I saw this on the Times Free Press site. I wander if this has anything to do with the herbicide that has been sprayed for the last several years?
http://www.timesfreepress.com/news/2014/jun/09/our-water-gets-an-a-advocacy-group-calls-for-a
http://www.timesfreepress.com/news/2014/jun/09/our-water-gets-an-a-advocacy-group-calls-for-a