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1. Compile existing aquifer configuration information and create aHydroBase-compatible <br />database with data from the Denver Basin and South Platte Alluvium regions to enhance <br />the understanding of the system. <br />2. Help identify additional data needs in these regions. <br />3. Support the design of the groundwater field program. <br />4. Enhance HydroBase with aquifer configuration data collected during the Phase 1 field <br />activities. <br />5. Collect data to support future development and calibration of a groundwater model. <br />This Technical Memorandum (TM) was undertaken under Task 42.3 of Phases 1, 2, and 3 of the <br />SPDSS, and summarizes the compilation, analysis, and mapping of existing published alluvial <br />aquifer configuration data for the South Platte Alluvium Region. <br />Approach <br />The following table summarizes the sections contained in this TM. <br />Section Descri tion <br />1.0 Aquifer Confi ration Data Collection and Anal sis <br />1.1 Sources of Data <br />1.2 Data Anal sis and Processin <br />2.0 Aquifer Confi ration Database <br />2.1 Database Structure <br />2.2 Database Qualit Control <br />3.0 Results <br />3.1 Aquifer Bottom Elevations <br />3.2 Groundwater Level Elevations <br />3.3 Ground Surface Elevations <br />3.4 Saturated Thickness <br />3.5 Cross sections <br />4.0 Summar and Conclusions <br />5.0 Recommendations <br />6.0 References <br />1.0 Aquifer Configuration Data Collection and Analysis <br />Aquifer configuration data are used to describe the thickness and extent of the aquifer and <br />includes the elevation of the aquifer bottom and the elevation of the top of the aquifer. For this <br />TM, land surface will define the upper limit of the aquifer and a water table surface will define <br />the saturated thickness of the aquifer. The difference between the bottom elevation and water <br />table elevation will be used to calculate the saturated thickness of the alluvium. The following <br />section describes the approach used to collect, analyze, and map aquifer configuration data for <br />the South Platte Alluvium Region. <br />SPDSS Phase 3 Task 42.3 TM -Final 2 <br />11/30/2006 <br />