A82/100
SUAMICO WATERWORKS — Water Quality Report 2026
Serving 4,697 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI4051031
Violations
11
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 2017.
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 SUAMICO WATERWORKS
Is SUAMICO WATERWORKS water safe to drink?
SUAMICO WATERWORKS water receives a grade of A (82/100), which is considered excellent. Out of 31 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has SUAMICO WATERWORKS detected?
31 contaminants were tested in SUAMICO WATERWORKS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does SUAMICO WATERWORKS have any EPA violations?
Yes, SUAMICO WATERWORKS has 11 EPA violation(s) on record, with the most recent in 2017. Violation types include MCL, MR, Other. 1 are health-based violations.
How many people does SUAMICO WATERWORKS serve?
SUAMICO WATERWORKS serves approximately 4,697 people, Wisconsin. The system provides water to 1 community: Suamico.
What type of water does SUAMICO WATERWORKS provide?
SUAMICO WATERWORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI4051031.
How does SUAMICO WATERWORKS compare to other utilities in Wisconsin?
SUAMICO WATERWORKS scores 82/100 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.