Chippewa Falls, 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
Chippewa Falls Waterworks
- PWSID:
- WI6090456
- Source:
- Ground water
- Serves:
- 13,375 people
Lake Hallie Waterworks Village Of
- PWSID:
- WI6090849
- Source:
- Ground water
- Serves:
- 6,701 people
Hoffmanns Wissota Court
- PWSID:
- WI6090459
- Source:
- Ground water
- Serves:
- 126 people
Lafayette Court
- PWSID:
- WI6090454
- Source:
- Ground water
- Serves:
- 78 people
EPA & DEP violations
City-wide
20 violationsLEAD AND COPPER RULE REVISIONS — RPT violation
medium severityUnaddressedLEAD AND COPPER RULE REVISIONS RPT violation (Unaddressed).
EPA SDWIS · RPT · Began Jul 2, 2025 · 1 year ago · Source ↗
Lead and Copper Rule — MR violation
medium severityResolvedLead and Copper Rule MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2025 · 1 year ago · Source ↗
Lead and Copper Rule — MR violation
medium severityResolvedLead and Copper Rule MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2025 · 1 year ago · Source ↗
Lead and Copper Rule — MR violation
medium severityResolvedLead and Copper Rule MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2025 · 1 year ago · Source ↗
LEAD AND COPPER RULE REVISIONS — TT violation
high severityHealth-basedUnaddressedLEAD AND COPPER RULE REVISIONS TT violation (Unaddressed).
EPA SDWIS · TT · Began Oct 17, 2024 · 1 year ago · Source ↗
LEAD AND COPPER RULE REVISIONS — RPT violation
medium severityResolvedLEAD AND COPPER RULE REVISIONS RPT violation (Resolved).
EPA SDWIS · RPT · Began Oct 17, 2024 · 1 year ago · Source ↗
Public Notice — Other violation
medium severityUnaddressedPublic Notice Other violation (Unaddressed).
EPA SDWIS · Other · Began Oct 17, 2024 · 1 year ago · Source ↗
Public Notice — Other violation
medium severityUnaddressedPublic Notice Other violation (Unaddressed).
EPA SDWIS · Other · Began Oct 17, 2024 · 1 year ago · Source ↗
Lead and Copper Rule — MR violation
medium severityResolvedLead and Copper Rule MR violation (Resolved).
EPA SDWIS · MR · Began Jun 1, 2024 · 2 years ago · Source ↗
Lead and Copper Rule — MR violation
medium severityResolvedLead and Copper Rule MR violation (Resolved).
EPA SDWIS · MR · Began Jun 1, 2023 · 3 years ago · Source ↗
TTHM — MR violation
medium severityResolvedTTHM MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2023 · 3 years ago · Source ↗
Total Haloacetic Acids (HAA5) — MR violation
medium severityResolvedTotal Haloacetic Acids (HAA5) MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2023 · 3 years ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityResolvedRevised Total Coliform Rule MON violation (Resolved).
EPA SDWIS · MON · Began Jul 1, 2022 · 4 years ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityResolvedRevised Total Coliform Rule MON violation (Resolved).
EPA SDWIS · MON · Began Jun 1, 2022 · 4 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 ↗
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 ↗
Revised Total Coliform Rule — MON violation
medium severityResolvedRevised Total Coliform Rule MON violation (Resolved).
EPA SDWIS · MON · Began Aug 1, 2021 · 5 years ago · Source ↗
Nitrate — MCL violation
high severityHealth-basedResolvedNitrate MCL violation (Resolved).
EPA SDWIS · MCL · Began Apr 1, 2020 · 6 years ago · Source ↗
Coliform (TCR) — MR violation
medium severityResolvedColiform (TCR) MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2016 · 10 years ago · Source ↗
Nitrate — MR violation
medium severityResolvedNitrate MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2015 · 10 years ago · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.