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r <br /> Table 4 <br /> c� <br /> Flow Rates and Analytical Results of Air Samples <br /> ARCO Service Station No. 2168 <br /> 441 West Charter Way, Stockton, California <br /> Flow Rate Sample Lab Sample Analyses(mg/m) <br /> Date (cfm) Location Number TPHG Benzene Toluene Ethylbenzene Xylenes <br /> 1/24/97 24 Influent P9702357-1 55,000 980 1400 200 890 <br /> Effluent P9702357-2 180 <0 16 <0 19 <0 22 <0 22 <br /> 2/20/97 49 Influent 5970221-1 14,000 370 960 120 590 <br /> Effluent S970221-2 30 <0 50 <0 50 <0 50 <1 00 <br /> 3/20/97 25 Influent 59700501-1 14,000 190 950 120 770 <br /> Effluent 59700501-2 <20 00 <0 40 <0 40 <0 50 <0 90 <br /> 4/16/97 35 Influent 59700685-2 11,000 50 880 200 1300 <br /> Effluent S9700685-2 <20 00 <0 40 <0 40 <0 50 <0 90 <br /> 9/9/97 34 Influent S9701747-1 17,000 34 190 180 1800 <br /> Effluent S9701747-2 t <250 0 <50 0 <50 0 <50 0 <150 0 <br /> <=Below detection limits used by laboratory <br /> Results in milligrams per cubic meter <br /> TPHG=Total petroleum hydrocarbons as gasoline <br /> cfm=Cubic feet per minute <br /> R=Not requested <br /> NWSW 8051114WO61796MI xls Rev 0 11/5/97 <br />