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i <br /> 12 February 1999 <br /> AGE-NC Project No 98-0452 <br /> Page 3 of 4 <br /> accordance with EPA Methods 5030/8015m <br /> • Volatile aromatics (benzene, toluene, ethylbenzene and xylenes BTE&X) with methyl Cert- <br />' butyl ether(MTBE) in accordance with EPA method 8020/602 <br /> Soil samples collected from a depth of 10 feet and the grab water samples were also analyzed for <br /> • Oxygenated compounds (di-isopropyl ether [DIPS]� ethyl tert-but 1 ether [ETBE]> MTBE, <br /> tert-amyl methyl ether [TAME], and tert-butanol [TBA]) in accordance with EPA Method <br /> 8260 modified <br /> 4.0. FINDINGS <br /> 41 STRATIGRAPHY <br /> Organic clay was the dominant component in soil samples collected Salty fine-grained sand lenses <br /> Iwere also encountered at various depths at the site Boring logs are included an Appendix A <br /> 42 ANALYTICAL RESULTS OF SAMPLES <br /> Neither organic vapor nor hydrocarbon odor were detected an any samples collected at the site <br /> TPH-d was detected at a concentration of 10 parts per million (ppm, reported as mg/kg) an the <br /> I sample collected from a depth of 5 feet bsg an probang BI Other petroleum hydrocarbons and <br /> oxygenated compounds were not detected an the soil samples analyzed from the site Analytical <br /> results of soil samples are summarized on Table 1 <br /> ITPH-d was detected an each grab water sample at concentrations as high as 2 700 arts per billion <br /> P g � P <br /> (ppb, reported as micrograms per Inter) MTBE was detected in four of the five water samples at <br /> Iconcentrations as high as 25 ppb Other petroleum hydrocarbons and oxygenated compounds were <br /> not detected an the grab water samples collected at the site Analytical results of grab water samples <br /> I are summarized on Table 2 The laboratory report (MAI Sample Nos 97326-97340) and chain-of- <br /> custody forms are included an Appendix B <br /> Adranced GeoEnvironmental.Inc <br /> I <br />