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<br /> (/2 í- <br /> distribution system. - <br /> 1.2.29 Obtain existing computer hydraulic model files from the CITY and convert the <br /> information into a INWATER (Intergraph Microstation) based model. ENGINEER will also <br /> obtain existing maps illustrating the pipes, nodes, pumps, and reservoirs included in the <br /> existing computer model from the CITY. ENGINEER will number nodes using the CITY's <br /> existing grid system. <br /> 1.2.30 Receive and review and review readily available maps and construction plans <br /> illustrating new facilities constructed and incorporated into the system since the current <br /> computer model was last updated. The ENGINEER will also receive and review available <br /> information concerning water consumption by major water customers within the CITY. <br /> 1.2.31 Update the INWATER computer model to reflect the existing water distribution <br /> system. <br /> 1.2.32 Update the demand projections at each node in the updated model based on <br /> existing population information developed as part of the CITY's wastewater master plan <br /> process and water demand information developed as part of the CITY's Surface Water <br /> Supply Study. Since the wastewater population information will be presented in sewer <br /> service areas, it will be necessary to translate the population information into a node <br /> service area. The node demands will also be adjusted to reflect large commercial, <br /> industrial, or institutional water users. <br /> 1.2.33 Coordinate with the CITY to have fire hydrant flow tests conducted on the <br /> distribution system. The ENGINEER will provide one staff member to observe these tests, <br /> however, the CITY will conduct the tests. <br /> 1.2.34 Calibrate the updated computer hydraulic model to match the results of the field fire <br /> hydrant flow tests. <br /> 1.2.35 Use the calibrated computer model to evaluate the appropriate size and location <br /> of a new treated water transmission main from the water treatment plant to its connection <br /> to the existing system. The evaluation will include potential phasing of improvements to <br /> meet projected growth in demands. <br /> 1.2.36 Use the calibrated computer model to evaluate the appropriate size of the treated <br /> water pumps at the new water treatment plant. In addition to sizing these pumps, the <br /> ENGINEER will also evaluate appropriate operational scenarios for all pump stations in the <br /> distribution system. The evaluation will consider the potential phasing of improvements to <br /> meet projected growth in demands. <br /> 1.2.37 Use the calibrated computer model to evaluate the adequacy and functionality of <br /> 7 <br />