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Table 19 <br /> Apartment Soil Vapor Extraction System-Soil Vapor Influent Analytical Data and Mass Recovery <br /> Parcel 2A-L&M OU <br /> 666 West Weber Avenue,Stockton,CA <br /> Definitions: <br /> <=Value is less than laboratory reporting limit <br /> --=Data not available <br /> lbs=Pounds <br /> MtBE=Methyl tert-butyl ether <br /> ppmv=Parts per million by volume <br /> scfm =Standard cubic feet per minute <br /> TPHg =Total petroleum hydrocarbons as gasoline <br /> Notes: <br /> a =System permitted under ATC number N-4878-2-0. Source test for air board. <br /> Molecular Weights: Equations: Cones (ppmv� Molecular Weight Flow ft 3 60 min hour <br /> TPHg =102 g/mol 1 Recovery Rate lb = min (hourday <br /> )-24 <br /> ( ) <br /> Benzene 78 g/mol (day ) Vi ft 3 10 6 <br /> MtBE=88 g/mol <br /> Specific Weight: lb <br /> Specific Weight of TPHg =6.1 pounds per gallon Recovery Rate Hour Meter Reading t —Hour Meter Reading <br /> Specific Weight of benzene=7.4 pounds per gallon [2] Period Net Recovery (lbs)= day <br /> Specific Weight of MtBE =6.18 pounds per gallon . hour <br /> 2 <br /> day <br /> 3] Cumulative Recovery (lbs)_ Period Net Recovery lbs <br /> [4] Period Pounds Removed (lbs)= Reporting Period Net Recovery (lbs) <br /> [5] Period Gallons Removed (gallons) = Period Pounds Removed (lbs) <br /> Density (lb 1 <br /> g <br /> 6] Total Pounds Removed (lbs)=Cumulative Recovery (lbs) <br /> [7] Total Gallons Removed gallons )= Total Pounds Removed lbs <br /> Density ( lb 1 <br /> l gallon J <br /> V;d., = Volume of 1.0 mole of an ideal gas is 386.6 ft3 at 70°F and 29.92 inHg <br /> I:\Tidewater\TW Stockton(Parcel 2A-0415)\Engineering\O&M\Tables\O&M Tables 2010\3Q10\Parcel 2A OM Tables 3010.xlsx Page 2 of 2 <br />