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<br />CCIGUO <br /> <br />CONTENTS <br /> <br />Page <br /> <br />Executive summary ......... ................................... ........... ....................................................................... vi <br />Abstract ............ ........................................ ...... ..,........................................................................... ,......... 1 <br />Introduction......... ..................................... ........... ..................................... ....................... .......... ............ 1 <br /> <br />Pu~ose ~nd sc?pe :.............................................. ................................................................ ....... 3 <br />PreviOUS investigations.... ............ ............................................................... ............................... 4 <br />Acknowledgments .......................................................................................................... ............ 5 <br /> <br />Hydrologic relations between the Rio Grande and the Santa Fe Group aquifer system ....,...... 6 <br /> <br /> <br />Physical and hydraulic characteristics of system components ........................,................... 7 <br /> <br />Rio Grande ......................................................................................................................... 10 <br />Canals.....................................:............. ...... ............................ ............................................. 12 <br />Drains .................................................................................................................... ......... ..... 13 <br />Santa Fe Group ...........................................,...................................................................... 13 <br />Inner valley alluvium ....................................................................................................... 18 <br />Hydraulic heads ...................... ................. ......................................................................... 19 <br />Aquifer storage ............................................................... .................... ............................... 20 <br /> <br />Flow characteristics of system components .......................................................................,.... 22 <br /> <br />Ground-water withdrawal..........,............................................................................,....... 22 <br />Santa Fe Group aquifer system ....................................................................................,.. 24 <br />Rio Grande, canal, and drain seepage................,...............................,........................,.., 24 <br />Basin-margin and tributary recharge ............................................................................. 26 <br />Riparian and wetland evapotranspiration .......................................................,............ 27 <br /> <br />Irrigation seepage....... .................................................... ............... .................................... 28 <br />Septic-field seepage............................ .............................................................................., 28 <br /> <br />Summary of information needs ................................................................................................ 29 <br /> <br />Plan of study ..................................,....................................,.................................................................. 31 <br /> <br />Update and adjust the Albuquerque Basin ground-water-flow model.................... 34 <br />Expand observation-well network ................................................................................ 34 <br />Install piezometers below the Rio Grande ...........................,..,..,.................................. 34 <br />Monitor observation-well network................................................................................. 35 <br />Compile and automate ground-water-withdrawal data............................................. 35 <br />Determine production zones within large-capacity production wells...................... 36 <br />Monitor the Rio Grande, canal, and drain .flows ....,..,...................,............................. 36 <br />Define canal and drain physical characteristics..................................................,......... 37 <br />Conduct and analyze aquifer tests ................................................................................ 37 <br />Update inventories of land cover and Rio Grande surface-water system................ 38 <br />Determine distribution of lithologies in the inner valley alluvium........................... 39 <br />Monitor extensometer and geodetic network............................................................... 39 <br />Analyze temperature profiles in piezometers below the Rio Grande ....................... 40 <br /> <br />ili <br />