Is GRANTON WATERWORKS required to publish a Consumer Confidence Report?

Yes. GRANTON WATERWORKS 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 GRANTON WATERWORKS’s next Consumer Confidence Report due?

GRANTON WATERWORKS’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.

GRANTON, WI · Clark County

GRANTON WATERWORKS Water System

Consumer Confidence Report status

GRANTON WATERWORKS 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 GRANTON WATERWORKS.

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

System facts

System ID (PWSID): WI6100327
System type: Community Water System
Population served: 349
Service connections: 189
Ownership: local government
Water source: groundwater (wells)

GRANTON WATERWORKS is one of 1,289 community water systems in Wisconsin in the 500 or fewer people size category, serving 349 people from groundwater.

As of August 1, 2026, its federal record holds 3 entries between 1993 and 2017, all of which EPA lists as closed. Nothing has been added since 2017.

Of the 3, 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 Total Coliform Rules and the Stage 2 Disinfectants and Disinfection Byproducts Rule.

Violation history

Monitoring and Reporting (DBP)
—
TTHM
January 1, 2017 – September 19, 2017
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 1993 – April 30, 1993
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
March 1, 1993 – March 24, 1993
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2017 – September 19, 2017	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 1993 – April 30, 1993	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
March 1, 1993 – March 24, 1993	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

June 24, 1994State Compliance achieved1 linked violation
June 23, 1994State Public Notification received1 linked violation
June 2, 1994State Public Notification received1 linked violation
May 19, 1994State Public Notification requested1 linked violation
May 19, 1994State Violation/Reminder Notice1 linked violation
May 20, 1993State Public Notification received1 linked violation
May 6, 1993State Public Notification requested1 linked violation
May 6, 1993State Violation/Reminder Notice1 linked violation
May 5, 1993State Compliance achieved1 linked violation
April 2, 1993State Public Notification received1 linked violation
March 25, 1993State Public Notification received1 linked violation
March 24, 1993State Compliance achieved1 linked violation
March 22, 1993State Public Notification requested1 linked violation
March 22, 1993State Violation/Reminder Notice1 linked violation

Common questions

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

GRANTON VILLAGE CLERK COLE MINSAAS

Phone not on record

GRANTON, WI 54436