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MEMORANDUM <br />Rice Creek Commons Water Distribution System Modeling Results Update <br />January, 2025 <br />Page 4 <br />H:\KIMLEYHO_PR\0T4133552000\2_Preliminary\C_Reports\Preliminary Design Report Update\Report Update\Water Preliminary Engineering Analysis\Memo-Rice Creek Commons Water <br />Distrib Sys Modeling Results Update Final Draft 01.24.2025.docx <br />Table 1 – Comparison of Field Pressure to Model Pressures <br />Test <br />No. <br />Static/ <br />Residual <br />Node <br />Static Pressure Residual Pressure <br />Field <br />Data <br />(psi) <br />Updated <br />Model Data <br />(psi) <br />Pressure <br />Difference <br />(psi) <br />Field <br />Data <br />(psi) <br />Updated <br />Model Data <br />(psi) <br />Pressure <br />Difference <br />(psi) <br />2 Hyd_392 63.9 66.1 2.2 50.9 51.7 0.8 <br />4 Hyd_464 66.6 68.1 1.5 53.7 53.6 -0.1 <br />6 Hyd_436 78.5 80.8 2.3 43.8 57.3 13.5 (1) <br />8 Hyd_520 91.3 94.5 3.2 75.1 74.5 -0.6 <br />10 Hyd_541 94.4 96.4 2.0 78 72.5 -5.5 <br />12 Hyd_320 72.7 72.1 -0.6 55.6 53.4 -2.2 <br />15 Hyd_98 68.3 69.0 0.7 50.1 47.6 -2.5 <br />16 Hyd_10 68.6 68.6 0.0 38.2 34.5 -3.7 <br />17 Hyd_65 68 67.6 -0.4 59.4 59.0 -0.4 <br />20 Hyd_259 68.8 69.4 0.6 51.4 46.1 -5.3 <br />21 Hyd_247 62.9 63.7 0.8 35.4 41.8 6.4 (1) <br />23 Hyd_196 73.2 73.2 0.0 39.6 37.0 -2.6 <br />(1)The 2019 Water Distribution System Hydraulic Model Calibration and System Evaluation Report noted <br />that Test No. 6 and Test No. 21 possibly had closed isolation valves during the field hydrant testing. <br />Comparing the model results to the field data information presented in the Water System Master Plan <br />indicated that the model reasonably represents the distribution system. The comparison between <br />model results and field data were performed by comparing pressures at nodes within the model <br />representing locations at or near the locations of the field data. The results of this comparison are <br />shown below for an average day demand simulation of the existing system: