Fairview Heights, IL
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
O Fallon
- PWSID:
- IL1631100
- Source:
- Surface water
- Serves:
- 46,603 people
EPA & DEP violations
O Fallon
PWSID IL16311003 violationsTotal Haloacetic Acids (HAA5) — MR violation
medium severityArchivedTotal Haloacetic Acids (HAA5) MR violation (Archived).
EPA SDWIS · MR · Began Jan 1, 2026 · 8 months ago · Source ↗
TTHM — MR violation
medium severityArchivedTTHM MR violation (Archived).
EPA SDWIS · MR · Began Jan 1, 2026 · 8 months ago · Source ↗
Violation — Violation violation
medium severityContaminant Violation violation.
EPA SDWIS · Violation · Began — · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.