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100   $a20090422d2009      ca              
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200 10$aStatus of ground-water levels and storage volume in the Equus Beds aquifer near Wichita, Kansas, July 2008$b[electronic resource] /$fby Cristi V. Hansen ; prepared in cooperation with the city of Wichita, Kansas
210  1$aReston, Va. :$cU.S. Dept. of the Interior, U.S. Geological Survey,$d2009.
215   $a1 map. $cdigital, PDF file
225 1 $aScientific investigations map ;$v3075
300   $aDepths shown by isolines and soundings.
300   $aTitle from PDF title screen (viewed on April 22, 2009).
300   $aIncludes text, location map, graph and table.
320   $aIncludes bibliographical references.
330   $aThe Equus Beds aquifer in southwestern Harvey County and northwestern Sedgwick County was developed to supply water to the city of Wichita and for irrigation in south-central Kansas. Water-level and storage-volume decreases that began with the development of the aquifer in the 1940s reached record to near-record lows in January 1993. Since 1993, the aquifer has been experiencing higher water levels and a partial recovery of storage volume previously lost during August 1940 to January 1993. Measured water-level changes for August 1940 to July 2008 ranged from a decline of 23.41 feet to a rise of 3.58 feet. The change in storage volume in the study area from August 1940 to July 2008 was a decrease of about 134,000 acre-feet. This represents a recovery of about 121,000 acre-feet, or about 47 percent of the storage volume previously lost between August 1940 and January 1993. The change in storage volume from August 1940 to July 2008 in the central part of the study area, where city pumpage occurs, was a decrease of about 71,200 acre-feet. This represents a recovery of about 82,800 acre-feet, or about 54 percent of the storage volume previously lost between August 1940 and January 1993 in the central part of the study area. The recovery in the central part of the study area probably was greater and more consistently maintained than in the study area as a whole because city pumpage has remained less than pre-1993 levels, whereas agricultural irrigation pumpage has been as much or more than pre-1993 levels in some years.
606   $aGroundwater$zKansas$zWichita$vMaps
606   $aWater table$zKansas$zWichita$vMaps
608   $aMaps.$2lcgft
615  0$aGroundwater
615  0$aWater table
700   $aHansen$b Cristi V$01383030
712 02$aWichita (Kan.)
712 02$aGeological Survey (U.S.)
801  0$bEJB
801  1$bEJB
801  2$bGPO
906   $aBOOK
912   $a9910698897103321
996   $aStatus of ground-water levels and storage volume in the Equus Beds aquifer near Wichita, Kansas, July 2008$93491704
997   $aUNINA