Wastewater Surveillance at the Guelph Campus

The University of Guelph monitors the wastewater from residence buildings for SARS-CoV-2, the virus that causes COVID-19. Monitoring wastewater for the virus is proving an important surveillance tool.

The virus may be shed in the feces of those infected with SARS-CoV-2 days before they begin to feel ill which allows for the early detection of COVID-19 infection on campus. This wastewater surveillance scans samples in a non-invasive way by collecting sanitary sewage wastewater and analyzing evidence of the virus using PCR. Samples are an aggregate of all wastewater coming from a particular residence building and cannot identify any particular person.

The wastewater dashboard below captures information from University of Guelph residence buildings and shows daily levels as well as how the wastewater signal for SARS-CoV-2 is trending in each building.

Green – low to no signal

Yellow – low to moderate signal

Red – moderate to high signal

For an accessible version of this table, please contact datarequest@uoguelph.ca.


  • This dashboard is updated daily on business days, excluding holidays. However, there are some days data cannot be collected for various reasons, for example inclement weather.
  • The line graph is based on a rolling seven-day average. Only days where data has been collected are included in this calculation.

Current Actions

For the most up-to-date policies and practices in place for U of G residences, please visit the Student Housing Services COVID-19 webpage.

Ongoing Protective Measures