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1 [RE(EPMD - G <br />' Closure Summary Report OCT 2 4 2003 <br /> • GRANT LINE GAS & FOOD ENVIRUWILN i HEALTH <br /> 2420 Grant Line Road, Tracy, California PERMIT/SERVICES <br /> 1 <br /> TABLE OF CONTENTS <br /> 1 <br /> SECTION PAGE <br /> 1 1.0. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br />' 2.0. BACKGROUND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br /> 21 SITE LOCATION 1 <br /> 22 UNDERGROUND STORAGE TANK REMOVAL 1 <br />' <br /> 23 PREVIOUS SITE INVESTIGATION 2 <br /> 24 REGIONAL GEOLOGIC SETTING 3 <br /> 25 GROUND WATER DEPTH AND GRADIENT 4 <br /> 3.0 GROUND WATER MONITORING EVENTS: JANUARY 1994 TO JUNE 2003 . 4 <br />' 4.0. WATER WELL RECEPTOR SURVEY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 <br />' <br /> 50. ASSESSMENT OF PETROLEUM HYDROCARBON-IMPACTED SOIL AND <br /> GROUND WATER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 <br /> 51 HYDROCARBON-IMPACTED SOIL 5 <br />' 5 2 HYDROCARBON-IMPACTED GROUND WATER 6 <br /> 6.0. DISCUSSION AND CONCLUSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 <br />' 70. RECOMMENDATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 <br />' 8.0. LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 <br />' FIGURES <br /> Figure 1 -Location Map <br />' Figure 2 - Site Plan <br /> Figure 3 - Ground Water Elevation Map -June 2003 <br /> Figure 4 - Sensitive Receptor Survey <br /> Figure 5 - Geologic Cross Section A -A ' <br /> Figure 6 - Geologic Cross Section B -B' <br /> Figure 7 -Approximate Extent Of Impacted Soil <br /> IFigure 8 -Approximate Extent Of Impacted Ground Water <br /> • <br /> I <br />