Wastewater operator continuing education

Tracer Testing a Contact Tank: t10 and Baffling

Training certificate — Rhode Island requires no renewal hours

Operators often miss hydraulic problems like short-circuiting or slime buildup in contact tanks because they don't know how to run or read tracer tests. This hour shows how to perform tracer studies, interpret T10 and baffling results, and use them to improve disinfection and tank flow.

Course summary, as it appears on your certificate

To equip wastewater operators with practical knowledge and skills to conduct tracer tests on contact tanks, interpret T10 and baffling values, recognize common operational pitfalls, and make informed decisions to optimize contact time and disinfection efficiency.

Level 1 — what it is and why — the foundations, for operators new to the subject or wanting a refresher

Credit awarded: 1 hour — Technical

The Rhode Island course number is issued by the Agency for this course and is printed on your certificate.

Reviewed by: Robert Risley, Class 1 Wastewater Operator — reviewed November 2026

AquaCert does not mark its own homework: a licensed operator reviews the content and the course cannot be sold while that review is out of date.

One hour of study is one hour of credit. Your certificate reports the hours, which is what Rhode Island records against your renewal.

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What's included

• ✓ Self-paced online coursework you can start, pause, and resume anytime
• ✓ Short questions along the way, and a short final quiz to pass for your certificate (retake it as often as you need)
• ✓ An official certificate of completion (PDF) with a public verification code
• ✓ Progress saved to your My Learning dashboard