 92138-5608 (619) 455-30F
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- o z The only exceptions were five small areas / spots (~1 ft )
which were found to be contaminated.
One was found in laboratory 556 where the contaminant was uranium-235, and the other four were found in the combined laboratories 359/361 where the contaminant was thorium.
This report is being provided for'your use in planning for a confirmatory survey and in support of the subsequent release of the subject facilities to unrestricted use.
We are submitting a copy of the enclosed report to the State of California Department of Health Services and requesting that they coordinate with~your office any surveys they may wish to conduct.
Again, please note that GA has displaced personnel and equipment and has. tenants waiting to occupy laboratory space pending the completion of the requested confirmatory surveys.
It is therefore of great importance to GA that the surveys be conducted as soon as possible.
If you should have any questions regarding our request or the enclosed report, or if there is anything GA can do to help expedite the scheduling of the confirmatory surveys, please contact me at (619) 455-2823.
Very truly yours, Keith E. Asmussen, Manager Licensing, Safety and Nuclear Compliance Enclosure (3 copies)
Ms. Mary Horn, NRC Headquarters cc:
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