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• • <br /> Table A-1 Page 2 of 2 <br /> Soil!Vapor Extraction System Performance Data <br /> ARCO Service Station#2093 <br /> 3425 Tracy Boulevard,Tracy,California <br /> TPH as Gasoline Benzene <br /> FID Influent Influent <br /> our Meter Blower Average Concen- Removal Net Removed Concen- Removal Net Removed <br /> Sample Date Reading Vacuum Flow Rate Influent Effluent tration Rate Removed to Date tration Rate Removed to Date <br /> ID Sampled (hours) ( H2O) (scfm) (ppmv) (ppmv) (ppmv) (lbs/day) (pounds) (pounds) (ppmv) (lbs/day) (pounds) (pounds) <br /> INFL 12/31/97 7,847 a 40 65 180 95 180 47 362 2,748 -- -- -- -- <br /> INFL 5128198 7,847 60 40 4,000 0 390 62 00 2,748 180 02 00 0 <br /> I N F L 6111198 8,143 50 105 650 30 650 273 2068 2,955 -- 00 14 1 <br /> REPORTING PERIOD.05!28198 to 6111198 <br /> TOTAL POUNDS REMOVED: 2,965.2 14 <br /> TOTAL GALLONS REMOVED, 4949 02 <br /> PERIOD POUNDS REMOVED 2068 114 <br /> PERIOD GALLONS REMOVED 339 02 <br /> PERIOD AVG FLOW RATE 73 a €� <br /> PERIOD PERCENT OPERATIONAL 88% 3 <br /> scfm =Standard cubic feet per minute NS=Not sampled <br /> lbs =Pounds a Prior to April 1998 all data was collected and reproted by Brown and Caldwell <br /> =Not available or not applicable <br /> ND =Non-detectable above detection limit <br /> ppmv =Parts per million by volume <br /> TPH =Total petroleum hydrocarbons Density of benzene=7 34 pounds per gallon <br /> Density of gasoline=61 pounds per gallon <br /> 7G011-001-0108M Tables xIsITABLE 1 August 5,1998 <br />