Total reported releases 7.1M lb fell meaningfully year over year (-19%). Total releases concentrations have more than halved since 2010.
6500 NORTH U.S. 231, Rockport, Indiana · 331110 · Primary Metals · operated by Cleveland-Cliffs INC
Nitrate compounds (water dissociable; reportable only when in aqueous solution) at Cleveland-Cliffs Steel Corp (Rockport Works ) have more than three-quarters since 2010 (through 2024).
Total reported releases at Cleveland-Cliffs Steel Corp (Rockport Works ) have more than halved since 2010 (through 2024).
Nitrate compounds (water dissociable; reportable only when in aqueous solution) concentrations have more than halved since 2010.
Sodium nitrite concentrations are up 10% since 2010.
Chromium concentrations have fallen 38% since 2010.
Nickel concentrations have fallen 11% since 2010.
Ammonia concentrations have fallen 44% since 2010.
Hydrogen fluoride concentrations have fallen 29% since 2010.
Nitric acid concentrations are roughly unchanged from 2010.
Chlorine concentrations have more than halved since 2010.
Within 3 miles of this facility (2 Census block groups, population-weighted demographics): a population of 1,275. 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.