It will cost about $6 billion to repair and upgrade Minnesota's aging drinking water systems, according to a 2007 study, and around $4.5 billion more to fix its sewer systems. A water-main break released 3 million gallons of water last week in Duluth, Minn., where half of the city's 426 miles of underground pipes are more than 80 years old. "It all comes down to funding and how much people are willing to pay for the water that they receive," said Steve Schneider, St. Paul's Regional Water Services general manager.

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