What is the primary purpose of infiltration basins in stormwater management?

The primary purpose of infiltration basins in stormwater management is to collect and temporarily hold stormwater. These basins are specifically designed to allow stormwater runoff to percolate into the ground, thereby promoting groundwater recharge while reducing surface runoff. By holding the stormwater temporarily, infiltration basins help to manage peak flow rates during rain events, which can minimize flooding and the associated effects on water quality.

Infiltration basins work by taking advantage of the natural filtration capabilities of soil. As water seeps through the ground, it is naturally filtered, which helps to remove pollutants before they reach groundwater supplies. This makes them an essential component of stormwater management systems aimed at both controlling water quantity and maintaining water quality.

The other options do not align with the primary function of infiltration basins. For instance, increasing soil erosion or promoting rapid water runoff are counterproductive to the goals of stormwater management. Similarly, preventing filtration of stormwater directly contradicts the intended purpose of infiltration basins, which is to enhance the filtration process through soil percolation. Thus, option A encapsulates the fundamental role of infiltration basins effectively.