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Findings of Fact,Conclusions of Law,Ruling of the Referee and Decree of the Water Court <br /> Thomas F.and Ginger L.Latham <br /> 23CW3022 <br /> Page 3 <br /> 9. Amount and Use: 12.64 acre feet per year, absolute, for evaporative loss from the 4.2 <br /> acres of exposed water surface area of the pond. <br /> 10. Name and Address of Owner of Land on Which the Structure is Located: The Applicants. <br /> 11. Remarks: Applicants request a finding that the water which collects in the Pit is not in <br /> storage. as defined in C.R.S. § 37-92-103(10.5)and that, in the administration of the water <br /> rights granted pursuant to this Application, statutes and other law relating to the storage of <br /> water, including without limitation C.R.S. § 37-92-502(3), shall not be applicable. <br /> 12. Water is available for appropriation under this priority. The Applicants have provided <br /> evidence of and the Referee specifically finds that 12.64 acre feet of water has been <br /> diverted, or otherwise captured, possessed, and controlled and has been applied to <br /> the decreed beneficial use. <br /> FINDINGS RE: SECOND CLAIM FOR RELIEF <br /> (Plan for Augmentation and Change of Water Right) <br /> 13. Structure to be Augmented: The DeBeque Gravel Pit, First Enlargement, described in the <br /> First Claim for Relief. <br /> A. Depletions: The monthly distribution of average evaporative losses from the <br /> additional 4.2 acres of exposed groundwater at the Pit is presented in Table 1. Such losses <br /> will result in depletions to the Colorado River. The timing of depletions to the river in <br /> response to evaporation from the additional 4.2 acres of exposed groundwater at the Pit <br /> was evaluated by using the Well Pumping Depletion Model (©2001, Western Water <br /> Consulting, Inc.). The analysis assumes that the alluvial aquifer is isotropic, homogeneous, <br /> of uniform thickness, and bounded by the river to the west and a no-flow boundary <br /> corresponding with the edge of the river valley to the east. The input parameters for the <br /> model include stream/aquifer geometries. transmissi‘ity (hydraulic conductivity and <br /> aquifer thickness). and specific yield. Because site-specific hydraulic data are not <br /> available, estimates of hydraulic conductivity and specific yield were obtained from <br /> literature xalues for the lithology present at the site. The input parameters used to run the <br /> model are as follow s: <br /> • Average distance from river to pit pond: 480 feet <br /> • Distance from river to no-flow boundary: 2000 feet <br /> • Transmissivity: 50,880 gallons per day per foot (gpd!ft) <br /> • Specific yield: 0.2 <br />