Which of the following serves to assure that sediment does not leave the perimeter of the land-disturbing area?

Silt fences and sediment traps play a critical role in controlling erosion and sedimentation at construction sites. Silt fences are temporary barriers made of geotextile fabric that are installed to intercept sediment-laden runoff, effectively blocking sediment from leaving the disturbed site. They are typically placed along the perimeter of the land-disturbing area to create a barrier that captures sediment before it can reach off-site locations.

Sediment traps, on the other hand, are designed to temporarily store sediment that has been transported by water runoff. They help to slow down the flow of water, allowing sediment to settle out of the water column before it exits the site. Together, silt fences and sediment traps provide a robust method for ensuring that sediment remains within the construction area, thus protecting adjacent properties and water bodies from sediment pollution.

The other options, while they may contribute to overall site management and stabilization, do not specifically target sediment control at the perimeter as effectively as silt fences and sediment traps do. For instance, compost blankets and grass seed are more about stabilization and vegetation, while heavy machinery operation can disturb the soil and potentially create more erosion. Watering the site can help to reduce dust and maintain moisture but does not serve the specific function of preventing sediment from leaving