One state legislator wants to see lead testing because she says the substance is harmful to children's brains and development.
She says this comes after a couple schools in Maine were found to have lead in their water several years ago.
"We're going through extraordinary lengths to make sure that it's not in their homes," said Sen. Rebecca Millett, D-South Portland. "Eight hours a day they are in our schools, we need to take equal measures."
The bill's sponsor says schools would have access to state funding to make any needed renovations, and there could be a fine if schools don't test for lead in their drinking water.
How often schools would have to go through testing still needs to be worked out.