Elimination & Substitution of Hazards
Elimination and substitution are the most effective levels in the hierarchy of controls. Elimination removes a hazard from the workplace, and substitution replaces a hazard with a less hazardous material or process. For the tank waste hazard, these controls are generally not feasible because our mission is to safely remove, treat, and dispose of tank waste at the Hanford Site. Worker protection is therefore achieved through engineering and administrative controls and, when exposures cannot be sufficiently reduced, appropriate personal protective equipment.
