ISLAND LAKE, IL · Lake County
ISLAND LAKE Water System
Consumer Confidence Report status
ISLAND LAKE 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 ISLAND LAKE.
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)
- IL0974540
- System type
- Community Water System
- Population served
- 8,066
- Service connections
- 3,103
- Ownership
- local government
- Water source
- groundwater (wells)
ISLAND LAKE is one of 248 community water systems in Illinois in the 3,301 to 10,000 people size category, serving 8,066 people from groundwater.
As of August 1, 2026, its federal record holds 2 entries between 1997 and 2023, all of which EPA lists as closed. Nothing has been added since 2023.
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 synthetic organic chemicals and the Total Coliform Rules.
Violation history
Monitoring, Regular
—Toxaphene
January 1, 2023 – December 31, 2025
ArchivedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
September 1, 1997 – September 30, 1997
Archived
Archived 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 | Toxaphene | — | Archived |
| September 1, 1997 – September 30, 1997 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
Archived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- January 16, 2026State Violation/Reminder Notice1 linked violation
- January 16, 2026State Public Notification requested1 linked violation
- November 29, 1997State Violation/Reminder Notice1 linked violation
- November 29, 1997State Public Notification requested1 linked violation
- October 1, 1997State Public Notification received1 linked violation
- December 18, 1992State Public Notification received1 linked violation
- December 12, 1992State Public Notification requested1 linked violation
Common questions
Is ISLAND LAKE required to publish a Consumer Confidence Report?
- Yes. ISLAND LAKE 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 ISLAND LAKE’s next Consumer Confidence Report due?
- ISLAND LAKE’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does ISLAND LAKE have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for ISLAND LAKE.
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
CARLSEN, CHRIS
847-416-7872
ISLAND LAKE, IL 60042