Is DEFOREST WATERWORKS required to publish a Consumer Confidence Report?

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

DEFOREST 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.

WI · Dane County

DEFOREST WATERWORKS Water System

Consumer Confidence Report status

DEFOREST 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 DEFOREST 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): WI1130221
System type: Community Water System
Population served: 10,500
Service connections: 3,888
Ownership: local government
Water source: groundwater (wells)

DEFOREST WATERWORKS is one of 87 community water systems in Wisconsin in the 10,001 to 100,000 people size category, serving 10,500 people from groundwater.

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

None of the 3 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves the Total Coliform Rules.

Violation history

Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 1993 – June 24, 1993
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 8, 1993
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
June 1, 1993 – June 24, 1993	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
April 1, 1993 – April 30, 1993	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
March 1, 1993 – March 8, 1993	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

July 13, 1993State Public Notification received1 linked violation
June 24, 1993State Compliance achieved1 linked violation
June 23, 1993State Formal Notice of Violation issued1 linked violation
June 23, 1993State Public Notification requested1 linked violation
May 25, 1993State Public Notification received1 linked violation
May 3, 1993State Compliance achieved1 linked violation
April 29, 1993State Formal Notice of Violation issued1 linked violation
April 29, 1993State Public Notification requested1 linked violation
March 26, 1993State Public Notification received1 linked violation
March 8, 1993State Public Notification requested1 linked violation
March 8, 1993State Compliance achieved1 linked violation
March 8, 1993State Violation/Reminder Notice1 linked violation

Common questions

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

Not on record

Phone not on record