Knapp, WI · Dunn County
KNAPP WATERWORKS Water System
Consumer Confidence Report status
KNAPP 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 KNAPP 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)
- WI6170267
- System type
- Community Water System
- Population served
- 486
- Service connections
- 229
- Ownership
- local government
- Water source
- groundwater (wells)
KNAPP WATERWORKS is one of 1,289 community water systems in Wisconsin in the 500 or fewer people size category, serving 486 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
- May 20, 2024State Public Notification received10 linked violations
- February 19, 2018State Violation/Reminder Notice6 linked violations
- August 7, 2017State Compliance achieved13 linked violations
- June 19, 2017State Public Notification requested6 linked violations
- December 1, 2016State Public Notification requested10 linked violations
- June 14, 2012State Compliance achieved67 linked violations
Common questions
Is KNAPP WATERWORKS required to publish a Consumer Confidence Report?
- Yes. KNAPP 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 KNAPP WATERWORKS’s next Consumer Confidence Report due?
- KNAPP WATERWORKS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does KNAPP WATERWORKS have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for KNAPP 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
KNAPP VILLAGE CLERK
Phone not on record
Knapp, WI 54749