Licensing exams can be challenging. Our Exam Study Guide helps you prepare by presenting questions similar to those on an actual exam. You can find many more sample questions on the TPO website at www.tpomag.com/study.

An innovative biological nutrient removal process helps an Illinois village complete a successful plant expansion, improve treatment quality and end a consent decree.

Automating algae control in clarifiers, thickeners, and similar tanks can dramatically and cost effectively improve safety and efficiency.

A North Carolina wastewater treatment plant resolves a clarifier issue with a self-lubricating bearing that boosts reliability and cuts maintenance costs.

From the humblest of beginnings, Daniel Wurst built a long, successful and award-winning career in the clean-water business.