Wetland construction to rehabilitate radiation polluted tailings

Wetland construction to rehabilitate radiation polluted tailingsThere is a dam near to my house that has been badly polluted by radioactive tailings. I would very much like to rehabilitate it, most likely by constructing a wetland. as it is causing a danger to the homeless people that have moved into the abandoned houses in the area. Does anyone have any suggestions or would like to get involved in any way?