CAROL STREAM, IL · DuPage County
CAROL STREAM Water System
Consumer Confidence Report status
CAROL STREAM 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 CAROL STREAM.
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)
- IL0430200
- System type
- Community Water System
- Population served
- 39,854
- Service connections
- 11,574
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
CAROL STREAM is one of 225 community water systems in Illinois in the 10,001 to 100,000 people size category, serving 39,854 people from surface water.
As of August 1, 2026, its federal record holds 5 entries between 1977 and 2023, all of which EPA lists as closed. Nothing has been added since 2023.
Of the 5, 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 synthetic organic chemicals, the Consumer Confidence Rule, and the Total Coliform Rules.
Violation history
Monitoring, Regular
—OXAMYL
January 1, 2023 – December 31, 2025
ResolvedMonitoring, Regular
—Carbofuran
January 1, 2023 – December 31, 2025
ResolvedConsumer Confidence Report Inadequate Reporting
—Consumer Confidence Rule
July 1, 2020 – October 8, 2020
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
June 1, 2003 – June 30, 2003
ArchivedMonitoring, 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 |
|---|---|---|---|---|
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | OXAMYL | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Carbofuran | — | Resolved |
| July 1, 2020 – October 8, 2020 | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | — | Resolved |
| June 1, 2003 – June 30, 2003 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| 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 CAROL STREAM required to publish a Consumer Confidence Report?
- Yes. CAROL STREAM 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 CAROL STREAM’s next Consumer Confidence Report due?
- CAROL STREAM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CAROL STREAM have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for CAROL STREAM.
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
FINK, BRAD
630-871-6260
CAROL STREAM, IL 60188