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6.0 LABORATORY ANALYSES <br /> One soil sample was obtained from each of the three soil borings and submitted to the analytical <br /> laboratory for chemical analyses in accordance with ATC's Work Plan. Groundwater samples <br /> ' (upper and lower aquifers) were also obtained from each boring and submitted to the analytical <br /> laboratory for chemical analyses. <br /> 1 6.1 Soil <br /> ' The soil samples were analyzed for the following: TPH-G in accordance with EPA Test Method <br /> 8015M, BTEX in accordance with EPA Test Method 8020, and fuel oxygenates tert-butanol, <br /> MTBE, DIPE, ETBE and TAME in accordance with EPA Test Method 8260. <br /> Petroleum hydrocarbons were not detected in any of the soil samples. The analytical results for <br /> soil samples are presented in Table 1. Copies of the signed laboratory analytical reports and <br /> chain-of-custody forms are provided in Appendix E. <br /> 6.2 Groundwater <br /> The groundwater samples were analyzed for the following: TPH-G in accordance with EPA Test <br /> Method 8015M, BTEX in accordance with EPA Test Method 8020, and fuel oxygenates tert- <br /> tbutanol, MTBE, DIPE, ETBE and TAME in accordance with EPA Test Method 8260. <br /> TPH-G was detected in groundwater samples obtained from SB-1 at 10 and 24 feet, from SB-2 at <br /> 17 and 29 feet and from S13-3 at 25 feet bgs. MTBE was also detected in groundwater samples <br /> obtained from SB-1 at depths 10 and 24 feet bgs, from SB-2 at depths 17 and 29 feet and from <br /> S13-3 at 25 feet bgs. MTBE was below laboratory detection limit in groundwater sample <br /> collected from soil boring SB-3 at 11 feet bgs. BTEX and fuel oxygenates, excluding MTBE, <br /> were not present in groundwater samples obtained from S13-1, SB-2 and S13-3. The analytical <br /> results for the groundwater samples are presented in Table 2. A site plan showing select analytes <br /> ' in groundwater from this investigation and previous investigations is presented as Figure 4. <br /> Copies of the signed laboratory analytical reports and chain-of-custody forms are provided in <br /> Appendix E. <br /> 1:Un Program\QU[KS10RQ5 132(0003)\UF0R=000\AddDn70M.dw 12 ATC Associates Inc. <br /> 1 <br />