EPA TRI Facility · Transportation Equipment
General Motors LLC Orion Assembly Center
Lake Orion, MI · Parent: General Motors LLC
- Total releases
- 228.4K lbs
- Chemicals reported
- 9
- Carcinogens
- 2
- Primary pathway
- Air Releases
AIR Form-R mix
General Motors LLC Orion Assembly Center: how the 228.4K lbs splits
228.4K lbs across all reported pathways
- Air Releases 217.5K lbs 95.2%
- Off-site Transfers 11.0K lbs 4.8%
General Motors LLC Orion Assembly Center's 228.4K lbs Form-R total is AIR - air releases is 95.2% of the bar. Next segment: off-site transfers at 4.8%. Leading chemical by pounds: Formaldehyde.
Carcinogen-classified pounds vs other reported pounds
Same cumulative TRI total as above, split by EPA/IARC carcinogen classification on each chemical: pounds share, not chemical count. Classification is not a site health-risk score.
MID volume AIR pathway CARC-HEAVY
General Motors LLC Orion Assembly Center is an EPA Toxics Release Inventory reporter in Lake Orion, MI, in the transportation equipment sector. It reported 33.3K lbs of releases across 7 chemicals in 2023, and 228.4K lbs in total across its 2019-2023 reporting years. That ranks 3,003 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Michigan's 791 reporting TRI sites, pounds #1 is not chemical-count #1. General Motors LLC Orion Assembly Center is pounds #104 and chemical-count #93 at 228.4K lbs. Cleveland-Cliffs Steel Corp Dearborn Works leads reported pounds (53.0M lbs) at 17 chemicals (chemical-count #27). Eq Detroit Inc leads chemical count at 71 chemicals (14.0M lbs, pounds #5). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Dana Driveshaft Manufacturing LLC; Jabil; Lymtal International,inc.; Ascorium N.a. Inc. Similar-scale Transportation Equipment peers outside Michigan: Cirrus Design Corp/cirrus Aircraft; Honda Development & Manufacturing of America LLC - Anna E; Tenneco; Mercedes-Benz Vans LLC. Other General Motors LLC sites in this extract: Gm Truck Group Fort Wayne Assembly; Gm Truck Group Flint Assembly Plant; General Motors Wentzville Assembly; Gm Mlcg Fairfax Assembly. Largest disclosed chemicals by pounds: Formaldehyde; Certain glycol ethers; N-Methyl-2-pyrrolidone; n-Butyl alcohol.
Compare General Motors LLC Orion Assembly Center with
Nearest reporters in Michigan
- Dana Driveshaft Manufacturing LLC Auburn Hills · 6 lbs
- Jabil Auburn Hills · 1 lbs
- Lymtal International,inc. Lake Orion · 3.7K lbs
- Ascorium N.a. Inc Auburn Hills · 5.9K lbs
Similar-scale Transportation Equipment sites elsewhere: Cirrus Design Corp/cirrus Aircraft (MN) · Honda Development & Manufacturing of America LLC - Anna E (OH) · Tenneco (WI)
General Motors LLC Orion Assembly Center stamps MID volume with a dominant AIR pathway (95.2% air releases) across 9 chemicals · 2 carcinogen-classified. Cumulative Form-R extract: 228.4K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Cirrus Design Corp/cirrus Aircraft and Honda Development & Manufacturing of America LLC - Anna E.
General Motors LLC Orion Assembly Center vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
228K lbs Top 12% higher than 88% of 25,986 reporting TRI facilities
Each bar is a $1M-wide band; taller bars hold more reporting TRI facilities. The dashed line and filled bar mark this facility. Hover, focus, or tap a bar for its full count, share, and position.
Source U.S. Environmental Protection Agency, Toxics Release Inventory · 2023 reporting year
General Motors LLC Orion Assembly Center: carcinogen-lbs share on Form-R
Among the 1,603 Transportation Equipment facilities in this database, General Motors LLC Orion Assembly Center reports the 169th-largest volume, placing it in the top 10.5% of its sector. Carcinogen-classified chemicals make up 54.9% of the reported pounds, not just of the chemical count. Scale peers outside Michigan include Cirrus Design Corp/cirrus Aircraft and Honda Development & Manufacturing of America LLC - Anna E.
Carcinogen-heavy means ≥50% of pounds (54.9% here), not of chemical count. EPA/IARC classification ≠ site risk.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- General Motors LLC Orion Assembly Center's total reported releases fell from 53.8 thousand lb in 2022 to 33.3 thousand lb in 2023, based on EPA TRI filings.
- General Motors LLC Orion Assembly Center's off-site transfers fell from 1.5 thousand lb in 2022 to 804 lb in 2023, based on EPA TRI filings.
- General Motors LLC Orion Assembly Center's air releases fell from 52.3 thousand lb in 2022 to 32.5 thousand lb in 2023, based on EPA TRI filings.
- General Motors LLC Orion Assembly Center's chemicals reported rose from 6 in 2022 to 7 in 2023, based on EPA TRI filings.
General Motors LLC Orion Assembly Center Form-R facts
Compare this facility
See how General Motors LLC Orion Assembly Center stacks up against nearby facilities and the typical reporter.
38073.2× more than the comparison
3.0× more than the comparison
Comparison reflects reported pounds and chemical counts, not toxicity or health risk. Averages cover facilities reporting any release.
How does this facility release toxic chemicals?
How General Motors LLC Orion Assembly Center releases toxic chemicals into the environment. Total: 228.4K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 30% (47.4K lbs to 33.3K lbs).
General Motors LLC Orion Assembly Center: annual Form-R pounds
MID site · AIR pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows General Motors LLC Orion Assembly Center year-over-year reported totals (decreased by 30% from 2019 to 2023). TRI figures are self-reported estimates and can swing with production, waste handling, and reporting changes, not only with controls. Lead chemical in the extract: Formaldehyde.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 47.4K lbs | 7 |
| 2020 | 33.6K lbs | 6 |
| 2021 | 60.3K lbs | 5 |
| 2022 | 53.8K lbs | 6 |
| 2023 | 33.3K lbs | 7 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 2 of 9 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Formaldehyde | 125.3K lbs | Carcinogen |
| Certain glycol ethers | 51.9K lbs | - |
| N-Methyl-2-pyrrolidone | 19.3K lbs | - |
| n-Butyl alcohol | 11.4K lbs | - |
| 1,2,4-Trimethylbenzene | 9.9K lbs | - |
| Ethylene glycol | 6.9K lbs | - |
| Toluene | 2.0K lbs | - |
| Xylene (mixed isomers) | 1.6K lbs | - |
| Methyl isobutyl ketone | 85 lbs | Carcinogen |
General Motors LLC Orion Assembly Center · AIR-pathway site
Nearest TRI Facilities to General Motors LLC Orion Assembly Center
Closest other reporters in Michigan - including Dana Driveshaft Manufacturing LLC, Jabil, Lymtal International,inc., ordered by distance.
Showing 8 of 790 other reporting facilities in Michigan.
Similar Transportation Equipment Facilities
Other Transportation Equipment facilities with similar total release volumes (±80%), outside Michigan - e.g. Cirrus Design Corp/cirrus Aircraft, Honda Development & Manufacturing of America LLC - Anna E, Tenneco.
Compare beyond Michigan
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest General Motors LLC Orion Assembly Center on cumulative reported pounds (228.4K lbs) and distinct chemical count (9). Release-pound peers include Entek International LLC, Texas Instruments Inc, Cirrus Design Corp/cirrus Aircraft. Chemical-count peers include Viatris Pharmaceuticals LLC, Prepa - San Juan Steam Plant, Solutia Inc. Neighborhoods are forced disjoint so each axis surfaces a different set of sites.
Similar reported release pounds
Nearest out-of-state reporters (≥1,000 lbs) by absolute TRI pounds, not same-industry or same-county neighbors.
- Entek International LLC Lebanon, OR · Plastics and Rubber 228.4K lbs reported
- Texas Instruments Inc South Portland, ME · Computers and Electronic Products 228.5K lbs reported
- Cirrus Design Corp/cirrus Aircraft Duluth, MN · Transportation Equipment 228.5K lbs reported
- Pro-Tec Coating Co Leipsic, OH · Fabricated Metals 228.6K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
- Viatris Pharmaceuticals LLC Barceloneta, PR · Chemicals 9 chemicals
- Prepa - San Juan Steam Plant Puerto Nuevo, PR · Electric Utilities 9 chemicals
- Solutia Inc Springfield, MA · Plastics and Rubber 9 chemicals
- O'Connell Oil Co Merrill Road Facility Pittsfield, MA · Petroleum Bulk Terminals 9 chemicals
Other General Motors LLC Facilities
Same-parent TRI sites ranked by reported releases - including Gm Truck Group Fort Wayne Assembly, Gm Truck Group Flint Assembly Plant, General Motors Wentzville Assembly.
About TRI Data
Data as of 2023 reporting year. Source: U.S. Environmental Protection Agency (EPA) Toxic Release Inventory.
On this page the largest disclosed chemicals include Formaldehyde, Certain glycol ethers, N-Methyl-2-pyrrolidone, n-Butyl alcohol; nearby reporters include Dana Driveshaft Manufacturing LLC. General Motors LLC Orion Assembly Center stamps MID volume · AIR pathway · CARC-HEAVY carcinogen-lbs on this Form-R extract. Totals are self-reported estimates under EPCRA §313, not measured stack emissions or a health-risk score.
Use and verify this record
This General Motors LLC Orion Assembly Center TRI extract (MID · AIR · CARC-HEAVY · lead Formaldehyde) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
General Motors LLC Orion Assembly Center totals are self-reported EPCRA §313 estimates for Lake Orion, MI, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 336111 · Transportation Equipment. 8.4% of Oakland TRI pounds in this extract. Nearest ABS peer: Entek International LLC (Δ 60 lbs). Pounds ≠ exposure.
General Motors LLC Orion Assembly Center stamps MID volume · AIR pathway · CARC-HEAVY · lead Formaldehyde. PlainEnviro renders this EPA Form-R extract from its pipeline; no figure is typed in by an editor. Corrections: editorial policy.
All federal data sources used on this page
- EPA Toxics Release Inventory (TRI) Basic Data Files - annual self-reported chemical-release filings. epa.gov
- EPA TRI Program reference - how chemicals and reported releases are counted. epa.gov
- EPA Facility Registry Service - facility location and identity. epa.gov
- EPA ECHO - regulatory and compliance context. epa.gov
- EPA Envirofacts - the EPA data warehouse exposing these datasets. epa.gov