August 21, 2013 ALTERNATIVE URBAN AREAWIDE City of Rosemount Review 2875 145th Street West • Rosemount, MN 55068-4997 (651) 423-4411 Umore Study Area Rosemount, Minnesota Final AUAR WSB Project No. 1829-06 FINAL ALTERNATIVE URBAN AREAWIDE REVIEW UMORE STUDY AREA Prepared For: City of Rosemount August 21, 2013 TABLE OF CONTENTS TITLE PAGE I. EXECUTIVE SUMMARY .......................................................................................................................... 1 I.i. INTRODUCTION/BACKGROUND ........................................................................................................ 1 I.ii. INFRASTRUCTURE PLANNED TO SERVE THE DEVELOPMENT ....................................................... 2 I.iii. ANTICIPATED DEVELOPMENT STAGING ....................................................................................... 3 II. SUMMARY OF MITIGATION MEASURES ............................................................................................... 4 II.i. Fish, Wildlife, and Ecologically Sensitive Resources ..................................................................... 4 II.ii. Water Use Mitigation Plan ............................................................................................................ 4 II.iii. Erosion and Sedimentation Mitigation Plan ................................................................................. 5 II.iv. Water Quantity and Quality Mitigation Plan ................................................................................ 5 II.v. Wastewater Mitigation Plan ......................................................................................................... 7 II.vi. Geologic Hazards and Soil Conditions Mitigation Plan ................................................................. 7 II.vii. Transportation Mitigation Plan ..................................................................................................... 8 II.viii. Noise Mitigation Plan ................................................................................................................ 9 II.ix. Nearby Resources Mitigation Plan ................................................................................................ 9 II.x. Visual Impact Mitigation Plan ....................................................................................................... 9 II.xi. Compatibility with Land Use Regulations Mitigation Plan ............................................................ 9 III. UMORE STUDY AREA AUAR ............................................................................................................ 11 1) PROJECT TITLE ......................................................................................................................... 11 2) PROPOSER ............................................................................................................................... 11 3) RGU ......................................................................................................................................... 11 4) REASON FOR EAW PREPARATION ........................................................................................... 11 5) PROJECT LOCATION ................................................................................................................. 11 6) DESCRIPTION ........................................................................................................................... 11 7) PROJECT MAGNITUDE ............................................................................................................. 16 8) PERMITS AND APPROVALS ...................................................................................................... 17 9) LAND USE ................................................................................................................................ 19 10) COVER TYPES ....................................................................................................................... 32 11) FISH, WILDLIFE, AND ECOLOGICALLY SENSITIVE RESOURCES ............................................. 33 12) PHYSICAL IMPACTS ON WATER RESOURCES. ..................................................................... 39 13) WATER USE. ........................................................................................................................ 40 14) WATER-RELATED LAND USE MANAGEMENT DISTRICTS ..................................................... 53 15) WATER SURFACE USE .......................................................................................................... 54 16) EROSION AND SEDIMENTATION ......................................................................................... 54 17) WATER QUALITY – SURFACE WATER RUNOFF .................................................................... 55 18) WATER QUALITY – WASTEWATER ...................................................................................... 61 19) GEOLOGIC HAZARDS AND SOIL CONDITIONS ..................................................................... 72 20) SOLID WASTES, HAZARDOUS WASTES, STORAGE TANKS ................................................... 77 21) TRAFFIC ............................................................................................................................... 80 22) VEHICLE-RELATED AIR EMISSIONS ...................................................................................... 94 City of Rosemount Table of Contents Final Alternative Urban Areawide Review August 21, 2013 TABLE OF CONTENTS 23) STATIONARY SOURCE AIR EMISSIONS ................................................................................ 99 24) ODORS, NOISE, AND DUST. ................................................................................................. 99 25) NEARBY RESOURCES ......................................................................................................... 104 26) VISUAL IMPACTS ............................................................................................................... 109 27) COMPATIBILITY WITH PLANS AND LAND USE REGULATIONS ........................................... 110 28) IMPACT ON INFRASTRUCTURE AND PUBLIC SERVICES ..................................................... 113 29) CUMULATIVE IMPACTS ..................................................................................................... 115 30) OTHER POTENTIAL ENVIRONMENTAL IMPACTS ............................................................... 116 LIST OF FIGURES Figure 5-1: General Location Map Figure 5-2: USGS Map Figure 5-3: Aerial Photo Figure 6-1: Scenario 1 Figure 6-2: Scenario 2 Figure 6-3: Scenario 3 Figure 6-4: Scenario 4 Figure 9-1: Existing Land Use Figure 10-1: Land Cover Figure 10-2: Land Cover over Scenario 1 Figure 10-3: Land Cover over Scenario 2 Figure 10-4: Land Cover over Scenario 3 Figure 11-1: Ecological Resources Figure 11-2: Rosemount Natural Area Identification Map Figure 13-1: County Well Index Figure 13-2: Municipal Wells and Drinking Water Supply Management Area Figure 13-3 Scenario 1 Water Analysis Figure 13-4: Scenario 2 Water Analysis Figure 13-5: Scenario 3 Water Analysis Figure 14-1: FEMA Floodplain Figure 16-1: Highly Erodible Land Figure 17-1: Subwatershed Map Figure 18-1: MCES Interceptor Location Figure 18-2: Sewer District and MCES Connections Figure 18-3: Scenario 1 Wastewater Analysis Figure 18-4: Scenario 2 Wastewater Analysis Figure 18-5: Scenario 3 Wastewater Analysis Figure 19-1: Soil Types Figure 19-2: Hydric Soils Figure 19-3: Suitability for Dwellings with Basements Figure 19-4: Depth to Bedrock Figure 19-5 Groundwater Sensitivity Figure 19-6: Karst Features Figure 21-1A: Existing Traffic Volumes and Lane Geometry Figure 21-1B: Existing Traffic Volumes and Lane Geometry City of Rosemount Table of Contents Final Alternative Urban Areawide Review August 21, 2013 TABLE OF CONTENTS Figure 21-2: Future Roadway Functional Class Figure 21-3: Traffic Analysis Zones/Major Roadway Network Figure 21-4: Development Traffic Distribution Figure 21-5A: 2030 No Build Traffic Volumes Figure 21-5B: 2030 No Build Traffic Volumes Figure 21-6A: Scenario 1 Full Development Turning Movements Figure 21-6B: Scenario 1 Full Development Turning Movements Figure 21-7A: Scenario 2 Full Development Turning Movements Figure 21-7B: Scenario 2 Full Development Turning Movements Figure 21-8A: Scenario 3 Full Development Turning Movements Figure 21-8B: Scenario 3 Full Development Turning Movements Figure 21-9: Future Projected Daily Traffic Volumes Figure 21-10A: No Build Lane and Traffic Control Needs Figure 21-10B: Build Lane and Traffic Control Needs Figure 24-1: Noise Model Receptors Figure 25-1: Sensitive Resources Figure 25-2: UMore Park Soils Figure 25-3: Parks, Recreation Areas and Trails LIST OF TABLES Table 6-1 Scenario 1 Table 6-2 Scenario 2 Table 6-3 Scenario 3 Table 7-1 Composite Scenarios Table Table 8-1 List of Permits and Approvals Table 10-1 Land Cover Table 13-1 Existing Average Day Water Usage and Maximum Day Water Usage for Rosemount’s Water System Table 13-2 Future water demand for Scenario 1 Table 13-3 Comparison of supply and storage included in CWP and Scenario 1. Table 13-4 Future water demands for Scenario 2 Table 13-5 Comparison of supply and storage included in CWP and Scenario 2. Table 13-6 Future water demands for Scenario 3 Table 13-7 Comparison of supply and storage included in CWP and Scenario 3. Table 17-1 Existing and Proposed Runoff Volumes Table 17-2 Total Suspended Solids and Total Phosphorus Loads Table