Facility profile
General Motors Llc Wentzville Assembly
Violation Identified across 2 of the last 12 quarters, with $3,750 in recorded penalties.
Noncompliance quarters
2
Counted from the imported ECHO record over the last 12 quarters.
Penalties
$3,750
Recorded enforcement amount carried into the facility page.
Last inspection
2025-08-12
Displayed as plain language instead of hidden in agency exports.
Trend
Watch
Reported on-site releases are higher in 2024 than in 2022.
| Year | Air | Water | Land | Total |
|---|---|---|---|---|
| 2022 | 340,021 lbs | 0 lbs | 0 lbs | 340,021 lbs |
| 2023 | 328,368 lbs | 0 lbs | 0 lbs | 328,368 lbs |
| 2024 | 462,773 lbs | 0 lbs | 0 lbs | 462,773 lbs |
Chemical breakdown
What this facility is reporting
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Certain glycol ethers
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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1, 2, 4-Trimethylbenzene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Xylene (mixed isomers)
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 air as the largest reported pathway for this chemical at the facility.
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Cumene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Methyl isobutyl ketone
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Ethylbenzene
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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N-Methyl-2-pyrrolidone
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Toluene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Methanol
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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n-Hexane
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Benzene
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
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Cyclohexane
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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Benzo[g, h, i]perylene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Diisononyl Phthalates (DINP)
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Ethylene glycol
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.
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Nitric acid
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Sodium nitrite
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 2 of the last 12 quarters, with $3,750 in recorded penalties.