Dayton

Dayton, MN · ~4,930 people served

Check your exact address → Dayton overview

100

Excellent

PurityRadar safety score

PWSID

MN1270073

State

Minnesota

City

Dayton

Population served

4,930

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

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2026. Official EPA record →

Monitoring · Lead & Copper Rule began Dec 2025 Resolved

Monitoring & reporting · Total coliform began Jul 2014 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jul 2014 Resolved

Recent enforcement actions

State action · SOX Jan 2026
State action · SFJ Jan 2026
State action · SIE Jan 2026
State action · SFJ Oct 2014
State action · SIE Oct 2014
State action · SOX Oct 2014

This profile is built from EPA public records for system MN1270073 — 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.