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Table 3. Analytical Results for <br /> ARCO Facility 434, Lodi, California <br /> Monitoring well <br /> number and Concentrations in L <br /> date sample Benzene Toluene Eth lbenzene Xylenes TPH-G(a) MBTE <br /> W-1 <br /> 4/10187 120 <10 <10 <10 120000 -- <br /> 7/23187 180 200 <2 5 190 <900 -- <br /> 11/13/87 1600 2300 1400 6900 147200 -- <br /> 1/5/89 3680 740 130 2280 <br /> 4110/89 2920 1050 <50 2830 <br /> 7/11/89 1140 310 16 685 <br /> 10/89 -- <br /> Destroyed 5/90 <br /> W-1A <br /> 4/23190 490 81 41 540 _ <br /> 10/02/90 27 6 <0 5 8 <br /> 2/1/91 100 24 34 50 _ <br /> 4/18/91 110 5 8 <0 5 63 250 -- <br /> 7124/91 75 55 <0 5 46 530 -- <br /> 10/23/91 20 <0 5 <0 5 <0 5 200 <br /> 2/11/92 18 <1 <1 <1 430 -- <br /> 5/12/92 56 <0 5 <0 5 <0 5 220 <br /> 8/18/92 65 <0 5 <0 5 <0 5 140 11/17/92 <0 5 <0 5 <0 5 <0 5 <50 - <br /> 2/23/93 <0 5 <0 5 <0 5 <0 5 <50 <br /> 5/26193 <0 5 <0 5 <0 5 <0 5 <50 <br /> 8123193 <0 5 <0 5 <0 5 <0 5 <50 <br /> 11/17/93 <0 5 <0 5 <0 5 <0 5 <50 -- <br /> 3/22194 <0 3 <0 3 <0 3 <0 5 <10 -- <br /> 6/23/94 <0 3 <0 3 <0 3 <0 5 <10 -- <br /> 9/28/94 <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 /> 5/19/95 <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 <05 <0 5 <0 5 <0.5 <50 <3 <br /> W-2 <br /> 4110/87 4100 9200 680 5500 64000 -- <br /> 7/23/87 14000 25000 2300 16000 281700 -- <br /> 11/13/87 6200 5300 5600 13000 343904 <br /> 6/24/88 3570 3900 755 3000 <br /> 10/3/88 260 500 110 410 <br /> 1/6189 4400 4540 510 2740 _ <br /> 416/89 4200 110 450 2620 <br /> 7/11/89 2090 1500 200 1150 <br /> 1018//89 496 206 87 219 <br /> 1122190 3600 4500 470 5000 18000 <br /> 5/9/90 4900 4000 350 5000 <br /> 10/2/90 2800 2300 260 2900 <br /> 211/91 2600 1400 150 1600 <br /> 4/16/91 4300 2200 110 1700 16000 <br /> 7/24191 4900 740 110 1300 16000 <br /> 10/23/91 440 120 64 410 4000 __ <br />