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Show TABLE LC-9-Colorado River System Consumptive Uses and Losses Report, P.L. 90-537 Lower Colorado River Basin Colorado River Mainstream Estimated Channel Losses, Davis Dam to International Boundary1 1971-75 (1.000 A.F.) Water Year Drainage Area (1,000 sq. mi.) 1971 1972 1973 1974 1975 1971-73 I Colorado River below Davis Dam, Nev.-Ariz. Lake Evaporation, Lake Havasu-Senator Wash Reservoirs-Others (Table LC-1) Change in Lake Contents, Lake Havasu-Senator Wash (Table LC-2) Mainstream Consumptive Use and Exports (Table LC-3) Nevada 2 Arizona 3 California Mexico Estimated Tributary Surface water inflow 4 Apparent Channel Losses below Davis Dam 5 Totals 169.3 8,266 8,453 7,932 8,844 8.179 8,335 176 178 154 171 171 170 24 15 12 R 4 11 11 13 14 11 1, 181 1,129 1,067 1,184 1,207 1.154 5, 122 5,328 5,068 5,475 4,937 5.186 1, 561 1,600 1,594 1.720 1,656 1.626 73.8 243.1 60 30 310 40 40 258 252 353 317 222 96 280 8,326 8,326 8,498 4,498 8,247 8,247 8,884 8,884 8,219 8.219 8.431 8.431 1 Inflow (I) - Outflow (0). Outflow to Mexico (export) is made up of measured discharge of the Colorado River above Morelos Dam and the various wasteways, drains, and canals flowing to the Colorado River between the northerly and southerly international boundaries ano at the Arizona-Sonora boundary. * Includes Mohave Powerplant and minor domestic and agricultural water uses. 3 Table LC-3 less water use for Lake Mead National Recreation Area and Davis Dam and Government Camp. * Subsurface inflow from tributary area and reduction in ground water storage (Yuma Area) is assumed to balance subsurface outflow to Mexico. Estimated surface water inflow includes Bill Williams and Gila Rivers and a remaining area of about 10,710 square miles. * Computed. APPENDIX XII XII-83 |