Wood River, IL Water Quality
Wood River: EPA violation history, explained
Wood River's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 10,464 people get their water from it, across 4,550 connections.
How this compares nationally
Wood River has 12 violations on record in total, 0 of them health-based - ranking it 10,320th of 12,903 systems by violation count, the 20th percentile nationally.
Against the IL average
Among the 572 IL systems in this dataset, the average is 5.1 health-based violations - Wood River's 0 is at or below that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
Wood River's most recent violation on record is dated 2025-02-07. Last reported to EPA: 05/27/2026.
What Wood River's record does not cover
This is what Wood River 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 Wood River's customers' taps is household plumbing, invisible to a system-level record ranked 10,320th of 12,903 by violation count. The guide to what this data misses covers that gap.