Total reported releases 17k lb more than doubled year over year (+146%). Total releases concentrations are up 54% since 2010.
2624 FOREST SERVICE RD 287, Miami, Arizona · 212230 · Metal Mining · operated by Robinson Holdings (Usa)
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) releases at Carlota Copper CO rose from 7k lb to 17k lb (2.5×) between 2023 and 2024.
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations have more than doubled since 2010.
Copper concentrations have more than doubled since 2020.
Lead And Lead Compounds concentrations have more than halved since 2010.
Within 3 miles of this facility (2 Census block groups, population-weighted demographics): a population of 2,187. 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.