What is an example of a structural BMP used in stormwater management?

A retention pond is an example of a structural Best Management Practice (BMP) used in stormwater management because it is a constructed facility designed to hold water runoff and allow it to infiltrate into the ground or be released slowly into nearby water bodies. This helps to mitigate the effects of stormwater runoff by reducing flooding, controlling sedimentation, and improving water quality by providing a natural filtration process. Retention ponds can capture and treat stormwater, making them effective in managing both the quantity and quality of stormwater discharges.

In contrast, employee training programs, good housekeeping practices, and monitoring inspections are procedural or operational BMPs that focus on managing and reducing pollution through actions taken by personnel or operational protocols rather than through physical structures. These practices are important for maintaining compliance and maximizing the effectiveness of structural BMPs like retention ponds, but they do not represent structural solutions directly intended for stormwater management.