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<br />SOlltJ5l4t&19rollndwater Model Development Report <br /> <br />Oct. 11. 2001 <br />Page 17 <br /> <br />The pumping scenario for cases C6 and PO was examined by two independent methods. <br />A well was chosen at random from two locations representing the Parker and Castle Rock <br />municipalities. A time versus cumulative volume extracted plot was created for each of <br />these wells. The plot for the Parker wells is shown in Figure 5.3. We also developed a <br />FORTRAN code that could be used to read the MODFLOW "wel" file and output a <br />matrix showing the sum of the pumping rate (Q) for all six layers for each of the nine <br />stress periods. This output file was then imported into Microsoft Excel and used to <br />calculate and contour the total volume of water extracted from the entire model. The <br />resulting contour plots are shown in Figures 5.4 and 5.5. These pumping scenarios used <br />in the SB-74 model will be compared to data being compiled from the water providers to <br />verify how accurately SB-74 pumping scenarios captured expected future pumping in the <br />South Metro area. The pumping scenario will be updated to match actual data as it <br />becomes available, if necessary. <br /> <br />') <br /> <br />The resulting dry cells at the end of 60 years model simulation were identified and <br />examined. A time versus cumulative extraction plot for wells in these cells was created <br />and is shown in Figure 5.6. <br /> <br />J <br /> <br />In general, the findings of the model review are that the 5B-74 model meets most of the <br />South Metro groundwater model requirements (section 2.1 above). <br /> <br />) <br /> <br />Hydrosphere Resource ConsullanlS <br />1002 Walnut Suite 200, Boulder, CO 80302 <br />PO Box 445, Socorro, NM 87801 <br />