F0/100
GERMANTOWN WATER UTILITY — Water Quality Report 2026
Serving 20,027 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI2670105
Violations
110
Contaminant Test Results
4 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
strontium | 51952.70 µg/L | — | Above Goal |
manganese | 406.04 µg/L | — | Above Goal |
chlorate | 360.44 µg/L | — | Above Goal |
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
1
Unresolved
1
Health-Related
TIER 2Resolved
Treatment technique violation
When: October 17, 2024 – September 2, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved
Disinfection byproduct treatment technique failure
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 GERMANTOWN WATER UTILITY
Is GERMANTOWN WATER UTILITY water safe to drink?
GERMANTOWN WATER UTILITY water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 110 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has GERMANTOWN WATER UTILITY detected?
66 contaminants were tested in GERMANTOWN WATER UTILITY's water. Notable contaminants include Lead (90th percentile), strontium, manganese, chlorate. No contaminants exceed EPA legal limits. 4 exceed EPA health goals (MCLGs).
Does GERMANTOWN WATER UTILITY have any EPA violations?
Yes, GERMANTOWN WATER UTILITY has 110 EPA violation(s) on record, with the most recent in 2024. Violation types include TT, Other, MR. 7 are health-based violations.
How many people does GERMANTOWN WATER UTILITY serve?
GERMANTOWN WATER UTILITY serves approximately 20,027 people, Wisconsin. The system provides water to 1 community: Germantown.
What type of water does GERMANTOWN WATER UTILITY provide?
GERMANTOWN WATER UTILITY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI2670105.
How does GERMANTOWN WATER UTILITY compare to other utilities in Wisconsin?
GERMANTOWN WATER UTILITY 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.