EPA TRI Facility · Plastics and Rubber
Great Lakes Composites LLC
Owosso, MI · Parent: National Composites LLC
- Total releases
- 101.4K lbs
- Chemicals reported
- 1
- Carcinogens
- 1
- Primary pathway
- Air Releases
AIR Form-R mix
Great Lakes Composites LLC: how the 101.4K lbs splits
101.4K lbs across all reported pathways
- Air Releases 101.4K lbs 100.0%
Great Lakes Composites LLC's 101.4K lbs Form-R total is AIR - air releases is 100.0% of the bar. Off-site transfers stay separate from air, water, and land releases. Leading chemical by pounds: Styrene.
MID volume AIR pathway CARC-HEAVY
Great Lakes Composites LLC is an EPA Toxics Release Inventory reporter in Owosso, MI, in the plastics and rubber sector. It reported 12.2K lbs of releases across 1 chemical in 2023, and 101.4K lbs in total across its 2019-2023 reporting years. That ranks 4,551 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. Great Lakes Composites LLC is pounds #154 and chemical-count #622 at 101.4K 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: Owosso Graphic Arts; Cie Newcor Mtg; Pyramid Peak Coatings LLC; Toledo Commutator Co. Similar-scale Plastics and Rubber peers outside Michigan: Daramic LLC; Global Composites Inc Plant 3; Aquatic Co; Gates Corp. Other National Composites LLC sites in this extract: Able Manufacturing & Assembly LLC; Sunrise Fiberglass of Minnesota LLC; Molded Plastic Industries Inc. Largest disclosed chemicals by pounds: Styrene.
Great Lakes Composites LLC stamps MID volume with a dominant AIR pathway (100.0% air releases) across 1 chemical · 1 carcinogen-classified. Cumulative Form-R extract: 101.4K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Daramic LLC and Global Composites Inc Plant 3.
Great Lakes Composites LLC vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
101K lbs Top 18% higher than 82% 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
Great Lakes Composites LLC: Styrene-led volume
Among the 1,504 Plastics and Rubber facilities in this database, Great Lakes Composites LLC reports the 318th-largest volume, placing it in the top 21.1% of its sector. Its reported volume is concentrated rather than spread: Styrene alone is 100% of the total. Carcinogen-classified chemicals make up 100% of the reported pounds, not just of the chemical count. Scale peers outside Michigan include Daramic LLC and Global Composites Inc Plant 3.
Concentrated means ≥60% of Great Lakes Composites LLC's pounds in one chemical - here Styrene at 100%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Great Lakes Composites LLC's total reported releases fell from 19.1 thousand lb in 2022 to 12.2 thousand lb in 2023, based on EPA TRI filings.
- Great Lakes Composites LLC's air releases fell from 19.1 thousand lb in 2022 to 12.2 thousand lb in 2023, based on EPA TRI filings.
Great Lakes Composites LLC Form-R facts
Compare this facility
See how Great Lakes Composites LLC stacks up against nearby facilities and the typical reporter.
91% less than the comparison
75% less 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 Great Lakes Composites LLC releases toxic chemicals into the environment. Total: 101.4K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 41% (20.9K lbs to 12.2K lbs).
Great Lakes Composites LLC: 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 Great Lakes Composites LLC year-over-year reported totals (decreased by 41% 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: Styrene.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 20.9K lbs | 1 |
| 2020 | 16.0K lbs | 1 |
| 2021 | 33.1K lbs | 1 |
| 2022 | 19.1K lbs | 1 |
| 2023 | 12.2K lbs | 1 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 1 of 1 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Styrene | 101.4K lbs | Carcinogen |
Great Lakes Composites LLC · AIR-pathway site
Nearest TRI Facilities to Great Lakes Composites LLC
Closest other reporters in Michigan - including Owosso Graphic Arts, Cie Newcor Mtg, Pyramid Peak Coatings LLC, ordered by distance.
Showing 8 of 790 other reporting facilities in Michigan.
Similar Plastics and Rubber Facilities
Other Plastics and Rubber facilities with similar total release volumes (±80%), outside Michigan - e.g. Daramic LLC, Global Composites Inc Plant 3, Aquatic Co.
Compare beyond Michigan
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Great Lakes Composites LLC on cumulative reported pounds (101.4K lbs) and distinct chemical count (1). Release-pound peers include Ironunits LLC, Valley Queen Cheese Factory Inc., Daramic LLC. Chemical-count peers include Ecoelectrica LP, Planta Penuelas, Tallaboa Puerto Rico LLC. 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.
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other National Composites LLC Facilities
Same-parent TRI sites ranked by reported releases - including Able Manufacturing & Assembly LLC, Sunrise Fiberglass of Minnesota LLC, Molded Plastic Industries Inc.
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 Styrene; nearby reporters include Owosso Graphic Arts. Great Lakes Composites LLC 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 Great Lakes Composites LLC TRI extract (MID · AIR · CARC-HEAVY · lead Styrene) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Great Lakes Composites LLC totals are self-reported EPCRA §313 estimates for Owosso, MI, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 326199 · Plastics and Rubber. 8.0% of Shiawassee TRI pounds in this extract. Nearest ABS peer: Ironunits LLC (Δ 12 lbs). Pounds ≠ exposure.
Great Lakes Composites LLC stamps MID volume · AIR pathway · CARC-HEAVY · lead Styrene. 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