B65/100
DARLINGTON WATERWORKS — Water Quality Report 2026
Serving 2,235 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI1330073
Violations
12
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
2
Violations (last 5yr)
2
Unresolved
1
Health-Related
TIER 2Unresolved
Treatment technique violation
TIER 3Unresolved
Disinfection byproduct treatment technique failure
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 DARLINGTON WATERWORKS
Is DARLINGTON WATERWORKS water safe to drink?
DARLINGTON WATERWORKS water receives a grade of B (65/100), which is considered good. 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 DARLINGTON WATERWORKS detected?
1 contaminants were tested in DARLINGTON WATERWORKS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does DARLINGTON WATERWORKS have any EPA violations?
Yes, DARLINGTON WATERWORKS has 12 EPA violation(s) on record, with the most recent in 2024. Violation types include TT, Other, MCL. 5 are health-based violations.
How many people does DARLINGTON WATERWORKS serve?
DARLINGTON WATERWORKS serves approximately 2,235 people, Wisconsin. The system provides water to 1 community: Darlington.
What type of water does DARLINGTON WATERWORKS provide?
DARLINGTON WATERWORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI1330073.
How does DARLINGTON WATERWORKS compare to other utilities in Wisconsin?
DARLINGTON WATERWORKS scores 65/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Wisconsin state page for a full comparison of water systems.