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• <br />cfs would theoretically eliminate the continued growth of the <br />groundwater mound. Pumping the mound at 70 cfs could possibly <br />eliminate the growth of the mound and the export of groundwater to <br />the Republican and Little Blue Rivers. The five scenarios that have <br />been evaluated are as follows: <br />1. Pump from the mound up to 51,000 ac -ft/yr (equivalent to a <br />constant rate of about 70 cfs) and discharge water to the Platte <br />River during periods of target flow shortages. <br />2. Pump from the mound up to 36,500 ac -ft/yr (equivalent to a <br />constant rate of about 50 cfs) and discharge water to the Platte <br />River during periods of target flow shortages. <br />3. Pump from the mound up to 14,500 ac -ft /yr (equivalent to a <br />constant rate of about 20 cfs) and discharge water to the Platte <br />River during periods of target flow shortages. <br />4. Pump from the mound up to 14,500 ac -ft/yr (equivalent to a <br />constant rate of about 20 cfs) for irrigation of lands previously <br />irrigated by surface water. <br />5. Pump from the mound up to 51,000 ac -ft/yr (equivalent to a <br />constant rate of about 50 cfs) for irrigation of lands previously <br />irrigated by surface water. <br />Each scenario is described in more detail below. <br />It was assumed that projects involving pumping from the mound <br />would be implemented in areas where the water table is near the <br />surface or in areas further from the river. Pumping from areas that are <br />further from the river increases the likelihood that the majority of the <br />water pumped is from the mound growth and transbasin exports rather <br />than Platte River return flows. Any rate of pumping would take some <br />amount of water from the mound, some from transbasin exports, and <br />some return flows to the Platte River. Alternatives were assumed to be <br />located further from the river to increase the likelihood that the <br />majority of the water pumped is from the mound growth and <br />transbasin exports rather than Platte River return flows. These <br />scenarios are not intended to suggest that any one component of flow <br />can be captured, rather they are intended to provide a range of impacts <br />for pumping the mound at various rates. <br />8 -G -57 <br />