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Mr. Dave Lewis <br /> October 13, 1986 <br /> Page 4 <br /> limited disruption to existing businesses by system installation; <br /> in-situ treatment as opposed to disposal at a landfill facility; <br /> and potential for use as infiltration wells in future water <br /> remediation programs, if necessary. <br /> Research indicates controls on the vapor system effluent, <br /> such as vapor phase carbon adsorption or catalytic incineration, <br /> will be required by the Air Regulatory Agencies. The initial <br /> control system would likely employ carbon until background <br /> information to assess the cost effectiveness of catalytic <br /> incineration can be developed. A preliminary installation and <br /> operational cost estimates for a comprehensive soil venting <br /> system are outlined below. <br /> Option 2 <br /> Vapor System Installation . . . . . . . .". . . . . . . . . . . . . . . . .25,000.00 <br /> System Design and Permitting . . . . . . . . . . . . . . . . . . . . . . .5,500.00 <br /> Professional Services. , . . . 4,500.00 <br /> TOTAL $35,000.00 <br /> Monthly Cost <br /> Vapor System Control (carbon) . . . . : . . . . . . . . . . . . . . . . .2,800.00 <br /> System Monitoring and Maintenance . . . . . . . . . . . . . . . . . .1 ,200.00 <br /> TOTAL $4,000.00 <br /> Option 3. Water Filtration - The injection of clean water into <br /> the contaminated soil horizon would act to flush the hydrocarbon <br /> contamination from the soils. This recharge of fresh water would <br /> have to coincide with nearby pumping of groundwater to form <br /> a closed loop soil treatment system. The injection of water , <br /> either imported or pumped groundwater which has been treated, <br /> could be accomplished by either infiltration well points or by an <br /> f infiltration gallery in the vicinity of the leak point. ' . <br />