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TABLE 1 <br /> FIELD MONITORING DATA FOR EXTENDED PILOT VAPOR EXTRACTION TEST <br /> SHELL SERVICE STATION <br /> 6131 PACIFIC AVENUE, STOCKTON, CALIFORNIA <br /> Date Time Monitor Well Vacuum Well Flow Influent Effluent <br /> Event (n H2O) (ft3/min) (ppmv) (ppmv) <br /> 12/03/91 NA 1 -22.5 113.6 76,000 13 <br /> NA 2 74,000 15 <br /> NA 3 81,000 9 <br /> 12/05/91 NA 1 -26.2 111.9 53,000 9 <br /> NA 2 52,000 11 <br /> NA 3 60,000 11 <br /> 12/11/91 14:00 1 -24.6 95.9 530 12 <br /> 500 14 <br /> 14:20 2 <br /> 14:40 3 490 15 <br /> 12/13/91 17:15 1 -29.6 96.6 480 17 <br /> 17:30 2 510 17 <br /> 17:45 3 390 14 <br /> 12/17/91 13:15 1 -7.4 63.9 3,500 12 <br /> 13:30 2 3,600 14 <br /> 13:45 3 3,500 15 <br /> 12/19/91 17:15 1 -32.0 85.4 2,300 25 <br /> 17:30 2 2,300 20 <br /> 17:45 3 2,350 25 <br /> 12/26/91 14:55 1 -24.5 85.6 24,000 35 <br /> 15:20 2 23,000 35 <br /> 15:45 3 28,000 40 <br /> 12/27/91 15:10 1 -9.8 65.7 6,500 40 <br /> 15:30 2 5,500 50 <br /> 15:50 3 35 <br /> Aegis Enmronmem i.Inc. <br /> January 15.1992 <br />