A Group of Experts Leading the Way

From guiding public outreach to influencing regulatory policy, our water treatment specialists lead the industry when it comes to supporting greater adoption of water reuse as a tool for integrated resource planning. Together with our clients, we have developed some of the world’s largest and most advanced water reclamation systems. Read below about the experts who are guiding our global team in the water reuse revolution.

  • Kati Bell, PhD, PE, BCEE Global Practice Leader for Water Reuse close

    A water treatment specialist, Dr. Bell has more than 20 years of experience in water with a specific focus on reuse; she has served as technical director for wastewater reclamation projects that sum over two billion gallons per day of treatment capacity. In addition to her engineering experience, she is actively involved in applied research for numerous utilities throughout North America.

    Some of the highlights of Dr. Bell’s reuse experience include serving first as Project Manager for the 2012 EPA Guidelines for Water Reuse, and subsequently as the Technical Director for the supplement to the Guidelines that document the state of the potable reuse industry. As a researcher, she led a study in North Carolina that allowed the regulatory ban on direct potable reuse to be lifted when legislation was signed into law in August 2014. She is also the Co-Principal Investigator (PI) of the Water Environment & Reuse Foundation (WE&RF) Tailored Collaboration led by Gwinnett County Department of Water Resources in evaluating the feasibility of direct potable reuse (DPR) in a pilot study evaluating a treatment train that eliminates use of reverse osmosis, which produces a concentrate waste stream that is a barrier to implementation of DPR for inland utilities.

    Her research and engineering experience is valuable in supporting various state agencies in developing guidance for reuse; she is a member of expert workgroups in Georgia and Tennessee, and has served the National Water Research Institute as a PAC member for development of a framework for potable reuse that will be used by the California Direct Potable Reuse Independent Advisory Panel to address requirements of California Senate Bill 918 on water recycling policy. She has also recently been invited to serve on the Independent Advisory Panel for the Clearwater, Florida groundwater recharge project, which will provide reclaimed water for injection into the groundwater that serves as the water supply for that community.

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  • James Borchardt, PE Vice President close

    Mr. Borchardt has more than 38 years of experience in project management and engineering for large water treatment, conveyance and storage facilities. He currently serves as a process design lead for San Diego Pure Water Program, involving predesign of two options to provide advanced treatment of tertiary wastewater from the North City Wastewater Reclamation Facility for surface water augmentation of the City’s raw water reservoirs. Mr. Borchardt is also the Project Manager of a demonstration pilot facility design for the Metropolitan Water District (MWD) for a potential regional recycled water supply program, including the planning of a 150 mgd, full-scale facility. Both projects involve advanced treatment processes, design and regulatory coordination.

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  • Ken Broome, PE, PMP Principal Project Manager close

    Mr. Broome has a BS and MS in Civil Engineering from the University of Florida. He has 16 years of experience as a consulting engineer in the water, wastewater and reuse industry. His work experience includes all facets of planning, permitting and engineering design for water supply and resources, water quality and wastewater utility engineering projects.

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  • Allegra da Silva, PhD, PE Supervising Water Reuse Engineer, Americas close

    Dr. da Silva has more than 11 years of experience in drinking water, wastewater and water reuse, as well as more than 17 years of experience working on international collaborations. Dr. da Silva specializes in water reuse, including treatment technology evaluation, policy framework development, feasibility studies, and research design and execution. She has been involved as a project engineer on water and wastewater facilities ranging in size up to 235 mgd and has helped to manage as much as $30M per year in studies. Dr. da Silva loves working at the interface of engineering and policy, and she served as a technical editor for the 2012 U.S. Environmental Protection Agency (EPA) Guidelines for Water Reuse. As a follow-up to that work, she and Dr. Bell managed and provided major technical input into the potable reuse supplement to the Guidelines, which is anticipated for publication in late 2016 following final EPA review.

    Dr. da Silva is also actively involved in WateReuse Colorado (WRCO) and in the regulatory process in Colorado to potentially allow new types of water reuse applications to occur in the state, such as toilet flushing and irrigation of edible crops. She serves on several committees as part of the American Water Works Association (AWWA) and Water Environment Federation (WEF). She is on the Issue Area Team (IAT) for the Water Environment and Reuse Foundation (WE&RF) and serves in project advisory roles for the foundation. Dr. da Silva holds a PhD and MS in Environmental Engineering from Yale University and a BS in Chemical Engineering from the Rensselaer Polytechnic Institute.

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  • Melanie Holmer, PE, PMP California Region Practice Leader for Water Reuse close

    Ms. Holmer has more than 18 years of experience and has served as Project Manager and/or Project Engineer on a variety of water, wastewater and water reuse projects throughout California, Colorado and Florida. She served as Project Manager and technical resource on the Camrosa Water District chlorine disinfection studies project. The project included three phases of testing — tracer, chlorine demand and virus seeding — to determine minimum contact time (CT) required for virus and coliform inactivation using free chlorine. To ensure quality and execution of testing in accordance with the project plan, she directly participated in and supervised on-site field testing during all three phases. Ms. Holmer recently completed recycled water pre-feasibility studies for three different districts of California American Water and is currently supporting the City of San Diego’s Water Reuse Study and Pure Water Program. She received her MS in Civil Engineering from the University of Colorado at Boulder and her BS in Environmental Engineering at California Polytechnic State University, San Luis Obispo.

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  • Joe Jacangelo, PhD, REHS Director of Research, Americas close

    As part of the Research Group at MWH, now part of Stantec, Dr. Jacangelo helps establish the best science to inform implementation of water reuse. He leads the industry in investigating the fate and transport of wastewater-derived contaminants, treatment process evaluation (with specific expertise in membranes and disinfection technologies), and energy efficiency and optimization. He has served as a technical advisor and played other prominent roles for more than 80 water and wastewater projects, as well as published over 100 technical papers. He is a past Board Member, Chair of the Technical and Education Council and member of the Executive Committee for the American Water Works Association (AWWA).

    Over the years, Dr. Jacangelo has served on 26 AWWA committees and over 30 advisory or conference planning committees for various other water and wastewater organizations. He is the past Chair of the Board of Directors for WateReuse Research Foundation (WRRF) and is a member of the editorial advisory board for the Journal of Water Reuse and Desalination. Dr. Jacangelo is a past recipient of the AWWA Golden Spigot Award and the AWWA Best Paper Award in water quality. He has been directly involved in dozens of water reuse projects at every scale, as well as ozone bio-filtration and other advanced oxidation projects in Virginia and other locations throughout the world.

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  • Julie Labonte Pure Water San Diego Program Manager, USA close

    Ms. Labonte serves as the Program Manager for the San Diego Pure Water Program, managing the overall program and preliminary design services on all facilities involved in the first phase of the project. Ms. Labonte also serves as a member of the Advisory Group on Feasibility of Developing Criteria for Direct Potable Reuse for the Division of Drinking Water (DDW) Water and Energy Committee on behalf of the San Diego Regional Chamber of Commerce. The Advisory Group provides consultation to the DDW on public health issues, as well as scientific and technical matters regarding the feasibility of developing uniform water treatment regulations for direct potable reuse.

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  • Joan Oppenheimer, MSPH, BCES Principal Environment Scientist, Americas close

    A water treatment expert, Ms. Oppenheimer has more than 30 years of experience in water quality assessments and treatment process solutions. She is a Board Certified Environmental Scientist and active member of the Water Environment and Reuse Foundation (WE&RF) Research Advisory Committee. She also serves on other committees and in project advisory roles for the Water Research Foundation and the WE&RF.

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