Water at 12 schools in the Chino area tested positive for lead above levels allowed by the federal government, the Chino Valley Unified School District announced Friday.
The district in late October had asked a San Bernardino lab to test drinking water quality at all of its 35 schools, which are in Chino, Chino Hills and Ontario.
“The report came back yesterday that there were 12 of our schools that have lead levels above what they’re supposed to,” Superintendent Wayne Joseph said Friday afternoon, the Inland Valley Daily Bulletin reported.
Results showed water from some fixtures had levels of lead above 15 parts per billion, the Environmental Protection Agency’s threshold at which action must be taken, according to a letter sent to parents by the school district.
The district shut down “the suspect fixtures and drinking fountains” and provided bottled water for student and staff, the district said in a letter to parents specifically about Don Lugo High School in Chino.
Further tests at the schools were set to be conducted, the district stated.
State law requires schools to test for lead, which when present in drinking water can result in delays in physical and mental development and other health problems in children, according to the EPA.