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r <br /> rReport of Findings <br /> Frontier Transportation <br /> I August 26, 2003 <br /> Page 4 <br /> 5.0) CONCLUSIONS <br />' Based on soil sample results from monitoring well MW-14, shallow MTBE impacted soil <br /> extended from 5' to 10' bg The MTBE in soil may have adsorbed from dissolved phase when <br /> groundwater rose to 6' bg in March 1998 Furthermore, groundwater analysis from monitoring <br /> well MW-14 identified dissolved MTBE above the Maximum Contaminant Level (MCL) of 13 <br />' µg/L set by the California Department of Health Services <br /> 6.0) RECOMMENDATIONS <br /> IMonitoring well MW-14 identified soil and groundwater impacted with MTBE, therefore, <br /> BEII recommends that an additional site assessment be performed to delineate the extent of <br /> MTBE BEII will submit a work plan detailing the scope of the additional site assessment to the <br /> PHSIEHD within 45 days for approval Monitoring well MW-14 will be incorporated in future <br /> groundwater monitoring episodes —' <br /> r <br /> r • <br /> r <br /> r <br /> r <br /> r <br /> r <br /> r <br /> • <br /> r <br /> r <br />