Facility profile
Freeport-mcmoran Sierrita, Inc.
Violation Identified across 1 of the last 12 quarters in the imported ECHO record.
Noncompliance quarters
1
Counted from the imported ECHO record over the last 12 quarters.
Penalties
$0
Recorded enforcement amount carried into the facility page.
Last inspection
2025-04-03
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 | 23,382 lbs | 0 lbs | 2,127,670 lbs | 2,151,052 lbs |
| 2023 | 42,535 lbs | 0 lbs | 2,435,430 lbs | 2,477,965 lbs |
| 2024 | 41,338 lbs | 0 lbs | 1,640,561 lbs | 1,681,898 lbs |
Chemical breakdown
What this facility is reporting
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Lead compounds
Latest 2024 TRI data shows land as the largest reported pathway for this chemical at the facility.
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Manganese
Latest 2024 TRI data shows land as the largest reported pathway for this chemical at the facility.
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Arsenic
Latest 2024 TRI data shows land as the largest reported pathway for this chemical at the facility.
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Cobalt
Latest 2024 TRI data shows land as the largest reported pathway for this chemical at the facility.
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Nickel
Latest 2024 TRI data shows land as the largest reported pathway for this chemical at the facility.
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Chromium
Latest 2024 TRI data shows land as the largest reported pathway for this chemical at the facility.
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Molybdenum trioxide
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.
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n-Butyl alcohol
Latest 2024 TRI data shows land as the largest reported pathway for this chemical at the facility.
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Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Mercury compounds
Latest 2024 TRI data shows land as the largest reported pathway for this chemical at the facility.
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Ammonia
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Chlorine
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Nitrate compounds (water dissociable; reportable only when in aqueous solution)
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
Violation Identified across 1 of the last 12 quarters in the imported ECHO record.