Bureau of Reclamation, Acquisition Operations Group, Code D-7810, Denver Federal Center, PO Box 25007, Denver CO 80225

F -- HYDROGEOLOGIC SERVICES WELLINGTON-ORO MINE, BRECKENRIDGE, CO SOL 98SQ810217 DUE 021198 POC Evelyn M. Tate, 303-236-8040 X228 (VOICE) OR 303-236-8630 (FAX) WEB: AAMS Current Solicitation Listing (this is a hot link to the AAMS homepage), http://www.usbr.gov/aamsden/. E-MAIL: Evelyn M. Tate, etate@do.usbr.gov. The Bureau of Reclamation is seeking potential sources for hydrogeologic services at the Wellington-Oro Mine near Breckenridge, Colorado, to investigate the feasibility of implementing groundwater source remediation or other strategies to reduce/control acid mine drainage (AMD) from the partially flooded mine. The proposed work consists of characterizing the mine and streams near the mine to define potential discrete inflow and outflow sources or zones to the mine workings, identifying structures or features within the mined ore body which may act as major metals sources, and evaluating the impacts of AMD on nearby groundwater and surface water. The Bureau of Reclamation anticipates issuing a blanket purchase agreement (BPA) using simplified acquisition procedures and issuing task orders as specific elements of work are defined. The total estimated value of all task orders issued is estimated at $25,000 to $150,000 annually. Individual task orders will not exceed the simplified acquisition threshold, ($100,000). The period of performance for the BPA will be approximately four years. The focus of the studies will be surface and subsurface source remediation techniques for controlling groundwater inflows around or through the mine workings, isolation or pretreatment of metals-producing areas identified within the mine workings, and/or refinement of water treatment alternatives. The hydrogeologic services which may be required in task orders include, but are not limited to the following: water quality/quantity sampling including temperature, pH, specific conductivity, in situ flow at various levels of wells or shafts; groundwater studies including one or more pump tests; analysis of data developed under the proposed contract and other existing contracts and incorporation of the data into the existing site characterization. Potential sources must demonstrate previous experience in study and characterization of AMD sites, AMD treatment methodologies; have experience in and/or a comprehensive knowledgeable of work/characterization previously accomplished at Wellington-Oro Mine; and have the expertise and knowledge to select and implement methods to identify potential freshwater inflows into the Wellington-Oro mine workings, select and implement methods to identify AMD outflows from the mine workings into French Creek, and identify the geology structure and potential mineralization areas of the workings which may be major contributors to AMD; and experience and capability to evaluate downstream impacts from AMD which may be originating from the Wellington-Oro mine. Interested sources that possess the above experience, knowledge, and capabilities are encouraged to submit substantiation to the Bureau of Reclamation, in writing, either by mail, fax, or transmittal to the e-mail address listed below no later than 20 days after date of publication of this notice. Responses must be in sufficient detail to demonstrate the respondent's ability to meet the requirements stated above, and should include the firm's name, address, phone and fax numbers, and the firm's DUNS and TIN. This is a Potential Sources Sought Notice only, and not a Request for Quotation or an announcement of a solicitation. The Government will not pay for any materials furnished in response to this synopsis. Submittals furnished will not be returned to the sender. (0022)

Loren Data Corp. http://www.ld.com (SYN# 0052 19980126\F-0010.SOL)