The discovery of lead contamination has forced school officials to turn off drinking fountains and offer children bottled water at the Glenridge Elementary School in Landover Hills, Maryland Monday.

Now, parents who are just learning of the issue are complaining they have not been informed.

School officials were made aware of the lead contamination Monday, October 3 and fountains were shut off the next day, according to Prince George’s County Public Schools spokesperson Raven Hill.

School administrators offered students and staff bottled water. Hill said water coolers are being installed in the school this week.

“A letter will go home to parents tomorrow,” Hill said.

Hill admitted parents should have been informed earlier.