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Table 2 <br /> Vapor Extraction Test Monitoring Data <br /> ARCO Station No. 2130 <br /> 7906 North El Dorado Street, Stockton, California <br /> (December 30, 1991) <br /> Air Stream Conditions for Extraction Well VW-1 Observation well Data Vapor Sample collection and Analysts <br /> Time Air Air Air Vacuum OVA Vw-2 VW-3 VW-4 Vapor TPHg Benzene Toluene Ethyl- Total <br /> Velocity Flowrate Temp cont Vacuum Vacuum Vacuum Sample No Benzene Xylenes <br /> (fpm) (cfm) (F) (in H20) (ppmv) (in H20) (in H20) (tn H20) (mg/m^3) (mg/m^3) (mg/m"3) (mg/m"3) (mg/m^3) <br /> 10-00 4,750 104 61 67 9,500 0 04 0 84 0 50 NR NR NR NR NR NR <br /> 10 30 5,100 111 62 78 NR 0 04 0 84 0 51 AS-1230-INF1 43,000 1,500 1,200 59 120 <br /> 11 00 i 5,000 109 62 75 NR 0 045 0 85 0 52 NR NR NR NR NR NR <br /> 11 30 5,000 109 62 75 NR 0 035 0 84 0 50 NR NR NR NR NR NR <br /> 12 00 5,000 109 62 75 NR 0 04 0 88 0 54 NR NR NR NR NR NR <br /> 12.30 5,000 109 62 75 NR 0 04 0 88 0 54 AS-1230-EFF1 1,500 120 52 5 21 17 <br /> 12.30 5,000 109 62 75 10 000 0 04 0 88 0 54 AS-1230-INF2 69,000 2,100_ 1,600 67 140 <br /> Distance from vapor-Extraction Well. VW-1 (feet) 128 25 5 39 7 <br /> Air Stream Conditions for Extraction Well VW-4 Observation Well Data Vapor Sample Collection and Analysis <br /> Time Air Air Air Vacuum OVA VW-1 VW-2 VW-3 Vapor TPHg Benzene Toluene Ethyl- Total <br /> Velocity Flowrate Temp Cone Vacuum Vacutm Vacuum Sample No Benzene Xylenes <br /> (fpm) (cfm) (F} (in H20) (ppmv) (in H20) in H20) (in H20) (mg/m^3) (mg/m^3) (mg/m"3) (mg/m"3) (itig/m"3) <br /> 13.30 4,750 104 63 68 10,000 0 56 0 10 1 AS-1230-INF3 100,000 6,600 6,000 340 930 <br /> 14:00 4,450 97 63 60 NR 0 70 0 185 1 31 NR NR NR NR NR NR <br /> 14 30 4,500 98 63 62 NR 0 73 0 160 1 42 NR HR NR NR NR NR <br /> 15 00 4,550 99 63 63 NR 0 79 0 19 1 51 NR NR NR NR NR NR <br /> 15 30 4,550 99 63 63 NA 0 79 0 19 1 51 NR NR NR NR NR NR <br /> 16 00 4,550 99 63 63 NR 0 79 0 19 1 51 NR NR NR HR NR HR <br /> 16 30 NR NR NR NR NR NR NR NR AS-1230-EFF2 810 89 41 5 7 21 <br /> 16 30 NR NR NR NR NR NR NR NR AS-1230-INF4 52,000 1,700 1,100 67 190 <br /> Distance from Vapor-Extraction well VW-4 (feet) 39 7 89 18 5 <br /> Notes Sample designation <br /> fpm = feet per minute NR = Not Recorded AS-1230-INF1 <br /> cfm = cubic feet per minute NA = Not Analyzed AS = Air Sample <br /> ppmv = parts per million by volume TPHg = Total Petroleum Hydrocarbons 1230 = Sample Date <br /> in H2O = inches of water column reported as gasoline INF1 = Influent air sample number <br /> mg/m"3 = milligrams per cubic meter €FF1 = Effluent air sample number <br /> 30003-13 <br />