Is Warren required to publish a Consumer Confidence Report?

Yes. Warren 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 Warren’s next Consumer Confidence Report due?

Warren’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

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.

Warren, MN · Marshall County

Warren Water System

Consumer Confidence Report status

Warren 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 Warren.

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): MN1450012
System type: Community Water System
Population served: 1,551
Service connections: 706
Ownership: local government
Water source: groundwater (wells)

Warren is one of 330 community water systems in Minnesota in the 501 to 3,300 people size category, serving 1,551 people from groundwater.

As of August 1, 2026, its federal record holds 3 entries between 2008 and 2015, all of which EPA lists as closed. Nothing has been added since 2015.

All 3 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 Total Coliform Rules.

Violation history

Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
February 1, 2015 – February 28, 2015
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
October 1, 2014 – October 31, 2014
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2008 – December 31, 2008
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
February 1, 2015 – February 28, 2015	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
October 1, 2014 – October 31, 2014	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
December 1, 2008 – December 31, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

March 16, 2015State Public Notification requested2 linked violations
March 16, 2015State Formal Notice of Violation issued2 linked violations
March 9, 2015State Compliance achieved2 linked violations
December 1, 2014State Formal Notice of Violation issued2 linked violations
December 1, 2014State Public Notification requested4 linked violations
November 6, 2014State Compliance achieved2 linked violations
February 11, 2009State Public Notification requested1 linked violation
February 11, 2009State Formal Notice of Violation issued1 linked violation
February 10, 2009State Formal Notice of Violation issued1 linked violation
February 10, 2009State Public Notification requested1 linked violation
February 1, 2009State Compliance achieved4 linked violations
November 15, 1992State Public Notification requested3 linked violations
September 30, 1984State 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
September 30, 1982State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record

Common questions

Is Warren required to publish a Consumer Confidence Report?: Yes. Warren 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 Warren’s next Consumer Confidence Report due?: Warren’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does Warren have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for Warren.
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

Warren City Council

2187455343

Warren, MN 56762-1510