Which item is not one of the six pre-abatement steps?

• A. Critical Barrier Installation
• B. Decon Unit Construction
• C. Pre-Clean Surfaces
• D. Post-Removal Debris Disposal

Answer: (D)

The question tests understanding of what activities belong to the preparation phase before abatement begins. Pre-abatement steps are all about getting the work area ready and contained to prevent contamination during removal. Installing a critical barrier creates a physical boundary to keep dust in the work zone. Building a decontamination unit sets up the system for workers to clean and decontaminate before leaving the area. Pre-cleaning surfaces helps reduce dust that could become airborne during removal.

Disposing of debris after removal is finished is a post-removal activity, focused on safely handling and disposing of waste generated by the work. It happens after everything has been removed, not during the preparation phase, so it does not fit with the pre-abatement steps.

Therefore, post-removal debris disposal is the item that is not part of the pre-abatement steps.