Willmar

Willmar, MN · ~21,045 people served

Check your exact address → Willmar overview

100

Excellent

PurityRadar safety score

PWSID

MN1340016

State

Minnesota

City

Willmar

Population served

21,045

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through Nov 2024). Levels in parts per trillion (ppt).

Lithium

16,300 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2025. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Jan 2025 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2020 Resolved

Recent enforcement actions

State action · SOX Dec 2025
State action · SFJ Oct 2025
State action · SOX Aug 2021
State action · SFJ Feb 2021
State action · SIE Feb 2021
State action · SIA Sep 1988
State action · SIA Sep 1987
State action · SOX Sep 1986

This profile is built from EPA public records for system MN1340016 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.