Hopi High School, AZ

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Public water systems

EPA & DEP violations

• 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 · 7 months ago · Source ↗

• Fluoride — MCL violation

  high severityHealth-basedArchived

  Fluoride MCL violation (Archived).

  EPA SDWIS · MCL · Began Oct 1, 2025 · 8 months ago · Source ↗

• Fluoride — MR violation

  medium severityArchived

  Fluoride MR violation (Archived).

  EPA SDWIS · MR · Began Oct 1, 2025 · 8 months ago · Source ↗

• Arsenic — MR violation

  medium severityArchived

  Arsenic MR violation (Archived).

  EPA SDWIS · MR · Began Oct 1, 2025 · 8 months ago · Source ↗

• Arsenic — MCL violation

  high severityHealth-basedArchived

  Arsenic MCL violation (Archived).

  EPA SDWIS · MCL · Began Oct 1, 2025 · 8 months ago · Source ↗

• Fluoride — MCL violation

  high severityHealth-basedArchived

  Fluoride MCL violation (Archived).

  EPA SDWIS · MCL · Began Jul 1, 2025 · 11 months ago · Source ↗

• Arsenic — MR violation

  medium severityArchived

  Arsenic MR violation (Archived).

  EPA SDWIS · MR · Began Jul 1, 2025 · 11 months ago · Source ↗

• Arsenic — MR violation

  medium severityArchived

  Arsenic MR violation (Archived).

  EPA SDWIS · MR · Began Jul 1, 2025 · 11 months ago · Source ↗

• Public Notice — Other violation

  medium severityUnaddressed

  Public Notice Other violation (Unaddressed).

  EPA SDWIS · Other · Began Jul 1, 2025 · 11 months ago · Source ↗

• Arsenic — MR violation

  medium severityArchived

  Arsenic MR violation (Archived).

  EPA SDWIS · MR · Began Apr 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 ↗

• 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 ↗

• Nitrate — MR violation

  medium severityArchived

  Nitrate MR violation (Archived).

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

• Public Notice — Other violation

  medium severityUnaddressed

  Public Notice Other violation (Unaddressed).

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

• LEAD AND COPPER RULE REVISIONS — RPT violation

  medium severityUnaddressed

  LEAD AND COPPER RULE REVISIONS RPT violation (Unaddressed).

  EPA SDWIS · RPT · Began Nov 16, 2024 · 1 year ago · Source ↗

• LEAD AND COPPER RULE REVISIONS — TT violation

  high severityHealth-basedUnaddressed

  LEAD AND COPPER RULE REVISIONS TT violation (Unaddressed).

  EPA SDWIS · TT · Began Oct 17, 2024 · 1 year ago · Source ↗

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.