(CNN) -- The Supreme Court on Tuesday agreed to take up a case next term that relates to the Clean Water Act and the Environmental Protection Authority's authority to regulate pollutants that find their way into navigable water.
The EPA and courts have not issued clear guidance on this. Depending upon how the court rules, it could have big implications that could expand the government's ability to regulate.
The law protects navigable waters -- rivers, oceans and lakes -- from pollution. The question presented is whether it also covers pollution that has traveled some distance from a pipe or well through groundwater and made its way into navigable water