CHELSEA

CHELSEA, MI · ~5,474 people served

Check your exact address → CHELSEA overview

100

Excellent

PurityRadar safety score

PWSID

MI0001370

State

Michigan

City

CHELSEA

Population served

5,474

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 2021. Official EPA record →

Other · EPA contaminant 7000 began Jul 2005 Resolved

Treatment technique · EPA contaminant 2265 health-based began Jun 2003 Resolved

Max contaminant level (MCL) · Total coliform health-based began Aug 1996 Resolved

Max contaminant level (MCL) · Total coliform health-based began Aug 1995 Resolved

Max contaminant level (MCL) · Total coliform health-based began Oct 1993 Resolved

Recent enforcement actions

State action · SOX Jan 2021
State action · SIA Oct 2020
State action · SIE Oct 2020
State action · SFM Sep 2005
State action · SIA Sep 2005
State action · SOX Jul 2005
State action · SIF Dec 2004
State action · SIE Sep 2004

This profile is built from EPA public records for system MI0001370 — 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.