M

Maryville, MO

—no score

Contamination score

Higher = more contaminated vs. other cities.

⚠️6 health-based violations on record.
0
Water sources
18
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

Maryville Pws

PWSID:
MO1010508
Source:
Surface water
Serves:
10,775 people

Great Northwest Wholesale Water Commiss

PWSID:
MO1071603
Source:
Ground water
Serves:
25 people

Nodaway County Pwsd 1

PWSID:
MO1024428
Source:
Surface water
Serves:
6,428 people

EPA & DEP violations

Maryville Pws

PWSID MO101050815 violations

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

    EPA SDWIS · Other · Began Feb 26, 2026 · 5 months ago · Source ↗

  • Interim Enhanced Surface Water Treatment Rule — TT violation

    high severityHealth-basedArchived

    Interim Enhanced Surface Water Treatment Rule TT violation (Archived).

    EPA SDWIS · TT · Began Dec 1, 2025 · 8 months ago · Source ↗

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

    EPA SDWIS · Other · Began Apr 22, 2024 · 2 years ago · Source ↗

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

    EPA SDWIS · Other · Began Apr 22, 2024 · 2 years ago · Source ↗

  • Chlorite — MCL violation

    high severityHealth-basedResolved

    Chlorite MCL violation (Resolved).

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

  • Chlorite — MR violation

    medium severityResolved

    Chlorite MR violation (Resolved).

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

  • Chlorite — MCL violation

    high severityHealth-basedResolved

    Chlorite MCL violation (Resolved).

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

  • Chlorite — MR violation

    medium severityResolved

    Chlorite MR violation (Resolved).

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

  • Chlorine dioxide — MR violation

    medium severityResolved

    Chlorine dioxide MR violation (Resolved).

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

  • Chlorite — MR violation

    medium severityResolved

    Chlorite MR violation (Resolved).

    EPA SDWIS · MR · Began Nov 1, 2023 · 2 years ago · Source ↗

  • Public Notice — Other violation

    medium severityResolved

    Public Notice Other violation (Resolved).

    EPA SDWIS · Other · Began Mar 6, 2023 · 3 years ago · Source ↗

  • Long Term 2 Enhanced Surface Water Treatment Rule — TT violation

    high severityHealth-basedResolved

    Long Term 2 Enhanced Surface Water Treatment Rule TT violation (Resolved).

    EPA SDWIS · TT · Began Dec 27, 2022 · 3 years ago · Source ↗

  • Groundwater Rule — Other violation

    medium severityResolved

    Groundwater Rule Other violation (Resolved).

    EPA SDWIS · Other · Began Aug 27, 2022 · 3 years ago · Source ↗

  • Coliform (TCR) — MCL violation

    high severityHealth-basedResolved

    Coliform (TCR) MCL violation (Resolved).

    EPA SDWIS · MCL · Began May 1, 2010 · 16 years ago · Source ↗

  • Violation — Violation violation

    medium severity

    Contaminant Violation violation.

    EPA SDWIS · Violation · Began — · Source ↗

Nodaway County Pwsd 1

PWSID MO10244283 violations

  • Coliform (TCR) — MCL violation

    high severityHealth-basedResolved

    Coliform (TCR) MCL violation (Resolved).

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

  • Coliform (TCR) — MR violation

    medium severityResolved

    Coliform (TCR) MR violation (Resolved).

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

  • Violation — Violation violation

    medium severity

    Contaminant Violation violation.

    EPA SDWIS · Violation · Began — · Source ↗

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.