Steel Dynamics Heartland LLC
Total reported releases 19k lb rose by an order of magnitude year over year (+2989%). Total releases concentrations are up 77% since 2010.
455 W INDUSTRIAL DR, Terre Haute, Indiana · 331221 · Primary Metals · operated by Steel Dynamics INC
Notable Signals
No notable signals at this facility for the current reporting year. See chemicals and equity context below for the full picture.
What This Facility Releases
Chromium compounds (except for chromite ore mined in the Transvaal Region)
Chromium compounds (except for chromite ore mined in the Transvaal Region) concentrations have fallen 36% since 2012.
1,2,4-Trimethylbenzene
1,2,4-Trimethylbenzene volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Certain glycol ethers
Certain glycol ethers volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations have more than halved since 2010.
n-Butyl alcohol
n-Butyl alcohol volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Xylene (mixed isomers)
Xylene (mixed isomers) volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Naphthalene
Naphthalene volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Cumene
Cumene volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Who Lives Next To This Facility
Within 3 miles of this facility (4 Census block groups, population-weighted demographics): a population of 4,777. Why we surface this →
Low-income
People of color
Under age 5
Over age 64
Source: Census ACS 2018-2022 block-group demographics, population-weighted across the 3-mile buffer around this facility (from USEPA-clone/EJAM-open blockgroupstats). Indicator-level percentile and EJ-disparity scores are surfaced on the county page and the state page — they describe wider regional exposure burdens, not effects attributable to a single facility.
Source. EPA Toxics Release Inventory · retrieved 2026-05-07. Reporting year 2024. TRI is a federal public-domain dataset under 17 USC §105.
What this is not. TRI quantifies releases reported by the facility under EPCRA §313 — not ambient air or water concentrations measured at receptors. We do not attribute individual health outcomes to specific facilities; that exceeds what the data can support.