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AM <br /> amea& <br /> TABLE OF CONTENTS <br /> Page <br /> 1.0 INTRODUCTION.......................................................................................................... 1 <br /> 1.1 PROJECT DESCRIPTION AND OBJECTIVE .............................................................. 1 <br /> 1.2 SCOPE OF WORK................................................................................................ 2 <br /> 2.0 BACKGROUND GEOLOGY AND HYDROGEOLOGY ................................................. 3 <br /> 2.1 REGIONAL.......................................................................................................... 3 <br /> 2.2 SITE SPECIFIC....................................................................................................4 <br /> 2.2.1 Lathrop Facility......................................................................................4 <br /> 2.2.2 French Camp Facility.............................................................................4 <br /> 3.0 FIELD ACTIVITIES....................................................................................................... 5 <br /> 3.1 GROUNDWATER MONITORING AND SAMPLING ACTIVITIES......................................5 <br /> 3.2 FIELD QUALITY ASSURANCE/QUALITY CONTROL SAMPLES.................................... 6 <br /> 4.0 GROUNDWATER MONITORING RESULTS................................................................ 6 <br /> 4.1 GROUNDWATER GRADIENT AND FLOW DIRECTION................................................6 <br /> 4.1.1 Lathrop Facility......................................................................................6 <br /> 4.1.2 French Camp Facility.............................................................................7 <br /> 4.2 GROUNDWATER SAMPLE ANALYTICAL RESULTS ................................................... 7 <br /> 4.2.1 Lathrop Facility...................................................................................... 7 <br /> 4.2.2 French Camp Facility............................................................................. 8 <br /> 4.3 QUALITY ASSURANCE AND QUALITY CONTROL RESULTS....................................... 9 <br /> 5.0 SUMMARY................................................................................................................. 11 <br /> 6.0 CONCLUSIONS ......................................................................................................... 13 <br /> 7.0 REFERENCES........................................................................................................... 14 <br /> TABLES <br /> Table 1 Groundwater Levels and Elevations <br /> Table 2 Groundwater Analytical Results — Lathrop Facility <br /> Table 3 Groundwater Analytical Results — French Camp Facility <br /> FIGURES <br /> Figure 1 Site Location Map <br /> Figure 2 Groundwater Elevation Contour Map, Lathrop Facility <br /> Figure 3 Groundwater Elevation Contour Map, French Camp Facility <br /> Figure 4 TPH-diesel, Cr, and Cr VI Concentrations in Groundwater Samples, <br /> Lathrop Facility <br /> Figure 5 TPH-diesel, Cr, and Cr VI Concentrations in Groundwater Samples, <br /> French Camp Facility <br /> AMEC Geomatrix, Inc. <br /> PA10626.000.00ocs\Semi-Annual Groundwater Monitoring&Sampling\Semi-Annual 1-10 I <br />