Winona

Winona, MN · ~27,782 people served

Check your exact address → Winona overview

100

Excellent

PurityRadar safety score

PWSID

MN1850013

State

Minnesota

City

Winona

Population served

27,782

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 Jul 2024). Levels in parts per trillion (ppt).

Lithium

21,400 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Apr 2022. Official EPA record →

Max contaminant level (MCL) · Uranium health-based began Jul 2021 Resolved

Max contaminant level (MCL) · Uranium health-based began Apr 2021 Resolved

Max contaminant level (MCL) · Uranium health-based began Jan 2021 Resolved

Max contaminant level (MCL) · Uranium health-based began Oct 2020 Resolved

Max contaminant level (MCL) · Uranium health-based began Jul 2020 Resolved

Max contaminant level (MCL) · Uranium health-based began Jan 2020 Resolved

Max contaminant level (MCL) · Uranium health-based began Apr 2017 Resolved

Max contaminant level (MCL) · Uranium health-based began Jan 2017 Resolved

Recent enforcement actions

State action · SOX Apr 2022
State action · SOX Apr 2022
State action · SOX Apr 2022
State action · SOX Apr 2022
State action · SOX Apr 2022
State action · SOX Apr 2022
State action · SIF Jan 2022
State action · SIE Nov 2021

This profile is built from EPA public records for system MN1850013 — 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.