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1100318 R0T0 0811 JRW1 ii <br />Contents <br /> <br />Page <br /> <br />List of Photographs iv <br />List of Figures v <br />1 Introduction 1 <br />2 Investigation Scope & Site Description 4 <br />2.1 Investigation Scope 4 <br />2.2 Site Description and Background 5 <br />2.3 Limitations 5 <br />3 Pikeview Quarry – Engineered Improvement to Land 7 <br />3.1 Permit Application and Approval 8 <br />3.2 1994 Amendment 9 <br />3.3 2000 Amendment 12 <br />3.4 Technical Revision 11 (TR-11) 15 <br />4 Landslide Damage to Engineered Improvements 16 <br />5 Investigation of Landslide Cause 19 <br />5.1 Geologic Setting 19 <br />5.2 Investigation 20 <br />5.2.1 Geologic Conditions 20 <br />5.2.1.1 Surface Mapping 20 <br />5.2.1.2 Bedrock and Surficial Materials 20 <br />5.2.1.3 Bedrock Structure and Discontinuities 24 <br />5.2.2 Subsurface Investigation 25 <br />5.2.2.1 Overview of Investigations Performed 25 <br />5.2.2.2 Key Field Investigation Observations 27 <br />5.2.3 Geologic Characterization 29 <br />5.2.4 Laboratory Testing 32 <br />5.2.5 Groundwater Conditions and Monitoring 33 <br />5.2.6 Rain Data 34