Ontario Ministry of the Environment and Climate Change - Record of Site Condition #

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1 Ontario Ministry of the Environment and Climate Change - Record of Site Condition # Record of Site Condition Under Part XV.1 of the Environment Protection Act Summary Record of Site Condition Number Date Filed to Environmental Site Registry 2016/03/22 Certification Date 2015/06/19 Current Property Use Commercial Intended Property Use Residential Certificate of Property Use Number No CPU Applicable Site Condition Standards** Full Depth Generic Site Conditions Standard, with Non-potable Ground Water, Coarse Textured Soil, for Residential property use Property Municipal Address 1140 WELLINGTON STREET WEST, OTTAWA, ON, K1Y 2Z3 Notice to Readers Concerning Due Diligence This record of site condition has been filed in the Environmental Site Registry to which the public has access and which contains a notice advising users of the Environmental Site Registry who have dealings with any property to consider conducting their own due diligence with respect to the environmental condition of the property, in addition to reviewing information in the Environmental Site Registry. Contents of this Record of Site Condition This record of site condition consists (RSC) of this document which is available to be printed directly from the Environmental Site Registry as well as all supporting documentation indicated in this RSC to have been submitted in electronic format to the Ministry of the Environment and Climate Change. Filed Record of Site Condition # on 2016/03/22 1 of 19

2 Part 1: Property Ownership, Property Information and Owner s Certifications Information about the owner who is submitting or authorizing the submission of the record of site condition Owner name Authorized person Mailing address TAMARACK (WESTBORO) CORPORATION SCOTT PARKES 3187 ALBION ROAD SOUTH, OTTAWA Ontario, Canada Postal Code K1V 8Y3 Phone (613) Fax address staggart@doran.ca Filed Record of Site Condition # on 2016/03/22 2 of 19

3 Record of site condition property location information Municipal address(es) Municipality Legal description Assessment roll number(s) Property identifier number(s) 1140 WELLINGTON STREET WEST, OTTAWA, ON K1Y 2Z3 Ottawa See attached Lawyer s letter (LT) Record of site condition property geographical references Coordinate system UTM Datum NAD 83 Zone 18 Easting 443, Northing 5,027, Record of site condition property use information The following types of property uses are defined by the Regulation: Agricultural or other use, Commercial use, Community use, Industrial use, Institutional use, Parkland use, and Residential use. Current property use Intended property use Certificate of property use has been issued under section of the Environmental Protection Act Commercial Residential No Filed Record of Site Condition # on 2016/03/22 3 of 19

4 Please see the signed statements of property owner, or agent, or receiver at the end of this record of site condition The rest of this page has been left intentionally blank Filed Record of Site Condition # on 2016/03/22 4 of 19

5 Part 2: List of reports, summary of site conditions and qualified person s statements and certifications Qualified person's information Name Type of licence under Professional Engineers Act DANIEL J ARNOTT Licence Licence number Quallified person's employer name Mailing address PATERSON GROUP INC. 154 COLONNADE ROAD, OTTAWA Ontario, K2E 7J5 Canada Phone (613) Fax (613) address darnott@patersongroup.ca Municipal information Local or single-tier municipality Ottawa Ministry of the Environment and Climate Change District Office District office District office address Ottawa District Office 2430 Don Reid Drive, Ottawa ON K1H 1E1 Filed Record of Site Condition # on 2016/03/22 5 of 19

6 Phase one environmental site assessment report Document used as the phase one environmental site assessment report and updates in submitting the record of site condition for filing The date the last work on all of the records review, interviews and site reconnaissance components of the phase one environmental site assessment was done (refer to clause 28(1) (a) of O. Reg. 153/04) (yyyy/mm/dd) Type of report Phase one environmental site assessment Update to phase one environmental site assessment Report title Phase I Environmental Site Assessment, 1140 and 1156 Wellington Street West, Ottawa, Ontario Phase I ESA Update, 1140 Wellington Street West, Ottawa, Ontario Date of report (yyyy/mm/dd) Author of report Name of consulting company Mark D'Arcy PATERSON GROUP INC Dan Arnott PATERSON GROUP INC. Reports and other documents related to the phase one environmental site assessment Reports and other documents relied upon in certifying the information set out in section 10 of Schedule A or otherwise used in conducting the phase one environmental site assessment Report title Phase I Environmental Site Assessment, Wellington Street West, Ottawa, Ontario Date of report (yyyy/mm/dd) Author of report Larry Backman Name of consulting company Pinchin Environmental Filed Record of Site Condition # on 2016/03/22 6 of 19

7 Phase two environmental site assessment report Document used as the phase two environmental site assessment report and updates in submitting the record of site condition for filing The date the last work on all of the planning of the site investigation and conducting the site investigation components of the phase two environmental site assessment was done (refer to clause 33.5(1)(a) of O. Reg. 153/04) (yyyy/mm/dd) Type of report Phase two environmental site assessment Report title Phase II Environmental Site Assessment, Proposed Residential Development, 1140 Wellington Street West, Ottawa, Ontario Date of report (yyyy/mm/dd) Author of report Name of consulting company Mark D'Arcy PATERSON GROUP INC. Reports and other documents related to the phase two environmental site assessment Reports and other documents relied upon in making any certifications in the record of site condition for the purposes of Part IV of Schedule A or otherwise used in conducting the phase two environmental site assessment Report title Phase II Environmental Site Assessment, Wellington Street, Ottawa, Ontario Supplemental Phase II Environmental Site Assessment, 1140 Wellington Street West, Ottawa, Ontario Date of report (yyyy/mm/dd) Author of report Name of consulting company Scott Mather Pinchin Environmental Inc Mark D'Arcy Paterson Group Inc. Filed Record of Site Condition # on 2016/03/22 7 of 19

8 Environmental condition Section 41 applies? Section 43.1 applies? No No Site condition information Certification date (yyyy/mm/dd) 2015/06/19 Total area of record of site condition property (in hectares) Number of any previously filed record of site condition that applies to any part of the record of site condition property Number of any previously filed transition notice that applies to any part of the record of site condition property Soil texture Assessment/restoration approach Site investigation includes the investigation, sampling and analysis of ground water? Is there soil present that is sufficient to investigate, sample and analyze soil on, in or under the property in accordance with s. 6, Schedule E of O.Reg. 153/04? Site investigation includes the investigation, sampling and analysis of soil on, in or under the property which is used in the record of site condition? Name of the laboratory used to analyze any samples collected of soil, ground water or sediment Ground water condition (potable, non-potable) Coarse Full depth generic Yes Yes Yes PARACEL LABORATORIES Non-potable Applicable site condition standard TABLE 3 Local or single-tier municipality non-potable written notification date 2016/02/25 Filed Record of Site Condition # on 2016/03/22 8 of 19

9 Table 1 Maximum contaminant concentrations compared to applicable site condition standards Measured concentration for contaminants in soil Contaminant name Maximum concentration Applicable site condition 1 Acetone < µg/g 2 Bromomethane < µg/g 3 Carbon Tetrachloride < µg/g 4 Chlorobenzene < µg/g 5 Chloroform < µg/g 6 Dichlorobenzene, 1,2- < µg/g 7 Dichlorobenzene, 1,3- < µg/g 8 Dichlorobenzene, 1,4- < µg/g 9 Dichlorodifluoromethane < µg/g 10 Dichloroethane, 1,1- < µg/g 11 Dichloroethane, 1,2- < µg/g 12 Dichloroethylene, 1,1- < µg/g 13 Dichloroethylene, 1,2-cis- < µg/g 14 Dichloroethylene, 1,2-trans- < µg/g 15 Dichloropropane, 1,2- < µg/g 16 Dichloropropene,1,3- < µg/g 17 Ethylene dibromide < µg/g 18 Hexane (n) < µg/g 19 Methyl Ethyl Ketone < µg/g 20 Methyl Isobutyl Ketone < µg/g 21 Methyl tert-butyl Ether (MTBE) < µg/g 22 Methylene Chloride < µg/g 23 Styrene < µg/g 24 Tetrachloroethane, 1,1,1,2- < µg/g 25 Tetrachloroethane, 1,1,2,2- < µg/g 26 Tetrachloroethylene < µg/g 27 Trichloroethane, 1,1,1- < µg/g 28 Trichloroethane, 1,1,2- < µg/g 29 Trichloroethylene < µg/g 30 Trichlorofluoromethane < µg/g 31 Vinyl Chloride < µg/g 32 Petroleum Hydrocarbons F1**** µg/g 33 Petroleum Hydrocarbons F2 < 4 98 µg/g 34 Petroleum Hydrocarbons F µg/g 35 Petroleum Hydrocarbons F µg/g Unit of measure...continued on next page Filed Record of Site Condition # on 2016/03/22 9 of 19

10 Table 1 Maximum contaminant concentrations compared to applicable site condition standards Measured concentration for contaminants in soil Continued from previous page... Contaminant name Maximum concentration Applicable site condition 36 Benzene < µg/g 37 Ethylbenzene < µg/g 38 Toluene < µg/g 39 Xylene Mixture µg/g Unit of measure Filed Record of Site Condition # on 2016/03/22 10 of 19

11 Table 1 Maximum contaminant concentrations compared to applicable site condition standards (Continued) Ground water Contaminant name Maximum concentration Applicable site condition 1 Acetone 3, µg/l 2 Bromomethane < µg/l 3 Carbon Tetrachloride < µg/l 4 Chlorobenzene < µg/l 5 Chloroform µg/l 6 Dichlorobenzene, 1,2- < µg/l 7 Dichlorobenzene, 1,3- < µg/l 8 Dichlorobenzene, 1,4- < µg/l 9 Dichlorodifluoromethane < µg/l 10 Dichloroethane, 1,1- < µg/l 11 Dichloroethane, 1,2- < µg/l 12 Dichloroethylene, 1,1- < µg/l 13 Dichloroethylene, 1,2-cis µg/l 14 Dichloroethylene, 1,2-trans- < µg/l 15 Dichloropropane, 1,2- < µg/l 16 Dichloropropene,1,3- < µg/l 17 Ethylene dibromide < µg/l 18 Hexane (n) < 1 51 µg/l 19 Methyl Ethyl Ketone µg/l 20 Methyl Isobutyl Ketone < µg/l 21 Methyl tert-butyl Ether (MTBE) < µg/l 22 Methylene Chloride < µg/l 23 Styrene < µg/l 24 Tetrachloroethane, 1,1,1,2- < µg/l 25 Tetrachloroethane, 1,1,2,2- < µg/l 26 Tetrachloroethylene < µg/l 27 Trichloroethane, 1,1,1- < µg/l 28 Trichloroethane, 1,1,2- < µg/l 29 Trichloroethylene < µg/l 30 Trichlorofluoromethane < µg/l 31 Vinyl Chloride < µg/l 32 Petroleum Hydrocarbons F1**** < µg/l 33 Petroleum Hydrocarbons F2 < µg/l 34 Petroleum Hydrocarbons F3 < µg/l 35 Petroleum Hydrocarbons F4 < µg/l Unit of measure...continued on next page Filed Record of Site Condition # on 2016/03/22 11 of 19

12 Table 1 Maximum contaminant concentrations compared to applicable site condition standards (Continued) Ground water Continued from previous page... Contaminant name Maximum concentration Applicable site condition 36 Benzene µg/l 37 Ethylbenzene µg/l 38 Toluene µg/l 39 Xylene Mixture µg/l Unit of measure Filed Record of Site Condition # on 2016/03/22 12 of 19

13 Remedial action and mitigation Remediated soils Estimated quantities of the soil, if any, originating at and remaining on the record of site condition property that have been remediated, at a location either on or off the property, to reduce the concentration of contaminants in the soil. Indicate the remediation process or processes used and the estimated amount of soil remediated by each identified process. Soil remediation process Estimated quantity of soil (in groundvolume in cubic metres) Description of remediation Description of any action taken to reduce the concentration of contaminants (including soil removals) on, in or under the record of site condition property. Soil or sediment removed and not returned Estimated quantities of soil or sediment, if any, removed from and not returned to the record of site condition property. Estimated quantity of soil (in ground-volume in cubic metres) Estimated quantity of sediment (in ground-volume in cubic metres) Soil brought to the property Estimated quantity of the soil, if any, being brought from another property to and deposited at the record of site condition property, not including any soil that may have originated at but been remediated off the record of site condition property and that is identified in section 28 of Schedule A. Estimated quantity of soil brought to the property (in ground-volume in cubic metres) Filed Record of Site Condition # on 2016/03/22 13 of 19

14 Ground water control or treatment measures Ground water control or treatment measures that were required for the record of site condition property prior to the certification date for the purpose of submitting the record of site condition for filing. Ground water control or treatment measures that are required for the record of site condition property after the certification date. Estimated volume of ground water, if any, removed from and not returned to the record of site condition property. Estimated volume of ground water (in litres) Filed Record of Site Condition # on 2016/03/22 14 of 19

15 Other activities including risk management measures Constructed works that prior to the certification date for the purpose of submitting the record of site condition for filing, were required to control or otherwise mitigate the release or movement of known existing contaminants at the record of site condition property. Constructed works that after the certification date, are required to control or otherwise mitigate the release or movement of known existing contaminants at the record of site condition property. Monitoring or Maintenance Soil Management Measures Soil monitoring requirements or any requirements for care, maintenance or replacement or any monitoring or control works for known existing contaminants, if any, on the record of site condition property, after the certification date. Ground water management measures Ground water monitoring requirements or requirements for care, maintenance or replacement of any monitoring or control works or known existing contaminants, if any, on the record of site condition property, after the certification date. Remediated or removed soil, sediment or ground water from near property boundary Has any soil, sediment or ground water at the record of site condition property that is or was located within 3 metres of the record of site condition property boundary been remediated or removed for the purpose of remediation? No Filed Record of Site Condition # on 2016/03/22 15 of 19

16 D Qualified person s statements and certifications As the qualified person, I certify that: A phase one environmental site assessment of the record of site condition property, which includes the evaluation of the information gathered from a records review, site reconnaissance, interviews, a report and any updates required, has been conducted in accordance with the regulation by or under the supervision of a qualified person as required by the regulation. A phase two environmental site assessment of the record of site condition property, which includes the evaluation of the information gathered from planning and conducting a site investigation, a report, and any updates required, has been conducted in accordance with the regulation by or under the supervision of a qualified person as required by the regulation. The information represents the site conditions at the sampling points at the time of sampling only and the conditions between and beyond the sampling points may vary. As of 2015/06/19, in my opinion, based on the phase one environmental site assessment and the phase two environmental site assessment, and any confirmatory sampling, there is no evidence of any contaminants in the soil, ground water or sediment on, in or under the record of site condition property that would interfere with the type of property use to which the record of site condition property will be put, as specified in the record of site condition. Ground water sampling has been conducted in accordance with the regulation by or under the supervision of a qualified person as required by the regulation. I have, within the six months immediately before the submission of this record of site condition, given written notice of intention to apply non-potable ground water site condition standards to the clerk of the local municipality in which the property is located and the clerk of any upper-tier municipality in which the property is located. As of 2015/06/19, in my opinion, based on the phase one and phase two environmental site assessments and any confirmatory sampling, the record of site condition property meets the applicable full depth generic site condition standards prescribed by section 37 of the regulation for all contaminants prescribed by the regulation in relation to the type of property use for which this record of site condition is filed, except for those contaminants (if any) specified in this record of site condition at Table 2, maximum contaminant concentrations compared to standards specified in a risk assessment. As of 2015/06/19, the maximum known concentration of each contaminant in soil, sediment and ground water at the record of site condition property for which sampling and analysis has been performed is specified in this record of site condition at Table 1, maximum contaminant concentrations compared to applicable full depth generic site condition standards. I am a qualified person and have the qualifications required by section 5 of the regulation. I have in place an insurance policy that satisfies the requirements of section 7 of the regulation. I acknowledge that the record of site condition will be submitted for filing in the Environmental Site Registry, that records of site condition that are filed in the Registry are available for examination by the public and that the Registry contains a notice advising users of the Registry who have dealings with any property to consider conducting their own due diligence with respect to the environmental condition of the property, in addition to reviewing information in the Registry. The opinions expressed in this record of site condition are engineering or scientific opinions made in accordance with generally accepted principles and practices as recognized by members of the environmental engineering or science profession or discipline practising at the same time and in the same or similar location. I do not hold and have not held and my employer PATERSON GROUP INC. does not hold and has not held a direct or indirect interest in the record of site condition property or any property which includes the record of site condition property and was the subject of a phase one or environmental site assessment or risk assessment upon which this record of site condition is based. To the best of my knowledge, the certifications and statements in this part of the record of site condition are true as of 2015/06/19. By signing this record of site condition, I make no express or implied warranties or guarantees. By checking the boxes above, and entering my membership/licence number in this submission, I, DANIEL J Filed Record of Site Condition # on 2016/03/22 16 of 19

17 By checking the boxes above, and entering my membership/licence number in this submission, I, DANIEL J ARNOTT, a qualified person as defined in section 5 of O. Reg. 153/04 am, on 2016/03/02: a) signing this record of site condition submission as a qualified person; and b) making all certifications required as a qualified person for this record of site condition. I agree Filed Record of Site Condition # on 2016/03/22 17 of 19

18 Additional documentation provided by property owner or agent The following documents have been submitted to the Ministry of the Environment and Climate Change as part of the record of site condition Certificate of status or equivalent for the owner Lawyer's letter consisting of a legal description of the property Copy of any deed(s), transfer(s) or other document(s) by which the record of site condition property was acquired A Current plan of survey A copy of no objection statement from municipality Area(s) of potential environmental concern Table of current and past uses of the phase one property Phase 2 conceptual site model Owner or agent certification statements Filed Record of Site Condition # on 2016/03/22 18 of 19

19 Filed Record of Site Condition # on 2016/03/22 19 of 19

20 Request ID: Province of Ontario Date Report Produced: 2016/03/02 Demande n : Province de l'ontario Document produit le : Transaction ID: Ministry of Government Services Time Report Produced: 12:17:32 Transaction n : Ministère des Services gouvernementaux Imprimé à : Category ID: CT Catégorie : CERTIFICATE OF STATUS ATTESTATION DU STATUT JURIDIQUE This is to certify that according to the records of the Ministry of Government Services D'après les dossiers du Ministère des Services gouvernementaux, nous attestons que la société T A M A R A C K ( W E S T B O R O ) C O R P O R A T I O N Ontario Corporation Number Numéro matricule de la société (Ontario) is a corporation incorporated, amalgamated or continued under the laws of the Province of Ontario. The corporation came into existence on est une société constituée, prorogée ou née d'une fusion aux termes des lois de la Province de l'ontario. La société a été fondée le O C T O B E R 1 3 O C T O B R E, and has not been dissolved. et n'est pas dissoute. Dated Fait le M A R C H 0 2 M A R S, Director Directeur The issuance of this certificate in electronic form is authorized by the Ministry of Government Services. La délivrance du présent certificat sous forme électronique est autorisée par le Ministère des Services gouvernementaux.

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44 Record of Site Condition Application 1140 Wellington Street West, Ottawa, Ontario PE2905 September 2015 TABLE OF AREAS OF POTENTIAL ENVIRONMENTAL CONCERN Area of Potential Environmental Concern APEC #1 Location of Area of Potential Environmental Concern on RSC Property Northeastern portion of subject property Potentially Contaminating Activity Location of PCA (on-site or off-site) Former retail fuel outlet on On-site northeastern portion of subject site (Item 28, Column A, Table 2, O.Reg. 153/04 - "Gasoline and Associated Products Storage in Fixed Tanks") Contaminants of Potential Concern VOCs, PHCs F1-F4 Media Potentially Impacted (Groundwater, soil, and/or sediment) Soil, Groundwater APEC #2 Northeastern portion of subject property Fill material identified on On-site subject property (Item 30, Column A, Table 2, O.Reg. 153/04 - "Importation of Fill Material of Unknown Quality") VOCs, PHCs F1-F4 Soil, Groundwater patersongroup

45 Record of Site Condition Application 1140 Wellington Street West, Ottawa, Ontario PE2905 September 2015 TABLE OF CURRENT AND PAST USES OF THE RSC PROPERTY Year Name of Owner Tamarack (Westboro) Corporation Description of Property Use Property Use Other Observations from Aerial Photos, Fire Insurance Plans, etc. PIN (Consolidated PIN, RSC Property) Former retail fuel outlet, current parking lot; and Institutional building (home for orphans, later a community resource centre and offices associated with Salvation Army; vacant as of 2014) Commercial use Institutional building present on-site ; redevelopment of vacant portions of site (while maintaining existing institutional building) began early in Former PIN (Part of Lot 2, Plan 14) The Governing Council of the Salvation Army in Canada Institutional building Institutional use (home for orphans, later a community resource centre and offices associated with Salvation Army) Site first listed as Salvation Army Grace Manor in City directories in This is considered to be the first developed use of the site. Institutional building present on-site since approximately Thomas B. Combs Vacant Agricultural or other use Site not listed in city directories prior to Henry J. Ross Vacant Agricultural or other use William A. Ross Vacant Agricultural or other use William Taylor Vacant Agricultural or other use 1862 Thomas Anderson Vacant Agricultural or other use Janet Anderson Vacant Agricultural or other use Title first registered to Janet Anderson in Former PIN (Part of Lots A and B, Plan 104) The Governing Council of the Salvation Army in Canada Paved asphalt parking lot Commercial use Site is shown as vacant parking lot in 1985, 1985, and 1996 air photos, as well as City of Ottawa air photos. Lot A, Plan 104 prior to consolidation Supertest Petroleum Corporation Limited Retail fuel outlet Commercial use Site first listed in City Directories as a retail fuel outlet in the early 1940s. This is considered to be the first developed use of the site. Site listed as retail fuel outlet between 1940s and 1950s, and is shown as a retail fuel outlet on the 1956 Fire Insurance Plans and in 1958 air photos. Site is shown as a vacant parking lot in 1945 air photos David Hyland and Eva G. Read Vacant Agricultural or other use Site not listed in city directories prior to early 1940s Patrick Garland Vacant Agricultural or other use Robert Seannell Vacant Agricultural or other use Abraham Garland Vacant Agricultural or other use Title first registered to Abraham Garland in 1889 patersongroup

46 Record of Site Condition Application 1140 Wellington Street West, Ottawa, Ontario PE2905 September 2015 Lot B, Plan 104 prior to consolidation Supertest Petroleum Corporation Limited Retail fuel outlet Commercial use Site first listed in City Directories as a retail fuel outlet in the early 1940s. This is considered to be the first developed use of the site. Site listed as retail fuel outlet between 1940s and 1950s, and is shown as a retail fuel outlet on the 1956 Fire Insurance Plans and in 1958 air photos. Site is shown as a vacant parking lot in 1945 air photos Ida Hudson Vacant Agricultural or other use William J. Wilson Vacant Agricultural or other use Emily and Martice Allbright Vacant Agricultural or other use Site not listed in city directories prior to early 1940s William Garland Vacant Agricultural or other use 1903 Isabella Garland Vacant Agricultural or other use Abraham Garland Vacant Agricultural or other use Title first registered to Abraham Garland in patersongroup

47 patersongroup consulting engineers memorandum to: Tamarack (Westboro) Corporation - Mr. Simon Taggart - staggart@doran.ca re: Conceptual Site Model - Narrative Component Record of Site Condition Wellington Street West, Ottawa, Ontario date: September 14, 2015 file: PE2905-MEMO.03 CSM from: Dan Arnott The following provides a narrative description of the Conceptual Site Model for the RSC property, addressed as 1140 Wellington Street West, Ontario. This narrative is to be read in conjunction with the following drawings: Drawing PE2905-1R Site Plan Drawing PE2905-3R Surrounding Land Use Drawing PE Test Hole Location Plan Drawing PE Groundwater Contour Plan Drawing PE Cross-Section A-A' Site Description The RSC Property is located at the southwest corner of Wellington Street West and Rosemount Avenue, in the City of Ottawa, Ontario. At the time of the first involvement by Paterson, the RSC Property consisted of a paved asphalt parking area, a vacant institutional building, and grass-covered open space. At the time of this application, the RSC Property is under development with a residential condominium development which incorporates the existing institutional building. Soldier piles and lagging have been constructed along Rosemount Avenue and Wellington Street West, and soil and bedrock have been excavated to allow for the construction of two (2) levels of underground parking. The majority of soil has been removed from the subject site for development purpose. Prior to Paterson's involvement with the subject site, Pinchin Environmental Ltd. (Pinchin) had completed a Phase I and Phase II ESA for the subject site. These reports were available for review by Paterson. The Phase I ESA identified the historical presence of a retail fuel outlet on the northeast corner of the subject site. Boreholes were drilled and monitoring wells were installed by Pinchin to assess the potential for contamination from these activities. All soil samples from the Pinchin investigation were in compliance with the selected standards, although Pinchin's monitoring wells were installed in overburden above the long-term water table and groundwater samples could not be obtained. patersongroup

48 Mr. Simon Taggart Page 2 File: PE2905-MEMO.01 CSM In February 2013, Paterson completed a supplemental Phase II ESA for the subject site in conjunction with a geotechnical investigation in support of the proposed development. Soil and groundwater samples were submitted for laboratory analysis and were found to be in compliance with the current MOECC Table 3 residential standards for coarsegrained soils. In November 2013, Paterson completed an updated Phase I ESA for the subject site. This Phase I ESA was completed in accordance with the requirements of O.Reg. 153/04 (as amended). The 2013 Paterson Phase I ESA identified the presence of the retail fuel outlet on the northeast corner of the subject site as well as the presence of fill material of unknown quality as Areas of Potential Environmental Concern with respect to the site. The quality of the fill material was considered to have been adequately assessed by the above-noted subsurface investigations by Paterson and Pinchin. Beginning in January 2015, excavation of soils and bedrock at the subject site was commenced, for the purpose of providing underground parking for a residential development under construction at the subject site. It is noted that excavation of site soils and bedrock was undertaken for grading/construction purposes, not for remedial purposes, and as above, soil at the subject site was in compliance with the selected MOECC Table 3 standards. Although groundwater samples collected during the 2013 Paterson Phase II ESA were in compliance with selected MOECC Table 3 standards, it was noted that insufficient monitoring wells were present on-site for groundwater triangulation in support of a Record of Site Condition application, as per the requirements of O.Reg. 153/04 as amended. As such, following the excavation of soil and bedrock at the subject site to final depth, Paterson completed a Phase II ESA for the subject site that included the drilling of four (4) boreholes and the installation of four (4) monitoring wells in the base of the excavation in the vicinity of the former retail fuel outlet. All results from Paterson's 2015 Phase II ESA were in compliance with MOECC Table 3 standards. Potentially Contaminating Activities and Areas of Potential Environmental Concern The Phase I ESAs completed by Pinchin and Paterson identified several Potentially Contaminating Activities at the RSC Property and on adjacent properties. Two (2) onsite PCAs were identified on the RSC Property: Historical presence of retail fuel outlet on the subject site (Item 28, Column A, Table 2, O.Reg. 153/04 - Gasoline and Associated Products Storage in Fixed Tanks ); patersongroup

49 Mr. Simon Taggart Page 3 File: PE2905-MEMO.01 CSM Presence of fill material of unknown quality identified by subsurface investigations on the subject site (Item 30, Column A, Table 2, O.Reg. 153/04 - "Importation of Fill Material of Unknown Quality"). These PCAs are considered to represent APECs with respect to the RSC Property. Additional PCAs identified within the Phase I study area are not considered to represent APECs with respect to the RSC Property, given their separation distance and/or downgradient or crossgradient orientation with respect to the RSC Property. Contaminants of Potential Concern and Impacted Media The following Contaminants of Concern were identified with respect to the RSC Property: Volatile Organic Compounds (VOCs) - this suite of parameters includes chlorinated solvents (tetrachloroethylene, trichloroethylene, dichloroethylenes, and vinyl chloride) associated with de-greasing and dry-cleaning processes, as well as benzene, toluene, ethylbenzene, and xylenes (BTEX) associated with gasoline and diesel fuel. These parameters were selected as CPCs for groundwater at the RSC Property based on the historical presence of the retail fuel outlet on the subject site. Petroleum Hydrocarbons, Fractions 1 through 4 (PHCs F1-F4) - this suite of parameters encompasses gasoline (Fraction 1), diesel and fuel oil (Fraction 2), and heavy oils (Fractions 3 and 4). PHCs F1-F4 were selected as CPCs for the RSC Property based on the historical presence of the retail fuel outlet on the subject site. PHCs may be present in the soil matrix, sorbed to soil particles, as well as in free or dissolved phase in the groundwater system. PHCs are generally considered to be LNAPLs light non-aqueous phase liquids, indicating that when present in sufficient concentrations above the solubility limit, they will partition into a separate phase above the water table, due to their lower density. Subsurface Structures and Utilities The subject site is located in a municipally serviced area. The former institutional building is serviced with municipal water, storm, and sanitary sewer services, as well as with electricity and gas. Service trenches are present between Wellington Street West and the institutional building. patersongroup

50 Mr. Simon Taggart Page 4 File: PE2905-MEMO.01 CSM In general, underground service trenches may have the potential to affect contaminant distribution and transport at the subject site by providing preferential pathways for contaminant migration. However, underground service trench elevations were above the observed water table in the vicinity of the RSC Property, and no contaminant sources or were observed on the subject site at the time of Paterson s 2015 Phase II ESA. No visual or olfactory evidence of contamination was encountered during excavation for the redevelopment of the subject site. As such, subsurface utilities are not considered to have affected contaminant transport or distribution at the subject site. All groundwater results from the 2015 Phase II ESA were in compliance with the selected MOECC Table 3 standards. No subsurface structures were observed at the subject site. All pumps, tanks, and piping associated with the former retail fuel outlet at the subject site had been removed before Paterson's involvement with the subject site. No subsurface structures were encountered during excavation for site redevelopment.. Physical Setting Site Stratigraphy The site stratigraphy, from ground surface to the deepest aquifer investigated, prior to excavation, consisted of: Fill material, consisting of sandy gravel to silty clay, varying in thickness from 0.69 to 2.97 m. Groundwater was not encountered in the fill layer. A layer of glacial till, consisting of silty sand, trace gravel, encountered at depths varying from 0.69 to 2.97 m, and varying in thickness from 0.97 to 2.06 m. The glacial till layer was not encountered in the boreholes on the northwest portion of the site. Groundwater was not encountered in this layer. Grey limestone bedrock of the Middle Ordovician Bobcaygeon Formation. Bedrock was encountered at depths ranging from 0.9 to 3.8 m below existing ground surface at the subject site, with at least 2 m of overburden present over the bedrock across the majority of the site. Groundwater was encountered in the bedrock unit at the subject site. The bedrock is interpreted to function as a local aquifer in the vicinity of the subject site. This is the deepest unit investigated. It is noted that all soils and a significant amount of bedrock has been excavated from the northern portion of the subject site. The purpose of this excavation was not site remediation or the removal of contaminated soil, but instead to allow for the construction of an underground parking garage at the subject site. patersongroup

51 Mr. Simon Taggart Page 5 File: PE2905-MEMO.01 CSM Hydrogeological Characteristics Groundwater was encountered in the limestone bedrock unit. This unit is interpreted to function as a local aquifer at the subject site. Water levels were measured at the subject site on June 19, Groundwater was encountered at depths varying from 0.22 to 5.88 m below the base of the excavation. Water levels are shown on Drawing PE The water level at BH3-15 (5.88 m below base of excavation) was inconsistent with the water levels observed in the other monitoring wells at the subject site (between 0.22 and 0.89 m below base of excavation). Given that only two days elapsed between the drilling of the wells and the measurement of water levels, it is our interpretation that the water level in BH3-15 did not have sufficient time to stabilize. BH3-15 was not included in groundwater contour mapping for the subject site. Based on the groundwater elevations from the June 2015 monitoring event, groundwater contour mapping was completed and the horizontal hydraulic gradient for the subject site was calculated. Groundwater flow at the subject site appears to be in a westerly direction. As such, the groundwater monitoring wells installed at the subject site are considered to correctly situated to intercept any potential groundwater contamination resulting from the identified APECs. A hydraulic gradient of approximately 0.04 m/m was calculated. Approximate Depth to Bedrock Bedrock at the subject site was encountered at depths ranging from 0.9 to 3.8 m below ground surface prior to excavation activities for site development, with at least 2 m of overburden present across the majority of the site. Approximate Depth to Water Table The observed depth to water table at the subject site varied between 0.22 m and 5.88 m below the base of the excavation. Excluding the measurement of 5.88 m below the base of the excavation, water levels of 0.2 to 0.9 below the base of the excavation are considered to be more representative. Sections 41 and 43.1 of the Regulation Section 41 of the Regulation (Site Condition Standards, Environmentally Sensitive Areas) does not apply to the subject site, in that there are no Environmentally Sensitive Areas in the vicinity of the RSC Property. patersongroup

52 Mr. Simon Taggart Page 6 File: PE2905-MEMO.01 CSM Section 43.1 of the Regulation does not apply to the subject site in that the subject site is not a Shallow Soil Property, the original depth of soil at the property having been more than 2 m over the majority of the site. Furthermore, the subject site is not within 30 m of a water body. Fill Placement Fill material was identified on the subject site during the previous subsurface investigations by Paterson and Pinchin. The fill material was tested and was found to be in compliance with the selected MOECC standards. No further information is available regarding the fill material. It is interpreted to have been placed concurrently with site development, or at the time of the decommissioning of the retail fuel outlet. Proposed Buildings and Other Structures It is our understanding that the RSC Property is to be redeveloped with a seven-storey mixed use commercial and residential building with up to two (2) levels of underground parking. The existing institutional building will be incorporated into the development. No further information is currently available. Existing Buildings and Structures A three-storey institutional building with one basement level is currently present on-site and will be incorporated into the proposed development. The building consists of a former Salvation Army orphanage and was most recently occupied by a community resource centre. No other existing buildings or structures are to be retained on-site. No environmental concerns were identified with respect to buildings or structures on the subject site. Water Bodies There are no water bodies on the subject site or within the Phase I study area. The closest water body is the Ottawa River, located approximately 1 km to the west of the RSC Property at its closest point. Areas of Natural Significance No areas of natural significance are present on the RSC Property or within the Phase I- ESA study area. patersongroup

53 Mr. Simon Taggart Page 7 File: PE2905-MEMO.01 CSM Environmental Condition Based on the findings of the Phase I ESA and Phase II ESA by Pinchin and the Phase I ESA and Phase II ESA by Paterson completed prior to the commencement of the redevelopment of the site, all soil and groundwater on the subject site were considered to be in compliance with the applicable MOECC Table 3 standards. Analytical test results for soil and groundwater prior to site redevelopment are presented on Drawing PE2905-1R. It is noted that although a groundwater monitoring well was installed and a groundwater sample was obtained as a component of the Paterson Phase II ESA, groundwater triangulation was not achieved. Consequently, during the site redevelopment process, Paterson supervised the completion of a supplemental Phase II ESA at the subject site, which involved the drilling of four (4) monitoring wells into the bedrock in the vicinity of the former retail fuel outlet on the subject site. All groundwater samples were in compliance with MOECC Table 3 standards. Furthermore, no visual or olfactory evidence of soil contamination was observed during the excavation of soil and rock from the subject site for development/grading purposes. This is consistent with the findings of the previous Phase II ESAs by Pinchin and Paterson. We trust that this information satisfies your requirements, Best Regards, Paterson Group Inc. Daniel J. Arnott, P.Eng. Report Distribution Tamarack (Westboro) Corporation Ontario Ministry of the Environment Paterson Group Inc. Paterson Group Inc. Head Office and Laboratory 154 Colonnade Road South Ottawa, Ontario K2E 7J5 Tel.: (613) Fax.: (613) Northern Office and Laboratory 63 Gibson Street North Bay, Ontario P1B 8Z4 Tel.: (705) Fax.: (705) St. Lawrence Office 993 Princess Street, Unit 100 Kingston, Ontario K7L 1H3 Tel.: (613)

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