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<br />. <br /> <br />n(),~,'q..,'l <br />U,}I(, \-_ f <: <br /> <br />. <br /> <br />PART IX. VIRGIN FLOWS OF THE SAN JUAN RIVER <br /> <br />. <br /> <br />The virgin flow of the San Juan River is equal to the sum of the historic <br /> <br /> <br />streamflow and the historic depletions including itTigation depletions, reservoir <br /> <br /> <br />evaporation and transbasin diversions. Historic stream flows are presented in <br /> <br /> <br />Appendix B and historic depletions are presented in Appendix E. Average annual <br /> <br /> <br />historic river flows, depletions, and virgin river flows at selected locations <br /> <br />. <br /> <br />are presented below. <br /> Historic Historic Virgin <br />Location River Flow Depletions River Flow <br />San Juan River <br />above Mouth of Navajo River 324,600 AF 31,ZOO AF 355,900 AF <br />Navajo River <br />at Mouth 108,800 AF Z4,400 AF 133,200 AF <br />San Juan River <br />above Navajo Reservoir 439,600 AF 56,100 AF 495,800 AF <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />For the entire San Juan River basin upstream from Navajo Reservoir, the annual <br /> <br /> <br />historic depletions averaged 11 percent of the virgin river flow. Monthly <br /> <br /> <br />summaries of virgin river flow in the San Juan River basin are presented in <br /> <br /> <br />Appendix F. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />-26- <br /> <br />. <br /> <br />JL. <~ <br />