M

Mukwonago, WI

—no score

Contamination score

Higher = more contaminated vs. other cities.

⚠️1 health-based violation on record.
0
Water sources
20
Violations
0
Pollution sources
0
Self-reported
0
Lawsuits

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Reported illness & cancer claims

No claims reported yet. Be the first to add one.

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Self-reported issues

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Pollution sources & reported claims near your water

Factories, greenhouses, and contaminated sites mapped around the water supply. Tap any circle for detail.

Critical High Medium Reported claim

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Public water systems

Mukwonago Waterworks

PWSID:
WI2680209
Source:
Ground water
Serves:
8,190 people

Heaven City

PWSID:
WI2680624
Source:
Ground water
Serves:
106 people

Norris Inc

PWSID:
WI2680246
Source:
Ground water
Serves:
141 people

EPA & DEP violations

City-wide

20 violations

  • Public Notice — Other violation

    medium severityUnaddressed

    Public Notice Other violation (Unaddressed).

    EPA SDWIS · Other · Began Dec 20, 2025 · 7 months ago · Source ↗

  • Groundwater Rule — TT violation

    high severityHealth-basedUnaddressed

    Groundwater Rule TT violation (Unaddressed).

    EPA SDWIS · TT · Began Dec 20, 2025 · 7 months ago · Source ↗

  • Di(2-ethylhexyl) phthalate — MR violation

    medium severityArchived

    Di(2-ethylhexyl) phthalate MR violation (Archived).

    EPA SDWIS · MR · Began Oct 1, 2025 · 10 months ago · Source ↗

  • Consumer Confidence Rule — Other violation

    medium severityUnaddressed

    Consumer Confidence Rule Other violation (Unaddressed).

    EPA SDWIS · Other · Began Jul 1, 2025 · 1 year ago · Source ↗

  • Consumer Confidence Rule — Other violation

    medium severityUnaddressed

    Consumer Confidence Rule Other violation (Unaddressed).

    EPA SDWIS · Other · Began Jul 1, 2025 · 1 year ago · Source ↗

  • Lead and Copper Rule — MR violation

    medium severityUnaddressed

    Lead and Copper Rule MR violation (Unaddressed).

    EPA SDWIS · MR · Began Jan 1, 2025 · 1 year ago · Source ↗

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Jun 1, 2024 · 2 years ago · Source ↗

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2023 · 3 years ago · Source ↗

  • Radium-226 — MR violation

    medium severityResolved

    Radium-226 MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2022 · 3 years ago · Source ↗

  • Radium-228 — MR violation

    medium severityResolved

    Radium-228 MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2022 · 3 years ago · Source ↗

  • CHLOROBENZENE — MR violation

    medium severityResolved

    CHLOROBENZENE MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2022 · 3 years ago · Source ↗

  • DICHLOROMETHANE — MR violation

    medium severityResolved

    DICHLOROMETHANE MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2022 · 3 years ago · Source ↗

  • Ethylbenzene — MR violation

    medium severityResolved

    Ethylbenzene MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2022 · 3 years ago · Source ↗

  • Tetrachloroethylene — MR violation

    medium severityResolved

    Tetrachloroethylene MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2022 · 3 years ago · Source ↗

  • Trichloroethylene — MR violation

    medium severityResolved

    Trichloroethylene MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2022 · 3 years ago · Source ↗

  • Carbon tetrachloride — MR violation

    medium severityResolved

    Carbon tetrachloride MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2022 · 3 years ago · Source ↗

  • 1,1-Dichloroethylene — MR violation

    medium severityResolved

    1,1-Dichloroethylene MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2022 · 3 years ago · Source ↗

  • p-Dichlorobenzene — MR violation

    medium severityResolved

    p-Dichlorobenzene MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2022 · 3 years ago · Source ↗

  • o-Dichlorobenzene — MR violation

    medium severityResolved

    o-Dichlorobenzene MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2022 · 3 years ago · Source ↗

  • Xylenes, Total — MR violation

    medium severityResolved

    Xylenes, Total MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2022 · 3 years ago · Source ↗

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.