Total reported releases
Total reported releases at General Motors Wentzville Assembly have more than doubled since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
General Motors Wentzville Assembly
Total reported releases 479k lb rose sharply year over year (+42%). Total releases concentrations have more than doubled since 2010.
1500 E RT A, Wentzville, Missouri · 336110 · Transportation Equipment · operated by General Motors LLC
Anomaly engine
Notable Signals
1,2,4-Trimethylbenzene
1,2,4-Trimethylbenzene at General Motors Wentzville Assembly have risen 75% since 2010 (through 2024).
Certain glycol ethers
Certain glycol ethers releases at General Motors Wentzville Assembly rose from 76k lb to 130k lb between 2023 and 2024.
Methyl isobutyl ketone
Methyl isobutyl ketone at General Motors Wentzville Assembly have more than halved since 2014 (through 2024).
Chemicals reported · most recent year
What This Facility Releases
Certain glycol ethers
Certain glycol ethers concentrations have more than doubled since 2010.
1,2,4-Trimethylbenzene
1,2,4-Trimethylbenzene concentrations are up 75% since 2010.
Xylene (mixed isomers)
Xylene (mixed isomers) concentrations have more than doubled since 2010.
n-Butyl alcohol
n-Butyl alcohol concentrations have more than doubled since 2010.
Cumene
Cumene concentrations have more than doubled since 2015.
Methyl isobutyl ketone
Methyl isobutyl ketone concentrations have more than halved since 2014.
Ethylbenzene
Ethylbenzene concentrations have more than doubled since 2010.
Naphthalene
Naphthalene concentrations have more than doubled since 2013.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (13 Census block groups, population-weighted demographics): a population of 33,094. Why we surface this →
18.0%
Low-income
16.8%
People of color
5.5%
Under age 5
14.8%
Over age 64
Source: Census ACS 2018-2022 block-group demographics, population-weighted across the 3-mile buffer around this facility (from USEPA-clone/EJAM-open blockgroupstats). Indicator-level percentile and EJ-disparity scores are surfaced on the county page and the state page — they describe wider regional exposure burdens, not effects attributable to a single facility.
Source. EPA Toxics Release Inventory · retrieved 2026-05-07. Reporting year 2024. TRI is a federal public-domain dataset under 17 USC §105.
What this is not. TRI quantifies releases reported by the facility under EPCRA §313 — not ambient air or water concentrations measured at receptors. We do not attribute individual health outcomes to specific facilities; that exceeds what the data can support.