Stormwater is frequently used for irrigation. By collecting rainwater runoff from surfaces like rooftops or pavements, it can provide a reliable source of water for watering gardens, lawns, parks, and agricultural crops. Stormwater is especially useful for irrigation in areas facing water scarcity or where the cost of potable water is high.
The water typically needs to be filtered to remove large debris, and in some cases, further treatment may be required to ensure that it is free of harmful chemicals or pathogens, particularly if it is being used for edible crops. Using harvested stormwater for irrigation helps reduce the reliance on potable water supplies, decreases the strain on stormwater systems, and can lower water bills. In urban environments, it can also help manage runoff and prevent flooding by capturing and reusing water before it flows into storm drains.
