ILWACO WATER DEPARTMENT CITY OF: EPA violation history, explained
ILWACO WATER DEPARTMENT 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: 2,757, over 709 connections.
Ranked against every other system in this dataset
ILWACO WATER DEPARTMENT CITY OF has 50 violations on record in total, 4 of thems health-based - ranking it 4,028th of 12,903 systems by violation count, the 69th percentile nationally.
How ILWACO WATER DEPARTMENT CITY OF compares within WA
ILWACO WATER DEPARTMENT CITY OF's 4 health-based violations sit above the WA average of 3.7, across 322 systems statewide. 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 ILWACO WATER DEPARTMENT CITY OF is from 2016-01-07 (health-based: 2005-01-11). Last reported to EPA: 06/19/2026.
What kind of problem, specifically
ILWACO WATER DEPARTMENT 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: Surface Water Treatment Rule
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
ILWACO WATER DEPARTMENT 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 - 4 health-based violations on file for ILWACO WATER DEPARTMENT 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.