Township of North Huron Water and Wastewater Master Plan Wingham and Blyth 2020

TOWNSHIP OF NORTH HURON WATER AND WASTEWATER MASTER PLAN WINGHAM AND BLYTH 2020 TOWNSHIP OF NORTH HURON WATER AND WASTEWATER MASTER PLAN WINGHAM AND BLYTH 2020 April 16, 2020 B. M. ROSS AND ASSOCIATES LIMITED Engineers and Planners 62 North Street Goderich, ON N7A 2T4 Phone: 519-524-2641 Fax: 519-524-4403 www.bmross.net File No. 17181 Z:\17181-North_Huron-Water_Wastewater_Master_Plan\WP\Master Plan\17181-20Apr16 MP Report.docx TABLE OF CONTENTS EXECUTIVE SUMMARY ............................................................................. ES-1 1.0 INTRODUCTION ................................................................................................ 1 1.1 Purpose of the Master Plan ............................................................................. 1 1.2 General Description of Master Plans .............................................................. 1 1.3 Integration with the Class EA Process ........................................................... 2 1.3.1 Class EA Phases ..................................................................................... 2 1.3.2 Classification of Project Schedules ......................................................... 2 1.4 Master Plan Framework ................................................................................... 3 1.4.1 Alternative Approaches ........................................................................... 3 1.4.2 Applied Framework .................................................................................. 5 1.4.3 Approval Requirements ........................................................................... 5 1.4.4 Past Studies and Investigations .............................................................. 6 2.0 THE STUDY AREA AND EXISTING CONDITIONS .......................................... 7 2.1 Study Area ........................................................................................................ 7 2.2 General Description of Water and Wastewater Facilities ........................... 11 2.3 Environmental Setting ................................................................................... 11 2.3.1 General Physiography ........................................................................... 12 2.3.2 Significant Natural Heritage Features .................................................... 12 2.3.3 Species at Risk ...................................................................................... 15 2.3.4 Cultural Heritage and Archaeological Resources .................................. 17 2.3.5 Climate Change ..................................................................................... 17 2.4 Planning Policies ........................................................................................... 18 2.4.1 Provincial Planning Policies ................................................................... 18 2.4.2 Local Planning Policies .......................................................................... 19 2.4.3 Source Water Protection ....................................................................... 19 3.0 POPULATION GROWTH AND FUTURE DEVELOPMENT ............................ 24 3.1 Sources of Information for Population Growth ........................................... 24 3.2 North Huron Population and Dwellings ........................................................ 24 3.3 Wingham Population and Dwellings............................................................. 25 3.4 Blyth Population and Dwellings .................................................................... 25 3.5 Wingham and Blyth Building Permits .......................................................... 26 3.6 Residential Growth Forecasting ................................................................... 27 3.6.1 Methodology .......................................................................................... 27 3.6.2 Wingham Growth Forecast .................................................................... 27 3.6.3 Blyth Growth Forecast ........................................................................... 29 3.7 Development Commitments .......................................................................... 30 3.7.1 Commitments for Wingham ................................................................... 30 3.7.2 Commitments for Blyth .......................................................................... 30 3.8 Comparison of Commitments to Growth ..................................................... 34 Table of Contents Cont’d 4.0 WINGHAM DRINKING WATER SYSTEM ....................................................... 35 4.1 Description ..................................................................................................... 35 4.1.1 Supply and Storage Facilities ................................................................ 35 4.1.2 Water Distribution System ..................................................................... 37 4.2 Existing and Design Water Demands ........................................................... 38 4.2.1 Existing Average and Maximum Day Flows .......................................... 38 4.2.2 Unit Water Flows ................................................................................... 38 4.3 Reserve Capacity of Supply .......................................................................... 39 4.3.1 General .................................................................................................. 39 4.3.2 Commitments ........................................................................................ 39 4.3.3 Reserve Based on Maximum Day ......................................................... 39 4.3.4 Reserve Based on Peak Flows ............................................................. 40 4.3.5 Summary for Reserve Capacity ............................................................. 41 4.4 Reserve Capacity of Storage ......................................................................... 41 4.4.1 Existing Facilities ................................................................................... 41 4.4.2 Required Volumes ................................................................................. 42 4.5 Future Supply and Storage Requirements ................................................... 43 4.5.1 General .................................................................................................. 43 4.5.2 Supply Requirements ............................................................................ 43 4.5.2 Storage Requirements ........................................................................... 43 4.6 Water Distribution Analysis .......................................................................... 44 4.6.1 Background ........................................................................................... 44 4.6.2 Model Details ......................................................................................... 44 4.6.3 Analyses Run ........................................................................................ 45 4.6.4 Qualifications on Results ....................................................................... 45 4.6.5 Results of Analysis ................................................................................ 45 4.6.6 Findings for the Existing Distribution System ........................................ 49 4.6.7 Extension to Hutton Heights .................................................................. 51 4.7 Climate Change Considerations ................................................................... 51 4.8 Physical Condition Assessment ................................................................... 51 4.8.1 General .................................................................................................. 51 4.8.2 Watermains ........................................................................................... 51 4.8.3 Electrical – HVAC – Standby Power ...................................................... 52 4.9 Summary of Findings for Wingham Water ................................................... 52 4.10 Levels of Service ............................................................................................ 53 4.10.1 General .................................................................................................. 53 4.10.2 2019 LOS Summary .............................................................................. 54 5.0 WINGHAM WASTEWATER SYSTEM............................................................. 55 5.1 Description ..................................................................................................... 55 5.1.1 Pumping and Treatment ........................................................................ 55 5.1.2 Sewer Collection System ....................................................................... 57 5.2 Existing and Design Wastewater Flows ....................................................... 58 5.2.1 Average and Maximum Day Flows ........................................................ 58 5.2.2 Peak Sewage Flows .............................................................................. 58 5.2.3 Unit Sewage Flows ................................................................................ 58 5.3 Reserve Capacity ........................................................................................... 59 5.3.1 General .................................................................................................. 59 5.3.2 Commitments .......................................................................................

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