Owatonna: EPA violation history, explained

Owatonna's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 26,430 people get their water from it, across 9,941 connections.

Ranked against every other system in this dataset

3 total violations and 0 health-based ones put Owatonna at the 10th percentile nationally for violation burden, rank 11,581 of 12,903.

How Owatonna compares within MN

Among the 254 MN systems in this dataset, the average is 0.8 health-based violations - Owatonna's 0 is at or below that. See the lead and copper guide for why lead counts differently.

Most recent violation on record

The last violation EPA has on record for Owatonna is from 1992-01-07. Last reported to EPA: 05/28/2026.

What this data is and is not

Owatonna'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. This record - 0 health-based violations on file for Owatonna - 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.