Westinghouse Hanford Company, P.O. Box 1970, MSIN G1-59, Richland, Washington 99352

44 -- HANFORD RESERVATION DOUBLE-SHELL STORAGE TANK RADIOACTIVE WASTE RETRIEVAL POC: B. E. Voisin, Procurement Team Leader, (509) 372-0581. Westinghouse Hanford Company (WHC) is seeking organizations with innovative, commercially available equipment, engineered concepts, and systems for retrieving radioactive hazardous waste from underground double-shell tanks at the U.S. Department of Energy's (DOE) Hanford nuclear storage site near Richland, Washington. There are 28 double-shell tanks (DSTs) constructed between 1968 and 1986 with a capacity of approximately 3800 m3 (1 million gallon) each that contain hazardous radioactive and chemical waste in the form of salt cake, sludge and supernate 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 automatic level gauges, steam/cooling coils and other miscellaneous items. There is limited access through the top of the tanks into their interior. The major tasks associated with DST waste retrieval involve the mobilization the salt cake, sludge and supernate waste and conveyance of the waste out of the tanks to other storage or treatment facilities. Included in waste conveyance is any waste conditioning necessary for transport to ensure that the transportation systems are not compromised. Equipment, engineering concepts, and systems are being sought to perform mobilization and conveyance separately as well as systems to accomplish the retrieval tasks combined. 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 or systems that perform some or all of the DST waste retrieval tasks. Initially, the program will include a comprehensive review and categorization of equipment or systems. Further review through simulations, modeling, demonstration testing or other techniques may be necessary if the result would be an addition to the Hanford site's existing technology or a significant reduction in cost or risk over the current mixer and transfer pump system. Future work may involve integrating various retrieval equipment components into systems or integration of systems for specific retrieval projects. Interested parties are invited to submit an expression of interest in providing information about their product(s). 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 1996. 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. (346)

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