When must permanent or temporary soil stabilization be applied to a bare area that is at final grade?

Permanent or temporary soil stabilization must be applied within 7 days to a bare area that has reached final grade to prevent soil erosion and sediment runoff. This time frame is established to ensure that the risk of sediment loss is minimized in a timely manner, especially during rain events or other disturbances that could destabilize the soil.

The necessity of prompt stabilization after reaching final grade is emphasized in state regulations and best management practices to protect water quality and the integrity of surrounding environments. Soil that is left bare for longer periods is more susceptible to erosion, which can lead to increased sedimentation in nearby water bodies and negatively impact aquatic habitats.

Applying stabilization methods such as seeding, mulching, or using erosion control blankets within the specified 7 days helps maintain soil integrity and reduces the likelihood of sedimentation issues. This timeframe reflects a balance between practicality for construction projects and the need for environmental protection, highlighting the importance of proactive erosion and sediment control measures.