Total reported releases 181k lb rose by an order of magnitude year over year (+1132%). Total releases concentrations have more than doubled since 2022.
8534 HIGHWAY 89, Sinton, Texas · 331110 · Primary Metals · operated by Steel Dynamics INC
Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) releases at Steel Dynamics Southwest Sinton Div rose from 10k lb to 26k lb (2.7×) between 2023 and 2024.
Nickel And Nickel Compounds volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) concentrations have more than doubled since 2022.
Lead And Lead Compounds concentrations have more than doubled since 2022.
Manganese And Manganese Compounds concentrations have more than halved since 2022.
n-Butyl alcohol concentrations have fallen 22% since 2022.
1,2,4-Trimethylbenzene concentrations have fallen 38% since 2022.
Mercury And Mercury Compounds concentrations have more than doubled since 2022.
Xylene (mixed isomers) concentrations are roughly unchanged from 2022.
Within 3 miles of this facility (4 Census block groups, population-weighted demographics): a population of 6,186. 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.