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o Criterion 3 <br /> ' This alternative can be implemented within regulatory guidelines <br /> Criterion 4 <br /> ' This alternative would require sigmhcant capital outlays on the part of the property <br /> owner Capital costs are associated with installation of extraction wells and <br /> treatment systems, and could approach $300,000 to $500,000 Ongoing operation <br /> and maintenance costs could approach $30,000 to $50,000 per year <br /> r ' c Criterion 5 <br /> f The alternative should have an immediate impact on reducing the volume and. degree <br /> ' of contamination in the soil The impact on reducing the volume and degree of <br /> contamination in groundwater would require significant additional time <br /> ' o Criterion 6 <br /> The long term effectiveness for soil and groundwater remediation would be <br /> considerable depending upon the degree of contaminant removal The estimated <br /> timeframe to achieve cleanup is five to ten years <br /> 0 Criterion 7 <br /> i <br /> This alternative would have implementability problems due to the time involved in <br /> obtaining permits for the groundwater extraction system, system design and <br /> installation <br /> a Criterion 8 <br /> Impact to businesses during installation and other site activities would be minimal <br /> and should meet with public and regulatory acceptance <br /> 4.0 PROPOSED ALTERNATIVE FOR REMEDIATION <br /> ` 4.1 Soil Vapor Extraction <br /> t An evaluation of alternatives has shown Alternative 1 - Passive Remediation, Alternative 2 - <br /> Soil Excavation and Offsite Disposal, and Alternative 5 - Vapor Extraction and Groundwater <br /> ' Extraction to be less attractive for this site Ground Zero proposes to remediate <br /> F hydrocarbon-bearing soil beneath the site by installing and operating a vapor extraction <br /> system (VES) and continue groundwater monitoring to evaluate if impact to groundwater is <br /> declining If impact to groundwater is not declining sufficiently to satisfy regulatory agency <br /> K <br /> grnun&LE rocl.lcap 19 <br />