Facility profile
Indiana Michigan Power Dba Aep Rockpo
Violation Identified across 8 of the last 12 quarters in the imported ECHO record.
Noncompliance quarters
8
Counted from the imported ECHO record over the last 12 quarters.
Penalties
$0
Recorded enforcement amount carried into the facility page.
Last inspection
2025-06-17
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 | 220,777 lbs | 4,200 lbs | 1,394,720 lbs | 1,619,697 lbs |
| 2023 | 106,817 lbs | 5,060 lbs | 674,432 lbs | 786,309 lbs |
| 2024 | 192,815 lbs | 1,552 lbs | 1,187,174 lbs | 1,381,541 lbs |
Chemical breakdown
What this facility is reporting
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Barium compounds (except for barium sulfate (CAS No. 7727-43-7))
Latest 2024 TRI data shows land as the largest reported pathway for this chemical at the facility.
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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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Manganese compounds
Latest 2024 TRI data shows land as the largest reported pathway for this chemical at the facility.
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Vanadium compounds
Latest 2024 TRI data shows land as the largest reported pathway for this chemical at the facility.
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Copper compounds
Latest 2024 TRI data shows land as the largest reported pathway for this chemical at the facility.
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Zinc compounds
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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Nickel compounds
Latest 2024 TRI data shows land 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 land as the largest reported pathway for this chemical at the facility.
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Hydrochloric 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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Lead compounds
Latest 2024 TRI data shows land as the largest reported pathway for this chemical at the facility.
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Arsenic 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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Mercury compounds
Latest 2024 TRI data shows land as the largest reported pathway for this chemical at the facility.
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Polycyclic aromatic compounds
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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Benzo[g, h, i]perylene
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 8 of the last 12 quarters in the imported ECHO record.