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Tri-Valley Local Hazard Mitigation Plan;Volume 1—Planning-Area-Wide Elements <br /> 8.5.2 Property 8-21 <br /> 8.5.3 Critical Facilities and Infrastructure 8-23 <br /> 8.5.4 Environment 8-23 <br /> 8.6 Future Trends in Development 8-26 <br /> 8.7 Scenario 8-26 <br /> 8.8 Issues 8-27 <br /> 9. Flood 9-1 <br /> 9.1 General Background 9-1 <br /> 9.1.1 Measuring Floods and Floodplains 9-1 <br /> 9.1.2 Floodplain Ecosystems and the Effects of Human Activities 9-2 <br /> 9.1.3 Federal Flood Programs 9-2 <br /> 9.2 Hazard Profile 9-6 <br /> 9.2.1 Types of Flooding Affecting the Planning Area 9-6 <br /> 9.2.2 Past Events 9-7 <br /> 9.2.3 Location 9-9 <br /> 9.2.4 Frequency 9-9 <br /> 9.2.5 Severity 9-11 <br /> 9.2.6 Warning Time 9-11 <br /> 9.3 Secondary Hazards 9-13 <br /> 9.4 Exposure 9-13 <br /> 9.4.1 Population 9-13 <br /> 9.4.2 Property 9-13 <br /> 9.4.3 Critical Facilities and Infrastructure 9-15 <br /> 9.4.4 Environment 9-17 <br /> 9.5 Vulnerability 9-17 <br /> 9.5.1 Population 9-17 <br /> 9.5.2 Property 9-19 <br /> 9.5.3 Critical Facilities and Infrastructure 9-21 <br /> 9.5.4 Environment 9-22 <br /> 9.6 Future Trends in Development 9-23 <br /> 9.7 Scenario 9-23 <br /> 9.8 Issues 9-23 <br /> 10. Landslide 10-1 <br /> 10.1 General Background 10-1 <br /> 10.1.1 Landslide Types 10-1 <br /> 10.1.2 Landslide Modeling 10-3 <br /> 10.1.3 Landslide Causes 10-4 <br /> 10.1.4 Landslide Management 10-4 <br /> 10.2 Hazard Profile 10-5 <br /> 10.2.1 Past Events 10-5 <br /> 10.2.2 Location 10-6 <br /> 10.2.3 Frequency 10-7 <br /> 10.2.4 Severity 10-7 <br /> 10.2.5 Warning Time 10-7 <br /> 10.3 Secondary Hazards 10-9 <br /> 10.4 Exposure 10-9 <br /> 10.4.1 Population 10-9 <br /> 10.4.2 Property 10-9 <br /> viii TETRA TECH <br />