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<br />0031iJ7 <br /> <br />Page 6 <br /> <br />The Colorado River is already one of the most fully developed in the <br /> <br />nation. However, additional storage and diversion projects are being planned <br /> <br />and actively pursued throughout the basin. The u. S. Department of Interior, <br /> <br />Bureau of Reclamation, as the principal entity responsible for operation and <br /> <br />administration of the river, maintains a list of future water supply projects <br /> <br />and their depletions anticipated for implementation in each of the basin states. <br /> <br />Current water development plans of the individual states generally anticipate <br /> <br />full development of their legal entitlements by the year 2040. A listing of the <br />potential water development projects under consideration is shown in the <br /> <br />Appendix. More detailed descriptions may be found in USBR (1986). <br /> <br />B. Origins of Increased Flows <br /> <br />Additional runoff due to vegetation manipulation was assumed to originate <br /> <br />from a selected area of the Arapaho National Forest. That area is located in <br /> <br />Grand County, Colorado, and is bounded ?y the continental divide on the east and <br /> <br />southeast, Rocky Mountain National park on the northeast, the Grand County line <br /> <br />on the north to Red Slide Mountain on the northwest, and the county line on the <br /> <br />southeast to Copper Mountain. Private land within the boundary was excluded <br /> <br />from consideration. Of the remaining 561,000 acres of national forest land, <br /> <br />83,000 acres of wilderness area and designated recreation area were excluded <br /> <br />(Table II-I). Exclusion of 30 percent of the remaining acres, because of <br /> <br />steepness of slope or lack of treatable vegetation (in meadow), left 334,600 <br /> <br />acres, which were assumed to be vegetated with lodgepole pine, ponderosa pine, <br /> <br />Douglas or other firs, spruce, or aspen and available for treatment. Existing <br /> <br />or planned diversion facilities provide the potential for diverting runoff from <br /> <br />most of this acreage to the eastern side of the divide (Table II-I). <br /> <br />~ <br /> <br />J <br />