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Exhibit A Scope of Work Pleasanton Water Supply Alternatives Study Scope of Work Background The City of Pleasanton (City) receives water supply from three sources: wholesale purchases from Zone 7 Water Agency(approximately 11,000 acre-feet/year), local groundwater (up to the City's groundwater quota of 3,500 acre-feet/year), and recycled water purchased from neighboring agencies(approximately 1,200 acre-feet/year). The City owns and operates three wells (Well 5,Well 6, Well 8), which are used to pump the City's groundwater quota, meet peak demands, and provide redundancy. However,due to the presence of per-and polyfluoroalkyl substances (PFAS) in the groundwater, new regulatory requirements are forcing the City to either build a treatment system or remove the wells from service. Starting in September 2020,the City began implementation of the PFAS Treatment and Wells Rehabilitation Project(Treatment Project)with the goal of extending the life of their existing groundwater facilities and providing PFAS treatment.The project is in the final phase of design and is 50 percent complete. The Treatment Project scope includes: • Replace Well 5 with a new Well 9 at Amador Park • Rehab Well 6(renamed Well 10) • Rehab Well 8 • New centralized treatment facility for PFAS treatment, disinfection, and fluoridation • Add raw water transmission pipeline and treated water distribution piping improvements At the September 6, 2022 City Council meeting, City Council directed staff to suspend implementation of the Treatment Project and evaluate other alternatives that could provide 3,500 acre-feet/year of high quality, reliable water supply. Study Purpose The purpose of this Water Supply Alternatives Study(Study) is to identify and evaluate alternatives for the portion of water supply currently sourced via the City's groundwater pumping quota (3,500 acre-feet/year)to inform whether the City should proceed with the Treatment Project or pursue a different alternative water supply option(s)to make up the groundwater pumping quota.The Study is not intended to consider alternatives for the City's other supply sources (i.e., recycled water or purchases from Zone 7), which are assumed to remain in place. Scope of Work 1. Project Management Brown and Caldwell (BC)will provide project management services including oversight of project staff, budget, and schedule; project administration and accounting;and monthly progress reports with invoices. BC will orchestrate a kickoff meeting with City staff to discuss project goals and objectives, roles, and data needs, and biweekly(once every two weeks) progress meetings with the City's project manager(PM). Task 1 Assumptions 1