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<br />01/28/99 . ~HU 09:50 FAX 1 505~76188 <br /> <br />STATE ENGINEER OFFICE <br /> <br />:.. <br /> <br />1aI004 <br /> <br />o <br />o <br />("") <br />W <br />--J <br />0> <br /> <br />be used and maintained for Section 7 consultations, how baseline <br /> <br />and project depletions in the Basin will be determined, and how <br /> <br />model reviews will be conducted and model decisions will be made. <br /> <br />How the Riverware model is to be used in Section 7 <br /> <br />consultations might be somewhat dependant on how the flow <br /> <br />recommendations for the San Juan River below Farmington are <br /> <br />considered in the consultations, but the use of the flow <br /> <br />recommendations is an issue that is not addressed herein. <br /> <br />However, because the flow recommendations for the San Juan <br /> <br />River are in the form of long-term average flow statistics, a model <br /> <br />must be used to analyze in advance the impacts a project may have <br /> <br />on river flows and whether the project can be operated in such a <br /> <br />manner as to satisfy the flow recommendations. <br /> <br />As. of now, the <br /> <br />fortran model and the CRDSS model for the Basin are not set up to <br /> <br />perform this analysis, but the Riverware model with its data pre- <br /> <br />processors and output post-processors is so set up. While this may <br /> <br />suggest that it is convenient at this time to use the Riverware <br /> <br />model in Section 7 consultations, with or without model <br /> <br />improvements, the possibility of using or developing other <br /> <br />hydrologic models to perform the same analysis should not be <br /> <br />foreclosed. <br /> <br />Only the Bureau of Reclamation and consultants to the Bureau <br /> <br />3 <br />