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1 <br />' In accordance with the, work plan Condor conducted an additional soil and groundwater investigation on <br /> September 10, 15, and 18 I997 at the site I-our monitor wells were drilled, installed, developed, surveyed, and <br /> sampled as part of the Investigation The Report - Additional .Solt and (iroundwaler Investigulion, dated <br />' December 1 1, 1997 was prepared by ( ondor describing the investigation results <br /> laboratory analyses of the soil samples indicated that total petroleum hydrocarbons quantified as kerosene, <br />' diesel, and motor oil ( 1 FPI1), ethanol, tertiary butanol, D1PE, h I BE and ( FAME) were not detected at or above <br /> the laboratory reported dett.ctlon limits in any of the samples collected from the monitoring wells during the <br /> September 1997, sampling cvcnt B H X, TPIi-G and MTBE were not detected at or above the laboratory <br />' reported detection limits In the soli sample collected tram MW-1 at a depth of six feet bgs Benzene, ethyl <br /> benzene and xylene were not detected at or above the laboratory reported detection limits in the soil sample <br /> collected From MW-2 at a depth of tour feet bgs Toluene, TPH-Ci and MTBE were detected in the soil sample <br />' collected from MW-2 at a depth of four feet bgs (16 µg/kg, 1 2 mg/kg and 1,300 µg/kg, respectively) Benzene <br /> and toluene were not detected at or above the raised laboratory reported detection limit in the soil sample <br /> collected from MW-4 at a depth of six feet bgs MIBE was not detected at or above the laboratory reported <br />' detection limit in the sample collected from MW-4 at a depth of six feet Ethyl benzene, xylene and TPH-G were <br /> detected In the soil sample collected from MW-4 at a depth of six feet (680 }Lg/kg, 6,000 pJkg, and 28 mg/kg, <br /> respectively) A summary of the laboratory analytical results of the soil samples are presented below in Table <br />' BS <br /> TABLE B 5 <br />' Soil Sample Analytical Results <br /> B T E X TPH-G Gasoline TEPFi <br /> Oxygenates/ <br /> Additives <br /> Kerosene Diesel Motor <br /> Oil <br />' Dt.tLCt10n 50 50 50 50 1 0 100 1 0 1 0 100 <br /> Limps µg/kg µg/kg Mg/kg Mg/kg mg/kg Mg/kg mg/kg mg/kg mg/kg <br />' Sample <br /> ID <br /> MWl-6 ND ND ND ND ND ND ND ND ND <br />' MW2-4 ND 16 ND ND 12 1,300 ND 'ND ND <br /> (MTBl-) <br /> MW4-6 I ND 100* ND 1004 680 6 000 28 ND ND ND 'SID <br /> l nit C onversions Anti ictl <br /> ug/k), parts per btilton(pph) BTEX benzene toluene ethyl benzene and xylene <br /> rmlkg parts per million(ppm) t LPH total petroleum hydraearbons quatthfied as kerosene diesel and Motor oil <br /> TPH Co total petroleurn hydrocarbons quantified as gasoline <br /> MTBE methyl tertiary butyl ether <br /> ND none detected at or above laboratory detection]units <br /> ND X'-none detected to a level of X <br /> all other hasohne tddurvesroxySenates were not detected it or above the laboratory repotted <br /> detection htntts <br /> Laboratory analyses of the groundwater samples indicated total petroleum hydrocarbons quantified as kerosene, <br /> diesel, and motor oil (TEPH), ethanol, DIPE and ETBE were not detected at or above the laboratory reported <br /> detection limits in any of the groundwater samples collected from the monitoring wells during the September, <br /> 1997, sampling event BTEX, the selected gasoline oxygenates/additives and TPH-G were not detected at or <br /> above the laboratory reported detection limits in the groundwater sample collected from MW-1 Toluene, ethyl <br /> benzene, and TPH-G were not detected at or above the laboratory reported detection limits in the groundwater <br /> I <br />