Can Minnesota stop polluting its lakes, rivers?

At the Capitol, lawmakers are divided on how far to go to fix the problems. Gov. Mark Dayton has made water quality an issue central to his legacy. He's pushed to boost the number of buffer strips along Minnesota lakes and rivers to help trap farm runoff, although he stepped back from some of those efforts amid pressure from some lawmakers and farm groups.  In southeastern Minnesota, about 45 minutes from Rochester, farming and water quality are regular topics for debate. Statewide, the Minnesota Department of Health has detected nitrate pollution in more than 8,000 new drinking water wells. More than 1,000 had nitrate levels deemed unsafe for infants and pregnant women. And there's a lot of bad news. In urban and farm areas less than half of the lakes are considered "fully" swimmable because of phosphate and bacteria contamination. Agriculture may be the biggest culprit, but it is not the only one. Leaking septic systems, mercury in rain and urban runoff also contribute.