The schools where the elevated levels of lead were found are: Schools 6, 25, 27, 31, 11 and 23.
Water at the School 23 annex was found to have acceptable levels of lead.
The lead testing was discovered as part of the district's voluntary participation in a federal Evironmental Protection Agency program.
Lead poisoning can cause neurological problems, reduced cognitive abilities, nausea, abdominal pain, irritability, headaches and, in extreme cases, seizure and coma.
