No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting January 2019.
Serves about 8,850 people (2 connections) with surface water bought from City of Great Falls.
From EPA's record for MT0000515. PurityMap is independent of Malmstrom Air Force Base.
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2 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Jan–Mar 2019 | Haloacetic acids (HAA5) | 61.3 µg/L | 0.060 mg/L | Resolved |
| Oct–Dec 2018 | Haloacetic acids (HAA5) | 61 µg/L | 0.060 mg/L | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from February 2023 to November 2023.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 68 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Above the referenced health-based guidance value | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| Perfluorobutanoic acid (PFBA) | 7 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-14 to 2023-11-16 | UCMR5 Analytical Results: MALMSTROM AIR FORCE BASE (MT0000515) |
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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Screening: quick check, not lab-grade
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
Turnaround: 5 minutes
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
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Follow this water →Malmstrom Air Force Base's phone number on EPA record is 406-731-1580. Its mailing address is 7300 NORTH PERIMETER ROAD, MALMSTROM AIR FORCE BASE, MT 59402.
According to EPA's record, Malmstrom Air Force Base uses surface water bought from City of Great Falls.
EPA's record shows 2 health-based violations for Malmstrom Air Force Base in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. The latest legal-limit breach on record was in the period starting January 2019. EPA also lists 9 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in Malmstrom Air Force Base's latest lead and copper round, which ended in December 2024. The federal action level is 15 µg/L.
PurityMap has no verified website for Malmstrom Air Force Base. Its phone number on EPA record is 406-731-1580. Its mailing address on EPA record is 7300 NORTH PERIMETER ROAD, MALMSTROM AIR FORCE BASE, MT 59402. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.