CITY COUNCIL MEETING AGENDA PACKET

City of Pleasanton, CA (0012108.00) 2-4 Woodard & Curran, Inc. Pleasanton Long-Term Sewer CIP October 6, 2025 City’s network were found to be capacity deficient under dry weather flow conditions. However, two locations exceeded the City’s freeboard criteria under wet weather conditions. Several alternatives were developed to alleviate the capacity issues and were presented to the City. A preferred alternative for each capacity project was selected based on a combination of cost, construction feasibility, and engineering judgment. The preferred alternatives were added to the City’s near-term CIP. Future developments were added to the model by combining data from the 2020 Tri-Valley Demand Study1, data from the City’s Housing Element developed by the City’s Community Development Department (CDD), and several East Pleasanton Specific Plan (EPSP) projects located near or outside the City’s existing urban growth boundary. This list was updated again with the latest Housing Element developed by the CDD in 2022. These planned projects that will likely be constructed in the near-term (within approximately 10 years), so any capacity issues caused by the additional developments need to be accounted for in the City’s long - term CIP. Flow factors were assigned to single family, multi-family, and non-residential developments based on factors derived from the water billing data, and the additional flow added was used to create the future development scenario. As with the existing sewer loads analysis, dry and wet weather scenarios were modeled using the future loads to determine if any new capacity issues were caused by the increased flow. The same capacity deficiency criteria were applied for future flow conditions, However, in cases where future peak wet weather flows would result in any surcharge (flow exceeding full pipe capacity) due solely to future development, then the City specified that capacity relief would be required before any new development could be connected to the system. Once again, no sewers in the City’s network were found to be capacity deficient under dry weather flow conditions. However, two locations exceeded the City’s capacity criteria under wet weather conditions due solely to the additional flows added by the future developments, and alternatives were developed to add additional capacity. The preferred capacity alternatives for the future load conditions were added to the City’s CIP. 2.4 SCADA Master Plan (West Yost) A separate planning study was performed by West Yost analyzing the City’s SCADA system in addition to the Water and Sewer Master Plans. The report focuses on equipment, preventive maintenance, and cyber security of the City’s existing SCADA system. The mos t applicable recommendation from the TM included in the long-term CIP is the upgrade of lift station remote terminal units (RTUs), which integrate the stations with the City’s SCADA system. No specific projects were included for RTU upgrades in the long-term CIP, but these costs were assumed to be included as part of the mid- and long-term lift station rehabilitation work. 2.5 Energy Master Plan (West Yost) West Yost also completed an Energy Master Plan which evaluated and recommended mitigation measures related to system resilience and renewable energy. Specific projects were recommended as part of this report focusing on use of Distributed Energy Resources (DERs), microgrids, time-of-use management (TOU), as well as process control strategies to evaluate energy optimization. These strategies were recommended at several of the lift stations to improve reliability and resiliency. Similar to the SCADA upgrades, no specific 1. Woodard & Curran, 2020 Tri-Valley Demand Study Municipal and Industrial Demand Study, 2021 Page 223 of 323