CHICAGO HEIGHTS, IL · Cook County
CHICAGO HEIGHTS Water System
Consumer Confidence Report status
CHICAGO HEIGHTS must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for CHICAGO HEIGHTS.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Illinois’s official records. Always confirm current status with Illinois before making decisions based on this information.
System facts
- System ID (PWSID)
- IL0310450
- System type
- Community Water System
- Population served
- 26,184
- Service connections
- 9,795
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
CHICAGO HEIGHTS is one of 225 community water systems in Illinois in the 10,001 to 100,000 people size category, serving 26,184 people from surface water.
As of August 1, 2026, its federal record holds 2 entries between 2015 and 2023, all of which EPA lists as closed. Nothing has been added since 2023.
All 2 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Lead and Copper Rule and the Stage 2 Disinfectants and Disinfection Byproducts Rule.
Violation history
Follow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2023 – February 27, 2024
ResolvedMonitoring and Reporting (DBP)
—TTHM
January 1, 2015 – March 31, 2015
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 2023 – February 27, 2024 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| January 1, 2015 – March 31, 2015 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
No enforcement actions on record for this system.
Common questions
Is CHICAGO HEIGHTS required to publish a Consumer Confidence Report?
- Yes. CHICAGO HEIGHTS is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is CHICAGO HEIGHTS’s next Consumer Confidence Report due?
- CHICAGO HEIGHTS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CHICAGO HEIGHTS have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for CHICAGO HEIGHTS.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
AYALA, GILBERT
708-756-5381
CHICAGO HEIGHTS, IL 60411