Cyclohexane
Cyclohexane releases at Canadian Valley Gas Plant fell from 21k lb to 7k lb (66% lower) between 2023 and 2024.
Total reported releases 61k lb fell sharply year over year (-57%). Total releases concentrations are up 92% since 2022.
16595 122ND ST. NW, Calumet, Oklahoma · 211130 · Natural Gas Processing · operated by Oneok INC
Cyclohexane releases at Canadian Valley Gas Plant fell from 21k lb to 7k lb (66% lower) between 2023 and 2024.
n-Hexane releases at Canadian Valley Gas Plant fell from 106k lb to 43k lb (59% lower) between 2023 and 2024.
n-Hexane concentrations are up 70% since 2022.
Toluene concentrations have more than doubled since 2022.
Cyclohexane concentrations are up 55% since 2022.
Benzene concentrations have fallen 41% since 2023.
Ethylbenzene concentrations have more than doubled since 2022.
Methanol concentrations have more than doubled since 2022.
Canadian County County, OK (no Census block groups within 3 miles — falling back to containing county): a population of 156,681. Why we surface this →
Low-income
People of color
Under age 5
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.