Digital Model to Predict Effects of Pumping from the Arikaree Aquifer in the Dwyer Area, Southeastern Wyoming.

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Abstract: ^ digital computer model was used to model an unconfined sandstone aquifer (Arikaree aquifer) in about 340 square miles (880 square kilometers) in southeastern Wyoming. The model was calibrated by comparing observed and calculated changes in the potentiometric surface and leakage from the aquifer along streams during water year 1974. The comparison was fairly good for changes in the potentiometric surface and was good for leakage. The calibrated model was used to predict changes in the potentiometric surface and leakage through water year 1979, assuming no new ground-water development after 1974 and normal recharge to the aquifer. Water-level declines ... continued below

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34 p. , ill. ; 28 cm.

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Lines, Gregory C. Creation Date: Unknown.

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Abstract: ^ digital computer model was used to model an unconfined sandstone aquifer (Arikaree aquifer) in about 340 square miles (880 square kilometers) in southeastern Wyoming. The model was calibrated by comparing observed and calculated changes in the
potentiometric surface and leakage from the aquifer along streams during water year 1974. The comparison was fairly good for changes in the potentiometric surface and was good for leakage. The calibrated model was used to predict changes in the potentiometric surface and leakage through water year 1979, assuming no new ground-water development after 1974 and normal recharge to the aquifer. Water-level declines of as much as 14 feet (4.3 meters) were predicted, but much of the area would be relatively unaffected. The total predicted decrease in leakage between water years 1974 and 1979 was about 500 acre-feet (0.6 cubic hectometer) per year; the greatest decrease was predicted along streams closest to areas of pumpage.

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34 p. , ill. ; 28 cm.

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  • April 27, 2017, 7:35 p.m.

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  • June 29, 2017, 12:52 p.m.

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Lines, Gregory C. Digital Model to Predict Effects of Pumping from the Arikaree Aquifer in the Dwyer Area, Southeastern Wyoming., report, Date Unknown; United States. (digital.library.unt.edu/ark:/67531/metadc968339/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.