Water Quality: Potosi, WI
3 water systems • 1,115 people served
Multiple Health ViolationsWater Quality Summary
Potosi is served by 3 public water systems with a combined service population of 1,115 people, and has 32 EPA Safe Drinking Water Act violations on record. Critically, 9 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 roughly in line with the national average for Wisconsin. Contaminants associated with violations include Chlorine, Gross Alpha.
Contaminants Found
Eye and nose irritation at high levels; long-term exposure above the MCL may cause liver and kidney damage.
Common source: Water treatment disinfectant added to kill harmful microorganisms
EPA limit: 4.0 mg/L (MRDL — Maximum Residual Disinfectant Level)
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 WATERWORKS | WI1220117 | Groundwater | 718 | 10 |
| TENNYSON WATERWORKS | WI1220120 | Groundwater | 367 | 15 |
| RIVER VISTA ESTATES LLC | WI1220121 | Groundwater | 30 | 7 |
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.
Other Cities in Wisconsin
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.