Source Water Protection Program

Guelph is located in the Grand River watershed. Guelph’s source water protection policies are part of the Grand River Source Protection Plan which is in turn part of the Lake Erie Source Protection Region.The City of Guelph and the Lake Erie Source Protection Committee invited residents, businesses and organizations to provide information about, and receive feedback on the Grand River Source Protection Plan as it was developed.

Grand River Source Protection Plan

The Grand River Source Protection Plan establishes the policies and programs for managing significant drinking water threats, and identifies:

  • the approach to policy development
  • who is responsible for taking action (the implementing body)
  • timelines
  • how progress will be measured

Guelph/Guelph-Eramosa Tier 3 Water Budget Study

The goal of the Guelph Guelph/Eramosa Tier 3 study is to measure current and future sustainability of municipal drinking water systems in light of municipal growth and climate change.

Learn more about Guelph/Guelph-Eramosa Tier 3 Water Budget Study

Explanatory document

The Explanatory Document provides background and rationale for selecting specific policy approaches to address the drinking water threats.

Annual reporting

View Guelph’s Source Protection Plan annual reports

Terms of Reference

The Terms of Reference outline the steps taken to develop and implement a Source Protection Plan. It sets out the roles and responsibilities of municipalities, Conservation Authorities, and the Ministry of the Environment, and includes all municipal water supply sources protected by the Grand River Source Protection Plan.

Assessment Report

The Assessment Report is a science-based document that describes the study area, and identifies vulnerable areas, including:

  • existing municipal water supply sources
  • areas where aquifers are being recharged
  • aquifers vulnerable to contamination
  • significant threats to our municipal drinking water

Related agencies and policies




Guelph Source Water Protection
519-822-1260 extension 3320