Hydrogen fluoride
Hydrogen fluoride at Weston Power Plant have more than three-quarters since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Weston Power Plant
Total reported releases 658k lb fell modestly year over year (-12%). Total releases concentrations have more than halved since 2010.
2491 OLD HIGHWAY 51, Mosinee, Wisconsin · 221112 · Electric Utilities · operated by Wec Energy Group
Anomaly engine
Notable Signals
Total reported releases
Total reported releases at Weston Power Plant have more than halved since 2010 (through 2024).
Chemicals reported · most recent year
What This Facility Releases
Barium compounds (except for barium sulfate (CAS No. 7727-43-7))
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) concentrations have fallen 47% since 2010.
Manganese compounds
Manganese compounds concentrations have fallen 28% since 2010.
Vanadium compounds
Vanadium compounds concentrations have fallen 47% since 2010.
Ammonia
Ammonia concentrations have more than doubled since 2010.
Copper compounds
Copper compounds concentrations have more than halved since 2010.
Zinc compounds
Zinc compounds concentrations have more than halved since 2010.
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations have more than halved since 2010.
Lead compounds
Lead compounds concentrations have fallen 44% since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (7 Census block groups, population-weighted demographics): a population of 12,225. Why we surface this →
12.8%
Low-income
11.9%
People of color
7.2%
Under age 5
14.8%
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.