TRI facility · TRI 2024 reporting year

Multi-Chem Group Sonora Tx Facility

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

TOTAL RELEASES · 20102024
Bar chart of annual values from 2010 to 2024, in lb. Most recent year (2024): 17k.79k'10'12'14'16'18'20'22'2417k
Anomaly engine

Notable Signals

YEAR-OVER-YEAR DROP · RELEASE SHIFT

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.

YEAR-OVER-YEAR DROP · RELEASE SHIFT

Methanol

Methanol releases at Multi-Chem Group Sonora Tx Facility fell from 43k lb to 13k lb (69% lower) between 2023 and 2024.

Chemicals reported · most recent year

What This Facility Releases

RESPIRATORYCAS 67-56-1

Methanol

13k lb · -69% YoY

Methanol concentrations are up 53% since 2010.

GENERALCAS 95-63-6

1,2,4-Trimethylbenzene

3k lb · -9% YoY

1,2,4-Trimethylbenzene concentrations have more than doubled since 2011.

RESPIRATORYCAS 1330-20-7

Xylene (mixed isomers)

559 lb · -85% YoY

Xylene (mixed isomers) concentrations are up 29% since 2010.

RESPIRATORYCAS 108-88-3

Toluene

399 lb · -63% YoY

Toluene concentrations have fallen 32% since 2010.

CARCINOGENCAS 100-41-4

Ethylbenzene

117 lb · -88% YoY

Ethylbenzene concentrations have more than halved since 2011.

RESPIRATORYCAS N230

Certain glycol ethers

96 lb · -97% YoY

Certain glycol ethers concentrations have more than halved since 2010.

RESPIRATORYCAS 107-21-1

Ethylene glycol

73 lb · -97% YoY

Ethylene glycol concentrations have more than halved since 2010.

GENERALCAS N535

Nonylphenol Ethoxylates

22 lb · -100% YoY

Nonylphenol Ethoxylates concentrations have more than halved since 2020.

Equity context · ACS 2018-2022 block-group demographics

Who Lives Next To This Facility

Within 3 miles of this facility (2 Census block groups, population-weighted demographics): a population of 1,639. Why we surface this →

POPULATION SHARE
28.2%

Low-income

POPULATION SHARE
67.2%

People of color

POPULATION SHARE
2.8%

Under age 5

POPULATION SHARE
12.1%

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.