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Table 3. Analytical Results <br /> ARCO Station 2093,Tracy, California(cont'd) <br /> Monitoring well <br /> number Concentrations in u 1 <br /> and date sampled Benzene Eth lbenzene Toluene Xylenes TPH-G(a) <br /> ATR-6 <br /> 3/10/89 <05 <05 <0 5 <0 5 <200 <br /> 6/21/89 <0 3 <0 3 <0 3 03 <50 <br /> 9118/89 05 03 1 3 38 <50 <br /> 12/27/89 <0 3 <0 3 <0 3 04 <50 <br /> 4/18/90 19 06 24 5 <50 <br /> 10/16/90 <05 <0 5 <0 5 <0 5 <50 <br /> 10/19/90 - - - - <br /> 1/10/91 <0 5 <05 <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 /> ATR-7 <br /> 3110/89 <0 5 <05 <0 5 17 <200 <br /> 6/21189 1 06 <0 3 05 <50 <br /> 9/18/89 04 <0 3 <0 3 1 1 <50 <br /> 12/27/89 10 27 09 79 90 <br /> 4/18/90 61 21 26 58 <50 <br /> 10/1690 <0 5 <05 <0 5 <0 5 <50 <br /> 1/10/91 6 1 8 <0 5 41 <50 <br /> 4110/91 — — -- _ <br /> 7/10/91 — -- -- -- <br /> 9/25/91 13 <0 5 <0 5 <0 5 <50 <br /> 2123/92 -- -- -- -" <br /> ATR-8 <br /> 8/25191 110 130 <0 5 98 2700 <br /> 9/25/91 95 51 <0 5 97 1400 <br /> 1/23192 25 <0.5 <0.5 <0.5 <50 <br /> ATR-9 <br /> 10/16/90 <0 5 <05 <0 5 <0 5 <50 <br /> 10/19/90 - - - - <br /> 1/10/91 <0 5 <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 /> 9/25/91 <0 5 <0 5 <0 5 <0 5 <50 <br /> 1123/92 <05 <0.5 <0.5 <0.5 <50 <br /> ATR-10 <br /> 10/16/90 <0 5 <0.5 <0 5 <0 5 <50 <br /> 10/19/90 - - - - - <br /> . 1/10/91 <0 5 <0 5 <0 5 <0 5 <50 <br /> 4/10/91 <0 5 <0 5 <0 5 <0 5 <50 <br />