MONTESANO CITY OF: EPA violation history, explained
MONTESANO CITY OF has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 6,204, over 2,257 connections.
How this compares nationally
Out of 12,903 systems in this dataset, MONTESANO CITY OF ranks 5,125th by violation burden (60th percentile) - 15 violations total, 3 health-baseds.
How MONTESANO CITY OF compares within WA
WA's 322 covered systems average 3.7 health-based violations each; MONTESANO CITY OF 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
The last violation EPA has on record for MONTESANO CITY OF is from 2022-01-07 (health-based: 2006-01-11). Last reported to EPA: 06/19/2026.
What kind of problem, specifically
MONTESANO 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
Everything on this page is MONTESANO CITY OF's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Between the utility's meter and MONTESANO CITY OF's customers' taps is household plumbing, invisible to a system-level record ranked 5,125th of 12,903 by violation count. The guide to what this data misses covers that gap.