ML20079C289

Forwards Response to NRC 910522 Request for Addl Info Re Disposition of Reactor Tank Shielding Water & Reactor Components to Resolve NRC Concerns Re Decommissioning Plan Submitted on 900717

ML20079C289
Person / Time
Site:	05000072
Issue date:	06/12/1991
From:	Brophy J UTAH, UNIV. OF, SALT LAKE CITY, UT
To:	Alexander Adams NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), Office of Nuclear Reactor Regulation
References
91-174, NUDOCS 9106190172
Download: ML20079C289 (2)

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THE W UNIVERSITY 12 June 1991 Refer to: 91 174 0FUTAli U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Attention: Document Control Desk Alexander Adams, Jr., Project Manager Standardization and Non-Power Reactor Project Directorate Office of Nuclear Reactor Regulation l

Subject:

Response to Request for AdditionalInfonnation: Decommissioning Plan for the University of Utah AGN 201M Nuclear Reactor License No. R 25, Docket No. 50 72 Gentlemen:

Enclosed is the response to your letter dated 22 May 1991 requesting additional infomntion regarding disposition of reactor tank shielding water and reactor components.

This response should resolve NRC's concerns over the above questions which arose during the NRC staff review of the University of Utah Decommissioning Plan for the AGN 201M Nuclear Reactor submitted 17 July 1990.

If you have further questions regarding this response or require additional information, pleat . call the facility director, Gary Sandquist, at (801) 581-7372.

Sincerely yours ,

• ($il l nes J. hy (

\ ice President for Reseltch Distribution with enclosure:

U.S. NRC, Region IV Suite 1000 611 Ryan Plaza Drive Arlington,TX 76011 State of Utah )

Countyof)hf/4/h h On this Ja__ day of1.d9 9/, before men:14 4.'7mhav(a notary public, personally appeared QL, Qdsg4c, personally known to me to be the person w hose name is subscribed to this instrumenf, and acknowledged that he executed the same.

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Response to Request for Additional Information

1. Please provide additional detail concerning your plans to dispose of the reactor shield water."

Response

The reactor shield water has been preliminarily analyzed for radioactive contamination by the UUNEL staff. The analyses do not indicate the presence any detectab'e radionuclides of reactor origin in shield water samples. An independent analysis of the shield water is being performed by the University's Radiological Health Depanment (RHD) which wi;l also analyze samples for tritium. The total volume of shield water is estimated at 1000 gallons. Results of the water sample analyses will be documented with estimates of the total activity of any radioactive contammants. The Radiation Safety Officer will review the surveys and will give permission to dispose of tF- water based on the release criteria of 10 CFR 20.303. Provided that criteria for recase to an unrestricted area are satisfied, the snield water will be disposed of via the University of Utah's sanitary sewer. If approved, the shield water will be irained to the sewer according to written procedure. In the event that the water does not meet the above criteria, the water will be processed by the RHD to remove the radioactive contamination to required regulatory levels and then discharged. Removed radioactive contamination will subsequently be disposed of as radioactive waste. The processed water will be reanalyzed for radioactive contamination before discharge to the sewer.

A summary of the time, date, volume, and total quantity of activity released to the sewer will be included in the final decommissioning repon .

2. "As your plan is curTently written, the only, option is disposal of the reactor with contaminated or activated components being disposed of as radioactive waste. Do you want the flexibility to be able to transfer tie reactor to another pany? This transfer would have to meet all applicable regulations."

Response: g Since the decommissioning plan was written, the University of Utah Nuclear Engineering Laboratory (UUNEL) has been contacted by representatives of the University of Nonh Texas who have expressed a serious interest in acquiring the AGN reactor for use at their institution. UUNEL would be delighted to see the AGN put to constructive use following decommissioning rather than its disposal as, scrap or, radioactive waste. Therefore UUNEL desires to amend the AGN decommissionmg plan to include the provision to transfer the reactor and any activated or contaminated components to another licensee in accordance with all applicable federal, state, and local regulations.

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