Westinghouse Hanford Company, David C. Ramsower, MSIN H5-61, P.O. Box 1970, Richland, WA 99352

44 -- HANFORD RESERVATION SINGLE-SHELL STORAGE TANK RADIOACTIVE WASTE RETRIEVAL contact David C. Ramsower, H5-61, (509) 376-5602. Westinghouse Hanford Company (WHC) is seeking organizations with commercially available equipment, engineered concepts, systems or services for retrieving radioactive hazardous waste from underground single-shell tanks at the U.S. Department of Energy's (DOE) Hanford nuclear storage site near Richland, Washington. There are 133 single-shell tanks (SSTs) that range from 199 m3 (500,000 gallon) capacity to 3800 m3 (1 million gallon) capacity and contain hazardous radioactive and chemical waste in the form of ``salt cake''; sludge; hard pan or ``heel'' at the bottom of the tanks; and liquids. The waste forms are present in various proportions in each tank. The tanks contain a variety of in-tank hardware in the form of pumps, thermocouple trees and other miscellaneous items. There is limited access through the top of the tanks into their interior. The major retrieval tasks involve waste mobilization; conveyance of waste out of the tank; waste conditioning for transport; and waste transfer/transport to another storage or treatment facility. Examples of the type of equipment for waste retrieval include but are not limited to pumping equipment, hydraulic mining equipment, tank cleaning equipment, and remote handling equipment. The objective of this program is to determine from industry their best approaches to retrieving waste utilizing commercially available and adaptable equipment/systems/services that perform some or all of the retrieval tasks. Initially the program will include a comprehensive review and categorization of equipment/systems/services. Further review through simulations, modeling, demonstration testing or other techniques may be necessary if the result would be a significant reduction in cost or risk over the current baseline technology of past practice sluicing. Future work may involve integrating various retrieval equipment components into systems or integration of systems/services for specific retrieval projects. Interested parties are invited to submit an expression of interest in providing information about their product(s) or services. An information package on the specifics of the tanks, waste characteristics, additional response guidelines and related data is available upon request to WHC. Expressions of interest (on company letterhead) should be mailed to: Westinghouse Hanford Company, P.O. Box 1970, Richland, WA 99352, Attn: Tank Retrieval Team, MSIN H5-61 or Faxed to Tank Retrieval Team at (509) 372-0065 or sent via the internet to tank_retrieval_team@rl.gov. Responses to this request for expressions of interest will be accepted through September 1995. WHC is seeking this information for planning purposes and will not compensate any organization for responding to this announcement. Questions on this announcement should be addressed to: David C. Ramsower, Acquisition Engineer; Larry McDaniel, Task Lead; or Jim Yount, Technical Lead on (509) 376-5602. (215)

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