'Prohibited waste' is a waste that will cause ___ in a POTW.

• A. Interference
• B. Pass Through
• C. Damage
• D. All of the Above

Answer: (D)

A prohibited waste is anything that can disrupt the operation of a POTW. It can cause interference, which means it disrupts the treatment process or the plant’s ability to function properly; it can cause pass through, meaning the pollutant isn’t fully treated and leaves in the effluent or sludge; or it can cause damage, meaning it harms plant equipment, pipes, or poses hazards to workers. Because a prohibited waste has the potential to cause any of these problems, the best answer is the one that covers all of them. For example, a highly corrosive chemical could damage equipment, a solvent that isn’t treated could pass through to the discharge, and a viscous grease might cause interference by clogging pumps.