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River Flows Leaving Colorado <br />by River Basin (acre - feet) <br />Arkansas - 164,000 <br />Total = 10,074,000 Acre-Feet <br />Yampa - 1,530,000 <br />Colorado - 2,628,000 <br />White - 560,000 <br />South Platte - <br />400,000 <br />Dolores - 510,000 <br />San Juan - <br />1,780,000 <br />Rio Grande - <br />Gunnison - <br />North Platte - <br />320,000 <br />1,872,000 <br />310,000 <br />Prepared by the Hydrographic Branch (2003 Revision), Office of t he State Engineer - Colorado Division of <br />Water Resources. Historic averages obtained from USGS Water - Data Report CO - 02. <br />37 <br />Average Annual Water Availability – <br />South Platte <br />198,100 AF <br />306,000 AF <br />196,000 AF <br />36,000 AF <br />30,000 AF <br />38 <br />19 <br />