Toxic Release Inventory data for 2024. 15 facilities reported releasing 1, 1, 1, 2-tetrachloroethane.
| Facility | State | On-site (lb) |
|---|---|---|
| Westlake Us 2 Llc Westlake | Louisiana | 8.1k |
| Eco Services Operations Corp. Houston | Texas | 212 |
| Norlite Llc Cohoes | New York | 185 |
| Westlake Vinyls Inc Calvert City | Kentucky | 38 |
| Veolia Es Technical Solutions Llc Port Arthur Facility Beaumont | Texas | 34 |
| Blue Cube Operations Llc - Plaquemine Site Plaquemine | Louisiana | 26 |
| Freeport_olin Bc Freeport | Texas | 15 |
| Us Ecology Texas Inc Robstown | Texas | 5 |
| Occidental Chemical Corp Gregory | Texas | 4 |
| Heritage Thermal Services East Liverpool | Ohio | 1 |
| Clean Harbors Deer Park Llc La Porte | Texas | 0 |
| Arcwood Environmental - Orange Llc Orange | Texas | 0 |
| Shintech Plaquemine Plant Plaquemine | Louisiana | 0 |
| Formosa Plastics Corp Texas Point Comfort | Texas | 0 |
The Toxic Release Inventory (TRI) tracks how much of each listed chemical U.S. industrial facilities release into the environment each year. EPA requires facilities in certain industry sectors that manufacture, process, or otherwise use TRI-listed chemicals above threshold amounts to report annually. In 2024, 15 facilities reported releasing 1, 1, 1, 2-tetrachloroethane to EPA's TRI program.
The primary release pathway is air emissions (8.6k lb), which includes both stack emissions from industrial processes and fugitive emissions from equipment leaks, evaporation, and other non-point sources.
TRI data represents reported releases, not measured environmental concentrations. A facility reporting large releases of 1, 1, 1, 2-tetrachloroethane is not necessarily causing harm at those levels — toxicity, exposure pathways, and local conditions all matter. Conversely, small reported amounts of highly toxic chemicals can pose greater risk than large amounts of less toxic ones. TRI is a transparency tool, not a risk assessment.
For health information about specific chemicals, the Agency for Toxic Substances and Disease Registry (ATSDR) publishes toxicological profiles, and EPA's Integrated Risk Information System (IRIS) provides reference doses and cancer classifications.