Study Guides

Testing Services

Study materials to help you succeed.

ABC works with AWWA and WEF to develop guides to help operators prepare for taking a certification exam. These guides are available for purchase from:

Water Treatment and Distribution Operators
Wastewater Treatment, Collection and Wastewater Lab

Wastewater and Laboratory practice questions developed by WEF are available in the Skills Builder section of WEF's website.

Very Small Water Systems Operators


Biosolids Land Applier Operators