n-Hexane
n-Hexane releases at Velma Gas Plant rose from 3k lb to 42k lb (15.8×) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
Velma Gas Plant
Total reported releases 63k lb rose by an order of magnitude year over year (+966%). Total releases concentrations have more than doubled since 2023.
297685 OLD COUNTY HIGHWAY 7, Velma, Oklahoma · 211130 · Natural Gas Processing · operated by Targa Resources CORP
Anomaly engine
Notable Signals
Chemicals reported · most recent year
What This Facility Releases
n-Hexane
n-Hexane concentrations have more than doubled since 2023.
Cyclohexane
Cyclohexane volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Toluene
Toluene concentrations have more than doubled since 2023.
Ethylbenzene
Ethylbenzene volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Xylene (mixed isomers)
Xylene (mixed isomers) concentrations are up 66% since 2023.
Benzene
Benzene 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
Within 3 miles of this facility (1 Census block groups, population-weighted demographics): a population of 740. Why we surface this →
48.8%
Low-income
25.1%
People of color
4.1%
Under age 5
7.2%
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.