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1 <br /> Disalvo Trucking - OEs <br /> October 14, 1993 <br /> Page -7- <br /> TABLE 3 (continued) <br /> UST Soil Sample Laboratory Analytical Results (TK7) <br /> TM-C CHC PCS Cd Cr Hi Pb Zn <br /> Detection 2 5 5 0 1 0 0.5 1 0 2.5 5 0 2 5 <br /> Sample Limits mg/kg µg/kg mg/kg mg/kg mg/kg _mg/kg mg/kg mg/kg <br /> ITST'a <br /> 724-TY.7N-8 5 ND ND ND ND 7 6 ND 19 <br /> 724-TIC73-8.5ND ND ND ND 6 6 ND 15 <br /> unit Conversions. <br /> µg/kg parts per billion (ppb) TPH-G = total petroleum hydrocarbons, quantified as gasoline <br /> mg/kg parts per million (ppm) CHC - chlorinated hydrocarbons <br /> PCS polychlorinated biphenyls <br /> Cd, Cr, Ni, Pb, Zn = cadmium, chromium, nickel, lead, zinc <br /> ND none detected at or above laboratory detection limits. <br /> 4.0 SUMMARY AND RECOMMENDATIONS <br /> The laboratory analyses 1_ndicated 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 /> mg/kg were noted from the stockpile samples ( 724-SP1-1, 724-SP2- <br /> 1, and 724-SP3-1, respectively) . BTEX, 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 nondetectable 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 /> concentrations for the sediments identified at the site. <br /> A��' <br /> CONDOR <br />