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Page 2 <br /> CONCLUSIONS AND RECOMMENDATIONS <br /> CONCLUSIONS <br /> 1 . There are three significant aquifers in the study area <br /> covered by this report. They are,in order of increasing depth, the <br /> Ogallala Formation, Dakota Sandstone and Cheyenne Sandstone. <br /> 2. All three of the aquifers extend beyond the study limits, <br /> but the water in each one flows to the east and remains in the study area <br /> until reaching the border of the state. Therefore, ground water origin- <br /> ating in or moving into the study area is not tributary to any major river <br /> in Colorado. The description of the study area boundary is contained in <br /> Appendix 1. <br /> 3. The quantities of water stored in each of the aquifers <br /> has been estimated. Not all of this water is readily recoverable due to <br /> physical and economic limitations so it is assumed that 7516 of the water <br /> in storage could be utilized. Estimates of these amounts are as follows: <br /> WATER IN STORAGE <br /> Stored Recoverable <br /> Aquifer Acre-Feet Acre-Feet <br /> Ogallala Formation 6, 820, 000 5, 120, 000 <br /> Dakota Sandstone 6, 480, 000 4, 860, 000 <br /> Cheyenne Sandstone 39, 600, 000 29, 700, 000 <br /> Total 52, 900, 000 39, 680, 000 <br /> 4. The quantity of recharge to the three aquifers is <br /> estimated to be: <br /> ANNUAL RATE OF RECHARGE <br /> Recharge <br /> Aquifer Acre-Feet <br /> Ogallala Formation 63, 800 <br /> Dakota Sandstone 91900 <br /> Cheyenne Sandstone 20, 200 <br /> Total 93, 900 <br />