There are also excellent opportunities to integrate [[rainwater harvesting]] systems in many municipal facilities. Rainwater harvesting systems have two requirements: an area for catchment of relatively clean runoff, and a nearby demand for water usage. Municipal facilities often have large rooftop areas that produce relatively clean runoff. Installing a cistern either internal to the building or buried adjacent to the building can provide a sustainable source of water for site irrigation needs, including landscaped areas and recreational fields, as well as indoor use for flushing toilets and urinals. | There are also excellent opportunities to integrate [[rainwater harvesting]] systems in many municipal facilities. Rainwater harvesting systems have two requirements: an area for catchment of relatively clean runoff, and a nearby demand for water usage. Municipal facilities often have large rooftop areas that produce relatively clean runoff. Installing a cistern either internal to the building or buried adjacent to the building can provide a sustainable source of water for site irrigation needs, including landscaped areas and recreational fields, as well as indoor use for flushing toilets and urinals. |