An interview with Benjamin H. Grumbles, Assistant Administrator for Water, U.S. Environmental Protection Agency.
Q: Where does plumbing rank among sectors measured by the EPA in terms of water usage? Grumbles: Plumbing is one of the most important sectors. Depending on the region of the country, consumers use about 70% of their water indoors; toilets - the largest water users inside the home - account for 30% of a home’s indoor water use.