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1 1 I I 1 I 1 1 I I I I i I I 1 1 1 I <br /> TABLE 3 VAPOR EXTRACTION SYSTEM PERFORMANCE DATA, EXXON RS 7-0137, STOCKTON,CALIFORNIA <br /> Estimated <br /> Influent Concentration (pg/L) Pounds TPH-g <br /> Days Percent Flowrate TPH-g TPH-g Benzene Removed <br /> Date Operational Operational (CFM) Influent Effluent Effluent in Period* <br /> 11/13/95 NA NA 38 20,055 218 2 - <br /> 11/13/95 NA NA 38 21,110 289 3 0.00 <br /> 11/20/95 NA NA 38 5,278 95 1 315.59 <br /> 12/04/95 NA NA 38 3,518 60 0 210.39 <br /> 01/03/96 NA NA 38 2,392 42 0 302.96 <br /> 02/05/96 NA NA 38 1,500 13 ND 219.46 <br /> 03/04/96 NA NA 38 900 10 ND 114.81 <br /> 02/21/97 0 - NM 380 <5 <0.05 0.00 <br /> 02/27/97 6 100% 7 52 <5 <0.05 0.82 <br /> 04/04/97 35 97% 53 1,200 24 0.1 59.11 <br /> 05/06/97 17 53% 85 130 <10 <0.1 70.14 <br /> 06/04/97 29 100% 83 210 <10 <0.1 37.24 <br /> 07/02/97 28 100% 80.3 440 <10 <0.1 66.81 <br /> 08/11/97 40 100% 83 69 <10 <0.1 74.74 <br /> 09/11/97 31 100% 83 200 10 <0.1 31.12 <br /> 10/17/97 15 42% 97 51 <5 <0.05 15.23 <br /> 12/04/97 31 65% 79 DS <10 <0.1 12.51 <br /> 01/29/98 14 25% 83 280 <10 <0.1 16.88 <br /> 03/30/98 3 5% 83 <10 <10 <0.1 3.13 <br /> Total or Average 249 62% 1,551 <br /> •Est.Pounds TPH-g Removed in Period= Avg.Influent conc.(ug/L)•avg.flowrate(CFM)• 1440 min/day• 1 g/1,000,000 ug•0.002205 Ibs/g•28.32 Uft3. <br /> CFM-Cubic feet per minute pg(L-micrograms per titer <br /> NM-Not measured TPH-g-Total Petroleum Hydrocarbons as gasoline <br /> NA-Not available information SVE system operated by Fugm from 11/13/95 to 03/04/96 <br /> ND-Non detect DS -Tedlar bag was received deflated by laboratory,concentration assumed equal to 10/17/97 result for calculation <br /> f.\projects\70137\public\o\0137air.xis-Report Table <br />