Executive Summary PHASE ONE ENVIRONMENTAL SITE ASSESSMENT 296 SOMERSET STREET EAST, OTTAWA, ON Project No.: 0CP-18-0041 Prepared for: TC United Group. 800 Industrial Ave, Unit 9 Ottawa, ON K1G 4B8 Prepared by: McIntosh Perry Consulting Engineers Ltd. 115 Walgreen Road, RR3 Carp, ON K0A 1L0 March 2, 2018 i Executive Summary McIntosh Perry Consulting Engineers Ltd. (McIntosh Perry) was retained by TC United Group to conduct a Phase One Environmental Site Assessment (ESA) for the property located at 296 Somerset Street East, Ottawa, Ontario (‘the Site’). The Site is bounded to the north by Somerset Street East, and to the east, west, and south by residential dwellings. The Site currently consists of a single family residential building (currently occupied) and a small detached garage. It is understood that this Phase One ESA is being completed as a component of the City of Ottawa site plan submission process, in support of an application to construct a residential building which will include four residential units and one commercial unit on the ground floor. The Phase One ESA has been prepared in general accordance with the requirements of Ontario Regulation (O.Reg.) 153/04 as amended. The report is also in general compliance with “Phase I Environmental Site Assessment”, Canadian Standards Association (CSA) standard CSA Z768-01, reaffirmed 2016. Based on a review of aerial photographs, historical information, and interviews, the Site was developed with the present-day residential dwelling between 1924 and 1928. Prior to this time, the Site was likely vacant. No Potentially Contaminating Activities (PCAs) or Areas of Potential Environmental Concern (APECs) were identified at, on, or under the Site. The following offsite PCAs were identified in the Phase One ESA Study Area: x 308 Somerset Street East – Possible historical use as a dry cleaner and dye manufacturing, processing, and/or bulk storage. x 306 Somerset Street East – Ontario Spill Record (outdoor oil tank ‘weeping’). x 330 Templeton Street – Ontario Spill Record (underground fuel storage tank leak). x 330 Templeton Street – O.Reg 347 waste generator (oil skimmings and sludges). Based on the nature, location, and age of the offsite PCAs, no on-site APECs were identified. A Phase 2 ESA is not deemed to be necessary at this time. ii Phase One Environmental Site Assessment 296 Somerset Street East, Ottawa, ON 0CP-18-0041 TABLE OF CONTENTS 1.0 INTRODUCTION ...................................................................................................................................... 1 1.1 Phase One Property Information ....................................................................................................................... 1 1.1.1 Property Identification .............................................................................................................................. 1 1.1.2 Property Ownership and Contact Details ................................................................................................... 1 1.1.3 Current and Proposed Future Uses ............................................................................................................ 1 1.2 Surrounding Land Use ....................................................................................................................................... 1 2.0 SCOPE OF INVESTIGATION ...................................................................................................................... 2 3.0 RECORDS REVIEW ................................................................................................................................... 3 3.1 General ............................................................................................................................................................. 3 3.1.1 Phase One Study Area Determination ....................................................................................................... 3 3.1.2 First Developed Use Determination........................................................................................................... 3 3.1.3 Fire Insurance Plans .................................................................................................................................. 3 3.1.4 Chain of Title ............................................................................................................................................. 3 3.1.5 Reports by Others ..................................................................................................................................... 3 3.1.6 City Directories ......................................................................................................................................... 3 3.2 Environmental Source Information .................................................................................................................... 4 3.2.1 Databases Searched .................................................................................................................................. 4 3.2.2 Database Findings Relevant to the Phase One ESA .................................................................................... 5 3.2.3 MOECC Freedom of Information Request.................................................................................................. 9 3.2.4 TSSA Information Request......................................................................................................................... 9 4.0 PHYSICAL SETTING ................................................................................................................................ 10 4.1 Aerial Photographs and Satellite Images ..........................................................................................................10 4.2 Topography .....................................................................................................................................................10 4.3 Hydrology ........................................................................................................................................................10 4.4 Geology ...........................................................................................................................................................11 4.4.1 Surficial Geology ......................................................................................................................................11 4.4.2 Bedrock Geology ......................................................................................................................................11 4.5 Hydrogeology ..................................................................................................................................................11 iii Phase One Environmental Site Assessment 296 Somerset Street East, Ottawa, ON 0CP-18-0041 4.6 Fill Materials ....................................................................................................................................................11 4.7 Water Bodies and Areas of Natural Significance...............................................................................................11 4.8 Well Records ....................................................................................................................................................12 5.0 INTERVIEWS ......................................................................................................................................... 13 6.0 SITE RECONNAISSANCE ........................................................................................................................ 14 6.1 General Requirements .....................................................................................................................................14 6.1.1 Qualifications of the Assessors .................................................................................................................14 6.1.2 Weather Conditions at Time of Inspection ...............................................................................................14 6.1.3 Property Occupancy/Use Status at Time of Inspection .............................................................................14 6.1.4 Site Photographs ......................................................................................................................................14 6.2 Description of Investigations ............................................................................................................................15 6.2.1 Phase One Property .................................................................................................................................15 6.2.2 Phase One Study Area ..............................................................................................................................15 6.3 Specific Observations at the Phase One Property..............................................................................................15 6.3.1 Structures and Other Improvements ........................................................................................................15 6.3.2 Below Ground Structures .........................................................................................................................15 6.3.3 Storage Tanks ..........................................................................................................................................15 6.3.4 Hazardous Materials ................................................................................................................................15