Wastewater treatment upgrades result in major reduction of intersex fish
Upgrades to a wastewater treatment plant along Ontario’s Grand River, led to a 70 per cent drop of intersex fish within one year and a full recovery of the fish population within three years, according to researchers at the University of Waterloo.
![Kitchener wastewater treatment plant](/water-institute/sites/default/files/uploads/images/kitchener-wwtp.jpg)
Aerial photo of the Kitchener Wastewater Treatment Plant in 2016 (Credit: Region of Waterloo).