Waters of the U.S. dictates which waterways are subject to federal clean water regulations.
Gov. Eric Holcomb visited East Chicago, Indiana, a week after declaring an emergency in the city due to lead and arsenic contamination.
In addition to aid for a lead contaminated neighborhood, East Chicago city officials seek guidance from the state to address lead found in drinking water.
Lawmakers in the House environmental affairs committee unanimously approved the bill.
Officials say it's possible up to 90 percent of homes in East Chicago have lead water lines.
The city attorney says nothing is certain at this point, and the city is still waiting on a response from the EPA.
Community groups on the east side of Indianapolis won a national award to redevelop an abandoned industrial site.
City officials told residents there were high lead levels recently measured in drinking water in the Calumet neighborhood.
Mayor Anthony Copeland told residents he sent letters to Gov. Mike Pence and Lt. Gov. Eric Holcomb requesting the emergency declaration.
The EPA found unsafe levels of lead in the drinking water of some homes.