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pl <br /> s <br /> Table 1. Summary of Detected Constituents from Extraction System ARCO Station 2133, Stockton F � , <br /> EPA 625 - ,p <br /> TPH/gas and volatile TEPA 624 (purgeable (extractable <br /> organics(pg/l) ' <br /> organics)(pg/1) organics)(pg/l) . <br /> Date TPH as . <br /> sampled Benzene Ethyibenzene Toluene Xylenes gas Benzene Ethylbenzene Toluene Xylenes Naphthalene <br /> 4/3040 <br /> 4/18/91 590 74 150 290 3,100 " ' <br /> 4130/91 440 27 160 290 i 3 <br /> 6/11/91 190 22 120 110 1,300 <br /> 6/26/91 48 3.8 18 23 280 <br /> 7/10/91 30 2.4 15 22 300 <br /> 7/24/91 37 2.2 19 27 370 <br /> 8!7/91 35 1.0 12 19 <50 <br /> 8/21/91 56 3.8 26 47 280 <br /> 9/11/91 12 <0.5 2.0 <0.5 <50 ` <br /> 1 <br /> Date <br /> Lead Zinc <br /> sampled Copper 4` <br /> ; <br /> 5/18/91 0.021 <0.05 0.12, <br /> 6/26/91 0.11 0.050 0.24 " r <br /> 7/24/91 0.03 0.010 0.10 €a <br /> 8121/91 0.14 0.079 1.44 ' <br /> •�, r <br />