Tap Water Quality Report for Orange, California

Last Provided Update:N/A
Next Expected Update:April 19, 2025

Track your tap water quality with EPA-verified data on contaminants, violations, and health guidelines, updated quarterly from official water system monitoring results.

Orange, California tap water has 537 total contaminants, with 24 being above EPA standards and 335 being above InTheTap suggested standards. There are 0 active violations. The primary water source is not specified, serving 0 residents.

Water Systems (22)

22 water systems serve Orange, California. Select one or more to filter the data below.

IRVINE RANCH WATER DISTRICT
Public Water System ID:CA3010092
Population Served:433,652
Primary Source:Surface water
Last Updated:Nov 15, 2024
Contact:
MOULTON NIGUEL WATER DISTRICT
Public Water System ID:CA3010073
Population Served:170,236
Primary Source:Surface water purchased
Last Updated:Nov 15, 2024
Contact:
SANTA MARGARITA WATER DISTRICT
Public Water System ID:CA3010101
Population Served:166,600
Primary Source:Surface water purchased
Last Updated:Nov 15, 2024
Contact:
CITY OF ORANGE
Public Water System ID:CA3010027
Population Served:117,150
Primary Source:Surface water purchased
Last Updated:Nov 15, 2024
Contact:
GOLDEN STATE WC - WEST ORANGE COUNTY
Public Water System ID:CA3010022
Population Served:114,185
Primary Source:Surface water purchased
Last Updated:Nov 15, 2024
Contact:
MESA WATER DISTRICT
Public Water System ID:CA3010004
Population Served:110,000
Primary Source:Surface water purchased
Last Updated:Nov 15, 2024
Contact:

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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).