Certified Storm Water Operator Practice Exam

What must be avoided when disposing of diverted overland flow?

1. Water accumulation

2. Erosion and sediment deposition

3. Flooding and runoff

4. Pollutant contamination

The correct answer is: Erosion and sediment deposition

When disposing of diverted overland flow, it is crucial to avoid erosion and sediment deposition because these issues can significantly impact the quality of the surrounding environment. Erosion occurs when water flow displaces soil, leading to the loss of valuable topsoil and altering the landscape. This not only affects vegetation and natural habitats but can also increase turbidity in nearby water bodies, harming aquatic ecosystems. Sediment deposition can lead to the accumulation of particles and pollutants which may smother aquatic habitats and degrade water quality. Moreover, sediment buildup can interfere with the functionality of drainage systems, potentially leading to blockages that exacerbate flooding conditions. Effective management practices must be implemented to control water flow and minimize both erosion and sediment deposition while preserving the integrity of the surrounding landscape. By prioritizing the prevention of these factors, we protect both the land and water resources from degradation.