CLARION WATER SUPPLY: EPA violation history, explained
CLARION WATER SUPPLY has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 2,810, over 1,284 connections.
How this compares nationally
CLARION WATER SUPPLY has 4 violations on record in total, 1 of them health-based - ranking it 8,902th of 12,903 systems by violation count, the 31th percentile nationally.
How CLARION WATER SUPPLY compares within IA
IA's 203 covered systems average 3.5 health-based violations each; CLARION WATER SUPPLY carries 1, 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 CLARION WATER SUPPLY is from 2020-01-08 (health-based: 2006-01-05). Last reported to EPA: 06/17/2026.
What kind of problem, specifically
CLARION WATER SUPPLY'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
CLARION WATER SUPPLY'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. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 4 logged violations can see. The guide to what this data misses covers that gap.