F0/100
CLINTONVILLE UTILITIES — Water Quality Report 2026
Serving 4,635 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI4690391
Violations
67
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.004 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
1
Health-Related
TIER 2Resolved
Treatment technique violation
When: October 17, 2024 – May 27, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Disinfection byproduct treatment technique failure
When: October 17, 2024 – March 28, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
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 CLINTONVILLE UTILITIES
Is CLINTONVILLE UTILITIES water safe to drink?
CLINTONVILLE UTILITIES water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 67 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has CLINTONVILLE UTILITIES detected?
31 contaminants were tested in CLINTONVILLE UTILITIES's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CLINTONVILLE UTILITIES have any EPA violations?
Yes, CLINTONVILLE UTILITIES has 67 EPA violation(s) on record, with the most recent in 2024. Violation types include TT, Other, MR. 12 are health-based violations.
How many people does CLINTONVILLE UTILITIES serve?
CLINTONVILLE UTILITIES serves approximately 4,635 people, Wisconsin. The system provides water to 1 community: Clintonville.
What type of water does CLINTONVILLE UTILITIES provide?
CLINTONVILLE UTILITIES sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI4690391.
How does CLINTONVILLE UTILITIES compare to other utilities in Wisconsin?
CLINTONVILLE UTILITIES scores 0/100 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.