H

Hollister, MO

—no score

Contamination score

Higher = more contaminated vs. other cities.

⚠️4 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

Hollister Pws

PWSID:
MO5010374
Source:
Ground water
Serves:
4,426 people

Gobblers Knob MHP

PWSID:
MO5048286
Source:
Ground water
Serves:
230 people

Walker MHP

PWSID:
MO5048992
Source:
Ground water
Serves:
52 people

EPA & DEP violations

Hollister Pws

PWSID MO50103741 violation

  • Coliform (TCR) — MCL violation

    high severityHealth-basedResolved

    Coliform (TCR) MCL violation (Resolved).

    EPA SDWIS · MCL · Began Sep 1, 2013 · 12 years ago · Source ↗

City-wide

19 violations

  • Groundwater Rule — MR violation

    medium severityResolved

    Groundwater Rule MR violation (Resolved).

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

  • Groundwater Rule — MR violation

    medium severityResolved

    Groundwater Rule MR violation (Resolved).

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

  • Groundwater Rule — MR violation

    medium severityResolved

    Groundwater Rule MR violation (Resolved).

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

  • Consumer Confidence Rule — Other violation

    medium severityResolved

    Consumer Confidence Rule Other violation (Resolved).

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

  • Consumer Confidence Rule — Other violation

    medium severityResolved

    Consumer Confidence Rule Other violation (Resolved).

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

  • E. COLI — MR violation

    medium severityResolved

    E. COLI MR violation (Resolved).

    EPA SDWIS · MR · Began Apr 1, 2023 · 3 years ago · Source ↗

  • Consumer Confidence Rule — Other violation

    medium severityResolved

    Consumer Confidence Rule Other violation (Resolved).

    EPA SDWIS · Other · Began Jul 1, 2022 · 4 years ago · Source ↗

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2019 · 6 years ago · Source ↗

  • Groundwater Rule — MR violation

    medium severityResolved

    Groundwater Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Sep 1, 2018 · 7 years ago · Source ↗

  • Groundwater Rule — TT violation

    high severityHealth-basedResolved

    Groundwater Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Dec 1, 2016 · 9 years ago · Source ↗

  • Groundwater Rule — MR violation

    medium severityResolved

    Groundwater Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2016 · 9 years ago · Source ↗

  • E. COLI — MR violation

    medium severityResolved

    E. COLI MR violation (Resolved).

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

  • Coliform (TCR) — MR violation

    medium severityResolved

    Coliform (TCR) MR violation (Resolved).

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

  • E. COLI — MR violation

    medium severityResolved

    E. COLI MR violation (Resolved).

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

  • Coliform (TCR) — MCL violation

    high severityHealth-basedResolved

    Coliform (TCR) MCL violation (Resolved).

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

  • Coliform (TCR) — MR violation

    medium severityResolved

    Coliform (TCR) MR violation (Resolved).

    EPA SDWIS · MR · Began Apr 1, 2014 · 12 years ago · Source ↗

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

    EPA SDWIS · Other · Began Nov 5, 2013 · 12 years ago · Source ↗

  • E. COLI — MR violation

    medium severityResolved

    E. COLI MR violation (Resolved).

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

  • Coliform (TCR) — MCL violation

    high severityHealth-basedResolved

    Coliform (TCR) MCL violation (Resolved).

    EPA SDWIS · MCL · Began Sep 1, 2013 · 12 years ago · Source ↗

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.