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r • • <br /> Table 1. Summary of Detected Constituents From Extraction System, ARCO Station 2133, Stockton <br /> i <br /> EPA 625 <br /> TPH/gas and volatile organics, pg/1 (extractable <br /> EPA Method 8015/8020 EPA 624 (purgeable organics), pg/1 orgamcs),}rg/1 <br /> Date TPH as Copper, Lead, Zoic, <br /> sampled Benzene Ethylbenzene Toluene Xylenes gas Benzene Ethylbenzene Toluene Xylenes Naphthalene mg/1 mg/1 mg/l <br /> 4/18/91 590 74 150 290 3,100 ; 0 021 <0 05 012 <br /> 4/30191 440 27 160 290 13 <br /> 6/11/91 190 22 120 110 1,300 <br /> 626/91 48 38 18 23 280 Oil 0 050 0.24 <br /> 7/10/91 30 24 15 22 300 <br /> 7/24/91 37 2.2 19 27 370 003 0.010 0.10 <br /> 8/7/91 35 10 12 19 60 <br /> 8121/91 56 38 26 47 280 S I 014 0 079 14 <br /> 9/11/91 12 <0 5 20 <0.5 <50 l <br /> 9125/91 31 05 12 20 170 Oil 0 057 026 <br /> 10/9/91 25 06 88 15 150 <br /> 10/23/'91 24 17 81 15 130 € 058 0 056 0.42 <br /> 11/6/91 14 <0.5 <0.5 2.8 60 <br /> 1/8/92 67 15 36 100 930 73 13 33 100 <16 <0 02 <0 002 0.037 <br /> 1/'22/92 74 11 27 71 840 <br /> 2/12/92 15 <0S 0.9 <0.5 -60 <0.02 0 027 0.06 <br /> 2/26/92 32 17 38 110 1,300 <br /> 3/11/92 100 55 35 160 1,600 001 <0 05 0.03 <br /> 3/25/92 100 17 47 140 1,300 <br /> 4/8/92 92 22 65 140 1,500 <br /> 00073 <0.025 0.023 <br /> 4/12/92 97 13 48 110 11000 <br /> 6/1/92$ <0 3 <0 3 <03 <0 3 <30 <br /> 6/10/92 75 80 24 56 560 0 019 <0 005 0.032 <br /> 6/24/92 100 94 33 100 940 <0 01 <br /> 7/8/92 32 08 32 33 380 <01 0 023 <br /> 7/22/92 22 <0 50 43 14 180 <br /> 8/12/92 094 054 <0 50 12 170 <0 010 <0 10 0.18 <br /> 8/26/92 86 044 11 95 150 <br /> 9/9/92 25 13 23 95 160 <0 010 <010 0.039 <br /> 9/23/92 078 05 <0.5 34 100 <br /> 10/14/92 <0 5 <0 5 <0 5 <0 5 60 0 048 <0 10 17 <br /> 10/31/92 20 20 36 19 260 <br /> 11/11/92 096 12 <03 12 160 0 011 <0 005 0 049 <br /> M <br /> 11/25/92 074 14 <0 5 16 170 <br /> 'Sample was collected within 1/2-hour of system start-up and is most likely not a representative sample <br /> 667ACORRESATAB 1 <br />