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TABLE OF CONTENTS <br /> 1. INTRODUCTION................................................................................................................................... 1 <br /> 2. SITE DESCRIPTION AND HISTORY.................................................................................................. 1 <br /> 2.1 Geology and Hydrogeology.....................................................................................................2 <br /> 3. PREVIOUS ENVIRONMENTAL INVESTIGATIONS ........................................................................2 <br /> 4. FIELD ACTIVITIES...............................................................................................................................4 <br /> 4.1 Pre-field Goals.........................................................................................................................4 <br /> 4.2 Pre-field Activities...................................................................................................................4 <br /> 4.3 Soil Borings..............................................................................................................................4 <br /> 4.3.1 Soil Sample Collection................................................................................................5 <br /> 4.3.2 Grab Groundwater Sampling......................................................................................5 <br /> 5. RESULTS................................................................................................................................................6 <br /> 5.1 Soil Sample Analyses...............................................................................................................6 <br /> 5.1.1 Soil Sample Analytical Results...................................................................................6 <br /> 5.2 Grab Groundwater Sample Analyses.......................................................................................6 <br /> 5.2.1 Grab Groundwater Sample Analytical Results...........................................................6 <br /> 5.2.3 Investigation-Derived Waste.......................................................................................7 <br /> 6. WELL SEARCH RESULTS ...................................................................................................................7 <br /> 7. QUALITY ASSURANCE/QUALITY CONTROL ................................................................................7 <br /> 8. WELL SURVEY .....................................................................................................................................7 <br /> 9. WELL DEVELOPMENT........................................................................................................................7 <br /> 10. GROUNDWATER MONITORING AND SAMPLING........................................................................8 <br /> 10.1 Historical Monitoring and Sampling Data...............................................................................8 <br /> 10.2 April 2005 Monitoring and Sampling...................................................................................... 8 <br /> 10.3 Quality Assurance/Quality Control..........................................................................................9 <br /> 11. DISCUSSION.........................................................................................................................................9 <br /> 12. SUMMARY/CONCLUSIONS...............................................................................................................9 <br /> 13. REFERENCES ..................................................................................................................................... 10 <br /> FIGURES <br /> Figure I Site Vicinity Map and 2,000-Foot Well Search <br /> Figure 2 Site Map <br /> Figure 3 Soil Concentration Map <br /> Figure 4 Grab Groundwater Concentration Map <br /> Figure 5 Total Petroleum Hydrocarbon Distribution in Soil <br /> Figure 6 Total Petroleum Hydrocarbon Distribution in Groundwater <br /> Figure 7 Potentiometric Surface Map <br /> Figure 8 Second Quarter 2005 Groundwater Concentration Map <br /> i From Science to Solutions- <br />