Ammonia
Ammonia releases at Nipsco Michigan City Generating Station rose from 2k lb to 29k lb (12.8×) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
Nipsco Michigan City Generating Station
Total reported releases 296k lb fell sharply year over year (-54%). Total releases concentrations have more than halved since 2010.
101 WABASH ST, Michigan City, Indiana · 221112 · Electric Utilities · operated by Nisource INC
Anomaly engine
Notable Signals
Vanadium compounds
Vanadium compounds releases at Nipsco Michigan City Generating Station fell from 48k lb to 11k lb (76% lower) between 2023 and 2024.
Barium And Barium Compounds
Barium And Barium Compounds releases at Nipsco Michigan City Generating Station fell from 497k lb to 189k lb (62% lower) between 2023 and 2024.
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) at Nipsco Michigan City 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.
Chemicals reported · most recent year
What This Facility Releases
Barium And Barium Compounds
Barium And Barium Compounds concentrations have more than halved since 2010.
Ammonia
Ammonia concentrations have more than doubled since 2010.
Manganese And Manganese Compounds
Manganese And Manganese Compounds concentrations are up 70% 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 fallen 27% since 2016.
Zinc compounds
Zinc compounds concentrations have fallen 12% since 2011.
Vanadium compounds
Vanadium compounds concentrations have more than halved since 2010.
Copper compounds
Copper compounds concentrations have fallen 38% since 2010.
Lead And Lead Compounds
Lead And Lead Compounds concentrations are up 42% since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (24 Census block groups, population-weighted demographics): a population of 26,375. Why we surface this →
38.3%
Low-income
38.4%
People of color
4.6%
Under age 5
18.2%
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.