Waupun, WI
Contamination score
Higher = more contaminated vs. other cities.
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Reported illness & cancer claims
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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.
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Public water systems
Waupun Utilities
- PWSID:
- WI1140131
- Source:
- Ground water
- Serves:
- 8,056 people
Marshview Terrace
- PWSID:
- WI1140156
- Source:
- Ground water
- Serves:
- 40 people
Waupun Correctional Inst
- PWSID:
- WI1140142
- Source:
- Ground water
- Serves:
- 3,706 people
EPA & DEP violations
City-wide
20 violationsGross Alpha, Excl. Radon and U — MCL violation
high severityHealth-basedArchivedGross Alpha, Excl. Radon and U MCL violation (Archived).
EPA SDWIS · MCL · Began Jan 1, 2026 · 7 months ago · Source ↗
Combined Radium (-226 and -228) — MCL violation
high severityHealth-basedArchivedCombined Radium (-226 and -228) MCL violation (Archived).
EPA SDWIS · MCL · Began Jan 1, 2026 · 7 months ago · Source ↗
Gross Alpha, Excl. Radon and U — MCL violation
high severityHealth-basedArchivedGross Alpha, Excl. Radon and U MCL violation (Archived).
EPA SDWIS · MCL · Began Oct 1, 2025 · 10 months ago · Source ↗
Radium-226 — MR violation
medium severityResolvedRadium-226 MR violation (Resolved).
EPA SDWIS · MR · Began Jul 1, 2025 · 1 year ago · Source ↗
Radium-228 — MR violation
medium severityResolvedRadium-228 MR violation (Resolved).
EPA SDWIS · MR · Began Jul 1, 2025 · 1 year ago · Source ↗
Combined Radium (-226 and -228) — MCL violation
high severityHealth-basedArchivedCombined Radium (-226 and -228) MCL violation (Archived).
EPA SDWIS · MCL · Began Apr 1, 2025 · 1 year ago · Source ↗
Consumer Confidence Rule — Other violation
medium severityResolvedConsumer Confidence Rule Other violation (Resolved).
EPA SDWIS · Other · Began Jul 1, 2024 · 2 years ago · Source ↗
Consumer Confidence Rule — Other violation
medium severityResolvedConsumer Confidence Rule Other violation (Resolved).
EPA SDWIS · Other · Began Jul 1, 2024 · 2 years ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityResolvedRevised Total Coliform Rule MON violation (Resolved).
EPA SDWIS · MON · Began Jun 1, 2024 · 2 years ago · Source ↗
Combined Radium (-226 and -228) — MCL violation
high severityHealth-basedArchivedCombined Radium (-226 and -228) MCL violation (Archived).
EPA SDWIS · MCL · Began Apr 1, 2023 · 3 years ago · Source ↗
Lead and Copper Rule — MR violation
medium severityResolvedLead and Copper Rule MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2022 · 4 years ago · Source ↗
Combined Radium (-226 and -228) — MCL violation
high severityHealth-basedArchivedCombined Radium (-226 and -228) MCL violation (Archived).
EPA SDWIS · MCL · Began Oct 1, 2020 · 5 years ago · Source ↗
Public Notice — Other violation
medium severityResolvedPublic Notice Other violation (Resolved).
EPA SDWIS · Other · Began Sep 8, 2020 · 5 years ago · Source ↗
Public Notice — Other violation
medium severityResolvedPublic Notice Other violation (Resolved).
EPA SDWIS · Other · Began Sep 8, 2020 · 5 years ago · Source ↗
Combined Radium (-226 and -228) — MCL violation
high severityHealth-basedArchivedCombined Radium (-226 and -228) MCL violation (Archived).
EPA SDWIS · MCL · Began Jul 1, 2020 · 6 years ago · Source ↗
Combined Radium (-226 and -228) — MCL violation
high severityHealth-basedArchivedCombined Radium (-226 and -228) MCL violation (Archived).
EPA SDWIS · MCL · Began Apr 1, 2020 · 6 years ago · Source ↗
Combined Radium (-226 and -228) — MCL violation
high severityHealth-basedArchivedCombined Radium (-226 and -228) MCL violation (Archived).
EPA SDWIS · MCL · Began Jan 1, 2020 · 6 years ago · Source ↗
Combined Radium (-226 and -228) — MCL violation
high severityHealth-basedArchivedCombined Radium (-226 and -228) MCL violation (Archived).
EPA SDWIS · MCL · Began Oct 1, 2019 · 6 years ago · Source ↗
Gross Alpha, Excl. Radon and U — MCL violation
high severityHealth-basedResolvedGross Alpha, Excl. Radon and U MCL violation (Resolved).
EPA SDWIS · MCL · Began Apr 1, 2017 · 9 years ago · Source ↗
Public Notice — Other violation
medium severityUnaddressedPublic Notice Other violation (Unaddressed).
EPA SDWIS · Other · Began Feb 1, 2017 · 9 years ago · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.