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I TABLE OF CONTENTS <br /> 1.0 EXECUTIVE SUMMARY . ......... .. ............. .... .............................. .... ... .... ... 1 <br /> 2.0 SITE DESCRIPTION AND BACKGROUND.. ........................ .. ............ .. ....3 <br /> 21 Site Setting 3 <br /> 22 Topography and Surface Conditions 3 <br /> 22 1 Drainage 3 <br /> 222 Land Use 3 <br /> 223 Meteorology Data 4 <br /> 3.0 SITE CHARACTERIZATION ACTIVITIES.. .. ... ... . .................... ............. 5 <br />' 3 1 Historical Summary 5 <br /> 32 2006 Site Characterization Activities 6 <br /> 32 1 Field Activities 6 <br />' 3 2 2 Analytical Methods 7 <br /> 4.0 SUBSURFACE CONDITIONS. ... ..... .............. ..... ................. ..... ... . ......... . 8 <br />' 4 1 Geologic Conditions 8 <br /> 42 Hydrogeology 8 <br /> 43 Extent of Petroleum Hydrocarbon Impact to Soil 8 <br />' 44 Extent of Petroleum Hydrocarbon Impact to Groundwater 4 <br /> 5.0 REMEDIAL ACTIONS........... . ............... ... .. . ............... ... .... ................. . . 10 <br /> 5 1 Soil Excavation 10 <br />' . <br /> 52 Soil Vapor Extraction 10 <br /> 5 3 Bioventing 10 <br />' <br /> 60 EXPOSURE PATHWAYS AND RECEPTOR SURVEY.. .... ............ ........ 11 <br /> 61 Potential On-site Exposure Pathways 11 <br /> 61 1 Subsurface Soils 11 <br />' 612 Volatilization 1I <br /> 613 Groundwater 11 <br /> 62 Potential Off-site Receptors - Water Supply Wells 11 <br />' 7.0 SUMMARY AND DISCUSSION........ .. .......... . .... .......... ..... ................... .. 13 <br /> 71 Summary 13 <br />' <br /> 72 Discussion 14 <br /> 73 Recommendation 14 <br /> 8.0 LIMITATIONS.. ............ .... ...... ... .. ........... ..... ........... .... .................. ... ..... 15 <br /> 1 <br /> 1 <br /> KITeichert\Slockton-1031Reportslscm 04-2006 doe Page 111 OMATUS <br />