Define the Hazardous Waste
1. Any waste or combination of waste that poses a substantial danger now or future to humans, plants, and animals without special precautions.
2. There are cases where waste has been declared safe or non-hazardous, but years later cause a lot of hazardous problems
3. Waste material is considered to be hazardous if it is on the EPA developed lists (F, K, P, U, etc.).