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Water Levels in the Southern High Plains <br />Designated Ground Water Basin - 1998 <br />Page 3 <br />The reader will note that where water level is zero with no additional data entry, that no water <br />level measurement was taken during those subsequent measurement periods. <br />The average decline of water level within the network was -2.00 feet for 1998 as compared to <br />-1.35 feet for 1997 and -2.95 for 1996. <br />The average rise in water level was 1.21 feet for 1998 as compared to 2.28 feet in 1997 and <br />1.10 in 1996. <br />A map depicting the location of monitoring wells, as well as individual well data and selected <br />well hydrographs, has been modified by GPS information and replacement well information and <br />follows this text. Additionally, a listing entitled "Well Locations" lists the GPS results for all well <br />sites visited in 1996. and 1997 and utilized in the GIS map as well as 1997 data not yet <br />incorporated in the map. <br />Ogallala Aquifer <br />A total of eight wells completed wholly or in part within the Ogallala aquifer experienced declines <br />of -0.20 to -3.50 feet. Numerous wells experienced rises in water levels. The average rise was <br />+ 1.03 feet as compared to + 1.82 feet of rise in 1997. In 1997-1998 the average decline of <br />Ogallala wells was -1.87 feet. The average of all changes was -0.91 feet of decline, once again <br />with primarily declines for northeastern Baca and southeastern Prowers counties as it was in <br />1994-1996. <br />