EPA released a Final Specification for Single-Family New Homes (PDF) (15 pp, 120K) on December 9, 2009. This specification establishes the criteria for new homes labeled under the WaterSense program and is applicable to newly constructed single-family homes and townhomes of three stories or less. Because residential water use accounts for more than half of the publicly supplied water in the United States, WaterSense developed this specification for new homes that use about 20 percent less water than a typical…