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December 1 to February 14, each state has the right to use all water within its <br />boundaries. For the remainder of the year, February 15 to November 30, allocation <br />for La Plata River water is performed according to the following guidelines: <br />1. If the flow at Interstate Station is greater than or equal to 100 cubic feet per <br />second (cfs), each state has unrestricted rights to all water within its boundaries. <br />2. If the flow at Interstate Station is less than 100 cfs, the State of Colorado shall <br />deliver at the Interstate Station a quantity of water equal to one-half of the mean <br />flow at the Hesperus Station for the preceding day, not to exceed 100 cfs. <br />During periods of extreme low flow, the guidelines above may be superseded by a method of <br />administration that allows the delivery of all available water successively to each state in <br />alternating periods. When flow at the Hesperus Station is less than 30 cfs, the lower reaches <br />of the La Plata will run dry, and Colorado cannot deliver any water in accordance with No. 2 <br />above. Figure 1.1 shows the general layout of the San Juan and Dolores river basins. <br />San Juan & Dolores River Basin Information 1-6 <br />