Public water system record

Muskego Water Utility

Serves Muskego, Waukesha County, WI · 8,150 people served

Federal records show 1 health-based violation and 16 monitoring/reporting issues for Muskego Water Utility in the last ten years. The most serious issue in this window was a resolved LEAD AND COPPER RULE REVISIONS violation.

  • WI2681741
  • MUSKEGO
  • WI
  • 8,150 served

System profile

Source water Groundwater
ZIP 53150
EPA system ID WI2681741

Verify this system on EPA ECHO →

Health-based violations, last 10 years
1
Resolved
1
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
16

Key facts

  • Muskego Water Utility draws water from 8 wells.
  • Record on file since 1992, with 1 health-based violation before October 19, 2016.
  • Lead pipe inventory: 0 lead and 151 unknown out of 3,456 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
350 Oct 17, 2024 Resolved No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Public Notice
OTHER
Oct 17, 2024 Active
Lead and Copper Rule
Monitoring and reporting
Jan 1, 2024 Resolved
Public Notice
OTHER
Jul 1, 2023 Active
Chlorine
Monitoring and reporting
Apr 1, 2023 Resolved
LASSO
Monitoring and reporting
Jan 1, 2017 Resolved
Methoxychlor
Monitoring and reporting
Jan 1, 2017 Resolved
OXAMYL
Monitoring and reporting
Jan 1, 2017 Resolved
Simazine
Monitoring and reporting
Jan 1, 2017 Resolved
BHC-GAMMA
Monitoring and reporting
Jan 1, 2017 Resolved
HEXACHLOROBENZENE
Monitoring and reporting
Jan 1, 2017 Resolved
Carbofuran
Monitoring and reporting
Jan 1, 2017 Resolved
Endrin
Monitoring and reporting
Jan 1, 2017 Resolved
Heptachlor
Monitoring and reporting
Jan 1, 2017 Resolved
Heptachlor epoxide
Monitoring and reporting
Jan 1, 2017 Resolved
Atrazine
Monitoring and reporting
Jan 1, 2017 Resolved
Hexachlorocyclopentadiene
Monitoring and reporting
Jan 1, 2017 Resolved

Full record since 1992

EPA's records for Muskego Water Utility go back to 1992. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 13 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 5
2000s 1 2
2010 to October 18, 2016 0 6
October 19, 2016 to 2019 0 12
2020s 1 4

Most recent health-based violation before October 19, 2016: Total Coliform, began June 2005, Resolved.

Show the health-based violation before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
Jun 1, 2005 Resolved

What the violations mean

LEAD AND COPPER RULE REVISIONS

1 incident

The system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).

The utility had to notify customers about this violation.

Where the water comes from

Muskego Water Utility draws water from 8 wells.

Annual water quality report

Muskego Water Utility must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Wisconsin.