AQUA OHIO - MARION: EPA violation history, explained
AQUA OHIO - MARION has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 47,102 people get their water from it, across 18,841 connections.
AQUA OHIO - MARION's record against the rest of the country
Out of 12,903 systems in this dataset, AQUA OHIO - MARION ranks 8,659th by violation burden (33th percentile) - 5 violations total, 1 health-based.
How AQUA OHIO - MARION compares within OH
OH's 394 covered systems average 5.5 health-based violations each; AQUA OHIO - MARION 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 AQUA OHIO - MARION is from 2004-01-07 (health-based: 2003-01-09). Last reported to EPA: 05/15/2026.
What kind of problem, specifically
AQUA OHIO - MARION'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
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 AQUA OHIO - MARION's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. This record - 1 health-based violation on file for AQUA OHIO - MARION - 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.