Facility profile
Hawaii Electric Co Waiau Power Plant
Violation Identified across 10 of the last 12 quarters, with $235,400 in recorded penalties.
Noncompliance quarters
10
Counted from the imported ECHO record over the last 12 quarters.
Penalties
$235,400
Recorded enforcement amount carried into the facility page.
Last inspection
2025-08-14
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 | 236,740 lbs | 2 lbs | 0 lbs | 236,743 lbs |
| 2023 | 328,167 lbs | 2 lbs | 0 lbs | 328,169 lbs |
| 2024 | 232,160 lbs | 2 lbs | 0 lbs | 232,162 lbs |
Chemical breakdown
What this facility is reporting
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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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Ammonia
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 air 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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Naphthalene
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 10 of the last 12 quarters, with $235,400 in recorded penalties.