Public Water Partners

Hales Corners, WI · Waukesha County

BROOKFIELD HILLS Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of September 13, 2017. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in Waukesha County, WI.

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)
WI2680276
System type
Community Water System
Population served
1,200
Service connections
376
Ownership
privately owned
Water source
groundwater (wells)

BROOKFIELD HILLS is one of 333 community water systems in Wisconsin in the 501 to 3,300 people size category, formerly serving 1,200 people from groundwater.

EPA's federal records list this system as inactive in 2017; the record below is historical.

As of August 1, 2026, its federal record holds 5 entries between 1986 and 2016, all of which EPA lists as closed. Nothing has been added since 2016.

Of the 5, 2 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 Radionuclides and Revised Rad Rule, the Public Notice Rule and Revised PN Rule, and inorganic chemicals.

Violation history

  • Public Notification Violation for NPDWR Violation

    —

    Public Notice

    June 3, 2016 – September 15, 2016

    Resolved

  • Monitoring, Regular

    —

    Barium

    January 1, 1997 – December 31, 1997

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    July 1, 1991 – July 31, 1991

    Archived

  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    June 10, 1988 – June 9, 1992

    Archived

  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    August 5, 1986 – September 30, 1986

    Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Last known contact on file (system is inactive)

WIMMER, MARC - WIMMER REALTY

Phone not on record

Hales Corners, WI 53130-1368