Water Reuse

1% of the world’s water supply is fresh water. CWEA believes water reuse is an important practice that ensures there is plenty of supply to go around. Highly treated recycled water can be used for irrigation and industrial purposes. Our members also design and operate advanced water treatment facilities that can further treat recycled water so it meets drinking water standards. Direct potable reuse (DPR) is the future water supply California needs!

This section is generously supported by

Hazen & Sawyer


You may also like:     One Water   |    Direct Potable Reuse   |   Utilities of the Future

  • NEWS

      Read our second story, a Q&A with HDR experts on QACs. Last September, nitrification came to a sudden halt at the Water Resource Recovery Facility in San Luis Obispo. While plant staff has come up with a couple of potential solutions, and the plant is nitrifying again, the real cause and cure remain somewhat of...

    • NEWS

        The new documentary film Brave Blue World examines how new technologies and innovations can create a more sustainable water future. It’s important to convey a sense of hope and spirit of optimism for water. The film includes interviews with a variety of water experts, as well as high-profile advocates Matt Damon and Jaden Smith. By...

      • NEWS

          From the State Water Board… The National Water Research Institute (NWRI) convened a panel of experts to provide recommendations on enhanced industrial source control for DPR. The Expert Panel has submitted their recommendations to the State Water Board in March 2020. Their report is available to download here: Download the report Enhanced Source Control Recommendations...

        • NEWS

            Announcement from the State Water Board… NOTICE IS HEREBY GIVEN that the State Water Board will accept public comment on the Addendum to A Proposed Framework for Regulating Direct Potable Reuse in California, 2nd Edition (Framework). The State Water Board will provide an opportunity for the public to present oral comments at a public workshop....

          • NEWS

              Construction of Escondido’s $65 million Membrane Filtration Reverse Osmosis Facility for Agriculture (MFRO Facility) commenced recently, marking a milestone in the City’s goal of providing agriculture growers a high-quality irrigation supply and easing the burden on its wastewater infrastructure. The MFRO Facility will treat a portion of the City’s existing Title 22 recycled water supply...

            • NEWS

                The Sacramento Regional County Sanitation District (Regional San) has completed a project that provides one million gallons of recycled water per day to the Sacramento Power Authority Cogeneration Plant located in south Sacramento. The recycled water is being used at the cogeneration plant’s cooling tower and replaces the use of potable water—protecting this valuable resource. The potable water saved equates...

              • NEWS

                  1986-1992: California endures one of its longest droughts. 1989: Earle Hartling, a water reuse coordinator with the Los Angeles County Sanitation Districts, begins discussions with Upper San Gabriel Valley Municipal Water District (Upper District) about a water purification and replenishment project to help refill the declining local aquifer. 1991: Suffering from severe water restrictions, the...

                • NEWS

                    This article is part of our water reuse coverage, supported by Hazen & Sawyer > Converting Waste to Resource The Hyperion Water Reclamation Plant (HWRP), located in Playa Del Rey, CA, is one of the largest reclamation plants in the nation, treating an average of 260 million gallons per day (MGD) to full secondary standards....

                  • NEWS

                      This article is part of our water reuse coverage, supported by Hazen & Sawyer > The California state Water Board is beginning the development of Direct Potable Reuse (DPR) statewide regulations by assembling an Expert Panel as required by AB 574 (Quirk-2017). This panel is expected to assist the Water Board’s Division of Drinking Water...

                    • NEWS

                        This article is part of our water reuse coverage, supported by Hazen & Sawyer > Public water supplies in California come from groundwater and surface water in a wide range of locations and with characteristics that reflect the geographical diversity of the state. Factors such as population growth and extended droughts are stressing these supplies....

                      • NEWS

                            We are living in a hotter, drier California. 2020 is on track to be one of the hottest on record. Seven of the ten most destructive wildfires in California’s history have burned in the last five years.  And, California has only recently emerged from one of the worst droughts in 500 years.    Direct Potable Reuse (DPR) is a source of local supply to help blunt the impacts of climate change and create more than...

                        • NEWS

                            The Advanced Water Treatment Operator Certification was developed by water professionals, for water professionals and jointly administered by CA-NV AWWA and CWEA. Professional certification is different than a training or educational program. Training programs offer a certificate of attendance when an individual completes the coursework, but they do not generally award a credential or require...

                          • NEWS

                              The Advanced Water Treatment Operator Certification was developed by water professionals, for water professionals and jointly administered by CA-NV AWWA and CWEA. Professional certification is different than a training or educational program. Training programs offer a certificate of attendance when an individual completes the coursework, but they do not generally award a credential or require...

                            • NEWS

                                Congratulations to the 65 Utility of the Future Today honorees for 2020!   This is the fifth year of the Utility of the Future Today (UotFT) program and saw the greatest number of applicants and honorees. These honorees have received a Certificate of Recognition and/or a UotFT banner or a 2020 flag.  This year, as a...

                              • NEWS

                                  Southern California took a major step forward today on the path to developing a new sustainable water source from purified wastewater as Metropolitan Water District’s Board of Directors voted to begin environmental planning work on what would be one of the largest advanced water treatment plants in the world. The approval marks a significant milestone...

                                • NEWS

                                    This article first-appeared in the Los Angeles City Historical Society newsletter. Reprinted here with permission. The catchy phrase toilet-to-tap often appears in stories about recycling, despite recent widespread use of reclaimed water that is pumped into groundwater aquifers in Southern California. Even the New York Times in a recent story about recycling referred to the...

                                  • NEWS

                                      NEW ~ Watch Brave Blue World on Netflix, then join our March 30th, 11:00 a.m. panel discussion hosted by Pacific Institute and CWEA. Learn more and register > A recording of our October 14th Brave Blue World panel discussion. A new documentary film titled Brave Blue World examines how new technologies and innovations can create...

                                    • NEWS

                                        Albert Robles Center (ARC) for Water Recycling and Environmental Learning has been awarded LEED Platinum Certification, the highest rating offered to environmentally sustainable buildings. Only 5.7 percent of LEED projects in the United States have achieved this distinguished designation. The Leadership in Energy and Environmental Design (LEED) program rates the environmental sustainability of projects based on...

                                      • NEWS

                                            Hear from the CWEA Engineering and Research award winners on their projects that won first place this year. Engineering Achievement of the Year: City of Paso Robles Wastewater Treatment Plant “Tertiary Treatment Facilities Project and Nutrient Harvesting System” In 2019, the City of Paso Robles completed two projects at its wastewater treatment plant. One...

                                        • NEWS

                                            Regional San’s landmark recycled water program—previously known as the South County Ag Program—has been rebranded. Now known as Harvest Water, the program will be one of the largest water recycling projects in California and will deliver up to 50,000-acre feet per year of tertiary-treated recycled water to an estimated 16,000 acres of farm and habitat...

                                          • NEWS

                                              After four years of work, the Advanced Water Treatment Operator™ (AWTO™) certification program is now complete and launched by the California-Nevada Section of the American Water Works Association (CA-NV AWWA) and the California Water Environment Association (CWEA). The exam for the highest-grade level, known as AWT5™, launched on July 15th, completing the planned roll-out of...

                                            • NEWS

                                                The Water Research Foundation (WRF) has funded 12 new Research Priority Program projects with a total funding amount of $2,125,000. This research allocation will be significantly leveraged with partnership funding and in-kind support. Requests for Proposals (RFPs) for these projects will be released in August 2020. The Research Priority Program is WRF’s largest strategic research program, addressing...

                                              • NEWS

                                                  JPA Approves Critical Service Agreements The East County Advanced Water Purification (AWP) Joint Powers Authority (JPA) Board of Directors unanimously approved water and wastewater service agreements this week, moving this significant drinking water project one-step closer to reality. These water and wastewater agreements are critical to the JPA’s eligibility for key Program financing opportunities. Water...

                                                • NEWS

                                                    Coverage of biosolids and co-digestion supported by Anaergia Construction Underway at California’s Sterling Natural Resource Center, Incorporating Fibracast’s Advanced Membranes and Anaergia’s Anaerobic Digestion System Anaergia Inc. and its sister company Fibracast Ltd. are pleased to announce that they have been added to the team selected for the construction of the Sterling Natural Resource Center (SNRC)...

                                                  • NEWS

                                                      West County Wastewater and EBMUD (East Bay Municipal Utility District) announced a recycled water partnership that will preserve valuable drinking water for the region and support West County Wastewater’s ongoing mission of environmental stewardship and protecting public health. Under an existing agreement, West County Wastewater sends the majority of its treated secondary wastewater to EBMUD....

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                                                        CWEA’s fourth free COVID-19 in CA webinar From April 30, 2020 The experts tell us the coronavirus is here to stay. How do water reuse and wastewater professionals fine tune their treatment processes to better deactivate/remove virus to protect themselves and their community? Is there even infectious virus in wastewater? Three experts in wastewater disinfection...

                                                      • NEWS

                                                          Today, at an event at the U.S. Environmental Protection Agency (EPA) headquarters in Washington, D.C., EPA Administrator Andrew Wheeler, and U.S. Department of the Interior Secretary David Bernhard joined federal, state, tribal, local and water sector partners to announce the National Water Reuse Action Plan: Collaborative Implementation (Version 1). The actions that EPA and its...

                                                        • NEWS

                                                            Systems approaching viability in field tests of Duke-led Gates Foundation “Reinvent the Toilet” project By Ken Kingery DUKE Pratt School of Engineering As legend has it, when French workers felt their livelihoods threatened by automation in the early 1900s, they flung their wooden shoes called sabots into the machines to stop them. Hence the word...

                                                          • NEWS

                                                              From Water Reuse California… WateReuse California and the National Water Research Institute released a guidance document for developing a standard operating procedure for bioanalytical testing for potable reuse. View Guidance Document NWRI facilitates the Bioanalytical Implementation Advisory Group (BIAG), which is working with staff from the California State Water Resources Control Board to develop standard operating procedures for...

                                                            • NEWS

                                                                From WateReuse… Reclamation Awards $1.6 Million for Water Reuse Research The Bureau of Reclamation announced that it has awarded $1.6 million to four WateReuse Association members to fund Title XVI water reclamation and reuse research studies. When non-federal cost-share contributions are included, these studies will accomplish more than $7.6 million in water reuse research. The...

                                                              • NEWS

                                                                  Story by Brave Blue World Production Team Liam Neeson narrated Brave Blue World shown to international water community Uplifting stories of innovation and problem-solving inspires audience Grassroots screenings scheduled before European premiere Global water leaders, innovators and activists gathered for the world premiere of Brave Blue World on December 16th in Hollywood. The powerful documentary...

                                                                • NEWS

                                                                    From USC news service A team led by USC Viterbi’s Adam Smith has found that purified water returned to Southern California aquifers often becomes contaminated with antibiotic-resistant bacteria, a realization that could have major implications on the global water supply. By Avni Shah Wastewater recycling offers a variety of environmental benefits but also a big...

                                                                  • NEWS

                                                                      Article by UC Riverside… Get over it? When it comes to recycled water, consumers won’t UC Riverside study shows that, while people can come to appreciate recycled water’s benefits, they still don’t want to use it By J.D. WARREN, Director, News & Information, UC Riverside  If people are educated on recycled water, they may come...

                                                                    • NEWS

                                                                        Now it’s official – No Drugs Down the Drain and We Mean All Drugs Effective August 21, 2019 the EPA has now banned healthcare facilities from flushing (“sewering”) any and all drugs including the hazardous waste drugs previously on on a flush list for healthcare providers. Finally! EPA’s website with details on the new no-flush...

                                                                      • NEWS

                                                                          In the mid-1920’s, with the Metropolitan Water District of Southern California just forming and the Colorado River water supply not yet secured, the LADWP recognized that its water supplies would be outstripped by the rapid growth and development of Los Angeles. In late 1929, because of the forecast water demands, LADWP officials decided to pursue...

                                                                        • NEWS

                                                                            The Orange County Water District (OCWD; the District) Board of Directors voted to award the contract to construct the 30 million gallon per day (MGD) Final Expansion of the world-renowned Groundwater Replenishment System (GWRS) to Shimmick Construction Company, Inc. The overall project cost is $310 million with the construction portion being approximately $200 million. The...

                                                                          • NEWS

                                                                              Coverage of asset management topics is supported by MentorAPM This article was produced and published by the Water Education Foundation as part of its Western Water news. The Foundation can be found at www.watereducation.org. Our thanks to WEF for permission to republish their article. By Gary Pitzer Water Education Foundation WESTERN WATER NOTEBOOK: Lower flows damage...

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                                                                                Coverage of asset management topics is supported by MentorAPM AN INTERVIEW WITH WATER EXPERT PAUL BROWN California’s wastewater systems were designed decades ago with flow rates predicted to be much higher than what we’re seeing today. Corrosion, odor, grit, nutrients and less water for reuse are all consequences of declining sewer flows. So now what? To...

                                                                              • NEWS

                                                                                  Public outreach programs can reap multiple benefits for utilities and other public agencies, including community support for projects and utility rate increases; third-party credibility with community and policymakers; increased awareness among community members about project issues; lasting relationships with community leaders; and, in many cases, better decisions. An effective public outreach program takes effort and...

                                                                                • NEWS

                                                                                    State Water Board press release… Key Details Policy for Water Quality Control for Recycled Water was first drafted in 2009 and amended in 2013 Recycled water is water that is deemed suitable for a beneficial use after treatment An expert advisory panel made recommendations for monitoring constituents of emerging concern that were incorporated into the Policy One...

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                                                                                      From the State Water Board website… Water Recycling Funding Program Pilot Project Grant Requirements The Water Recycling Funding Program provides grants to assist public agencies with the construction of pilot projects for new potable reuse.  The applicant must demonstrate that the pilot project will develop new information that does not currently exist and increase the...

                                                                                    • NEWS

                                                                                        Moulton Niguel Water District is celebrating its 50th year of operating one of the state’s most successful water recycling programs, which reuses more than 2 billion gallons of water every year. As one of the first agencies to use recycled water in Orange County in the early 1960s, Moulton Niguel Water District now provides recycled water...

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                                                                                           The California Water Commission (Commission) recently announced that Regional San will receive $280.5 million—the maximum requested funding amount—in Proposition 1 grant funding to help make the South County Ag Program a reality for the Sacramento region. The South County Ag Program will deliver highly treated recycled water for agricultural irrigation in the southern portion...

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                                                                                            Cool new video from LA Sanitation featuring: City of Los Angeles 2025 local water goal – One Water Los Angeles Donald C Tillman Water Reclamation Plant Advanced Water Purification demonstration project Ozone treatment option that was chosen LA Groundwater Replenishment project Featuring interviews with LABS Past President Bryan Trussell and member Wendy Broley.

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                                                                                              The purpose of this standard is to define the critical requirements for the effective operation and management of a DPR water program. ISBN: 9781613004739 Publisher: AWWA Publication date: 2018 AWWA catalog no: STG_0086771 Media Type: PDF Number of pages: 14 DOI:http://dx.doi.org/10.12999/AWWA.G485.18 Agency reviewers include: J.D. Brown, Contra Costa Water District, Concord, Calif. S. Deshmukh, West Basin Municipal Water District, Carson, Calif....

                                                                                            • NEWS

                                                                                                The California-Nevada Section of the American Water Works Association (CA-NV AWWA) and California Water Environment Association (CWEA) have signed a memorandum of agreement to jointly develop the Advanced Water Treatment Operator (AWTO) Certification program. The certification exams are expected to be ready in the Spring of 2019. The certification will be open to all California...

                                                                                              • NEWS

                                                                                                  About this series:  Each month CWEA is interviewing an innovative thinker in the water profession. We’re asking each person “The future of the water profession is …” Juan Guerreiro Deputy Director City of San Diego, Public Utilities Department Grade V Wastewater Treatment Operator, SWRCB Dual-Associate Degrees, Water and Wastewater, Cuyamaca College Bachelors Degree, San Diego State University...

                                                                                                • NEWS

                                                                                                    About this series:  Each month CWEA is interviewing an innovative thinker in the water profession. We’re asking each person “The future of the water profession is …” Prior to becoming a water professional, Richard Salas worked for McDonald Douglas as a structural mechanic. “Working at McDonald Douglas gave me an appreciation of attention to detail,” Richard...

                                                                                                  • NEWS

                                                                                                      Flush with Possibilities With a new water purification plant, Santa Clara Valley Water District is driving water reuse to advance reliable, sustainable water supplies.  On a sunny afternoon last spring, four Silicon Valley leaders took large swigs of recycled water to show that it’s clean enough…well…to drink. And how does that filtered, decontaminated, and disinfected...

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                                                                                                        Can 1+1=3, or maybe even more?  That is the question Stanford and Silicon Valley Clean Water (SVCW) hope to answer with two pilot plants using an innovative anaerobic secondary treatment process. The ‘SAF-MBR’ project, which stands for Staged Anaerobic Fluidized-bed Membrane Bioreactor, has two main components – the membrane system and the fluidized-bed. Both are...

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                                                                                                          This post originally appeared on UC Berkeley’s Legal Planet blog. Of Dreamliners and Drinking Water By Michael Kiparsky and Christian Binz As we have written previously, potable water reuse (recycling water to augment water supplies) is a promising way to diversify urban water supply portfolios. Direct potable water reuse (DPR), the injection of highly purified...

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                                                                                                            During the Legislature’s 2017 session several new California laws were passed that will impact water systems. The Governor has now signed each into law. AB 967  Biocreamation Facilities Bill – this law becomes effective January 1, 2018. Wastewater districts will have the legal authority to accept or reject liquid cremation of human remains from licensed...

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                                                                                                              Below is the joint comment letter CWEA and CA NV AWWA have submitted focused on the operator certification piece of the DPR Report to the Legislature on the Feasibility of Developing Uniform Water Recycling Criteria for Direct Potable Reuse. Dear State Water Resources Control Board: Thank you for the opportunity to comment on the State Water...

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                                                                                                                  The path to on-site non-potable water reuse has been beset by roadblocks, but a new initiative is removing them to clear the way for more efficient water management. Whether challenged by multiyear drought, extreme flooding, impacts due to a changing climate, or increased demand on water supplies due to population growth, water utilities across...

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                                                                                                                  WE&RF released a new research report on pretreatment standards for agencies interested in adding or expanding their water reuse facilities. The report features three California agencies: City of Los Angeles; City of San Diego and the Orange County Sanitation District. The project was funded by SoCal based Metropolitan Water District. The research project consisted of...