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Table 6 <br /> Soil Vapor Extraction Mass Removal Results-TPHg <br /> Tidewater Stockton <br /> 666 West Weber Avenue <br /> Stockton, California <br /> Process Process TPHg Total TPHg <br /> Operating Flow Concentration Removal Mass <br /> Time Rate [TPHg] Rate' Removed <br /> Date/Time (hours) (scfm) (ppmv) (Ib/day) (lb) Notes <br /> GWE-1 is the Extraction Well <br /> 11/17/1010:30 0.00 -- -- 0.00 0.00 1 <br /> 11/17/1011:16 0.77 113.0 58 2.10 0.07 1 <br /> 11/17/1012:10 0.90 107.1 -- 2.68 0.17 1 <br /> 11/17/1012:30 0.33 110.7 -- 3.27 0.21 1 <br /> 11/17/1013:00 0.50 174.0 -- 4.28 0.30 1 <br /> 11/17/1014:01 1.02 154.7 - 4.94 0.51 1 <br /> 11/17/1015:00 0.98 149.2 -- 4.57 0.70 1 <br /> 11/18/10 8:15 17.25 135.1 -- 4.27 3.77 1 <br /> 11/18/10 8:30 0.25 136.1 -- 4.08 3.81 1 <br /> 11/18/10 9:00 0.50 136.0 130.0 4.87 3.91 1 <br /> 11/19/10 9:15 0.00 98.7 -- 4.88 3.91 1 <br /> 11/19/10 9:30 0.25 114.2 -- 4.43 3.96 1 <br /> GWE-2 is the Extraction Well <br /> 11/18/10 9:15 0.00 78.00 -- 0.00 0.00 1 <br /> 11/18/10 9:30 0.25 119.20 86 3.28 0.03 1 <br /> 11/18/1012:45 3.25 148.90 -- 3.32 0.48 1 <br /> 11/18/1013:00 0.25 140.20 -- 3.19 0.52 1 <br /> 11/18/1013:30 0.50 144.50 3.14 0.58 1 <br /> 11/18/1014:00 0.50 143.10 3.17 0.65 1 <br /> 11/19/10 8:07 18.12 140.70 -- 3.13 3.01 1 <br /> 11/19/10 8:15 0.13 -- 52 2.72 3.03 1 <br /> System Statistics: GWE-1 GWE-2 Total <br /> Number of Hours in Test 22.8 23.0 45.8 <br /> Cumulative Results: <br /> Cumulative Pounds of TPHg Removed 3.96 3.03 6.99 <br /> Average TPHg Removal Rate(Ib/day) 4.03 3.14 7.17 <br /> Notes: <br /> 1 =Molecular weight of TPHg assumed to be 86 as hexane <br /> Abbreviations: <br /> TPHg =total petroleum hydrocarbons as gasoline <br /> GWE =groundwater extraction well <br /> hr =hours <br /> scfm =standard cubic feet per minute <br /> ppmv =parts per million by volume <br /> Ib =pounds <br /> Ib/day =pounds per day <br /> -- = not measured or not sampled <br /> Page 1 of 1 <br />