OBERLIN WATER DEPARTMENT: EPA violation history, explained
OBERLIN WATER DEPARTMENT had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. 8,600 people get their water from it, across 2,593 connections.
Ranked against every other system in this dataset
Out of 12,903 systems in this dataset, OBERLIN WATER DEPARTMENT ranks 3,274th by violation burden (75th percentile) - 9 violations total, 6 health-baseds.
Against the OH average
OBERLIN WATER DEPARTMENT's 6 health-based violations sit above the OH average of 5.5, across 394 systems statewide. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
OBERLIN WATER DEPARTMENT's most recent violation on record is dated 2024-01-03, with the most recent health-based one dated 2024-01-03. Last reported to EPA: 05/15/2026.
The concern categories on record
OBERLIN WATER DEPARTMENT'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: Interim Enhanced Surface Water Treatment Rule; Surface Water Treatment Rule
- Disinfection byproducts - flagged from: TTHM
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 OBERLIN WATER DEPARTMENT's record does not cover
Everything on this page is OBERLIN WATER DEPARTMENT's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. This record - 6 health-based violations on file for OBERLIN WATER DEPARTMENT - 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.