Nonylphenol Ethoxylates
Nonylphenol Ethoxylates releases at Multi-Chem Group Sonora Tx Facility fell from 19k lb to 22 lb (100% lower) between 2023 and 2024.
Total reported releases 17k lb more than halved year over year (-78%). Total releases concentrations are up 67% since 2010.
349 PR 4473, Sonora, Texas · 325998 · Chemicals · operated by Halliburton Energy Services INC
Nonylphenol Ethoxylates releases at Multi-Chem Group Sonora Tx Facility fell from 19k lb to 22 lb (100% lower) between 2023 and 2024.
Methanol releases at Multi-Chem Group Sonora Tx Facility fell from 43k lb to 13k lb (69% lower) between 2023 and 2024.
Methanol concentrations are up 53% since 2010.
1,2,4-Trimethylbenzene concentrations have more than doubled since 2011.
Xylene (mixed isomers) concentrations are up 29% since 2010.
Toluene concentrations have fallen 32% since 2010.
Ethylbenzene concentrations have more than halved since 2011.
Certain glycol ethers concentrations have more than halved since 2010.
Ethylene glycol concentrations have more than halved since 2010.
Nonylphenol Ethoxylates concentrations have more than halved since 2020.
Within 3 miles of this facility (2 Census block groups, population-weighted demographics): a population of 1,639. 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.