Argonne National Laboratory, EA900, 9700 South Cass Ave., Argonne, IL 60439

B -- REDUCING WATER INFILTRATION AROUND SUBSURFACE TANKS SOL 032699 DUE 040999 POC Phil Horstman, 630/252-9848; Pete Molton, 509/375-6485 WEB: Click here to access the TechCon web site., http://www.ead.anl.gov/techcon. E-MAIL: Click here to pose questions about the notice/opportunity., horstmap@anl.gov. Industry input is being requested for a 2-day Forum on the topic of "Reducing surface net water infiltration around the Hanford tanks". The Forum will be held in Richland, Washington, site on May 4-6, 1999. The results of the Forum will be used to identify a range of technical requirements for net water infiltration measurement and moisture monitoring, and reduction by diversion or other means. The TechCon and ITRD programs of DOE are coordinating the Forum, which will involve staff from the site remediation contractor, the Department of Energy, responsible regulators, and other stakeholders. Technology providers (vendors) with relevant knowledge in this technical area and wishing to participate in this invitation-only Forum should respond as soon as possible. The procedure is to submit capabilities and experience via the TechCon web site at http://www.ead.anl.gov/techcon using the "Current Project Opportunities" link (Hanford/Prevent Contaminant Migration) or contacting a TechCon representative identified above. THIS IS NOT A SOLICITATION FOR BID, but it provides industry participants a unique opportunity to interact first-hand with the problem-holders and decision-makers who will ultimately be responsible for selecting the interim actions to be implemented. DOE's Hanford site is located in southeastern Washington State, next to the Columbia River. DOE and its predecessor agencies produced nuclear weapons materials on this site from the 1940s until about mid-1989. Wastes from these operations are stored in 177 underground tanks pending permanent disposal, of which 67 are believed to have developed leaks. Recent evidence indicates that in some areas contaminants from these leaks have reached the underlying water table. Enhanced surface water (rainfall, snowfall) net infiltration around the tanks may have contributed to the higher-than-expected rate of contaminant movement through the vadose zone. It may be necessary to monitor moisture movement that may be driving contaminants deeper, and/or take actionsto minimize net surface infiltration prior to final closure of the tank farms. Depending on the results of the Forum, vendors with potentially useful solutions to the problem of monitoring and reducing net water infiltration around the Hanford tanks may be invited to participate in one or more technology demonstration activities. The TechCon Web Site will provide additional details on the Forum and links to support documents, questionnaires, and directions for submitting the required information. The information provided by the responders at this web site will be the only source used for the purpose of preparing a List of INTERESTED, PRE-QUALIFIED SOURCES. Only those responders selected from the Pre-Qualified list will receive an invitation to the Forum. All responses must be posted to the web site by 04/09/99. TELEPHONE INQUIRIES WILL NOT BE ACCEPTED. THIS IS NOT A REQUEST FOR PROPOSAL. Posted 03/26/99 (W-SN313234). (0085)

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