As one of the most complex freshwater ecosystems in the world and a popular tourism spot, the water quality of Georgian Bay is extremely important. The quality of drinking and recreational water in Georgian Bay is threatened by:

  • Microbial contaminants such as bacteria, parasites and viruses
  • Sewage and grey water
  • Toxic chemicals such as pesticides, fertilizers and other agricultural run-off
  • Industrial effluents

Protecting water quality is a team effort between the province, Source Protection Authorities, municipalities and individuals.

Drinking water management

The District of Muskoka's Water Quality Management System Operational Plan guides the management of Muskoka's water treatment and distribution systems. View past water and wastewater compliance reports on the District's website. You can arrange a tour at any of the water and wastewater treatment plants by contacting the Engineering and Public Works Department at 705-645-6764.

Reports and studies

In an effort to keep the waters of Georgian Bay safe and clean, ongoing water quality testing is necessary. Many of the environmental and sustainability organizations that operate in Muskoka collect samples and share the data with community members. Find reports with our partners at:


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