International DNAPL consortium

Federal agencies with common interests in Dense Non-Aqueous Phase Liquids (DNAPLs) remediation formed an Interagency DNAPL Consortium (IDC) to facilitate evaluation and deployment of mature DNAPL remediation technologies. This Consortium eventually involved five federal agencies, two national laboratories, more than six commercial companies, and two universities. GEO managed the Interagency DNAPL Source Remediation activities.This three year, $6 million project involved joint, side-by-side DNAPL remediation technology demonstrations combined with rigorous testing and comparison under field scale conditions. A launch complex in Florida was selected as the testing platform. It contained approximately 26,000 kg of free-product trichloroethene (TCE) near a rocket-engine cleaning facility. Technologies that were selected for comparison testing were in situ oxidation, six-phase heating, and steam-enhanced extraction. Six innovative characterization technologies were also tested and evaluated.This program represented the first successful, uncontrolled, side-by-side, full-scale testing and evaluation of in situ remediation technologies in the United States.