Test your knowledge of wastewater and laboratory topics using Skills Builder - a set of quizzes provided by the Water Environment Federation as a free resource for operator education.  The quizzes incorporate math, safety, and a variety of other topics.  Skills Builder provides feedback on your answers as well as references for follow-up study sources.  Results are completely confidential and are not recorded.

When you're ready, choose a category (laboratory or wastewater) and skill level (fundamental, intermediate, or advanced) and begin your Skills Builder Quiz!

Additional Resources
If you find WEF's Skills Builder tool useful, you may want to check out the following additional study materials:

• Operations Glossary
• WEF Training Products

If you are interested in additional technical knowledge, order a copy of the source material used for WEF's Skills Builder.

• Activated Sludge - MOP OM-9
• Basic Laboratory Procedures for Wastewater Examination
• Operation of Municipal Wastewater Treatment Plants - MOP 11
• Operations Training/ Activated Sludge Process Control Training Manual
• Operations Training/ Solids Handling Training Manual
• Safety and Health in Wastewater Systems - MOP 1
• Standard Methods for the Examination of Water and Wastewater
• Wastewater Biology: The Microlife
• Water and Wastewater Laboratory Techniques

Acknowledgments
The Water Environment Federation would like to thank the following members who helped review the bank of questions provided for Skills Builder: 

• Lynn Brabec, City of Elkhart, IN
• Bess Clancy, County of Brunswick (NC)
• Margaret Doss, Columbia County Waterworks (GA)
• Ernie Earn, Georgia Department of Natural Resources
• Starlin Jones, City of Sparks (NV)
• Kim Riddell, City of Delphos (OH)
• Kevin Winnett, Dow Chemical
• John Young, Savannah River National Laboratory