Drinking Water Systems in OAK BROOK, Illinois
3 water systems are reported for this city, with a combined service population of 15,811. The systems have 15 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving OAK BROOK
SUBURBAN APARTMENTS (DE KALB UNIV DVL)
1,050 served33 historical records15 recent
C
OAK BROOK
9,400 served6 historical records
A
AQUA ILLINOIS-OAK BROOK
5,361 served0 historical records
A
EPA Contaminant Categories in Historical Violation Records
Radium-22610 records
Chlorine7 records
Public Notice6 records
Revised Total Coliform Rule5 records
Consumer Confidence Rule3 records
Coliform (TCR)3 records
Gross Alpha2 records
Lead and Copper Rule1 record
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.