Diversion is defined as

• A. Containment technique that is used when liquid is flowing in a natural channel or depression and its progress can be stopped by blocking the channel.
• B. The formation of barriers to hold material in place
• C. Adding water to dilution
• D. Intended to redirect a liquids flow from an endangered area to an area where it will have less impact (usually storm drains)

Answer: (D)

Diversion means redirecting the flow of a liquid away from an area at risk toward a place where it will cause less harm, often guiding it toward a storm drain or a designated safe outlet. The goal is to change the path of the spill so it poses the smallest possible impact to people, property, and the environment, rather than trying to stop the flow entirely or hold it in place.

Why this fits best: it focuses on altering the liquid’s path to reduce harm, rather than containment (holding the material where it is) or dilution (adding water to lower concentration). In practice, you might create a temporary channel or use booms to steer the flow toward a safer drainage area, which aligns with the idea of diverting to an area where the impact is minimized.

For context, containment options aim to trap or block the liquid to prevent spread, which is different from changing where the liquid goes. Adding water is a dilution tactic and does not involve changing the flow path.