Becoming a Certified Water Operator in Illinois

Requirements

Process

Packets for each Class from IEPA

Class A

Class B

Class C

Class D

Application

Request to take the operator certification exam form

Fillable pdf request form

Instructions for Completing Application for Certification as a Drinking Water Operator

IEPA Exam Schedule

2026 Water Exam Schedule

Contact IEPA Water Operator Certification Department for questions at 217-785-0561.

Corinne Cullina- corinne.cullina@illinois.gov

Study Information

Math Handbook from NRWA

Basic Math Handbook

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

Operator Math

Math Part 2

Math Part 3

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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