Certified Storm Water Operator Practice Exam

What is the likely environmental impact of improperly managed runoff disposal?

1. Enhanced biodiversity

2. Erosion and sedimentation

3. Increased nutrient cycling

4. Improvements in water quality

The correct answer is: Erosion and sedimentation

Improperly managed runoff disposal often leads to significant environmental issues such as erosion and sedimentation. When stormwater runoff carries away soil and other materials, it can erode the landscape, destabilizing banks and increasing the sediment load in nearby water bodies. This sedimentation can smother aquatic habitats, reduce light penetration, and disrupt the growth of aquatic plants, ultimately harming fish populations and other organisms that rely on a stable environment. Furthermore, increased sedimentation can affect water quality by clogging waterways, which can lead to further complications like decreased oxygen levels and the transport of pollutants attached to sediment particles. Overall, the link between improper runoff management and erosion/sedimentation underscores the importance of implementing effective stormwater management practices to protect ecosystems and water quality.