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WGR <br /> Southwest, Inc. <br /> • TABLE OF CONTENTS <br /> LIMITATIONS,WARRANTIES AND CERTIFICATION..................................................IV <br /> 1.0 INTRODUCTION....................................................................................................................1 <br /> 2.0 PURPOSE OF INVESTIGATION.........................................................................................1 <br /> 3.0 SCOPE AND LIMITS OF INVESTIGATION.....................................................................1 <br /> 4.0 SITE DESCRIPTION..............................................................................................................2 <br /> 4.1 SITE SETTING...........................................................................................................................2 <br /> 4.2 SITE FEATURES........................................................................................................................3 <br /> 5.0 SITE HISTORY.......................................................................................................................4 <br /> 5.1 CURRENT USAGE.....................................................................................................................4 <br /> 5.2 HISTORICAL USAGE.................................................................................................................4 <br /> 5.3 PREVIOUS INVESTIGATIONS......................................................................................................5 <br /> 5.4 PHASE I ENVIRONMENTAL SITE ASSESSMENT..........................................................................7 <br /> 5.4.1 HEA vYMETALS......................................................................................................................7 <br /> 5.4.2 STORM WATER MANAGEMENT PRACT/CES...............................................................................7 <br /> 5.4.3 LEAKAGE FROM LISTS AND ASTS............................................................................................8 <br /> 5.4.4 PCB CONTAMINATION AND CONCERNS...................................................................................8 <br /> 5.4.5 SURFACE STAINING AND DOCUMENTED PETROLEUM RELEASES...............................................9 <br /> 5.4.6 EQUIPMENT WASH AREA AND DISPOSAL OF WASH WATER.....................................................10 <br /> 5.4.7 RAD/OACTIVITY....................................................................................................................11 <br /> 5,4.8 IMPROPER STORAGE.............................................................................................................11 <br /> 5.4.9 DOCUMENTED IMPROPER HANDLING OF HAZARDOUS MATERIALS AND PETROLEUM <br /> HYDROCARBONS...........................................................................................................................11 <br /> 5.4.10 BATTERIES AND QUALITY CONTROL ISSUES.........................................................................12 <br /> 5.4.11 AUTOMOBILE DEBRIS ON SOUTH DITCH BANKS...................................................................12 <br /> 5.4.12 VEHICLE AND TIRE STORAGE..............................................................................................13 <br /> 5.4.13 ADJACENT PETROLEUM TERMINAL.....................................................................................13 <br /> 6.0 GEOLOGY AND HYDROGEOLOGY...............................................................................14 <br /> 6.1 PHYSICAL SETTING................................................................................................................14 <br /> 6.2 GEOLOGIC CONDITIONS .........................................................................................................14 <br /> 6.3 GROUNDWATER CONDITIONS.................................................................................................15 <br /> 7.0 PRE-FIELD ACTIVITIES ...................................................................................................15 <br /> 7.1 PERMITTING...........................................................................................................................15 <br /> 7.2 HEALTH AND SAFETY PLAN...................................................................................................16 <br /> • 7.3 DRILL SITE CLEARANCE AND SITING OF BORINGS .................................................................16 <br /> 704. PR1.05 i July 21, 2008 <br />