Is JEFFERSON COUNTY PWSD 12's water safe to drink?

JEFFERSON COUNTY PWSD 12's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. Population served: 3,300, over 1,507 connections.

How this compares nationally

2 total violations and 0 health-based ones put JEFFERSON COUNTY PWSD 12 at the 6th percentile nationally for violation burden, rank 12,127 of 12,903.

How JEFFERSON COUNTY PWSD 12 compares within MO

Among the 327 MO systems in this dataset, the average is 6.1 health-based violations - JEFFERSON COUNTY PWSD 12's 0 is at or below that. The clean-record guide covers what a comparison like this can hide.

Most recent violation on record

The last violation EPA has on record for JEFFERSON COUNTY PWSD 12 is from 2014-01-07. Last reported to EPA: 06/16/2026.

What this data is and is not

JEFFERSON COUNTY PWSD 12'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 JEFFERSON COUNTY PWSD 12 - 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.