Duffin Creek Water Pollution Control Plant, Pickering

The Regional Municipalities of York and Durham jointly own the Duffin Creek Water Pollution Control Plant, located on the shore of Lake Ontario in the City of Pickering, Ontario. This facility, which receives and treats 90 per cent of the wastewater generated by York Region, as well as wastewater from Pickering and Ajax in Durham Region, is a critical component of the York Durham Sewage System. The YDSS was first constructed by the Province of Ontario in the late 1970s and early 1980s. The idea for this centralized sewage treatment system dates back to 1965 when the province decided that no additional sewage treatment facilities would be built on the Don and Rouge Rivers and Duffins Creek. The YDSS converges at the Duffin Creek WPCP and discharges clear, treated wastewater to Lake Ontario. ()