MACKINAC ISLAND

MACKINAC ISLAND, MI · ~583 people served

Check your exact address → MACKINAC ISLAND overview

100

Excellent

PurityRadar safety score

PWSID

MI0003970

State

Michigan

City

MACKINAC ISLAND

Population served

583

Primary source

Surface water

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 Nov 2023. Official EPA record →

Other · EPA contaminant 7000 began Jul 2023 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2020 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2020 Resolved

Other · EPA contaminant 7000 began Jul 2018 Resolved

Other · EPA contaminant 7000 began Jul 2001 Resolved

Monitoring & reporting · Nitrate began Jan 1994 Resolved

Monitoring & reporting · Total coliform began Apr 1991 Resolved

Recent enforcement actions

State action · SOX Nov 2023
State action · SIA Nov 2023
State action · SOX Sep 2022
State action · SIE Nov 2021
State action · SIA Nov 2021
State action · SOX Oct 2018
State action · SIA Sep 2018
State action · SOX Dec 2001

This profile is built from EPA public records for system MI0003970 — 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.