C45/100
PRAIRIE DU CHIEN WATERWORKS — Water Quality Report 2026
Serving 6,005 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI6120250
Violations
27
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOS | 0.011 µg/L | 0.004 µg/L | Over Limit |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2013.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About PRAIRIE DU CHIEN WATERWORKS
Is PRAIRIE DU CHIEN WATERWORKS water safe to drink?
PRAIRIE DU CHIEN WATERWORKS water receives a grade of C (45/100), which is considered fair. 1 contaminant(s) exceed EPA legal limits and 27 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has PRAIRIE DU CHIEN WATERWORKS detected?
31 contaminants were tested in PRAIRIE DU CHIEN WATERWORKS's water. Notable contaminants include PFOS. 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does PRAIRIE DU CHIEN WATERWORKS have any EPA violations?
Yes, PRAIRIE DU CHIEN WATERWORKS has 27 EPA violation(s) on record, with the most recent in 2013. Violation types include TT, Other, MR. 5 are health-based violations.
How many people does PRAIRIE DU CHIEN WATERWORKS serve?
PRAIRIE DU CHIEN WATERWORKS serves approximately 6,005 people, Wisconsin. The system provides water to 1 community: Prairie Du Chien.
What type of water does PRAIRIE DU CHIEN WATERWORKS provide?
PRAIRIE DU CHIEN WATERWORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI6120250.
How does PRAIRIE DU CHIEN WATERWORKS compare to other utilities in Wisconsin?
PRAIRIE DU CHIEN WATERWORKS scores 45/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Wisconsin state page for a full comparison of water systems.