HILL COUNTY WATER DISTRICTS

HINGHAM, MT · ~1,720 people served

Check your exact address → HINGHAM overview

100

Excellent

PurityRadar safety score

PWSID

MT0000249

State

Montana

City

HINGHAM

Population served

1,720

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

132

Violations on record

Unaddressed

Health-based

133

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Apr 2015. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Feb 2015 Resolved

Monitoring & reporting · EPA contaminant 0200 began May 2008 Resolved

Monitoring & reporting · EPA contaminant 0200 began Dec 2007 Resolved

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2007 Resolved

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2007 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2007 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2007 Resolved

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2007 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2007 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2007 Resolved

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2006 Resolved

Max contaminant level (MCL) · Total coliform health-based began Aug 2006 Resolved

Recent enforcement actions

State action · SF% Apr 2015
State action · SOX Mar 2015
State action · SIF Feb 2015
State action · SIA Feb 2015
State action · SIE Feb 2015
State action · SIA Feb 2015
State action · SOX Aug 2009
State action · SOX Aug 2009

This profile is built from EPA public records for system MT0000249 — 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.