Mankato: EPA violation history, explained

Mankato's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. It serves 42,803 people through 10,779 service connections.

Ranked against every other system in this dataset

Out of 12,903 systems in this dataset, Mankato ranks 12,279th by violation burden (5th percentile) - 1 violation total, 0 health-baseds.

How Mankato compares within MN

MN's 254 covered systems average 0.8 health-based violations each; Mankato carries 0, 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 Mankato is from 1994-01-01. Last reported to EPA: 05/28/2026.

What this data is and is not

Mankato'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 1 logged violations can see. The guide to what this data misses covers that gap.