S

Stanfield, AZ

—no score

Contamination score

Higher = more contaminated vs. other cities.

⚠️13 health-based violations on record.
0
Water sources
57
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 - Pinal Valley

PWSID:
AZ0411009
Source:
Ground water
Serves:
134,432 people

Maricopa Mountain Dwid 1

PWSID:
AZ0411087
Source:
Ground water
Serves:
450 people

Antelope Peak Dwid

PWSID:
AZ0411712
Source:
Ground water
Serves:
150 people

Maricopa Mountain Dwid 2

PWSID:
AZ0411322
Source:
Ground water
Serves:
120 people

EPA & DEP violations

Arizona Water Co - Pinal Valley

PWSID AZ041100937 violations

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityResolved

    EPA SDWIS violation 30004 (code 34) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

    EPA SDWIS · Monitoring violation · Began Aug 20, 2025 · 11 months ago · Source ↗

  • E. COLI — MR violation

    medium severityResolved

    E. COLI MR violation (Resolved).

    EPA SDWIS · MR · Began Aug 20, 2025 · 11 months ago · Source ↗

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29976 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29977 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29978 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29979 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29980 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29981 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29982 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29983 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29984 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29985 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29986 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29987 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29988 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29989 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29990 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29991 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29992 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29993 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29994 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29995 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29996 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29997 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29998 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 29999 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 30000 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 30001 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 30002 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityOpen

    EPA SDWIS violation 30003 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Arsenic — MR violation

    medium severityResolved

    Arsenic MR violation (Resolved).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityResolved

    EPA SDWIS violation 29948 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Reporting violation — ARIZONA WATER CO - PINAL VALLEY

    low severityResolved

    EPA SDWIS violation 29947 (code 4B) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityResolved

    EPA SDWIS violation 29905 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2016 · 10 years ago · Source ↗

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityResolved

    EPA SDWIS violation 29912 (code 27) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

  • Monitoring violation — ARIZONA WATER CO - PINAL VALLEY

    low severityResolved

    EPA SDWIS violation 29934 (code 03) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2008 · 18 years ago · Source ↗

  • Other violation — ARIZONA WATER CO - PINAL VALLEY

    low severityResolved

    EPA SDWIS violation 29792 (code 71) at ARIZONA WATER CO - PINAL VALLEY (PWSID AZ0411009).

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

City-wide

20 violations

  • Nitrate — MCL violation

    high severityHealth-basedArchived

    Nitrate MCL violation (Archived).

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

  • Nitrate — MCL violation

    high severityHealth-basedArchived

    Nitrate MCL violation (Archived).

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

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

    EPA SDWIS · Other · Began Sep 27, 2025 · 10 months ago · Source ↗

  • LEAD AND COPPER RULE REVISIONS — RPT violation

    medium severityUnaddressed

    LEAD AND COPPER RULE REVISIONS RPT violation (Unaddressed).

    EPA SDWIS · RPT · Began Jul 2, 2025 · 1 year ago · Source ↗

  • Nitrate — MCL violation

    high severityHealth-basedArchived

    Nitrate MCL violation (Archived).

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

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

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

  • Nitrate — MCL violation

    high severityHealth-basedArchived

    Nitrate MCL violation (Archived).

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

  • Nitrate — MCL violation

    high severityHealth-basedArchived

    Nitrate MCL violation (Archived).

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

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

    EPA SDWIS · Other · Began Dec 20, 2024 · 1 year ago · Source ↗

  • LEAD AND COPPER RULE REVISIONS — RPT violation

    medium severityResolved

    LEAD AND COPPER RULE REVISIONS RPT violation (Resolved).

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

  • LEAD AND COPPER RULE REVISIONS — TT violation

    high severityHealth-basedResolved

    LEAD AND COPPER RULE REVISIONS TT violation (Resolved).

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

  • Nitrate — MCL violation

    high severityHealth-basedArchived

    Nitrate MCL violation (Archived).

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

  • Nitrate — MCL violation

    high severityHealth-basedArchived

    Nitrate MCL violation (Archived).

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

  • Nitrate — MCL violation

    high severityHealth-basedArchived

    Nitrate MCL violation (Archived).

    EPA SDWIS · MCL · Began Apr 1, 2024 · 2 years ago · Source ↗

  • Nitrate — MCL violation

    high severityHealth-basedArchived

    Nitrate MCL violation (Archived).

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

  • Combined Uranium — MR violation

    medium severityResolved

    Combined Uranium MR violation (Resolved).

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

  • Nitrate — MCL violation

    high severityHealth-basedResolved

    Nitrate MCL violation (Resolved).

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

  • Nitrate — MCL violation

    high severityHealth-basedArchived

    Nitrate MCL violation (Archived).

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

  • Nitrate — MCL violation

    high severityHealth-basedArchived

    Nitrate MCL violation (Archived).

    EPA SDWIS · MCL · Began Jul 1, 2023 · 3 years ago · Source ↗

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.