What is Acre foot?
[[File:Acre foot.svg|thumb|350px|An acre-foot. (Not exact)]] An '''acre-foot''' is a unit of [[volume]] used in the [[United States customary units#Units of capacity and volume|United States]] to measure large amounts of water resources. It makes measuring water in [[reservoir (water)|reservoirs]], lakes, and rivers.<ref>{{cite web|title=NM OSE Glossary |url=http://www.ose.state.nm.us/water_info_glossary.html#A |access-date=15 March 2014 |url-status=dead |archive-url=https://web.archive.org/web/20051114202301/http://www.ose.state.nm.us/water_info_glossary.html |archive-date=14 November 2005 }}</ref> An acre-foot is the amount of water it would take to cover an [[acre]] of land with water {{convert|1|ft}} deep. One acre-foot of water is the same as {{convert|43,560|cuft|m3}} of water. It is about the same amount of water as a 8-lane, 25 m long competition [[swimming pool]]. ==Uses== The typical American family uses about 1 acre-foot of water in a year or about {{convert|892.72|USgal}} per day.<ref>{{cite web | url = http://dnrc.mt.gov/wrd/water_rts/wr_general_info/wrforms/627.pdf | title = Form No. 627 R8/03 Notice of Water Right | format = [[PDF]] | author1 = Water Rights Bureau | author2 = state of Montana | date = April 13, 2004 | access-date = 2008-01-30 | archive-url = https://web.archive.org/web/20080125225729/http://dnrc.mt.gov/wrd/water_rts/wr_general_info/wrforms/627.pdf | archive-date = 2008-01-25 | url-status = dead }}</ref> In some places in the deserts of the Southwestern United States, water conservation is a rule. In these areas, a normal family only uses 0.25 acre-feet of water per year.<ref>{{cite web | url = http://www.santafenm.gov/DocumentView.asp?DID=1427 | title = Water Use in Santa Fe: A survey of residential and commercial water use in the Santa Fe urban area | format = [[PDF]] | author = ((Planning Division, Planning & Land Use Department, City of Santa Fe, New Mexico)) | date = February 2001 | access-date = 2008-01-30 }}{{Dead link|date=January 2021 |bot=InternetArchiveBot |fix-attempt