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C��afugicaC7ecFinics Inc. �"� ti..! Page 3 ' Former Moresco Property-IRAP Project No. 251.3 April 8, 1997 v connected to the treatment unit if this becomes necessary. See Figure 4 for a schematic of well construction. 2.3 Pipe Connections �- It is proposed that the vapor extraction and treatment system unit (VETS - a blower and thermal oxidizer) be placed near VEW-1 for the purpose of maximum cost effectiveness of installation and operation. Due to the proximity of VEW-1 to the treatment unit, it will be connected to the treatment unit by short sections of above ground PVC piping. The treatment unit will be located within a secured fenced area (Figure 2). The pipe run will be equipped with a control valve in order to control air flow and possible reversal of the air flow through the soil. Air intakes and exhaust stacks will be designed to prevent the entry of foreign matter. 2.4 Blower The air may be extracted using a positive displacement rotary vane blower with a capacity of approximately 250 scfm at a vacuum of 14 inches of Hg column. The blower is powered by a 7.5 horsepower 3 phase electrical motor. The extracted air first passes through a liquid knock-out unit and a fabric filter to protect the blower against rapid wear from high humidity air sediment particles coming from the extraction wells. Entrained water will be condensed and collected in a water knock-out drum. Collected water will be containerized in DOT approved drums, labeled, and stored on site inside of the fenced f6w enclosure. The water may be treated on site and disposed of properly. 2.5 Emissions Treatment System The emissions will be treated using a thermal oxidizer (TO). Compressed propane gas will be used as an auxiliary fuel source for the thermal oxidizer. Figure 3 is a schematic of the treatment unit. Specification of the TO are enclosed in Appendix B. 2.6 Installation An Authority to Construct Permit by the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD) will be secured once this work plan has been approved. When the VETS has been installed and is able to operate a SJVUAPCD inspection will be called for in order to obtain a permit to operate. t. 2.7 Operation �. After the system is permitted and is operating, a radius of influence test will be performed and an Installation and Effectiveness Report will be prepared that will describe all installation activities, initial testing, monitoring schedule, and anticipated completion date. A proposed monitoring schedule is as follows: • Weekly for the first month with monitoring of the influent and effluent by a hand held Organic Vapor Meter(OVM). 'a • After the first month, monitoring of influent and effluent by OVM on a twice monthly basis. a..