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w L <br /> First Quarter 2005 Groundwater Monitoring and Remediation Status Report <br /> Moore Petroleum Bulk Plant,5491 F Street,Banta,California <br /> / Page 6 <br /> REMEDIATION SYSTEM SUMMARY <br /> Soil Vapor Extraction System <br /> System description: <br /> Petroleum vapors can be extracted from the subsurface through three monitoring/vapor wells <br /> (VEW-3/MW-8, MWA, and VEW-4/MW-7) and two vapor extraction wells (VEW-1 and VEW- <br /> 2). The wells are manifolded together with PVC piping in the remediation compound before <br /> connecting to the extraction system. The vapor extraction system is a 5-horsepower regenerative <br /> blower manufactured by Rotron-Ametek®Model number EN6F72L. Activated carbon <br /> adsorption abates the volatile organic compounds extracted by the SVE system. The system is <br /> operating under the authority of the SJVAPCD, Authority to Construct#N 560-8-2. <br /> System startup date: June 17, 2002 <br /> Current system mode: Carbon abatement (September 29, 2004) <br /> Active extraction wells: VEW-1 through VEW-4 <br /> Inactive extraction wells/reason: MW-1/system optimization, zero concentrations <br /> Status of system operation during reporting period/ reasons for downtime: <br /> The SVE system operated continuously during this reporting period, with the exception of <br /> January 20, 2005 site visit in which the water knockout drum filled to capacity, which shut the <br /> system down. According to hour meter readings recorded in the field the SVE system operated <br /> for a total of 76 days between December 16, 2004, and March 2, 2005. <br /> Vapor Analysis Performed: <br /> Ana! sis Abbreviation Designation USEPA Method No. <br /> Total Petroleum Hydrocarbons TPH Gas-Range <br /> as Gasoline g Hydrocarbons <br /> Benzene <br /> Toluene Aromatic <br /> Eth (benzene BTEX Volatile 8260B <br /> Xylenes (Total) Organics <br /> Methyl Tertiary Butyl Ether MTBE Fuel <br /> Oxygenate <br /> All effluent samples collected during this reporting period were reported as having no <br /> concentrations above laboratory detection limits, with the exception of the March 2, 2005 event <br /> in which total xylenes were reported as 0.20 parts per million by volume (ppmv). This <br />