Department of Energy, Ohio Field Office, P.O. Box 3020, Miamisburg, OH 45343-3020

B -- SPECIAL STUDIES AND ANLAYSIS-NOT-R&D -- POTENTIAL SOURCES SOUGHT POC Deborah K. Bloor (937) 865-3147 POC Doug Maynor (937) 865-3986 DESC: -- BWTX of Ohio, Inc. (BWTX), Prime Contractor for the United States Department of Energy's (DOE's) Miamisburg Environmental Management Project (MEMP), Miamisburg, Montgomery County, Ohio, seeks QUALIFIED SOURCE(s) to provide intrusive/invasive geophysical characterization technologies to characterize hazardous, radioactive and mixed waste contents entombed in the Old Cave at the MEMP. The MEMP is a 306-acre Department Of Energy (DOE) closure site currently undergoing Decontamination and Decommissioning (D&D) activities before being turned over to City of Miamisburg for re-industrialization. The major mission of the site was the production of weapons initiators. Up to 1954, a 1,000-ft2 room located in the Semi-Works (SW) Building, currently known as the Old Cave, was a hot cell used for the processing of radium (Ra-226) and actinium (Ac-227). When Tritium replaced actinium as the initiator of choice, this highly contaminated hot cell underwent partial D&D as work schedules and resources permitted. Because of the extreme danger associated with the radium and actinium, this area was entombed in 1959 by pouring walls around the remaining base of the hot cell, filling the volume with compacted sand and gravel, and then pouring a concrete cap. With the danger thus contained and properly shielded, the top of the tomb was used as new lab space until the operations ceased. Knowledge of what is specifically entombed in the Old Cave area is not complete at this time. In order to establish the best knowledge base for the entombment and to ensure a sound design for its remediation and removal, noninvasive geophysical techniques will be initially used to characterize the contents of the Old Cave. Multiple noninvasive geophysical techniques may be used to determine subsurface structures, contaminants, contaminant pathways, and to optimize the strategic invasive characterization approach. Imaging will show: structures that need to be avoided to obtain soil samples; locations of sumps, tanks, saturated soils; and location of rebar in concrete. Using the results of noninvasive geophysical characterization efforts, select invasive characterization techniques will be used to empirically validate the contents of the Old Cave and to collect soil samples for characterization. Subsurface access technologies will be used to get through the walls and floors. These same holes created for best imaging in the subsurface can then be used as access windows for small footprint push or drilling technologies to go under facilities and through suspected problem spots. Soil cores can be taken using these access technologies allowing soil under buildings to be characterized. Ultimately the number of holes cut in walls and soil cores collected will need to be minimized based upon data quality objectives obtained from noninvasive characterization data analysis. BWXTO is looking for experienced operators in applying invasive geophysical technologies and preferably operators that can use more than one technology to obtain complementary data. Interested parties can access the Notice, Potential Sources Sought for Characterization of the Old Cave at the Miamisburg Environmental Management Project via the following two Web Sites: http:// web.ead.anl.gov/techcon or http://www.doe-md.gov. The TechCon Web Site will provide additional details on the project 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 for the Pre-Qualified list will receive a Request For Proposal (RFP), expected to be issued in July 2000. All responses must be posted to the web site by 06/30/00. TELEPHONE INQUIRIES WILL NOT BE ACCEPTED. THIS IS NOT A REQUEST FOR PROPOSAL. CITE: (XXX-XXXXXXXX) Posted 05/22/00 (W-SN457254). (0143)

Loren Data Corp. http://www.ld.com (SYN# 0026 20000524\B-0012.SOL)