Onamia, MN · Mille Lacs County
Onamia Water System
Consumer Confidence Report status
Onamia 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 Onamia.
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)
- MN1480003
- System type
- Community Water System
- Population served
- 831
- Service connections
- 343
- Ownership
- local government
- Water source
- groundwater (wells)
Onamia is one of 330 community water systems in Minnesota in the 501 to 3,300 people size category, serving 831 people from groundwater.
As of August 1, 2026, EPA's published records contain no violations for this system.
Violation history
No violations on record for this system.
Enforcement actions
- April 1, 2021State Compliance achieved5 linked violations
Common questions
Is Onamia required to publish a Consumer Confidence Report?
- Yes. Onamia 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 Onamia’s next Consumer Confidence Report due?
- Onamia’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does Onamia have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for Onamia.
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
Onamia City Council
3205323311
Onamia, MN 56359