Mount Vernon, 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
Mount Vernon Pws
- PWSID:
- MO5010553
- Source:
- Ground water
- Serves:
- 4,575 people
Jamestowne MHP
- PWSID:
- MO5048294
- Source:
- Ground water
- Serves:
- 46 people
EPA & DEP violations
Mount Vernon Pws
PWSID MO50105532 violationsLEAD AND COPPER RULE REVISIONS — RPT violation
medium severityUnaddressedLEAD AND COPPER RULE REVISIONS RPT violation (Unaddressed).
EPA SDWIS · RPT · Began Jul 2, 2025 · 1 year ago · Source ↗
Lead and Copper Rule — MR violation
medium severityResolvedLead and Copper Rule MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2024 · 1 year ago · Source ↗
City-wide
18 violationsGroundwater Rule — MR violation
medium severityResolvedGroundwater Rule MR violation (Resolved).
EPA SDWIS · MR · Began Aug 1, 2025 · 1 year ago · Source ↗
Consumer Confidence Rule — Other violation
medium severityUnaddressedConsumer Confidence Rule Other violation (Unaddressed).
EPA SDWIS · Other · Began Jul 1, 2025 · 1 year ago · Source ↗
Groundwater Rule — MR violation
medium severityResolvedGroundwater Rule MR violation (Resolved).
EPA SDWIS · MR · Began Apr 1, 2025 · 1 year ago · Source ↗
Groundwater Rule — MR violation
medium severityResolvedGroundwater Rule MR violation (Resolved).
EPA SDWIS · MR · Began Dec 1, 2024 · 1 year ago · Source ↗
LEAD AND COPPER RULE REVISIONS — RPT violation
medium severityUnaddressedLEAD AND COPPER RULE REVISIONS RPT violation (Unaddressed).
EPA SDWIS · RPT · Began Oct 17, 2024 · 1 year ago · Source ↗
Groundwater Rule — MR violation
medium severityResolvedGroundwater Rule MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2024 · 1 year ago · Source ↗
Lead and Copper Rule — MR violation
medium severityUnaddressedLead and Copper Rule MR violation (Unaddressed).
EPA SDWIS · MR · Began Oct 1, 2024 · 1 year ago · Source ↗
Public Notice — Other violation
medium severityResolvedPublic Notice Other violation (Resolved).
EPA SDWIS · Other · Began Sep 30, 2024 · 1 year ago · Source ↗
Public Notice — Other violation
medium severityResolvedPublic Notice Other violation (Resolved).
EPA SDWIS · Other · Began Sep 30, 2024 · 1 year ago · Source ↗
Public Notice — Other violation
medium severityResolvedPublic Notice Other violation (Resolved).
EPA SDWIS · Other · Began Aug 4, 2024 · 2 years ago · Source ↗
Public Notice — Other violation
medium severityResolvedPublic Notice Other violation (Resolved).
EPA SDWIS · Other · Began Aug 4, 2024 · 2 years ago · Source ↗
Groundwater Rule — MR violation
medium severityResolvedGroundwater Rule MR violation (Resolved).
EPA SDWIS · MR · Began Aug 1, 2024 · 2 years ago · Source ↗
Public Notice — Other violation
medium severityResolvedPublic Notice Other violation (Resolved).
EPA SDWIS · Other · Began Jul 2, 2024 · 2 years ago · Source ↗
Consumer Confidence Rule — Other violation
medium severityResolvedConsumer Confidence Rule Other violation (Resolved).
EPA SDWIS · Other · Began Jul 1, 2024 · 2 years ago · Source ↗
Groundwater Rule — TT violation
high severityHealth-basedResolvedGroundwater Rule TT violation (Resolved).
EPA SDWIS · TT · Began Jul 1, 2024 · 2 years ago · Source ↗
Public Notice — Other violation
medium severityResolvedPublic Notice Other violation (Resolved).
EPA SDWIS · Other · Began Jun 30, 2024 · 2 years ago · Source ↗
Groundwater Rule — MR violation
medium severityResolvedGroundwater Rule MR violation (Resolved).
EPA SDWIS · MR · Began Jun 1, 2024 · 2 years ago · Source ↗
Groundwater Rule — TT violation
high severityHealth-basedResolvedGroundwater Rule TT violation (Resolved).
EPA SDWIS · TT · Began May 1, 2024 · 2 years ago · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.