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Details

Safety Analysis Approach to Tank 241-SY-101 Remediation Activities.

DE2004820823

Publication Date	2000
Personal Author	Grigsby, J. M.; Kripps, L. J.; Ryan, G. W.
Page Count	22
Abstract	An Unreviewed Safety Question was declared related to the unexplained waste surface level growth in high-level radioactive waste storage Tank 241-SY-101 at the Hanford Site in Richland, Washington. Because the waste surface level in Tank 241-SY-101 was growing in a manner inconsistent with previous behavior, the following issues of concern were recognized: The continually rising surface level had the potential to reach physical encumbrances or limits within the tank (e.g., instrumentation, cameras, established Authorization Basis limits, and the double containment boundary) and the potential to significantly change the consequences of previously analyzed accidents (e.g., flammable gas deflagrations). The presence of new hazards because of significant quantities of flammable gas retained in the crust (e.g., crust collapse gas-release events). The potential to inhibit information gathering related to the existing hazards in the tank (e.g., unable to determine surface level to assess the potential for large gas releases).
Keywords	Remediation Storage tanks Radioactive waste storage Hanford reservation Hazardous materials Linings Slurries TANK 241-SY-101
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	CH2M Hill Hanford Group, Inc., Richland, WA.; Fluor Federal Services, Richland, WA.; Department of Energy, Washington, DC. Assistant Secretary for
Supplemental Notes	Prepared in cooperation with Fluor Federal Services, Richland, WA. Sponsored by Department of Energy, Washington, DC. Assistant Secretary for Environmental Management.
Document Type	Technical Report
NTIS Issue Number	200414

Safety Analysis Approach to Tank 241-SY-101 Remediation Activities.

Safety Analysis Approach to Tank 241-SY-101 Remediation Activities.
DE2004820823

Publication Date	2000
Personal Author	Grigsby, J. M.; Kripps, L. J.; Ryan, G. W.
Page Count	22
Abstract	An Unreviewed Safety Question was declared related to the unexplained waste surface level growth in high-level radioactive waste storage Tank 241-SY-101 at the Hanford Site in Richland, Washington. Because the waste surface level in Tank 241-SY-101 was growing in a manner inconsistent with previous behavior, the following issues of concern were recognized: The continually rising surface level had the potential to reach physical encumbrances or limits within the tank (e.g., instrumentation, cameras, established Authorization Basis limits, and the double containment boundary) and the potential to significantly change the consequences of previously analyzed accidents (e.g., flammable gas deflagrations). The presence of new hazards because of significant quantities of flammable gas retained in the crust (e.g., crust collapse gas-release events). The potential to inhibit information gathering related to the existing hazards in the tank (e.g., unable to determine surface level to assess the potential for large gas releases).
Keywords	Remediation Storage tanks Radioactive waste storage Hanford reservation Hazardous materials Linings Slurries TANK 241-SY-101
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	CH2M Hill Hanford Group, Inc., Richland, WA.; Fluor Federal Services, Richland, WA.; Department of Energy, Washington, DC. Assistant Secretary for
Supplemental Notes	Prepared in cooperation with Fluor Federal Services, Richland, WA. Sponsored by Department of Energy, Washington, DC. Assistant Secretary for Environmental Management.
Document Type	Technical Report
NTIS Issue Number	200414