EPA TRI Facility · Primary Metals
Steel Dynamics Inc-Flat Roll Div
Butler, IN · Parent: Steel Dynamics Inc
- Total releases
- 3.1M lbs
- Chemicals reported
- 20
- Carcinogens
- 7
- Primary pathway
- Off-site Transfers
OFFSITE Form-R mix
Steel Dynamics Inc-Flat Roll Div: how the 3.1M lbs splits
3.1M lbs across all reported pathways
- Off-site Transfers 3.0M lbs 96.8%
- Air Releases 97.9K lbs 3.1%
- Water Discharges 1.2K lbs <0.1%
- Land Disposal 0 lbs <0.1%
Steel Dynamics Inc-Flat Roll Div's 3.1M lbs Form-R total is OFFSITE - off-site transfers is 96.8% of the bar. Next segment: air releases at 3.1%. Leading chemical by pounds: Manganese compounds.
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.
HEAVY volume OFFSITE pathway CARC-LEAN
Steel Dynamics Inc-Flat Roll Div is an EPA Toxics Release Inventory reporter in Butler, IN, in the primary metals sector. It reported 645.6K lbs of releases across 20 chemicals in 2023, and 3.1M lbs in total across its 2019-2023 reporting years. That ranks 621 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Indiana's 871 reporting TRI sites, pounds #1 is not chemical-count #1. Steel Dynamics Inc-Flat Roll Div is pounds #27 and chemical-count #29 at 3.1M lbs. Uss Gary Works leads reported pounds (77.4M lbs) at 36 chemicals (chemical-count #9). Tradebe Treatment & Recycling LLC leads chemical count at 98 chemicals (11.9M lbs, pounds #12). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Butler Mill Service Co; Heidtman Steel Products Inc.; New Millennium Building Systems LLC; Multimatic Indiana Inc.. Similar-scale Primary Metals peers outside Indiana: Mueller Co. Plant #4 (south Foundry); Befesa Zinc US Inc.; Ati Specialty Alloys & Components LLC; Wieland Rolled Products N.a. - East Alton Casting P. Other Steel Dynamics Inc sites in this extract: Steel Dynamics Inc-Engineered Bar Products Div; Steel Dynamics Inc Flat Roll Group Columbus Div; Sdi Lafarga LLC; Steel Dynamics Inc Structural & Rail Div. Largest disclosed chemicals by pounds: Manganese compounds; Zinc compounds; Copper compounds; Nickel compounds.
Steel Dynamics Inc-Flat Roll Div stamps HEAVY volume with a dominant OFFSITE pathway (96.8% off-site transfers) across 20 chemicals · 7 carcinogen-classified. Cumulative Form-R extract: 3.1M lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Mueller Co. Plant #4 (south Foundry) and Befesa Zinc US Inc..
Steel Dynamics Inc-Flat Roll Div vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
3.1M lbs Top 2% higher than 98% 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
Steel Dynamics Inc-Flat Roll Div inside Dekalb's TRI pounds
Among the 1,603 Primary Metals facilities in this database, Steel Dynamics Inc-Flat Roll Div reports the 84th-largest volume, placing it in the top 5.2% of its sector. This one site accounts for 59.6% of every pound reported in Dekalb. Scale peers outside Indiana include Mueller Co. Plant #4 (south Foundry) and Befesa Zinc US Inc..
County-dominant here means ≥25% of Dekalb's reported pounds (5.2M lbs county total). Shares only print when the site reports ≥1,000 lbs.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Steel Dynamics Inc-Flat Roll Div's total reported releases rose from 578.1 thousand lb in 2022 to 645.6 thousand lb in 2023, based on EPA TRI filings.
- Steel Dynamics Inc-Flat Roll Div's air releases fell from 23.7 thousand lb in 2022 to 16.6 thousand lb in 2023, based on EPA TRI filings.
- Steel Dynamics Inc-Flat Roll Div's off-site transfers rose from 554.2 thousand lb in 2022 to 628.8 thousand lb in 2023, based on EPA TRI filings.
Steel Dynamics Inc-Flat Roll Div Form-R facts
Compare this facility
See how Steel Dynamics Inc-Flat Roll Div stacks up against nearby facilities and the typical reporter.
1702.9× more than the comparison
3.3× 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 Steel Dynamics Inc-Flat Roll Div releases toxic chemicals into the environment. Total: 3.1M lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 5% (616.7K lbs to 645.6K lbs).
Steel Dynamics Inc-Flat Roll Div: annual Form-R pounds
HEAVY site · OFFSITE pathway · TRI years 2019–2023
- 2019
- 2020
- 2021
- 2022
- 2023
What this shows Steel Dynamics Inc-Flat Roll Div year-over-year reported totals (increased by 5% 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: Manganese compounds.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 616.7K lbs | 19 |
| 2020 | 637.4K lbs | 19 |
| 2021 | 632.3K lbs | 19 |
| 2022 | 578.1K lbs | 20 |
| 2023 | 645.6K lbs | 20 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 7 of 20 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Manganese compounds | 1.3M lbs | - |
| Zinc compounds | 1.2M lbs | - |
| Copper compounds | 211.1K lbs | - |
| Nickel compounds | 139.6K lbs | Carcinogen |
| Lead compounds | 75.0K lbs | - |
| Cadmium compounds | 48.8K lbs | Carcinogen |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 41.5K lbs | - |
| Xylene (mixed isomers) | 25.5K lbs | - |
| 1,2,4-Trimethylbenzene | 25.3K lbs | - |
| n-Butyl alcohol | 17.7K lbs | - |
| Naphthalene | 8.5K lbs | Carcinogen |
| Ethylbenzene | 5.7K lbs | Carcinogen |
| Certain glycol ethers | 4.9K lbs | - |
| Methyl isobutyl ketone | 2.4K lbs | Carcinogen |
| Cumene | 1.7K lbs | Carcinogen |
| Toluene | 1.2K lbs | - |
| Mercury compounds | 32 lbs | - |
| Cobalt compounds | 9 lbs | Carcinogen |
| Silver compounds | 2 lbs | - |
| Sodium nitrite | 0 lbs | - |
Steel Dynamics Inc-Flat Roll Div · OFFSITE-pathway site
Nearest TRI Facilities to Steel Dynamics Inc-Flat Roll Div
Closest other reporters in Indiana - including Butler Mill Service Co, Heidtman Steel Products Inc., New Millennium Building Systems LLC, ordered by distance.
Showing 8 of 870 other reporting facilities in Indiana.
Similar Primary Metals Facilities
Other Primary Metals facilities with similar total release volumes (±80%), outside Indiana - e.g. Mueller Co. Plant #4 (south Foundry), Befesa Zinc US Inc., Ati Specialty Alloys & Components LLC.
Compare beyond Indiana
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Steel Dynamics Inc-Flat Roll Div on cumulative reported pounds (3.1M lbs) and distinct chemical count (20). Release-pound peers include Packaging Corp of America, Mueller Co. Plant #4 (south Foundry), Fujifilm Manufacturing USA Inc.. Chemical-count peers include Pixelle Specialty Solutions, Chemours Chambers Works, Fisher Scientific Co. L.L.C.. 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 Steel Dynamics Inc Facilities
Same-parent TRI sites ranked by reported releases - including Steel Dynamics Inc-Engineered Bar Products Div, Steel Dynamics Inc Flat Roll Group Columbus Div, Sdi Lafarga LLC.
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 Manganese compounds, Zinc compounds, Copper compounds, Nickel compounds; nearby reporters include Butler Mill Service Co. Steel Dynamics Inc-Flat Roll Div stamps HEAVY volume · OFFSITE pathway · CARC-LEAN 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 Steel Dynamics Inc-Flat Roll Div TRI extract (HEAVY · OFFSITE · CARC-LEAN · lead Manganese compounds) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Steel Dynamics Inc-Flat Roll Div totals are self-reported EPCRA §313 estimates for Butler, IN, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 331110 · Primary Metals. 59.6% of Dekalb TRI pounds in this extract. Nearest ABS peer: Packaging Corp of America (Δ 4.3K lbs). Pounds ≠ exposure.
Steel Dynamics Inc-Flat Roll Div stamps HEAVY volume · OFFSITE pathway · CARC-LEAN · lead Manganese compounds. 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