Mayer, MN · Carver County
Mayer Water System
Consumer Confidence Report status
Mayer 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 Mayer.
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)
- MN1100006
- System type
- Community Water System
- Population served
- 1,900
- Service connections
- 908
- Ownership
- local government
- Water source
- groundwater (wells)
Mayer is one of 330 community water systems in Minnesota in the 501 to 3,300 people size category, serving 1,900 people from groundwater.
As of August 1, 2026, its federal record holds 1 entry in 2023, all of which EPA lists as closed. Nothing has been added since 2023.
All 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 the Radionuclides and Revised Rad Rule.
Violation history
Monitoring, Regular
—Combined Radium (-226 and -228)
October 1, 2023 – December 31, 2023
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 2023 – December 31, 2023 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- March 18, 2024State Formal Notice of Violation issued1 linked violation
- March 18, 2024State Public Notification requested1 linked violation
- February 26, 2024State Compliance achieved1 linked violation
Common questions
Is Mayer required to publish a Consumer Confidence Report?
- Yes. Mayer 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 Mayer’s next Consumer Confidence Report due?
- Mayer’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does Mayer have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for Mayer.
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
Mayer City Council
9526571502
Mayer, MN 55360