Is Oak Grove required to publish a Consumer Confidence Report?

Yes. Oak 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 Oak Grove’s next Consumer Confidence Report due?

Oak Grove’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.

Oak Grove, MN · Anoka County

Oak Grove Water System

Consumer Confidence Report status

Oak 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 Oak 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): MN1020044
System type: Community Water System
Population served: 623
Service connections: 237
Ownership: local government
Water source: groundwater (wells)

Oak Grove is one of 330 community water systems in Minnesota in the 501 to 3,300 people size category, serving 623 people from groundwater.

As of August 1, 2026, its federal record holds 3 entries between 2024 and 2025, all of which EPA lists as closed.

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, the Stage 1 Disinfectants and Disinfection Byproducts Rule, and the Lead and Copper Rule.

Violation history

Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
October 1, 2025 – December 31, 2025
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2025 – December 31, 2025
Archived
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2024 – September 11, 2025
Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2025 – December 31, 2025	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2025 – December 31, 2025	Monitoring and Reporting (DBP)	Chlorine	—	Archived
October 1, 2024 – September 11, 2025	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

January 27, 2026State Compliance achieved1 linked violation
January 21, 2026State Formal Notice of Violation issued1 linked violation
January 21, 2026State Public Notification requested1 linked violation
January 20, 2026State Formal Notice of Violation issued1 linked violation
January 20, 2026State Public Notification requested1 linked violation
December 5, 2025State Violation/Reminder Notice1 linked violation
September 11, 2025State Compliance achieved1 linked violation
December 5, 2024State Formal Notice of Violation issued1 linked violation
September 26, 2012State Administrative/Compliance Order without penalty issued1 linked violation
March 21, 2012State Violation/Reminder Notice1 linked violation
June 29, 2011State Public Notification received1 linked violation
June 21, 2011State Violation/Reminder Notice1 linked violation
March 10, 2011State Public Notification received1 linked violation
March 3, 2011State Violation/Reminder Notice1 linked violation
November 28, 2010State Administrative/Compliance Order without penalty issued4 linked violations
August 19, 2010State Public Notification received1 linked violation
July 22, 2010State Compliance Meeting conducted2 linked violations
July 22, 2010State Public Notification requested3 linked violations

Common questions

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

City of Oak Grove

7634047075

Oak Grove, MN 55011-9182