HIGHWAY 401 EXPANSION PROJECT CREDIT RIVER TO REGIONAL ROAD 25
Design and Construction Report No. 1
Detail Design and Class Environmental Assessment Study (Group ‘B’)
Document Number: WCC-ENV-RPT-00001
AUGUST 2019
Highway 401 Expansion Project Credit River to Regional Road 25
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August 2019
HIGHWAY 401 EXPANSION PROJECT DESIGN AND CONSTRUCTION REPORT DETAIL DESIGN AND CLASS ENVIRONMENTAL ASSESSMENT STUDY (GROUP ‘B’)
Prepared by West Corridor Constructors:
______Salina Chan Melissa Raffoul Environmental Planner Environmental Planner
Reviewed by:
______Sarah Merriam Derek Surgeoner Environmental Manager Deputy Design Lead Approved by:
______David Ellis Paul Draycott Project Director Environmental Director
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THE PUBLIC RECORD This Design and Construction Report (DCR) has been prepared under the Ministry of Transportation (MTO) Class Environmental Assessment for Provincial Transportation Facilities (2000). The preliminary design for this project was approved following the filing of the “Highway 401 Improvements from East of the Credit River to Trafalgar Road W.O. 07-20021, Preliminary Design and Class Environmental Assessment Study (May, 2013)” and the “Highway 401 Improvements from Trafalgar Road to Regional Road 25 Preliminary Design and Class Environmental Assessment Study, W.O. 07-20024 (March, 2013)”. This DCR is available for a 30-day agency and public review period commencing August 22, 2019 and ending September 20, 2019 during regular businesses hours at the following locations:
Highway 401 Expansion Ministry of Transportation Region of Peel, Clerk’s Division Project Office Central Region, Major 2000 Argentia Road, Plaza Projects Office 10 Peel Centre Drive, 5, Suite 500 Suite A and B 159 Sir William Hearst Brampton, ON L6T 4B9 Mississauga, ON L5N 2R7 Avenue, 7th Floor, Toronto, ON M3M 0B7 Tel: (416) 235-3749 City of Mississauga, Office Halton Region, Clerk’s Town of Milton, Clerk’s of the City Clerk Office Office 300 City Centre Drive 1151 Bronte Road 150 Mary Street Mississauga, ON L5B 3C1 Oakville, ON L6M 3L1 Milton, ON L9T 6Z5 Town of Halton Hills, The DCR is also available for review online at the Clerk’s Department project website: www.401expansion-missisauga- milton.ca 1 Halton Hills Drive Halton Hills, ON L7G 5G2
Ce document hautement spécialisé n'est disponible qu'en anglais en vertu du réglement 671/92, qui en exempte l'application de la Loi sur les services en français. Pour de l'aide en français, veuillez communiquer au 1-888-619-1665.
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Table of Contents
1 INTRODUCTION ...... 9
1.1 HIGHWAY 401 EXPANSION PROJECT ...... 9 1.2 ENVIRONMENTAL ASSESSMENT PROCESS ...... 11 ONTARIO ENVIRONMENTAL ASSESSMENT ACT (EAA) ...... 11 CANADIAN ENVIRONMENTAL ASSESSMENT ACT (CEAA) ...... 12 1.3 PUBLIC PRIVATE PARTNERSHIP ...... 12
2 DESCRIPTION OF WORKS INCLUDED IN DCR NO. 1 ...... 14
2.1 CLEARING AND GRUBBING ...... 15 2.2 CN RAIL OVERHEAD STRUCTURES ...... 15 2.3 CP RAIL OVERHEAD STRUCTURES ...... 16 2.4 TRAFALGAR ROAD UNDERPASS STRUCTURE ...... 16
3 CONSULTATION ...... 16
3.1 CONSULTATION DURING PRELIMINARY DESIGN ...... 16 3.2 CONSULTATION DURING DETAIL DESIGN – OVERALL APPROACH ...... 17 PROJECT CONTACT LIST...... 17 NOTICE OF STUDY COMMENCEMENT AND DESIGN AND CONSTRUCTION REPORT NO. 1 SUBMISSION ...... 17 PROJECT WEBSITE, TOLL-FREE LINE AND EMAIL ADDRESS ...... 18 PUBLIC INFORMATION CENTRE (PIC) ...... 18 CONSULTATION WITH EXTERNAL AGENCIES AND KEY STAKEHOLDERS ...... 19 GOVERNMENTAL AUTHORITY ENVIRONMENTAL MEETING (GAEM) ...... 19 INDIGENOUS CONSULTATION ...... 19 3.3 CONSULTATION UNDERTAKEN UP TO DCR NO. 1 WORKS ...... 19 GAEM NO. 1 ...... 19 CONSULTATION WITH EXTERNAL AGENCIES AND KEY STAKEHOLDERS ...... 20
4 DETAILED DESCRIPTION OF DCR NO. 1 DESIGN AND CONSTRUCTION ...... 26
4.1 CLEARING AND GRUBBING ...... 26 4.2 CN RAIL OVERHEAD STRUCTURES ...... 27 4.3 CP RAIL OVERHEAD STRUCTURES ...... 28 4.4 TRAFALGAR ROAD UNDERPASS STRUCTURE ...... 29 4.5 CONSTRUCTION STAGING AND TRAFFIC MANAGEMENT ...... 30
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4.6 UTILITIES ...... 31
5 ENVIRONMENTAL IMPACTS, MITIGATION AND COMMITMENTS ...... 31
5.1 NATURAL ENVIRONMENT ...... 31 TERRESTRIAL ECOSYSTEMS – VEGETATION ...... 31 5.1.1.1 Invasive Species Management ...... 36 TERRESTRIAL ECOSYSTEMS – WILDLIFE AND WILDLIFE HABITAT ...... 37 5.1.2.1 Migratory Birds ...... 40 AQUATIC ECOSYSTEMS – WATERCOURSES, FISH AND FISH HABITAT ...... 41 SPECIES AT RISK ...... 43 5.1.4.1 Aquatic SAR ...... 44 5.1.4.2 Terrestrial SAR ...... 46 DESIGNATED NATURAL AREAS ...... 47 LANDSCAPING AND ECOLOGICAL RESTORATION ...... 47 GROUNDWATER ...... 48 SURFACE WATER ...... 50 5.2 EROSION AND SEDIMENT CONTROL (ESC)...... 51 5.3 DRAINAGE AND HYDROLOGY ...... 52 5.4 EXCESS EARTH ...... 52 5.5 SOCIO-ECONOMIC ...... 54 NOISE AND VIBRATION ...... 54 AIR QUALITY ...... 56 WASTE AND CONTAMINATION...... 58 LAND USE AND PROPERTY ...... 59 NAVIGATION PROTECTION ACT ...... 60 5.6 CULTURAL HERITAGE ...... 60 ARCHAEOLOGY ...... 60 BUILT HERITAGE ...... 61 5.7 ADJACENT STUDIES/PROJECTS...... 63 5.8 SUMMARY OF ENVIRONMENTAL CONCERNS AND COMMITMENTS ...... 64
6 ENVIRONMENTAL APPROVALS AND PERMITS FOR DCR NO. 1 WORKS ...... 75
7 MONITORING ...... 76
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7.1 MONITORING PRIOR TO CONSTRUCTION ...... 76 7.2 CONSTRUCTION MONITORING ...... 76 7.3 EA COMPLIANCE MONITORING ...... 78
8 REFERENCES ...... 78
List of Figures Figure 1: Project Overview Map ...... 10 Figure 2: EA Process and Phased Implementation ...... 13 Figure 3: Bridge Replacements Covered in DCR No. 1 ...... 15
List of Tables Table 1: DCR Breakdown of Works ...... 13 Table 2: Summary of Consultation with External Agencies and Key Stakeholders leading up to DCR No. 1 ...... 20 Table 3: Anticipated ELC Impacted by Clearing and Grubbing ...... 34 Table 4: Summary of SWH Present in the Project limits ...... 38 Table 5: SAR Determined to be Present in the Project Limits ...... 43 Table 6: Other Studies and Projects Adjacent to the Project Limits ...... 63 Table 7: Environmental Concerns and Commitments from DCR No. 1 Detail Design ...... 65 Table 8: Permits, Licenses, Agreements and Approvals for DCR No. 1 Works ..... 75
Appendices Appendix A Consultation Materials Appendix B General Arrangement Drawings for DCR No. 1 Structures Appendix C Existing ELC Communities Appendix D Tables of Environmental Concerns and Commitments from Preliminary Design
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List of Acronyms and Abbreviations AA Archaeological Assessment ACM Asbestos Containing Materials EASR Environmental Activity and Sector Registry ANSI Area of Natural and Scientific Interest BMP Best Management Practices CEAA Canadian Environmental Assessment Act CN Railway Canadian National Railway CP Railway Canadian Pacific CHL Cultural Heritage Landscape CVC Credit Valley Conservation DCR Design and Construction Report DFO Department of Fisheries and Oceans DSS Designated Substances Survey EA Environmental Assessment EAA Environmental Assessment Act EPZ Environmental Protection Zone ESA Endangered Species Act Phase I/II ESA Phase I/II Environmental Site Assessment ESC Erosion and Sediment Control FAA Fisheries Act Authorization GAEM Governmental Authority Environmental Meeting GTA Greater Toronto Area HWM High Water Mark IO Infrastructure Ontario MBCA Migratory Birds Convention Act MECP Ministry of Environment, Conservation and Parks
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MNRF Ministry of Natural Resources and Forestry MP Member of Parliament MPP Member of Provincial Parliament MTCS Ministry of Tourism, Culture and Sport MTO Ministry of Transportation Ontario NSA Noise Sensitive Area OPSD Ontario Provincial Standard Drawing OPSS Ontario Provincial Standards and Specifications P3 Public Private Partnership PHP Provincial Heritage Property PHPPS Provincial Heritage Property of Provincial Significance PIC Public Information Centre PSW Provincially Significant Wetlands PTE Permission to Enter PTTW Permit to Take Water SAR Species at Risk SARA Species at Risk Act SWH Significant Wildlife Habitat SWM Stormwater Management TESR Transportation Environmental Study Report TPO Toronto Premium Outlets TSS Total Suspended Solids UNESCO United Nations Education, Scientific and Cultural Organization WCC West Corridor Constructors
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Executive Summary West Corridor Constructors (WCC) has been selected by the Ministry of Transportation (MTO) and Infrastructure Ontario (IO) to design, build and finance the Highway 401 Expansion Project (the Project), which includes the expansion of approximately 18 kilometres (km) of Highway 401 within the western Greater Toronto Area (GTA), from east of the Credit River in Mississauga to west of Regional Road 25 in Milton. WCC is a fully integrated team led by Aecon Infrastructure Management Inc. (Aecon), Parsons Inc. (Parsons), and Amico Infrastructures Inc. (Amico). The Project includes widening the existing six lane configuration to the following: • 12-lane Core-Collector system from the Credit River to Winston Churchill Boulevard; • 10-lanes from Winston Churchill Boulevard to the Highway 407 ETR/Highway 401 Interchange; • 12-lane Core-Collector system from the Highway 407 ETR/Highway 401 Interchange to James Snow Parkway; and • 10-lanes from the James Snow Parkway to Regional Road 25. The Project also includes median High Occupancy Vehicle (HOV) lanes and modifications to existing infrastructure to accommodate the proposed widening, including 9 new, replaced or widened bridges, 5 bridge rehabilitations, retaining wall construction/rehabilitation and 7 structural culvert replacements, extensions or rehabilitations. The Project will also include supporting facilities and features such as drainage, lighting, signage and carpool lots. This Project is being completed as a Group ‘B’ project under the MTO Class Environmental Assessment for Provincial Transportation Facilities (2000). Consultation is currently ongoing as part of the detail design phase. A Notice of Study Commencement and Design and Construction Report No. 1 Submission was issued and distributed in August 2019. Meetings with key stakeholders / agencies were held to present the Project and discuss their interests and concerns. A website (www.401expansion-mississauga-milton.ca), an email address (info@401expansion- mississauga-milton.ca) and a 24-hour toll free line (1-888-619-1665) were set up for the Project. A Public Information Centre, future Design and Construction Report (DCR) review periods, and ongoing correspondence with stakeholders and members of the public are upcoming consultation opportunities. This DCR is available for 30-day public review period and documents the Project and Early Works (Clearing and Grubbing, Replacement of the CN Rail Overhead Structure, CP Rail Overhead Structure, and Trafalgar Road Underpass Structure). This DCR includes information on the environmental assessment process, design details, consultation undertaken, anticipated impacts and associated mitigation measures.
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1 Introduction 1.1 Highway 401 Expansion Project The Highway 401 Expansion project (the Project) includes the expansion of approximately 18 kilometres (km) of Highway 401 within the western Greater Toronto Area (GTA), from east of the Credit River in Mississauga to west of Regional Road 25 in Milton. West Corridor Constructors (WCC) has been selected by the Ministry of Transportation (MTO) and Infrastructure Ontario (IO) to design, build and finance the Project. WCC is a fully integrated team led by Aecon Infrastructure Management Inc. (Aecon), Parsons Inc. (Parsons), and Amico Infrastructures Inc. (Amico). The Project (as shown in Figure 1) includes widening the existing six lane configuration to the following: • 12-lane Core-Collector system from the Credit River to Winston Churchill Boulevard; • 10-lanes from Winston Churchill Boulevard to the Highway 407 ETR/Highway 401 Interchange; • 12-lane Core-Collector system from the Highway 407 ETR/Highway 401 Interchange to James Snow Parkway; and • 10-lanes from the James Snow Parkway to Regional Road 25. The Project includes median High Occupancy Vehicle (HOV) lanes and modifications to existing infrastructure to accommodate the proposed widening, including 9 new, replaced or widened bridges, 5 bridge rehabilitations, retaining wall construction/rehabilitation and 7 structural culvert replacements, extensions or rehabilitations. The scope of work for the Project includes, but is not limited to: • Erosion and sediment control, and environmental protection; • Earthwork, excavation, and grading; • Drainage, storm water management, and natural channel realignments; • Structural and non-structural culvert replacements; • Bridge replacements and rehabilitations; • Retaining walls; • Carpool lots; • Utility relocations; • High Mast Lighting, municipal street lighting, traffic signals, and electrical systems; • ITS/ATMS infrastructure; • Overhead signage;
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• Asphalt and concrete paving; • Roadside protection; and, • Landscaping and restoration.
Figure 1: Project Overview Map The preliminary design for this Project was completed as a Group ‘B’ project under the MTO Class Environmental Assessment for Provincial Transportation Facilities (2000) in 2013. The projects were approved following the filing of the two Transportation Environmental Study Reports (TESRs) for the “Highway 401 Improvements from East of the Credit River to Trafalgar Road W.O. 07-20021, Preliminary Design and Class Environmental Assessment Study (May, 2013)” and the “Highway 401 Improvements from Trafalgar Road to Regional Road 25 Preliminary Design and Class Environmental Assessment Study, W.O. 07-20024 (March, 2013)”. In 2015, the Detail Design and Class EA was advanced for three of the structures from the Highway 401 Improvements from Trafalgar Road to Regional Road 25 (March 2013) TESR. This was documented in the Design and Construction Report (DCR) for the “Replacement and Widening of Highway 401 Regional Road 25 Underpass, 5th Line Overpass and Oakville Creek West Branch Structures, DB-2014-2009 (August 2015)”. Construction for the works in this DCR has been completed. WCC is carrying forward the recommendations from preliminary design and will complete the detail design for the Highway 401 Expansion Project, as well as carry out the construction.
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1.2 Environmental Assessment Process
Ontario Environmental Assessment Act (EAA) The Ontario Environmental Assessment Act (EAA) forms the basis and foundation for environmental assessments (EA) undertaken within the province. The purpose of the EAA is to help protect the environment by requiring projects subject to the EAA to follow a planning process that considers its environmental impacts and mitigation measures to help avoid or reduce adverse impacts to the environment. The EAA identifies two planning and approval processes: Individual EAs and Class EAs. Class EAs, once approved by the Ministry of Environment, Conservation and Parks (MECP), provide for specific classes of undertakings to follow an alternative planning and decision-making process that is more streamlined than an individual EA (which is laid out in Part II of the EAA). Given that the approved process is followed, undertakings conducted under Class EAs do not require formal review and approval under the EAA and can proceed with implementation, if all other approvals have been obtained. The MTO Class Environmental Assessment for Provincial Transportation Facilities (2000) outlines the EA process for specific groups of provincial transportation projects. This Project is following the Class EA process for a Group ‘B’ project, which generally includes major improvements to existing provincial transportation facilities. A provision in the MTO Class EA document states that if a project has not proceeded to construction within five years of the Notice of Submission for the TESR, and a DCR has not been submitted within that five-year period, a review of the not-constructed portions of the Project must be carried out (MTO, 2000). Following the preliminary design and Notice of Submission of the TESRs for this Project in 2013, AECOM was retained by MTO in 2017 and 2018 to carry out additional field and desktop investigations for all project factors (e.g., terrestrial and aquatic ecosystems, groundwater, air quality, noise and vibration, etc.) to update and supplement the findings from 2013. The existing conditions have not changed significantly since the TESRs were approved in 2013, and environmental conditions that have changed are documented in the 2017 and 2018 investigations. The information from the TESRs in 2013, the additional studies in 2017 and 2018, and any updates from the design have also been documented in subsequent sections to inform the detail design work described in this DCR. As part of the Class EA process, EA documentation is required to record the planning and decision-making process that was undertaken. This Project includes the submission and filing of a Design and Construction Report (DCR) for a 30-day public and agency review period. Multiple DCRs will be prepared and made available for public and agency review for this Project (for more details see Section 1.3). Any concerns and comments should be submitted to WCC. WCC will consider all comments received during the public and agency review process. Following the 30-day DCR review period, and
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subject to obtaining required permits, approvals, and authorizations, Environmental Clearance will be issued to allow for construction of the works covered in the DCR to commence.
Canadian Environmental Assessment Act (CEAA) The Canadian Environmental Assessment Act, 2012 (CEAA) outlines the federal EA process for major projects to protect the components of the environment that fall within federal jurisdiction from significant adverse environmental effects caused by a project. The types of activities to which CEAA applies are called “designated projects” and are identified in the regulations. The proposed works are not listed as “designated projects” under CEAA, and therefore, CEAA approvals are not required for this Project. 1.3 Public Private Partnership The Public Private Partnership (P3) model is a cooperative arrangement between the public sector (IO/MTO) and the private sector (WCC), which allows for more effective delivery of larger and more complex infrastructure projects. IO/MTO and WCC, a consortium comprised of three private firms (Aecon, Parsons, and Amico) integrated in a Joint Venture, are working together under a P3 approach. WCC will design, build, and finance the Project. The Design-Build approach is a way to deliver construction projects where the designer and contractor work together as one entity, known as the design-builder (WCC), to provide both design and construction services to the owner of the infrastructure (IO/MTO). The design-builder is involved at the onset of a project, allowing for greater effectiveness, collaboration, and innovation. Using the Design-Build model gives the flexibility that design does not have to be fully complete before construction can begin. Portions of the Project will be constructed as the design is completed for the proposed works, resulting in a phased implementation of the Project. Before construction can start, environmental clearance is needed through the filing of the DCR and obtaining the required permits, approvals, and authorizations. Three DCRs are anticipated for this Project to document the proposed works and to obtain environmental clearance (EA process and phased implementation shown in Figure 2). Only the portions of construction included in each DCR can proceed to construction. The Project works covered in each DCR is summarized in Table 1.
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Figure 2: EA Process and Phased Implementation
Table 1: DCR Breakdown of Works DCR Project works covered in each DCR DCR No. 1 • Clearing and Grubbing of vegetation within the Project Limits (August • CN Rail Overhead Bridge Replacement 2019) • Trafalgar Road Underpass Bridge Replacement • CP Rail Overhead Bridge Replacement • Traffic and Construction Staging DCR No. 2 • Civil Works including roadway design, drainage and stormwater (Anticipated management, electrical/ITS/ATMS, carpool lots, signage, Fall 2019) watercourse realignments, landscaping and restoration • Sixteen Mile Creek east of Regional Road 25 Culvert Extension and Rehabilitation • Sixth Line Underpass Bridge Replacement • James Snow Parkway Structure – Toe / Retaining Walls • Retaining Walls at Regional Road 25 Off-ramp • Oakville Creek East Bridge Replacement • Basketweave Highway 401 & 407ETR New Structure
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DCR Project works covered in each DCR • Ninth Line Underpass Bridge Rehabilitation • Highway 407 South to East ramp over Highway 401 Bridge Rehabilitation • Winston Churchill Boulevard Underpass Bridge Rehabilitation • Derry Road Overpass – Eastbound and Westbound Bridge Rehabilitation and Widening • Off-ramp to Mississauga Road Retaining Wall Rehabilitation • Creditview Road Underpass Bridge Replacement • Traffic and Construction Staging DCR No. 3 • Civil Works including watercourse realignments, landscaping and (Anticipated restoration Winter 2020) • Sixteen Mile Creek Culvert west of Fifth Line Culvert Extension and Rehabilitation • East Oakville Creek Culvert Replacement • Highway 407ETR over Highway 401 and Ramp 401W-407E eastbound lanes Bridge Rehabilitation • Highway 407ETR over Highway 401 and Ramp 401W-407E westbound lanes Bridge Rehabilitation • Tenth Line west of Trafalgar New Culvert and Extension • Winston Churchill West Culvert Replacement • Mullet Creek Culvert Extension and Rehabilitation • Credit River Bridge Replacement • Traffic and Construction Staging
2 Description of Works Included in DCR No. 1 The works included in DCR No. 1 are the clearing and grubbing of vegetation within the Project Limits, and the CN Rail Overhead Bridge Replacement, the CP Rail Overhead Bridge Replacement, and the Trafalgar Road Underpass Bridge Replacement (Figure 3).
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Figure 3: Bridge Replacements Covered in DCR No. 1 2.1 Clearing and Grubbing Clearing, the removal of vegetation, such as trees and shrubs, and grubbing, the removal of roots and stumps remaining in the soil, are important tasks at the onset of any major infrastructure project. Clearing and grubbing operations typically represent the first phase of construction, clearing the area of vegetation for construction to begin. The land use within the Project limits are largely represented by commercial, agricultural, industrial and residential areas. The natural areas that exist within the Project limits are generally isolated from other natural areas by the existing highway, roads, agricultural lands or developed areas. Vegetation adjacent to the highway is mostly landscaped and cultural, meaning the vegetation community is originating from or maintained by anthropogenic or culturally based disturbances. Examples of this are areas with planted vegetation or areas that are used for agriculture; these areas also typically have a large proportion of introduced, or invasive, species. Naturalized areas are predominantly found adjacent to watercourses or at interchanges, and while some are natural forested areas, most were identified as being a cultural vegetation type. 2.2 CN Rail Overhead Structures The CN Rail Overhead structures (Site 10-057/1 & 10-057/2) are located approximately 850m east of Regional Road 25. The existing structures, built around 1957, are single- span rigid frame structures. The total width of the two structures is 36.40m and carries five traffic lanes of Highway 401 in the westbound direction and four traffic lanes of
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Highway 401 in the eastbound direction over two CN rail tracks. The original bridge was widened in 1981 and needs to be widened again as part of this Project to accommodate the expansion of Highway 401. 2.3 CP Rail Overhead Structures The CP Rail Overhead Structures (Site 24-126/1 & 24-126/2) are located approximately 420m west of Creditview Road. The existing structures, built around 1957, are single- span reinforced concrete rigid frame structures. The total width of the two structures is 37.30m and carries three lanes of Highway 401 traffic in the eastbound and westbound direction over the CP rail track. The original bridge was last rehabilitated in 2000 and needs to be widened as part of this Project to accommodate the expansion of Highway 401. 2.4 Trafalgar Road Underpass Structure The existing structure (Site 10-080) is a four-span cast-in-place concrete T-beams bridge constructed in 1958. The total width of the structure is 17.17m and carries two traffic lanes of Trafalgar Road in the northbound and southbound direction over Highway 401. The existing bridge was rehabilitated in 2011 and needs to be widened as part of this Project to accommodate the expansion of Highway 401.
3 Consultation Consultation is an integral component of the EA process. Section 3.1 summarizes the consultation undertaken during preliminary design, Section 3.2 summarizes consultation efforts for the detail design phase, and Section 3.3 discusses the consultation undertaken specifically for the works covered under DCR No. 1. 3.1 Consultation during Preliminary Design Both the preliminary design projects were completed in 2013 as Group ‘B’ projects under the MTO Class EA and their TESRs document the consultation that was undertaken during that time. The consultation carried out during preliminary design included developing a Project contact list, publishing of the Notices of Study Commencement, Notices of Public Information Centre (PIC) and Notices of TESR Submission in local newspapers, hosting PICs, and meeting and consulting with key federal and provincial agencies, local municipalities and conservation authorities, elected officials, emergency service providers, interest groups, Indigenous communities, utility companies, and the public. Two PICs were held per study, for a total of four PICs.
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Following the completion of the preliminary design and prior to the commencement of detail design, MTO continued consultation with external stakeholders, including municipalities and regulatory agencies, regarding the upcoming detail design study, potential impacts, permits and authorizations. WCC has built on the consultation undertaken by MTO during the preliminary design and subsequent pre-detail design phase. Details of the consultation activities are listed in Section 3.2 and 3.3. 3.2 Consultation during Detail Design – Overall Approach WCC is undertaking consultation throughout the detail design and construction phases of the Project. The following sections describe the general consultation methods being used throughout the detail design phase of the Project.
Project Contact List A Project contact list of potentially affected and interested stakeholders was developed based on the preliminary design and pre-detail design contact lists and is continually being updated. The contact list is comprised of Members of Parliament (MPs) and Members of Provincial Parliament (MPPs), relevant federal and provincial agencies, including regulatory agencies, municipalities and Conservation Authorities, emergency services, interest groups, utility companies, Indigenous communities, other transportation providers (e.g. school boards, 407ETR, transit providers, rail companies, trucking organizations), and members of the public that requested to be added to the contact list. The Project contact list is provided in Appendix A. Public stakeholders, including their personal information, are not included on this list in accordance with the Freedom of Information and Protection of Privacy Act.
Notice of Study Commencement and Design and Construction Report No. 1 Submission A Notice of Study Commencement and Design and Construction Report No. 1 Submission was sent out August 15, 2019 and informed potentially affected or interested parties about the commencement of the detail design phase of the Project and that the first Design and Construction Report (DCR) has been prepared and is available for the 30-day public review period. The Notice of Study Commencement and DCR No. 1 Submission included details of the Project works and background, details about the EA process being followed, works included in DCR No. 1, the viewing locations for the DCR, and key WCC contacts. The Notice of Study Commencement and DCR No. 1 Submission directed interested parties to resources for additional project information, including a link to the project website and phone line.
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The Notice of Study Commencement and DCR No. 1 Submission was published in the following local newspapers: • Brampton Guardian (August 15, 2019) • Mississauga News (August 15, 2019) • Milton Champion (August 15, 2019) • Georgetown Independent (August 15, 2019) • Le Metropolitain – Mississauga (French language) (August 15, 2019) • Le Metropolitain – Brampton (French language) (August 15, 2019) The Notice of Study Commencement and DCR No. 1 Submission was also distributed to residents and businesses adjacent to the Project limits via Neighbourhood Mail on August 15, 2019 and was also sent via email/regular mail to the Project contact list. The Notice of Study Commencement and DCR No. 1 Submission materials are provided in Appendix A. WCC will address and consider all comments and concerns brought up during the public and agency review period (August 22, 2019 to September 20, 2019), and once all permits and approvals have been obtained, WCC can proceed to construction for the works covered in DCR No. 1.
Project Website, Toll-Free Line and Email Address A project website (http://www.401expansion-mississauga-milton.ca) was developed for the Project to provide information on the Project, the Class EA process being followed, EA notices and documents, and project updates, including construction progress and traffic impacts. Interested members of the public can also sign up for project updates and submit comments through the website. The website will be available throughout the duration of the Project and is an effective way to reach a wide range of stakeholders. In addition to the website, a 24-hour toll-free line (1-888-619-1665) and a project email address (info@401expansion-mississauga- milton.ca) are available for stakeholders to contact WCC.
Public Information Centre (PIC) One PIC is planned for this Project. The PIC is anticipated to be held in Fall 2019 and will present details about the entire Project including the expansion of the highway and proposed bridge works, potential impacts of the design, and proposed mitigation measures. The PIC provides an opportunity for the public to provide comments and questions about the Project and for WCC to be aware of the public’s concerns and address them. Notification of the PIC will be published in local newspapers included in Section 3.2.2, on the Project website and distributed to those on the Project contact list.
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Consultation with External Agencies and Key Stakeholders Consultation with external agencies and key stakeholders has started and will be ongoing throughout the Project, as needed. Consultation may include meetings, teleconferences, providing project information for review, and general email correspondence. A list of the external agencies consulted during the Project is in Appendix A. Refer to Section 3.3 for a description of the consultation with external agencies and key stakeholders specific to each DCR.
Governmental Authority Environmental Meeting (GAEM) The purpose of GAEMs are to allow for direct communication with key governmental agencies on environmental details that are relevant and of interest to their agency. GAEMs are held online via Webex and will be held on an as-needed basis throughout the Project. Individual, face-to-face meetings with agencies will be held if required. Members of the GAEM include representatives from the Department of Fisheries and Oceans (DFO), Ministry of Natural Resources and Forestry (MNRF), MECP, Ministry of Tourism, Culture and Sport (MTCS), and Transport Canada.
Indigenous Consultation MTO maintains the Indigenous community engagement/consultation responsibility for the Project. The following Indigenous communities are being consulted at key milestones in the Project, including the Notice of Study Commencement and DCR No. 1 Submission, Notice of PIC, and Notices of DCR Submission. MTO sent letters to each Indigenous community encouraging them to provide comments and/or concerns and offering to meet with them directly, if required. Indigenous Communities consulted with are as follows: • Mississaugas of the Credit First Nation; • Six Nations of the Grand River; and, • Haudenosaunee Confederacy Chiefs Council (Haudenosaunee Development Institute). 3.3 Consultation Undertaken up to DCR No. 1 Works Specific consultation was undertaken to correspond to the works covered up to DCR No. 1 and are summarized below.
GAEM No. 1 The first GAEM was held via Webex on July 3, 2019. The purpose of this GAEM was to introduce the Project, summarize the existing conditions and project scope, discuss elements of design and upcoming construction activities (items detailed in DCR No. 1),
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and potential permitting and authorizations required for these works, and the key project contacts. The GAEM was attended by representatives from MECP and MTCS. Discussions related to general consultation approach (Indigenous communities, public), EA approach, and built and cultural heritage impacts. The presentation and minutes are included in Appendix A. Consultation with External Agencies and Key Stakeholders WCC held targeted meetings and exchanged correspondence with external agencies and key stakeholders that may be affected or interested leading up to the DCR No. 1 works (summarized in Table 2). Table 2: Summary of Consultation with External Agencies and Key Stakeholders leading up to DCR No. 1 Summary of Consultation, WCC Response Agency/ Date including concerns with DCR No. Stakeholder 1 Works CP Rail April 30, Meeting to discuss the proposed WCC provided 2019 bridge design at the CP Rail drawings to CPR Structure, CP design standards and for their review and approvals / permits required. CPR comments received interested in reviewing bridge August 7, 2019. drawings to confirm they meet CPR The CP Rail standards. CP Rail Agreement is agreement is in the required for the works. process of being obtained. July 26, WCC provided drawings of CP Rail WCC revised 2019 structure for CPR to review. CPR drawings as per provided comments and mark-ups comments. No August on the drawings. No major major design 7, 2019 concerns, some revisions to notes changes. Whistle and addition of text to drawings with post will be regards to protection of the railway protected. and track settlement monitoring related to pile driving activities. Identified a whistle post requiring protection during construction. Notes on placement of deck drains
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Summary of Consultation, WCC Response Agency/ Date including concerns with DCR No. Stakeholder 1 Works outside the rail right of way to prevent undercutting at embankments. CN Rail May 27, Meeting to discuss the proposed WCC provided 2019 bridge design at the CN Rail drawings to CNR Structure, CN design standards and for their review. approvals / permits required. CNR The CN Rail interested in reviewing bridge Agreement is in the drawings to confirm they meet CNR process of being standards. CNR also interested in obtained. drainage and demolition. CN Rail Agreement is required for the works. Halton Region March Meeting to introduce the project and WCC provided 26, 2019 discuss permitting and water and early designs and wastewater relocations. permitting information. May 31, Meeting to review the proposed WCC revised the 2019 design for the Trafalgar Road design to include Underpass Structure, including the the ATMS/ITS design for the bicycle lanes. Halton conduit. WCC Region indicated requirement for continued to ATMS/ITS conduit in the new progress design Trafalgar Road bridge. Discussed and engage Halton other works in Halton Region as Region. well but additional details to be provided as design progresses. August Meeting to review progress of water WCC continued to 2, 2019 and wastewater relocations. Halton work with and Region confirmed they do not have update Halton further comments on the Trafalgar Region on design Bridge Design Package. The ITS progress. conduit was added and is under
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Summary of Consultation, WCC Response Agency/ Date including concerns with DCR No. Stakeholder 1 Works review by MTO and IO. Discussed progress of adjacent design and construction contracts. Peel Region April 5, Meeting to introduce the project and WCC provided 2019 discuss permitting and water and early designs and wastewater relocations. permitting information. July 12, Meeting to review the proposed WCC shared 2019 design for several regional roads, drawings and including Derry Road and Winston concept designs for Churchill Boulevard, and water and structure wastewater relocations. Interested improvements and in coordination between regional traffic staging. projects and the Highway 401 WCC continued Expansion Project and local traffic discussions about impacts resulting from construction. water and wastewater. July 26, Meeting to review the progress of WCC continued to 2019 the water and wastewater work with and relocations. update Peel Region on design progress. City of June 26, Meeting to review the design WCC provided Mississauga 2019 elements of City interest, permitting requested designs and approval requirements, and and documents details regarding Mullet Creek prior to follow-up works and Creditview Road meeting. Underpass Structure. August Meeting to discuss access to City- WCC to further the 13, 2019 owned lands, related permitting, creek realignment and Mullet Creek realignment. design and Discussed CVC’s involvement in determine tree design review and/or approval. removals. WCC to
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Summary of Consultation, WCC Response Agency/ Date including concerns with DCR No. Stakeholder 1 Works set up a meeting mid-September to revisit Mullet Creek design, review, access, and permits. Town of Milton July 4, Meeting to review design elements WCC furthered 2019 of Town interest, permitting and designs and will approval requirements, and details provide when regarding the Tremaine Road available, interchange and High Point Pond confirming that (HPP). No objections to the designs for the construction of an offline culvert as culvert do not long as the function of the HPP weir impact the HPP is not compromised. The Town weir. WCC set up requested a presentation to council the council in advance of the PIC. presentation. Town of July 11, Meeting with Town’s Traffic WCC sent the Haul Halton Hills 2019 Department to discuss using Town Route Plan to the roads for haul routes. Town has no Town. objection with WCC’s proposed access locations and routes and provide permission for WCC to use the proposed routes. However, damage to the road as a result of the heavy trucks are to be repaired by WCC. July 26, Meeting to review design elements WCC to provide 2019 of Town interest, traffic impacts and traffic detour plans communications, and has when available. requested a presentation to council WCC will in advance of the PIC. coordinate with the Town regarding
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Summary of Consultation, WCC Response Agency/ Date including concerns with DCR No. Stakeholder 1 Works communication of traffic impacts during construction to the public. WCC set up the council presentation. Ontario June 11, Meeting to discuss proposed design WCC continued to Provincial 2019 of the highway and median engage OPP in Police enforcement areas. Discussed relation to locations of proposed Median enforcement areas Enforcement Areas and concerns and traffic impacts. about collisions and emergency response. 407ETR May 28, Meeting to discuss project Following the 2019 schedule, limits of paving and meeting WCC design, toll gantry locations, traffic provided drawings and staging, and encroachment for 407ETR’s permits. review on the works covered in DCR No. 1. June 19, Email correspondence about WCC provided 2019 obtaining encroachment permit to traffic staging and work on 407ETR lands. 407ETR signage plan to indicated they had no comments on 407ETR. WCC the clearing and grubbing works but continued permit would like to review the traffic process. staging and signage plan. August Technical Workshop to review the WCC have 1, 2019 progress of the design at the forwarded exhibits 407ETR interchange and related (for works to be ramps. Discussions related to discussed further in staging, structures, roadway, subsequent DCRs)
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Summary of Consultation, WCC Response Agency/ Date including concerns with DCR No. Stakeholder 1 Works drainage, pavement, lighting and from the meeting to ITS. 407ETR and are awaiting comments. Toronto July 24, Meeting to discuss the project, WCC will keep Premium 2019 particularly work at Trafalgar Road TPO informed of Outlets (TPO) Underpass and traffic impacts construction and related to TPO. TPO’s primary staging schedule concerns relate to ramp closure and also posting impacts to deliveries, demolition traffic and closure timing and associated closure of the updates on our highway at Trafalgar Road, and Project website. general traffic impacts as a result of construction and road closures. Ministry of August Meeting to discuss SAR permits WCC provided Environment, 6, 2019 and approvals for works included design and Conservation under subsequent DCRs. environmental and Parks impacts as required for permitting. Ongoing discussions with MECP. All Utilities Ongoing Meetings ongoing with the following WCC continued to utilities to discuss relocation discuss and requirements: Halton Region, Peel engage with the Region, Alectra Utilities, Rogers, Regions and utility Bell, Enbridge Gas, Union Gas, companies Cogeco, Halton Hills Hydro, and regarding TransCanada. relocations. Governmental July 17, Meeting attended by WCC updated the Authority 2019 communication staff from local Traffic Disruption Communica- municipalities to discuss how WCC Notices Contact
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Summary of Consultation, WCC Response Agency/ Date including concerns with DCR No. Stakeholder 1 Works tions Meeting will be disseminating key project list. WCC notified No. 1 information. key communications stakeholders about the launch of the Project website. Six Nations of July 10, MTO met with Six Nations and MTO has the Grand 2019 provided a summary of the Project. scheduled the next River First They would like MTO to return in meeting to be on Nation September and provide additional September 18, details and the impacts/mitigation 2019. MTO has measures. Their key concerns offered to provide relate to archaeology, forested reports and areas, watercourses and SAR. information if requested. All Indigenous August A Notice of Study Commencement N/A Communities 15, 2019 and DCR No. 1 Submission and accompanying letter were sent to the three Indigenous communities listed (Section 3.2.7).
4 Detailed Description of DCR No. 1 Design and Construction 4.1 Clearing and Grubbing Areas requiring clearing and grubbing are based on the detail design and areas required for construction operations. WCC’s approach to clearing and grubbing is to remove the least amount of vegetation required for the work within the Project Lands. Sensitive environmental areas are present throughout the Project limits including Species at Risk (SAR) Regulated Habitat for Redside Dace (watercourse and the associated meander belt width and vegetated areas or agricultural lands within 30 metres of the meander belt), SAR American Eel watercourse, non-Species at Risk
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fisheries watercourses, SAR Bat habitat, Significant Wildlife Habitat (non-SAR bat maternity colonies, rare vegetation communities, Monarch and Terrestrial Crayfish), and other areas as discussed in the existing conditions in Section 5. Some of these locations require conditions and constraints related to clearing and grubbing operations, which are also discussed further in Section 5. No alternatives were considered for the clearing and grubbing work as the amount of removals required is dependent on the area required to accommodate the widened highway and construction access and staging areas within the Project limits. Clearing and grubbing across the entire Project limits is anticipated to begin in October 2019 and be completed in March 2020. Clearing and grubbing will be prioritized at the three structures covered under DCR No. 1, which includes the CN Rail Overhead Structure, the CP Rail Overhead Structure, and the Trafalgar Road Underpass Structure, so that bridge work can proceed in these areas. Priority will also be given to vegetation removal in areas where silt fence needs to be installed and also to areas where new fencing along the property line is to be installed. There are also some constraints to clearing and grubbing. This includes removal of vegetation within locations subject to permits and approvals currently being obtained, or environmental protection mitigation measures being developed. Generally, this includes permits for working near watercourses (Redside Dace and other sensitive watercourses), timing windows to protect wildlife, and areas where creek realignment design have not progressed enough to determine the amount of removals required. These are detailed further in Section 5. Clearing and grubbing in these areas will proceed only once permits and approvals have been obtained or according to the timing constraints and conditions dictated in the mitigation measures or the permits and approvals. Besides the areas being prioritized and the areas with timing constraints, all other areas will proceed as determined during construction. Grubbing will proceed following clearing in flat areas where erosion and sedimentation potential is less of a concern. Vegetation and roots will be mulched and placed back on the ground. Grubbing will not follow clearing on slopes and near watercourses so that the roots are in place to provide stability. Grubbing in these areas will be phased and completed when construction works are to occur. 4.2 CN Rail Overhead Structures The work at the CN Rail Overhead Structures includes replacing the original structure with a wider structure to accommodate eleven lanes of Highway 401 traffic. The proposed new structure is a three-span continuous slab-on-steel girders with integral abutments and two lines of piers. The total length of the structure is 39.20m. The total width of the structure in the westbound direction will be 28.15m and will carry five traffic lanes of Highway 401. The total width of the structure in the eastbound direction will be
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31.15m and will carry six traffic lanes of Highway 401. For the General Arrangement drawing for the structure, see Appendix B. The minimum vertical clearance provided by the new structure is approximately 7m and the design of the proposed new structure conforms to the CN Railway standards. The existing structure will be demolished just below the existing ground elevation. The existing drainage ditches alongside the railway will be maintained during construction and fully reinstated after construction is complete. Alternative designs were considered for the CN Rail structures, including a single span structure with RSS false abutments. However, the proposed three-span design was recommended as it requires a less complex roadway protection system and has less impact during construction on the adjacent railway, resulting in a more efficient schedule. Construction of the CN Rail structures will occur in three stages: Stage 0 over the winter in 2019/2020, Stage 1 in 2020, and Stage 2 in 2021. In stage 0, the existing merge lane on the eastbound Highway 401 will be reduced in length so that it is no longer crossing the structure; this condition will be maintained throughout construction. Access from Highway 401 will be limited to the southwest quadrant of the structure only. In this stage, pile driving operations will occur for the portions of the new structure north and south of the existing bridge. In stage 1, traffic on all through lanes will be maintained. Lanes and shoulders will be narrowed toward the median and construction of the new structure (including partial removal of the existing structure) will take place on the outside (i.e. north and south of the existing bridge). In stage 2, traffic will be redirected to the new structure (on the outside). The existing structure on the inside (i.e. the existing lanes on Highway 401) will be removed and the new structure will be constructed in its place. 4.3 CP Rail Overhead Structures The work at the CP Rail Overhead Structures at Highway 401 includes replacement of the original structure with a new widened structure that will carry fourteen traffic lanes in a Core-Collector system on Highway 401. The proposed new structure is a single-span slab-on-steel girders with integral abutments. The total width of the structure in the westbound direction will be 39.40m and will carry three traffic lanes of the Highway 401 Collectors system and three traffic lanes of the Highway 401 Express (Core) system over the CP Rail tracks. The total width of the structure in the eastbound direction will be 39.40m and will carry five traffic lanes of the Highway 401 Collectors system and three traffic lanes of the
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Highway 401 Express (Core) system over the CP Rail tracks. For the General Arrangement drawing for the structure, see Appendix B. The minimum vertical clearance provided is approximately 7m and the design of the proposed new structure conforms to the CP Rail standards. The existing structure will be demolished just below the existing ground elevation. The existing drainage ditches will be maintained during construction and will be reinstated, if required, after construction is complete. Alternatives were considered for the CP Rail structures, including a three-span continuous slab-on-steel girder design with integral abutments and two lines of piers. The proposed single-span structure was recommended as it effectively avoids a buried hydro line in conflict with the proposed foundations. Construction of the CP Rail structures will occur in three stages: Stage 0 over the winter in 2019/2020, Stage 1 in 2020, and Stage 2 in 2021. In stage 0, construction access will not be from the travel lanes on Highway 401. In this stage, pile driving operations will occur for the portions of the new structure north and south of the existing bridge. In stage 1, lanes and shoulders will be narrowed toward the median and construction of the new structure (including partial removal of the existing structures) will take place on the outside (i.e. north and south of the existing bridge). In stage 2, traffic will be redirected to the new structure (on the outside). The existing structure on the inside (i.e. the existing lanes on Highway 401) will be removed and the new structure will be constructed in its place. 4.4 Trafalgar Road Underpass Structure The work at the Trafalgar Road Underpass Structure at Highway 401 includes replacement of the original structure with a new structure to the west of the existing that will accommodate 4 lanes of traffic and two bikes lanes. The proposed new structure is a three-span continuous slab-on-steel box girders supported on integral abutments and two piers. The new structure will carry the northbound and southbound traffic lanes of Trafalgar Road over Highway 401. The total length of the structure will be 102.87m and the total width will be 42.70m. For the General Arrangement drawing for the structure, see Appendix B. During preliminary design, both the ‘Highway 401 Improvements from Trafalgar Road to Regional Road 25’ and the ‘Highway 401 Improvements from Credit River to Trafalgar Road’ TESRs included a commitment to explore municipal requests for construction of sidewalks and bike lanes on selected structures during detail design (URS 2013a, URS 2013b). The Halton Region Trafalgar Road Class EA - Steeles Avenue to North of 10 Side Road (MMM Group, 2016), completed in June 2016, recommended bike lanes on
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Trafalgar Road north of Steeles Avenue. To complement the recommendations of the Trafalgar Road Class EA, bike lanes (one in each direction) have been included at the curbside of the Trafalgar Road Underpass structure during detail design. This design promotes enhanced safety for cyclists and ties in with the intersection at Trafalgar Road and Steeles Avenue, which also includes placement of bike lanes at the curbside. This design was discussed at a meeting with Halton Region and Regional staff supported this design. The minimum vertical clearance provided by the new structure is approximately 5m and the design conforms to the MTO standards. The existing structure will be demolished just below the existing ground elevation. Bridge embossments for the abutments of the Trafalgar Road Structure will be developed in accordance with the “MTO – Bridge Embossment Criteria, Highway 401 Expansion, February 2018” (MTO, 2018) during later stages of detail design, and details regarding the embossments will be presented at the PIC and documented in a subsequent DCR. Alternatives were considered for the design of the bike lanes on the Trafalgar Road Structure. One design alternative included the bike lanes in the median of the road. The proposed design includes the bike lanes at the curbside, which was determined to be an improvement to safety for cyclists and also provided better continuity by tying in with Halton Region’s plans for bike lanes at Trafalgar Road and Steeles Avenue. The Trafalgar Road Underpass structure will be built offline so as not to interfere with the existing Trafalgar Road, starting in stage 0 (2019) and completed in stage 1 (2020). There will be traffic staging to accommodate access and protection of construction activities along Highway 401 and Trafalgar Road, as appropriate. Existing lanes will remain open except for temporary short duration, off-peak hour closures. 4.5 Construction Staging and Traffic Management Construction staging will be used to complete the proposed works, maintain traffic flow, and minimize traffic impacts throughout the Project limits during construction. In order to carry out the works outlined in Section 4, temporary off-peak hour (short-term) lane closures on Highway 401 along with nighttime (short-term) full closures of interchange ramps for the delivery of equipment and materials are anticipated. During peak hours the existing number of lanes on Highway 401 will be maintained. Traffic closures will be signed on-site with construction signing or Portable Variable Message Signs (i.e. electronic signing). WCC will provide updates to the public about traffic disruptions, detours and road closures on the Traffic page of the website (http://401expansion- mississauga-milton.ca/) and through an email blast sent to those who subscribe through the website.
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4.6 Utilities Coordination with utility service providers will be ongoing throughout the Project. WCC is also coordinating with Peel Region and Halton Region to address impacts to their water and wastewater infrastructure that cross the highway. For the works in DCR No. 1, key considerations included any potential utility conflicts near the CN Rail, CP Rail and Trafalgar Road Structures. Where utility impacts cannot be avoided, relocation of utilities will take place prior to construction. The utilities in the vicinity of these bridges belong to: • CN Rail signals at CN Rail Overhead Structure • Bell Canada infrastructure at Trafalgar Road • Alectra Utilities infrastructure at CP Rail • CP Rail signals at CP Rail Overhead Structure • Rogers infrastructure at CP Rail Overhead Structure • Bell 360 infrastructure at CP Rail Overhead Structure
5 Environmental Impacts, Mitigation and Commitments 5.1 Natural Environment
Terrestrial Ecosystems – Vegetation Existing Conditions During the previous EA studies from preliminary design in 2013, desktop and field investigations were undertaken to complete an inventory of existing natural environment conditions (URS 2013a, URS 2013b, AMEC 2011, AMEC 2012). Ecological investigations included Ecological Land Classification (ELC) System (Lee et al. 1998) vegetation communities identification, breeding bird surveys, plant and wildlife inventories, and visual searches for Significant Wildlife Habitat (SWH). Additional field investigations were undertaken in 2017 and 2018 to confirm previous findings and determine the presence of bat SAR (AECOM, 2018d, AECOM 2018e). These investigations included ELC identification, wildlife observations and monitoring, tree inventories, SWH and SAR habitat assessment, and bat acoustic surveys. The Project limits are largely represented by commercial, agricultural, industrial and residential properties. Natural areas throughout the Project limits are mostly fragmented and isolated from other natural areas by the existing highway, roads, agricultural lands or developed areas. Natural areas were the focus of ELC investigations completed in 2018 and include Deciduous Forest (FOD), Mineral Cultural Woodland (CUW1), Mineral Cultural Meadow (CUM1), Mineral Cultural Thicket (CUT1), Mineral Shallow Marsh (MAS2), and Mineral Meadow Marsh (MAM2) vegetation types. Specifically, 21 different
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ELC vegetation communities were represented across the Project limits and are shown in Appendix C. 211 vascular plants were also recorded within the vegetation communities. No provincially or federally designated SAR or provincially rare plants were identified. Sensitive environmental areas within the Project limits related to the vegetation removals are: • Redside Dace Regulated Habitat – Some areas within the Redside Dace Regulated Habitat require vegetation clearing and grubbing for the Project works. The Redside Dace watercourses are at the west end of the Project Limits. Clearing, grubbing and other works in Redside Dace Regulated Habitat will not commence until a 17 2 (c) ESA Permit for Redside Dace from the MECP is obtained. Clearing and grubbing will be completed between the in-water work timing window (July 1 and September 15) or as per conditions of the permit. (Further information in Section 5.1.4). • SAR American Eel watercourse – The Credit River supports American Eel, but species protection is limited to the watercourse and does not include any riparian areas. Therefore, no specific clearing and grubbing considerations for the Credit River vegetation are required from the perspective of American Eel, but this location is still subject to clearing and grubbing considerations related to riparian vegetation for non-SAR fish bearing watercourse (see below and Section 5.1.3). Vegetation removals in these areas can proceed above the High Water Mark (HWM). If vegetation removals below the HWM are required, an MTO Project Notification Form has to be completed in advance. • Non-SAR Fisheries – Some of the riparian areas of other sensitive watercourses that support direct or indirect non-SAR fisheries require clearing and grubbing. Vegetation removals in these areas can proceed above the High Water Mark (HWM). If vegetation removals below the HWM are required, an MTO Project Notification Form has to be completed in advance. (Further information in Section 5.1.3). • SAR Bat Habitat – Some of the deciduous forests (FOD) and cultural woodlands (CUW) support Bat Species at Risk. Vegetation removals are scheduled to occur outside the bats maternity roosting season (April 1 to September 30). (Further information in Section 5.1.4). • Significant Wildlife Habitat (Further information in Section 5.1.2) • Non-SAR Bat Maternity Colonies present throughout FOD communities in the corridor • Fresh – Moist Black Walnut Lowland Deciduous Forest adjacent to Sixteen Mile Creek and Hornby Creek (Highway 401 and Sixth Line), which is a provincially rare vegetation type. This community also supports Bat SAR habitat.
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• Terrestrial Crayfish habitat in one location east of Highway 401 and Winston Churchill Boulevard may be impacted. • Monarch habitat within some of the Cultural meadows throughout the corridor. • Edge Management Areas – Edges of woodlands and vegetation communities are important to help buffer exposed forest interiors from wind, sun, salt spray and to eliminate and/or reduce negative edge effects, such as changes to soil conditions, plant density, wildlife species, etc. For clearing and grubbing purposes, Edge Management Areas relate to: • Areas where a new edge of a vegetation community is being created due to the removals within the Project limits; or, • Locations where there are vegetation communities outside, but adjacent to the Project limits. These areas will not be directly impacted by the Project but will be delineated to minimize and prevent unnecessary damage if works are occurring nearby. • Valley Corridors – Sixteen Mile Creek Middle East Branch crossing east of Sixth Line, Sixteen Mile Creek East Branch crossing east of Trafalgar Road and the crossing of the Credit River. • Hornby Creek and Mullet Creek Watercourse Realignment Areas – Watercourse realignments in these areas will require some vegetation removals, which will be minimized to the extent feasible. The extent of the vegetation removals will be confirmed once the creek realignment design advances so that only the vegetation required to be removed is cleared and grubbed. • Mitigation Lands – A large area within the Project limits at the southeast quadrant of Highway 401 and Trafalgar contains Bat SAR Habitat and is a part of the Sixteen Mile Creek East Branch valley corridor east of Trafalgar Road. These Mitigation Lands are not within the grading limits for removals for the Project, however, will be used for mitigation, restoration and compensation activities. In addition to the Mitigation Lands, some of the above sensitive environmental areas will be designated as Environmental Protection Zones (EPZs) for this Project and will be areas where vegetation removal is avoided. There may be some treed natural areas (including individual trees) within the Project limits that can also be retained. Where removals will occur within the sensitive environmental areas, mitigation and compensation measures, where required, will be implemented. Where permits or approvals are associated or required for any of the above sensitive environmental areas, they will be obtained and clearing and grubbing will occur in accordance with the permits and approvals. Impacts The highway expansion footprint will impact vegetation located in the existing median, adjacent to the highway, and in the interchanges. Impacts include loss of vegetation cover, fragmentation and isolation of natural landscapes, loss of wildlife habitat, and
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creation of new vegetation edges being exposed to roadside environments. Table 3 below includes the anticipated approximate amount of each type of existing ELC community (as shown in Appendix C) being removed within the Project limits as a result of clearing and grubbing work. The exact amount will continue to be refined as required. Table 3: Anticipated ELC Impacted by Clearing and Grubbing
ELC Community Anticipated Approximate ELC Impacts (ha) Cultural Meadow (CUM) 5.7 Cultural Woodland (CUW) 1.2 Cultural Thicket (CUT) 1.9 Deciduous Forest (FOD) 2.7 Meadow Marsh (MAM) 0.4 Shallow Marsh (MAS) 0.6 Open Aquatic (OAO)* 0 Total Impacts Anticipated 12.5 *Open Aquatic (‘OAO’ above and in Appendix C) impacts are not included as the modifications to existing stormwater ponds will be captured in a subsequent DCR and the OAO ELC impacts will be included at that time. During clearing and grubbing, the use of heavy machinery could damage trees and shrub communities within adjacent natural features. Impacts include damage to trees and root systems, soil compaction, herbaceous vegetation trampling, and introduction of invasive species. The clearing and grubbing operations will also lead to increased erosion and sediment risks as vegetation removals, particularly grubbing, lead to the removal of natural features (i.e., root systems) that help hold soil in place and reduce erosion effects from wind. Further details on erosion and sediment controls can be found in Section 5.2. Mitigation measures to address erosion and sediment risks are detailed below. During construction of the three structures covered under DCR No. 1, there could be potential impacts (similar to those described above) to vegetation adjacent to the construction zone that may be impacted by construction machinery.
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Mullet Creek and Hornby Creek will be realigned to accommodate widening of the highway. The removal of vegetation in the vicinity of Mullet Creek and Hornby is to be determined based on the creek realignment but will be minimized to the extent feasible. Consultation with the City of Mississauga will be ongoing regarding tree removals at Mullet Creek. Mitigation Measures Measures to minimize the impacts to vegetation are: • Apply standard erosion and sediment control (ESC) measures consistent with Ontario Provincial Standards and Specifications (OPSS). These control measures will be implemented prior to work and be maintained during construction until disturbed areas have been effectively stabilized with permanent vegetation cover. (Refer to Section 5.2). • Vegetation removals will be minimized to the extent feasible. During the design phase, opportunities to minimize removals were explored in conjunction with the design and grading limits. During construction, the mitigation measures below will minimize the risk of on-site vegetation impacts. • Provide clear delineation of vegetation clearing zones and vegetation retention zones (e.g. EPZs, Mitigation Lands, treed natural areas) within the Project limits in both the design documents and in the field to minimize the risk of vegetation impacts outside of the Project limits and avoid incidental impacts as a result of temporary stockpiling, debris disposal and access. Equipment, materials and other construction activities will not be permitted in these zones. • Prior to heavy machinery working adjacent to EPZs, Mitigation Lands, treed natural areas or edge management areas, tree protection fence will be installed outside the drip-line to protect any vegetation that is to be retained and is in the vicinity of exposure to damage by machinery or other sources. • Installation of tree protection fencing will be in accordance with Ontario Provincial Standard Specification (OPSS) (OPSS 801.07.02) – Construction Specification for the Protection of Trees and Ontario Provincial Standard Drawing (OPSD) 220.010 (formerly OPSS 805). • Tree clearing will be completed in accordance with OPSS 201 – Construction Specification for Clearing, Close Cut Clearing, Grubbing and Removal of Surface and Piled Boulders. • Tree stumps will be cut flush to the ground and grubbing minimized to the extent possible to reduce soil disturbance, particularly in erosion prone areas (i.e. slopes and areas adjacent to watercourses). • Prune roots or adjacent trees that are to be retained but extend into the work limits and that may be damaged from construction. • Trees will be felled into the construction limits and where clearing and grubbing is permitted (i.e., away from areas to be retained).
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• Trees/shrubs that are felled will be mulched as soon as possible, especially during the breeding bird season in order to prevent birds from nesting. In flat areas, wood chips will be placed over the ground as cover to provide erosion control. Where feasible, wood chips will be incorporated into topsoil for future plantings. • Grubbing will not follow clearing on slopes and near watercourses so that the roots are in place to provide stability, where applicable. Grubbing in these areas will be completed when construction works are to occur in these locations. • WCC will undertake relocation / realignment of the watercourses (i.e. Hornby Creek and Mullet Creek) in a manner which minimizes the number of trees impacted. The extent of the vegetation removals will be confirmed once the creek realignment design advances. • Equipment and heavy machinery will be stored away from naturalized areas to minimize damage to natural areas outside of the work limits. • Where possible, earth movement will be restricted immediately adjacent to woodlands during periods of high dust generation. • Avoid the compaction of soils and root zones around trees within natural features. • Vegetation communities occurring outside but adjacent to the Lands (identified as Edge Management Areas) will be protected with tree protection fence. • Undertake vegetation clearing outside of the appropriate timing windows for breeding birds (April 1 to August 31) and bat maternity roosting (April 1 to September 30). • At the edge management areas, where possible, only clearing will occur with narrow ‘no-grubbing’ zones identified in order to stimulate suckering and edge creation and to help buffer exposed forest interiors from wind, sun and salt spray. • For those areas specified as requiring edge management, a sufficient amount of topsoil will be retained onsite for use in restoration, if possible. If retaining topsoil is not feasible, clean topsoil which is free of invasive species can be used to facilitate future planting activities. • In the event that adjacent vegetation communities or planted trees are accidently damaged during construction activities, WCC will implement contingency measures such as pruning tree limbs or roots that are accidently damaged using proper arboricultural techniques during grading and excavation. 5.1.1.1 Invasive Species Management Given the highly urbanized nature of the lands adjacent to the highway, a high proportion of vegetation in the Project limits are non-native and invasive plant species. In particular, Common Reed (Phragmites) is present along the highway corridor and watercourses throughout the Project limits. Invasive species mitigation measures with regards to the clearing and grubbing and overall construction are outlined below:
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• Equipment working in the invasive species locations identified above will be thoroughly cleaned prior to moving from the site. • Clearing and grubbing activities will adhere to the Clean Equipment Protocol for Industry (Halloran et.al, 2013). • Soil contaminated with invasive species will not be re-used for restoration activities. • If soil contaminated with invasive species is to be used for non-restoration activities, it will be treated before re-use and buried at appropriate depths, or removed from site. • Key locations along the corridor where phragmites is prominent will be mapped prior to the commencement of clearing and grubbing. • Phragmites will be buried a minimum of 0.7m below clean fill in accordance with industry practice, to prevent further spread. • Designated areas for equipment cleaning and invasive species stockpiles will be identified and demarcated in the field, if applicable. The designated areas will not be located in or near watercourses, environmental sensitive features or areas where invasive species are not currently present. • An Invasive Species Management Plan will be developed, as part of the Project, and will include the construction phase mitigation measures outlined above, as well as the invasive species management for the future landscape and restoration activities.
Terrestrial Ecosystems – Wildlife and Wildlife Habitat In addition to the background review done during preliminary design, additional field studies were conducted in 2017 and 2018 to identify potential wildlife and wildlife habitat within the Project limits (URS, 2013a, URS, 2013b, AECOM, 2018d, AECOM 2018e). Field investigations included amphibian breeding surveys, various bird surveys, Significant Wildlife Habitat (SWH) assessment, bat surveys and monitoring, and wildlife passage monitoring. The broader landscape of the Highway 401 corridor in the Project limits provides habitat for tolerant urban-adapted species (e.g., generalist bird and mammal species). The isolated wetland and woodland fragments found throughout the corridor provide habitat for birds and some mammals and functions as wildlife linkages. Most mammals that might occur in the Project limits are habitat generalists that would be common in urban and rural areas throughout southern Ontario. Generalist species include, but are not limited to, Eastern Grey Squirrel, Groundhog, Raccoon, Eastern Cottontail, White-tailed Deer, and Striped Skunk. Within the vicinity of the Project limits, the Ontario Breeding Birds Atlas has records of 145 bird species, of which 49 were observed during field investigations. Of the 45, only one, the Barn Swallow, was the only SAR observed. The Ontario Reptile and Amphibian Atlas has records of 28 reptiles and amphibians, and 3 of the 28 were observed incidentally during field investigations, none of which are SAR. The Ontario Butterfly
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Atlas has records of 89 butterflies and moths. Two of the 89 species were observed during field investigations, including the Monarch butterfly, which is a species of Special Concern. The SWH identified within the Project limits is shown in Table 4. Table 4: Summary of SWH Present in the Project limits
Significant Wildlife Habitat Description Seasonal Concentration Area of Bat Maternities Colony SWH is present in Forested Animals Communities throughout the Project lands. Rare Vegetation Communities Fresh – Moist Black Walnut Lowland Deciduous Forest (FOD7-4) is listed as a provincially rare vegetation type. Specialized Habitats for Wildlife No SWH of this type as identified in the SWH Criteria Schedule for Ecoregion 7E (MNRF, 2015) was present. Habitats of Species of Terrestrial Crayfish Habitat is present in the Conservation Concern Potential Laydown Area southwest of Highway 401 / Winston Churchill Boulevard. Monarch habitat (presence of common milkweed in suitable habitat types) is present throughout the Project lands. Animal Movement Corridors No SWH of this type as identified in the SWH Criteria Schedule for Ecoregion 7E (MNRF, 2015) was present. Habitat connectivity was also assessed along riparian corridors along the Credit River and Sixteen Mile Creek, where there is the greatest potential for maintaining wildlife linkages. Maintaining habitat connectivity across the landscape is important to the preservation of local wildlife during the construction and long-term operation of the highway. The existing Sixteen Mile Creek Middle East Branch crossing east of Sixth Line, Sixteen Mile Creek East Branch crossing east of Trafalgar Road and the crossing at the Credit River is recognized as an important regional linkage for wildlife in the area, in addition to providing connection between various ecological functions. Field investigations noted that there was evidence of Cliff Swallow, White-tailed Deer, Striped Skunk, Raccoon, and Coyote at the bridges and culverts of watercourse crossings throughout the Project limits. The Credit River in particularly facilitates wildlife crossing for larger mammals, particularly White-tailed Deer, beneath the existing Credit River bridge. The wildlife passage features will be discussed in future DCRs.
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Impacts The clearing and grubbing work results in the direct removal of wildlife habitat for generalist species as well as for bat SAR (see Section 5.1.4.2) and two species of Conservation Concern, the Terrestrial Crayfish and the Monarch Butterfly. The expansion of the highway itself will also further reduce wildlife habitat. Through detail design, removal of vegetation of more critical components of wildlife habitat (e.g., wildlife corridors, bat SAR habitat, rare vegetation communities) were minimized through adjustments to grading limits, where possible. Particularly at the Sixteen Mile Creek corridor, impacts have been minimized to the extent feasible to avoid critical components of wildlife habitat and minimize vegetation removals, particularly in edge habitat. Removal of vegetated areas and expansion of the highway will further reduce wildlife connectivity and movement between already fragmented natural areas. Highway 401 itself is a significant barrier to wildlife movement between natural areas north and south of the highway and expansion of the roadway will further exaggerate the barrier effect of the highway to wildlife mobility and also require longer wildlife crossings for animals to access lands on either side of the highway. The construction work for clearing and grubbing and work at the structures may also impact wildlife that enter the construction work site. The removal of vegetation and work at bridge structures can have impacts to breeding birds. These impacts and associated mitigation measures are discussed further in Section 5.1.2.1. Mitigation Measures • WCC will undertake woodland clearing outside of the timing window for the bat maternity roosting season (April 1 to September 30). • WCC will provide training to all on-site personnel to outline wildlife that may be present on-site as well as responsibilities to report wildlife and potential SAR to the WCC SAR Specialist. The training manual will include fact sheets for known SAR in the area which will also note procedures for reporting / handling any encounters with injured or deceased SAR. • Under no circumstances will any animal (i.e., bird, turtle, snake, mammal, butterfly, etc.) be knowingly harmed, harassed or otherwise disturbed. If an animal is encountered, it will be permitted to move away on its own. • If wildlife is observed or encountered in the work area and remains within the work area, construction activities will cease, if required, so as not to harm the animal. Appropriate personnel, such as the WCC Wildlife Biologist, will be notified. The WCC Biologist will determine the significance of the species, handle the wildlife accordingly, and if required notify the appropriate regulatory agency. Wildlife
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encounters should be handled according to the Environmental Awareness Training Manual and the Safe Handling Protocol. • The design for wildlife passages, fencing and escape ramps will be covered in a subsequent DCR. The purpose of installing wildlife fence is to exclude both large and small wildlife from the Highway 401 ROW and to re-direct animals toward the wildlife passages. 5.1.2.1 Migratory Birds The Migratory Birds Convention Act, 1994 (MBCA) provides federal protection to most migratory bird species. Destruction of migratory bird species during construction and other related activities is illegal unless a permit has been obtained. Any construction work can have impacts to ground nesting birds (e.g. killdeer). Vegetation and clearing can have impacts on nesting birds in trees and shrubs. In addition, some birds, particularly species like Barn Swallow (a SAR), commonly build their nests on the inner walls of culverts and on the undersides of bridges. Construction and demolition works associated with the CN Rail, CP Rail and Trafalgar Road structures may occur during the breeding bird timing window. To protect nesting migratory birds, the following mitigation measures will be undertaken: • Active nests will not be knowingly removed or disturbed in accordance with the MBCA (1994). • WCC will undertake vegetation clearing outside of the appropriate timing windows for breeding birds (April 1 to August 31). • If vegetation clearing cannot be scheduled outside of the breeding bird season, WCC’s Avian Specialist will be deployed to conduct a nest survey in the area to be cleared in ‘simple habitats’ (habitats that contain few likely nesting spots or a small community of migratory birds). • If the active nests of migratory birds are located, then the nest will be noted using handheld GPS and vegetation clearing will be delayed to allow for fledging of the young. • To avoid potential nest abandonment and/or predation, nests will be physically flagged if they are located close to an active construction zone and are a risk of accidental damage. • Complete inspections of all culverts and structures that are proposed for removal or alteration prior to construction to determine the presence of bird nests which may be protected under the MBCA (1994) (i.e., Cliff Swallow) or the ESA (2007) (i.e., Barn Swallow). • WCC will install bird nesting preventative measures (such as wire screens, netting, tarps, etc.) on the three structures included in DCR No. 1 prior to the active season (before April 1) and be maintained until August 31 of the same calendar year.
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Aquatic Ecosystems – Watercourses, Fish and Fish Habitat During preliminary design, the existing conditions of the Project limits was inventoried and described (URS, 2013a, URS, 2013b). The Project limits are located in two watersheds, the Sixteen Mile Creek watershed to the west and the Credit River watershed to the east. Most of the Project lands are located within the Sixteen Mile Creek watershed that drains in a north-south direction towards Lake Ontario with its headwaters in the Niagara Escarpment. The Credit River watershed, draining the east end of the Project lands, also drains towards Lake Ontario. The predominant watercourses within the Project lands include the tributaries of the West, Lower Middle, Middle, Middle East and East branches of the Sixteen Mile Creek, and the Credit River and associated tributaries. Given the urban, industrial/commercial and agricultural land uses in the Project limits, many watercourses have been straightened as a result of agricultural operations and urbanization. From Trafalgar Road to Regional Road 25, there are 20 crossing locations, of which nine represent direct fish habitat, two represent indirect fish habitat, and nine do not support fish habitat. The crossings include three major tributaries of Sixteen Mile Creek and 17 minor drainage systems (three systems are crossed more than once). From Credit River to Trafalgar Road, there are ten drainage feature crossings, of which six represent direct fish habitat, one represents indirect fish habitat and three do not support fish habitat. Due to the expansion of the highway, structures, such as bridges and culverts that carry watercourses will need to be replaced, rehabilitated, and/or widened and as a result some watercourses will have to be realigned. In some cases, minor realignments and channel modifications will be required as a result of encroachment from grading and bridge or culvert works. The two major watercourse realignments are of Mullet Creek and Hornby Creek, for which fluvial geomorphic assessments have been completed (AECOM 2018b; AECOM 2018c). These works will be covered in future DCRs. Updated fish community records and field investigations were undertaken in 2017/18 to determine the fish species in the watercourses throughout the Project limits (AECOM, 2018k). Through field investigations and correspondence with MNRF, it was determined that two aquatic SAR, Redside Dace and American Eel, are present. For more information on aquatic SAR, see Section 5.1.4.1. Impacts With regards to the works covered in DCR No. 1, only clearing and grubbing will have impacts to watercourses, fish and fish habitat. The work at the structures will not impact any of the watercourses present in the Project limits. Although clearing and grubbing is taking place adjacent to watercourses, no in-water work is proposed. All vegetation removals are anticipated to occur above the HWM, therefore no approvals are needed.
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However, potential impacts to watercourses, as a result of the clearing and grubbing works, may include the entry of deleterious substances into the watercourse, leading to direct disturbance to fish species, fish habitat and the water quality, disturbance of bank stability, and increased erosion and sediment risks. Erosion and sediment risks are increased with the removal of vegetation, especially the roots systems, which serve to hold soil in place. It is best to control sediment at its source rather than to reactively deal with sedimentation into areas that are more difficult to resolve and/or restore. General best management practices when working around a watercourse will be employed to minimize and/or avoid adverse impacts to the watercourses. Mitigation Measures • WCC will use a staged approach to clearing and grubbing near watercourses and drainage features. Clearing will occur when the appropriate permitting or approval is in place (if required) and according to vegetation timing constraints. Grubbing adjacent to watercourses will not occur immediately following clearing, where applicable, so that roots remain in the ground for stability and as a natural ESC measure. Grubbing will only occur when it is required to support or facilitate the construction works. If vegetation removals below the HWM for non-SAR watercourses are required, an MTO Project Notification Form has to be completed in advance and work is to occur during the appropriate fisheries in-water work timing window: • For warmwater watercourses, the permitted in-water work window is July 1 to March 31, which falls within this Project’s proposed schedule for clearing • For coolwater watercourses, the permitted in-water work window is June 15 to September 30 • For the coolwater (Atlantic Salmon) watercourse, the permitted in-water work window is July 1 to August 15 • For clearing and grubbing within the Redside Dace Regulated Habitat (Occupied and Contributing) watercourses, the permitted in-water work window is July 1 to September 15. Clearing and Grubbing within Redside Dace Regulated Habitat will not take place until required permits and approvals are received. Clearing and grubbing will be completed between July 1 and September 15 or as per conditions of the permit. Nest sweeps should be conducted prior to vegetation removals where removals are required outside of the breeding bird window. • All materials and equipment used will be operated and stored in such a manner that prevents any deleterious substance from entering the water. • WCC will utilize construction staging that avoids or minimizes spills and leaks into the watercourse. • WCC will minimize the disturbance or removal of riparian vegetation, to the extent feasible. • Stockpiled materials will be stored and stabilized away from the water.
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• Opportunities for enhancing shading of the watercourse by planting native species in areas of overhanging / riparian vegetation loss will be examined during subsequent stages of detail design. • ESC measures consistent with Ontario Provincial Standards and Specifications (OPSS) which will be implemented prior to work and be maintained during construction until disturbed areas have been effectively stabilized with permanent vegetation cover. (Refer to Section 5.2) • WCC will monitor erosion and sediment control systems for effectiveness, repairing deficient controls in a timely manner using an adaptive management approach when deemed appropriate. • All disturbed areas of the work site will be stabilized and revegetated promptly, and/or treated with appropriate erosion protection materials. In riparian and aquatic habitats, all temporarily disturbed areas will be reinstated to original condition, upon completion of works.
Species at Risk During preliminary design, Species at Risk (SAR) screening was conducted to determine which SAR had the potential to occur within the Project limits (URS 2013a, URS 2013b). Additional reviews and correspondence with MNRF were carried out in 2017. Field investigations, including leaf-off and leaf-on surveys, acoustic monitoring and an exit survey, were also conducted to determine the presence of bat SAR. Based on these SAR reviews and investigations, four SAR were determined to be in the Project limits (species of special concern were removed as they are not afforded formal protection under provincial or federal legislation): Redside Dace, American Eel, Little Brown Myotis, and Eastern Small-footed Myotis. Table 5 provides a summary of the four SAR. The Endangered Species Act (ESA) provides provincial protection and the Species at Risk Act (SARA) provides federal protection. Table 5: SAR Determined to be Present in the Project Limits
SAR Name Legal Protection Permits / Timing Constraints Provincial (ESA) Federal (SARA) Redside Dace Listed as Listed as 17 2 (c) ESA Permit for (Clinostomus Endangered Endangered Redside Dace to be elongates) obtained Species and Species protection Regulated Habitat under the SARA In-water work timing protection under window for Redside Dace the ESA Regulated Habitat is
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SAR Name Legal Protection Permits / Timing Constraints Provincial (ESA) Federal (SARA) permitted only from July 1 to September 15. American Eel Listed as No status or Letter of Advice from (Anguilla Endangered schedule under MECP to be obtained rostrate) the SARA
Species and In-water work timing general habitat window for Credit River is protection under permitted only from July 1 the ESA. to August 15, but this is Protection is limited to the watercourse limited to the and not riparian areas. watercourse and does not include any riparian areas. Little Brown Listed as Listed as Letter of Advice from Myotis (Myotis Endangered Endangered MNRF obtained (MNRF lucifugus) File No. AU-LOA-11-19) Species and Species only Clearing window for bats general habitat receives protection permits vegetation protection under under the SARA if clearing from October 1 to the ESA on federal land March 31 Eastern Small- Listed as No status or Letter of Advice from footed Myotis Endangered schedule under MNRF obtained (MNRF (Myotis leibii) the SARA File No. AU-LOA-11-19) Species and Clearing window for bats general habitat permits vegetation protection under clearing from October 1 to the ESA March 31
5.1.4.1 Aquatic SAR The two aquatic SAR found within the study area are Redside Dace and American Eel. The presence of Redside Dace habitat is confirmed at four watercourse crossings (unnamed tributaries of the West Branch of Sixteen Mile Creek) on the west end of the Project limits by Regional Road 25. Two of the watercourse crossings are confirmed
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Redside Dace Occupied Habitat and two of the watercourse crossings are considered Redside Dace Contributing Habitat. Clearing and grubbing works are taking place in the Regulated Habitat (watercourse and the associated meander belt width and vegetated areas or agricultural lands within 30 metres of the meander belt for Occupied and the HWM for Contributing) of the Redside Dace watercourses, which are vital to the lifecycle of the species and are thus subject to a 17 2 (c) ESA Permit for this species. No work can be completed in the watercourse or the Regulated Habitat until the permit has been obtained. One of the Redside Dace contributing watercourses is west of the CN Rail Overhead Structure. Access and staging for the CN Rail Overhead Structure works will be outside of the Regulated Habitat limits, therefore there will be no impacts. American Eel has been confirmed to be present in the main branch of the Credit River on the east end of the Project limits. Species protection is limited to the watercourse and does not include any riparian areas. American Eel is not anticipated to be directly impacted by the works covered in DCR No. 1 as no work will be taking place in the Credit River or on the Credit River Bridge; thus, the Letter of Advice is not required in advance of clearing and grubbing operations. However, this location is still subject to clearing and grubbing considerations from the perspective of non-SAR fish bearing watercourse (see Section 5.1.3). While no in-water work is anticipated in these watercourses, potential impacts to Redside Dace / American Eel or its habitat, as a result of the clearing and grubbing works, may include the entry of deleterious substances into the watercourse, leading to direct disturbance to the species and watercourse, disturbance of bank stability, and increased erosion and sediment risks. General best management practices when working around a watercourse will be employed to minimize and/or avoid adverse impacts to these aquatic SAR. Mitigation Measures Measures to minimize the impacts to aquatic SAR are: • For wildlife encounters with SAR refer to Section 5.1.2 Mitigation Measures. • Aquatic Ecosystem Mitigation Measures from Section 5.1.3 apply. • Clearing and Grubbing within Redside Dace Regulated Habitat will not take place until required permits and approvals are received. Clearing and grubbing will be completed between the in-water work timing window (July 1 and September 15) or as per conditions of the permit. • ESC BMPs for Redside Dace Regulated Habitat will be consistent with Guidance for Development Activities in Redside Dace Protected Habitat (MNRF, 2016). • While completing project activities within Redside Dace Regulated Habitat, daily monitoring will occur. Additional monitoring details are included in Section 7.2.
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• Environmental training will be conducted so all staff are aware of the importance of maintaining proper ESCs for the purpose of protecting aquatic SAR. • All construction equipment and machinery will be operated within the construction zone and will not create any additional disturbance to the existing bed and banks of the watercourses within the Redside Dace Regulated Habitat. • Machinery will be refuelled, washed and serviced a minimum of 30m away from the top of bank to prevent discharge of deleterious substances into occupied and contributing watercourses. • No vehicles or machinery may enter the Credit River at any time. • Site restoration of Redside Dace habitat will be undertaken following the completion of the proposed works in accordance with permits and approvals and will be described in subsequent DCRs. 5.1.4.2 Terrestrial SAR Bat SAR habitat for Little Brown Myotis and Eastern Small-footed Myotis has been confirmed within some of the deciduous forests (FOD) and cultural woodlands (CUW) within the Project limits. Locations include: - A small mineral CUW near the southeast quadrant of Highway 401 and CN Rail Overhead structure; - Fresh – Moist Black Walnut Lowland FOD community at the northeast quadrant of Highway 401 and 6th Line (also in the area associated with the future Hornby Creek watercourse realignment); - Mineral CUW and Moist Lowland FOD locations along Highway 401 between Trafalgar Road and 8th line; and, - One anthropogenic structure (a chicken coop) located in the southwest quadrant of Highway 401 and Sixth line was also confirmed as Bat SAR habitat and will require removal. Clearing and grubbing will result in the direct removal of some of this bat SAR habitat. A Letter of Advice was obtained from MNRF (MNRF File No. AU-LOA-11-19) that allows for the vegetation removal of bat SAR habitat. The chicken coop (southwest quadrant of Highway 401 and Sixth Line) that was found to be habitat for one Eastern Small-footed Myotis will be demolished in advance of clearing and grubbing within the appropriate timing window. Mitigation Measures Measures to minimize the impacts to terrestrial SAR are: • For wildlife encounters with SAR refer to Section 5.1.2 Mitigation Measures.
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• Vegetation removals will be minimized to the extent feasible. During the design phase, opportunities to minimize removals were explored in conjunction with the design and grading limits. During construction, the mitigation measures below will minimize the risk of on-site vegetation impacts. • Tree protection measures as described in Section 5.1.1 also apply to bat habitat. • Removals of Bat SAR habitat will be done in accordance with the conditions of the Bat SAR Letter of Advice obtained from MNRF (MNRF File No. AU-LOA-11-19). • WCC will undertake SAR Bat vegetation clearing and removal of the anthropogenic structure outside of the timing window for the bats maternity roosting season (April 1 to September 30). • Any construction activities within 30m of known cavity trees or the chicken coop will be restricted to daylight hours when possible.
Designated Natural Areas During preliminary design, the Project limits were reviewed for provincially or federally significant natural heritage features, including Provincially Significant Wetlands (PSW), Areas of Natural or Scientific Interest (ANSI), Environmentally Significant Areas, significant valleylands, significant woodlands, provincial parks, or conservation areas. The Niagara Escarpment Biosphere Reserve, designated by the United Nations Education, Scientific and Cultural Organization (UNESCO), is located in the broader region, approximately 2km west of the Project limits. One environmentally sensitive area, the Meadowvale Station Woods Area of Natural and Scientific Interest (ANSI) is present immediately east of the construction limits along the west side of 2 Line West and is linked with the Credit River floodplain south of Highway 401. As there are no Designated Natural Areas within the Project limits, there are no impacts and mitigation measures for these features.
Landscaping and Ecological Restoration Landscaping and ecological restoration works is not covered under DCR No. 1 but will be included in future DCRs, to address enhancement, restoration and/or compensation related to the impacts described in Sections 5.1.1 to 5.1.4. Mitigation Measures • A Landscaping and Ecological Restoration Plan will be developed as part of this Project and will identify areas which will receive enhancement and/or restoration as well as areas where vegetation will be protected. The Plan will include details regarding Valley Restoration, Edge Management Areas, Bat SAR habitat restoration and compensation, Enhancement and Restoration of Significant Wildlife Habitat (e.g. Monarch, Terrestrial Crayfish, and Black Walnut, where feasible), Fish Habitat Enhancement and Riparian Habitat Restoration (including aquatic SAR areas), and Stormwater Management (SWM) Pond Naturalization.
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Groundwater During preliminary design, groundwater studies were completed (URS 2013a, URS 2013b) that determined the Project limits are located within three physiographic regions: the Iroquois Plain, the Peel Plain, and the South Slope. The Project limits consist predominantly of deposits of glacial, glaciofluvial, and glaciolacustrine origin, namely the Halton Till which is composed of silt to silty clay matrix with a minor amount of sand. The shallow groundwater within the study area is influenced by surface topography, likely flowing into the Sixteen Mile Creek watershed system and the Credit River to the east. A Door-to-Door Water Well Survey (Water Well Survey) was carried out in 2017 to determine the status, location and construction details of existing water supply wells within 300 m of the proposed highway right of way on either side of Highway 401 (AECOM, 2018g). This provides an inventory of existing wells, which will be important during groundwater monitoring to assess if groundwater and wells are being impacted as part of the Project. During construction projects, particularly for activities requiring excavation or digging into the ground, there is the potential that groundwater is encountered and needs to be dewatered from the construction site. Impacts Large volumes of groundwater taking can have significant impacts to groundwater quantity, thus an Environmental Activity and Sector Registry (EASR) or Permit To Take Water (PTTW) are required before dewatering can occur. A PTTW will be obtained from the MECP if the amount of water taken exceeds 400,000 L/day, or the water taking will be registered on the EASR as a “prescribed activity” if the amount of water taken exceeds 50 m3/day and is below 400 m3/day. It is anticipated that an EASR may be required for work at the CN Rail Structure, which is in an area of high groundwater susceptibility. It is anticipated that a PTTW may be required for work at the Trafalgar Road Underpass Structure, which is in an area of low groundwater susceptibility. As the daily groundwater taking is expected to be minimal (<50m3/day) at the CP Rail Structure, which is in an area of low-moderate groundwater susceptibility, neither an EASR or PTTW is required. Clearing and grubbing work will not have a direct impact to groundwater and proper construction best management practices will be employed to minimize the potential for contaminants to leach into the groundwater.
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Mitigation Measures • WCC will limit the depth of excavation and minimize the need for dewatering during construction, particularly in areas designated as having a high potential for groundwater impact (i.e. creeks and tributaries). • All materials and equipment used will be operated and stored in such a manner that prevents any deleterious substances from entering the water. • WCC will utilize construction staging that avoids or minimizes spills and leaks into the watercourse. • WCC will complete and obtain an EASR registration or Permit to take Water (PTTW) for all works undertaken with the Project Limits, as required. • Dewatering activities will be conducted in accordance with all applicable procedures provided in the Ontario’s Water Taking Regulation (O. Reg. 387/04 made under the Ontario Water Resource Act, as amended by O. Reg. 64/16, March 29, 2016), the new EASR regulation (O. Reg. 63/16, March 29, 2016), OPSS 518 Control of Water from Dewatering Operations, and the specific requirements outlined under the EASR registration and/or PTTW. • Private wells from the Door-to-Door Well Survey will be monitored during construction and if impacts are noted more frequent monitoring of the wells and possible further assessment of the impacts will be required. • Water wells or groundwater monitoring wells encountered or installed during future highway construction activities, if no longer in use, will be properly decommissioned as per the Ontario Wells Regulation (R.R.O. 1990, Reg. 903). • WCC will minimize groundwater recharge impacts by directing the surface runoff to roadside ditches and improve ditch conditions during construction. • Silt laden discharge water from dewatering activities will be directed away from the watercourse in such a way as to minimize sedimentation. • Application of appropriate energy dissipation and settling/filtration measures during temporary dewatering of the near or instream construction zones. • A Groundwater Monitoring Program will be implemented during construction to monitor the dewatering discharge at any EASR or PTTW locations and to monitor private water wells within 500 m of EASR or PTTW locations. • Investigate and promptly address any complaints of interference with surrounding lands, natural features, properties, or property owners related to construction activities such as well installation or dewatering activities, to the satisfaction of the affected land owner or agency. • Follow best management practices for road de-icing applications, as applicable for WCC’s construction work zone.
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Surface Water For details about existing watercourses as they relate to fish and fish habitat, see Section 5.1.3. Certain watercourses only convey drainage across the Project limits. Within the Project Limits there are four existing stormwater management (SWM) ponds that collect surface runoff from Highway 401 and 407ETR. Three of the SWM Ponds are online (located on a stream) and one is offline (separated from any other waterbody, no inlets or outlets). A Surface Water Monitoring Program was conducted by MTO in 2017 and 2018 to collect baseline data on flow and water quality at four watercourses as a base for future surface water monitoring. Impacts Construction impacts can result in adverse impacts to watercourses due to increased siltation, changes in stream channel structure and water clarity, increase in water temperatures as a result in the removal of riparian vegetation, and roadside drainage could increase input of pollutants. Stormwater management (SWM) strategies can minimize adverse impacts to surface water by managing surface water runoff to meet water quality and quantity control criteria set by Conservation Halton, Credit Valley Conservation, MTO, MECP, MNRF, and DFO. The long-term water quality and quantity requirements will be achieved through retrofitting the existing ponds and construction the proposed new wet ponds, detention ditch system, infiltration galleries, vegetated embankments, and underground storage (if required) across the Project. The existing and proposed SWM facilities are not included in DCR 1 works. Mitigation Measures • General Aquatic Ecosystem Mitigation Measures from Section 5.1.3 apply. • Erosion and sediment control measures will be employed during construction to manage surface water runoff and construction drainage. See Section 5.2 for additional ESC details. • WCC will undertake a Surface Water Monitoring Program during construction to identify whether there are any changes in surface water quality due to construction works. See Section 7.2 for additional details. • Adaptive management measures are to be implemented if necessary, during construction.
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5.2 Erosion and Sediment Control (ESC) Construction can increase the risk of erosion and sedimentation in an area, including such activities as removal of vegetation, soil management, working in and around watercourses, and the installation of temporary access roads. As such, erosion and sediment controls (ESC), which act to reduce or prevent the movement of sediment from a site during construction through the implementation of structures and/or land management techniques, are vital to construction projects to manage erosion and sediment risks. It is best to control sediment at its source rather than to reactively deal with sedimentation into areas that are more difficult to resolve and/or restore Impacts Clearing and grubbing will increase the Project’s erosion and sediment risks by removing natural vegetation that holds soil in place. This is particularly important for vegetation that is being removed adjacent to watercourses, as there are more risks of sediment spilling into the water, resulting in impacts to fish, fish habitat, water quality, and channel morphology. The proposed bridge works also have sediment and erosion risks on the bridge embankments, where soils have to be brought into the site. If soils are not secured, the soils can spill onto the highway or rail tracks, resulting in significant impacts to transportation operations. Mitigation Measures • WCC will retain natural vegetation cover where possible, and minimize root grubbing where possible, to provide natural erosion control cover. • Grubbing will occur in flat areas along with clearing. Vegetation removed in these areas will be mulched and the wood chips placed on the ground for cover to help reduce erosion. • Grubbing will not occur after clearing on slopes and adjacent to watercourses so that roots remain in place to provide stability and reduce the risk of erosion and sedimentation. Grubbing will occur in these areas when required for construction work. • WCC will implement the ESC measures prior to the start of construction which includes the clearing and grubbing or disturbance of soil and will be maintained during construction until the disturbed areas have been effectively stabilized. • WCC will minimize the disturbance or removal of riparian vegetation and promptly stabilize and re-vegetated all disturbed areas of the work site, and/or treat the site with appropriate erosion protection materials. In riparian and aquatic habitats, all temporarily disturbed areas will be reinstated to original condition, upon completion of works. • ESC measures will be installed per design, maintained and monitored frequently to confirm they are working effectively and according to OPSS 805 (Construction
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Specification for Temporary Erosion and Sediment Control Measures). The ESC measures will be inspected and cleaned out when accumulated sediment reaches half the design height. • Filter socks, rock-check dams, fiber roll flow check dams (or equivalent flow checks) will be placed as necessary at appropriate intervals in the ditches down gradient from areas of soil disturbance to trap suspended sediments and reduce the erosive force of runoff. • Stockpiled materials will be stored away from water and any sensitive natural features including species at risk mitigation lands. Sediment control measures such as silt fence will be around the base of the stockpile to prevent mobilization of the stockpile. • In the event of a sediment spill, WCC will take reasonable action to stop the spread of spilled materials by blocking catch basins, digging trenches, creating dykes, and spreading an absorbent. 5.3 Drainage and Hydrology With regards to the works covered under DCR No. 1, the following drainage features are impacted: • There are no drainage features on the structures for CN Rail or CP Rail. • There are existing drainage features in the vicinity of the existing Trafalgar Road Underpass bridge and Highway 401 which would be impacted during construction. • The impacted drainage features at Trafalgar Road Underpass will be relocated/modified to maintain the drainage from the existing structure and accommodate the widened structure. Erosion and sediment control measures will be employed during construction to manage surface water runoff and construction drainage. See Section 5.2 for additional ESC details. • Proper drainage of the temporary construction conditions will also be provided during all stages of construction. 5.4 Excess Earth Excavation and clearing activities for construction projects often result in excess earth on site that needs to be properly managed and controlled. Suitable soils will be reused within the Project limits as much as possible. Excavated earth that is not utilized immediately will be temporarily stockpiled. Some excess soils may be contaminated. This is discussed further in Section 5.5.3. Impacts The clearing and grubbing activities will result in the stripping of topsoil; suitable soils will be reused within the Project limits (e.g., landscaping), where possible to reduce the amount of excess earth. Strategies to minimize excess earth generation included
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August 2019 minimizing excavation and fill requirements, optimizing balance of cut and fills, and utilizing slope flattening or berm creation as part of design. While the amount of excess soil is not anticipated to be high, some stockpiling will be required on site and some excess earth management off-site may be required. Mitigation Measures • Suitable excavated soils will be reused within the Project limits as much as possible. • Stockpiles of contaminated or potentially contaminated soil will be contained to prevent the infiltration of precipitation and/or generation of runoff. • Limit any imported soil to that which does not exceed the Canadian Council of Ministers of the Environment Canadian Environmental Quality Guidelines. Further, in accordance with the MECP Best Management Practices, imported fill will be characterized such that it can be confirmed that no new contaminants will be introduced to the site. • Offsite management and disposal of waste and excess materials generated during construction will be conducted in accordance with O.Reg. 347 and OPSS 180. • Stockpiled materials will be stored and stabilized at least 30 m away from any watercourse unless appropriate engineered control works are in place. • Stockpiled material will be stored a minimum distance of 30 m away from the Credit River and outside of the floodplain in a manner that prevents sediment or deleterious substances from entering the watercourse. • Materials will not be stockpiled within 30 m of Redside Dace Regulated Habitat for occupied watercourses, and up to the high-water mark for contributing watercourses. • Earth will not be located within the boundaries of a sensitive environmental area as defined in Ont. Reg. 153/04 (as amended). • Earth will not be placed in locations where there is direct drainage to that location. • Stockpiles will not be placed on property or within areas of known or suspected contamination. • Measures to prevent the mobilization of stockpiles will be employed using silt fences and other erosion control methods as appropriate. • Necessary steps will be taken to minimize dust emissions, and limit infiltration of precipitation and discharge of soil particles through drainage and runoff. • Stockpiles will be monitored to confirm that the stockpiles remain intact and that there are no environmental adverse effects, erosion issues or sedimentation concerns. • Where environmental or other concerns are identified, necessary corrective action will be taken in a timely manner.
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5.5 Socio-Economic
Noise and Vibration Previous Studies Noise impacts associated with transportation projects are assessed based on the MTO Environmental Guide for Noise (October 2006). In general, the areas adjacent to Highway 401 consist mainly of commercial, industrial, and rural areas with scattered residences. However, there are concentrations of residential development to the southwest of the James Snow Parkway interchange, and east of the Credit River. Noise investigations were undertaken during preliminary design to compare potential noise impacts and possible noise mitigation for the “Future No Build” (2031) (i.e., the highway is not built) and “Future Build” (i.e., the highway is built) (2031) scenarios (URS, 2011b, URS, 2013a, URS, 2013b, URS, 2013c). An additional noise assessment was completed in 2018 to update the preliminary design noise assessment (AECOM, 2018f). It was determined that the operational noise levels due to the Project will have a minor to negligible perceived noise increase at most noise receptors (noise sensitive locations where human activity may be adversely impacted by the project). Some receptors in Noise Sensitive Areas (NSAs) exceeded the MTO’s criteria for requiring noise mitigation investigation (i.e. greater than 65dBA), however noise mitigation is not economically (i.e. high cost per benefit), administratively (i.e. not able to be located on public right of way) and technically (i.e. poor constructability due to design, safety, topography etc.) feasible to address traffic noise impacts from the Project. Therefore, no operational noise mitigation measures were recommended as a result of these previous studies. However, potential impacts due to noise during construction were identified to require mitigation and will be addressed by WCC. A baseline vibration assessment was also undertaken at the Thermo Fisher Scientific facility at the northwest quadrant of Highway 401 / Mississauga Road interchange (AECOM, 2018h, AECOM 2018i) to review potential vibration impacts on the vibration sensitive equipment inside the facility. Potential Impacts – Noise Construction will be a temporary source of noise. Most of the noise is likely to occur during the operation of equipment, which will vary temporally and spatially as construction progresses. For the works in DCR No. 1, construction noise impacts to Noise Sensitive Receptors (NSAs) are anticipated to be minor or negligible due to the localized nature of works at the early structures. NSAs in the vicinity of the early works structures include a neighbourhood of single family residences south of Highway 401 and CN Rail, individual single-family residences north and south of Highway 401 and Trafalgar Road, a neighbourhood of single family and multi-family residences south of CP Rail and Highway 401, and a neighbourhood of single family residences (north of a
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August 2019 large commercial structure) north CP Rail and Highway 401. Potential construction noise impacts for DCR No. 1 works include: • Minor noise impacts due to equipment used for clearing, grubbing, earthworks, general bridge construction, and for placement of fencing and temporary concrete barriers for protection of work areas. • Pile driving activities for CN Rail, CP Rail and Trafalgar Road structures will be the greatest source of noise impacts, however, the piling will be localized to bridge piers, and abutment locations and will be temporary. • Demolition of the existing bridge structures. • For the works outlined in DCR No. 1 there will be some construction activities occurring at night and on weekends in order to minimize impacts to traffic. These activities are limited to demolition and delivery of equipment and materials at Trafalgar Road Underpass structure and traffic control setup and delivery or equipment and materials at both the CN and CP Rail structures and will only be for short durations. Works on provincial highways are not subject to the municipal Noise By-law provisions for construction activities within provincial highway rights-of-way. Potential Impacts – Vibration Construction activities are a source of vibration and can be a concern for building damage and human comfort. Depending on the activity, equipment in use, and distance between a vibration source and receptor, differing amounts of vibration can be experienced. For this Project, the most significant source of vibration will be pile driving. Other equipment such as dozers, pavement breakers, rollers, compactors, etc. tend to generate lower levels of vibration. For the works in DCR No. 1, the main source of potential vibration will be due to the pile driving at CN Rail, CP Rail and Trafalgar Road. Thermo Fisher Scientific, a vibration sensitive receptor near Highway 401 and Mississauga Road, is not anticipated to be impacted by DCR No. 1 works. The equipment to be used for fence installation and vegetation clearing and grubbing within 80m of the facility is not anticipated to generate vibration levels above specific thresholds, and pile driving associated with DCR No. 1 bridge construction is not occurring near the facility. Mitigation Measures Although works on provincial highways are not subject to the municipal Noise By-law provisions for construction activities, general best management practices to limit construction noise will be employed. Measures to minimize the impacts of construction noise and vibration are:
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• To the extent possible, limit noisy construction activities to daytime hours. • In noise sensitive areas, pile driving will be restricted to daytime hours. • No blasting will be undertaken for the construction of the Highway 401 Expansion. • Equipment will be maintained in good operating condition and comply with MECP noise emission standards (Noise Pollution Control (NPC) – 115 and NPC-118 and Ontario Model Municipal Noise Control By-Law). • WCC will keep idling of construction equipment to a minimum. • WCC will maximize the distance between the construction staging areas and nearby receptors to the greatest extent possible. • Maintain construction haul roads to prevent potholes and ruts to avoid the loud noise caused by construction vehicles travelling over uneven road surfaces. • If complaints regarding construction noise arise from construction, they will be investigated according to the provisions of MTO Environmental Guide for Noise (October 2006). Any initial noise complaint will trigger verification that the general noise control measures agreed to are in effect. • Heavily loaded trucks will be routed away from residential streets, where possible. • The use of equipment that generate high levels of vibration will be minimized, where feasible. • Equipment used within 80m of Thermo Fisher Scientific receptor cannot exceed a vibration velocity 400 micro-m/sec (PPV). If required, equipment will be tested before commencing construction activity in the vicinity of Thermo Fisher Scientific. WCC will also conduct vibration monitoring during construction works within 80m of the property to verify that the vibration velocity is not exceeded.
Air Quality Previous Studies Air Quality investigations were undertaken during preliminary design to compare the “Future No Build” (2031) and “Future Build” (2031) Scenarios (Novus Environmental, 2012, URS, 2013a, URS, 2013b, RWDI, 2011). Further air dispersion modelling was undertaken in 2018 for the “Future No-Build” (2041) and “Future Build” (2041) Scenarios (AECOM, 2018j). The assessments examined criteria air contaminants (nitrogen dioxide, carbon monoxide and particulate matter) and key volatile organic compounds (benzene, 1, 3-Butadiene, formaldehyde, acetaldehyde and acrolein) at sensitive receptors. The results of the 2013 analysis indicated that, for most contaminants, the predicted maximum emissions at sensitive receptors near Highway 401 are within applicable MECP Ambient Air Quality Criteria and Canadian Ambient Air Quality Standards thresholds. Where there were exceedances, they were not significant or persistent. As well, the results of the 2018 analysis specifically identified that cumulative concentrations of pollutants are very similar when comparing the “Future No-Build” and
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“Future Build” scenarios, and the only pollutant to exceed standards, was due to the background concentration and not due to the Project. Therefore, regional air quality impacts related to the Project are not significant, and no mitigation measures for the Project were recommended to address operational air quality impacts. It was recommended that opportunities for tree planting be examined in detail design to reduce roadway particulate matter at nearby receptors. Both the 2013 and 2018 Assessments identified the potential for construction air quality impacts. Potential Impacts Air quality during construction of the DCR No. 1 works may be affected due to dust impacts from heavy construction equipment, excavation, earthworks and soil disturbance, and demolitions. These impacts will be limited to the construction period and will be temporary and localized. WCC will minimize potential impacts to adjacent properties during construction (e.g. dust control measures). Therefore, the construction impacts to air quality are not considered significant. Mitigation Measures Measures to minimize potential air quality impacts during construction include the following Best Management Practices (BMPs): • Keep construction machinery and equipment in good operating condition. • No unnecessary idling of vehicles and limit the speed of vehicular travel. • Dust suppressant measures, as identified in Ontario Provincial Standard Specification (OPSS.MUNI 506), will be used during construction, where appropriate. This may include non-chloride dust suppressants or periodic watering. Chemical dust suppressants will not be used in natural areas where there are plants, watercourses, or other sensitive environmental features. • Disturbed lands will be vegetated (e.g., seeded) as appropriate and where possible, to reduce the potential for dust to develop from exposed soil. • Regular cleaning of construction sites and access roads to remove construction- caused debris and dust. • Cover loads when hauling fine-grained materials. • Use of enclosures, wet sandblasting and/or other techniques to minimize dust during any sandblasting operations. • Prompt cleaning of paved streets / roads where tracking of soil, mud or dust has occurred. • Tire washes and other methods to prevent trucks and other vehicles from tracking soil, mud or dust onto paved streets or roads. • Cover stockpiles of soil, sand and aggregate, as necessary and where possible.
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• Compliance with posted speed limits and, as appropriate, further reductions in speeds when travelling at sites with unpaved surfaces. • Opportunities for tree planting to reduce roadway particulate matter at nearby receptors (e.g. James Snow Parkway), will be examined and discussed in subsequent DCRs.
Waste and Contamination Given the industrial and commercial nature of the properties adjacent to the highway, a Contamination Overview Study was completed that determined there is high potential for environmental site contamination for properties along the highway corridor (URS 2013a, URS 2013b). Phase II Environmental Site Assessments (ESAs) were completed for three properties adjacent to the highway and Phase I ESAs were completed for two truck inspection stations on Highway 401 in 2017 (AECOM, March 2018a, AECOM, March 2018b, AECOM, March 2018c, AECOM, March 2018e, AECOM, March 2018f). Four additional Phase II ESAs were completed in 2019. A Designated Substances Survey (DSS) was completed for 17 bridges and eight structural culverts within the Project limits (AECOM February 2018a, AECOM February 2018b, AECOM March 2018d). These structures were tested for substances such as asbestos, lead, mercury, silica, polychlorinated biphenyls (PCBs), and others. Designated Substances and Hazardous Building Materials Assessments for the Trafalgar Road Inspection Stations (north and south of Highway 401) was also completed. Impacts The clearing and grubbing work will require the removal of some soils. As identified in the Phase II ESAs, the soil from 10862 Steeles Avenue contains cyanide concentrations above the applicable standard. This soil is considered contaminated and will require proper management and disposal. The results of the DSS confirmed that friable asbestos containing materials (ACM) were found on the CP Rail Bridge. Materials (e.g. joint sealant, waterproofing membrane, insulation materials, etc.) possibly installed along the bridge structures were not sampled and tested. Therefore, these materials must be assumed to contain asbestos. Silica is present in all concrete and masonry products, materials, and finishes within the bridge and structural culverts assessed in the DSS. No other designated substances were found on the CP Rail Bridge, the CN Rail Bridge, or the Trafalgar Road Underpass. General spills of deleterious materials may also occur on the construction site due to the presence of chemicals, fuels and lubricants for construction equipment. General best management practices should be employed to reduce the risk of spills from entering the environment.
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Mitigation Measures • WCC will utilize construction staging that avoids or minimizes spills and leaks into the watercourse. WCC will develop a Spill Prevention and Management Plan prior to commencement of construction and will include protocols to address spill events. All applicable spills are to be reported to the MECP Spills Action Response Centre. A spill kit will be kept on site at all times. • Remediation of contaminated soil will be completed as required. • Should any contaminated materials be encountered during the undertaking, caution will be exercised while handling and disposing of contaminated materials. Excess materials will be managed in accordance with standard MTO practices (as governed by OPSS 180). • During construction, if visual evidence of contamination is noted, further investigation may be required. • Excess soil/fill material that is not suitable for onsite use will be disposed properly off-site to a licensed facility that is approved to receive these materials. • The management, abatement or removal, and recycling or disposal of designated substances will adhere to various regulatory requirements or guidelines to ensure worker health and safety, including O. Reg. 347/90 (General – Waste Management), O. Reg. 278/05 (asbestos), the Environmental Protection Act (mercury), O. Reg. 490/09 and O. Reg. 213/91 (lead and silica dust), O. Reg. 463/10 (ozone depleting substances), the Ontario Ministry of Labour Guidelines for Lead and Silica on Construction Projects. Any potential ACMs should be treated as ACMs unless confirmatory sampling is completed. • WCC will update the designated substances listings throughout the Project term, as required. • WCC will provide subcontractors with the listings of identified designated substances. • An Asbestos Abatement Plan(s) will be prepared and implemented as required to address the friable ACM at the CPR bridge structure and other suspected ACMs in accordance with O. Reg. 278/05. • All other construction wastes and materials resulting from demolition or refurbishment will be identified and classified under O.Reg. 347. • Waste and recyclable materials including metal and plastic will not remain within the Project limits, and will be removed and properly managed off-site for re-use recycling or disposal. Asphalt and concrete will be re-used on the Project. • Any required approvals for waste management will be obtained by WCC.
Land Use and Property The existing lands within the Project limits is a mix of urban built-up areas, agricultural fields, and some greenlands. The east end of the project, in the City of Mississauga,
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August 2019 has more urban development in the form of commercial and employment lands, whereas the west end of the project is dominated by agricultural fields and industrial areas. There is one residential suburban neighbourhood south of Highway 401 and west of James Snow Parkway. Access for the farm operation that operates on each side of Highway 401 east of the Credit River will be maintained during DCR No. 1 works. The property that is required for this Project has been acquired by the province; no additional property is required for the Project works. Construction works will be limited to the Project Lands and fencing will be installed at the property boundary of the Project Lands to delineate the extent of where work can occur. Where access is required to any municipal, rail, or 407ETR right of way, the appropriate agreements and permits will be obtained. For the works in DCR No. 1, the following agreements will be obtained: • MTO Encroachment Permit • Permissions to Enter (PTEs), where needed • CN Rail Agreement • CP Rail Agreement • 407ETR Encroachment Permit
Navigation Protection Act No approval or permit is required under the Navigation Protection Act, 1985. Watercourses in the Project Limits are not on the List of Scheduled Waters. However, navigation will be maintained during construction and the existing navigation, at a minimum, will be maintained in the design. This is not applicable to any of the work in this DCR. 5.6 Cultural Heritage
Archaeology Previous Investigations and Potential Impacts Stage 1 Archaeological Assessments (AA) were completed during Preliminary Design (URS, 2010a, URS, 2010b, P088-018-2010, P088-031-2010). It recommended a combination of Stage 2 test pit survey and pedestrian survey for areas deemed to have archaeological potential, and which had not been previously assessed. A Stage 2 Archaeological Assessment was completed in 2017 and 2018 (AECOM 2018l, P123- 0358-2017) in accordance with the Standards and Guidelines for Consultant Archaeologists (MTCS, 2011). A total of 221 property parcels were identified as being impacted by the proposed improvements. Of the 221 property parcels, 145 parcels were identified as disturbed and containing no archaeological potential and 50 parcels were fully assessed and cleared of further archaeological concern. One site was identified as having archaeological potential and a Stage 3 Archaeological Assessment was recommended; however, the site and its protection and monitoring
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August 2019 buffers are within a portion of the Project limits (the Mitigation Lands, as described in Section 5.1.1) that will not be impacted by any ground disturbance or grading. Completion of the Stage 2 AA for the remaining properties requiring clearance is currently underway. Mitigation Measures • The remaining property parcels in the corridor will be cleared of archaeological potential prior to any ground disturbance at the locations. • Should the proposed improvements to Highway 401 result in the encroachment upon previously undisturbed lands determined to have archaeological potential, a Stage 2 Archaeological Assessment will be conducted in accordance with MTCS’ Standards and Guidelines for Consultant Archaeologists (2011) prior to any land disturbing activities. • Should previously undocumented archaeological resources be discovered, they may be a new archaeological site and therefore subject to Section 48 (1) of the Ontario Heritage Act. The person discovering the archaeological resources must cease alteration of the site immediately and engage a licensed consultant archaeologist to carry out archaeological fieldwork, in compliance with sec. 48 (1) of the Ontario Heritage Act. • The Cemeteries Act, R.S.O. 1990 c. C.4 and the Funeral, Burial and Cremation Services Act, 2002, S.O. 2002, c.33 (when proclaimed in force) require that any person discovering human remains must notify the police or coroner and the Registrar of Cemeteries at the Ministry of Government and Consumer Services.
Built Heritage Previous Investigations A review of built heritage features was undertaken during preliminary design (URS 2013a, URS2013b). In 2017, a Heritage Review was completed on the existing bridges and culverts within the Project limits (AECOM, 2017d). Based on the preliminary design and 2017 Heritage Review findings, further Cultural Heritage Evaluation Reports (CHERs) were undertaken (AECOM 2017a, AECOM 2017b, AECOM 2017c, AECOM 2018a). A summary of the overall findings is outlined below: • John Dolmage House, 7548 Trafalgar Road, Milton: Has cultural heritage value or interest according to criteria for a Provincial Heritage Property (PHP) outlined in O. Reg 9/06 and is listed on the Milton Heritage Inventory. It has since been determined that the Project will not impact this property. • Joseph Cunningham House, 7622 Fifth Line Road, Milton: Has cultural heritage value or interest according to criteria for a PHP outlined in O. Reg 9/06, but did not meet the criteria for a Provincial Heritage Property of Provincial Significance (PHPPS) outlined in O. Reg 10/06. The Project does not physically impact the
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Cunningham House, but there will be works occurring on the MTO ROW adjacent to the property that may affect the Cunningham House’s heritage attributes which require additional assessment. • Sylvan Oaks, 7564 Tenth Line West, Mississauga: Has cultural heritage value or interest according to O. Reg. 9/06 and that the house and the Cultural Heritage Landscape (CHL) also meet the criteria for a PHPPS outlined in O. Reg. 10/06. However, the Project does not encroach on the property line of Sylvan Oaks and no impact is anticipated on the CHL as a whole, or any individual feature or Heritage Attribute, therefore no further assessment or impact mitigation is required. • Cowin House, 14920 Steeles Avenue, Halton Hills: The Cowin House and bank barn at 14920 Steeles Avenue, Halton Hills, do not have cultural heritage value according to O. Reg. 9/06 and O. Reg 10/06 and no further assessment or impact mitigation is required. • Sixth Line Underpass, Sixth Line at Highway 401, bordering Halton Hills and Milton: Has cultural heritage value or interest according to criteria for a PHP outlined in O. Reg. 9/06, but did not meet the criteria for a PHPPS outlined in O. Reg 10/06. Although the Sixth Line underpass meets the criteria for O. Reg. 9/06, it does not score sufficiently to meet the threshold for the Ontario Heritage Bridge List, because the type of bridge was broadly common in the provincial system. The Project will be replacing the Sixth Line structure and demolishing the existing structure. No further heritage assessment is needed, but documentation of the existing structure is required. Potential Impacts With regards to the works in DCR No. 1, the following impacts to heritage features are anticipated: • Although the Cunningham House will not be physically impacted by the Project, the vegetation removals within the MTO right of way will impact the historical setting of the building. Presently the vegetation provides a buffer and screen between the property and the existing ROW, and this vegetation requires removal to facilitate the Project. • While works at the Sixth Line structure are not a part of DCR No. 1, vegetation clearing, grubbing and earthworks on the lands surrounding the structure may occur. Mitigation Measures • A Heritage Impact Assessment (HIA) was completed to address the vegetation removals impacting the Cunningham House. The HIA recommended landscaping to re-introduce a vegetative buffer of similar species between the MTO ROW and Cunningham House. This landscaping will be further detailed in a subsequent DCR and implemented by WCC.
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• A Heritage Documentation Report for the Sixth Line Structure will be completed prior to works occurring around the Sixth Line Structure. 5.7 Adjacent Studies/Projects Several other projects are taking place within or overlapping with the Project limits and are listed in Table 6. Where required, WCC will coordinate with some of these projects and their proponents to resolve any questions or concerns about design or construction. Table 6: Other Studies and Projects Adjacent to the Project Limits
Name of Other Studies / Projects Proponent Timing Peel Region/Mississauga Highway 401 Expansion – Credit River to MTO 2016 – 2020 403/410 Interchange Creditview Road Widening City of 2019 – 2020/21 Mississauga Widening and Reconstruction of the Derry Peel Region TBD Road and Argentia Road Intersection Widening of Winston Churchill Boulevard Peel Region EA completion 2020, Construction planned for 2025 West Trunk Twinning Project Peel Region 2020 – 2021 Halton Region Greater Toronto Area West Transportation MTO TBC Corridor Route Planning and Environmental Assessment Study (partially in Mississauga) Tremaine Road Interchange Halton Region 2022 – 2024 Sewer Crossing at 8th Line Halton Region 2019 – 2020 EA – Regional Road 25 Widening from 4 to 6 Halton Region EA Completion Mid- lanes from Steeles to 5th Side Road 2019, Construction planned for 2022 Watermain Crossing near Trafalgar Road Halton Region Underway, estimated Interchange completion 2019 Watermain replacement on Harrop Drive Halton Region In design, completion from Steeles Avenue to Hwy 401 (300 mm) by 2020 PR-2907
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Name of Other Studies / Projects Proponent Timing Watermain relocation (300 mm) just south of Halton Region In design, completion the 401 from Chisholm Drive to Peru Road by 2020 PR-3105 Road widening – Trafalgar Road from Halton Region 2019 – 2022 Steeles Ave to 10th Side Road 5.8 Summary of Environmental Concerns and Commitments The TESRs from preliminary design included a Table of Environmental Concerns and Commitments. These tables have been included as Appendix D with an additional column that details how the concerns and commitments have been addressed or carried through into detail design. A Table of Environmental Concerns and Commitments has been developed for the works covered under DCR No. 1 and is shown in Table 7.
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Table 7: Environmental Concerns and Commitments from DCR No. 1 Detail Design
Legend DFO: Fisheries and Oceans Canada MUN: Municipalities MNRF: Ministry of Natural Resources Forestry RES / BUS: Area residents and/or businesses MTO: Ministry of Transportation UTIL: Utilities CA: Conservation Authority MTCS: Ministry of Tourism, Culture and Sport MECP: Ministry of Environment, Conservation and Parks CNR: Canadian National Railway CPR: Canadian Pacific Rail
Ref Environmental Concern and Concerned ID No. Mitigation / Commitment No. Potential Impact Agencies 1.1 Apply standard erosion and sediment control (ESC) measures consistent with Ontario Provincial Standards and Specifications (OPSS). 1 Terrestrial Ecosystems – DFO These control measures will be implemented prior to work and be maintained during construction until disturbed areas have been Vegetation MNRF effectively stabilized with permanent vegetation cover. (Refer to Section 5.2).
MECP 1.2 Vegetation removals will be minimized to the extent feasible. During the design phase, opportunities to minimize removals were explored in conjunction with the design and grading limits. During construction, the mitigation measures below will minimize the risk of on-site MTO vegetation impacts. MUN 1.3 Provide clear delineation of vegetation clearing zones and vegetation retention zones (e.g. EPZs, Mitigation Lands, treed natural areas) CA within the Project limits in both the design documents and in the field to minimize the risk of vegetation impacts outside of the Project limits and avoid incidental impacts as a result of temporary stockpiling, debris disposal and access. Equipment, materials and other construction activities will not be permitted in these zones. 1.4 Prior to heavy machinery working adjacent to EPZs, Mitigation Lands, treed natural areas or edge management areas, tree protection fence will be installed outside the drip-line to protect any vegetation that is to be retained and is in the vicinity of exposure to damage by machinery or other sources. 1.5 Installation of tree protection fencing will be in accordance with Ontario Provincial Standard Specification (OPSS) (OPSS 801.07.02) – Construction Specification for the Protection of Trees and Ontario Provincial Standard Drawing (OPSD) 220.010 (formerly OPSS 805). 1.6 Tree clearing will be completed in accordance with OPSS 201 – Construction Specification for Clearing, Close Cut Clearing, Grubbing and Removal of Surface and Piled Boulders. 1.7 Tree stumps will be cut flush to the ground and grubbing minimized to the extent possible to reduce soil disturbance, particularly in erosion prone areas (i.e. slopes and areas adjacent to watercourses). 1.8 Prune roots or adjacent trees that are to be retained but extend into the work limits and that may be damaged from construction 1.9 Trees will be felled into the construction limits and where clearing and grubbing is permitted (i.e., away from areas to be retained).
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Ref Environmental Concern and Concerned ID No. Mitigation / Commitment No. Potential Impact Agencies 1.10 Trees/shrubs that are felled will be mulched as soon as possible, especially during the breeding bird season in order to prevent birds from nesting. In flat areas, wood chips will be placed over the ground as cover to provide erosion control. Where feasible, wood chips will be incorporated into topsoil for future plantings. 1.11 Grubbing will not follow clearing on slopes and near watercourses so that the roots are in place to provide stability, where applicable. Grubbing in these areas will be completed when construction works are to occur in these locations. 1.12 WCC will undertake relocation / realignment of the watercourses (i.e. Hornby Creek and Mullet Creek) in a manner which minimizes the number of trees impacted. The extent of the vegetation removals will be confirmed once the creek realignment design advances. 1.13 Equipment and heavy machinery will be stored away from naturalized areas to minimize damage to natural areas outside of the work limits. 1.14 Where possible, earth movement will be restricted immediately adjacent to woodlands during periods of high dust generation. 1.15 Avoid the compaction of soils and root zones around trees within natural features. 1.16 Vegetation communities occurring outside but adjacent to the Lands (identified as Edge Management Areas) will be protected with tree protection fence. 1.17 Undertake vegetation clearing outside of the appropriate timing windows for breeding birds (April 1 to August 31) and bat maternity roosting (April 1 to September 30). 1.18 At the edge management areas, where possible, only clearing will occur with narrow ‘no-grubbing’ zones identified in order to stimulate suckering and edge creation and to help buffer exposed forest interiors from wind, sun and salt spray. 1.19 For those areas specified as requiring edge management, a sufficient amount of topsoil will be retained onsite for use in restoration, if possible. If retaining topsoil is not feasible, clean topsoil which is free of invasive species can be used to facilitate future planting activities.
1.20 In the event that adjacent vegetation communities or planted trees are accidently damaged during construction activities, WCC will implement contingency measures such as pruning tree limbs or roots that are accidently damaged using proper arboricultural techniques during grading and excavation. 1.21 Invasive Species Management: Equipment working in the invasive species locations identified above will be thoroughly cleaned prior to moving from the site. 1.22 Clearing and grubbing activities will adhere to the Clean Equipment Protocol for Industry (Halloran et.al, 2013). 1.23 Soil contaminated with invasive species will not be re-used for restoration activities. 1.24 If soil contaminated with invasive species is to be used for non-restoration activities, it will be treated before re-use and buried at appropriate depths, or removed from site. 1.25 Key locations along the corridor where phragmites is prominent will be mapped prior to the commencement of clearing and grubbing. 1.26 Phragmites will be buried a minimum of 0.7m below clean fill in accordance with industry practice, to prevent further spread.
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Ref Environmental Concern and Concerned ID No. Mitigation / Commitment No. Potential Impact Agencies 1.27 Designated areas for equipment cleaning and invasive species stockpiles will be identified and demarcated in the field, if applicable. The designated areas will not be located in or near watercourses, environmental sensitive features or areas where invasive species are not currently present. 1.28 An Invasive Species Management Plan will be developed, as part of the Project, and will include the construction phase mitigation measures outlined above, as well as the invasive species management for the future landscape and restoration activities. 2.1 WCC will undertake woodland clearing outside of the timing window for the bat maternity roosting season (April 1 to September 30). 2 Terrestrial Ecosystems – DFO Wildlife and Wildlife Habitat 2.2 WCC will provide training to all on-site personnel to outline wildlife that may be present on-site as well as responsibilities to report wildlife MNRF and potential SAR to the WCC SAR Specialist. The training manual will include fact sheets for known SAR in the area which will also note MECP procedures for reporting / handling any encounters with injured or deceased SAR. MTO 2.3 Under no circumstances will any animal (i.e., bird, turtle, snake, mammal, butterfly, etc.) be knowingly harmed, harassed or otherwise disturbed. If an animal is encountered, it will be permitted to move away on its own. MUN 2.4 If wildlife is observed or encountered in the work area and remains within the work area, construction activities will cease, if required, so CA as not to harm the animal. Appropriate personnel, such as the WCC Wildlife Biologist, will be notified. The WCC Biologist will determine the significance of the species, handle the wildlife accordingly, and if required notify the appropriate regulatory agency. Wildlife encounters should be handled according to the Environmental Awareness Training Manual and the Safe Handling Protocol. 2.5 The design for wildlife passages, fencing and escape ramps will be covered in a subsequent DCR. The purpose of installing wildlife fence is to exclude both large and small wildlife from the Highway 401 ROW and to re-direct animals toward the wildlife passages. 2.6 Migratory Birds: Active nests will not be knowingly removed or disturbed in accordance with the MBCA (1994). 2.7 WCC will undertake vegetation clearing outside of the appropriate timing windows for breeding birds (April 1 to August 31). 2.8 If vegetation clearing cannot be scheduled outside of the breeding bird season, WCC’s Avian Specialist will be deployed to conduct a nest survey in the area to be cleared in ‘simple habitats’ (habitats that contain few likely nesting spots or a small community of migratory birds). • If the active nests of migratory birds are located, then the nest will be noted using handheld GPS and vegetation clearing will be delayed to allow for fledging of the young. • To avoid potential nest abandonment and/or predation, nests will be physically flagged if they are located close to an active construction zone and are a risk of accidental damage. 2.9 Complete inspections of all culverts and structures that are proposed for removal or alteration prior to construction to determine the presence of bird nests which may be protected under the MBCA (1994) (i.e., Cliff Swallow) or the ESA (2007) (i.e., Barn Swallow). 2.10 WCC will install bird nesting preventative measures (such as wire screens, netting, tarps, etc.) on the three structures included in DCR No. 1 prior to the active season (before April 1) and be maintained until August 31 of the same calendar year.
3.1 WCC will use a staged approach to clearing and grubbing near watercourses and drainage features. Clearing will occur when the 3 Aquatic Ecosystems – DFO appropriate permitting or approval is in place (if required) and according to vegetation timing constraints. Grubbing adjacent to Watercourses, Fish and MOE watercourses will not occur immediately following clearing, where applicable, so that roots remain in the ground for stability and as a Fish Habitat natural ESC measure. Grubbing will only occur when it is required to support or facilitate the construction works. If vegetation removals
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Ref Environmental Concern and Concerned ID No. Mitigation / Commitment No. Potential Impact Agencies
MNR below the HWM for non-SAR watercourses are required, an MTO Project Notification Form has to be completed in advance and work is to occur during the appropriate fisheries in-water work timing window: MTO • For warmwater watercourses, the permitted in-water work window is July 1 to March 31, which falls within this Project’s proposed CA schedule for clearing • For coolwater watercourses, the permitted in-water work window is June 15 to September 30 • For the coolwater (Atlantic Salmon) watercourse, the permitted in-water work window is July 1 to August 15 3.2 For clearing and grubbing within the Redside Dace Regulated Habitat (Occupied and Contributing) watercourses, the permitted in-water work window is July 1 to September 15. Clearing and Grubbing within Redside Dace Regulated Habitat will not take place until required permits and approvals are received. Clearing and grubbing will be completed between July 1 and September 15 or as per conditions of the permit. Nest sweeps should be conducted prior to vegetation removals where removals are required outside of the breeding bird window. 3.3 All materials and equipment used will be operated and stored in such a manner that prevents any deleterious substance from entering the water. 3.4 WCC will utilize construction staging that avoids or minimizes spills and leaks into the watercourse. 3.5 WCC will minimize the disturbance or removal of riparian vegetation, to the extent feasible. 3.6 Stockpiled materials will be stored and stabilized away from the water. 3.7 Opportunities for enhancing shading of the watercourse by planting native species in areas of overhanging / riparian vegetation loss will be examined during subsequent stages of detail design. 3.8 ESC measures consistent with Ontario Provincial Standards and Specifications (OPSS) which will be implemented prior to work and be maintained during construction until disturbed areas have been effectively stabilized with permanent vegetation cover. (Refer to Section 5.2). 3.9 WCC will monitor erosion and sediment control systems for effectiveness, repairing deficient controls in a timely manner using an adaptive management approach when deemed appropriate. 3.10 All disturbed areas of the work site will be stabilized and revegetated promptly, and/or treated with appropriate erosion protection materials. In riparian and aquatic habitats, all temporarily disturbed areas will be reinstated to original condition, upon completion of works. 4.1 4 Species at Risk MECP Aquatic Species at Risk: For wildlife encounters with SAR refer to Section 5.1.2 Mitigation Measures. MTO 4.2 Aquatic Ecosystem Mitigation Measures from Section 5.1.3 apply. CA 4.3 Clearing and Grubbing within Redside Dace Regulated Habitat will not take place until required permits and approvals are received. Clearing and grubbing will be completed between the in-water work timing window (July 1 and September 15) or as per conditions of the permit. 4.4 ESC BMPs for Redside Dace Regulated Habitat will be consistent with Guidance for Development Activities in Redside Dace Protected Habitat (MNRF, 2016).
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Ref Environmental Concern and Concerned ID No. Mitigation / Commitment No. Potential Impact Agencies 4.5 While completing project activities within Redside Dace Regulated Habitat, daily monitoring will occur. Additional monitoring details are included in Section 7.2. 4.6 Environmental training will be conducted so all staff are aware of the importance of maintaining proper ESCs for the purpose of protecting aquatic SAR. 4.7 All construction equipment and machinery will be operated within the construction zone and will not create any additional disturbance to the existing bed and banks of the watercourses within the Redside Dace Regulated Habitat. 4.8 Machinery will be refuelled, washed and serviced a minimum of 30m away from the top of bank to prevent discharge of deleterious substances into occupied and contributing watercourses. 4.9 No vehicles or machinery may enter the Credit River at any time. 4.10 Site restoration of Redside Dace habitat will be undertaken following the completion of the proposed works in accordance with permits and approvals and will be described in subsequent DCRs, 4.11 Terrestrial Species at Risk: For wildlife encounters with SAR refer to Section 5.1.2 Mitigation Measures. 4.12 Vegetation removals will be minimized to the extent feasible. During the design phase, opportunities to minimize removals were explored in conjunction with the design and grading limits. During construction, the mitigation measures below will minimize the risk of on-site vegetation impacts. 4.13 Tree protection measures as described in Section 5.1.1 also apply to bat habitat. 4.14 Removals of Bat SAR habitat will be done in accordance with the conditions of the Bat SAR Letter of Advice obtained from MNRF (MNRF File No. AU-LOA-11-19). 4.15 WCC will undertake SAR Bat vegetation clearing and removal of the anthropogenic structure outside of the timing window for the bats maternity roosting season (April 1 to September 30). 4.16 Any construction activities within 30m of known cavity trees or the chicken coop will be restricted to daylight hours when possible. MNRF 5.1 A Landscaping and Ecological Restoration Plan will be developed as part of this Project and will identify areas which will receive 5 Landscaping and Ecological MECP enhancement and/or restoration as well as areas where vegetation will be protected. The Plan will include details regarding Valley Restoration MTO Restoration, Edge Management Areas, Bat SAR habitat restoration and compensation, Enhancement and Restoration of Significant CA Wildlife Habitat (e.g. Monarch, Terrestrial Crayfish, and Black Walnut, where feasible), Fish Habitat Enhancement and Riparian Habitat Restoration (including aquatic SAR areas), and Stormwater Management (SWM) Pond Naturalization. 6 Groundwater MECP 6.1 WCC will limit the depth of excavation and minimize the need for dewatering during construction, particularly in areas designated as CA having a high potential for groundwater impact (i.e. creeks and tributaries). 6.2 All materials and equipment used will be operated and stored in such a manner that prevents any deleterious substances from entering the water. 6.3 WCC will utilize construction staging that avoids or minimizes spills and leaks into the watercourse. 6.4 WCC will complete and obtain an EASR registration or Permit to take Water (PTTW) for all works undertaken with the Project Limits, as required.
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Ref Environmental Concern and Concerned ID No. Mitigation / Commitment No. Potential Impact Agencies 6.5 Dewatering activities will be conducted in accordance with all applicable procedures provided in the Ontario’s Water Taking Regulation (O. Reg. 387/04 made under the Ontario Water Resource Act, as amended by O. Reg. 64/16, March 29, 2016), the new EASR regulation (O. Reg. 63/16, March 29, 2016), OPSS 518 Control of Water from Dewatering Operations, and the specific requirements outlined under the EASR registration and/or PTTW. 6.6 Private wells from the Door-to-Door Well Survey will be monitored during construction and if impacts are noted more frequent monitoring of the wells and possible further assessment of the impacts will be required. 6.7 Water wells or groundwater monitoring wells encountered or installed during future highway construction activities, if no longer in use, will be properly decommissioned as per the Ontario Wells Regulation (R.R.O. 1990, Reg. 903). 6.8 WCC will minimize groundwater recharge impacts by directing the surface runoff to roadside ditches and improve ditch conditions during construction. 6.9 Silt laden discharge water from dewatering activities will be directed away from the watercourse in such a way as to minimize sedimentation. 6.10 Application of appropriate energy dissipation and settling/ filtration measures during temporary dewatering of the near or instream construction zones. 6.11 A Groundwater Monitoring Program will be implemented during construction to monitor the dewatering discharge at any EASR or PTTW locations and to monitor private water wells within 500 m of EASR or PTTW locations. 6.12 Investigate and promptly address any complaints of interference with surrounding lands, natural features, properties, or property owners related to construction activities such as well installation or dewatering activities, to the satisfaction of the affected land owner or agency. 6.13 Follow best management practices for road de-icing applications, as applicable for WCC’s construction work zone. 7 Surface Water MECP 7.1 General Aquatic Ecosystem Mitigation Measures from Section 5.1.3 apply. MNRF 7.2 Erosion and sediment control measures will be employed during construction to manage surface water runoff and construction drainage. MTO See Section 5.2 for additional ESC details. CA 7.3 WCC will undertake a Surface Water Monitoring Program during construction to identify whether there are any changes in surface water quality due to construction works. See Section 7.2 for additional details. 7.4 Adaptive management measures are to be implemented if necessary during construction. 8 Erosion and Sediment MECP 8.1 WCC will retain natural vegetation cover where possible, and minimize root grubbing where possible, to provide natural erosion control Control MNRF cover. MTO 8.2 Grubbing will occur in flat areas along with clearing. Vegetation removed in these areas will be mulched and the wood chips placed on the CA ground for cover to help reduce erosion. 8.3 Grubbing will not occur after clearing on slopes and adjacent to watercourses so that roots remain in place to provide stability and reduce the risk of erosion and sedimentation. Grubbing will occur in these areas when required for construction work. 8.4 WCC will implement the ESC measures prior to the start of construction which includes the clearing and grubbing or disturbance of soil and will be maintained during construction until the disturbed areas have been effectively stabilized.
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Ref Environmental Concern and Concerned ID No. Mitigation / Commitment No. Potential Impact Agencies 8.5 WCC will minimize the disturbance or removal of riparian vegetation and promptly stabilize and re-vegetated all disturbed areas of the work site, and/or treat the site with appropriate erosion protection materials. In riparian and aquatic habitats, all temporarily disturbed areas will be reinstated to original condition, upon completion of works. 8.6 ESC measures will be installed per design, maintained and monitored frequently to confirm they are working effectively and according to OPSS 805 (Construction Specification for Temporary Erosion and Sediment Control Measures). The ESC measures will be inspected and cleaned out when accumulated sediment reaches half the design height. 8.7 Filter socks, rock-check dams, fiber roll flow check dams (or equivalent flow checks) will be placed as necessary at appropriate intervals in the ditches down gradient from areas of soil disturbance to trap suspended sediments and reduce the erosive force of runoff. 8.8 Stockpiled materials will be stored away from water and any sensitive natural features including species at risk mitigation lands. Sediment control measures such as silt fence will be around the base of the stockpile to prevent mobilization of the stockpile. 8.9 In the event of a sediment spill, WCC will take reasonable action to stop the spread of spilled materials by blocking catch basins, digging trenches, creating dykes, and spreading an absorbent. 9 Excess Earth MTO 9.1 Suitable excavated soils will be reused within the Project limits as much as possible. MECP 9.2 Stockpiles of contaminated or potentially contaminated soil will be contained to prevent the infiltration of precipitation and/or generation of
runoff. 9.3 Limit any imported soil to that which does not exceed the Canadian Council of Ministers of the Environment Canadian Environmental Quality Guidelines. Further, in accordance with the MECP Best Management Practices, imported fill will be characterized such that it can be confirmed that no new contaminants will be introduced to the site. 9.4 Offsite management and disposal of waste and excess materials generated during construction will be conducted in accordance with O.Reg. 347 and OPSS 180. 9.5 Stockpiled materials will be stored and stabilized at least 30 m away from any watercourse unless appropriate engineered control works are in place. 9.6 Stockpiled material will be stored a minimum distance of 30 m away from the Credit River and outside of the floodplain in a manner that prevents sediment or deleterious substances from entering the watercourse. 9.7 Materials will not be stockpiled within 30 m of Redside Dace Regulated Habitat for occupied watercourses, and up to the high-water mark for contributing watercourses. 9.8 Earth will not be located within the boundaries of a sensitive environmental area as defined in Ont. Reg. 153/04 (as amended). 9.9 Earth will not be placed in locations where there is direct drainage to that location. 9.10 Stockpiles will not be placed on property or within areas of known or suspected contamination. 9.11 Measures to prevent the mobilization of stockpiles will be employed using silt fences and other erosion control methods as appropriate. 9.12 Necessary steps will be taken to minimize dust emissions, and limit infiltration of precipitation and discharge of soil particles through drainage and runoff. 9.13 Stockpiles will be monitored to confirm that the stockpiles remain intact and that there are no environmental adverse effects, erosion issues or sedimentation concerns.
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Ref Environmental Concern and Concerned ID No. Mitigation / Commitment No. Potential Impact Agencies 9.14 Where environmental or other concerns are identified, necessary corrective action will be taken in a timely manner. 10 Noise and Vibration MTO 10.1 Noise: MECP Minor noise impacts due to equipment used for clearing, grubbing, earthworks, general bridge construction, and for placement of fencing MUN and temporary concrete barriers for protection of work areas. RES / BUS 10.2 Pile driving activities for CN Rail, CP Rail and Trafalgar Road structures will be the greatest source of noise impacts, however, the piling will be localized to bridge piers, and abutment locations and will be temporary. 10.3 Demolition of the existing bridge structures. 10.4 For the works outlined in DCR No. 1 there will be some construction activities occurring at night and on weekends in order to minimize impacts to traffic. These activities are limited to demolition and delivery of equipment and materials at Trafalgar Road Underpass structure and traffic control setup and delivery or equipment and materials at both the CN and CP Rail structures and will only be for short durations. 10.5 If complaints regarding noise arise from construction, they will be investigated according to the provisions of MTO Environmental Guide for Noise (October 2006). Any initial noise complaint will trigger verification that the general noise control measures agreed to are in effect. 10.6 Vibration: To the extent possible, limit noisy construction activities to daytime hours. 10.7 In noise sensitive areas, pile driving will be restricted to daytime hours. 10.8 No blasting will be undertaken for the construction of the Highway 401 Expansion. 10.9 Equipment will be maintained in good operating condition and comply with MECP noise emission standards (Noise Pollution Control (NPC) – 115 and NPC-118 and Ontario Model Municipal Noise Control By-Law). 10.10 WCC will keep idling of construction equipment to a minimum. 10.11 WCC will maximize the distance between the construction staging areas and nearby receptors to the greatest extent possible. 10.12 Maintain construction haul roads to prevent potholes and ruts to avoid the loud noise caused by construction vehicles travelling over uneven road surfaces. 10.13 If complaints regarding construction noise arise from construction, they will be investigated according to the provisions of MTO Environmental Guide for Noise (October 2006). Any initial noise complaint will trigger verification that the general noise control measures agreed to are in effect. 10.14 Heavily loaded trucks will be routed away from residential streets, where possible. 10.15 The use of equipment that generate high levels of vibration will be minimized, where feasible. 10.16 Equipment used within 80m of Thermo Fisher Scientific receptor cannot exceed a vibration velocity 400 micro-m/sec (PPV). If required, equipment will be tested before commencing construction activity in the vicinity of Thermo Fisher Scientific. WCC will also conduct vibration monitoring during construction works within 80m of the property to verify that the vibration velocity is not exceeded. 11 Air Quality MTO 11.1 Keep construction machinery and equipment in good operating condition. MECP 11.2 No unnecessary idling of vehicles and limit the speed of vehicular travel.
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Ref Environmental Concern and Concerned ID No. Mitigation / Commitment No. Potential Impact Agencies 11.3 Dust suppressant measures, as identified in Ontario Provincial Standard Specification (OPSS.MUNI 506), will be used during construction, where appropriate. This may include non-chloride dust suppressants or periodic watering. Chemical dust suppressants will not be used in natural areas where there are plants, watercourses, or other sensitive environmental features. 11.4 Disturbed lands will be vegetated (e.g., seeded) as appropriate and where possible, to reduce the potential for dust to develop from exposed soil. 11.5 Regular cleaning of construction sites and access roads to remove construction-caused debris and dust. 11.6 Cover loads when hauling fine-grained materials. 11.7 Use of enclosures, wet sandblasting and/or other techniques to minimize dust during any sandblasting operations. 11.8 Prompt cleaning of paved streets / roads where tracking of soil, mud or dust has occurred. 11.9 Tire washes and other methods to prevent trucks and other vehicles from tracking soil, mud or dust onto paved streets or roads. 11.10 Cover stockpiles of soil, sand and aggregate, as necessary and where possible. 11.11 Compliance with posted speed limits and, as appropriate, further reductions in speeds when travelling at sites with unpaved surfaces. 11.12 Opportunities for tree planting to reduce roadway particulate matter at nearby receptors (e.g. James Snow Parkway), will be examined and discussed in subsequent DCRs. 12 Waste and Contamination MTO 12.1 WCC will utilize construction staging that avoids or minimizes spills and leaks into the watercourse. WCC will develop a Spill Prevention UTIL and Management Plan prior to commencement of construction and will include protocols to address spill events. All applicable spills are to be reported to the MECP Spills Action Response Centre. A spill kit will be kept on site at all times. 12.2 Remediation of contaminated soil will be completed as required. 12.3 Should any contaminated materials be encountered during the undertaking, caution will be exercised while handling and disposing of contaminated materials. Excess materials will be managed in accordance with standard MTO practices (as governed by OPSS 180). 12.4 During construction, if visual evidence of contamination is noted, further investigation may be required. 12.5 Excess soil/fill material that is not suitable for onsite use will be disposed properly off-site to a licensed facility that is approved to receive these materials. 12.6 The management, abatement or removal, and recycling or disposal of designated substances will adhere to various regulatory requirements or guidelines to ensure worker health and safety, including O. Reg. 347/90 (General – Waste Management), O. Reg. 278/05 (asbestos), the Environmental Protection Act (mercury), O. Reg. 490/09 and O. Reg. 213/91 (lead and silica dust), O. Reg. 463/10 (ozone depleting substances), the Ontario Ministry of Labour Guidelines for Lead and Silica on Construction Projects. Any potential ACMs should be treated as ACMs unless confirmatory sampling is completed. 12.7 WCC will update the designated substances listings throughout the Project term, as required. 12.8 An Asbestos Abatement Plan(s) will be prepared and implemented as required to address the friable ACM at the CPR bridge structure and other suspected ACMs in accordance with O. Reg. 278/05. 12.9 All other construction wastes and materials resulting from demolition or refurbishment will be identified and classified under O.Reg. 347.
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Ref Environmental Concern and Concerned ID No. Mitigation / Commitment No. Potential Impact Agencies 12.10 Waste and recyclable materials including metal and plastic will not remain within the Project limits, and will be removed and properly managed off-site for re-use recycling or disposal. Asphalt and concrete will be re-used on the Project. 12.11 Any required approvals for waste management will be obtained by WCC. 13 Archaeology MTO 13.1 The remaining property parcels in the corridor will be cleared of archaeological potential prior to any ground disturbance at the locations. MTCS 13.2 Should the proposed improvements to Highway 401 result in the encroachment upon previously undisturbed lands determined to have archaeological potential, a Stage 2 Archaeological Assessment will be conducted in accordance with MTCS’ Standards and Guidelines for Consultant Archaeologists (2011) prior to any land disturbing activities. 13.3 Should previously undocumented archaeological resources be discovered, they may be a new archaeological site and therefore subject to Section 48 (1) of the Ontario Heritage Act. The person discovering the archaeological resources must cease alteration of the site immediately and engage a licensed consultant archaeologist to carry out archaeological fieldwork, in compliance with sec. 48 (1) of the Ontario Heritage Act. 13.4 The Cemeteries Act, R.S.O. 1990 c. C.4 and the Funeral, Burial and Cremation Services Act, 2002, S.O. 2002, c.33 (when proclaimed in force) require that any person discovering human remains must notify the police or coroner and the Registrar of Cemeteries at the Ministry of Government and Consumer Services. 14 Built Heritage MTO 14.1 A Heritage Impact Assessment (HIA) was completed to address the vegetation removals impacting the Cunningham House. The HIA MTCS recommended landscaping to re-introduce a vegetative buffer of similar species between the MTO ROW and Cunningham House. This MUN landscaping will be further detailed in a subsequent DCR and implemented by WCC. 14.2 A Heritage Documentation Report for the Sixth Line Structure will be completed prior to works occurring around the Sixth Line Structure.
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6 Environmental Approvals and Permits for DCR No. 1 Works The permits, licenses, agreements and approvals required for works covered under DCR No. 1 are summarized in Table 8. Table 8: Permits, Licenses, Agreements and Approvals for DCR No. 1 Works
Permit / Approval Issued By Related Works MTO Encroachment MTO For work at the three structures Permit included in DCR No. 1 on MTO- owned lands Road Occupancy Region of Peel For works in municipal Right of Permit Region of Halton Ways City of Mississauga Town of Milton Town of Halton Hills LoA for bat SAR MNRF* and MECP Vegetation removal of bat SAR (MNRF File No. AU- habitat LOA-11-19) 17 2 (c) ESA Permit for DFO Vegetation clearing in Regulated Redside Dace Redside Dace Habitat EASR/PTTW MECP Potential water taking at CN Rail Overhead Structure and Trafalgar Road Underpass Structure Archaeological MTCS Stage 2 Archaeological Assessment Clearance completed CN Rail Agreement CN Railway For work at the Highway 401 over CN Rail Structure CP Rail Agreement CP Railway For work at the CP Rail Overhead Structure 407ETR Encroachment 407ETR For clearing and works done on Permit 407ETR lands *LoA for Bat SAR was obtained when ESA, 2007 and SAR permitting was administered through MNRF. MECP is now the regulatory agency responsible for ESA, 2007 and SAR permitting.
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7 Monitoring 7.1 Monitoring Prior to Construction During the completion of the detail design and EA process and permit and approval acquisition, the design drawings and specifications will be further developed and finalized. There is a possibility that design modifications or refinements may be required during this process, which could result in environmental benefits or impacts that may not have been anticipated or identified in this document. Should this occur, the modifications are not anticipated to alter the basic intent of the undertaking. Pertinent changes resulting from significant design modifications / refinements will be discussed with appropriate external agencies and members of the public prior to construction, as deemed necessary. 7.2 Construction Monitoring Monitoring programs will be implemented to: • Assess compliance with the design details, environmental commitments and conditions of permits and approvals; and, • Monitor the effectiveness of mitigation measures and identify the need for additional measures or adaptive management, where necessary. Construction and Environmental Site Inspection Daily site inspections will occur for the Project by construction and environmental staff. Monitoring will be undertaken in compliance with MTO’s Construction Administration and Inspection Task Manual (CAIT Manual) and the conditions or commitments of the EA and permits, licenses, approvals or agreements obtained. Surface Water Monitoring Program During construction, WCC will implement a Surface Water Monitoring and Mitigation Program at four watercourses where baseline monitoring was conducted by MTO in 2017 and 2018. The monitoring program will include water level data and collection of bi-weekly samples upstream and downstream of the from four identified watercourses from April to November until Substantial Completion of the Project. The program will commence in 2020. The monitoring program will identify whether there are any changes in surface water quality due to construction works. Samples will be collected bi-weekly during the construction period and analyzed for TSS, total phosphorus, ammonia, chloride, copper and zinc, and oil and grease. Temperature, conductivity, pH and dissolved oxygen will be measured on site during sample collection. Adaptive management measures will be implemented if necessary, during construction to control levels to match the baseline
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data results collected or to improve upon the baseline results, but not to exceed them during construction. Groundwater Monitoring Program WCC will be responsible for undertaking monitoring of private water supply wells for groundwater quality and quantity at a minimum once before, once during, and once immediately after construction activities. For the structure locations where an EASR or PTTW is required, private water wells within 500m radius from the dewatering locations will be monitored. Groundwater quality analysis will include, as a minimum, both bacterial parameters and general drinking water quality parameters. If impacts to the quality and quantity of the water wells are observed or reported, more frequent monitoring of the wells may be required until the monitoring result consistently indicates that no impacts are present. Additional monitoring will also be implemented in accordance with EASR or PTTW conditions. Vibration Monitoring at Thermo Fisher Scientific WCC will conduct site specific vibration monitoring at the Thermo Fisher Scientific Property, 2100 Syntax Court in Mississauga. The monitoring will be conducted at three outdoor locations approximately one metre from the building façade. WCC will be responsible for continuously monitor vibration levels during any and all construction activities in the vicinity (within 80 m) of the Thermo Fisher Scientific Property to verify that the construction activities do not exceed the vibration limit. Monitoring for Fisheries Act, SARA and/or ESA Specific monitoring requirements will be determined when permits, approvals and authorizations are received. A primary focus of the monitoring will be related to ESC measures, which will also be monitored through the daily Construction and Environmental Site Inspections. Redside Dace Regulated Habitat monitoring during construction will include photographic records of the site conditions, inspection of all environmental protection systems, visual water quality observations and in situ turbidity and/or TSS measurements and in accordance with the Draft Guidance for Development Activities in Redside Dace Protected Habitat (MNRF, 2016). Monitoring will also include weather conditions, review of Halton Conservation (CH) flood messages (via internet) and visual monitoring of flow conditions adjacent to the construction site. Post- construction effectiveness monitoring will also be implemented in accordance with future permit conditions. Vegetation and Wildlife Monitoring Will include monitoring of overall site conditions and specific monitoring associated with the Bat SAR Letter of Advice (MNRF File No. AU-LOA-11-19).
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7.3 EA Compliance Monitoring Monitoring compliance with the commitments and conditions of the EAs (Preliminary Design TESRs and Detail Design DCRs) along with conditions and commitments of environmental approvals will be on-going throughout the Project. In addition to the documentation in the DCRs, an Annual Compliance Report will be prepared to document progress and compliance with EA commitments and conditions.
8 References AECOM, 2017a: Cultural Heritage Evaluation Report, 7622 Fifth Line, Cunningham House, Highway 401 Expansion, Regional Road 25 to the Credit River (W.O. # 17, Agreement #2016-E-0004) for MTO. November, 2017. AECOM, 2017b: Cultural Heritage Evaluation Report, 14920 Steeles Avenue, Cowin House, Highway 401 Expansion, Regional Road 25 to the Credit River (W.O. # 17, Agreement #2016-E-0004) for MTO. October, 2017). AECOM, 2017c: Cultural Heritage Evaluation Report, Sylvan Oaks, the Hustler Farm, Highway 401 Expansion Regional Road 25 to the Credit River (W.O. # 17, Agreement #2016-E-0004) for MTO. October, 2017. AECOM, 2017d: Highway 401 Expansion from Regional Road 25 to the Credit River, Bridge & Culvert Heritage Review Technical Memorandum for MTO. November 2017. AECOM, 2018a: Cultural Heritage Evaluation Report, Sixth Line Underpass, Highway 401 Expansion, Regional Road 25 to the Credit River (W.O. # 17, Agreement #2016-E- 0004) for MTO. January, 2018. AECOM, 2018b: Hornby Creek Fluvial Geomorphic Assessment and Channel Design. AECOM, 2018c: Mullet Creek Fluvial Geomorphic Assessment and Channel Design. AECOM, 2018d: Highway 401 Expansion Terrestrial Ecosystems Existing Conditions and Impact Assessment Memorandum. March 2018. AECOM, 2018e: Highway 401 Expansion from Regional Road 25 to the Credit River Terrestrial Ecosystem Framework. AECOM, 2018f: Highway 401 Expansion from Regional Road 25 to the Credit River – Traffic Noise Impact Assessment AECOM, 2018g: Highway 401 Expansion from Regional Road 25 to the Credit River – Door-to-Door Water Well Survey, February 2018. AECOM, 2018h: Highway 401 Expansion, Thermo Fisher Scientific - Baseline Vibration Measurement Study
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AECOM, 2018i: Highway 401 Expansion, Thermo Fisher Scientific - Construction Vibration Assessment and Vibration Monitoring Program AECOM, 2018j: Highway 401 Expansion from Regional Road 25 to the Credit River - Technical Memo: Air Quality Modelling of 2041 Scenarios. March 2018. AECOM, 2018k: Provisional Fisheries Assessment and Pathways of Effect (PoE) Analysis. August 2018. AECOM, 2018l: Highway 401 Expansion from Regional Road 25 to the Credit River: Stage 2 Archaeological Assessment AECOM, February 2018a: Designated Substances and Hazardous Building Materials Assessment, Trafalgar North Inspection Station, Highway 401 Expansion, Credit River to Regional Road 25. AECOM, February 2018b: Designated Substances and Hazardous Building Materials Assessment, Trafalgar South Inspection Station, Highway 401 Expansion, Credit River to Regional Road 25. AECOM, March 2018a: Phase II Environmental Site Assessment, 2100 Syntex Court, Mississauga, Ontario. AECOM, March 2018b: Phase II Environmental Site Assessment, 10862 Steeles Avenue East, Milton, Ontario. AECOM, March 2018c: Phase II Environmental Site Assessment, 6780 Creditview Road, Mississauga, Ontario AECOM, March 2018d: Designated Substances Survey for Highway 401 Expansion – Regional Road 25 to the Credit River Foundation Remediation for Bridge/Culvert Structures AECOM, March 2018e: Phase One Environmental Site Assessment, Trafalgar North Inspection Station, Highway 401 Expansion, Credit River to Regional Road 25. AECOM, March 2018f: Phase One Environmental Site Assessment, Trafalgar South Inspection Station, Highway 401 Expansion, Credit River to Regional Road 25. AMEC Earth & Environmental, 2011: Terrestrial Existing Conditions Report. Preliminary Design and Detail Design – 2008-E-0027. MTO Highway 401 from Trafalgar Road to Regional Road 25, Halton Region. Prepared for MTO. AMEC Environment & Infrastructure, 2012: Preliminary Design and Class Environmental Assessment Terrestrial Impact Assessment Report Highway 401 Improvements from East of the Credit River to Trafalgar Road. Prepared for MTO. August 2012.
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Bakowsky, W.D., 1996: Vegetation Communities of Southern Ontario. MNRF Natural Heritage Information Centre, Peterborough. Halloran, J., H. Anderson and D. Tassie, 2013: Clean Equipment Protocol for Industry. Peterborough Stewardship Council and Ontario Invasive Plant Council. Peterborough, ON. Available at: http://www.invasivespeciescentre.ca/SiteAssets/Files/WhatWeDo/LandownersKit/Clean _Equipment_Protocol_for_Industry.pdf MNRF, 2015: Significant Wildlife Habitat Ecoregion 7E Criterion Schedule. January 2015. 40 pp. MNRF, 2016: Guidance Document for Development Activities in Redside Dace Protected Habitat. MMM Group, 2016: Trafalgar Road (Regional Road 3) Transportation Corridor Improvements Class Environmental Assessment Study. Section 1 – Steeles Avenue to North of 10 Side Road. June 2016. MTCS, 2011: Standards and Guidelines for Consultant Archaeologists. 2011. MTCS, 2017: Standards & Guidelines for Conservation of Provincial Heritage Properties - Information Bulletin 3: Heritage Impact Assessments for Provincial Heritage Properties (January 31, 2017). MTO, 2000: Class Environmental Assessment for Provincial Transportation Facilities. July 2000. MTO, 2018: MTO – Bridge Embossment Criteria, Highway 401 Expansion. February 2018. Novus Environmental, 2012: Highway 401 Improvements from East of Credit River to Trafalgar Road, Novus Reference No. 10-0012. Air Quality Assessment Report, October 2012. RWDI, 2011: Highway 401 Widening From Trafalgar Road to Regional Road 25, RWDI # 0940355. Air Quality Assessment Report, June 2011. URS Canada Ltd., 2010a: Stage 1 Archaeological Assessment, Highway 401 Widening from East of the Credit River to Trafalgar Road, Class Environmental Assessment, Region of Peel and Region of Halton, Ontario, P088-031-2010, on file with MTCS URS Canada Ltd., 2010b: Stage 1 Archaeological Assessment, Highway 401 Improvements, Regional Road 25 to Trafalgar Road, Class Environmental Assessment (Group B), Town of Milton, Town of Halton Hills, Regional Municipality of Halton, Ontario, P088-018-2010, on file with MTCS URS Canada Ltd., 2011b: Noise Study report, Preliminary Design Services, Highway 401 Improvements – Trafalgar Road to Regional Road 25.
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URS Canada Ltd., 2013a: Highway 401 Improvements from Credit River to Trafalgar Road Preliminary Design and Class EA Study (W.O. 07-20021). Transportation Environmental Study Report. May 2013. URS Canada Ltd., 2013b: Highway 401 Improvements from Trafalgar Road to Regional Road 25 Preliminary Design and Class Environmental Assessment (EA) Study (W.O. 07-20024). Transportation Environmental Study Report. March 2013. URS Canada Ltd., 2013c: Noise Study report, Preliminary Design Services, Highway 401 Improvements – East of the Credit River to Trafalgar Road URS Canada Ltd., 2015: Highway 401 Bridge Rehabilitation/Replacement from Trafalgar Road westerly to Regional Road 25 Preliminary Design and Class EA Study G.W.P. 2188-10-00 and G.W.P. 2152-11-00. Preliminary Design Report.
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Appendix A
Consultation Materials
WCC
NOTICE OF STUDY COMMENCEMENT AND DESIGN AND CONSTRUCTION REPORT NO. 1 SUBMISSION HIGHWAY 401 EXPANSION PROJECT CREDIT RIVER TO REGIONAL ROAD 25
West Corridor Constructors (WCC) has been selected by the Ministry of Transportation (MTO) and Infrastructure Ontario to design, build and finance the Highway 401 Expansion Project (the Project). The Project is approximately 18 km long and is located within the western Greater Toronto Area (GTA), from east of the Credit River in Mississauga to west of Regional Road 25 in Milton. The Project includes widening the existing six-lane configuration to the following: • 12-lane Core-Collector system from the Credit River to Winston Churchill Boulevard; • 10-lanes from Winston Churchill Boulevard to the Highway 407 ETR/Highway 401 Interchange; • 12-lane Core-Collector system from the Highway 407 ETR/Highway 401 Interchange to James Snow Parkway; and • 10-lanes from the James Snow Parkway to Regional Road 25. The Project includes median High Occupancy Vehicle (HOV) lanes and modifications to existing infrastructure to accommodate the proposed widening, including 9 new, replaced or widened bridges, 5 bridge rehabilitations, retaining wall construction / rehabilitation and 7 culvert replacements, extensions or rehabilitations. This Project will also include supporting facilities and features such as drainage, lighting, signage, Advanced Traffic Management System and carpool lots. The Preliminary Design was previously completed and is documented in two Transportation Environmental Study Reports (TESRs) for the “Highway 401 Improvements from East of the Credit River to Trafalgar Road W.O. 07-20021, Preliminary Design and Class Environmental Assessment Study (May, 2013)” and the “Highway 401 Improvements from Trafalgar Road to Regional Road 25 Preliminary Design and Class Environmental Assessment Study, W.O. 07-20024 (March, 2013)”. The recommendations from the TESRs will be built upon as part of the Detail Design. THE PROCESS This Detail Design project is following the approved planning process for a Group ‘B’ project under the MTO Class EA for Provincial Transportation Facilities (2000), with the opportunity for public input throughout the Project. A Public Information Centre (PIC) will be held to allow the public an opportunity to review and comment on project details. Design and Construction Reports (DCRs) will be prepared to document the study process, design details, environmental impacts and mitigation measures, and a summary of consultation undertaken. The DCRs will each be available for a 30-day review period. Notices for the PIC and DCRs will be published in local newspapers, on the Project website (www.401expansion-mississauga- milton.ca) and distributed to the Project contact list. DCR NO. 1 WORKS DCR No. 1 has been prepared to document the design and construction process undertaken for the following works: Clearing and Grubbing along the entire Project corridor and replacement of the CN Rail Overhead Structure, the CP Rail Overhead Structure, and the Trafalgar Road Underpass Structure. DCR No. 1 documents the study process, design details, the environmental impacts and mitigation measures of these works, and the consultation conducted.
COMMENTS We are interested in hearing your comments regarding this Project and on DCR No. 1, which will be available for 30-day review period from August 22, 2019 to September 20, 2019. The report will be available on the Project website (www.401expansion- mississauga-milton.ca) and at the following locations during their regular hours of operation:
Highway 401 Expansion Ministry of Transportation, Central Peel Region, Clerk’s Division Project Office Region, Major Projects Office 10 Peel Centre Drive, Suite A and B, 2000 Argentia Road, Plaza 5, Suite 159 Sir William Hearst Avenue, 7th Floor, Brampton, ON L6T 4B9 500, Mississauga, ON L5N 2R7 Toronto, ON M3M 0B7 Halton Region, Clerk’s Town of Milton, Town Town of Halton Hills, City of Mississauga, Office Hall Clerk’s Department Office of the City Clerk 1151 Bronte Road, Oakville, 150 Mary Street, Milton, ON 1 Halton Hills Drive, Halton 300 City Centre Drive, ON L6M 3L1 L9T 6Z5 Hills, ON L7G 5G2 Mississauga, ON L5B 3C1
If you wish to submit comments on the DCR, obtain additional information, ask questions or sign up for the Project contact list please contact those listed below by email at [email protected], by phone at 1-888-619-1665 (24-hour), or via the Project website at www.401expansion-mississauga-milton.ca. Information collected will be used in accordance with the Freedom of Information and Protection of Privacy Act. With the exception of personal information, all comments will become part of the public record. If you have any accessibility requirements in order to participate in this Project, please contact one of the Project Team members listed below via email, phone or the Project website as listed above.
David Ellis, P.Eng., GSC Sarah Merriam, M.Sc. Ryan Bissonnette WCC Project Director WCC Environmental Manager WCC Communications Director Aecon Group Inc. Parsons Inc. Aecon Group Inc. 2000 Argentia Road, Plaza 5, Suite 2000 Argentia Road, Plaza 5, Suite 2000 Argentia Road, Plaza 5, Suite 500, Mississauga, ON L5N 2R7 500, Mississauga, ON L5N 2R7 500, Mississauga, ON L5N 2R7
Des renseignements sont disponibles en français en composant 1-888-619-1665. Avis de début d’étude et soumission du rapport de conception et de construction no 1 Projet d’expansion de l’autoroute 401 de la rivière Credit à la route régionale 25
Le ministère des Transports (MTO) et Infrastructure Ontario ont retenu les services de West Corridor Constructors (WCC) pour concevoir, construire et financer le projet d’expansion de l’autoroute 401 (le projet). Le projet est long d’environ 18 km et est situé dans l’ouest de la région du Grand Toronto, de l’est de la rivière Credit à Mississauga jusqu’à l’ouest de la route régionale 25 à Milton. Le projet comprend l’élargissement des six voies existantes pour obtenir ce qui suit : • 12 voies centrales et collectrices de la rivière Credit jusqu’au boulevard Winston Churchill; • 10 voies du boulevard Winston Churchill jusqu’à l’échangeur de l’autoroute express à péage 407 et de l’autoroute 401; • 12 voies centrales et collectrices de l’échangeur de l’autoroute express à péage 407 et de l’autoroute 401 jusqu’à la promenade James Snow; • 10 voies de la promenade James Snow jusqu’à la route régionale 25. Le projet comprend des voies médianes réservées aux véhicules multioccupants (VMO) et des modifications aux infrastructures existantes pour faciliter l’élargissement proposé, notamment neuf nouveaux ponts, remplacés ou élargis, la remise en état de sept ponts, la construction ou la remise en état d’un mur de soutènement et le remplacement, le prolongement ou la remise en état de sept ponceaux. Ce projet tiendra également compte des installations et fonctions connexes, comme le drainage, l’éclairage, la signalisation, le système avancé de gestion de la circulation et des parcs de stationnement incitatif. La conception préliminaire a déjà été effectuée et est documentée dans deux rapports d’étude environnementale sur les transports pour les projets suivants : Améliorations à l’autoroute 401 de l’est de la rivière Credit jusqu’à la rue Trafalgar W.O. 07-20021, Étude de conception détaillée et d’évaluation environnementale de portée générale (mai 2013) et Améliorations à l’autoroute 401 de la rue Trafalgar jusqu’à la route régionale 25, Étude de conception détaillée et d’évaluation environnementale de portée générale, W.O. 07-20024 (mars 2013). Les recommandations des rapports serviront à la conception détaillée. LE PROCESSUS Ce projet de conception détaillée respecte le processus de planification approuvé pour les projets de groupe B conformément à l’Évaluation environnementale de portée générale pour les routes provinciales (2000) du MTO et le public aura l’occasion de fournir des commentaires tout au long de l’étude. Un centre d’information aura lieu afin de permettre aux membres du public de consulter et de commenter les détails du projet. Des rapports de conception et de construction seront préparés pour documenter le processus de l’étude, les détails de la conception, les impacts environnementaux et les mesures d’atténuation, puis un sommaire de consultation sera réalisé. Ces rapports seront tous accessibles pour une période de 30 jours à des fins d’examen. Les avis concernant le centre d’information et les rapports de conception et de construction seront publiés dans les journaux locaux et sur le site Web du projet (www.401expansion-mississauga-milton.ca), et distribués aux personnes figurant sur la liste de distribution. RAPPORT DE CONCEPTION ET DE CONSTRUCTION No 1 SUR LES TRAVAUX Le rapport de conception et de construction no 1 a été préparé afin de documenter le processus de conception et de construction des travaux suivants : Déblaiement et défrichement le long du corridor du projet, ainsi que remplacement de la structure en hauteur du chemin de fer du CN, de la structure en hauteur du chemin de fer du CP et de la structure du passage inférieur de la rue Trafalgar. Le rapport no 1 documente le processus de l’étude, les détails de la conception, les impacts environnementaux et les mesures d’atténuation de ces travaux, ainsi que la consultation réalisée. COMMENTAIRES Nous voulons entendre vos commentaires concernant ce projet et le rapport de conception et de construction no 1, qui pourra être consulté pendant une période d’examen de 30 jours du 22 août au 20 septembre 2019. Le rapport sera accessible sur le site Web du projet (www.401expansion-mississauga-milton.ca) ainsi qu’aux emplacements suivants durant les heures d’ouverture normales :
Bureau du projet d’expansion de Ministère des Transports, région du Région de Peel, division de l’autoroute 401 Centre, Bureau des grands projets Clerk 2000, rue Argentia, plaza 5, bureau 500, 159, avenue Sir William Hearst, 7e étage, 10, rue Peel Centre, bureaux A et Mississauga (Ontario) L5N 2R7 Toronto (Ontario) M3M 0B7 B, Brampton (Ontario) L6T 4B9 Région de Halton, bureau Ville de Milton, Hôtel Ville de Halton Hills, Service Cité de Mississauga, du greffier de ville du greffier bureau du greffier 1151, rue Bronte, Oakville 150, rue Mary, Milton 1, rue Halton Hills, Halton Hills 300, rue City Centre, (Ontario) L6M 3L1 (Ontario) L9T 6Z5 (Ontario) L7G 5G2 Mississauga (Ontario) L5B 3C1 Si vous voulez formuler des commentaires sur le rapport de conception et de construction, obtenir des renseignements supplémentaires, poser des questions ou être inscrit sur la liste de distribution du projet, veuillez prendre contact avec l’une des personnes ci-dessous par courriel au [email protected], par téléphone au 1 888 619-1665 (24 heures), ou via le site Web du projet au www.401expansion-mississauga-milton.ca. L’information recueillie sera utilisée conformément à la Loi sur l’accès à l’information et la protection de la vie privée. Tous les commentaires, à l’exception des renseignements personnels, feront partie du dossier public. Si vous avez des exigences en matière d’accessibilité pour participer à ce projet, veuillez prendre contact avec l’un des membres de l’équipe du projet nommés ci-dessus par courriel, téléphone ou via le site Web du projet mentionné ci-dessus. David Ellis, ing., GSC Sarah Merriam, M.Sc. Ryan Bissonnette Directeur de projets à WCC Gestionnaire environnementale à WCC Directeur des communications à WCC Aecon Group Inc. Parsons Inc. Aecon Group Inc. 2000, rue Argentia, Plaza 5, 2000, rue Argentia, Plaza 5, 2000, rue Argentia, Plaza 5, bureau 500, Mississauga (Ontario) bureau 500, Mississauga (Ontario) bureau 500, Mississauga (Ontario) L5N 2R7 L5N 2R7 L5N 2R7
Des renseignements sont disponibles en français en composant le 1 888 619-1665. From: info To: info Subject: Highway 401 Expansion Project - Notice of Study Commencement and Design and Construction Report Date: Thursday, August 15, 2019 1:25:47 PM Attachments: H401 Notice of Study Commencement and DCR No 1_August 2019_En_Fr_Combined.pdf
Good Afternoon,
Please see attached the Notice of Study Commencement and Design and Construction Report No. 1 Submission for the Highway 401 Expansion Project. If you have any comments or questions, the Project Team can be contacted on the Project website (www.401expansion-mississauga-milton.ca), by email at [email protected], or by phone at 1-888-619-1665.
Sincerely, The Highway 401 Expansion Project Team
H401 Expansion Project ‐ Stakeholder Contact List.xlsx
Stakeholder Type Name Title
GOVERNMENTAL AUTHORITIES Provincial Agencies Manager of Systems Planning and Strategic Policy at Metrolinx Provincial Agency Lisa Salsberg Metrolinx Metrolinx (GO Transit) Provincial Agency Malcolm Mackay Metrolinx (GO Transit) Provincial Agency Steven Wolf Metrolinx (GO Transit) Provincial Agency Ian McNeil Metrolinx (GO Transit) Provincial Agency Jamie Robinson Director, Community Relations and Communications GO Transit Provincial Agency Mike Wolczyk Rail Operations
Ministry of Environment, Conservation & Parks ‐ MECP Provincial Agency Tina Dufresne EA Coordinator Manager
Ministry of Environment, Conservation & Parks ‐ MECP Provincial Agency Aurora McAllister Management Biologist OMNRF Aurora District
Ministry of Environment, Conservation & Parks ‐ MECP Provincial Agency Annamaria Cross EA and Permissions Manager
Ministry of Environment, Conservation & Parks ‐ MECP Provincial Agency Solange Desautels EA and Permissions Supervisor
Ministry of Environment, Conservation & Parks ‐ MECP Provincial Agency Gavin Battarino Special Project Officer EA Coordinator‐Air, Pesticides and Environmental Ministry of Environment, Conservation & Parks ‐ MECP Provincial Agency Trevor Bell Planning Ministry of Natural Resources & Forestry Provincial Agency Brad Allan Aurora District Manager
Ministry of Natural Resources & Forestry Provincial Agency Mark Heaton Management Biologist Museum and Heritage Programs Advisor (East, Ministry of Tourism, Culture and Sport (MTCS) Provincial Agency Elka Weinstein Northeast) ‐ Programs & Services Branch Ministry of Tourism, Culture and Sport (MTCS) Provincial Agency Karla Barboza Team Lead ‐ Heritage (A) | Heritage Planning Unit
Ministry of Tourism, Culture and Sport (MTCS) Provincial Agency Dan Minkin Team Lead ‐ Heritage Planning Unit
Ministry of Tourism, Culture and Sport (MTCS) Provincial Agency Rosi Zirger Heritage Advisor (A) ‐ Heritage Planning Unit Mark Christie Manager, Community Planning and Development Ministry of Municipal Affairs and Housing Provincial Agency Minister's Office Communications Branch Community Planning and Development Ministry of Municipal Affairs and Housing Provincial Agency Julie O’Driscoll Minister's Office Communications Branch Community Planning and Development Ministry of Municipal Affairs and Housing Provincial Agency Conrad Spezowka Minister's Office Communications Branch Ministry of Municipal Affairs and Housing Provincial Agency Barbara Konyi Project Manager
Ministry of Agriculture, Food & Rural Affairs Provincial Agency Bianca Jamieson Communications Branch
Ministry of Indigenous Affairs Provincial Agency Kaisha Bruetsch Director, Indigenous Affairs
Ministry of Indigenous Affairs Provincial Agency Brayden Akers Director, Communications
Ministry of Indigenous Affairs Provincial Agency Flavia Mussio Communications Branch Minister’s Office Ministry of Energy, Northern Development and Mines Provincial Agency Sydney Stonier Communications Branch Minister’s Office Ministry of Energy, Northern Development and Mines Provincial Agency Natasha Demetriades Communications Branch Federal Agencies
Department of Fisheries and Oceans Federal Agency Fishery Protection Program H401 Expansion Project ‐ Stakeholder Contact List.xlsx
Stakeholder Type Name Title
Department of Fisheries and Oceans Federal Agency Sara Eddy Senior Fisheries Protection Biologist
Eileen Waechter / Director, Corporate Relations and Strategic Partnerships Greater Toronto Airports Authority Federal Agency Terminal One/Terminal Three at Greater Toronto Airports Authority / Customer Service
Transport Canada, Navigation Protections Program Federal Agency MUNICIPALITIES Manager, Capital Engineering and Construction Halton Region Municipality Cathy Robertson Engineering & Construction Public Works Halton Region ‐ Main Contact Municipality Tricia Holden ‐ MAIN CONTACT Manager, Development Support and Information
Halton Region Municipality Tim Skrins Supervisor of Permits
Halton Region Municipality Bob Wicklund Project Manager, Transportation Services
Halton Region Municipality Joseph Ng Senior Project Advisor
Halton Region Municipality Jeffrey Reid Senior Transportation Planner
Halton Region Municipality Melissa Green‐Battiston Manager, Infrastructure Planning Public Works Infrastructure Planning / Transportation Halton Region Municipality Matt Krusto Planning Halton Region Municipality Ruilan Gu Senior Project Advisor
Halton Region Municipality David Collum Project Manager
Halton Region Municipality Lindsay Di Tomasso Communications Advisor
Halton Region Municipality Heather Anderson Manager, Corporate Communications
Halton Region Municipality Bob Wicklund Manager of Transportation
Halton Region Municipality Nathan Stewart Supervisor, Road Operations & Maitenance
Halton Region Municipality Access Halton Regional Services Information Wastewater Capital ‐ Condition Assessment and Region of Peel ‐ Main Contact Municipality Frank Pugliese ‐ MAIN CONTACT Rehabilitation Director, Public Works Transportation Division, Region of Region of Peel Municipality Gary Kocialek Peel Region of Peel Municipality Ajay Puri
Region of Peel Municipality Serguei Kabanov Roads
Region of Peel Municipality Nicholas Gan
Region of Peel Municipality Lyle LeDrew
Region of Peel Municipality Kieran Scott Communication Specialist (Public Works)
Region of Peel Municipality Maria Anderson Communications Specialist
Town of Halton Hills ‐ Main Contact Municipality Maureen Van Ravens ‐ MAIN CONTACT Manager of Transportation
Town of Halton Hills Municipality Alexandra Fuller Manager of Corporate Communications
Town of Halton Hills Municipality Matt Roj Traffic Coordinator
Town of Halton Hills Municipality Bill Andrews Director of Engineering H401 Expansion Project ‐ Stakeholder Contact List.xlsx
Stakeholder Type Name Title
Town of Halton Hills Municipality Jeff Jelsma Manager of Development Engineering
Town of Halton Hills Municipality Suzy Mackie Communications Specialist
Town of Halton Hills Municipality Dick Spear Superintendent of Public Works
Town of Halton Hills Municipality Craig Nicolucci Senior Public Works Supervisor
Town of Milton Municipality Paul Cripps Commissoner, Engineering Services, Milton ON
Town of Milton ‐ Main Contact Municipality Rachel Ellerman ‐ MAIN CONTACT Drainage
Town of Milton Municipality Diana Jiona 8th Line Cul‐de‐Sac works
Town of Milton Municipality Communications
Town of Milton Municipality Jessica Rabaey Communications and Marketing Advisor
Town of Milton ‐ Traffic Municipality Heidi Schlegl Traffic Manager
Town of Milton ‐ Traffic Municipality Josip Kafadar Traffic Technician
Town of Milton ‐ Milton Transit Municipality Tony D'Alessandro Transit Manager
City of Mississauga ‐ One Point of Contact Municipality Gino Dela Cruz ‐ MAIN/ ONE POINT OF CONTACT Transportation Project Engineer
Conservation Halton Municipality Jonathan Pounder Coordinator, Environmental Planning
Conservation Halton Municipality Heather Dearlove
Conservation Halton Municipality Lesley Matich
Conservation Halton Municipality Sabrina Fischer‐Patterson
Credit Valley Conservation ‐ CVC Municipality Liam Marray Senior Planner / Ecologist
Credit Valley Conservation ‐ CVC Municipality Rizwan Haq
Source Water Protection ‐ Peel Region Municipality Therese Estephan Advisor – Source Water Protection Water & Wastewater Treatment ‐ Water Treatment Source Water Protection ‐ Halton Municipality Farrow Kathleen Operator Water & Wastewater System Services Systems Education Source Water Protection ‐ Halton Municipality McAlpine Sims, Kathy and Outreach Specialist Elected Officials MPP ‐ Members of Provincial Parliament
MPP‐Mississauga—Malton Elected Official Deepak Anand MPP‐Mississauga—Streetsville Elected Official Nina Tangri MPP‐Milton Elected Official Parm Gill MPP‐Wellington ‐ Halton Hills Elected Official Ted Arnott MP ‐ Federal Members of Parliament
MP‐Mississauga ‐Streetville Elected Official Gagan Sikand MP‐Mississauga ‐ Malton Elected Official Navdeep Bains MP ‐ Milton Elected Official Lisa Raitt H401 Expansion Project ‐ Stakeholder Contact List.xlsx
Stakeholder Type Name Title
MP‐Wellington ‐ Halton Hills Elected Official Michael Chong Clerk's Office ‐Local Councillor
Clerk's Office Mississauga Elected Official Clerk's office Clerk's office Town of Milton Elected Official Troy McHarg, Town Clerk Clerk's office Town of Halton Hills Elected Official Suzanne Jones Clerk and Director of Legislative Services Town of Milton ‐ Mayor Elected Official Gordon Krantz Mayor and Regional Councillor Town of Milton ‐ Councillor Elected Official Colin Best Regional Councillor Ward 1 Town of Milton ‐ Councillor Elected Official Kristina Tesser Derksen Town Councillor Ward 1 Town of Milton ‐ Councillor Elected Official Rick Malboeuf Regional Councillor Ward 2 Town of Milton ‐ Councillor Elected Official John Challinor II Town Councillor Ward 2 City of Mississauga ‐ Mayor Elected Official Bonnie Crombie Mayor City of Mississauga ‐ Councillor Elected Official Pat Saito Ward 9 City of Mississauga ‐ Councillor Elected Official Sue McFadden Ward 10 City of Mississauga ‐ Councillor Elected Official George Carlson Ward 11 Town of Halton Hills ‐ Mayor Elected Official Rick Bonnette Mayor Town of Halton Hills ‐ Councillor Elected Official Clark A. Somerville Regional Councillor Wards 1&2 Town of Halton Hills ‐ Councillor Elected Official Ted Brown Ward 2 Councillor Town of Halton Hills ‐ Councillor Elected Official Bryan Lewis Ward 2Councillor UTILITY COMPANY
Alectra Utilities Utilities Chris Kafel
Alectra Utilities Utilities Maxwell Watters
Alectra Utilities Utilities Joel Lacombe
Bell Canada Utilities Chris Gill
Bell Canada Utilities Jameel Syed
Bell Canada Utilities Brian Elbe
City of Mississauga Utilities Thomas Nightingale Storm Drainage Coordinator Manager, Stormwater Assets and Programming City of City of Mississauga Utilities Jeff Smylie Mississauga Cogeco Cable Utilities Daniella Policelli
Cogeco Cable Utilities Osmond Ashley Cogeco Cable Utilities Umar Muzaffar Enbridge Gas Distribution Inc. Utilities Meetpal Chhina
Group Telecom / Bell 360 Utilities Gillian Birch H401 Expansion Project ‐ Stakeholder Contact List.xlsx
Stakeholder Type Name Title
Halton Hills Hydro Utilities Chris Hale Engineering Supervisor
Halton Region Utilities Phil Antonio Hydro One Networks Inc. Utilities Rick Schatz Hydro One Telecom Utilities Bryan Brennan Hydro One Utilities Joan Zhao Senior Real Estate Coordinator Milton Hydro Utilities Linda Lundstrom‐Collins PSN Fibre Utilities Neha Canjar Region of Peel Utilities Jeanne Thomsen Rogers Utilities Kurt Ritchie Civil Specialist ‐ FSC Civil Ontario Rogers Utilities Bien Bengco Town of Halton Hills Utilities Steve Grace Town of Milton Utilities John Brophy TransCanada Pipelines Ltd. Utilities Darlene Presley Union Gas Utilities Dave Gadbois Zayo Utilities Peter Gregoire RAILWAY
Canadian National Rail Railway Michael Vallins Canadian National Rail Railway Derek Basso Canadian Pacific Rail Railway Brian Costigan Engineer in Training Canadian Pacific Rail Railway Li‐lian Lui Hatch, Project Manager School Boards
Student Transportation of Peel Region ‐ STOPR Other Tom Howe Manager Student Transportation of Peel Region ‐ STOPR Halton Student Transportation Services ‐ HSTS Other Karen Lacroix General Manager Halton Student Transportation Services ‐ HSTS Other Sandra Morgan Transportation Manager Peel District School Board Other Peter Joshua Director's office Halton Catholic Distric School Board Other Patrick Daly Director's Office
Halton District School Board Other Marnie Denton Manager, Communication Services Dufferin Peel Catholic District School Board Other Stephanie Cox Manager of Planning Peel District School Board Other Carla Pereira Director of Communications & Communicty Relations Indigenous Communities
Six Nations of the Grand River Territory Ava Hill Chief Mississauga of the Credit First Nation R. Stacey Laforme Chief H401 Expansion Project ‐ Stakeholder Contact List.xlsx
Stakeholder Type Name Title
Mississauga of the Credit First Nation Fawn Sault Consultation Manager Haudenosaunee Confederacy Chiefs Council Hazel Hill Director OTHER Manager, Highway Engineering Services Highway 407 407ETR Other Jeff Booker ETR 407ETR Other Dragan Mrkela Engineering Technician ‐ Highway Engineering Services
407ETR Other Craig White VP of Highway Operations and Tolling
407ETR Other Gary Munshaw
407ETR Other Shakir Hussein
407ETR Other Desmond Chan Transportation Planner
407ETR Other Maria Efimova VP, Marketing, Communications & Government 407ETR Kevin Sack Relations Other Executive Director Transportation Management Associations (TMAs) ‐ Region of Peel ‐ Glenn Gumulka Mississauga, Bramptom, Halton Other Program Manager Jagoda Rozbicka Ontario Trucking Association Public Interest Group
Ontario Dump Truck Association Public Interest Group
Credit River Anglers Association Public Interest Group President
Halton North Peel Naturalist Club Public Interest Group
Halton Environmental Network Public Interest Group
Churchill Meadows Residents Association Public Interest Group
Izaak Walton Fly Fishing Club Public Interest Group Communications
Meadowvale Village Community Association Public Interest Group Interim Director
Milton Green Public Interest Group Communications Committee
The Bruce Trail Conservancy Public Interest Group Chief Executive Officer:
South Peel Naturalists Club Public Interest Group
Friends of the Greenbelt Foundation Public Interest Group Office of the CEO / Program Director
Heritage Mississauga Public Interest Group
The Heritage Foundation of Halton Hills Public Interest Group
Dufferin point of contact (contract 2015‐2018) to coordinate works at the east Other
AMC Contractor (EMCON) Other Dave Matheson AMC Contractor (EMCON)
AMC Contractor (EMCON) Other Brendan Skirrow AMC Contractor (EMCON) Emergency Services H401 Expansion Project ‐ Stakeholder Contact List.xlsx
Stakeholder Type Name Title
EMS Paramedic Services EMS Public Health EMS Public works EMS Peel Regional Police Service EMS Ontario Provincial Police EMS Peel Regional Paramedic Services EMS City of Brampton Fire and Emergency Services REM ‐ Regional Emergency Management ‐ Region of Peel EMS City of Mississauga Fire and Emergency Services EMS City of Brampton Emergency Measures Office City of Mississauga Emergency Management, Fire and EMS Emergency Services EMS Peel Amateur Radio EMS Mississauga Amateur Radio Club EMS Canadian Red Cross EMS St. John Ambulance Halton Emergency Management ‐ Halton Regional Centre EMS Ralph Blauel Chief, Emergency Management City of Mississauga, Fire and Emergency Services EMS Tim Beckett Fire Chief ‐ Headquarters 15 Fairview Road West
Halton Region Paramedic Services EMS General Email
Peel Region Paramedic Services EMS Peter Dundas Chief and Director Paramedic Services Peel Regional Police EMS Offficer in Charge Superintendent, 11 Division OPP ‐ Ontario Provintial Police EMS Detachment Commander ‐ Milton Luis Mendoza Detachment Commander OPP ‐ Ontario Provincial Police EMS Steve Grosjean HSDPortCreditDetachment Detachment Commander OPP ‐ Ontario Provincial Police EMS Doug Fenske HSD Burlington Detachment OPP ‐ Ontario Provincial Police EMS Sean Cole Port Credit Detachment
OPP ‐ Ontario Provincial Police EMS Kevin Morgan Chief Stephen Tanner ‐ Detachment Commander ‐ 1 Halton Regional PoliceEMS Chief of Police District Milton (12 Division) Halton Regional Police EMS Paul Rudall Sergeant, District Response Unit (Traffic Milton/HH)
Halton Hills Fire Department EMS Harry Olivieri Commissioner and Chief
Halton Hills Fire Department EMS Bruce Morrison Deputy Chief Operations
Milton Fire Department EMS David Krantz Deputy Chief ‐ Operations
Halton Region EMS EMS Deputy Chief, Operations
Mississauga Fire EMS
Peel Ambulance EMS H401 Expansion Project ‐ Stakeholder Contact List.xlsx
Stakeholder Type Name Title
Peel EMS EMS
Transit EMS Business ‐ Representatives Groups
Mississauga Board of Trade Public Interest Group Vice President, Government and Stakeholder Relations
Halton Hills Chamber of Commerce Public Interest Group Chair of the Board
Halton Hills Chamber of Commerce Public Interest Group General Manager
Milton Chamber of Commerce Public Interest Group President & CEO
Milton Chamber of Commerce Public Interest Group Marketing & Communications Coordinator Private Stakeholders (Business owners/residents near the Project)
Toronto Premium Outlets Other Vice President, Corporate Affairs
Toronto Premium Outlets Other
Toronto Premium Outlets Other Highway 401 Expansion Project Credit River to Regional Road 25
Design and Construction Report No. 1
August 2019
Appendix B
General Arrangement Drawings for DCR No. 1 Structures
WCC
Highway 401 Expansion Project Credit River to Regional Road 25
Design and Construction Report No. 1
August 2019
Appendix C
Existing ELC Communities
WCC
° 9 10 7 11 ° 6 8 12 13 14 5 1 2 3 4 © OpenStreetMap (and) contributors, CC-BY-SA Legend
Highway 401 Expansion Right-of-Way (The Lands) Ecological Land Classification (ELC) CUM1 - Mineral Cultural Meadow Ecosite CUT1 - Mineral Cultural Thicket Ecosite CUT1-4 - Gray Dogwood Cultural Thicket Type FOD2-2 - Dry-Fresh Oak-Hickory Deciduous Forest Type
CUM1
CUT1-4
CUT1-4
FOD2-2 CUM1 CUT1
CUM1
0 50 100 200 300 Meters
Existing ELC within Project Limits
Datum: NAD 1983 MTM 10 Aug 2019 1:5,050 Source: MNRF, MTO, AECOM, * when printed 11"x17" Satellite Image: ESRI, 2013-2016
Map 1 of 14 Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community ° 9 10 7 11 ° 6 8 12 13 14 5 1 2 3 4 © OpenStreetMap (and) contributors, CC-BY-SA Legend
Highway 401 Expansion Right-of-Way (The Lands) Ecological Land Classification (ELC) CUW1 - Mineral Cultural Woodland Ecosite
CUW1
0 50 100 200 300 Meters
Existing ELC within Project Limits
Datum: NAD 1983 MTM 10 Aug 2019 1:5,050 Source: MNRF, MTO, AECOM, * when printed 11"x17" Satellite Image: ESRI, 2013-2016
Map 2 of 14 Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community ° 9 10 7 11 ° 6 8 12 13 14 5 1 2 3 4 © OpenStreetMap (and) contributors, CC-BY-SA Legend
Highway 401 Expansion Right-of-Way (The Lands)
0 50 100 200 300 Meters
Existing ELC within Project Limits
Datum: NAD 1983 MTM 10 Aug 2019 1:5,050 Source: MNRF, MTO, AECOM, * when printed 11"x17" Satellite Image: ESRI, 2013-2016
Map 3 of 14 Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community ° 9 10 ° 7 11 6 8 12 13 14 5 1 2 3 4 © OpenStreetMap (and) contributors, CC-BY-SA Legend
Highway 401 Expansion Right-of-Way (The Lands)
0 50 100 200 300 Meters
Existing ELC within Project Limits
Datum: NAD 1983 MTM 10 Aug 2019 1:5,050 Source: MNRF, MTO, AECOM, * when printed 11"x17" Satellite Image: ESRI, 2013-2016
Map 4 of 14 Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community ° 9 10 ° 7 11 6 8 12 13 14 5 1 2 3 4 © OpenStreetMap (and) contributors, CC-BY-SA Legend
Highway 401 Expansion Right-of-Way (The Lands) Ecological Land Classification (ELC) CUM1 - Mineral Cultural Meadow Ecosite CUT1 - M ineral Cultural Thicket Ecosite
FOD 4 - Dry-Fresh Deciduous Forest Ecosite FOD 7-4 - Fresh-Moist Black Walnut Lowland D eciduous Forest Type FOD 8-1 - Fresh-Moist Poplar Deciduous F orest Type MAM 2-2/CUM 1 - Reed Canary Grass Mineral Meadow Marsh Type / Mineral Cultural M eadow Ecosite
FOD7-4 CUM1 FOD7-4
FOD4 CUT1 FOD8-1
MAM2-2/CUM1
0 50 100 200 300 Meters
Existing ELC within Project Limits
Datum: NAD 1983 MTM 10 Aug 2019 1:5,050 Source: MNRF, MTO, AECOM, * when printed 11"x17" Satellite Image: ESRI, 2013-2016
Map 5 of 14 Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community ° 9 10 ° 7 11 6 8 12 13 14 5 1 2 3 4 © OpenStreetMap (and) contributors, CC-BY-SA Legend
Highway 401 Expansion Right-of-Way (The Lands) Ecological Land Classification (ELC) CUM1 - Mineral Cultural Meadow Ecosite CUT1 - Mineral Cultural Thicket Ecosite CUW1 - Mineral Cultural Woodland Ecosite FOD7 - Fresh-Moist Lowland Deciduous Forest Ecosite FOD8-1 - Fresh-Moist Poplar Deciduous Forest Type MAS2-1 - Cattail Mineral Shallow Marsh Ecosite Mitigation Lands
CUM1
CUT1
FOD8-1
MAS2-1 CUW1
CUM1 FOD7 CUT1
CUM1
CUW1 CUM1
CUT1 CUM1
0 50 100 200 300 Meters
Existing ELC within Project Limits
Datum: NAD 1983 MTM 10 Aug 2019 1:5,050 Source: MNRF, MTO, AECOM, * when printed 11"x17" Satellite Image: ESRI, 2013-2016
Map 6 of 14 Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community ° 9 10 ° 7 11 6 8 12 13 14 5 1 2 3 4 © OpenStreetMap (and) contributors, CC-BY-SA Legend
Highway 401 Expansion Right-of-Way (The Lands) Ecological Land Classification (ELC) CUM1 - Mineral Cultural Meadow Ecosite CUT1 - Mineral Cultural Thicket Ecosite CUW1 - Mineral Cultural Woodland Ecosite FOD2-4 - Dry-Fresh Oak-Hardwood Deciduous Forest Type FOD7 - Fresh-Moist Lowland Deciduous Forest Ecosite MAS2-1 - Cattail Mineral Shallow Marsh Ecosite Mitigation Lands
MAS2-1 CUW1 FOD2-4
FOD7 CUM1 CUW1
CUM1
CUM1
CUT1 CUM1 CUT1
0 50 100 200 300 Meters
Existing ELC within Project Limits
Datum: NAD 1983 MTM 10 Aug 2019 1:5,050 Source: MNRF, MTO, AECOM, * when printed 11"x17" Satellite Image: ESRI, 2013-2016
Map 7 of 14 Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community ° 9 10 7 11 6 8 12 13 14 5 ° 1 2 3 4 © OpenStreetMap (and) contributors, CC-BY-SA Legend
Highway 401 Expansion Right-of-Way (The Lands) Ecological Land Classification (ELC) CUM1 - Mineral Cultural Meadow Ecosite MAS2-1 - Cattail Mineral Shallow Marsh Ecosite OAO - Open Aquatic
OAO
MAS2-1 CUM1
0 50 100 200 300 Meters
Existing ELC within Project Limits
Datum: NAD 1983 MTM 10 Aug 2019 1:5,050 Source: MNRF, MTO, AECOM, * when printed 11"x17" Satellite Image: ESRI, 2013-2016
Map 8 of 14 Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community ° 9 10 ° 7 11 6 8 12 13 14 5 1 2 3 4 © OpenStreetMap (and) contributors, CC-BY-SA Legend
Highway 401 Expansion Right-of-Way (The Lands) Ecological Land Classification (ELC) CUM1 - Mineral Cultural Meadow Ecosite MAS2-1 - Cattail Mineral Shallow Marsh Ecosite OAO - Open Aquatic
MAS2-1 CUM1 CUM1 MAS2-1 OAO
OAO
0 50 100 200 300 Meters
Existing ELC within Project Limits
Datum: NAD 1983 MTM 10 Aug 2019 1:5,050 Source: MNRF, MTO, AECOM, * when printed 11"x17" Satellite Image: ESRI, 2013-2016
Map 9 of 14 Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community ° 9 10 7 11 ° 6 8 12 13 14 5 1 2 3 4 © OpenStreetMap (and) contributors, CC-BY-SA Legend
Highway 401 Expansion Right-of-Way (The Lands) Ecological Land Classification (ELC) CUM1 - Mineral Cultural Meadow Ecosite MAS2 - Mineral Shallow Marsh Ecosite MAS2-1 - Cattail Mineral Shallow Marsh Ecosite OAO - Open Aquatic
MAS2-1 CUM1 CUM1
OAO
CUM1
MAS2 CUM1
0 50 100 200 300 Meters
Existing ELC within Project Limits
Datum: NAD 1983 MTM 10 Aug 2019 1:5,050 Source: MNRF, MTO, AECOM, * when printed 11"x17" Satellite Image: ESRI, 2013-2016
Map 10 of 14 Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community ° 9 10 7 11 6 8 12 13 14 ° 5 1 2 3 4 © OpenStreetMap (and) contributors, CC-BY-SA Legend
Highway 401 Expansion Right-of-Way (The Lands) Ecological Land Classification (ELC) CUM1 - Mineral Cultural Meadow Ecosite FOD6-1 - Fresh-Moist Sugar Maple-Lowland Ash Deciduous Forest Type FOD9 - Fresh-Moist Oak-Maple-Hickory Deciduous Forest Ecosite
FOD9 CUM1
FOD6-1
0 50 100 200 300 Meters
Existing ELC within Project Limits
Datum: NAD 1983 MTM 10 Aug 2019 1:5,050 Source: MNRF, MTO, AECOM, * when printed 11"x17" Satellite Image: ESRI, 2013-2016
Map 11 of 14 Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community ° 9 10 7 11 ° 6 8 12 13 14 5 1 2 3 4 © OpenStreetMap (and) contributors, CC-BY-SA Legend
Highway 401 Expansion Right-of-Way (The Lands) Ecological Land Classification (ELC) FOD5-1 - Dry-Fresh Sugar Maple Deciduous Forest Type MAS2-1 - Cattail Mineral Shallow Marsh Ecosite
FOD5-1
MAS2-1
MAS2-1
0 50 100 200 300 Meters
Existing ELC within Project Limits
Datum: NAD 1983 MTM 10 Aug 2019 1:5,050 Source: MNRF, MTO, AECOM, * when printed 11"x17" Satellite Image: ESRI, 2013-2016
Map 12 of 14 Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community ° 9 10 7 11 ° 6 8 12 13 14 5 1 2 3 4 © OpenStreetMap (and) contributors, CC-BY-SA Legend
Highway 401 Expansion Right-of-Way (The Lands) Ecological Land Classification (ELC) CUM1-1 - Dry-Moist Old Field Meadow Type CUW1 - Mineral Cultural Woodland Ecosite
CUW1 CUM1-1 CUW1
0 50 100 200 300 Meters
Existing ELC within Project Limits
Datum: NAD 1983 MTM 10 Aug 2019 1:5,050 Source: MNRF, MTO, AECOM, * when printed 11"x17" Satellite Image: ESRI, 2013-2016
Map 13 of 14 Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community ° 9 10 7 11 ° 6 8 12 13 14 5 1 2 3 4 © OpenStreetMap (and) contributors, CC-BY-SA Legend
Highway 401 Expansion Right-of-Way (The Lands)
0 50 100 200 300 Meters
Existing ELC within Project Limits
Datum: NAD 1983 MTM 10 Aug 2019 1:5,050 Source: MNRF, MTO, AECOM, * when printed 11"x17" Satellite Image: ESRI, 2013-2016
Map 14 of 14 Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community Highway 401 Expansion Project Credit River to Regional Road 25
Design and Construction Report No. 1
August 2019
Appendix D
Tables of Environmental Concerns and Commitments from Preliminary Design
WCC
Highway 401 Improvements from East of the Credit River to Trafalgar, Preliminary Design and Class Environmental Assessment Study, W.O. 07-20021 (May 2013) Table 9-8: Summary of Environmental Concerns, Mitigating Measures and Commitments to Future Work
Legend DFO: Fisheries and Oceans Canada MUN: Municipalities MNR: Ministry of Natural Resources (now known as Ministry of RES / BUS: Area residents and/or businesses Natural Resources and Forestry (MNRF)) MTO: Ministry of Transportation UTIL: Utilities CA: Conservation Authority MTCS: Ministry of Tourism, Culture and Sport MOE: Ministry of the Environment (now known as Ministry of CPR: Canadian Pacific Railway Environment, Conservation, and Parks (MECP))
Note: The below is presented exactly as written in the TESR, except for column ‘Commitment Addressed in DCR #1 Detail Design’
Environmental Ref Concerned Mitigation / Commitment to Future Work Commitment Considered and Addressed in DCR No. Concern and ID No. No. Agencies 1 Detail Design? Potential impact 1 Fisheries and DFO 1.1 Operate and store all materials and equipment in such a manner that prevents any deleterious substance Yes, and carried forward to Detail Design Mitigation and Aquatic Habitat MNR from entering the water Commitments MTO (Bridge CA 1.2 Incorporate appropriate timing constraints to ensure work avoids critical life stages: Partially addressed due to updated existing conditions replacement / • All culvert crossings within the study area will require all in-water construction (i.e. removal of the and timing windows (Section 5.1.3). Detail Design widening and existing bridge piers) to be completed during the warmwater window of July 1 to warmwater Mitigation and Commitments are included in DCR No. 1 culvert extensions, window of July 1 to March 31; and for Clearing and Grubbing near watercourses. No in- Mullet Creek • The Credit River bridge crossing will require all in-water construction to be completed during the water or near water work associated with the DCR No. 1 realignment) warmwater / coldwater window of July 1 to September 15 accommodate the coldwater migratory structures. Future DCR(s) will also address this species present. commitment for in-water works.
1.3 Consider construction staging such that spills and leaks into the watercourse will be avoided or minimized Yes, and carried forward to Detail Design Mitigation and Commitments
1.4 Apply standard Erosion and Sediment Control (ESC) measures (e.g. silt fence, silt curtain, sedimentation Yes, and carried forward to Detail Design Mitigation and basins, etc.) consistent with MTO Best Management Practices and Ontario Provincial Standards and Commitments. Specifications (OPSS) to ensure no effects to the surface waters. The control measures shall be implemented prior to work and shall be maintained during construction and until disturbed areas have been effectively stabilized with permanent vegetation cover 1.5 Minimize the disturbance or removal of riparian vegetation Yes, and carried forward to Detail Design Mitigation and Commitments 1.6 Promptly stabilize and re-vegetated all disturbed areas of the work site, and/or treat the area with Yes, and carried forward to Detail Design Mitigation and appropriate erosion protection materials. In riparian and aquatic habitats, all temporarily disturbed areas Commitments. will be reinstated to original condition, or better, upon completion of works 1.7 Store and stabilize any stockpiled materials away from the water Yes, and carried forward to Detail Design Mitigation and Commitments.
Highway 401 Improvements from East of the Credit River to Trafalgar, Preliminary Design and Class Environmental Assessment Study, W.O. 07-20021 (May 2013) Table 9-8: Summary of Environmental Concerns, Mitigating Measures and Commitments to Future Work
Environmental Ref Concerned Mitigation / Commitment to Future Work Commitment Considered and Addressed in DCR No. Concern and ID No. No. Agencies 1 Detail Design? Potential impact 1.8 Design crossings to minimize loss of functional channel bed and maintain groundwater discharge Not Applicable for DCR No. 1 but will be addressed in subsequent DCR(s) 1.9 Integrate deeper water habitat into any inlet or outlet treatments Not Applicable for DCR No. 1 but will be addressed in subsequent DCR(s) 1.10 Isolate work area to facilitate work in “the dry” Not Applicable for DCR No. 1 but will be addressed in subsequent DCR(s) 1.11 Capture any fish trapped within the isolated construction area and release them downstream of the site Not Applicable for DCR No. 1 but will be addressed in subsequent DCR(s) 1.12 Any stockpiled materials shall be stored and stabilized at least 30 m away from the watercourse. A single Yes, and carried forward to Detail Design Mitigation and row of silt fencing (double row in the event that SAR are present) will be installed along the down slope Commitments perimeter to prevent the mobilization of the stockpile. 1.13 Any equipment entering the water shall be free of fluid leaks and externally cleaned or degreased to Not Applicable for DCR No. 1 but will be addressed in prevent contamination of the water. subsequent DCR(s) 1.14 Mitigation Measures for Dewatering Activities: Not Applicable for DCR No. 1 but will be addressed in Dewatering activities where fish are present will include fish removal subsequent DCR(s)
1.15 Pumps shall be fitted with screens or barriers to effectively prevent fish entrainment during dewatering Not Applicable for DCR No. 1 but will be addressed in subsequent DCR(s) 1.16 All stranded fish are to be captured and relocated to adjacent channels sections outside the work area Not Applicable for DCR No. 1 but will be addressed in subsequent DCR(s) 1.17 Silt laden discharge water from dewatering activities will be directed away from the watercourse in such a Partially. Discharge from groundwater dewatering for the way as to minimize sedimentation. The discharge outlets will be located a minimum of 30 m from a DCR No. 1 structures discussed in Section 5.1.7. watercourse and within a vegetated area. The discharge drainage must not flow through the construction site. Filter rings and filter bags may be utilized for the outflow. 1.18 The discharge from the dewatering will be monitored to ensure changes to the flow path or scour does not Yes, Monitoring discussed in Section 7.2. develop and result in sediment entering any watercourse. 1.19 Works at Mullet Creek (north side between Highway 401 and Derry Road) Not Applicable for DCR No. 1 but will be addressed in • Armoring the side slopes / banks to avoid impacts to the creek and floodplain are proposed to subsequent DCR(s) mitigate the need for channel realignment; and • In the event that creek realignment is required, a fluvial assessment as well as an assessment of impacts to fish and fish habitat shall be undertaken during detail design. 2 Erosion and MOE 2.1 Install temporary ESC measures (i.e. silt fences) prior to construction and maintain throughout Yes, and additional Detail Design Mitigation and Sediment MNR construction, as required Commitments carried forward MTO 2.2 Install flow checks and ground stabilization as necessary Yes, and additional Detail Design Mitigation and (Potential impacts MUN Commitments carried forward to watercourses include short-term 2.3 Routinely inspect ESC structures, including after storms, and repair as required Yes, and additional Detail Design Mitigation and Commitments carried forward
Highway 401 Improvements from East of the Credit River to Trafalgar, Preliminary Design and Class Environmental Assessment Study, W.O. 07-20021 (May 2013) Table 9-8: Summary of Environmental Concerns, Mitigating Measures and Commitments to Future Work
Environmental Ref Concerned Mitigation / Commitment to Future Work Commitment Considered and Addressed in DCR No. Concern and ID No. No. Agencies 1 Detail Design? Potential impact water quality 2.4 All ESC measures shall be monitored by a qualified environmental inspector. Inspections are to be Yes, and additional Detail Design Mitigation and deterioration) conducted during in water construction activities until the site is stabilized and until the silt fencing is Commitments carried forward removed 2.5 All exposed soils shall be treated with appropriate erosion protection to prevent sediment laden water Yes, and additional Detail Design Mitigation and from entering any water body. Commitments carried forward 3 Groundwater MOE 3.1 The following mitigation measures are proposed to manage the potential impacts: Yes, baseline well monitoring completed. Groundwater MNR A pre-construction water well survey shall be conducted to document the baseline conditions of water Monitoring Program carried forward to Detail Design MTO wells within the study area Mitigation and Commitments. MUN 3.2 Any wells to be removed during the highway improvement activities will have to be decommissioned Yes, and carried forward to Detail Design Mitigation and properly as per the Ontario Wells Regulation (R.R.O. 1990, Reg. 903) Commitments.
3.3 Limit the depth of excavation and minimize the need for dewatering during construction, particularly in Yes, considered and addressed for DCR No. 1 areas designated as having a high potential for groundwater impact (i.e. where creeks and their tributaries structures. cross Highway 401) 3.4 If dewatering is required, dewatering activities shall be conducted in accordance with approved control Yes. This commitment was updated to include additional procedures; a Permit to Take Water must be obtained from MOE if the amount of water taken exceeds 50 procedures and regulations and carried forward to Detail m3/day; Design Mitigation and Commitments.
3.5 Minimize disturbance to existing vegetation and grassed slopes where re-grading is required (disturbed Yes, addressed under other environmental factors and areas shall be re-vegetated as quickly as possible after completion of construction activities) carried forward to Detail Design Mitigation and Commitments.
3.6 Implement stormwater management measures to protect water quality that may infiltrate groundwater Not Applicable for DCR No. 1 but will be addressed in resources subsequent DCR(s)
3.7 Prepare and implement a spill prevention and control management plan Yes, and carried forward to Detail Design Mitigation and Commitments.
3.8 Follow best management practices for road de-icing applications Yes, and carried forward to Detail Design Mitigation and Commitments as applicable for WCC’s construction work zone.
4 Drainage and MNR 4.1 Use of enhanced grass swales (flat bottom ditches and V-shaped ditches); Not Applicable for DCR No. 1 but will be addressed in Hydrology MTO subsequent DCR(s) CA MUN 4.2 Use of existing SWMPs at the Highway 401 / 407ETR interchange where practical Not Applicable for DCR No. 1 but will be addressed in subsequent DCR(s)
Highway 401 Improvements from East of the Credit River to Trafalgar, Preliminary Design and Class Environmental Assessment Study, W.O. 07-20021 (May 2013) Table 9-8: Summary of Environmental Concerns, Mitigating Measures and Commitments to Future Work
Environmental Ref Concerned Mitigation / Commitment to Future Work Commitment Considered and Addressed in DCR No. Concern and ID No. No. Agencies 1 Detail Design? Potential impact 4.3 Implement on-site SWM controls for the expanded/ improved and proposed carpool lots. Not Applicable for DCR No. 1 but will be addressed in subsequent DCR(s)
5 Terrestrial MNR 5.1 Forests and woodlots will be delineated and marked in the field, and disturbance to these areas will be Yes, and additional Detail Design Mitigation and Ecosystems MTO minimized or avoided during construction Commitments carried forward MUN (Removal of edge CA 5.2 Where tree or vegetation protection is required, exclusion zones will be delineated with appropriate Yes, and additional Detail Design Mitigation and vegetation within fencing prior to construction works. Tree exclusion zones will consider sensitive species and set dripline Commitments carried forward forest communities boundaries appropriately as required and ornamental 5.3 Temporarily disturbed areas (i.e. those to be graded) will be restored and restoration seeding / planting Not Applicable for DCR No. 1 but will be addressed in vegetation / will include appropriate native species subsequent DCR(s). hedgerows) Detail Design Mitigation and Commitment for Landscape and Restoration Plan included in Section 5.1.6.
5.4 Vegetation clearing will be kept to a minimum necessary to access and complete the approved design. Yes, and carried forward to Detail Design Mitigation and Tree removal and vegetation clearing adjacent to the drainage features will consist of cutting of woody Commitments. vegetation and leaving roots left in place (no grubbing) where possible 5.5 All disturbed areas of the work site shall be stabilized and re-vegetated promptly, and/or treated with Yes, and carried forward to Detail Design Mitigation and appropriate erosion protection materials. In riparian and aquatic habitats, all temporarily disturbed areas Commitments. will be reinstated to original condition, or better, upon completion of works 5.6 Native seed mix will be used to stabilize exposed soils. Seed restoration that is to occur late in the Not Applicable for DCR No. 1 but will be addressed in growing season may include a nurse crop. subsequent DCR(s).
Detail Design Mitigation and Commitment for Landscape and Restoration Plan included in Section 5.1.6.
5.7 Conduct vegetation removal and protection measures in accordance with OPSS 201 (tree clearing) and Yes, and carried forward to Detail Design Mitigation and OPSS 565 (tree protection) Commitments.
5.8 In the event that wildlife encountered during construction does not move from the construction zone, the Yes, updated and carried forward to Detail Design Contract Administrator will be notified Mitigation and Commitments.
5.9 Implement environmental inspection during construction to make sure that protection measures are Yes, Monitoring described in Section 7.2 implemented, maintained and repaired and to make sure remedial measures are implemented where warranted 5.10 Landscaping will be considered to protect / enhance roadside vegetated areas. A landscaping plan will be Not Applicable for DCR No. 1 but will be addressed in developed during detail design, which will include consideration of snow hedge requirements subsequent DCR(s).
Highway 401 Improvements from East of the Credit River to Trafalgar, Preliminary Design and Class Environmental Assessment Study, W.O. 07-20021 (May 2013) Table 9-8: Summary of Environmental Concerns, Mitigating Measures and Commitments to Future Work
Environmental Ref Concerned Mitigation / Commitment to Future Work Commitment Considered and Addressed in DCR No. Concern and ID No. No. Agencies 1 Detail Design? Potential impact Detail Design Mitigation and Commitment for Landscape and Restoration Plan included in Section 5.1.6.
5.11 All migratory bird species and their nests are protected under the Migratory Bird Convention Act (MBCA Yes, and breeding bird timing windows updated in the 1994) and therefore, vegetation clearing efforts must be avoided during their breeding season (April 15 to Detail Design Commitments and Mitigation Measures. July 15). The songbird breeding season extends from mid-May until late July.
5.12 Vegetation removal (including trees, shrubs and grasslands) will be undertaken through the late summer, Yes, and breeding bird timing windows updated in the fall and winter months (where possible) to avoid disrupting any species during their nesting season Detail Design Commitments and Mitigation Measures. (MBCA 1994; Fish and Wildlife Coordination Act 1997). If removal of vegetation must occur during the Nest searches also included in Detail Design breeding season, an extensive nest search of the area to be affected must be done to ensure that no Commitments and Mitigation. birds or their nests are destroyed during construction 6 Wildlife MNR 6.1 Suitable substrate (ground cover) will be provided under the Credit River bridge to accommodate deer Not Applicable for DCR No. 1 but will be addressed in MTO passage. subsequent DCR(s) CA 7 Species at Risk MTO 7.1 In order to avoid adverse effects to the Barn Swallow and its habitat, mitigation measures for the Barn Yes, and breeding bird timing windows updated, and MNR Swallow will be applied, including adhering to breeding bird season restrictions. Additional consultation mitigation related to nesting on structures included in the CA with MNR will be undertaken during detail design to discuss potential permitting requirements under the Detail Design Commitments and Mitigation Measures. ESA; 7.2 Snapping Turtle currently does not have habitat protection under Ontario’s ESA. Efforts will be made to Yes, Species of Special Concern addressed in wildlife avoid any inadvertent injury to this species. encounter mitigation in Section 5.1.2. 7.3 Monarch Butterflies prefer open grasslands with abundant milkweed. It is considered a specially Yes, vegetation removals have been minimized protected invertebrate under the FWCA 1997 and efforts will be made to avoid any inadvertent injury to this species 7.4 Additional SAR screening will be required by the Contractor prior to commencement of works to confirm Yes. Existing conditions, impacts and anticipated that there are no SAR in the work area as wildlife SAR can move into an area at any given time. approvals updated (Section 5.1.4.2). Bat SAR are Consultation with MNR will be undertaken during detail design to ensure that any newly regulated SAR present in the lands and Detail Design Mitigation and potentially interacting with construction activities are considered and the need for approvals under the Commitments are included in DCR No. 1 for Clearing Endangered Species Act will be confirmed at that time and Grubbing. Consultation with MECP ongoing. SAR wildlife encounters addressed in Section 5.1.2. 8 Property Impacts MTO 8.1 Efforts have been made, where appropriate at key locations, to minimize the extent of additional property n/a – all property required for the proposed works have Impacted that is required to accommodate the proposed highway improvements by including retaining walls, curb already been obtained by MTO prior to Detail Design. Property and gutter and other measures in the Recommended Plan. Owners 8.2 The construction works will temporarily affect access for the farm operation that owns and farms the lands Access will be maintained / accommodated for DCR No. MUN on each side of Highway 401 east of Credit River. Further consultation with this land owner / farm 1 works and will be addressed in future DCRs. operator will be undertaken during detail design regarding the specific design treatments for the crossing and construction details.
Highway 401 Improvements from East of the Credit River to Trafalgar, Preliminary Design and Class Environmental Assessment Study, W.O. 07-20021 (May 2013) Table 9-8: Summary of Environmental Concerns, Mitigating Measures and Commitments to Future Work
Environmental Ref Concerned Mitigation / Commitment to Future Work Commitment Considered and Addressed in DCR No. Concern and ID No. No. Agencies 1 Detail Design? Potential impact 8.3 MTO will negotiate the transfer of all necessary properties prior to construction. Affected owners will be Completed by MTO prior to Detail Design. Discussed in consulted when the property plans are being finalized. Potentially impacted property owners were DCR 1 Section 5.5.4. contacted as part of this study. Compensation will be based on fair market value of properties required. 9 Waste MTO 9.1 A Preliminary Site Screening (PSS) will be undertaken for properties required to accommodate the Completed prior to Detail Design. Management and MOE proposed improvements to this section of the Highway 401 corridor Contamination 9.2 Phase I Environmental Site Assessments will be required on the selected industrial / commercial Yes, additional waste and contamination investigations properties required for the proposed highway improvements completed. Discussed in DCR No. 1 Section 5.5.3. As required, additional Detail Design Mitigation and Commitments carried forward. 9.3 If highway improvement work (i.e. excavation) is conducted in the vicinity of the spill locations, special Yes, updated and carried forward to Detail Design attention shall be paid to the soil and groundwater in the area for any visual evidence of contamination Mitigation and Commitments. (i.e. discoloration, odour or free product); if visual evidence of contamination is noted, further investigation work of the soil and/or groundwater quality in the area will be required. 9.4 In addition, should any contaminated materials be encountered during the undertaking, caution will be Yes, and carried forward to Detail Design Mitigation and exercised while handling and disposing of contaminated materials. Excess materials will be managed in Commitments. accordance with standard MTO practices (as governed by OPSS 180). 10 Air Quality MTO 10.1 Construction related dust and other emissions will be addressed through diligent implementation Best Yes, and carried forward to Detail Design Mitigation and MOE Management Practices (standard operating procedures) such as application of dust suppressants, Commitments. RES / BUS reduced travel speeds for heavy vehicles, efficient staging of activities and minimization of haul distances, covering stockpiles, etc. 11 Noise During MTO 11.1 During construction, the Contractor will be required to: Works on provincial highways are not subject to the Construction MOE municipal Noise By-law provisions for construction RES / BUS Abide by any municipal noise control by-laws activities within provincial highway rights-of-way. WCC will obtain municipal Noise By-law exemptions and abide by municipal noise control By-laws for work outside of the highway right of way. 11.2 Keep idling of construction equipment to a minimum Yes, and carried forward to Detail Design Mitigation and Commitments. 11.3 Maintain equipment in good working order to reduce noise from construction activities Yes, and carried forward to Detail Design Mitigation and Commitments. 11.4 Be available to address any concerns that may arise with respect to noise during construction Yes, and carried forward to Detail Design Mitigation and Commitments. 11.5 Complaints will be investigated according to the provisions of the MTO Environmental Guide for Noise Yes, and carried forward to Detail Design Mitigation and (October 2006). Any initial complaint from the public requires verification by MTO that the general noise Commitments. control measures agreed to are in effect. If not, MTO will advise the Contractor of any problems and enforce its contract. 12 Sidewalks and MTO 12.1 MTO will explore municipal requests for construction of sidewalks and bicycle lanes on selected Yes, addressed for the Trafalgar Road Underpass Bicycle Lanes on MUN structures (subject to municipal funding) during detail design. Structure. Refer to Section 4.4. Not applicable for the CP Structures Rail Overhead Structure.
Highway 401 Improvements from East of the Credit River to Trafalgar, Preliminary Design and Class Environmental Assessment Study, W.O. 07-20021 (May 2013) Table 9-8: Summary of Environmental Concerns, Mitigating Measures and Commitments to Future Work
Environmental Ref Concerned Mitigation / Commitment to Future Work Commitment Considered and Addressed in DCR No. Concern and ID No. No. Agencies 1 Detail Design? Potential impact 13 Utilities MTO 13.1 All potentially affected utility companies will be contacted to develop a utility relocation plan prior to Yes, discussed in Section 4.6. UTIL construction during detail design. Furthermore, all utility relocations will be completed before construction of this project is initiated. If it is necessary to complete utility relocations during construction, the Contractor will be required to coordinate the timing of each operation to ensure that they are carried out independently. Special provisions will be included in the contract during detail design to address this, and to ensure that care and precautions are taken to safeguard existing utilities from damage. 14 Archaeological MTO 15.1 Should the proposed improvements to Highway 401 result in the encroachment upon previously Yes, and carried forward to Detail Design Mitigation and MTCS undisturbed lands determined to have archaeological site potential, a Stage 2 Archaeological Assessment Commitments should be conducted in accordance with MTCS’ Standards and Guidelines for Consultant Archaeologists (2011) prior to any land disturbing activities. The purpose of this work would be to identify and assess any archaeological remains that may be present 15.2 No additional archaeological assessment is required within the remainder of the study area, and those Yes, and carried forward to Detail Design Mitigation and areas that do not exhibit archaeological site potential may be considered clear of further archaeological Commitments concern. No grading or other activities that may result in the destruction or disturbance of an archaeological site are permitted until notice of MTCS approval has been received 15.3 Should deeply buried archaeological remains be found during construction activities, the Heritage Yes, updated and carried forward to Detail Design Operations Unit, MTCS will be notified immediately. In the event that human remains are encountered Mitigation and Commitments during construction, the Contractor / MTO will immediately contact both MTCS and the Registrar or Deputy Registrar of the Cemeteries Regulation Unit, Ontario Ministry of Government Services. 15 Heritage MTO 16.1 The proposed ROW encroaches the Cowin Farm and as such, a Cultural Heritage Evaluation Report Yes. Additional assessment undertaken. Existing Resources MTCS (CHER) will be prepared during detail design to determine the specific values of the farm residence and conditions and impacts described in Section 5.6.2 and MUN other buildings within the Cowin Farm’s landscape setting. Detail Design Mitigation and Commitments have been updated. 16 Aboriginal MTO 17.1 Continued consultation and interaction with identified Aboriginal Communities / organizations during detail Yes, and will continue throughout the Project. Refer to Community Aboriginal design. Section 3.2.8. Consultation Communities 17 Traffic Disruption MUN 18.1 A preliminary construction staging plan has been developed as part of this study and will be refined during Yes. For DCR No. 1 works, described in Section 4. and Construction MTO a future detail design study. Staging 18 CP Rail MTO 19.1 Agreements regarding the proposed bridge design will be sought with CP Rail during detail design. Yes, refer to Section 5.5.4 and Section 6. (bridge CP Rail replacement) 19 Navigable Waters MTO 20.1 The provisions of the NWPA apply to the Credit River for the bridge replacement / widening. An No approval or permit is required for Credit River under Protection Act Transport application under the NWPA will be prepared and approval will be sought during detail design. the Navigation Protection Act, 1985, as it is not on the Canada List of Scheduled Waters. Navigation will be maintained.
Highway 401 Improvements from Trafalgar Road to Regional Road 25 Preliminary Design and Class Environmental Assessment Study, W.O. 07-20024” (March, 2013)
Table 9-5: Summary of Environmental Concerns, Mitigating Measures and Commitments to Future Work
Legend DFO: Fisheries and Oceans Canada MUN: Municipalities MNR: Ministry of Natural Resources (now known as Ministry of RES / BUS: Area residents and/or businesses Natural Resources and Forestry (MNRF)) MTO: Ministry of Transportation UTIL: Utilities CA: Conservation Authority MTCS: Ministry of Tourism, Culture and Sport MOE: Ministry of the Environment (now known as Ministry of CNR: Canadian National Railway Environment, Conservation, and Parks (MECP))
Note: The below is presented exactly as written in the TESR, except for column ‘Commitment Addressed in DCR #1 Detail Design’
Environmental Ref Commitment Considered and Addressed in DCR No. Concern and Concerned ID No. Mitigation / Commitment to Future Work No. 1 Detail Design? Potential impact Agencies
1 Fisheries and DFO 1.1 All materials and equipment used shall be operated and stored in such a manner that prevents any Yes, and carried forward to Detail Design Mitigation and Aquatic Habitat MNR deleterious substance from entering the water Commitments. MTO 1.2 Consider construction staging such that spills and leaks into the watercourse will be avoided or minimized Yes, and carried forward to Detail Design Mitigation and (Bridge CA Commitments. replacement / widening and 1.3 Apply standard Erosion and Sediment Control (ESC) measures (e.g., silt fence, silt curtain, sedimentation Yes, and carried forward to Detail Design Mitigation and culvert extensions basins, etc.) consistent with Ontario Provincial Standards and Specifications (OPSS) to ensure no effects to Commitments. for Lower Middle, the surface waters. The control measures shall be implemented prior to work and be maintained during Middle, Middle construction and until disturbed areas have been effectively stabilized with permanent vegetation cover East and East Branches of 1.4 All disturbed areas of the work site shall be stabilized and re-vegetated promptly, and/or treated with Yes, and carried forward to Detail Design Mitigation and Sixteen Mile appropriate erosion protection materials. In riparian and aquatic habitats, all temporarily disturbed areas will Commitments. Creek and be reinstated to original condition, or better, upon completion of works associated 1.5 Minimize the disturbance or removal of riparian vegetation (MNR, 2010) Yes, and carried forward to Detail Design Mitigation and tributaries, Hornby Commitments. Creek realignment) 1.6 Any stockpiled materials shall be stored and stabilized away from the water Yes, and carried forward to Detail Design Mitigation and Commitments. 1.7 Opportunities for enhancing shading of the watercourse by planting native species in areas of overhanging / Carried forward to Detail Design Mitigation and riparian vegetation loss will be examined during detail design Commitments, to be addressed in future DCR(s). 1.8 Construction timing considerations will be required for each of the crossings which entail inwater works or Partially addressed due to updated existing conditions working within 30 m of the meander belt. The majority of the crossings are listed as warmwater Low and timing windows (Section 5.1.3). Detail Design sensitivity fish habitat, with the exception of drainage systems C-1D, C-11A, and crossings B-03 and B-02, Mitigation and Commitments are included in DCR No. 1 which are listed as High sensitivity, and Crossings C-17, C-16, B-01 and B-02 which are listed as Moderate for Clearing and Grubbing near watercourses. No in- sensitivities. water or near water work associated with the DCR No. 1
Highway 401 Improvements from Trafalgar Road to Regional Road 25 Preliminary Design and Class Environmental Assessment Study, W.O. 07-20024” (March, 2013)
Table 9-5: Summary of Environmental Concerns, Mitigating Measures and Commitments to Future Work
Environmental Ref Commitment Considered and Addressed in DCR No. Concern and Concerned ID No. Mitigation / Commitment to Future Work No. 1 Detail Design? Potential impact Agencies
- The warmwater systems require that all inwater construction will be completed from July 1 to March structures. Future DCR(s) will also address this 31. To take advantage of typical dryer weather and lower water levels, opportunities to complete commitment for in-water works. these works by October 31 will be examined. - The coldwater systems containing Brook Trout (High sensitivity) require a construction period from June 1 to September 30. 1.9 Hornby Creek Channel Realignment Not Applicable for DCR No. 1 but will be addressed in • The watercourse at C-11A is classified as warmwater, however, the presence of young of the year rainbow subsequent DCR(s). trout suggest the watercourse should be managed for migratory salmonids and hence have a construction Horny Creek realignment is not included in the scope of period of June 16 to March 14 work for DCR No. 1 and as such does not discuss potential impacts, mitigation measures and commitments for vegetation in the Hornby Creek realignment area. 1.10 The project works entail realignment of approximately 230 m of channel. The realignment works will follow Not Applicable for DCR No. 1 but will be addressed in the principles of natural channel design to be used during the detail design phase of the project subsequent DCR(s) 1.11 The channel realignment will be conducted in “the dry” and utilize standard ESC measures. In-water works Not Applicable for DCR No. 1 but will be addressed in will follow the more restrictive warm and coldwater timing windows in order to minimize impacts to the subsequent DCR(s) fisheries. The realignment will result in a channel providing more stable banks and potential reduction in sedimentation, and hence net improvement at the site. 1.12 Incorporate habitat diversity into the final design (i.e., bank diversity of plantings and substrate placement Not Applicable for DCR No. 1 but will be addressed in associated with any scour protection requirements) subsequent DCR(s) 1.13 Crossings are designed to minimize loss of functional channel bed and maintain groundwater discharge Not Applicable for DCR No. 1 but will be addressed in (open footed culvert, spanning structure) subsequent DCR(s) 1.14 Consider integrating deeper water habitat into any inlet or outlet treatments, and incorporate overhead cover Not Applicable for DCR No. 1 but will be addressed in into channel designs subsequent DCR(s) 1.15 Using appropriate techniques, capture any fish trapped within the construction area and release them Not Applicable for DCR No. 1 but will be addressed in downstream of the site subsequent DCR(s)
1.16 Maintenance measures are not to interfere with fish passage; Not Applicable for DCR No. 1 but will be addressed in subsequent DCR(s) 1.17 Consider installing water treatment catchment basins at sources with potentially higher contaminants Not Applicable for DCR No. 1 but will be addressed in subsequent DCR(s) 1.18 Review the option to direct highway drainage to the channel (following SWM treatment) to assist in periodic Not Applicable for DCR No. 1 but will be addressed in flow augmentation to downstream areas subsequent DCR(s) 1.19 The proposed realignment of Hornby Creek may require a DFO authorization. No HADD / HADD forms will Not Applicable for DCR No. 1 but will be addressed in be submitted to DFO during the detail design stage of this project subsequent DCR(s)
Highway 401 Improvements from Trafalgar Road to Regional Road 25 Preliminary Design and Class Environmental Assessment Study, W.O. 07-20024” (March, 2013)
Table 9-5: Summary of Environmental Concerns, Mitigating Measures and Commitments to Future Work
Environmental Ref Commitment Considered and Addressed in DCR No. Concern and Concerned ID No. Mitigation / Commitment to Future Work No. 1 Detail Design? Potential impact Agencies
2 Erosion and MOE 2.1 Install temporary Erosion and Sediment Control (ESC) measures (i.e. silt fences) prior to construction and Yes, and additional Detail Design Mitigation and Sediment MNR maintain throughout construction, as required Commitments carried forward. (Potential impacts MTO to watercourses MUN include short-term 2.2 Install flow checks and ground stabilization as necessary Yes, and additional Detail Design Mitigation and water quality Commitments carried forward deterioration) 2.3 Routinely inspect ESC structures, including after storms, and repair as required Yes, and additional Detail Design Mitigation and Commitments carried forward 3 Groundwater MOE 3.1 Minimize the need for dewatering during construction, particularly in areas designated as having a high Yes, and carried forward to Detail Design Mitigation and MNR potential for groundwater impact Commitments. MTO MUN 3.2 Conduct dewatering activities in accordance with approved control procedures Yes. This commitment was updated to include additional procedures and regulations and carried forward to Detail Design Mitigation and Commitments.
3.3 Minimize disturbance to existing vegetation and grassed slopes where re-grading is required (disturbed Yes, addressed under other environmental factors and areas should be re-vegetated as quickly as possible after completion of construction activities); carried forward to Detail Design Mitigation and Commitments.
3.4 Prepare and implement a SWM plan and include spill prevention and control measures in the contract Partially. Spill prevention addressed and carried forward documents (to be determined in detail design) to Detail Design Mitigation and Commitments. SWM Plan to be addressed in subsequent DCR(s).
3.5 Undertake an existing well monitoring program, including the monitoring of potentially affected wells by Yes, baseline well monitoring completed. Groundwater highway construction or blasting, prior to, during and after the construction / blasting activities (to be Monitoring Program carried forward to Detail Design determined in detail design) Mitigation and Commitments.
4 Drainage and MNR 4.1 Install smooth transitions at the upstream entrance and downstream of culverts Not Applicable for DCR No. 1 but will be addressed in Hydrology MTO subsequent DCR(s) CA MUN 4.2 During the detail design stage of this project, opportunities for minimizing the lengthening of culverts (i.e. C- Not Applicable for DCR No. 1 but will be addressed in 09, C-10, C-13 and C-18) by stabilizing the existing slopes and installing retaining and head walls and subsequent DCR(s) stabilized steeper slopes will be explored where applicable 4.3 A fluvial geomorphological assessment will be completed at the detail design stage of this project for Not Applicable for DCR No. 1 but will be addressed in realignment of Hornby Creek, if it is deemed necessary in detail design subsequent DCR(s)
Highway 401 Improvements from Trafalgar Road to Regional Road 25 Preliminary Design and Class Environmental Assessment Study, W.O. 07-20024” (March, 2013)
Table 9-5: Summary of Environmental Concerns, Mitigating Measures and Commitments to Future Work
Environmental Ref Commitment Considered and Addressed in DCR No. Concern and Concerned ID No. Mitigation / Commitment to Future Work No. 1 Detail Design? Potential impact Agencies
4.4 During subsequent design phases, SWM facilities will be designed to provide quality and quantity treatment Not Applicable for DCR No. 1 but will be addressed in to the extent possible subsequent DCR(s)
4.5 A hydrologic and hydrogeological assessment will be undertaken at the detail design stage of this project to Not Applicable for DCR No. 1 but will be addressed in evaluate any potential impact of SWM Pond 02 (south of Highway 401, west of Fifth Line) on the adjacent subsequent DCR(s) wetland feature located to the south 5 Terrestrial MNR 5.1 Re-stabilize and re-vegetate exposed surfaces as soon as possible, using vegetation seed mixes, where Yes, and additional Detail Design Mitigation and Ecosystems MTO feasible, and plantings, where possible Commitments carried forward MUN (Removal of edge CA 5.2 Clearly delineate Right-of-Way (ROW) vegetation clearing zones and vegetation retention zones on Yes, and additional Detail Design Mitigation and vegetation within construction drawings and confirm in the field with the Contractor prior to clearing and grading. Equipment, Commitments carried forward forest materials and other construction activities will not be permitted in these zones communities and ornamental 5.3 Conduct vegetation removal and protection measures in accordance with OPSS 201 (tree clearing) and Yes, and carried forward to Detail Design Mitigation and vegetation / OPSS 565 (tree protection). Vegetation that does not require removal for purposes of the construction will Commitments. hedgerows) be protected through the installation and maintenance of temporary vegetation protection measures (e.g. temporary fencing) 5.4 Cut and grubbed material may be disposed of through chipping. Wherever possible, wood chip material will Yes, carried forward to Detail Design Mitigation and be considered as part of any edge plantings to help retain soil moisture and prevent weed spread Commitments.
5.5 Although there is little likelihood of wildlife encounters, in the event that wildlife encountered during Yes, updated and carried forward to Detail Design construction does not move from the construction zone, the Contract Administrator will be notified Mitigation and Commitments.
5.6 Implement environmental inspection during construction to make sure that protection measures are Yes, Monitoring described in Section 7.2 implemented, maintained and repaired and to make sure remedial measures are implemented where warranted 5.7 Landscaping will be considered to protect / enhance roadside vegetated areas. A landscaping plan will be Not Applicable for DCR No. 1 but will be addressed in developed during detail design, which will include consideration of snow hedge requirements subsequent DCR(s).
Detail Design Mitigation and Commitment included in Section 5.1.6.
5.8 All migratory bird species and their nests are protected under the Migratory Bird Convention Act (MBCA Yes, and breeding bird timing windows updated in the 1994) and therefore, vegetation clearing efforts must be avoided during their breeding season (April 15 to Detail Design Commitments and Mitigation Measures July 15). The songbird breeding season extends from mid-May until late July (Cadman et al., 2007) 5.9 Opportunities to undertake vegetation removal (including trees, shrubs and grasslands) in the late summer, Yes, and breeding bird timing windows updated in the fall and winter months will be considered in the late summer, fall and winter months to avoid disrupting any Detail Design Commitments and Mitigation Measures. species during their nesting season (MBCA 1994; Fish and Wildlife Coordination Act 1997). If removal of
Highway 401 Improvements from Trafalgar Road to Regional Road 25 Preliminary Design and Class Environmental Assessment Study, W.O. 07-20024” (March, 2013)
Table 9-5: Summary of Environmental Concerns, Mitigating Measures and Commitments to Future Work
Environmental Ref Commitment Considered and Addressed in DCR No. Concern and Concerned ID No. Mitigation / Commitment to Future Work No. 1 Detail Design? Potential impact Agencies
vegetation must occur during the breeding season, a nest search of the area to be affected will be done to Nest searches also included in Detail Design ensure that no birds or their nests are destroyed during construction. Commitments and Mitigation
5.10 The Sixteen Mile Creek corridor is recognized as an important regional linkage for wildlife in the area in Yes, discussed in Section 5.1.2. Wildlife passage, addition to providing connection between various ecological functions. Efforts will be made to identify and fencing, and restoration design to be covered in avoid / protect critical components of wildlife habitat (e.g., vernal pools, migration staging areas, etc.). Where subsequent DCR(s). this is not possible the loss of vegetation will be minimized, particularly in edge habitat, and will be re- vegetated with native species after construction where appropriate 5.11 The Fresh-Moist Black Walnut Lowland Deciduous Forest area located immediately east of Sixth Line, is a Partially. Sixth Line will be relocated to the west of the provincially rare vegetation community. Potential project works involve impact on approximately 5,685 m2 of existing structure, minimizing impacts on the area east of this zone. Efforts will be made to relocate impacted Black Walnut trees where possible. A tree protection and Sixth Line. Efforts will be made to minimize impacts to the restoration plan will be developed during detail design. Relocation / realignment of the watercourse will be rare vegetation community. A Detail Design Mitigation undertaken in a manner which minimizes the number of trees impacted in this area. and Commitment was carried forward to minimize trees impacted by watercourse realignment. Relocation of black walnut not practicable due to the timing of construction activities and appropriate planting windows. Where feasible, Black Walnut will be included in the plantings as part of restoration efforts and will be addressed in future DCR(s). Hornby Creek Realignment and restoration to be addressed in future DCR(s).
5.12 Appropriate ESC methods will be implemented prior to the removal of vegetation near any watercourse. The Yes, and carried forward to Detail Design Mitigation and disturbance or removal of riparian vegetation will be minimized in order to maintain shading on the Commitments. watercourse and restoration plantings will include appropriate native species.
6 Species at Risk MTO 6.1 Chimney Swifts use chimneys in houses and other infrastructure for nesting. There are no plans to demolish n/a MNR buildings as part of Project activities; there are currently no anticipated effects to this Species at Risk (SAR) CA 6.2 Bobolinks prefer grassland habitat and nest on the ground. Vegetation clearing will be kept outside of the Yes, and breeding bird timing windows updated in the breeding bird season (April 15 to July 15) to address these potential effects. All areas will be surveyed for Detail Design Commitments and Mitigation Measures nests prior to any vegetation clearing (including trees, shrubs and grasslands) 6.3 Monarch Butterflies prefer open grasslands with abundant milkweed. It currently does not have habitat Yes, vegetation removals minimized. protection under Ontario’s ESA; however it is considered a specially protected invertebrate under the FWCA 1997 and efforts will be made to avoid any inadvertent injury to this species 6.4 The presence of Redside Dace and impacts to their habitat will be confirmed in consultation with MNR Partially addressed. Consultation with MECP ongoing. during detail design. The mitigation strategy to address impacts to Redside Dace will be consistent with the Existing conditions, impacts and anticipated approvals Guidance for Development Activities in Redside Dace Protected Habitat (February 2011) or other guidance updated (Section 5.1.4.1). Detail Design Mitigation and as provided by MNR. During detail design, additional consultation will be undertaken with MNR to develop Commitments included in DCR No. 1 for Clearing and the mitigation and watercourse enhancement strategy and to identify the need for ESA approvals Grubbing near Redside Dace watercourses. Redside
Highway 401 Improvements from Trafalgar Road to Regional Road 25 Preliminary Design and Class Environmental Assessment Study, W.O. 07-20024” (March, 2013)
Table 9-5: Summary of Environmental Concerns, Mitigating Measures and Commitments to Future Work
Environmental Ref Commitment Considered and Addressed in DCR No. Concern and Concerned ID No. Mitigation / Commitment to Future Work No. 1 Detail Design? Potential impact Agencies
. Dace watercourses not impacted by DCR No. 1 structures. Future DCR(s) will also address this commitment. 7 Property Impacts MTO 7.1 Efforts have been made to minimize property requirements. MTO will negotiate the transfer of all necessary n/a – all property required for the proposed works have Impacted properties prior to or during detail design. Affected owners will be consulted when the plans are being already been obtained by MTO prior to Detail Design. Property finalized. Compensation will be based on fair market value of properties required. Owners MUN 8 Waste MTO 8.1 Following MTO’s contaminated property process, a broad review of individual properties including a site visit Completed prior to Detail Design. Management and MOE and interview, and completion of Preliminary Site Screening Forms (PSSFs) is recommended (to be Contamination conducted in detail design) 8.2 Based on the industrial land use, it is expected that Phase I Environmental Site Assessments will be Yes, additional waste and contamination investigations required for selected industrial and/or commercial properties (to be determined during detail design). The completed. Discussed in DCR No. 1 Section 5.5.3. As need to conduct Phase II ESAs will be identified at that time required, additional Detail Design Mitigation and Commitments carried forward. 8.3 In addition, should any contaminated materials be encountered during the undertaking, caution will be Yes, and carried forward to Detail Design Mitigation and exercised while handling and disposing of contaminated materials. Excess materials will be managed in Commitments. accordance with standard MTO practices (as governed by OPSS 180).
9 Air Quality MTO 9.1 Opportunities for tree planting will be examined to reduce roadway particulate matter at nearby receptors Yes, and carried forward to Detail Design Mitigation and MOE during the detail design stage of this project. Commitments. To be addressed in subsequent DCR(s). RES / BUS 9.2 Construction related emissions will be addressed is through diligent implementation of best management Yes, and carried forward to Detail Design Mitigation and practices for operating procedures such as application of dust suppressants, reduced travel speeds for Commitments. heavy vehicles, efficient staging of activities and minimization of haul distances, covering stockpiles, etc.
10 Noise During MTO 10.1 During construction, the Contractor will be required to: Works on provincial highways are not subject to the Construction MOE Abide by any municipal noise control by-laws; municipal Noise By-law provisions for construction RES / BUS activities within provincial highway rights-of-way. WCC will obtain municipal Noise By-law exemptions and abide by municipal noise control By-laws for work outside of the highway right of way. 10.2 Keep idling of construction equipment to a minimum Yes, and carried forward to Detail Design Mitigation and Commitments. 10.3 Maintain equipment in good working order to reduce noise from construction activities Yes, and carried forward to Detail Design Mitigation and Commitments. 10.4 Be available to address any concerns that may arise with respect to noise during construction Yes, and carried forward to Detail Design Mitigation and Commitments.
Highway 401 Improvements from Trafalgar Road to Regional Road 25 Preliminary Design and Class Environmental Assessment Study, W.O. 07-20024” (March, 2013)
Table 9-5: Summary of Environmental Concerns, Mitigating Measures and Commitments to Future Work
Environmental Ref Commitment Considered and Addressed in DCR No. Concern and Concerned ID No. Mitigation / Commitment to Future Work No. 1 Detail Design? Potential impact Agencies
10.5 Furthermore, complaints will be investigated according to the provisions of the MTO Environmental Guide Yes, and carried forward to Detail Design Mitigation and for Noise (October 2006). Any initial complaint from the public requires verification by MTO that the general Commitments. noise control measures agreed to are in effect. If not, MTO will advise the Contractor of any problems, and enforce its contract. 11 Sidewalks and MTO 11.1 MTO will explore municipal requests for construction of sidewalks and bicycle lanes on selected structures n/a to CN Rail Structure Bicycle Lanes on MUN (subject to municipal funding) during detail design. Structures 12 Utilities MTO 12.1 All potentially affected utility companies will be contacted to develop a utility relocation plan prior to Yes, discussed in Section 4.6. UTIL construction during detail design. Furthermore, all utility relocations will be completed before construction of this project is initiated. If it is necessary to complete utility relocations during construction, the Contractor will be required to coordinate the timing of each operation to ensure that they are carried out independently. Special provisions will be included in the contract to address this, and to ensure that care and precautions are taken to safeguard existing utilities from damage. 13 Archaeological MTO 13.1 Should the proposed improvements to Highway 401 result in the encroachment upon previously undisturbed Yes, and carried forward to Detail Design Mitigation and MTCS lands determined to have archaeological site potential, a Stage 2 Archaeological Assessment will be Commitments conducted in accordance with MTCS’ Standards and Guidelines for Consultant Archaeologists (2011), prior to any land disturbing activities 13.2 No grading or other activities that may result in the destruction or disturbance of an archaeological site are Yes, and carried forward to Detail Design Mitigation and permitted until notice of MTCS approval has been received Commitments 13.3 Should deeply buried archaeological remains be found during construction activities, the Heritage Yes, updated and carried forward to Detail Design Operations Unit, MTCS will be notified immediately Mitigation and Commitments 13.4 In the event that human remains are encountered during construction, the proponent will immediately Yes. updated and carried forward to Detail Design contact both MTCS and the Registrar or Deputy Registrar of the Cemeteries Regulation Unit, Ministry of Mitigation and Commitments. Government Services, (416) 326-8392. The appropriate Police Services will also be advised of any discoveries.
14 Heritage MTO 14.1 During detail design a Heritage Impact Assessment (HIA) will be undertaken for two heritage properties Yes. Additional assessments undertaken. Existing Resources MTCS impacted by the proposed highway improvements (John Dolmage House, 7548 Trafalgar Road and Joseph conditions and impacts described in Section 5.6.2 and MUN Cunningham House, 7622 Fifth Line Road) to assess the specific details of the impacts to these heritage Detail Design Mitigation and Commitments have been resources and develop appropriate mitigation (i.e. replacement of vegetated hedgerows). updated. 15 Aboriginal MTO 15.1 Continued consultation and interaction with identified Aboriginal Communities during detail design Yes, and will continue throughout the Project. Refer to Community Aboriginal Section 3.2.8. Consultation Communiti es 16 Traffic MUN 16.1 A construction staging plan will be developed during detail design Yes, for DCR No. 1 works, described in Section 4. Disruption and MTO 16.2 The opportunity to maintain one of Fifth Line or Sixth Line open during construction of these bridge works Not Applicable for DCR No. 1 but will be addressed in will be investigated during detail design in consultation with municipalities subsequent DCR(S)
Highway 401 Improvements from Trafalgar Road to Regional Road 25 Preliminary Design and Class Environmental Assessment Study, W.O. 07-20024” (March, 2013)
Table 9-5: Summary of Environmental Concerns, Mitigating Measures and Commitments to Future Work
Environmental Ref Commitment Considered and Addressed in DCR No. Concern and Concerned ID No. Mitigation / Commitment to Future Work No. 1 Detail Design? Potential impact Agencies
Construction Staging 17 CN Rail MTO 17.1 Agreements regarding the proposed bridge design will be sought with CNR during detail design Yes, refer to Section 5.5.4 and Section 6. (bridge CN Rail replacement)