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The Long Beach Municipal Urban Stormwater Treatment

Latest Updates - May 2021

On May 17, 2021, a community meeting was held to discuss the latest updates on the LB-MUST Project.

Public Works is preparing to begin construction of the LB-MUST Facility and Wetlands, which is scheduled to begin this summer. In the meantime, Public Works will be preparing the site for construction as we begin internal demolition of an existing warehouse building and clear the site of debris.

General Overview

The Long Beach Municipal Urban Stormwater Treatment (LB-MUST) Project will be designed to divert and treat polluted stormwater runoff prior to entering the Los Angeles River, or reuse as alternative water source. Diverted water will be treated at the LB-MUST facility, with an initial capacity to treat 2 million gallons per day (MGD) and potential expansion to treat 4 MGD. Portions of the treated water will sustain vegetation in the wetlands.

Why is it important?

The LB-MUST facility uses innovative ways to improve our water quality by using ceramic ultrafiltration and photocatalytic technology to treat collected stormwater. Portions of the treated water will be potentially used for City irrigation and to establish this project’s wetlands, generating a sustainable Long Beach stormwater model that will help ensure our water quality standards remain in compliance with California’s NPDES Permit.

Main Program Components

  • Stormwater Conveyance
  • Stormwater Treatment
  • Water Reuse
  • Public Education
  • Establish Open Space

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