Is MERCER CITY OF required to publish a Consumer Confidence Report?

Yes. MERCER CITY OF 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 MERCER CITY OF’s next Consumer Confidence Report due?

MERCER CITY OF’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.

MERCER, ND · McLean County

MERCER CITY OF Water System

Consumer Confidence Report status

MERCER CITY OF 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 MERCER CITY OF.

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 North Dakota’s official records. Always confirm current status with North Dakota before making decisions based on this information.

System facts

System ID (PWSID): ND2800650
System type: Community Water System
Population served: 94
Service connections: 56
Ownership: local government
Water source: groundwater (wells)

MERCER CITY OF is one of 357 community water systems in North Dakota in the 500 or fewer people size category, serving 94 people from groundwater.

As of August 1, 2026, its federal record holds 2 entries in 2018, all of which EPA lists as closed. Nothing has been added since 2018.

All 2 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 (RTCR)
—
Revised Total Coliform Rule
July 1, 2018 – July 31, 2018
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
January 1, 2018 – January 31, 2018
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2018 – July 31, 2018	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2018 – January 31, 2018	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

August 29, 2025State Public Notification received3 linked violations
July 24, 2025State Public Notification requested3 linked violations
July 22, 2025State Compliance achieved4 linked violations
May 17, 2025State Public Notification requested3 linked violations
January 18, 2025State Public Notification requested3 linked violations
October 25, 2024State Violation/Reminder Notice3 linked violations
May 24, 2023State Compliance achieved3 linked violations
November 7, 2018State Public Notification received3 linked violations
August 21, 2018State Public Notification received3 linked violations
May 2, 2018State Public Notification received3 linked violations
April 27, 2018State Violation/Reminder Notice3 linked violations
November 15, 2012State Public Notification received3 linked violations
November 1, 2012State Violation/Reminder Notice3 linked violations
May 18, 2012State Public Notification received3 linked violations
April 26, 2012State Violation/Reminder Notice3 linked violations
August 12, 2011State Public Notification received3 linked violations
July 20, 2009State Public Notification requested6 linked violations
September 18, 2003State Public Notification requested5 linked violations
September 18, 2003State Violation/Reminder Notice5 linked violations

Common questions

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

VOLOCHENKO, KATHRIN

701-447-2600

MERCER, ND 58559