U. S. Environmental Protection Agency, Contracts Management Division (MD-33), Research Triangle Park, NC 27711

A -- REDOX CHARACTERIZATION OF SEDIMENTS. SOL KZ7018 POC Karen Z. Gibson, Contract Specialist (919)541-4556 E-MAIL: Click here to contact the Contract Specialist via e-mail., gibson.karen@epamail.epa.gov. The U.S. Environmental Protection Agency, National Exposure Research Laboratory, Ecosystems Research Division located in Athens, GA has a requirement for sediment and aquifer samples to be collected and characterized with respect to their redox conditions. The goal of this project is to develop predictive models for the reductive transformation of organic chemicals and the speciation of the metals in anoxic systems. The pore waters of these materials will be analzyed for key redox indicators including terminal electron acceptors and dissolved organic matter (DOM). Solids materials will be analyzed for the reactive forms of Fe(II) and Fe(III). The results of these studies will be correlated with reaction rates measured by EPA for the reductive transformation of a series of probe chemicals in duplicate sediment and aquifer samples. It is anticipated that the solicitation will be issued on or around October 21, 1997 and that quotations will be expected 15 days after issuance. This RFQ will be carried out under the Simplified Acquisition Procedures. The period of performance shall be 12 months from the date of award. All interested parties may obtain a copy of the solicitation by submitting a request. No telephonic requests will be honored. (0279)

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