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Ta"-2 <br /> i Soil Vapor Extractidwtem Emission Data <br /> ARCO Service Station#2093 <br /> 3425 Tracy Boulevard,Tracy,California <br /> TPH as Gasoline Benzene <br /> Effluent Effluent <br /> Hour Meter Blower Average Concen- Emission Destruction Concen- Emission Destruction Is System <br /> Sample Date Reading Vacuum Flow Rate tration Rate Efficiency tration Rate Efficiency In Compliance <br /> ID Sampled (hours) ("H2O) (scfm) (ppmv) (lbs/day) (percent) I (ppmv) (lbs/day) (percent) with AQMD <br /> ppmv =Parts per million by volume a =Prior to April 1998 data was collected and reported by Brown and Caldwell <br /> lbs =Pounds b =TPH-g and benzene concentrations reported as ND are taken as 0 ppmv for calculation purposes <br /> Not applicable or not analyzed c =system effluent from field FID readings <br /> TPH = Total purgeable hydrocarbons AQMD =Air Quality Management District <br /> "H2O =Inches of water <br /> K 1WprocassUS 8P ARM020935Quarterly5t QTR 0312493 O&M TaWesl= Page 3 of 3 <br />