Total reported releases 671k lb fell sharply year over year (-38%). Total releases concentrations have more than halved since 2010.
3300 N STATE RT 63, Cayuga, Indiana · 221112 · Electric Utilities · operated by Duke Energy CORP
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) releases at Duke Energy Indiana INC. Cayuga Generating Station fell from 85k lb to 26k lb (69% lower) between 2023 and 2024.
Zinc compounds releases at Duke Energy Indiana INC. Cayuga Generating Station fell from 121k lb to 40k lb (67% lower) between 2023 and 2024.
Barium And Barium Compounds releases at Duke Energy Indiana INC. Cayuga Generating Station fell from 130k lb to 54k lb (58% lower) between 2023 and 2024.
Zinc compounds at Duke Energy Indiana INC. Cayuga Generating Station have more than three-quarters since 2010 (through 2024).
Showing the 4 most editorially weighted signals out of 6. Lower-severity signals fold into the chemical breakdown and history charts below.
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations have fallen 26% since 2010.
Manganese And Manganese Compounds concentrations have more than halved since 2010.
Barium And Barium Compounds concentrations have more than halved since 2010.
Zinc compounds concentrations have more than halved since 2010.
Vanadium compounds concentrations have more than halved since 2010.
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations have more than halved since 2010.
Nickel And Nickel Compounds concentrations have more than halved since 2010.
Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) concentrations have more than halved since 2010.
Within 3 miles of this facility (1 Census block groups, population-weighted demographics): a population of 669. Why we surface this →
Low-income
People of color
Under age 5
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.