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2017-07-18
Auteur
Michael D'Andrea, City of Toronto - Engineering & Construction Services

Congrès Infra 2017

4 au 6 décembre

Biographie du conférencier

Michael D’Andrea is Chief Engineer and Executive Director of Engineering & Construction Services for the City of Toronto, where he leads a division of 575 professional and technical staff and is responsible for the engineering design and construction of the City of Toronto's water, wastewater, stormwater, transportation and solid waste infrastructure, valued at over $500 million annually.

Previously, Michael was the Director of Water Infrastructure Management for Toronto Water, where he was responsible for infrastructure planning, capital programming, asset management and policy development in support of the City of Toronto’s water, wastewater and stormwater management infrastructure.  In this role, he led several environmental stewardship initiatives, including Toronto’s Wet Weather Flow Master Plan to address the impacts from stormwater runoff and combined sewer overflows to area watercourses and the Lake Ontario waterfront; and the City's climate change adaptation strategy to reduce the risk of sewer backups and flooding from extreme storms.
 
Michael D'Andrea has more than 30 years of experience in the municipal engineering, water, wastewater and construction services industry, having worked in engineering consulting, the Ontario Ministry of the Environment and Climate Change, and the City of Toronto.  

Résumé de conférence

This presentation will provide the latest details about the largest combined sewer overflow (CSO) project in the history of the City of Toronto.  For context, the City of Toronto, with a population of 2.8 million and an area of approximately 640 sq. km., spans six watersheds, which flow to the City's Lake Ontario waterfront. As with many cities around the world, urban development within Toronto and surrounding area has resulted in intense pressures on the ecosystem and the alteration of the natural environment and hydrologic cycle.  This situation has resulted in increased stormwater runoff and polluted discharges from storm sewers and CSOs, which have contributed to the degradation of water quality conditions in area watercourses and the Lake Ontario waterfront, which has been designated as one of forty-three areas of concern in the Great Lakes Basin by the International Joint Commission.

In response, the City developed a comprehensive 25 year Wet Weather Flow Master Plan.  This Wet Weather Flow Master Plan incorporates a new philosophy that emphasizes control of stormwater runoff at source; and a hierarchical approach for the management of stormwater runoff from source through to the end-of-pipe. 

Of the many projects comprising the Plan, the most significant project is the Don River and Central Waterfront Project, which is aimed at addressing most of Toronto's remaining CSOs.  The Project, at an estimated implementation cost of $2 billion, uses a "systems integration" approach to effectively manage the wet weather flows identified in the Plan and the longer term wastewater collection servicing needs within the City's largest trunk sewer system (servicing over 25% of the City), including redundancy of operation, as a single consolidated project.   A dedicated high rate treatment facility will be integrated within the overall project to treat the wet weather flows captured in the planned deep tunnel system.  Construction for the project is scheduled to begin in 2017 and, once completed, will ultimately lead to the "delisting" of Toronto as an Area of Concern in the Great Lakes Basin.

 

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