H

Hermosa, SD

—no score

Contamination score

Higher = more contaminated vs. other cities.

⚠️4 health-based violations on record.
0
Water sources
15
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

Hermosa-Old System

PWSID:
SD4600154
Source:
Ground water
Serves:
420 people

North Hermosa Wud

PWSID:
SD4600329
Source:
Ground water
Serves:
40 people

Hermosa Water Users Association

PWSID:
SD4602180
Source:
Ground water
Serves:
108 people

EPA & DEP violations

Hermosa-Old System

PWSID SD46001546 violations

  • Revised Total Coliform Rule — MON violation

    medium severityResolved

    Revised Total Coliform Rule MON violation (Resolved).

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

  • Combined Uranium — MR violation

    medium severityResolved

    Combined Uranium MR violation (Resolved).

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

  • Combined Radium (-226 and -228) — MR violation

    medium severityResolved

    Combined Radium (-226 and -228) MR violation (Resolved).

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

  • Gross Alpha, Excl. Radon and U — MR violation

    medium severityResolved

    Gross Alpha, Excl. Radon and U MR violation (Resolved).

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

  • Stage 1 Disinfectants and Disinfection Byproducts Rule — TT violation

    high severityHealth-basedResolved

    Stage 1 Disinfectants and Disinfection Byproducts Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Feb 1, 2010 · 16 years ago · Source ↗

  • Violation — Violation violation

    medium severity

    Contaminant Violation violation.

    EPA SDWIS · Violation · Began — · Source ↗

City-wide

9 violations

  • Public Notice — Other violation

    medium severityUnaddressed

    Public Notice Other violation (Unaddressed).

    EPA SDWIS · Other · Began Dec 13, 2025 · 9 months ago · Source ↗

  • Stage 1 Disinfectants and Disinfection Byproducts Rule — TT violation

    high severityHealth-basedUnaddressed

    Stage 1 Disinfectants and Disinfection Byproducts Rule TT violation (Unaddressed).

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

  • Revised Total Coliform Rule — MON violation

    medium severityResolved

    Revised Total Coliform Rule MON violation (Resolved).

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

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

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

  • Revised Total Coliform Rule — TT violation

    high severityHealth-basedResolved

    Revised Total Coliform Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Oct 5, 2019 · 7 years ago · Source ↗

  • Revised Total Coliform Rule — MON violation

    medium severityResolved

    Revised Total Coliform Rule MON violation (Resolved).

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

  • Revised Total Coliform Rule — MCL violation

    high severityHealth-basedResolved

    Revised Total Coliform Rule MCL violation (Resolved).

    EPA SDWIS · MCL · Began Aug 1, 2017 · 9 years ago · Source ↗

  • Coliform (TCR) — MR violation

    medium severityResolved

    Coliform (TCR) MR violation (Resolved).

    EPA SDWIS · MR · Began Aug 1, 2013 · 13 years ago · Source ↗

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.