Mason City (Rr Name Mason), NE
Contamination score
Higher = more contaminated vs. other cities.
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.

Public water systems
Mason City, Village Of
- PWSID:
- NE3104109
- Source:
- Ground water
- Serves:
- 171 people
EPA & DEP violations
Lead and Copper Rule — MR violation
medium severityUnaddressedLead and Copper Rule MR violation (Unaddressed).
EPA SDWIS · MR · Began Jan 1, 2023 · 3 years ago · Source ↗
Revised Total Coliform Rule — MCL violation
high severityHealth-basedResolvedRevised Total Coliform Rule MCL violation (Resolved).
EPA SDWIS · MCL · Began Aug 1, 2018 · 7 years ago · Source ↗
Revised Total Coliform Rule — MCL violation
high severityHealth-basedResolvedRevised Total Coliform Rule MCL violation (Resolved).
EPA SDWIS · MCL · Began Sep 1, 2017 · 8 years ago · Source ↗
Revised Total Coliform Rule — TT violation
high severityHealth-basedResolvedRevised Total Coliform Rule TT violation (Resolved).
EPA SDWIS · TT · Began Dec 22, 2016 · 9 years ago · Source ↗
Revised Total Coliform Rule — MCL violation
high severityHealth-basedResolvedRevised Total Coliform Rule MCL violation (Resolved).
EPA SDWIS · MCL · Began Oct 1, 2016 · 9 years ago · Source ↗
Coliform (TCR) — MCL violation
high severityHealth-basedResolvedColiform (TCR) MCL violation (Resolved).
EPA SDWIS · MCL · Began Oct 1, 2010 · 15 years ago · Source ↗
Violation — Violation violation
medium severityContaminant Violation violation.
EPA SDWIS · Violation · Began — · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.