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PRELIMINARY ENVIRONMENTAL ASSESSMENT WORKPLAN <br /> FOR THE PROPOSED PODESTA RANCH ELEMENTARY SCHOOL <br /> TABLE OF CONTENTS <br /> 1.0 Introduction..................................................................................................... 1 <br /> 1.1 Purpose and General Scope of Work................................................................ 1 <br /> 1.2 Involved Parties............................................................................................... 1 <br /> 1.3 General Contents ............................................................................................. 1 <br /> 2.0 Site Description............................................................................................... 1 <br /> 2.1 Site Identification ............................................................................................2 <br /> 2.2 Site Map..........................................................................................................2 <br /> 3.0 Background .....................................................................................................2 <br /> 3.1 Site Status and History.....................................................................................2 <br /> 3.2 Hazardous Substances/Waste Management Information...................................3 <br /> 3.2.1 The Site...........................................................................................................3 <br /> 4.0 Potential Environmental Concerns...................................................................5 <br /> 5.0 Envirnomental Setting .....................................................................................6 <br /> 5.1 General Geologic Conditions and Topography.................................................6 <br /> 5.2 General Soil Conditions...................................................................................6 <br /> 5.3 General Hydrogeological Conditions ...............................................................6 <br /> 6.0 Proposed PEA Scope of Work .........................................................................6 <br /> 6.1 Conceptual Site Model.....................................................................................7 <br /> 6.2 Proposed Sampling and Analytical Testing Plan ..............................................7 <br /> 6.2.1 Site Surface Soil Samples................................................................................7 <br /> 6.2.1.1 Structures ...................................................................................................... 10 <br /> 6.2.1.2 Garage Interior .............................................................................................. 10 <br /> 6.2.1.3 Former Barn .................................................................................................. 10 <br /> 6.2.1.4 Agricultural Field .......................................................................................... 10 <br /> 6.2.1.5 Potential Fill Material Area............................................................................ 10 <br /> 6.2.2 Background Subsurface Soil Sampling .......................................................... 1 1 <br /> 6.3 Proposed Sample Collection and Health and Safety Procedures..................... 12 <br /> 6.3.1 Non Volatile Samples.................................................................................... 12 <br /> 6.3.2 Volatile Samples............................................................................................ 12 <br /> 6.4 Human Health Risk Assessment .................................................................... 13 <br /> 6.4.1 Potential Exposure Related to Soil Pathways ................................................. 13 <br /> 6.4.2 Potential Exposure Related to Water Pathways .............................................. 13 <br /> 6.4.3 Potential Exposure Related to Air Pathways .................................................. 13 <br /> 6.5 Community Profile and Public Notification ................................................... 13 <br /> 6.6 Draft and Final PEA Reports ......................................................................... 14 <br /> 7.0 Anticipated Schedule..................................................................................... 14 <br /> 8.0 References..................................................................................................... 15 <br /> 9.0 Signatures...................................................................................................... 16 <br />