Which of the following could be a sign of erosion in BMP inspection?

Erosion can often be visually identified by the presence of eroded soil around the practice area. This indicates that the soil is being displaced due to water movement or other forces, which can compromise the effectiveness of stormwater management practices. Observing signs of eroded soil suggests that the site may not be functioning as intended, potentially leading to sedimentation issues in downstream water bodies and negatively impacting water quality. It is crucial for inspectors to identify these signs during inspections to address any underlying issues and implement corrective measures promptly.

The other options do not indicate erosion directly. Vegetation growth usually suggests good health of the BMP, while clear water in the basin might indicate effective filtration or treatment but does not specifically point to erosion. High sediment levels in water can suggest erosion, but it is the physical evidence at the site, in the form of eroded soil, that serves as a more direct indicator during inspections.