HOUGHTON

HOUGHTON, MI · ~8,386 people served

Check your exact address → HOUGHTON overview

100

Excellent

PurityRadar safety score

PWSID

MI0003230

State

Michigan

City

HOUGHTON

Population served

8,386

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

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 Sep 2023. Official EPA record →

Monitoring · Lead & Copper Rule began Feb 2023 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2022 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2022 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 2020 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2017 Resolved

Max contaminant level (MCL) · Total coliform health-based began Sep 1996 Resolved

Recent enforcement actions

State action · SOX Sep 2023
State action · SIF May 2023
State action · SOX Mar 2023
State action · SIA Mar 2023
State action · SIE Mar 2023
State action · SIA Dec 2022
State action · SIE Dec 2022
State action · SIA Oct 2020

This profile is built from EPA public records for system MI0003230 — 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.