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From the available data a series of geologic cross sections with composite ground -water <br />levels were created and are depicted in Map 2. The cross sections are presented and <br />described in the Figures Section at the back of this report. Using the cross-section <br />information, major hydrostratigraphic units and aquifers in the Basin were identified and <br />are described in Sections 6 and 7, respectively. The cross-sections were also <br />instrumental in creating aquifer composite potentiometric and saturated thickness maps <br />(Maps 3 through 6). <br />4.3 MONITOR WELL LOCATION AND SELECTION <br />Crop irrigation is significant in most of the townships of the District. However, ground- <br />water levels are not monitored in many of these high -irrigation townships. Water levels <br />in the SHPGWMD are measured annually by the District and are reported by the <br />Department of Natural Resources. There are currently 97 wells in the monitoring <br />network, which are gauged annually (in January through March) to measure and record <br />water -level information within the District. These wells are shown on Map 2 and are <br />listed in Appendix A with associated location, aquifer and water -level information. <br />Appendix D is a tabulation of changes in the water level in each of these monitor wells <br />during the last year and during the last ten years. These wells are located on Map 3 <br />along with other wells used to define the various hydrostratigraphic units and aquifers. <br />IV -2 <br />99-028.003\Phase 2 Report\ SHP Well Data <br />