MONROE

MONROE, MI · ~49,467 people served

Check your exact address → MONROE overview

100

Excellent

PurityRadar safety score

PWSID

MI0004450

State

Michigan

City

MONROE

Population served

49,467

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 Jul 2017. Official EPA record →

Max contaminant level (MCL) · Lead & Copper Rule health-based began Jun 2017 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jun 2011 Resolved

Max contaminant level (MCL) · Total coliform health-based began May 2011 Resolved

Max contaminant level (MCL) · Total coliform health-based began Oct 1991 Resolved

Recent enforcement actions

State action · SIA Jul 2017
State action · SOX Jul 2017
State action · SIE Jun 2017
State action · SFH Jun 2017
State action · SIF Jun 2017
State action · SOX Jul 2011
State action · SIF Jul 2011
State action · SIE Jul 2011

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 Jul 2023

2.36 · max 6.42 mg/l as N · 46

Copper

1 station · latest Nov 2022

1.13 · max 2.92 ug/L · 4

Lead

1 station · latest Nov 2022

0.373 · max 1.42 ug/L · 4

Manganese

1 station · latest Nov 2022

115 · max 433 ug/L · 4

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 MI0004450 — 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.