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I IV <br /> a <br /> s <br /> { <br /> SECTION 2 <br /> _ <br /> SOIL AND GROUNDWATER <br /> INVESTIGATION WORKPLA1V <br /> This section outlines proposed work to better define the extent of <br /> contaminated soil remaining at the site and determine if <br /> groundwater has been impacted by the product in the soil. Following <br /> determination of the status of the groundwater at the site, we will <br /> propose any necessary remediation measures for review by the San <br /> Joaquin County Environmental Health Division and the Central <br /> Valley Regional Water Quality Control Board. <br /> Scope of Work <br /> This section outlines a scope of work to achieve the following <br /> objectives: <br /> Better define the extent of contaminated soil remaining <br /> in the ground around two areas of higher contamination <br /> identified in the October 1990 investigation; <br /> 4 <br /> • Excavate and stockpile remaining contaminated soil <br /> from these two areas; <br /> • Determine if groundwater has been impacted by the <br /> hydrocarbon constituents in the soil; <br /> • Define boundaries of the contaminated groundwater <br /> plume (if possible); <br /> • Determine volume of the excavation and stockpiled soil; <br /> and <br /> Determine concentrations of constituents in stockpiled <br /> soil. <br /> The tasks to be performed to achieve these objectives are described in <br /> detail below. <br /> 2-I . <br />