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1 <br />' In accordance 4rlth the wort. plan, ( ondor conducted an additional soil and groundwater Investigation on <br /> September 10 15 and 18 1997, at the. Site Four monitor wells were drilled, installed developed, surveyed, and <br /> sampled as part of tht investigation IIIc Report - 4dditional Soil and Groundwatei Investigation dated <br />' 17ecember 1 1 199; was prepared by Condor describing the investigation results <br /> Laboratory analysis of the soil samples indicated that total petroleum hydrocarbons quantified as kerosene, <br />' diesel, and motor oil (I EPI I), ethanol tertiary butanol RIPE, ETBE and ( FAME) were not detected at or above <br /> the laboratory reported detection limits in any of the samples collected from the monitoring wells during the <br /> September 1997 sampling event BTEX, TPH-Cs, and MTBF were not detected at or above the laboratory <br />' reported detection limits in the soil sample collected from MW-I at a depth of Sir feet bgs Benzene, ethyl <br /> benzene and xylene were not detected at or above the laboratory reported detection limits in the foil sample <br /> collected from MW-2 at a depth of four feet bgs Toluene, TPH-G and MTBF were detected in the soil sample <br />' collected from MW-2 at a depth of four feet bgs ( 16 Pg/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 MTBE 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 µglkg, 6,000 µlkg, 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 P X TPH-G Gasoline TEPH <br /> Oxygenates/ <br /> Additives <br /> Kerosene Diesel Motor <br /> Oil <br /> Detection 5 0 5 0 5 0 5 0 1 0 100 1 0 1 0 100 <br /> Limits ug/kg µg/kg ilg/kg ug/kg mg/kg ug/kg mg/kg mg/kg mg/kg <br /> Sample <br /> ill <br /> MWI-6 ND ND ND ND ND ND ND ND ND <br />' MW2-4 ND 16 ND ND 12 1,300 ND ND ND <br /> (MTBE) ** <br /> MW4-6 ND 100* ND 100* 680 6 000 28 ND ND ND ND <br />' Unit ConV�rstons Anal Kcal <br /> Ft&AL parts per billion(ppb) BTEX bcn=e toluene ethyl benzt n� and xylene <br /> mog parts per million(ppin) TEPH total petroleum hydrocarbons quantified as kerosene,diesel and motor oil <br />' TPH-G total petroleum hydrocarbons quantified as gasoline <br /> MTBE methyl ternary butyl ether <br /> NVD none detected at or above laboratory detection limits <br /> ND X* none detected to a level of X <br /> *• all other gasoline adddrvesioxygenates were not detected at or above the laboratory reported <br /> detection limits <br /> Laboratory analysis of the groundwater samples indicated total petroleum hydrocarbons quantified as kerosene, <br />' diesel, and motor oil (TEPIT), ethanol, DIPS 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 /> 1 <br />