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ITEM E - MODEL CALIBRATION ($5,626) The model calibration is divided into two calibration operations: a preliminary calibration of selected area of the water system and the final calibration of the entire water model. BKF will perform preliminary calibrations of two selected areas to evaluate the information used in the water model. Based on the findings of the preliminary calibrations, BKF will readjust the information of the entire water model. The preliminary calibration will also be used to gradually calibrate the model from the Hetch Hetchy line and water tanks to the bayfront area. The model preliminary calibration will be performed using the fire hydrant tests results provided by the City. BKF will perform the final calibration using the seasonal water demand associated with the time of year the hydrant tests are performed. We will provide h summary table of the calibration results. ITEM F - SCENARIOS ($4,268) BKF proposes to evaluate three different scenarios under normal service conditions and emergency service conditions. The normal service conditions simulate the water system operating with the Hetch Hetchy line. The emergency service condition simulates operation during an interruption of the Hetch Hetchy line service, when the system would be supplied by the emergency storage alone. This item includes the manipulation of the information required by the scenarios, the management of the output information and a cursory memo of the results. We have assumed the scenarios will not require revisions to the calibration of the water model describe above. ITEM G - COMBINE MODELS ($9,312) We understand that the City would also like to upgrade the existing water model of the Redwood Shores area. BKF proposes to modify the RWS water model using similar procedures describe above for the Redwood City water model. In addition, we propose to combine the two water models into a one comprehensive model for these two areas. ITEM H - REPORT ($4,268) BKF will prepare a summary of the findings made on the existing system operation and three scenarios evaluated. The report will identify the critical areas of the water system simulated based on the City hydraulic design criteria and a map of the water model. ITEM G - REIMBURSABLE ($1,881) We recommend a budget of approximately 5% of the design fee for reimbursable expenses. All reimbursables will be billed with a 10% mark up. Reimbursable include plotting reproduction costs and express delivery costs.