EPA TRI Facility · Primary Metals
Skyline Steel Llc-Iuka
Iuka, MS · Parent: Nucor Corp
- Total releases
- 122.6K lbs
- Chemicals reported
- 3
- Carcinogens
- 2
- Primary pathway
- Off-site Transfers
OFFSITE Form-R mix
Skyline Steel Llc-Iuka: how the 122.6K lbs splits
122.6K lbs across all reported pathways
- Off-site Transfers 122.0K lbs 99.5%
- Air Releases 624 lbs 0.5%
- Land Disposal 0 lbs <0.1%
Skyline Steel Llc-Iuka's 122.6K 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: Manganese.
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 OFFSITE pathway TRACE-CARC
Skyline Steel Llc-Iuka is an EPA Toxics Release Inventory reporter in Iuka, MS, in the primary metals sector. It reported 44.0K lbs of releases across 2 chemicals in 2023, and 122.6K lbs in total across its 2019-2023 reporting years. That ranks 4,145 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Mississippi's 328 reporting TRI sites, pounds #1 is not chemical-count #1. Skyline Steel Llc-Iuka is pounds #85 and chemical-count #118 at 122.6K lbs. Tronox LLC leads reported pounds (64.0M lbs) at 17 chemicals (chemical-count #12). Chevron Products Co Pascagoula Refinery leads chemical count at 46 chemicals (7.4M lbs, pounds #9). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Samuel Son & Co (usa) Inc.; Yellow Creek Coating Services; Psp Industries - Iuka; Water Way Inc. Similar-scale Primary Metals peers outside Mississippi: Dw-National Standard-Stillwater LLC; Fritz Winter; Steel Dust Recycling LLC; American Castings LLC. Other Nucor Corp sites in this extract: Nucor Steel-Berkeley; Nucor Steel Tuscaloosa Inc; Nucor Steel; Nucor Steel Hertford County. Largest disclosed chemicals by pounds: Manganese; Nickel; Lead.
Skyline Steel Llc-Iuka stamps MID volume with a dominant OFFSITE pathway (99.5% off-site transfers) across 3 chemicals · 2 carcinogen-classified. Cumulative Form-R extract: 122.6K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Dw-National Standard-Stillwater LLC and Fritz Winter.
Skyline Steel Llc-Iuka vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
123K lbs Top 16% higher than 84% 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
Skyline Steel Llc-Iuka: Manganese-led volume
Among the 1,603 Primary Metals facilities in this database, Skyline Steel Llc-Iuka reports the 378th-largest volume, placing it in the top 23.6% of its sector. Its reported volume is concentrated rather than spread: Manganese alone is 99.9% of the total. Scale peers outside Mississippi include Dw-National Standard-Stillwater LLC and Fritz Winter.
Concentrated means ≥60% of Skyline Steel Llc-Iuka's pounds in one chemical - here Manganese at 99.9%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Skyline Steel Llc-Iuka's total reported releases rose from 34.9 thousand lb in 2022 to 44.0 thousand lb in 2023, based on EPA TRI filings.
- Skyline Steel Llc-Iuka's off-site transfers rose from 34.6 thousand lb in 2022 to 43.7 thousand lb in 2023, based on EPA TRI filings.
- Skyline Steel Llc-Iuka's air releases rose from 281 lb in 2022 to 303 lb in 2023, based on EPA TRI filings.
Skyline Steel Llc-Iuka Form-R facts
Compare this facility
See how Skyline Steel Llc-Iuka stacks up against nearby facilities and the typical reporter.
111.2× more than the comparison
50% 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 Skyline Steel Llc-Iuka releases toxic chemicals into the environment. Total: 122.6K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 170% (16.3K lbs to 44.0K lbs).
Skyline Steel Llc-Iuka: annual Form-R pounds
MID site · OFFSITE pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Skyline Steel Llc-Iuka year-over-year reported totals (increased by 170% 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.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 16.3K lbs | 3 |
| 2020 | 13.2K lbs | 3 |
| 2021 | 14.2K lbs | 3 |
| 2022 | 34.9K lbs | 2 |
| 2023 | 44.0K lbs | 2 |
Skyline Steel Llc-Iuka · OFFSITE-pathway site
Nearest TRI Facilities to Skyline Steel Llc-Iuka
Closest other reporters in Mississippi - including Samuel Son & Co (usa) Inc., Yellow Creek Coating Services, Psp Industries - Iuka, ordered by distance.
Showing 8 of 327 other reporting facilities in Mississippi.
Similar Primary Metals Facilities
Other Primary Metals facilities with similar total release volumes (±80%), outside Mississippi - e.g. Dw-National Standard-Stillwater LLC, Fritz Winter, Steel Dust Recycling LLC.
Compare beyond Mississippi
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Skyline Steel Llc-Iuka on cumulative reported pounds (122.6K lbs) and distinct chemical count (3). Release-pound peers include Chambers Cogeneration L.P., Lockheed Martin Rms, Broadwind Towers & Heavy Fabrications. 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.
- Chambers Cogeneration L.P. Penns Grove, NJ · Electric Utilities 122.6K lbs reported
- Lockheed Martin Rms Owego, NY · Computers and Electronic Products 122.5K lbs reported
- Broadwind Towers & Heavy Fabrications Manitowoc, WI · Fabricated Metals 122.5K lbs reported
- White Wave Foods City Of Industry, CA · Food 122.4K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Nucor Corp Facilities
Same-parent TRI sites ranked by reported releases - including Nucor Steel-Berkeley, Nucor Steel Tuscaloosa Inc, Nucor Steel.
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, Nickel, Lead; nearby reporters include Samuel Son & Co (usa) Inc.. Skyline Steel Llc-Iuka stamps MID volume · OFFSITE pathway · TRACE-CARC 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 Skyline Steel Llc-Iuka TRI extract (MID · OFFSITE · TRACE-CARC · lead Manganese) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Skyline Steel Llc-Iuka totals are self-reported EPCRA §313 estimates for Iuka, MS, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 331210 · Primary Metals. 5.7% of Tishomingo TRI pounds in this extract. Nearest ABS peer: Chambers Cogeneration L.P. (Δ 12 lbs). Pounds ≠ exposure.
Skyline Steel Llc-Iuka stamps MID volume · OFFSITE pathway · TRACE-CARC · lead Manganese. 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