Read the full story from Minnesota Public Radio.
Start on the Canadian border at Lake of the Woods and drive some 425 miles south across the length of Minnesota to Okamanpeedan Lake on the Iowa border.
Both those lakes fail to meet at least one water-quality standard. So do thousands of the lakes and streams in between — about 40 percent of Minnesota’s water bodies don’t meet pollution standards. That’s according to the state Pollution Control Agency, which sent its most recent draft impaired waters list to federal officials this month.
Once a body of water gets dirty, it’s difficult to clean up. Removing pollutants from a body of water is costly, time-consuming and rare.
But it’s not impossible.