M

Maricopa, AZ

—no score

Contamination score

Higher = more contaminated vs. other cities.

⚠️7 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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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

Maricopa Consolidated Dwid

PWSID:
AZ0411036
Source:
Ground water
Serves:
928 people

New Saddleback Vista

PWSID:
AZ0411557
Source:
Ground water
Serves:
100 people

Thunderbird Farms Dwid

PWSID:
AZ0411100
Source:
Ground water
Serves:
2,231 people

Papago Butte Dwid

PWSID:
AZ0411097
Source:
Ground water
Serves:
530 people

American Realty Mortgage Company

PWSID:
AZ0411301
Source:
Ground water
Serves:
60 people

Valle Escondido

PWSID:
AZ0411409
Source:
Ground water
Serves:
405 people

Gw Santa Cruz Water Co

PWSID:
AZ0411131
Source:
Ground water
Serves:
84,000 people

Copper Mountain Ranch Cfd

PWSID:
AZ0411328
Source:
Ground water
Serves:
1,071 people

Gw Santa Cruz Water -Twin Hawks Water

PWSID:
AZ0411460
Source:
Ground water
Serves:
57 people

Gw Santa Cruz Water - Maricopa Sw

PWSID:
AZ0411575
Source:
Ground water
Serves:
1,170 people

EPA & DEP violations

City-wide

20 violations

  • Chlorine — MR violation

    medium severityArchived

    Chlorine MR violation (Archived).

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

  • Nitrate — MCL violation

    high severityHealth-basedArchived

    Nitrate MCL violation (Archived).

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

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

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

  • 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 — MON violation

    medium severityResolved

    Revised Total Coliform Rule MON violation (Resolved).

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

  • Chlorine — MR violation

    medium severityArchived

    Chlorine MR violation (Archived).

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

  • Nitrate — MCL violation

    high severityHealth-basedArchived

    Nitrate MCL violation (Archived).

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

  • Revised Total Coliform Rule — MCL violation

    high severityHealth-basedResolved

    Revised Total Coliform Rule MCL violation (Resolved).

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

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

    EPA SDWIS · Other · Began Jul 19, 2025 · 1 year ago · Source ↗

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

    EPA SDWIS · Other · Began Jul 19, 2025 · 1 year ago · Source ↗

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

    EPA SDWIS · Other · Began Jul 19, 2025 · 1 year ago · Source ↗

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

    EPA SDWIS · Other · Began Jul 19, 2025 · 1 year ago · Source ↗

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

    EPA SDWIS · Other · Began Jul 12, 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 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 17, 2025 · 1 year ago · Source ↗

  • Nitrate — MCL violation

    high severityHealth-basedResolved

    Nitrate MCL violation (Resolved).

    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 Apr 1, 2025 · 1 year ago · Source ↗

  • Chlorine — MR violation

    medium severityResolved

    Chlorine MR violation (Resolved).

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

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

    EPA SDWIS · Other · Began Jan 25, 2025 · 1 year ago · Source ↗

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.