Definition of FEN. : low land that is covered wholly or partly with water unless artificially drained and that usually has peaty alkaline soil and characteristic flora (as of sedges and reeds).
The average American family uses more than 300 gallons of. water per day at home. Roughly 70 percent of this use occurs. indoors. In addition, there are other miscellaneous uses of water in the house which may be very significant, depending on the. degree of water conservation by the household.
A 2011 EPA report estimated that 70 to 140 billion gallons of water are used to fracture 35,000 wells in the United States each year - approximately the annual water consumption of 40 to 80 cities each with a population of 50,000, according to Earthworks.