What is one method to manage stormwater on-site effectively?

• A. Constructing large retention basins
• B. Implementing rain gardens
• C. Developing hardscapes extensively
• D. Increasing impervious surfaces

Answer: (B)

Implementing rain gardens is an effective method of managing stormwater on-site because these landscapes are specifically designed to absorb and filter rainwater runoff. Rain gardens are typically planted in depressions or areas that receive runoff and are filled with native plants and soil mixes that allow water to percolate through the ground.

By allowing water to soak into the ground rather than running off into storm drains or waterways, rain gardens help reduce the volume of stormwater that can cause flooding and erosion. They also improve water quality by filtering pollutants from the runoff before it reaches larger bodies of water. This natural method not only manages water effectively but also supports local biodiversity and enhances the aesthetic value of landscapes.

In contrast, large retention basins may provide storage for stormwater but often require substantial land space and can be less effective at promoting infiltration. Extensive hardscape development increases impermeable surfaces, leading to greater runoff and potential flooding, while increasing impervious surfaces can exacerbate stormwater management issues rather than alleviating them.