Facility profile
Rocky Mountain Steel Mill
Significant Violation across 11 of the last 12 quarters, with $171,500 in recorded penalties.
Noncompliance quarters
11
Counted from the imported ECHO record over the last 12 quarters.
Penalties
$171,500
Recorded enforcement amount carried into the facility page.
Last inspection
2025-08-05
Displayed as plain language instead of hidden in agency exports.
Trend
Watch
Reported on-site releases are lower in 2024 than in 2022.
| Year | Air | Water | Land | Total |
|---|---|---|---|---|
| 2022 | 42,047 lbs | 6,709 lbs | 0 lbs | 48,756 lbs |
| 2023 | 40,196 lbs | 5,862 lbs | 0 lbs | 46,058 lbs |
| 2024 | 30,778 lbs | 6,295 lbs | 0 lbs | 37,073 lbs |
Chemical breakdown
What this facility is reporting
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Hydrogen fluoride
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Zinc compounds
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Manganese compounds
Latest 2024 TRI data shows water as the largest reported pathway for this chemical at the facility.
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Lead compounds
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Nickel compounds
Latest 2024 TRI data shows water as the largest reported pathway for this chemical at the facility.
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Mercury compounds
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Chromium compounds (except for chromite ore mined in the Transvaal Region)
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Dioxin and dioxin-like compounds
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Copper compounds
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
Enforcement layer
Why the ECHO-style detail matters
Significant Violation across 11 of the last 12 quarters, with $171,500 in recorded penalties.