Lake Ontario Waterkeeper

Lake Ontario Waterkeeper, a Swim Drink Fish initiative, inspires and stokes water watchers. It safeguards swimmable, drinkable, fishable water for everyone in Lake Ontario’s watershed through grassroots participation. It encourages people to document observations while spending time on the water.

The Toronto Monitoring Hub was established in 2016 by Swim Drink Fish and is hosted by Lake Ontario Waterkeeper. Volunteer citizen scientists work with the hub coordinator to sample in the Toronto Harbour on Tuesdays and Thursdays from May to October. In 2018 over 200 volunteers helped to sample the waters at four locations along the waterfront. To get involved with the Toronto Monitoring Hub, sign up to volunteer.

The Toronto Harbour is one of the few Swim Guide locations used by more boaters than swimmers and an area that is not monitored by the Toronto Public Health. The Toronto Hub is also one of the Swim Drink Fish citizen science monitoring hubs that as of 2018 received funding by Environment and Climate Change Canada’s Great Lakes Protection Initiative.


phone: 1 (416) 861-1237




address: 379 Adelaide Street West (Basement, west side)

Toronto, ON M5V 1S4

As of 2018:
This project was undertaken with financial support of the Government of Canada through the federal Department of Environment and Climate Change.
Ce projet a été realisé avec l’appui financier du gouvernement du Canada agissant par l’entremise du ministère fédéral de l’Environnement et du Changement climatique.

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Swim Guide
is supported by
* The RBC Foundation