Cochrane River (Canada)
The Cochrane River is a river in Manitoba and Saskatchewan, Canada. Located in the boreal forest of the Canadian Shield, it flows from Wellbelove Bay on the northern end of Wollaston Lake in north-eastern Saskatchewan to the north-east end of Reindeer Lake in Manitoba. The river has a drainage basin of and is part of the Churchill River drainage basin.
Water supply and sanitation in Canada
Metro Vancouver's water system is one of the largest in North America. Almost 600 square kilometers of mountainous land is closed to public access to protect the large reservoirs which collect rain and snow melt. 
Three watersheds - the Capilano, Seymour and Coquitlam Watersheds are the water source for more than two million residents in the most populated urban region of British Columbia. Each watershed supplies about one-third of the region’s tap water. The regional district’s long-standing closed watershed policy is one component of a water supply system that provides multiple barriers to contamination, from source to tap.