The following document provides information on the Toxicity Characteristic Leaching Procedure (TCLP), which is designed to determine the mobility of both organic and inorganic analytes present in liquid, solid, and multiphasic wastes.

This method is an SW-846 Method-Defined Parameter (MDP), meaning that it may not be modified when used for Resource Conservation and Recovery Act (RCRA) testing. For more information, see the Methods Innovation Rule page.

• Method 1311: Toxicity Characteristic Leaching Procedure, part of Test Methods for Evaluating Solid Waste, Physical/Chemical Methods (PDF)(35 pp, 286 K, July 1992)