COLVILLE WATER DEPARTMENT: EPA violation history, explained
COLVILLE WATER DEPARTMENT has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 4,945 people get their water from it, across 2,919 connections.
COLVILLE WATER DEPARTMENT's record against the rest of the country
Out of 12,903 systems in this dataset, COLVILLE WATER DEPARTMENT ranks 4,549th by violation burden (65th percentile) - 6 violations total, 4 health-baseds.
Against the WA average
Among the 322 WA systems in this dataset, the average is 3.7 health-based violations - COLVILLE WATER DEPARTMENT's 4 is above that. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
COLVILLE WATER DEPARTMENT's most recent violation on record is dated 2024-01-07, with the most recent health-based one dated 1994-01-07. Last reported to EPA: 06/19/2026.
The concern categories on record
COLVILLE WATER DEPARTMENT'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 COLVILLE WATER DEPARTMENT's record does not cover
COLVILLE WATER DEPARTMENT'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. Between the utility's meter and COLVILLE WATER DEPARTMENT's customers' taps is household plumbing, invisible to a system-level record ranked 4,549th of 12,903 by violation count. The guide to what this data misses covers that gap.