Upper Sipaulovi, Upper Mishongnovi, AZ
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
Mishongnovi (Upper Sipaulovi/Upper Mishongnovi)
- PWSID:
- 090400394
- Source:
- Ground water
- Serves:
- 490 people
EPA & DEP violations
Revised Total Coliform Rule — MON violation
medium severityArchivedRevised Total Coliform Rule MON violation (Archived).
EPA SDWIS · MON · Began Dec 1, 2025 · 6 months ago · Source ↗
Chlorine — MR violation
medium severityArchivedChlorine MR violation (Archived).
EPA SDWIS · MR · Began Oct 1, 2025 · 8 months ago · Source ↗
Public Notice — Other violation
medium severityUnaddressedPublic Notice Other violation (Unaddressed).
EPA SDWIS · Other · Began Jul 1, 2025 · 11 months ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityResolvedRevised Total Coliform Rule MON violation (Resolved).
EPA SDWIS · MON · Began Jul 1, 2025 · 11 months ago · Source ↗
Chlorine — MR violation
medium severityArchivedChlorine MR violation (Archived).
EPA SDWIS · MR · Began Jul 1, 2025 · 11 months ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityArchivedRevised Total Coliform Rule MON violation (Archived).
EPA SDWIS · MON · Began Apr 1, 2023 · 3 years ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityResolvedRevised Total Coliform Rule MON violation (Resolved).
EPA SDWIS · MON · Began Mar 1, 2023 · 3 years ago · Source ↗
Arsenic — MCL violation
high severityHealth-basedResolvedArsenic MCL violation (Resolved).
EPA SDWIS · MCL · Began Jul 1, 2022 · 3 years ago · Source ↗
Arsenic — MCL violation
high severityHealth-basedResolvedArsenic MCL violation (Resolved).
EPA SDWIS · MCL · Began Apr 1, 2022 · 4 years ago · Source ↗
Arsenic — MCL violation
high severityHealth-basedResolvedArsenic MCL violation (Resolved).
EPA SDWIS · MCL · Began Jan 1, 2022 · 4 years ago · Source ↗
Arsenic — MCL violation
high severityHealth-basedResolvedArsenic MCL violation (Resolved).
EPA SDWIS · MCL · Began Oct 1, 2021 · 4 years ago · Source ↗
Arsenic — MCL violation
high severityHealth-basedResolvedArsenic MCL violation (Resolved).
EPA SDWIS · MCL · Began Jul 1, 2021 · 4 years ago · Source ↗
Arsenic — MCL violation
high severityHealth-basedResolvedArsenic MCL violation (Resolved).
EPA SDWIS · MCL · Began Apr 1, 2021 · 5 years ago · Source ↗
Arsenic — MCL violation
high severityHealth-basedResolvedArsenic MCL violation (Resolved).
EPA SDWIS · MCL · Began Jan 1, 2021 · 5 years ago · Source ↗
Arsenic — MCL violation
high severityHealth-basedResolvedArsenic MCL violation (Resolved).
EPA SDWIS · MCL · Began Oct 1, 2020 · 5 years ago · Source ↗
Revised Total Coliform Rule — RPT violation
medium severityResolvedRevised Total Coliform Rule RPT violation (Resolved).
EPA SDWIS · RPT · Began Oct 1, 2020 · 5 years ago · Source ↗
Arsenic — MCL violation
high severityHealth-basedResolvedArsenic MCL violation (Resolved).
EPA SDWIS · MCL · Began Jul 1, 2020 · 5 years ago · Source ↗
Arsenic — MCL violation
high severityHealth-basedResolvedArsenic MCL violation (Resolved).
EPA SDWIS · MCL · Began Apr 1, 2020 · 6 years ago · Source ↗
Arsenic — MCL violation
high severityHealth-basedResolvedArsenic MCL violation (Resolved).
EPA SDWIS · MCL · Began Jan 1, 2020 · 6 years ago · Source ↗
Arsenic — MCL violation
high severityHealth-basedResolvedArsenic MCL violation (Resolved).
EPA SDWIS · MCL · Began Oct 1, 2019 · 6 years ago · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.