What's in JEFFERSON COUNTY PWSD 6's water?
JEFFERSON COUNTY PWSD 6 has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 7,500 people get their water from it, across 3,168 connections.
JEFFERSON COUNTY PWSD 6's record against the rest of the country
JEFFERSON COUNTY PWSD 6 has 9 violations on record in total, 3 of thems health-based - ranking it 5,329th of 12,903 systems by violation count, the 59th percentile nationally.
Against the MO average
MO's 327 covered systems average 6.1 health-based violations each; JEFFERSON COUNTY PWSD 6 carries 3, not more than typical for the state. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
JEFFERSON COUNTY PWSD 6's most recent violation on record is dated 2009-01-01, with the most recent health-based one dated 1999-01-08. Last reported to EPA: 06/16/2026.
The concern categories on record
JEFFERSON COUNTY PWSD 6'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: Coliform (TCR)
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 JEFFERSON COUNTY PWSD 6's record does not cover
JEFFERSON COUNTY PWSD 6'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 - 3 health-based violations on file for JEFFERSON COUNTY PWSD 6 - 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.