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KLEINFELDER <br /> ' . Total Extractable Petroleum Hydrocarbons as referenced to Diesel [TPH-D] by EPA Method <br /> ' SW8015B/DHS LUFT Manual. <br /> • Oil & Grease by Method SM 5520E <br /> ' • Volatile Organics by EPA Method SW8260B <br /> • Semi-Volatile Organics by EPA Method 8270C <br /> ' • LUFT 5 Metals(Cd, Cr, Pb,Ni and Zn)by EPA Method 200.8 <br /> • Total Purgeable Petroleum Hydrocarbons [TPH-P] by EPA Method 8015M <br /> ' • Benzene, Toluene,Ethylbenzene,Xylenes [BTEX] by EPA Method 8020M <br /> One of these four initial soil samples (Sample No 21977) collected at a depth of approximately 7 <br /> ' feet was also analyzed for: <br /> • Polychlorinated Biphenyls (PCBs)by EPA Method SW8082 <br /> ' The following is a tabular summary of concentration ranges of detected analytes for the initial <br /> four confirmation samples (collected in discolored and odiferous soils) from Area LE-C. <br /> ' Table 5.1.3a <br /> ' Initial Confirmation Sampling Results <br /> Petroleum Constituents <br /> Large Excavation C <br /> TPH-P Toluene Xylenes TPH-D Oil & Grease <br /> (mg/kg) /k /k (mg/kg) (mg/kg) <br /> ' Initial <br /> Confirmation 48 6.0 to 34 5.2 to 56 370 134 to 948 <br /> (Discrete) <br /> ' In addition to the summary of analytes concentration ranges listed above, 4 of the 5 LUFT metals <br /> ' were also detected including chromium, lead, nickel and zinc. The concentration ranges for these <br /> metals are as follows: <br /> Chromium 22 to 28 mg/kg <br /> Lead 6 to 7 mg/kg <br /> Nickel 26 to 40 mg/kg <br /> ' Zinc 34 to 46 mg/kg <br /> ' No other constituents from the requested analyses for these initial four confirmation samples, <br /> including volatile and semi-volatile organic compounds by EPA Methods 8270 and 8260, <br /> respectively,were detected above reporting limits. PCBs were also not detected in the single soil <br /> sample#21977 from a depth of 7 feet bgs. <br /> 20-4341-11101/2011R959 Page 19 of 3l <br /> ' Copyright 2001,Kleinfelder,Inc. August 21,2001 <br />