Sydenham Pearl Brownfield Remediation Project

Transcription

1 Sydenham Pearl Brownfield Remediation Project 2017 Conference - Brownfields: The Next Generation June. 15, 2017 Ed Taves Project Manager CH2M HILL Joshua Schram, BA Policy Planner City of Brantford

2 Presentation Overview Site Context Historical Background Pre-remediation Environmental Assessments Remediation Phases 2 &3 Key Project Challenges Next Steps

3 City of Brantford Population: 100,000 Single-tier municipality 2 Major Brownfield Projects Underway Brownfield projects managed by: *Planning Department Technical support from other departments

4 Site Context Site is comprised of 2 properties owned by the City of Brantford The site area is approximately 2.4 ha (6 acres) Mostly surrounded by a residential neighbourhood. 22 Sydenham Street directly abuts the CN rail line on the north side.

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7 Smaller companies went bankrupt vacant & underutilized infrastructure Prone to vandalism, fire, pests, squatters

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9 Project History Major industry vacated the Site and portions of onsite infrastructures were demolished After a subsequent fires, the City acting as the agent on behalf of the Medical Officer of Health, demolished all remaining structures on site. The City proceeded with environmental investigations of the site, the demolition of above ground structures, and removal of underground storage tanks The City entertained options for purchase and sale of the property. City decided to undertake remediation and redevelopment of the site To achieve parkland/residential standards

10 Project Funding 2012 Council approved $4.6 million to complete the remediation of the Sydenham Pearl Site to the highest environmental standards to support residential/parkland uses.

11 Remediation Program 2012 Phase One (Technical Background) Phase Two Environmental Site Remediation Risk Assessment 2016 Risk Assessment-Soil Cap Requirement Site Risk Assessment Approval 2017 Record of Site Condition Finalized regulatory procedures Consideration for Redevelopment

12 Project Mobilization 2012 RFP: Phase One and Two Environmental Site Assessments CH2M HILL Retained to oversee remediation and provide contract administration Milestone Environmental Contracting was hired by the City to complete the remediation of the site, and remediation was overseen by CH2M HILL.

13 Phase Two Environmental Site Assessment (17 Sydenham)

14 Phase 2 - Remediation Program The remediation took 8 weeks to complete and included: The removal of underground storage tanks Excavation and offsite disposal of petroleum hydrocarbons in soil Insitu-soil mixing to break down volatile organic compounds in soil and groundwater

15 Phase 2 - Remediation Program

16 Lang Tool

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18 Phase 3: Soil Cap Design and Construction Phase 3 took roughly 8-10 weeks to complete and included: Asphalt stripping, transport and disposal excavation, Crushing and reuse of concrete onsite; Berm construction (CN requirement); Installation of non-woven geotextile and soil capping over the entire site and; Hydro-seeding, tree planting, and sodding.

19 Phase 3 Photos Preparation for Concrete Crushing Stockpiling of Crushed Concrete

20 Phase 3 Photos Infiltration Gallery 22 Sydenham Street Infiltration Gallery 17 Sydenham Street

21 Phase 3 Photos Non-woven geotextile installed on 17 Sydenham Installation of geogrid on 17 Sydenham

22 Phase 3 Photos 22 Sydenham (March 2016) 22 Sydenham (Nov 2016) (City of Brantford Planning Department, 2016)

23 22 Sydenham (Sep 2016) (City of Brantford Planning Department, 2016) 22 Sydenham (Nov 2016)

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25 Key Project Challenges Adjacent Residential Encroachments Public Communication

26 Next Steps: Public Consultation Future Uses The Public Options Consultants City of Brantford

27 Project Timelines Task Schedule Record of Site Condition Fall 2017 Staff Report to Council Fall 2017 Public Communication & Information Fall/Winter 2017

28 THANK YOU - QUESTIONS? Joshua Schram, BA Policy Planner City of Brantford JSchram@brantford.ca Ed Taves Project Manager CH2M HILL etaves@ch2m.com