Halton-Hamilton Source Protection Region




Conservation Halton Watershed

Conservation Halton’s area of jurisdiction, or Watershed, includes 1,059 km2, 963 km2 on land and 96 km2 water-based (HRCA, 1983).This comprises the watersheds of all streams entering into Lake Ontario from Joshua’s Creek to Grindstone Creek, as well as a distance of 6.44 km (4 miles) off the shoreline of Lake Ontario as defined in Order-in-Council 1386/73. 




Hamilton Conservation Authority Watershed

Hamilton Conservation Authority Watershed is 479 km2 with a watershed population of almost 400,000 residents. Two-hundred-and-eighty km2 (175 square miles) is land-based, with the balance comprised of the Hamilton Harbour and parts of Lake Ontario. The Hamilton Conservation Authority Watershed includes the drainage areas of Spencer Creek and its tributaries: Borer’s, Chedoke, Red Hill, Battlefield, Stoney, and Fifty Creeks and several small drainage areas originating above the Niagara Escarpment and outletting to Lake Ontario in the former city of Stoney Creek.