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f+ <br /> 3 <br /> 6.0 DISCUSSION <br /> 4 <br /> From the surface to a depth of approximately 42 feet bgs, the soils encountered at the site <br /> consisted primarily of sands (including silty sand and clayey sand) and clays (including silty clay <br /> and sandy clay) and silts(including clayey silt). Groundwater was encountered at approximately <br /> borings. The <br /> 4 to 9 feet bgs in theboring to g gs are included as Appendix A.g <br /> TPH-G and BTEX were not detected in any of the soil samples. Tert-butanol was detected in <br /> S soil samples obtained from ATC-5-18' and ATC-6. MTBE was detected in soil samples <br /> obtained from ATC-1, ATC-5-18', and ATC-6. TPH-G was detected in groundwater samples <br /> obtained from ATC-2, ATC-3, and ATC-6. BTEX (at least one constituent) was present in <br /> r� groundwater samples obtained from ATC-2, ATC-3, ATC-5-20', and ATC-6. Tert-butanolwas <br /> detected in groundwater samples obtained from ATC-3, and ATC-5-20'. MTBE was detected in <br /> t all groundwater samples, except for ATC-4. <br /> k� <br /> r._ <br /> t <br /> I <br /> k <br /> ATC Associates Inc. <br /> . H,ILEMMANIQS 132 WUtEPORTSIdrillrpt.dm 8 <br /> �1 <br />