ML20198R068
| ML20198R068 | |
| Person / Time | |
|---|---|
| Site: | 07000734 |
| Issue date: | 11/04/1997 |
| From: | NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | |
| Shared Package | |
| ML20198R056 | List: |
| References | |
| NUDOCS 9711130147 | |
| Download: ML20198R068 (7) | |
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fj NUCLEAR REGULATORY COMMISSION WASHINGTON. D.C. 30eE0001
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70 734 LICENSEE:
General Atomics (GA)
San Diego. California
SUBJECT:
SAFETY EVALUATION REPORT. AMENDMENT REQUEST DATED APRIL 30, 1997. RELEASE OF NDN lMPACTED GA FACILITIES AND SURROUNDING AREAS fBCKGROUND General Atomics (GA) has requested the release of "non-impacted" GA facilities and surrounding areas for unrestricted use and removal from license SNM-696 by letter dated April 30, 1997. GA currently holds a Possession Only License and submitted a site decommissioning plan in September 1996. GA is pursuing decontamination and decommissioning (D&D) activities.
DISCUSSION General Atomics is located approximately 22 km (13 miles) north of downtown San Diego. California.
The facility consists of two areas:
the Main site, which included the research and develoment (R&D) labs, waste processing facilities, the TRIGA reactor, and fuel fabrication processing: and the Sorrento Valley site where high temperature, gas-cooled reactor (HTGR) fuel was produced.
GA conducted these operations on-site until September 1995 when it ceased all operations authorized by license SNM 696 and entered a possession only status.
Currently, the only operations taking place at the site are those involved in the decommissioning processes.
GA is requesting toot portions of both the Main site and the Sorrento Valley site be released for unrestricted use. GA states that no radioactive materials were ever used or stored in these "non-impacted" areas.
The portion of the Main site to be released includes Buildings 1. 7. 13, 14, 15. 19, 29, 29-2 and associated land areas. These buildings include administration offices, and athletic facilities which were not used for the use or storage of radioactive materials.. The Sorrento Valley portion includes uninhabitable land (steep slope) northwest and south of the site and is separated from the buildings-and active area by a fence (Figures 1 and 2).
ENVIRONMENTAL REVIEW In letters dated July 2, 1997, and August 13, 1997 the licensee su) plied the results of soil sampling and exposure rate measurements taken on tie non-impacted areas.
A total of 34 soil samples were taken on the two sites.
The samples were biased snd collected in locations most likely to have contamination, such as on the boundary between the non-impacted and impacted
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i areas and potential areas of drainage from the impccted areas.
A majority of the samples (23 01 the 34) were taken on the Sorrento Valley site because of its proximity to the impatted areas and potential soil contamination.
The soil samples were analyzed by gamma spectroscopy for Cs-137. Th-228. Ra-l 228 (ih 232). U-238, and U-235.
The licensee reported all soil sample results to be at or near background levels {see attachment 1).
NRC staff reviewed the survey methods and sampling results and determined that they are reasonable.
Although limited information was submitted by the licensee on survey techniques and instrumentation, the NRC inspector provided confidence in the licensee's ability to perform surveys and sampling accurately based on past inspections and observations, to perform confirmatory surveys of the areas to be released. *gh July in addition, an NRC inspection war conducted on July 21 throu 25, 1997, Results of this inspection, contained in NRC Inspection Report 70 734/97 04 dated August 21, 1997, stated that all measurements in these areas. included buildings, were at or near background (11 18 R/hr) with measurements ranging from 10 to 25 uR/hr on contact. These measurments were in general agreement with the 11censee's previous survey results.
Based on past activities in these portions of the site, and review of both NRC anu GA s upling data, it appears that these areas have not been impacted by radioactive materials.
This determination, along with the NRC inspector's confidence in the licensee's sampling data. Indicates that release of the non-impacted areas for unrestricted use will meet the following conditions:
1.
There is no significant change in the types or significant increase in the amounts of any eifluents that may be released off site.
2.
There is no significant increase in individual or cumulative occupational radiation exposure.
3.
There is no significant construction impact, and 4.
There is no signif.; ant increase in the potential for or consequences from radiological accioencs.
Accordingly, pursuant to 10 CFR 51.22(c)(11). neither an environmental assessment nor an environmental impact statement is warranted for this action.
CONCLUSION / RECOMMENDATIONS The staff ccncludes that there is reasonable assurance that GA's request for the' release of "non-impacted" GA facilities and their surrounding areas for unrestricted use meets regulatory requirements and constitutes no impact upon the health and safety of the public and common defense and security.
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License Condition S-1 has been revised to incorporate the date of April 30, i
July 2, and August 13, 1997.
The regional principal inspector agrees with this action.
Princioal Contributors
. leather Astwood Charles E. Gaskin Cristina Ley i
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