DESERT WATER AGENCY: EPA violation history, explained
DESERT WATER AGENCY has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 74,807 people get their water from it, across 23,885 connections.
Ranked against every other system in this dataset
Out of 12,903 systems in this dataset, DESERT WATER AGENCY ranks 4,419th by violation burden (66th percentile) - 9 violations total, 4 health-baseds.
Against the CA average
Among the 803 CA systems in this dataset, the average is 5.8 health-based violations - DESERT WATER AGENCY's 4 is at or below that. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
DESERT WATER AGENCY's most recent violation on record is dated 2018-01-01, with the most recent health-based one dated 2004-01-10. Last reported to EPA: 06/22/2026.
The concern categories on record
DESERT WATER AGENCY'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
- Radionuclides - flagged from: Combined Uranium
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 DESERT WATER AGENCY's record does not cover
DESERT WATER AGENCY's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. Between the utility's meter and DESERT WATER AGENCY's customers' taps is household plumbing, invisible to a system-level record ranked 4,419th of 12,903 by violation count. The guide to what this data misses covers that gap.