IA Water Operator Practice Questions - Iowa Water Wastewater Operator Certification Exam

What are the four grades of operator certification offered by Iowa for water treatment and wastewater operators?

Grades A, B, C, and D Grades I, II, III, and IV Levels Apprentice, Journeyman, Master, and Expert Classes Basic, Intermediate, Advanced, and Professional

Correct Answer:

Grades I, II, III, and IV

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