n-Hexane
n-Hexane releases at Trecora Wax LLC rose from 5k lb to 16k lb (3.0×) between 2023 and 2024.
Total reported releases 390k lb fell meaningfully year over year (-24%). Total releases concentrations have fallen 21% since 2020.
12500 BAY AREA BLVD, Pasadena, Texas · 325199 · Chemicals · operated by Trecora Resources INC
n-Hexane releases at Trecora Wax LLC rose from 5k lb to 16k lb (3.0×) between 2023 and 2024.
Xylene (mixed isomers) releases at Trecora Wax LLC rose from 13k lb to 25k lb between 2023 and 2024.
Toluene releases at Trecora Wax LLC rose from 39k lb to 76k lb between 2023 and 2024.
Allyl alcohol concentrations have fallen 35% since 2020.
Toluene concentrations are up 79% since 2020.
Xylene (mixed isomers) concentrations have more than doubled since 2017.
n-Hexane concentrations have more than doubled since 2010.
Styrene concentrations have fallen 34% since 2020.
tert-Butyl alcohol concentrations have fallen 35% since 2020.
Dicyclopentadiene concentrations have more than doubled since 2016.
Propylene oxide concentrations have more than halved since 2010.
Within 3 miles of this facility (15 Census block groups, population-weighted demographics): a population of 21,815. Why we surface this →
Low-income
People of color
Under age 5
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.