Wastewater operator CEU course
Disinfection 3: Judgement at Three Plants
Approved for renewal credit in IllinoisDisinfection isn't always straightforward - three real plants reveal how contact time, residual control, and permit limits can cause tricky decisions in daily operations. This hour helps you weigh those challenges and make smart calls to keep disinfection effective and compliant.
Course summary, as it appears on your certificate
Enable experienced wastewater operators to apply judgement calls in managing disinfection at three real plants, understanding real tradeoffs in operational control, process variability, and regulatory context beyond Level 2 mechanics.
Level 3 — judgement calls and real cases — assumes Level 2
Credit awarded: 1 hour — Technical
The Illinois 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not mark its own homework: a licensed operator reviews the content and the course cannot be sold while that review is out of date.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 Illinois records against your renewal.
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
One-time payment · lifetime access to this course
About 76 minutes of video · 1 hour
Already have an account? Sign in to purchase.
Full refund within 7 days if you have not completed the course — refund policy.
Training a team? Buy seats for your operators — card or purchase order, with a completion record you can export.
Can your plant pay? See how, with a request to print for your supervisor.