Certified Storm Water Operator Practice Exam

Which statement best describes the relationship between erosion control and sediment control?

1. It is preferable to control sediment rather than prevent erosion

2. Preventing erosion is more effective than controlling sediment generated by it

3. Sediment control measures eliminate the need for erosion prevention

4. Both are equally important and can be implemented at the same time

The correct answer is: Preventing erosion is more effective than controlling sediment generated by it

The statement accurately reflects the principle that preventing erosion is fundamentally more effective than controlling sediment that has already been generated. Erosion control measures aim to keep soil in place on-site, thereby reducing the amount of sediment that could potentially enter water bodies or be transported by wind. This proactive approach addresses the source of the sediment problem before it can have negative environmental impacts. Preventing erosion not only minimizes sediment loss but also contributes to maintaining soil health and structure, which is critical for vegetation and ecosystems. When erosion is successfully managed, the subsequent need for sediment control is significantly reduced, leading to a more effective overall management strategy for stormwater and land use. Therefore, recognizing the importance of erosion prevention as the first line of defense against sediment issues is crucial in stormwater management practices.