U

Union Grove, WI

—no score

Contamination score

Higher = more contaminated vs. other cities.

⚠️3 health-based violations on record.
0
Water sources
20
Violations
0
Pollution sources
0
Self-reported
0
Lawsuits

Share this with friends & family you care about ❤️

Help someone you love know what's in their water — we'll email them Union Grove's report. No sign-ups, no list.

Reported illness & cancer claims

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

Claims are aggregated from public records and community reports and may be unverified. If you believe your illness is linked to local water, request a consultation.

Self-reported issues

No issues reported yet. Be the first to report one.

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

Get water alerts for Union Grove, WI

We'll email you when a new violation, lawsuit, or health report appears for Union Grove's water. Free, unsubscribe anytime.

Home water filtration system

Protect your home

Improve Union Grove's water

A certified filtration system can remove lead, PFAS, nitrates, and the contaminants flagged on this page. Get a free, no-obligation quote tailored to your home.

What are you interested in?

By submitting you agree to be contacted about water treatment options.

Public water systems

Union Grove Waterworks

PWSID:
WI2520200
Source:
Ground water
Serves:
4,900 people

Southern Wisconsin Center

PWSID:
WI2520199
Source:
Ground water
Serves:
950 people

Hickory Haven Mhc

PWSID:
WI2520196
Source:
Ground water
Serves:
303 people

Harvest View Mhc

PWSID:
WI2520201
Source:
Ground water
Serves:
400 people

EPA & DEP violations

Union Grove Waterworks

PWSID WI25202002 violations

  • LEAD AND COPPER RULE REVISIONS — TT violation

    high severityHealth-basedResolved

    LEAD AND COPPER RULE REVISIONS TT violation (Resolved).

    EPA SDWIS · TT · Began Oct 17, 2024 · 1 year ago · Source ↗

  • Public Notice — Other violation

    medium severityUnaddressed

    Public Notice Other violation (Unaddressed).

    EPA SDWIS · Other · Began Oct 17, 2024 · 1 year ago · Source ↗

City-wide

18 violations

  • Radium-228 — MR violation

    medium severityArchived

    Radium-228 MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2026 · 7 months ago · Source ↗

  • Radium-226 — MR violation

    medium severityArchived

    Radium-226 MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2026 · 7 months ago · Source ↗

  • Gross Alpha, Excl. Radon and U — MR violation

    medium severityArchived

    Gross Alpha, Excl. Radon and U MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2026 · 7 months ago · Source ↗

  • Revised Total Coliform Rule — MON violation

    medium severityResolved

    Revised Total Coliform Rule MON violation (Resolved).

    EPA SDWIS · MON · Began Nov 1, 2025 · 9 months ago · Source ↗

  • Arsenic — MCL violation

    high severityHealth-basedArchived

    Arsenic MCL violation (Archived).

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

  • Radium-226 — MR violation

    medium severityArchived

    Radium-226 MR violation (Archived).

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

  • Radium-228 — MR violation

    medium severityArchived

    Radium-228 MR violation (Archived).

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

  • Gross Alpha, Excl. Radon and U — MR violation

    medium severityArchived

    Gross Alpha, Excl. Radon and U MR violation (Archived).

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

  • Gross Alpha, Excl. Radon and U — MR violation

    medium severityArchived

    Gross Alpha, Excl. Radon and U MR violation (Archived).

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

  • Radium-226 — MR violation

    medium severityArchived

    Radium-226 MR violation (Archived).

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

  • Radium-228 — MR violation

    medium severityArchived

    Radium-228 MR violation (Archived).

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

  • Total Haloacetic Acids (HAA5) — MR violation

    medium severityResolved

    Total Haloacetic Acids (HAA5) MR violation (Resolved).

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

  • TTHM — MR violation

    medium severityResolved

    TTHM MR violation (Resolved).

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

  • Stage 1 Disinfectants and Disinfection Byproducts Rule — TT violation

    high severityHealth-basedResolved

    Stage 1 Disinfectants and Disinfection Byproducts Rule TT violation (Resolved).

    EPA SDWIS · TT · Began May 2, 2023 · 3 years ago · Source ↗

  • Gross Alpha, Excl. Radon and U — MR violation

    medium severityArchived

    Gross Alpha, Excl. Radon and U MR violation (Archived).

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

  • Radium-226 — MR violation

    medium severityArchived

    Radium-226 MR violation (Archived).

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

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.