What role do percolation rates play in site design related to stormwater management?

Percolation rates are crucial in site design for stormwater management because they indicate how quickly water can infiltrate through soil layers. A higher percolation rate means that water will move through the soil more rapidly, which enhances the ability of the ground to absorb rainwater and reduce runoff. This infiltration is significant for managing stormwater as it allows more water to be absorbed into the ground, decreasing the volume of surface runoff that can lead to flooding and erosion. Effective stormwater management practices prioritize the use of soils with suitable percolation rates to enhance groundwater recharge and minimize negative environmental impacts associated with excessive surface water runoff. By understanding and utilizing percolation rates, designers can create systems that work with natural hydrology, ultimately promoting sustainable stormwater management solutions.