A90/100
WINDSOR WATER UTILITY SOUTH — Water Quality Report 2026
Serving 4,607 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI1130267
Violations
3
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.005 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 1994.
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 WINDSOR WATER UTILITY SOUTH
Is WINDSOR WATER UTILITY SOUTH water safe to drink?
WINDSOR WATER UTILITY SOUTH water receives a grade of A (90/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has WINDSOR WATER UTILITY SOUTH detected?
1 contaminants were tested in WINDSOR WATER UTILITY SOUTH's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does WINDSOR WATER UTILITY SOUTH have any EPA violations?
Yes, WINDSOR WATER UTILITY SOUTH has 3 EPA violation(s) on record, with the most recent in 1994. Violation types include MCL, MR. 1 are health-based violations.
How many people does WINDSOR WATER UTILITY SOUTH serve?
WINDSOR WATER UTILITY SOUTH serves approximately 4,607 people, Wisconsin. The system provides water to 1 community: Windsor.
What type of water does WINDSOR WATER UTILITY SOUTH provide?
WINDSOR WATER UTILITY SOUTH sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI1130267.
How does WINDSOR WATER UTILITY SOUTH compare to other utilities in Wisconsin?
WINDSOR WATER UTILITY SOUTH scores 90/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Wisconsin state page for a full comparison of water systems.