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A . <br /> rid <br /> • A <br /> gas will be fed to the catalytic incinerator for abatement <br /> by an electrically driven pumping unit. The extracted air <br /> stream will first enter a pre-heat section that contains -a <br /> gas burner. The pre-heated air stream will then enter a <br /> dual catalytic bed where oxidation of the hydrocarbon vapors <br /> will occur. Natural gas or propane will be used as fuel for <br /> the catalytic incinerator. A 230 volt, single phase <br /> electrical power source will be brought onto the site to <br /> provide electrical service to the system equipment. The <br /> catalytic incinerator, Pumping unit and the acc"mUlator/ <br /> water knockout device will be enclosed by chain link fencing <br /> for security Purposes. The specifications for the <br /> accumulator/water knockout device and the equipment layout <br /> are given in Details A-7 and A-8, respectively. <br /> SOIL VACUUM EXTRACTION 13ROG_RAM <br /> , . The soil vacuum extraction program will . <br /> proceed n four <br /> tasks. The tasks and associated time tocompleteinclude: <br /> 1gu <br /> Re latory Authorization and' Permitting," 30:to"60-,days; <br /> 2) system I7stallation, 21 days; 3) Equipment Installation, <br /> 1 <br /> 10 days; -nd 4) Operation and Maintenance, 6 to 12 months. <br /> REGULATORY AUTHORIZATION AND rERMITTING <br /> Hydrocarbons will be removed from the soil during the vacuum ' <br /> extraction i. <br /> . process. If=the `concentra��.an of hYdracArb�ons <br /> the ,extracted'°air' stream"-exceeds emission levels°<established <br /> by:the: county:. reguJlator} agency,- the'; hydrocarbons' will..:be <br /> abated before-the air stream: is.disbursed :to::the atmosphere; <br /> €.. Although the level of hydrocarbons emitted will be within <br /> regulatory standards, authorization from the count <br /> regulatory agency is required to ensure public safety. EVAX, <br /> Technologies; ,Inc- ,Will ,obtain .the= necessary:;-air permits <br /> fru-m the San Joaquin Air Pollution Control Distrit. <br /> i� <br /> SYSTEM INSTAL'IATION <br /> Field Installation <br /> Trenches will. be du p p <br /> design. The temporaryand <br /> es .laid according to the system <br /> driven vacuum extraction probes will be <br /> Pneumatically into the soil at the locations and to . <br /> the depths specified in the design. The probes will be <br /> connected to the piping and the piping will be connected to <br /> the Manifold. The <br /> Aj <br /> connected b groundwater monitoring wells will be <br /> y pipes to the manifold. The manifold will then <br /> be piped to the equipment area. <br /> i <br /> F . <br /> YT <br />