The Illinois Sewage Works association was founded in 1935. The organization was incorporated as the Illinois Association of Water Pollution Control Operators in 1972.
The purpose of the Illinois Association of Water Pollution Control Operators is to bring together wastewater treatment professionals to educate, encourage the exchange of ideas, and exhibit the latest equipment and technologies.
The Illinois Association of Water Pollution Control Operators hosts an annual four day conference in April of each year in Springfield, Illinois. The association also provides regional, one day conferences located in four selected areas within the state of Illinois in the fall.
The Illinois Association of Water Pollution Control Operators provides its membership four quarterly newsletters per year containing up to date articles and advertising.