EPA TRI Facility · Primary Metals
Steel Dynamics Inc Structural & Rail Div
Columbia City, IN · Parent: Steel Dynamics Inc
- Total releases
- 314.6K lbs
- Chemicals reported
- 14
- Carcinogens
- 2
- Primary pathway
- Off-site Transfers
MIXED Form-R mix
Steel Dynamics Inc Structural & Rail Div: how the 314.6K lbs splits
314.6K lbs across all reported pathways
- Off-site Transfers 215.9K lbs 68.6%
- Air Releases 92.6K lbs 29.4%
- Water Discharges 6.2K lbs 2.0%
- Land Disposal 0 lbs <0.1%
Steel Dynamics Inc Structural & Rail Div's 314.6K lbs Form-R total is MIXED - off-site transfers is 68.6% of the bar. Next segment: air releases at 29.4%. Leading chemical by pounds: Zinc 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.
MID volume MIXED pathway CARC-LEAN
Steel Dynamics Inc Structural & Rail Div is an EPA Toxics Release Inventory reporter in Columbia City, IN, in the primary metals sector. It reported 19.2K lbs of releases across 8 chemicals in 2023, and 314.6K lbs in total across its 2019-2023 reporting years. That ranks 2,527 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 Structural & Rail Div is pounds #130 and chemical-count #45 at 314.6K 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 fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Chromasource Inc; Columbia City Mill Services; Undersea Sensor Systems Inc; Reelcraft Industries Inc. Similar-scale Primary Metals peers outside Indiana: Asc Engineered Solutions - Fka Anvil International; Aurora Metals Div LLC; Nucor Steel Florida Inc.; Essex Solutions USA LLC. Other Steel Dynamics Inc sites in this extract: Steel Dynamics Inc-Flat Roll Div; Steel Dynamics Inc-Engineered Bar Products Div; Steel Dynamics Inc Flat Roll Group Columbus Div; Sdi Lafarga LLC. Largest disclosed chemicals by pounds: Zinc compounds; Manganese And Manganese Compounds; Manganese compounds; Lead compounds.
Steel Dynamics Inc Structural & Rail Div is a MID · MIXED-pathway Form-R site in Columbia City, IN: 314.6K lbs across 14 chemicals (2 carcinogen-classified, CARC-LEAN). No single media clears 70% of the bar (lead segment off-site transfers at 68.6%). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Asc Engineered Solutions - Fka Anvil International and Aurora Metals Div LLC.
Steel Dynamics Inc Structural & Rail Div vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
315K lbs Top 10% higher than 90% 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 Structural & Rail Div inside Whitley's TRI pounds
Among the 1,603 Primary Metals facilities in this database, Steel Dynamics Inc Structural & Rail Div reports the 257th-largest volume, placing it in the top 16% of its sector. This one site accounts for 64.4% of every pound reported in Whitley. Scale peers outside Indiana include Asc Engineered Solutions - Fka Anvil International and Aurora Metals Div LLC.
County-dominant here means ≥25% of Whitley's reported pounds (488.8K 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 Structural & Rail Div's total reported releases fell from 27.0 thousand lb in 2022 to 19.2 thousand lb in 2023, based on EPA TRI filings.
- Steel Dynamics Inc Structural & Rail Div's water releases rose from 389 lb in 2022 to 1.4 thousand lb in 2023, based on EPA TRI filings.
- Steel Dynamics Inc Structural & Rail Div's off-site transfers fell from 11.4 thousand lb in 2022 to 3.1 thousand lb in 2023, based on EPA TRI filings.
- Steel Dynamics Inc Structural & Rail Div's air releases fell from 15.2 thousand lb in 2022 to 14.8 thousand lb in 2023, based on EPA TRI filings.
Steel Dynamics Inc Structural & Rail Div Form-R facts
Compare this facility
See how Steel Dynamics Inc Structural & Rail Div stacks up against nearby facilities and the typical reporter.
11.0× more than the comparison
2.3× 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 Structural & Rail Div releases toxic chemicals into the environment. Total: 314.6K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 89% (176.5K lbs to 19.2K lbs).
Steel Dynamics Inc Structural & Rail Div: annual Form-R pounds
MID site · MIXED pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Steel Dynamics Inc Structural & Rail Div year-over-year reported totals (decreased by 89% 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: Zinc compounds.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 176.5K lbs | 8 |
| 2020 | 59.8K lbs | 8 |
| 2021 | 32.1K lbs | 8 |
| 2022 | 27.0K lbs | 8 |
| 2023 | 19.2K lbs | 8 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 2 of 14 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Zinc compounds | 156.5K lbs | - |
| Manganese And Manganese Compounds | 82.3K lbs | - |
| Manganese compounds | 43.3K lbs | - |
| Lead compounds | 7.1K lbs | - |
| Nickel compounds | 6.4K lbs | Carcinogen |
| Copper And Copper Compounds | 5.2K lbs | - |
| Copper compounds | 4.8K lbs | - |
| Lead And Lead Compounds | 3.9K lbs | - |
| Nickel And Nickel Compounds | 2.2K lbs | Carcinogen |
| Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) | 1.5K lbs | - |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 974 lbs | - |
| Mercury compounds | 410 lbs | - |
| Mercury And Mercury Compounds | 61 lbs | - |
| Sodium nitrite | 0 lbs | - |
Steel Dynamics Inc Structural & Rail Div in Whitley
Nearest TRI Facilities to Steel Dynamics Inc Structural & Rail Div
Closest other reporters in Indiana - including Chromasource Inc, Columbia City Mill Services, Undersea Sensor Systems Inc, 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. Asc Engineered Solutions - Fka Anvil International, Aurora Metals Div LLC, Nucor Steel Florida Inc..
Compare beyond Indiana
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Steel Dynamics Inc Structural & Rail Div on cumulative reported pounds (314.6K lbs) and distinct chemical count (14). Release-pound peers include Duracell, Polynt Composites USA Inc., Carmeuse Lime & Stone Maysville Facility. Chemical-count peers include Shell New Haven Terminal, Chambers Cogeneration L.P., Avantor Performance Materials. 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.
- Duracell Cleveland, TN · Electrical Equipment 314.7K lbs reported
- Polynt Composites USA Inc. Chatham, VA · Chemicals 314.8K lbs reported
- Carmeuse Lime & Stone Maysville Facility Maysville, KY · Nonmetallic Mineral Product 315.2K lbs reported
- Novelis Corp Warren, OH · Fabricated Metals 315.2K lbs reported
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-Flat Roll Div, Steel Dynamics Inc-Engineered Bar Products Div, Steel Dynamics Inc Flat Roll Group Columbus Div.
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 Zinc compounds, Manganese And Manganese Compounds, Manganese compounds, Lead compounds; nearby reporters include Chromasource Inc. Steel Dynamics Inc Structural & Rail Div stamps MID volume · MIXED 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 Structural & Rail Div TRI extract (MID · MIXED · CARC-LEAN · lead Zinc compounds) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Steel Dynamics Inc Structural & Rail Div totals are self-reported EPCRA §313 estimates for Columbia City, IN, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 331110 · Primary Metals. 64.4% of Whitley TRI pounds in this extract. Nearest ABS peer: Primary Products Ingredients Americas LLC (Δ 24 lbs). Pounds ≠ exposure.
Steel Dynamics Inc Structural & Rail Div stamps MID · MIXED pathway (off-site transfers leads at 68.6%). Pipeline-rendered EPA Form-R only - no editor-typed pounds. 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