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<br />N <br />c.:J <br />C? <br />Co <br /> <br />Table 2.--Mass balance for site 2, streamflow-gaging station 09095500 Colorado River <br />near Cameo, Colo., for water years 1914-57' <br /> <br />[---, no data] <br /> <br />Mass-balance component <br /> <br />Drainage <br />area <br />(square <br />roiles) <br /> <br />Irrigated <br />area <br />(acres) <br /> <br />Historical conditions <br /> <br />Colorado River near Cameo, Colo.------ 8,050 <br /> <br />163,400 <br /> <br />Adjustments for development <br /> <br />Irrigation: <br />Roaring Fork River basin----------- <br />Remaining drainage area------------ <br /> <br />Transbasin diversions: <br />Twin Lakes tunnel and <br />Busk-Ivanhoe tunnel--------------- <br /> <br />1,451 <br />2,039 <br /> <br />31,400 <br />48,300 <br /> <br />Mean 8Ilnual <br />streamflow <br />(acre-feet) <br /> <br />2,998,000 <br /> <br />(+)34,540 <br />(+)77 ,830 <br /> <br />Mean annual <br />dissolved- <br />solids <br />discharge <br />(tons) <br /> <br />1,578,000 <br /> <br /> <br />(-)107,800 <br />(-)144,910 <br /> <br />Effects in u~stream areas: <br />Colorado River near Glenwood <br />Springs, Colo.------------------- 4,560 <br /> <br /> 2(+)37,500 (+)3,060 <br /> :'! <br /> ',', <br />83,700 (+)395,350 (-)108,260 ,1 <br /> <br />Natural conditions <br /> <br />Colorado River near Cameo. Colo.------ <br /> <br />3,543,220 <br /> <br />1,220,090 <br /> <br /> <br />Estimated mean annual natural dissolved-solids concentration for water years 1914-57: <br />255 milligrams per liter <br /> <br />'Based on Iorns and others (1965), <br />2Mean annual value for water years 1954-57. <br /> <br />9 <br />