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<br />. <br /> <br />. <br /> <br />o <br />'.:::. <br />t.:l <br />0) <br />~ <br />Q <br /> <br />that of the hydrologic system, When its performance is verified, the initial <br />model will be capable of predicting long-term (2 to 3 years) effects of water <br />management. When the model has been thoroughly tested, it will be refined as <br />necessary for more detailed short-term predictions, <br /> <br />THE OBJECTIVES OF THE ANALOG MODEL STUDY ARE: <br /> <br />1. Identify deficiencies in hydrologic field information, <br /> <br />2. Quantitative evaluation of the effect of ground-water pumpage on seepage <br />to and from the Arkansas River, <br /> <br />g, Determine the amount of water that is consumed nonbeneficially by evapo- <br />transpiration where the water table is shallow. <br /> <br />4, Evaluation of the efficiency of the surface-water distribution system, in- <br />cluding surface storage and the practice of winter irrigation, <br /> <br />5, Define areas in the Arkansas Valley where additional ground-water pump age <br />would be advantageous, including salvage of ground water now consumed <br />nonbeneficially, <br /> <br />OTHER POSSIBLE USES OF THE ANALOG MODEL ARE: <br /> <br />1. Study of the effect of increased pumpage of ground water on return flow to <br />the river, on evapotranspiration, and on aquifer storage, <br /> <br />2. Aid in the selection of sites where large- capacity wells may be developed <br />for use in satisfying surface-water rights, <br /> <br />3, Evaluation of the most efficient spacing of irrigation wells in different areas, <br /> <br />4, Outline areas where phreatophytic growth can be controlled by lowering <br />the water table by wells, determination of the number and spacing of salvage <br />wells that would be required, and evaluation of the effect of these wells on <br />seepage to and from the river, <br /> <br />5, Measure the effects of the importation of additional surface water to the <br />Arkansas Valley, <br /> <br />6, Aid in the formulation of effective management criteria for the control and <br />maintenance of water quality, <br /> <br />-5- <br />