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Water Levels in the Southern High Plains <br />Designated Ground Water Basin - 1994 <br />water level declines = 46 wells <br />water level rises = 23 wells <br />no measured change in water level = 8 wells <br />The average decline of water level within the network was 3.31 feet. <br />The average rise in water level was 2.28 feet. <br />Page 2 <br />A map depicting the location of monitoring wells, as well as individual well data and selected well <br />hydrographs, follow this text. <br />Water level change maps are scheduled for the 1995 report. Water level trends from March 1990 <br />to 1994 are as follows: <br />Ogallala Aquifer <br />The Ogallala aquifer experienced typical declines of 2-5 feet, with an extreme of 19.6, as noted <br />below. Some areas experienced a rise in water levels. The area of greater decline of water table <br />in the Ogallala aquifer again in 1994, as it was in 1993, is northeastern Baca and southeastern <br />Prowers counties. A small area northeast of Stonington has a substantial decline of 19.6 feet. <br />Dakota Aquifer <br />Again, as in 1993, 1994 water level data indicates northeastern Baca and Southeastern Prowers <br />counties' areas with the greatest decline in water levels, approximately 4 to 5 feet. Again, also in <br />1994, the greatest decline in water level in the Dakota aquifer is in the area near Blaine. The 1994 <br />arithmetic average of decline is 3.85 feet, with a range of 0.4 to 18.5 feet. <br />Cheyenne Aquifer <br />The area of greatest decline in water levels of wells penetrating the Cheyenne aquifer was only just <br />west of Bartlett where a 19.10 feet decline was recorded in 1994. The range of decline of the <br />Cheyenne aquifer for 1994 are generally 0.5-1.1 foot. <br />Dockum Aquifer <br />The Dockum aquifer declines range from an average of 2.80 feet in southwest Baca County to 13.4 <br />feet of decline southeast of Stonington. The arithmetic average of Dockum aquifer declines over <br />the entire network is 2.08 feet. <br />DakotaICheyenne Aguifer <br />The declines in the Dakota -Cheyenne aquifer lie within the 12 -mile strip trending northeasterly 6 <br />miles either side of Blaine for approximately a 30 -mile length within which there is a decline of 5.00 <br />feet or more. The area weighted average decline is approximated at 6.40 feet within this 300 square <br />mile northeasterly trending corridor. <br />The 1990-1995 water level change maps will be available in the summer of 1995. These maps may <br />be inspected or copies purchased at the Denver office of the Colorado Division of Water Resources, <br />1313 Sherman Street, Room 818, Denver, Colorado 80203. <br />4698R.CR <br />