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f, <br /> i <br /> ' CHAPTER 5 <br /> �xY <br /> CONCLUSIONS <br /> Theca conclusions have been made after reviewing the data available for the Geweke Land <br /> r <br /> Development and Marketing site. <br /> Groundwater containing dissolved petroleulm hydrocarbon constituents has <br /> migrated off site beyond the locations of the monitoring wells installed during <br /> this investigation in concentrations that exceed the Calkfnrnia Department of <br /> Health Services maximum contaminant levels for constituents of hydrocarbons <br /> in groundwater. <br /> The soil samples that contained detectable concentrations of hydrocart�ons were <br /> located in the partially saturated zone of a previously saturated zone (capillary <br /> 7; fringe). Groundwater elevations in this area have steadily been lowered because <br /> ?` s of purrping and 4 years of lower-than-rorrnal rainfall. <br /> iT. <br /> f <br /> i <br /> r. <br />