Which type of systems are examples of Type 3 containment systems?

Type 3 containment systems are designed to control and manage stormwater runoff and sediment. Sediment barriers are specifically used to intercept sediment-laden water and prevent it from leaving a construction site. They help minimize soil erosion during land disturbance activities by trapping sediment from surface runoff, making them integral in managing sedimentation issues effectively.

Retention ponds and detention basins, while also important for stormwater management, serve different functions. Retention ponds hold water for prolonged periods, allowing sediment to settle but are not categorized under Type 3 containment systems. Detention basins temporarily store stormwater and release it slowly; these too do not fit the criteria for Type 3 containment systems. Swales are shallow ditches designed to direct or convey stormwater, focusing on water flow rather than sediment interception.

By understanding the specific function of sediment barriers within the framework of Type 3 systems, it becomes clear why they are the correct choice in this context.