B71/100
SOUTH MILWAUKEE WATERWORKS — Water Quality Report 2026
Serving 21,340 people · Wisconsin
Water Source
Surface Water
County
—
System ID
WI2410144
Violations
26
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.008 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: June 1, 2023 – June 30, 2023Rule: Total Coliform 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 SOUTH MILWAUKEE WATERWORKS
Is SOUTH MILWAUKEE WATERWORKS water safe to drink?
SOUTH MILWAUKEE WATERWORKS water receives a grade of B (71/100), which is considered good. 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 SOUTH MILWAUKEE WATERWORKS detected?
69 contaminants were tested in SOUTH MILWAUKEE WATERWORKS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does SOUTH MILWAUKEE WATERWORKS have any EPA violations?
Yes, SOUTH MILWAUKEE WATERWORKS has 26 EPA violation(s) on record, with the most recent in 2023. Violation types include MON, Other, MR.
How many people does SOUTH MILWAUKEE WATERWORKS serve?
SOUTH MILWAUKEE WATERWORKS serves approximately 21,340 people, Wisconsin. The system provides water to 1 community: South Milwaukee.
What type of water does SOUTH MILWAUKEE WATERWORKS provide?
SOUTH MILWAUKEE WATERWORKS sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is WI2410144.
How does SOUTH MILWAUKEE WATERWORKS compare to other utilities in Wisconsin?
SOUTH MILWAUKEE WATERWORKS scores 71/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Wisconsin state page for a full comparison of water systems.