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iI ` <br /> Table 3. Analytical Results for <br /> 11 <br /> ARCO Facility 2093, Tracy, California <br /> Monitoring well <br /> number and Concentrations inµg/1_. <br /> date sampled Benzene Toluene I Ethylbenzene Xylenes TPH-G(a) <br /> ATR-1 <br /> 4123187 <0.5 <0.5 <0.5 23 <100 <br /> 12/22/87 5.9 <0.5 '' 0.9 <0.5 -- <br /> 3124/88 <0.5 <0.5 <0.5 <0.5 -- <br /> 6/23/88 <0.5 1.3 j 4.3 2.2 - <br /> 9/29/88 <0.5 <0.5 <0.5 <0.5 -- <br /> 2/22/89 - 1.4 <0.5 <0.5 1.8 <100 <br /> 6/21/89. 360 0.8 2.1 36 '? 520 ll <br /> 9/18189 250 1200 ' 570 7100 :, 27000 <br /> 12/27/89 3.4 <0.3 1.3 1.4 1! <50 <br /> 4118/90 21 1.5 " 16 16 13 <br /> 10/16/90 1 <0.5 2 2 <50 <br /> 1110/91 2.4 <0.5 5.7 2.3 <50 <br /> 4110/91 1.3 <0.5 4.8 <0.5 73 l <br /> 7110191 2 <0.5 4.7 1.7 90 <br /> <0.5 < < < < <br /> 9124191 0.5 0.5 0.5 50 <br /> . k <br /> 1123192 <0.5 <0.5 <br /> <0.5 <0.5 <50 ` <br /> 4/20/92 <0.5 <0.5 <0.5 <0.5 <50 <br /> 7/8/92 <0.5 <0.5 0.6 <0.5 <50 <br /> 1017192 <0.5 <0.5 ! <0.5 <0.5 <50 <br /> 1/18/93(b) -- -- -- -- -- F <br /> 4114193 <0.5 <0.5 1.5 <0.5 <50 <br /> 8/30193 <0.5 <0.5 <0.5 <0.5 <50 <br /> 10/27/93 <0.5 <0.5 <0.5 <0.5 F <50 <br /> 2118194 0.6 1 1 0.8 ` 17 <br /> 5/20194 0.6 0.3 1.4 <0.5 27 <br /> 10/7/94 <0.5 <0.5 <0.5 <0.5 <50 <br /> 12/16/94 <0.5 <0.5 i' <0.5 <0.5 <50 <br /> 2/28/95 <0.5 <0.5 1 <0.5 <50 <br /> 4/26/95 <0.5 <0.5 <0.5 <0.5 <50 <br /> 7/27/95 (c) -- -- -- -- <br /> 10/27/95 <0.5 <0.5 <0.5 <0.5 `I <50 <br /> 2112196 <0.5 <0.5 2.2 <0.5 120 <br /> 4/18/96 - <br /> iiE <br /> ij <br /> ATR-2 <br /> 4/23187 <0.5 0.6 <0.5 <0.5 <100 <br /> 12/22/87 <0.5 <0.5 <0.5 <0.5 <br /> 3724188 <0.5 <0.5^ <0.5 <0.5 -- <br /> 6/23/88 <0.5 <0.5 ? <0.5 <0.5 -- <br /> 9/29/88 <0.5 <0.5 <0.5 <0.5 -- <br /> 2/22/89 1.8 0.7 0.6 3.4 370 <br /> 6/21/89 1.9 <0.3 0.4 <0.3 <50 <br /> t 331 S\TABLESU093JUN6.XLS <br /> a <br />