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<br />Upper Colorado River Basin Study <br />Scope of Work <br /> <br />October 1, 1998 <br /> <br />. -The Northern Colorado Water Conservancy District will assist in defining existing <br />and expected future operations of the Colorado-Big Thompson and Windy Gap <br />Projects. <br /> <br />. All sponsoring parties will provide available water quality data. <br /> <br />. The consultant will calculate historical and future in-basin water demands, on an <br />annual and monthly basis, for wet, dry and average hydrology years. <br /> <br />. Information from other sources including CRDSS and the SEO will be available. <br /> <br />This Plan of Study is geared to the overall study budget and schedule as set out in the <br />draft Upper Colorado River basin Group Participation Agreement. The Agreement calls <br />for an 18 month to 2 year period for Phases I and II, with an overall budget dependent on <br />funds available. <br /> <br />4. Work Tasks <br /> <br />4.1 Define Locations of Interest <br /> <br />Specific locations for which hydrologic and water quality information is desired will be <br />identified. These locations will reflect major points of diversion, storage, return flow, <br />stream confluences, significant instrearn flow reaches, whitewater rafting stream reaches <br />and stream segments with water quality implications. They will determine the spatial <br />basis for model development in Task 4.8 and will be reflected in the water resources <br />database (Task 4.2). Based on input from the August 7, 1998 meeting of the <br />Management Committee, an initial list includes the following: <br /> <br />. Blue River North of Breckenridge, just below French Gulch to evaluate water quality <br />from the Breckenridge area and the French Gulch mining district; <br />. Blue River Near Dillon, above Dillon Reservoir for hydrologic conditions and <br />impacts to fisheries; <br />. Snake River near Montezuma, which is the USGS gage nearest the mouth of the <br />Snake River to provide hydrologic conditions and may be used for water quality <br />evaluations and impacts. to fisheries; <br />. Tenmile Creek below West Tenmile confluence for basic hydrologic conditions and <br />impacts to fisheries; . <br />. Dillon Reservoir lake levels and operation including releases to the Blue River and <br />Robert's Tunnel; <br />. . Straight Creek for water quality and hydrology; <br />. Blue River below Rock Creek confluence to evaluate fisheries and white water rafting <br />(not a PACSM node); <br />. Green Mountain Reservoir levels and operation including releases to the Blue River; <br />. Blue River at the confluence with the Colorado for hydrologic conditions; <br />3 <br />