The Clean Water Act ensures that communities can identify potential risks to their drinking water supplies, and take actions to reduce these risks. It brings members of the public together with:

  • municipalities
  • conservation authorities
  • industry and business
  • community groups
  • farmers and landowners

to meet common goals to keep Ontario’s drinking water safe.

Learn More About the Act

The Science Behind Drinking Water Source Protection

The Clean Water Act requires local multi-stakeholder source protection committees to prepare science based assessment reports for designated watershed areas.

These reports identify and assess threats to drinking water sources listed in the committee’s terms of reference. The information they contain is used to prepare the source protection plans. These science-based plans will tell what actions are required to address threats to drinking water sources.

Learn more about the Technical rules for preparing the Assessment Reports
Learn more about the Tables of Drinking Water Threats