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ExH I if IT A CITY OF PLEASANTON PHASE IA RECYCLED WATER DISTRIBUTION SYSTEM DESIGN Scope of Work The Consultant shall perform engineering services for system modeling, system operations planning and design of the Phase 1 Recycled Water Distribution System identified in the Recycled Water Feasibility Study,dated July 2013 and revised in July 2014. The services include the topographic and utility surveys, corrosion evaluation, geotechnical investigation, permitting, engineering design and bid assistance services. In general,the facilities to be designed include the following elements: • Approximately 49,100 linear-feet (If) of 4-inch through 30-inch distribution pipelines as Phase IA, including to the Oracle connection in Owens Drive. • Approximately 3,750 If of up to 30-inch pipeline in Santa Rita Road from south of Interstate 580 to W. Las Positas Boulevard(sizing will be evaluated under Task 1). • Two supply flow metering and control valve stations and associated communication and SCADA system design for operation of the control valve. • Connections and new pipeline segments along the former Clean Water Revival pipeline from Tasajara Creek in Dublin Blvd. to Fallon Road and then south on Fallon Road to south of Interstate 580. • 117 service lines to existing meter boxes for customer connections. • Eight Zone 7 channel crossings, including one bridge structure on Hopyard Road,six box culverts and one culvert The recycled water improvements will be planned and designed consistent with and will incorporate the appropriate mitigation measure from the adopted project Initial Study/Mitigated Negative Declaration and Environmental Assessment/EONS'. The work products of this project shall provide suitable information for the successful bidding and construction of the Project, an operations plan that the City will use to operate the system in conjunction with DERWA, DSRSD and City of Livermore (recycled water suppliers/producers), and a Title 22 Engineers Report for establishing operating procedures and reporting by the City and its recycled water customers. Consultant shall perform the following tasks in accordance with the schedule included as Exhibit B of this scope. The project schedule is aggressive, requiring design completion in December 2014. Meeting this schedule will require a significant partnership between the Consultant's team and City staff. This includes immediate identification of issues and prompt decisions by both parties as required for moving ahead. Deliverable reviews by the City will be done concurrent with continued advancement of the design and other project activities. This approach may impact schedule and budget if review comments change previously provided direction. The City and Consultant shall communicate at least weekly to identify issues and discuss their resolution to avoid these delays and associated rework. TASK 1: SYSTEM MODELING Subtask 1.1: Coordination with City of Pleasanton,DSRSD and Livermore on Supply Scenarios Consultant shall meet with the City and its recycled water suppliers, DSRSD/DERWA and the City of Livermore, to discuss the various supply operating scenarios that are anticipated over the life of the project. Envisioned scenarios include: • Supply from DSRSD only • Supply from Livermore only • Supply from both concurrently Scope of Work Rev4 Page 1 of 17 August 20,2014