SOLICITATION NOTICE
A -- Alternatives for Carbon Tetrachloride (CCl4) Source Term Location
- Notice Date
- 1/13/2003
- Notice Type
- Solicitation Notice
- Contracting Office
- 3610 Collins Ferry Road (MS-I07) P.O. Box 880 Morgantown, WV 26507-0880
- ZIP Code
- 26507-0880
- Solicitation Number
- DE-RA26-03NT41735
- Point of Contact
- Raymond Johnson, Contracting Officer, Contact Contract Specialist, johnson@netl.doe.gov
- Small Business Set-Aside
- N/A
- Description
- The Department of Energy?s (DOE) National Energy Technology Laboratory (NETL) announces the availability of Program Research and Development Announcement (PRDA) No. DE-RA26-03NT41735 entitled ?Alternatives for Carbon Tetrachloride (CCl4) Source Term Location,? expected to be published on or about January 31, 2003. The PRDA supports the mission of the Office of Science & Technology (OST), Office of the Assistant Secretary for Environmental Management (EM), U.S. Department of Energy (DOE). The objective of this procurement is to select and demonstrate innovative technologies for characterizing and quantifying the remaining carbon tetrachloride (CCl4) as a dense non-aqueous phase liquid (DNAPL) in the subsurface. The DNAPL source term contamination is potentially located in both the vadose zone and saturated zone in difficult subsurface conditions and possibly acting as a continuing source to groundwater contamination. Verifying the existence of DNAPL is required to develop a long-term remediation strategy. The proposed work will be accomplished in two phases. In the first phase, the selected vendor(s) will be expected to develop a viable conceptual model for locating the presence/absence of DNAPL in the unconfined aquifer and evaluate/propose characterization technologies to validate the model. It is expected that one or two contractor (s) will be selected from the Phase I contractor(s) to proceed into Phase II. The selected contractor (s) would perform in Phase II the characterization activities proposed in Phase I to confirm the conceptual model that will describe the nature, extent and mass of the DNAPL with the objective of supporting a step-change remedial action decision. At the DOE Hanford 200 West Area, CCl4 is present in the vadose zone and groundwater. The vadose zone and unconfined aquifer consist of a thick accumulation of unconsolidated to semi-indurated sediments composed of silts, sands, and gravels. The water table is located at approximately 225 ft. below ground surface (bgs), and groundwater flows within a multi-aquifer system. A plume of dissolved CCl4 that resulted from past discharges extends over 11 square kilometers in the unconfined aquifer under 200 West Area. The highest concentration of CCl4 detected in the 200 West Area groundwater was approximately 8,000 ug/L. Dissolved CCl4 has been observed deep within the unconfined aquifer (greater than 30 feet below water table) and within the uppermost confined aquifer approximately 500-ft. bgs. Difficult conditions that hamper assessment of the plume in the 200 West Area include the complex sediment facies that control fluid transport, gravel lenses, well-cemented caliche layers, man-made obstructions (buildings, tanks, others), and extensive and deep contamination. Costs to characterize and monitor this deep and large plume with conventional technologies such as drilling and sampling are excessive, and significant cost-savings could be realized with improved methods. In 1999 the U.S. Department of Energy, Richland Operations Office (RL) requested the assistance of the Innovative Treatment Remediation Demonstration (ITRD) program to provide technical support to assist with the evaluation and selection of technologies applicable at Hanford for characterization and remediation of CCl4 contamination in ground water and the vadose zone. A Technical Advisory Group (TAG), consisting of RL and contractor project leads, technical experts, regulators, stakeholders and Tribal representatives, was formed for this project. The TAG identified and reviewed approximately thirty technologies they considered applicable to enhance remediation of the CCl4 contamination. The advisory group suggested additional modeling and characterization activities to assist in developing a final recommendation for implementation of a remediation strategy for the CCl4 plume. Early in the evaluation process, it was recognized that if DNAPL exists in the subsurface, then definition of the location and estimation of the volume of the DNAPL source was required before treatment technologies could be evaluated. In response, the ITRD performed an initial review of characterization technologies. Examples of Innovative characterization technologies identified by the ITRD program that might be applicable to Hanford include: direct push drilling methods such as the cone penetrometer, noninvasive methods such as geophysical technologies, DNAPL volume estimation using Partitioning Interwell Tracer Test (PITT), etc. All of these technologies offer the advantage of locating and estimating the volume of DNAPL in the subsurface more efficiently and at a much lower cost than standard drilling methods used in the baseline approach. A listing of the technologies evaluated in the ITRD will be made available with the solicitation. The ITRD program completed a groundwater modeling study and report of the Hanford CCl4 plume in April 2001. The modeling, performed by Pacific Northwest National Laboratory (PNNL), was to provide an indication of the potential impact of the CCl4 source on the compliance boundary (edge of central plateau) approximately 5,000 m from the source area. The primary results of the modeling bracket the amount of CCl4 source that will most likely result in compliance or noncompliance at the boundary and the relative influence of the various modeling parameters. Modeling reports will be made available with the solicitation. Currently, a Work Plan for regulatory approval is being developed to guide the Remedial Investigation and Feasibility Study (RI/FS) for the 200-PW-1 Operable Unit (DOE/RL-2001-01, Draft B). This Operable Unit (OU) includes the Hanford CCl4 vadose zone plume associated with the waste disposal sites and other parts of the vadose zone. A feasibility study is planned following the RI activities to support a Proposed Plan and Record of Decision for the 200-PW-1 OU Waste Sites and the CCl4 vadose zone plume by 2006. The 200-PW-1 RI consists of two major parts: (1) a known source term waste site characterization effort which is focused on improving the understanding of the vertical distribution of CCl4 and radionuclides in the vadose zone beneath the waste sites, and (2) a dispersed CCl4 vadose zone plume characterization focused on identifying previously unknown surface sources of CCl4 and potential vadose zone sources that may be continuing to contaminate groundwater. Investigation of the known source term waste sites in FY03 will involve drilling two wells directly in the waste pits and trenches taking limited samples at different depth horizons. Results of this drilling program will be available towards the end of FY03 or early FY04. The dispersed CCl4 vadose zone plume will be investigated in two steps. Step I, which began in FY02, uses direct push technology to sample the shallow depths below and around the plant piping and other subsurface infrastructure which could have leaked significant amounts of the solvent, and step II will investigate the intermediate to deep vadose zone to the top of the water table. Results of the step I investigation will be available in mid-FY03 and the results of the step II investigation will be available mid-FY04. The current baseline for the site includes obtaining a final record of decision for the carbon tetrachloride plume by 2024 to meet final remediation goals for the Hanford 200-Area. The Hanford Site goals included in the PMP call for implementation of a final remedy for both groundwater and the vadose zone by 2012. The goal of this project is the confirmation of a conceptual model(s) in FY04, that will describe the nature, extent and mass of the DNAPL. Achievement of this goal will provide the necessary information to reduce the risk in meeting RL?s specific commitment to: (1) complete a carbon tetrachloride DNAPL field investigation by 2004 stated in Strategic Initiative 6 in the Hanford PMP and (2) the regulatory agencies prior to the CERCLA 5-Year Review scheduled in 2005 to support implementing changes to the current remedial action decision. A pre-proposal conference will be held in Richland, Washington on February 11, 2003 to present site specific information. In order to prepare for the pre-proposal conference/site tour, prior to close of business (4:00 p.m. PST) on February 4, 2003, you are asked to provide the company name, address, telephone, facsimile, and E-mail address, as well as the number (limit of 2 individuals per company), names, and dates of birth of persons (only US citizens), planning to attend the pre-proposal conference/site tour by sending an E-mail notice to Scott_W_Petersen@rl.gov. Directions to the site can be obtained by contacting Scott Petersen via E-mail, telephone at (509) 372-9126, or telefax at (509) 373-3974. Once released, the solicitation will be available for downloading from the IIPS Internet page. At this Internet site you will also be able to register with IIPS, enabling you to submit a proposal. If you need technical assistance in registering or for any other IIPS function, call the IIPS Help Desk at (800) 683-0751 or E-mail the Help Desk personnel at IIPS_HelpDesk@e-center.doe.gov. The solicitation will only be made available in IIPS, no hard (paper) copies of the solicitation and related documents will be made available. Prospective offerors who would like to be notified as soon as the solicitation is available should subscribe to the Business Alert Mailing List at http://www.netl.doe.gov/business. Once you subscribe, you will receive an announcement by E-mail that the solicitation has been released to the public. This is a courtesy, therefore, you are encouraged to frequently monitor the NETL website for solicitation postings. Telephone requests, written requests, E-mail requests, or facsimile requests for a copy of the solicitation package will not be accepted and/or honored. Proposals must be prepared and submitted in accordance with the instructions and forms contained in the solicitation. The actual solicitation document will allow for requests for explanation and/or interpretation.
- Web Link
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