A path toward meeting Metropolitan's goal to reduce greenhouse gas emissions.

Environmental Stewardship

A Legacy of Leadership


Metropolitan’s eye toward the environment is tied to the agency’s mission statement –

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.


Click here for an overview of environmental programs.

About Metropolitan

Managing Water and Energy


Metropolitan is the largest water wholesaler in the nation – moving water hundreds of miles to provide drinking water for a population of nearly 19 million in Southern California. This requires a business model that recognizes and plans for the impact of climate change on water resources and water infrastructure. Environmentally and economically responsible programs, such as conservation and recycling, water storage, renewable energy sources, energy management, and a programmatic approach for capital projects are essential. Similar to Metropolitan’s approach to managing water resources, effectively reducing greenhouse gas emissions requires a portfolio approach that looks at all sources and quantities of emissions over time. The Climate Action Plan sets the target and guides future actions to reduce emission levels and complements Metropolitan’s Integrated Water Resources Plan.



The CAP and CEQA document are currently in development. For information contact Malinda Stalvey, CAP Project Manager.

Metropolitan strives to be a leader in helping the region adapt to climate change. The Climate Action Plan will provide a portfolio approach to reducing greenhouse gas emissions and help Metropolitan meet its targets.

Taking the Lead

Becoming More Resilient to Climate Change


Metropolitan takes climate change seriously and is investing in solar power, hydropower, conservation, and water recycling. Metropolitan has three solar power facilities operating at Southland water treatment plants, as well as one in Hemet at the Diamond Valley Lake Visitor's Center. Water system conveyance equipment has been updated and a sustainability program initiated that includes an active rideshare initiative as well as electric vehicle charging stations. More than $1.4 billion has been invested in the development of conservation, recycling and groundwater recovery programs since 1990.


Click here to see Metropolitan’s conservation programs.

A Climate Action Plan

Creating a Portfolio for Greenhouse Gas Reductions


The Climate Action Plan includes an inventory of existing and historic greenhouse gas emissions, a target for future emissions, and suite of actions to help meet the target. Inventory results help establish cost-effective goals and create an actionable blueprint for long-term greenhouse gas reductions.

Plan Development

Setting Goals


The Climate Action Plan will be prepared over the next year, beginning with the development of both historic and current greenhouse gas emissions inventories.  Data will then be used to estimate projected emissions based on expected population growth and water demands, expected new projects and operations, and statewide legislation and policies. Metropolitan will use the information along with the associated state goals to set an emissions target specific to Metropolitan and develop an action plan to reach it. As the Climate Action Plan is rolled out, progress towards the goals will be tracked to ensure the actions taken are making a measurable difference. Progress toward the target will be tracked and reported.

The Climate Action Plan will close the gap between projected GHG emissions and GHG reduction targets.

The Approach

Five Steps to Adoption

Current Progress

Energy Sustainability

Supporting the Climate Action Plan


Where large quantities of water are moved, large amounts of energy are used. The opportunities to manage energy use and conserve water translate into opportunities with both environmental and economic benefits. The Energy Sustainability Plan supports Metropolitan’s Climate Action Plan. It begins with a holistic study of Metropolitan’s energy demands to treat and deliver water as well as energy production through solar and hydropower. It includes a framework of sustainable actions focused on energy cost containment, reliability, affordability, conservation and adaptation.

How to Be Involved

Visit this site for opportunities to join the conversation. Metropolitan plans to connect with the community during the CAP process to share information and insights with interested individuals and organizations.

Contact Us

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Metropolitan Water District  of Southern California Seal

Metropolitan Water District  of Southern California Seal