Is BLUE ISLAND's water safe to drink?
BLUE ISLAND has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 21,494 people get their water from it, across 5,623 connections.
Ranked against every other system in this dataset
11 total violations and 2 health-based ones put BLUE ISLAND at the 50th percentile nationally for violation burden, rank 6,476 of 12,903.
Against the IL average
IL's 560 covered systems average 5.0 health-based violations each; BLUE ISLAND carries 2, not more than typical for the state. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
BLUE ISLAND's most recent violation on record is dated 2023-01-07, with the most recent health-based one dated 1992-07-12. Last reported to EPA: 05/27/2026.
The concern categories on record
BLUE ISLAND'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 BLUE ISLAND's record does not cover
Everything on this page is BLUE ISLAND'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 11 logged violations can see. The guide to what this data misses covers that gap.