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VALUATION OF SKYLARK RANCH WATER RIGHTS <br /> December 2019 <br /> Williams Fork River are subject to calls from the 1935 and 1956 priority storage water <br /> rights of Denver's Williams Fork Reservoir located near the confluence with the <br /> Colorado River. However, most of the Skylark Ranch Water Rights are senior to the <br /> Williams Fork Reservoir storage water rights. <br /> The yields of the Skylark Ranch Water Rights were analyzed over a study period from <br /> 1988 through 2018 using the procedure outlined below. This study period includes a <br /> representative variety of wet, average, and dry years. <br /> • Determine the days in priority by comparing the administration number of the <br /> Henderson water right to the administration number of the calling water right. <br /> • Determine the physical water supply available for diversion at the Henderson <br /> points of diversion based on streamflow records. If there are no streamflow <br /> records available for the basin, the streamflow was estimated as described <br /> below. <br /> • Allocate the water physically and legally available to the Henderson water rights <br /> in order of priority from senior to junior. <br /> • Limit diversions to the season of use. <br /> • Limit diversions to the decreed diversion rates of the individual water rights and <br /> combined diversion limits. <br /> • Apply individual and combined monthly and annual volumetric limits to water <br /> rights. <br /> • Apply other decreed terms and conditions as applicable. <br /> • Compute the average annual yield during the 1988 through 2018 study period. <br /> • Limit the average annual yield by the decreed long-term running average annual <br /> volumetric limit. <br /> SCIYE Spronk Water Engineers,Inc. Page 14 <br />