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• McElmo Creek <br />• Dolores River <br />• San Miguel River <br />4. Yampa/White/Green Rivers Subbasin <br />• Yampa River <br />• Elk River <br />• Little Snake River <br />• White River <br />Piceance Creek <br />Approach: <br />4.1 Develop Model Briefs - Prepare a brief summary of the primary operating criteria, <br />calibration methodology, and results associated with the State's modeling (StateMod) of <br />current water supplies and demands for each of the four major Colorado River Subbasins. <br />The model briefs are intended to provide an overview of each StateMod Subbasin model, <br />prepared specifically for basin roundtable member information. The briefs will be <br />written for audiences that are well-informed on water uses within their basins, but are not <br />modeling specialists. <br />The summaries (model briefs) will be provided in a standard format consistent with the <br />CWCB's basin fact sheets and will include information on: <br />• Current CDSS hydrology generated for the early 1900's, including periods of <br />critically dry hydrology, and the appropriateness of use of that hydrology in current <br />water availability studies for the Colorado River. <br />• Current consumptive and non-consumptive demands, including transmountain <br />diversion systems. <br />• Reservoir operational criteria. <br />• Current Ugper Colorado River and San Juan River Endangered Species Recovery <br />Programs and associated operational efforts. <br />• Recent water demand model enhancements (i.e. inclusion of high altitude crop <br />coefficients) and proposed enhancements for this Study. <br />Draft model briefs will be provided to the CWCB for review and comment. CWCB <br />comments will be incorporated and the model briefs will be finalized. The final model <br />briefs will be submitted to BRT members prior to the BRT Workshops. <br />4.2 BRT Worksho s -Prepare for and attend a workshop for each of the Colorado Subbasins <br />(four total). These workshops will be combined with BRT meetings if possible and will <br />set the stage for additional workshops to be conducted in Task S. Task 4 workshops will <br />focus on the following four agenda items: <br />• Introduction and overview of study purpose and approach <br />• CDSS overview <br />Colorado River Water Availability Study Scope l0 8/28/2408 <br />CRWAS Phasel Contract Scope EX A Final <br />