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"If you are not happy with the Self-Study Training Materials, for any reason, just let us know and I'll personally rush you a 100% refund." - Robert A. Funk, P.E., President OCTWQA.org
Wastewater Treatment
Edition A - Grade IV Wastewater Plant Operator Practice Exam (WW-560)
Grade 4. Edition A is the current edition.
Edition C - Grade III Wastewater Plant Operator Practice Exam (WW-550)
Grade 3. Edition C is the current edition.
Edition B - Grade III Wastewater Plant Operator Practice Exam (WW-506)
Grade 3. Edition C is the current edition.
Edition A - Grade III Wastewater Operator Practice Exam (WW-19)
Grade 3.Edition C is the most current.
Edition D - Grade II Wastewater Plant Operator Practice Exam (WW-540)
Grade 2. Edition D is the current edition.
Edition C - Grade II Wastewater Plant Operator Practice Exam (WW-513)
Grade 2. Edition D is the current edition.
Edition B - Grade II Wastewater Plant Operator Practice Exam (WW-505)
Grade 2. Edition D is the current edition.
Edition A - Grade II Wastewater Operator Practice Exam (WW-18)
Grade 2. Edition D is the current edition.
Edition E - Grade I Wastewater Plant Operator Practice Exam (WW-530)
Grade 1. Edition E is the current edition.
Edition D - Wastewater Plant Operator Practice Examination (WW-512)
Grade 1. Edition E is the current edition.
