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Great Lakes Today was created to highlight issues affecting the lakes. The main partners are WBFO (Buffalo), ideastream (Cleveland) and WXXI (Rochester).Browse more coverage here. Major funding for Great Lakes Today is provided by the Corporation for Public Broadcasting, a private corporation funded by the American People. Additional funding comes from the Northeast Ohio Regional Sewer District.

Who Uses the Great Lakes' Water?

Palisades nuclear power plant in Michigan [Nuclear Regulatory Commission]

By Dave Rosenthal

The Great Lakes/St. Lawrence River make up the world's biggest freshwater system -- and an enormously valuable resource. It supplies drinking water for millions of residents and powers the region's economy.

Last year, 42 million gallons were withdrawn from the basin each day, according to a new report from the Great Lakes Commission. Here's where it went.



Who uses the Great Lakes water?

Other fun facts from the commission's report:

-- The total volume of the Great Lakes/St. Lawrence River system is 6.5 quadrillion gallons -- an amount that would fill 9 billion Olympic size swimming pools.

-- Total withdrawals in 2016 represent a 1.1 percent decrease from the previous year.

-- Most of the water was returned to the basin. But nearly 5 percent of total withdrawals (2,106 million gallons per day) was consumed or otherwise lost to the basin.

-- Lake Michigan's watershed had the greatest withdrawal, followed by those of Lake Ontario and Lake Huron, respectively.