GUIDING SOLUTIONS IN THE NATURAL ENVIRONMENT Environmental Impact Study (EIS) Durham Live Tourist Destination Bayly Street and Church Street City of Pickering Prepared For: Triple Property Prepared By: Beacon Environmental Limited Date: Project: February 2020 213227 MARKHAM BRACEBRIDGE GUELPH PETERBOROUGH BARRIE 80 Main Street North 126 Kimberley Avenue 373 Woolwich Street 305 Reid Street 6 Cumberland Street Markham, ON L3P 1X5 Bracebridge, ON P1L 1Z9 Guelph, ON N1H 3W4 Peterborough, ON K9J 3R2 Barrie, ON L4N 2P4 T) 905.201.7622❖ F) 905.201.0639 T) 705.645.1050 T) 519.826.0419 T) 705.243.7251 T) 705.999.4935 Durham Live Tourist Destination - EIS Table of Contents page 1. Introduction ............................................................................................... 1 2. Methodology .............................................................................................. 2 2.1 Background Review ...................................................................................................... 2 2.2 Field Investigations ....................................................................................................... 2 2.2.1 Aquatic Habitat ................................................................................................................. 2 2.2.2 Vegetation Communities .................................................................................................. 3 2.2.3 Breeding Birds .................................................................................................................. 3 2.2.4 Breeding Amphibians ....................................................................................................... 4 2.2.5 Endangered Bats.............................................................................................................. 4 2.2.6 Incidental Wildlife ............................................................................................................. 4 2.3 Water Balance Analysis ................................................................................................ 5 3. Policy Review ............................................................................................ 5 3.1 Provincial Policy Statement (2014) ............................................................................... 5 3.2 Durham Regional Official Plan (2017 Office Consolidation) .......................................... 6 3.3 City of Pickering Official Plan (2018) ............................................................................. 7 3.4 Toronto and Region Conservation Authority Regulations (Ontario Regulation 166/06) (2006) .............................................................................................................. 9 3.4.1 Toronto and Region Conservation Authority Living City Policies for Planning and Development (2014) .................................................................................................. 9 3.5 Endangered Species Act (2007) ................................................................................. 10 4. Existing Conditions................................................................................. 10 4.1 Physical Resources .................................................................................................... 10 4.1.1 Landforms and Land Use ............................................................................................... 10 4.1.2 Groundwater Resources ................................................................................................ 10 4.1.3 Surface Water Drainage ................................................................................................. 11 4.2 Aquatic Resources ..................................................................................................... 11 4.2.1 Head Water Drainage Features ..................................................................................... 12 4.3 Terrestrial Resources ................................................................................................. 15 4.3.1 Vegetation Communities ................................................................................................ 15 4.3.1.1 Cultural Communities ..................................................................................... 15 4.3.1.2 Upland Communities ...................................................................................... 18 4.3.1.3 Wetland Communities .................................................................................... 18 4.3.2 Flora ............................................................................................................................... 20 4.3.3 Amphibians ..................................................................................................................... 21 4.3.4 Reptiles .......................................................................................................................... 22 4.3.5 Breeding Birds ................................................................................................................ 22 4.3.6 Mammals ........................................................................................................................ 23 4.3.6.1 Incidental Observations .................................................................................. 23 4.3.6.2 Bat Habitat ...................................................................................................... 23 5. Assessment of Natural Heritage Features ............................................. 23 Durham Live Tourist Destination - EIS 5.1 Provincially Significant Wetlands ................................................................................ 23 5.2 Significant Woodlands ................................................................................................ 24 5.3 Significant Valleylands ................................................................................................ 24 5.4 Significant Wildlife Habitat .......................................................................................... 25 5.5 Habitat of Endangered or Threatened Species ........................................................... 26 6. Proposed Development .......................................................................... 27 6.1 General Description .................................................................................................... 27 6.2 Stormwater Management ........................................................................................... 27 6.3 Public Trail .................................................................................................................. 28 7. Impact Assessment and Proposed Mitigation ...................................... 28 7.1 Potential Negative Impacts ......................................................................................... 29 7.1.1 Vegetation Removal ....................................................................................................... 29 7.1.2 Post Development Effects on Wetland Water Balance .................................................. 29 7.1.2.1 Wetlands Hydrologic Sensitivity ..................................................................... 29 7.1.2.2 Wetland Units Water Balance ......................................................................... 31 7.1.3 Removal of Drainage Feature ........................................................................................ 34 7.1.4 Stormwater Quality Effects on Wetland Features .......................................................... 35 7.1.5 Other Indirect Impacts .................................................................................................... 35 7.1.5.1 Potential Effects on the Integrity of Natural Features During Construction.................................................................................................... 35 7.1.5.2 Noise and Light Effects ................................................................................... 35 7.1.5.3 Waste Dumping .............................................................................................. 35 7.1.5.4 People and their Companion Animals ............................................................ 35 7.2 Proposed Mitigation .................................................................................................... 35 7.2.1 Buffers to Natural Features ............................................................................................ 35 7.2.1.1 Buffers to the Provincially Significant Wetland and Significant Woodland ........................................................................................................ 36 7.2.1.2 Buffer to the Valleyland .................................................................................. 37 7.2.1.3 Temporary Loss of Wetland at SWM Outfall .................................................. 37 7.2.2 Restoration Plan ............................................................................................................. 38 7.2.3 Wetland Water Balance and Low Impact Development Measures (LID) ....................... 38 7.2.4 Replication of Headwater Drainage Features Function ................................................. 38 7.2.5 Water Quality Control ..................................................................................................... 39 7.2.6 Timing of Vegetation Removal ....................................................................................... 39 7.2.7