C47/100
MT HOREB WATERWORKS — Water Quality Report 2026
Serving 7,756 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI1130247
Violations
46
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2011.
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 MT HOREB WATERWORKS
Is MT HOREB WATERWORKS water safe to drink?
MT HOREB WATERWORKS water receives a grade of C (47/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 46 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has MT HOREB WATERWORKS detected?
51 contaminants were tested in MT HOREB WATERWORKS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does MT HOREB WATERWORKS have any EPA violations?
Yes, MT HOREB WATERWORKS has 46 EPA violation(s) on record, with the most recent in 2011. Violation types include Other, TT, MR. 1 are health-based violations.
How many people does MT HOREB WATERWORKS serve?
MT HOREB WATERWORKS serves approximately 7,756 people, Wisconsin. The system provides water to 1 community: Mount Horeb.
What type of water does MT HOREB WATERWORKS provide?
MT HOREB WATERWORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI1130247.
How does MT HOREB WATERWORKS compare to other utilities in Wisconsin?
MT HOREB WATERWORKS scores 47/100 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.