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1 <br /> concentrations in off-gases, resulting in minimal capital outlay compared to other off-gas <br /> abatement equipment Additional costs to the client would be incurred for permitting, <br /> purchasing and installing the vapor extraction equipment and treatment compound, and <br /> operation and maintenance of the system The cost of this alternative is estimated to be <br /> ' between $60,000 and $200,000 <br /> ' o Cnterion 5 <br /> This alternative should effectively remediate subsurface contaminants to acceptable <br /> 1 regulatory levels within 18 months of implementation <br /> ' O Cntenon 6 <br /> The long term effectiveness for soil remediation would be good depending upon the <br /> ' degree of contaminant removal If necessary, groundwater could be monitored <br /> periodically until soil is remediated to ensure that groundwater will not be adversely <br /> impacted <br /> ' o Cntenon 7 <br /> ' This alternative has some minor implementability problems due to the time involved in <br /> obtaining permits from the APCD for the vapor extraction system Permitting could take <br /> ' as much as 180 days dependant upon APCD work load, but is typically completed in 60 <br /> to 90 days <br /> ' o Cntenon 8 <br /> ' Impact to the businesses during installation and other site activities will be minimal This <br /> method has been shown to be effective in similar soil types and regulatory acceptance is <br /> ' expected <br /> 150047\REPOR*rSICAP 0694 FNL 15 <br />