POLSON CITY OF: EPA violation history, explained
POLSON CITY OF has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 5,300 people get their water from it, across 2,566 connections.
Ranked against every other system in this dataset
94 total violations and 1 health-based ones put POLSON CITY OF at the 44th percentile nationally for violation burden, rank 7,257 of 12,903.
How POLSON CITY OF compares within MT
MT's 59 covered systems average 6.7 health-based violations each; POLSON CITY OF carries 1, not more than typical for the state. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
The last violation EPA has on record for POLSON CITY OF is from 2025-01-10 (health-based: 1995-01-04). Last reported to EPA: 06/29/2026.
What kind of problem, specifically
POLSON CITY OF'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
POLSON CITY OF'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 - 1 health-based violation on file for POLSON CITY OF - 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.