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WATER LEVELS IN THE SOUTHERN HIGH PLAINS <br />DESIGNATED GROUND WATER BASIN -1995 <br />The purpose of this report is to provide 1995 water level measurements from monitoring wells in the <br />Southern High Plains Designated Ground Water Basin. The project is ongoing, with the cooperation <br />of local well owners as well as the Southern High Plains Ground Water Management District <br />(SHPGWMD). Funding for the project is provided in part by utilizing revenues generated by Senate <br />Bill 200, passed during the 1987 legislative session. Well measurements of water levels were <br />conducted by the SHPGWMD under contract with and supervision by the Colorado Division of Water <br />Resources (DWR). <br />In the 1995 measuring period, a total of 76 well sites were visited, including two measurements from <br />Colorado Interstate Gas Company and two from the Town of Springfield. Four wells were not <br />measured, primarily because of access problems, and the fifth well, #SC03404715BAA, was <br />pumping at the time a measurement was to be taken. Two new wells, (SCO2804835DCD and <br />SC031050007ACC), were added to the network in the 1994 measurements. Four wells were re- <br />measured, with subsequent rises recorded in 'Remarks.' Measurements were made starting January <br />13, 1995, and were completed by February 17, 1995. <br />The aquifer designations used on the following hydrographs, data sheets and figures are as shown <br />in the following Table 1. <br />Table 1 - Aquifer Descriptions <br />' Arithmetic average of monitored wells. ** estimated - no data available. <br />*< = slightly less than <br />*> = slightly greater than <br />Avg. Sat. <br />Total <br />Symbol <br />Name <br />Thickness' <br />Thickness <br />Description <br />To <br />Ogallala aquifer <br />* > 50 <br />0-200 ft. <br />Sand, gravel, sift, clay <br />and limestone. <br />Kd <br />Dakota aquifer <br />* < 75 <br />80-150 ft. <br />Fine grained, thin to <br />massive sandstone with <br />clayey to sandy shales, <br />light to dark brown. <br />Kc <br />Cheyenne aquifer <br />* < 100 <br />40-250 ft. <br />Fine grained, massive <br />light-colored sandstone. <br />TRd <br />Dockum aquifer <br />50** (est'd) <br />0-570 ft. <br />Red siltstone, shales, <br />limestones, and red to buff, <br />fine to coarse sandstone. <br />' Arithmetic average of monitored wells. ** estimated - no data available. <br />*< = slightly less than <br />*> = slightly greater than <br />