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 Cl
Lake Simcoe Region Conservation Authority Open Data2025-03-06 更新10
Polygon file displaying CTC's TRSPA Highly Vulnerable Aquifers (HVA). These areas are more susceptible to contamination moving from the surface into the...
The HVA layer was developed to satisfy requirements of the Source Protection Plan for the Credit Valley, Toronto and Region and Central Lake Ontario region (CTC-SPC 2015) under the Clean Water Act (20