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EXECUTIVE SUMMARY <br /> The depth to groundv�ater was measured and water samples were collected from tine Gillies <br /> Trucking site on June 14, 1999 Groundwater is pmesent at a depth of 47 feet (approximately one <br /> foot deeper than when measured in March 1999) Nine dater samples were sent to Excelchem <br /> Analytical Laboratoties for analysis of Total Petroleum Hydrocarbons in the diesel range Two <br /> samples were also analyzed for hydiocarbons in the gasoline range and BTEX, and one of these was <br /> also analyzed for gasoline oxygenates because MTBE had previously been reported (using EPA <br /> method 8020) in this well Appro\tmately 90 gallons of water were purged from six wells and <br /> stored to 55-gallon drums near monitor well NIW-6 <br /> The groundwater gradient has again changed shape and direction, and the predomi cant flow <br /> direction now appears to be northward Labomatory results support this interpretation, and ,yells near <br /> the souther n edge of the site experienced. decreases in contaminant concentiatmons while m ells to the <br /> north experienced mncmeascs in concentrations In particular, diesel was detected for the fij st time in <br /> the sample from the most northern well, which is the domestic well that supplies the bathrooms on <br /> the Gillies propert, A concentration of 3,300 ppb was detected at the faucet near the men's <br /> bathroom The w ell watem is used for washing on?y, bottled water is used for drinking <br /> Analysis by EPA method 8260 did not confirm the previous report of an MTBE concentration of <br /> 9 7 ppb in well GT-10 HoNke-vem the reporting limit for the analysis was elevated to 10 ppb due to <br /> . interference b� othEt gasoline compounds, making it impossible to detect concentrations below 10 <br /> ppb <br /> I <br />