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Environmental Site Assessment <br /> • MOUNTAIN HOUSE MACHADO PROPERTY <br /> San Joaquin County, California <br /> TABLE OF CONTENTS <br /> INTRODUCTION........................................................................................................................I <br /> Purposeand Scope........................................................................................... .......................I <br /> FINDINGS...................................................................................................................................3 <br /> SiteDescription........................................................................................................................3 <br /> WindshieldSurvey........................... .......................................................................................4 <br /> SiteHistory...............................................................................................................................4 <br /> Ownership............................................................................................................................4 <br /> Interview..............................................................................................................................A <br /> ArchivedBuilding Records..................................................................................................5 <br /> AgriculturalReview.................................................................................................................5 <br /> Historic Topographic Maps Review........................................................................................5 <br /> 1914 Map..............................................................................................................................6 <br /> 1978 Map..............................................................................................................................6 <br /> AerialPhotographic Review....................................................................................................6 <br /> July10, 1963 Air Photos......................................................................................................6 <br /> • November 11, 1975 Air Photos.,..........................................................................................7 <br /> June22, 1999 Air Photos.....................................................................................................7 <br /> Hydrogeologic and Soils Settings............................................................................................7 <br /> Groundwater.........................................................................................................................7 <br /> RegionalGeology.................................................................................................................8 <br /> Soils......................................................................................................................................8 <br /> Radon Potential....................................................................................................................9 <br /> MunicipalInfrastructure...........................................................................................................10 <br /> PotableWater Supply...........................................................................................................10 <br /> WastewaterManagement.....................................................................................................10 <br /> StormwaterManagement.....................................................................................................10 <br /> AgencyDatabase Review.........................................................................................................10 <br /> Stateand County Databases.................................................................................................I I <br /> California Division of Oil and Gas ......................................................................................12 <br /> CONCLUSIONS........................................................................*'*"***....******'**...*.......... ..............12 <br /> LIMITATIONS............................................................................................................................13 <br /> • <br /> INK <br /> WALLACC-KUHL <br />