York Region - Dufferin Street Class Environmental Assessment Study Environmental Study Report - May 2019 Appendix I: Contamination Overview Report H353430, Rev. 0 Page 198 © Hatch 2019 All rights reserved, including all rights relating to the use of this document or its contents. THIS PAGE LEFT BLANK FOR PRINTING PURPOSES Terraprobe Consulting Geotechnical & Environmental Engineering Construction Materials Inspection & Testing CONTAMINATION OVERVIEW STUDY DUFFERIN STREET FROM LANGSTAFF ROAD TO TESTON ROAD VAUGHAN, ONTARIO Prepared for: Hatch Corporation 5035 South Service Road, Sixth Floor Burlington, Ontario L7L 6M9 Attention: Mira Vervoorn File No 1-17-0322-40-rev1 Issued: November 5, 2018 ©Terraprobe Inc. Terraprobe Inc. Greater Toronto Hamilton – Niagara Central Ontario Northern Ontario 11 Indell Lane 903 Barton Street, Unit 22 220 Bayview Drive, Unit 25 1012 Kelly Lake Rd., Unit 1 Brampton, Ontario L6T 3Y3 Stoney Creek, Ontario L8E 5P5 Barrie, Ontario L4N 4Y8 Sudbury, Ontario P3E 5P4 (905) 796-2650 Fax: 796-2250 (905) 643-7560 Fax: 643-7559 (705) 739-8355 Fax: 739-8369 (705) 670-0460 Fax: 670-0558 www.terraprobe.ca Contamination Overview Study November 5, 2018 Dufferin Street from Langstaff Road to Teston Road, Vaughan, Ontario File No. 1-17-0322-40-rev1 TABLE OF CONTENTS SECTION PAGE 1.0 EXECUTIVE SUMMARY ............................................................................................................. 1 2.0 INTRODUCTION ........................................................................................................................... 2 2.1 Notes for Reading the Report ............................................................................................. 2 3.0 SCOPE OF INVESTIGATION ....................................................................................................... 3 3.1 Records Review .................................................................................................................. 3 3.2 Site Reconnaissance ............................................................................................................ 4 3.3 Documentation and Evaluation of Information .................................................................. 4 4.0 RECORDS REVIEW....................................................................................................................... 5 4.1 General ................................................................................................................................ 5 4.1.1 Study Area Determination ..................................................................................... 5 4.1.2 First Developed Use Determination....................................................................... 5 4.1.3 Environmental Reports .......................................................................................... 5 4.2 Environmental Source Information ..................................................................................... 5 4.2.1 ERIS ....................................................................................................................... 5 4.2.2 Other Source Information ...................................................................................... 7 4.3 Physical Setting Sources ..................................................................................................... 8 4.3.1 Aerial Photographs and Historic Mapping ............................................................ 8 4.3.2 Topography Hydrology, Geology .......................................................................... 9 4.3.3 Fill Materials .......................................................................................................... 9 4.3.4 Water Bodies, Wetlands and Areas of Natural Significance ............................... 10 4.3.5 Archaeological Resources or Areas of Archaeological Potential ........................ 11 4.3.6 Species at Risk ..................................................................................................... 11 4.3.7 Well Records ....................................................................................................... 11 4.4 Site Operating Records ..................................................................................................... 12 5.0 SITE RECONNAISSANCE .......................................................................................................... 13 5.1 General Requirements ....................................................................................................... 13 5.2 Specific Observations at Phase One Site .......................................................................... 13 5.2.1 Building and Structure Descriptions .................................................................... 13 5.2.2 Designated substances and Other Special Attention Items .................................. 13 5.2.3 Below Ground Structures ..................................................................................... 14 5.2.4 Above Ground Storage Tanks .............................................................................. 14 5.2.5 Under Ground Storage Tanks .............................................................................. 14 5.2.6 Exterior Site Conditions ....................................................................................... 14 5.3 Investigation of Study Area .............................................................................................. 16 5.4 Written Description of Investigation ................................................................................ 17 5.5 Potentially Contaminating Activities ................................................................................ 18 6.0 CONCLUSIONS AND RECOMMENDATIONS ........................................................................ 19 6.1 Potential Contaminating Activities ................................................................................... 19 6.2 Areas of Potential Environmental Concern ...................................................................... 22 6.3 Recommended Environmental Site Assessment Work Plan ............................................. 24 7.0 CLOSURE ..................................................................................................................................... 26 Terraprobe Page No ii Contamination Overview Study November 5, 2018 Dufferin Street from Langstaff Road to Teston Road, Vaughan, Ontario File No. 1-17-0322-40-rev1 8.0 REFERENCES .............................................................................................................................. 27 9.0 LIMITATIONS AND USE OF THE REPORT ............................................................................ 28 FIGURES Figure 1 Site Location Figure 2 Study Area (North) Figure 3 Study Area (South) Figure 4 APECs (North) Figure 5 APECs (South) APPENDICES Appendix A Aerial Photographs, Satellite Images Appendix B ERIS Report Appendix C Topographic Map and Geological Mapping Appendix D Regulatory Responses Appendix E MECP Well Records Terraprobe Page No iii Contamination Overview Study November 5, 2018 Dufferin Street from Langstaff Road to Teston Road, Vaughan, Ontario File No. 1-17-0322-40-rev1 1.0 EXECUTIVE SUMMARY Hatch Corporation retained Terraprobe Inc. (Terraprobe), to complete a Contamination Overview Study of the Regional Road site located at Dufferin Street between Langstaff Road and Teston Road, Vaughan, Ontario (the “Site”). The boundaries of the study (the “Study Area”) extend approximately 100 m east and west of Dufferin Street across the whole Site. These boundaries extend an additional distance to the east and/or west by approximately 250 m at Teston Road and Major Mackenzie Drive West. The Site shape is generally rectangular with a total length of approximately 6.6 km. The Site is developed as a roadway. Under Ontario Regulation 153/04, the Site is considered to be in Community Land Use by the Ontario Ministry of the Environment, Conservation and Parks (MECP). The investigation identified the following potential contaminating activities within the Study Area: #30 Importation of Fill Material of Unknown Quality #28 Gasoline and Associated Products Storage in Fixed Tanks #34 Metal Fabrication #37 Operation of Dry Cleaning Equipment (where chemicals are used) #39 Paints Manufacturing, Processing and Bulk Storage #57 Vehicles and Associated Parts Manufacturing #59 Wood Treating and Preservative Facility and Bulk Storage of Treated and Preserved Wood Products #10 Commercial Autobody Shops #19 Electronic and Computer Equipment Manufacturing Environmental Site Assessments including soil and ground water investigations may be required to investigate the potential impacts within the Site caused by surrounding land uses. There may be soil and ground water disposal implications if replacement of culverts located across the Site is required. Terraprobe Page No 1 Contamination Overview Study November 5, 2018 Dufferin Street from Langstaff Road to Teston Road, Vaughan, Ontario File No. 1-17-0322-40-rev1 2.0 INTRODUCTION Hatch Corporation retained Terraprobe Inc. (Terraprobe), to complete a Contamination Overview Study of the regional roadway site located at Dufferin Street between Langstaff Road and Teston Road, Vaughan, Ontario (the “Site”). The boundaries of the study (the “Study Area”) extend approximately 100 m east and west of Dufferin Street across the whole Site. These boundaries extend an additional distance to the east and/or west by