Water Quality: Prairie Du Chien, WI
3 water systems • 6,505 people served
Some ConcernsWater Quality Summary
Prairie Du Chien is served by 3 public water systems with a combined service population of 6,505 people, and has 14 EPA Safe Drinking Water Act violations on record. Critically, 2 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Prairie Du Chien's violation count is 57% below the national average for Wisconsin. Contaminants associated with violations include Chlorine Dioxide, Stage 2 DBP.
Contaminants Found
Can cause anemia in infants and young children; may cause nervous system effects at high levels.
Common source: Water treatment disinfectant used to control taste, odor, and microorganisms
EPA limit: 0.8 mg/L
Trihalomethanes and haloacetic acids that increase cancer risk and may cause adverse reproductive outcomes.
Common source: Chlorine disinfection reacting with natural organic matter in source water
EPA limit: TTHM: 0.080 mg/L; HAA5: 0.060 mg/L
Water Systems Serving Prairie Du Chien
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| PRAIRIE DU CHIEN WATERWORKS | WI6120250 | Groundwater | 6,005 | 2 |
| BRIDGEPORT SAN DIST NO 1 | WI6120331 | Groundwater | 300 | 8 |
| HOMESTEADER LLC THE | WI6120109 | Groundwater | 200 | 4 |
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.