N770
N770 releases at Holcomb Unit 1 fell from 21k lb to 0 lb (100% lower) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
Holcomb Unit 1
Total reported releases 371k lb fell meaningfully year over year (-31%). Total releases concentrations have more than halved since 2010.
2440 S HOLCOMB LN, Holcomb, Kansas · 221112 · Electric Utilities · operated by Sunflower Electric Power CORP
Anomaly engine
Notable Signals
Total reported releases
Total reported releases at Holcomb Unit 1 have more than halved since 2010 (through 2024).
Barium compounds (except for barium sulfate (CAS No. 7727-43-7))
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) at Holcomb Unit 1 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 more than halved since 2010.
Manganese compounds
Manganese compounds concentrations have more than halved since 2010.
Lead compounds
Lead 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)
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations are up 14% since 2010.
Hydrogen fluoride
Hydrogen fluoride concentrations have more than halved since 2010.
Mercury And Mercury Compounds
Mercury And Mercury Compounds concentrations have more than halved since 2010.
Dioxin and dioxin-like compounds
Dioxin and dioxin-like compounds volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Finney County County, KS (no Census block groups within 3 miles — falling back to containing county): a population of 38,187. Why we surface this →
12.8%
Low-income
60.7%
People of color
9.0%
Under age 5
11.3%
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.