City of Chino Hills Hazard Mitigation Plan Update March 2011 Primary Point of Contact Jonathan Marshall Community Services Director Table of Contents Section 1 - Introduction ......................................................................................... p. 7 1.1 Purpose of the Plan ...................................................................................... p. 7 1.2 Authority ....................................................................................................... p. 7 1.3 Community Profile ........................................................................................ p. 7 1.3.1 Physical Setting ...................................................................................... p. 7 1.3.2 History .................................................................................................... p. 8 1.3.3 Demographics ........................................................................................ p. 9 1.3.4 Existing Land Use ................................................................................... p. 10 1.3.5 Development Trends .............................................................................. p. 11 Section 2 - Plan Adoption ...................................................................................... p. 12 2.1 Adoption by Local Governing Body ............................................................... p. 12 2.2 Promulgation Authority ................................................................................ p. 12 2.3 Primary Point of Contact .............................................................................. p. 12 Section 3 - Planning Process ............................................................................... p. 13 3.1 Preparing for the Plan ................................................................................... p. 13 3.1.1 Planning Team ....................................................................................... p. 13 3.2 Coordination with Other Jurisdictions, Agencies, and Organizations ............ p. 15 3.3 Public Involvement/Outreach ........................................................................ p. 17 3.3.1 Public Meetings ...................................................................................... p. 17 3.4 Assess the Hazard ....................................................................................... p. 19 3.5 Set Goals ..................................................................................................... p. 19 3.6 Review and Propose Mitigation Measures .................................................... p. 20 3.7 Draft the Hazard Mitigation Plan ................................................................... p. 22 3.8 Adopt the Plan .............................................................................................. p. 22 Section 4 - Risk Assessment ................................................................................ p. 23 4.1 Hazard Identification ..................................................................................... p. 23 4.1.1 Hazard Screening Criteria ....................................................................... p. 23 4.1.2 Hazard Assessment Matrix ..................................................................... p. 24 4.1.3 Hazard Prioritization ............................................................................... p. 26 4.2 Hazard Profile ............................................................................................... p. 27 4.2.1 Wildfire ................................................................................................... p. 27 4.2.1.1 Hazard Definition for Wildfire ............................................................. p. 27 4.2.1.2 Fire Hazard Severity .......................................................................... p. 28 4.2.1.3 Historical Profile ................................................................................. p. 29 4.2.1.4 Hazard Summary for Wildfire ............................................................. p. 29 4.2.2 Earthquakes ........................................................................................... p. 31 4.2.2.1 Hazard Definition for Earthquake ....................................................... p. 31 4.2.2.2 Geologic Setting ................................................................................ p. 32 4.2.2.3 Earthquake Related Hazards ............................................................. p. 33 4.2.2.4 Historical Profile ................................................................................. p. 34 4.2.2.5 Hazard Summary for Earthquake....................................................... p. 35 4.2.3 Flooding/Winter Storms .......................................................................... p. 37 4.2.3.1 Hazard Definition for Flooding ........................................................... p. 37 4.2.3.2 Identification of Flood-prone Areas .................................................... p. 40 4.2.3.3 National Flood Insurance Program (NFIP) ......................................... p. 42 4.2.3.4 Historical Profile ................................................................................. p. 42 4.3 Inventory Assets ........................................................................................... p. 44 City of Chino Hills Hazard Mitigation Plan (2011 Update) 3 4.3.1 Population .............................................................................................. p. 44 4.3.2 Buildings ................................................................................................. p. 44 4.3.3 Critical Facility List .................................................................................. p. 45 4.4 Vulnerability Assessment.............................................................................. p. 49 4.4.1 Methodology ........................................................................................... p. 50 4.4.2 Results for Wildfire .................................................................................. p. 50 4.4.3 Results for Earthquake ........................................................................... p. 54 4.4.4 Results for Flood .................................................................................... p. 63 Section 5 - Community Capability Assessment… ............................................... p. 64 5.1 Agencies and People .................................................................................... p. 64 5.2 Existing Plans ............................................................................................... p. 67 5.3 Regulations, Codes, Policies, and Ordinances ............................................. p. 68 5.4 Mitigation Programs .......................................................................................p. 69 5.5 Fiscal Resources ...........................................................................................p. 70 Section 6 - Mitigation Strategies ............................................................................p. 73 6.1 Overview .......................................................................................................p. 73 6.2 Mitigation 5-Year Progress Report .................................................................p. 73 6.3 Mitigation Goals, Objectives, and Projects .....................................................p. 74 6.3.1 Emergency Preparedness Goals. ............................................................p. 74 6.3.2. Wildfire ....................................................................................................p. 76 6.3.2 Earthquake ..............................................................................................p. 77 6.3.3 Flood .......................................................................................................p. 77 6.4 Mitigation Priorities ........................................................................................p. 78 6.5 Implementation Strategy ................................................................................p. 78 Section 7 - Plan Maintenance .................................................................................p. 80 7.1 Monitoring, Evaluating and Updating the Plan ...............................................p. 80 7.2 Implementation through Existing Programs ...................................................p. 80 7.3 Continued Public Involvement .......................................................................p. 80 Appendix A……. ......................................................................................................p. 81 A.1. List of San Bernardino County Stakeholders Planning Group ........................p. 82 A.2. Public Outreach Efforts for Hazard Mitigation Planning .................................p. 83 List of Figures Figure 1 – Regional Setting……. ...............................................................................p. 8 Figure 2 – Land Use Map ..........................................................................................p. 11 Figure 3 – Earthquake Fault Zones ...........................................................................p. 25 Figure 4 – CalFire Fire Hazard Severity Map ............................................................p. 30 Figure 5 – City of Chino Hills – Very High Hazard Severity Zones.............................p. 31 Figure 6 – Major California Faultsp. 33 Figure 7 – UCERF