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T <br /> vapors will be by activated carbon adsorption. VET proposes to use three <br /> 2000 pound net activated carbon adsorption reactors in series to adsorb all <br /> of the gasoline constituents from the extracted well vapors prior to venting <br /> these vapors to the atmosphere. <br /> The vapor extraction system will be permitted by variance and as a modified <br /> system under full permit in accordance � with the San Joaquin County Air <br /> Pollution Control District. The variance application ,will be submitted <br /> prior to assembly of the vacuum blower systems, electrical wiring, and vapor <br /> treatment systems. <br /> VET will provide turn-key services to operate, monitor, and maintain the <br /> vapor extraction system. Following initial start-up operation of the <br /> system, VET will monitor and maintain the VES twice a month to verify the <br /> systems performance, monitor and adjust flows to each of the vapor <br /> extraction wells, modify the configuration' of the vapor extraction system, <br /> and to replace the activated carbon adsorption''systems as required. <br /> �s <br /> VET proposes eleven tasks to perform the work described above which are <br /> outlined below: <br /> Task 1 - Pre-field Site Activities <br /> 1.1 Prepare a detailed work plan. <br /> 1.2 Prepare a Site Health and Safety Plan. <br /> 1.3 Discuss the design and operation of the system with Southland <br /> personnel. <br /> TASK 2 - Modify Monitoring Wells and Manifold to VES <br /> 2.1 Cut, and remove asphalt for underground piping. <br /> 2.2 Install vapor conduit and re-compact fill materials. <br /> 2.3 Replace excavated asphalt with either.'concrete or asphalt. <br /> 2.4 Install traffic rated well boxes. <br /> 2.5 Modify well heads for vapor extraction)and install valves. <br /> Task 3 - Design the Vapor Extraction and Treatment System <br /> 3.1 Prepare design specifications for equipment. <br /> t: <br /> 3.2 Submit design of vapor extraction isystem 'to Southland personnel for <br /> review. <br /> VAPOR EXTRACTION TECHNOLOGY <br /> �i <br />