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r , <br /> 15 November 2011 <br /> AGE-NC Project No. 11-1999 <br /> Page 3 of 5 <br /> • Total petroleum hydrocarbons (TPH-all) as carbon chain C5-C12, carbon chain <br /> C13-C24, and carbon chain C25-C40 in accordance with EPA-method 8015- <br /> modified; <br /> • Volatile organic compounds (VOCs) in accordance with EPA-method 826013; <br /> • LUFT metals: Cd, Cr, Ni, Cu, and Pb in accordance with EPA Methods 6010B. <br /> Selected soil samples were analyzed forTPH-all and LUFT metals; selected ground water <br /> sampled were analyzed for TPH-all and VOCs. <br /> 2.4. EQUIPMENT DECONTAMINATION <br /> Prior to sample collection, Geoprobe soil sampling equipment was thoroughly rinsed with <br /> clean water after being washed with a solution of Alconox. Geoprobe rods were thoroughly <br /> cleaned prior to soil probe boring advancement. <br /> 2.5. BORING ABANDONMENT <br /> Following soil and ground water sample collection, each boring was permanently sealed <br /> to prevent vertical migration of potential contaminants. Soil borings were abandoned by <br /> backfilling with portland cement from the total depth to surface grade. <br /> 3.0. FINDINGS <br /> Hydrocarbon odors were observed in the soil sample collected from boring B5 at 10 feet <br /> bsg (135-10). Utilizing the OVM, organic vapors were detected in soil sample 135-10 at a <br /> concentration 5.7 parts per million volume(ppmv). Organic vapors were not detected in the <br /> remaining soil samples. Boring logs are included in Appendix A. <br /> A total of nine soil samples collected from borings B2, B3, B5, B6, B8, B9, 1311, and B12 <br /> were analyzed for TPH-all; a total of four soil samples collected from B2, B5, B8, and B9 <br /> were analyzed for LUFT metals. TPH in the carbon chain range C13-C24 were detected <br /> in soil sample 135-10 at a concentration of 190 milligrams per kilogram (mg/kg). Chromium, <br /> copper, lead, and nickel were detected in samples 132-10, 135-10, 138-10, and 139-10 at <br /> maximum concentrations of 43 mg/kg chromium, 55 mg/kg copper, 21 mg/kg lead, and <br /> 60 mg/kg nickel; cadmium was not detected above laboratory reporting limits in the soil <br /> samples analyzed. No other chemical constituents were detected above laboratory <br /> reporting limits in the soil samples analyzed. <br /> Advanced Geo Environmental,Inc. <br />