Final answer:
The EPA requires stabilization activities to be completed within 14 days if a 10-acre site is near sediment or nutrient-sensitive waters to prevent pollution and protect sensitive ecosystems.
Step-by-step explanation:
According to the requirements of the Environmental Protection Agency (EPA), if a 10-acre site is near sediment or nutrient-sensitive water, you need to complete stabilization activities within 14 days. This prompt response is necessary to protect water quality and prevent pollutants from entering sensitive ecosystems. It is important to manage sedimentation and the use of fertilizers carefully to prevent scenarios such as runoff into bodies of water, which can cause issues like algal blooms, illustrated by the example of fertilizer runoff causing algal blooms in Lake Erie.