BILLINGS HEIGHTS CO WATER DIST OF

BILLINGS, MT · ~12,000 people served

Check your exact address → BILLINGS overview

100

Excellent

PurityRadar safety score

PWSID

MT0000155

State

Montana

City

BILLINGS

Population served

12,000

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

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

Lithium

41,000 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2025. Official EPA record →

Other · EPA contaminant 7000 began Jul 2025 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2024 Resolved

Monitoring & reporting · Total coliform began Oct 2005 Resolved

Monitoring & reporting · Total coliform began Nov 1998 Resolved

Monitoring & reporting · Total coliform began Jul 1998 Resolved

Recent enforcement actions

State action · SOX Jul 2025
State action · SOX Jul 2025
State action · SIA Jul 2025
State action · SIE Nov 2024
State action · SIA Nov 2024
State action · SOX Dec 2008
State action · SIA Dec 2005
State action · SIE Dec 2005

This profile is built from EPA public records for system MT0000155 — 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.