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Water system · PWSID MT0000515

MALMSTROM AIR FORCE BASE

MALMSTROM AIR FORCE BASE, MT · ~8,850 people served

Check your exact address → MALMSTROM AIR FORCE BASE overview
100
Excellent
PurityRadar safety score

PWSID

MT0000515

State

Montana

City

MALMSTROM AIR FORCE BASE

Population served

8,850

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 2023). Levels in parts per trillion (ppt).

Lithium

48,000 ppt

limit —

No federal limit

PFBA

7 ppt

limit —

No federal limit

Violations & enforcement

26

Violations on record

0

Unaddressed

7

Health-based

50

Enforcement actions

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

Monitoring · Lead & Copper Rule began Nov 2024 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Apr 2024 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2024 Resolved
Other · EPA contaminant 7000 began Jul 2023 Resolved
Monitoring & reporting · Lead & Copper Rule began Dec 2021 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2020 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2020 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2019 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2018 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2017 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2017 Resolved
Other · EPA contaminant 7000 began Jul 2010 Resolved

Recent enforcement actions

  • State action · SIE Dec 2024
  • State action · SOX Dec 2024
  • State action · SIA Dec 2024
  • State action · SOX Jul 2024
  • State action · SIE Jul 2024
  • State action · SIA Jul 2024
  • State action · SOX Jul 2023
  • State action · SIA Jul 2023

This profile is built from EPA public records for system MT0000515 — 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.