Drinking water from Lake Michigan has started to flow to customers in Waukesha wuwm.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from wuwm.com Daily Mail and Mail on Sunday newspapers.
Under an agreement, Waukesha must treat and return all of the water it uses from Lake Michigan. One group is keeping a close eye on what is getting pumped back to the lake.