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Q <br /> ASSOC 1 A T E S I N C . <br /> 1 <br /> was calculated to be 0.001 ft/ft or approximately 5 ft/mile. A summary of groundwater <br /> monitoring data is presented in Table 2. <br /> ' 4.4 RESULTS <br /> ' 441 Soil Analytical Results <br /> The soil sample collected from boring MW2 at a depth of 35.5 feet bgs contained the highest <br /> concentrations of TPHg, ethyl benzene and xylenes. The soil samples collected from boring MW2 <br /> at depths of 30 feet bgs and 55 feet bgs contained only trace concentrations of TPHg, ethyl <br /> benzene and/or xylenes. <br /> The soil samples collected from borings MW1 and MW3 at depths of 35 feet bgs contained a <br /> ' trace concentration of xylenes and TPHg, respectively. The samples collected from borings MW 1 <br /> and MW3 at depths of 40 feet bgs did not contain detectable concentrations of TPHg or BTEX. <br /> ' MTBE, TAME, TBA, ETBE, DIPE, 1,2-DCA, or EDB were not detected in any soil samples <br /> collected from borings MW 1, MW2, and MW3, though the detection limits were elevated in the <br /> MW2 sample from 35.5 feet bgs due to the high concentrations of TPHg noted previously. <br /> �1 Total lead was detected in the sample cam osited from borings MW1, MW2, and NM at a <br /> p p g <br /> concentration that is considered to be a background level. <br /> ' Analytical results of soil samples are summarized in Table 1. Laboratory data sheets and chain-of- <br /> custody documentation are presented in Appendix B. <br /> ' 4.2 Groundwater Analytical Results <br /> The groundwater samples collected from wells MW 1, MW2, and MW3 contained detectable <br /> concentrations of TPHg and BTEX. The groundwater sample collected from well MW2 <br /> ' contained the highest concentrations but only benzene exceeded its respective maximum <br /> contaminant level (MCL). <br /> The groundwater samples collected from wells MW 1, MW2, and MW3 also contained detectable <br /> concentrations of MTBE and 1,2-DCA. Additionally, the sample collected from MW2 contained <br /> a detectable concentration of TBA. None of the groundwater samples collected contained <br /> detectable concentrations of TAME, ETBE, DIPE, or EDB. <br /> Analytical results of groundwater samples are summarized in Table 3. Laboratory data sheets and . <br /> chain-of-custody documentation for groundwater samples are contained in Appendix D. <br /> ,1 <br /> w:192054.0001rreporlslsumii.doc 5 <br /> l <br />