GLENVIEW, IL · Will County
AQUA ILLINOIS-WILLOWBROOK Water System
Consumer Confidence Report status
AQUA ILLINOIS-WILLOWBROOK 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 AQUA ILLINOIS-WILLOWBROOK.
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)
- IL1977870
- System type
- Community Water System
- Population served
- 5,100
- Service connections
- 1,700
- Ownership
- privately owned
- Water source
- groundwater (wells)
AQUA ILLINOIS-WILLOWBROOK is one of 248 community water systems in Illinois in the 3,301 to 10,000 people size category, serving 5,100 people from groundwater.
As of August 1, 2026, its federal record holds 3 entries between 1977 and 2020, all of which EPA lists as closed. Nothing has been added since 2020.
All 3 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 Stage 1 Disinfectants and Disinfection Byproducts Rule, the Total Coliform Rules, and the Radionuclides and Revised Rad Rule.
Violation history
Monitoring and Reporting (DBP)
—Chlorine
July 1, 2020 – September 3, 2020
ResolvedReport Sample Result/Fail Monitor (RTCR)
—Revised Total Coliform Rule
June 1, 2020 – July 27, 2020
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2020 – September 3, 2020 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| June 1, 2020 – July 27, 2020 | Report Sample Result/Fail Monitor (RTCR) | Revised Total Coliform Rule | — | Resolved |
| June 30, 1977 – June 29, 1981 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
No enforcement actions on record for this system.
Common questions
Is AQUA ILLINOIS-WILLOWBROOK required to publish a Consumer Confidence Report?
- Yes. AQUA ILLINOIS-WILLOWBROOK 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 AQUA ILLINOIS-WILLOWBROOK’s next Consumer Confidence Report due?
- AQUA ILLINOIS-WILLOWBROOK’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does AQUA ILLINOIS-WILLOWBROOK have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for AQUA ILLINOIS-WILLOWBROOK.
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
MACK, JENNIFER
224-602-6779
GLENVIEW, IL 60025