Crestwood, IL Water Quality
Is Crestwood's water safe to drink?
Crestwood's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 10,826 people get their water from it, across 3,613 connections.
Crestwood's record against the rest of the country
24 total violations and 0 health-based ones put Crestwood at the 23th percentile nationally for violation burden, rank 9,928 of 12,903.
Against the IL average
Crestwood's 0 health-based violations sit within the IL average of 5.1, across 572 systems statewide. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
Crestwood's most recent violation on record is dated 2025-01-07. Last reported to EPA: 05/27/2026.
What Crestwood's record does not cover
This is what Crestwood 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. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 24 logged violations can see. The guide to what this data misses covers that gap.