Cass Lake, MN · Cass County
Cass Lake Water System
Consumer Confidence Report status
Cass 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 Cass 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 Minnesota’s official records. Always confirm current status with Minnesota before making decisions based on this information.
System facts
- System ID (PWSID)
- MN1110006
- System type
- Community Water System
- Population served
- 691
- Service connections
- 323
- Ownership
- local government
- Water source
- groundwater (wells)
Cass Lake is one of 330 community water systems in Minnesota in the 501 to 3,300 people size category, serving 691 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
- February 2, 1994State Public Notification requested2 linked violations
- February 2, 1994State Formal Notice of Violation issued2 linked violations
- September 30, 1983State Violation/Reminder Notice1 linked violation
- September 30, 1981State Violation/Reminder Notice1 linked violation
Common questions
Is Cass Lake required to publish a Consumer Confidence Report?
- Yes. Cass 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 Cass Lake’s next Consumer Confidence Report due?
- Cass Lake’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does Cass Lake have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for Cass 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
Cass Lake City Council
2183352238
Cass Lake, MN 56633