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Montana
33 Military Installations with Hazardous Sites in Montana
Total Cost
$177M
Past and estimated future cost of the cleanup of hazardous sites.
Installations
33
Military installations with at least one hazardous site.
High & Medium Risk Installations
6
Military installations with at least one high or medium risk hazardous site.
High Risk
Medium Risk
Low Risk
Risk Not Evaluated or Not Required
Response Complete
Note: This map shows the locations of military installations with hazardous sites. We haven't independently confirmed the location of every installation. If you notice a facility listed at the wrong location, please contact us. The risk level of a site refers to a relative risk assessment made by the DOD to prioritize the cleanup of sites.
| Military Installation | Haz. Sites | City or Nearby Location | County | Highest Risk |
|---|---|---|---|---|
| MALMSTROM AIR FORCE BASE | 58 | GREAT FALLS | Cascade | Risk Not Evaluated or Not Required |
| JFHQ MT ARNG | 41 | FORT HARRISON | Lewis And Clark | High Risk |
| FORT MISSOULA | 22 | MISSOULA | Missoula | Response Complete |
| FORT WILLIAM HENRY HARRISON | 14 | FORT HARRISON | Lewis And Clark | Risk Not Evaluated or Not Required |
| GREAT FALLS INTERNATIONAL... | 12 | GREAT FALLS | Cascade | Risk Not Evaluated or Not Required |
| USARC BILLINGS (AMSA 5-G) | 11 | BILLINGS | Yellowstone | Response Complete |
| USARC HELENA (ECS 6) | 10 | HELENA | Lewis And Clark | Response Complete |
| KALISPELL AFRC | 8 | KALISPELL | Flathead | Response Complete |
| GLASGOW AFB | 6 | GLASGOW | Valley | High Risk |
| FORT MISSOULA ARNG | 6 | MISSOULA | Lewis And Clark | Risk Not Evaluated or Not Required |
| BUTTE AFRC | 5 | BUTTE | Silver Bow | Response Complete |
| HELENA AFRC | 5 | HELENA | Lewis And Clark | Response Complete |
| USARC GREAT FALLS | 5 | GREAT FALLS | Cascade | Response Complete |
| LEWISTOWN ARMY AIR FIELD | 3 | LEWISTOWN | Fergus | Medium Risk |
| GLASGOW ARMY AIR FIELD | 3 | GLASGOW | Valley | Response Complete |
| DEL BONITA AFS | 2 | PORT OF DEL BONITA | Glacier | Response Complete |
| OPHEIM AFS Z-26 | 2 | OPHEIM | Valley | Response Complete |
| GLASGOW PATTERN GUN RGE | 1 | GLASGOW | Valley | Response Complete |
| BROWNING GAP FILLER ANNEX... | 1 | BABB | Glacier | Response Complete |
| LEWISTOWN PATTERN GUN RGE | 1 | GRASSRANGE | Fergus | Response Complete |
| BILLINGS NMCRC | 1 | BILLINGS | Yellowstone | Response Complete |
| FT W H HARRISON ARMY POST | 1 | HELENA | Lewis And Clark | Response Complete |
| SWEETGRASS GAP FILLER ANX | 1 | SWEETGRASS | Toole | Response Complete |
| LEWISTOWN PATTERN BOMB RGE | 1 | WINNETT | Petroleum | Medium Risk |
| BUTTE NRF | 1 | BUTTE | Silver Bow | Response Complete |
| USARC BOZEMAN | 1 | BOZEMAN | Gallatin | Response Complete |
| GLASGOW PATTERN BOMB RGE | 1 | GLASGOW | Valley | Medium Risk |
| GLASGOW WAT SYS AX #2 | 1 | GLASGOW | Valley | Response Complete |
| GREAT FALLS PATTERN BOMB RGE | 1 | 31 MI NE GREAT FLS | Chouteau | Medium Risk |
| GALATA GAP FILLER ANNEXX... | 1 | 19 MI N OF GALATA | Toole | Response Complete |
| FORT PECK AER GUN RGE | 1 | GLASGOW | Valley | Response Complete |
| GREAT FALLS PATTERN GUN RGE | 1 | FORT BENTON | Chouteau | Response Complete |
| GLENDIVE GAP FI AX TM177A | 1 | GLENDIVE | Dawson | Response Complete |
Update (Dec. 5, 2017): We have changed the source of the installation cost data after being notified by the Department of Defense that they erroneously reported their own cost figures on the DERP website. We are now displaying the costs the department says are the most accurate available, from the Pentagon’s DERP database that we received in a FOIA request.
Note: The risk level of a site refers to a relative risk assessment made by the DOD to prioritize the cleanup of sites.
Data: All data comes from the Defense Environmental Restoration Program and the U.S. Army Corps of Engineers, and will be released soon at the ProPublica Data Store. Read our methodology »