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Table 3. Analytical Results <br /> ARCO Facility 2093, Tracy, California <br /> Monitoring well <br /> number Concentrations in u"A <br /> and date sampled Benzene Toluene Eth lbenzene Xylenes TPH-G (a) <br /> 1118/93 <0 5 <0 5 <0 5 <0 5 <50 <br /> 4114/93 75 <0 5 <0 5 <0 5 310 <br /> 8/31/93 (e) -- -- -- -- -- <br /> 10/27/93 <0 5 <0 5 <0 5 <0 5 <50 <br /> 2117194(e) -- -- -- -- -- <br /> 5/20/94 (e) -- -- -- -_ -- <br /> 1017/94 <0.5 <0 5 <0 5 <0 5 <50 <br /> ATR-7 <br /> 3110/89 <0 5 <0 5 <0 5 1 7 <200 <br /> 6/21189 1 <0 3 0 6 0 5 <50 <br /> 9/18/89 0 4 <0 3 <0 3 1 1 <50 <br /> 12127189 10 0 9 2 7 7 9 90 <br /> 4/18/90 6 1 2 6 2 l 5 8 <50 <br /> 10/16/90 <0 5 <0 5 <0 5 <0 5 <50 <br /> 1/10/91 6 <0 5 18 4 1 <50 <br /> 4/10/91 -- -- -- -- -- <br /> 7/10/91 -- -- -- -- -- <br /> 9/25/91 1 3 <0 5 <0 5 <0 5 <50 <br /> 1/23/92 -- .- -- __ -- <br /> 4/20/92 <br /> 7/8/92(e) -- -- -- -- -- <br /> 1018192 <0 5 <0 5 <0 5 <0 5 <50 <br /> 1119/93 I <0 5 0 6 <0 5 <50 <br /> 4/15/93 2 9 <0 5 <0 5 <0 5 <50 <br /> 8/31/93 <0 5 <0 5 <0 5 <0 5 <50 <br /> 10/27/93 <0 5 <0 5 <0 5 1 3 <50 <br /> 2/18/94 <0 3 <0 3 <0 3 <0 5 <10 <br /> 5/20/94 <0 3 <0 3 <0 3 <0 5 <10 <br /> 1017194 <0 5 <0.5 <0 5 <0 5 <50 <br /> ATR-S <br /> 8/25/91 110 <0 5 130 98 2700 <br /> 9/25/91 95 <0 5 51 97 1400 <br /> 1/23/92 25 <0 5 <0 5 <0 5 <50 <br /> 4/21192 14 0 9 14 9 3 140 <br /> 7/8/92 4 0 <0 5 9 2 0 8 87 <br /> 1018192 78 32 lI 88 140 <br /> 1119/93 140 17 11 34 980 <br /> 4/15/93 4 2 <0 5 4 6 4 9 110 <br /> 8/31/93 15 0 15 41 71 700 <br /> 10/27/93 620 2100 2800 8700 52000 <br /> 2117194(c) -- -- -- -- _- <br /> 5/20/94(c) <br /> 1017/94(c) <br />