EPA TRI Facility · Primary Metals
Century Aluminum of Kentucky
Hawesville, KY · Parent: Century Aluminum Co
- Total releases
- 3.0M lbs
- Chemicals reported
- 13
- Carcinogens
- 5
- Primary pathway
- Air Releases
AIR Form-R mix
Century Aluminum of Kentucky: how the 3.0M lbs splits
3.0M lbs across all reported pathways
- Air Releases 3.0M lbs 97.3%
- Off-site Transfers 78.5K lbs 2.6%
- Land Disposal 3.6K lbs 0.1%
Century Aluminum of Kentucky's 3.0M lbs Form-R total is AIR - air releases is 97.3% of the bar. Next segment: off-site transfers at 2.6%. Leading chemical by pounds: Carbonyl sulfide.
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 AIR pathway CARC-LEAN
Century Aluminum of Kentucky is an EPA Toxics Release Inventory reporter in Hawesville, KY, in the primary metals sector. It reported 509.6K lbs of releases across 9 chemicals in 2022, and 3.0M lbs in total across its 2019-2022 reporting years. That ranks 631 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Kentucky's 422 reporting TRI sites, pounds #1 is not chemical-count #1. Century Aluminum of Kentucky is pounds #17 and chemical-count #41 at 3.0M lbs. North American Stainless leads reported pounds (35.2M lbs) at 15 chemicals (chemical-count #36). Safety-Kleen Systems Inc. leads chemical count at 50 chemicals (725.8K lbs, pounds #50). Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Precoat Metals; Southwire Co Kentucky Plant; Commonwealth Rolled Products Inc; Domtar Paper Co LLC Hawesville Mill. Similar-scale Primary Metals peers outside Kentucky: Magnitude 7 Metals LLC; Ati Specialty Alloys & Components LLC; Alcoa USA Corp.; Steel Dynamics Inc-Flat Roll Div. Other Century Aluminum Co sites in this extract: Century Aluminum Sebree LLC; Century Aluminum of South Carolina. Largest disclosed chemicals by pounds: Carbonyl sulfide; Hydrogen fluoride; Naphthalene; Polycyclic aromatic compounds.
Century Aluminum of Kentucky stamps HEAVY volume with a dominant AIR pathway (97.3% air releases) across 13 chemicals · 5 carcinogen-classified. Cumulative Form-R extract: 3.0M lbs (2019–2022). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Magnitude 7 Metals LLC and Ati Specialty Alloys & Components LLC.
Century Aluminum of Kentucky vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
3.0M 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
Century Aluminum of Kentucky inside Hancock's TRI pounds
Among the 1,603 Primary Metals facilities in this database, Century Aluminum of Kentucky reports the 87th-largest volume, placing it in the top 5.4% of its sector. This one site accounts for 39.3% of every pound reported in Hancock. Scale peers outside Kentucky include Magnitude 7 Metals LLC and Ati Specialty Alloys & Components LLC.
County-dominant here means ≥25% of Hancock's reported pounds (7.7M lbs county total). Shares only print when the site reports ≥1,000 lbs.
Century Aluminum of Kentucky Form-R facts
Compare this facility
See how Century Aluminum of Kentucky stacks up against nearby facilities and the typical reporter.
49.4× more than the comparison
About the same as 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 Century Aluminum of Kentucky releases toxic chemicals into the environment. Total: 3.0M lbs.
Emissions Trend Summary
From 2019 to 2022, total releases decreased by 20% (639.5K lbs to 509.6K lbs).
Century Aluminum of Kentucky: annual Form-R pounds
HEAVY site · AIR pathway · TRI years 2019–2022
- 2019
- 2020
- 2021
- 2022
What this shows Century Aluminum of Kentucky year-over-year reported totals (decreased by 20% from 2019 to 2022). 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: Carbonyl sulfide.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 639.5K lbs | 7 |
| 2020 | 882.6K lbs | 9 |
| 2021 | 1.0M lbs | 9 |
| 2022 | 509.6K lbs | 9 |
Chemical Releases
Aggregated across all reporting years (2019–2022). 5 of 13 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Carbonyl sulfide | 1.8M lbs | - |
| Hydrogen fluoride | 766.8K lbs | - |
| Naphthalene | 362.9K lbs | Carcinogen |
| Polycyclic aromatic compounds | 93.0K lbs | Carcinogen |
| Nickel And Nickel Compounds | 10.4K lbs | Carcinogen |
| Benzo[g,h,i]perylene | 7.5K lbs | - |
| Cyanide compounds | 7.3K lbs | - |
| Nickel | 6.2K lbs | Carcinogen |
| Lead compounds | 5.4K lbs | - |
| Chromium | 4.5K lbs | - |
| Lead | 546 lbs | Carcinogen |
| Mercury compounds | 166 lbs | - |
| Toluene | 17 lbs | - |
Century Aluminum of Kentucky · AIR-pathway site
Nearest TRI Facilities to Century Aluminum of Kentucky
Closest other reporters in Kentucky - including Precoat Metals, Southwire Co Kentucky Plant, Commonwealth Rolled Products Inc, ordered by distance.
Showing 8 of 421 other reporting facilities in Kentucky.
Similar Primary Metals Facilities
Other Primary Metals facilities with similar total release volumes (±80%), outside Kentucky - e.g. Magnitude 7 Metals LLC, Ati Specialty Alloys & Components LLC, Alcoa USA Corp..
Compare beyond Kentucky
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Century Aluminum of Kentucky on cumulative reported pounds (3.0M lbs) and distinct chemical count (13). Release-pound peers include Laraway Recycling & Disposal Facility, Tesla Inc, Cargill Inc. Chemical-count peers include Puerto Rico Energy LLC - Guaynabo 2 Terminal, Global Companies LLC, Shell Providence Terminal. 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).
- Puerto Rico Energy LLC - Guaynabo 2 Terminal Guaynabo, PR · Petroleum Bulk Terminals 13 chemicals
- Global Companies LLC Revere, MA · Petroleum Bulk Terminals 13 chemicals
- Shell Providence Terminal Providence, RI · Petroleum Bulk Terminals 13 chemicals
- Sig Sauer Inc Newington, NH · Fabricated Metals 13 chemicals
Other Century Aluminum Co Facilities
Same-parent TRI sites ranked by reported releases - including Century Aluminum Sebree LLC, Century Aluminum of South Carolina.
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 Carbonyl sulfide, Hydrogen fluoride, Naphthalene, Polycyclic aromatic compounds; nearby reporters include Precoat Metals. Century Aluminum of Kentucky stamps HEAVY volume · AIR 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 Century Aluminum of Kentucky TRI extract (HEAVY · AIR · CARC-LEAN · lead Carbonyl sulfide) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Century Aluminum of Kentucky totals are self-reported EPCRA §313 estimates for Hawesville, KY, latest year 2022. Form-R rows span 2019–2022 (4 years). NAICS 331313 · Primary Metals. 39.3% of Hancock TRI pounds in this extract. Nearest ABS peer: Laraway Recycling & Disposal Facility (Δ 54 lbs). Pounds ≠ exposure.
Century Aluminum of Kentucky stamps HEAVY volume · AIR pathway · CARC-LEAN · lead Carbonyl sulfide. 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