i i Table of Contents Section 1: Introduction ................................................................................................................................ 1 1.1 Plan Goals and Authority................................................................................................................... 2 1.2 Hazard Mitigation Grant Program (HMGP) ........................................................................................ 2 1.3 Pre-Disaster Mitigation (PDM) ........................................................................................................... 3 1.4 Flood Mitigation Assistance (FMA) .................................................................................................... 3 1.5 Participation ...................................................................................................................................... 3 Section 2: Mitigation Plan Update .............................................................................................................. 4 2.1 Planning Process .............................................................................................................................. 4 2.1.1 Plan Administrators ..................................................................................................................... 6 2.1.2 Emergency Manager Role and Responsibilities .......................................................................... 6 2.1.3 The Mitigation Steering Committee ............................................................................................. 6 2.1.4 Hazard Mitigation Planning Team ............................................................................................... 7 2.1.5 Participating Jurisdictions............................................................................................................ 8 2.1.6 Meetings and Participation .......................................................................................................... 9 2.1.7 Additional Meetings and Participation ....................................................................................... 12 2.1.8 Partners and Stakeholders ....................................................................................................... 13 2.1.9 Review and Incorporation of Existing Plans and Studies .......................................................... 14 2.1.10 Participation and Data Request .............................................................................................. 16 2.1.11 Summary of the Planning Process & Significant Plan Updates ............................................... 17 2.2 Changes Made During this Plan Update ......................................................................................... 17 Section 3: Community Profile ................................................................................................................... 19 3.1 General Overview ........................................................................................................................... 20 3.1.1 Historical Setting ....................................................................................................................... 21 3.1.2 City & Township Government ................................................................................................... 22 3.1.3 Incorporated Municipalities of Chisago County ......................................................................... 22 3.1.4 Townships of Chisago County .................................................................................................. 25 3.2 Physical Characteristics .................................................................................................................. 27 3.2.1 Climate and Precipitation .......................................................................................................... 27 3.2.2 Geology .................................................................................................................................... 30 3.2.3 Hydrology .................................................................................................................................. 32 3.2.4 Chisago County Hydrology ....................................................................................................... 33 3.2.5 Rivers, Lakes, Wetlands ........................................................................................................... 33 3.2.6 Groundwater ............................................................................................................................. 35 3.2.7 Watersheds ............................................................................................................................... 36 3.2.8 Land Cover ............................................................................................................................... 38 3.2.9 Ecology ..................................................................................................................................... 38 3.2.10 Soil .......................................................................................................................................... 39 3.2.11 Topography ............................................................................................................................. 41 3.2.12 Land Use ................................................................................................................................ 41 3.3 Population and Demographics ........................................................................................................ 46 3.3.1 Projected Population ................................................................................................................. 46 3.3.2 Comparable Growth .................................................................................................................. 46 ii 3.3.3 Population by Age Groups ........................................................................................................ 47 3.3.4 Households ............................................................................................................................... 47 3.3.5 Special Populations .................................................................................................................. 48 3.4 Cultural Conditions .......................................................................................................................... 50 3.4.1 Race and Ethnicity .................................................................................................................... 50 3.4.2 Level of Education .................................................................................................................... 51 3.4.3 Socioeconomic Conditions: Income .......................................................................................... 51 3.4.4 Employment .............................................................................................................................. 52 3.4.5 Occupation ................................................................................................................................ 52 3.4.6 Commercial Trends ................................................................................................................... 52 3.4.7 Faith Based Community ............................................................................................................ 53 3.4.8 Economic Conditions ................................................................................................................ 54 3.4.9 Superfund ................................................................................................................................. 54 3.4.10 Future Development ............................................................................................................... 55 3.4.11 Crime ...................................................................................................................................... 55 3.5 Critical Infrastructure ....................................................................................................................... 56 3.5.1 Roads ....................................................................................................................................... 56 3.5.2 Railroads ................................................................................................................................... 57 3.5.3 Air Transportation ..................................................................................................................... 58 3.5.4 Transit ....................................................................................................................................... 58 3.5.5 Trails ......................................................................................................................................... 58 3.5.6 Pipelines ................................................................................................................................... 59 3.5.7 Sewer and Water Systems........................................................................................................ 61 3.5.8 Public Wastewater Treatment Facilities .................................................................................... 61 3.5.9 Water Control Structures .........................................................................................................