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Table 3. Analytical Results for <br /> ARCO Facility 2093, Tracy, California <br /> Monitoring well <br /> number and Concentrations in uJL <br /> date sampled Benzene Toluene Eth ]benzene X lenes TPH-G (a) <br /> ATR-1 <br /> 4/23/87 <0 5 <0 5 <0 5 23 <100 <br /> 12/22/87 5 9 <0 5 0 9 <0 5 -- <br /> 3/24/88 <0 5 <0 5 <0 5 <0 5 -- <br /> 6/23/88 <0 5 1 3 43 2 2 -- <br /> 9/29/88 <0 5 <0 5 <0 5 <0 5 -- <br /> 2122/89 l 4 <0 5 <0 5 1 8 <100 <br /> 6/21189 360 0 8 2 1 36 520 <br /> 9118189 250 1200 570 7100 27000 <br /> 12/27/89 3 4 <0 3 1 3 1 4 <50 <br /> 4/18/90 21 15 16 16 13 <br /> 10/16/90 1 <0 5 2 2 <50 <br /> 1/10/91 24 <05 57 23 <50 <br /> 4/10/91 1 3 <0 5 4 8 <0 5 73 <br /> 7110/91 2 <0 5 4 7 1 7 90 <br /> 9124191 <0 5 <0 5 <0 5 <0 5 <50 <br /> 1/23/92 <0 5 <0 5 <0 5 <0 5 <50 <br /> 4120/92 <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 /> I/I8/93(b) -- -- -- -- -- <br />. <br /> 4/14/93 <0 5 <0 5 1 5 <0 5 <50 <br /> 8130193 <0 5 <0 5 <0 5 <0 5 <50 <br /> 10/27/93 <0 5 <0 5 <0 5 <0 5 <50 <br /> 2/18/94 0 6 1 1 0 8 17 <br /> 5/20/94 0 6 0 3 1 4 <0 5 27 <br /> 1017194 <0 5 <0 5 <0 5 <0 5 <50 <br /> 12/16/94 <0 5 <0 5 <0 5 <0 5 <50 <br /> 2128195 <0 5 <0 5 1 <0 5 <50 <br /> 4/26/95 <0 5 <0 5 <0 5 <0 5 <50 <br /> 7/R7/95 (c) -- -- <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 /> 3/24/88 <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 /> 2122/89 1 8 0 7 0 6 3 4 370 <br /> 6121189 19 <03 04 <03 <50 <br /> 9/18/89 1 9 0 9 1 1 8 2 9 <br /> 12/27/89 3 5 <0 3 1 1 0 3 <50 <br /> 4118/90 2 9 <0 3 <0 3 <0 3 50 <br /> 10/16/90 <0 5 <0 5 <0 5 <0 5 <50 <br /> 1/10/91 0 8 <0 5 <0 5 <0 5 <50 <br /> 4/10/91 <0 5 <0 5 <0 5 <0 5 <50 <br /> 7/10/91 <0 5 <0 5 <0 5 <0 5 <50 <br /> 9/24/91 <0 5 <0 5 <0 5 <0 5 <50 <br /> 1/23/92 <0 5 <0 5 <0 5 <0 5 <50 <br /> 4120192 <0 5 <0 5 <0 5 <0 5 <50 <br /> 718192 2 8 <0 5 <0 5 <0 5 <50 <br />