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<br />Product Produced: The purpose of this two-year study is to quantify and map the ground-water <br />resources within the study area, on a regional scale, for integration in existing or planned conjunctive <br />use management programs. SWSI has estimated an 18% shortfall on estimated 2030 water demands for . <br />the Arkansas River basin. Counties, municipalities, water supply districts, conservation districts, and the <br />state are seeking more efficient ways to meet water demands with limited supplies while protecting in- <br />state water rights and deliveries required by interstate compacts. <br /> <br />The Dakota-Cheyenne aquifer is the most extensive water-yielding unit in southeastern Colorado. <br />Detailed hydrogeologic knowledge of this aquifer is not readily available, and is essential for planning <br />efforts and informed decision making related to this regional ground-water resource. Utilizing <br />information from petroleum production wells, water wells, and data compiled for the Ground Water <br />Atlas of Colorado, this study will outline areas of recharge and discharge, aquifer physical <br />characteristics, and aquifer hydrologic characteristics. The results will be provided as GIS-compatible <br />digital files and a map-series summary report. <br /> <br />Water Planning Relationship: This study assists local, regional, and state entities in planning and <br />executing water supply management and water policy decision-making by providing detailed <br />groundwater resource information. <br /> <br />Recommendation: Staff gives a medium recommendation to funding for this program since it will <br />benefit local water planners as funding becomes available. <br /> <br />6. Gunnison River Transit Loss Study <br /> <br />Beneficiary/Grantee/Contractor: CWCB, Various, USGS <br />Amount of Request: $50,000 <br /> <br />Ranking: <br /> <br />High <br /> <br />. <br /> <br />Product Produced: In March 1994, the Department of the Interior designated 1,980 stream miles of <br />the Colorado River basin as "critical habitat" for the endangered Colorado pikeminnow, razorback <br />sucker, bony tail, and humpback chub. The designated critical habitat includes the Gunnison River from <br />Delta downstream to the confluence with the Colorado River at Grand Junction, Colorado. Management <br />of contract releases of water to the designated critical habitat requires an understanding of instream <br />transit losses, The proposed study will provide CWCS with transit loss information for the Gunnison <br />River below Crystal Reservoir downstream to Whitewater, Colorado. This information will be used by <br />river managers and aquatic biologists to manage water stored in upstream rcscrvoirs for release to <br />critical habitat primarily during periods of low streamflow. The project will investigate the effect of <br />tributary inflows, streamflow diversions, return flows from irrigated areas, and travel-times on instream <br />transit losses. Project results will enhance the capability to deliver reservoir releases for river <br />administration and for critical habitat in the lower Gunnison River. <br /> <br />Water Planning Relationship: Local planning and river administration improved through better <br />accounting of reservoir releases and improved controls on maintenance of critical habitat. <br /> <br />Recommendation: Staff gives a high recommendation to funding for this program because of its <br />importance in local water planning efforts. <br /> <br />7. FountainlMonument Creeks Transit Loss Study, Phase 2: Update <br /> <br />Beneficiary/Grantee/Contractor: CWCS, Various, USGS <br />Amount of Request: $50,000 <br /> <br />Ranking: <br /> <br />High <br /> <br />6 <br />