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I <br /> Quarterly Report - First Quarter 2003 <br /> 4 WEST CLAY PROPERTIES <br /> 639 West Clay Street, Stockton, California <br />' TABLE OF CONTENTS <br /> , <br /> SECTION PAGE <br /> 1.0. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br /> 2.0 PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br /> 2 1 QUARTERLY GROUND WATER MONITORING 3 <br /> 2 1 1 Well Monitoring and Evacuation 3 <br />' 2 1 2 Collection and Analysis of Ground Water Samples 4 <br /> 3.0., FINDINGS . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . 4 <br />' 31 GROUND WATER GRADIENT AND FLOW DIRECTION STRATIGRAPHY 4 <br /> 32 ANALYTICAL RESULTS OF WATER SAMPLES 5 <br />' 4.0. SUMMARY AND CONCLUSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S <br /> , 3 <br />' 5.0 LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 <br /> FIGURES <br /> FIGURE 1 -Location Map <br /> FIGURE 2 -Site Plan <br />' h FIGURE 3 - Ground Water Elevations <br /> FIGURE 4 - Shallow Ground Water Contamination Plume <br /> FIGURE 5 -Deep Ground Water Contamination Plume <br /> I „ <br /> TABLES <br />' TABLE 1 - Ground Water Elevations' <br /> TABLE 2 -Analytical Results of Ground Water Samples - TPH and BTEX <br /> TABLE-3 -Analytical`Results of Ground WateY Samples-EPA Methods 8260E- - - <br />' TABLE 4 -Analytical Results of Historical Ground Water Samples -- TPH and BTEX <br /> TABLE 5 -Analytical Results of Historical Ground Water Samples - 8260B <br /> APPENDICES <br /> r <br />' APPENDIX A -Field Logs <br /> APPENDIX B -Laboratory Report - Ground Water Samples <br /> Advanced GeoEnvironmentni,Inc <br />