Rocky Mountain Remediation Services, Rocky Flats Environmental Technology Site, P.O. Box 464, Golden, Colorado 80402-0464

C -- TREATMENT AND DISPOSAL OF DEPLETED URANIUM, SOIL, AND CYANIDE WASTES SOL RM-SS-01 DUE 121498 POC Technical: R. Cygnarowicz (303)966-7916; Procurement: K. Fairchild (303)966-4726 The Closure Management Division of Rocky Mountain Remediation Services, L.L.C. (RMRS) is currently planning for the treatment and disposal of depleted uranium (DU), soil, and cemented cyanide wastes that were excavated during a CERCLA removal action from Trench 1 at the Rocky Flats Environmental Technology Site (RFETS). RFETS is located approximately 16 miles northwest of Denver, Colorado. Waste Stream #1: The DU wastes (approximately 30 tones) range from hard/compacted solids to sludges and pastes and are classified as Atomic Energy Commission source material. U-238 activities in these wastes typically range from 150,000 to 340,000 pCi/g. Excavated drums of DU have been overpacked into 160 steel drums and 29 steel waste boxes (1.6 cubic yards each). Mineral oil has been added to the drummed waste to temporarily inert the potentially pyrophoric DU. Soil has been added to the boxed waste for the same purpose. The DU waste are contaminated with F-listed chlorinated solvents, semi-volatile organic compounds, polychlorinated biphenyls (PCBs), and metals. The primary contaminants of concern are tetrachloroethylene (PCE), trichloroethylene (TCE), Aroclor 1254, and cadmium. The pyrophoric nature of the DU is also of primary concern. PCE and TCE detections range from non-detect levels to 20 weight percent and 1 weight percent, respectively. Aroclor 1254 analytical results range from non-detect to 1,700 parts per million (ppm). Toxicity Characteristic Leachability Test (TCLP) results for d cadmium were observed at levels up to 35 milligrams per liter (mg/l). Approximately 36 cubic yards of contaminated soil may be added to the DU waste stream described above. This soil is described as a gravelly clay and contains some debris (i.e., metal, plastic, etc.). The contaminated soils have been containerized in ten steel waste boxes (3.6 cubic yards each). The soils are contaminated with DU and organic compounds. U-238 was detected at activities ranging from less than 100 pCi/g to 4,000 pCi/g and PCE was detected at concentrations ranging from less than 1 ppm to 51 ppm. Aroclor 1254 was detected in nearly all soil samples collected, however, all concentrations reported were below the 50 ppm TSCA regulatory limit. The contaminated soils are not considered pyrophoric. The DU and soil wastes require treatment in accordance with Land Disposal Restriction (LDR) requirements for F001 and F002 wastes. Waste Stream #2: Ten drums of cemented cyanide waste that are excavated from Trench 1 have been overpacked into steel drums. The cemented cyanide wastes are described as damp-to-wet unsolidified, granular, paste-like solids that contain asbestos fibers. CYanide (total) contamination was detected in the waste from 0.5 to 5.3 percent by weight. The waste also exceeds regulatory thresholds for cadmium with TCLP cadmium concentrations ranging from 829 to 1,200 mg/l. The cemented cyanide wastes also contains low levels of uranium contamination. U-238 activities up to 117 pCi/g were observed in this waste stream. No volatile or semi-volatile organic compounds were detected in the cemented cyanide waste. The cemented cyanide waste stream requires treatment in accordance with Land Disposal Restriction (LDR) requirements for F006 and F008 wastes. As part of a market survey, RMRS is soliciting technical and regulatory permit information regarding onsite and offsite services and equipment that are appropriate for the treatment and disposal of Trench 1 waste sstreams described above. This information shall include, but not necessarily be limited to: Technical specifications, treatment process flowsheets, statements of qualifications, similar project experience descriptions, treatment system performance data, treatability testing capabilities, size reduction and materials handling equipment and capabilities, permits, and waste acceptance criteria (i.e., offsite facilities). The ultimate goal of treatment is to allow the wastes in question to be transported to an offsite, permitted facility for final disposal. The waste streams, including secondarywaste streams generated by any treatement processes, must be treated and disposed of by no later than September 30, 1999. Waste treatment may be performed at RFETS, but RMRS prefers for the waste to be treated at an off-site facility. If offsite treatment is proposed, the submittal must describe the regulatory structure under which the waste will be treated; describe all required permits; include a corporate officer's certification stating all required permits are current and will be valid through September 30, 1999; include the facility's waste acceptance criteria; and include a copy of EPA's CERCLA offsite rule authorization letter. Due to the nature of the work, RMRS is interested in proven technologies and methods for treating and disposing of the Trench 1 wastes described above. Demonstrated experience in treating and managing hazardous and radioactive wastes is necessary. A working knowledge of, and demonstrated compliance with DOE, EPA, and OSHA regulations is also necessary. This advertisement is NOT A SOLICITATION for services. Responses to this advertisement will be evaluated for the purpose of developing a list of vendors to which a Request for Proposal will be issued at a later date. All submittals shall be received no later than 4:30 P.M. (MST) on December 14, 1998. Submit responses and inquiries to Rocky Mountain Remediation Services, L.L.C., Rocky Flats Environmental Technology Site, P.O. Box 464, Golden, CO 80402-0464, Attention: Robert Cygnarowicz, Building T893B, (303)966-7916. Posted 11/23/98 (W-SN274198). (0327)

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