Highly Vulnerable Aquifer (HVA)
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Last data update: April 19, 2017 A polygon layer identifying shallow aquifers with high groundwater vulnerability (as defined following the Director Technical Rules for Assessment Reports under the Clean Water Act. Highly vulnerable aquifers were identified through a series of modelling studies completed by consultants. See ourwatershed.ca for more information.
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Conservation Ontario创建时间：
2025-03-06
