Xylene (mixed isomers)
Xylene (mixed isomers) releases at Calcasieu Refining CO fell from 36k lb to 4k lb (90% lower) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
Calcasieu Refining CO
Total reported releases 28k lb more than halved year over year (-83%). Total releases concentrations have fallen 19% since 2010.
4359 W TANK FARM RD, Lake Charles, Louisiana · 324110 · Petroleum · operated by Transworld Oil USA INC
Anomaly engine
Notable Signals
Toluene
Toluene releases at Calcasieu Refining CO fell from 32k lb to 5k lb (85% lower) between 2023 and 2024.
n-Hexane
n-Hexane releases at Calcasieu Refining CO fell from 38k lb to 8k lb (79% lower) between 2023 and 2024.
Chemicals reported · most recent year
What This Facility Releases
n-Hexane
n-Hexane concentrations have fallen 31% since 2010.
Cyclohexane
Cyclohexane concentrations are up 15% since 2010.
Toluene
Toluene concentrations are up 24% since 2010.
Xylene (mixed isomers)
Xylene (mixed isomers) concentrations have more than doubled since 2010.
Benzene
Benzene concentrations have more than halved since 2010.
1,2,4-Trimethylbenzene
1,2,4-Trimethylbenzene concentrations are up 65% since 2012.
Naphthalene
Naphthalene concentrations have more than halved since 2010.
Ethylbenzene
Ethylbenzene concentrations have more than halved since 2010.
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 3,276. Why we surface this →
3.0%
Low-income
4.9%
People of color
5.0%
Under age 5
19.8%
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.