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Table 3. Analytical Results <br /> ARCO Facility 434, Lodi, California <br /> Monitoring well <br /> number and Concentrations in u /l <br /> date sampled Benzene Toluene Eth (benzene Xylenes TPH-G(a) <br /> 5/12/92 <0.5 <0.5 <0.5 <0.5 80 <br /> 8/18/92 <0.5 <0.5 <0.5 <0.5 <50 <br /> 11/17/92 <0.7 (e) <0.5 <0.5 <0.5 59 <br /> 2/23/93 <0.5 <0.5 <0.5 <0.5 <50 <br /> 5/26/93 <0.5 <0.5 <0.5 <0.5 <50 <br /> 8/23/93 <0.5 <0.5 <0.5 <0.5 <50 <br /> 11/16/93 <0.5 <0.5 <0.5 <0.5 <50 <br /> 3122194 <0.3 <0.3 <0.3 <0.5 <10 <br /> 6/23/94 <0.3 <0.3 <0.3 <0.5 <10 <br /> 9/28194 <0.5 <0.5 <0.5 <0.5 <50 <br /> 22/19/94 <0.5 <0.5 <0.5 <0.5 <50 <br /> W-12 <br /> 4/23/90 <0.3 2.3 <0.3 0.9 - <br /> 10/04/90 <0.5 <0.5 <0.5 <0.5 - <br /> 2/2/91 <0.5 <0.5 <0.5 <0.5 - <br /> 4/17/91 <0.5 <0.5 <0.5 <0.5 <50 <br /> 7/24/91 6.9 <0.5 <0.5 <0.5 90 <br /> 10/23/91 25 <0.5 <0.5 <0.5 100 <br /> 2/10/92 12 <0.5 <0.5 <0.5 95 <br /> 5/I2/92 48 <0.5 <0.5 <0.5 170 <br /> 8/18/92 29 <0.5 <0.5 <0.5 180 <br /> 11/17/92 11 <0.5 <0.5 <0.5 <50 <br /> 2/22/93 <0.5 <0.5 <0.5 <0.5 <50 <br /> 4/23/93 <0.5 <0.5 <0.5 <0.5 <50 <br /> 5/26/93 <0.5 <0.5 <0.5 <0.5 <50 <br /> 8/23193 <0.5 <0.5 <0.5 <0.5 <50 <br /> 11/16/93 <0.5 <0.5 <0.5 <0.5 <50 <br /> 3/22/94 <0.3 <0.3 <0.3 <0.5 <I0 <br /> 6/23/94 <0.3 <0.3 <0.3 <0.5 <10 <br /> 9/28/94 <0.5 <0.5 <0.5 <0.5 <50 <br /> 12/19/94 <0.5 <0.5 <0.5 <0.5 <50 <br /> (a)Total petroleum hydrocarbons as gasoline. <br /> (b)Well obstructed. <br /> (c)New well replaced in same borehole as former well W-2. <br /> (d)Well dry. <br /> (e)Insufficient water for well sampling. <br /> (f)Raised MRL due to high analyte concentration requiring sample dilution. <br /> (g)Raised MRL due to matrix interference. <br /> (h)Well inaccessible. <br /> Note: Dash indicates not measured or analyzed. Bold samples analyzed this quarter. <br />