Water Quality in Los Angeles, CA
Detailed water quality data for Los Angeles, California including contaminant levels, EPA comparisons, AquaScore™ grading, and treatment recommendations.
Water utility: LADWP.
Water source: Sacramento-San Joaquin Delta, Colorado River, local groundwater.
Key Contaminants Found
- Chromium (hexavalent)
- Total trihalomethanes (TTHMs)
- Haloacetic acids (HAA5)
- Bromodichloromethane
- Radiological contaminants
Los Angeles water travels hundreds of miles from the Sierra Nevada and Colorado River. Hexavalent chromium, the 'Erin Brockovich' chemical, is consistently detected above health guidelines.