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I APPENDIX I <br /> GROUND WATER PUMP-AND-TREAT VOLUME-MASS CALCULATIONS <br /> TOP FILLING STATION <br /> 101 South Wilson Way, Stockton CA <br /> 1) 06 December 2005 - 04 January 2006 <br /> IAssumptions <br /> • A total volume of 57,775 gallons was extracted from wells EW-1,EW-2,VW-1C,VW-2A <br /> I and VW-3A between 06 December 2005 and 04 January 2006(based on effluent flow meter <br /> observations) <br /> • Data collected from the pump and treat influent were representative of general extracted <br /> ground water conditions <br /> One gallon of water is equivalent to 3 79 liters (1), so the volume of processed water is given by <br /> V= (57,775 gallons)(3 79 [/gal)=213,1901 processed water <br />' Multiplying the volume of the processed water by the average of the December 2005 and the January <br /> 2006 TPH-g concentrations (33,000 µg/1) yields the approximate mass of TPH-g removed from <br /> processed water <br /> MTPH_g= (213,190 1)(0 000033000 kg/1)= 7.04 kg TPH-g <br /> A conversion factor of 2 205 lb/kgcan be used to convert kilograms f TPH- t f TPH- <br /> ogr o g o pounds o g <br /> MTPH_8= (7 04 kg TPH-g)(2 205 lb/kg) 15.52 lbs. TPH-g <br /> I <br /> Advanced GeoEnvironmental,Ina <br />