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, _ . �_ _ EXHIBIT "A" SCOPE OF SERVICES West Yost Associates (Consultant) will perform a scope of work includes a total of six tasks: four technical tasks to prepare the different utilities evaluations, a task to document findings in a technical report; and a task for meetings and project management. Project scoping assumes that potential potable and recycled water demands, sewer flows and storm drainage loadings will be provided by the City Planning Department, who is developing this information in collaboration with Fuscoe Engineering, a consultant working on the Specific Plan. Conceptual utilities plans, identified in Chapter 7 of the draft Specific Plan will be used as a starting point for analysis. The details of the scope of work are presented below. Task 1: Perform Water System Analysis In this task, Consultant will perform a potable water system analysis to determine infrastructure requirements to serve the Specific Plan Area. The following work will be performed: • Update the Hvdraulic Model: Update the City's existing hydraulic model to include conceptual pipelines identified in the draft Specific Plan, and allocate demands provided by the City for the various potential uses in the Specific Plan area. The City's Water System Master Plan identified a new storage tank in the vicinity of the Specific Plan area. In consultation with the City, incorporate the storage tank into the model at the appropriate location and size. • Calibrate the Model: Calibrate the model using the field hydrant flow test provided by the City to verify that the hydraulic model simulates the field test conditions. Consultant will perform up to finro fire flow test calibrations of the hydraulic model or up to four hours of model calibration. To ensure the hydrant flow test field conditions are accurately captured in the hydraulic model for calibration, the City will need to provide current pressure settings at the SFPUC turnouts that supply the City's Main Pressure Zone and the time of day that the tests were perFormed. Estimate zone demand based on seasonal and diurnal information developed for the Water Master Plan, since the City does not have the ability to estimate demand in the Main City Pressure Zone. Review the calibration results to determine if pipeline roughness coefficients that are assigned to pipelines within the Specific Plan area in the hydraulic model should be adjusted based on the calibration results. If the pipeline roughness coefficients at the Specific Plan area need ATTY/AGR/2015.095/WESTYOSTASSOCIATES—INNER HARBOR UTILITIES EVALUATION REV:05-13-15 VR Page 9 of 17