Wastewater operator continuing education

Infiltration or Inflow: Telling Them Apart

Approved for renewal credit in IL

To enable wastewater treatment operators to accurately distinguish between infiltration and inflow in wet weather conditions, understand their different impacts and remedies, interpret flow hydrographs correctly, and apply practical decision-making at the headworks to optimize plant operation and compliance.

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
$19.00 USD

One-time payment · lifetime access to this course

About 72 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.