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i In accurdance with the work plan, Condor conducted an additional soil and groundwater investigation on September i 0 15 and 18, 1997, at the Site I`our monitor wells were drilled, installed, developed, ,ui veyed, and trampled as part of the investigation Fhe Report - Additional Sod and bioundivater Investigation dated DLCcinber I t, 1997 was prepared by Condor describing the investigation results Laboratory analysis of the soil samples indicated that total petroleum hydrocarbons quantified as kerosene, diesel, and motor oil (TUPH), ethanol, tertiary butanoi, DIPS, ETBE and (TAME) were not detected at or above the laboratory reported detection limits in any of the samples collected trom the monitoring wells during the September, 1997, sampling event BTEX, TPH-G, and MTBE were not detected at or above the laboratory reported detection limits in the soil Sample collected from MW-1 at a depth of six feet bgs Benzene, ethyl bcnzcne and xylene were not detected at or above the laboratory reported detection limits in the soil sample collected from MW-2 at a depth of four feet bgs toluene, IPH-G and MTBE were detected ni the. soil sample collected from MW-2 at a depth of four feet bgs (16 }tg/kg, 1 2 mg/kg and 1,300 pg/kg, respcetively) Benzene and toluene were not detected at or above the raised laboratory reported detection limit in the soil sample collceted from MW-4 at a depth of six feet bgs M fBE was not detected at or above the laboratory reported detection limit in the. sample collected from MW-4 at a depth of six feet Ethyl benzene, xylene and FPII-G were detected ni the, soil sample collected from MW-4 at a depth of six feet (680 }tg/kg, 6,000 µ/kg, and 28 mg/kg, respectively) A ,ummary of the laboratory analytical results of the soil samples are presented below in Table as TABLE B.5 Soil Sample Analytical Results B T E X l PTI-C Gasoline TEPH Oxygenatt.s/ Additives Kerosene DIe4el Motor Oil DLtLctsull 5 0 5 0 5 0 5 0 1 0 ]DID 1 0 1 0 100 I Imit" pg/kg pg/kg 11Plkg ILg/kg mg/kg µg/kg mg/kg mg,/kg mg/kg Sample ID MW 1-6 ND ND ND ND ND ND ND ND ND MW24 IN 1) 16 ND ND 12 1300 ND ND ND (MIBE) ** MW4-6 ND 100* ND 100* 680 6 000 28 ND ND ND ND 1 inti(onsUsunts Anal tmal µ6c6 parts per billion(ppb) RTI X bLnR'ne tnlwmc ethyl heni_ene and x)]Lne M&f 1, patty par million(ppm) TFPF1 total petroleum hydrocarbons quantarted as kcrosenL dnscl and motor ml I P14-6 total petroleum hydrocarbons qu-intrficd as&asolmc MTBE methyl tertiary butyl cthcr ND none detected at or above laboratory detLetton limits NDX* none detected to a Icvcl of X all other gasoline addtttves/oxygcnatea wire not det4ctcd at or abovt!hc liboratory sported E dd"tion limits Laboratory analysis of the. groundwater samples indicated total petroleum hydrocarbons quantified as kerosene, diesel, and motor oil (TEPH), ethanol, DIPE and ETBE were not detected at or above the laboratory reported detection limits in any of the groundwater samples collected from the monitoring wells during the September, 1997, sampling event BTEX, the selected gasoline oxygenates/additives and I'PH-G were not detected at or above the laboratory reported detection limits in the groundwater sample collected from MW-1 Toluene, ethyl I