The Water Environment Federation is a not-for-profit association that provides technical education and training for thousands of water quality professionals who clean water and return it safely to the environment. WEF members have proudly protected public health, served their local communities, and supported clean water worldwide since 1928.


Find out about WEFTEC, the world's largest water-quality event! Registration for WEFTEC 2018 will be open in the spring.

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Learn About Water Quality

Find out about technical resources, how to get involved and see conferences and events sorted by topic.

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What's Happening

WEF is now accepting applications for its fourth annual National Municipal Stormwater and Green Infrastructure Awards Program. Submit your nomination today!

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July 16, 2018 — Mike McGill, president of WaterPIO, explains the importance of regular, proactive communications from utilities to customers and the media, and how that approach provides benefits in emergency situations.

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July 17, 2018 — See you at WEFTEC, where your customizable program awaits you, according to Program Chair Sarah Reeves.

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Committee Leadership Council (CLC) is seeking nominations for three Communities of Practice director positions. If you have leadership expertise, strategic thinking and planning skills, passion for advancing WEF's vision, and an understanding of WEF committees, submit your application by July 31, 2018.  

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WEF is preparing baseline data to establish the current amount of resource recovery at water resource recovery facilities (WRRFs) in the U.S. and Canada. Please Participate in WEF’s Resource Recovery Data Collection Survey! WEF is accepting responses until Aug. 10!

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VIDEO: Experience the latest technological developments, new ideas, expanded educational opportunities, fresh content, and the most expansive water quality exhibition in the world

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Braden Milford has won the 2018 U.S. Stockholm Junior Water Prize (SJWP), the nation’s most prestigious youth competition for water-related research.

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Holly Tetzlaff will be representing Canada in Stockholm for the 2018 Stockholm Junior Water Prize.

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Join environmental professionals from around the world for a showcase on reuse and disinfection. This exciting symposium will examine current reuse and disinfection issues, regulatory requirements, and methods for analyzing problems and finding innovative solutions.

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Activated Sludge and Nutrient Removal, MOP OM-9, 3rd Edition, helps operators and other wastewater treatment professionals understand the activated sludge process, solve performance problems, and improve operations.

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Educate your customers about the Do Not Flush logo and help them understand how anything else, including wipes, is bad news for the pipes and pumps that carry water from homes to local water resource recovery facilities.

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WEF respects the privacy of its members and visitors to our websites. As part of our commitment to protecting that privacy, we have updated our privacy statement.

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Innovative products and services available to the water sector.

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The WEF Buyer’s Guide makes it easy to find the solutions provider that’s right for you. Cut through the clutter of search engine results with this easy to navigate online guide.

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Upcoming Events

Disinfection and Reuse Symposium 2018

  • This symposium will bring together environmental professionals from around the world for a showcase on reuse and disinfection. This exciting symposium is designed to educate practitioners, facility owners, operators, researchers, and public administrators.