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n <br /> i Table 3. Analytical Results <br /> t ARCO Facility 2093, Tracy, California <br /> Monitoring well <br /> number and j; Concentrations in u /1 <br /> date sampled a Benzene Toluene Eth lbenzene Xylenes TPH-G(a) <br /> i. 7/8/92 li 150 2.1 36 39 590 <br /> 10/8/92 240 4.8 62 97 1200 <br /> 1/19/93 240 5.5 44 90 1200 <br /> 4115/93 160 4.2 47 63 810 <br /> 8/31/93 33 <0.5 6 13 100 <br /> 10/27/93 12 1.2 7.9 16 200 <br /> 2/18/94 140 5 73 30 950 <br /> 5/20/94 i 590 5.9' 190 220 8,100 <br /> 10/7/94 30 1 16 7.3 1,100 <br /> 12/16/94 310 2.3 350 200 1,600 <br /> II <br /> ATR-5 ih <br /> 3/10/89 693 <5.0 327 7 ' 6600 <br /> 6/29/89 sE 490 2.4 280 1.3 2200 <br /> 9/18/89 68 1.1 63 5.8 1000 <br /> 12/27/89 94 2 150 <1 2200 <br /> 4/18/90 120 2.6 6.8 140 1900 <br /> 10/16/90 18 4.7 79 16 1000 <br /> 1/10/91 7.1 1.2 16 2.6 350 <br /> 4110/91 4.6 <0.5 7 <0.5 370 <br /> 7/10/91 9.5 <0.5 18 1.5 1200 <br /> 9/24/91 <0.5 <0.5 <0.5 <0.5 <50 <br /> [ 1/23/92 1.4 1.5 1.5 <0.5 180 <br /> �roJ 4/21/92 1.6 <0.5 2 <0.5 290 <br /> 718192 <0.5 <0.5 0.6 <0.5 240 <br /> 10/8192 <0.5 <0.5 <0.5 <0.5 160(d) <br /> 1/19193 2.5 <0.5 7.9 1.3 1000 <br /> 4/15/93 1.5 <0.5 8.3 0.9 810 <br /> 8/31/93 <0.5 <0.5 <0.5 <0.5 80 <br /> 10/27/93 <0.5 <0.5 <0.5 <0.5 63 <br /> 2/18/94 3 5 1 4 160 <br /> 5/20194 <0.3 2 1.2 1.7 600 <br /> j 10/7194 <0.5 <0.5 <0.5 <0.5 660 <br /> 12/16/94 6.5 <0.5 <0.5 <0.5 410 <br /> ATR-6 <br /> 3/10/89 <0.5 <0.5 <0.5 <0.5 <200 <br /> 6121/89 <0.3 <0.3 <0.3 0.3 <50 <br /> 9118/89 05 1.3 0.3 3.8 <50 <br /> 12/27/89 <0.3 <0.3 <0.3 0.4 <50 <br /> 4118/90 19 2.4 0.6 5 <50 <br /> 10/16/90 <0.5 <0.5 <0.5 <0.5 <50 <br /> 1110191 <0.5 <0.5 <0.5 <0.5 <50 <br /> 4/10191 <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 /> / 4/21/92 <0.5 <0.5 <0.5 <0.5 <50 <br /> ,J 718/92 <0.5 <0.5 <0.5 <0.5 <50 <br /> 'f <br /> 10/7/92 <0.5 <0.5 <0.5 <0.5 <50 <br /> 1/18/93 <0.5 <0.5 <0.5 <0.5 <50 <br /> r <br /> 4/14/93 75 <0.5 <0.5 <0.5 310 <br /> 8/31/93 (e) -- -- -- -- -- <br /> 'i <br />