the first time lowest water level the first time fell September 2011 but it has not approached lowest water level 1084.89 feet federal river keepers http://www.usbr.gov/lc/region/g4000/hourly/mead-elv.html fell http://www.usbr.gov/lc/region/g4000/hourly/mead-elv.html the first time history http://www.usbr.gov/lc/region/g4000/hourly/mead-elv.html data as of June 2 Bureau of Reclamation website February 2013 Lake Mead at Hoover Dam, Elevation. data year-on-year lowest water level year-on-year forecasts level lake’s surface lake’s surface peak in October 1998 http://www.usbr.gov/lc/region/g4000/hourly/mead-elv.html lake’s surface Lake Mead at Hoover Dam, Elevation. year-on-year U.S. Bureau of Reclamation November 2011 lake’s surface U.S. Bureau of Reclamation September 2011 lowest water level fell Lake Mead at Hoover Dam, Elevation. November 2011 but it has not approached lowest water level fell fell US Bureau of Reclamation, http://www.usbr.gov/lc/region/g4000/hourly/mead-elv.html lake’s surface lowest water levels since its construction fell May 1936 lowest water levels since its construction lowest water level lake’s surface US Bureau of Reclamation, lowest water level lake’s surface lowest level lowest level is available for the first time according to lake’s surface Bureau of Reclamation US Bureau of Reclamation, lowest water level http://www.usbr.gov/lc/region/g4000/hourly/mead-elv.html lake’s surface February 2013 lowest water level the first time August 2011 Water Levels http://www.usbr.gov/lc/region/g4000/hourly/mead-elv.html "Lake Mead at Hoover Dam, Elevation" August 2011 level level of the lake forecasts Lake Mead at Hoover Dam website level level of the lake lake’s surface US Bureau of Reclamation, http://www.usbr.gov/lc/region/g4000/hourly/mead-elv.html Bureau of Reclamation Levels records http://www.usbr.gov/lc/region/g4000/hourly/mead-elv.html http://www.usbr.gov/lc/region/g4000/hourly/mead-elv.html US Bureau of Reclamation fell fell US Bureau of Reclamation, http://www.usbr.gov/lc/region/g4000/hourly/mead-elv.html