What's in TUCSON WATER CORONA DE TUCSON's water?
TUCSON WATER CORONA DE TUCSON has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 10,217 people get their water from it, across 3,649 connections.
Ranked against every other system in this dataset
TUCSON WATER CORONA DE TUCSON has 43 violations on record in total, 1 of them health-based - ranking it 7,495th of 12,903 systems by violation count, the 42th percentile nationally.
How TUCSON WATER CORONA DE TUCSON compares within
's 244 covered systems average 11.2 health-based violations each; TUCSON WATER CORONA DE TUCSON carries 1, not more than typical for the state. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for TUCSON WATER CORONA DE TUCSON is from 2011-01-10 (health-based: 2001-01-09). Last reported to EPA: 05/14/2026.
What kind of problem, specifically
TUCSON WATER CORONA DE TUCSON'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)
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 this data is and is not
This is what TUCSON WATER CORONA DE TUCSON 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. Between the utility's meter and TUCSON WATER CORONA DE TUCSON's customers' taps is household plumbing, invisible to a system-level record ranked 7,495th of 12,903 by violation count. The guide to what this data misses covers that gap.