What's in QUINCY's water?

QUINCY's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 42,000 people get their water from it, across 17,410 connections.

QUINCY's record against the rest of the country

43 total violations and 0 health-based ones put QUINCY at the 25th percentile nationally for violation burden, rank 9,650 of 12,903.

How QUINCY compares within IL

IL's 560 covered systems average 5.0 health-based violations each; QUINCY carries 0, not more than typical for the state. 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 QUINCY is from 2025-01-07. Last reported to EPA: 05/27/2026.

What this data is and is not

Everything on this page is QUINCY'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 43 logged violations can see. The guide to what this data misses covers that gap.