Throughout the home, fixtures and fittings satisfy the LEED requirements for water-use efficiency, meeting the set limits for average flow rates—less than 1.5 gallons per minute for the faucets and outdoor spigots, less than 1.75 gpm for the showerhead, and less than 1.1 gallons per flush for each of the two toilets. A small-capacity Energy Star clothes washer handles Brigham’s weekly washing needs. Additionally, the home claimed the maximum LEED credits allowable for managing roof runoff. In Colorado, where water laws dating to the 19th century still grant usage rights to roof runoff to downstream users, rain retention is prohibited. Sofield enlisted a civil engineer to size the infiltration ponds appropriately to return water to the aquifer.
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