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• • 0 i <br /> Table 1. Summary of Detected Constituents From Extraction System, ARCO Station 2133, Stockton <br /> TPH/gas and volatile organics, pg/I <br /> EPA Method 8015/8020 <br /> pH (held Copper Cadmium Nickel <br /> Date sampled measurement) Benzene Ethylbenzene Toluene Xylenes TPH as gas (mg/I) (mg/1) (mg/1) <br /> 1/13193 -- 57 23 0 88 1 73 760 0 011 -- -- <br /> 1/27/93 -- 14 <0 5 <0 5 170 1,400 -- -- -- <br /> 2/I0193 -- 190 22 63 210 1,600 0 031 -- -- <br /> 2124/93 -- 2 <0 3 0 5 <05 160 -- -- -- <br /> 3110/93 -- 89 1 21 160 1,100 <001 -- -- <br /> i <br /> 4114/93 713 85 5 18 180 1,500 -- -- -- <br /> 5/25/93 6 8 120 16 36 190 1,100 <0 01 0 006 0 010 <br /> 6/I0/93 658 130 20 46 190 1,200 <0 01 <0 005 <0 01 <br /> Volatile organics, pg/1 <br /> EPA Method 624 Biochemical oxygen <br /> demand, mg/I <br /> Date sampled Benzene Ethylbenzene Toluene Xylenes EPA Method 405 1 <br /> 5/25/93 86 13 26 160 085 <br /> 6/10/93 100 19 39 180 a <br /> 'Sampled one time per year <br /> 7452\C0RREMTABLE 1 <br />