D36/100
HARTFORD WATERWORKS — Water Quality Report 2026
Serving 15,805 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI2670110
Violations
53
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 2005.
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 HARTFORD WATERWORKS
Is HARTFORD WATERWORKS water safe to drink?
HARTFORD WATERWORKS water receives a grade of D (36/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 53 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has HARTFORD WATERWORKS detected?
66 contaminants were tested in HARTFORD WATERWORKS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does HARTFORD WATERWORKS have any EPA violations?
Yes, HARTFORD WATERWORKS has 53 EPA violation(s) on record, with the most recent in 2005. Violation types include MCL, Other, MR. 2 are health-based violations.
How many people does HARTFORD WATERWORKS serve?
HARTFORD WATERWORKS serves approximately 15,805 people, Wisconsin. The system provides water to 1 community: Hartford.
What type of water does HARTFORD WATERWORKS provide?
HARTFORD WATERWORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI2670110.
How does HARTFORD WATERWORKS compare to other utilities in Wisconsin?
HARTFORD WATERWORKS scores 36/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Wisconsin state page for a full comparison of water systems.