Stormwater harvesting can improve water quality in rivers and lakes by reducing the amount of polluted runoff that reaches them. In urban areas, stormwater often collects contaminants such as oils, heavy metals, sediments, and nutrients as it flows over paved surfaces. When this untreated water enters rivers and lakes, it can degrade water quality, harm aquatic life, and contribute to issues like algal blooms.
By capturing and storing stormwater before it enters storm drains, harvesting systems limit the volume of runoff and the pollutants it carries. Many systems include filtration or treatment steps that remove debris and harmful substances, ensuring that only cleaner water is reused or released. Slowing down the flow of water also gives natural processes more time to filter and absorb nutrients, further protecting downstream ecosystems.
