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John Pestrana QTip Tru -2- 14 April 22, 2009 <br /> Claim No. 3484 <br /> EXAMPLE OF CLOSURE REQUEST REPORT <br /> TABLE OF CONTENTS <br /> 1.0 INTRODUCTION <br /> 2.0 SITE BACKGROUND <br /> 2.1 Site Description <br /> 2.2 Regional Geology and Hydrogeology <br /> 2.3 Local Geology and Hydrogeology <br /> 2.4 Sensitive Receptor Survey <br /> 2.5 Conduit Survey <br /> 3.0 PREVIOUS INVESTIGATIONS <br /> 4.0 HYOROCAR1304 ?ISTRIBUTION. _ <br /> 4.1 Hydrocarbon Distribution in Soil <br /> 4.2 Hydrocarbon Distribution in Groundwater <br /> 5.0 RISK ASSESSMENT <br /> 5.1 Tier 1 Risk Evaluation <br /> 5.2 Conceptual Site Model <br /> 5.3 Results of Tier 1 Evaluation <br /> 6.0 LOW RISK GROUNDWATER CASE CLOSURE <br /> 6.1 Leak Has Stopped - Ongoing Sources Removed <br /> 6.2 Site is Adequately-Characterized <br /> 6.3 Dissolved Hydrocarbon Plume Is Not Migrating <br /> 6.4 Sensitive Receptors &Water Wells Not Likely to be Impacted <br /> 6.5 No Significant Risk to Human Health or Environment <br /> 7.0 CONCLUSIONS AND RECOMMENDATIONS <br /> FIGURES <br /> 1. Vicinity Map <br /> 2. Site Plan <br /> 3. Groundwater Elevation Contours <br /> 4. Hydrocarbon Concentration Contours <br /> 5. Trend Analysis Graphs and Plots <br /> 6. Conceptual Site Model Exposure Pathway <br /> TABLES <br /> 1. Groundwater Elevation and Analytical Data <br /> 2. Soil analytical Data <br /> 3. Monitoring.Well Construction Details <br /> 4. 95% UCL Calculations <br /> APPENDICES <br /> A. Boring and Well Logs <br /> B. Sensitive Receptor Survey <br /> C. Trend Analysis Data <br /> D. Closure Summary Form <br /> CaBforms Envhvnmentd Protection Agency <br /> Q0Recycled P:per <br />