City of Cloverdale General Plan Background Report Chapter 10: Public Health and Safety May 2021 Public Review Draft Chapter 10: Public Health and Safety TABLE OF CONTENTS Chapter 10. Public Health and Safety ..............................................................................................1 10.1 Overview ............................................................................................................................1 10.1.1 Legal Basis and Requirements .............................................................................................. 1 10.1.2 Methodology and Sources .................................................................................................... 1 10.1.3 Hazard Profiles ...................................................................................................................... 1 10.2 Emergency Management Framework ...................................................................................2 10.3 Critical Facilities ..................................................................................................................3 10.3.1 Critical Infrastructure ............................................................................................................ 3 10.3.2 City Utilities ........................................................................................................................... 6 10.3.3 Housing for Vulnerable Residents ......................................................................................... 6 10.4 Climate Change and Its Effects on Public Health and Safety ..................................................8 10.4.1 What is Climate Change? ...................................................................................................... 8 10.4.2 Potential Impacts of Climate Change on Hazards ................................................................. 8 10.4.3 Climate Vulnerability in Sonoma County .............................................................................. 9 10.5 Drought ............................................................................................................................ 10 10.5.1 Plans, Policies, and Regulatory Environment ...................................................................... 11 10.5.2 Past Events .......................................................................................................................... 12 10.5.3 Location ............................................................................................................................... 14 10.5.4 Frequency/Probability of Future Occurrences.................................................................... 14 10.5.5 Severity and Extent ............................................................................................................. 15 10.5.6 Warning Time ...................................................................................................................... 15 10.5.7 Secondary Hazards .............................................................................................................. 16 10.5.8 Vulnerability Assessment .................................................................................................... 16 10.6 Earthquake ....................................................................................................................... 17 10.6.1 Plans, Policies, and Regulatory Environment ...................................................................... 20 10.6.2 Past Events .......................................................................................................................... 22 10.6.3 Location ............................................................................................................................... 24 10.6.4 Frequency / Probability of Future Events ........................................................................... 24 10.6.5 Severity and Extent ............................................................................................................. 26 10.6.6 Warning Time ...................................................................................................................... 29 10.6.7 Secondary Hazards .............................................................................................................. 29 10.6.8 Vulnerability Assessment .................................................................................................... 29 10.7 Flooding ............................................................................................................................ 42 10.7.1 Floodplains .......................................................................................................................... 42 10.7.2 Plans, Policies, and Regulatory Environment ...................................................................... 44 10.7.3 Past Events .......................................................................................................................... 44 10.7.4 Location ............................................................................................................................... 47 10.7.5 Frequency/Probability of Future Events ............................................................................. 48 10.7.6 Severity and Extent ............................................................................................................. 48 10.7.7 Warning Time ...................................................................................................................... 51 10.7.8 Secondary Hazards .............................................................................................................. 51 10.7.9 Vulnerability Assessment .................................................................................................... 51 City of Cloverdale i Background Report (Public Review Draft) General Plan May 2021 Chapter 10: Public Health and Safety 10.8 Geological Hazards ............................................................................................................ 58 10.8.1 Landslide ............................................................................................................................. 58 10.8.2 Plans, Policies, and Regulatory Environment ...................................................................... 59 10.8.3 Past Events .......................................................................................................................... 59 10.8.4 Location ............................................................................................................................... 59 10.8.5 Frequency/Probability of Future Occurrences.................................................................... 62 10.8.6 Severity and Extent ............................................................................................................. 62 10.8.7 Warning Time ...................................................................................................................... 62 10.8.8 Secondary Hazards .............................................................................................................. 63 10.8.9 Vulnerability Assessment .................................................................................................... 63 10.9 Epidemic/Pandemic/Vector-Borne Disease ........................................................................ 65 10.9.1 Infectious Disease ............................................................................................................... 65 10.9.2 Vector-Borne Diseases ........................................................................................................ 65 10.9.3 Plans, Policies, and Regulations .......................................................................................... 66 10.9.4 Past Events .......................................................................................................................... 67 10.9.5 Location ............................................................................................................................... 69 10.9.6 Frequency/Probability ........................................................................................................ 69 10.9.7 Severity / Extent .................................................................................................................. 69 10.9.8 Warning Time ...................................................................................................................... 70 10.9.9 Secondary Hazards .............................................................................................................. 70 10.9.10 Vulnerability Assessment ................................................................................................ 70 10.10 Wildfire............................................................................................................................. 71 10.10.1 Plans, Policies, and Regulatory Environment .................................................................. 71 10.10.2 Past Events ...................................................................................................................... 72 10.10.3 Location ........................................................................................................................... 74 10.10.4 Frequency / Probability of Future Occurrences .............................................................. 74 10.10.5