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Vapor Treatment System Mass Removal Calculations <br /> September 9 - December 9, 1994 <br /> Sample TPH-g Flowrate Mass Time Mass <br /> Date Concentration ( cfsm) ( )2 Removal Rate of Operation Removed <br /> (pprnv) (1) (lbs/day) (3) (days) (lbs) <br /> 09/15/94 35 105 09 7 6 <br /> 09/23/94 30 98 07 8 6 <br /> 09/29/94 30 98 07 6 4 <br /> 10/07/94 20 98 05 8 4 <br /> 10/11/94 80 154 30 05 2 <br /> 10/19/94 25 171 10 8 8 <br /> 10/27/94 20 156 08 7 5 <br /> 11/01/94 30 156 1 1 2 2 <br /> 11/04/94 65 181 29 — --- <br /> 11/11/94 15 208 08 7 5 <br /> 11/17/94 10 161 04 6 2 <br /> 12/02/94 1 181 00 10 0 <br /> 12/07/94 1 196 01 5 0 <br /> • Approximate Total Mass Removed = 46 <br /> gal - gallons <br /> TPH-g = total petroleum hydrocarbons-as-gasoline <br /> ppmv = parts per million by volume <br /> scfm = standard cubic feet per minute (at 6(P F and 14 7 psi) <br /> lbs/day = pounds per day <br /> (1) = measured with FID on blower discharge <br /> (2) = calculated from field measured air velocity reading <br /> (3) = removal rate derived from formula using the universal gas constant and 64 as the molecular weight of gasoline <br /> Groundwater Treatment System Mass Removal Calculations <br /> September 9 - December 9, 1994 <br /> Total Gailons Treated TPH-g Influent TPH-g Effluent Mass Removed <br /> (gal) 49/L) 9/L) (ibs) <br /> 519,602 51 <10 02 <br /> ug/L = micrograms per liter (parts per million) <br /> Ib = pounds <br /> 0102R044 202 GROUNDWATER <br /> MT TECHNOLOGY,INC <br />