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Working To Restore Nature <br /> 5.1.1 Vapor Extraction System Treatment Processes <br /> ' Subsurface piping will direct extracted vapor from the wells to a catalytic oxidizer or internal <br /> combustion (I.0 )engine located at the remediation compound. Components of the VES located <br /> ' in the remediation compound will include the following: a vapor extraction blower that will <br /> extract vapor from the wells through the subgrade piping; a flow indicator that measures <br /> ' extracted flow; a condensate separator to remove entrained droplets of moisture; a catalytic <br /> oxidizer or I C. engine, associated piping, control valves, instrumentation and controls; a remote <br /> monitoring system to transmit the status of process variables and any alarm or upset conditions, <br /> and a fenced remediation compound to preclude public access. <br /> 1 <br /> A 100 cfm catalytic oxidizer or I C. engine remediation unit is proposed to abate hydrocarbon <br /> ' vapors extracted from the vapor extraction wells. The unit will be replaced with an activated <br /> carbon adsorption system when influent hydrocarbon concentrations decrease to levels that make <br /> it cost effective and safe to install a carbon system. <br /> ' 5.2 Groundwater Remediation System <br /> ' 5.2.1 Groundwater Extraction <br /> ' The proposed groundwater extraction system will utilize recovery well RW-I A groundwater <br /> ' pump will be installed in well RW-1 and pumping will initially occur at a rate of approximately <br /> 3.5 gpm Following several months operation, evaluation of the capture zone of the extraction <br /> ' well will be performed. Based on tins evaluation, additional extraction wells may be proposed <br /> 1 <br /> 1 <br /> 38009-8 98009-8 F" 12 <br /> 1 <br />