BUFFALO GROVE, IL · Cook County
BUFFALO GROVE Water System
Consumer Confidence Report status
BUFFALO GROVE 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 BUFFALO GROVE.
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)
- IL0314180
- System type
- Community Water System
- Population served
- 43,212
- Service connections
- 12,271
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
BUFFALO GROVE is one of 225 community water systems in Illinois in the 10,001 to 100,000 people size category, serving 43,212 people from surface water.
As of August 1, 2026, its federal record holds 3 entries between 2023 and 2024, all of which EPA lists as closed.
Of the 3, 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 Stage 2 Disinfectants and Disinfection Byproducts Rule and the Consumer Confidence Rule.
Violation history
Monitoring and Reporting (DBP)
—TTHM
October 1, 2024 – December 31, 2024
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
October 1, 2024 – December 31, 2024
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2023 – January 12, 2024
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 2024 – December 31, 2024 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| July 1, 2023 – January 12, 2024 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
No enforcement actions on record for this system.
Common questions
Is BUFFALO GROVE required to publish a Consumer Confidence Report?
- Yes. BUFFALO GROVE 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 BUFFALO GROVE’s next Consumer Confidence Report due?
- BUFFALO GROVE’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does BUFFALO GROVE have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for BUFFALO GROVE.
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
SKIBBE, MICHAEL K
847-459-2525
BUFFALO GROVE, IL 60089