Lead compounds
Lead compounds at Asarco LLC Ray Mine Operations have more than doubled since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Asarco LLC Ray Mine Operations
Total reported releases 1.0M lb fell meaningfully year over year (-29%). Total releases concentrations have more than doubled since 2010.
HWY 177 8 MILES N OF KEARNY, Kearny, Arizona · 212230 · Metal Mining · operated by Americas Mining CORP
Anomaly engine
Notable Signals
Total reported releases
Total reported releases at Asarco LLC Ray Mine Operations have more than doubled since 2010 (through 2024).
Nickel
Nickel releases at Asarco LLC Ray Mine Operations fell from 29k lb to 13k lb (53% lower) between 2023 and 2024.
Chemicals reported · most recent year
What This Facility Releases
Lead compounds
Lead compounds concentrations have more than doubled since 2010.
Chromium
Chromium concentrations are up 96% since 2010.
Manganese
Manganese concentrations have more than halved since 2019.
Nickel
Nickel concentrations have fallen 48% since 2017.
Copper compounds
Copper compounds concentrations have fallen 41% since 2010.
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.
n-Hexane
n-Hexane volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Mercury compounds
Mercury compounds concentrations are up 95% since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (1 Census block groups, population-weighted demographics): a population of 1,036. Why we surface this →
42.6%
Low-income
32.0%
People of color
6.9%
Under age 5
28.2%
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.