WI · Marathon County
WAUSAU WATERWORKS Water System
Consumer Confidence Report status
WAUSAU 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 WAUSAU 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)
- WI7370102
- System type
- Community Water System
- Population served
- 39,994
- Service connections
- 15,643
- Ownership
- local government
- Water source
- groundwater (wells)
WAUSAU WATERWORKS is among the 16 largest community water systems in Wisconsin, serving 39,994 people from groundwater.
As of August 1, 2026, EPA's published records contain no violations for this system.
Violation history
No violations on record for this system.
Enforcement actions
- September 30, 1992State Compliance achieved1 linked violation
- September 28, 1992State Public Notification received1 linked violation
- September 11, 1992State Public Notification issued1 linked violation
- August 31, 1992State Violation/Reminder Notice1 linked violation
- August 31, 1992State Public Notification requested1 linked violation
Common questions
Is WAUSAU WATERWORKS required to publish a Consumer Confidence Report?
- Yes. WAUSAU 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 WAUSAU WATERWORKS’s next Consumer Confidence Report due?
- WAUSAU WATERWORKS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does WAUSAU WATERWORKS have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for WAUSAU 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