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reserve in case of breakthrough), direct read flow meter, and influent and effluent sampling ports for each carbon canister. Initially, each of the SVE wells will be tested individually to evaluate (1) the flow rate range for various applied vacuums,( 2)the initial and final VOC concentrations from each well, and(3) radius of influence and other flow characteristics of the extraction zone. We anticipate that performance of the pilot test will take approximately forty five (45) days to test all eight SVE well configurations. Figure 11 shows the planned locations of the proposed shallow and deep SVE wells. 7.3.2 Description of SVE Treatment Process The soil-vapor remedial equipment consists of a blower and granular carbon activation beds. A schematic representation of the treatment system is presented in Figure 15. Air will be extracted from each well and piped to a manifold within the vapor treatment system area. The flow from each well can be measured and regulated at the manifold. The vapor streams will be directed through a gas-liquid separator,which will remove condensed liquids. The vapor will then enter the blower (i.e., the vacuum pump), which will provide the motive force for the vacuum upstream of the blower and compression of vapor downstream of the blower. From the blower,the vapor stream will pass through eight carbon canisters piped in series,then to a discharge stack. The size of the carbon units and the capacity of the blower will be determined based on the results of the pilot test program. The blower system will include a dilution air inlet and a recycle loop for increased operational flexibility. The adjustable air inlet valve will allow ambient air to be drawn into the blower system inlet to dilute vapor extracted from the SVE wells.A particulate air filter will be positioned upstream of the blower to remove particulates from the dilution air stream. M ain\D:AEnvironmenta1\LN CV\10152007.wpd 52