Learn · Water and Wastewater
Water and Wastewater
Treatment and distribution operations, and the state certification ladder the job legally requires.
Learning paths
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Content
Treatment 10 lessons
Water
Operations 4 lessons
Safety
Certification 9 lessons
- Operator Certification: The Mandatory Ladder
- Grade Exams: What Each Level Tests
- Operator Certification by State (WPI Reciprocity)
- The Chief Operator Path
- The Federal Frame: Why Every State Certifies Operators
- ABC Standardized Exams: How WPI Testing Works
- The Professional Operator (PO) Designation
- How States Name Their Grades: T1-T5, Class D-A, Grade 1-4A
- Very Small Water Systems Certification