5 Star Wastewater Operator Certification Exam Prep
of May 2024
1
Best Choice
Createspace Independent Publishing Platform
Createspace Independent Publishing Platform
Practice Exams: Wastewater Treatment Operator Certification
10
2
Best Value
Wastewater Operator Certification Exam Prep
9.9
3
Water Environment Federation
Water Environment Federation
The Wastewater Operator's Guide to Preparing for the Certification Examination
9.8
4
American Water Works Association
American Water Works Association
Wastewater Operator Certification Study Guide
9.7
5
Createspace Independent Publishing Platform
Createspace Independent Publishing Platform
Practice Exams - Water Distribution Operator Certification: Grades 1 and 2
9.6
6
Createspace Independent Publishing Platform
Createspace Independent Publishing Platform
Practice Exams: Water Treatment Operator Certification
9.5
7
American Water Works Association
American Water Works Association
Water Operator Certification Exam Prep
9.4
8
Lumpy Water Math: Math for Wastewater Operators
9.3
9
Createspace Independent Publishing Platform
Createspace Independent Publishing Platform
Practice Exams: Water Distribution Operator Certification
9.2
10
Water Environment Federation
Water Environment Federation
Wastewater Treatment Fundamentals I: Liquid Treatment
9.1