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Table 5 <br />Aggregate Stock Pond Surface Area by Water District <br />In the South Platte and North Platte River Basins <br /> <br /> <br /> <br />iver Basin <br /> <br />Water <br />District Livestock <br /> <br />Tank/Erosion <br />Control Volume <br />Acre-ft Decreed <br /> <br />Volume <br />< 30 <br />Acre-ft <br />Total <br /> <br />Volume <br />(Acre-ft) Estimated <br /> <br />Surface <br />Area <br />Acres <br />South Platte 1 52,084 430 52,514 5,251 <br /> 2 1,139 112 1,251 125 <br /> 3 2,176 141 2,317 232 <br /> 4 919 252 1,171 117 <br /> 5 464 266 730 73 <br /> 6 1,337 211 1,548 155 <br /> 7 383 67 450 45 <br /> 8 22,155 382 22,537 2,254 <br /> 9 584 32 616 62 <br /> 23 3,007 251 3,258 326 <br /> 48 - - - - <br /> 64 6,083 112 6,195 620 <br /> 76 - - - - <br /> 80 22 111 133 13 <br /> Total 90,353 2,367 92,720 9,272 <br /> <br />North Platte 47 1,944 295 2,239 224 <br />Evaporation Results <br />Net monthly evaporation for aggregate reservoirs, using evaporation rates estimated in SPDSS <br />Task 53.3, is shown in Table 6. Net monthly evaporation for aggregate stock ponds is shown in <br />Table 7. Note that the values shown represent estimated average annual net evaporation <br />Aggregate reservoirs are generally drawn down during the irrigation season, and filled during the <br />non-irrigation season. To represent the fact that the reservoirs and stock ponds are not full year- <br />round, evaporation rates have been applied to the 75 percent of the full surface area. Stock ponds <br />areas have not been split into above and below 6500 feet, and evaporation rates used are based <br />on the lower portion of each Water District, where applicable. These evaporation estimates will <br />be used in the Consumptive Uses and Losses Summary and the Water Budget analysis. <br />Page 10 of 14 <br />