MALMSTROM AIR FORCE BASE
Montana — Community Water System — PWSID: MT0000515
System Information
| PWSID | MT0000515 |
| System Name | MALMSTROM AIR FORCE BASE |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Federal |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 13, 1979 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Montana |
| City | MALMSTROM AIR FORCE BASE |
| ZIP Code | 59402 |
| Address | 7300 NORTH PERIMETER ROAD |
| Organization | 341ST MEDICAL GROUP OMRS SGXB |
| Phone | 406-731-1580 |
Population & Service
| Population Served | 8,850 |
| Service Connections | 2 |
Drinking Water Violations (82)
This water system has 82 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Nov 1, 2024 | Nov 30, 2024 | MON | No | No | — | — | — | Resolved | Nov 30, 2024 | — | |
| Nov 1, 2024 | Nov 30, 2024 | MON | No | No | — | — | — | Resolved | Nov 30, 2024 | — | |
| Nov 1, 2024 | Nov 30, 2024 | MON | No | No | — | — | — | Resolved | Nov 30, 2024 | — | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2024 | — | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2024 | — | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2024 | — | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2024 | — | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2024 | — | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2024 | — | |
| Jul 1, 2023 | — | Other | No | No | — | — | — | Resolved | Jul 26, 2023 | — | |
| Jul 1, 2023 | — | Other | No | No | — | — | — | Resolved | Jul 26, 2023 | — | |
| Dec 30, 2021 | — | MR | No | No | — | TT | — | Resolved | Jan 5, 2022 | — | |
| Dec 30, 2021 | — | MR | No | No | — | TT | — | Resolved | Jan 5, 2022 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MCL | Yes | No | 61.3 UG/L | 0.060 mg/L | 60 | Resolved | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MCL | Yes | No | 61.3 UG/L | 0.060 mg/L | 60 | Resolved | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MCL | Yes | No | 61.3 UG/L | 0.060 mg/L | 60 | Resolved | Mar 31, 2019 | — | |
| Oct 1, 2018 | Dec 31, 2018 | MCL | Yes | No | 61 UG/L | 0.060 mg/L | 60 | Resolved | Dec 31, 2018 | — | |
| Oct 1, 2018 | Dec 31, 2018 | MCL | Yes | No | 61 UG/L | 0.060 mg/L | 60 | Resolved | Dec 31, 2018 | — | |
| Oct 1, 2018 | Dec 31, 2018 | MCL | Yes | No | 61 UG/L | 0.060 mg/L | 60 | Resolved | Dec 31, 2018 | — | |
| Jul 1, 2017 | Sep 30, 2017 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 30, 2017 | — | |
| Jul 1, 2017 | Sep 30, 2017 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 30, 2017 | — | |
| Jul 1, 2017 | Sep 30, 2017 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 30, 2017 | — | |
| Jul 1, 2017 | Sep 30, 2017 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2017 | — | |
| Jul 1, 2017 | Sep 30, 2017 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2017 | — | |
| Jul 1, 2017 | Sep 30, 2017 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2017 | — | |
| Jul 1, 2010 | — | Other | No | No | — | — | — | Resolved | Oct 7, 2010 | — | |
| Jul 1, 2010 | — | Other | No | No | — | — | — | Resolved | Oct 7, 2010 | — | |
| Jul 1, 2010 | — | Other | No | No | — | — | — | Resolved | Oct 7, 2010 | — | |
| Jul 1, 2010 | — | Other | No | No | — | — | — | Resolved | Oct 7, 2010 | — | |
| Apr 1, 2010 | Jun 30, 2010 | MCL | Yes | No | 63 UG/L | 0.060 mg/L | 60 | Resolved | Jun 30, 2010 | — | |
| Apr 1, 2010 | Jun 30, 2010 | MCL | Yes | No | 63 UG/L | 0.060 mg/L | 60 | Resolved | Jun 30, 2010 | — | |
| Apr 1, 2010 | Jun 30, 2010 | MCL | Yes | No | 63 UG/L | 0.060 mg/L | 60 | Resolved | Jun 30, 2010 | — | |
| Apr 1, 2010 | Jun 30, 2010 | MCL | Yes | No | 63 UG/L | 0.060 mg/L | 60 | Resolved | Jun 30, 2010 | — | |
| Apr 1, 2010 | Jun 30, 2010 | MCL | Yes | No | 63 UG/L | 0.060 mg/L | 60 | Resolved | Jun 30, 2010 | — | |
| Oct 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 61.3 UG/L | 0.060 mg/L | 60 | Resolved | Dec 31, 2009 | — | |
| Oct 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 61.3 UG/L | 0.060 mg/L | 60 | Resolved | Dec 31, 2009 | — | |
| Oct 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 61.3 UG/L | 0.060 mg/L | 60 | Resolved | Dec 31, 2009 | — | |
| Oct 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 61.3 UG/L | 0.060 mg/L | 60 | Resolved | Dec 31, 2009 | — | |
| Oct 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 61.3 UG/L | 0.060 mg/L | 60 | Resolved | Dec 31, 2009 | — | |
| Oct 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 61.3 UG/L | 0.060 mg/L | 60 | Resolved | Dec 31, 2009 | — | |
| Oct 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 61.3 UG/L | 0.060 mg/L | 60 | Resolved | Dec 31, 2009 | — | |
| Jul 1, 2009 | Sep 30, 2009 | MCL | Yes | No | 67 UG/L | 0.060 mg/L | 60 | Resolved | Sep 30, 2009 | — | |
| Jul 1, 2009 | Sep 30, 2009 | MCL | Yes | No | 67 UG/L | 0.060 mg/L | 60 | Resolved | Sep 30, 2009 | — | |
| Jul 1, 2009 | Sep 30, 2009 | MCL | Yes | No | 67 UG/L | 0.060 mg/L | 60 | Resolved | Sep 30, 2009 | — |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.