Which is a primary purpose of stormwater management practices?

The primary purpose of stormwater management practices is to reduce pollution. These practices are designed to effectively manage the quantity and quality of stormwater runoff, which can carry various contaminants such as sediments, chemicals, and nutrients into local waterways. By implementing effective management strategies, such as retention basins, swales, and filtration systems, stormwater management helps to minimize the introduction of pollutants into the environment, thereby protecting water quality and aquatic ecosystems.

This focus on pollution reduction aligns with broader environmental regulations and strategies aimed at preserving natural resources and ensuring safe, clean water for communities. In contrast, the other options do not capture the central aim of stormwater management, which is primarily focused on mitigating pollution impacts rather than discouraging construction, lowering costs, or enhancing landscaping.