Mahtomedi, MN · Washington County
Mahtomedi Water System
Consumer Confidence Report status
Mahtomedi 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 Mahtomedi.
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)
- MN1820013
- System type
- Community Water System
- Population served
- 8,818
- Service connections
- 2,769
- Ownership
- local government
- Water source
- groundwater (wells)
Mahtomedi is one of 90 community water systems in Minnesota in the 3,301 to 10,000 people size category, serving 8,818 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
- September 15, 1993State Public Notification requested1 linked violation
- August 15, 1992State Violation/Reminder Notice1 linked violation
- August 15, 1992State Public Notification requested1 linked violation
- August 15, 1992State Formal Notice of Violation issued1 linked violation
- September 30, 1987State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- September 30, 1984State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
Common questions
Is Mahtomedi required to publish a Consumer Confidence Report?
- Yes. Mahtomedi 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 Mahtomedi’s next Consumer Confidence Report due?
- Mahtomedi’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does Mahtomedi have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for Mahtomedi.
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
Mahtomedi City Council
6514263344
Mahtomedi, MN 55115