Duluth, MN · St. Louis County
Duluth Water System
Consumer Confidence Report status
Duluth 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 Duluth.
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)
- MN1690011
- System type
- Community Water System
- Population served
- 86,859
- Service connections
- 28,850
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
Duluth is among the 6 largest community water systems in Minnesota, serving 86,859 people from surface water.
As of August 1, 2026, its federal record holds 2 entries in 2017, all of which EPA lists as closed. Nothing has been added since 2017.
Of the 2, 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 Surface Water Treatment Rules.
Violation history
Monitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
October 1, 2017 – October 31, 2017
ResolvedMonthly Turbidity Exceed (Enhanced SWTR)
Health-basedInterim Enhanced Surface Water Treatment Rule
October 1, 2017 – October 31, 2017
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 2017 – October 31, 2017 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| October 1, 2017 – October 31, 2017 | Monthly Turbidity Exceed (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | Health-based | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- November 22, 2017State Public Notification received2 linked violations
- November 20, 2017State Compliance achieved3 linked violations
- November 14, 2017State Public Notification requested2 linked violations
- November 14, 2017State Formal Notice of Violation issued2 linked violations
- September 30, 1988State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- September 30, 1987State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- September 30, 1984State Compliance achievedgeneral compliance action — not tied to a specific violation on record
Common questions
Is Duluth required to publish a Consumer Confidence Report?
- Yes. Duluth 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 Duluth’s next Consumer Confidence Report due?
- Duluth’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does Duluth have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for Duluth.
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
Duluth City Council
2187305256
Duluth, MN 55802