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Water system · PWSID MT0004348

DRY PRAIRIE RURAL WATER AUTHORITY

CULBERTSON, MT · ~3,005 people served

Check your exact address → CULBERTSON overview
100
Excellent
PurityRadar safety score

PWSID

MT0004348

State

Montana

City

CULBERTSON

Population served

3,005

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

9

Violations on record

1

Unaddressed

5

Health-based

28

Enforcement actions

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

Monitoring & reporting · Lead & Copper Rule began Oct 2024 Unaddressed
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2024 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2024 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2015 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2015 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2015 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2015 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2014 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2005 Resolved

Recent enforcement actions

  • State action · SIE Jan 2025
  • State action · SOX Jan 2025
  • State action · SIA Jan 2025
  • State action · SIE Nov 2024
  • State action · SIA Nov 2024
  • State action · SO+ Nov 2015
  • State action · SOX Aug 2015
  • State action · SOX Aug 2015

This profile is built from EPA public records for system MT0004348 — 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.