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Liberty, WI Tap Water Quality 2026

Water quality report for Liberty, WI — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Liberty's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: New London Waterworks PWSID: WI4690398 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 13.00 ppb, 87% of the action level and no violations are open. No PFAS was detected.

A

Liberty earns an A for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 13.00 ppb — 87% of the federal action level
PFAS tested, none detected
No violations since 2015
No violations currently open
Liberty's lead level vs. all Wisconsin community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 13.00 ppb — 87% of the federal action level
✓ Lower lead than 3% of Wisconsin utilities
Population Served
208
~2735 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
None on record since 2015

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
87% of EPA action level
13.00 ppb
Action level: 15 ppb
The 90th-percentile lead result is 13.00 ppb, 87% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

✓ No violations on record for this water system.
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

No violations are on record for this system since 2015. EPA records violations for every community water system, so this reflects a clean compliance history rather than missing data.

About the Main Water System

Utility New London Waterworks
PWSID WI4690398
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 208
Service connections 2,735
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Liberty tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 13.00 ppb, 87% of the action level.
Does Liberty water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Liberty? ▼
New London Waterworks (PWSID WI4690398). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2024-07-29. No significant deficiencies were recorded.

What Should Liberty Residents Do?

1
Consider a filter certified for lead
Look for NSF/ANSI 53 certification for lead reduction.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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