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Water system · PWSID MT0000321

ROUNDUP WATER DEPARTMENT

ROUNDUP, MT · ~1,900 people served

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

PWSID

MT0000321

State

Montana

City

ROUNDUP

Population served

1,900

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

12

Violations on record

0

Unaddressed

0

Health-based

34

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2024. Official EPA record →

Monitoring & reporting · Thallium began Jan 2023 Resolved
Monitoring · Lead & Copper Rule began Jul 2020 Resolved
Monitoring · Lead & Copper Rule began Jun 2019 Resolved
Other · EPA contaminant 7000 began Jul 2018 Resolved
Monitoring · Lead & Copper Rule began Jul 2018 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Sep 2014 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Sep 2014 Resolved
Other · EPA contaminant 7000 began Oct 2013 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2010 Resolved
Other · EPA contaminant 7000 began Jul 2008 Resolved
Monitoring & reporting · Total coliform began Sep 1995 Resolved
Monitoring & reporting · Total coliform began Aug 1994 Resolved

Recent enforcement actions

  • State action · SIF May 2024
  • State action · SOX Feb 2024
  • State action · SIE Jan 2024
  • State action · SIA Jan 2024
  • State action · SIE Aug 2020
  • State action · SIA Aug 2020
  • State action · SOX Aug 2020
  • State action · SIF Aug 2019

This profile is built from EPA public records for system MT0000321 — 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.