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' frombeneath the ends of the former dispenser island at a depth of four feet below surface grade(bsg) • A `grab' ground water sample was collected at the north end of UST#3 at a depth of twelve feet bsg ' According to a PHS-EHD inspection report petroleum hydrocarbon odor and soil discoloration were noted beneath USTs Hydrocarbon Impacted Soil ' TPH-g was detected at the south end of the former UST #3 at a concentration of 4 milligrams per kilogram(mg/kg) Volatile aromatic compounds (benzene, ethylbenzene, toluene and total xylenes) were detected in the soil samples collected from the south end of the former USTs #2 and #3 at ' concentrations up to 180 micrograms per kilogram (gg/kg) TPH-g was not detected in the soil samples collected from the dispensers, but BTEX compounds were detected at concentrations up to t 62 ug/kg TPH-d was not detected in any of the UST excavation floor samples, the dispenser soil samples, or in the water sample collected from the site ' Methyl tertiary butyl ether(MTBE)was detected in five of the UST floor and dispenser soil samples at concentrations up to 320 gg/kg ' Stockpile soil from the UST removal had detectable concentrations of TPH-g, TPH-d and BTEX, as well as MTBE and tertiary-butanol(TBA) The greatest concentration of TPH-g was 120 mg/kg and the greatest concentration of TPH-d was 790 mg/kg BTEX compounds were detected at ' concentrations as high as 6,800 gg/kg (xylene) MTBE and TBA were detected in the stock pile at concentrations up to 500 gg/kg and 970 gg/kg, respectively IDissolved Petroleum Hydrocarbons ' TPH-g was detected in the grab ground water sample at a concentration of 37 milligram per liter (mg/1) MTBE was also detected in the grab ground water sample at a concentration of 3,200 micrograms per liter (µg/1) I SITE ASSESSMENT On 08 and 09 February, AGE advanced six soil borings for the construction of five ground water ' monitoring wells and collected soil samples Overall, sand was the dominant soil type encountered at the site Silty clay was encountered in the I samples collected from a depth of 5 feet bsg in all soil borings Sand was generally encountered in the samples collected at a depth of 10 feet bsg Coarse sand with gravel was encountered at 15 feet and typically at 20 feet bsg Clay with sand was encountered in the samples collected from a depth of 30 feet bsg to a depth of 45 feet bsg in boring SDI - Laboratory analysis of eighteen soil samples detected TPH-g, TPH-d and BTEX compounds in soil sample SBI-10, TPH-g and TPH-d were detected at concentrations of 4 mg/kg and 4 mg/kg, Advanced GeoEnvironmental,Inc.