UNION TOWNSHIP

MT PLEASANT, MI · ~12,927 people served

Check your exact address → MT PLEASANT overview

100

Excellent

PurityRadar safety score

PWSID

MI0006725

State

Michigan

City

MT PLEASANT

Population served

12,927

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 Dec 2023). Levels in parts per trillion (ppt).

Lithium

9,430 ppt

limit —

No federal limit

PFBS

4.8 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2020. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Dec 2018 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Sep 2018 Resolved

Monitoring & reporting · Gross alpha began Jul 2004 Resolved

Monitoring & reporting · Gross alpha began Apr 2004 Resolved

Monitoring & reporting · Total coliform began Feb 2004 Resolved

Recent enforcement actions

State action · SOX Aug 2020
State action · SIF Jun 2020
State action · SIE Jan 2020
State action · SIA Jan 2020
State action · SOX Jan 2019
State action · SIA Jan 2019
State action · SIF Jan 2005
State action · SOX Oct 2004

This profile is built from EPA public records for system MI0006725 — 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.