Northfield, 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
Northfield San Dist 1
- PWSID:
- WI6270004
- Source:
- Ground water
- Serves:
- 50 people
EPA & DEP violations
Northfield San Dist 1
PWSID WI62700047 violationsStage 1 Disinfectants and Disinfection Byproducts Rule — TT violation
high severityHealth-basedResolvedStage 1 Disinfectants and Disinfection Byproducts Rule TT violation (Resolved).
EPA SDWIS · TT · Began May 2, 2022 · 4 years ago · Source ↗
Nitrate — MR violation
medium severityResolvedNitrate 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 Feb 1, 2021 · 5 years ago · Source ↗
Nitrate — MR violation
medium severityResolvedNitrate MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2020 · 6 years ago · Source ↗
Coliform (TCR) — MR violation
medium severityResolvedColiform (TCR) MR violation (Resolved).
EPA SDWIS · MR · Began Apr 1, 2014 · 12 years ago · Source ↗
Chlorine — MR violation
medium severityResolvedChlorine MR violation (Resolved).
EPA SDWIS · MR · Began Apr 1, 2014 · 12 years ago · Source ↗
Stage 1 Disinfectants and Disinfection Byproducts Rule — TT violation
high severityHealth-basedResolvedStage 1 Disinfectants and Disinfection Byproducts Rule TT violation (Resolved).
EPA SDWIS · TT · Began Feb 12, 2014 · 12 years ago · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.