Lead levels in California schools' drinking water

A new state law requires California schools to test water for lead by July 1, 2019. Action is required if test results are higher than 15 parts per billion.

About a third of the state's 10,600 schools* have already been tested. This map shows the highest test result over the past two years at those schools. Lead is a toxic metal that can pose a health risk, especially to children. Read More

Lead levels in California schools' drinking water

Above lead limits. Corrective action required

Can be harmful, but no action required

State tests don't detect 5 ppb or less; Under 1 ppb is considered safe

Fixture refers to a drinking fountain, sink or other water source

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