WI · Brown County
DENMARK WATERWORKS Water System
Consumer Confidence Report status
DENMARK 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 DENMARK 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)
- WI4050351
- System type
- Community Water System
- Population served
- 2,684
- Service connections
- 976
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
DENMARK WATERWORKS is one of 333 community water systems in Wisconsin in the 501 to 3,300 people size category, serving 2,684 people from surface water.
As of August 1, 2026, its federal record holds 2 entries between 1992 and 2024, all of which EPA lists as closed.
Of the 2, 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 Lead and Copper Rule and the Total Coliform Rules.
Violation history
LSL Inventory
Health-basedLEAD AND COPPER RULE REVISIONS
October 17, 2024 – February 10, 2025
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
December 1, 1992 – December 31, 1992
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 17, 2024 – February 10, 2025 | LSL Inventory | LEAD AND COPPER RULE REVISIONS | Health-based | Resolved |
| December 1, 1992 – December 31, 1992 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- February 16, 1993State Violation/Reminder Notice1 linked violation
- January 31, 1993State Compliance achieved1 linked violation
Common questions
Is DENMARK WATERWORKS required to publish a Consumer Confidence Report?
- Yes. DENMARK 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 DENMARK WATERWORKS’s next Consumer Confidence Report due?
- DENMARK WATERWORKS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does DENMARK WATERWORKS have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for DENMARK 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