U.S. Environmental Protection Agency, 26 W. Martin Luther King Dr., Cincinnati, OH 45268

A -- EXTENSION OF CONTRACT 68-C5-0075 -- BIOSYSTEMS RESEARCH -- COMPLETION OF ON-GOING PROJECT SOL BATT-1 POC Mike Hennessey, 513-487-2032 E-MAIL: EPA, Office of Acquisition Management, Cincinnati, hennessey.mike@epa.gov. EPA intends to extend Contract 68-C5-0075 on a noncompetitive basis to allow the contractor, Battelle Memorial Institute, to complete the current test cycle for a work assignment entitled, " Field Evaluation of Biotreatment Technologies". The objective of the work is a field evaluation of in-situ and ex-situ biotreatment technologies to remediate polycyclic aromatic hydrocarbon (PAH)-contaminated soil on the site of a former manufactured gas plant (MGP) operation in Bedford, IN. The site is laid out in nine plots, each 45 feet X 26 feet. Each plot contain soil zones for the four processes being evaluated (phyto, LT, B/C, and NA). The four zones are situated within the nine plots in random order. The phyto and NA processes are in-situ approaches to remediation while the LT and B/C technologies are ex-situ processes. The nine in-situ plots will each be operated and monitored for the full three year period. For each ex-situ technology, three plots will be excavated each year and placed into three above-ground cells for 48 weeks of enhanced biotreatment. After that time, the cells will be unloaded and soil from three other plots will be excavated and loaded into the cells. In this fashion, after three years, each technology will be replicated and evaluated nine times to facilitate comparative performance assessments. The extension will allow the contractor to complete the current evaluation cycle which began 6/1/00 and will run through May, 2001. A new contractor will assume responsibility for conducting the third evaluation cycle. During the extension, the contractor will maintain the test cells, collect samples, perform laboratory analyses, prepare the test cells for the next evaluation cycle, and prepare reports of the test results for the evaluation cycle. The extension will run from 10/1/00 through 8/31/01. This period includes submission of all reports. During this period the estimated level of effort will be 7,000 hours. Companies that feel they can perform the requirements within the time restrictions while assuring the quality and validity of data can submit their qualifications which will be evaluated. Responses must be received no later than fifteen days after publication of this synopsis. Posted 07/11/00 (W-SN473218). (0193)

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