F13/100
KEWASKUM WATERWORKS — Water Quality Report 2026
Serving 4,309 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI2670112
Violations
79
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOA | 0.015 µg/L | 0.004 µg/L | Over Limit |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2005.
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 KEWASKUM WATERWORKS
Is KEWASKUM WATERWORKS water safe to drink?
KEWASKUM WATERWORKS water receives a grade of F (13/100), which is considered failing. 1 contaminant(s) exceed EPA legal limits and 79 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has KEWASKUM WATERWORKS detected?
31 contaminants were tested in KEWASKUM WATERWORKS's water. Notable contaminants include PFOA. 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does KEWASKUM WATERWORKS have any EPA violations?
Yes, KEWASKUM WATERWORKS has 79 EPA violation(s) on record, with the most recent in 2005. Violation types include Other, MR.
How many people does KEWASKUM WATERWORKS serve?
KEWASKUM WATERWORKS serves approximately 4,309 people, Wisconsin. The system provides water to 1 community: Kewaskum.
What type of water does KEWASKUM WATERWORKS provide?
KEWASKUM WATERWORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI2670112.
How does KEWASKUM WATERWORKS compare to other utilities in Wisconsin?
KEWASKUM WATERWORKS scores 13/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Wisconsin state page for a full comparison of water systems.