WEFTEC Chicago

29 Sep. - 01 Oct. 2025 | Technical Exhibition & Conference

The WEFTEC, an abbreviation for the "Water Environment Federation's Technical Exhibition and Conference", is regarded as the largest and most significant trade fair and conference for water quality in America. Organized by the Water Environment Federation, this annual event serves as a central meeting point for recognizing the latest developments in the water industry..

It is held at the McCormick Place Convention Center in Chicago, one of the most prestigious exhibition venues globally. Here, experts, professionals, and enthusiasts from various sectors gather, primarily from the fields of drinking water, water reuse, recovery, and wastewater treatment.

Key areas of focus at WEFTECc include the Drinking Water Pavilion, which emphasizes water reuse and drinking water treatment; the Drone Pavilion, which discusses inspections and data collection; and the Innovation Pavilion, showcasing cutting-edge products and startups. Also notable are the Smart Water and Cybersecurity Pavilion, featuring products that protect networks, devices, and data for critical infrastructure applications and control and automation, and the Rainwater Pavilion, which highlights rainwater technologies, green rainwater infrastructure, and rainwater control measures. Additionally, technologies specializing in the treatment and disposal of reused water - be it rainwater or wastewater - are introduced.

A highlight of Weftec is the awards for innovative products and the challenging "Operations Challenge" skill competition for water resource recovery facility staff. The event attracts numerous exhibitors and visitors who are constantly in search of the latest trends, technologies, and best practices in water management.

The McCormick Place Convention Center in Chicago is not only a prominent center for exhibitions and conferences but also easily accessible and offers visitors top-notch infrastructure. Being one of the largest conference centers in the world, it provides an optimal setting for events of such magnitude.

The WEFTEC will take place on 3 days from Monday, 29. September to Wednesday, 01. October 2025 in Chicago.

In 436 days
29.09.2025 - 01.10.2025*
Monday - Wednesday, 3 days
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professional visitors only


Local time:
19:46 h (UTC -05:00)

Fair location:

McCormick Place Convention Center,
2301 S Dr Martin Luther King Jr Dr, IL 60616 Chicago, Illinois, USA


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Fair organizer
Water Environment Federation
601 Wythe Street
VA 22314-1994 Alexandria, Egypt
Tel: +1 800 6660206
Fax: +1 703 6842492
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Past editions:
  • 30 Sep. - 04 Oct. 2023
  • 08. - 12. October 2022
  • 16. - 20. October 2021
  • 05. - 09. October 2020
  • 21. - 25. September 2019
  • 29 Sep. - 03 Oct. 2018
  • 30 Sep. - 04 Oct. 2017

Fair location:

McCormick Place Convention Center,
2301 S Dr Martin Luther King Jr Dr, IL 60616 Chicago, Illinois, USA


for trade fair date in Chicago

Product groups: chemical handling equipment, chemicals, controlling, management and collection systems for water and wastewater, monitoring, pumps, sampling, Sewage sludge, testing, valves, …

Disclaimer: No responsibility is taken for the correctness of this information. Errors and alterations excepted! Fair dates and exhibition sites are subject to change by the respective trade fair organiser.


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Where does the WEFTEC taking place?
The WEFTEC fair takes place in Chicago, at the McCormick Place Convention Center.

When is the WEFTEC taking place?
Visit the WEFTEC from 29 Sep. - 01 Oct. 2025.

How often does the WEFTEC take place?
The WEFTEC takes place annually.

What kind of fair is the WEFTEC?
The WEFTEC is an exhibition for Water Management, Environment and Cleaning.