S

San Luis, AZ

—no score

Contamination score

Higher = more contaminated vs. other cities.

⚠️5 health-based violations on record.
0
Water sources
35
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

Cocopah West

PWSID:
090400071
Source:
Ground water
Serves:
325 people

San Luis City Of

PWSID:
AZ0414005
Source:
Ground water
Serves:
39,705 people

EPA & DEP violations

Cocopah West

PWSID 09040007115 violations

  • Reporting violation — Cocopah West

    low severityResolved

    EPA SDWIS violation 04000714B800052025 (code 4B) at Cocopah West (PWSID 090400071).

    EPA SDWIS · Reporting violation · Began May 1, 2025 · 1 year ago · Source ↗

  • Monitoring violation — Cocopah West

    low severityOpen

    EPA SDWIS violation 040007103400012020 (code 03) at Cocopah West (PWSID 090400071).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2020 · 6 years ago · Source ↗

  • Treatment technique violation — Cocopah West

    high severityHealth-basedResolved

    EPA SDWIS violation 04000714507001220140 (code 45) at Cocopah West (PWSID 090400071).

    EPA SDWIS · Treatment technique violation · Began Dec 1, 2014 · 11 years ago · Source ↗

  • Treatment technique violation — Cocopah West

    high severityHealth-basedResolved

    EPA SDWIS violation 04000714507001220141 (code 45) at Cocopah West (PWSID 090400071).

    EPA SDWIS · Treatment technique violation · Began Dec 1, 2014 · 11 years ago · Source ↗

  • Other violation — Cocopah West

    low severityResolved

    EPA SDWIS violation 04000717575001220140 (code 75) at Cocopah West (PWSID 090400071).

    EPA SDWIS · Other violation · Began Dec 1, 2014 · 11 years ago · Source ↗

  • Other violation — Cocopah West

    low severityResolved

    EPA SDWIS violation 04000717575001220141 (code 75) at Cocopah West (PWSID 090400071).

    EPA SDWIS · Other violation · Began Dec 1, 2014 · 11 years ago · Source ↗

  • Monitoring violation — Cocopah West

    low severityResolved

    EPA SDWIS violation 040007152500012011 (code 52) at Cocopah West (PWSID 090400071).

    EPA SDWIS · Monitoring violation · Began Jan 1, 2011 · 15 years ago · Source ↗

  • Other violation — Cocopah West

    low severityResolved

    EPA SDWIS violation 040007171700072006 (code 71) at Cocopah West (PWSID 090400071).

    EPA SDWIS · Other violation · Began Jul 1, 2006 · 20 years ago · Source ↗

  • Other violation — Cocopah West

    low severityResolved

    EPA SDWIS violation 040007171700072005 (code 71) at Cocopah West (PWSID 090400071).

    EPA SDWIS · Other violation · Began Jul 1, 2005 · 21 years ago · Source ↗

  • Other violation — Cocopah West

    low severityResolved

    EPA SDWIS violation 040007171700072002 (code 71) at Cocopah West (PWSID 090400071).

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

  • Other violation — Cocopah West

    low severityResolved

    EPA SDWIS violation 040007171700072001 (code 71) at Cocopah West (PWSID 090400071).

    EPA SDWIS · Other violation · Began Jul 1, 2001 · 25 years ago · Source ↗

  • Other violation — Cocopah West

    low severityResolved

    EPA SDWIS violation 040007171700072000 (code 71) at Cocopah West (PWSID 090400071).

    EPA SDWIS · Other violation · Began Jul 1, 2000 · 26 years ago · Source ↗

  • Monitoring violation — Cocopah West

    low severityResolved

    EPA SDWIS violation 040007151500011998 (code 51) at Cocopah West (PWSID 090400071).

    EPA SDWIS · Monitoring violation · Began Jan 1, 1998 · 28 years ago · Source ↗

  • Monitoring violation — Cocopah West

    low severityResolved

    EPA SDWIS violation 040007151500071996 (code 51) at Cocopah West (PWSID 090400071).

    EPA SDWIS · Monitoring violation · Began Jul 1, 1996 · 30 years ago · Source ↗

  • Monitoring violation — Cocopah West

    low severityResolved

    EPA SDWIS violation 040007151500011996 (code 51) at Cocopah West (PWSID 090400071).

    EPA SDWIS · Monitoring violation · Began Jan 1, 1996 · 30 years ago · Source ↗

City-wide

20 violations

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

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

  • Groundwater Rule — TT violation

    high severityHealth-basedResolved

    Groundwater Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Jun 6, 2024 · 2 years ago · Source ↗

  • Revised Total Coliform Rule — RPT violation

    medium severityResolved

    Revised Total Coliform Rule RPT violation (Resolved).

    EPA SDWIS · RPT · Began Feb 1, 2024 · 2 years ago · Source ↗

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Sep 28, 2021 · 4 years ago · Source ↗

  • Revised Total Coliform Rule — TT violation

    high severityHealth-basedUnaddressed

    Revised Total Coliform Rule TT violation (Unaddressed).

    EPA SDWIS · TT · Began Sep 15, 2021 · 4 years ago · Source ↗

  • TTHM — MR violation

    medium severityResolved

    TTHM MR violation (Resolved).

    EPA SDWIS · MR · Began Sep 8, 2021 · 4 years ago · Source ↗

  • E. COLI — MR violation

    medium severityResolved

    E. COLI MR violation (Resolved).

    EPA SDWIS · MR · Began Sep 1, 2021 · 4 years ago · Source ↗

  • Groundwater Rule — TT violation

    high severityHealth-basedResolved

    Groundwater Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Aug 5, 2021 · 5 years ago · Source ↗

  • Revised Total Coliform Rule — Other violation

    medium severityResolved

    Revised Total Coliform Rule Other violation (Resolved).

    EPA SDWIS · Other · Began Aug 1, 2021 · 5 years ago · Source ↗

  • Consumer Confidence Rule — Other violation

    medium severityResolved

    Consumer Confidence Rule Other violation (Resolved).

    EPA SDWIS · Other · Began Jul 1, 2019 · 7 years ago · Source ↗

  • Revised Total Coliform Rule — RPT violation

    medium severityResolved

    Revised Total Coliform Rule RPT violation (Resolved).

    EPA SDWIS · RPT · Began May 1, 2019 · 7 years ago · Source ↗

  • Revised Total Coliform Rule — RPT violation

    medium severityResolved

    Revised Total Coliform Rule RPT violation (Resolved).

    EPA SDWIS · RPT · Began Sep 1, 2017 · 8 years ago · Source ↗

  • E. COLI — MR violation

    medium severityResolved

    E. COLI MR violation (Resolved).

    EPA SDWIS · MR · Began Feb 12, 2015 · 11 years ago · Source ↗

  • E. COLI — MR violation

    medium severityResolved

    E. COLI MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 15, 2015 · 11 years ago · Source ↗

  • Coliform (TCR) — MR violation

    medium severityResolved

    Coliform (TCR) MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2015 · 11 years ago · Source ↗

  • Coliform (TCR) — MR violation

    medium severityResolved

    Coliform (TCR) MR violation (Resolved).

    EPA SDWIS · MR · Began Dec 1, 2014 · 11 years ago · Source ↗

  • Consumer Confidence Rule — Other violation

    medium severityResolved

    Consumer Confidence Rule Other violation (Resolved).

    EPA SDWIS · Other · Began Jul 1, 2014 · 12 years ago · Source ↗

  • Consumer Confidence Rule — Other violation

    medium severityResolved

    Consumer Confidence Rule Other violation (Resolved).

    EPA SDWIS · Other · Began Oct 1, 2013 · 12 years ago · Source ↗

  • Consumer Confidence Rule — Other violation

    medium severityResolved

    Consumer Confidence Rule Other violation (Resolved).

    EPA SDWIS · Other · Began Jul 1, 2013 · 13 years ago · Source ↗

  • Thallium, Total — MR violation

    medium severityResolved

    Thallium, Total MR violation (Resolved).

    EPA SDWIS · MR · Began Jan 1, 2012 · 14 years ago · Source ↗

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.