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TABLE 2 <br /> Soil Vapor Extraction = Vapor Influent Analytical Data <br /> Chevron Facility #92033 = Stockton Charter Way Commingled Plume Site <br /> 508 W Dr. Martin Luther King Jr. Blvd , Stockton, California <br /> Inf Influent TPHg B T E X MTBE <br /> Total Flow Concentrations Recovery Recovery Recovery Recovery Recovery Recovery <br /> Date <br /> Runtime Rate TPHg B T E X M Rate Period Total Rate Period Total Rate Period Total Rate Period Total Rate Period Total Rate Period Total <br /> (scfm) (ppmv) (lbs/day) (Ibs) (Ibs) (lbs/day) (Ibs) (Ibs) (lbs/day) (Ibs) (Ibs) (lbs/day) I (Ibs) (lbs) (lbs/day) (Ibs) (Ibs) (lbs/day) I (Ibs) (lbs) <br /> 3/14/13 7 165 510 4.8 5.6 2.5 7.9 1 . 1 29.82 8.70 8.70 0.23 0.07 0.07 0.32 0.09 0.09 0. 16 0.05 0.05 0.52 0. 15 0. 15 0.06 0.02 0.02 <br /> 4/26/13 554 80 11300 0.56 1 .8 2.2 9.3 <0.20 39.29 895.39 904.09 0. 10 2. 18 2.25 0.16 3.55 3.64 0. 11 2.60 2.65 0.42 9.51 9.66 0.03 0.60 0.61 <br /> Summary Period: April 2013 (March 14, 2013 through April 26, 2013) <br /> Minimum: 80 =00'.'56 .8 2.2 7.9 0.20 29.82 0. 10 0. 16 0. 11 0.42 0.03 <br /> Average: 1237 2.4 8.6 0.65 34.55 0. 16 0.24 0. 14 0.47 0.04 <br /> Maximum: 165 .6 2.5 9.3 1 .10 39.29 0.23 0.32 0. 16 0.52 0.06 <br /> Total Recovered Mass this Period (lbs): 895.39 2. 18 3.55 2.60 9.51 0. 60 <br /> Total Recovered Mass since System Start-Up (lbs): 904.09 2.25 3.64 2.65 9.66 0.61 <br /> Notes: <br /> - Concentration was assumed to be zero for analytes reported below laboratory reporting limit <br /> < = Below laboratory method reporting limit <br /> TPHg = Total petroleum hydrocarbons as gasoline <br /> B = Benzene <br /> T = Toluene <br /> E = Ethylbenzene <br /> X = Xylenes <br /> MTBE = Methyl tert-butyl ether <br /> scfm = Standard cubic feet per minute <br /> ppmv = Parts per million by volume <br /> lbs = Pounds <br /> Molecular Weights (based on Kiff Analytical LLC): Equations: <br /> TPHg: 95 g/mol <br /> Benzene: 78. 11 g/mol Ave . Conc . (ppmv) MWgas 28 . 317 L l lbs 60 mins <br /> Toluene: 92. 14 Mass Removed (lbs ) = x x x x Ave . flow (scfm) x x hours <br /> g/mol 1 ,000 ,000 24 . 1 (* ) W 453 . 592g 1 hour <br /> Ethylbenzene: 106. 17 g/mol <br /> Xylenes(total): 106. 17 g/mol <br /> MTBE: 88.15 g/mol Mass Removal Rate (lbs/day) = Mass Removed (lbs) 24 hours <br /> X <br /> 'Kiff Analytical LLC gas constant: Operating hours day <br /> 24.10 L/mole (Supplied by Kiff LLC, based on laboratory conditions) <br /> 92033 Remediation Workbook.xlsx 1 of 1 Stantec <br />