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� I <br /> 1 <br /> i ' Mr Nuel Henderson <br /> Page 6 of 9 <br /> It <br /> i <br /> ' Soil Analytical Results <br /> TPHg and BTEX were not detected in borings MW15A or MW15B 1,2 DCA and EDB were <br /> not detected in any borings MTBE was not detected in boring MW15A and MW16B <br /> Low levels of TPHg were detected in boring MW16A at depths of 20 and 45 feet bgs and in <br /> ' boring MW16B at a depth of 80 feet bgs Low levels of benzene were detected in boring <br /> MW16A at a depth of 45 feet bgs, and at a depth of 80 feet bgs in boring MW16B Minor <br /> concentrations of MTBE were reported at a depth of 70 feet in MW15B and at depths of 40 and <br /> ' 45 feet bgs in boring MW16A Soil analytical data are summarized in Table 3 Laboratory <br /> reports and chain of custody documentation are included in Attachment C <br /> ' Groundwater Analytical Results <br /> Hydropunch Samples <br /> ' BTEX and EDB were not detected in either of the Hydropunce groundwater samples collected <br /> from borings MW15A and MW15B TPHg was detected in boring MW15A at a concentration <br /> lie <br /> of 170 parts per billion (ppb) and in boring MW15B at a concentration of 58 ppb TPHg <br /> detected in boring MW15A was primarily composed of MTBE MTBE was the only gasoline <br /> oxygenate additive detected MTBE was reported at concentrations of 180 ppb and 16 ppb in <br /> borings MW15A and MW1513, respectively 1,2 DCA was only detected in boring MW15B at a <br /> concentration of 14 ppb Analytical results are summarized in Table 3 Laboratory reports and <br /> chain of custody documentation are included in Attachment C <br /> tMonitoring Well Samples <br /> ' High levels of TPHg and BTEX were present in the sample collected from MW13B No <br /> oxygenates or additives were detected No TPHg or BTEX were detected in the sample from <br /> MW15A, however MTBE was present at a concentration of 34 ppb In well MW15B TPHg was <br /> present at a concentation of 220 ppb along with traces of toluene and xylenes, 76 ppb MTBE and <br /> 5 5 ppb 1,2-DCA In the sample from well MW15C, TPHg and BTEX were found at <br /> concentrations dust above the laboratory detection limit No oxygenates or additives were <br /> ' detected in the sample from this well Relatively lugh levels of TPHg, BTEX and MTBE were <br /> reported from wells MW16A and MW16B Analytical results for TPHg, BTEX and MTBE are <br /> summarized in Table 4 The results for the suite of oxygenates and additives are summarized in <br /> tTable 5 Laboratory reports and chain of custody documentation are included in Attachment C <br /> 11GZA FSIVOL 11DATAIGROUNUZi,IROEX\CWSURE1Rep nslAdd_F#SA Mud wells doe <br />