EPA TRI Facility · Fabricated Metals
Sun Steel Treating Inc
South Lyon, MI
- Total releases
- 100.7K lbs
- Chemicals reported
- 3
- Latest report
- 2022
- Primary pathway
- Off-site Transfers
OFFSITE Form-R mix
Sun Steel Treating Inc: how the 100.7K lbs splits
100.7K lbs across all reported pathways
- Off-site Transfers 100.2K lbs 99.5%
- Air Releases 517 lbs 0.5%
Sun Steel Treating Inc's 100.7K lbs Form-R total is OFFSITE - off-site transfers is 99.5% of the bar. Next segment: air releases at 0.5%. Leading chemical by pounds: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)).
MID volume OFFSITE pathway CLEAN
Sun Steel Treating Inc is an EPA Toxics Release Inventory reporter in South Lyon, MI, in the fabricated metals sector. It reported 19.6K lbs of releases across 2 chemicals in 2022, and 100.7K lbs in total across its 2019-2022 reporting years. That ranks 4,569 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. Sun Steel Treating Inc is pounds #156 and chemical-count #336 at 100.7K 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). Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Michigan Seamless Tube LLC; Fortech Products; Continental Aluminum; Excelda Manufacturing Holding LLC - Brighton A. Similar-scale Fabricated Metals peers outside Michigan: Mid-America Steel Drum Co. in C; Pioneer Metal Finishing Green Bay Wi; Azz Galvanizing - San Antonio; Tampa Steel Erecting Co. Largest disclosed chemicals by pounds: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)); Barium And Barium Compounds; Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region).
Sun Steel Treating Inc stamps MID volume with a dominant OFFSITE pathway (99.5% off-site transfers) across 3 chemicals. Cumulative Form-R extract: 100.7K lbs (2019–2022). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Mid-America Steel Drum Co. in C and Pioneer Metal Finishing Green Bay Wi.
Sun Steel Treating Inc 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
Sun Steel Treating Inc: Barium compounds (except for barium sulfate (CAS No. 7727-43-7))-led volume
Among the 3,421 Fabricated Metals facilities in this database, Sun Steel Treating Inc reports the 450th-largest volume, placing it in the top 13.2% of its sector. Its reported volume is concentrated rather than spread: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) alone is 66.1% of the total. Scale peers outside Michigan include Mid-America Steel Drum Co. in C and Pioneer Metal Finishing Green Bay Wi.
Concentrated means ≥60% of Sun Steel Treating Inc's pounds in one chemical - here Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) at 66.1%. Not a toxicity score.
Sun Steel Treating Inc Form-R facts
Compare this facility
See how Sun Steel Treating Inc stacks up against nearby facilities and the typical reporter.
70% less than the comparison
25% 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 Sun Steel Treating Inc releases toxic chemicals into the environment. Total: 100.7K lbs.
Emissions Trend Summary
From 2019 to 2022, total releases decreased by 61% (50.1K lbs to 19.6K lbs).
Sun Steel Treating Inc: annual Form-R pounds
MID site · OFFSITE pathway · TRI years 2019–2022
- 2019 0
- 2020 0
- 2021 0
- 2022 0
What this shows Sun Steel Treating Inc year-over-year reported totals (decreased by 61% from 2019 to 2022). 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: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)).
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 50.1K lbs | 1 |
| 2020 | 16.5K lbs | 1 |
| 2021 | 14.5K lbs | 1 |
| 2022 | 19.6K lbs | 2 |
Chemical Releases
Aggregated across all reporting years (2019–2022). Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 66.6K lbs | - |
| Barium And Barium Compounds | 32.9K lbs | - |
| Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) | 1.2K lbs | - |
Sun Steel Treating Inc · OFFSITE-pathway site
Nearest TRI Facilities to Sun Steel Treating Inc
Closest other reporters in Michigan - including Michigan Seamless Tube LLC, Fortech Products, Continental Aluminum, ordered by distance.
Showing 8 of 790 other reporting facilities in Michigan.
Similar Fabricated Metals Facilities
Other Fabricated Metals facilities with similar total release volumes (±80%), outside Michigan - e.g. Mid-America Steel Drum Co. in C, Pioneer Metal Finishing Green Bay Wi, Azz Galvanizing - San Antonio.
Compare beyond Michigan
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Sun Steel Treating Inc on cumulative reported pounds (100.7K lbs) and distinct chemical count (3). Release-pound peers include Dal-Tile Corp Fayette Plant, Mid-America Steel Drum Co. in C, Intertape Polymer Group. Chemical-count peers include Industrial C&s of Pr LLC Arecibo Plant, Island Litho Corp., Fenwal International 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.
- Dal-Tile Corp Fayette Plant Fayette, AL · Nonmetallic Mineral Product 100.7K lbs reported
- Mid-America Steel Drum Co. in C Oak Creek, WI · Fabricated Metals 100.7K lbs reported
- Intertape Polymer Group Midland, NC · Paper 100.6K lbs reported
- Pioneer Metal Finishing Green Bay Wi Green Bay, WI · Fabricated Metals 100.6K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
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 Barium compounds (except for barium sulfate (CAS No. 7727-43-7)), Barium And Barium Compounds, Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region); nearby reporters include Michigan Seamless Tube LLC. Sun Steel Treating Inc stamps MID volume · OFFSITE pathway · CLEAN 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 Sun Steel Treating Inc TRI extract (MID · OFFSITE · CLEAN · lead Barium compounds (except for barium sulfate (CAS No. 7727-43-7))) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Sun Steel Treating Inc totals are self-reported EPCRA §313 estimates for South Lyon, MI, latest year 2022. Form-R rows span 2019–2022 (4 years). NAICS 332811 · Fabricated Metals. 3.7% of Oakland TRI pounds in this extract. Nearest ABS peer: Dal-Tile Corp Fayette Plant (Δ 1 lbs). Pounds ≠ exposure.
Sun Steel Treating Inc stamps MID volume · OFFSITE pathway · CLEAN · lead Barium compounds (except for barium sulfate (CAS No. 7727-43-7)). 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