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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />Transi t Losses <br /> <br />Because the point of return flows for the Keesee Ditch has been changed <br />from the stream reach adjacent to the ditch upstream to John Martin Reservoir, <br />releases to the stream to account for historical return flows will have to be <br />augmented a small amount in order to ensure delivery to the original downstream <br />location. <br /> <br />Transit losses are presently calculated by the Division Engineer using the <br />Livingston Methodl. The amount of loss is a function of river conditions and <br />varies daily. Under most conditions, the amount of transit loss assessed will <br />be less than 1.0% of the release amount up to a maximum of about 4.0%. <br />Therefore, the average annual return flow obligation of 1,487 acre-feet must <br />be supplemented by an additional 15 to 60 acre-feet in order to effect downstream <br />delivery at the historical point of return. The amount of water to be exchanged <br />upstream would be reduced accordingly. <br /> <br />1 <br /> <br />Livingston, Russel K., 1978, Transit Losses and Traveltimes of Reservoir <br />Releases Along the Arkansas River from Pueblo Reservoir to John Martin <br />Reservoir, Southeastern Colorado: U.S. Geological Survey, Water Resources <br />Investigations 78-75. <br /> <br />I <br />I <br /> <br />-10- <br />