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The Metropolitan Water District of Southern California

​The Metropolitan Water District of Southern California owns and maintains the regional water system that provides Southern California with imported water supplies.  We work closely with our 26 member public agencies to deliver this water day in and day out for drinking and groundwater recharge for the 19 million people they serve. Metropolitan continually monitors the condition of our Colorado River Aqueduct, pumping plants, 5 treatment plants, and 830 miles of pipelines so that repairs and rehabilitation projects can be completed as needed.  Reliability is a core part of our mission.

The Second Lower Feeder is one of the major pipelines in the system.  Constructed in 1967, it delivers treated water from the Robert B. Diemer Water Treatment Plant in Yorba Linda to the Palos Verdes Reservoir in Rolling Hills Estates.  Approximately 28 miles of this pipeline need to be relined with steel to ensure that it will be reliable long into the future. The construction will be done in phases over a period of 8 to 10 years.

Second Lower Feeder Reach 2

The project will reline 4.5 miles of the pipeline in the Cities of Carson and Los Angeles, and unincorporated areas in Los Angeles County. Visit the project website.

Being A Good Neighbor

​Metropolitan is committed to working with local communities as we move through this project. We will continue to communicate prior to and during the work so that residents  can plan accordingly.

We worked closely with our member agencies to prepare for taking portions of this key pipeline out of service during construction.  The water supply to homes  will not be affected.

    For More Info

MWD Community Relations

(213) 217-6752


Meeting Notice Project Information        

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Second Lower Feeder