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<br />. <br /> <br />. <br /> <br />. <br /> <br />includes the communities of Burlington and Wray. One ofthe components of water use not well <br />documented is the use of tributary groundwater in the basin. This is the issue that Kansas is <br />alleging that Nebraska is overusing in its allocation under the compact. Colorado will have to <br />participate in the litigation and must protect its interests and water users. It will be necessary to <br />collect detailed field information on ground water use and potentially on power used by wells in <br />the last 30 years. Also, well locations and aquifer properties may have to be verified in the field, <br />if the file information is incomplete. The request for $75,000 would pay for work by consultants <br />or part-time staff to collect the data and analyze it. A report on the amount of water consumed in <br />the basin by wells would be the final product of the study. <br /> <br />Delta County - Water Svstem Inventorv <br /> <br />In 1978, an inventory of all the water systems in Delta was conducted. A total of 100 people <br />were interviewed to determine the physical and economic characteristics of each water system. This <br />included a description of the purpose, location, capacity, return flows, water quality, and future needs <br />of each system. A report was prepared which recommended improvements in irrigation efficiency <br />and reductions in chemical fertilizer applications. <br /> <br />Now, 20 years later, the county wants to update the inventory in an electronic format. Off the <br />shelf Geographic Information System (GIS) software, such as "Arcview" and "Pipeline," will be <br />used to keep it simple and to minimize costs. The new database, accessible through the Internet, <br />will allow anyone to see a graphical picture of water use anywhere in the county. The update is <br />estimated to cost a total of$40,000 including new interviews, hardware, software, installation, data <br />entry, testing, and training. Because the system could be a model for other counties, we propose <br />to fund up to $20,000 from FY 2000 Severance Tax moneys that might become available to the <br />CWCS. <br /> <br />Southern High Plains Groundwater Management District - Groundwater Aquifer Studv <br /> <br />The Southern High Plains Groundwater Management District is organizing a stakeholder <br />group with technical assistance supported with FY99 Severance Tax funds to develop a scope of <br />work for an aquifer investigation. The District's Board of Directors and the Baca and Prowers <br />County Commissioners are concerned that they are the last of the "designated ground water <br />basins" that do not restrict the availability of new large capacity wells. Residential and irrigation <br />users are disturbed because the ground water table in this southwestern portion ofthe Oglala <br />Aquifer is dropping steadily. In order to adopt rules or adopt other measures to protect the future <br />value of existing supplies, the District needs assistance with the evaluation of existing data and <br />may need to develop addition monitoring wells. Each monitoring well is likely to cost <br />approximately $6,000 (based upon an average depth of 400 feet). Four to eight wells may be <br />needed in addition to engineering investigations that are likely to cost $30-50,000. A <br />placeholder of $75,000 is recommended. <br /> <br />3 <br />