What's in IRVINE RANCH WATER DISTRICT's water?
IRVINE RANCH WATER DISTRICT has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 444,800 people through 121,167 service connections.
IRVINE RANCH WATER DISTRICT's record against the rest of the country
IRVINE RANCH WATER DISTRICT has 4 violations on record in total, 2 of thems health-based - ranking it 6,904th of 12,903 systems by violation count, the 46th percentile nationally.
Against the CA average
CA's 803 covered systems average 5.8 health-based violations each; IRVINE RANCH WATER DISTRICT carries 2, not more than typical for the state. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
IRVINE RANCH WATER DISTRICT's most recent violation on record is dated 2020-01-09, with the most recent health-based one dated 2010-01-01. Last reported to EPA: 06/22/2026.
The concern categories on record
IRVINE RANCH WATER DISTRICT's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:
- Microbial contamination / treatment technique - flagged from: Coliform (TCR); Surface Water Treatment Rule
The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.
What IRVINE RANCH WATER DISTRICT's record does not cover
This is what IRVINE RANCH WATER DISTRICT reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. This record - 2 health-based violations on file for IRVINE RANCH WATER DISTRICT - 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.