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<br />CONCLUSIONS <br /> <br />'. <br /> <br />. . <br /> <br />. <br /> <br />1. The travel time of releases from Twin Lakes Reservoir to Colo- <br />rado Canal ranges from 29 to 69 hours depending on the flow of the <br />Arkansas River. Travel time of releases from Turquoise Lake is 4~ hours <br />more while releases from Clear Creek Reservoir is 2~ hours less. <br /> <br />2. Releases from Twin Lakes Reservoir to Colorado Canal are modi- <br />fied by channel storage, bank storage, inadvertent diversions, and <br />evapotranspiration. <br /> <br />3. For releases up to 500 ft3/s, channel storage ranges from 0 to <br />440 ft3/s depending on the time since the release arrived at Colorado <br />Canal and the amount of the release. During the release recession, all <br />water in channel storage arrives at Colorado Canal head gate soon enough <br />to be diverted. Channel storage, therefore, is not a source of transit <br />loss. <br /> <br />4. For releases up to 500 ft3/s, the average rate of bank storage <br />ranges from 0 to 445 ft3/s depending on the flow of the Arkansas River <br />at time of release, the amount of the release, and the time since the <br />release arrived at Colorado Canal. During the release recession, 70 <br />percent of the water in bank storage is not divertible. Bank storage, <br />therefore, results in a transit loss which is generally about 7 percent <br />of the release depending on the duration of the release. <br /> <br />5. Inadvertent diversions range from 5 to about 47 ft3/s depending <br />on the flow of the Arkansas River at time of release and the amount of <br />the release. Most inadvertent diversions are not compensated for during <br />the release period. Inadvertent diversions, therefore, result in a <br />transit loss which is generally about 8 percent of a typical release. <br /> <br />. <br /> <br />6. Evaporation loss occurs due to the increases both in river sur- <br />face area and in river temperature during a release. Sources of transit <br />loss due to evaporation depend on the flow of the Arkansas River at time <br />of release, the month of the year, and the amount of the release. Evap- <br />oration due to increased surface area ranges from 0 to 4.5 ft3/s or <br />about 1 percent of the release. Evaporation due to increased river <br />temperature ranges from 0 to 1.3 ft3/s or less than 1 percent of the <br />release. <br /> <br />7. Transpiration loss due to bank storage is assumed to be <br />negligible. <br /> <br />8. Releases from Twin Lakes Reservoir to Colorado Canal are gen- <br />erally subject to a total loss of about 16 percent while in transit down <br />the Arkansas River. <br /> <br />38 <br /> <br />. <br />