EPA TRI Facility · Primary Metals
Nucor Steel Seattle Inc
Seattle, WA · Parent: Nucor Corp
- Total releases
- 2.4M lbs
- Chemicals reported
- 14
- Carcinogens
- 4
- Primary pathway
- Off-site Transfers
OFFSITE Form-R mix
Nucor Steel Seattle Inc: how the 2.4M lbs splits
2.4M lbs across all reported pathways
- Off-site Transfers 2.4M lbs 99.4%
- Air Releases 15.0K lbs 0.6%
- Water Discharges 28 lbs <0.1%
- Land Disposal 0 lbs <0.1%
Nucor Steel Seattle Inc's 2.4M lbs Form-R total is OFFSITE - off-site transfers is 99.4% of the bar. Next segment: air releases at 0.6%. Leading chemical by pounds: Manganese And Manganese 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.
HEAVY volume OFFSITE pathway TRACE-CARC
Nucor Steel Seattle Inc is an EPA Toxics Release Inventory reporter in Seattle, WA, in the primary metals sector. It reported 507.2K lbs of releases across 9 chemicals in 2023, and 2.4M lbs in total across its 2019-2023 reporting years. That ranks 771 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Washington's 311 reporting TRI sites, pounds #1 is not chemical-count #1. Nucor Steel Seattle Inc is pounds #10 and chemical-count #18 at 2.4M lbs. Lamb Weston Inc Richland Facility leads reported pounds (13.1M lbs) at 3 chemicals (chemical-count #106). Hf Sinclair Puget Sound Refining LLC leads chemical count at 46 chemicals (711.7K lbs, pounds #26). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Young Corp Meltec Div; Ash Grove Cement Co.; Lafarge Na Inc Seattle; Shell Seattle Distribution Terminal. Similar-scale Primary Metals peers outside Washington: Nucor Steel-Darlington; Kaiser Aluminum Warrick LLC; Real Alloy Recycling LLC; Charlotte Pipe & Foundry Co. 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 And Manganese Compounds; Manganese compounds; Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region); Zinc compounds.
Nucor Steel Seattle Inc stamps HEAVY volume with a dominant OFFSITE pathway (99.4% off-site transfers) across 14 chemicals · 4 carcinogen-classified. Cumulative Form-R extract: 2.4M lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Nucor Steel-Darlington and Kaiser Aluminum Warrick LLC.
Nucor Steel Seattle Inc vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
2.4M lbs Top 3% higher than 97% 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
Nucor Steel Seattle Inc inside King's TRI pounds
Among the 1,603 Primary Metals facilities in this database, Nucor Steel Seattle Inc reports the 97th-largest volume, placing it in the top 6.1% of its sector. This one site accounts for 28.7% of every pound reported in King. Scale peers outside Washington include Nucor Steel-Darlington and Kaiser Aluminum Warrick LLC.
County-dominant here means ≥25% of King's reported pounds (8.2M lbs county total). Shares only print when the site reports ≥1,000 lbs.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Nucor Steel Seattle Inc's total reported releases rose from 444.5 thousand lb in 2022 to 507.2 thousand lb in 2023, based on EPA TRI filings.
- Nucor Steel Seattle Inc's air releases rose from 2.5 thousand lb in 2022 to 3.1 thousand lb in 2023, based on EPA TRI filings.
- Nucor Steel Seattle Inc's off-site transfers rose from 441.9 thousand lb in 2022 to 504.1 thousand lb in 2023, based on EPA TRI filings.
Nucor Steel Seattle Inc Form-R facts
Compare this facility
See how Nucor Steel Seattle Inc stacks up against nearby facilities and the typical reporter.
171.0× more than the comparison
4.7× 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 Nucor Steel Seattle Inc releases toxic chemicals into the environment. Total: 2.4M lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 10% (563.6K lbs to 507.2K lbs).
Nucor Steel Seattle Inc: annual Form-R pounds
HEAVY site · OFFSITE pathway · TRI years 2019–2023
- 2019
- 2020 0
- 2021 0
- 2022 0
- 2023
What this shows Nucor Steel Seattle Inc year-over-year reported totals (decreased by 10% 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 And Manganese Compounds.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 563.6K lbs | 8 |
| 2020 | 380.5K lbs | 9 |
| 2021 | 470.6K lbs | 8 |
| 2022 | 444.5K lbs | 9 |
| 2023 | 507.2K lbs | 9 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 4 of 14 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Manganese And Manganese Compounds | 1.1M lbs | - |
| Manganese compounds | 714.2K lbs | - |
| Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) | 236.4K lbs | - |
| Zinc compounds | 171.3K lbs | - |
| Lead And Lead Compounds | 64.6K lbs | - |
| Copper compounds | 29.5K lbs | - |
| Copper And Copper Compounds | 27.3K lbs | - |
| Nickel compounds | 10.6K lbs | Carcinogen |
| Nickel And Nickel Compounds | 9.2K lbs | Carcinogen |
| Lead compounds | 3.8K lbs | - |
| Polycyclic aromatic compounds | 1.8K lbs | Carcinogen |
| Mercury And Mercury Compounds | 368 lbs | - |
| Mercury compounds | 234 lbs | - |
| Dioxin and dioxin-like compounds | 0 lbs | Carcinogen |
Nucor Steel Seattle Inc · OFFSITE-pathway site
Nearest TRI Facilities to Nucor Steel Seattle Inc
Closest other reporters in Washington - including Young Corp Meltec Div, Ash Grove Cement Co., Lafarge Na Inc Seattle, ordered by distance.
Showing 8 of 310 other reporting facilities in Washington.
Similar Primary Metals Facilities
Other Primary Metals facilities with similar total release volumes (±80%), outside Washington - e.g. Nucor Steel-Darlington, Kaiser Aluminum Warrick LLC, Real Alloy Recycling LLC.
Compare beyond Washington
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Nucor Steel Seattle Inc on cumulative reported pounds (2.4M lbs) and distinct chemical count (14). Release-pound peers include Duke Energy Florida Llc-Crystal River Power Plant, Lanxess - West Plant, Chevron Phillips Chemical Co LP Sweeny Complex. 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.
- Duke Energy Florida Llc-Crystal River Power Plant Crystal River, FL · Electric Utilities 2.4M lbs reported
- Lanxess - West Plant Magnolia, AR · Chemicals 2.4M lbs reported
- Chevron Phillips Chemical Co LP Sweeny Complex Sweeny, TX · Chemicals 2.4M lbs reported
- Amalgamated Sugar Co Twin Falls, ID · Food 2.4M 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 And Manganese Compounds, Manganese compounds, Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region), Zinc compounds; nearby reporters include Young Corp Meltec Div. Nucor Steel Seattle Inc stamps HEAVY 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 Nucor Steel Seattle Inc TRI extract (HEAVY · OFFSITE · TRACE-CARC · lead Manganese And Manganese Compounds) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Nucor Steel Seattle Inc totals are self-reported EPCRA §313 estimates for Seattle, WA, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 331110 · Primary Metals. 28.7% of King TRI pounds in this extract. Nearest ABS peer: Duke Energy Florida Llc-Crystal River Power Plant (Δ 88 lbs). Pounds ≠ exposure.
Nucor Steel Seattle Inc stamps HEAVY volume · OFFSITE pathway · TRACE-CARC · lead Manganese And Manganese Compounds. 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