Water Quality: Wisconsin Dells, WI
5 water systems • 3,507 people served
Multiple Health ViolationsWater Quality Summary
Wisconsin Dells is served by 5 public water systems with a combined service population of 3,507 people, and has 113 EPA Safe Drinking Water Act violations on record. Critically, 90 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Wisconsin Dells's violation count is 245% above the national average for Wisconsin. Contaminants associated with violations include Chlorine Dioxide, Contaminant 4030, HAA5, Total Organic Carbon, Turbidity.
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
Haloacetic acids are associated with increased cancer risk and potential reproductive and developmental effects.
Common source: Reaction of chlorine disinfectants with organic matter in treated water
EPA limit: 0.060 mg/L (60 ppb)
Not a direct health risk but reacts with disinfectants to form carcinogenic byproducts such as trihalomethanes.
Common source: Decaying plant material, algae, soil organic matter in source water
EPA limit: Treatment technique (must reduce TOC based on source water level)
High turbidity can interfere with disinfection effectiveness and indicates potential presence of pathogens.
Common source: Soil runoff, algae, decaying organic matter, treatment process issues
EPA limit: 1 NTU (never exceed 5 NTU; 95% of samples must be ≤0.3 NTU for filtered systems)
Water Systems Serving Wisconsin Dells
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| WISCONSIN DELLS WATERWORKS | WI1110113 | Groundwater | 3,232 | 9 |
| DELLS CLUB CONDO ASSOC 1 | WI7010423 | Groundwater | 75 | 1 |
| DELLS CLUB CONDO ASSOC 2 | WI7010424 | Groundwater | 75 | 1 |
| DELLS CLUB CONDO ASSOC 3 | WI7010425 | Groundwater | 75 | 93 |
| DELL CREEK ESTATES | WI1571232 | Groundwater | 50 | 9 |
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.