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Table 3. Analytical Results <br /> ARCO Facility 2093, Tracy, California <br />• <br /> Monitoring well <br /> number and Concentrations in ua 1 <br /> date sam led Benzene Toluene Eth lbenzene Xylenes TPH-G(a) <br /> 8/30/93 <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 7 09 <0 3 0 7 <10 <br /> 5/20/94 0 9 <0 3 <0 3 <0 5 <10 <br /> 10/7/94 <0 5 <0 5 <0 5 <0 5 <50 <br /> 12/16/94 <0 5 <0 5 <0 5 <0 5 <50 <br /> 2/28/95 <0 5 <0.5 <0 5 <0 5 <50 <br /> ATR-3 <br /> 4123/87 2300 180 <5 0 2300 17000 <br /> 12/22/87 5000 50 530 250 -- <br /> 3/24/88 8300 8700 4400 7800 43000 <br /> 6123/88 6160 4221 1800 4750 70000 <br /> 9/29/88 8850 17600 2190 8170 57400 <br /> 2/22/89 1000 2100 480 2000 110000 <br /> 6/29189 890 520 250 1100 4500 <br /> 9/18189 1000 1300 460 2200 7400 <br /> 12/28/89 840 1400 840 5600 27000 <br /> 4118/90 1000 490 340 1500 4800 <br /> 10/16/90 1900 1300 780 4600 14000 <br /> 1/10/91 610 230 160 670 2600 <br /> 4/10191 910 120 110 190 3000 <br /> 7110191 420 300 340 760 19000 <br /> 9/24/91 280 8I 69 130 2000 <br /> 1123193 (c) -- -- __ -- -- <br /> 4/20/93 (c) <br /> 7/8/92(c) <br /> I0/7/92 (c) <br /> 1/18/93 (c) <br /> 4/14/93 (c) -- -- -- -- -- <br /> 8/30193 (c) <br /> 10/27/93 (c) -- -- _- -- <br /> 2/18/94 200 27 120 140 1900 <br /> 5/20194(c) -- -- __ -- -- <br /> 10/7/94(c) <br /> 12/16/94(c) <br /> 0Zr28/95 (e) -- -- -- -- <br /> ATR-4 <br /> 4/23/87 3000 200 <10 950 21000 <br /> 12/22/87 5300 310 430 270 -- <br /> 3/24188 5800 320 930 740 6000 <br /> 6123/88 237 8 8 2 10 5200 <br /> 9/29/88 1430 115 350 130 1400 <br /> 2/22189 1300 82 54 170 22000 <br /> 6/29/89 590 38 97 220 I300 <br /> 9/18/89 280 13 49 100 630 <br />. 12/28/89 500 25 56 160 1300 <br /> 4118/90 150 51 35 63 440 <br /> 10/16/90 26 41 48 038 380 <br /> 1/10/91 150 3 1 30 35 330 <br /> 4/10/91 8 4 <0 5 <0 5 24 500 <br /> 7/10/91 39 <0 5 3 7 3 190 <br />