C53/100
LODI WATERWORKS — Water Quality Report 2026
Serving 3,146 people · Wisconsin
Water Source
Groundwater
County
—
System ID
WI1110100
Violations
15
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.018 mg/L | 0.015 mg/L | Over Limit |
EPA Violation History
4
Violations (last 5yr)
2
Unresolved
3
Health-Related
TIER 2Unresolved
Other non-health-based violation
TIER 2Resolved
Treatment technique violation
When: October 17, 2024 – February 17, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved
Disinfection byproduct treatment technique failure
TIER 2Resolved
Other non-health-based violation
When: December 11, 2023 – October 9, 2024Rule: 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 LODI WATERWORKS
Is LODI WATERWORKS water safe to drink?
LODI WATERWORKS water receives a grade of C (53/100), which is considered fair. 1 contaminant(s) exceed EPA legal limits and 15 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has LODI WATERWORKS detected?
1 contaminants were tested in LODI WATERWORKS's water. Notable contaminants include Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does LODI WATERWORKS have any EPA violations?
Yes, LODI WATERWORKS has 15 EPA violation(s) on record, with the most recent in 2024. Violation types include TT, Other, MR. 6 are health-based violations.
How many people does LODI WATERWORKS serve?
LODI WATERWORKS serves approximately 3,146 people, Wisconsin. The system provides water to 1 community: Lodi.
What type of water does LODI WATERWORKS provide?
LODI WATERWORKS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is WI1110100.
How does LODI WATERWORKS compare to other utilities in Wisconsin?
LODI WATERWORKS scores 53/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Wisconsin state page for a full comparison of water systems.