The City of Toronto awarded GHD a contract to serve as lead design consultant on the upgrade of Toronto’s Humber Wastewater Treatment Plant, North Plant.
The project will use a Construction Manager at Risk delivery model, the first time the approach has been used since the project’s inception. It was chosen to promote collaboration, innovation and cost control, according to the firm. The work will involve modernizations of the secondary treatment system that include infrastructure replacements and reduction of greenhouse gas emissions from the plants.
20 thousand dollars
Average annual return for 2070 of investment in climate transition
Source: United Nations Environment Program Global Environment Outlook 7
GHD’s role spans the entire duration of the project and beyond, and involves selecting the CMAR contractor, providing preliminary and detailed design, coordinating permitting and developing a maximum guaranteed price assessment and construction phase services, including post-construction support.
Sub-consultants include wastewater consultancy firm All Things Collaborative Delivery; Cobalt Water Global, a climate technology start-up focused on the decarbonisation of the water sector; project management company MGAC; wastewater treatment consultant JenTech Inc.; and the Polytechnique Montreal engineering school.
The Humber treatment plant, which serves about 662,000 people according to the city’s most recent wastewater treatment plant report, is the second largest of its four plants. It was inaugurated in 1960.
Work at the North Plant is part of a series of ongoing upgrades to the 125 mgd plant under municipal utility Toronto Water’s capital plan, including earlier work at the South Plant, with Black & Veatch providing design and construction management services and Alberici Constructors as the general contractor.
