Our Mission: To connect and enrich the Illinois water community
and increase the awareness of the impact and value of water.

Who We Are:

The Illinois Water Environment Association is a community of dedicated professionals working to advance fundamental knowledge of the Illinois water environment. Its members are engineers, scientists, plant operators, manufacturer’s reps and students.

Click HERE to learn more.

Attend our upcoming events:

September 16-19 
IAWA Annual Conference

September 25
Pretreatment Coordinators Workshop

September 27 - October 1
WEFTEC 2025 Chicago

September 28
CSWEA and IWEA Annual WEFTEC Members Reception

Latest News:

Use the links below to stay up-to-date with IWEA's latest news.

Stay up-to-date by checking out the September  2025 eNews.

See the Summer 2025 Clarifier, including a Golf Outing recap.

Our 2025 Sponsors:

Click HERE to learn about benefits associated with IWEA sponsorship.

Upcoming Events

Sep
16

IAWA Annual Conference

See Illinois Association of Wastewater Agencies :: Home (ilwast...
Sep
25

IWEA Pretreatment Coordinators Workshop

IWEA Pretreatment Coordinators Workshop
September 25, 2025
...