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CALCULATIONS <br /> Beacon Station No 695 <br /> 940 South Cherokee Lane <br /> Lodi, California <br /> Purpose: <br /> To provide example calculations of total petroleum hydrocarbon(TPH) as gasoline extracted from the soil and emitted to <br /> the atmosphere by the soil vapor extraction system <br /> Assumptions: <br /> A Assumes worst case TPH as gasoline concentrations remain constant throughout course of system operation <br /> Method: <br /> 1) Extraction <br /> TPH -- Q [TPHJ LBMOLE ( 16LB (1440 MIN) <br /> i r) 1x106 387Fr LBMOLE! l DAY <br /> Where TPI-11 is mass flow rate of TPH as gasoline in lbs/day extracted from soli <br /> Q is the inlet soil vapor process stream flow rate in standard cubic feet per mmute (scfm) <br /> [TPH], is the inlet concentration of TPH as gasoline m ppmv prior to the control device <br /> 2) Emission <br /> TPH, = toe [ P O6 1Mo77 (LB1M6LOBL <br /> E� <br /> Where TPI ,is mass flow rate of TPH as gasoline in lbs/day emitted to the atmosphere <br /> Q.is the effluent soil vapor discharge rate m scfm <br /> [TPHJ is the effluent concentration of TPH as gasoline in ppmv <br /> LRF033 CAC <br />