N450
N450 releases at Hermosa fell from 74k lb to 0 lb (100% lower) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
Hermosa
Total reported releases 5k lb more than halved year over year (-95%). Total releases concentrations have more than halved since 2018.
749 HARSHAW RD, Patagonia, Arizona · 212230 · Metal Mining
Anomaly engine
Notable Signals
N982
N982 releases at Hermosa fell from 11k lb to 0 lb (100% lower) between 2023 and 2024.
Chemicals reported · most recent year
What This Facility Releases
Lead compounds
Lead compounds concentrations have more than halved since 2018.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Santa Cruz County County, AZ (no Census block groups within 3 miles — falling back to containing county): a population of 47,838. Why we surface this →
20.2%
Low-income
84.9%
People of color
7.0%
Under age 5
18.5%
Over age 64
Source: Census ACS 2018-2022 (5-year), county-level fallback. 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.