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clays were interspersed with lenses of clay ranging from 1 to 5 feet in thickness. During boring activities <br /> groundwater was typically encountered approximately 5 to 8 feet bgs. Boring logs and well completion details <br /> for recently installed monitoring wells (i.e.; MW-65B, MW-67UA, MW-68A and MW-69UA) are presented in <br /> Appendix C. Generalized geologic cross-sections are presented as Figures 3 and 4. <br /> 2.3.2 Soil Analytical Data <br /> Selected soil samples were analyzed by Lancaster Laboratories Incorporated (Lancaster) of Lancaster, <br /> Pennsylvania. Soil samples were analyzed for the following constituents: <br /> • TPHg and TPHd using United States Environmental Protection Agency (EPA) Method 8015; <br /> • benzene, toluene, ethylbenzene, and total xylenes (BTEX), MtBE, tertiary butyl alcohol (TBA), ethyl <br /> tertiary butyl ether (EtBE), di-isopropyl ether (DIPE), tertiary amyl methyl ether (TAME), methanol, <br /> ethanol, 1,2-dibromethane (EDB), and 1,2-dichloroethane (1,2-DCA) by EPA Method 8260B; and <br /> • total lead by EPA Method 6010B. <br /> Copies of the laboratory analytical reports and chain-of-custody documentation are presented in Appendix D. <br /> Soil analytical results from this assessment activity and the UST removal are presented in Table 6. Soil <br /> analytical results from this assessment are summarized below. <br /> SOIL ANALYTICAL RESULTS FOR MW-69UA <br /> Number of Detections -Minimum.,, Maximum <br /> Above the MDL of the Detection in mglkg' Detection in mglkg. <br /> Constituents 3 Total'Sari les jSample ID (Sample ID <br /> TPHg 3 1.2 (MW-69UA-S-13.5) 1,100 (MW-69UA-S-7) <br /> TPHd 1 <10 (MW-69UA-S-10.5) 1,400 (MW-69UA-S-7) <br /> Benzene 2 0.002 (MW-69UA-S-10.5) 0.24 (MW-69UA-S-7) <br /> Toluene 1 <0.001 (MW-69UA-S-10.5) 0.002 (MW-69UA-S-13.5) <br /> Ethylbenzene 2 0.002 (MW-69UA-S-10.5) 1.2 (MW-69UA-S-7) <br /> Total Xylenes 3 0.003 (MW-69UA-S-13.5) 5.5 (MW-69UA-S-7) <br /> MtBE 1 <0.0005 (MW-69UA-S-13.5) 0.001 (MW-69UA-S-10.5) <br /> Methanol 2 0.37(MW-69UA-S-10.5) 0.4 (MW-69UA-S-7) <br /> Total Lead 3 6.02 (MW-69UA-S-10.5) 7.44 (MW-69UA-S-13.5) <br /> Explanations: <br /> TPHg =Total petroleum hydrocarbons as gasoline <br /> TPHd =Total petroleum hydrocarbons as diesel <br /> MtBE = Methyl tertiary butyl ether <br /> MW-69UA-S-13.5= Soil boring sample MW-69UA at 13.5 feet bgs <br /> MDL= Method detection limit <br /> mg/kg = Milligram per kilogram <br /> • <br /> BLASLAND, BOUCK & LEE, INC. <br /> 3124106 engineers,scientists,economists 2-6 <br /> J:\D0006\44634_00161022_Conceptual Site Model,doc <br />