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Table 19 Soil Vapor Extraction System-Soil Vapor Influent Analytical Data and Mass Recovery Parcel 2A-L&M OU 666 West Weber Avenue,Stockton,CA (In order to show best estimate,recovery calculations assume one-half of the detection limit when the compound is reported as less than the detection limit.) Influent Concentrations TPHg Recovery TPHd Recovery LBenzene Recovery MtBE Recovery Period Period Period Period Hour Meter Well Field Well Field Recovery Net Cumulative Recovery Net Cumulative RecovNet Cumulative Recovery Net Cumulative Date Reading Flow Rate temp TPHg TPHd Benzene MtBE Rate Recovery Recovery Rate Recovery Recovery Ratecovery Recovery Rate Recovery Recovery Sampled Sample ID Notes (hours) (scfm) 'F) (ppmv) (ppmv) (ppmv) (ppmv) (lbs/day)[1] (Ibs)[2] (lbs)[3] (Ibs/day)[1] (Ibs)[2] (Ibs)[3] (Ibs/daIbs)[2] (Ibs)[3] (Ibs/day)[1] (Ibs)[2] (lbs)[3] 10/27/2011 SV-INF3 e 30,381.2 145.0 65.0 70 0.26 <0.050 <0.10 1.7 38.3 4,195 0.077 1.76 3.45 0.001 0.022 2.883 0.002 0.049 5.784 11/15/2011 SV-INF3 30,834.2 54.0 62.0 69 1.7 <0.050 <0.10 2.6 49.8 4,245 0.091 1.72 5.17 0.001 0.015 2.897 0.002 0.033 5.818 12/15/2011 SV-INF3 31,553.5 50.6 53.2 46 <0.050 <0.10 1.1 34.4 4,279 5.17 0.000 0.012 2.910 0.001 0.028 5.845 1/19/2012 SV-INF3 32,392.9 63.7 52.5 17 <0.050 <0.10 0.7 24.0 4,303 5.17 0.000 0.016 2.925 0.001 0.035 5.881 2/28/2012 SV-INF3 33,352.3 89.9 61.8 17 <0.050 <0.10 0.5 19.9 4,323 5.17 0.001 0.024 2.949 0.001 0.054 5.935 3/16/2012 SV-INF3 33,762.1 67.2 64.5 28 <0.050 <0.10 0.7 11.5 4,335 5.17 0.001 0.010 2.960 0.001 0.024 5.958 4/20/2012 SV-INF3 34,176.9 401.3 65.3 69 <0.050 <0.10 4.3 74.9 4,410 5.17 0.002 0.032 2.991 0.004 0.071 6.030 5/8/2012 SV-INF3 34,605.9 475.0 69.7 <5.0 <0.050 <0.10 6.0 106.7 4,516 5.17 0.003 0.061 3.053 0.008 0.138 6.168 6/22/2012 SV-INF3 34,830.7 451.4 71.7 29 <0.050 <0.10 2.8 26.1 4,542 5.17 0.004 0.034 3.087 0.008 0.077 6.245 7/12/2012 SV-INF3 35,309.2 496.0 76.5 <5.0 <0.050 <0.10 2.8 56.7 4,599 5.17 0.004 0.074 3.161 0.008 0.167 6.412 8/15/2012 SV-INF3 35,579.6 512.4 78.7 <5.0 <0.050 <0.10 0.5 5.4 4,605 5.17 0.004 0.044 3.205 0.009 0.100 6.512 9/21/2012 SV-INF3 36,230.8 207.3 66.0 <5.0 -- <0.050 <0.10 0.3 9.3 4,614 -- -- 5.17 0.003 0.076 3.281 0.006 0.172 6.684 10/19/2012 SV-INF3 RPM 36,548.1 270.0 74.2 10 <0.050 <0.10 0.6 7.5 4,621 * 5.17 0.002 0.025 3.306 0.004 0.056 6.740 11/28/2012 SV-INF3 37,389.8 138.5 60.0 <5.0 <0.050 <0.10 0.5 17.1 4,638 5.17 0.002 0.056 3.362 0.004 0.126 6.867 12/21/2012 SV-INF3 f 37,447.1 -- -- 4,638 5.17 3.362 6.867 REPORTING PERIOD: September 21,2012 to December 21,2012 Period Pounds Removed[4]: 24.6 -- 0.081 0.182 Period Gallons Removed[5]: 4.0 -- 0.011 0.029 Total Pounds Removed[6]: 4,638 5.17 3.362 6.867 Total Gallons Removed[7]: 760 0.72 0.458 1.11 Definitions: --Data not available <=Value is less than laboratory reporting limit lbs=Pounds MtBE=Methyl tert-butyl ether NA Not applicable NS Not sampled or not analyzed ppmv=Parts per million by volume scfm=Standard cubic feet per minute TPHg=Total petroleum hydrocarbons as gasoline TPHd=Total petroleum hydrocarbons as diesel Notes: a=System permitted under ATC number N4878-2-0. Source test for air board. b=Flow rate(acfm)derived from Roots 59 curve with temperature being the average for the system. c=Diesel analyzed by Air Toxics LTD via EPA Method TO-17. d=Diesel sample collected on 9/22/11 e=Diesel sample collected on 10/28/11 f=System shutdown due to combustion blower malfunction on December 7,2012. System left off pending repairs;samples unable to be collected. Kiff Analytical Molecular Weights: Air Toxics Molecular Weights: Specific Weight: TPHg=102 g/mol TPHd= 233 g/mol Specific Weight of TPHg =6.1 pounds per gallon Benzene=78 g/mol Specific Weight of benzene =7.4 pounds per gallon MtBE=88 g/mol Specific Weight of MtBE =6.18 pounds per gallon Specific Weight of Diesel =7.18 pounds per gallon Equations: [Average of consecutive concentrations(ppmv)] Recovery Calculations= ---------------- --------------------------------- -------------------- X[Molecular Weight(g/mole)]X[1 Ibs/453.59 g]X[1.2641 moles/1 cf]X[Average of consecutive Flow Rates(scfm)]X[60 min/hr]X[24 hr/day]=XX.XXX Ibs/day [1,000,000 parts] I:\Tidewater\TW Stockton(P2A)\Engineering\O&M\Tables\O&M Tables 2012\4Q12\Parcel 2A OM Tables 4Q12.xlsx Page 2 of 2