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' 3.0 CHEMICAL ANALYSIS AND RESULTS ' 3.1 Analytical Methodology The SJEHD requested the following analytical methods be performed on the soil ' samples. • EPA Method 8015 for Total Petroleum Hydrocarbons as Gasoline (TPH-G) and ' Diesel (TPH-D) • EPA Method 8260B for Volatile Organic Compounds (VOCs) including ' Oxygenates • EPA Method 6010 for Cadmium, Chromium, Lead, Nickel, and Zinc. ' • EPA Method 8082 for Polychlorinated Biphenyls (PCBs) ' 3.2 Analytical Results A summary of the soil analytical results is presented in Table 1. A copy of the laboratory ' reports and chain-of-custody record are included in Appendix D. ' The results of the analyses from of the soil samples collected from the excavation indicate the following: ' • TPH-G concentrations were detected in each of the soil samples collected from beneath the UST with concentrations ranging from 0.51 milligrams per kilogram (mg/kg) in soil sample B-1-7 to 9.3 mg/kg in soil sample B-2-8.5. TPH-G was not detected above laboratory reporting limits in the stockpile soil samples. • TPH-D concentrations were detected in each of the soil samples collected from ' beneath the UST with concentrations ranging from 10 mg/kg in soil sample B-2-9.5 to 420 mg/kg in soil sample B-2-8.5. TPH-D was not detected above laboratory reporting limits in stockpile soil sample SP-1-A&B and detected in stockpile soil ' sample SP-2-A&B at 7.7 mg/kg. • VOCs were not detected in the soil samples collected beneath the UST with the exception of naphthalene in soil sample B-2-8.5, detected at a concentration of 0.035 mg/kg. VOCs were not detected above laboratory reporting limits in the stockpile soil samples. Cadmium, chromium, lead, nickel, and zinc were all detected at concentrations that indicate background conditions for metals. • PCBs were not detected above laboratory reporting limits in the soil samples collected beneath the UST or in the stockpile soil samples. 4