Is Madison Lake required to publish a Consumer Confidence Report?

Yes. Madison Lake 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 Madison Lake’s next Consumer Confidence Report due?

Madison Lake’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.

Madison Lake, MN · Blue Earth County

Madison Lake Water System

Consumer Confidence Report status

Madison Lake 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 Madison Lake.

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): MN1070007
System type: Community Water System
Population served: 1,017
Service connections: 668
Ownership: local government
Water source: groundwater (wells)

Madison Lake is one of 330 community water systems in Minnesota in the 501 to 3,300 people size category, serving 1,017 people from groundwater.

As of August 1, 2026, its federal record holds 3 entries between 2014 and 2020, all of which EPA lists as closed. Nothing has been added since 2020.

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 Stage 2 Disinfectants and Disinfection Byproducts Rule and the Stage 1 Disinfectants and Disinfection Byproducts Rule.

Violation history

Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2020 – August 3, 2020
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2014 – December 31, 2014
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2014 – December 31, 2014
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2020 – August 3, 2020	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

September 23, 2020State Public Notification received33 linked violations
August 19, 2020State Public Notification requested2 linked violations
February 19, 2019State Public Notification received1 linked violation
February 14, 2019State Violation/Reminder Notice1 linked violation
January 23, 2019State Violation/Reminder Notice1 linked violation
January 17, 2019State Public Notification requested1 linked violation
January 17, 2019State Formal Notice of Violation issued1 linked violation
November 14, 2018State Violation/Reminder Notice1 linked violation
August 31, 2018State Violation/Reminder Notice1 linked violation
July 30, 2018State Violation/Reminder Notice1 linked violation
September 14, 2015State Compliance achieved3 linked violations
November 25, 2014State Public Notification requested2 linked violations
November 25, 2014State Formal Notice of Violation issued2 linked violations
October 21, 2014State Violation/Reminder Notice2 linked violations
October 7, 2014State Violation/Reminder Notice2 linked violations
October 15, 1996State Public Notification requested1 linked violation

Common questions

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

Madison Lake City Council

5072433011

Madison Lake, MN 56063-0295