Becoming a Certified Wastewater Operator in Illinois

Requirements

**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.**

Application

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

From IEPA

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

Industrial Math Formulas

Advanced Wastewater Math