N

Nogales, AZ

—no score

Contamination score

Higher = more contaminated vs. other cities.

⚠️1 health-based violation 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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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

Nogales City Of

PWSID:
AZ0412004
Source:
Ground water
Serves:
22,000 people

Valle Verde Water Company - East

PWSID:
AZ0412009
Source:
Ground water
Serves:
2,331 people

Town & Country - Preston

PWSID:
AZ0412311
Source:
Ground water
Serves:
430 people

Kino Ranch 2

PWSID:
AZ0412015
Source:
Ground water
Serves:
109 people

The Grand Acres

PWSID:
AZ0412305
Source:
Ground water
Serves:
153 people

EPA & DEP violations

Nogales City Of

PWSID AZ04120044 violations

  • Arsenic — MR violation

    medium severityArchived

    Arsenic 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 Jul 1, 2025 · 1 year ago · Source ↗

  • Nitrate — MR violation

    medium severityResolved

    Nitrate MR violation (Resolved).

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

  • Chlorine — MR violation

    medium severityResolved

    Chlorine MR violation (Resolved).

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

Kino Ranch 2

PWSID AZ04120151 violation

  • Chlorine — MR violation

    medium severityResolved

    Chlorine MR violation (Resolved).

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

City-wide

15 violations

  • Chlorine — MR violation

    medium severityArchived

    Chlorine MR violation (Archived).

    EPA SDWIS · MR · Began Nov 1, 2025 · 9 months ago · Source ↗

  • Chlorine — MR violation

    medium severityResolved

    Chlorine MR violation (Resolved).

    EPA SDWIS · MR · Began Nov 1, 2025 · 9 months ago · Source ↗

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

    EPA SDWIS · Other · Began Oct 19, 2025 · 9 months ago · Source ↗

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

    EPA SDWIS · Other · Began Oct 18, 2025 · 9 months ago · Source ↗

  • Public Notice — Other violation

    medium severityUnaddressed

    Public Notice Other violation (Unaddressed).

    EPA SDWIS · Other · Began Oct 17, 2025 · 9 months ago · Source ↗

  • Consumer Confidence Rule — Other violation

    medium severityUnaddressed

    Consumer Confidence Rule Other violation (Unaddressed).

    EPA SDWIS · Other · Began Oct 2, 2025 · 10 months ago · Source ↗

  • Chlorine — MR violation

    medium severityArchived

    Chlorine MR violation (Archived).

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

  • Lead and Copper Rule — MR violation

    medium severityUnaddressed

    Lead and Copper Rule MR violation (Unaddressed).

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

  • Lead and Copper Rule — MR violation

    medium severityUnaddressed

    Lead and Copper Rule MR violation (Unaddressed).

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

  • Chlorine — MR violation

    medium severityResolved

    Chlorine MR violation (Resolved).

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

  • Chlorine — MR violation

    medium severityArchived

    Chlorine MR violation (Archived).

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

  • Chlorine — MR violation

    medium severityResolved

    Chlorine MR violation (Resolved).

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

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

    EPA SDWIS · Other · Began Jun 27, 2025 · 1 year ago · Source ↗

  • Groundwater Rule — TT violation

    high severityHealth-basedResolved

    Groundwater Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Apr 14, 2025 · 1 year ago · Source ↗

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

    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.