What's in DUBUQUE WATER WORKS's water?

DUBUQUE WATER WORKS's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 59,667 people get their water from it, across 23,954 connections.

How this compares nationally

DUBUQUE WATER WORKS has 4 violations on record in total, 0 of thems health-based - ranking it 11,301th of 12,903 systems by violation count, the 12th percentile nationally.

How DUBUQUE WATER WORKS compares within IA

DUBUQUE WATER WORKS's 0 health-based violations sit within the IA average of 3.5, across 203 systems statewide. 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 DUBUQUE WATER WORKS is from 2008-01-01. Last reported to EPA: 06/17/2026.

What this data is and is not

Everything on this page is DUBUQUE WATER WORKS's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 4 logged violations can see. The guide to what this data misses covers that gap.