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:5•-1`-�#v4 <br /> 2�r_ <br /> ! iI <br /> Table 1. :Summary of Detected Constituents from Extraction System ARCO Station 2133, Stockton <br /> EPA 625 <br /> TP<s./gas and volatile EPA 624 (pargeabie (extractable d <br /> s� <br /> organics(µg/1) organics) (µg/1) organics) (µg/1) lea <br /> Date TPH as <br /> f <br /> sampled Benzene Ethylbenzene Toluene Xylenes gas Benzene Ethylbenzene Toluene Xylenes Naphthalene <br /> 4/30190s <br /> 4/1g/9� 590 74 150 290 3,100 <br /> 440 27 160 290 13 - <br /> 4/30/91 190 22 120 110 1300 <br /> 6/11/91 48 3.8 18 23 X80 , <br /> 6/26/91 30 2.4 15 22 300 <br /> 37 2.2 19 27 370 <br /> 7/10/91 35 1.0 12 19 <50 <br /> 712419 i 56 3.8 26 47 280 <br /> 12 <0.5 2.0 <0.5 <50 <br /> 8/7/91 31 <0.5 12 20 170 `4 <br /> 8/21/91 25 0.6 8.8 15 150 ¢, <br /> 9/11/91 <br /> 9/25/91 g <br /> 10/9/91 . :fi r: <br /> ti: 1 <br /> 10/23/91 24 1.7 8.1 15 130 ? <br /> 1116/91 1.4 <0.5 <0.5 2.8 <50 Q' `1 <br /> 1 <br /> Date <br /> sampled Copper Lead Zinc <br /> 5/18/91 0.021 <0.05 0.12 <br /> `Yk i <br /> 6/26/91 0.11 0.050 0.24 `'{_: <br /> 7/24/91 0.03 0.010 0.10 <br /> 8/2I/91 0.14 0.079 1.4 <br /> 9/25/91 0.11 0.057 0.26 ,tF <br /> 10/23/91 0.58 0.056 0.42 <br /> sc9acoRxasauJcsoosi <br /> k <br /> i <br />