Pollution Control Centre

The city has one Class III advanced Primary Treatment pollution control centre located at the eastern city limits along the St. Lawrence River. The plant utilizes physical/chemical processes to remove solids and sodium hypochlorite to aid in disinfection of the treated wastewater prior to discharge to the river.


 Capacity Per Day

 Average Flow Per Day


21.8 Million litres per day. When it rains the flow expands to 42 million litres per day.

18.4 million litres per day.

The flow can reach 55 million litres per day under heavy rain.

Physical/Chemical Primary

Sodium Hypochlorite (disinfectant)