|
15 Mile Reach Programmatic Biological Opinion-
<br />What does mean for future water development?
<br />The 15-Mile Reach PBO was initiated in response to endangered species issues along the Colorado
<br />River. This document allows for the continuation of existing operations on the river, and allows for up
<br />to 120,000 acre feet/year of new water development along the river, upstream of the confluence with
<br />the Gunnison River. The PBO simplifies the consultation process with the US Fish and Wildlife
<br />Service on the Endangered Species Act. This PBO does not limit the amount of water that may
<br />ultimately be available for development.
<br />~ Selected Major Basin Water Users' Water Demand Projections ~l~ ~
<br /> Water Demands (acre feet) Existing Water Supply Additional Supply
<br /> (acre feet) Needed (acre
<br /> feet)
<br />Entity Population 1970 1990 2010 2030 Ave Annual Dry Year 2030
<br /> Served (1997) Yield Yield
<br />City of Aspen 7,600 3,583 4,113 7,336 7,287 6,656 Approx. 680 AF
<br />Clifton Water 30,000 2,600 3,187 4,575 7,140 14,400 14,400 0
<br />District
<br />Ute Water 1,667 6,800 11,500 19,900 41,000 24,000 0
<br />Conservancy 50,040
<br />District
<br /> 87,640 This represents 45% of the basin population. Based on this %, an additional At least 680 AF
<br /> 300 AF or more may need to be added to the 680 AF already identified to meet
<br /> demands throughout the entire basin.
<br />Projections go out as far as the entities reported them to the Farm Bureau. Not all entities have done long term projections.
<br />Additional Supply calculations done by subtracting the lower of the Existing Water Supply numbers from the projected need in 2030.
<br />Compact Entitlements:
<br />The Colorado River Compact and the Upper Colorado River Compact affect the entire Western Slope, and entitles Colorado to
<br />the beneficial consumptive use of 51.75 % of the total water available to the Upper Colorado River Basin. Presently,
<br />consumptive use in the mainstem is approximately 1.2 maf, of which approximately 600,000 af is in the form of exports to other
<br />river basins.
<br />References
<br />1. Colorado Water Develo~ment StudX, Colorado Farm Bureau,1997
<br />2. Preliminary Po~ulation Projections, Colorado Department of Local Affairs, 2001
<br />3. Cumulative Yearly Statistics, Colorado Division of Water Resources, 2000
<br />4. Interstate Com~acts, U.S. Su~reme Court Decrees and International Treaties Affectin~ Colorado's Use of Water, Colorado
<br />Water Conservation Board,1995
<br />5. Colorado River Decision Su~port S. s~, Colorado Water Conservation Board
<br />6. Colorado Basin Outlook Re~ort, Natural Resource Conservation Service, June l, 2001
<br />7. Final Re~ort, Colorado River Com~act Water Development Projection, Endangered Fish Flow and Colorado River Compact
<br />Water Development Workgroup, 1995
<br />8. Estimated Water Use in the United States, USGS,1980,1990,1995
<br /><. For more information on this basin please ~isit http:llcwcbstate.co.us ~
<br />
|