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Major Reservoir Upgrade is Part of Poway Water Infrastructure Program

Construction on the City of Poway’s clearwell replacement is anticipated to begin this fall following the award of contract to Gateway Pacific Contractors, Inc. The contract was awarded at the Sept. 19 Poway City Council meeting.

The clearwell is Poway’s major storage reservoir for water treated at the water treatment plant, prior to being distributed to Poway water customers.

Poway Water Infrastructure Program

Replacing the aging clearwell, built in 1964, is the second phase of the Water Infrastructure Improvement Program. This program is the largest capital improvement program (CIP) in the city’s 43-year history. The first phase of the program built the infrastructure necessary to bypass the clearwell. The improvements to Poway’s water system will increase the reliability of drinking water for water customers now and for generations to come.

The two tanks that will be built as part of the clearwell replacement project, will provide Poway’s water system with redundancy and operational flexibility in that one tank can be taken offline for maintenance and repairs without interrupting service. Gatweway Pacific was the lowest responsible bidder for the project, with a bid amount of approximately $31.6 million.

The targeted construction start date is Fall 2023 and will include the restoration of the ballfield at Lake Poway once the new tanks are operational. The project is expected to be completed in Fall 2026.

Water Projects Overview

With the goal of increasing the reliability of drinking water for water customers now and generations to come, the City of Poway is undertaking the largest capital improvement program (CIP) in the city’s 40-year history.

The CIP will include replacing the clearwell (water storage reservoir) at the water treatment plant and a new San Diego County Water Authority treated water connection and redundant pipeline. In order to replace the clearwell, a bypass system consisting of two 1.4 million-gallon tanks, pipelines, a pump station and other appurtenances will be constructed.

These infrastructure improvement projects have been in the planning stage for a long time and are moving ahead as part of a mutual agreement between Poway and the State Division of Drinking Water.

SDCWA Treated Water Connection/Redundant Pipeline

The San Diego County Water Authority treated water connection and redundant pipeline project provides Poway with its first treated water connection to the Water Authority’s treated water aqueduct, as well as providing redundant pipelines. This project will help diversify Poway’s water supply portfolio and allow for operational flexibility and plant maintenance. It will also provide a redundant pipeline to the 36″ water transmission line on Lake Poway Road, which is currently the single transmission line that carries treated water to the distribution system.

The Poway City Council considered approval of the engineering design agreements during the April 5, 2022 City Council meeting. The City is also working with the Water Authority to evaluate alternatives to reduce the cost of this project.

(Editor’s note: The City of Poway is one of the San Diego County Water Authority’s 24 member agencies that deliver water across the San Diego County region.) 

Construction Contract Approved for RMWD Lift Station Replacement

Two actions taken at the Oct. 26 Rainbow Municipal Water District board meeting addressed the construction of the replacement for Lift Station No. 1.

The board approved a $15,181,157 construction contract with James W. Fowler Company and a $1,423,717 professional services agreement with Valley Construction Management for construction management and inspection services. Both actions had 4-0 votes with one vacant seat.

Drinking Water Reservoir

Hauck Mesa Storage Reservoir to Improve Water Reliability

The San Diego County Water Authority is gearing up to construct a 2.1 million-gallon drinking water reservoir on the Valley Center Pipeline to enhance service reliability throughout the region. The Hauck Mesa Storage Reservoir project in northern San Diego County is part of the Water Authority’s Capital Improvement Program.

Construction work is scheduled to begin in early 2021 and is estimated to be completed in the winter of 2022. The project includes demolition of an abandoned steel tank, and construction of a new 2.1 million-gallon concrete reservoir, isolation vault, and underground flow control facility, as well as other site improvements.

New infrastructure development by the Water Authority and its 24 member agencies ensures the delivery of water to support the region’s $245 billion economy and the quality of life for 3.3 million residents.

Hauck Mesa-Storage Reservoir-infrastructure

The Hauck Mesa Storage Reservoir will temporarily store drinking water pumped from the Claude “Bud” Lewis Carlsbad Desalination Plant and the Twin Oaks Valley Water Treatment Plant. Graphic: San Diego County Water Authority

Hauck Mesa Storage Reservoir

The new storage reservoir will improve water deliveries by temporarily storing drinking water pumped to the Valley Center Municipal Water District, Vallecitos Water District, Vista Irrigation District, and the Rincon del Diablo Municipal Water District from the Claude “Bud” Lewis Carlsbad Desalination Plant and the Twin Oaks Valley Water Treatment Plant. The stored water will safeguard water deliveries from unanticipated water interruptions or pump station outages.

“This project is just one of the infrastructure improvement projects the Water Authority is undertaking to fulfill the agency’s mission to provide a safe and reliable water supply for today and the future,” said Kirk Whitaker, the Water Authority’s project manager.

The Water Authority will work closely with the Valley Center community, Valley Center Municipal Water District, and homeowners to minimize short term construction impacts in the area to ensure safe, uninterrupted water service. For more information on the Hauck Mesa Storage Reservoir project, go to the Water Authority’s Future Projects webpage.

Fyfe Company System Rehabs Water Pipeline

San Diego County Water Authority identified the need to rehabilitate sections of the pipeline while executing its strategy to make major investments in the region’s water delivery system.