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KLEINFELDER <br /> TABLE OF CONTENTS <br /> Chapter Page <br /> EXECUTIVE SUMMARY 1 <br /> 1 REGIONAL CHARACTERISTICS 3 <br /> 1.1 Topography 3 <br /> 1.2 Geology 3 <br /> 1.3 Hydrology 8 <br /> 1.3.1 Offsite Wells 8 <br /> 1.3.2 Ground Water Quality 9 <br /> 1.3.3 Hydrogeology 9 <br /> 1.3.4 Ground Water Gradient 9 <br /> 1.4 Land and Water Use 11 <br /> 1.5 Relationship of Site to Regional Setting 11 <br /> 2 LANDFILL CHARACTERISTICS 12 <br /> 2.1 Site Operation and Ownership 12 <br /> 2.2 Waste Disposal History 13 <br /> 2.2.1 Waste Characteristics and Volume 13 <br /> 2.2.2 Waste Disposal Methods 13 <br /> 2.3 Site Construction 14 <br /> 2.4 Site Closure 15 - <br /> 3 SOLID WASTE ASSESSMENT TEST INVESTIGATION 16 <br /> 3.1 Vadose Zone Assessment 16 <br /> 3.1.1 Drilling - 16 <br /> 3.1.2 Logging 17 <br /> 3.1.3 Sampling 17 <br /> 3.1.4 Soil Boring Closure 18 <br /> 3.2 Leachate Assessment 18 <br /> 3.3 Ground Water Assessment 18 <br /> 3.3.1 Drilling Procedures 18 <br /> 3.3.2 Filter Pack and Well-Screen Design 19 <br /> 3.3.3 Monitoring Well Construction 19 <br /> 3.3.4 Water Level Measurements 20 <br /> 3.3.5 Ground Water Sampling 20 <br /> 3.4 Surface Water Assessment 21 <br /> 4 SOLID WASTE ASSESSMENT TEST RESULTS 22 <br /> 4.1 Site Geology 22 <br /> 4.2 Vadose Zone 23 <br /> 4.2.1 Permeability 23 <br /> 4.2.2 Pore-Fluid Chemistry 24 - <br /> 4.3 Leachate 25 <br /> 4.3.1 Analytical Results 25 <br /> 4.4 Ground Water 26 <br /> FOOTHILL ui <br />