COVID-19 wastewater monitoring dashboard: About

This dashboard provides data about the levels of COVID-19 and variants found in the wastewater (sewage) of different communities across Canada. This information can help assess the levels of COVID-19 in those communities.

We’re working with our partners across Canada as part of a pan-Canadian wastewater monitoring network to track the spread of the virus that causes COVID-19 (SARS-CoV-2). 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 COVID-19 levels over time in some communities in Canada. It provides a weekly breakdown of COVID-19 variants circulating across Canada. Over time as the virus grows and spreads, it gains small changes in its genetic material. These changes are mutations that produce new variants of the virus.

The data comes from sewage samples submitted for testing to the National Microbiology Laboratory or participating partner laboratories. Trend data are presented as 7-day rolling averages, and are based on polymerase chain reaction (PCR) testing. Genomic data summarize the lineages detected over a recent 10-week period.

Some communities monitor their own wastewater and publish their own data. For more information, please refer to the list of Canadian wastewater COVID-19 monitoring dashboards and websites.

Why we monitor wastewater

The virus that causes COVID-19 is shed in the stool (feces) of people while they’re infected. Even if a person doesn’t have symptoms, they still shed the virus in their feces, urine or while brushing their teeth. The virus can then be detected by testing the community’s wastewater. Wastewater monitoring only detects the virus in a community or institution. It can’t identify single cases or households.

By monitoring wastewater we can:

Wastewater monitoring can provide an early warning of COVID-19 in a community or setting. This facilitates an early public health response, which may also include reminding the public about personal protective measures.

Wastewater monitoring partners

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 monitoring networks nationally.

Canadian Wastewater Survey (CWS)

The Public Health Agency of Canada has been partnering with Statistics Canada on the Canadian Wastewater Survey (CWS) since March 2020 to conduct wastewater monitoring in Halifax, Montréal, Toronto, Edmonton and Vancouver.

For more information on the CWS please refer to:

Manitoba

We work with the cities of Brandon and Winnipeg and the province of Manitoba to conduct wastewater monitoring in 4 wastewater treatment plants.

New Brunswick

VitalitéNB provides wastewater monitoring data from:

  • Bathurst
  • Campbellton
  • Edmundston
  • Fredericton
  • Miramichi
  • Moncton
  • Saint John

Newfoundland and Labrador

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

Nova Scotia

We work with the province as well as the following towns and communities to conduct monitoring in 6 wastewater treatment plants:

  • Battery Point
  • Bridgewater
  • Central Colchester
  • Dominion-Bridgeport
  • Trenton
  • Yarmouth

Prince Edward Island

We work with the province of Prince Edward Island and the following cities, towns and communities to monitor 4 wastewater treatment plants and a wastewater treatment lagoon:

  • Alberton
  • Charlottetown and Summerside
  • Montague
  • Souris
  • Stratford

Saskatchewan

We work with the following partners to conduct wastewater monitoring at Regina’s wastewater treatment plant:

  • City of Regina
  • Saskatchewan Health Authority
  • University of Regina
  • EPCOR Water Prairies to conduct COVID-19

On June 1, 2023, Saskatchewan Health Authority (SHA) took over wastewater monitoring from the University of Saskatchewan at 3 wastewater treatment plants (Saskatoon, Prince Albert, and North Battleford). SHA also works with various cities, towns, villages and communities to conduct wastewater monitoring across the province:

  • Assiniboia
  • Battleford
  • Birch Hills
  • Canora
  • Estevan
  • Île-à-la-Crosse
  • La Ronge
  • Lumsden
  • Maple Creek
  • Meadow Lake
  • Melville
  • Moose Jaw
  • Pasqua
  • Southey
  • Swift Current
  • Unity
  • Watrous
  • Weyburn
  • Yorkton

Yukon

To conduct wastewater monitoring at a lift station in the village of Haines Junction, we work with:

  • Government of Champagne and Aishihik First Nations
  • One Yukon Coalition
  • Village of Haines Junction

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