C

Carter, MT

—no score

Contamination score

Higher = more contaminated vs. other cities.

⚠️1 health-based violation on record.
0
Water sources
20
Violations
0
Pollution sources
0
Self-reported
0
Lawsuits

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Reported illness & cancer claims

No claims reported yet. Be the first to add one.

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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

Twin Hills Colony Inc

PWSID:
MT0003978
Source:
Surface water
Serves:
78 people

Carter Chouteau Co Water Dist

PWSID:
MT0000520
Source:
Surface water
Serves:
150 people

EPA & DEP violations

City-wide

20 violations

  • Surface Water Treatment Rule — MR violation

    medium severityArchived

    Surface Water Treatment Rule MR violation (Archived).

    EPA SDWIS · MR · Began Mar 1, 2026 · 5 months ago · Source ↗

  • Surface Water Treatment Rule — MR violation

    medium severityArchived

    Surface Water Treatment Rule MR violation (Archived).

    EPA SDWIS · MR · Began Feb 1, 2026 · 6 months ago · Source ↗

  • Surface Water Treatment Rule — MR violation

    medium severityArchived

    Surface Water Treatment Rule MR violation (Archived).

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

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

    high severityHealth-basedArchived

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

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

  • Surface Water Treatment Rule — MR violation

    medium severityArchived

    Surface Water Treatment Rule MR violation (Archived).

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

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Dec 30, 2024 · 1 year ago · Source ↗

  • Surface Water Treatment Rule — MR violation

    medium severityResolved

    Surface Water Treatment Rule MR violation (Resolved).

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

  • Surface Water Treatment Rule — MR violation

    medium severityResolved

    Surface Water Treatment Rule MR violation (Resolved).

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

  • Revised Total Coliform Rule — MON violation

    medium severityResolved

    Revised Total Coliform Rule MON violation (Resolved).

    EPA SDWIS · MON · Began Jan 1, 2024 · 2 years ago · Source ↗

  • Total Haloacetic Acids (HAA5) — MR violation

    medium severityResolved

    Total Haloacetic Acids (HAA5) MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2022 · 3 years ago · Source ↗

  • TTHM — MR violation

    medium severityResolved

    TTHM MR violation (Resolved).

    EPA SDWIS · MR · Began Oct 1, 2022 · 3 years ago · Source ↗

  • Lead and Copper Rule — MR violation

    medium severityResolved

    Lead and Copper Rule MR violation (Resolved).

    EPA SDWIS · MR · Began Dec 30, 2021 · 4 years ago · Source ↗

  • Revised Total Coliform Rule — MON violation

    medium severityResolved

    Revised Total Coliform Rule MON violation (Resolved).

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

  • 1,2,4-Trichlorobenzene — MR violation

    medium severityResolved

    1,2,4-Trichlorobenzene MR violation (Resolved).

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

  • o-Dichlorobenzene — MR violation

    medium severityResolved

    o-Dichlorobenzene MR violation (Resolved).

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

  • p-Dichlorobenzene — MR violation

    medium severityResolved

    p-Dichlorobenzene MR violation (Resolved).

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

  • trans-1,2-Dichloroethylene — MR violation

    medium severityResolved

    trans-1,2-Dichloroethylene MR violation (Resolved).

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

  • 1,2-Dichloroethane — MR violation

    medium severityResolved

    1,2-Dichloroethane MR violation (Resolved).

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

  • Carbon tetrachloride — MR violation

    medium severityResolved

    Carbon tetrachloride MR violation (Resolved).

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

  • Trichloroethylene — MR violation

    medium severityResolved

    Trichloroethylene MR violation (Resolved).

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

Water-related lawsuits

No lawsuits on record.

In the news & sources

No coverage linked yet.