Manh Choh Mine Development
Total reported releases 945 lb more than tripled year over year (+232%). Total releases concentrations have more than doubled since 2023.
ALASKA HIGHWAY, Tok, Alaska · 212220 · Metal Mining · operated by Kinross Gold CORP (Usa) INC
Notable Signals
No notable signals at this facility for the current reporting year. See chemicals and equity context below for the full picture.
What This Facility Releases
Ammonia
Ammonia volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
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.
Arsenic compounds
Arsenic compounds volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Cobalt compounds
Cobalt compounds volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Who Lives Next To This Facility
Southeast Fairbanks Census Area County, AK (no Census block groups within 3 miles — falling back to containing county): a population of 6,888. 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.