H

Hopi High School, AZ

—no score

Contamination score

Higher = more contaminated vs. other cities.

⚠️5 health-based violations on record.
0
Water sources
20
Violations
0
Pollution sources
0
Self-reported
0
Lawsuits

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Reported illness & cancer claims

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Self-reported issues

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Public water systems

Hopi High School - Bia

PWSID:
090400395
Source:
Ground water
Serves:
1,005 people

EPA & DEP violations

City-wide

20 violations

  • Fluoride — MR violation

    medium severityArchived

    Fluoride MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2026 · 7 months ago · Source ↗

  • Fluoride — MCL violation

    high severityHealth-basedArchived

    Fluoride MCL violation (Archived).

    EPA SDWIS · MCL · Began Jan 1, 2026 · 7 months ago · Source ↗

  • Stage 1 Disinfectants and Disinfection Byproducts Rule — TT violation

    high severityHealth-basedUnaddressed

    Stage 1 Disinfectants and Disinfection Byproducts Rule TT violation (Unaddressed).

    EPA SDWIS · TT · Began Oct 21, 2025 · 9 months ago · Source ↗

  • Public Notice — Other violation

    medium severityUnaddressed

    Public Notice Other violation (Unaddressed).

    EPA SDWIS · Other · Began Oct 1, 2025 · 10 months ago · Source ↗

  • Fluoride — MR violation

    medium severityArchived

    Fluoride MR violation (Archived).

    EPA SDWIS · MR · Began Oct 1, 2025 · 10 months ago · Source ↗

  • Arsenic — MR violation

    medium severityArchived

    Arsenic MR violation (Archived).

    EPA SDWIS · MR · Began Oct 1, 2025 · 10 months ago · Source ↗

  • Arsenic — MCL violation

    high severityHealth-basedArchived

    Arsenic MCL violation (Archived).

    EPA SDWIS · MCL · Began Oct 1, 2025 · 10 months ago · Source ↗

  • Public Notice — Other violation

    medium severityUnaddressed

    Public Notice Other violation (Unaddressed).

    EPA SDWIS · Other · Began Oct 1, 2025 · 10 months ago · Source ↗

  • Fluoride — MCL violation

    high severityHealth-basedArchived

    Fluoride MCL violation (Archived).

    EPA SDWIS · MCL · Began Oct 1, 2025 · 10 months ago · Source ↗

  • Fluoride — MCL violation

    high severityHealth-basedArchived

    Fluoride MCL violation (Archived).

    EPA SDWIS · MCL · Began Jul 1, 2025 · 1 year ago · Source ↗

  • Arsenic — MR violation

    medium severityArchived

    Arsenic MR violation (Archived).

    EPA SDWIS · MR · Began Jul 1, 2025 · 1 year ago · Source ↗

  • Arsenic — MR violation

    medium severityArchived

    Arsenic MR violation (Archived).

    EPA SDWIS · MR · Began Jul 1, 2025 · 1 year ago · Source ↗

  • Public Notice — Other violation

    medium severityUnaddressed

    Public Notice Other violation (Unaddressed).

    EPA SDWIS · Other · Began Jul 1, 2025 · 1 year ago · Source ↗

  • Fluoride — MR violation

    medium severityArchived

    Fluoride MR violation (Archived).

    EPA SDWIS · MR · Began Apr 1, 2025 · 1 year ago · Source ↗

  • Arsenic — MR violation

    medium severityArchived

    Arsenic MR violation (Archived).

    EPA SDWIS · MR · Began Apr 1, 2025 · 1 year ago · Source ↗

  • Revised Total Coliform Rule — MON violation

    medium severityResolved

    Revised Total Coliform Rule MON violation (Resolved).

    EPA SDWIS · MON · Began Feb 1, 2025 · 1 year ago · Source ↗

  • Public Notice — Other violation

    medium severityUnaddressed

    Public Notice Other violation (Unaddressed).

    EPA SDWIS · Other · Began Feb 1, 2025 · 1 year ago · Source ↗

  • Chlorine — MR violation

    medium severityResolved

    Chlorine MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2025 · 1 year ago · Source ↗

  • Arsenic — MR violation

    medium severityArchived

    Arsenic MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2025 · 1 year ago · Source ↗

  • Fluoride — MR violation

    medium severityArchived

    Fluoride MR violation (Archived).

    EPA SDWIS · MR · Began Jan 1, 2025 · 1 year ago · Source ↗

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.