Duffin Creek Wastewater Treatment Plant

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 (YDSS).

As a $575M project upgrade, it is one of the largest sewage treatment plants in Canada, the WPCP currently processes sewage from 900,000 York Region residents and 200,000 in Durham Region.