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Site Discovery <br /> Soil borings to determine lateral GW <WQOs Soil Case: assess human health <br /> and vertical extent; groundwater risk and interact with Cou <br /> screening nty <br /> GW z WQOs <br /> Groundwater Case: determine <br /> lateral and vertical extent in <br /> groundwater <br /> ® Install monitoring wells; <br /> implement quarterly <br /> groundwater monitoring <br /> program <br /> Lsessman health risk <br /> © After four quarterly monitoring <br /> events,compare site data to <br /> RWQCB Low Risk Criteria; EXPLANATION <br /> document site conditions in WQOs = RWQCB Water Quality Objectives <br /> remedial closure <br /> request <br /> for protection of beneficial use of <br /> study or closure request groundwater <br /> Figure <br /> //94na OLD VALLEY PIPELINE SITE EVALUATION FLOW CHART 2 <br /> GEOMATRIX Chevron Pipe Line Company Project No. <br /> 3761.01 <br /> 0761.001 <br />