Advisory Panel: Feasibility Study

Metropolitan and the Sanitation Districts of Los Angeles County are working collaboratively to develop a potential regional recycled water supply program that would purify and reuse water for recharge of groundwater basins in Southern California. An advisory panel of key subject matter experts was established to provide independent review and critical input on the scope and direction of the program during its demonstration project phase. In this initial effort, the panel provided input into the development of the program's feasibility and financial assessments, as well as the design of the demonstration plant.

Regional Recycled Water Supply Program Advisory Panel

Pictured, from left: Ed Means, Joe Reichenberger, Richard Atwater, Thomas Harder, Paul Westerhoff, David Jenkins, Shivaji Deshmukh. Not available: Margie Nellor.



Margie Nellor, Co-Chair: Expert on recycled water reuse programs, pretreatment and related regulatory issues.


Richard Atwater, Co-Chair: Expert in recycled water programs and past Executive Director of Southern California Water Committee.


Shivaji Deshmukh: West Basin Municipal Water District, Assistant GM with recycled water engineering and operational experience with Advanced Water Treatment facilities at both the West Basin Water Recycling Facility and the Groundwater Replenishment System in Orange County.


Thomas Harder: Hydrogeologist with expertise on Southern California's groundwater basins.


David Jenkins: Professor Emeritus of Civil and Environmental Engineering at UC Berkeley, with expertise on biological wastewater treatment processes, and water and wastewater chemistry.


Ed Means: Internationally recognized water quality and water resources management expert, with over 35 years experience, numerous peer-reviewed publications, and contributor or author of several books.


Joe Reichenberger: Professor at Loyola Marymount University, Professional Engineer and Board Certified Environmental Engineer, with over 50 years experience in water, wastewater and recycled water systems and treatment.


Paul Westerhoff: Professor at Arizona State University with expertise in advanced treatment processes.

The panel met periodically to review and discuss selected topics presented by project staff. These reviews provided input on:


  • Overall program feasibility and work plans,
  • Conceptual design of the Demonstration Plant,
  • Ideas and approaches to program implementation, and
  • Development of program options and alternatives.


The panel provided the following two reports that summarized their findings:



The work of the program advisory panel is now complete.  A new independent science advisory panel has been formed to provide input on the demonstration project.

Metropolitan Water District  of Southern California Seal

The Metropolitan Water District of

Southern California

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Regional Recycled Water Program


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Regional Recycled Water Supply Program Advisory Panel
Regional Recycled Water Supply Program Advisory Panel