In an area with abundant rainfall and a non-potable municipal supply, the decision to collect rainwater was an easy one. The form of the roof directs rainfall into centrally located tanks on the lower level, where it is stored in 4,000-gallon storage containers, filtered, and treated with ultraviolet light before being used as the building’s water supply. Since the site is already hooked up to the municipal water supply, emergency back-up is easily provided. Fixtures are of the lowest water consumption locally available. Potable water is supplied via bottled-water coolers. No water is used for landscaping purposes. Since the available rainfall exceeds the water requirements for this building, the surplus water is available for use by other buildings in the campus.