NORTHVILLE

NORTHVILLE, MI · ~6,119 people served

Check your exact address → NORTHVILLE overview

100

Excellent

PurityRadar safety score

PWSID

MI0004830

State

Michigan

City

NORTHVILLE

Population served

6,119

Primary source

SWP

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 Dec 2025. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2025 Unaddressed

Reporting · EPA contaminant 5200 began Jul 2025 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Aug 2013 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Aug 2013 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2013 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2013 Resolved

Other · EPA contaminant 7000 began Jul 2000 Resolved

Recent enforcement actions

State action · SIE Dec 2025
State action · SIA Dec 2025
State action · SOX Jul 2025
State action · SOX Sep 2014
State action · SOX Sep 2014
State action · SIE Aug 2014
State action · SIA Aug 2014
State action · SIE Aug 2013

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

Copper

1 station · latest Nov 2022

0.777 · max 1.12 ug/L · 4

Lead

1 station · latest Nov 2022

0.31 · max 0.715 ug/L · 4

Manganese

1 station · latest Nov 2022

116 · max 125 ug/L · 4

Nitrate

1 station · latest Nov 2022

0.163 · max 0.4 mg/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 MI0004830 — 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.