Manganese compounds
Manganese compounds at Pogo Mine have more than doubled since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Pogo Mine
Total reported releases 8.4M lb held roughly steady year over year (+1%). Total releases concentrations are roughly unchanged from 2010.
50 MILE POGO MINE RD, Delta Junction, Alaska · 212220 · Metal Mining · operated by Northern Star LLC
Anomaly engine
Notable Signals
Nitrate compounds (water dissociable; reportable only when in aqueous solution)
Nitrate compounds (water dissociable; reportable only when in aqueous solution) at Pogo Mine have risen 69% since 2010 (through 2024).
Chemicals reported · most recent year
What This Facility Releases
Arsenic compounds
Arsenic compounds concentrations have fallen 25% since 2010.
Nitrate compounds (water dissociable; reportable only when in aqueous solution)
Nitrate compounds (water dissociable; reportable only when in aqueous solution) concentrations are up 69% since 2010.
Manganese compounds
Manganese compounds concentrations have more than doubled since 2010.
Copper compounds
Copper compounds concentrations have fallen 25% since 2010.
Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)
Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) concentrations have more than doubled since 2010.
Vanadium compounds
Vanadium compounds concentrations have more than doubled since 2010.
Zinc compounds
Zinc compounds concentrations are up 79% since 2010.
Lead And Lead Compounds
Lead And Lead Compounds concentrations are up 61% since 2010.
Equity context · ACS 2018-2022 block-group demographics
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 →
13.2%
Low-income
28.2%
People of color
7.5%
Under age 5
14.2%
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.