During which step of permeable pavement construction should temporary erosion and sediment controls be used?

Temporary erosion and sediment controls should be implemented before excavation begins because this step is crucial for preventing soil erosion and sediment runoff that can occur even before construction activities officially start. By establishing these controls in advance, you safeguard the surrounding environment from potential disturbances caused by excavation activities, which can result in sedimentation in nearby waterways and disruption of local ecosystems.

Prior to starting excavation, implementing measures such as silt fences, straw bales, or sediment basins creates a protective barrier and helps manage stormwater runoff. This proactive approach ensures that the site is prepared to handle any rain events or water runoff that may occur, thus minimizing the risk of sediment leaving the construction site. By following this phase, it is easier to maintain compliance with environmental regulations related to soil erosion and sediment control, which is a critical aspect of stormwater management practices.