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. Vapor Treatment System Mass Removal Calculations <br /> March 3 - June 9, 1994 <br /> Sample TPW-g Removed Removal Rate Number Pounds <br /> Date (ppmv) (1) cfm (2) (lbs/day) (3) of I of O Day on Removed <br /> 03/10/94 50 112 136 7 952 <br /> 03/17/94 45 95 104 7 728 <br /> 03/24/94 39 78 74 7 518 <br /> 03/31/94 29 98 69 7 483 <br /> 04/07/94 29 88 62 6 372 <br /> 04/21/94 32 108 84 13 1092 <br /> 04/29/94 30 98 71 8 568 <br /> 05/12/94 40 83 81 14 1134 <br /> 05/19/94 50 98 1 19 7 833 <br /> 05/25/94 69 112 188 1 188 <br /> 05/31/94 50 105 128 5 640 <br /> 06/09/94 40 103 100 9 900 <br /> Approximate Total Mass Removed = 8408 <br /> TPH-g = total petroleum hydrocarbons-as gasoline <br /> ppmv = parts per million by volume <br /> cfm = cubic feet per minute <br /> lbs/day = pounds per day <br /> ** = cfm estimated at lowest measured flow rate during quarter for conservative estimated result <br /> (1) = measured with FID quantity on site at system influent and effluent <br /> (2) - calculated from field measured air velocity reading <br /> (3) = removal rate derived from formula using the universal gas constant and 65 as the molecular weight of <br /> gasoline TPM (lbs/day) = (0 000243)X (scfm) X(ppmv) <br /> Groundwater Treatment System Mass Removal Calculations <br /> March 3 - June 9, 1994 <br /> Total Gallons TreatedTPH-g Influent TPH-g Effluent Pounds Removed AI <br /> 533,263 140 <10 063 <br /> * = Formula concentration removed (Influent-effluent)X total gallons treated X conversion factors <br /> a g, 1 3� x 533,263 gallons x 3 841 x 116 = 0 63 Ib <br /> gallon 4 54(l 08)p g <br /> g/f = micrograms per liter (parts per million) <br /> lb = pounds <br /> 5516R024 020 UE <br /> GROUNDWATER <br /> TECHNOLOGY,INC <br />