D24/100
LOMIRA WATERWORKS — Water Quality Report 2026
Serving 2,701 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI1140151
Violations
45
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)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
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 LOMIRA WATERWORKS
Is LOMIRA WATERWORKS water safe to drink?
LOMIRA WATERWORKS water receives a grade of D (24/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 45 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has LOMIRA WATERWORKS detected?
1 contaminants were tested in LOMIRA WATERWORKS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does LOMIRA WATERWORKS have any EPA violations?
Yes, LOMIRA WATERWORKS has 45 EPA violation(s) on record, with the most recent in 2025. Violation types include RPT, Other, MON. 7 are health-based violations.
How many people does LOMIRA WATERWORKS serve?
LOMIRA WATERWORKS serves approximately 2,701 people, Wisconsin. The system provides water to 1 community: Lomira.
What type of water does LOMIRA WATERWORKS provide?
LOMIRA WATERWORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI1140151.
How does LOMIRA WATERWORKS compare to other utilities in Wisconsin?
LOMIRA WATERWORKS scores 24/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Wisconsin state page for a full comparison of water systems.