MOUNT PLEASANT

MT PLEASANT, MI · ~21,688 people served

Check your exact address → MT PLEASANT overview

100

Excellent

PurityRadar safety score

PWSID

MI0004530

State

Michigan

City

MT PLEASANT

Population served

21,688

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

Latest detections from EPA’s UCMR5 monitoring (through Sep 2025). Levels in parts per trillion (ppt).

Lithium

11,000 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2024. Official EPA record →

Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2023 Resolved

Treatment technique · EPA contaminant 0300 health-based began Sep 2022 Resolved

Monitoring & reporting · EPA contaminant 0300 began Jul 2017 Resolved

Monitoring & reporting · EPA contaminant 3014 began Oct 2016 Resolved

Recent enforcement actions

State action · SIF Jun 2024
State action · SOX Feb 2024
State action · SIA Feb 2024
State action · SIE Feb 2024
State action · SIA Sep 2022
State action · SIE Sep 2022
State action · SIF Sep 2022
State action · SOX Sep 2022

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

1 station · latest Sep 2023

0.409 · max 0.409 mg/L · 1

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system MI0004530 — 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.