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One Water LA 2040 Plan

Providing Los Angeles with water reuse options to improve water security, reliability, and system resiliency

  • Los Angeles, California

    Los Angeles, California

A visionary plan that connects environmental, economic, and social benefits to create projects that develop new water sources

In the often-dry climate of Los Angeles and surrounding jurisdictions, water supplies, reuse, and recycling are always at the top of the agenda. In response, The City of Los Angeles developed the One Water LA 2040 Plan to provide an integrated framework and identify collaborative opportunities between the City and other water-related agencies. The One Water LA 2040 Plan builds on the City of Los Angeles Integrated Resources Plan (2006).

Working with the City, we prepared a Wastewater Facilities Plan (WFP) as a component of the overall One Water LA 2040 Plan. We incorporated the guiding principles and objectives that were developed in Phase 1 to allow for multiple concept options. These options allow the City to evaluate direct potable water reuse alternatives and stay informed of ongoing research, regulatory changes, policy developments, and the activities of other City agencies or departments in relation to water.

The WFP also includes a “trigger-based” implementation strategy. This provides built in decision points where the City can consider which of the options available would provide the most value as regulatory and policy environments continually evolve.

At a Glance

  • LA Sanitation & Environment (LASAN)
  • Carollo Engineers Inc.
Meet Our Team

Zakir Hirani, Vice President, Water Reuse Practice Leader

Expertise in membranes and advanced water treatment helps me alleviate water scarcity—achieving sustainability in these changing times.
Zakir Hirani Vice President, Water Reuse Practice Leader Read More

Jim Borchardt, Vice President, Civil Engineer

I’m passionate about mentoring the next generation of engineers so they can trust themselves enough to make mistakes and grow from it.
Jim Borchardt Vice President, Civil Engineer Read More

Michael Adelman, Associate

I’m interested in the intersection of theory and practice—I think good engineering combines both.

Donal (Don) Bassett, Senior Vice President, Water

My career has had a wastewater focus, but potable reuse projects are creating an exciting nexus between wastewater and water technologies.
Donal (Don) Bassett Senior Vice President, Water Read More

Zakir Hirani

Vice President, Water Reuse Practice Leader

Jim Borchardt

Vice President, Civil Engineer

Michael Adelman


Donal (Don) Bassett

Senior Vice President, Water

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