F15/100
CEDARBURG L & W COMMISSION — Water Quality Report 2026
Serving 11,800 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI2460108
Violations
67
Contaminant Test Results
3 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.80 mg/L | 1.30 mg/L | Over Limit |
strontium | 2120.40 µg/L | — | Above Goal |
Lead (90th percentile) | 0.008 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2010.
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 CEDARBURG L & W COMMISSION
Is CEDARBURG L & W COMMISSION water safe to drink?
CEDARBURG L & W COMMISSION water receives a grade of F (15/100), which is considered failing. 1 contaminant(s) exceed EPA legal limits and 67 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has CEDARBURG L & W COMMISSION detected?
67 contaminants were tested in CEDARBURG L & W COMMISSION's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile), strontium. 1 exceed EPA legal limits (MCLs). 3 exceed EPA health goals (MCLGs).
Does CEDARBURG L & W COMMISSION have any EPA violations?
Yes, CEDARBURG L & W COMMISSION has 67 EPA violation(s) on record, with the most recent in 2010. Violation types include MCL, MR, Other. 1 are health-based violations.
How many people does CEDARBURG L & W COMMISSION serve?
CEDARBURG L & W COMMISSION serves approximately 11,800 people, Wisconsin. The system provides water to 1 community: Cedarburg.
What type of water does CEDARBURG L & W COMMISSION provide?
CEDARBURG L & W COMMISSION sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI2460108.
How does CEDARBURG L & W COMMISSION compare to other utilities in Wisconsin?
CEDARBURG L & W COMMISSION scores 15/100 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.