Waterloo Wastewater Treatment Plant Upgrade – Contract 3

Location: Waterloo, ON

Graham’s scope of work on this project included general site work modifications including new yard piping and pavement, the demolition of the existing Administration Building and Primary Clarifiers, the tie in of raw wastewater trunk sewer, and the expansion of raw wastewater truck sewer.
Also included was the installation of primary influent piping, headworks equipment, biosolids treatment equipment, and new electrical, instrumentation and control systems. New construction included the Headworks Building and Biofilter, a new Biosolids Building and Ferric Chloride Feed System, and a new raw wastewater plant bypass.

Graham self-performed all concrete works (10,000 m3 of concrete, 25,000 m2 of formwork).

Contract Value

$49M CAD

Prime Consultant


Project Owner

Regional Municipality of Waterloo

Contract Format

Stipulated Price

Completion Date

May 2014

Contract Duration

40 months