HI Water WW Operator Practice Questions - Hawaii Water Wastewater Operator Certification Exam

How many grades of water treatment plant operator certification does Hawaii offer?

Two grades (1 and 2) Three grades (1, 2, and 3) Four grades (1, 2, 3, and 4) Six grades (1 through 6)

Correct Answer:

Four grades (1, 2, 3, and 4)

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