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To support improved groundwater geoscience knowledge for southern Ontario, a regional 3-D model of the surficial geology of southern Ontario has been developed as a part of a collaboration between the Ontario Geological Survey and the Geological Survey of Canada. Covering approximately 66,870...

A newer dataset developed in 2021, called Aquifer Vulnerability to Sea Water Intrusion, has replaced this version. This dataset remains available for download for comparison purposes. This dataset was developed as part of the Risk Assessment Framework for Coastal Bedrock Aquifers project...

A newer dataset developed in 2021, called Aquifer Vulnerability to Sea Water Intrusion, has replaced this version. This dataset remains available for download for comparison purposes. This dataset was developed as part of the Risk Assessment Framework for Coastal Bedrock Aquifers project...

A hydrogeological unit is defined as any soil or rock unit or zone that by virtue of its hydraulic properties has a distinct influence on the storage or movement of groundwater. It is considered the main dataset from the GGP point of view. Hydrogeological units are ranked into five levels (from...