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Bringing Water to Southern California.

Our Mission

The mission of the Metropolitan Water District of Southern California is to provide its service area with adequate and reliable supplies of high-quality water to meet present and future needs in an environmentally and economically responsible way.



19 million


1.5 billion






$1.6 billion

MWD construction worker during a shutdown.

Project Labor Agreement

The Project Labor Agreement: A Year in Review

Metropolitan joined Building and Construction trades to sign an agreement in October 2022 with a focus on community, equity and outreach to underrepresented people focused on careers in construction. The Project Labor Agreement includes 34 Metropolitan projects aimed at making Southern California water supplies more resilient to a changing climate. 

Let’s take a look at the impact of the PLA one year out.

Water quality lab technician photo.

Annual Water Quality Report

Protecting Your Water.  Protecting Your Health

Protecting the quality of our water is about protecting your health. That means doing everything necessary to safeguard our water from harmful contaminants, like bacteria, pathogens, heavy metals, pesticides and other chemicals. From source to delivery, we monitor for more than 400 constituents, performing over 200,000 tests a year and adjusting our treatment as necessary, to ensure our delivered water meets all state and federal requirements to protect human health.  Learn more in our Annual Water Quality Report, available in English and Spanish.

Aerial view of the Colorado River Aqueduct on a sunny day in the desert

Annual Achievement Report

Annual Achievement Report: Leader in Conservation

For decades, Metropolitan has been a leader in conservation and support of local recycling and groundwater recharge projects. Despite unprecedented drought, and climate change, we have saved more than 1 million acre-feet of water in 2022. Learn more about our efforts and how you can help increase Southern California’s water supply reliability here.

Current Events___


Metropolitan's Board Room

December 2023

Board Meetings
& Agendas.

Photo of Intake Tower at Diamond Valley Lake.

Planning for the Future

Climate Adaptation Master Plan for Water.

Clock at the Weymouth Filtration Plant.

Met Responds

State Audit of Workplace Concerns.

Take a Tour___

From Source
To Tap.

Follow the extraordinary journey your water must take before you use it, from sources high in the Rockies and the Sierra Nevada, through critical purification processes, to homes and businesses across Southern California.

Workforce Investment___

the Way.

Supplying 40 percent of California’s water resources requires a workforce that is as agile and efficient as the water delivery systems we develop and operate. Succession planning, diversity, and asset retention are vital areas of focus that are key to the success of our organization.

An animation about the Metropolitan's workforce. Their workforce includes 1756 employees, of which 28% were women and 55% were people of color as of 2019. The workforce is composed of 35% professionals, 24% skilled craft workers, 17% office and administration, and 13% technicians. The average years of service at Metropolitan is 14 years, with 43% of staff having over 14 years of service.

Strategic Priorities___

Pathway to
the Future.

With a focus on areas of change and opportunity, Metropolitan - in an inclusive process - identified five strategic priorities that form an action-based framework for our approach to transformation. They support long-term stability and are attuned to the challenges of climate change, responsibilities to the public and our workforce, the importance of a sound business plan and continued collaboration with the communities we serve.

Learning to Conserve___


Supporting Sustainability Through Conservation.

Southern Californians get it. They know our water resources are not limitless. They’ve learned to conserve. And they know they can do more. That is where Metropolitan comes in. We offer water-saving tips, classes, and rebates for water-saving devices and sustainable landscaping. We are your partner as you learn how to make conservation a way of life.

Photo of a drought-tolerant garden with a planter in the middle of the garden path.

Professional Opportunities___

with Met.

Two backhoes in the bed of the Colorado River Aqueduct during a shutdown of the aqueduct for repairs

Work with Us

& Vendors.

Metropolitan's booth at the Calcon Tradeshow as two booth attendants are conversing with tradeshow attendees

Get Involved

Small Business

A construction worker giving a thumbs up while working on a tunnel cleaning project

Join Us

& More.