Toxic Release Inventory (TRI)

Reporting of toxic chemical releases is integral to regulatory compliance, enhancing company image, as well as being an environmental steward of surrounding communities. Trinity has conducted chemical release estimates for thousands of facilities, some with complex processes involving complicated chemical reactions, physical manipulations, and dozens of waste streams. We utilize many resources to determine the most appropriate release estimation method for each chemical, including information developed by EPA, industry organizations, and equipment manufacturers. We also develop custom chemical release tracking and reporting tools that are consistent with the complexity of the site and the budget of the client.


Section 313 of the Emergency Planning and Community Right-to-Know Act (EPCRA, or Title III of the Superfund Amendments and Reauthorization Act of 1986) requires submission of the Toxic Chemical Release Inventory (TRI) report every July 1. Trinity assists with TRI reporting by conducting a chemical-by-chemical threshold determination to confirm reporting applicability, and then assembling the required information to develop media by media release estimates for each chemical considering the variables unique to each site/chemical combination. In addition to TRI reports, Trinity also assists clients with Tier II Chemical Inventory reporting, and emergency release notifications required under CERCLA/EPCRA including continuous release reporting.

More information can be found at the following services pages:

Emissions Reporting

Emissions Monitoring