Xylene (mixed isomers)
Xylene (mixed isomers) releases at Multi-Chem Group Bayport Tx Facility rose from 1k lb to 39k lb (29.8×) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
Multi-Chem Group Bayport Tx Facility
Total reported releases 81k lb rose modestly year over year (+7%). Total releases concentrations have more than doubled since 2010.
11200 BAY AREA BLVD, Pasadena, Texas · 325199 · Chemicals · operated by Halliburton Energy Services INC
Anomaly engine
Notable Signals
Certain glycol ethers
Certain glycol ethers releases at Multi-Chem Group Bayport Tx Facility fell from 62k lb to 2k lb (97% lower) between 2023 and 2024.
Chemicals reported · most recent year
What This Facility Releases
Xylene (mixed isomers)
Xylene (mixed isomers) concentrations have more than doubled since 2021.
Methanol
Methanol concentrations have more than doubled since 2017.
Ethylbenzene
Ethylbenzene concentrations have more than doubled since 2021.
Acetonitrile
Acetonitrile volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Naphthalene
Naphthalene concentrations have more than doubled since 2015.
Toluene
Toluene concentrations are roughly unchanged from 2022.
Ethylene glycol
Ethylene glycol concentrations have more than doubled since 2021.
Nonylphenol
Nonylphenol concentrations have more than doubled since 2021.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (13 Census block groups, population-weighted demographics): a population of 21,226. Why we surface this →
17.8%
Low-income
33.3%
People of color
6.2%
Under age 5
14.9%
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.