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• i � , <br /> Table 1. Summary of Laboratory Analysis From Extraction System, <br /> ARCO Station 2133, Stockton <br /> TPH/gas and volatile organics, µg/1 <br /> EPA Method 8015/8020/602 LUFT klethod, mg/l <br /> Date pH (held <br /> sampled measurement) Benzene Toluene Ethylbenzene Xylenes TPH as gas Cadmium Chromium Copper Nit-W Zink <br /> 3/15/94 731 44 24 26 120 830 <1002 <0 010 <0 010 <0 050 <0 025 <0010 <br /> i <br /> i <br />