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Third Quarter 2003 Groundwater Monitoring/Remediation Status Report <br /> Moore Petroleum Bulk Plant,5491 E Street,Banta,Califomia <br /> Page 5 q <br /> c � <br /> Modifications from StandardMonitoring Program: <br /> None r <br /> ' , • - �, �� ;l <br /> REMEDIATION SYSTEM SUMMARY <br /> Soil Vapor Extraction System <br /> System description: <br /> Gasoline:vapors are extracted from the subsurface through,three monitoring/vapo'r wells (VEW- <br /> 3/MW-8, MW-1, and VEW-4/MW-7) and two vapor extraction wells (VEW-l'and VEW-2). The- <br /> wells <br /> he wells are manifolded together with PVC piping in the remediation compound before'connecting <br /> to 'the extraction system;(Figure 2). The vapor extraction system is a King Buck®, 100 cfm, i <br /> catalytic oxidizer modelNo: MMC-5A, utilizing a positive-displacement blower,as a vacuum } <br /> source. <br /> System startup dater June 17, 2002 { <br /> Current system mode: ii Catalytic operation since startup. , <br /> Active-extraction wells:I VEW-1 through VE ' <br /> Inactive extraction wells/reason: MW-1 - <br /> Status of system operation during reporting.period/reasons for downtime: <br /> During this reporting period, from June 19, to September 25;`2003, the SVE system did not <br /> operate continuously. Accordin <br /> P y g to hour meter readings and field data, the system operated for <br /> 35.5 days. Since the hydrocarbon concentrations have declined, Apexhas begun a.two week on- } <br /> two week off-operating cycle to allow rebound to occur between on cycles. Power fluctuations <br /> also reported by the-station-personnel, and which caused some unplanned downtime. However, <br /> all influent .samples collected during this reporting period were non-detect; for .benzene <br /> concentrations and only 18w-TPHg concentrations were reported (Table 5). <br /> Table 5 summarizes extraction and emission .data from sampling events that are normally 1 <br /> performed at the beginning of each month. The flow. rates and analytical, data are used to <br /> calculate approximate pounds of hydrocarbons extracted. 'The SVE results are shown below. <br /> E. System performance totals: <br /> Pounds of TPH removed: .110 pounds (17.5 gallons) this quarter/ i <br /> 4,479 pounds (711 gallons) total <br /> Pounds of benzene removed: 0.0 pounds this quarter/1,4 pounds total <br /> ii _ n <br />