Isle, MN · Mille Lacs County
Isle Water System
Consumer Confidence Report status
Isle 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 Isle.
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 Minnesota’s official records. Always confirm current status with Minnesota before making decisions based on this information.
System facts
- System ID (PWSID)
- MN1480001
- System type
- Community Water System
- Population served
- 820
- Service connections
- 479
- Ownership
- local government
- Water source
- groundwater (wells)
Isle is one of 330 community water systems in Minnesota in the 501 to 3,300 people size category, serving 820 people from groundwater.
As of August 1, 2026, its federal record holds 3 entries between 2022 and 2023, all of which EPA lists as closed. Nothing has been added since 2023.
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 2 Disinfectants and Disinfection Byproducts Rule and the Radionuclides and Revised Rad Rule.
Violation history
Monitoring, Regular
—Combined Radium (-226 and -228)
October 1, 2023 – December 31, 2023
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
July 1, 2022 – October 31, 2022
ArchivedMonitoring and Reporting (DBP)
—TTHM
July 1, 2022 – October 31, 2022
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 |
|---|---|---|---|---|
| October 1, 2023 – December 31, 2023 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| July 1, 2022 – October 31, 2022 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Archived |
| July 1, 2022 – October 31, 2022 | Monitoring and Reporting (DBP) | TTHM | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- May 29, 2024State Compliance achieved1 linked violation
- March 18, 2024State Formal Notice of Violation issued1 linked violation
- March 18, 2024State Public Notification requested1 linked violation
- November 16, 2022State Formal Notice of Violation issued2 linked violations
- November 16, 2022State Public Notification requested2 linked violations
Common questions
Is Isle required to publish a Consumer Confidence Report?
- Yes. Isle 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 Isle’s next Consumer Confidence Report due?
- Isle’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does Isle have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for Isle.
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
Isle City Council
3206763641
Isle, MN 56342-0427