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<br />Table 1 Summary of Colorado River Transbasin Exports <br /> <br />Name of Export Current Demand Level <br /> Water Year Amount (af) <br />Moffat Tunnel (includes Gumlick) 1990 67,388 <br />Eureka Ditch t992 109 <br />Wurtz Ditch 1991 2,267 <br />Boreas Pass Ditch 1992 95 <br />Grand River Ditch 1992 21,356 <br />Berthoud Pass Ditch 1992 1,009 <br />Columbine Ditch 1990 1,485 <br />Ewing Ditch 1990 786 <br />Hoosier Pass Tunnel 1991 12,360 <br />Roaring Fork Tunnels 1990 93,745 <br />(Busk-Ivanhoe, Charles H. Boustead, and <br />Twin Lakes Tunnels) <br />Harold D. Roberts Tunnel 1992 85,540 <br />Windy Gap 1992 21,533 <br />(Alva B. Adams Tunnel) <br />CBT (I) 226,602 (2) <br />(Alva B. Adams Tunnel) <br />Homestake Tunnel (I) 23,310 <br /> <br />(I) No adjusbnents made. Volume stated is average for the study period. <br />(2) Volume includes Windy Gap diversions back to 1985. <br /> <br />If the amount was less than shown in Table I then the incremental monthly difference was subtracted <br />from the monthly recorded gaged flow. <br /> <br />Imports associated with the Sarvis and Stillwater ditches which originate in the Yampa River Basin <br />and deliver water to the Colorado River mainstem were also considered. The total yearly inflow, by <br />these ditches, was 1900 af/year distributed evenly throughout the irrigation season. <br /> <br />The total monthly transmountain depletion was limited to the amounts that would not reduce the <br />Colorado River Cameo gage flows below 2260 cfs. This flow rate represents the amount of flow <br />typically called for by the Grand Valley water users to meet both senior irrigation and power <br />demands. <br /> <br />8 <br />