County page
Cascade County
Cascade County currently shows 3 Superfund sites, 135 imported facility profiles, and 643,435 lbs in loaded TRI releases.
Overview
What this county page is saying
This live county page is generated from the ingested EPA datasets. It merges ECHO facility compliance rows, TRI release totals, and any Superfund sites attached to Cascade County.
The latest loaded TRI year is 2024, with 643,435 lbs in county-level on-site releases tied to the imported facility set.
Focus points
Design and product notes
County pages combine facility compliance history with chemical release totals.
TRI chemistry shows what is being reported, while ECHO shows who keeps drawing enforcement attention.
Superfund records add legacy cleanup context even when live contaminant detail is still sparse.
Superfund layer
Cleanup sites in this county
Acm Smelter and Refinery
Acm Smelter and Refinery is in EPA's Superfund layer for Black Eagle, MT. Live ingestion currently includes the official EPA detail links and geocoded site record.
Barker Hughesville Mining District
Barker Hughesville Mining District is in EPA's Superfund layer for Monarch, MT. Live ingestion currently includes the official EPA detail links and geocoded site record.
Carpenter Snow Creek Mining District
Carpenter Snow Creek Mining District is in EPA's Superfund layer for Neihart, MT. Live ingestion currently includes the official EPA detail links and geocoded site record.
Facilities
Worst polluters and compliance pressure
Calumet Montana Refining (cmr), Llc
Significant Violation across 12 of the last 12 quarters, with $409,709 in recorded penalties.
General Mills Operations Inc
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Adf International
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Afb Mosquito Control
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Dixon Bros Inc - Dixon Bros
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Great Falls Transit District
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Malmstrom Air Force Base Small Ms-4
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Meadow Gold Dairies-great Falls
Significant Violation across 12 of the last 12 quarters in the imported ECHO record.
Perry Merkel Shop
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Shumaker Trucking - Great Falls International Airport Long Term Parking Expan
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
South Winds Wastewater Treatment Plant
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Vaughn Wwtf
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Western Livestock Auction
Significant Violation across 12 of the last 12 quarters in the imported ECHO record.
Big Bend Ranch Subdivision
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Neihart Town of
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Prairie Water Company
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Ryan Dam Water System
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Simms High School
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Spring Tree Ridge
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
Tri Hill Wua Gore Hill
Violation Identified across 12 of the last 12 quarters in the imported ECHO record.
| Chemical | Group | Facilities | Total pounds |
|---|---|---|---|
| Methanol | TRI-listed chemical | 2 | 558,524 lbs |
| n-Hexane | TRI-listed chemical | 1 | 31,874 lbs |
| Propylene | TRI-listed chemical | 1 | 15,788 lbs |
| Ammonia | TRI-listed chemical | 1 | 9,156 lbs |
| Ethylene | TRI-listed chemical | 1 | 6,746 lbs |
| Toluene | Volatile organic compound | 1 | 5,067 lbs |
| Hydrogen sulfide | TRI-listed chemical | 1 | 3,902 lbs |
| Xylene (mixed isomers) | Volatile organic compound | 1 | 3,881 lbs |
| 1, 2, 4-Trimethylbenzene | Volatile organic compound | 1 | 2,709 lbs |
| Benzene | Volatile organic compound | 1 | 2,086 lbs |
| Cyclohexane | TRI-listed chemical | 1 | 1,650 lbs |
| Ethylbenzene | Volatile organic compound | 1 | 888 lbs |
| Cumene | TRI-listed chemical | 1 | 637 lbs |
| Naphthalene | TRI-listed chemical | 1 | 507 lbs |
| Nickel compounds | Metals and metal compounds | 1 | 15 lbs |
| Lead | Metals and metal compounds | 1 | 3 lbs |
| Hydrogen fluoride | TRI-listed chemical | 1 | 1 lbs |
| Mercury | TRI-listed chemical | 1 | 1 lbs |
| Zinc compounds | TRI-listed chemical | 1 | 0 lbs |
| Molybdenum trioxide | TRI-listed chemical | 1 | 0 lbs |
Violation pages
State-level violation context tied to this county
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Clean Air Act violations in Montana
Montana facilities in the imported ECHO data show air-program oversight, inspections, or noncompliance signals.
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Clean Water Act violations in Montana
Montana facilities in the imported ECHO data show water-permit pressure, inspections, or noncompliance signals.
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RCRA violations in Montana
Montana facilities in the imported ECHO data show hazardous-waste or RCRA oversight signals.