Clarkton, MO
Contamination score
Higher = more contaminated vs. other cities.
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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.
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Public water systems
Clarkton Pws
- PWSID:
- MO4010170
- Source:
- Ground water
- Serves:
- 1,124 people
EPA & DEP violations
Clarkton Pws
PWSID MO401017020 violationsGroundwater Rule — MR violation
medium severityArchivedGroundwater Rule MR violation (Archived).
EPA SDWIS · MR · Began Mar 1, 2026 · 5 months ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityResolvedRevised Total Coliform Rule MON violation (Resolved).
EPA SDWIS · MON · Began Jun 1, 2025 · 1 year ago · Source ↗
Groundwater Rule — MR violation
medium severityArchivedGroundwater Rule MR violation (Archived).
EPA SDWIS · MR · Began Dec 1, 2024 · 1 year ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityResolvedRevised Total Coliform Rule MON violation (Resolved).
EPA SDWIS · MON · Began May 1, 2024 · 2 years ago · Source ↗
Nitrate-Nitrite — MR violation
medium severityResolvedNitrate-Nitrite MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2024 · 2 years ago · Source ↗
Groundwater Rule — TT violation
high severityHealth-basedResolvedGroundwater Rule TT violation (Resolved).
EPA SDWIS · TT · Began Oct 1, 2022 · 3 years ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityResolvedRevised Total Coliform Rule MON violation (Resolved).
EPA SDWIS · MON · Began Jun 1, 2022 · 4 years ago · Source ↗
Public Notice — Other violation
medium severityResolvedPublic Notice Other violation (Resolved).
EPA SDWIS · Other · Began May 26, 2022 · 4 years ago · Source ↗
Nitrate-Nitrite — MR violation
medium severityResolvedNitrate-Nitrite MR violation (Resolved).
EPA SDWIS · MR · Began Jan 1, 2022 · 4 years ago · Source ↗
Groundwater Rule — MR violation
medium severityResolvedGroundwater Rule MR violation (Resolved).
EPA SDWIS · MR · Began May 1, 2021 · 5 years ago · Source ↗
Groundwater Rule — TT violation
high severityHealth-basedResolvedGroundwater Rule TT violation (Resolved).
EPA SDWIS · TT · Began Apr 1, 2021 · 5 years ago · Source ↗
Consumer Confidence Rule — Other violation
medium severityResolvedConsumer Confidence Rule Other violation (Resolved).
EPA SDWIS · Other · Began Jul 1, 2020 · 6 years ago · Source ↗
Groundwater Rule — TT violation
high severityHealth-basedResolvedGroundwater Rule TT violation (Resolved).
EPA SDWIS · TT · Began Jan 1, 2020 · 6 years ago · Source ↗
Groundwater Rule — MR violation
medium severityResolvedGroundwater Rule MR violation (Resolved).
EPA SDWIS · MR · Began Dec 1, 2019 · 6 years ago · Source ↗
Revised Total Coliform Rule — MON violation
medium severityResolvedRevised Total Coliform Rule MON violation (Resolved).
EPA SDWIS · MON · Began Dec 1, 2019 · 6 years ago · Source ↗
Groundwater Rule — MR violation
medium severityResolvedGroundwater Rule MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2018 · 7 years ago · Source ↗
Groundwater Rule — TT violation
high severityHealth-basedResolvedGroundwater Rule TT violation (Resolved).
EPA SDWIS · TT · Began Jul 1, 2017 · 9 years ago · Source ↗
Coliform (TCR) — MR violation
medium severityResolvedColiform (TCR) MR violation (Resolved).
EPA SDWIS · MR · Began Nov 1, 2015 · 10 years ago · Source ↗
Groundwater Rule — MR violation
medium severityResolvedGroundwater Rule MR violation (Resolved).
EPA SDWIS · MR · Began Jul 1, 2015 · 11 years ago · Source ↗
Groundwater Rule — TT violation
high severityHealth-basedResolvedGroundwater Rule TT violation (Resolved).
EPA SDWIS · TT · Began Apr 1, 2015 · 11 years ago · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.