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Grand River Water Management Study. 1982

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Grand River Water Management Study. 1982 GRAND RIVER BASIN WATER MANAGEMENT STUDY GRAND RIVER IMPLEMENTATION COMMITTEE 1982 Grand River Basin Water Management Study GRAND RIVER IMPLEMENTATION COMMITTEE 1982 Archivist Note: Source photos in this report were of poor quality. TABLE OF CONTENTS Page CHAPTER 1. SUMMARY AND RECOMMENDATIONS. 1.1 CHAPTER 2. INTRODUCTION 2.1 2.1 Background 2.1 2.2 The Problems 2.1 2.3 The Issues 2.1 2.4 The Basin Study 2.3 2.5 Acknowledgements 2.3 CHAPTER 3. THE GRAND RIVER BASIN 3.1 3.1 Past and Present 3.1 3.2 Future Trends 3.7 3.2.1 Urban 3.7 3.2.2 Rural 3.7 CHAPTER 4. WATER RESOURCES 4.1 4.1 Surface Water Quantity 4.1 4.2 Surface Water Quality 4.3 4.3 Ground Water Quantity 4.5 4.4 Ground Water Quality 4.8 CHAPTER 5. WATER USES? 5.2 5.1 Water Supply 5.2 5.1.1 Municipal 5.2 5.1.2 Industrial 5.2 5.1.3 Agricultural 5.5 5.1.4 Summary of Water Supply Uses 5.5 5.2 Waste Assimilation 5.5 5.2.1 Municipal Wastes 5.5 5.2.2 Industrial Wastes 5.5 5.2.3 Agricultural Wastes 5.7 5.3 Water-Based Recreation 5.8 5.4 Fish and Wildlife 5.10 CHAPTER 6. WATER RESOURCE PROBLEMS 6.1 6.1 Water Supply 6.1 6.1.1 Objective 6.1 6.1.2 Problems 6.1 6.1.3 Municipal Water Requirements 6.1 6.1.4 Industrial Water Requirements 6.4 6.1.5 Agricultural Water Requirements 6.4 6.2 Flood Damages 6.8 6.2.1 Objective 6.8 6.2.2 Problems 6.8 -i- 6.3 Water Quality. 6.15 6.3.1 Objective for Surface Water Quality 6.15 6.3.2 Problems with Surface Water Quality 6.15 6.3.3 Objectives for Ground Water Quality 6.25 6.3.4 Problems with Ground Water Quality 6.25 6.4 Public Perceptions of Water Management 6.25 CHAPTER 7. WATER MANAGEMENT MEASURES FOR LOCAL AREAS 7.1 7.1 Upper Grand River System 7.1 7.2 Middle Grand River System 7.2 7.3 Conestogo River System 7.2 7.4 Canagagigue Creek System 7.3 7.5 Nith River System 7.4 7.6 Lower Grand River System 7.6 7.7 Speed and Eramosa Rivers System 7.6 7.8 Municipal Sewage Treatment Costs for Local Areas 7.6 CHAPTER 8. FORMATION AND SCREENING OF WATER MANAGEMENT ALTERNATIVES 8.1 8.1 Water Management Plans 8.1 8.2 Screening of Water Management Plans 8.1 8.3 Plan Selection 8.1 CHAPTER 9. DESCRIPTION OF MAIN PLANS 9.1 9.1 Plan A - Dykes and Channelization, 9.1 Advanced Sewage Treatment, Local Sources of Water Supply 9.2 Plan B - Montrose Reservoir, Advanced 9.12 Sewage Treatment, Local Sources of Water Supply 9.3 Plan C - Single-Purpose Reservoir for Flood Control, 9.17 Advanced Sewage Treatment, Local Sources of Water Supply 9.4 Plan D - Lake Erie Water Supply Pipeline, Advanced 9.21 Sewage Treatment, Dykes and Channelization 9.5 Reservoir Low Flow Operation 9.24 9.6 General Water Management Practices 9.27 Supporting the Main Plans 9.6.1 Practices to Reduce Flood Damage 9.27 9.6.2 Practices to Improve Water Quality 9.28 9.6.3 Practices to Reduce Water Demand 9.34 9.6.4 General Water Management Practices 9.34 -ii- CHAPTER 10. EFFECTIVENESS OF MAIN PLANS 10.1 10.1 Flood Damage Reduction 10.1 10.2 Maintain Adequate Water Quality 10.3 10.3 Provide Adequate Water Supplies 10.17 10.4 Summary of Plan Costs and Benefits 10.17 10.5 Uncertainty 10.22 10.5.1 Uncertainty in Reducing Flood Damages 10.22 10.5.2 Uncertainty in Maintaining Adequate Water Supply 10.23 10.5.3 Uncertainty in Maintaining Adequate Water Quality 10.25 10.5.4 Summary 10.25 CHAPTER 11. COMPARISON AND EVALUATION OF MAIN PLANS 11.1 11.1 Comparison of Plans 11.1 11.2 Evaluation of Plans by Technical Groups 11.1 11.3 Evaluation of Plans by Public Groups 11.1 11.4 Selection of Preferred Plan 11.4 CHAPTER 12. THE PREFERRED PLAN 12.1 12.1 What the Plan Does 12.1 12.1.1 Reduce Flood Damages 12.1 12.1.2 Provide Adequate Water Supply 12.1 12.1.3 Provide Adequate Water Quality 12.2 12.2 How Much the Plan Costs 12.2 12.3 Flexibility 12.4 CHAPTER 13. IMPLEMENTATION OF WATER MANAGEMENT PLANS BY EXISTING INSTITUTIONS 13.1 13.1 Who Pays for the Plan 13.3 REFERENCES AND TECHNICAL REPORTS 14.1 GLOSSARY 14.6 CONVERSION FACTORS 14.9 APPENDIX A GRAND RIVER IMPLEMENTATION COMMITTEE MEMBERS AND STUDY ORGANIZATION A.1 -iii- PUBLISHED AS SEPARATE APPENDICES APPENDIX A GRAND RIVER IMPLEMENTATION COMMITTEE MEMBERS AND STUDY ORGANIZATION APPENDIX B EVALUATION PROCESS TO SELECT MAIN PLANS APPENDIX C TECHNIQUES USED IN ECONOMIC ANALYSIS APPENDIX D SIMULATION MODELS APPENDIX E WATER QUALITY APPENDIX F WATER QUANTITY APPENDIX G GRAND RIVER BASIN STUDY SUB-COMMITTEE MEMBERS -iv- LIST OF FIGURES Figure Page 2.1 Location Map of the Grand River basin 2.2 3.1 Population Projections for the Grand River basin 3.6 4.1 Effects of reservoir operation upon 1977 flood at Cambridge (Galt) 4.2 4.2 Effect of reservoir regulation on 1977 summer 4.2 low flows, Grand River at Cambridge (Galt) 4.3 Effect of flow augmentation upon summer dissolved oxygen levels - 4.3 Grand River at Blair (above confluence of Grand River and Speed River) 4.4 Frequency of summer flows at Doon, Guelph and Brantford 4.4 (minimum 7-day mean flow) 4.5 Ground water yields from bedrock 4.6 4.6 Ground water yields from overburden 4.7 5.1 Sources of municipal water supply 5.1 5.2 Location of municipal sewage treatment plants 5.6 6.1 Flood damage versus probability of exceedance (1979 damages) 6.11 6.2 Communities prone to frequent flooding 6.13 6.3 Aquatic macrophyte distribution and abundance - 1979 6.18 9.1 Water Management Plan A1 9.2 9.2 Water Management Plan B2 9.14 9.3 Water Management Plan C 9.19 9.4 Water Management Plan D 9.23 9.5 Major sub-basins contributing to agricultural non-point source pollution 9.30 10.1 Flood damage reduction cost-effectiveness 10.1 10.2 Location of river reaches modelled by the water quality model 10.4 10.3 Variation in dissolved oxygen levels for the Grand River during the month 10.7 of August, average year conditions (medium population projections) 10.4 Variation in dissolved oxygen levels for the Grand River during the month of 10.8 August, worst year conditions (medium population projections) 10.5 Grand River — Variation in minimum dissolved oxygen levels at Reach 5 in 10.9 the month of August for a medium population projection 10.6 Grand River — Variation in minimum dissolved oxygen water quality 10.10 index with population growth and sewage flow 10.7 Variations in dissolved oxygen levels for the Speed River during the month 10.12 of August, average year (medium population) 10.8 Variations in dissolved oxygen levels for the Speed River during the month of 10.13 August, worst year (medium population) 10.9 Speed River — Variation in minimum dissolved oxygen levels at Reach 7 in 10.15 the month of August, worst year (medium population) 10.10 Speed River — Variation of the dissolved oxygen water quality index with population growth 10.16 10.11 Present value of costs and net benefits of main plans versus 10.21 population projections 11.1 Comparison of main plans for a medium population projection 11.4 A.1 Organization of the Grand River Basin Water Management Study A.3 -v- LIST OF TABLES Table Page 3.1 Past and Projected Urban and Rural 3.7 Population Growth Within the Grand River Basin 5.1 Existing Urban and Rural Water Uses 5.3 5.2 Existing Recreational Water Uses 5.4 5.3 Presence (X) of Common Fish Species in Reaches of the Main Grand River 5.9 5.4 Presence (X) of Common Fish Species in Reaches of the Speed and Eramosa Rivers 5.9 6.1 Additional Municipal Water Supply Necessary 6.2 to Meet Average Day Projected Demand, 2001 and 2031 6.2 Additional Municipal Water Supply Necessary 6.3 to Meet Projected Maximum Day Demand, 2001 and 2031 6.3 Summary of Existing Municipal Water Supplies 6.5 6.4 Estimated Daily Industrial Water Demand from Private Sources of Supply in 6.6 Kitchener, Waterloo, Cambridge and Guelph, 2001 and 2031 6.5 Livestock Water Demand in the Grand River Basin, 1976, 2001 and 2031 6.6 6.6 Estimated Irrigation Water Demand and Supply over Main Irrigation Season 6.7 6.7 Selected Flood Damage Chronology Within the Grand River Watershed 6.9 6.8 Contributing Sources and Seasonal Distribution 6.19 of Phosphorus and Nitrogen Loadings 6.9 Contributing Sources and Seasonal Distribution 6.22 of Suspended Sediment Loadings 7.1 Flood Damage Reduction on the Nith River 7.4 7.2 Municipal Sewage Treatment Costs for Local Areas 7.7 9.1 Costs for Flood Protection Measures Included in Plan A 9.3 9.2 Municipal Sewage Treatment Requirements for Plan A 9.5 9.3 Water Supply Requirements arid Costs for Plan A 9.6 9.3a Total costs of Plans A1 and A2 9.7 9.4 Lands Affected by the Everton Reservoir 9.10 9.4a Total costs of Plan A3 - Everton Reservoir 9.10 9.4b Total costs of Plan A4 9.12 9.5 Costs for Flood Protection Measures Included in Plan B 9.13 9.6 Municipal Sewage Treatment Requirements for Plan B 9.15 9.7 Lands Affected by the Montrose Reservoir (Multi-Purpose) 9.17 9.7a Total cost of Plans B1 and B2 9.17 9.8 Costs for Flood Protection Measures Included in Plan C 9.18 9.9 Lands Affected by St.
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