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Characteristic Hazardous Wastes <br /> Aft <br /> 4) Toxicity <br /> • Wastes that are harmful or fatal when ingested or <br /> absorbed <br /> • Defined through the Toxicity Characteristic Leaching <br /> Procedure (TCLP) — "T-Clip" <br /> • TCLP mimics processes in landfills <br /> • Solid wastes are treated with an acid , then the <br /> resulting liquid is tested . <br /> • Liquid wastes are tested as-is <br /> • A waste exhibits the Toxicity Characteristic if a <br /> sample of the waste contains contaminants at or <br /> above the regulatory limit <br /> • Examples: wastes with high concentrations of heavy <br /> metals, such as cadmium , lead , or mercury <br />