************************************************************* COST Estimated total treatment costs for remediation of 10,000 to 20,000 tons of PCB-bearing soil are listed below. Thermal Desorption $250-$450 per ton Vitrification $465 per ton Chemical Decomposition $210 per ton Solvent Extraction $200 to $300 per ton Solidification $30 to $50 per ton Soil Washing $300 per ton Many factors could result in cost estimates being higher than expected, including: low treatment objectives or high contaminant concentrations, stringent monitoring requirements, permitting costs, oil and grease, pH, high moisture content, high clay content, disposal of the treatment residual, and other factors. Accurate cost estimates can be obtained following site characterization and treatability testing. Source: USAEC, 1994, USEPA SITE publications and communication with technology vendors by MVA Consulting, Inc. *************************************************************