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• EXHIBIT "A" SCOPE OF SERVICES AND TIME SCHEDULE BACKGROUND A hydraulic analysis is needed to: develop hydraulic criteria for tank and pump station design; confirm recommended tank and pump station connections to the system; and, develop recommendations to guide future operation of the proposed California Tank and Califomia Pressure Zone. The City of Redwood City (City) is planning to construct a new 0.8 million gallon (MG) storage reservoir in the California Pressure Zone, which currently has no storage. The tank would provide storage for operational, emergency and fire needs in the Hillside Area of the City's water distribution system, and would be co-located with the California Pump Station (California PS), which would also be re-constructed as part of the project. A new pipeline would also be constructed to connect the tank to California Pressure Zone piping. The California Pressure Zone (hydraulic grade line (HGL) 695 feet) is currently served by regulating stations that supply water to the zone from the High Line (HGL 896 feet). The High Line also provides suction to the California PS, which serves the Easter Cross Pressure Zone (HGL 937 feet). Historically, there were two small redwood tanks at the site, which were filled from the Lakeview Pump Station, and which provided suction to the California PS. The zone configuration was subsequently changed and the tanks were demolished in 1998 for safety reasons. Lakeview Pump Station is currently designated as a standby facility that is used during emergencies. However, lack of hydraulic capacity and/or demand in the system limits the use of the pump station in order to avoid over-pressurizing the zone. The proposed California Tank would provide balancing storage for the zone and provide a stable suction gradient for the California PS. Using the California PS, water from the proposed California Tank could also be used to supply the Easter Cross Pressure Zone during normal operations, or the High Line during emergencies. The Water Distribution System Master Plan found that the California Tank could be supplied by the Lakeview PS, but in peak summer months, supplemental flows from the High Line may still be needed to support the zone due to hydraulic limitations at the Glenwood PS. A possible alternate configuration for the Yank is to keep the Lakeview PS as an emergency facility and re-fill California Tank through a new altitude valve connected to the High Line. ATTYIAGR/2012.024IDESIGN PROFESSIONAL AGREEMENT WEST YOST ASSOCIATES REV:03-07-12 VR Page 10 of 16