Looking for info...

Is there anyone out there who can give me some information as to how I find out about the water quality issues of Lake Q in Wakefield? I am specially wondering what the medical consequences would be if someone were to come in contact with the water for a period of time, for example swimming which I know is not allowed but why specifically? Would someone be apt to get ear infections, sinus infections, eye infections, skin infections? I am not an MD so just wondering the risks involved in swimming there.