ONEILL, CITY OF: EPA violation history, explained
ONEILL, CITY OF has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 3,705, over 1,716 connections.
ONEILL, CITY OF's record against the rest of the country
Out of 12,903 systems in this dataset, ONEILL, CITY OF ranks 1,192th by violation burden (91th percentile) - 18 violations total, 16 health-baseds.
How ONEILL, CITY OF compares within NE
Among the 64 NE systems in this dataset, the average is 8.9 health-based violations - ONEILL, CITY OF's 16 is above that. 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 ONEILL, CITY OF is from 2018-01-05 (health-based: 2018-01-05). Last reported to EPA: 06/30/2026.
What kind of problem, specifically
ONEILL, CITY OF'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); Revised Total Coliform 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 this data is and is not
Everything on this page is ONEILL, CITY OF's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 18 logged violations can see. The guide to what this data misses covers that gap.