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i <br /> Quarterly Report - Fourth Quarter 2003 and First Quarter 2004 <br /> • YAMADA BROTHERS <br /> 15406 South Tracy Boulevard, Stockton, California <br /> TABLE OF CONTENTS <br /> ISECTION PAGE <br /> 1.0. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br />' 2.0. PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br /> 21 QUARTERLY GROUND WATER MONITORING EVENTS 1 <br />' 2 1 1 Well Monitoring and Evacuation I <br /> 2 12 Collection and Analysis of Ground Water Samples 2 <br /> 2 1 3 Purge Water Disposal 2 <br /> 22 RESURVEY OF MONITORING WELLS 2 <br /> 3.0. FINDINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 <br /> I 3 1 GROUND WATER GRADIENT AND FLOW DIRECTION 3 <br /> 32 ANALYTICAL RESULTS OF WATER SAMPLES 3 <br /> 10 4.0. SUMMARY AND CONCLUSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 <br /> 5.0. RECOMMENDATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 <br />' <br /> 6.0. LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 <br /> FIGURES <br />' Figure 1 -Location Map <br /> Figure 2 - Site Plan <br />' Figure 3 - Ground Water Contour Map - 16 December 2003 <br /> Figure 4 - Ground Water Contour Map - 25 March 2004 <br /> Figure 5 - Hydrocarbon-Impacted Ground Water - 16 December 2003 <br />' Figure 6 -Hydrocarbon-Impacted Ground Water- 25 March 2004 <br /> 1 <br /> I <br />' Advanced GeoEnvironmental,Inc <br />