MSE Technology Applications Inc, P.O. Box 4078, Butte, Montana 59702

Y -- PREQUALIFICATION FOR JET GROUTING AND EMPLACEMENT OF GROUT AT BURIED WASTESITES SOL A62605 DUE 020797 POC Charles E. Ries, Senior Subcontract Administrator, (406) 723-8213 x297 The Subsurface Contamination Focus Area of the U.S. Department of Energy, Office of Technology Development and MSE-Technology Applications, Inc. is supporting the stabilization and encapsulation of buried waste sites with a variety of grout materials. The grout materials under study include cementatious, organic and in organic grouting materials. The project objective is to create a monolithic block from the soil/waste matrix that simulataneously stabilizes, reduces and/or eliminates subsidence and contains the contaminants restricing future migration. The monolith can be considered as a final in-situ waste disposal method or an interim in-situ storage alternative followed by retrieval of the monolith or a portion of the monolith at a later time. This is a Solicitation for Prequalification of Parties interested in performing jet grouting of a simulated buried waste site. Successful completion of the grout injection at the simulated site may lead to the implementation at an actual contaminated site. Theoperation must first penetrate through the buried waste to the soil/bedrock interface. The jet grouting should be capable of perforrming to a depth of at least 20 feet. Once inserted, the jet grouting drill system must then jet grout with a controlled/programmed delivery system that includes drill stem withdrawal rate, rotation rate, and grout injection pressure/flow rate. The jet grouting operation must be performed with minimal soil/grout surface returns (preferably less than 5% of the injected grout). The grout materials will vary in viscosity from that of water to Portland cement mixed at a 1:1 ratio by weight with water and may involve injecting dual component grouts, therefore, information on the grout injection system and its capabilities is required. Replacement grouting technologies do not apply. In addition, the process must be accomplished with little or no heave in the region of the grouting operation. The following items are being considered: A) Prospective Offers with experience in a radioactive and hazardous waste environment with particular emphasis on transuranic materials and volatile organics, B) experience in grouting a variety of mixtures including dual component grout materials or pre-heated grout materials, C) availability (e.g. time to mobilize), D) company and personnel experience (including specific projects), E) experience at government facilities, F) technology maturity, G) equipment specifications and availability; and, H) information on additional developmen/testing for the technology. Cost sharing opportunities that may be available should also be included. Although all items are desirable, they are not requirements. To be considered, interested parties should respond within 30 days of publication of this announcement. Prospective Offerors will be evaluated based on information supplied. Field work is scheduled for early summer 1997 for simulated testing and late summer 1997 for contaminated site work. (0003)

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