Status of Ground-Water Levels and Storage Volume in the Equus Beds Aquifer Near Wichita, Kansas, July 2008

Hansen, Cristi V.

doi:10.3133/sim3075

Cited by 7 publications

(30 citation statements)

References 7 publications

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“…The first three periods have been well documented by and will not be described in this report. The fourth period-the period of water-level rises seen by during 1993-98-was noted by Hansen and Aucott (2004) as continuing through April 2000 and possibly to January 2003 when the last reporting period ended. Despite a slight water-level decline during 2001-03, water levels in wells in the study area (for example, wells 104 and 886 in figure 2C) have remained relatively high, indicating this period of water-level rises that began in 1993 continued through the current reporting period (January 2003 to January 2006).…”

Section: Ground-water-level Changesmentioning

confidence: 99%

“…For mapping purposes, the water levels from the shallow well at the site of each pair of areal index wells were used, except at the three most northwesterly pairs of areal index well sites in T. 23 S., R. 3 W.; water levels from the deep wells in these three pairs were used instead because they best represent the part of the aquifer open to the historic observation wells in this part of the study area. The selection of the wells used for mapping purposes from each of the 38 pairs of areal index wells was previously described in Hansen and Aucott (2004). Average daily surface-water-altitude measurements computed for January 25, 2006, from data automatically collected by equipment at USGS gaging stations (stations 07143330, 07143375, 07143665, 07143672, 07144100, and 07144200) on the Arkansas and Little Arkansas Rivers in and near the study area ( fig.…”

Section: Ground-water-level Changesmentioning

confidence: 99%

“…4) shows that ground water flowed generally from west to east and discharged to the Little Arkansas River. Water-level-altitude maps for August 1940 and January 1955 (Stramel, 1956); for January 1957, January 1970, January 1993, and January 1998 ; for January 1997 (Aucott and others, 1998); for October 1992 and January 2000 (Hansen and Aucott, 2001); for April 2000 and January 2003 (Hansen and Aucott, 2004);and January 2006 (fig. 6) indicate that, following development, ground-water flow remained from west to east, but that between the central part of the study area and the Little Arkansas River and in the vicinity of Halstead and Sedgwick, the flow generally became more southerly and more parallel to the river.…”

Section: Ground-water-level Changesmentioning

confidence: 99%

“…The January 2003 to January 2006 and the October 1992 to January 2006 periods (figs. 21 and 22, respectively) were selected as representative, respectively, of the cumulative change since the last report on water levels in the area (Hansen and Aucott, 2004) and of the cumulative change since the period of maximum water-level decline (Hansen and Aucott, 2001). Because January-to-January measurements can be used to minimize the effect of seasonal factors on water-level changes for year-to-year comparisons, a map of water-level changes for the period January 1993 to January 2006 ( fig.…”

Section: Ground-water-level Changesmentioning

confidence: 99%

“…The water-level-change map for the period January 2003 to January 2006 shows almost all wells in the study area experienced small cumulative water-level rises since the last report on water levels in the areas by Hansen and Aucott (2004) (fig. 21).…”

Section: Cumulative Change 2003 To 2006mentioning

confidence: 99%

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Status of ground-water levels and storage volume in the Equus Beds aquifer Near Wichita, Kansas, January 2003-January 2006

Hansen¹

2007

Scientific Investigations Report

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The Equus Beds aquifer northwest of Wichita, Kansas, was developed to supply water to Wichita residents and for irrigation in south-central Kansas. Groundwater pumping for city and agricultural use from the aquifer caused water levels to decline in a large part of the aquifer northwest of Wichita. Irrigation pumpage in the area increased substantially during the 1970s and 1980s and accelerated water-level declines. A period of water-level rises associated with greater-than-average precipitation and decreased city pumpage from the area began in 1993. An important factor in the decreased city pumpage was increased use of Cheney Reservoir as a watersupply source by the city of Wichita; as a result, city pumpage from the Equus Beds aquifer during 1993-2005 decreased to quantities similar to those pumped in the 1940s and went from being about 60 percent to about 40 percent of Wichita's water usage. Since 1995, the city also has been investigating the use of artificial recharge in the study area to meet future water-supply needs and to protect the aquifer from the intrusion of saltwater from sources to the west. During January 2006, the direction of groundwater flow in the Equus Beds aquifer in the area was generally from west to east, similar to the direction prior to development of the aquifer. Water-level changes since 1940 for the period January 2003-January 2006 ranged from a decline of more than 36 feet to a rise of more than 2 feet. Almost all wells in the area had small cumulative water-level rises from January 2003 to January 2006 and larger rises from October 1992 (period of maximum storage loss) to January 2006. The water-level rises from October 1992 to January 2006 probably are due principally to decreases in city pumpage, with increases in recharge due to increased precipitation during the period also a contributing factor. Irrigation pumpage increased during the period, so irrigation did not contribute to the rises in water levels between the beginning and end of the period.

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Section: Ground-water-level Changesmentioning

confidence: 99%

Section: Ground-water-level Changesmentioning

confidence: 99%

Section: Ground-water-level Changesmentioning

confidence: 99%

Section: Ground-water-level Changesmentioning

confidence: 99%

Section: Cumulative Change 2003 To 2006mentioning

confidence: 99%

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Status of ground-water levels and storage volume in the Equus Beds aquifer Near Wichita, Kansas, January 2003-January 2006

Hansen¹

2007

Scientific Investigations Report

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Status of groundwater levels and storage volume in the Equus Beds aquifer near Wichita, Kansas, July 2011

Hansen¹

2012

Scientific Investigations Map

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The part of the 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. The 165 square-mile study area represents about 12 percent of the 1,400 square-mile Equus Beds aquifer and accounts for about onethird of the withdrawals from the aquifer. Water-level and storage-volume decreases that began with the development of the aquifer in the 1940s reached record to nearrecord lows in January 1993. Since 1993, generally higher water levels and partial storage-volume recoveries have been recorded in the aquifer. Potentiometric maps of the shallow and deep layers of the aquifer show flow in both aquifer layers is generally from west to east. The July 2011 water-level altitudes in the shallow aquifer layer ranged from a high of about 1,470 feet in the northwest corner of the study area to a low of about 1,330 feet in the southeast corner of the study area; water-level altitudes in the deep aquifer layer ranged from a high of about 1,445 feet on the west edge of the study area to a low of about 1,340 feet in the southeast corner of the study area. In the northwest part of the study area, water-levels can be more than 60 feet higher in the shallow layer than in the deep layer of the Equus Beds aquifer. Measured water-level changes for August 1940 to July 2011 ranged from a decline of 43.22 feet to a decline of 0.17 feet and averaged 12.45 feet. The largest August 1940 to July 2011 water-level changes of 30 feet or more occurred in the northern part of the study area centered about 2 and 4 miles east of Burrton, Kansas. The change in storage volume from August 1940 to July 2011 in the study area was a decrease of about 209,000 acre-feet. This volume represents a recovery of about 46,000 acre-feet, or only about 18 percent of the storage volume previously lost between August 1940 and January 1993. The largest post-1993 storage-volume recovery to date in the study area was about 161,300 acre-feet in July 2010. The approximately 115,000 acre-feet decrease in storage volume from July 2010 to July 2011 in the study area represents a depletion of about 71 percent of storage volume previously recovered from January 1993 to July 2010; about 105,000 acre-feet of this decrease occurred between January and July 2011. Most of this depletion probably is because of decreased recharge from precipitation that at 9.26 inches for January through July 2011 was less than one-half of normal and increased irrigation pumpage associated with less-than-normal precipitation; city pumpage probably was less than average. For the study area, irrigation pumpage for 2011 was estimated at about 42,700 acre-feet and 2011 city pumpage was estimated at about 21,400 acre-feet. The approximately 29,900 acre-feet decrease in storage volume from July 2010 to July 2011 in the central part of the study area represents a depletion of about 31 percent of the storage volume previously recovered from January 1993 to July 2010. A major factor in the...

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Geochemical effects of induced stream-water and artificial recharge on the Equus Beds Aquifer, South-Central Kansas, 1995-2004

Schmidt¹,

Ziegler²,

Parkhurst³

2007

Scientific Investigations Report

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A theoretical geochemical model was developed to simulate the effects of artificially recharging fully oxygenated, treated stream water, by injection into the aquifer. Results indicate that chemical precipitation of calcite and iron oxyhydroxide are likely to occur and the potential increase of iron bacteria may combine to cause reduced efficiency of injection wells. Previous Studies This report is one of several that are based upon the extensive data set collected as part of the Equus Beds GroundWater Recharge Project. Two previous reports presented results that are pertinent to the study described in this report. The first water-quality summary report, "Baseline Water Quality and Preliminary Effects of Artificial Recharge on Ground

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Status of Ground-Water Levels and Storage Volume in the Equus Beds Aquifer Near Wichita, Kansas, July 2008

Cited by 7 publications

References 7 publications

Status of ground-water levels and storage volume in the Equus Beds aquifer Near Wichita, Kansas, January 2003-January 2006

Status of ground-water levels and storage volume in the Equus Beds aquifer Near Wichita, Kansas, January 2003-January 2006

Status of groundwater levels and storage volume in the Equus Beds aquifer near Wichita, Kansas, July 2011

Geochemical effects of induced stream-water and artificial recharge on the Equus Beds Aquifer, South-Central Kansas, 1995-2004

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