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l <br /> Ile 10 October 2005 <br /> AGE-NC Project No 04-1168 <br /> IPage 5 of 7 <br /> bsg in boring MW 1 and 63 to 70 feet bsg in boring MW3,whereas a silty sand was encountered at <br />' approximately 70 feet bsg in boring MW2 <br />' Hydrocarbon odor was encountered at approximately 30 to 50 feet bsg in MW 1 and 45 to 60 feet bsg <br /> in MW2, and saturated soil samples were encountered beginning at 60 feet bsg (See Appendix B <br /> for boring logs) <br /> 32 ANALYTICAL RESULTS OF SOIL SAMPLES <br />' A total of 10 soil samples were analyzed for the constituents listed in section 2 1 1 <br />' TPH-g was detected in soil samples collected from borings MW 1 and MW2 at concentrations of 1 5 <br /> mg/kg (MW1 at 35 feet bsg) and 1 0 mg/kg (MW2 at 50 feet bsg) <br />' Total xylenes were detected in soil samples collected from borings MW 1, MW2 and MW3 at <br /> concentrations of 0 086 mg/kg (MW 1 at 35 feet bsg), 0 052 mg/kg (MW 1 at 45 feet bsg), 0 046 <br /> mg/kg (MW2 at 50 feet bsg), and 0 014 mg/kg (MW3 at 50 feet bsg) <br /> INo other constituents of concern were detected at or above laboratory detection limits in the samples <br /> analyzed Analytical results of soil samples are summarized in Table 2 <br /> I <br /> The laboratory reports (CTEL Project No CT214-0507130 , quality assurance and quality control <br /> (QA/QC) report, and chain-of-custody forms are included in Appendix E Documents confirming <br /> Ithe upload of laboratory electronic deliverable format(EDF)files and depth to water measurements <br /> to GeoTracker are included in Appendix F <br /> 1 <br /> 3 3 GROUND WATER GRADIENT AND FLOW DIRECTION <br />' At the time of the August 2005 sampling event, depths to ground water ranged from 56 37 (MW-2) <br /> to 57 28 feet (MW-1) below the tops of the well casings Ground water elevations at the site <br />' averaged approximately 32 52 feet below MSL(Table 1) During this monitoring event,the ground <br /> water levels in wells MW-1 through MW-3 were below the tops of the well screens, indicating that <br /> the wells are properly screened and representative of shallow ground water conditions <br />' Ground water flow was inferred to be flowing towards the southeast under an average hydraulic <br /> gradient of approximately 0 001 foot/foot (ft/ft) Figure 3 illustrates the contoured ground water <br />' elevations as measured on 05 August 2005 <br /> s <br /> Advanced GcoEnvironmcntal,Inc <br /> 1 <br />