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lflr1el+lflrfl Mr. Roy Knight 24 October 1997 Page 2 • Cadmium, Chromium, Lead, Zinc, and Nickel using EPA Method 3050A, and Methyl Tertiary Butyl Ether(MTBE)using EPA Method 8020. • Benzene, Toluene, Ethylbenzene, and Total Xylenes/ Total Petroleum Hydrocarbons as Gasoline (BTEX/TPH-G)using EPA Method 8020 Total Petroleum Hydrocarbons as Diesel (TPH-D)using EPA Method 8015 • Total Oil and Grease using EPA Method 5520B • PCBs(Poly Chlorinated Biphenyls)using EPA Method 8080 • Chlorinated Hydrocarbons(CLHCs)using EPA Method 8240 • PNAs (Poly Nuclear Aromatics)using method 8270 Copies of the laboratory analysis reports are attached to this letter and the results are summarized below. Chromium, lead, nickel, and zinc were detected at concentrations of 57 mg/Kg, 38 mg/Kg, 110 mg/Kg, and 52 mg/Kg, respectively. Because of the elevated concentration of chromium, the Waste Extraction Test (WET) was performed on this sample to determine whether or not this material could be considered a hazardous material according to the Total Threshold Limit Concentration (TTLC). The WET reported soluble chromium at a concentration of 0.78 mg/L which is less than the Soluble Threshold Limit Concentration (STLC) for classification as a hazardous waste. Petroleum hydrocarbons that were detected included total petroleum hydrocarbons as diesel at a concentration 380 mg/Kg and Total Oil & Grease at a concentration of 14,000 mg/Kg. Constituents associated with gasoline that were detected include ethylbenzene at 1.26 mg/Kg, total xylenes at 9.10 mg/Kg, and total petroleum hydrocarbons as gasoline at 1,160 mg/Kg. Benzene, toluene, and MTBE, other constituents of gasoline, were not detected above method detection limits. PNA analysis detected four constituents: 2-methylnapthalene at 2.9 mg/Kg, acenaphthene at 0.73 mg/Kg, flourene at 1.0 mg/Kg, and phenanthrene at 2.5 mg/Kg. These constituents are typical of heavy oil products. PCBs and CLHCs, which are associated with hydraulic oils and solvents, were not detected at concentrations above their method detection limits.