Exam References

Testing Services

New 2017 standardized exams for wastewater treatment, wastewater collection, water distribution, and water treatment operators are available for administration beginning May 1, 2017. Contact your certifying authority to determine which exam preparation materials are appropriate for your jurisdiction and exam date.

Exam References

To access exam references, click on a page below:


Water Treatment


Very Small Water System

Wastewater Treatment


Industrial Waste

Water Laboratory Analyst

Wastewater Laboratory Analyst

Biosolids Land Applier

Backflow Prevention Assembly Tester

Plant Maintenance Technologist