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City of Chino Hills Hazard Mitigation Plan Update

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City of Chino Hills Hazard Mitigation Plan Update 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
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