Wastewater operator continuing education
Disinfection CT: Contact Time Is Not Volume/Flow
Approved for renewal credit in ILTo correct common misconceptions about disinfection contact time (CT) by demonstrating that contact time is governed by actual water residence time and mixing behavior, not simply nominal tank volume divided by flow rate, and to provide operators with practical knowledge to accurately assess and manage disinfection performance to ensure regulatory compliance and protect public health.
Level: Advanced — builds on working knowledge of the subject — specialised operations
Credit awarded: 1 CEU hour — Technical
One hour of study is one hour of credit. Your certificate reports the hours, which is what IL records against your renewal.
What's included
- Self-paced online coursework you can start, pause, and resume anytime
- A short completion quiz to confirm your understanding
- 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 73 minutes of video · 1 CEU hour
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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.