Water Quality: Potosi, MO

3 water systems • 3,930 people served

Multiple Health Violations
72
Total Violations
30
Health-Based Violations
3
Water Systems
3,930
Population Served

Water Quality Summary

Potosi is served by 3 public water systems with a combined service population of 3,930 people, and has 72 EPA Safe Drinking Water Act violations on record. Critically, 30 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Potosi's violation count is 89% above the national average for Missouri. Contaminants associated with violations include Gross Alpha.

Contaminants Found

Gross Alpha

Alpha-emitting radioactive particles increase cancer risk, particularly from bone and other internal cancers.

Common source: Natural uranium and radium in geological formations

EPA limit: 15 pCi/L (excluding radon and uranium)

Water Systems Serving Potosi

System Name PWSID Source Population Violations
POTOSI PWS MO6010659 Groundwater 2,527 37
POTOSI EAST MO6069096 Groundwater 900 14
WASHINGTON COUNTY PWSD 1 MO6024633 Groundwater 503 21

Concerned About Your Water?

A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.

Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.

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Data Sources

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.

Verify at epa.govSearch ECHO for MO