Bonnybrook Wastewater Treatment Plant is the largest of three wastewater treatment plants serving Calgary. Originally built in the 1930’s, Bonnybrook is undergoing its most substantial upgrade to date that will see its total treatment capacity increase to nearly 1.4 million citizens when completed in 2026. The second phase of the Plant D Secondary Treatment expansion includes the construction of a third BNR reactor and two additional secondary clarifiers. This will increase the capacity of the Bonnybrook Waste Water Treatment Plant by an additional 108,000 Equivalent Population.
