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1 <br /> E <br /> Table 1. Summary of Detected Constituents From Extraction System, <br /> ARCO Station 2133, Stockton <br /> TPH/gas and volatile organics, pg/l <br /> EPA Method 8015/8020 Lead, pg/l <br /> Date pH (fieldEPA Methods <br /> sampled measurement) Benzene Ethylbenzene Toluene Xylenes TPH as gas 7421/3005 <br /> 7/15193 722 110 10 27 140 1,100 <5 <br /> Use or disclosure of data contained on this sheet is subject to the restriction specified at the beginning of this <br /> document <br /> 7452\CORRESP\7452-04 L-8 <br />