Which example refers to a structural BMP?

A structural Best Management Practice (BMP) involves physical structures or systems designed to control stormwater runoff and reduce pollution. Sediment traps are specifically engineered installations that capture and retain sediment from stormwater before it can be released into the environment. Their purpose is to prevent sedimentation in water bodies, helping to maintain water quality and clarity.

In contrast, employee training, good housekeeping practices, and public awareness campaigns are categorized as non-structural BMPs. These practices focus on behavior change, education, and operational procedures rather than physical infrastructure. Non-structural BMPs play a vital role in stormwater management but do so through strategies that rely on human actions and practices rather than by incorporating physical structures like sediment traps. Therefore, identifying sediment traps as a structural BMP highlights the distinction between tangible physical solutions versus those that are based on training and procedural improvements.