EPA TRI Facility · Petroleum
Uss-Clairton Plant
Clairton, PA · Parent: US Steel Corp
- Total releases
- 18.5M lbs
- Chemicals reported
- 32
- Carcinogens
- 6
- Primary pathway
- Water Discharges
WATER Form-R mix
Uss-Clairton Plant: how the 21.7M lbs splits
21.7M lbs across all reported pathways
- Water Discharges 16.0M lbs 74.0%
- Air Releases 5.6M lbs 26.0%
- Off-site Transfers 523 lbs <0.1%
- Land Disposal 0 lbs <0.1%
Uss-Clairton Plant's 21.7M lbs Form-R total is WATER - water discharges is 74.0% of the bar. Next segment: air releases at 26.0%. Leading chemical by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution).
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 WATER pathway CARC-LEAN
Uss-Clairton Plant is an EPA Toxics Release Inventory reporter in Clairton, PA, in the petroleum sector. It reported 3.2M lbs of releases across 32 chemicals in 2024, and 18.5M lbs in total across its 2019-2024 reporting years. That ranks 108 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Pennsylvania's 1,010 reporting TRI sites, pounds #1 is not chemical-count #1. Uss-Clairton Plant is pounds #3 and chemical-count #4 at 18.5M lbs. Max Environmental -- Yukon Facility leads reported pounds (34.8M lbs) at 18 chemicals (chemical-count #24). Keystone Cement Co leads chemical count at 53 chemicals (155.4K lbs, pounds #149). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Sanyo Chemical & Resins LLC; Tech Met Inc.; Synthomer Jefferson Hills LLC; Liberty Pultrusions. Similar-scale Petroleum peers outside Pennsylvania: Phillips 66 Co-Bayway Refinery; Safety-Kleen Systems Inc.; Wood River Refinery; Blanchard Refining Co LLC. Other US Steel Corp sites in this extract: Uss Gary Works; Uss Mon Valley Works - Edgar Thomson Plant; U.S. Steel Granite City Works; US Steel Corp Great Lakes Works. Largest disclosed chemicals by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution); Hydrogen sulfide; Ammonia; Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size).
Uss-Clairton Plant stamps HEAVY volume with a dominant WATER pathway (74.0% water discharges) across 32 chemicals · 6 carcinogen-classified. Cumulative Form-R extract: 18.5M lbs (2019–2024). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Phillips 66 Co-Bayway Refinery and Safety-Kleen Systems Inc..
Uss-Clairton Plant vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
18M lbs Top 1% higher than 100% 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
Uss-Clairton Plant inside Allegheny's TRI pounds
Among the 902 Petroleum facilities in this database, Uss-Clairton Plant reports the 3rd-largest volume, placing it in the top 0.3% of its sector. This one site accounts for 39.5% of every pound reported in Allegheny. Its reported volume is concentrated rather than spread: Nitrate compounds (water dissociable; reportable only when in aqueous solution) alone is 73.8% of the total. Scale peers outside Pennsylvania include Phillips 66 Co-Bayway Refinery and Safety-Kleen Systems Inc..
County-dominant here means ≥25% of Allegheny's reported pounds (46.8M lbs county total). Shares only print when the site reports ≥1,000 lbs.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Uss-Clairton Plant's total reported releases fell from 4.7 million lb in 2022 to 3.8 million lb in 2023, based on EPA TRI filings.
- Uss-Clairton Plant's air releases fell from 1.1 million lb in 2022 to 869.8 thousand lb in 2023, based on EPA TRI filings.
- Uss-Clairton Plant's water releases fell from 3.6 million lb in 2022 to 2.9 million lb in 2023, based on EPA TRI filings.
- Uss-Clairton Plant's off-site transfers rose from 89 lb in 2022 to 104 lb in 2023, based on EPA TRI filings.
Uss-Clairton Plant Form-R facts
Compare this facility
See how Uss-Clairton Plant stacks up against nearby facilities and the typical reporter.
18840.0× more than the comparison
16.0× 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 Uss-Clairton Plant releases toxic chemicals into the environment. Total: 21.7M lbs.
Emissions Trend Summary
From 2019 to 2024, total releases decreased by 3% (3.3M lbs to 3.2M lbs).
Uss-Clairton Plant: annual Form-R pounds
HEAVY site · WATER pathway · TRI years 2019–2024
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
What this shows Uss-Clairton Plant year-over-year reported totals (decreased by 3% from 2019 to 2024). 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: Nitrate compounds (water dissociable; reportable only when in aqueous solution).
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 3.3M lbs | 32 |
| 2020 | 3.0M lbs | 32 |
| 2021 | 3.6M lbs | 32 |
| 2022 | 4.7M lbs | 32 |
| 2023 | 3.8M lbs | 32 |
| 2024 | 3.2M lbs | 32 |
Chemical Releases
Aggregated across all reporting years (2019–2024). 6 of 33 chemicals are carcinogens. Sorted by total release volume.
Uss-Clairton Plant · WATER-pathway site
Nearest TRI Facilities to Uss-Clairton Plant
Closest other reporters in Pennsylvania - including Sanyo Chemical & Resins LLC, Tech Met Inc., Synthomer Jefferson Hills LLC, ordered by distance.
Showing 8 of 1,009 other reporting facilities in Pennsylvania.
Similar Petroleum Facilities
Other Petroleum facilities with similar total release volumes (±80%), outside Pennsylvania - e.g. Phillips 66 Co-Bayway Refinery, Safety-Kleen Systems Inc., Wood River Refinery.
Compare beyond Pennsylvania
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Uss-Clairton Plant on cumulative reported pounds (18.5M lbs) and distinct chemical count (32). Release-pound peers include Cleveland-Cliffs Steel LLC, Union Processing Systems LLC, U.S. Silver - Idaho Inc. Chemical-count peers include Lubrizol Corp Painesvil Le Plant, Helena Industries LLC, Ppg Industries Inc-Oak Creek. 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.
- Cleveland-Cliffs Steel LLC East Chicago, IN · Primary Metals 18.4M lbs reported
- Union Processing Systems LLC Conroe, TX · Hazardous Waste 18.3M lbs reported
- U.S. Silver - Idaho Inc Wallace, ID · Metal Mining 18.8M lbs reported
- Smithfield Fresh Meats Corp - Tar Heel Tar Heel, NC · Food 18.8M lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other US Steel Corp Facilities
Same-parent TRI sites ranked by reported releases - including Uss Gary Works, Uss Mon Valley Works - Edgar Thomson Plant, U.S. Steel Granite City Works.
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 Nitrate compounds (water dissociable; reportable only when in aqueous solution), Hydrogen sulfide, Ammonia, Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size); nearby reporters include Sanyo Chemical & Resins LLC. Uss-Clairton Plant stamps HEAVY volume · WATER 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 Uss-Clairton Plant TRI extract (HEAVY · WATER · CARC-LEAN · lead Nitrate compounds (water dissociable; reportable only when in aqueous solution)) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Uss-Clairton Plant totals are self-reported EPCRA §313 estimates for Clairton, PA, latest year 2023. Form-R rows span 2019–2024 (6 years). NAICS 324199 · Petroleum. 39.5% of Allegheny TRI pounds in this extract. Nearest ABS peer: Cleveland-Cliffs Steel LLC (Δ 55.3K lbs). Pounds ≠ exposure.
Uss-Clairton Plant stamps HEAVY volume · WATER pathway · CARC-LEAN · lead Nitrate compounds (water dissociable; reportable only when in aqueous solution). 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