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Table 4 <br /> Analytical Results of Soil Vapor Treatment Analysis <br /> Arco Service Station No. 548 <br /> 1612 Hammer Lane,Stockton, California <br /> Blower Flow Rate Blower Inf.Press. Sample Analyses(ppmv) <br /> Date (scfm) (in H20) Location <br /> TPHg Benzene Toluene Ethylbenzena Xylenes MtBE <br /> 10/20/03 54.00 10.5 INF Cat Air 220 <0.16 0.92 2.3 34 <0.56 <br /> EFF Air <2.8 <0.032 <0.026 <0.024 <0.024 <0.11 <br /> 11/18/03 42.30 8.0 INF Air 310 <0.08 <0.065 0.62 26 <0.28 <br /> EFF Air <2.8 <0.032 <0.026 <0.024 0.20 <0.11 <br /> 12/22/03 42.30 7.2 INF Cat Air 190 <0.16 1.0 0.35 10 <0.56 <br /> EFF Air <2.8 <0.032 <0.026 <0.024 <0.024 <0.11 <br /> San Joaquin Valley Unified Air Pollution Control District Permit#N-41241-0 Conditions are as follows: <br /> Either the VOC control efficiency shall not be less than 95%,or the total VOC emissions rate shall not exceed 2 pounds in any one day. <br /> The minimum operating temperature for the combustion chamber of the catalytic oxidizer shall be maintained at or above 600 degrees F. <br /> The total VOC emission rate from the soil remediation system served by the catalytic oxidizer shall not exceed 6.6 pounds in any one day. <br /> Notes: <br /> in H2O =Inches Mercury <br /> ppmv =Parts per million by volume <br /> MtBE =Methyl tert-butyl ether <br /> scfm =Standard cubic feet per minute <br /> TPHg =Total petroleum hydrocarbons as gasoline <br /> Please Note:Data starts at 4003 <br /> i <br /> b <br /> r <br /> K;1WprocesslJ5 BP ARC010054814 QTR 0410&M-4Qmr03 1 of 1 <br />