A96/100
MARION WATERWORKS — Water Quality Report 2026
Serving 1,293 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI4690396
Violations
1
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 2019.
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 MARION WATERWORKS
Is MARION WATERWORKS water safe to drink?
MARION WATERWORKS water receives a grade of A (96/100), which is considered excellent. 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 MARION WATERWORKS detected?
1 contaminants were tested in MARION WATERWORKS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does MARION WATERWORKS have any EPA violations?
Yes, MARION WATERWORKS has 1 EPA violation(s) on record, with the most recent in 2019. Violation types include MON.
How many people does MARION WATERWORKS serve?
MARION WATERWORKS serves approximately 1,293 people, Wisconsin. The system provides water to 1 community: Marion.
What type of water does MARION WATERWORKS provide?
MARION WATERWORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI4690396.
How does MARION WATERWORKS compare to other utilities in Wisconsin?
MARION WATERWORKS scores 96/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Wisconsin state page for a full comparison of water systems.