US Steel Corp
18 facilities · 9 states · 135.7M lbs total releases
According to the EPA Toxics Release Inventory, US Steel Corp is the reported parent of 18 Form R facilities across 9 states, disclosing 135.7M lbs of toxic releases. 20 of 213 reported chemicals carry a carcinogen classification in the TRI extract. The heaviest-reporting state by release volume is Indiana (79.2M lbs). Those TRI figures remain self-reported disclosure pounds for US Steel Corp, including carcinogen-flagged substances, not a measured public-health risk score.
Release-over-release change
What changed for US Steel Corp: EPA TRI 2023 reporting year
Same facilities, both years
-18.7%
13 facilities that filed in 2022 and 2023
Whole inventory
+0.2%
22.2 million lb → 22.2 million lb, every facility that filed
- US Steel Corp's water releases fell from 4.1 million lb in 2022 to 3.3 million lb in 2023, based on EPA TRI filings.
- US Steel Corp's air releases fell from 1.7 million lb in 2022 to 1.5 million lb in 2023, based on EPA TRI filings.
- US Steel Corp's off-site transfers rose from 3.6 million lb in 2022 to 3.9 million lb in 2023, based on EPA TRI filings.
- US Steel Corp's land releases rose from 12.7 million lb in 2022 to 13.4 million lb in 2023, based on EPA TRI filings.
TRI parent disclosure trail
Read US Steel Corp from filing to facility
Largest Form R sites under this parent: Uss Gary Works; Uss Mon Valley Works - Edgar Thomson Plant; Uss-Clairton Plant; U.S. Steel Granite City Works. Neighbor parents on the disclosure ladder: Cleveland-Cliffs Inc; Sabic US Holdings LP. Largest disclosed chemicals by pounds: Manganese And Manganese Compounds; Zinc compounds; Nitrate compounds (water dissociable; reportable only when in aqueous solution); Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region); Ammonia. Heaviest-reporting states in this extract: Indiana; Pennsylvania; Illinois. Industry labels on the parent rollup: Primary Metals; Petroleum; Fabricated Metals. Start from those named sites and neighbors rather than a generic parent blurb; pounds stay disclosure, not risk.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files Toxics Release Inventory (TRI) · August 2026
Largest Form R sites under this parent: Uss Gary Works; Uss Mon Valley Works - Edgar Thomson Plant; Uss-Clairton Plant; U.S. Steel Granite City Works. Neighbor parents on the disclosure ladder: Cleveland-Cliffs Inc; Sabic US Holdings LP. Largest disclosed chemicals by pounds: Manganese And Manganese Compounds; Zinc compounds; Nitrate compounds (water dissociable; reportable only when in aqueous solution); Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region); Ammonia. Heaviest-reporting states in this extract: Indiana; Pennsylvania; Illinois. Industry labels on the parent rollup: Primary Metals; Petroleum; Fabricated Metals.
Among slug-merged TRI parents in this extract, US Steel Corp sits near the top of the release list (rank #17 of 4,988). US Steel Corp spans 9 states in this extract, placing it among the broader national TRI parent footprints. US Steel Corp's disclosed pounds are spread across 18 facilities, no single site dominates the parent total in this extract.
Parent aggregation for US Steel Corp follows facility-reported names. Compare the named neighbors (Cleveland-Cliffs Inc; Sabic US Holdings LP) before treating rank as a hazard score; TRI stays self-reported and unweighted by toxicity.
Where US Steel Corp sits among TRI parents
US Steel Corp sits on a disclosure ladder beside Cleveland-Cliffs Inc and Sabic US Holdings LP. Open those parents for a different facility count, state span, and chemical mix.
Lower disclosed volume
- Cleveland-Cliffs Inc · rank #18 · 131.7M lbs
- Sabic US Holdings LP · rank #19 · 27.7M lbs
Largest chemicals disclosed by US Steel Corp
Manganese And Manganese Compounds; Zinc compounds; Nitrate compounds (water dissociable; reportable only when in aqueous solution); Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region); Ammonia lead the Form R pound rollup for this parent, including filings such as Uss Gary Works. Pound totals, not toxicity-weighted risk.
| Chemical | Disclosed lbs |
|---|---|
| Manganese And Manganese Compounds | 52.2M lbs |
| Zinc compounds | 50.5M lbs |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 18.1M lbs |
| Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) | 2.8M lbs |
| Ammonia | 2.7M lbs |
Where does this company operate?
| State | Facilities | Total Releases |
|---|---|---|
| Indiana | 3 | 79.2M lbs |
| Pennsylvania | 4 | 40.6M lbs |
| Illinois | 1 | 9.7M lbs |
| Michigan | 2 | 5.7M lbs |
| Arkansas | 2 | 196.8K lbs |
| Alabama | 1 | 181.5K lbs |
| California | 1 | 117.7K lbs |
| Ohio | 1 | 33.2K lbs |
| Texas | 3 | 17.2K lbs |
Facilities (18)
| Facility | Releases |
|---|---|
| Uss Gary Works Gary, IN | 77.4M lbs |
| Uss Mon Valley Works - Edgar Thomson Plant Braddock, PA | 21.4M lbs |
| Uss-Clairton Plant Clairton, PA | 18.5M lbs |
| U.S. Steel Granite City Works Granite City, IL | 9.7M lbs |
| US Steel Corp Great Lakes Works Ecorse, MI | 5.6M lbs |
| US Steel Corp Midwest Plant Portage, IN | 1.7M lbs |
| Uss Mon Valley Works - Irvin Plant West Mifflin, PA | 747.4K lbs |
| Big River Steel LLC Osceola, AR | 190.8K lbs |
| US Steel Corp-Fairfield Works Fairfield, AL | 181.5K lbs |
| Uss-Upi LLC Pittsburg, CA | 117.7K lbs |
| Uss East Chicago Tin East Chicago, IN | 67.7K lbs |
| US Steel Corp Tubular Div Lorain Tubular Lorain, OH | 33.2K lbs |
| Lone Star Tubular Operations Lone Star, TX | 10.8K lbs |
| Great Lakes Works Egl Dearborn Dearborn, MI | 8.5K lbs |
| Offshore Operations Houston Houston, TX | 6.4K lbs |
| Wheeling Machine Pine Bluff Pine Bluff, AR | 6.1K lbs |
| US Steel Fairless Hills Works Fairless Hills, PA | 863 lbs |
| Wheeling Machine Products Hughes Springs Hughes Springs, TX | 38 lbs |
Frequently Asked Questions
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Compare beyond the release ladder
Nationwide peers by disclosed pounds & facility count
Cross-portfolio TRI parents nearest US Steel Corp on total disclosed release pounds (135.7M lbs) and reporting facility count (18). Release-volume peers include US Department of Defense, Ineos US I Inc, Republic Services Inc. Facility-count peers include American Bath Group LLC, Amsted Industries Inc, Enlink Midstream Operating LP. Neighborhoods are forced disjoint so each axis surfaces a different set of parents.
Similar disclosed release pounds
Nearest parents (≥3 facilities, ≥10k lbs) by absolute TRI disclosed pounds, not rank-adjacent ladder neighbors.
Similar facility count
Nearest parents by reporting-site count (deduped against the release-pound neighborhood).
About This Data
EPA TRI parent totals cover all media. This extract's heaviest states for the parent are Indiana, Pennsylvania, Illinois; facility-reported names can vary across subsidiaries.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files
What to do with US Steel Corp's TRI parent record
From US Steel Corp, open Uss Gary Works or compare against Cleveland-Cliffs Inc rather than reading rank alone.
- Open the largest Form R site for US Steel Corp (Uss Gary Works in IN). Largest facility
- Compare against Cleveland-Cliffs Inc, the next-lower disclosed-volume parent. Lower-volume parent
- Browse the full parent release ranking to see where US Steel Corp sits among all slug-merged TRI parents. All parent companies
Rank and peers (Cleveland-Cliffs Inc, Sabic US Holdings LP) are disclosure volume only, not toxicity-weighted risk or enforcement status.
Use and verify this record
US Steel Corp's record groups disclosed TRI parent-company filings so readers can compare reporting context without treating the total as a measure of risk.
Company release figures are computed directly from EPA Toxic Release Inventory data; source names and the record-linking method are documented in the methodology.
Primary sources
- EPA Toxics Release Inventory Basic Data Files - annual facility-level chemical-release disclosures
PlainEnviro renders public EPA records directly from its data pipeline; no figure on this page is typed in by an editor. See the editorial standards and corrections policy for how source changes and reported errors are handled.