Sewage Treatment Systems (STS) Program
The Operator Training Committee of Ohio, Inc. administers this program under the direction of the Ohio Department of Health. Residential Water and Sewage Program Bureau of Environmental Health Ohio Department of Health 246 N. High St. - 3rd floor Columbus, Ohio 43215 Telephone: 614-644-7551 Fax: 614-525-3851 E-mail: Sewage@odh.ohio.gov
About the STS Program
All persons registering as a sewage treatment system installer, service provider, or septage hauler shall take a test on the sewage treatment systems rules. Effective February 1, 2023, there is a $65 fee for this exam.
The test is an open-book online exam with 75 questions. You will have 3 hours to complete it. The test is available through Local Health Districts, OhioTrain, and OTCO. You have up to 5 attempts to complete the exam at no additional charge.
In 2020, OTCO began offering continuing education on wastewater treatment approved by the Ohio Department of Health to meet the annual requirements for STS professionals. Whether you are an ODH STS Professional Operator or an OEPA Certified Professional Wastewater Operator, OTCO has the training you need.
STS Exam Information
Initial Exam Fee
$65 fee effective February 1, 2023. Payment via credit or debit card during registration. Checks are not accepted.
Click Here for $65 ExamExam Format
Open-book online test with 75 questions. You will have 3 hours to complete the exam.
Attempts
You have up to 5 attempts to complete the exam at no additional charge.
Reference Material
Click here for exam materials — OAC 3701-29. The exam can be attempted from your office, home, tablet, or smart phone.
Click Here for Reference MaterialContinuing Education for STS Renewals
Continuing Education Courses for STS renewals are offered in accordance with Ohio Administrative Code 3701-29-03. Approved by the Ohio Department of Health 3/26/20. Online Course: $90. You can take the online exam five (5) times per $90 fee.
The reference textbook is the Ohio EPA Class A Training Manual, viewable via PDF. The exam can be attempted from your office, home, tablet, or smart phone.
Questions About the STS Program?
For questions regarding the OTCO online or paper exams, contact RaShawn Truss at OTCO.