Sources:
www.wickedlocal.com/story/archive/2011/12/08/brown-water-explained-in-norton/38816881007/
www.boston25news.com/news/norton-devises-alternative-to-brown-water-problem/683806620/
www.nortonma.org/sites/g/files/vyhlif3606/f/uploads/47_elm_street_timeline.pdf
springwellwater.com/heavy-metals-in-water-the-risk-of-bioaccumulation