Onsite Rainwater and Stormwater Capture and Use Capture Capturing and using water onsite within a building reduces demand for potable water and decreases stormwater discharges that cause combined sewer overflows, stormwater pollution, and aquatic and riparian habitat degradation. Rain barrels and cisterns capture and store rainwater for later use. Rainwater Capture Capture of water from rain, snow- melt or sleet that lands on rooftops and other surfaces before it reaches the ground. Stormwater Capture Capture of water from rain, snowmelt, or sleet that lands on and flows over the ground. II Cisterns capture and store rainwater for later use. S: S> in ; i pfrm i 1 f / ' State and local standards may require treatment of onsite collected waters using processes such as ultraviolet disinfection, chlorine addition, and other filtration methods. End Use Indoor and outdoor uses for captured and treated onsite collected waters include toilet flushing, wash waters, landscape irrigation, and other uses. Drinking Water /7 / ' ' * — — * Toilet Flushing i i i S: Rain gardens, bioswales, or other forms of green infrastructure infiltrate stormwater into the ground where it recharges groundwater. kiTi S3. / / 4 f \ Irrigation Washing Infiltration for Groundwater Recharge There is growing interest in some communities to capture rainwater for treatment and drinking, as well as other household uses after disinfection. / 1/ ' Rain barrels capture and store rainwater for later use. https:z7www.epa.gov/waterreuse Roofs and other impermeable surfaces can be used to collect and use rainwater and stormwater for different industrial uses, such as vehicle washing. Learn more about green infrastructure and stormwater management: https://www.epa.gov/green-infrastructure/what-green-infrastructure https://www.epa.gov/npdes/stormwater-smart-outreach-tools https://www.epa.gov/waterreuse ------- |