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[ [ [ [ t [ [ [ [ [ l [ [ t [ [ [ [ [ <br /> r <br /> Project No.58100.06-1IC <br /> December 17,1996 <br /> Page I of 1 <br /> TABLE 4 <br /> VAPOR EXTRACTION TEST FIELD AND ANALYTICAL DATA <br /> CALTRANS STOCKTON YARD MAINTENANCE FACILITY <br /> STOCKTON,CALIFORNIA <br /> PROCESS FLOW DATA VW-2 VACUUM RESPONSE DATA SOIL GAS ANALYSES <br /> (in H20) <br /> Time Flowrate Vacuum Temp Comments MW-1 VW-1 MW-3 Sample No. TPHg TPHg Mass <br /> (sefin) (in 11=0) (F°) (mg/m�) Extraction Rate <br /> (ppd) <br /> 1140 Initiate flow. <br /> 1145 54 47 104 0.2 0.4 0 <br /> 1215 52 48 96 0.7 0.3 0 <br /> 1245 SO 49 98 Sample MI 0.7 0.3 0 AS0815-INFI 101,000 454 <br /> 1300 50 49 98 0.7 0.3 0 <br /> Distance from VW-2(8.) 28 40 54 <br /> Notes: <br /> scfm -Standard cubic feet per minute TPHg = Total petroleum hydrocarbons reported as gasoline Sample Designation: Mass extraction rate= <br /> H2O -Inches of water column mg/m' - Milligrams per cubic meter AS0815-INFI scfm x TPHg(mglm')x 0.0000899 <br /> FO -Fahrenheit degrees ppd - Pounds per day AS =Air sample where 0.0000899-conversion <br /> 0815-Sample date factor for mass removal from a <br /> INFI=Influent air sample number per minute to a per day basis <br />