• Welcome to


    A water quality education and networking association covering Illinois, Wisconsin and Minnesota

    Wheaton Sanitary District | Wheaton, IL

  • City of Racine, WI

  • Western Lake Superior SD

  • Blue Lake WWTP | Shakopee, MN

  • City of Faribault, MN

  • NEW Water Effluent | Green Bay, WI

  • Village of Wauconda, IL

  • Western Lake Superior SD | Duluth, MN

  • Northern Moraine WRD | Island Lake, IL

News & Announcements

2022 CSWEA Officer Nominations Announced!

View Nominees

CSWEA 95th Annual Meeting – Attendee Registration Now Open!

The CSWEA 95th Annual Meeting will be held in-person (we hope) May 17-19, 2022 at Monona Terrace. CSWEA invites you to join us for an excellent technical track, workshops, poster sessions, social events, a great selection of exhibitors and product showcases and more!

Register Today!

Attendees: Info | Daily Planner | Registration | Attendee List

Exhibitors & Sponsors: Info  |  Exibitor Registration | Sponsor Registration

Hotel Bookings:
Hilton Madison – Call: 1-800-445-8667 and use booking code WATER 

Best Western Premier Park Hotel | AC Hotel Madison | Hampton Inn & Suites Madison

Biosolids and COVID-19 Factsheet

With the emergence of the 2019-2020 Coronavirus disease (COVID-19) pandemic, the fate of the virus in wastewater treatment operations and biosolids and potential health risks have become subjects of public interest. Therefore, IAWA, Illinois Water Environment Association, and Central States Water Environment Association worked jointly to prepare this fact sheet on the safety of biosolids with respect to COVID-19. The fact sheet is intended to be used mainly as a resource to address questions from individuals regarding biosolids and COVID-19.

Click Here to Download

CSWEA IL & WI Water’s Worth It Essay Competition



The Illinois and Wisconsin sections of the Central States Water Environment Association invite you to join the WATER’S WORTH IT campaign by writing a short essay about the human role in the water cycle.

ILLINOIS: Info| Submit Online

WISCONSIN: InfoSubmit Online

CSWEA Call for Webinars

Central States Water Environment Association is continuing to build our webinar series and we are looking for presenters who are interested in sharing their topics online. All topics will be considered and all webinars qualify for PDH’s. You may submit online via the link below.




Info | Register


Upcoming Events

tue31may(may 31)10:00 amCSWEA Operator Training Webinar - Fundamentals of Preliminary and Primary Treatment1.5 CEU's for IL, WI & MN Operators / 1.8 PDH's for all Professional Engineers

Event Details

$25 – Members (Discount Code: CSWEA)
$30 – Non-Members
$5 – Student (Discount Code: Student)
$10 – International (Discount Code: International)

Info | Register

thu02junAll DayWI Section 2022 Classic Collection System SeminarWatertown, WI - 4 CREDIT HOURS WILL BE AVAILABLE FOR MORNING & 2 FOR AFTERNOON

Event Details

Attendee Registration Now Open!
June 2nd, 2022
34th Annual Classic Collection System Seminar
Watertown, WI


Attendees: Info | Register

Exhibitors: Info | Register

thu16jun(jun 16)1:00 pmfri17(jun 17)1:00 pm2022 MN INDUSTRIAL PRETREATMENT SEMINAR

Event Details

Thursday, June 16, 2022 – 1:00 pm Arrive and Check-In

Cold Spring Brewing Company
Third Street Brewhouse
219 Red River Ave N
Cold Spring, MN 56320

The Minnesota Section of the Central States Water Environment Association (CSWEA) Industrial Wastes Committee is excited to invite municipal and industrial water professionals to Cold Spring, Minnesota for a small group facility tour and first hand conversation with industry, municipal and engineering representatives. We will discuss roles, responsibilities, challenges and examples of a successful pretreatment program.

Info | Register

mon27junAll Daywed29WEF Stormwater Summit 2022Minneapolis, MN

Event Details

June 27-29, 2022

Minneapolis, MN

wed29junAll Day2022 IL Collections System ConferenceNIU Campus | Naperville, IL

Event Details

NIU Campus | Naperville, IL

Call for Abstracts: Info | Submit

View all events
Founded by CSWEA, Global Water Stewardship resolves sanitation issues in the developing world by educating people and engineering sustainable centralized solutions that keep waterways clean and communities healthy.

Mission Statement

To provide a Water Environment Federation (WEF) organization (Illinois, Minnesota, Wisconsin) offering multiple opportunities for the exchange of water quality knowledge and experiences among its members and the public and to foster a greater awareness of water quality achievements and challenges.