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We monitor 57 long-term groundwater monitoring wells at 35 locations across the watershed. Thirty-eight of these wells are a part of the Provincial Groundwater Monitoring Network.
The wells are monitored for groundwater levels and the chemistry of the water. This information is used to support various efforts including low water response, drinking water source protection, climate change studies, planning applications and university research.
Read the Groundwater Monitoring Report (2.9MB PDF) to learn more about groundwater within the Grand River watershed. (Please note this document may not be accessible to people with disabilities. If you have a disability and require a document in an alternate format, please contact us.)
The Provincial Groundwater Monitoring Network (PGMN) is a partnership of the Ontario Ministry of the Environment and Climate Change and all 36 Ontario conservation authorities, including the GRCA.