Is CALLAWAY COUNTY PWSD 1's water safe to drink?
CALLAWAY COUNTY PWSD 1 has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 9,840 people get their water from it, across 4,629 connections.
CALLAWAY COUNTY PWSD 1's record against the rest of the country
Out of 12,903 systems in this dataset, CALLAWAY COUNTY PWSD 1 ranks 9,118th by violation burden (29th percentile) - 2 violations total, 1 health-based.
How CALLAWAY COUNTY PWSD 1 compares within MO
MO's 327 covered systems average 6.1 health-based violations each; CALLAWAY COUNTY PWSD 1 carries 1, not more than typical for the state. 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 CALLAWAY COUNTY PWSD 1 is from 2010-01-11 (health-based: 2010-01-11). Last reported to EPA: 06/16/2026.
What kind of problem, specifically
CALLAWAY COUNTY PWSD 1'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 this data is and is not
CALLAWAY COUNTY PWSD 1'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 2 logged violations can see. The guide to what this data misses covers that gap.