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(A <br /> • Table 4. Historical Groundwater Sample Results Continued, <br /> ARCO Facility 434, Lodi, California <br /> Monitoring well <br /> number and Concentrations in gg/L <br /> date sampled Benzene Toluene Ethylbenzene Xylenes TPH-G(a) MTBE <br /> 3122/94 <0 3 <0 3 <0 3 <0 5 <10 -_ <br /> 6123194 <0 3 <0 3 <0 3 <0 5 <10 _- <br /> 9/28194 <0 5 <0 5 <0 5 <0 5 <50 <br /> 12/19/94 <0 5 <0 5 <0 5 <0 5 <50 -- <br /> 3/2/95 <0 5 <0 5 <0 5 <0 5 <50 <br /> 5/t9/95 <0 5 <0 5 <0 5 <0 5 <50 <br /> 8/10/95 <0 5 <0 5 <0 5 <0 5 <50 -- <br /> 11/17/95 <br /> - <br /> 11/17/95 <0 5 <0 5 <0 5 <0 5 <50 <3 <br /> 2114196 <0 5 055 <0 5 5 0 <50 -- <br /> 5/9/96 <0 5 <0 5 <0 5 <0 5 <50 -- <br /> 5-10 <br /> 5/9/90 2 5 0 4 04 2 -- <br /> 10/04/90 16 2 3 10 -- -- <br /> 212/9I 26 25 06 36 -- <br /> 4/17/91 64 <0 5 <0 5 097 <50 -- <br /> 7/24/91 56 <0 5 <0 5 2 3 2900 -- <br /> 10/23/91 54 <0 5 <0 5 2 3 1 100 -- <br /> 2/11/92 15 <1 <1 <1 360 -- <br /> 5/12/92 20 0 7 <0 5 1 7 400 <br /> 8/18/92 26 <0 5 <0 5 <0 5 230 -- <br /> 11/17/92 3 5 <0 5 <0 5 <0 5 <50 <br /> 2/22/93 ()) -- -- -- -- -- -- <br /> 5/26/93 <0 5 <0 5 <0 5 <0 5 <50 -- <br /> 8/24/93 <0 5 <0 5 <0 5 <0 5 <50 -- <br /> 11/17/93 <0 5 <0 5 <0 5 <0 5 <50 -- <br /> 3/22/94 <0 3 <0 3 <0 3 <0 5 <10 -- <br /> 6/23/94 U) -- -- -- -- -- -- <br /> 9/28/940) -- -- -- -- --12/19/940) -- -- -- -- -- -. <br /> 3/2195 <0 5 <0 5 <0 5 <0 5 <50 -- <br /> 5/19/95 <0 5 <0 5 <0 5 <0 5 <50 8/11/95 <0 5 <0 5 <0 5 <0 5 <50 <br /> 11/17/95 (f) -- -- -- -- -- <br /> 2/14/96 <0 5 050 <0 5 4 7 <50 -- <br /> 5/9/96(f) -- -- -- -- -- -- <br /> W-11 <br /> 5/3190 3 4 1 1 3 4 1 9 — -- <br /> 10/04/90 2 2 1 4 -- -- <br /> 2/2/91 18 I 3 2 2 9 -- -- <br /> 4/18/91 44 <0 5 <0 5 19 470 -- <br /> 7/24/91 12 <0 5 <0 5 <0 5 450 -- <br /> 10/23/91 6 9 <0 5 <0 5 <0 5 380 <br /> . 2/11/92 <0 5 <0 5 <0 5 <0 5 340 Y <br /> 5112192 <0 5 <0 5 <0 5 <0 5 80 <br />