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DiSalvo Trucking - OEs <br /> T October 14, 1993 <br /> Page -7- <br /> TABLE 3 (continued) <br /> UST Soil Sample Laboratory Analytical Results (TK7) <br /> TPH-3 CHC PCB Cd Cr N1 Pb Zn <br /> I <br /> Detection 2.5 5.0 1.0 5 1.0 2.5 5.0 2.5 <br /> Sample Limits: . mg/kg pg/kg mg/kg /kg mg/kg mg/kg mg/kg mg/kg <br /> UST's <br /> 724-TK7N-8.5 ND ND NO ND 7 6 1 ND 19 <br /> 724-TK78-8.5 ND ND ND ND 6 6 ND 15 <br /> Unit Conversions: <br /> pg/kg-.parts per billion (ppb) TPH-G - total petroleum hydrocarbons, quantified as gasoline <br /> mg/kg:parts per million (ppm) CSC - chlorinated hydrocarbons <br /> PCE polychurinated biphenyls <br /> Cd, Cr, Ni, Pb, 2n cadmium, chromium, nickel, lead, zinc <br /> ND = none detected at or above laboratory detection limits. <br /> 4.0 SM!MARY AND RECOMMENDATIONS <br /> The laboratory analyses indicated concentrations of 80 mg/kg <br /> and 350 mg/kg for diesel and motor oil, respectively, for the <br /> soil sample collected beneath the eastern end of TK4. In <br /> addition, diesel concentrations of 120 mg/kg, 45 mg/kg, and 50 <br /> I <br /> mg/kg were noted from the stockpile samples (724-SP1-1, 724-SP2- <br /> 1 <br /> 1, and 724-SP3-1, respectively) . B EX, TPH-G, and kerosene were <br /> not detected at or above laboratory detection limits in the soil <br /> samples collected. <br /> The additional laboratory analysis conducted on soil samples <br /> collected from TK7 indicated nondete table levels of TPH-G, CHC, <br /> PCBs, cadmium, and lead. The low concentrations of chromium, <br /> } nickel, and zinc found are considered to be normal background <br /> 1- concentrations for the sediments identified at the site. <br /> i <br /> i <br /> i <br /> CONDOR <br /> I <br />