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Tabic 3. Analytical Results for <br /> ARCO Facility 2133, Stockton, California <br /> Monitoring well Concentrations in p Water-level <br /> number and Methyl tertbutyl elevation, <br /> date sampled Benzene Toluene I Ethylbenzene Xylenes TPH-G (a) ether in feet(b) <br /> 9/11/95 87 3 9 l 29 1500 -- -1261 <br /> 12/5/95 120 <10(c) 16 11 2200 -- -1299 <br /> 3/18/96 190 19 24 800 8200 -- -978 <br /> 6/18/96 170 <0 5 <0 5 2500 15,000 <5 -846 <br /> (a)TPH-G =Total petroleum hydrocarbons as gasoline <br /> (b) Unknown hydrocarbon-most likely weathered gasoline <br /> (c)Raised reporting limit due to high analyte concentration requiring sample dilution <br /> (d)Xylenes were incorrectly reported in the second quarter 1994 quarterly report <br /> data shown herein is correct <br /> (e) Sample not collected because well was covered by soil pile <br /> (f)Raised reporting limit due to matrix interference <br /> (g)Sample not collected because well was dry <br /> (h) Well on a semi-annual sampling schedule Sampled during the first and third <br /> quarters of each year <br /> (i)Sample not collected because well connected to SVE/AS system,was under a <br /> vacuum and maccessible <br /> 0)Sample not collected because well contained free product <br /> Note Dash indicates not measured or not analyzed <br /> t <br /> 33161TABLES12133JUL6 XLS <br />