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COVID-19 wastewater surveillance dashboard

About the dashboard

We’re working with our partners across Canada as part of a pan-Canadian wastewater surveillance network to monitor the spread of COVID-19. Our partners include municipal, provincial and territorial governments, as well as other federal departments and academia.

The wastewater dashboard allows you to track and compare the COVID-19 levels in some major communities in Canada over time. Data are presented as a 7-day rolling average.

The data presented here come from sewage samples submitted to the National Microbiology Laboratory for testing.

Some communities are monitoring their wastewater for COVID-19. A list of other Canadian wastewater COVID-19 surveillance dashboards and websites is available.

Why we monitor wastewater

The virus that causes COVID-19 is found in the stool (feces) of infected people while they are infected. By monitoring wastewater (sewage) we can:

Because people can have COVID-19 without any symptoms, they can sometimes spread it without even knowing they have it. Wastewater monitoring can provide an early warning of COVID-19 in a community or setting. Even a few days of early warning can be critical to the success of public health interventions. It can also be an important source of information for people making their own personal health decisions.


We thank participating municipalities for submitting wastewater samples and associated data. We also thank federal, provincial and territorial public health professionals for valued input on the development of this program, as well as the many scientists supporting wastewater surveillance networks nationally.

Canadian Wastewater Survey (CWS)

We’ve been working with Statistics Canada on the Canadian Wastewater Survey (CWS) since March 2020 to conduct wastewater surveillance in Halifax, Montréal, Toronto, Edmonton, and Vancouver.

For more information on the CWS please refer to:

Cities of Charlottetown and Summerside, Prince Edward Island

We work with the cities of Charlottetown and Summerside and the Government of Prince Edward Island to conduct wastewater surveillance at 2 wastewater treatment plants.

City of Regina, Saskatchewan

We work with the city of Regina, Saskatchewan Health Authority, University of Regina, and EPCOR Water Prairies to conduct COVID-19 wastewater surveillance in the city’s wastewater treatment plant.

City of St. Johns, Newfoundland and Labrador

We work with the Government of Newfoundland and Labrador to conduct COVID-19 wastewater surveillance in the city’s wastewater treatment plant.

City of Winnipeg, Manitoba

We work with the city of Winnipeg and the province of Manitoba to conduct wastewater surveillance in the city’s 3 wastewater treatment plants.

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