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1 <br /> TABLE 1• Summary of Soil Analyses: Former Tank Cavity and Product Ltne Trenches <br /> ARCO Facility No.2093,Tracy, California <br /> Sample. Depth BTEX Distinction _ Total <br /> ' Designation Date (feet bgs) TPH-G Benzene Toluene Ethylbenzcne Xylenes Lead EDB <br />' Former Tank Cavily <br /> SW1 7/21/93 80 10 00054 00068 00051 00053 21 ND <br />' SW2 7/21/93 80 10 0 023 0 017 0 037 0 037 NA NA <br /> SW3 7/21/93 80 ND 0 028 0 040 0 014 0 063 NA NA <br /> SW4 7/21/93 80 20 023 0 061 0 050 027 17 ND <br />' SW5 7/21/93 80 15 0 044 ND 0 011 0 029 NA NA <br /> SW6 7/21/93 80 ND ND ND ND ND 23 ND <br />' SW7 7/21/93 80 ND 0 018 ND 0 005 017 NA NA <br /> SW8 7/21/93 80 2600 11 110 58 340 16 ND <br />' Product Line Trenche§ <br /> Ll 7/29/933 40 32 0 050 0 044 0 060 031 NA NA <br /> L2 7/29/93 40 15 0 085 029 025 17 NA NA <br /> L3 7/29/93 40 1,600 12 120 43 250 28 ND <br /> 1 L4 7/29/93 40 14 015 022 032 24 NA NA <br /> L5 7/29/93 40 14 016 0 066 036 16 37 ND <br />' FOOTNOTES <br />' All concentrations reported in mg/kg (ppm) <br /> TPH-G = Total Purgeable Petroleum Hydrocarbons (USEPA Method 8015) <br /> BTEX Distinction (USEPA Method 8020) <br /> t Total Lead (USEPA Method 7421) <br /> EDB = Ethylene Dibromide(USEPA Method 8010) <br /> NA = Not Analyzed <br /> ND = Not detected (for detection hmits see laboratory reports) <br /> bgs = Below ground surface <br /> 1 <br />