F13/100
BERLIN WATERWORKS — Water Quality Report 2026
Serving 5,524 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI4240216
Violations
32
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | < 0.001 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 BERLIN WATERWORKS
Is BERLIN WATERWORKS water safe to drink?
BERLIN WATERWORKS water receives a grade of F (13/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 32 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has BERLIN WATERWORKS detected?
31 contaminants were tested in BERLIN WATERWORKS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does BERLIN WATERWORKS have any EPA violations?
Yes, BERLIN WATERWORKS has 32 EPA violation(s) on record, with the most recent in 2010. Violation types include Other, MCL, MR. 13 are health-based violations.
How many people does BERLIN WATERWORKS serve?
BERLIN WATERWORKS serves approximately 5,524 people, Wisconsin. The system provides water to 1 community: Berlin.
What type of water does BERLIN WATERWORKS provide?
BERLIN WATERWORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI4240216.
How does BERLIN WATERWORKS compare to other utilities in Wisconsin?
BERLIN 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.