Perryville, 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
Perryville Pws
- PWSID:
- MO4010636
- Source:
- Surface water
- Serves:
- 8,555 people
St Marys Seminary
- PWSID:
- MO4069016
- Source:
- Ground water
- Serves:
- 60 people
Perry County Pwsd 2
- PWSID:
- MO4024456
- Source:
- Surface water
- Serves:
- 750 people
Perry County Pwsd 1
- PWSID:
- MO4024455
- Source:
- Ground water
- Serves:
- 2,023 people
EPA & DEP violations
Perryville Pws
PWSID MO40106365 violationsRevised Total Coliform Rule — RPT violation
medium severityResolvedRevised Total Coliform Rule RPT violation (Resolved).
EPA SDWIS · RPT · Began Jun 1, 2024 · 2 years ago · Source ↗
Surface Water Treatment Rule — MR violation
medium severityArchivedSurface Water Treatment Rule MR violation (Archived).
EPA SDWIS · MR · Began Jun 1, 2024 · 2 years ago · Source ↗
Interim Enhanced Surface Water Treatment Rule — MR violation
medium severityArchivedInterim Enhanced Surface Water Treatment Rule MR violation (Archived).
EPA SDWIS · MR · Began Jun 1, 2024 · 2 years ago · Source ↗
Surface Water Treatment Rule — MR violation
medium severityArchivedSurface Water Treatment Rule MR violation (Archived).
EPA SDWIS · MR · Began Jun 1, 2024 · 2 years ago · Source ↗
Interim Enhanced Surface Water Treatment Rule — MR violation
medium severityArchivedInterim Enhanced Surface Water Treatment Rule MR violation (Archived).
EPA SDWIS · MR · Began Jun 1, 2024 · 2 years ago · Source ↗
Perry County Pwsd 2
PWSID MO402445610 violationsLEAD AND COPPER RULE REVISIONS — RPT violation
medium severityResolvedLEAD AND COPPER RULE REVISIONS RPT violation (Resolved).
EPA SDWIS · RPT · Began Oct 17, 2024 · 1 year ago · Source ↗
TTHM — MR violation
medium severityResolvedTTHM MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2023 · 2 years ago · Source ↗
Total Haloacetic Acids (HAA5) — MR violation
medium severityResolvedTotal Haloacetic Acids (HAA5) MR violation (Resolved).
EPA SDWIS · MR · Began Oct 1, 2023 · 2 years ago · Source ↗
TTHM — MCL violation
high severityHealth-basedResolvedTTHM MCL violation (Resolved).
EPA SDWIS · MCL · Began Jan 1, 2019 · 7 years ago · Source ↗
TTHM — MCL violation
high severityHealth-basedResolvedTTHM MCL violation (Resolved).
EPA SDWIS · MCL · Began Oct 1, 2018 · 7 years ago · Source ↗
TTHM — MCL violation
high severityHealth-basedResolvedTTHM MCL violation (Resolved).
EPA SDWIS · MCL · Began Jul 1, 2018 · 8 years ago · Source ↗
Public Notice — Other violation
medium severityResolvedPublic Notice Other violation (Resolved).
EPA SDWIS · Other · Began Jun 30, 2016 · 10 years ago · Source ↗
TTHM — MCL violation
high severityHealth-basedResolvedTTHM MCL violation (Resolved).
EPA SDWIS · MCL · Began Apr 1, 2016 · 10 years ago · Source ↗
TTHM — MCL violation
high severityHealth-basedResolvedTTHM MCL violation (Resolved).
EPA SDWIS · MCL · Began Jan 1, 2016 · 10 years ago · Source ↗
TTHM — MCL violation
high severityHealth-basedResolvedTTHM MCL violation (Resolved).
EPA SDWIS · MCL · Began Oct 1, 2015 · 10 years ago · Source ↗
Perry County Pwsd 1
PWSID MO40244554 violationsCombined Radium (-226 and -228) — MCL violation
high severityHealth-basedResolvedCombined Radium (-226 and -228) MCL violation (Resolved).
EPA SDWIS · MCL · Began Oct 1, 2015 · 10 years ago · Source ↗
Gross Alpha, Excl. Radon and U — MCL violation
high severityHealth-basedResolvedGross Alpha, Excl. Radon and U MCL violation (Resolved).
EPA SDWIS · MCL · Began Oct 1, 2015 · 10 years ago · Source ↗
Gross Alpha, Excl. Radon and U — MCL violation
high severityHealth-basedResolvedGross Alpha, Excl. Radon and U MCL violation (Resolved).
EPA SDWIS · MCL · Began Jul 1, 2015 · 11 years ago · Source ↗
Combined Radium (-226 and -228) — MCL violation
high severityHealth-basedResolvedCombined Radium (-226 and -228) MCL violation (Resolved).
EPA SDWIS · MCL · Began Jul 1, 2015 · 11 years ago · Source ↗
City-wide
1 violationConsumer Confidence Rule — Other violation
medium severityResolvedConsumer Confidence Rule Other violation (Resolved).
EPA SDWIS · Other · Began Jul 1, 2025 · 1 year ago · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.