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Becoming a Certified Water Operator in Illinois




Packets for each Class from IEPA

Class A

Class B

Class C

Class D


Request to take the operator certification exam form

Fillable pdf request form

IEPA Exam Schedule

Water Exam Schedule

Contact IEPA Water Operator Certification Department for questions at

Andrea Rhodes -
Tatum DeMay -

Study Information

IRWA Certification Overview

Advanced Drinking Water A & B Operations Class A & B

Math Handbook from NRWA

Basic Math Handbook

Links to help you study (Thanks to

Operator Math

Math Part 2

Math Part 3