Explain some Important Points for Hazardous Waste

• The mixture rule prevents dilution of waste for the purposes of escaping RCRA regulation. Mixtures of a listed hazardous waste and other solid wastes become hazardous wastes.
• The "contained in" rule is a direct consequence of the mixture rule. In this policy media such as soil and water are treated as hazardous waste if they contained listed hazardous materials
• The "derived from" rule tells us that any solid waste generated from the treatment, storage, or disposal of a hazard waste, including any sludge, spill residue, ash, emission-control dust, or leachate (but not precipitation run-off) is a hazardous waste.
• The "waste-code carry through" principle is a consequence of both the "derived from" and "mixture" rules. It states that solid waste derived from a hazardous and nonhazardous waste contains all of the same waste codes as the original waste.