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4 <br /> Union Ice Chronology DRAFT <br /> Page 2 <br /> Soil Sample Results from Tank Removal <br /> Sample Benzene Toluene Xylene Ethyl TPH- TPH- Kerosene Motor Tetra EDB <br /> ID/Depth Benzene gas diesel Oil Ethyl <br /> Lead <br /> 2357-1A <0.1 <0.1 <0.1 <0.1 <5.0 48• <20 <200 <br /> East @ 14' <br /> 2357-1A <1.0 <1.0 <1.0 <1.0 <50.0 300' <100 <100 <br /> West@ <br /> 14.5' <br /> 2357-2A 1.1 5.7 19.0 <1.0 145.0 <10 <10 <100 <br /> East @ 14' <br /> 2357-2A <0.01 .012 .020 <0.01 1.1 <10 <10 <100 <br /> West @14' <br /> 235743 .075 .440 1.2 .280 14.0 95" <20 <200 <br /> @14' <br /> 1283-1B <.050 <.050 <.050 <.050 <.5 17• <10 <100 <.5 <.010 <br /> South @ 14' <br /> 1283-18 <1.0 <1.0__] 3.7 <1.0 <5.0 580" <200 <200 <.5 <.010 <br /> North @ 14' <br /> A resu is in mg/kg (ppm) <br /> `Very weathered hydrocarbon pattern <br /> 1989 <br /> 8124189 The groundwater investigation was initiated with the installation of MW1 S, <br /> MW1 D, and MW6S. See monitoring well construction details below and <br /> boring logs that are attached. Soil samples were not collected for laboratory <br /> analysis during the installation of these wells. <br /> 1990 <br /> 315190 The groundwater investigation was continued with the installation of MW2S, <br /> MW3S, MW41D, MW4S, MW5S, and MW7S. See monitoring well <br /> construction details below and the boring logs that are attached. Selected <br /> soil samples were submitted for laboratory analysis and the results are <br /> included in the table: Soil Sample Analytical Results-March 1990. <br /> 713190 Soil gas samples were were collected and submitted to Barringer <br /> Laboratories for analysis. See the attached laboratory data sheet and soil <br /> gas vapor survey points map. <br />