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<br />Comprehensive Sanitary Sewer Plan <br />City of Arden Hills, MN <br />WSB Project No. 3455-20 Table of Contents <br />TABLE OF CONTENTS <br /> <br />INTRODUCTION ........................................................................................ 1 <br />BACKGROUND ......................................................................................... 2 <br />EXISTING SANITARY SEWER SYSTEM .................................................. 2 <br />Service Districts ...................................................................................................................... 2 <br />Gravity Sewer ......................................................................................................................... 2 <br />Lift Stations ............................................................................................................................ 3 <br />Community Treatment Systems .............................................................................................. 3 <br />Intercommunity Flows ............................................................................................................. 3 <br />Individual Sewage Treatment Systems ................................................................................... 6 <br />FORECASTS ............................................................................................. 8 <br />Population .............................................................................................................................. 8 <br />Wastewater Flows .................................................................................................................. 9 <br />SANITARY SEWER DESIGN CRITERIA ................................................. 10 <br />Land Use ...............................................................................................................................10 <br />Estimated Average Flows – Existing ......................................................................................10 <br />Estimated Average Flows – 2040 Build Out ...........................................................................10 <br />Peak Flow Factors .................................................................................................................11 <br />SANITARY SEWER TRUNK RECOMMENDATIONS .............................. 12 <br />Lift Station Analysis ...............................................................................................................12 <br />Trunk Sewer Analysis ............................................................................................................13 <br />MCES Interceptor Facility Forecasts .....................................................................................14 <br />Individual Sewage Treatment Systems ..................................................................................14 <br />INFLOW AND INFILTRATION ................................................................. 16 <br />General .................................................................................................................................16 <br />I/I Analysis .............................................................................................................................17 <br />I/I Reduction ..........................................................................................................................18 <br />COST ESTIMATES AND FINANCING ..................................................... 20 <br />SUMMARY AND OUTCOMES ................................................................. 20 <br /> <br />FIGURES <br />Figure 1 Existing Sanitary Sewer System <br />Figure 2 Sanitary Sewer Districts <br />Figure 3 Individual Sewage Treatment Systems <br />Figure 4 MCES Peak Factors <br />Figure 5 2040 Sanitary Sewer System <br /> <br />APPENDIX <br /> <br />Appendix A I/I Study