F8/100
ALLOUEZ WATERWORKS — Water Quality Report 2026
Serving 14,156 people · Wisconsin
Water Source
Purchased Surface Water
County
—
System ID
WI4050455
Violations
21
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.006 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 – December 13, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Disinfection byproduct treatment technique failure
When: October 17, 2024 – June 30, 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 ALLOUEZ WATERWORKS
Is ALLOUEZ WATERWORKS water safe to drink?
ALLOUEZ WATERWORKS water receives a grade of F (8/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 21 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has ALLOUEZ WATERWORKS detected?
69 contaminants were tested in ALLOUEZ WATERWORKS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does ALLOUEZ WATERWORKS have any EPA violations?
Yes, ALLOUEZ WATERWORKS has 21 EPA violation(s) on record, with the most recent in 2024. Violation types include TT, Other, MR. 17 are health-based violations.
How many people does ALLOUEZ WATERWORKS serve?
ALLOUEZ WATERWORKS serves approximately 14,156 people, Wisconsin. The system provides water to 1 community: Green Bay.
What type of water does ALLOUEZ WATERWORKS provide?
ALLOUEZ WATERWORKS sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is WI4050455.
How does ALLOUEZ WATERWORKS compare to other utilities in Wisconsin?
ALLOUEZ WATERWORKS scores 8/100 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.