Riverdale Plating & Heat Treating LLC
Total reported releases 39k lb rose modestly year over year (+15%). Total releases concentrations have more than doubled since 2010.
680 W 134TH ST, Riverdale, Illinois · 332813 · Fabricated Metals
Notable Signals
No notable signals at this facility for the current reporting year. See chemicals and equity context below for the full picture.
What Toxic Chemicals Riverdale Plating & Heat Treating LLC Releases
Zinc compounds
Zinc compounds concentrations are up 84% since 2010.
Nitrate compounds (water dissociable; reportable only when in aqueous solution)
Nitrate compounds (water dissociable; reportable only when in aqueous solution) concentrations have fallen 31% since 2014.
Nitric acid
Nitric acid concentrations are up 63% since 2011.
Ammonia
Ammonia concentrations have more than doubled since 2010.
Who Lives Near Riverdale Plating & Heat Treating LLC
Within 3 miles of this facility (111 Census block groups, population-weighted demographics): a population of 120,076. 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.