Lenders and servicers, and the public in general, continue to be reminded of the importance of water: too much, too little, or too dirty. Just ask the people in Flint, Michigan, or now… Vermont? Lake Champlain, which straddles New York and Vermont and heads up into Quebec, supplies drinking water to 200,000 people. For the past several decades, though, phosphate pollution has fueled explosive blooms of the often-toxic cyanobacteria known as blue-green algae, which choke the ecosystem and threaten water supplies. Vermont is responsible for...