ML20134M453
| ML20134M453 | |
| Person / Time | |
|---|---|
| Site: | 07003085 |
| Issue date: | 11/21/1996 |
| From: | Rosenthal P BABCOCK & WILCOX CO. |
| To: | Astwood H NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| ESH96-042, ESH96-42, NUDOCS 9611250113 | |
| Download: ML20134M453 (2) | |
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' B&W Nuclear Environmental Services, Inc.
a McDermott company P.o. Box 10548 Lynchburg, VA 24506-0548 (804) 948-4600 Fax: (804) 948-4846 ESH96-042 November 21,1996 Heather M. Astwood Low Level Waste and Decommissioning Projects Branch Division of Waste Management U.S. N~uclear Regulatory Commission TWFN 7F-27 SNM-2001 Washington, DC 20555 Docket No. 70-3085
Subject:
Parks Shallow Land Disposal Area (SLDA) Technical Meeting December 4,1996.
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Dear Ms. Astwood:
The Parks SLDA Project Management Team (PMT) has general interest in the potential for transport, reconcentration, and criticality involving highly dilute fissile materials in waste management facilities. The PMT has examined this issue qualitatively in connection with the SLDA, and has concluded that the issue ; oses no real prslem for the SLDA, either in its present state or in its proposed remediated staie. However, the PMT is considering performing some limited quantitative analysis to better characterize the issue in the context of the SLDA.
The PMT understands that the NRC staffis exploring this issur.iom both the generic and site-specific standpoints. The PMT is ir.terested in discussing work in this area to avoid duplication of effert, to help focus the PMT's effort, and to supplement the NRC staff effort to the extent 1
- practical and appropriate. The PMT is particularly interested in analyses that bear on the SLDA situation.
There are three particular areas ofinterest that the PMT would like to discuss:
- 1. Criticality Analysis What kind of analysis that might bear on the SLDA has the staff perfoimed? What geometries, material compoi,itions and proportions were analyzed? Did the stafTs analysis extend to anything beyond U-235/ water / silicon dioxide mixtures? Has the staff analyzed the effect of U-235 enrichment, neutron absorbers commonly present in soils, etc?
- 2. Transport Analysis What kind of analysis that might bear on the SLDA has the staff performed regarding uranium dissolution, transport, and reconcentration and migration of other materials that might affect the potential for criticality?
9611250113 961121 pU O/O PDR ADOCK 07003085 C
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Rosenthd to Astwood.
ESH96-042 page2
- 3. Source Term Analysis What kind of analysis that might bear on the SLDA has the staff performed regarding uranium source term or uranium source term uncertainty?
If you have any questio'ns or need a nything additional, please feel free to contact me at (804)948-4733.
l Sincerely, Philip R. Rosenthal Senior Project Manager
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