Becoming a Certified Wastewater Operator in Illinois


**Class K and Class R Certificates of Technical Competency may not be renewed. Operators must retake the examination and reapply when a Class K or Class R certification expires.**


Request to take wastewater exam

Basic operator in training application

IEPA Exam Schedule

Wastewater Exam Schedule

Contact IEPA Wastewater Operator Certification Department for questions at (217) 785-0561 or EPA.OperatorCertification@Illinois.gov

Study Information


Links to help you study (Thanks to WaterOperator.org)

Industrial Math Formulas

Advanced Wastewater Math

Illinois Rural Water Association
3305 Kennedy Road; PO Box 49
Taylorville, IL 62568
Phone: 217-287-2115

Fax: 217-824-8638
Email: ilrwa@ilrwa.org

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