City of Orange, CA Water Quality
City of Orange: EPA violation history, explained
City of Orange's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 120,770 people get their water from it, across 35,551 connections.
How this compares nationally
City of Orange has 2 violations on record in total, 0 of them health-based - ranking it 11,864th of 12,903 systems by violation count, the 8th percentile nationally.
How City of Orange compares within CA
CA's 804 covered systems average 5.8 health-based violations each; City of Orange carries 0, not more than typical for the state. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
The last violation EPA has on record for City of Orange is from 2018-01-10. Last reported to EPA: 06/22/2026.
What this data is and is not
Everything on this page is City of Orange's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. This record - 0 health-based violations on file for City of Orange - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.