Ausable Bayfield Conservation Authority

Sinkhole Implementation Strategy

Sinkholes are circular or elliptical closed depressions in the surface, usually formed by the dissolution of underlying soluble bedrock.

These large depressions found in parts of this watershed allow surface water to enter the groundwater without some of the natural filtration that would normally occur. That is why it is so important to manage practices appropriately near these rapid pathways to our groundwater sources.

A Sinkhole Implementation Strategy was developed by the County of Huron, the Municipality of Huron East, and the Ausable Bayfield Conservation Authority with input from various other interested groups.

The goal of this strategy was to both protect and enhance the quality of the water draining into sinkholes as we know that sinkholes provide a direct connection between surface and groundwater.

Considered options included spills contingency planning, promoting uptake of Best Management Practices (BMPs) and amending Official Plans and Zoning Bylaw Policies where practical.


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