Stormwater basins are specially designed areas that collect and manage rainwater runoff. They help prevent flooding by capturing excess water during storms and allowing it to slowly drain into the ground or be released into nearby water bodies. These basins can also filter pollutants, improving water quality before it enters rivers or lakes. Typically, stormwater basins are constructed in urban areas where impervious surfaces, like roads and buildings, prevent water from soaking into the soil. By using vegetation and natural filtration methods, these basins play a crucial role in managing stormwater and protecting the environment.