HICKORY HILLS, IL · Cook County
HICKORY HILLS Water System
Consumer Confidence Report status
HICKORY HILLS 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 HICKORY HILLS.
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)
- IL0311200
- System type
- Community Water System
- Population served
- 14,505
- Service connections
- 4,069
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
HICKORY HILLS is one of 225 community water systems in Illinois in the 10,001 to 100,000 people size category, serving 14,505 people from surface water.
As of August 1, 2026, its federal record holds 2 entries in 1992, all of which EPA lists as closed. Nothing has been added since 1992.
Of the 2, 1 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 Total Coliform Rules.
Violation history
Maximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
October 1, 1992 – October 31, 1992
ArchivedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
January 1, 1992 – January 31, 1992
Archived
Archived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 1992 – October 31, 1992 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| January 1, 1992 – January 31, 1992 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- November 28, 1992State Violation/Reminder Notice2 linked violations
- November 28, 1992State Public Notification requested2 linked violations
- November 19, 1992State Public Notification received2 linked violations
- March 1, 1992State Violation/Reminder Notice1 linked violation
- March 1, 1992State Public Notification requested1 linked violation
- February 26, 1992State Public Notification received1 linked violation
Common questions
Is HICKORY HILLS required to publish a Consumer Confidence Report?
- Yes. HICKORY HILLS 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 HICKORY HILLS’s next Consumer Confidence Report due?
- HICKORY HILLS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does HICKORY HILLS have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for HICKORY HILLS.
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
LEHR, SUSAN
708-598-7855
HICKORY HILLS, IL 60457