Public Water Partners

Greendale, WI · Milwaukee County

GREENDALE WATERWORKS Water System

Consumer Confidence Report status

GREENDALE 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 GREENDALE 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)
WI2410571
System type
Community Water System
Population served
14,393
Service connections
5,330
Ownership
local government
Water source
surface water (rivers, lakes, or reservoirs)

GREENDALE WATERWORKS is one of 87 community water systems in Wisconsin in the 10,001 to 100,000 people size category, serving 14,393 people from surface water.

As of August 1, 2026, its federal record holds 1 entry in 2023, all of which EPA lists as closed. Nothing has been added since 2023.

All 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 Stage 2 Disinfectants and Disinfection Byproducts Rule.

Violation history

  • Monitoring and Reporting (DBP)

    —

    Total Haloacetic Acids (HAA5)

    October 1, 2023 – December 31, 2023

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

No enforcement actions on record for this system.

Common questions

Is GREENDALE WATERWORKS required to publish a Consumer Confidence Report?

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

GREENDALE WATERWORKS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does GREENDALE WATERWORKS have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for GREENDALE 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

GREENDALE VILLAGE CLERK - MELANIE PIETRUSZKA

Phone not on record

Greendale, WI 53129-1827