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Fourth Quarter 2405 Groundwater Monitoring and Remediation Status Report <br /> Cohn Property 3755 Munford Avenue,Stockton,California <br /> Page a <br /> Analysis Performed: <br /> Analysis Abbreviation Designation USEPA Method No <br /> Total Petroleum Hydrocarbons Fuel-Range <br /> as Gasoline TPHg Hydrocarbons <br /> 801 SM <br /> Benzene <br /> Toluene BTEX Aromatic Volatile 8021B <br /> Eth (benzene Organics <br /> Xylenes (Total) <br /> Tertia Butyl Alcohol TBA <br /> Methyl Tertiary But I Ether MTBE <br /> Di-isopropyl Ether DIPE Seven Fuel <br /> Ethyl Tertiary But I Ether ETRE Oxygenates 8260B <br /> Tertiary Amyl Methyl Ether TAME <br /> Methanol <br /> Ethanol <br /> Modifications from Standard Monitoring Program: <br /> I <br /> None <br /> REMEDIATION SYSTEM SUMMARY <br /> Soil Vapor Extraction System Description <br /> The remediation system is a 250 standard cubic feet per minute (SCFM), soil vapor extraction <br /> (SVE) system with a thermal/catalytic oxidizer as an emission control unit A 7 5 horsepower <br /> (hp), positive displacement blower extracts soil vapors from the subsurface at a maximum <br /> vacuum of 12" of mercury(Hg) The system is currently operating in thermal mode and utilizing <br /> three vapor extraction wells, VEW-1, VEW-2 and VEW-3 The emission control operates at a <br /> maximum of 0 5 million British Thermal Units (BTUs) per hour The trailer mounted SVE <br /> system is manufactured by Solleco Environmental Equipment of Anaheim, California The SVE <br /> system and control device are permitted with the SJVAPCD and operating under the "Authority <br /> to Construct"number, N-5817-1-0 - <br /> System startup date: September 2, 2005 <br /> Current system mode: Thermal operation since startup <br /> Active extraction wells: VEW-1, VEW-2 and VEW-3 <br /> Inactive extraction wells/reason: None <br /> i <br />