CITY COUNCIL AGENDA PACKET - Laserfiche WebLink

Page 3 of 7 results will be included in the development of the 10-Year CIP and Water System Master Plan. Condition Assessment & 10-Year CIP - IN PROGRESS All on-site inspections of the physical infrastructure and analysis of the water infrastructure based on the age and materials have been developed. This work will be used to develop a list of infrastructure deficiencies based on the condition of the asset (pipelines, pump stations, storage tanks et al.), to develop the primary components that comprise the 10-year CIP. The City is in the process of implementing the prioritization and classification of each major deficiency to generate the 10-year CIP with an estimated range of $135 million - $205 million in needed improvements. Additional information about the prioritization process and preliminary results are provided in the aforementioned December 19, 2022, agenda report titled: Receive an update on the development of a Water System Management Plan. Water Supply Alternative – City Ground Water Supply Project - IN PROGRESS The Water Supply Alternative project identified and reviewed options to address PFAS in the City's existing groundwater wells and outlined several alternatives to restore the City’s 3,500 acre-feet groundwater pumping quota. The City is moving forward with a project to design, construct, and operate two new groundwater wells in the Bernal sub-basin (as outlined in the agenda report Water Supply Alternatives Study presented to the City Council on October 17, 2023). If during the feasibility process of test drilling and permitting with Zone 7, it is determined that new groundwater wells are not feasible, then the City would pivot back to constructing a reduced PFAS Treatment and Well Rehab project with a focus on improvements to Well 8 (City PFAS Treatment and Well 8 Rehab Project). City staff has been in continuous contact with Zone 7 as it is progressing on its groundwater modeling of the PFAS plume and Well Master Plan. Since October 2023, staff has had multiple conversations with Zone 7 and confirmed the opportunity for collaboration, such that Zone 7 and City staff have developed a term sheet that outlines the roles and expectations of the two agencies that will be the foundation of an agreement to explore a groundwater well partnership. Collaboration with Zone 7 includes evaluating the feasibility of designing, constructing, and operating multiple municipal wells in the Bernal sub-basin and increasing the disinfection capacity at Zone 7's Hopyard treatment facility to obtain additional groundwater supply for the region and recover the City’s groundwater pumping quota (GPQ) of 3,500 acre-feet. Zone 7 would be the lead agency in the development and operation of the project, and the City would support Zone 7 by paying its fair share of costs related to its GPQ and assisting with necessary land rights. The City's GPQ would be delivered by Zone 7 through its transmission system to City turnouts. Additional improvements to the City's distribution system would likely be required to receive its GPQ from turnouts rather than directly from City wells. Attachment 1 illustrates how exploring the feasibility of a joint project with Zone 7 will tie into the City's overall plans for pursuing a groundwater supply project and includes the following: Phase 1 - Feasibility: This phase will be a joint effort by Zone 7 and the City. Efforts will include a well-siting review for potential locations within the Bernal sub-basin and test drilling/water modeling of these locations to determine the adequacy of water quality and yields. If the Bernal sub-basin is feasible, a Basis of Design report will be prepared to determine the scope of improvements and costs for a joint project. Additionally, preliminary terms for land rights and design, construction, and operational cost sharing will be developed. Based on these findings, the City will review the joint project's cost and advantages/disadvantages as compared to the Page 154 of 228