Total reported releases
Total reported releases at Smc Nye Mine Site have risen 83% since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Smc Nye Mine Site
Total reported releases 835k lb rose meaningfully year over year (+15%). Total releases concentrations are up 83% since 2010.
5 MILES SE OF NYE MT HWY 419, Nye, Montana · 212290 · Metal Mining · operated by Stillwater Mining Co
Anomaly engine
Notable Signals
Chromium compounds (except for chromite ore mined in the Transvaal Region)
Chromium compounds (except for chromite ore mined in the Transvaal Region) at Smc Nye Mine Site have risen 54% since 2010 (through 2024).
Chemicals reported · most recent year
What This Facility Releases
Nickel And Nickel Compounds
Nickel And Nickel Compounds concentrations are up 17% since 2010.
Methanol
Methanol concentrations have more than doubled since 2012.
Chromium compounds (except for chromite ore mined in the Transvaal Region)
Chromium compounds (except for chromite ore mined in the Transvaal Region) concentrations are up 54% since 2010.
Copper compounds
Copper compounds concentrations are up 17% since 2010.
Nitrate compounds (water dissociable; reportable only when in aqueous solution)
Nitrate compounds (water dissociable; reportable only when in aqueous solution) concentrations have more than doubled since 2010.
Lead And Lead Compounds
Lead And Lead Compounds concentrations have fallen 42% since 2010.
Propylene
Propylene concentrations are up 20% since 2022.
Mercury compounds
Mercury compounds concentrations have more than doubled since 2011.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Stillwater County County, MT (no Census block groups within 3 miles — falling back to containing county): a population of 8,978. Why we surface this →
8.0%
Low-income
8.3%
People of color
6.3%
Under age 5
24.4%
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.