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<br />. <br /> <br />., <br /> <br />.. <br /> <br />. <br /> <br />. <br /> <br />A significant amount of work has been completed by previous investigators on ground water in <br />the study area, as summarized in the SPDSS Feasibility Study. The existing aquifer <br />configuration, aquifer property and ground water level data will be compiled, reviewed and <br />placed into electronic databases that can be imported into the State's DSS database HydroBase. <br />The existing data will be evaluated and mapped to help identify data gaps and assist in the design <br />of the Phase I field data collection program (Task 33). Data obtained from Phase I field data <br />collection program will be added to the databases and maps. The databases and maps are <br />expected to be used in future years to update the existing groundwater model of the Denver Basin <br />Region (Task 47), and to support and expand modeling of the Lower South Platte Region <br />(Task 48). <br /> <br />All deliverables will be consistent with the DSS design, including use of data structures and <br />formats that are being developed by the Database DSS team (e.g. all maps will be provided in <br />ArcView format). Deliverables will use DSS standards for standard memo formats, report <br />formats, database design and program documentation, etc. <br /> <br />Tasks 31 and 42: Collection, Analysis and Mapping of Aquifer Configuration Data <br /> <br />Objective: <br /> <br />The objective of these tasks is to (I) compile existing aquifer configuration information and <br />create HydroBase-compatible databases with data from the Denver Basin and Lower South Platte <br />Regions, (2) help identify additional data needs in these Regions, (3) support the design of the <br />groundwater field program described in Task 33, and (4) enhance HydroBase with aquifer <br />configuration data collected during the Phase I field activities in Tasks 35 and 36. <br /> <br />Approach: <br /> <br />Task 31 <br /> <br />Collect Historic Aquifer Configuration Data <br /> <br />. Obtain existing electronic databases that are currently maintained by the State and, if <br />available, the USGS and the available paper-copy reports (as identified in Appendix B7 of <br />the SPDSS Feasibility Study) that contain information on (a) aquifer bottom and top <br />elevations, (b) aquifer sand thickness and (c) aquitard layer elevations, thicknesses and <br />extents. <br /> <br />Task 42.1 <br /> <br />Analyze and Map Historic Aquifer Configuration Data <br /> <br />. Coordinate with the Relational and Spatial System Integration Consultant to detennine the <br />database structure that will be used for entry and/or formatting of these historic data. <br /> <br />. Reformat the existing electronic databases into the appropriate DSS (HydroBase) formats <br /> <br />. Evaluate whether the non-electronic historic data is suitable for addition to the SPDSS <br />database. These data will be evaluated to determine if it may provide an enhanced <br />understanding of the Denver Basin and Lower South Platte Regions' ground water <br />systems. Data that are necessary for future use to configure, calibrate and use in the <br /> <br />SPDSS Groundwater SOW, Phase I <br /> <br />Page 10 <br />