What's in WOODSTOCK's water?
WOODSTOCK had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. Population served: 25,630, over 8,995 connections.
Ranked against every other system in this dataset
11 total violations and 3 health-based ones put WOODSTOCK at the 59th percentile nationally for violation burden, rank 5,230 of 12,903.
How WOODSTOCK compares within IL
Among the 560 IL systems in this dataset, the average is 5.0 health-based violations - WOODSTOCK's 3 is at or below that. 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 WOODSTOCK is from 2025-05-03 (health-based: 2024-02-04). Last reported to EPA: 05/27/2026.
What kind of problem, specifically
WOODSTOCK'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:
- Lead & copper - flagged from: Lead and Copper Rule
- Microbial contamination / treatment technique - flagged from: Coliform (TCR)
The most severe category on record is lead & copper, which points toward a lead-class filter if you want to address it directly.
What this data is and is not
WOODSTOCK's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. This record - 3 health-based violations on file for WOODSTOCK - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.