Certified Storm Water Operator Practice Exam

Which features are associated with sensitive areas vulnerable to sediment damage?

1. Mountains and hills

2. Lakes and streams

3. Deserts and cliffs

4. Forests and plains

The correct answer is: Lakes and streams

The selection of lakes and streams as features associated with sensitive areas vulnerable to sediment damage is well-founded. These water bodies are particularly susceptible to sedimentation because they often serve as receptors for runoff from surrounding landscapes. When sediment is introduced into lakes and streams, it can adversely affect water quality, harm aquatic habitats, and disrupt ecosystems. In these areas, even small amounts of sediment can cloud the water, reducing the sunlight penetration necessary for photosynthesis in aquatic plants. Additionally, sediment can carry pollutants and nutrients that lead to excessive growth of algae, further degrading water quality and harming aquatic life. While other features like mountains, deserts, and forests can be impacted by sedimentation in various ways, the immediate connection between sediment transport and water quality issues is most pronounced in lakes and streams. Understanding these dynamics is essential for stormwater management and implementing effective erosion control measures in these sensitive areas.