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is recommended to address any potential unforeseen work. If necessary, the City will issue the work as an amendment to the agreement. BACKGROUND The City is a water retailer that operates and maintains a water distribution system to deliver water to residences and businesses for domestic and irrigation uses within the city. Alameda County's Zone 7 Water Agency is the Tri-Valley's water wholesaler that procures water from the state and regional wells, treats the water, and then sells the water to Pleasanton and other Tri-Valley water retailers for distribution. Pleasanton is a unique retailer as, in addition to purchasing water from Zone 7, the City also has an annual groundwater pumping quota of 3,500 acre-feet from its own local wells, which is approximately 20 percent of the water used in the city. The City wells are primarily utilized during the warmer time of year to meet increased water demands. The City purchases water from Zone 7 housed in underground vaults that are called turnouts where water from Zone 7 is pushed into the City's system and controlled and metered. The City fluorinates the water which the turnouts provide and monitors the pressures. The water distribution system was designed to incorporate the locations of both the turnouts and City wells to maintain balanced system pressure. Changes to the volume of water entering the system through different turnouts and wells can cause pressure variations within the system. The City actively monitors the system to ensure that pressures in the system meet AWWA standards. With the presence of PFAS in the aquifer that both the City and Zone 7 wells draw from, the City has limited the use of its wells to only as necessary during critical periods to meet peak demands. Summer demands are currently being met by purchasing additional water from Zone 7 at the existing turnouts and continued voluntary conservation. Existing peak demands of 18 mgd have been lower than the anticipated peak demand of 25.8 mgd which is attributed to lower temperatures, continued conservation and modification of the operation of the City's water system. To meet peak demands without using the wells, the City is coordinating with high water users — including the City at its parks and Callippe Golf Course — to conserve and reduce water during peak demands. To prevent damage to landscaping by greatly reducing water use during the peak demands, landscape areas are watered without conservation when water is available and demand on the system is low. DISCUSSION In early July, Akel Engineering Group, Inc. (AEG) completed the water modeling to meet the expected near-term peak day demand of 25.8 mgd without using wells and identified the need to update three pipeline segments and install a water booster station at Turnout 4 (see Attachment 2). These four projects are identified as "interim water improvements" and are in an accelerated design process to be in place as soon as possible, with construction targeted to start in spring 2024. The improvements will increase the capacity of the existing turnouts, rebalance system pressures, and improve the reliability of the system, providing the necessary time to implement the recommended water supply alternative improvement(s). The preliminary results from the development of the Water System Master Plan identified that interim water Page 3 of 10