GO Rail Network Electrification TPAP FinalREVIEW Preliminary OF PARSONS PEnvironmentalROPOSAL TO UPGRADE Site TRACK Assessment CIRCUITS Gap Analysis Report - Rail Corridors For Prepared & Reviewed by: Gannett Fleming Project No. 060277 Metrolinx Electrification Project Contract No. QBS-2014-IEP-002 Prepared By: Morrison Hershfield 9/26/17 Rev. 2.0 i | P a g e Submittal Date: September 26, 2017 METROLINX GO RAIL NETWORK ELECTRIFICATION Quality Assurance Document Release Form Name of Firm: MORRISON HERSHFIELD Document Name: Preliminary Environmental Site Assessment Gap Analysis Report - Rail Corridors Revision No. 2 Submittal Date: September 26, 2017 Discipline: Preliminary Environmental Site Assessment Prepared By: Jonathan Kerr and Forest Pearson Date: July, 2016 Reviewed By: Leah Deveaux Date: October 14, 2016 Approved By: Amber Saltarelli Date: Sept, 2017 Project Manager The above electronic signatures indicate that the named document is controlled by Gannett Fleming Canada ULC, and has been: 1. Prepared by qualified staff in accordance with generally accepted professional practice. 2. Checked for completeness and accuracy by the appointed discipline reviewers and that the discipline reviewers did not perform the original work. 3. Reviewed and resolved compatibility interfaces and potential conflicts among the involved disciplines. 4. Updated to address previously agreed-to reviewer comments, including any remaining comments from previous internal or external reviews. 5. Reviewed for conformance to scope and other statutory and regulatory requirements. 6. Determined suitable for submittal by the Project Manager. Prepared By: Morrison Hershfield 9/26/17 Rev. 2.0 ii | P a g e REVISION HISTORY Revision Date Comments 1.0 December 2, 2016 Submission to Metrolinx 2.0 September 26, 2017 Final Report Version Prepared By: Morrison Hershfield 9/26/17 Rev. 2.0 iii | P a g e DISCLAIMER AND LIMITATION OF LIABILITY The report dated September, 2017 (“Report”), which includes its text, tables, figures and appendices) has been prepared by Morrison Hershfield Limited (“Morrison Hershfield”) under contract to Gannett Fleming Canada, ULC for the exclusive use of Metrolinx. Morrison Hershfield disclaims any liability or responsibility to any person or party other than Metrolinx for loss, damage, expense, fines, costs or penalties arising from or in connection with the Report or its use or reliance on any information, opinion, advice, conclusion or recommendation contained in it. To the extent permitted by law, Morrison Hershfield also excludes all implied or statutory warranties and conditions. 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Prepared By: Morrison Hershfield 9/26/17 Rev. 2.0 iv | P a g e GO Rail Network Electrification TPAP Final Preliminary Environmental Site Assessment Gap Analysis Report – Rail Corridors TABLE OF CONTENTS DISCLAIMER AND LIMITATION OF LIABILITY IV 1 BACKGROUND 1 1.1 ENVIRONMENTAL ASSESSMENT PROCESS 2 1.2 SCOPE OF THE PROJECT 2 1.3 STUDY AREA 2 GO RAIL CORRIDORS 3 TRACTION POWER FACILITY LOCATIONS 5 MODIFICATIONS TO WILLOWBROOK MAINTENANCE FACILITY AND EAST RAIL MAINTENANCE FACILITY 6 MODIFICATIONS TO EXISTING LAYOVER FACILITIES 6 MODIFIED MAINTENANCE FACILITIES 6 2 PURPOSE 7 3 SCOPE OF THE STUDY 7 3.1 OCS IMPACT ZONE 7 4 METHODOLOGY 8 5 REVIEW OF PREVIOUS ENVIRONMENTAL SITE ASSESSMENT (ESA) REPORTS 16 5.1 UNION STATION RAIL CORRIDOR 16 GAP ANALYSIS 16 AREAS OF PREVIOUSLY IDENTIFIED POTENTIAL CONTAMINATION 18 5.2 LAKESHORE WEST CORRIDOR 18 GAP ANALYSIS 20 AREAS OF PREVIOUSLY IDENTIFIED POTENTIAL CONTAMINATION 20 5.3 KITCHENER CORRIDOR 21 GAP ANALYSIS 23 AREAS OF PREVIOUSLY IDENTIFIED POTENTIAL CONTAMINATION 23 5.4 BARRIE CORRIDOR 23 GAP ANALYSIS 24 AREAS OF PREVIOUSLY IDENTIFIED POTENTIAL CONTAMINATION 24 5.5 STOUFFVILLE CORRIDOR 26 GAP ANALYSIS 26 AREAS OF PREVIOUSLY IDENTIFIED POTENTIAL CONTAMINATION 28 5.6 LAKESHORE EAST CORRIDOR 28 GAP ANALYSIS 29 AREAS OF PREVIOUSLY IDENTIFIED POTENTIAL CONTAMINATION 29 Prepared By: Morrison Hershfield 9/26/17 Rev. 2.0 v | P a g e GO Rail Network Electrification TPAP Final Preliminary Environmental Site Assessment Gap Analysis Report – Rail Corridors 6 SUMMARY OF FINDINGS AND FUTURE WORK 31 6.1 RECOMMENDATIONS FOR FUTURE WORK 31 List of Tables Table 4-1. Phase I/II or Other Contaminated Site Related Documents Reviewed ..................................... 10 List of Figures Figure 1-1. GO Transit Network .................................................................................................................... 1 Figure 1-2. GO Network Electrification TPAP Study Area ............................................................................. 3 Figure 1-3. Example of OCS Support Structures (Portals) ............................................................................. 4 Figure 5-1. Union Station Rail Corridor Gap Analysis Map ......................................................................... 17 Figure 5-2. Lakeshore West Corridor Gap Analysis Map ............................................................................ 19 Figure 5-3. Kitchener Corridor Gap Analysis Map ....................................................................................... 22 Figure 5-4. Barrie Corridor Gap Analysis Map ............................................................................................ 25 Figure 5-5. Stouffville Corridor Gap Analysis Map ...................................................................................... 27 Figure 5-6. Lakeshore East Corridor Gap Analysis Map .............................................................................. 30 Prepared By: Morrison Hershfield 9/26/17 Rev. 2.0 vi | P a g e GO Rail Network Electrification TPAP Final Preliminary Environmental Site Assessment Gap Analysis Report – Rail Corridors Glossary of Terms Word Definition 230 kV Aerial Overhead electrical high voltage connection line from the existing Hydro One tap to Connection the new TPS. AC The acronym for Alternating Current. It is an electric current in which the flow of electric charge periodically reverses direction, whereas in direct current (DC, also dc), the flow of electric charge is only in one direction. AFP The acronym for Alternative Financing and Procurement. An AFP model brings together private and public sector expertise in a unique structure that transfers the risk of project cost increases and scheduling delays typically associated with traditional project delivery. Area of Potential An area within the Study Area where one or more contaminants are potentially Environmental Concern present, as determined through the Contamination Overview Study including (APEC) identification of past or present land uses of concern and/or identification of a Potentially Contaminating Activity (PCA). AREMA The acronym for American Railway Engineering and Maintenance-of-Way Association. AREMA is the organization that represents the engineering function of the North American railroads. Autotransformer Apparatus which helps boost the overhead contact system (OCS) voltage and reduce the running rail return current in the 2 X 25 kV autotransformer feed configuration. It is a single winding transformer having three terminals. The intermediate terminal located at the midpoint of the winding is connected to the rail and the static wires, and the other two terminals are connected to the catenary and the negative feeder wires, respectively. Best Practices Professional procedures that are accepted or