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6t`- <br /> Marding Lamson Associalas <br /> n l <br /> June 17, 1988 <br /> 4167,218.02 Jr., P.G. <br /> 114r. James M. Kerr, <br /> Exxon Company, USA <br /> Page 3 <br /> - Develop and sample the monitoring wells <br /> - Prepare report <br /> W Estimated cost: $10,000 to $20,000 <br /> Phase <br /> If review of data indicates that a release of contaminants from a tF-.,k or <br /> line leak, spillage, or other source has occurred: <br /> - Determine lateral and vertical extent of contamination <br /> Evaluate impact of contamination on soil and ground-water Quality <br /> - Evaluate remediation measures if warranted <br /> - Prepare report <br /> Estimated cost $50,000 to $100,000 <br /> Phase III <br /> If after the completion of Phase IX it is warranted tthe�ollowing ent optdions <br /> measures to comial <br /> ply with state and local regulations, <br /> are available: <br /> - Soil removal and disposal or treatment by aeration <br /> - In situ air venting <br /> - In situ bioremediation <br /> Ground-water extraction with treatment by carbon filtration, air <br /> stripping or bioremediation <br /> Estimated cost: $200,000 to $90D,000 <br /> Depending on site Cifdallothreenphasesaofoworksarets crequired, the ttotals <br /> $10,000. However, <br /> . <br /> estimated cost could range between $250,000 and $1,000,000 <br />