Total reported releases 1.0M lb rose by an order of magnitude year over year (+496%). Total releases concentrations have more than halved since 2010.
SQUAW CREEK RD OFF HWY 75, Clayton, Idaho · 212290 · Metal Mining · operated by Thompson Creek Metals Co
Nitrate compounds (water dissociable; reportable only when in aqueous solution) releases at Thompson Creek Mining CO rose from 175k lb to 1.0M lb (6.0×) between 2023 and 2024.
Total reported releases at Thompson Creek Mining CO have more than halved since 2010 (through 2024).
Nitrate compounds (water dissociable; reportable only when in aqueous solution) concentrations have more than doubled since 2023.
Custer County County, ID (no Census block groups within 3 miles — falling back to containing county): a population of 4,344. Why we surface this →
Low-income
People of color
Under age 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.