Waste Designation Decision Matrix - Toxic Wastes
This matrix is provided as a tool. It cannot be used as a substitute for following applicable city, state, and federal laws.
Do you know or suspect that your waste contains toxic constituents? Review the list below.
Based on a health-risk analysis, the EPA developed regulatory levels for the maximum concentration of 40 substances (constituents). Any material that contains one or more of these constituents, at or above the regulatory level, is considered a characteristic (toxicity) hazardous waste with associated waste codes D004-D043. If your waste has any of the constituents listed below, you must determine the level they contain so you can determine if your waste is considered toxic.
To determine this, you can use process knowledge and/or testing using the Toxicity Characteristic Leaching Procedure (TCLP). For example, you could use process knowledge to rule out any of the 40 chemicals you know are not in the product or process that generated the waste. Then, you could use the TCLP on the unknown chemicals in the process. If the waste leaches at or above one of the regulatory levels, the waste is hazardous because of the toxicity characteristic.
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