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M Ta 1 Soil Vapor Extraction and Treatment System Performance Data The Transmission Shop 515 West Charter Way Stockton, California Field TPH as Gasoline Benzene FID Reading Influent otential Daily Influent Daily Hour Meter System Blower Flow Rate Total System T Concen- Removal Net Removed Concen- Remova Net Removed Sample Date Reading Percent Vacuum t Mamfol Flow Rate Influent Effluent tration Rate Removed* to Date tration Rate emoved to Date ID Sampled (hours) Operationa ("H2O) (scfm) (scfm) (ppmv) (ppmv) (mg/m3) (lbs/day) (pounds) (pounds) (mg1m3) (lbs/day) (pounds) (pounds) INFL 01/31/00 2,373 a NA NA NA 37 4,800 1,200 4,910 16 b 0 0 155 005 0 0 INFL 02/03/00 2,375 a NA NA 12 15 2,000 800 4,690 7 b 1 1 <2 50 001 0 001 0 001 INFL 03/08/00 2,851 58 760 NA 43 600 18 1 8,100 25 493 493 295 001 021 021 INFL 03/13/00 2,971 *****System down,awaiting beating coil and high temperature air valve shaft repairs***** INFL 04/21/00 2,975 a NA 520 43 43 ****System repair and restart**** INFL 04/24/00 3,039 88 500 57 47 1,500 85 7,900 34 267 760 <2 50 001 009 030 INFL 05/01/00 3,206 100 540 NA 53 700 8 4,650 30 207 967 <2 50 001 008 038 INFL 06/05/00 3,717 61 280 36 31 3,000 800 4,810 13 284 1,251 <0 500 000 009 047 REPORTING PERIOD Apn11,2000 through June 30,2000 TOTAL ESTIMATED POUNDS REMOVED FROM JANUARY 31,2000 THROUGH,BINE 30 2000: _ 1,422 053 'TOTAL GALLONS REMOVED FROM JANUARY 31,2000 THROUGH JUNE 30,2000 233 007 POUNDS REMOVED FROM APRIL 1 THROUGH JUNE 30,2000;- � i,iZB 038 s GALLONS REMOVED FROM APRIL 1 THROUGH JUNE 34,2000 185 1 0 05 AVERAGE FLOW RATE FROM APRIL IYTHROUGH JUNE 30 - � � 43 i PERCENT OPERATIONAL FROM APRIL 1 THROUGH JUNE 30: 65% € m TPH =Total petroleum hydrocarbons a System startup "H20 =Inches of water b Removal rate calculation is based on the total system flow rate measured at the inlet of the system scfm =Standard cubic feet per minute Total system flow rate accounts for the flow atter dilution lbs =Pounds c System shut down to confirm effluent concentrations ppmv =Parts per million by volume Density of benzene=7 34 pounds per gallon NA =Not available or not applicable Density of gasoline=6 1 pounds per gallon * Since last hour meter reading I N Iconsulting\data\shared\prolects\xls\8800391A\O81ODOm2 As 08110!2000