Toxic Release Inventory data for 2024. 23 facilities reported releasing pentachloroethane.
| Facility | State | On-site (lb) |
|---|---|---|
| Elemental Environmental Solutions Llc Arkadelphia | Arkansas | 249.4k |
| Westlake Us 2 Llc Westlake | Louisiana | 435 |
| Formosa Plastics Corp Louisiana Baton Rouge | Louisiana | 92 |
| Blue Cube Operations Llc - Plaquemine Site Plaquemine | Louisiana | 47 |
| Freeport_olin Bc Freeport | Texas | 46 |
| Veolia Es Technical Solutions Llc Port Arthur Facility Beaumont | Texas | 44 |
| Oxy Vinyls Lp Deer Park-Vcm Plant Deer Park | Texas | 36 |
| Westlake Chemicals & Vinyls Llc Plaquemine | Louisiana | 23 |
| Westlake Vinyls Inc Calvert City | Kentucky | 20 |
| Chemical & Metal Industries Inc Hudson | Colorado | 2 |
| Occidental Chemical Corp Gregory | Texas | 1 |
| Clean Harbors Deer Park Llc La Porte | Texas | 0 |
| Us Ecology Texas Inc Robstown | Texas | 0 |
| Clean Harbors El Dorado Llc El Dorado | Arkansas | 0 |
| Heritage Thermal Services East Liverpool | Ohio | 0 |
| Clean Harbors Aragonite Llc Grantsville | Utah | 0 |
| Arcwood Environmental - Orange Llc Orange | Texas | 0 |
| Shintech Plaquemine Plant Plaquemine | Louisiana | 0 |
| Formosa Plastics Corp Texas Point Comfort | Texas | 0 |
| Westlake Chemicals & Vinyls Llc Westlake | Louisiana | 0 |
| Occidental Chemical Corp Wichita | Kansas | 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, 23 facilities reported releasing pentachloroethane to EPA's TRI program.
The primary release pathway is land disposal (249.3k lb), which includes landfills, surface impoundments, land treatment, and underground injection.
TRI data represents reported releases, not measured environmental concentrations. A facility reporting large releases of pentachloroethane 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.