Most fresh water — other than glaciers — is found underground. All of the water in the lakes and rivers of the world accounts for a fraction of the world?s available freshwater resources. Less than 1% comes from surface water while 99 percent comes from the groundwater found in aquifers. Nevertheless, a fundamental question remains in our water-rich country: how much fresh water do we actually have? Groundwater is a strategic resource, currently supplying clean, abundant and relatively cheap freshwater to more than 10 million Canadians. This book represents the first comprehensive, synthesized single volume assessment of groundwater resources in Canada. Walkerton, water crisis, climate change, land use, drought, water energy, water bulk transfers, urbanization, transboundary aquifers — all of these are keywords and issues affecting Canadians today. This book represents the work of 45 noted Canadian ground water scientists. It provides a science-based overview and a collective understanding of Canada?s groundwater resources in order to support their sustainable use and protection. The narrative discusses in detail each Canadian ground water region within its geographic region, and analyzes the state of groundwater use today. Comprehensively illustrated with maps and charts, Canada's Groundwater Resources is an invaluable resource of any person concerned about today's most critical issue -WATER.