Vanadium (except when contained in an alloy)
Vanadium (except when contained in an alloy) at Black Hills Corp - Neil Simpson Complex have more than halved since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Black Hills Corp - Neil Simpson Complex
Total reported releases 1.7M lb rose modestly year over year (+11%). Total releases concentrations have fallen 30% since 2010.
13151 HWY 51, Gillette, Wyoming · 221112 · Electric Utilities · operated by Black Hills CORP
Anomaly engine
Notable Signals
Chemicals reported · most recent year
What This Facility Releases
Barium And Barium Compounds
Barium And Barium Compounds concentrations have fallen 27% since 2010.
Manganese
Manganese concentrations have fallen 28% since 2010.
Vanadium (except when contained in an alloy)
Vanadium (except when contained in an alloy) concentrations have more than halved since 2010.
Copper
Copper concentrations have fallen 41% since 2010.
Zinc (fume or dust)
Zinc (fume or dust) concentrations have fallen 43% since 2010.
Chromium
Chromium concentrations have fallen 35% since 2010.
Ammonia
Ammonia concentrations are roughly unchanged from 2010.
Nickel
Nickel concentrations have fallen 31% since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (2 Census block groups, population-weighted demographics): a population of 3,802. Why we surface this →
20.0%
Low-income
16.0%
People of color
3.8%
Under age 5
17.2%
Over age 64
Source: Census ACS 2018-2022 block-group demographics, population-weighted across the 3-mile buffer around this facility (from USEPA-clone/EJAM-open blockgroupstats). 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.