Tap Water Quality Report for San Bernardino, California
Track your tap water quality with EPA-verified data on contaminants, violations, and health guidelines, updated quarterly from official water system monitoring results.
San Bernardino, California tap water has 1000 total contaminants, with 26 being above EPA standards and 614 being above InTheTap suggested standards. There are 0 active violations. The primary water source is not specified, serving 0 residents.
Water Systems (137)
137 water systems serve San Bernardino, California. Select one or more to filter the data below.
Stay Updated
Subscribe to receive updates about water quality in San Bernardino, California and learn about ways to ensure your drinking water is safe.
Water Quality Analysis
Comprehensive analysis of your water quality, showing both detected contaminants and violations history. Note that exceeding EPA contaminant levels in a single test doesn't always constitute a violation, as violations typically require sustained exceedances or failure to follow required treatment protocols.
Water Analysis
View detected contaminants and concentration levels for your water system(s).