Cottage Grove, MN · Washington County
Cottage Grove Water System
Consumer Confidence Report status
Cottage Grove 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 Cottage Grove.
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)
- MN1820004
- System type
- Community Water System
- Population served
- 42,760
- Service connections
- 13,760
- Ownership
- local government
- Water source
- groundwater (wells)
Cottage Grove is among the 24 largest community water systems in Minnesota, serving 42,760 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
- December 15, 1989State Violation/Reminder Notice1 linked violation
- October 30, 1989State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- September 30, 1988State Violation/Reminder Notice1 linked violation
Common questions
Is Cottage Grove required to publish a Consumer Confidence Report?
- Yes. Cottage Grove 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 Cottage Grove’s next Consumer Confidence Report due?
- Cottage Grove’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does Cottage Grove have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for Cottage Grove.
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
Cottage Grove City Council
6514582842
Cottage Grove, MN 55016