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Item 12 - Visual Slideshow provided by Staff at Meetingi Water Infrastructure Improvement Program Update June 1, 2021 City of Poway Improve reliability and resiliency of Poway’s water supply Diversify the City’s water supply portfolio Improve operational and maintenance flexibility Meet the objectives of the agreement with the State Water Resources Control Board, Division of Drinking Water (DDW) Program Goals: City of Poway Video of Upcoming Water System Upgrades Program Components Clearwell Bypass Project Clearwell Replacement Project San Diego County Water Authority Treated Water Connection and Redundant Pipeline Project City of Poway Clearwell Bypass Project •Required to replace the existing Clearwell water storage reservoir •Two temporary steel tanks are required for water storage •Temporary pump station is required to pump water to the tanks at the higher elevation •Pipelines and a pressure reducing station are also required to convey the flow and reduce the pressure back down to the system pressure •Construction (Approximate): 9/2021 –8/2022 City of Poway Clearwell Replacement Project •Replace the existing Clearwell with two concrete tanks •Two separate tanks are provided to provide flexibility for future maintenance and repairs •Concrete tanks provide a longer service life and have minimal maintenance requirements •Replace the Clearwell over-flow structure •Replace the original inlet, outlet and drain valves •Construction (approximate): 3/2023 –9/2024 City of Poway Treated Water Project •New treated water supply to increase water system resiliency •New connection to the San Diego County Water Authority •Treated water conveyed to the Clearwell tanks with a new pipeline, pump station and forebay tank •The new pipeline also improves the redundancy of the water distribution system (dual pipelines instead of a single pipeline) •Construction (Approximate): 5/2024 –6/2025 City of Poway Capital Improvement Program -Why Now? Commitment: •We are committed to ensuring a safe and reliable water service to our water customers. •Preventing disruption of service to our residents and businesses is one of our highest priorities. •Our city has an agreement with the State Division of Drinking Water to complete these projects. City of Poway Capital Improvement Program -Why Now? Timing: •We have the expertise needed to navigate this multi-year program. •We are committed to protecting the health and safety of our residents by taking action now and embarking on this important, yet challenging program! City of Poway Capital Improvement Program -Why Now? Life Cycle: •Poway inherited its water distribution system when it incorporated in 1980. The Poway water infrastructure being replaced as part of this program has reached the end of its useful life. •Safety standards have evolved over time and while the city has conscientiously budgeted for water infrastructure improvements, the time has come to address some of the most pressing weaknesses in the water system –the lack of redundancy and old infrastructure. City of Poway JUNE 1, 2021 Approval of the Bond Funding Reimbursement Resolution JULY 20, 2021 Award of Construction Contractfor the Clearwell Bypass Project SEPTEMBER 2021 Approval of the Design Consultant Agreement for the Clearwell Replacement Project SEPTEMBER 2021 Approval of the Design Reimbursement Agreement with the San Diego County Water Authority NOVEMBER 2021 Approval of the Design Consultant Agreement for the Treated Water Facilities Project Capital Improvement Program Upcoming 2021 Council Meetings City of Poway Clearwell Bypass: $10.2M Treated Water Facilities: $27.1M Clearwell Replacement: $32.2M Total Program Cost Estimate: $69.5M Reimbursement Resolution Helps minimize ratepayer impacts by: Providing flexibility Preserving tax-exempt status Does not obligate or authorize the issuance of debt i Thank You