A

Ajo, AZ

—no score

Contamination score

Higher = more contaminated vs. other cities.

0
Water sources
24
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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Pollution sources & reported claims near your water

Factories, greenhouses, and contaminated sites mapped around the water supply. Tap any circle for detail.

Critical High Medium Reported claim

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Public water systems

Arizona Water Co - Ajo

PWSID:
AZ0410003
Source:
Ground water
Serves:
2,100 people

Ajo Improvement Company

PWSID:
AZ0410001
Source:
Ground water
Serves:
2,654 people

Ajo Dwid

PWSID:
AZ0410153
Source:
Ground water
Serves:
405 people

EPA & DEP violations

Arizona Water Co - Ajo

PWSID AZ04100036 violations

  • Lead and Copper Rule — MR violation

    medium severityUnaddressed

    Lead and Copper Rule MR violation (Unaddressed).

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

  • Revised Total Coliform Rule — RPT violation

    medium severityResolved

    Revised Total Coliform Rule RPT violation (Resolved).

    EPA SDWIS · RPT · Began Oct 1, 2020 · 5 years ago · Source ↗

  • Reporting violation — ARIZONA WATER CO - AJO

    low severityResolved

    EPA SDWIS violation 2780 (code 4B) at ARIZONA WATER CO - AJO (PWSID AZ0410003).

    EPA SDWIS · Reporting violation · Began Oct 1, 2020 · 5 years ago · Source ↗

  • Monitoring violation — ARIZONA WATER CO - AJO

    low severityResolved

    EPA SDWIS violation 2781 (code 27) at ARIZONA WATER CO - AJO (PWSID AZ0410003).

    EPA SDWIS · Monitoring violation · Began Sep 1, 2019 · 6 years ago · Source ↗

  • Monitoring violation — ARIZONA WATER CO - AJO

    low severityResolved

    EPA SDWIS violation 2775 (code 27) at ARIZONA WATER CO - AJO (PWSID AZ0410003).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2015 · 10 years ago · Source ↗

  • Other violation — ARIZONA WATER CO - AJO

    low severityResolved

    EPA SDWIS violation 2725 (code 71) at ARIZONA WATER CO - AJO (PWSID AZ0410003).

    EPA SDWIS · Other violation · Began Jul 1, 2002 · 24 years ago · Source ↗

City-wide

18 violations

  • Revised Total Coliform Rule — RPT violation

    medium severityResolved

    Revised Total Coliform Rule RPT violation (Resolved).

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

  • Revised Total Coliform Rule — RPT violation

    medium severityResolved

    Revised Total Coliform Rule RPT violation (Resolved).

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

  • Revised Total Coliform Rule — RPT violation

    medium severityResolved

    Revised Total Coliform Rule RPT violation (Resolved).

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

  • Revised Total Coliform Rule — RPT violation

    medium severityResolved

    Revised Total Coliform Rule RPT violation (Resolved).

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

  • TTHM — MR violation

    medium severityResolved

    TTHM MR violation (Resolved).

    EPA SDWIS · MR · Began Jul 1, 2024 · 2 years ago · Source ↗

  • Total Haloacetic Acids (HAA5) — MR violation

    medium severityResolved

    Total Haloacetic Acids (HAA5) MR violation (Resolved).

    EPA SDWIS · MR · Began Jul 1, 2024 · 2 years ago · Source ↗

  • Total Haloacetic Acids (HAA5) — MR violation

    medium severityResolved

    Total Haloacetic Acids (HAA5) MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2024 · 2 years ago · Source ↗

  • TTHM — MR violation

    medium severityResolved

    TTHM MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2024 · 2 years ago · Source ↗

  • TTHM — MR violation

    medium severityResolved

    TTHM MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2023 · 2 years ago · Source ↗

  • Total Haloacetic Acids (HAA5) — MR violation

    medium severityResolved

    Total Haloacetic Acids (HAA5) MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2023 · 2 years ago · Source ↗

  • Arsenic — MR violation

    medium severityResolved

    Arsenic MR violation (Resolved).

    EPA SDWIS · MR · Began Apr 1, 2023 · 3 years ago · Source ↗

  • Arsenic — MR violation

    medium severityResolved

    Arsenic MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2022 · 4 years ago · Source ↗

  • Arsenic — MR violation

    medium severityResolved

    Arsenic MR violation (Resolved).

    EPA SDWIS · MR · Began Jul 1, 2021 · 5 years ago · Source ↗

  • Revised Total Coliform Rule — RPT violation

    medium severityResolved

    Revised Total Coliform Rule RPT violation (Resolved).

    EPA SDWIS · RPT · Began Nov 1, 2020 · 5 years ago · Source ↗

  • Total Haloacetic Acids (HAA5) — MR violation

    medium severityResolved

    Total Haloacetic Acids (HAA5) MR violation (Resolved).

    EPA SDWIS · MR · Began Sep 1, 2020 · 5 years ago · Source ↗

  • TTHM — MR violation

    medium severityResolved

    TTHM MR violation (Resolved).

    EPA SDWIS · MR · Began Sep 1, 2020 · 5 years ago · Source ↗

  • Chlorine — MR violation

    medium severityResolved

    Chlorine MR violation (Resolved).

    EPA SDWIS · MR · Began Jul 1, 2020 · 6 years ago · Source ↗

  • Chlorine — MR violation

    medium severityResolved

    Chlorine MR violation (Resolved).

    EPA SDWIS · MR · Began Jul 1, 2020 · 6 years ago · Source ↗

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.