A91/100
WHITEFISH BAY WATERWORKS — Water Quality Report 2026
Serving 14,272 people · Wisconsin
Water Source
Purchased Surface Water
County
—
System ID
WI2410597
Violations
6
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
No violations in the past 5 years
Full EPA compliance since 2002.
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 WHITEFISH BAY WATERWORKS
Is WHITEFISH BAY WATERWORKS water safe to drink?
WHITEFISH BAY WATERWORKS water receives a grade of A (91/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has WHITEFISH BAY WATERWORKS detected?
69 contaminants were tested in WHITEFISH BAY WATERWORKS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does WHITEFISH BAY WATERWORKS have any EPA violations?
Yes, WHITEFISH BAY WATERWORKS has 6 EPA violation(s) on record, with the most recent in 2002. Violation types include Other, MR.
How many people does WHITEFISH BAY WATERWORKS serve?
WHITEFISH BAY WATERWORKS serves approximately 14,272 people, Wisconsin. The system provides water to 1 community: Whitefish Bay.
What type of water does WHITEFISH BAY WATERWORKS provide?
WHITEFISH BAY 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 WI2410597.
How does WHITEFISH BAY WATERWORKS compare to other utilities in Wisconsin?
WHITEFISH BAY WATERWORKS scores 91/100 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.