San Joaquin Reservoir filtration facility

A project to improve water filtration for recycled water used in Newport Coast and Irvine.

Project overview

The project calls for the construction of a new building, facility electrical system, and the installation of a new  filtration system inside the building.

A temporary staging area has been set up at the south end of the reservoir to store equipment and materials. That area will be cleared once the project is completed.

Construction updates

Construction began in March 2023 and is expected to be completed in September 2025. Please return to this site for updates as they occur.

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March 2023

Construction of new water filtration facility began

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May 2025

Work will continue on the control and filter buildings, and a storm drain manhole will be installed at the top of the reservoir access road.

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September 2025

Construction expected to be complete

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