Laserfiche WebLink
F) <br /> 12.3 City Responsibilities <br /> 1. Provide current version of City's InfoWater water system model that is up-to-date for the current <br /> water system. <br /> 2. Provide data needed to support this task, per the data request and follow-up requests. <br /> 3. Provide staff knowledgeable in the operation of the water system for discussions with HDR <br /> personnel. <br /> 4. Provide fire flow requirements to assume for customer classes in the City. Provide fire flow goals <br /> for customers with large fire flow requirements(assumed to be no more than 10 locations). <br /> 5. Identify locations within the existing system where there are known pressure or flow problems. <br /> 6. Work with consultant to determine appropriate locations for fire flow tests and recording meters. <br /> 7. Provide labor and equipment to conduct fire flow tests and provide traffic control for fire flow <br /> tests. Equipment for conducting fire flow tests to have accuracy of at least 1 psi and 100 gpm. <br /> 8. Assist in the verification of the allocation of demands. <br /> 9. Assist in the identification and description of capital improvements needed to improve distribution <br /> system performance. <br /> 12.4 Assumptions <br /> 1. Model will be in InfoWater by Innovyze. <br /> 2. The model provided by the City is up-to-date for the systems existing condition and does not <br /> need updates to model elements. Updating model elements to make model match existing <br /> system conditions (except for pipe roughness changes for calibration) is not included in this <br /> scope of work. Is assumed that all operating rules, isolation valves, PRV set points, pumps, and <br /> elevations are up-to-date in the model for the existing system. <br /> 3. Updates to the water model's diurnal curve or other model elements associated with extended <br /> period simulations are not included in this scope of work. <br /> 4. No water quality or extended period simulation calibration is included in this scope of work. <br /> 5. Water age analysis will provide rough approximations of water age that can be used to find <br /> areas that have the most aged water when compared to other areas of the system. Without EPS <br /> calibration, the age of water will be a rough approximation best suited to making relative <br /> comparisons rather than detailed quantitative assessments. <br /> 6. Calibration of the City's water transmission system is not included in this scope of work. <br /> Calibration will only apply to the water distribution system. <br /> 7. Analysis of pressure transients will not be included. <br /> 8. Alderwood Water and Sewer, Mukilteo, and Silver Lake areas of the model will not be updated or <br /> calibrated. These areas will be left as inactive in CWP modeling efforts with demands being <br /> placed at the connection points to these systems. <br /> Everett Comprehensive Water Plan June 12, 2019 <br /> Exhibit A—Scope of Services Page 22 of 30 <br />