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compounds,but have not reduced MTBE to acceptable levels. <br /> iRecommended Technology for This Site <br /> Due to the success of Activated Carbon filtration for the removal MTBE and Benzene from groundwater <br /> on other sites in the Lodi area,this technology is proposed for the pump and treat remediation ofthis site. <br /> The Proposed Filtration Plant Design <br /> USfilter's Westgate division has proposed the use of three ASC-2000 Carbon Filter units connected in <br /> series to handle the filtration requirements,of this pump and treat system. These filters are designed to <br /> process 10 to 25 gpm of effluent,with the above stated analysis,to non detect level.A sample monitoring <br /> point will be installed before and after the Activated Carbon filters. <br /> A submersible extraction pump would supply the required hydraulic head to operate the extraction well, <br /> carbon filter,and conveyance to the storage tank(see Fig. 1,below). A 21,000 gal. portable Baker tank <br /> will be positioned in the parking lot to the north of the existing driveway and serve as clean water storage <br /> (see plan of Filtration Plant attached). <br /> A i"PVC discharge line will be placed in a 2"wide by 6"deep trench in the driveway asphalt surfacing. <br /> Backf 11 ofthe trench will he with paving asphalt to the finish surfacing grade. An 1"discharge hose wilt <br /> be required for the connection to the Baker tank. Discharge from the Baker tank to the tanker truck will <br /> be by 4" suction hose to a 4" pump with a discharge hose. <br /> • <br /> EA.MOD.ASC-2000 FILTERS CONNECTED IN SERIES <br /> STING UNDER PAVEMENT CONDUIT 4141'PVC EFFLUEI4 E NDER PAVEMENT V PVC DISCHARGE E <br /> rg <br /> XISTINO PA PUMP CONTOL PAN <br /> _DRIVEWAY <br /> ELECTRICAL TO PUMP FLOAT SWJ <br /> -Tifir <br /> mmw�m <br /> EXISTING UNDERGOUND EQUIPMENT VAULT <br /> WITH EXISTING ELECTRICAL SERVICE <br /> ZLMPELECTTR11CAL IN EXISTING CONDUIT <br /> EQUIPMENT LIST_ <br /> pp1.3 EA.ASO-2��00�00�0yy��UgS�FgIIµLLT��ER AggC�TTIVpA�TMED�CA�RRBBON FILTERS <br /> 3,1 EA:PUMP ELEC`%T&%FEEL%&Pi=MMOL SWTGHIN0 <br /> 4.1 EA.21.000 COAL PORTABLE RAKER TANK. <br /> • I <br /> Fig. 1 <br /> 3 <br />