Is WATERLOO WATER WORKS's water safe to drink?
WATERLOO WATER WORKS has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 2,242 people get their water from it, across 771 connections.
WATERLOO WATER WORKS's record against the rest of the country
Out of 12,903 systems in this dataset, WATERLOO WATER WORKS ranks 9,052th by violation burden (30th percentile) - 3 violations total, 1 health-based.
Against the IN average
WATERLOO WATER WORKS's 1 health-based violations sit within the IN average of 2.9, across 283 systems statewide. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
WATERLOO WATER WORKS's most recent violation on record is dated 2005-09-11, with the most recent health-based one dated 2004-01-09. Last reported to EPA: 06/30/2026.
The concern categories on record
WATERLOO WATER WORKS'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 WATERLOO WATER WORKS's record does not cover
This is what WATERLOO WATER WORKS reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. Between the utility's meter and WATERLOO WATER WORKS's customers' taps is household plumbing, invisible to a system-level record ranked 9,052th of 12,903 by violation count. The guide to what this data misses covers that gap.