Sydenham Pearl Brownfield Remediation Project 2017 Conference - - - PowerPoint PPT Presentation

Sydenham Pearl Brownfield Remediation Project

2017 Conference - Brownfields: The Next Generation June. 15, 2017

Joshua Schram, BA Policy Planner City of Brantford Ed Taves Project Manager CH2M HILL

Presentation Overview

• Site Context
• Historical

Background

• Pre-remediation

Environmental Assessments

• Remediation

Phases 2 &3

• Key Project

Challenges

• Next Steps

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

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.

• Smaller companies went

bankrupt

• vacant & underutilized

infrastructure

• Prone to vandalism, fire, pests,

squatters

Project History

1991 - 2001

• Major industry vacated the Site and portions of onsite infrastructures were

demolished. 2002 - 2004

• 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
• f above ground structures, and removal of underground storage tanks.

2005 - 2011

• 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

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.

Remediation Program

2012 Phase One (Technical Background) 2013-2015 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

Project Mobilization

2012 RFP: Phase One and Two Environmental Site Assessments CH2M HILL Retained to oversee remediation and provide contract administration 2013-2015 Milestone Environmental Contracting was hired by the City to complete the remediation of the site, and remediation was overseen by CH2M HILL.

Phase Two Environmental Site Assessment (17 Sydenham)

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

Phase 2 - Remediation Program

Phase 2 - Remediation Program

Lang Tool

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.

Phase 3: Soil Cap Design and Construction

Preparation for Concrete Crushing Stockpiling of Crushed Concrete

Phase 3 Photos

Phase 3 Photos

Infiltration Gallery 22 Sydenham Street Infiltration Gallery 17 Sydenham Street

Non-woven geotextile installed on 17 Sydenham Installation of geogrid on 17 Sydenham

Phase 3 Photos

22 Sydenham (March 2016) 22 Sydenham (Nov 2016)

(City of Brantford Planning Department, 2016)

Phase 3 Photos

22 Sydenham (Nov 2016)

(City of Brantford Planning Department, 2016)

22 Sydenham (Sep 2016)

Key Project Challenges

• Adjacent Residential
• Encroachments
• Public Communication

Options

The Public City of Brantford Consultants

Next Steps: Public Consultation – Future Uses

Project Timelines

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

THANK YOU - QUESTIONS?

Joshua Schram, BA Policy Planner City of Brantford JSchram@brantford.ca Ed Taves Project Manager CH2M HILL etaves@ch2m.com